CN103205864A - Motor control sewing machine feeding mechanism - Google Patents
Motor control sewing machine feeding mechanism Download PDFInfo
- Publication number
- CN103205864A CN103205864A CN2012100070236A CN201210007023A CN103205864A CN 103205864 A CN103205864 A CN 103205864A CN 2012100070236 A CN2012100070236 A CN 2012100070236A CN 201210007023 A CN201210007023 A CN 201210007023A CN 103205864 A CN103205864 A CN 103205864A
- Authority
- CN
- China
- Prior art keywords
- feeding
- feed
- feed dog
- motor
- dog
- 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.)
- Pending
Links
Images
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides an improved sewing machine direct-driving feeding mechanism. The mechanism comprises a motor, a horizontal feeding shaft (1), a vertical feeding shaft (2), a feed dog pickup fork (3), a small assembly (4) for a feed dog frame and a feed dog (5), wherein the feed dog pickup fork (3) is arranged on the vertical feeding shaft (2); the small assembly (4) for the feed dog frame is arranged on the horizontal feeding shaft; and the feed dog (5) is installed on the small assembly (4) for the feed dog frame. In the mechanism, the horizontal feeding shaft (1) is directly driven by a motor, and the vertical feeding shaft is driven by the main shaft motor of the sewing machine. The two motors both can be connected to a computer and are directly programmed to control so as to change the feeding track and parameter of the feed dog. The mechanism has the advantages of stable feeding effect, accurate feeding displacement and convenience in control.
Description
Technical field
The present invention relates to a kind of Sewing machines feed mechanism, specially refer to the accurate feed mechanism of computer-controlled electric-machine directly-driven.
Background technology
Present Sewing machines type is varied, makes limit machine, overlock machine, embroidery machine etc. and emerges in an endless stream.Along with we constantly grope, our machine is strengthening effort gradually to intelligent development in the control field.But still there are a lot of problems in mechanical aspects.
There is very big deficiency in the electric sewer feed mechanism of current some model.For example, need manually to set the feeding displacement; The transmission device of feeding is too complicated; Because not overcoming the actual feeding displacement and the not equal many situations of setting displacement that the cloth friction causes.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention provides a kind of improved Sewing machines feed mechanism.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
With motor direct-drive straight feeding axle and main axis rotation, motor then is connected with computer, can rotate by revising the Data Control motor if necessary, and is convenient and swift.
Deduct some unnecessary complicated transmission devices in the feed mechanism originally, for example cam etc.Make whole feed mechanism simple and clear.
Originally during feeding, the track of feed dog is oval, as shown in Figure 4.Have when lifting on the feed dog or transferring one section forward work feed be not enough to cloth is given forward because lifting the friction that makes inadequately between itself and the cloth on the feed dog apart from the lining, this distance that just allows distance that feed dog advances and cloth advance produces no small error.
Address the above problem, the present invention's movement locus that feed dog is original is become near rectangle (as shown in Figure 2) by ellipse, the knee-action of feed dog and front and back movement decomposition is come as far as possible and carries out.A top joint of fetching and delivering the dog movement locus is the distance of one-period work feed, can reach the purpose of accurate work feed.
Preferably, described front and back feed spool and main shaft are by electric-machine directly-driven.
Preferably, described feed dog movement locus is near rectangle.
Technique scheme has following beneficial effect: the front and back feed spool of this feed mechanism and main shaft are by motor direct-drive, and motor is directly controlled by computer, can set the data that need and carry out the accurate feeding action.Motion in conjunction with the upward and downward feed spool, the feed dog action is: lift to maximum height earlier cloth jack-up is made a short pause, be with cloth to send then forward, delivering to foremost, making a short pause again, move down, put down cloth, shrink back, shift maximum distance apart onto and lift on beginning again, and so forth, finish up to work feed.This feed mechanism can carry out accurate feeding, and it is simple to have control, and mechanical device to compare other Sewing machines feed system structures more simple, accurate characteristics such as feeding.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with concrete grammar of the present invention execute example and conjunction with figs. describes in detail as after.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the movement locus figure of feed dog in the embodiment of the invention.
Fig. 3 guarantees the track schematic diagram of accurate feeding for the embodiment of the invention.
