JPS5910852B2 - Oshidashi Souchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an advantageous extrusion device that has no limit to the length of the material and allows for infinitely continuous production.

In the past, extrusion devices of this type are quite novel and have a number of drawbacks.

JP-A-47-31859 and JP-A-49-6536
Specification No. 9 describes this extrusion device, and according to this, the extrusion device basically consists of a movable wheel having an endless groove on the peripheral end surface, and a part of the peripheral end surface of this wheel. a stationary shoe block engaged with the endless groove and forming a transport passage for the material between the endless groove, in which the material fed is displaced by the rotation of the wheel. A predetermined extrusion force is obtained due to the frictional resistance of contact with the endless groove, and the material is moved through the passage, and finally extruded from the die.

However, the structure of the passage, as shown in FIG.
They are simply mated together with straight sides of equal width.

Therefore, in such a joint, since it is difficult to close the groove formed on the rotating member with another stationary member, a gap is easily created due to the internal pressure of the material, and a part of the material is removed from there. Leakage, or paris, occurs.

This causes problems in that the material yield is poor and the extrusion apparatus must be stopped from time to time for deburring operations.

The present invention has been made for the purpose of providing an advantageous extrusion device that can significantly reduce the occurrence of paris, and includes a movable wheel having an endless groove on its peripheral end surface, and a protruding engaging portion having a width approximately equal to the opening width of the groove. an extrusion device comprising: a fixed shoe block having a fixed shoe block; the groove and the protruding engaging portion are brought together to close the opening of the groove and form a transport passage for the material to be extruded inside the groove; In this method, the above-mentioned groove and the protruding engaging part are engaged by not only the engagement on their respective linear sides but also the engagement by a stepped engagement part having a surface parallel to the axis of the movable wheel. This invention relates to an extrusion device characterized in that it is made up of:

Next, an embodiment of the extrusion apparatus of the present invention will be explained with reference to the accompanying drawings, including the production of composite wire.
0 is a movable wheel having endless grooves 11, 11 on its peripheral end surface, and is rotated in the directions of arrows A and A', respectively.

12 is a fixed shoe lock disposed between the wheels 10 and 10, and is composed of a main body 13 and a receiving part 14.

The main body 13 and the receiving portion 14 may be integrated or separate.

The main body 13 has the groove 1 on a surface corresponding to the peripheral end surface of the wheel 10.10, as shown in FIGS. 3 and 4.
It has a protruding retaining portion 15.15 with approximately the same width as 1.11.

The protruding engaging parts 15, 15 are fitted together so as to close the openings of the grooves 11.11, respectively, to form an elongated transport passage 16.16 inside the grooves 11, 11.

The engagement between the opening of the groove 11.11 and the protruding engagement portion 15.15 is such as shown in the cross-sections of FIGS. 3 and 4 in the middle and at the end of the passages 16, 16, respectively. .

In FIG. 3, the groove 11 and the engaging part 15 are engaged not only on their respective linear sides but also on a stepped engaging part 17.17 having a surface parallel to the wheel axis. It is integrated throughout.

On the other hand, in FIG. 4, the groove 11 and the engaging portion 15 are fitted into each other at the large diameter portion 1818 of the stepped engaging portion 17.17.

The receiving portion 14 is connected to the passage 16 . 16 and a terminal end of the collecting chamber 19, and a die 20 is provided at a position facing the collecting chamber 19.

According to this extrusion device, the core material 21 is supplied straight from the main body 13 side to the gathering chamber 19 and passes through the die 20 as shown by arrow B.

On the other hand, the outer layer material 22.22 is fed into the passage 16.16 as indicated by arrows C and C, respectively.
A predetermined extrusion pressure is obtained by the contact frictional resistance with the groove IL11 that is generated by the rotation of the wheels 10, 10, and the wheels are moved through the passages 16 and 16, respectively.
At 9, the composite wire 23 is assembled together with the core material 21 by convergence, and then extruded from the die 20 in the direction of arrow D to obtain a predetermined composite wire 23.

Note that, for example, a steel wire is used as the core material 21, and aluminum metal, for example, is used as the outer layer material 22.

From this, it can be seen that the composite wire 23 can be an aluminum-coated wire.

In addition, such a two-wheel method can provide an aluminum steel-covered wire 23 with less uneven thickness of the outer layer material.

FIG. 5 shows another embodiment of the present invention, which is shown with a cross-sectional view of the passageway 24, similar to FIGS. 3 and 4.

According to this figure, the passage 24 is connected to the endless groove 26 of the movable wheel 25 and the protruding engagement portion 2 of the fixed shoe block 27.
It is constructed by mating with 8.

As is clear from this figure, the engagement between the groove 26 and the engagement portion 28 is the same as in the first embodiment, in addition to the engagement on the respective linear sides, there is also a step-like engagement with the surface parallel to the wheel axis. They are mated by mating at the engaging parts 29, 29, and furthermore, a recessed part is provided in such a mating part.

Note that 30 is a die.

According to the extrusion device of this embodiment configured in this way, the grooves 11,
11 and 26 and the protruding engaging parts 15, 15, and 28 are engaged with each other by not only engaging with each other on their linear sides but also engaging with stepped engaging parts having surfaces parallel to the axis of the movable wheel. Since it is made by interlocking, it is possible to structurally reliably reduce the occurrence of paris.

As a result, the extrusion apparatus described above has the effect that the yield of the materials used can be improved, and that continuous extrusion can be carried out without any trouble by reducing the amount of deburring work.

As described above, the present invention provides an advantageous extrusion device that can significantly reduce the occurrence of paris, and its industrial value is extremely significant.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional example, FIG. 2 is an explanatory diagram of an embodiment of the extrusion apparatus of the present invention, FIG. 3 is a sectional view taken along line I-1' in FIG. 2, and FIG. The n' sectional view and FIG. 5 are explanatory diagrams of other embodiments of the present invention. 10, 25: Movable wheel, 11.26: Endless groove, 12, 27: Fixed shoe block, 15, 28: Projecting engagement portion, 16, 24: Transport passage, 17, 29: Engagement portion,
19: Gathering room, 20, 30: Die, 21: Core material, 22:
Outer layer material, 23: composite wire.

Claims (1)

[Claims] 1 Consisting of a movable wheel having an endless groove on the peripheral end surface and a fixed shoe block having a protruding retaining part with a width approximately equal to the opening width of the groove, the shoe block connects the groove, the groove, and the protruding retaining part. In an extrusion device that closes the opening of the groove and forms a transport passage for the material to be extruded inside the groove, the engagement of the groove and the protruding retaining portion described above is performed by each straight line. An extrusion device characterized in that, in addition to the engagement on the side surfaces, the engagement is achieved at a step-shaped retaining portion having a surface parallel to the axis of the movable wheel.