CN209456685U - A kind of sewing machine - Google Patents
A kind of sewing machine Download PDFInfo
- Publication number
- CN209456685U CN209456685U CN201822194234.0U CN201822194234U CN209456685U CN 209456685 U CN209456685 U CN 209456685U CN 201822194234 U CN201822194234 U CN 201822194234U CN 209456685 U CN209456685 U CN 209456685U
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- Prior art keywords
- shank
- turnbarrel
- driving
- gear
- sewing machine
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- 238000009958 sewing Methods 0.000 title claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 claims description 20
- 230000008094 contradictory effect Effects 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model belongs to technical field of sewing machines, refer in particular to a kind of sewing machine, including shank rotating device, shank rotating device includes the shank being arranged on casing, shank is moved up and down by driving mechanism driving, the first rotating electric machine is provided on casing, first rotating electric machine is sequentially connected with turnbarrel by gear assembly, turnbarrel is rotatably connected on casing by first bearing, the upper end of shank is threaded through in turnbarrel, and turnbarrel connect realization with shank by rotatable connection component and rotates synchronously.It is sequentially connected between the first rotating electric machine of the utility model and turnbarrel by gear assembly, reduce the drive gap between driving member, noise is effectively reduced, meanwhile gear assembly can adjust the transmission ratio between the first rotating electric machine and turnbarrel, enhance the driving torque of turnbarrel, avoid shank and turnbarrel that stuck phenomenon occurs, its stable transmission is reliable, and precision is high, fast response time.
Description
Technical field:
The utility model belongs to technical field of sewing machines, refers in particular to a kind of sewing machine.
Background technique:
The shuttle race machine that conventional sewing machine generally comprises the needle bar mechanism being installed on upper casing and is installed on lower casing
Structure, needle bar mechanism drive upper axis rotation to drive and move up and down to realize the sewing action up and down of sewing needle by upper spindle motor,
Shuttle race mechanism cooperates sewing needle to carry out sewing operation by the rotational motion of lower axle motor driven.However when being sewed, needle
Bar, which can not achieve, carries out adaptable rotation according to the stitching of sewing, so that baseline and upper thread exist under the push-and-pull action of feeding
Force unbalance when hooking sutures, the suture direction of sewing needle cannot be consistent with the sewing stitching of setting, eventually lead to seam
There is the defects of loose, irregular, uneven in the stitching of conjunction, and the serious aesthetic appearance and sewing quality for influencing product is led
Cause the qualification rate of product lower.
A kind of needle bar of sewing machine synchronous rotating mechanism of existing Chinese invention patent (application number: CN201510152517.7),
Including be installed on upper casing for inserting the shank of sewing needle, and the shank motor of driving shank rotation, shank it is upper
End wear connection one rotating seat, rotating seat be equipped with clamp shank first bearing, shank move up and down when with first bearing shape
At rolling friction；Rotating seat is fixed together with shank upper bush, and shank upper bush is located at upper machine by second bearing group
On shell, rotating seat is connect with shank motor by toothed belt transmission.The structure passes through synchronous belt due to rotating seat and shank motor
Transmission connection, there are transmission stabilities it is not high, noise is larger, and precision is low and response speed is slow the problems such as, do not adapt to efficiently
The needs of rate sewing.
Summary of the invention:
That the purpose of the utility model is to provide a kind of shank rotary drives is stable, noise is small, precision is high and fast response time
Sewing machine.
The utility model is realized in this way:
A kind of sewing machine, including shank rotating device, the shank rotating device include the shank being arranged on casing,
Shank is moved up and down by driving mechanism driving, the first rotating electric machine is provided on the casing, the first rotating electric machine passes through gear
Component is sequentially connected with turnbarrel, and turnbarrel is rotatably connected on casing by first bearing, the upper end of the shank
Be threaded through in turnbarrel, and shank can relative rotation sleeve slide up and down, turnbarrel pass through rotatable connection component and shank
Connection, which is realized, to be rotated synchronously.
