Automatic recycling device for casting sand mold surplus sand
Patent Information
- Application Number
- CN202522543875.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-01
AI Technical Summary
In existing technologies, the fixed setting of the filter screen in the vibratory sand removal operation results in poor filtration effect and lacks the function of left and right shaking, which affects the efficiency of residual sand separation.
An automatic sand recovery device for casting sand molds was designed. The device is driven to vibrate by a vibration motor, and the filter screen is driven to shake regularly by a moving component. Combined with a U-shaped base and rotating column structure, the filter screen is easy to disassemble and replace, thus realizing the automatic recovery of residual sand.
It improves the thoroughness and speed of residual sand separation, reduces maintenance time and labor costs, realizes the fully automated processing of residual sand from separation to collection, and enhances the continuity and convenience of operations.
Smart Images
Figure CN224926997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic recovery and measurement technology of residual sand in casting molds, and in particular to an automatic recovery device for residual sand in casting molds. Background Technology
[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron, and most non-ferrous alloy castings can be obtained using sand casting. Because the molding materials used in sand casting are inexpensive and readily available, and the mold making is simple, it is suitable for single-piece production, batch production, and mass production of castings, and has long been a basic process in casting production.
[0003] In the crucial transition process from "sand mold forming" to "casting cleaning" in sand casting, the vibrating shakeout machine is an irreplaceable core piece of equipment. Once the completed casting, along with the sand mold and core sand, is transferred from the pouring station to the cleaning area, it immediately begins operation: the high-frequency vibration generated by the excitation system first breaks down the solidified structure of the sand mold and core sand, causing the sand that originally enveloped the casting to disintegrate. Then, the vibration inertia allows the loose sand particles to naturally separate from the casting. During this separation process, the disintegrated old sand falls through the grid screen at the bottom of the equipment into the conveying channel below, simultaneously completing the initial collection of the old sand.
[0004] Although the above technologies achieve the separation of sand mold and core sand, in actual vibration sand removal operations, the filter screen is mostly fixed and lacks the function of swaying left and right, resulting in poor filtration effect. Therefore, an automatic sand recovery device for casting sand mold is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an automatic sand recovery device for casting sand molds, which aims to solve the problem that in the actual vibration sand removal operation of the prior art, the filter screen is mostly fixed and lacks the function of swaying left and right, resulting in poor filtration effect.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic sand recovery device for casting sand molds, comprising a support frame, a vibration motor fixedly connected to the top of the support frame, a bottom frame fixedly connected to the top of the support frame, a movable component provided on the outer wall of the bottom frame, a sand recovery box slidably connected inside the bottom frame, a slide rail fixedly connected to the top of the bottom frame, a shaking and disassembly component provided inside the slide rail, a filter screen provided on the top of the slide rail, and sand casting placed on the top of the filter screen; the shaking and disassembly component includes a vertical plate, a rotating shaft fixedly connected to the outer wall of the vertical plate, a ball rotatably connected to the outer wall of the rotating shaft, U-shaped bases fixedly connected to both ends of the outer wall of the slide rail, a baffle rotatably connected inside the U-shaped base, and a rotating column fixedly connected inside the baffle.
[0007] As a further description of the above technical solution:
[0008] The outer wall of the rotating column is rotatably connected to the inside of the U-shaped base.
[0009] As a further description of the above technical solution:
[0010] The uprights are provided in two sets, and the two sets of uprights are distributed in a mirror image along the central axis of the slide rail. The top of the uprights is fixedly connected to the bottom of the slide rail.
[0011] As a further description of the above technical solution:
[0012] The spheres are arranged in two sets, and the two sets of spheres are mirror-distributed along the central axis of the slide rail.
[0013] As a further description of the above technical solution:
[0014] The moving component includes a motor, the output shaft of which is fixedly connected to a transmission wheel, a crossbar is fixedly connected inside the transmission wheel, a rotating rod is fixedly connected to the outer wall of the crossbar, a support plate is fixedly connected to the outer wall of the base frame, and holes are formed in the outer wall of the slide rail.
[0015] As a further description of the above technical solution:
[0016] The bottom of the motor is fixedly connected to the top of the support plate, and the outer wall of the crossbar is rotatably connected to the inside of the hole.
