Abstract: This paper introduces the ceramic plate printing machine PLC control program and control program design. The control system is composed of PLC, HMI, Inverter form.
1 Introduction
As people s living standard rising, beautiful tiles on the building higher and higher demands, various kinds of color tiles gradually into the spotlight.
tiles on the suit is how to come from? This article describes the ceramic plate printing machine is to a good tile glaze printing press, through the kiln for firing into beautiful tiles on the printing machine can print 400 * 400-1000 * 1000 tiles, printed 600 * 600 tile up to 14 times per minute, and easy to adjust, change printing specifications without replacement parts, simply adjust the positioning of the travel folder bricks and control parameters can be.
2 the system and the I / O configuration
1.) Ccubqnbsp; base: to support and install all kinds of printing parts of the frame, ensuring a smooth running machine and level.
2.) Ccubqnbsp; flower truss: support fence to fence rises cleaning. For distribution networks or down to prepare the glaze printing.
3.) Ccubqnbsp; Flower Net: tile designs by making a good screen, when printing through the mesh when the glaze adhere to brick, and after firing the finished products made of brick.
4.) Ccubqnbsp; get some bricks: bricks from the delivery belt, inverter and motor constitute, for the brick will be printed into the printing machine and printing machine sent through the tile to the next process.
5.) Ccubqnbsp; Indian brick parts: the printing motor, inverter, head, blade form, print head motor driven chain drive before and after the move, while blade with forward, backward, compression, release.
6.) Ccubqnbsp; positioning cylinder: out into the brick when the brick when the electric eye detect rising delay block brick positioning.
7.) Ccubqnbsp; care Rail: When positioning the cylinder up, brick belt stops sending up care rail stop to the slow rise to tile positioning Department.
8.) Ccubqnbsp; splint: splint after the cessation of accuracy when the brick clamp brick to brick shift when printing.
9.) Ccubqnbsp; human-computer interface: Display inverter frequency, set the delay time of various movements, manual control and real-time alarm display. Input 20 points, 14 points out of I / O configuration, selected series of 40 points PLC Schneider Twido ; TWDLCAA40DRF (24 in / 16) , four lines of Chinese graphic control interface TSX08H04M. Electric motors and printing to send bricks used Schneider Inverter ATV31 series 0.75KW 1.5KW and control.
3. control requirements and procedures for design:
1) manual and automatic two working conditions are free to switch. Manually when the components are available through direct action button or adjust the human-machine interface, but more needs to move the button to lock button inside the PLC, If I1.4 hand scraper, according to the first advance under the blade, according to the second back under the blade, according to the third release under the scraper reduction; defaults to automatic mode.
0 manual, 1 is auto, and 2 semi-automatic
2) Automatic run-time in three printing modes glazed fabric printing, single printing, repeat printing.
A cloth Glaze Printing:
When the fence fell in place, printing stopped in front of the nose, into the electric eye to detect adobe brick, the delay rises positioning cylinder T0, T1 reverse printing, T2 blade back to the rear stop limit I0.1, brick into the printing left into the brick machine electric eye, the delay T3 to stop sending bricks motor Q0.4, Q0.4 stop delay T5 iron rose care, child care under the iron down along the delay detection signal T6 to make plywood clamping, after clamping extension splint when the motor is transferred printing T7, T8 scraper to move to the front limit stop, positioning the cylinder down, delay T9, T10, T11 order to release the blade, clamp release, care iron down, reset the printing prepare for the next brick.
B single printing:
Printed on both sides of a single machine can be printed in the flower, into the brick when the brick is detected when the electric eye, nose splint fixed until the brick clamping head to the other side of the limit stop operation, the reset to complete the first printing.
C continuous printing:
Even before India began only in the flower printing machine, into the brick when the brick is detected when the electric eye, nose fixed until the splint clamp brick, running nose to the other side of the limit reverse, reverse to the front scraper limit place to stop, reset to complete a print.
3) In the printing process, and sometimes stop off belt has stopped, but pushing back the glaze line adobe bricks into the electric eye to detect the brick, causing downtime, so an increase in the program storage block function, which is printed Shiyou detection to the brick signal, wait for the printing and then printed to complete reset, clear storage brick records to ensure continuous and efficient operation of printing machine.
4. Conclusion <BR> This system has the following characteristics:
1) continuous control of high precision and good stability.
2) the price is relatively reasonable.
3) The new storage block function, reduce downtime and improve efficiency.
4) PLC memory capacity, can store a large number of parameters to facilitate user-generated products of different specifications, with a simple adjustment that can switch to the production of different product lines