Efficient injection molding device for molding tail lamp decorative plate

Abstract

The utility model relates to the technical field of injection molds, in particular to an efficient injection molding device for molding a tail lamp decorative plate, which comprises a base, a lower mold arranged on the base, an upper mold arranged above the lower mold, an injection molding cavity arranged at the top of the lower mold, and a plurality of collecting frames detachably arranged on the side wall of the lower mold. A plurality of mounting holes are formed in the inner wall of the injection molding cavity, penetrate through the side wall of the lower mold and are opposite to the collecting frame, upper half pipe bodies and lower half pipe bodies are detachably arranged in the mounting holes and are opposite to each other, and circulating holes are formed between the upper half pipe bodies and the lower half pipe bodies. The device has the effect of conveniently cleaning and dredging the circulating hole.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a high-efficiency injection molding device for molding a tail lamp decorative plate. Background Art

[0002] Taillight trim is a kind of automobile accessory, which plays the role of protecting the taillight and gathering the light of the taillight. At present, the taillight trim is produced by injection mold according to the design shape of the vehicle model.

[0003] In the related art, a Chinese patent with authorization announcement number CN217495003U provides an automobile trim injection mold, which includes a base, a lower mold is arranged above the base, an upper mold is arranged above the lower mold, an injection cavity is arranged inside the lower mold, a flow hole is arranged inside the injection cavity, the flow hole runs through the side wall of the lower mold, a collection frame is installed on the side wall of the lower mold, and the collection frame and the flow hole are connected to each other. After the liquid is injected into the injection cavity, the excess liquid flows into the collection frame through the flow hole, and then the upper mold cooperates with the lower mold to shape the liquid between the upper mold and the lower mold.

[0004] In the process of realizing the present application, the inventors found that there are at least the following problems in this technology: since the liquid easily solidifies in the flow hole, and the flow hole is narrow and located inside the lower mold, it is difficult to clean and dredge the inside of the flow hole. Utility Model Content

[0005] In order to facilitate the cleaning and unblocking of the flow holes, the present application provides a high-efficiency injection molding device for molding a taillight trim panel.

[0006] The present application provides a high-efficiency injection molding device for molding a taillight trim panel, which adopts the following technical solution:

[0007] A high-efficiency injection molding device for forming a taillight trim panel comprises a base, a lower mold is arranged on the base, an upper mold is arranged above the lower mold, an injection cavity is opened on the top of the lower mold, a plurality of collection frames are detachably arranged on the side wall of the lower mold, a plurality of mounting holes are opened on the inner wall of the injection cavity, the mounting holes penetrate the side wall of the lower mold, the mounting holes are arranged opposite to the collection frames, an upper half tube body and a lower half tube body are detachably arranged in the mounting holes, the upper half tube body and the lower half tube body are arranged opposite to each other, and a flow hole is formed between the upper half tube body and the lower half tube body.

[0008] By adopting the above technical scheme, the upper half tube body and the lower half tube body are installed in the mounting hole, and the flow hole formed between the upper half tube body and the lower half tube body connects the injection cavity and the collection frame. When the liquid is injected into the injection cavity, the excess liquid in the injection cavity flows into the collection frame through the flow hole, and then the upper mold cooperates with the lower mold to form the liquid between the upper mold and the lower mold. When the liquid solidifies in the flow hole, the upper half tube body and the lower half tube body are taken out of the mounting hole, and then the upper half tube body and the lower half tube body are separated, thereby exposing the flow hole between the upper half tube body and the lower half tube body, which is convenient for cleaning and unblocking the flow hole.

[0009] Preferably, a hydraulic expansion sleeve is arranged in the mounting hole, the inner wall of the mounting hole fits with the outer ring of the hydraulic expansion sleeve, the outer wall of the upper half tube body and the outer wall of the lower half tube body both fit with the inner ring of the hydraulic expansion sleeve, and a hydraulic cavity is arranged in the hydraulic expansion sleeve.

