The rubber preforming machine is a high-precision and high-efficiency rubber blank making equipment, which can produce various medium and high hardness, various shapes of blanks, and the blanks have high precision and no bubbles. It is suitable for the production of miscellaneous rubber parts and oil seals. , O-rings, tennis balls, golf balls, valves, shoe soles, auto parts, medicine, agricultural granulation and other products.
Rubber preforming is a plunger type machine, which is mainly composed of extrusion device, hydraulic system, vacuum system, water circulation system, electric heating system, pneumatic system, cutting system and electric control system:
1. Hydraulic device: select high-pressure gear pump and flow valve. The hydraulic oil of the hydraulic cylinder is controlled by the flow valve. The differential pressure valve before and after throttling is always controlled at a constant value to ensure accurate control of the weight of the extruded rubber blank.
2. The electronic scale feedback system is used for communication control, and the knife speed is automatically adjusted to make the cut rubber blank reach the required weight.
3. Vacuum system: Before extruding and cutting the rubber material, vacuumize it to remove the air inside the barrel and die and the gas contained in the rubber material, so as to improve the quality of the vulcanized products in the next process.
4. Extrusion device: It is composed of hydraulic cylinder, barrel, head, etc.
5. Cutting device: It is composed of frame, motor and deceleration system. The cutting motor adopts a frequency converter to achieve stepless speed regulation, and a transmission device is installed in the lower part of the frame.
6. Using high-definition LCD touch screen and PLC to achieve fully automatic control operation.
7. Heating system: adopts water circulation heating method, and the temperature is controlled and displayed by a digital thermostat. 8. Pneumatic device: used to control the opening and closing of the head.