Sand spraying and floating sand filtering structure
By designing a sand-dripping floating sand filter structure including sand hanging bin, gas pumping system, sand dropping system, lifting system, screening network and dispersion system, the mold sand blockage and manual filtration time consumption in existing equipment is solved. The problem of this problem is to achieve an efficient combination of floating sand, sand dripping and filtration, ensuring product quality and production efficiency.
Patent Information
- Application Number
- CN202323659136.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2033-12-29
AI Technical Summary
Existing floating sand and sand-dripping equipment are prone to mold sand blockage and product surface defects during the work process, and manual filtration of impurities requires a lot of manpower and downtime, resulting in reduced production capacity.
A sand-sinking floating sand filter structure is designed, including sand hanging bin, gas pumping system, sand falling system, lifting system, screening network and dispersion system, which can realize three modes of floating sand, sand pouring and filtration. The screening net and the disposal system effectively removes sand and impurities.
The cleanliness and delicate sand body is achieved, the quality of sand hanging is ensured, mold sand blockage and product defects are avoided, and production efficiency and production capacity are improved.
Smart Images
Figure CN222429175U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of precision casting, in particular to a sand sprinkling and floating sand filtering structure. [Background technology]
[0002] Precision casting is a special casting method compared to traditional casting process. It can obtain relatively accurate shape and high casting accuracy. Shell making is one of the important processes in the casting process. After the wax model is made, the coating and sanding processes are repeated on the wax model, and sand is hung on the wax model. After the sand material dries and hardens, a shell is formed, which is shell making.
[0003] There are two commonly used sand spreading methods: sand sprinkling and floating sand spreading, and the corresponding equipment is sand sprinkling machine and floating sand machine. Since sand sprinkling and floating sand spreading have their own advantages and disadvantages, different sand sprinkling methods should be used for modules of different sizes and shapes, while a single sand sprinkling machine and floating sand machine can only achieve one method.
[0004] In addition, the existing wax mold often drips during the operation of slurry and sand. After the slurry drips into the floating sand machine and combines with the mold sand, the mold sand in the machine body will be adhered into some small sand clumps, and sink to the bottom with the operation of the floating sand machine, which will block the air holes of the floating sand machine over time; and after the wax mold is processed by floating sand or sand pouring, if the small sand clumps stick to the sand mold shell together, it will cause defects on the surface of the cast product; therefore, after the traditional floating sand and sand pouring work for a period of time, the machine must be stopped to manually pour out the mold sand and filter to remove impurities. However, the manual filtering of mold sand requires human operation, and the manual filtering process takes a long time and requires shutdown, which greatly reduces the production capacity of floating sand and sand pouring.
[0005] In view of the above problems, the applicant has proposed a solution, which can realize both sand floating operation and sand showering operation in one machine body, and can also filter the bonded sand clumps at the same time. [Contents of the utility model]
[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a sand-sprinkling and floating sand filtering structure, and the technical solution adopted is:
[0007] A sand-sprinkling and floating sand filtering structure, comprising
[0008] Hood;
[0009] A sand hanging bin is arranged at the bottom of the hood, wherein the sand hanging bin contains sand material and can be used for placing wax molds;
[0010] The gas pumping system is connected with the space inside the sand hanging bin and can input compressed gas into the bin space to provide floating sand kinetic energy for the sand body;
[0011] The sand falling system includes a sand falling bin and an isolation device, wherein the isolation device can close the connection between the sand hanging bin and the sand falling bin, or open the sand hanging bin and the sand falling bin to allow the sand to fall from the sand hanging bin into the sand falling bin;
[0012] A lifting system is used to lift the sand in the sand drop bin from bottom to top to the upper layer of the machine cover;
[0013] The screening net is located on the upper layer of the machine cover and is used to screen the sand body and the sand mass. The lifting system lifts the sand body to the upper layer of the machine cover and then unloads the sand body onto the screening net. The sand body falls downward from the mesh of the screening net, and the sand mass remains on the screening net.
[0014] The impurity discharge system is used to discharge the sand mass left on the screening net.
[0015] According to a sand sprinkling and floating sand filtering structure of an embodiment of the utility model, the debris removal system includes a vibration device and a debris removal device, the debris removal device includes a debris removal pipe arranged on one side of the machine cover, and the vibration device is used to vibrate the screening net to vibrate the sand masses remaining on the screening net into the debris removal pipe.
[0016] According to a sand sprinkling and floating sand filtering structure of an embodiment of the utility model, a debris discharge ramp is provided on the side of the screening net, and the debris discharge ramp is inclined and communicated with the upper end of the debris discharge pipe.
[0017] According to a sand sprinkling and floating sand filtering structure of an embodiment of the utility model, the vibration device is a vibration motor.
[0018] A sand sprinkling and floating sand filtering structure according to an embodiment of the utility model further includes a sand storage system, which is used to store the sand falling downward from the mesh holes of the screening net.
[0019] According to a sand sprinkling and floating sand filtering structure of an embodiment of the utility model, the sand storage system includes a sand storage bin and a sand receiving plate; the sand storage bin is arranged on both sides of the machine cover, and the bottom of the sand storage bin is connected or closed with the sand hanging bin; the sand receiving plate can be extended to the bottom of the screening net to receive the sand body falling downward from the mesh holes of the screening net and discharge it to the sand storage bin, or recover the sand body falling downward from the mesh holes of the screening net so that it falls directly into the sand hanging bin.
[0020] According to a sand sprinkling and floating sand filtering structure of an embodiment of the utility model, a discharge port is provided at the bottom of the sand storage bin, the discharge port is inclined and its lower end is directly opposite to the sand hanging bin; a sealing plate is provided at the discharge port, and a sealing cylinder for controlling the sealing plate to seal the discharge port or expose the discharge port.
[0021] According to a sand sprinkling and floating sand filtering structure of an embodiment of the utility model, the sand receiving plate is in the shape of a roof which is high in the middle and low on both sides, and the two sides thereof are inclined from top to bottom toward the top of the sand storage bin; the sand receiving plate is normally flat against the inner side of the rear wall of the hood, and a sand receiving cylinder is connected to the sand receiving plate, and the sand receiving cylinder can control the sand receiving plate to extend outward and be placed flat under the screening net, or to retract and be flat.
[0022] According to a sand sprinkling and floating sand filtering structure of an embodiment of the utility model, the lifting system includes a front-end conveying device and a rear-end lifting device; the front-end conveying device includes a conveying screw arranged in a sand falling bin, and the conveying screw conveys the sand body in the sand falling bin to the rear-end lifting device; the rear-end lifting device is a hoist.
[0023] Compared with the prior art, the beneficial effects of the utility model are:
[0024] The utility model forms a floating sand mode in the sand hanging bin through the cooperation of the sand hanging bin and the gas pumping system, and the wax mold can perform floating sand hanging operations in the sand hanging bin; or a circulating sand showering mode and a sand body filtering mode can be formed through the sand hanging bin, the sand falling system, the lifting system, the screening net and the impurity removal system, and the wax mold can perform sand showering and sand hanging operations in the sand hanging bin, and the sand body can also be filtered. The utility model can realize the three modes of floating sand, sand showering and filtering, ensure the cleanliness and fineness of the sand body, and guarantee the quality of sand hanging.
Brief Description of the Drawings
[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0026] Figure 1 It is a three-dimensional schematic diagram of one embodiment of the utility model;
[0027] Figure 2 A cross-sectional view of one embodiment of the present invention Figure 1 (partial);
[0028] Figure 3 A cross-sectional view of one embodiment of the present invention Figure 2 (partial);
[0029] Figure 4 A cross-sectional view of one embodiment of the present invention Figure 3 (partial);
[0030] Figure 5 A cross-sectional view of one embodiment of the present invention Figure 4 (partial);
[0031] Figure 6 for Figure 4 Enlarged view of part A in the middle;
[0032] Figure 7 for Figure 2 Enlarged view of part B in the middle.
[0033] Description of main component symbols:
[0034] 10. Machine cover; 20. Sand hanging bin; 30. Gas pumping system; 40. Sand falling bin; 50. Conveying screw; 60. Elevator; 70. Screening net; 71. Debris discharge ramp; 80. Debris discharge pipeline; 90. Vibrating motor; 100. Sand storage bin; 200. Sand receiving plate; 201. Sand receiving cylinder; 300. Discharge port; 400. Sealing plate; 401. Sealing cylinder. [Specific implementation method]
[0035] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.
[0036] The orientation shown in the drawings cannot be understood as limiting the specific protection scope of the present utility model, and is only provided for reference and understanding of the preferred embodiments. The product components shown in the drawings may be changed in position, increased in number, or simplified in structure.
