CN217678035U - Automatic lift presser foot and integrative structure of pine line and tortuous sewing machine - Google Patents
Automatic lift presser foot and integrative structure of pine line and tortuous sewing machine Download PDFInfo
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- CN217678035U CN217678035U CN202121671240.6U CN202121671240U CN217678035U CN 217678035 U CN217678035 U CN 217678035U CN 202121671240 U CN202121671240 U CN 202121671240U CN 217678035 U CN217678035 U CN 217678035U
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Abstract
The utility model relates to a sewing machine technical field especially relates to an automatic lift presser foot and integrative structure of pine line and tortuous sewing machine, which comprises a motor, the action of motor is controlled by the control box, be connected with on the output shaft of motor and feed the piece, it is in to feed the piece follow under the drive of motor the output shaft axis direction of motor removes. The utility model uses the axial movement action of the feeding piece controlled by the motor, can realize the functions of lifting the presser foot and clamping the loose wire by corresponding driving with a smaller action stroke, has stable and accurate driving control, simple driving structure and high action response speed; the motor is used as a driving source, so that two actions of lifting the presser foot and clamping and loosening the thread are realized, the driving source is reduced, the structure is simplified, the occupied space is small, and the design and installation cost is reduced; and the motor drive replaces the electromagnet drive, so that the noise is reduced, and the stability is improved.
Description
Technical Field
The utility model relates to a sewing machine technical field especially relates to an automatic lift presser foot and integrative structure of pine line and tortuous sewing machine.
Background
At present, generally, the functions of thread loosening and presser foot lifting are realized in the existing sewing machine product, the two functions are mostly independent two functions, and the two functions are controlled to act through corresponding driving pieces respectively, so that the sewing machine has various parts, crowded internal structure and high design and installation cost.
In addition, in the prior art, many driving parts for realizing the functions of clamping and loosening the thread and lifting the presser foot are electromagnets, so that the problems of low response speed and high noise exist, the stroke of the electromagnets cannot be flexibly changed, the vibration is easy to generate in the action, and the operation is unstable.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an automatic presser foot lifting and thread loosening integrated structure and zigzag sewing machine.
In order to solve the technical problem, the technical scheme of the utility model is that:
an automatic presser foot lifting and thread loosening integrated structure comprises a motor, wherein the action of the motor is controlled by a control box, an output shaft of the motor is connected with a feeding piece, and the feeding piece moves along the axial direction of the output shaft of the motor under the driving of the motor; the feeding piece is abutted against the presser foot lifting driving component, and the presser foot lifting driving component is extruded to generate displacement so as to drive the presser foot to move up and down; the feeding part is pushed against the thread loosening driving component to deform, so that the thread loosening action of the thread clamping device is driven.
Compare prior art, the utility model has the advantages that:
the axial movement of the feeding piece controlled by the motor can correspondingly drive to realize the functions of lifting the presser foot and clamping and loosening the thread with a smaller movement stroke, the driving control is stable and accurate, the driving structure is simple, and the action response speed is high;
the motor is used as a driving source, so that two actions of lifting the presser foot and clamping and loosening the thread are realized, the driving source is reduced, the structure is simplified, the occupied space is small, and the design and installation cost is reduced;
and the motor drive replaces the electromagnet drive, so that the noise is reduced, and the stability is improved.
Furthermore, the feeding piece comprises an ejector rod, the ejector rod is connected with an output shaft of the motor through threads, the motor rotates forwards or backwards to drive the ejector rod to move forwards or backwards for a fixed distance, the motor controls the ejector rod to move linearly, the action stroke is small, and the stability is high.
Furthermore, an elastic ring is fixedly sleeved on the ejector rod, the presser foot lifting driving assembly comprises a presser foot lifting executing piece and a presser foot lifting transmission piece, the presser foot is connected to the presser foot lifting executing piece, the presser foot lifting transmission piece is respectively abutted to the presser foot lifting executing piece and the elastic ring, the elastic ring moves along the axial direction of the output shaft of the motor under the driving of the ejector rod, the elastic ring is pushed to move in an extruding mode, and the structure is simplified, and the transmission is stable.
