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Patent Searching and Data


Title:
TELESCOPIC PAPER STRAW AND MANUFACTURING PROCESS THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/258248
Kind Code:
A1
Abstract:
A telescopic paper straw and a manufacturing process thereof. The telescopic paper straw comprises a first paper tube (1) and a second paper tube (2). The first paper tube (1) is axially and movably sleeved outside the second paper tube (2). A first limiting part (11) with a reduced extruded pipe diameter is provided at the lower end of the first paper tube (1). The inner diameter of the first limiting part (11) is less than or equal to the outer diameter of the second paper tube (2). A telescopic section (21) with a reduced extruded pipe diameter is provided below the upper end of the second paper tube (2). The outer diameter of the telescopic section (21) is less than the inner diameter of the first limiting part (11). The manufacturing process of the telescopic paper straw comprises the following steps: 1) the lower end of the first paper tube (1) is extruded by a first extrusion wheel to form the first limiting part (11) with a reduced diameter; 2) below the upper end of the second paper tube (2), the telescopic section (21) with a reduced diameter is extruded and formed by a second extrusion wheel; and 3) the first paper tube (1) and the second paper tube (2) are sleeved with each other. According to the telescopic paper straw, the structure is reasonable, the limitation is stable, and the manufacturing is convenient.

Inventors:
XUE YU (CN)
Application Number:
CN2019/093690
Publication Date:
December 30, 2020
Filing Date:
June 28, 2019
Export Citation:
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Assignee:
XUE YU (CN)
International Classes:
A47G21/18; B31D5/00; B31D5/02
Foreign References:
CN110025194A2019-07-19
CN110219211A2019-09-10
CN108836072A2018-11-20
KR20040020206A2004-03-09
US2557017A1951-06-12
CN109363461A2019-02-22
JP2013188319A2013-09-26
CN101745577A2010-06-23
Attorney, Agent or Firm:
RUIAN XIANGDONG INTELLECTUAL PROPERTY OFFICE (CN)
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