A molding sand recycling device for V-process casting
By designing a molding sand recovery device, the casting and molding sand are separated by a baffle and a brush, and rapidly cooled by an umbrella-shaped baffle and a cooling pipe. This solves the problems of difficulty in separating the casting and molding sand and excessively high temperature of hot sand, and improves the process safety and efficiency of V-process casting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAIYANG BAOKUO MASCH EQUIP CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-21
AI Technical Summary
In the V-process casting process, the casting and molding sand are difficult to separate completely, and the hot sand temperature is too high, which can easily damage the next step of the equipment. There is a lack of effective separation and cooling methods in the existing technology.
Design a molding sand recovery device that uses a blocking frame and a brush to separate the casting from the molding sand and rapidly cools it through an umbrella-shaped baffle and a cooling pipe. The device includes a support platform, a side guard, a receiving unit, a cooling unit, and a baffle. A cylinder drives the screen and blocking frame to move, and the separation and rapid cooling of the molding sand are achieved by combining an inclined plate and a cooling pipe.
This achieves effective separation of the casting and molding sand, reduces the temperature of the molding sand, protects the next step of the process, and improves the safety and efficiency of the process.
Smart Images
Figure CN224525933U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of molding sand recovery devices, and more specifically, to a molding sand recovery device for V-process casting. Background Technology
[0002] The content in this section provides only background information related to this application and may not constitute prior art.
[0003] V-process casting, also known as vacuum casting, gets its name from the first letter of the English word "vacuum." Its biggest advantage over traditional sand casting is that it does not use binders. V-process casting involves sealing a sand box and using a vacuum pump to remove air from the mold. This creates a pressure difference between the inside and outside of the mold, causing the dry sand to compact and form the desired cavity. After core placement, mold closing, pouring, and vacuuming, the casting solidifies. The vacuum is then released, and the molding sand disintegrates, resulting in the final casting.
[0004] In the V-process casting, after the casting is poured and the sand box has cooled for a certain period, a sand-falling step is required. This involves pouring the hot sand and casting together onto the screen of a sand-falling device. The casting remains on the upper part of the screen, while the hot sand falls through the screen into a funnel-shaped sand-falling device for subsequent sand processing. In existing technologies, the sand-falling device is a hollow cavity, only serving a sand collection function. This results in the hot sand remaining at a relatively high temperature after passing through the sand-falling device, directly entering the next process. Excessive temperature can easily damage the equipment in the next step. Furthermore, molding sand adheres to the casting, and the casting and molding sand remain mixed together. Achieving complete separation of the two is not addressed in existing technologies. Utility Model Content
[0005] In view of this, the purpose of this application is to provide a molding sand recovery device for V-process casting, which uses a blocking frame to separate the casting from the molding sand, and realizes the falling of the molding sand through the cooperation between the brush and the screen. The device is equipped with a cooling unit to realize the rapid cooling of hot sand. The device has a reasonable structure and is suitable for promotion.
[0006] The objective of this application is achieved through the following technical solution: a molding sand recovery device for V-process casting, comprising a support platform, a retaining edge, a receiving unit, a cooling unit, and a baffle, characterized in that the support platform is a cuboid structure with an open top, the retaining edge is disposed above the support platform via a connecting plate, a slide rail is provided above the support platform, the receiving unit includes a first telescopic cylinder, a second telescopic cylinder, a screen, a support frame, a blocking frame, and a brush, the first telescopic cylinder and the second telescopic cylinder are fixed to one side of the support platform, and a slider is provided below the screen. The block slides with the slide rail. The screen is located between the guard and the support platform. The output shaft of the first telescopic cylinder is fixed to one side of the screen. The output shaft of the second telescopic cylinder is fixed to a support frame. The blocking frame is located between the support frames. A brush is fixed to the bottom of the blocking frame. The baffle is fixed inside the support platform. The cooling unit includes a cooling pipe, a main water inlet pipe, and a main water outlet pipe. The cooling pipe is fixed below the baffle. The main water inlet pipe and the main water outlet pipe are respectively provided on the opposite side walls of the support platform. The two ends of the cooling pipe are connected to the main water inlet pipe and the main water outlet pipe, respectively.
[0007] In some possible embodiments, the baffle has an umbrella-shaped structure and is located inside the upper part of the support platform, with gaps between the two inclined sides of the baffle and the side wall of the support platform.
[0008] In some possible embodiments, an inclined plate is also fixed inside the support platform, and the inclined plate is located below the baffle.
[0009] In some possible embodiments, the cooling pipe is a curved, irregularly shaped pipe.
[0010] In some possible embodiments, multiple blocking frames are arranged side by side, and the number of blocking frames is 4-8 sets, with gaps between the blocking frames.
[0011] In some possible embodiments, the blocking frame includes a transverse blocking frame and a longitudinal blocking frame, which are alternately arranged between the support frame.
[0012] In some possible embodiments, the bottom of the support platform is provided with a material inlet, and a material plate is detachably installed on the material inlet.
[0013] In some possible embodiments, casters are provided around the bottom of the support platform.
[0014] The technical solution of this application embodiment has at least the following advantages and beneficial effects: This application separates the casting from the molding sand by setting up a blocking frame. The second telescopic cylinder can drive the blocking frame to move, which in turn drives the brush to move. Under the action of the first telescopic cylinder, the screen is displaced, and the molding sand falls in cooperation with the brush. The baffle is an umbrella-shaped structure, which cools the molding sand by blocking it. With the cooperation of the inclined plate, the molding sand falls to the bottom of the support platform. With the help of the umbrella-shaped blocking of the baffle, the heat in the space of the support platform is quickly cooled, and the cooling speed is fast. Attached Figure Description
[0015] Figure 1 A schematic diagram of the overall structure of a molding sand recovery device for V-process casting is provided for some embodiments of this application; Figure 2 A side view of a molding sand recovery device for V-process casting provided for some embodiments of this application; Figure 3 for Figure 2 Sectional view at point A in the middle; Figure 4 A top view of a molding sand recovery device for V-process casting provided for some embodiments of this application; Figure 5 Another overall structural schematic diagram of a molding sand recovery device for V-process casting provided for some embodiments of this application; Figure 6 for Figure 5 A schematic diagram of the specific structure at point B.
[0016] Icons: 1. Support platform; 11. Slide rail; 2. Side guard; 3. Receiving unit; 31. First telescopic cylinder; 32. Second telescopic cylinder; 33. Screen; 34. Support frame; 35. Blocking frame; 36. Brush; 37. Slider; 4. Cooling unit; 41. Cooling pipe; 42. Water inlet main pipe; 43. Water outlet main pipe; 5. Baffle; 6. Connecting plate; 7. Inclined plate; 8. Material plate. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments. The same reference numerals in the accompanying drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the described embodiments of this application without creative effort are within the scope of protection of this application.
[0018] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of this application may have fewer components, other components not shown in the drawings, different components, differently arranged components, or components with different connections, etc. Furthermore, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.
[0019] Please refer to Figures 1-6 , Figure 1 A schematic diagram of the overall structure of a molding sand recovery device for V-process casting is provided for some embodiments of this application; Figure 2 A side view of a molding sand recovery device for V-process casting provided for some embodiments of this application; Figure 3 for Figure 2 Sectional view at point A in the middle; Figure 4 A top view of a molding sand recovery device for V-process casting provided for some embodiments of this application; Figure 5 Another overall structural schematic diagram of a molding sand recovery device for V-process casting provided for some embodiments of this application; Figure 6 for Figure 5 A schematic diagram of the specific structure at point B.
[0020] See appendix Figure 1-6 The present application proposes a molding sand recovery device for V-process casting, which includes a support platform 1, a retaining edge 2, a receiving unit 3, a cooling unit 4, and a baffle 5. The support platform 1 is a cuboid structure with an opening at the top. The retaining edge 2 is located above the support platform 1 through a connecting plate 6. When the worker pours the high-temperature hot sand and the casting together from the sand box onto the support platform 1, the retaining edge 2 can effectively block the molding sand and prevent it from scattering from all sides.
