CN221872985U - Injection mold for automobile decorative plate - Google Patents

Abstract

The utility model discloses an injection mold for an automobile decorative plate, and relates to the technical field of injection molds. The utility model comprises the following steps: the upper side of the mounting frame is fixedly connected with a bottom die, the upper side of the bottom die is in sliding fit with a lower die, an upper die is arranged on the upper side of the lower die, a material injection port is formed in the upper side of the upper die, and two mounting grooves are formed in the upper side of the upper die; the inner wall of the mounting groove slides and is elastically matched with a guide plate, and one side of the inner wall of the mounting groove is slidably matched with a cutting knife fixedly connected with the guide plate. According to the utility model, the guide plate is arranged, so that the upper die and the lower die can move upwards under the combined action of the hydraulic cylinder and the jacking cylinder when processing is completed, the guide wheel on one side of the guide plate is matched with the arc-shaped block in the guide shell, the guide plate drives the cutting knife to move towards the inside of the material injection opening, residual plastic is cut, the residual plastic is ejected through the ejector rod, the next processing is convenient, the notch is smooth, secondary trimming is not needed, and the manual labor amount is reduced.

Description

An injection mold for automobile decorative panel

Technical Field

The utility model belongs to the technical field of injection molds, and in particular relates to an injection mold for an automobile decorative plate.

Background Art

An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by an injection molding machine. After cooling and solidification, a molded product is obtained. Injection molds are required for processing in the production process of automotive decorative strips.

A Chinese patent with application number CN202222150513.3 discloses an injection mold for an automobile decorative strip, including an upper pressing plate. Through the arrangement of an upper pressing plate, an upper mold, a lower mold and a lower pressing plate, the upper pressing plate is a fixed end and the lower pressing plate is a movable end.

The above scheme separates the runner-shaped plastic product from the injection hole by moving the lower mold and the upper mold downward together, and then drives the lower mold to move downward to automatically separate the runner-shaped plastic product from the molded automobile decorative strip. However, in actual use, when the runner-shaped plastic product is separated from the automobile decorative strip under the action of gravity, it will cause pulling on the automobile decorative strip, which is prone to deformation. In addition, the runner-shaped plastic product is easily broken by pulling, which easily leads to uneven fractures, requiring manual trimming again, which requires a lot of manual labor.

In view of this, the present utility model is proposed.

Utility Model Content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an injection mold for an automobile decorative plate.

In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

An injection mold for an automobile decorative panel comprises: a mounting frame, a bottom mold is fixedly connected to the upper side of the mounting frame, a lower mold is slidably matched to the upper side of the bottom mold, an upper mold is mounted on the upper side of the lower mold, a material injection port is provided on the upper side of the upper mold, and two mounting grooves are provided on the upper side of the upper mold;

The inner wall of the mounting groove is slidably and elastically matched with a guide plate, one side of the inner wall of the mounting groove is slidably matched with a cutting knife fixedly connected to the guide plate, guide wheels are installed on opposite sides of the two guide plates, and two guide shells are fixedly connected to the upper side of the inner wall of the mounting frame, the inner wall of the guide shell is fixedly connected with an arc block matched with the guide wheel, and the upper side of the inner wall of the mounting frame is fixedly connected with a push rod matched with the injection port.

Optionally, two hydraulic cylinders are installed on the upper side of the mounting frame, and the output ends of the hydraulic cylinders are fixedly connected to the upper mold. By arranging the hydraulic cylinders, the upper mold is driven, which increases the convenience of mold closing.

Optionally, a plurality of trapezoidal grooves are provided on the lower side of the upper mold, and a plurality of trapezoidal blocks matching the trapezoidal grooves are fixedly connected to the upper side of the lower mold. The trapezoidal grooves and trapezoidal blocks are provided to guide the upper mold and the lower mold, thereby increasing the precision of mold closing.

Optionally, a water inlet pipe is fixedly connected to one side of the bottom mold, one end of the water inlet pipe is fixedly connected to a cooling pipe, and one side of the bottom mold is fixedly connected to a water outlet pipe fixedly connected to one end of the cooling pipe. The cooling pipe is provided to cool the injection material in the mold cavity so that it can be quickly cooled and formed.

Optionally, a plurality of guide rods are fixedly connected to the upper side of the bottom mold, and a plurality of guide grooves matching with the guide rods are provided on the lower side of the lower mold. The guide rods and guide grooves are provided to guide the matching between the bottom mold and the lower mold, thereby increasing the matching effect between the bottom mold and the lower mold.

Optionally, the two sides of the lower mold are fixedly connected with fixed plates, and the upper side of the mounting frame is equipped with a plurality of lifting cylinders fixedly connected with the fixed plates. The lifting cylinders are provided to drive the fixed plates, thereby driving the lower mold to rise, so that the injection-molded automobile decorative panel is separated from the bottom mold, which is convenient for demoulding.

After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

By setting the guide plate, when the processing is completed, the upper mold and the lower mold can be moved upward under the joint action of the hydraulic cylinder and the lifting cylinder. The guide wheel on one side of the guide plate cooperates with the arc block in the guide shell, so that the guide plate drives the cutting knife to move inside the injection port to cut the residual plastic and eject it through the ejector rod to facilitate the next processing. The incision is smooth and does not require secondary trimming, thereby reducing manual labor.

The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

FIG1 is a schematic diagram of a three-dimensional structure of an embodiment of the utility model;

FIG2 is a schematic diagram of a front cross-sectional structure of an embodiment of the utility model;

FIG3 is a schematic diagram of the structure of point A in FIG2;

FIG4 is a schematic diagram of the three-dimensional structure of the lower mold according to an embodiment of the utility model;

In the accompanying drawings, the components represented by the reference numerals are listed as follows:

1. Mounting frame; 2. Bottom mold; 3. Lower mold; 4. Upper mold; 5. Injection port; 6. Mounting groove; 7. Guide plate; 8. Cutting knife; 9. Guide wheel; 10. Guide shell; 11. Arc block; 12. Push rod; 13. Hydraulic cylinder; 14. Trapezoidal groove; 15. Trapezoidal block; 16. Water inlet pipe; 17. Cooling pipe; 18. Water outlet pipe; 19. Guide rod; 20. Guide groove; 21. Fixed plate; 22. Lifting cylinder.

It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments.

DETAILED DESCRIPTION

The utility model will now be further described in detail with reference to the accompanying drawings.

Referring to FIGS. 1-4 , an injection mold for an automobile decorative panel is provided in this embodiment, comprising: a mounting frame 1, a bottom mold 2 is fixedly connected to the upper side of the mounting frame 1, a lower mold 3 is slidably matched to the upper side of the bottom mold 2, an upper mold 4 is mounted on the upper side of the lower mold 3, a material injection port 5 is provided on the upper side of the upper mold 4, and two mounting grooves 6 are provided on the upper side of the upper mold 4;

The inner wall of the mounting groove 6 is slidably and elastically matched with a guide plate 7, one side of the inner wall of the mounting groove 6 is slidably matched with a cutting knife 8 fixedly connected to the guide plate 7, and guide wheels 9 are installed on the opposite sides of the two guide plates 7. Two guide shells 10 are fixedly connected to the upper side of the inner wall of the mounting frame 1, and an arc block 11 matched with the guide wheel 9 is fixedly connected to the inner wall of the guide shell 10, and a push rod 12 matched with the injection port 5 is fixedly connected to the upper side of the inner wall of the mounting frame 1.

One aspect of the application of this embodiment is as follows: when in use, under the action of the hydraulic cylinder 13, the upper mold 4 is driven to move downward, so that the upper mold 4 and the lower mold 3 are molded together, and the molten material is added through the injection port 5. After cooling and molding, under the joint action of the hydraulic cylinder 13 and the lifting cylinder 22, the upper mold 4 and the lower mold 3 are moved upward;

When the guide plate 7 enters the guide shell 10, the guide wheel 9 on one side of the guide plate 7 contacts the arc block 11 in the guide shell 10. Under the pressure of the arc block 11, the guide plate 7 drives the cutting knife 8 to cut the residual plastic in the injection port 5, so that the residual plastic is separated from the finished product, and then it is ejected by the ejector rod 12 for the next processing.

By setting the guide plate 7, when the processing is completed, the upper mold 4 and the lower mold 3 can be moved upward under the joint action of the hydraulic cylinder 13 and the lifting cylinder 22, and the guide wheel 9 on one side of the guide plate 7 cooperates with the arc block 11 in the guide shell 10, so that the guide plate 7 drives the cutting knife 8 to move inside the injection port 5 to cut the residual plastic and eject it through the ejector rod 12, which is convenient for the next processing, and the incision is smooth, without the need for secondary trimming, thereby reducing the amount of manual labor.

Two hydraulic cylinders 13 are installed on the upper side of the mounting frame 1 of the present embodiment, and the output ends of the hydraulic cylinders 13 are fixedly connected to the upper mold 4. The hydraulic cylinders 13 are provided to drive the upper mold 4, thereby increasing the convenience of mold closing.

In this embodiment, a plurality of trapezoidal grooves 14 are provided on the lower side of the upper mold 4, and a plurality of trapezoidal blocks 15 matching the trapezoidal grooves 14 are fixedly connected to the upper side of the lower mold 3; the trapezoidal grooves 14 and the trapezoidal blocks 15 are provided to guide the upper mold 4 and the lower mold 3, thereby increasing the accuracy of mold closing.

One side of the bottom mold 2 of the present embodiment is fixedly connected with a water inlet pipe 16, one end of the water inlet pipe 16 is fixedly connected with a cooling pipe 17, and one side of the bottom mold 2 is fixedly connected with a water outlet pipe 18 fixedly connected to one end of the cooling pipe 17; by providing the cooling pipe 17, the injection molding material in the mold cavity is cooled so that it can be quickly cooled and formed.

In this embodiment, a plurality of guide rods 19 are fixedly connected to the upper side of the bottom mold 2, and a plurality of guide grooves 20 cooperating with the guide rods 19 are provided on the lower side of the lower mold 3; by providing the guide rods 19 and the guide grooves 20, the cooperation between the bottom mold 2 and the lower mold 3 is guided, thereby increasing the cooperation effect between the bottom mold 2 and the lower mold 3.

In this embodiment, the lower mold 3 is fixedly connected to the two sides with fixed plates 21, and the upper side of the mounting frame 1 is equipped with a plurality of lifting cylinders 22 fixedly connected to the fixed plates 21; the lifting cylinders 22 are provided to drive the fixed plates 21, thereby driving the lower mold 3 to rise, so that the injection-molded automobile decorative panel is separated from the bottom mold 2, which is convenient for demolding.

The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims (6)

1. An injection mold for an automobile decorative panel, characterized in that it comprises: a mounting frame (1), a bottom mold (2) is fixedly connected to the upper side of the mounting frame (1), a lower mold (3) is slidably matched to the upper side of the bottom mold (2), an upper mold (4) is mounted on the upper side of the lower mold (3), an injection port (5) is provided on the upper side of the upper mold (4), and two mounting grooves (6) are provided on the upper side of the upper mold (4); The inner wall of the mounting groove (6) is slidably and elastically matched with a guide plate (7), one side of the inner wall of the mounting groove (6) is slidably matched with a cutting knife (8) fixedly connected to the guide plate (7), and the opposite sides of the two guide plates (7) are each provided with a guide wheel (9), the upper side of the inner wall of the mounting frame (1) is fixedly connected with two guide shells (10), the inner wall of the guide shell (10) is fixedly connected with an arc block (11) matched with the guide wheel (9), and the upper side of the inner wall of the mounting frame (1) is fixedly connected with a push rod (12) matched with the injection port (5). 2. An injection mold for automobile decorative panels according to claim 1, characterized in that two hydraulic cylinders (13) are installed on the upper side of the mounting frame (1), and the output ends of the hydraulic cylinders (13) are fixedly connected to the upper mold (4). 3. An injection mold for an automobile decorative panel according to claim 1, characterized in that a plurality of trapezoidal grooves (14) are provided on the lower side of the upper mold (4), and a plurality of trapezoidal blocks (15) matching the trapezoidal grooves (14) are fixedly connected to the upper side of the lower mold (3). 4. An injection mold for an automobile decorative panel according to claim 1, characterized in that a water inlet pipe (16) is fixedly connected to one side of the bottom mold (2), one end of the water inlet pipe (16) is fixedly connected to a cooling pipe (17), and a water outlet pipe (18) is fixedly connected to one end of the cooling pipe (17) on one side of the bottom mold (2). 5. An injection mold for automobile decorative panels according to claim 1, characterized in that a plurality of guide rods (19) are fixedly connected to the upper side of the bottom mold (2), and a plurality of guide grooves (20) matching with the guide rods (19) are provided on the lower side of the lower mold (3). 6. An injection mold for automobile decorative panels according to claim 1, characterized in that fixed plates (21) are fixedly connected to both sides of the lower mold (3), and a plurality of lifting cylinders (22) fixedly connected to the fixed plates (21) are installed on the upper side of the mounting frame (1).