Sliding block vertical core-pulling injection mold

The design of the slider vertical core-pulling injection mold solves the problems of complex mold structure and mold collision risk in existing molds, realizes efficient and accurate vertical and horizontal core pulling, and improves the quality of products and production efficiency.

CN223395655UActive Publication Date: 2025-09-30XIAMEN DOOWELL PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202422658118.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-30
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

Existing injection molds have complex structures and large volumes when performing vertical and horizontal core pulling, and there is a risk of mold collision when the slider is closing the mold, which cannot meet high-precision manufacturing requirements.

Method used

A slider vertical core-pulling injection mold is used. By setting the slider vertical core-pulling assembly, inclined guide column, locking block, pressure block, limit block, guide block and T-shaped block and other structures, the synchronous core pulling of the slider is realized, and the mold structure and movement process are optimized.

Benefits of technology

It improves production efficiency and structural strength of products, reduces manufacturing costs and defective rate, ensures the appearance quality and assembly accuracy of products, and increases the service life of molds and the continuity of production processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molds, and discloses a sliding block vertical core-pulling injection mold which comprises a mold main body and four groups of sliding block vertical core-pulling components arranged in the mold main body, and products are arranged among the four groups of sliding block vertical core-pulling components; the sliding block vertical core-pulling assembly comprises a fixed seat, and a sliding seat is fixedly mounted at the top of the fixed seat; a locking block is arranged on the inclined face of the sliding seat, and an inclined guide column is arranged on the locking block. According to the utility model, the inclined guide pillar moves towards the mold opening direction, the slide block moves backwards under the action of the inclined guide pillar, and meanwhile, the T-shaped block applies lateral pulling force to the side-pulling slide block to enable the slide block to move towards the right side, so that the aim of simultaneously pulling the core by the two slide blocks is fulfilled; in the process, due to the synergistic effect of the inner sliding block and the outer sliding block insert, the synchronism of the core pulling action is ensured, the internal structure of a product is further optimized, the stress concentration phenomenon caused by asynchronous core pulling is reduced, the overall quality of the product is improved, and the service life of the product is prolonged.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a vertical core-pulling injection mold with a slider. Background Art

[0002] At present, the core pulling and demoulding of some injection molded products requires not only the horizontal core pulling of the slider, but also the preliminary vertical core pulling of the undercut hole position involving the slider in the product, that is, the vertical and horizontal core pulling of "first vertical and then horizontal". The existing technology adopts a combination of multiple independent slider core pulling mechanisms, which first pulls out the longitudinal core pulling slider related to the same position of the product and then pulls out the related horizontal core pulling slider. This method makes the mold structure complicated, bulky, and increases material and processing costs.

[0003] There is a product with a round hole on the outside and an undercut on the inside. The conventional method for the undercut is to add a slanted top for demoulding. Since the glue will be scraped off when the inclined top of this product is made, the product structure needs to be changed. There is also a risk of the slanted top and the slider colliding when the mold is closed when the corresponding slider is on the outside. Therefore, a slider secondary core pulling structure is developed.

[0004] Therefore, we provide a slider vertical core-pulling injection mold. Utility Model Content

[0005] The purpose of the utility model is to provide a vertical core-pulling injection mold with a slider to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slider vertical core-pulling injection mold, comprising a mold body, four groups of slider vertical core-pulling assemblies arranged inside the mold body, and products are arranged between the four groups of slider vertical core-pulling assemblies; the slider vertical core-pulling assembly includes a fixed seat, and a slide is fixedly installed on the top of the fixed seat; a locking block is provided on the inclined surface of the slide, and an inclined guide column is provided on the locking block; an outer slider insert is provided on the straight surface of the slide.

[0007] Preferably, pressure blocks are provided on both sides of the slide, and a limit block is provided on the outer side of the slide.

[0008] Preferably, the outer side of the product is provided with an outer undercut that is matched with the outer slider insert, and the inner side of the product is provided with an inner undercut.

[0009] Preferably, a pin groove is provided on the top of the outer slider insert, and the outer slider insert is mounted on the product through pins.

[0010] Preferably, a guide block is provided between the outer slider insert and the inner undercut provided on the product, and the top of the guide block is connected with a T-shaped block and an inner slider adapted to the T-shaped block.

[0011] Preferably, the outer slider insert is adapted and installed with the inner undercut provided on the product through a T-shaped block and an inner slider.

[0012] The utility model provides a vertical core-pulling injection mold with a slider. It has the following beneficial effects:

[0013] (1) The utility model provides an outer slider insert to achieve the function of undercutting the outer side of the product and fixing the T-shaped block. This design not only optimizes the structural strength of the product, but also improves production efficiency and reduces manufacturing costs. At the same time, the seamless connection between the outer slider insert and the inner undercut further ensures the appearance quality and assembly accuracy of the product, meeting the requirements of high-precision manufacturing.

