CN201325148Y

CN201325148Y - Bottle billet die

Info

Publication number: CN201325148Y
Application number: CNU2008201683227U
Authority: CN
Inventors: 解冬正
Original assignee: Individual
Current assignee: CHINA TAIZHOU HUANGYAN MEGA MACHINERY MOULD Co Ltd
Priority date: 2008-11-14
Filing date: 2008-11-14
Publication date: 2009-10-14
Anticipated expiration: 2018-11-14

Abstract

A bottle billet die belongs to the technical field of dies and comprises a die core and a die core sleeve which is sleeved and matched with the die core, wherein the front portion of the die core is matched with a die cavity in an inserted mode, screws which are detachably matched are arranged between the front end of the die core sleeve and the die cavity, the bottle billet die is characterized in that the front end of the die core is sealed and matched with the inner wall of the die core sleeve through pyramidal faces, the rear end is sealed and matched with the inner wall of the die core sleeve through a cylinder face, a ring-shaped sealed hollow cavity is formed between the middle portion of the die core and the inner wall of the die core sleeve, a gas inlet which is communicated with the ring-shaped sealed hollow cavity is arranged on the lower end of the die core sleeve in a matched mode, and a gas exhaust port which is communicated with the ring-shaped sealed hollow cavity is arranged on the upper end of the die core sleeve in a matched mode. The bottle billet die has good cooling effects and gas exhaust functions, stable production and short shaping period, the appearance of finished products is beautiful, the bottle billet die can be matched with mechanical arms for work, the production efficiency can be improved, simultaneously, and the screws adopt two pyramidal faces for matching and locking, thereby greatly improving the service life of the die. The structure is compact, the maintenance is convenient, the appearance size of the die can be further reduced, and the production cost is low.

Description

A kind of preform mould

Technical field

The utility model belongs to technical field of mold, is specially a kind of preform mould.

Background technology

Existing preform mould, most of screw socket is not done cooling water channel and air discharge duct, makes the molding cycle lengthening, and produces substandard product easily; Core no air discharge duct of cover and air blowing function can't be used with manipulator, and production efficiency is low; Core cover and core closely cooperate by the face of cylinder, and the dismounting difficulty is unfavorable for maintenance; The mould structure accessory size is relatively big, causes the die shape size to increase, and injection will be used the bigger injector of tonnage when producing, and production cost will improve.

The utility model content

At the above-mentioned problems in the prior art, the purpose of this utility model is to design the technical scheme that a kind of preform mould is provided, and does but this structure cooperative mechanical is manual, molding cycle is short, easy to maintenance, can further dwindle the die shape size, production cost is low.

Described a kind of preform mould, comprise core and the core cover that cooperates with its socket, core is anterior to be cooperated with the die cavity plug-in type, between core cover front end and the die cavity screw socket that split cooperates is set, it is characterized in that the core front end cooperates by conical surface seal with core cover inwall, rear end and core cover inwall are sealed and matched by the face of cylinder, constitute a ring packing cavity between core middle part and the core cover inwall, core cover lower end is equipped with the air inlet that is communicated with the ring packing cavity, and the core set upper side is equipped with the exhaust outlet that is communicated with the ring packing cavity.

Described a kind of preform mould is characterized in that ventilative cavity, exhaust passage that exhaust outlet passes through to be provided with on the wall body of core set upper side are communicated with the ring packing cavity.

Described a kind of preform mould is characterized in that air inlet is communicated with the ring packing cavity by the inlet channel that is provided with on the wall body of core cover lower end.

Described a kind of preform mould is characterized in that on the inwall of core set upper side air discharge duct being set.

Described a kind of preform mould is characterized in that on the split mating surface of described screw socket the screw socket air discharge duct being set.

Described a kind of preform mould is characterized in that in the screw socket wall body cooling water channel being set, and water inlet, delivery port are set on the cooling water channel.

Described a kind of preform mould is characterized in that the screw socket upper and lower side cooperates by conical surface seal with die cavity, core cover.

Described a kind of preform mould is characterized in that described cooling water channel is a v-shaped structure.

Above-mentioned a kind of preform mould has favorable cooling effect and degassing function, produces stable, molding cycle is short, and the product design of making is attractive in appearance, does but cooperative mechanical is manual, production efficiency is improved, and screw socket adopts the bipyramid face to lock simultaneously, has improved the service life of mould greatly.This structure compact conformation, easy to maintenance, can further dwindle the die shape size, production cost is low.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the integrated structure schematic diagram of core and core cover;

Fig. 3 is the partial structurtes schematic diagram of Fig. 2;

Fig. 4 is the plan structure schematic diagram of Fig. 2;

Fig. 5 is the structural representation of half screw socket;

Fig. 6 is Fig. 5 side-looking structural representation;

Fig. 7 is a screw socket master TV structure schematic diagram;

Among the figure: 1-die cavity, 2-core, 3-screw socket, 4-core cover, 5/5a-exhaust outlet, 6-exhaust passage, the ventilative cavity of 7-, 8-ring packing cavity, 9-air inlet, 10-inlet channel, 11-air discharge duct, 12-screw socket air discharge duct, 13-cooling water channel, 14-water inlet, 15-delivery port.

