CN111719254A - Structure for controlling multiple sewing actions by one motor and sewing machine - Google Patents
Structure for controlling multiple sewing actions by one motor and sewing machine Download PDFInfo
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- CN111719254A CN111719254A CN202010726199.1A CN202010726199A CN111719254A CN 111719254 A CN111719254 A CN 111719254A CN 202010726199 A CN202010726199 A CN 202010726199A CN 111719254 A CN111719254 A CN 111719254A
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- motor
- backstitch
- presser foot
- crank
- connecting rod
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B29/00—Pressers; Presser feet
- D05B29/02—Presser-control devices
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
- D05B27/22—Work-feeding means with means for setting length of stitch
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The sewing machine comprises a motor, a presser foot lifting mechanism, a backstitch mechanism and a thread cutting mechanism, wherein the motor comprises an electromagnet and/or a relay and an encoder, the motor is provided with a front output shaft and a rear output shaft, the rear output shaft of the motor controls the presser foot lifting mechanism and the backstitch mechanism, and the front output shaft of the motor controls the thread cutting mechanism; and a pressure foot lifting cam of the pressure foot lifting mechanism and a backstitch cam of the backstitch mechanism are fixedly arranged on an output shaft behind the motor, and an electromagnet and a tangent curved bar are arranged on a front output shaft behind the motor. This application realizes the backstitch, lifts the sewing action of presser foot and trimming through a motor moving setting for sewing machine structure is compacter, has reduced sewing machine's manufacturing cost by a wide margin.
Description
Technical Field
This application is by a plurality of sewing action structures and sewing machine of a motor control, concretely relates to sewing machine makes technical field.
Background
The existing sewing machine basically controls sewing actions such as backstitch, presser foot, thread trimming and the like through an electromagnet, and the realization of each function needs an electromagnet or a motor for control. The existing market has the function of controlling presser feet, trimming and backstitch (adjusting the needle pitch) through a stepping motor, wherein one stepping motor respectively controls trimming and presser foot lifting through forward rotation and reverse rotation, and the other motor independently controls backstitch (adjusting the needle pitch). The sewing machine needs to control functions of backstitch, presser foot and thread trimming by installing two stepping motors, so that the manufacturing cost of the sewing machine is increased, and meanwhile, the production assembly is more complicated.
Disclosure of Invention
Aiming at the defects of high cost and complex production in the sewing machine technology, the invention provides a sewing action structure controlled by one motor and a sewing machine, which is characterized by comprising a motor, a presser foot lifting mechanism, a backstitch mechanism and a thread cutting mechanism, wherein the motor comprises an electromagnet and an encoder, the motor is provided with a front output shaft and a rear output shaft, the rear output shaft of the motor controls the presser foot lifting mechanism and the backstitch mechanism, and the front output shaft of the motor controls the thread cutting mechanism; and a rear output shaft of the motor is fixedly provided with a presser foot lifting cam of the presser foot lifting mechanism and a backstitch cam of the backstitch mechanism.
The presser foot lifting mechanism comprises a presser foot lifting cam and a presser foot lifting connecting rod, the presser foot lifting cam is provided with a rear shaft outlet hole, a connecting rod groove, a front low point and a rear low point, the presser foot lifting connecting rod is provided with a circular head, the connecting rod groove is arc-shaped, the circular head of the presser foot lifting connecting rod is matched with the connecting rod groove, the front low point and the rear low point in the presser foot lifting cam, and a motor of the presser foot lifting mechanism rotates forwards and backwards in a corner once to realize the presser foot lifting action.
Backstitch mechanism is including backstitch cam and backstitch connecting rod, the backstitch cam has concentric circles portion one, heart hole, arc surface portion and concentric circles portion two, concentric circles portion one and concentric circles portion two set up in the both sides of arc surface portion, concentric circles portion one and concentric circles portion two use the heart hole to set up as the centre of a circle, the backstitch connecting rod has the crank to support and lean on the portion, the crank support to support and lean on with the backstitch cam, backstitch mechanism's motor is in the corner just reverse rotation realization backstitch action repeatedly.
The wire cutting mechanism is provided with a wire cutting crank and a wire cutting driving crank, the wire cutting driving crank is provided with a crank hole, the wire cutting crank is provided with a crank ball, the crank ball is arranged in the crank hole of the wire cutting driving crank, and the wire cutting action is realized by one-time positive rotation of the motor of the wire cutting mechanism in a corner.
