CN100537873C - A kind of linear servo control guide bar shogging system of warp knitting machine - Google Patents
A kind of linear servo control guide bar shogging system of warp knitting machine Download PDFInfo
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- CN100537873C CN100537873C CNB2007100232526A CN200710023252A CN100537873C CN 100537873 C CN100537873 C CN 100537873C CN B2007100232526 A CNB2007100232526 A CN B2007100232526A CN 200710023252 A CN200710023252 A CN 200710023252A CN 100537873 C CN100537873 C CN 100537873C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The present invention relates to a kind of textile machine, the guide bar shogging of a kind of linear servo of warp knitting machine control specifically system.The linear servo control crossing system of warp knitting machine of the present invention adopts field bus technique, system architecture is the three-level network dcs based on the CAN bus, wherein: the first order is management level, central controller is an industrial computer, is used for the school inspection and the network communication of the input of flower type, production control, pattern data; The second level is key-course, constitutes the separate type independent control unit by embedded microcontroller, be responsible for finishing receive storing IP C that send with traversing relevant floral patten parameter, and collaborative industrial computer is finished parameter verification; The third level is a field layer, comprises servo-driver, cylinder-shape linear servomotor, bindiny mechanism and frame, finishes the driving to sley bar under the command signal that key-course sends.The present invention have control accurately, the flower type changes convenient and swift, fast characteristics, can produce the various product of colored type, and greatly improve through compiling production efficiency.
Description
Technical field
The present invention relates to a kind of textile machine, the guide bar shogging of a kind of linear servo of warp knitting machine control specifically system.
Background technology
At present, the trend of engineering goods development is an electromechanical integration technology, and electromechanical integration has also become the trend that is equipped with development through setting up simultaneously.Traditional high speed warp knitting machine is many to be controlled to be the master with chain piece, floral disc, and it is restricted to the circulation of flower type, flower type structure, changes the inconvenience of flower type simultaneously.This obviously can not satisfy the demand of the fast modern society's life of many kinds, small lot, popular rhythm far away.
Domestic existing like product all is secondary control, and adopts rotary-type servomotor as driving element.Promptly be to control common rotary-type AC servo motor, by certain device the rotational action of AC servo motor be converted to laterally moving of sley bar again, finally reach the purpose that drives guide bar shogging by PLC or special control card.The common problem of these systems is: (1) owing to adopt PLC control, field control is better, but human-computer dialogue size friendly inadequately, pattern data is restricted generally, the networking of production management data and fault diagnosis lacks or the like; (2) owing to adopt rotary-type AC servo motor, decrease on the cost as driving element, still: on the one hand since its to have opened frequency lower, the warp knitting machine speed of production is restricted; Be converted into rectilinear motion owing to need certain mechanism to rotatablely move on the other hand, both reduced kinematic accuracy, reduced transmission efficiency again.
Summary of the invention
The objective of the invention is to design a kind of linear servo control guide bar shogging system of warp knitting machine, adopt field bus technique, system architecture is become three-level network dcs based on the CAN bus, have and control accurately, spend convenient and swift, the fast characteristics of type replacing, can produce the various product of colored type, and greatly improve through compiling production efficiency.
The linear servo control crossing system of warp knitting machine of the present invention adopts field bus technique, and system architecture is the three-level network dcs based on the CAN bus, wherein:
The first order is management level, and central controller is an industrial computer, is used for the school inspection and the network communication of the input of flower type, production control, pattern data;
The second level is key-course, constitutes the separate type independent control unit by embedded microcontroller, be responsible for finishing receive storing IP C that send with traversing relevant floral patten parameter, and collaborative industrial computer is finished parameter verification; Can control the transverse motion of cylinder-shape linear servomotor after the driving according to main shaft pulse signal, transverse motion enable signal, finish the traversing of distance to a declared goal, and the related output signal that utilizes grating feedback judges traversing whether in time the end, to carry out corresponding electric prospection;
The third level is a field layer, comprises servo-driver, cylinder-shape linear servomotor, bindiny mechanism and frame, finishes the driving to sley bar under the command signal that key-course sends;
Information exchange between the first order and the second level is finished by high-speed bus CAN, and the information exchange between the second level and third level driver realizes by full duplex communication.
Side (being generally the right side) in the warp knitting machine frame is installed one or more cylinder-shape linear servomotors, one end (being generally left end) of each cylinder-shape linear servomotor is its output motor shaft, connects a motion connecting rod respectively at the end (being generally left end) of each motor shaft; Each motion connecting rod connects a strut more respectively; One or more warp knitting machine sley bars are installed on the warp knitting machine frame, can move left and right; One end (being generally left end) of strut is connected with a sley bar, and the other end (being generally right-hand member) is connected with a motion connecting rod.After receiving the command signal that key-course sends, the cylinder-shape linear servomotor produces transverse movement power, and motor shaft carries out transverse motion by the motion connecting rod, passes to sley bar by strut and carries out traversing.In order to guarantee traversing accuracy and reliability, grating accurately feeds back to electronic control system with the position of cylinder-shape linear servo motor shaft, spacingly can guarantee that near switch sley bar moves in its effective coverage.
The motion connecting rod is set between motor shaft and strut, the traversing guide rod of the moving direction that is parallel to the cylinder-shape linear servomotor is installed on the motion connecting rod, this traversing guide rod is positioned at the pilot hole that is arranged on the warp knitting machine frame.Connect spring on the motion connecting rod, the other end of spring is connected with tensioning steel wire on being connected in sley bar.The grating of the displacement be used to detect motor shaft is installed on the warp knitting machine frame.On the warp knitting machine frame, be provided for limiting displacement spacing of motor shaft near switch.On sley bar, be provided for guiding mechanism that sley bar is led.
Traditional warp knitting machine adopts the mechanical type transverse-moving mechanism, by chain piece or cam as flower type carrier, the curve driving sley bar that forms by chain piece or cam outer rim carries out laterally moving, compare with common chain piece or cam transverse-moving mechanism, the electronics horizontal movement system has following characteristics: the traversing scope of (1) flower type is big, can produce bigger transverse motion; (2) save chain piece storage and maintenance, reduce the possibility of makeing mistakes; (3) it is fast to spend type to change, and directly carries out the computer input and can change colored type rapidly, thereby improve the productivity ratio of warp knitting machine greatly; (4) input cost at equipment initial stage is higher relatively.
Existing several electronics horizontal movement system controls common rotary-type AC servo motor by PLC or special control card, by certain device the rotational action of AC servo motor is converted to laterally moving of sley bar again, finally reaches the purpose that drives guide bar shogging.The present invention compares with existing these electronics horizontal movement systems, its function, effect, advantage and effect are: (1) is owing to adopt the IPC industrial computer as management control core, it is with better function, not only can carry out comprehensive real-time monitoring and management to the production of warp knitting machine effectively, and have powerful self-detectability, moreover can realize the telecommunication network communication of production management, fault diagnosis; (2) can carry out Pattern Design fast, the decorative pattern conversion is quick; (3) employing cylinder-shape linear servomotor directly drives, and does not need to be rotated to move to straight-line conversion, and mechanism driving is succinct, transmission accuracy is high; (4) adopt the cylinder-shape linear servomotor directly to drive, have higher operating frequency, make warp knitting machine speed and significantly improve that speed reaches as high as more than 1200 rev/mins than adopting the servo-controlled electronics horizontal movement of rotation system than rotary-type motor; (5) owing to adopted the control feedback of accurate grating signal, make transverse motion control location accurately as the position.
Description of drawings
Fig. 1 is the overall pie graph of warp knitting machine electronic control system.
Fig. 2 is executing agency's schematic diagram of electronics horizontal movement control system.
Fig. 3 is a fundamental diagram of the present invention.
The specific embodiment
Among Fig. 2,1 is the warp knitting machine sley bar, 2 is strut, and 3 are tensioning steel wire and spring, and 4 is spacing near switch, 5 is cylinder-shape linear servo motor shaft (mover), 6 are the motion connecting rod, and 7 is the guide bar shogging guide rod, and 8 is grating, 9 is the cylinder-shape linear servomotor, and 10 are warp knitting machine frame (being the transverse-moving mechanism mounting seat).
The present invention adopts field bus technique, and system architecture is the three-level network dcs based on the CAN bus, wherein:
The first order is management level, and central controller is industrial computer (being industrial control computer), is used for the school inspection and the network communication of the input of flower type, production control, pattern data;
The second level is key-course, constitutes the separate type independent control unit by embedded microcontroller, be responsible for finishing receive storing IP C that send with traversing relevant floral patten parameter, and collaborative industrial computer is finished parameter verification; Can control the servo transverse motion of cylinder-shape linear according to main shaft pulse signal, transverse motion enable signal after the driving, finish the traversing of distance to a declared goal, and the related output signal that utilizes grating feedback judges traversing whether in time the end, to carry out corresponding electric prospection;
The third level is a field layer, comprises servo-driver, cylinder-shape linear servomotor, bindiny mechanism and frame, finishes the driving to sley bar under the command signal that key-course sends;
Information exchange between the first order and the second level is finished by high-speed bus CAN, and the information exchange between the second level and third level driver realizes by full duplex communication.
As shown in Figure 2: the side (being generally the right side) in warp knitting machine frame 10 is installed one or more cylinder-shape linear servomotors 9, one end (being generally left end) of each cylinder-shape linear servomotor 9 is its output motor shaft 5, connects a motion connecting rod 6 respectively at the end (being generally left end) of each motor shaft 5; Each motion connecting rod 6 connects a strut 2 more respectively; One or more warp knitting machine sley bars 1 are installed on the warp knitting machine frame 10, can independent left move right separately, and an end (being generally left end) of each strut 2 is connected with a sley bar 1 respectively; The traversing guide rod 7 of the moving direction that is parallel to cylinder-shape linear servomotor 9 is installed on motion connecting rod 6, and this traversing guide rod 7 is positioned at the pilot hole that is arranged on the warp knitting machine frame 10, and traversing guide rod 7 is used for motion connecting rod 7 is led.The grating 8 of the displacement be used to detect motor shaft 5 is installed on warp knitting machine frame 10, and this grating 8 can accurately measure the displacement of motor shaft 5, and in time feeds back to electronic control system.On warp knitting machine frame 10, be provided for limiting displacement spacing of motor shaft 5 near switch 4, this near switch 4 in the end of motor shaft 5 near the time, can send signal, by electronic control system cylinder-shape linear servomotor 9 is quit work.After receiving the command signal that key-course sends, cylinder-shape linear servomotor 9 produces the transverse movement power, and its motor shaft 5 drives motion connecting rods 6 and carries out transverse motion, passes to sley bar 1 by strut 2 and carries out traversing.In order to guarantee traversing accuracy and reliability, grating 8 accurately feeds back to key-course with the position of cylinder-shape linear servo motor shaft 5, spacingly can guarantee that near switch 4 sley bar 1 moves in its effective coverage.
Connect spring 3 on motion connecting rod 6, the other end of spring 3 is connected with tensioning steel wire 11 on being connected in sley bar 1.This spring 3 is used for resetting of sley bar 1 with tensioning steel wire 11, can sley bar 1 be returned together at motor shaft 5.On warp knitting machine frame 10, be equipped with and be used for guiding mechanism that sley bar 1 is led,, can obtain good guiding so that when sley bar 1 moves.
Fig. 3 is the fundamental diagram of this system.At first will weave flower type information by input industrial computers such as floppy disk, USB deposit or direct touch-screen key entries, industrial computer passes to the motion control layer by the CAN bus after treatment then; In addition, main shaft velocity of rotation and positional information record by spindle encoder with near switch etc., also pass to the motion control layer.The motion control layer is according to main shaft information and flower type information, send movement instruction to the linear servo driver, drive sley bar 1 by cylinder-shape linear servomotor 9 and make transverse motion, the grating 8 that is installed on the cylinder-shape linear servo motor shaft 5 sends position pulse signal, deliver to the linear servo driver as motion feedback signals, this has just constituted a half-closed loop control system; Grating 8 sends position pulse signal and delivers to the Displacement Feedback signal of motion control layer as sley bar 1, and this has just constituted a closed-loop control system.
Before operation, the fabric floral patten parameter that requires is input to industrial computer by touch-screen, when machine run, motion control layer timing acquiring spindle encoder and the pulse signal that sends near switch, industrial computer is according to the main shaft umber of pulse of accumulative total, the rotating speed of machine, current line number can be calculated, the colored type sequence number of braiding and the traversing amount of this sequence can be in memory, found successively.The actual displacement amount of cylinder-shape linear servomotor 9 feeds back to the motion control layer by grating 8, deliver to industrial computer again, determine the position difference by comparing, by control program the position deviation value is compensated again, thereby guaranteed the precision of guide bar shogging position with setting value.
Need explanation a bit, cylinder-shape linear servomotor described herein is the drum type linear servo-actuator in document [1]; In document [2], be the cylinder-shape linear induction conductivity.
Name of document is as follows:
[1] Ye Yunyue chief editor, linear electric motors principle and application [M], Beijing: China Machine Press, 2000;
[2] Zhang Risheng etc., the design of High Precision Linear Motor Drive Mechanism and control [J], machining and automation, 2003,10:2-4.
Claims (6)
1, a kind of linear servo of warp knitting machine control guide bar shogging system is characterized in that, adopt field bus technique, system architecture is the three-level network dcs based on the CAN bus, wherein:
The first order is management level, and central controller is an industrial computer, is used for the school inspection and the network communication of the input of flower type, production control, pattern data;
The second level is key-course, constitutes the separate type independent control unit by embedded microcontroller, be responsible for finishing receive storing IP C that send with traversing relevant floral patten parameter, and collaborative industrial computer is finished parameter verification; Can control the transverse motion of cylinder-shape linear servomotor after the driving according to main shaft pulse signal, transverse motion enable signal, finish the traversing of distance to a declared goal, and the related output signal that utilizes grating feedback judges traversing whether in time the end, to carry out corresponding electric prospection;
The third level is a field layer, comprises servo-driver, cylinder-shape linear servomotor, bindiny mechanism and warp knitting machine frame, finishes the driving to sley bar under the command signal that key-course sends;
Information exchange between the first order and the second level is finished by high-speed bus CAN, and the information exchange between the second level and third level driver realizes by full duplex communication.
2, the linear servo of warp knitting machine is controlled the guide bar shogging system according to claim 1, it is characterized in that: one or more cylinder-shape linear servomotors (9) are installed in a side of warp knitting machine frame (10), one end of each cylinder-shape linear servomotor (9) is its output motor shaft (5), connects a motion connecting rod (6) respectively at the end of each motor shaft (5); End at each motion connecting rod (6) connects a strut (2) more respectively; One or more warp knitting machine sley bars (1) are installed on the warp knitting machine frame (10), can independent left move right separately, and an end of each strut (2) is connected with a sley bar (1) respectively; After receiving the command signal that key-course sends, cylinder-shape linear servomotor (9) produces transverse movement power, and motor shaft (5) carries out transverse motion by motion connecting rod (6), passes to sley bar (1) by strut (2) and carries out traversing; In order to guarantee traversing accuracy and reliability, grating (8) accurately feeds back to electronic control system with the position of motor shaft (5), spacingly can guarantee that near switch (4) sley bar moves in its effective coverage.
3, as the linear servo control guide bar shogging system of warp knitting machine as described in the claim 2, it is characterized in that: described motion connecting rod (6) is arranged between motor shaft (5) and the strut (2), go up the traversing guide rod (7) that the moving direction that is parallel to cylinder-shape linear servomotor (9) is installed at motion connecting rod (6), this traversing guide rod (7) is positioned at the pilot hole that is arranged on the warp knitting machine frame (10).
4, as the linear servo control guide bar shogging system of warp knitting machine as described in the claim 2, it is characterized in that: go up at motion connecting rod (6) and connect spring (3), the other end of spring (3) is connected with tensioning steel wire (11) on being connected in sley bar (1).
5, as the linear servo control guide bar shogging system of warp knitting machine as described in the claim 2, it is characterized in that: described grating (8) is installed on the warp knitting machine frame (10), and described grating (8) is used to detect the displacement of motor shaft (5).
6, as the linear servo control guide bar shogging system of warp knitting machine as described in the claim 2, it is characterized in that: described spacingly be arranged on the warp knitting machine frame (10) near switch (4) describedly spacingly is used to limit the displacement of motor shaft (5) near switch (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100232526A CN100537873C (en) | 2007-06-11 | 2007-06-11 | A kind of linear servo control guide bar shogging system of warp knitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100232526A CN100537873C (en) | 2007-06-11 | 2007-06-11 | A kind of linear servo control guide bar shogging system of warp knitting machine |
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| CN101086104A CN101086104A (en) | 2007-12-12 |
| CN100537873C true CN100537873C (en) | 2009-09-09 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101487168B (en) * | 2009-02-20 | 2011-05-25 | 江南大学 | Guide bar sliding control system for high-speed warp knitting machine |
| CN102493121B (en) * | 2011-11-30 | 2013-07-31 | 常州市步云工控自动化有限公司 | System special for controlling transverse movement of guide bars of high-speed warp knitting machine |
| CN104452087A (en) * | 2014-12-02 | 2015-03-25 | 江南大学 | Electronic guide bar traversing device of multi-bar warp knitting machine |
| CN106054793A (en) * | 2016-06-17 | 2016-10-26 | 江南大学 | Pattern progress tracking and controlling device and controlling method for warp knitting machine |
| CN106048879A (en) * | 2016-07-19 | 2016-10-26 | 柳州六品科技有限公司 | Control system for warp knitting machine |
| CN108560130B (en) * | 2018-04-08 | 2019-08-13 | 江南大学 | Double rib warp loom electronics horizontal movement compensating control method |
| CN114232182A (en) * | 2021-12-28 | 2022-03-25 | 中国科学院宁波材料技术与工程研究所 | Three-dimensional loom control system based on PC and weaving method |
| CN114859791A (en) * | 2022-05-20 | 2022-08-05 | 常州市赛嘉机械有限公司 | Ultra-large loom wide lattice spacing control system and control method thereof |
-
2007
- 2007-06-11 CN CNB2007100232526A patent/CN100537873C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 现场总线与数字化纺织生产框架体系研究. 陈毓婷，杨建国，吕志军.纺织导报，第1期. 2006 |
| 现场总线与数字化纺织生产框架体系研究. 陈毓婷，杨建国，吕志军.纺织导报，第1期. 2006 * |
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