CN105970506B - A kind of upper thread cutting mechanism of sewing machine - Google Patents
A kind of upper thread cutting mechanism of sewing machine Download PDFInfo
- Publication number
- CN105970506B CN105970506B CN201610397678.7A CN201610397678A CN105970506B CN 105970506 B CN105970506 B CN 105970506B CN 201610397678 A CN201610397678 A CN 201610397678A CN 105970506 B CN105970506 B CN 105970506B
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- China
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- cutting mechanism
- thread cutting
- moving knife
- sewing machine
- wirerope
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
Abstract
The present invention provides a kind of upper thread cutting mechanism of sewing machine, including be mounted on sewing machine case upper cutter head, be mounted on upper cutter head and movably upper moving knife and be mounted on power source on sewing machine case and for driving the lower thread cutting mechanism of sewing machine act, the power source is connected with upper moving knife by gear unit and moving knife is driven to move.In the application, the power source that will be used to that the power source of upper thread cutting mechanism movement to be driven to be used to drive lower thread cutting mechanism movement, upper thread cutting mechanism and lower thread cutting mechanism are driven simultaneously using a power source, and then save the power source of upper thread cutting mechanism in the prior art, to under the premise of not influencing flat seaming machine automatic shearing performance, so that the overall structure of flat seaming machine thread cutting mechanism becomes simpler, compact, flat seaming machine overall appearance is not beautiful, heavy.
Description
Technical field
The present invention relates to a kind of sewing machines, more particularly to a kind of upper thread cutting mechanism of sewing machine.
Background technique
With the rapid development of science and technology, the mechanization degree of clothes manufacture is also higher and higher, and clothes manufacturing equipment is to sew
Based on machine, sewing machine includes flat seam machine, overedger, flat seaming machine etc. again, is generally equipped with automatic needle-foot-lifting machine on various types
Structure, automatic shearing mechanism etc., to enrich the function of sewing machine.
In above-mentioned different types of machines, flat seaming machine is usually three needles, five sewer structure, and five lines refer to a foundation line, a decoration
Line and three upper threads, therefore, the automatic shearing mechanism configured on flat seaming machine includes upper thread cutting mechanism and lower thread cutting mechanism, on
Thread cutting mechanism after each sewing finishing for cutting decorative thread, and lower thread cutting mechanism is for cutting baseline after each sewing finishing
And upper thread.Thread cutting mechanism shown in FIG. 1 for sewing machine in the prior art, from fig. 1, it can be seen that upper thread cutting mechanism is by upper trimming electromagnetism
Iron 100 drives, and lower thread cutting mechanism is driven by lower trimming electromagnet 200, and upper trimming structure and upper trimming electromagnet 100 are all
It is mounted at the left cover position of flat seaming machine mechanism, therefore, overall structure is complex, and seems very heavy, not only unsightly
Convenience of the worker using stitching sewing machine cloth when is had an effect on, for example worker hauls the process of cloth forward movement in sewing
In, the hand of worker is easy to encounter upper trimming electromagnet, therefore operates very inconvenient.
Summary of the invention
That in view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of overall structures is relatively simple,
The upper thread cutting mechanism of compact sewing machine.
To achieve the above object, the present invention provides a kind of upper thread cutting mechanism of sewing machine, including is mounted on sewing machine case
On upper cutter head, be mounted on upper cutter head and movably upper moving knife and be mounted on sewing machine case and for driving seam
Thread machine the movement of lower thread cutting mechanism power source, the power source be connected and drive with upper moving knife by gear unit on it is dynamic
Knife is mobile.
Preferably, the power source is electromagnet or cylinder.
Further, the gear unit includes wirerope and movable connecting rod, and the movable connecting rod is movably linearly pacified
On the upper cutter head, one end of the wirerope is fixed on the swing rod in the lower thread cutting mechanism of sewing machine, the swing rod
It is moved linearly by power source drive, the other end of the wirerope is fixedly connected with one end of movable connecting rod, movable connecting rod
The other end is fixedly connected with the upper moving knife.
