Plastic bottle pipe heater

Abstract

Plastic bottle tube heater, which includes a frame, a circular rotary dial, a heating device, a reflector and a positioning type rotation mechanism for a plastic bottle tube heater. The heating device is installed on the outside of the plastic bottle tube, and the reflector is installed on the plastic bottle tube. On the inner side, there is a plastic bottle tube heater positioning type rotation mechanism on the inside and outside of the plastic bottle nozzle. The mechanism includes a round wheel in contact with the inner side of the nozzle of the plastic bottle and a friction device in contact with the outer side. The round wheel is installed on the rotary dial, and each toggle tooth on the edge of the rotary dial has a corresponding round wheel. The friction device is that the rotating belt is installed on the frame through the bracket, and there are tension wheels driven by power; or the friction device is a friction bar, which is in contact with the cooling water tank installed on the frame. There are grooves in the side wall of the friction bar for cooling. A hook is inserted into the groove on the water tank, and the friction strip or the cooling water tank is installed on the frame by the fixing piece.

Description

technical field [0001] The invention relates to an autorotation mechanism of a plastic bottle tube in a plastic bottle tube heater, belonging to processing equipment for plastic hollow containers. Background technique [0002] Two-step method is used to process plastic hollow containers, such as mineral water bottles, oil bottles and cosmetic bottles, etc. First, the plastic raw materials are injected into bottle tubes by the injection molding machine, and then the plastic bottle tubes are heated by the heater, and then the plastic bottle tubes are heated by the stretch blowing machine. The heated plastic bottle tube is stretch-blown, so a plastic bottle tube heater is needed. There are many types of existing plastic bottle tube heaters. One type of heater is to turn the mouth of the plastic bottle tube upwards and drive the bottle tube to pass through the heating zone with a heating device by the toggle teeth of a circular rotating dial. The bottle tube must rotate continu...

AI Technical Summary

Problems solved by technology

However, during the working process of this type of structure, the large disc only has a line contact with the inner side of the mouth of the plastic bottle, and the contact surface is small, so that the plastic bottle tube swings unstable during operation, which affects the heating quality.

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