CN104358042A - Thread shearing mechanism of pattern sewing machine - Google Patents
Thread shearing mechanism of pattern sewing machine Download PDFInfo
- Publication number
- CN104358042A CN104358042A CN201410767160.9A CN201410767160A CN104358042A CN 104358042 A CN104358042 A CN 104358042A CN 201410767160 A CN201410767160 A CN 201410767160A CN 104358042 A CN104358042 A CN 104358042A
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- China
- Prior art keywords
- sewing machine
- hinged
- eccentric wheel
- connecting rod
- drive rod
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms
Abstract
The invention provides a thread shearing mechanism of a pattern sewing machine, belongs to the technical field of sewing devices and aims at solving the technical problem of low accuracy of thread shearing actions and the like of the thread shearing mechanism of an existing pattern sewing machine. The thread shearing mechanism comprises a motor and a mounting base, wherein the motor is fixedly arranged on the mounting base; an eccentric wheel is fixedly arranged on an output shaft of the motor; the mounting base is hinged with a driving rod; the eccentric wheel props against the driving rod and is capable of enabling the driving rod to swing around a hinge point; the driving rod is connected with a connection rod and is capable of driving the connection rod to carry out reciprocal rectilinear motion; one end of the connection rod is hinged with the driving rod; the other end of the connection rod is connected with a shearing structure; the shearing structure comprises a fixed blade and a movable blade; the connection rod is hinged with the movable blade and is capable of driving the movable blade and the fixed blade to do shearing motion; a sensor capable of sending the rotation position of the eccentric wheel is also fixedly arranged on the mounting base. According to the thread shearing mechanism of the pattern sewing machine, the shearing structure and a power structure are partitioned; the connection rod is used for transmitting moment; the layout and the installation of the inner space of the sewing machine are facilitated.
Description
Technical field
The invention belongs to technical field of sewing equipment, relate to a kind of pattern sewing machine, particularly a kind of thread cutting mechanism of pattern sewing machine.
Background technology
Electro-pattern-sewing machine is the machinery of contemporary state-of-the-art handbag factory, Shoes Factory, case and bag factory, clothing factory, leatherware factory, Furniture Factory's use, it can make traditional manual style obtain high speed, high efficiency realization, and can also realize manual style and to be beyond one's reach the requirement of " multi-level, multi-functional, uniformity and perfection ".It is a kind of electronic product embodying multiple high and new technology.Thread cutting mechanism is the important component part in pattern sewing machine, for the automatic shearing in sewing process, greatly can improve sewing efficiency.
China's patent (notification number: CN202705688U, the day for announcing: 2013-01-30) disclose a kind of automatic thread severing device of sewing machine, comprising to cooperatively interact cuts off the moving knife of line, stationary knife, connecting rod and trimming electromagnet, stationary knife is fixed on Sewing machines support, one end of moving knife and connecting rod is fixed on trimming knife rest, trimming knife rest is sleeved on lower shaft, the other end of connecting rod and one end of drive link hinged, the other end of drive link is connected with the dynamic iron of trimming electromagnet, feed lifting rock shaft is provided with trimming cam, trimming cam is positioned at the side of drive link, drive link is fixed with the straight pin driving drive link movement with trimming cam engagement.
The automatic thread severing device of sewing machine that above-mentioned patent provides drives moving knife motion by connecting rod, thus jointly form shearing motion with stationary knife and complete trimming action, connecting rod is driven by drive link and electromagnet, its moving process poor stability, the driving accuracy of electromagnet is poor, electromagnet energising is wayward for opportunity in addition, easily causes misoperation or reduction operating efficiency slow in reacting.
Summary of the invention
The present invention is directed to the problems referred to above that existing technology exists, provide a kind of thread cutting mechanism of pattern sewing machine, technical problem to be solved by this invention is: the accuracy how improving thread cutting mechanism trimming action in pattern sewing machine.
Object of the present invention realizes by following technical proposal:
A kind of thread cutting mechanism of pattern sewing machine, it is characterized in that, described thread cutting mechanism comprises motor and mount pad, described motor is installed on mount pad, the output shaft of described motor is installed with eccentric wheel, described mount pad is hinged with drive rod, described eccentric wheel and described drive rod lean and drive rod can be made to swing around pin joint, described drive rod is connected with connecting rod and described drive rod can drive described connecting rod to do linear reciprocating motion, one end and the described drive rod of described connecting rod are hinged, the other end of described connecting rod is connected with shear constitution, described shear constitution comprises stationary knife and moving knife, described connecting rod and described moving knife are hinged and described moving knife and stationary knife can be driven to do shearing motion, described mount pad is also installed with the inductor can responding to eccentric wheel position of rotation.
