CN215404892U - Gear feeding mechanism of sewing machine - Google Patents
Gear feeding mechanism of sewing machine Download PDFInfo
- Publication number
- CN215404892U CN215404892U CN202121994987.5U CN202121994987U CN215404892U CN 215404892 U CN215404892 U CN 215404892U CN 202121994987 U CN202121994987 U CN 202121994987U CN 215404892 U CN215404892 U CN 215404892U
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- China
- Prior art keywords
- cloth feeding
- gear
- shaft
- motor
- sewing machine
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Abstract
The utility model belongs to the technical field of sewing machines, and relates to a gear feeding mechanism of a sewing machine, which comprises a main motor, a cloth feeding motor, a tooth frame and feeding teeth fixed on the upper end surface of the tooth frame, wherein the main motor is connected with one end of the tooth frame through a tooth lifting mechanism, the cloth feeding motor is connected with the other end of the tooth frame through a cloth feeding mechanism, the cloth feeding mechanism comprises a cloth feeding shaft, a cloth feeding swinging seat is fixed on the cloth feeding shaft, the cloth feeding swinging seat is hinged with one end of the tooth frame, one end of the cloth feeding shaft is sleeved with a driven gear, an output shaft of the cloth feeding motor is sleeved with a driving gear, and the driving gear is meshed with the driven gear. The utility model provides a gear feeding mechanism of a sewing machine, which has the advantages of simple structure, stable operation and high transmission accuracy.
Description
Technical Field
The utility model belongs to the technical field of sewing machines, and relates to a gear feeding mechanism of a sewing machine.
Background
The feeding mechanism of the sewing machine mainly comprises a tooth frame, feeding teeth fixedly arranged on the upper end surface of the middle of the tooth frame, a tooth lifting mechanism used for driving the tooth frame to do up-and-down reciprocating movement, a cloth feeding mechanism used for driving the tooth frame to do front-and-back reciprocating movement, and a motor used for driving the tooth lifting mechanism and the cloth feeding mechanism. At present, a motor, a tooth lifting mechanism and a cloth feeding mechanism mainly have two structures: the structure I is characterized in that a motor is used for simultaneously driving a feed lifting mechanism and a cloth feeding mechanism to realize a sewing function, the structure can realize sewing with different needle pitches through adjustment of a needle pitch mechanism, but only one sewing track can be realized; and the second structure is that two motors are used for respectively driving the tooth lifting mechanism and the cloth feeding mechanism, and the cloth feeding amount can be freely controlled, so that various patterns can be easily sewn. The existing cloth feeding mechanism has the defects of complex transmission structure, unstable operation and insufficient transmission accuracy.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides the gear feeding mechanism of the sewing machine, which has the advantages of simple structure, stable operation and high transmission accuracy.
In order to solve the above technical problems, the object of the present invention is achieved by the following technical solutions:
a gear feeding mechanism of a sewing machine comprises a main motor, a cloth feeding motor, a tooth frame and feeding teeth fixed on the upper end face of the tooth frame, wherein the main motor is connected with one end of the tooth frame through a tooth lifting mechanism, the cloth feeding motor is connected with the other end of the tooth frame through the cloth feeding mechanism, the cloth feeding mechanism comprises a cloth feeding shaft, a cloth feeding swinging seat is fixed on the cloth feeding shaft, the cloth feeding swinging seat is hinged to one end of the tooth frame, a driven gear is sleeved at one end of the cloth feeding shaft, a driving gear is sleeved on an output shaft of the cloth feeding motor, and the driving gear is meshed with the driven gear.
In the gear feeding mechanism of the sewing machine, the driven gear is an incomplete gear, and the driven gear is always meshed with the driving gear when the work angle of the cloth feeding motor swings.
In the above-mentioned gear feeding mechanism for a sewing machine, the gear teeth of the driving gear and the driven gear are preferably helical teeth.
