CN102634936B - Method for assisting thread clamping electromagnet to improve sewing stitches - Google Patents
Method for assisting thread clamping electromagnet to improve sewing stitches Download PDFInfo
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- CN102634936B CN102634936B CN201210064536.0A CN201210064536A CN102634936B CN 102634936 B CN102634936 B CN 102634936B CN 201210064536 A CN201210064536 A CN 201210064536A CN 102634936 B CN102634936 B CN 102634936B
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- presser feet
- thread
- driving mechanism
- presser foot
- sewing
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Abstract
The invention relates to the technical field of sewing machine control, particularly to a method for assisting a thread clamping electromagnet to improve sewing stitches. The method comprises the following steps that: a speed controller provides a starting signal for a singlechip; the signal chip drives a main shaft motor to start running; the singlechip monitors position information provided by a position detector; when arriving in a wind-up position, the singlechip drives a presser foot driving mechanism to operate, and then a presser foot is lifted to release a thread end pressed by the presser foot so that a rotating shuttle winds up the thread smoothly; the thread clamping electromagnet clamps the sewing thread when the pressor foot is lifted; after passing the wind-up position, the singlechip stops the action of the presser foot driving mechanism to release the presser foot; and simultaneously, the action that the thread clamping electromagnet releases the sewing wire is finished and normal sewing stage is started. The method thoroughly eliminates the thread break phenomenon and suitable for the improvement of the machine types with the thread clamping electromagnet; and multiple options can be provided for the presser foot driving mechanism for lifting the presser foot.
Description
technical field:
the present invention relates to Sewing machines control technology field, be specifically related to the control technology field of stitching sewing machine effect, further relate to a kind of method that auxiliary clamp electromagnet improves sewing thread trace.
background technology:
along with the development of sewing technology, the functions such as Sewing machines reinforcing automatically, automatic shearing, automatic take-up, automatic needle-foot-lifting are universal.No matter be manual trimming or automatic shearing, the basic configuration of Sewing machines all comprises single-chip microcomputer, speed regulator, position detector, spindle motor, presser feet and presser feet driving mechanism.In Sewing machines work, if the end of a thread is crushed under pressing sole after trimming, when making next time, the upper surface of cloth, the running position of making stitching can leave the end of a thread.For attractive in appearance, often need manually excessive thread ends to be cut.If be equipped with automatic take-up, after trimming, utilize take-up function that the end of a thread is picked out below presser feet, when making next time, the lower surface that the end of a thread can be brought to cloth stashes like this.After but if suture pushed down by presser feet, owing to there being certain pressure, just upper thread the end of a thread cannot be received below sewing, cause retaining the end of a thread above sewing, need manually prune.
in order to address this problem, in the flat seam machine that is provided with presser feet driving mechanism (presser foot lifter electromagnet), be equipped with clamp electromagnet, for the end of a thread being hidden within to cloth lower surface, can make when initial, adhesive clamp electromagnet, clamps other end suture.When making, the end of a thread will be taken to sewing lower surface by bottom line.If but sewing is crossed thin or suture intensity when weak, suture is clamped by clamp electromagnet, the end of a thread is pushed down by presser feet, now makes or is easy to occur broken string.That is to say, although this solution has reduced the phenomenon of broken string, the generation that can not stop this problem.
summary of the invention:
the present invention will provide a kind of auxiliary clamp electromagnet to improve the method for sewing thread trace, is prone to the problem of broken string phenomenon when overcoming the sewing that prior art exists.
the problem existing in order to overcome prior art, solution provided by the invention is: a kind of auxiliary clamp electromagnet improves the method for sewing thread trace, by speed regulator, to single-chip microcomputer, provide enabling signal, MCU driving spindle motor brings into operation, the positional information that microcomputer monitoring position detector provides, after arriving take-up position, the action of MCU driving presser feet driving mechanism, presser feet lifts, release is pressed in the end of a thread below presser feet, make the smooth take-up of rotating shuttle, when presser feet lifts, clamp electromagnet is clamped suture; When finish take-up position, single-chip microcomputer stops the action of presser feet driving mechanism, discharges presser feet, and while clamp electromagnet unclamps suture and moved, and enters normally and makes the stage.
above-mentioned presser feet driving mechanism is electromagnet mechanism.
above-mentioned presser feet driving mechanism is stepper motor mechanism.
above-mentioned single-chip microcomputer model is: MC56F8037VLH or dsPIC30F4011S or dsPIC30F4012S.
compared with prior art, advantage of the present invention is:
1, thoroughly eliminated broken string phenomenon: on the action basis of original clamp electromagnet, increased the control to presser feet driving mechanism, effectively realized the function of having hidden the end of a thread, thoroughly eliminated broken string phenomenon simultaneously.Control method is after withdrawal of needle, and clamp electromagnet is clamped suture, carries out automatic needle-foot-lifting action simultaneously, make presser feet lift certain altitude, like this when making, because the end of a thread is unclamped by presser feet, therefore can not cause broken string, the end of a thread also can be taken to sewing lower surface by bottom line smoothly.
what 2, adopt can have multiple choices for lifting the presser feet driving mechanism of presser feet.
(1) utilizing electromagnet mechanism is the easiest way, the presser feet driving mechanism being equipped with on a lot of types is exactly electromagnet mechanism, this mechanism coordinates the inventive method can realize the function that sewing is hidden in to sewing lower surface, but also the structure problem because of self exists some problems, because electromagnet mechanism can not be controlled presser feet raising height, therefore at the initial presser feet of making, lift when higher, there will be the problem of the inhomogeneous even feed direction of feeding mistake.
