Double-layer injection mold for forming automotive upholstery

Abstract

The double-layer injection mold comprises an upper mold, a middle mold and a lower mold, first injection molding cavities are formed in the two ends of the middle mold, a second injection molding cavity is formed in the end face, facing the middle mold, of the upper mold, and a third injection molding cavity is formed in the end face, facing the middle mold, of the lower mold. After the middle mold moves downwards, the first injection molding cavity and the second injection molding cavity are combined to form a first mold cavity, after the middle mold moves downwards, the first injection molding cavity and the third injection molding cavity are combined to form a second mold cavity, a base is installed on the lower mold, injection molding pipes communicated with the injection molding holes are installed on the upper mold and the lower mold, and electric sliding tables for driving the middle mold to move up and down are arranged on the two sides of the base. The injection molding machine is simple in structure, injection molding of products can be carried out in the mold taking process, production of the products cannot be stopped in the middle, efficiency is improved, and the electric sliding table can be used in cooperation with the electromagnetic valve, so that injection molding liquid can enter the injection molding machine alternately up and down.

Description

TECHNICAL FIELD

[0001] The utility model relates to double -layer injection mold technical field, concretely relates to a double -layer injection mold for automobile interior part forming. BACKGROUND

[0002] Mold, the various moulds and tools of industrial production are used to injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping etc. method obtains the required product, and double -layer injection mold can be through adopting two different plastics to injection molding into a product, when producing some automobile parts etc., a double -layer injection mold is often used. The existing double -layer injection mold stays for a period of time when opening the mold, and the injection molding of the product cannot be carried out in this period of time, thereby affecting the work efficiency. SUMMARY

[0003] The utility model provides a double -layer injection mold for automobile interior part forming, the second mold cavity will open the mold after the middle mold moves upwards, but the first mold cavity will close, so that the injection molding of the product can still be carried out in the mold removal process, to solve the problem raised in the above background art.

[0004] The utility model is through following technical scheme to realize: a double -layer injection mold for automobile interior part forming, including upper die, middle die and lower die, upper die, middle die and lower die are vertically distributed in proper order, both ends of middle die are equipped with first injection cavity, the end face of upper die towards middle die is equipped with second injection cavity, the end face of lower die towards middle die is equipped with third injection cavity, after middle die moves upwards, first injection cavity and second injection cavity combination form first mold cavity, after middle die moves downwards, first injection cavity and third injection cavity combination form second mold cavity, the base is installed on lower die, the injection pipe that is communicated with injection hole is installed on upper die and lower die, the both sides of base are equipped with the electric sliding platform that drives middle die to move up and down.

[0005] As preferred technical scheme, the recess is equipped on the base, the through -hole that is communicated with the injection hole on lower die is equipped at the center of recess, the passageway that is communicated with recess is equipped on one side of base, and the injection pipe below passes through passageway and through -hole and is communicated with the injection hole on lower die.

[0006] As preferred technical scheme, the electromagnetic valve that controls the flow of internal liquid is installed on the exposed end of injection pipe, and the heating sheet is installed close to electromagnetic valve on injection pipe, and the heating sheet is connected with temperature controller through wire.

[0007] As a preferred technical scheme, the four corners of the upper die, the middle die and the lower die are provided with positioning holes, the base is provided with positioning columns opposite to the positioning holes, one end of the positioning columns passes through the positioning holes, the two sides of the upper die and the lower die are provided with first screw holes opposite to the positioning holes, the outer side of the positioning column is provided with second screw holes opposite to the first screw holes, and the opposite first screw holes and second screw holes are threadedly connected with bolts.

[0008] As a preferred technical scheme, the moving platform of the electric sliding table is provided with a fixing plate, and the fixing plate is fixed to the middle die through screws.

[0009] As a preferred technical scheme, the two sides of the base are protruded to form mounting portions, and one end of the electric sliding table is mounted on the mounting portions.

[0010] The utility model discloses the beneficial effect is: the utility model discloses simple structure, through electric sliding table can drive the up and down movement of middle die, after the middle die moves upwards, the second cavity will open mould, but the first cavity will close, contrarily, then the first cavity will open mould, and the second cavity closes, make the mould process still can carry out the injection molding of product, and the production of product does not stop in the middle, increase the efficiency, and the electric sliding table will cooperate with solenoid valve and use, make the liquid of injection molding can go up and down alternately. ACCURATE DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0012] Figure 1 It is the whole structure schematic diagram of the utility model;

[0013] Figure 2 It is the bottom view of the utility model;

[0014] Figure 3 It is the structure schematic diagram of the utility model after removing the upper die.

[0015] Wherein, 1, upper die;2, middle die;3, lower die;4, base;5, mounting portion;6, electric sliding table;7, fixed plate;8, positioning column;9, bolt;10, injection pipe;11, heating sheet;12, solenoid valve;13, recess;14, through hole. Specific implementation

[0016] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are intended to explain the present application, and should not be understood as limiting the present application.

[0017] All features disclosed in this specification, or all steps of any methods or processes disclosed, may be combined in any combination, except combinations where at least some of such features and / or steps are mutually exclusive.

[0018] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any equivalent or similar feature, or any feature with the same or similar function. In other words, each feature disclosed in this specification is one example of a range of equivalent or similar features, unless stated otherwise.

