JP2000334518A - Multistage forming roll device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten roll changing time as the result of surely reproducing conditions before change by simply easily realizing the optimum position of the movable roll of a multistage forming rolls after change. SOLUTION: This device is the multistage forming roll device with which a planar work is stepwise roll-formed by arranging forming rolls 1, in multistage, which are provided with an upper fixed roll 1a and lower movable roll 1b which are paired and provided with a means for storing the position of the present state of the movable roll 1b of each forming roll 1 and control means for reproducing the position of the movable roll 1b by moving the movable roll 1b according to the data of the stored position of the present state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-stage forming roll device, and more particularly, to easily and easily reveal an optimum position of a movable roll of a multi-stage forming roll after replacement and reliably reproduce a situation before replacement. As a result, the present invention relates to a technique for shortening the roll exchange time and improving the yield and the like.

[0002]

2. Description of the Related Art Generally, in a multi-stage forming roll apparatus in which a pair of upper and lower fixed rolls and a movable roll are arranged in multiple stages and a plate-shaped work is roll-formed stepwise, a forming roll is generally used. The clearance adjustment is performed by moving the movable roll every time to set the interval. Such clearance adjustment is performed manually or automatically, and is a very complicated operation, but an important operation since it affects the product accuracy.

In a multi-stage forming roll apparatus, a work is passed between a fixed roll and a movable roll to perform stepwise forming to form, for example, a channel shape, an angle shape, and other various forming shapes. The fixed rolls and the movable rolls are worn. Worn fixed rolls and movable rolls are ground and reused. At the time of re-use, complicated clearance adjustment is performed from the beginning, which requires a great deal of labor and work time.

[0004] In addition, when the multi-stage molding roll device is removed and replaced with another multi-stage molding roll device in accordance with the change of the molding shape, a complicated clearance adjustment is similarly performed in the replaced multi-stage molding roll device. is there.

[0005]

By the way, after adjusting the clearance in the replaced multi-stage forming roll device, a test work is performed to confirm whether or not the molding is performed in a predetermined molding shape. Will be reduced. Further, when the trial work is performed on another line, a separate trial line is required.

The present invention has been made in view of such a problem, and when the multi-stage forming roll removed during the molding is re-attached due to a change in the molding shape, the optimum position of the movable roll can be easily and easily determined. It is possible to reliably reproduce the situation before it appeared and replaced, without the need for complicated clearance adjustment, and as a result, shortening the roll exchange time and eliminating test work, improving yield, and It is an object of the present invention to provide a multi-stage forming roll device that does not require a test line.

[0007]

According to a first aspect of the present invention, a forming roll 1 having a pair of upper and lower fixed rolls 1a and a movable roll 1b is arranged in multiple stages to roll a plate-like work stepwise. A multi-stage molding roll device for molding, comprising means for storing the current position of the movable roll 1b of each molding roll 1, and moving the movable roll 1b according to the stored current position data. It is characterized by comprising control means for reproducing the position.

According to such a configuration, for example, when a roll is changed due to a change in the molding shape, the current position of the movable roll 1b with respect to the fixed roll 1a of each molding roll 1 of the multistage molding roll to be removed. When the multi-stage forming roll device storing the current position is used again, the position of the movable rail 1b with respect to the fixed roll 1a in each forming roll 1 is stored. Therefore, it is not necessary to perform complicated clearance adjustment for the exchanged multi-stage molding roll device as in the conventional case, the clearance adjustment work can be omitted, and the movable roll 1b The optimal position can be reproduced, so the test process can be omitted or greatly reduced. It can be reduced.

For example, when a multi-stage forming roll device requiring grinding is removed, for example, when the number of formed sheets reaches a predetermined number, the current position of the movable roll 1b with respect to the fixed roll 1a in each forming roll 1 is stored. Let it be
When the fixed roll 1a and the movable roll 1b have been ground and reused, the position of the movable rail 1b with respect to the fixed roll 1a is reproduced based on the stored data. Even in the case of a multi-stage forming roll device, complicated clearance adjustment work as in the related art can be omitted, and furthermore, the number of test steps can be greatly reduced, and the number of test lines can be reduced.

According to a second aspect of the present invention, the position of the movable roll 1b is measured based on a zero point at which the movable roll 1b is brought into contact with the fixed roll 1a. According to such a configuration, for example, when removing the multi-stage forming roll device that requires grinding, for example, when the number of formed sheets reaches a predetermined number, the fixed roll 1a in which the predetermined molding is performed before the removal is performed. The position of the movable roll 1b with respect to the fixed roll 1a is stored on the basis of the zero point at which the movable roll 1b is brought into contact with the fixed roll 1a.
By setting the position of the movable roll 1b according to the stored data with reference to the position at which the movable roll 1b abuts on a, the clearance before grinding can be set.

Incidentally, it is preferable that the operation of lifting and lowering the movable roll 1b for measuring the position of the movable roll 1b can be performed manually or electrically, and the multi-stage forming rolls 1 are blocked. Is preferable.

[0012]

Embodiments of the present invention will be described below. 1 is a front view of a main part, FIG. 2 is a side view of the main part, FIG.
Is an overall plan view, and FIG. 4 is an overall side view.

As shown in FIGS. 3 and 4, for example, after a driving unit 2 for introducing and driving a flat plate as a work, for example, 1
No. 2, No. 20 to No. 20 forming rolls 1 ... roll stand 3
... and are disposed at appropriate intervals. Such a multi-stage forming roll 1... Is designed so as to form a roll flower with a fixed roll 1 a below and a movable roll 1 b above, and is made of lightweight steel, pipe material, plate material, sheet pile, sash, and the like. The material is roll-formed.

As shown in FIG. 1, a roll shaft 6a having a fixed roll 1a mounted on a roll stand 3 has left and right bearings 4,
The roll shaft 6b to which the movable roll 1b is attached is rotatably supported by the rotary shaft 4, and is supported by the left and right rotary shafts 5 and 5 via the elevator 16 so as to be movable up and down.
The roll shaft 6a of the fixed roll 1a and the roll shaft 6b of the movable roll 1b are driven to rotate by a rotation drive unit 8 via universal joints 7,7.

As shown in FIGS. 5 and 6, a worm shaft 11 is connected via a coupling 12 to an output shaft 10 which is reduced in speed by a geared motor 9 and rotated at low speed. 13 meshes with a worm wheel 14 formed on the rotating shaft 5, for example, about 1
The rotation shaft 5 can be driven to rotate at a reduction ratio of / 16. The rotary shaft 5 is provided with a male screw 15 to hold the roll shaft 6b of the movable roll 1b.
To move up and down the movable roll 1b. Specifically, for example, one rotation of the rotating shaft 5 raises and lowers about 2 mm. It goes without saying that the left and right rotation shafts 5 and 5 of the roll shaft 6b are driven and rotated in synchronization.

As shown in FIG. 2, a rotary plate 19 formed with three sensor dogs 18 in the circumferential direction is attached to the output shaft 10 which is driven at a reduced speed. The sensors S1 and S2 are attached to the locations.

The handle shaft 17 is connected to the worm shaft 11 on the opposite side of the output shaft 10 and a handle shaft 17 is extended. By connecting a handwheel (not shown) to the handle shaft 17, the rotation shaft 5, 5 to rotate the movable roll 1b
Roll shaft 6b can be raised and lowered.

According to such a configuration, when the precision of the product is in the acceptable range but decreased due to the number of moldings reaching a predetermined number, etc., and it is recognized that the fixed roll 1a and the movable roll 1b need to be ground, Alternatively, in a case where roll exchange is performed by changing the molding shape, the current position of the movable roll 1b with respect to the fixed roll 1a in each molding roll 1 is stored in the multistage molding roll to be removed.

Specifically, in the state where the threading is completed, the worm shaft 11 is driven by the geared motor 9 or manually operated by connecting a handwheel (not shown) to the handle shaft 17. The rotating shaft 5 is rotated through the movable roller 1b held by the lift 16
The movable roll 1b is brought into contact with the fixed roll 1a by lowering the roll shaft 6b. In such an operation, the rotating plate 19 rotates together with the rotation of the worm shaft 11 and the dog 18
Detects the position of the movable roll 1b with respect to the fixed roll 1a at the time of molding by detecting and calculating the number of pulses oscillated each time the sensor S1 is kicked, and stores the data as data in the control unit 21 such as a personal computer. It is. Such position detection of the movable roll 1b is 0.025.
It can be performed with an accuracy of about mm. Sensor S1
The accuracy can be increased to about 0.015 mm by the number of the elements. Incidentally, the sensors S1 and S2 detect the right or left rotation of the rotary plate 19 to detect the lowering or rising of the roller shaft 6b.

In the multi-stage forming roll apparatus, for example, the current clearance between the fixed roll 1a and the movable roll 1b, which are being formed, is set by the control unit 21 in each of the 20 forming rolls 1. I remember.

When the multi-stage forming roll device storing the current position in this way is used again, each forming roll 1
For example, the geared motor 9 is driven by the control signal from the control unit 21 such as a personal computer to reproduce the position based on the stored data of the position of the movable rail 1b with respect to the fixed roll 1a. Needless to say, such reproduction of the clearance is performed for each forming roll 1.

Therefore, it is not necessary to perform complicated clearance adjustment for the replaced multi-stage molding roll device as in the conventional case, and the clearance adjustment operation can be omitted, and the optimum position of the movable roll 1b can be reproduced. Because it is possible, the test process can be omitted or can be greatly reduced.
This reduces the number of test lines.

When removing the multi-stage forming roll device requiring grinding, the fixing roll 1a of each forming roll 1 is removed.
The current position of the movable roll 1b with respect to the fixed roll 1a and the movable roll 1b.
When reusing after finishing the grinding, the position of the movable rail 1b with respect to the fixed roll 1a is reproduced based on the stored data. This eliminates the need for complicated clearance adjustment work as in the related art, and further reduces the number of test-testing steps and the number of test-test lines.

Incidentally, it is preferable that the operation of raising and lowering the movable roll 1b for measuring the position of the movable roll 1b can be performed manually or electrically, and that the multi-stage forming rolls 1 are blocked. Is preferable.

[0025]

According to the first aspect of the present invention, there is provided a multi-stage forming roll apparatus for arranging forming rolls having a pair of upper and lower fixed rolls and movable rolls in multiple stages, and forming a plate-shaped work stepwise. There is a means for storing the current position of the movable roll of each forming roll, and a control means for moving the movable roll according to the stored current position data to reproduce the position of the movable roll. For example, in the case of performing a roll exchange by changing a molding shape, in a multistage molding roll to be removed, the current position of a movable roll with respect to a fixed roll in each molding roll is stored. When the multi-stage molding roll device that stores the position of the movable roll is used again, the position of the movable rail with respect to the fixed roll in each molding roll is stored. Therefore, it is not necessary to perform complicated clearance adjustment for the replaced multi-stage forming roll device as in the past, and the clearance adjustment work can be omitted, and furthermore, the movable Since the optimal position of the roll can be reproduced,
There is an advantage that the test process can be omitted or greatly reduced, and the test line can be reduced.

Further, for example, when removing the multi-stage forming roll device that requires grinding, for example, when the number of formed sheets reaches a predetermined number, the current position of the movable roll with respect to the fixed roll in each forming roll is stored. And when the fixed roll and the movable roll are ground and reused, the position of the movable rail with respect to the fixed roll is reproduced based on the stored data. For forming roll devices,
There is an advantage that a complicated clearance adjustment operation as in the related art can be omitted, and furthermore, the number of test steps can be greatly reduced, and the number of test lines can be reduced.

In the second aspect, the position of the movable roll is measured with reference to a zero point at which the movable roll is brought into contact with the fixed roll. When removing the multi-stage forming roll device that required grinding after reaching the number, the position of the movable roll with respect to the fixed roll where the fixed roll was formed as specified before removal was applied to the fixed roll. It is stored based on the zero point to be in contact with, and by setting the position of the movable roll according to the stored data based on the position where the movable roll comes into contact with the fixed roll after grinding the fixed roll and the movable roll. In addition, there is an advantage that the clearance can be set according to the clearance before the grinding.

[Brief description of the drawings]

FIG. 1 is a front view of a main part according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an overall plan view of the same.

FIG. 4 is an overall side view of the same.

5A is a partial plan view, and FIG. 5B is a side view.

FIG. 6 is a partially broken front view of the same.

FIG. 7 is a block circuit diagram of the same.

[Explanation of symbols]

 1 forming roll 1a fixed roll 1b movable rail

Claims (4)

[Claims] 1. A multi-stage forming roll device for forming a plate-shaped work stepwise by arranging forming rolls having a pair of upper and lower fixed rolls and movable rolls in multiple stages, wherein each forming roll Characterized by comprising means for storing the current position of the movable roll, and control means for moving the movable roll according to the stored current position data to reproduce the position of the movable roll. Roll device. 2. The multi-stage forming roll apparatus according to claim 1, wherein the position of the movable roll is measured based on a zero point at which the movable roll comes into contact with the fixed roll. 3. The multi-stage molding roll apparatus according to claim 2, wherein the operation of lifting and lowering the movable roll for measuring the position of the movable roll can be performed manually or electrically. 4. The multi-stage forming roll apparatus according to claim 1, wherein the multi-stage forming roll is formed into a block.