A rapid demolding device for sand casting

Abstract

The utility model provides a kind of for sand mould casting's quick stripping device, belong to sand mould casting technical field. Including: support platform and install on the sand mould mould of support platform, sand mould mould includes the lower mould of installation in support platform top and the upper mould of installation on lower mould;Recycle assembly is provided on sand mould mould.Cooling forming after casting piece in the sand mould mould, start water pump, utilize the heated water of recycle to heat manifold, by heated manifold to sand mould mould fast heating temperature, then, stop the operation of electric heater, start another water pump, so that another water tank in the cooling water of manifold cooling, so that sand mould mould fast heating temperature again cooling, so that sand mould mould is not affected by cold, hot under the temperature of casting piece, sand mould mould completes slightly thermal expansion and contraction, and then facilitate the separation of sand mould mould and the surface of casting piece, realize the purpose of improving stripping efficiency and improving sand mould reusability.

Description

Technical Field

[0001] This utility model relates to the field of sand casting technology, and in particular to a rapid demolding device for sand casting. Background Technology

[0002] Sand casting, a long-standing and widely used metal forming process, operates on the principle of using a malleable sand mold as a temporary template to pour molten metal into parts of a specified shape. This process has long dominated the casting industry due to its advantages such as low material costs and high adaptability. However, in actual production, traditional sand molds often use clay or water glass as binders, and their curing process relies on chemical hardening or natural drying, resulting in slow core strength growth. In the production of complex castings, forced demolding can easily cause surface scratches on the casting. In addition, forcibly removing the casting can easily damage the sand mold. Therefore, this application provides a rapid demolding device for sand casting to meet the requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rapid demolding device for sand casting, which solves the technical problems of low mold demolding efficiency and limited sand mold reuse rate.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A quick demolding device for sand casting includes: a support platform and a sand mold mounted on the support platform, the sand mold including a lower mold mounted on the top of the support platform and an upper mold mounted on the lower mold; The sand mold is equipped with a circulation assembly, which includes two water tanks. Each water tank is connected to an outlet hose, and each outlet hose is equipped with a water pump. The water pumps are installed on the outer surface of the water tanks. The output ends of each outlet hose are connected to a first tee pipe, and the output ends of each first tee pipe are connected to a connecting hose. The output ends of each of the four connecting hoses are connected to a manifold. The output ends of the two manifolds pass through the inner walls of the lower mold and the upper mold, respectively, and the output ends of the two manifolds are connected to a drain hose. The output ends of the four drain hoses are connected to a second tee pipe, and the output ends of each of the two second tee pipes are connected to a return hose. The output ends of each of the two return hoses are connected to the corresponding water tanks. One of the water tanks is equipped with an electric heater, and an immersion cooler is placed on one side of the water tank. The cooling end of the immersion cooler is placed in the other water tank. The input ends of the first tee pipe and the second tee pipe are both equipped with solenoid valves. Support components are installed on the support platform; The support platform is equipped with anti-scratch components; Movable components are installed on the support platform.

[0005] After the casting in the sand mold cools and solidifies, a water pump is activated, allowing hot water from the water tank to enter the first tee pipe through the outlet hose, then through the first tee pipe into the connecting hose, and then through the manifold into the drain hose. Finally, a return hose drains the water back into the water tank. During this process, the heated manifold rapidly heats the sand mold. Afterward, the electric heater is stopped, and simultaneously, another water pump is activated, allowing cold water from another water tank to enter the first tee pipe through the outlet hose, then through the first tee pipe into the connecting hose, and then through the manifold into the drain hose. Finally, a return hose drains the water back into the water tank. This rapid heating and cooling of the sand mold allows it to undergo slight thermal expansion and contraction without affecting the casting temperature. This facilitates separation of the sand mold from the casting surface, improving demolding efficiency and increasing the reusability of the sand mold.

[0006] Optionally, the support assembly includes a slide groove formed on the support platform, a slider is slidably connected to the support platform through the slide groove, a support rod is mounted on the slider, and a solenoid valve is mounted on the support rod.

