CN107268211B - Electronic cam thread picking device for computerized embroidery machine and thread picking method thereof - Google Patents
Electronic cam thread picking device for computerized embroidery machine and thread picking method thereof Download PDFInfo
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- CN107268211B CN107268211B CN201710544956.1A CN201710544956A CN107268211B CN 107268211 B CN107268211 B CN 107268211B CN 201710544956 A CN201710544956 A CN 201710544956A CN 107268211 B CN107268211 B CN 107268211B
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- thread take
- thread
- main shaft
- electronic cam
- take
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/08—Thread-tensioning arrangements
Abstract
The invention discloses an electronic cam thread taking-up device for a computer embroidery machine and a thread taking-up method thereof, comprising a computer embroidery machine control system, an electronic cam thread taking-up driving plate, a thread taking-up motor component, a thread taking-up mechanism component and a position sensor, wherein the computer embroidery machine control system is connected with a main shaft photoelectric encoder; the position sensor is used for detecting the initial position of the electronic cam thread-picking driving plate; the electronic cam thread-picking driving plate is connected with the main shaft photoelectric encoder; the electronic cam thread take-up driving plate is connected with the thread take-up motor assembly; the thread take-up motor component is connected with the thread take-up mechanism component; according to the parameters set by the control system of the computerized embroidery machine and the built-in electronic cam curve, the invention monitors the angle position information and the rotation direction information of the main shaft in real time and continuously controls the position of the thread take-up motor, thereby adjusting the thread take-up position in real time; the method realizes the settable thread take-up curve and angle of the computerized embroidery machine and improves the thread take-up accuracy and consistency of the machine.
Description
Technical Field
The invention relates to the field of computer embroidery machines, in particular to an electronic cam thread taking-up device for a computer embroidery machine and a thread taking-up method thereof.
Background
The computerized embroidery machine has the embroidery principle similar to that of a sewing machine, and is characterized in that upper threads penetrate through a fabric through a machine needle, the upper threads are hooked by a rotating shuttle below the machine needle, and the lower threads in the rotating shuttle are wound by one circle to form thread knots. In the process that the rotating shuttle hooks the upper thread to rotate for one circle, the thread taking-up lever is required to feed the thread in the former stage of rotating shuttle pulling, and the thread taking-up lever is required to take up the thread in the latter stage of rotating shuttle releasing. The cooperation of thread picking and rotating shuttle plays an extremely important role in the embroidery process, and directly influences the embroidery and thread breakage rate of the machine.
At present, the thread taking-up of the embroidery machine is completed by driving a thread taking-up lever to swing up and down by the rotation of a thread taking-up cam arranged in a machine head along with a main shaft. The thread picking mode is a mode used in the current industry and is very mature. It has a great limitation.
First, in order to accommodate different fabrics, different embroidery threads and different embroidery effects, there are many thread-picking cams with different cam curves, such as M3, M4, M5, M6, M8, etc., in the market, and high-speed machines are also different. The existing thread take-up cam is arranged in each machine head and sleeved on the main shaft, so that the variety and angle of the cam are not easy to replace and adjust, and the continuous changing requirements of users cannot be met.
Secondly, because the thread take-up mechanisms on the machine heads are relatively independent to each other and are inevitably different from each other in installation and positioning, the embroidery processed by the machine heads is uneven in effect and large in quality difference.
And the thread taking-up work is completed by rotating the nylon cam to drive the bearing to move, so that the thread taking-up precision is poorer and worse until the bearing needs to be replaced due to accumulated wear.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the electronic cam thread taking-up device for the computer embroidery machine and the thread taking-up method thereof, which have simple and practical structures.