(2) utilize stepper motor mechanism to replace electromagnet mechanism to control lifting and the decline of presser feet, can effectively guarantee that pressure foot lifting arrives according to the thin and thick of sewing and discharge the end of a thread but still the normal height of feeding, so both can guarantee the end of a thread to be hidden in sewing lower surface, and also can guarantee normal feeding.Therefore utilizing stepper motor mechanism is the optimal selection that the method realizes as presser feet driving mechanism.
3, the inventive method is suitable to there being the transformation of clamp electromagnet type: this control method can thoroughly solve broken string problem, is particularly suitable for transforming with the type of clamp electromagnet.Use after the method, the take-up amount of upper thread is improved, and is 90mm to the maximum, is much higher than the take-up amount of traditional 40mm; When upper thread is pressed in below presser feet, upper thread take-up amount also can reach 50mm, and applicable presser feet is more extensive.
accompanying drawing explanation:
fig. 1 is the running environment structural representation of the inventive method.
description of reference numerals is as follows:
1-speed regulator, 2-position detector, 3-single-chip microcomputer, 4-spindle motor, 5-presser feet driving mechanism, 6-presser feet, 7-clamp electromagnet.
the specific embodiment:
below in conjunction with accompanying drawing, the present invention is described in detail.
referring to Fig. 1, the type of the inventive method application, comprises single-chip microcomputer 3, speed regulator 1, position detector 2, spindle motor 4, presser feet 6, presser feet driving mechanism 5 and clamp electromagnet 7.
a kind of auxiliary clamp electromagnet improves the method for sewing thread trace, comprise following step, by speed regulator 1, to single-chip microcomputer 3, provide enabling signal, single-chip microcomputer 3 drives spindle motor 4 bring into operation, the positional information that single-chip microcomputer 3 monitoring position detectors 2 provide, after arriving take-up position, single-chip microcomputer 3 drives 5 actions of presser feet driving mechanism, and presser feet 6 lifts, release is pressed in presser feet 6 the end of a thread below, make the smooth take-up of rotating shuttle, when presser feet 6 lifts, clamp electromagnet 7 is clamped suture.When finish take-up position, single-chip microcomputer 3 stops the action of presser feet driving mechanism 5, discharges presser feet 6, and while clamp electromagnet 7 unclamps suture and moved, and enters normally and makes the stage.
Claims (1)
1. an auxiliary clamp electromagnet improves the method for sewing thread trace, it is characterized in that: by speed regulator (1), to single-chip microcomputer (3), provide enabling signal, single-chip microcomputer (3) drives spindle motor (4) brings into operation, the positional information that single-chip microcomputer (3) monitoring position detector (2) provides, after arriving take-up position, single-chip microcomputer (3) drives presser feet driving mechanism (5) action, presser feet (6) lifts, release is pressed in presser feet (6) the end of a thread below, make the smooth take-up of rotating shuttle, when presser feet (6) lifts, clamp electromagnet (7) is clamped suture; When finish take-up position, single-chip microcomputer (3) stops the action of presser feet driving mechanism (5), discharges presser feet (6), and while clamp electromagnet (7) unclamps suture and moved, and enters normally and makes the stage;
Above-mentioned presser feet driving mechanism (5) is electromagnet mechanism;
Above-mentioned presser feet driving mechanism (5) is stepper motor mechanism;
Above-mentioned single-chip microcomputer (3) model is: MC56F8037VLH or dsPIC30F4011S or dsPIC30F4012S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210064536.0A CN102634936B (en) | 2012-03-13 | 2012-03-13 | Method for assisting thread clamping electromagnet to improve sewing stitches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210064536.0A CN102634936B (en) | 2012-03-13 | 2012-03-13 | Method for assisting thread clamping electromagnet to improve sewing stitches |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102634936A CN102634936A (en) | 2012-08-15 |
| CN102634936B true CN102634936B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210064536.0A Active CN102634936B (en) | 2012-03-13 | 2012-03-13 | Method for assisting thread clamping electromagnet to improve sewing stitches |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518365A (en) * | 2017-09-18 | 2019-03-26 | 浙江中捷缝纫科技有限公司 | Presser foot lifter control method, device, storage medium and the processor of sewing machine |
| CN110130013A (en) * | 2018-02-08 | 2019-08-16 | 浙江中捷缝纫科技有限公司 | The control method and sewing machine of sewing machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424451A (en) * | 2001-12-13 | 2003-06-18 | 重机公司 | Buttonhole stitching machine |
| CN101532223A (en) * | 2009-04-17 | 2009-09-16 | 西安标准工业股份有限公司 | Automatic braid-cutting device and working method for sewing of overedging machine |
| CN201437571U (en) * | 2009-06-19 | 2010-04-14 | 陕西银星科技有限公司 | Magnetic type speed regulator of sewing machine control system |
-
2012
- 2012-03-13 CN CN201210064536.0A patent/CN102634936B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1424451A (en) * | 2001-12-13 | 2003-06-18 | 重机公司 | Buttonhole stitching machine |
| CN101532223A (en) * | 2009-04-17 | 2009-09-16 | 西安标准工业股份有限公司 | Automatic braid-cutting device and working method for sewing of overedging machine |
| CN201437571U (en) * | 2009-06-19 | 2010-04-14 | 陕西银星科技有限公司 | Magnetic type speed regulator of sewing machine control system |
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| CN102634936A (en) | 2012-08-15 |
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