Electric vehicle tail box quick color change injection mold

Abstract

This utility model discloses a quick-change color injection mold for an electric vehicle tail box, including a top plate. Cylinders are symmetrically arranged on both sides of the top of the top plate. The output rods of the cylinders penetrate the top plate and are fixedly connected to a lifting plate at the bottom. A rotary motor is fixedly connected to the top of the lifting plate. The output shaft of the rotary motor penetrates the lifting plate and is fixedly connected to a mounting plate at the bottom. Injection ports are symmetrically arranged on both sides of the top of the mounting plate. Material storage boxes are symmetrically arranged on both sides of the top of the lifting plate. A pump is fixedly connected to the top of the material storage boxes. A corrugated pipe is provided between the pump and the injection ports. This utility model, by starting the rotary motor, causes its output shaft to drive the mounting plate to rotate, thereby changing the position of the upper mold and forming another mold cavity. At this time, the pump is started to pump the other color material into the corrugated pipe and inject it into the mold cavity through the injection port, thus ensuring that each color corresponds to an independent injection channel and avoiding residual color mixing.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle tail box production technology, specifically to a quick-color-change injection mold for electric vehicle tail boxes. Background Technology

[0002] An electric vehicle tail box is a storage box installed at the rear of an electric vehicle. Its main function is to provide riders with extra storage space so that they can carry items they need for daily travel, such as shopping bags, backpacks, rain gear, helmets, etc. In order to achieve rapid prototyping, electric vehicle tail boxes are generally produced quickly and continuously using injection molds.

[0003] According to publication number CN222431425U, a quick-change two-color injection mold includes a mounting base. The bottom surface of the mounting base is fixed to the surface of the main body of the injection molding device. A cylinder is installed on the top inner surface of the main body of the injection molding device. The power output end of the cylinder of the main body of the injection molding device is fixed to the surface of the upper mold body. A mold core is provided on the surface of the mounting base. A locking hole is opened on the surface of the mold core. A threaded telescopic rod is locked inside the locking hole. The surface of the threaded telescopic rod passes through the threaded rod storage groove. The beneficial effect is that the quick-change two-color injection mold proposed by this utility model, by movably connecting the surface of the mold core to the inside of the mold core mounting frame, and by having the surface of the threaded telescopic rod pass through the threaded rod storage groove, allows the length of the threaded telescopic rod to be extended and retracted when turned, thus locking it inside the locking hole. This enables the mold core to be quickly disassembled and replaced from the mold core mounting frame without the need for workers to disassemble the mold core by bolts.

[0004] The aforementioned threaded telescopic rod and other structures enable quick disassembly and replacement of the mold core. However, in the case of two-color material injection molding, even if the mold core is replaced, if the injection channel is the same flow channel, color mixing is likely to occur during the injection process, affecting the mold's final molding effect. Utility Model Content

[0005] The purpose of this invention is to provide a quick-change color injection mold for the tail box of an electric vehicle, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-change color injection mold for an electric vehicle tail box, comprising a top plate, on which cylinders are symmetrically arranged on both sides of the top of the top plate, the output rod of the cylinders passing through the top plate and fixedly connected to a lifting plate at the bottom, a rotary motor fixedly connected to the top of the lifting plate, the output shaft of the rotary motor passing through the lifting plate and fixedly connected to a mounting plate at the bottom, injection ports symmetrically arranged on both sides of the top of the mounting plate, and storage boxes symmetrically arranged on both sides of the top of the lifting plate, a pump fixedly connected to the top of the storage boxes, and a corrugated pipe provided between the pump and the injection ports.

[0007] As a further preferred embodiment of this technical solution, the mounting plate has symmetrically arranged material feeding channels on both sides inside, and an upper mold is correspondingly arranged at the bottom of the material feeding channels. Guide plates are symmetrically arranged on both sides of the mounting plate.

[0008] As a further preferred embodiment of this technical solution, the bottom of the guide plate is provided with a mounting base, and the top two sides of the mounting base are symmetrically provided with guide grooves, which are adapted to the guide plate.

[0009] As a further preferred embodiment of this technical solution, two placement slots are symmetrically arranged on one side of the mounting base, and two moving cavities are symmetrically arranged on one side of the inner wall of the placement slots. An adjustment cavity is provided inside the moving cavity, and a through hole is provided on one side of the adjustment cavity.

[0010] As a further preferred embodiment of this technical solution, a positioning plate is slidably connected inside the movable cavity, a slide rod is fixedly connected to one side of the positioning plate, a limit plate is fixedly connected to one end of the slide rod away from the positioning plate, the limit plate is located outside the mounting base, and a return spring is sleeved on the surface of the slide rod, the return spring being located inside the adjustment cavity.

[0011] As a further preferred embodiment of this technical solution, two grooves are symmetrically arranged on the side of the inner wall of the placement groove away from the moving cavity, and positioning balls are arranged inside the grooves, with a return spring arranged between the positioning balls and the grooves.

[0012] As a further preferred embodiment of this technical solution, a lower mold is provided inside the placement groove, and a positioning ball groove is symmetrically provided on one side of the lower mold. The positioning ball groove is adapted to the positioning ball. Two positioning grooves are symmetrically provided on the side of the lower mold opposite to the positioning ball groove. The positioning grooves are adapted to the positioning plate.

[0013] This utility model provides a quick-color-change injection mold for electric vehicle tail boxes, which has the following beneficial effects:

[0014] (1) This utility model sets two upper molds at the bottom of the mounting plate and corresponds to the lower mold on the mounting base. After the mold of one color in the tail box is formed, the rotary motor is started and its output shaft drives the mounting plate to rotate, thereby changing the position of the upper mold and forming another mold cavity. At this time, the pump is started to pump the other color material into the corrugated pipe and inject it into the mold cavity through the injection port, so that each color corresponds to an independent injection flow channel and avoids residual color mixing.

[0015] (2) By pulling the limiting plate to one side, the slide bar slides inside the through hole. The first reset spring is squeezed and contracted, the positioning plate is disengaged from the inside of the positioning groove, and the lower mold is dragged to one side. Due to the compression of the lower mold, the positioning ball moves into the groove. The second reset spring is squeezed and contracted, and the lower mold can be disengaged from the inside of the placement groove and its cavity is cleaned to ensure the cleanliness of the inside, which facilitates the subsequent injection molding of the tail box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of the mounting base and lower mold of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the storage box and corrugated pipe structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the material feeding channel structure of this utility model.

[0021] In the diagram: 1. Top plate; 2. Cylinder; 3. Lifting plate; 4. Rotary motor; 5. Mounting plate; 6. Storage box; 7. Pump; 8. Corrugated pipe; 9. Injection port; 10. Material discharge channel; 11. Upper mold; 12. Guide plate; 13. Mounting base; 14. Guide groove; 15. Placement groove; 16. Moving cavity; 17. Adjusting cavity; 18. Through hole; 19. Positioning plate; 20. Slide rod; 21. Return spring one; 22. Limiting plate; 23. Groove; 24. Positioning ball; 25. Return spring two; 26. Lower mold; 27. Positioning ball groove; 28. Positioning groove. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] This utility model provides a technical solution: such as Figures 1 to 5As shown, in this embodiment, the quick-change color injection mold for the electric vehicle tail box includes a top plate 1. Cylinders 2 are symmetrically arranged on both sides of the top of the top plate 1. The output rod of the cylinder 2 passes through the top plate 1 and is fixedly connected to a lifting plate 3 at the bottom. A rotary motor 4 is fixedly connected to the top of the lifting plate 3. The output shaft of the rotary motor 4 passes through the lifting plate 3 and is fixedly connected to a mounting plate 5 at the bottom. Injection ports 9 are symmetrically arranged on both sides of the top of the mounting plate 5. Storage boxes 6 are symmetrically arranged on both sides of the top of the lifting plate 3. A pumping pump 7 is fixedly connected to the top of the storage box 6. A corrugated pipe 8 is arranged between the pumping pump 7 and the injection ports 9.

[0024] Start the rotary motor 4, whose output shaft drives the mounting plate 5 to rotate, thereby changing the position of the upper mold 11. This forms a mold cavity through the lower mold 26 and two upper molds 11 of different shapes and sizes, facilitating the quick replacement and injection of different colored materials. Start the pump 7 to pump another colored material into the corrugated pipe 8 and inject it into the mold cavity through the injection port 9, so that each color corresponds to an independent injection channel, avoiding residual color mixing.

[0025] The mounting plate 5 has symmetrically arranged feeding channels 10 on both sides inside, and an upper mold 11 is arranged at the bottom of the feeding channel 10. Guide plates 12 are symmetrically arranged on both sides of the mounting plate 5.

[0026] By setting an inclined discharge channel 10 between the injection port 9 and the upper mold 11, the injection of molding material is facilitated. Furthermore, since the discharge channel 10 has a certain slope, the downward movement speed of the material is slowed down, reducing the generation of bubbles and other issues, thereby improving the quality of the product after cooling and molding.

[0027] The bottom of the guide plate 12 is provided with a mounting base 13, and the top two sides of the mounting base 13 are symmetrically provided with guide grooves 14, which are adapted to the guide plate 12.

[0028] By providing guide grooves 14 on both sides of the mounting base 13 and adapting them to the guide plate 12, the upper mold 11 is guided and limited during its up-and-down movement, thereby ensuring the accuracy of mold closing.

[0029] Two placement slots 15 are symmetrically arranged on one side of the mounting base 13. Two moving cavities 16 are symmetrically arranged on one side of the inner wall of the placement slots 15. An adjustment cavity 17 is provided inside the moving cavity 16. A through hole 18 is provided on one side of the adjustment cavity 17.

[0030] A positioning plate 19 is slidably connected inside the movable cavity 16. A slide rod 20 is fixedly connected to one side of the positioning plate 19. A limit plate 22 is fixedly connected to one end of the slide rod 20 away from the positioning plate 19. The limit plate 22 is located outside the mounting base 13. A return spring 21 is sleeved on the surface of the slide rod 20. The return spring 21 is located inside the adjustment cavity 17.

[0031] Two grooves 23 are symmetrically arranged on the inner wall of the placement groove 15 away from the moving cavity 16. The grooves 23 are equipped with positioning balls 24, and a return spring 25 is arranged between the positioning balls 24 and the grooves 23.

[0032] The lower mold 26 is provided inside the placement groove 15. A positioning ball groove 27 is symmetrically provided on one side of the lower mold 26. The positioning ball groove 27 is adapted to the positioning ball 24. Two positioning grooves 28 are symmetrically provided on the side of the lower mold 26 away from the positioning ball groove 27. The positioning grooves 28 are adapted to the positioning plate 19.

[0033] Pull the limiting plate 22 to one side to make the slide rod 20 slide inside the through hole 18. The return spring 21 is compressed and contracted, and the positioning plate 19 is disengaged from the positioning groove 28. The lower mold 26 is dragged to one side. Due to the compression of the lower mold 26, the positioning ball 24 moves into the groove 23. The return spring 25 is compressed and contracted, which facilitates the installation and disassembly of the lower mold 26. After the lower mold 26 is disassembled, its cavity can be cleaned to ensure the cleanliness of the inside, which facilitates the injection molding of the tail box and avoids material residue inside, which will affect the production of the tail box.

[0034] This utility model provides a quick-color-change injection mold for electric vehicle tail boxes. The specific working principle is as follows:

[0035] In operation, cylinder 2 is activated, and its output rod pushes the lifting plate 3 downward, causing the upper mold 11 to move accordingly. The guide plate 12 moves into the guide groove 14, and the upper mold 11 and lower mold 26 come into contact, forming a mold cavity. At this time, the pumping pump 7 is activated to pump the injection material inside the storage box 6 into the corrugated pipe 8 and transport it into the mold cavity. After cooling and molding, cylinder 2 drives the lifting plate 3 and the upper mold 11 to move upward. After the guide plate 12 disengages from the guide groove 14, the rotary motor 4 is activated, and its output shaft drives the mounting plate 5 to rotate 180 degrees, thereby changing the position of the upper mold 11. Cylinder 2 then drives the upper mold 11 to move downward again, forming another mold cavity. At this time, the pumping pump 7 is activated to pump another color material into the corrugated pipe 8 and inject it into the mold cavity through the injection port 9. After cooling and molding, the product can be ejected by the lifting structure, thus completing the production of the electric vehicle tail box.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid color-changing injection mold for the trunk of an electric vehicle, comprising a top plate (1), characterized in that: Cylinders (2) are symmetrically arranged on both sides of the top of the top plate (1). The output rod of the cylinder (2) passes through the top plate (1) and is fixedly connected to the bottom of the lifting plate (3). A rotary motor (4) is fixedly connected to the top of the lifting plate (3). The output shaft of the rotary motor (4) passes through the lifting plate (3) and is fixedly connected to the bottom of the mounting plate (5). Injection ports (9) are symmetrically arranged on both sides of the top of the mounting plate (5). Storage boxes (6) are symmetrically arranged on both sides of the top of the lifting plate (3). A pump (7) is fixedly connected to the top of the storage box (6). A corrugated pipe (8) is arranged between the pump (7) and the injection port (9).

2. The electric vehicle tail box quick-color-change injection mold according to claim 1, characterized in that: The mounting plate (5) has symmetrically arranged feeding channels (10) on both sides inside, and an upper mold (11) is arranged at the bottom of the feeding channel (10). Guide plates (12) are symmetrically arranged on both sides of the mounting plate (5).

3. The rapid color changing injection mold for electric vehicle trunk according to claim 2, wherein: The bottom of the guide plate (12) is provided with a mounting base (13), and the top two sides of the mounting base (13) are symmetrically provided with guide grooves (14), which are adapted to the guide plate (12).

4. The rapid color changing injection mold for electric vehicle trunk according to claim 3, wherein: The mounting base (13) has two symmetrical placement slots (15) on one side, and two symmetrical moving cavities (16) on one side of the inner wall of the placement slots (15). The moving cavities (16) have an adjustment cavity (17) inside, and a through hole (18) is provided on one side of the adjustment cavity (17).

5. The rapid color changing injection mold for electric vehicle trunk according to claim 4, wherein: A positioning plate (19) is slidably connected inside the movable cavity (16). A slide rod (20) is fixedly connected to one side of the positioning plate (19). A limiting plate (22) is fixedly connected to one end of the slide rod (20) away from the positioning plate (19). The limiting plate (22) is located outside the mounting base (13). A return spring (21) is sleeved on the surface of the slide rod (20). The return spring (21) is located inside the adjustment cavity (17).

6. The rapid color changing injection mold for electric vehicle trunk according to claim 4, wherein: Two grooves (23) are symmetrically arranged on the inner wall of the placement groove (15) away from the moving cavity (16). A positioning ball (24) is arranged inside the groove (23), and a reset spring (25) is arranged between the positioning ball (24) and the groove (23).

7. The rapid color changing injection mold for electric vehicle trunk according to claim 4, wherein: The placement groove (15) is provided with a lower mold (26) inside. A positioning ball groove (27) is symmetrically arranged on one side of the lower mold (26). The positioning ball groove (27) is adapted to the positioning ball (24). Two positioning grooves (28) are symmetrically arranged on the side of the lower mold (26) away from the positioning ball groove (27). The positioning grooves (28) are adapted to the positioning plate (19).

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