CN109736023B - Driving device of sewing machine and control method thereof - Google Patents
Driving device of sewing machine and control method thereof Download PDFInfo
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- CN109736023B CN109736023B CN201811596692.5A CN201811596692A CN109736023B CN 109736023 B CN109736023 B CN 109736023B CN 201811596692 A CN201811596692 A CN 201811596692A CN 109736023 B CN109736023 B CN 109736023B
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- 238000009958 sewing Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims description 18
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 235000005770 birds nest Nutrition 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- 235000005765 wild carrot Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 244000000626 Daucus carota Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
A driving device of a sewing machine comprises a chip, a multi-stage electric control driving assembly and a pedal plate, wherein the multi-stage electric control driving assembly comprises a main driver and a slave driver which are coaxially connected, the main driver, the slave driver and the pedal plate are electrically connected with the chip, the different placement states of the pedal plate control the working signal sending states of the chip, and the chip controls the multi-stage electric control driving assembly to operate different levels of driving modes and adjust the needle pitch. The invention has the advantages that the chip is controlled through the placement state of the pedal plate, so that the main driver and the auxiliary driver are respectively driven to form different driving distances, and therefore, a seam sealing state and a seam thinning state are generated in a linkage manner, the operation is simple and convenient, and the needle pitch does not need to be manually adjusted.
Description
Technical Field
The invention relates to the technical field of sewing machines, in particular to a driving device of a sewing machine and a control method thereof.
Background
The sewing method of the existing sewing machine comprises the following steps: during the needle raising, the needle raising is usually fixed by reciprocating back and forth according to the needle pitch of normal sewing, then normal sewing is carried out, and finally the thread trimming is fixed by reciprocating movement in the same way as the needle raising fixing method. However, according to the above sewing method, bird's nests are easily generated on the back surfaces of the needle raising and cutting portions, which is very unattractive, and when the sewing method is used for turning, the needle is very easily broken without raising the needle again, and the back surface sewing thread is very messy when raising the needle many times. Therefore, in order to improve the sewing effect, for example, the chinese invention application with application number 2016112105906 discloses a sewing machine, which comprises a first driver and a first connecting rod, wherein the first connecting rod is rotatably connected to the bottom plate of the machine shell, one end of the first connecting rod is connected with the movable part of the first driver, the other end of the first connecting rod is connected with the movable part of the second driver, the movable part of the second driver is further connected with the second connecting rod, the first connecting rod is driven by the first driver to rotate, so that the other end of the first connecting rod can drive the second connecting rod to move to realize the adjustment to the corresponding stitch length close-sewing, and the action of the first driver is controlled by a controller. The sewing machine arranged according to the structure enables the thread end to be firm and increases the attractive appearance by performing close sewing before thread trimming. However, the sewing machine is additionally provided with the second driver, so that the overall layout is changed, the application range is narrow, and the modification cost is high. Meanwhile, the sewing machine can only carry out close sewing in the thread cutting stage, and has no improvement on needle raising.
Disclosure of Invention
The invention aims to solve the technical problem of providing a driving device of a sewing machine and a control method, wherein the driving device is beautiful, economic and environment-friendly, is convenient to replace, does not need to manually adjust a tight seam mode and a sparse seam mode, and can directly carry out turning sewing.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a driving device of a sewing machine comprises a chip, a multi-stage electric control driving assembly and a pedal plate, wherein the multi-stage electric control driving assembly comprises a main driver and a slave driver which are coaxially connected, the main driver, the slave driver and the pedal plate are electrically connected with the chip, the different placement states of the pedal plate control the working signal sending states of the chip, and the chip controls the multi-stage electric control driving assembly to operate different levels of driving modes and adjust the needle pitch.
Preferably, the multistage electrically controlled driving assembly further comprises a transmission assembly and a cloth feeding device, the main driver is fixed on the sewing machine, and the other end of the auxiliary driver is connected to the cloth feeding device through the transmission assembly.
Preferably, the main driver comprises a main base fixed on the sewing machine, a main mandrel protruding towards the direction of the main driver is arranged in the center of the main base, a main coil is arranged in the main mandrel, a main connecting sleeve is sleeved outside the main base, and the main connecting sleeve moves towards the direction of the main base when the main coil generates magnetic force; the structure of the slave driver is the same as that of the master driver, and the slave driver and the master driver are connected to the master connecting sleeve in a manner of central shaft symmetry.
