CN212714048U - Hemming machine's trimming and lift presser foot mechanism and hemming machine - Google Patents
Hemming machine's trimming and lift presser foot mechanism and hemming machine Download PDFInfo
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- CN212714048U CN212714048U CN202020926488.1U CN202020926488U CN212714048U CN 212714048 U CN212714048 U CN 212714048U CN 202020926488 U CN202020926488 U CN 202020926488U CN 212714048 U CN212714048 U CN 212714048U
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Abstract
The application provides a hemming machine's trimming and lift presser foot mechanism and hemming machine, concretely relates to hemming machine makes technical field, including motor, trimming mechanism and lift presser foot mechanism, the motor has the motor shaft that stretches out the motor both ends, the motor installation set up the back at the hemming machine, the motor successively for trimming mechanism with lift presser foot mechanism and make the action and provide the power supply, the motor trigger trimming mechanism when turning to one and carry out the trimming action, the motor trigger when the reversal changes and lift presser foot mechanism and carry out the presser foot action. This application hemming machine has adopted a motor as the power supply, stretches out the motor shaft and is executed respectively to lift the presser foot and cut the line and make up the action with the motor is external, has simple structure for lift presser foot and cut the line mechanism overall arrangement compactness, simple to operate has higher technological advantage and spreading value.
Description
Technical Field
The application provides a hemming machine's trimming and presser foot lifting mechanism and hemming machine, concretely relates to hemming machine makes technical field.
Background
The existing overedger is generally provided with a presser foot lifting and thread cutting mechanism, the two mechanisms are respectively driven by two power driving devices (such as an electromagnet, an electromagnetic valve and the like) to realize the sewing actions of the presser foot lifting and the thread cutting, and the overedger has the defects of complex structure and high energy consumption.
The invention discloses a numerical control automatic thread trimming overlock machine with the national patent publication number of CN101413184A, which comprises a motor driving unit, a presser foot lifting mechanism, an automatic thread trimming mechanism and a machine body, wherein the presser foot lifting mechanism comprises a damping gasket and an electromagnet, the damping gasket is rotatably sleeved on the top of a cylindrical electromagnet, an electromagnet core is exposed at the bottom of the electromagnet, and an electromagnet support is fixed on the lower part of the electromagnet through a screw sleeved with the gasket. The automatic wire cutting mechanism comprises a return spring, a connecting rod, an internal electromagnet and a connecting hook, wherein the upper end of the return spring is hung in a hanging hole at the foremost end of the connecting rod; the rear end of the connecting rod is connected with an upper tool rest, the rear end of the upper tool rest is fixed with an upper wire cutter through a screw, and the rolling shaft penetrates through the guide plate and the sleeve hole of the upper tool rest. The automatic presser foot lifting mechanism has the advantages that the servo motor drives the whole machine to run, redundant residual threads can be thoroughly cut, sewing materials are saved, time is saved, the presser foot is automatically lifted in an electromagnet driving mode, and the whole working efficiency is improved.
The overedger similar to the above patent has many actions of lifting the presser foot and trimming threads by adopting two power sources, and has the defects of complex structure, high energy consumption, great mechanical noise in the operation of the overedger and damage to a good working environment.
Disclosure of Invention
Aiming at the defects of complex structure and high energy consumption of two power driving devices in the prior art of the overedger, the overedger comprises a motor, a thread cutting mechanism and a presser foot lifting mechanism and is characterized in that the motor is provided with a motor shaft extending out of two ends of the motor, the motor is arranged at the back of the overedger and provides a power source for the thread cutting mechanism and the presser foot lifting mechanism in sequence, the motor triggers the thread cutting mechanism to perform thread cutting action when turning in one direction, the motor triggers the presser foot lifting mechanism to perform presser foot lifting action when turning in the opposite direction, and the thread cutting mechanism does not perform thread cutting action when the motor commands the presser foot lifting action; the utility model provides a trimming and presser foot lifting mechanism and hemming machine of hemming machine no matter the corotation of motor or reversal can all realize trimming and lift the presser foot, just the successive thing of action.
The utility model provides a hemming machine's trimming and lift presser foot mechanism and hemming machine's motor mounted position, hemming machine have left socle and right branch frame, left cam and right cam install respectively and fix on the motor shaft at motor both ends, left cam and right cam fix with screw on the motor shaft, left cam and right cam trigger trimming mechanism and lift presser foot mechanism respectively under the motor torque effect, motor corotation drive left cam trigger and lift presser foot mechanism and make up the action, right cam then can not move. The motor is arranged between the left support and the right support, the left support and the right support are arranged at two ends of the motor through screws, and the left support and the right support are fixed on the overedger.
