CN114622359B - Embroidery thread tension control method of embroidery machine - Google Patents
Embroidery thread tension control method of embroidery machine Download PDFInfo
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- CN114622359B CN114622359B CN202210281753.9A CN202210281753A CN114622359B CN 114622359 B CN114622359 B CN 114622359B CN 202210281753 A CN202210281753 A CN 202210281753A CN 114622359 B CN114622359 B CN 114622359B
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- thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/08—Thread-tensioning arrangements
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C13/00—Auxiliary devices incorporated in embroidering machines, not otherwise provided for; Ancillary apparatus for use with embroidering machines
- D05C13/02—Counting, measuring, indicating, warning, or safety devices
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D15/00—Control of mechanical force or stress; Control of mechanical pressure
- G05D15/01—Control of mechanical force or stress; Control of mechanical pressure characterised by the use of electric means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention provides an embroidery thread tension control method of an embroidery machine. A thread tension control method for an embroidery machine, the method comprising the steps of: setting a threshold range m of tension control through a control module; reading the embroidery pattern and calculating the current embroidery thread consumption of the needle; controlling a thread feeding module to feed threads according to the current stitch thread consumption to embroider with the matched thread feeding quantity; the embroidery thread tension value in the embroidery process is obtained in real time through a tension detection module; comparing the embroidery thread tension value with a set threshold range of the embroidery thread tension control; if the embroidery thread tension value does not exceed the threshold value range, repeating the step S4; if the stitch tension value is higher or lower than the upper limit of the threshold range, calculating the compensation quantity c of the next stitch consumption; and correcting the consumption of the next stitch thread according to the compensation quantity to obtain the thread feeding quantity of the next stitch, and controlling the thread feeding module to feed threads to continue embroidering. The invention achieves the consistency of thread tension during embroidery and ensures the quality of embroidery; solves the problem of bad embroidery caused by thread variety difference.
Description
Technical Field
The invention relates to an embroidery machine control method, in particular to an embroidery machine embroidery thread tension control method, and belongs to the technical field of embroidery machines.
Background
The existing embroidery machine is mainly controlled by means of thread adjusting nuts, detection and adjustment cannot be automatically carried out in the actual embroidery process, when different stitches or different fabrics are embroidered, a series of pattern abnormal phenomena such as pattern deformation, cloth shrinkage, thin cloth breakage or thread throwing often occur due to uneven tension, so that the product is not attractive, the quality is poor, and even the product is scrapped in batches in severe cases. In addition, the broken thread detection means of the existing embroidery machine is simpler, a mode of wire jumper spring and wheel detection is mainly adopted, whether the broken thread is broken or not is judged by judging whether the wire reel rotates or not, but when the bottom thread is broken and the upper thread is embedded in the fabric and cannot be pulled out, the wire reel can be pulled all the time, the broken thread cannot be detected by the system, and finally the product is scrapped.
Disclosure of Invention
Based on the background, the invention aims to provide a embroidery machine embroidery thread tension control method, which adjusts the thread feeding amount in real time through tension detection and feedback calculation, realizes accurate control of the embroidery machine embroidery thread tension and solves the problems in the background technology.
In order to achieve the above object, the present invention provides the following technical solutions:
a thread tension control method for an embroidery machine, the method comprising the steps of:
s1, setting a threshold range m of tension control through a control module;
s2, reading embroidery patterns and calculating the current embroidery thread consumption of the needle;
s3, controlling a thread feeding module to feed threads according to the current stitch thread consumption to embroider with the matched thread feeding quantity;
s4, acquiring an embroidery thread tension value in the embroidery process in real time through a tension detection module;
s5, comparing the embroidery thread tension value with the threshold range of the embroidery thread tension control set in the step S1;
if the embroidery thread tension value does not exceed the threshold value range, repeating the step S4;
if the stitch tension value is higher than the upper limit of the threshold range, calculating the compensation quantity c of the next stitch consumption by the following formula:
c＝[2×π×L×(β-α 1 )/360]×2；
wherein L is the length of a tension rod swing arm in the tension detection module, beta is the rotation angle of the tension rod swing arm relative to the detection origin point when the needle is currently positioned, and alpha 1 The swing arm angle of the tension rod corresponding to the upper limit of the threshold range of the embroidery thread set in the step S1;
if the stitch tension value is lower than the lower limit of the threshold range, calculating the compensation quantity c of the next stitch consumption by the following formula:
c＝[2×π×L×(β-α 2 )/360]×2；
wherein L is the length of a tension rod swing arm in the tension detection module, beta is the rotation angle of the tension rod swing arm relative to the detection origin point when the needle is currently positioned, and alpha 2 The swing arm angle of the tension rod corresponding to the lower limit of the threshold range of the embroidery thread set in the step S1;
s6, correcting the consumption of the next stitch thread according to the compensation quantity calculated in the step S5 to obtain the thread feeding quantity of the next stitch, controlling the thread feeding module to feed threads to continue embroidering, and repeating the steps S2-S6.
Preferably, the threshold range m is obtained by the following formula:
m＝e×n；
wherein n is a tension control range based on different embroidery threads, e is an adjustment coefficient corresponding to different embroidery effects, the value range of e is 0.6-0.9 when the embroidery effect is compact, the value range of e is 0.9-1.1 when the embroidery effect is flat, and the value range of e is 1.1-1.5 when the embroidery effect is three-dimensional.
Preferably, the tension control range n is set as follows according to the deviation angle between the tension rod and the origin position of the different kinds of embroidery threads:
when the embroidery thread is a polyester thread, the tension control range is 50-70 degrees;
when the embroidery thread is a milk thread, the tension control range is 40-60 degrees;
when the embroidery thread is cotton thread, the tension control range is 40-60 degrees;
when the embroidery thread is a gold-silver thread, the tension control range is 30-50 degrees;
when the embroidery thread is polyester thread, the tension control range is 60-80 degrees;
when the embroidery thread is a fishing thread, the tension control range is 60-80 degrees;
when the embroidery thread is a man-machine thread, the tension control range is 40-60 degrees;
when the embroidery thread is a sewing thread, the tension control range takes a value of 40-60 degrees.
Preferably, when the embroidery thread tension value of the current needle is lower than the lower limit of the threshold range, if the embroidery thread tension value of the next needle thread after correction by the compensation amount is still lower than the lower limit of the threshold range, the control module starts recording failure times which still do not reach the lower limit of the threshold range after correction, and when the failure times reach a preset value, the control module judges that the embroidery thread of the embroidery machine is in a thread breakage state if the embroidery thread tension value is still lower than the lower limit of the threshold range, and the control module performs thread breakage alarm.
Preferably, the wire feeding module comprises a motor and a plurality of wire feeding wheels, and each wire feeding wheel is provided with a clutch.
Preferably, the tension detection module comprises a tension rod, a rotating shaft, a magnet and a magnetic encoder, wherein the end part of the tension rod is connected with one end of the rotating shaft, the other end of the rotating shaft is connected with the magnetic encoder through the magnet, and the rotating shaft penetrates through the end part of the tension rod.
Preferably, the control module comprises an embedded control device, and the clutch, the motor and the magnetic encoder are all electrically connected with the embedded control device.
Compared with the prior art, the invention has the following advantages:
according to the embroidery machine embroidery thread tension control method, the embroidery thread tension is detected and regulated in real time based on the thread feeding module and the tension detecting module, so that the consistency of the embroidery thread tension is achieved, and the quality of embroidery products is ensured; and setting corresponding different tension parameters for embroidery threads of different thread types and embroidery effects, so as to solve the problem of poor embroidery caused by thread type difference.
Detailed Description
The technical scheme of the invention is further specifically described by the following specific examples. It should be understood that the practice of the invention is not limited to the following examples, but is intended to be within the scope of the invention in any form and/or modification thereof.
In the present invention, unless otherwise specified, all parts and percentages are by weight, and the equipment, materials, etc. used are commercially available or are conventional in the art. The methods in the following examples are conventional in the art unless otherwise specified. The components and devices in the following examples are, unless otherwise indicated, all those components and devices known to those skilled in the art, and their structures and principles are known to those skilled in the art from technical manuals or by routine experimentation.
The embodiment of the invention discloses a embroidery machine embroidery thread tension control method, which comprises the following steps:
s1, setting a threshold range m of tension control through a control module;
s2, reading embroidery patterns and calculating the current embroidery thread consumption of the needle;
s3, controlling a thread feeding module to feed threads according to the current stitch thread consumption to embroider with the matched thread feeding quantity;
s4, acquiring an embroidery thread tension value in the embroidery process in real time through a tension detection module;
s5, comparing the embroidery thread tension value with the threshold range of the embroidery thread tension control set in the step S1;
if the embroidery thread tension value does not exceed the threshold value range, repeating the step S4;
if the stitch tension value is higher than the upper limit of the threshold range, calculating the compensation quantity c of the next stitch consumption by the following formula:
c＝[2×π×L×(β-α 1 )/360]×2；
wherein L is the length of a tension rod swing arm in the tension detection module, beta is the rotation angle of the tension rod swing arm relative to the detection origin point when the needle is currently positioned, and alpha 1 The swing arm angle of the tension rod corresponding to the upper limit of the threshold range of the embroidery thread set in the step S1; at this time, the tension of the embroidery thread is higher, the calculated compensation value is a positive value, and the thread feeding amount is increased when the thread feeding amount of the next needle is obtained by correcting the thread feeding amount of the next needle, so that the tension is reduced;
if the stitch tension value is lower than the lower limit of the threshold range, calculating the compensation quantity c of the next stitch consumption by the following formula:
c＝[2×π×L×(β-α 2 )/360]×2；
wherein L is the length of a tension rod swing arm in the tension detection module, beta is the rotation angle of the tension rod swing arm relative to the detection origin point when the needle is currently positioned, and alpha 2 The swing arm angle of the tension rod corresponding to the lower limit of the threshold range of the embroidery thread set in the step S1; at this time, the stitch tension is low, the calculated compensation value is a negative value, and the thread feeding amount of the next needle is smaller when the thread feeding amount of the next needle is obtained by correcting the using amount of the next needle stitch, so that the tension is increased;
s6, correcting the consumption of the next stitch thread according to the compensation quantity calculated in the step S5 to obtain the thread feeding quantity of the next stitch, controlling the thread feeding module to feed threads to continue embroidering, and repeating the steps S2-S6.
The threshold range m is found by the following formula:
m＝e×n；
wherein n is a tension control range based on different embroidery threads, e is an adjustment coefficient corresponding to different embroidery effects, the value range of e is 0.6-0.9 when the embroidery effect is compact, the value range of e is 0.9-1.1 when the embroidery effect is flat, and the value range of e is 1.1-1.5 when the embroidery effect is three-dimensional.
The tension control range n takes the following values according to the offset angles of the tension rods of different embroidery threads and the original point positions:
when the embroidery thread is a polyester thread, the tension control range is 50-70 degrees;
when the embroidery thread is a milk thread, the tension control range is 40-60 degrees;
when the embroidery thread is cotton thread, the tension control range is 40-60 degrees;
when the embroidery thread is a gold-silver thread, the tension control range is 30-50 degrees;
when the embroidery thread is polyester thread, the tension control range is 60-80 degrees;
when the embroidery thread is a fishing thread, the tension control range is 60-80 degrees;
when the embroidery thread is a man-machine thread, the tension control range is 40-60 degrees;
when the embroidery thread is a sewing thread, the tension control range takes a value of 40-60 degrees.
Through the method, the wire feeding quantity of the wire feeding module is regulated in real time, the tension of each wire feeding is controlled within a set range, the pattern problems of tight wire winding, wire throwing and the like of the conventional embroidery are solved, meanwhile, wire damage can be reduced, wire breakage is reduced, and the production efficiency is improved.
When the current stitch tension value is lower than the lower limit of the threshold range, if the stitch tension value of the next stitch thread after correction by the compensation amount is still lower than the lower limit of the threshold range, the control module starts recording failure times which still do not reach the lower limit of the threshold range after correction, and when the failure times reach a preset value, the control module judges that the stitch of the embroidery machine is in a broken state if the stitch tension value is still lower than the lower limit of the threshold range, and the control module gives a broken alarm.
Through above-mentioned scheme for broken string detects more quick and accurate, solves among the prior art to the unable condition of detecting broken string of some line types and cloth.
