CN105113152B - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN105113152B CN105113152B CN201510640000.2A CN201510640000A CN105113152B CN 105113152 B CN105113152 B CN 105113152B CN 201510640000 A CN201510640000 A CN 201510640000A CN 105113152 B CN105113152 B CN 105113152B
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Abstract
The present invention provides a kind of sewing machine, including by the first motor-driven upper axis, the shank Yarn taking-up mechanism for being located at upper shaft end, the lower axle parallel with upper axis, the hook line mechanism for being located at lower axle end, retainer and the feeding tooth being fixed on retainer, the upper axis is connected by driving unit with lower axle, upper axis is connected by Tai Ya mechanisms with one end of retainer, the second motor is further included, second motor is connected by cloth feeding mechanism with the other end of retainer.The sewing machine drives the Tai Ya mechanisms and cloth feeding mechanism of composition feed mechanism using two motors respectively, therefore, the output quantity of cloth feeding mechanism can be adjusted by adjusting the output quantity of the second motor, and then can easily change the movement locus of retainer and feeding tooth, realize the sewing of multiple patterns.
Description
Technical field
The present invention relates to a kind of garment sewing equipment, more particularly to a kind of sewing machine.
Background technology
Sewing machine species is various, including flat seam machine, overedger, chain seam machine, flat seaming machine etc., the wherein utilization rate of flat seam machine are most
It is high.Sewing machine includes needle bar mechanism, hook line mechanism, Yarn taking-up mechanism, feed mechanism, winding mechanism, feeding pressure mechanism etc., each mechanism phase
Mutual reasonably routing motion, cycle operation, unites by a seam sewing.At present, most of sewing machines are come using only a motor
Each mechanism kinematic is driven, therefore the movement locus of feeding tooth is also just only a kind of, therefore, the sewing machine of this structure can only realize one
Kind sewing track, therefore cloth feed amount cannot be freely controlled, also just it is not easy to sew various patterns.
The content of the invention
In view of the foregoing deficiencies of prior art, it is an object of the invention to provide a kind of feeding toilet article multi-motion
The sewing machine of track.
To achieve the above object, the present invention provides a kind of sewing machine, including by the first motor-driven upper axis, be located at upper axis
The shank Yarn taking-up mechanism of end, the lower axle parallel with upper axis, the hook line mechanism for being located at lower axle end, retainer and it is fixed on
Feeding tooth on retainer, the upper axis are connected by driving unit with lower axle, and upper axis passes through Tai Ya mechanisms and one end of retainer
It is connected, further includes the second motor, second motor is connected by cloth feeding mechanism with the other end of retainer.
Further, the Tai Ya mechanisms include the feed lifting rock shaft parallel with upper axis, and the upper axis is single by the first transmission
Member is connected with feed lifting rock shaft and drives feed lifting rock shaft line centered on own axes to swing back and forth, and the feed lifting rock shaft is passed by second
Moving cell is connected with retainer and drives retainer to move back and forth up and down.
In above-mentioned technical proposal, first gear unit has two kinds of preferred embodiments, is respectively：
First gear unit includes the first eccentric cam being fixed on axis or capacity eccentric bearing, is fixed on feed lifting rock shaft
On lift tooth rear crank and lift tooth connecting rod, upper end and first eccentric cam or capacity eccentric bearing of the lift tooth connecting rod revolve
Turn to coordinate, the lower end and the lift tooth rear crank for lifting tooth connecting rod are hinged.
Alternatively, first gear unit includes first connecting rod, second connecting rod and the first sliding block, the one of the first connecting rod
End is fixed on axis, and one end of the second connecting rod is fixed on feed lifting rock shaft, and first sliding block is articulated with first connecting rod
The other end and slideably it is sleeved on second connecting rod.
In above-mentioned technical proposal, second gear unit also has two kinds of preferred embodiments, is respectively：
Second gear unit includes feed lifting rock fork-shaped crank and the second sliding block for being articulated with retainer end, the feed lifting fork
One end of shape crank is fixed on feed lifting rock shaft, and the other end of feed lifting rock fork-shaped crank offers the cunning radially extended along feed lifting rock shaft
Groove, second sliding block are arranged in sliding slot and can move back and forth along the extending direction of sliding slot.
Alternatively, second gear unit includes the second eccentric cam and the third connecting rod being fixed on feed lifting rock shaft, it is described
One end of third connecting rod is hinged with the second eccentric cam, and the other end and the retainer of third connecting rod are hinged.
Further, the cloth feeding mechanism includes the feed spool parallel with feed lifting rock shaft, drive rod, intermediate bar, output rod
With retainer seat, one end of the drive rod is fixed on the output shaft of the second motor, and the both ends of the intermediate bar are respectively at driving
The other end of bar and one end of output rod are hinged, and the output rod other end and retainer seat are all fixed on feed spool, the tooth
Stand and retainer are hinged.
