Pouring mold

Through the design of split casting molds, the ejection assembly and mold assembly are used to achieve rapid demolding of dental phone shells and convenient replacement of molds, solving the problems of easy damage and inconvenient replacement of existing molds, reducing production costs and improving efficiency.

CN223265912UActive Publication Date: 2025-08-26NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Application Number
CN202422321377.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-08-26
Estimated Expiration
2034-09-24

AI Technical Summary

Technical Problem

The existing dental high-speed turbo mobile phone molds are prone to damage the shell during the demolding process, and the integrated mold structure leads to inconvenience in replacement, which increases production cost and time.

Method used

A split casting mold is designed, including a mold base and a separable mold body. It can realize rapid demolding and mold replacement through the ejection assembly and mold assembly, and the die separation from the base is achieved by using a drive motor and ejection column. The slide rod and spring structure facilitate separation of the casting parts.

Benefits of technology

It realizes rapid separation and replacement of molds, reduces production costs, shortens production cycles, and improves production efficiency and production capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of manufacturing of consumable materials in the oral cavity and the dental department, in particular to a pouring mold which comprises a mold base, an adjusting cavity and an installation cavity are formed in the mold base, an ejection assembly is arranged in the adjusting cavity, and the ejection assembly comprises a driving motor fixedly installed in the mold base. The output end of the driving motor is fixedly connected with a rotating rod, the side face of the rotating rod is fixedly connected with a fixing column through a connecting block, a driving groove is formed in the side face of the fixing column, the fixing column extends into the driving groove, the top of the driving groove is fixedly connected with a moving plate, the moving plate is slidably connected with the interior of the adjusting cavity, and a plurality of ejection columns are arranged at the top of the moving plate. The ejection column penetrates through the inner bottom wall of the mounting cavity and is in sliding connection with the inner bottom wall of the mounting cavity, by arranging the ejection assembly, ejection of the first mold body and the second mold body is achieved, the first mold body and the second mold body can be rapidly separated from the mold base, operation is convenient, the ejection rate can be increased, and practicability is high.
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Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing consumable materials in oral cavity and dentistry, in particular to a casting mold. Background Art

[0002] During dental treatment, dental handpieces come into close contact with saliva, blood, gingival crevicular fluid, and dental plaque. These surfaces, along with the turbine components and tubing within the handpiece, can become contaminated with pathogens to varying degrees after use. Dental procedures often result in mucosal and skin damage, and many blood-borne and infectious diseases are transmitted through wounds caused by improperly sterilized dental handpieces. Dental handpieces are precision-engineered and complex. The handpiece's turbine chamber, water and air channels, and other accessories contain complex cavities and difficult-to-access tubing. These specialized structures are susceptible to contamination and difficult to thoroughly disinfect during the back-inhalation process when the handpiece is stopped. Due to the cumbersome disinfection procedures, high disinfection costs, the risk of damage during disinfection, the high price of traditional handpieces, and the high number of dental patients, it is difficult for general dental practices to meet the national standard of "one handpiece, one use, one disinfection or sterilization."

[0003] However, the existing casting mold still has certain shortcomings when used. Due to the special shape of the dental mobile phone shell, a specific casting method is required during the production of the dental mobile phone shell. However, the existing mold is generally an integrated structure, and it is not easy to demold after casting. Generally, the bottom needs to be hammered to demold, but the shell formed by the casting is easily damaged again during the hammering process, resulting in defects in the shell. In addition, the casting mold generally includes two parts: a mold base and a mold body. The casting mold is generally designed as an integrated structure. When it is necessary to cast other types of shells, the mold base and the mold body generally need to be replaced as a whole, which is very inconvenient to use. Utility Model Content

[0004] The purpose of the present invention is to provide a casting mold to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A casting mold, wherein an adjustment cavity and an installation cavity are respectively opened inside the mold base, an ejection assembly is provided inside the adjustment cavity, and the ejection assembly includes a driving motor fixedly installed inside the mold base, an output end of the driving motor is fixedly connected to a rotating rod, and the side of the rotating rod is fixedly connected to a fixed column through a connecting block, a driving groove is provided on the side of the fixed column, the fixed column extends into the driving groove, and a movable plate is fixedly connected to the top of the driving groove, the movable plate is slidably connected to the inside of the adjustment cavity, and a plurality of ejection columns are provided on the top of the movable plate, the ejection columns penetrate the inner bottom wall of the installation cavity, and the ejection columns are slidably connected to the inner bottom wall of the installation cavity.

[0007] As a preferred solution of the present invention, a limiting groove is provided on the top of the mold base, and a mold assembly is arranged in the installation cavity. The mold assembly includes a first mold body and a second mold body located inside the installation cavity. The sides of the first mold body and the second mold body are both provided with limiting members, and the limiting members are fitted with the limiting groove. The sides of the first mold body and the second mold body are both provided with plug-in blocks and plug-in grooves.

[0008] As a preferred solution of the present invention, a second processing groove is provided on the side of the first mold body, a first processing groove is opened on the side of the second mold body, a pin hole is opened inside the first processing groove, and a movable cavity is opened inside the first mold body.

[0009] As a preferred solution of the present invention, the interior of the movable cavity is slidably connected to a sliding rod, the side of the sliding rod is fixedly connected to a slider, the slider and the movable cavity are slidably connected, and a spring is provided on the outside of the sliding rod.

[0010] As a preferred solution of the present invention, one end of the spring is elastically connected to the inner wall of the movable cavity, the other end of the spring is elastically connected to the slider, a threaded ring is provided on the side of the slide rod, a fixing pin is connected to the inner thread of the threaded ring, and the fixing pin is plugged into the pin hole.

[0011] As a preferred solution of the present invention, an electric telescopic rod is fixedly connected to the interior of the mold base, the top of the electric telescopic rod is fixedly connected to the mold cover, and a pressing piece is provided at the bottom of the mold cover.

[0012] As a preferred solution of the present invention, the shapes of the first mold body and the second mold body are not limited to rectangles, and can be cylindrical or other shapes. The materials of the first mold body and the second mold body are both set to aluminum alloy.

[0013] As a preferred solution of the present invention, the plug-in slot and the plug-in block are plugged in, and the plug-in slot and the plug-in block are in one-to-one correspondence.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the utility model, by providing an ejection assembly, the ejection of the first mold body and the second mold body is realized, so that they can be quickly separated from the mold base. When the mold and the mold base need to be separated, the switch of the drive motor is first turned on, and the drive motor controls the rotation of the rotating rod. At the same time, the rotating rod drives the fixed column to rotate through the connecting block. The fixed column moves inside the driving groove and drives the driving groove to move up and down. When the connecting block is in a vertical state during rotation, the fixed column is at the highest point. At this time, the ejection column penetrates the inner bottom wall of the installation cavity. At the same time, the top of the ejection column abuts against the bottom of the first mold body and the second mold body, thereby ejecting the mold and realizing rapid separation of the mold and the mold base. The operation is convenient, which is conducive to improving the ejection rate and has strong practicality.

[0016] 2. In the present invention, the mold is divided into two parts by setting a mold assembly. When demolding is required, the first mold body and the second mold body are demolded separately to achieve demolding of the casting. At the same time, the mold and the mold base are separated to facilitate mold replacement. When the casting needs to be demolded, press the slide bar and use a screwdriver to unscrew the fixing pin so that the fixing pin and the pin hole are no longer plugged in. Release the slide bar. At this time, the slide bar moves in the second processing tank and the movable cavity under the action of spring rebound. Then, water is sprayed on the connection and the limiting parts on both sides are pulled to separate the casting and the first mold body and the second mold body. In addition, compared with the mold with an integrated structure, the production cost of the split mold is lower, which can reduce labor costs, shorten the production cycle, and improve the production capacity and efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall cross section of the utility model;

[0019] Figure 3 This is a schematic diagram of the mold base of the present utility model;

[0020] Figure 4 This is a schematic diagram of the ejection structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the mold decomposition of the present utility model;

[0022] Figure 6 This is a schematic diagram of mold fixing of the present utility model;

[0023] Figure 7 It is a partially enlarged schematic diagram of the fixing structure of the present utility model.

[0024] In the figure: 1. mold base; 2. electric telescopic rod; 3. mold cover; 4. adjustment cavity; 5. limiting groove; 6. installation cavity; 7. ejector assembly; 8. pressing member; 9. mold assembly; 701. movable plate; 702. ejector column; 703. driving groove; 704. fixed column; 705. connecting block; 706. rotating rod; 707. driving motor; 901. first mold body; 902. second mold body; 903. limiting member; 904. movable cavity; 905. slider; 906. spring; 907. slide rod; 908. threaded ring; 909. fixing pin; 910. first processing groove; 911. pin hole; 912. plug-in block; 913. plug-in groove; 914. second processing groove. DETAILED DESCRIPTION

[0025] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] For examples, see Figure 1-7 , the utility model provides a technical solution:

[0027] A casting mold includes a mold base 1, the interior of the mold base 1 is respectively provided with an adjustment cavity 4 and an installation cavity 6, the interior of the adjustment cavity 4 is provided with an ejection assembly 7, the top of the mold base 1 is provided with a limiting groove 5, and the installation cavity 6 is provided with a mold assembly 9. The interior of the mold base 1 is fixedly connected to an electric telescopic rod 2, the top of the electric telescopic rod 2 is fixedly connected to a mold cover 3, and the bottom of the mold cover 3 is provided with a clamping part 8. The shapes of the first mold body 901 and the second mold body 902 are not limited to rectangles, and can be cylindrical or other shapes. The material of the first mold body 901 and the second mold body 902 are both set to aluminum alloy, the plug-in slot 912 and the plug-in block 913 are plugged in, and the plug-in slot 912 and the plug-in block 913 are one-to-one corresponding.

[0028] In this embodiment, Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the ejection assembly 7 includes a driving motor 707 fixedly installed inside the mold base 1, the output end of the driving motor 707 is fixedly connected to the rotating rod 706, the side of the rotating rod 706 is fixedly connected to the fixed column 704 through the connecting block 705, the side of the fixed column 704 is provided with a driving groove 703, the fixed column 704 extends into the driving groove 703, the top of the driving groove 703 is fixedly connected to the movable plate 701, the movable plate 701 is slidably connected to the inside of the adjustment cavity 4, and a plurality of ejection columns 702 are provided on the top of the movable plate 701, the ejection columns 702 pass through the inner bottom wall of the installation cavity 6 and the ejection columns 702 are slidably connected to the inner bottom wall of the installation cavity 6.

[0029] Among them, by setting the ejection component 7, the ejection of the first mold body 901 and the second mold body 902 is realized, so that they can be quickly separated from the mold base 1. When the mold and the mold base 1 need to be separated, the switch of the drive motor 707 is first turned on, and the drive motor 707 controls the rotation of the rotating rod 706. At the same time, the rotating rod 706 drives the fixed column 704 to rotate through the connecting block 705. The fixed column 704 moves inside the driving groove 703 and drives the driving groove 703 to move up and down. When the connecting block 705 is in a vertical state during rotation, the fixed column 704 is at the highest point. At this time, the ejection column 702 penetrates the inner bottom wall of the installation cavity 6. At the same time, the top of the ejection column 702 abuts against the bottom of the first mold body 901 and the second mold body 902, thereby ejecting the mold and realizing rapid separation of the mold and the mold base 1.

[0030] In this embodiment, Figure 1 、 Figure 5 、 Figure 6 and Figure 7 As shown, the mold assembly 9 includes a first mold body 901 and a second mold body 902 located inside the installation cavity 6. The sides of the first mold body 901 and the second mold body 902 are both provided with a limiting member 903, and the limiting member 903 is fitted with the limiting groove 5. The sides of the first mold body 901 and the second mold body 902 are both provided with a plug-in block 913 and a plug-in groove 912. The side of the first mold body 901 is provided with a second processing groove 914, and the side of the second mold body 902 is provided with a first processing groove 910. The interior of the first processing groove 910 is provided with a pin hole. 911. A movable cavity 904 is provided inside the first mold body 901. A slide rod 907 is slidably connected to the inside of the movable cavity 904. A slider 905 is fixedly connected to the side of the slider 907. The slider 905 and the movable cavity 904 are slidably connected. A spring 906 is provided on the outside of the slider 907. One end of the spring 906 is elastically connected to the inner wall of the movable cavity 904, and the other end of the spring 906 is elastically connected to the slider 905. A threaded ring 908 is provided on the side of the slider 907. A fixing pin 909 is threadedly connected to the inner thread of the threaded ring 908. The fixing pin 909 is plugged into the pin hole 911.

[0031] Among them, by setting the mold assembly 9, the mold is divided into two parts. When demolding is required, the first mold body 901 and the second mold body 902 are demolded respectively to achieve demolding of the casting. At the same time, by separating the mold and the mold base 1, the mold is conveniently replaced. When the casting needs to be demolded, press the slide bar 907 and use a screwdriver to unscrew the fixing pin 909 so that the fixing pin 909 and the pin hole 911 are no longer plugged in, and release the slide bar 907. At this time, the slide bar 907 moves in the second processing tank 914 and the movable cavity 904 under the action of the rebound of the spring 906. Then, the casting and the first mold body 901 and the second mold body 902 are separated by spraying water at the connection. Compared with the mold with an integrated structure, the production cost of the split mold is lower, which can reduce labor costs, shorten the production cycle, and improve the production capacity and efficiency of the production line.

