JPH07290154A - Production of bent part made from extruded material - Google Patents

Abstract

PURPOSE:To produce a bent part made of extruded material in good productivity. CONSTITUTION:A stock 4 for bending, in which a pair of extruded materials 2, 2 in a row are connected at connecting part, is extruded. While the stock 4 is forcedly passed to passing holes 9, 11 in both dies 5, 6 of fixed/moving and at the same time each extruded material 2, 2 is subjected to bending by moving/displacing the moving die 6 with a cutter 10 placed as protruding in the transferring route of stock 4, the connecting part 3 is cut by utilizing the forced transfer of stock 4, the extruded materials 2, 2 are separated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a bent product made of a metal extruded material such as aluminum.

[0002]

2. Description of the Related Art Conventionally, various methods have been adopted as a method for manufacturing a plurality of or a plurality of bent products of a predetermined length made of extruded aluminum material.

As such a method, firstly, a long extruded aluminum extruded material is cut into product-compatible lengths, and the cut extruded materials are sequentially bent one by one. There was a method of giving it.

As a second method, a plurality of bent portions corresponding to the bent shape of the product are formed in the longitudinal direction by bending the extruded long aluminum extruded material, and then the bent portion is formed. There has been a method of cutting a long bending material into the bending portion units.

As a third method, a plurality of extruded materials cut into a product-corresponding length after extrusion processing are arranged in parallel,
There has also been a method of bending these extruded materials at once.

[0006]

However, in the first method described above, since the extruded material having the product length is sequentially bent one by one, the bending takes time and the productivity is improved. I couldn't manufacture bent products well. Moreover, since the extruded material for bending is of a length corresponding to the product, the number of extruded materials corresponding to the number of bent products must be managed for bending, which makes material management very cumbersome. It also had the drawback of becoming a thing.

Further, in the second method, since a plurality of bent product shapes are bent on a long extruded material, the labor required for bending can be saved as compared with the first method. However, after the bending process, it is necessary to cut into individual products, and when the bending process and the cutting process are combined, the productivity of the bent product is not necessarily improved. Furthermore, such bending management is often complicated.

Further, in the third method, since a plurality of extruded materials cut into product lengths after extrusion are collectively bent, it is possible to efficiently perform bending. Since the extruded material for bending is of a length corresponding to the product, as in the case of the first method, the number of independent extruded materials according to the number of bent products is managed for bending. Therefore, the material management becomes very troublesome and the setting of the extruded material in the bending machine is very troublesome because each extruded material is separated and independent.

In view of the above-mentioned conventional problems, the present invention can manufacture a bent product made of an extruded material with high productivity, manage the extruded material before bending, and extruded the material into a bending machine. It is an object of the present invention to provide a method for manufacturing a bent product made of an extruded material that can be easily set.

[0010]

To achieve the above object, the present invention provides a fixed mold having a work passage hole, which is obtained by extruding a bending material including a plurality of extruded materials which are arranged in parallel and connected to each other. A movable mold which is arranged in front of the fixed mold and which has a work conduction hole, and which is supported so as to be capable of turning and displacing, and a movable mold which is arranged behind the fixed mold and is arranged in the work conduction hole of the fixed mold. A bending machine that is equipped with a work feeder that forcibly conducts the work, and bends the work by the cooperative action of the work feeder forcibly conducting the work into both mold conduction holes and the turning / displacement operation of the movable mold. While bending the extruded material in a batch by turning and displacing the movable die while forcibly conducting the bending material to both die conducting holes with a feeder, the bending material Rush into the transition path of With a cutter that is arranged in such a manner, the connecting portion is cut or cut off by using the forced transfer of the bending material by the feeder, and the extruded material is separated from each other. The manufacturing method is the main point.

[0011]

In the above method, a bending material containing a plurality of extruded materials which are arranged in parallel and connected to each other is extruded, and the extruded materials in the connected state are bent. This makes it possible to handle a plurality of extruded materials that are connected to each other as a unit between extrusion processing and bending processing, which facilitates the management of the extruded material after extrusion processing and before bending processing. The setting work to be easy.

Moreover, since the bending apparatus integrally bends a plurality of extruded materials, the bending operation can be efficiently performed.

In addition, as a bending device, a bending machine is used which bends the movable die by turning and displacing the movable die while forcibly transferring the work to the conduction holes of both fixed and movable dies. By using the forced transfer of the extruded material in, the cutter installed so as to project in the transfer path of the extruded material cuts or cuts the connecting portion of the extruded material to separate the extruded materials. The bending process and the cutting process are simultaneously performed, so that the bent product can be manufactured comprehensively with high productivity.

[0014]

Embodiments of the present invention will be described below.

As shown in FIG. 5, the curved product to be manufactured is a curved product (1) made of a hollow aluminum hollow extrusion having a chamfered slope. There are no particular restrictions on the cross-sectional shape / size, length, and bent shape of the bent product.

In this embodiment, the bent product (1) is manufactured as follows.

That is, first, as shown in FIG. 1 (a), two extruded materials (2) and (2) having the above-described cross-sectional shape and size are juxtaposed to each other at a connecting portion (3). The bending material (4) having the connected structure is extruded. The connecting part (3) is preferably formed in a structure that can be easily cut off, for example, a thin-walled structure as shown in the drawing. The extrusion process is
It may be performed by using a die having a molding gap having a shape corresponding to the cross-sectional shape of the bending material (4). In addition,
After extrusion, the bending material (4) is generally cut into product length units as appropriate.

Next, the extruded material (4) is bent. A bending apparatus as shown in FIGS. 1B and 2 is used for this bending.

In this bending apparatus, (5) is a fixed mold, (6) is a movable mold, and (7) is a feeder.

The fixed die (5) is a die that serves as a fulcrum during bending, and has a work passage hole (9) through which the bending material (4) is passed in a substantially conforming state. That is, as shown in FIG. 3, the work communicating hole (9) is provided with the extruded material (2) (2).
The holes (9a) (9a) for passing through and the holes (9b) for passing through the connecting portion (3) are in communication with each other. In addition, the workpiece communication hole (9) is a relative positional relationship between the material (4) and the fixed die (5) in a cross section when the material (4) for bending is conducted to perform bending. Any material that does not cause a deviation in
It is not necessary to have a cross-sectional shape that matches the outer peripheral shape of the.

Then, on the exit side of this fixed mold (5),
A cutter (10) for cutting the connecting portion (3) of the bending material (4) which is passed through the through hole (9) of the fixed mold (5).
Are installed in the fixed mold (5). The cutter (10) has a width corresponding to the width of the connecting portion (3) of the bending material (4), and the cutting blade portions (10a) (10a) on both sides of the cutter die (5) of the fixed die (5). It extends diagonally upward from the lower adjacent position of the connecting part conducting hole (9b) to the upper part of the connecting part conducting hole (9a) and conducts to the work conducting hole (9) of the fixed die (5). Material for bending (4)
Exiting the conduction hole (9), the extruded materials (2) (2) on both sides try to move toward the movable mold (6), and the connecting part (3) interferes with the upper surface of the cutter (10). Both cutting blades (10a) (10a) of the cutter (10) and both extruded materials (2)
Both extruded materials (2) and (2) due to the shearing action of (3)
It is designed to be separated from. The cutting blades (10a) (10a) of the cutter (10) are arcuately extended upward from the fixed mold (5) side toward the front, and are smoothly cut and separated without difficulty. The connecting portions (3) are separated so as to draw an arc.

On the other hand, the movable mold (6) serves as an action part during bending, has a work conduction hole (11) through which the bending material (4) is fitted, and has a fixed mold ( It is arranged on the front side of 5) so as to be capable of turning and displacing. The work conduction hole (11) has a cross-sectional shape corresponding to the outer peripheral shape of the bending material (4), that is, the extruded material (2) (2), as in the fixed mold (5). In addition to the extruded material conduction hole portions (11a) and (11a) that conduct electricity, the connection portion conduction hole portion that conducts the connection portion (3) may be provided in a communicating state, and as shown in FIG. The connecting part (3) is located at the cutter (1) when it comes out of the fixed mold (5).
Since it is cut off in 0), it may be formed in the conduction hole portion where the connection portion conduction hole portion is omitted. The point is that when the bending material (4) is made conductive and bending is performed, the relative positional relationship between the material (4) and the movable mold (6) in the cross section does not become out of order. Anything will do.