[0007] The support components are designed to support the solenoid valve and related parts by using a slider that slides within a groove.

[0008] Optionally, a mounting groove is provided on the support platform, and a spring is mounted on the support platform through the mounting groove. A connecting frame is mounted on one end of the spring, and a connecting rod is mounted on the connecting frame. The connecting rod is connected to the support rod.

[0009] After the connecting hose and drain hose are pulled, the spring will be stretched by force. When the upper mold returns to the lower mold, the spring will retract, which can pull the connecting hose and drain hose back to their original positions.

[0010] Optionally, the anti-scratch component includes a passage through which the support platform is opened, a fixing rod is installed on the support platform through the passage, and a rotating tube is movably sleeved on the fixing rod.

[0011] The anti-scratch components allow for the normal movement of the outlet and return hoses. However, during movement, the outlet and return hoses are prone to friction and wear against the support platform. Therefore, a rotating pipe is provided, which allows the outlet and return hoses to contact the surface of the rotating pipe, thus helping to prevent wear on the outlet and return hoses.

[0012] Optionally, the moving component includes a first electrically operated telescopic rod, a U-shaped plate being mounted on the telescopic end of the first electrically operated telescopic rod, a second electrically operated telescopic rod being mounted on the U-shaped plate, and a compression plate being mounted on the telescopic end of the second electrically operated telescopic rod.

[0013] By activating the first electric telescopic rod, its telescopic end moves the U-shaped plate downward, which in turn moves the extrusion plate downward. Then, the second electric telescopic rod is activated, its telescopic end moves the extrusion plate to press and fix the upper mold. After that, the first electric telescopic rod is activated again, its telescopic end moves the upper mold upward, thus achieving the purpose of removing the upper mold.

[0014] Optionally, a mounting bracket is installed on the support platform, and the top of the first electric telescopic rod is mounted on the mounting bracket.

[0015] The fixed frame serves to support the first electric telescopic rod and its related parts, and also serves to support the upper mold after the extrusion plate clamps and fixes it to the upper mold.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects: By setting up a circulation component, after the casting in the sand mold cools and solidifies, the water pump is started to heat the manifold using circulating hot water. The heated manifold then rapidly heats the sand mold. After that, the electric heater is stopped, and another water pump is started to cool the manifold with cold water from another tank. This allows the sand mold to heat up rapidly and then cool down. As a result, the sand mold undergoes slight thermal expansion and contraction without being affected by the temperature of the casting. This facilitates the separation of the sand mold from the surface of the casting, thereby improving demolding efficiency and increasing the reusability of the sand mold. By setting up support components, the stretched spring begins to retract, thereby driving the connecting frame to move. The movement of the connecting frame drives the movement of the connecting rod, one end of the connecting rod drives the movement of the support rod, the movement of the support rod drives the movement of the slider, and the movement of the slider drives the movement of the solenoid valve. This causes the connecting hose and the drain hose to be pulled back to their original positions, thus preventing the connecting hose and the drain hose from being pressed between the upper and lower molds. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0018] Figure 1 A schematic diagram of the overall structure of a rapid demolding device used in sand casting; Figure 2 A schematic diagram of the support platform and related parts of a rapid demolding device used in sand casting; Figure 3 A schematic diagram of the water tank and related parts of a rapid demolding device used in sand casting; Figure 4For rapid demolding device used in sand casting Figure 2 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the moving components of a rapid demolding device used in sand casting.

[0019] [Figure Labels] 1. Support platform; 2. Sand mold; 201. Lower mold; 202. Upper mold; 3. Circulation assembly; 301. Water tank; 302. Water pump; 303. Outlet hose; 304. First tee pipe; 305. Connecting hose; 306. Manifold; 307. Drain hose; 308. Second tee pipe; 309. Return hose; 310. Immersion cooler; 311. Electric heater; 312. Solenoid valve; 4. Support assembly; 401. Slide rail; 402. Slider; 403. Support rod; 404. Connecting rod; 405. Connecting frame; 406. Mounting slot; 407. Spring; 5. Anti-scratch components; 501. Passageway; 502. Fixing rod; 503. Rotary pipe; 6. Moving component; 601. Fixed frame; 602. First electric telescopic rod; 603. U-shaped plate; 604. Second electric telescopic rod; 605. Extrusion plate.

