Multi-angle uniform sand spraying device for casting machining
The multi-angle uniform sand-spraying device for casting processing, with its multi-angle flipping and automatic material return design, solves the problems of uneven sand spraying and inconvenient material return, achieving an efficient and uniform sand spraying process and automatic material return, thereby improving casting quality and operational convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINZHOU CHUANGXIN AUTO PARTS MFG CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-12
AI Technical Summary
Existing sand-spraying equipment cannot guarantee the uniformity of sand spraying, resulting in uneven stress in the sand shell, which affects the quality of castings. Furthermore, it cannot return the material in a timely manner, increasing the difficulty of operation for workers.
The design incorporates multi-angle flipping and automatic material return. The drive motor and stepper motor drive the mounting plate and flipping plate to achieve multi-angle flipping and rotation of the casting wax pattern. Combined with the screw elevator, automatic material return is achieved, ensuring uniform coverage and timely recycling of molding sand.
It improves the uniformity and comprehensiveness of sand application, reduces manual operation, and increases work efficiency and ease of use.
Smart Images
Figure CN224222679U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting processing technology, and more specifically, to a multi-angle uniform sand-spraying device for casting processing. Background Technology
[0002] Castings are shaped metal objects obtained through various casting methods. Castings have a long history of application. In ancient times, people used castings to make various household items. In modern times, castings are mainly used as blanks for machine parts; some precision castings can also be used directly as machine parts. Castings account for a large proportion of mechanical products. The casting process requires first creating a wax model according to the desired shape, then using sandblasting equipment to create a sand shell on the surface of the wax model that matches its shape. After the sand shell is dried, wax is melted using a wax melting device, and then molten metal is poured into the sand shell. After cooling, the casting is formed.
[0003] A search revealed application number CN202010757633.2, entitled "A Uniform Sand-Wetting Device for Casting Processing." This application addresses the issue that traditional sand-wetting equipment is rudimentary and cannot guarantee uniform sand wetting. The quality of the sand shell directly affects the quality of the casting. Uneven sand wetting leads to uneven stress in the sand shell, which not only affects the casting quality during casting but can also cause serious production accidents. The proposed device uses a power mechanism on the main body to drive a moving gear along a fixed gear via a first connecting rod. The moving gear drives a slider within a moving slide rail, which in turn moves horizontally along a crossbeam driven by the slider. Indirectly, this causes the hopper to move horizontally along the crossbeam. The workpiece is placed on the work platform and pushed uniformly by a lead screw for unloading. The sand in the hopper can be evenly sprayed onto the workpiece. The feeding mechanism allows the sand to pass through a screen cylinder into the receiving box before use, and then into the discharge hopper through a feeding hose. The sand after screening is of uniform quality, effectively improving the quality of the finished product. However, this application cannot be vertically flipped during use, and the top surface of the workpiece will block the sides, making it difficult for the molding sand to completely cover the surface of the workpiece during sand spraying, affecting the uniformity and comprehensiveness of sand spraying. At the same time, excessively thick molding sand in some areas cannot be removed in time, resulting in uneven sand spraying. Further improvements can be made. In addition, this application is inconvenient for timely material return, requiring staff to collect and re-feed the material later, which is quite troublesome and can also be further improved.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a multi-angle uniform sand-spraying device for casting processing, which has the advantages of high working efficiency and ease of use, thereby solving the problems mentioned in the background technology.
[0006] To achieve the aforementioned advantages of high work efficiency and ease of use, the specific technical solution adopted by this utility model is as follows:
[0007] A multi-angle uniform sand-spraying device for casting processing includes a hopper and a collection hopper. The top surface of the collection hopper is fixedly mounted with a hopper, and a perforated plate is fixedly mounted on the top of the collection hopper. A mounting frame is fixedly mounted on the top surface of the perforated plate. A rotating disk is arranged between the mounting frames, and a drive motor is fixedly mounted on the bottom surface of the rotating disk. A mounting plate is mounted on the output end of the drive motor. A brake motor is fixedly mounted on one side surface of the mounting frame, and the output end of the brake motor is fixedly connected to the rotating disk through a main shaft. The main shaft passes through the mounting frame and is rotatably connected to the mounting frame. A bottom hole is opened on the bottom surface of the hopper, and a stepper motor is fixedly mounted on the top surface of the hopper. A rotating disk is fixedly connected to the output end of the stepper motor through a connecting shaft. A top hole is opened on the surface of the rotating disk corresponding to the position of the bottom hole, and the bottom surface of the rotating disk abuts against the bottom surface of the hopper.
