CN212404447U - Cloth cutting mechanism of sewing machine - Google Patents
Cloth cutting mechanism of sewing machine Download PDFInfo
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- CN212404447U CN212404447U CN202020771188.0U CN202020771188U CN212404447U CN 212404447 U CN212404447 U CN 212404447U CN 202020771188 U CN202020771188 U CN 202020771188U CN 212404447 U CN212404447 U CN 212404447U
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- 239000004744 fabric Substances 0.000 title claims abstract description 85
- 230000007246 mechanism Effects 0.000 title claims abstract description 50
- 238000009958 sewing Methods 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims 4
- 239000003638 chemical reducing agent Substances 0.000 description 15
- 230000009471 action Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
本实用新型提供了一种缝纫机的切布机构，属于缝纫机技术领域。它解决了现有缝纫机中切布机构效率低、端口不齐等技术问题。本切布机构包括固定在缝纫机机架上的固定板，固定板上滑动设置有能够升降的安装架，安装架的下方设置有安装座，安装座的下方设有旋转切刀和能够升降的压料板，安装座上固设有能够驱动旋转切刀转动的驱动电机，压料板通过竖向设置的导杆以及弹簧与安装座相连接，压料板底部固设有与旋转切刀相配合的定刀；固定板上固设有能够驱动安装架上下往复移动的驱动件一，安装架和安装座之间通过能够转动的传动杆相连接，安装架上固设有能够驱动传动杆转动的驱动件二。本实用新型切圆角质量高，布片端口平齐，整体效率高。
The utility model provides a cloth cutting mechanism of a sewing machine, which belongs to the technical field of sewing machines. The utility model solves the technical problems of low efficiency of the cloth cutting mechanism and uneven ports in the existing sewing machine. The cloth cutting mechanism includes a fixing plate fixed on the frame of the sewing machine. The fixing plate is slidably provided with a mounting frame that can be lifted and lowered. A mounting seat is arranged below the mounting frame. The material plate, a drive motor capable of driving the rotary cutter to rotate is fixed on the mounting seat, the material pressing plate is connected with the mounting seat through a vertically arranged guide rod and a spring, and the bottom of the material pressing plate is fixed with the rotary cutter to match The fixed knife; the fixed plate is fixed with a driving member that can drive the mounting frame to reciprocate up and down, the mounting frame and the mounting seat are connected by a rotatable transmission rod, and the mounting frame is fixed with a drive rod that can drive the rotation of the transmission rod. Driver two. The utility model has the advantages of high quality of rounded corners, flush cloth ports, and high overall efficiency.
Description
Technical Field
The utility model belongs to the technical field of sewing machine equipment, a cloth cutting mechanism of sewing machine is related to.
Background
The cloth cutting mechanism of the sewing machine in the market at present is that a moving knife moves up and down at a high speed, a small gap between the moving knife and a fixed knife is utilized to cut off a cloth piece, then a cloth feeding mechanism moves the cloth piece, the moving knife moves downwards once to cut back a distance of a knife width, then when the moving knife moves upwards, a cloth clamping mechanism clamps the cloth piece to move for a distance, when the moving is completed, the moving knife moves downwards again to cut the cloth, and the cloth cutting action can be completed by repeating the steps.
For example, Chinese patent (publication No. CN 201439566U; published: 2010-4-21) discloses a cutter mechanism of a sewing machine, wherein a cutter edge, a material piercing part at the front end of the cutter body, a material piercing part rear inclined plane at the front end of the cutter body and a cutter rear inclined plane are respectively designed on a cutter body of the cutter mechanism, the cutter edge and the material piercing part at the front end of the cutter body are generally in two parallel obtuse angle structures, and a material piercing part rear inclined plane at the front end of the cutter body is designed behind the material piercing part at the front end of the cutter body, so that the material piercing part at the front end of the cutter body is in a sharp angle shape.
