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Thread trimming and presser foot lifting mechanism and sewing machine

The technology of lifting presser foot and sewing machine is applied in the field of thread trimming and presser foot lifting mechanism, which can solve the problems of high noise, complex structure and high cost, and achieve the effects of reducing running noise, simplifying structure and reducing the number of movements.

Active Publication Date: 2020-01-31
JACK SEWING MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this sewing machine, in order to realize the functions of thread trimming, thread loosening, and presser foot lifting, a driving motor and an electromagnetic driving device are used. The structure is relatively complicated and the cost is high. In addition, the operation of the driving motor and the electromagnetic driving device , which also makes the sewing machine generate more noise during operation

Method used

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  • Thread trimming and presser foot lifting mechanism and sewing machine
  • Thread trimming and presser foot lifting mechanism and sewing machine
  • Thread trimming and presser foot lifting mechanism and sewing machine

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Embodiment Construction

[0034] Such as figure 1 Shown, this thread trimmer and presser foot lifting mechanism are arranged on the sewing machine casing 8. Additionally, if figure 2 with image 3 As shown, this mechanism includes a motor 1 fixed on the casing 8, the output shaft of the motor 1 is fixed with a drive member 2, the motor 1 is embedded in the sewing machine casing, and is fixedly connected with the sewing machine casing through the motor mounting plate. In this embodiment, the driving member 2 is strip-shaped, and the middle part of the driving member 2 is fixed on the output shaft of the motor 1 . Two ends of the driving member 2 have a first driving part 21 and a second driving part 22 . Specifically, both the first driving part 21 and the second driving part 22 are cylindrical.

[0035] The mechanism also includes a presser foot lifter assembly 3 located on the upper side of the motor 1 and a thread trimmer assembly 4 located on the lower side of the motor. In the first direction...

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Abstract

The invention discloses a trim thread, a lifting foot pressure mechanism and a sewing machine, belonging to the technical field of the sewing machine. The trim thread and the lifting foot pressure mechanism resolve the problems in the former sewing machines including the complex structure and the loud noise in an operation. The trim thread and the lifting foot pressure mechanism comprise an electrical machine. The driving parts are fixed in an output shaft of the electrical machine. The driving parts are provided with a driving part one and a driving part two. The driving part one and the driving part two are arranged on the both sides of the axis of electrical machine. The mechanism comprises a lifting foot pressure module and a trim thread module located on the first rotation direction of the electrical machine. The driving part one is linked with the lifting foot pressure module located on the second rotation direction of the electrical machine. The driving part two is linked with the trim thread module. The former two power elements are replaced with one electrical machine in the mechanism. The mechanism has the advantages of simplifying the structure as well as reducing the operating noise of the sewing machine.

Description

technical field [0001] The invention belongs to the technical field of sewing machines, and relates to a thread trimming and presser foot lifting mechanism. Background technique [0002] Chinese utility model patent (publication number: CN204608362U, publication date: 20150902) discloses a sewing machine, including a presser foot lifting mechanism, a thread trimming mechanism, a thread loosening mechanism, and the presser foot lifting mechanism and the thread loosening mechanism are respectively driven by the same drive motor. Connection, the thread trimming mechanism is connected with the independently set electromagnetic drive device. [0003] In this sewing machine, in order to realize the functions of thread trimming, thread loosening, and presser foot lifting, a driving motor and an electromagnetic driving device are used. The structure is relatively complicated and the cost is high. In addition, the operation of the driving motor and the electromagnetic driving device ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B69/10D05B65/00D05B29/02
CPCD05B29/02D05B65/00D05B69/10
Inventor 李佐时宋施杓邱丽
Owner JACK SEWING MASCH CO LTD
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