In a kind of above-mentioned sewing machine, the gear assembly includes the driving gear and driven gear being meshed, main
Moving gear is arranged on the output shaft of the first rotating electric machine, and driven gear is arranged on turnbarrel, and driving gear is with the first rotation
The output shaft synchronous of rotating motor rotates, and driven gear and turnbarrel rotate synchronously.
In a kind of above-mentioned sewing machine, the periphery of the gear assembly is provided with gear housing, and gear housing passes through tight
Firmware is fixedly connected on casing, and the turnbarrel is rotatably connected on gear housing by first bearing.
In a kind of above-mentioned sewing machine, the rotatable connection component includes the rotation branch being arranged on turnbarrel
, it is provided with fixing seat on rotary support, contradictory piece is provided in fixing seat, is axially arranged on the upper end side wall of the shank
There is plane, contradictory piece is contacted with planar slide；
Or the rotatable connection component is slidably connected for the upper end of shank by spline and turnbarrel.
In a kind of above-mentioned sewing machine, the contradictory piece is second bearing or idler wheel, and second bearing or idler wheel pass through pin
Axis is rotatably connected in fixing seat.
In a kind of above-mentioned sewing machine, between the rotary support and fixing seat by fastener connect or be integral type
Structure.
In a kind of above-mentioned sewing machine, the driving mechanism include the guide plate being arranged on casing and with it is dynamic
The main shaft of power source transmission connection, is provided with sliding slot on guide plate, the end of main shaft is provided with crank, and crank passes through along the vertical direction
Connecting rod is hinged with trundle, and one end of trundle is provided with propeller shaft sleeve, and the other end is slidably connected in sliding slot, propeller shaft sleeve set
Be located on shank and shank can relative drive shaft set rotation, be provided on the shank of propeller shaft sleeve upper and lower ends positioning gear
Block.
In a kind of above-mentioned sewing machine, further include have positioned at lower parts of needle rotation shuttle seat and be arranged in rotation shuttle seat
Rotating shuttle is provided with the driving motor of driving rotating shuttle rotation in rotation shuttle seat and rotation shuttle seat, rotating shuttle and shank is driven to rotate synchronously
Horizontal rotary mechanism.
In a kind of above-mentioned sewing machine, the horizontal rotary mechanism includes the positioning seat being arranged on casing, positioning
It is rotatably connected to activity mounting disc on seat, the rotation shuttle seat is connected on the upper surface of activity mounting disc by fastener, activity
The lower end surface of mounting disc is connected with the first synchronizing wheel by coupled wheel or universal driving shaft, and activity mounting disc, the first synchronizing wheel with
Shank is located on same axis, and the second rotating electric machine is provided on casing, is provided with second on the output shaft of the second rotating electric machine
Synchronizing wheel, the first synchronizing wheel are connect with the second synchronizing wheel by toothed belt transmission.
In a kind of above-mentioned sewing machine, large-diameter portion and small diameter portion, the activity mounting disc are provided on the positioning seat
It is arranged in large-diameter portion, the coupled wheel or universal driving shaft are arranged in small diameter portion.
The advantage that the utility model protrudes compared with prior art is:
1, it is sequentially connected between the first rotating electric machine of the utility model and turnbarrel by gear assembly, instead of existing skill
Toothed belt transmission in art reduces the drive gap between driving member, and noise caused by transmission is effectively reduced, meanwhile, gear
Component can adjust the transmission ratio between the first rotating electric machine and turnbarrel, enhance the driving torque of turnbarrel, avoid needle
Stuck phenomenon occurs for bar and turnbarrel, and stable transmission is reliable, and precision is high, fast response time；
2, during sewing, rotating shuttle and shank keep rotating synchronously the utility model, so that the suture direction of sewing needle
Can be consistent with the sewing stitching of setting, baseline and upper thread force unbalance under the action of feeding push-and-pull are avoided, and then ensure to stitch
Zygonema mark is neat, uniform, beautiful, effectively promotes the quality and qualification rate of product.
