CN219171519U - Novel double-layer rubber pad injection mold - Google Patents

Abstract

The utility model discloses a novel double-layer rubber pad injection mold, which comprises a runner plate, an upper template, a middle template, a lower template, a plurality of movable plates and a plurality of ejector rods, wherein the movable plates are detachably arranged in corresponding mounting grooves formed in the middle template, and a plurality of rubber cavities are formed in the upper side and the lower side of the movable plates; four corners of the bottom of each movable plate are provided with a push rod, and the push rods are arranged at four corners of the mounting groove; through setting up a plurality of fly boards on the middle bolster, cope match-plate pattern, middle bolster and lower bolster cooperate and form two-layer a plurality of rubber die cavities from top to bottom at the fly board, can inject simultaneously and produce a plurality of rubber pads, improve production efficiency and yield, to the rubber pad product that the annual quantity is very big, dimensional tolerance is more strict, need not to increase several pairs of moulds, auxiliary fixtures and cold runner system to reduce the overlap, reduce the unit consumption.

Description

Novel double-layer rubber pad injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to a novel double-layer rubber pad injection mold.

Background

The traditional single-layer rubber pad injection mould structure is an injection mould composed of four plates, and for rubber pad products with large annual usage and strict dimensional tolerance, a plurality of pairs of injection moulds are required to be opened, and a cold runner system is required to be opened in consideration of unit consumption, so that price quotation for single products and moulds is very high, and the price quotation is basically not competitive in the same industry.

In the mold processing, a plurality of pairs of molds, auxiliary tools and cold runner systems are required to be opened, the processing time is long, and the project development period time is long. In the vulcanization process, a plurality of molds are required to be simultaneously put on line, the capacity of a machine is occupied, the number of vulcanization staff is increased, meanwhile, burrs generated during vulcanization are increased due to the fact that the molds are put on line together for production, and unit consumption is increased.

Disclosure of Invention

The utility model aims to provide a novel double-layer rubber pad injection mold, which can improve the production efficiency and the yield, reduce flash, reduce unit consumption and meet the annual requirement so as to solve the problems in the background technology.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a novel double-deck rubber pad injection mold, includes runner board, cope match-plate pattern, well template and lower bolster, still includes:

the movable plates are detachably arranged in corresponding mounting grooves formed in the middle template, and a plurality of rubber cavities are formed in the upper side and the lower side of the movable plates;

and the four corners of the bottom of each movable plate are provided with one ejector rod, and the ejector rods are arranged at the four corners of the mounting groove.

As a further scheme of the utility model: a main runner is arranged at the center of the runner plate, and two ends of the main runner are respectively communicated with a branch runner.

As a further scheme of the utility model: the side channel includes:

the center of the vertical flow channel is communicated with the end part of the main flow channel;

the centers of the two horizontal flow channels are respectively connected with two ends of the vertical flow channel.

As a further scheme of the utility model: eight vertical through-hole flow channels are formed in the upper die plate and are communicated with corresponding horizontal flow channel discharge ports respectively.

As a further scheme of the utility model: and the movable plates are provided with feed inlets communicated with the vertical through hole flow channels.

As a further scheme of the utility model: the middle template is also provided with a spring hook which is used for limiting the movable plate in the mounting groove.

As a further scheme of the utility model: the device also comprises four guide posts, and the runner plate, the upper template, the middle template and the lower template are all positioned through the guide posts.

The utility model has at least the following beneficial effects:

(1) The upper template, the middle template and the lower template are matched with each other to form two layers of multiple rubber cavities on the upper and lower sides of the movable plate, and meanwhile, multiple rubber pads can be produced by injection, so that the production efficiency and the yield are improved, and for rubber pad products with large annual usage and strict dimensional tolerance, a plurality of pairs of dies, auxiliary tools and cold runner systems are not required to be additionally arranged, burrs are reduced, and the unit consumption is reduced;

(2) By arranging four ejector rods at four corners of the movable plate, the movable plate can be ejected out for a certain distance and then ejected out of the rubber product of the first layer, so that the rubber of the first layer is prevented from being damaged by supporting the movable plate by the rubber of the first layer;

(3) Through setting up the spring couple, prevent that the upper mould from separating with the well mould when the demolding and leading to the fly leaf to hang on the upper mould mold core to lead to the demolding difficulty, the spring couple can guarantee that rubber product and fly leaf of two-layer all block in the well mould when the demolding.

Drawings

The utility model is further described below with reference to the accompanying drawings.

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

FIG. 2 is an exploded schematic view of the overall structure of the present utility model;

FIG. 3 is an exploded view of a template and a fly leaf structure in accordance with the present utility model;

fig. 4 is a schematic view of the main channel and the sub-channel according to the present utility model.

In the figure: 1. a flow channel plate; 2. an upper template; 3. a middle template; 4. a lower template; 5. a movable plate; 6. a mounting groove; 7. a rubber cavity; 8. a push rod; 9. a guide post; 10. a main flow passage; 11. a branch flow passage; 12. a vertical flow channel; 13. a horizontal flow channel; 14. a vertical through-hole flow passage; 15. a feed inlet; 16. a spring hook.

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 present utility model is a novel double-layer rubber gasket injection mold, which needs to be matched with an external cold runner system and injection equipment, and comprises a runner plate 1, an upper die plate 2, a middle die plate 3, a lower die plate 4, a plurality of movable plates 5 and a plurality of ejector rods 8.

