CN219385550U - Lower differential feeding mechanism of sewing machine - Google Patents
Lower differential feeding mechanism of sewing machine Download PDFInfo
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- CN219385550U CN219385550U CN202320422935.3U CN202320422935U CN219385550U CN 219385550 U CN219385550 U CN 219385550U CN 202320422935 U CN202320422935 U CN 202320422935U CN 219385550 U CN219385550 U CN 219385550U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Sewing Machines And Sewing (AREA)
Abstract
The utility model provides a lower differential feeding mechanism of a sewing machine, which comprises a feeding shaft, a differential tooth frame seat and an adjusting component, wherein the feeding shaft is movably positioned on a frame, the differential tooth frame seat is movably connected with the feeding shaft, a rectangular groove is formed in the side surface of the differential tooth frame seat, the adjusting component comprises an adjusting motor and an adjusting sliding block, the adjusting sliding block is positioned in the rectangular groove and can rotate along with the differential tooth frame seat, the adjusting motor drives the adjusting sliding block to slide along the rectangular groove, and the feeding shaft drives the differential tooth frame seat to swing around the rotating axle center of the adjusting sliding block. Compared with the prior art, the lower differential feeding mechanism of the sewing machine uses the adjusting motor, can realize lower differential automatic adjustment by only controlling the rotation of the adjusting motor, can realize synchronous feeding and differential feeding according to the needs, has very convenient adjustment operation, stable and reliable adjustment process, simple structure, low manufacturing cost, convenient maintenance and easy popularization and use and good functional applicability.
Description
Technical Field
The utility model belongs to the technical field of sewing machines, and relates to a lower differential feeding mechanism of a sewing machine.
Background
The differential feeding mechanism of the sewing machine is characterized in that the front feeding tooth and the rear feeding tooth are respectively and independently used for feeding, and the mechanism can generally independently adjust the feeding speed and the feeding distance of the front feeding tooth and the rear feeding tooth, so that the sewing material is wrinkled or stretched. Such as Chinese patent number: the adjustable lower differential feeding mechanism of the industrial sewing machine and the differential adjusting method thereof are described in 201510116166.4, the lower differential feeding mechanism is characterized in that the knob is rotated to drive the adjusting screw rod to rotate relative to the screw rod sleeve, the adjusting screw rod is fixed by the screw rod sleeve, the adjusting screw rod drives the adjusting connecting rod to act, the adjusting connecting rod drives the first converting connecting rod to swing along the hinged end of the adjusting connecting rod, and when the first converting connecting rod swings, the relative position of the adjusting slide block and the adjusting crank is changed; when the main shaft drives the feeding crank to swing, the feeding crank drives the conversion crank to swing through the second conversion connecting rod, the conversion crank drives the adjusting crank and the main feeding crank to swing through the first conversion connecting rod and the third conversion connecting rod respectively, and then the lower differential feeding shaft and the main feeding shaft are driven to swing relatively, and according to the difference of the positions of the adjusting slide block and the first conversion connecting rod, the relative swing quantity adjustment of the lower differential feeding shaft and the main feeding shaft is realized, namely the differential adjustment is realized. The existing lower differential feeding mechanism realizes differential adjustment by manually rotating a knob, and has the defects of troublesome adjustment operation, complex structure, multiple parts, high cost, troublesome installation, difficult maintenance and the like.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a lower differential feeding mechanism of a sewing machine for realizing lower differential automatic adjustment.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a lower differential feeding mechanism of sewing machine, includes the pay-off axle, the pay-off axle activity is located in the frame, still includes differential tooth frame seat and adjusting part, differential tooth frame seat with pay-off axle swing joint, differential tooth frame seat's side system has rectangular channel, adjusting part includes accommodate motor and adjusting slide block, adjusting slide block is located rectangular channel and can follow differential tooth frame seat rotates, accommodate motor drives the adjusting slide block is followed rectangular channel slides, the pay-off axle drives differential tooth frame seat is around adjusting slide block's rotation axle center swings.
In the lower differential feeding mechanism of the sewing machine, the adjusting assembly further comprises a moving block and a connecting shaft, the adjusting motor is installed on the frame, the adjusting motor drives the moving block to move up and down through a ball screw, the adjusting slider is connected with the moving block through the connecting shaft, the adjusting slider is installed at the end part of the connecting shaft and can rotate relative to the connecting shaft, the rotation axis of the adjusting slider is parallel to the axis of the feeding shaft, and the moving block drives the adjusting slider to slide along the rectangular groove.
In the lower differential feeding mechanism of the sewing machine, the ball screw comprises a screw rod and a nut sleeved on the screw rod, the adjusting motor drives the screw rod to rotate, the rotating motion of the screw rod is converted into up-and-down motion of the nut, the moving block is connected with the nut, the adjusting motor is further provided with a supporting frame, the supporting frame is provided with a guide post, a guide hole is formed in the moving block, and the top of the guide post penetrates through the guide hole and is connected with a limiting block, and the moving block can move up and down relative to the guide post.
In the lower differential feeding mechanism of the sewing machine, the lower differential feeding mechanism further comprises a main dental frame seat, a main dental frame, main feeding teeth, a pin shaft, a connecting pin, a differential dental frame and differential feeding teeth, wherein the feeding shaft is in transmission connection with a power mechanism, the power mechanism drives the feeding shaft to rotate, the main dental frame seat is fixed at the end part of the feeding shaft and can swing along with the rotation of the feeding shaft, one swinging end of the main dental frame seat is movably hinged with the main dental frame through the pin shaft, and the main dental frame is fixedly connected with the main feeding teeth.
In the lower differential feeding mechanism of the sewing machine, the other swinging end of the main dental frame seat is movably hinged with one swinging end of the differential dental frame seat through the connecting pin, the other swinging end of the differential dental frame seat is hinged with the differential dental frame through the pin shaft, the differential dental frame is fixedly connected with the differential feeding teeth, and the main feeding teeth and the differential feeding teeth are positioned on the same feeding plane.
In the lower differential feeding mechanism of the sewing machine, the adjusting motor drives the adjusting slide block to slide along the rectangular groove, and when the rotation axis of the adjusting slide block and the axis of the feeding shaft are positioned at the same horizontal height, the feeding shaft drives the main dental frame seat and the differential dental frame seat to form synchronous swing, and the main feeding tooth and the differential feeding tooth form synchronous feeding.
In the above-mentioned lower differential feeding mechanism of a sewing machine, when the rotation axis level of the adjusting slider is higher than the axis level of the feeding shaft, the feeding shaft drives the main dental frame seat to swing, and the main dental frame seat drives the differential dental frame seat to swing along the rotation axis where the adjusting slider is located, at this time, the differential swing formed by the main dental frame seat and the differential dental frame seat enables the main feeding teeth and the differential feeding teeth to form differential feeding required by stretching sewing.
In the above-mentioned lower differential feeding mechanism of a sewing machine, when the rotation axis level of the adjusting slider is lower than the axis level of the feeding shaft, the feeding shaft drives the main dental frame seat to swing, and the main dental frame seat drives the differential dental frame seat to swing along the rotation axis where the adjusting slider is located, at this time, the differential swing formed by the main dental frame seat and the differential dental frame seat enables the main feeding teeth and the differential feeding teeth to form differential feeding required by shrinkage sewing.
Compared with the prior art, the lower differential feeding mechanism of the sewing machine uses the adjusting motor, can realize lower differential automatic adjustment by only controlling the rotation of the adjusting motor, can realize synchronous feeding and differential feeding according to the needs, has very convenient adjustment operation, stable and reliable adjustment process, simple structure, low manufacturing cost, convenient maintenance and easy popularization and use and good functional applicability.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a schematic perspective view of a part of the structure of the present utility model.
Fig. 3 is a schematic perspective view of an adjusting assembly according to the present utility model.
In the figure, 1, a feeding shaft; 2. an adjustment assembly; 21. adjusting a motor; 22. a moving block; 23. an adjusting slide block; 24. a screw; 25. a support frame; 26. a guide post; 27. a connecting shaft; 28. a limiting block; 3. a main dental frame seat; 31. a main dental frame; 32. a main feeding tooth; 4. differential dental frame seats; 41. differential dental articulators; 42. differential feeding teeth; 43. rectangular grooves; 5. a connecting pin; 6. a frame; 7. and a pin shaft.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1-3, the lower differential feeding mechanism of the sewing machine comprises a feeding shaft 1 and an adjusting assembly 2. The feeding shaft 1 is movably positioned on the frame 6 and is connected with a power mechanism in a transmission way, and the power mechanism drives the feeding shaft 1 to rotate. The device also comprises a main dental frame seat 3, a main dental frame 31, a main feeding dental tooth 32, a pin shaft 7, a connecting pin 5, a differential dental frame seat 4, a differential dental frame 41 and a differential feeding dental tooth 42. The main dental frame seat 3 is fixed at the end part of the feeding shaft 1, and the main dental frame seat 3 can swing along with the rotation of the feeding shaft 1. One swinging end of the main dental frame seat 3 is movably hinged with a main dental frame 31 through a pin shaft 7, and a main feeding tooth 32 is fixedly connected to the main dental frame 31. The other swinging end of the main dental frame seat 3 is movably hinged with one swinging end of the differential dental frame seat 4 through a connecting pin 5, the other swinging end of the differential dental frame seat 4 is hinged with a differential dental frame 41 through a pin shaft 7, a differential feeding tooth 42 is fixedly connected to the differential dental frame 41, and the main feeding tooth 32 and the differential feeding tooth 42 are positioned on the same feeding plane.
The technical scheme is as follows: the adjusting assembly 2 includes an adjusting motor 21, a moving block 22, an adjusting slider 23, and a connecting shaft 27. The adjusting motor 21 is installed on the frame 6, and the adjusting motor 21 drives the moving block 22 to move up and down through the ball screw. The adjusting slide 23 is connected to the moving block 22 via a connecting shaft 27. The adjusting slide block 23 is mounted at the end of the connecting shaft 27 and can rotate relative to the connecting shaft 27, and the rotating axis of the adjusting slide block 23 is parallel to the axis of the feeding shaft 1. The differential dental bracket seat 4 is provided with a rectangular groove 43 on the side surface, and the adjusting slide 23 is positioned in the rectangular groove 43. The moving block 22 drives the adjusting slide block 23 to slide along the rectangular groove 43, and the sliding direction of the adjusting slide block 23 is perpendicular to the hinge axes of the two swinging ends of the differential dental bracket seat 4.
The technical scheme is as follows: the ball screw comprises a screw 24 and a nut sleeved on the screw 24, the screw 24 is driven to rotate by the adjusting motor 21, the rotating motion of the screw 24 is converted into the up-and-down motion of the nut, and the moving block 22 is connected with the nut. The adjusting motor 21 is also provided with a supporting frame 25, the supporting frame 25 is provided with a guide post 26, a guide hole is formed in the moving block 22, and the top of the guide post 26 passes through the guide hole and is connected with a limiting block 28. The moving block 22 can move up and down with respect to the guide post 26, and the guide post 26 plays a role in guiding the movement of the moving block 22. The limiting block 28 and the supporting frame 25 play a role in limiting the movement of the moving block 22. The end of the pin shaft 7 is fixed on the limiting block 28.
The adjusting motor 21 drives the adjusting slide block 23 to slide along the rectangular groove 43, and when the rotation axis of the adjusting slide block 23 and the axis of the feeding shaft 1 are positioned at the same horizontal height, the feeding shaft 1 drives the main dental articulator 3 and the differential dental articulator 4 to form synchronous swing, and the main feeding teeth 32 and the differential feeding teeth 42 form synchronous feeding.
When the rotation axis horizontal height of the adjusting slide block 23 is higher than that of the feeding shaft 1, the feeding shaft 1 drives the main dental frame seat 3 to swing, the main dental frame seat 3 drives the differential dental frame seat 4 to swing around the rotation axis where the adjusting slide block 23 is located, and at the moment, the differential swing formed by the main dental frame seat 3 and the differential dental frame seat 4 enables the main feeding teeth 32 and the differential feeding teeth 42 to form differential feeding required by stretching sewing.
When the rotation axis horizontal height of the adjusting slide block 23 is lower than that of the feeding shaft 1, the feeding shaft 1 drives the main dental frame seat 3 to swing, the main dental frame seat 3 drives the differential dental frame seat 4 to swing around the rotation axis where the adjusting slide block 23 is located, and at the moment, the differential swing formed by the main dental frame seat 3 and the differential dental frame seat 4 enables the main feeding teeth 32 and the differential feeding teeth 42 to form differential feeding required by shrinkage sewing.
The lower differential feeding mechanism of the sewing machine uses the adjusting motor 21, and can realize lower differential automatic adjustment by only controlling the rotation of the adjusting motor 21, and synchronous feeding and differential feeding can be realized according to the needs.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Although the feed shaft 1 is used more herein; an adjustment assembly 2; a regulating motor 21; a moving block 22; an adjusting slider 23; a screw 24; a support frame 25; a guide post 26; a connecting shaft 27; a stopper 28; a main dental frame base 3; a main dental articulator 31; a main feed dog 32; a differential dental frame seat 4; a differential dental articulator 41; differential feed dog 42; rectangular grooves 43; a connecting pin 5; a frame 6; pin 7, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (5)
1. The utility model provides a lower differential feeding mechanism of sewing machine, includes feeding axle (1), feeding axle (1) activity location is on frame (6), and its characterized in that still includes differential dental frame seat (4) and adjusting part (2), differential dental frame seat (4) with feeding axle (1) swing joint, rectangular channel (43) have been made to the side of differential dental frame seat (4), adjusting part (2) include accommodate motor (21) and adjust slider (23), adjust slider (23) are located in rectangular channel (43) and can rotate along with differential dental frame seat (4), accommodate motor (21) drive adjust slider (23) are followed rectangular channel (43) are slided, feed axle (1) drive differential dental frame seat (4) are around adjust the rotation axle center of slider (23) and swing.
2. The lower differential feeding mechanism of a sewing machine according to claim 1, characterized in that the adjusting assembly (2) further comprises a moving block (22) and a connecting shaft (27), the adjusting motor (21) is installed on the frame (6), the adjusting motor (21) drives the moving block (22) to move up and down through a ball screw, the adjusting slider (23) is connected with the moving block (22) through the connecting shaft (27), the adjusting slider (23) is installed at the end part of the connecting shaft (27) and can rotate relative to the connecting shaft (27), the rotation axis of the adjusting slider (23) is parallel to the axis of the feeding shaft (1), and the moving block (22) drives the adjusting slider (23) to slide along the rectangular groove (43).
3. The lower differential feeding mechanism of a sewing machine according to claim 2, characterized in that the ball screw comprises a screw rod (24) and a nut sleeved on the screw rod (24), the adjusting motor (21) drives the screw rod (24) to rotate, the rotation motion of the screw rod (24) is converted into the up-and-down motion of the nut, the moving block (22) is connected with the nut, the adjusting motor (21) is further provided with a supporting frame (25), the supporting frame (25) is provided with a guide post (26), the moving block (22) is internally provided with a guide hole, the top of the guide post (26) penetrates through the guide hole and is connected with a limiting block (28), and the moving block (22) can move up and down relative to the guide post (26).
4. The lower differential feeding mechanism of a sewing machine according to claim 1, further comprising a main dental frame seat (3), a main dental frame (31), a main dental frame (32), a pin shaft (7), a connecting pin (5), a differential dental frame (41) and a differential feeding dental frame (42), wherein the feeding shaft (1) is in transmission connection with a power mechanism, the power mechanism drives the feeding shaft (1) to rotate, the main dental frame seat (3) is fixed at the end part of the feeding shaft (1), the main dental frame seat (3) can swing along with the rotation of the feeding shaft (1), one swinging end of the main dental frame seat (3) is movably hinged with the main dental frame (31) through the pin shaft (7), and the main dental frame (31) is fixedly connected with the main dental frame (32);
the other swinging end of the main dental frame seat (3) is movably hinged with one swinging end of the differential dental frame seat (4) through the connecting pin (5), the other swinging end of the differential dental frame seat (4) is hinged with the differential dental frame (41) through the pin shaft (7), the differential dental frame (41) is fixedly connected with the differential feeding teeth (42), and the main feeding teeth (32) and the differential feeding teeth (42) are positioned on the same feeding plane.
5. The lower differential feeding mechanism of a sewing machine according to claim 4, wherein the adjusting motor (21) drives the adjusting slider (23) to slide along the rectangular groove (43), when the rotation axis of the adjusting slider (23) and the axis of the feeding shaft (1) are positioned at the same horizontal level, the feeding shaft (1) drives the main dental frame seat (3) and the differential dental frame seat (4) to form synchronous swing, and the main feeding teeth (32) and the differential feeding teeth (42) form synchronous feeding;
when the rotation axis horizontal height of the adjusting slide block (23) is higher than that of the feeding shaft (1), the feeding shaft (1) drives the main dental frame seat (3) to swing, and the main dental frame seat (3) drives the differential dental frame seat (4) to swing along the rotation axis of the adjusting slide block (23), at the moment, the differential swing formed by the main dental frame seat (3) and the differential dental frame seat (4) enables the main feeding teeth (32) and the differential feeding teeth (42) to form differential feeding required by stretching sewing;
when the horizontal height of the rotation axis of the adjusting slide block (23) is lower than that of the feeding shaft (1), the feeding shaft (1) drives the main dental frame seat (3) to swing, the main dental frame seat (3) drives the differential dental frame seat (4) to swing along the rotation axis of the adjusting slide block (23), and at the moment, the differential swing formed by the main dental frame seat (3) and the differential dental frame seat (4) enables the main feeding teeth (32) and the differential feeding teeth (42) to form differential feeding required by shrinkage sewing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320422935.3U CN219385550U (en) | 2023-03-02 | 2023-03-02 | Lower differential feeding mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320422935.3U CN219385550U (en) | 2023-03-02 | 2023-03-02 | Lower differential feeding mechanism of sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219385550U true CN219385550U (en) | 2023-07-21 |
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ID=87192016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320422935.3U Active CN219385550U (en) | 2023-03-02 | 2023-03-02 | Lower differential feeding mechanism of sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219385550U (en) |
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2023
- 2023-03-02 CN CN202320422935.3U patent/CN219385550U/en active Active
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