CN215829046U

CN215829046U - Backstitch wrench mechanism of industrial sewing machine

Info

Publication number: CN215829046U
Application number: CN202122133006.4U
Authority: CN
Inventors: 林群; 李质彬; 刘冰; 许宁鹏; 连泮宗
Original assignee: Qixing Intelligent Technology Co Ltd
Current assignee: Qixing Intelligent Technology Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-02-15
Anticipated expiration: 2031-09-03

Abstract

The application provides an industrial sewing machine backstitch spanner mechanism, concretely relates to sewing machine manufacturing technical field. The pressure sensor is applied to a pressure sensor surface of the pressure sensor through the backstitch wrench; the backstitch spanner supports and leans on the pressure sensor face that pressure sensor has through the end of torsional spring, and pressure sensor feeds back pressure change signal to the control box, and the control box control sewing machine carries out the gauge needle and adjusts, implements the regulation of gauge needle size, realizes the technical purpose of backstitch or close joint. This application utilizes the backstitch spanner to be pushed down and arouses the pressure variation to control the beginning or the stopping of backstitch or close seam through pressure sensor, has that the response sensitivity is high, the location is accurate, overall structure is simple, simple to operate swift characteristics, and simultaneously, pressure sensor relies on sensor physical change transmission signal itself, does not receive external magnetic field influence, is applicable to the place complicated in electromagnetic environment.

Description

Backstitch wrench mechanism of industrial sewing machine

Technical Field

The application provides an industrial sewing machine backstitch spanner mechanism, concretely relates to sewing machine manufacturing technical field.

Background

The backstitch process of the industrial sewing machine is indispensable in the sewing process, the backstitch wrench mechanism of the existing industrial sewing machine is mostly realized in a Hall and magnetic steel induction mode, the backstitch wrench is pressed down to execute backstitch action, and the backstitch action is stopped when the backstitch wrench is reset. The distance between the magnet and the Hall needs to be accurately debugged when the sewing machine leaves a factory so as to ensure the sewing stability. When the sewing machine works, Hall and magnetic steel induction depend on a magnetic field to transmit signals, the signals are easily influenced by the magnetic field environment in a crossed manner, particularly under the condition that a motor or magnetic equipment is arranged nearby, the induction instability of the Hall magnetic steel can be increased by unreliable factors, and the stability and the sewing quality of the sewing machine are influenced.

Disclosure of Invention

To not enough among the prior art, the technical problem that this application will solve lies in providing an industry sewing machine backstitch spanner mechanism, including having backstitch spanner and the torsional spring on the fixed sewing machine body of installation, its characterized in that still has pressure sensor, the backstitch spanner is used in on the pressure sensor face that pressure sensor has.

Preferably, the backstitch wrench is also provided with a torsion spring, and the backstitch wrench is abutted against a pressure sensor surface provided by the pressure sensor through the tail end of the torsion spring.

Preferably, the backstitch wrench is arranged on a shaft pin, and the shaft pin is positioned on the side edge of the sewing machine body.

Preferably, the torsion spring is sleeved on the shaft pin, and the front end of the torsion spring is clamped on the backstitch wrench.

Preferably, the pressure sensor is fixed to a side of the sewing machine body by a screw.

Preferably, the pressure sensor is disposed on a pressure sensor base.

Preferably, the backstitch wrench is located between an upper limit pin and a lower limit pin arranged on the sewing machine body, and the backstitch wrench abuts against the upper limit pin and the lower limit pin at different times.

Preferably, a lower portion of the backstitch wrench abuts against the pressure sensor base.

This application is acted on the pressure sensor face that pressure sensor has through the backstitch spanner, also can pass through the torsional spring, supports the backstitch spanner on the pressure sensor face that pressure sensor has through the end of torsional spring, and pressure sensor feeds back pressure variation signal to the control box, and the control box control sewing machine carries out the gauge needle and adjusts, implements the regulation of gauge needle size, realizes backstitch or the technical purpose of close joint. This application utilizes the backstitch spanner to be pushed down and arouses the pressure variation to control the beginning or the stopping of backstitch or close seam through pressure sensor, has that the response sensitivity is high, the location is accurate, overall structure is simple, simple to operate swift characteristics, and simultaneously, pressure sensor relies on sensor physical change transmission signal itself, does not receive external magnetic field influence, is applicable to the place complicated in electromagnetic environment.

Drawings

FIG. 1 is a schematic structural diagram of a backstitch wrench mechanism of an industrial sewing machine according to the present application.

Reference numerals: 1. the sewing machine comprises a backstitch wrench, 2. an upper limit pin, 3. a torsion spring, 4. a shaft pin, 5. a pressure sensor, 51. a pressure sensor surface, 6. a pressure sensor base, 7. a screw, 8. a lower limit pin and 9. a sewing machine body.

Detailed Description

The following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying fig. 1, is provided to enable those skilled in the art to more readily understand the advantages and features of the present application, and is provided for the purpose of clearly and unequivocally defining the scope of the present application, which is provided by way of illustration only and is not intended to be limiting of the present invention.

