Injection mold
Through the circulation casting system of dual-cavity injection molds and the lifting plate thimble mold release method, the problems of uneven flow of raw materials and low production efficiency in traditional molds are solved, and high-quality injection molded parts are achieved efficiently.
Patent Information
- Application Number
- CN202422398134.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-29
AI Technical Summary
When traditional injection molds face large or complex injection molded parts, there are problems such as uneven flow of raw materials, slow filling speed, long molding cycle and unstable product quality, especially when multiple injection molded parts are produced, they are inefficient.
The dual-cavity design is adopted, combining the circulation casting system and the mold release method of lifting plate and thimble. The casting pipe and shunt pipe are uniformly distributed, and the heating and cooling pipes are optimized to achieve rapid mold release with the driving components.
Improve the production efficiency of injection molded parts, ensure the consistency and integrity of product quality, and reduce the risk of internal defects and damage during mold release.
Smart Images
Figure CN223131271U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of injection molds, and particularly relates to an injection mold. Background Art
[0002] In the injection molding technology, the design and manufacture of molds are directly related to the quality and production efficiency of injection molded parts. Traditional injection molds mostly adopt a single cavity design, and raw materials are injected into the cavity through a single pouring gate. Although this method is simple, when facing large or complex-structured injection molded parts, there are often problems such as uneven raw material flow, slow filling speed, long molding cycle, and unstable product quality. Especially for the scenario where multiple identical or similar injection molded parts need to be produced simultaneously, the production efficiency of a single cavity mold is low and cannot meet the requirements of large-scale production. Summary of the Invention
[0003] The purpose of the utility model is to provide an injection mold, aiming to solve the above problems.
[0004] To achieve the above purpose, the utility model provides an injection mold for injecting raw materials to form injection molded parts, including a movable moving template and a stationary fixed template. A cavity is formed between the moving template and the fixed template. A pouring gate is arranged at the upper end of the moving template, and the pouring gate is communicated with the cavity. It also includes a pouring pipe and a circulating pouring member. The cavity is divided into a first cavity and a second cavity, and the first cavity and the second cavity are arranged oppositely. The lower end of the pouring gate is connected to the circulating pouring member located in the moving template, and the output end of the circulating pouring member is connected to a plurality of pouring pipes. The plurality of pouring pipes are arranged around the first cavity and the second cavity; a base is also arranged at the lower end of the fixed template, and a lift plate that can move up and down is arranged between the base and the fixed template. A plurality of vertical ejector pins are arranged on the lift plate to eject the formed injection molded parts through the fixed template.
[0005] Further, the plurality of pouring pipes are distributed in a T shape, and the first cavity and the second cavity are respectively located on both sides of the distribution of the plurality of pouring pipes.
[0006] Further, a plurality of heat collecting pipes for heating raw materials are arranged at the upper end of the circulating pouring member.
[0007] Further, two shunt pipes arranged in opposite directions are arranged at the bottom of the pouring pipe. One shunt pipe leads to the first cavity, and the other shunt pipe leads to the second cavity.
[0008] Further, a plurality of cooling pipes for cooling are penetrated in the fixed template.
[0009] Further, a support frame with a cavity is arranged between the fixed template and the base. The lift plate is located in the cavity. Driving components are arranged at the front and rear ends of the fixed template, and the driving ends of the driving components are connected to the lift plate to make the lift plate move up and down.
[0010] Further, the driving end of the driving component is connected to a connecting rod, a clamping member is provided on the connecting rod, a lifting plate and the base are provided with a lifting plate for supporting, the clamping member is clamped with the lifting plate, and the lifting plate drives the base to move up and down under the drive of the driving component.
