Title:
SEALING MECHANISM, SEALING METHOD, AND VERTICAL FILLING PACKAGING MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/207672
Kind Code:
A1
Abstract:
The purpose of the present invention is to form a heat seal that has high strength and is not easily broken. This sealing mechanism comprises: a heater bar (8) and a heater bar receiver (9) that sandwich an overlapped part of a film (F2) from both surfaces of the overlapped part and form a heat seal at the overlapped part. The heater bar (8) includes: a slender first pressing surface (28) that heats and melts the overlapped part while pressing the overlapped part toward the heater bar receiver (9); and a second pressing surface (30) that is positioned on at least one side in a widthwise direction of the first pressing surface (28), presses the overlapped part toward the heater bar receiver (9) when the first pressing surface (28) has pressed the overlapped part, and has a temperature lower than that of the first pressing surface (28).
Inventors:
TSURUTA MASATAKA (JP)
IMAI SEIICHI (JP)
IMAI SEIICHI (JP)
Application Number:
PCT/JP2018/016756
Publication Date:
October 31, 2019
Filing Date:
April 25, 2018
Export Citation:
Assignee:
ORIHIRO ENG CO LTD (JP)
International Classes:
B65B51/10
Foreign References:
| JP2006347601A | 2006-12-28 | |||
| JP2014129133A | 2014-07-10 | |||
| JP2003118745A | 2003-04-23 |
Attorney, Agent or Firm:
MIYAZAKI Teruo et al. (JP)
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