CN104894758B - Automatic sewing machine presser foot strength regulating and controlling device - Google Patents
Automatic sewing machine presser foot strength regulating and controlling device Download PDFInfo
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- CN104894758B CN104894758B CN201510364453.7A CN201510364453A CN104894758B CN 104894758 B CN104894758 B CN 104894758B CN 201510364453 A CN201510364453 A CN 201510364453A CN 104894758 B CN104894758 B CN 104894758B
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- pressure regulation
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- pressure regulating
- guide rod
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Abstract
The invention provides an automatic sewing machine presser foot strength regulating and controlling device which comprises a machine head, a pressing rod, a presser foot, an operating panel, a pressure regulating motor controller, a pressure regulating motor, a pressure regulating guide rod, a cam and a pressure regulating spring arranged on the pressure regulating guide rod in a sleeving mode. The pressure regulating motor is connected with the pressure regulating motor controller, and the pressure regulating motor controller is connected with the operating panel. The pressure regulating motor is connected with the cam through a drive mechanism, a contact portion in contact with the peripheral face of the cam is arranged at the upper end of the pressure regulating guide rod, a flange portion located under the contact portion is further arranged on the pressure regulating guide rod, a guide hole is formed in the upper end of the pressing rod, the lower end of the pressure regulating guide rod is located in the guide rod, and the pressure regulating spring is located between the flange portion and the pressing rod. The automatic sewing machine presser foot strength regulating and controlling device sets presser foot strength through the operating panel, then increases or decreases the pressure on a fabric of the presser foot under the joint effects of the pressure regulating motor, the drive mechanism, the pressure regulating spring and the pressure regulating guide rod, accordingly achieve automatic presser foot strength regulation and is high in regulation accuracy and good in stability.
Description
Technical field
The present invention relates to a kind of sewing machine, more particularly to a kind of sewing-machine foot dynamics automatic adjusting control device.
Background technology
Sewing machine is to use one or more sewing thread, and one or more stitching is formed on fabric, makes one or more layers face
The machine that material interweaves or unites by a seam.Sewing machine is mainly made up of head, support, drive mechanism and the part of adnexa four；Wherein, machine
Head is the major part of sewing machine, including needle bar mechanism, hook line mechanism, Yarn taking-up mechanism, feed mechanism, winding mechanism, swager
Structure and Luo Ya mechanisms etc., the motion reasonable coordination of each mechanism circulates work, so as to cloth be sutured.Feeding pressure mechanism is mainly
Cloth is pressed on feed dog by presser feet, moves cloth during to sew, so as to ensure that sewing machine needle falls cloth at pin
The flatness and stability of material.In feeding, presser feet is pressed on cloth sewing machine；, when blowing is fed, needing will pressure for sewing machine
Foot is lifted up.In addition, for the cloth of different-thickness, presser feet would also vary to the pressure of cloth：When cloth is relatively thin,
Then presser feet dynamics is relatively small；When cloth is thickening, then presser feet dynamics is correspondingly increased, otherwise be likely to occur with motionless
Cloth, the stitching phenomenon such as unsightly, therefore, the cloth for sewing different-thickness is required for being adjusted presser feet dynamics.
At present, mainly using manually adjusting, it is by being located above sewing machine case for the regulation of presser feet dynamics
Look nut is adjusted, and has scale to point out on look nut, although it has scale to point out, still to operator's
Technical requirements are higher, and it is actually used during need for the experience according to operator to complete, therefore specifically used
During very inconvenience, the degree of regulation of presser feet dynamics is also high, and stability in use is poor.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of degree of regulation is high, stability
Good sewing-machine foot dynamics automatic adjusting control device.
