CN106835530B - Automatic control method for backstitch of sewing machine - Google Patents
Automatic control method for backstitch of sewing machine Download PDFInfo
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- CN106835530B CN106835530B CN201611210471.0A CN201611210471A CN106835530B CN 106835530 B CN106835530 B CN 106835530B CN 201611210471 A CN201611210471 A CN 201611210471A CN 106835530 B CN106835530 B CN 106835530B
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- Prior art keywords
- sewing
- cloth
- backstitch
- sensor
- automatic
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/22—Devices for stopping drive when sewing tools have reached a predetermined position
Abstract
The invention belongs to the technical field of sewing machines, and particularly relates to an automatic control method for backstitch of a sewing machine. The sewing machine solves the problem of how to automatically judge when the backstitch needs to be carried out, thereby achieving the purpose of sewing. The method comprises the following steps: (1) when starting sewing, the sensor senses whether cloth exists; then, the sewing operator sets the advancing needle number of the cloth before the automatic backstitch sewing action according to the program, and performs the automatic backstitch sewing action when starting sewing after the cloth advances according to the set needle number; (2) continuing to perform sewing action; (3) when the cloth is sewn to the tail part, the sensor senses whether the cloth leaves the range of the sensor again, and the controller controls the cloth to move forward for a certain number of needles and then automatically carries out reverse sewing. The invention can control the sewing machine to automatically stop the needle or automatically reverse the seam at the starting position and the tail position of the cloth by the controller, finally achieve the purpose of full-automatic reverse seam and improve the sewing efficiency.
Description
Technical Field
The invention belongs to the technical field of sewing machines, and particularly relates to an automatic control method for backstitch of a sewing machine.
Background
At present, when cloth is sewn in the sewing industry, reverse sewing is often performed at the beginning or the tail part so as to prevent the stitches from being loose and improve the sewing effect. The existing backstitch method comprises the following steps: the sewing operator needs to visually observe two positions of the cloth when the cloth starts to be sewn and when the cloth reaches the tail part and needs to be rewound, and then manually press the backstitch button to control the sewing machine to perform the backstitch sewing action. However, when the sewing machine is used to sew, the needle speed is too high, which causes a problem that the cloth is wasted due to too early or too late needle stop, and the sewing efficiency is reduced by this operation method.
Disclosure of Invention
The invention provides an automatic control method for backstitch of a sewing machine aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to automatically judge when the back stitching is needed so as to achieve the purpose of sewing.
The purpose of the invention can be realized by the following technical scheme:
one of the objects of the present invention is to provide an automatic control method for backstitch of a sewing machine, comprising the steps of:
(1) when sewing, a sensor arranged near the presser foot senses whether cloth is put between the presser foot and the needle plate through the sensor, and a controller reads the state of the sensor to judge whether the cloth exists;
if the cloth exists, the sewing operator sets the number of needles of the cloth which advance before the automatic backstitch sewing action is carried out according to the program, and the controller automatically controls the automatic backstitch sewing action when the sewing machine starts sewing after the cloth advances according to the set number of needles;
or the controller controls the sewing machine to automatically stop the needle, and the sewing operator manually presses the backstitch button to perform backstitch sewing action during starting;
(2) after finishing the backward sewing action during starting sewing, the controller controls the sewing machine to continue sewing action;
(3) when the cloth is sewn to the tail part, the sensor senses whether the cloth leaves the range of the sensor again and the controller reads the state of the sensor again to judge whether the cloth leaves the range of the sensor;
if the cloth leaves the range of the sensor, the cloth advances by a certain needle number, the certain needle number is the needle number which is set in the step (1) and advances before the automatic backstitch sewing action is carried out, and the backstitch sewing action of the tail part is automatically carried out after the cloth advances according to the set needle number;
or the controller controls the sewing machine to automatically stop the needle, and the sewing operator manually presses the backstitch button to perform the backstitch sewing action of the tail part, thereby finishing the whole sewing process.
In the automatic control method for backstitch of a sewing machine described above, the operation of setting the number of needles through which the cloth advances before the automatic backstitch sewing operation is performed by the sewing operator according to the program in the step (1) may be set before the sewing start step.
In the above-described automatic control method for the backstitch of the sewing machine, the sensor is provided on the feed end of the needle plate.
In the above automatic control method for backstitch of the sewing machine, the sensor is an infrared reflection sensor or a pressure sensor.
The invention also provides a control device for the backstitch of the sewing machine, which comprises a controller and a sensor arranged near a presser foot, wherein the sensor senses the state of the cloth when the cloth is sewn up and sewn to the tail part, and the controller controls the automatic backstitch action or the automatic needle stopping action.
