JP2932018B2 - Automatic material insertion method for high-speed press machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically inserting a material into a high-speed press machine, and more particularly, to a high-speed press machine using a mechanical feeder as a feed device, when starting operation with a new material, the leading end of the material is The present invention relates to a method for automatically inserting a plurality of processing positions in a mold.

[0002]

2. Description of the Related Art Generally, in a high-speed press machine, a mechanical feeder which is arranged in a material path line and is suitable for high-speed feeding as a feed device for intermittently feeding a material to a processing position in a mold, that is, A mechanical feeder such as a roll feeder or a gripper feeder that performs a feeding operation in conjunction with a crankshaft of a press machine body is used.

[0003] The high-speed press machine further includes an independent drive forcible release mechanism. This forcible release mechanism is used when starting operation with a new material or the like. This is to disable the operation. In other words, the forced release mechanism uses an air cylinder or the like as a drive source, forcibly widens the interval between the upper roll and the lower roll when the mechanical feeder is, for example, a roll feeder, and maintains an open state. The feed operation is invalidated even when linked to the shaft, and the leading end of a new material can be inserted between the upper roll and the lower roll in the open state and set at the processing position.

Conventionally, in a high-speed press machine incorporating a mechanical feeder as described above, a method of inserting a new material into a plurality of processing positions in a mold is usually performed by the following methods 1) to 8).
Of a series of steps.

1) A step of operating the forced release mechanism by operating a switch while the slide of the press machine body is held at the top dead center position, and holding the mechanical feeder in the open state. 2) The mechanical state in the open state. The process of passing the tip of a new material through the material path line in the feeder and sending it to a position just before a plurality of processing positions in the mold.This material feeding is usually performed by actuating a leveler arranged on the upstream side of the mechanical feeder. It is performed by stopping.

3) A step in which the operator grips the tip of the material in front of the processing position by hand and sets it at the first processing position among a plurality of processing positions. 4) Pressing at the first processing position by the inching stroke or microinching. Process 5) After the above-mentioned press working, the operator grasps the tip of the material by hand and sets it to the second working position. 6) Presses at the second working position by inching stroke or micro inching. 7) Step of repeating the above 5) and 6) up to the final processing position 8) Step of releasing the forced release mechanism by switch operation of the operator

[0007]

However, according to the above-described conventional material insertion method, the operator sets each processing position while grasping the tip of the material by hand.
There are problems that the operation becomes complicated and it takes a long time to complete the material insertion. In particular, when the press machine body is a type having a front door, the front door must be opened and closed for each press at each processing position,
The work became more complicated and took a long time.

An object of the present invention is to make it possible to automatically insert a material by paying attention to the above-mentioned problems, thereby reducing the labor and time required for the insertion operation.

[0009]

In order to solve the above problems, a method for automatically inserting a material of a high-speed press machine according to the present invention includes a mechanical feeder arranged on a material path line, and an independently driven forced release mechanism. The mechanical feeder intermittently feeds a material to a plurality of processing positions in a mold in conjunction with a press machine main body, and the forced release mechanism is configured to invalidate the feed operation of the mechanical feeder. In the high-speed press machine, the independent feeder independently driven, a single release mechanism of the single feeder, a stopper, a control circuit, and a press controller, the single feeder the mechanical feeder in the material pass line and Adjacent to each other, the independent release mechanism is independently driven, and Chromatography is disposed downstream of the single feeder of the material pass line, also, the control circuit the forced release mechanism, said single feeder,
The press release controller is configured to control each of the single release mechanism and the stopper and transmit and receive the press release to and from the press controller.The press controller is configured to control the operation of the press machine body, and 1) operates the stopper. 2) a step of operating the forcible release mechanism and the independent release mechanism, respectively; 2) a step of releasing the independent release mechanism and returning the stopper when the material front end reaches the position of the stopper; 3) Operating and stopping the single feeder, and setting the tip end of the material at the first processing position; 4) after pressing at the first processing position, repeatedly operating and stopping the single feeder to stop the tip of the material. Of sequentially feeding the part to the second and subsequent processing positions with press working And 5) a step of releasing the forcible release mechanism and activating the single release mechanism.

[0010]

According to the above-mentioned step 1), the mechanical feeder and the single feeder are respectively kept in the open state, and thereafter, the tip of a new material can be inserted into the mechanical feeder and the single feeder.

According to the above step 2), a new material is clamped in the single feeder, and the material can be fed by the single feeder.

According to the above step 5), the material can be fed by the mechanical feeder, and the single feeder does not hinder the material feed by the mechanical feeder.

[0013]

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

First, a system for carrying out the automatic material insertion method according to the present embodiment will be described with reference to FIG.

This system comprises a high-speed press machine body 1, a mechanical feeder 2, a forced release mechanism 3, a single feeder 4, a single release mechanism 5, a leveler 6, a stopper 7, a first position sensor 8, a second position sensor 9, and a rotation. A sensor 10, a start switch 11, a punch number setting device 12, a control circuit 13, and a press controller 14 are main components.

A mold 15 having a plurality of processing positions is set in the main body 1 of the high-speed press machine.

The mechanical feeder 2 is disposed on a material path line 16 and is provided with a crankshaft 17 of the press machine body 1.
The material 18 is intermittently fed to a plurality of processing positions of the mold 15 in conjunction with the operation. The mechanical feeder 2 includes, for example, a roll feeder or a gripper feeder.

The forcible release mechanism 3 is a release mechanism that is separate from a normal release mechanism for the mechanical feeder 2, that is, a release mechanism that releases in conjunction with the crankshaft 17, and is an independent drive source such as an air cylinder. Driven by the mechanical feeder 2
Invalidate the feeding operation of. For example, when the mechanical feeder 2 is a roll feeder, the forcible release mechanism 3 forcibly widens the interval between the upper roll 2a and the lower roll 2b, so that the mechanical feeder 2 is effective even if the mechanical feeder 2 is operating. So that it is not possible to carry out a feeding operation.

The single feeder 4 is provided with a material pass line 16
And an NC roll feeder, which is disposed adjacent to the mechanical feeder 2 and is driven by an independent drive source 20 such as a stepping motor. As will be described later, the single feeder 4 intermittently feeds the material 18 when setting the material 18 to a plurality of processing positions in the mold 15 in order to start operation with a new material 18.

The single release mechanism 5 includes the single feeder 4
And is driven by an independent drive source 21 such as an air cylinder.

The leveler 6 is a known leveler 6 disposed downstream of an uncoiler, not shown, and uses a motor as a drive source 22.

The stopper 7 is usually arranged below the material path line 16 between the material feeding side of the single feeder 4 and the material insertion side of the mechanical feeder 2, and rises with an air cylinder or the like as a driving source 23 and moves up the material path line. 16 can be shut off.

The first position sensor 8 is composed of, for example, a photoelectric switch, and is arranged in front of the stopper 7 and is a sensor for detecting that the tip of the material 18 has come near the stopper 7.

The second position sensor 9 comprises, for example, a photoelectric switch, is arranged near the material path line 16 between the leveler 6 and the single feeder 4, and the tip of the material 18 is sent from the leveler 6 to the single feeder 4. It is a sensor for detecting that it is on the way.

The rotation sensor 10 is, for example, an encoder, and is a sensor for detecting a rotation angle of the crankshaft 17.

The start switch 11 is a switch operated by an operator to instruct automatic material insertion.

When the number of processing positions of the mold 15 is “N”, the operator sets the number of punches to “N + 1”.
Is a setting device operated when inputting settings.

The control circuit 13 receives the signals from the punch number setting device 12, the start switch 11, the first position sensor 8, the second position sensor 9 and the rotation sensor 10 as will be described later. , The single feeder 4, the single release mechanism 5, the leveler 6, and the stopper 7 are controlled. The control circuit 13 includes a press controller 14
To output a control signal.

The press controller 14 controls the operation of the press machine main body 1 and controls, for example, connection and disconnection of the clutch 24.

Next, an automatic material insertion method using the above system will be described in order with reference to FIGS. Note that the number of processing positions of the mold 15 is “3”.

(1) With the slide 25 held at the top dead center position, the operator operates the punch number setting device 12 to input a numerical value “4” and sets the tip of the new material 18 to the leveler 6. Set to. The control circuit 13 sets the input numerical value “4” in the soft counter.
In this state, the mechanical feeder 2, the single feeder 4, the leveler 6, and the stopper 7 are all inactive (see FIG. 2A).

(2) Thereafter, the operator turns on the start switch 11. The control circuit 13 outputs a drive signal to the motor 22 of the leveler 6 when an ON signal is input from the start switch 11. Thereby, the motor 2
2 rotates, the pinch roll 26 of the leveler 6 is rotated, and the leading end of the material 18 is sent at a low speed toward the single feeder 4.

(3) When the tip of the material 18 passes near the second position sensor 9, for example, near the photoelectric switch, the photoelectric switch 9 outputs a detection signal to the control circuit 13. Upon receiving this detection signal, the control circuit 13 outputs a drive signal to the drive source 19 of the forced release mechanism 3 such as an air cylinder, and outputs a drive signal to the drive source of the independent release mechanism 5 such as an air cylinder. And outputs a drive signal to a drive source 23 of the stopper 7, for example, an air cylinder. As a result, the mechanical feeder 2 is forcibly held in the released state, the single feeder 4 is held in the released state, the stopper 7 is raised, and the material path line 16 is kept in the closed state (FIG. 2 (2) )reference).

As described above, both the mechanical feeder 2 and the single feeder 4 are held in the released state, so that the leading end of the material 18 passes through the material path line 16 in the mechanical feeder 2 and the single feeder 4. It becomes possible to do.

(4) Thereafter, when the leading end of the material 18 reaches the vicinity of the stopper 7, the first position sensor 8, for example, a photoelectric switch outputs a detection signal to the control circuit 13. When receiving this detection signal, the control circuit 13 stops outputting the drive signal of the independent release mechanism 5 to the air cylinder 21. As a result, the release state of the single feeder 4 is released, and the material 18 is clamped (see FIG. 2 (3)).

(5) After the single feeder 4 clamps the material 18 as described above, the control circuit 13 stops outputting the drive signal of the stopper 7 to the air cylinder 23. As a result, the stopper 7 returns to a position below the material path line 16. On the other hand, the material 18 is clamped by the single feeder 4 as described above, so that a loop is formed between the delivery side of the leveler 6 and the insertion side of the single feeder 4 (see FIG. 3 (4)). ).

(6) When a predetermined time has elapsed since the output of the drive signal to the air cylinder 21 of the single release mechanism 5 has been stopped as described above, the control circuit 13 controls the drive source 20 of the single feeder 4 such as stepping. Outputs a drive signal to the motor. Here, the predetermined time corresponds to a time required from when the single feeder 4 clamps the material 18 to when a desired material loop is formed, and is a preset time. The stepping motor 20 receiving the driving signal rotates by a predetermined angle, whereby the upper and lower rolls 2a and 2b rotate by a predetermined angle, and the material 18 is moved to the mold
It is sent to the first processing position in and stopped (see FIG. 3 (5)).

(7) The control circuit 13 transmits an operation command signal to the press controller 14. The press controller 14 receiving the command signal connects the clutch 24. As a result, the slide 25 descends, presses at the first processing position (see FIG. 3 (6)), and moves up. Then, the press controller 14 controls the clutch 24
The slide 25 is stopped at the top dead center by shutting off the slide. The press controller 14 transmits a first press working end signal to the control circuit 13 immediately after the clutch 24 is disconnected.

(8) The control circuit 13 which has received the first press working end signal outputs a drive signal to the stepping motor 20 of the single feeder 4 again for feeding the material. The stepping motor 20 rotates the upper and lower rolls 2a and 2b by a predetermined angle, and the leading end of the material 18 is fed to the second processing position and stopped (see FIG. 4 (7)). On the other hand, the content of the counter is decremented to "3".

(9) The control circuit 13 transmits an operation command signal to the press controller 14 again. The press controller 14 receiving the command signal connects the clutch 24. As a result, the slide 25 descends, performs press working at the first working position and the second working position (see FIG. 4 (8)), and moves up. Then, the press controller 14 stops the slide 25 at the top dead center by disconnecting the clutch 24 or the like. Press controller 14
Transmits a second press end signal to the control circuit 13 immediately after the clutch 24 is disconnected.

(10) The control circuit 13 which has received the second press end signal outputs a third drive signal to the stepping motor 20 of the single feeder 4 for feeding the material. The stepping motor 20 includes the upper and lower rolls 2
a and 2b are rotated by a predetermined angle, and the leading end of the material 18 is fed to the final processing position and stopped (see FIG. 4 (9)). On the other hand, the content of the counter is decremented to "2".

(11) The control circuit 13 transmits a third operation command signal to the press controller 14. Upon receiving this command signal, the press controller 14 controls the clutch 2
4 is connected. As a result, the slide 25 descends, performs press working at the first processing position, the second processing position, and the final processing position (see FIG. 5 (10)), and moves up.
Then, the press controller 14 stops the slide 25 at the top dead center by disconnecting the clutch 24 or the like. The press controller 14 transmits a third press working end signal to the control circuit 13 immediately after the clutch 24 is disconnected.

