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How to independently make a vibrating table for paving slabs. How to make a vibrating table for paving slabs with your own hands How to make a vibrating table yourself

Paving slabs appeared on the modern construction market relatively recently, but have already managed to win a leading position. It is quite easy to install, quite environmentally friendly and durable, so the paths in your country house will always remain clean and dry. However, this popular building material has one significant drawback - it is not so cheap.

If you want to save money when arranging a summer cottage and have at least elementary skills in construction, you can try to make it yourself. To do this, you will need a welding machine and knowledge of how to make a vibrating table with your own hands. Let's talk about this in more detail.

Principle of operation

Before building a vibrating table with your own hands, let's first find out what it is. The design is a metal base, on which, with the help of springs or other movable joints, an absolutely flat slab-top is attached, where forms with a concrete mass are placed. Another design element is an industrial vibrator, or an electric motor with eccentrics. At the time of engine operation, the tabletop vibrates evenly, while air bubbles come out of the molds on it, and the concrete mixture is tightly compressed.

Making a vibrating table with your own hands is a simple matter. You need to follow only two rules: the tabletop must be perfectly flat, and the engine must give uniform vibrations with a small oscillation amplitude. If you neglect these rules, paving slabs can turn out to be crooked, which will cause problems when laying them.

What are they

If you decide to make a vibrating table with your own hands for home use, then you need to stock up on a diagram or drawing of the so-called molding table, that is, one on which the mixture is directly compacted in the molds. The fact is that in industrial production, another type of table is used - knockout, or molding. Its main difference is that it is equipped with an additional nozzle that follows the contours of the mold. After the tile is completely dry, the mold is turned over and placed in a nozzle, the finished product falls out of vibration into the hands of the worker or onto a special transport tape. At home, knockout can be done manually or the nozzle can be made separately.

materials

So, if you decide to build a vibrating table with your own hands, you will need:

welding machine;
drill;
Bulgarian;
metal sheet with a thickness of at least 6-8 mm for countertops;
pipes for the legs of the bed;
corner or channel for the table frame;
metal plates;
powerful metal springs of the required diameter;
industrial vibrator or 220V electric motor;
bolts and washers for mounting the engine;

When assembling a vibrating table with your own hands, it is also better to make drawings for it yourself. Of course, now you can find anything on thematic resources, but, firstly, you will most likely have to pay for good detailed drawings, and secondly, they do not take into account the features and dimensions of your design. Therefore, it is better to take the finished drawing as a basis and recalculate it for your own needs.

Bed manufacturing

So, how to make a vibrating table with your own hands?

You need to start by assembling the base. Its dimensions can be arbitrary, it all depends on how many molds you plan to simultaneously place on the countertop. The standard and most convenient dimensions are 0.7x0.7 m.
The legs are metal pipes, although if they are not available, you can make them from a channel, corner, square, or whatever is at hand. At the base of the legs, metal plates with holes of the required diameter are welded, they will allow you to fix the vibrating table with anchor bolts or simply concrete it.
The height of the structure is also a purely individual matter, the main criterion here is the convenience for the master, you should be comfortable when working.
The legs are interconnected using a metal frame (square or rectangular), made from a corner. As a result, you should get a design that most of all resembles a table without a countertop.
At the corners of the structure, "glasses" 5-6 cm high are welded, made of a pipe with a diameter slightly larger than the diameter of the springs. If there is nothing to make "glasses" of, the springs can be welded directly onto the frame, and plates with bolt holes can be attached to their upper part.

Now we need a platform

As you can see, making a vibrating table with your own hands is quite easy. The bed is already ready, now we move on to the platform-tabletop.

We take a sheet of iron of the required size and by welding we equip it with sides from a metal corner, this is necessary so that the forms with concrete do not jump off the table during work.
On the reverse side of the sheet, we also weld “glasses”, similar to those that you attached to the bed. Make sure that they are strictly above the lower ones, as springs will be located between them, providing the necessary vibration.
In the center of the bottom of the tabletop, you also need to weld two pieces of a U-shaped channel with holes for bolts of a suitable diameter - an eccentric motor will be attached here.

That's all, the do-it-yourself tile vibrating table is ready, now it remains to fix the engine, turn the tabletop over and insert the springs between the glasses.

We select an electric motor

Of course, an industrial vibrator or an unbalanced motor can be purchased at the store. At the same time, it is necessary to correctly correlate the weight of your countertop and the power of the unit - too weak will not be able to provide sufficient vibration, and a very powerful one can rip the countertop off its place.

