Injection mold for light leakage prevention type car lamp

Abstract

The utility model relates to the technical field of car lamp mold processing, in particular to a light leakage prevention type car lamp injection mold which comprises a horizontally-arranged base platform, an inner cavity is formed in the base platform, a channel penetrating through the interior of the inner cavity is formed in the upper end of the interior of the inner cavity, a supporting plate and a protection frame are arranged in the channel, and the protection frame is made of ceramic materials. A door plate covers the opening position of the front face of the inner cavity, one end of the door plate is hinged to the front face of the base table through a door hinge, and the other end of the door plate is opened and closed with one side of the base table through a door lock catch. Through cooperation of the upper mold and the lower mold, stable injection molding machining of the light leakage prevention type vehicle lamp and the opening and closing mode of the upper mold and the lower mold can be achieved, the edge quality of the vehicle lamp after machining and shaping can be guaranteed to the maximum degree, and through vertical movement of the protection frame, surrounding protection can be conducted on the vehicle lamp in the front-back direction and the left-right direction after the upper mold and the lower mold are closed; and the situation that workers are scalded can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamp mould processing, in particular to an injection mould for a light leakage-proof vehicle lamp. Background Art

[0002] Anti-light leakage type lamps refer to lamps that are designed and manufactured with special attention to sealing performance, aiming to prevent external light from penetrating from the edges or around the lamps, thereby affecting the driver's line of sight or the comfort of passengers in the car.

[0003] Anti-light leakage headlights usually involve the following technical measures:

[0004] Sealing ring design: Use rubber or plastic sealing rings at the interface of the headlight housing to increase the sealing between the various parts of the headlight and prevent light from leaking from the seams;

[0005] Injection molding: Use precision injection molding technology to manufacture the headlight housing to ensure that the housing parts are tightly combined and seamless, reducing the possibility of light leakage;

[0006] Precision assembly: The various components of the headlights need to be precisely aligned during assembly to ensure that there is no light leakage due to improper assembly;

[0007] Waterproof and dustproof: In addition to preventing light leakage, high-quality car lights should also have waterproof and dustproof functions, which also helps to improve the sealing performance of the car lights.

[0008] Anti-light leakage headlights can not only improve the appearance quality of the car, but also enhance driving safety, especially when driving at night or when facing oncoming headlights, they can effectively reduce glare and improve the driver's visual comfort.

[0009] With the development of the automobile industry and the increasing demand of consumers for safety and comfort, anti-light leakage headlights have become an important configuration of modern automobiles.

[0010] At present, car lights are basically produced by injection molding during processing. During the injection molding process, after the high-temperature hot-melt liquid plastic is injected into the mold, the overall temperature of the mold will rise. If it is not protected around it, if the staff accidentally touches it, it is easy to get burned. At the same time, if proper insulation is not performed, it is easy for the outer part to be fixed quickly and the middle part to be fixed slowly during cooling and shaping, making it difficult for the staff to control the cooling time, which will affect both production efficiency and quality. Utility Model Content

[0011] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes an anti-light leakage type injection mold for a vehicle lamp.

[0012] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0013] An injection mold for a light leakage-proof vehicle lamp is designed, comprising a horizontally arranged base, an inner cavity is arranged inside the base, and a channel penetrating the inner cavity is opened at the upper end thereof, and a support plate and a protective frame are respectively arranged in the channel, the protective frame is made of a ceramic material, a front opening position of the inner cavity is covered with a door panel, one end of the door panel is hinged to the front of the base through a door hinge, and the other end of the door panel is opened and closed with one side of the base through a door lock, the upper end surface of the support plate is flush with the upper end surface of the base, the lower end surface of the support plate is provided with a support column, and the upper end of the support column is fixed to the surface of the support plate by screws The lower end of the support column is fixedly assembled with the inner bottom end of the inner cavity by screws, the outer wall surface of the protective frame is slidably and tightly set with the inner wall surface of the channel, the inner wall surface of the protective frame is slidably and tightly set with the outer ring wall of the support plate, a first hydraulic cylinder is arranged inside the inner cavity, a first piston rod for telescopic operation is arranged inside the first hydraulic cylinder, and the other end of the first piston rod extends upward through the interior of the first hydraulic cylinder, a connecting plate is arranged at the upper end of the first piston rod, and one end of the connecting plate is fixed to the outer wall surface of the protective frame by screws, a lower mold is arranged on the upper end surface of the support plate, and the upper end of the lower mold is covered with an upper mold.

[0014] In detail, the upper end surface of the base is provided with columns, the number of columns is two and they are symmetrically distributed along the upper end surface of the base, the upper ends of the two columns are provided with top plates, and the lower end surface of the top plate is fixed to the upper ends of the columns by screws.

[0015] In detail, a second hydraulic cylinder is provided inside the top plate, the connection position between the second hydraulic cylinder and the top plate is fixed by screws, a second piston rod for extension and retraction is provided inside the second hydraulic cylinder, and the lower end of the second piston rod is fixed to the upper end surface of the upper mold by screws.

[0016] In detail, an injection molding interface is arranged in the middle of the upper mold, the lower end of the injection molding interface passes through the interior of the upper mold and communicates with the mold groove thereof, and the connection position between the injection molding interface and the upper mold is arranged by welding and sealing.

[0017] In detail, an inner sleeve is provided through the interior of the support plate, the number of the inner sleeves is two and they are symmetrically distributed along the longitudinal center axis of the support plate, and the connection between the inner sleeve and the support plate is fixed by welding.

[0018] In detail, a threaded column is arranged on the lower end surface of the lower mold, the upper end of the threaded column is welded and fixed to the surface of the lower mold, and the surface of the threaded column is slidably penetrated by the inside of the built-in sleeve.

[0019] In detail, a threaded cap is provided at the lower end of the threaded column, and a knob is provided on the outer ring wall of the threaded cap. There are two knobs and they are evenly distributed on the outer ring wall of the threaded cap. The inner thread surface of the threaded cap and the outer thread surface of the threaded column are threadedly connected with each other.

[0020] The design scheme proposed by the utility model has the following beneficial effects during application:

[0021] 1. Through the cooperation of the upper mold and the lower mold, the stable injection molding of the light leakage-proof headlight can be achieved. The opening and closing method of the upper and lower molds can also guarantee the edge quality of the headlight after processing and shaping to the greatest extent. Through the up and down movement of the protective frame, it can be surrounded and protected in four directions of front, back, left and right after the upper and lower molds are closed, which can avoid scalding of the staff.

[0022] 2. The protective cover can be moved up and down by extending and retracting the first piston rod of the first hydraulic cylinder, so that it can surround the lower mold and slide with the upper mold to achieve stable thermal insulation protection. The threaded cap and the threaded column are threadedly connected to each other, so that the lower mold and the support plate can be quickly disassembled, which is convenient for regular cleaning or replacement of the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is an oblique schematic diagram of the overall structure of the utility model;

[0025] Figure 3 It is a front structural schematic diagram of the utility model;

[0026] Figure 4 It is an enlarged schematic diagram of point a of the utility model;

[0027] Figure 5 It is a top view schematic diagram of the connection plate and the protection frame of the utility model.

[0028] In the figure: 10, base; 11, inner cavity; 12, door panel; 13, support column; 14, support plate; 15, protection frame; 16, first hydraulic cylinder; 17, connecting plate; 18, lower mold; 19, upper mold; 20, column; 21, top plate; 22, second hydraulic cylinder; 23, injection molding interface; 30, built-in sleeve; 31, threaded column; 32, threaded cap. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Reference Figure 1-Figure 5 , an injection mold for a light leakage-proof vehicle lamp, comprising a horizontally arranged base 10, an inner cavity 11 is arranged inside the base 10, and a channel running through the inner cavity 11 is opened at the upper end thereof, and a support plate 14 and a protective frame 15 are respectively arranged in the channel, the protective frame 15 is made of a ceramic material, the front opening position of the inner cavity 11 is covered with a door panel 12, one end of the door panel 12 is hingedly connected to the front of the base 10 through a door hinge, and the other end of the door panel 12 is opened and closed with one side of the base 10 through a door lock buckle, the upper end surface of the support plate 14 is flush with the upper end surface of the base 10, the lower end surface of the support plate 14 is provided with a support column 13, and the upper end of the support column 13 is connected to the surface of the support plate 14 through The inner wall surface of the protective frame 15 is slidably fitted against the inner wall surface of the channel, and the inner wall surface of the protective frame 15 is slidably fitted against the outer wall of the support plate 14. A first hydraulic cylinder 16 is provided inside the inner cavity 11, and a first piston rod for extension and retraction is provided inside the first hydraulic cylinder 16, and the other end of the first piston rod extends upward through the interior of the first hydraulic cylinder 16, and a connecting plate 17 is provided at the upper end of the first piston rod, and one end of the connecting plate 17 is fixed to the outer wall surface of the protective frame 15 by screws, and a lower mold 18 is provided on the upper end surface of the support plate 14, and the upper end of the lower mold 18 is covered with an upper mold 19.

[0031] It should be further explained that a column 20 is provided on the upper end surface of the base 10. There are two columns 20 and they are symmetrically distributed along the upper end surface of the base 10. A top plate 21 is provided on the upper ends of the two columns 20. The lower end surface of the top plate 21 is fixed to the upper end of the column 20 by screws.

[0032] It should be further explained that a second hydraulic cylinder 22 is provided inside the top plate 21, and the connection position between the second hydraulic cylinder 22 and the top plate 21 is fixed by screws. A second piston rod for extension and retraction is provided inside the second hydraulic cylinder 22, and the lower end of the second piston rod is fixed to the upper end surface of the upper mold 19 by screws.

[0033] It should be further explained that an injection molding interface 23 is provided in the middle of the upper mold 19, the lower end of the injection molding interface 23 passes through the interior of the upper mold 19 and is connected to its mold groove, and the connection position between the injection molding interface 23 and the upper mold 19 is sealed by welding.

[0034] It should be further explained that an inner sleeve 30 is provided through the interior of the support plate 14 . There are two inner sleeves 30 symmetrically distributed along the longitudinal center axis of the support plate 14 . The connection between the inner sleeve 30 and the support plate 14 is fixed by welding.

[0035] It should be further explained that a threaded column 31 is provided on the lower end face of the lower mold 18, and the upper end of the threaded column 31 is welded and fixed to the surface of the lower mold 18. The surface of the threaded column 31 is slidably penetrated by the interior of the built-in sleeve 30, so that the lower mold 18 and the support plate 14 can be quickly positioned and docked.

[0036] It should be further explained that a threaded cap 32 is provided at the lower end of the threaded column 31, and a knob is provided on the outer ring wall of the threaded cap 32. There are two knobs and they are evenly distributed on the outer ring wall of the threaded cap 32. The internal thread surface of the threaded cap 32 and the external thread surface of the threaded column 31 are threadedly connected with each other, so that the lower mold 18 and the support plate 14 can be assembled and disassembled.

[0037] Working method: When the headlight needs to be injection molded, the second piston rod of the second hydraulic cylinder 22 is extended to move the upper mold 19 downward and close it with the lower mold 18. Then, the molten plastic is injected through the injection molding interface 23 to achieve the shaping of the headlight.

[0038] In order to prevent the workers from accidentally touching the high-temperature mold during processing, the first piston rod of the first hydraulic cylinder 16 is pushed forward to allow the protective frame 15 to move upward, thereby surrounding the lower mold 18 and slidingly connecting with the upper mold 19 in four directions of front, back, left and right, forming a thermal insulation protection effect.

[0039] When the lower mold 18 needs to be removed for cleaning or replacement, the door panel 12 is rotated to open, and the threaded cap 32 can be rotated to threadably separate it from the threaded column 31, so that the built-in sleeve 30 and the threaded column 31 can be slidably disengaged, thereby completing the separation of the lower mold 18 from the support plate 14.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold for a light leakage-proof vehicle lamp, comprising a horizontally arranged base (10), characterized in that: The base (10) is provided with an inner cavity (11) inside, and a channel running through the inner cavity (11) is provided at the upper end thereof, and a support plate (14) and a protective frame (15) are respectively provided in the channel, and the protective frame (15) is made of ceramic material. The front opening position of the inner cavity (11) is covered with a door panel (12), one end of the door panel (12) is hingedly connected to the front of the base (10) through a door hinge, and the other end of the door panel (12) is opened and closed with one side of the base (10) through a door lock, the upper end surface of the support plate (14) is flush with the upper end surface of the base (10), the lower end surface of the support plate (14) is provided with a support column (13), and the upper end of the support column (13) is fixed to the surface of the support plate (14) by screws, and the support column (13) ) is fixedly assembled with the inner bottom end of the inner cavity (11) by screws, the outer wall surface of the protective frame (15) is slidingly and tightly arranged with the inner wall surface of the channel, the inner wall surface of the protective frame (15) is slidingly and tightly arranged with the outer ring wall of the support plate (14), a first hydraulic cylinder (16) is arranged inside the inner cavity (11), a first piston rod for extension and retraction is arranged inside the first hydraulic cylinder (16), and the other end of the first piston rod extends upward through the interior of the first hydraulic cylinder (16), a connecting plate (17) is arranged at the upper end of the first piston rod, and one end of the connecting plate (17) is fixed to the outer wall surface of the protective frame (15) by screws, and a lower mold (18) is arranged on the upper end surface of the support plate (14), and the upper end of the lower mold (18) is covered with an upper mold (19).

2. The anti-light leakage type injection mold for a vehicle lamp according to claim 1, characterized in that: The upper end surface of the base (10) is provided with a column (20), the number of the columns (20) is two and they are symmetrically distributed along the upper end surface of the base (10), the upper ends of the two columns (20) are provided with a top plate (21), and the lower end surface of the top plate (21) is fixedly assembled with the upper end of the column (20) by screws.

3. The injection mold for a light leakage-proof vehicle lamp according to claim 2, characterized in that: A second hydraulic cylinder (22) is provided inside the top plate (21), and the connection position between the second hydraulic cylinder (22) and the top plate (21) is fixed by screws. A second piston rod for extension and retraction is provided inside the second hydraulic cylinder (22), and the lower end of the second piston rod is fixed to the upper end surface of the upper mold (19) by screws.

4. The injection mold for a light leakage-proof vehicle lamp according to claim 3, characterized in that: An injection molding interface (23) is provided in the middle of the upper mold (19), the lower end of the injection molding interface (23) penetrates the interior of the upper mold (19) and is connected to its mold groove, and the connection position between the injection molding interface (23) and the upper mold (19) is sealed by welding.

5. The anti-light leakage type injection mold for a vehicle lamp according to claim 1, characterized in that: An internal sleeve (30) is provided through the support plate (14), the number of the internal sleeves (30) is two and they are symmetrically distributed along the longitudinal center axis of the support plate (14), and the connection between the internal sleeves (30) and the support plate (14) is fixed by welding.

6. The anti-light leakage type injection mold for a vehicle lamp according to claim 5, characterized in that: The lower end surface of the lower mold (18) is provided with a threaded column (31), the upper end of the threaded column (31) is welded and fixed to the surface of the lower mold (18), and the surface of the threaded column (31) is slidably penetrated by the interior of the built-in sleeve (30).

7. The injection mold for a light leakage-proof vehicle lamp according to claim 6, characterized in that: A threaded cap (32) is disposed at the lower end of the threaded column (31), and a knob is disposed on the outer wall of the threaded cap (32). The number of the knobs is two and they are evenly distributed on the outer wall of the threaded cap (32). The inner thread surface of the threaded cap (32) and the outer thread surface of the threaded column (31) are threadably connected to each other.

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