Detailed description of the invention:
Fig. 1 is the sewing machine overall schematic of the utility model；
Fig. 2 is the shank rotating device and driving mechanism schematic diagram of the utility model；
Fig. 3 is the shank rotating device and driving mechanism explosive view of the utility model；
Fig. 4 is the partial enlarged view A of Fig. 3；
Fig. 5 is the rotating shuttle, rotation shuttle seat and horizontal rotary mechanism schematic diagram one of the utility model；
Fig. 6 is the rotating shuttle, rotation shuttle seat and horizontal rotary mechanism schematic diagram two of the utility model；
Fig. 7 is the horizontal rotary mechanism explosive view of the utility model.
In figure: 1, casing；2, shank；3, the first rotating electric machine；4, turnbarrel；5, first bearing；6, driving gear；7,
Driven gear；8, gear housing；9, rotary support；10, fixing seat；11, plane；12, second bearing；13, pin shaft；14, it is oriented to
Plate；15, main shaft；16, sliding slot；17, crank；18, connecting rod；19, trundle；20, propeller shaft sleeve；21, position block；22, rotating shuttle
Seat；23, rotating shuttle；24, driving motor；25, positioning seat；26, activity mounting disc；27, coupled wheel；28, the first synchronizing wheel；29,
Two rotating electric machines；30, the second synchronizing wheel；31, synchronous belt.
Specific embodiment:
The utility model is further described with specific embodiment below, referring to Fig. 1-7:
A kind of sewing machine, including shank rotating device, the shank rotating device include the shank being arranged on casing 1
2, shank 2 is moved up and down by driving mechanism driving, and the first rotating electric machine 3 is provided on the casing 1, and the first rotating electric machine 3 is logical
It crosses gear assembly and is sequentially connected with turnbarrel 4, turnbarrel 4 is rotatably connected on casing 1 by first bearing 5, the needle
The upper end of bar 2 is threaded through in turnbarrel 4, and shank 2 can relative rotation sleeve 4 slide up and down, turnbarrel 4 passes through rotation
Connection component connect realization with shank 2 and rotates synchronously.
It is sequentially connected between the first rotating electric machine of the utility model 3 and turnbarrel 4 by gear assembly, instead of existing skill
Toothed belt transmission in art reduces the drive gap between driving member, and noise caused by transmission is effectively reduced, meanwhile, gear
Component can adjust the transmission ratio between the first rotating electric machine 3 and turnbarrel 4, enhance the driving torque of turnbarrel 4, avoid
Stuck phenomenon occurs for shank 2 and turnbarrel 4, and stable transmission is reliable, and precision is high, fast response time.
A kind of embodiment of gear assembly: the gear assembly includes the driving gear 6 and driven gear being meshed
7, driving gear 6 is arranged on the output shaft of the first rotating electric machine 3, and driven gear 7 is arranged on turnbarrel 4, driving gear 6
It is rotated with the output shaft synchronous of the first rotating electric machine 3, driven gear 7 and turnbarrel 4 rotate synchronously.The present embodiment gear assembly
Using the embodiment.
Meanwhile in order to the transmission ratio size of further adjustment gear component, reinforce the stability of transmission, gear assembly
Another embodiment can also be used: the gear assembly includes driving gear 6, transmission gear and driven gear 7, is passed
Moving gear is meshed with driving gear 6, driven gear 7 respectively, and driving gear 6 is arranged on the output shaft of the first rotating electric machine 3,
Driven gear 7 is arranged on turnbarrel 4, and transmission gear is rotatably connected on casing 1 by fixing axle.
In order to avoid gear assembly and other component collide, the damage of gear assembly is caused, the gear assembly
Periphery is provided with gear housing 8, and gear housing 8 is fixedly connected on casing 1 by fastener, and the turnbarrel 4 passes through the
One bearing 5 is rotatably connected on gear housing 8.And in the present embodiment, the driving gear 6 and driven gear 7 of gear assembly are equal
For spur gear, the first rotating electric machine 3 is fixedly mounted on gear housing 8 by fastener.
