A rapid prototyping injection mold

Abstract

The utility model relates to injection mold technical field, and disclose a kind of injection mold of rapid prototyping, including main body mechanism, and cooling mechanism is arranged on the main body mechanism.This kind of injection mold of rapid prototyping, main body mechanism is collocated with quick positioning mechanism, using two groups of symmetrical distribution's locating pin and conical locating hole design, can quickly and accurately complete upper and lower mould butt joint, guarantee accurate alignment of cavity, both greatly shorten installation time, improve production efficiency, and ensure product forming precision and quality consistency, its cavity surface wear-resistant coating can reduce injection wear, prolong the life of mould, guarantee product surface smooth and flawless, quick ejection mechanism is driven by support plate and uniformly distributed and end and lower model cavity bottom flush multiple ejector pins, can be rapidly and stably after product cooling forming and eject it, realize quick stripping, further improve production efficiency, while, uniform ejection force can also avoid product damage due to uneven stress, ensure product integrity and quality.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a rapid prototyping injection mold. Background Technology

[0002] Injection molds are tools used to produce plastic products, giving them a complete structure and precise dimensions. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it involves injecting molten plastic into a mold cavity under high pressure using an injection molding machine, where it is then cooled and solidified to obtain the molded product.

[0003] In the traditional use of injection molds, there are many problems that affect production efficiency and product quality. First, the positioning and installation process of the upper and lower molds is quite complicated, usually requiring a lot of time for precise alignment. This not only reduces production efficiency, but also makes it easy for positioning deviations to occur during installation, resulting in the cavity not being accurately aligned, which in turn affects the molding accuracy and quality consistency of the product. Utility Model Content

[0004] The purpose of this invention is to provide a rapid prototyping injection mold to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a rapid prototyping injection mold, including a main body mechanism, wherein a cooling mechanism is provided on the main body mechanism;

[0006] The main body includes an upper mold and a lower mold. The mating surface of the upper mold and the lower mold is provided with a quick positioning mechanism. The quick positioning mechanism includes two sets of symmetrically distributed positioning pins and matching conical positioning holes. The positioning pins are fixedly connected to the four corners of the top of the lower mold. The conical positioning holes are opened at the four corners of the upper mold. The bottom of the lower mold is provided with a quick ejection mechanism. The quick ejection mechanism includes a support plate and evenly distributed ejector pins. The ends of the ejector pins are flush with the bottom surface of the lower mold cavity.

[0007] Preferably, both the upper and lower molds have cavities inside, and the surfaces of the cavities of both the upper and lower molds are covered with a wear-resistant coating.

[0008] Furthermore, both the upper and lower molds have cavities inside, which are key structural parts of the injection molded products. The surfaces of the cavities in both molds are covered with a wear-resistant coating. The wear-resistant coating can effectively improve the wear resistance of the cavity surface, reduce the wear of the plastic raw material on the cavity surface during the injection molding process, thereby extending the service life of the mold and ensuring that the mold can continuously and stably produce products that meet quality requirements.

[0009] Preferably, the upper mold has a sprue on the top right side, the sprue is connected to the branch channel in the upper mold through the main channel, and the end of the branch channel is connected to the cavity.

[0010] Furthermore, a sprue is specially opened on the top right side of the upper mold. This is the entrance for the plastic raw material to enter the mold cavity. The sprue is connected to the runner in the upper mold through the main runner. The main runner guides the plastic raw material from the sprue into the mold, while the runner further distributes the plastic raw material in the main runner to each cavity. Finally, the end of the runner connects to the cavity, so that the plastic raw material can be smoothly filled into the cavity to complete the product molding process. This structural design can ensure the reasonable flow and uniform distribution of the plastic raw material in the mold.

[0011] Preferably, the outer end of the pouring port is provided with a flange connection.

[0012] Furthermore, a flange connection is provided at the outer end of the sprue. The function of the flange connection is to facilitate the connection and fixation of the sprue with external injection molding equipment such as the nozzle of the injection molding machine. Through the flange connection, it can be ensured that the connection between the sprue and the injection molding equipment is tight and stable, preventing the leakage of plastic raw materials during the injection process, and ensuring the smooth progress of the injection process and product quality.

[0013] Preferably, multiple ejector pins are provided.

[0014] Furthermore, regarding the ejector pins in the rapid ejection mechanism, it is particularly emphasized that multiple ejector pins are used. Multiple ejector pins allow for more even and effective ejection of the molded product from the lower mold cavity. If the number of ejector pins is too small, uneven force may occur during ejection, leading to product deformation or damage. Multiple ejector pins disperse the ejection force, ensuring the product detaches smoothly and completely from the cavity, improving demolding quality and production efficiency.

[0015] Preferably, the cooling mechanism includes a support block, on which a water pipe is fixedly connected.

[0016] Furthermore, the cooling mechanism includes a support block, which serves to fix and support other components. A water pipe is fixedly connected to the support block. The water pipe is one of the core components of the cooling mechanism and is used to transport the cooling medium. Through the circulation of the cooling medium inside the mold, the heat generated by the mold during the injection molding process is carried away, thereby cooling the mold, accelerating the cooling and molding speed of the product, improving production efficiency, and also helping to ensure the stability of product quality.

[0017] Preferably, the support block is fixedly connected to the right side of the lower mold, the water pipe extends to the upper mold from the left side, a cooling channel is provided in the upper mold, the water pipe passes through the right side of the upper mold from the left side and extends into the cooling channel provided in the upper mold, and multiple hollow drainage holes are provided at both the front and rear ends of the upper mold.

[0018] Furthermore, the support block is fixedly connected to the right side of the lower mold. This installation position facilitates the installation, maintenance, and repair of the cooling mechanism. The left side of the water pipe extends into the cooling channel opened in the upper mold, allowing the cooling medium to enter the upper mold and cool it. In addition, multiple hollow drainage holes are opened at both the front and rear ends of the upper mold. The function of the drainage holes is to discharge the cooling medium with heat from the mold after it has finished cooling the mold, so that the cooling medium can continue to circulate and ensure the cooling effect. The setting of multiple drainage holes can improve drainage efficiency, ensure that the cooling medium can be discharged in time, and maintain the normal operation of the mold cooling system.

[0019] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0020] First, the rapid positioning mechanism of the injection mold body of this utility model adopts two sets of symmetrically distributed positioning pins and conical positioning holes, which can quickly and accurately complete the docking of the upper and lower molds, ensuring accurate alignment of the cavity. This not only significantly shortens the installation time and improves production efficiency, but also ensures the product molding accuracy and quality consistency. The wear-resistant coating on the cavity surface can reduce injection wear, extend mold life, and ensure that the product surface is smooth and flawless. The rapid ejection mechanism drives multiple ejector pins that are evenly distributed and whose ends are flush with the bottom surface of the lower mold cavity through the support plate. It can quickly and smoothly eject the product after it has cooled and formed, achieving rapid demolding. This further improves production efficiency, and the uniform ejection force can also prevent the product from being damaged due to uneven force, ensuring product integrity and quality.

[0021] Secondly, this utility model introduces cooling water into the cooling channel opened in the upper mold through a water supply pipe, and forms a cooling water circulation system with the drainage holes at both ends of the upper mold. This can quickly remove the heat from the mold and the injection molded product, significantly shorten the product cooling time, and improve production efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0025] Figure 4This is a schematic diagram of the upper mold structure of this utility model from a bottom view.

[0026] The components are: 1. Main body; 11. Upper mold; 12. Lower mold; 13. Sprue; 14. Flange connection; 2. Cooling mechanism; 21. Support block; 22. Water pipe; 3. Quick positioning mechanism; 31. Positioning pin; 4. Quick ejection mechanism; 41. Support plate; 42. Ejector pin. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides the following technical solution:

[0029] Example 1

[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 A rapid prototyping injection mold includes a main body 1, on which a cooling mechanism 2 is provided;

[0031] The main body 1 includes an upper mold 11 and a lower mold 12. The mating surfaces of the upper mold 11 and the lower mold 12 are provided with a quick positioning mechanism 3. The quick positioning mechanism 3 includes two sets of symmetrically distributed positioning pins 31 and matching conical positioning holes. The positioning pins 31 are fixedly connected to the four corners of the top of the lower mold 12, and the conical positioning holes are opened at the four corners of the upper mold 11. The bottom of the lower mold 12 is provided with a quick ejection mechanism 4. The quick ejection mechanism 4 includes a support plate 41 and evenly distributed ejector pins 42. The ends of the ejector pins 42 are flush with the bottom surface of the cavity of the lower mold 12.

[0032] Specifically, both the upper mold 11 and the lower mold 12 have cavities inside, and the surfaces of the cavities of both the upper mold 11 and the lower mold 12 are covered with a wear-resistant coating.

[0033] Specifically, a sprue 13 is provided on the top right side of the upper mold 11. The sprue 13 is connected to the branch channel inside the upper mold 11 through the main channel, and the end of the branch channel is connected to the cavity.

[0034] Specifically, a flange connection 14 is provided at the outer end of the pouring port 13.

[0035] Specifically, there are multiple ejector pins 42.

