SU1684076A1 - Mould for device for obtaining electroflocculated volumetric products on vacuum moulding devices - Google Patents

Abstract

The invention relates to devices for producing bulk products with a nap applied in an electric field, and can be used in the textile and light industry. The aim of the invention is to improve the uniformity of the coating on the outer side surfaces while reducing the consumption of raw materials. The form to the device for producing electroflocked bulk products additionally on the outer side surfaces contains movable perforated plates, the number of which is equal to the number of outer upper edges of the form, with the axis of rotation of each plate located on its edge and coinciding with the outer upper edge of the form, while the plates have a lock positions, and the remaining ribs of the plate are connected to the bottom of the form by an airtight elastic partition and along their perimeter a cutting torch is installed, made in the form of a heater about the item. 1 hp f-ly, 3 ill. cl

Description

The invention relates to the textile industry, in particular, to devices for producing bulk products with a nap applied in an electric field.

The purpose of the invention is to improve the quality of the pile cover of the product by increasing the uniformity of its stretching.

FIG. 1 shows the proposed form, section; in fig. 2 - the same general view; Fig. 3 is a schematic of the device for producing electroflocked bulk items.

The form 1 with holes 2 additionally contains movable perforated plates 3. A spring 4 connecting the form 1 and plates 3 and ensuring the fixed positions of the perforated plates 3, the fastening 5 of the spring 4. The clamp 6 and the clamp head 7 necessary for

fixing the lower position of the plate 3, and a hermetic elastic partition 8 connecting the edge of the plate 3 and the bottom of the form 1.

FIG. Figure 2 shows a cutter 9 for cutting a thermoplastic electroflocking material and mounted along the outer perimeter of the perforated plates 3 in the upper position.

FIG. 3 shows a device for producing electroflocked bulk products, where the form 1 is installed in the housing 10 of the vacuum space 11. The frame 12 is designed to fasten thermoplastic electroflocking material 13. The heating device 14 is installed above the material 13. Cord 15

about

00

 about

4 o

serves to maintain the volume of the vacuum space under the plates 3; the Cutter 9 is designed as a heating element 16. The vacuum pump 17 is connected via a vacuum receiver 18 with a vacuum space 11.

The device works as follows.

The thermoflocked thermoplastic sheet 13 is hermetically pressed by the frame 12 to the housing 10 of the vacuum space 11 (Fig. 3). The heating device 14 is used to heat the sheet 12, then vacuum is created under the sheet using a vacuum pump 17. Air is pumped out through the holes 2, and At atmospheric pressure, material 13 is pressed against form 1 and plates 3. Inside form 1, material is stretched along its inner surface.

Outside the mold 1, the material together with the plate 3 is lowered to a cutter made in the form of a heating element 16, which cuts the material around the perimeter of the perforated plates 3. Next, the plate 3 together with the material 13 under the action of atmospheric pressure takes the position determined by the locking elements 6 and 7. Cutting the material by the cutter 16 allows the material to be stretched to its bend, and the elastic partition 8 retains the necessary sealing after cutting the material 13 by the cutter 16, to maintain the vacuum The space under the plates 3 is an elastic partition 8 which is retracted by a cord 15.

If the cutter 16 is set at a height of more than 4/5 of the mold height, it is possible for the cutting edge of the material 13 to touch the vacuum pump 17 due to the material bending when it is heated, which leads to seal failure and, as a result, to the mold inoperability.

When the cutting edge of the cutter 16 is located below 2/3 of the height of the mold 1, the material is pulled out and, as a result, the uniformity of the coating decreases.

Thus, the proposed technical solution allows to obtain electroflocked volumetric products with an improved appearance due to an increased uniformity of stretching on them while reducing the consumption of raw materials. The reduction in raw material consumption is due to the elimination of the need to increase the density of the pile cover on

fabric prior to thermoforming, associated with stretching and, consequently, a decrease in density and a deterioration in the appearance of the product.

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Claims (2)

Invention Formula 1, A mold to a device for producing electroflocked volumetric products on vacuum forming devices, a housing body with ribs formed by the lateral surfaces of the housing, holes in the housing and a vacuum system, so that to improve the quality of the pile cover for by increasing the uniformity of its extension, movable perforated plates are mounted on the periphery of the body in its upper part, the axis of rotation of which coincides with the outer edge of the rib, below the plates have their clamps installed, and along the perimeter of the plates the cutter is installed vertically, the cutting edge of which is below the axis of rotation of the movable plates, and on the outer side of the plates there is an elastic casing forming a closed cavity with the housing. 2. The form according to claim 1, characterized in that the edge of the cutter is made in the form heating element. L J FIG. 3