A kind of embodiment of rotatable connection component: the rotatable connection component includes to be arranged on turnbarrel 4
Rotary support 9 is provided with fixing seat 10 on rotary support 9, contradictory piece, the upper end of the shank 2 is provided in fixing seat 10
Plane 11, contradictory piece and 11 sliding contact of plane are axially provided on side wall；
Further, in order to avoid shank 2 move up and down during, since dynamic friction causes between contradictory piece and plane 11
Abrasion influences the service life of component, and the contradictory piece is second bearing 12 or idler wheel, and second bearing 12 or idler wheel pass through pin shaft
13 are rotatably connected in fixing seat 10.The present embodiment contradictory piece is second bearing 12, and the inner ring fixation of second bearing 12 is set in
On pin shaft 13, the outer ring of second bearing 12 is rotated relative to pin shaft 13.
Meanwhile being connected between the rotary support 9 and fixing seat 10 by fastener, fixing seat 10 is fixedly mounted on rotation
The lower end surface of support 9；Or the rotary support 9 is an integral structure with fixing seat 10.
The another embodiment of rotatable connection component: the rotatable connection component is that the upper end of shank 2 passes through spline
It is slidably connected with turnbarrel 4.
In order to make shank 2 that can rotate under the driving of the first rotating electric machine 3 and driving mechanism driving
Under move up and down, the driving mechanism includes the guide plate 14 being arranged on casing 1 and is sequentially connected with power source
Main shaft 15 is provided with sliding slot 16 on guide plate 14 along the vertical direction, and the end of main shaft 15 is provided with crank 17, and crank 17 passes through company
Bar 18 is hinged with trundle 19, and one end of trundle 19 is provided with propeller shaft sleeve 20, and the other end is slidably connected in sliding slot 16, drives
Moving axis set 20 be set on shank 2 and shank 2 can relative drive shaft set 20 rotation, positioned at the shank of 20 upper and lower ends of propeller shaft sleeve
Position block 21 is provided on 2.Two position block 21 plays the role of axially position to propeller shaft sleeve 20, and main shaft 15 is logical
Cross crank 17, the driving trundle 19 of connecting rod 18 16 slides up and down along the chute, and then drives shank 2 to make upper and lower transport by propeller shaft sleeve 20
It is dynamic.Meanwhile in the present embodiment, trundle 19 is an integral structure with propeller shaft sleeve 20.
It further, further include rotation shuttle seat 22 and the rotating shuttle 23 that is arranged in rotation shuttle seat 22 having positioned at the lower section of shank 2, rotation
The driving motor 24 and drive rotation shuttle seat 22, rotating shuttle 23 are synchronous with shank 2 to turn that driving rotating shuttle 23 rotates are provided on shuttle seat 22
Dynamic horizontal rotary mechanism.During sewing, rotating shuttle 23 and shank 2 keep rotating synchronously the utility model, so that sewing needle
Suture direction can be consistent with the sewing stitching of setting, avoid baseline and upper thread feeding push-and-pull under the action of force unbalance,
It is neat, uniform, beautiful to ensure to suture stitching in turn, effective quality and qualification rate for promoting product.
Further, the set-up mode one of horizontal rotary mechanism: the horizontal rotary mechanism includes to be arranged on casing 1
Positioning seat 25 is rotatably connected to activity mounting disc 26 on positioning seat 25, and the rotation shuttle seat 22 is connected to movable peace by fastener
On the upper surface of sabot 26, the lower end surface of activity mounting disc 26 is connected with the first synchronizing wheel 28 by coupled wheel 27 or universal driving shaft,
And activity mounting disc 26, the first synchronizing wheel 28 are located on same axis with shank 2, and the second rotating electric machine is provided on casing 1
29, the second synchronizing wheel 30 is provided on the output shaft of the second rotating electric machine 29, and the first synchronizing wheel 28 passes through with the second synchronizing wheel 30
Synchronous belt 31 is sequentially connected.The present embodiment horizontal rotary mechanism uses the embodiment, passes through synchronization by the second rotating electric machine 29
31 driving activity mounting disc 26 of band circumferentially rotates, and then rotation shuttle seat 22, rotating shuttle 23 and shank 2 is driven to keep rotating synchronously.