[0021] A slide rail 11 is provided above the support platform 1. The receiving unit 3 includes a first telescopic cylinder 31, a second telescopic cylinder 32, a screen 33, a support frame 34, a blocking frame 35, and a brush 36. The first telescopic cylinder 31 and the second telescopic cylinder 32 are fixed to one side of the support platform 1. A slider 37 is provided below the screen 33. The slider 37 is slidably engaged with the slide rail 11. The screen 33 is located between the side guard 2 and the support platform 1. The output shaft of the first telescopic cylinder 31 is fixedly connected to one side of the screen 33. The first telescopic cylinder 31 is used to drive the screen 33 to move back and forth along the slide rail 11, so that the molding sand on the screen 33 can fall through the screen holes into the support platform 1.
[0022] The output shaft of the second telescopic cylinder 32 is fixed with a support frame 34, and a blocking frame 35 is located between the support frames 34. A brush 36 is fixed at the bottom of the blocking frame 35. The second telescopic cylinder 32 is used to drive the blocking frame 35 to move back and forth, thereby separating the molding sand on the blocking frame 35 from the casting, making it easier to remove the casting.
[0023] The baffle 5 is fixed inside the support platform 1. The cooling unit 4 includes a cooling pipe 41, a main water inlet pipe 42, and a main water outlet pipe 43. The cooling pipe 41 is fixed below the baffle 5. The support platform 1 has a main water inlet pipe 42 and a main water outlet pipe 43 on opposite side walls. The two ends of the cooling pipe 41 are connected to the main water inlet pipe 42 and the main water outlet pipe 43, respectively. The main water inlet pipe 42 is used to supply cooling water to the cooling pipe 41, and the main water outlet pipe 43 is used to send the water out of the cooling pipe 41. A water cooling module is connected to one side of the main water inlet pipe 42. The water cooling module is existing technology and will not be described in detail.
[0024] Furthermore, the baffle 5 is used to break up the falling molding sand, increase the contact area between the molding sand and the baffle 5, and better realize the heat exchange between the molding sand and the baffle 5. Then the molding sand enters the bottom of the support platform 1 for heat exchange, so as to quickly cool the molding sand.
[0025] Specifically, the baffle 5 has an umbrella-shaped structure and is located inside the support platform 1. The two inclined sides of the baffle 5 have gaps with the side wall of the support platform 1. The umbrella-shaped structure can maximize the area of the baffle 5. The baffle 5 can be made of a metal material with good thermal conductivity to facilitate heat conduction. On the other hand, the umbrella-shaped structure can collect the heat released by the molding sand inside the baffle 5 as much as possible, thereby increasing the heat exchange rate between the heat and the cooling pipe 41.
[0026] The support platform 1 is also equipped with an inclined plate 7, which is located below the baffle 5. The inclined plate 7 is used to collect the molding sand falling from both sides of the baffle 5 towards the center of the support platform 1, so as to prevent the molding sand from accumulating and facilitate the subsequent removal of molding sand.
[0027] Specifically, the cooling pipe 41 is a curved irregular pipe. The cooling pipe 41 adopts a curved structure to maximize the length of the cooling pipe 41, improve the cooling effect, and increase the contact area with the bottom of the baffle 5 to better achieve the cooling effect of the baffle 5.
[0028] Specifically, multiple blocking frames 35 are arranged side by side, with a total of 8 sets of blocking frames 35. There are gaps between the blocking frames 35, which are used to separate the molding sand from the casting. The gaps between the blocking frames 35 should preferably be smaller than the length and width of the casting. The blocking frames 35 serve the purpose of receiving the casting and separating the molding sand.
[0029] Furthermore, the blocking frame 35 includes a transverse blocking frame 35 and a longitudinal blocking frame 35, which are staggered between the support frame 34. The transverse blocking frame 35 and the longitudinal blocking frame 35 can better hold the casting and realize the separation of the casting from the molding sand.
[0030] The support platform 1 has a material inlet at its bottom, and a material plate 8 is detachably installed at the material inlet. The purpose of removing the cooled molding sand from the bottom of the support platform 1 can be achieved by removing the material plate 8.
[0031] Specifically, the support platform 1 is equipped with casters around its bottom, which allows the support platform 1 to be moved, reducing the need to move the sandbox, reducing the physical exertion of the staff, and making it more convenient and flexible to use.
[0032] Working principle: The worker pours the material from the sand box onto the support platform 1. A blocking frame 35 is set up to separate the casting from the molding sand. The blocking frame 35 blocks the casting. The second telescopic cylinder 32 can drive the blocking frame 35 to move, which in turn drives the brush 36 to move. Under the action of the first telescopic cylinder 31, the screen 33 is displaced. With the cooperation of the brush 36, the molding sand falls. The baffle 5 blocks the molding sand for preliminary cooling. With the cooperation of the inclined plate 7, the molding sand falls to the bottom of the support platform 1. With the help of the umbrella-shaped blocking of the baffle 5, the heat in the space of the support platform 1 is quickly cooled. The cooling speed is fast. After the molding sand has cooled down, the material plate 8 is removed and the molding sand is taken out from the material outlet.
[0033] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art, all of which fall within the protection scope of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A molding sand recovery device for V-process casting, comprising a support platform (1), a retaining wall (2), a receiving unit (3), a cooling unit (4), and a baffle (5), characterized in that, The support platform (1) is a cuboid structure with an opening at the top. The baffle (2) is located above the support platform (1) via a connecting plate (6). A slide rail (11) is provided above the support platform (1). The receiving unit (3) includes a first telescopic cylinder (31), a second telescopic cylinder (32), a screen (33), a support frame (34), a blocking frame (35), and a brush (36). The first telescopic cylinder (31) and the second telescopic cylinder (32) are fixed to one side of the support platform (1). A slider (37) is provided below the screen (33). The slider (37) slides with the slide rail (11). The screen (33) is located between the baffle (2) and the support platform (1). The first telescopic cylinder... The output shaft of the cylinder (31) is fixed to one side of the screen (33). The output shaft of the second telescopic cylinder (32) is fixed with a support frame (34). The blocking frame (35) is located between the support frames (34). A brush (36) is fixed at the bottom of the blocking frame (35). The baffle (5) is fixed inside the support platform (1). The cooling unit (4) includes a cooling pipe (41), a water inlet pipe (42), and a water outlet pipe (43). The cooling pipe (41) is fixed below the baffle (5). The support platform (1) has a water inlet pipe (42) and a water outlet pipe (43) respectively on its two opposite side walls. The two ends of the cooling pipe (41) are connected to the water inlet pipe (42) and the water outlet pipe (43) respectively.
2. The molding sand recovery device for V-process casting according to claim 1, characterized in that, The baffle (5) has an umbrella-shaped structure and is located inside the support platform (1) above it. The two inclined sides of the baffle (5) have gaps with the side wall of the support platform (1).
3. The molding sand recovery device for V-process casting according to claim 1, characterized in that, An inclined plate (7) is also fixed inside the support platform (1), and the inclined plate (7) is located below the baffle (5).
4. The molding sand recovery device for V-process casting according to claim 1, characterized in that, The cooling pipe (41) is a curved, irregularly shaped pipe.
5. The molding sand recovery device for V-process casting according to claim 1, characterized in that, Multiple blocking frames (35) are arranged side by side, and the number of blocking frames (35) is 4-8 sets, with gaps between the blocking frames (35).
6. The molding sand recovery device for V-process casting according to claim 1, characterized in that, The blocking frame (35) includes a transverse blocking frame (35) and a longitudinal blocking frame (35), which are staggered between the support frame (34).
7. A molding sand recovery device for V-process casting according to claim 1, characterized in that, The bottom of the support platform (1) is provided with a material port, and a material plate (8) can be detachably installed on the material port.
8. A molding sand recovery device for V-process casting according to claim 1, characterized in that, The support platform (1) is equipped with casters around its bottom.