CN223478169U - In-mold control double-color injection mold structure - Google Patents

Abstract

The utility model discloses a mold structure for controlling double-shot injection in a mold, which relates to the technical field of molds and comprises an insulating plate, a top plate, a manifold plate, an a disc, a b disc, a supporting plate, a blank plate and a bottom plate which are arranged from top to bottom, wherein an ejector plate is arranged between the blank plates, one side of the ejector plate is connected with an ejector plate fixing plate, the mold structure also comprises two sets of mold cores, wherein a rear mold core is arranged at the bottom plate, and a front mold core is arranged at the top plate. According to the utility model, two sets of oil cylinders are respectively arranged at the glue feeding positions of the respective cavities of the rear mold core and the front mold core, the communication state of the respective cavities of the rear mold core and the front mold core is controlled through the expansion and contraction of the oil cylinders during use, so that products without two colors being combined can be conveniently produced, the setting of the device does not need the working procedure of opening the mold to rotate the rear mold during the production of injection molding with different colors in the prior art, the whole injection molding period is greatly shortened, the injection molding machine table also does not need to be provided with a turntable, and the use effect is better.

Description

In-mold control double-color injection mold structure

Technical Field

The utility model relates to the technical field of molds, in particular to a mold structure for controlling double-color injection molding in a mold.

Background

Double-shot molding refers to a molding process in which two different materials are injected into the same set of mold, thereby realizing that the injection molded part is formed by the two materials. Some materials are different in color, and some materials are different in hardness, so that the attractiveness, assembly and other performances of the product are improved.

In the chinese patent application No. CN202210857072.2, a dual-color injection mold core structure and dual-color injection mold are proposed, and the in-mold cavity conversion can be completed in the mold opening process by setting the oblique guide pillar, the first slider, the first bent pin and the cavity insert, without additionally setting a hydraulic cylinder driving mechanism, so that the manufacturing cost of the mold is reduced, the time period of dual-color injection molding is shortened, and the injection molding processing efficiency of the mold is improved.

However, in the prior art, when the double-color product is produced for injection molding, the working procedure of opening the mold to rotate the back mold is needed, the injection molding period is greatly longer, the injection molding machine table is required to be provided with a turntable, and the working efficiency is required to be improved. The present utility model thus proposes an in-mold controlled dual-shot mold structure.

Disclosure of utility model

Technical problem to be solved

The utility model aims to make up the defects of the prior art and provides a mold structure for controlling double-color injection in a mold.

Technical proposal

The utility model provides a mold structure for controlling double-color injection molding in a mold, which comprises an insulating plate, a top plate, a manifold plate, an a disc, a b disc, a supporting plate, a blank plate and a bottom plate which are arranged from top to bottom, wherein an ejector plate is arranged between the blank plates, one side of the ejector plate is connected with an ejector plate fixing plate, the mold structure further comprises two sets of mold cores, wherein a rear mold core is arranged at the bottom plate, a front mold core is arranged at the top plate, the rear mold core adopts a mosaic structure, a hot runner is adopted by a glue feeding mode of the rear mold core, a needle valve hot runner is adopted by the front mold core, two sets of oil cylinders are respectively arranged at glue feeding positions of respective cavities of the rear mold core and the front mold core, and the communication states of respective cavities of the rear mold core and the front mold core are respectively controlled through the expansion and contraction of the oil cylinders during use, so that products combining two colors are not needed can be conveniently produced.

Preferably, the expansion and contraction of the oil cylinder is used for controlling the communication state of the respective cavities of the rear mold core and the front mold core.

Preferably, the insulating plate, the top plate, the manifold plate and the a-plate form a front mold.

Preferably, the b disc, the supporting plate, the empty grid plate and the bottom plate form a rear membrane.

Preferably, the front die and the rear die are connected in a guiding manner through the cooperation of guide posts.

Preferably, the needle valve hot runner of the rear mold core is connected with the first hot nozzle.

Preferably, the needle point type hot runner of the front mold core is connected with the second heat radiating nozzle.

The beneficial effects are that:

compared with the prior art, the mold structure for controlling double-shot injection in the mold has the following beneficial effects:

The utility model has two mold core structures of the back mold core and the front mold core, two sets of oil cylinders are respectively arranged at the glue feeding positions of the respective cavities of the back mold core and the front mold core, the communication state of the respective cavities of the back mold core and the front mold core is controlled by the extension and contraction of the oil cylinders during use, so that products without two colors combination can be conveniently produced, the setting of the device does not need the working procedure of opening the mold to rotate the back mold during the production of injection molding with different colors in the prior art, the whole injection molding period is greatly shortened, the injection molding machine table also does not need to be provided with a turntable, and the use effect is better.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic diagram of the structure of the cylinder according to the present utility model;

Fig. 4 is a schematic view showing the separated structure of the front mold and the rear mold according to the present utility model.

In the figure:

1. An insulating plate; 2, a top plate, 3, a manifold plate, 4, a disc, 5, b disc, 6, a supporting plate, 7, a space plate, 8, a bottom plate, 9, an ejector plate, 10, an ejector plate fixing plate, 11, a rear mold core, 12, a front mold core, 13, an oil cylinder, 14, a guide pillar, 15, a first heat radiation nozzle, 16 and a second heat radiation nozzle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model provides a technical scheme, wherein the die structure for controlling double-shot injection in a die comprises an insulating plate 1, a top plate 2, a manifold plate 3, an a disc 4, a b disc 5, a supporting plate 6, a blank plate 7 and a bottom plate 8 which are arranged from top to bottom, an ejector plate 9 is arranged between the blank plates 7, one side of the ejector plate 9 is connected with an ejector plate fixing plate 10, and the die structure further comprises two sets of die cores, wherein a rear die core 11 is arranged at the bottom plate 8, a front die core 12 is arranged at the top plate 2, the rear die core 11 adopts a mosaic structure, a hot runner is adopted by a glue feeding mode of the rear die core 11, a needle valve hot runner is adopted by the front die core 12, two sets of oil cylinders 13 are respectively arranged at glue feeding positions of respective cavities of the rear die core 11 and the front die core 12, and the two sets of oil cylinders 13 are respectively arranged at glue feeding positions of respective cavities of the rear die cores 11 and the front die cores 12, and when the die cores are used, the die cores 11 and the front die cores 12 are respectively controlled to be in a communicating state by the respective cavities of the oil cylinders 13, so that the die cores 11 and the front die cores are conveniently produced without two color combination, and the die cores are arranged at the position of the back die core 11 and the front die core 12 are arranged in a large-shot injection molding cycle, and the injection molding device is required to be shortened when the prior art is required to be used, and the injection molding device is required to be used to be more and a large in injection molding process and injection molding device.

Referring to fig. 3, the extension and retraction of the oil cylinder 13 is used to control the communication state of the respective cavities of the rear mold core 11 and the front mold core 12.

Referring to fig. 4, an insulating plate 1, a top plate 2, a manifold plate 3 and an a-plate 4 form a front mold, a b-plate 5, a supporting plate 6, a space plate 7 and a bottom plate 8 form a rear mold, and the front mold and the rear mold are connected through guide posts 14 in a matched guide manner.

Referring to fig. 2, the needle valve hot runner of the rear mold core 11 is connected to the first heat injection nozzle 15, and the needle point hot runner of the front mold core 12 is connected to the second heat injection nozzle 16.

The device has the working principle that two sets of oil cylinders 13 are respectively arranged at the glue feeding positions of the cavities of the rear mold core 11 and the front mold core 12, the communication state of the cavities of the rear mold core 11 and the front mold core 12 is controlled by the extension and contraction of the oil cylinders 13 during use, so that products combining two colors can be conveniently produced, the device does not need the working procedure of opening the mold and rotating the rear mold during the production of injection molding with different colors in the prior art, the whole injection molding period is greatly shortened, the injection molding machine table also does not need to be provided with a turntable, and the use effect is better.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The mold structure for controlling double-color injection molding in a mold comprises an insulating plate (1), a top plate (2), a manifold plate (3), an a disc (4), a b disc (5), a supporting plate (6), a space plate (7) and a bottom plate (8) which are arranged from top to bottom, wherein an ejector plate (9) is arranged between the space plates (7), one side of the ejector plate (9) is connected with an ejector plate fixing plate (10), and the mold structure is characterized by further comprising two sets of mold cores, wherein a rear mold core (11) is arranged at the bottom plate (8), a front mold core (12) is arranged at the top plate (2), the rear mold core (11) adopts a splicing structure, a hot runner and a needle valve hot runner are adopted by a glue feeding mode of the rear mold core (11), and two sets of oil cylinders (13) are respectively arranged at glue feeding positions of respective cavities of the rear mold core (11) and the front mold core (12).

2. The in-mold controlled double-shot mold structure according to claim 1, wherein the expansion and contraction of the oil cylinder (13) is used for controlling the communication state of the respective cavities of the rear mold core (11) and the front mold core (12).

3. The in-mold controlled double-shot mold structure according to claim 1, wherein the insulating plate (1), the top plate (2), the manifold plate (3) and the a-plate (4) constitute a front mold.

4. The in-mold controlled double-shot mold structure according to claim 1, wherein the b-plate (5), the support plate (6), the blank plate (7) and the bottom plate (8) form a rear film.

5. The in-mold controlled double-shot mold structure according to claim 1, wherein the front mold and the rear mold are connected by guide posts (14) in a matched guide manner.

6. The in-mold controlled double-shot mold structure according to claim 1, wherein the needle valve hot runner of the rear mold core (11) is connected with the first hot nozzle (15).

7. The in-mold controlled double-shot mold structure according to claim 1, wherein the needle point type hot runner of the front mold core (12) is connected with the second hot nozzle (16).