[0020] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0024] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0025] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0026] The rapid demolding device for sand casting provided in this embodiment of the invention aims to solve the problems of low demolding efficiency and limited sand mold reuse rate by providing the following technical solution. The rapid demolding device for sand casting is composed of a support platform, a circulation component, a support component, a support component, an anti-scratching component, and other components. The components work together to improve demolding efficiency and increase the sand mold reuse rate.

[0027] like Figure 1-5As shown, an embodiment of this utility model provides a rapid demolding device for sand casting, comprising: a support platform 1 and a sand mold 2 mounted on the support platform 1. The sand mold 2 includes a lower mold 201 mounted on the top of the support platform 1 and an upper mold 202 mounted on the lower mold 201. A circulation component 3 is provided on the sand mold 2, the circulation component 3 including two water tanks 301, each of the two water tanks 301 being connected to a water outlet hose 303, each of the two water outlet hoses 303 being equipped with a water pump 302, the water pump 302 being mounted on the outer surface of the water tanks 301, and each of the two water outlet hoses 303 being equipped with a first tee pipe 304 at its output end. Each of the four output ends of mold 04 is equipped with a connecting hose 305. Each output end of the four connecting hoses 305 is equipped with a manifold 306. The output ends of two manifolds 306 penetrate the inner walls of the lower mold 201 and the upper mold 202, respectively, and are connected to drain hoses 307. Each output end of the four drain hoses 307 is equipped with a second tee pipe 308. Each output end of the two second tee pipes 308 is equipped with a return water hose 309. The output ends of the two return water hoses 309 are connected to corresponding water tanks 301. One water tank 301 contains an electric heater 311. An immersion cooler 310 is placed on one side of the water tank 301. The cooling end of the cooler 310 is placed in another water tank 301. Solenoid valves 312 are installed at the input ends of both the first tee pipe 304 and the second tee pipe 308. Specifically, according to the above technical solution, after the casting in the sand mold 2 has cooled and solidified, the water pump 302 is activated, causing hot water in the water tank 301 to immerse itself in the first tee pipe 304 through the outlet hose 303, then enter the connecting hose 305 through the first tee pipe 304, and then be discharged into the drain hose 307 through the manifold 306. Finally, the return hose 309 discharges the hot water back into the water tank 301. During this process, the heated manifold 306 rapidly heats the sand mold 2. Afterwards, the process is stopped. The operation of the electric heater 311 is stopped. At the same time, another water pump 302 is started, so that the cold water in the other water tank 301 is immersed into the first three-way pipe 304 through the outlet hose 303, and then enters the connecting hose 305 through the first three-way pipe 304. Then it is discharged into the drain hose 307 through the manifold 306, and then discharged back into the water tank 301 through the return hose 309. This allows the sand mold 2 to heat up quickly and then cool down. In this way, the sand mold 2 completes slight thermal expansion and contraction without the casting temperature being affected by cold or heat. This facilitates the separation of the sand mold 2 from the surface of the casting, thereby improving the demolding efficiency and the reusability of the sand mold.

