CN101519833B - Wire adjusting device of sewing machine - Google Patents
Wire adjusting device of sewing machine Download PDFInfo
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- CN101519833B CN101519833B CN200910096840A CN200910096840A CN101519833B CN 101519833 B CN101519833 B CN 101519833B CN 200910096840 A CN200910096840 A CN 200910096840A CN 200910096840 A CN200910096840 A CN 200910096840A CN 101519833 B CN101519833 B CN 101519833B
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- push rod
- electromagnet
- support
- crank
- sewing machines
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Abstract
The invention provides a wire adjusting device of a sewing machine, which belongs to the technical field of mechanisms and solves the problems of complex structure, inconvenient installation and debugging, and the like of the wire adjusting device of the prior sewing machine. The wire adjusting device of the sewing machine is arranged on a stand of the sewing machine and comprises an electromagnet, a post rod and a guide piece, wherein the electromagnet is fixedly connected to a machine casing, one end of the post rod is positioned at the guide piece, and a drive mechanism is arranged between the other end of the post rod and the electromagnet. The invention has simple structure, accurate positioning and high use stability.
Description
Technical field
The invention belongs to field of mechanical technique, relate to the needle-thread tensioning control device that is used to regulate tension disk on a kind of Sewing machines, particularly Sewing machines.
Background technology
Have a tension disk in the Sewing machines, Sewing machines in use tension disk has suture clamping or action of releasing.The needle-thread tensioning control device of Sewing machines is exactly a kind of device that is used to achieve the above object.
Chinese patent CN1724740A " needle-thread tensioning control device of Sewing machines " that provide for example, it is made up of solenoid, controlling organization, yarn changing device and linkage etc.Controlling organization can change driving solenoid-activated power, and the transmission specific energy of linkage changes flexibly.Obviously, the needle-thread tensioning control device of above-mentioned Sewing machines is owing to be provided with the device of scalable drive part, makes whole needle-thread tensioning control device mechanism more complicated, cost also corresponding to higher.
In addition, the gearratio scalable of linkage makes that the structure of whole needle-thread tensioning control device is complicated more.And as drive part, what it adopted is stepper motor, makes whole Sewing machines Installation and Debugging seem very not convenient like this.
Summary of the invention
The objective of the invention is provides the needle-thread tensioning control device of the Sewing machines that a kind of job stability is high, assembling and setting is easy to existing in prior technology the problems referred to above.
The object of the invention can be realized through following technical proposal: a kind of needle-thread tensioning control device of Sewing machines; Be arranged on the frame of Sewing machines; It is characterized in that it comprises electromagnet, push rod and guide, described electromagnet is connected on the casing; One end of push rod is positioned at the guide place, is provided with transmission mechanism between the other end of push rod and the electromagnet.
Electromagnet energising back drives the transmission mechanism action, drives push rod through transmission mechanism and moves.Push rod moves the back and just can contact with the tension disk on the Sewing machines, and tension disk is touched the back just can loose ends or stringing.Thereby satisfy the needs of tension disk action in the Sewing machines use.
Simultaneously, make that under the effect of guide push rod is to do translational motion along rectilinear direction all the time.
In the needle-thread tensioning control device of above-mentioned Sewing machines, described transmission mechanism is that the center is hinged on the crank on the casing, and an end of crank and the iron core of electromagnet are hinged, and the other end and the push rod of crank are hinged.Drive crank in the electromagnet course of action around its hinged place swing, meanwhile, drive push rod in the crank-swinging process and move simultaneously, the push rod after moving just can touch tension disk.
In the needle-thread tensioning control device of above-mentioned Sewing machines; The two ends of described crank all have the connecting hole that is strip; The iron core sidepiece of above-mentioned electromagnet has pulling out head and pulling out the connection hole that head is embedded in crank, the another one connection hole that above-mentioned push rod sidepiece has pulling pin of protrusion and pulls pin and be embedded in crank of protrusion.
Make the iron core of crank and electromagnet be flexible connection through such structure, but can drive crank in the electromagnet course of action around its hinged place swing.Be similarly flexible connection between crank and the push rod, crank can drive push rod and move in its hinged place swing process, makes that the push rod in the moving process can touch tension disk.
As other a kind of scheme; In the needle-thread tensioning control device of above-mentioned Sewing machines; Described transmission mechanism also comprises connecting rod one and connecting rod two, and an end of connecting rod one and the iron core of electromagnet are hinged, and the other end of connecting rod one and crank one end are hinged; One end of connecting rod two and the other end of crank are hinged, and the other end of connecting rod two and above-mentioned push rod are hinged.
After the electromagnet energising, drive crank around its hinged place swing, drive push rod through connecting rod two in the crank-swinging process and move through connecting rod one.Electromagnet is constantly just driving reciprocal the moving of push rod in the attracting process.
In the needle-thread tensioning control device of above-mentioned Sewing machines, be fixed with support on the described casing, above-mentioned electromagnet is connected in the support place, and above-mentioned crank is articulated in the support place.
Make that through support the assembling and setting of electromagnet and crank is more convenient.That is to say, can be earlier all be connected electromagnet and crank on the support after, again support is connected on the casing of Sewing machines.
In the needle-thread tensioning control device of above-mentioned Sewing machines, be provided with spring between described push rod and the support, the trend that in the oriented support of elastic force effect lower push rod of spring, moves.
Obviously, the original state lower push rod contracts in support all the time.Elastic force effect lower push rod at spring when push rod recovers its original state can reset fully.
In the needle-thread tensioning control device of above-mentioned Sewing machines, through the adjustment screw that has been threaded, an end of above-mentioned spring is connected on the adjustment screw on the described support.
Obviously, adjustment screw can move with respect to support, just can change the elastic force of spring after the turn adjustment screw.
As other a kind of scheme; In the needle-thread tensioning control device of above-mentioned Sewing machines, described adjustment screw is partly passed support, is provided with positioning screw cap in the support outside; Above-mentioned adjustment screw and positioning screw cap link through screw thread, and an end of spring is connected on the adjustment screw that is positioned at internal stent.
Obviously, be not threaded between adjustment screw and the support here.When needing the elastic force of regulating spring, the rotational positioning nut just can make that dog screw moves with respect to support.
In the needle-thread tensioning control device of above-mentioned Sewing machines, has the face of pushing of inclination on the described push rod.
After push rod moves, just can contact with tension disk through the face of pushing on it.Can realize the action of clamp or loose ends after making tension disk pressed.
Compared with prior art, the needle-thread tensioning control device of this Sewing machines makes that the needle-thread tensioning control device of this Sewing machines is simple in structure owing to be to move through single solenoid actuated push rod.And, the electromagnet stable drive, make each push rod all can be smooth and easy and the position move back and forth accurately, so it makes tension disk can implement clamp, loose ends action accurately, stability in use is than higher.
Description of drawings
Fig. 1 is the decomposition texture sketch map of the needle-thread tensioning control device of this Sewing machines.
Fig. 2 is the structural representation of rams retracted in the needle-thread tensioning control device of this Sewing machines.
Fig. 3 is the structural representation that push rod stretches out in the needle-thread tensioning control device of this Sewing machines.
Fig. 4 is the structural representation of tension disk in the needle-thread tensioning control device of this Sewing machines.
Among the figure, 1, casing; 2, electromagnet; 2a, iron core; 2b, pull out head; 3, guide; 4, support; 5, crank; 5a, connecting hole; 6, push rod; 6a, pull pin; 6b, push face; 7, adjustment screw; 8, positioning screw cap; 9, spring; 10, tension disk.
The specific embodiment
As shown in Figure 1, the needle-thread tensioning control device of this Sewing machines is arranged on the casing 1 of Sewing machines, and it is made up of electromagnet 2, guide 3 and push rod 6 etc.