A kind of for achieving the above object, sewing-machine foot dynamics automatic adjusting control device of present invention offer, including head,
The guidance panel of compressor arm, the presser feet for being installed in compressor arm lower end and sewing machine, the upper end of the compressor arm is located at head
In, also including pressure regulation electric machine controller, the pressure regulation motor being installed on head, the pressure regulation guide rod in head and rotatable
Cam and the pressure spring being enclosed within pressure regulation guide rod, the pressure regulation motor is connected with pressure regulation electric machine controller, the pressure regulation
Electric machine controller is connected with guidance panel；The pressure regulation motor is connected by drive mechanism with cam, the pressure regulation guide rod
Upper end be provided with the contact site and pressure regulation guide rod contacted with peripheral cam surface be additionally provided with one be located at contact site below flange
Portion, the upper end of the compressor arm offers a pilot hole, and the lower end of the pressure regulation guide rod is located in pilot hole, the pressure spring
Between flange part and compressor arm.
Preferably, also including two motor fixing frames being oppositely arranged, the motor fixing frame includes that what is be vertically arranged props up
Fagging and horizontally disposed installing plate, the installing plate is fixedly connected with head, the pressure regulation motor be positioned on installing plate and
It is fixedly connected with gripper shoe.
Further, the drive mechanism is a reduction gearing mechanism, including intermeshing first gear and the second tooth
Wheel, intermeshing 3rd gear and the 4th gear, the first synchronizing wheel, the second synchronizing wheel, conveyer belt, first rotating shaft, second turn
Axle and the 3rd rotating shaft, the first rotating shaft and the second rotating shaft are rotationally located in the gripper shoe of two motor fixing frames,
3rd rotating shaft is rotationally located in head, and the first gear is fixed on the output shaft of pressure regulation motor, second tooth
Wheel and the 3rd gear are fixed in first rotating shaft, and the 4th gear and the first synchronizing wheel are fixed in the second rotating shaft, and described the
One synchronizing wheel is setting up and down with the second synchronizing wheel and is connected by conveyer belt, and second synchronizing wheel and cam are fixed on
In three rotating shafts.
Preferably, first synchronizing wheel and the second synchronizing wheel are the synchronous pulley for being provided with the periphery flank of tooth, the transmission
The inner surface of band is inner toothed surface, and the inner toothed surface is meshed with the periphery flank of tooth of synchronous pulley.
Preferably, the outer surface of the contact site is a smooth hemisphere face.
Further, also include the sewing machine master controller being connected with guidance panel, the sewing machine master controller and
All fixation is located in an electric cabinet pressure regulation electric machine controller and sewing machine master controller and pressure regulation electric machine controller are arranged side by side.
Further, also include the sewing machine master controller being connected with guidance panel, the sewing machine master controller and
Pressure regulation electric machine controller is integrated on one piece of circuit board and the circuit board is fixed in an electric cabinet.
As described above, sewing-machine foot dynamics automatic adjusting control device according to the present invention, has the advantages that：
The application by guidance panel arrange presser feet dynamics, afterwards again by pressure regulation motor, drive mechanism, pressure spring and
The collective effect of pressure regulation guide rod makes the downward pressure of compressor arm increase or reduce, so make presser feet increase the pressure of cloth or
Person reduces, so as to realize automatically adjusting for presser feet dynamics, and degree of regulation height, good stability, so as to avoid because of operative employee's staff
Dynamic degree of regulation it is not high or adjust it is inaccurate and produce stitching unsightly, with phenomenons such as motionless clothes, substantially increase work
Efficiency, it is ensured that the quality of sewing finished product.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is A circles enlarged drawing in Fig. 3.
Fig. 5 is the structural representation of drive mechanism in the present invention.
Fig. 6 is the front view of Fig. 5.
Fig. 7 is the top view of Fig. 5.
Fig. 8 is the left view of Fig. 5.
Fig. 9 is the catenation principle figure of the present invention.
Component label instructions
1 head
2 compressor arms
3 presser feets
4 pressure regulation motors
5 pressure regulation guide rods
501 contact sites
502 flange parts
6 cams
7 pressure springs
8 drive mechanisms
801 first gears
802 second gears
803 the 3rd gears
804 the 4th gears
805 first synchronizing wheels
806 second synchronizing wheels
807 conveyer belts
808 first rotating shafts
809 second rotating shafts
810 the 3rd rotating shafts
9 motor fixing frames
901 gripper shoes
902 installing plates
Specific embodiment
Hereinafter embodiments of the present invention are illustrated by particular specific embodiment, those skilled in the art can be by this explanation
Content disclosed by book understands easily other advantages and effect of the present invention.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to coordinate description to be taken off
The content shown, so that those skilled in the art understands and reads, is not limited to enforceable qualificationss of the 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 affecting the present invention
Under the effect that can be generated and the purpose to be reached, all should still fall obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile, in this specification it is cited such as " on ", D score, "left", "right", the term of " centre " and " ", be also only
It is easy to what is described to understand, and is not used to limit enforceable scope of the invention, its relativeness is altered or modified, without essence
Under change technology contents, when being also considered as enforceable category of the invention.
The present invention relates to a kind of sewing-machine foot dynamics automatic adjusting control device, as depicted in figs. 1 and 2, including head
1st, compressor arm 2, be installed in the presser feet 3 of the lower end of compressor arm 2 and the guidance panel of sewing machine, the guidance panel is installed in seam
Thread on the outer surface of machine casing, the upper end of the compressor arm 2 is located in head 1.Further, as shown in Fig. 1 to Fig. 5, Fig. 9,
Also include pressure regulation electric machine controller, the pressure regulation motor 4 being installed on head 1, the pressure regulation guide rod 5 in head 1 and rotatable
Cam 6 and the pressure spring 7 that is enclosed within pressure regulation guide rod 5, the pressure regulation motor 4 is connected with pressure regulation electric machine controller, institute
State pressure regulation electric machine controller to be connected with guidance panel；The pressure regulation motor 4 is connected by drive mechanism 8 with cam 6, described
The upper end of pressure regulation guide rod 5 be provided with the contact site 501 and pressure regulation guide rod 5 contacted with the outer peripheral face of cam 6 be additionally provided with one be located at connect
The flange part 502 of the lower section of contact portion 501, the upper end of the compressor arm 2 offers a pilot hole for vertically extending, the pressure regulation guide rod
5 lower end is located in pilot hole, and the pressure spring 7 is located between flange part 502 and compressor arm 2.
Because sewing machine inner space is very limited, and make the outward appearance of sewing machine more attractive in appearance, in the application, the pressure regulation electricity
Machine 4 is installed on the top surface of head 1, and the pressure regulation guide rod 5 and cam 6 are vertically located in head 1, so as to reduce it
Taking up room inside sewing machine, makes overall structure sufficiently be optimized.In the application, the pressure regulation motor 4 is by passing
Motivation structure 8 is rotated with moving cam 6, and when cam 6 is in different corners, its pressure to pressure spring 7 is also differed, therefore can
The pressure of pressure spring 7 is adjusted by the rotation of pressure regulation motor 4；When the pressure of pressure spring 7 is larger, 7 pairs of pressures of pressure spring
The pressure of tight bar 2 is also larger, can promote the dynamics increase that compressor arm 2 and presser feet 3 are downward, to increase pressure of the presser feet 3 to cloth；
When the pressure of pressure spring 7 is less, pressure spring 7 is also less to the pressure of compressor arm 2, and compressor arm 2 and presser feet 3 can be promoted downward
Dynamics reduce, to reduce pressure of the presser feet 3 to cloth.Prestore inside micro-control unit MCU on the guidance panel
There is conversion pressure table, for the pressure value of presser feet 3 to be converted into grade foot pressure correspondence one of the rotational angle of pressure regulation motor 4, i.e., 1
The rotational angle of individual pressure regulation motor 4, the rotational angle of the different pressure regulation motor 4 of different foot pressure correspondences.Preferably, it is described
Display screen can be set on guidance panel, for showing the size of set foot pressure, more accurately set in order to operator
Determine foot pressure.