Preferably, an elastic component (phi) extending along the axial direction of the main spindle and the main connecting sleeve is arranged between the main spindle of the main driver and the main connecting sleeve, and an elastic component (phi) extending along the axial direction of the main spindle and the auxiliary connecting sleeve is arranged between the auxiliary spindle of the auxiliary driver and the auxiliary connecting sleeve, so that the main spindle and the main connecting sleeve and the auxiliary spindle and the auxiliary connecting sleeve always have a tendency of being away from each other.
A control method of a driving device of a sewing machine comprises the following steps: a needle-raising close stitch mode: the pedal is horizontally placed, the chip sends a working signal to the main driver, the main driver drives the distance S1, the whole auxiliary driver is driven to move towards the main driver, and the cloth feeding device is driven to displace through the linkage of the transmission assembly to form a dense needle pitch; gap-dredging mode: after the preset T1 time of the chip, the chip sends a working signal to the slave driver, so that the slave driver continues to drive the distance S2 on the basis of the driving distance S1 of the master driver, and the cloth feeding device is displaced by the linkage of the transmission assemblies to form a needle thinning distance; thread cutting and seam sealing mode: the blocking chip sends a working signal to the slave driver by the back stepping of the pedal, the slave driver stops working, only the master driver drives the distance S1, and the transmission component is linked to enable the cloth feeding device to generate displacement, so that a dense needle is formed.
Preferably, the method comprises the following steps: the method comprises a step of pre-preparing, wherein the step of pre-preparing enables a pedal to be stepped forward, and a blocking chip sends signals to a multi-stage electric control driving assembly.
Preferably, the method further comprises the following steps: the pedal is stepped on forwards again and is horizontally placed, the chip sends a working signal to the multistage electric control driving assembly again, and the pedal sequentially goes through a needle raising and seam sealing mode, a seam thinning mode and a thread cutting and seam sealing mode.
Preferably, in the thread cutting close-seam mode, the chip stops sending the working signal to the main driver within the time T2 after the pedal is stepped backwards, and the thread cutting close-seam mode is ended.
Preferably, the ratio of the driving distance S1 of the master driver to the driving distance S2 of the slave driver is 1: 2 to 10.
Preferably, the close sewing distance between the needle raising close sewing mode and the thread cutting close sewing mode is 0.5 mm-2 cm.
Compared with the prior art, the invention has the advantages that the chip is controlled through the placement state of the pedal plate, the main driver and the auxiliary driver are respectively driven, different driving distances are formed, the dense seam state and the open seam state are generated in a linkage manner, the operation is simple and convenient, and the needle pitch does not need to be manually adjusted. And the tight sewing state avoids the bird nest structure caused by the reciprocating sewing at present, the appearance is attractive and elegant, the thread cutting tight sewing and the needle setting tight sewing can be seamlessly combined when the sewing is performed in a turning way, and the thread cutting is not needed, so that the assembly line operation is suitable. Meanwhile, the bird nest prevention sewing machine only changes the existing integrated driver into the main driver and the auxiliary driver which are connected with each other, so that the overall layout cannot be changed, the replacement is convenient, and the economy is saved.
Drawings
Fig. 1 is a schematic view of a control method of a sewing machine driving apparatus according to an embodiment of the present invention.
FIG. 2 is a layout view of the components in the housing of the conventional sewing machine.
Fig. 3 is a perspective view of a multi-stage driver of the sewing machine driving apparatus according to the embodiment of the present invention.
