CN213328163U - Automatic trimming device driven by motor - Google Patents
Automatic trimming device driven by motor Download PDFInfo
- Publication number
- CN213328163U CN213328163U CN202021831022.XU CN202021831022U CN213328163U CN 213328163 U CN213328163 U CN 213328163U CN 202021831022 U CN202021831022 U CN 202021831022U CN 213328163 U CN213328163 U CN 213328163U
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- motor
- mounting hole
- driving
- driving motor
- wire cutting
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Abstract
The utility model belongs to the technical field of sewing equipment, in particular to a motor-driven automatic thread trimming device; the wire cutting machine comprises a machine shell and a wire cutting mechanism, wherein a driving motor mounting hole is formed in the machine shell, the driving motor is connected to the driving motor mounting hole through a fastener, and a rotating shaft of the driving motor is connected with a cutter shaft of the wire cutting mechanism through a transmission mechanism; the utility model discloses utilize the mounting hole that is used for installing the electro-magnet trimming device's electro-magnet subassembly on the former casing to install driving motor, do not need redesign shell structure, the commonality is good, can solve stock casing and motor trimming device's adaptation problem, driving motor is step motor, and the precision is high, and the noise is little, and the end of a thread is stable, and is little to the influence that seam produced.
Description
The technical field is as follows:
the utility model belongs to the technical field of sewing equipment, refer in particular to an automatic thread trimmer devices of motor drive.
Background art:
the electromagnetic wire shearing device (as shown in fig. 1) comprises a machine shell 1, wherein an electromagnet assembly 3 is arranged on the machine shell 1 through a mounting bracket 2, and the electromagnet assembly 3 drives a wire shearing mechanism to act so as to realize wire shearing. The electromagnetic iron wire shearing structure has the defects of complex structure, complex installation and operation, high noise, unstable wire end, influence on seam starting and the like in actual use.
The invention content is as follows:
the utility model aims at providing a need not improve the casing, the noise is little, the end of a thread is stable, to the little automatic trimming device of motor drive of play seam influence.
The utility model discloses a realize like this:
the utility model provides an automatic trimming device of motor drive, includes casing, trimming mechanism, be provided with the driving motor mounting hole on the casing, the driving motor mounting hole is the electro-magnet mounting hole in the electro-magnet trimming structure, driving motor passes through the fastener and connects on the driving motor mounting hole, driving motor's pivot is passed through drive mechanism and is connected with trimming mechanism's cutter axle.
In the above motor-driven automatic thread trimmer device, the driving motor mounting hole includes a first mounting hole and a second mounting hole, the distance from the center of the first mounting hole and the second mounting hole to the center line of the needle rod is 151 ± 1mm, the center distance between the first mounting hole and the second mounting hole is 41 ± 1mm, and the center of the first mounting hole is located on the axis of the lower shaft; or the center distance between the first mounting hole and the second mounting hole is 36 +/-1 mm, and the distance from the center of the first mounting hole to the axis of the lower shaft is 5 +/-1 mm.
In the above automatic wire cutting device driven by the motor, a motor wire outlet is arranged on the casing, and the motor wire outlet is a wire cutting electromagnet wire outlet in an electromagnet wire cutting structure.
In the above motor-driven automatic wire cutting device, the center distance between the motor outlet and the first mounting hole and the center distance between the motor outlet and the second mounting hole are 126 ± 1mm, and the distance between the center of the motor outlet and the side edge of the casing is 27 ± 1 mm.
