A bottle embryo fixture head and accompanying fixture

Abstract

The invention relates to the technical field of bottle blank blow molding clamps and particularly relates to a bottle blank clamp head and a follow clamp. The bottle blank clamp head comprises a clamp head base, wherein the clamp head base is provided with a heat dissipation ring for fixing the bottle blank; the heat dissipation ring is hollow, a plurality of heat dissipation holes are formed in the periphery of the heat dissipation ring, the area of contact between the heat dissipation ring and a bottle blank mouth is reduced through arrangement of the heat dissipation holes, the heat transfer is reduced, a condition that the bottle blank mouth generates size deformation because of high temperature is avoided, and the blow molding reject ratio is reduced; the follow clamp comprises a clamp body, wherein the two sides of the clamp body are connected with sliding wheels, and the clamp body is internally provided with a rotating shaft; one end of the rotating shaft is provided with a driving wheel which can drive the driving wheel to rotate, and the other end of the rotating shaft is connected with the bottle blank clamp head; the follow clamp performs circulating transportation in a heating region, the temperature of the bottle blank clamp head is also controlled, a condition that the bottle blank mouth generates the size deformation because of high temperature is avoided, and the blow molding reject ratio is reduced.

Description

technical field [0001] The present invention relates to the technical field of preform blow molding fixtures, in particular to a preform fixture head and accompanying fixture. Background technique [0002] Plastic raw materials are used to process hollow plastic containers. First, the plastic raw materials need to be injected into preforms by injection molding machine. The preforms are sent to the heating zone through the conveying device. The preforms are heated twice in the heating zone, and the heated preforms enter the mold for blowing. Molded. [0003] In the process of reheating the transported preforms, since the conveying device needs to circulate in the heating zone, the heating zone continuously heats the preform clamping head of the conveying device, resulting in an increase in the temperature of the preform clamping head. However, the preform fixture head is in direct contact with the preform mouth, and the high temperature will easily cause the deformation of t...

AI Technical Summary

Problems solved by technology

[0003] In the process of reheating the conveying preform, since the conveying device needs to circulate in the heating zone, the heating zone continuously heats the preform clamping head of the conveying device, resulting in an increase in the temperature of the preform clamping head

However, the preform fixture head is in direct contact with the preform mouth, and high temperature will easily cause the deformation of the preform mouth, resulting in unstable dimensions of the blow molded bottle mouth and increasing the defective rate of blow molding.

Images