Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
THREAD CONVEYING DEVICE FOR SEWING
Document Type and Number:
WIPO Patent Application WO/2020/125034
Kind Code:
A1
Abstract:
Disclosed is a thread conveying device for sewing, comprising an upper thread needle (4), an upper thread positioning mechanism and a bottom thread stirring needle (6), wherein a bottom thread hole for a bottom thread to pass through is formed in the bottom thread stirring needle (6), and the upper thread needle (4) is arranged in an ascending and descending manner; after descending, a lower end of the upper thread needle (4) penetrates through the upper thread positioning mechanism; the bottom thread stirring needle (6) is arranged on an upper side of the upper thread positioning mechanism; and a stirring needle driving mechanism for driving the bottom thread stirring needle (6) to swing around an axis of the upper thread needle (4) is connected to the bottom thread stirring needle. The bottom thread stirring needle (6) is used to drive the bottom thread to swing around the axis of the upper thread needle (4), the upper thread positioning mechanism is used to position the upper thread after the upper thread needle (4) descends, and the bottom thread stirring needle (6) is used to stir the upper thread, such that the bottom thread and the upper thread are wound and looped. A bottom thread bobbin is replaced, and the bottom thread only needs to pass through the bottom thread hole of the bottom thread stirring needle (6), such that the thread feeding time of the bottom thread can be greatly reduced, endless thread feeding of the bottom thread can be theoretically realized, the device is not limited by the size of the bobbin, and the working efficiency is improved.

Inventors:
MA RUI (CN)
Application Number:
CN2019/100758
Publication Date:
June 25, 2020
Filing Date:
August 15, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MA RUI (CN)
International Classes:
D05B63/02; D05B53/00; D05B61/00
Foreign References:
US5315945A1994-05-31
CN1153838A1997-07-09
CN205275914U2016-06-01
CN109371584A2019-02-22
CN209227190U2019-08-09
CN104878528A2015-09-02
Attorney, Agent or Firm:
BEIJING ZHIGUAGUA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: