Novel structure for solving problem of mold sticking caused by deep ribs in front mold of product
By introducing front mold spring blocks, inclined rail grooves, and elastic components into the mold, the problem of adhesion between deep ribs and front mold cores is solved, achieving efficient demolding, avoiding product damage, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional molds have difficulty overcoming the adhesion between the deep ribs and the front mold core during demolding, resulting in demolding difficulties and affecting production efficiency and product quality.
The design employs a synergistic approach involving front mold spring blocks, inclined rails, rear mold pull clips, and elastic components. Through the elastic force of the elastic components, the deep ribs gradually detach from the front mold core, ensuring smooth demolding.
It improves demolding efficiency, reduces product damage caused by forced demolding, and ensures product integrity and appearance quality.
Smart Images
Figure CN223982077U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mold technology, specifically a novel structure for solving the problem of products sticking to the mold with deep ribs in the front mold. Background Technology
[0002] In existing injection mold structures, there are typically main components such as the front mold core, rear mold core, and ejection mechanism. The front mold core is used to mold part of the product's surface, while the rear mold core works in conjunction with the front mold core to form the complete shape of the product. After injection molding, the ejection mechanism pushes the molded product out of the mold. However, when the product has a deep rib structure in the front mold section, traditional mold structures often struggle to demold smoothly.
[0003] However, due to its greater depth and relatively larger contact area with the mold core, the deep rib structure generates significant adhesion between the product and the mold core during injection molding and cooling. Simultaneously, the shrinkage stress within the deep ribs also causes them to adhere tightly to the mold core. Furthermore, traditional ejection methods are ineffective for products with this unique structure, failing to overcome the adhesion between the deep ribs and the mold core. This results in difficulty in demolding, severely impacting production efficiency and product quality, and may even cause product damage, increasing production costs.
[0004] Therefore, it is necessary to provide a novel structure to solve the problem of products sticking to the mold with deep ribs in the front mold.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content
[0006] The purpose of this utility model is to provide a novel structure that solves the problem of deep ribs sticking to the mold in the front mold of a product, thereby addressing the problems mentioned in the background art.
[0007] The technical solution adopted by this application to solve its technical problem is:
[0008] A novel structure for solving the problem of products sticking to the mold with deep ribs in the front mold includes a front mold core and a rear mold core, wherein the front mold core and the rear mold core have a mold closing movement, and a mounting plate is provided on the outer side of the front mold core;
[0009] The front mold spring block has an inclined rail groove inside the front mold core. The front mold spring block is slidably connected in the inclined rail groove through an elastic component. A rear mold pull buckle is fixedly installed on the inner side of the rear mold core and below the front mold spring block. The rear mold pull buckle is engaged with the bottom limit of the front mold spring block. The elastic component is fixedly installed inside the mounting plate.
[0010] Preferably, the elastic component includes a limiting screw and a spring. The top surface of the mounting plate has a sliding hole, and the bottom surface of the mounting plate has a stepped hole on the axis of the sliding hole. The side wall of the limiting screw is slidably inserted into the sliding hole and the stepped hole, and the end of the limiting screw is engaged with the stepped hole. The front mold spring block has a guide hole inside, and the top end of the limiting screw is threadedly connected to the bottom of the guide hole. The spring is sleeved on the side wall of the limiting screw and placed in the guide hole.
[0011] Preferably, when the front mold core and the rear mold core are closed, one end of the spring abuts against the relief groove surface opened on the bottom surface of the mounting plate, and the other end of the spring abuts against the inner bottom surface of the guide hole, and the spring is compressed in the guide hole.
[0012] Preferably, the inclined rail groove is inclinedly formed in the front mold core, and the front mold spring block is inclinedly arranged in the front mold core along with the inclined rail groove.
[0013] Preferably, the cavity formed after the front mold core, rear mold core, front mold spring block, and rear mold pull buckle are closed is the molding cavity of the injection molded product.
[0014] The beneficial effects of this application are:
[0015] Through the coordinated action of the front mold spring block, the inclined rail groove, the rear mold pull buckle, and the elastic components, the deep ribs on the product can be gradually separated from the adhesion state with the front mold core in an orderly manner during the mold opening process. The rear mold pull buckle first restricts the movement of the front mold spring block, causing the product to initially separate. Then, the front mold spring block continues to move under the guidance of the inclined rail and the power of the spring, ensuring that the deep ribs are completely demolded. This greatly improves the demolding efficiency, reduces the production downtime caused by demolding difficulties, avoids damage to the deep rib structure of the product caused by forced demolding or poor demolding, and effectively ensures the integrity and appearance quality of the product.
[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description
[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.
[0018] In the attached diagram:
[0019] Figure 1 This is a cross-sectional schematic diagram of a novel structure for solving the problem of product sticking to the mold in the front mold with deep ribs;
[0020] Figure 2 This is a schematic diagram of the injection-molded product structure of this utility model.
[0021] The following are the labeling elements in the figure:
[0022] 1. Injection molded products; 11. Deep ribs; 2. Front mold spring block; 3. Rear mold pull buckle; 4. Front mold core; 5. Rear mold core; 6. Mounting plate; 7. Limit screw; 8. Spring. Detailed Implementation
[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.
[0025] Please see Figure 1-2 The embodiments provided by this utility model are as follows:
[0026] A novel structure for solving the problem of product sticking to the mold in the front mold with deep ribs includes a front mold core 4 and a rear mold core 5. The front mold core 4 and the rear mold core 5 have a mold closing movement, and the mold closing and opening movements are realized by a mold closing mechanism. When the mold is closed, the two are tightly fitted to form a closed injection molding cavity; when the mold is opened, the two separate to prepare for the removal of the injection molded product 1. The outer side of the front mold core 4 is provided with a mounting plate 6, which supports and mounts elastic components, providing an elastic power source and mounting base for the movement of the front mold spring block 2.
[0027] The front mold spring block 2 and the front mold core 4 have inclined rail grooves inside. The front mold spring block 2 is slidably connected in the inclined rail grooves through elastic components. Specifically, the inclined rail grooves are inclinedly opened in the front mold core 4, and the front mold spring block 2 is inclinedly set in the front mold core 4 along with the inclined rail grooves. The rear mold pull buckle 3 is fixedly installed on the inner side of the rear mold core 5 and below the front mold spring block 2. The rear mold pull buckle 3 is engaged with the bottom limit of the front mold spring block 2.
[0028] The front mold spring block 2 is installed in the inclined rail groove. When the mold is closed, the front mold spring block 2 is in the initial position in the inclined rail groove, and the elastic component is compressed and stores energy. During the mold opening process, due to the constraint of the rear mold pull buckle 3, it will make a compound movement downward and to the right along the direction of the inclined rail groove. When it moves to the right for a certain distance and breaks away from the limit of the rear mold pull buckle 3, it continues to move under the action of the spring force of the spring 8.
[0029] The elastic component is fixedly installed inside the mounting plate 6. During the mold opening process, it drives the injection molded product 1 to move, so that the deep ribs 11 on the injection molded product 1 gradually detach from the state of being stuck to the front mold core 4, thus preventing the deep ribs 11 from sticking to the mold.
[0030] The elastic component includes a limiting screw 7 and a spring 8. The top surface of the mounting plate 6 has a sliding hole, and the bottom surface of the mounting plate 6 has a stepped hole on the axis of the sliding hole. The side wall of the limiting screw 7 is slidably inserted into the sliding hole and the stepped hole, and the end of the limiting screw 7 is engaged with the stepped hole. The front mold spring block 2 has a guide hole inside, and the top of the limiting screw 7 is threadedly connected to the bottom of the guide hole. The spring 8 is sleeved on the side wall of the limiting screw 7 and placed in the guide hole.
[0031] During mold closing, the movement of the front mold spring block 2 compresses the spring 8 within the guide hole, and the limiting screw 7 slides within the sliding hole and stepped hole, with its end engaging with the stepped hole to limit the sliding range. When the mold opens, as the external constraints change, the spring 8 releases energy, pushing the front mold spring block 2 along the inclined rail groove, and the limiting screw 7 continues to slide within the hole, limiting the stroke.
[0032] It is worth noting that when the front mold core 4 and the rear mold core 5 are closed, one end of the spring 8 abuts against the relief groove surface opened on the bottom surface of the mounting plate 6, and the other end of the spring 8 abuts against the inner bottom surface of the guide hole. The spring 8 is compressed in the guide hole. When the mold is closed, the movement of the front mold spring block 2 causes the spring 8 to be squeezed in the guide hole, with one end abutting against the relief groove of the mounting plate 6 and the other end abutting against the bottom surface of the guide hole. The external force of mold closing is converted into the elastic potential energy of the spring 8 and stored, which is used to reserve power for the movement of the front mold spring block 2 when the mold is opened.
[0033] The cavity formed after the front mold core 4, rear mold core 5, front mold spring block 2, and rear mold pull buckle 3 are closed is the molding cavity of injection molded product 1. After the mold closing action is completed, the components cooperate with each other to form a closed cavity. The injection molding equipment injects molten plastic into the cavity. Under suitable temperature and pressure conditions, the plastic cools and solidifies to form the required injection molded product 1.
[0034] The working principle is as follows: When the mold is closed, the front mold core 4 and the rear mold core 5 are closed, and the spring 8 is compressed and stores energy to form an injection molding cavity, into which plastic is injected and molded. When the mold is opened, the rear mold pull buckle 3 first restricts the front mold spring block 2, causing it to drive the injection molded product 1 to detach from the adhesion point with the front mold core 4 and move along the inclined rail groove. After detaching from the pull buckle restriction, the spring 8 releases energy, pushing the front mold spring block 2 to continue moving, so that the deep ribs 11 of the product completely detach from the front mold core 4, solving the sticking problem.
[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A new structure to solve the sticking of products in the front mold with deep bones, characterized by: It comprises a front die core (4) and a rear die core (5), the front die core (4) is provided with a mounting plate (6) on the outside, and the front die core (4) and the rear die core (5) are clamped together; A front die elastic block (2) is slidably connected in a slanted rail groove in the front die core (4) through an elastic assembly, a rear die puller (3) is fixedly installed on the inside of the rear die core (5) below the front die elastic block (2), the rear die puller (3) is limitingly connected with the bottom of the front die elastic block (2), and the elastic assembly is fixedly installed in the inside of the mounting plate (6).
2. The new structure of solving the product sticking to the front mold with deep ribs according to claim 1, characterized in that: The elastic assembly comprises a limiting screw (7) and a spring (8), a sliding hole is formed in the top surface of the mounting plate (6), a stepped hole is formed in the bottom surface of the mounting plate (6) on the axis of the sliding hole, the side wall of the limiting screw (7) is slidably inserted into the inside of the sliding hole and the stepped hole, the end of the limiting screw (7) is connected with the stepped hole, a guide hole is formed in the inside of the front die elastic block (2), the top end of the limiting screw (7) is threadedly connected with the bottom of the guide hole, and the spring (8) is sleeved on the side wall of the limiting screw (7) and is arranged in the guide hole.
3. The new structure of solving the product sticking to the front mold with deep ribs according to claim 2, characterized in that: In the clamped state of the front die core (4) and the rear die core (5), one end of the spring (8) abuts against the surface of the clearance groove formed in the bottom surface of the mounting plate (6), the other end of the spring (8) abuts against the inner bottom surface of the guide hole, and the spring (8) is compressed in the guide hole.
4. The new structure of solving the product sticking in the front mold with deep ribs according to claim 1, characterized in that: The slanted rail groove is obliquely formed in the front die core (4), and the front die elastic block (2) is obliquely arranged in the front die core (4) along the slanted rail groove.
5. The new structure of claim 1, wherein: The cavity formed after the front die core (4), the rear die core (5), the front die elastic block (2) and the rear die puller (3) are clamped together is a forming cavity of the injection molded product (1).