CN209428707U - The height adjustment mechanism of cloth-feeding teeth of sewing machine - Google Patents
The height adjustment mechanism of cloth-feeding teeth of sewing machine Download PDFInfo
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- CN209428707U CN209428707U CN201822250420.1U CN201822250420U CN209428707U CN 209428707 U CN209428707 U CN 209428707U CN 201822250420 U CN201822250420 U CN 201822250420U CN 209428707 U CN209428707 U CN 209428707U
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- cloth
- slot
- link block
- motion bracket
- sliding
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Abstract
The utility model relates to a kind of height adjustment mechanisms of cloth-feeding teeth of sewing machine, due to being equipped with link block 3 in the link slot on motion bracket 4, the first rotational pin 6 is connected on motion bracket 4, bias is connected with the first sliding block 7 on first rotational pin 6, first sliding block 7 is stuck in the first sliding groove 8 of link block, and link block 3 and motion bracket 4 are fixed together by the fixing bolt in kidney slot on motion bracket；In this way, first the fixing bolt in the kidney slot is unclamped when needing to adjust the height and position of feed dog；Then it rotates first rotational pin and moves link slot of the link block described in the first slider-actuated on motion bracket, to adjusting feed dog frame to set height position；The bolt in the kidney slot is tightened in the case where the set height position in holding feed dog frame again and fixes link block and motion bracket.
Description
Technical field
The utility model relates to a kind of height adjustment mechanisms of cloth-feeding teeth of sewing machine, belong to sewing machine manufacturing technology field.
Background technique
Currently, sewing industry flat seam machine realizes that cloth in the movement of needle plate upper surface, is sent by the movement of feed dog frame
The tooth of cloth retainer exposes from the upper surface of needle plate and withstands on the lower surface of cloth, and feed dog frame moves and pushes cloth along needle
Plate upper surface is mobile, exposes needle plate upper level according to tooth and is adapted to different sewing operating conditions；When user sews difference
When thickness and the fabric of material, it is often necessary to adjust angle (i.e. the adjustment feeding timing and tooth height of retainer seat and feed lifting fork
Degree).Flat seam machine is broadly divided into thin material and thick material type, and one of thickness material and thin material type main difference point are exactly the tooth of feed dog frame
Tooth exposes needle plate height difference, and the feed dog frame tooth of thickness material type is higher by needle plate face height and is higher than thin material type, for thickness
Expect type, compression of the feed dog frame on cloth doubles, and can provide stronger work feed ability.
When feed dog frame in the prior art needs to adjust height, for different sewing fabrics is switched, user needs to adjust
Multiple mechanical structure parts are saved, adjustment process is often more complicated, time-consuming more long.
Utility model content
In view of the foregoing deficiencies of prior art, the purpose of this utility model is to provide a kind of cloth-feeding teeth of sewing machine
Height adjustment mechanism can be conveniently adjusted the height of feed dog, and structure is simple, easy to use.
To achieve the above object, the utility model provides a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine, using as follows
Technical solution: a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine, including feed dog frame, link block and motion bracket, it is described to send
Cloth retainer is connected on link block, and the link block is mounted on motion bracket；The motion bracket by cloth feeding mechanism drive and
Link block and feed dog frame is driven to move to transmit cloth together；
The first rotational pin is connected on the motion bracket, bias is connected with the first sliding block, the company on the first rotational pin
Block is connect equipped with first sliding groove, first sliding block is stuck in first sliding groove, and the first rotational pin rotation is able to drive first
Link block described in slider-actuated is mobile；
It is additionally provided with the kidney slot extended up and down on the motion bracket, is equipped with dismountable fixing bolt, institute in kidney slot
Link block is stated equipped with threaded hole, fixing bolt passes through kidney slot and is tightened in the threaded hole of link block.
Preferably, the first sliding groove is horizontally extending, and the first sliding block is cylindrical.
Preferably, the motion bracket is equipped with link slot, and the link block is mounted in link slot；The link slot tool
There is the opposite first side and second side for being arranged in parallel and extending up and down；The link block has to be slidably matched with first side
First end face, and the second end face being slidably matched with second side.
Preferably, it is set on the motion bracket there are two the kidney slot, sets that there are two the screw threads on the link block
Hole is equipped with the fixing bolt in each kidney slot.
Preferably, the motion bracket is equipped with a connecting hole, and the first rotational pin pivot joint is in the connecting hole；Institute
The end face for stating the first rotational pin is equipped with linear type card slot.
Preferably, the cloth feeding mechanism includes retainer seat and feed lifting fork, and retainer seat is driven by cloth pushing shaft and rotated, feed lifting fork
It is driven by feed lifting rock shaft and is rotated；One end of motion bracket and retainer seat are articulated and connected, and the other end of motion bracket is hinged with second
Sliding block, feed lifting fork are equipped with second sliding slot, and second sliding block is slidably connected in second sliding slot.
It is further preferable that second sliding block has the sliding surface with the cooperation of second sliding slot two sides respectively.
Preferably, the feed dog frame is fixed on the top of link block by screw.
Preferably, needle plate is equipped with above the feed dog frame, needle plate is equipped with slot, the feed dog at the top of feed dog frame from
Expose in slot.
Correspondingly with the height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model a kind of, a kind of sewing machine is also provided to send
The application method of the height adjustment mechanism of cloth tooth utilizes sewing described in above-mentioned technical proposal or its any preferred technical solution
The height adjustment mechanism of machine feed dog carries out operation,
1) fixing bolt in the kidney slot is unclamped；
2) it rotates first rotational pin and moves link block described in the first slider-actuated along link slot, thus by work feed
Retainer is adjusted to set height position；
3) feed dog frame is kept to tighten in the set height position and by the bolt in the kidney slot.
As described above, the utility model relates to a kind of cloth-feeding teeth of sewing machine height adjustment mechanism, have it is beneficial below
Effect: in a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model, due in the link slot on motion bracket
Link block is installed, the first rotational pin is connected on motion bracket, bias is connected with the first sliding block on the first rotational pin, and first is sliding
Block is stuck in the first sliding groove of link block, and the fixing bolt in kidney slot on motion bracket fixes link block and motion bracket
Together；In this way, first the fixing bolt in the kidney slot is unclamped when needing to adjust the height and position of feed dog；Then
It rotates first rotational pin and keeps link block described in the first slider-actuated mobile, to adjusting feed dog frame to setting height
Position；The bolt in the kidney slot is tightened in the case where the set height position in holding feed dog frame again and will be connected
It connects block and motion bracket is fixed.It can be seen that the purpose of this utility model is to provide a kind of height of cloth-feeding teeth of sewing machine
Regulating mechanism is spent, the height of feed dog can be conveniently adjusted, structure is simple, easy to use.
Detailed description of the invention
Fig. 1 is shown as a kind of schematic perspective view of the height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model.
Fig. 2 is shown as a kind of perspective view of the explosion of the height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model, needle plate
It does not show.
Fig. 3 is shown as the schematic diagram of the height adjustment mechanism for the cloth-feeding teeth of sewing machine that the direction arrow F is observed along Fig. 1, needle
Plate is not shown.
Fig. 4 is shown as the perspective view of the explosion of motion bracket, link block, feed dog frame and its connector.
Fig. 5 is shown as the schematic perspective view of motion bracket.
Fig. 6 is shown as the schematic perspective view of link block.
Fig. 7 is shown as the structural schematic diagram of the first rotational pin and the first sliding block.
Component label instructions
1 feed dog frame
2 feed dogs
3 link blocks
4 motion brackets
5 link slots
6 first rotational pins
7 first sliding blocks
8 first sliding grooves
9 kidney slots
10 fixing bolts
11 threaded holes
12 first sides
13 second sides
14 first end faces
15 second end faces
16 connecting holes
17 linear type card slots
18 retainer seats
19 feed lifting forks
20 cloth pushing shafts
21 feed lifting rock shafts
22 second sliding blocks
23 second sliding slots
24 needle plates
25 slots
26 screws
27 connecting pins
28 circlips
29 sliding surfaces
30 second rotational pins
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model 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 utility model enforceable restriction item so that those skilled in the art understands and reads
Part, 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
Under the effect of the utility model can be generated and the purpose that can reach, should all still it fall in the revealed technology of the utility model
In the range of Rong get Neng is covered.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Deng term, be merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
As shown in Figures 1 to 4, the utility model provides a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine, including work feed
Retainer 1, link block 3 and motion bracket 4, the feed dog frame 1 are connected on link block 3, and the link block 3 is mounted on movement branch
On frame 4；The motion bracket 4 is driven by cloth feeding mechanism and drives link block 3 and feed dog frame 1 to move together to transmit cloth
Material；
The first rotational pin 6 is connected on the motion bracket 4, bias is connected with the first sliding block 7, institute on the first rotational pin 6
Link block 3 is stated equipped with first sliding groove 8, first sliding block 7 is stuck in first sliding groove 8, and the rotation of the first rotational pin 6 can
The first sliding block 7 is driven to drive the link block 3 mobile；
It is additionally provided with the kidney slot 9 extended up and down on the motion bracket 4, is equipped with dismountable fixing bolt in kidney slot 9
10, the link block 3 is equipped with threaded hole 11, and fixing bolt 10 passes through kidney slot 9 and is tightened in the threaded hole 11 of link block 3.
