CN210529222U - Novel thread trimming mechanism for sewing machine - Google Patents
Novel thread trimming mechanism for sewing machine Download PDFInfo
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- CN210529222U CN210529222U CN201921038583.1U CN201921038583U CN210529222U CN 210529222 U CN210529222 U CN 210529222U CN 201921038583 U CN201921038583 U CN 201921038583U CN 210529222 U CN210529222 U CN 210529222U
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- sewing machine
- needle
- trimming mechanism
- scissors
- thread trimming
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Abstract
The utility model discloses a be used for novel thread trimming mechanism of sewing machine relates to the sewing machine field, draws together the sewing machine main part, the tip of sewing machine main part is provided with the needle bar, one side of needle bar is equipped with the spring beam, the center department of needle bar has cup jointed the fixed block, the connecting block has been cup jointed jointly to the bottom of needle bar and spring beam, it has the needle cover to peg graft in the connecting block, the needle inslot is equipped with the syringe needle. The utility model discloses a thereby the trimming mechanism who sets up can step on through the foot and press the footboard and pass through drive mechanism's drive and make the scissors closed and accomplish the trimming operation, it is more convenient and quick to compare traditional cutting with the manual scissors, can not take place simultaneously because of losing the scissors, and lead to the unable disconnected condition of needlework, the footboard passes through the connecting rod and drives the knee lever and rotate, and then make first bevel gear drive second conical gear motion, thereby it drives opening and shutting of push-pull rod reciprocating telescopic motion realization control scissors through the stand after the carousel rotates, accomplish the trimming.
Description
Technical Field
The utility model relates to a sewing machine field specifically is a be used for novel thread trimming mechanism of sewing machine.
Background
A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material.
The thread cutting of the sewing machine is mostly carried out by adopting the edible manual scissors, so that the speed is low, and the thread can not be cut off when the scissors are lost. Accordingly, those skilled in the art have provided a novel thread trimming mechanism for a sewing machine to solve the problems set forth in the background art described above.
Disclosure of Invention
An object of the utility model is to provide a be used for novel thread trimming mechanism of sewing machine to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be used for novel thread trimming mechanism of sewing machine, includes the sewing machine main part, the tip of sewing machine main part is provided with the needle bar, one side of needle bar is equipped with the spring beam, the center department of needle bar has cup jointed the fixed block, the connecting block has cup jointed jointly in the bottom of needle bar and spring beam, it has the needle cover to peg graft in the connecting block, the needle inslot is equipped with the syringe needle, the side of needle cover is equipped with fastening screw, sewing machine main part below is equipped with the workstation, the bottom of workstation is equipped with the transmission case, one side of transmission case is run through and is equipped with the curved bar, the connecting rod has been cup jointed to the one end of curved bar.
As a further aspect of the present invention: the rear end of the connecting block is provided with a presser foot, a through groove is formed in the presser foot, the needle head is located at the center of the through groove, scissors are arranged above the presser foot and on two sides of the needle head, and a fixing seat is arranged at the rear end of each scissors.
As a further aspect of the present invention: the side of the scissors is connected with a push-pull rod, the push-pull rod is sleeved with a sleeve, a fixing piece is welded on the side of the sleeve, and the fixing piece is fixed with the workbench.
As a further aspect of the present invention: the tail end of the push-pull rod is connected with a connecting rod through a pin, the tail end of the connecting rod is connected with an upright post through a pin, the bottom end of the upright post is connected with a turntable, and the upright post is located at the position, deviated from the circle center, of the top of the turntable.
As a further aspect of the present invention: a connecting column is arranged at the center of a circle at the bottom end of the rotary table, a second bevel gear is welded at the bottom end of the connecting column, and a first bevel gear is meshed at one side of the second bevel gear
As a further aspect of the present invention: the center of a circle of the first bevel gear is connected with a rotating shaft, and the rotating shaft is connected with the tail end of the curved rod.
As a further aspect of the present invention: the workbench is provided with a through hole, and the stand column penetrates through the through hole to be connected with the connecting rod pin.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a thereby the trimming mechanism who sets up can step on through the foot and press the footboard and pass through drive mechanism's drive and make the scissors closed and accomplish the trimming operation, it is more convenient and quick to compare traditional cutting with the manual scissors, can not take place simultaneously because of losing the scissors, and lead to the unable disconnected condition of needlework, the footboard passes through the connecting rod and drives the knee lever and rotate, and then make first bevel gear drive second conical gear motion, thereby it drives opening and shutting of push-pull rod reciprocating telescopic motion realization control scissors through the stand after the carousel rotates, accomplish the trimming.