Further, the back play axle of motor passes the encoder, the encoder is installed on the rear end cover of motor, the central point that the back play axle of motor wore to establish at the encoder puts, the motor still include the relay.
Further, the front low point and the rear low point are located at two end points of the arc-shaped connecting rod groove, and the rear shaft outlet hole is used for lifting the presser foot cam and is fixed on the rear shaft outlet.
Furthermore, the central hole is used for the rear output shaft to penetrate and fixedly connected, and the arc surface part is not arranged by taking the central hole as the center of a circle.
Further, the backstitch mechanism further comprises a swing seat and a feeding shaft, the backstitch connecting rod is further provided with a fixing hole, the fixing hole is located at the other end of the crank abutting portion and used for being connected with the swing seat, the swing seat drives the feeding shaft, and the arc-shaped surface portion of the backstitch cam abuts against the crank abutting portion in an abutting mode.
Further, backstitch mechanism is still including the spring, swing seat has swing seat spring fixed lever, is provided with organism spring fixed lever on the organism that this application still has, swing seat spring fixed lever and organism spring fixed lever between be provided with the spring.
Further, the angle of one forward and reverse rotation of the motor of the presser foot lifting mechanism in the corner is larger than the angle of one forward and reverse rotation of the motor of the backstitch action in the corner, the angle of one forward and reverse rotation of the motor of the backstitch mechanism in the corner is within the angle of one forward and reverse rotation of the motor of the presser foot lifting action in the corner, the angle of one forward and reverse rotation of the motor of the thread trimming mechanism in the corner is within the angle of one forward and reverse rotation of the motor in the corner during the presser foot lifting and backstitch, and the one reverse rotation of the motor of the thread trimming mechanism in the corner is used for realizing the thread trimming action.
Further, trimming mechanism is still including connecting rod, trimming arm, movable trimming arm and blade, and the tangent line curved bar still has preceding axle hole and connector, the preceding axle hole that goes out of tangent line curved bar is fixed in the front epaxially, crank ball and preceding axle hole are connected to the connector, the installing port that the crank ball has supplies the crank ball to put into the connector in, connecting rod fixed orifices connects fixed connecting rod, tangent line drive crank still has installing port, mount and connecting rod fixed orifices, tangent line drive crank's crank hole is located the hollow position of tangent line curved bar body, the opening part in crank hole is provided with the installing port, the fixed tangent line curved bar body of mount, be provided with horizontal fixed orifices on the mount.
Furthermore, one end of the connecting rod is connected with the tangent curved rod, the other end of the connecting rod is connected with the thread cutting arm and the movable thread cutting arm, and the thread cutting arm fixes the cutter holder.
The application provides a sewing machine, includes and is controlled a plurality of sewing action structures by a motor.
The utility model provides a by a plurality of sewing actions of a motor control and sewing machine beneficial effect be, realize the backstitch, lift the sewing action of presser foot and trimming through the setting of a motor moving, the preceding axle of play and the back axle of play of having used the motor ingeniously control the trimming respectively and lift presser foot, backstitch action for the sewing machine structure is compacter, and sewing machine's design more tends towards rationally, has reduced sewing machine's manufacturing cost by a wide margin.
Drawings
FIG. 1 is a structural diagram of a sewing machine and a structure for controlling a plurality of sewing actions by a motor according to the present application;
FIG. 2 is a schematic view of a sewing machine with a plurality of sewing operation mechanisms controlled by a motor and a presser foot lifting mechanism and a backstitch mechanism of the sewing machine according to the present application;
FIG. 3 is a schematic view of a sewing mechanism and a sewing machine thread trimming mechanism controlled by a single motor according to the present application;
FIG. 4 is a structural diagram of a sewing machine thread cutting driving crank according to the present application, wherein a plurality of sewing operation structures are controlled by a motor;
FIG. 5 is a structural diagram of a sewing machine with a plurality of sewing operation structures controlled by a motor according to the present application;
FIG. 6 is a structural diagram of a sewing machine backstitch cam and a structure in which a plurality of sewing actions are controlled by a motor according to the present application;
FIG. 7 is a structural diagram of a structure of a plurality of sewing actions controlled by a motor and a backstitch link of a sewing machine according to the present application;
FIG. 8 is a structure diagram of a structure of the present application in which a plurality of sewing operations are controlled by a single motor and a presser foot lifting cam of a sewing machine.
Reference numerals: 1. a motor; 11. an electromagnet; 12. a front shaft is out; 13. a rear shaft is output; 14. an encoder; 2. a presser foot lifting mechanism; 21. lifting a presser foot cam; 211. a rear shaft outlet hole; 212. a connecting rod slot; 213. a front low point; 214. a lower point; 22. lifting a presser foot connecting rod; 23. a needle bar; 3. a backstitch mechanism; 31. a backstitch cam; 311. a central hole; 312. a concentric circle part I; 313. a circular arc surface part; 314. a second concentric circle portion; 32. backstitch connecting rods; 321. a crank abutting portion; 322. a fixing hole; 33. a swing seat; 331. a swing seat spring fixing rod; 34. a feed shaft; 35. a spring; 4. a body; 41. a machine body spring fixing rod; 5. a thread trimming mechanism; 51. a tangent drive crank; 511. a crank bore; 512. an installation port; 513. a fixed mount; 514. a connecting rod fixing hole; 52. a tangent curved bar; 521. a front shaft outlet hole; 522. a linker; 523. a crank ball; 53. a connecting rod; 54. a thread trimming arm; 55. a movable trimming arm; 56. a blade.
Detailed Description
Preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings so that the advantages and features of the application can be more readily understood by those skilled in the art, and thus the scope of the application will be more clearly and clearly defined.
Fig. 1, fig. 2, fig. 3 are structural diagrams of a structure for controlling a plurality of sewing actions by one motor and a sewing machine according to the present application, the structure for controlling a plurality of sewing actions by one motor specifically comprises a motor 1, a presser foot lifting mechanism 2, a backstitch mechanism 3 and a thread trimming mechanism 5, the motor 1 comprises an electromagnet 11 and/or a relay and an encoder 14, and the present application adopts the relay in the scheme of the electromagnet 11 at the same time, so that the effect of the present application is the same as that of the electromagnet 11. As another embodiment, the same technical effect is achieved by replacing the electromagnet 11 with a relay, which is also mounted on the rear end cover that the motor 1 has. The motor 1 is provided with a front output shaft 12 and a rear output shaft 13, the rear output shaft 13 of the motor 1 controls the presser foot lifting mechanism 2 and the backstitch mechanism 3, and the front output shaft 12 of the motor 1 controls the thread trimming mechanism 5.
In the drawings: the presser foot lifting mechanism 2 comprises a presser foot lifting cam 21, a presser foot lifting connecting rod 22 and a needle rod 23; the backstitch mechanism 3 comprises a backstitch cam 31, a backstitch connecting rod 32, a swing seat 33, a feeding shaft 34 and a spring 35.
The rear output shaft 13 of the motor 1 penetrates through the encoder 14, the encoder 14 is installed on a rear end cover of the motor 1, the encoder 14 reads the operation data of the rear output shaft 13 so as to input control data to command the motor 1 to operate, the rear output shaft 13 of the motor 1 penetrates through the encoder 14, and the rear output shaft 13 penetrates through the center position of the encoder 14.
The rear output shaft 13 of the motor 1 controls the presser foot lifting mechanism 2 and the backstitch mechanism 3, and specifically: the rear output shaft 13 is provided with a pressure foot lifting cam 21 fixedly arranged on the pressure foot lifting mechanism 2 and a backstitch cam 31 arranged on the backstitch mechanism 3, the pressure foot lifting cam 21 and the backstitch cam 31 are fixed on the rear output shaft 13, and the pressure foot lifting cam 21 and the backstitch cam 31 are driven by the operation of the motor 1 to perform corresponding sewing actions to complete the pressure foot lifting and backstitch actions in sequence, namely the pressure foot lifting sewing action of the pressure foot lifting cam 21 is realized by one-time positive and negative rotation of the motor 1 of the pressure foot lifting mechanism 2 in a corner; the reverse sewing operation of the reverse sewing cam 31 is realized by repeating the forward and reverse rotation of the motor 1 of the reverse sewing mechanism 3 in the rotation angle.
