Car lamp mold ejection device
By designing a secondary ejection device for the car headlight mold, using hydraulic drive and inclined block roller structure to achieve time difference ejection, the problem of plastic part breakage and mold wear caused by single ejection is solved, and the demolding efficiency and mold life are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-13
- Publication Date
- 2026-03-10
AI Technical Summary
Existing automotive headlight mold ejection devices are prone to causing plastic parts to crack or deform when ejecting thin-walled, deep-cavity or complex-shaped products in a single operation, and the molds suffer severe wear, affecting product quality and mold life.
A vehicle headlight mold ejection device was designed, which adopts a two-stage ejection structure. The first and second ejection plates are driven by hydraulic cylinders to perform the first and second ejection respectively. The two ejections with time difference are achieved by using inclined blocks and rollers to disperse the demolding force and avoid interference between mold components.
It improves demolding efficiency, ensures product quality, reduces mold wear and damage, and extends mold life.
Smart Images

Figure CN223982102U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of car lamp injection mold, especially relates to a car lamp mold ejection device. BACKGROUND
[0002] The injection mold generally refers to injection molding, and the plastic molding is also called injection molding, which is a kind of injection and molding forming method, and the injection molding method has the advantages of fast production speed, high efficiency, automatic operation, various colors and shapes, and the size can be from simple to complex, and the product size is accurate, the product is easy to update, and the product with complex shape can be formed. In the process of manufacturing car lamp, the injection mold is usually used for processing and forming the car lamp.
[0003] At present, the existing car lamp mold ejection device is mostly one-time ejection, and for thin-walled deep cavity plastic parts or complex-shaped products, one-time ejection may cause the plastic parts to be broken or deformed, affecting the product quality, in addition, one-time ejection is easy to cause the wear and damage of the mold, thereby reducing the service life of the mold. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of car lamp mold ejection device to solve the technical problems raised in the background art.
[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a kind of car lamp mold ejection device, including base, the upper surface both sides of the base are provided with support plate, the top of two support plates is provided with fixed mould, the upper surface of the fixed mould is provided with the male die in middle part, the upper surface of the first top plate is provided with the convex plate in middle part, the surface of the first top plate is fixedly provided with two first top rods of symmetry distribution, the upper surface of both ends of the first top plate is provided with secondary ejection structure, the upper surface of both ends of the second top plate is provided with the top column, three second top rods of orderly distribution are provided between two top columns, and the top end of the top column, first top rod and second top rod is all through fixed mould and male die.
[0006] Preferably, the bottom middle part of the first top plate is provided with a hydraulic cylinder, the hydraulic cylinder is installed below the base, and the surface middle part of the base is provided with a limiting hole slidably connected with the hydraulic cylinder piston rod.
[0007] Preferably, the bottom of the first top rod is provided with a positioning column, the upper surface of the base is provided with two positioning holes corresponding to the positioning column, and the positioning column and the positioning hole are slidably connected.
[0008] Preferably, the upper surface of the base is provided with a first support pad on both sides of the positioning hole, and the upper surface of the convex plate is provided with a second support pad on both sides.
[0009] Preferably, the length of the first top plate is less than the distance between the two support plates, the length of the second top plate is less than the length of the first top plate, and the length of the convex plate is less than the length of the second top plate.
[0010] Preferably, the surface of the second top plate is provided with two first sliding holes corresponding to the first top rod, and the first top rod is in sliding connection with the first sliding hole.
[0011] Preferably, the surface of the fixed die is provided with two through holes corresponding to the top column, the top column is in sliding connection with the through hole, the surface of the convex die is respectively provided with two second sliding holes corresponding to the first top rod and third sliding holes corresponding to the three second top rods, the first top rod is in sliding connection with the second sliding hole, and the second top rod is in sliding connection with the third sliding hole.
[0012] Preferably, the secondary ejection structure comprises a connecting block and an inclined block fixedly connected with the connecting block, the connecting portion of the connecting block and the inclined block is rotatably connected with the upper surface of the first top plate through a rotating shaft, the top end of the inclined block is provided with a first roller, the end of the connecting block away from the inclined block is provided with a second roller, the opposite side of each of the two support plates is provided with an L-shaped port, the first roller is located in the L-shaped port, the upper surface of the second roller is in contact with the bottom of the second top plate, and the upper surface of the first roller can be in contact with the top end inner wall of the L-shaped port.
[0013] The car lamp mold ejection device has the following advantages:
[0014] The secondary ejection of the car lamp mold can be realized, and the two ejections with a time difference can be carried out in the mold, when the first ejection cannot completely take out the formed product from the mold, the second ejection can smoothly complete the demolding, so that the demolding efficiency is improved, and through the secondary ejection, mold damage caused by mold assembly interference can be avoided, so that the mold works more stably and reliably, in addition, the secondary ejection can disperse the demolding force, ensures the product quality, and the stable secondary ejection structure can reduce the abrasion and damage of the mold, thereby prolonging the service life of the mold. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiments, it should be understood, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.
[0016] Figure 1 It is the whole structure schematic view of the utility model;
[0017] Figure 2 It is the structure schematic view of the first roof in the utility model;
[0018] Figure 3 It is the structure schematic view of the second roof in the utility model;
[0019] Figure 4 It is the structure schematic view of the fixed mould in the utility model.
[0020] Marking in the drawing: 1, base; 2, support plate; 3, L type mouth; 4, fixed mould; 5, male die; 6, first roof; 7, positioning hole; 8, first support pad; 9, positioning column; 10, first roof bar; 11, convex plate; 12, secondary jacking structure; 13, second roof; 14, roof column; 15, second roof bar; 16, connecting block; 17, inclined block; 18, first roller; 19, second roller; 20, second support pad; 21, first sliding hole; 22, through hole; 23, second sliding hole; 24, third sliding hole. DETAILED DESCRIPTION
[0021] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.
[0022] In the description of the embodiments of the utility model, it is understood that the orientation or positional relationship indicated by the terms "length", "vertical", "horizontal", "top", "bottom" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the utility model.
[0023] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0024] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0025] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present application. In order to simplify the disclosure of the embodiments of the present application, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present application. In addition, the embodiments of the present application can refer to the same reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which does not indicate the relationship between the various embodiments and / or settings discussed.
[0026] In order to better understand the purpose, structure and function of the present application, the present application will be further described in detail below.
[0027] As shown in Figures 1-4 The present application discloses a car lamp mold ejection device, which comprises a base 1, the upper surface of the base 1 is provided with a support plate 2 on both sides, the top of the two support plates 2 is provided with a fixed mold 4, the upper surface of the fixed mold 4 is provided with a convex mold 5 in the middle part, the upper part of the fixed mold 4 is provided with a movable mold corresponding thereto, which will not be described in detail here, when the machining is completed, the movable mold moves up, and the ejection device can be started to eject the workpiece. The upper part of the base 1 is provided with a first top plate 6, the middle part of the bottom of the first top plate 6 is provided with a hydraulic cylinder, the hydraulic cylinder is installed below the base 1, and the middle part of the surface of the base 1 is provided with a limiting hole which is slidably connected with the piston rod of the hydraulic cylinder, through the setting of the hydraulic cylinder, the first top plate 6 can be driven to move up and down. The middle part of the upper surface of the first top plate 6 is provided with a convex plate 11, two symmetrical first top rods 10 are fixedly penetrated through the surface of the first top plate 6, the bottom of the first top rod 10 is provided with a positioning column 9, the upper surface of the base 1 is provided with two positioning holes 7 corresponding to the positioning column 9, and the positioning column 9 is slidably connected with the positioning hole 7, when the first top plate 6 moves downward, the positioning column 9 will be inserted into the positioning hole 7.
[0028] The upper surfaces of both ends of the first top plate 6 are provided with secondary lifting structures 12. A second top plate 13 is provided above the protruding plate 11. The upper surfaces of both ends of the second top plate 13 are provided with top pillars 14. Three orderly distributed second top rods 15 are provided between the two top pillars 14, and the top ends of the top pillars 14, the first top rods 10, and the second top rods 15 all penetrate the fixed mold 4 and the punch 5. The upper surface of the base 1 is provided with first support pads 8 on both sides of the positioning hole 7, and the upper surface of the protruding plate 11 is provided with second support pads 20 on both sides. The first support pads 8 and the second support pads 20 can effectively prevent the first top plate 6 from making hard contact with the base 1 and the second top plate 13 from making hard contact with the protruding plate 11, respectively. The length of the first top plate 6 is less than the distance between the two support plates 2, the length of the second top plate 13 is less than the length of the first top plate 6, and the length of the protruding plate 11 is less than the length of the second top plate 13, so that the first top plate 6 can move freely up and down between the two support plates 2. The surface of the second top plate 13 is provided with two first sliding holes 21 corresponding to the first ejector pin 10. The first ejector pin 10 is slidably connected to the first sliding holes 21. The surface of the fixed mold 4 is provided with two through holes 22 corresponding to the ejector pin 14. The ejector pin 14 is slidably connected to the through holes 22. The surface of the punch 5 is provided with two second sliding holes 23 corresponding to the first ejector pin 10 and three third sliding holes 24 corresponding to the three second ejector pins 15. The first ejector pin 10 is slidably connected to the second sliding holes 23, and the second ejector pin 15 is slidably connected to the third sliding holes 24. The secondary lifting structure 12 includes a connecting block 16 and an inclined block 17 fixedly connected to the connecting block 16. The connection between the connecting block 16 and the inclined block 17 is rotatably connected to the upper surface of the first top plate 6 through a rotating shaft. The top of the inclined block 17 is provided with a first roller 18, and the end of the connecting block 16 away from the inclined block 17 is provided with a second roller 19. Both support plates 2 are provided with L-shaped openings 3 on opposite sides. The first roller 18 is located in the L-shaped opening 3. The upper surface of the second roller 19 contacts the bottom of the second top plate 13, and the upper surface of the first roller 18 can contact the inner wall of the top of the L-shaped opening 3. When the bottom of the first top plate 6 contacts the upper surface of the first support pad 8, the positioning pin 9 is in the positioning hole 7. At this time, there is a gap between the upper surface of the first roller 18 and the inner wall of the top of the L-shaped opening 3. When the hydraulic cylinder is activated to push the first top plate 6 upward, the first top plate 6 will drive the second top plate 13 to move upward, thereby causing the first push rod 10 and the second push rod 13 to move upward. The rod 15 and the ejector pin 14 lift the workpiece on the fixed mold 4 and the punch 5. When the first roller 18 moves up to contact the inner wall of the top of the L-shaped opening 3, the first ejector plate 6 stops moving. At this time, the first ejector pin 10 stops moving along with the first ejector plate 6. The secondary lifting structure 12 rotates around the axis of the rotating shaft, so that the second roller 19 pushes the second ejector plate 13 to move up, so that the second ejector plate 13 drives the ejector pin 14 and the second ejector pin 15 to continue to move up, thereby realizing the secondary lifting of the workpiece.
[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A vehicle lamp mold ejection device characterized by: The utility model provides a mould, including base (1), both sides of the upper surface of base (1) are provided with support plate (2), the top of two support plate (2) is provided with fixed mould (4), the upper surface of fixed mould (4) is provided with male die (5) in the middle part, the upper surface of base (1) is provided with first top plate (6) upwards, the upper surface of first top plate (6) is provided with convex board (11) in the middle part, the surface of first top plate (6) is fixed with two symmetrical distribution's first top rod (10) through, the upper surface of both ends of first top plate (6) is provided with secondary jacking structure (12), the upper surface of both ends of second top plate (13) is provided with top column (14), the top column (14) between two is provided with three orderly distribution's second top rod (15), and the top of top column (14), first top rod (10) and second top rod (15) all penetrates fixed mould (4) and male die (5).
2. A vehicle lamp mold ejection device as defined in claim 1, wherein: The bottom middle part of the first top plate (6) is provided with a hydraulic cylinder, the hydraulic cylinder is installed below the base (1), and the surface middle part of the base (1) is provided with a limiting hole in sliding connection with the hydraulic cylinder piston rod.
3. A vehicle lamp mold ejection device as defined in claim 1 wherein: The bottom of the first top rod (10) is provided with a positioning column (9), the upper surface of the base (1) is provided with two positioning holes (7) corresponding to the positioning column (9), and the positioning column (9) is in sliding connection with the positioning hole (7).
4. A vehicle lamp mold ejection device as defined in claim 3, wherein: The upper surface of the base (1) is provided with a first support pad (8) on both sides of the positioning hole (7), and the upper surface of the convex plate (11) is provided with a second support pad (20) on both sides.
5. A vehicle lamp mold ejection device as defined in claim 1 wherein: The length of the first top plate (6) is less than the distance between the two support plates (2), the length of the second top plate (13) is less than the length of the first top plate (6), and the length of the convex plate (11) is less than the length of the second top plate (13).
6. A vehicle lamp mold ejection device as defined in claim 1, wherein: The surface of the second top plate (13) is provided with two first sliding holes (21) corresponding to the first top rod (10), and the first top rod (10) is in sliding connection with the first sliding hole (21).
7. A vehicle lamp mold ejection device as defined in claim 1 wherein: The surface of the fixed mould (4) is provided with two through holes (22) corresponding to the top column (14), the top column (14) is in sliding connection with the through hole (22), the surface of the male die (5) is provided with two second sliding holes (23) corresponding to the first top rod (10) and three third sliding holes (24) corresponding to the three second top rods (15), respectively, the first top rod (10) is in sliding connection with the second sliding hole (23), and the second top rod (15) is in sliding connection with the third sliding hole (24).
8. A vehicle lamp mold ejection device as defined in claim 1 wherein: The secondary jacking structure (12) comprises a connecting block (16) and an inclined block (17) fixedly connected with the connecting block (16), the connecting part of the connecting block (16) and the inclined block (17) is rotatably connected with the upper surface of the first top plate (6) through a rotating shaft, the top end of the inclined block (17) is provided with a first roller (18), one end of the connecting block (16) away from the inclined block (17) is provided with a second roller (19), the two supporting plates (2) are provided with L-shaped openings (3) on opposite sides, the first roller (18) is located in the L-shaped opening (3), the upper surface of the second roller (19) is in contact with the bottom of the second top plate (13), and the upper surface of the first roller (18) can be in contact with the top end inner wall of the L-shaped opening (3).