[0017] As a further description of the above technical solution:
[0018] The transmission wheel is provided in two sets, and the two sets of transmission wheels are connected by a synchronous belt. The rear wall of the transmission wheel is attached to the outer wall of the slide rail.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the rotating rod is attached to the bottom of the filter screen, and the outer wall of the rotating rod is rotatably connected to the inside of the bottom frame.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by setting a vibration motor, a motor, and a ball, the vibration motor drives the entire device to vibrate, which can quickly cause the residual sand on the surface of the sand casting to fall off; at the same time, the moving component drives the filter screen to produce regular shaking, which can effectively prevent the residual sand from clogging the filter screen mesh and ensure that the residual sand continuously falls into the recycling box through the mesh. Compared with the single vibration method, the separation is more thorough and the processing speed is faster.
[0023] 2. In this utility model, by setting a U-shaped base, rotating column and baffle, the filter screen can be removed by rotating the baffle without complicated disassembly steps, which reduces maintenance time and labor costs. The residual sand recovery box can slide in the bottom frame and can be directly pulled out for cleaning when the box is full. It realizes the fully automated processing of residual sand from separation to collection, reduces manual intervention, and improves the continuity and convenience of the overall operation. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of an automatic sand recovery device for casting sand molds proposed in this utility model.
[0025] Figure 2 This is a schematic diagram of the shaking and disassembly components of an automatic sand recovery device for casting sand molds proposed in this utility model.
[0026] Figure 3 This utility model proposes an automatic sand recovery device for foundry sand molds. Figure 2 Enlarged structural diagram of point A in the middle;
[0027] Figure 4 This is a schematic diagram of the moving component of an automatic sand recovery device for casting molds proposed in this utility model;
[0028] Figure 5 This utility model proposes an automatic sand recovery device for foundry sand molds. Figure 4 A magnified structural diagram of point B in the middle.
[0029] Legend:
[0030] 1. Bracket; 2. Vibration motor; 3. Moving assembly; 31. Motor; 32. Support plate; 33. Rotating rod; 34. Crossbar; 35. Drive wheel; 36. Synchronous belt; 4. Base frame; 5. Excess sand recovery box; 6. Filter screen; 7. Sand casting; 8. Slide rail; 9. Shaking and disassembly assembly; 91. Vertical plate; 92. Rotating shaft; 93. Sphere; 94. U-shaped base; 95. Rotating column; 96. Baffle; 10. Hole. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figures 1-3This utility model provides an embodiment of an automatic sand recovery device for casting sand molds, comprising a support 1, a vibration motor 2 fixedly connected to the top of the support 1, the vibration motor 2 providing the vibration power required by the device, and its vibration frequency being flexibly adjustable according to the residual sand adhesion of the sand casting 7, a bottom frame 4 fixedly connected to the top of the support 1, a moving component 3 provided on the outer wall of the bottom frame 4, and a residual sand recovery box 5 slidably connected inside the bottom frame 4, the residual sand recovery box 5 collecting residual sand falling from the filter screen 6, the top opening design of the box maximizing the collection of residual sand, a slide rail 8 fixedly connected to the top of the bottom frame 4, the slide rail 8 providing guidance for the movement of the filter screen 6, its inner wall fitting tightly with the bottom of the filter screen 6 to prevent shaking and displacement, a shaking and disassembly component 9 provided inside the slide rail 8, and a filter screen 6 provided on the top of the slide rail 8, the filter screen 6 filtering the residual sand falling off the surface of the sand casting 7, the mesh size being precisely designed according to the diameter of the residual sand particles, the sand casting 7 placed on the top of the filter screen 6, the vibration motor 2 starting and driving the support 1 and the entire device to vibrate. The sand casting 7 is placed on the filter screen 6. Under the action of vibration, the excess sand on the surface of the sand casting 7 falls off and falls into the excess sand recovery box 5 below through the mesh of the filter screen 6.