If you plan to use the vibrating table for a short time, then the engine from the washing machine can be a good solution. It is ideal for these purposes, however, it is able to withstand no more than 30 work cycles.

A few nuances

For the correct operation of the vibrating table, you need to accurately calculate the weight of the countertop.
The oscillation amplitude should be selected based on the parameters of the mixture and should be the same over the entire plane of the table.
It is necessary to accurately measure the amount of mixture placed in each mold, otherwise the tiles will come out different in thickness.

Vibrating table from a car tire

Is it possible to make a simpler vibrating table? Not everyone is able to develop drawings with their own hands, and not everyone can do welding work. It turns out that it is possible, however, it will not be so durable and solid, and the quality of the tiles made on such a table will be a little worse, but for some it may turn out to be a good option.

For such a vibrating table, you will need a tabletop made from a piece of plywood, chipboard or QSB, in the center of which a small power motor is fixed. Next, the structure is installed on the car tire with the engine down and secured with screws. For ease of operation and to ensure better vibration, you can use several tires stacked one on top of the other and fastened together.

We make tiles

Now let's talk about how paving slabs are made with our own hands. You already have a vibrating table, now you need to purchase or make your own forms for pouring concrete.

Next, we place the forms on the vibrating table and fill them with a concrete mixture with a layer of 3-4 cm. Let stand on the working table for about a minute, then add the second layer, turn on the vibrating table again for 40-60 seconds. After that, the tile must be dried without removing it from the mold for 24-48 hours at a temperature of at least 15 ° C.

If you want to get multi-colored paving slabs, you can add a special dye of the desired shade to the concrete mixture, and add a certain amount of glass or polypropylene fibers to ensure additional strength of the product. However, do not overdo it, otherwise the tile may be slippery.

When paving slabs are needed, they buy them or make them with their own hands. For independent work requires special equipment vibrating table. It can be purchased in an open trading network or ordered in an online store. But if the construction budget is limited or a lot of tiles are needed for the improvement of the territory, then it is easier and more profitable to make a vibrating table with your own hands. Manufacturing instructions and assembly drawings will help you quickly master the technology.

Homemade vibrating table has a variety of purposes:

tamping of cement or asphalt mixtures;
production of paving slabs, window sills, monuments, eurofences;
production of cellular building blocks;
carrying out test work.

The scheme of the device looks simple: a smooth steel table, fixed by a movable joint on the frame, and an electric motor with an eccentric on the shaft, which creates oscillatory movements. The vibration frequency reaches 3000 per minute.

According to the technology, tile molds (steel or polymer) are filled with mortar and placed on the work surface. Then turn on the unit for a certain time. Under the influence of vibrations, concrete gradually sags, compacts and gets rid of air bubbles. At the end of the cycle, the engine is turned off, the molds are removed and sent to dry. The result is durable and load-resistant tiles of large and small sizes.

An electric vibrating table is the best choice for home use. Its productivity reaches 50 m2 per day. The disadvantage of such equipment can be considered dependence on power sources. In addition, it has considerable dimensions, which complicates transportation. In the manufacture of large concrete castings, hydraulic vibrating tables are used, in which there is no spring device.

How to make a vibrating table for paving slabs yourself?

Before proceeding with manufacturing, it is advisable to find assembly drawings of a typical unit in the technical literature or on the Internet. On the diagram, you need to make marks of the motor attachment points, determine the dimensions of the table and components. The optimal height of the device is 0.8 m. The width and length are set based on the size of the injection molds.

To work, you will need the following tools and materials:

table drawing;
corner or channel profile;
metal pipes;
steel springs and "glasses" under them;
metal sheet for countertops;
vibration motor for 220 V (brands IV-98 or IV-99E);
grinder with discs for metal;
welding machine;
electric drill;
hardware for fixing the engine and fixing the vibrating table to the floor.

Step-by-step instruction

1. Installation of the base.

Weld a frame from equal sections of a pipe, profile or corner. Dimensions can be made arbitrary, but standard drawings usually indicate 700 × 700 mm.
Weld legs with plates to the frame, which are later fixed with anchors or concrete mortar. If the vibrating table is not fixed on the floor, then during operation it will randomly move. For stability, the structure can be additionally weighted with an axis of reinforcing bars, welded around the perimeter or crosswise.
On the reverse side of the frame in each corner and in the center, attach "glasses". They can be made from scraps of steel pipe with a height of 60-70 mm. The diameter should be 2-3 mm larger than the cross section of the spring. Install "glasses" exactly according to the scheme, without displacements and distortions. The efficiency of the vibrating table depends on this. If there were no “glasses”, then the springs are welded directly to the frame. In order not to look for new ones, you can use a used one. Springs from a car or moped work well, you just need to cut them in half.

