CN114164577A - Thread trimming and presser foot device for stepping button sewing machine - Google Patents
Thread trimming and presser foot device for stepping button sewing machine Download PDFInfo
- Publication number
- CN114164577A CN114164577A CN202111363851.9A CN202111363851A CN114164577A CN 114164577 A CN114164577 A CN 114164577A CN 202111363851 A CN202111363851 A CN 202111363851A CN 114164577 A CN114164577 A CN 114164577A
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- CN
- China
- Prior art keywords
- presser foot
- connecting rod
- thread trimming
- sewing machine
- button sewing
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/10—Electrical or electromagnetic drives
- D05B69/12—Electrical or electromagnetic drives using rotary electric motors
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/06—Presser feet
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/30—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a thread trimming and presser foot device for a stepping button sewing machine.A swinging part is arranged on a motor shaft of a stepping motor; one end of the first connecting rod is arranged on a positioning shaft of the swinging part; the other end of the first connecting rod is arranged at one end of the thread trimming mechanism; the other end of the thread trimming mechanism is provided with one end of a second connecting rod; scissors are arranged at the other end of the second connecting rod; one end of the third connecting rod is arranged in a second positioning hole on the thread trimming mechanism; the other end of the third connecting rod is provided with one end of the presser foot swing part; the other end of the pressure foot swing part is provided with a first pull rod; one end of the tension spring is arranged on the presser foot swing part, and the other end of the tension spring is arranged at the top of the machine head of the button sewing machine; the second pull rod is arranged on the foot pressing plate; the horizontal part of the first pull rod is parallel to the horizontal part of the second pull rod; one end of the pressure spring is arranged on the foot pressing plate, and the other end of the pressure spring is arranged on the head of the button sewing machine. The invention has less noise, and the stepping motor replaces parts such as an electromagnet, reduces part of parts, reduces the cost and simplifies the installation.
Description
Technical Field
The invention relates to the technical field of button sewing machines, in particular to a thread trimming and presser foot device for a stepping button sewing machine.
Background
In recent years, button sewing machines in the sewing machine industry mainly have the functions of sewing buttons on clothes such as shirts and the like, and the buttons are fixed on the clothes in a cross button sewing and cross button sewing mode, so that the overall attractiveness is ensured. In the sewing process, a spindle motor drives a needle rod to move to be responsible for button sewing, the presser foot is lifted to move after the sewing is finished, the next station is changed, meanwhile, the thread trimming action is started to trim redundant thread ends, an active driving device for finishing the working procedures is an electric control device, a motor and an electromagnet, the electromagnet is connected with the presser foot lifting and thread trimming mechanism, and the related action is realized through a controller. In the working process of the sewing machine, the presser foot needs to be lifted up and the residual thread end needs to be cut off by scissors every time the sewing machine completes a sewing action, most of the sewing machines in the existing industrial sewing machines work by using electromagnets, and the electromagnets are connected with the presser foot lifting mechanism and the thread cutting mechanism. 2. When the electromagnet works, only two working states of attraction exist, the electromagnet is connected with the presser foot lifting and trimming mechanism, the spring and the associated mechanism are driven in the attraction process, the whole action is completed by the deformation of the spring, once the assembly is abnormal or the spring force is insufficient, the spring cannot return, and under the condition that the trimming mechanism is not completely returned, the spindle motor controls the needle rod to move, the needle is easily broken, so that the production efficiency of operators is extremely influenced, and the personal safety of the operators is endangered. 3. The electromagnet device comprises a rotating shaft, a bracket, a wrench and other parts, so that the whole cost is high, the requirement on the assembly process of workers is high, and the installation is complex.
Disclosure of Invention
In view of the above, the present invention provides a thread trimming and presser foot device for a stepping button sewing machine.
The technical scheme adopted by the invention is as follows: a thread trimming and presser foot device for a stepping button sewing machine, comprising:
the device comprises a stepping motor, a swinging part, a first connecting rod, a thread trimming mechanism, a second connecting rod, scissors, a third connecting rod, a tension spring, a presser foot swing part, a first pull rod, a second pull rod, a presser foot plate and a pressure spring;
the swing part is arranged on a motor shaft of the stepping motor;
one end of the first connecting rod is arranged on a positioning shaft of the swinging part;
the other end of the first connecting rod is arranged at one end of the thread trimming mechanism;
the other end of the thread trimming mechanism is provided with one end of the second connecting rod;
the scissors are arranged at the other end of the second connecting rod;
one end of the third connecting rod is arranged in a second positioning hole in the thread trimming mechanism;
the other end of the third connecting rod is provided with one end of the presser foot swing part;
the other end of the presser foot swing part is provided with the first pull rod;
one end of the tension spring is arranged on the presser foot swing part, and the other end of the tension spring is arranged at the top of the machine head of the button sewing machine;
the second pull rod is installed on the foot pressing plate;
the first and second tie rods are partially interleaved;
one end of the pressure spring is arranged on the foot pressing plate, and the other end of the pressure spring is arranged on the head of the button sewing machine.
The thread trimming and presser foot device for the stepping button sewing machine is characterized in that the stepping motor adopts an incremental encoder to realize closed-loop control.
The thread trimming and presser foot device for the stepping button sewing machine is characterized in that the swing part is fixed on the motor shaft through a set screw.
In the thread trimming and presser foot device for the stepping button sewing machine, the mounting shaft is positioned by the elastic check ring when the swinging part is connected with the first connecting rod.
The thread trimming and presser foot device for the stepping button sewing machine is characterized in that the first connecting rod and the thread trimming mechanism are fixed through bolts; the thread trimming mechanism and the second connecting rod are fixed through bolts; the third connecting rod and the thread trimming mechanism are fixed through bolts; the presser foot swing part and the third connecting rod are fixed through bolts.
The thread trimming and presser foot device for the stepping button sewing machine is characterized in that the first pull rod can contact with and drive the second pull rod to move.
The thread trimming and presser foot device for the stepping button sewing machine is characterized in that a positioning hole is formed in the middle of the presser foot swing part.
The thread trimming and presser foot device for the stepping button sewing machine is characterized in that the presser foot plate is provided with a positioning seat, and the second pull rod and the presser foot plate are installed through the positioning seat.
The thread trimming and presser foot device for the stepping button sewing machine is characterized in that a positioning column is arranged in the middle of the pressure spring.
A use method of a thread cutting and presser foot device for a stepping button sewing machine, which comprises any one of the thread cutting and presser foot device for the stepping button sewing machine,
when the stepping motor is in a zero position, the tension spring and the pressure spring are in a natural state, and the thread cutting device does not work;
when a motor shaft of the stepping motor drives the swinging part to rotate clockwise, the swinging part drives the first connecting rod to move left and right first, the first connecting rod drives the upper end of the thread trimming mechanism to move left and right first, the lower end of the thread trimming mechanism to move right and left first, the thread trimming mechanism drives the scissors to move right and left first through the second connecting rod, the thread trimming mechanism drives the third connecting rod to move down and up first, the third connecting rod drives the left end of the presser foot swing part to move down and up first, the right end of the presser foot swing part to move up and down first, at the moment, the tension spring is stretched and then shrunk, the presser foot drives the presser foot pressing plate to move up and down first through the first connecting rod and the second connecting rod, and at the moment, the pressure spring is shrunk and stretched first;
when the motor shaft of the stepping motor drives the swinging part to rotate anticlockwise, the movement direction is opposite to that of the clockwise rotation.
Compared with the prior art, the technical scheme has the positive effects that:
the utility model provides a thread trimming and presser foot device for step-by-step button sewing machine, it is less to adopt step motor at the during operation noise, and step motor adopts the increment encoder to form closed-loop control, be exactly the continuous action of all motion of effectual assurance, avoid bringing the dead phenomenon of mechanism card because of the abnormality of spring or other spare parts, step motor control pulse number comes control angle displacement volume, come control motor pivoted speed and acceleration through control pulse frequency, thereby reach the purpose of accurate positioning and speed governing, under servo controller's accurate control, can control each step of button sewing machine mechanism, do not receive the influence of spring dynamics, the phenomenon of broken needle when mechanical interference can not appear, thereby improve workman work efficiency, the personal safety of protection workman. Meanwhile, the stepping motor replaces relevant parts of the electromagnet, so that part of parts can be reduced, the cost of the whole machine is reduced, the installation is simplified, and the installation is more convenient.
Drawings
Fig. 1 is a view showing a state of use of a thread trimming and presser foot device for a step button sewing machine according to the present invention.
Fig. 2 is a front view of a thread trimming and presser foot device for a step button sewing machine according to the present invention.
Fig. 3 is an assembly view of a trimming and presser foot device for a step button sewing machine according to the present invention.
Fig. 4 is an exploded view of the stepping motor of the present invention.
1. A stepping motor; 2. a swinging part; 3. a first link; 4. a thread trimming mechanism; 401. a second positioning hole; 402. a third positioning hole; 5. a second link; 6. scissors; 7. a third link; 8. a presser foot swing; 801. a first positioning hole; 9. a first pull rod; 10. a second pull rod; 11. a tension spring; 12. a pressure spring; 13. a foot pressing plate; 14. a circlip for the shaft; 15. a motor shaft; 16. positioning the shaft; 17. tightening the screw; 18. a positioning seat.
Detailed Description
The invention is further described with reference to the following drawings and detailed description, but is not intended to be limited thereto.
The structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the art, and any structural modifications, changes in proportions, or adjustments in size, which do not affect the efficacy and attainment of the same are intended to fall within the scope of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
In combination with fig. 1-4, a trimming and presser foot device for a step-by-step button sewing machine, comprising: step motor 1, swing part 2, first connecting rod 3, trimming mechanism 4, second connecting rod 5, scissors 6, third connecting rod 7, extension spring 11, presser foot goods of furniture for display rather than for use 8, first pull rod 9, second pull rod 10, presser foot board 13, pressure spring 12.
The swinging part 2 is arranged on a motor shaft 15 of the stepping motor 1; one end of the first connecting rod 3 is arranged on a positioning shaft 16 of the swinging part 2; the other end of the first connecting rod 3 is arranged at one end of the thread trimming mechanism 4; the other end of the thread trimming mechanism 4 is provided with one end of a second connecting rod 5; the other end of the second connecting rod 5 is provided with a pair of scissors 6; one end of the third connecting rod 7 is arranged in a second positioning hole 401 on the thread trimming mechanism 4; the other end of the third connecting rod 7 is provided with one end of a presser foot swing part 8; the other end of the presser foot swing part 8 is provided with a first pull rod 9; one end of a tension spring 11 is arranged on the presser foot swing part 8; the other end is arranged at the top of the head of the button attaching machine; the second pull rod 10 is arranged on the foot pressing plate 13; the first tie rod 9 and the second tie rod 10 are partially staggered; one end of the pressure spring 12 is arranged on the foot pressing plate 13, and the other end is arranged on the head of the button sewing machine.
Further, a thread trimming and presser foot device for a stepping button sewing machine, wherein a stepping motor 1 adopts an incremental encoder to realize closed-loop control. The incremental encoder is adopted to ensure that the movement precision of the scissors is more accurate, and the phenomenon that the trimming scissors cannot be used can not occur.
Further, a thread cutting and presser foot device for a stepping button sewing machine, a swinging part 2 is fixed on a motor shaft 15 through a set screw. The set screw prevents the swinging component 2 from falling off the stepping motor 1.
Further, a thread cutting and pressing device for a stepping button sewing machine, when a swinging part 2 is connected with a first connecting rod 3, a mounting shaft is positioned by an elastic check ring 14. The first link 3 is prevented from slipping off the swinging part 2.
Further, a thread cutting and pressing foot device for a stepping button sewing machine, wherein a first connecting rod 3 and a thread cutting mechanism 4 are fixed through bolts; the thread trimming mechanism 4 and the second connecting rod 5 are fixed through bolts; the third connecting rod 7 is fixed with the thread trimming mechanism 4 through a bolt; the presser foot swing part 8 and the third connecting rod 7 are fixed through bolts. The installation structure is simple by using the bolt, and the installation is convenient.
Further, a thread cutting and presser foot device for a stepping button sewing machine, a first pull rod 9 can contact and drive a second pull rod 10 to move. When the first pull rod 9 moves upwards, the first pull rod 9 contacts the second pull rod 10 to drive the second pull rod 10 to move upwards, and when the first pull rod 9 moves downwards, the second pull rod 10 returns.
Further, a thread trimming and presser foot device for a stepping button sewing machine, wherein a first positioning hole 801 is arranged in the middle of a presser foot swing part 8. The first locating hole 801 facilitates mounting of the presser foot swing 8 on the button sewing machine.
Further, a thread trimming and presser foot device for a stepping button sewing machine is characterized in that a positioning seat 18 is arranged on a presser foot plate 13, and the second pull rod 10 and the presser foot plate 13 are installed through the positioning seat 18. The second draw bar 10 is more firmly installed.
Furthermore, a trimming and presser foot device for a stepping button sewing machine is characterized in that a positioning column is arranged in the middle of a pressure spring 12, so that the compression and return of the pressure spring 12 are both in fixed positions and cannot be deformed.
A use method of a thread cutting and presser foot device for a stepping button sewing machine, which comprises any one of the thread cutting and presser foot device for the stepping button sewing machine,
when the stepping motor 1 is in the zero position, the tension spring 11 and the compression spring 12 are both in a natural state, and the thread trimming device does not work.
When a motor shaft 15 of the stepping motor 1 drives the swinging part 2 to rotate clockwise, the swinging part 2 drives the first connecting rod 3 to move left and right, a third positioning hole 402 on the thread cutting mechanism 4 is fixed on the button sewing machine, the thread cutting mechanism 4 rotates by taking the third positioning hole 402 as a center, the first connecting rod 3 drives the upper end of the thread cutting mechanism 4 to move left and right, the lower end of the thread cutting mechanism 4 moves right and left first, the thread cutting mechanism 4 drives the scissors to move right and left first through the second connecting rod 5, the thread cutting mechanism 4 drives the third connecting rod 7 to move up and down first, the first positioning hole 801 on the presser foot swing part 8 is fixed on the button sewing machine, the presser foot swing part 8 rotates by taking the first positioning hole 801 as a center, the third connecting rod 7 drives the left end of the presser foot swing part 8 to move up and down first, the right end of the presser foot swing part 8 to move up and down first, at the moment, the tension spring 11 stretches first and then contracts, the presser foot swing part 8 drives the presser foot plate 13 to move up and down through the first pull rod 9 and the second pull rod 10, and at the moment, the pressure spring 12 contracts and then stretches.
When the motor shaft 15 of the stepping motor 1 drives the swinging part 2 to rotate counterclockwise, the movement direction is opposite to that of the clockwise rotation.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A thread trimming and presser foot device for a stepping button sewing machine, comprising:
the device comprises a stepping motor, a swinging part, a first connecting rod, a thread trimming mechanism, a second connecting rod, scissors, a third connecting rod, a tension spring, a presser foot swing part, a first pull rod, a second pull rod, a presser foot plate and a pressure spring;
the swing part is arranged on a motor shaft of the stepping motor;
one end of the first connecting rod is arranged on a positioning shaft of the swinging part;
the other end of the first connecting rod is arranged at one end of the thread trimming mechanism;
the other end of the thread trimming mechanism is provided with one end of the second connecting rod;
the scissors are arranged at the other end of the second connecting rod;
one end of the third connecting rod is arranged in a second positioning hole in the thread trimming mechanism;
the other end of the third connecting rod is provided with one end of the presser foot swing part;
the other end of the presser foot swing part is provided with the first pull rod;
one end of the tension spring is arranged on the presser foot swing part, and the other end of the tension spring is arranged at the top of the machine head of the button sewing machine;
the second pull rod is installed on the foot pressing plate;
the first and second tie rods are partially interleaved;
one end of the pressure spring is arranged on the foot pressing plate, and the other end of the pressure spring is arranged on the head of the button sewing machine.
2. The thread trimming and presser foot device for a step button attaching machine as claimed in claim 1, wherein said stepping motor is closed loop controlled using an incremental encoder.
3. The thread trimming and presser foot device for step button attaching machine as claimed in claim 1, wherein said swinging member is fixed to said motor shaft by a set screw.
4. The thread trimming and presser foot device for step button attaching machine as claimed in claim 1, wherein the mounting shaft is positioned with a circlip when said swinging member is coupled to said first link.
5. The thread trimming and presser foot device for a step button sewing machine as claimed in claim 1, wherein said first link is fixed to said thread trimming mechanism by a bolt; the thread trimming mechanism and the second connecting rod are fixed through bolts; the third connecting rod and the thread trimming mechanism are fixed through bolts; the presser foot swing part and the third connecting rod are fixed through bolts.
6. The thread trimming and presser foot device for a step button attaching machine as claimed in claim 1, wherein said first pull rod contactably moves said second pull rod.
7. The thread trimming and presser foot device for a step button attaching machine as claimed in claim 1, wherein said presser foot swing portion is provided with a first positioning hole in the middle.
8. The thread trimming and presser foot device for a step button sewing machine as claimed in claim 1, wherein said presser foot plate is provided with a positioning seat, and said second pull rod and said presser foot plate are mounted through said positioning seat.
9. The thread trimming and presser foot device for step button sewing machine as claimed in claim 1, wherein a positioning post is provided in the middle of said pressing spring.
10. A method of using a trimming and presser foot device for a step button sewing machine, comprising the trimming and presser foot device for a step button sewing machine of any one of claims 1 to 10,
when the stepping motor is in a zero position, the tension spring and the pressure spring are in a natural state, and the thread cutting device does not work;
when a motor shaft of the stepping motor drives the swinging part to rotate clockwise, the swinging part drives the first connecting rod to move left and right first, the first connecting rod drives the upper end of the thread trimming mechanism to move left and right first, the lower end of the thread trimming mechanism to move right and left first, the thread trimming mechanism drives the scissors to move right and left first through the second connecting rod, the thread trimming mechanism drives the third connecting rod to move down and up first, the third connecting rod drives the left end of the presser foot swing part to move down and up first, the right end of the presser foot swing part to move up and down first, at the moment, the tension spring is stretched and then shrunk, the presser foot drives the presser foot pressing plate to move up and down first through the first connecting rod and the second connecting rod, and at the moment, the pressure spring is shrunk and stretched first;
when the motor shaft of the stepping motor drives the swinging part to rotate anticlockwise, the movement direction is opposite to that of the clockwise rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363851.9A CN114164577B (en) | 2021-11-17 | 2021-11-17 | Thread trimming and presser foot device for stepping button sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111363851.9A CN114164577B (en) | 2021-11-17 | 2021-11-17 | Thread trimming and presser foot device for stepping button sewing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114164577A true CN114164577A (en) | 2022-03-11 |
| CN114164577B CN114164577B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111363851.9A Active CN114164577B (en) | 2021-11-17 | 2021-11-17 | Thread trimming and presser foot device for stepping button sewing machine |
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| CN (1) | CN114164577B (en) |
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| CN110528184A (en) * | 2019-10-16 | 2019-12-03 | 浙江美机缝纫机有限公司 | The thread-trimming lifter-presser foot mechanism of sewing machine |
| CN111188131A (en) * | 2018-11-14 | 2020-05-22 | 德利姆股份责任有限公司 | Sewing machine for forming seams in a planned, measured and controlled manner |
| CN112048846A (en) * | 2020-09-08 | 2020-12-08 | 拓卡奔马机电科技有限公司 | Motor-driven lifting and pressing wire shearing mechanism of button sewing machine |
| CN112391745A (en) * | 2019-08-17 | 2021-02-23 | 杰克缝纫机股份有限公司 | Presser foot lifting and trimming driving structure of sewing machine and control method thereof |
| CN112391746A (en) * | 2020-10-30 | 2021-02-23 | 浙江广和缝纫机有限公司 | Presser foot lifting and trimming device of overedger |
| CN212714048U (en) * | 2020-05-27 | 2021-03-16 | 琦星智能科技股份有限公司 | Hemming machine's trimming and lift presser foot mechanism and hemming machine |
| CN214088916U (en) * | 2020-12-03 | 2021-08-31 | 周善足 | Button sewing machine and lift presser foot mechanism thereof |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3420199A (en) * | 1965-05-28 | 1969-01-07 | Reece Corp | Combination presser foot and thread cut-off |
| CN101550643A (en) * | 2008-03-31 | 2009-10-07 | Juki株式会社 | Backfolding tailoring control device of tailoring device |
| CN106988032A (en) * | 2017-05-23 | 2017-07-28 | 拓卡奔马机电科技有限公司 | Automatic needle-foot-lifting mechanism and button-sewing machine |
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| CN111188131A (en) * | 2018-11-14 | 2020-05-22 | 德利姆股份责任有限公司 | Sewing machine for forming seams in a planned, measured and controlled manner |
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| CN212714048U (en) * | 2020-05-27 | 2021-03-16 | 琦星智能科技股份有限公司 | Hemming machine's trimming and lift presser foot mechanism and hemming machine |
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| CN214088916U (en) * | 2020-12-03 | 2021-08-31 | 周善足 | Button sewing machine and lift presser foot mechanism thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114164577B (en) | 2023-05-26 |
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