Title:
FOLLOW-UP HOT-PRESSING MECHANISM FOR BAG-FORMING MACHINE AND BAG-FORMING MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/120553
Kind Code:
A1
Abstract:
Disclosed is a follow-up hot-pressing mechanism for a bag-forming machine. The follow-up hot-pressing mechanism comprises at least: a pulling device for continuously pulling a packing bag film material and conveying the same to a hot-pressing device; the hot-pressing device for hot-pressing the packing bag film material conveyed thereto; a drive mechanism for driving the pulling device and the hot-pressing device; a monitoring system for monitoring a hot-pressing position; and a control system. The invention has the following beneficial effects: a packing bag film material is hot-pressed by means of follow-up hot-pressing; the hot-pressing mechanism moves along with the packing bag film material, and performs hot-pressing simultaneously; the packing bag film material is only subjected to a pulling force from a pulling mechanism horizontally, thereby preventing tensile deformation; the control system and a servo motor control the hot-pressing device and the pulling device, thereby causing traveling speed of the hot-pressing device to correspond to that of the packing bag film material, and resulting in stable control actions, high control precision, and high stability and reliability. The invention is highly automated, and improves hot-pressing efficiency and quality of packing bags. The device is applicable to film materials having low tensile strength as well as other materials, and therefore has a wide range of applications.
Inventors:
WANG JIAN (CN)
Application Number:
PCT/CN2020/096624
Publication Date:
June 24, 2021
Filing Date:
June 17, 2020
Export Citation:
Assignee:
SHANGHAI ZHOUTAI LIGHT INDUSTRY MACHINERY MFG CO LTD (CN)
International Classes:
B31B70/64; B31B70/00
Foreign References:
| CN111055538A | 2020-04-24 | |||
| CN110328898A | 2019-10-15 | |||
| CN203752578U | 2014-08-06 | |||
| EP3339011A2 | 2018-06-27 | |||
| US20190030850A1 | 2019-01-31 | |||
| CN110328893A | 2019-10-15 | |||
| CN107775998A | 2018-03-09 | |||
| CN109720006A | 2019-05-07 |
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