High-precision casting device for creative medal

Abstract

The utility model discloses a creative medal high-precision casting device, which relates to the technical field of creative meals and comprises a lower die and an upper die, and the upper die is positioned at the top of the lower die; a controller is fixedly mounted at one end of the lower mold, a pouring groove is formed in the lower mold, a plurality of hydraulic cylinders are fixedly mounted in the lower mold on the periphery of the pouring groove, an output shaft of each hydraulic cylinder is fixedly connected with the bottom surface of the upper mold, a main runner is formed in the upper mold, and the main runner communicates with the top of the pouring groove; a hopper is fixedly mounted at the top of the upper die, a filter screen is clamped in the hopper, and a mounting ring is fixedly connected to the outer surface of the filter screen. Impurities can be prevented from entering the mold along with molten metal by arranging the filter screen, so that the casting precision of the medal is improved, the filter screen can be conveniently mounted and dismounted by arranging the limiting component, the use effect of the filter screen is improved, and the casting precision of the medal is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of creative medals, in particular to a high-precision casting device for creative medals. Background Technique

[0002] Creative medals are badges awarded to meritorious personnel, those with excellent competition results, etc. They are usually made of metal or other materials, engraved with patterns or words to commend the outstanding achievements or contributions of individuals or groups in a certain aspect. The casting of creative medals is a process that combines artistic creativity and exquisite craftsmanship, aiming to produce medals that not only have unique beauty but also conform to specific honor symbolic meanings. According to the material requirements of the medals, appropriate metal raw materials (such as copper, zinc alloy, gold, silver, etc.) are selected for melting to obtain metal liquid. Then, the metal liquid is poured into the pouring cavity of the mold, and through the cavities and runners inside the mold, the metal liquid is evenly distributed and fills the entire mold. Then, the metal liquid solidifies and cools in the mold to form the preliminary shape of the medal.

[0003] The current medal casting equipment is set with a herringbone main runner for pouring processing. However, the length of its runner increases, which will affect the fluidity of the pouring liquid during the pouring process, and there are also frequent condensation phenomena resulting in blockages, bringing great impacts to the overall casting; its pouring port is set on the central end face of the medal pouring cavity, which will also seriously affect the quality of the later end face.

[0004] In the prior art, a Chinese patent with the publication number of CN220782164U is proposed to solve the above-mentioned existing technical problems. The technical solution disclosed in this patent document is as follows: A medal casting device, which includes an upper die base and a lower die base; arc-shaped concave cavities are provided on the lower end face of the upper die base and the upper end face of the lower die base, and the arc-shaped concave cavities are spliced up and down to form a medal pouring cavity; a pouring runner is also horizontally arranged at the outer corner of the medal pouring cavity, one end of the pouring runner communicates with the corner of the medal pouring cavity through a pouring port, and the other end of the pouring runner respectively passes through the upper die base and the lower die base and then communicates with a pouring sleeve. This medal casting device adopts side pouring runners for relative injection processing, shortens the runner length, ensures the rapid flow and filling of the pouring liquid, reduces the occurrence of shrinkage cavities, and improves the overall pouring quality; by changing the position of the pouring port, it ensures the external surface quality of the later products. However, when this device is used, impurities are easily mixed into the metal liquid and enter the mold interior along with the metal liquid, forming pores and inclusions inside the casting, thereby reducing the casting accuracy of the medal. Content of the Utility Model

[0005] The purpose of the utility model is to provide a high-precision casting device for creative medals to solve the problems proposed in the above background technique.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] High-precision casting device for creative medals, including a lower mold and an upper mold, with the upper mold located at the top of the lower mold; a controller is fixedly installed at one end of the lower mold, and a pouring groove is formed inside the lower mold. A number of hydraulic cylinders are fixedly installed inside the lower mold around the pouring groove, and the output shaft of each hydraulic cylinder is fixedly connected to the bottom surface of the upper mold. A main runner is formed inside the upper mold, and the main runner communicates with the top of the pouring groove. A hopper is fixedly installed at the top of the upper mold, a filter screen is clamped inside the hopper, an installation ring is fixedly connected to the outer surface of the filter screen, and the installation ring is closely attached to the inner wall of the hopper. Limiting components are provided on both sides of the hopper, and each limiting component is used for limiting the installation ring.

