CN201901758U - Thread pulling device of sewing machine - Google Patents
Thread pulling device of sewing machine Download PDFInfo
- Publication number
- CN201901758U CN201901758U CN2010206294646U CN201020629464U CN201901758U CN 201901758 U CN201901758 U CN 201901758U CN 2010206294646 U CN2010206294646 U CN 2010206294646U CN 201020629464 U CN201020629464 U CN 201020629464U CN 201901758 U CN201901758 U CN 201901758U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- thread
- cylinder
- moving device
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The utility model provides a thread pulling device of a sewing machine, belongs to the technical field of machinery, and resolves the problems of instability and powerlessness in thread pulling and the like in a thread pulling device of a conventional sewing machine. The thread pulling device of the sewing machine is arranged on a housing of the sewing machine; and the thread pulling device comprises a rotating shaft and a hook-shaped pulling rod used for pulling thread, wherein the rotating shaft is fixed on the housing, and the pulling rod is fixedly connected with the rotating shaft; and the thread pulling device further comprises an air cylinder fixedly connected with the housing, and a driving mechanism is arranged between the air cylinder and the rotating shaft, and can drive the rotating shaft to perform reciprocating rotation when a piston rod of the air cylinder expands and contracts. Moreover, the thread pulling device of the sewing machine takes the air cylinder as a driving part, and has the advantages of stability, preciseness and powerfulness in thread pulling, low manufacturing cost, etc.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of Sewing machines, particularly a kind of thread-moving device of Sewing machines.
Background technology
At present, the automaticity of Sewing machines is higher, makes thorn line in the process in the past, colludes line, trimming, dials the line action and all replaced by the automated machine structure.Wherein automatic thread wiping device is the important component part of Sewing machines, after the automatic thread trimming device in the Sewing machines is cut off needlework, plays seam for making needlework smoothly for the second time, and automatic thread wiping device is dialled needlework to come up from the needle plate hole.
The thread-moving device structure of existing sewing machine is had nothing in common with each other, and some has also declared patent, and for example the Chinese patent literature data discloses a kind of thread-moving device [application number: 200620048183.5 of Sewing machines; Granted publication number: CN200981923Y], it comprises support and a driving lever that is used for dialling line, this device also comprises rotating shaft and electromagnetic valve, electromagnetic valve is fixed on the support, rotating shaft is axially fixed on the support, driving lever is fixed in the rotating shaft, is provided with a mobile mechanical transmission mechanism that rotating shaft is rotated by the spool of electromagnetic valve between rotating shaft and the electromagnetic valve.
Electromagnetic valve in the above-mentioned patent is connected with control circuit, after the electromagnetic valve action, by mechanical transmission mechanism rotating shaft is rotated, and the driving lever that is fixed in the rotating shaft also rotates together, and driving lever rotates to be dialled needlework to come up from the pin hole of needle plate.Electricity, demagnetization are incomplete because electromagnetic valve moment disappears, and can cause dialling the line instability but in use; And because the magnetic force instability of electromagnetic valve, can cause rotating shaft anglec of rotation instability, to dial line unable; Back-moving spring easy deformation in the patent in addition can cause the driving lever inaccuracy that resets, and the line precision is dialled in influence; The volume of electromagnetic valve is bigger in addition, is fixed on to seem lofty on the support, and profile is not attractive in appearance, the electromagnetic valve fatiguability, the unexpected stop motion of one long meeting service time causes dialling line, need close this moment and restart control circuit and just can make electromagnetic valve recover motion, reduce the operating efficiency of Sewing machines.
Summary of the invention
The purpose of this utility model is at the above-mentioned problems in the prior art, the thread-moving device that provide stable, moves the Sewing machines of high conformity.
The purpose of this utility model can realize by following technical proposal: a kind of thread-moving device of Sewing machines, it is located on the casing of Sewing machines, this thread-moving device comprises rotating shaft and is the driving lever that hook solid is used for dialling line, described rotating shaft is fixed on the casing, described driving lever and rotating shaft are connected, it is characterized in that, this thread-moving device also comprises cylinder, described cylinder is connected mutually with casing, and is provided with the transmission mechanism that when the piston rod of cylinder is flexible rotating shaft is back and forth rotated between described cylinder and the rotating shaft.
The thread-moving device of this Sewing machines is positioned at head of sewing machine shank place, cylinder is connected with control circuit, after needlework are cut off, rise before the seam for the second time, the running of control circuit control cylinder, the piston rod of cylinder drives rotating shaft by transmission mechanism and rotates, and is connected in driving lever in the rotating shaft and also rotates together needlework are dialled from the pin hole of needle plate, makes ensuing seam smoothly.
Cylinder is controlled by circuit, and the flexible stroke of the piston rod of cylinder is fixed, and the stroke that finally drives the driving lever rotation by transmission mechanism is also determined, driving lever operation high conformity, stable accurate.
In the thread-moving device of above-mentioned Sewing machines, the piston rod that described cylinder is connected in the sidepiece of casing and cylinder is positioned at the circumferential direction of rotating shaft, and described driving lever circumferentially is fixed on rotating shaft.Rationally distributed like this, make structure compact.
In the thread-moving device of above-mentioned Sewing machines, described transmission mechanism comprises the contiguous block that the piston rod end of swinging block that roller end circumferentially is fixed with and cylinder is fixed with, described contiguous block offers chute, and described swinging block is hinged by a pin rod and a described contiguous block that is located in the chute and can slides in chute.
It is flexible together that the piston rod of cylinder drives contiguous block, pin rod moves around in chute, with the mobile reciprocally swinging of the hinged swinging block of pin rod along with pin rod, the rotating shaft that circumferentially is connected with swinging block has realized reciprocal rotation, thereby the driving lever that circumferentially is connected with rotating shaft is also back and forth rotated, repeat the action of dialling line and resetting.
As another kind of situation, in the thread-moving device of above-mentioned Sewing machines, described transmission mechanism comprises connecting rod and the cam that is connected with roller end, and an end of described connecting rod and the piston rod of cylinder are hinged, and the other end and the cam of connecting rod are hinged.
The flexible of the piston rod of cylinder back and forth rotates cam by connecting rod, also back and forth rotates with the rotating shaft that cam is connected, thereby the driving lever that circumferentially is connected with rotating shaft is also back and forth rotated, and repeats the action of dialling line and resetting.
In the thread-moving device of above-mentioned Sewing machines, the middle part of described rotating shaft is arranged with positioning sleeve, and described positioning sleeve is fixed on the casing.Rotating shaft is fixed in casing and can be rotated in positioning sleeve, and positioning sleeve is arranged on the stability that the rotating shaft middle leaf has guaranteed that rotating shaft is rotated.
In the thread-moving device of above-mentioned Sewing machines, be fixed with the cylinder cover that cylinder is covered on the described casing.Cylinder cover is not frightened to have dustproof, protective effect, and makes cylinder not lofty on casing, and the overall structure aesthetics is good.
Compared with prior art, the thread-moving device of a kind of Sewing machines of providing of the utility model has the following advantages:
1, the thread-moving device of this Sewing machines is actuator with the cylinder, the piston rod stroke of cylinder is a definite value, cylinder is also determined by the stroke that transmission mechanism finally drives the driving lever rotation, driving lever operation high conformity, driving lever rotational angle unanimity like this, make driving lever pipeline purging hit rate be a hundred per cent, group line stabilization is accurate.
2, the thread-moving device of this Sewing machines is actuator with the cylinder, and the piston rod expanding-contracting action of cylinder is strong rapidly, it is powerful guarantee to dial line like this, has eliminated the problem that driving lever is dialled motionless needlework.
3, the thread-moving device of this Sewing machines is an actuator with the cylinder replacement of solenoid valve, and the price of cylinder only is half of electromagnetic valve price, has reduced manufacturing cost.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of the thread-moving device of this Sewing machines.
Fig. 2 is the perspective view of the thread-moving device of this Sewing machines.
Among the figure, 1, casing; 2, rotating shaft; 2a, connecting portion; 3, driving lever; 4, cylinder; 5, swinging block; 6, contiguous block; 7, chute; 8, pin rod; 9, positioning sleeve; 10, cylinder cover.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
The thread-moving device of this Sewing machines is located on the casing 1 of Sewing machines, and is positioned at head of sewing machine shank place, and after needlework were cut off, this thread-moving device was dialled needlework to come up from the pin hole of needle plate, makes needlework at ensuing seam smoothly.