Its principle is as follows: the thread cutting mechanism of this pattern sewing machine is mainly used in the trimming of pattern sewing machine, is finally driven the shear constitution action under needle plate, complete trimming in predetermined time by the thread cutting mechanism of Sewing machines inside.Specifically, driven by motor eccentric wheel rotates, eccentric wheel drives drive rod to become to swing by convert rotational motion, and the swing of drive rod changes into the linear reciprocating motion of connecting rod, and connecting rod is converted into by shear constitution and swings thus drive moving knife to complete shearing motion; This eccentric wheel passes to the drive rod near its edge the rotary motion of self and does linear reciprocating motion by drive rod connecting rod, thus drive moving knife and stationary knife to do shearing motion to complete trimming action, this gyration makes eccentric wheel often rotate a circle and just completes a trimming.In order to adapt to the internal space construction of Sewing machines, be convenient to install, by shear constitution and dynamic structure separated and utilize connecting rod carry-over moment, on mount pad, the inductor can responding to eccentric wheel position of rotation is installed with in the technical program, this inductor can judge the state of final shear constitution by responding to eccentric position, make trimming become more precisely errorless; The cutting mechanism that this inductor can ensure Sewing machines is the return function of motor and small change position in the course of the work, and restPoses.Easy to use, automaticity is high, greatly improves sewing efficiency and the precision making trimming in process.
In the thread cutting mechanism of above-mentioned pattern sewing machine, described eccentric wheel bottom surface offers the groove in circumferentially path, the two side of described groove is in the even surface be parallel to each other and described groove has female parts to eccentric wheel center, one end of described drive rod is hinged on described mount pad, the other end and the described connecting rod of described drive rod are hinged, the middle part of described drive rod is connected with roller, and described roller is plugged in described eccentric groove.This eccentric wheel structure makes drive rod when being arranged in groove, the free degree in restriction other directions of drive rod, there will not be sideslip and come off, spacing this drive rod that makes additionally by groove two side does not need resetting structure, more simple and convenient, reduce fault rate, improve precision, rolled in eccentric groove by roller, drive the swing of drive rod, according to lever principle, roller is arranged on the middle part near pin joint, what make roller can the larger displacement of drivening rod compared with thin tail sheep, thus be convenient to connecting rod drive moving knife do shearing motion, ensure that effectively putting in place of shearing.
In the thread cutting mechanism of above-mentioned pattern sewing machine, the output shaft of described motor is installed with vane, described inductor and described motor cabinet are connected, and vane can be driven to rotate for the output shaft of described motor and described vane can be responded to by described inductor when described inductor.Be convenient to inductor by vane control the induction of eccentric wheel position of rotation, thus be conducive to controlling trimming action; Inductor is preferably shape of a hoof inductor, and vane can pass hoof mouth, the distance of reaction of easier like this control sensor and vane in rotation process, strengthens inductive effects.
In the thread cutting mechanism of above-mentioned pattern sewing machine, described vane is fan-shaped, and the radian of described vane is slightly less than the semicircle radian of equal radius.In the technical program, eccentric wheel has often rotated a circle a trimming action, and vane has enough radians sensed device when vane rotates with motor output shaft to sense, vane also can be avoided to cause too greatly false sense should simultaneously.
In the thread cutting mechanism of above-mentioned pattern sewing machine, described stationary knife is installed in bottom the needle plate of pattern sewing machine, bottom the needle plate that the end of described moving knife is hinged on pattern sewing machine and the plane at the plane at described stationary knife place and described moving knife place be parallel to each other and be close to, the middle part of described moving knife is hinged with linking arm, and described connecting rod and described linking arm are hinged and described connecting rod can drive described linking arm and moving knife reciprocally swinging.Linear reciprocating motion is changed into the swing of linking arm by connecting rod, drives moving knife to swing, the cutting edge of moving knife and the cutting edge of stationary knife is intersected, completes shearing.
Compared with prior art, advantage of the present invention is as follows:
1, in this thread cutting mechanism by shear constitution and dynamic structure separated and utilize connecting rod carry-over moment, be convenient to Sewing machines internal space layout and installation.
