Car lamp shell injection mold

Abstract

The utility model relates to the technical field of injection molds, and provides a car lamp shell injection mold which comprises a base and a lower mold fixedly mounted at the top of the base, and an inner cavity is formed in the lower mold; the upper die is arranged above the lower die and moves through a lifting mechanism arranged on the base; and the two fixed blocks are symmetrically and fixedly mounted on one side surface of the lower mold. The lifting mechanism drives the upper mold to move upwards to be separated from the lower mold, the upper mold moves upwards to touch the arc-shaped block, the movable rod is driven to rotate, and meanwhile the torsion spring is twisted to store force, so that the horizontal section of the movable rod tilts upwards and is matched with the shaft rod and the kidney-shaped hole groove to drive the demolding rod to move upwards, and the demolding rod drives the formed automobile lamp shell to move upwards to be separated from the mold cavity; therefore, the effect of conveniently demolding and taking out the automobile lamp shell is achieved, and the use convenience and the machining efficiency of automobile lamp shell production are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely relates to car lamp shell injection mold. BACKGROUND

[0002] Plastic mold is the plastic processing industry and plastic forming machine supporting, endows plastic products with complete configuration and accurate size tool. Because plastic variety and processing method are numerous, the structure of plastic forming machine and plastic product is various, and the type and structure of plastic mold are also various. Car lamp shell needs to use injection mold when processing.

[0003] The authorized patent with application number CN202323409569.7 discloses a high-precision rapid heat dissipation automobile car lamp shell injection mold, and its background technology proposes the problem of "poor cooling effect and poor sealing effect, unstable injection, and cannot be quickly disassembled and replaced", and therefore, the technical solution for solving the problem is "including a support base, a cooling groove is inserted and communicated on the front and rear sides of the support base, a circulating pipe is installed on the front and rear sides of the cooling groove, a spiral cover is rotatably installed on one end of the circulating pipe, a refrigeration box is installed on the other end of the circulating pipe, and the refrigeration box is fixedly connected to the two sides of the fixed frame".

[0004] However, in the implementation of the related technology, it is found that the above technical solution has the following problems: although the provided technical solution achieves the effect of rapid cooling and replacement of the mold, it is inconvenient to conveniently demold and take out the formed car lamp shell, and personnel are needed for demolding and taking out, which is relatively inconvenient, and some injection molds can automatically demold, but need an additional power source to drive, which easily increases the use and maintenance cost, thereby reducing the use convenience and production efficiency of the car lamp shell. UTILITY MODEL CONTENTS

[0005] The utility model discloses a car lamp shell injection mold, which solves the problem of inconvenient demolding and taking out of the formed car lamp shell in the related technology.

[0006] The technical scheme of the utility model is as follows: a car lamp shell injection mold comprises a base and a lower mold fixedly installed on the top of the base, and the lower mold has an inner cavity in the inside;

[0007] An upper mold is arranged above the lower mold, and the upper mold moves through a lifting mechanism arranged on the base;

[0008] Two fixed blocks are symmetrically and fixedly installed on one side surface of the lower mold;

[0009] A rotating rod is rotatably connected between the two fixed blocks;

[0010] The movable rod is fixedly installed on the surface of the rotating rod and is L-shaped, and one side surface of the lower mold is provided with a slot for the horizontal end of the movable rod to extend into the inner cavity.

[0011] The torsion spring is sleeved on the surfaces of the two ends of the rotating rod.

[0012] The demolding rod is slidably connected to the inner bottom wall of the mold cavity of the lower mold, and the demolding rod and the movable rod are movably connected.

[0013] The arc-shaped block is fixedly installed on the side surface of the vertical section of the movable rod.

[0014] Preferably, the horizontal section of the movable rod is provided with a waist hole slot, the surface of the demolding rod is rotatably connected with a shaft rod which is slidably connected with the waist hole slot, and the two ends of the torsion spring are respectively connected with the fixed block and the movable rod.

[0015] Preferably, the lifting mechanism comprises a fixed frame fixedly installed on the top of the base, and two hydraulic cylinders symmetrically fixedly installed on the top of the fixed frame, the output ends of the hydraulic cylinders are movably connected with the upper mold and the fixed frame, and the upper mold and the fixed frame are slidably connected.

[0016] Preferably, the top of the base is provided with a recess, and the base is provided with a trimming mechanism for trimming the injection molded part.

[0017] The trimming mechanism comprises a moving part arranged in the recess, two electric push rods symmetrically arranged on the moving part, an L-shaped plate fixedly connected with the output ends of the electric push rods, and two semicircular trimming rings fixedly installed on the bottom of the vertical section of the L-shaped plate, the two semicircular trimming rings are closed to form a complete ring, and the size of the ring is matched with the size of the mold cavity of the lower mold.

[0018] The moving part comprises a bidirectional screw rod rotatably connected to the inner walls of the recess, two moving plates symmetrically and threadedly connected with the surface of the bidirectional screw rod and slidably connected with the recess, and a motor fixedly installed on one side surface of the base, the output end of the motor is movably connected with the bidirectional screw rod through the base, the opposite surfaces of the two moving plates are provided with inner grooves, and the electric push rods are fixedly connected with the inner top walls of the inner grooves.

[0019] The working principle and beneficial effects of the utility model are as follows:

[0020] After the headlight housing cools and solidifies, a lifting mechanism moves the upper mold upwards and separates it from the lower mold. The upper mold moves upwards and touches the arc-shaped block, causing the movable rod to rotate. Simultaneously, the torsion spring stores force, causing the horizontal section of the movable rod to tilt upwards. This, in conjunction with the shaft and waist slot, moves the demolding rod upwards, thus lifting the solidified headlight housing. The demolding rod then moves the solidified headlight housing upwards, separating it from the lower mold cavity for demolding. Once the upper mold and arc-shaped block separate, the torsion spring resets the movable rod, allowing the demolding rod to return to its original position. This process allows for convenient demolding and removal of the headlight housing. The operation is simple and convenient, requiring no manual demolding and no additional power source, reducing usage and maintenance costs and effectively improving ease of use and processing efficiency in headlight housing production. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0024] Figure 3 This is a cross-sectional three-dimensional structural diagram of the lower mold of this utility model;

[0025] Figure 4 This is a partial three-dimensional structural diagram of the movable rod of this utility model;

[0026] Figure 5 This is a cross-sectional perspective view of the base of this utility model.

[0027] In the diagram: 1. Base; 2. Lower mold; 3. Upper mold; 4. Fixed block; 5. Rotating rod; 6. Movable rod; 7. Torsion spring; 8. Demolding rod; 9. Arc-shaped block; 10. Waist hole groove; 11. Shaft; 12. Fixed frame; 13. Hydraulic cylinder; 14. Electric push rod; 15. L-shaped plate; 16. Semi-circular cutting ring; 17. Two-way lead screw; 18. Moving plate; 19. Motor. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0029] Example 1

[0030] Please refer to Figure 1 - Figure 5 The vehicle lamp shell injection mold provided by the utility model, comprising: a base 1 and a lower mold 2 fixedly installed on the top of the base 1, the inside of the lower mold 2 has an inner cavity, wherein the inner wall of the mold cavity of the lower mold 2 is coated with an anti-sticking coating, such as a graphite coating, a fluoride coating and a ceramic coating, which can prevent the vehicle lamp shell from being bonded with the inner wall of the mold cavity and facilitate subsequent demolding processing.

[0031] An upper mold 3 is arranged above the lower mold 2, and the upper mold 3 is moved through a lifting mechanism arranged on the base 1.

[0032] Two fixed blocks 4 are symmetrically and fixedly installed on the side surface of the lower mold 2.

[0033] A rotating rod 5 is rotatably connected between the two fixed blocks 4.

[0034] An L-shaped movable rod 6 is fixedly installed on the surface of the rotating rod 5, and a slot is formed in the side surface of the lower mold 2, so that the horizontal end of the movable rod 6 can extend into the inner cavity.

[0035] A torsion spring 7 is sleeved on the surface of the two ends of the rotating rod 5.

[0036] A demolding rod 8 is slidably connected to the bottom wall of the mold cavity of the lower mold 2, and the demolding rod 8 and the movable rod 6 are movably connected, wherein the demolding rod 8 and the mold cavity are sealingly and slidably connected.

[0037] An arc-shaped block 9 is fixedly installed on the side surface of the vertical section of the movable rod 6.

[0038] A waist hole slot 10 is formed in the horizontal section of the movable rod 6, the surface of the demolding rod 8 is rotatably connected with a shaft rod 11 which is slidably connected with the waist hole slot 10, and the two ends of the torsion spring 7 are connected with the fixed blocks 4 and the movable rod 6 respectively.

[0039] The technical scheme provided by the embodiment is as follows: in use, the upper mold 3 is driven downward by the lifting mechanism, so that the upper mold 3 and the lower mold 2 are combined to perform injection molding; after the vehicle lamp shell is cooled and formed, the upper mold 3 is driven upward by the lifting mechanism and the lower mold 2 is separated; in the process of upward movement of the upper mold 3, the side edge of the upper mold 3 touches the arc-shaped block 9 and drives the movable rod 6 to rotate around the rotating rod 5, and at the same time, the torsional spring 7 is twisted to store energy, so that the horizontal section of the movable rod 6 is raised upward, and the shaft rod 11 and the waist hole groove 10 drive the demolding rod 8 to move upward, so that the demolding rod 8 drives the formed vehicle lamp shell to move upward, so that the vehicle lamp shell and the cavity of the lower mold 2 are separated for demolding; after the upper mold 3 and the arc-shaped block 9 are separated, the movable rod 6 is reset by the torsional spring 7, so that the demolding rod 8 is reset, thereby achieving the effect of conveniently demolding and taking out the vehicle lamp shell, the operation process is simple and convenient, manual demolding is not required, and an additional power source is not required to drive demolding, thereby reducing the use cost and maintenance cost and effectively improving the use convenience and the processing efficiency of vehicle lamp shell production.

[0040] Further, the lifting mechanism comprises a fixed frame 12 fixedly installed on the top of the base 1 and two hydraulic cylinders 13 symmetrically fixedly installed on the top of the fixed frame 12, the output ends of the hydraulic cylinders 13 are movably connected with the upper mold 3 through the fixed frame 12, and the upper mold 3 is slidably connected with the fixed frame 12.

[0041] Specifically, the upper mold 3 is driven to lift by the hydraulic cylinders 13, in the process of upward movement of the upper mold 3 for demolding, the upper mold 3 touches the arc-shaped block 9 to drive the movable rod 6 to rotate for demolding, and after demolding is completed, the upper mold 3 is driven downward by the hydraulic cylinders 13 to reset at the bottom of the arc-shaped block 9.

[0042] Further, the top of the base 1 is provided with a groove, and the base 1 is provided with an edge removing mechanism for trimming the injection molded part.

[0043] The edge removing mechanism comprises a moving part arranged in the groove, two electric push rods 14 symmetrically arranged on the moving part, an L-shaped plate 15 fixedly connected with the output ends of the electric push rods 14, and a semicircular cutting ring 16 fixedly installed at the bottom of the vertical section of the L-shaped plate 15, and the two semicircular cutting rings 16 are closed to form a complete ring, and the size of the ring is matched with the size of the cavity of the lower mold 2.

[0044] The moving part comprises a bidirectional screw rod 17 rotatably connected to the inner walls of the groove, two moving plates 18 symmetrically screw-connected to the surfaces of the bidirectional screw rod 17 and slidably connected with the groove, and a motor 19 fixedly installed on one side surface of the base 1, the output end of the motor 19 is movably connected with the bidirectional screw rod 17 through the base 1, the opposite surfaces of the two moving plates 18 are provided with inner grooves, and the electric push rods 14 are fixedly connected to the inner top walls of the inner grooves.

[0045] Specifically, after forming, the upper mold 3 is driven by the lifting mechanism to move upward and separate from the lower mold 2, and after moving upward by a distance, it stops, then the bidirectional screw rod 17 is driven by the motor 19 to rotate, so that the two moving plates 18 are close to each other, and the two semicircular cutting rings 16 are closed and docked to form a circular ring, at the same time, the semicircular cutting ring 16 is driven by the electric push rod 14 to move downward into the mold cavity, so that the edge of the formed part is cut by the semicircular cutting ring 16, achieving the effect of trimming, and preventing the vehicle lamp shell and the mold cavity from sticking, facilitating subsequent demolding.

[0046] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A mold for injection molding a vehicle lamp housing, characterized by, The utility model relates to a kind of injection molding machine, including: Base (1) and fixedly installed lower mould (2) on its top, the inside of the lower mould (2) has inner cavity; Upper mould (3) is arranged above lower mould (2), and the upper mould (3) is moved by lifting mechanism arranged on base (1); Two fixed blocks (4) are symmetrically fixedly installed on one side of lower mould (2); Rotary rod (5) is rotatably connected between two fixed blocks (4); L-shaped movable rod (6) is fixedly installed on the surface of rotary rod (5), and one side of lower mould (2) is provided with slot for the horizontal end of movable rod (6) to extend into inner cavity; Torsion spring (7) is sleeved on the surface of both ends of rotary rod (5); Ejection rod (8) is slidably connected to the inner bottom wall of mold cavity of lower mould (2), and the ejection rod (8) is movably connected between movable rod (6); And arc-shaped block (9) is fixedly installed on the side of vertical section of movable rod (6).

2. The vehicle lamp housing injection mold of claim 1, wherein, Waist hole slot (10) is formed on the horizontal section of movable rod (6), shaft rod (11) is rotatably connected to the surface of ejection rod (8) and slidably connected to waist hole slot (10), and both ends of torsion spring (7) are connected with fixed block (4) and movable rod (6) respectively.

3. The vehicle lamp housing injection mold of claim 1, wherein, The lifting mechanism includes fixed frame (12) fixedly installed on the top of base (1), and two hydraulic cylinders (13) symmetrically fixedly installed on the top of fixed frame (12), the output end of hydraulic cylinder (13) is movably connected through fixed frame (12) and upper mould (3), and upper mould (3) is slidably connected with fixed frame (12).

4. The vehicle lamp housing injection mold of claim 1, wherein, The top of base (1) is provided with a recess, and the base (1) is provided with a trimming mechanism for trimming the injection molded part.

5. The vehicle lamp housing injection mold of claim 4, wherein, The trimming mechanism includes a moving part arranged in the recess, two electric push rods (14) symmetrically arranged on the moving part, an L-shaped plate (15) fixedly connected to the output end of the electric push rod (14), and a semicircular cutting ring (16) fixedly installed at the bottom of the vertical section of the L-shaped plate (15).

6. The vehicle lamp housing injection mold of claim 5, wherein, The moving part includes a bidirectional screw rod (17) rotatably connected to the inner wall of the recess, two moving plates (18) symmetrically screw-connected to the surface of the bidirectional screw rod (17) and slidably connected to the recess, and a motor (19) fixedly installed on one side of the base (1), the output end of the motor (19) is movably connected with the bidirectional screw rod (17) through the base (1), and the opposite surfaces of the two moving plates (18) are provided with an inner groove, and the electric push rod (14) is fixedly connected to the inner top wall of the inner groove.

7. The vehicle lamp housing injection mold of claim 5, wherein, When two semicircular cutting rings (16) are closed, a complete ring is formed, and the size of the ring is matched with the size of the mold cavity of lower mould (2).

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