[0033] The shaking and disassembly assembly 9 includes a vertical plate 91, which can move a ball 93 along with the filter screen 6. The vertical plate 91 is welded to the bottom of the filter screen 6 to ensure a stable connection. A rotating shaft 92 is fixedly connected to the outer wall of the vertical plate 91, and the ball 93 is rotatably connected to the outer wall of the rotating shaft 92. The ball 93 can roll within the bottom frame 4 to assist the shaking of the filter screen 6. It is made of wear-resistant material to reduce wear. U-shaped bases 94 are fixedly connected to both ends of the outer wall of the slide rail 8. The U-shaped bases 94 provide installation positions for the baffle 96 and are bolted to the slide rail 8 for easy maintenance. The baffle 96 is rotatably connected inside the U-shaped base 94, and the baffle 96 can adjust the filter screen 6. The baffle 96 is designed to be closed, tightly fitting against the side of the filter screen 6 to prevent it from slipping out during movement. A rotating column 95 is fixedly connected inside the baffle 96, and the outer wall of the rotating column 95 is rotatably connected to the inside of the U-shaped base 94. The upright plate 91 at the bottom of the filter screen 6 moves synchronously with the filter screen 6, and the ball 93 on the upright plate 91 rolls within the bottom frame 4. Combined with the guiding action of the slide rail 8, this causes the filter screen 6 to shake regularly, enhancing the residual sand separation effect. When cleaning or replacing the filter screen 6, the baffle 96 on the U-shaped base 94 can be rotated, causing the baffle 96 to rotate around the rotating column 95 and disengage from the limiting position on the filter screen 6, allowing the filter screen 6 to be removed from the slide rail 8. The operation is convenient. The residual sand recovery box 5 can slide within the bottom frame 4, facilitating removal and cleaning when full, achieving automated recycling of residual sand.
[0034] Reference Figures 3-5Two sets of upright plates 91 are provided, mirror-distributed along the central axis of the slide rail 8. The top of the upright plates 91 is fixedly connected to the bottom of the slide rail 8 to ensure a firm connection between the upright plates 91 and the slide rail 8. The connection parts are reinforced to prevent breakage. Two sets of spheres 93 are provided, mirror-distributed along the central axis of the slide rail 8. The moving component 3 includes a motor 31. The output shaft of the motor 31 is fixedly connected to a transmission wheel 35, which can transmit the power of the motor 31. The surface of the wheel teeth is hardened to improve wear resistance. A crossbar 34 is fixedly connected inside the transmission wheel 35, which can drive the rotating rod 33 to rotate. It is made of solid steel to ensure load-bearing capacity. A rotating rod 33 with anti-slip protrusions is fixedly connected to the outer wall of the crossbar 34. A support plate 32 is fixedly connected to the outer wall of the bottom frame 4. Holes 10 are opened on the outer wall of the slide rail 8. The hole 10 provides space for the rotation of the crossbar 34. The hole diameter is slightly larger than the diameter of the crossbar 34 to avoid friction. The bottom of the motor 31 is fixedly connected to the top of the support plate 32. The outer wall of the crossbar 34 is rotatably connected to the inside of the hole 10. Two sets of transmission wheels 35 are provided, and the two sets of transmission wheels 35 are connected by a synchronous belt 36. The two sets of transmission wheels 35 rotate synchronously. The synchronous belt 36 is made of elastic material to ensure transmission accuracy. The rear wall of the transmission wheel 35 is attached to the outer wall of the slide rail 8. The outer wall of the rotating rod 33 is attached to the bottom of the filter screen 6. The rotating rod 33 pushes the filter screen 6. The attachment force is moderate to avoid damaging the filter screen 6. The outer wall of the rotating rod 33 is rotatably connected to the inside of the bottom frame 4. The moving component 3 starts to work. The motor 31 drives the transmission wheel 35 to rotate. The two sets of transmission wheels 35 achieve synchronous movement through the synchronous belt 36, thereby driving the crossbar 34 and the rotating rod 33 to rotate. During the rotation, the rotating rod 33 contacts the bottom of the filter screen 6, pushing the filter screen 6 to move on the slide rail 8.
[0035] Working principle: During use, the vibration motor 2 starts and drives the bracket 1 and the entire device to vibrate. The sand casting 7 is placed on the filter screen 6. Under the action of vibration, the residual sand on the surface of the sand casting 7 falls off and falls into the residual sand recovery box 5 below through the mesh of the filter screen 6. The moving component 3 starts to work. The motor 31 drives the transmission wheel 35 to rotate. The two sets of transmission wheels 35 achieve synchronous movement through the synchronous belt 36, which in turn drives the crossbar 34 and the rotating rod 33 to rotate. During the rotation, the rotating rod 33 contacts the bottom of the filter screen 6, pushing the filter screen 6 to move on the slide rail 8. During this process, the upright plate 91 at the bottom of the filter screen 6 moves synchronously with the filter screen 6, and the ball 93 on the upright plate 91 rolls within the bottom frame 4. Combined with the guiding action of the slide rail 8, this causes the filter screen 6 to vibrate regularly, enhancing the residual sand separation effect. When it is necessary to clean or replace the filter screen 6, the baffle 96 on the U-shaped base 94 can be rotated, causing the baffle 96 to rotate around the rotating column 95 and disengage from the limiting position on the filter screen 6, allowing the filter screen 6 to be removed from the slide rail 8. The operation is convenient. The residual sand recovery box 5 can slide within the bottom frame 4, facilitating removal and cleaning when full, achieving automated recycling of residual sand.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An automatic sand recovery device for casting molds, comprising a support frame (1), characterized in that: The top of the bracket (1) is fixedly connected to a vibration motor (2), the top of the bracket (1) is fixedly connected to a bottom frame (4), the outer wall of the bottom frame (4) is provided with a moving component (3), the inside of the bottom frame (4) is slidably connected to a residual sand recovery box (5), the top of the bottom frame (4) is fixedly connected to a slide rail (8), the inside of the slide rail (8) is provided with a shaking and disassembly component (9), the top of the slide rail (8) is provided with a filter screen (6), the top of the filter screen (6) is placed with a sand casting (7); the shaking and disassembly component (9) includes a vertical plate (91), the outer wall of the vertical plate (91) is fixedly connected to a rotating shaft (92), the outer wall of the rotating shaft (92) is rotatably connected to a ball (93), the two ends of the outer wall of the slide rail (8) are fixedly connected to a U-shaped base (94), the inside of the U-shaped base (94) is rotatably connected to a baffle (96), and the inside of the baffle (96) is fixedly connected to a rotating column (95).
2. The automatic sand recovery device for foundry sand molds according to claim 1, characterized in that: The outer wall of the rotating column (95) is rotatably connected to the inside of the U-shaped base (94).
3. The automatic sand recovery device for foundry sand molds according to claim 1, characterized in that: The upright plate (91) is provided in two sets, and the two sets of upright plates (91) are mirror-distributed along the central axis of the slide rail (8). The top of the upright plate (91) is fixedly connected to the bottom of the slide rail (8).
4. The automatic sand recovery device for foundry sand molds according to claim 1, characterized in that: The spheres (93) are provided in two sets, and the two sets of spheres (93) are mirror-distributed along the central axis of the slide rail (8).
5. The automatic sand recovery device for foundry sand molds according to claim 1, characterized in that: The moving component (3) includes a motor (31), the output shaft of the motor (31) is fixedly connected to a transmission wheel (35), the inside of the transmission wheel (35) is fixedly connected to a crossbar (34), the outer wall of the crossbar (34) is fixedly connected to a rotating rod (33), the outer wall of the bottom frame (4) is fixedly connected to a support plate (32), and the outer wall of the slide rail (8) is provided with a hole (10).
6. The automatic sand recovery device for foundry sand molds according to claim 5, characterized in that: The bottom of the motor (31) is fixedly connected to the top of the support plate (32), and the outer wall of the crossbar (34) is rotatably connected to the inside of the hole (10).
7. The automatic sand recovery device for foundry sand molds according to claim 5, characterized in that: The transmission wheel (35) is provided in two sets, and the two sets of transmission wheels (35) are connected by a synchronous belt (36). The rear wall of the transmission wheel (35) is attached to the outer wall of the slide rail (8).
8. The automatic sand recovery device for foundry sand molds according to claim 5, characterized in that: The outer wall of the rotating rod (33) is attached to the bottom of the filter screen (6), and the outer wall of the rotating rod (33) is rotatably connected to the inside of the bottom frame (4).