In this embodiment, send the line module to include motor and a plurality of wire feeding wheel, all be equipped with the clutch on every wire feeding wheel. The tension detection module comprises a tension rod, a rotating shaft, a magnet and a magnetic encoder, wherein the end part of the tension rod is connected with one end of the rotating shaft, the other end of the rotating shaft is connected with the magnetic encoder through the magnet, and the rotating shaft penetrates through the end part of the tension rod. The control module comprises an embedded control device, and the clutch, the motor and the magnetic encoder are electrically connected with the embedded control device, and the embroidery threads firstly enter the tension detection module through the thread feeding module and finally penetrate into the embroidery needle. In this embodiment, the embedded control device is a single-chip microcomputer.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (4)
1. A embroidery machine embroidery thread tension control method is characterized in that: the method comprises the following steps:
s1, setting a threshold range m of tension control through a control module;
s2, reading embroidery patterns and calculating the current embroidery thread consumption of the needle;
s3, controlling a thread feeding module to feed threads according to the current stitch thread consumption to embroider with the matched thread feeding quantity;
s4, acquiring an embroidery thread tension value in the embroidery process in real time through a tension detection module;
s5, comparing the embroidery thread tension value with the threshold range of the embroidery thread tension control set in the step S1;
if the embroidery thread tension value does not exceed the threshold value range, repeating the step S4;
if the stitch tension value is higher than the upper limit of the threshold range, calculating the compensation quantity c of the next stitch consumption by the following formula:
c＝[2×π×L×(β-α 1 )/360]×2；
wherein L is the length of a tension rod swing arm in the tension detection module, beta is the rotation angle of the tension rod swing arm relative to the detection origin point when the needle is currently positioned, and alpha 1 The swing arm angle of the tension rod corresponding to the upper limit of the threshold range of the embroidery thread set in the step S1;
if the stitch tension value is lower than the lower limit of the threshold range, calculating the compensation quantity c of the next stitch consumption by the following formula:
c＝[2×π×L×(β-α 2 )/360]×2；
wherein L is the length of a tension rod swing arm in the tension detection module, beta is the rotation angle of the tension rod swing arm relative to the detection origin point when the needle is currently positioned, and alpha 2 The swing arm angle of the tension rod corresponding to the lower limit of the threshold range of the embroidery thread set in the step S1;
s6, correcting the consumption of the next stitch thread according to the compensation quantity calculated in the step S5 to obtain the thread feeding quantity of the next stitch, controlling the thread feeding module to feed threads to continue embroidering, and repeating the steps S2-S6;
wherein the threshold range m is derived by the following formula:
m＝e×n；
wherein n is a tension control range based on different embroidery threads, e is an adjustment coefficient corresponding to different embroidery effects, the value range of e is 0.6-0.9 when the embroidery effects are compact, the value range of e is 0.9-1.1 when the embroidery effects are flat, and the value range of e is 1.1-1.5 when the embroidery effects are three-dimensional;
the tension control range n takes the following values according to the offset angles of tension rods of different embroidery threads and the original point positions: when the embroidery thread is a polyester thread, the tension control range is 50-70 degrees;
when the embroidery thread is a milk thread, the tension control range is 40-60 degrees;
when the embroidery thread is cotton thread, the tension control range is 40-60 degrees;
when the embroidery thread is a gold-silver thread, the tension control range is 30-50 degrees;
when the embroidery thread is polyester thread, the tension control range is 60-80 degrees;
when the embroidery thread is a fishing thread, the tension control range is 60-80 degrees;
when the embroidery thread is a man-machine thread, the tension control range is 40-60 degrees;
when the embroidery thread is a sewing thread, the tension control range is 40-60 degrees;
when the current embroidery thread tension value is lower than the lower limit of the threshold range, if the embroidery thread tension value of the next embroidery thread after correction by the compensation amount is still lower than the lower limit of the threshold range, the control module starts recording failure times which still do not reach the lower limit of the threshold range after correction, and when the failure times reach a preset value, the control module judges that the embroidery thread of the embroidery machine is in a thread breakage state if the embroidery thread tension value is still lower than the lower limit of the threshold range, and the control module performs thread breakage alarm.
2. The embroidery machine thread tension control method as recited in claim 1, wherein: the wire feeding module comprises a motor and a plurality of wire feeding wheels, and each wire feeding wheel is provided with a clutch.
3. The embroidery machine thread tension control method as recited in claim 2, wherein: the tension detection module comprises a tension rod, a rotating shaft, a magnet and a magnetic encoder, wherein the end part of the tension rod is connected with one end of the rotating shaft, the other end of the rotating shaft is connected with the magnetic encoder through the magnet, and the rotating shaft penetrates through the end part of the tension rod.
