US 12,459,029 B2
Press system and control method of press system
Kazuki Nakazawa, Kanagawa (JP); and Akira Utsumi, Kanagawa (JP)
Assigned to AMADA CO., LTD., Kanagawa (JP); and AMADA PRESS SYSTEM CO., LTD., Kanagawa (JP)
Appl. No. 18/271,500
Filed by AMADA CO., LTD., Kanagawa (JP); and AMADA PRESS SYSTEM CO., LTD., Kanagawa (JP)
PCT Filed Jan. 17, 2022, PCT No. PCT/JP2022/001337
§ 371(c)(1), (2) Date Jul. 10, 2023,
PCT Pub. No. WO2022/158414, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 2021-008544 (JP), filed on Jan. 22, 2021.
Prior Publication US 2024/0058856 A1, Feb. 22, 2024
Int. Cl. B21D 43/09 (2006.01)
CPC B21D 43/09 (2013.01) 10 Claims
OG exemplary drawing
 
1. A press system comprising:
a holding device configured to hold a coil material;
a press machine configured to perform progressive stamping press in which several stamping actions are performed in a plurality of stages; and
a feeding device configured to feed the coil material held by the holding device to the press machine, wherein
the feeding device includes rolls configured to convey the coil material to the press machine in a closed state in which the coil material is clamped therebetween and be brought into an open state in which the coil material is released when stamping by the press machine is started,
the press machine includes:
load detection means configured to detect a load at a time of the stamping;
a pin configured to be inserted into a hole pierced in the coil material for positioning at the time of the stamping; and
control means configured to control the feeding device and the press machine to perform the stamping in coordination with each other, and
the control means which controls the feeding device for switching the rolls from the closed state to the open state at a timing before the load is detected by the load detection means, wherein the timing is based on a length of the pin.