A lampshade injection mold

Abstract

This utility model provides a lampshade injection mold that ensures the inner pull block is aligned with the mold core, thereby reducing or even avoiding uneven depths on both sides of the inner pull line in the processed lampshade. Its structure includes an inner pull structure, which comprises an inner pull block and an inner pull base. One end of the inner pull block is slidably connected to the inner pull base, and the inner pull block can be pushed by the inner pull base to extend its other end into the cavity. The surface of the cavity includes the other end face of the inner pull block and the surface of the mold core. The key feature is that a height adjustment plate is installed between the inner pull base and the moving mold. When the moving mold is closed in place, the height adjustment plate raises the inner pull base and elevates the inner pull block so that its end face is aligned with the surface of the mold core.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a lampshade injection mold. Background Technology

[0002] Currently, due to factors such as product styling and appearance requirements, the requirements for product appearance and performance have been greatly improved. Most lamp cover products have internal pulling structures in their molds. For example, the patent with publication number CN208375878U discloses an injection mold for automotive headlights that drives the mold plate to separate and pull the core. Its moving mold is connected to the core pulling seat, which has an inclined surface. The inclined surface of the core pulling seat is provided with a T-shaped guide rail. The core pulling block is a T-shaped block, one end of which is slidably connected to the core pulling seat through the T-shaped guide rail, and the other end extends into the cavity. When the core pulling operation is performed, the moving mold drives the core pulling seat to move. The core pulling seat and the core pulling block move relative to each other, causing the core pulling block to exit the cavity, thus facilitating the removal of the product.

[0003] In actual processing and production, lampshades processed by injection molds often have uneven depths on both sides of the inner drawing lines. This affects the appearance requirements, causes appearance defects, and results in a low pass rate that fails to meet customer requirements. After analysis, it was found that the cause of this problem is the cumulative error in the injection mold processing, which causes the height of the inner drawing lines in some molds to be inconsistent with the mold core. This leads to problems such as rough inner drawing lines, flash, scratches, and inconsistent breakage sizes. Utility Model Content

[0004] To address the issue of uneven depth on both sides of the inner drawing line in lampshades processed by internal drawing molds, this utility model provides a lampshade injection mold that ensures the inner drawing block and the mold core are aligned at the same height, thereby reducing or even eliminating the occurrence of uneven depth on both sides of the inner drawing line in the processed lampshade.

[0005] The technical solution is as follows: a lampshade injection mold includes an inner drawing structure, the inner drawing structure includes an inner drawing block and an inner drawing base, one end of the inner drawing block is slidably connected to the inner drawing base, the inner drawing block can be pushed by the inner drawing base so that its other end extends into the cavity, the surface of the cavity includes the other end face of the inner drawing block and the surface of the mold core, characterized in that: a height adjustment plate is installed between the inner drawing base and the moving mold, the height adjustment plate can raise the inner drawing base when the moving mold is closed in place, and raise the inner drawing block so that its end face is aligned with the surface of the mold core.

[0006] Furthermore, the moving mold includes a C-plate and a moving mold frame. The C-plate is connected to the inner pull-out base. The moving mold frame is provided with a vertical mounting groove and an inclined mounting groove. The inclined mounting groove passes through the mold core. The inner pull-out base is located in the vertical mounting groove and can move up and down along the vertical mounting groove. The inner pull-out block is located in the inclined mounting groove and can move up and down along the inclined mounting groove.

[0007] Furthermore, the top of the inner drawer base is provided with an inclined T-shaped groove, and the bottom of the inner drawer block is provided with an inclined T-shaped block, the T-shaped block being slidably installed in the T-shaped groove.

[0008] Furthermore, the C-plate is connected to the inner drawer base by connecting bolts, and the height adjustment plate is provided with a clearance notch to avoid the connecting bolts.

[0009] Beneficial effects: By setting a height adjustment plate to be placed between the inner pull base and the C plate, and designing the thickness of the height adjustment plate according to the actual situation of the mold, the height of the inner pull base can be increased, so that the inner pull block can be inserted deeper into the cavity when the mold is closed and its end face is flush with the end face of the mold core, thereby reducing or even avoiding the occurrence of uneven depth on both sides of the inner pull line in the processed lampshade. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the height adjustment plate.

