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Sewing machine

A sewing machine and casing technology, applied in the direction of sewing machine components, sewing machine needle holders, sewing equipment, etc., to achieve the effect of low vibration and noise, reduce vibration and noise, and reduce the overall length

Pending Publication Date: 2019-02-19
林燕飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a sewing machine. The technical problem to be solved by the present invention is: how to improve the compactness of the sewing machine and reduce the vibration and noise generated by the motor when the sewing machine is running.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] like figure 1 , figure 2 , image 3 As shown, this sewing machine includes a casing 1, and the casing 1 includes a stand 2 arranged in a vertical direction and a cross arm 3 arranged in a horizontal direction, the right end of the cross arm 3 is fixedly connected with the stand 2, and the A needle bar mechanism 4 is arranged at the left end, and a rotary driving source 5 connected with the needle bar mechanism 4 is fixed in the cross arm 3 . Preferably, the rotational drive source 5 is located in the middle of the cross arm 3 . Wherein, the stand 2 and the cross arm 3 can adopt an integrally formed structure, or can adopt a split type and then be fixedly connected by fasteners or welding. The stand 2 is designed in a roughly vertical direction, but the shape of the stand 2 is not limited to the shape described in the figure, it can be designed as a square, an arc, or a mode with a slope, so-called vertically arranged, It does not mean that it must be perpendicular ...

Embodiment 2

[0031] This embodiment is roughly the same as Embodiment 1, the difference is that, as Figure 4 , Figure 5 As shown, in the present embodiment, the motor 6 includes a body and a motor shaft 7, and a left transmission shaft 8 and a right transmission shaft 9 are rotated in the casing 1, and the two ends of the left transmission shaft 8 are connected to the left end of the motor shaft 7 and the needle respectively. The rod mechanism 4 is connected; the two ends of the right drive shaft 9 are connected with the right end of the motor shaft 7 and the sewing machine hand wheel 10 respectively. As a preference, in this embodiment, the left end and the right end of the motor shaft 7 are respectively connected to the left transmission shaft 8 and the right transmission shaft 9 through a coupling 11 . Of course, the above three can be connected by various methods such as keyways and screws.

Embodiment 3

[0033]This embodiment is roughly the same as Embodiment 1, the difference is that in this embodiment, if Image 6 As shown, the casing 1 is provided with coaxial upper shaft one 15 and upper shaft two 16 for rotation, the left end of the upper shaft one 15 is connected with the needle bar mechanism 4, the right end of the upper shaft one 15 is connected with the left end of the upper shaft two 16 The right end of the upper shaft two 16 is connected with the sewing machine handwheel 10; the motor 6 includes a matched stator 13 and a rotor 14, the stator 13 is fixed on the casing 1, and the upper shaft one 15 or the upper shaft two 16 is connected with the The rotor 14 is fixedly connected. In this embodiment, the rotor 14 is preferably connected to the upper shaft 2 16, and the connection between the two can be fixed through the coupling 11, or through key grooves, screws and the like.

[0034] Compared with the prior art, in this application, the position of the rotary drive ...

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Abstract

The invention belongs to the technical field of sewing equipment, and particularly relates to a sewing machine. The sewing machine is capable of solving technical problems of a current sewing machinethat vibration is large, compactness is poor, packaging and conveying cost is large and the like. The sewing machine comprises a machine housing. The machine housing comprises an upright base installed along a vertical direction and a cross arm installed along a horizontal direction. The right end of the cross arm is fixedly connected with the upright base. The left end of the cross arm is provided with a needle rod mechanism. The cross arm is internally and fixedly provided with a rotary driving source connected with the needle rod mechanism. In an operating process of the sewing machine, therotary driving source can output a torque to drive the needle rod mechanism to be moved, and material needling is realized. Compared with the prior art, the sewing machine is capable of enabling a position of the rotary driving source to be designed on the cross arm, relatively shortening a whole length of the sewing machine in left and right directions, improving complete machine compactness ofthe sewing machine, and reducing packaging and conveying cost, wherein a gravity center of the sewing machine is closer to a middle position, and vibration and noise are smaller in operation.

Description

technical field [0001] The invention belongs to the technical field of sewing equipment, in particular to a sewing machine. Background technique [0002] With the continuous improvement of the level of science and technology, sewing machines have gradually realized automation. Originally, the motor was usually arranged outside the sewing machine and under the work table, and was connected with the sewing machine by a belt. However, due to the large size of this mechanism, and the user often needs to control the hand wheel with the hand during operation, the motor is usually designed on the rear end surface of the end of the machine head. One end of the motor shaft is connected to the main shaft, and the other end is connected to the hand wheel. wheel connection. [0003] Such as my country's patent CN 202688662 U discloses a lockstitch sewing machine with an integrated structure of motor and electric control, including a machine head, and a motor without a casing is arrang...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B55/14
CPCD05B55/14
Inventor 林燕飞
Owner 林燕飞