Fig. 4 is the trajectory diagram of feed dog feeding before improving in the embodiment of the invention.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, this Sewing machines directly drives feed mechanism and comprises straight feeding axle 1, between retainer group 4 and feed dog 5 be installed on the straight feeding axle, vertically feed spool 2 picks up tooth fork 3 and vertically feed spool 2 coaxial arrangements, 6 is picked up tooth and pitches and tightly bite and grit one's teeth.
Wherein straight feeding axle and main shaft are rotated by motor direct-drive.Wherein the straight feeding axle is to rotate back and forth to reach front and back to the purpose of feeding in certain amplitude.Vertically the feed spool rotation is by the main axis rotation transmission, and drive is picked up tooth and stuck lower swing, and gritting one's teeth and then moves up and down.Like this, front and back to vertically to action in conjunction with finishing whole feeding.
Feed regulation originally is a very loaded down with trivial details system, and middle transmission devices are quite complicated, and with more convenient understanding after the mechanism of the present invention, structure is also simple much, and it is easier to implement, and can also reach the purpose of accurate feeding.
Before the operation, need in the program of control feed distance, set the distance that needs feeding, drive the motor of feeding then.Also need to set velocity of rotation and the frequency of spindle motor, so just can calculate the distance as ab among Fig. 2 and cd, i.e. how many feed dogs lifts on needing during feeding.And the different cloth of feeding to need to lift the distance of feed dog also be different, so when needs the time, the rotational parameters of necessary change spindle motor.
When whole system operationalized, front and back were decomposed to come substantially to feeding and vertical direction feeding action and are finished.
Owing to feed dog action is driven by the cloth pushing shaft rotation, so even if its movement locus levels off to rectangle, the four edges of its rectangle also is the smoothed curve of near linear in essence.As shown in Figure 2.
The whole process of feed dog action following (be example with work feed forward):
1.a-＞b。Straight feeding axle 1 is not driven, and vertically feed spool 2 rotations drive and pick up up rotation of tooth fork 3, are picked up the 6 up rotations of gritting one's teeth of tooth fork interlock then, and 6 transmissions of gritting one's teeth form the movement locus of a-＞b for feed dog 5.
2.b-＞c。Vertically feed spool 2 does not have driving, 1 rotation of straight feeding axle, and the feed dog 5 that drives on the retainer widgets 4 travels forward, and forms the movement locus of b-＞c.
3.c-＞d。Identical with a-＞b, straight feeding axle 1 does not drive, and vertically feed spool 2 rotates, and is picked up the 6 down rotations of gritting one's teeth of tooth fork interlock then, and 6 transmissions of gritting one's teeth make feed dog motion formation as the track of c-＞d among Fig. 2 for feed dog 5.
4.d-＞a。Vertically feed spool 2 does not have driving, 1 rotation of straight feeding axle, and the feed dog 5 that drives on the retainer widgets 4 is drawn back, and forms the movement locus of feed dog d-＞a.
Above-described four step a-＞b-＞c-＞d-＞a forms the feeding action of feeding action one-period, wherein gets the feed distance L of the distance of b-＞c as this cycle.If need total distance Y of feeding and the relational expression of L to be:
Y＝N*L .....................................................................①
Wherein N is positive integer.(if need feeding backward, then the feed dog running orbit is d-＞c-＞b-＞a-＞d, and L is the distance of c-＞b)
The L of formula in 1. is transformable, the distance of the more approaching setting of feeding actual range that such variation can let us.Principle is as shown in Figure 3:
Feed direction is a-＞b-＞c-＞d-＞a among Fig. 3.E, f is respectively bc, the mid point of ad; And x, distance and y that m is ordered to e, the distance that n is ordered to f is R/2.Finish there are 2 kinds to conversion situation for the second time since the feeding first time.
1. a feeding is with for the second time the feeding path is identical, and namely the single feed distance is L: finish feeding at c point feed dog, if next feeding time direction unanimity therewith, feed dog stops at a point after through the d point and waits for feeding next time; If next feed direction is inferior opposite therewith, then feed dog moves to the d point and waits for next feeding after the c point is finished this feeding.To sum up: this kind situation is, then angle point waited for the oppositely then just next feeding of wait below end point in the feeding end point in the same way.
