JPH03264121A - Panel bender - Google Patents

Abstract

PURPOSE:To improve the productivity and the working accuracy by arranging the bender body oppositely in freely movable in the approaching and leaving direction and orderly arranging the bender for long side and short side provided with the belt conveyer which expands and contracts in the width direction following the approaching and leaving motion. CONSTITUTION:Two bender bodies 1 are arranged opposite to each other on the bed 1a, and are made in freely moving in the mutually approaching and leaving direction by the motor 5. The belt conveyer 6 is set between the bender bodies 1. The pulley 6c positioned in the intermediate among the pulleys 6c of the belt conveyer 6 is fixed to the rotary shaft 6b, but the other pulleys 6c are supported movably and so the interval between belts 6a can be changed following the approaching and leaving of the bender bodies 1. The work is fed to the long side bender, the bender body 1 is moved, and the work is bent by the pressing die 10 and the receiving die 11. Next, it is fed to the short side bender with the transferring device, and the short side of the work is bent samely Completed products are carried out with the transferring device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a panel bender that is capable of continuously bending the long sides and short sides of a plate-shaped workpiece.

[Conventional technology]

Conventionally, a panel bender for bending a plate-shaped work is known, for example, as described in Japanese Patent Application Laid-Open No. 103625/1983.

The above-mentioned panel bender is equipped with a work loading/unloading device in front of the fixed bender main body for loading/unloading the workpiece, and after bending one side of the workpiece carried in by this work loading/unloading device with the bender main body, the workpiece is rotated. Then, the other side of the workpiece is bent again by the bender body.

[Problem to be solved by the invention]

With the conventional panel bender mentioned above, each time one side of the workpiece is bent, the workpiece is rotated and the other side of the workpiece is bent. Therefore, when bending multiple series of workpieces, the number of steps increases, resulting in poor productivity. There were problems such as.

This invention was made for the purpose of improving the above-mentioned problems, and it provides a panel bender that can bend the opposite sides of a workpiece at the same time and continuously bend the long and short sides, thereby improving productivity. The aim is to improve the

[Means and operations for solving the problem] In order to achieve the above object, the present invention includes a plurality of long side bender bodies;
The short side bender bodies are provided facing each other so as to be movable in the approaching and separating directions, and a belt conveyor that expands and contracts in the width direction following the approaching and separating movements of the bender bodies is provided between these bender bodies. A bender main body for long sides and a bender main body for short sides are arranged sequentially on the upstream and downstream sides of the workpiece transport device, and the long sides or short sides facing each other of the work carried in by the workpiece transport device are simultaneously bendered. To provide a panel bender which is capable of simultaneously bending either the short side or the long side after being bent by the main body.

〔Example〕

An embodiment of the present invention will be described in detail with reference to the drawings.

In the figure, reference numeral 1 indicates a long side bender body for bending the long side of the workpiece 3, and 2 indicates a short side bender body for bending the short side of the workpiece.

A workpiece 3 to be bent on a plurality of sides is carried in the direction of arrow A by a workpiece conveying device 4 and reaches the long side bender main body 1. As shown in FIG. 2, two long side bender bodies 1 are installed on guide rails lb laid on the bed 1a so as to face each other. A belt conveyor 6 and a clamping device 7 are installed between these bender bodies 1, and a belt conveyor 6 and a clamping device 7 are provided between the bender bodies 1.

The belt conveyor 6 is provided with a plurality of endless belts 6a along the workpiece conveyance direction A, and these endless belts 6a are supported by rotating shafts 6b provided apart from each other in the workpiece conveyance direction A. It is wound between pulleys 16c. Among the pulleys 1'6c, the pulley 16c located in the middle of the rotating shaft 16b is fixed to the rotating shaft 16b, and the other pulleys 16C are supported movably in the axial direction of the rotating shaft 16b. As the belts 6a move towards and away from each other, the intervals between the belts 6a are reduced and expanded, so that the workpiece 3 can be transported even when the bender main body 1 moves back and forth.

Further, the workpiece 3 carried in between each bender main body 1 is clamped from above and below by the clamp device 7, and is positioned and fixed at that position.
The bender body 1 controlled by the bender body 1 (not shown) is moved toward the workpiece 3 by the motor 5 that moves it back and forth, and the back gauge (not shown) provided in each bender body 1 comes into contact with both ends of the workpiece 3. At the same time as the bending position is determined, the bender main body 1 is stopped at that position.

