CN220503402U - Short thread end structure of computer roller car and sewing machine - Google Patents
Short thread end structure of computer roller car and sewing machine Download PDFInfo
- Publication number
- CN220503402U CN220503402U CN202321825911.9U CN202321825911U CN220503402U CN 220503402 U CN220503402 U CN 220503402U CN 202321825911 U CN202321825911 U CN 202321825911U CN 220503402 U CN220503402 U CN 220503402U
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- China
- Prior art keywords
- control assembly
- connecting rod
- shaft
- roller car
- cam connecting
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- 238000009958 sewing Methods 0.000 title claims abstract description 23
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a short thread end structure of a computer roller car and a sewing machine, belongs to the technical field of sewing machine accessories, and solves the problems that more and longer thread ends are always left, if people need to remove thread ends on a sewn fabric, the thread ends are always needed to be trimmed through a thread cutting pliers in a manual mode, and aiming at the current situation of industrial production, the operation is repeated and then the labor force and the working time are wasted. The automatic rotary shuttle device comprises a kettle shaft, a rotary shuttle fixedly connected to the top end of the kettle shaft, and a control assembly for controlling the kettle shaft and the rotary shuttle to rotate, wherein the control assembly is in transmission connection with the kettle shaft and is electrically powered on and off, and when the control assembly is switched from an electrified state to an outage state, the kettle shaft and the rotary shuttle rotate for a certain angle. The utility model can control the kettle shaft and the rotating shuttle, so that the kettle shaft and the rotating shuttle drive the thread end to rotate at a certain angle after finishing sewing, and then the longer thread end can not appear when the kettle shaft and the rotating shuttle cut by the fixed knife and the movable knife.
Description
Technical Field
The utility model relates to the technical field of sewing machine accessories, in particular to a short thread end structure of a computer roller car and a sewing machine.
Background
At present, a roller car structure in the existing sewing machine often leaves more and longer thread ends after the sewing machine is used for sewing, if people need to remove the thread ends on the sewn fabric, the people often need to trim the thread ends through a pair of thread cutting pliers in a manual mode, and the problem that labor force and working time are consumed after the operation is repeated and repeated is solved for the current situation of industrial production.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a short thread end structure of a computer roller car and a sewing machine.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a computer roller car stub structure, includes cauldron axle, fixed connection at the rotating shuttle on its top, still includes the control assembly of control cauldron axle and rotating shuttle gyration, control assembly is connected with the cauldron axle transmission, just control assembly break-make electricity sets up, works as control assembly switches to the outage state from the switch-on state, cauldron axle and rotating shuttle gyration certain angle.
Preferably, the control assembly comprises a gear seat, a driving gear rotationally connected to the gear seat and a shaft gear fixedly connected to the kettle shaft, wherein residual teeth are arranged on the driving gear and are in meshed connection with the shaft gear, and the arc angle of the residual teeth is smaller than 180 degrees.
Preferably, the number of the stub teeth is smaller than the number of the shaft gears.
Preferably, the control assembly comprises a cam block, a cam connecting rod, a wire cutting seat and a swinging rod, wherein the cam block is fixedly connected to the peripheral wall of the driving gear, one end of the cam connecting rod is rotationally connected with the cam block, the swinging rod is rotationally connected to the wire cutting seat, the other end of the swinging rod is rotationally connected with the cam connecting rod, and the cam connecting rod is displaced in the length direction of the cam connecting rod.
Preferably, the control assembly further comprises an extension rod made of metal and an electromagnet, the extension rod is fixedly connected to the cam connecting rod and is arranged opposite to the electromagnet, when the electromagnet is in an electrified state, the extension rod drives the cam connecting rod to move towards the direction where the driving gear is located, and when the electromagnet is switched from the electrified state to the power-off state, the cam connecting rod moves towards one side of the swinging rod.
The utility model also provides a sewing machine, which comprises a shell and the short thread end structure of the computer roller car.
