Injecting vacuum molding machine direct drive motor driving and plasticizing apparatus

Abstract

The invention relates to an injecting vacuum molding machine direct drive motor driving and plasticizing apparatus, which comprises a plasticizing material cylinder of an injecting vacuum molding machine, a nozzle seat is arranged at a head of the plasticizing material cylinder, a spray orifice is arranged in the nozzle seat, a turn-off mechanism is arranged on the nozzle seat, a screw is arranged in the plasticizing material cylinder, the screw is driven by a direct drive apparatus, the direct drive apparatus comprises a direct drive motor arranged on an injection table back plate, a coupling is arranged in the injection table back plate, an output shaft of the direct drive apparatus is connected to the tail end of the coupling, a front of the coupling is connected to the screw, the turn-off mechanism comprises a pin arranged in the nozzle seat, a through hole is provided in the pin, the through hole and the spray orifice are connected, one end of the pin is connected to a turn-off oil cylinder, the limited rods are provided at two sides of the other end of the pin, and the limited rod is connected to the nozzle seat. According to the invention, a scheme of the invention can greatly reduce the energy loss, even the apparatus is in an opening / clamping state, the plasticizing motion can be carried out, the moulding period can be shortened, the production efficiency is increased, and the degree of freedom for debugging the plastic injection blow molding technology can be increased.

Description

technical field [0001] The invention relates to a plasticizing device driven by a direct drive motor of an injection blow hollow molding machine, which belongs to the field of plastic machinery. Background technique [0002] At present, the plasticizing devices commonly used in plastic injection blow molding machines are all driven by hydraulic pressure. The hydraulically driven plasticizing device converts electrical energy into hydraulic energy, but the conversion between energy is lost, and the oil motor itself has The serious problem of hydraulic oil leakage makes the mechanical efficiency of the oil motor not very high, which causes a large amount of energy to be consumed unnecessarily during the plasticizing process. At the same time, the hydraulic drive mechanism of the plastic injection blow molding machine itself consumes a lot of energy, especially when pre-molding, the oil pump is overloaded. Even so, the pre-molding action still takes up most of the flow. Most o...

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Problems solved by technology

[0002] At present, the plasticizing devices commonly used in plastic injection blow molding machines are all driven by hydraulic pressure. The hydraulically driven plasticizing device converts electrical energy into hydraulic energy, but the conversion between energy is lost, and the oil motor itself has The serious problem of hydraulic oil leakage makes the mechanical efficiency of the oil motor not very high, which causes a large amount of energy to be consumed unnecessarily during the plasticizing process

At the same time, the hydraulic drive mechanism of the plastic injection blow molding machine itself consumes a lot of energy, especially when pre-molding, the oil pump is overloaded. Even so, the pre-molding action still takes up most of the flow. Most of the actions of the plastic injection blow molding machine are driven by hydraulic pressure, so except for actions that consume little energy such as demoulding, there is no extra flow to support the operation of other actions. During the molding action, it is impossible to open and close the mold at the same time, which consumes a lot of energy, so that each step in the plastic injection blow molding process can only be arranged in a straight line, which greatly limits the arrangement of the plastic injection blow molding process

In actual production, there are also servo motors used to drive the plasticizing device to reduce the energy consumption of the machine, but the servo motor cannot be directly connected to the plasticizing device, it needs a reduction device to convert the high speed and low torque of the motor into low speed, High torque, but there is also energy consumption and waste in the process

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