Preferably, the retainer seat and retainer are hinged by a cam pin, the cam pin successively include the first axle part,
The second axle part and the 3rd axle portion, the first axle part and the 3rd axle portion are arranged concentrically, the first axle part and the second axle part eccentric setting, institute
State the first axle part and the 3rd axle portion is all rotatably connected in retainer seat, the second axle part is rotatably connected in retainer.
Preferably, the output rod is fixedly connected with retainer seat.
Further, the cloth feeding mechanism can also use following technical scheme：Cloth feeding mechanism includes drive rod, intermediate bar
With the retainer seat being rotatably supported in baseplate of sewing machine, one end of the drive rod is fixed on the output shaft of the second motor
On, the both ends of the intermediate bar are hinged respectively at the other end and retainer seat of drive rod.
Preferably, the output shaft of second motor is in one direction and opposite direction is unidirectionally swung once, the retainer
Front and rear reciprocating swing is once.
As described above, sewing machine of the present invention, has the advantages that：
The sewing machine drives needle bar mechanism, Yarn taking-up mechanism, rotary shuttle mechanism and Tai Ya mechanisms at the same time using the first motor, at the same time
Cloth feeding mechanism is operated alone using the second motor, i.e., two motors used herein form feed mechanism to drive respectively
Tai Ya mechanisms and cloth feeding mechanism, therefore, can adjust the output quantity of cloth feeding mechanism by adjusting the output quantity of the second motor, and then
The movement locus of retainer and feeding tooth can easily be changed, realize the sewing of multiple patterns.
Brief description of the drawings
Fig. 1 is the structure diagram of the application.
The A that Fig. 2 is Fig. 1 encloses enlarged drawing.
Fig. 3 is the connection diagram of feed spool, feed lifting rock shaft and retainer in Fig. 1.
Fig. 4 is another embodiment of the first gear unit in the application.
Fig. 5 is another embodiment of the second gear unit in the application.
The B that Fig. 6 is Fig. 1 encloses enlarged drawing.
Fig. 7 is the structure diagram of thread take-up crank in Fig. 1.
Fig. 8 is the structure diagram of thread take-up tension lever in Fig. 1.
Fig. 9 is another embodiment of the application.
The C that Figure 10 is Fig. 9 encloses enlarged drawing.
Component label instructions
19 pin of axis on 1
2 first eccentric cam, 20 first connecting rod
3 first motor, 21 second connecting rod
4 lift tooth connecting rod, 22 first sliding block
5 lift tooth rear crank, 23 second eccentric cam
6 feed lifting rock shaft, 24 third connecting rod
7 feed lifting rock fork-shaped crank, 25 lower axle
71 sliding slot, 26 vertical pivot
8 retainer, 27 first bevel gear
9 feeding tooth, 28 second bevel gear
10 retainer seat, 29 third hand tap gear
The 4th bevel gear of 11 cam pin 30
111 the first axle part, 31 thread take-up crank
The 4th axle portion of 112 the second axle part 311
The 5th axle portion of 113 the 3rd axle portion 312
114 rotation slot, 32 needle bar crank
12 needle plate, 33 thread take-up tension lever
121 tooth hole, 331 threading hole
122 pin hole, 34 line-choosing connecting rod
13 output rod, 35 axis pin
14 intermediate bar, 36 shank connecting rod
15 drive rod, 37 guide rail
16 second motor, 371 guide groove
The 3rd sliding block of 17 feed spool 38
18 second sliding block, 39 anchor ear
181 slider body, 40 eedle
182 sliding block flange, 41 rotating shuttle
42 shank, 100 first gear unit
300 driving unit, 200 second gear unit
101 retainer seat body, 102 transmission arm
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the present invention easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only coordinating specification to be taken off
The content shown, so that those skilled in the art understands and reads, is not limited to the enforceable qualifications of the present invention, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall and obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile cited such as " on ", " under " in this specification, "left", "right", the term of " centre " and " one ", also it is only
Easy to understanding for narration, and it is not used to limit the enforceable scope of the present invention, its relativeness is altered or modified, in no essence
Change under technology contents, when being also considered as the enforceable category of the present invention.
All directions are defined as follows in following embodiments：The front direction refers to that sewing machine faces the direction of people, described
Rear direction refer to sewing machine back to the direction of people, the left direction is directed towards the direction of head of sewing machine, the right
To the direction referred to towards sewing machine tail, the upper direction refers to the direction towards sewing machine upper end, the lower direction
Refer to the direction towards sewing machine lower end.
