CN214458697U - Electronic needle pitch adjusting structure - Google Patents
Electronic needle pitch adjusting structure Download PDFInfo
- Publication number
- CN214458697U CN214458697U CN202023273496.XU CN202023273496U CN214458697U CN 214458697 U CN214458697 U CN 214458697U CN 202023273496 U CN202023273496 U CN 202023273496U CN 214458697 U CN214458697 U CN 214458697U
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- backstitch
- cam
- motor
- motor mounting
- shaft
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Abstract
The utility model relates to a high-speed duplex flush joint technical field, concretely relates to electron gauge needle adjusts structure. The device has simple structure, low cost and easy installation and debugging. The utility model discloses a technical scheme includes the motor mounting panel, the motor mounting panel on be connected with the motor, the epaxial cover of motor is equipped with the cam, the cam upper portion of motor mounting panel be provided with the locating pin, the another side lower extreme of motor mounting panel be provided with the guide rail, be provided with the slider that can follow the guide rail and reciprocate in the guide rail, cam and slider set up from top to bottom, the lower extreme and the connection crank of slider be connected, connection crank links firmly with backstitch spanner axle, the other end and the needle pitch pendulum rod of backstitch spanner are connected, the other end of needle pitch pendulum rod has linked firmly the needle pitch connecting rod, the other end and the backstitch alignment jig of needle pitch connecting rod are connected, the middle part of backstitch alignment jig is connected with the work feed crank through the little connecting rod of work feed, the work feed crank is connected with the work feed shaft.
Description
Technical Field
The utility model relates to a high-speed duplex flush joint technical field, concretely relates to electron gauge needle adjusts structure.
Background
At present, the common sewing machine on the market controls the screwing-in depth of a needle pitch adjusting screw rod by rotating a needle pitch knob, so that the deflection angle of a needle pitch adjusting swing rod tangent to the spherical surface of the head of the screw rod is changed, and the purpose of controlling the needle pitch is achieved. In the sewing process, the backstitch wrench is pressed down to the lowest point, the cloth feeding tooth moves reversely, the cloth is fed backwards for reinforcement sewing, and the normal cloth feeding state is recovered when the wrench is loosened. The operation process is more complicated, and the automation degree is not very high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the motor control backstitch and adjust the gauge needle problem, provide an electron gauge needle and adjust structure, its simple structure, with low costs, easily installation and debugging.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an electronic gauge needle adjusting structure, characterized in that: the sewing machine comprises a motor mounting plate, the motor mounting plate on be connected with the motor, the epaxial cover of motor is equipped with the cam, the cam upper portion of motor mounting plate be provided with the locating pin, the another side lower extreme of motor mounting plate be provided with the guide rail, be provided with the slider that can follow the guide rail and reciprocate in the guide rail, cam and slider set up from top to bottom, the lower extreme and the connection crank of slider be connected, connection crank links firmly with the backstitch trigger axle, the other end and the gauge needle of backstitch trigger axle are adjusted the pendulum rod and are connected, the other end of gauge needle is adjusted the pendulum rod and has been linked firmly the gauge needle connecting rod, the other end and the backstitch alignment jig of gauge connecting rod are connected, the middle part of backstitch alignment jig is connected with the work feed crank through the little connecting rod of work feed, the work feed crank is connected with work feed shaft.
The two sides of the cam are integrally provided with shaft sleeves, the shaft sleeves at the two ends are respectively sleeved on the deep groove ball bearings, and the shaft sleeve at one end is fastened on a motor shaft through a screw.
The connecting crank is connected with the sliding block through a screw.
The deep groove ball bearings are respectively and fixedly arranged on the machine shell fixing plate and the motor mounting plate.
Compared with the prior art, the utility model, have following advantage:
1) the utility model discloses mechanical structure is simple, low in production cost, easy installation and debugging.
2) The utility model directly drives the cam to press the slide block to move downwards through the motor shaft, and the stitch length is changed from the maximum value of the front seam to the maximum value of the backstitch stitch length; after the sliding block moves to the lowest point and the backstitch reinforcement is finished, the motor shaft rotates reversely to drive the cam to reset to the position with the minimum radius, and the sliding block resets through the elastic force of the spring on the backstitch wrench shaft;
3) the utility model structurally fixes most parts on the motor mounting plate, is easy to be assembled and disassembled integrally, and can be directly used for punching on the casing to assemble the electronic needle pitch adjusting mechanism;
4) the utility model adopts the step motor in the control, the step motor has simple structure, the use is convenient, no error is accumulated, and the work can be carried out only by pulse signals;
5) the positioning pin is arranged on the motor mounting plate, so that the positioning pin has a limiting effect and prevents the cam from continuing to rotate in the positive direction when the cam rotates to the position with the maximum radius;
6) the utility model discloses be provided with a pair of deep groove ball bearing and guaranteed that the cam is good at the rotation in-process atress.
Drawings
FIG. 1 is a schematic view of the electronic needle pitch adjustment structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of the cam;
in the figure: 1. A left fixing plate; 2. A slider; 3. a guide rail; 4. a bearing; 5. a cam; 6. a stepping motor; 7. positioning pins; 8. a motor mounting plate; 9. a housing fixing plate; 10. a screw; 11. a connecting crank; 12. backstitch wrench shaft; 13. a needle pitch adjusting swing rod; 14. a needle pitch link; 15. a backstitch adjusting frame; 16. a cloth feeding crank; 17. a small cloth feeding connecting rod; 18. a cloth feeding shaft; 19. a spring.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to the accompanying drawings and examples.
The utility model discloses drive the cam by the motor shaft and rotate, arouse the slider up-and-down motion for through connecting the backstitch spanner axle that crank and slider link to each other and rotating corresponding angle, under backstitch alignment jig drive work of work feed shaft pivoted, the displacement volume and the work feed direction of control dental articulator.
The utility model provides an electronic needle distance adjusting structure, including motor mounting panel 8 and motor mounting panel 9, motor mounting panel 8 on be connected with motor 6, the epaxial cover of motor 6 is equipped with cam 5, cam 5 both sides an organic whole is provided with the axle sleeve, as shown in figure 3, both ends axle sleeve is respectively overlap and is located deep groove ball bearing 4, one end axle sleeve fastens on motor 6 epaxially through the screw, deep groove ball bearing 4 sets firmly on casing fixed plate 9 and motor mounting panel 8 respectively;
the upper portion of the cam 5 of the motor mounting plate 8 is provided with a positioning pin 7 for preventing the cam 7 from continuing to rotate upwards, the lower end of the other side of the motor mounting plate 8 is provided with a guide rail 3, a slide block 2 capable of moving up and down along the guide rail 3 is arranged in the guide rail 3, the cam 5 and the slide block 2 are arranged up and down, the lower end of the slide block 2 is connected with a connecting crank 11 through a screw 10, the connecting crank 11 is fixedly connected with a backstitch trigger shaft 12, the other end of the backstitch trigger shaft 12 is connected with a needle pitch adjusting swing rod 13, the other end of the needle pitch adjusting swing rod 13 is fixedly connected with a needle pitch connecting rod 14, the other end of the needle pitch connecting rod 14 is connected with a backstitch adjusting frame 15, the middle of the backstitch adjusting frame 15 is connected with a cloth feeding crank 16 through a small cloth feeding connecting rod 17, and the cloth feeding crank 16 is connected with a cloth feeding shaft 18.
Two ends of the spring 19 are hinged on a mounting plate of the sewing machine shell and hung on the backstitch adjusting frame 15.
The utility model discloses an assembling process: the machine shell fixing plate 9 is fixed on the right side surface of a sewing machine shell, the deep groove ball bearing 4 is knocked into a bearing hole, one side of an un-threaded hole of the installation cam 5 is connected with the inner ring of a left bearing, the stepping motor 6 is fixed onto a motor installation plate, the pin 7 is fixed onto the motor installation plate 8 through a screw, the deep groove ball bearing 4 is knocked into a bearing hole seat, the guide rail 3 is installed on the motor installation plate 8, the screw 10 extends out of a sinking platform of the matching surface of the sliding block 2 and the guide rail 3, the sliding block 2 and the connecting crank 11 are connected, and a motor shaft extends into the inner wall of a cam shaft and is fastened through two screws. The assembled motor mounting plate 8 is fastened on the housing fixing plate 9 by two screws, and finally, the left fixing plate 1 is installed to complete the assembly of the mechanism.
The utility model discloses a working process: at the initial position, the lowest point of the radius of the cam 5 is tangent to the curved surface at the top end of the slide block 2, and at the moment, the position of the positioning pin 7 with the maximum backstitch distance is the position with the maximum backstitch distance, when backstitch reinforcement is needed, the stepping motor 6 is started, the cam 5 rotates along with the rotation of the cam 5, the slide block 2 is gradually pressed to the lowest position, in the process, the downward movement of the slide block 2 causes the connecting crank 11 to drive the backstitch wrench shaft 12 to rotate by 24 degrees, the backstitch connecting rod 14 fixed on the backstitch adjusting swing rod 13 swings, the backstitch adjusting frame 15 is turned over, the small cloth feeding connecting rod 17 is used for connecting the backstitch adjusting frame 15 and the cloth feeding crank 16, the cloth feeding crank 16 moves and drives the cloth feeding shaft 18 to rotate, so that the movement direction and the displacement of the tooth frame are adjusted, and the adjustment of the maximum backstitch distance is achieved. After the sewing reinforcement is finished, the stepping motor 6 rotates reversely, the cam 5 is reset to the position of the positioning pin 7 with the maximum needle pitch, and the slide block 2 is reset by the elasticity of the spring 19 arranged on the backstitch wrench shaft 12.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. An electronic gauge needle adjusting structure, characterized in that: comprises a motor mounting plate (8), the motor mounting plate (8) is connected with a motor (6), the shaft of the motor (6) is sleeved with a cam (5), the upper part of the cam (5) of the motor mounting plate (8) is provided with a positioning pin (7), the lower end of the other side of the motor mounting plate (8) is provided with a guide rail (3), a slide block (2) which can move up and down along the guide rail (3) is arranged in the guide rail (3), the cam (5) and the slide block (2) are arranged up and down, the lower end of the slide block (2) is connected with a connecting crank (11), the connecting crank (11) is fixedly connected with a backstitch wrench shaft (12), the other end of the backstitch wrench shaft (12) is connected with a backstitch adjusting swing rod (13), the other end of the backstitch adjusting swing rod (13) is fixedly connected with a needle distance connecting rod (14), and the other end of the needle distance connecting rod (14) is connected with a backstitch adjusting frame (15), the middle part of the backstitch adjusting frame (15) is connected with a cloth feeding crank (16) through a small cloth feeding connecting rod (17), and the cloth feeding crank (16) is connected with a cloth feeding shaft (18).
2. An electronic gauge adjustment structure according to claim 1, characterized in that: the two sides of the cam (5) are integrally provided with shaft sleeves, the shaft sleeves at the two ends are respectively sleeved on the deep groove ball bearing (4), and the shaft sleeve at one end is fastened on the shaft of the motor (6) through a screw.
3. An electronic pitch adjustment structure as claimed in claim 1 or 2, wherein: the connecting crank (11) is connected with the sliding block (2) through a screw (10).
4. An electronic gauge adjustment structure according to claim 2, characterized in that: the deep groove ball bearing (4) is respectively and fixedly arranged on the machine shell fixing plate (9) and the motor mounting plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023273496.XU CN214458697U (en) | 2020-12-30 | 2020-12-30 | Electronic needle pitch adjusting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023273496.XU CN214458697U (en) | 2020-12-30 | 2020-12-30 | Electronic needle pitch adjusting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214458697U true CN214458697U (en) | 2021-10-22 |
Family
ID=78109378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023273496.XU Active CN214458697U (en) | 2020-12-30 | 2020-12-30 | Electronic needle pitch adjusting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214458697U (en) |
-
2020
- 2020-12-30 CN CN202023273496.XU patent/CN214458697U/en active Active
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