JPH0431768B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a forming apparatus for a corrugated metal plate for making the width of each part in the flow direction of a forming line the same in forming a corrugated metal plate.

[Background Art] When a corrugated metal plate is formed with a forming roller, the metal plate does not undergo complete plastic deformation, so the width of each part of the corrugated metal plate in the forming line flow direction (hereinafter simply referred to as the longitudinal direction) is not constant. For this reason, in the past, the number of stages of the forming roller was increased to bring the width of each part in the longitudinal direction of the corrugated metal plate closer to each other. On the other hand, the wide part still remained relatively wide compared to the narrow part, so this was not a fundamental solution. Moreover, in the case where the number of stages of forming rollers is increased, there is a problem that the forming line becomes long.

[Object of the Invention] The present invention was invented in view of the above points, and its object is to provide a corrugated metal plate that can make the width of each part in the longitudinal direction of the corrugated metal plate the same. The purpose of the present invention is to provide a metal plate forming device.

[Disclosure of the Invention] The corrugated metal plate forming apparatus of the present invention includes a straightening roller 3 disposed after the forming roller 1 and which is movable up and down.
and a corrugated metal plate 2 formed by a forming roller 1.
a detection means 4 for detecting the passage of the corrugated metal plate 2; a setting means A for presetting data regarding the width of each part in the longitudinal direction of the forming line of the corrugated metal plate 2; 3 is characterized by comprising a control means B for controlling the corrugated metal plate 2 to be pressed against the corrugated metal plate 2 when passing through a wide portion or a narrow portion, and adopting such a configuration. Thus, the above-mentioned object of the present invention has been achieved.

The present invention will be explained in detail by way of examples. Forming roller 1
The lower forming shaft 5 is provided with rollers 6 for forming small diameter ridges and the rollers 7 for forming large diameter valleys alternately, and the upper forming shaft 8 is provided with rollers 9 for forming small diameter ridges and rollers 9 for forming large diameter valleys. Surface forming rollers 10 are provided alternately, and these rollers are arranged as shown in FIG.
A plurality of such forming rollers 1 are lined up so that the corrugation depth gradually increases, and when a metal plate is fed into the first group of forming rollers, the metal plate is formed by the first group of forming rollers and the corrugated metal is formed. A plate 1 is adapted to be molded. A correction roller 3 is arranged behind the forming roller 1. This straightening roller 3
The upper shaft 11 is provided with a roller 12 for correcting the crest surface and a roller 13 for correcting the valley surface, and the lower shaft 16 is provided with a roller 14 for correcting the crest and a roller 15 for correcting the bottom of the valley. At least one of the shaft 11 and the lower shaft 16 is movable in the vertical direction.
In the embodiment shown in the drawings, the upper shaft 11 is shown to be vertically movable. A movable bearing 17 is provided at the end of the upper shaft 11.
7 is fitted into a vertical groove 19 provided in the base plate 18 so as to be vertically movable, and the lower end of a shaft 20 is fixed to the upper part of the movable bearing 18. The shaft 20 is inserted into a through hole, and has an enlarged portion 22 at its upper part, and a spring 23 is fitted onto the shaft 20. One end of the spring 23 is brought into contact with the enlarged portion 22, and the other end of the spring 23 is inserted into the shaft 20. The spring 23
Normally, the shaft 20 is pulled upward by the spring force, and therefore the upper shaft 11 is pulled upward. A shaft support 24 is provided on the upper part of the board 18, and a rotation shaft 25 is attached to the shaft support 24.
is rotatably supported. A cam 26 is provided on the rotating shaft 25, and a link 2 is provided on the rotating shaft 25.
One end of the link 7 is fixed, and the other end of the link is pivotally connected to an operating rod 29 of a cylinder 28 such as an air cylinder or a hydraulic cylinder. Here, one end portion of the cylinder 28 is pivotally attached to the base plate 18 so as to be freely rotatable. Here, when the cylinder 28 is operated, the cam 26 rotates and pushes down the enlarged portion 22 of the shaft 20, and the upper shaft 11 descends against the spring force of the spring 23 to correct the mountain surface. The roller 12 and the valley surface correction roller 13 are lowered to perform correction forming while sandwiching the corrugated metal plate 2 between the mountain and valley surface correction rollers 14 and 15. A detection means 4 is provided in front of the correction roller 3. As the detection means 4, a phototube is used in the illustrated embodiment.
That is, the corrugated metal plate 2 is formed by a group of forming rollers and flows by a photoelectric tube which is the detection means 4.
The detection signal from the detection means 4 is transmitted to the control means B. The control means B is preset with data regarding the width of each part in the longitudinal direction of the forming line of the corrugated metal plate 2 by the setting means A, and the control means B uses the preset data and the output of the detection means 4 to set the cylinder. 28 to control the correction roller 3.
is pressed against the corrugated metal plate 2 when passing through a wide portion or a narrow portion. However, in the above-mentioned apparatus, the corrugated metal plate 2 is experimentally formed by passing the metal plate through the forming roller 1 with the straightening roller 3 in a non-pressing state (in other words, with the upper shaft 11 pulled upward). Shape. In this case, measure the widths A, B, C, etc. at each part in the longitudinal direction of the corrugated metal plate 2 that was experimentally formed.
Accordingly, locations requiring correction by the correction roller 3 and locations requiring no correction in each portion of the corrugated metal plate 2 in the longitudinal direction are determined, and this data is preset in the control means B. Next, after the above preparations are completed, a new metal plate for main forming is passed through a group of forming rollers 1 to form a corrugated metal plate 2. The cylinder 28 is controlled by the control means B, and the straightening roller 3 is pressed against the corrugated metal plate 2 when passing a wide part or a narrow part, and corrects the wide part or the narrow part to narrow the width of the wide part. or widen the width of the narrow part.
In other words, if you want to straighten a wide part to a narrow width using the narrow part as a reference, set the correction roller 3 so that it is pressed against the corrugated metal plate 2 only when passing through the wide part; If it is desired to correct a narrow portion to make it wider, the correction roller 3 is set so as to be pressed against the corrugated metal plate 2 only when passing through the narrow portion. In the above embodiment, the correction roller 3 is moved up and down by the cylinder 28, but the correction roller 3 may be moved up and down by other means other than the cylinder 28.

