Press device, and transport motion setting method and transport motion setting program of press device

Patent metadata

Field	Value
Publication number	US-11273614-B2
Application number	US-202016896410-A
Country	US
Kind code	B2
Filing date	Jun 9, 2020
Priority date	Jun 11, 2019
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

There is provided a press device including a reference operation setting unit that sets a reference transport motion of a transport device which corresponds to a predetermined reference press motion of the slide, a timing setting unit that sets a synchronous timing of the reference transport motion for the reference press motion, a press operation setting unit that sets a press motion of an actual operation by extending a time of a part of the reference press motion, and a transport operation setting unit that sets a transport motion of the actual operation which corresponds to the press motion by matching synchronous timings with each other between the press motion and the reference transport motion for the reference press motion, and by setting an operation pattern from the synchronous timing to be the same as that of the reference transport motion.

First claim

What is claimed is:

1. A press device comprising:
a slide attached a die configured to press form a forming material;
a transport device configured to transport the forming material, the slide and the transport device being linked with each other;
a reference operation setting unit configured to set a reference transport motion of the transport device which corresponds to a predetermined reference press motion of the slide;
a timing setting unit configured to set a synchronous timing of the reference transport motion for the reference press motion;
a press operation setting unit configured to set a press motion of an actual operation by extending a time of a part of the reference press motion; and
a transport operation setting unit configured to set a transport motion of the actual operation which corresponds to the press motion by matching synchronous timings with each other between the press motion and the reference transport motion for the reference press motion, and by setting an operation pattern from the synchronous timing to be the same as that of the reference transport motion.

2. The press device according to claim 1 ,
wherein the timing setting unit is configured to set, as the synchronous timing, a timing at which the slide passes through a bottom dead center and ascends to a predetermined position where the slide does not interfere with the transport device.

3. The press device according to claim 1 ,
Wherein the reference operation setting unit is configured to set the reference transport motion so that the transport device starts a transport operation when the slide passes through a bottom dead center and ascends to a predetermined position where the slide does not interfere with the transport device, and so that the transport device completes the transport operation before the slide subsequently descends to a position where the slide interferes with the transport device.

4. The press device according to claim 3 ,
wherein the press operation setting unit is configured to set the press motion by extending a time of a portion in the reference press motion, which corresponds to a portion until the transport device starts the transport operation again after the transport device completes the transport operation in the reference transport motion.

5. The press device according to claim 1 ,
wherein the slide is driven by a servomotor connected via a rotary shaft that causes the slide to reciprocate.

6. A transport motion setting method for a press device by a control unit of the press device comprising:
setting a reference transport motion of a transport device which corresponds to a predetermined reference press motion of a slide, the slide attached a die configured to press form a forming material, the transport device being configured to transport the forming material, the slide and the transport device being linked with each other;
setting a synchronous timing of the reference transport motion for the reference press motion;
setting a press motion of an actual operation by extending a time of a part of the reference press motion; and
setting a transport motion of the actual operation which corresponds to the press motion by matching synchronous timings with each other between the press motion and the reference transport motion for the reference press motion, and by setting an operation pattern from the synchronous timing to be the same as that of the reference transport motion.

7. A computer readable medium storing a transport motion setting program of a press device causing a control unit of the press device to function as:
a reference operation setting unit configured to set a reference transport motion of a transport device which corresponds to a predetermined reference press motion of a slide, the slide attached a die configured to press form a forming material, the transport device being configured to transport the forming material, the slide and the transport device being linked with each other;
a timing setting unit configured to set a synchronous timing of the reference transport motion for the reference press motion;
a press operation setting unit configured to set a press motion of an actual operation by extending a time of a part of the reference press motion; and
a transport operation setting unit configured to set a transport motion of the actual operation which corresponds to the press motion by matching synchronous timings with each other between the press motion and the reference transport motion for the reference press motion, and by setting an operation pattern from the synchronous timing to be the same as that of the reference transport motion.

Assignees

• Sumitomo Heavy Industries

Inventors

• Onishi Seiki

Classifications

• B30B15/14

  Control arrangements for mechanically-driven presses · CPC title

• B30B15/30

  Feeding material to presses · CPC title

• B30B15/146 Primary

  for synchronising a line of presses · CPC title

• B21J9/20

  Control devices specially adapted to forging presses not restricted to one of the preceding subgroups · CPC title

• B30B15/26

  Program-control arrangements · CPC title