2. Making a countertop.

Weld plates on top of the springs. Lay a monolithic sheet 8-10 mm thick on them. If the metal is too thin, then the working surface is quickly deformed. It can be strengthened by welding the transverse corners.
To the bottom of the table, weld sections of the channel with holes in the form of a frame. This is the base for the engine.
Along the perimeter of the tabletop, attach the sides of the steel corner 50 × 50 mm.

3. Assembling the vibrating table.

Mount the vibration motor on the channel frame motionlessly.
Connect the table to the support post by welding it to the plates on the springs.
Fix the finished vibrating table on the floor with anchors or concrete pouring.
Start the engine and check the operation of the unit by placing a mold with a tile mortar. If necessary, make adjustments to the stiffness of the springs and the overall stability of the vibrating table.

The most difficult thing in the assembly scheme of the vibrating table is the correct choice of the electric motor. When it is planned to make small volumes of paving slabs, it is enough to buy a single-phase engine with a voltage of 220 V with a power of up to 700 watts. For frequent use of the table, you will need a medium power motor (1.2-1.5 kW), equipped with an automatic shutdown system in case of overloads or power failures.

According to the instructions, the engine must be unbalanced. This creates a vertical vibration that is transmitted to the table and molds. If the desired brand is not available or it is not affordable, then you can use the motor from the old washing machine. This is a good replacement option for a vibrating table, although short-lived. At high rates of tile production, old motors quickly fail. After 30-35 cycles, the bearings wear out in them or the axle is disconnected.

The motor can be mounted in different ways:

in a horizontal plane - a vertical vibration is obtained;
along the vertical axis - this is how horizontal vibrations are provided;
at an angle of 45° to the tabletop - vibration forms forms in all planes.

The uneven oscillation of the table with a large amplitude leads to the “boiling” of concrete and its supersaturation with air. As a result, the tiles are of poor quality with voids inside. They have poor resistance to mechanical stress and crack quickly. Selection of the optimal amplitude of table vibration (a combination of speed and uniformity of movement) is carried out using an eccentric. A metal washer is put on the motor shaft and a threaded hole is made on the side. The amplitude is adjusted by screwing in / unscrewing the bolt, which is then fixed with a control nut.

If the vibrating table for the manufacture of paving slabs is supposed to be operated in different modes, then you need to take care of installing an AC potentiometer. With it, you can change the voltage level and adjust the strength of the oscillations depending on the composition of the solution.

Before starting the table, check the horizontal orientation of the work surface. If there are even slight deviations from the axis, then during the vibrations the tile mold will move on the table, and the solution will splash out of it.

When making the legs of the vibrating table, you should pay attention to some nuances:

the engine must not touch the floor;
the height of the legs must be chosen so that the master is comfortable servicing the installation and does not have to bend over;
All legs must be exactly the same size.

Steel springs can be replaced with loops, which are easy to make yourself from a strong tourniquet or rope. Such connections, located in the corners of the base, allow the tabletop to be well centered. The dimensions of the vibrating surface are determined based on production volumes. The wider the table and the more powerful the motor, the more tiles can be made.

One of the possible solutions to this issue is the manufacture of paving slabs with your own hands, which requires not only building materials and concrete mix, but also a vibrating table.

What is it for? The use of vibration equipment makes it possible to achieve high quality paving stones by increasing the level of concrete compaction in the molds. In addition, such a mechanism significantly saves your time spent on the manufacture of products. The surface of the vibrating table can be used not only for the formation of paving stones, but also for the manufacture of curb stones, posts and other products from cement and gypsum mixtures.

Homemade vibrating table.

Principal design

Vibrating table for paving slabs is a mechanical device consisting of:

rigid fixed support frame;
vibration mobile platform;
compensation springs;
vibration motor or conventional motor with vibration mechanism.

The direction of vibration of the table surface can be horizontal, vertical or in several directions. Structurally, such vibrating tables differ only in the location of the vibrating rotor. To create horizontal vibrations, it is installed vertically, and to obtain vertical vibrations - horizontally. Multidirectional vibration will be obtained by installing the rotor at an angle to the surface. Vibrating table drawing:

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The scheme of the bed.

Vibrating table drawing.

