The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 2021
Filed:
Aug. 02, 2019
Citic Dicastal Co., Ltd., Hebei, CN;
Zuo Xu, Qinhuangdao, CN;
Jinling Yang, Qinhuangdao, CN;
Li Yang, Qinhuangdao, CN;
Xiaoting Zhu, Qinhuangdao, CN;
Zhen Wang, Qinhuangdao, CN;
Weizhou Liu, Qinhuangdao, CN;
Yukun Yang, Qinhuangdao, CN;
Haifeng Li, Qinhuangdao, CN;
Zhiwei Yang, Qinhuangdao, CN;
CITIC Dicastal CO., LTD., Qinhuangdao, CN;
Abstract
A forging and inclined window hole punching composite die includes an upper die holder, a connection sleeve, an upper die sliding sleeve, a pressure plate, inclined window puncher pins, a center puncher pin, first connection screw rods, first springs, second connection screw rods, second springs, hydraulic assistant systems, a lower die and a bottom plate. Bottom surface of the pressure plate of the composite die is a plane to avoid deformation of a front molding surface. Hydraulic power is added to the inclined window puncher pins to increase the pressure for punching inclined holes, avoid quality problems and increase a demolding force. A multi-split synchronous hydraulic device may well realize synchronization of the plurality of inclined window puncher pins.