Stretch film
packaging machine stored program control device.
Stretch film
packaging machine is one kind of commonly used of food packaging automatic vacuum packaging machine, it has a high working capacity, bring the convenience of automated production in large quantities for the enterprise, stretch film packaging machine USES computer technology, though it to remove the data processing function of computer, but its structure and computer, basically have the following three parts.
a, intermediate processing plant
stretch film packaging machine stored program control device.
Stretch film vacuum packaging machine is stored program, and the input signal for a variety of judgment and control logic machine dedicated computer.
2, external devices
stretch film packaging machine stored program control device.
Stretch film vacuum packaging machine is take in site each testing point of the signal and the input/output operation results out of the parts.
Including switch input channel of x and y switch quantity output channel.
Can choose the time unit of t and z intermediate variable storage and peripheral equipment to deal with.
3, program input/out device
stretch film packaging machine stored program control device.
It is compiled and input program for intermediate processing plant equipment, of course, you can monitor program execution, usually just a keyboard.
But in order to improve the speed of input program, also can choose photoelectric input machine or cable head machine as well as the method of cassette machine, printer, etc.
the basic principle of program control device can be briefly as follows:
stretch film packaging machine stored program control device.
First of all by the program counter (
PC)
To main memory to provide an instruction address, and then beat control electric hair a starting main memory signal, the contents of main memory is read, retained within the data register.
stretch film packaging machine stored program control device.
Opcode distribute to control electrical appliances in the instruction register, after instruction decode indicate what kind of operation should be performed.
If the translation is related to the external device of instruction, the instruction is given after several variables of the code (
What is decision variables)
And variable address code, through the switch quantity input/out of the bus to the external didn't prepare, then put the selected variable address after input/out of the bus to the content of the logic unit of logic, or put the logic operations of the plug in to the selected variables if the translation is the transfer instruction (
Or + 1)
After, the instruction of several main memory address.
stretch film packaging machine stored program control device.
After you have an instruction execution, the program counter plus 1 content, or send the address part of transfer instruction to PC, so as to get to the next operation.
Programmable device that is in turn read and execute the main storage device for the stored procedure.
Program stored in main memory, is in the offline (
The machine production control)
State, through the keyboard or tape reading device and input to the main memory.
the above through the stretch film packaging machine the composition and working principle of stored program control device makes a detailed introduction, this is in the choice of the stretch film packaging machine and maintenance, played a certain role in the stretch film packaging machine is also more and more involved in the food packaging field, believe in the near future, more new features, has a higher capacity of stretch film packaging machine will appear in front of us!
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weigher machine weigher are primarily used for
multihead weigher.