Fig. 4 is a sectional view of a multi-stage driver of a sewing machine driving apparatus according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the control method of the driving device of the sewing machine of the present invention includes a needle raising close-stitch mode, a thread thinning mode and a thread cutting close-stitch mode. The driving device of the sewing machine comprises a chip (not shown in the figure), a multi-stage electric control driving assembly and a pedal (not shown in the figure), wherein the multi-stage electric control driving assembly and the pedal are electrically connected with the chip. The multi-stage electric control driving assembly comprises a multi-stage driver 2, a transmission assembly and a cloth feeding device (not shown in the figure), the structural layout of the driving device of the sewing machine is similar to that of the driving device of the existing sewing machine in the figure 2, the one-stage driver 2' in the figure 2 is changed into the multi-stage driver 2, and other accessories do not need to be replaced by the arrangement, so that the replacement cost is saved. The multi-stage driver 2 comprises a main driver 21 and a slave driver 22 which are coaxially connected, the main driver 21 is fixed on the machine shell 1, the other end of the slave driver 22 is connected to the cloth feeding device through a transmission assembly, the transmission assembly comprises a connecting rod 31 and a swinging plate seat 32 which are mutually connected, the connecting rod 31 is connected with the slave driver 22, and the swinging plate seat 32 is connected with the cloth feeding assembly. The user controls the working signal sending state of the chip through different placing states of the pedal plate, and then the multi-stage electric control driving assembly is controlled to operate driving modes of different levels, so that the needle pitch is adjusted, and conversion of each mode is achieved. Preferably, the pedal is laid flat without any action, the pedal front stepping blocking chip sends a signal, and the pedal rear stepping blocking chip sends an operation signal to the slave driver to stop the slave driver.
As shown in fig. 3-4, the main driver 21 includes a main base 211 fixed on the housing 1, a main spindle 212 axially protruding toward the direction from the driver 22 is disposed in the center of the main base 211, a main coil 214 is disposed in the main spindle 212, the main coil 214 is electrically connected to the chip and can generate magnetic force when being powered on, a main connecting sleeve 213 is disposed outside the main base 211, and the main connecting sleeve 213 can move toward the main base 211 when the main coil 214 generates magnetic force. The slave driver 22 has a structure similar to that of the master driver 21 and is connected to the master connecting sleeve 213 in a central axis symmetrical manner. The main driver 21 and the slave driver 22 only differ in that the slave connecting sleeve 223 of the slave driver 22 is fixed on the main connecting sleeve 211, and the slave base 221 of the slave driver 22 is connected with the connecting rod 31. In order to enable the main driver 21 and the slave driver 22 to return to the original positions under the condition of no work, elastic components 215 and 225 are arranged between the mandrels 212 and 222 and the connecting sleeves 213 and 223 of the two in the axial direction of the mandrels, so that the main mandrel 212 and the main connecting sleeve 213, and the slave mandrel 222 and the slave connecting sleeve 223 have the tendency of moving away from each other.
Referring to fig. 1 to 4, the method for controlling the driving device of the sewing machine of the present invention comprises the steps of:
A. preparing: the main power supply of the sewing machine is started, the pedal is stepped forward, and the blocking chip sends a signal to the multi-stage electric control driving assembly to enable the chip to be in a pre-preparation state.
B. Cloth feeding: the cloth is placed on the cloth feeding device, then the pedal is placed flat, and at the moment, the chip sends working signals to the multi-stage electric control driving assembly.
C. A needle-raising close stitch mode: the chip firstly sends a working signal to the main driver 21, so that the main driver 21 is electrified to generate magnetic force, the main connecting sleeve 213 moves towards the main spindle 212 for a distance of S1, the whole slave driver 22 is driven to move towards the main driver 21, and the connecting rod 31 and the swinging plate seat 32 are sequentially linked, so that the cloth feeding device generates displacement. Since only the main actuator 21 is operated, the driving distance of the main actuator 21 is small, and the displacement of the cloth feeding device is small, thereby forming a fine pitch.
D. Gap-dredging mode: after the preset time T1, the chip sends an operating signal to the slave driver 22, so that the slave driver 22 is also energized to generate magnetic force, and the slave mandrel 222 moves to the slave connecting sleeve 223 by a distance S2, that is, the slave mandrel 222 continues to move on the basis of the movement of the whole slave driver 22 to the master driver 21, and the moving distance is S1+ S2. Therefore, the main driver 21 and the sub driver 22 operate simultaneously, and the distance generated by the common driving of the two drivers is large, so that the displacement generated by the cloth feeding device is large, and the needle thinning distance is formed.
E. Thread cutting and seam sealing mode: when the foot pedal is stepped backwards, the blocking chip sends an operating signal to the slave driver 22, the magnetic force of the slave driver 22 disappears, that is, only the master driver 21 operates, the driving state is the same as that of the needle raising and seam sealing mode, so that the needle sealing distance is formed, and in the time T2 after the foot pedal is stepped backwards, the chip stops sending the operating signal to the master driver 21, and the thread cutting and seam sealing mode is completed.