In the use process of the sewing machine cutter mechanism in the patent document, when a fillet needs to be cut, the cutter continuously moves up and down, deviation is easily generated, and the end openings of the cut cloth pieces are not uniform, so that the cloth cutting quality is influenced.
Disclosure of Invention
The utility model discloses according to the above-mentioned problem that prior art exists, a sewing machine's cloth cutting mechanism is provided, the utility model aims to solve the technical problem that: how to improve the cloth cutting quality and the cloth cutting efficiency of a cloth cutting mechanism in a sewing machine.
The purpose of the utility model can be realized through the following technical scheme:
the cloth cutting mechanism of the sewing machine comprises a fixed plate fixed on a sewing machine frame, and is characterized in that a lifting mounting frame is arranged on the fixed plate in a sliding manner, a mounting seat is arranged below the mounting frame, a rotary cutter and a lifting pressure plate are arranged below the mounting seat, a driving motor capable of driving the rotary cutter to rotate is fixedly arranged on the mounting seat, the pressure plate is connected with the mounting seat through a guide rod and a spring which are vertically arranged, and a fixed cutter matched with the rotary cutter is fixedly arranged at the bottom of the pressure plate; the mounting frame is characterized in that a first driving piece capable of driving the mounting frame to reciprocate up and down is fixedly arranged on the fixing plate, the mounting frame is connected with the mounting seat through a transmission rod capable of rotating, and a second driving piece capable of driving the transmission rod to rotate is fixedly arranged on the mounting frame.
The working principle is as follows: when the cloth needs to be cut, the cloth is placed below the pressure plate, the first driving piece drives the whole mounting frame to move downwards, the mounting frame drives the mounting seat and the accessory parts to move downwards, and the pressure plate is pressed on the cloth and keeps stable. After the pressure flitch receives reverse acting force, can overcome the effort of spring and for the mount pad upwards move a section distance, the reaction force of spring can make the pressure flitch compress tightly the cloth, simultaneously, rotary cutter's downside is less than the bottom surface of pressure flitch to contact the cloth, rotary cutter rotates under driving motor's drive, realizes the action of cutting the cloth with the stationary knife cooperation. When the fillet needs to be cut, the driving piece II drives the transmission rod to rotate, so that the mounting seat and the rotary cutter are driven to rotate together, and the rotary cutter is used for cutting the fillet. In the working process of the cloth cutting mechanism of the sewing machine, the cloth clamping mechanism can clamp the cloth piece to move continuously and cut continuously, so that the cloth cutting efficiency is greatly improved; the rotary cutter is driven by the transmission rod to swing in the vertical direction, so that a circular bead can be cut, the phenomenon of uneven cloth cutting notches can be avoided due to the fact that the movable cutter does not need to move up and down, and the cloth cutting quality is greatly improved.
In the cloth cutting mechanism of the sewing machine, the fixing plate is vertically arranged, the mounting plate and the vertical sliding rail are respectively and fixedly arranged on one side of the fixing plate, the driving piece is fixedly arranged on the mounting plate, and the mounting frame is connected to the sliding rail through the sliding block in a sliding manner. This is convenient for the stability and reliability that the mounting bracket reciprocated.
In the cloth cutting mechanism of the sewing machine, the first driving part is a driving cylinder, the driving cylinder is fixedly arranged on the mounting plate vertically downwards, and the lower end of a piston rod of the driving cylinder is fixedly connected with the mounting plate; the driving piece II is a rotating motor, the rotating motor is vertically and fixedly arranged on the mounting frame downwards, the transmission rod is vertically arranged, the upper end of the transmission rod is fixedly connected with an output shaft of the rotating motor, and the lower end of the transmission rod is fixedly connected with the mounting seat. Further, the mounting bracket is the plate of L type, and it includes vertical curb plate and horizontally bottom plate, and the slider links firmly in the side of curb plate, and the rotating electrical machines sets firmly on the bottom plate, and the piston rod lower extreme that drives actuating cylinder links firmly with the bottom plate.