[Effects of the Invention] As described above, the present invention includes a detection means for detecting the passage of a corrugated metal plate formed by a forming roller, and presets data regarding the width of each part in the longitudinal direction of the forming line of the corrugated metal plate. a setting means for
Since it is equipped with a control means for controlling the straightening roller to be pressed against the corrugated metal plate when passing through a wide portion or a narrow portion based on preset data and the output of the detection means, the corrugated metal plate by the detection means can be controlled. Based on the detection result of the passage of the plate and the preset data regarding the width of each part in the longitudinal direction of the forming line of the corrugated metal plate, the correction roller corrects the corrugated metal plate when passing the wide part or the narrow part. This has the advantage that the correction roller is driven and moved based on the data preset in this manner, and correction can be performed as desired. In addition, the correction roller is driven and moved based on the preset data to achieve the target correction, so as long as the preset data is appropriate, it can be used in an open control mode rather than in a closed loop control mode such as feedback control. Detects the degree of straightening of the finished product that has been straightened by the straightening roller,
There is no need to perform feedback control such as operating the straightening roller again based on this detection result, and open control has the advantage of simplifying the control system and making it possible to obtain a corrugated metal plate as desired while keeping the control system simple and inexpensive.

[Brief explanation of drawings]

FIG. 1 is a schematic overall side view of the device of the present invention, and FIG.
The figure is a front view of the correction roller part of the same as above, FIG. 3 is a side view of the mechanism for raising and lowering the correction roller of same as above, FIG. 4 is a front view of the forming roller part of same as above, and FIG. 5 is a block circuit diagram of the present invention. , FIG. 6 is a perspective view of a test specimen of a corrugated metal plate formed without using the above-mentioned straightening roller, in which 1 is a forming roller, 2 is a corrugated metal plate, 3 is a straightening roller, and 4 is a detection means. , A is a setting means, and B is a control means.

Claims (1)

[Claims] 1 A vertically movable straightening roller disposed after the forming roller, a detection means for detecting passage of the corrugated metal sheet formed by the forming roller, and information regarding the width of each part in the longitudinal direction of the forming line of the corrugated metal sheet. It is equipped with a setting means for presetting data, and a control means for controlling the correction roller to be pressed against the corrugated metal plate when passing through a wide part or a narrow part based on the preset data and the output of the detection means. A forming device for a corrugated metal plate characterized by comprising: