RU1828454C - Device for formation of articles from staple fibers - Google Patents

Abstract

SUMMARY OF THE INVENTION: a device includes a melting unit for plastic material, a feeder for forming a melt stream and the same additional feeder, a staple fiber forming unit, a fiber deposition chamber, a receiving conveyor, and a suction box. The device also comprises a unit for crushing the product into measured parts, hollow with a receiving funnel. The riser is mounted coaxially with an additional feeder for forming a stream of melt through the vertical fiberization chamber. The cavity of the riser is made with a tangential gap. The latter is located below the hopper in the cavity of the fiberization chamber. The counter is made with an air suction nozzle located outside the fiber deposition chamber, and the product crushing unit into measured parts is located at the end of the hollow column. 2 ill.

Description

FIELD OF THE INVENTION This invention relates to devices for forming backfill from melts of thermoplastic materials and can be used in the manufacture of building materials, in the light and chemical industries, in construction, shipbuilding, metallurgy, and other industries.

The aim of the invention is to expand the range of manufactured products.

In FIG. 1 shows the design of a device for forming staple fiber products; figure 2 is a fragment.

Said construction comprises a melting unit for thermoplastic material 1, a staple fiber forming unit 2, a device for forming a melt jet Z, a fiber deposition chamber 4, a neck of the fiber deposition chamber 5, a receiving conveyor 6 located in the bottom of the fiber deposition chamber, a suction box 7 mounted under the upper perforated tape receiving conveyor, table 8. made in the form of a hollow body, passing through the neck of the deposition chamber and exiting from it from the opposite side, tangential on the slot 9, the suction pipe 10, the crushing device of the product into measured parts 11.

The device operates as follows.

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A melt is prepared in the melting unit of thermoplastic material 1, from which staple fibers are obtained in the staple fiber forming unit 2, which, through the neck of the deposition chamber 5, enter the fiber deposition chamber 4. From the device for forming the melt jet 3, a thermoplastic melt stream is sent to the cavity 8 of the riser. which passes through this cavity through. Staple fibers come from the throat of the deposition chamber into the riser cavity along the tangential slit 9. They are forced to make 1-1.5 turns around the melt stream. Since the jet of thermoplastic material is hot, the staple fibers adhering to its outer surface are melted, and due to the continuous suction from the cavity of the drain through the suction nozzle of the air 10, the jet cools down, thereby forming a core provided with an outer fiber layer. This rod, by means of a device for crushing the product into measured parts 11, is divided and supplied for consumption. The remaining part of the staple fibers is fed to a receiving conveyor 6, where a layer of the canvas for consumption is formed with the help of a suction box 7.

The technology for producing such a bar is extremely simple. A stream of flying superthin staple fibers crosses the melt stream. When such fibers hit the surface of the jet, they fuse with the material of the jet, forming a fibrous layer on its surface. When the jet solidifies, the rod formed from it is provided with

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from the outside with a layer of fibrous material monolithically connected to the surface of the bar. This fibrous layer is an absorber of sound waves, i.e. the bar becomes soundproof. In addition, the bar is at the same time a thermal insulating material when filled with such rods, for example, between walls, hollow partitions of buildings, salons, cabins.

Claims (1)

The claims A device for forming staple fiber products, mainly backfill, comprising a thermoplastic material melting unit, a melt jet forming feeder, staple fiber forming unit, a fiber deposition chamber, a conveyor belt and a suction box, characterized in that, in order to expand the range of manufactured products, it equipped with an additional feeder for forming the melt jet, a crushing unit of the product into measured parts and a hollow column with a receiving funnel mounted coaxially with an additional feeder for forming a melt stream through the vertical fiberization chamber, wherein the cavity of the riser is made with a tangential gap located below the receiving funnel in the cavity of the fiberization chamber, an air suction pipe located outside the fiberization chamber, and the product crushing unit for measuring parts is located in lower part of the hollow stock. 1828454 pЈ / a1