2. a feeding is different with the path of feeding for the second time, and the single feed distance is R for the second time, and 2 feeding paths are mid point with e and f all.Feeding for the first time ends at the c point, if next feeding with this in the same way, then feed dog is through the d point, y point, the next feeding of f point arrival n point wait; Reverse as if feeding for the second time and this, then feed dog rests on the y point and waits for next feeding through the d point.To sum up: when secondary feeding path not simultaneously, if direction is identical, finishes point (c point) from the feeding first time and to the feeding second time track angle point (n point) waited for next feeding along feed direction for the first time; If the direction difference is then finished point (c point) the edge feed direction first time from the feeding first time and is waited for next feeding to the below (y point) of the track of feeding for the second time starting point.
Claims (3)
1. an improved Sewing machines directly drives feed mechanism, and this mechanism comprises: motor, straight feeding axle (1), vertically feed spool (2), pick up (4), feed dog parts such as (5) between tooth fork (3), retainer group.The described tooth fork (3) that picks up is arranged on the vertical feed spool (2), and described retainer widgets (4) is arranged on the straight feeding axle, and described feed dog (5) then is installed on the retainer widgets (4).In the mechanism, described straight feeding axle (1) is by motor direct-drive, and vertically feed spool is by the machine spindle motor-driven.2 motors all can be connected to computer, and directly programming controls to change feeding track and the parameter of feed dog.This mechanism feeding effect is more stable, and the feeding displacement is more accurate, and it is also comparatively convenient to control.
2. Sewing machines feed mechanism according to claim 1 is characterized in that: described 2 motors rotate by computer programming control, the convenient feeding parameter that changes at any time.
3. the accurate feed system of Sewing machines according to claim 1, it is characterized in that: described feed dog feeding track cuts out the track that two ends become similar rectangle by ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100070236A CN103205864A (en) | 2012-01-11 | 2012-01-11 | Motor control sewing machine feeding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100070236A CN103205864A (en) | 2012-01-11 | 2012-01-11 | Motor control sewing machine feeding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103205864A true CN103205864A (en) | 2013-07-17 |
Family
ID=48753262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100070236A Pending CN103205864A (en) | 2012-01-11 | 2012-01-11 | Motor control sewing machine feeding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103205864A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088547A (en) * | 2015-09-30 | 2015-11-25 | 杰克缝纫机股份有限公司 | Dog lifting feeding mechanism of sewing machine and sewing machine |
| CN105113136A (en) * | 2015-09-30 | 2015-12-02 | 杰克缝纫机股份有限公司 | Feed mechanism of sewing machine and sewing machine |
| CN105155141A (en) * | 2015-09-30 | 2015-12-16 | 杰克缝纫机股份有限公司 | Double-motor drive feed mechanism and sewing machine |
| CN105177870A (en) * | 2015-09-30 | 2015-12-23 | 杰克缝纫机股份有限公司 | Tooth lifting mechanism of sewing machine |
| CN106757823A (en) * | 2016-12-29 | 2017-05-31 | 杰克缝纫机股份有限公司 | The cloth-feeding device of overedger |
| CN107268191A (en) * | 2016-04-05 | 2017-10-20 | Juki株式会社 | Sewing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130831Y (en) * | 1992-07-18 | 1993-04-28 | 何金煌 | Pivot jointing structure between horizontal shaft and two-forked connecting rod for sewing machine |
| JP2005137694A (en) * | 2003-11-07 | 2005-06-02 | Juki Corp | Sewing machine |
| CN101634085A (en) * | 2008-07-25 | 2010-01-27 | 中国标准缝纫机公司上海惠工缝纫机三厂 | Differential mechanism of motor-direct-drive type lower differential sewing machine |
| CN102154787A (en) * | 2011-04-07 | 2011-08-17 | 上海富山精密机械科技有限公司 | Dual-motor driven computerized sewing machine |
