CN114622359A - Embroidery machine embroidery thread tension control method - Google Patents
Embroidery machine embroidery thread tension control method Download PDFInfo
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- CN114622359A CN114622359A CN202210281753.9A CN202210281753A CN114622359A CN 114622359 A CN114622359 A CN 114622359A CN 202210281753 A CN202210281753 A CN 202210281753A CN 114622359 A CN114622359 A CN 114622359A
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- thread
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000009956 embroidering Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 13
- 229920000728 polyester Polymers 0.000 claims description 6
- 241000251468 Actinopterygii Species 0.000 claims description 3
- 241000218202 Coptis Species 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 244000062175 Fittonia argyroneura Species 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 239000008267 milk Substances 0.000 claims description 3
- 210000004080 milk Anatomy 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 3
- 238000009958 sewing Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides an embroidery machine embroidery thread tension control method. An embroidery machine embroidery thread tension control method comprises the following steps: setting a threshold range m of tension control through a control module; reading embroidery patterns and calculating the embroidery thread consumption of the current needle; controlling the thread feeding module to feed the thread with the matched thread feeding amount according to the embroidery thread using amount of the current needle for embroidery; acquiring an embroidery thread tension value in the embroidery process in real time through a tension detection module; comparing the embroidery thread tension value with a set threshold range of tension control of the embroidery thread; if the embroidery thread tension value does not exceed the threshold value range, repeating the step S4; if the embroidery thread tension value is higher than or lower than the upper limit of the threshold range, calculating the compensation amount c of the next stitch thread usage; and correcting the consumption of the next stitch embroidery thread according to the compensation quantity to obtain the thread feeding quantity of the next stitch, and controlling the thread feeding module to feed the thread to continue the embroidery. The invention achieves the consistency of thread tension during embroidering and ensures the quality of embroidery products; solves the problem of embroidery badness caused by thread 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 a thread adjusting nut, detection and adjustment cannot be automatically carried out in the actual embroidering process, and when different stitches or different fabrics are embroidered, a series of abnormal patterns such as pattern deformation, cloth shrinkage, thin cloth hollowing or thread throwing and the like often occur due to uneven tension, so that the product is not attractive, the quality is poor, and the product is even scrapped in batches in severe cases. In addition, the broken thread detection means of the existing embroidery machine is simple, the mode that a jumper spring and a wheel are used for detecting is mainly adopted, whether the broken thread exists is judged by judging whether the reel rotates, when the bottom thread is broken and the upper thread is embedded in the fabric and cannot be separated, the reel can be pulled all the time, the system cannot detect the broken thread, and finally the product is scrapped.
Disclosure of Invention
Based on the above background, the present invention provides a tension control method for embroidery threads of an embroidery machine, which adjusts the thread feeding amount in real time through tension detection and feedback calculation, realizes accurate control of the embroidery thread tension of the embroidery machine, and solves the problems in the background art.
In order to achieve the above object, the present invention provides the following technical solutions:
an embroidery machine embroidery thread tension control method comprises the following steps:
s1, setting a threshold range m of tension control through a control module;
s2, reading the embroidery patterns and calculating the embroidery thread consumption of the current needle;
s3, controlling a thread feeding module to feed threads with the matched thread feeding amount according to the thread feeding amount of the current needle for embroidering;
s4, acquiring an embroidery thread tension value in the embroidering process in real time through a tension detection module;
s5, comparing the embroidery thread tension value with the threshold value range of the tension control of the embroidery thread set in the step S1;
if the embroidery thread tension value does not exceed the threshold value range, repeating the step S4;
if the embroidery thread tension value is higher than the upper limit of the threshold range, calculating the compensation quantity c of the next stitch thread consumption by the following formula:
c＝[2×π×L×(β-α1)/360]×2；
in the formula, L is the length of the swing arm of the tension rod in the tension detection module, beta is the rotation angle of the swing arm of the tension rod relative to the detection original point when the needle is currently inserted, and alpha is1The 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 embroidery thread tension value is lower than the lower limit of the threshold range, calculating the compensation quantity c of the next stitch thread consumption by the following formula:
c＝[2×π×L×(β-α2)/360]×2；
in the formula, L is the length of the swing arm of the tension rod in the tension detection module, beta is the rotation angle of the swing arm of the tension rod relative to the detection original point when the needle is currently inserted, and alpha is2The 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 using amount of the next stitch embroidery thread according to the compensation amount calculated in the step S5 to obtain the thread feeding amount of the next stitch, controlling the thread feeding module to feed the thread to continue embroidery, 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 kinds of 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 stereoscopic.
