Inclined ejection mold stripping structure of mold

By splitting the angled ejector block into an angled ejector block and an ejector block, and adopting a step-by-step demolding method, the problem of difficult demolding of arc-shaped products in traditional injection molds is solved, achieving efficient and reliable demolding effect.

CN224197236UActive Publication Date: 2026-05-05ZHONGSHAN 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
ZHONGSHAN JIRUI PRECISION MOLD TECH CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Traditional injection molds are prone to jamming, product damage, or incomplete demolding during the demolding process, especially for products with curved surfaces.

Method used

The inclined ejector block is split into an inclined ejector block and an ejector block. The forming position of the inclined ejector block is removed from the forming part of the product by horizontal movement. Then the inclined ejector block moves upward with the ejector block to avoid interference between the curved inclined surfaces of the inclined ejector block and the ejector block, thus achieving step-by-step demolding.

Benefits of technology

It improves demolding efficiency and quality, avoids interference problems during the demolding process, and ensures the integrity and safety of the product.

✦ Generated by Eureka AI based on patent content.

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Abstract

The inclined ejection mold stripping structure comprises an inclined ejection block and a push block, the push block comprises a transverse rod part and a vertical part, a containing groove for containing a forming part of a product is formed in the side face of the transverse rod part, and the inclined ejection block is arranged above the transverse rod part; a forming position for a product forming part is arranged on one side of the lower end part of the pitched roof block, and the pitched roof enables the forming position to be separated from a forming part of a product through horizontal movement and carries out ascending movement through the push block. According to the inclined ejection mold stripping structure, an inclined ejection push block of an injection molding machine is divided into an inclined ejection block and a push block, when a product is demolded, a forming position of the inclined ejection block is withdrawn from a forming part of the product through horizontal movement, and then the inclined ejection block ascends along with the push block, so that the product is demolded, and the forming position of the inclined ejection block and an arc-shaped inclined surface of the push block are respectively separated from the product; no interference is generated, and the demolding efficiency and the demolding quality are improved.
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Description

Technical Field

[0001] This application relates to the field of injection molding equipment technology, specifically to a slanted ejection structure for a mold. Background Technology

[0002] In traditional injection mold ejection structures, efficient and reliable demolding is difficult to achieve for products with complex shapes (such as curved surfaces). Especially when the product has a curved surface, the mold's angled ejector blocks conform to the curved slope and molding part of the product. During demolding, the molding part of the angled ejector blocks and the curved slope that conforms to the product interfere with each other, easily leading to problems such as jamming, product damage, or incomplete demolding. Utility Model Content

[0003] To address the problem of difficult demolding of the inclined ejector blocks in existing injection molding machines, this application provides an inclined ejector structure for a mold. The specific technical solution of this application is as follows:

[0004] A slanted ejector structure for a mold includes a slanted ejector block and a pusher block. The pusher block includes a horizontal bar portion and a vertical portion. The bottom of the horizontal bar portion of the pusher block is provided with an arc-shaped slant surface that conforms to the arc surface of the product. The side of the horizontal bar portion is provided with a placement groove for placing the forming part of the product. The pusher block can move upward along the forming part of the product through the placement groove. The slanted ejector block is located above the horizontal bar portion. One side of the lower end of the slanted ejector block is provided with a forming position for the forming part of the product. The slanted ejector block moves horizontally to disengage the forming position from the forming part of the product and moves upward through the pusher block.

[0005] Furthermore, a protrusion is provided in the forming position, a first groove is provided above the protrusion, and a second groove is provided below the protrusion.

[0006] Furthermore, the two sides of the protrusion extend upward along the two sides of the opening of the first groove to form a raised strip.

[0007] Furthermore, the first groove is composed of an upper inclined surface, a lower inclined surface, a left plane, a right plane, and an inner plane.

[0008] Furthermore, the inner bottom surface of the second groove is an arc surface, and the top two sides of the second groove extend upward to form convex grooves.

[0009] Furthermore, the top surface of the crossbar is a plane, and the bottom surface of the inclined top block is a plane.

[0010] Furthermore, the bottom of the crossbar is provided with a side groove for fitting against the edge of the product.

[0011] Furthermore, a first circular hole is provided at the top of the crossbar.

[0012] Furthermore, the inclined ejector structure includes a connecting block, the bottom of which is provided with a slot and the top of which is provided with a second circular hole, and the top of the inclined ejector block is provided with a locking block that cooperates with the slot.

[0013] Compared with existing technologies, the beneficial effects of this application are as follows: The inclined ejector structure described in this application splits the inclined ejector block of the injection molding machine into an inclined ejector block and an ejector block. When the product is demolded, the molding position of the inclined ejector block exits from the molding part of the product by horizontal movement. Then the inclined ejector block moves upward with the ejector block to demold the product. The molding position of the inclined ejector block and the arc-shaped inclined surface of the ejector block separate from the product respectively without interference, thereby improving demolding efficiency and demolding quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the inclined ejector structure in one embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the ejection process of the inclined ejection structure in one embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the structure of the inclined top block and the push block in one embodiment of this application;

[0017] Figure 4 This is an exploded view of the inclined block and push block in one embodiment of this application. Figure 1 ;

[0018] Figure 5 This is an exploded view of the inclined block and push block in one embodiment of this application. Figure 2 . Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0020] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" or "second" to define a feature may explicitly or implicitly include one or more of that feature, and in the description of this application, "at least" means one or more, unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In the application, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "below" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicating that the first feature is at a lower horizontal level than the second feature.

[0024] 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.

[0025] like Figures 1 to 5 As shown, this application provides a slanted ejector structure for a mold, designed to improve the demolding efficiency and quality of the injection-molded product 5, while avoiding potential interference problems during demolding. The specific technical solution is as follows:

[0026] The mold's inclined ejection structure includes an inclined ejector block 1 and a pusher block 2. The pusher block 2 consists of a horizontal bar portion 3 and a vertical portion 4. This structural design allows the inclined ejector block 1 to move flexibly within the mold. The bottom of the horizontal bar portion 3 of the pusher block 2 is provided with an arc-shaped inclined surface 6 that conforms to the arc surface of the product 5. This design ensures that when the inclined ejector block 1 detaches from the product 5, the pusher block 2 is in close contact with the surface of the product 5, avoiding displacement of the product 5 due to shape mismatch and affecting demolding efficiency. The side of the horizontal bar portion 3 is provided with a placement groove 27 for placing the forming part 28 of the product 5. The pusher block 2 can move upward along the forming part 28 of the product 5 through the placement groove 27. This design allows the pusher block 2 to detach precisely from the product 5.

[0027] The inclined ejector block 1 is positioned above the crossbar portion 3, and a forming position 7 for the forming portion 28 of the product 5 is provided on one side of the lower end of the inclined ejector block 1. The inclined ejector block 1 moves horizontally to disengage the forming position 7 from the forming portion 28 of the product 5, and then the ejector block 2 moves upward to complete the demolding. This step-by-step demolding design can effectively avoid interference between the inclined ejector block 1 and the product 5 during the demolding process, improving demolding efficiency and quality.

[0028] In one embodiment, the molding position 7 is provided with a protrusion 8, a first groove 9 is provided above the protrusion 8, and a second groove 10 is provided below the protrusion 8. This structural design can better adapt to the complex shape of the product 5 and ensure a tight fit between the molding position 7 and the molding part 28 of the product 5.

[0029] In one embodiment, the two sides of the protrusion 8 extend upward along both sides of the opening of the first groove 9 to form a raised strip 11. This design further enhances the structural stability of the molding position 7 and improves the fit with the molding part 28 of the product 5.

[0030] In one embodiment, the first groove 9 is composed of an upper inclined surface 12, a lower inclined surface 13, a left plane 14, a right plane 15, and an inner plane 16. This multi-faceted design can better adapt to the molding requirements of products 5 with different shapes, improving the versatility and flexibility of the mold.

