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Title:
STAMPING DIE FOR BASIC LID OF PRESSURE-RESISTANT TYPE EASY OPEN LID
Document Type and Number:
WIPO Patent Application WO/2022/083692
Kind Code:
A1
Abstract:
A stamping die for a basic lid of a pressure-resistant type easy open lid. A lower die (2) mainly comprises a lower die holder (3), a lower die core ring (4), a lower die core (5), a lower material pressing ring (6) and a lower cutter (7). An upper die (1) mainly comprises an upper die holder (12), an upper die core (13), an upper inner forming ring (32), an upper outer forming ring (14) and an upper cutter (15). With regard to the lid type of a basic lid, the top of the lower die core ring of the lower die is designed into a contour which correspondingly matches a new lid type, and additionally, the upper outer forming ring and the upper inner forming ring of the upper die are designed into a contour and a suspended section, which vertically match the lower die core ring of the lower die. The top edge of the lower die core is provided with contours which correspondingly match a seventh circular arc section, a fourth straight line section, an eighth circular arc section, and a fifth straight line section of the new lid type. On the basis of adapting to the new lid type, the die solves the problems in the reliability and the service life of an original stamping die for a basic lid of an easy open lid during use.

Inventors:
WANG BINGSHENG (CN)
ZHANG WEIWEI (CN)
XIONG KANG (CN)
Application Number:
PCT/CN2021/125312
Publication Date:
April 28, 2022
Filing Date:
October 21, 2021
Export Citation:
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Assignee:
SUZHOU SLAC PREC EQUIPMENT CO LTD (CN)
International Classes:
B21D51/44; B21D37/08
Domestic Patent References:
WO2010118134A12010-10-14
Foreign References:
CN112275941A2021-01-29
CN213793907U2021-07-27
CN102176989A2011-09-07
CN202239264U2012-05-30
CN204396682U2015-06-17
CN106672390A2017-05-17
US20170113261A12017-04-27
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD. (CN)
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