The application provides a kind of sewing machine, as shown in Figure 1, Figure 2 with shown in Fig. 6, it is including axially extending upper in the lateral direction
Axis 1, the lower axle 25 parallel with upper axis 1, needle plate 12, retainer 8, the feeding tooth 9 being fixed on retainer 8 and for driving
The first motor 3 that axis 1 rotates, offer on the needle plate 12 hold eedle 40 down through or the pin hole 122 that is pierced by upwards and
The tooth hole 121 being oppositely arranged with feeding tooth about 9, the length of the tooth hole 121 in the longitudinal direction are more than feeding tooth 9 front and rear
Length on direction, to allow feeding tooth 9 is front and rear in tooth hole 121 to move back and forth and move back and forth up and down, so as to fulfill feeding
Tooth 9 drives sewing to be moved forward or rearward.Further, the end of the upper axis 1 is equipped with shank Yarn taking-up mechanism, for driving pin
Bar 42 moves back and forth up and down and drives thread take-up tension lever 33 to do the movement of similar willow leaf profile shape with eedle 40, to realize for line and
Take-up；The end of the lower axle 25 is equipped with hook line mechanism, and upper axis 1 is connected by driving unit 300 with lower axle 25, for driving
Rotating shuttle 41 in hook line mechanism rotates, and upper axis 1 is connected with the front end of retainer 8 by Tai Ya mechanisms and drives retainer past about 8
It is multiple mobile, the second motor 16 is further included, second motor 16 is connected and driven with the rear end of retainer 8 by cloth feeding mechanism
Retainer 8 is front and rear to be moved back and forth, the feed mechanism of the Tai Ya mechanisms and cloth feeding mechanism composition sewing machine.
The sewing machine drives shank Yarn taking-up mechanism, hook line mechanism and Tai Ya mechanisms at the same time using the first motor 3, uses at the same time
Second motor 16 is operated alone cloth feeding mechanism, i.e., two motors used herein form the lift of feed mechanism to drive respectively
Tooth mechanism and cloth feeding mechanism, therefore, can adjust the output quantity of cloth feeding mechanism by adjusting the output quantity of the second motor 16, and then
The movement locus of retainer 8 and feeding tooth 9 can easily be changed, realize the sewing of multiple patterns.In addition, by adjusting the second motor
It is dynamic that 16 output quantity transfers forward sewing etc. when transferring sewing backward when can also conveniently realize needle gage adjusting, positive seam, refund seam
Make.
Further, as shown in Figure 1, the Tai Ya mechanisms include the feed lifting rock shaft 6 parallel with upper axis 1, upper axis 1 is rotatable
Ground is supported in sewing machine case, upper axis 1 be connected by the first gear unit 100 with feed lifting rock shaft 6 and drive feed lifting rock shaft 6 with
Line swings back and forth centered on own axes, and the feed lifting rock shaft 6 is connected with retainer 8 by the second gear unit 200 and drives tooth
Frame 8 moves back and forth up and down.
In above-mentioned technical proposal, first gear unit 100 has two kinds of preferred embodiments, is respectively：
Embodiment one, as shown in Figure 1, first gear unit 100 includes being fixed on the first eccentric cam on axis 1
2 or capacity eccentric bearing, one end be fixed on lift tooth rear crank 5 on feed lifting rock shaft 6 and lift tooth connecting rod 4, the lift tooth connecting rod 4 it is upper
End and first eccentric cam 2 or capacity eccentric bearing rotatable engagement, the lower end of lift tooth connecting rod 4 are another with the lift tooth rear crank 5
One end is hinged.In the application, fixed first eccentric cam 2 on upper axis 1；First eccentric cam 2 includes being connected with upper axis 1
The first connecting portion connect and the second connecting portion being connected with lift tooth connecting rod 4, the first connecting portion and second connecting portion are inclined
The heart is set, so that the center and the center of upper axis 1 of 4 upper end of lift tooth connecting rod are misaligned, therefore when the upper axis 1 of the first motor 3 driving
During rotation, upper axis 1 drives the first eccentric cam 2 to rotate synchronously, the upper end for the lift tooth connecting rod 4 being connected with the first eccentric cam 2
Rotated centered on above axis 1, therefore lift tooth connecting rod 4 does and approximately moves back and forth up and down；Lift tooth connecting rod 4 and drive lift tooth rear crank 5
End synchronously move back and forth up and down so that feed lifting rock shaft 6 centered on own axes line and in certain angular range come
Backswing is moved.
Embodiment two, as shown in figure 4, first gear unit 100 include first connecting rod 20, second connecting rod 21 and first
Sliding block 22, one end of the first connecting rod 20 are fixed on axis 1, and one end of the second connecting rod 21 is fixed on feed lifting rock shaft 6,
First sliding block 22 is articulated with the other end of first connecting rod 20 and is slideably sleeved on second connecting rod 21, described second
Connecting rod 21 is radially extended along feed lifting rock shaft 6.Upper axis 1 drives the upper end of first connecting rod 20 to rotate, thus the lower end of first connecting rod 20 with
Line swings back and forth centered on the axis of upper axis 1, and drives the second company by sliding of first sliding block 22 on second connecting rod 21
The line centered on the axis of feed lifting rock shaft 6 of bar 21 swings back and forth, so as to drive the line and one centered on own axes of feed lifting rock shaft 6
Swing back and forth in fixed angular range, i.e., upper axis 1 drives feed lifting rock shaft 6 to swing by slider-crank mechanism.