In the above motor-driven automatic wire cutting device, the transmission mechanism includes a driving gear and a driven gear, the driving gear is fixedly arranged on a rotating shaft of the driving motor, the driven gear is fixedly arranged on the cutter shaft or the driven gear and the cutter shaft are of an integrated structure, and the driving gear and the driven gear are in meshing transmission;
or: the transmission mechanism comprises a driving crank, the cutter shaft comprises a rotating shaft part and a connecting part positioned at one end of the rotating shaft part, a moving track is arranged on the connecting part, one end of the driving crank is fixedly arranged on the rotating shaft of the driving motor, and the other end of the driving crank is connected to the moving track on the connecting part of the cutter shaft through a shaft position screw;
or the connecting part is provided with a sliding chute, one end of the driving crank is fixedly arranged on a rotating shaft of the driving motor, the other end of the driving crank is provided with a sliding block pin, a sliding block is arranged on the sliding block pin, and the sliding block is arranged in the sliding chute in a sliding manner;
or: the transmission mechanism comprises a worm wheel fixedly arranged on a rotating shaft of the driving motor and a worm coaxially arranged with the cutter shaft, and the worm is connected with the cutter shaft through a coupler or the cutter shaft and the worm are of an integrated structure.
In the motor-driven automatic wire cutting device, the shaft position screw penetrates through the moving track and is locked and limited by the nut, and the roller is sleeved on the shaft position screw.
In the above automatic wire cutting device driven by the motor, the driving motor is provided with a zero position sensor assembly, and the zero position sensor assembly comprises an inductor and magnetic steel arranged on a driving gear or a driving crank.
In foretell automatic wire cutting device of motor drive, be provided with the motor mounting bracket on driving motor's the motor end cover, motor end cover and motor mounting bracket formula structure as an organic whole, driving motor passes through the motor mounting bracket and installs on the casing.
In the above motor-driven automatic wire cutting device, the driving motor is a stepping motor.
Compared with the prior art, the utility model outstanding advantage is:
1. the utility model discloses utilize the mounting hole that is used for installing the electro-magnet trimming device's electro-magnet subassembly on the former casing to install driving motor, do not need redesign shell structure, the commonality is good, can solve stock casing and motor trimming device's adaptation problem.
2. The utility model discloses a driving motor is step motor, and the precision is high, and the noise is little, and the end of a thread is stable, and is little to the influence that the seam produced.
Description of the drawings:
FIG. 1 is a schematic diagram of the background art;
fig. 2 is a schematic view of a gear according to a first embodiment of the present invention, which adopts horizontal transmission;
fig. 3 is a schematic view of a gear according to a first embodiment of the present invention, which adopts vertical transmission;
fig. 4 is an exploded schematic view of a driven gear and a cutter shaft of a split structure according to an embodiment of the present invention;
fig. 5 is an exploded view of a driven gear and a cutter shaft of the present invention;
fig. 6 is a schematic diagram of a second embodiment of the present invention;
fig. 7 is an exploded view of a second embodiment of the present invention;
fig. 8 is an exploded view of a third embodiment of the present invention;
fig. 9 is a schematic view of the housing of the present invention;
fig. 10 is a schematic diagram of the zero position sensor disposed on the driving motor and the driving gear of the present invention.
In the figure: 1. a housing; 2. mounting a bracket; 3. an electromagnet assembly; 10. a housing; 11. a cutter shaft; 12. a first mounting hole; 13. a second mounting hole; 14. the needle rod central line; 15. the shaft axis of the lower shaft; 16. a driving gear; 17. a driven gear; 18. a drive motor; 19. a motor mounting bracket; 20. a motor outlet; 21. a side of the housing; 22. a drive crank; 23. a rotating shaft part; 24. a connecting portion; 25. a motion track; 26. an axial screw; 27. a nut; 28. a roller; 29. a gasket; 30. magnetic steel; 31. an inductor; 32. a chute; 33. A slider pin; 34. a slide block.
The specific implementation mode is as follows:
the invention is further described below with reference to specific embodiments:
the first embodiment is as follows: referring to fig. 2-5, 9, 10:
the utility model provides an automatic trimming device of motor drive, includes casing 10, trimming mechanism, be provided with the driving motor mounting hole on the casing 10, the driving motor mounting hole is the electro-magnet mounting hole in the electro-magnet trimming structure, driving motor 18 passes through the fastener and connects on the driving motor mounting hole, driving mechanism and trimming mechanism's cutter shaft 11 is passed through in the pivot of driving motor 18 and is connected. The drive motor 18 of the present invention is preferably a stepper motor, but may be other types of motors.