When the presser foot lifting action is needed, the motor 1 is started in the corner to rotate forward and backward once, and the rear output shaft 13 drives the presser foot lifting cam 21 to rotate forward and backward, so that the presser foot lifting connecting rod 22 can also move up and down. The presser foot lifting cam 21 is provided with a rear shaft outlet hole 211, a connecting rod groove 212, a front low point 213 and a rear low point 214, the connecting rod groove 212 is arc-shaped, the front low point 213 and the rear low point 214 are positioned at two end points of the arc-shaped connecting rod groove 212, and the rear shaft outlet hole 211 is used for fixing the presser foot lifting cam 21 on the rear shaft outlet 13; the lift presser foot link 22 has a circular head that matches the link slot 212, front low point 213 and rear low point 214 (shown in fig. 8) in the lift presser foot cam 21. When the motor 1 rotates clockwise and counterclockwise once in the corner, the circular head of the presser foot lifting connecting rod 22 is driven to move between the front low point 213 and the rear low point 214 in the presser foot lifting cam 21, so that the presser foot lifting connecting rod 22 moves up and down under the position change between the front low point 213 and the rear low point 214, the needle rod 23 is driven to move up and down, and the presser foot lifting action is realized by the clockwise and counterclockwise rotation once in the corner of the motor 1.
When backstitch (namely, needle pitch adjustment) is required to be realized, the motor 1 repeatedly rotates forwards and backwards in a corner to output power, the backstitch cam 31 is driven by the rear output shaft 13 to swing forwards and backwards, so that the backstitch connecting rod 32 also swings correspondingly, and the subsequent swing seat 33 drives the feeding shaft 34 to realize backstitch.
The backstitch cam 31 has a central hole 311, a first concentric circle part 312, a circular arc surface part 313 and a second concentric circle part 314 (shown in fig. 6), the central hole 311 of the backstitch cam 31 is used for the rear output shaft 13 to penetrate and fixedly connect, so that the rear output shaft 13 drives the backstitch cam 31, the first concentric circle part 312 and the second concentric circle part 314 are arranged at two sides of the circular arc surface part 313, the first concentric circle part 312 and the second concentric circle part 314 are arranged by taking the central hole 311 as a center of a circle, and the circular arc surface part 313 is not arranged by taking the central hole 311 as a center of a circle.
The backstitch connecting rod 32 is provided with a crank abutting part 321 and a fixing hole 322 (shown in fig. 7), the crank abutting part 321 abuts against the backstitch cam 31, and the fixing hole 322 is positioned at the other end of the crank abutting part 321 and is used for connecting the swinging seat 33. The crank abutting portion 321 abuts against the backstitch cam 31 with different sewing actions, and the three positions are: a first concentric portion 312, a curved surface portion 313, and a second concentric portion 314. When the backstitch action is to be realized, the crank abutting part 321 abuts against the first concentric circle part 312 and/or the second concentric circle part 314.
The motor 1 repeatedly rotates forward and backward in the rotation angle to output power to drive the backstitch cam 31, the arc surface part 313 of the backstitch cam 31 abuts against the crank abutting part 321, the position of the crank abutting part 321 is changed in the operation of the arc surface part 313, the position of the crank abutting part 321 is continuously and repeatedly changed on the arc surface part 313, and the position is transmitted to the swinging seat 33 through the backstitch connecting rod 32.
The swing seat 33 has a swing seat spring fixing rod 331, and the body 4 of the present application is provided with a body spring fixing rod 41; a spring 35 is arranged between the swing seat spring fixing rod 331 and the machine body spring fixing rod 41, and the spring 35 is used for balancing the swing seat 33, so that the swing seat 33 has a force of maintaining resilience when the backstitch connecting rod 32 swings, the swing of the feeding shaft 34 is realized, and the backstitch action is realized.
