Injection mold with high forming quality for car lamp
By designing the ejector pin of the injection mold for automotive lights to impact the rotating plate and vibrate to separate the material, and using a buffer pad and a casing for demolding, the problem of incomplete material was solved, demolding quality and work efficiency were improved, and enterprise costs were reduced.
Patent Information
- Application Number
- CN202423287527.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing injection molds often result in incomplete material during demolding, leading to low yield rates, increased secondary costs for enterprises, and no improvement in work efficiency.
A high-quality injection mold for automotive lights was designed. The mold uses a push rod to lift the fixed plate and the long plate, which then impact the rotating plate to vibrate and separate the material. A buffer pad and a casing are used for demolding to ensure the integrity of the material.
This enabled complete demolding of materials, improved yield, increased work efficiency, and reduced secondary costs for enterprises.
Smart Images
Figure CN223790908U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molds, and in particular to an injection mold for automotive lights with high molding quality. Background Technology
[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of colors and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates, and can create complex shapes. Injection molding is suitable for mass production and molding of complex-shaped products. It involves injecting fully molten plastic material, stirred by a screw at a specific temperature, into a mold cavity under high pressure, and then cooling and solidifying to obtain the molded product. This method is suitable for the mass production of complex-shaped parts and is one of the important processing methods.
[0003] Existing equipment often demolds materials directly without pre-processing them, which can lead to incomplete demolding, reduced yield, increased secondary costs, and a lack of efficiency improvement. Therefore, further improvements are needed. Utility Model Content
[0004] The purpose of this invention is to solve the problem of inconvenience in completely demolding materials in the existing technology, and to propose an injection mold for automotive lights with high molding quality.
[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:
[0006] A high-quality injection mold for automotive lights includes an upper mold shell, a lower mold shell at the bottom of the upper mold shell, positioning rods fixedly connected to both sides of the top of the lower mold shell, a mold fixedly connected to the top of the lower mold shell, an injection hole inside the upper mold shell, springs fixedly connected to both sides of the bottom of the lower mold shell, pressure plates fixedly connected to the top of the two springs, connecting plates fixedly connected to both sides of the top of the pressure plates, a push rod fixedly connected to the top of the pressure plates, a fixing plate fixedly connected to the outside of the push rod, four long plates fixedly connected to the outside of the fixing plate, rotating rods connected to both sides of the inside of the mold via bearings, multiple rotating plates fixedly connected to the outside of the two rotating rods, sliding grooves on both sides of the outside of the upper mold shell, two sliders slidably connected inside each of the two sliding grooves, and pressure rods fixedly connected to the bottom of each of the four sliders.
[0007] Preferably, both positioning rods extend into the interior of the upper mold shell and contact both sides of the interior of the upper mold shell, and both connecting plates extend into the exterior of the lower mold shell and contact the lower mold shell.
[0008] Preferably, the plurality of rotating plates are arranged in a linear shape, and the shape of the plurality of rotating plates is set to an arc shape.
[0009] Preferably, the bottoms of the four sliders are in contact with the top sides of the two connecting plates, and a connecting rod is fixedly connected between the two sliders.
[0010] Preferably, there is a gap between the mold and the upper mold shell, and the gap is set in a hemispherical shape.
[0011] Preferably, a sleeve is slidably connected inside the mold, and a buffer pad is fixedly connected to the top of the inner cavity of the sleeve.
[0012] Preferably, the push rod is slidably connected to the housing, and there is a distance between the push rod and the buffer pad.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In this invention, the push rod moves synchronously and drives the fixed plate and the long plate to rise. During the rapid rise of the long plate, it will impact the rotating plate, so that the rotating plate will impact the inside of the mold after rotation, so as to achieve the effect of vibration separation of the injection material outside the mold.
[0015] In this invention, after the material is vibrated, the ejector rod will still rise, and the buffer pad will cushion the ejector rod. When the worker separates the upper mold shell from the lower mold shell, the material at the top of the mold will not be restricted. At this time, the ejector rod will push the buffer pad under the action of the spring and drive the sleeve shell to be ejected upward. During the ejection process, the sleeve shell will demold the formed material, thereby ensuring the integrity of demolding. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0019] Figure 3 This is a schematic diagram showing the partial structural separation of this utility model;
[0020] Figure 4 This utility model Figure 1Enlarged diagram of point A in the diagram.
[0021] The numbers in the diagram are: 1. Upper mold shell; 2. Lower mold shell; 3. Positioning rod; 4. Mold; 5. Spring; 6. Pressure plate; 7. Connecting plate; 8. Ejector rod; 9. Fixing plate; 10. Long plate; 11. Rotating rod; 12. Rotating plate; 13. Slider; 14. Pressure rod; 15. Connecting rod; 16. Shell; 17. Buffer pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Example 1: This example provides a high-quality injection mold for automotive lights. See [link to example]. Figure 1-4 Specifically, it includes an upper mold shell 1, a lower mold shell 2 at the bottom of the upper mold shell 1, positioning rods 3 fixedly connected to both sides of the top of the lower mold shell 2, a mold 4 fixedly connected to the top of the lower mold shell 2, an injection hole inside the upper mold shell 1, springs 5 fixedly connected to both sides of the bottom of the inner cavity of the lower mold shell 2, pressure plates 6 fixedly connected to the top of the two springs 5, connecting plates 7 fixedly connected to both sides of the top of the pressure plates 6, a push rod 8 fixedly connected to the top of the pressure plates 6, a fixing plate 9 fixedly connected to the outside of the push rod 8, four long plates 10 fixedly connected to the outside of the fixing plate 9, rotating rods 11 connected to both sides of the inside of the mold 4 via bearings, multiple rotating plates 12 fixedly connected to the outside of the two rotating rods 11, sliding grooves on both sides of the outside of the upper mold shell 1, two sliders 13 slidably connected inside the two sliding grooves, and pressure rods 14 fixedly connected to the bottom of the four sliders 13.
[0024] In this embodiment, both positioning rods 3 extend into the interior of the upper mold shell 1 and contact the two sides inside the upper mold shell 1, and both connecting plates 7 extend into the exterior of the lower mold shell 2 and contact the lower mold shell 2, which facilitates the movement of the connecting plates 7.
[0025] In this embodiment, the multiple rotating plates 12 are arranged in a linear shape and the shape of the multiple rotating plates 12 is set to an arc shape, which can facilitate the rotating plates 12 to impact the mold 4.
[0026] In this embodiment, the bottoms of the four sliders 13 are in contact with the top sides of the two connecting plates 7 respectively, and a connecting rod 15 is fixedly connected between the two sliders 13, which makes it convenient for the staff to push the connecting rod 15 to move.
[0027] In this embodiment, there is a gap between the mold 4 and the upper mold shell 1. The gap is set in a hemispherical shape, which facilitates the molding of injection molding materials.
[0028] In the specific implementation process, such as Figures 1-3 As shown, when the workers need to splice the upper mold shell 1 and the lower mold shell 2, the positioning rod 3 is inserted into the upper mold shell 1 to connect the upper mold shell 1 and the lower mold shell 2. During the movement of the upper mold shell 1, the slider 13 and the pressure rod 14 will move synchronously. When the pressure rod 14 contacts the connecting plate 7, it will cause the latter to press down. During the pressing down process, the connecting plate 7 will simultaneously cause the pressure plate 6 to press down and the spring 5 to compress, so as to form an assembly.
[0029] When injection molding is required, the operator needs to place the device at the bottom of the injection molding equipment, and then connect the injection head of the equipment to the injection hole inside the upper mold shell 1, so that the injection material can be injected between the upper mold shell 1 and the lower mold shell 2, that is, the outside of the mold 4. After the injection molding is completed, the operator needs to push the connecting rod 15 laterally. During the pushing process, the connecting rod 15 will simultaneously drive the slider 13 and the pressure rod 14 to move. After the pressure rod 14 moves, it will leave the top of the connecting plate 7. At this time, since the top of the connecting plate 7 is not under pressure, the spring 5 will quickly... The rapid stretching and rebound cause the pressure plate 6 and connecting plate 7 to move upward. During the movement of the pressure plate 6, the ejector rod 8 will move upward rapidly in sync. During the movement of the ejector rod 8, the fixed plate 9 and the long plate 10 will rise simultaneously. During the rapid rise of the long plate 10, it will impact the rotating plate 12, so that the rotating plate 12 will impact the inside of the mold 4 after rotation, so as to achieve the effect of vibration separation of the injection material outside the mold 4. After the rotating plate 12 impacts the mold 4, the rotating plate 12 will fall back to its original position for subsequent use.
[0030] Example 2: Based on Example 1, this example also proposes that the mold 4 has a sliding connection of a sleeve 16, and a buffer pad 17 is fixedly connected to the top of the inner cavity of the sleeve 16, which can facilitate the fixing of the buffer pad 17 and the buffering of the push rod 8.
[0031] In this embodiment, the push rod 8 is slidably connected to the housing 16, and there is a distance between the push rod 8 and the buffer pad 17, which facilitates the sliding operation of the push rod 8.
[0032] In the specific implementation process, such as Figure 1 and Figures 3-4 As shown, after the material is vibrated, the ejector rod 8 will still rise, and then the buffer pad 17 will buffer the ejector rod 8. When the worker separates the upper mold shell 1 from the lower mold shell 2, the material at the top of the mold 4 will not be restricted. At this time, the ejector rod 8 will push the buffer pad 17 under the action of the spring 5 and drive the sleeve 16 to be ejected upward. During the ejection process, the sleeve 16 will demold the formed material, thereby ensuring the integrity of demolding.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A molding die for a vehicle lamp with high molding quality, comprising an upper die shell (1), characterized in that: The bottom of the upper mold shell (1) is provided with a lower mold shell (2), both sides of the top of the lower mold shell (2) are fixedly connected with positioning rods (3), the top of the lower mold shell (2) is fixedly connected with a mold (4), the inside of the upper mold shell (1) is provided with an injection hole, both sides of the bottom of the inner cavity of the lower mold shell (2) are fixedly connected with springs (5), the top of the two springs (5) is fixedly connected with a pressing plate (6), both sides of the top of the pressing plate (6) are fixedly connected with connecting plates (7), the top of the pressing plate (6) is fixedly connected with a top rod (8), the outside of the top rod (8) is fixedly connected with a fixed plate (9), the outside of the fixed plate (9) is fixedly connected with four long plates (10), both sides of the inside of the mold (4) are connected with rotating rods (11) through bearings, the outside of the two rotating rods (11) is fixedly connected with a plurality of rotating plates (12), both sides of the outside of the upper mold shell (1) is provided with a sliding groove, both sides of the inside of the two sliding grooves are slidingly connected with two sliding blocks (13), the bottom of the four sliding blocks (13) is fixedly connected with pressing rods (14).
2. The injection mold for vehicle lamp with high molding quality according to claim 1, characterized in that: Both of the positioning rods (3) extend into the inside of the upper mold shell (1) and contact both sides of the inside of the upper mold shell (1), both of the connecting plates (7) extend to the outside of the lower mold shell (2) and contact the lower mold shell (2).
3. The injection mold for vehicle lamp with high molding quality according to claim 1, characterized in that: The plurality of rotating plates (12) are linearly arranged, and the plurality of rotating plates (12) are arc-shaped.
4. The injection mold for vehicle lamp with high molding quality according to claim 1, characterized in that: The bottom of the four sliding blocks (13) respectively contacts both sides of the top of the two connecting plates (7), and the two sliding blocks (13) are fixedly connected with a connecting rod (15).
5. The injection mold for vehicle lamp with high molding quality according to claim 1, characterized in that: The mold (4) and the upper mold shell (1) have a gap, and the gap is semicircular spherical.
6. The injection mold for vehicle lamp with high molding quality according to claim 1, characterized in that: The inside of the mold (4) is slidingly connected with a sleeve (16), and the inside of the sleeve (16) is fixedly connected with a buffer pad (17).
7. The injection mold for vehicle lamp with high molding quality according to claim 6, characterized in that: The top rod (8) and the sleeve (16) are slidingly connected, and the top rod (8) and the buffer pad (17) have a distance.