Plastic blow molding machine

Abstract

The invention relates to the technical field of molding machines, in particular to a plastic blow molding machine. The plastic blow molding machine comprises a molding machine body, an electric sliding rail is arranged in the middle of the inner surface of the rear end of the molding machine body, a moving table is slidably connected to the outer surface of the electric sliding rail, and a feeding nozzle is arranged at the position, close to middle position, on outer surface of upper end of moving table. By arranging a cutting mechanism, in the plastic blow molding process, an air nozzle corresponds to an inlet through the electric sliding rail, the air nozzle begins to descend to prepare for air blowing, in the descending process, the bottom of the air nozzle extrudes an arc-shaped block, a mounting block is opened, first cutters are opened, the air nozzle 5 after descending begins to blow air, blow molding is conducted, after blow molding is completed, the air nozzle starts to rise, the extrusion force of the bottom of the air nozzle on the arc-shaped block disappears, the mounting block can recover due to the elastic force of a first spring, then normal work of the subsequent cutting mechanism is guaranteed, the first cutters on two sides start to be closed to cut off burrs, therefore, the labor cost is reduced, and the overall practicability of the device is improved.

Description

technical field [0001] The invention relates to the technical field of molding machines, in particular to a plastic blow molding machine. Background technique [0002] Blow molding refers to hollow blow molding (also known as blow molding). It is a method of blowing the hot-melt parison closed in the mold to form a hollow product by means of gas pressure. It is a fast-growing plastic molding method. The mold used for blow molding only has a female mold (concave mold). Compared with injection molding, the cost of equipment is lower, the adaptability is stronger, the formability is good (such as low stress), and products with complex undulating curves (shape) can be formed. . [0003] A Chinese patent discloses a plastic injection blow molding machine, the patent application number is 201821577498.8, which includes a conveying device, the upper end of which is equipped with a drying device, and the conveying device includes a workbench, a motor, a motor shaft, a gear, Fixing...

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Problems solved by technology

[0004] For small plastic factories, although the above comparative patented injection blow molding machine can drive the conveyor belt to rotate through the motor, avoid accumulation through manual handling, and disperse the hot air from the hot air blower through the diffuser to facilitate drying of the plastic, but in the molding process In the process, it is necessary to manually cut off the export raw materials, and then perform blow molding. After the plastic workpiece is blow molded, it is necessary to manually deburr the work. On the one hand, it increases the labor cost, and on the other hand, it affects the progress of the blow molding work. When demolding after molding, since the molded workpiece is not completely dry, the comparative patent does not provide any auxiliary demoulding device, which will cause the surface of the plastic workpiece to It is easy to be damaged, which will affect the smoothness of the surface of the plastic workpiece and reduce the quality of the plastic workpiece

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