CN105316876A - A synchronous belt cloth feeding mechanism of a sewing machine - Google Patents
A synchronous belt cloth feeding mechanism of a sewing machine Download PDFInfo
- Publication number
- CN105316876A CN105316876A CN201410442240.7A CN201410442240A CN105316876A CN 105316876 A CN105316876 A CN 105316876A CN 201410442240 A CN201410442240 A CN 201410442240A CN 105316876 A CN105316876 A CN 105316876A
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- timing belt
- cloth
- sewing machines
- synchronous pulley
- feeding mechanism
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Abstract
The invention provides a synchronous belt cloth feeding mechanism of a sewing machine. The cloth feeding mechanism is characterized in that an upper synchronous belt and a lower synchronous belt clamp cloth and feed cloth through synchronous movement. The synchronous belt cloth feeding mechanism enables various kinds of cloth to advance stably and smoothly, guarantees smooth progress of sewing and prevents damage and crumpling of cloth.
Description
technical field
The present invention relates to a kind of cloth feeding mechanism of Sewing machines, the Timing Belt up and down adopted in particular to a kind of computer flat sewing machine combines and carries out the Timing Belt cloth feeding mechanism of work feed.
Background technology
The basic structure of existing Sewing machines as shown in Figure 1, during work, being arranged on the presser feet 5 on presser feet connecting rod 6 and feed dog below 10 will need the two pieces of cloth sewed up to compress, power imports into through main shaft 1 and drives shank 4 and syringe needle to move up and down through take-up eccentric wheel 2, crank 3 etc., two panels cloth can be sewed up by the motion in conjunction with rotating shuttle 9 below, power distribution simultaneously drives cloth feeding crank 7 to cloth pushing shaft 8 and the final feed dog 10 that drives swings, cooperatively interact with presser feet 5 and the cloth sewed up seen off, thus stitching is constantly carried out.In the above-mentioned cloth feeding mechanism be made up of presser feet 5 and feed dog 10 etc., when sewing is carried out, presser feet 5 is pressed on cloth motionless, and produce the frictional force hindering cloth to move between cloth, and feed dog 10 swing can produce the frictional force pulling cloth to advance, the impact that these two kinds of frictional force are moved on cloth is contrary, more soft and smooth for some, slim cloth, as real silk cloth etc., easily make cloth advance not in time, cause wrinkling or cloth is torn damage, cause sewing quality to decline or produce defect ware.
summary of the invention
The object of this invention is to provide a kind of Timing Belt cloth feeding mechanism of Sewing machines, this mechanism adopts upper and lower Timing Belt to clamp cloth and is synchronized with the movement, and can make the steadily smooth advance of various cloth, sewing is carried out smoothly, and cloth breaking-up wrinkling can not occur.
For achieving the above object, the present invention takes following technical scheme:
A kind of Timing Belt cloth feeding mechanism of Sewing machines, comprise electric machine support and rotating shuttle stock, it is characterized in that, the presser feet connecting rod of described electric machine support and Sewing machines is fixedly linked, electric machine support is provided with motor, motor output shaft is provided with the first synchronous pulley, in presser feet connecting rod lower end, Timing Belt guide need foot is installed, Timing Belt guide need foot lower end is provided with the second synchronous pulley, and the first synchronous pulley and the second synchronous pulley are equipped with the first Timing Belt; It is outer and be installed on Sewing machines body that described rotating shuttle stock is enclosed within the rotating shuttle of Sewing machines, on rotating shuttle stock, cover has Timing Belt driven gear rotationally, in the cloth pushing shaft outer end of Sewing machines, unilateral bearing is installed, unilateral bearing fixed sleeves is connected to Timing Belt driving gear, and Timing Belt driving gear and Timing Belt driven gear are equipped with the second Timing Belt.
Preferably, described Timing Belt guide need foot side has arc guide groove, is provided with described second synchronous pulley in arc guide groove one end, and described first Timing Belt side is enclosed within the second synchronous pulley through arc guide groove.
Described motor is stepper motor.
In technique scheme, moved together by upper and lower two Timing Belts and realize steady work feed, specifically, the first Timing Belt is arranged between presser feet and motor by two synchronous pulleys, and motor is fixed by electric machine support and presser feet connecting rod, achieve synchronously moving up and down of motor and presser feet, during work, presser feet is transferred, and motor also moves down thereupon, when presser feet is lifted, motor with on move, can keep like this first Timing Belt belt length inconvenience, enable motor drive smoothly first Timing Belt motion; Second Timing Belt is positioned between rotating shuttle stock and unilateral bearing, guarantee fit with first Timing Belt of transferring thus compress cloth, and the cloth pushing shaft of Sewing machines is originally as left and right alternate rotation, using unilateral bearing can choose the motion of cloth pushing shaft one drives the second Timing Belt to rotate to a direction as power source, the ingenious dynamical problem solving the second Timing Belt, avoiding arranging separately motor again increases cost.Motor preferentially selects stepper motor, is convenient to realize accurate control, uses with matching computer flat seam machine.This cloth feeding structure all shows good work feed effect to various cloth, especially soft and smooth, slim cloth in using, and no longer occurs that unexpected accumulation is eaten wrinkle, torn the problems such as breaking-up, but can smooth and easy stable work feed.
