CN219908079U - Backstitch mechanism of sewing machine - Google Patents
Backstitch mechanism of sewing machine Download PDFInfo
- Publication number
- CN219908079U CN219908079U CN202321565780.5U CN202321565780U CN219908079U CN 219908079 U CN219908079 U CN 219908079U CN 202321565780 U CN202321565780 U CN 202321565780U CN 219908079 U CN219908079 U CN 219908079U
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- CN
- China
- Prior art keywords
- backstitch
- bolt
- crank
- shaft
- mounting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 74
- 238000009958 sewing Methods 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sewing Machines And Sewing (AREA)
Abstract
The utility model belongs to the technical field of sewing machines, and particularly relates to a backstitch mechanism of a sewing machine, which comprises: the driving assembly comprises a driving mechanism for driving the backstitch shaft to rotate and a connecting mechanism for driving the driving mechanism to be connected with the backstitch shaft, wherein the connecting mechanism is arranged between the backstitch shaft and the driving mechanism, the driving mechanism and the backstitch shaft are staggered and distributed in a crisscross manner, the driving mechanism comprises a screw rod and a driving motor, and the output end of the driving motor is connected to one end of the screw rod.
Description
Technical Field
The utility model belongs to the technical field of sewing machines, and particularly relates to a backstitch mechanism of a sewing machine.
Background
When the backstitch is needed, the backstitch mechanism comprises a crank, a connecting rod and an electromagnet driving mechanism or a motor, when the backstitch mechanism is used, the electromagnet driving mechanism or the motor drives the connecting rod to push the crank, so that the backstitch shaft is driven to rotate, and then automatic backstitch of equipment is realized, however, the backstitch shaft is directly connected with the driving end of the electromagnet driving mechanism or the motor through the crank and the connecting rod, when the electromagnet driving mechanism and the motor stop running, the force born on the backstitch shaft directly acts on the output end of the electromagnet driving mechanism or the motor through the crank and the connecting rod, so that the electromagnet driving mechanism or the motor always bears the force transmitted on the backstitch shaft, the electromagnet driving mechanism or the motor is damaged, and the service life of the electromagnet driving mechanism or the motor is reduced.
Disclosure of Invention
The utility model aims to provide a backstitch mechanism of a sewing machine, which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a sewing machine backstitch mechanism comprising: the backstitch shaft and drive the backstitch shaft carries out pivoted actuating assembly, actuating assembly is including driving the backstitch shaft carries out rotation drive's actuating mechanism and will actuating mechanism carries out actuating connection with the backstitch shaft coupling mechanism, coupling mechanism installs between backstitch shaft and actuating mechanism, just actuating mechanism and backstitch shaft dislocation are cross distribution.
Preferably, the driving mechanism comprises a screw and a driving motor, the output end of the driving motor is connected with one end of the screw, the screw is arranged on the radial direction of the backstitch shaft, the screw is connected with a connecting block in a threaded manner, and one end of the connecting mechanism is arranged on the connecting block.
Preferably, the screw is deviated from one side of backstitch axle and is installed the mount pad, one side symmetry that the mount pad is close to the screw is installed two mounting panels, the screw is rotated and is installed between two mounting panels.
Preferably, the connecting mechanism comprises a connecting rod and a crank, the crank is detachably arranged on the backstitch shaft, one end of the connecting rod is rotatably arranged on the connecting block, the other end of the connecting rod is horizontally provided with a bolt, one end of the crank, deviating from the backstitch shaft, penetrates through a mounting hole, one end of the bolt slides and penetrates through the mounting hole, and one end of the crank, deviating from the bolt, is provided with a mounting bolt in threaded connection with the bolt.
Preferably, the bolt is close to one side of the mounting bolt and is provided with a second threaded hole, one end of the mounting bolt is screwed in the second threaded hole, one end of the mounting bolt, deviating from the bolt, is provided with a nut, and the outer diameter of the nut is larger than the inner diameter of the mounting hole.
Preferably, the through hole is run through to the one end of crank, the crank passes through the through-hole cover and establishes on the backstitch axle, install fastening bolt on the crank, set up on the outer wall of crank with the first screw hole of through-hole intercommunication, fastening bolt's one end spin joint runs through first screw hole, just fastening bolt's one end butt is epaxial at the backstitch.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the utility model, the connecting mechanism is additionally arranged between the backstitch shaft and the driving mechanism, the driving mechanism and the backstitch shaft are distributed in a cross dislocation manner through the connecting mechanism, when the driving mechanism does not operate, the force on the backstitch shaft is prevented from directly acting on the driving end of the driving mechanism, and the service life of the driving end is prolonged.