In above-described embodiment, the guidance panel is directly connected to by serial ports with pressure regulation electric machine controller, now, is led to
Cross the device and realize that the concrete grammar of presser feet dynamics regulation is：1st, presser feet pressure regulation instruction is input into by guidance panel；2nd, operating surface
Presser feet pressure regulation instruction is sent to pressure regulation electric machine controller by plate by serial ports；3rd, pressure regulation electric machine controller receives presser feet by serial ports
Pressure regulation is instructed, and is controlled pressure regulation motor 4 and rotated corresponding angle；4th, pressure regulation motor 4 is rotated by drive mechanism 8 with moving cam 6
Corresponding angle, to adjust the pressure of pressure spring 7；5th, pressure spring 7 changes the downward dynamics of compressor arm 2 and presser feet 3, finally
Realize automatically adjusting for presser feet dynamics.So, in actual mechanical process, when sewing thickness changes, only need to be in operation
Foot pressure value is set on panel and is capable of achieving automatically adjusting for presser feet dynamics, it is not necessary to operative employee's manual rotation pressure regulating screw,
Its simple to operate, stability is high, degree of regulation is high, so as to reduce because operative employee's manual rotation pressure regulating screw spent when
Between, and also reduce the stitching produced because the manual degree of regulation of operative employee is not high or inaccurate unsightly, with motionless cloth etc.
Phenomenon, finally substantially increases work efficiency, reduces the operating experience to operative employee and requires, it is ensured that sewing efficiency and into quality
Amount.
Preferably, Fig. 1 and Fig. 8 is seen, also including two motor fixing frames 9 being oppositely arranged, the motor fixing frame 9 includes
The gripper shoe 901 being vertically arranged and horizontally disposed installing plate 902 and motor fixing frame 9 are structure as a whole, the installing plate
902 are fixedly connected with head 1, and the pressure regulation motor 4 is positioned on installing plate 902 and is consolidated by multiple screws and gripper shoe 901
Fixed connection.
Further, the drive mechanism 8 is a reduction gearing mechanism, and as shown in Fig. 5 to Fig. 8, the drive mechanism 8 is wrapped
Include intermeshing first gear 801 and second gear 802, intermeshing 3rd gear 803 and the 4th gear 804, first
Synchronizing wheel 805, the second synchronizing wheel 806, conveyer belt 807, first rotating shaft 808, the second rotating shaft 809 and the 3rd rotating shaft 810, described
One rotating shaft 808 and the second rotating shaft 809 are rotationally located in the gripper shoe 901 of two motor fixing frames 9, the 3rd rotating shaft
810 are rotationally located in head 1, and the first gear 801 is fixed on the output shaft of pressure regulation motor 4, second tooth
The gear 803 of wheel 802 and the 3rd is fixed in first rotating shaft 808, and the 4th gear 804 and the first synchronizing wheel 805 are fixed on the
In two rotating shafts 809, first synchronizing wheel 805 is setting up and down with the second synchronizing wheel 806 and is connected by conveyer belt 807, institute
State the second synchronizing wheel 806 and cam 6 is fixed in the 3rd rotating shaft 810.Pressure regulation motor 4 is rotated, and drives first gear 801 and second
Gear 802 is rotated, second gear 802 and the synchronous axial system of the 3rd gear 803, drives the 4th gear 804 to rotate；4th gear 804
With the synchronous axial system of the first synchronizing wheel 805, the synchronous axial system of the second synchronizing wheel 806, final band moving cam 6 are driven by conveyer belt 807
Synchronous axial system.Therefore, the drive mechanism 8 in the application may also operate as the work for slowing down in addition to rotating for band moving cam 6
With.
Further, the synchronizing wheel 806 of first synchronizing wheel 805 and second is the synchronous pulley for being provided with the periphery flank of tooth,
The inner surface of the conveyer belt 807 is inner toothed surface, and the inner toothed surface is meshed with the periphery flank of tooth of synchronous pulley, and the is increased with this
Frictional force between one synchronizing wheel 805 and conveyer belt 807, between the second synchronizing wheel 806 and conveyer belt 807, prevents from skidding, so as to
Ensure the accuracy of transmission.
Preferably, the outer surface of the contact site 501 be a smooth hemisphere face, when pressure regulation guide rod 5 contact site 501 with it is convex
It is between the two a contact when outer peripheral face of wheel 6 contacts, frictional force is very little, so as to extend the service life of the device.
