Rapid demolding mechanism for electric vehicle LED tail lamp shell mold

Abstract

The utility model belongs to the technical field of molds, and particularly relates to a rapid demolding mechanism for an electric vehicle LED tail lamp shell mold. The rear tail lamp shell forming die comprises a rear tail lamp shell forming upper die and a rear tail lamp shell forming lower die. In the injection molding process, molten materials are injected into the cavity through the injection molding piece, the side hole groove structure and the end hole groove structure of the injection molding piece can be synchronously formed by matching the side hole groove forming demolding assembly and the end hole groove forming demolding assembly with the cavity, and mold opening is conducted after injection molding is completed; during demolding, the side hole groove forming demolding assembly and the end hole groove forming demolding assembly move to the end away from the forming protrusion and conduct demolding and core pulling with the formed hole groove structure, then a plastic part is subjected to direct ejection demolding from bottom to top through the direct ejection demolding part, the demolding speed is greatly increased, the demolding action is simple and direct, and the demolding efficiency is improved. Therefore, the end part and the side part of the plastic part have sufficient demolding space, the integrity of the formed hole groove structure is ensured, and the forming quality of the plastic part is improved.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a quick demolding mechanism for an LED taillight housing mold for electric vehicles. Background Technology

[0002] The LED taillight housing for electric vehicles is primarily used to protect the taillights without affecting their brightness, hence the choice of plastic material. The LED taillight housing is injection molded. Due to assembly requirements, slotted structures are needed on the sides and ends of the housing for easy installation. However, existing molds struggle to simultaneously mold these side and end slotted structures during injection molding, and the slots are easily damaged during ejection, affecting demolding speed and part quality. Therefore, there is an urgent need to design a rapid demolding mechanism for the LED taillight housing mold that overcomes these shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a mold for an automotive taillight housing [Application No.: 202321516044.0], which includes a base, a lower mold body at the upper end of the base, an upper mold body at the upper end of the lower mold body, an injection port on the upper mold body, a support cylinder fixedly connected to the lower end of the base, a support rod slidably connected inside the support cylinder, a support plate fixedly connected to the support rod, a locking hole inside the support rod, a locking rod slidably connected inside the support cylinder, the locking rod slidably connected to the locking hole, and an end plate fixedly connected to the locking rod. However, this solution still has difficulties in simultaneously molding the side and end slot structures of the product during injection molding, and the slots are still easily damaged during ejection, affecting the demolding speed and the molding quality of the plastic part. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a quick demolding mechanism for the LED taillight housing mold of electric vehicles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick demolding mechanism for an electric vehicle LED taillight housing mold includes an upper mold for forming the taillight housing and a lower mold for forming the taillight housing. An injection molded part is provided above the upper mold for forming the taillight housing, and a forming protrusion is provided on the lower mold for forming the taillight housing. A forming cavity is provided inside the upper mold for forming the taillight housing. The forming protrusion and the forming cavity are positioned and matched in shape. A side slot forming demolding component and an end slot forming demolding component are provided on the lower mold for forming the taillight housing, which can reciprocate linearly along one end close to or away from the forming protrusion. A straight ejector is provided below the lower mold for forming the taillight housing. The side slot forming demolding component and the end slot forming demolding component are respectively staggered with the straight ejector.

[0007] In the aforementioned fast demolding mechanism for the LED taillight housing mold of an electric vehicle, the side hole groove forming demolding assembly includes a first side slide and a second side slide disposed on the lower mold of the taillight housing. The first side slide has a first side hole forming part on its inner side, and the second side slide has a second side hole forming part on its inner side. The first side hole forming part and the second side hole forming part are respectively arranged opposite to the forming protrusion.

[0008] In the above-mentioned quick demolding mechanism for the LED taillight housing mold of electric vehicle, the first side hole forming part includes four first forming auxiliary blocks disposed inside the first side slide block. The first forming auxiliary blocks are provided with first side hole forming protrusions inside the first forming auxiliary blocks, and the first side hole forming protrusions abut against the forming protrusions.

[0009] In the above-mentioned quick demolding mechanism for the LED taillight housing mold of electric vehicle, the second side hole forming part includes four second forming auxiliary blocks disposed inside the second side slide block. The second forming auxiliary blocks are provided with second side hole forming protrusions inside the second forming auxiliary blocks, and the second side hole forming protrusions abut against the forming protrusions.

[0010] In the aforementioned rapid demolding mechanism for the LED taillight housing mold of electric vehicles, the end hole groove forming demolding assembly includes two end slides disposed on the lower mold of the taillight housing, and the inner side of the end slides is provided with an end forming auxiliary block and an end hole forming protrusion.

[0011] In the aforementioned rapid demolding mechanism for the LED taillight housing mold of electric vehicles, the injection molded part includes an injection main board disposed above the upper mold for forming the taillight housing, and the injection main board is provided with an injection main hole.

[0012] In the aforementioned rapid demolding mechanism for the LED taillight housing mold of electric vehicles, the straight ejector demolding component includes an ejector fixing plate disposed below the lower mold of the taillight housing forming. The ejector fixing plate is provided with a plurality of straight ejector rods, which pass through the forming protrusion and slide in cooperation with the forming protrusion.

[0013] In the aforementioned quick demolding mechanism for the LED taillight housing mold of electric vehicles, a fixed base plate is provided below the ejector fixing plate, and two anti-deviation irons are provided on the fixed base plate. The ejector fixing plate and the anti-deviation irons are in sliding cooperation.

[0014] In the aforementioned rapid demolding mechanism for the LED taillight housing mold of electric vehicles, the upper mold for forming the taillight housing is provided with an upper mold cooling pipe.

[0015] In the aforementioned rapid demolding mechanism for the LED taillight housing mold of electric vehicles, a lower mold cooling pipe is provided inside the lower mold forming mold of the taillight housing.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. In the injection molding process, the upper mold and lower mold of the taillight housing are brought close together, so that the molding protrusion and the molding cavity abut and cooperate to form a complete cavity. Molten material is injected into the cavity through the injection molded part. The side hole and groove molding demolding components and the end hole and groove molding demolding components cooperate with the cavity to simultaneously form the side hole and groove structure of the plastic part. After injection molding is completed, the mold is opened, and the side hole and groove molding demolding components and the end hole and groove molding demolding components are moved away from the molding protrusion to demold and pull the core with the molded hole and groove structure. Then, the plastic part is demolded from bottom to top by the direct ejector, which greatly speeds up the demolding speed. The demolding action is simple and direct, so that the ends and sides of the plastic part have sufficient demolding space, ensuring the integrity of the molded hole and groove structure and improving the molding quality of the plastic part.

[0018] 2. After injection molding is completed, this utility model simultaneously injects cooling water into the cooling pipes of the upper mold and the lower mold, so as to simultaneously cool the upper and lower surfaces of the plastic part over a large area, resulting in good cooling effect and fast cooling rate.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a partial structural schematic diagram of the present invention.

[0022] Figure 3 This is a partial structural schematic diagram of another aspect of this utility model.

[0023] Figure 4 This is a partial structural schematic diagram of another aspect of this utility model.

[0024] Figure 5 This is a schematic diagram of the upper mold for forming the taillight housing.

[0025] In the diagram: 1. Upper mold for taillight housing; 2. Lower mold for taillight housing; 3. Injection part; 4. Molding protrusion; 5. Molding cavity; 6. Side hole groove molding demolding assembly; 7. End hole groove molding demolding assembly; 8. Straight ejector demolding component; 9. First side slide; 10. Second side slide; 11. First side hole molding part; 12. Second side hole molding part; 13. First side hole molding protrusion; 14. Second molding auxiliary block; 15. Second side hole molding protrusion; 16. End slide; 17. End molding auxiliary block; 18. End hole molding protrusion; 19. Injection main plate; 20. Injection main hole; 21. Ejector fixing plate; 22. Straight ejector rod; 23. Fixing base plate; 24. Anti-deviation iron; 25. Upper mold cooling pipe; 26. Lower mold cooling pipe. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, a quick demolding mechanism for an electric vehicle LED taillight housing mold includes an upper taillight housing forming mold 1 and a lower taillight housing forming mold 2. An injection molded part 3 is provided above the upper taillight housing forming mold 1. A forming protrusion 4 is provided on the lower taillight housing forming mold 2. A forming cavity 5 is provided inside the upper taillight housing forming mold 1. The forming protrusion 4 and the forming cavity 5 are positioned and matched in shape. A side slot forming demolding component 6 and an end slot forming demolding component 7 are provided on the lower taillight housing forming mold 2, which can reciprocate linearly along one end close to or away from the forming protrusion 4. A straight ejector demolding component 8 is provided below the lower taillight housing forming mold 2. The side slot forming demolding component 6 and the end slot forming demolding component 7 are respectively staggered with the straight ejector demolding component 8.

[0028] In this embodiment, during the injection molding process, the upper mold 1 and the lower mold 2 of the taillight housing are brought close together, so that the molding protrusion 4 and the molding cavity 5 abut against each other to form a complete cavity. Molten material is injected into the cavity through the injection molding part 3. The side groove molding demolding assembly 6 and the end groove molding demolding assembly 7 cooperate with the cavity to simultaneously form the side groove structure and the end groove structure of the plastic part. After injection molding is completed, the mold is opened, and the side groove molding demolding assembly 6 and the end groove molding demolding assembly 7 are moved away from the molding protrusion 4 to demold and pull the core of the molded groove structure. Then, the plastic part is demolded from bottom to top by the direct ejector demolding part 8, which greatly speeds up the demolding rate. The demolding action is simple and direct, so that the ends and sides of the plastic part have sufficient demolding space, ensuring the integrity of the molded groove structure and improving the molding quality of the plastic part.

[0029] Combination Figure 1-5 As shown, the side hole groove forming demolding assembly 6 includes a first side slide 9 and a second side slide 10 disposed on the lower mold 2 for forming the taillight housing. The first side slide 9 has a first side hole forming part 11 disposed on its inner side, and the second side slide 10 has a second side hole forming part 12 disposed on its inner side. The first side hole forming part 11 and the second side hole forming part 12 are respectively disposed opposite to the forming protrusion 4.

[0030] Specifically, during the injection molding process, the first side slide 9 and the second side slide 10 move to the innermost side. At this time, the first side hole forming part 11 and the second side hole forming part 12 respectively abut against the forming protrusion 4 to assist in forming the side hole groove structure of the plastic part. No secondary processing is required, which shortens the process.

[0031] The first side hole forming part 11 includes four first forming auxiliary blocks 13 disposed inside the first side slide 9. The first forming auxiliary blocks 13 are provided with first side hole forming protrusions 14 inside the first forming auxiliary blocks 13. The first side hole forming protrusions 14 abut against the forming protrusions 4. The second side hole forming part 12 includes four second forming auxiliary blocks 15 disposed inside the second side slide 10. The second forming auxiliary blocks 15 are provided with second side hole forming protrusions 16 inside the second forming auxiliary blocks 15. The second side hole forming protrusions 16 abut against the forming protrusions 4.

[0032] In this embodiment, during injection molding, the first side hole forming protrusion 14 abuts against the forming protrusion 4, and the second side hole forming protrusion 16 abuts against the forming protrusion 4, which is used to assist in forming the side hole groove structure of the plastic part. No secondary processing is required, which shortens the process. After injection molding is completed, the first side slide 9 and the second side slide 10 are moved away from the forming protrusion 4 to achieve side core pulling and demolding.

[0033] The end hole groove forming demolding assembly 7 includes two end slides 17 disposed on the lower mold 2 for forming the taillight housing. The end slides 17 are provided with an end forming auxiliary block 18 and an end hole forming protrusion 19 on their inner sides.

[0034] In this embodiment, during injection molding, the end hole forming protrusion 19 abuts against the forming protrusion 4 to assist in forming the end hole groove structure of the plastic part. No secondary processing is required, which shortens the process. After injection molding is completed, the end slide 17 is moved away from the forming protrusion 4 to achieve end core pulling and demolding.

[0035] Combination Figure 1 As shown, the injection molded part 3 includes an injection main plate 20 disposed above the upper mold 1 for forming the taillight housing, and the injection main plate 20 is provided with an injection main hole 21.

[0036] In this embodiment, the molten material is injected into the cavity through the injection main hole 21 in the injection main plate 20 to complete the injection molding.

[0037] The straight ejector 8 includes an ejector fixing plate 22 disposed below the lower mold 2 for forming the taillight housing. The ejector fixing plate 22 is provided with a plurality of straight ejector rods 23, which pass through the forming protrusion 4 and slide in cooperation with the forming protrusion 4.

[0038] In this embodiment, the ejector plate 22 is used to fix the straight ejector rod 23. After the injection molding and core pulling are completed, the ejector plate 22 is moved upward, which drives the straight ejector rod 23 to directly eject the molded plastic part, resulting in a good demolding effect.

[0039] Combination Figure 1-4 As shown, a fixed base plate 24 is provided below the ejector fixing plate 22, and two anti-deviation irons 25 are provided on the fixed base plate 24. The ejector fixing plate 22 and the anti-deviation irons 25 are slidably engaged.

[0040] In this embodiment, during the ejection process, the ejection fixing plate 22 and the anti-deviation iron 25 slide together to limit the ejection fixing plate 22 and the straight ejector rod 23, thus preventing angular deviation.

[0041] Combination Figure 2-4 As shown, the upper mold 1 for forming the taillight housing is provided with an upper mold cooling pipe 26, and the lower mold 2 for forming the taillight housing is provided with a lower mold cooling pipe 27.

[0042] In this embodiment, after injection molding is completed, cooling water is simultaneously injected into the upper mold cooling pipe 26 and the lower mold cooling pipe 27 to simultaneously cool the upper and lower surfaces of the plastic part over a large area, resulting in good cooling effect and fast cooling rate.

[0043] The working principle of this utility model is as follows:

[0044] During injection molding, the upper mold 1 and lower mold 2 for the taillight housing are brought close together, so that the molding protrusion 4 abuts against the molding cavity 5 to form a complete cavity. Molten material is injected into the cavity through the main injection hole 21 in the injection main plate 20. The first side hole molding protrusion 14 abuts against the molding protrusion 4, and the second side hole molding protrusion 16 abuts against the molding protrusion 4 to assist in molding the side hole and groove structure of the plastic part. The end hole molding protrusion 19 abuts against the molding protrusion 4 to assist in molding the end hole and groove structure of the plastic part. No secondary processing is required, shortening the process. After injection molding is completed, The first side slide 9 and the second side slide 10 are moved away from the molding protrusion 4 to achieve side core pulling and demolding. The end slide 17 is moved away from the molding protrusion 4 to achieve end core pulling and demolding. The ejector plate 22 is used to fix the straight ejector rod 23. After the injection molding and core pulling are completed, the ejector plate 22 is moved upward, driving the straight ejector rod 23 to directly eject the molded plastic part, which greatly speeds up the demolding speed. The demolding action is simple and direct, ensuring that the ends and sides of the plastic part have sufficient demolding space, guaranteeing the integrity of the hole and groove structure after molding, and improving the molding quality of the plastic part.

[0045] During the ejection process, the ejection fixing plate 22 and the anti-deviation iron 25 slide together, which limits the ejection fixing plate 22 and the straight ejector rod 23 to prevent angular deviation.

[0046] After injection molding is completed, cooling water is simultaneously injected into the upper mold cooling pipe 26 and the lower mold cooling pipe 27 to simultaneously cool the upper and lower surfaces of the plastic part over a large area, resulting in good cooling effect and fast cooling rate.

[0047] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0048] Although this document frequently uses terms such as upper mold 1 for taillight housing, lower mold 2 for taillight housing, injection part 3, molding protrusion 4, molding cavity 5, side hole groove molding demolding assembly 6, end hole groove molding demolding assembly 7, straight ejector demolding component 8, first side slide 9, second side slide 10, first side hole molding part 11, second side hole molding part 12, first molding auxiliary block 13, first side hole molding protrusion 14, second molding auxiliary block 15, second side hole molding protrusion 16, end slide 17, end molding auxiliary block 18, end hole molding protrusion 19, injection main plate 20, injection main hole 21, ejector fixing plate 22, straight ejector rod 23, fixing base plate 24, anti-deviation iron 25, upper mold cooling pipe 26, lower mold cooling pipe 27, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A quick demolding mechanism for an electric vehicle LED rear lamp shell mold, comprising a rear lamp shell forming upper die (1) and a rear lamp shell forming lower die (2), characterized in that, The rear lamp shell forming upper die (1) is provided with an injection molding part (3) above, the rear lamp shell forming lower die (2) is provided with a forming protrusion (4) above, the rear lamp shell forming upper die (1) is provided with a forming cavity (5) inside, the forming protrusion (4) and the forming cavity (5) are corresponding in position and matched in shape, the rear lamp shell forming lower die (2) is provided with a side hole groove forming demolding assembly (6) and an end hole groove forming demolding assembly (7) on the side of the end of the forming protrusion (4) that can reciprocate linearly, the rear lamp shell forming lower die (2) is provided with a straight top demolding part (8) below, and the side hole groove forming demolding assembly (6) and the end hole groove forming demolding assembly (7) are staggered with the straight top demolding part (8) respectively.

2. The quick mold release mechanism for the electric vehicle LED tail lamp housing mold according to claim 1, wherein, The side hole groove forming demolding assembly (6) comprises a first side sliding seat (9) and a second side sliding seat (10) arranged on the rear lamp shell forming lower die (2), the first side sliding seat (9) is provided with a first side hole forming part (11) inside, and the second side sliding seat (10) is provided with a second side hole forming part (12) inside.

3. The quick mold release mechanism for the electric vehicle LED tail lamp housing mold according to claim 2, wherein, The first side hole forming part (11) comprises four first forming auxiliary blocks (13) arranged inside the first side sliding seat (9), the first forming auxiliary blocks (13) are provided with first side hole forming protrusions (14) inside, and the first side hole forming protrusions (14) abut against the forming protrusion (4).

4. The quick mold release mechanism for the electric vehicle LED tail lamp housing mold according to claim 3, wherein, The second side hole forming part (12) comprises four second forming auxiliary blocks (15) arranged inside the second side sliding seat (10), the second forming auxiliary blocks (15) are provided with second side hole forming protrusions (16) inside, and the second side hole forming protrusions (16) abut against the forming protrusion (4).

5. The quick mold release mechanism for an electric vehicle LED tail light housing mold according to claim 4, wherein, The end hole groove forming demolding assembly (7) comprises two end sliding seats (17) arranged on the rear lamp shell forming lower die (2), and the end sliding seats (17) are provided with end forming auxiliary blocks (18) and end hole forming protrusions (19) inside.

6. The quick mold release mechanism for an electric vehicle LED tail light housing mold according to claim 5, wherein, The injection molding part (3) comprises an injection molding main plate (20) arranged above the rear lamp shell forming upper die (1), and the injection molding main plate (20) is provided with an injection molding main hole (21) inside.

7. The quick mold release mechanism for an electric vehicle LED tail light housing mold according to claim 6, wherein, The straight top demolding part (8) comprises an ejection fixed plate (22) arranged below the rear lamp shell forming lower die (2), the ejection fixed plate (22) is provided with a plurality of straight top rods (23) above, the straight top rods (23) penetrate through the forming protrusion (4) and are in sliding fit with the forming protrusion (4).

8. The quick mold release mechanism for an electric vehicle LED tail light housing mold according to claim 7, wherein, The ejection fixed plate (22) is provided with a fixed base plate (24) below, the fixed base plate (24) is provided with two anti-deviation inch steel bars (25) above, and the ejection fixed plate (22) is in sliding fit with the anti-deviation inch steel bars (25).

9. The quick mold release mechanism for an electric vehicle LED tail light housing mold according to claim 8, wherein, The rear lamp shell forming upper die (1) is provided with an upper die cooling pipeline (26) inside.

10. The quick mold release mechanism for an electric vehicle LED tail light housing mold according to claim 9, wherein, The rear lamp shell forming lower die (2) is provided with a lower die cooling pipeline (27) inside.

Images