CN102587049B - The automatic thread tensioning mechanism of sewing thickness can be experienced - Google Patents
The automatic thread tensioning mechanism of sewing thickness can be experienced Download PDFInfo
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- CN102587049B CN102587049B CN201110008040.7A CN201110008040A CN102587049B CN 102587049 B CN102587049 B CN 102587049B CN 201110008040 A CN201110008040 A CN 201110008040A CN 102587049 B CN102587049 B CN 102587049B
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- stringing
- sewing
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- sewing thickness
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Abstract
The present invention relates to industrial flat bed sewing machine.Can experience an automatic thread tensioning mechanism for sewing thickness, mainly comprise the tension disk be fixed on front side of head of sewing machine, the compressor arm of presser feet is equipped with in lower end, also has a sewing thickness receptor, a servo-actuated stringing frame and two stringing pins with.Described sewing thickness receptor is installed on described compressor arm, and there is the curved surface of a vertical direction its side.The fulcrum of described servo-actuated stringing frame is hubbed on the vertical shaft in head, and its one end is the idle rod near the curved surface being affixed on described sewing thickness receptor, is stringing face between described fulcrum and idle rod.Two stringing pins are slidably installed in the guide hole on enclosure wall, and their rear end is positioned at head, stringing face near described servo-actuated stringing frame, and their front end is positioned at outside head, is tight against the back side of the rear clamp of described tension disk.Automatic thread tensioning mechanism of the present invention, when sewing thickness changes within 7 ㎜, the pressure of its suture all can compensate by automatic synchronization, improves sewing quality and sewing efficiency.
Description
Technical field
The present invention relates to a kind of industrial sewing flat seam machine, be specifically related to the thread tensioning mechanism of flat seam machine.
Background technology
General flat seam machine, in order to the tension force of energy Suture lines adjustment, all in the convenient operation part of head, as established a tension disk on front side of head, is carried out the tension force of Suture lines adjustment by adjustment tension disk by operative employee.As shown in Figure 1, general clamp 100, by rear to front by tension disk seat 101, yarn take-up spring 102, clamp screw 103, forward and backward clamp 105,104, thread tension releasing disc 106, line ball spring 107, limiting plate 108, tension regulating thumb nut 109 is formed.Suture is clipped between forward and backward clamp 105,104, the pressure of its tension force by regulating tension regulating thumb nut 109 to regulate line ball spring 107 pairs of clamps.But by manually adjusting tension disk, be difficult to adapt to sewing thickness change suddenly and frequently, as multilayer seam of sewing, the seam that folds, inlay seam etc. time, the rhythm that artificial adjustment cannot catch up with sewing varied in thickness will produce the quality problems such as bouncing pilotage, flotation line, affect production efficiency and sewing quality, even cause and do over again or scrap.Therefore, operating personnel wish that flush joint function has the function according to the automatic Suture lines adjustment clamping force of the thickness of sewing especially, particularly can have automatic stringing function when sewing is thickening.
Summary of the invention
The object of the invention is to propose a kind of be applicable to various flat seam machine can according to the mechanism of the automatic stringing of sewing thickness, this mechanism is by the sewing thickness receptor of an energy perception sewing varied in thickness, and carry out stringing operation accordingly, increase the clamping force of tension disk, overcome the deficiencies in the prior art.
The present invention by the following technical solutions.
Can experience an automatic thread tensioning mechanism for sewing thickness, mainly comprise the tension disk be fixed on front side of head of sewing machine, the compressor arm of presser feet is equipped with in lower end, characterized by further comprising: a sewing thickness receptor, a servo-actuated stringing frame and two stringing pins.
Described sewing thickness receptor is installed on described compressor arm, and there is the curved surface of a vertical direction its side; This receptor, with the lifting of sewing thickness, can experience the change of sewing thickness.
The fulcrum of described servo-actuated stringing frame is hubbed on the stringing frame vertical shaft in head, and one end of this stringing frame is the idle rod near the curved surface being affixed on described sewing thickness receptor, is stringing face between described fulcrum and idle rod; When described servo-actuated stringing frame accept described sewing thickness receptor curved surface signal after namely around its spot wobble.
