Cast grinding ball grinding machine

Abstract

The utility model discloses a cast grinding ball grinding machine, relates to the related field of grinding ball grinding, and aims to solve the problems that in the prior art, the conveying of grinding balls and the driving of a grinding structure are mutually independent, the integrality is not strong enough, and the cast grinding balls roll in the same direction basically during conveying and are difficult to be in full contact with a grinding part. A middle rotating grinding assembly is arranged in the grinding machine body in a matched mode and comprises an annular grinding piece, the annular grinding piece is arranged in the middle of the interior of the grinding machine body, and the outer surface of the annular grinding piece is a first grinding face. The inner surface of the grinding machine body converges from top to bottom to form a lower inner convergence part, a plurality of spiral plates are fixed to the inner wall of the grinding machine body in an annular array mode, the upper end face and the lower end face of each spiral plate are second grinding faces, and a spiral conveying channel is formed among the grinding machine body, the annular grinding part and the spiral plates. The multiple spiral conveying channels are arranged in an annular array mode.

Description

Technical Field

[0001] This utility model relates to the field of grinding balls, specifically a grinding machine for casting grinding balls. Background Technology

[0002] Cast grinding balls, as key wear-resistant media widely used in industries such as mining, cement, and metallurgy, directly affect grinding efficiency and service life due to their surface quality. During the casting process, defects such as burrs, flash, and riser residue often exist on the surface of the grinding balls due to the influence of pouring and cooling processes. These defects not only reduce the mechanical properties of the grinding balls but may also accelerate equipment wear or cause the grinding balls to break during use. Therefore, grinding balls need to undergo surface grinding treatment before leaving the factory to improve their geometric accuracy and surface finish.

[0003] In the early days, the grinding of casting grinding balls relied mainly on manual operation. Workers used sandpaper, grinding wheels, and other tools to manually grind the surface of the grinding balls. This method was labor-intensive, inefficient, and the grinding quality was difficult to guarantee, with significant differences in the quality of grinding balls produced by different workers. With the advancement of industrial technology, some simple mechanical grinding equipment gradually emerged, such as belt grinders and grinding wheel grinders. For example, the Chinese authorized patent with publication number CN 117161916 A (Casting Grinding Ball Sprue Separator) includes a processing box, one side of which is provided with a feeding channel for placing grinding balls. The inner cavity of the processing box is respectively provided with a polishing mechanism for processing the sprues and risers of the grinding balls and a pushing mechanism for pushing the grinding balls. This invention relates to the field of casting grinding ball processing technology. This casting grinding ball riser separator adjusts the distance between the conveyor belt and the grinding belt. By setting an inverted V gap, the grinding balls can tumble under the grinding belt, ensuring that each surface can fully contact the grinding belt. When the grinding balls are conveyed between the grinding belt and the conveyor belt, the protruding risers on the surface will be ground off by the grinding belt. Grinding can be carried out in one conveying, without the need to stop the machine for feeding and unloading after batch grinding is completed. This results in higher processing efficiency and better grinding effect.

[0004] Although the aforementioned existing technology has the function of grinding the gating riser of casting grinding balls, the conveying of grinding balls and the driving of the grinding structure are independent of each other, and the overall integrity is not strong enough. Moreover, when the casting grinding balls are conveyed, they roll in basically the same direction, making it difficult to make full contact with the grinding components. Utility Model Content

[0005] The purpose of this utility model is to provide a casting grinding ball grinding machine to solve the problems mentioned in the background art, such as the independent operation of the grinding ball conveying and grinding structure, insufficient overall integrity, and the fact that the casting grinding balls tumble in basically the same direction during conveying, making it difficult to fully contact the grinding components.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a casting grinding ball grinding machine, comprising a grinding machine body, an intermediate rotating grinding component is configured inside the grinding machine body, the intermediate rotating grinding component includes an annular grinding element, the annular grinding element is disposed in the middle position inside the grinding machine body, and the outer surface of the annular grinding element is a first grinding surface; the inner surface of the grinding machine body converges from top to bottom to form a lower inner convergence part, and multiple spiral plates are fixed in an annular array on the inner wall of the grinding machine body, the upper and lower end faces of the spiral plates are both second grinding surfaces, and a spiral conveying channel is formed between the grinding machine body, the annular grinding element and the spiral plates, and multiple spiral conveying channels are arranged in an annular array.

[0007] Preferably, the upper end face of the grinding machine body is provided with a feed inlet along the input end of the spiral conveying channel, a feed hopper is welded and fixed to the upper end of the grinding machine body, the feed hopper is connected to the feed inlet, a feeding hopper is welded and fixed to one side of the upper end of the feed hopper, the feeding hopper is smoothly connected to the end face of the feed hopper, an upper fixed box is fixed to the upper end of the grinding machine body, and a side fixed cross plate is fixed to the other side of the upper end of the feed hopper along the outside of the upper fixed box.

[0008] Preferably, a drive motor is mounted on the upper end of the upper fixed housing via a horizontal plate, and a drive gear is mounted on the output shaft end of the drive motor. An upper fixed tube is fixed in the center of the upper end of the annular grinding component. The upper end of the upper fixed tube extends through the upper surface of the grinding machine body to the interior of the upper fixed housing and is rotatably connected to the upper wall of the upper fixed housing. The upper fixed tube is rotatably connected to the upper wall of the grinding machine body. A fixed gear ring is fixed to the upper end of the outer side of the upper fixed tube. The drive gear passes through the slot on the upper fixed housing and meshes with the fixed gear ring.

[0009] Preferably, the annular grinding component has an internal collection cavity, and the outer surface of the annular grinding component has an array of collection holes.

[0010] Preferably, an adsorption component is provided inside the intermediate rotating grinding component. The adsorption component includes an upper placement plate located at the upper end of the upper fixed box. An inner embedded column is fixed in the center of the lower end of the upper placement plate. The inner embedded column is embedded in the upper fixed tube. A fixed magnet is embedded inside the inner embedded column and extends to the lower end of the inner collection cavity.

[0011] Preferably, a discharge port is provided on the lower end face of the grinding machine body along the output end of the spiral conveying channel, and a discharge hopper is welded and fixed to the lower end of the grinding machine body, with the discharge hopper communicating with the discharge port.

[0012] Preferably, the grinding machine body has support frames welded and fixed at both ends.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the unique spiral conveying channel and the annular grinding component work together to make the casting grinding ball continuously contact the grinding surface during its downward movement, thus achieving efficient grinding. The movement of the casting grinding ball is driven entirely by its own gravity, eliminating the need for a drive structure and making the structure more streamlined. Furthermore, the state of the casting grinding ball moving along the spiral conveying channel is more disordered, allowing it to contact more positions on the grinding surface and achieve comprehensive grinding.

[0015] (2) In this utility model, the design of the lower inner converging part enables the casting grinding ball to fully contact the annular grinding part during the downward movement, ensuring the sufficiency of grinding, effectively removing burrs and uneven parts on the surface of the casting grinding ball, and improving the surface quality of the casting grinding ball.

[0016] (3) In this utility model, the setting of the fixed magnet can attract the grinding ball to a certain extent, so that when it is in the upper position inside the spiral conveying channel, it is closer to the annular grinding part during conveying; and the setting of the fixed magnet can attract the debris generated during the grinding process, so that it enters the inner collection cavity through the collection hole and is adsorbed, effectively avoiding the impact of debris on the working environment and equipment, and reducing maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a casting grinding ball polishing machine according to the present invention;

[0018] Figure 2 This is a top view of a casting grinding ball polishing machine according to the present invention;

[0019] Figure 3 This is a cross-sectional view at section AA of a casting grinding ball grinding machine according to this utility model;

[0020] Figure 4 This is a front view of a casting grinding ball polishing machine according to the present invention;

[0021] Figure 5 This is a cross-sectional view of section BB of a casting grinding ball grinding machine according to this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the intermediate rotating grinding component of a casting grinding ball grinding machine according to the present invention;

[0023] Figure 7 This is a schematic diagram of the adsorption component of a casting grinding ball polishing machine according to the present invention.

[0024] In the diagram: 1. Grinding machine body; 2. Support frame; 3. Lower inner converging part; 4. Spiral plate; 5. Spiral conveying channel; 6. Feed inlet; 7. Feed hopper; 8. Upper hopper; 9. Side fixed horizontal plate; 10. Discharge port; 11. Discharge hopper; 12. Upper fixed box; 13. Middle rotating grinding assembly; 14. Annular grinding component; 15. Inner collection cavity; 16. Collection hole; 17. Upper fixed pipe; 18. Fixed gear ring; 19. Drive motor; 20. Drive gear; 21. Adsorption assembly; 22. Upper placement plate; 23. Inner embedded column; 24. Fixed magnet. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figures 1-7 One embodiment of this utility model is a casting grinding ball grinding machine, which mainly includes a grinding machine body 1, an intermediate rotating grinding component 13, an adsorption component 21, etc.

[0027] The main body 1 of the grinding machine is welded and fixed to both ends of the external support frame 2, which provides stable support for the entire grinding machine, ensures the stability of the equipment during operation, reduces the impact of vibration on the grinding effect, and effectively improves the reliability and service life of the equipment.