| CN202017118U (en) * | 2011-04-07 | 2011-10-26 | 上海富山精密机械科技有限公司 | Computerized lockstitch sewing machine driven by double motors |
-
2012
- 2012-01-11 CN CN2012100070236A patent/CN103205864A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130831Y (en) * | 1992-07-18 | 1993-04-28 | 何金煌 | Pivot jointing structure between horizontal shaft and two-forked connecting rod for sewing machine |
| JP2005137694A (en) * | 2003-11-07 | 2005-06-02 | Juki Corp | Sewing machine |
| CN101634085A (en) * | 2008-07-25 | 2010-01-27 | 中国标准缝纫机公司上海惠工缝纫机三厂 | Differential mechanism of motor-direct-drive type lower differential sewing machine |
| CN102154787A (en) * | 2011-04-07 | 2011-08-17 | 上海富山精密机械科技有限公司 | Dual-motor driven computerized sewing machine |
| CN202017118U (en) * | 2011-04-07 | 2011-10-26 | 上海富山精密机械科技有限公司 | Computerized lockstitch sewing machine driven by double motors |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088547A (en) * | 2015-09-30 | 2015-11-25 | 杰克缝纫机股份有限公司 | Dog lifting feeding mechanism of sewing machine and sewing machine |
| CN105113136A (en) * | 2015-09-30 | 2015-12-02 | 杰克缝纫机股份有限公司 | Feed mechanism of sewing machine and sewing machine |
| CN105155141A (en) * | 2015-09-30 | 2015-12-16 | 杰克缝纫机股份有限公司 | Double-motor drive feed mechanism and sewing machine |
| CN105177870A (en) * | 2015-09-30 | 2015-12-23 | 杰克缝纫机股份有限公司 | Tooth lifting mechanism of sewing machine |
| CN105155141B (en) * | 2015-09-30 | 2018-03-02 | 杰克缝纫机股份有限公司 | Dual-motors Driving feed mechanism and sewing machine |
| CN105177870B (en) * | 2015-09-30 | 2019-01-11 | 杰克缝纫机股份有限公司 | Pawl-lifting mechanism for sewing mechanisms |
| CN107268191A (en) * | 2016-04-05 | 2017-10-20 | Juki株式会社 | Sewing machine |
| CN107268191B (en) * | 2016-04-05 | 2021-01-01 | Juki株式会社 | Sewing machine |
| CN106757823A (en) * | 2016-12-29 | 2017-05-31 | 杰克缝纫机股份有限公司 | The cloth-feeding device of overedger |
| CN106757823B (en) * | 2016-12-29 | 2019-05-21 | 杰克缝纫机股份有限公司 | The cloth-feeding device of overedger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103205864A (en) | Motor control sewing machine feeding mechanism | |
| CN102951569B (en) | Automatic rope arrangement control device for roller | |
| CN202861284U (en) | Automatic welding forming machine for tapered pole steel reinforcement cage | |
| CN103952871A (en) | Device and method for automatically adjusting height of presser foot of embroidering machine | |
| CN108625049A (en) | The lift tooth material feeding driving mechanism and sewing machine of sewing machine | |
| CN204644605U (en) | A kind of guider transporting sewing machine | |
| CN203972512U (en) | A kind of discharging mechanism of copper pipe extruder | |
| CN205954267U (en) | Industrial flat bed sewing machine that can automatic adjustment gauge needle | |
| CN206164312U (en) | Full -automatic income end plate device of rotor | |
| CN209424922U (en) | A kind of automatic locking screw machine locked using electromagnet | |
| CN205132524U (en) | A device for rubber and unloading | |
| CN103481542A (en) | Paper product bonding servo rectification system of cover and tray carton machine and covering making machine | |
| CN202332794U (en) | Direct-drive solid phase crystallization welding head mechanism | |
| CN105332167A (en) | Automatic overlocking device | |
| CN202450265U (en) | Self-propelled sewing machine | |
| CN209691773U (en) | A kind of cell piece rotating device and cell piece draw weldering all-in-one machine | |
| CN209666412U (en) | One kind embracing box rotating mechanism | |
| CN207772426U (en) | A kind of self-induction is from collection type umbrella cloth edging machine | |
| CN207226679U (en) | The servo turnover mechanism of automatic change of lap plastic flat wire winder | |
| CN208841836U (en) | A kind of mantle laying support device | |
| CN214529449U (en) | Efficient textile waxing equipment | |
| CN206053267U (en) | A kind of self- steering clamping device of decorative panel for building | |
| CN202202185U (en) | Gear driving mechanism for sock turning rubber rolls | |
| CN207205747U (en) | A kind of spring transporting machine of spray pump spring and small bowl assembling machine | |
| CN202030911U (en) | Pleating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130717 |