CN219280223U - Sewing machine movable knife structure and thread cutting device thereof - Google Patents
Sewing machine movable knife structure and thread cutting device thereof Download PDFInfo
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- CN219280223U CN219280223U CN202222738011.2U CN202222738011U CN219280223U CN 219280223 U CN219280223 U CN 219280223U CN 202222738011 U CN202222738011 U CN 202222738011U CN 219280223 U CN219280223 U CN 219280223U
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Abstract
The utility model provides a sewing machine movable cutter structure, which has simple structure, can cut off a suture and lift a needle thread, effectively avoids redundant thread or nest thread from occurring on sewn clothes, effectively reduces the labor intensity of manpower and improves the labor efficiency while ensuring the quality of the clothes, and comprises a movable cutter body, wherein a first cutting edge is arranged on the movable cutter body, and is characterized in that: the wire pressing device comprises a needle groove and a wire pressing opening, wherein the needle groove corresponds to the falling position of the machine needle when the wire pressing device moves.
Description
Technical Field
The utility model relates to the technical field of sewing equipment, in particular to a sewing machine movable cutter structure and a thread cutting device thereof.
Background
In order to improve the sewing efficiency, an automatic thread cutting device is generally adopted in the sewing equipment, so that the sewing is smooth, thread ends in clothes are reduced, the subsequent finishing efficiency is improved, and because in the sewing process, the existing cutter only cuts a thread after the sewing process is finished, a thread end can be generated on a machine needle when the needle is lifted for the second time to be sewn, the needle lifting thread end is called in the field, in the sewing process, a nest-shaped thread end can be formed on the sewn clothes, the quality of the whole clothes is influenced, and in order to ensure the quality of the clothes, the thread end needs to be manually trimmed, so that the manual strength is increased, and the production efficiency is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a movable cutter structure of a sewing machine, which has a simple structure, can cut off the thread and the needle thread, effectively avoids the occurrence of redundant thread or nest-shaped thread on the sewn clothes, ensures the quality of the clothes, simultaneously effectively reduces the labor intensity of manpower, improves the labor efficiency, and simultaneously provides a thread cutting device.
The technical scheme is as follows: the utility model provides a sewing machine movable knife structure, its includes the movable knife cutter body, be provided with first incision on the movable knife cutter body, its characterized in that: the wire pressing device comprises a needle groove and a wire pressing opening, wherein the needle groove corresponds to the falling position of the machine needle when the wire pressing device moves.
The wire pressing device is further characterized in that the wire pressing device is a second cutter, the wire pressing opening is a second cutting edge, the second cutter comprises a needle groove and the second cutting edge, and when the second cutter moves, the needle groove corresponds to the falling position of the machine needle; the movable cutter body and the wire pressing device are integrally formed; the needle groove is an open groove; the needle groove is a closed groove; the needle groove is an arc groove; the movable cutter body comprises a thread buckling head, and a thread buckling groove is formed in the thread buckling head.
A wire cutting device, characterized in that: the sewing machine comprises a sewing machine movable cutter structure, wherein a first fixed cutter and a second fixed cutter are respectively arranged at two sides of the sewing machine movable cutter structure, the first fixed cutter corresponds to a first incision, and the second fixed cutter corresponds to a line pressing opening; the sewing machine movable knife structure is positioned between the second fixed knife and the thread pressing plate when moving to the second fixed knife position.
According to the scheme, as the thread pressing device is arranged corresponding to the first incision, the thread pressing device comprises the needle groove and the thread pressing opening, when the thread pressing device moves, the needle groove corresponds to the falling position of the machine needle, the thread pressing opening on the thread pressing device is matched with the thread pressing block to press the needle-lifting thread head, so that the occurrence of bird nest-shaped thread heads on the sewn clothes is effectively avoided, the quality of the clothes is ensured, the labor intensity of workers is effectively reduced, and the labor efficiency is improved.
Drawings
FIG. 1 is a schematic view of the structure of a sewing machine knife according to the present utility model;
FIG. 2 is a schematic view of a sewing machine knife structure of an open slot;
FIG. 3 is a schematic view of a wire cutting apparatus according to the present utility model;
FIG. 4 is a schematic diagram showing a state that a movable cutter body is separated from a second cutter in the structure of the movable cutter of the sewing machine;
fig. 5 is a schematic diagram of a wire pressing plate structure.
Detailed Description
See fig. 1, fig. 2, a sewing machine movable cutter structure, it includes moves the cutter body 1, moves the cutter body 1 and includes knot thread end 2, is provided with knot wire casing 3 on detaining the thread end 2, moves and is provided with first incision 4 on the cutter body 1, corresponds first incision 4 and is provided with line ball device 5, and line ball device 5 includes needle groove 6 and line ball mouth 7, cuts off the suture through first incision, presses tightly the play thread end through line ball mouth cooperation, effectively avoids having bird's nest form thread to appear on the clothing of making up, when having guaranteed the clothing quality, has effectively reduced artificial intensity of labour, improves labor efficiency.
The line ball device 5 is the second cutter, and the line ball mouth 7 is the second cutting edge, and the second cutter 5 includes needle groove 6 and second cutting edge 7, and when the second cutter 5 moved, the needle groove 6 corresponded the whereabouts position of machine needle, cut off the play needle thread head through the cooperation of second cutter mouth, effectively avoided making up to have bird's nest form thread head to appear on the clothing, cut off unnecessary thread head simultaneously, when having guaranteed the clothing quality, effectively reduced artificial intensity of labour, improved labor efficiency.
The movable cutter body 1 and the wire pressing device 5 are integrally formed, and the wire pressing device is arranged on the movable cutter body, so that the processing technology is effectively reduced, and the wire cutting effect of the cutter can be ensured.
The needle groove can be an open groove or a closed groove, and the needle groove adopts an arc groove, so that the suture moves smoothly in the needle groove, the movement resistance of the suture is reduced, the suture is prevented from falling out of the cutter body by adopting the closed groove, and the stability of the thread clamping and the thread cutting is ensured.
See fig. 3 and 5, a thread cutting device, which comprises a sewing machine movable cutter structure 8, wherein a first fixed cutter 9 and a second fixed cutter 10 are respectively arranged at two sides of the corresponding sewing machine movable cutter structure 8, a thread pressing plate 11 is arranged corresponding to the second fixed cutter 10, and when the sewing machine movable cutter structure 8 moves to the position of the second fixed cutter 10, the flat sewing machine movable cutter structure 8 is positioned between the second fixed cutter 10 and the thread pressing plate 11, so that a suture is ensured to be pressed by a pressing plate, and the suture is prevented from falling. The flat sewing machine movable knife structure can also be positioned outside the thread pressing plate.
One end of the line pressing plate 11 is inclined 14, the structure of the line pressing plate can be inclined to two sides, the line pressing plate end is arc-shaped, smooth movement of a suture is guaranteed, and the other end of the line pressing plate is provided with a long groove 13, so that transverse adjustment of the pressing plate is achieved.
The working principle of the thread cutting device of the utility model is described below with reference to the accompanying drawings:
when the sewing starts, the first needle moves downwards, the needle is positioned at the needle falling point 12, when the first needle rises, the suture is hooked by the rotating shuttle, when the needle continues to rise to the left and right of the needle plate position, the sewing machine movable cutter structure 8 moves towards the arrow A direction under the drive of the driving device, the thread pressing plate 11 clamps the needle lifting thread ends, the sewing machine movable cutter structure 8 continues to move towards the arrow A direction, the second fixed cutter 10 is matched with the second knife edge 7, the needle lifting thread ends are sheared, redundant thread ends or nest-shaped thread ends are prevented from being generated, when the sewing ends, the sewing machine movable cutter structure 8 moves towards the arrow B direction under the drive of the driving device, the first fixed cutter 9 is matched with the first knife edge 4, the sewing thread ends are sheared, automatic thread cutting is realized, and the suture efficiency is improved.
According to the thread cutting device, the first knife edge and the second knife edge are moved simultaneously by the aid of the driving device, different threads are cut through cooperation of the thread cutting device and fixed knives in different directions, the structure is simpler, production efficiency of equipment is improved, and production cost of the equipment is effectively reduced.
