CN201538015U - Core of injection mold - Google Patents

Abstract

The utility model discloses a core of a mold used in processing plastic performs. The known core structure is a ladder-shaped cylinder which can only be used for the processing of the common performs with one body and one cavity and can not realize the processing of the performs with one body and two cavities or a plurality of cavities. Two hollow equant half cylinders with a same structure and a uniform appearance are relatively combined into the core in a plane, and the core is composed of a core fixing part, a core working part and a cooling waterway. A gap is arranged between the two half cylinders of the core working part, and the gap is a space for generating an interlayer. And so on, the core composed of three one-third cylinders is suitable for processing the performs with one body and three cavities, and the core composed of four one-fourth cylinders is suitable for processing the performs with one body and four cavities.

Description

A kind of injection mold core

Technical fieldThe utility model relates to the used a kind of injection mold core of processing plastic bottle base, particularly can process the mold cores of one two chamber bottle bases.

Background technologyAt present, known core structure is a stair-stepping cylinder, can be used for the processing of the single chamber of common one bottle base, and can't realize processing one two-chamber bottle base.

The utility model contentTask of the present utility model provides a kind of core, and it can be used to process one two chambeies or one multi-cavity bottle base.

The purpose of this utility model is achieved in that core has two structures identical, and the hollow isometrical pass cylinder of profile unanimity combines relatively with the plane.After the contact of core standing part two semicircular body, form a cylinder, be reserved with the gap between two cylinders of core working portion, two semi-circular cores have cooling water channel separately.Also can adopt a whole column structure, with the core working portion, cut out a gap according to diameter, two semicircular body of formation: isometrical, equal-volume, the solid top of core is divided into integral cylinder.More than two kinds of technical schemes, all be applicable to processing one two two-chamber bottle bases.

Owing to adopt such scheme, just can utilize core described in the utility model, process one two-chamber bottle base or one multi-cavity bottle base.

Description of drawingsFig. 1 is the upward view of first kind of embodiment core of the utility model;

Fig. 2 is the half sectional view of first kind of embodiment core of the utility model;

Fig. 3 is the left view of first kind of embodiment core of the utility model;

Fig. 4 is the upward view of second kind of embodiment core of the utility model;

Fig. 5 is the full sectional view of second kind of embodiment core of the utility model;

Fig. 6 is the left view of second kind of embodiment core of the utility model;

The specific embodiment

Mode one: with reference to Fig. 1, Fig. 2, Fig. 3, two structures are identical, the isometrical semicylinder of the hollow of profile unanimity, be combined into core relatively with the plane, after core standing part 1 synthesizes cylinder relatively according to diametral plane, core working portion 2 is made up of two semicylinders equally, and leaves gap 3 between two semicolumns, and this gap 3 is the space that produces the bottle base interlayer.Two half-cylinders is equipped with cooling water channel 4, is the temperature of core with reduction work.

Mode two: with reference to Fig. 4, Fig. 5 Fig. 6, core is a whole column structure, and core standing part 1 is a cylinder, and core working portion 2 is cut out a gap 3 according to diameter, and gap 3 is the space that produces the bottle base interlayer.It is water channel 4 that two half-cylinders is equipped with cold, the temperature of core during with reduction work.

More than in two kinds of embodiments, be preferred plan in mode one, so the structure manufacturing procedure is simple, help the processing of each face, and the process-cycle is short.

Claims (1)

1. an injection mold core is that the processing plastic bottle base is used, is made up of core standing part (1), core working portion (2) and cooling water channel (4) respectively, it is characterized in that: leave gap (3) between core working portion (2) two half-cylinders.

Images