2, on mount pad, be installed with the inductor can responding to eccentric wheel position of rotation in this thread cutting mechanism, this inductor can judge the state of final shear constitution by responding to eccentric position, makes trimming become more precisely errorless; The cutting mechanism that this inductor can ensure Sewing machines is the return function of motor and small change position in the course of the work, and restPoses.Easy to use, automaticity is high, greatly improves sewing efficiency and the precision making trimming in process.
3, in this thread cutting mechanism, groove is arranged to by eccentric wheel, drive rod is made to be arranged in groove and can to limit the free degree in other directions of drive rod, there will not be sideslip and come off, spacing this drive rod that makes additionally by groove two side does not need resetting structure, more simple and convenient, reduce fault rate, improve precision.
Accompanying drawing explanation
Fig. 1 is the perspective view of this thread cutting mechanism.
Fig. 2 is partial enlargement structural representation in Fig. 1.
Fig. 3 is the plan structure schematic diagram of this thread cutting mechanism.
Fig. 4 is partial enlargement structural representation in Fig. 2.
Fig. 5 is the detonation configuration schematic diagram of this thread cutting mechanism.
In figure, 1, motor; 2, mount pad; 3, eccentric wheel; 31, groove; 4, drive rod; 5, connecting rod; 6, shear constitution; 61, moving knife; 62, stationary knife; 63, linking arm; 7, needle plate; 8, roller; 9, vane; 10, inductor.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4 and Fig. 5, this thread cutting mechanism comprises motor 1 and mount pad 2, motor 1 is installed on mount pad 2, the output shaft of motor 1 is installed with eccentric wheel 3, mount pad 2 is hinged with drive rod 4, eccentric wheel 3 and drive rod 4 lean and drive rod 4 can be made to swing around pin joint, drive rod 4 is connected with connecting rod 5 and drive rod 4 can do linear reciprocating motion by drivening rod 5, one end and the drive rod 4 of connecting rod 5 are hinged, the other end of connecting rod 5 is connected with shear constitution 6, shear constitution 6 comprises stationary knife 62 and moving knife 61, stationary knife 62 is installed in bottom the needle plate 7 of pattern sewing machine, bottom the needle plate 7 that the end of moving knife 61 is hinged on pattern sewing machine and the plane at the plane at stationary knife 62 place and moving knife 61 place be parallel to each other and be close to, the middle part of moving knife 61 is hinged with linking arm 63, connecting rod 5 and linking arm 63 are hinged and connecting rod 5 can drive linking arm 63 and moving knife 61 reciprocally swinging, and moving knife 61 and stationary knife 62 do shearing motion, mount pad 2 is also installed with the inductor 10 can responding to eccentric wheel 3 position of rotation.
As shown in Figure 5, eccentric wheel 3 one bottom surfaces offer the groove 31 in circumferentially path, the two side of groove 31 is in the even surface be parallel to each other and groove 31 has female parts to eccentric wheel 3 center, one end of drive rod 4 is hinged on mount pad 2, the other end and the connecting rod 5 of drive rod 4 are hinged, the middle part of drive rod 4 is connected with roller 8, roller 8 is plugged in the groove 31 of eccentric wheel 3, drive rod 4 is when being arranged in groove 31, the free degree in other directions of drive rod 4 can be limited, there will not be sideslip and come off, spacing this drive rod 4 that makes additionally by groove 31 two side does not need resetting structure, more simple and convenient, reduce fault rate, improve precision, according to lever principle, roller 8 is arranged on the middle part near pin joint, what make roller 8 can the larger displacement of drivening rod 5 compared with thin tail sheep, thus is convenient to connecting rod 5 and drives moving knife 61 to do shearing motion, ensure that effectively putting in place of shearing.
As shown in Figure 5, the output shaft of motor 1 is installed with vane 9, inductor 10 and 1, motor are connected, vane 9 can be driven to rotate for the output shaft of motor 1 and vane 9 can be responded to by sensed device 10 when inductor 10, vane 9 is in fan-shaped, and the radian of vane 9 is slightly less than the semicircle radian of equal radius.The induction being convenient to inductor 10 pairs of eccentric wheel 3 position of rotation by vane 9 is controlled, thus is conducive to controlling trimming action; Inductor 10 is preferably shape of a hoof inductor 10, vane 9 can pass hoof mouth in rotation process, vane 9 has enough radians sensed device 10 when vane 9 rotates with motor 1 output shaft to sense, vane 9 also can be avoided simultaneously to cause too greatly false sense to answer, improve inductive effects.
