Pneumatic control system operation in automatic packaging equipment

There are three sets of pneumatic control systems:
The control valve in the paper library suction cup, cardboard push and vacuum control system are combined together to form a collection bank of the paper bank. The paper suction cylinder is a double cylinder. When the external air source makes the double cylinder rise to the bottom of the cardboard warehouse, the suction cup pulls vacuum, sucks the single sheet of paper from the paper store, and descends to the paper board feeding passage, and the cardboard is moved by the paper pushing cylinder to send the paper board to the paper feed rack On the device.
The packing mechanism is combined with the control valves in the preserving device system to form a collection valve assembly block. Packing cylinder action, packing arrangement plate moves position, the container falls on a cardboard that has been brought to position, when the packing cylinder is about to act, the protective bottle cylinder moves, and the packing mechanism is input into the seat without boxing The grouping container is compacted so that it cannot move.
The top cover of the carton is folded, pressed and pressed. The upper cover presses the plastic and the side cover presses the control valves together to form a collection valve assembly block. The cartons are to be folded and pressed after the spraying, and the cartons are pressed to compress the mechanism (including upper cover press and side press emergency). The mechanical devices in these parts can be adjusted so that the cylinder stroke is fixed. Can also change the position of the folder and the compaction lever to meet the needs of the changed objects.
Automatic integration of light, gas, machine and electricity in the electrical system full-automatic cardboard box packaging machine requires rapid response and accurate execution of electrical control. With close cooperation, so the electrical operating system selects Siemens S5-115U programmable logic controller control, with the cam program controller, photoelectric switch, electromagnetic switch, etc., To make the control simple and efficient, reliable operation, easy adjustment. The system is known for its ruggedness and performance. Its S5-115U programmable controller is one of the best, faster, about 1 8ms per 1K statement execution time; modular design, quick installation, flexible and convenient operation; its expansion and communication capabilities are strong and simple, you can With the upper computer network, unified monitoring and management, wells can carry out error diagnosis and instructions, easy to use.
The machine's hardware configuration includes the PS951 power module, CPU module (10 RAM), two 32-point input modules, and two 32-output modules. In addition to a monitoring and operation unit, the unit OP393 is set to pass the product type and speed. It is easy to modify the settings of some time parameters of the user in the PLC in order to achieve different spray time and speed. Its user program is solidified in the EPROM subroutine board (8K). Even without a battery, the program will not be lost.
User programming using STEP5 language, available control system flowchart (CSF), statement table (STL), ladder diagram (LAD) prepared for computer, easy to write and read, and the program structure is optimized and more standardized. The machine's 11 actions and motor control are programmed in program blocks (PB). Marked interrupts are written in function blocks (FBs), data is placed in data blocks (DBs), and organization blocks (QBs) are called to handle them collectively. User program meter 2. Lk, taking a glue spraying program as an example, compiling it in program block PB6, and calling it by organization block OB1. The program is written in the flow chart as follows:
I2.4 is the cam program switch input signal, F3.7 and F4.0 flag registers 10.O and IO.7 are the condition control inputs and the glue solenoid valve is controlled with output Q14.7. The timer T15, T16 loads the corresponding data word of the data block dbl01 (input by the organization block OB1) as the preset value, this Xiang, through the OP393 changes the DB101 data word DWl5, the DWl6 value, may control the glue spray solenoid valve The state of the action, thus achieving different packaging and speed.
The machine's protection and indication function is very strong, high degree of automation, easy operation. Can carry out automatic and manual operation, manual, each action can be individually performed and check the adjustment, and use the digital tube to 0-A and indicator light to operate, and monitor the machine status, report the operator in the form of light, when chasing Call the police.
The glue spraying system consists of a hot melt device, a spray hose and a spray head. The hot melt melts the solid hot melt glue into a liquid. The liquid glue is sprayed onto the top cover and the side cover through the spray hose and the spray gun to make the side of the carton and Top sealed. (to be continued)