Preferably, the wirerope is movably threaded through in a wirerope housing, and one end of the wirerope housing is solid
It is scheduled on sewing machine case, the other end of wirerope housing is fixed on upper cutter head.
Further, it is fixed with guider screw on the upper cutter head, one is offered on the movable connecting rod along movable connecting rod
The connecting rod guide groove that extends of moving direction, the guider screw is threaded through in connecting rod guide groove.
Preferably, it is connected with first back-moving spring between the movable connecting rod and upper cutter head, which can edge
The moving direction of movable connecting rod is compressed axially or is axially stretched.
Further, the wirerope is connected with swing rod by an adjusting block, and the swing rod includes being connected with power source
The fixed arm connect and the loose ends crank torque arm being connected with loose ends crank in sewing machine, the loose ends crank torque arm is along swing rod
Linear movement direction extend, the adjusting block by first adjust screw be mounted in loose ends crank torque arm；The adjusting block
In offer one along swing rod linear movement direction run through adjusting block through-hole, one end of the wirerope is threaded through adjusting block
In through-hole and end of wirerope is equipped with a flange, and the diameter of the flange is greater than the diameter of through-hole, the flange and tune
Upper the first adjustment region of moving knife stroke is formed between locking nub.
Further, the movable connecting rod is fixedly connected with upper moving knife by a stop screw, the lower end of the upper cutter head
It is also connected with a limit plate, the upper end of the limit plate matches with stop screw, the downlink for limiting upper moving knife.
Preferably, the limit plate is connected with upper cutter head by the second adjusting screw, the upper end of the limit plate and limit
Upper the second adjustment region of moving knife stroke is formed between the screw of position.
Preferably, a moving knife guiding extended along the moving direction of upper moving knife is formed between the limit plate and upper cutter head
Slot, the upper moving knife are movably threaded through in moving knife guide groove.
As described above, the upper thread cutting mechanism of sewing machine of the present invention, has the advantages that
It in the application, will be used to that the power source of upper thread cutting mechanism movement to be driven to be used to drive lower thread cutting mechanism movement
Power source drives upper thread cutting mechanism and lower thread cutting mechanism using a power source simultaneously, and then saves in the prior art and cut
The power source of line mechanism, thus under the premise of not influencing flat seaming machine automatic shearing performance, so that flat seaming machine thread cutting mechanism is whole
Body structure becomes simpler, compact, and flat seaming machine overall appearance is not beautiful, heavy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of flat seaming machine in the prior art.
Fig. 2 is the structural schematic diagram of flat seaming machine in the application, which is rearview.
Fig. 3 is the connection schematic diagram of power source and swing rod in Fig. 2.
Fig. 4 is the connection schematic diagram of swing rod and adjusting block in Fig. 2.
Fig. 5 is the connection schematic diagram in Fig. 2 between upper cutter head, upper moving knife and movable connecting rod.
Component label instructions
1 sewing machine case
2 upper cutter heads
Moving knife on 3
4 power sources
5 wirerope
51 flanges
6 movable connecting rods
61 connecting rod guide grooves
7 swing rods
71 fixed arms
72 loose ends crank torque arm
8 wirerope housings
9 guider screws
10 first back-moving springs
11 adjusting blocks
111 through-holes
12 loose ends cranks
13 first adjust screw
14 the first adjustment regions of moving knife stroke
15 stop screws
16 limit plates
17 second adjust screw
The second adjustment region of moving knife stroke on 18
19 moving knife guide grooves
20 brackets
21 guiding axis
22 connecting plates
23 link blocks
24 second back-moving springs
25 first fixed blocks
26 fixed plates
27 second fixed blocks
28 spring bases
Specific 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 is understood other advantages and efficacy of the present invention easily.
