CN201511501U

CN201511501U - Concealed split-type gating insert for injection die

Info

Publication number: CN201511501U
Application number: CN2009201980548U
Authority: CN
Inventors: 牟能杰
Original assignee: Binhai Moulds & Plastics Group Co ltd
Current assignee: Binhai Moulds & Plastics Group Co ltd
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-06-23
Anticipated expiration: 2019-09-30

Abstract

A concealed split-type gating insert for an injection die includes an upper compound plate and a lower compound plate, the upper compound plate is connected with a die cavity, a positioning ring and a gating bush are mounted in the upper compound plate and the die cavity, a die leg and an ejector plate are mounted on the lower compound plate, an ejector rod is mounted on the ejector plate, a die core is mounted on the die leg, the die core and the die cavity form a die chamber, the die core and the die cavity each has a runner formed by symmetrical half runners, and the runner is communicated with the die chamber through a concealed pouring gate. The insert is characterized in that an insert A and an insert B matched with each other are mounted in the cavity core, and symmetrical semi-concealed pouring gates are formed on the insert A and the insert B in opposite directions. The insert A and the insert B matched with each other are mounted in the cavity core provided by the technical scheme, and the concealed pouring gates are formed on the insert A and the insert B, so that curved concealed pouring gates with complicate structures can be processed, requirements for various products are met, the damage hazard of the die is reduced, and the manufacturing cost of the die is lowered.

Description

The injection mold split type gating insert of hiding

Technical field

The utility model relates to the split type gating insert of hiding of injection mold, mainly is the improvement to traditional tunnel gate runner form.

Background technology

Existing sub marine gate commonly used is the whole sub marine gate of linear pattern in the injection mold, its shortcoming is: one, because sub marine gate runner direction and stripping direction have certain angle, the depanning of runner waste material must forced stripper mechanism, the runner cold burden easily takes place fracture and be retained in the die body.Because of runner is an integral form, easily cause mould to damage in the time of removing the waste material that is retained in the mold runner and the difficulty that repairs a die is big, expense is high; Two, the cast gate flow channel shape is single, can not be changeable; Three, runner cast gate processing difficulties; Four, in the process debugging process, adjust the cast gate size as need, the linear pattern sub marine gate is difficult to be realized.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming of prior art, to provide a kind of easy to adjust, and runner can be made difformity according to the goods demand, easy maintenance, the injection mold that cost of manufacture the is low split type gating insert of hiding.

The hide technical scheme of split type gating insert of the utility model injection mold is: comprise compound plate and following compound plate, last compound plate connects die cavity, locating ring and sprue bush are installed in last compound plate and the die cavity, mould pin and top board are installed on the following compound plate, push rod is installed on the top board, on the mould pin core is installed, enough become die cavity between core and the die cavity, core and die cavity are shaped on the semi-fluid road of symmetry separately and form runner, runner is communicated with die cavity through sub marine gate, it is characterized in that in the described core installing that the first that matches is inserted and second is inserted first, second is inserted and is shaped on half sub marine gate of symmetry in opposite directions.

The injection mold of the present utility model split type gating insert of hiding, the first that installation matches in core is inserted and second is inserted, first, second is inserted and is shaped on half sub marine gate of symmetry in opposite directions, promptly in inserting, first, second is shaped on half sub marine gate of symmetry, symmetry half sub marine gate of making on first, second is inserted merges in the embedding core in opposite directions, has just formed the novel sub marine gate of easy accessibility.Because sub marine gate is prepared on two of first, second insert, can process complex-shaped shaped form sub marine gate, satisfied the different requirements of different product, reduced the risk that mould damages simultaneously, reduced the Mold Making expense.

The injection mold of the present utility model split type gating insert of hiding, its described first, second insert wherein one be shaped on through hole in inserting, push rod passes through hole, push rod passes through hole and withstands on the glue handle after the die sinking, power by die sinking, to break between glue handle and the product, the product automatic demoulding need not to prune the glue handle, saves man-hour.Its described first, second is inserted and is fixed in the core by screw, and is easy for installation, firm.

Description of drawings

Fig. 1 is the A-A schematic cross-section of Fig. 2;

Fig. 2 is the B-B schematic cross-section of Fig. 1;

Fig. 3 is the C place partial enlarged drawing of Fig. 1.

The specific embodiment

The utility model relates to the injection mold split type gating insert of hiding, as shown in Figure 1-Figure 3, comprise compound plate 1 and following compound plate 2, last compound plate 1 connects die cavity 3, locating ring 7 and sprue bush 8 are installed in last compound plate and the die cavity, mould pin 4 and top board 5 are installed on the following compound plate, push rod 13 is installed on the top board, core 6 is installed on the mould pin, enough become die cavity between core 6 and the die cavity 3, core and die cavity are shaped on the semi-fluid road of symmetry separately and form runner 9, and runner is communicated with die cavity through sub marine gate, it is characterized in that in the described core 6 installing the first that matches insert 10 and second insert 11, first,

second inserts

10,11 are shaped on half sub marine gate 12 of symmetry in opposite directions.This programme in core 6, install the first that matches insert 10 and second insert 11, first, second is inserted and is shaped on half sub marine gate 12 of symmetry in opposite directions, promptly insert and be shaped on half sub marine gate 12 of symmetry in 10,11 in first, second, when insert symmetry half sub marine gate 12 made on 10,11 of first, second merges in opposite directions and embeds in the core 6, just formed the novel sub marine gate of easy accessibility.Because sub marine gate is prepared on two of first, second insert, can process complex-shaped shaped form sub marine gate, satisfied the different requirements of different product, reduced the risk that mould damages simultaneously, reduced the Mold Making expense.Its described first,

second insert

10,11 wherein one be shaped on through hole 14 in inserting, push rod 13 passes through hole 14, push rod passes through hole and withstands on the glue handle after the die sinking, power by die sinking, to break between glue handle and the product, the product automatic demoulding need not to prune the glue handle, saves man-hour.Its described first, second is inserted and 10,11 is fixed in the core 6 by screw 18, and is easy for installation, firm.

Claims

1. the injection mold split type gating insert of hiding, comprise compound plate (1) and following compound plate (2), last compound plate (1) connects die cavity (3), locating ring (7) and sprue bush (8) are installed in last compound plate and the die cavity, mould pin (4) and top board (5) are installed on the following compound plate, push rod (13) is installed on the top board, core (6) is installed on the mould pin, enough become die cavity between core (6) and the die cavity (3), core and die cavity are shaped on the semi-fluid road of symmetry separately and form runner (9), runner is communicated with die cavity through sub marine gate, it is characterized in that installing in the described core (6) that the first that matches is inserted (10) and second is inserted (11) first, second inserts (10,11) be shaped on symmetrical half sub marine gate (12) in opposite directions.

2. the injection mold as claimed in claim 1 split type gating insert of hiding, it is characterized in that described first, second insert (10,11) wherein one be shaped on through hole (14) in inserting, push rod (13) passes through hole (14).

3. the injection mold as claimed in claim 1 split type gating insert of hiding, it is characterized in that described first, second insert (10,11) be fixed in the core (6) by screw (18).