- Patent Title: Variable pulsating, gap control, auto-learning press cushion device
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Application No.: US17410120Application Date: 2021-08-24
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Publication No.: US11701700B2Publication Date: 2023-07-18
- Inventor: Ethan McLaughlin , Richard Miller , Steven Reilly , Michael Culbertson , Russ Sasak
- Applicant: Barnes Group Inc.
- Applicant Address: US CT Bristol
- Assignee: BARNES GROUP INC.
- Current Assignee: BARNES GROUP INC.
- Current Assignee Address: US CT Bristol
- Agency: Ulmer & Berne LLP
- Agent Brian E Turung
- Main IPC: B21D24/14
- IPC: B21D24/14 ; B21D24/02

Abstract:
A controllable force cushion device that can be programmed to provide a variable and/or pulsating force that can be used in any application where force control is desirable. The frequency of the pulsation can be adjusted to suit different applications and/or circumstances (e.g., forming of sheet metals in die applications, etc.). The cushion can comprise one or more manifolds containing hydraulic cylinders that can be compressed during operation pushing fluid through a proportional relief valve that can be controlled by a motion control device, thereby creating a desired force. Material (e.g., sheet metal, etc.) flow can be controlled by using a gap control method. In use, the variable pulsating, gap control, auto-learning press cushion device of the present invention can optionally be mounted to the underside of a press bolster and can be used in conjunction with a stamping press.
Public/Granted literature
- US20220008979A1 VARIABLE PULSATING, GAP CONTROL, AUTO-LEARNING PRESS CUSHION DEVICE Public/Granted day:2022-01-13
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