[0011] One or more of the above technical solutions in the injection mold provided by the embodiment of the present invention at least have the following technical effects:
[0012] In this design, demolding is completed through two actions of the slider. First, the moving template and the fixed template are closed to form a sealed cavity; the raw material enters the circulating pouring member through the pouring port, and then is evenly distributed into the first cavity and the second cavity through multiple pouring pipes; the raw material is cooled and solidified in the cavity to form an injection molded part; the moving template and the fixed template are separated to complete the first action of the slider. At the same time, the lifting plate rises, and the ejector pin ejects the injection molded part from the cavity to complete the second action of the slider. The double-cavity design enables the mold to produce two injection molded parts simultaneously. Compared with a single-cavity mold, the production efficiency is doubled. The circulating pouring system realizes multi-point uniform pouring, effectively solves the problem of uneven raw material flow, reduces the defects inside the injection molded part, and improves the overall quality of the product. The demolding method combining the lifting plate and the ejector pin ensures the smoothness and integrity of the injection molded part during demolding, and reduces the risk of product damage. Description of the Drawings
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0014] Figure 1 The structure of the injection mold provided by the embodiment of the present invention Figure 1 。
[0015] Figure 2 The structure of the injection mold provided by the embodiment of the present invention with the moving template ignored Figure 2 。
[0016] Figure 3 The structure of the injection mold provided by the embodiment of the present invention with the moving template ignored Figure 3 。
[0017] Description of Main Reference Numerals: 100, moving platen; 110, fixed platen; 120, cavity; 130, pouring gate; 140, pouring pipe; 150, circulating pouring member; 160, first cavity; 170, second cavity; 180, base; 190, lifting plate; 200, ejector pin; 210, heat collecting pipe; 220, shunt pipe; 230, cooling pipe; 240, support frame; 250, cavity; 260, drive assembly; 270, connecting rod; 280, clamping member; 290, lifting tray. Detailed Implementation Manner
[0018] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying Figures 1 to 3 drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying Figures 1 to 3 drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as a limitation to the present utility model.
[0019] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality" means two or more unless otherwise specifically defined.
[0021] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0022] In an embodiment of the present utility model, the present case provides an injection mold for injecting raw materials to form injection molded parts, including a movable moving template 100 and a stationary fixed template 110. A cavity 120 is formed between the moving template 100 and the fixed template 110. A pouring port 130 is provided at the upper end of the moving template 100, and the pouring port 130 is communicated with the cavity 120. It further includes a pouring pipe 140 and a circulating pouring member 150. The cavity 120 is divided into a first cavity 160 and a second cavity 170. The first cavity 160 and the second cavity 170 are oppositely arranged. The lower end of the pouring port 130 is connected to the circulating pouring member 150 located inside the moving template 100. The output end of the circulating pouring member 150 is connected to a plurality of pouring pipes 140, and the plurality of pouring pipes 140 surround the first cavity 160 and the second cavity 170. A base 180 is further provided at the lower end of the fixed template 110. A lifting plate 190 that can move up and down is provided between the base 180 and the fixed template 110. A plurality of vertical ejector pins 200 are provided on the lifting plate 190 to eject the formed injection molded part through the fixed template 110.
[0023] Specifically, demolding is completed through two slides. First, the moving template 100 and the fixed template 110 are closed to form a sealed cavity 120. The raw material enters the circulating pouring member 150 through the pouring port 130, and then is evenly distributed into the first cavity 160 and the second cavity 170 through a plurality of pouring pipes 140. The raw material cools and solidifies in the cavity 120 to form an injection molded part. The moving template 100 and the fixed template 110 are separated to complete the first slide. At the same time, the lifting plate 190 rises, and the ejector pins 200 eject the injection molded part from the cavity 120 to complete the second slide. The double-cavity 120 design enables the mold to produce two injection molded parts simultaneously. Compared with a single-cavity 120 mold, the production efficiency is doubled. The circulating pouring system realizes multi-point uniform pouring, effectively solves the problem of uneven raw material flow, reduces the defects inside the injection molded part, and improves the overall quality of the product. The demolding method combining the lifting plate 190 and the ejector pins 200 ensures the smoothness and integrity of the injection molded part during the demolding process, and reduces the risk of product damage.
[0024] In another embodiment of the present utility model, a plurality of pouring pipes 140 are distributed in a T shape, and the first cavity 160 and the second cavity 170 are respectively located on both sides of the distribution of the plurality of pouring pipes 140. Specifically, the T-shaped distributed pouring pipes 140 ensure that the raw material can be simultaneously and evenly distributed to each part of the first cavity 160 and the second cavity 170, thereby improving the molding quality and consistency of the injection molded part.
[0025] In another embodiment of the utility model, several heat - collecting pipes 210 for heating raw materials are provided at the upper end of the circulating casting member 150. The heat - collecting pipes 210 are tubular structures installed at the upper end of the circulating casting member 150, and their quantity is determined according to the specific size of the mold and the heating requirements. These heat - collecting pipes 210 can be filled with heating media (such as hot oil, steam or electric heating elements) inside to pre - heat the raw materials before they enter the cavity 120. The design of the heat - collecting pipes 210 should ensure that heat can be evenly transferred to the flowing raw materials, avoiding local overheating or uneven temperature, and improving the fluidity of the raw materials.
