Vibration shakeout device for well lid casting

Abstract

The utility model provides a vibration shakeout device for well lid casting, which comprises a roller conveyor, the roller conveyor comprises a conveying frame and rollers, a gap is reserved between every two rollers, a supporting plate is arranged at the lower end of the conveying frame, a slag discharging plate is arranged above the supporting plate and below the rollers, and the slag discharging plate is arranged above the conveying frame and below the rollers. An electric hydraulic supporting rod is connected between the supporting plate and the slag discharging plate, a plurality of lower supporting shafts are upwards arranged at the upper end of the slag discharging plate, a base is arranged on one side of the conveying frame, a supporting column is upwards arranged on the base, a mounting table is horizontally arranged at the upper end of the supporting column in the direction of the roller conveyor, and an electric hydraulic telescopic rod is downwards mounted on the mounting table. A vibration table corresponding to the slag discharging plate in position is arranged at the lower end of the electric hydraulic telescopic rod, a vibration motor is installed at the upper end of the vibration table, and a plurality of vibration shafts are downwards arranged at the lower end of the vibration table. According to the automatic shakeout device, automatic shakeout vibration is adopted to replace manual knock shakeout, so that not only is the working efficiency improved, but also the labor intensity can be effectively reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of manhole cover casting, and relates to a vibrating shakeout device for manhole cover casting. Background Technique

[0002] As an indispensable part of urban infrastructure, manhole covers are widely used in roads, drainage systems, and maintenance openings of various underground pipelines. Its main function is to ensure the safety of pedestrians and vehicles and facilitate the maintenance of underground facilities. Traditionally, manhole covers are mostly produced by casting processes. Especially for materials with high strength and corrosion resistance requirements such as cast iron or ductile iron, casting has become a common choice.

[0003] During the casting process, usually, a mold is first made according to the design drawing, and then the molten metal is poured into the mold. After cooling and solidifying, the manhole cover of the required shape is formed. However, after the manhole cover casting is completed, there is still a key step - shakeout and demolding, that is, taking the manhole cover out of the mold and removing the molding sand or other residues attached to its surface. This process is crucial for ensuring product quality because any residue may affect the smoothness of the manhole cover surface and the effect of subsequent processing techniques.

[0004] Currently, most foundries still rely on traditional shakeout methods, that is, completing this process through manual operations. The specific approach is usually to use a crane or other lifting equipment to lift the cast manhole cover out of the mold, and then workers use hammers or other tools to strike the manhole cover to prompt the molding sand to fall off. Although this manual operation method can meet the basic requirements, it has obvious deficiencies: on the one hand, since the whole process highly depends on manpower, the work efficiency is low; on the other hand, long-term manual knocking not only increases the labor intensity but also increases the production cost. Especially today when labor costs are rising day by day, this method obviously can no longer meet the needs of modern production. Content of the Utility Model

[0005] The purpose of the utility model is to provide a vibrating shakeout device for manhole cover casting, which uses automatic vibrating shakeout to replace manual knocking shakeout, not only improves work efficiency but also effectively reduces labor intensity and production cost.

[0006] To solve the above technical problems, the present utility model provides a vibrating shakeout device for manhole cover casting, including a roller conveyor, which comprises a conveying frame, a plurality of rollers rotatably connected to the upper end of the conveying frame, and a driving motor for driving the rollers to rotate. There is a gap between every two rollers. A support plate is arranged at the lower end of the conveying frame. A slag discharge plate is arranged above the support plate and below the rollers. An electric hydraulic support rod is connected between the support plate and the slag discharge plate. A plurality of lower support shafts are upwardly arranged at the upper end of the slag discharge plate, and each lower support shaft is located at the gap position between two rollers. A base is arranged on one side of the conveying frame, and a support column is upwardly arranged on the base. An installation platform is horizontally arranged at the upper end of the support column towards the direction of the roller conveyor. An electric hydraulic telescopic rod is downwardly installed on the installation platform, and a vibrating table corresponding to the position of the slag discharge plate is arranged at the lower end of the electric hydraulic telescopic rod. A vibrating motor is installed at the upper end of the vibrating table, and a plurality of vibrating shafts are downwardly arranged at the lower end of the vibrating table.

[0007] By adopting the above technical solution, after placing the manhole cover with the mold on the roller conveyor, the rollers rotate to convey the manhole cover above the slag discharge plate. Then, the electric hydraulic support rod drives the lower support shaft to rise and jack up the manhole cover. The electric hydraulic telescopic rod extends to drive the vibrating shaft to contact the manhole cover. Subsequently, the vibrating motor works to generate high-frequency vibration, and the vibration can be transmitted to the manhole cover through the vibrating shaft, making the manhole cover also vibrate at high frequency, finally vibrating off the mold on the manhole cover, passing through the gap between the rollers and falling onto the slag discharge plate, and being discharged outside the conveying frame through the slag discharge plate to complete the shakeout and demolding of the manhole cover. Finally, both the electric hydraulic support rod and the electric hydraulic telescopic rod shorten and reset, and then the roller conveyor conveys the manhole cover away.

[0008] The present utility model is further arranged such that a belt pulley is arranged at one end of each roller, each belt pulley is provided with two circles of transmission grooves, and every two adjacent belt pulleys are in transmission connection through a transmission belt connected in the corresponding transmission grooves.

[0009] The present utility model is further arranged such that the side of the slag discharge plate away from the support column is inclined downward.

[0010] The present utility model is further arranged such that on both sides of the slag discharge plate perpendicular to its downwardly inclined side, retaining edges are upwardly arranged.

[0011] The present utility model is further arranged such that the telescopic shaft of the electric hydraulic telescopic rod and the vibrating table are vulcanized and connected through a rubber vibration isolation block.

[0012] The present utility model is further arranged such that the upper end of each lower support shaft is a tip.

[0013] The present utility model is further arranged such that the lower end of each vibrating shaft is a tip.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] First, by introducing an automated vibration sand removal device, the utility model successfully replaces the traditional manual knocking method. This not only significantly improves the efficiency and speed of sand removal and demoulding, but also greatly reduces the labor intensity of workers, avoiding occupational health problems caused by long-term repetitive physical labor. In addition, due to the reduction in the need for a large number of workers, enterprise personnel management becomes more convenient, helping to reduce the overall labor cost and thus creating greater economic benefits for the enterprise.

[0016] Second, the vibration sand removal device of the utility model is small and has a reasonable structure, making it easy to install and use in existing foundry workshops without large-scale transformation of the production line. It has high popularization and application value and is conducive to promoting technological innovation in the industry.

[0017] Third, the rubber vibration isolation blocks in the device of the utility model can effectively absorb and isolate most of the vibration energy generated by the vibration motor, preventing this vibration from being directly transmitted to the electro-hydraulic telescopic rod. This avoids equipment wear and damage caused by long-term vibration, ensures the stable operation of the device, and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is Figure 1 an enlarged view of A in

[0020] Figure 3 for showing the connection between the slag discharge plate and the electro-hydraulic support rod;

[0021] Figure 4 for showing the connection between the vibrating table and the electro-hydraulic telescopic rod.

[0022] Among them, 1. conveying frame; 2. roller; 3. driving motor; 4. belt pulley; 5. transmission groove; 6. transmission belt; 7. support plate; 8. slag discharge plate; 9. edge guard; 10. electro-hydraulic support rod; 11. support shaft; 12. base; 13. support column; 14. installation table; 15. electro-hydraulic telescopic rod; 16. vibrating table; 17. rubber vibration isolation block; 18. vibration motor; 19. vibration shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes in detail a vibration sand shaking device for manhole cover casting proposed by the present utility model in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model. The same or similar reference numerals in the drawings represent the same or similar components.

[0024] Example, refer to Figures 1-4 , a vibration sand shaking device for manhole cover casting, including a roller conveyor. The roller conveyor includes a conveying frame 1, multiple rollers 2 rotatably connected to the upper end of the conveying frame 1, and a driving motor 3 for driving the rollers 2 to rotate. There is a gap between every two rollers 2. One end of each roller 2 extends beyond one side of the conveying frame 1 and is provided with a pulley 4. Each pulley 4 is provided with two circles of transmission grooves 5. Each adjacent pair of pulleys 4 is drivingly connected by a transmission belt 6 connected to the corresponding transmission groove 5. The power output shaft of the driving motor 3 is connected to one of the pulleys 4.

[0025] A support plate 7 is provided at the lower end of the conveying frame 1. Above the support plate 7 and below the rollers 2, there is a slag discharging plate 8. One side of the slag discharging plate 8 slopes downward. On both sides of the slag discharging plate 8 perpendicular to its downward-sloping side, there are upwardly provided edge guards 9, which are convenient for discharging the shaken slag from one side of the slag discharging plate 8. Two electro-hydraulic support rods 10 are connected between the support plate 7 and the slag discharging plate 8. The upper end of the slag discharging plate 8 is upwardly provided with multiple lower support shafts 11. The upper end of each lower support shaft 11 is a tip, and each lower support shaft 11 is located at the gap position between two rollers 2, so that the electro-hydraulic support rod 10 can drive the tip of the lower support shaft 11 to rise above the rollers 2 to lift the manhole cover.

[0026] A base 12 is provided on one outer side of the conveying frame 1. The base 12 is located on the side of the slag discharging plate 8 away from its downward-sloping side. An upright support column 13 is provided upward on the base 12. A mounting table 14 is horizontally provided at the upper end of the support column 13 in the direction of the roller conveyor. An electro-hydraulic telescopic rod 15 is installed downward on the mounting table 14. A vibration table 16 corresponding to the position of the slag discharging plate 8 is provided at the lower end of the electro-hydraulic telescopic rod 15. The telescopic shaft of the electro-hydraulic telescopic rod 15 and the vibration table 16 are vulcanized and connected through a rubber vibration isolation block 17. A large amount of vibration energy can be isolated through the rubber vibration isolation block 17 to prevent the electro-hydraulic telescopic rod 15 from shortening its service life due to vibration. A vibration motor 18 is installed at the upper end of the vibration table 16. Multiple vibration shafts 19 are provided downward at the lower end of the vibration table 16. The lower end of each vibration shaft 19 is a tip.

[0027] Working principle: After placing the manhole cover with the mold on the roller conveyor, the roller 2 rotates to convey the manhole cover above the slag discharge plate 8. Immediately, the electric hydraulic support rod 10 drives the lower support shaft 11 to rise to lift the manhole cover. The electric hydraulic telescopic rod 15 extends to drive the vibration shaft 19 to contact the manhole cover. Subsequently, the vibration motor 18 operates to generate high-frequency vibration, and the vibration can be transmitted to the manhole cover through the vibration shaft 19, causing the manhole cover to vibrate at high frequency. Finally, the mold on the manhole cover is vibrated off, falls through the gap between the rollers 2 onto the slag discharge plate 8, and is discharged outside the conveying frame 1 through the slag discharge plate 8, completing the sand removal and demolding of the manhole cover. Finally, both the electric hydraulic support rod 10 and the electric hydraulic telescopic rod 15 shorten and reset, and then the roller conveyor conveys the manhole cover away.

[0028] It should be noted that the various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0029] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the field of the present invention based on the above disclosure are within the protection scope of the claims.

Claims

1. A vibrating shakeout device for manhole cover casting, comprising a roller conveyor, the roller conveyor including a conveying frame (1), a plurality of rollers (2) rotatably connected to the upper end of the conveying frame (1), a drive motor (3) for driving the rollers (2) to rotate, and a gap is left between every two rollers (2), characterized in that, A support plate (7) is provided at the lower end of the conveying frame (1). Above the support plate (7) and below the roller (2), a slag discharging plate (8) is provided. An electro-hydraulic support rod (10) is connected between the support plate (7) and the slag discharging plate (8). At the upper end of the slag discharging plate (8), a plurality of lower support shafts (11) are provided upward. Each lower support shaft (11) is located at the gap position between two rollers (2). On one side of the conveying frame (1), a base (12) is provided. A support column (13) is provided upward on the base (12). At the upper end of the support column (13), an installation table (14) is provided horizontally towards the roller conveyor direction. An electro-hydraulic telescopic rod (15) is installed downward on the installation table (14). At the lower end of the electro-hydraulic telescopic rod (15), a vibration table (16) corresponding to the position of the slag discharging plate (8) is provided. A vibration motor (18) is installed at the upper end of the vibration table (16). A plurality of vibration shafts (19) are provided downward at the lower end of the vibration table (16).

2. The vibrating shakeout device for manhole cover casting according to claim 1, wherein At one end of each roller (2), a belt pulley (4) is provided. Each belt pulley (4) is provided with two circles of transmission grooves (5). Each adjacent pair of belt pulleys (4) are drivingly connected through a transmission belt (6) connected in the corresponding transmission groove (5).

3. A vibrating shakeout device for manhole cover casting according to claim 1, characterized in that, One side of the slag discharging plate (8) away from the support column (13) is inclined downward.

4. A vibrating shakeout device for manhole cover casting according to claim 3, characterized in that, On both sides of the slag discharging plate (8) perpendicular to its downward-inclined side, retaining edges (9) are provided upward.

5. A vibration sand shaking device for manhole cover casting according to claim 1, characterized in that, Between the telescopic shaft of the electro-hydraulic telescopic rod (15) and the vibration table (16), they are vulcanized and connected through a rubber vibration isolation block (17).

6. The vibrating shakeout device for manhole cover casting according to claim 1, characterized in that, The upper end of each lower support shaft (11) is a tip.

7. A vibrating shakeout device for manhole cover casting according to claim 1, characterized in that, The lower end of each vibration shaft (19) is a tip.

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