accompanying drawing explanation
Fig. 1 is existing Sewing machines basic structure schematic diagram;
Fig. 2 is that mechanism of the present invention is arranged on main TV structure schematic diagram on Sewing machines;
Fig. 3 is Fig. 2 backsight structural representation;
Fig. 4 is Timing Belt guide need foot structural representation;
Fig. 5 is the structural representation of rotating shuttle stock.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figures 2 to 5, this Timing Belt cloth feeding structure is installed on Sewing machines body 11, and be the transformation to existing Sewing machines, Sewing machines comprises multiple, as general sewing machine, and computer flat sewing machine etc.Wherein, electric machine support 13 is fixedly installed on the presser feet connecting rod 17 of Sewing machines, can move up and down, electric machine support 13 is provided with motor 26 with presser feet connecting rod 17, and motor 26 is stepper motor preferably, can according to extraneous pulse signal control action.The output shaft of motor 26 is provided with the first synchronous pulley 12, first synchronous pulley outer rim and there is band tooth, for being meshed with the internal tooth of Timing Belt.The lower end of presser feet connecting rod 17 is provided with Timing Belt guide need foot 16, Timing Belt guide need foot 16 lower end is provided with the second synchronous pulley 15, first Timing Belt 14 is arranged on the first synchronous pulley 12 and the second synchronous pulley 15, and motor 26 can drive the first Timing Belt 14 to move.Because electric machine support 13 and presser feet connecting rod 17 are fixed, the two movement tendency is identical, when presser feet connecting rod 17 rises or declines, and the first Timing Belt 14 belt length inconvenience.As preferred embodiment, Timing Belt guide need foot can leave arc guide groove 32 in side, the second synchronous pulley 15 is installed by axle 31 in arc guide groove 32 one end, top passing hole 30 and screw are fixed on presser feet connecting rod 17, and make the side of the first Timing Belt from arc guide groove 32 by being enclosed within the second synchronous pulley 15, better can play guide effect (Fig. 4) to the first Timing Belt like this.
Rotating shuttle stock 25 is for being enclosed within the rotating shuttle 50 of Sewing machines and being fixed on Sewing machines body 11, rotating shuttle stock 25 can be tubular construction, on outer surface, cover has Timing Belt driven gear 24 rotatably, this gear 24 leaves external tooth to engage (Fig. 5) with Timing Belt internal tooth, inner side is smooth can rotate on rotating shuttle stock 25, rotating shuttle stock 25 both sides leave otic placode 40 and otic placode 41 respectively, and are fixed on Sewing machines body 11 by the hole on two pieces of otic placodes.On the cloth pushing shaft 20 of Sewing machines, cover has unilateral bearing 21, and unilateral bearing 21 fixed sleeves is connected to Timing Belt driving gear 22, leaves external tooth to engage with Timing Belt internal tooth outside Timing Belt driving gear 22.Timing Belt driving gear 22 and Timing Belt driven gear 24 are equipped with the second Timing Belt 23.20, sewing machine cloth feeding axle is positive and negative alternate rotation, rotate through one of them direction of unilateral bearing 21 elimination and retain the rotation of another direction, thus realize the one-way movement that cloth pushing shaft 20 drives unilateral bearing 21 and then drive Timing Belt driving gear 22 and the second Timing Belt 23 interval, and drive the intermittent exercise of the first Timing Belt 14 mutually harmonious with motor 26, thus realize the first Timing Belt, being synchronized with the movement of the second Timing Belt.
After mechanism is arranged on Sewing machines, when starting working, two panels cloth is placed on the platform of Sewing machines, putting down presser feet connecting rod 17 drives Timing Belt guide need foot 16 to fall, and make the first Timing Belt 14 outside the second synchronous pulley 15 be pressed onto on cloth, it is the second Timing Belt outside Timing Belt driven gear 24 below cloth, namely first, second Timing Belt steps up cloth simultaneously, when sewing is carried out, two Timing Belt transfixions when shank 18 drives syringe needle 19 to fall, when syringe needle 19 lifts, also synchronously travel forward the while of two Timing Belts a stride, and clamping pulls cloth corresponding movement stride, when syringe needle 19 falls again, two Timing Belts reply inactive state, what so constantly circulate carries out work.
By test show, this Timing Belt cloth feeding mechanism to various cloth, comprise common cloth and in the past Sewing machines be difficult to soft and smooth, the slim cloth of work feed; all steady and smooth can realize work feed; improve operating efficiency and yield rate, protect valuable cloth simultaneously, improve economic benefit.