The support frame is placed on the surface, and steel springs are fixed at the upper points of its support legs, on which the vibration platform is placed. Vibrations are transmitted to the surface of the vibrating table platform due to the operation of a vibration motor or a driven mechanical vibrator.

Required materials and tools

For self-production of the forming vibrating table, you will need the following materials:

metal sheet with a thickness of 4-6 mm for the manufacture of a vibration platform;
corner 25x25 or 32x32 for the device of the side;
steel pipe with a diameter of 45-57 mm for the support legs;
shaped pipes or corners for jumpers connecting the legs;
welding electrodes;
steel springs with a diameter of 45-52 mm and a length of 150-200 mm - for example, from moped shock absorbers;
channel for placing the engine on it;
vibration or conventional electric motor with a vibration mechanism;
cable and starting equipment for connecting the electric motor;
primer and paint for corrosion protection.

If there is not enough money to buy a steel sheet, you can make a vibrating table for paving slabs from plywood, but the strength and durability of such a machine will be much less.

From a tool to make a vibrating table with your own hands at home, you will need:

angle grinder (grinder);
electric welding machine;
drill with drills for metal;
paintbrush, brush, sandpaper.

Manufacturing of structural elements

Base.

The basis of the vibrating table, which bears the weight load from all other elements and the tiles produced, is a steel support frame. Four legs for it can be made from shaped or round pipes, connecting them together with metal jumpers by welding. Recommended leg diameter: 45-57 mm or profile section 45x45 mm.

The height of the frame should be within 700-800 mm, then the working height of the vibrating table for paving slabs will be at the level of about 950 mm, which will allow you to quickly and conveniently place the forms, and then remove them. Under the support legs, it is necessary to weld metal plates for better stability of the structure. If the machine is installed permanently, with concreting of supports, then thrust bearings are not required in this case.

Springs and grooves for them.

In the upper part of the frame of the vibrating table, metal cups must be welded to place compensation springs in them. The diameter of the cups is determined depending on the diameter of the installed springs. They should freely enter inside, but also not hang out if there are too free gaps. After manufacturing, the frame is recommended to be cleaned of welding scale, rust, dirt, and then primed and painted.

Production and installation of a vibrating platform

The recommended size of a vibrating countertop is 600x600 mm, but it all depends on how many tiles you plan to make in one go. If necessary, one of the sides can be increased to a meter. The platform itself is recommended to be made of steel sheet 4-6 mm thick. The metal sheet may be 2.5-3 mm thick, but in this case it must be reinforced from the underside.

Universal vibrating table platform.

Corners measuring 25x25 or 32x32 mm must be welded along the perimeter of the sheet to create an enclosing frame that will not allow the filled forms to fall off the surface of the vibrating machine during operation. On the reverse side, opposite the legs, it is necessary to weld steel cups. Vibration springs will also be inserted into them to keep the tabletop stable on the support frame.

The vibration platform, like the entire vibrating table, is recommended to be painted.

Photo of fixing the base with a tabletop.

Motor selection

To create a sufficient level of vibration, you can use a pre-balanced motor with a power of 0.4-1.5 kW. To unbalance it, a pulley is put on the motor shaft, on one side of which the M12-16 bolt is screwed radially. The vibration level can be changed by turning the bolt outward or screwing the bolt into the pulley.

The disadvantage in this case is the rather rapid wear of the bearings, which are not designed for such vibration loads.

To obtain a similar result, the imbalance can be achieved in a simpler way, but without the possibility of adjusting it. To do this, it will be enough to cut off part of the pulley on one side or weld a couple of nuts to it.

More reliable drives mounted on a vibrating table include special vibration motors of the IV series manufactured by the Yaroslavl plant. Among the most suitable motors should be noted:

IV-104, with a power of 0.53 kW and with a vibration frequency of 1500 rpm;
IV-99, with a power of 0.5 kW, with a frequency of 3000 rpm;
IV-98, with a power of 0.9 kW, with a frequency of 3000 rpm.

The design of these motors includes unbalancing devices mounted on the rotor and more reliable bearings that can withstand prolonged vibration exposure.

The cheapest drive for a vibrating table can be made from an old engine from the squeeze drum of a washing machine by installing an eccentric on it.

To install the motor, a channel with holes drilled along the motor legs is welded in the center from the bottom side of the vibrating plate. For the need to create vertical vibrations, the channel is fixed horizontally. For vibration in the horizontal direction, the channel must be welded in a vertical position. When placing the electric motor, it is necessary to completely exclude the possibility of moisture getting on it from the surface of the forming vibration platform.

