Sewing machine
A technology for sewing machines and oil pump bodies, applied in the field of sewing machines, can solve problems affecting product quality and life, jamming, machine wear, etc., and achieve the effect of improving quality and service life, less structural changes, and less space occupation
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[0027] The present invention will be further described below with specific embodiment, see figure 1 -7:
[0028] A sewing machine, comprising an oil pump body, in which an oil pump shaft 2 driven and rotated by a vertical shaft 1 is arranged, the oil pump body includes a plunger pump body 3 and an impeller pump body 4, and the plunger pump body 3 and an impeller 9 pump body 4 Integral molding structure. The oil pump shaft 2 is an eccentric shaft. A first eccentric part 5 and a second eccentric part 6 are arranged on the oil pump shaft 2. The first eccentric part 5 is located in the plunger pump body 3, and the second eccentric part 6 is located in the vane pump body. 4, a plunger hole corresponding to the first eccentric part 5 is set on the plunger pump body 3, a first plunger 7 is set in the plunger hole, and a plunger hole corresponding to the second eccentric part is set on the vane pump body 4. The plunger hole corresponding to part 6 is provided with a second plunger 8...
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