4. A method for controlling thread tension of an embroidery machine according to claim 3, wherein: the control module comprises an embedded control device, and the clutch, the motor and the magnetic encoder are all electrically connected with the embedded control device.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333173A (en) * | 1998-05-22 | 1999-12-07 | Juki Corp | Tension control device of sewing machine |
| JP2002085871A (en) * | 2000-09-20 | 2002-03-26 | Aisin Seiki Co Ltd | Embroidery machine |
| CN101538786A (en) * | 2009-02-13 | 2009-09-23 | 永嘉县德宝机械有限公司 | Multifunctional smart embroidery machine head of computerized embroidery machine |
| WO2013070038A1 (en) * | 2011-11-11 | 2013-05-16 | 썬스타알앤씨 주식회사 | Tension adjustment apparatus, embroidery machine head including same, and tension control apparatus of embroidery machine adapted therefor |
| KR20130107732A (en) * | 2012-03-23 | 2013-10-02 | 주식회사 썬스타 | Method for setting thread tension in embroidering machine |
| KR20140049213A (en) * | 2012-10-17 | 2014-04-25 | 주식회사 썬스타 | Method for setting thread tension of thread tension regulation apparatus in embroidering machine and embrodering machine |
| CN105332177A (en) * | 2015-12-02 | 2016-02-17 | 深圳思瑞普科技有限公司 | Method for automatically adjusting tension of embroidery threads of embroidery machine |
| CN109402892A (en) * | 2018-10-22 | 2019-03-01 | 北京大豪科技股份有限公司 | Line tension control method, device and the storage medium of embroidery machine needle position |
| CN110512374A (en) * | 2019-09-02 | 2019-11-29 | 浙江镨美科智能刺绣设备有限公司 | A kind of embroidery machine embroider line tension control system, method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1226254B (en) * | 1987-07-14 | 1990-12-27 | Tokai Ind Sewing Machine | Embroidery machine control |
| CN102505381A (en) * | 2011-11-22 | 2012-06-20 | 惠州神田精密机械有限公司 | Real-time monitoring method and monitoring system for thread condition of computerized embroidery machine |
| CN202989527U (en) * | 2012-11-14 | 2013-06-12 | 深圳思瑞普科技有限公司 | Computerized embroidery machine embroidery thread tension adjustment device |
| CN108861819A (en) * | 2018-06-01 | 2018-11-23 | 广州亿图自动控制系统有限公司 | Wind winding displacement automatic compensating method |
-
2022
- 2022-03-21 CN CN202210281753.9A patent/CN114622359B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333173A (en) * | 1998-05-22 | 1999-12-07 | Juki Corp | Tension control device of sewing machine |
| JP2002085871A (en) * | 2000-09-20 | 2002-03-26 | Aisin Seiki Co Ltd | Embroidery machine |
| CN101538786A (en) * | 2009-02-13 | 2009-09-23 | 永嘉县德宝机械有限公司 | Multifunctional smart embroidery machine head of computerized embroidery machine |
| WO2013070038A1 (en) * | 2011-11-11 | 2013-05-16 | 썬스타알앤씨 주식회사 | Tension adjustment apparatus, embroidery machine head including same, and tension control apparatus of embroidery machine adapted therefor |
| KR20130107732A (en) * | 2012-03-23 | 2013-10-02 | 주식회사 썬스타 | Method for setting thread tension in embroidering machine |
| KR20140049213A (en) * | 2012-10-17 | 2014-04-25 | 주식회사 썬스타 | Method for setting thread tension of thread tension regulation apparatus in embroidering machine and embrodering machine |
| CN105332177A (en) * | 2015-12-02 | 2016-02-17 | 深圳思瑞普科技有限公司 | Method for automatically adjusting tension of embroidery threads of embroidery machine |
| CN109402892A (en) * | 2018-10-22 | 2019-03-01 | 北京大豪科技股份有限公司 | Line tension control method, device and the storage medium of embroidery machine needle position |
| CN110512374A (en) * | 2019-09-02 | 2019-11-29 | 浙江镨美科智能刺绣设备有限公司 | A kind of embroidery machine embroider line tension control system, method |
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