Further, in the application, also including sewing machine master controller, the sewing machine master controller is also by serial ports and behaviour
It is connected as panel, the sewing machine master controller is installed in electric cabinet, and the electric cabinet is installed in the afterbody of casing.The tune
Piezoelectricity machine controller is provided with two ways；Mode one, pressure regulation electric machine controller and sewing machine master controller be two pieces side by side
The circuit board of setting, and sewing machine master controller and pressure regulation electric machine controller all fixation be located in electric cabinet, pressure regulation motor control
Device is connected by wiring with pressure regulation motor 4, to realize exchanging the control of Medium-voltage Motor 4；Mode two, pressure regulation electric machine controller and seam
Owner's controller of threading is integrated on one piece of circuit board and the circuit board is fixed in electric cabinet, and pressure regulation electric machine controller is by connecing
Line is connected with pressure regulation motor 4, to realize exchanging the control of Medium-voltage Motor 4.In addition, the optional motor of the pressure regulation motor 4, with
The control accuracy of motor rotational angle is improved, the accuracy and precision that presser feet dynamics is automatically adjusted is improved.
In sum, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The principle and its effect of above-described embodiment only illustrative present invention, it is of the invention not for limiting.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and the scope without prejudice to the present invention to above-described embodiment.Cause
This, such as those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (7)
1. a kind of sewing-machine foot dynamics automatic adjusting control device, including head (1), compressor arm (2), compressor arm is installed in
(2) presser feet (3) and the guidance panel of sewing machine of lower end, the upper end of the compressor arm (2) is located in head (1), its feature
It is：Also include that pressure regulation electric machine controller, the pressure regulation motor (4) being installed on head (1), the pressure regulation in head (1) are led
Bar (5) and rotatable cam (6) and the pressure spring (7) being enclosed within pressure regulation guide rod (5), the pressure regulation motor (4) and tune
Piezoelectricity machine controller is connected, and the pressure regulation electric machine controller is connected with guidance panel；The pressure regulation motor (4) is by transmission
Mechanism (8) is connected with cam (6), and the upper end of the pressure regulation guide rod (5) is provided with the contact site contacted with cam (6) outer peripheral face
(501) flange part (502) being located at below contact site (501) and on pressure regulation guide rod (5) is additionally provided with, the compressor arm (2)
Upper end offers a pilot hole, and the lower end of the pressure regulation guide rod (5) is located in pilot hole, and the pressure spring (7) is positioned at flange
Between portion (502) and compressor arm (2).
2. sewing-machine foot dynamics automatic adjusting control device according to claim 1, it is characterised in that：Also include two
The motor fixing frame (9) being oppositely arranged, the motor fixing frame (9) is including the gripper shoe (901) being vertically arranged and is horizontally disposed with
Installing plate (902), the installing plate (902) is fixedly connected with head (1), and the pressure regulation motor (4) is positioned over installing plate
(902) it is fixedly connected on and with gripper shoe (901).
3. sewing-machine foot dynamics automatic adjusting control device according to claim 2, it is characterised in that：The driver
Structure (8) is a reduction gearing mechanism, including intermeshing first gear (801) and second gear (802), intermeshing
Three gears (803) and the 4th gear (804), the first synchronizing wheel (805), the second synchronizing wheel (806), conveyer belt (807), first turn
Axle (808), the second rotating shaft (809) and the 3rd rotating shaft (810), the first rotating shaft (808) and the second rotating shaft (809) it is rotatable
Be located in the gripper shoe (901) of two motor fixing frames (9), the 3rd rotating shaft (810) is rotationally located in head (1)
In, the first gear (801) is fixed on the output shaft of pressure regulation motor (4), the second gear (802) and the 3rd gear
(803) it is fixed in first rotating shaft (808), the 4th gear (804) and the first synchronizing wheel (805) are fixed on the second rotating shaft
(809) on, first synchronizing wheel (805) is setting up and down with the second synchronizing wheel (806) and is connected by conveyer belt (807),
Second synchronizing wheel (806) and cam (6) are fixed in the 3rd rotating shaft (810).