In the attached drawings, the backstitch wrench mechanism of the industrial sewing machine is provided with a backstitch wrench 1, a pressure sensor 5, a torsion spring 3, a shaft pin 4, an upper limit pin 2, a lower limit pin 8, a control box and the like which are fixedly arranged on a sewing machine body 9. The backstitch wrench 1 is arranged on an axis pin 4, the axis pin 4 is positioned at the side edge of the sewing machine body 9, and the backstitch wrench 1 can rotate on the axis pin 4; the torsion spring 3 is sleeved on the shaft pin 4, the front end of the torsion spring 3 is clamped on the backstitch wrench 1, and the tail end A point of the torsion spring 3 is abutted against a pressure sensor surface 51 of the pressure sensor 5; an upper limit pin 2 and a lower limit pin 8 are arranged on a sewing machine body 9 in the movable area of the backstitch wrench 1, the upper limit pin 2 and the lower limit pin 8 are used for limiting the backstitch wrench 1, and the backstitch wrench 1 abuts against the upper limit pin 2 and the lower limit pin 8 at different time; the pressure sensor 5 is fixed to the side of the sewing machine body 9 by a screw 7, and the pressure sensor 5 is disposed on the pressure sensor base 6. When the torsion spring 3 is in an initial state, the backstitch wrench 1 is attached to the upper limit pin 2 under the action of the torsion spring 3. The tail end point A of the torsion spring 3 abuts against the pressure sensor surface 51, and when the backstitch wrench 1 and the torsion spring 3 are not pressed down by external force, the pressure of the tail end point A of the torsion spring 3 in the initial state does not send signals to the pressure sensor 5 and the control box.

When carrying out backstitch work, backstitch spanner 1 is pressed down and is leaned on the in-process of spacer pin 8 down, and backstitch spanner 1 drives torsional spring 3 wrench movement, and the terminal A point of torsional spring 3 is to the pressure of pressure sensor face 51 crescent simultaneously. The pressure sensor 5 feeds back a pressure change signal to the control box, when the pressure reaches a certain value, the control box controls the sewing machine to adjust the needle pitch, and the adjustment of the needle pitch is implemented, so that backstitch or close stitch is realized. The backstitch wrench mechanism of this application utilizes backstitch wrench 1 to be pushed down and arouses pressure variation through pressure sensor 5 and be executed by the control box, realize the beginning or the stopping of sewing machine backstitch or close seam action, it is high to adopt pressure sensor 5 to have positioning accuracy, pressure sensor relies on sensor own physical variation transfer signal to have the high characteristics of sensitivity, do not receive external magnetic field influence, be applicable to in the place that electromagnetic environment is complicated, overall structure is simple simultaneously, the quick advantage of mechanism's simple to operate.

It should be pointed out here that the backstitch wrench 1 can also achieve the same technical object without relying on the torsion spring 3. Specifically, a connecting part which can abut against a pressure sensor surface 51 is arranged at one end, located on a shaft pin 4, of the backstitch wrench 1, the connecting part does not contact the pressure sensor surface 51, and no signal is fed back to a control box when the pressure is not changed; when the connecting part contacts and presses the pressure sensor surface 51, the pressure sensor 5 feeds back a pressure change signal to the control box, and then performs backstitch or close stitch, so that the technical effect is the same as that of the torsion spring 3. Simultaneously, this application need not install magnet in addition, need not adorn hall subassembly, only need fix pressure sensor 5 on sewing machine body 9, has the characteristics that simple to operate technical requirement is low, has anti-interference strong advantage very much.

In addition, the application also provides a scheme that: the pressure sensor base 6 has the function of the lower limit pin 2, the lower part of the backstitch wrench 1 is abutted against the pressure sensor base 6 to play the role of the lower limit pin 8, the torsion spring is not needed to be additionally used for limiting, and the realized technical effects are the same.

The above description is only one of the preferred embodiments of the present application, and not intended to limit the scope of the present application, and all modifications that can be made to the equivalent structure or equivalent flow path by using the shape, structure and principle of the present application and the accompanying drawings, or applied to other related fields directly or indirectly are included in the scope of the present application.

Claims

1. The utility model provides an industrial sewing machine backstitch spanner mechanism, is including having the backstitch spanner of installation fixed sewing machine body, its characterized in that still has pressure sensor, the backstitch spanner is used in the pressure sensor face that pressure sensor has.

2. The industrial sewing machine backstitch wrench mechanism of claim 1, further comprising a torsion spring, wherein the backstitch wrench abuts against a pressure sensor surface of the pressure sensor through a distal end of the torsion spring.

3. The industrial sewing machine backstitch wrench mechanism of claim 1 or 2, wherein the backstitch wrench is configured at an axis pin, and the axis pin is positioned at a side edge of the sewing machine body.

4. The backstitch wrench mechanism of claim 2, wherein the torsion spring is sleeved on the shaft pin, and the front end of the torsion spring is clamped on the backstitch wrench.

5. The industrial sewing machine backstitch wrench mechanism of claim 1 or 2, wherein the pressure sensor is fixed to the side of the sewing machine body by a screw.

6. The industrial sewing machine backstitch wrench mechanism of claim 1 or 2, wherein the pressure sensor is disposed on a pressure sensor base.

7. The backstitch wrench mechanism of an industrial sewing machine according to claim 1 or 2, wherein the backstitch wrench is located between an upper limit pin and a lower limit pin provided on the sewing machine body, and the backstitch wrench abuts against the upper limit pin and the lower limit pin at different times.

8. The industrial sewing machine backstitch wrench mechanism of claim 7, wherein a lower portion of the backstitch wrench abuts the pressure sensor base.