Do you understand the drive of multi-station thermoforming machine?

Plastic blister machine, also known as plastic thermoforming machine, is the thermoPlastic Sheet heated plasticized PVC, PE, PP, PET, HIPS and other thermoplastic sheet sucked into various shapes of packaging boxes, frames and other products of the machine.

The plastic thermoforming machine integrates the functions of forming, punching, cutting, stacking and discharging in one, which has a higher demand for high-speed and automated production.

The multi-station thermoforming machine adopts the solution of touch screen + programmable controller + servo, and the servo drive motor is controlled by PLC through CanOpen bus to achieve smooth operation, low noise and high efficiency.

1. Overall process

• Heating station up and down the electric furnace, Modbus communication control temperature controller PID control temperature, to achieve high precision heating.
• Molding station servo control molding up and down guide plate and drawing plate, with blow valve, vacuum valve, blowback valve to play a plastic molding role, is the core part of the machine.
• Punching station servo control punching upper and lower guide plate, with the waste valve to play the role of punching and removing punching waste.
• Cutting station servo control cutting upper and lower guide plate and cutting knife, to cut corners, product waste separation. 05 Stacking station servo control push material, clamping, up and down, front and back, rotation of five mechanical parts, to achieve four different ways of finished product stacking and conveying actions.

2. Specific plan

Depends on the control demand, motor response speed and work efficiency. Choose programmable controller, CanOpen bus control servo mode control equipment operation, convenient customer on-site installation and debugging.
ModebusTCP communication has the advantages of high-speed communication and easy wiring, so it uses a touch screen with TCP network port.

3. Advantages

•  High-speed production and efficiency improvement multi-station thermoforming machine, for a certain material and mold per minute maximum production capacity of about 32 times, now in a molding cycle division and calculation of each step of the time, the molding and drawing conveying action to optimize the connection, to achieve the limit to improve efficiency, and increase the heating temperature to reduce heating time, under the premise of qualified finished products, It can reach more than 45 beats per minute.
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  Automatic adjustment of the station for different length of the drawing, the distance of the station can be automatically adjusted, input the actual drawing length or formula function to read the drawing length of the system will automatically calculate the distance between the stations. In the case of no fine tuning, ensure that the position of the die cutter is consistent, and the stacking station is accurately aligned.
• Bus control response speed This scheme adopts bus control, which greatly improves the response speed compared with the traditional communication mode, and simplifies the connection for the convenience of customers.
• Touch screen formula function simple operation Touch screen program function is powerful, similar to wechat interaction interface is simple to understand, easy to operate, formula function, easy to call, formula data can be imported and exported, simplify the workload, forming parameters are set with a timeline navigation chart, to avoid the impact caused by improper time setting.