Two stringing pins are slidedly arranged in the guide hole on enclosure wall, and their rear end is positioned at head, stringing face near described servo-actuated stringing frame, and their front end is positioned at outside head, is tight against the back side of the rear clamp of described tension disk.When described servo-actuated stringing frame increases with sewing thickness and swings, thrust is executed at this two stringings pin back side to rear clamp, thus increases the clamping force of tension disk, reaches the object of stringing.
Further, the shank slide block guide rail that one supplies shank slide block movement is equipped with in head due to general flat seam machine, its position is just between tension disk and described sewing thickness receptor, therefore the stringing frame vertical shaft supporting described stringing frame can be located at the side of this shank slide block guide rail, can make full use of the expensive real estate in head like this.
The invention has the advantages that: (1) make flat seam machine add automatic stringing function by setting up a sewing thickness receptor, when sewing thickness changes within 7 ㎜, the pressure of its suture all can be compensated by automatic synchronization, thus improve sewing quality and sewing efficiency, improve the competitiveness of flat seam machine product.(2) adopt full mechanical, be installed on dexterously in existing head space, and structure is simple, cheap, it is convenient to implement, and adjustment is easy, wide application.
Accompanying drawing explanation
Fig. 1 is the STRUCTURE DECOMPOSITION figure of the tension disk of prior art.
Fig. 2 is the STRUCTURE DECOMPOSITION figure of embodiments of the invention 1.
Fig. 3 is the STRUCTURE DECOMPOSITION figure of embodiments of the invention 2.
In figure: 100 tension disks, 101 tension disk seats, 102 yarn take-up springs, 103 clamp screws, clamp after 104, clamp before 105,106 thread tension releasing discs, 107 line ball springs, 108 limiting plates, 109 tension regulating thumb nuts, 110 stringing pins, 201 compress pole spring, 202 presser feets, 203 compressor arm saddles, 205 sewing thickness receptors, 207 compressor arms, 209 shank slide block guide rails, 210 servo-actuated stringing framves, 211 stringing frame vertical shafts.
Detailed description of the invention
Now the invention will be further described in conjunction with the embodiments.
Embodiment 1
As Fig. 2.Mainly comprise the tension disk 100 be fixed on front side of head in former flat seam machine, the compressor arm 207 of presser feet is equipped with in lower end, also comprises the servo-actuated stringing frame 210 of a sewing thickness receptor 205, one and two stringing pin 110a and 110b.
Tension disk 100 is located at front side, the convenient operation place of flat seam machine head, and by tension disk seat 101, yarn take-up spring 102, clamp screw 103, forward and backward clamp 105,104, thread tension releasing disc 106, line ball spring 107, limiting plate 108, tension regulating thumb nut 109 is formed.
Sewing thickness receptor 205 is fixedly arranged on described compressor arm 207, the below of compressor arm saddle 203, and there is the curved surface 205a of a vertical direction its side.This receptor, with the lifting of sewing thickness, can experience the change of sewing thickness.
The fulcrum of servo-actuated stringing frame 210 is hubbed on the vertical shaft 211 that in head, vertical direction is arranged, and its one end is the idle rod 210c of the curved surface 205a being close to described sewing thickness receptor, is stringing face 210b between described fulcrum and idle rod.When described servo-actuated stringing frame accept described sewing thickness receptor curved surface 205a signal after namely around its spot wobble.
Two stringing pin 110a and 110b are slidably installed in the guide hole on enclosure wall, and their rear end is positioned at head, stringing face 210b near described servo-actuated stringing frame, and their front end is positioned at outside head, is tight against the back side of the rear clamp 104 of described tension disk 100.When described servo-actuated stringing frame 210 increases with sewing thickness and swings, thrust is executed at this two stringings pin back side to rear clamp 104, thus increases the clamping force of tension disk, reaches the object of stringing.
Embodiment 2
As Fig. 3.Be equipped with shank slide block guide rail 209 in the head of general flat seam machine, its position is just between compressor arm 207 and tension disk 100.Compared with embodiment one, described servo-actuated stringing frame 210 can be hubbed at this shank slide block guide rail 209 side.Particularly, vertically establish two axle ear 209a in nearly tension disk 100 side of shank slide block guide rail 209, stringing frame vertical shaft 211 is just located in two axle ear 209a, and servo-actuated stringing frame 210 is hubbed on this vertical shaft 211.So more sufficiently and reasonably can utilize the confined space in head.Remainder is all identical with embodiment one, repeats no more.