F. And (3) turning sewing: when needing to turn and sew, step on the running-board forward again and then keep flat, the chip resends the working signal to multistage automatically controlled drive assembly to experience in proper order and get up the needle and close the seam mode, sparse seam mode and trimming close the seam mode.
The working state of the chip is restarted by stepping on the pedal, so that the accident that the pedal is kept flat to continue sewing due to the fact that a person leaves can be avoided, and the safety of a user is guaranteed.
G. And (4) ending: when the sewing work is finished, namely the thread cutting close sewing mode is finished, the main power supply is turned off.
The close-seam distance in the C, E step is 0.5mm to 2cm, and the close-seam distance can ensure both the fixing effect and the beauty, and is preferably 1 cm. At the same stitch distance, the stitch closing times T1, T2 are inversely related to the stitch gauge, and the stitch gauge is positively related to the driving distance of the multi-stage driver. Therefore, in order to improve the close joint effect, the ratio of S1 to S2 is 1: 2-10, preferably S1 to S2 is 1: 4; the number of needles is 5 to 50 needles, preferably 15 needles.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (9)
1. A drive device of a sewing machine is characterized in that: the multi-stage electric control driving assembly comprises a chip, a multi-stage electric control driving assembly and a pedal, wherein the multi-stage electric control driving assembly comprises a main driver (21) and a slave driver (22) which are coaxially connected, the main driver (21), the slave driver (22) and the pedal are electrically connected with the chip, the different placement states of the pedal control the working signal sending state of the chip, the chip controls the multi-stage electric control driving assembly to operate different levels of driving modes, and the needle pitch is adjusted;
the control method adopted by the driving device comprises the following steps:
a needle-raising close stitch mode: the pedal is horizontally placed, the chip sends a working signal to the main driver (21), the main driver (21) drives the distance S1, the whole slave driver (22) is driven to move towards the main driver (21), and the cloth feeding device is driven to displace through the linkage of the transmission assembly to form a dense needle pitch;
gap-dredging mode: after the preset T1 time of the chip, the chip sends a working signal to the slave driver (22), so that the slave driver (22) continuously drives the distance S2 on the basis of the driving distance S1 of the master driver (21), and the cloth feeding device generates displacement through linkage of the transmission assembly to form a needle thinning distance;
thread cutting and seam sealing mode: the blocking chip sends an operating signal to the slave driver (22) by the back stepping of the pedal, the slave driver (22) stops operating, only the master driver (21) drives the distance S1, and the cloth feeding device is displaced by the linkage of the transmission assembly, so that the dense needle is formed.
2. A drive device of a sewing machine according to claim 1, characterized in that: the multi-stage electric control driving assembly further comprises a transmission assembly and a cloth feeding device, the main driver (21) is fixed on the sewing machine, and the other end of the auxiliary driver (22) is connected to the cloth feeding device through the transmission assembly.
3. A drive device of a sewing machine according to claim 1, characterized in that: the main driver (21) comprises a main base (211) fixed on the sewing machine, a main mandrel (212) protruding towards the direction of the auxiliary driver (22) is arranged in the center of the main base (211), a main coil (214) is arranged in the main mandrel (212), a main connecting sleeve (213) is sleeved outside the main base (211), and the main connecting sleeve (213) moves towards the direction of the main base (211) when the main coil (214) generates magnetic force; the structure of the slave driver (22) is the same as that of the master driver (21), and the slave driver and the master driver are connected to the master connecting sleeve (213) in a central shaft symmetrical mode.
4. A drive device of a sewing machine according to claim 3, characterized in that: elastic components (215, 225) extending along the axial direction of the main drive (22) are arranged between the main spindle (212) of the main drive (21) and the main connecting sleeve (213), and elastic components (215, 225) extending along the axial direction of the auxiliary drive (22) and the auxiliary connecting sleeve (223) of the auxiliary drive (22) are arranged between the auxiliary spindle (222) of the auxiliary drive (22), so that the main spindle (212) and the main connecting sleeve (213) and the auxiliary spindle (222) and the auxiliary connecting sleeve (223) always have the tendency of mutually separating.