The thread cutting mechanism of this pattern sewing machine is mainly used in the trimming of pattern sewing machine, is finally driven shear constitution 6 action under needle plate 7, complete trimming in predetermined time by the thread cutting mechanism of Sewing machines inside.Specifically, motor 1 is with movable eccentric wheel 3 to rotate, eccentric wheel 3 drives drive rod 4 to become to swing by convert rotational motion, and the swing of drive rod 4 changes into the linear reciprocating motion of connecting rod 5, and connecting rod 5 is converted into by shear constitution 6 and swings thus drive moving knife 61 to complete shearing motion; This eccentric wheel 3 passes to the drive rod 4 near its edge the rotary motion of self and does linear reciprocating motion by drive rod 4 connecting rod 5, linear reciprocating motion is changed into the swing of linking arm 63 by connecting rod 5, moving knife 61 is driven to swing, the cutting edge of the cutting edge of moving knife 61 and stationary knife 62 is intersected, completes shearing.This gyration makes eccentric wheel 3 often rotate a circle and just completes a trimming.In order to adapt to the internal space construction of Sewing machines, be convenient to install, by shear constitution 6 and dynamic structure separated and utilize connecting rod 5 carry-over moment, on mount pad 2, the inductor 10 can responding to eccentric wheel 3 position of rotation is installed with in the technical program, this inductor 10 can judge the state of final shear constitution 6 by the position responding to eccentric wheel 3, make trimming become more precisely errorless; The cutting mechanism that this inductor 10 can ensure Sewing machines is the return function of motor 1 and small change position in the course of the work, and restPoses.Easy to use, automaticity is high, greatly improves sewing efficiency and the precision making trimming in process.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ 1 herein, motor; 2, mount pad; 3, eccentric wheel; 31, groove; 4, drive rod; 5, connecting rod; 6, shear constitution; 61, moving knife; 62, stationary knife; 63, linking arm; 7, needle plate; 8, roller; 9, vane; 10, the term such as inductor, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (5)
1. the thread cutting mechanism of a pattern sewing machine, it is characterized in that, described thread cutting mechanism comprises motor (1) and mount pad (2), described motor (1) is installed on mount pad (2), the output shaft of described motor (1) is installed with eccentric wheel (3), described mount pad (2) is hinged with drive rod (4), described eccentric wheel (3) and described drive rod (4) lean and drive rod (4) can be made to swing around pin joint, described drive rod (4) is connected with connecting rod (5) and described drive rod (4) can drive described connecting rod (5) to do linear reciprocating motion, one end and the described drive rod (4) of described connecting rod (5) are hinged, the other end of described connecting rod (5) is connected with shear constitution (6), described shear constitution (6) comprises stationary knife (62) and moving knife (61), described connecting rod (5) and described moving knife (61) are hinged and described moving knife (61) and stationary knife (62) can be driven to do shearing motion, described mount pad (2) is also installed with the inductor (10) can responding to eccentric wheel (3) position of rotation.
2. the thread cutting mechanism of a kind of pattern sewing machine according to claim 1, it is characterized in that, described eccentric wheel (3) bottom surfaces offer the groove (31) in circumferentially path, the two side of described groove (31) is in the even surface be parallel to each other and described groove (31) has female parts to eccentric wheel (3) center, one end of described drive rod (4) is hinged on described mount pad (2), the other end and the described connecting rod (5) of described drive rod (4) are hinged, the middle part of described drive rod (4) is connected with roller (8), described roller (8) is plugged in the groove (31) of described eccentric wheel (3).
3. the thread cutting mechanism of a kind of pattern sewing machine according to claim 1 and 2, it is characterized in that, the output shaft of described motor (1) is installed with vane (9), described inductor (10) and described motor (1) seat are connected, and vane (9) can be driven to rotate for the output shaft of described motor (1) and described vane (9) can be responded to by described inductor (10) when described inductor (10).
4. the thread cutting mechanism of a kind of pattern sewing machine according to claim 3, is characterized in that, described vane (9) is in fan-shaped, and the radian of described vane (9) is slightly less than the semicircle radian of equal radius.