It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off
The content shown is not intended to limit the invention enforceable qualifications so that those skilled in the art understands and reads, 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 in disclosed technology contents and obtain the model that can cover
In enclosing.Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, be also only
Convenient for being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in no essence
It changes under technology contents, when being also considered as the enforceable scope of the present invention.
In following embodiment, all directions are defined as follows: the length direction of sewing machine being defined as left and right directions, by sewing machine
Width direction be defined as front-rear direction, the short transverse of sewing machine is defined as up and down direction, therefore, front-rear direction simultaneously
For sewing machine when sewing cloth, the moving direction of cloth.
The application provides the upper thread cutting mechanism of a kind of sewing machine, particularly flat seaming machine, and upper thread cutting mechanism is for cutting flat-seam
Decorative thread in machine suture, flat seaming machine have lower thread cutting mechanism simultaneously, and lower thread cutting mechanism is used to cut the face in flat seaming machine suture
Line and baseline, the lower thread cutting mechanism of flat seaming machine can refer to the Chinese invention patent application No. is 201410245745.4, therefore this Shen
Please in no longer in detail narration.As shown in Fig. 2, the upper thread cutting mechanism includes being mounted in 1 left end head panel of sewing machine case
Upper cutter head 2, be mounted on upper cutter head 2 and movably upper moving knife 3 and be mounted on sewing machine case 1 and for driving
The power source 4 of the lower thread cutting mechanism movement of sewing machine, the power source 4 are connected and are driven with upper moving knife 3 by gear unit
Upper moving knife 3 is mobile.Therefore, this application involves sewing machine in thread cutting mechanism, will be used to drive the dynamic of upper thread cutting mechanism movement
The power source for driving lower thread cutting mechanism to act is selected in power source, i.e., drives upper thread cutting mechanism under simultaneously using a power source
Thread cutting mechanism, and then the power source of upper thread cutting mechanism in the prior art is saved, thus not influencing flat seaming machine automatic shearing performance
Under the premise of, so that the overall structure of flat seaming machine thread cutting mechanism becomes simpler, compact, flat seaming machine overall appearance is beautiful, no
It is heavy.
Preferably, the power source 4 can select motor, electromagnet or cylinder etc., be fixedly mounted on sewing machine case 1
On, in the present embodiment, power source 4 is preferred to select electromagnet or cylinder, therefore has not been changed in former flat seaming machine under lower thread cutting mechanism use
Under trimming solenoid actuated thread cutting mechanism act structure so that this application involves upper thread cutting mechanism can be applicable in
In original flat seaming machine, reduction is transformed required cost to original flat seaming machine.In addition, each machine of sewing machine discussed below
In the embodiment of structure, power source 4 is all made of electromagnet.
Further, the gear unit can select link mechanism or select 5 transmission mechanism of wirerope, in order to
It reduces cost and improves the aesthetics of sewing machine, the gear unit preferably uses 5 transmission mechanism of wirerope.Specifically, as schemed
Shown in 2 and Fig. 5, the gear unit includes wirerope 5 and movable connecting rod 6, and the movable connecting rod 6 is movably linearly mounted on
On the upper cutter head 2, the right end of the wirerope 5 is fixed on the swing rod 7 in the lower thread cutting mechanism of sewing machine, the swing rod 7
By solenoid actuated and moving linearly, the left end of the wirerope 5 is fixedly connected with the upper end of movable connecting rod 6 by screw,
The lower end of movable connecting rod 6 is fixedly connected with the upper moving knife 3.