Second gear unit 200 also has following two preferred embodiments：
Embodiment one, as shown in Fig. 2, second gear unit 200 includes feed lifting rock fork-shaped crank 7 and is articulated with retainer 8
Second sliding block 18 of end, one end of the feed lifting rock fork-shaped crank 7 are fixed on feed lifting rock shaft 6, the other end of feed lifting rock fork-shaped crank 7
The sliding slot 71 radially extended along feed lifting rock shaft 6 is offered, second sliding block 18 is arranged in sliding slot 71 and can prolonging along sliding slot 71
Direction is stretched to move back and forth.Feed lifting rock shaft 6 drives one end synchronous hunting of feed lifting rock fork-shaped crank 7, synchronously, passes through 18 He of the second sliding block
The mutual cooperation of sliding slot 71 drives retainer 8 and feeding tooth 9 synchronously to move back and forth up and down together.
Embodiment two, as shown in figure 5, second gear unit 200 include being fixed on feed lifting rock shaft 6 it is second eccentric convex
Wheel 23 and third connecting rod 24, one end of the third connecting rod 24 be hinged with the second eccentric cam 23, third connecting rod 24 it is another
End is hinged with retainer 8.Second eccentric cam 23 includes the 3rd connecting portion and and third connecting rod being connected with feed lifting rock shaft 6
24 the 4th connecting portions being connected, the 3rd connecting portion and the 4th connecting portion eccentric setting, so that under third connecting rod 24
The center at end and the center of feed lifting rock shaft 6 are misaligned；Therefore when feed lifting rock shaft 6 drives the second eccentric cam 23 to swing back and forth, the 3rd connects
The lower end of bar 24 is swung back and forth centered on feed lifting rock shaft 6 so that the lower end of third connecting rod 24 is centered on feed lifting rock shaft 6 and back and forth
Swing, therefore third connecting rod 24 does and approximately moves back and forth up and down, so as to drive retainer 8 and feeding tooth 9, synchronization is up and down reciprocatingly together
It is mobile.
In above-mentioned Tai Ya mechanisms, the rotation of the first motor 3 can be directly delivered on retainer 8, to ensure the first motor 3
Rotate the synchronism between the moving back and forth up and down of retainer 8.In addition, the application is swinging up and down and sending by feed lifting rock shaft 6
Expect that the swing of axis 17 drives retainer 8 and feeding tooth 9 to act jointly, therefore when when turning needle gage and big needle distance down, work feed starts
Between and the work feed end time be basically unchanged, such as when sewing machine is turned down to 3 needle gage by 5 needle gages, the work feed time started shift to an earlier date 5 °/
360 °, the work feed end time delays 2 °/360 °；When sewing machine is turned down to 1 needle gage by 5 needle gages, the work feed time started shift to an earlier date 5 °/
360 °, the work feed end time delays 4 °/360 °.If tooth is driven by the rotation of feed lifting rock shaft 6 and the swing of feed spool 17 jointly
Frame 8 and feeding tooth 9 act, then when sewing machine is turned down to 3 needle gage by 5 needle gages, the work feed time started shifts to an earlier date 10 °/360 °, work feed
End time delays 15 °/360 °；When sewing machine is turned down to 1 needle gage by 5 needle gages, the work feed time started shifts to an earlier date 20 °/360 °, send
The cloth end time delays 25 °/360 °.It can thus be concluded that go out：Using this application involves feed mechanism carry out work feed after, total work feed
Time incrementss are less, so as to effectively avoid the offset of feeding time point, prevent take-up bad or phenomena such as broken needle failure, finally
Improve sewing quality.In addition, Tai Ya mechanisms are link transmission, so, even if sewing machine low speed is run, its noise is all without very
Greatly, and link transmission failure rate it is relatively low compared to for toothed belt transmission, maintenance it is also more convenient.
Preferably, as shown in figure 3, second sliding block 18 includes slider body 181 and arranged on 181 right end of slider body
Sliding block flange 182, the slider body 181 as in sliding slot 71, slider body 181 and sliding slot 71 be plane contact, therefore second
Sliding block 18 cannot be rotated in sliding slot 71, can only moved in sliding slot 71, thus when feed lifting rock fork-shaped crank 7 is swung up and down, can
Retainer 8 is driven synchronously to swing up and down by the second sliding block 18；Second sliding block 18 is cut with scissors by a pin 19 and 8 phase of retainer
Connect, the head of the pin 19 and sliding block flange 182 are located at the left and right sides of 7 rear end of feed lifting rock fork-shaped crank, can limit the second cunning
Relative to feed lifting rock fork-shaped crank 7 left and right play occurs for block 18.