The angle of one forward and reverse rotation of the motor 1 for the presser foot lifting action in the corner is larger than the angle of one forward and reverse rotation of the motor 1 for the backstitch action in the corner, and the angle of the one forward and reverse rotation of the motor 1 for the backstitch action in the corner is within the angle of one forward and reverse rotation of the motor 1 for the presser foot lifting action in the corner. Specifically, when the presser foot is lifted, the crank abutting part 321 of the backstitch connecting rod 32 fixedly linked with the rear output shaft 13 abuts against the first concentric circle part 312 or the second concentric circle part 314 of the backstitch cam 31, and when the presser foot lifting cam 21 drives the backstitch cam 31 to idle at the first concentric circle part 312 or the second concentric circle part 314; when backstitch is operated, because the repeated positive and negative rotation angle of the motor 1 in the corner during backstitch is within the angle range of one positive and negative rotation of the presser foot lifting action motor 1 in the corner, the operation of the backstitch cam 31 drives the presser foot lifting cam 21 to operate correspondingly, the positive and negative rotation amplitude of the presser foot lifting cam 21 is smaller and does not produce acting force on the presser foot lifting connecting rod 22, so that the action of the presser foot lifting is not influenced during the backstitch operation, and the presser foot lifting connecting rod 22 only idles in the connecting rod groove 212 of the presser foot lifting cam 21.
When the thread cutting action is required to be executed, the front output shaft 12 of the motor 1 is connected with and controls the thread cutting mechanism 5, the motor 1 of the thread cutting mechanism 5 realizes the thread cutting action through one-time positive rotation or one-time negative rotation at a rotating angle, the thread cutting curved rod 52 is installed on the front output shaft 12, the electromagnet 11 is further installed on the front output shaft 12 of the motor 1, the front output shaft 12 penetrates out of the electromagnet 11, and the electromagnet 11 is used for clutching the thread cutting curved rod 52.
The thread cutting mechanism 5 comprises a thread cutting driving crank 51, a thread cutting crank 52, a connecting rod 53, a thread cutting arm 54, a movable thread cutting arm 55 and a blade 56. The tangent curved bar 52 has a front axle-exiting hole 521, a connecting body 522 and a crank ball 523 (shown in fig. 5), the front axle-exiting hole 521 of the tangent curved bar 52 is fixed on the front axle 12, and the connecting body 522 connects the crank ball 523 and the front axle-exiting hole 521. The tangential driving crank 51 has a crank hole 511, a mounting hole 512, a fixing frame 513 and a connecting rod fixing hole 514 (shown in fig. 4), the crank ball 523 is mounted in the crank hole 511 of the tangential driving crank 51, the tangential driving crank 51 has a mounting hole 512 for placing the crank ball 523 in the crank hole 511, and the connecting rod fixing hole 514 is connected with the fixed connecting rod 53. The tangent curved bar 52 is fixed on the electromagnet 11, and the tangent curved bar 52 moves in and out controlled by the electromagnet 11. A crank hole 511 of the tangent driving crank 51 is located in the hollow position of the tangent crank 52 body, an installation opening 512 is formed in the opening of the crank hole 511, the tangent crank 52 body is fixed by a fixing frame 513, and a transverse fixing hole 514 is formed in the fixing frame 513.
One end of the connecting rod 53 is connected with the tangent curved rod 52, the other end is connected with the thread cutting arm 54 and the movable thread cutting arm 55, and the connecting rod 53 drives the movable thread cutting arm 55 connected with the blade 56 under the pushing of the tangent curved rod 52; the other fixed thread trimming arm 54 of the connecting rod 53 fixes the cutter seat, the connecting rod 53 drives the movable thread trimming arm 55 to push the blade 56 to trim threads, and the thread trimming driving crank 51, the thread trimming curved rod 52, the connecting rod 53 and the movable thread trimming arm 55 are sequentially driven, and finally the blade 56 is driven.
When the thread cutting action is required, the electromagnet 11 is started, namely, the thread cutting curved rod 52 extends out, the crank ball 523 enables the thread cutting curved rod to enter the connecting body 522 of the thread cutting driving crank 51, then, the motor 1 starts to rotate forwards or reversely for a certain angle, the crank ball 523 twists the thread cutting driving crank 51, the thread cutting driving crank 51 twists the connecting rod 53, the connecting rod 53 pushes the movable thread cutting arm 55, and the movable thread cutting arm 55 finally pushes the blade 56, so that the thread cutting action is completed. In the above-mentioned thread trimming operation, the angle of one forward rotation or one reverse rotation of the motor 1 in the corner of the thread trimming operation is within the angle of repeated forward and reverse rotation of the motor 1 in the corner during the action of lifting and backstitching the presser foot, and the thread trimming operation does not drive the backstitch action and the action of lifting the presser foot, as the backstitch action and the action of lifting the presser foot are not influenced mutually. After the thread trimming action is finished, the electromagnet 11 retracts the thread trimming curved rod 52, the thread trimming curved rod 52 is separated from the thread trimming driving crank 51, and the thread trimming action is naturally not influenced when the presser foot is lifted and the backstitch action is performed.
