Blank pressing device of bottle blowing machine

Abstract

The invention discloses a blank pressing device of a bottle blowing machine. The blank pressing device comprises a blank feeding rack and a bottle blank conveying mechanism which are arranged on a table plate of the bottle blowing machine; the blank feeding rack is used for feeding bottle blanks; the bottle blank conveying mechanism is used for conveying the bottle blanks after blank pressing; and a blank pressing device body is fixedly arranged on the table plate of the bottle blowing machine and used for pressing heating heads into the bottle blanks in the conveying and converting process of the blank feeding rack and the bottle blank conveying mechanism. According to the blank pressing device, the stretching action of an air cylinder is controlled by controlling operation of an electromagnetic valve, when the air cylinder stretches out, a knuckle bearing is driven to enable a blank pressing guide rail to move upwards, at the moment, the blank pressing guide rail is separated from a lifting bearing, and the electromagnetic valve controls lifting; and otherwise, when the electromagnetic valve controls the air cylinder to contract, the blank pressing guide rail is driven to rotate downwards, the lifting bearing moves downwards along the blank pressing guide rail, the heating heads on blank inserting lifting assemblies are driven to stretch and contract downwards to be inserted into the inner diameters of the bottle blanks, and the blank pressing device of the bottle blowing machine is sensitive in response and high in precision and stability.

Description

technical field [0001] The invention relates to the technical field of blow molding industry, in particular to a compacting device of a bottle blowing machine. Background technique [0002] Rotary blow molding machine is a kind of equipment that makes plastic particles into hollow containers through blow molding process. The more common models include hollow extrusion blow machines that use PP and PE for one molding, and PET, PC or PP for two times. Formed injection stretch blow molding machines, as well as the newly developed multi-layer hollow extrusion blow molding and stretch blow molding, most of the blow molding machines are still two-step blow molding machines, that is, the plastic raw materials must first be made into preforms , and then proceed to blowing. [0003] Before stretching, the preform needs to be heated and softened. When the plastic bottle enters the heating control position from the track, the preform needs to pass through the small turntable and engag...

AI Technical Summary

Problems solved by technology

When the heating head is inserted into the inner diameter of the preform, the heating head is lifted up, and the preform device is required to press the heating head into the preform to ensure that the material of the preform is pressed and fixed. Once the preform device is loose, it will directly affect the blowing process. bottle making quality

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