[0008] With the above technical solution, in this solution, during the casting process of the existing device for creative medals, impurities are easily mixed into the molten metal and enter the mold interior along with the molten metal, forming pores and inclusions inside the casting, thereby reducing the casting accuracy of the medal. In this application, by installing a filter screen inside the hopper, the molten metal can be filtered before entering the pouring groove, preventing impurities from entering the upper and lower molds along with the molten metal and affecting the casting accuracy of the creative medal. And by setting the limiting components, it is convenient to limit the position of the filter screen inside the hopper, thereby facilitating the installation and disassembly of the filter screen, and further improving the use effect of the filter screen, and thus further improving the casting accuracy of the medal.

[0009] A further improvement of the technical solution of the present utility model lies in that: a number of sub-runners are connected in communication around the main runner, and each sub-runner communicates with the top of the pouring groove.

[0010] With the above technical solution, in this solution, only by setting the main runner, the molten metal flows into the pouring groove through the main runner, which easily causes uneven distribution of the molten metal inside the pouring groove, thereby affecting the casting accuracy of the creative medal. In this application, by installing a number of sub-runners, the molten metal can flow into the pouring groove from multiple directions, improving the evenness of the distribution of the molten metal inside the pouring groove, and thus being able to improve the casting accuracy of the creative medal.

[0011] A further improvement of the technical solution of the present utility model lies in that: each limiting component includes a fixing plate, a number of springs are fixedly installed on the inner surface of each fixing plate, each spring is fixedly connected to the two side surfaces of the hopper respectively, a limiting plate is fixedly installed on the inner side surface of each fixing plate at the top of each spring, and each limiting plate is in contact with the top surface of the installation ring.

[0012] With the above technical solution, in this solution, the elastic force of the spring can form an inward pulling force on the fixed plate, causing the limiting plate to move into the hopper and fit against the surface of the mounting ring, thereby being able to limit the position of the filter screen inside the hopper. And by pulling the fixed plate outward, the limiting plate can be separated from the surface of the mounting ring, so as to facilitate moving the filter screen upward to disassemble the filter screen, so as to facilitate cleaning or replacing the filter screen, thereby improving the use effect of the filter screen.

[0013] A further improvement of the technical solution of the present utility model lies in that: on the top surface of each limiting plate, an inclined surface inclined towards the inner bottom is provided.

[0014] With the above technical solution, in this solution, by providing an inclined surface on the top surface of the limiting plate, when the mounting ring is located on the top of the limiting plate and needs to be moved to the bottom of the limiting plate, the mounting ring can first come into contact with the inclined surface of the limiting plate and squeeze the inclined surface of the limiting plate, squeezing the limiting plate outward, so that the mounting ring can be automatically installed inside the hopper, where there is no need for the operator to manually move the limiting plate outward, thus reducing the operation steps and making it necessary to install the filter screen.

[0015] A further improvement of the technical solution of the present utility model lies in that: on the outer surface of each fixed plate, a pulling block is fixedly installed.

[0016] With the above technical solution, in this solution, by installing the pulling block, the contact area between the operator's hand and the fixed plate can be enlarged, so as to facilitate the operator to pull the fixed plate outward and separate the limiting plate from the mounting ring, so as to facilitate disassembling the filter screen.

[0017] A further improvement of the technical solution of the present utility model lies in that: on both sides of the hopper at both ends of each fixed plate, baffles are fixedly installed, and the outer surface of each baffle is in an L-shaped shape bent inward.

[0018] With the above technical solution, in this solution, by installing the baffle, the maximum distance of the fixed plate moving outward to the hopper can be limited, preventing the spring from being pulled to a too large deformation degree during the process of pulling the fixed plate outward, which may reduce the resilience of the spring, thus playing a protective effect on the spring and prolonging the service life of the device.

[0019] A further improvement of the technical solution of the present utility model lies in that: on both sides of the top of the filter screen, pulling plates are fixedly connected.

[0020] With the above technical solution, in this solution, during the process of disassembling the filter screen, due to the relatively flat surface of the filter screen, it is inconvenient to take it out from the hopper. In this application, by installing the pulling plates, the contact area between the operator's hand and the filter screen can be enlarged, thereby facilitating the disassembly and installation of the filter screen.

[0021] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is as follows:

[0022] 1. The present utility model provides a high-precision casting device for creative medals. Before the molten metal enters the inside of the casting groove, the molten metal can be filtered by a filter screen first, preventing impurities from entering the inside of the upper mold and the lower mold along with the molten metal and affecting the casting precision of the creative medals.

[0023] 2. The present utility model provides a high-precision casting device for creative medals. Through the mutual cooperation between the limiting components, the position of the filter screen inside the hopper can be conveniently limited, facilitating the installation and disassembly of the filter screen, thereby improving the use effect of the filter screen and further improving the casting precision of the medals.

[0024] 3. The present utility model provides a high-precision casting device for creative medals. By installing a number of runner channels, the molten metal can flow into the inside of the casting groove from multiple directions, improving the evenness of the distribution of the molten metal inside the casting groove, and thus further improving the casting precision of the creative medals. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following further illustrates the present utility model with reference to the drawings.

[0026] Figure 1 is a perspective view of the present utility model;

[0027] Figure 2 is an exploded structural schematic diagram of the lower mold and the upper mold of the present utility model;

[0028] Figure 3 is a partial structural schematic diagram of the cross-section of the hopper of the present utility model;

[0029] Figure 4 is a partial exploded structural schematic diagram of the cross-section of the hopper of the present utility model;

[0030] Figure 5 is of the present utility model Figure 4 magnified structural schematic diagram at position A;

[0031] Figure 6 is a partial structural schematic diagram of the first cross-section of the upper mold of the present utility model;

[0032] Figure 7 is a partial structural schematic diagram of the second cross-section of the upper mold of the present utility model.

[0033] In the figure: 1. Lower die; 2. Upper die; 3. Hopper; 4. Controller; 5. Limiting component; 501. Fixed plate; 502. Limiting plate; 503. Spring; 504. Pulling block; 6. Filter screen; 7. Pulling plate; 8. Hydraulic cylinder; 9. Main runner; 10. Baffle; 11. Installation ring; 12. Pouring groove; 13. Sub - runner. Detailed implementation mode

[0034] The following further elaborates on the present utility model in conjunction with embodiments:

[0035] Embodiment 1

[0036] As Figure 3 , Figure 4 and Figure 6 shown, the present utility model provides a high - precision casting device for creative medals, including a lower die 1 and an upper die 2, with the upper die 2 located at the top of the lower die 1; one end of the lower die 1 is fixedly installed with a controller 4, a pouring groove 12 is opened inside the lower die 1, and several hydraulic cylinders 8 are fixedly installed inside the lower die 1 around the pouring groove 12. The output shaft of each hydraulic cylinder 8 is fixedly connected to the bottom surface of the upper die 2. A main runner 9 is opened inside the upper die 2, and the main runner 9 communicates with the top of the pouring groove 12. A hopper 3 is fixedly installed on the top of the upper die 2, a filter screen 6 is clamped inside the hopper 3, the outer surface of the filter screen 6 is fixedly connected with an installation ring 11, and the installation ring 11 is in close fit with the inner wall of the hopper 3. Limiting components 5 are arranged on both sides of the hopper 3, and each limiting component 5 is used for limiting the installation ring 11.

[0037] In this embodiment, during the casting process of creative medals by the existing device, impurities are likely to mix into the molten metal and enter the inside of the die along with the molten metal, forming pores and inclusions inside the casting, thus reducing the casting precision of the medal. In this application, by installing a filter screen 6 inside the hopper 3, the molten metal can be filtered before entering the pouring groove 12, preventing impurities from entering the inside of the upper die 2 and the lower die 1 along with the molten metal and affecting the casting precision of the creative medal. And by setting the limiting components 5, it is convenient to limit the position of the filter screen 6 inside the hopper 3, thereby facilitating the installation and disassembly of the filter screen 6, further improving the use effect of the filter screen 6, and thus further improving the casting precision of the medal.

[0038] Embodiment 2

[0039] As Figure 1 , Figure 6 and Figure 7 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, several sub - runners 13 are connected in communication around the main runner 9, and each sub - runner 13 communicates with the top of the pouring groove 12.

[0040] In this embodiment, by only arranging the sprue 9, the molten metal flows into the inside of the pouring groove 12 through the sprue 9, which easily causes uneven distribution of the molten metal in the pouring groove 12, thereby affecting the casting accuracy of the creative medal. In this application, by installing a plurality of runner channels 13, the molten metal can flow into the inside of the pouring groove 12 from multiple directions, improving the evenness of the distribution of the molten metal in the pouring groove 12, and thus improving the casting accuracy of the creative medal.

[0041] Embodiment 3

[0042] As Figure 1 、 Figure 3 and Figure 5 shown, on the basis of Embodiment 2, the present utility model provides a technical solution: Preferably, each limiting component 5 includes a fixing plate 501. A plurality of springs 503 are fixedly installed on the inner surface of each fixing plate 501. Each spring 503 is fixedly connected to the two side surfaces of the hopper 3 respectively. On the inner side surface of each fixing plate 501 at the top of each spring 503, a limiting plate 502 is fixedly installed. Each limiting plate 502 is in contact with the top surface of the mounting ring 11. An inclined surface inclined towards the inner bottom is formed on the top surface of each limiting plate 502. A pulling block 504 is fixedly installed on the outer side surface of each fixing plate 501. Baffles 10 are fixedly installed on both sides of the hopper 3 at both ends of each fixing plate 501. The outer side surface of each baffle 10 is in an L-shaped shape bent towards the inner end.

[0043] In this embodiment, the elastic force of the spring 503 itself can form an inward pulling force on the fixed plate 501, causing the limiting plate 502 to move into the hopper 3 and fit against the surface of the mounting ring 11. Thus, the position of the filter screen 6 inside the hopper 3 can be limited. By pulling the fixed plate 501 outward, the limiting plate 502 can be separated from the surface of the mounting ring 11, facilitating the upward movement of the filter screen 6 for disassembly, so as to clean or replace the filter screen 6, thereby improving the usage effect of the filter screen 6. By providing an inclined surface on the top surface of the limiting plate 502, when the mounting ring 11 is located on top of the limiting plate 502 and needs to be moved to the bottom of the limiting plate 502, the mounting ring 11 can first come into contact with the inclined surface of the limiting plate 502 and squeeze the inclined surface of the limiting plate 502, pushing the limiting plate 502 outward, enabling the automatic installation of the mounting ring 11 inside the hopper 3 without the need for an operator to manually move the limiting plate 502 outward, thus reducing the operation steps and making it necessary to install the filter screen 6. By installing the pulling block 504, the contact area between the operator's hand and the fixed plate 501 can be enlarged, facilitating the operator to pull the fixed plate 501 outward to separate the limiting plate 502 from the mounting ring 11 for disassembly of the filter screen 6. By installing the baffle 10, the maximum distance of the fixed plate 501 moving outward from the hopper 3 can be limited, preventing the spring 503 from being pulled to an excessive deformation degree during the process of pulling the fixed plate 501 outward, which may reduce the resilience of the spring 503, thus protecting the spring 503 and extending the service life of the device.

[0044] Embodiment 4

[0045] As Figure 1 、 Figure 3 and Figure 4 shown, on the basis of Embodiment 3, the present utility model provides a technical solution: Preferably, both sides of the top of the filter screen 6 are fixedly connected with pulling plates 7.

[0046] In this embodiment, during the disassembly of the filter screen 6, since the surface of the filter screen 6 is relatively flat and it is inconvenient to take it out of the hopper 3, in this application, by installing the pulling plates 7, the contact area between the operator's hand and the filter screen 6 can be enlarged, thereby facilitating the disassembly and installation of the filter screen 6.