The feeder (7) is arranged behind the fixed mold (5) and forcibly causes the bending material (4) to conduct to the fixed mold (5). The metal plate (4) and the metal plate (12) that moves in the front-back direction to press the end
And a guide (13) for guiding.

The bending of the bending material (4) is performed by setting the material (4) in the guide (13) of the feeder (7) by using the above-described bending apparatus and rearward of the bending material (4). By driving the pressing metal (12) from the front to the front, the bending material (4) is forcibly conducted from its tip to the work conduction hole (9) of the fixed mold (5). Then, as shown in FIG. 1 (b) and FIG.
In the bending material (4), the connecting portion (3) is cut off by the cutter (10) at the exit side of the fixed mold (5), and the two extruded materials (2) and (2) become separated. At the same time, the two extruded materials (2) and (2) are passed by the work passing hole (11) of the movable mold (6) and the turning / displacement operation of the movable mold (6).
Are bent between the two molds (5) and (6) with the fixed mold (5) as a fulcrum, and are transferred to the front of the movable mold (6) in a predetermined curved shape, and finally to each other. Two bent products (1) having a predetermined curved shape separated from each other
Is obtained by such a single bending process.

As described above, according to the above manufacturing method, the two bending materials (2) and (2) are arranged in parallel and connected at the connecting portion (3) ( 4) is extruded and bent using such a bending material (4), the number of materials to be managed is reduced by half after extrusion and before bending. Material management can be facilitated. Further, since the two extruded materials (2) and (2) can be set as a constant object in the bending machine, the setting work can be easily performed.

Moreover, since the bending material (4) including the two extruded materials (2) and (2) is bent, one bending operation is performed for two bending products (2). )
(2) can be bent, and the bending can be performed with good production.

In addition, as a bending device, the movable die (6) is turned and displaced while the work is forcedly conducted to both fixed and movable dies (5) and (6) by the feeder (7). A bending type is used, and a connecting part (3) for connecting both extruded materials (2) and (2) is connected by a cutter (10) arranged on the exit side of the fixed mold (5). , Utilizing the forced transfer action of the material (4) by the feeder (7),
Since it is supposed to be cut, the connecting portion (3) is cut at the same time by bending, so that two bent products (1) separated from each other can be obtained, and also the bent product with good productivity as a whole. (1) can be manufactured.

Moreover, in the above embodiment, as the cutter, the cutting blade portions (10a) (10a) connecting portions (3) on both sides thereof are used.
Since the connecting portion (3) is cut away so as to move away from the transition path of the extruded material (2) and (2), it is bent after the bending process. It is not necessary to separate the product (1) and the connecting portion (3) from each other, and the cut connecting portion (3) can be efficiently processed. Moreover, the cutter (10)
Since the cutting blades (10a) (10a) of the are extended in an arc shape, the connecting part can be cut smoothly without any difficulty, and the connecting part (3) can be cut in an arc. Can be performed in a space-saving manner, safely and efficiently.