Specifically, as depicted in figs. 1 and 2, this thread-moving device comprises rotating shaft 2, cylinder 4 and is the driving lever 3 that hook solid is used for dialling line, the middle part of rotating shaft 2 is arranged with positioning sleeve 9, positioning sleeve 9 is fixed on the casing 1 by bolt, one end of rotating shaft 2 has the connecting portion 2a of circumferential extension, and driving lever 3 is fixed on the connecting portion 2a of rotating shaft 2.The piston rod that cylinder 4 is connected in the sidepiece of casing 1 and cylinder 4 by bolt is positioned at the circumferential direction of rotating shaft 2, in order to make cylinder 4 not lofty on casing 1, guarantee integrally-built aesthetics, also be fixed with the cylinder cover 10 that cylinder 4 is covered by bolt on the casing 1.Be provided with the transmission mechanism that when the piston rod of cylinder 4 is flexible, rotating shaft 2 is back and forth rotated between cylinder 4 and the rotating shaft 2.
Transmission mechanism comprises the contiguous block 6 that the piston rod end of swinging block 5 that rotating shaft 2 circumferentially is fixed with away from the end of connecting portion 2a and cylinder 4 is fixed with, contiguous block 6 rectangular bendings and contiguous block 6 offer chute 7 near on the end face of rotating shaft 2, a pin rod 8 passes chute 7, swinging block 5, the end cap that pin rod 8 has is stuck on the contiguous block 6, and pin rod 8 passes the end nut check of swinging block 5.
Cylinder 4 in the thread-moving device of this Sewing machines is connected with control circuit, the piston rod of initial cylinder 4 contracts in cylinder body, driving lever 3 is positioned at the outside of shank, after needlework were cut off, the piston rod of control circuit control cylinder 4 stretched out, and pin rod 8 slides in chute 7, swinging block 5 side oscillation outside shank, thereby rotating shaft 2 is rotated with swinging block 5 and is driven driving lever 3 to the rotation of the inboard of shank, and driving lever 3 is dialled needlework to come up from the pin hole of needle plate like this, makes ensuing seam smoothly.After finishing group line, the piston rod of cylinder 4 retraction, pin rod 8 slides in chute 7, and swinging block 5 resets to the rotation of the outside of shank thereby rotating shaft 2 drives driving levers 3 with swinging block 5 rotations to the interior side oscillation of shank, has made preparation for dialling line next time.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as casing 1, rotating shaft 2, connecting portion 2a, driving lever 3, cylinder 4, swinging block 5, contiguous block 6, chute 7, pin rod 8, positioning sleeve 9, cylinder cover 10 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (6)
1. the thread-moving device of a Sewing machines, it is located on the casing (1) of Sewing machines, this thread-moving device comprises rotating shaft (2) and is the driving lever (3) that hook solid is used for dialling line, described rotating shaft (2) is fixed on the casing (1), described driving lever (3) is connected with rotating shaft (2), it is characterized in that, this thread-moving device also comprises cylinder (4), described cylinder (4) is connected mutually with casing (1), and is provided with the transmission mechanism that when the piston rod of cylinder (4) is flexible rotating shaft (2) is back and forth rotated between described cylinder (4) and the rotating shaft (2).
2. the thread-moving device of Sewing machines according to claim 1 is characterized in that, the piston rod that described cylinder (4) is connected in the sidepiece of casing (1) and cylinder (4) is positioned at the circumferential direction of rotating shaft (2), and described driving lever (3) circumferentially is fixed on rotating shaft (2).
3. the thread-moving device of Sewing machines according to claim 2, it is characterized in that, described transmission mechanism comprises the contiguous block (6) that the piston rod end of swinging block (5) that rotating shaft (2) end circumferentially is fixed with and cylinder (4) is fixed with, described contiguous block (6) offers chute (7), and described swinging block (5) is hinged with described contiguous block (6) by a pin rod (8) that is located in the chute (7) and can slides in chute (7).
4. the thread-moving device of Sewing machines according to claim 2, it is characterized in that, described transmission mechanism comprises connecting rod and the cam that is connected with rotating shaft (2) end, and the piston rod of an end of described connecting rod and cylinder (4) is hinged, and the other end and the cam of connecting rod are hinged.
5. according to the thread-moving device of claim 1 or 2 or 3 or 4 described Sewing machiness, it is characterized in that the middle part of described rotating shaft (2) is arranged with positioning sleeve (9), described positioning sleeve (9) is fixed on the casing (1).
