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Title:
COMPRESSION MOLDING DEVICE FOR MOLDED PRODUCT, AND MOLDING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/139385
Kind Code:
A1
Abstract:
A compression molding device for a molded product, and a molding method therefor. The device comprises an upper die comprising an upper die base (100) and an upper die cover plate (110); and a lower die base (120). The upper die further comprises a pressing structure used for connecting the upper die base (100) and the upper die cover plate (110) and capable of moving relative to an axial direction of the lower die base (120) when being pressed, and when the upper die is moved to enable the upper die cover plate (110) to come into contact with the lower die base (120), the pressing structure and the lower die base (120) have a pair of spaced surfaces which are opposite each other and can form close contact by means of relative movement, one of the opposite spaced surfaces is provided with a pressing groove (121) recessed in the axial direction of the lower die base (120), a protrusion protruding in the axial direction of the lower die base (120) is formed on another surface of the opposite spaced surfaces; when a sufficient axial pressure is applied to the upper die base (100), the pressing structure is pressed to move close to the axial direction of the lower die base (120), and the lower die base (120) is in close contact with the opposite spaced surface on the pressing structure, thus the protrusion is tightly pressed into the groove (121), so that a complete circle of inverted recess is formed on a side wall of a molded product.

Inventors:
ZHAO WEI (CN)
Application Number:
PCT/CN2020/127691
Publication Date:
July 15, 2021
Filing Date:
November 10, 2020
Export Citation:
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Assignee:
GUANGXI FIRST PAK ENVIRONMENTAL PROTECTION TECH CO LTD (CN)
International Classes:
D21J5/00; B29C33/42
Foreign References:
CN111206459A2020-05-29
CN101961921A2011-02-02
CN203583290U2014-05-07
CN209619754U2019-11-12
CN105019315A2015-11-04
CN107252848A2017-10-17
CN103572668A2014-02-12
JPH08133317A1996-05-28
Attorney, Agent or Firm:
SUZHOU XINDA GONGCHUANG PATENT (CN)
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