CN115434083A - Sewing machine movable cutter structure and thread cutting device thereof - Google Patents
Sewing machine movable cutter structure and thread cutting device thereof Download PDFInfo
- Publication number
- CN115434083A CN115434083A CN202211272392.8A CN202211272392A CN115434083A CN 115434083 A CN115434083 A CN 115434083A CN 202211272392 A CN202211272392 A CN 202211272392A CN 115434083 A CN115434083 A CN 115434083A
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- Prior art keywords
- cutter
- sewing machine
- thread
- needle
- knife
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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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention provides a movable cutter structure of a sewing machine, which has a simple structure, can cut off stitches and raised thread ends, effectively avoids redundant thread ends or bird's nest-shaped thread ends on the sewn clothes, effectively reduces the labor intensity of workers and improves the labor efficiency while ensuring the quality of the clothes, and comprises a movable cutter body, wherein a first cutter edge is arranged on the movable cutter body, and the movable cutter structure is characterized in that: and a line pressing device is arranged corresponding to the first incision, the line pressing device comprises a needle groove and a line pressing opening, and the needle groove corresponds to the falling position of the machine needle when the line pressing device moves.
Description
Technical Field
The invention relates to the technical field of sewing equipment, in particular to a movable cutter structure of a sewing machine and a thread cutting device thereof.
Background
In order to improve the sewing efficiency, an automatic thread cutting device is usually adopted in sewing equipment, so that sewing is smooth, thread ends in clothes are reduced, and the subsequent finishing efficiency is improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a movable cutter structure of a sewing machine, which is simple in structure, can cut off stitches and raised stitch ends, effectively avoids redundant stitch ends or bird's nest-shaped stitch ends on sewn clothes, effectively reduces the labor intensity of workers and improves the labor efficiency while ensuring the quality of the clothes.
The technical scheme is as follows: the utility model provides a sewing machine moving knife structure, its is including moving the sword cutter body, it is provided with first incision, its characterized in that on the sword cutter body to move: and a line pressing device is arranged corresponding to the first incision, the line pressing device comprises a needle groove and a line pressing opening, and the needle groove corresponds to the falling position of the machine needle when the line pressing device moves.
The automatic sewing machine is further characterized in that the thread pressing device is a second cutter, the thread pressing opening is a second cutter opening, the second cutter comprises a needle groove and a second cutter opening, and the needle groove corresponds to the falling position of the machine needle when the second cutter moves; the movable cutter body and the line 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 apparatus, characterized by: the movable cutter structure of the sewing machine comprises a movable cutter structure of the sewing machine, wherein a first fixed cutter and a second fixed cutter are respectively arranged on two sides of the movable cutter structure of the sewing machine, the first fixed cutter corresponds to a first cutter edge, and the second fixed cutter corresponds to a thread pressing opening; and a thread pressing plate is arranged corresponding to the second fixed knife, and when the movable sewing knife structure moves to the position of the second fixed knife, the movable sewing knife structure is positioned between the second fixed knife and the thread pressing plate.
By adopting the scheme, the line pressing device is arranged corresponding to the first cutter edge and comprises the needle groove and the line pressing port, when the line pressing device moves, the needle groove corresponds to the falling position of the machine needle, and the line pressing port on the line pressing device is matched with the line pressing block to press the needle-raising line head, so that the bird nest-shaped line head 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 movable blade of the sewing machine according to the present invention;
FIG. 2 is a structural diagram of a moving blade of a sewing machine with an open slot;
FIG. 3 is a schematic view of a thread cutting apparatus according to the present invention;
FIG. 4 is a schematic view showing the state of the movable knife body and the second knife in the movable knife structure of the sewing machine according to the present invention;
fig. 5 is a schematic structural diagram of the wire pressing plate.
Detailed Description
See fig. 1, fig. 2, a sewing machine dynamic knife structure, it is including moving the sword cutter body 1, it includes thread buckling head 2 to move the sword cutter body 1, be provided with thread buckling groove 3 on the thread buckling head 2, it is provided with first incision 4 on the sword cutter body 1 to move, it is provided with cord grip 5 to correspond first incision 4, cord grip 5 includes needle groove 6 and line ball 7, cut off the suture through first incision, compress tightly the leading needle thread head through the line ball cooperation, effectively avoid having nest-like end of a thread to appear on the clothing that has made, when having guaranteed the clothing quality, artificial intensity of labour has effectively been reduced, improve labor efficiency.
Move sword cutter body 1 and cord grip 5 integrated into one piece, the cord grip setting has not only effectively reduced processing technology on moving the sword cutter body, can guarantee the tangent line effect of cutter more.
The needle groove can be an open groove or a closed groove, the needle groove is an arc groove, so that the suture moves smoothly in the needle groove, the movement resistance of the suture is reduced, the closed groove is used for preventing the suture from falling out of the cutter body, and the stability of clamping and cutting the suture is ensured.
Referring to fig. 3 and 5, the thread cutting device comprises a sewing machine moving blade structure 8, a first fixed blade 9 and a second fixed blade 10 are respectively arranged on two sides of the sewing machine moving blade structure 8, a thread pressing plate 11 is arranged on the second fixed blade 10, when the sewing machine moving blade structure 8 moves to the position of the second fixed blade 10, the sewing machine moving blade structure 8 is positioned between the second fixed blade 10 and the thread pressing plate 11, the thread is guaranteed to be pressed by the pressing plate, and the thread is prevented from falling. The moving blade structure of the flat sewing machine can also be positioned outside the thread pressing plate.
