Automobile lampshade injection mold convenient to demold

Through the cooperation of electric push rods and striking rubber heads, combined with conveyor belts and servo motors, automatic demoulding of automobile lampshade injection molds is achieved, solving the problems of convenience and damage caused by manual operation, and improving demoulding efficiency and mold practicality.

CN223369932UActive Publication Date: 2025-09-23YANTAI TIANMING INJECTION MOLDING PROD CO LTD
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Patent Information

Application Number
CN202422723863.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-09-23
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

Existing automotive lampshade injection molds require manual operation during demoulding, and the lampshade is easily damaged due to excessive thrust, and the demoulding convenience is poor.

Method used

An electric push rod and a striking rubber head are used in combination to separate the car lampshade by knocking on the mold, and a conveyor belt and servo motor are used to automatically transport the demoulded product, reducing manual intervention.

Benefits of technology

The automatic demoulding is realized, the demoulding efficiency is improved, the damage of the lampshade caused by manual operation is avoided, and the practicality of the mold is enhanced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile lampshade injection mold convenient to demold, which belongs to the technical field of injection molds and comprises a vertical frame, a conveying mechanism is arranged on the vertical frame, a first electric push rod is fixedly mounted on one side of the vertical frame, and the output end of the first electric push rod extends to the inner side of the vertical frame and is fixedly connected with a first forming mold. And a second electric push rod is fixedly mounted on the other side of the vertical frame. According to the utility model, after injection molding is carried out in the molding cavity between the first molding mold and the second molding mold, the third electric push rod is used for driving the striking rubber head to move back and forth, and the striking rubber head is used for striking the first molding mold and the second molding mold, so that the separation of the automobile lampshade from the first molding mold and the second molding mold is ensured; and it is guaranteed that the first ejection mechanism and the second ejection mechanism smoothly eject and demould the automobile lampshade subsequently, and the practicability of the automobile lampshade injection mold convenient to demould is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and more particularly to an injection mold for an automobile lampshade which is easy to demould. Background Art

[0002] An injection mold is a tool for producing plastic products and also a tool for giving plastic products a complete structure and precise dimensions. Specifically, it refers to the process of injecting heated and molten plastic into the mold cavity under high pressure by an injection molding machine. After cooling and solidification, a molded product is obtained. Injection molds are required in the production process of automobile lampshades.

[0003] After searching, the utility model patent with publication number CN220576509U discloses an injection mold that can be quickly demolded, including: a bottom plate, a left vertical plate and a right vertical plate, the left side of the bottom plate is connected to the left vertical plate, the right side of the bottom plate is connected to the right vertical plate, a fixed mold is fixed on the left side of the upper surface of the bottom plate, a movable mold is provided on the right side of the fixed mold, and the right side of the movable mold is connected to the fixed plate, a demolding push rod 1 is installed in the middle of the right side of the left vertical plate, a demolding push rod 2 is provided in the middle of the fixed plate, a push rod is installed in the middle of the left side of the right vertical plate, and a mold groove is respectively provided in the middle of the right side of the fixed mold and the middle of the left side of the movable mold; this patent can make it easy for automobile lampshades to be injection molded by arranging the movable mold, the fixed mold, the push rod and the mold groove, and can facilitate demolding of the automobile lampshade after injection molding by arranging the demolding push rod 1, the demolding push rod 2, the push plate and the fixed plate. However, the above patent still has the following shortcomings: when demolding the automobile lampshade from the mold, manpower is required to pick it up and remove it, which is not convenient. In addition, there is a certain connection force between the automobile lampshade and the inner wall of the cavity during injection molding. When directly using the demolding push rods 1 and 2 to push out, the lampshade is easily damaged due to excessive thrust. For this reason, we propose an automobile lampshade injection mold that is easy to demold. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an automobile lampshade injection mold that is easy to demould.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A car lampshade injection mold that is easy to demold, includes a stand, a conveying mechanism is provided on the stand, a first electric push rod is fixedly installed on one side of the stand, the output end of the first electric push rod extends to the inner side of the stand and is fixedly connected to the first molding die, a second electric push rod is fixedly installed on the other side of the stand, the output end of the second electric push rod extends to the inner side of the stand and is fixedly connected to the second molding die, a molding cavity is provided between the first molding die and the second molding die, a first ejection mechanism is provided on the first molding die, and a second ejection mechanism is provided on the second molding die, a mounting frame is fixedly connected to the rear side of the stand, two third electric push rods are fixedly installed on the mounting frame, and the output ends of the two third electric push rods are fixedly connected to striking rubber heads.

[0007] As a preferred solution of the present invention, the conveying mechanism includes two conveying frames fixedly connected to the rear side of the vertical frame, the inner sides of the two conveying frames and the vertical frame are respectively rotatably connected with rotating rollers, a conveyor belt is transmission-connected between the two rotating rollers, a servo motor is fixedly installed on the outer side of one of the conveying frames, and the output shaft of the servo motor is connected to one end of the rotating shaft of one of the rotating rollers.

[0008] As a preferred solution of the present invention, the first ejection mechanism includes a mounting groove and a first receiving groove provided inside the first forming mold, the inner cavity of the mounting groove is fixedly installed with a fourth electric push rod, the output end of the fourth electric push rod extends to the inner cavity of the first receiving groove and is fixedly connected to a first push block, the side surface of the first push block is in contact with the inner wall of the first receiving groove, and the end face of the first push block is flush with the forming surface of the first forming mold.

[0009] As a preferred solution of the present invention, the second ejection mechanism includes a second receiving groove opened on the inner wall of the second forming mold and a fifth electric push rod fixedly installed on the outside of the second forming mold, the output end of the fifth electric push rod extends to the inner cavity of the second receiving groove and is fixedly connected to the second push block, the end face of the second push block is in contact with the inner wall of the second forming mold, and the inner wall of the second receiving groove is in contact with the side surface of the second push block.

[0010] As a preferred solution of the present invention, both the first forming die and the second forming die are provided with injection pipes.

[0011] As a preferred solution of the present invention, the side surfaces of the conveyor belt are respectively in contact with the inner side surfaces of the vertical frame and the conveyor frame.

[0012] As a preferred solution of the present invention, the inner side surface of the stand is fixedly connected to two support seats, and the bottom surfaces of the first forming mold and the second forming mold are respectively fitted with the top surfaces of the two support seats.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the present invention, after injection molding in the molding cavity between the first molding die and the second molding die, the third electric push rod is used to drive the striking rubber head to move back and forth, and the striking rubber head is used to knock the first molding die and the second molding die, so as to ensure that the automobile lampshade and the first molding die and the second molding die are separated, and to ensure that the subsequent first ejection mechanism and the second ejection mechanism can smoothly eject the automobile lampshade from the mold, thereby improving the practicality of the automobile lampshade injection mold that is easy to demold.

[0015] (2) In the present invention, the conveyor frame, the rotating roller, the conveyor belt and the servo motor are used in conjunction with each other, and the conveyor belt is used to catch the automobile lampshade that falls off during demolding. In addition, the servo motor is used to drive the rotating roller and the conveyor belt to rotate, and the conveyor belt is used to transport the demolded automobile lampshade to the next process, thereby avoiding the need for manpower to take the demolded automobile lampshade, and improving the practicality of the automobile lampshade injection mold that is easy to demold. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic cross-sectional view of the entirety of the present invention;

[0018] Figure 3 It is a cross-sectional schematic diagram of the stand of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the first molding die and the second molding die of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Stand; 2. Conveying mechanism; 3. First electric push rod; 4. Second electric push rod; 5. First molding die; 6. Second molding die; 7. First ejection mechanism; 8. Second ejection mechanism; 9. Mounting frame; 10. Third electric push rod; 11. Beating rubber head; 12. Injection pipe; 13. Molding cavity; 14. Conveying frame; 15. Rotating roller; 16. Conveyor belt; 17. Servo motor; 18. Support seat; 19. Mounting slot; 20. First receiving slot; 21. Fourth electric push rod; 22. First push block; 23. Second receiving slot; 24. Fifth electric push rod; 25. Second push block. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 , an automobile lampshade injection mold that is easy to demold, includes a stand 1, a conveying mechanism 2 is provided on the stand 1, a first electric push rod 3 is fixedly installed on one side of the stand 1, the output end of the first electric push rod 3 extends to the inner side of the stand 1 and is fixedly connected to the first molding die 5, a second electric push rod 4 is fixedly installed on the other side of the stand 1, the output end of the second electric push rod 4 extends to the inner side of the stand 1 and is fixedly connected to the second molding die 6, a molding cavity 13 is provided between the first molding die 5 and the second molding die 6, a first ejection mechanism 7 is provided on the first molding die 5, and a second ejection mechanism 8 is provided on the second molding die 6, a mounting frame 9 is fixedly connected to the rear side of the stand 1, two third electric push rods 10 are fixedly installed on the mounting frame 9, and the output ends of the two third electric push rods 10 are fixedly connected to striking rubber heads 11.

[0027] For details, please refer to Figures 1 to 3The conveying mechanism 2 includes two conveying frames 14 fixedly connected to the rear side of the stand 1, and the two conveying frames 14 and the inner sides of the stand 1 are respectively rotatably connected with rotating rollers 15, and a conveyor belt 16 is transmission-connected between the two rotating rollers 15. A servo motor 17 is fixedly installed on the outer side of one conveying frame 14, and the output shaft of the servo motor 17 is connected to one end of the rotating shaft of a rotating roller 15.

[0028] In this embodiment, the servo motor 17 is used to drive the rotating roller 15 to rotate, and the rotating roller 15 is used to drive the conveyor belt 16 to rotate.

[0029] For details, please refer to Figure 2 and Figure 4 The first ejection mechanism 7 includes a mounting groove 19 and a first receiving groove 20 provided inside the first molding die 5. A fourth electric push rod 21 is fixedly installed in the inner cavity of the mounting groove 19. The output end of the fourth electric push rod 21 extends to the inner cavity of the first receiving groove 20 and is fixedly connected to a first push block 22. The side surface of the first push block 22 is in contact with the inner wall of the first receiving groove 20, and the end surface of the first push block 22 is flush with the molding surface of the first molding die 5.

[0030] In this embodiment, the fourth electric push rod 21 is used to drive the first push block 22 to move, thereby ejecting the automobile lampshade injection-molded in the molding cavity 13 .

[0031] For details, please refer to Figure 2 and Figure 4 The second ejection mechanism 8 includes a second receiving groove 23 opened on the inner wall of the second molding mold 6 and a fifth electric push rod 24 fixedly installed on the outside of the second molding mold 6. The output end of the fifth electric push rod 24 extends to the inner cavity of the second receiving groove 23 and is fixedly connected to a second push block 25. The end surface of the second push block 25 is in contact with the inner wall of the second molding mold 6, and the inner wall of the second receiving groove 23 is in contact with the side surface of the second push block 25.

[0032] In this embodiment, the fifth electric push rod 24 is used to drive the second receiving groove 23 to move, thereby ejecting the automobile lampshade injection-molded in the molding cavity 13 .

[0033] For details, please refer to Figure 4 The first molding die 5 and the second molding die 6 are both provided with an injection tube 12 .

[0034] In this embodiment, injection molding is performed into the molding cavity 13 through the injection pipe 12 .

[0035] For details, please refer to Figure 1 and Figure 2 The sides of the conveyor belt 16 are respectively in contact with the inner sides of the stand 1 and the conveyor frame 14.

[0036] In this embodiment, the inner side surfaces of the stand 1 and the conveying frame 14 are used to limit the conveying belt 16 to prevent the automobile lampshades conveyed on the conveying belt 16 from falling off.

[0037] For details, please refer to Figure 1 The inner side surface of the stand 1 is fixedly connected to two support seats 18, and the bottom surfaces of the first molding die 5 and the second molding die 6 are respectively fitted with the top surfaces of the two support seats 18.

[0038] In this embodiment, the support base 18 is used to support the first molding die 5 and the second molding die 6 to ensure the stability of the first molding die 5 and the second molding die 6 .

[0039] Working principle: When in use, first use the first electric push rod 3 and the second electric push rod 4 to drive the first molding die 5 and the second molding die 6 to close the mold, and inject the injection plastic from the injection pipe 12 into the inner cavity of the molding cavity 13 for molding. Then, when the car lampshade in the molding cavity 13 is formed, start the third electric push rod 10 to drive the striking rubber head 11 to move back and forth, and use the striking rubber head 11 to knock the first molding die 5 and the second molding die 6, so that the car lampshade formed in the molding cavity 13 is separated from the first molding die 5 and the second molding die 6. Then start the first electric push rod 3 and the second electric push rod 4 to close the mold. The rod 3 and the second electric push rod 4 drive the first molding die 5 and the second molding die 6 to separate from each other, and at the same time, the fourth electric push rod 21 is started to drive the first push block 22 to move, and the fifth electric push rod 24 is started to drive the second push block 25 to move, so as to eject the automobile lampshades formed in the first molding die 5 and the second molding die 6, and the ejected automobile lampshades fall onto the conveyor belt 16. Finally, the servo motor 17 is started to drive a rotating roller 15, and the rotating roller 15 is used to drive the conveyor belt 16 to rotate, so that the demolded automobile lampshades can be transported to the subsequent processing steps through the conveyor belt 16.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold for an automobile lampshade that is easy to demould, comprising a stand (1), characterized in that: A conveying mechanism (2) is provided on the stand (1), a first electric push rod (3) is fixedly installed on one side of the stand (1), the output end of the first electric push rod (3) extends to the inner side of the stand (1) and is fixedly connected to a first molding die (5), a second electric push rod (4) is fixedly installed on the other side of the stand (1), the output end of the second electric push rod (4) extends to the inner side of the stand (1) and is fixedly connected to a second molding die (6), a molding cavity (13) is provided between the first molding die (5) and the second molding die (6), a first ejection mechanism (7) is provided on the first molding die (5), and a second ejection mechanism (8) is provided on the second molding die (6), a mounting frame (9) is fixedly connected to the rear side of the stand (1), two third electric push rods (10) are fixedly installed on the mounting frame (9), and the output ends of the two third electric push rods (10) are fixedly connected to a striking rubber head (11).

2. The easy-to-demold automobile lampshade injection mold according to claim 1, characterized in that: The conveying mechanism (2) comprises two conveying frames (14) fixedly connected to the rear side of the vertical frame (1), the inner sides of the two conveying frames (14) and the vertical frame (1) are respectively rotatably connected with rotating rollers (15), a conveying belt (16) is transmission-connected between the two rotating rollers (15), a servo motor (17) is fixedly installed on the outer side of one of the conveying frames (14), and the output shaft of the servo motor (17) is connected to one end of the rotating shaft of one of the rotating rollers (15).

3. The easy-to-demold automobile lampshade injection mold according to claim 1, characterized in that: The first ejection mechanism (7) comprises a mounting groove (19) and a first receiving groove (20) provided inside the first molding die (5); a fourth electric push rod (21) is fixedly mounted in the inner cavity of the mounting groove (19); an output end of the fourth electric push rod (21) extends to the inner cavity of the first receiving groove (20) and is fixedly connected to a first push block (22); a side surface of the first push block (22) is in contact with an inner wall of the first receiving groove (20); and an end surface of the first push block (22) is flush with a molding surface of the first molding die (5).

4. The easy-to-demold automobile lampshade injection mold according to claim 1, characterized in that: The second ejection mechanism (8) comprises a second receiving groove (23) provided on the inner wall of the second molding die (6) and a fifth electric push rod (24) fixedly mounted on the outer side of the second molding die (6); the output end of the fifth electric push rod (24) extends to the inner cavity of the second receiving groove (23) and is fixedly connected to a second push block (25); the end face of the second push block (25) is in contact with the inner wall of the second molding die (6), and the inner wall of the second receiving groove (23) is in contact with the side face of the second push block (25).

5. The easy-to-demold automobile lampshade injection mold according to claim 1, characterized in that: Both the first forming die (5) and the second forming die (6) are provided with an injection pipe (12).

6. The easy-to-demold automobile lampshade injection mold according to claim 2, characterized in that: The side surfaces of the conveyor belt (16) are respectively fitted with the inner side surfaces of the stand (1) and the conveyor frame (14).

7. The easy-to-demold automobile lampshade injection mold according to claim 1, characterized in that: The inner side surface of the stand (1) is fixedly connected to two support seats (18), and the bottom surfaces of the first forming mold (5) and the second forming mold (6) are respectively fitted with the top surfaces of the two support seats (18).

Citation Information

Patent Citations

  • Injection mold capable of rapidly demolding

    CN220576509U