An injection molding device for an automobile trim part

Abstract

The utility model relates to injection molding machine technical field, concretely is a kind of injection molding device for automobile trim part, it has the characteristics of collecting material and reducing workload, including bottom plate, the upper surface of bottom plate is fixedly connected with support table, the upper surface of support table is fixedly connected with injection liquid tank;Left mould plate, the inside fixed connection of left mould plate has hydraulic rod, the right end fixed connection of hydraulic rod has right mould plate, the inside fixed connection of right mould plate has telescopic link, the left end fixed connection of telescopic link has push plate, and the collecting device for collecting material is installed between push plate and right mould plate, through-hole is equipped on collecting device, and through-hole and telescopic link are set as through, and the side of collecting device is provided with support plate, and the other end of support plate is arranged at the side of right mould plate;The side wall of left mould plate is equipped with the slot, and the one end of slot and collecting device is set as plug connection.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to an injection molding device for automotive decorative parts. Background Technology

[0002] Automotive trim parts are generally made of plastic. Their molding process mainly relies on the high-temperature molten plastic injected by an injection molding machine into the mold. After cooling, the mold is formed, completing the injection molding process. However, water vapor may appear in the molten injection liquid, affecting the quality of the injection molded parts. For example, Chinese patent discloses "An Injection Molding Device for Automotive Trim Parts" (application number: 202321955116.1). This device uses a limiting component installed inside the barrel to rotate, and the injection material is supplied with a spiral flow through a spiral channel formed on the surface of the spiral plate. This significantly extends the retention time of the injection material and the drying time. The hot air from the hot air blower is converted into the mechanical energy of the spiral plate rotation by a converter, thereby increasing the kinetic energy of the injection material on the surface of the spiral plate and increasing the contact area with the hot air, thus enhancing the drying effect of the device. However, water vapor may still appear in the molten injection liquid, which can still affect the quality of the injection molded parts.

[0003] Chinese Utility Model Publication No. CN221834845U discloses an injection molding machine for automotive decorative parts, which includes: a support platform fixedly connected to the upper surface of a base plate, an injection liquid tank fixedly connected to the upper surface of the support platform, an exhaust fan fixedly connected to the upper surface of the support platform, an exhaust pipe fixedly connected to the output end of the exhaust fan, and an end of the exhaust pipe away from the exhaust fan fixedly connected to the upper surface of the injection liquid tank; a hydraulic rod fixedly connected inside a left mold plate, a right mold plate fixedly connected to the right end of the hydraulic rod, a telescopic rod fixedly connected inside the right mold plate, and a push plate fixedly connected to the left end of the telescopic rod.

[0004] The device effectively extracts water vapor, but during the molding process, some material passes through the gap between the push plate and the left mold plate and moves to the other side of the push plate when the push plate moves outside the left mold plate. This material falls onto the device, increasing the difficulty of cleaning later. Furthermore, the device lacks a mechanism to restore the push plate to its original position, requiring workers to manually push the push plate away from the right mold plate to extend the telescopic rod to its original length before it can be used again, thus increasing the workload of the workers. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an injection molding device for automotive decorative parts, which features material collection and reduced workload.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an injection molding device for automotive decorative parts, comprising a base plate, a support platform fixedly connected to the upper surface of the base plate, and an injection liquid tank fixedly connected to the upper surface of the support platform; a left mold plate, a hydraulic rod fixedly connected inside the left mold plate, a right mold plate fixedly connected to the right end of the hydraulic rod, a telescopic rod fixedly connected inside the right mold plate, a push plate fixedly connected to the left end of the telescopic rod, a collection device for collecting materials installed between the push plate and the right mold plate, the collection device having a through hole that penetrates the telescopic rod, a support plate on one side of the collection device, and the other end of the support plate on one side of the right mold plate; a slot on the side wall of the left mold plate, the slot being inserted into one end of the collection device.

[0009] Furthermore, the collection device includes a plug-in plate, one end of which is plugged into a slot, and a collection cover is installed through the lower part of the plug-in plate.

[0010] Furthermore, the collection cover is provided with fixing plates on both sides, and a threaded hole is provided in the middle of the fixing plate, and a bolt is installed in the threaded hole.

[0011] Furthermore, a sealing plate is installed through the lower part of the bolt, and the upper part of the sealing plate is tightly fitted to the lower part of the collection cover.

[0012] Furthermore, the right mold plate is equipped with an electric push rod through it, and the middle of the plug plate is provided with a through hole, which corresponds to the electric push rod. The diameter of the through hole is larger than the diameter of the telescopic end of the electric push rod.

[0013] Preferably, an exhaust fan is fixedly connected to the upper surface of the support platform, an exhaust pipe is fixedly connected to the output end of the exhaust fan, and the end of the exhaust pipe away from the exhaust fan is fixedly connected to the upper surface of the injection molding liquid tank.

[0014] Preferably, the injection molding liquid tank and the left mold plate are connected through an injection molding tube, the injection molding tube is fixedly connected to the lower surface of the injection molding liquid tank, and a booster pump is fixedly connected to the side surface of the injection molding tube, the booster pump being located between the left mold plate and the injection molding liquid tank.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides an injection molding device for automotive decorative parts, which has the following advantages:

[0017] This automotive trim injection molding device receives incoming materials by inserting one end of a connector plate into the slot of the left mold plate and collects them into a collection hood, preventing materials from falling onto the device and reducing the difficulty of subsequent cleaning. Secondly, by activating the electric push rod, the extension of the electric push rod can be raised to push the push plate back to its original position, reducing the workload of the workers. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0020] Figure 3 This is an enlarged structural diagram of the push plate, collecting device, and right mold plate of this utility model.

[0021] Figure 4 This utility model Figure 1 The diagram shows a partially enlarged structural schematic at point A.

[0022] In the diagram: 1. Base plate; 2. Injection liquid tank; 3. Left mold plate; 4. Hydraulic rod; 5. Right mold plate; 6. Telescopic rod; 7. Push plate; 8. Slot; 9. Connecting plate; 10. Collection cover; 11. Sealing plate; 12. Electric push rod; 13. Exhaust fan; 14. Exhaust pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the prior art, an injection molding device for automotive trim parts includes a base plate 1, a support platform fixedly connected to the upper surface of the base plate 1, and an injection liquid tank 2 fixedly connected to the upper surface of the support platform; a left mold plate 3, a hydraulic rod 4 fixedly connected inside the left mold plate 3, a right mold plate 5 fixedly connected to the right end of the hydraulic rod 4, a telescopic rod 6 fixedly connected inside the right mold plate 5, a push plate 7 fixedly connected to the left end of the telescopic rod 6, an exhaust fan 13 fixedly connected to the upper surface of the support platform, and an exhaust pipe 14 fixedly connected to the output end of the exhaust fan 13. The end of the air pipe 14 away from the exhaust fan 13 is fixedly connected to the upper surface of the injection molding liquid tank 2. When the exhaust fan 13 is started, the water vapor in the injection molding liquid tank 2 is drawn away through the exhaust pipe 14. The injection molding liquid tank 2 and the left mold plate 3 are connected through the injection pipe. The injection pipe is fixedly connected to the lower surface of the injection molding liquid tank 2. A booster pump is fixedly connected to the side surface of the injection pipe. The booster pump is located between the left mold plate 3 and the injection molding liquid tank 2. The booster pump can inject the material in the injection molding liquid tank 2 into the left mold plate 3 through the injection pipe. This is the prior art and will not be elaborated on here.

[0025] Please see Figure 1-3 This utility model discloses an injection molding device for automotive decorative parts. A material collection device is installed between the push plate 7 and the right mold plate 5. The push plate 7 extends into the left mold to receive the material. The material squeezes the push plate 7 and pushes it towards the right mold plate 5. The collection device is provided with a through hole, and the through hole and the telescopic rod 6 are arranged in a through-hole configuration. When the push plate 7 moves, it drives the telescopic rod 6 to retract.

[0026] A support plate is provided on one side of the collecting device, and the other end of the support plate is provided on one side of the right mold plate 5, fixing the collecting device to one side of the right mold plate 5. The side wall of the left mold plate 3 is provided with a slot 8, and the slot 8 and one end of the collecting device are inserted into each other. When the hydraulic rod 4 retracts, it drives the right mold plate 5 to move closer to the left mold plate 3. When it moves to the designated position, one end of the collecting device is inserted into the slot 8 of the left mold plate 3, sealing the left mold plate 3. This allows the material passing through the gap between the push plate 7 and the left mold plate 3 to be pushed into the collecting device by the push plate 7, so that it will not fall into other positions of the device, thus playing the role of collecting materials.

[0027] The collection device includes a plug-in plate 9, one end of which is plugged into a slot 8. The plug-in plate 9 is inserted into the slot 8, and the material moves to the lower part of the plug-in plate 9. A collection cover 10 is installed through the lower part of the plug-in plate 9, and the material falls from the lower part of the plug-in plate 9 into the collection cover 10 for collection.

[0028] The collection cover 10 has fixing plates on both sides, and a threaded hole in the middle of the fixing plate. A bolt is installed in the threaded hole, and a sealing plate 11 is installed through the lower part of the bolt. The upper part of the sealing plate 11 is tightly fitted to the lower part of the collection cover 10. The sealing plate 11 is sealed and installed in the lower part of the collection cover 10 by the threaded connection of the bolt and the threaded hole, thus blocking the collection cover 10. During cleaning, a collection box is placed in the lower part of the collection cover 10, the sealing plate 11 is removed, and the material in the collection cover 10 can fall into the collection box.

[0029] An electric push rod 12 is installed through the right mold plate 5. A through hole is provided in the middle of the plug plate 9, and the through hole corresponds to the electric push rod 12. The diameter of the through hole is larger than the diameter of the telescopic end of the electric push rod 12. After processing one piece of material, the electric push rod 12 is activated. The electric push rod 12 extends, passes through the through hole, and pushes the push plate 7 to move. When the electric push rod 12 extends to its maximum length, the push plate 7 is pushed back to its original position, and at the same time, the telescopic rod 6 extends.

[0030] In summary, when using this automotive trim injection molding device, the hydraulic rod 4 is activated, causing it to retract and push the right mold plate 5 closer to the left mold plate 3. When the push plate 7 enters the left mold plate 3 and the insert plate 9 is inserted into the slot 8 of the left mold plate 3, it moves into place. The booster pump is then activated, injecting the material in the injection tank 2 into the mold cavity of the left mold plate 3 through the injection tube, pushing the push plate 7 to move and compressing the telescopic rod 6. Some material passes through the gap between the push plate 7 and the left mold plate 3, moves to the lower part of the insert, and then falls into the collection cover 10 for collection. After molding is complete, the hydraulic rod 4 is activated to extend, pushing the right mold plate 5 and the push plate 7 away from the left mold plate 3. Then, the electric push rod 12 is activated, extending through the through hole and pushing the push plate 7 to move. When the electric push rod 12 extends to its maximum length, the push plate 7 is pushed back to its original position, simultaneously causing the telescopic rod 6 to extend.

[0031] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for automotive decorative parts, comprising a base plate (1), a support platform fixedly connected to the upper surface of the base plate (1), and an injection liquid tank (2) fixedly connected to the upper surface of the support platform; a left mold plate (3), a hydraulic rod (4) fixedly connected inside the left mold plate (3), a right mold plate (5) fixedly connected to the right end of the hydraulic rod (4), a telescopic rod (6) fixedly connected inside the right mold plate (5), and a push plate (7) fixedly connected to the left end of the telescopic rod (6), characterized in that: A material collection device is installed between the push plate (7) and the right mold plate (5). The material collection device has a through hole, and the through hole and the telescopic rod (6) are connected through each other. A support plate is provided on one side of the material collection device, and the other end of the support plate is provided on one side of the right mold plate (5). The side wall of the left mold plate (3) is provided with a slot (8), and the slot (8) and one end of the material collection device are connected in an insert manner.

2. The automobile trim injection molding device according to claim 1, characterized in that: The collection device includes a plug plate (9), one end of which is plugged into a slot (8), and a collection cover (10) is installed through the lower part of the plug plate (9).

3. The automobile trim injection molding device according to claim 2, characterized in that: The collection cover (10) has fixing plates on both sides, and a threaded hole is provided in the middle of the fixing plate, and a bolt is installed in the threaded hole.

4. The automotive trim injection molding device according to claim 3, characterized in that: A sealing plate (11) is installed through the lower part of the bolt, and the upper part of the sealing plate (11) is tightly attached to the lower part of the collection cover (10).

5. The automobile trim injection molding apparatus according to claim 4, wherein: The right mold plate (5) is equipped with an electric push rod (12) through it. The middle part of the plug plate (9) is provided with a through hole, and the through hole corresponds to the electric push rod (12). The diameter of the through hole is larger than the diameter of the telescopic end of the electric push rod (12).

6. The automobile trim injection molding apparatus according to claim 1, wherein: An exhaust fan (13) is fixedly connected to the upper surface of the support platform. An exhaust pipe (14) is fixedly connected to the output end of the exhaust fan (13). The end of the exhaust pipe (14) away from the exhaust fan (13) is fixedly connected to the upper surface of the injection molding liquid tank (2).

7. The automobile trim injection molding device of claim 5, wherein: The injection molding liquid tank (2) and the left mold plate (3) are connected through an injection molding tube. The injection molding tube is fixedly connected to the lower surface of the injection molding liquid tank (2). A booster pump is fixedly connected to the side surface of the injection molding tube. The booster pump is located between the left mold plate (3) and the injection molding liquid tank (2).

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