Driving mechanism of steel band driving roller in plastic film casting machine

Abstract

The invention discloses a driving mechanism of a steel band driving roller in a plastic film casting machine. A shaft end of a steel band driving roller in the casting machine is directly connected with a rotor of a torque motor, the motor is connected with a connecting shaft sleeve of a driving roller shaft end through a transition flange plate, and the connecting shaft sleeve is directly sleeved on the driving roller shaft end; one surface of a double-faced flange plate base plane is connected with a bearing end cap, and one surface of a sunken table limit structure is connected with a stator of the torque motor; this driving mechanism is further connected with an encoder component comprising an encoder and a transition small shaft, one end of the transition small shaft is inserted into an encoder movable shaft sleeve to fix together with the same, and the other end is embedded into the driving roller shaft end; and an annular plate in the middle part of the transition small shaft is fixed at the driving roller shaft end. The driving mechanism configures a periphery water-cooling unit to communicate with a cooling loop built in the torque motor. The driving mechanism improves the transmission precision and the transmission efficiency, improves the stability and the consistency of the steel band walking, guarantees the molding quality of the plastic film thick sheet of the casting unit, and lowers the mounting and maintenance cost.

Description

technical field [0001] The invention relates to a motor driving mechanism, in particular to a driving mechanism for a steel belt driving roller in a plastic film casting machine. Background technique [0002] Casting is one of the molding processes of thick plastic film. It is mainly that the high-temperature plastic resin solution is casted by a die and then attached to a flat steel belt. The cast thick piece is cooled and formed as the steel belt travels. The steel belt travel is driven by the driving roller, the diameter of the driving roller is relatively large, generally 1000mm to 2000mm, the entire driving roller is in the thermal environment of the tape casting machine, its running speed is low, and the torque is high, especially requiring long-term continuous transmission The consistency is high, which directly determines the consistency of the steel belt running, that is, determines the forming quality of the cast thick film. The existing commonly used drive roller...

AI Technical Summary

Problems solved by technology

Although this structure realizes the drive of the roller by the direct drive motor, this structure cannot guarantee high-precision transmission requirements; risk, it is difficult to practical

In this design, the stator adopts an independent support structure, which cannot well meet the requirements for the concentricity of the stator and the rotor (roller), and also increases the difficulty of installation and debugging.

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