Wherein, a plurality of movable plates 5 are detachably arranged in corresponding mounting grooves 6 arranged on the middle die plate 3, and a plurality of rubber cavities 7 are formed on the upper side and the lower side of the movable plates 5; the four corners of the bottom of each movable plate 5 of the plurality of ejector rods 8 are provided with one ejector rod 8, the ejector rods 8 are arranged at four corners of the mounting groove 6, preferably, four guide posts 9 are further arranged between the runner plate 1 and the lower die plate 4, the runner plate 1, the upper die plate 2, the middle die plate 3 and the lower die plate 4 are positioned through the guide posts 9, the positioned upper die plate 2, the positioned middle die plate 3 and the positioned lower die plate 4 are matched with the movable plates 5 to form two layers of a plurality of rubber cavities 7, and the two layers of the plurality of rubber cavities 7 can be used for simultaneously producing a plurality of rubber pads.

Further, as shown in fig. 4, in the present embodiment, a main runner 10 is provided at the center of the runner plate 1, and two ends of the main runner 10 are respectively connected to one branch runner 11; preferably, the branch flow channel 11 may include one vertical flow channel 12 and two horizontal flow channels 13.

Wherein the center of the vertical flow channel 12 is communicated with the end part of the main flow channel 10; the centers of the two horizontal flow channels 13 are respectively connected to two ends of the vertical flow channel 12, injection molding liquid flows into the vertical flow channel 12 from the main flow channel 10, and then flows into the discharge ports of the two horizontal flow channels 13 at the two ends from the vertical flow channel 12.

Further, as shown in fig. 2, eight vertical through-hole flow channels 14 are formed on the upper template 2, the vertical through-hole flow channels 14 are respectively communicated with the corresponding discharge ports of the horizontal flow channels 13, and injection molding liquid flows into the vertical through-hole flow channels 14 from the discharge ports of the horizontal flow channels 13.

Further, the movable plate 5 is provided with a feed inlet 15 communicated with the vertical through hole flow channel 14, and injection molding liquid flows into the feed inlet 15 of the movable plate 5 from the vertical through hole flow channel 14, so that injection molding and feeding of the upper rubber cavity 7 and the lower rubber cavity 7 of the movable plate 5 are facilitated.

Further, a spring hook 16 is further arranged on the middle template 3, and the spring hook 16 is used for limiting the movable plate 5 in the mounting groove 6.

During injection molding, the injection molding machine injects rubber injection molding liquid into the main runner 10 of the upper template 2, the injection molding liquid flows into the vertical runner 12 from the main runner 10, then flows into the two horizontal runners 13 at two ends of the vertical runner 12 from the vertical runner 12, then flows into the vertical through hole runner 14 from the discharge ports of the two horizontal runners 13, flows into the feed inlet 15 of the movable plate 5 from the vertical through hole runner 14, finally flows into the two layers of a plurality of rubber cavities 7 formed by the upper template 2, the middle template 3 and the lower template 4 matched with the movable plate 5, and simultaneously can inject and produce a plurality of rubber pads, so that the production efficiency and the yield are improved, and for rubber pad products with large annual usage and strict dimensional tolerance, a plurality of auxiliary tools and cold runner systems are not required to be increased, flash is reduced, and the unit consumption is reduced; after the plastic pad is formed, the movable plate 5 is ejected out for a certain distance through the ejector rod 8, and then the rubber product of the first layer is ejected out, so that the movable plate 5 is supported by the rubber of the first layer to avoid the ejection of the rubber product of the first layer; in addition, in order to prevent the movable plate 5 from being hung on the upper die core due to the separation of the upper die and the middle die during the die stripping, so that the die stripping is difficult, a plurality of spring hook 16 mechanisms are added to the middle die during the design, so that the two layers of rubber products and the movable plate 5 can be clamped in the middle die during the die stripping, then the two layers of rubber products and the movable plate 5 are ejected by a special stripper, and the second layer of products need to be stripped outside.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present utility model.

In addition, unless explicitly stated or limited otherwise, the terms "mounted," "connected," "coupled," and the like should be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing detailed description of the preferred embodiments of the utility model should not be taken as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims (7)

1. The utility model provides a novel double-deck rubber pad injection mold, includes runner board (1), cope match-plate pattern (2), well mould (3) and lower bolster (4), its characterized in that still includes:

a plurality of movable plates (5) which are detachably arranged in corresponding mounting grooves (6) arranged on the middle die plate (3), wherein a plurality of rubber cavities (7) are formed on the upper side and the lower side of the movable plates (5);

and a plurality of ejector rods (8), wherein each ejector rod (8) is arranged at four corners of the bottom of each movable plate (5), and the ejector rods (8) are arranged at four corners of the mounting groove (6).

2. The novel double-layer rubber pad injection mold according to claim 1, wherein a main runner (10) is arranged at the center of the runner plate (1), and two ends of the main runner (10) are respectively communicated with a branch runner (11).

3. A new double rubber gasket injection mould according to claim 2, characterized in that the side channel (11) comprises:

the center of the vertical flow passage (12) is communicated with the end part of the main flow passage (10);

the centers of the two horizontal flow channels (13) are respectively connected with the two ends of the vertical flow channel (12).

4. A novel double-layer rubber pad injection mold according to claim 3, wherein eight vertical through-hole flow passages (14) are formed in the upper mold plate (2), and the vertical through-hole flow passages (14) are respectively communicated with the discharge ports of the corresponding horizontal flow passages (13).

5. The novel double-layer rubber pad injection mold according to claim 4, wherein the movable plates (5) are provided with feed inlets (15) communicated with the vertical through hole runners (14).

6. The novel double-layer rubber pad injection mold according to claim 1, wherein the middle mold plate (3) is further provided with a spring hook (16), and the spring hook (16) is used for limiting the movable plate (5) in the mounting groove (6).

7. A novel double rubber gasket injection mould according to any of claims 1 to 6, further comprising four guide posts (9), wherein the runner plate (1), the upper mould plate (2), the middle mould plate (3) and the lower mould plate (4) are all positioned by the guide posts (9).

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