The working principle of the thread cutting device of the invention is described in the following with the attached drawings:
referring to fig. 3, when the sewing is started, the first needle moves downwards, the needle is located at a needle drop point 12, when the first needle rises, the sewing thread 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 moving blade structure 8 moves towards the arrow A direction under the driving of the driving device, the thread pressing plate 11 clamps the thread lifting head, the sewing machine moving blade structure 8 continues to move towards the arrow A direction, the second fixed blade 10 is matched with the second knife edge 7 to shear the thread lifting head, so that the generation of redundant thread heads or bird's nest-shaped thread heads is prevented, when the sewing is finished, the sewing machine moving blade structure 8 moves towards the arrow B direction under the driving of the driving device, and the first fixed blade 9 is matched with the first knife edge 4 to shear the thread lifting head, so that the automatic thread cutting is realized, and the sewing efficiency is improved.
The wire cutting device disclosed by the invention has the advantages that the first knife edge and the second knife edge can move simultaneously by adopting a set of driving device, and different wires are cut off by matching with the fixed knives in different directions, so that the structure is simpler, the production efficiency of equipment is improved, and the production cost of the equipment is effectively reduced.
In the invention, the first fixed knife, the second fixed knife and the wire pressing plate are arranged on a rack or other fixing devices.
In this embodiment, the movable knife body and the second knife (wire pressing device) are integrally formed, the first knife edge is disposed on the movable knife body, the movable knife body and the second knife (wire pressing device) are disposed on the knife rest, and the movable knife body and the second knife (wire pressing device) move simultaneously through the movement of the knife rest, but the structure may also be set as shown in fig. 4, in which the movable knife body and the second knife (wire pressing device) are separate structures, and then the movable knife body and the second knife (wire pressing device) are disposed on the knife rest, and the simultaneous movement of the movable knife body and the second knife (wire pressing device) is realized through the movement of the knife rest.
In the invention, the second cutter also has a wire pressing function, but cannot cut off redundant wire ends, but has a function of preventing bird nests from generating, so that the second fixed cutter only has the wire pressing function when in wire pressing of the wire pressing device, and cannot generate a wire cutting effect, but all the second fixed cutters are described as the second fixed cutters for the sake of concise and convenient description of documents, and if a pressing block structure is adopted, the pressing block structure is actually the second fixed cutter structure described in the invention, which is certainly the protection scope of the invention.
The present invention and its embodiments have been described in detail, without limitation, and the accompanying drawings are only one embodiment of the invention, and the actual structure is not limited thereto, so long as those skilled in the art can design the structure and the embodiments similar to the above technical solution without departing from the spirit of the invention.
Claims (9)
1. The utility model provides a sewing machine moves sword structure, its includes moves the sword cutter body, move and be provided with first incision, its characterized in that on the sword cutter body: and a line pressing device is arranged corresponding to the first incision, the line pressing device comprises a needle groove and a line pressing opening, and the needle groove corresponds to the falling position of the machine needle when the line pressing device moves.
2. A sewing machine knife structure according to claim 1, wherein: the line pressing device is a second cutter, the line pressing opening is a second cutter opening, the second cutter comprises a needle groove and a second cutter opening, and when the second cutter moves, the needle groove corresponds to the falling position of the machine needle.
3. A sewing machine knife structure according to claim 1, wherein: move the sword cutter body with cord grip integrated into one piece.
4. The mobile blade structure of sewing machine according to claim 1, characterized in that: the needle groove is an open groove.
5. A sewing machine knife structure according to claim 1, wherein: the needle groove is a closed groove.
6. A sewing machine knife structure according to claim 1, wherein: the needle groove is an arc-shaped groove.
7. A sewing machine knife structure according to 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 apparatus characterized by: the movable cutter structure comprises a first fixed cutter and a second fixed cutter which are arranged on two sides of the movable cutter structure according to any one of claims 1 to 7.
9. A thread cutting apparatus as claimed in claim 8, wherein: and a thread pressing plate is arranged corresponding to the second fixed knife, and when the movable sewing knife structure moves to the position of the second fixed knife, the movable sewing knife structure is positioned between the second fixed knife and the thread pressing plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211272392.8A CN115434083A (en) | 2022-10-18 | 2022-10-18 | Sewing machine movable cutter structure and thread cutting device thereof |
| PCT/CN2023/124710 WO2024083070A1 (en) | 2022-10-18 | 2023-10-16 | Sewing machine movable blade structure, thread cutting device, thread cutting method, control program of thread cutting method, and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211272392.8A CN115434083A (en) | 2022-10-18 | 2022-10-18 | Sewing machine movable cutter structure and thread cutting device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115434083A true CN115434083A (en) | 2022-12-06 |
Family
ID=84250501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211272392.8A Pending CN115434083A (en) | 2022-10-18 | 2022-10-18 | Sewing machine movable cutter structure and thread cutting device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115434083A (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 |
-
2022
- 2022-10-18 CN CN202211272392.8A patent/CN115434083A/en active Pending
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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