Preferably, the tension control range n is set as follows according to the offset angle between the tension rod of different types of embroidery threads and the original position:
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 or 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 fish silk thread, the tension control range is 60-80 degrees;
when the embroidery thread is a human silk thread, the tension control range is 40-60 degrees;
when the embroidery thread is sewing thread, the tension control range is 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 after correction by the compensation amount is still lower than the lower limit of the threshold range, the control module starts to record the failure times that the embroidery thread tension value after correction still does not reach the lower limit of the threshold range, and when the failure times reach the preset value, if the embroidery thread tension value is still lower than the lower limit of the threshold range, the control module judges that the embroidery thread of the embroidery machine is in a thread breakage state, and the control module gives a 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 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 of the tension rod.
Preferably, 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.
Compared with the prior art, the invention has the following advantages:
the embroidery machine embroidery thread tension control method disclosed by the invention is used for detecting and adjusting the embroidery thread tension in real time based on the thread feeding module and the tension detecting module, so that the thread tension consistency during embroidery is achieved, and the quality of embroidery is ensured; corresponding different tension parameters are set for embroidery threads of different thread types and embroidery effects, so that the problem of poor embroidery caused by thread type difference is solved.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples. It is to be understood that the practice of the invention is not limited to the following examples, and that any variations and/or modifications may be made thereto without departing from the scope of the invention.
In the present invention, all parts and percentages are by weight, unless otherwise specified, and the equipment and materials used are commercially available or commonly used in the art. The methods in the following examples are conventional in the art unless otherwise specified. Unless otherwise indicated, the components or devices in the following examples are all common standard components or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through routine experimentation.
The embodiment of the invention discloses an embroidery machine embroidery thread tension control method, which comprises the following steps:
s1, setting a threshold value range m of tension control through a control module;
s2, reading the embroidery patterns and calculating the embroidery thread consumption of the current needle;
s3, controlling a thread feeding module to feed threads with the matched thread feeding amount according to the thread feeding amount of the current needle for embroidering;
s4, acquiring an embroidery thread tension value in the embroidering process in real time through a tension detection module;
s5, comparing the embroidery thread tension value with the threshold value range of the tension control of the embroidery thread set in the step S1;
if the embroidery thread tension value does not exceed the threshold value range, repeating the step S4;
if the embroidery thread tension value is higher than the upper limit of the threshold range, calculating the compensation quantity c of the next embroidery thread consumption by the following formula:
c＝[2×π×L×(β-α1)/360]×2；
in the formula, L is the length of the swing arm of the tension rod in the tension detection module, beta is the rotation angle of the swing arm of the tension rod relative to the detection original point when the needle is currently inserted, and alpha is1The 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 the moment, the embroidery thread tension 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 embroidery thread consumption of the next needle, so that the tension is reduced;
if the embroidery thread tension value is lower than the lower limit of the threshold range, calculating the compensation quantity c of the next stitch thread consumption by the following formula:
c＝[2×π×L×(β-α2)/360]×2；
in the formula, L is the length of the swing arm of the tension rod in the tension detection module, beta is the rotation angle of the swing arm of the tension rod relative to the detection original point when the needle is currently inserted, and alpha is2The 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 the moment, the embroidery thread tension is low, the calculated compensation value is a negative value, and the thread feeding amount is smaller when the thread feeding amount of the next needle is obtained by correcting the embroidery thread amount of the next needle, so that the tension is increased;
s6, correcting the using amount of the next stitch embroidery thread according to the compensation amount calculated in the step S5 to obtain the thread feeding amount of the next stitch, controlling the thread feeding module to feed the thread to continue embroidery, and repeating the steps S2-S6.
The threshold range m is given by the following equation:
m＝e×n；
wherein n is a tension control range based on different kinds of 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 stereoscopic.
The value of the tension control range n is as follows according to the offset angle between the tension rod of different embroidery threads and the original position:
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 or 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 fish silk thread, the tension control range is 60-80 degrees;
when the embroidery thread is a human silk thread, the tension control range is 40-60 degrees;
when the embroidery thread is sewing thread, the tension control range is 40-60 degrees.
By the method, the thread feeding amount of the thread feeding module is adjusted in real time, the tension of thread feeding at each time is controlled within a set range, the problems of thread take-up, thread throwing and other patterns of current embroidery are solved, thread damage can be reduced, thread breakage is reduced, and production efficiency is improved.