4. sewing-machine foot dynamics automatic adjusting control device according to claim 3, it is characterised in that：Described first is same
Step wheel (805) and the second synchronizing wheel (806) are the synchronous pulley for being provided with the periphery flank of tooth, the inner surface of the conveyer belt (807)
For inner toothed surface, the inner toothed surface is meshed with the periphery flank of tooth of synchronous pulley.
5. sewing-machine foot dynamics automatic adjusting control device according to claim 1, it is characterised in that：The contact site
(501) outer surface is a smooth hemisphere face.
6. sewing-machine foot dynamics automatic adjusting control device according to claim 1, it is characterised in that：Also include and behaviour
As the sewing machine master controller that panel is connected, it is electric that all fixations of the sewing machine master controller and pressure regulation electric machine controller are located at one
Control in case and sewing machine master controller and pressure regulation electric machine controller are arranged side by side.
7. sewing-machine foot dynamics automatic adjusting control device according to claim 1, it is characterised in that：Also include and behaviour
As the sewing machine master controller that panel is connected, the sewing machine master controller and pressure regulation electric machine controller are integrated in one piece of circuit
On plate and the circuit board is fixed in an electric cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510364453.7A CN104894758B (en) | 2015-06-24 | 2015-06-24 | Automatic sewing machine presser foot strength regulating and controlling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510364453.7A CN104894758B (en) | 2015-06-24 | 2015-06-24 | Automatic sewing machine presser foot strength regulating and controlling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104894758A CN104894758A (en) | 2015-09-09 |
| CN104894758B true CN104894758B (en) | 2017-04-19 |
Family
ID=54027694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510364453.7A Active CN104894758B (en) | 2015-06-24 | 2015-06-24 | Automatic sewing machine presser foot strength regulating and controlling device |
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| CN (1) | CN104894758B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193386B (en) | 2018-04-09 | 2023-12-15 | 浙江鸿立缝制设备有限公司 | Pressure regulating mechanism for lifting presser foot of sewing machine |
| CN109322068B (en) * | 2018-11-27 | 2021-04-27 | 杰克缝纫机股份有限公司 | Sewing machine presser foot mechanism and sewing machine |
| CN109629125B (en) * | 2018-12-22 | 2022-03-25 | 杰克科技股份有限公司 | Presser foot pressure and tooth rack inclination angle synchronous adjustment method based on overedger |
| CN111286874B (en) * | 2020-04-10 | 2021-10-22 | 杰克缝纫机股份有限公司 | Automatic formula presser foot pressure adjusting device and sewing machine |
| CN111472106A (en) * | 2020-05-29 | 2020-07-31 | 安徽杰羽制鞋机械科技有限公司 | Automatic presser foot lifting and adjusting mechanism of sewing machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06238078A (en) * | 1993-02-22 | 1994-08-30 | Brother Ind Ltd | Sewing machine |
| CN101514514B (en) * | 2008-02-21 | 2013-02-06 | 曾贤长 | Pressure adjustment structure of presser foot of sewing machine |
| CN102182017B (en) * | 2011-05-04 | 2013-09-25 | 张章生 | Middle presser foot mechanism of sewing machine |
| CN202107875U (en) * | 2011-05-04 | 2012-01-11 | 张章生 | Middle foot pressing mechanism of sewing machine |
| CN202107876U (en) * | 2011-05-25 | 2012-01-11 | 浙江万维机械有限公司 | Tuning type pressure foot pressure adjustment device |
| CN202152404U (en) * | 2011-05-26 | 2012-02-29 | 刘力玮 | Automatic adjustment device for pressure for presser foot of sewing machine |
| CN204753070U (en) * | 2015-06-24 | 2015-11-11 | 杰克缝纫机股份有限公司 | Presser foot dynamics automatically regulated controlling means |
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2015
- 2015-06-24 CN CN201510364453.7A patent/CN104894758B/en active Active
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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. |