The specific structure that the solenoid actuated swing rod 7 moves linearly are as follows: as shown in figure 3, electromagnet includes outside electromagnet
Shell and the electromagnet core in electromagnet casing are fixed with a branch being located above electromagnet casing on sewing machine case 1
Frame 20 is supported with a guiding axis 21 that can be moved left and right, the telescopic direction phase of guiding axis 21 and electromagnet core in the bracket 20
In parallel, and the left end of guiding axis 21 is fixedly connected with the left end of electromagnet core by a connecting plate 22；The swing rod 7 includes upper
The loose ends crank torque arm 72 that the fixed arm 71 of lower extension and left and right extend, the loose ends crank torque arm 72 is used for and sewing machine
Middle loose ends crank 12 is connected, and the lower end of the fixed arm 71 of the swing rod 7 is fixed on the right side of guiding axis 21 by a link block 23
End.Meanwhile it being connected with first back-moving spring 10 between the movable connecting rod 6 and upper cutter head 2, which can be along fortune
The moving direction of dynamic connecting rod 6 is compressed axially or is axially stretched；A spring base 28 is fixed on the guiding axis 21, the spring base 28
A set of second back-moving spring 24 on guiding axis 21 is equipped between bracket 20, which can be along guiding axis 21
Moving direction be compressed axially or be axially stretched.
When non-trimming, electromagnet is in the original state of power-off, therefore electromagnet core is in the state stretched out to the left.Trimming
When, the electronic control module of sewing machine makes electromagnet be powered, and fast retractile, electromagnet core pass through connecting plate 22 to electromagnet core to the right
Guiding axis 21 is driven synchronously to move right, guiding axis 21 drives swing rod 7 synchronously to move right, and swing rod 7 passes through wirerope 5 again
Pull movable connecting rod 6 to do straight line to the direction close to decorative thread and move down, thus movable connecting rod 6 drive upper moving knife 3 synchronously to
Lower movement, moving knife 3 cuts decorative thread in realization；Meanwhile the first back-moving spring 10 is axially compressed, the set is in guiding axis
Second back-moving spring 24 on 21 is axially compressed, therefore first back-moving spring 10 and second back-moving spring 24 are pressure spring.Trimming
After, the electronic control module of sewing machine powers off electromagnet, makes movable connecting rod 6 under the elastic force effect of first back-moving spring 10
It is resetted with wirerope 5, makes guiding axis 21, electromagnet core, swing rod 7 and steel wire under the elastic force effect of second back-moving spring 24
Rope 5 resets.In order to guarantee that movable connecting rod 6 drives upper moving knife 3 to do the stability and accuracy that move linearly, as shown in figure 5, described
It is fixed with guider screw 9 on upper cutter head 2, a company extended along the moving direction of movable connecting rod 6 is offered on the movable connecting rod 6
Bar guide groove 61, the guider screw 9 are threaded through in connecting rod guide groove 61, the width and guider screw of the connecting rod guide groove 61
9 diameter is adapted, the head of guider screw 9 as connecting rod guide groove 61 outside and diameter be greater than connecting rod guide groove 61
Width, therefore movable connecting rod 6 can be improved by the mutual cooperation of guider screw 9 and connecting rod guide groove 61, upper moving knife 3 is driven to do straight line
Mobile stability and accuracy, to improve the trimming performance of sewing machine.
In addition, in order to be effectively protected wirerope 5 and avoid interference of the other parts to wirerope 5, as shown in Fig. 2, institute
Wirerope 5 to be stated movably to be threaded through in a wirerope housing 8, the right end of wirerope housing 8 is fixed on the first fixed block 25,
First fixed block 25 is fixed by screws in a fixed plate 26, which is fixed by screws in sewing machine case 1
On, so that the right end of wirerope housing 8 is fixed on sewing machine case 1.As shown in figure 5, the left end of wirerope housing 8 is fixed
On the second fixed block 27, which is fixed by screws on the upper cutter head 2, thus by wirerope housing 8
Left end be fixed on upper cutter head 2.
Further, electromagnet needs driving time thread cutting mechanism and upper thread cutting mechanism simultaneously, but lower thread cutting mechanism and above cuts
The stroke of line mechanism is unequal, and in other words, the stroke of lower thread cutting mechanism is greater than the stroke of upper thread cutting mechanism, therefore, such as Fig. 2 institute
Show, the loose ends crank torque arm 72 of the swing rod 7 is connected with an adjusting block 11 by the first adjusting screw 13, and the adjusting block 11 is by steel
Cord 5 is connected with swing rod 7, and is also adjustable the stroke that swing rod 7 drives wirerope 5 mobile.As shown in figure 4, the adjusting block
The through-hole 111 of one or so perforation is offered in 11, the right end of the wirerope 5 is threaded through in the through-hole 111 of adjusting block 11 and steel
It is equipped with a flange 51 at the right part of cord 5, the diameter of the flange 51 is greater than the diameter of through-hole 111, therefore flange 51 cannot be from
Pass through in through-hole 111, forms upper the first adjustment region of moving knife stroke 14 between the flange 51 and adjusting block 11.Unscrew the first tune
It can adjust left-right position of the adjusting block 11 in the loose ends crank torque arm 72 of swing rod 7 after saving screw 13, and then adjust and be located at flange
The length of upper the first adjustment region of moving knife stroke 14 in the lateral direction between 51 and adjusting block 11, to adjust 7 band of swing rod
The mobile distance of dynamic wirerope 5, and then the linear movement stroke of movable connecting rod 6 and upper moving knife 3 is adjusted, this mode is generally used for stitching
Adjusting when machine of threading dispatches from the factory or the use in a wide range of adjusting upper 3 shift motion of moving knife.
Shift motion for the ease of moving knife 3 in user's adjusting or the shift motion to upper moving knife 3 carry out small-scale tune
Section, as shown in figure 5, the movable connecting rod 6 is fixedly connected with upper moving knife 3 by a stop screw 15, the lower end of the upper cutter head 2
It is also connected with a limit plate 16, the upper end of the limit plate 16 matches with stop screw 15 and (abuts each other), for limiting
Upper moving knife 3 continues traveling downwardly；The limit plate 16 is connected with upper cutter head 2 by the second adjusting screw 17, the limit plate 16
Upper end and stop screw 15 between form upper the second adjustment region of moving knife stroke 18.It can adjust after unscrewing the second adjusting screw 17
Position of the limiting section on upper cutter head 2, and then upper the second adjustment region of moving knife stroke 18 is adjusted on upper 3 moving direction of moving knife
Length, so as to adjust the linear movement stroke of upper moving knife 3.
Preferably, one is formed between the limit plate 16 and upper cutter head 2 to lead along the moving knife that the moving direction of upper moving knife 3 extends
To slot 19, the upper moving knife 3 is movably threaded through in moving knife guide groove 19, is further ensured that moving knife 3 moves linearly steady
It is qualitative.
In conclusion the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (9)
1. a kind of upper thread cutting mechanism of sewing machine, including be mounted on sewing machine case (1) upper cutter head (2), be mounted on upper slitter
On seat (2) and movably goes up moving knife (3) and be mounted on the lower trimming on sewing machine case (1) and for driving sewing machine
The power source (4) of mechanism action, it is characterised in that: the power source (4) is connected, simultaneously by gear unit with upper moving knife (3)
Moving knife (3) is mobile in driving；The gear unit includes wirerope (5) and movable connecting rod (6), and the movable connecting rod (6) can be straight
Line removably mounts on the upper cutter head (2), and one end of the wirerope (5) is fixed in the lower thread cutting mechanism of sewing machine
On swing rod (7), the swing rod (7) is moved linearly by power source (4) driving, and the other end of the wirerope (5) and movement connect
One end of bar (6) is fixedly connected, and the other end of movable connecting rod (6) is fixedly connected with the upper moving knife (3).
2. upper thread cutting mechanism according to claim 1, it is characterised in that: the power source (4) is electromagnet or cylinder.
3. upper thread cutting mechanism according to claim 1, it is characterised in that: the wirerope (5) is movably threaded through one
In wirerope housing (8), one end of the wirerope housing (8) is fixed on sewing machine case (1), wirerope housing (8)
The other end is fixed on upper cutter head (2).
