Title:
SEALING DEVICE AND MULTIFUNCTIONAL VACUUM SEALING MACHINE USING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/051223
Kind Code:
A1
Abstract:
A sealing device (3) and a multifunctional vacuum sealing machine using the device. The multifunctional vacuum sealing machine comprises a housing (1), a vacuumizing device (2) provided in the housing (1), and the sealing device (3). The sealing device (3) comprises a thermic bonding device (31). During sealing, two or more first heating wires (311) and one or more second heating wires (312) comprised in the thermic bonding device (31) perform cross-sealing twice so as to form a completely closed sealing line. During vacuumizing, while an upper cavity (21) and a lower cavity (22) hold and seal a bag to be vacuumized, a needle (25) in the upper cavity (21) punches a hole on the bag, so as to perform vacuumization on the bag. The position of the hole is in a seal region defined by the sealing line and the adjacent first heating wire (311) and second heating wire (312), or in a seal region defined by the first heating wire (311) and the second heating wire (312). After vacuumizing, an opening is sealed in an original position, thereby ensuring that no air enters the vacuumized bag during sealing.t
Inventors:
LI CHENG (CN)
HUANG GUOLIANG (CN)
WANG ZHENMING (CN)
HUANG GUOLIANG (CN)
WANG ZHENMING (CN)
Application Number:
PCT/CN2019/105894
Publication Date:
March 25, 2021
Filing Date:
September 16, 2019
Export Citation:
Assignee:
SHENZHEN DESIWIN PRODUCT DEV CO LTD (CN)
International Classes:
B65B31/06; B65B51/14; B65B61/00; B65B61/06
Foreign References:
| CN207000945U | 2018-02-13 | |||
| KR20100081718A | 2010-07-15 | |||
| KR20100089117A | 2010-08-12 | |||
| KR20140042487A | 2014-04-07 | |||
| CN106628405A | 2017-05-10 | |||
| EP2110320A1 | 2009-10-21 |
Attorney, Agent or Firm:
SHENZHEN QIANNA PATENT AGENCY LTD. (CN)
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