[0028] like Figure 2 and Figure 4As shown, a support assembly 4 is provided on the support platform 1. The support assembly 4 includes a slide groove 401 formed on the support platform 1. A slider 402 is slidably connected to the support platform 1 through the slide groove 401. A support rod 403 is installed on the slider 402. A solenoid valve 312 is installed on the support rod 403. An installation groove 406 is formed on the support platform 1. A spring 407 is installed on the support platform 1 through the installation groove 406. A connecting bracket 405 is installed at one end of the spring 407. A connecting rod 404 is installed on the connecting bracket 405. The connecting rod 404 is connected to the support rod 403. According to the above technical solution, it should be noted that after the upper mold 202 moves upward, the connecting hose 30 5. When the drain hose 307 is pulled, after the upper mold 202 covers the lower mold 201 again, the stretched spring 407 begins to retract, thereby driving the connecting frame 405 to move. The movement of the connecting frame 405 drives the movement of the connecting rod 404. One end of the connecting rod 404 drives the movement of the support rod 403. The movement of the support rod 403 drives the movement of the slider 402. The movement of the slider 402 drives the movement of the solenoid valve 312, thereby pulling the connecting hose 305 and the drain hose 307 back to their original positions, thus preventing the connecting hose 305 and the drain hose 307 from being pressed between the upper mold 202 and the lower mold 201.

[0029] like Figure 4 As shown, a scratch-resistant component 5 is provided on the support platform 1. The scratch-resistant component 5 includes a passage 501 that passes through the support platform 1. A fixing rod 502 is installed on the support platform 1 through the passage 501. A rotating pipe 503 is movably sleeved on the fixing rod 502. According to the above technical solution, it should be noted that the passage 501 is used for the normal movement of the outlet hose 303 and the return hose 309. During the movement, the outlet hose 303 and the return hose 309 are prone to friction and wear on the support platform 1. Therefore, a rotating pipe 503 is provided. At this time, the outlet hose 303 and the return hose 309 are in contact with the surface of the rotating pipe 503, which helps to prevent wear on the outlet hose 303 and the return hose 309.

[0030] like Figure 1 and Figure 5As shown, a movable component 6 is provided on the support platform 1. The movable component 6 includes a first electric telescopic rod 602. A U-shaped plate 603 is installed at the telescopic end of the first electric telescopic rod 602. A second electric telescopic rod 604 is installed on the U-shaped plate 603. An extrusion plate 605 is installed at the telescopic end of the second electric telescopic rod 604. According to the above technical solution, it should be noted that after the casting is formed, the upper mold 202 needs to be removed. At this time, according to the above technical solution, specifically, by activating the first electric telescopic rod 602, its telescopic end drives the U-shaped plate 603 to move downward. The downward movement of the U-shaped plate 603 drives the extrusion plate 605 to move downward. Subsequently, the second electric telescopic rod 604 is activated, its telescopic end drives the extrusion plate 605 to press and fix the upper mold 202. After that, the first electric telescopic rod 602 is activated again, its telescopic end drives the upper mold 202 to move upward, thereby achieving the purpose of removing the upper mold 202.

[0031] like Figure 1 and Figure 3 As shown, a fixing frame 601 is installed on the support platform 1, and the top end of the first electric telescopic rod 602 is installed on the fixing frame 601. The presence of the fixing frame 601 is used to support and fix the first electric telescopic rod 602.

[0032] Working principle like Figures 1-5 As shown, after the casting in the sand mold 2 cools and solidifies, the water pump 302 is activated, causing hot water in the water tank 301 to be immersed in the first tee pipe 304 through the outlet hose 303, then enters the connecting hose 305 through the first tee pipe 304, and then is discharged into the drain hose 307 through the manifold 306. Finally, the return hose 309 discharges the hot water back into the water tank 301. During this process, the heated manifold 306 rapidly heats the sand mold 2. Afterward, the operation of the electric heater 311 is stopped, and simultaneously, another water pump 302 is activated, causing the other water tank... The cold water in 301 is immersed into the first tee pipe 304 through the outlet hose 303, then enters the connecting hose 305 through the first tee pipe 304, and then is discharged into the drain hose 307 through the manifold 306. Then, the water is discharged back into the water tank 301 through the return hose 309. This allows the sand mold 2 to heat up quickly and then cool down. As a result, the sand mold 2 undergoes slight thermal expansion and contraction without being affected by the temperature of the casting. This facilitates the separation of the sand mold 2 from the surface of the casting, thereby improving demolding efficiency and increasing the reusability of the sand mold.

[0033] After the upper mold 202 moves upward, the connecting hose 305 and the drain hose 307 are pulled. After the upper mold 202 covers the lower mold 201 again, the stretched spring 407 begins to retract, thereby driving the connecting frame 405 to move. The movement of the connecting frame 405 drives the movement of the connecting rod 404. One end of the connecting rod 404 drives the movement of the support rod 403. The movement of the support rod 403 drives the movement of the slider 402. The movement of the slider 402 drives the movement of the solenoid valve 312, thereby pulling the connecting hose 305 and the drain hose 307 back to their original positions, thus preventing the connecting hose 305 and the drain hose 307 from being pressed between the upper mold 202 and the lower mold 201.

[0034] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A rapid demolding device for sand casting, characterized in that, include: Support platform (1) and sand mold (2) installed on support platform (1), the sand mold (2) includes a lower mold (201) installed on top of support platform (1) and an upper mold (202) installed on lower mold (201). The sand mold (2) is equipped with a circulation component (3), which includes two water tanks (301). Each water tank (301) is connected to a water outlet hose (303). Each of the two water outlet hoses (303) is equipped with a water pump (302). The water pump (302) is installed on the outer surface of the water tank (301). Each of the two water outlet hoses (303) has a first tee pipe (304) installed at its output end. Each of the two first tee pipes (304) has a connecting hose (305) installed at its output end. Each of the four connecting hoses (305) has a manifold (306) installed at its output end. The output ends of the two manifolds (306) respectively penetrate the inner walls of the lower mold (201) and the upper mold (202). The output ends of the two manifolds (306) are connected to drain hoses (307), the output ends of the four drain hoses (307) are equipped with second three-way pipes (308), the output ends of the two second three-way pipes (308) are equipped with return water hoses (309), the output ends of the two return water hoses (309) are connected to the corresponding water tanks (301), one of the water tanks (301) is equipped with an electric heater (311), an immersion cooler (310) is placed on one side of the water tank (301), the cooling end of the immersion cooler (310) is placed in the other water tank (301), and the input ends of the first three-way pipe (304) and the second three-way pipe (308) are equipped with solenoid valves (312).

2. The rapid demolding device for sand casting according to claim 1, characterized in that, The support platform (1) is provided with a support assembly (4), the support assembly (4) includes a slide groove (401) opened on the support platform (1), the support platform (1) is slidably connected to a slider (402) through the slide groove (401), a support rod (403) is installed on the slider (402), and the solenoid valve (312) is installed on the support rod (403).

3. The rapid demolding device for sand casting according to claim 2, characterized in that, The support platform (1) is provided with an installation groove (406). A spring (407) is installed on the support platform (1) through the installation groove (406). A connecting frame (405) is installed on one end of the spring (407). A connecting rod (404) is installed on the connecting frame (405). The connecting rod (404) is connected to the support rod (403).

4. The rapid demolding device for sand casting according to claim 1, characterized in that, The support platform (1) is provided with a scratch-resistant component (5). The scratch-resistant component (5) includes a passage opening (501) that passes through the support platform (1). The support platform (1) is equipped with a fixing rod (502) through the passage opening (501). A rotating tube (503) is movably sleeved on the fixing rod (502).

5. The rapid demolding device for sand casting according to claim 1, characterized in that, The support platform (1) is provided with a moving component (6), the moving component (6) includes a first electric telescopic rod (602), the telescopic end of the first electric telescopic rod (602) is equipped with a U-shaped plate (603), the U-shaped plate (603) is equipped with a second electric telescopic rod (604), and the telescopic end of the second electric telescopic rod (604) is equipped with a pressing plate (605).

6. The rapid demolding device for sand casting according to claim 5, characterized in that, A fixed frame (601) is installed on the support platform (1), and the top end of the first electric telescopic rod (602) is installed on the fixed frame (601).

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