JPS6239847Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is a rotating wheel type continuous metal extrusion device,
In particular, the present invention relates to an extrusion device for a composite material in which the core material is arranged at an eccentric position and the outer shape of the covering material is not a perfect circle.

(Prior Art) Conventional composite products have mainly been produced by extruding a composite wire in which the outer periphery of a core wire placed at the center is covered in a circular shape. Therefore, relative positioning between the point die and the die, particularly in the circumferential direction, was not required. Therefore, there is no known technology regarding an extrusion device for a composite product in which the core material is arranged at an eccentric position and the outer shape of the covering material is not a perfect circle.

On the other hand, in normal hot extrusion, when extruding a hollow material, it is well known that a dowel pin or key is used to determine the relative position between the mandrel and the die. There is also a mechanical problem in using it as it is in an extrusion tool for composite products containing a large number of core materials.

(Problems to be solved by the invention) In view of the above-mentioned actual situation, this invention makes it possible to position between the point die and the die by applying a simple means to the composite product extrusion tool, and uneven thickness of the core material due to poor positioning. It is an object of the present invention to provide an extrusion device that prevents such problems.

(Means for solving the problem) It consists of a driving rotating wheel equipped with a circumferential groove and a fixed tool equipped with an abutment that covers a part of this circumferential groove, and the core material is arranged at an eccentric position, In a continuous metal extrusion device that extrudes a composite material whose outer shape is not a perfect circle, a processing tool consisting of a flow dividing plate, a point die, and a die is stored in the fixed tool, and the material is introduced in a direction perpendicular to the axial direction of the tool storage hole. In addition to drilling a communication path between the chamber and the wheel groove, the flow dividing plate is provided on the outlet side of the material introduction chamber, and a notch is formed on the point die and the outer periphery of the die, with which the end surface of the flow dividing plate on the material exit side makes surface contact. It is characterized by what it did.

(Example) Hereinafter, the structure of the present invention will be explained with reference to an example shown in the drawings.

In the figure, reference numeral 1 denotes a wheel having a circumferential groove 2 on its outer periphery, which rotates in conjunction with a drive device (not shown) rotatably held around an axis. 3 is a fixed tool equipped with an abutment 4 that covers a part of the outer periphery of the wheel 1, and has a flow dividing plate 5 and a point die 6 inside.
A processing tool consisting of a die 7 and a die 7 is housed therein, and a passage 9 that communicates the material introduction chamber 8 and the wheel circumferential groove 2 is bored in a direction perpendicular to the axial direction of the processing tool storage hole.

The flow dividing plate 5 is installed on the outlet side of the material introduction chamber 8, and as shown in the figure, the end face of the ring-shaped brim (this does not have to be particularly ring-shaped) is attached to a point on the outer periphery of the point die 6 and the die 7. It is configured so as to come into contact with the cutout portion A. Furthermore, a spigot part is formed in this part also in the axial direction of the point die 6 and die 7 (between X-Y in FIG. 1).

Further, the point die 6 has a material passage 6a between its side surface and the fixed tool body, and a hole for holding and passing the core material therethrough.

(Function) Since the present invention is constructed as described above, in order to extrude mold a composite product in which the core material 10 is coated with a metal material such as aluminum, first the core material 10 is coated with a metal material such as aluminum.
0 through the point die 6 and into the die hole 7a, and the circumferential groove 2 of the wheel 1 which is being driven and rotated.
Metal materials such as aluminum that serve as coating materials 11
When supplied, the material 11 is pulled in by the frictional force caused by contact with the circumferential groove 2, and when the tip of the material reaches the abutment 4 protruding between the circumferential grooves 2, it is pressed by the following material and becomes plastic. It becomes a state of
It flows out into the passage 9 and is further introduced into the material introduction chamber 8. The material filling the material introduction chamber 8 is diverted by a flow dividing plate 5 provided on the outlet side thereof, and is diverted to a material collection chamber 6b formed in front of the die 7 from a passage 6a formed on the side of the point die 6. The raw material and the core material are joined together and continuously extruded from the die hole 7a as a composite product 12.

(Effect) With the above configuration, when assembling the point die, die, and flow divider plate into the fixed tool,
As long as the point die and the notch on the outer periphery of the die and the end face of the material outlet side of the diverter plate are assembled so that they are in surface contact with each other, the end faces of the notch part of the point die and the die are aligned at the material outlet end face of the diverter plate. They are aligned on the same surface, and the point die and die can be assembled without any deviation in the circumferential direction. In this way, when manufacturing a composite product in which the core material is placed at an eccentric position and the external shape of the covering material is not a perfect circle, it is possible to manufacture a composite product in which the relative relationship between the covering external shape and the core material is as desired.

In addition, even if the point die and the die are slightly shifted in the circumferential direction when the fixed tool is assembled with the point die, when extruding the material, the extrusion pressure of the material will be applied to the material inlet end face of the flow dividing plate. The pressing force causes the material outlet side end surface of the flow dividing plate to strongly adhere to the point die and the notch of the die, and due to this adhesive force, the point die and the die are automatically aligned on the same plane, and the As a result, it is possible to manufacture a composite product in which the relative relationship between the outer shape of the coating and the core material is as desired.

[Brief explanation of drawings]

FIG. 1 is a schematic side sectional view of a rotating wheel type continuous metal extrusion device according to the present invention. Figure 2 is - of Figure 1.
A plane sectional view taken along the line. FIG. 3 is a sectional view taken along the - line in FIG. 1. FIG. 4 is a sectional view taken along the line of FIG. 1. FIG. 5 is a sectional view taken along the - line in FIG. 1.
FIG. 6 is a sectional view showing an example of a composite product. In the figure; 1...wheel, 2...circumferential groove, 3
... Fixed tool, 4 ... Abutment, 5 ... Diversion plate, 6 ... Point die, 6a ... Passage, 6b ... Material gathering chamber, 7 ... Die,
7a...Die hole, 8...Material introduction chamber, 9
...Material passage, 10...Core material, 11...Coating material, 12...Product.

Claims (1)

[Scope of utility model registration request] It consists of a driving rotating wheel 1 having a circumferential groove 2 and a fixed tool 3 having an abutment 4 that covers a part of the circumferential groove 2. In a continuous metal extrusion device for extruding a composite material whose shape is not a perfect circle, a processing tool consisting of a flow dividing plate 5, a point die 6, and a die 7 is housed in the fixed tool 3, and the processing tool is formed in a direction perpendicular to the axial direction of the tool storage hole. A communication path 9 between the material introduction chamber 8 and the wheel circumferential groove 2 is bored, and the flow dividing plate 5 is provided on the exit side of the material introduction chamber 8, and the flow dividing plate 5 is provided on the outer periphery of the point die 6 and the die 7. A rotating wheel type continuous metal extrusion device characterized in that a notch A is formed in which the end face of the material exit side of No. 5 comes into surface contact.