Injection mold for automobile grille

Abstract

The utility model discloses an automobile grille injection mould, including rear mould, mould cavity, demoulding jack-prop, front mould and terrace mould, mould cavity is provided in the surface of rear mould, the inside of rear mould is provided with drive cavity, and the inside one side of drive cavity is equipped with cylinder, the output end of cylinder is equipped with the movable plate, and the movable plate is equipped with the demoulding jack-prop. A cavity is formed in the movable plate, the demolding ejection columns are fixed to the surface of the movable plate, one end of each demolding ejection column extends into the mold cavity, an air blowing channel is formed in each demolding ejection column, an air blowing opening is formed in one end of each demolding ejection column, and the front mold is arranged on one side of the rear mold. And the male die is arranged on the surface of the front die. According to the automobile grille demolding device, adhesion is avoided during demolding, the demolding efficiency is improved, meanwhile, the yield of automobile grilles is guaranteed, force is evenly applied to the automobile grilles, and the demolding effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is the injection mold of automobile grille. BACKGROUND

[0002] Automobile grille, commonly known as automobile mesh or water tank shield, is an important part of automobile, mainly located in the front of automobile, plays the role of protection, ventilation and beauty, and its main function is to provide air intake ventilation for water tank, engine and air conditioner, and prevent damage to the internal components of the vehicle caused by external objects during driving. The injection mold of automobile grille is a plastic mold for producing automobile grille. The injection mold forms the required grille shape after cooling by injecting molten plastic into the mold cavity. This mold is usually composed of front and rear molds.

[0003] When using the injection mold to produce automobile grille, the front mold and the rear mold need to be separated and demolded after the plastic is cooled and formed. However, the ejector pin used for demolding can only eject the automobile grille, and the end of the ejector pin is easy to stick to the automobile grille, resulting in incomplete demolding, affecting the demolding efficiency, and directly separating the two will also affect the yield of the automobile grille. In addition, uneven distribution of the ejector pin leads to uneven thrust and poor demolding effect, so improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide the injection mold of automobile grille to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: the injection mold of automobile grille, including rear mold, film cavity, demolding top column, front mold and convex mold, the film cavity is arranged on the surface of the rear mold, the inside of the rear mold is provided with a driving cavity, one side of the inside of the driving cavity is provided with a gas cylinder, the output end of the gas cylinder is provided with a movable plate, the inside of the movable plate is provided with a cavity, the demolding top column is fixed on the surface of the movable plate, one end of the demolding top column extends to the inside of the film cavity, the inside of the demolding top column is provided with a gas blowing channel, the gas blowing channel is communicated with the cavity, one end of the demolding top column is provided with a gas blowing port, the gas blowing port is communicated with the gas blowing channel, the front mold is arranged on one side of the rear mold, and the convex mold is arranged on the surface of the front mold.

[0006] Preferably, the corner position of the surface of the rear mold is provided with a positioning hole, the surface of the front mold at the position of the positioning hole is provided with a positioning column, and the positioning column and the positioning hole are matched with each other, so as to facilitate positioning when the rear mold and the front mold are closed.

[0007] Preferably, the outer wall of the side, away from the convex mold, of the front mold is provided with an injection port, and one end of the injection port is communicated with the injection channel in the inside of the rear mold.

[0008] Preferably, the outer side of the injection channel is provided with an electric heating wire, so that the residual plastic in the injection channel is melted, and the plastic is prevented from solidifying and blocking the injection channel.

[0009] Preferably, the rear mold on one side of the film cavity is internally provided with a first cooling cavity, one end of the first cooling cavity is provided with a first liquid inlet, and the other end of the first cooling cavity is provided with a first liquid outlet, so as to facilitate cooling and shaping of the plastic in the film cavity from the rear.

[0010] Preferably, the front mold on one side of the convex mold is internally provided with a second cooling cavity, one end of the second cooling cavity is provided with a second liquid outlet, and the other end of the second cooling cavity is provided with a second liquid inlet, so as to facilitate cooling and shaping of the plastic in the film cavity from the front.

[0011] Preferably, the inside of the blowing port is adhered with a diaphragm, and the inside of the diaphragm is provided with a cross opening, so as to facilitate sealing of the blowing port when not blowing.

[0012] Preferably, the outer wall on one side of the movable plate is respectively provided with an air inlet pipe and an air outlet pipe, and the air inlet pipe and the air outlet pipe are both in communication with the cavity.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] After the automobile grille is cooled and formed, the front mold and the rear mold are controlled to be separated, the cylinder is controlled to drive the movable plate to translate, the movable plate drives the stripping ejector post to translate to make the automobile grille be ejected from the film cavity, since the stripping ejector post is provided with multiple groups and is uniformly distributed, the force applied to the automobile grille is uniform, the stripping effect is good, at the same time, the gas is filled into the cavity through the air inlet pipe, the gas enters the blowing channel and is blown out from the blowing port, the cross opening in the diaphragm is opened when blowing, so that the gas is blown out, the automobile grille is separated from the stripping ejector post by blowing, and the automobile grille is not adhered, so that the stripping is more thorough, the stripping efficiency is improved, and the yield of the automobile grille is guaranteed.

[0015] The electric heating wire is powered to heat, the residual plastic in the injection channel is melted, and the residual plastic in the injection channel is blown out through blowing of the injection port, so that the injection channel is self-cleaned, and blocking is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a sectional view structure schematic diagram of the utility model;

[0017] Figure 2 It is a rear mold enlarged structure schematic diagram of the utility model;

[0018] Figure 3 It is a stripping ejector post sectional view enlarged structure schematic diagram of the utility model;

[0019] Figure 4 It is the front mold amplification structure schematic view of the utility model;

[0020] Figure 5 It is the rear mold top view amplification structure schematic view of the utility model.

[0021] In the figure: 1, rear mold; 2, membrane cavity; 3, drive cavity; 4, air cylinder; 5, movable plate; 501, cavity; 502, air inlet pipe; 503, air outlet pipe; 6, demolding top column; 601, air blowing passage; 7, front mold; 8, projection mold; 9, injection port; 10, injection passage; 11, electric heating wire; 12, first liquid inlet; 13, first cooling cavity; 14, first liquid outlet; 15, air blowing port; 16, diaphragm; 17, second liquid outlet; 18, second cooling cavity; 19, positioning column; 20, second liquid inlet; 21, positioning hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model protection.

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model protection.

[0024] Please refer to Figures 1-5 An embodiment provided by the utility model: the injection mold of automobile grille, including rear mold 1, membrane cavity 2, demolding top column 6, front mold 7 and projection mold 8, membrane cavity 2 is arranged on the surface of rear mold 1, the inside of rear mold 1 is provided with drive cavity 3, and one side inside drive cavity 3 is installed with air cylinder 4, the output end of air cylinder 4 is installed with movable plate 5, and the inside of movable plate 5 is provided with cavity 501, demolding top column 6 is all fixed on the surface of movable plate 5, one end of demolding top column 6 extends to the inside of membrane cavity 2, and demolding top column 6 is provided with air blowing passage 601 in the inside, and air blowing passage 601 is communicated with cavity 501, one end of demolding top column 6 is provided with air blowing port 15, and air blowing port 15 is communicated with air blowing passage 601;

[0025] The front mold 7 is arranged on one side of the rear mold 1, and the male mold 8 is arranged on the surface of the front mold 7;

[0026] Specifically, the rear mold 1 and the front mold 7 are closed, so that the positioning hole 21 is clamped into the positioning column 19, and then the plastic is injected into the injection channel 10 through the injection port 9, the plastic enters the forming cavity of the automobile grille formed by the male mold 8 and the film cavity 2 through the heating wire 11, the cooling liquid is delivered into the first cooling cavity 13 through the first liquid inlet 12, and the cooling liquid is delivered into the second cooling cavity 18 through the second liquid inlet 20, so that the automobile grille in the forming cavity is cooled and shaped;

[0027] The positioning hole 21 is arranged at the corner position of the surface of the rear mold 1, and the positioning column 19 is arranged on the surface of the front mold 7 at the position of the positioning hole 21, and the positioning column 19 and the positioning hole 21 are matched with each other;

[0028] The injection port 9 is arranged on the outer wall of the front mold 7 away from the male mold 8, and one end of the injection port 9 is in communication with the injection channel 10 in the rear mold 1;

[0029] The heating wire 11 is mounted on the outer side of the injection channel 10;

[0030] Specifically, the heating wire 11 is powered and heated, so that the residual plastic in the injection channel 10 is melted, and then the injection channel 10 is blown through the injection port 9, so that the residual plastic in the injection channel 10 is blown out, thereby facilitating self-cleaning of the injection channel 10 and preventing blockage;

[0031] The first cooling cavity 13 is arranged in the rear mold 1 on one side of the film cavity 2, one end of the first cooling cavity 13 is provided with the first liquid inlet 12, and the other end of the first cooling cavity 13 is provided with the first liquid outlet 14;

[0032] The second cooling cavity 18 is arranged in the front mold 7 on one side of the male mold 8, one end of the second cooling cavity 18 is provided with the second liquid outlet 17, and the other end of the second cooling cavity 18 is provided with the second liquid inlet 20;

[0033] The diaphragm 16 is adhered in the interior of the blowing port 15, and the cross-shaped opening is arranged in the interior of the diaphragm 16;

[0034] The air inlet pipe 502 and the air outlet pipe 503 are respectively mounted on the outer wall of one side of the movable plate 5, and the air inlet pipe 502 and the air outlet pipe 503 are in communication with the cavity 501;

[0035] Specifically, the front mold 7 is controlled to be separated from the rear mold 1, then the cylinder 4 is controlled to drive the movable plate 5 to translate, the movable plate 5 drives the demolding top pillar 6 to translate to push the automobile grille out of the film cavity 2, since the demolding top pillar 6 is provided with multiple groups and is uniformly distributed, the automobile grille is uniformly forced, the demolding effect is good, at the same time, the gas is filled into the cavity 501 through the air inlet pipe 502, the gas enters the blowing channel 601 and is blown out from the blowing port 15, the cross-shaped opening in the diaphragm 16 is opened when blowing, so that the gas is blown out, the automobile grille is separated from the demolding top pillar 6 by blowing, and the automobile grille is not adhered, the demolding is more complete, so that the demolding efficiency is improved, and the yield of the automobile grille is ensured.

[0036] In use, first, the rear mold 1 and the front mold 7 are closed, so that the positioning hole 21 is clamped into the positioning column 19, second, the plastic is injected into the injection molding channel 10 through the injection port 9, the plastic enters the automobile grille forming cavity formed by the convex mold 8 and the film cavity 2 through the electric heating wire 11, the cooling liquid is delivered into the first cooling cavity 13 through the first liquid inlet 12, and the cooling liquid is delivered into the second cooling cavity 18 through the second liquid inlet 20, so that the automobile grille in the forming cavity is cooled and shaped, then, after the automobile grille is cooled and shaped, the front mold 7 is controlled to be separated from the rear mold 1, then the cylinder 4 is controlled to drive the movable plate 5 to translate, the movable plate 5 drives the demolding top pillar 6 to translate to push the automobile grille out of the film cavity 2, since the demolding top pillar 6 is provided with multiple groups and is uniformly distributed, the automobile grille is uniformly forced, the demolding effect is good, at the same time, the gas is filled into the cavity 501 through the air inlet pipe 502, the gas enters the blowing channel 601 and is blown out from the blowing port 15, the cross-shaped opening in the diaphragm 16 is opened when blowing, so that the gas is blown out, the automobile grille is separated from the demolding top pillar 6 by blowing, and the automobile grille is not adhered, the demolding is more complete, so that the demolding efficiency is improved, and the yield of the automobile grille is ensured, and the electric heating wire 11 is electrified to heat, so that the residual plastic in the injection molding channel 10 is melted, and then the injection molding channel 10 is blown with air through the injection port 9, so that the residual plastic in the injection molding channel 10 is blown out, thereby facilitating self-cleaning of the injection molding channel 10 and preventing blockage.

[0037] Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

Claims

1. Injection mold for a car grille, characterized in that, The utility model provides a film cavity (2) is arranged on the surface of back mould (1), the inside of back mould (1) is provided with drive cavity (3), and one side of drive cavity (3) inside is all installed with pneumatic cylinder (4), the output end of pneumatic cylinder (4) is installed with movable plate (5), and the inside of movable plate (5) is provided with cavity (501), the surface of movable plate (5) is all fixed with demoulding top pillar (6), and one end of demoulding top pillar (6) extends to the inside of film cavity (2), and the inside of demoulding top pillar (6) is provided with blow channel (601), and blow channel (601) is communicated with cavity (501), one end of demoulding top pillar (6) is provided with blow -off port (15), and blow -off port (15) is communicated with blow channel (601), and front mould (7) is arranged on one side of back mould (1), and convex mould (8) is arranged on the surface of front mould (7).

2. The injection mold for an automotive grille of claim 1, wherein: The corner position of the surface of back mould (1) is provided with positioning hole (21), and the surface of front mould (7) at the position of positioning hole (21) is provided with positioning column (19), and positioning column (19) and positioning hole (21) are matched with each other.

3. The injection mold for an automotive grille of claim 1, wherein: The outer wall of the side, away from convex mould (8) of front mould (7) is provided with injection port (9), and one end of injection port (9) is communicated with injection channel (10) in the inside of back mould (1).

4. The injection mold for an automotive grille of claim 3, wherein: The outside of injection channel (10) is all installed with electric heating wire (11).

5. The injection mold for an automotive grille of claim 1, wherein: The inside of back mould (1) on one side of film cavity (2) is provided with first cooling cavity (13), and one end of first cooling cavity (13) is provided with first liquid inlet (12), and the other end of first cooling cavity (13) is provided with first liquid outlet (14).

6. The injection mold for an automotive grille of claim 1, wherein: The inside of front mould (7) on one side of convex mould (8) is provided with second cooling cavity (18), and one end of second cooling cavity (18) is provided with second liquid outlet (17), and the other end of second cooling cavity (18) is provided with second liquid inlet (20).

7. The injection mold for an automotive grille of claim 1, wherein: The inside of blow -off port (15) is adhered with diaphragm (16), and the inside of diaphragm (16) is provided with cross opening.

8. The injection mold for an automotive grille of claim 1, wherein: The outer wall of one side of movable plate (5) is respectively installed with air inlet pipe (502) and air outlet pipe (503), and air inlet pipe (502) and air outlet pipe (503) are all communicated with cavity (501).

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