The set-up mode two of horizontal rotary mechanism: its structure and set-up mode one are almost the same, and the main distinction is activity
The lower end surface of mounting disc 26 is connected with the first transmission gear, the output shaft of the second rotating electric machine 29 by coupled wheel 27 or universal driving shaft
On be provided with the second transmission gear, the first transmission gear is meshed with the second transmission gear.
Advanced optimize the connection structure between activity mounting disc 26 and positioning seat 25, the rotation of raising activity mounting disc 26
Stability is provided with large-diameter portion and small diameter portion on the positioning seat 25, and the activity mounting disc 26 is arranged in large-diameter portion, described
Coupled wheel 27 or universal driving shaft are arranged in small diameter portion.Meanwhile it is dynamic in order to avoid being generated between activity mounting disc 26 and positioning seat 25
Friction, the coupled wheel 27 or universal driving shaft are rotatably connected in small diameter portion by bearing, that is, play the role of support positioning.
Above-described embodiment is only one of preferred embodiment of the utility model, and the implementation of the utility model is not limited with this
Range, therefore: the equivalence changes that all shape, structure, principles according to the utility model are done should all be covered by the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of sewing machine, including shank rotating device, the shank rotating device includes the shank being arranged on casing (1)
(2), shank (2) is moved up and down by driving mechanism driving, it is characterised in that: is provided with the first rotating electric machine on the casing (1)
(3), the first rotating electric machine (3) is sequentially connected with turnbarrel (4) by gear assembly, and turnbarrel (4) passes through first bearing
(5) it is rotatably connected on casing (1), the upper end of the shank (2) is threaded through in turnbarrel (4), and shank (2) can be opposite
Turnbarrel (4) slides up and down, and turnbarrel (4) connect realization with shank (2) by rotatable connection component and rotates synchronously.
2. a kind of sewing machine according to claim 1, it is characterised in that: the gear assembly includes the active being meshed
Gear (6) and driven gear (7), driving gear (6) are arranged on the output shaft of the first rotating electric machine (3), and driven gear (7) is set
Set on turnbarrel (4), driving gear (6) with the first rotating electric machine (3) output shaft synchronous rotate, driven gear (7) with
Turnbarrel (4) rotates synchronously.
3. a kind of sewing machine according to claim 2, it is characterised in that: the periphery of the gear assembly is provided with gear-box
Body (8), gear housing (8) are fixedly connected on casing (1) by fastener, and the turnbarrel (4) passes through first bearing (5)
It is rotatably connected on gear housing (8).
4. a kind of sewing machine according to claim 1, it is characterised in that: the rotatable connection component includes that setting is being revolved
Rotary support (9) on rotaring sleeve (4) is provided with fixing seat (10) on rotary support (9), and fixing seat is provided with conflict on (10)
Part is axially provided with plane (11) on the upper end side wall of the shank (2), contradictory piece and plane (11) sliding contact；
Or the rotatable connection component is slidably connected by spline with turnbarrel (4) for the upper end of shank (2).
5. a kind of sewing machine according to claim 4, it is characterised in that: the contradictory piece is second bearing (12) or rolls
Wheel, second bearing (12) or idler wheel are rotatably connected on fixing seat (10) by pin shaft (13).
6. a kind of sewing machine according to claim 4, it is characterised in that: the rotary support (9) and fixing seat (10) it
Between by fastener connect or be an integral structure.