After that, the presser die 10 is lowered by the workpiece presser cylinder 9 provided at the front of the bender main body 1, and the receiver clamps the bent part of the workpiece 3 between the die 11 and the die 11 from above and below.
The rotating arm 13 is rotated downward or upward about the support shaft 14 by the vertical bending drive device 12 according to the bending direction of the workpiece 3, and the lower bending die 15 attached to the rotating arm 13 is rotated.
Alternatively, each long side of the warp 3 is simultaneously bent downward or upward at a predetermined angle by the upper bending die 16.

When the bending of each long side of part of the workpiece 3 is completed, the presser die 1
0 releases the work 3 and each bender main body 1 retreats, and the work 3 whose long side has been bent is transported to the short side bender main body 2 by the work transport device 18.

Two short-side bender bodies 2 are installed on the sides of the two intersections 18a and 18b of the workpiece conveyance device 18 so as to face each other, and the workpieces 3 whose direction has been changed at the intersections 18a and 18b are alternately It is scheduled to be imported into the

The bender main body 2 for bending the short sides of the workpiece 3 is also movable in the approaching and separating directions by a back and forth feed motor 20, similar to the long side bender main body 1, and a belt conveyor provided between each bender main body 2. The distance between each of the belts 21a of 21 also expands and contracts as the bender main body 2 approaches and separates.

Then, when the workpiece 3 whose direction has been changed to the arrow B at the upstream intersection 18a of the workpiece conveyance device 18 is carried between the bender bodies 2, the workpiece 3 is moved by the ramp device 22, which is similar to the clamping device 7 on the bender body 1 side. The central part of the is clamped from above and below.

After that, each bender body 2 is moved toward the workpiece 3 side by the forward/backward feed remoter 20, and when the short side of the workpiece 3 comes into contact with a back gauge (not shown) inside the bender body 2, the bender body 2 is stopped at that position. , the bending position is determined.

After that, the presser die 10 is lowered by the workpiece presser cylinder 9 provided at the front part of the bender body 2, and the bending part of the workpiece 3 is clamped between the presser die IO and the die 11 from above and below, and then from above and below. Rotating arm 1 by bending drive device 12
3 is lowered, and each short side of the workpiece 3 is simultaneously bent downward or upward by the lower bending die 15 or the upper bending die 16.

The workpiece 3 whose short sides have been bent is carried out by the workpiece conveyance device 23 in the direction of the arrow.

Further, when the next workpiece 3 is carried into the conveyance device 18 during the above-mentioned processing, the direction of this workpiece 3 is changed in the direction of arrow C at the downstream intersection 18b and carried between the other bender bodies 2. After the short sides of the workpiece 3 are simultaneously bent between the workpieces 2 and 2 in the same manner as described above, the workpiece 3 is carried out in the direction of the arrow E by the workpiece conveyance device 24.

By repeating the above operation, the long sides of the workpiece 3 carried in from the direction of arrow A at opposite positions are continuous with the two long side bender bodies 1, and the short sides are continuous with the short side bender body 2. It becomes possible to perform bending processing.

In the above embodiment, the long side of the work 3 is first bent, and then the short side of the work 3 is bent. However, it is of course possible to bend the short side of the work 3 first, and then the long side. .

Furthermore, although the operations of the vendor bodies 1 and 2 are controlled by the NC device, downloading of setup data and processing data to the NC device can be easily performed by using a line computer.

〔Effect of the invention〕

As described in detail above, this invention uses a plurality of bender bodies disposed opposite each other to bend and lower the opposite sides of the workpiece at the same time. This greatly improves productivity compared to the method of rotating the workpiece and bending different sides, and also improves machining accuracy since there is no need to position each side.

In addition, since multiple short sides can be simultaneously bent in succession to the long side of the workpiece, the cycle time can be significantly shortened when bending the long and short sides of the workpiece, and the overall length of the line can be reduced. It will also be possible to achieve

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, with FIG. 1 being an overall plan view and FIG. 2 being a side view of the bender main body. 1 is the bender body for the long side, 2 is the bender body for the short side, 4,1
8 is a workpiece conveyance device, and 6.21 is a belt conveyor.

Claims (1)

[Claims] A plurality of long-side bender bodies 1 and short-side bender bodies 2 are provided facing each other and movable in the approaching and separating directions, and the bender bodies 1 and 2 are connected between the bender bodies 1 and 2. a belt conveyor 6 that expands and contracts in the width direction following the separation motion;
21, and the long side bender main body 1 and the short side bender main body 2 are arranged sequentially on the upstream and downstream sides of the workpiece conveyance devices 4 and 18.