The mounting hole of the driving motor comprises a first mounting hole 12 and a second mounting hole 13, the distance L1 between the centers of the first mounting hole 12 and the second mounting hole 13 and the central line 14 of the needle rod is 151 +/-1 mm, the central distance L2 between the first mounting hole 12 and the second mounting hole 13 is 41 +/-1 mm, and the center of the first mounting hole 12 is positioned on the lower shaft axis 15; or the center distance between the first mounting hole 12 and the second mounting hole 13 can be 36 +/-1 mm, and at the moment, the distance from the center of the first mounting hole 12 to the lower shaft axis 15 is 5 +/-1 mm.
The transmission mechanism of the embodiment comprises a driving gear 16 and a driven gear 17, wherein the driving gear 16 and the driven gear 17 are both sector gears, the driving gear 16 is fixedly arranged on a rotating shaft of a driving motor 18 through a radially arranged screw, the driven gear 17 is fixedly arranged on a cutter shaft 11 through a radially arranged screw, and the driving gear 16 and the driven gear 17 are in meshing transmission; the driven gear 17 and the cutter shaft 11 may be formed in an integrated structure, as shown in fig. 5.
In order to facilitate the installation, the motor end cover of the driving motor 18 and the motor mounting bracket 19 are of an integral structure, and the driving motor 18 is installed on the machine shell 10 through the motor mounting bracket 19. The motor end cover of the driving motor 18 and the motor mounting bracket 19 may also be a split structure, as shown in fig. 8.
Because driving motor 18 has the electric wire, the utility model discloses be provided with motor outlet 20 on the casing 10, motor outlet 20 is the electro-magnet outlet in the electromagnet shear line structure, that is to say, the utility model discloses a shear line electro-magnet outlet when motor outlet 20 has utilized the electromagnet shear line structure need not redesign or processing motor outlet 20.
Specifically, the center distance L3 between the motor outlet 20 and the first and second mounting holes 12 and 13 is 126 ± 1mm, and the distance L4 between the center of the motor outlet 20 and the side 21 of the housing is 27 ± 1 mm.
The gear transmission mechanism of the present embodiment can be divided into horizontal transmission (as shown in fig. 2) and vertical transmission (as shown in fig. 3). Horizontal transmission means that the rotating shaft of the driving motor 18 is arranged in parallel with the cutter shaft 11. The vertical transmission means that the rotating shaft of the driving motor 18 is arranged perpendicular to the axis of the cutter shaft 11.
Be provided with zero-position sensor assembly on driving motor 18, zero-position sensor assembly includes inductor 31 and installs magnet steel 30 on driving gear 16 or driving crank. The position of the magnet 30 is sensed by the sensor 31 to determine the null position.
The present embodiment adopts the description of the specific installation operation steps of horizontal transfer:
s1: the driven gear 17 is sleeved into the cutter shaft 11 and fixed at a corresponding position through a screw, and when the driven gear 17 and the cutter shaft 11 are in an integrated structure, the step is omitted.
S2: the matched cutter shaft 11 is inserted into a corresponding position hole of the machine shell 10 and sleeved into a cutter frame crank on the original machine.
S3: the driving gear 16 is sleeved on the rotating shaft of the driving motor 18, and then the driving motor 18 is placed at a corresponding position of the casing 10 and fixed by screws.
S4: adjust the gear cutter shaft assembly to the specified corresponding position of the housing 10 and lock the screws.
S5: and electrifying the stepping motor to determine a zero position, adjusting the positions of the driving gear 16 and the driven gear 17 to a specified position, and locking the gear fixing screw to complete assembly.