The invention is realized by the following modes:
an electronic cam thread take-up device for a computerized embroidery machine, which is characterized in that: the automatic thread-picking machine comprises a computerized embroidery machine control system 1, an electronic cam thread-picking driving plate 3, a thread-picking motor assembly 5, a thread-picking mechanism assembly 6 and a position sensor 4, wherein the computerized embroidery machine control system 1 monitors the angle position information, the rotation direction information and the mechanical zero information of an embroidery main shaft 7 in real time through a main shaft photoelectric encoder 2; the position sensor 4 is used for detecting the initial position of the electronic cam thread-taking-up driving plate 3; the electronic cam thread take-up driving plate 3 is connected with the main shaft photoelectric encoder 2; the electronic cam thread take-up driving plate 3 is connected with the thread take-up motor assembly 5; the thread take-up motor component 5 is connected with the thread take-up mechanism component 6;
the thread take-up mechanism assembly 6 comprises a thread take-up frame 60, a thread take-up lever driving shaft 61 is arranged on the thread take-up frame 60, a thread take-up lever driving block 62 is arranged at one end of the thread take-up lever driving shaft 61, and a thread take-up lever 63 matched with the thread take-up lever driving block 62 is arranged on the thread take-up frame 60;
the thread take-up motor assembly 5 comprises a thread take-up motor 51, a main belt wheel 52 and a slave belt wheel 53, wherein the main belt wheel 52 is arranged on a driving shaft of the thread take-up motor 51; the slave pulley 53 is provided on a take-up lever drive shaft 61; the secondary belt wheel 53 is connected with the main belt wheel 52 through a transmission belt 54; the thread take-up motor 51 is connected with the electronic cam thread take-up driving plate 3;
the control system 1 of the computerized embroidery machine updates and downloads parameters set by a user to the electronic cam thread-picking driving plate 3 through a serial bus under each power-on or power-off state of the machine; the electronic cam thread take-up driving plate 3 recalculates the thread take-up curve which is required to run currently according to the received parameters, automatically controls the thread take-up motor assembly 5, and adjusts the position of the thread take-up motor 51 so that the position of the thread take-up motor 51 is positioned at the initial thread take-up position; wherein the mechanical zero position information of the embroidery main shaft 7 is obtained by real-time monitoring of the state of the embroidery main shaft 7 by the main shaft photoelectric encoder 2; the initial thread take-up position is obtained by real-time monitoring of a position sensor 4;
when the machine operates, the electronic cam thread take-up driving plate 3 continuously controls the thread take-up motor assembly 5 according to the current thread take-up curve and the angle position information and the rotation direction information of the embroidery main shaft 7, which are provided by the real-time monitoring of the main shaft photoelectric encoder 2, adjusts the position of the thread take-up motor 51 in real time, changes the position of the thread take-up driving shaft 61 through the transmission of the transmission belt 54, and then transmits the position to the thread take-up 63 through the thread take-up driving block 62, thereby completing the thread feeding and take-up work in the embroidery process.
A thread picking method of an electronic cam thread picking device for a computerized embroidery machine is characterized in that: the method comprises the following steps:
step S101: the machine is electrified again or in a stop state, the control system 1 of the computerized embroidery machine needs to detect whether the machine is stopped at a mechanical zero position, and the mechanical zero position information is obtained by monitoring the state of the embroidery main shaft 7 in real time by the main shaft photoelectric encoder 2;
step S102: the control system 1 of the computerized embroidery machine provides a parameter setting page and downloads parameters to the electronic cam thread-picking driving plate 3;
step S103: the electronic cam thread take-up driving plate 3 calculates a thread take-up curve which is required to run currently according to the received parameters, automatically controls the thread take-up motor assembly 5 and adjusts the position of the thread take-up motor 51 to the thread take-up initial position corresponding to the mechanical zero point; the initial thread take-up position is obtained by real-time monitoring of a position sensor 4;
step S104: the position change and the angle position change of the embroidery main shaft 7 are obtained by real-time monitoring of the embroidery main shaft 7 by the main shaft photoelectric encoder 2;
step S105: the electronic cam thread take-up driving plate 3 calculates the angle position of the thread take-up motor 51 corresponding to the angle of the current embroidery spindle 7 according to the angle information of the embroidery spindle 7 and the current running thread take-up curve, and controls the thread take-up motor 51 to reach the corresponding position for working.