Drawings
FIG. 1 is a schematic structural view of a novel thread trimming mechanism for a sewing machine;
FIG. 2 is an enlarged schematic view of the thread trimming mechanism of the sewing machine at the A position;
fig. 3 is a schematic diagram of the internal structure of a transmission case of the novel thread trimming mechanism for the sewing machine.
In the figure: 1. a sewing machine main body; 2. a spring lever; 3. a needle bar; 4. a fixed block; 5. connecting blocks; 6. fastening screws; 7. a presser foot; 8. a work table; 9. a transmission case; 10. a curved bar; 11. a pedal; 12. a needle sleeve; 13. scissors; 14. a needle head; 15. a sleeve; 16. a column; 17. a fixed seat; 18. a push-pull rod; 19. a fixing sheet; 20. a connecting rod; 21. a through hole; 22. a first bevel gear; 23. a rotating shaft; 24. a turntable; 25. connecting columns; 26. a second bevel gear; 27. a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-3, in the embodiment of the present invention, a novel thread trimming mechanism for a sewing machine, including sewing machine main body 1, the tip of sewing machine main body 1 is provided with needle bar 3, one side of needle bar 3 is equipped with spring beam 2, the center department of needle bar 3 has cup jointed fixed block 4, connecting block 5 has been cup jointed jointly to the bottom of needle bar 3 and spring beam 2, peg graft in connecting block 5 has needle cover 12, be equipped with syringe needle 14 in the needle cover 12, the side of needle cover 12 is equipped with fastening screw 6, sewing machine main body 1 below is equipped with workstation 8, the bottom of workstation 8 is equipped with transmission case 9, one side of transmission case 9 is run through and is equipped with curved bar 10, connecting rod 27 has been cup jointed to the one end of curved bar 10, the end of.
A presser foot 7 is arranged at the rear end of the connecting block 5, a through groove is formed in the presser foot 7, the needle 14 is located at the center of the through groove, scissors 13 are arranged above the presser foot 7 and on two sides of the needle 14, a fixing seat 17 is arranged at the rear end of each scissors 13, the presser foot 7 presses cloth to prevent wrinkling, the through groove facilitates the needle 14 to pass through, the scissors 13 are used for breaking threads, and the scissors 13 are fixed by the fixing seat 17;
the side of the scissors 13 is connected with a push-pull rod 18, the push-pull rod 18 is sleeved with a sleeve 15, the side of the sleeve 15 is welded with a fixing piece 19, the fixing piece 19 is fixed with the workbench 8, the push-pull rod 18 makes reciprocating telescopic motion to control the scissors 13 to open and close, the sleeve 15 prevents the push-pull rod 18 from deviating from a track during motion, and the fixing piece 19 is used for fixing the sleeve 15;
the tail end of the push-pull rod 18 is connected with a connecting rod 20 through a pin, the tail end of the connecting rod 20 is connected with an upright post 16 through a pin, the bottom end of the upright post 16 is connected with a rotary table 24, the upright post 16 is positioned at the position, deviating from the center of a circle, of the top of the rotary table 24, the connecting rod 20 is used for changing the rotating force of the upright post 16 into a linear force, so that the push-pull rod 18 makes reciprocating motion, and the rotary table 24 drives the upright post;
a connecting column 25 is arranged at the center of the circle at the bottom end of the rotating disc 24, a second bevel gear 26 is welded at the bottom end of the connecting column 25, a first bevel gear 22 is meshed at one side of the second bevel gear 26, the connecting column 25 is used for fixing the rotating disc 24 on the second bevel gear 26, and the second bevel gear 26 changes the vertical rotating force into a horizontal rotating force;
the center of the circle of the first bevel gear 22 is connected with a rotating shaft 23, the rotating shaft 23 is connected with the tail end of the curved rod 10, the curved rod 10 rotates through the rotating shaft 23 to drive the first bevel gear 22 to rotate, and the second bevel gear 26 can rotate after the first bevel gear 22 rotates;
the workbench 8 is provided with a through hole 21, the upright post 16 passes through the through hole 21 and is in pin connection with the connecting rod 20, and the through hole 21 provides space for the rotation of the upright post 16.
