A tooth-lifting mechanism and sewing machine with adjustable tooth-lifting height

A technology of height and tooth shaft, which is applied in the direction of sewing machine components, sewing equipment, cloth feeding mechanism, etc., can solve the problems of changing the sewing machine feeding pitch, increasing the height of the feeding teeth, affecting the sewing quality, etc., so as to improve the versatility and adapt The effect of enhancing sexuality and enhancing competitiveness
CN112626732BActive Publication Date: 2022-07-22JACK SEWING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JACK SEWING MASCH CO LTD
Publication Date
2022-07-22

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    Figure 1
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    Figure 2
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    Figure 3
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Abstract

The invention provides a tooth-lifting mechanism with adjustable height, comprising a main shaft, a tooth-lifting shaft, a tooth frame, a feeding dog, a first tooth-lifting transmission component connected between the main shaft and the tooth-lifting shaft, and a tooth-lifting shaft connected to the tooth-lifting shaft. The second tooth lift transmission assembly, the adjustment drive assembly, and the adjustment operation part between the tooth frame and the tooth frame, the first tooth lift transmission assembly includes a tooth lift eccentric fixed on the main shaft, a first tooth lift link, and a second tooth lift A connecting rod, and a tooth-lifting crank fixed on the tooth-lifting shaft, one end of the first tooth-lifting link is rotatably sleeved on the outer periphery of the tooth-lifting eccentric, the other end is hinged with one end of the second tooth-lifting link, the second The other end of the tooth-lifting link is hinged with the tooth-lifting crank, and the adjustment operation part acts on the first tooth-lifting transmission assembly through the adjustment drive assembly to change the position of the hinge point of the first tooth-lifting link and the second tooth-lifting link, Thereby, the transmission efficiency between the tooth-lifting eccentric wheel and the tooth-lifting shaft is changed, the height of the tooth-lifting is adjusted, and the versatility of the sewing machine is improved.
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Description

technical field

[0001] The invention relates to a tooth-lifting mechanism with adjustable height.

[0002] The present invention also relates to a sewing machine including the above-mentioned tooth-lifting mechanism. Background technique

[0003] like figure 1 As shown, various types of sewing machines currently on the market include a main shaft 100 driven and rotated by a main motor, a tooth frame 200, a feed dog 300 installed on the tooth frame 200, and a tooth-lifting mechanism connected between the main shaft 100 and one end of the tooth frame 200 400, and the feeding mechanism 500 connected between the main shaft 100 and the other end of the tooth frame 200, the main shaft 100 drives the tooth frame 200 and the feeding dog 300 to reciprocate up and down through the tooth lifting mechanism 400, and the main shaft 100 drives the tooth frame 200 through the feeding mechanism 500. Reciprocate back and forth with the feed dog 300. Therefore, the feed dog 300 performs a c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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