[0028] A central rotating grinding assembly 13 is fitted inside the main body 1 of the grinding machine. The central rotating grinding assembly 13 includes an annular grinding element 14, which is located in the center of the main body 1, with its outer surface serving as the first grinding surface. The inner surface of the main body 1 converges from top to bottom to form a lower inner convergence section 3. This convergence design allows the casting grinding ball to gradually approach the annular grinding element 14 during its downward movement, ensuring thorough grinding. Multiple spiral plates 4 are fixed in a circular array on the inner wall of the main body 1. The upper and lower ends of the spiral plates 4 are both second grinding surfaces. A spiral conveying channel 5 is formed between the main body 1, the annular grinding element 14, and the spiral plates 4, and the multiple spiral conveying channels 5 are arranged in a circular array. As the casting grinding ball moves downward through the spiral conveying channel 5, it continuously contacts the first and second grinding surfaces, thereby achieving efficient grinding. This spiral conveying channel design ensures that the casting grinding ball receives uniform grinding force during its movement, improving grinding quality and increasing the grinding area, further enhancing grinding efficiency.

[0029] A feed inlet 6 is provided on the upper surface of the grinding machine body 1 along the input end of the spiral conveying channel 5. A feed hopper 7 is welded and fixed to the upper end of the grinding machine body 1, and the feed hopper 7 is connected to the feed inlet 6. A loading hopper 8 is welded and fixed to one side of the upper end of the feed hopper 7, and the loading hopper 8 is smoothly connected to the end face of the feed hopper 7. This design allows the casting grinding balls to smoothly enter the feed hopper 7 from the loading hopper 8, and then enter the spiral conveying channel 5 through the feed inlet 6, ensuring smooth feeding. A discharge port 10 is provided on the lower surface of the grinding machine body 1 along the output end of the spiral conveying channel 5. A discharge hopper 11 is welded and fixed to the lower end of the grinding machine body 1, and the discharge hopper 11 is connected to the discharge port 10. The ground casting grinding balls are discharged into the discharge hopper 11 through the discharge port 10, and then reach the conveying device, realizing the automatic discharge of casting grinding balls and improving the automation level of the production process.

[0030] A top fixed housing 12 is fixed to the upper end of the grinding machine body 1. A side fixed cross plate 9 is fixed to the other side of the upper end of the feed hopper 7 along the outside of the top fixed housing 12. A drive motor 19 is mounted on the upper end of the top fixed housing 12 via the cross plate, and a drive gear 20 is mounted on the output shaft end of the drive motor 19. A top fixed tube 17 is fixed to the center of the upper end of the annular grinding component 14. The upper end of the top fixed tube 17 extends through the upper surface of the grinding machine body 1 into the interior of the top fixed housing 12 and is rotatably connected to the upper wall of the top fixed housing 12. The top fixed tube 17 is rotatably connected to the upper wall of the grinding machine body 1. A fixed gear ring 18 is fixed to the upper end of the outer side of the top fixed tube 17. The drive gear 20 passes through the slot on the top fixed housing 12 and meshes with the fixed gear ring 18. When the drive motor 19 starts, the drive gear 20 rotates, and through its meshing relationship with the fixed gear ring 18, it drives the annular grinding component 14 to rotate counterclockwise. This drive system has a simple structure and high transmission efficiency, which can ensure the stable and reliable rotation of the annular grinding part 14, providing a power guarantee for efficient grinding.

[0031] An inner collection cavity 15 is formed inside the annular grinding component 14, and several collection holes 16 are arrayed on the outer surface of the annular grinding component 14. An adsorption component 21 is fitted inside the central rotating grinding assembly 13. The adsorption component 21 includes an upper placement plate 22 located at the upper end of the upper fixed housing 12. An inner embedded column 23 is fixed at the center of the lower end of the upper placement plate 22, embedded within the upper fixed tube 17. A fixed magnet 24 is embedded inside the inner embedded column 23, extending to the lower end of the inner collection cavity 15. The fixed magnet 24 can be an electromagnet, and its wiring is arranged from the top, allowing its attractive force to be controlled and facilitating power-off cleaning during debris removal. During the grinding process, the grinding debris, attracted by the fixed magnet 24, enters the inner collection cavity 15 through the collection holes 16 and is adsorbed to the outside of the fixed magnet 24. This debris collection method effectively prevents debris from accumulating inside the equipment. Periodically lifting the adsorption component 21 allows the fixed magnet 24 to be removed, enabling debris removal. This adsorption component design makes debris removal simple and convenient.

[0032] Working principle: The casting grinding balls reach the feed hopper 7 through the feeding hopper 8 and enter the screw conveyor channel 5 through the feed inlet 6.

[0033] The drive motor 19 drives the drive gear 20 to rotate, and through the meshing relationship between the drive gear 20 and the fixed gear ring 18, the annular grinding component 14 rotates counterclockwise. Because the fixed magnet 24 inside the annular grinding component 14 attracts the casting grinding balls, the casting grinding balls move closer to the annular grinding component 14 and downwards along the spiral conveying channel 5. During this downward movement, the casting grinding balls come into contact with the first grinding surface of the annular grinding component 14 and the second grinding surface of the spiral plate 4, and are thus ground. Simultaneously, the convergence effect of the lower inner converging part 3 ensures that the casting grinding balls can fully contact the annular grinding component 14, further improving the grinding effect. After grinding, the casting grinding balls are discharged through the discharge port 10 into the discharge hopper 11, and then onto the conveying device, completing the entire grinding and discharge process.

[0034] During the grinding process, the grinding debris is attracted by the fixed magnet 24, enters the inner collection cavity 15 through the collection hole 16, and is adsorbed to the outside of the fixed magnet 24. Periodically lifting the adsorption assembly 21 allows the fixed magnet 24 to be removed, enabling debris cleaning and ensuring the normal operation of the equipment and a good working environment.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cast grinding ball lapper comprising a lapper body (1) characterised in that: The grinding machine body (1) is equipped with an intermediate rotating grinding component (13), which includes an annular grinding component (14). The annular grinding component (14) is located in the middle of the grinding machine body (1), and the outer surface of the annular grinding component (14) is the first grinding surface. The inner surface of the grinding machine body (1) converges from top to bottom to form a lower inner convergence part (3). Multiple spiral plates (4) are fixed in an annular array on the inner wall of the grinding machine body (1). The upper and lower end faces of the spiral plates (4) are the second grinding surfaces. A spiral conveying channel (5) is formed between the grinding machine body (1), the annular grinding component (14), and the spiral plates (4). Multiple spiral conveying channels (5) are arranged in an annular array.

2. A cast grinding ball dresser according to claim 1, characterized in that: The upper end of the grinding machine body (1) is provided with a feed inlet (6) along the input end of the spiral conveying channel (5). A feed hopper (7) is welded and fixed to the upper end of the grinding machine body (1). The feed hopper (7) is connected to the feed inlet (6). A feeding hopper (8) is welded and fixed to one side of the upper end of the feed hopper (7). The feeding hopper (8) is smoothly connected to the end face of the feed hopper (7). An upper fixed box (12) is fixed to the upper end of the grinding machine body (1). A side fixed cross plate (9) is fixed to the other side of the upper end of the feed hopper (7) along the outside of the upper fixed box (12).

3. A cast grinding ball dresser according to claim 2, characterized in that: The upper fixed housing (12) is equipped with a drive motor (19) via a horizontal plate. The output shaft of the drive motor (19) is equipped with a drive gear (20). The upper end of the annular grinding part (14) is fixed with an upper fixed tube (17). The upper end of the upper fixed tube (17) extends through the upper surface of the grinding machine body (1) to the interior of the upper fixed housing (12) and is rotatably connected to the upper wall of the upper fixed housing (12). The upper fixed tube (17) is rotatably connected to the upper wall of the grinding machine body (1). The upper end of the upper fixed tube (17) is fixed with a fixed toothed ring (18). The drive gear (20) passes through the slot on the upper fixed housing (12) and meshes with the fixed toothed ring (18).

4. A cast grinding ball dresser according to claim 3, characterized in that: The annular grinding component (14) has an inner collecting cavity (15) inside, and the outer surface of the annular grinding component (14) has an array of collecting holes (16).

5. A cast grinding ball dresser according to claim 4, characterized in that: An adsorption component (21) is provided inside the intermediate rotating grinding component (13). The adsorption component (21) includes an upper placement plate (22), which is located at the upper end of the upper fixed box (12). An inner embedded column (23) is fixed in the middle at the lower end of the upper placement plate (22). The inner embedded column (23) is embedded in the upper fixed tube (17). A fixed magnet (24) is embedded inside the inner embedded column (23). The fixed magnet (24) extends to the lower end of the inner collection cavity (15).

6. A cast grinding ball dresser according to claim 1, characterized in that: The lower end face of the grinding machine body (1) is provided with a discharge port (10) along the output end of the spiral conveying channel (5). A discharge hopper (11) is welded and fixed to the lower end of the grinding machine body (1), and the discharge hopper (11) is connected to the discharge port (10).

7. A cast grinding ball dresser according to claim 1, characterized in that: The grinding machine body (1) has support frames (2) welded and fixed at both ends of its exterior.

Images