JPS5853126Y2 - Rotating wheel continuous metal extrusion equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary wheel type continuous metal extrusion device, particularly to an improved shoe block thereof.

Generally, the shoe block that covers part of the circumferential groove of the rotating wheel is equipped with a die that serves as a processing tool, and the product is extruded in the radial direction of the rotating wheel, but the core wire is made of aluminum. In the case of extrusion molding a composite product coated with a metal or the like, it is preferable to extrude the product by feeding the core wire in a direction where it is easy to feed the core wire, that is, in the same direction as the axis of rotation of the wheel. stomach.

By the way, the die, which is a processing tool, wears out or breaks with use, so it is necessary to have a structure that allows it to be replaced as necessary. For this reason, the die holder is divided into two parts, and the die and centering mandrel are individually installed in each of the divided holders. and when both holders are combined, the Shoe Jr.
A possible method is to drill a hole in a die holder with an open shoe and insert and hold a die or a centering mandrel through the hole.

In the former case, since the shoe is ultimately subjected to the extremely high pressure of the material, the shoe must be thick and extremely strong, resulting in a large and expensive device.

In the latter case, the die and centering mandrel must be held individually by screws against the pressure of the material, and the screws must have a large diameter. The distance between the extrusion chamber, that is, the circumferential groove of the wheel and the product extrusion section becomes large, which has the disadvantage that the product extrusion speed is forced to decrease due to increased resistance (productivity deteriorates).

This invention was made to eliminate the above-mentioned drawbacks.
A processing tool such as a die or centering mandrel is installed in one or both of the two holders, each of which has a material introduction chamber formed in the mating part, and both holders are connected with a plurality of bolts, or both holders are connected to a feeder plate and a back plate. The shoe block is configured by fitting and locking the holders with a stud pin or groove, or by using a combination of a bolt and a fitting means to form a shoe block, and this shoe block is held by the fixed shoe. , provides a rotating wheel type continuous metal extrusion device that can reduce the size of the entire device including the shoe, as well as shorten the distance from the extrusion chamber, that is, the wheel circumferential groove to the product extrusion section, and improve the extrusion speed. This is what I am trying to do.

The embodiment will be described below with reference to the drawings. In the drawing, reference numeral 1 denotes a wheel driven and rotated by a drive device not shown, and the outer periphery of the wheel is provided with a circumferential groove 2 having a U-shaped cross section.

Reference numeral 3 denotes a feeder plate having a blocking member 4 that fits into the circumferential groove 2 and a hole 5 through which the material flows, and a concave groove 6 is formed in the back of the feeder plate 3 in the direction of rotation of the wheel 1.

T is a die holder 8, 9 is a holder, and 10 is a centering mandrel.

A material introduction chamber 11 communicating with the hole 5 of the feeder plate 3 is formed at the inner surface matching portion of both holders 7.9. , 9 are bolts 12 on both sides of the introduction chamber 11.
are connected by.

Protrusions 13.13' are formed on the inner and outer ends of the holder 7.9, one protrusion 13 is fitted into the groove 6 of the feeder plate 3, and the other protrusion 13' is inserted into the back plate. 14 into the grooves 15.

These feeder plates 3, coupling holders T, 9,
The back plate 14 constitutes one shoe block.

This shoe block is attached to a shoe 25 fixed to the aircraft frame, covers a part of the circumferential groove 2 of the wheel 1 together with another shoe block 25', and works together with the wheel 1 to push out the metal material 16. It constitutes an extrusion chamber 11.

Reference numeral 18 denotes a fitting portion for positioning when the two holders 1 and 9 are joined together.

Since the present invention is constructed in this manner, in order to extrude a composite product formed by coating the core wire with aluminum, the core wire 19 is used as the core material, and the core wire 19 is inserted into the core wire 19 from the mandrel 10 to the die 8. A rod-shaped metal material 16 is inserted into the circumferential groove 2 of the wheel 1 which is driven and rotated in the direction of arrow B.
When the material 16 is supplied, the material 16 is pulled in by the frictional force, and after reaching the blocking member 4 where the tip of the material enters the circumferential groove 2 and is held therein, it is pressurized by the subsequent material entering the extrusion chamber 11.
The material 16' is in a plastic state.

After that, this material 16' is further pressurized and enters the extrusion chamber 17.
The material flows out through the hole 5 of the feeder plate 3 into the material introduction chamber 11 formed in the coupling holder.

Due to the pressure of the material 16' that has flowed into the introduction chamber 11 and filled with it, the joining holder is about to be divided into two parts, but this is due to the bolts 12 that connect both holders 7.9 on both sides of the material introduction chamber 11.
and projections 13. formed on the inner and outer ends of both holders 7.9.
It is blocked by the feeder plate 3 and the back plate 14 which fit and lock the plate 13'.

The material 16' that has flowed into the material introduction chamber 11 surrounds the tapered outer periphery of the centering mandrel 10 disposed across the chamber 11, while its flow direction is bent and the material 16' sequentially surrounds the core wire 19. Together with the supplied core wire 19, it is extruded from the hole of the die 8 to form a composite product 20.

Although the above explanation deals with extrusion molding of composite products, if the die is rearranged according to the desired product as shown in Figs. Cross-sectional products can be continuously extruded.

The holder 7.9 shown in FIGS. 4 to 7 is bolted in a manner similar to that shown in FIGS. 1 to 3.

In the figure, reference numeral 21 indicates a block serving as a plug, and reference numeral 22 indicates a product extraction hole formed in series in the back plate and shoe.

FIG. 4 shows a centering mandrel 10' supported by both holders 7.9.

FIG. 5 shows how the die 8' is assembled when extruding two pipe products at the same time.

FIG. 6 shows the state in which the die 8'' is assembled when extruding only one product such as a solid wire or a rectangular wire in the direction of the rotational axis of the wheel 1.

FIG. 7 shows the state in which the die 8'' is installed when extruding three products simultaneously in three directions.

FIG. 8 shows another embodiment in which the feeder plate 3 and the back plate 14 are integrally formed. , 9 is inserted into the key 26
The structure is connected by

As described above, according to the present invention, it is a combined die holder in which only the die can be replaced if necessary, and the shoe block itself can resist the material pressure that would try to divide the holder into two, allowing the product to be extruded from the wheel circumferential groove. In addition to shortening the distance to the part and improving extrusion speed,
This has the great effect of making the entire device including the shoe smaller and cheaper.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram of a rotating wheel type continuous metal extrusion device according to the present invention, Fig. 2 is an enlarged sectional view of the main part along the line ■ in Fig. 1, and Fig. 3 is a schematic illustration of a rotating wheel type continuous metal extrusion device according to the present invention. Figure 1 shows the coupling holder and the back plate fitted to its back.
4 to 7 are cross-sectional views showing other usage examples, and FIG. 8 is an explanatory view showing another embodiment. 3...Feeder plate, 6...Concave groove, T...Holder f3, 9/, 8#, @
/l/...Die, 9...Holder, 10
, 10'... Centering mandrel, 11...
...Material introduction room, 12...Bolt, 13,13
'...Protrusion, 14...Back plate, 15...Concave groove, 25...Shoe.

Claims (1)

[Scope of utility model registration request] A shoe block is constructed by combining two holders that form a material introduction chamber in the mating part and incorporate a processing tool in one or both of them, and this shoe block is held by a fixed shoe. Rotating wheel type continuous metal extrusion equipment.