CN201665766U - Automatic thread pulling device of lockstitch sewing machine - Google Patents
Automatic thread pulling device of lockstitch sewing machine Download PDFInfo
- Publication number
- CN201665766U CN201665766U CN2010201150874U CN201020115087U CN201665766U CN 201665766 U CN201665766 U CN 201665766U CN 2010201150874 U CN2010201150874 U CN 2010201150874U CN 201020115087 U CN201020115087 U CN 201020115087U CN 201665766 U CN201665766 U CN 201665766U
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- thread
- pulling
- connecting rod
- rod
- magnetic core
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Abstract
The utility model discloses an automatic thread pulling device of a top-bottom integrated material feeding lockstitch sewing machine, which comprises a machine head, a machine needle and a presser foot, wherein the machine needle and the presser foot are arranged at the lower end of the machine head, a thread pulling mechanism is also arranged on the machine head, the thread pulling mechanism comprises an electromagnet assembly, a pulling fork, a thread pulling rod support frame, a thread pulling connecting rod and a thread pulling rod, a torsional force spring and a magnetic core rod are arranged in the electromagnet assembly, the magnetic core rod is connected with a fork opening of the pulling fork, the pulling fork is connected with the thread pulling rod through the thread pulling connecting rod, the magnetic core rod drives the thread pulling connecting rod for downwards moving through the pulling fork, and the thread pulling connecting rod pushes the thread pulling rod to swing towards the outside of the machine needle. Compared with the prior art, the utility model is provided with the thread puling mechanism on the machine head, so thread ends can be immediately pulled to a position above the presser foot by the thread pulling rod after the bottom thread and the surface thread are cut off, the thread end of the starting surface thread can be brought into the thread mark of a sewed article during the secondary sewing, and no obvious residue thread end is remained at the starting part of the sewing. Thereby, the sewing quality is improved.
Description
Technical field
The utility model relates to a kind of comprehensive up and down feeding flat seam machine automatic thread wiping device.
Background technology
Present comprehensive up and down feeding flat seam machine all is equipped with a thread cutting mechanism mostly below needle plate, then by computer control electromagnet and motor, behind sewing termination, cut off bottom line and upper thread automatically, finish the sewing work of this operation, this flat seam machine all improves a lot than common flat seam machine operating efficiency and sewing quality, and has reduced labour intensity.
But this flat seam machine is in continuous sewing work, since bottom line and upper thread all needle plate next time property cut off, so will cause surplus line the end of a thread of upper thread on the eedle to be in the below of presser feet, and when carrying out sewing the second time, must upper thread the end of a thread be chosen top to presser feet with hand, so just can make upper thread the end of a thread when the shuttle head colludes line, be brought to below the sewing, and be woven in the sewing with sewing thread trace, if upper thread the end of a thread is not chosen top to presser feet, when sewing for the second time, because presser feet compresses upper thread the end of a thread, the seam place is played in the sewing top will leave one section long upper thread the end of a thread, thereby influence sewing quality.
Summary of the invention
For addressing the above problem, the purpose of this utility model is to provide a kind of flat seam machine automatic thread wiping device, so that in continuous sewing process, automatically upper thread is allocated to the presser feet top after trimming finishes, guarantees carrying out smoothly of sewing continuously.
For achieving the above object, the utility model mainly adopts technical scheme as follows:
A kind of flat seam machine automatic thread wiping device, comprise head, be installed in the eedle and the presser feet of head lower end, one thread-laying mechanism also is installed on the described head, this thread-laying mechanism comprises electromagnet assembly, shift fork, dials the line shaft bar, dials the line connecting rod and dials the line bar, be provided with torsion spring and magnetic core stick in the described electromagnet assembly, magnetic core stick is connected with the shift fork prong, and shift fork is connected with group line bar by dialling the line connecting rod; Described magnetic core stick drives group line connecting rod by shift fork and moves downward, and dials line connecting rod promotion group line bar and shakes to the eedle outside.
Be fixed with on the described group of line shaft bar and dial bobbin, dial the line connecting rod and be connected with group line bar by this group bobbin.
Described electromagnet assembly is provided with switch.
Compared with prior art, the utility model is by being equipped with a thread-laying mechanism on head, after the end, upper thread are cut off, the end of a thread on the eedle is dialled the line bar immediately and is chosen the presser feet top, when sewing for the second time, initial upper thread the end of a thread will be brought in the stitching of sewing piece, makes the sewing section start not have tangible remaining the end of a thread, thereby has improved sewing quality.
Description of drawings
Fig. 1 is the utility model flat seam machine thread-moving device planar structure schematic diagram.
Fig. 2 is Fig. 1 left view.
Identifier declaration among the figure: head 1, electromagnet assembly 2, torsion spring 3, magnetic core stick 4, switch 5, group bobbin 6, group line bar 7, eedle 8, presser feet 9, shift fork 10, group line shaft bar 11, group line connecting rod 12.