[0010] By adopting the above technical solution, when the upper half of the tube body and the lower half of the tube body are installed in the installation groove, the hydraulic expansion sleeve is first installed in the installation hole, and then the upper half of the tube body and the lower half of the tube body are placed relatively in the hydraulic expansion sleeve, and then the hydraulic medium is injected into the hydraulic cavity to expand the hydraulic expansion sleeve until the inner wall of the installation hole and the outer ring of the hydraulic expansion sleeve are pressed against each other, and the outer wall of the upper half of the tube body and the outer wall of the lower half of the tube body are pressed against the inner ring of the hydraulic expansion sleeve. When the upper half of the tube body and the lower half of the tube body are removed from the installation groove, the hydraulic medium in the hydraulic cavity is first discharged, and then the upper half of the tube body and the lower half of the tube body are taken out of the hydraulic expansion sleeve.

[0011] Preferably, a hydraulic pipe is provided on the hydraulic expansion sleeve, the hydraulic pipe is communicated with the hydraulic cavity, and a hydraulic valve is provided on the hydraulic pipe.

[0012] By adopting the above technical solution, when the hydraulic valve is opened, the hydraulic medium enters and exits the hydraulic cavity through the hydraulic pipe, and when the hydraulic valve is closed, the hydraulic medium in the hydraulic cavity is not easy to flow out.

[0013] Preferably, a limiting ring is fixedly arranged in the mounting hole, and the limiting ring is located on the side of the hydraulic expansion sleeve close to the injection cavity, and the end of the upper half of the tube close to the injection cavity and the end of the lower half of the tube close to the injection cavity are both in contact with the limiting ring.

[0014] By adopting the above technical solution, when the upper half tube body and the lower half tube body are installed in the installation groove, the limiting ring restricts the upper half tube body and the lower half tube body from being placed in the injection cavity, thereby reducing the impact on the injection shape.

[0015] Preferably, a sealing rubber pad is fixedly provided on one end of the upper half tube body close to the injection cavity and one end of the lower half tube body close to the injection cavity, and the sealing rubber pad is used to fit with the side of the limiting ring away from the injection cavity.

[0016] By adopting the above technical solution, when the upper half tube body and the lower half tube body are installed in the installation groove, the sealing rubber pad is abutted against the limit ring, thereby reducing the situation where the liquid moves to the hydraulic expansion sleeve through the gap between the upper half tube body, the lower half tube body and the limit plate.

[0017] Preferably, a clamping ring seat is arranged on the side of the hydraulic expansion sleeve away from the injection cavity, a plurality of clamping holes are arranged on the clamping ring seat, clamping bolts are inserted into the clamping holes, a plurality of clamping grooves are arranged on the side wall of the lower mold, and the clamping bolts are threadedly connected to the clamping grooves.

[0018] By adopting the above technical solution, after the hydraulic expansion sleeve is placed in the mounting hole, the clamping ring seat is installed on the lower mold through the clamping bolts, and then the hydraulic expansion sleeve is installed in the mounting hole and is not easy to move.

[0019] Preferably, a rubber pad is fixedly provided on the side of the clamping ring seat facing the lower mold.

[0020] By adopting the above technical solution, after the upper half of the tube body and the lower half of the tube body are locked in the hydraulic expansion sleeve, the position of the hydraulic expansion sleeve is adjusted by tightening the clamping bolt to drive the clamping ring seat to move and deform the rubber pad, so that the hydraulic expansion sleeve drives the upper half of the tube body and the lower half of the tube body to move, so that the sealing rubber pad abuts against the limit ring.

[0021] Preferably, a plurality of driving cylinders are fixedly arranged on the top of the base, and the output shafts of the driving cylinders are fixedly connected to the bottom of the upper mold.

[0022] By adopting the above technical solution, the output shaft of the driving cylinder drives the upper mold to move in the height direction, thereby achieving the effect of exposing or closing the injection cavity.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting the base, lower mold, upper mold, injection cavity, collection frame, mounting hole, upper half tube body, lower half tube body and flow hole, it is convenient to clean and dredge the flow hole;

[0025] 2. By providing a hydraulic expansion sleeve and a hydraulic cavity, the upper half of the tube and the lower half of the tube can be detachably installed in the installation hole;

[0026] 3. By setting a limit ring, the upper half tube body and the lower half tube body are not easily inserted into the injection molding cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of a high-efficiency injection molding device for molding a taillight trim panel in an embodiment of the present application.

