CN212714028U - Thread trimming and presser foot lifting mechanism of flat seaming machine - Google Patents
Thread trimming and presser foot lifting mechanism of flat seaming machine Download PDFInfo
- Publication number
- CN212714028U CN212714028U CN202021396960.1U CN202021396960U CN212714028U CN 212714028 U CN212714028 U CN 212714028U CN 202021396960 U CN202021396960 U CN 202021396960U CN 212714028 U CN212714028 U CN 212714028U
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- Prior art keywords
- presser foot
- thread
- foot lifting
- trimming
- assembly
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- Expired - Fee Related
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- 238000009966 trimming Methods 0.000 title claims abstract description 58
- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 238000004826 seaming Methods 0.000 title claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000002457 bidirectional effect Effects 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims 3
- 238000009958 sewing Methods 0.000 abstract description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 abstract 1
- 235000011613 Pinus brutia Nutrition 0.000 abstract 1
- 241000018646 Pinus brutia Species 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model belongs to the technical field of sewing machine, a trimming and lifting presser foot mechanism of flat seaming machine, include frame, trimming subassembly, pine subassembly and lift the presser foot subassembly, the mechanism still includes two-way motor, the cover is equipped with the driving gear on two-way motor's the output shaft, the drive gear meshes the transmission with the rack, the one end of rack with lift the presser foot subassembly and contradict and be connected, be provided with on the rack and extend the outer fender arm of rack, keep off the arm front end and lift the opposite side conflict that the presser foot subassembly conflict is relative and be connected with the trimming subassembly. The utility model provides a flat seaming machine's trimming with lift presser foot mechanism is by a motor drive trimming with lift the presser foot action, has reduced the noise, the cost is reduced occupies space still less simultaneously, has improved the flexibility of complete machine.
Description
Technical Field
The utility model belongs to the technical field of sewing machine, a trimming and lift presser foot mechanism of flat seaming machine is related to.
Background
The thread trimming mechanism and the presser foot lifting mechanism on the traditional flat seaming machine are two mutually independent mechanisms which are respectively driven by two electromagnets, and the flat seaming machine has the defects of large occupied space, high cost, large electromagnet driving noise, poor stability and the like.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a flat seaming machine's trimming and lift presser foot mechanism, by a motor drive trimming with lift the presser foot action, reduced the noise, the cost is reduced occupies space still less simultaneously, has improved the flexibility of complete machine.
In order to solve the above technical problem, the purpose of the present invention can be achieved by the following technical solutions:
the thread trimming and presser foot lifting mechanism of the flat seaming machine comprises a machine base, a thread trimming assembly, a thread loosening assembly, a presser foot lifting assembly and a bidirectional motor, wherein a driving gear is sleeved on an output shaft of the bidirectional motor, a driving gear is meshed with a rack for transmission, one end of the rack is in butt connection with the presser foot lifting assembly, a blocking arm extending out of the rack is arranged on the rack, and the front end of the blocking arm is in butt connection with the other side, opposite to the butt point of the presser foot lifting assembly, of the blocking arm.
The bidirectional motor is installed on the shell through the motor installation plate, the output shaft of the bidirectional motor is vertically arranged downwards, the rack is arranged in the sliding groove in the side face of the motor installation plate in a sliding mode, the blocking arm is fixed to the bottom of the rack, and the driving rack of the bidirectional motor slides left and right to respectively push the presser foot lifting assembly and the thread trimming assembly to move.
The structure of the trimming assembly is as follows: be provided with the scissors mounting panel on the frame, install the scissors subassembly on the scissors mounting panel, the scissors subassembly passes through the scissors pull rod and adjusts the seat subassembly and be connected, the one end of scissors pull rod is articulated with the scissors subassembly, and the other end is articulated with adjusting the seat subassembly, and the middle part of scissors pull rod is articulated with the scissors mounting panel, adjust the one end fixed connection of seat subassembly and polished rod, the other end and the trimming crank fixed connection of polished rod, trimming crank's upper end is contradicted with the fender arm and is connected.
Further, one side of above-mentioned frame is provided with the support, the polished rod slides and wears to establish on the support, and the cover is equipped with the solid fixed ring that is provided with in the lump of resilience spring on the polished rod in the support, resilience spring one sets up at solid fixed ring and be close to between the articulate support inner wall of trimming.
The structure of the thread releasing assembly is as follows: the thread loosening assembly comprises a thread loosening connecting rod and a thread loosening ejector rod, one end of the thread loosening connecting rod is fixedly connected with the thread cutting crank, the other end of the thread loosening connecting rod is fixedly connected with the thread loosening ejector rod, the thread loosening ejector rod acts on the thread passing device assembly to complete thread loosening, the thread loosening connecting rod is distributed according to the internal structure of the flat seaming machine, and the thread loosening connecting rod can be integrated or formed by connecting a plurality of split connecting rods.
The structure of the presser foot lifting assembly is as follows: the rack is connected with the lower end of the presser foot lifting lever in an abutting mode, the upper end of the presser foot lifting lever is hinged to the machine shell and connected with a presser foot lifting crank, a transmission connecting rod is hinged to the protruding end of the presser foot lifting crank, the other end of the transmission connecting rod is hinged to a transmission shaft crank, the transmission shaft crank is fixedly sleeved on the transmission shaft in a sleeved mode, and the tail end of the transmission shaft is connected with a presser foot assembly.
The structure of the presser foot component is as follows: the tail end of the transmission shaft is fixedly provided with a presser foot crank, the presser foot crank is connected with a presser foot sliding block through a presser foot connecting rod, the presser foot sliding block is arranged in a sliding groove of the machine shell in a sliding mode, the upper end of the presser foot connecting rod is hinged with the presser foot crank, the lower end of the presser foot connecting rod is hinged with the presser foot sliding block, the presser foot sliding block is fixedly connected with a pressing rod, a second rebound spring is sleeved on the pressing rod above the presser foot sliding block, and the presser foot assembly further comprises a presser foot sleeve, a presser foot.
The rack is provided with a roller at one end close to the presser foot lifting component, the roller is in abutting connection with the presser foot lifting component, and rolling friction is generated when the rack drives the presser foot lifting component.
The bidirectional motor is a stepping motor, and an encoder is arranged on the bidirectional motor.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses a motor drive trimming and lift the presser foot action, utilize rack and pinion's transmission mode, when the rack slides to a direction, the presser foot action is lifted in the drive completion, when the rack slides to another direction, the trimming action is accomplished in the drive. The utility model has the advantages of the noise is little, and is with low costs, occupies space still less simultaneously, has improved the flexibility of complete machine, and its transmission mode is also more stable.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the transmission structure of the present invention;
fig. 3 is a perspective view of another angle of the transmission structure of the present invention;
fig. 4 is a partial perspective view of the present invention;
reference numerals: 1. a machine base; 2. a bi-directional motor; 3. a driving gear; 4. a rack; 5. a catch arm; 6. a motor mounting plate; 7. a scissors mounting plate; 8. a scissor assembly; 9. a scissor pull rod; 10. adjusting the seat assembly; 11. a polish rod; 12. a thread cutting crank; 13. a support; 14. a first rebound spring; 15. a fixing ring; 16. a thread releasing connecting rod; 17. loosening the ejector rod; 18. a wire passing assembly; 19. lifting a presser foot lever; 20. lifting a presser foot crank; 21. a transmission connecting rod; 22. a drive shaft crank; 23. a drive shaft; 24. a presser foot crank; 25. a presser foot connecting rod; 26. a presser foot slide block; 27. a pressure lever; 28. a second rebound spring; 29. a roller; 30. an encoder.
