SU1403104A1 - Extrusion head for applying polymer sheath over cable-like articles - Google Patents

Abstract

The invention relates to electrical engineering, in particular to equipment for the manufacture of cable products. The purpose of the invention is to improve the quality of products by the possibility of imposing additional layers and regulating the pressure of the extruded layers on the workpiece. In the conical annular channel 25, the flow is divided into component parts. Thus, at least two layers of the shell are superimposed. In the annular conical channel 21, formed by matrixes 20 and 6, an additional layer of the shell is formed. The remaining layers of the shell are formed in the conical annular channel 9 and the channel between the matrix 10 and the matrix 13. 3 sludge. .

Description

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The invention relates to equipment for the manufacture of cable products and can be used to impose multilayer polymeric shells.

The purpose of the invention is to increase the quality, the cross-sectional area of which is equal to half the cross-sectional area of the extruder inlet, enters distributor 23. In the conical annular channel 25 formed by the mandrel products by imposing 5 with matrix 24 and distributor 23, the layers are - olith stream splitting into components

laziness of extruded layers on preform. Thus, it does not overlap.

FIG. Figure 1 shows the extrusion go-shell. Rest

agile, general view; in fig. 2 - sweep the flow of extruded material

the surfaces of the distributor for feeding U through the through hole 17 enter the coated material; in FIG. 3 - complex shapes of the distributor 18.

In the annular conical channel 21, obra25

Dornomatrix is complete.

The extrusion head consists of a housing 1 with flanges for connection to extruders. The housing has channels 2 and 3 for the passage of the material being extruded. Inside the casing there is a distributor 4 with channels of complex shape for changing the direction of movement and equalizing the pressure of the flow of the material being extruded, fixed by pressure nut 20, distribution along the ring in the conical ring 5.facial channel 9 formed by the curvature distributor 6 and fixed by matrix 6 A taper 6 is formed. On the side of the conical part of the distributor, the matrix-holder 7 is fixed in the housing with the help of a clamping nut 8. An annular ring is formed between the distributor 4 and the matrix holder 7. anal 9. dornomatritsa the die set 10 as a cone with a flange 11 in which holes 12 are made of cylindrical shape. The matrix 10 and the matrix 13 form an annular channel 14 between them and have axial movement by means of an adjusting nut 15. The matrix holder by means of adjusting bolts 16 has the possibility of radial movement.

The distributor 4 on the side of the channel 3 has a through hole 17. Inside the distributor 4 there is a distributor 18 secured with a clamping nut 19. In the distributor 18 a matrix of materials feeding from extruders is fixed, the distributor 20, which with distributor 4 and the distributor for laying layers of shells ,

matrix 6 forms a circular conical channel 21.

The distributor 18, at the site of the forming channels, has a through hole 22, the cross-sectional area of which is equal to 45 half of the cross-sectional area by the input matrix 20 and the matrix 6 of the distributor 4, forms an additional layer of the product shell.

The extruded material supplied under pressure by another extruder moves along channel 2 of housing 1, fed into channel-1) distributor 4, in which the direction of its movement changes. Going on

shell products.

Part of the flow of extruded material under pressure through the through holes 12 of the cylindrical shape of the matrix 10, enters the conical annular gap formed by the matrix 10 and the matrix 13, where an additional shell of the product is formed.

The pressure and concentricity of the applied layers of the shell are regulated by the matrix holder 7 by means of bolts. Thus, it is possible to simultaneously superimpose two additional layers of the shells and to adjust the concentration of each layer of the shell.

Claims (1)

The invention The extrusion head for imposing polymeric shells on cable products, comprising a housing with channels for extruder opening. Inside the distributor 18 there is a distributor 23, in which a matrix 24, obsnabzhennye dorn and dornomatritsami, the cavity for passage of the workpiece, the matrix and fastening and adjusting elements, in order to improve the quality of products by the possibility of imposing additional layers and adjusting the pressure extruded layers on the workpiece, the distributors are located coaxially inside each other, and the distribution channel is distributed along the ring in the conical annular channel 9 formed By an alternating matrix 20 and an array matrix 6 of the distributor 4, an additional layer of the product shell is formed. The extruded material supplied under pressure by another extruder moves along channel 2 of housing 1, fed into channel-1) distributor 4, in which the direction of its movement changes. Going on Tsei 6 and matrix holder 7, is formed feeding materials from extruders, distributors for applying layers of shells, shell products. Part of the flow of extruded material under pressure through the through holes 12 of the cylindrical shape of the matrix 10, enters the conical annular gap formed by the matrix 10 and the matrix 13, where an additional shell of the product is formed. The pressure and concentricity of the applied layers of the shell are regulated by the matrix holder 7 with the help of bolts. Thus, it is possible to simultaneously superimpose two additional layers of the shells and adjust the concentration of each layer of the shell. The invention The extrusion head for imposing polymeric shells on cable products, comprising a housing with channels for provided with a mandrel and mandrel matrix, a cavity for passage of the workpiece, a matrix and fastening and adjustment elements, characterized in that in order to improve the quality of products by the possibility of imposing additional layers and pressure control of the extruded layers on the workpiece, the distributors are coaxially inside each other, and the distribution channel A conical Q casting that extends into the distributor adjacent to the cavity connects the annular channel 25. The distributor 23 is fixed by means of a nut 26 and has the possibility of axial movement. The extrusion head works as follows. The polymer under pressure, developed by the 55 distributor, is installed by an additional worm, moving along channel 3 of the housing with a dummy matrix with through holes through the through hole 22 forming ka-cylindrical shape. with a channel for feeding material from one of the extruders through an orifice, the cross-sectional area of which is equal to half the cross-sectional area of the extruder channel, and between the die and the matrix matrix the body adjacent to the cavity connects the distributor is installed in addition to a dimmer with through holes with a channel for feeding material from one of the extruders through an orifice, the cross-sectional area of which is equal to half the cross-sectional area of the extruder channel, and between the die and the matrix matrix but fi.e.2 A- / J / x // W fie.d