[0014] (2) The present invention provides a guide block to accurately position the T-shaped block and guide the movement of the inner slider; the stability and accuracy of the guide block enable the inner slider to always maintain an accurate position during the movement process, ensuring the shape and size accuracy of the product during the molding process, and effectively avoiding the increase in the defective rate due to positioning deviation.

[0015] (3) The utility model moves in the mold opening direction through the inclined guide column, and the slider moves backward under the action of the inclined guide column. At the same time, the T-shaped block applies a pulling force to the side of the side-pulling slider to make the slider move to the right, so as to achieve the purpose of simultaneous core pulling of the two sliders; in this process, the coordinated action of the inner slider and the outer slider insert ensures the synchronization of the core pulling action, further optimizes the internal structure of the product, reduces the stress concentration phenomenon caused by asynchronous core pulling, and improves the overall quality and service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the vertical core pulling assembly of the slider of the utility model;

[0018] Figure 3 This is a top view of the vertical core pulling assembly of the slider of the utility model;

[0019] Figure 4 This is a bottom view of the vertical core-pulling assembly of the slider of the utility model.

[0020] In the figure: mold body 11, product 12, slider vertical core pulling assembly 2, fixed seat 21, slide 22, locking block 23, inclined guide column 24, pressure block 25, limit block 26, pin 27, outer slider insert 28, guide block 29, T-shaped block 210, inner slider 211, outer undercut 212, inner undercut 213. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0023] The preferred embodiment of the vertical core-pulling injection mold of the slider provided by the utility model is as follows: Figure 1-4 As shown: a slider vertical core-pulling injection mold, including a mold body 11 and four groups of slider vertical core-pulling assemblies 2 arranged inside the mold body 11. The mold body 11 is usually composed of the following main systems: Structural system: including an upper mold (cavity mold) and a lower mold (core mold), which are closely matched to form the cavity shape of the product, and contain guiding, positioning and fixing mechanisms to ensure that the mold components are correctly aligned and move stably; Opening and closing system: controls the opening and closing actions of the mold, usually composed of an ejection mechanism and an ejector mechanism; the ejection mechanism is used to eject the finished parts from the mold, and the ejector mechanism is used to lift the core rod or piston for demolding; Filling system: including a nozzle, a nozzle temperature control system, a molten material supply system and a pressure control system; design and control have an important impact on product quality and production efficiency. Other systems that may be included: automatic demolding system, injection molding machine interface system, transmission system, etc., to meet specific production needs; Auxiliary components: mold base, mold frame, mold core and part ejection device, etc., these components are usually made into universal types. The product 12 is arranged between the four groups of slider vertical core pulling assemblies 2; the slider vertical core pulling assembly 2 includes a fixed seat 21, and a slider 22 is fixedly installed on the top of the fixed seat 21; a locking block 23 is provided on the inclined surface of the slider 22, and an inclined guide column 24 is provided on the locking block 23; an outer slider insert 28 is provided on the straight surface of the slider 22; a pressure block 25 is provided on both sides of the slider 22, and a limit block 26 is provided on the outer side of the slider 22; the outer side of the product 12 is provided with an outer undercut that matches the outer slider insert 28 212, an inner undercut 213 is provided on the inner side of the product 12, a pin groove is provided on the top of the outer slider insert 28, and it is installed with the product 12 through the pin 27; a guide block 29 is provided between the outer slider insert 28 and the inner undercut 213 provided on the product 12, and the top of the guide block 29 is connected with a T-shaped block 210 and an inner slider 211 adapted to the T-shaped block 210, and the outer slider insert 28 and the inner undercut 213 provided on the product 12 are adapted and installed through the T-shaped block 210 and the inner slider 211.

[0024] Furthermore, the slide seat 22 secures the outer slider insert 28 and the T-shaped block 210. Furthermore, the ingenious design of the inclined guide post 24 allows the locking block 23 to remain firmly in place during the injection molding process, ensuring the precise molding of the product 12. Furthermore, the combination of the pressure block 25 and the limit block 26 effectively controls the slider's range of motion, extending the mold's service life and the product's stability. This series of sophisticated designs demonstrates a profound understanding and sophisticated application of mold manufacturing techniques.

[0025] Furthermore, the locking block 23 applies a locking force to the slider and secures the inclined guide post 24. Furthermore, the coordination between the inclined guide post 24 and the locking block 23 reduces friction and wear during the core pulling process, ensuring long-term stable operation of the mold. Furthermore, this design facilitates maintenance and component replacement, facilitating production, reducing costs, and improving overall economic efficiency.

[0026] It is further found that by setting the inclined guide column 24, a push and pull force is applied to the movement of the slider; at the same time, the shape and position design of the inclined guide column 24 enable it to bear the force evenly during the pushing and pulling process, ensuring smooth movement and reducing potential jamming and damage risks.

[0027] Furthermore, the pressure block 25 precisely positions and guides the slider; the stability of the pressure block 25 ensures the accuracy of the slider during movement, significantly improving the dimensional accuracy and surface quality of the product 12. This design also allows for easy mold maintenance, ensuring production efficiency while reducing downtime caused by equipment failure, further enhancing the continuity and reliability of the entire production process.

[0028] Furthermore, it is found that by providing a limit block 26 to limit the travel of the slider, precise control of the limit block 26 not only prevents damage caused by excessive displacement but also ensures the safety and stability of the product during the core pulling and injection molding process, further contributing to improved production efficiency and meeting market demand. Furthermore, the precise coordination between the various components during the assembly of product 12 further demonstrates the efficiency and precision of this mold design.

[0029] Furthermore, the provision of outer slider insert 28 serves to undercut the outer side of the product and secure T-shaped block 210. This design not only optimizes the structural strength of the product, but also improves production efficiency and reduces manufacturing costs. Furthermore, the seamless connection between outer slider insert 28 and inner undercut 213 further ensures the product's appearance quality and assembly accuracy, meeting the requirements of high-precision manufacturing.

[0030] It is further found that: by setting the guide block 29, the T-shaped block 210 is accurately positioned and the movement of the inner slider 211 is guided; the stability and precision of the guide block 29 enable the inner slider 211 to always maintain an accurate position during the movement, ensuring the shape and dimensional accuracy of the product during the molding process, and effectively avoiding the increase in the defective rate due to positioning deviation.

[0031] It is further found that by setting the T-shaped block 210, thrust and pull are applied to the vertical movement of the inner slider 211; this design not only improves the movement efficiency of the inner slider 211, but also further reduces the energy consumption and maintenance cost of the mold due to its close cooperation with the guide block 29.

[0032] It is further found that by providing the inner slider 211, the purpose of pulling out the core of the product is achieved.

[0033] During use, the mold opens, the inclined guide pin 24 moves in the mold opening direction, and the slider moves backward under the action of the inclined guide pin. Simultaneously, the T-shaped block applies a lateral pulling force to the side-pulling slider, causing it to move to the right, achieving simultaneous core pulling by both sliders. During this process, the synergistic effect of the inner slider 211 and the outer slider insert 28 ensures the synchronization of the core pulling action, further optimizing the internal structure of the product, reducing stress concentration caused by asynchronous core pulling, and improving the overall quality and service life of the product. This not only reflects the sophistication of the mold design, but also demonstrates the advanced manufacturing process.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A slider vertical core-pulling injection mold, comprising a mold body (11), four sets of slider vertical core-pulling assemblies (2) arranged inside the mold body (11), characterized in that: A product (12) is arranged between the four groups of slider vertical core-pulling assemblies (2); the slider vertical core-pulling assembly (2) includes a fixed seat (21), and a slider (22) is fixedly installed on the top of the fixed seat (21); a locking block (23) is provided on the inclined surface of the slider (22), and an inclined guide column (24) is provided on the locking block (23); an outer slider insert (28) is provided on the straight surface of the slider (22).

2. A vertical core-pulling injection mold for a slider according to claim 1, characterized in that: Pressing blocks (25) are provided on both sides of the slide seat (22), and a limiting block (26) is provided on the outer side of the slide seat (22).

3. The vertical core-pulling injection mold for a slider according to claim 1, characterized in that: The outer side of the product (12) is provided with an outer undercut (212) adapted to the outer slider insert (28), and the inner side of the product (12) is provided with an inner undercut (213).

4. The vertical core-pulling injection mold for a slider according to claim 1, characterized in that: A pin groove is provided on the top of the outer slider insert (28), and the outer slider insert (28) is mounted on the product (12) via a pin (27).

5. The vertical core-pulling injection mold for a slider according to claim 1, characterized in that: A guide block (29) is provided between the outer slider insert (28) and the inner undercut (213) provided on the product (12); the top of the guide block (29) is connected with a T-shaped block (210) and an inner slider (211) adapted to the T-shaped block (210).

6. The vertical core-pulling injection mold for a slider according to claim 1, characterized in that: The outer slider insert (28) and the inner undercut (213) provided on the product (12) are adapted and installed via a T-shaped block (210) and an inner slider (211).