RU176280U1 - Device for the manufacture of suspended ceilings - Google Patents

Abstract

The present utility model relates to construction, namely to the manufacture of suspended ceilings. The technical result consists in the manufacture of stretch ceilings from materials based on PVC with a one-time reduction in power consumption during such manufacture, increasing the portability of the device.

A device for the manufacture of suspended ceilings, preferably made of a material based on polyvinyl chloride (PVC), comprises a bed, a first bar fixed to the bed, a second bar fixed to the bed opposite to the first bar using at least one rotatable holder, and at least one of the named strips is L-shaped in cross section, one of the named strips is coated with a layer of electrical insulation coating, over which a heating element with a non-stick coating applied to it, and and an opposite bar coated with a flexible elastic coating. 8 s.p. f-ly, 5 Fig.

Description

Technical field

The present utility model relates to construction, namely to the manufacture of suspended ceilings.

State of the art

Currently, for the manufacture of suspended ceilings, machines are widely used that provide joining of canvases made of materials based on polyvinyl chloride (PVC) by welding with high-frequency currents (high-frequency machines) [What are high-frequency machines for suspended ceilings / Access mode: http: // info- potolki.ru/tvch-stanki/]. When using such machines, it is possible to obtain a high-quality canvas with high performance characteristics. However, it is worth noting that this type of equipment is very expensive, energy-consuming, noisy and non-mobile. Also, HDTV machines have significant dimensions and weight, which makes it difficult to transport them to a construction site, and the principle of welding with high-frequency currents used in such machines can have a negative effect on the health of the operator due to increased electromagnetic radiation. Also, such machines often require the use of an operating voltage of an alternating electric current network of 380 V, which leads to high energy consumption. Maintenance of such a machine is also expensive: a high-frequency lamp has a resource that is limited to a certain number of hours, which leads to additional costs.

Also known in the prior art are solutions for soldering parts of a polymer film. For example, the technical solution according to US patent No. 3867226 (publ. 02/18/1975). According to the description, a portable manual pulsed sealing machine contains a pair of nichrome wire heating elements that solder parts of a plastic bag for a period of time predefined on the heat cycle regulator.

However, this technical solution and similar ones (for example, US4479844, US2017291396, US2017282479, etc.) are intended for use in the food industry and require significant improvements in order to be used for the manufacture of suspended ceilings.

The prior art utility model is known according to the patent of the Russian Federation No. 173426 "MACHINE FOR INSTALLING FASTENERS ON A CANVAS FOR A STRETCH CEILING" (publ. 08.28.2017). The known technical solution comprises a bed with side supports and a longitudinal beam between them, on the bed with the possibility of longitudinal movement mounted carriages made in the form of toroidal parts with a rectangular cross section, in the lower part of which there are mounting mechanisms for fasteners at the through gap, while the carriages are kinematically connected with movement mechanisms that are located on the bed, on which the rolls of the unwinding unit, on which the web roll is located, are also mounted on a longitudinal ball e installed support assembly pulling the web, in which supporting rolls are arranged broach assembly with the web drive, the top of which is mounted pressure roller.

However, the technical solution described above, firstly, is not intended for stitching films of film material together, and secondly, it involves installing rivets with a threaded connection around the perimeter of the fabric. The use of fasteners of this type allows to achieve the normal operational properties of a stretch ceiling made of materials based on polyvinyl chloride, but when using thermal effects to stitch the edges of the web and fasten together, it is possible to accelerate the manufacturing process of a stretch ceiling.

The prior art also knows the invention according to the patent of the Russian Federation No. 2273703 "METHOD FOR MANUFACTURING A STRETCH CEILING" (published on 04/10/2006). A well-known technical solution is as follows: two sections of the PVC film are folded with their faces to each other and fixed with a press to the table, a teflon tape is placed between the press and the film. Then a hot soldering knife is carried out along the press, welding two sections of the web. An expanded weld is fixed with a press to the table so that the center of the seam is in the middle of the solder knife, which is held along the press, processing the seam to obtain a thickening that ensures the strength of the joint.

However, the use of a soldering knife for soldering two sheets can lead to an uneven thermal effect on the edges of the PVC sheets, which, in turn, leads to either a non-uniform quality of the seam or to an increase in the number of defects due to possible burning through the sheet. Due to the initial uniform thermal effect on the joint, the procedure for thickening the joint may be redundant.