When cloth cutting is needed, the driving cylinder is ventilated, a piston of the driving cylinder pushes the mounting frame to move downwards along the sliding rail by using a sliding block on the mounting frame, and the mounting frame drives the mounting seat and a mechanism below the mounting seat to move downwards through the transmission rod; the rotating motor is electrified to drive the rotating cutter to rotate; when the pressure plate moves down to contact with the cloth, the mounting frame drives the mounting seat to move down continuously for a certain distance, the pressure plate compresses the cloth under the action of the spring, the driving cylinder stops ventilating, the mounting frame stops moving down, and the rotary cutter and the fixed cutter are matched to cut the cloth. When the fillet needs to be cut, the rotating motor is electrified, and the transmission rod on the rotating motor drives the mounting seat and the mechanism below the mounting seat to rotate together, so that the fillet is conveniently cut by the rotating cutter. This cloth cutting mechanism pushes away the mounting bracket and move down below it through driving actuating cylinder to make the pressure flitch compress tightly the cloth, and realize the fillet through setting up the rotating electrical machines.
Alternatively, the first driving member may be a hydraulic cylinder or a combination of a motor and a lead screw nut, and the second driving member may be a rotary cylinder.
In the cloth cutting mechanism of the sewing machine, the mounting seat is fixedly provided with the guide sleeve, the lower end of the guide rod is fixedly connected with the pressure plate, the upper end of the guide rod penetrates through the guide sleeve in a sliding manner, the spring is sleeved on the guide rod, and two ends of the spring respectively act on the pressure plate and the mounting seat. Under the action force of the spring, the material pressing plate can press the cloth.
In the cloth cutting mechanism of the sewing machine, the bottom of the mounting seat is provided with a supporting plate extending downwards, the lower end of the supporting plate is provided with a transverse rotating shaft, one end of the rotating shaft is fixedly provided with a driven helical gear, the rotary cutter is fixedly arranged at the other end of the rotating shaft, and an output shaft of the driving motor is fixedly provided with a driving helical gear meshed with the driven helical gear. The rotating motor is electrified, the output shaft of the rotating motor drives the driving bevel gear to rotate, the driving bevel gear drives the driven bevel gear meshed with the driving bevel gear to rotate, and the driven bevel gear rotates through the rotating shaft, so that the rotating cutter is driven to operate.
In the cloth cutting mechanism of the sewing machine, the number of the guide rods is two, the guide rods are respectively positioned on two sides of the support plate, and the two ends of each guide rod are respectively and fixedly provided with the limiting nuts. Therefore, balance and stability of the material pressing plate can be guaranteed.
In the cloth cutting mechanism of the sewing machine, the pressure plate is provided with a mounting hole, and the lower end of the support plate and the rotary cutter can extend into the mounting hole; the pressure flitch is located on the bottom surface be provided with the mounting groove on one side of the mounting hole, the stationary knife sets firmly through set screw in the mounting groove just the cutting edge orientation of stationary knife the mounting hole. The rotary cutter can penetrate through the middle of the material pressing plate, and the stability and the reliability of the cloth cutting are guaranteed.
Further, in the cloth cutting mechanism of the sewing machine, the lower end of the rotating motor is fixedly connected with the speed reducer, the lower end of the speed reducer is fixedly connected with the cushion block of the speed reducer, the cushion block of the speed reducer is fixedly connected with the mounting frame, and the transmission rod sequentially penetrates through the speed reducer, the cushion block of the speed reducer and the mounting frame; the speed reducer is arranged to prevent the rotary cutter from turning violently to cause rough cut.
Compared with the prior art, the utility model has the advantages of it is following:
1. this cloth cutting mechanism can drive the mounting bracket and following mechanism rotate through setting up the rotating electrical machines, makes things convenient for rotatory cutter to cut the fillet, does not need the cutter to reciprocate, consequently the uneven phenomenon of incision can not appear.
