Plastic mold large inclined top structure based on rear light two-color light distribution mirror

Abstract

The utility model relates to a plastic mould big inclined ejection structure based on rear light bicolor distribution light mirror belongs to the technical field of injection mould, including mould base plate, be equipped with B plate mould kernel on mould base plate, be equipped with a pair of injection insert on B plate mould kernel, be equipped with a plurality of inclined ejection assembly that extends to the end face of injection insert and passes through B plate mould kernel on mould base plate. The inclined ejection assembly includes inclined ejection block, the lower end of inclined ejection block is equipped with T-shaped rod, the T-shaped groove that is integrated with inclined ejection block is equipped between T-shaped rod and inclined ejection block, when the ejection of inclined ejection block, the relative motion of T-shaped rod and T-shaped groove makes inclined ejection block carry out falling movement. Have the characteristics that simple structure and stable operation are good. According to the situation that the inner extraction slide block does not open when first forming is completed and opens again after second forming is completed, change the inner extraction slide block into falling type inclined ejection block. Realize the reduction of spring plate, and B plate synthesis is a piece, and the manufacturing cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a large inclined top structure for a plastic mold based on a dual-color light distribution lens for a rear light. Background Technology

[0002] When the rear light dual-color lens has an undercut, an inner sliding block is usually used to achieve the undercut demolding of the product. Since the dual-color mold has two molding processes, it is required that the inner sliding block does not open when the first molding is completed, and only opens after the second molding is completed. In order to achieve the action of the inner sliding block not opening after the first molding and opening after the second molding, the B plate needs to be separated into two pieces, which are completed by the cooperation of the locking machine. The locking machine has high precision requirements, the mold processing precision and assembly have high requirements, and the cost is relatively high. Summary of the Invention

[0003] This invention primarily addresses the shortcomings of existing technologies by providing a large inclined ejector structure for a plastic mold based on a dual-color rear light distribution lens. This structure is characterized by its simple design and good operational stability. Addressing the issue that the inner sliding block of the dual-color rear light distribution lens does not open after the first molding and only opens after the second molding, the inner sliding block is replaced with a downward-falling inclined ejector block. This reduces the number of spring plates, and the B-plate is integrated into a single piece, significantly lowering manufacturing costs.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solutions: A large angled ejector structure for a plastic mold based on a dual-color rear light lens includes a mold base plate, on which a B-plate mold core is provided. A pair of injection molding inserts are provided on the B-plate mold core. The mold base plate has several angled ejector components that penetrate the B-plate mold core and extend to the end faces of the injection molding inserts. Each angled ejector component includes an angled ejector block. A T-shaped rod is provided at the lower end of the angled ejector block. A T-shaped groove, integral with the angled ejector block, is provided between the T-shaped rod and the angled ejector block. When the angled ejector block is ejected, the T-shaped rod and the T-shaped groove move relative to each other, causing the angled ejector block to fall.

[0005] The mold base plate is the bottom foundation plate of the entire mold, supporting all other components and connected to the fixed plate of the injection molding machine. The B-plate mold core is one of the core molding components of the mold, typically forming the cavity (outer wall) of the product. It is fixed to the mold base plate and comes into direct contact with the molten plastic, forming the outer surface of the rear light lens.

[0006] Injection inserts are a pair of parts embedded in the B-plate mold core, used to form complex or delicate features on the product that are difficult to machine directly on the mold core. The first injection molding forms the main body, then the mold rotates or switches, and the second injection molding forms another part through this pair of inserts.

[0007] Preferably, an ejector plate is provided between the mold base plate and the B plate mold core. The ejector plate has several screws that are threadedly connected and fixed to the T-shaped rod. The ejector plate has several pads that support the B plate mold core on its outer periphery.

[0008] The ejector plate is the "power distribution plate" of the ejection system. When the injection molding machine's ejector roller pushes it, it moves upward and transmits this thrust to all the ejector assemblies connected to it. The spacer ensures sufficient and uniform space between the B-plate mold core and the mold base plate to accommodate the ejection system (ejector plate, ejector assemblies, etc.) and to prevent the B-plate mold core 1 from deforming under the huge injection pressure.

[0009] Preferably, the T-shaped rod and the inclined top block are connected and fixed with screws.

[0010] Preferably, the mold base plate is provided with a plurality of assembly holes that communicate with screws.