Utility Model Disclosure

Thus, based on the information characterizing the prior art, the technical problem consists in the need to expand the arsenal of technical means intended for the manufacture of stretch ceilings from materials based on polyvinyl chloride (PVC), reduce power consumption in comparison with such technical means, and ensure portability.

The technical result consists in the manufacture of stretch ceilings from PVC-based materials with a one-time reduction in power consumption during such manufacture, increasing the portability of the device.

The technical result is achieved due to the fact that the device for the manufacture of suspended ceilings contains a bed, a first bar mounted on the bed, a second bar mounted on the bed opposite to the first bar using at least one rotary holder, and according to the utility model, at least at least one of these strips is L-shaped in cross section, one of the said strips is coated with a layer of electrical insulation coating, over which a heating element is installed with a non-stick coating applied to it m coating, and on an opposite strap coated flexible resilient coating.

In a preferred embodiment, the heating element is a plate, thread or wire of a heat-resistant heat-conducting alloy.

Nichrome can be used as a heat-resistant heat-conducting alloy.

As a non-stick coating, a Teflon coating can be used.

As an elastic elastic coating, a rubber or silicone coating may be used.

As an insulating coating can be used textolite material.

As a material for the first and second planks, a material that is hard and resistant to deformation can be used.

In a particular embodiment, the heating element may be further provided with a heating timer.

In another particular embodiment, the heating element may be coupled to a pulse current transformer.

No technical solutions are known from the prior art that have all the essential features of a true utility model inherent; therefore, it can be assumed that the present utility model meets the patentability condition “Novelty”.

The implementation of this utility model is possible using known materials and products, therefore, it can be assumed that this utility model meets the patentability condition "Industrial applicability".

Brief Description of the Drawings:

in FIG. 1 is a schematic illustration of a device for the manufacture of suspended ceilings;

in FIG. 2 is a schematic illustration of a first bar that is L-shaped in cross section;

in FIG. 3 shows a schematic representation of both straps at the time of their combination, harpoon and canvas between them;

in FIG. 4a is a schematic view in which a harpoon is mounted on a bar;

in FIG. 4b is a schematic view in which a harpoon and a PVC film are mounted on a bar;

in FIG. 4c is a schematic illustration of a machine control unit;

in FIG. 4d is a schematic illustration of a device at the time of stitching a PVC film with a harpoon;

in FIG. 5 is a photograph of a fragment of a stretch ceiling obtained using the present utility model.

Utility Model Implementation

The present utility model is a device for the manufacture of suspended ceilings, preferably from PVC-based materials. Actually, the manufacturing process of suspended ceilings consists, firstly, in the connection of paintings of PVC-based material with each other. Such a connection is usually carried out by stitching the canvases along the edges by thermal action (exposure to high frequency currents) with the formation of a seam at the borders of the canvases. Secondly, the perimeter of the resulting composite web is connected to the fastening means, which may be harpoon type fasteners. Such fasteners are U-shaped in cross section, and they are also made from a material based on polyvinyl chloride. The harpoon is made of a denser material compared to the canvas, which is dictated by its functional purpose. The canvas, in turn, is produced in the form of a film. It should be noted that at the moment PVC is the most common polymer raw material for materials for the manufacture of suspended ceilings.

A device for the manufacture of suspended ceilings (Fig. 1) includes a frame 1, on which is fixed the first strip 2. The second strip 3 is fixed on the frame 1 opposite to the strip 2 using one or more rotary holders 4. The holder 4 can be made in the form of an inclined-rotary bracket, lever or any other movable mount, providing the location of the second strip opposite the first. When combining both strips between them there should be no gap.

In particular, if the first bar 2 performs the function of a positioner, then it is advisable to perform it L-shaped in cross section, as shown in FIG. 2. In this embodiment, the harpoon is "put on" on the strap 2 and in the process of stitching with the film does not slide off the strap 2.

The following layers are applied to the working surface of one of the strips, preferably an L-shaped strip 2 that acts as a positioner: an electrically insulating coating 5, which does not allow the strip material to melt; the first layer of non-stick coating 6; a heating element 7 in the form of a nichrome thread, plate or wire; the second layer of non-stick coating 6. Nichrome is preferred as the material for the heating element, due to its property it can be heated to a certain temperature under the influence of electric current, or another alloy having an equivalent property.

If the second bar 3 is a clamping bar, then its implementation of the L-shaped in section is permissible, but not necessary to achieve a technical result. Moreover, it is advisable to provide the clamping bar 3 with an elastic elastic coating 8, for example, silicone or rubber. Such a coating allows the clamping to be carried out uniformly if the materials used have an uneven surface (Fig. 3).

