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Title:
NOVEL ENVIRONMENT-FRIENDLY PAPER PROTECTION BAG MANUFACTURING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/097879
Kind Code:
A1
Abstract:
A novel environment-friendly paper protection bag manufacturing apparatus (100), comprising plane making devices (200) for making a plane structure (10a). Each plane making device (200) comprises: an inner layer unwinding module (221), an inner core layer unwinding module (223), and an outer layer unwinding module (222) that are used for unwinding, and the paper materials unwound thereby are sequentially stacked from inside to outside, and are located on a working platform (211) and conveyed in a conveying direction; tension adjusting devices (231, 232, 233) used for adjusting tension; a stretching module (24) used for stretching die-cut paper (14a) into a net-like stereoscopic structure; a plurality of first sizing modules (25), the first sizing modules (25) being used for sizing the bonding position of each layer of paper material, so as to connect the multiple layers of paper materials together; and a first pressing module (26), the first pressing module (26) being used for pressing the bonding position where sizing is performed so as to form a flat structure (10a).

Inventors:
YAN JINWEI (CN)
Application Number:
PCT/CN2019/121161
Publication Date:
May 27, 2021
Filing Date:
November 27, 2019
Export Citation:
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Assignee:
BETA SHENZHEN PACKAGE PRODUCTS CO LTD (CN)
International Classes:
B31B70/10; B31B70/00; B31B70/16; B31B70/62; B65D81/03; B31B155/00; B31B160/10; B31B170/20
Domestic Patent References:
WO2005032809A12005-04-14
WO2018236697A12018-12-27
Foreign References:
CN110435219A2019-11-12
CN109720008A2019-05-07
US2474770A1949-06-28
US1947396A1934-02-13
CN108044991A2018-05-18
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