One end of push rod 6 is positioned at guide 3 places, is provided with transmission mechanism between the other end of push rod 6 and the electromagnet 2.One end of push rod 6 has the face of the pushing 6b of inclination.
Transmission mechanism is a crank 5, and the middle part of crank 5 is hinged on the support 4, and an end of crank 5 and the iron 2a of electromagnet 2 are hinged, and the other end of crank 5 and push rod 6 are hinged.In the present embodiment, the two ends of crank 5 all have the connecting hole 5a that is strip, and the iron 2a sidepiece of electromagnet 2 has a 2b that pulls out of protrusion, and pull out a 2b and be embedded in above-mentioned connecting hole 5a place.
The sidepiece of push rod 6 has the 6a that pulls pin of protrusion, and the 6a that pulls pin is embedded in the connecting hole 5a place of crank 5 other ends.Certainly; According to actual conditions; Transmission mechanism can also include connecting rod one and connecting rod two in addition, and an end of connecting rod one and the iron core of electromagnet are hinged, and the other end of connecting rod one and crank one end are hinged; One end of connecting rod two and the other end of crank are hinged, and the other end of connecting rod two and above-mentioned push rod are hinged.
On support 4, be equipped with adjustment screw 7, support 4 outsides are provided with positioning screw cap 8, and the end that support 4 and spring 9 are passed in the inner of adjustment screw 7 links, and the other end of spring 9 is connected with push rod 6.The outer end of adjustment screw 7 is positioned at support 4 outsides and adjustment screw 7 and positioning screw cap 8 and is connected through screw thread.Certainly, also be feasible on the support 4 through being threaded in directly with adjustment screw 7 according to actual conditions.
Like Fig. 2 and Fig. 3 and shown in Figure 4, the trend that in the elastic force effect lower push rod 6 oriented supports 4 of spring 9, moves.
When electromagnet was not switched on, the pulling force that crank 5 receives spring 9 remained static, and tension disk 10 contacts with the face of the pushing 6b of push rod 6, and tension disk 10 clamps suture;
When the sewing beginning, electromagnet 2 outages, the iron core 2a of electromagnet 2 resets, and push rod 6 moves backward, and tension disk 10 receives push rod 6 to push face 6b effect, and tension disk 10 clamps suture;
During trimming, electromagnet 2 energisings, push rod 6 moves forward, and tension disk 10 is opened, and suture is lax;
Claims (7)
1. the needle-thread tensioning control device of a Sewing machines; Be arranged on the frame of Sewing machines; It is characterized in that it comprises electromagnet (2), push rod (6) and guide (3), described electromagnet (2) is connected on the casing (1); One end of push rod (6) is positioned at guide (3) and locates; Be provided with transmission mechanism between the other end of push rod (6) and the electromagnet (2), have the face of pushing (6b) of inclination on the push rod (6), after the tension disk that is arranged on the Sewing machines is pressed, can realize clamp or loose ends action through pushing face (6b).
2. the needle-thread tensioning control device of Sewing machines according to claim 1; It is characterized in that; Described transmission mechanism is that the center is hinged on the crank (5) on the casing (1), and the iron core (2a) of an end of crank (5) and electromagnet (2) is hinged, and the other end of crank (5) and push rod (6) are hinged.
3. the needle-thread tensioning control device of Sewing machines according to claim 2; It is characterized in that; The two ends of described crank (5) all have the connecting hole (5a) that is strip; Iron core (2a) sidepiece of above-mentioned electromagnet (2) has pulling out head (2b) and pulling out the connecting hole (5a) that head (2b) is embedded in crank (5) and locate of protrusion, and above-mentioned push rod (6) sidepiece has the another one connecting hole (5a) that pulling pin (6a) of protrusion and pull pin (6a) be embedded in crank (5) and locates.