4. upper thread cutting mechanism according to claim 1, it is characterised in that: be fixed with guider screw on the upper cutter head (2)
(9), a connecting rod guide groove (61) extended along the moving direction of movable connecting rod (6) is offered on the movable connecting rod (6), it is described
Guider screw (9) is threaded through in connecting rod guide groove (61).
5. upper thread cutting mechanism according to claim 1, it is characterised in that: between the movable connecting rod (6) and upper cutter head (2)
Be connected with first back-moving spring (10), the first back-moving spring (10) can be compressed axially along the moving direction of movable connecting rod (6) or
Axial tension.
6. upper thread cutting mechanism according to claim 1, it is characterised in that: the wirerope (5) and swing rod (7) are adjusted by one
Locking nub (11) is connected, the swing rod (7) include the fixed arm (71) being connected with power source (4) and with it is loose in sewing machine
The loose ends crank torque arm (72) that line crank (12) is connected, linear movement side of the loose ends crank torque arm (72) along swing rod (7)
To extension, the adjusting block (11) adjusts screw (13) by first and is mounted in loose ends crank torque arm (72)；The adjusting block
(11) through-hole (111) for running through adjusting block (11) along the linear movement direction of swing rod (7), the wirerope (5) are offered in
One end be threaded through in the through-hole (111) of adjusting block (11) and the end of wirerope (5) be equipped with a flange (51), it is described
The diameter of flange (51) is greater than the diameter of through-hole (111), and upper moving knife stroke is formed between the flange (51) and adjusting block (11)
First adjustment region (14).
7. upper thread cutting mechanism according to claim 1, it is characterised in that: the movable connecting rod (6) passes through with upper moving knife (3)
One stop screw (15) is fixedly connected, and the lower end of the upper cutter head (2) is also connected with a limit plate (16), the limit plate (16)
Upper end matched with stop screw (15), the downlink for limiting upper moving knife (3).
8. upper thread cutting mechanism according to claim 7, it is characterised in that: the limit plate (16) passes through with upper cutter head (2)
Second, which adjusts screw (17), is connected, and is formed between the upper end and stop screw (15) of the limit plate (16) and goes up moving knife stroke the
Two adjustment regions (18).
9. upper thread cutting mechanism according to claim 7, it is characterised in that: between the limit plate (16) and upper cutter head (2)
A moving knife guide groove (19) extended along the moving direction of upper moving knife (3) is formed, the upper moving knife (3) is movably threaded through dynamic
In knife guide groove (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397678.7A CN105970506B (en) | 2016-06-07 | 2016-06-07 | A kind of upper thread cutting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397678.7A CN105970506B (en) | 2016-06-07 | 2016-06-07 | A kind of upper thread cutting mechanism of sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN105970506A CN105970506A (en) | 2016-09-28 |
| CN105970506B true CN105970506B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610397678.7A Active CN105970506B (en) | 2016-06-07 | 2016-06-07 | A kind of upper thread cutting mechanism of sewing machine |
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| CN (1) | CN105970506B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109930312B (en) * | 2017-12-16 | 2021-06-01 | 杰克缝纫机股份有限公司 | Lower trimming mechanism directly driven by cylinder |
| CN107893290A (en) * | 2017-12-28 | 2018-04-10 | 杰克缝纫机股份有限公司 | A kind of thread cutting mechanism and sewing machine |
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| CN105420948A (en) * | 2015-12-29 | 2016-03-23 | 杰克缝纫机股份有限公司 | Thread trimming mechanism driving device for sewing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008212443A (en) * | 2007-03-06 | 2008-09-18 | Brother Ind Ltd | Sewing machine |
| CN202865569U (en) * | 2012-08-11 | 2013-04-10 | 新杰克缝纫机股份有限公司 | Electromagnet trimming mechanism of overlock machine |
| CN203411771U (en) * | 2013-08-27 | 2014-01-29 | 中捷缝纫机股份有限公司 | Trimming driving device of sewing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105970506A (en) | 2016-09-28 |
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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. |