The above description is only a preferred embodiment of the present application, and does not limit the scope of the present application, and it should be reminded that the backstitch mechanism 3, the presser foot lifting mechanism 2, and the thread trimming mechanism 5 related to the backstitch action, the presser foot lifting action, and the thread trimming action of the motor 1 described above are included in the scope of the present application by using the equivalent structure or equivalent flow conversion, or by directly or indirectly applying to other related technical fields, which are provided by the content of the present specification and the drawings, regardless of the position change setting of the front output shaft 12 and the rear output shaft 13 of the motor 1.
Claims (10)
1. A structure for controlling a plurality of sewing actions by one motor is characterized by comprising a motor, a presser foot lifting mechanism, a backstitch mechanism and a thread cutting mechanism, wherein the motor comprises an electromagnet and an encoder, the motor is provided with a front output shaft and a rear output shaft, the rear output shaft of the motor controls the presser foot lifting mechanism and the backstitch mechanism, and the front output shaft of the motor controls the thread cutting mechanism; a rear output shaft of the motor is provided with a fixed presser foot lifting cam of the presser foot lifting mechanism and a backstitch cam of the backstitch mechanism,
the presser foot lifting mechanism comprises a presser foot lifting cam and a presser foot lifting connecting rod, the presser foot lifting cam is provided with a rear shaft outlet hole, a connecting rod groove, a front low point and a rear low point, the presser foot lifting connecting rod is provided with a circular head, the connecting rod groove is arc-shaped, the circular head of the presser foot lifting connecting rod is matched with the connecting rod groove, the front low point and the rear low point in the presser foot lifting cam, and a motor of the presser foot lifting mechanism rotates forwards and backwards in a corner once to realize the presser foot lifting action;
the backstitch mechanism comprises a backstitch cam and a backstitch connecting rod, the backstitch cam is provided with a first concentric circle part, a central hole, an arc surface part and a second concentric circle part, the first concentric circle part and the second concentric circle part are arranged on two sides of the arc surface part, the first concentric circle part and the second concentric circle part are arranged by taking the central hole as the circle center, the backstitch connecting rod is provided with a crank abutting part, the crank abutting part abuts against the backstitch cam, and a motor of the backstitch mechanism repeatedly rotates forwards and backwards in a corner to realize backstitch action;
the wire cutting mechanism is provided with a wire cutting crank and a wire cutting driving crank, the wire cutting driving crank is provided with a crank hole, the wire cutting crank is provided with a crank ball, the crank ball is arranged in the crank hole of the wire cutting driving crank, and the wire cutting action is realized by one-time positive rotation of the motor of the wire cutting mechanism in a corner.
2. The structure of claim 1, wherein the rear shaft of the motor passes through the encoder, the encoder is mounted on the rear end cap of the motor, the rear shaft of the motor passes through the center of the encoder, and the motor further comprises a relay.
3. The structure of claim 1, wherein the front low point and the rear low point are located at two end points of the circular arc-shaped link slot, and the rear shaft-out hole is used for lifting and fixing the presser foot cam on the rear shaft-out.
4. The structure of claim 1, wherein the central hole is used for the rear shaft to pass through and fixedly connect with, and the arc surface portion is not disposed around the central hole.
5. The structure of claim 1, wherein the backstitch mechanism further comprises a swing seat and a feeding shaft, the backstitch connecting rod further comprises a fixing hole, the fixing hole is located at the other end of the crank abutting portion and used for being connected with the swing seat, the swing seat drives the feeding shaft, and the arc surface portion of the backstitch cam abuts against the crank abutting portion.
6. The structure of claim 4, wherein the backstitch mechanism further comprises a spring, the swing seat has a swing seat spring fixing rod, the machine body further comprises a machine body spring fixing rod, and the spring is arranged between the swing seat spring fixing rod and the machine body spring fixing rod.