Further, the cloth feeding mechanism has two kinds of preferred embodiments, and embodiment one, be shown in Fig. 1 and Fig. 2, the cloth feed machine
Structure includes the feed spool 17 parallel with feed lifting rock shaft 6, drive rod 15, intermediate bar 14, output rod 13 and retainer seat 10, the driving
One end of bar 15 is fixed on the output shaft of the second motor 16, the both ends of the intermediate bar 14 other end with drive rod 15 respectively
It is hinged with one end of output rod 13,13 other end of output rod and retainer seat 10 are all fixed on feed spool 17, the retainer
The rear end of seat 10 and retainer 8 is hinged.The output shaft of second motor 16 carrys out back rotation in certain angular range, so that band
The dynamic swing in certain angular range of drive rod 15；Drive rod 15 drives feed spool by intermediate bar 14 and output rod 13
17 and retainer seat 10 it is synchronous it is front and rear move back and forth, so as to drive the front and rear reciprocating movement together of retainer 8 and feeding tooth 9.By adjusting
The input quantity of second motor 16 can adjust retainer 8 and feeding tooth 9 moves back and forth the size of amplitude, and then realize feeding tooth kind more than 9
The change of movement locus, to realize the variation of sewing track.Preferably, second motor 16 is a stepper motor, is passed through
Encoder can easily change the input quantity of stepper motor, in order to adjust the movement locus of feeding tooth 9.In addition, the lift tooth
Axis 6 is located at the front side of feeding tooth 9, and the feed spool 17 is located at the rear side of feeding tooth 9, i.e. feed lifting rock shaft 6 exists in preceding, feed spool 17
Afterwards, first sewing is lifted up again dragging sewing backward so in feeding, is more conducive to feeding.
Embodiment two, as shown in Figure 9 and Figure 10, the cloth feeding mechanism include drive rod 15, intermediate bar 14 and rotationally
The retainer seat 10 being supported in baseplate of sewing machine, the retainer seat 10 include the axially extending retainer seat body 101 in left and right and
The transmission arm 102 radially extended along retainer seat body 101, is fixed with one or so axially extending pin on the bottom plate of the sewing machine
Axis 35, the axis pin 35 are threaded through in retainer seat body 101, therefore the fixation swing pivot that axis pin 35 is retainer seat body 101；It is described
One end of drive rod 15 is fixed on the output shaft of the second motor 16, and the both ends of the intermediate bar 14 are respectively at the another of drive rod 15
The transmission arm 102 of one end and retainer seat 10 is hinged.The output shaft of second motor 16 in certain angular range back and forth
Rotate, so as to drive the swing in certain angular range of drive rod 15；Drive rod 15 drives retainer by intermediate bar 14
Seat 10 is front and rear to be moved back and forth, so as to drive the front and rear reciprocating movement together of retainer 8 and feeding tooth 9.The embodiment eliminates feed spool,
Retainer seat 10 directly drives retainer 8, it can ensure the accuracy that movement is transmitted, and also simplify cloth feeding mechanism, reduce its occupancy
Space.
In two embodiments of above-mentioned cloth feeding mechanism, the output shaft of second motor 16 is in one direction and opposite direction
It is unidirectional to swing once, before and after the retainer 8 reciprocating swing once, therefore the biography between the output shaft and retainer seat 10 of the second motor 16
Dynamic ratio is 2:1, successively come reduce the rotation direction of 16 output shaft of the second motor switching frequency, improve sewing quality.
Further, Fig. 1 and Fig. 3 are seen, the retainer seat 10 and retainer 8 are hinged by a cam pin 11, the bias
Pin 11 includes the first axle part 111,112 and the 3rd axle portion 113 of the second axle part, 111 and the 3rd axle portion 113 of the first axle part successively
It is arranged concentrically, 112 eccentric setting of the first axle part 111 and the second axle part, 111 and the 3rd axle portion 113 of the first axle part can all turn
It is connected to dynamicly in retainer seat 10, the second axle part 112 is rotatably connected in retainer 8.Tooth is realized using cam pin 11
Hingedly having the advantages that for stand 10 and retainer 8 is following two：1st, rotating cam pin 11 can realize that retainer 8 moves back and forth the tune of amplitude
It is whole, further easy to the adjustment of 9 movement locus of feeding tooth；2nd, drive rod 15, intermediate bar 14, output rod 13, feed spool 17, retainer
Seat 10 and the grade of retainer 8 part are all there are certain foozle, therefore entirety can also exist necessarily after the completion of cloth feeding mechanism assembling
Foozle, the foozle can cause the rotation of the second motor 16 retainer 8 cannot be driven to move back and forth exactly；Set eccentric
After pin 11, transmission deviation caused by the foozle of each part can be offset by rotating cam pin 11, ensures the second motor
16 rotation can be transferred to retainer 8 exactly, drive retainer 8 is front and rear to move back and forth exactly, to ensure that feeding tooth 9 moves rail
The accuracy of mark, improves sewing quality.In addition, for the ease of rotating cam pin 11, the left end of the cam pin 11 offers one
Font or criss-cross rotation slot 114, cam pin 11 is rotated easy to screwdriver.
