JPH0214806Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is an extrusion molding device that constitutes an apparatus for manufacturing stranded conductor wire by an extrusion method using frictional force. The present invention relates to a mounting structure for a shoe member that is engaged with an annular groove provided on the outer periphery of a body for causing plastic deformation of a material.

[Conventional technology]

The extrusion molding device that constitutes the main part of the stranded wire manufacturing equipment using the extrusion molding method was developed in 1983.
As disclosed in Japanese Patent No. 36716, etc., it has a configuration as shown in a partially cutaway perspective view in FIG.

That is, as shown in FIGS. 6 to 8,
1 is a roughly cylindrical rotating body that rotates in the direction of the arrow;
An annular groove 2 is bored in the intermediate portion from the outer peripheral surface.
A plurality of extrusion dies 3 are installed on the groove wall of this annular groove 2.
are arranged, and a passage 3a communicating with each of these extrusion dies 3 is opened. Also, rotating body 1
A shaft hole 8 is formed in the center of the shaft, through which the center wire 7a passes in the axial direction.

Further, the shoe member 4 is placed in the annular groove 2.
(See Figure 7.)
When engaged, the material 5 is fed into the annular groove 2 from the supply path 6 formed in the shoe member 4.

The material 5 supplied to the annular groove 2 fills the inside of the annular groove 2 due to the frictional force between both wall surfaces of the rotating annular groove 2 and the co-materials that have already been supplied and have been deformed at the groove bottom. and proceed. Since the passage cross-sectional area of the annular groove 2 is reduced at a constant rate by the inner peripheral surface of the fixed shoe member 4, it progresses while being compressed by the rotation of the rotating body 1, and is plastically deformed when a predetermined compressive stress is reached. The resulting metal material is extruded from the die 3, passes through the passage 3a, and is extruded as a wire 7. The metal material is twisted together with a center wire 7a separately supplied from a shaft hole 8 in a twisting die (not shown) to produce a twisted wire 9. be done.

In such an extrusion molding apparatus, the annular groove 2 of the rotating body 1 is subjected to heat and pressure so strong that the metal is extruded, so the rotating body 1 is formed as an integral structure to withstand this heat and pressure. The structure is such that a groove 2 is bored.

On the other hand, the shoe member 4 has an annular groove 2 in its inner portion.
Since the shoe member 4 is inserted into the annular groove wall and engaged with it with almost no gap, the inner diameter of the shoe member 4 is smaller than the outer diameter of the rotating body 1, and the shoe member 4 cannot be engaged unless it has a split structure. If the shoe member 4 shown in FIG. 6 is divided into left and right halves, for example, the show member 4 shown in the figure is inserted into the annular groove 2 from the direction of arrow mark A, and is inserted into the annular groove 2 from the direction of arrow mark A'. It will be removed from the annular groove 2 by pulling it.

Further, the shoe member 4 having a spiral curve on the inside is configured so that the cross-sectional area of the annular groove 2 gradually decreases.
It must be able to be engaged with a snug fit in a predetermined position. Furthermore, due to this asymmetrical shape, the pressure applied to the shoe member 4 is also distributed asymmetrically, so the shoe member 4 itself must be fixed so that it is not pushed outward and so that it does not rotate together with the rotating body 1. It is necessary to

Therefore, the conventional shoe member 4 is attached as shown in FIG. 7, which is a cross-sectional view of the main part, and FIG. 8, which is a longitudinal sectional view of the main part. That is, the show member 4 has a rectangular outer shape and is fixedly attached to the main body frame 10 while being engaged with the annular groove 2, but the show member 4 is usually divided into 2 to 4 pieces, and can be divided into Each shoe member is temporarily fitted into the annular groove 2 along the main body frame 10, and then a positioning bolt 1 is screwed into the main body frame 10 in the direction of the annular groove 2.
1, it is formed in a structure that is fixed to the main body frame 10 with fixing bolts 12 while adjusting with the rotating body 1.

