CN201881517U

CN201881517U - Injection mold

Info

Publication number: CN201881517U
Application number: CN2010206104228U
Authority: CN
Inventors: 王贤云; 吴小平; 蒋坤学
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2010-11-05
Filing date: 2010-11-05
Publication date: 2011-06-29
Anticipated expiration: 2020-11-05

Abstract

The utility model discloses an injection mold, which comprises a fixed mold, a movable mold, a fixed plate, an upper ejector plate, a lower ejector plate, at least one product ejector pin and at least one delay ejector pin. The movable mold and the fixed mold are opposite to each other; a cavity and a runner are enclosed in mold closing; a clamping space is arranged between the upper ejector plate and the lower ejector plate; and an outwardly projecting clamped portion is arranged in the middle of each delay ejector pin and movably clamped in the clamping space. The injection mold can correspondingly form runner waste materials in the runner while forming products. When in mold opening, the product ejector pin can firstly eject a product to separate the product from the runner waste materials, and then the delay ejector pin ejects the runner waste materials, so that production efficiency is increased.

Description

Injection mold

Technical field

The utility model relates to a kind of mould, relates in particular to a kind of injection mold.

Background technology

See also Fig. 8, it is a kind of demoulding view of existing mold 10 '.This existing mold 10 ' comprises that a cover half (figure do not show), a dynamic model 20 ', a upper ejector plate 30 ', are fixed in product thimble 40 ' on the upper ejector plate 30 ', liftout plate 50 ' and is fixed in the following thimble 60 ' on the liftout plate 50 ' down once.Cover half and dynamic model 20 ' the corresponding setting, and when matched moulds, surround die cavity, raw material injects die cavity from runner and makes product 81 and runner waste material 91 through cooling; During die sinking, product thimble 40 ' the corresponding ejection product 81 bottoms, following thimble 60 ' the corresponding ejection runner waste material 91 bottoms; Product thimble 40 ' reaches down, and thimble 60 ' ejects product 81 and runner waste material 91 together.

Yet the product 81 that is obtained by above-mentioned existing mold 10 ' tends to stick together with runner waste material 91, must manually separate and reprocess just to reach production requirement, thereby prolong the production time, is unfavorable for enhancing productivity.

The utility model content

Thereby the injection mold that provides a kind of automatic products of separated and runner waste material to enhance productivity is provided the purpose of this utility model.

To achieve these goals, the utility model injection mold comprises a cover half, a dynamic model, a fixed head, a upper ejector plate, once liftout plate, at least one product thimble and at least one delay thimble.This dynamic model and cover half are oppositely arranged, and dynamic model and cover half surround die cavity and runner during matched moulds, the back-off groove that offers the product centre hole that communicates with die cavity, the delay centre hole that communicates with runner on this dynamic model and communicate with runner; This fixed head be arranged at below the dynamic model and and dynamic model between form an activity space, this fixed head is provided with a jacking block; This upper ejector plate is installed in the activity space movably; This time liftout plate is fixed in the upper ejector plate below, and following liftout plate and upper ejector plate are surrounded by and hold the space, and this time liftout plate offers and holds the through hole that the space communicates; Liftout plate was fixed under product thimble one end was reached by upper ejector plate, and the other end can extend in the product centre hole; This delay thimble is installed in down on liftout plate and the upper ejector plate movably, postpone the thimble center and outwards convexed to form the holding section, the holding section is fastened in movably and holds in the space, this delay thimble upper end can extend into and postpone in the centre hole, and the other end can stretch out from the through hole of following liftout plate and replace with jacking block when matched moulds.

As mentioned above, the utility model injection mold can correspondingly form the runner waste material and form back-off in the back-off groove in shaped article in runner, when die sinking, the product thimble can be replaced product earlier, product is separated with the runner waste material that is fixed in by back-off on the dynamic model, postpone thimble then and again runner waste material and back-off are ejected, thereby enhance productivity.

As further improvement, the described space that holds can be located between the upper and lower liftout plate.

The described space that holds also can be located on the upper ejector plate.

The described space that holds also can be located at down on the liftout plate.

Description of drawings

Cutaway view when Fig. 1 is the utility model injection mold matched moulds;

Fig. 2 is the dynamic model and the cover half schematic diagram of injection mold shown in Figure 1;

Fig. 3 is the utility model injection mold die sinking process one view;

Fig. 4 is the utility model injection mold die opening state schematic diagram;

Fig. 5 holds the space schematic diagram for the utility model injection mold;

Fig. 6 is the schematic diagram that holds the second kind of embodiment in space of the utility model injection mold;

Fig. 7 is the schematic diagram that holds the third embodiment of space of the utility model injection mold;

A kind of view when Fig. 8 is the existing mold die sinking.

Each description of reference numerals is as follows among the figure:

Injection mold 100 cover half 10

Dynamic model 20 product centre holes 21

Postpone centre hole 22 back-off grooves 23

Fixed head 30 jacking blocks 31

Activity space 32 upper ejector plates 40

Following liftout plate 50 through holes 51

Hold space 52 product thimbles 60

Postpone thimble 70 holding sections 71

Die cavity 80 products 81

Runner 90 runner waste materials 91

Back-off 92

The specific embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.

See also Fig. 1, the utility model injection mold 100 comprises a cover half 10, a dynamic model 20, a fixed head 30, a upper ejector plate 40, once liftout plate 50, at least one product thimble 60 and at least one delay thimble 70.

Please continue and consult Fig. 2, this dynamic model 20 is oppositely arranged with cover half 10, dynamic model 20 and cover half 10 surround die cavity 80 and runner 90 during matched moulds, the back-off groove 23 that offers the product centre hole 21 that communicates with die cavity 80, the delay centre hole 22 that communicates with runner 90 on this dynamic model 20 and communicate with runner 90.

This fixed head 30 be arranged at below the dynamic model 20 and and dynamic model 20 between form an activity space 32, this fixed head is provided with a jacking block 31.

This upper ejector plate 40 is installed in the activity space 32 movably; This time liftout plate 50 is fixed in upper ejector plate 40 belows, and this time liftout plate 50 is surrounded by with upper ejector plate 40 and holds space 52 (as Fig. 5), respectively offers on this upper and

lower liftout plate

40,50 and holds the through hole 51 that space 52 communicates.In the utility model, this holds space 52 can also only be located on the upper ejector plate 40 (as Fig. 6) or (as Fig. 7) on the liftout plate 50 down.

These product thimble 60 1 ends are by upper ejector plate 40 and liftout plate 50 is fixing down, and the other end can extend in the product centre hole 21.

This delay thimble 70 is installed in down on liftout plate 50 and the upper ejector plate 40 movably, these delay thimble 70 center have outwards convexed to form holding section 71, holding section 71 is fastened in movably and holds in the space 52, these delay thimble 70 upper ends can extend into and postpone in the centre hole 22, and the other end can stretch out from the through hole 51 of following liftout plate and replace with jacking block 31 when matched moulds.

Please continue and consult Fig. 1, the cutaway view when it is the utility model injection mold 100 matched moulds: raw material injects die cavity 80 and back-off groove 23 from runner 90, makes product 81, runner waste material 91 and back-off 92 through cooling.Wherein product thimble 60 1 ends are resisted against product 81 bottoms, and the other end is fixed between the upper and

lower liftout plate

40,50; Postpone thimble 70 1 ends and be resisted against runner waste material 91 bottoms, the other end is resisted against jacking block 31.

See also Fig. 1 and Fig. 3, during 100 demouldings of the utility model injection mold, upper and

lower liftout plate

40,50 moves up, product thimble 60 is fixed owing to postpone thimble 70 not fixed, therefore it is motionless and product thimble 60 will upwards eject product 81 to postpone thimble 70, thereby product 81 is separated with the runner waste material 91 that is fixed on the dynamic model 20 by back-off 92.

See also Fig. 3 and Fig. 4, when upper and

lower liftout plate

40,50 was moved upwards up to position shown in Figure 3, following liftout plate 50 ejection holding sections 71 and make and postpone thimble 70 and upwards eject together were connected to male model 20 until upper ejector plate 40.

During the utility model injection mold 100 matched moulds, last thimble 40 moves down with upper and

lower liftout plate

40,50; Postpone thimble 70 and just begun not move down, when upper ejector plate 40 ejections during in holding section 71, postpone thimble 70 also with move down, be resisted against on the jacking block 31 of fixed head 30 until postponing thimble 70 lower ends.

As mentioned above, the utility model injection mold 100 can correspondingly form runner waste material 91 and form back-off 92 in back-off groove 23 in runner 90 in shaped article 81, when die sinking, product thimble 60 can be replaced product 81 earlier, product 81 is separated with the runner waste material 91 that is fixed on the dynamic model 20 by back-off 92, postpone thimble 70 then and again runner waste material 91 and back-off 92 are ejected, thereby enhance productivity.

Claims

1. an injection mold is used for automatic products of separated and runner waste material, comprises a cover half, a dynamic model, a fixed head, a upper ejector plate, liftout plate once, at least one product thimble and at least one delay thimble; The corresponding setting of this dynamic model with cover half, dynamic model and cover half surround die cavity and runner during matched moulds, offer the product centre hole that communicates with die cavity on this dynamic model; This fixed head be arranged at below the dynamic model and and dynamic model between form an activity space; Upper and lower liftout plate fixes, and is installed in movably in the activity space; Liftout plate was fixed under this product thimble one end was reached by upper ejector plate, and the other end can extend in the product centre hole; It is characterized in that: offer delay centre hole that communicates with runner and the back-off groove that communicates with runner on this dynamic model; This fixed head is provided with a jacking block; This time liftout plate and upper ejector plate are surrounded by and hold the space, and this upper and lower liftout plate offers respectively and holds the through hole that the space communicates; This delay thimble is installed in down on liftout plate and the upper ejector plate movably, its center has outwards convexed to form the holding section, the holding section is fastened in movably and holds in the space, and this delay thimble upper end can extend into and postpone in the centre hole, and the other end can be replaced with jacking block when matched moulds.

2. injection mold as claimed in claim 1 is characterized in that: the described space that holds can be located between the upper and lower liftout plate.

3. injection mold as claimed in claim 1 is characterized in that: the described space that holds can be located on the upper ejector plate.

4. injection mold as claimed in claim 1 is characterized in that: the described space that holds can be located at down on the liftout plate.