Preferably, in the embodiment one of above-mentioned cloth feeding mechanism, output rod 13 and retainer seat 10 are separately fixed at feed spool 17
Both ends, the output rod 13 is fixedly connected with retainer seat 10, further ensures that the standard transmitted between the second motor 16 and retainer 8
True property, no time lag.The fixed structure of the output rod 13 and retainer seat 10 has two kinds of preferred embodiments, embodiment one,
The fixed pin of left and right extension is set between output rod 13 and retainer seat 10, right end and the output rod 13 of fixed pin are tightly fixed,
The left end retainer seat 10 of fixed pin is tightly fixed, and output rod 13 is fixedly connected with retainer seat 10.Embodiment two, exporting
The trip bolt of left and right extension is worn in bar 13 and retainer seat 10, the end thread of the trip bolt is connected with a clamp nut,
The output rod 13 and retainer seat 10 are located between head and the clamp nut of trip bolt, by output rod 13 and retainer seat 10
It is fixedly connected.
Further, in order to rationally utilize the inner space of sewing machine and reduce the occupied space of sewing machine, described first
Motor 3 directly uses the main motor of sewing machine, and the upper axis 1 is the main shaft of sewing machine, and second motor 16 is positioned at the first electricity
The lower section of machine 3, the first motor 3 is fixed on the casing right end of sewing machine, the second motor 16 is fixed on the bottom plate of sewing machine.
In addition, the structure of the hook line mechanism and driving unit 300 is as follows：As depicted in figs. 1 and 2, hook line mechanism includes
The rotating shuttle 41 of 25 end of lower axle is installed in, driving unit 300 includes the vertical pivot 26 extended up and down and four bevel gears：The upper axis
First bevel gear 27 is fixed with 1, the upper end of vertical pivot 26 is fixed with the second bevel gear 28 being meshed with first bevel gear 27；Institute
State and third hand tap gear 29 is fixed with lower axle 25, the lower end of vertical pivot 26 is fixed with the 4th cone tooth being meshed with third hand tap gear 29
Wheel 30.Upper axis 1 drives first bevel gear 27 to rotate synchronously, and passes through the intermeshing band of first bevel gear 27 and second bevel gear 28
Dynamic vertical pivot 26 rotates, then drives lower axle 25 to rotate by the intermeshing of 29 and the 4th bevel gear 30 of third hand tap gear, lower axle 25
Left end be fixed with the rotating shuttle 41 positioned at the lower section of needle plate 12, so as to drive rotating shuttle 41 to rotate；Can by said gear drive mechanism
The gearratio for conveniently realizing axis 1 and lower axle 25 is 1:2, and the reliable stabilization of gear transmission structure.
The structure of the shank Yarn taking-up mechanism is as follows：As shown in Fig. 1, Fig. 6 to Fig. 8, including the take-up equipped with threading hole 331
Bar 33, thread take-up crank 31 and the needle bar crank 32 for being fixed on 1 left end of axis, the thread take-up crank 31 are equipped with eccentric with upper axis 1
The 4th axle portion 311 set, the 4th axle portion 311 are fixed in needle bar crank 32, and described choose also is hinged with the 4th axle portion 311
Line bar 33, the line-choosing connecting rod 34 to extend back, the rear end of line-choosing connecting rod 34 are probably hinged with thread take-up tension lever 33 at the position at middle part
An axis pin 35 is rotatably coupled, which is fixed in the casing of sewing machine, therefore axis pin 35 swings for line-choosing connecting rod 34
Fixed pivot.When shank 42 moves down thorn cloth, thread take-up tension lever 33 supplies line；When shank 42 moves up, thread take-up tension lever 33 is fast
Fast take-up.