In the case where the shoe member 4 is composed of a combination of four parts, as shown in FIG. 2, and when the shoe member 4 is composed of a combination of three parts,
As shown in FIG.
By moving the show members 6 and 17 in the directions of the arrows, if the show member 4 is composed of a combination of two parts, the split show members 20 and 21 can be moved in the directions of the arrows, respectively, as shown in FIG. The engagement with the annular groove 2 is adjusted in the same manner. In addition, in FIGS. 10 and 11, reference numerals 18, 19, 22, and 23 are guides for fixing each divided shoe member, and as the number of divisions of the shoe member 4 decreases, the degree of freedom in follow-up adjustment is also limited. be done.

[Problem that the invention attempts to solve]

However, in the conventional mounting structure of the shoe member 4 to the main body frame 10, the shoe member divided into a plurality of pieces is attached to the groove bottom of the annular groove 2 such that the cross-sectional area of the annular groove 2 gradually decreases at a constant rate. The installation work of maintaining and fixing the whole in a well-balanced eccentric state by maintaining a predetermined interval from the center is difficult, and there is a problem in that it takes a long time to install and adjust.

The present invention was developed by focusing on the problems of the conventional shoe member mounting structure, and allows the shoe member to be installed and adjusted very easily, and can be fixed firmly and with high positioning accuracy to the main body frame. The purpose is to provide a mounting structure.

[Means for solving problems]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The shoe member mounting structure of the present invention will be described in detail below based on drawings showing embodiments.

FIG. 1 shows a cross-sectional view of a main part of the mounting structure for a shoe member in an extrusion molding apparatus of the present invention, and FIG. 2 shows a longitudinal cross-sectional view of the main part.

In the figure, the mounting structure of the shoe member 4' of the present invention includes an annular groove 2 formed on the outer periphery and an annular groove 2.
passage 3 from the groove wall through a plurality of extrusion dies 3
The point that the shoe member 4' is engaged with the annular groove 2 of the rotary body 1, which is formed by passing through the annular groove 2, so that the cross-sectional area of the annular groove 2 gradually decreases, and is fixed to the main body frame 10' is the same as before. However, in the mounting structure of the present invention, the shoe member 4' has a circular outer shape,
Further, an adapter 24 formed concentrically with the show member 4' is fitted into a circumferential groove 25 provided on the end surface of the main body frame 10', and the show member 4' engaged with the annular groove 2 is It has a structure in which it is fixed to the main body frame 10' with bolts 12 in contact with the inner peripheral surface of the adapter 24.

FIG. 3 shows a front view of the shoe member 4', and FIG. 4 shows a sectional view of the adapter 24. The shoe member 4' is composed of a combination of two shoe members 27 and 28, each of which is provided with a bolt hole 29 for fixing.

Further, on the end surface of the adapter 24, there are a plurality of screw holes 26 for removal at equal intervals (four screw holes are shown in the figure).
) provided.

[Effect]

The shoe member of the present invention is engaged and fixed in a predetermined position of the main body frame as follows. First, the adapter 24 is removed from the main body frame 10' in advance. Then, the two divided shoe members 4', 4' are inserted into the circumferential groove 25 formed in the main body frame 10' and brought into contact with the annular recess 25a, and then moved in the direction of arrow mark A to form the annular groove. 2, roughly position it, and temporarily fix it with bolts 12 so that it can be moved slightly. (Please note that when removing the shoe member 4', the direction of movement is indicated by the opposite arrow.
The direction is A′. ) Here, the width of the adapter 24 is l, and the distance between the inner circumferential surface of the shoe member 4' and the outer circumferential surface of the annular groove 2 is measured in the mounting direction of the shoe member 4' (direction of arrow mark A or A'). The distance between the holes is defined as the biting depth m of the shoe member 4'. In order to install or remove the shoe member 4' mentioned above,
It is necessary to configure the structure so that the relationship l>m holds true, and to secure a moving distance for attaching and detaching the shoe member 4'. Next, the outer circumferential surface 3 of the adapter 24 is aligned with the inner circumferential surface 31 of the adapter 24 and the outer circumferential surface 30 of the split show members 27 and 28.
2 into the circumferential groove 25 provided in the main body frame 10', the divided shoe members 27 and 28 are joined together into the state shown in FIG. It is engaged and positioned at a predetermined position in the groove 2. In this state, the split show members 27 and 28 are finally fixed to the main body frame 10' using the bolts 12, thereby completing the installation.

