In mechanical and electrical products in the application of block forming machine

Pick to: this paper introduces the block machine process principle, on the basis of discussion of mechanical and electrical products of block machine automation integrated application, including HMI touch screen, programmable controller PLC controller, frequency converter products and a brief outlook of block machine industry automation development direction. Keywords: building materials brick press block machine HMI PLC controller, frequency converter 1 quote due to the rapid development of building industry, more and more demand for various types of brick artifacts. Gradually used in the construction of clay brick component raw materials, and land setback ability is very weak, the original brick support for land consume enormous; Single product model and solid red brick, is difficult to meet the application requirement of various occasions. Countries have issued documents to close all solid clay brick kilns in recent years, to be followed by a block molding brick. Combined with block shape brick on quality has obvious advantages compared with the traditional firing brick, forming speed is very fast, and it is natural drying, thus will become the mainstream of the brick industry in the future. Based on the platform of the integrated application of mechanical and electrical automation products introduction of principle block molding machine automation. Mechanical structure and working principle of block machine 2. 1 process ( FIG. 1) Figure 1 block machine process 2. 2 of the main structure block machine mainly includes four parts: the hydraulic system,; Host ( Mainly includes the body, cloth car, die, die, die, vibration box, box, etc. ) ； The brick conveyor belt; Electric control cabinet, as shown in figure 2. （ 1) The hydraulic system. Hydraulic system main function is to control the rise and fall of the die, die box, smooth because of the hydraulic pressure, the device can remain stable, won't have too big impact. Some models also with hydraulic system control vibration motor ( The oil pump motor) To replace the ordinary motor, solved the problem of the ordinary motor often burned. （ 2) The host. Host the entire frame composed of welder welding ( Figure 3) 。 Including mold manufacturing using wire-cutting processing technology, guarantee the bricks smooth without burr and size precision; For vibration motor, former customers to use ordinary motor, because of the frequent start-stop, often cause motor burn down, although after many reform, also can not solve the fundamental problem, then used the pump vibration motor, which solved the problem of the motor burned, but the disadvantages of the spill. And the use of frequency converter current limit to protect the motor, effect is obvious, but problems exist to promote the difficulty because of cost. （ 3) The brick conveyor belt ( Figure 4) 。 The main function is to send a finished brick brick part that the block machine. Sweep the role of ash motor mainly falls on the finished brick waste, clean up, so there would be no waste after dry glue on it, maintain the cleanness of bricks. Figure 4 block brick conveyor belt ( 4) The mold ( FIG. 5) 。 Mold is always a key component of various kinds of molding machinery. Block machine mould first through precise computer CAD design, and then by high precision CNC machining center as the core of machining equipment and advanced processing technology, finally, the senior engineering and technical personnel with rich experience in debugging repeatedly, get the cavity of high precision, lower die clearance uniform, has the ideal hardness and service life, create considerable economic benefits. Figure 5 block molding machine mold ( 5) The finished brick style ( Figure 6) 。 Choose different mould can produce the different requirements of brick block shape, suitable for various occasions. Raw material configuration has the strict technical requirements, including automation technology is the core issue of quantitative ratio of raw materials and homogeneous and humidity control, do not discuss in this paper. Figure 6 block molding machine finished brick 3 sets of mechanical and electrical technology based block electrical automation of electrical control adopted in DVP60ES00T ( R） Programmable controller and DOP57G ( C) STD control, human-machine interface touch screen has high stability and friendly interface, easy to operate. Each movement speed and pressure can be set on the man-machine interface, according to process flow can also display the working state of the motor and the condition of the limit switch, wrong operation tips, error protection. The machine runs two work modes: manual and automatic. In the automatic state can set production module. Figure 7 block molding machine manual operation interface ( 1) Interlock manual operating procedures. Manual operation program interlock between each working procedure has no strict restriction relationship, can avoid damage caused by manual operation error machine, and press the wrong button people the opportunity to have the corresponding prompt. Constraint relationship is as follows: · head should be at the top, frame fell to lower, skip to move forward. , send to skip should be in the position, head to fall. , send to skip should be in the position, frame to rise. The rise of the frame in place, to send a scooter to start. Note: all the manual button for a single bond start-stop button, click on the start, press it again to stop or limit switch automatic stop. In man-machine interface manual picture there is a marked with 'test' at the touch of button, open to the bottom of the green, interlock restriction to cancel at this moment, when the button is inching mode, convenient debugging the machine. When the limit switch is close to good, be sure to close the key to restore interlock constraints, this is very important to protect the machine, close the key for the red color.
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