[0031] In one embodiment, the inner bottom surface 17 of the second groove 10 is curved, and the top two sides extend upward to form protrusions 18. This design can better adapt to the curved structure of the product 5 and ensure the smoothness of the demolding process.

[0032] In one embodiment, the top surface 19 of the crossbar portion 3 is a plane, and the bottom surface 20 of the inclined ejector block 1 is a plane. This design allows for stable contact between the inclined ejector block 1 and the crossbar portion 3, ensuring the smoothness of the demolding process.

[0033] In one embodiment, the bottom of the crossbar 3 is provided with a side groove 21 for fitting against the edge of the product 5. This design can further improve the fit between the push block 2 and the product 5, ensuring a smooth demolding process.

[0034] In one embodiment, the top of the crossbar 3 is provided with a first circular hole 22. This design facilitates the installation and fixation of the push block 2, and improves the stability of the structure.

[0035] In one embodiment, the inclined ejector structure further includes a connecting block 23. The connecting block has a groove 24 at its bottom and a second circular hole 25 at its top. The top of the inclined ejector block 1 has a locking block 26 that mates with the groove. This design facilitates the quick installation and disassembly of the inclined ejector block 1 and the connecting block, improving the ease of mold maintenance.

[0036] The inclined ejector structure described in this application splits the inclined ejector block 2 of the injection molding machine into an inclined ejector block 1 and an ejector block 2. When the product 5 is demolded, the molding position 7 of the inclined ejector block 1 exits from the molding part 28 of the product 5 by horizontal movement. Then, the inclined ejector block 1 moves upward with the ejector block 2 to demold the product 5. The molding position 7 of the inclined ejector block 1 and the arc-shaped inclined surface 6 of the ejector block 2 are separated from the product 5 respectively, without interference, thus improving demolding efficiency and demolding quality.

[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 a mold, characterized in that, include: The push block includes a sloping top block and a push block. The push block has a horizontal bar and a vertical bar. The bottom of the horizontal bar of the push block is provided with an arc-shaped sloping surface that fits the arc surface of the product. The side of the horizontal bar is provided with a placement groove for placing the forming part of the product. The push block can move upward along the forming part of the product through the placement groove. The sloping top block is located above the horizontal bar. One side of the lower end of the sloping top block is provided with a forming position for the forming part of the product. The sloping top block moves horizontally to disengage the forming position from the forming part of the product and moves upward through the push block.

2. The inclined ejection structure of the mold according to claim 1, characterized in that, The forming position is provided with a protrusion, a first groove is provided above the protrusion, and a second groove is provided below the protrusion.

3. The inclined ejection structure of the mold according to claim 2, characterized in that, The two sides of the protrusion extend upward along the two sides of the opening of the first groove to form a raised strip.

4. The inclined ejection structure of the mold according to claim 2, characterized in that, The first groove is composed of an upper inclined surface, a lower inclined surface, a left plane, a right plane, and an inner plane.

5. The inclined ejection structure of the mold according to claim 2, characterized in that, The inner bottom surface of the second groove is an arc surface, and the top two sides of the second groove extend upward to form convex grooves.

6. The inclined ejection structure of the mold according to claim 1, characterized in that, The top surface of the crossbar is a plane, and the bottom surface of the inclined top block is a plane.

7. The inclined ejection structure of the mold according to claim 1, characterized in that, The bottom of the crossbar is provided with a side groove for fitting against the edge of the product.

8. The inclined ejection structure of the mold according to claim 1, characterized in that, The top of the crossbar is provided with a first circular hole.

9. The inclined ejection structure of the mold according to claim 1, characterized in that, The inclined ejector structure includes a connecting block, the bottom of which is provided with a slot and the top of which is provided with a second circular hole, and the top of the inclined ejector block is provided with a locking block that cooperates with the slot.