6. according to the thread-moving device of claim 1 or 2 or 3 or 4 described Sewing machiness, it is characterized in that, be fixed with the cylinder cover (10) that cylinder (4) is covered on the described casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206294646U CN201901758U (en) | 2010-11-29 | 2010-11-29 | Thread pulling device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206294646U CN201901758U (en) | 2010-11-29 | 2010-11-29 | Thread pulling device of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201901758U true CN201901758U (en) | 2011-07-20 |
Family
ID=44272358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206294646U Expired - Fee Related CN201901758U (en) | 2010-11-29 | 2010-11-29 | Thread pulling device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201901758U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073991A (en) * | 2014-06-26 | 2014-10-01 | 台州拓卡奔马机电科技有限公司 | Novel thread shifting device |
| CN104762767A (en) * | 2015-04-23 | 2015-07-08 | 杰克缝纫机股份有限公司 | Sewing machine and thread collecting device and method thereof |
| CN105133212A (en) * | 2015-09-19 | 2015-12-09 | 浙江中捷缝纫科技有限公司 | Thread drawing device of sewing machine |
| WO2017013651A1 (en) | 2015-07-21 | 2017-01-26 | Twine Solutions Ltd. | An integrated system and method for treating a thread and using thereof |
| CN108796686A (en) * | 2017-05-02 | 2018-11-13 | 无锡祥虹工贸有限责任公司 | A kind of twisting machine type throwing mechanism |
-
2010
- 2010-11-29 CN CN2010206294646U patent/CN201901758U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073991A (en) * | 2014-06-26 | 2014-10-01 | 台州拓卡奔马机电科技有限公司 | Novel thread shifting device |
| CN104762767A (en) * | 2015-04-23 | 2015-07-08 | 杰克缝纫机股份有限公司 | Sewing machine and thread collecting device and method thereof |
| CN104762767B (en) * | 2015-04-23 | 2017-08-29 | 杰克缝纫机股份有限公司 | Sewing machine and its take-up |
| WO2017013651A1 (en) | 2015-07-21 | 2017-01-26 | Twine Solutions Ltd. | An integrated system and method for treating a thread and using thereof |
| US10995438B2 (en) | 2015-07-21 | 2021-05-04 | Twine Solutions Ltd. | Integrated system and method for treating a thread and using thereof |
| CN105133212A (en) * | 2015-09-19 | 2015-12-09 | 浙江中捷缝纫科技有限公司 | Thread drawing device of sewing machine |
| CN105133212B (en) * | 2015-09-19 | 2017-07-18 | 浙江中捷缝纫科技有限公司 | A kind of thread-moving device of sewing machine |
| CN108796686A (en) * | 2017-05-02 | 2018-11-13 | 无锡祥虹工贸有限责任公司 | A kind of twisting machine type throwing mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201901758U (en) | Thread pulling device of sewing machine | |
| CN106637735B (en) | Thread trimming and presser foot lifting mechanism and sewing machine | |
| US20150202420A1 (en) | Tattoo machine | |
| CN101775716B (en) | Auxiliary lifting mechanism of presser foot of computerized embroidery machine | |
| CN205874676U (en) | Presser foot's drive structure | |
| CN106894175B (en) | automatic thread trimming mechanism of sewing machine and sewing machine | |
| CN108835779B (en) | Intelligent payment bracelet convenient to scan based on block chain technology | |
| CN109234930B (en) | Automatic thread trimming mechanism of sewing machine and sewing machine | |
| JPH05336865A (en) | Spool reciprocating structure for fishing reel | |
| CN209552745U (en) | A kind of dedicated three holes two-wire punching threading all-in-one machine of archive office | |
| CN210002065U (en) | Sewing mechanism | |
| CN209836530U (en) | Driving system of sewing machine | |
| CN210341255U (en) | Large-gauge jacquard | |
| CN106012280A (en) | Transmission system for dial linking machine | |
| CN111501226A (en) | Thread cutting device for column type sewing machine | |
| TWM593421U (en) | Quantitative cloth feeding device of plastic steel zipper car | |
| CN207970462U (en) | Toy loop wheel machine | |
| CN211394888U (en) | Thread cutting mechanism of platform type sewing machine | |
| CN202626509U (en) | Adjusting device for fabric density | |
| CN106702624B (en) | Take-up lever locking mechanism and embroidery machine | |
| CN207295168U (en) | Embroidery machine Assembled rotary embroidery shank | |
| CN210561125U (en) | Thread cutting device for sewing machine winder | |
| CN203795125U (en) | Electromagnetic type thread shifting structure | |
| CN212583920U (en) | Improved generation air pump bar magnet fixed knot constructs | |
| CN209602777U (en) | Needle bar stroke regulating mechanism and sewing machine with it |
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: 20110720 Termination date: 20131129 |