2. According to the cloth cutting mechanism, the mounting frame and the fixed plate are connected in a sliding mode through the sliding blocks and the sliding rails, and the driving air cylinder is conveniently driven to drive the mounting frame and the mechanism below the mounting frame to move up and down stably and reliably.
3. According to the cloth cutting mechanism, the pressure plate is connected with the mounting seat through the guide rod and the spring, the elastic force of the spring acts on the pressure plate, the pressure plate is helped to compress cloth, and the rotary cutter is convenient to cut.
Drawings
Fig. 1 is a schematic perspective view of the cloth cutting mechanism.
Fig. 2 is a schematic perspective view of the present fabric cutting mechanism.
Fig. 3 is a schematic view of the mounting structure of the mounting frame in the cloth cutting mechanism.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 2.
FIG. 5 is a schematic view of the bottom of the pressure plate in the cloth cutting mechanism.
In the figure, 1, fixing plate; 2. a mounting frame; 3. a mounting seat; 4. rotating the cutter; 5. a material pressing plate; 5a, mounting holes; 5b, mounting grooves; 6. a drive motor; 7. a guide bar; 8. a spring; 9. fixing a cutter; 10. a first driving part; 10a, a driving cylinder; 11. a transmission rod; 12. a driving part II; 12a, a rotating electrical machine; 13. mounting a plate; 14. a slide rail; 15. a slider; 16. a guide sleeve; 17. a support plate; 18. a rotating shaft; 19. a driven helical gear; 20. a driving bevel gear; 21. a limit nut; 22. a set screw; 23. and a speed reducer.
Detailed Description
The following is a specific embodiment of the present invention and the accompanying drawings are combined to further explain the technical solution of the present invention, but the present invention is not limited to the following embodiments.
As shown in fig. 1 to 5, the cloth cutting mechanism of the sewing machine comprises a fixed plate 1 fixed on a frame of the sewing machine, a mounting frame 2 capable of lifting is slidably arranged on the fixed plate 1, a mounting seat 3 is arranged below the mounting frame 2, a rotary cutter 4 and a pressure plate 5 capable of lifting are arranged below the mounting seat 3, a driving motor 6 capable of driving the rotary cutter 4 to rotate is fixedly arranged on the mounting seat 3, the pressure plate 5 is connected with the mounting seat 3 through a guide rod 7 and a spring 8 which are vertically arranged, and a fixed cutter 9 matched with the rotary cutter 4 is fixedly arranged at the bottom of the pressure plate 5; the fixed plate 1 is fixedly provided with a first driving piece 10 capable of driving the mounting frame 2 to reciprocate up and down, the mounting frame 2 and the mounting base 3 are connected through a transmission rod 11 capable of rotating, and the mounting frame 2 is fixedly provided with a second driving piece 12 capable of driving the transmission rod 11 to rotate. When cloth needs to be cut, the cloth is placed below the pressure plate 5, the driving piece I10 drives the whole mounting frame 2 to move downwards, the mounting frame 2 drives the mounting seat 3 and the accessory parts to move downwards, and the pressure plate 5 presses the cloth and keeps stable. After the pressure flitch 5 receives reverse acting force, can overcome spring 8's effort and for a certain distance of mount pad 3 upwards removal, spring 8's reaction force can make pressure flitch 5 compress tightly the cloth, and simultaneously, the downside of rotary cutter 4 is less than the bottom surface of pressure flitch 5 to contact cloth, rotary cutter 4 rotates under driving motor 6's drive, realizes the action of cutting the cloth with the cooperation of stationary knife 9. When the fillet needs to be cut, the second driving part 12 drives the transmission rod 11 to rotate, so that the mounting seat 3 and the rotary cutter 4 are driven to rotate together, and the rotary cutter 4 is used for cutting the fillet. In the working process of the cloth cutting mechanism of the sewing machine, the cloth clamping mechanism can clamp the cloth piece to move continuously and cut continuously, so that the cloth cutting efficiency is greatly improved; the rotary cutter 4 is driven to swing in the vertical direction through the transmission rod 11, so that a circular bead can be cut, the phenomenon of uneven cloth cutting notches cannot be caused due to the fact that the movable cutter does not need to move up and down, and the cloth cutting quality is greatly improved.
Specifically, as shown in fig. 2, the fixing plate 1 is vertically disposed, a mounting plate 13 and a vertical slide rail 14 are respectively and fixedly disposed on one side of the fixing plate 1, the first driving member 10 is fixedly disposed on the mounting plate 13, and the mounting frame 2 is slidably connected to the slide rail 14 through a sliding block 15. In this embodiment, the driving member one 10 is a driving cylinder 10a, the driving cylinder 10a is vertically and downwardly fixed on the mounting plate 13, and the lower end of a piston rod of the driving cylinder 10a is fixedly connected with the mounting frame 2; the second driving piece 12 is a rotating motor 12a, the rotating motor 12a is vertically and downwards fixedly arranged on the mounting frame 2, the transmission rod 11 is vertically arranged, the upper end of the transmission rod 11 is fixedly connected with an output shaft of the rotating motor 12a, and the lower end of the transmission rod 11 is fixedly connected with the mounting base 3; mounting bracket 2 is the plate of L type, and it includes vertical curb plate and horizontally bottom plate, and slider 15 links firmly in the side of curb plate, and rotating electrical machines 12a sets firmly on the bottom plate, and the piston rod lower extreme that drives actuating cylinder 10a links firmly with the bottom plate. The lower end of the rotating motor 12a is fixedly connected with a speed reducer 23, the lower end of the speed reducer 23 is fixedly connected with a speed reducer cushion block, the speed reducer cushion block is fixedly connected with the mounting frame 2, and the transmission rod 11 sequentially penetrates through the speed reducer 23, the speed reducer cushion block and the mounting frame 2; the speed reducer 23 is provided to prevent the rotary cutter 4 from turning sharply to cause rough cut. When cloth cutting is needed, the driving cylinder 10a is ventilated, a piston of the driving cylinder 10a pushes the mounting frame 2 to move downwards along the slide rail 14 by using the slide block 15 on the mounting frame, and the mounting frame 2 drives the mounting base 3 and a mechanism below the mounting base to move downwards through the transmission rod 11; the rotating motor 12a is electrified to drive the rotating cutter 4 to rotate; after the pressure plate 5 moves downwards to contact with the cloth, the mounting frame 2 drives the mounting seat 3 to move downwards continuously for a certain distance, the pressure plate 5 compresses the cloth under the action of the spring 8, the driving cylinder 10a stops ventilating, the mounting frame 2 stops moving downwards, and the rotary cutter 4 is matched with the fixed cutter 9 to cut the cloth. When the fillet needs to be cut, the rotating motor 12a is electrified and drives the mounting seat 3 and the mechanisms below the mounting seat to rotate together through the transmission rod 11 on the rotating motor, so that the fillet cutting of the rotating cutter 4 is facilitated. This cloth cutting mechanism pushes away mounting bracket 2 and mechanism below through driving actuating cylinder 10a and moves down to make pressure flitch 5 compress tightly the cloth, and realize the fillet of cutting through setting up rotating electrical machines 12 a.
As shown in fig. 1, 2 and 4, a guide sleeve 16 is fixedly arranged on the mounting base 3, the lower end of the guide rod 7 is fixedly connected with the pressure plate 5, the upper end of the guide rod 7 slidably penetrates through the guide sleeve 16, the spring 8 is sleeved on the guide rod 7, two ends of the spring 8 respectively act on the pressure plate 5 and the mounting base 3, and the pressure plate 5 can compress cloth under the action of the spring 8; referring to fig. 5, the bottom of the mounting base 3 has a supporting plate 17 extending downward, a transverse rotating shaft 18 is disposed at the lower end of the supporting plate 17, a driven helical gear 19 is fixedly disposed at one end of the rotating shaft 18, the rotary cutter 4 is fixedly disposed at the other end of the rotating shaft 18, and a driving helical gear 20 engaged with the driven helical gear 19 is fixedly disposed on the output shaft of the driving motor 6. The rotating motor 12a is electrified, the output shaft of the rotating motor drives the driving bevel gear 20 to rotate, the driving bevel gear 20 drives the driven bevel gear 19 meshed with the driving bevel gear to rotate, and the driven bevel gear 19 rotates through the rotating shaft 18, so that the rotating cutter 4 is driven to operate; preferably, the number of the guide rods 7 is two, the two guide rods are respectively located at two sides of the support plate 17, and two ends of each guide rod 7 are respectively and fixedly provided with a limiting nut 21. Therefore, the balance and stability of the material pressing plate 5 can be ensured. The pressure plate 5 is provided with a mounting hole 5a, and the lower end of the support plate 17 and the rotary cutter 4 can extend into the mounting hole 5 a; a mounting groove 5b is formed in the bottom surface of the pressure plate 5 and located on one side of the mounting hole 5a, the fixed knife 9 is fixedly arranged in the mounting groove 5b through a fixing screw 22, and the cutting edge of the fixed knife 9 faces the mounting hole 5 a; the rotary cutter 4 can penetrate through the middle of the material pressing plate 5, and the stability and the reliability of the cloth cutting are guaranteed.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although more 1, a fixed plate is used herein; 2. a mounting frame; 3. a mounting seat; 4. rotating the cutter; 5. a material pressing plate; 5a, mounting holes; 5b, mounting grooves; 6. a drive motor; 7. a guide bar; 8. a spring; 9. fixing a cutter; 10. a first driving part; 10a, a driving cylinder; 11. a transmission rod; 12. a driving part II; 12a, a rotating electrical machine; 13. mounting a plate; 14. a slide rail; 15. a slider; 16. a guide sleeve; 17. a support plate; 18. a rotating shaft; 19. a driven helical gear; 20. a driving bevel gear; 21. a limit nut; 22. a set screw; 23. decelerator, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020771188.0U CN212404447U (en) | 2020-05-11 | 2020-05-11 | Cloth cutting mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020771188.0U CN212404447U (en) | 2020-05-11 | 2020-05-11 | Cloth cutting mechanism of sewing machine |
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| Publication Number | Publication Date |
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| CN212404447U true CN212404447U (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020771188.0U Active CN212404447U (en) | 2020-05-11 | 2020-05-11 | Cloth cutting mechanism of sewing machine |
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| CN (1) | CN212404447U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110212A (en) * | 2022-07-20 | 2022-09-27 | 成都法恩沃克科技有限公司 | Automatic bag machine of opening of vibration sword formula computer |
| CN115434082A (en) * | 2022-10-09 | 2022-12-06 | 南通云龙智能科技有限公司 | Quilting machine assembly |
-
2020
- 2020-05-11 CN CN202020771188.0U patent/CN212404447U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115110212A (en) * | 2022-07-20 | 2022-09-27 | 成都法恩沃克科技有限公司 | Automatic bag machine of opening of vibration sword formula computer |
| CN115110212B (en) * | 2022-07-20 | 2023-11-07 | 成都法恩沃克科技有限公司 | Automatic bag opening machine of vibrating knife type computer |
| CN115434082A (en) * | 2022-10-09 | 2022-12-06 | 南通云龙智能科技有限公司 | Quilting machine assembly |
| CN115434082B (en) * | 2022-10-09 | 2023-10-10 | 南通云龙智能科技有限公司 | Quilting machine assembly |
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| CP01 | Change in the name or title of a patent holder |
Address after: 318014 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318014 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee before: JACK SEWING MACHINE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |