Automobile lamp mold demolding mechanism

By designing a hydraulically driven demolding mechanism for automotive headlight molds, the problem of mold heat causing burns to operators was solved, achieving automated mold opening and closing and stable demolding, thus improving operational safety and efficiency.

CN120269782BActive Publication Date: 2026-02-06KUNSHAN RENTAO MOULD CO LTD
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Patent Information

Application Number
CN202510743880.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-05
Publication Date
2026-02-06
Estimated Expiration
2045-06-05

AI Technical Summary

Technical Problem

In existing technology, the mold inside the car headlight still retains heat after the headlight is formed, and operators are easily burned when removing the headlight.

Method used

Design a demolding mechanism for automotive headlight molds. Utilize a hydraulic telescopic frame to drive the moving plate and pressing plate to achieve automated mold opening and closing. Prevent material spillage through sealing components. Use hydraulic oil to drive the demolding plate and vertical rod to achieve stable demolding of the headlights and avoid heat dissipation.

Benefits of technology

It enables automatic mold opening and closing, avoiding burns to operators, and improves the convenience and stability of demolding car lights, while preventing material spillage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN120269782B_ABST
    Figure CN120269782B_ABST
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Abstract

The application relates to the technical field of automobile lamp mold stripping, and discloses an automobile lamp mold stripping mechanism, which comprises a base, a limiting rod fixedly connected to the top of the base, an injection part, a supporting plate, a lower mold fixedly connected to the top of the supporting plate, a hydraulic telescopic frame fixedly connected to the surface of the supporting plate, a moving plate fixedly connected to the upper surface of the hydraulic telescopic frame, and a pressing plate fixedly connected to the bottom of the moving plate. The hydraulic telescopic frame starts work, the hydraulic telescopic frame pushes the moving plate to slide on the surface of the limiting rod, the moving plate drives the pressing plate and the upper mold to move when the moving plate moves, the sealing parts are separated from each other to make the feeding hole open when the bottom of the pressing plate moves to the top of the lower mold, raw materials are poured into the inside of the conical frame, the raw materials flow into the inside of the lower mold through the feeding hole to complete the injection work.
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Description

TECHNICAL FIELD

[0001] The application relates to a demolding mechanism for an automobile lamp mold. BACKGROUND

[0002] The automobile lamp injection demolding refers to the process that after molten plastic is injected into a mold, an automobile lamp part is formed through a cooling and solidification process, and then the automobile lamp part is taken out of the mold.

[0003] In the prior art, an injection molding method is generally used for producing and manufacturing an automobile lamp. After an injection molding part is cooled in the mold, a worker can perform demolding treatment on the formed automobile lamp. However, after the automobile lamp is formed, heat is still stored in the mold. When the worker takes out the automobile lamp from the mold, the heat in the mold can scald the worker. SUMMARY

[0004] The application aims to provide a demolding mechanism for an automobile lamp mold to solve the problems in the background.

[0005] To solve the above technical problems, the application is implemented by the following technical scheme.

[0006] The application is a demolding mechanism for an automobile lamp mold, which comprises a base, a limiting rod fixedly connected to the top of the base, and further comprises:

[0007] An injection molding part, which comprises a support plate, a lower mold fixedly connected to the top of the support plate, a hydraulic telescopic frame fixedly connected to the surface of the support plate, a moving plate fixedly connected to the upper surface of the hydraulic telescopic frame, and a pressing plate fixedly connected to the bottom of the moving plate.

[0008] A sealing part, which comprises a sliding groove, the sliding groove being formed in the bottom of the pressing plate, and a limiting hole being formed in the inside of the pressing plate.

[0009] A demolding part, which comprises a circular tube, the top of the circular tube being fixedly connected to the bottom of the support plate, a demolding groove being formed in the inner wall bottom of the lower mold, a demolding plate being arranged in the inside of the demolding groove, and a vertical rod being fixedly connected to the bottom of the demolding plate.

[0010] A pressing part, which comprises a right-angle groove, the right-angle groove being formed in the inner wall bottom of the lower mold, a right-angle plate being hingedly connected to the inner wall top of the right-angle groove, and the surface of the right-angle plate being in contact with the inner wall of the right-angle groove.

[0011] Further, the injection molding part comprises an upper mold, the top of the upper mold is fixedly connected with the bottom of the moving plate, the top of the moving plate is provided with a feeding hole, the top of the moving plate is fixedly connected with a conical frame, the inner wall of the moving plate is slidably connected with the surface of the limiting rod;

[0012] The inner wall of the upper mold is in contact with the surface of the lower mold, the surface of the pressing plate is in contact with the inner wall of the lower mold, and the inner wall of the supporting plate is fixedly connected with the surface of the limiting rod.

[0013] Further, the supporting plate is located below the moving plate, the moving plate and the supporting plate are centrally symmetrically arranged through the hydraulic telescopic support, the number of the limiting rods is four, and the four limiting rods are located at the top corners of the base.

[0014] Further, the top of the limiting rod extends to the top outer end of the moving plate, the bottom of the feeding hole completely penetrates the pressing plate, the supporting plate is located above the base, and the conical frame and the feeding hole are in communication with each other.

[0015] Further, the sealing part comprises an elastic rod, the end of the elastic rod is fixedly connected with the inner wall of the limiting hole, the bottom of the elastic rod is fixedly connected with a sealing plate, the top of the lower mold is provided with a through hole, and the inner wall of the through hole is fixedly connected with an inclined plate;

[0016] The bottom of the limiting hole and the top of the chute are in communication with each other, the number of the sealing plates is two, and the two sealing plates are symmetrically arranged with the feeding hole as the center.

[0017] Further, the two sealing plates are in contact with each other at one end away from each other, the two sealing plates are horizontally arranged at one end away from each other, the bottom of the sealing plate is horizontally arranged with the bottom of the pressing plate, the sealing plate is located at the end of the elastic rod away from the limiting hole, the surface of the sealing plate is slidably connected with the inner wall of the chute, the top of the inclined plate extends to the top outer end of the lower mold, and the inclined surface of the inclined plate corresponds to the end of the sealing plate.

[0018] Further, the demolding part comprises a transmission frame, the top of the transmission frame is in communication with the bottom of the circular pipe, the end of the transmission frame is fixedly connected with a mounting frame, the top of the mounting frame is connected with a pressure cylinder, the inner wall of the pressure cylinder is slidably connected with a pressure plate, the top of the pressure plate is fixedly connected with a sliding rod, the top of the sliding rod is fixedly connected with a bent rod, the end of the bent rod away from the sliding rod is fixedly connected with the top of the moving plate, and the upper surface of the pressure cylinder is communicated with a liquid delivery pipe.

[0019] The end of the infusion tube away from the pressure cylinder is communicated with the top of the transmission frame, the surface of the support plate is provided with a positioning hole, the inner wall of the circular tube is provided with a stabilizing groove, and the lower surface of the vertical rod is fixedly connected with a sliding block.

[0020] Further, the top of the circular tube is communicated with the demolding groove, the surface of the vertical rod is slidably connected with the inner wall of the circular tube, the surface of the sliding block is slidably connected with the inner wall of the stabilizing groove, and the top of the sliding rod penetrates through the pressure cylinder and extends to the outer end of the top of the pressure cylinder.

[0021] Further, the extrusion component comprises a curved rod, the top of the curved rod is fixedly connected with the bottom of the demolding plate, one end of the curved rod away from the demolding plate is fixedly connected with a groove push plate, and the inner wall of the groove push plate is rotatably connected with a rolling rod.

[0022] The inside of the support plate is provided with a storage groove.

[0023] Further, the top of the right-angle groove extends to the inner wall of the lower mold, one end of the curved rod away from the demolding plate penetrates through the support plate and extends to the inside of the storage groove, the storage groove is communicated with the right-angle groove, the groove push plate is located in the inside of the storage groove, the surface of the rolling rod extends to the outer end of the groove push plate, and the top of the rolling rod is in contact with the bottom of the right-angle plate.

[0024] The present application has the following beneficial effects:

[0025] The hydraulic telescopic frame is started to work, the hydraulic telescopic frame drives the moving plate to slide on the surface of the limiting rod, and the moving plate drives the pressing plate and the upper mold to move when moving, the sealing components are separated from each other to open the feeding hole after the bottom of the pressing plate moves to the top of the lower mold, the raw materials are poured into the inside of the conical frame, and then the raw materials flow into the inside of the lower mold through the feeding hole to complete injection molding work, the hydraulic telescopic frame is started to drive the moving plate to move downward after injection molding is completed, and the pressing plate and the lower mold are matched with each other to form and process the automobile lamp, the hydraulic telescopic frame is used to automatically drive the upper mold and the lower mold to open and close, and the situation that an operator is scalded when manually assembling the upper mold and the lower mold is avoided.

[0026] The elastic rod pushes the sealing plate to the outer end of the pressing plate by using the elasticity after the bottom of the pressing plate moves to the top of the lower mold, the sealing plate slides in the sliding groove, the sliding groove limits the sealing plate, improves the stability of the sealing plate during movement, the end of the sealing plate moves to the outer end of the pressing plate and contacts the upper surface of the inclined plate, at this time, the feeding hole is in an open state, after the raw material is filled, the moving plate moves downward, the inclined plate extrudes the end of the sealing plate by using the inclined surface, when the sealing plate moves downward, the sealing plate moves to the bottom of the feeding hole along the inclined surface of the inclined plate, when the pressing plate contacts the inner wall of the lower mold, the end of the sealing plate also contacts the inner wall of the lower mold to seal the feeding hole, so that the raw material in the lower mold is prevented from overflowing from the inside of the feeding hole when the pressing plate moves downward, and the operator is prevented from being scalded when operating.

[0027] The automobile lamp needs to be demolded after injection molding, the hydraulic telescopic frame is started to push the moving plate to move downward, the moving plate pulls the sliding rod to move to the outer end of the pressure cylinder by using the bent rod and pulls the pressure plate to move, when the bottom of the pressing plate is horizontal with the top of the lower mold, the pressure plate pushes the hydraulic oil in the pressure cylinder to enter the inside of the delivery pipe, and enters the inside of the circular pipe through the transmission frame and contacts the bottom of the vertical rod, when the moving plate continues to move upward, the pressure plate extrudes the hydraulic oil in the pressure cylinder, the pressure is transmitted to the inside of the circular pipe, at this time, the hydraulic oil in the circular pipe can push the vertical rod to move upward by pressure, the demolding plate separates from the inner wall of the demolding groove when moving, the demolding plate pushes the automobile lamp to move to the outer end of the lower mold in the moving process, when the automobile lamp moves to the outer end of the lower mold, the heat remaining on the surface of the lower mold and the automobile lamp is dissipated outward, so that the operator is prevented from being scalded when the automobile lamp and the lower mold are separated and the heat is dissipated, the automobile lamp is pushed out by the demolding plate, and the convenience of the automobile lamp during demolding is improved.

[0028] When the demolding plate moves upward, the curved rod pushes the groove push plate to move upward, the groove push plate extrudes the straight angle plate by driving the rolling rod in the moving process, at this time, the top of the straight angle plate rotates around the top of the inner wall of the straight angle groove as a fulcrum, the end of the straight angle plate close to the demolding plate contacts the bottom of the automobile lamp when rotating, four straight angle plates are arranged in the lower mold, and the four straight angle plates support and limit the four edges of the bottom of the automobile lamp, so that the stability of the automobile lamp during demolding is improved, and the automobile lamp is prevented from being stuck due to tilting during demolding.

[0029] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0032] Figure 2 It is a schematic diagram of the base structure of the present application;

[0033] Figure 3 It is a schematic diagram of the structure of the present application;

[0034] Figure 4 It is a schematic diagram of the overall structure of the injection molding part of the present application;

[0035] Figure 5 It is a schematic diagram of the overall structure of the sealing part of the present application;

[0036] Figure 6 It is another schematic diagram of the structure of the sealing part of the present application;

[0037] Figure 7 It is a schematic diagram of the overall structure of the demolding part of the present application;

[0038] Figure 8 It is another schematic diagram of the structure of the demolding part of the present application;

[0039] Figure 9 It is an enlarged schematic diagram of A part in the present application; Figure 8

[0040] Figure 10 It is a schematic diagram of the overall structure of the extrusion part of the present application.

[0041] In the drawings, the component list represented by each reference sign is as follows:

[0042] ​In the figure: 1, base; 2, limiting rod; 3, injection molding part; 4, sealing part; 5, demolding part; 6, extrusion part; 10, moving plate; 11, feeding hole; 12, conical frame; 13, upper mold; 14, lower mold; 15, hydraulic telescopic frame; 16, pressing plate; 17, support plate; 20, elastic rod; 21, limiting hole; 22, inclined plate; 23, through hole; 24, sealing plate; 25, sliding groove; 30, bent rod; 31, positioning hole; 32, pressure cylinder; 33, mounting frame; 34, infusion tube; 35, demolding groove; 36, demolding plate; 37, vertical rod; 38, transmission frame; 39, pressure plate; 40, sliding rod; 41, round pipe; 42, stabilizing groove; 43, sliding block; 50, right angle plate; 51, right angle groove; 52, curved rod; 53, recessed push plate; 54, rolling rod; 55, storage groove. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the 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 of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0044] Please refer to Figures 1-10 The present application is a demolding mechanism for an automobile lamp mold, which comprises a base 1, a limiting rod 2 fixedly connected to the top of the base 1, and further comprises:

[0045] An injection molding part 3, which comprises a support plate 17, a lower mold 14 fixedly connected to the top of the support plate 17, and a hydraulic telescopic frame 15 fixedly connected to the surface of the support plate 17. The hydraulic telescopic frame 15 is started to work, and pushes the moving plate 10 to slide on the surface of the limiting rod 2. The upper surface of the hydraulic telescopic frame 15 is fixedly connected with the moving plate 10, the bottom of the moving plate 10 is fixedly connected with the pressing plate 16, and the moving plate 10 drives the pressing plate 16 and the upper mold 13 to move when moving;

[0046] A sealing part 4, which comprises a sliding groove 25 opened in the bottom of the pressing plate 16, and a limiting hole 21 opened in the inside of the pressing plate 16;

[0047] A demolding part 5, which comprises a round pipe 41 fixedly connected to the bottom of the support plate 17, a demolding groove 35 opened in the inner wall of the lower mold 14, and a demolding plate 36 arranged in the inside of the demolding groove 35. The bottom of the demolding plate 36 is fixedly connected with a vertical rod 37;

[0048] The extrusion part 6 comprises a right-angle groove 51 formed in the inner wall bottom of the lower die 14, and a right-angle plate 50 is hinged to the inner wall top of the right-angle groove 51, and the surface of the right-angle plate 50 is in contact with the inner wall of the right-angle groove 51.

[0049] The injection part 3 comprises the upper die 13, the top of the upper die 13 is fixedly connected with the bottom of the moving plate 10, the top of the moving plate 10 is provided with the feeding hole 11, when the bottom of the pressing plate 16 moves to the top of the lower die 14, the sealing parts 4 are separated from each other to open the feeding hole 11, the top of the moving plate 10 is fixedly connected with the conical frame 12, the raw material flows into the inside of the lower die 14 through the feeding hole 11 to complete the injection work, after the injection is completed, the hydraulic telescopic frame 15 is started to push the moving plate 10 to move downward, the inner wall of the moving plate 10 is in sliding connection with the surface of the limiting rod 2;

[0050] The inner wall of the upper die 13 is in contact with the surface of the lower die 14, the automobile lamp is formed by the cooperation of the pressing plate 16 and the lower die 14, the upper die 13 and the lower die 14 are automatically opened and closed by the hydraulic telescopic frame 15, the surface of the pressing plate 16 is in contact with the inner wall of the lower die 14, and the inner wall of the supporting plate 17 is fixedly connected with the surface of the limiting rod 2.

[0051] The supporting plate 17 is located below the moving plate 10, the moving plate 10 and the supporting plate 17 are symmetrically arranged around the hydraulic telescopic frame 15, the number of the limiting rods 2 is four, and the four limiting rods 2 are located at the top four corners of the base 1.

[0052] The top of the limiting rod 2 extends to the top outer end of the moving plate 10, the bottom of the feeding hole 11 completely penetrates the pressing plate 16, the supporting plate 17 is located above the base 1, and the conical frame 12 is in communication with the feeding hole 11.

[0053] The sealing part 4 comprises an elastic rod 20, the end of the elastic rod 20 is fixedly connected with the inner wall of the limiting hole 21, after the bottom of the pressing plate 16 moves to the top of the lower die 14, the elastic rod 20 pushes the sealing plate 24 to move to the outer end of the pressing plate 16 by using the elasticity, the bottom of the elastic rod 20 is fixedly connected with the sealing plate 24, the top of the lower die 14 is provided with a through hole 23, the sealing plate 24 slides in the inside of the sliding groove 25, the sealing plate 24 is limited by the sliding groove 25, and the inner wall of the through hole 23 is fixedly connected with an inclined plate 22.

[0054] The bottom of the limiting hole 21 is in communication with the top of the sliding groove 25, after the end of the sealing plate 24 moves to the outer end of the pressing plate 16, the end of the sealing plate 24 is in contact with the upper surface of the inclined plate 22, at this time, the feeding hole 11 is in an open state, the number of the sealing plates 24 is two, and the two sealing plates 24 are symmetrically arranged around the feeding hole 11.

[0055] The two sealing plates 24 are in contact with each other at one end close to each other, the moving plate 10 moves downward, the inclined plate 22 extrudes the end of the sealing plate 24 by means of the inclined surface, when the sealing plate 24 moves downward, the sealing plate 24 moves to the bottom of the feeding hole 11 along the inclined surface of the inclined plate 22, the other end of the two sealing plates 24 is arranged horizontally on the surface of the pressing plate 16, the bottom of the sealing plate 24 is arranged horizontally on the bottom of the pressing plate 16, when the pressing plate 16 is in contact with the inner wall of the lower mold 14, the end of the sealing plate 24 is also in contact with the inner wall of the lower mold 14 to seal the feeding hole 11, the sealing plate 24 is located at the end of the elastic rod 20 away from the limiting hole 21, the surface of the sealing plate 24 is in sliding connection with the inner wall of the sliding groove 25, the top of the inclined plate 22 extends to the top outer end of the lower mold 14, and the inclined surface of the inclined plate 22 corresponds to the end of the sealing plate 24.

[0056] The demolding component 5 comprises a transmission frame 38, the top of the transmission frame 38 is in communication with the bottom of the circular pipe 41, and the end of the transmission frame 38 is fixedly connected with the mounting frame 33; after the automobile lamp is completed injection molding, the automobile lamp needs to be demolded; the hydraulic telescopic frame 15 is started to push the moving plate 10 to move downward; the top of the mounting frame 33 is connected with the pressure cylinder 32 in a linkage mode; the inner wall of the pressure cylinder 32 is in sliding connection with the pressure plate 39; at the same time, the moving plate 10 pulls the sliding rod 40 to move to the outer end of the pressure cylinder 32 and pulls the pressure plate 39 to move; the top of the pressure plate 39 is fixedly connected with the sliding rod 40; the top of the sliding rod 40 is fixedly connected with the bent rod 30; one end of the bent rod 30 away from the sliding rod 40 is fixedly connected with the top of the moving plate 10; when the bottom of the pressing plate 16 is horizontal to the top of the lower mold 14, the pressure plate 39 pushes the hydraulic oil in the pressure cylinder 32 to enter the inside of the infusion pipe 34; the upper surface of the pressure cylinder 32 is in communication with the infusion pipe 34.

[0057] One end of the infusion pipe 34 away from the pressure cylinder 32 is in communication with the top of the transmission frame 38; the surface of the supporting plate 17 is provided with the positioning hole 31; the inside of the circular pipe 41 enters the bottom of the vertical rod 37 in communication with the transmission frame 38; when the moving plate 10 continues to move upward, the pressure plate 39 extrudes the hydraulic oil in the pressure cylinder 32; the inner wall of the circular pipe 41 is provided with the stabilizing groove 42; the lower surface of the vertical rod 37 is fixedly connected with the sliding block 43.

[0058] The top of the circular pipe 41 is in communication with the demolding groove 35; the surface of the vertical rod 37 is in sliding connection with the inner wall of the circular pipe 41; the pressure is transmitted to the inside of the circular pipe 41; at this time, the hydraulic oil in the circular pipe 41 can push the vertical rod 37 to move upward by means of the pressure; the vertical rod 37 pushes the demolding plate 36 to separate from the inner wall of the demolding groove 35 when moving; the surface of the sliding block 43 is in sliding connection with the inner wall of the stabilizing groove 42; and the top of the sliding rod 40 penetrates through the pressure cylinder 32 and extends to the top outer end of the pressure cylinder 32.

[0059] The extrusion part 6 comprises a curved rod 52, the top of the curved rod 52 is fixedly connected with the bottom of the stripping plate 36, the curved rod 52 pushes the groove push plate 53 to move upwards when the stripping plate 36 moves upwards, the groove push plate 53 drives the rolling rod 54 to extrude the right angle plate 50 in the moving process, the end of the curved rod 52 away from the stripping plate 36 is fixedly connected with the groove push plate 53, at this time the top of the right angle plate 50 will rotate with the inner wall top of the right angle groove 51 as a fulcrum, the end of the right angle plate 50 close to the stripping plate 36 will contact with the bottom of the automobile lamp when rotating, the inner wall of the groove push plate 53 is rotationally connected with the rolling rod 54;

[0060] The inside of the support plate 17 is provided with a storage groove 55.

[0061] The top of the right angle groove 51 extends to the inner wall of the lower mold 14, the end of the curved rod 52 away from the stripping plate 36 penetrates through the support plate 17 and extends to the inside of the storage groove 55, and four right angle plates 50 are arranged in the inside of the lower mold 14, the four right angle plates 50 will support and limit the four edges of the bottom of the automobile lamp, the storage groove 55 and the right angle groove 51 are in communication, the groove push plate 53 is located in the inside of the storage groove 55, the surface of the rolling rod 54 extends to the outer end of the groove push plate 53, and the top of the rolling rod 54 is in contact with the bottom of the right angle plate 50.

[0062] In use, the hydraulic telescopic frame 15 is activated to begin operation. The hydraulic telescopic frame 15 pushes the moving plate 10 to slide on the surface of the limit rod 2. As the moving plate 10 moves, it drives the pressing plate 16 and the upper mold 13 to move. When the bottom of the pressing plate 16 moves to the top of the lower mold 14, the sealing components 4 separate, causing the feed hole 11 to open. The raw material is then poured into the conical frame 12 and flows through the feed hole 11 into the lower mold 14 to complete the injection molding operation. After injection molding is completed, the hydraulic telescopic frame 15 is activated to push the moving plate 10 downward. The pressing plate 16 and the lower mold 14 work together to form the automotive headlight. The hydraulic telescopic frame 15 automatically pushes the upper mold 13 and the lower mold 14 to open and close, avoiding the need for manual operation of the upper mold 13. If burns occur during assembly with the lower mold 14, after the bottom of the pressing plate 16 moves to the top of the lower mold 14, the elastic rod 20 will use its elasticity to push the sealing plate 24 to move towards the outer end of the pressing plate 16. The sealing plate 24 will slide inside the slide groove 25, which limits the sealing plate 24 and improves its stability during movement. After the end of the sealing plate 24 moves to the outer end of the pressing plate 16, it will contact the upper surface of the inclined plate 22. At this time, the feed hole 11 is open. After the raw material is added, the moving plate 10 moves downward, and the inclined plate 22 uses its slope to press the end of the sealing plate 24. When the sealing plate 24 moves downward, it will move with the inclined plate 22 towards the bottom of the feed hole 11. After the pressing plate 16 contacts the inner wall of the lower mold 14, the end of the sealing plate 24 also contacts the inner wall of the lower mold 14 to seal the feed hole 11, preventing the raw material inside the feed hole 11 from overflowing due to pressure when the pressing plate 16 moves downward into the lower mold 14, and preventing burns to operators. After the automotive headlights are injection molded, they need to be demolded. The hydraulic telescopic frame 15 is activated to push the moving plate 10 downward. At the same time, the moving plate 10 will pull the sliding rod 40 to the outer end of the pressure cylinder 32 through the bent rod 30 and pull the pressure plate 39 to move. When the bottom of the pressing plate 16 is level with the top of the lower mold 14, the pressure plate 39 will push the hydraulic oil in the pressure cylinder 32 into the inside of the infusion pipe 34. The light enters the interior of the circular tube 41 via the transfer frame 38 and contacts the bottom of the vertical rod 37. As the moving plate 10 continues to move upward, the pressure plate 39 squeezes the hydraulic oil inside the pressure cylinder 32, transmitting pressure to the interior of the circular tube 41. The hydraulic oil in the circular tube 41 then pushes the vertical rod 37 upward. During this movement, the vertical rod 37 pushes the ejector plate 36 away from the inner wall of the ejector groove 35. As the ejector plate 36 moves, it pushes the car headlight towards the outer end of the lower mold 14. Once the car headlight reaches the outer end of the lower mold 14, the residual heat on the surface of the lower mold 14 and the car headlight dissipates outward, preventing the heat from escaping and burning the operator. The ejector plate 36 then ejects the car headlight.The convenience of the automobile lamp in demolding is improved, the concave groove push plate 53 is pushed to move upward by the bending rod 52 when the demolding plate 36 moves upward, the concave groove push plate 53 drives the rolling rod 54 to extrude the right angle plate 50 in the moving process, at this time, the top of the right angle plate 50 will rotate with the inner wall top of the right angle groove 51 as a fulcrum, the end of the right angle plate 50 close to the demolding plate 36 will contact with the bottom of the automobile lamp, four right angle plates 50 are arranged in the inner part of the lower mold 14, the four right angle plates 50 will support and limit the four edges of the bottom of the automobile lamp, the stability of the automobile lamp in demolding is improved, and the automobile lamp is prevented from being stuck due to the inclination in demolding.

[0063] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A demolding mechanism for automobile lamp mold, comprising a base (1), the top of the base (1) is fixedly connected with a limiting rod (2), characterized in that, Also include: Injection parts (3), the injection parts (3) include support plate (17), the top of support plate (17) is fixedly connected with lower mould (14), the surface of support plate (17) is fixedly connected with hydraulic telescopic stand (15), the upper surface of hydraulic telescopic stand (15) is fixedly connected with moving plate (10), the bottom of moving plate (10) is fixedly connected with pressing plate (16); Sealing parts (4), the sealing parts (4) include chute (25), the bottom of pressing plate (16) is opened in chute (25), the inside of pressing plate (16) is opened in limit hole (21); Demoulding parts (5), the demoulding parts (5) include circular tube (41), the top of circular tube (41) is fixedly connected with the bottom of support plate (17), the inner wall bottom of lower mould (14) is opened in demoulding groove (35), the inside of demoulding groove (35) is provided with demoulding plate (36), the bottom of demoulding plate (36) is fixedly connected with vertical rod (37); Extrusion parts (6), the extrusion parts (6) include right angle groove (51), the inner wall bottom of lower mould (14) is opened in right angle groove (51), the inner wall top of right angle groove (51) is hinged with right angle plate (50), the surface of right angle plate (50) is in contact with the inner wall of right angle groove (51); The injection parts (3) include upper mould (13), the top of upper mould (13) is fixedly connected with the bottom of moving plate (10), the top of moving plate (10) is opened in feeding hole (11), the top of moving plate (10) is fixedly connected with conical frame (12), the inner wall of moving plate (10) is slidingly connected with the surface of limit rod (2); The inner wall of upper mould (13) is in contact with the surface of lower mould (14), the surface of pressing plate (16) is in contact with the inner wall of lower mould (14), the inner wall of support plate (17) is fixedly connected with the surface of limit rod (2); The support plate (17) is below the moving plate (10), the moving plate (10) and support plate (17) are centrally symmetrically arranged through hydraulic telescopic stand (15), the number of limit rod (2) is four, four limit rod (2) are located at the top of four corners of base (1); The top of limit rod (2) extends to the top outer end of moving plate (10), the bottom of feeding hole (11) completely penetrates pressing plate (16), the support plate (17) is above base (1), the conical frame (12) and feeding hole (11) are in communication; The sealing parts (4) include elastic rod (20), the end of elastic rod (20) is fixedly connected with the inner wall of limit hole (21), the bottom of elastic rod (20) is fixedly connected with sealing plate (24), the top of lower mould (14) is opened in through hole (23), the inner wall of through hole (23) is fixedly connected with inclined plane plate (22); The bottom of the limiting hole (21) and the top of the sliding groove (25) are in communication with each other, the number of the sealing plates (24) is two, and the two sealing plates (24) are symmetrically arranged with the feeding hole (11) as the center; The end of the two sealing plates (24) close to each other is in contact with each other, the end of the two sealing plates (24) away from each other is arranged horizontally on the surface of the pressing plate (16), the bottom of the sealing plate (24) is arranged horizontally on the bottom of the pressing plate (16), the sealing plate (24) is located at the end of the elastic rod (20) away from the limiting hole (21), the surface of the sealing plate (24) is in sliding connection with the inner wall of the sliding groove (25), and the top of the inclined plate (22) extends to the top outer end of the lower mold (14).

2. The mold stripping mechanism for an automotive lamp as set forth in claim 1, characterized in that: The demolding component (5) comprises a transmission frame (38), the top of the transmission frame (38) is in communication with the bottom of the circular pipe (41), the end of the transmission frame (38) is fixedly connected with a mounting frame (33), the top of the mounting frame (33) is connected with a pressure cylinder (32), the inner wall of the pressure cylinder (32) is in sliding connection with a pressure plate (39), the top of the pressure plate (39) is fixedly connected with a sliding rod (40), the top of the sliding rod (40) is fixedly connected with a bent rod (30), the end of the bent rod (30) away from the sliding rod (40) is fixedly connected with the top of the moving plate (10), and the upper surface of the pressure cylinder (32) is communicated with a liquid delivery pipe (34); The end of the liquid delivery pipe (34) away from the pressure cylinder (32) is in communication with the top of the transmission frame (38), the surface of the supporting plate (17) is provided with a positioning hole (31), the inner wall of the circular pipe (41) is provided with a stabilizing groove (42), and the lower surface of the vertical rod (37) is fixedly connected with a sliding block (43).

3. The mold stripping mechanism for an automotive lamp as set forth in claim 2, characterized in that: The top of the circular pipe (41) is in communication with the demolding groove (35), the surface of the vertical rod (37) is in sliding connection with the inner wall of the circular pipe (41), the surface of the sliding block (43) is in sliding connection with the inner wall of the stabilizing groove (42), and the top of the sliding rod (40) penetrates through the pressure cylinder (32) and extends to the top outer end of the pressure cylinder (32).

4. The mold stripping mechanism for an automotive lamp mold according to claim 3, wherein: The extrusion component (6) comprises a bent rod (52), the top of the bent rod (52) is fixedly connected with the bottom of the demolding plate (36), the end of the bent rod (52) away from the demolding plate (36) is fixedly connected with a groove push plate (53), and the inner wall of the groove push plate (53) is rotatably connected with a rolling rod (54). The inside of the supporting plate (17) is provided with a storage groove (55).

5. A mold stripping mechanism for an automotive lamp mold as defined in claim 4 wherein: The top of the right-angle groove (51) extends to the inner wall of the lower mold (14), one end of the curved rod (52) away from the stripper plate (36) penetrates the support plate (17) and extends to the inside of the storage groove (55), the storage groove (55) and the right-angle groove (51) are in communication with each other, the groove push plate (53) is located in the inside of the storage groove (55), the surface of the rolling rod (54) extends to the outer end of the groove push plate (53), and the top of the rolling rod (54) is in contact with the bottom of the right-angle plate (50).

Citation Information

Patent Citations

  • Demolding mechanism of automobile injection mold

    CN218477078U