The course of work of the present invention is: in sewing, when running into thicker sewing, presser feet 202 can raise and compressor arm 207 is raised, sewing thickness receptor 205 also increases, its curved surface 205a promotes the idle rod 210c of servo-actuated stringing frame, make described servo-actuated stringing frame 210 around its spot wobble, and push away before two stringing pins 110, cause two stringing pin systems are pressed in the back side of rear clamp 104, so this thrust makes to hold between forward and backward two clamps tighter, the tension force of suture is increased, thus reaches the object of stringing.
Claims (1)
1. can experience an automatic thread tensioning mechanism for sewing thickness, comprise the tension disk (100) be fixed on front side of head of sewing machine, the compressor arm (207) of presser feet is equipped with in lower end, characterized by further comprising:
One sewing thickness receptor (205), a servo-actuated stringing frame (210) and two stringing pins (110a, 110b);
Described sewing thickness receptor (205) is installed on described compressor arm (207), and there is the curved surface (205a) of a vertical direction its side; This receptor, with the lifting of sewing thickness, can experience the change of sewing thickness;
The fulcrum of described servo-actuated stringing frame (210) is hubbed on the vertical shaft (211) in head, its one end is the idle rod (210c) near the curved surface (205a) being affixed on described sewing thickness receptor, is stringing face (210b) between described fulcrum and idle rod; When described servo-actuated stringing frame accept described sewing thickness receptor curved surface (205a) signal after namely around its spot wobble;
Two stringing pins (110a, 110b) are slidably installed in the guide hole on enclosure wall, their rear end is positioned at head, stringing face (210b) near described servo-actuated stringing frame, their front end is positioned at outside head, is tight against the back side of the rear clamp (104) of described tension disk (100); When described servo-actuated stringing frame increases with sewing thickness and swings, thrust is executed at this two stringings pin back side to rear clamp (104), thus increases the clamping force of tension disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110008040.7A CN102587049B (en) | 2011-01-14 | 2011-01-14 | The automatic thread tensioning mechanism of sewing thickness can be experienced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110008040.7A CN102587049B (en) | 2011-01-14 | 2011-01-14 | The automatic thread tensioning mechanism of sewing thickness can be experienced |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102587049A CN102587049A (en) | 2012-07-18 |
| CN102587049B true CN102587049B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110008040.7A Expired - Fee Related CN102587049B (en) | 2011-01-14 | 2011-01-14 | The automatic thread tensioning mechanism of sewing thickness can be experienced |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112467627A (en) * | 2020-11-27 | 2021-03-09 | 贾应荣 | Automatic wire tightening device for wire body during high-voltage wire erection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786315A (en) * | 2004-12-07 | 2006-06-14 | 重机公司 | Sewing machine |
| CN1891887A (en) * | 2005-06-28 | 2007-01-10 | 杜尔克普-阿德勒股份公司 | Sewing machine |
| CN202273075U (en) * | 2011-01-14 | 2012-06-13 | 上海日野工业缝纫机有限公司 | Automatic thread tensioning mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55155687A (en) * | 1979-05-24 | 1980-12-04 | Brother Ind Ltd | Device for automatically tuning cotton of rectilinear final sewing machine and final sewing ornament sewing machine |
| JP4783619B2 (en) * | 2005-11-15 | 2011-09-28 | Ｊｕｋｉ株式会社 | sewing machine |
-
2011
- 2011-01-14 CN CN201110008040.7A patent/CN102587049B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786315A (en) * | 2004-12-07 | 2006-06-14 | 重机公司 | Sewing machine |
| CN1891887A (en) * | 2005-06-28 | 2007-01-10 | 杜尔克普-阿德勒股份公司 | Sewing machine |
| CN202273075U (en) * | 2011-01-14 | 2012-06-13 | 上海日野工业缝纫机有限公司 | Automatic thread tensioning mechanism |
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| CN102587049A (en) | 2012-07-18 |
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Granted publication date: 20150902 Termination date: 20170114 |