In a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model, please refer to figs. 1 to 4, due to fortune
Link block 3 is installed in link slot 5 on dynamic bracket 4, is connected with the first rotational pin 6 on motion bracket 4, on the first rotational pin 6
Bias is connected with the first sliding block 7, and the first sliding block 7 is stuck in the first sliding groove 8 of link block 3, in the kidney slot 9 on motion bracket 4
Fixing bolt 10 link block 3 and motion bracket 4 are fixed together；In this way, when the height and position for needing to adjust feed dog 2
When, first the fixing bolt 10 in the kidney slot 9 is unclamped；Then it rotates first rotational pin 6 and drives the first sliding block 7
The link block 3 is mobile, to adjusting feed dog frame 1 to set height position；Again in holding feed dog frame 1 in the setting
The bolt in the kidney slot 9 is tightened in the case where height and position and fixes link block 3 and motion bracket 4.Thus
As it can be seen that can be conveniently adjusted and send the purpose of this utility model is to provide a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine
The height of cloth tooth 2, structure is simple, easy to use.
In a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model, embodiment party as one preferred
Formula, as shown in figure 3, the motion bracket 4 is equipped with link slot, the link block 3 is mounted in link slot 5；In the first rotation
Under the drive of pin 6, the first sliding block 7 can drive the link block 3 that can slide up and down along link slot 5, and link slot 5 can limit
The position in the horizontal direction of link block 3, please refers to Fig. 3, Fig. 5 and Fig. 6, and the link slot 5 has opposite be arranged in parallel and up and down
The first side 12 and second side 13 of extension；The link block 3 has the first end face 14 being slidably matched with first side 12,
And the second end face 15 being slidably matched with second side 13, in this way, first rotational pin 6 can be to the first sliding block 7 when rotating
Rotation applies thrust upwardly or downwardly, so that the first sliding block 7 of driving is moved up and down along link slot 5.It is as one preferred
Embodiment, as shown in Fig. 3, Fig. 6 and Fig. 7, the first sliding groove 8 is horizontally extending, and the first sliding block 7 is cylindrical, the
The cylindrical surface of one sliding block 7 and the two sides face contact up and down of first sliding groove 8, the axis of the axis of the first sliding block 7 and the first rotational pin 6
Between have a certain distance, the first rotational pin 6 rotate when drive the first sliding block 7 around the axis of the first rotational pin 6 do rotation fortune
Dynamic, the rotary motion of the first sliding block 7 can be decomposed into the component to move horizontally along first sliding groove 8, and drive 3 edge of link block
The component of link slot 5 for vertical movement.It is further preferable that first sliding block 7 and the first rotational pin 6 can be integral structure,
Can also on the first rotational pin 6 one pin shaft of eccentric setting, columned first sliding block 7 is coaxially attached on pin shaft.
In a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model, link block 3 can be moved along link slot 5
It moves and can be fixed on motion bracket 4, as a preferred embodiment, as shown in Fig. 3, Fig. 4 and Fig. 5, the fortune
It is set on dynamic bracket 4 there are two the kidney slot 9, is set on the link block 3 there are two the threaded hole 11, in each kidney slot 9
It is equipped with the fixing bolt 10.When needing to adjust the height and position of feed dog frame 1, fixing bolt 10 is unclamped；It will send
When cloth retainer 1 is adjusted to setting position, then fixing bolt 10 is tightened in the threaded hole 11 of link block 3, thus by link block 3
It is fixed up with motion bracket 4.For the ease of the first rotational pin 6 to be connected on motion bracket 4, such as Fig. 1, Fig. 3 and Fig. 5 institute
Show, the motion bracket 4 is equipped with a connecting hole 16, and first rotational pin 6 is articulated in the connecting hole 16, at first turn
It is connected with circlip 28 on dynamic pin 6, the first rotational pin 6 is blocked and prevents the first rotational pin 6 from connecting hole 16 by circlip 28
Axial movement；When adjusting the height and position of feed dog frame 1, need to rotate first rotational pin 6, for the ease of described in rotation
First rotational pin 6, as shown in fig. 7, the end face of first rotational pin 6 is equipped with ", one " font card slot 17 can use " one " word mouth
Screwdriver is inserted in described " the first rotational pin 6 is rotated in one " font card slot 17.