7. a kind of sewing machine according to claim 1, it is characterised in that: the driving mechanism includes to be arranged in casing
(1) guide plate (14) on and the main shaft (15) with power source transmission connection, guide plate are provided with along the vertical direction on (14)
Sliding slot (16), the end of main shaft (15) are provided with crank (17), and crank (17) is hinged with trundle (19) by connecting rod (18), are passed
One end of dynamic pin (19) is provided with propeller shaft sleeve (20), and the other end is slidably connected in sliding slot (16), and propeller shaft sleeve (20) is arranged
On shank (2) and shank (2) can relative drive shaft set (20) rotation, be located at propeller shaft sleeve (20) upper and lower ends shank (2)
On be provided with position block (21).
8. a kind of sewing machine according to claim 1-7, it is characterised in that: further include having under shank (2)
The rotation shuttle seat (22) of side and rotating shuttle (23) on rotation shuttle seat (22) is set, driving rotating shuttle (23) is provided in rotation shuttle seat (22)
The driving motor (24) of rotation and the horizontal rotation machine for driving rotation shuttle seat (22), rotating shuttle (23) and shank (2) synchronous rotation
Structure.
9. a kind of sewing machine according to claim 8, it is characterised in that: the horizontal rotary mechanism includes to be arranged in machine
Positioning seat (25) on shell (1) is rotatably connected to activity mounting disc (26) on positioning seat (25), and the rotation shuttle seat (22) passes through tight
Firmware is connected on the upper surface of activity mounting disc (26), and the lower end surface of activity mounting disc (26) by coupled wheel (27) or is linked
Axis connection has the first synchronizing wheel (28), and activity mounting disc (26), the first synchronizing wheel (28) are located at same axis with shank (2)
On, it is provided on casing (1) the second rotating electric machine (29), is provided with the second synchronizing wheel on the output shaft of the second rotating electric machine (29)
(30), the first synchronizing wheel (28) and the second synchronizing wheel (30) are sequentially connected by synchronous belt (31).
10. a kind of sewing machine according to claim 9, it is characterised in that: be provided with large-diameter portion on the positioning seat (25)
With small diameter portion, the activity mounting disc (26) is arranged in large-diameter portion, and the coupled wheel (27) or universal driving shaft are arranged in small diameter portion
It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822194234.0U CN209456685U (en) | 2018-12-25 | 2018-12-25 | A kind of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822194234.0U CN209456685U (en) | 2018-12-25 | 2018-12-25 | A kind of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209456685U true CN209456685U (en) | 2019-10-01 |
Family
ID=68042166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822194234.0U Expired - Fee Related CN209456685U (en) | 2018-12-25 | 2018-12-25 | A kind of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209456685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983661A (en) * | 2019-12-17 | 2020-04-10 | 拓卡奔马机电科技有限公司 | Upper machine head device capable of realizing synchronous rotation of upper thread following machine needle |
| CN112226926A (en) * | 2020-10-24 | 2021-01-15 | 深圳市雅诺科技股份有限公司 | Needle bar rotating mechanism of sewing machine |
-
2018
- 2018-12-25 CN CN201822194234.0U patent/CN209456685U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983661A (en) * | 2019-12-17 | 2020-04-10 | 拓卡奔马机电科技有限公司 | Upper machine head device capable of realizing synchronous rotation of upper thread following machine needle |
| CN110983661B (en) * | 2019-12-17 | 2021-09-28 | 拓卡奔马机电科技有限公司 | Upper machine head device capable of realizing synchronous rotation of upper thread following machine needle |
| CN112226926A (en) * | 2020-10-24 | 2021-01-15 | 深圳市雅诺科技股份有限公司 | Needle bar rotating mechanism of sewing machine |
| CN112226926B (en) * | 2020-10-24 | 2022-05-06 | 深圳市雅诺科技股份有限公司 | Needle bar rotating mechanism of sewing machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 |
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| CF01 | Termination of patent right due to non-payment of annual fee |