A plastic mold for easy part removal

By introducing a drive structure and a toothed plate to rotate the mold in the plastic mold, the problem of burns during part removal is solved, and safe and convenient product removal is achieved.

CN224426340UActive Publication Date: 2026-06-30SHENZHEN BOYIYANG PRECISION MOLD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BOYIYANG PRECISION MOLD CO LTD
Filing Date
2025-05-26
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing plastic molds pose a risk of burns to operators due to high temperatures during part removal, and part removal is inconvenient.

Method used

A plastic mold designed for easy part removal uses a drive structure to engage a toothed plate with a gear, rotating the mold to facilitate part removal and avoid direct contact with the high-temperature mold.

Benefits of technology

It enables safe and convenient removal of plastic products, avoids the risk of burns, and improves the safety of operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of plastic mold technology and discloses a plastic mold that facilitates part removal. It includes a support frame, an injection molding mechanism on the inner side of the support frame, a flipping component inside the injection molding mechanism, and a drive structure on the outer side of the support frame. The outer side of the drive structure is in contact with the flipping component. The injection molding mechanism includes a support block and a moving block. The bottom of the support block is connected to the outer side of the support frame, and the top of the moving block is movably connected to the inner wall of the support frame. This utility model features a toothed plate and a mold. By starting the drive motor, the moving frame is driven to press the toothed plate. Due to the meshing between the toothed plate and the gears, the connecting rod and the mold rotate, causing the product to rotate out. This facilitates part removal by the operator, preventing accidental contact with the mold and potential burns, thus providing convenience for the operator.
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Description

Technical Field

[0001] This utility model belongs to the field of plastic mold technology, specifically a plastic mold that facilitates part removal. Background Technology

[0002] Plastic molds play a crucial role in the production of plastic products. Through processes such as injection molding, plastic molds can shape molten plastic raw materials into various plastic products with specific shapes and sizes, and are widely used in many fields such as electronics, automobiles, home appliances, and daily necessities.

[0003] In existing plastic molds, molten plastic is filled into the mold through an injection port. After cooling, a plastic product of a specific shape is formed. When removing the product from the mold, the upper and lower molds are separated, and then a hand is reached inside to remove the product. Although cooling occurs during removal, the mold temperature remains high, which can cause burns if the hand is accidentally touched during removal, making the process inconvenient. Therefore, improvements are needed. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a plastic mold that facilitates part removal.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic mold for easy part removal, comprising a support frame, an injection molding mechanism disposed on the inner side of the support frame, a flipping component disposed inside the injection molding mechanism, and a driving structure disposed on the outer side of the support frame, wherein the outer side of the driving structure is in contact with the flipping component.

[0006] The injection molding mechanism includes a support block and a moving block. The bottom of the support block is connected to the outside of the support frame, and the top of the moving block is movably connected to the inner wall of the support frame. A mold is movably installed inside both the support block and the moving block.

[0007] The flipping assembly includes a connecting rod, the outer surface of which is connected to the inner wall of the mold. Gears are provided on both sides of the connecting rod, and a toothed plate is provided at the bottom of the gear. The top of the toothed plate is meshed with the outer surface of the gear, and the outer side of the toothed plate extends to the outside of the support block and the moving block.

[0008] Preferably, a pneumatic cylinder is provided on the top of the support frame, and the bottom of the pneumatic cylinder is connected to the top of the moving block.

[0009] Preferably, both the support block and the moving block are provided with mounting rods on their inner walls, and the outer surface of the mounting rods is movably connected to the inner wall of the toothed plate.

[0010] Preferably, a spring is provided on the outer side of the mounting rod, and the other end of the spring is connected to the inner wall of the toothed plate.

[0011] Preferably, the drive structure includes a drive motor, the inner side of which is connected to the outer side of the support frame, the drive motor is driven by a lead screw, the outer surface of which is threaded with a movable frame, and the inner side of the movable frame is movably connected to the outer side of the toothed plate.

[0012] Preferably, the inner wall of the support frame is provided with a limiting rod, and the outer surface of the limiting rod is movably connected to the inner wall of the movable frame.