5. A drive device of a sewing machine according to claim 1, characterized in that: the method comprises the following steps: the method comprises a step of pre-preparing, wherein the step of pre-preparing enables a pedal to be stepped forward, and a blocking chip sends signals to a multi-stage electric control driving assembly.
6. A drive device of a sewing machine according to claim 1, characterized in that: still include the turn sewing: the pedal is stepped on forwards again and is horizontally placed, the chip sends a working signal to the multistage electric control driving assembly again, and the pedal sequentially goes through a needle raising and seam sealing mode, a seam thinning mode and a thread cutting and seam sealing mode.
7. A drive device of a sewing machine according to claim 1, characterized in that: in the thread cutting close-seam mode, the chip stops sending working signals to the main driver (21) within T2 time after the pedal is stepped backwards, and the thread cutting close-seam mode is finished.
8. A drive device of a sewing machine according to claim 1, characterized in that: the ratio of the driving distance S1 of the master driver (21) to the driving distance S2 of the slave driver (22) is 1: 2 to 10.
9. A drive device of a sewing machine according to claim 1, characterized in that: the close sewing distance between the needle raising close sewing mode and the thread cutting close sewing mode is 0.5 mm-2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811596692.5A CN109736023B (en) | 2018-12-15 | 2018-12-15 | Driving device of sewing machine and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811596692.5A CN109736023B (en) | 2018-12-15 | 2018-12-15 | Driving device of sewing machine and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109736023A CN109736023A (en) | 2019-05-10 |
| CN109736023B true CN109736023B (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811596692.5A Expired - Fee Related CN109736023B (en) | 2018-12-15 | 2018-12-15 | Driving device of sewing machine and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203205181U (en) * | 2013-04-08 | 2013-09-18 | 河北科技大学 | Multi-stroke control electromagnet |
| CN203440614U (en) * | 2013-05-02 | 2014-02-19 | 新杰克缝纫机股份有限公司 | Control device for needle distance of sewing machine |
| JP2014161373A (en) * | 2013-02-21 | 2014-09-08 | Aisin Seiki Co Ltd | Sewing machine |
| CN206109688U (en) * | 2016-09-30 | 2017-04-19 | 浙江中捷缝纫科技有限公司 | Sewing machine's gauge needle adjustment mechanism |
| CN106637733A (en) * | 2016-12-24 | 2017-05-10 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN107326555A (en) * | 2017-08-07 | 2017-11-07 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN107587274A (en) * | 2017-09-14 | 2018-01-16 | 西安标准工业股份有限公司 | A kind of mechanism and its implementation for realizing close joint and being reinforced with needle space changable |
| CN107731447A (en) * | 2017-09-29 | 2018-02-23 | 北京航空航天大学 | A kind of dual drive formula two-pass electromagnet |
| CN209260339U (en) * | 2018-10-11 | 2019-08-16 | 浙江川田缝纫机有限公司 | A kind of adjustable electric control driving device of sewing needle distance density |
-
2018
- 2018-12-15 CN CN201811596692.5A patent/CN109736023B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014161373A (en) * | 2013-02-21 | 2014-09-08 | Aisin Seiki Co Ltd | Sewing machine |
| CN203205181U (en) * | 2013-04-08 | 2013-09-18 | 河北科技大学 | Multi-stroke control electromagnet |
| CN203440614U (en) * | 2013-05-02 | 2014-02-19 | 新杰克缝纫机股份有限公司 | Control device for needle distance of sewing machine |
| CN206109688U (en) * | 2016-09-30 | 2017-04-19 | 浙江中捷缝纫科技有限公司 | Sewing machine's gauge needle adjustment mechanism |
| CN106637733A (en) * | 2016-12-24 | 2017-05-10 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN107326555A (en) * | 2017-08-07 | 2017-11-07 | 杰克缝纫机股份有限公司 | A kind of sewing machine |
| CN107587274A (en) * | 2017-09-14 | 2018-01-16 | 西安标准工业股份有限公司 | A kind of mechanism and its implementation for realizing close joint and being reinforced with needle space changable |
| CN107731447A (en) * | 2017-09-29 | 2018-02-23 | 北京航空航天大学 | A kind of dual drive formula two-pass electromagnet |
| CN209260339U (en) * | 2018-10-11 | 2019-08-16 | 浙江川田缝纫机有限公司 | A kind of adjustable electric control driving device of sewing needle distance density |
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