The shank Yarn taking-up mechanism further includes shank 42, the eedle 40 for being fixed on 42 lower end of shank, shank connecting rod 36, fixation
Guide rail 37, the 3rd sliding block 38 and the anchor ear 39 being fixed on shank 42 in sewing machine case, set on the thread take-up crank 31
Have the 5th axle portion 312 with upper axis 1, the 4th axle portion 311 all eccentric settings, the 5th axle portion 312 by a needle bearing and
The upper end of shank connecting rod 36 is hinged, hinged the 3rd sliding block 38 in right side of 36 lower end of shank connecting rod, 36 lower end of shank connecting rod
Left side is connected with the anchor ear 39, and the guide groove 371 of about one extension, the 3rd sliding block 38 are offered in the guide rail 37
It can slide up and down in guide groove 371 and in guide groove 371, to drive shank 42 and eedle 40 synchronously up and down reciprocatingly to move
It is dynamic.
Preferably, the left end of the upper axis is additionally provided with a upper axis protheca being fixed in sewing machine case, and the upper axis can
It is rotatably supported in axis protheca.
In conclusion sewing machine of the present invention has the advantages that：
1st, the rotation of the first motor 3 can be directly accurate and synchronously drives retainer 8 and feeding tooth 9 to move back and forth up and down,
So as to avoid the offset of feeding time point, to improve sewing quality；
2nd, the first motor 3 drives retainer 8 and feeding tooth 9 to move back and forth up and down by linkage, compared to the prior art
In toothed belt transmission for, noise is low during operation, failure rate is low, and is also easily accessible for service；
3rd, feed lifting rock shaft 6 is more conducive to work feed in preceding, feed spool 17 rear；
4th, retainer seat 10 and retainer 8 are hinged by cam pin 11, it is conveniently adjusted the movement locus of feeding tooth 9, moreover it is possible to supports
The transmission deviation to disappear caused by the foozle of part, ensures transmission accuracy.
So the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of sewing machine, including by the first motor (3) driving upper axis (1), be located at the shank take-up machine of upper axis (1) end
Structure, the lower axle (25) parallel with upper axis (1), the hook line mechanism for being located at lower axle (25) end, retainer (8) and it is fixed on tooth
Feeding tooth (9) on frame (8), the upper axis (1) are connected by driving unit (300) with lower axle (25), and upper axis (1) passes through lift
Tooth mechanism is connected with the one end of retainer (8), it is characterised in that：The second motor (16) is further included, second motor (16) is logical
The other end that cloth feeding mechanism is crossed with retainer (8) is connected；The Tai Ya mechanisms include the feed lifting rock shaft (6) parallel with upper axis (1),
The upper axis (1) be connected by the first gear unit (100) with feed lifting rock shaft (6) and drive feed lifting rock shaft (6) using own axes as
Center line swings back and forth up and down, and the feed lifting rock shaft (6) is connected with retainer (8) by the second gear unit (200) and drives tooth
Frame (8) moves back and forth up and down；The cloth feeding mechanism includes feed spool that is parallel with upper axis (1) and front and rear can swinging back and forth
(17)；Retainer (8) and feeding tooth are driven by swinging up and down for the feed lifting rock shaft (6) jointly with the swing of feed spool (17)
(9) act, when making to turn down needle gage and tuning up needle gage work feed time started and work feed end time be basically unchanged.
2. sewing machine according to claim 1, it is characterised in that：First gear unit (100) includes being fixed on
The first eccentric cam (2) or capacity eccentric bearing on axis (1), the lift tooth rear crank (5) being fixed on feed lifting rock shaft (6) and lift tooth
Connecting rod (4), the upper end of the lift tooth connecting rod (4) and first eccentric cam (2) or capacity eccentric bearing rotatable engagement, lift tooth connecting rod
(4) lower end is hinged with the lift tooth rear crank (5).
3. sewing machine according to claim 1, it is characterised in that：First gear unit (100) includes first connecting rod
(20), second connecting rod (21) and the first sliding block (22), one end of the first connecting rod (20) are fixed on axis (1), and described
One end of two connecting rods (21) is fixed on feed lifting rock shaft (6), first sliding block (22) be articulated with first connecting rod (20) the other end,
And slideably it is sleeved on second connecting rod (21).
4. sewing machine according to claim 1, it is characterised in that：Second gear unit (200) includes feed lifting rock fork-shaped
Crank (7) and the second sliding block (18) for being articulated with retainer (8) end, one end of the feed lifting rock fork-shaped crank (7) are fixed on lift tooth
On axis (6), the other end of feed lifting rock fork-shaped crank (7) offers the sliding slot (71) radially extended along feed lifting rock shaft (6), and described second
Sliding block (18) is arranged in sliding slot (71) and can move back and forth along the extending direction of sliding slot (71).
5. sewing machine according to claim 1, it is characterised in that：Second gear unit (200) includes being fixed on lift
The second eccentric cam (23) and third connecting rod (24) on tooth axis (6), one end of the third connecting rod (24) are eccentric convex with second
Wheel (23) is hinged, and the other end and the retainer (8) of third connecting rod (24) are hinged.