(2) The connecting block is arranged between the connecting mechanism and the screw rod, and moves on the screw rod when the screw rod rotates, so that the backstitch shaft is driven to rotate, and when the driving motor does not operate, the force on the backstitch shaft acts on the connecting block and the screw rod through the connecting mechanism, so that the action force is prevented from acting on the driving motor.
(3) According to the utility model, when the bolt and the mounting bolt are additionally arranged on the connecting rod, the connecting rod is detachably arranged on the crank through the bolt and the mounting bolt, so that the connection between the driving mechanism and the crank is conveniently disconnected, and each part is conveniently overhauled.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a schematic view of the structure of the crank, backstitch shaft, connecting rod and latch of the present utility model;
in the figure: 1. a fastening bolt; 2. backstitch shaft; 3. a through hole; 4. a crank; 5. a plug pin; 6. a driving motor; 7. a connecting rod; 8. a connecting block; 9. a mounting base; 10. a screw; 11. a mounting plate; 12. installing a bolt; 13. a first threaded hole; 14. a second threaded hole; 15. and (5) mounting holes.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the backstitch mechanism of a sewing machine provided by the utility model comprises: backstitch shaft 2 and drive backstitch shaft 2 carries out pivoted drive assembly.
In the utility model, as shown in fig. 1-3, the driving assembly comprises a driving mechanism for driving the backstitch shaft 2 to rotate and a connecting mechanism for driving and connecting the driving mechanism and the backstitch shaft 2, wherein the connecting mechanism is arranged between the backstitch shaft 2 and the driving mechanism, and the driving mechanism and the backstitch shaft 2 are staggered and distributed in a crisscross manner.
1-3, the driving mechanism comprises a screw rod 10 and a driving motor 6, wherein the output end of the driving motor 6 is connected to one end of the screw rod 10, the screw rod 10 is arranged in the radial direction of the backstitch shaft 2, a connecting block 8 is connected to the screw rod 10 in a threaded manner, and one end of the connecting mechanism is arranged on the connecting block 8.
1-3, coupling mechanism includes connecting rod 7 and crank 4, and crank 4 demountable installation is on backstitch axle 2, and the one end of connecting rod 7 is rotated and is installed on connecting block 8, and bolt 5 is installed to the other end level of connecting rod 7, and the one end that crank 4 deviates from backstitch axle 2 runs through there is mounting hole 15, and the one end slip of bolt 5 runs through mounting hole 15, and the one end that crank 4 deviates from bolt 5 is equipped with the mounting bolt 12 of spiro union on bolt 5.
When the driving mechanism provided by the utility model is used, the driving mechanism is arranged on the radial direction of the backstitch shaft 2, the driving mechanism can be the upper part, the lower part, the left side, the right side and the like of the backstitch shaft 2, the crank 4 is detachably arranged on the backstitch shaft 2, one end of the crank 4 is connected with the connecting block 8 on the screw 10 through the connecting rod 7, when the connection is carried out, the connecting rod 7 is detachably arranged on the crank 4 through the bolt 5 and the mounting bolt 12, when the connection between the crank 4 and the connecting rod 7 needs to be disconnected, only the fixing bolt is needed to be screwed out from the bolt 5, the bolt 5 is pulled out from the mounting hole 15, and when the connection is carried out, one end of the bolt 5 is inserted into the mounting hole 15, the mounting bolt 12 is screwed into the bolt 5 from the other side of the crank 4, and the connection between the connecting rod 7 and the crank 4 is completed;
when the device is used, the driving motor 6 is started to drive the screw rod 10 to rotate, so that the connecting block 8 moves on the screw rod 10, and the backstitch shaft 2 is driven to rotate through the connecting rod 7 and the crank 4;
the driving mechanism and the backstitch shaft 2 are distributed in a cross staggered mode through the connecting mechanism, when the driving mechanism does not operate, the force on the backstitch shaft 2 is prevented from directly acting on the driving motor 6 on the driving mechanism, and the service life of the driving motor 6 is prolonged.
Further, in order to mount the driving mechanism on the sewing machine, referring to fig. 1, a mounting seat 9 is mounted on a side of the screw 10 facing away from the backstitch shaft 2, two mounting plates 11 are symmetrically mounted on a side of the mounting seat 9 near the screw 10, and the screw 10 is rotatably mounted between the two mounting plates 11. The screw 10 is rotatably mounted on the mount 9 via the mounting plate 11, and the mount 9 is mounted in the sewing machine.
Further, in order to facilitate the installation of the mounting bolt 12 on the plug 5, referring to fig. 3, a second threaded hole 14 is formed in a side of the plug 5 close to the mounting bolt 12, one end of the mounting bolt 12 is screwed into the second threaded hole 14, a nut is disposed at one end of the mounting bolt 12 away from the plug 5, and an outer diameter of the nut is larger than an inner diameter of the mounting hole 15. A second threaded hole 14 is provided at an end of the bolt 5 facing away from the connecting rod 7, and an end of the mounting bolt 12 is screwed into the second threaded hole 14, so that the connecting rod 7 is rotatably mounted on the crank 4 via the bolt 5 and the mounting bolt 12.
Further, in order to detachably mount the crank 4 on the backstitch shaft 2, referring to fig. 3, one end of the crank 4 is penetrated with a through hole 3, the crank 4 is sleeved on the backstitch shaft 2 through the through hole 3, the crank 4 is provided with a fastening bolt 1, the outer wall of the crank 4 is provided with a first threaded hole 13 communicated with the through hole 3, one end of the fastening bolt 1 is screwed with the first threaded hole 13, and one end of the fastening bolt 1 is abutted on the backstitch shaft 2. The crank 4 is sleeved on the backstitch shaft 2 through the through hole 3, one end of the fastening bolt 1 is screwed on the crank 4 through the first threaded hole 13, and when one end of the fastening bolt 1 is abutted on the backstitch shaft 2, the crank 4 is prevented from moving or rotating on the backstitch shaft 2.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A sewing machine backstitch mechanism, comprising: the backstitch shaft (2) and drive backstitch shaft (2) carries out pivoted actuating assembly, actuating assembly is including driving backstitch shaft (2) carries out rotation driven actuating mechanism and will actuating mechanism carries out actuating connection's coupling mechanism with backstitch shaft (2), coupling mechanism installs between backstitch shaft (2) and actuating mechanism, just actuating mechanism and backstitch shaft (2) dislocation are crisscross distribution.
2. The backstitch mechanism of a sewing machine of claim 1, wherein: the driving mechanism comprises a screw (10) and a driving motor (6), wherein the output end of the driving motor (6) is connected with one end of the screw (10), the screw (10) is arranged on the radial direction of the backstitch shaft (2), the screw (10) is connected with a connecting block (8) in a threaded manner, and one end of the connecting mechanism is arranged on the connecting block (8).
3. A sewing machine backstitch mechanism according to claim 2, wherein: one side of the screw rod (10) deviating from the backstitch shaft (2) is provided with a mounting seat (9), one side of the mounting seat (9) close to the screw rod (10) is symmetrically provided with two mounting plates (11), and the screw rod (10) is rotatably arranged between the two mounting plates (11).
4. A sewing machine backstitch mechanism according to claim 2, wherein: coupling mechanism includes connecting rod (7) and crank (4), crank (4) demountable installation is on backstitch axle (2), the one end of connecting rod (7) is rotated and is installed on connecting block (8), bolt (5) are installed to the other end level of connecting rod (7), crank (4) deviate from the one end of backstitch axle (2) is run through there is mounting hole (15), the one end slip of bolt (5) runs through mounting hole (15), the one end that crank (4) deviate from bolt (5) is equipped with mounting bolt (12) of spiro union on bolt (5).
5. The backstitch mechanism of a sewing machine of claim 4, wherein: the bolt (5) is close to one side of the mounting bolt (12) and is provided with a second threaded hole (14), one end of the mounting bolt (12) is screwed in the second threaded hole (14), one end of the mounting bolt (12) deviating from the bolt (5) is provided with a nut, and the outer diameter of the nut is larger than the inner diameter of the mounting hole (15).
6. The backstitch mechanism of a sewing machine of claim 4, wherein: the one end of crank (4) is run through and is had through-hole (3), crank (4) are established on backstitch axle (2) through-hole (3) cover, install fastening bolt (1) on crank (4), set up first screw hole (13) with through-hole (3) intercommunication on the outer wall of crank (4), the one end of fastening bolt (1) connects soon and runs through first screw hole (13), just the one end butt of fastening bolt (1) is on backstitch axle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321565780.5U CN219908079U (en) | 2023-06-19 | 2023-06-19 | Backstitch mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321565780.5U CN219908079U (en) | 2023-06-19 | 2023-06-19 | Backstitch mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219908079U true CN219908079U (en) | 2023-10-27 |
Family
ID=88463746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321565780.5U Active CN219908079U (en) | 2023-06-19 | 2023-06-19 | Backstitch mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219908079U (en) |
-
2023
- 2023-06-19 CN CN202321565780.5U patent/CN219908079U/en active Active
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