Therefore, the control box can control the rotation of the rotating shaft of the driving motor 18 and drive the cutter shaft 11 to rotate through gear transmission, thereby achieving the purpose of thread trimming.
The installation steps and method of vertical transfer are substantially the same as horizontal transfer and are not described herein again.
Example two: referring to fig. 6 and 7:
the difference between this embodiment and the first embodiment is the transmission mechanism.
The transmission mechanism comprises a driving crank 22, the cutter shaft 11 comprises a rotating shaft part 23 and a connecting part 24 positioned at one end of the rotating shaft part 23, a moving track 25 is arranged on the connecting part 24, one end of the driving crank 22 is fixedly arranged on the rotating shaft of the driving motor 18, and the other end of the driving crank 22 is connected to the moving track 25 on the connecting part 24 of the cutter shaft 11 through a shaft position screw 26.
The shaft screw 26 passes through the moving track 25 and is locked and limited by a nut 27, and in order to make the shaft screw 26 slide flexibly in the moving track 25, a roller 28 is sleeved on the shaft screw 26.
The specific installation operation steps of this embodiment are explained as follows:
s1: the roller 28 and the washer 29 are sleeved on the corresponding positions of the shaft position screws 26 in sequence.
S2: the shaft position screw 26 is inserted into the corresponding moving track 25 of the driving crank 22 and is locked by the nut 27 for standby.
S3: the cutter shaft 22 is inserted into a corresponding hole in the housing 20 and is telescoped into a tool holder crank on the original machine.
S4: the matched drive crank 22 is sleeved on the rotating shaft of the stepping motor (the drive motor 18), then the stepping motor is placed at the corresponding position of the machine shell 10, the roller 28 is placed in the moving track 25 on the cutter shaft 11, and the stepping motor is fixed on the machine shell 10 by screws.
S5: the respective prescribed positions of the tool holder crank and the cutter shaft 11 in the housing 10 are adjusted and the screws are locked.
S6: the stepping motor is electrified to determine the zero position, the position locking screws of the crank assembly and the cutter shaft 11 are adjusted, and the driving crank 22 is fixed on the rotating shaft of the stepping motor (the driving motor 18) to be assembled.
Therefore, the control box controls the rotating shaft of the driving motor 18 to drive the cutter shaft 11 to rotate, thereby achieving the purpose of trimming.
Example three: as shown in fig. 8:
the transmission mechanism of the present embodiment is substantially the same as the second embodiment, and the difference is that:
one end of the driving crank 22 of this embodiment is fixedly arranged on the rotating shaft of the driving motor 18, the other end is connected with a sliding block pin 33, one end of the sliding block pin 33 is inserted into the other end of the driving crank 22 and locked by a nut, the other end is arranged in a suspended manner, a sliding block 34 is arranged at the suspended end, the cutter shaft 11 comprises a rotating shaft part 23 and a connecting part 24 positioned at one end of the rotating shaft part 23, a sliding groove 32 is arranged on the connecting part 24, and the sliding block 34 is arranged in the sliding groove 32 in a sliding manner.
Example four:
the difference between this embodiment and the first embodiment is the transmission mechanism.
The transmission mechanism comprises a worm wheel fixedly arranged on a rotating shaft of the driving motor and a worm coaxially arranged with the cutter shaft, and the worm is connected with the cutter shaft through a coupler or the cutter shaft and the worm are of an integrated structure.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The utility model provides an automatic trimming device of motor drive, includes casing (10), trimming mechanism, its characterized in that: the wire cutting machine is characterized in that a driving motor mounting hole is formed in the machine shell (10), the driving motor (18) is connected to the driving motor mounting hole through a fastener, and a rotating shaft of the driving motor (18) is connected with a cutter shaft (11) of the wire cutting mechanism through a transmission mechanism.