[0028] Figure 2 yes Figure 1 Enlarged view of part A.

[0029] Figure 3 yes Figure 1 Enlarged view of part B.

[0030] Figure 4 It is a schematic diagram of the structure of a high-efficiency injection molding device for molding a taillight trim panel in an embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. base; 2. lower mold; 21. injection cavity; 3. upper mold; 31. driving cylinder; 4. collecting frame; 5. mounting hole; 6. circulation hole; 61. upper half of the tube body; 62. lower half of the tube body; 7. hydraulic expansion sleeve; 71. hydraulic cavity; 72. hydraulic pipe; 73. hydraulic valve; 8. limiting ring; 81. sealing rubber pad; 9. clamping ring seat; 91. clamping hole; 92. clamping groove; 93. clamping bolt; 94. rubber pad. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the present application discloses a high-efficiency injection molding device for molding a taillight trim. Figures 1 to 4 , including a base 1, a lower mold 2 and a plurality of driving cylinders 31 are installed on the top of the base 1, and the driving cylinders 31 are located around the lower mold 2. An upper mold 3 is installed on the output shaft of the driving cylinder 31, and the upper mold 3 is located directly above the lower mold 2. An injection cavity 21 is provided on the top of the lower mold 2, and the injection cavity 21 is provided for the upper mold 3 to be inserted. The output shaft of the driving cylinder 31 drives the upper mold 3 to move along the height direction to achieve the effect of exposing or closing the injection cavity 21. A plurality of mounting holes 5 are provided on the inner wall of the injection cavity 21, and the mounting holes 5 pass through the side wall of the lower mold 2. A plurality of collecting frames 4 are installed on the side wall of the lower mold 2 by bolts, and the collecting frames 4 are opposite to the mounting holes 5. An upper half tube body 61 and a lower half tube body 62 are detachably arranged in the mounting hole 5, and the upper half tube body 61 and the lower half tube body 62 are arranged opposite to each other, and a flow hole 6 is formed between the upper half tube body 61 and the lower half tube body 62. When the upper half tube body 61 and the lower half tube body 62 are relatively installed in the mounting hole 5, the flow hole 6 formed between the upper half tube body 61 and the lower half tube body 62 connects the injection cavity 21 and the collection frame 4. After the liquid is injected into the injection cavity 21, the excess liquid in the injection cavity 21 flows into the collection frame 4 through the flow hole 6, and then the upper mold 3 cooperates with the lower mold 2 to mold the liquid between the upper mold 3 and the lower mold 2. When the liquid solidifies in the flow hole 6, the upper half tube body 61 and the lower half tube body 62 are taken out of the mounting hole 5, and then the upper half tube body 61 and the lower half tube body 62 are separated, thereby exposing the flow hole 6 between the upper half tube body 61 and the lower half tube body 62, so that the flow hole 6 can be cleaned and unblocked.

[0034] In order to facilitate the disassembly of the upper half tube 61 and the lower half tube 62, refer to Figures 1 to 3 , a hydraulic expansion sleeve 7 is installed in the mounting hole 5, and a hydraulic cavity 71 is provided in the hydraulic expansion sleeve 7. A hydraulic pipe 72 is installed on the hydraulic expansion sleeve 7, and the hydraulic pipe 72 is connected with the hydraulic cavity 71, and a hydraulic valve 73 is installed on the hydraulic pipe 72. A clamping ring seat 9 is installed on the side of the hydraulic expansion sleeve 7 away from the injection cavity 21, and a plurality of clamping holes 91 are provided on the clamping ring seat 9, and clamping bolts 93 are arranged in the clamping holes 91. A plurality of clamping grooves 92 are provided on the side wall of the lower mold 2, and the clamping bolts 93 are threadedly connected with the clamping grooves 92. When the upper half tube body 61 and the lower half tube body 62 are installed in the mounting grooves, the hydraulic expansion sleeve 7 is first placed in the mounting hole 5. After the hydraulic expansion sleeve 7 is placed in the mounting hole 5, the clamping ring seat 9 is installed on the lower mold 2 through the clamping bolts 93, and then the hydraulic expansion sleeve 7 is installed in the mounting hole 5 and is not easy to move. Then the upper half pipe body 61 and the lower half pipe body 62 are placed relative to each other in the hydraulic expansion sleeve 7, and then the hydraulic valve 73 is opened, and the hydraulic medium is rushed into the hydraulic cavity 71 through the hydraulic pipe 72 to expand the hydraulic expansion sleeve 7. After the inner wall of the mounting hole 5 and the outer ring of the hydraulic expansion sleeve 7 are pressed against each other, and the outer wall of the upper half pipe body 61 and the outer wall of the lower half pipe body 62 are pressed against the inner ring of the hydraulic expansion sleeve 7, the hydraulic valve 73 is closed. When the upper half pipe body 61 and the lower half pipe body 62 are removed from the mounting groove, the hydraulic valve 73 is opened first to discharge the hydraulic medium in the hydraulic cavity 71, and then the upper half pipe body 61 and the lower half pipe body 62 are taken out of the hydraulic expansion sleeve 7.

[0035] In order to make it difficult for the upper half tube 61 and the lower half tube 62 to be inserted into the injection cavity 21, Figure 1 and Figure 2 , a limiting ring 8 is installed in the mounting hole 5, and the limiting ring 8 is located on the side of the hydraulic expansion sleeve 7 close to the injection cavity 21. The side of the limiting ring 8 close to the injection cavity 21 is flush with the inner wall of the injection cavity 21, and the end of the upper half tube 61 close to the injection cavity 21 and the end of the lower half tube 62 close to the injection cavity 21 are both in contact with the side of the limiting ring 8 away from the injection cavity 21. When the upper half tube 61 and the lower half tube 62 are installed in the mounting groove, the limiting ring 8 restricts the upper half tube 61 and the lower half tube 62 from being placed in the injection cavity 21, reducing the impact on the injection shape.

[0036] In order to prevent the liquid from flowing into the space between the hydraulic expansion sleeve 7 and the limit ring 8, refer to Figure 1 and Figure 2 A rubber sealing pad 81 is installed on one end of the upper tube body 61 close to the injection cavity 21 and one end of the lower tube body 62 close to the injection cavity 21, so that the sealing pad 81 abuts against the limiting ring 8 to reduce the flow of liquid to the hydraulic expansion sleeve 7 through the gap between the upper tube body 61, the lower tube body 62 and the limiting plate.

[0037] In order to make the sealing rubber pad 81 abut against the limiting ring 8, refer to Figures 1 to 3, the rubber pad 94 is installed on the side of the clamping ring seat 9 facing the lower mold 2. After the upper half tube body 61 and the lower half tube body 62 are locked in the hydraulic expansion sleeve 7, the position of the hydraulic expansion sleeve 7 is adjusted by screwing the clamping bolt 93 to drive the clamping ring seat 9 to move and deform the rubber pad 94, so that the hydraulic expansion sleeve 7 drives the upper half tube body 61 and the lower half tube body 62 to move, so that the sealing rubber pad 81 abuts against the limit ring 8.

[0038] The implementation principle of the high-efficiency injection molding device for forming the taillight trim plate of the embodiment of the present application is as follows: when the upper half tube body 61 and the lower half tube body 62 are installed in the installation groove, the hydraulic expansion sleeve 7 is first placed in the installation hole 5. After the hydraulic expansion sleeve 7 is placed in the installation hole 5, the clamping ring seat 9 is installed on the lower mold 2 through the clamping bolt 93. Then the upper half tube body 61 and the lower half tube body 62 are relatively placed in the hydraulic expansion sleeve 7, and then the hydraulic valve 73 is opened, and the hydraulic medium is rushed into the hydraulic cavity 71 through the hydraulic pipe 72 to expand the hydraulic expansion sleeve 7. After the inner wall of the installation hole 5 and the outer ring of the hydraulic expansion sleeve 7 are pressed against each other, and the outer wall of the upper half tube body 61 and the outer wall of the lower half tube body 62 are pressed against the inner ring of the hydraulic expansion sleeve 7, the hydraulic valve 73 is closed. After the upper half tube body 61 and the lower half tube body 62 are relatively installed in the installation hole 5, the flow hole 6 formed between the upper half tube body 61 and the lower half tube body 62 connects the injection cavity 21 and the collection frame 4. After the liquid is injected into the injection cavity 21, the excess liquid in the injection cavity 21 flows into the collection frame 4 through the circulation hole 6, and then the upper mold 3 cooperates with the lower mold 2 to mold the liquid between the upper mold 3 and the lower mold 2. When the liquid solidifies in the circulation hole 6, the hydraulic valve 73 is first opened to discharge the hydraulic medium in the hydraulic cavity 71, and then the upper half tube body 61 and the lower half tube body 62 are taken out from the hydraulic expansion sleeve 7. Then the upper half tube body 61 and the lower half tube body 62 are separated, thereby exposing the circulation hole 6 between the upper half tube body 61 and the lower half tube body 62, so that the circulation hole 6 can be cleaned and unblocked.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-efficiency injection molding device for molding a taillight trim plate, comprising a base (1), a lower mold (2) is arranged on the base (1), an upper mold (3) is arranged above the lower mold (2), an injection molding cavity (21) is provided at the top of the lower mold (2), and a plurality of collection frames (4) are detachably arranged on the side wall of the lower mold (2), characterized in that: The inner wall of the injection cavity (21) is provided with a plurality of mounting holes (5), the mounting holes (5) penetrate the side wall of the lower mold (2), the mounting holes (5) are arranged opposite to the collecting frame (4), an upper half tube body (61) and a lower half tube body (62) are detachably arranged in the mounting holes (5), the upper half tube body (61) and the lower half tube body (62) are arranged opposite to each other, and a flow hole (6) is formed between the upper half tube body (61) and the lower half tube body (62).

2. The high-efficiency injection molding device for molding a taillight trim according to claim 1, characterized in that: A hydraulic expansion sleeve (7) is arranged in the mounting hole (5), the inner wall of the mounting hole (5) is in contact with the outer ring of the hydraulic expansion sleeve (7), the outer wall of the upper half tube body (61) and the outer wall of the lower half tube body (62) are both in contact with the inner ring of the hydraulic expansion sleeve (7), and a hydraulic cavity (71) is arranged in the hydraulic expansion sleeve (7).

3. The high-efficiency injection molding device for molding a taillight trim according to claim 2, characterized in that: A hydraulic pipe (72) is arranged on the hydraulic expansion sleeve (7), the hydraulic pipe (72) is communicated with the hydraulic cavity (71), and a hydraulic valve (73) is arranged on the hydraulic pipe (72).

4. The high-efficiency injection molding device for molding a taillight trim according to claim 2, characterized in that: A limiting ring (8) is fixedly arranged in the mounting hole (5), and the limiting ring (8) is located on a side of the hydraulic expansion sleeve (7) close to the injection cavity (21), and an end of the upper half tube (61) close to the injection cavity (21) and an end of the lower half tube (62) close to the injection cavity (21) are both in contact with the limiting ring (8).

5. The high-efficiency injection molding device for molding a taillight trim according to claim 4, characterized in that: A sealing rubber pad (81) is fixedly provided on one end of the upper half tube (61) close to the injection cavity (21) and one end of the lower half tube (62) close to the injection cavity (21). The sealing rubber pad (81) is used to fit with the side of the limiting ring (8) away from the injection cavity (21).

6. The high-efficiency injection molding device for molding a taillight trim according to claim 2, characterized in that: A clamping ring seat (9) is arranged on the side of the hydraulic expansion sleeve (7) away from the injection cavity (21), a plurality of clamping holes (91) are provided on the clamping ring seat (9), clamping bolts (93) are inserted into the clamping holes (91), a plurality of clamping grooves (92) are provided on the side wall of the lower mold (2), and the clamping bolts (93) are threadedly connected to the clamping grooves (92).

7. The high-efficiency injection molding device for molding a taillight trim according to claim 6, characterized in that: A rubber pad (94) is fixedly arranged on the side of the clamping ring seat (9) facing the lower mold (2).

8. The high-efficiency injection molding device for molding a taillight trim according to claim 1, characterized in that: A plurality of driving cylinders (31) are fixedly arranged on the top of the base (1), and the output shafts of the driving cylinders (31) are fixedly connected to the bottom of the upper mold (3).

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