The application provides a hemming machine's trimming and lift presser foot mechanism and hemming machine lift presser foot mechanism, including pulley, push rod, U-shaped pole, connecting rod, steel wire, rotating screw, connecting rod, presser foot arm, presser foot pivot, presser foot pole and presser foot. The pulley of the presser foot lifting mechanism is fixed at the upper end of the push rod through a rotating screw, the function of fixing the push rod is achieved, the presser foot lifting mechanism is further provided with a shaft sleeve, a reset spring, a flat washer and a nut, the push rod is sleeved inside the shaft sleeve, the push rod is fixedly arranged in a first fixing hole formed in the left support through the shaft sleeve in an installing mode, the shaft sleeve is sleeved inside the first fixing hole, the reset spring is arranged below the shaft sleeve and abuts against the shaft sleeve, the lower end of the push rod is provided with threads, and the reset spring is locked in the push rod through the.
The upper end of the push rod is connected with the U-shaped rod through threads, so that the push rod and the rod are connected into a whole, the connecting rod is fixed on the overedger through a rotating screw I, a lever-connecting rod taking the rotating screw I as a fulcrum is realized, the connecting rod is connected with the connecting rod through a steel wire, the connecting rod is fixed on the overedger through a screw, and the tail part of the connecting rod is embedded in a groove of the U-shaped rod.
When a motor shaft of the motor rotates, the cam is driven to rotate to trigger the pulley to move up and down, the pulley drives the push rod and the U-shaped rod connected with the push rod to move up and down, two ends of the connecting rod are driven to move up and down by taking the rotating screw as a fulcrum, a round hole formed in one end of the connecting rod is connected with the connecting rod through a steel wire and drives the connecting rod to move up and down, the connecting rod is movably connected with a presser foot rotating shaft, the presser foot rotating shaft is movably connected with a presser foot arm, the presser foot arm is movably connected with a presser foot rod at the position of the presser foot, sewing actions are carried out under the up and down movement of the presser foot and a cloth feeding device matched with the presser foot, the circular reciprocating action is carried out ce.
The utility model provides a hemming machine's trimming and presser foot mechanism and hemming machine's trimming mechanism, including pulley, push rod, U-shaped pole one, connecting block, rotating screw, pin and rotatory sword axle.
The pulley of the wire cutting mechanism is fixed at the upper end of the push rod through the rotating screw, the wire cutting mechanism is further provided with a shaft sleeve, a reset spring, a flat washer and a nut, the push rod is sleeved inside the shaft sleeve, the push rod is fixedly arranged in a second fixing hole formed in the right support through the shaft sleeve, the shaft sleeve is sleeved inside the second fixing hole, the reset spring is arranged below the shaft sleeve and abuts against the shaft sleeve, the lower end of the push rod is provided with a thread, and the reset spring is locked in the push rod through the flat washer and the nut.
The upper end of the push rod is connected with a first U-shaped rod through threads, the connecting block connects the pin with the rotating cutter shaft through a screw, the first U-shaped rod is provided with a sliding groove, and a part of pin shaft of the pin is embedded in the sliding groove of the first U-shaped rod. When a motor shaft of the motor rotates, the cam is driven to rotate to trigger the pulley to slide along the cam, the pulley drives the push rod and the U-shaped rod connected with the push rod to move upwards, and therefore the rotating knife shaft is driven to rotate to cut off sewing threads.
After the thread trimming mechanism finishes the thread trimming action, the motor drives the cam, the pulley rotates to return to the original position, the push rod returns to the original position through the reset spring, and the next thread trimming action is prepared all the time.
The beneficial effect of this application is: this application hemming machine has adopted a motor as the power supply, stretches out the motor shaft and is executed respectively to lift the presser foot and cut the line and make up the action with the motor is external, has simple structure for lift presser foot and cut the line mechanism overall arrangement compactness, the hemming machine of this application lifts presser foot and cut line mechanism simple to operate, has higher technological advantage and spreading value.