[0019] As shown in Figure 1 , Figure 2 and Figure 3 , the double-layer injection mold for forming an automotive interior part of the present application comprises an upper mold 1, a middle mold 2 and a lower mold 3, the upper mold 1, the middle mold 2 and the lower mold 3 are vertically distributed in sequence, both ends of the middle mold 2 are provided with first injection cavities, the end face of the upper mold 1 facing the middle mold 2 is provided with a second injection cavity, and the end face of the lower mold 3 facing the middle mold 2 is provided with a third injection cavity. After the middle mold 2 moves upward, the first injection cavity and the second injection cavity combine to form a first mold cavity. After the middle mold 2 moves downward, the first injection cavity and the third injection cavity combine to form a second mold cavity. The lower mold 3 is installed with a base 4, and the upper mold 1 and the lower mold 3 are both installed with an injection pipe 10 communicating with the injection hole. The base 4 is provided with an electric sliding table 6 on both sides to drive the middle mold 2 to move up and down.

[0020] In this embodiment, the base 4 is provided with a groove 13, the center of the groove 13 is provided with a through hole 14 communicating with the injection hole on the lower mold 3, one side of the base 4 is provided with a channel communicating with the groove 13, and the lower injection pipe 10 passes through the channel and the through hole 14 to communicate with the injection hole on the lower mold 3.

[0021] In this embodiment, the exposed end of the injection pipe 10 is installed with an electromagnetic valve 12 to control the flow of the internal liquid, and the injection pipe 10 is installed with a heating sheet 11 near the electromagnetic valve 12. The heating sheet 11 is connected with a temperature controller through a wire. The injection pipe can be heated by the heating sheet, so that the internal solution can be heated, avoiding the condensation in the middle, to ensure the efficiency of the solution flow.

[0022] In the embodiment, positioning holes are arranged on four corners of the upper die 1, the middle die 2 and the lower die 3, positioning columns 8 are arranged on the base 4 opposite to the positioning holes, one end of the positioning column 8 passes through the positioning hole, first screw holes are arranged on the two sides of the upper die 1 and the lower die 3 opposite to the positioning holes, second screw holes are arranged on the outer side of the positioning column 8 opposite to the first screw holes, and bolts 9 are threadedly connected in the opposite first screw holes and second screw holes.

[0023] In the embodiment, the fixed plates 7 are arranged on the moving platforms of the electric sliding tables 6, and the fixed plates 7 are fixed on the middle die 2 through screws; after the screws are unscrewed, the middle die can be moved automatically, and after the bolts are taken out from the second screw holes, the upper die, the middle die and the lower die can be taken out upward along the positioning columns, which facilitates disassembly.

[0024] In the embodiment, the two sides of the base 4 are protruded to form the mounting portions 5, and one end of the electric sliding table 6 is mounted on the mounting portion 5.

[0025] In use, the electric sliding table is started to make the moving platforms of the electric sliding tables move up and down continuously; when the moving platforms rise, the middle die can be driven to move upward until the middle die is attached to the upper die to seal the first mold cavity; at this time, the electromagnetic valve on the upper injection pipe is opened to make the solution flow into the first mold cavity through the injection hole, and the second mold cavity is in an open state, and the product in the second mold cavity can be taken out; after the product is taken out, the middle die can be driven to descend by the electric sliding table to make the first mold cavity open and the second mold cavity close, the electromagnetic valve on the upper side is closed, the electromagnetic valve on the lower side is opened, the solution flows into the second mold cavity through the lower injection pipe, and the production of the product is not stopped in the middle, and the efficiency is increased.

[0026] The above merely illustrates the specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any change or replacement without creative labor should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be limited by the protection scope defined in the claims.

Claims

1. A double-layer injection mold for forming an automotive interior part, characterized by: The utility model provides a kind of injection molding machine, including upper die (1), middle die (2) and lower die (3), the upper die (1), middle die (2) and lower die (3) are vertically distributed in turn, both ends of middle die (2) are equipped with first injection cavity, the end surface of upper die (1) towards middle die (2) is equipped with second injection cavity, the end surface of lower die (3) towards middle die (2) is equipped with third injection cavity, after middle die (2) moves upwards, first injection cavity and second injection cavity combination form first mould cavity, after middle die (2) moves downwards, first injection cavity and third injection cavity combination form second mould cavity, base (4) is installed on lower die (3), and injection pipe (10) is installed on upper die (1) and lower die (3) and communicated with injection hole, and both sides of base (4) are provided with electric sliding table (6) for driving middle die (2) to move up and down.

2. The double injection mold for molding an automotive interior part according to claim 1, characterized in that: Groove (13) is equipped on base (4), and through hole (14) communicated with injection hole on lower die (3) is equipped in the center of groove (13), one side of base (4) is equipped with passageway communicated with groove (13), and lower injection pipe (10) passes through passageway and through hole (14) and is communicated with injection hole on lower die (3).

3. The double injection mold for molding an automotive interior part according to claim 1, characterized in that: The end of injection pipe (10) exposed is equipped with solenoid valve (12) for controlling the flow of internal liquid, and heating sheet (11) is installed close to solenoid valve (12) on injection pipe (10), and heating sheet (11) is connected with temperature controller by wire.

4. The double injection mold for molding an automotive interior part according to claim 1, characterized in that: Positioning hole is equipped on the four corners of upper die (1), middle die (2) and lower die (3), and positioning column (8) is installed on the positioning hole of base (4), one end of positioning column (8) passes through positioning hole, and first screw hole communicated with positioning hole is equipped on both sides of upper die (1) and lower die (3) and opposite the positioning hole, second screw hole is equipped on the outside of positioning column (8) and opposite the first screw hole, and bolt (9) is screw-connected in the first screw hole and the second screw hole.

5. The double injection mold for molding an automotive interior part according to claim 1, characterized in that: Fixed plate (7) is installed on the moving platform of electric sliding table (6), and fixed plate (7) is fixed on middle die (2) by screw.

6. The double injection mold for molding an automotive interior part according to claim 1, wherein: Both sides of base (4) are projected to form mounting portion (5), and one end of electric sliding table (6) is installed on mounting portion (5).

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