[0047] The working principle of this high-precision casting device for creative medals will be specifically described below.

[0048] As Figures 1 - 7As shown, the operator pours the molten metal into the interior of the hopper 3. First, the filter screen 6 is used to filter the impurities in the molten metal to prevent the impurities from entering the interiors of the upper mold 2 and the lower mold 1 along with the molten metal and affecting the casting accuracy of the subsequent creative medal. The filtered molten metal enters the interior of the pouring groove 12 through the main runner 9 and the sub-runners 13, and waits for the creative medal to cool and form. After the casting of the creative medal is completed, the operator can pull the pull block 504 outwards, so that the limiting plate 502 is separated from the mounting ring 11, and then pull the pull plate 7 upwards, and then the filter screen 6 can be removed, so as to facilitate the cleaning or replacement of the filter screen 6, prevent the impurities adhered to the surface of the filter screen 6 from being excessive and blocking, thereby improving the use effect of the filter screen 6. After the treatment of the filter screen 6 is completed, the operator can directly move the filter screen 6 from top to bottom, make the mounting ring 11 contact with the limiting plate 502, and squeeze the limiting plate 502, so that the limiting plate 502 moves outwards, and then continue to snap the mounting ring 11 into the interior of the hopper 3 to quickly install the filter screen 6. When the mounting ring 11 is completely snapped into the interior of the hopper 3, the spring 503 can be used to pull the limiting plate 502, so that the limiting plate 502 moves to the top of the mounting ring 11 for adaptation and limitation, thereby realizing the quick installation treatment of the filter screen 6.

[0049] The above has generally described the present invention in detail, but based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A high-precision casting device for a creative medal, comprising a lower mold (1) and an upper mold (2), wherein the upper mold (2) is located on the top of the lower mold (1); characterized in that: A controller (4) is fixedly installed at one end of the lower mold (1). A casting trough (12) is provided inside the lower mold (1). A plurality of hydraulic cylinders (8) are fixedly installed inside the lower mold (1) outside the casting trough (12). The output shaft of each hydraulic cylinder (8) is fixedly connected to the bottom surface of the upper mold (2). A main flow channel (9) is provided inside the upper mold (2). The main flow channel (9) is communicated with the top of the casting trough (12). A hopper (3) is fixedly installed on the top of the upper mold (2). A filter screen (6) is clamped inside the hopper (3). A mounting ring (11) is fixedly connected to the outer surface of the filter screen (6). The mounting ring (11) is tightly fitted with the inner wall of the hopper (3). Limiting components (5) are provided on both sides of the hopper (3). Each limiting component (5) is used to limit the mounting ring (11).

2. The creative medal high-precision casting device according to claim 1 is characterized by: A plurality of branch channels (13) are arranged in communication with the periphery of the main channel (9), and each of the branch channels (13) is communicated with the top of the casting trough (12).

3. The creative medal high-precision casting device according to claim 1 is characterized by: Each of the limiting components (5) comprises a fixing plate (501), and a plurality of springs (503) are fixedly mounted on the inner surface of each fixing plate (501), and each of the springs (503) is fixedly connected to the surfaces on both sides of the hopper (3), and a limiting plate (502) is fixedly mounted on the inner surface of each fixing plate (501) at the top of each spring (503), and each of the limiting plates (502) is in contact with the top surface of the mounting ring (11).

4. The creative medal high-precision casting device according to claim 3 is characterized by: The top surface of each of the limiting plates (502) is provided with an inclined surface inclined toward the inner bottom.

5. The creative medal high-precision casting device according to claim 4 is characterized in that: A pull block (504) is fixedly mounted on the outer surface of each fixing plate (501).

6. The creative medal high-precision casting device according to claim 5, characterized in that: Baffles (10) are fixedly mounted on both sides of the hopper (3) at both ends of each fixed plate (501), and the outer surface of each baffle (10) is in an L-shape that is bent inward.

7. The creative medal high-precision casting device according to claim 1 is characterized by: Pull plates (7) are fixedly connected to both sides of the top of the filter screen (6).

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