The specific embodiment
Core concept of the present utility model is: the utility model is by being equipped with a thread-laying mechanism on head, this thread-laying mechanism is controlled by computer, when the end on the eedle, when upper thread is cut off, then computer is issued the thread-laying mechanism signal, make the electromagnet assembly energising in the thread-laying mechanism, promote to dial the line bar and shake this moment under magnetic core stick drives, upper thread is pushed the presser feet top, and outage rapidly, this moment, magnetic force disappeared, under the effect of torsion spring, and the rapid return of magnetic core stick, drive simultaneously and dial the reposition of line bar, prepare sewing once more.
For setting forth thought of the present utility model and purpose, the utility model is described further below in conjunction with accompanying drawing and specific embodiments.
See also Fig. 1, shown in Figure 2, the utility model provides a kind of flat seam machine automatic thread wiping device, and it mainly comprises head 1, is installed in the eedle 8 and the presser feet 9 of head 1 lower end, on the described head 1 thread-laying mechanism is installed also.
Above-mentioned thread-laying mechanism comprises electromagnet assembly 2, shift fork 10, dials line shaft bar 11, dials line connecting rod 12, dials bobbin 6 and dials line bar 7, and described electromagnet assembly is controlled by computer, and its surface is provided with switch 5, and inside is provided with torsion spring 3 and magnetic core stick 4.
Dialling line shaft bar 11 is fixed on the head 1, shift fork 10, group line connecting rod 12 and group 7 on line bar are fixedly mounted on to be dialled on the line shaft bar 11, wherein shift fork 10 prongs are connected with magnetic core stick 4, the lower end is fixed on group line shaft bar 11 with dialling line connecting rod 12 by fixed axis, and group line connecting rod 12 lower ends are then fixedly connected with dialling line bar 7 by dialling bobbin 6; Magnetic core stick 4 drives group line connecting rod 12 by shift fork 10 and moves downward, and dials line connecting rod 12 promotion group line bars 7 and shakes to the outside of eedle 8.
Thread-laying mechanism is controlled by computer in the utility model, the end on eedle 8, when upper thread is cut off, computer is issued the thread-laying mechanism signal, make electromagnet assembly 2 energisings in the thread-laying mechanism, magnetic core stick 4 drive shift forks 10 motions this moment, and shift fork 10 is dialled 7 motions of line bar by dialling line connecting rod 12 and dialling bobbin 6 drives, dialling line bar 7 begins to shake, and upper thread pushed presser feet top, and outage rapidly, this moment, the magnetic force of magnetic core stick 4 disappeared, under the effect of torsion spring 3, magnetic core stick 4 rapid returns drive simultaneously and dial 7 repositions of line bar, prepare sewing once more.
More than be that a kind of flat seam machine automatic thread wiping device provided by the utility model is described in detail, used specific case herein structural principle of the present utility model and embodiment are set forth, above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. flat seam machine automatic thread wiping device, comprise head (1), be installed in the eedle (8) and the presser feet (9) of head (1) lower end, it is characterized in that: described head also is equipped with a thread-laying mechanism on (1), this thread-laying mechanism comprises electromagnet assembly (2), shift fork (10), dials line shaft bar (11), dials line connecting rod (12) and dials line bar (7), be provided with torsion spring (3) and magnetic core stick (4) in the described electromagnet assembly (2), magnetic core stick (4) is connected with shift fork (10) prong, and shift fork (10) is connected with group line bar (7) by dialling line connecting rod (12); Described magnetic core stick (4) drives group line connecting rod (12) by shift fork (10) and moves downward, and dials line connecting rod (12) promotion group line bar (7) and shakes to eedle (8) outside.
2. flat seam machine automatic thread wiping device according to claim 1 is characterized in that: be fixed with on the described group of line shaft bar (11) and dial bobbin (6), dial line connecting rod (12) and be connected with group line bar (7) by this group bobbin (6).
3. flat seam machine automatic thread wiping device according to claim 1 is characterized in that: described electromagnet assembly (2) is provided with switch (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201150874U CN201665766U (en) | 2010-02-08 | 2010-02-08 | Automatic thread pulling device of lockstitch sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201150874U CN201665766U (en) | 2010-02-08 | 2010-02-08 | Automatic thread pulling device of lockstitch sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201665766U true CN201665766U (en) | 2010-12-08 |
Family
ID=43266723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201150874U Expired - Fee Related CN201665766U (en) | 2010-02-08 | 2010-02-08 | Automatic thread pulling device of lockstitch sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201665766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233651A (en) * | 2013-06-12 | 2014-12-24 | 兄弟工业株式会社 | Sewing machine |
-
2010
- 2010-02-08 CN CN2010201150874U patent/CN201665766U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233651A (en) * | 2013-06-12 | 2014-12-24 | 兄弟工业株式会社 | Sewing machine |
| CN104233651B (en) * | 2013-06-12 | 2016-08-31 | 兄弟工业株式会社 | Sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101208 Termination date: 20160208 |