[0008] Furthermore, the bottom surface of the collection bin is sloping, and a discharge pipe is connected through one side of the bottom surface of the collection bin. A screw elevator is installed on one side of the collection bin. The feed end of the screw elevator is connected through a hopper below the discharge pipe, and the discharge end of the screw elevator is connected through a return pipe to the bin.
[0009] Furthermore, the top surface of the hopper is provided with a feeding port, which is located on the other side of the stepper motor.
[0010] Furthermore, both the brake motor and the drive motor are fixedly mounted with motor housings on their outer sides, and the surface of the motor housings has heat dissipation holes with a diameter smaller than that of the molding sand particles.
[0011] Furthermore, the top hole and the bottom hole have the same diameter, and the distance between the top holes is greater than the diameter of the top hole.
[0012] Furthermore, the main shaft is rotatably connected to the mounting bracket via bearings, and the central axis of the main shaft intersects with the vertical central axis of the rotating disk.
[0013] Furthermore, the flip plate is arranged coaxially with the mounting plate, and the mounting plate is arranged coaxially with the drive motor.
[0014] Furthermore, the bottom holes and top holes are densely and evenly distributed in multiple sets.
[0015] Compared with the prior art, this utility model provides a multi-angle uniform sand-spraying device for casting processing, which has the following beneficial effects:
[0016] (1) This utility model adopts an installation plate and a flipping plate. When the casting wax model is sanded, the casting wax model can be fixed on the top surface of the installation plate. Then, the stepper motor can be started to drive the rotating plate to rotate, so that the top hole and the bottom hole are aligned. The molding sand in the hopper can fall onto the top surface of the casting wax model. During sanding, the drive motor drives the installation plate to rotate, which in turn drives the casting wax model to rotate, improving the uniformity of sanding. At the same time, the brake motor drives the main shaft to rotate, which drives the flipping plate to rotate 90°, which in turn drives the casting wax model to rotate 90°, and always maintains the rotation state, so that the molding sand is poured onto the side wall surface of the casting wax model, completing the uniform sanding. At the same time, when the casting wax model is rotated after being vertically flipped, the locally thick molding sand can also fall freely by gravity, which improves the uniformity and overall shape of the molding sand, thereby improving the sanding efficiency.
[0017] (2) This utility model adopts a screw elevator. The molding sand passes through the perforated plate and enters the collection bin. The bottom of the collection bin is inclined. The molding sand flows into the hopper along the discharge pipe. After being lifted by the screw elevator, it flows back to the bin along the return pipe, completing the automatic return collection. This eliminates the trouble of manual dumping and improves the convenience and efficiency of use. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a multi-angle uniform sand-spraying device for casting processing proposed in this utility model;
[0020] Figure 2 This is a front view of a multi-angle uniform sand-spraying device for casting processing proposed in this utility model;
[0021] Figure 3 This is an installation diagram of the installation disk proposed in this utility model;
[0022] Figure 4 This is a schematic diagram of the rotating disk proposed in this utility model.
[0023] In the picture:
[0024] 1. Hopper; 2. Collection bin; 3. Perforated plate; 4. Mounting frame; 5. Brake motor; 6. Tilting disc; 7. Main shaft; 8. Mounting disc; 9. Drive motor; 10. Stepper motor; 11. Rotating disc; 12. Top hole; 13. Feed port; 14. Bottom hole; 15. Screw elevator; 16. Discharge pipe; 17. Hopper; 18. Return pipe; 19. Motor housing; 20. Connecting shaft. Detailed Implementation
[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0026] According to an embodiment of the present invention, a multi-angle uniform sand-spraying device for casting processing is provided.
[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, a multi-angle uniform sand-spraying device for casting processing according to an embodiment of the present invention includes a hopper 1 and a collection hopper 2. The hopper 1 is fixedly installed on the top surface of the collection hopper 2, and a perforated plate 3 is fixedly installed on the top of the collection hopper 2. The perforated plate 3 serves as a bearing and does not affect the entry of molding sand into the collection hopper 2. A mounting frame 4 is fixedly installed on the top surface of the perforated plate 3. A rotating disk 6 is arranged between the mounting frames 4, and a drive motor 9 is fixedly installed on the bottom surface of the rotating disk 6. A mounting plate 8 is installed at the output end of the drive motor 9. A brake motor 5 is fixedly installed on one side surface of the mounting frame 4 to facilitate the positioning of the rotating disk 6. The output end of the brake motor 5 is fixedly connected to the rotating disk 6 through a main shaft 7, and the main shaft 7 passes through the mounting frame 4 and is rotatably connected to the mounting frame 4. A bottom hole 14 is opened on the bottom surface of the hopper 1, and a stepper motor 10 is fixedly installed on the top surface of the hopper 1. A rotating disk 11 is fixedly connected to the output end of the stepper motor 10 through a connecting shaft 20. The surface of the rotating disk 11 corresponds to the bottom hole. A top hole 12 is provided at position 14, and the bottom surface of the rotating disk 11 abuts against the bottom surface of the hopper 1. When the top hole 12 and the bottom hole 14 are completely misaligned, the molding sand will not flow out of the hopper 1. When applying sand to the casting wax model, the casting wax model can be fixed on the top surface of the mounting plate 8. Then, the stepper motor 10 can be started to drive the rotating disk 11 to rotate, so that the top hole 12 and the bottom hole 14 are aligned. The molding sand in the hopper 1 can then fall onto the top surface of the casting wax model. During sand application, the drive motor 9 drives the mounting plate 8. The rotation of the molded casting wax pattern improves the uniformity of sand application. Simultaneously, the brake motor 5 drives the main shaft 7 to rotate, causing the rotating disc 6 to rotate 90°, which in turn rotates the molded casting wax pattern 90°. The molded casting wax pattern remains in a rotating state, allowing the molding sand to be applied to the side wall surface of the molded casting wax pattern, achieving uniform sand application. At the same time, when the molded casting wax pattern rotates vertically, any excessively thick molding sand in some areas can fall freely under gravity, improving the uniformity and overall coverage of the molding sand application, thereby increasing the efficiency of the sand application process.
[0028] In one embodiment, the bottom surface of the collection bin 2 is inclined, and a discharge pipe 16 is connected through one side of the bottom surface of the collection bin 2. A screw elevator 15 is installed on one side of the collection bin 2. The feed end of the screw elevator 15 is connected through a hopper 17 below the discharge pipe 16, and the discharge end of the screw elevator 15 is connected through a return pipe 18 to the bin 1. Molding sand enters the collection bin 2 through the perforated plate 3. The bottom surface of the collection bin 2 is inclined, and the molding sand flows into the hopper 17 along the discharge pipe 16. After being lifted by the screw elevator 15, it flows back to the bin 1 along the return pipe 18, completing the automatic return collection, eliminating the trouble of manual dumping, and improving the convenience and work efficiency.
[0029] In one embodiment, a feeding port 13 is provided on the top surface of the silo 1, and the feeding port 13 is located on the other side of the stepper motor 10, which facilitates the replenishment of molding sand by the staff.
[0030] In one embodiment, a motor housing 19 is fixedly installed on the outside of both the brake motor 5 and the drive motor 9, and the surface of the motor housing 19 is provided with heat dissipation holes with a diameter smaller than that of the molding sand particles. The motor housing 19 serves to protect the brake motor 5 and the drive motor 9.
[0031] In one embodiment, the top hole 12 and the bottom hole 14 have the same diameter, and the distance between the top holes 12 is greater than the diameter of the top holes 12, so that the top holes 12 and the bottom holes 14 can be completely offset.
[0032] In one embodiment, the spindle 7 is rotatably connected to the mounting bracket 4 via a bearing, and the central axis of the spindle 7 intersects with the vertical central axis of the flip disk 6, thereby improving the flipping stability of the flip disk 6.
[0033] In one embodiment, the flip plate 6 is arranged coaxially with the mounting plate 8, and the mounting plate 8 is arranged coaxially with the drive motor 9, which improves the rotational stability of the mounting plate 8. The top surface of the mounting plate 8 is rough, and after the bottom of the casting wax model is melted, it abuts against the mounting plate 8. After cooling, it can be fixed on the top surface of the mounting plate 8, which is a common fixing method.
[0034] In one embodiment, multiple sets of bottom holes 14 and top holes 12 are densely and evenly distributed to improve the uniformity of molding sand flow.