Furthermore, the presser foot lifting transmission part comprises a presser foot lifting sliding sheet, the middle part of the presser foot lifting sliding sheet is fixed through a fastening piece and can rotate along the fastening piece, one end of the lower side of the presser foot lifting sliding sheet abuts against the presser foot lifting execution piece, the upper part of the presser foot lifting sliding sheet is connected with a pull rod, the pull rod provides a pulling force for the presser foot lifting sliding sheet to lift the presser foot lifting execution piece and the presser foot, and the pulling force is used for completing the action of the presser foot lifting when the elastic ring is loosened.
Furthermore, the other end of the lower side of the lifting and pressing sliding sheet abuts against the elastic ring, an inclined surface is arranged on the lifting and pressing sliding sheet, the elastic ring abuts against the inclined surface when moving axially to generate ejection force on the lifting and pressing sliding sheet, and the elastic ring abuts against the lifting and pressing sliding sheet to balance the pulling force when the presser foot is not lifted.
Furthermore, the other end of the lower side of the pressure lifting sliding sheet abuts against the elastic ring, the elastic ring is provided with an inclined surface, when the elastic ring moves axially, the inclined surface abuts against the pressure lifting sliding sheet to generate ejection force on the pressure lifting sliding sheet, and when the pressure foot is not lifted, the elastic ring abuts against the pressure lifting sliding sheet to balance the pulling force.
Furthermore, the presser foot lifting driving part comprises a pressure lifting rod, the presser foot is connected to the lower end of the pressure lifting rod, a pressure lifting connecting block is fixedly sleeved on the pressure lifting rod, one end of the lower side of the pressure lifting sliding sheet abuts against the pressure lifting connecting block, and a pressure spring used for returning the pressure lifting connecting block is sleeved on the pressure lifting rod, so that the return of the presser foot is facilitated.
Furthermore, the loose wire driving assembly comprises a fixed plate with a fixed position, the wire clamping unit comprises two wire clamping pieces, one wire clamping piece is a fixed wire clamping piece and is fixedly arranged on the fixed plate, the other wire clamping piece is a movable wire clamping piece, the two wire clamping pieces are connected through springs to clamp wires in a mutually-attached mode, and the wire clamping pieces are good in mobility.
Further, the thread tension device group install in on the fixed plate, the fixed plate orientation fixed mounting has deformable pine line board on the one side of ejector pin, loose line board with the butt has the pine line pole that is used for the ejection between the thread tension device group activity thread tension piece, ejector pin axial end orientation pine line board pushes away the pine line pole through deformation, and transmission efficiency is high.
A zigzag sewing machine comprises a machine head, a machine base and a machine frame, and further comprises the automatic presser foot lifting and thread loosening integrated structure.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a presser foot lifting mechanism of FIG. 1;
FIG. 3 is a schematic view of the thread releasing mechanism of FIG. 1;
fig. 4 is an exploded view of the thread releasing mechanism of fig. 3.
Reference numerals: 11. a pull rod; 12. a bevel; 13. a motor; 14. a top rod; 15. an elastic ring; 16. lifting and pressing the sliding sheet; 17. lifting and pressing the connecting block; 18. lifting the pressure lever; 19. a presser foot; 20. a pressure spring; 21. loosening the thread plate; 22. a fixing plate; 23. a thread releasing rod; 24. a wire clamping set.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so as to make the technical solutions of the present invention easier to understand and grasp.
Example (b):
referring to fig. 1 to 4, the present embodiment provides an integrated structure of automatic presser foot lifting and thread loosening, which is mainly used for realizing the functions of presser foot lifting and thread loosening in a zigzag sewing machine.
The embodiment comprises a motor 13, the action of the motor 13 is controlled by a control box, a feeding part is connected to an output shaft of the motor 13, the feeding part is driven by the motor 13 to move along the axis direction of the output shaft of the motor 13, the feeding part comprises a push rod 14 and an elastic ring 15, the elastic ring 15 is fixedly sleeved on the push rod 14, the push rod 14 is connected with the output shaft of the motor 13 through threads, one end of the push rod 14 is axially and slidably connected to a frame of the sewing machine and can only perform axial translation action due to limited rotation of the frame, the motor 13 rotates forwards or backwards to drive the push rod 14 to move forwards or backwards for a fixed distance, and the moving distance sets a controller according to actual working requirements so as to accurately control the action stroke of the motor 13.
The embodiment uses the axial movement action of the feeding piece controlled by the motor, the functions of lifting the presser foot and clamping and loosening the thread can be realized by correspondingly driving with a smaller action stroke, the driving control is stable and accurate, the driving structure is simple, and the action response speed is high.
Referring to fig. 1 and 2, the components for implementing the function of lifting the presser foot in this embodiment include a presser foot 19 and a presser foot lifting driving assembly, the presser foot lifting driving assembly includes a presser foot lifting actuating member and a presser foot lifting driving member, the presser foot 19 is movably connected to the presser foot lifting actuating member, the presser foot lifting driving member abuts against the presser foot lifting actuating member and the elastic ring 15, and the elastic ring 15 drives the presser foot lifting driving member to lift the presser foot 19 up and down through the presser foot lifting actuating member.
The pressure foot lifting driving part comprises a pressure lifting rod 18, the pressure foot 19 is movably connected to the lower end of the pressure lifting rod 18, a pressure lifting connecting block 17 is fixedly sleeved on the pressure lifting rod 18, and a pressure spring 20 for returning the pressure lifting connecting block 17 is sleeved on the pressure lifting rod 18; the pressure raising and pressing foot transmission part comprises a pressure raising and pressing sheet 16, the middle of the pressure raising and pressing sheet 16 is fixed through a fastening piece and can rotate along the fastening piece, one end of the lower side of the pressure raising and pressing sheet 16 abuts against the pressure raising and pressing connecting block 17, the other end of the lower side of the pressure raising and pressing sheet 16 abuts against the elastic ring 15, one of the pressure raising and pressing sheet 16 and the elastic ring 15 is provided with an inclined surface 12, the inclined surface 12 is arranged on the pressure raising and pressing sheet 16 and is thick at the top and thin at the bottom, the inclined surface 12 is preferably arranged on the pressure raising and pressing sheet 16 to facilitate processing, the upper part of the pressure raising and pressing sheet 16 is movably connected with a pull rod 11, the pull rod 11 provides a pulling force for the pressure raising and pressing sheet 16, and the pulling force provided by the pull rod 11 for the pressure raising and pressing rod 18 and the pressure pressing foot 19 through the pressure raising and pressing connecting block 17.
When the presser foot lifting action is not performed, the presser foot 19 is not lifted, at this time, the abutting position of the pressure lifting sliding piece 16 and the elastic ring 15 is at the lower side of the inclined plane 12, because the elastic ring 15 has a pressing force on the pressure lifting sliding piece 16, further, the inclined plane 12 enables the elastic ring 15 to have a lifting force on the pressing end when pressing the pressure lifting sliding piece 16, and further, the elastic ring 15 presses and lifts the pressure lifting sliding piece 16 to resist the pulling force of the pull rod 11.
When the presser foot lifting action is executed, the motor 13 is controlled to rotate through the controller, the mandril 14 drives the elastic ring 15 to move so as to loosen the pressure lifting sliding sheet 16, the pressure lifting sliding sheet 16 swings under the pulling force of the pull rod 11 at the moment, and the pressure lifting rod 18 is lifted through the pressure lifting connecting block 17 so as to realize the action of lifting the presser foot.
During the return process of the presser foot lifting function, the controller controls the motor 13 to rotate reversely to drive the elastic ring 15 to extrude the inclined surface 12 of the presser foot lifting sliding sheet 16 again, so as to push the presser foot lifting sliding sheet 16 upwards again to resist the pulling force of the pull rod 11, and at the moment, the presser bar 18 is driven by the resilience force of the pressure spring 20 to return downwards.
Referring to fig. 3 and 4, the components for implementing the wire clamping and releasing function in this embodiment include a wire clamping set 24 for clamping a wire and a wire releasing driving assembly, the wire releasing driving assembly includes a fixed plate 22 with a fixed position, the wire clamping set 24 includes two wire clamping sheets, one of the two wire clamping sheets is a fixed wire clamping sheet and is fixedly mounted on the fixed plate 22, the other wire clamping sheet is a movable wire clamping sheet, and the two wire clamping sheets are connected by a spring to be attached to each other for clamping the wire; the thread tension device group 24 install in on the fixed plate 22, the fixed plate 22 orientation fixed mounting has deformable pine board 21 on the one side of ejector pin 14, loose board 21 with the butt has the pine pole 23 that is used for the ejection between the thread tension device group 24 the activity thread tension piece, 14 axial ends orientation of ejector pin the pine board 21.
When the thread clamping set 24 clamps the thread, the ejector rod 14 does not apply force to the thread loosening plate 21.
When the thread loosening action is executed, the motor 13 is controlled to rotate through the controller, so that the ejector rod 14 is driven to move a fixed distance towards the side of the thread loosening plate 21, the ejector rod 14 applies pressure to the thread loosening plate 21 to cause the thread loosening plate 21 to deform, the thread loosening plate 21 pushes the thread loosening rod 23 towards the direction of the thread clamping set 24, the thread loosening rod 23 pushes the movable thread clamping pieces and extrudes the spring, and then the two thread clamping pieces are separated, so that the thread loosening action is realized.
When the wire clamping and releasing function is in a returning process, the controller controls the motor 13 to reversely rotate to drive the ejector rod 14 to be separated from the wire releasing plate 21, then the wire releasing plate 21 is deformed and restored, the wire releasing rod 23 is released, and then the movable wire clamping piece is attached to the fixed wire clamping piece again due to the resilience of the spring, so that the wire clamping action is realized.
The embodiment realizes the functions of lifting the presser foot and clamping and loosening the thread through one driving source, and has a simple structure and high stability.
Another object of the utility model is to provide a zigzag sewing machine, including aircraft nose, frame and frame, still include foretell an automatic lift presser foot and pine line body structure.
Above only the typical example of the utility model discloses, in addition, the utility model discloses can also have other multiple concrete implementation manners, all adopt the technical scheme who equates replacement or equivalent transform formation, all fall in the utility model discloses the scope of claiming.
Claims (10)
1. An automatic presser foot lifting and thread loosening integrated structure is characterized by comprising a motor (13), wherein the action of the motor (13) is controlled by a control box, an output shaft of the motor (13) is connected with a feeding piece, and the feeding piece moves along the axial direction of the output shaft of the motor (13) under the driving of the motor (13); the feeding piece is abutted against the presser foot lifting driving component, and the presser foot lifting driving component is extruded to generate displacement so as to drive the presser foot (19) to move up and down; the feeding part is pushed to deform the thread loosening driving component to drive the thread loosening action of the thread clamping set (24).
2. The integrated structure of automatic presser foot lifting and thread releasing as claimed in claim 1, wherein said feeding member comprises a push rod (14), said push rod (14) is connected with an output shaft of said motor (13) through a screw thread, said motor (13) rotates forward/backward to drive said push rod (14) to move forward/backward by a fixed distance.
3. The integrated structure of automatic presser foot lifting and thread loosening as claimed in claim 2, wherein said top bar (14) is fixedly sleeved with a tightening ring (15), said presser foot lifting driving assembly comprises a presser foot lifting actuator and a presser foot lifting transmission member, said presser foot (19) is connected to said presser foot lifting actuator, said presser foot lifting transmission member abuts against said presser foot lifting actuator and said tightening ring (15), respectively, and said tightening ring (15) is axially moved along the output shaft of said motor (13) by the driving of said top bar (14).
4. The integrated structure of automatic presser foot lifting and thread releasing as claimed in claim 3, wherein said presser foot driving member comprises a lifting slide plate (16), the middle part of said lifting slide plate (16) is fixed by a fastening member and can rotate along the fastening member, one end of the lower side of said lifting slide plate (16) abuts against said presser foot actuator, a pull rod (11) is connected to the upper part of said lifting slide plate (16), said pull rod (11) provides a pulling force to said lifting slide plate (16) to lift said presser foot actuator and presser foot.
5. The integrated structure of automatic presser foot lifting and thread releasing as claimed in claim 4, wherein the other end of the lower side of said lifting and pressing sliding piece (16) abuts against said elastic ring (15), said lifting and pressing sliding piece (16) is provided with an inclined surface (12), said elastic ring (15) abuts against said inclined surface (12) when moving axially to generate an ejecting force to said lifting and pressing sliding piece (16).
6. The integrated structure of automatic presser foot lifting and thread releasing as claimed in claim 4, wherein the other end of the lower side of said lifting and pressing sliding piece (16) abuts against said elastic ring (15), an inclined surface (12) is provided on said elastic ring (15), and when said elastic ring (15) moves axially, said inclined surface (12) abuts against said lifting and pressing sliding piece (16) to generate an ejecting force to said lifting and pressing sliding piece (16).
7. The integrated structure of automatic presser foot lifting and thread releasing as claimed in claim 4, wherein said presser foot lifting driving member comprises a pressure lifting rod (18), said presser foot (19) is connected to the lower end of said pressure lifting rod (18), said pressure lifting rod (18) is fixedly sleeved with a pressure lifting connecting block (17), one end of the lower side of said pressure lifting sliding sheet (16) abuts against said pressure lifting connecting block (17), said pressure lifting rod (18) is sleeved with a pressure spring (20) for returning said pressure lifting connecting block (17).
8. The integrated structure of automatic presser foot lifting and thread releasing as claimed in claim 2, wherein said thread releasing driving assembly comprises a fixed plate (22) and said thread clamping set (24) comprises two thread clamping pieces, one of which is a fixed thread clamping piece and is fixedly mounted on said fixed plate (22), the other of which is a movable thread clamping piece, and two thread clamping pieces are connected by a spring to be attached to each other for clamping thread.
9. The integrated structure of automatic presser foot lifting and releasing as claimed in claim 8, wherein said thread clamping set (24) is mounted on said fixing plate (22), a deformable thread releasing plate (21) is fixedly mounted on one surface of said fixing plate (22) facing to said top bar (14), a thread releasing rod (23) for pushing said movable thread clamping piece is abutted between said thread releasing plate (21) and said thread clamping set (24), and an axial end of said top bar (14) faces to said thread releasing plate (21).
10. A zigzag sewing machine comprising a head, a bed and a frame, characterized in that it further comprises an automatic presser foot lifting and thread releasing integrated structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121671240.6U CN217678035U (en) | 2021-07-21 | 2021-07-21 | Automatic lift presser foot and integrative structure of pine line and tortuous sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121671240.6U CN217678035U (en) | 2021-07-21 | 2021-07-21 | Automatic lift presser foot and integrative structure of pine line and tortuous sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217678035U true CN217678035U (en) | 2022-10-28 |
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ID=83701155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121671240.6U Active CN217678035U (en) | 2021-07-21 | 2021-07-21 | Automatic lift presser foot and integrative structure of pine line and tortuous sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217678035U (en) |
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2021
- 2021-07-21 CN CN202121671240.6U patent/CN217678035U/en active Active
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