JPH0217690Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is an extrusion bending machine for long metal materials,
Specifically, it has a bending means for bending a long metal material, a feeding means for feeding the material to the bending means, and a guide path for guiding the material fed from the feeding means to the bending means. The present invention relates to an extrusion bending machine for metal materials, which includes a guide member.

(Prior Art) Conventionally, in the case of a product as shown in Fig. 2, that is, a product manufactured by bending an elongated metal material and also performing hole drilling, etc., the metal material is generally After or at the same time as the hole-drilling process, a mold is used to perform the bending process.

In addition, products that were formed by only bending a long, thin metal material were manufactured by using a long metal material and sequentially bending this material using an extrusion bending machine. It is.

This extrusion bending machine will be explained with reference to FIG. 1 showing the present application.
and a feeding means 2 for feeding out a long metal material through the guide member 3, and by pressing the material against the processing means 4,
It is made by bending the above-mentioned material.

(Problem to be solved by the invention) However, when manufacturing the product using the mold described above, the manufacturing cost is high because a separate mold is required each time the shape of the product changes. I have a problem.

Further, the extrusion bending machine can cope with changes in the shape of the product by simply changing the control of the bending means 4, so that manufacturing costs can be reduced.

However, since this extrusion bending machine can only feed out the material, the material must first be bent.
Once the material has been bent in this manner, it is actually difficult to drill holes in the material afterward due to the difficulty of positioning and fixing the material. For this reason, it has been practically impossible to manufacture products that require drilling by combining a drilling machine and the extrusion bending machine.

The present invention has been devised in view of the above problems, and its purpose is to perform hole punching in an extrusion bending machine using the guide member 3 before sending the material to the bending means. By making it possible to do so, it is possible to manufacture products that require drilling and bending using the extrusion bending machine without using a mold.

(Means for Solving the Problems) The extrusion bending machine of the present invention is constructed as shown in FIGS. 1 to 7, and includes a bending means 4 for bending a long metal material a, and A metal material a comprising a feeding means 2 for feeding the material a to the processing means 4, and a guide member 3 having a guide passage 31 for guiding the material a sent from the feeding means 2 to the bending means 4. In the extrusion bending machine, the guide member 3 is provided with the guide passage 3.
a hole-drilling section 5 that forms a working hole 32 that penetrates through the work hole 32 and punches a hole in the material a that moves in and out of the working hole 32 and moves through the guide passage 31;
1, and a moving means 5 for moving the processing section 51 in and out.
A hole punching means 5 consisting of 2 is provided.

(Function) For example, as shown in FIG.
a, side walls 7b, 7b of a predetermined height provided on both sides in the length direction of the upper wall 7a, and extension walls 7c, 7 extending toward both sides in the length direction at the lower ends of the both side walls 7b.
When manufacturing a generally convex-shaped metal product 7 having through holes 7d in each of the walls 7a, 7b, and 7c, the metal material a sent out by the feeding means 2 passes through the guide member When passing through the guide passage 31 of No. 3, by advancing the hole-drilling part 51 of the hole-drilling means 5 provided in this guide member 3 at a predetermined timing, each of the through holes is formed in the metal material a at a predetermined pitch interval. After forming the hole 7d, the metal material a is supplied to the bending means 4 side by the feeding means 2, and the bending means 4 is moved forward and backward with respect to the metal material a at a predetermined timing. The upper wall 7a, the side walls 7b, 7b, and the extension walls 7c, 7c are formed by bending the upper wall 7a.

(Example) The extrusion bending machine for elongated metal materials according to the present invention will be described below with reference to the embodiments shown in the drawings.

The extrusion bending machine shown in FIG. A feeding means 2 for the material a is provided, and the material a is pulled out from the drum 1 and sent forward by the rotational drive of a motor 23 provided on one of the rollers 21 and 22, and A guide member 3 having a guide passage 31 for guiding the material a is provided on the forward side of the feeding means 2 in the feeding direction.
A bending means 4 is provided on the front side in the material feeding direction.

Further, the guide member 3 of the processing machine has a working hole 32 that passes through the guide passage 31 of the guide member 3.
is formed, and a drilling portion 51 is formed in this working hole 32.
and a moving means 52 for moving the processing section 51 forward and backward relative to the material a passing through the guide passage 31.

Specifically, a protrusion 51a is provided at the tip of the hole-drilling part 51 in the hole-drilling means 5, and as the moving means 52 of the hole-drilling means 5,
A cylinder 52 having a piston 52a is used, the drilling part 51 is connected to the piston 52a, and the drilling part 51 is supported so as to be movable in and out of the working hole 32 of the guide member 3.
As the piston 52a moves forward, the protrusion 51a of the hole-drilling part 51 is moved into the guide member 3.
The material a is advanced through the guide passage 31 to form a through hole in the material a.

Further, the bending means 4 includes a pair of first and second bending tools 41 and 42 that can move forward and backward relative to the material a fed out from the guide 3 by the feeding means 2, and each of the bending tools 41, 42
are respectively connected to pistons 44 of cylinders 43, and the respective bending tools 41, 42 are moved forward and backward with respect to the material a at predetermined timings by the operation of the respective pistons 44.
By abutting the material a against the material a, the material a is subjected to a bending process.