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Direct fastening.

Direct engine mount.

Belt drive connection.

A more complex design involves the installation of a conventional electric motor on a supporting support frame. A vibration mechanism is installed on the bottom side of the molding platform and connected to the engine using pulleys and a V-belt drive. The vibrator can be factory-made or made by hand. The installed engine must not touch the surface of the earth and be reliably protected from moisture.

The issue of designing tracks on the site sooner or later confronts all site owners. The option of using paving slabs for this purpose is one of the simplest, most reliable and beautiful. Therefore, for self-production and installation, you will need instructions on how to make a vibrating table for paving slabs with your own hands. This article will consider all the nuances of assembling the device, as well as the recommendations of experts on the manufacture of the frame and the choice of engine.

A vibrating table, or as it is also called, a vibropress, is a special device designed for the manufacture of paving slabs. The main advantage of this device is the ability of its working surface to make oscillatory movements. In addition, the vibrating table can be used for other purposes, such as making monuments, concrete fence sections, etc.

As for the independent manufacture of a vibrating table, this is most often resorted to when they want to independently engage in the manufacture of paving slabs to decorate their own yard. Although in some cases this method is used to organize your own small business.

Of course, using a vibrating table, it’s definitely not possible to engage in production on an industrial scale, but considering that it can be made from improvised materials, and with its main functions - eliminating air bubbles and compacting the composition of forms, such a device will do just fine.

Let's consider in more detail what is needed in order to make a home-made vibrating table, as well as step-by-step instructions for its manufacture.

Types of equipment for the production of paving slabs

Vibrating tables are different, and before proceeding to manufacture, it is necessary to decide on the appropriate option and its features. So, depending on the direction of vibration, the following types of devices are distinguished:

Models with horizontal vibration.
Models with vertical vibration.

These types of devices are divided depending on how exactly the rotor is located in them. In this case, the first option (a table with horizontal vibration) is more popular.

Depending on the installation method, vibrating tables can also be divided into two types: stationary and portable (mobile). But depending on the specialization of the devices, there are those that are designed to form products, as well as those that are designed to extract the finished product from the mold using vibration.

Externally, molding and molding tables are practically no different, with the exception of a special nozzle with holes, on which the mold is installed, from which it is required to remove the finished product.

If you want to make your own machine for the production of paving slabs, it will be enough to make a vibrating table with horizontal vibration. At the same time, there are two ways to remove the tile: manually (usually flexible forms are used in a home workshop) or by installing a molding nozzle.

Paving slab manufacturing technology: the principle of operation of the machine

In order to understand how to properly make a particular device, you need to understand the manufacturing technology of those elements for which it is designed. Therefore, we will consider the principle of operation of the vibrating table and what each of its constituent parts is intended for.

The working surface of the table is attached to the bed using a special system of springs, in the case of a horizontal vibration device, or with the help of suspensions, in the case of vertical devices. Due to the operation of an electric motor of rated power, on the shaft of which there is an eccentric, the tabletop is set in motion. Due to the fact that the eccentric is displaced, the center of gravity changes, resulting in the desired vibration.

How to make a vibrating table with your own hands: drawings and description

It is quite possible to get a general idea of \u200b\u200bthe device of the vibrating table by reading the sketch. But for the independent manufacture of such a design, a full-fledged drawing will be required, which will allow you to take into account all the nuances and indicate in advance the necessary dimensions of each of the elements.

Before starting to create a drawing, it is worth considering the two most popular options: for beginners and for masters. In the first case, the vibropress has a simpler design, but at the same time it allows you to perform the main task - to form products. Assembly, maintenance and care of such a device are quite simple and quite within the power of even a novice master.

Helpful advice! Over time, additional features can be added to such a simple design, such as a sand sifter. The main thing is to correctly carry out all the necessary calculations so that the addition of new functions does not cause the main elements to fail.

More complex designs designed for craftsmen initially combine a vibropress and a sand sifter. In assembly, this design is more complicated, however, it is convenient in that it facilitates the process of obtaining the components of the desired fraction.

Step-by-step instructions for making a vibrating table with horizontal vibration

The first thing you should pay attention to before starting work is the size of the countertop. It is believed that the minimum surface size should be 600x600, since with narrower sides, the forms will fall in the process of movement. In addition, a narrow design will have less stability.

Helpful advice! If, in the process of making paving slabs at home, the forms still fall off, you can try to reduce their number. This will negatively affect the performance of the device, but in this case, the number of tiles damaged due to falling will be reduced.