Drawings
FIG. 1 is a schematic structural view of a thread trimming and presser foot lifting mechanism and a overedger of an overedger according to the present application;
FIG. 2 is a position view of a thread cutting and presser foot lifting mechanism of an overlock machine and a motor of the overlock machine according to the present application;
FIG. 3 is a schematic view of a thread trimming and presser foot lifting mechanism and a presser foot lifting mechanism of a overedger according to the present application;
FIG. 4 is a schematic view of a thread trimming and presser foot lifting mechanism of a overedger and a thread trimming mechanism of an overedger according to the present application.
Reference is made to the accompanying drawings in which: 1. a motor; 2. a thread trimming mechanism; 3. a presser foot lifting mechanism; 4. a left bracket; 41. a first fixing hole; 5. a right bracket; 51. a second fixing hole; 6. a left cam; 7. a right cam; 8. a push rod; a U-shaped bar; 10. a shaft sleeve; 11. a return spring; 12. a flat washer; 13. a nut; 14. a pulley; 15. rotating the screw; 16. rotating the first screw; 17. a connecting rod; 18. a steel wire; 19. a connecting rod; 20. a presser foot arm; 21. a presser foot spindle; 22. a presser bar; 23. overedger; 24. a motor shaft; 25. a presser foot; 26, a first U-shaped rod; 261. a chute; 27. connecting blocks; 28. a screw; 29. a pin; 30. the knife shaft is rotated.
Detailed Description
Preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings so that the advantages and features of the application can be more readily understood by those skilled in the art, and thus the scope of the application will be more clearly and clearly defined.
FIG. 1 is a schematic structural view of a thread trimming and presser foot lifting mechanism and a overlock machine of an overlock machine, wherein the overlock machine 23 comprises a motor 1, a thread trimming mechanism 2 and a presser foot lifting mechanism 3; the motor 1 is arranged at the back of the overedger 23, the motor 1 is provided with a motor shaft 24 extending out of two ends of the motor 1, the motor shaft 24 of the motor 1 provides a power source for sewing actions of the thread trimming mechanism 2 and the presser foot lifting mechanism 3, the motor 1 triggers the thread trimming mechanism 3 to perform thread trimming actions when one rotating direction is changed, and the motor 1 triggers the presser foot lifting mechanism 2 to perform presser foot lifting actions when the rotating direction is changed reversely.
In fig. 2, fig. 3 and fig. 4, fig. 2 shows the thread cutting and presser foot lifting mechanism of the overedger and the installation position of the motor 1 of the overedger, the overedger 23 is provided with a left support 4, a right support 5, a left cam 6 and a right cam 7, the left cam 6 and the right cam 7 are respectively installed and fixed on the motor shaft 24 at two ends of the motor 1, the left cam 6 and the right cam 7 are fixed on the motor shaft 24 by screws, the left cam 6 and the right cam 7 respectively trigger the thread cutting mechanism 2 and the presser foot lifting mechanism 3 under the torque action of the motor 1, the motor 1 positively rotates to drive the left cam 6 to trigger the presser foot lifting mechanism 3 to perform sewing action, and the right cam 7 cannot act. The motor 1 is arranged between the left support 4 and the right support 5, the left support 4 and the right support 5 are arranged at two ends of the motor through screws, and the left support 4 and the right support 5 are fixed on the overedger 23.
Fig. 1, 2 and 3 show a thread trimming and presser foot lifting mechanism of a overedger and a presser foot lifting mechanism 3 of the overedger according to the present invention, which comprises a pulley 14, a push rod 8, a U-shaped rod 9, a connecting rod 17, a steel wire 18, a rotating screw 15, a connecting rod 19, a presser foot arm 20, a presser foot rotating shaft 21, a presser foot rod 22 and a presser foot 25. The pulley 14 of the presser foot lifting mechanism 3 is fixed at the upper end of the push rod 8 through a rotating screw 15, the presser foot lifting mechanism 3 is further provided with a shaft sleeve 10, a return spring 11, a flat washer 12 and a nut 13, the push rod 8 is sleeved inside the shaft sleeve 10, the push rod 8 is fixedly installed in a first fixing hole 41 of the left support 4 through the shaft sleeve 10, the shaft sleeve 10 is sleeved inside the first fixing hole 41, the return spring 11 is arranged below the shaft sleeve 10, the return spring 11 abuts against the shaft sleeve 10, the lower end of the push rod 8 is provided with threads, and the return spring is locked inside the push rod 8 through the flat washer 12 and the nut 13.