[0036] Through the above technical solution, the upper mold 11 and the lower mold 12 are connected by a quick positioning mechanism 3. The positioning pins 31 at the four corners of the top of the lower mold 12 are inserted into the corresponding tapered positioning holes at the four corners of the upper mold 11. Due to the symmetrical distribution design of the positioning pins 31 and the tapered positioning holes, the positioning and installation of the upper mold 11 and the lower mold 12 can be completed quickly and accurately, ensuring accurate alignment of their cavities and providing a precise mold structure foundation for subsequent injection molding. Injection is performed through the sprue 13 on the top right side of the upper mold 11. The flange connection 14 at the outer end of the sprue 13 can be easily connected to the injection pipe of the injection molding machine, ensuring that the injection material can be... The injection material is injected into the mold stably and accurately. It enters the main runner through the sprue 13, then flows through the main runner to the branch runner, and finally enters the cavity from the end of the branch runner. After the injection material enters the cavity, the cooling mechanism 2 is activated. After the injection molded product cools and forms, the upper mold 11 and the lower mold 12 are opened. The quick ejection mechanism 4 set at the bottom of the lower mold 12 starts to work. The support plate 41 moves upward, driving multiple evenly distributed ejector pins 42 to move upward. Since the end of the ejector pin 42 is flush with the bottom surface of the cavity of the lower mold 12, the formed product can be quickly ejected from the cavity of the lower mold 12 during the upward process of the ejector pin 42, completing the demolding operation of the product.

[0037] Example 2

[0038] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 Furthermore, based on Embodiment 1, the cooling mechanism 2 includes a support block 21, on which a water supply pipe 22 is fixedly connected.

[0039] Specifically, the support block 21 is fixedly connected to the right side of the lower mold 12, the upper mold 11 has a cooling channel, the water pipe 22 passes through the right side of the upper mold 11 on the left and extends into the cooling channel of the upper mold 11, and multiple hollow drainage holes are opened at both the front and rear ends of the upper mold 11.

[0040] Through the above technical solution, cooling water enters the cooling channel inside the upper mold 11 through the water supply pipe 22 to cool the upper mold 11. At the same time, due to the overall heat conduction of the mold, the lower mold 12 will also be cooled to a certain extent. Multiple hollow drainage holes are opened at the front and rear ends of the upper mold 11 for the discharge of cooling water, so that the cooling water can circulate and continuously remove the heat of the mold and the injection molded product, thus accelerating the cooling and molding process of the injection molded product.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid prototyping injection mold, comprising a main body (1), characterized in that: A cooling mechanism (2) is provided on the main body (1); The main body (1) includes an upper mold (11) and a lower mold (12). The mating surfaces of the upper mold (11) and the lower mold (12) are provided with a quick positioning mechanism (3). The quick positioning mechanism (3) includes two sets of symmetrically distributed positioning pins (31) and matching conical positioning holes. The positioning pins (31) are fixedly connected to the top four corners of the lower mold (12). The conical positioning holes are opened at the four corners of the upper mold (11). The bottom of the lower mold (12) is provided with a quick ejection mechanism (4). The quick ejection mechanism (4) includes a support plate (41) and evenly distributed ejector pins (42). The ends of the ejector pins (42) are flush with the bottom surface of the cavity of the lower mold (12).

2. The rapid prototyping injection mold according to claim 1, characterized in that: Both the upper mold (11) and the lower mold (12) have cavities inside, and the surfaces of the cavities of the upper mold (11) and the lower mold (12) are covered with a wear-resistant coating.

3. The rapid prototyping injection mold according to claim 1, characterized in that: The upper mold (11) has a pouring gate (13) on the top right side. The pouring gate (13) is connected to the branch channel in the upper mold (11) through the main channel. The end of the branch channel is connected to the cavity.

4. The rapid prototyping injection mold according to claim 3, characterized in that: The outer end of the pouring port (13) is provided with a flange connection (14).

5. The rapid prototyping injection mold according to claim 1, characterized in that: The ejector pin (42) is provided in multiple ways.

6. The rapid prototyping injection mold according to claim 1, characterized in that: The cooling mechanism (2) includes a support block (21), on which a water pipe (22) is fixedly connected.

7. The rapid prototyping injection mold according to claim 6, characterized in that: The support block (21) is fixedly connected to the right side of the lower mold (12). A cooling channel is provided inside the upper mold (11). The water pipe (22) passes through the right side of the upper mold (11) on the left and extends into the cooling channel opened in the upper mold (11). Multiple hollow drainage holes are provided at both the front and rear ends of the upper mold (11).

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