[0035] Working principle:
[0036] When applying sand to the casting wax model, the wax model can be fixed on the top surface of the mounting plate 8. Then, the stepper motor 10 can be started to drive the rotating plate 11 to rotate, aligning the top hole 12 with the bottom hole 14. The molding sand in the hopper 1 can then fall onto the top surface of the casting wax model. During sand application, the drive motor 9 drives the mounting plate 8 to rotate, which in turn rotates the casting wax model, improving the uniformity of sand application. Simultaneously, the brake motor 5 drives the main shaft 7 to rotate, causing the tilting plate 6 to rotate 90°, which in turn rotates the casting wax model 90°, maintaining its rotational state to ensure the molding sand is applied to the casting wax model. The side wall surface is uniformly coated with sand. At the same time, when the casting wax model is rotated after being vertically flipped, any excessively thick molding sand in some areas can fall freely under gravity, which improves the uniformity and overall coverage of the molding sand coating, thereby improving the efficiency of the sand coating work. Meanwhile, the molding sand passes through the perforated plate 3 and enters the collection bin 2. The bottom of the collection bin 2 is inclined, and the molding sand flows into the hopper 17 along the discharge pipe 16. After being lifted by the screw elevator 15, it flows back to the bin 1 along the return pipe 18, completing the automatic return collection, eliminating the trouble of manual material dumping, and improving the convenience of use and work efficiency.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-angle uniform sand-spraying device for casting processing, characterized in that, The system includes a hopper (1) and a collection hopper (2). The hopper (1) is fixedly installed on the top surface of the collection hopper (2), and a perforated plate (3) is fixedly installed on the top of the collection hopper (2). A mounting frame (4) is fixedly installed on the top surface of the perforated plate (3). A tilting disc (6) is provided between the mounting frames (4), and a drive motor (9) is fixedly installed on the bottom surface of the tilting disc (6). A mounting plate (8) is installed at the output end of the drive motor (9). A brake motor (5) is fixedly installed on one side surface of the mounting frame (4), and the brake motor (5) outputs... The end is fixedly connected to the rotating disk (6) via the main shaft (7), and the main shaft (7) passes through the mounting frame (4) and is rotatably connected to the mounting frame (4). The bottom surface of the hopper (1) is provided with a bottom hole (14), and a stepper motor (10) is fixedly installed on the top surface of the hopper (1). The output end of the stepper motor (10) is fixedly connected to the rotating disk (11) via the connecting shaft (20). The surface of the rotating disk (11) is provided with a top hole (12) corresponding to the bottom hole (14), and the bottom surface of the rotating disk (11) abuts against the bottom surface of the hopper (1).
2. The multi-angle uniform sand-spraying device for casting processing according to claim 1, characterized in that, The bottom surface of the collection bin (2) is inclined, and a discharge pipe (16) is connected through one side of the bottom of the collection bin (2). A screw elevator (15) is installed on one side of the collection bin (2). The feed end of the screw elevator (15) is connected through a hopper (17) below the discharge pipe (16), and the discharge end of the screw elevator (15) is connected through a return pipe (18) to the silo (1).
3. The multi-angle uniform sand-spraying device for casting processing according to claim 1, characterized in that, The top surface of the hopper (1) is provided with a feeding port (13), and the feeding port (13) is located on the other side of the stepper motor (10).
4. The multi-angle uniform sand-spraying device for casting processing according to claim 1, characterized in that, Both the brake motor (5) and the drive motor (9) are fixedly mounted with motor housings (19) on their outer sides, and the surface of the motor housings (19) is provided with heat dissipation holes with a diameter smaller than that of the molding sand particles.
5. The multi-angle uniform sand-spraying device for casting processing according to claim 1, characterized in that, The top hole (12) and the bottom hole (14) have the same diameter, and the distance between the top holes (12) is greater than the diameter of the top hole (12).
6. The multi-angle uniform sand-spraying device for casting processing according to claim 1, characterized in that, The main shaft (7) is rotatably connected to the mounting bracket (4) via bearings, and the central axis of the main shaft (7) intersects with the vertical central axis of the rotating disk (6).
7. The multi-angle uniform sand-spraying device for casting processing according to claim 1, characterized in that, The flip plate (6) is arranged coaxially with the mounting plate (8), and the mounting plate (8) is arranged coaxially with the drive motor (9).
8. The multi-angle uniform sand-spraying device for casting processing according to claim 1, characterized in that, The bottom hole (14) and top hole (12) are densely and evenly distributed in multiple sets.