The utility model discloses a theory of operation is: when the needle bar is used, the needle 14 is inserted into the needle sleeve 12 and is fixed by twisting the fastening screw 6, then the operation is the same as that of a normal sewing machine, the needle bar 3 moves up and down to drive the needle 14 to be inserted into cloth, the spring rod 2 prevents the needle bar 3 from moving and transiting, after the sewing is finished, the pedal 11 is stepped by feet, the pedal 11 pulls the curved rod 10 to do circular motion through the connecting rod 27, when the curved rod 10 moves, the first bevel gear 22 is driven to move through the rotating shaft 23, so that the first bevel gear 22 drives the second bevel gear 26 to rotate, the second bevel gear 26 moves to drive the rotary table 24 to rotate through the connecting column 25, the rotary table 24 can drive the upright column 16 at the top of the rotary table to rotate in the through hole 21 on the working table 8, when the upright column 16 rotates, the connecting rod 20 drives the push-pull rod 18 to move, the push-pull rod 18 can only, the opening and closing of scissors 13 are completed to cut the thread.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a be used for novel thread trimming mechanism of sewing machine, includes sewing machine main part (1), its characterized in that: the utility model discloses a sewing machine, including sewing machine main part (1), needle bar (3), spring rod (2) are equipped with to the tip of sewing machine main part (1), fixed block (4) have been cup jointed to the center department of needle bar (3), connecting block (5) have been cup jointed jointly to the bottom of needle bar (3) and spring rod (2), it has needle cover (12) to peg graft in connecting block (5), be equipped with syringe needle (14) in needle cover (12), the side of needle cover (12) is equipped with fastening screw (6), sewing machine main part (1) below is equipped with workstation (8), the bottom of workstation (8) is equipped with transmission case (9), one side of transmission case (9) is run through and is equipped with curved bar (10), connecting rod (27) have been cup jointed to the one end of curved bar (10), the end of connecting rod (27) is equipped with footboard (11).
2. The novel thread trimming mechanism for sewing machines as claimed in claim 1, wherein the rear end of the connecting block (5) is provided with a presser foot (7), a through slot is formed on the presser foot (7), the needle (14) is located at the center of the through slot, scissors (13) are arranged above the presser foot (7) and on two sides of the needle (14), and the rear end of the scissors (13) is provided with a fixing seat (17).
3. The novel thread trimming mechanism for the sewing machine according to claim 2, wherein a push-pull rod (18) is connected to the side of the scissors (13), a sleeve (15) is sleeved on the push-pull rod (18), a fixing plate (19) is welded to the side of the sleeve (15), and the fixing plate (19) is fixed to the workbench (8).
4. The novel thread trimming mechanism for sewing machines as claimed in claim 3, characterized in that the push-pull rod (18) is pinned with a connecting rod (20) at its end, the connecting rod (20) is pinned with a column (16) at its end, the column (16) is pinned with a turntable (24) at its bottom end, and the column (16) is located at the top of the turntable (24) at a position offset from the center of the circle.
5. The novel thread trimming mechanism for the sewing machine according to claim 4, wherein a connecting column (25) is arranged at the center of the bottom end of the rotary table (24), a second bevel gear (26) is welded at the bottom end of the connecting column (25), and a first bevel gear (22) is meshed at one side of the second bevel gear (26).
6. The novel thread trimming mechanism for sewing machines as claimed in claim 5, characterized in that the first bevel gear (22) is connected with a rotating shaft (23) at the center of the circle, and the rotating shaft (23) is connected with the end of the curved bar (10).
7. The novel thread trimming mechanism for sewing machines as claimed in claim 4, characterized in that the worktable (8) is provided with a through hole (21), and the column (16) is pin-connected with the connecting rod (20) through the through hole (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921038583.1U CN210529222U (en) | 2019-07-05 | 2019-07-05 | Novel thread trimming mechanism for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921038583.1U CN210529222U (en) | 2019-07-05 | 2019-07-05 | Novel thread trimming mechanism for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210529222U true CN210529222U (en) | 2020-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921038583.1U Active CN210529222U (en) | 2019-07-05 | 2019-07-05 | Novel thread trimming mechanism for sewing machine |
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| Country | Link |
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| CN (1) | CN210529222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111705441A (en) * | 2020-06-18 | 2020-09-25 | 冷伟峰 | Automatic trimming and automatic clearing thread trimming mechanism of sewing machine |
| CN113969469A (en) * | 2021-10-13 | 2022-01-25 | 孙志平 | Double-needle vertical sewing machine |
-
2019
- 2019-07-05 CN CN201921038583.1U patent/CN210529222U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111705441A (en) * | 2020-06-18 | 2020-09-25 | 冷伟峰 | Automatic trimming and automatic clearing thread trimming mechanism of sewing machine |
| CN113969469A (en) * | 2021-10-13 | 2022-01-25 | 孙志平 | Double-needle vertical sewing machine |
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