[0037] The "connection" described in the specification and the mutual "connection" relationship of the components shown in the drawings can be understood as a fixed connection or a detachable connection or an integral connection; it can be a direct connection or a connection through an intermediate medium. Ordinary technicians in this field can understand the connection relationship according to the specific circumstances and can derive different implementation methods in an appropriate manner such as screwing, riveting, welding, clamping or embedding.
[0038] With respect to the directional words such as up, down, left, right, top, bottom, etc. described in the specification and the directions shown in the drawings, the components may be in direct contact or in contact through other features between them; for example, "above" may mean directly above or obliquely above, or it simply means higher than other objects; other directions may be understood by analogy.
[0039] The materials for making parts with solid shapes shown in the specification and the drawings may be metal materials, non-metal materials or other synthetic materials; the mechanical processing techniques used for parts with solid shapes may be stamping, forging, casting, wire cutting, laser cutting, casting, injection molding, CNC milling, 3D printing, machining, etc.; ordinary technicians in this field can adaptively select or combine them according to different processing conditions, costs, and precisions, but are not limited to the above-mentioned materials and manufacturing processes.
[0040] The utility model is a sand-sprinkling and floating sand filtering structure. Figures 1 to 7 As shown, it includes an organic cover 10;
[0041] A sand hanging bin 20 is arranged at the bottom of the hood 10, and the sand hanging bin 20 contains sand material and can be used to place the wax model;
[0042] The gas pumping system 30 is connected to the space inside the sand hanging bin 20 and can input compressed gas into the bin space to provide floating sand kinetic energy for the sand body;
[0043] The sand falling system includes a sand falling bin 40 and an isolation device, wherein the isolation device can close the connection between the sand hanging bin 20 and the sand falling bin 40, or open the sand hanging bin 20 and the sand falling bin 40 to allow the sand to fall from the sand hanging bin 20 into the sand falling bin 40;
[0044] A lifting system, which is used to lift the sand in the sand drop bin 40 from bottom to top to the upper layer of the hood 10;
[0045] The screening net 70 is located on the upper layer of the hood 10 and is used to screen the sand body and the sand mass. After the sand body is lifted to the upper layer of the hood 10, the lifting system unloads the sand body onto the screening net 70. The sand body falls downward from the mesh of the screening net 70, and the sand mass remains on the screening net 70.
[0046] The impurity discharge system is used to discharge the sand mass left on the screening net 70.
[0047] Floating sand operation: put the wax mold into the sand hanging bin 20, start the gas pumping system 30, and the gas pumping system 30 pumps compressed gas into the bin space of the sand hanging bin 20. Under the action of compressed air, the sand body floats and surges in the sand hanging bin 20, so that the sand body sticks to the surface of the wax mold. After repeated slurry and sand sticking actions, a sand mold of a certain thickness is formed on the surface of the wax mold. The wax mold is then heated to melt and flow out, and a sand mold shell that can be cast with molten metal is formed.
[0048] Sand pouring operation: put the wax mold into the sand hanging bin 20, release the isolation equipment, connect the sand hanging bin 20 and the sand falling bin 40, so that the sand body in the sand hanging bin 20 falls into the yarn dropping bin, and then the sand body is lifted from the yarn dropping bin to the upper layer of the machine cover 10 by the lifting system, and the lifting system unloads the sand body onto the screening net 70. After the sand body is evenly screened by the screening net 70, it falls into the net sand hanging bin 20, so that the sand body adheres to the surface of the wax mold. In the sand pouring process, the sand body directly falls into the sand falling bin 40, and then the sand body in the sand falling bin 40 is lifted to the upper layer of the machine cover 10 by the lifting system again, and so on, forming a cyclic sand pouring operation. After repeated slurry dipping and sand pouring, a sand mold of a certain thickness is formed on the surface of the wax mold, and then the wax mold is melted and flows out by heating, that is, a sand mold shell that can be cast with molten metal is formed. In the sand pouring mode, the sand is evenly poured after being evenly screened by the screening net 70, thereby ensuring the quality of sand pouring and hanging.
[0049] Filtering operation: In this operation, the isolation device must be released to connect the sand hanging bin 20 and the sand falling bin 40. The sand in the sand hanging bin 20 falls into the doffing bin, and then the sand is lifted from the doffing bin to the upper layer of the hood 10 by the lifting system. The lifting system unloads the sand onto the screening net 70. The sand is screened by the screening net 70, and the finer sand mass falls into the sand hanging bin 20 through the mesh of the screening net 70. The larger impurities and bonded sand mass are left on the screening net 70. Then, the sand mass left on the screening net 70 is discharged under the action of the impurity removal system to achieve the filtering operation. In the sand pouring operation, filtration has been achieved simultaneously. Of course, since impurities and sand mass will also be generated in the floating sand operation, they can also be filtered separately.
[0050] The utility model forms a floating sand mode in the sand hanging bin 20 through the cooperation of the sand hanging bin 20 and the gas pumping system 30, and the wax mold can perform floating sand hanging operations in the sand hanging bin 20; or a circulating sand showering mode and a sand body filtering mode can be formed through the sand hanging bin 20, the sand falling system, the lifting system, the screening net 70, and the impurity removal system, and the wax mold can perform sand showering and sand hanging operations in the sand hanging bin 20, and the sand body can also be filtered. The utility model can realize three modes of floating sand, sand showering, and filtering, ensure the cleanliness and fineness of the sand body, and guarantee the quality of sand hanging.
[0051] In some embodiments of the present utility model application, Figure 2 , 3 As shown in Figures 4 and 6, the impurity removal system includes a vibration device and an impurity removal device. The impurity removal device includes an impurity removal pipe 80 arranged on one side of the hood 10. The vibration device is a vibration motor 90, which is used to vibrate the screening net 70 so that the sand masses remaining on the screening net 70 are vibrated into the impurity removal pipe 80. As the screening net 70 vibrates, finer sand bodies fall from the mesh holes, and larger impurities and sticky sand masses roll into the impurity removal pipe 80.
[0052] In order to facilitate the impurities and the bonded sand mass to roll toward the impurity discharge pipe 80, as shown in FIG. Figure 2 , 3 As shown in , 4, and 6, in some embodiments of the present utility model application, a debris removal ramp 71 is provided on the side of the screening net 70, and the debris removal ramp 71 is inclined and connected to the upper end of the debris removal pipe 80. Impurities and bonded sand clumps roll toward the debris removal pipe 80 through the debris removal ramp 71.
[0053] In order to clean the sand bin 20, in some embodiments of the present utility model application, as Figure 2 , 3, 4, and 6, a sand storage system is also included, which is used to store the sand falling from the mesh of the screening net 70. Specifically, the sand storage system includes a sand storage bin 100 and a sand receiving plate 200; the sand storage bin 100 is arranged on both sides of the hood 10, and the bottom of the sand storage bin 100 is connected or closed with the sand hanging bin 20; the sand receiving plate 200 can extend to the bottom of the screening net 70 to receive the sand falling from the mesh of the screening net 70 and discharge it to the sand storage bin 100, or recover the sand falling from the mesh of the screening net 70 so that it falls directly into the sand hanging bin 20. When necessary, the bottom of the sand storage bin 100 is closed with the sand hanging bin 20, and the sand receiving plate 200 is extended (in normal sand pouring and filtering operations, the sand receiving plate 200 does not need to be extended), and then the sand body is lifted onto the screening net 70 by the lifting system. After screening, the finer sand body falls from the mesh to the sand receiving plate 200, so that the sand body flows to the sand storage bin 100. After all the sand bodies are stored in the sand storage bin 100, the sand hanging bin 20 can be cleaned. After the cleaning is completed, the bottom of the sand storage bin 100 is connected with the sand hanging bin 20, so that the sand body flows out into the sand hanging bin 20, and the sand receiving plate 200 is retracted.
[0054] In some embodiments of the present utility model application, Figure 2 , 3 As shown in , 4, a discharge port 300 is provided at the bottom of the sand storage bin 100, and the bottom of the sand storage bin 100 is connected with the sand hanging bin 20 through the discharge port 300. The discharge port 300 is inclined and its lower end is directly opposite to the sand hanging bin. After the connection, the sand body of the sand storage bin 100 is inclined downward into the sand hanging bin 20; a sealing plate 400 is provided at the discharge port 300, and a sealing cylinder 401 for controlling the sealing plate 400 to seal the discharge port 300 or expose the discharge port 300.
[0055] In some embodiments of the present utility model application, Figure 2 , 3 As shown in FIGS. 4 and 6 , the sand receiving plate 200 is in the shape of a roof which is high in the middle and low on both sides, and the two sides thereof are inclined from top to bottom toward the top of the sand storage bin 100; the sand receiving plate 200 is normally flat against the inner side of the rear wall of the hood 10, and a sand receiving cylinder 201 is connected to the sand receiving plate 200, and the sand receiving cylinder 201 can control the sand receiving plate 200 to extend outward and be flat under the screening net 70, or to retract and be flat.
[0056] In some embodiments of the present utility model application, Figure 5 As shown, the lifting system includes a front-end conveying device and a rear-end lifting device; the front-end conveying device includes a conveying screw 50 arranged in the sand falling bin 40, and the conveying screw 50 conveys the sand body in the sand falling bin 40 to the rear-end lifting device; the rear-end lifting device is a hoist 60.
[0057] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.
Claims
1. A sand-sprinkling and floating sand filtering structure, characterized in that: Included Hood (10); A sand hanging bin (20) is arranged at the bottom of the machine cover (10), wherein the sand hanging bin (20) contains sand material and can be used to place a wax model; A gas pumping system (30) is connected to the space inside the sand hanging bin (20) and can input compressed gas into the bin space to provide floating sand kinetic energy for the sand body; A sand falling system comprises a sand falling bin (40) and an isolation device, wherein the isolation device can close the connection between the sand hanging bin (20) and the sand falling bin (40), or open the sand hanging bin (20) and the sand falling bin (40) to allow sand to fall from the sand hanging bin (20) into the sand falling bin (40); A lifting system, which is used to lift the sand in the sand drop bin (40) from bottom to top to the upper layer of the machine cover (10); A screening net (70) is located on the upper layer of the machine cover (10) and is used to screen sand bodies and sand clumps. After the sand bodies are lifted to the upper layer of the machine cover (10), the lifting system unloads the sand bodies onto the screening net (70). The sand bodies fall downward from the meshes of the screening net (70), and the sand clumps remain on the screening net (70); The impurity removal system is used to remove the sand mass left on the screening net (70).
2. The sand-sprinkling and floating sand filtering structure according to claim 1, characterized in that: The impurity removal system comprises a vibration device and an impurity removal device. The impurity removal device comprises an impurity removal pipe (80) arranged on one side of the machine cover (10). The vibration device is used to vibrate the screening net (70) so that the sand mass left on the screening net (70) is vibrated into the impurity removal pipe (80).
3. The sand-sprinkling and floating sand filtering structure according to claim 2, characterized in that: A debris removal ramp (71) is provided on the side of the screening net (70), and the debris removal ramp (71) is arranged obliquely and communicated with the upper end of the debris removal pipe (80).
4. The sand-sprinkling and floating sand filtering structure according to claim 2, characterized in that: The vibration device is a vibration motor (90).
5. The sand-sprinkling and floating sand filtering structure according to claim 1, characterized in that: Also included is a sand storage system, which is used to store the sand falling downward from the mesh holes of the screening net (70).
6. The sand-sprinkling and floating sand filtering structure according to claim 5, characterized in that: The sand storage system comprises a sand storage bin (100) and a sand receiving plate (200); the sand storage bin (100) is arranged on both sides of the hood (10), and the bottom of the sand storage bin (100) is connected to or closed with the sand hanging bin (20); the sand receiving plate (200) can extend to the bottom of the screening net (70) to receive the sand falling downward from the mesh of the screening net (70) and discharge it to the sand storage bin (100), or recover the sand falling downward from the mesh of the screening net (70) so that it falls directly into the sand hanging bin (20).
7. The sand-sprinkling and floating sand filtering structure according to claim 6, characterized in that: A discharge port (300) is provided at the bottom of the sand storage bin (100), the discharge port (300) is arranged obliquely and its lower end is directly opposite to the sand storage bin (20); a sealing plate (400) is provided at the discharge port (300), and a sealing cylinder (401) for controlling the sealing plate (400) to seal the discharge port (300) or expose the discharge port.
8. The sand-sprinkling and floating sand filtering structure according to claim 6, characterized in that: The sand receiving plate (200) is in the shape of a roof with a high middle and low sides, and the two sides thereof are inclined from top to bottom toward the top of the sand storage bin (100); the sand receiving plate (200) is flatly attached to the inner side of the rear wall of the hood (10) in a normal state, and a sand receiving cylinder (201) is connected to the sand receiving plate (200), and the sand receiving cylinder (201) can control the sand receiving plate (200) to extend outward and be flatly attached below the screening net (70), or to retract and be flatly attached.
9. The sand-sprinkling and floating sand filtering structure according to claim 1, characterized in that: The lifting system comprises a front-end conveying device and a rear-end lifting device; the front-end conveying device comprises a conveying screw (50) arranged in a sand falling bin (40), and the conveying screw (50) conveys the sand body in the sand falling bin (40) to the rear-end lifting device; the rear-end lifting device is a hoist (60).