In the above-mentioned control device for the backstitch of the sewing machine, the sensor is arranged at the feed end of the needle plate.
In the above-mentioned control device for the backstitch of the sewing machine, the sensor is an infrared reflection type sensor or a pressure sensor.
Compared with the prior art, the invention has the following advantages:
the sensor is matched with the controller to sense whether the cloth reaches the position needing back stitching, namely the starting stitching position and the tail position of the cloth, the controller controls the sewing machine to automatically stop the needle or automatically back stitching, and finally the full-automatic back stitching is achieved, so that the sewing efficiency is improved, meanwhile, the defect of cloth waste caused by too early or too late needle stop is avoided, the basis is made for the full automation of the sewing machine, and the full-automatic back stitching machine can also be applied to the occasion of straight line sewing.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure, 1, a needle bar; 2. a presser foot; 3. a needle plate; 4. a sensor.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to fig. 1, but the present invention is not limited to these embodiments.
An automatic control method for backstitch of a sewing machine comprises the following steps:
(1) when sewing, a sensor 4 arranged near the presser foot 2 senses whether cloth is put between the presser foot 3 and the needle plate 2 through the sensor 4, and a controller reads the state of the sensor 4 to judge whether the cloth exists;
if no cloth exists, the sewing machine does not act;
if there is cloth, a control method is that a sewing operator sets the number of needles that the cloth advances before performing the automatic backstitch sewing operation according to a program, and after the cloth advances according to the set number of needles, a controller automatically controls the automatic backstitch sewing operation of the sewing machine when starting sewing. In this case, the number of needles for which the cloth is advanced before the automatic backstitch sewing operation is performed is also set to be suitable for sewing the tail portion. When setting, the setting can be carried out through buttons on the control panel. Of course, the operation of setting the number of needles for which the cloth is advanced before the automatic backstitch sewing operation is performed may be performed before the sewing operation. The specific operation is set according to actual conditions.
The other control mode is that the controller controls the sewing machine to automatically stop the needle, and a sewing operator manually presses a backstitch button to perform backstitch sewing operation during starting. The control mode is suitable for all sewing operators, and is particularly suitable for unskilled sewing operators.
(2) After finishing the backward sewing operation during the starting of sewing, the controller controls the sewing machine to continue the sewing operation.
(3) When the cloth is sewn to the tail part, the sensor 4 senses whether the cloth leaves the range of the sensor 4 again, and the controller reads the state of the sensor 4 again to judge whether the cloth leaves the range of the sensor 4;
if the cloth does not leave the range of the sensor 4, the sewing machine continues to sew.
If the cloth leaves the range of the sensor 4, two control modes are also provided, one mode is that the controller controls the sewing machine to automatically carry out the back stitch sewing action of the tail part after the cloth advances according to the set needle number before the back stitch sewing action is carried out according to the set needle number during the starting stitch.
The other is that the controller controls the sewing machine to stop the needle automatically, and the sewing operator presses the backstitch button manually to perform the backstitch sewing action of the tail part, and the control mode is suitable for all sewing operators and is particularly suitable for inexperienced sewing operators. After the back stitching sewing action of the tail part is finished, the whole sewing process is also finished.
The automatic reverse stitching control method solves the problems of cloth waste and low working efficiency caused by too early or too late needle stop when workers control reverse stitching in the prior art.
Further, the sensor 4 is arranged at the feed end of the needle board 3. Of course, other locations on the needle board 3 are possible. The position of the feed end of the needle plate 3 can reduce the influence of dust generated during sewing on the sensor 4. In addition, the sensor 4 of the present invention functions as: whether the cloth reaches the position needing the back stitching or not is detected, so that the sewing machine is controlled to automatically stop the needle or automatically back stitching, the purpose of full-automatic back stitching is finally achieved, and the working efficiency is improved.
Further, the sensor 4 is an infrared reflective sensor or a pressure sensor. The infrared reflection type sensor has high measurement accuracy and strong anti-interference capability, and is preferred in the embodiment. Of course, other sensors may be selected instead.
The invention also aims to provide a control device for the backstitch of the sewing machine, which comprises a controller and a sensor 4 arranged near a presser foot 3, wherein the sensor 4 senses the state of the cloth during the starting and the tail sewing, and the controller controls the automatic backstitch action or the automatic needle stopping action.
In particular, the sensor 4 is arranged at the feed end of the needle board. Of course, other locations on the needle board 3 are possible.