[0032] The working process of the present invention is as follows: when a casting mold designed by the present invention is in operation, when the mold and the mold base 1 need to be separated, the switch of the driving motor 707 is turned on first, and the driving motor 707 controls the rotation of the rotating rod 706. At the same time, the rotating rod 706 drives the fixed column 704 to rotate through the connecting block 705. The fixed column 704 moves inside the driving groove 703 and drives the driving groove 703 to move up and down. When the connecting block 705 is in a vertical state during rotation, the fixed column 704 is at the highest point. At this time, the ejector column 702 penetrates the inner bottom wall of the installation cavity 6, and the ejector column 702 is ejected at the same time. 02 is in contact with the top of the first mold body 901 and the bottom of the second mold body 902, thereby ejecting the mold and realizing rapid separation of the mold and the mold base 1. When the casting needs to be demoulded, press the slide bar 907 and use a screwdriver to unscrew the fixing pin 909 so that the fixing pin 909 and the pin hole 911 are no longer plugged in. Release the slide bar 907. At this time, the slide bar 907 moves in the second processing tank 914 and the movable cavity 904 under the action of the rebound of the spring 906. Then, the casting and the first mold body 901 and the second mold body 902 are separated by spraying water on the connection.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A casting mold, comprising a mold base (1), characterized in that: The mold base (1) is provided with an adjustment cavity (4) and an installation cavity (6) respectively. An ejection assembly (7) is provided inside the adjustment cavity (4). The ejection assembly (7) comprises a driving motor (707) fixedly installed inside the mold base (1). The output end of the driving motor (707) is fixedly connected to a rotating rod (706). The side of the rotating rod (706) is fixedly connected to a fixing column (704) via a connecting block (705). The fixing column (704) is fixedly connected to the mold base (1). A driving groove (703) is provided on the side, the fixed column (704) extends into the driving groove (703), the top of the driving groove (703) is fixedly connected to a movable plate (701), the movable plate (701) is slidably connected to the inside of the adjustment cavity (4), and a plurality of ejection columns (702) are provided on the top of the movable plate (701), the ejection columns (702) pass through the inner bottom wall of the installation cavity (6), and the ejection columns (702) are slidably connected to the inner bottom wall of the installation cavity (6).

2. A casting mold according to claim 1, characterized in that: A limiting groove (5) is provided on the top of the mold base (1), and a mold assembly (9) is provided in the installation cavity (6). The mold assembly (9) comprises a first mold body (901) and a second mold body (902) located inside the installation cavity (6). The sides of the first mold body (901) and the second mold body (902) are both provided with limiting members (903), and the limiting members (903) and the limiting groove (5) are fitted together. The sides of the first mold body (901) and the second mold body (902) are both provided with plug-in blocks (913) and provided with plug-in grooves (912).

3. A casting mold according to claim 2, characterized in that: A second processing groove (914) is provided on the side of the first mold body (901), a first processing groove (910) is opened on the side of the second mold body (902), a pin hole (911) is opened inside the first processing groove (910), and a moving cavity (904) is opened inside the first mold body (901).

4. A casting mold according to claim 3, characterized in that: The interior of the movable cavity (904) is slidably connected to a slide rod (907), the side of the slide rod (907) is fixedly connected to a slider (905), the slider (905) and the movable cavity (904) are slidably connected, and a spring (906) is provided on the outside of the slide rod (907).

5. A casting mold according to claim 4, characterized in that: One end of the spring (906) is elastically connected to the inner wall of the movable cavity (904), and the other end of the spring (906) is elastically connected to the slider (905). A threaded ring (908) is provided on the side of the slide bar (907), and a fixing pin (909) is connected to the inner thread of the threaded ring (908). The fixing pin (909) is plugged into the pin hole (911).

6. A casting mold according to claim 1, characterized in that: The interior of the mold base (1) is fixedly connected to an electric telescopic rod (2), the top of the electric telescopic rod (2) is fixedly connected to a mold upper cover (3), and the bottom of the mold upper cover (3) is provided with a pressing piece (8).

7. A casting mold according to claim 2, characterized in that: The shapes of the first mold body (901) and the second mold body (902) are not limited to rectangles, and can be cylindrical or other shapes. The material of the first mold body (901) and the second mold body (902) is set to be aluminum alloy.

8. A casting mold according to claim 2, characterized in that: The plug-in slot (912) and the plug-in block (913) are plugged in, and the plug-in slot (912) and the plug-in block (913) are in one-to-one correspondence.