CN2540272Y

CN2540272Y - Side sprue automatic cutting-off injection mould

Info

Publication number: CN2540272Y
Application number: CN 02267383
Authority: CN
Inventors: 许思光
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-31
Filing date: 2002-05-31
Publication date: 2003-03-19
Anticipated expiration: 2012-05-31

Abstract

The utility model discloses an injection mold which automatically cuts off gates and is used for side gate feeding types. The utility model relates to a movable mold plate (3) and a fixed mold plate (12). A shim plate (4) and a mold foot (6) are arranged on the movable mold plate (3), wherein a push rod fixing plate (5) is arranged on the shim plate (4), and a push rod (7), a push rod (21) and a resetting rod (20) are arranged on the push rod fixing plate (5); a movable mold (8) is arranged on the mold foot (6), and an insert (9) and a guide column (19) are arranged on the movable mold (8). A fixed mold (11), a positioning ring (15) and a gate bush (16) are arranged on the fixed mold plate (12), wherein the center of the gate bush (16) is provided with a flow channel (17) of which the front edn is provided with a gate (28); a guide bush (18) is arranged on the fixed mold (11) and corresponds to the guide column (19), and the guide bush (18) and the guide column (19) are connected in an inserting mode. The utility model is characterized in that a push rod (25) is arranged on the fixed mold plate (12), a spring (22) is arranged on the movable mold (8), and a side cutting edge cutter (23) and a side cutting edge resetting block (24) are arranged on the movable mold (8) and the fixed mold (11) and can mutually exchange positions. The utility model has the advantages that the labor intensity of workers is lightened, the labor production rate is enhanced, the simple is structure, and the manufacture is convenient.

Description

Injection mould able to automatically cut-off pouring head for lateral pouring head

Technical field:

The utility model relates to the plastic injection mould technical field, is a kind of injection molding that is used for the automatic break gate of side gate charging form specifically.

Background technology:

At present, the injection molding of existing side gate charging form, injection back runner still connects together with goods, need the personnel selection work point from goods and runner, so it is big that the shortcoming of this type of mould maximum is a labour intensity, production efficiency is low, and the injection mould able to automatically cut-off pouring head for lateral pouring head that a kind of goods of automatically plastics being injected separate with runner was not seen at present.

Summary of the invention:

The purpose of this utility model is intended to overcome the deficiency of above-mentioned prior art, and the injection mould able to automatically cut-off pouring head for lateral pouring head that provides a kind of goods of automatically plastics being injected to separate with runner, can reduce the operation of artificial Separation Product and runner, reduce labor intensity, raise labour productivity, mainly solved existing injection mould, the problem that injection back runner links to each other with goods.

To achieve these goals, the utility model is achieved in that injection mould able to automatically cut-off pouring head for lateral pouring head, it comprises moving platen 3 and solid plate 12, on moving platen 3, establish backing plate 4, mould pin 6, establish ejector pin retaining plate 5 on the backing plate 4, on ejector pin retaining plate 5, establish push rod 7, push rod 21, release link 20, backing plate 4, ejector pin retaining plate 5, push rod 7, push rod 21, release link 20 are formed an assembly, between the Kong Zaimo pin 6 of the release link 20 of dynamic model 8, move, on mould pin 6, establish dynamic model 8, establish mold insert 9, guide pillar 19 on the dynamic model 8; On solid plate 12, establish quiet mould 11, centring ring 5, sprue bush 16, runner 17 is established at sprue bush 16 centers, runner 17 front ends are established cast gate 28, establish guide pin bushing 18 on quiet mould 11, guide pin bushing 18 is corresponding with guide pillar 19, and the two plugs, its special character is to establish push rod 25 on solid plate 12, on dynamic model 8, establish spring 22, on dynamic model 8, quiet mould 11, establish side edge cutting knife 23, side edge resetting block 24, the two interchangeable position.

To achieve these goals, one of injection mould able to automatically cut-off pouring head for lateral pouring head of the present utility model preferably embodiment be on described dynamic model 8, to establish spring 22, on mold insert 9, establish side edge cutting knife 23, on quiet mould 11, establish side edge resetting block 24.

To achieve these goals, another embodiment of injection mould able to automatically cut-off pouring head for lateral pouring head of the present utility model is to establish spring 22, side edge resetting block 24 on described mold insert 9, establishes side edge cutting knife 23 on quiet mould 11.

To achieve these goals, injection mould able to automatically cut-off pouring head for lateral pouring head of the present utility model also can be established spring 29 on described solid plate 12, and its described sprue bush 16 can move between quiet mould 11, solid plate 12, centring ring 15.