6. sewing machine according to claim 1, it is characterised in that：The cloth feeding mechanism further includes drive rod (15), centre
Bar (14), output rod (13) and retainer seat (10), one end of the drive rod (15) are fixed on the output shaft of the second motor (16)
On, the both ends of the intermediate bar (14) are hinged respectively at the other end of drive rod (15) and one end of output rod (13), described defeated
Rod (13) other end and retainer seat (10) are all fixed on feed spool (17), and the retainer seat (10) and retainer (8) are hinged.
7. sewing machine according to claim 6, it is characterised in that：The retainer seat (10) and retainer (8) are eccentric by one
Pin (11) is hinged, and the cam pin (11) includes the first axle part (111), the second axle part (112) and the 3rd axle portion successively
(113), the first axle part (111) and the 3rd axle portion (113) be arranged concentrically, the first axle part (111) and the second axle part (112) it is inclined
The heart is set, and the first axle part (111) and the 3rd axle portion (113) are all rotatably connected in retainer seat (10), and described second
Axle portion (112) is rotatably connected in retainer (8).
8. sewing machine according to claim 6, it is characterised in that：The output rod (13) and the fixed company of retainer seat (10)
Connect.
9. sewing machine according to claim 1, it is characterised in that：The cloth feeding mechanism includes drive rod (15), intermediate bar
(14) and the retainer seat (10) that is rotatably supported in baseplate of sewing machine, one end of the drive rod (15) are fixed on the second electricity
On the output shaft of machine (16), the both ends of the intermediate bar (14) are mutually cut with scissors respectively at the other end of drive rod (15) with retainer seat (10)
Connect.
10. the sewing machine according to claim 6 or 9, it is characterised in that：The output shaft of second motor (16) is towards one
Direction and opposite direction are unidirectionally swung once, and reciprocating swing is once before and after the retainer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640000.2A CN105113152B (en) | 2015-09-30 | 2015-09-30 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510640000.2A CN105113152B (en) | 2015-09-30 | 2015-09-30 | Sewing machine |
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| Publication Number | Publication Date |
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| CN105113152A CN105113152A (en) | 2015-12-02 |
| CN105113152B true CN105113152B (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510640000.2A Active CN105113152B (en) | 2015-09-30 | 2015-09-30 | Sewing machine |
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| Country | Link |
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| CN (1) | CN105113152B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105624932A (en) * | 2015-12-29 | 2016-06-01 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN105442195B (en) * | 2015-12-29 | 2018-11-23 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN108625049A (en) * | 2017-03-20 | 2018-10-09 | 杰克缝纫机股份有限公司 | The lift tooth material feeding driving mechanism and sewing machine of sewing machine |
| CN108625048A (en) * | 2017-03-20 | 2018-10-09 | 杰克缝纫机股份有限公司 | The lift tooth material feeding driving mechanism and sewing machine of sewing machine |
| CN110761003B (en) * | 2018-07-27 | 2021-11-23 | 拓卡奔马机电科技有限公司 | Needle shuttle clearance automatic regulating mechanism and sewing machine |
| CN108998899B (en) * | 2018-08-16 | 2021-05-11 | 杰克缝纫机股份有限公司 | Automatic improve work feed mechanism of receiving line |
| CN111118758B (en) * | 2018-10-31 | 2021-08-27 | 拓卡奔马机电科技有限公司 | Needle and shuttle cooperation automatic regulating mechanism and sewing machine |
| CN111118759B (en) * | 2018-10-31 | 2021-07-23 | 拓卡奔马机电科技有限公司 | Needle and shuttle cooperation automatic regulating mechanism and sewing machine |
| CN109930305A (en) * | 2019-04-08 | 2019-06-25 | 杰克缝纫机股份有限公司 | A kind of encryption seam adjustment structure of sewing machine |
| CN110438668B (en) * | 2019-07-10 | 2021-06-22 | 南京铁道职业技术学院 | Split type traction seam laying device |
| CN112981736B (en) * | 2019-12-17 | 2022-06-17 | 杰克科技股份有限公司 | Sewing machine |
| CN113026223A (en) * | 2019-12-25 | 2021-06-25 | 杰克缝纫机股份有限公司 | Feeding mechanism of sewing machine and sewing machine with feeding mechanism |
| CN111332554B (en) * | 2020-02-12 | 2021-04-06 | 大连理工大学 | Hand-held paper embroidery packaging machine |
| CN111304838B (en) * | 2020-03-10 | 2021-11-09 | 杰克缝纫机股份有限公司 | Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine |
| CN111197202B (en) * | 2020-03-19 | 2021-06-29 | 杰克缝纫机股份有限公司 | Feed lifting shaft assembly and sewing machine with same |
| CN114934357A (en) * | 2022-06-10 | 2022-08-23 | 浙江多乐缝纫机有限公司 | Sewing machine |
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| CN105113152A (en) | 2015-12-02 |
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Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |