JPS62270233A - Transfer device for press - Google Patents

Abstract

PURPOSE:To simplify the device composition and to facilitate the maintenance by composite the transfer device of a material as a motor driving and controlling the motor for the transfer device in relation to the crank angle position of a press a well. CONSTITUTION:The conveyor device 6 of a press and a turnover 7 are made to be driven by motors 8, 9 and rotation detecting gages 16, 16' are provided on the crank angle detecting gage 10 of the crank shaft of a press 6 and motors 8, 9 as well. Control devices 15, 15' have speed setting device 22, 22', controlling the motors 8, 9 according to the crank speed and angle position so that the movement completion of the pitch can be performed in the shortest time of the moving speed of the conveyor device 6. In this way, therefore, the composition of the device is simplified and the occupied space is reduced, so the maintenance becomes easy.

Description

[Detailed description of the invention] 3. Detailed description of the invention [Industrial application field] The present invention relates to a press conveyance device.

[Prior Art] Conventionally, a conveyance device that conveys and moves materials in connection with press work is generally mechanically driven in synchronization with the operation of the press by power taken out by a cam provided on the drive side of the press. It has become so.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional system, since the power is transmitted mechanically, the structure is complicated and requires a large amount of space. This causes heavy wear and tear, and maintenance is difficult.Moreover, since the transportation movement speed, stopping position, etc. are fixed, parts must be replaced if changes or adjustments are required. It is very troublesome to do so.

The present invention was made by focusing on the above-mentioned conventional problems.
The purpose is to simplify the drive structure of the press device for transporting materials, reduce the occupied space, facilitate maintenance, and enable arbitrary settings of the operational relationship between the press device and the conveyance device. .

[Means for solving the problems] The present invention attempts to solve the above technical problems, and
A conveying device for a press, characterized in that it is configured to drive a device for conveying material of the press device with a motor, and is provided with a control circuit that operates the motor in relation to the crank angle position of the press device. This is related to.

[Function] Therefore, in the present invention, the press conveyance device is driven by a motor, and the motor is operated via the control circuit in relation to the crank angle position of the press device, so that the operation of the press device and the conveyance device are controlled. The operating relationship can be set arbitrarily.

[Implementation example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of the present invention, in which a press device 5 is provided which presses a material with a press mold 4 through a clutch 2 and a crank 3 driven by a motor 1. The device 5 is provided with a conveyor device 6 for conveying the material and a turnover 7 for reversing the material on the conveyor device @6.

In the above configuration, the conveyor device 6 and the U-turnover 7 are configured to be driven by motors 8 and 9.

Next, a drive circuit for the conveyor device 6 will be explained.

A rotary cam type crank angle detector 10 is provided on the crankshaft of the press device 5, and from the crank angle signal 11, a setting signal 12 is used to determine at which angular position the conveyor device @6 is to be moved by one pitch. A setting device 13 for setting is provided, and a signal 1 of the setting and crank angular speed is provided.
4 is input to the control device 15.

Furthermore, a rotation detector (pulse generator) 16 is provided on the shaft of the drive motor 8 of the conveyor device 6, and the rotation speed detection signal is guided to a counter 17, and the position of the conveyor device 6 corresponding to one pitch movement length is determined. Striker 1 installed in
By providing a limit switch 19 operated by the limit switch 19 and guiding its signal to the counter 17, the moving speed of the conveyor device 6 is measured from the number of revolutions when the conveyor device 6 moves one pitch from the limit switch 19 ON. A speed signal 20 is input to the control device 15.

Further, the control device 15 is configured to control the moving speed of the conveyor device a6 according to the crank angular speed within the shortest time without causing material misalignment or mechanical impact, as shown in FIG. 2.3. A speed setting device 22 is provided which receives a signal 21 of a speed profile such that it is possible to effectively complete one pitch of movement.

Also, the control I! The device 15 outputs a control signal 23 to drive the motor 8 so that the conveyor device 6 is driven, stopped, and moved at the required speed according to the crank speed and angular position according to each of the signals 14, 20° 21. It is designed to control the drive of the

Furthermore, the drive circuit for the turnover 7 has the same structure except that a limit switch 19' is provided to detect the position of the turnover 7, and therefore the same components are denoted by a dash. )
The explanation will be omitted.

The control wJ device 15.15' also controls the control wJ device 15.15' when the signal 14.14' from the press device 5 and the signal 20.20' from the conveyor device 6 and turnover 7 deviate from a preset relationship. outputs an abnormality signal 24, 24', and the signal causes the solenoid valve 26 to be actuated via the OR circuit 25, thereby disengaging the clutch 2 and turning the crank 3.
Equipped with a safety circuit that can immediately stop operation.

As described above, the setting device 13 receives the crank angle signal 11 of the press device 5, and based on the crank speed and the setting signal 14, the conveyor device 6 outputs a command signal 14 indicating at which position on each crank the conveyor device 6 should move by one pitch. The counter 17, which receives signals from the rotation detector 16 and one limit switch of the conveyor device 6, inputs the measured speed signal 20 of the conveyor device 6 to the control device 15. The driving of the motor 8 is controlled by the control signal 23 so that the conveyor device 6 is operated in conjunction with the operation of the press device 5. Also, at this time, the control wJ device 15
The moving speed of the conveyor device 6 is controlled to be in an optimum state by the speed profile signal 21 from the speed setting device 22 inputted to the conveyor device 6 .

Further, the limit switch 19 is activated by a striker 18 provided on the conveyor device 6 according to the movement pitch.
The counter 17 may be reset each time the conveyor device 6 rotates once. Also, during the motion trajectory, the origin position can be confirmed by turning on the limit switch 19.

Furthermore, if an abnormality occurs in the device such that the operation of the press device 5 and the operation of the conveyor device 6 deviate from the predetermined relationship, the control device 15 will issue an abnormality signal 24 and immediately shut down the clutch. By cutting 2, crank 3
Therefore, accidents can be prevented or minimized.

Further, the turnover 7 is operated in exactly the same manner as the conveyor device 6.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be applied to various types of press conveying devices, and various modifications can be made without departing from the gist of the invention.

[Effects of the Invention] As described above, according to the press conveyance device of the present invention,
Since the conveyance device is driven by a motor, and the motor is operated in conjunction with the operation of the press device via a control circuit, the configuration of the device for driving the conveyance device is greatly simplified. This reduces the space occupied, facilitates maintenance, and allows for arbitrary selection of the operational relationship between the press device and the conveyance device.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing one embodiment of the present invention, and FIGS. 2 and 3 are explanatory diagrams showing an example of a speed profile in a speed setting device. 1 is a motor, 2 is a clutch, 3 is a crank, 4 is a press die, 5 is a press device, 6 is a conveyor device, 7 is a turnover, 8.9 is a motor, 10 is a crank angle detector, 13.13' is the setting device, 15°15' is the control device,
16.16' is a rotation detector, 17.17' is a counter,
18 is a striker, 19.19' is a limit switch,
22 is a speed setting device, 23.23' is a control signal, 24.
24' indicates an abnormal signal, and 26 indicates a solenoid valve.

Claims (1)

[Claims] 1) A conveyor for a press, characterized in that it is configured to drive a device for conveying the material of the press device by a motor, and is provided with a control circuit that operates the motor in relation to the crank angle position of the press device. Device.