CN202273075U - Automatic thread tensioning mechanism - Google Patents
Automatic thread tensioning mechanism Download PDFInfo
- Publication number
- CN202273075U CN202273075U CN2011200114201U CN201120011420U CN202273075U CN 202273075 U CN202273075 U CN 202273075U CN 2011200114201 U CN2011200114201 U CN 2011200114201U CN 201120011420 U CN201120011420 U CN 201120011420U CN 202273075 U CN202273075 U CN 202273075U
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- CN
- China
- Prior art keywords
- servo
- thread tensioning
- actuated
- stringing
- sewing
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- Expired - Fee Related
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Abstract
The utility model relates to an industrial flat bed sewing machine. An automatic thread tensioning mechanism mainly comprises a thread gripper fixed at a front side of a machine head of a sewing machine, a compressing rod of which a lower end is provided with a presser foot, a needle bar slide block guide rail, a sewing thickness receptor, a servo-actuated thread tensioning frame and two thread tensioning pins; wherein the sewing thickness receptor is fixedly arranged on the compressing rod, one side of the sewing thickness receptor is provided with a curved surface in a vertical direction; the servo-actuated thread tensioning frame is pivoted on a vertical shaft at one side of the needle bar slide block guide rail, one end of the servo-actuated thread tensioning frame is a servo-actuated arm which is tightly attached to the curved surface of the sewing thickness receptor, a thread tensioning surface is provided between a fulcrum of the servo-actuated thread tensioning frame and the servo-actuated arm; and the two thread tensioning pins are slidingly arranged in feed holes on a casing wall, rear ends of the thread tensioning pins are arranged in the machine head and abutted against the thread tensioning surface of the servo-actuated thread tensioning frame, front ends of the thread tensioning pins are arranged outside the machine head and tightly abutted against a back side of a rear thread gripping plate of the thread gripper. By adopting the automatic thread tensioning mechanism of the utility model, when the thickness of a sewing material varies within 7mm, the pressures of the threads can be compensated automatically and synchronously, thereby raising a sewing quality and a sewing efficiency.
Description
Technical field
The utility model relates to the stringing mechanism of industrial flat bed sewing machine.
Background technology
General flat seam machine, in order to adjust the tension force of suture, all head be convenient to operate part, establish a tension disk like the head front side, adjust the tension force of suture by the operative employee through adjusting tension disk.As shown in Figure 1, general clamp 100, extremely preceding by the back 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 constitutes.Suture is clipped in forward and backward clamp 105, between 104, its tension force can be regulated the pressure of 107 pairs of clamps of line ball spring through regulating tension regulating thumb nut 109.But artificial adjustment tension disk; Be difficult to adapt to the unexpected and frequent variation of sewing thickness; As the multilayer seam of sewing, the seam that folds, when inlaying seam etc.; The rhythm that artificial adjustment can't be caught up with the sewing varied in thickness will produce quality problems such as bouncing pilotage, flotation line, influences production efficiency and sewing quality, even causes and do over again or scrap.Therefore, operating personnel's function of hoping especially to sew has the function of adjusting the clamping force of suture according to the varied in thickness of seam automatically, particularly when the sewing thickening, can have automatic stringing function.
Summary of the invention
The purpose of the utility model is to propose a kind of mechanism of automatic stringing, and thick receptor stitches through one in this mechanism, and carries out the stringing operation in view of the above, increases the clamping force of tension disk, overcomes the deficiency of prior art.
The utility model adopts following technical scheme.
A kind of automatic stringing mechanism mainly comprises the tension disk that is fixed on the head of sewing machine front side, and the compressor arm of presser feet is equipped with in the lower end, and the shank slide block guide rail is characterized in that also comprising: seam thick receptor, a servo-actuated stringing frame and two stringing pins.
The thick receptor of said seam is installed on the said compressor arm, and the one of which side has the curved surface of a vertical direction; This receptor goes up and down with sewing thickness, can experience the variation of sewing thickness.
The fulcrum of said servo-actuated stringing frame is hubbed on the vertical shaft of said shank slide block guide rail one side, and the one of which end is the stringing face between said fulcrum and the idle rod for the idle rod near the curved surface that is affixed on the thick receptor of said seam.
Said two stringing pins be slidingly installed in the guide hole on the enclosure wall, their rear end is positioned at head, near the stringing face of said servo-actuated stringing frame, their front end is positioned at outside the head, is tight against the back side of the back clamp of said tension disk.
Further, vertically establish two ears in nearly tension disk one side of said shank slide block guide rail, said vertical shaft is located in these two ears, and said servo-actuated stringing frame is hubbed on this vertical shaft.
The advantage of the utility model is: ⑴ makes flat seam machine increase automatic stringing function through setting up the thick receptor of a seam; When sewing thickness at 7 ㎜ during with interior variation; The pressure of its suture is the automatic synchroballistic of ability all; Thereby improved quilt quality and production efficiency, improved the performance and the competitiveness of machine.⑵ adopt full mechanical, be installed on dexterously in the existing head space, and simple in structure, cheap, it is convenient to implement, and adjustment is easy, wide application.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION figure of the tension disk of prior art.
Fig. 2 is the STRUCTURE DECOMPOSITION figure of the embodiment 1 of the utility model.
Among the figure: 100 tension disks, 101 tension disk seats, 102 yarn take-up springs, 103 clamp screws, 104 back clamps; 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, the thick receptor of 205 seams; 207 compressor arms, 209 shank slide block guide rails, 210 servo-actuated stringing framves, 211 vertical shafts.
The specific embodiment
Combine embodiment that the utility model is described further at present.
Embodiment 1
Like Fig. 2; Mainly comprise the tension disk that is fixed on the head front side 100 in the flat seam machine, the compressor arm 207 of presser feet is equipped with in the lower end, the shank slide block guide rail 209 between compressor arm 207 and tension disk 100; Also have thick receptor 205, one servo-actuated stringing framves 210 of seam and two a stringing pin 110a and 110b.
Stitch that thick receptor 205 is fixedly arranged on the said compressor arm 207, the below of compressor arm saddle 203, the one of which side has the curved surface 205a of a vertical direction.This receptor goes up and down with sewing thickness, can experience the variation of sewing thickness.
The fulcrum of servo-actuated stringing frame 210 is hubbed at this shank slide block guide rail 209 1 sides, and the one of which end is the idle rod 210c that is close to the curved surface 205a of the thick receptor of said seam, is stringing face 210b between its fulcrum and the idle rod.Particularly, vertically establish two ear 209a in nearly tension disk 100 1 sides of shank slide block guide rail 209, vertical shaft 211 just is located among two ear 209a, and the fulcrum of servo-actuated stringing frame 210 is hubbed on the vertical shaft 211.Accepting when said servo-actuated stringing frame behind the signal of curved surface 205a of the thick receptor of said seam promptly around its spot wobble.
Two stringing pin 110a and 110b are slidingly installed in the guide hole on the enclosure wall, and their rear end is positioned at head, near the stringing face 210b of said servo-actuated stringing frame, and their front end is positioned at the head outside, is tight against the back side of the back clamp 104 of said tension disk 100.When said servo-actuated stringing frame 210 was swung with the increase of sewing thickness, this two stringings pin was executed thrust to the back side of back clamp 104, thereby increases the clamping force of tension disk, reaches the purpose of stringing.
The course of work of the utility model is: in sewing, when running into thicker sewing, presser feet 202 can raise and make compressor arm 207 to raise; Stitching thick receptor 205 also increases; Its curved surface 205a promotes the idle rod 210c of servo-actuated stringing frame, makes said servo-actuated stringing frame 210 around its spot wobble, and with pushing away before the two stringing pins 110; Be pressed in the back side of back clamp 104 because of two stringing pins system; So this thrust makes and holds tightlyer between forward and backward two clamps, the tension force of suture is increased, thereby reached the purpose of stringing.
Claims (2)
1. automatic stringing mechanism; Mainly comprise the tension disk (100) that is fixed on the head of sewing machine front side; The compressor arm (207) of presser feet is equipped with in the lower end; Shank slide block guide rail (209) is characterized in that also comprising: a seam thick receptor (205), a servo-actuated stringing frame (210) and two stringing pins (110a, 110b);
The thick receptor of said seam (205) is installed on the said compressor arm (207), and the one of which side has the curved surface (205a) of a vertical direction;
The fulcrum of said servo-actuated stringing frame (210) is hubbed on the vertical shaft (211) of said shank slide block guide rail (209) one sides; The one of which end is stringing face (210b) between said fulcrum and the idle rod for the idle rod (210c) near the curved surface that is affixed on the thick receptor of said seam (205a);
Said two stringing pins (110a, 110b) are slidingly installed in the guide hole on the enclosure wall; Their rear end is positioned at head, near the stringing face (210b) of said servo-actuated stringing frame; Their front end is positioned at the head outside, is tight against the back side of the back clamp (104) of said tension disk (100).
2. automatic stringing according to claim 1 mechanism; It is characterized in that: nearly tension disk (100) one sides in said shank slide block guide rail (209) are vertically established two ears (209a); Vertical shaft (211) is located in two ears (209a), and servo-actuated stringing frame (210) is hubbed on this vertical shaft (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200114201U CN202273075U (en) | 2011-01-14 | 2011-01-14 | Automatic thread tensioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200114201U CN202273075U (en) | 2011-01-14 | 2011-01-14 | Automatic thread tensioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273075U true CN202273075U (en) | 2012-06-13 |
Family
ID=46193444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200114201U Expired - Fee Related CN202273075U (en) | 2011-01-14 | 2011-01-14 | Automatic thread tensioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587049A (en) * | 2011-01-14 | 2012-07-18 | 上海日野工业缝纫机有限公司 | Automatic line-tightening mechanism capable of sensing thickness of fabric |
-
2011
- 2011-01-14 CN CN2011200114201U patent/CN202273075U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587049A (en) * | 2011-01-14 | 2012-07-18 | 上海日野工业缝纫机有限公司 | Automatic line-tightening mechanism capable of sensing thickness of fabric |
| CN102587049B (en) * | 2011-01-14 | 2015-09-02 | 上海日野工业缝纫机有限公司 | The automatic thread tensioning mechanism of sewing thickness can be experienced |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20140114 |