In view of the shortcomings of the traditional production process of mixed color products, the existing production process is designed. Plastic products contain two or more different materials and colors of plastic, require two sets of tables or more than one set of injection systems to work together. Through the time control parameters mainly include injection time, pressure holding time, cooling time, drying time for the material and the whole injection molding cycle. In the whole molding cycle, injection, pressure holding, cooling, and opening and stripping time account for the main part, the setting of the length of the molding cycle time is required to shorten as much as possible under the premise of ensuring the quality of the product. The injection and pressure holding time is related to the injection pressure, injection speed and back pressure, etc. When setting, the mixed two-color injection molding machine should find the shortest time under the premise of ensuring the quality of the product. When setting the cooling time, the product, temperature and polymer properties should be taken into account, and the pressure holding and screw metering stage are included in the cooling time, so the screw metering time should be controlled in the minimum cooling time required by the product.

The value of the thermoelectric potential is not related to the length and diameter of the thermal electrode, but only to the composition of the thermal electrode material and the temperature at both ends. The temperature control of the barrel temperature, nozzle temperature and oil temperature of the injection machine needs to be measured by thermocouple before temperature control. The actuator used by the injection molding machine is: nozzle seat, heating seat, motor, contactor, alarm light, buzzer, etc. The electrical appliances of the logic judgment and command formation system have various controllers, displays, keys, dip switches, power supplies, etc.

Other systems of electrical fast fuses, transformers, wires, coolers, ammeters, etc. 3. Control of injection speed and pressure Injection speed control of the injection molding machine has two meanings: first, open loop or closed loop control of the speed of the screw propulsion material; The second is to switch the position and speed value of the screw propulsion speed in multiple stages at the same time, which is called multi-stage injection speed switching or control. Similarly, the injection pressure control of the injection molding machine also contains these two meanings: first, the pressure of the screw propulsion material is open or closed cycle control; The second is to switch the position and speed of the screw pushing pressure in multiple stages at the same time.

Weigh a lot.

Injection speed switch or control