More specifically, the sensor 4 is an infrared reflective sensor or a pressure sensor. Of course, other sensors may be selected instead.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (4)
1. An automatic control method for backstitch of a sewing machine is characterized in that: the method comprises the following steps:
(1) when sewing, a sensor arranged near the presser foot senses whether cloth is put between the presser foot and the needle plate through the sensor, and a controller reads the state of the sensor to judge whether the cloth exists;
if the cloth exists, the sewing operator sets the number of needles of the cloth to advance before the automatic backstitch sewing action through the buttons on the control panel according to the program, and the controller automatically controls the automatic backstitch sewing action when the sewing machine starts sewing after the cloth advances according to the set number of needles;
or the controller controls the sewing machine to automatically stop the needle, and the sewing operator manually presses the backstitch button to perform backstitch sewing action during starting;
(2) after finishing the backward sewing action during starting sewing, the controller controls the sewing machine to continue sewing action;
(3) when the cloth is sewn to the tail part, the sensor senses whether the cloth leaves the range of the sensor again and the controller reads the state of the sensor again to judge whether the cloth leaves the range of the sensor;
if the cloth leaves the range of the sensor, the cloth advances by a certain needle number, the certain needle number is the needle number which is set in the step (1) and advances before the automatic backstitch sewing action is carried out, and the backstitch sewing action of the tail part is automatically carried out after the cloth advances according to the set needle number;
or the controller controls the sewing machine to automatically stop the needle, and the sewing operator manually presses the backstitch button to perform the backstitch sewing action of the tail part, thereby finishing the whole sewing process.
2. An automatic control method for backstitch of a sewing machine according to claim 1, characterized in that: the operation of setting the number of needles where the cloth advances before the automatic backstitch sewing operation by the sewing operator according to the program in the step (1) may be set before the sewing step.
3. An automatic control method for backstitch of a sewing machine according to claim 1, characterized in that: the sensor is arranged at the feed end of the needle plate.
4. An automatic control method for backstitch of a sewing machine according to claim 1, 2 or 3, characterized in that: the sensor is an infrared reflection type sensor or a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611210471.0A CN106835530B (en) | 2016-12-24 | 2016-12-24 | Automatic control method for backstitch of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611210471.0A CN106835530B (en) | 2016-12-24 | 2016-12-24 | Automatic control method for backstitch of sewing machine |
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| Publication Number | Publication Date |
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| CN106835530A CN106835530A (en) | 2017-06-13 |
| CN106835530B true CN106835530B (en) | 2020-04-07 |
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| CN201611210471.0A Active CN106835530B (en) | 2016-12-24 | 2016-12-24 | Automatic control method for backstitch of sewing machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107090669B (en) * | 2017-06-29 | 2020-04-10 | 杰克缝纫机股份有限公司 | Control system and method for automatic backstitch device of sewing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851831A (en) * | 2009-03-31 | 2010-10-06 | Juki株式会社 | Control device of sewing machine |
| CN103243495A (en) * | 2013-05-17 | 2013-08-14 | 新杰克缝纫机股份有限公司 | Auto-induction sewing structure and method of lockstitch sewing machine |
| CN103966778A (en) * | 2013-01-28 | 2014-08-06 | 贺欣机械厂股份有限公司 | Synchronous operation control method and system for automatic backlatching device on sewing equipment |
| CN104018297A (en) * | 2014-06-12 | 2014-09-03 | 新杰克缝纫机股份有限公司 | Intelligent sewing device and system |
| CN105386245A (en) * | 2015-12-29 | 2016-03-09 | 杰克缝纫机股份有限公司 | Sewing sensing device of sewing machine and sewing method |
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2016
- 2016-12-24 CN CN201611210471.0A patent/CN106835530B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851831A (en) * | 2009-03-31 | 2010-10-06 | Juki株式会社 | Control device of sewing machine |
| CN103966778A (en) * | 2013-01-28 | 2014-08-06 | 贺欣机械厂股份有限公司 | Synchronous operation control method and system for automatic backlatching device on sewing equipment |
| CN103243495A (en) * | 2013-05-17 | 2013-08-14 | 新杰克缝纫机股份有限公司 | Auto-induction sewing structure and method of lockstitch sewing machine |
| CN104018297A (en) * | 2014-06-12 | 2014-09-03 | 新杰克缝纫机股份有限公司 | Intelligent sewing device and system |
| CN105386245A (en) * | 2015-12-29 | 2016-03-09 | 杰克缝纫机股份有限公司 | Sewing sensing device of sewing machine and sewing method |
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Address after: 318000 no.1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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