CN205148808U

CN205148808U - Injection mold concatenation formula insert exhaust mechanism

Info

Publication number: CN205148808U
Application number: CN201520653559.4U
Authority: CN
Inventors: 应义聪
Original assignee: Taizhou Nuoxin Mould Plastic Co Ltd
Current assignee: Taizhou Huangyan Ruili molding Limited by Share Ltd
Priority date: 2015-08-27
Filing date: 2015-08-27
Publication date: 2016-04-13
Anticipated expiration: 2025-08-27

Abstract

Injection mold concatenation formula insert exhaust mechanism including mould cavity and core, sets up the die cavity and inserts in the die cavity, set up the core in the core and insert, has injection moulding's handle between the die cavity is inserted and the core is inserted, and the link system of handle has barb and recess, and the pulling piece outside of handle sets up pulling piece slider, and pulling piece slider is driven outward smooth by the outer slide, the core of handle link department set up two dimidiate barbs on inserting and piece together the piece, two barbs piece together on the piece all that the system has the barb core, two barb cores are the side direction and cooperate with the barb to bumping, the core set up the recess core bar in inserting, the head and the groove phase of recess core bar match, two barbs are pieced together concatenation seam that piece and recess core bar and core inserted and are constituted the exhaust and stitch.

Description

The spliced insert exhaust gear of injection mold

Technical field

The utility model relates to the spliced insert exhaust gear of a kind of injection mold, belongs to injection mold field.

Background technology

Adopt injection mold to produce plastic product, such as automobile door pull handle, the core (dynamic model) that prior art produces handle is overall structure, and namely processing cavity in one piece of overall insert, makes mould strength good, long service life.But due to the reasons in structure of product (handle) own, the connection end of handle is provided with barb and groove, in order to ensure that product surface is bright and clean, cast gate is generally arranged on the link of handle, during injection moulding, the plastic raw materials of melting flowed into barb place before this, one section of process upwards flowed is had again after being full of barb, then enter groove, barb and groove are just relative handstand state, in the plastic raw materials filling process of melting, easy generation hot gas distributes, and the die cavity exhaust problem of entirety, cause product surface to have current mark, affect product quality.

Summary of the invention

The purpose of this utility model is the shortcoming in order to overcome prior art, provides a kind of core to adopt insert connecting method, the splicing seams exhaust between insert, makes the untired gas of die cavity, ensures the spliced insert exhaust gear of injection mold of product quality.

The technical scheme of the spliced insert exhaust gear of the utility model injection mold is: comprise mold cavity and core, in die cavity, cavity block is set, core insert is set in core, the handle of injection mo(u)lding is had between cavity block and core insert, the link of handle is shaped with barb and groove, the sheet arranged outside that pulls of handle pulls sheet slide block, sheet slide block is pulled to be driven by outer slide outer sliding, the core insert that it is characterized in that described handle link place arranges two pieces of barb pieces split, two pieces of barb pieces are all shaped with barb fuse, two barb fuses are that side direction crashes and to match with barb, in described core insert, groove core bar is set, the head of groove core bar and groove match, the splicing seams of two barb pieces and groove core bar and core insert forms to be vented and stitches.

The spliced insert exhaust gear of injection mold of the present utility model, main feature adopts the mode of splicing insert to arrange in barb fuse and groove core bar, after full die cavity filled by the plastic raw materials of melting, the first base of shaped article, then pressurize sizing is carried out to first base, now, in die cavity, pressure is very high, extrudes first base, the gas produced is discharged from exhaust seam in die cavity, eliminate the current mark of product surface, ensure that product surface is smooth.In actual production, allow to there is splicing seams between each piece of mould, do not affect the normal price of mould.But when after formed product, the product at this splicing seams place can produce splicing line, and the splicing line of this programme is positioned at the link of handle, link is arranged in automobile door handle, does not therefore affect the practical effect of handle.

The spliced insert exhaust gear of injection mold of the present utility model, be shaped with fixing hole in described core insert, groove core bar is arranged in fixing hole, has had fixing hole, and it is firm that groove core bar is installed.In described core, steam vent is set, makes gas be easier to discharge.Described exhaust seam < 0.03s, low on the bulk strength impact of mould, the plastic raw materials of melting also can not flow out, but does not affect exhaust.

Accompanying drawing explanation

Fig. 1 is the utility model injection mold spliced insert exhaust gear structural representation;

Fig. 2 is the utility model injection mold spliced insert exhaust gear split schematic diagram.

Detailed description of the invention

The utility model relates to the spliced insert exhaust gear of a kind of injection mold, as Fig. 1, shown in Fig. 2, comprise mold cavity 1 and core 2, cavity block 3 is set in die cavity, core insert 4 is set in core, the handle 5 of injection mo(u)lding is had between cavity block and core insert, the link of handle is shaped with barb 51 and groove 52, sheet 53 arranged outside that pulls of handle pulls sheet slide block 6, sheet slide block is pulled to drive outer cunning by outer slide 7, the core insert 4 at described handle link place is arranged two pieces of barb pieces 8 split, 9, two pieces of barb pieces 8, barb fuse 11 is all shaped with on 9, two barb fuses 11 crash in side direction and to match with barb 51, in described core insert 4, groove core bar 10 is set, head and the groove 52 of groove core bar 10 match, two barb pieces 8, 9 and groove core bar 10 form with the splicing seams of core insert 4 and be vented seam 15.The main feature of this programme barb fuse 11 and groove core bar 10 is adopted the mode of splicing insert to arrange, after full die cavity filled by the plastic raw materials of melting, the first base of shaped article, carry out pressurize sizing to first base again, now, in die cavity, pressure is very high, first base is extruded, the gas produced in die cavity is discharged from exhaust seam 15, eliminates the current mark of product surface, ensure that product surface is smooth.In actual production, allow to there is splicing seams between each piece of mould, do not affect the normal price of mould.But when after formed product, the product at this splicing seams place can produce splicing line, and the splicing line of this programme is positioned at the link of handle, link is arranged in automobile door handle, does not therefore affect the practical effect of handle.Be shaped with fixing hole 13 in described core insert 4, groove core bar 10 is arranged in fixing hole 13, has had fixing hole, and it is firm that groove core bar is installed.In described core 2, steam vent 12 is set, makes gas be easier to discharge.Described exhaust seam < 0.03s, low on the bulk strength impact of mould, the plastic raw materials of melting also can not flow out, but does not affect exhaust.

Claims

1. the spliced insert exhaust gear of injection mold, comprise mold cavity (1) and core (2), cavity block (3) is set in die cavity, core insert (4) is set in core, the handle (5) of injection mo(u)lding is had between cavity block and core insert, the link of handle is shaped with barb (51) and groove (52), sheet (53) arranged outside that pulls of handle pulls sheet slide block (6), sheet slide block is pulled to be driven by outer slide (7) outer sliding, the core insert (4) that it is characterized in that described handle link place arranges two pieces of barb pieces (8 split, 9), two pieces of barb pieces (8, 9) barb fuse (11) is all shaped with on, two barb fuses (11) crash in side direction and to match with barb (51), in described core insert (4), groove core bar (10) is set, head and the groove (52) of groove core bar (10) match, two barb pieces (8, 9) and the splicing seams of groove core bar (10) and core insert (4) form to be vented and stitch (15).

2. the spliced insert exhaust gear of injection mold as claimed in claim 1, it is characterized in that being shaped with fixing hole (13) in described core insert (4), groove core bar (10) is arranged in fixing hole (13).

3. the spliced insert exhaust gear of injection mold as claimed in claim 1, is characterized in that arranging steam vent (12) in described core (2).