The invention has the beneficial effects that: 1. digitizing different cam curves, solidifying the cam curves on a control system of the computerized embroidery machine or an electronic cam thread-picking driving plate, and adding corresponding parameters on the control system of the computerized embroidery machine for a user to select and adjust; the electronic cam thread take-up driving plate calculates a cam curve which runs currently according to the set parameter value and controls the motor to drive the thread take-up lever synchronous main shaft to finish thread take-up action; 2. the cam curve digitization is realized in the way that a common person can switch different thread picking cams without adjusting a machine, so as to try to adapt to different fabrics and different embroidery threads, thereby achieving an ideal effect; greatly facilitates the installers of the mechanical factory and greatly improves the quality of the final user.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the take-up motor assembly and take-up mechanism assembly of the present invention;
FIG. 3 is a schematic flow chart of the thread take-up method of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described below through specific embodiments and with reference to the accompanying drawings. It should be understood that the embodiments of the present invention are not limited to the following examples, and that any modifications and/or changes made to the present invention will fall within the scope of the present invention.
Examples:
as shown in fig. 1 and 2, an electronic cam thread take-up device for a computer embroidery machine comprises a computer embroidery machine control system 1, an electronic cam thread take-up driving plate 3, a thread take-up motor component 5, a thread take-up mechanism component 6 and a position sensor 4, wherein the computer embroidery machine control system 1 monitors angle position information, rotation direction information and mechanical zero information of an embroidery main shaft 7 in real time through a main shaft photoelectric encoder 2; the position sensor 4 is used for detecting the initial position of the electronic cam thread-picking driving plate 3; the electronic cam thread take-up driving plate 3 is connected with the main shaft photoelectric encoder 2; the electronic cam thread take-up driving plate 3 is connected with the thread take-up motor assembly 5; the thread take-up motor component 5 is connected with the thread take-up mechanism component 6; the thread take-up mechanism assembly 6 comprises a thread take-up frame 60, a thread take-up lever driving shaft 61 is arranged on the thread take-up frame 60, a thread take-up lever driving block 62 is arranged at one end of the thread take-up lever driving shaft 61, and a thread take-up lever 63 matched with the thread take-up lever driving block 62 is arranged on the thread take-up frame 60; the thread take-up motor assembly 5 comprises a thread take-up motor 51, a main belt pulley 52 and a secondary belt pulley 53, wherein the main belt pulley 52 is arranged on a driving shaft of the thread take-up motor 51; the slave pulley 53 is provided on the take-up lever drive shaft 61; the slave pulley 53 is connected with the master pulley 52 through a transmission belt 54; the thread take-up motor 51 is connected to the electronic cam thread take-up driving plate 3.
The control system 1 of the computerized embroidery machine updates and downloads parameters set by a user to the electronic cam thread-picking driving plate 3 through a serial bus under each power-on or power-off state of the machine; the electronic cam thread take-up driving plate 3 recalculates the thread take-up curve which is required to run currently according to the received parameters, automatically controls the thread take-up motor assembly 5, and adjusts the position of the thread take-up motor 51 so that the position of the thread take-up motor 51 is positioned at the initial thread take-up position; wherein the mechanical zero position information of the embroidery main shaft 7 is obtained by real-time monitoring of the state of the embroidery main shaft 7 by the main shaft photoelectric encoder 2; the initial thread take-up position is obtained by real-time monitoring of a position sensor 4;
when the machine operates, the electronic cam thread take-up driving plate 3 continuously controls the thread take-up motor assembly 5 according to the current thread take-up curve and the angle position information and the rotation direction information of the embroidery main shaft 7, which are provided by the real-time monitoring of the main shaft photoelectric encoder 2, adjusts the position of the thread take-up motor 51 in real time, changes the position of the thread take-up driving shaft 61 through the transmission of the transmission belt 54, and then transmits the position to the thread take-up 63 through the thread take-up driving block 62, thereby completing the thread feeding and take-up work in the embroidery process.
The control system 1 of the computerized embroidery machine can set the cam thread-picking curve, angle and other thread-picking related parameters.
The electronic cam thread take-up driving plate 3 is connected with the control system 1 of the computerized embroidery machine through a CAN or 485 bus.
The cam thread take-up driving plate 3 is connected with the thread take-up motor component 5 through a control signal wire.
As shown in fig. 3, a thread picking method of an electronic cam thread picking device for a computerized embroidery machine is specifically as follows:
step S101: the machine is electrified again or in a stop state, the control system 1 of the computerized embroidery machine needs to detect whether the machine is stopped at a mechanical zero position, and the mechanical zero position information is obtained by monitoring the state of the embroidery main shaft 7 in real time by the main shaft photoelectric encoder 2;
step S102: the control system 1 of the computerized embroidery machine provides a parameter setting page and downloads parameters to the electronic cam thread-picking driving plate 3;
step S103: the electronic cam thread take-up driving plate 3 calculates a thread take-up curve which is required to run currently according to the received parameters, automatically controls the thread take-up motor assembly 5 and adjusts the position of the thread take-up motor 51 to the thread take-up initial position corresponding to the mechanical zero point; the initial thread take-up position is obtained by real-time monitoring of a position sensor 4;
step S104: the position change and the angle position change of the embroidery main shaft 7 are obtained by real-time monitoring of the embroidery main shaft 7 by the main shaft photoelectric encoder 2;
step S105: the electronic cam thread take-up driving plate 3 calculates the angle position of the thread take-up motor 51 corresponding to the angle of the current embroidery spindle 7 according to the angle information of the embroidery spindle 7 and the current running thread take-up curve, and controls the thread take-up motor 51 to reach the corresponding position for working.
The invention solves the inherent defects of difficult replacement and adjustment of the variety and angle of the current mechanical cam thread-taking-up curve, influence of cam abrasion on precision and the like, realizes settable thread-taking-up curve and thread-taking-up angle of the computerized embroidery machine, and improves thread-taking-up precision and consistency of the machine. The embroidery adaptability is stronger, the embroidery is more beautiful, the breakage rate is lower, and the diversified requirements are met.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (2)
1. An electronic cam thread take-up device for a computerized embroidery machine, which is characterized in that: the automatic thread-picking machine comprises a computerized embroidery machine control system (1), an electronic cam thread-picking driving plate (3), a thread-picking motor assembly (5), a thread-picking mechanism assembly (6) and a position sensor (4), wherein the computerized embroidery machine control system (1) monitors angle position information, rotation direction information and mechanical zero information of an embroidery main shaft (7) in real time through a main shaft photoelectric encoder (2); the position sensor (4) is used for detecting the initial position of the electronic cam thread-taking-up driving plate (3); the electronic cam thread take-up driving plate (3) is connected with the main shaft photoelectric encoder (2); the electronic cam thread take-up driving plate (3) is connected with the thread take-up motor assembly (5); the thread take-up motor assembly (5) is connected with the thread take-up mechanism assembly (6);
the thread take-up mechanism assembly (6) comprises a thread take-up frame (60), a thread take-up lever driving shaft (61) is arranged on the thread take-up frame (60), a thread take-up lever driving block (62) is arranged at one end of the thread take-up lever driving shaft (61), and a thread take-up lever (63) matched with the thread take-up lever driving block (62) is arranged on the thread take-up frame (60);
the thread take-up motor assembly (5) comprises a thread take-up motor (51), a main belt wheel (52) and a slave belt wheel (53), wherein the main belt wheel (52) is arranged on a driving shaft of the thread take-up motor (51); the slave pulley (53) is arranged on a thread take-up lever driving shaft (61); the auxiliary belt wheel (53) is connected with the main belt wheel (52) through a transmission belt (54); the thread take-up motor (51) is connected with the electronic cam thread take-up driving plate (3);
under the state of power-on or power-off of the machine each time, the control system (1) of the computerized embroidery machine updates and downloads parameters set by a user to the electronic cam thread-taking-up driving plate (3) through a serial bus; the electronic cam thread take-up driving plate (3) recalculates a thread take-up curve which is required to run at present according to the received parameters, automatically controls the thread take-up motor assembly (5) and adjusts the position of the thread take-up motor (51) so that the position of the thread take-up motor (51) is positioned at the initial thread take-up position; wherein, the mechanical zero position information of the embroidery main shaft (7) is obtained by monitoring the state of the embroidery main shaft (7) in real time by a main shaft photoelectric encoder (2); the initial thread picking position is obtained by real-time monitoring of a position sensor (4);
when the machine operates, the electronic cam thread take-up driving plate (3) continuously controls the thread take-up motor assembly (5) according to the current thread take-up curve and the angle position information and the rotation direction information of the embroidery main shaft (7) provided by the real-time monitoring of the main shaft photoelectric encoder (2), the position of the thread take-up motor (51) is adjusted in real time, the position of the thread take-up driving shaft (61) is changed through the transmission of the transmission belt (54), the thread take-up position is transmitted to the thread take-up lever (63) through the thread take-up driving block (62), and the thread feeding and the thread take-up work in the embroidery process is completed in real time.
2. A thread take-up method of an electronic cam thread take-up device for a computerized embroidery machine as claimed in claim 1, characterized in that: the method comprises the following steps:
step S101: the machine is electrified again or in a stop state, a control system (1) of the computerized embroidery machine needs to detect whether the machine is stopped at a mechanical zero position, and the mechanical zero position information is obtained by monitoring the state of an embroidery main shaft (7) in real time by a main shaft photoelectric encoder (2);
step S102: the control system (1) of the computerized embroidery machine provides a parameter setting page and downloads parameters to the electronic cam thread-picking driving plate (3);
step S103: the electronic cam thread take-up driving plate (3) calculates a thread take-up curve which needs to be operated currently according to the received parameters, automatically controls the thread take-up motor assembly (5) and adjusts the position of the thread take-up motor (51) to the thread take-up initial position corresponding to the mechanical zero point; the initial thread take-up position is obtained by monitoring in real time by a position sensor (4);
step S104: the position change and the angle position change of the embroidery main shaft (7) are obtained by monitoring the embroidery main shaft (7) in real time by a main shaft photoelectric encoder (2);
step S105: the electronic cam thread take-up driving plate (3) calculates the angle position of the thread take-up motor (51) corresponding to the angle of the current embroidery main shaft (7) according to the angle information of the embroidery main shaft (7) and the current running thread take-up curve, and controls the thread take-up motor (51) to reach the corresponding position for working.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710544956.1A CN107268211B (en) | 2017-07-06 | 2017-07-06 | Electronic cam thread picking device for computerized embroidery machine and thread picking method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710544956.1A CN107268211B (en) | 2017-07-06 | 2017-07-06 | Electronic cam thread picking device for computerized embroidery machine and thread picking method thereof |
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| CN107268211A CN107268211A (en) | 2017-10-20 |
| CN107268211B true CN107268211B (en) | 2023-09-22 |
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| CN201710544956.1A Active CN107268211B (en) | 2017-07-06 | 2017-07-06 | Electronic cam thread picking device for computerized embroidery machine and thread picking method thereof |
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| CN111663260A (en) * | 2020-07-07 | 2020-09-15 | 杭州美时美刻物联网科技有限公司 | Thread take-up device of computerized embroidery machine |
| CN113235242B (en) * | 2021-04-27 | 2023-03-31 | 诸暨兴大豪科技开发有限公司 | Thread cutting control method and device for embroidery equipment and equipment |
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| CN105506876A (en) * | 2015-12-31 | 2016-04-20 | 东阳市双燕设备有限公司 | High-speed towel embroidery machine head |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2850591B2 (en) * | 1991-08-30 | 1999-01-27 | ブラザー工業株式会社 | Needle bar drive of sewing machine |
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- 2017-07-06 CN CN201710544956.1A patent/CN107268211B/en active Active
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| CN101074520A (en) * | 2006-05-15 | 2007-11-21 | 东海工业缝纫机株式会社 | Multi-head embroidery sewing machine |
| CN102517809A (en) * | 2011-12-14 | 2012-06-27 | 惠州神田精密机械有限公司 | Multi-head computer embroidering machine and control system thereof |
| CN202509245U (en) * | 2012-03-26 | 2012-10-31 | 钱谷兰 | Numerical-control thread pick-up mechanism |
| CN202717958U (en) * | 2012-08-16 | 2013-02-06 | 东阳市双燕设备有限公司 | Numerical control take-up-lever embroidering machine head |
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