In the above embodiment, a bent material (1) having the same cross-sectional shape is used by using a bending material (4) containing a plurality of extruded materials (2) (2) having the same cross-sectional shape.
In the present invention, as shown in FIG. 6, one is a hollow extruded material (15) having a triangular cross section, and the other is a hollow extruded material having a square cross section. This is applied when manufacturing bent products with different cross-sectional shapes using a bending material (4) that includes a plurality of extruded materials (15) (16) with different cross-sectional shapes, such as material (16). May be. In addition, in the above-mentioned embodiment, a method of simultaneously producing two bent products (1) using a bending material in which two extruded materials (2) and (2) are connected in parallel is shown. In the present invention, a bending material containing three or more extruded materials may be used to simultaneously manufacture three or more bent products. Further, in the above-mentioned embodiment, the case where the cutter (10) is arranged on the exit side of the fixed mold (5) so as to be mounted on the fixed mold (5) has been described, but as shown in FIG. (10) may be disposed on the exit side of the movable mold (6) in an installed state in the movable mold (6). The point is that it may be arranged so as to project in the transition path of the extruded material during bending. Therefore, depending on the arrangement position, the fixed or movable molds (5) and (6) may not be provided in the mounted state, but may be arranged in a state independent of these molds. Also, the cutter may have various structures as long as it can exert a cutting action on the connecting portion of the bending material that is forcibly transferred by the feeder. Further, in the above-mentioned embodiment, as the material (4) for bending, the extruded materials (2) and (2) are connected by the connecting portion (3) having a predetermined width, and the connecting portion (3) is used. ) Is cut, but a structure in which a plurality of extruded materials are directly connected to each other is used as a bending material, and the extruded materials are separated by cutting instead of cutting in bending processing. You may Also, in the case of manufacturing a bent product made of a strip-shaped extruded material, a bending material having a width of several times the width of the strip is extruded as a bending material,
The case of manufacturing a plurality of strip-shaped bent products simultaneously by cutting or cutting as described above while bending this is also included in the scope of the present invention.

[0030]

As described above, according to the method for manufacturing a bent product made of an extruded material of the present invention, a bending material including a plurality of extruded materials that are arranged in parallel and are connected to each other is extruded.
Since the bending process is performed on a plurality of extruded materials in the connected state, it is possible to handle a plurality of extruded materials connected to each other as a unit, and control of the extruded materials until the bending process after the extruding process is performed. It is easy to do, and the setting work to the extruder can be done easily.

Moreover, since the bending apparatus collectively bends a plurality of extruded materials, the bending can be efficiently performed.

In addition, as a bending apparatus, a bending machine is used which bends the movable die by turning and displacing the movable die while forcibly transferring the work to the conduction holes of both the fixed and movable die. Utilizing the forced transfer of the extruded material, the cutter disposed so as to project in the transfer path of the extruded material cuts or cuts the connecting portion of the extruded material to separate the extruded materials from each other. Bending and cutting are performed simultaneously,
Therefore, it is possible to manufacture bent products comprehensively with high productivity.

[Brief description of drawings]

FIG. 1 shows an embodiment, FIG. 1A is a perspective view of a bending material, and FIG. 1B is a vertical cross-sectional view showing a state where bending is performed by a bending apparatus.

FIG. 2 is a sectional view taken along the line I-I of FIG.

FIG. 3 is a perspective view showing a front end side of a fixed mold.

FIG. 4 is a vertical cross-sectional view showing a state in which a material is bent by a bending apparatus according to another embodiment.

FIG. 5 is a perspective view of a bent product.

FIG. 6 is a perspective view of a bending material according to another embodiment.

[Explanation of symbols]

 1 ... Bent product 2 ... Extruded material 3 ... Connection part 4 ... Bending material 5 ... Fixed mold 6 ... Movable mold 7 ... Feeder 9 ... Conduction hole 10 ... Cutter 11 ... Conduction hole

Claims (1)

[Claims] 1. A fixed mold having a work-passage hole, and a fixed mold having a work-passing hole, which is arranged in front of the fixed mold, and which is formed by extruding a bending material including a plurality of extruded materials arranged in parallel and connected to each other. A movable die having a work conduction hole and supported so as to be capable of turning and displacing, and a work feeder arranged behind the fixed die and forcibly conducting the work to the work conduction hole of the fixed die are provided, Using the bending device that bends the work by the cooperative action of the work feeder's forced conduction of the work to both mold conduction holes and the turning and displacement operation of the movable mold, the bending material is fed by the feeder. While the movable dies are turned / displaced while forcibly conducting to both mold conduction holes to bend each extruded material at a time, the cutter arranged to project in the transition path of the bending material is placed on the cutter. By the feeder Bending by using a forced migration of material for processing and cutting or ablating the connecting portions, the manufacturing method of the bending parts consisting of extruded material, characterized in that the separation of each other extruded material.