In a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model, when completion adjusts feed dog frame 1
To setting height, cloth feeding mechanism can drive feed dog frame 1 to move and transfer cloth.Referring to FIG. 1, the work feed
Retainer 1 is fixed on the top of link block 3 by screw 26.The top of feed dog frame 1 is provided with needle plate 24, is provided on needle plate 24
Slot 25, the top of feed dog frame 1 are provided with feed dog 2, and feed dog 2 exposes from the slot 25 on needle plate 24 and prominent and needle
The upper surface of plate 24, when carrying out sewing operation, the upper surface of needle plate 24 is equipped with cloth, and cloth feeding structure drives feed dog frame 1
Make the movement of track close to quadrangle: a) cloth feeding mechanism drives feed dog frame 1 to move upwards and jack up cloth；B) cloth feed machine
Structure drives feed dog frame 1 to move forward a certain distance in the horizontal direction；C) then cloth feeding mechanism drive feed dog frame 1 decline and
Feed dog 2 is set to be moved to 24 upper surface of needle plate hereinafter, to which cloth to be placed on needle plate 24；D) then cloth feeding mechanism drive is sent
Cloth retainer 1 is retracted backward.Cloth can be transferred forward certain distance according to above-mentioned steps a) to step d) every circulation primary.Make
For a kind of preferred embodiment, as shown in Figure 1 to Figure 3, the cloth feeding mechanism includes retainer seat 18 and feed lifting fork 19, retainer seat
18 are driven by cloth pushing shaft 20 and are rotated, and feed lifting fork 19 is driven by feed lifting rock shaft 21 and rotated；One end of motion bracket 4 and retainer seat 18
The end of motion bracket 4 can be hinged on retainer seat 18 by articulated connection using connecting pin 27；The other end of motion bracket 4
It is hinged with the second sliding block 22, feed lifting fork 19 is equipped with second sliding slot 23, and second sliding block 22 is slidably connected at second sliding slot 23
In.It is further preferable that second sliding block 22 has the sliding surface 29 with the cooperation of 23 two sides of second sliding slot respectively, the second sliding block
22 can rotate and can slide along second sliding slot 23 relative to the second rotational pin 30.Cloth pushing shaft 20 and feed lifting rock shaft 21 are co-operatively
Movement can be realized as movement of the above-mentioned steps a) into step d).Referring to FIG. 1, when cloth pushing shaft 20 drives retainer seat 18 to rotate forward
Or when reversion, retainer seat 18 is just able to drive motion bracket 4 and makees horizontal direction movement and have the movement of up and down direction simultaneously
The component motion of component, 18 horizontal direction of retainer seat can make feed dog frame 1 move forwards or backwards, the vertical side of retainer seat 18
To component motion feed dog frame 1 can be made upwardly or downwardly to move；At the same time, feed lifting rock shaft 21 cooperates cloth pushing shaft 20
Rotary motion, to make feed lifting fork 19 rotate and cooperate the movement of retainer seat 18, motion bracket 4 is lifted or decline centainly
Height makes feed dog 2 keep substantially horizontal attitude.When 4 horizontal movement of motion bracket, the second sliding block 22 is along second sliding slot 23
Sliding.
Correspondingly with the height adjustment mechanism of cloth-feeding teeth of sewing machine of the utility model a kind of, the utility model also provides one
The application method of the height adjustment mechanism of kind cloth-feeding teeth of sewing machine, utilizes above-mentioned technical proposal or its any preferred technical solution
The height adjustment mechanism of the cloth-feeding teeth of sewing machine carries out operation,
1) fixing bolt 10 in the kidney slot 9 is unclamped；
2) it rotates first rotational pin 6 and makes the first sliding block 7 that the link block 3 be driven to move along link slot 5, thus will
Feed dog frame 1 is adjusted to set height position；
3) feed dog frame 1 is kept to tighten in the set height position and by the bolt in the kidney slot 9.
Preferably, in above-mentioned steps 2) in, needle plate is protruded from the measuring tool measurement feed dog 2 of such as measuring block etc
The height of 24 upper surfaces, to guarantee that feed dog frame 1 is adjusted to set height position.
Technical solution based on the above embodiment, a kind of height adjustment mechanism energy of cloth-feeding teeth of sewing machine of the utility model
It is enough conveniently adjusted the height of feed dog 2, the part for adjusting required adjusting when 2 height of feed dog is less, and structure is simple, uses
It is convenient.
