Title:
SCREEN TENSIONING DEVICE FOR MASK
Document Type and Number:
WIPO Patent Application WO/2021/103684
Kind Code:
A1
Abstract:
Disclosed in the present application is a screen tensioning device for a mask. The screen tensioning device comprises a supporting means, a first moving mechanism, and an ultrasonic welding device. The supporting means is configured to place a mask frame; the ultrasonic welding device comprises an ultrasonic welding head; the ultrasonic welding head is fixedly connected to the first moving mechanism; the mask frame is disposed on the supporting means; the ultrasonic welding head is disposed on the side of the mask frame distant from the supporting means.
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Inventors:
QI YINGXU (CN)
Application Number:
PCT/CN2020/111055
Publication Date:
June 03, 2021
Filing Date:
August 25, 2020
Export Citation:
Assignee:
YUNGU GUAN TECH CO LTD (CN)
International Classes:
C23C14/04; B23K28/02; C23C14/24
Foreign References:
| CN211005577U | 2020-07-14 | |||
| CN109249141A | 2019-01-22 | |||
| CN108504991A | 2018-09-07 | |||
| CN107732012A | 2018-02-23 | |||
| US20170106472A1 | 2017-04-20 |
Attorney, Agent or Firm:
BEIJING YZH IP FIRM (CN)
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