[0026] In another embodiment of the utility model, two shunt pipes 220 are provided at the bottom of the pouring pipe 140 and are arranged in opposite directions. One shunt pipe 220 leads to the first cavity 160, and the other shunt pipe 220 leads to the second cavity 170. The design of the shunt pipes 220 enables the raw materials to directly and quickly enter the first cavity 160 and the second cavity 170, reducing the resistance and time on the flow path, thereby improving the filling efficiency.
[0027] In another embodiment of the utility model, several cooling pipes 230 for cooling are penetrated in the fixed template 110 to uniformly cool the cavity 120 to promote the molding of the raw materials.
[0028] In another embodiment of the utility model, a support frame 240 with a cavity 250 is provided between the fixed template 110 and the base 180. The lifting plate 190 is located inside the cavity 250. Driving components 260 are provided at the front and rear ends of the fixed template 110. The driving ends of the driving components 260 are connected to the lifting plate 190, causing the lifting plate 190 to move up and down. The driving end of the driving component 260 is connected to a connecting rod 270, and a clamping member 280 is provided on the connecting rod 270. A supporting tray 290 for lifting is provided between the lifting plate 190 and the base 180. The clamping member 280 is clamped with the supporting tray 290, and under the drive of the driving component 260, the supporting tray 290 drives the base 180 to move up and down. Specifically, the driving component 260 can be a motor or a cylinder to complete the action. After injection molding, the driving component 260 starts to work, and its driving end applies force to the supporting tray 290 through the connecting rod 270 and the clamping member 280. Under the action of the clamping member 280, the supporting tray 290 starts to rise, and then drives the base 180 to move up and down through the contact surface between its bottom and the base 180. During this process, the lifting plate 190 also rises synchronously, but due to its connection with the ejector pin 200, its main function is to eject the injection - molded part from the cavity 120. As the lifting plate 190 rises, the ejector pin 200 passes through the fixed template 110 and pushes the injection - molded part out of the cavity 120, completing the demolding process. Through the coordinated action of the lifting plate 190 and the supporting tray 290, the injection - molded part can be more stably ejected from the cavity 120, reducing production losses caused by incomplete demolding or damage to the injection - molded part.
[0029] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An injection mold for injecting raw materials to form injection molded parts, comprising a movable moving template and a stationary fixed template. A cavity is formed between the moving template and the fixed template. A pouring gate is provided at the upper end of the moving template, and the pouring gate is communicated with the cavity. It is characterized in that, It also includes a pouring pipe and a circulating pouring member. The cavity is divided into a first cavity and a second cavity. The first cavity and the second cavity are oppositely arranged. The lower end of the pouring port is connected to the circulating pouring member located in the moving template. The output end of the circulating pouring member is connected to a plurality of pouring pipes, and the plurality of pouring pipes surround the first cavity and the second cavity; a base is further provided at the lower end of the fixed template, and a lift plate that can move up and down is provided between the base and the fixed template. A plurality of vertical ejector pins are provided on the lift plate to eject the molded injection part through the fixed template.
2. The injection mold according to claim 1, characterized in that, The plurality of pouring pipes are distributed in a T shape, and the first cavity and the second cavity are respectively located on both sides of the distribution of the plurality of pouring pipes.
3. The injection mold according to claim 1, characterized in that, A plurality of heat collecting pipes for heating raw materials are provided at the upper end of the circulating pouring member.
4. The injection mold according to claim 1, characterized in that, Two shunt pipes arranged in opposite directions are provided at the bottom of the pouring pipe. One shunt pipe leads to the first cavity, and the other shunt pipe leads to the second cavity.
5. The injection mold according to claim 1, wherein, A plurality of cooling pipes for cooling are penetrated in the fixed template.
6. The injection mold according to claim 1, characterized in that A support frame with a cavity is provided between the fixed template and the base. The lift plate is located in the cavity. Driving components are provided at the front and rear ends of the fixed template. The driving end of the driving component is connected to the lift plate to make the lift plate move up and down.
7. The injection mold according to claim 6, wherein The driving end of the driving component is connected to a connecting rod. A clamping member is provided on the connecting rod. A lifting plate for supporting is provided between the lift plate and the base. The clamping member is clamped with the lifting plate, and the lifting plate drives the base to move up and down under the drive of the driving component.