Inclined ejection mold stripping structure of injection molding equipment

By using an upward-moving inclined top block structure, the problems of low demolding efficiency and interference in traditional injection molding equipment are solved, achieving efficient and stable product demolding and equipment operation.

CN224089584UActive Publication Date: 2026-04-07ZHONGSHAN JIRUI PRECISION MOLD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The vertical demolding method of the inclined ejector block in traditional injection molding equipment results in low demolding efficiency, easy damage to products, and easy interference with other components, affecting production efficiency and equipment stability.

Method used

The inclined top block structure moves upward at an angle. Through the cooperation of guide grooves and guide blocks, the stable movement of the inclined top block is ensured, avoiding interference with other components. Combined with the straight top block, it provides stable support.

Benefits of technology

It improves product demolding efficiency, reduces product surface scratches and deformation, lowers the risk of mold damage, and enhances equipment operational stability and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an inclined ejection mold stripping structure of injection molding equipment, and aims to improve the demolding efficiency and quality and ensure the structural stability and reliability at the same time. The structure comprises a base plate, an insert, a push block, a guide block, an inclined ejector block and a straight ejector block. The insert is fixed on the base plate, the guide block is fixed on the insert obliquely upwards, the inclined ejector block is attached to the side face of the insert pin and is provided with an L-shaped guide groove, and the guide block is embedded into the L-shaped guide groove to ensure stable movement. The straight ejector block is vertically arranged on the substrate, the top is connected with the inclined ejector block, and the lower end extends below the substrate to provide support. The push block is located at the top of the inclined ejector block and used for pushing the inclined ejector block to complete demolding. Guide grooves are formed in two sides of the inclined ejector block, so that the stability is enhanced; the inclined surface of the insert is provided with a mounting groove for fixing the guide block; and the guide block is firmly and reliably connected with the insert through a screw.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding equipment, in particular to a slanted ejection structure of injection molding equipment. BACKGROUND

[0002] In the injection molding process, the demolding process of the product is one of the key links affecting production efficiency and product quality. In traditional injection molding equipment, the slanted ejector block usually moves vertically upward for demolding. However, this design has many problems. First, the vertically upward moving slanted ejector block has a poor contact angle with the product surface during the demolding process, resulting in low demolding efficiency. Especially on some complex shaped products, vertical demolding can easily cause the product surface to be scratched or deformed, seriously affecting product quality. Second, the vertically arranged slanted ejector block is prone to interference with other components during movement. For example, in the complex structure of the mold, the vertically moving slanted ejector block may collide with the surrounding core, insert or other mechanical structures, causing the mold to be damaged or jammed, increasing the maintenance cost and downtime of the equipment. In addition, such interference can also cause the demolding action to be not smooth, further reducing production efficiency. CONTENT OF THE UTILITY MODEL

[0003] To solve the problem of poor demolding efficiency of the existing injection molding machine using a slanted ejector block, the present application provides a slanted ejection structure of injection molding equipment. The specific technical scheme of the present application is as follows:

[0004] A slanted ejection structure of injection molding equipment, comprising: a base plate, an insert, a push block, a guide block, a slanted ejector block and a straight ejector block, the insert is fixedly arranged on the base plate, the guide block is fixedly arranged on the insert in a slanted upward manner, the slanted ejector block is arranged on the side surface of the insert needle in a slanted upward manner, the side surface of the slanted ejector block arranged with a guide groove, the guide block is located in the guide groove, the straight ejector block is vertically arranged on the base plate, the top of the straight ejector block is connected with the top of the slanted ejector block, the lower end of the straight ejector block extends below the bottom of the base plate after penetrating through the base plate, and the push block is located at the top of the insert and the slanted ejector block.

[0005] Further, the cross section of the guide groove is L-shaped, and the guide block is provided with an L-shaped guide portion matched with the L-shaped guide groove.

[0006] Further, two guide grooves are arranged on the slanted ejector block, and the guide grooves are arranged on both sides of the slanted ejector block.

[0007] Further, the side surface of the insert opposite to the slanted ejector block is a bevel surface, the bevel surface is provided with a mounting groove, and the guide block is fixedly arranged in the mounting groove.

[0008] Further, a screw hole is arranged on the guide block, and the guide block is fixed with the insert through a screw.

[0009] Further, the bottom of the inclined ejector block is provided with an insertion block, and the top of the base plate is provided with an insertion slot matched with the insertion block.

[0010] Further, the side surface of the inclined ejector block opposite to the guide slot is provided with a stripe slot.

[0011] Further, the upper end of the straight ejector block is provided with a limiting part, and the top of the base plate is provided with a placing slot for placing the limiting part.

[0012] Further, the top of the limiting part is provided with a clamping block, and the bottom of the inclined ejector block is provided with a clamping slot matched with the clamping block.

[0013] Compared with the prior art, the beneficial effects of the present application are as follows: when the product is demolded, the straight ejector block pushes the inclined ejector block, so that the inclined ejector block moves obliquely upward along the guide block. This oblique movement has significant advantages. First, the contact angle between the inclined ejector block and the product surface is more reasonable, which can more smoothly push the product out of the mold, thereby significantly improving the product demolding effect. Compared with the traditional vertical demolding method, the oblique demolding can reduce the surface scratches and deformation of the product, and ensure the appearance quality and dimensional accuracy of the product. Second, the oblique movement path of the inclined ejector block is carefully designed, so that it can effectively avoid other components during movement, reducing the interference with the surrounding structure. This design not only reduces the risk of mold damage, but also improves the stability and reliability of the equipment operation. By reducing interference, the mold demolding action is more smooth, further improving production efficiency. In addition, the oblique movement of the inclined ejector block can better adapt to the demolding needs of products with complex shapes, providing wider application for injection molding process. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the inclined ejection structure in an embodiment of the present application;

[0015] Figure 2 It is an exploded schematic diagram of the inclined ejection structure in an embodiment of the present application; Figure 1 ;

[0016] Figure 3 It is an exploded schematic diagram of the inclined ejection structure in an embodiment of the present application; Figure 2 ;

[0017] Figure 4 It is a connection structure schematic diagram of the inclined ejector block guide block in an embodiment of the present application;

[0018] Figure 5 It is an exploded schematic diagram of the inclined ejector block and the guide block in an embodiment of the present application;

[0019] Figure 6For Figure 3 enlarged view of A. DETAILED DESCRIPTION

[0020] Embodiments of the present application are described below in detail with reference to the accompanying drawings, in which like or similar elements or features are denoted by the same or similar reference signs, and the same or similar elements or features are denoted throughout the drawings by the same or similar reference signs.

[0021] In the description of the present application, it is necessary to point out that, for the orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0022] In addition, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first", "second" features defined can explicitly or implicitly include one or more of the features, and in the description of the present application, the meaning of "at least" is one or more, unless otherwise explicitly specified and limited.

[0023] In the present application, unless otherwise explicitly specified and limited, the terms "assembly", "connection", "connection" should be broadly understood, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or connected through an intermediate medium, or connected between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In the application, unless otherwise specified and limited, the "upper" or "lower" of the first feature with respect to the second feature can include the direct contact of the first and second features, or the contact of the first feature and the second feature through another feature between them. Moreover, the "upper", "lower" and "above" of the first feature with respect to the second feature include the first feature directly above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than the height of the second feature. The "upper", "lower" and "below" of the first feature with respect to the second feature include the first feature directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is lower than the height of the second feature.

[0025] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of this application, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, but should not be construed as limiting it.

[0026] like Figures 1 to 6 As shown, this application relates to a slanted ejector structure for injection molding equipment, aiming to improve the demolding efficiency and quality of injection molded products, while ensuring the stability and reliability of the structure. The specific technical solution is as follows:

[0027] The ejector structure of the injection molding equipment includes a base plate 1, an insert 2, a push block 3, a guide block 4, an ejector block 5, and a straight ejector block 6. The insert 2 is fixedly mounted on the base plate 1, and its two sides are symmetrical. The guide block 4 is fixedly mounted obliquely upward on the insert 2 to guide the movement direction of the ejector block 5, ensuring its stability and accuracy during demolding. The ejector block 5 is obliquely mounted against the side of the insert pin, and a guide groove 7 is provided on the side of the ejector block 5 that is in contact with the insert pin. The guide block 4 is located in the guide groove 7, and the precise movement of the ejector block 5 is achieved through the cooperation of the guide groove 7 and the guide block 4. The straight ejector block 6 is vertically mounted on the base plate 1, with its top connected to the top of the ejector block 5. The lower end of the straight ejector block 6 penetrates the base plate 1 and extends below its bottom. This design allows the straight ejector block 6 to provide stable support during demolding and also facilitates external equipment to provide upward force to the straight ejector block 6. The push block 3 is located on top of the insert 2 and the inclined ejector block 5, and is used to push the inclined ejector block 5 to perform a demolding action. The push block 3 can be moved upward by other power equipment, or it can be moved upward by the pushing force of the inclined ejector block 5.

[0028] In one embodiment, the guide groove 7 has an L-shaped cross-section, and the guide block 4 is provided with an L-shaped guide portion 8 that mates with the L-shaped guide groove 7. The inclined top block 5 is movably disposed on the side of the insert 2 from top to bottom in an insert manner. This design can further enhance the fitting accuracy between the guide block 4 and the guide groove 7, ensure the stability of the inclined top block 5 during movement, and prevent the inclined top block 5 from detaching from the guide block 4.

[0029] In one embodiment, the inclined ejector block 5 is provided with two guide grooves 7, which are respectively located on both sides of the inclined ejector block 5. This design ensures that the inclined ejector block 5 is stably guided on both sides, further improving the reliability of the demolding process. Two straight ejector blocks 6 are also provided on the base plate 1, which are respectively located below the guide grooves 7.

[0030] In one embodiment, the side of the insert 2 opposite to the inclined top block 5 is an inclined surface 9, and an installation groove 10 is provided on the inclined surface 9, in which the guide block 4 is fixedly installed. This design not only improves the installation stability of the guide block 4, but also optimizes the compactness of the overall structure.

[0031] In one embodiment, the guide block 4 is provided with screw holes 9, and the guide block 4 is fixed to the insert 2 by screws. This fixing method is not only firm and reliable, but also facilitates the installation and replacement of the guide block 4.

[0032] In one embodiment, the bottom of the inclined top block 5 is provided with an insertion block 11, and the top of the substrate 1 is provided with a slot 12 that mates with the insertion block 11. This design allows the inclined top block 5 to be quickly and accurately installed on the substrate 1, improving assembly efficiency.

[0033] In one embodiment, the inclined top block 5 has a striped groove 13 on its side opposite to the guide groove 7. This design allows for the creation of corresponding striped protrusions on the injection-molded product 18.

[0034] In one embodiment, the upper end of the straight abutment block 6 is provided with a limiting part 14, and the top of the base plate 1 is provided with a placement groove 15 for placing the limiting part 14. This design can effectively limit the movement range of the straight abutment block 6 and prevent the straight abutment block 6 from disengaging from the inclined abutment block 5 when the inclined abutment block 5 is reset.

[0035] In one embodiment, the top of the limiting part 14 is provided with a locking block 16, and the bottom of the inclined ejector block 5 is provided with a locking groove 17 that cooperates with the locking block 16. This design can further enhance the connection stability between the straight ejector block 6 and the inclined ejector block 5, and prevent displacement during demolding.

[0036] When the product is demolded, the straight ejector block 6 pushes the angled ejector block 5, causing the angled ejector block 5 to move obliquely upwards along the guide block 4. This oblique upward movement has significant advantages. First, the contact angle between the angled ejector block 5 and the product surface is more reasonable, allowing the product to be pushed out of the mold more smoothly, thus significantly improving the demolding effect. Compared with the traditional vertical demolding method, oblique demolding reduces surface scratches and deformation, ensuring the product's appearance quality and dimensional accuracy. Second, the oblique movement path of the angled ejector block 5 is carefully designed to effectively avoid other components during movement, reducing interference with surrounding structures. This design not only reduces the risk of mold damage but also improves the stability and reliability of equipment operation. By reducing interference, the demolding action is smoother, further improving production efficiency. In addition, the oblique movement of the angled ejector block 5 can better adapt to the demolding requirements of complex-shaped products, providing a wider range of applications for injection molding processes.

[0037] In the description of this specification, the terms "in one embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. The connection methods linked in the description of this specification have significant effects and practical utility.

[0038] Based on the above description of the structure and principles, those skilled in the art should understand that this application is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this application all fall within the protection scope of this application and should be defined by the claims.

Claims

1. A slanted ejector structure for an injection molding machine, characterized in that, include: The system comprises a substrate, an insert, a pusher block, a guide block, an angled top block, and a straight top block. The insert is fixedly mounted on the substrate. The guide block is fixedly mounted obliquely upward on the insert. The angled top block is obliquely attached to the side of the insert pin. A guide groove is provided on the side of the angled top block that is attached to the insert pin. The guide block is located in the guide groove. The straight top block is vertically mounted on the substrate. The top of the straight top block is connected to the top of the angled top block. The lower end of the straight top block penetrates the substrate and extends to the bottom of the substrate. The pusher block is located on top of the insert and the angled top block.

2. The inclined ejector structure of the injection molding equipment according to claim 1, characterized in that, The cross-section of the guide groove is L-shaped, and the guide block is provided with an L-shaped guide part that cooperates with the L-shaped guide groove.

3. The inclined ejector structure of the injection molding equipment according to claim 2, characterized in that, The inclined top block is provided with two guide grooves, which are respectively located on both sides of the inclined top block.

4. The inclined ejector structure of the injection molding equipment according to claim 3, characterized in that, The side of the insert opposite to the inclined top block is an inclined surface, and an installation groove is provided on the inclined surface. The guide block is fixedly installed in the installation groove.

5. The inclined ejector structure of the injection molding equipment according to claim 4, characterized in that, The guide block is provided with screw holes, and the guide block is fixed to the insert by screws.

6. The inclined ejector structure of the injection molding equipment according to claim 2, characterized in that, The bottom of the inclined top block is provided with an insertion block, and the top of the base plate is provided with a slot that mates with the insertion block.

7. The inclined ejector structure of the injection molding equipment according to claim 2, characterized in that, The inclined top block has striped grooves on the side opposite to the guide groove.

8. The inclined ejector structure of the injection molding equipment according to claim 1, characterized in that, The upper end of the straight block is provided with a limiting part, and the top of the substrate is provided with a placement groove for placing the limiting part.

9. The inclined ejector structure of the injection molding equipment according to claim 8, characterized in that, The top of the limiting part is provided with a locking block, and the bottom of the inclined top block is provided with a locking groove that cooperates with the locking block.