Differential material feeding device of sewing machine
A feeding device and sewing machine technology, applied in the direction of sewing machine control devices, sewing machine components, sewing equipment, etc., can solve the problems affecting the normal adjustment of differential feed, large friction between forks and sliding parts, and wear of forks and sliding parts and other problems, to achieve the effect of small strength, simple and compact structure, and stable transmission
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[0035] Example one
[0036] As shown in Figure 1, the differential feeding device of the sewing machine is set at the frame 1 of the sewing machine, through which the differential feeding can be realized to sew the collar of the T-shirt, the overlock of the cuff of the clothes, and the hem of the long cuff. Sewing the parts like this.
[0037] The differential feeding device of the sewing machine includes a power main shaft 4, a transmission shaft 5, a feeding tooth 2a, a differential tooth 3a, and the like. In this embodiment, a belt pulley is fixedly connected to the power main shaft 4, and the motor drives the power main shaft 4 to rotate through the belt. The feeding tooth 2a is fixedly connected to the feeding tooth frame 2, the differential tooth 3a is fixedly connected to the differential tooth frame 3, and the feeding tooth frame 2 and the differential tooth frame 3 are both located on the frame 1 of the sewing machine.
[0038] The power main shaft 4 drives the transmissi...
Example Embodiment
[0050] Example two
[0051] The mechanism and principle of this embodiment are basically the same as that of the first embodiment. The difference is that the differential mechanism is a differential handle 6. One end of the differential handle 6 is fixedly connected to the transmission shaft 5, and the other end is provided with a strip hole 6a. The above-mentioned differential tooth frame 3 is provided with a convex head 3b, and the convex head 3b is located in the strip hole 6a, as shown in FIG. 3.
Example Embodiment
[0052] Example three
[0053] The mechanism and principle of this embodiment are basically the same as those of the first embodiment. The difference is that the feeding mechanism is the feeding handle 8. One end of the feeding handle 8 is fixedly connected to the transmission shaft 5, and the other end is provided with a strip hole 8a. The feeding bracket 2 is provided with a convex head 2b, and the convex head 2b is located in the strip hole 8a, as shown in FIG. 4.
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