[0013] Preferably, there are two molds, which are symmetrically arranged on the support block and the moving block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model is equipped with a toothed plate and a mold. By starting the drive motor, the movable frame is driven to squeeze the toothed plate. Then, due to the meshing between the toothed plate and the gear, the connecting rod and the mold are rotated, causing the product to be rotated out. This makes it convenient for the operator to pick up the part and avoids accidental contact with the mold, which could cause burns. This brings convenience to the operator in picking up the part. Attached Figure Description

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

[0017] Figure 2 This is a side sectional view of the present invention.

[0018] Figure 3 This is a cross-sectional view of the support block of this utility model;

[0019] Figure 4 This is a side view of the structure of this utility model.

[0020] In the diagram: 1. Support frame; 2. Injection molding mechanism; 201. Support block; 202. Pneumatic cylinder; 203. Moving block; 204. Mold; 3. Tilting assembly; 301. Connecting rod; 302. Gear; 303. Mounting rod; 304. Toothed plate; 305. Spring; 4. Drive structure; 401. Drive motor; 402. Lead screw; 403. Movable frame; 404. Limiting rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] like Figures 1 to 4 As shown, this is the first embodiment of the utility model, which provides a plastic mold that is easy to remove parts. It includes a support frame 1, an injection molding mechanism 2 is provided on the inner side of the support frame 1, a flipping component 3 is provided inside the injection molding mechanism 2, and a driving structure 4 is provided on the outer side of the support frame 1. The outer side of the driving structure 4 is in contact with the flipping component 3.

[0024] The injection molding mechanism 2 includes a support block 201 and a moving block 203. The bottom of the support block 201 is connected to the outside of the support frame 1, and the top of the moving block 203 is movably connected to the inner wall of the support frame 1. A mold 204 is movably installed inside both the support block 201 and the moving block 203.

[0025] The flipping assembly 3 includes a connecting rod 301, the outer surface of which is connected to the inner wall of the mold 204. Gears 302 are provided on both sides of the connecting rod 301. A toothed plate 304 is provided at the bottom of the gear 302. The top of the toothed plate 304 is meshed with the outer surface of the gear 302. The toothed plate 304 extends to the outside of the support block 201 and the moving block 203.

[0026] By activating the drive structure 4, the drive structure 4 compresses the extended toothed plate 304, thereby squeezing the toothed plates 304 extending from the support block 201 and the moving block 203 into the inner cavity. Then, because the outer surface of the gear 302 meshes with the top of the toothed plate 304, the toothed plate 304 drives the gear 302 and the connecting rod 301 to rotate, and the connecting rod 301 drives the mold 204 to rotate, rotating the mold 204 to 100 degrees, thereby facilitating the flipping out of the product inside the mold 204 for removal, and avoiding accidental contact with the mold 204 during removal.

[0027] Example 2

[0028] like Figure 2 and Figure 4 As shown, this embodiment includes the features of embodiment 1. The distinguishing technical feature is that a pneumatic cylinder 202 is provided on the top of the support frame 1, and the bottom of the pneumatic cylinder 202 is connected to the top of the moving block 203.

[0029] By activating the pneumatic cylinder 202, the moving block 203 is moved downward, which combines the support block 201 and the moving block 203 together, thereby forming a closed inner cavity in the mold 204 on the inner side of the support block 201 and the moving block 203, which can be used to produce and process plastic products.

[0030] The inner walls of both the support block 201 and the moving block 203 are provided with mounting rods 303, and the outer surface of the mounting rods 303 is movably connected to the inner wall of the toothed plate 304.

[0031] When the drive structure 4 is running, it presses the toothed plate 304, causing the toothed plate 304 to move on the outer surface of the mounting rod 303. The mounting rod 303 then limits the toothed plate 304 to prevent it from shifting position during movement.

[0032] Among them, a spring 305 is provided on the outside of the mounting rod 303, and the other end of the spring 305 is connected to the inner wall of the toothed plate 304;

[0033] At this time, since the spring 305 is in a compressed state, it will apply an outward pressure to the toothed plate 304 to prevent the mold 204 from rotating out of the support block 201 or the moving block 203. At the same time, through the elastic recovery effect of the spring 305, the toothed plate 304 will be reset, which brings convenience to the operator for picking up and using materials.

[0034] Among them, the drive structure 4 includes a drive motor 401, the inner side of the drive motor 401 is connected to the outer side of the support frame 1, the drive motor 401 is driven by a lead screw 402, the outer surface of the lead screw 402 is threaded with a movable frame 403, and the inner side of the movable frame 403 is movably connected to the outer side of the toothed plate 304.

[0035] At this time, the drive motor 401 is started, and the movable frame 403 is moved through the lead screw 402. The movable frame 403 then squeezes and moves the toothed plate 304, making it easier to rotate the mold 204 out of the support block 201 and the moving block 203 through the flipping component 3. This makes it easier to remove the product and avoids accidentally touching the mold 204 when removing the product.

[0036] Among them, the inner wall of the support frame 1 is provided with a limit rod 404, and the outer surface of the limit rod 404 is movably connected to the inner wall of the movable frame 403;

[0037] When the movable frame 403 moves via the drive motor 401, the movable frame 403 moves on the outer surface of the limiting rod 404. The limiting rod 404 limits the movable frame 403 to prevent it from shifting position.

[0038] There are two molds 204, which are symmetrically arranged on the support block 201 and the moving block 203.

[0039] By rotating the two molds 204, the molded product is prevented from adhering to one of the two molds 204, making it easier to remove the plastic product and bringing convenience to the operator.

[0040] Working principle and usage process of this utility model:

[0041] First, when processing plastic products, the pneumatic cylinder 202 is activated to drive the moving block 203 to merge with the support block 201, thereby combining the two molds 204 for casting. After cooling for a period of time, the pneumatic cylinder 202 drives the moving block 203 to reset, moving the mold 204 to the top. Then, the drive motor 401 is activated, and the lead screw 402 drives the movable frame 403 to move on the outer surface of the limit rod 404. The movable frame 403 presses the toothed plate 304. Due to the meshing between the toothed plate 304 and the gear 302, the toothed plate 304 drives the gear 302, the connecting rod 301, and the mold 204 to rotate, causing the internal product to be unscrewed. This makes it easier for the operator to remove the product and avoids accidental contact with the mold 204, which could lead to safety hazards, thus providing convenience for the operator.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] 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 plastic mold for easy part removal, comprising a support frame (1), characterized in that: The support frame (1) is provided with an injection molding mechanism (2) inside, and a flipping component (3) is provided inside the injection molding mechanism (2). The support frame (1) is provided with a driving structure (4) on the outside, and the driving structure (4) is in contact with the flipping component (3) on the outside. The injection molding mechanism (2) includes a support block (201) and a moving block (203). The bottom of the support block (201) is connected to the outside of the support frame (1), and the top of the moving block (203) is movably connected to the inner wall of the support frame (1). A mold (204) is movably arranged inside both the support block (201) and the moving block (203). The flipping assembly (3) includes a connecting rod (301), the outer surface of which is connected to the inner wall of the mold (204). Gears (302) are provided on both sides of the connecting rod (301). A toothed plate (304) is provided at the bottom of the gear (302). The top of the toothed plate (304) meshes with the outer surface of the gear (302). The toothed plate (304) extends to the outside of the support block (201) and the moving block (203).

2. The plastic mold for easy part removal according to claim 1, characterized in that: The support frame (1) is equipped with a pneumatic cylinder (202) at the top, and the bottom of the pneumatic cylinder (202) is connected to the top of the moving block (203).

3. A plastic mold for easy part removal according to claim 1, characterized in that: The inner walls of both the support block (201) and the moving block (203) are provided with mounting rods (303), and the outer surface of the mounting rods (303) is movably connected to the inner wall of the toothed plate (304).

4. A plastic mold for easy part removal according to claim 3, characterized in that: A spring (305) is provided on the outside of the mounting rod (303), and the other end of the spring (305) is connected to the inner wall of the toothed plate (304).

5. A plastic mold for easy part removal according to claim 1, characterized in that: The drive structure (4) includes a drive motor (401), the inner side of which is connected to the outer side of the support frame (1), the drive motor (401) is driven by a lead screw (402), the outer surface of the lead screw (402) is threaded with a movable frame (403), and the inner side of the movable frame (403) is movably connected to the outer side of the toothed plate (304).

6. A plastic mold for easy part removal according to claim 5, characterized in that: The inner wall of the support frame (1) is provided with a limiting rod (404), and the outer surface of the limiting rod (404) is movably connected to the inner wall of the movable frame (403).

7. A plastic mold for easy part removal according to claim 1, characterized in that: Two molds (204) are provided, and the two molds (204) are symmetrically arranged on the support block (201) and the moving block (203).