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 after correction by the compensation amount is still lower than the lower limit of the threshold range, the control module starts to record the failure times which are not yet reached to the lower limit of the threshold range after correction, and when the failure times reach the preset value, if the embroidery thread tension value is still lower than the lower limit of the threshold range, the control module judges that the embroidery thread of the embroidery machine is in a thread breakage state, and the control module gives a thread breakage alarm.
Through the scheme, the broken line detection is faster and more accurate, and the problem that the broken line cannot be detected for partial line types and cloth in the prior art is solved.
In the embodiment, the wire feeding module comprises a motor and a plurality of wire feeding wheels, and a clutch is arranged on each wire feeding wheel. The tension detection module comprises a tension rod, a rotating shaft, a magnet and a magnetic encoder, wherein the end 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 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, the embroidery thread firstly enters the tension detection module through the thread feeding module and finally penetrates into the embroidery needle. In this embodiment, the embedded control device is a single chip microcomputer.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. An 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 the embroidery patterns and calculating the embroidery thread consumption of the current needle;
s3, controlling a thread feeding module to feed threads with the matched thread feeding amount according to the thread feeding amount of the current needle for embroidering;
s4, acquiring an embroidery thread tension value in the embroidering process in real time through a tension detection module;
s5, comparing the embroidery thread tension value with the threshold value range of the tension control of the embroidery thread set in the step S1;
if the embroidery thread tension value does not exceed the threshold value range, repeating the step S4;
if the embroidery thread tension value is higher than the upper limit of the threshold range, calculating the compensation quantity C of the next stitch thread consumption by the following formula:
c＝[2×π×L×(β-α1)/360]×2；
in the formula, L is the length of the swing arm of the tension rod in the tension detection module, beta is the rotation angle of the swing arm of the tension rod relative to the detection original point when the needle is currently inserted, and alpha is1The 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 embroidery thread tension value is lower than the lower limit of the threshold range, calculating the compensation quantity c of the next stitch thread consumption by the following formula:
c＝[2×π×L×(β-α2)/360]×2；
wherein, L is the length of the swing arm of the tension rod in the tension detection module, beta is the rotation angle of the swing arm of the tension rod relative to the detection original point when the needle is at present, and alpha2The 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 using amount of the next stitch embroidery thread according to the compensation amount calculated in the step S5 to obtain the thread feeding amount of the next stitch, controlling the thread feeding module to feed the thread to continue embroidery, and repeating the steps S2-S6.
2. The embroidery machine embroidery thread tension control method according to claim 1, characterized in that: the threshold range m is obtained by the following formula:
m＝e×n；
wherein n is a tension control range based on different kinds of 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 stereoscopic.
3. The embroidery machine embroidery thread tension control method according to claim 2, characterized in that: the tension control range n takes values according to the offset angles of the tension rods of different types of embroidery threads and the original point position as follows:
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 or 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 fish silk thread, the tension control range is 60-80 degrees;
when the embroidery thread is a human silk thread, the tension control range is 40-60 degrees;
when the embroidery thread is sewing thread, the tension control range is 40-60 degrees.
4. The embroidery machine embroidery thread tension control method according to claim 1, characterized in that: 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 after correction by the compensation amount is still lower than the lower limit of the threshold range, the control module starts to record the failure times which are not yet reached to the lower limit of the threshold range after correction, and when the failure times reach the preset value, if the embroidery thread tension value is still lower than the lower limit of the threshold range, the control module judges that the embroidery thread of the embroidery machine is in a thread breakage state, and the control module gives a thread breakage alarm.
5. The embroidery machine embroidery thread tension control method according to claim 1, characterized in that: the wire feeding module comprises a motor and a plurality of wire feeding wheels, and each wire feeding wheel is provided with a clutch.
6. The embroidery machine embroidery thread tension control method according to claim 5, characterized in that: the tension detection module comprises a tension rod, a rotating shaft, a magnet and a magnetic encoder, wherein the end 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 of the tension rod.
7. The embroidery machine embroidery thread tension control method according to claim 6, characterized in that: 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.
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| CN202210281753.9A CN114622359B (en) | 2022-03-21 | 2022-03-21 | Embroidery thread tension control method of embroidery machine |
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| CN202210281753.9A CN114622359B (en) | 2022-03-21 | 2022-03-21 | Embroidery thread tension control method of embroidery machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114622359B (en) | 2023-05-26 |
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