The upper end of the push rod 8 is connected with the U-shaped rod 9 through threads, so that the push rod 8 and the rod 9 are connected into a whole, the connecting rod 17 is fixed on the overedger 23 through the first rotating screw 16, a lever with the first rotating screw 16 as a fulcrum, namely the connecting rod 17, is realized, the connecting rod 17 is connected with the connecting rod 19 through the steel wire 18, the connecting rod 19 is fixed on the overedger 23 through the screw, and the tail part of the connecting rod 17 is embedded in the groove of the U-shaped rod 9.
When a motor shaft 24 of the motor 1 rotates, the cam 6 is driven to rotate to trigger the pulley 14 to move up and down, the pulley 14 drives the push rod 8 and the U-shaped rod 9 connected with the push rod to move up and down, two ends of the connecting rod 17 are driven to move up and down by taking the rotating screw 16 as a fulcrum, a round hole formed in one end of the connecting rod 17 is connected with the connecting rod 19 through the steel wire 18 and drives the connecting rod 19 to move up and down, the connecting rod 19 is movably connected with a presser foot rotating shaft 21, the presser foot rotating shaft 21 is movably connected with a presser foot arm 20, the presser foot arm 20 is movably connected with a presser foot rod 22 at the position of the presser foot 25, sewing actions are carried out under the up and down movement of the presser foot 25 and a cloth feeding device matched with the presser foot 25, the presser foot 25 is continuously moved in a.
Fig. 1, 2 and 4 show a thread trimming and presser foot lifting mechanism of a overedger and a thread trimming mechanism 2 of an overedger according to the present invention, which comprises a pulley 14, a push rod 8, a first U-shaped rod 26, a connecting block 27, a rotating screw 15, a screw 28, a pin 29 and a rotating knife shaft 30.
The pulley 14 of the thread trimming mechanism 2 is fixed at the upper end of the push rod 8 through the rotating screw 15, so that the effect of fixing the push rod 8 is achieved, the thread trimming mechanism 2 further comprises a shaft sleeve 10, a reset spring 11, a flat washer 12 and a nut 13, the push rod 8 is sleeved inside the shaft sleeve 10, the push rod 8 is fixedly installed in a fixing hole II 51 formed in the right support 5 through the shaft sleeve 10, the shaft sleeve 10 is sleeved inside the fixing hole II 51, the reset spring 11 is arranged below the shaft sleeve 10, the reset spring 11 abuts against the shaft sleeve 10 in a propping mode, threads are formed in the lower end of the push rod 8, and the reset spring is locked in the push rod 8 through the flat washer 12 and.
The upper end of the push rod 8 is connected with a U-shaped rod 26 through a screw thread, the connecting block 27 connects a pin 29 with a rotating knife shaft 30 through a screw 28, the U-shaped rod 26 is provided with a sliding groove 261, and a part of pin shafts of the pin 21 are embedded in the sliding groove 261 of the U-shaped rod 26. When a motor shaft 24 of the motor 1 rotates, the cam 6 is driven to rotate to trigger the pulley 14 to slide along the cam 6, the pulley 14 drives the push rod 8 and the U-shaped rod I26 connected with the push rod to move upwards, and therefore the rotating knife shaft 30 is driven to rotate to cut off the sewing threads.
After the thread trimming mechanism 2 finishes the thread trimming action, the motor 1 drives the cam 6, the pulley 14 rotates to return to the original position, the push rod 8 returns to the original position through the return spring 11, and the next thread trimming action is prepared at any time.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (9)
1. A thread cutting and presser foot lifting mechanism of a overedger comprises a motor, a thread cutting mechanism and a presser foot lifting mechanism and is characterized in that the motor is provided with a motor shaft extending out of two ends of the motor, the motor provides power sources for sewing actions of the thread cutting mechanism and the presser foot lifting mechanism in sequence, the motor triggers the thread cutting mechanism to perform thread cutting actions when one rotation direction is changed, and the motor triggers the presser foot lifting mechanism to perform presser foot lifting actions when the rotation direction is changed reversely.
2. The thread trimming and presser foot lifting mechanism of claim 1, wherein said motor is mounted on the back of the overlock machine.
3. The thread trimming and presser foot lifting mechanism of overedger according to claim 1 or 2, wherein said overedger comprises a left bracket, a right bracket, a left cam and a right cam, said left cam and right cam are respectively mounted and fixed on the motor shaft at two ends of the motor, said left cam and right cam are fixed on the motor shaft by screws, said motor is mounted between the left bracket and the right bracket, the left bracket and the right bracket are mounted at two ends of the motor by screws, the left bracket and the right bracket are fixed on the overedger.
