Oblique ejection mechanism of mold

By using an inclined ejection mechanism, which incorporates an inclined cylinder, ejection column, and sealing surface, the problem of tearing when ejecting inclined products from injection molds is solved, thereby improving product quality and yield.

CN223877464UActive Publication Date: 2026-02-06HELLA BHAPSANHEAUTOMOTIVE LIGHTING CO LTD
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Patent Information

Application Number
CN202520280404.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-21
Publication Date
2026-02-06
Estimated Expiration
2035-02-21

AI Technical Summary

Technical Problem

Existing injection molds are prone to product tearing when ejecting at an angle or when products are placed at an angle, which affects the yield rate.

Method used

An inclined ejection mechanism is adopted, which uses an inclined setting of hydraulic cylinder, ejection column and sealing surface to demold along the inclined surface of the product, and combines with hydraulic circuit balancer to achieve unified control.

Benefits of technology

This prevents product damage, improves yield, and ensures product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223877464U_ABST
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Abstract

The utility model discloses an oblique ejection mechanism of a mold, which comprises a mold main body, and at least one groove is formed in the top of the mold main body; the parting block is arranged in the groove, the parting block is provided with a glue sealing surface, and the glue sealing surface is obliquely arranged; the at least one oil cylinder is mounted in the mold main body through a mounting piece; one end of the ejection column is connected with the oil cylinder, the other end of the ejection column penetrates through the mold body and is connected with the bottom of the parting block, the axis of the oil cylinder coincides with the axis of the ejection column, and a preset included angle exists between the axis of the oil cylinder and the axis of the ejection column and the central axis of the mold body in the vertical direction. Compared with a traditional vertical ejection mode, the oil cylinder and the ejection column are obliquely arranged, demolding is conducted in the inclined plane direction of the product in the ejection process, the product is more smoothly ejected in the inclined direction, the situation that the product is pulled is avoided, the product quality is guaranteed, and the yield is increased.
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Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, especially a mould's oblique ejection mechanism. BACKGROUND

[0002] Injection molding is also called injection molding, which is a kind of injection molding method. The advantages of injection molding method are fast production speed, high efficiency, automatic operation, various colors and shapes, simple to complex shape, accurate product size, easy to update product, complex product forming, injection molding is suitable for mass production and complex product forming processing field.

[0003] In the prior art, the mold is normally ejected vertically by the injection molding machine, but for some products with an inclination angle or inclined placement, if the mold is still manufactured in this way, the product is prone to be damaged during ejection. In addition, if the mold parting plug-in surface (glue sealing surface) is still vertical, the product will also be damaged, affecting the product quality and ultimately leading to low yield. To solve this problem, the present application provides a kind of oblique ejection mechanism of mold. UTILITY MODEL CONTENT

[0004] Therefore, in order to solve the problems in the prior art, the present application provides an oblique ejection mechanism of mold, which comprises a mold main body, at least one groove is formed in the top of the mold main body;

[0005] A parting block is arranged in the groove, and the parting block is provided with a glue sealing surface which is inclined;

[0006] At least one oil cylinder is installed in the interior of the mold main body through a mounting piece;

[0007] An ejection column is connected to one end of the oil cylinder and the other end of the parting block, the axis of the oil cylinder and the ejection column coincide, and there is a preset angle between the axis of the oil cylinder and the ejection column and the vertical central axis of the mold main body.

[0008] Further, the number of grooves is two, the two grooves are symmetrically arranged, and the number of parting blocks is also two and arranged in the two grooves respectively.

[0009] Further, the inner wall of the groove away from the central axis of the mold main body is inclined towards the direction away from the central axis of the mold main body, and the inclination angle is consistent with the preset angle of the oil cylinder and the ejection column.

[0010] Further, the preset angle is 5°-15°.

[0011] Further, the number of oil cylinders is six, and each parting block is provided with three oil cylinders.

[0012] Further, the upper end of the glue sealing surface is arranged to be inclined away from the central axis of the mold body, and the inclination angle of the glue sealing surface is 7-17 degrees.

[0013] Further, the oil inlet and the oil outlet are further included, the oil inlet ends and the oil outlet ends of the three oil cylinders on one side are connected in series through pipelines and then connected to the oil inlet and the oil outlet respectively, and an oil path equalizer is arranged in the pipelines.

[0014] Beneficial effects: the oil cylinder, the ejection column and the glue sealing surface are arranged to be inclined, compared with the traditional vertical ejection mode, the demolding is carried out along the inclined surface direction of the product itself during the ejection, so that the product is more smoothly ejected in the inclined direction, the product is prevented from being damaged, the quality of the product is ensured, and the yield is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0016] Figure 1 It is a three-dimensional structure schematic view of the inclined ejection mechanism of the mold of the present application.

[0017] Figure 2 It is a sectional structure schematic view of the inclined ejection mechanism of the mold of the present application.

[0018] Figure 3 It is the present application Figure 2 It is an enlarged view of A in the present application.

[0019] In the figure: 1, mold body; 11, groove; 2, parting block; 21, glue sealing surface; 3, oil cylinder; 4, ejection column; 5, mounting; 6, oil path equalizer; 7, oil inlet; 8, oil outlet.

[0020] The implementation, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three schemes, for example, A and / or B includes A technical solution, B technical solution, and A and B simultaneously meet the technical solution; in addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0024] As shown in Figures 1-3 The embodiment of the present application provides a diagonal ejection mechanism of a mold, which comprises: a mold body 1, at least one groove 11 is formed in the top of the mold body 1;

[0025] A parting block 2 is arranged in the groove 11;

[0026] At least one oil cylinder 3 is installed in the inside of the mold body 1 through a mounting piece 5;

[0027] An ejection column 4 is connected with the oil cylinder 3 at one end and connected with the parting block 2 at the other end, the axis of the oil cylinder 3 and the ejection column 4 coincide, and there is a preset angle between the axis of the oil cylinder 3 and the ejection column 4 and the vertical central axis a of the mold body 1.

[0028] In the embodiment, the mold body 1 is the fixed mold part of the whole mold, the number of the grooves 11 is two, the two grooves 11 are oppositely arranged, and the two grooves 11 are symmetrically arranged about the central axis a, the number of the parting blocks 2 is two, and the two parting blocks 2 are arranged in the two grooves 11 respectively;

[0029] The preset included angle can be preset according to the inclination angle and direction of the inclined surface of the product, and optionally, the preset included angle is 5°-15°.

[0030] In work, the oil cylinder 3 drives the ejection column 4 to extend in the inclined direction, at this time, force is applied to the parting block 2, so that the parting block 2 moves along the inclined direction of the oil cylinder 3 and the ejection column 4, and when the parting block 2 is pushed out of the groove 11, demolding is realized.

[0031] In the present application, the oil cylinder 3 and the ejection column 4 are inclined, compared with the traditional vertical ejection mode, the demolding is carried out along the inclined surface direction of the product itself during the ejection process, avoiding the situation that the product is pulled and damaged, ensuring the quality of the product and improving the yield.

[0032] In one embodiment, the entire inner wall of the groove 11 away from the axis a of the mold body 1 is inclined towards the direction away from the axis a of the mold body 1, and the inclination angle is consistent with the preset angle of the oil cylinder 3 and the ejection column 4.

[0033] In the present embodiment, by setting the inclination angle of the inner wall of the groove 11 away from the axis a of the mold body 1 to be consistent with the preset angle of the oil cylinder 3 and the ejection column 4, the oil cylinder 3 and the ejection column 4 are more smooth during the inclined ejection process, avoiding the situation that the product is damaged due to the limitation of the mold body 1.

[0034] In one embodiment, the number of oil cylinders 3 is six, and three oil cylinders 3 are arranged corresponding to each parting block 2.

[0035] In the present embodiment, the six oil cylinders 3 are arranged in groups of three, and are symmetrically arranged with the parting block 2. By arranging multiple oil cylinders 3, the phenomenon that the product cannot be normally ejected due to excessive holding force during inclined ejection can be prevented.

[0036] In one embodiment, the parting block 2 is provided with a glue sealing surface 21, and the upper end of the glue sealing surface 21 is inclined towards the direction away from the axis a of the mold body 1.

[0037] In the present embodiment, the glue sealing surface 21 is inclined, which is also to adapt to the inclined surface of the product, so that the product is more smoothly ejected in the inclined direction, and the product is not pulled and damaged.

[0038] The inclination angle of the glue sealing surface 21 can be preset according to the product, and optionally, the inclination angle of the glue sealing surface 21 is 7°-17°.

[0039] In one embodiment, it further includes an oil inlet 7 and an oil outlet 8, the oil inlet ends and the oil outlet ends of the three oil cylinders 3 on one side are respectively connected through pipelines and then connected with the oil inlet 7 and the oil outlet 8 respectively, and an oil path balancer 6 is arranged in the pipeline.

[0040] In the embodiment, by connecting the oil inlet end and the oil outlet end of the three oil cylinders 3 on one side in series through pipelines respectively and then connecting with the oil inlet 7 and the oil outlet 8 respectively, the multiple oil cylinders 3 on the same side can be controlled uniformly, and in addition, the oil path balancer 6 is arranged in the pipeline of the oil cylinder 3, so that the ejection balance of the product can be realized, and the product will not be damaged due to unbalance when the product is ejected, and the yield is reduced.

[0041] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A diagonal ejection mechanism of a mold characterized by comprising: The utility model relates to a mold, which comprises: a mold body with at least one groove on the top; a split block arranged in the groove, the split block being provided with a glue sealing surface, and the glue sealing surface being arranged obliquely; at least one oil cylinder mounted in the mold body through a mounting piece; an ejection column connected to one end of the oil cylinder and the other end of the split block, the axis of the oil cylinder coinciding with the axis of the ejection column, and a preset angle existing between the axis of the ejection column and the vertical central axis of the mold body.

2. The diagonal ejection mechanism of a mold according to claim 1, wherein The number of grooves is two, and the two grooves are arranged symmetrically, and the number of split blocks is also two and arranged in the two grooves respectively.

3. The diagonal ejection mechanism of a mold according to claim 2, wherein The inner wall of the groove away from the central axis of the mold body is inclined toward the direction away from the central axis of the mold body, and the inclination angle is consistent with the preset angle of the oil cylinder and the ejection column.

4. The diagonal ejection mechanism of a mold according to claim 3, wherein The preset angle is 5°-15°.

5. The diagonal ejection mechanism of a mold according to claim 2, wherein The number of oil cylinders is six, and each split block is provided with three oil cylinders.

6. The diagonal ejection mechanism of a mold according to claim 1, wherein The upper end of the glue sealing surface is arranged obliquely toward the direction away from the central axis of the mold body, and the inclination angle of the glue sealing surface is 7°-17°.

7. The diagonal ejection mechanism of a mold according to claim 5, wherein The utility model also comprises an oil inlet and an oil outlet, and the oil inlet end and the oil outlet end of three oil cylinders on one side are connected to the oil inlet and the oil outlet respectively through pipelines in series, and an oil path balancer is arranged in the pipeline.