Detailed Description
The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1 to 4:
a thread trimming and presser foot lifting mechanism of a flat seaming machine comprises a machine base 1, a thread trimming assembly, a thread loosening assembly and a presser foot lifting assembly, and further comprises a bidirectional motor 2, a driving gear 3 is sleeved on an output shaft of the bidirectional motor 2, the driving gear 3 is in meshing transmission with a rack 4, one end of the rack 4 is in abutting connection with the presser foot lifting assembly, a blocking arm 5 extending out of the rack 4 is arranged on the rack 4, the other side, opposite to the abutting point of the pressing foot lifting assembly, of the front end of the blocking arm 5 is in abutting connection with the thread trimming assembly, when the rack 4 slides towards the presser foot lifting assembly, the end face of the rack 4 drives the presser foot lifting assembly to complete the presser foot lifting action, and when the rack 4 slides towards the thread trimming assembly, the blocking arm 5 drives the thread trimming assembly to complete the thread trimming action.
The rack 4 is provided with a roller 29 at one end close to the presser foot lifting assembly, the roller 29 is in abutting connection with the presser foot lifting assembly, and the rack 4 is in rolling friction when driving the presser foot lifting assembly.
Referring to fig. 4, the bidirectional motor 2 is mounted on the housing through the motor mounting plate 6, the output shaft of the bidirectional motor 2 is vertically arranged downward, the rack 4 is slidably arranged in a chute on the side surface of the motor mounting plate 6, the baffle arm 5 is fixed at the bottom of the rack 4, and the driving gear 3 of the bidirectional motor 2 drives the rack 4 to slide left and right to respectively push the presser foot lifting assembly and the thread trimming assembly to move.
Referring to fig. 2, the structure of the thread trimming assembly is as follows: be provided with scissors mounting panel 7 on the frame 1, install scissors subassembly 8 on the scissors mounting panel 7, scissors subassembly 8 passes through scissors pull rod 9 and is connected with regulation seat subassembly 10, the one end of scissors pull rod 9 is articulated with scissors subassembly 8, and the other end is articulated with regulation seat subassembly 10, and the middle part of scissors pull rod 9 is articulated with scissors mounting panel 7, adjust the one end fixed connection of seat subassembly 10 and polished rod 11, the other end and trimming crank 12 fixed connection of polished rod 11, trimming crank 12's upper end and fender arm 5 are contradicted and are connected, can promote trimming crank 12 simultaneously and remove when fender arm 5 removes, and then accomplish the trimming through the transmission and move.
The utility model also provides a reset structure after the trimming action is accomplished, specifically do: one side of the machine base 1 is provided with a support 13, the polished rod 11 is slidably arranged on the support 13 in a penetrating manner, a first rebound spring 14 is sleeved on the polished rod 11 in the support 13 and is provided with a fixing ring 15, and the first rebound spring 14 is arranged between the fixing ring 15 and the inner wall of the support 13 close to the trimming crank 12.
Referring to fig. 3, the above-mentioned thread releasing assembly has the following structure: the thread loosening assembly comprises a thread loosening connecting rod 16 and a thread loosening ejector rod 17, one end of the thread loosening connecting rod 16 is fixedly connected with the thread cutting crank 12, the other end of the thread loosening connecting rod is fixedly connected with the thread loosening ejector rod 17, the thread loosening ejector rod 17 acts on the thread passing device assembly 18 to complete thread loosening, and the thread loosening connecting rod 16 is distributed according to the internal structure of the flat seaming machine and can be integrated or formed by connecting a plurality of split connecting rods. When the stop arm 5 pushes the thread trimming crank 12, the thread loosening connecting rod 16 is pushed at the same time, so that thread loosening is finished through transmission, and the thread loosening assembly is driven to reset when the thread trimming assembly resets.