In conclusion the utility model effectively overcomes various shortcoming in the prior art and has high industrial exploitation value
Value.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (9)
1. a kind of height adjustment mechanism of cloth-feeding teeth of sewing machine, characterized in that including feed dog frame (1), link block (3) and movement
Bracket (4), the feed dog frame (1) are connected on link block (3), and the link block (3) is mounted on motion bracket (4)；Institute
Motion bracket (4) is stated to be driven by cloth feeding mechanism and drive link block (3) and feed dog frame (1) to move together to transmit cloth；
It is connected with the first rotational pin (6) on the motion bracket (4), bias is connected with the first sliding block on the first rotational pin (6)
(7), the link block (3) is equipped with first sliding groove (8), and first sliding block (7) is stuck in first sliding groove (8), and described first
Rotational pin (6) rotation is able to drive the first sliding block (7) and drives the link block (3) mobile；
It is additionally provided with the kidney slot (9) extended up and down on the motion bracket (4), dismountable fixed spiral shell is equipped in kidney slot (9)
Bolt (10), the link block (3) are equipped with threaded hole (11), and fixing bolt (10) passes through kidney slot (9) and is tightened in link block (3)
Threaded hole (11) in.
2. the height adjustment mechanism of cloth-feeding teeth of sewing machine according to claim 1, it is characterised in that: the first sliding groove
(8) horizontally extending, the first sliding block (7) is cylindrical.
3. the height adjustment mechanism of cloth-feeding teeth of sewing machine according to claim 1, it is characterised in that: the motion bracket
(4) it is equipped with link slot, the link block (3) is mounted in link slot (5)；The link slot (5) has opposite be arranged in parallel
And the first side (12) and second side (13) extended up and down；The link block (3) has matches with first side (12) sliding
The first end face (14) of conjunction, and the second end face (15) being slidably matched with second side (13).
4. the height adjustment mechanism of cloth-feeding teeth of sewing machine according to claim 1, it is characterised in that: the motion bracket
(4) it is set on there are two the kidney slot (9), sets that there are two the threaded hole (11), each kidney slots on the link block (3)
(9) fixing bolt (10) is equipped in.
5. the height adjustment mechanism of cloth-feeding teeth of sewing machine according to claim 1, it is characterised in that: the motion bracket
(4) connecting hole (16) are equipped with, first rotational pin (6) is articulated in the connecting hole (16)；First rotational pin
(6) end face is equipped with linear type card slot (17).
6. the height adjustment mechanism of cloth-feeding teeth of sewing machine according to claim 1, it is characterised in that: the cloth feeding mechanism packet
Retainer seat (18) and feed lifting fork (19) are included, retainer seat (18) is driven by cloth pushing shaft (20) and rotated, and feed lifting fork (19) is by feed lifting rock shaft
(21) it drives and rotates；One end and retainer seat (18) of motion bracket (4) are articulated and connected, and the other end of motion bracket (4) is hinged
Have the second sliding block (22), feed lifting fork (19) is equipped with second sliding slot (23), and it is sliding that second sliding block (22) is slidably connected at second
In slot (23).
7. the height adjustment mechanism of cloth-feeding teeth of sewing machine according to claim 6, it is characterised in that: second sliding block
(22) there is the sliding surface (29) respectively with the cooperation of second sliding slot (23) two sides.
8. the height adjustment mechanism of cloth-feeding teeth of sewing machine according to claim 1, it is characterised in that: the feed dog frame
(1) top of link block (3) is fixed on by screw (26).
9. the height adjustment mechanism of cloth-feeding teeth of sewing machine according to claim 1, it is characterised in that: the feed dog frame
(1) top is equipped with needle plate (24), and needle plate (24) is equipped with slot (25), and the feed dog (2) at the top of feed dog frame (1) is from slot
(25) expose in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822250420.1U CN209428707U (en) | 2018-12-29 | 2018-12-29 | The height adjustment mechanism of cloth-feeding teeth of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822250420.1U CN209428707U (en) | 2018-12-29 | 2018-12-29 | The height adjustment mechanism of cloth-feeding teeth of sewing machine |
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| Publication Number | Publication Date |
|---|---|
| CN209428707U true CN209428707U (en) | 2019-09-24 |
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ID=67974670
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822250420.1U Active CN209428707U (en) | 2018-12-29 | 2018-12-29 | The height adjustment mechanism of cloth-feeding teeth of sewing machine |
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| Country | Link |
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| CN (1) | CN209428707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440307A (en) * | 2018-12-29 | 2019-03-08 | 杰克缝纫机股份有限公司 | The height adjustment mechanism and its application method of cloth-feeding teeth of sewing machine |
-
2018
- 2018-12-29 CN CN201822250420.1U patent/CN209428707U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440307A (en) * | 2018-12-29 | 2019-03-08 | 杰克缝纫机股份有限公司 | The height adjustment mechanism and its application method of cloth-feeding teeth of sewing machine |
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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. |