[0011] Preferably, the T-shaped rod has guide rods on both its left and right sides that slide and insert into the B-plate mold core, and a guide sleeve is provided between the guide rod and the inclined ejector block to ensure that the inclined ejector block moves in the direction of the guide rod.

[0012] Preferably, the T-shaped rod is provided with guide blocks on both its front and rear sides, which slide and limit its movement along the grooves of the B-plate mold core. The guide blocks engage with the grooves on the B-plate mold core 1, serving to limit movement and prevent rotation. The guide blocks slide within the grooves, ensuring that the T-shaped rod and the inclined ejector block can only move along the preset track, preventing rotation caused by uneven force, and guaranteeing motion accuracy and mold life.

[0013] This invention can achieve the following effects: This invention provides a large angled ejector structure for a plastic mold based on a dual-color rear light distribution lens. Compared with existing technologies, for the case where the inner sliding block of the dual-color rear light distribution lens does not open after the first molding and only opens after the second molding, the inner sliding block is changed to a falling angled ejector block. This reduces the number of spring plates, and the B-plate is combined into one piece, significantly reducing manufacturing costs. The angled ejector structure has simpler movement, unlike the complex inner sliding block which does not open after the first molding and only opens after the second molding, resulting in higher stability.

[0014] Reliable structure and high ejection force: It adopts the classic structure of T-shaped rod and T-shaped groove, and is rigidly connected to the ejector plate by screws. The power transmission is direct and reliable, and it can provide a strong ejection force, which is suitable for large products or products with high clamping force (such as automotive taillights).

[0015] Precise guidance and stable movement: The dual guidance and limiting design of "guide rod + guide sleeve" and "guide block + slide" greatly improves the accuracy and stability of the inclined ejector movement, and effectively prevents jamming, wear and product ejection deformation.

[0016] Easy maintainability: As a consumable part, the guide sleeve 9 can be replaced individually, reducing maintenance costs. The screw connection also makes the disassembly and installation of the inclined top assembly relatively convenient.

[0017] Reasonable layout: The four inclined ejector components are radially symmetrically distributed on the two injection inserts. This layout ensures that the ejection force is evenly distributed, which can prevent the product from tilting or being damaged due to uneven force. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a structural cross-sectional view of the present invention.

[0020] Figure 3 This is a structural schematic diagram of the inclined top component in this utility model.

[0021] In the diagram: 1. B plate mold core, 2. mold base plate, 3. injection insert, 4. angled ejector assembly, 5. ejector plate, 6. pad block, 7. angled ejector block, 8. T-slot, 9. guide sleeve, 10. guide rod, 11. T-bar, 12. screw, 13. guide block, 14. assembly hole. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0023] Example: Figure 1 , Figure 2 and Figure 3As shown, a large inclined ejector structure for a plastic mold based on a dual-color rear light distribution lens includes a mold base plate 2, a B-plate mold core 1 on the mold base plate 2, a pair of injection inserts 3 on the B-plate mold core 1, and four inclined ejector assemblies 4 on the mold base plate 2 that penetrate the B-plate mold core 1 and extend to the end face of the injection inserts 3. Each injection insert 3 has a pair of radially symmetrically distributed inclined ejector assemblies 4. An ejector plate 5 is provided between the mold base plate 2 and the B-plate mold core 1. The ejector plate 5 has two screws 12 that are threadedly fixed to a T-shaped rod (11). The mold base plate 2 has eight assembly holes 14 that communicate with the screws 12. Fourteen pads 6 supporting the B-plate mold core 1 are provided around the ejector plate 5. The inclined ejector assembly 4 includes an inclined ejector block 7, and a T-shaped rod 11 is provided at the lower end of the inclined ejector block 7. The T-shaped rod 11 and the inclined ejector block 7 are connected and fixed by screws 12. A T-shaped groove 8, integral with the inclined ejector block 7, is provided between the T-shaped rod 11 and the inclined ejector block 7. When the inclined ejector block 7 is ejected, the T-shaped rod 11 and the T-shaped groove 8 move relative to each other, causing the inclined ejector block 7 to fall. Guide rods 10, which are slidably inserted into the B-plate mold core 1, are provided on both the left and right sides of the T-shaped rod 11. Guide sleeves 9, which are sleeved between the guide rods 10 and the inclined ejector block 7, are provided. Guide blocks 13, which are slidingly limited and slidably limited with the B-plate mold core 1, are provided on both the front and rear sides of the T-shaped rod 11.

[0024] Working principle: Mold closing injection molding: The mold is closed, and the molten plastic is injected into the closed cavity composed of B plate mold core 1, injection insert 3 and other components (such as A plate mold core), and cooled and solidified to form the rear lamp bicolor light distribution lens product.

[0025] Mold opening: The mold is opened, and the product shrinks and wraps tightly around the core on one side of the mold core 1 on plate B.

[0026] Ejection begins: The ejector pin of the injection molding machine extends forward, pushing the ejector plate 5 upward.

[0027] Power transmission: The ejector plate 5 drives the four T-shaped rods 11 to move synchronously and vertically upward through the screw 12.

[0028] The oblique motion is achieved as follows: When the T-shaped rod 11 moves upward, its T-shaped head slides relative to the T-shaped groove 8 of the oblique top block 7. Since the T-shaped groove 8 is inclined (with the same inclination as the oblique top block), this relative sliding forces the oblique top block 7 to slide horizontally in the opposite direction of the product's undercut while moving upward.

[0029] Guiding and limiting: Throughout the movement: the guide rod 10 slides within the guide sleeve 9, ensuring the straightness of the movement. The guide block 13 slides within the groove of the B-plate mold core 1, preventing the component from rotating and ensuring the stability of the movement.

[0030] Product demolding: The combined motion (up + slide) of the inclined ejector block 7 allows it to smoothly detach from the product's undercut or inclined structure, ultimately ejecting the product completely out of the mold.

[0031] Reset: After ejection is completed, the injection molding machine ejector roller retracts, the mold reset mechanism pulls the ejector plate 5 back to its original position, the T-shaped rod 11 descends accordingly, and the inclined ejector block 7 returns to the initial molding position under the guidance of the T-shaped groove 8, ready for the next injection cycle.

[0032] In summary, the large inclined ejector structure of the plastic mold based on the dual-color rear light lens features simple structure and good operational stability. Addressing the issue that the inner sliding block of the dual-color rear light lens does not open after the first molding and only opens after the second molding, the inner sliding block was changed to a falling inclined ejector block. This reduces the number of spring plates, and the B-plate is combined into one piece, significantly reducing manufacturing costs.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] In summary, the above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A large inclined top structure for a plastic mold based on a dual-color rear light distribution lens, characterized in that: The system includes a mold base plate (2), on which a B plate mold core (1) is provided, and on which a pair of injection molding inserts (3) are provided. The mold base plate (2) is provided with several inclined ejector components (4) that penetrate the B plate mold core (1) and extend to the end face of the injection molding inserts (3). The inclined ejector components (4) include an inclined ejector block (7), and a T-shaped rod (11) is provided at the lower end of the inclined ejector block (7). A T-shaped groove (8) is provided between the T-shaped rod (11) and the inclined ejector block (7) and is integrated with the inclined ejector block (7). When the inclined ejector block (7) is ejected, the T-shaped rod (11) and the T-shaped groove (8) move relative to each other, causing the inclined ejector block (7) to fall.

2. The two-color light distribution mirror-based rear lamp plastic mold knockout structure of claim 1, wherein: An ejector plate (5) is provided between the mold base plate (2) and the B plate mold core (1). The ejector plate (5) is provided with a number of screws (12) that are threadedly connected and fixed to the T-shaped rod (11). The ejector plate (5) is provided with a number of pads (6) that support the B plate mold core (1) on its periphery.

3. The two-color light distribution mirror-based rear lamp plastic mold knock-out structure of claim 2, wherein: The T-shaped rod (11) and the inclined top block (7) are connected and fixed by screws (12).

4. The two-color light distribution mirror-based rear lamp plastic mold knockout structure of claim 2, wherein: The mold base plate (2) is provided with several assembly holes (14) that are connected to screws (12).

5. The two-color light distribution mirror-based taillight plastic mold kick structure of claim 1, wherein: The T-shaped rod (11) is provided with guide rods (10) on both the left and right sides, which are slidably inserted into the B plate mold core (1). The guide rod (10) and the inclined top block (7) are provided with guide sleeves (9) that are sleeved with the guide rod (10).

6. The two-color light distribution mirror-based taillight plastic mold kick structure of claim 1, wherein: The T-shaped rod (11) is provided with guide blocks (13) on both the front and rear sides, which slide in a groove-type limiting manner with the B plate mold core (1).

Images