Next, when removing the adapter 24 from this state, insert bolts (not shown) into the removal screw holes 26 and screw them in evenly, and after the bolt ends collide with the bottom of the groove of the bolt holes 26, continue screwing. This can be done by

In the above attachment process, the adapter 24 has the function of integrating the divided show members 27 and 28 and automatically positioning the rotating body 1 with respect to the annular groove 2.

[Other Examples]

FIG. 5 shows a main part cross-sectional view of another embodiment of the shoe member mounting structure of the present invention.

In this embodiment, the shoe member 4'' has a rectangular outer shape, and is composed of a combination of shoe members divided into 2 to 4 parts, similar to the conventional shoe member 4 shown in FIG. 7, and is used for positioning. The adapter 24' is also formed into a rectangular ring.The engagement of the shoe member 4'' with the annular groove 2 of the rotating body 1 and the fixing to the main body frame 10'' are performed in substantially the same manner as in the above-described embodiment. Like the circular adapter 24, the adapter 24' of this embodiment has the function of integrating the divided shoe members and positioning the rotating body 1 with respect to the annular groove 2. It also has the function of preventing the shoe member 4'' from moving against bolt tightening under the influence of the rotational stress of the rotating body 1. In the figure, reference numeral 29 indicates a bolt for fixing the shoe member 4'' to the main body frame 10''. Hole 26 is a bolt hole for removal.

[Effect of idea]

As explained in detail above, the mounting structure of the shoe member of the present invention is such that the shoe member is engaged with the annular groove of the rotating body and fixed to the main body frame via an adapter. This enables strong integration of the members, and the large eccentric stress that is applied to the fixed shoe member due to the frictional force with the material that advances while being subjected to compressive stress in the annular groove of the rotating body can be sufficiently absorbed.

In addition, the positioning of the shoe member relative to the annular groove of the rotating body can be performed automatically with high precision, and furthermore, the attachment/detachment and positioning adjustment work of the shoe member is extremely easy, and the installation time can be significantly shortened. It will be done.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of the main part of the present invention, Fig. 2 is a longitudinal cross-sectional view of the main part, Fig. 3 is a front view of the shoe member used in the present invention, and Fig. 4 is a longitudinal cross-sectional view of the adapter. ,
FIG. 5 is a cross-sectional view of a main part of another embodiment of the present invention, FIG. 6 is a partially cutaway perspective view of an extrusion molding device, and FIG. 7 is a cross-sectional view of a main part of a conventional shoe member mounting structure. FIG. 8 is a longitudinal sectional view of the same essential part, and FIGS. 9 to 11 are front views showing examples of division of the shoe member. DESCRIPTION OF SYMBOLS 1... Rotating body, 2... Annular groove, 3... Extrusion die, 3a... Passage, 4, 4', 4''... Shoe member, 5... Raw material, 7... Element wire, 9... Twisting line, 1
0, 10', 10''...Body frame, 24, 24'...
adapter.

Claims (1)

[Scope of utility model registration request] An annular groove is formed on the outer periphery of the rotating body, and a passage is inserted through the groove wall of the annular groove via a plurality of extrusion dies. In the mounting structure of the show member in an extrusion molding apparatus, the show member is fixed to the main body frame in contact with the inner circumferential surface of the adapter attached to the main body frame. A mounting structure for shoe members in extrusion molding equipment.