Ductile iron grinding ball quenching equipment and process method thereof

Abstract

The application provides a nodular cast iron grinding ball quenching equipment and a process method thereof, and relates to the technical field of quenching equipment.The nodular cast iron grinding ball quenching equipment comprises a quenching bin, guide rails and a material containing bin.The quenching bin is internally provided with quenching liquid.The guide rails are arranged at both sides of the upper part of the quenching bin.The inner sides of the guide rails at both sides are movably provided with guide blocks.The material containing bin is arranged below the guide blocks.The middle position of the top of the material containing bin is provided with a feeding hopper.The middle position of the bottom of the material containing bin is provided with a feeding pipe.When the grinding ball is discharged into the quenching bin, the material containing bin moves downward, the adjusting rod assembly rotates to the outside, the limiting of the supporting arm on the shielding hopper is matched, the shielding hopper moves to the outside, the feeding nozzle is exposed, and then the material containing bin is reset and rises, the adjusting rod assembly rotates downward, the limiting of the supporting arm on the shielding hopper is matched, the shielding hopper moves downward, and the feeding nozzle is shielded, which is beneficial to linkage control, timely bevel connection, liquid splashing prevention and safety.

Description

Technical Field

[0001] This invention relates to the field of quenching equipment technology, and in particular to a quenching equipment and process method for grinding balls of ductile iron. Background Technology

[0002] Ductile iron is a type of cast iron in which carbon is precipitated as spheroidal graphite through spheroidization and inoculation treatment, and the graphite is distributed in a spherical shape. It has good castability, wear resistance, and machinability. Ductile iron has excellent mechanical and technological properties, and its mechanical properties can be further improved through heat treatment. In the heat treatment process, ductile iron is often subjected to normalizing, isothermal quenching and other methods to improve its strength and hardness. Ductile iron grinding balls are mainly used in grinding machines.

[0003] Currently, when quenching ductile iron grinding balls, the high-temperature grinding balls are usually poured from the quenching frame into the quenching box using a tilting device. During the quenching process, the quenching liquid boils due to heat exchange, causing the quenching oil to splash outside the quenching tank, resulting in waste and pollution of the working environment. In existing technology, after adding the grinding balls, the opening of the quenching box is usually quickly covered manually with a cap to prevent liquid splashing. However, this process poses a safety hazard as operators are easily splashed by the liquid. Therefore, this invention proposes a quenching equipment and process method for ductile iron grinding balls to solve the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a quenching equipment and process method for grinding ductile iron balls. This quenching equipment and process method facilitates linkage control, timely oblique connection, prevents liquid splashing, and eliminates safety hazards.

[0005] To achieve the objectives of this invention, the invention is implemented through the following technical solution: a quenching device for grinding ductile iron balls, comprising a quenching chamber, guide rails, and a material holding chamber. The quenching chamber is filled with quenching fluid. The guide rails are located on both sides above the quenching chamber, and guide blocks are movably provided on the inner sides of both sides of the guide rails. The material holding chamber is located below the guide blocks. A feeding hopper is located at the middle position of the top of the material holding chamber, and a feeding pipe is located at the middle position of the bottom of the material holding chamber. An opening and closing component is provided at the lower end of the feeding pipe.

[0006] A first hinge seat is provided on one side of the bottom of the material holding hopper, and an adjusting rod assembly is rotatably connected to the first hinge seat. One end of the adjusting rod assembly is rotatably connected to a shielding hopper. A second hinge seat is provided below the outer side of the guide rail on one side, and both ends of the second hinge seat are rotatably provided with support arms. The lower ends of the two sets of support arms are connected to the two ends of the shielding hopper. The top of the quenching hopper is provided with a cover, and a feed nozzle corresponding to the feeding pipe is provided above the cover.

[0007] A further improvement is that: a mounting pad is provided on the upper part of the outer side of both sets of guide rails, and the guide rails are fixed to the mounting base surface by the mounting pad.

[0008] A further improvement is made in that: a pneumatic cylinder is provided at the top of the guide rail, and a tension gauge is provided at the output end of the pneumatic cylinder. The lower end of the tension gauge is connected to a guide block, the signal output end of the tension gauge is connected to a control terminal, and the control end of the control terminal is connected to the pneumatic cylinder and the opening and closing assembly.

[0009] A further improvement is that the opening and closing assembly includes a third hinge seat and a support cover. The third hinge seat is located below one side of the feeding pipe. The support cover is rotatably connected to the third hinge seat and is adapted to the output port of the feeding pipe. A torque motor is provided on the third hinge seat, and the output end of the torque motor is connected to the support cover.

[0010] A further improvement is that the adjusting rod assembly includes a first connecting rod, an adjusting member, and a second connecting rod. One end of the first connecting rod is rotatably connected to a first hinge seat, and one end of the second connecting rod is rotatably connected to the inner side of the shielding bucket. The inner ends of both the first and second connecting rods penetrate the adjusting member, and nuts are threaded onto both sides of the positions where the first and second connecting rods penetrate the adjusting member.

[0011] A further improvement is that the lower ends of the two sets of support arms are rotatably connected to the two ends of the shielding bucket, and the lower ends of the two sets of support arms are provided with adjustment grooves, and fastening bolts are provided on the adjustment grooves. The fastening bolts are used to fix the support arms and the shielding bucket.

[0012] A further improvement is that the top of the quenching chamber is provided with a chamber opening, and an inlet pipe is provided above one side of the quenching chamber, and a drain pipe is provided below the other side of the quenching chamber, with a valve on the drain pipe.

[0013] A further improvement is that the cover is adapted to the opening of the chamber, and there are locking blocks on both sides of the cover. The locking blocks have locking holes on their inner sides, and there are buckles on the upper sides of both sides of the quenching chamber that are adapted to the locking holes.

[0014] A further improvement is that: both sides of the bottom of the cover are rotatably provided with spring plates, and one side of the spring plate extends to the feed nozzle, and a spring is connected between the top side of the spring plate and the cover.

[0015] A process method for quenching grinding balls of ductile iron, using the aforementioned quenching equipment for ductile iron grinding balls, includes the following steps:

[0016] S1: Pour the grinding balls into the feeding hopper and into the storage bin. The weight is sensed by the tension gauge. When the specified threshold is reached, the pneumatic cylinder lowers the guide block and the storage bin, causing the feeding pipe to move towards the feed nozzle.

[0017] S2: During this process, the hopper moves down, causing the adjusting rod assembly to rotate outward. This, combined with the limit of the shielding bucket by the support arm, causes the shielding bucket to move outward, exposing the feed nozzle.

[0018] S3: Synchronization, the torque motor drives the support cover to rotate, opens the feeding pipe, and lowers the grinding balls inside the hopper into the quenching chamber;

[0019] S4: When the grinding ball falls, it first lands on the spring plate. The spring plate, in conjunction with the elasticity of the spring, weakens the impact of the falling grinding ball, allowing it to fall slowly into the quenching liquid.

[0020] S5: The pneumatic cylinder pulls the guide block and resets the hopper, causing the hopper to rise and the adjusting rod assembly to rotate downward. This, in conjunction with the support arm's limit on the baffle bucket, causes the baffle bucket to move downward, blocking the feed nozzle and preventing liquid from splashing.

[0021] S6: After quenching, the cover is opened by a combination of clips and buckles, and the grinding ball is retrieved through the hopper.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. In this invention, when the grinding balls are fed into the quenching chamber, the material holding chamber moves downward, causing the adjusting rod assembly to rotate outward. This, combined with the support arm limiting the blocking hopper, causes the blocking hopper to move outward, exposing the feed nozzle. After completion, the material holding chamber resets and rises, causing the adjusting rod assembly to rotate downward. This, combined with the support arm limiting the blocking hopper, causes the blocking hopper to move downward, blocking the feed nozzle. This facilitates linkage control, timely oblique connection, and prevents liquid splashing, eliminating safety hazards.

[0024] 2. By rotating the nut, the length of the first connecting rod and the second connecting rod penetrating into the adjusting component can be adjusted, thereby adjusting the length of the overall adjusting rod assembly. By rotating the shielding bucket and the support arm, and with the fastening bolts locked in the designated position in the adjusting groove, the angle of the shielding bucket and the support arm can be changed and fixed, thereby facilitating the adjustment of the distance and angle of the shielding bucket's movement to adapt to different feed nozzle shielding needs.

[0025] 3. In this invention, when the grinding balls fall from the feed nozzle, the elasticity of the spring plate and spring weakens the impact force of the falling grinding balls, allowing the grinding balls to fall slowly into the quenching liquid and reducing the wear of the grinding balls. Attached Figure Description

[0026] Figure 1 This is the front view of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure at point A of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure at point B of the present invention;

[0029] Figure 4 This is a schematic diagram of the force gauge of the present invention;

[0030] Figure 5 This is a schematic diagram of the sealing cap of the present invention.

[0031] The components are as follows: 1. Quenching chamber; 2. Guide rail; 3. Material holding hopper; 4. Guide block; 5. Feeding hopper; 6. Feeding pipe; 7. First hinge seat; 8. Shielding hopper; 9. Second hinge seat; 10. Support arm; 11. Cover; 12. Feed nozzle; 13. Mounting pad; 14. Pneumatic cylinder; 15. Tensile gauge; 16. Third hinge seat; 17. Support cover; 18. First connecting rod; 19. Adjusting component; 20. Second connecting rod; 21. Nut; 22. Adjusting groove; 23. Fastening bolt; 24. Chamber opening; 25. Liquid inlet pipe; 26. Liquid outlet pipe; 27. Clamping block; 28. Buckle; 29. ​​Spring plate; 30. Spring. Detailed Implementation

[0032] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention. Example 1

[0033] according to Figure 1 , 2 As shown in Figures 3, 4, and 5, this embodiment proposes a quenching device for grinding ductile iron balls, including a quenching chamber 1, a guide rail 2, and a material holding chamber 3. The quenching chamber 1 is filled with quenching liquid. The guide rail 2 is located on both sides above the quenching chamber 1, and guide blocks 4 are movably provided on the inner side of both sides of the guide rail 2. The material holding chamber 3 is located below the guide blocks 4. A feeding hopper 5 is provided at the middle position of the top of the material holding chamber 3, and a feeding pipe 6 is provided at the middle position of the bottom of the material holding chamber 3. An opening and closing component is provided at the lower end of the feeding pipe 6.

[0034] A first hinge seat 7 is provided on one side of the bottom of the material storage bin 3, and an adjusting rod assembly is rotatably connected to the first hinge seat 7. One end of the adjusting rod assembly is rotatably connected to the shielding bucket 8. A second hinge seat 9 is provided below the outer side of the guide rail 2 on one side, and both ends of the second hinge seat 9 are rotatably provided with support arms 10. The lower ends of the two sets of support arms 10 are connected to the two ends of the shielding bucket 8. A cover 11 is provided on the top of the quenching bin 1, and a feed nozzle 12 corresponding to the feeding pipe 6 is provided above the cover 11. In use, the grinding balls are poured into the feeding hopper 5 and into the holding bin 3. The tension gauge 15 senses the weight, and when the specified threshold is reached, the pneumatic cylinder 14 lowers the guide block 4 and the holding bin 3, causing the feeding pipe 6 to move towards the inlet 12. During this process, the holding bin 3 moves down, causing the adjusting rod assembly to rotate outward. With the support arm 10 limiting the blocking hopper 8, the blocking hopper 8 moves outward, exposing the inlet 12. Simultaneously, the torque motor drives the support cover 17 to rotate, opening the feeding pipe 6 and lowering the grinding balls inside the holding bin 3 into the quenching chamber 1. The pneumatic cylinder 14 pulls the guide block and the holding bin 3 to reset, causing the holding bin 3 to rise. This causes the adjusting rod assembly to rotate downward, and with the support arm 10 limiting the blocking hopper 8, the blocking hopper 8 moves downward, blocking the inlet 12 and preventing liquid splashing. After quenching, the cover 11 is opened, and the grinding balls are retrieved through the opening 24.

[0035] Each of the two sets of guide rails 2 has a mounting plate 13 on its upper outer side, and the guide rail 2 is fixed to the mounting base surface by the mounting plate 13. The mounting plate 13 is used to fix the position of the guide rail 2 on the mounting base surface.

[0036] A pneumatic cylinder 14 is installed at the top of the guide rail 2, and a tension gauge 15 is installed at the output end of the pneumatic cylinder 14. The lower end of the tension gauge 15 is connected to the guide block 4, and the signal output end of the tension gauge 15 is connected to the control terminal. The control end of the control terminal is connected to the pneumatic cylinder 14 and the opening and closing assembly. In use, the grinding balls are poured into the feeding hopper 5 and into the holding bin 3. The tension gauge 15 senses the weight. When the weight reaches a specified threshold, the pneumatic cylinder 14 lowers the guide block 4 and the holding bin 3, causing the feeding pipe 6 to move toward the feeding nozzle 12 and opening the opening and closing assembly. This helps to control the amount of material fed into the quenching chamber 1 and avoids excessive feeding.

[0037] The opening and closing assembly includes a third hinge seat 16 and a support cover 17. The third hinge seat 16 is located below one side of the feeding pipe 6. The support cover 17 is rotatably connected to the third hinge seat 16 and is adapted to the output port of the feeding pipe 6. A torque motor is provided on the third hinge seat 16, and the output end of the torque motor is connected to the support cover 17. In use, the torque motor drives the support cover 17 to rotate, opening the feeding pipe 6 and lowering the grinding balls inside the material storage bin 3 into the quenching bin 1.

[0038] The adjusting rod assembly includes a first connecting rod 18, an adjusting member 19, and a second connecting rod 20. One end of the first connecting rod 18 is rotatably connected to the first hinge seat 7, and one end of the second connecting rod 20 is rotatably connected to the inner side of the shielding bucket 8. The inner ends of both the first connecting rod 18 and the second connecting rod 20 pass through the adjusting member 19, and nuts 21 are threaded onto both sides of the positions where the first connecting rod 18 and the second connecting rod 20 pass through the adjusting member 19. The lower ends of the two sets of support arms 10 are rotatably connected to the two ends of the shielding bucket 8, and the lower ends of the interior of both sets of support arms 10 are provided with adjusting grooves 22. Fastening bolts 23 are provided on the adjusting grooves 22, and the fastening bolts 23 are used to fix the support arms 10 and the shielding bucket 8. In use, rotating the nut 21 can adjust the length of the first connecting rod 18 and the second connecting rod 20 penetrating into the adjusting member 19, thereby adjusting the length of the overall adjusting rod assembly. By rotating the shielding bucket 8 and the support arm 10, and cooperating with the fastening bolt 23 to lock in the designated position in the adjusting groove 22, the angle of the shielding bucket 8 and the support arm can be changed and fixed, thereby facilitating the adjustment of the distance and angle of the shielding bucket 8's movement to adapt to the shielding needs of different feed nozzles 12.

[0039] The quenching chamber 1 has an opening 24 at the top, and an inlet pipe 25 is located above one side of the quenching chamber 1. A drain pipe 26 is located below the other side of the quenching chamber 1, and a valve is installed on the drain pipe 26. Quenching fluid is added into the quenching chamber 1 through the inlet pipe 25. After quenching, the valve is opened, and the quenching fluid is discharged through the drain pipe 26.

[0040] The cover 11 is adapted to the opening 24, and both sides of the cover 11 are provided with locking blocks 27. The inner side of the locking block 27 is provided with locking holes, and the upper sides of both sides of the quenching chamber 1 are provided with buckles 28 adapted to the locking holes. After quenching, the cover 11 is opened by the combination of locking blocks 27 and buckles 28, and the grinding ball is retrieved through the opening 24.

[0041] Both sides of the bottom of the cover 11 are rotatably equipped with spring plates 29, and one side of the spring plate 29 extends to the feed nozzle 12. A spring 30 is connected between the top side of the spring plate 29 and the cover 11. When the grinding ball falls from the feed nozzle 12, the elasticity of the spring plate 29 and the spring 30 weakens the impact force of the falling grinding ball, allowing the grinding ball to fall slowly into the quenching liquid and reducing the wear of the grinding ball. Example 2

[0042] according to Figure 1 , 2 As shown in Figures 3, 4, and 5, this embodiment proposes a process method for quenching grinding balls of ductile iron, including the following steps:

[0043] S1: Pour the grinding balls into the feeding hopper 5 and into the holding bin 3. The weight is sensed by the tension gauge 15. When the specified threshold is reached, the pneumatic cylinder 14 lowers the guide block 4 and the holding bin 3, so that the feeding pipe 6 moves toward the feeding nozzle 12.

[0044] S2: During this process, the hopper 3 moves down, causing the adjusting rod assembly to rotate outward, which, together with the support arm 10, limits the blocking bucket 8, causing the blocking bucket 8 to move outward and expose the feed nozzle 12.

[0045] S3: Synchronization, the torque motor drives the support cover 17 to rotate, opens the feeding pipe 6, and lowers the grinding balls inside the material storage bin 3 into the quenching bin 1.

[0046] S4: When the grinding ball falls, it first lands on the spring plate 29. Through the elastic action of the spring plate 29 and the spring 30, the impact force of the grinding ball falling is weakened, so that the grinding ball falls slowly into the quenching liquid; reducing the wear of the grinding ball.

[0047] S5: The pneumatic cylinder 14 pulls the guide block and resets the hopper 3, causing the hopper 3 to rise, which in turn causes the adjusting rod assembly to rotate downward. This, in conjunction with the support arm 10 limiting the shielding bucket 8, causes the shielding bucket 8 to move downward, blocking the feed nozzle 12 and preventing liquid splashing. This facilitates linkage control, timely oblique connection, and prevention of liquid splashing, eliminating any safety hazards.

[0048] S6: After quenching, the cover 11 is opened by the combination of the locking block 27 and the buckle 28, and the grinding ball is retrieved through the opening 24.

[0049] In this invention, when the grinding balls are fed into the quenching chamber 1, the material holding chamber 3 moves downward, causing the adjusting rod assembly to rotate outward. This, combined with the limiting action of the support arm 10 on the blocking hopper 8, causes the blocking hopper 8 to move outward, exposing the feed nozzle 12. After completion, the material holding chamber 3 returns to its original position and rises, causing the adjusting rod assembly to rotate downward. Again, this time, the limiting action of the support arm 10 causes the blocking hopper 8 to move downward, blocking the feed nozzle 12. This facilitates linkage control, timely oblique connection, and prevents liquid splashing, eliminating safety hazards. Furthermore, by rotating the nut 21, the lengths of the first connecting rod 18 and the second connecting rod 20 penetrating into the adjusting component 19 can be adjusted, thereby adjusting the overall length of the adjusting rod assembly. By rotating the blocking hopper 8 and the support arm 10, and with the fastening bolt 23 engaged in a designated position within the adjusting groove 22, the angle of the blocking hopper 8 and the support arm can be changed and fixed. This facilitates adjustment of the distance and angle of movement of the blocking hopper 8, adapting to different feed nozzle 12 blocking requirements. Meanwhile, as the grinding balls fall from the feed nozzle 12, the elasticity of the spring plate 29 and the spring 30 weakens the impact force of the falling grinding balls, allowing them to fall slowly into the quenching liquid and reducing wear on the grinding balls.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quenching equipment for grinding ductile iron balls, comprising a quenching chamber (1), a guide rail (2), and a material holding chamber (3), characterized in that: The quenching chamber (1) is filled with quenching liquid. The guide rail (2) is located on both sides above the quenching chamber (1). The guide rail (2) on both sides is movably provided with guide blocks (4) on its inner side. The material storage chamber (3) is located below the guide blocks (4). The material storage chamber (3) is provided with a feeding hopper (5) at the middle position of the top of the material storage chamber (3). The material storage chamber (3) is provided with a feeding pipe (6) at the middle position of the bottom of the material storage chamber (3). The lower end of the feeding pipe (6) is provided with an opening and closing component. The bottom of the hopper (3) is provided with a first hinge seat (7) on one side, and an adjusting rod assembly is rotatably connected to the first hinge seat (7). One end of the adjusting rod assembly is rotatably connected to a shielding bucket (8). A second hinge seat (9) is provided below the outer side of the guide rail (2) on one side, and both ends of the second hinge seat (9) are rotatably provided with support arms (10). The lower ends of the two sets of support arms (10) are connected to the two ends of the shielding bucket (8). The top of the quenching chamber (1) is provided with a cover (11), and a feed nozzle (12) corresponding to the feeding pipe (6) is provided above the cover (11).

2. The quenching equipment for grinding ductile iron balls according to claim 1, characterized in that: Both sets of guide rails (2) are provided with mounting pads (13) on the upper outer side, and the guide rails (2) are fixed to the mounting base by the mounting pads (13).

3. The quenching equipment for grinding ductile iron balls according to claim 2, characterized in that: The top of the guide rail (2) is provided with a pneumatic cylinder (14), and the output end of the pneumatic cylinder (14) is provided with a tension gauge (15). The lower end of the tension gauge (15) is connected to the guide block (4). The signal output end of the tension gauge (15) is connected to the control terminal, and the control end of the control terminal is connected to the pneumatic cylinder (14) and the opening and closing assembly.

4. The quenching equipment for grinding balls of ductile iron according to claim 3, characterized in that: The opening and closing assembly includes a third hinge seat (16) and a support cover (17). The third hinge seat (16) is located below one side of the feeding pipe (6). The support cover (17) is rotatably connected to the third hinge seat (16) and is adapted to the output port of the feeding pipe (6). A torque motor is provided on the third hinge seat (16), and the output end of the torque motor is connected to the support cover (17).

5. The quenching equipment for grinding ductile iron balls according to claim 4, characterized in that: The adjusting rod assembly includes a first connecting rod (18), an adjusting member (19), and a second connecting rod (20). One end of the first connecting rod (18) is rotatably connected to the first hinge seat (7), and one end of the second connecting rod (20) is rotatably connected to the inner side of the shielding bucket (8). The inner ends of the first connecting rod (18) and the second connecting rod (20) both penetrate the adjusting member (19), and nuts (21) are threaded on both sides of the position where the first connecting rod (18) and the second connecting rod (20) penetrate the adjusting member (19).

6. The quenching equipment for grinding ductile iron balls according to claim 5, characterized in that: The lower ends of the two sets of support arms (10) are rotatably connected to the two ends of the shielding bucket (8), and the lower ends of the two sets of support arms (10) are provided with adjustment grooves (22). The adjustment grooves (22) are provided with fastening bolts (23), which are used to fix the support arms (10) and the shielding bucket (8).

7. The quenching equipment for grinding ductile iron balls according to claim 6, characterized in that: The top of the quenching chamber (1) is provided with a chamber opening (24), and an inlet pipe (25) is provided above one side of the quenching chamber (1), and a drain pipe (26) is provided below the other side of the quenching chamber (1), with a valve on the drain pipe (26).

8. The quenching equipment for grinding ductile iron balls according to claim 7, characterized in that: The cover (11) is adapted to the opening (24), and both sides of the cover (11) are provided with locking blocks (27). The inner side of the locking block (27) is provided with locking holes, and the upper sides of both sides of the quenching chamber (1) are provided with buckles (28) adapted to the locking holes.

9. The quenching equipment for grinding ductile iron balls according to claim 8, characterized in that: Both sides of the bottom of the cover (11) are provided with spring plates (29), and one side of the spring plate (29) extends to the feed nozzle (12). A spring (30) is connected between the top side of the spring plate (29) and the cover (11).

10. A process method for quenching grinding balls of ductile iron, using the quenching grinding ball equipment for ductile iron as described in claim 8, characterized in that... Includes the following steps: S1: Pour the grinding balls into the feeding hopper (5) and into the holding bin (3). The weight is sensed by the tension gauge (15). When the specified threshold is reached, the pneumatic cylinder (14) lowers the guide block (4) and the holding bin (3), so that the feeding pipe (6) moves toward the feed nozzle (12). S2: During this process, the hopper (3) moves down, causing the adjusting rod assembly to rotate outward, which, together with the support arm (10) limiting the blocking bucket (8), causes the blocking bucket (8) to move outward and expose the feed nozzle (12). S3: Synchronization, the torque motor drives the support cover (17) to rotate, opens the feeding pipe (6), and lowers the grinding balls inside the hopper (3) into the quenching chamber (1); S4: When the grinding ball falls, it first lands on the spring plate (29). Through the elastic action of the spring plate (29) and the spring (30), the impact force of the grinding ball falling is weakened, so that the grinding ball falls slowly into the quenching liquid. S5: The pneumatic cylinder (14) pulls the guide block and the hopper (3) to reset, the hopper (3) rises, causing the adjusting rod assembly to rotate downwards, and in conjunction with the support arm (10) to limit the blocking bucket (8), the blocking bucket (8) moves downwards to block the feed nozzle (12) and prevent liquid from splashing. S6: After quenching, the cover (11) is opened by the combination of the locking block (27) and the buckle (28), and the grinding ball is retrieved through the opening (24).

Images