The present embodiment just to the present invention's design and explanations realizing, is not limited, and under the present invention's design, the technical scheme converted without essence is still in protection domain.
Claims (3)
1. the Timing Belt cloth feeding mechanism of a Sewing machines, comprise electric machine support and rotating shuttle stock, it is characterized in that, the presser feet connecting rod of described electric machine support and Sewing machines is fixedly linked, electric machine support is provided with motor, motor output shaft is provided with the first synchronous pulley, in presser feet connecting rod lower end, Timing Belt guide need foot is installed, Timing Belt guide need foot lower end is provided with the second synchronous pulley, and the first synchronous pulley and the second synchronous pulley are equipped with the first Timing Belt; It is outer and be installed on Sewing machines body that described rotating shuttle stock is enclosed within the rotating shuttle of Sewing machines, on rotating shuttle stock, cover has Timing Belt driven gear rotationally, in the cloth pushing shaft outer end of Sewing machines, unilateral bearing is installed, unilateral bearing fixed sleeves is connected to Timing Belt driving gear, and Timing Belt driving gear and Timing Belt driven gear are equipped with the second Timing Belt.
2. the Timing Belt cloth feeding mechanism of Sewing machines as claimed in claim 1, it is characterized in that, described Timing Belt guide need foot side has arc guide groove, is provided with described second synchronous pulley in arc guide groove one end, and described first Timing Belt side is enclosed within the second synchronous pulley through arc guide groove.
3. the Timing Belt cloth feeding mechanism of Sewing machines as claimed in claim 1 or 2, it is characterized in that, described motor is stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442240.7A CN105316876A (en) | 2014-09-02 | 2014-09-02 | A synchronous belt cloth feeding mechanism of a sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442240.7A CN105316876A (en) | 2014-09-02 | 2014-09-02 | A synchronous belt cloth feeding mechanism of a sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105316876A true CN105316876A (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410442240.7A Pending CN105316876A (en) | 2014-09-02 | 2014-09-02 | A synchronous belt cloth feeding mechanism of a sewing machine |
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| CN (1) | CN105316876A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354598A (en) * | 2017-09-07 | 2017-11-17 | 杰克缝纫机股份有限公司 | Feed device and sewing machine on sewing machine |
| CN108286134A (en) * | 2018-04-12 | 2018-07-17 | 台州安卓缝纫机有限公司 | A kind of self-feeding flat seam machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4311106A (en) * | 1978-11-06 | 1982-01-19 | Durkoppwerke Gmbh | Sewing machine with upper and lower workpiece transporters |
| US4512272A (en) * | 1982-03-25 | 1985-04-23 | Kochs Adler Ag | Sewing machine reversible feeding mechanism |
| US5249540A (en) * | 1990-07-30 | 1993-10-05 | Durkopp Adler Aktiengesellschaft | Sewing-material transport device for single-needle or multi-needle sewing machine |
| JP2003175289A (en) * | 2001-12-11 | 2003-06-24 | Juki Corp | Post type sewing machine |
| EP2138620A1 (en) * | 2008-06-28 | 2009-12-30 | Dürkopp Adler AG | Sewing machine and method for operating same |
| CN204039690U (en) * | 2014-09-02 | 2014-12-24 | 保定泽泰服装机械制造有限公司 | A kind of Timing Belt cloth feeding mechanism of Sewing machines |
-
2014
- 2014-09-02 CN CN201410442240.7A patent/CN105316876A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4311106A (en) * | 1978-11-06 | 1982-01-19 | Durkoppwerke Gmbh | Sewing machine with upper and lower workpiece transporters |
| US4512272A (en) * | 1982-03-25 | 1985-04-23 | Kochs Adler Ag | Sewing machine reversible feeding mechanism |
| US5249540A (en) * | 1990-07-30 | 1993-10-05 | Durkopp Adler Aktiengesellschaft | Sewing-material transport device for single-needle or multi-needle sewing machine |
| JP2003175289A (en) * | 2001-12-11 | 2003-06-24 | Juki Corp | Post type sewing machine |
| EP2138620A1 (en) * | 2008-06-28 | 2009-12-30 | Dürkopp Adler AG | Sewing machine and method for operating same |
| CN204039690U (en) * | 2014-09-02 | 2014-12-24 | 保定泽泰服装机械制造有限公司 | A kind of Timing Belt cloth feeding mechanism of Sewing machines |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354598A (en) * | 2017-09-07 | 2017-11-17 | 杰克缝纫机股份有限公司 | Feed device and sewing machine on sewing machine |
| CN107354598B (en) * | 2017-09-07 | 2020-03-31 | 杰克缝纫机股份有限公司 | Last material feeding unit of sewing machine and sewing machine |
| CN108286134A (en) * | 2018-04-12 | 2018-07-17 | 台州安卓缝纫机有限公司 | A kind of self-feeding flat seam machine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160210 |
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| RJ01 | Rejection of invention patent application after publication |