Engine cylinder body casting material post-molding powder screening device
By designing a powder screening device with a turntable and a motor-driven dispersing frame, the problem of low discharge efficiency of existing devices was solved, and rapid screening and dispersing of powder was achieved, thereby improving casting quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGZHOU SHENGTE MACHINERY CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-07
AI Technical Summary
Existing sand screening devices are inefficient during the discharge process, failing to quickly discharge the material from the bottom of the mixing tank, thus affecting processing efficiency.
A powder screening device was designed after the engine cylinder block castable refractory was formed. The device uses a mounting rod to drive the movement of the turntable and connecting rod, which causes the feeding frame to vibrate up and down. Combined with a motor-driven dispersing frame and a synchronous belt system, the device enables rapid screening and dispersing of the powder.
It improves the screening efficiency of powder, avoids agglomeration, reduces energy consumption, ensures the uniformity and particle size of powder, and improves casting quality.
Smart Images

Figure CN224599857U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of powder screening devices, specifically a powder screening device for engine cylinder block casting material after molding. Background Technology
[0002] The powder screening device after the engine block castable is used to screen the powder components in the castable. Specifically, the castable usually contains different types of powder, such as sand and clay, which are mixed during the casting process and used to form castings such as engine blocks. After the casting process is completed, the powder in the castable may aggregate, clump, or settle due to heating, use, or storage, requiring screening to ensure the uniformity and particle size of the powder for further processing or to improve casting quality. An existing sand screening device (publication number: CN220697396U) has the following disadvantages in use:
[0003] During use, the material is fed into the mixing tank through the feed pipe, and the material in the mixing tank is dispersed by the stirring rod. Since the discharge port is located on the bottom side of the mixing tank, the material needs to move from the mixing tank to the discharge port by its own flow and the stirring rod. It cannot be discharged quickly from the discharge port at the bottom of the mixing tank, thus affecting the processing efficiency. To solve the above problems, this patent proposes a powder screening device after the engine cylinder block casting material is formed. Utility Model Content
[0004] The purpose of this invention is to provide a powder screening device after the engine block casting material is formed, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a powder screening device for engine cylinder block castable after molding, comprising a screening box, a feeding hopper fixedly connected to the top of the screening box, a dispersing box fixedly connected to the bottom of the feeding hopper, a discharging frame slidably connected to the bottom of the dispersing box, a first mounting plate and a second mounting plate fixedly fixed inside the screening box, a screening barrel rotatably connected between the first mounting plate and the second mounting plate, the discharging frame located inside one side of the screening barrel, a fixing frame fixed to the inner wall of the screening box, an mounting rod rotatably connected through the fixing frame, a turntable fixed to one side of the mounting rod, the turntable rotatably connected to the fixing frame, a first connecting rod rotatably connected to one side of the turntable, a limiting frame fixed inside the screening box, a second connecting rod slidably connected through the limiting frame, the first connecting rod and the second connecting rod rotatably connected, a striking element fixed to the top of the second connecting rod, and a connecting block fixed to the bottom of the discharging frame.
[0006] Preferably, a rotating rod is rotatably connected inside the disintegration box, a disintegration frame is fixed to the outer wall of the rotating rod, a first motor is fixed to one side of the disintegration box, the output end of the first motor passes through the disintegration box and is fixed to the rotating rod, a mounting rod passes through the fixing frame and a first synchronous pulley is fixed to its outer wall, a second synchronous pulley is fixed to the rotating rod after passing through the other side of the disintegration box, and a synchronous belt is provided between the first synchronous pulley and the second synchronous pulley.
[0007] Preferably, a transmission rod is rotatably connected between the first mounting plate and the second mounting plate, and a spiral blade is fixed to the outer wall of the transmission rod, with the spiral blade fixed to the screening barrel.
[0008] Preferably, two fixed plates are fixed inside the screening box, the screening barrel is rotatably connected inside the fixed plates, a rotating shaft is rotatably connected between the two fixed plates, and a cleaning brush is fixed on the outer wall of the rotating shaft.
[0009] Preferably, a second motor is fixed to the side of the second mounting plate away from the transmission rod, and the output end of the second motor passes through the second mounting plate and is fixed to the transmission rod.
[0010] Preferably, a first gear, a second gear, and a third gear are rotatably connected to the side of the first mounting plate away from the transmission rod. The first gear and the third gear mesh with the second gear. The transmission rod passes through the first mounting plate and is fixed to the first gear. The rotating shaft passes through the first mounting plate and is fixed to the third gear.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] By rotating the mounting rod, the mounting rod rotates, which in turn drives the turntable to rotate. The rotation of the turntable drives the first connecting rod to move, which in turn drives the second connecting rod to move up and down. The up and down movement of the second connecting rod causes the striking component to strike the connecting block, causing the feeding frame to vibrate up and down. This allows the powder in the feeding frame to quickly enter the screening bucket for screening, thus improving processing efficiency.
[0013] In addition, by starting the first motor, the first motor drives the rotating rod to rotate, which in turn drives the dispersing frame to rotate. The dispersing frame breaks up the powder to prevent clumping. The rotation of the rotating rod drives the second synchronous pulley to rotate, which in turn drives the synchronous belt to move. The synchronous belt then drives the first synchronous pulley to rotate, which in turn drives the mounting rod to rotate. In this way, the mounting rod can be driven to rotate while the powder is being broken up, without the need for additional power, thus reducing energy consumption. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the disassembled frame structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the screening barrel structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the cleaning brush structure of this utility model.
[0018] In the diagram: 1. Screening box; 2. Feed hopper; 3. Dispersing box; 4. Rotating rod; 5. First motor; 6. Dispersing frame; 7. Discharge frame; 8. Fixed frame; 9. Mounting rod; 10. Turntable; 11. First connecting rod; 12. Second connecting rod; 13. Striking component; 14. Connecting block; 15. First synchronous pulley; 16. Second synchronous pulley; 17. Synchronous belt; 18. First mounting plate; 19. Second mounting plate; 20. Screening barrel; 21. Transmission rod; 22. Spiral blade; 23. Fixed plate; 24. Rotating shaft; 25. Cleaning brush; 26. Second motor. Detailed Implementation
[0019] 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.
[0020] The powder screening device after the engine block castable is used to screen the powder components in the castable. Specifically, castables typically contain different types of powders, such as sand and clay, which are mixed during the casting process and used to form castings such as engine blocks. After the casting process is completed, the powder in the castable may aggregate, clump, or settle due to heating, use, or storage. Screening is necessary to ensure the uniformity and particle size of the powder for subsequent operations or to improve casting quality.
[0021] like Figures 1-4As shown, this utility model provides a technical solution: a powder screening device for engine cylinder block castable refractory after molding, including a screening box 1, a feeding hopper 2 fixedly connected to the top of the screening box 1, a dispersing box 3 fixedly connected to the bottom of the feeding hopper 2, a discharging frame 7 slidably connected to the bottom of the dispersing box 3, and the discharging frame 7 and the dispersing box 3 connected by a rope, a first mounting plate 18 and a second mounting plate 19 fixed inside the screening box 1, a screening barrel 20 rotatably connected between the first mounting plate 18 and the second mounting plate 19, and the discharging frame 7 located at the screening barrel. Inside one side of 20, a fixed frame 8 is fixed to the inner wall of the screening box 1. A mounting rod 9 is rotatably connected through the fixed frame 8. A turntable 10 is fixed to one side of the mounting rod 9. The turntable 10 is rotatably connected to the fixed frame 8. A first connecting rod 11 is rotatably connected to one side of the turntable 10. A limit frame is fixed inside the screening box 1. A second connecting rod 12 is slidably connected through the limit frame. The first connecting rod 11 and the second connecting rod 12 are rotatably connected. A striking piece 13 is fixed to the top of the second connecting rod 12. A connecting block 14 is fixed to the bottom of the feeding frame 7. A rotating rod 4 is rotatably connected inside the dispersing box 3. A dispersing frame 6 is fixed to the outer wall of the rotating rod 4. A first motor 5 is fixed to one side of the dispersing box 3. The output end of the first motor 5 passes through the dispersing box 3 and is fixed to the rotating rod 4. A mounting rod 9 passes through the fixing frame 8 and a first synchronous pulley 15 is fixed to its outer wall. A second synchronous pulley 16 is fixed to the other side of the dispersing box 3 after the rotating rod 4 passes through it. A synchronous belt 17 is provided between the first synchronous pulley 15 and the second synchronous pulley 16. A dust cover can be installed inside the screening box 1 to protect the first synchronous pulley 15, the second synchronous pulley 16 and the synchronous belt 17.
[0022] It should be noted that by feeding the powder into the feed hopper 2, and then starting the first motor 5, the first motor 5 drives the rotating rod 4 to rotate, which in turn drives the dispersing frame 6 to rotate. The dispersing frame 6 disperses the powder to prevent clumping. The rotation of the rotating rod 4 drives the second synchronous wheel 16 to rotate, which in turn drives the synchronous belt 17 to move. The synchronous belt 17 drives the first synchronous wheel 15 to rotate, which in turn drives the mounting rod 9 to rotate. The mounting rod 9 drives the turntable 10 to rotate, which in turn drives the first connecting rod 11 to move. The movement of the first connecting rod 11 drives the second connecting rod 12 to move up and down. The up and down movement of the second connecting rod 12 drives the striking piece 13 to strike the connecting block 14, causing the feeding frame 7 to vibrate up and down. This allows the powder in the feeding frame 7 to quickly enter the screening bucket 20 for screening.
[0023] like Figure 3 and Figure 4As shown, a transmission rod 21 is rotatably connected between the first mounting plate 18 and the second mounting plate 19. A spiral blade 22 is fixed to the outer wall of the transmission rod 21, and the spiral blade 22 is fixed to the screening barrel 20. Two fixing plates 23 are fixed inside the screening box 1, and the screening barrel 20 is rotatably connected to the fixing plates 23. A rotating shaft 24 is rotatably connected between the two fixing plates 23, and a cleaning brush 25 is fixed to the outer wall of the rotating shaft 24. A second motor 26 is fixed to the side of the second mounting plate 19 away from the transmission rod 21. The output end of the second motor 26 passes through the second mounting plate 19 and is fixed to the transmission rod 21. A first gear, a second gear, and a third gear are rotatably connected to the side of the first mounting plate 18 away from the transmission rod 21. The first gear and the third gear mesh with the second gear. The transmission rod 21 passes through the first mounting plate 18 and is fixed to the first gear. The rotating shaft 24 passes through the first mounting plate 18 and is fixed to the third gear. Two collection boxes are inserted into the screening box 1. A box door is installed at one end of the screening box 1. A dust cover is fixed to one side of the first mounting plate 18. The first gear, the second gear, and the third gear are all located inside the dust cover.
[0024] It should be noted that by starting the second motor 26, the second motor 26 drives the transmission rod 21 to rotate, which in turn drives the spiral blade 22 and the screening barrel 20 to rotate, screening the powder in the screening barrel 20. During the rotation of the transmission rod 21, the first gear rotates, which in turn drives the second gear to rotate, which in turn drives the third gear to rotate, thereby driving the rotating shaft 24 to rotate. The rotating shaft 24 drives the cleaning brush 25 to move, cleaning the screening barrel 20 and preventing clogging. In addition, two collection boxes are inserted into the screening box 1 to collect the screened powder. By installing a box door, it is convenient to clean the screening barrel 20 and the cleaning brush 25. In this solution, the electrical components are controlled by a matching peripheral controller, and the control circuit can be implemented by simple programming by those skilled in the art. It is common knowledge in the field and is only used without modification. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A powder screening device for engine cylinder block castable after molding, comprising a screening box (1), characterized in that: The top of the screening box (1) is fixedly connected to the feed hopper (2), the bottom of the feed hopper (2) is fixedly connected to the dispersing box (3), the bottom of the dispersing box (3) is slidably connected to the discharge rack (7), the screening box (1) is fixedly connected to the first mounting plate (18) and the second mounting plate (19), the screening barrel (20) is rotatably connected between the first mounting plate (18) and the second mounting plate (19), the discharge rack (7) is located inside one side of the screening barrel (20), the inner wall of the screening box (1) is fixedly connected to the fixing frame (8), and the fixing frame (8) is through-hole A mounting rod (9) is rotatably connected, and a turntable (10) is fixed on one side of the mounting rod (9). The turntable (10) is rotatably connected to the fixed frame (8). A first connecting rod (11) is rotatably connected to one side of the turntable (10). A limit frame is fixed inside the screening box (1). A second connecting rod (12) is slidably connected through the limit frame. The first connecting rod (11) and the second connecting rod (12) are rotatably connected. A striking piece (13) is fixed at the top of the second connecting rod (12). A connecting block (14) is fixed at the bottom of the unloading frame (7).
2. The powder screening device after molding of engine cylinder block castable refractory according to claim 1, characterized in that: The disintegration box (3) is rotatably connected to a rotating rod (4). A disintegration frame (6) is fixed to the outer wall of the rotating rod (4). A first motor (5) is fixed to one side of the disintegration box (3). The output end of the first motor (5) passes through the disintegration box (3) and is fixed to the rotating rod (4). The mounting rod (9) passes through the fixing frame (8) and is fixed to the outer wall of the first synchronous pulley (15). The rotating rod (4) passes through the other side of the disintegration box (3) and is fixed to the second synchronous pulley (16). A synchronous belt (17) is provided between the first synchronous pulley (15) and the second synchronous pulley (16).
3. The powder screening device after the engine cylinder block casting refractory is formed according to claim 1, characterized in that: A transmission rod (21) is rotatably connected between the first mounting plate (18) and the second mounting plate (19). A spiral blade (22) is fixed on the outer wall of the transmission rod (21), and the spiral blade (22) is fixed to the screening barrel (20).
4. The powder screening device after the engine cylinder block casting refractory is formed according to claim 1, characterized in that: The screening box (1) has two fixed plates (23) inside. The screening barrel (20) is rotatably connected inside the fixed plates (23). A rotating shaft (24) is rotatably connected between the two fixed plates (23). A cleaning brush (25) is fixed on the outer wall of the rotating shaft (24).
5. The powder screening device after molding of engine cylinder block castable refractory according to claim 1, characterized in that: A second motor (26) is fixed on the side of the second mounting plate (19) away from the transmission rod (21). The output end of the second motor (26) passes through the second mounting plate (19) and is fixed to the transmission rod (21).
6. The powder screening device after molding of engine cylinder block castable refractory according to claim 1, characterized in that: The first mounting plate (18) is rotatably connected to a first gear, a second gear and a third gear on the side away from the transmission rod (21). The first gear and the third gear are both meshed with the second gear. The transmission rod (21) passes through the first mounting plate (18) and is fixed to the first gear. The rotating shaft (24) passes through the first mounting plate (18) and is fixed to the third gear.
Citation Information
Patent Citations
Sand screening device
CN220697396U