CN206706346U - A kind of structure of electrical motor of sewing machine thread trimmer - Google Patents
A kind of structure of electrical motor of sewing machine thread trimmer Download PDFInfo
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- CN206706346U CN206706346U CN201720391014.XU CN201720391014U CN206706346U CN 206706346 U CN206706346 U CN 206706346U CN 201720391014 U CN201720391014 U CN 201720391014U CN 206706346 U CN206706346 U CN 206706346U
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- sewing machine
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- rotary sleeve
- electrical motor
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Abstract
Utility model is related to a kind of structure of electrical motor of sewing machine thread trimmer, including pedestal and rotation shuttle seat, the stationary knife being provided with pedestal, rotary sleeve is socketed in rotation shuttle seat, rotary sleeve is with rotation shuttle seat central rotation, actuating arm and fixed part are set on rotary sleeve, and fixed part is fixed with the rotating blade coordinated with stationary knife, and described actuating arm is connected by connecting rod with the swing arm of a drive mechanism；Rotated by motor control moving knife with encoder, dynamic shear speed and the anglec of rotation can be changed by encoder, the length of shearing the end of a thread is controlled by shear rate and the anglec of rotation, the utility model has the characteristics of simple in construction, easy to adjust, wide adaptability.
Description
Technical field
A kind of sewing machine technique is the utility model is related to, specifically a kind of structure of electrical motor of sewing machine thread trimmer.
Background technology
Sewing machine is widely used in the industries such as clothing, weaving, after sewing machine sutures to cloth, it is necessary to by suture
Line is cut.In conventional sewing machine in the early time, because automaticity is not high, special thread cutting mechanism is not configured with mostly, when
Cloth sewing finishes, and is all manually to be cut line using instruments such as scissors by user.And with the continuous progress of science and technology, work
The automaticity more and more higher of industry sewing machine, existing industrial sewing machine are substantially all corresponding configuration automatic shearing mechanism,
Current thread cutting mechanism is typically that moving knife and stationary knife coordinate to realize that trimming works, but because moving knife motion amplitude and speed are all
Fixed, the remaining length of each trimming is consistent, but during sewing machine practical application, the fabric and material for different-thickness
The requirement of the remaining line length of line is asynchronous, therefore remaining the end of a thread to be often present long or too short cause for existing thread cutting mechanism
The problems such as off-line.
It is that CN204875125U discloses a kind of thread cutting mechanism of sewing machine for this notification number, including is fixed on the platform of sewing machine
Pedestal in plate and straight knife on pedestal and in the form of sheets is arranged at, straight knife with the vertical direction of platen along setting and can be upper and lower
Motion, the outside of straight knife is provided with rotary knife, and rotary knife is hinged with pedestal, and straight knife upper end is formed with cutting edge, formed with cutting edge on rotary knife,
The cutting edge of rotary knife is located at the top of the cutting edge of straight knife, and this, which cuts bottom line mechanism, also includes a driving structure, in the band of the driving structure
Dynamic lower straight knife can be moved upwards along vertical direction and rotary knife can rotate around pin joint, the thread cutting mechanism tool of this sewing machine
Have the advantages that applicability is wide, bottom line surplus can be controlled, but this cut mode by adjusting stationary knife position makes
Obtain trimming structure and seem more too fat to move, assembling is more complicated, so as to also increase the cost of product.
Utility model content
The purpose of this utility model is to provide a kind of structure of electrical motor of sewing machine thread trimmer, passes through motor with encoder
Moving knife rotation is controlled, dynamic shear speed and the anglec of rotation can be changed by encoder, pass through shear rate and the anglec of rotation
To control the length of shearing the end of a thread, the utility model has the characteristics of simple in construction, easy to adjust, wide adaptability.
Following technical scheme is used to achieve the above object：
A kind of structure of electrical motor of sewing machine thread trimmer, including pedestal and rotation shuttle seat, the stationary knife being provided with pedestal, its feature
It is：It is socketed rotary sleeve in rotation shuttle seat, rotary sleeve sets actuating arm and fixed part with rotation shuttle seat central rotation on rotary sleeve, Gu
Determine portion and be fixed with the rotating blade coordinated with stationary knife, described actuating arm is connected by connecting rod with the swing arm of a drive mechanism.
Described drive mechanism includes the servomotor with encoder, and servomotor is fixed on sewing machine by connecting plate
Below platen, swing arm is fixed with the output shaft of servomotor, the free end of swing arm and one end of connecting rod are hinged, connecting rod it is another
The free end with actuating arm is held to be hinged.
Location-plate is also set up in the end of described pedestal, location-plate plays position-limiting action to rotary sleeve.
Described rotating blade cambered surface design, rotating blade correspond to and offer guidewire port and wire casing on stationary knife end position,
One end of wire casing connects with guidewire port, and the wire casing other end is provided with trimming projection.
The utility model is prestored some groups in advance by independent Serve Motor Control rotating knife, the encoder of servomotor
Different trimming programs, for unlike material sewing thread, servomotor can cross the speed of rotating speed and anglec of rotation change and can realize
The control of the surplus of the end of a thread after trimming, there is the characteristics of simple in construction, easy to operate, applicability is wide.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the utility model other direction；
Fig. 3 is the structural representation of the utility model rotating blade.
