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AssigneesDenso Corporation, Denso Preas Co., Ltd.
InventorsFumio Kondo, Shoichi Takenouchi, Takayuki Nakanishi, Osamu Matsui
Estimating the term…
A plurality of press devices 2 are arranged in a plastic working system. The plastic working system includes: a loop correction sensor 13 for watching a slack of a coil material C intermittently delivered from a preceding first press device 2a; and a second slack watching means 19 for watching a slack of the coil material C generated at the time of sending the coil material C to a succeeding second press device 2b. According to the slack generated by intermittent feeding of the coil material C sent from the first press device 2a, intermittent feeding is converted to continuous feeding by the feeding means 15. At the same time, the continuous feeding speed is subjected to speed increasing/decreasing control. On the other hand, by the second slack watching means 19, a slack of the coil material C is watched at the time of feeding the coil material C to the second press device 2b and the preceding first press device 2a is subjected to speed increasing/decreasing control.
A plastic working system in which a coil material, which is a workpiece, is intermittently sent to a plastic working device and plastically worked, a plurality of plastic working devices are arranged and the coil material is worked by the plurality of plastic working devices in order, comprising:
A plastic working method in which when a coil material, which is a workpiece, is supplied to a plurality of plastic working devices and worked in order, the coil material worked by the preceding plastic working device is intermittently sent out, a slack of the coil material generated by intermittent feeding is watched and a feeding speed of the coil material is controlled or the system is completely stopped, and
A plastic working method in which when a coil material, which is a workpiece, is supplied to a plurality of plastic working devices and worked in order, the coil material worked by the preceding plastic working device is intermittently sent out, a slack of the coil material generated by intermittent feeding is watched and the feeding of the coil material is converted from intermittent feeding to continuous feeding and a feeding speed of the continuous feeding is controlled or the system is completely stopped, and
Dependencies are inferred from the claim text.