Fully sealing transmission mechanism of caracol hook race sewing machine

A transmission mechanism and sewing machine technology, which is applied in the direction of sewing machine components, sewing machine control devices, sewing equipment, etc., can solve the problems of environmental protection, loud noise, and inconvenient maintenance, so as to improve service life and work efficiency, improve service life, and improve The effect of speed

Active Publication Date: 2008-12-03
四川中缝重工股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to solve the existing problems of large volume, high

Method used

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  • Fully sealing transmission mechanism of caracol hook race sewing machine
  • Fully sealing transmission mechanism of caracol hook race sewing machine
  • Fully sealing transmission mechanism of caracol hook race sewing machine

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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] Such as Figure 3 to Figure 5 As shown, the present invention mainly includes upper and lower casings 30, 31, a sealing box 23 arranged in the upper casing 30 and a transmission mechanism arranged in the sealing box 23 and the inner casing 31 of the lower casing, the sealing box 23 and the lower casing The upper surface of the casing 31 is fixedly connected, the upper surface of the sealing box 23 is provided with a detachable upper cover 1, a sealing ring 2 is provided between the upper cover 1 and the sealing box 23, and the lower surface of the sealing box 23 is provided with The connecting rod 9 passes through the port.

[0020] The transmission mechanism mainly includes a lower main shaft 15, a pendulum gear shaft 18, an upper main shaft 3 and a connecting rod 9, and the two ends of the upper main shaft 3 pass through the two side walls of the sealed box...

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PUM

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Abstract

The invention discloses a fully-sealed transmission mechanism of a semi-rotating shuttle sewing machine. The fully-sealed transmission mechanism comprises an upper housing case, a lower housing case, a lower main shaft, a swinging gear shaft, an upper main shaft, a link rod and a sealing box body arranged in the upper housing case, wherein the lower main shaft is arranged in the lower housing case, and is provided with a lower main shaft gear; the swinging gear shaft is arranged on the lower side of the lower main shaft, and is provided with a swinging gear meshed with the lower main shaft gear; and the upper main shaft horizontally passes through the sealing box body in the upper housing case, and is provided with a cam; the cam on the upper main shaft and the pin shaft of the swinging gear are respectively sleeved with the two ends of the link rod; the upper main shaft and the cam are of an integral structure, and the outer diameter of one side of the cam is smaller than the semidiameter of the upper main shaft. The fully-sealed transmission mechanism connects the cam with the upper main shaft into a whole under the condition that the eccentric distance remains unchanged, thereby reducing the volume. Besides, the perfect-sealed transmission mechanism runs in the machine oil in the sealing box body, thereby solving the difficult problems that the prior product has large noise, the machine oil pollutes the sewing, the abrasion is fast, the rotating speed is low, and the maintenance is inconvenience, and greatly improving the service life and the working efficiency.

Description

technical field [0001] The invention relates to a sewing machine, in particular to a sewing machine transmission mechanism. Background technique [0002] The transmission mechanism of the existing semi-rotary rotary hook sewing machine generally adopts the following two structures. One is as shown in Figure 1. A crankshaft 105 is arranged on the upper main shaft 101, and the connecting rod is composed of a rod body 102 and a connecting rod cover 103. The connecting rod cover 103 The rod body 102 is fixed on the crankshaft 105 by connecting screws 104 . This structure has high manufacturing cost and slow rotating speed. Another kind of transmission mechanism is shown in Figure 2, the cam 203 is eccentrically fixed on the upper main shaft 201, the upper end of the connecting rod 202 is sleeved on the outer surface of the cam 203, the left end of the cam 203 is provided with a cam retaining ring 204, on the connecting rod Bearing is arranged between 202 and cam 203, makes it ...

Claims

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Application Information

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IPC IPC(8): D05B69/02D05B69/30D05B71/00
Inventor 张章生
Owner 四川中缝重工股份有限公司
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