7. The structure as claimed in claim 1, wherein the angle of the motor for the presser foot lifting mechanism that rotates forward and backward once in the corner is larger than the angle of the motor for the backstitch mechanism that rotates forward and backward once in the corner, the angle of the motor for the backstitch mechanism that rotates forward and backward once in the corner is within the angle of the motor for the presser foot lifting mechanism that rotates forward and backward once in the corner, the angle of the motor for the thread trimming mechanism that rotates forward and backward once in the corner is within the angle of the motor for the forward and backward rotation once in the corner when the presser foot and the backstitch are lifted, and the motor for the thread trimming mechanism that rotates backward once in the corner to perform the thread trimming operation.
8. The structure for controlling multiple sewing actions by one motor according to claim 1 is characterized in that the thread cutting mechanism further comprises a connecting rod, a thread cutting arm, a movable thread cutting arm and a blade, the thread cutting curved rod further comprises a front shaft-out hole and a connecting body, the front shaft-out hole of the thread cutting curved rod is fixed on the front shaft-out hole, the connecting body is connected with a crank ball and the front shaft-out hole, a mounting hole of the crank ball is used for the crank ball to be placed into the connecting body, the connecting rod fixing hole is connected with the fixed connecting rod, the thread cutting driving crank further comprises a mounting hole, a fixing frame and a connecting rod fixing hole, the crank hole of the thread cutting driving crank is located at the hollow position of the thread cutting curved rod body, the mounting hole is arranged at the opening of the crank hole, the fixing frame is used for fixing the thread cutting curved rod body, and the fixing hole is arranged on the fixing frame.
9. The structure of claim 8, wherein one end of the connecting rod is connected to the thread cutting curved rod, and the other end of the connecting rod is connected to the thread cutting arm and the thread moving arm, and the thread cutting arm fixes the tool holder.
10. A sewing action is characterized by comprising any one of 1 to 9 of structures which are controlled by a motor and are provided with a plurality of sewing actions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726199.1A CN111719254A (en) | 2020-07-25 | 2020-07-25 | Structure for controlling multiple sewing actions by one motor and sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726199.1A CN111719254A (en) | 2020-07-25 | 2020-07-25 | Structure for controlling multiple sewing actions by one motor and sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111719254A true CN111719254A (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010726199.1A Pending CN111719254A (en) | 2020-07-25 | 2020-07-25 | Structure for controlling multiple sewing actions by one motor and sewing machine |
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| CN (1) | CN111719254A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979653A (en) * | 2020-09-30 | 2020-11-24 | 琦星智能科技股份有限公司 | Driving device for lifting presser foot and adjusting needle distance in sewing machine |
| CN112376177A (en) * | 2020-11-17 | 2021-02-19 | 琦星智能科技股份有限公司 | Sewing machine |
| CN114575051A (en) * | 2020-11-30 | 2022-06-03 | 琦星智能科技股份有限公司 | Independent operation bottom line mechanism of separated sewing machine |
| CN115233385A (en) * | 2021-04-23 | 2022-10-25 | 杰克科技股份有限公司 | Sewing machine, thread trimming device thereof and thread trimming control method |
-
2020
- 2020-07-25 CN CN202010726199.1A patent/CN111719254A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979653A (en) * | 2020-09-30 | 2020-11-24 | 琦星智能科技股份有限公司 | Driving device for lifting presser foot and adjusting needle distance in sewing machine |
| CN112376177A (en) * | 2020-11-17 | 2021-02-19 | 琦星智能科技股份有限公司 | Sewing machine |
| CN114575051A (en) * | 2020-11-30 | 2022-06-03 | 琦星智能科技股份有限公司 | Independent operation bottom line mechanism of separated sewing machine |
| CN115233385A (en) * | 2021-04-23 | 2022-10-25 | 杰克科技股份有限公司 | Sewing machine, thread trimming device thereof and thread trimming control method |
| WO2022222487A1 (en) * | 2021-04-23 | 2022-10-27 | 杰克科技股份有限公司 | Sewing machine, thread cutting apparatus thereof, and thread cutting control method |
| CN115233385B (en) * | 2021-04-23 | 2023-06-20 | 杰克科技股份有限公司 | Sewing machine, thread cutting device thereof and thread cutting control method |
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