In this case, by adjusting the amount of movement of each of the bending tools 41 and 42 with respect to the material a, the radius of curvature α of the bent portion to be formed on the material a can be adjusted as shown in FIG. and each of the bending tools 41 and 4 of the material a.
By adjusting the feed amount relative to 2, the bending angle β of the material a can be adjusted.

Further, the feeding means 2 is provided with a control means 6 that detects the amount of feed of the material a by the feeding means 2 and controls the bending means 4 and the hole punching means 5 based on the detection result. That is, among the rollers 21 and 22 constituting the feeding means 2, one of the rollers 21 is placed at its outer circumferential position.
1 rotation speed is detected, and each of the rollers 21 and 22 is rotated.
A detector 61 is provided to detect the amount of material a fed out by the controller 62.
are connected to each cylinder 43 of the bending means 4 and the cylinder 52 of the hole punching means 5 through the controller 62. It is done as if under control.

In this way, the control means 6 operates the cylinder 52 of the hole punching means 5 at a predetermined timing corresponding to the feed amount of the material a by the feed means 2, and advances the piston 52a of the cylinder 52. Through holes are formed at predetermined pitch intervals in the material a passing through the guide passage 31 of the guide member 3 by the protrusions 51a of the processing portion 51, and the control means 6 controls the amount of feed of the material a. Each cylinder 43 of the bending means 5 is actuated at a predetermined timing, and the piston 44 of each cylinder 43 is moved forward and backward.
The material a is bent by the bending tools 41 and 42 connected to the bending tools 41 and 42.

FIG. 2 shows an example of the metal product 7 produced by the above-mentioned extrusion bending machine, in which the upper wall 7a
, side walls 7b, 7b of a predetermined height provided on both sides in the length direction of the upper wall 7a, and extension walls 7c, 7c extending toward both sides in the length direction at the lower ends of the both side walls 7b.
Each of these walls 7a, 7 has a generally convex shape with
A through hole 7d is formed in each of b and 7c.

However, when producing the metal product 7,
When the metal material a is sent out to the side by the feeding means 2 through the guide passage 31 of the guide member 3 and the material a passes through the guide member 3, the hole provided in the guide member 3 is The hole punching part 51 of the processing means 5 is advanced at a predetermined timing, and the through holes 7d of the metal product 7 are formed in the material a at predetermined pitch intervals.
is sent out and supplied to the bending means 4 side.

Then, as shown in FIG. 3, the first bending tool 41 of the bending means 4 is advanced toward the material a, and in this state, the material a is sent out by the feeding means 2 to the first bending tool 41. By abutting, the material a is bent downward,
The extension wall 7c is formed on the tip side of the material a, and then, as shown in FIG. 4, the first bending tool 41 is retracted and the second bending tool 42 advances toward the material a. The material a is brought into contact with the second bending tool 42, and the material a is bent upward in a direction opposite to the bending direction by the first bending tool 41. The side wall 7b is formed continuous with the extension wall 7c.

Further, after the side wall 7b is formed on the material a, the second bending tool 42 is once retreated,
After continuing to feed the material a by the feeding means 2 and continuing to feed the material a over a predetermined length, the second bending tool 42 is moved as shown in FIG.
is advanced again, the feed material a is bent upward to form the upper wall 7a continuous to the side wall 7b, and then the second bending tool 42 is retracted as shown in FIG. Then, the first bending tool 41 is advanced to the material a side, whereby the material a is bent downward, and feeding continues with the material a in contact with the bending tool 41. By doing so, the side wall 7b that is continuous with the upper wall 7a is formed, and then the first bending tool 41 is retracted to bend the material a.
By continuing to send out the side wall 7
The extension wall 7c continuous to the wall 7b is formed, and then the material a is cut to a predetermined size to produce the metal product 7 shown in FIG. 2.

(Effect of the invention) As explained above, in the extrusion bending machine for metal materials according to the invention, through holes are formed at arbitrary pitch intervals by changing the timing at which the hole punching means 5 advances into the material a. Furthermore, by changing the timing of the movement of the bending means 4 toward and away from the material a, it is possible to bend the material into an arbitrary shape. That is, the metal product 7 that requires drilling and bending is
Can be easily manufactured using an extrusion bending machine,
As a result, even when manufacturing the metal products 7 of different shapes, it is possible to manufacture them at low cost without having to create a new mold or the like as in the past.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an embodiment of the extrusion bending machine according to the present invention, Fig. 2 is a perspective view of a metal product produced with the same processing machine, and Figs. 3 to 6 show the manufacturing process of the metal product. FIG. 7 is an explanatory diagram illustrating the bending state of the material by the bending means. 2... Feeding means, 3... Guide member, 31...
Guide passage, 32... working hole, 4... bending means, 5... hole punching means, 51... hole punching section, 52... moving means, a... metal material.

Claims (1)

[Scope of utility model registration request] Bending means 4 for bending a long metal material a
, a feeding means 2 for feeding the material a to the bending means 4, and a guide member 3 having a guide passage 31 for guiding the material a sent from the feeding means 2 to the bending means 4. metal material a
In the extrusion bending machine, the guide member 3
a drilling section 51 for forming a working hole 32 passing through the guide passage 31 and drilling a hole in the material a moving in and out of the working hole 32 and moving in the guide passage 31; An extrusion bending machine for a long metal material, characterized in that it is provided with a moving means 52 for moving a processing section 51 in and out, and a hole punching means 5.