The specific embodiment

The utility model is described in further detail below in conjunction with Figure of description.

As shown in the figure, the core cover 4 that this preform mould comprises core 2 and cooperates with its socket, core 2 front portions cooperate with die cavity 1 plug-in type, core overlaps between 4 front ends and the die cavity 1 screw socket 3 that split cooperates is set, core 2 front ends overlap 4 inwalls with core and cooperate by conical surface seal, and rear end and core overlap 4 inwalls and be sealed and matched by the face of cylinder, and core cover 4 designs with the cone match of core 2, for convenience detach, dwindle accessory size.Core 2 middle parts and core overlap and constitute a ring packing cavity 8 between 4 inwalls, and core overlaps 4 lower ends and is equipped with the air inlet 9 that is communicated with ring packing cavity 8, and core overlaps 4 upper ends and is equipped with the exhaust outlet 5/5a that is communicated with ring packing cavity 8.Exhaust outlet 5/5a is symmetrical arranged, and overlaps the ventilative cavity 7, the exhaust passage 6 that are provided with on the 4 upper end wall bodies by core and be communicated with ring packing cavity 8.Air inlet 9 overlaps the inlet channel 10 that is provided with on the 4 lower end wall bodies and is communicated with ring packing cavity 8 by core.Core overlaps on the 4 upper end inwalls air discharge duct 11 is set, and on the split mating surface of described screw socket 3 screw socket air discharge duct 12 is set.Air discharge duct 11, screw socket air discharge duct 12 are in time discharged the waste gas of air that remains in molding space and plastics heating generation in injection molding process, in order to avoid cause exhausts such as plastic burns, blackout bad.

In screw socket 3 wall bodies cooling water channel 13 is set, described cooling water channel 13 is a v-shaped structure.Water inlet 14, delivery port 15 are set on the cooling water channel 13, and cooling water enters from water inlet 14, comes out from delivery port 15 through the V-arrangement water route, and cooling water moves in circles and finishes the cooling procedure of screw socket 3.A seal groove is done at water inlet 14 places, plays the effect of leaking of preventing.Screw socket about in the of 3 two conical surfaces cooperate with the conical surface seal of core cover 4, die cavity 1 respectively, play the effect of double tapered positioning and locking, make the plastic product design more attractive in appearance, die life is longer.

When die sinking put in place, high pressure draught entered from air inlet 9, arrived ring packing cavity 8 through inlet channel 10, and air-flow is gone out from exhaust outlet 5/5a respectively through ventilative cavity 7, exhaust passage 6 under the effect of pressure, to reach the auxiliary action of moulding adobe blocks.

Claims

1, a kind of preform mould, comprise core (2) and the core cover (4) that cooperates with its socket, core (2) is anterior to be cooperated with die cavity (1) plug-in type, between core cover (4) front end and the die cavity (1) screw socket (3) that split cooperates is set, it is characterized in that core (2) cooperates by conical surface seal with core cover (4) front inner wall, be sealed and matched by the face of cylinder with core cover (4) rear end inwall, constitute a ring packing cavity (8) between core (2) middle part and core cover (4) inwall, core cover (4) lower end is equipped with the air inlet (9) that is communicated with ring packing cavity (8), and core cover (4) upper end is equipped with the exhaust outlet (5/5a) that is communicated with ring packing cavity (8).

2, a kind of preform mould as claimed in claim 1 is characterized in that exhaust outlet (5/5a) is communicated with ring packing cavity (8) by ventilative cavity (7), exhaust passage (6) that are provided with on the wall body of core cover (4) upper end.

3, a kind of preform mould as claimed in claim 1 is characterized in that air inlet (9) is communicated with ring packing cavity (8) by the inlet channel (10) that is provided with on the wall body of core cover (4) lower end.

4, a kind of preform mould as claimed in claim 1 is characterized in that on the inwall of core cover (4) upper end air discharge duct (11) being set.

5, a kind of preform mould as claimed in claim 1 is characterized in that on the split mating surface of described screw socket (3) screw socket air discharge duct (12) being set.

6, a kind of preform mould as claimed in claim 1 is characterized in that in screw socket (3) wall body cooling water channel (13) being set, and water inlet (14), delivery port (15) are set on the cooling water channel (13).

7, a kind of preform mould as claimed in claim 1 is characterized in that screw socket (3) upper and lower side cooperates by conical surface seal with die cavity (1), core cover (4).

8, a kind of preform mould as claimed in claim 6 is characterized in that described cooling water channel (13) is a v-shaped structure.