In many ways, the size of the vibrating table is determined by the required production volume. We can say that there is a direct relationship here - the more elements must be made at a time, the larger the countertop area should be. Naturally, a large vibropress will require a more powerful engine, and the materials from which the structure will be assembled must be very durable.

As for the height of the vibrating table, everything here depends on the individual data of the person who has to work on it. The standard height, optimally suited for a person of average height, is considered to be 90-100 cm.

Important! When deciding on the height of the table, it is worth taking into account the installation method that will be used. So, for example, if a stationary device needs to be dug into the ground and cemented, then this must be taken into account in advance in the length of the table legs.

Materials and tools needed to assemble a vibrating table: prices and specifications

In order to independently assemble the structure, you will need a grinder, a welding machine, a drill, as well as the ability to handle them. Consider a list of necessary materials that can be found among the handy materials.

For the countertop, you can use plywood or a sheet of metal of a suitable size. In this case, the plywood sheet should be 14 mm thick. This will allow you to transmit more vibration due to the small thickness, but at the same time provide the necessary structural strength. In addition, this way you can significantly reduce the noise level during operation of the device. If a metal sheet is used, then its thickness should be in the range of 5-10 mm.

The cost of a sheet of plywood of the required thickness, made from birch veneer, will be about 650 rubles with a standard size of 1525 × 1525 mm. But a sheet of hot-rolled metal 5 mm thick will cost more, about 1000 rubles.

Helpful advice! If a thinner metal sheet is available, it can also be used by reinforcing the structure with metal corners or pipes welded in the center of the sheet and around the perimeter.

Metal corners 50×50 mm in size. They will be required to create the edging of the tabletop and during the operation of the vibrating table will not allow the molds for the production of paving slabs to move from the surface as a result of vibration. Their cost will be about 140 rubles per 1 r.m.

Channel for mounting the motor (about 210 rubles / m.p.). It will need to be welded in the center of the back of the tabletop, pre-drilled holes that will be used for the bolts holding the motor.

Metal pipes for table legs. Typically, elements 2 mm thick and 40 × 40 in size are used for this purpose. The price will be 107 rubles per 1 r.m.

Pipes for forming the upper and lower parts of the frame. Since the main load will fall on these elements, it is worth choosing a fairly durable material - 40 × 20 and 2 mm thick for the upper part and at least 20 × 20 of the same thickness for the bottom. The cost will be 84 rubles/m.p. and 53 rubles / m.p. respectively.

Metal plates to be used as soles for supporting feet. For this, pieces of metal with a size of at least 50 × 50 and a thickness of 2 mm are suitable.

Related article:

Materials for manufacturing and their features. Do-it-yourself production of concrete for tiles. General advice.

You will also need a plate for installing electrical equipment and springs, which are designed to provide vibration. It is quite possible to purchase these items at auto-dismantling. Numerous reviews indicate that the ideal option is to use springs from mopeds, the cost of which, with a height of 113 mm and a diameter of 54 mm, will be about 500 rubles. They are installed in the corners of the table, and with a large surface area, another one is additionally mounted in the center.

Important! If an additional spring has been installed in the center of the table top, then the motor mounting location and support configuration will be changed.

Additional aspects to consider when choosing materials for a vibrating table

In addition to the above materials, you should carefully select other components, which, although not visible, largely determine the quality of the device:

bolts for fixing the springs. This element acts as a glass for the spring, so it must have the proper strength. Sometimes for this purpose, pipe blanks 50-70 mm long are used. At the same time, it is important that their diameter exceeds the diameter of the spring by 5-10 mm;
bolts and washers (usually 4 pieces) that will be required to fix the engine;
electrical cable, which must have a sufficient cross section. It is also worth considering the presence of an outlet and a circuit breaker in the immediate vicinity.

Important! If the diameter of the homemade glass will significantly exceed the diameter of the spring itself, this will lead to the fact that the vibration will be uneven. As a result, the spring wears out quickly, and the movement of the table can be called rocking rather than vibration.

Production of paving slabs at home: how to choose an electric motor

Consider the two most popular options: their cost and characteristics:

IV-99 E with a power of 0.5 kW. Its weight is 14.5 kg, the speed is 3000 rpm, the driving force is up to 5 kN. The device is powered by a 220 V network. You can buy it at a price of 7650 rubles.
IV-98 E is a more powerful model (0.9 kW), which has a greater weight - 22.5 kg and a driving force of up to 11 kN. In this case, the rotational speed is also 3000 rpm. But the main difference between this model and the previous one is the presence of unbalances on the rotor, which rotate together with the rotor shaft. A regular 220 V network can also be used for power. The cost of this model is 8540 rubles.

