WELDING APPARATUS AND MANUFACTURING METHOD FOR MULTILAYER POCKET SPRING STRING, AND MANUFACTURING DEVICE FOR POCKET SPRING MATTRESS

WIPO Patent Application WO/2022/134286

A1

A welding apparatus for a multilayer pocket spring string, comprising a second welding module (100), at least one first welding module (200), at least one first driving mechanism (400), and at least two spring conveying mechanisms (500) arranged at intervals. Cloth (10) is folded and wrapped on each spring conveying mechanism to move; the first driving mechanism drives the first welding module to progressively move along the length direction of each accommodating cavity (30), so as to adjust the position of the first welding module; the first welding module welds the cloth to form separation seams (40), so that each accommodating cavity is separated to form at least two layers of first cavities (31); and the second welding module welds the cloth, so that the cloth forms accommodating cavities spaced apart from each other. The position of each separation seam is progressively changed along with the movement of the cloth, thereby achieving the manufacturing of the multilayer pocket spring string having continuous and progressive change of the intervals. The present invention further relates to a manufacturing method for the multilayer pocket spring string and a manufacturing device for a pocket spring mattress.

TAN ZHIMING (CN)
LIANG JIE (CN)
TAN ZHILIANG (CN)

PCT/CN2021/075833

June 30, 2022

February 07, 2021

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GUANGZHOU LIANROU MACHINERY & EQUIPMENT CO LTD (CN)

A47C27/06

CN105129716A	2015-12-09
CN110916426A	2020-03-27
CN110973893A	2020-04-10
US5566408A	1996-10-22
US20150308533A1	2015-10-29
EP3525630B1	2020-09-16

JIAQUAN IP LAW (CN)

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