5. the thread cutting mechanism of a kind of pattern sewing machine according to claim 1 and 2, it is characterized in that, described stationary knife (62) is installed in needle plate (7) bottom of pattern sewing machine, the end of described moving knife (61) is hinged on needle plate (7) bottom of pattern sewing machine and the plane at the plane at described stationary knife (62) place and described moving knife (61) place is parallel to each other and is close to, the middle part of described moving knife (61) is hinged with linking arm (63), described connecting rod (5) and described linking arm (63) are hinged and described connecting rod (5) can drive described linking arm (63) and moving knife (61) reciprocally swinging.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767160.9A CN104358042B (en) | 2014-12-12 | 2014-12-12 | A kind of thread cutting mechanism of pattern sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410767160.9A CN104358042B (en) | 2014-12-12 | 2014-12-12 | A kind of thread cutting mechanism of pattern sewing machine |
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| CN104358042A true CN104358042A (en) | 2015-02-18 |
| CN104358042B CN104358042B (en) | 2016-08-24 |
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| CN201410767160.9A Active CN104358042B (en) | 2014-12-12 | 2014-12-12 | A kind of thread cutting mechanism of pattern sewing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862891A (en) * | 2015-06-17 | 2015-08-26 | 浙江中捷缝纫科技有限公司 | Thread shearing mechanism of sewing machine |
| CN105133208A (en) * | 2015-09-19 | 2015-12-09 | 浙江中捷缝纫科技有限公司 | Cloth cutter mechanism of template conveying machine |
| CN109159164A (en) * | 2018-08-21 | 2019-01-08 | 江苏惟妙纺织科技有限公司 | A kind of high efficiency garment accessories fancy edge scissors linear system system |
| CN115447867A (en) * | 2022-10-14 | 2022-12-09 | 华东交通大学 | Automatic belt cutting and winding device and method for tobacco lamina bundling belt |
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| CN1458326A (en) * | 2002-05-13 | 2003-11-26 | 重机公司 | Sewing machine |
| CN101275342A (en) * | 2007-03-28 | 2008-10-01 | Juki株式会社 | Sewing machine |
| CN101319439A (en) * | 2007-06-04 | 2008-12-10 | Juki株式会社 | Thread cut actuating device of sewing machine |
| CN204343019U (en) * | 2014-12-12 | 2015-05-20 | 浙江中捷缝纫科技有限公司 | A kind of thread cutting mechanism of pattern sewing machine |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421562A (en) * | 2001-11-26 | 2003-06-04 | 重机公司 | Device for severing lower thread on button holes-sewing sewing machine and button holes sewing machine |
| CN1458326A (en) * | 2002-05-13 | 2003-11-26 | 重机公司 | Sewing machine |
| CN101275342A (en) * | 2007-03-28 | 2008-10-01 | Juki株式会社 | Sewing machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104862891A (en) * | 2015-06-17 | 2015-08-26 | 浙江中捷缝纫科技有限公司 | Thread shearing mechanism of sewing machine |
| CN105133208A (en) * | 2015-09-19 | 2015-12-09 | 浙江中捷缝纫科技有限公司 | Cloth cutter mechanism of template conveying machine |
| CN109159164A (en) * | 2018-08-21 | 2019-01-08 | 江苏惟妙纺织科技有限公司 | A kind of high efficiency garment accessories fancy edge scissors linear system system |
| CN109159164B (en) * | 2018-08-21 | 2023-12-15 | 江苏惟妙纺织科技有限公司 | High-efficiency clothing accessory lace trimming system |
| CN115447867A (en) * | 2022-10-14 | 2022-12-09 | 华东交通大学 | Automatic belt cutting and winding device and method for tobacco lamina bundling belt |
| CN115447867B (en) * | 2022-10-14 | 2024-03-19 | 华东交通大学 | Automatic strip cutting and collecting device and method for strip cigarette binding strip |
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| CN104358042B (en) | 2016-08-24 |
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Effective date of registration: 20160928 Address after: 317604 Taizhou Province, Yuhuan County, Lantau Island Road, Hing Hong Kong Road, No. 198 Patentee after: Zhejiang Zoje Sewing Technology Co., Ltd. Patentee after: Zhejiang Zhongyi Sewing Machine Co Ltd Patentee after: Zhejiang Besserman sewing machine Co., Ltd. Address before: 317604 Taizhou Province, Yuhuan County, Lantau Island Road, Hing Hong Kong Road, No. 198 Patentee before: Zhejiang Zoje Sewing Technology Co., Ltd. |
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Effective date of registration: 20200923 Address after: 198 Xinggang East Road, Damaiyu street, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: ZHEJIANG ZOJE SEWING MACHINE Co.,Ltd. Address before: 317604, Taizhou, Zhejiang province Yuhuan County barley island Street Hing Tung Road, No. 198 Patentee before: ZHEJIANG ZOJE SEWING MACHINE Co.,Ltd. Patentee before: ZHEJIANG JOYEE SEWING MACHINE Co.,Ltd. Patentee before: ZHEJIANG BSM SEWING MACHINE Co.,Ltd. |
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