(12) Upon receiving the third press working end signal, the control circuit 13 outputs a fourth drive signal to the stepping motor 20 of the single feeder 4 for feeding the material 18. The stepping motor 20 rotates the upper and lower rolls 2a and 2b by a predetermined angle, and the leading end of the material 18 is fed to the end of the final processing position and stopped (FIG. 5 (11)).
reference). On the other hand, the content of the counter is decremented to "1".

(13) The control circuit 13 transmits a fourth operation command signal to the press controller 14. Upon receiving this command signal, the press controller 14 controls the clutch 2
The slide 25 is stopped at the bottom dead center position by connecting, disconnecting, and the like. Then, the press controller 14 transmits a fourth press working end signal to the control circuit 13.

(14) Upon receiving the fourth press working end signal, the control circuit 13 outputs a drive signal to the air cylinder 21 of the single release mechanism 5 and a drive signal to the air cylinder 19 of the forced release mechanism 3. Stop output. As a result, the single feeder 4 is released, and the forced release state of the mechanical feeder 2 is released (see FIG. 5 (12)). On the other hand, the content of the counter is reset to “0”.

(15) The control circuit 13 transmits a fifth operation command signal to the press controller 14. The press controller 14 that has received this command signal operates the slide 2
Stop 5 at top dead center. While the slide 25 is returning to the top dead center, the mechanical feeder 2 performs a feeding operation in conjunction with the crankshaft 17, and the leading end of the material 18 is fed further to the final machining position and stopped ( Fig. 6 (1
3)).

As is clear from the above description, the automatic material insertion method according to the present embodiment includes: 1) a step of operating the stopper 7 and simultaneously operating the forcible release mechanism 3 and the independent release mechanism 5; When the tip reaches the position of the stopper 7, the step of releasing the single release mechanism 5 and returning the stopper 7, 3) Activating and stopping the single feeder 4 and setting the tip of the material 18 to the first processing position. 4) After the press working at the first working position, the single feeder 4 is repeatedly operated and stopped, and the leading end of the material 18 is sequentially fed to the second and subsequent working positions with the press working interposed therebetween. A) a step of releasing the forcible release mechanism 3 and activating the single release mechanism 5.

Therefore, according to the present embodiment, the material can be automatically inserted, so that the work labor can be reduced and the work time can be shortened.

[0049]

As is clear from the above description, according to the present invention, it is possible to reduce the work labor and work time for inserting a new material into a plurality of processing positions in a mold.

[Brief description of the drawings]

FIG. 1 is a system diagram for implementing an automatic material insertion method according to one embodiment.

FIG. 2 is a process diagram of (1) to (3) showing the automatic material insertion method.

FIG. 3 is a process diagram of (4) to (6) showing the automatic material insertion method.

FIG. 4 is a process chart of (7) to (9) showing the method for automatically inserting the same material.

FIG. 5 is a process chart of (10) to (12) showing the method for automatically inserting the same material.

FIG. 6 is a process diagram (13) showing the method for automatically inserting the same material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High speed press machine main body 2 Mechanical feeder 3 Forced release mechanism 4 Single feeder (NC roll feeder) 5 Single release mechanism 7 Stopper 13 Control circuit 14 Press controller 15 Die 16 Material pass line 18 Material

Claims (1)

(57) [Claims] 1. A mechanical feeder disposed on a material path line, and an independently driven forced release mechanism,
The mechanical feeder intermittently feeds the material to a plurality of processing positions in the mold in conjunction with the press machine body, and
In the high-speed press machine, wherein the forced release mechanism is configured to invalidate the feeding operation of the mechanical feeder, an independently driven single feeder, a single release mechanism of the single feeder, a stopper, a control circuit, A press controller, wherein the single feeder is disposed adjacent to the mechanical feeder on the material pass line, the single release mechanism is independently driven, and the stopper is provided by the single feeder of the material pass line. Is also arranged downstream, the control circuit is configured to control each of the forced release mechanism, the single feeder, the single release mechanism and the stopper and to transmit and receive between the press controller, The press controller is a press machine 1) a step of activating the stopper and activating the forcible release mechanism and the independent release mechanism, respectively.2) When the material front end reaches the stopper position, Releasing the single release mechanism and returning the stopper; 3) operating and stopping the single feeder, setting the material front end to the first processing position; 4) pressing at the first processing position After the processing is completed, the single feeder is repeatedly operated and stopped, and the material leading end is sequentially fed to the second and subsequent processing positions with press working interposed therebetween. 5) The forced release mechanism is released and the single release mechanism is released. A method for automatically inserting a material of a high-speed press machine, comprising a series of steps of: