CN102267284A - Control system for rotary screen printing machines - Google Patents
Control system for rotary screen printing machines Download PDFInfo
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- CN102267284A CN102267284A CN2010101911850A CN201010191185A CN102267284A CN 102267284 A CN102267284 A CN 102267284A CN 2010101911850 A CN2010101911850 A CN 2010101911850A CN 201010191185 A CN201010191185 A CN 201010191185A CN 102267284 A CN102267284 A CN 102267284A
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Abstract
The invention discloses a control system for rotary screen printing machines, which comprises a main controller, an electrical control module, a rotary-screen synchronous control module and a multi-path screen head control unit, wherein the main controller is the core of the whole control system, and used for coordinating the operations of the electrical control module, the rotary-screen synchronous control module and the screen head control unit, receiving and processing data sent from each module, and realizing the mutual cooperation and coordination of the modules, therefore, the main controller is the 'brain' and 'nerve center' of the control system of a whole printing machine. The control system disclosed by the invention adopts a dual-bus structure, therefore, the stability and response speed of system control of the rotary screen printing machine are improved. By using the control system disclosed by the invention, the problem of retaining the precise synchronization performance and efficient automatic registering performance of the ascending and descending speeds of the rotary screen printing machine in the processes of printing and dyeing can be solved, the accidents of fabric breaking, network disconnection, and 'pattern error' can be completely eradicated, and the production efficiency and product quality of equipment can be improved.
Description
Technical field
The present invention relates generally to the printing equipment that is used for the textile routine, particularly the control system of circular screen printer.
Background technology
Circular screen printer is by entering cloth unit, printing cell, drying room unit and go out devices such as cloth unit to form.Enter the cloth unit and be transported in the machine, and carry out preliminary treatment for grey cloth that will be to be printed and dyed.Printing cell is the core institution of circular screen printer, by the cylinder that is carved with pattern design the slurry of various chromatographys is imprinted on the grey cloth.Its operation principle is that conduction band drives the cloth motion, and cylinder keeps the synchronous rotation with cloth, when cylinder contacts with cloth, slurry is printed and dyed on the cloth by the style pattern, and each cylinder prints a kind of color.The drying room unit is the cloth flash baking that just is printed on pattern.Go out the cloth unit and transfer out machine for the finished product cloth after will drying.
Entering the cloth unit and include devices such as tight cloth device, edge guide, dust catcher, drive roll, degree of tightness frame, adjuster, edge spreader, opposite side device, is first unit of cylinder.When cloth involves in cloth, its swing type is drawn cloth rewinder roll and be pressed on the yardage roll, stretched, inhale preliminary treatment prognosis such as limit, dedusting, preheating, rely on and draw cloth rewinder roll turning handle cloth and import printing cell.Entering arrangment principal security fabric advance Bu Shibu smooth, clean, and be in when making fabric advance cloth on low-tension and the door width of cloth tram.
Printing cell mainly contains cylinder, net head unit, seal is scraped device, transmission device, flower system, water washing device, tape guide roller Weft handling device, sizer and degumming device are formed.Described cylinder is the pattern design that is carved with hollow out, nickel screen cylindraceous.The course of work of printing cell is such: be passed on the conduction band through advancing the pretreated grey cloth in cloth unit, because the conduction band surface scribbles one deck glue special in advance, make grey cloth to contact with conduction band closely, can not produce relative motion, the grey cloth that closely contacts with conduction band is along with the motion of conduction band, successively by each cylinder, cylinder keep with
Conduction bandSynchronous rotation, when cylinder contacted with cloth, the pattern design hole by hollow out was penetrated into slurry on the cloth, each cylinder prints a kind of color, a plurality of cylinders are worked simultaneously and have been formed multiple chromatography.Problems such as, dislocation overlapping for fear of occurring between the style of each color, fracture must keep everywhere between the cylinder and cylinder, being synchronized with the movement between cylinder and the conduction band.The synchronous numerical control unit of cylinder is exactly the transmission device by each cylinder of motor-driven, makes each cylinder keep the consistent of displacement and speed.
The ROTARY SCREAM PRINTING unit comprises some servicing units, as cylinder fixture, lifting apparatus, pressure-regulating device, confession oar device, in order to eliminate the alignment error and the Synchronization Control error of machinery, also comprises horizontal, oblique, vertical, height compensation device simultaneously.These functions are finished by a net control module of each net head unit, on the net control module guidance panel and display board are arranged, but direct control.
The drying room unit is a cloth through after the printing cell printing, must do the oven dry processing through drying room at once.The drying of drying room partly is generally the air-cushion type airflow dryer, and the turnover of employing hot-air circulates and dries calico, is applicable to contactless drying, is subjected to overtension for avoiding fabric, and terylene mesh commonly used carries conduction band to deliver fabric.
The cloth that goes out the cloth unit and be printed pattern is through just transferring out circular screen printer by going out the cloth unit after the oven dry.Cloth discharge device can adopt open width to fold out cloth or clot cloth discharge device.
In traditional circular screen printer control system, referring to Fig. 1, generally use PLC as master controller, with HMI human-computer interaction interface, drive cloth unit, drying room unit and go out the cloth unit by the I/O mouth of PLC is direct.PLC directly receives the synchronizing signal that detects synchronously encoder, and directly by High Speed I/O mouth control net motor, PLC controls operation panel on each net head by the I/O mouth simultaneously, realizes the control to a net servicing unit according to synchronizing signal.The framework of whole system is simple, direct, and stability better, and is low to the control technology requirement, and exploitation simply.But shortcoming is also very outstanding, and major defect is:
1, the kind of field wiring complexity, cable and quantity are all more.
2, the control cycle of PLC is oversize, and is slower to the response of synchronizing signal, and the synchronism of net head is bad, particularly in the process of lifting speed, runs flower easily, causes lifting speed process percent defective height.
3, control system is open loop control to a net motor, can't eliminate the composition error of being brought by motor (alternating current generator, stepper motor, servomotor) or motor driver (frequency converter, stepper motor driver, motor servo driver etc.).
4, because communicating to connect of net an operation panel and PLC master controller is too simple, make that the function of a net operation panel is fairly simple, can't the complicated technological process operation of reality, there is not the interchangeability of control.
Summary of the invention
The objective of the invention is at problems of the prior art, a kind of control system of circular screen printer is provided.
In order to reach described purpose, the invention provides a kind of control system of circular screen printer, comprise master controller, electrical control module, cylinder synchronization control module and multi path network head control module; Master controller by the electrical control module to entering the cloth unit, drying room unit and go out the cloth unit and control, master controller carries out Synchronization Control according to detecting code device signal synchronously to a net motor by the cylinder synchronization module, master controller is by a net control module controlling each device of net head, it is characterized in that, described electrical control module is entered the cloth unit for the I/O card control, drying room unit and go out the cloth unit, described cylinder synchronization control module also comprises the synchronous numerical control unit of cylinder and first bus, master controller is to the synchronous numerical control unit transmission of this cylinder work order, the synchronous numerical control unit of cylinder passes through first total line traffic control net head motor according to detecting code device signal synchronously after receiving work order, a described net control module also comprises the multi path network head control module and second bus, bus interface card integrated in the master controller transmits control instruction by second bus to multi path network head control module, passes through each device of second total line traffic control net head after the net control module reception control instruction.
Further being characterized as described first bus is 100M network control bus, and described second bus is the CAN-BUS bus.
Further be characterized as a described net control module and detect the state of netting head, send to master controller by second bus again by the sensor on each device that is arranged on the net head.
The synchronous numerical control unit of described cylinder is by control driven by servomotor module controls net head motor, and described synchronous detection encoder is installed on the master roller that drives the conduction band operation.
Described synchronous detection encoder is installed on the roller that drives grey cloth, and what integrated Soft PLC control I/O mouth driver card was controlled in the described master controller enters cloth unit, drying room unit and go out the cloth unit.
Described Soft PLC is to be a kind of control software of the style of opening based on PC.When it realizes the PLC functions such as collection, monitoring of data by software, also having increased the advantage that PLC such as the PC capacity is big, processing speed is fast, the network interconnection is convenient do not possess, is the crystallization of PC technology and PLC technology.The data that Soft PLC is powerful with computer are handled and networking capability, friendly user interface and high reliability, strong anti-interference ability, the combination of programmed environment and conventional P LC is flexible, trouble shoot is convenient etc. that characteristics combine, the mode by software realizes PID control, the discrete function of controlling and simulating PLC such as control.In native system, formed efficient, a stable Soft PLC platform with the pattern of industrial computer+Soft PLC software kit+I/O card.
Advantage of the present invention is:
1: the network control bus and the high-performance processor that adopt 100M, make control cycle be less than 300us, system responses is in 500us, the response speed height, make that the synchronism of net head is good, can reach the higher speed of service, can enhance productivity, and significantly reduce because the loss that " running flower " brings particularly can reduce the percent defective in the lifting speed process.
2: adopt network type wiring form, the cable series connection of the LAN interface that each net head only must two standards, on-the-spot Installation and Debugging are simple and convenient, reliable, reduce cost, and are easy to maintenance.
3: each device of net head is connected by CAN-BUS with industrial computer, can make a net control module more tight with communicating by letter of industrial computer, realizes more more complicated functions on the net head, and is user-friendly, improved production efficiency.
4: because 100M express network bus is a kind of bidirectional bus, the driven by servomotor module can feed back to the position of motor, rate signal in the industrial computer in real time, realizes closed-loop control, eliminates the accumulated error that a variety of causes causes, and improves synchronization accuracy greatly.
Description of drawings
Fig. 1 is the control system structured flowchart of traditional round screen printing machine.
Fig. 2 is a control system structured flowchart of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 2, a kind of control system of circular screen printer comprises master controller, electrical control module, cylinder synchronization control module and a net control module.Master controller is industrial computer or has the module of identical function, is to be hardware platform with industrial computer 1 among the present invention, is software platform with RT Liunx operating system.The fast operation of industrial computer, disposal ability is strong, and hardware configuration is abundant, and extended capability is strong, is the desirable hardware platform of circular screen printer control system.The real-time of RT Liunx operating system good (can reach 1ms), stability is strong, and man-machine interface close friend is widely used in the industry control industry.Industrial computer is that whole system " nerve center " is responsible for reception, handles data, the instruction of each unit, and shows in display.Receive user's operational order simultaneously, send to each control module according to the characteristic of instructing.On the whole, industrial computer receives only, transmits various data and instructions, and various instructions are processed, but does not directly control each unit machine of circular screen printer, and machine is still finished by each control module.
Described master controller is the core of The whole control system, analysis-by-synthesis, handles above-mentioned module, and realize between the above-mentioned module transfer of data with share.
The operation principle of the control system of circular screen printer is as follows:
Each is different for the characteristic of each machine assembly of circular screen printer, and is also different to the requirement of control system.Enter cloth unit, drying room unit in the electrical control module 4, go out cloth unit requirement control system and have higher reliability, stability and stronger antijamming capability, and to real-time and control accuracy require relatively low.Adopted industrial computer 1 integrated Soft PLC9 to drive the control model of each machine assembly by I/O card 10 according to its feature.And each cylinder to the synchronism of motion control, in real time the time, accuracy requirement is high, the cylinder synchronization control module 2 of printing cell must have the high speed of response, guarantee the precision of control, must realize each net motor of parallel drive by first bus (100M Ethernet bus) 12 at a high speed; A net control module 3 comprises multi path network head controlling device and a net control module 8, be used for reality to net a fixture, lowering or hoisting gear, scraer printing system, to the control of embossing device, slurry feeding device etc., the real-time of its requirement is higher than the electrical control module but is lower than synchronization control module, be incorporated into cost and efficient and consider, second bus (CAN-BUS bus) 13 is applicable to the transfer of data that realizes many each devices of net head.
Electrical control module 4 is entered cloth unit, drying room unit and is gone out cloth unit 11 by 10 controls of I/O card for industrial computer 1, integrated Soft PLC 9 functions in industrial computer 1, promptly operating software is realized the function of conventional P LC processor in industrial computer 1, and pass through local bus PCI to I/O driver card transfer instruction, I/O driver card 10 receives the instruction back just can control the work that circular screen printer enters cloth unit, drying room unit or goes out each machine assemblies such as cloth unit 11 according to instruction.
A net control module is a bus interface card 14 integrated in the industrial computer 1, by second bus 13 to a net control module 8 transfer instructions, second bus herein is the CAN-BUS bus, and a net control module 8 receives the fixture of instruction back by second bus, 13 control net heads, lowering or hoisting gear, scraer printing system, to each devices such as embossing device and slurry feeding devices.A net control module is a primary processor with 16 MCU of high-performance, the operational order of process user and the data command of industrial computer, and detect the state of each device of net by sensor, be that the CAN-BUS bus sends to industrial computer by second bus 13 again.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and the claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (7)
1. the control system of a circular screen printer comprises master controller, electrical control module, cylinder synchronization control module and multi path network head control module; Master controller by the electrical control module to entering the cloth unit, drying room unit and go out the cloth unit and control, master controller carries out Synchronization Control according to detecting code device signal synchronously to a net motor by the cylinder synchronization module, master controller is by a net control module controlling each device of net head, it is characterized in that, described electrical control module is entered the cloth unit for the I/O card control, drying room unit and go out the cloth unit, described cylinder synchronization control module also comprises the synchronous numerical control unit of cylinder and first bus, master controller is to the synchronous numerical control unit transmission of this cylinder work order, the synchronous numerical control unit of cylinder passes through first total line traffic control net head motor according to detecting code device signal synchronously after receiving work order, a described net control module also comprises the multi path network head control module and second bus, bus interface card integrated in the master controller transmits control instruction by second bus to multi path network head control module, passes through each device of second total line traffic control net head after the net control module reception control instruction.
2. the control system of a kind of circular screen printer according to claim 1 is characterized in that, described first bus is a 100M network control bus at a high speed.
3. the control system of a kind of circular screen printer according to claim 1 is characterized in that, described second bus is the CAN-BUS bus.
4. the control system of a kind of circular screen printer according to claim 1 is characterized in that, a described net control module detects the state of netting head by the sensor on each device that is arranged on the net head, sends to master controller by second bus again.
5. the control system of a kind of circular screen printer according to claim 1 is characterized in that, the synchronous numerical control unit of described cylinder is by control driven by servomotor module controls net head motor.
6. the control system of a kind of circular screen printer according to claim 1 is characterized in that, described synchronous detection encoder is installed on the master roller that drives the conduction band operation.
7. the control system of a kind of circular screen printer according to claim 1 is characterized in that, what integrated Soft PLC control I/O mouth driver card was controlled in the described master controller enters cloth unit, drying room unit and go out the cloth unit.
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| CN201010191185.0A CN102267284B (en) | 2010-06-03 | 2010-06-03 | Control system for rotary screen printing machines |
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| CN201010191185.0A CN102267284B (en) | 2010-06-03 | 2010-06-03 | Control system for rotary screen printing machines |
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| CN102267284B CN102267284B (en) | 2015-06-03 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103029421A (en) * | 2013-01-04 | 2013-04-10 | 宁波西田信染织有限公司 | Flat screen printing machine |
| CN103640332A (en) * | 2013-11-29 | 2014-03-19 | 中达电通股份有限公司 | Control system and method for rotary screen printing |
| CN104589789A (en) * | 2014-12-31 | 2015-05-06 | 中达电通股份有限公司 | Fabric printing machine and printing method |
| CN106773987A (en) * | 2016-12-30 | 2017-05-31 | 马鞍山市威利坚机械科技有限公司 | A kind of shearing machine intelligence control system |
| CN108334007A (en) * | 2018-04-13 | 2018-07-27 | 上海态镀贸易有限公司 | It is a kind of can the wireless drive displacements of WIFI web plate control system and its application |
| CN108845490A (en) * | 2018-06-23 | 2018-11-20 | 广东希望高科数字技术有限公司 | A kind of identical tension of Tension Adjustable, which synchronizes, unreels control system |
| CN111427338A (en) * | 2020-05-12 | 2020-07-17 | 胡群超 | Simple intelligent control system |
| CN113733718A (en) * | 2021-09-02 | 2021-12-03 | 江苏海宏智能科技有限公司 | High-speed gravure direct printing machine |
| US11235566B2 (en) | 2017-06-28 | 2022-02-01 | Newtech Textile Technology Development (Shanghai) Co., Ltd | Rotary screen transfer printing machine and control system |
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| CN104589789A (en) * | 2014-12-31 | 2015-05-06 | 中达电通股份有限公司 | Fabric printing machine and printing method |
| CN106773987A (en) * | 2016-12-30 | 2017-05-31 | 马鞍山市威利坚机械科技有限公司 | A kind of shearing machine intelligence control system |
| US11235566B2 (en) | 2017-06-28 | 2022-02-01 | Newtech Textile Technology Development (Shanghai) Co., Ltd | Rotary screen transfer printing machine and control system |
| CN108334007A (en) * | 2018-04-13 | 2018-07-27 | 上海态镀贸易有限公司 | It is a kind of can the wireless drive displacements of WIFI web plate control system and its application |
| CN108845490A (en) * | 2018-06-23 | 2018-11-20 | 广东希望高科数字技术有限公司 | A kind of identical tension of Tension Adjustable, which synchronizes, unreels control system |
| CN111427338A (en) * | 2020-05-12 | 2020-07-17 | 胡群超 | Simple intelligent control system |
| CN113733718A (en) * | 2021-09-02 | 2021-12-03 | 江苏海宏智能科技有限公司 | High-speed gravure direct printing machine |
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Effective date of registration: 20180411 Address after: 201906 room 1416, 6 A building, 8885 Hu Tai Road, Baoshan District, Shanghai. Patentee after: Shanghai dry Intelligence Technology Co., Ltd. Address before: 201717 room 2307, 6188 Zhu Feng Road, Qingpu, Shanghai. Patentee before: Shanghai Hitech System Works Co., Ltd. |
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