Hook line transmission mechanism of sewing machine
A transmission mechanism and sewing machine technology, which is applied to the sewing machine ferrule mechanism, sewing machine components, sewing equipment and other directions, can solve the problems of inconvenient maintenance, high cost and high noise, and achieve the effect of convenient maintenance, low cost and simple structure.
Active Publication Date: 2011-09-07
四川中缝重工股份有限公司
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[0011] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0012] Such as figure 1 , figure 2 As shown, the present invention comprises a transmission shaft 5, a tubular crochet base driving rod 7, a swing piece driving rod 8, a crochet base driving slide seat 4 and a swinging piece slide seat 3, and the tubular crochet base driving rod 7 is arranged on the vertical side of the transmission shaft 5. In the plane and the two do not intersect; the swing piece drive rod 8 is installed in the crochet seat drive rod 7 and moves up and down along the inner cavity of the crochet seat drive rod 7; one end of the transmission shaft 5 is concentrically sleeved with the first cam 6a and the second The double driving cam 6 composed of two cams 6b, and the cam surfaces of the first cam 6a and the second cam 6b are axially symmetrical, and an isolation retaining ring is arranged between the first cam 6a and the second cam 6b.
[0013] ...
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The invention discloses a snell transmission mechanism of a sewing machine. a concentric and linked dual-drive cam composed of a first cam and a second cam is arranged at one end of a transmission shaft; the cam face of the first cam is axially symmetrical with that of the second cam; a crochet needle seat driving rod and a swinging plate driving rod are respectively and concentrically sleeved with one end of a crochet needle seat driving slide carriage and one end of a swinging plate slide carriage, and are respectively and axially fixed by retainer rings, and retaining pins are respectivelysleeved with the other ends thereof; rectangular grooves are respectively formed on linking arms at the middle parts of the crochet needle seat driving slide carriage and the swinging plate slide carriage; the first cam and the second cam are respectively inserted into the grooves, and are abutted with the inner surfaces of the upper walls thereof; and the dual-drive cam respectively drives the crochet needle seat driving slide carriage and the swinging plate slide carriage to move up and down along the crochet needle seat driving rod and the swinging plate driving rod when the transmission shaft rotates. The snell transmission mechanism adopts the dual-drive cam arranged on the same transmission shaft to drive the crochet needle seat driving rod and the swinging plate driving rod, so as to achieve the swinging plate mechanism and the crochet needle mechanism required by the snell, the structure is simply assembled, the maintenance is convenient, and the cost is low.
Description
technical field [0001] The invention relates to a sewing machine, in particular to a hook thread transmission mechanism of the sewing machine. Background technique [0002] At present, the thread hook transmission mechanism of sewing machines on the market adopts double transmission shafts, which cooperate with double cams to drive the corresponding mechanism to achieve the thread hook work process. The main structure is complicated, the cost is high, the maintenance is inconvenient, and the noise is high. Contents of the invention [0003] The technical problem to be solved by the present invention is to solve the problems of complex structure, high cost, inconvenient maintenance and high noise of the thread hook transmission mechanism of the sewing machine. [0004] In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is to provide a hook thread transmission mechanism of a sewing machine, which includes a trans...
Claims
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IPC IPC(8): D05B57/30
Inventor 张章生
Owner 四川中缝重工股份有限公司