Embodiment
As Figure 1-3, a kind of structure of electrical motor of sewing machine thread trimmer, including pedestal 1 and rotation shuttle seat 2, pedestal 1 are fixed on
The lower section of sewing machine table, the stationary knife 3 being provided with pedestal 1, rotary sleeve 4 is socketed in rotation shuttle seat 2, rotary sleeve 4 is with rotation shuttle seat 2
The heart rotates, and location-plate 5 is also set up in the end of described pedestal 1, location-plate 5 plays position-limiting action to rotary sleeve 4；Rotary sleeve 4
Upper setting actuating arm 41 and fixed part 42, fixed part 42 are fixed with the rotating blade 6 coordinated with stationary knife 3, described actuating arm 41
It is connected by connecting rod 7 with the swing arm 8 of a drive mechanism；Described drive mechanism includes the servomotor 9 with encoder, servo
Motor 9 is fixed on below sewing machine table by connecting plate 10, and swing arm 8 is fixed with the output shaft of servomotor 9, swing arm 8
Free end and one end of connecting rod 7 are hinged, and the free end of the other end and actuating arm 41 of connecting rod 7 is hinged.
The utility model mainly controls trimming speed by servomotor, because sewing thread material elasticity is different,
Sewing thread anti-shear ability is different, for example elasticity preferably nylon linear elasticity is preferable, and it is longer to shear the end of a thread left at a slow speed, therefore
THE ADIABATIC SHEAR IN is needed, and elastic poor cotton thread can just use low velocity shear；While fabric the end of a thread of different-thickness is made surplus and wanted
Seeking Truth is different, the control of shear rate and the anglec of rotation that the utility model passes through servomotor, and different trimming demands can be achieved,
Ensure that the end of a thread surplus meets the requirements, be only not susceptible to off-line the problem of attractive in appearance beautiful using sewing stitch.
The utility model is suitably modified to reach above-mentioned requirements to the structure of rotating blade 6, the wire of rotating blade 6
Mouth 61 ensures that clue enters thread cutting mechanism, and wire casing 62 is that the end of a thread surplus controls, and the trimming projection 63 of stationary knife 3 and rotating blade 6 is matched somebody with somebody
Close and realize last trimming work, the utility model improves trimming functional reliability and stability, while have it is simple in construction,
The characteristics of easy to adjust, wide adaptability.
Claims (4)
1. a kind of structure of electrical motor of sewing machine thread trimmer, including pedestal and rotation shuttle seat, the stationary knife that is provided with pedestal, its feature exists
In：It is socketed rotary sleeve in rotation shuttle seat, rotary sleeve sets actuating arm and fixed part with rotation shuttle seat central rotation on rotary sleeve, fixed
Portion is fixed with the rotating blade coordinated with stationary knife, and described actuating arm is connected by connecting rod with the swing arm of a drive mechanism.
A kind of 2. structure of electrical motor of sewing machine thread trimmer as claimed in claim 1, it is characterised in that：Described drive mechanism bag
The servomotor with encoder is included, servomotor is fixed on below sewing machine table by connecting plate, the output of servomotor
Swing arm is fixed with axle, the free end of swing arm and one end of connecting rod are hinged, and the other end of connecting rod and the free end of actuating arm are hinged.
A kind of 3. structure of electrical motor of sewing machine thread trimmer as claimed in claim 1, it is characterised in that：At the end of described pedestal
Portion also sets up location-plate, and location-plate plays position-limiting action to rotary sleeve.
A kind of 4. structure of electrical motor of sewing machine thread trimmer as claimed in claim 1, it is characterised in that：Described rotating blade arc
Face is designed, and rotating blade corresponds to and guidewire port and wire casing are offered on stationary knife end position, and one end of wire casing connects with guidewire port, line
The groove other end is provided with trimming projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720391014.XU CN206706346U (en) | 2017-04-14 | 2017-04-14 | A kind of structure of electrical motor of sewing machine thread trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720391014.XU CN206706346U (en) | 2017-04-14 | 2017-04-14 | A kind of structure of electrical motor of sewing machine thread trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206706346U true CN206706346U (en) | 2017-12-05 |
Family
ID=60454837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720391014.XU Active CN206706346U (en) | 2017-04-14 | 2017-04-14 | A kind of structure of electrical motor of sewing machine thread trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206706346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330617A (en) * | 2018-03-16 | 2018-07-27 | 无锡品益缝纫机有限公司 | Flat seam machine rotates moving knife structure |
| CN109629139A (en) * | 2019-01-30 | 2019-04-16 | 拓卡奔马机电科技有限公司 | The lower head system of sewing machine |
-
2017
- 2017-04-14 CN CN201720391014.XU patent/CN206706346U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108330617A (en) * | 2018-03-16 | 2018-07-27 | 无锡品益缝纫机有限公司 | Flat seam machine rotates moving knife structure |
| CN109629139A (en) * | 2019-01-30 | 2019-04-16 | 拓卡奔马机电科技有限公司 | The lower head system of sewing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210508 Address after: Room 282, administrative service center, cluster district, No. 9, east section of Jianan Avenue, Taizhou, Zhejiang Province Patentee after: Zhejiang chuantian Intelligent Technology Co.,Ltd. Address before: 318000 Chen Zhenyong village, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: Ruan Jikang |
|
| TR01 | Transfer of patent right |