In the utility model, the mounting positions of the first fixed knife, the second fixed knife and the line pressing plate are on a frame or other fixing devices.
In this embodiment, the movable cutter body and the second cutter (wire pressing device) are integrally formed, the first cutter edge is disposed on the movable cutter body, the movable cutter body and the second cutter (wire pressing device) are disposed on the cutter frame, and the movable cutter body and the second cutter (wire pressing device) move simultaneously through the movement of the cutter frame, but the structure can also be shown in fig. 4, and is a separate structure of the movable cutter body and the second cutter (wire pressing device), then the movable cutter body and the second cutter (wire pressing device) are disposed on the cutter frame, and the movable cutter body and the second cutter (wire pressing device) move simultaneously through the movement of the cutter frame.
In the utility model, the second cutter also has the function of line pressing, namely the second cutter can not cut off redundant line heads, but has the function of preventing bird nest generation, so the second cutter has the function of line pressing during line pressing, and can not generate tangential effect, but is described as the second cutter for the sake of simplicity and convenience of file description, and if a briquetting structure is adopted, the second cutter structure is actually described by the utility model, and the protection scope of the utility model is also of course.
The present utility model and its embodiments have been described above by way of illustration and not limitation, and the embodiments of the present utility model shown in the drawings are not limited thereto, and the actual structures are not intended to be within the scope of the present utility model unless they depart from the spirit of the utility model.
Claims (9)
1. The utility model provides a sewing machine movable knife structure, its includes the movable knife cutter body, be provided with first incision on the movable knife cutter body, its characterized in that: the wire pressing device comprises a needle groove and a wire pressing opening, wherein the needle groove corresponds to the falling position of the machine needle when the wire pressing device moves.
2. A sewing machine knife structure as claimed in claim 1, wherein: the wire pressing device is a second cutter, the wire pressing opening is a second cutting edge, the second cutter comprises a needle groove and a second cutting edge, and when the second cutter moves, the needle groove corresponds to the falling position of the machine needle.
3. A sewing machine knife structure as claimed in claim 1, wherein: the movable cutter body and the line pressing device are integrally formed.
4. A sewing machine knife structure as claimed in claim 1, wherein: the needle groove is an open groove.
5. A sewing machine knife structure as claimed in claim 1, wherein: the needle groove is a closed groove.
6. A sewing machine knife structure as claimed in claim 1, wherein: the needle groove is an arc groove.
7. A sewing machine knife structure as claimed in claim 1, wherein: the movable cutter body comprises a thread buckling head, and a thread buckling groove is formed in the thread buckling head.
8. A wire cutting device, characterized in that: comprising a sewing machine movable knife structure according to any one of claims 1-7, wherein a first stationary knife and a second stationary knife are respectively arranged on two sides of the sewing machine movable knife structure.
9. A wire cutting apparatus as defined in claim 8, wherein: the sewing machine movable knife structure is positioned between the second fixed knife and the thread pressing plate when moving to the second fixed knife position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222738011.2U CN219280223U (en) | 2022-10-18 | 2022-10-18 | Sewing machine movable knife structure and thread cutting device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222738011.2U CN219280223U (en) | 2022-10-18 | 2022-10-18 | Sewing machine movable knife structure and thread cutting device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219280223U true CN219280223U (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222738011.2U Active CN219280223U (en) | 2022-10-18 | 2022-10-18 | Sewing machine movable knife structure and thread cutting device thereof |
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| CN (1) | CN219280223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024083070A1 (en) * | 2022-10-18 | 2024-04-25 | 无锡品益缝纫机有限公司 | Sewing machine movable blade structure, thread cutting device, thread cutting method, control program of thread cutting method, and sewing machine |
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2022
- 2022-10-18 CN CN202222738011.2U patent/CN219280223U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024083070A1 (en) * | 2022-10-18 | 2024-04-25 | 无锡品益缝纫机有限公司 | Sewing machine movable blade structure, thread cutting device, thread cutting method, control program of thread cutting method, and sewing machine |
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