Referring to fig. 2, the structure of the presser foot lifting assembly is as follows: the rack 4 is connected with the lower end of a presser foot lifting lever 19 in an abutting mode, the upper end of the presser foot lifting lever 19 is hinged to the machine shell and connected with a presser foot lifting crank 20, the protruding end of the presser foot lifting crank 20 is hinged to a transmission connecting rod 21, the other end of the transmission connecting rod 21 is hinged to a transmission shaft crank 22, the transmission shaft crank 22 is fixedly sleeved on a transmission shaft 23, a presser foot crank 24 is fixed to the tail end of the transmission shaft 23, the presser foot crank 24 is connected with a presser foot sliding block 26 through a presser foot connecting rod 25, the presser foot sliding block 26 is slidably arranged in a sliding groove of the machine shell, the upper end of the presser foot connecting rod 25 is hinged to the presser foot crank 24, the lower end of the presser foot sliding block 26 is hinged to the presser foot sliding block 26, the presser foot sliding block 26 is fixedly connected with a pressing rod 27, a second rebound spring 28, and will not be described one by one here. When the rack 4 moves, the lower end of the presser foot lifting lever 19 is pushed to rotate, and then the presser foot lifting action is completed through transmission.
Preferably, the bidirectional motor 2 is a stepping motor, and the encoder 30 is provided on the bidirectional motor 2.
The utility model discloses a work flow is: taking the direction shown in the attached drawing 1 as an example, when the output shaft of the bidirectional motor 2 drives the driving gear 3 to rotate clockwise, the rack 4 slides rightwards, the right end face of the rack 4 pushes the presser foot lifting lever 19 to rotate, the presser foot lifting lever 19 drives the transmission shaft 23 to rotate through the presser foot lifting crank 20, the transmission link 21 and the transmission shaft crank 22, the transmission shaft 23 drives the presser foot slider 26 to move downwards through the presser foot crank 24 and the presser foot link 25 when rotating, the presser foot slider 26 drives the pressing rod 27 to complete the presser foot lifting action, meanwhile, the second rebound spring 28 is compressed, and after the rack 4 is reset, the second rebound spring 28 drives the presser foot lifting assembly to reset.
When an output shaft of the bidirectional motor 2 drives the driving gear 3 to rotate anticlockwise, the rack 4 slides leftwards, the rack 4 drives the baffle arm 5 to move leftwards simultaneously, the baffle arm 5 pushes the thread trimming crank 12 to move leftwards, the thread trimming crank 12 drives the adjusting seat assembly 10 to move leftwards through the polished rod 11 when moving, the polished rod 11 compresses the first rebound spring 14 when moving, the adjusting seat assembly 10 pulls the scissors pull rod 9 to rotate around a hinge point in the middle, and the other end of the scissors pull rod 9 acts on the thread trimming assembly 8 to complete thread trimming; meanwhile, the thread trimming crank 12 drives the thread releasing connecting rod 16 to move simultaneously when moving, and the thread releasing connecting rod 16 drives the thread releasing ejector rod 17 to act on the thread passing device assembly 18 to complete thread releasing; after the rack 4 is reset, the first rebound spring 14 drives the thread trimming assembly and the thread releasing assembly to reset.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (9)
1. The thread trimming and presser foot lifting mechanism of the flat seaming machine comprises a machine base (1), a thread trimming assembly, a thread loosening assembly and a presser foot lifting assembly and is characterized by further comprising a bidirectional motor (2), a driving gear (3) is sleeved on an output shaft of the bidirectional motor (2), the driving gear (3) is in meshing transmission with a rack (4), one end of the rack (4) is in butt joint with the presser foot lifting assembly, a blocking arm (5) extending out of the rack (4) is arranged on the rack (4), and the front end of the blocking arm (5) is in butt joint with the other side, opposite to the butt joint point of the presser foot lifting assembly, of the thread trimming assembly.
2. The thread trimming and presser foot lifting mechanism of a flat seaming machine as claimed in claim 1, wherein the bidirectional motor (2) is mounted on the housing through a motor mounting plate (6), the output shaft of the bidirectional motor (2) is vertically arranged downwards, the rack (4) is slidably arranged in a chute on the side surface of the motor mounting plate (6), and the baffle arm (5) is fixed at the bottom of the rack (4).