In the gear feeding mechanism of the sewing machine, the output shaft of the cloth feeding motor is positioned below the cloth feeding shaft, and the gear tooth part of the driven gear is positioned at the lower half part of the driven gear.
In the gear feeding mechanism of the sewing machine, the driving gear is fixedly connected with an output shaft of the cloth feeding motor through a plurality of radial fixing pins, and the driven gear is fixedly connected with the cloth feeding shaft through a plurality of radial fixing pins.
In the gear feeding mechanism of the sewing machine, the cloth feeding motor is fixed in the sewing machine base through the motor support, a motor shaft of the cloth feeding motor is arranged towards the direction of the tooth frame, and the cloth feeding motor is preferably a stepping motor.
In the gear feeding mechanism of the sewing machine, a first cloth feeding sleeve is sleeved on one end, opposite to the cloth feeding motor, of the cloth feeding shaft, a second cloth feeding sleeve is sleeved on the cloth feeding shaft between the driven gear and the cloth feeding swing seat, and the cloth feeding shaft is rotatably supported in the sewing machine base through the first cloth feeding sleeve and the second cloth feeding sleeve.
In the gear feeding mechanism of the sewing machine, the output shaft of the main motor is in transmission connection with the main shaft, the main shaft is sleeved with a first synchronizing wheel, one end of the feed lifting shaft is sleeved with a second synchronizing wheel, the first synchronizing wheel and the second synchronizing wheel are in transmission connection through a synchronous belt, and the feed lifting shaft is rotatably supported in the sewing machine base through a bearing or a sleeve.
In the gear feeding mechanism of the sewing machine, a swing pin seat is sleeved at one end, opposite to the second synchronizing wheel, of the feed lifting rock shaft, a swing pin is eccentrically arranged on the swing pin seat, the swing pin is hinged to the feed lifting rock swing seat, the feed lifting rock swing seat is hinged to the feed lifting rock frame, and the eccentric arrangement of the swing pin means that the axis of a pin shaft, hinged to the feed lifting rock swing seat, of the swing pin is located at the eccentric position of the axis of the feed lifting rock shaft.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model optimizes the transmission structure of the cloth feeding mechanism of the sewing machine, performs transmission through the driving gear and the driven gear which are mutually meshed, further optimizes other cloth feeding mechanisms and the feed lifting teeth mechanism, and has the advantages of simple structure, stable operation and high transmission accuracy.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is another perspective view of the present invention;
FIG. 3 is a transmission structure diagram of the cloth feeding mechanism of the present invention;
reference numerals: 1. a main motor; 2. a cloth feeding motor; 3. a dental articulator; 4. feeding teeth; 5. a cloth feeding shaft; 6. a cloth feeding swing seat; 7. a driven gear; 8. a driving gear; 9. a motor bracket; 10. a cloth feeding sleeve I; 11. a second cloth feeding sleeve; 12. a main shaft; 13. a first synchronizing wheel; 14. a feed lifting shaft; 15. a second synchronizing wheel; 16. a synchronous belt; 17. a rocking pin boss; 18. a swing pin; 19. and a swing seat for the lifting tooth.
Detailed Description
The utility model is further described in the following with reference to specific embodiments in conjunction with the accompanying drawings, see fig. 1-3:
a gear feeding mechanism of a sewing machine comprises a main motor 1, a cloth feeding motor 2, a tooth frame 3 and feeding teeth 4 fixed on the upper end face of the tooth frame 3, wherein the main motor 1 is connected with one end of the tooth frame 3 through a tooth lifting mechanism, the cloth feeding motor 2 is connected with the other end of the tooth frame 3 through a cloth feeding mechanism, the cloth feeding mechanism comprises a cloth feeding shaft 5, a cloth feeding swing seat 6 is fixed on the cloth feeding shaft 5, the cloth feeding swing seat 6 is hinged to one end of the tooth frame 3, a driven gear 7 is sleeved at one end of the cloth feeding shaft 5, a driving gear 8 is sleeved on an output shaft of the cloth feeding motor 2, and the driving gear 8 is meshed with the driven gear 7.
Preferably, the driven gear 7 is an incomplete gear, the driven gear 7 is always meshed with the driving gear 8 when the work angle of the cloth feeding motor 2 swings, and the driven gear 7 can enable the layout of a transmission structure to be more compact and save cost.
Preferably, the teeth of the driving gear 8 and the driven gear 7 are preferably helical teeth.
The relative layout mode of the cloth feeding motor 2 and the cloth feeding shaft 5 of the embodiment is as follows: the output shaft of the cloth feeding motor 2 is positioned below the cloth feeding shaft 5, and the gear tooth part of the driven gear 7 is positioned at the lower half part of the driven gear 7.
The drive gear 8 and the driven gear 7 of the present embodiment are fixed by: the driving gear 8 is fixedly connected with an output shaft of the cloth feeding motor 2 through a plurality of radial fixing pins, and the driven gear 7 is fixedly connected with the cloth feeding shaft 5 through a plurality of radial fixing pins.
The cloth feeding motor 2 of the present embodiment is mounted in the following manner: the cloth feeding motor 2 is fixed in the sewing machine base through a motor support 9, a motor shaft of the cloth feeding motor 2 is arranged towards the direction of the tooth frame 3, and the cloth feeding motor 2 is preferably a stepping motor.
The cloth feed shaft 5 of the present embodiment is mounted in the following manner: one end of the cloth feeding shaft 5 opposite to the cloth feeding motor 2 is sleeved with a first cloth feeding sleeve 10, a second cloth feeding sleeve 11 is sleeved on the cloth feeding shaft 5 between the driven gear 7 and the cloth feeding swing seat 6, and the cloth feeding shaft 5 is rotatably supported in the sewing machine base through the first cloth feeding sleeve 10 and the second cloth feeding sleeve 11.
The embodiment also optimizes the tooth lifting mechanism: the output shaft of the main motor 1 is in transmission connection with a main shaft 12, a first synchronizing wheel 13 is sleeved on the main shaft 12, a second synchronizing wheel 15 is sleeved at one end of a feed lifting shaft 14, the first synchronizing wheel 13 is in transmission connection with the second synchronizing wheel 15 through a synchronous belt 16, and the feed lifting shaft 14 is rotatably supported in a sewing machine base through a bearing or a sleeve.
Furthermore, a swing pin seat 17 is sleeved at one end, opposite to the second synchronizing wheel 15, of the feed lifting rock shaft 14, a swing pin 18 is eccentrically arranged on the swing pin seat 17, the swing pin 18 is hinged to the feed lifting rock swing seat 19, the feed lifting rock swing seat 19 is hinged to the tooth frame 3, and the eccentric arrangement of the swing pin 18 means that the axis of a pin shaft, hinged to the feed lifting rock swing seat 19, of the swing pin 18 is located at the eccentric position of the axis of the feed lifting rock shaft 14.
The specific working process is as follows: when the output shaft of the cloth feeding motor 2 rotates in a reciprocating way within a certain angle range, the driving gear 8 rotates along with the output shaft, the driven gear 7 meshed with the driving gear drives the cloth feeding shaft 5 to rotate, the cloth feeding shaft 5 drives the cloth feeding swinging seat 6 to swing when rotating, and the cloth feeding swinging seat 6 drives the tooth frame 3 to swing back and forth when swinging; when the main motor 1 rotates circumferentially, the main shaft 12 rotates along with the main shaft, the tooth lifting shaft 14 rotates along with the main shaft through transmission of the synchronous belt pulley, the rotation of the tooth lifting shaft 14 drives the swing pin 18 to rotate eccentrically, the tooth lifting swing seat 19 swings up and down, the tooth rack 3 is driven to swing up and down, and the front and back swing and the up and down swing of the tooth rack 3 complete cloth feeding.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.
Claims (8)
1. The gear feeding mechanism of the sewing machine comprises a main motor (1), a cloth feeding motor (2), a tooth frame (3) and feeding teeth (4) fixed to the upper end face of the tooth frame (3), wherein the main motor (1) is connected with one end of the tooth frame (3) through a tooth lifting mechanism, the cloth feeding motor (2) is connected with the other end of the tooth frame (3) through the cloth feeding mechanism, the gear feeding mechanism is characterized in that the cloth feeding mechanism comprises a cloth feeding shaft (5), a cloth feeding swing seat (6) is fixed to the cloth feeding shaft (5), the cloth feeding swing seat (6) is hinged to one end of the tooth frame (3), a driven gear (7) is sleeved at one end of the cloth feeding shaft (5), a driving gear (8) is sleeved on an output shaft of the cloth feeding motor (2), and the driving gear (8) is meshed with the driven gear (7).
2. The gear feeding mechanism of sewing machine according to claim 1, characterized in that the driven gear (7) is an incomplete gear, and the driven gear (7) and the driving gear (8) are always engaged when the cloth feeding motor (2) swings at the working angle.
3. The gear feeding mechanism of sewing machine according to claim 2, wherein the output shaft of the cloth feeding motor (2) is located below the cloth feeding shaft (5), and the gear tooth portion of the driven gear (7) is located at the lower half portion of the driven gear (7).
4. The gear feeding mechanism of sewing machine according to claim 1, characterized in that the driving gear (8) is fastened to the output shaft of the feed motor (2) by means of several radial fixing pins, and the driven gear (7) is fastened to the feed shaft (5) by means of several radial fixing pins.
5. The gear feeding mechanism of sewing machine according to claim 1, wherein the cloth feeding motor (2) is fixed in the sewing machine base through a motor bracket (9), and an output shaft of the cloth feeding motor (2) is arranged towards the direction of the tooth frame (3).
6. The gear feeding mechanism of the sewing machine as claimed in claim 1, wherein a first cloth feeding sleeve (10) is sleeved on one end of the cloth feeding shaft (5) opposite to the cloth feeding motor (2), a second cloth feeding sleeve (11) is sleeved on the cloth feeding shaft (5) between the driven gear (7) and the cloth feeding swing base (6), and the cloth feeding shaft (5) is rotatably supported in the sewing machine base through the first cloth feeding sleeve (10) and the second cloth feeding sleeve (11).
7. The gear feeding mechanism of the sewing machine as claimed in claim 1, wherein the output shaft of the main motor (1) is in transmission connection with a main shaft (12), a first synchronizing wheel (13) is sleeved on the main shaft (12), a second synchronizing wheel (15) is sleeved at one end of the feed lifting shaft (14), and the first synchronizing wheel (13) and the second synchronizing wheel (15) are in transmission connection through a synchronous belt (16).
8. The gear feeding mechanism of the sewing machine as claimed in claim 7, wherein a swing pin seat (17) is sleeved on one end of the feed lifting rock shaft (14) opposite to the second synchronizing wheel (15), a swing pin (18) is eccentrically arranged on the swing pin seat (17), the swing pin (18) is hinged with the feed lifting rock swing seat (19), and the feed lifting rock swing seat (19) is hinged with the feed lifting rock frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994987.5U CN215404892U (en) | 2021-08-23 | 2021-08-23 | Gear feeding mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121994987.5U CN215404892U (en) | 2021-08-23 | 2021-08-23 | Gear feeding mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215404892U true CN215404892U (en) | 2022-01-04 |
Family
ID=79664084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121994987.5U Expired - Fee Related CN215404892U (en) | 2021-08-23 | 2021-08-23 | Gear feeding mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215404892U (en) |
-
2021
- 2021-08-23 CN CN202121994987.5U patent/CN215404892U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220104 |