For the production of a small amount of tiles, this will be more than enough, but if you want to organize a small paving slab factory in your workshop, then it is better to pay attention to the IV-104 B model with a power of 0.53 kW. To power it, a 380 V network is required, but this will make it possible to achieve a driving force of 6.3 kN.

But there are cases when it comes to making a very small amount of paving slabs for paths to the country house, and it is simply unjustified to purchase a motor for this purpose. In this case, craftsmen use the engine from an old washing machine or a pumping station as a basis. In this case, you will have to spend much less money, paying only the turner for some alterations, if necessary.

The only significant drawback of this solution is the fragility of old engines. They are extremely rarely able to withstand more than three dozen work cycles. After that, the axle becomes loose or the bearing completely jams. Therefore, if you plan to manufacture a large number of tiles, it is better to purchase a more durable engine in advance that can last the required period of time.

Important! The main task of the engine is to ensure uniform vibration of the surface, because otherwise, the solution may boil in the container, which will not lead to compaction, but, on the contrary, to increased fragility of the products.

Even taking into account the need to purchase all the necessary elements, making such a design with your own hands is much cheaper than buying a vibrating table for paving slabs.

Do-it-yourself vibrating table for paving slabs: construction assembly rules

After all the necessary materials have been acquired, it remains only to assemble the structure together. But in order for the resulting device to serve properly for many years, it is necessary to adhere to the following rules:

All metal elements must be opened with an anti-corrosion compound before assembly. This will provide them with reliable protection against rust. The primer GF-021 Lakra is perfect for this purpose, the cost of which is only 125 rubles / kg, or enamel paint. At the same time, if you have to deal with elements that have already undergone corrosive processes, you will have to purchase a more expensive material, for example, EP-0180 primer, costing 188 rubles / kg.
To fasten the components of the vibrating table, it is imperative to use a welded seam. Bolts are not used for this purpose because over time, as a result of vibration, they can loosen, which will lead to a decrease in the rigidity of the support. This solution is allowed only for collapsible structures, but in this case it is necessary to regularly tighten the bolts.
It is very important that the motor that produces the vibration never come into contact with the ground. This is not allowed by the technology for the production of paving slabs, and therefore, before proceeding with the manufacture of the first batch, the device must be tested by running and checking the amplitude of oscillations and the stiffness of the springs.
All legs of the support must have the same length. However, in order for the table to be convenient to use, you also need to take care that the surface on which it will be installed is even. This will avoid distortions and make the process of making paving slabs for summer cottages as efficient as possible. It is reasonable to think over the fastening of the table to the surface. This can be done using suitable anchors or concrete mortar.

Helpful advice! In some cases, the ideal location of the engine can only be determined empirically. If something does not suit you in the work of the vibropress, you can experiment a little to achieve the desired effect and ease of use.

Methods for unbalancing the vibrating table motor

Depending on where exactly the engine is installed, it is necessary to unbalance the belt drive unit on the tabletop or the pulley. You can do this in several ways:

put a round pulley on the shaft, in which a section of the circle is drilled or ground off;
experimentally select a nut that is suitable in size and weight, and weld it onto the pulley;
put the coupling on the shaft, after having welded on its end a bolt with two nuts placed across. Due to the fact that the nuts can be moved along the thread, imbalance is carried out.

As you can see, the independent production of paving slabs for a summer residence is quite a feasible task if you spend time and effort studying the issue and assembling the necessary device. Although it should be noted that with the help of such a vibrating table it is possible to organize, for example, a small production of polymer-sand paving slabs.

In order to mechanize this process and facilitate the work, it is possible to manufacture a mechanical device with an electric drive. Such a mechanism will be especially relevant if it is necessary to prepare a large amount of building mixtures from bulk materials.

Such a device is called a vibrating sieve or a vibrating screen. It has a fairly simple design, and therefore it is not difficult to make a vibrating sieve with your own hands.

General design device

Making a vibrating screen for sand or gravel does not require a lot of time. The design description of the vibrating sieve provides for the following elements:

supporting frame, on which all other parts and assemblies are located and fixed;
electric drive, which can be used as a power saw, jigsaw or drill;
an outer box (frame) without a bottom, mounted on fixed furniture rollers;
guide rails from a metal corner for moving rollers along them;
nestable box with a metal mesh bottom;
a chute for transporting the sieved material to the collection hopper;
device for adjusting the speed of rotation of the electric motor.