4. The thread trimming and presser foot lifting mechanism of claim 3, wherein the presser foot lifting mechanism comprises a pulley, a push rod, a U-shaped rod, a connecting rod, a steel wire, a rotating screw, a connecting rod, a presser arm, a presser foot rotating shaft, a presser foot rod and a presser foot, the pulley is fixed at the upper end of the push rod through the rotating screw, the presser foot lifting mechanism further comprises a shaft sleeve, a return spring, a flat washer and a nut, the upper end of the push rod is connected with the U-shaped rod through a thread, the connecting rod is connected with the connecting rod through the steel wire, the tail part of the connecting rod is embedded in a groove of the U-shaped rod, a cam is driven to rotate to trigger the pulley to move up and down when a motor shaft of the motor rotates, the pulley drives the push rod and the U-shaped rod connected with the push rod to move up and down, the two ends of the connecting rod make up and down movements with the rotating screw as a fulcrum, a round hole, the connecting rod is movably connected with a presser foot rotating shaft, the presser foot rotating shaft is movably connected with a presser foot arm, and the presser foot arm is movably connected with a presser foot rod at the position of the presser foot.
5. The thread trimming and presser foot lifting mechanism of claim 4, wherein said connecting rod is secured to the overlock machine by a rotating screw, said connecting rod being secured to the overlock machine by a screw.
6. The thread trimming and presser foot lifting mechanism of claim 4, wherein the lower end of the push rod is provided with a thread, the push rod is sleeved inside a shaft sleeve, the push rod is fixedly installed in a first fixing hole of the left bracket through the shaft sleeve, the shaft sleeve is sleeved inside the first fixing hole, a return spring is arranged below the shaft sleeve and abuts against the shaft sleeve, and the flat washer and the nut lock the return spring inside the push rod.
7. The thread trimming and presser foot lifting mechanism of the overedger according to claim 1, wherein the thread trimming mechanism comprises a pulley, a push rod, a first U-shaped rod, a connecting block, a rotating screw, a pin and a rotating knife shaft, the pulley is fixed at the upper end of the push rod through the rotating screw, the thread trimming mechanism further comprises a shaft sleeve, a return spring, a flat washer and a nut, the upper end of the push rod is connected with the first U-shaped rod through a thread, the pin is connected with the rotating knife shaft through the screw by the connecting block, the first U-shaped rod is provided with a sliding groove, a part of the pin is embedded in the sliding groove of the first U-shaped rod, a motor shaft of the motor drives the cam to rotate to trigger the pulley to slide along the cam when rotating, the pulley drives the push rod and the U-shaped rod connected with the push rod to move upwards, and the rotating knife shaft rotates.
8. The thread trimming and presser foot lifting mechanism of claim 7, wherein the lower end of the push rod is provided with a thread, the push rod is sleeved inside a shaft sleeve, the push rod is fixed inside a second fixing hole of the right bracket through the shaft sleeve, the shaft sleeve is sleeved inside the second fixing hole, a return spring is arranged below the shaft sleeve and abuts against the shaft sleeve, and the flat washer and the nut lock the return spring inside the push rod.
9. An overlock machine comprising the thread trimming and presser foot lifting mechanism of any one of claims 2 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020926488.1U CN212714048U (en) | 2020-05-27 | 2020-05-27 | Hemming machine's trimming and lift presser foot mechanism and hemming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020926488.1U CN212714048U (en) | 2020-05-27 | 2020-05-27 | Hemming machine's trimming and lift presser foot mechanism and hemming machine |
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| Publication Number | Publication Date |
|---|---|
| CN212714048U true CN212714048U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020926488.1U Active CN212714048U (en) | 2020-05-27 | 2020-05-27 | Hemming machine's trimming and lift presser foot mechanism and hemming machine |
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| CN (1) | CN212714048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164577A (en) * | 2021-11-17 | 2022-03-11 | 上海鲍麦克斯电子科技有限公司 | Thread trimming and presser foot device for stepping button sewing machine |
-
2020
- 2020-05-27 CN CN202020926488.1U patent/CN212714048U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164577A (en) * | 2021-11-17 | 2022-03-11 | 上海鲍麦克斯电子科技有限公司 | Thread trimming and presser foot device for stepping button sewing machine |
| CN114164577B (en) * | 2021-11-17 | 2023-05-26 | 上海鲍麦克斯电子科技有限公司 | Thread trimming and presser foot device for stepping button sewing machine |
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