The utility model compared with the prior art, have outstanding substantive distinguishing features and marked improvement, 1, owing on mould, increased spring, side edge cutting knife, side edge resetting block, push rod etc., reduced the operation of artificial Separation Product and runner, alleviated working strength of workers, raised labour productivity; 2, changed traditional side gate injection mould structure, and it is simple in structure, easy to make.

Description of drawings:

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

Fig. 2---another kind of structural representation of the present utility model;

Fig. 3---another structural representation of the present utility model;

Fig. 4---side edge cutting knife of the present utility model and side edge resetting block side view.

The specific embodiment:

In order to understand better and to implement, provide specific embodiment below in conjunction with accompanying drawing and describe the utility model injection mould able to automatically cut-off pouring head for lateral pouring head in detail.

Embodiment 1, referring to Fig. 1,4, moving platen 3 is made in machined, backing plate 4, mould pin 6 are installed on moving platen 3, ejector pin retaining plate 5 is installed on the backing plate 4, on ejector pin retaining plate 5, establish push rod 7, push rod 21, release link 20, backing plate 4, ejector pin retaining plate 5, push rod 7, push rod 21, release link 20 are formed an assembly, between the Kong Zaimo pin 6 of the release link 20 of dynamic model 8, move, on mould pin 6, install and establish dynamic model 8, mold insert 9, guide pillar 19, spring 22 are installed on the dynamic model 8, side edge cutting knife 23 is installed on mold insert 9; Solid plate 12 is made in machined, and push rod 25, quiet mould 11, centring ring 5, sprue bush 16 are installed on the solid plate 12, and sprue bush 16 centers are runner 17, runner 17 front ends are offered cast gate 28, mounting guide sleeve 18, side edge resetting block 24 on quiet mould 11, guide pin bushing 18 is corresponding with guide pillar 19, and the two plugs; Moving platen 3 is fixedly mounted on the moving plate 1 of the injection-moulding device of being with knock-pin 2; Solid plate 12 is fixedly mounted on deciding on the plate 13 of injection-moulding device, decides hydraulic cylinder 26, nozzle 14, runner ejection plate 27 are installed on the plate 13, sprue bush 16 is corresponding with nozzle 14; Its job order is: matched moulds, and injection, runner cuts off, die sinking, runner and goods eject, matched moulds.

Injection mould able to automatically cut-off pouring head for lateral pouring head of the present utility model, the mould of Fig. 1 is in " locking state ", runner ejection plate 27 is an original state, plastics enter die cavity through runner 17, cast gate 28 during injection under liquid state, until goods 10 end-of-fills, behind the goods curing molding, hydraulic injection molding machine cylinder 26 drives runner ejection plate 27 and retreats, side edge cutting knife 23, side edge resetting block 24, push rod 25 retreat under the effect of spring 22, and cast gate 28 is cut off, and have realized that cast gate separates with goods; The motor-driven plate 1 of injection moulding retreats then, driving dynamic model 8 grades retreats, dynamic model 8 is separated with quiet mould 11, and goods 10 are trapped on the dynamic model 8 with runner 17, and dynamic model 8 grades retreat into stop motion behind the position of setting, injection machine knock-pin 2 advances,

drive push rod

7,21, release link 20 are advanced, and goods 10 and runner 17 are ejected core, and take away or fall automatically, runner ejection plate 27 advances under the effect of stream cylinder pressure 26 and resets, and side edge resetting block 24, push rod 25 reset; Knock-pin 2 retreats, and moving plate 1 is being with dynamic model 8 to advance, and

push rod

7,21 resets under the effect of release link 20, and side edge cutting knife 23, spring 22 reset under the effect of side edge resetting block 24.

Embodiment 2, and referring to Fig. 2,4, the injection mould able to automatically cut-off pouring head for lateral pouring head of present embodiment side edge cutting knife 23 as different from Example 1 is installed on the quiet mould 11.Its job order is: matched moulds, and injection, runner cuts off, die sinking, runner and goods eject, matched moulds.

Injection mould able to automatically cut-off pouring head for lateral pouring head of the present utility model, the mould of Fig. 2 is in " locking state ", runner ejection plate 27 is an original state, plastics enter die cavity through runner 17, cast gate 28 during injection under liquid state, until goods 10 end-of-fills, behind the goods curing molding, hydraulic injection molding machine cylinder 26 drives runner ejection plate 27 and advances, side edge cutting knife 23, side edge resetting block 24, push rod 25, spring 22 advance under the effect of runner ejection plate 27, and cast gate 28 is cut off, and have realized that cast gate separates with goods; The motor-driven plate 1 of injection moulding retreats then, driving dynamic model 8 grades retreats, dynamic model 8 is separated with quiet mould 11, and goods 10 are trapped on the dynamic model 8 with runner 17, and dynamic model 8 grades retreat into stop motion behind the position of setting, injection machine knock-pin 2 advances, drive

push rod

7,21, release link 20 are advanced, and goods 10 and runner 17 are ejected core, and take away or fall automatically, runner ejection plate 27 retreats under the effect of stream cylinder pressure 26 and resets, and side edge cutting knife 23, push rod 25, side edge resetting block 24 reset under the effect of spring 22; Knock-pin 2 retreats, and moving plate 1 is being with dynamic model 8 to advance, and push

rod

7,21 resets under the effect of release link 20.

Embodiment 3, referring to Fig. 3,4, the injection mould able to automatically cut-off pouring head for lateral pouring head of present embodiment injection machine does not as different from Example 1 have hydraulic cylinder 26 and runner ejection plate 27, establishes spring 29 on solid plate 12, on no runner ejection plate injection machine, use, but its cast gate scope only limits in the sprue bush scope.Its job order is: matched moulds, and injection, nozzle retreats, runner cuts off, die sinking, runner and goods eject, matched moulds.

Injection mould able to automatically cut-off pouring head for lateral pouring head of the present utility model, Fig. 3 is the matched moulds state, this moment, mould was in " locking state ", during injection plastics under liquid state through runner 17, cast gate 28 enters die cavity, until goods 10 end-of-fills, behind the goods curing molding, injection machine nozzle 14 retreats, side edge cutting knife 23, side edge resetting block 24, push rod 25, sprue bush 16 is at spring 22, retreat under 29 the effect, and with gate cutting, realized that cast gate separates with goods, the motor-driven plate 1 of injection moulding retreats then, driving dynamic model 8 grades retreats, dynamic model 8 is separated with quiet mould 11, goods 10 are trapped on the dynamic model with runner 17, dynamic models etc. retreat into stop motion behind the position of Gao Ding, injection machine knock-pin 2 advances, drive

push rod

7,21, release link 20 is advanced, and goods 10 and runner 17 is ejected core, and take away or fall automatically, nozzle 14 advances and resets, side edge resetting block 24, push rod 25, sprue bush 16 resets, and knock-pin 2 retreats, and moving plate 1 is being with dynamic model 8 to advance,

push rod

7,21 reset side edge cutting knife 23 under the effect of release link 20, spring 22 resets under the effect of side edge resetting block 24.

Claims

1, injection mould able to automatically cut-off pouring head for lateral pouring head, it comprises moving platen (3) and solid plate (12), on moving platen (3), establish backing plate (4), mould pin (6), establish ejector pin retaining plate (5) on the backing plate (4), on ejector pin retaining plate (5), establish push rod (7), push rod (21), release link (20), on mould pin (6), establish dynamic model (8), establish mold insert (9), guide pillar (19) on the dynamic model (8); On solid plate (12), establish quiet mould (11), centring ring (15), sprue bush (16), runner (17) is established at sprue bush (16) center, runner (17) front end is established cast gate (28), on quiet mould (11), establish guide pin bushing (18), guide pin bushing (18) is corresponding with guide pillar (19), the two plugs, it is characterized in that on solid plate (12), establishing push rod (25), on dynamic model (8), establish spring (22), on dynamic model (8), quiet mould (11), establish side edge cutting knife (23), side edge resetting block (24), the two interchangeable position.

2, by the described injection mould able to automatically cut-off pouring head for lateral pouring head of claim 1, it is characterized in that establishing spring (22) on the described dynamic model (8), on mold insert (9), establish side edge cutting knife (23), on quiet mould (11), establish side edge resetting block (24).

3, by the described injection mould able to automatically cut-off pouring head for lateral pouring head of claim 1, it is characterized in that establishing spring (22), side edge resetting block (24) on the described mold insert (9), on quiet mould (11), establish side edge cutting knife (23).

4, by claim 1 or 2 or 3 described injection mould able to automatically cut-off pouring head for lateral pouring head, it is characterized in that establishing on the described solid plate (12) spring (29).

5, by claim 1 or 2 or 3 described injection mould able to automatically cut-off pouring head for lateral pouring head, it is characterized in that described sprue bush (16) can move between quiet mould (11), solid plate (12), centring ring (15).

6, by the described injection mould able to automatically cut-off pouring head for lateral pouring head of claim 4, it is characterized in that described sprue bush (16) can move between quiet mould (11), solid plate (12), centring ring (15).