The utility model has the following beneficial effects:
the utility model can control the kettle shaft and the rotating shuttle, so that the kettle shaft and the rotating shuttle drive the thread end to rotate at a certain angle after finishing sewing, and then the longer thread end can not appear when the kettle shaft and the rotating shuttle cut by the fixed knife and the movable knife.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a short end structure of a roller car according to the present utility model;
FIG. 3 is a schematic diagram of a shorting head structure of a roller car of the present utility model;
fig. 4 is a bottom view of the driving gear and the shaft gear according to the present utility model.
In the figure: 1. a housing; 2. a thread cutting seat; 3. a swinging rod; 4. a cam link; 5. an extension rod; 6. a gear seat; 7. a drive gear; 8. a shaft gear; 9. a kettle shaft; 10. a rotating shuttle; 11. an electromagnet; 12. residual teeth.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
The utility model provides a computerized roller car stub structure, as shown in fig. 2 and 3, includes cauldron axle 9, fixed connection in the rotating shuttle 10 on its top, still includes the control assembly that control cauldron axle 9 and rotating shuttle 10 revolve, and control assembly is connected with cauldron axle 9 transmission, and control assembly break-make electricity sets up, when control assembly switched from the switch-on state to the outage state, cauldron axle 9 and rotating shuttle 10 revolve certain angle.
The control assembly comprises a gear seat 6, a driving gear 7 rotationally connected to the gear seat 6, a shaft gear 8 fixedly connected to a kettle shaft 9, a cam block, a cam connecting rod 4, a wire cutting seat 2, a swinging rod 3, a metal extension rod 5 and an electromagnet 11, as shown in fig. 4, residual teeth 12 exist on the driving gear 7, the residual teeth 12 are meshed with the shaft gear 8, the arc angle of the residual teeth 12 is smaller than 180 degrees, the number of the residual teeth 12 is smaller than the number of the teeth of the shaft gear 8, more specifically, the number of the residual teeth 12 is 22, the number of the teeth of the shaft gear 8 is 34, the cam block is fixedly connected to the peripheral wall of the driving gear 7, one end of the cam connecting rod 4 is rotationally connected with the cam block, the swinging rod 3 is rotationally connected to the wire cutting seat 2, the other end of the swinging rod 3 is rotationally connected with the cam connecting rod 4, the extension rod 5 is fixedly connected to the cam connecting rod 4 and is arranged opposite to the electromagnet 11, when the electromagnet 11 is in an on-state, the extension rod 5 drives the cam connecting rod 4 to move towards the direction of the driving gear 7, and the electromagnet 11 is switched from the on-state to the off state, and the cam connecting rod 4 moves towards one side of the cam connecting rod 4 when the cam connecting rod is in the on-side of the on-state, and the length of the cam connecting rod 4 is displaced towards the side of the cam connecting rod 4.
A sewing machine, as shown in figure 1, comprises a machine shell 1 and the above short thread end structure of a computer roller car arranged in the machine shell.
When people need to use the sewing machine, namely the computer roller car stub structure is needed, in the process, people can control the foot switch according to the pedal action, and the foot switch is connected to the on-off circuit of the electromagnet 11, so that when people pedal the foot switch, the electromagnet 11 can be electrified, and if people loosen the pedal action of the foot switch, the electromagnet 11 is also powered off.
Then, if the electromagnet 11 is electrified, a magnetic force is generated, and the extension rod 5 which attracts the metal material is close to the electromagnet, at this time, the extension rod 5 drives the cam connecting rod 4 to displace toward the electromagnet 11 together, that is, the extension rod 5 drives the cam connecting rod 4 to displace toward the driving gear 7 together, at this time, the cam connecting rod 4 pushes the cam block at one end of the driving gear 7, so that the driving gear 7 is driven by the cam block to perform angular deflection on the gear seat 6, and the residual tooth 12 of the driving gear 7 is meshed with the shaft gear 8, so that the shaft gear 8 also performs angular rotation when the driving gear 7 deflects, and because the sewing machine and the short thread head structure of the computer roller car perform sewing work, the sewing thread is in a wire-out state, and the sewing thread cannot be affected in the length direction under the electrified state of the electromagnet 11.