4. according to the needle-thread tensioning control device of claim 2 or 3 described Sewing machiness, it is characterized in that be fixed with support (4) on the described casing (1), above-mentioned electromagnet (2) is connected in support (4) and locates, above-mentioned crank (5) is articulated in support (4) and locates.
5. the needle-thread tensioning control device of Sewing machines according to claim 4 is characterized in that, is provided with spring (9) between described push rod (6) and the support (4), the trend that in the oriented support of elastic force effect lower push rod (6) (4) of spring (9), moves.
6. the needle-thread tensioning control device of Sewing machines according to claim 5 is characterized in that, described support (4) is gone up through the adjustment screw (7) that has been threaded, and an end of above-mentioned spring (9) is connected on the adjustment screw (7).
7. the needle-thread tensioning control device of Sewing machines according to claim 6; It is characterized in that; Described adjustment screw (7) part is passed support (4); Be provided with positioning screw cap (8) in support (4) outside, above-mentioned adjustment screw (7) links through screw thread with positioning screw cap (8), and an end of spring (9) is connected on the adjustment screw (7) that is positioned at support (4) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096840A CN101519833B (en) | 2009-03-16 | 2009-03-16 | Wire adjusting device of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096840A CN101519833B (en) | 2009-03-16 | 2009-03-16 | Wire adjusting device of sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101519833A CN101519833A (en) | 2009-09-02 |
| CN101519833B true CN101519833B (en) | 2012-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910096840A Expired - Fee Related CN101519833B (en) | 2009-03-16 | 2009-03-16 | Wire adjusting device of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101519833B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1207419A (en) * | 1968-02-23 | 1970-09-30 | Gunter Peschke | Yarn tension releasing attachment for sewing machines |
| EP0735176A2 (en) * | 1995-03-30 | 1996-10-02 | Jaguar Co., Ltd. | Overlock sewing machine |
| CN2873834Y (en) * | 2005-12-06 | 2007-02-28 | 中国标准缝纫机公司上海惠工缝纫机三厂 | Thread loosing mechanism for sewing machine |
| CN201099752Y (en) * | 2007-07-27 | 2008-08-13 | 青岛富亚机械有限公司 | Facial line clamping device |
| CN201459385U (en) * | 2009-03-16 | 2010-05-12 | 中捷缝纫机股份有限公司 | Line adjustment device of sewing machine |
-
2009
- 2009-03-16 CN CN200910096840A patent/CN101519833B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1207419A (en) * | 1968-02-23 | 1970-09-30 | Gunter Peschke | Yarn tension releasing attachment for sewing machines |
| EP0735176A2 (en) * | 1995-03-30 | 1996-10-02 | Jaguar Co., Ltd. | Overlock sewing machine |
| CN2873834Y (en) * | 2005-12-06 | 2007-02-28 | 中国标准缝纫机公司上海惠工缝纫机三厂 | Thread loosing mechanism for sewing machine |
| CN201099752Y (en) * | 2007-07-27 | 2008-08-13 | 青岛富亚机械有限公司 | Facial line clamping device |
| CN201459385U (en) * | 2009-03-16 | 2010-05-12 | 中捷缝纫机股份有限公司 | Line adjustment device of sewing machine |
Non-Patent Citations (1)
| Title |
|---|
| JP平1-317477A 1989.12.22 |
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| Publication number | Publication date |
|---|---|
| CN101519833A (en) | 2009-09-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Owner name: ZHEJIANG ZOJE SEWING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHONGJIE SEWING MACHINE CO., LTD. Effective date: 20140926 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140926 Address after: 317604 Yuhuan County barley island Subdistrict Office, Zhejiang, Taizhou Patentee after: Zhejiang Zoje Sewing Technology Co., Ltd. Address before: 317604 Zhejiang Province, Yuhuan County Chen Yu Zhen Damaiyu Development Zone Patentee before: Zhongjie Sewing Machine Co., Ltd. |
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| 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: 20120919 Termination date: 20170316 |