2. The motor-driven automatic wire cutting device according to claim 1, wherein: the mounting hole of the driving motor comprises a first mounting hole (12) and a second mounting hole (13), the distance from the center of the first mounting hole (12) and the second mounting hole (13) to the central line (14) of the needle rod is 151 +/-1 mm, the center distance between the first mounting hole (12) and the second mounting hole (13) is 41 +/-1 mm, and the center of the first mounting hole (12) is positioned on the lower shaft axial line (15); or the center distance between the first mounting hole (12) and the second mounting hole (13) is 36 +/-1 mm, and the distance from the center of the first mounting hole (12) to the lower shaft axis (15) is 5 +/-1 mm.
3. The motor-driven automatic wire cutting device according to claim 2, wherein: and a motor outlet (20) is arranged on the shell (10).
4. The motor-driven automatic wire cutting device according to claim 3, characterized in that: the center distance between the motor outlet and the first mounting hole (12) and the center distance between the motor outlet and the second mounting hole (13) are 126 +/-1 mm, and the distance between the center of the motor outlet and the side edge (21) of the shell is 27 +/-1 mm.
5. The motor-driven automatic wire cutting device according to claim 1, wherein: the transmission mechanism comprises a driving gear (16) and a driven gear (17), the driving gear (16) is fixedly arranged on a rotating shaft of a driving motor (18), the driven gear (17) is fixedly arranged on the cutter shaft (11) or the driven gear and the cutter shaft are of an integrated structure, and the driving gear (16) and the driven gear (17) are in meshing transmission;
or: the transmission mechanism comprises a driving crank (22), the cutter shaft (11) comprises a rotating shaft part (23) and a connecting part (24) positioned at one end of the rotating shaft part (23), a moving track (25) is arranged on the connecting part (24), one end of the driving crank (22) is fixedly arranged on the rotating shaft of the driving motor (18), and the other end of the driving crank is connected to the moving track (25) on the connecting part (24) of the cutter shaft (11) through a shaft position screw (26); or the connecting part (24) is provided with a sliding chute (32), one end of the driving crank (22) is fixedly arranged on a rotating shaft of the driving motor (18), the other end of the driving crank is provided with a sliding block pin (33), the sliding block pin (33) is provided with a sliding block (34), and the sliding block (34) is arranged in the sliding chute (32) in a sliding manner;
or: the transmission mechanism comprises a worm wheel fixedly arranged on a rotating shaft of the driving motor (18) and a worm coaxially arranged with the cutter shaft (11), and the worm is connected with the cutter shaft (11) through a coupler or the cutter shaft (11) and the worm are of an integrated structure.
6. The motor-driven automatic wire cutting device according to claim 5, wherein: the shaft position screw (26) penetrates through the moving track (25) and is locked and limited through a nut (27), and a roller (28) is sleeved on the shaft position screw (26).
7. The motor-driven automatic wire cutting device according to claim 5, wherein: the driving motor is provided with a zero position sensor assembly, and the zero position sensor assembly comprises an inductor (31) and magnetic steel (30) arranged on the driving gear (16) or the driving crank (22).
8. The motor-driven automatic wire cutting device according to claim 1, wherein: be provided with motor mounting bracket (19) on the motor end cover of driving motor (18), motor end cover and motor mounting bracket (19) formula structure as an organic whole or split type structure, driving motor (18) are installed on casing (10) through motor mounting bracket (19).
9. A motor-driven automatic thread trimmer according to any one of claims 1-8 and characterized in that: the driving motor (18) is a stepping motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021831022.XU CN213328163U (en) | 2020-08-27 | 2020-08-27 | Automatic trimming device driven by motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021831022.XU CN213328163U (en) | 2020-08-27 | 2020-08-27 | Automatic trimming device driven by motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213328163U true CN213328163U (en) | 2021-06-01 |
Family
ID=76100243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021831022.XU Active CN213328163U (en) | 2020-08-27 | 2020-08-27 | Automatic trimming device driven by motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213328163U (en) |
-
2020
- 2020-08-27 CN CN202021831022.XU patent/CN213328163U/en active Active
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