Evaporative pattern stripping device
By combining rotation and vibration mechanisms, automated limiting and vibration demolding of the lost foam casting sand box are achieved, solving the problems of casting damage and low efficiency caused by manual hammering, and improving production efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 洛阳顺华重工有限公司
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing lost foam casting methods mainly rely on manual hammering, which leads to damage to the castings, low production efficiency, and ineffective positioning and fixing, thus affecting the casting release effect.
A rotating mechanism drives a sliding mechanism for limiting and fixing, and a vibration mechanism is used for demolding. Automated demolding is achieved by combining a servo motor and a vibration motor.
It improves demolding efficiency, reduces casting damage, lowers worker labor intensity, and achieves a stable and efficient automatic demolding process.
Smart Images
Figure CN224444567U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of demolding devices, specifically a lost foam demolding device. Background Technology
[0002] Lost foam casting is a novel casting method that involves bonding and assembling foam models similar in size and shape to the casting into a model cluster, coating them with refractory paint and drying them, then embedding them in dry quartz sand and vibrating them to shape them. Under negative pressure, the foam is poured in, causing the model to vaporize, the liquid metal to occupy the model's position, and after solidification and cooling, the casting is formed.
[0003] The existing demolding methods are mainly manual, which involves manually striking the casting to generate vibrations that separate the casting from the mold. This method not only easily damages the casting but also takes up a lot of time, easily fatigues workers, and has low production efficiency. Furthermore, existing demolding machines cannot limit and fix the position during the demolding process, which affects the demolding effect.
[0004] Based on this, a lost foam casting release device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content
[0005] The purpose of this utility model is to provide a lost foam casting release device to solve the problem that the existing casting release methods in the background technology are mainly manual operations, which involve manually striking the casting to generate vibrations that separate the casting from the mold. This method not only easily damages the casting, but also takes up a lot of time, easily fatigues workers, and has low production efficiency. Furthermore, the existing casting machines cannot limit and fix the casting during the casting process, which affects the casting effect.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A lost foam casting release device includes a base, a bottom plate on top of the base, the bottom plate and the base being fixedly connected by several springs, a frame on the bottom plate, a movable groove on the surface of the bottom plate, a rotating mechanism within the movable groove, symmetrical sliding mechanisms on both sides of the frame within the movable groove, limit mechanisms on the top of the sliding mechanisms on both sides of the frame, and a vibration mechanism on the base above the frame.
[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0009] In one alternative: baffles are provided on both sides of the top of the frame, and slots are provided on the inner side of the baffles.
[0010] In one alternative: the rotating mechanism includes a bidirectional screw, one end of which is rotatably connected to the inner wall of the movable groove, and the other end of which is fixedly connected to the output end of a servo motor on the outer side of the base plate.
[0011] In one alternative: the sliding mechanism includes a movable block, which is located in a movable groove and is rotatably connected to a bidirectional screw. A second fixed seat is provided on the movable block, and a second connecting shaft is provided in the second fixed seat.
[0012] In one alternative: the limiting mechanism includes a limiting plate, the bottom end of which is rotatably connected to both sides of the top of the frame, a first fixed seat is provided on the outside of the limiting plate, a first connecting shaft is provided inside the first fixed seat, a connecting rod is provided between the first connecting shaft and the second connecting shaft, and the top end of the connecting rod is rotatably connected to the first connecting shaft, and the bottom end of the connecting rod is rotatably connected to the second connecting shaft.
[0013] In one alternative embodiment: the vibration mechanism includes a side plate located on a base, a top plate located at the top of the side plate, an electric push rod located on the top plate, a vibration motor located at the output end of the electric push rod, a vibration plate located at the output end of the vibration motor, and the vibration plate located above the frame.
[0014] In one alternative: a storage drawer is slidably connected to one side of the frame, and a handle is provided on the outside of the storage drawer.
[0015] In one alternative: the base has several support legs at its bottom, and the bottom of each support leg has an anti-slip pad.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This utility model uses a rotating mechanism to drive a sliding mechanism to move laterally synchronously, thereby opening and closing the limiting mechanism. When closed, it limits and fixes the lost foam casting sand box above the frame, making the lost foam casting sand box more stable and facilitating demolding. The vibration mechanism can vibrate the lost foam casting sand box, causing the castings inside to be shaken out of the lost foam casting sand box, improving demolding efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of one side of this utility model.
[0019] Figure 2 This is a schematic diagram of the overall structure of the other side of this utility model.
[0020] Figure 3 This is a schematic diagram of the internal structure of the movable groove of this utility model.
[0021] Figure 4 This is a schematic diagram of the frame structure of this utility model.
[0022] Figure reference numerals: 1. Base; 2. Support leg; 3. Anti-slip pad; 4. Base plate; 5. Spring; 6. Frame; 7. Movable groove; 8. Bidirectional screw; 9. Servo motor; 10. Baffle; 11. Slot; 12. Limiting plate; 13. First fixed seat; 14. Moving block; 15. Second fixed seat; 16. Connecting rod; 17. First connecting shaft; 18. Second connecting shaft; 19. Storage drawer; 20. Handle; 21. Side plate; 22. Top plate; 23. Electric push rod; 24. Vibration motor; 25. Vibration plate. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] In one embodiment, such as Figures 1-4 As shown, a lost foam casting demolding device includes a base 1, a base plate 4 on top of the base 1, and a fixed connection between the base plate 4 and the base 1 by several springs 5. A frame 6 is provided on the base plate 4, and a movable groove 7 is provided on the surface of the base plate 4. A rotating mechanism is provided in the movable groove 7, and symmetrical sliding mechanisms are provided on both sides of the frame 6 in the movable groove 7. Limiting mechanisms are provided on the top of the sliding mechanisms on both sides of the frame 6. A vibration mechanism is provided on the base 1 above the frame 6. The rotating mechanism can drive the sliding mechanism to move laterally synchronously, thereby opening and closing the limiting mechanisms. When closed, it limits and fixes the lost foam casting sand box above the frame 6, making the lost foam casting sand box more stable and facilitating demolding. The vibration mechanism can vibrate the lost foam casting sand box, causing the castings inside to be shaken out of the lost foam casting sand box, improving demolding efficiency.
[0025] In one embodiment, such as Figure 1 and Figure 3 As shown, baffles 10 are provided on both sides of the top of the frame 6, and slots 11 are provided on the inner side of the baffles 10, so that the lost foam casting sand box can be inverted and placed in the slots 11.
[0026] In one embodiment, such as Figure 3 As shown, the rotating mechanism includes a bidirectional screw 8. One end of the bidirectional screw 8 is rotatably connected to the inner wall of the movable groove 7, and the other end of the bidirectional screw 8 is fixedly connected to the output end of the servo motor 9 on the outer side of the base plate 4. Starting the servo motor 9 can drive the bidirectional screw 8 to rotate.
[0027] In one embodiment, such as Figure 3As shown, the sliding mechanism includes a movable block 14, which is located in the movable groove 7 and is threadedly connected to the bidirectional screw 8. A second fixed seat 15 is provided on the movable block 14, and a second connecting shaft 18 is provided in the second fixed seat 15. During the rotation of the bidirectional screw 8, the movable block 14 is driven to move synchronously relative to the screw.
[0028] In one embodiment, such as Figure 3 As shown, the limiting mechanism includes a limiting plate 12. The bottom end of the limiting plate 12 is rotatably connected to the top two sides of the frame 6. A first fixed seat 13 is provided on the outside of the limiting plate 12. A first connecting shaft 17 is provided inside the first fixed seat 13. A connecting rod 16 is provided between the first connecting shaft 17 and the second connecting shaft 18. The top end of the connecting rod 16 is rotatably connected to the first connecting shaft 17, and the bottom end of the connecting rod 16 is rotatably connected to the second connecting shaft 18. The limiting plate 12 can rotate freely. During the lateral movement of the moving block 14, the limiting plate 12 is rotated to open and close. When closed, the lost foam casting sand box in the slot 11 can be fixed.
[0029] In one embodiment, such as Figure 2 As shown, the vibration mechanism includes a side plate 21, which is located on the base 1. A top plate 22 is provided at the top of the side plate 21, and an electric push rod 23 is provided on the top plate 22. A vibration motor 24 is provided at the output end of the electric push rod 23, and a vibration plate 25 is provided at the output end of the vibration motor 24. The vibration plate 25 is located above the frame 6. When the electric push rod 23 is started, the vibration plate 25 can be driven to contact the bottom surface of the lost foam casting sand box. When the vibration motor 24 is started, the vibration plate 25 is driven to vibrate the lost foam casting sand box, causing the castings inside to be shaken out of the lost foam casting sand box.
[0030] In one embodiment, such as Figure 1 As shown, a storage drawer 19 is slidably connected to one side of the frame 6, and a handle 20 is provided on the outside of the storage drawer 19. The demolded casting enters the storage drawer 19 for storage.
[0031] In one embodiment, such as Figure 1 As shown, the base 1 has several support legs 2 at its bottom, and the bottom of the support legs 2 is provided with anti-slip pads 3, which makes the base 1 more stable.
[0032] Working principle: In use, the lost foam casting sand box is inverted in the slot 11. Starting the servo motor 9 drives the bidirectional screw 8 to rotate. During the rotation of the bidirectional screw 8, the moving block 14 moves synchronously relative to it. During the lateral movement of the moving block 14, the limiting plate 12 is flipped, opening and closing. When closed, the lost foam casting sand box in the slot 11 is fixed, making the lost foam casting sand box more stable and facilitating demolding. Starting the electric push rod 23 drives the vibrating plate 25 to contact the bottom surface of the lost foam casting sand box. Starting the vibration motor 24 drives the vibrating plate 25 to vibrate the lost foam casting sand box. Through cooperation with the spring 5, the vibration effect is improved, causing the casting inside to be shaken out of the lost foam casting sand box. The demolded casting enters the storage drawer 19 for storage, avoiding manual demolding and improving production efficiency.
Claims
1. An expendable pattern stripping device comprising a base (1), characterised in that, A base plate (4) is provided above the base (1). The base plate (4) and the base (1) are fixedly connected by several springs (5). A frame (6) is provided on the base plate (4). An movable groove (7) is provided on the surface of the base plate (4). A rotating mechanism is provided in the movable groove (7). Symmetrical sliding mechanisms are provided on both sides of the frame (6) in the movable groove (7). A limit mechanism is provided on the top of the sliding mechanism on both sides of the frame (6). A vibration mechanism is provided on the base (1) above the frame (6).
2. The lost foam mold stripping apparatus of claim 1, wherein, The top two sides of the frame (6) are provided with baffles (10), and the inner side of the baffles (10) is provided with slots (11).
3. The lost foam mold stripping apparatus of claim 1 wherein, The rotating mechanism includes a bidirectional screw (8), one end of which is rotatably connected to the inner wall of the movable groove (7), and the other end of which is fixedly connected to the output end of the servo motor (9) on the outside of the base plate (4).
4. The lost foam mold stripping apparatus of claim 3, wherein, The sliding mechanism includes a movable block (14), which is located in the movable groove (7) and is rotatably connected to the bidirectional screw (8). A second fixed seat (15) is provided on the movable block (14), and a second connecting shaft (18) is provided in the second fixed seat (15).
5. The lost foam mold stripping apparatus of claim 4, wherein, The limiting mechanism includes a limiting plate (12), the bottom end of the limiting plate (12) is rotatably connected to the top two sides of the frame (6), a first fixed seat (13) is provided on the outside of the limiting plate (12), a first connecting shaft (17) is provided in the first fixed seat (13), a connecting rod (16) is provided between the first connecting shaft (17) and the second connecting shaft (18), and the top end of the connecting rod (16) is rotatably connected to the first connecting shaft (17), and the bottom end of the connecting rod (16) is rotatably connected to the second connecting shaft (18).
6. The lost foam mold stripping apparatus of claim 1 wherein, The vibration mechanism includes a side plate (21), which is located on the base (1). A top plate (22) is provided at the top of the side plate (21). An electric push rod (23) is provided on the top plate (22). A vibration motor (24) is provided at the output end of the electric push rod (23). A vibration plate (25) is provided at the output end of the vibration motor (24), and the vibration plate (25) is located above the frame (6).
7. The lost foam mold stripping apparatus of claim 1 wherein, A storage drawer (19) is slidably connected to one side of the frame (6), and a handle (20) is provided on the outside of the storage drawer (19).
8. The lost foam mold stripping apparatus of claim 1 wherein, The base (1) has several support legs (2) at its bottom, and the bottom of the support legs (2) has an anti-slip pad (3).