Also opposite the L-shaped bar, if it is a pressure bar, it is advisable to install a stop 9, which further prevents the harpoon from slipping from the bar (Fig. 4a).

The heating element 7 may be connected to the current source 10 using connecting wires or using a power cable. The current source 10 is connected to a heating timer 11. As a current source 10, a pulse current transformer can be used. The heating timer 11 is equipped with a heating controller having a graduated scale, with which you can change the period of heating time. On the front of the power supply housing (control unit), a power button 12 of the device and LED indicators can be located that signal the heating is on or off.

Also, the present device may be provided with two side supports 13 attached to the back of the frame 1, and a longitudinal beam 14 between the supports to increase the overall stability of the structure. In such an embodiment, the device may be further provided with a pedal 15 and a foot gear 16, which allows to lower the holder 4 or holders and, accordingly, the pressure bar 3 by pressing the foot on the pedal 15.

The present utility model is used as follows.

When stitching two sheets of PVC-based material, they are placed on the overlap positioner. Then lower the clamping bar 3 manually or by activating the foot gear 16 by pressing the pedal 15. When lowering the bar 3 at a predetermined angle, the current source connected to the heating element is triggered. The heating element 7, which may be a nichrome thread or plate or wire, is heated to a temperature at which the melting of the material based on PVC. Heating is carried out for a period of time previously set on the graduated scale of the heating timer 11. After this period of time, heating is completed. The heating time interval is determined experimentally in such a way as to exclude the burning of PVC-based material and at the same time ensure reliable crosslinking of the webs among themselves.

The stapling process of the harpoon with the perimeter of the canvas is illustrated in FIG. 4a-4d.

When stitching the harpoon 17 with the perimeter of the canvas, the harpoon is previously “put on” on the L-shaped bar 2 (Fig. 4a). Then, under the harpoon 17, the web 18 is inserted (Fig. 4b) and the heating time period is set using the graduated scale of the heating timer 11 (Fig. 4c). After that, the bar 3 is lowered manually or using the pedal 15 (Fig. 4d). For convenience, a reel with a harpoon can be installed on the surface of the bed 1.

In FIG. Figure 5 shows a photograph of the back of a fragment of a stretch ceiling obtained using this real utility model: a joining seam between the canvases and a unit for connecting the web with a harpoon.

It should be noted that the above options illustrate, but do not limit, the present utility model. So, all operations for the manufacture of a stretch ceiling is preferably carried out with a horizontal spatial arrangement of the claimed device. However, for a specialist in the field of technology it will be obvious that the technical result will also be achieved with a different spatial arrangement of the device: at different angles to the reference plane, including vertically.

Also, a real utility model can be used in various versions. For example, for some practical uses, the dimensions of structural elements can be reduced or, conversely, increased. So, with a decrease in size, but with the preservation of all the nodes of the device, their relative position and functional connections, you can get a manual device for the manufacture of suspended ceilings, placed in the palm of your hand.

Thus, the use of this utility model makes it possible to produce stretch ceilings that meet the required operational characteristics. Thanks to the used technique of soldering PVC-based materials, the device is energy efficient. At the same time, the structural elements used in the device make the present device compact and mobile, which allows it to be used both in the workshop and directly at the construction site.

Claims (9)

1. A device for the manufacture of suspended ceilings, comprising a bed, a first bar fixed to the bed, a second bar fixed to the bed opposite the first bar using at least one rotatable holder, characterized in that at least one of these the strips are L-shaped in cross section, one of the said strips is coated with a layer of electrical insulating coating, on top of which a heating element is installed with a non-stick coating applied to it, and on the opposite stripe is applied elastic elastic coating. 2. The device according to claim 1, characterized in that the heating element is a plate or thread, or a wire of heat-resistant heat-conducting alloy. 3. The device according to claim 2, characterized in that nichrome is used as a heat-resistant heat-conducting alloy. 4. The device according to claim 1, characterized in that the Teflon coating is used as a non-stick coating. 5. The device according to claim 1, characterized in that a rubber or silicone coating is used as an elastic elastic coating. 6. The device according to claim 1, characterized in that a textolite material is used as an electrical insulating coating. 7. The device according to claim 1, characterized in that the first and second plank are made of a material that is solid and resistant to deformation. 8. The device according to claim 1, characterized in that the heating element is equipped with a heating timer. 9. The device according to claim 1 or 8, characterized in that the heating element is connected to a pulse current transformer.

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