It is used for the input and output of various digital signals, and combined with the corresponding software, it can also realize the I/O interface circuit of the built-in type PLC processing function in the numerical control system. Through this lower computer interface board, students can have a preliminary understanding of the concept of open CNC system, and have an intuitive understanding of the composition principle and signal flow of CNC machine tools.
Experimental console The experimental console includes the main operational functions of the general CNC machine tool, as well as the display of some main status signals inside the CNC machine tool. It is equivalent to displaying all the internal information of the CNC machine tool, which is convenient for students in the experiment and verification principle. The correctness of the observations during the process. In addition to the two panels, it also contains DC power supply, stepper motor drive, displacement sensor signal processing, manual pulse generator signal processing, spindle control, display signal drive and various shaping circuits. Among them, the experimental console panel mainly displays the coordinate axis position information and other switch states and the input of various switch signals. The experimental operation board 2 is equivalent to the CNC machine operation panel. It is mainly used to input various operation commands of the CNC machine, including power switch, manual control spindle control, manual pulse generator (MPG) input, working mode setting, and feed. Signal setting and emergency stop control.
Small experimental milling machine Small experimental milling machine has X, Y, Z3 coordinate axes and 1 spindle. The feed axis is driven by stepper motor. The spindle is driven by DC motor, and linear displacement sensors are installed on each of the three coordinate axes. Used to measure the actual position of the workbench.
(Finish)
Application
a.textile industry:PVA is mainly used as a warp dressing agent, textile finishing agent and the raw material of vinylon;
b.construction :upholstery industry 107 glue, it's used as an additive of cement and mortar, inner and outer wall paints, and moulding board binder.
c.chemical industry: it's used as a polymer emulsifying agent, dispersing agent and used to produce PVA formal, PVA acetal and PVA butyral.
d.paper industry:It's used as an adhesive in lumbering and paper-making industries.
e. agriculture: used as a soil improving agent, pesticide reinforcing agent and PVOH thin film
f. used as a well-fixing agent in petroleum exploitation.
g. It can also be used into cosmetic, medicine, printing, ceramics, steel-making, electronics and plating.
PVA Resin
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