[0012] Figure 3 This is a schematic diagram of the installation structure of the height adjustment plate;

[0013] Figure 4 A schematic diagram of a multi-station lampshade injection mold structure; Detailed Implementation

[0014] like Figure 1 The lampshade injection mold shown includes an inner drawing structure, which comprises an inner drawing block 1 and an inner drawing base 2. One end of the inner drawing block 1 is slidably connected to the inner drawing base 2. The inner drawing block 1 can be pushed by the inner drawing base 2 so that its other end extends into the cavity. The surface of the cavity includes the end face of the other end of the inner drawing block 1 and the surface of the mold core 3. A fitting is installed between the inner drawing base 2 and the moving mold. Figure 2 The height adjustment plate 4 shown can raise the inner draw base 2 and raise the inner draw block 1 so that its end face is aligned with the surface of the mold core 3 when the moving mold is closed.

[0015] Specifically, the moving mold includes a C-plate 5 and a moving mold frame 6. The C-plate 5 is connected to the inner drawer base 2. The moving mold frame 6 has a vertical mounting groove and an inclined mounting groove. The inclined mounting groove passes through the mold core 3. The inner drawer base 2 is located in the vertical mounting groove and can move up and down along the vertical mounting groove. The inner drawer block 1 is located in the inclined mounting groove and can move up and down along the inclined mounting groove. The top of the inner drawer base 2 has an inclined T-shaped groove, and the bottom of the inner drawer block 1 has an inclined T-shaped block. The T-shaped block is slidably installed in the T-shaped groove.

[0016] Combination Figure 3 Plate C5 is connected to the inner drawer base 2 by connecting bolts. The height adjustment plate 4 has clearance notches 4-1 on both sides to allow the connecting bolts to pass. Figure 3 2-1 is a bolt mounting hole.

[0017] By adopting the above structure, during mold opening, the C-plate 5 drives the inner pull base 2 to move. While the inner pull base 2 moves within the vertical mounting groove, it applies a downward pulling force to the T-shaped block through the T-slot, causing it to move along the inclined mounting groove, thereby removing its end from the cavity. During mold closing, the inner pull base 2 correspondingly pushes the inner pull block 1 upward. Due to the height adjustment plate 4, it can be ensured that the end face of the inner pull block 1 is aligned with the surface of the mold core 3 when the mold is closed, thereby reducing or even avoiding the occurrence of uneven depths on both sides of the inner pull lines in the processed lampshade.

[0018] In addition, it is worth mentioning that, combined with Figure 4 For multi-station injection molds, the cumulative error of each mold may not be the same, for example... Figure 4 The gap between the inner base 2 of the left mold and plate C (at point a) is different from the gap at the corresponding position (at point b) of the right mold. Therefore, the thickness of the height adjustment plate 4 of the multi-station injection mold can be selected according to the actual mold size and adjustment requirements, generally around 10mm, to ensure stable support of the inner base during adjustment. The height adjustment plate 4 can be made of alloy steel with high strength and wear resistance, which is durable and not easily deformed or damaged, thus ensuring the long-term stability of the inner height.

[0019] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A lampshade injection mold, comprising an inner drawing structure, the inner drawing structure including an inner drawing block and an inner drawing base, one end of the inner drawing block being slidably connected to the inner drawing base, the inner drawing block being able to be pushed by the inner drawing base to extend its other end into a cavity, the surface of the cavity including the end face of the other end of the inner drawing block and the surface of the mold core, characterized in that: A height adjustment plate is installed between the inner base and the moving mold. The height adjustment plate can raise the inner base when the moving mold is closed and raise the inner block so that its end face is aligned with the surface of the mold core.

2. The lampshade injection mold according to claim 1, characterized in that: The moving mold includes a C-plate and a moving mold frame. The C-plate is connected to the inner pull base. The moving mold frame is provided with a vertical mounting groove and an inclined mounting groove. The inclined mounting groove passes through the mold core. The inner pull base is located in the vertical mounting groove and can move up and down along the vertical mounting groove. The inner pull block is located in the inclined mounting groove and can move up and down along the inclined mounting groove.

3. The lampshade injection mold according to claim 2, characterized in that: The top of the inner drawer base is provided with an inclined T-shaped groove, and the bottom of the inner drawer block is provided with an inclined T-shaped block, which is slidably installed in the T-shaped groove.

4. The lampshade injection mold according to claim 2, characterized in that: The C-plate is connected to the inner drawer base by connecting bolts, and the height adjustment plate is provided with a clearance notch to avoid the connecting bolts.

Images