The transport chute is easiest to make from plywood, but metal construction is much more reliable, especially when screening gravel or other coarse materials.

A device for adjusting the speed of rotation may already be provided in the design of an electric drill or jigsaw. In this case, a separate external controller is not needed.

The principle of operation of a vibrating sieve for bulk materials is to transfer translational movements from a power tool to a frame with a fixed sieve. After sieving the materials, the inner wooden frame with the sieve is raised and the unnecessary screenings are discarded.

Necessary materials

For the manufacture of a frame, two boxes and other elements of the mechanism, you will need:

wooden bars 60x70 mm;
plywood 20 mm thick;
6 rubber or spring shock absorbers;
4 or 6 furniture rollers with mounting frame;
piano loop with a length of at least 500 mm;
metal corners for guide rails;
metal plates or strip to strengthen the wooden parts of the structure;
screws, bolts and nuts.

Particular attention should be paid to the strength of the piano loop, since when screenings are discarded, significant mechanical loads will fall on it.

Dimensions of the main structural elements

Before assembling the sand shaker, it is recommended to draw an assembly diagram or a simple assembly drawing. This will simplify assembly work and help determine the order in which they are performed.

length 1400 mm;
width 600 mm;
height 850 mm.

The length of the outer drawer without bottom should be equal to half the length of the supporting frame. The width is 100 mm less than the width of the base, the depth is at least 120 mm.

The dimensions of the inner box with a bottom made of mesh should ensure that it can be easily removed from the inner frame for free tipping and release from accumulated screenings. The outer and inner drawer are connected on the short side with a piano hinge, as a result of which there is the possibility of lifting and overturning the inner structure.

Assembly order

The manufacture of the vibrating sieve begins with the assembly of the supporting frame from wooden blocks in accordance with the drawing. To increase the strength of the structure, the connection of wooden parts is recommended to be made with reinforcement with metal corners and plates.

After that, on the inside of the base frame, it is necessary to fix the guide rails as a support for the movement of the furniture castors. The guide corners are fastened together in a single structure with the help of transversely mounted wooden bars. To reduce the level of vibration during operation, 6 or 8 rubber shock absorbers must be installed between the corners and the guides.

To fix the drive for a vibrating screen from an electric drill, jigsaw or saw, on one side of the upper part of the support frame, it is necessary to provide for a platform corresponding to the size of the power tool.

After assembling the support frame, a plywood gutter is made and installed. The processed material will flow through it into a collection container. It is more difficult to make a metal gutter, but it will provide a longer service life.

At the next stage, a screening structure is assembled from two boxes, one of which with a sieve is nested in the second.

On one short side, the boxes are fastened together with a piano loop.

From the bottom of the outer box without a bottom (frame), furniture rollers are fixed, which ensure the ease of movement of the boxes along the rails on the bearing support.

The mesh size of the metal mesh is determined by the fraction of the bulk material to be screened. Fastening the mesh to the frame is best done with metal tape and self-tapping screws.

The working body of the power tool is connected to the external movable box using a spring connection, which will provide smoother vibrations during the operation of the mechanism. The translational movements from the electric drive are transmitted to the boxes, and as a result of their oscillations along the guides, the material poured into the inner box with the net is sieved.

The electrical power consumption of the mechanism depends on the power of the installed power tool. At the same time, it should be noted that the more powerful the saw, the larger the dimensions of the vibrating sieve can be made and, due to this, large volumes can be processed.

If you use an eccentric, then you can use an electric drill as a power unit. In this case, the tool is installed sideways to the boxes and the drive mechanism will oscillate.

Oscillation speed control unit

Power tool manufacturers produce models with or without adjustable motor speed. In the second case, the vibrations of the electric saw may be too frequent, and an additional external device for adjustment will be required.

A rheostat type regulator can be purchased from electrical supply stores. At the same time, it is recommended to buy a circuit breaker, which will provide additional protection for the tool and its long-term operation.

As a result, you will be able to provide any necessary vibration frequency of the working boxes of the vibrating screen, depending on their load and the weight of the material being processed, without overloading the electric drive.

Protecting the drive from dust

During operation, especially with materials such as cement and dry glue, dust is generated that enters the actuator. Therefore, it is recommended to cover the installed electric motor with a protective casing, the design of which should not block the ventilation openings of the tool. Such a casing can be made from a 2-liter plastic bottle.

The finished assembled vibrating screen and its operation can be seen in the video below.