3. The thread trimming and presser foot lifting mechanism of a flat seaming machine as claimed in claim 1, wherein the structure of the thread trimming assembly is: be provided with scissors mounting panel (7) on frame (1), install scissors subassembly (8) on scissors mounting panel (7), scissors subassembly (8) are connected with regulation seat subassembly (10) through scissors pull rod (9), the one end of scissors pull rod (9) is articulated with scissors subassembly (8), and the other end is articulated with regulation seat subassembly (10), and the middle part is articulated with scissors mounting panel (7), adjust the one end fixed connection of seat subassembly (10) and polished rod (11), the other end and trimming crank (12) fixed connection of polished rod (11), the upper end and the fender arm (5) of trimming crank (12) are contradicted and are connected.
4. The thread trimming and presser foot lifting mechanism of a flat seaming machine according to claim 3, wherein a support (13) is arranged on one side of the machine base (1), the polish rod (11) is slidably arranged on the support (13), a first rebound spring (14) is sleeved on the polish rod (11) in the support (13) and provided with a fixing ring (15), and the first rebound spring (14) is arranged between the fixing ring (15) and the inner wall of the support (13) close to the thread trimming crank (12).
5. The thread trimming and presser foot lifting mechanism of a flat seaming machine according to claim 3, wherein the thread releasing assembly comprises a thread releasing connecting rod (16) and a thread releasing ejector rod (17), one end of the thread releasing connecting rod (16) is fixedly connected with the thread trimming crank (12), the other end of the thread releasing connecting rod is fixedly connected with the thread releasing ejector rod (17), and the thread releasing ejector rod (17) acts on the thread passing device assembly (18) to complete thread releasing.
6. The thread trimming and presser foot lifting mechanism of a flat seaming machine as claimed in claim 1, wherein the structure of the presser foot lifting assembly is: the rack (4) is connected with the lower end of a presser foot lifting lever (19) in an abutting mode, the upper end of the presser foot lifting lever (19) is hinged to the machine shell and connected with a presser foot lifting crank (20), a protruding end of the presser foot lifting crank (20) is hinged to a transmission connecting rod (21), the other end of the transmission connecting rod (21) is hinged to a transmission shaft crank (22), the transmission shaft crank (22) is fixedly sleeved on a transmission shaft (23), and the tail end of the transmission shaft (23) is connected with a presser foot assembly.
7. The thread trimming and presser foot lifting mechanism of a flat seaming machine as claimed in claim 6, wherein the structure of the presser foot assembly is: the tail end of the transmission shaft (23) is fixedly provided with a presser foot crank (24), the presser foot crank (24) is connected with a presser foot sliding block (26) through a presser foot connecting rod (25), the upper end of the presser foot connecting rod (25) is hinged with the presser foot crank (24), the lower end of the presser foot connecting rod is hinged with the presser foot sliding block (26), the presser foot sliding block (26) is fixedly connected with a pressing rod (27), and a second rebound spring (28) is sleeved on the pressing rod (27) above the presser foot sliding block (26).
8. The trimming and presser foot lifting mechanism of a flat seaming machine according to claim 1, wherein one end of the rack (4) close to the presser foot lifting assembly is provided with a roller (29), and the roller (29) is connected with the presser foot lifting assembly in an interference manner.
9. The thread trimming and presser foot lifting mechanism of a flat seaming machine according to claim 1, wherein the bidirectional motor (2) is a stepping motor, and an encoder (30) is arranged on the bidirectional motor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021396960.1U CN212714028U (en) | 2020-07-15 | 2020-07-15 | Thread trimming and presser foot lifting mechanism of flat seaming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021396960.1U CN212714028U (en) | 2020-07-15 | 2020-07-15 | Thread trimming and presser foot lifting mechanism of flat seaming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212714028U true CN212714028U (en) | 2021-03-16 |
Family
ID=74906361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021396960.1U Expired - Fee Related CN212714028U (en) | 2020-07-15 | 2020-07-15 | Thread trimming and presser foot lifting mechanism of flat seaming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212714028U (en) |
-
2020
- 2020-07-15 CN CN202021396960.1U patent/CN212714028U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210316 |
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| CF01 | Termination of patent right due to non-payment of annual fee |