When the electromagnet 11 is powered off, the magnetic force of the electromagnet is disappeared, a spring can be arranged between the extension rod 5 and the electromagnet 11, after the magnetic force is disappeared, the spring is restored to the original state, the extension rod 5 and the cam connecting rod 4 are pushed to reversely displace, the driving gear 7 is continuously driven to rotate on the gear seat 6 by the cam block, the shaft gear 8 is rotated by the rotation at the moment, the kettle shaft 9 is rotated, the rotary shuttle 10 is driven to rotate by the kettle shaft 9 finally, the rotary shuttle 10 can drive the sewing thread to recover a certain length, and therefore, the length of the thread head left when the sewing thread is cut by the fixed knife and the movable knife in the sewing machine can be kept in a short state, and people do not need to manually cut.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a computer roller car stub structure, its characterized in that includes cauldron axle (9), fixed connection in rotating shuttle (10) on its top, still includes the control assembly of control cauldron axle (9) and rotating shuttle (10) gyration, control assembly is connected with cauldron axle (9) transmission, just control assembly break-make electricity sets up, works as control assembly switches to the outage state from the switch-on state, cauldron axle (9) and rotating shuttle (10) gyration certain angle.
2. The computerized roller car stub structure according to claim 1, wherein the control assembly comprises a gear seat (6), a driving gear (7) rotatably connected to the gear seat (6), and a shaft gear (8) fixedly connected to a kettle shaft (9), a residual tooth (12) is arranged on the driving gear (7), the residual tooth (12) is meshed with the shaft gear (8), and the arc angle of the residual tooth (12) is smaller than 180 °.
3. A computer roller car stub structure according to claim 2, characterized in that the number of the stub teeth (12) is smaller than the number of the shaft gears (8).
4. The computerized roller car stub structure according to claim 2, wherein the control assembly comprises a cam block, a cam connecting rod (4), a wire cutting seat (2) and a swinging rod (3), wherein the cam block is fixedly connected to the peripheral wall of the driving gear (7), one end of the cam connecting rod (4) is rotationally connected with the cam block, the swinging rod (3) is rotationally connected to the wire cutting seat (2), the other end of the swinging rod (3) is rotationally connected with the cam connecting rod (4), and the cam connecting rod (4) is displaced in the length direction.
5. The computer roller car stub structure according to claim 4, wherein the control assembly further comprises an extension rod (5) made of metal and an electromagnet (11), the extension rod (5) is fixedly connected to the cam connecting rod (4) and is opposite to the electromagnet (11), when the electromagnet (11) is in an electrified state, the extension rod (5) drives the cam connecting rod (4) to displace towards the direction where the driving gear (7) is located, and when the electromagnet (11) is switched from the electrified state to the power-off state, the cam connecting rod (4) displaces towards one side of the swinging rod (3).
6. A sewing machine, characterized by comprising a casing (1), and a computerized roller car stub structure according to any one of claims 1-5 mounted therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321825911.9U CN220503402U (en) | 2023-07-12 | 2023-07-12 | Short thread end structure of computer roller car and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321825911.9U CN220503402U (en) | 2023-07-12 | 2023-07-12 | Short thread end structure of computer roller car and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220503402U true CN220503402U (en) | 2024-02-20 |
Family
ID=89866939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321825911.9U Active CN220503402U (en) | 2023-07-12 | 2023-07-12 | Short thread end structure of computer roller car and sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220503402U (en) |
-
2023
- 2023-07-12 CN CN202321825911.9U patent/CN220503402U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |