A CNC grinding machine cooling water sand filtration device

Abstract

This utility model provides a cooling water sand filtration device for CNC grinding machines, relating to the field of cooling water sand filtration technology. The device includes a water storage tank, a mounting frame, a rotating shaft, a motor, a sprocket, a conveyor belt, a chain, a lock mesh, a mounting groove, a storage box, and a support groove. Rotary rollers are positioned above the two support grooves, with filter paper wound around their outer surfaces. A cover plate with a water inlet is mounted on the mounting frame. The filter paper effectively filters sand particles in the cooling water. The movement of the conveyor belt and lock mesh within the water storage tank continuously moves the filter paper, transferring the filter paper and sand particles from the tank. This prevents excessive sand accumulation and clogging of the filter paper, and also prevents sand particles from re-entering the water storage tank. This achieves high-quality and efficient filtration of the cooling water, resulting in excellent performance.

Description

Technical Field

[0001] This utility model relates to the field of cooling water sand filtration technology, specifically a cooling water sand filtration device for CNC grinding machines. Background Technology

[0002] During the operation of a CNC grinding machine, the abrasive particles generated by the contact between the grinding wheel and the workpiece mix with the cooling water. Since a large amount of cooling water is required during grinding, and in order to improve the utilization rate of water resources, the cooling water is often reused after filtration. In this process, a filtration device is used. Existing filtration devices often filter abrasive particles through a filter screen / cloth. However, because abrasive particles continuously accumulate on the filter screen / cloth, it is easy to become clogged, affecting the efficiency of cooling water flow and making it difficult to meet the usage requirements. Utility Model Content

[0003] The purpose of this invention is to provide a cooling water sand filtration device for CNC grinding machines, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The CNC grinding machine cooling water sand filtration device includes a water storage tank with an opening at the top. A movable mounting frame is provided at the top of the water storage tank. Two rotating shafts are provided on the mounting frame. A motor for driving the rotating shafts is provided on one side of the mounting frame. Sprockets are provided at both ends of the two rotating shafts. The device also includes an annular conveyor belt. Chains that cooperate with the sprockets are provided on both sides of the conveyor belt. Lock meshes are provided on both sides of the conveyor belt. Mounting grooves for supporting the lock meshes are provided inside the mounting frame. A storage box communicating with the water storage tank is provided on the mounting frame. Support grooves are provided on both sides of the storage box. A rotating roller is provided above the two support grooves. Filter paper is wound on the outer surface of the rotating roller. A cover plate is provided on the mounting frame, and a water inlet is provided on the cover plate.

[0005] Preferably, a guide plate is provided on the cover plate and below the water inlet, and the guide plate is provided with evenly spaced water leakage holes.

[0006] Preferably, a collection trough is provided at one end of the water storage tank.

[0007] Preferably, the water storage tank is provided with a partition, which divides the water storage tank into a sedimentation chamber and a cooling chamber. A refrigeration device and a water pump are provided on the water storage tank and above the cooling chamber.

[0008] Preferably, the rotating shaft is provided with a disc for supporting the conveyor belt.

[0009] The beneficial effects of this utility model are:

[0010] The filter paper in this device can effectively filter sand particles in cooling water. Through the movement of the conveyor belt and lock mesh within the water storage tank, the filter paper is continuously moved, thereby transferring the filter paper and the sand particles on it out of the water storage tank. This prevents the large accumulation of sand particles that could clog the filter paper and also prevents the sand particles on the filter paper from re-entering the water storage tank. As a result, it achieves high-quality and high-efficiency filtration of cooling water, with excellent performance. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0012] Figure 2 This is a structural schematic diagram of another specific embodiment of the present invention.

[0013] Figure 3 This is a top view of the mounting slot.

[0014] Figure 4 This is a top view of the conveyor belt and lock net.

[0015] Figure 5 This is a side view of the water storage tank.

[0016] Figure 6 This is a structural diagram of the cover plate and the guide plate.

[0017] In the diagram: 1. Water storage tank; 2. Mounting frame; 3. Rotating shaft; 4. Motor; 5. Conveyor belt; 6. Chain; 7. Lock mesh; 8. Mounting groove; 9. Storage box; 10. Support groove; 11. Rotating roller; 12. Filter paper; 13. Cover plate; 14. Water inlet; 15. Guide plate; 16. Drain hole; 17. Collection tank; 18. Baffle plate; 19. Sedimentation chamber; 20. Cooling chamber; 21. Refrigeration equipment; 22. Water pump; 23. Disc. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] like Figure 1-6As shown, a CNC grinding machine cooling water sand filtration device includes a water storage tank 1 with an opening at the top. A movable mounting frame 2 is provided at the top of the water storage tank 1. Two rotating shafts 3 are provided on the mounting frame 2. A motor 4 for driving the rotating shafts 3 is provided on one side of the mounting frame 2. Both ends of the two rotating shafts 3 are provided with sprockets. The device also includes an annular conveyor belt 5. Chains 6 that cooperate with the sprockets are provided on both sides of the conveyor belt 5. Lock mesh 7 is provided on both sides of the conveyor belt 5. The mounting frame 2 has mounting grooves 8 for supporting the lock mesh 7. A storage box 9 that communicates with the water storage tank 1 is provided on the mounting frame 2. Support grooves 10 are provided on both sides of the storage box 9. A rotating roller 11 is provided above the two support grooves 10. Filter paper 12 is wound on the outer surface of the rotating roller 11. A cover plate 13 is provided on the mounting frame 2. A water inlet 14 is provided on the cover plate 13.

[0020] Before filtering sand particles from the cooling water, the filter device requires placing the roller 11, with filter paper 12 wound around it, onto the two support slots 10 inside the storage box 9. Figure 5 As shown, the support groove 10 has a U-shaped opening at the top to facilitate the quick placement and removal of the rotating roller 11. After the rotating roller 11 is placed, one end of the filter paper 12 wrapped on the rotating roller 11 is pulled out and passes over the conveyor belt 5 and the lock net 7. The water storage tank 1 has an outlet on one side. After passing the conveyor belt 5 and the lock net 7, the filter paper 12 is removed from the outlet. Since the filter paper 12 has its own weight, it can naturally press on the conveyor belt 5 and the lock net 7. Even when the filter paper 12 is wet, it can still press on the conveyor belt 5 and the lock net 7.

[0021] Because the mounting slot 8 is tilted, such as Figure 3 and Figure 4 As shown, in this case, the height of both ends of the conveyor belt 5 is higher than the height of the middle of the conveyor belt 5, and the height of the lock mesh 7 on both sides is not lower than the height of the adjacent conveyor belt 5, so that the sand particles can move towards the center area of ​​the conveyor belt 5 under the action of gravity, reducing the sand particles from entering the water storage tank 1 from the side of the lock mesh 7.

[0022] Simultaneously, by starting the motor 4, one of the shafts 3 is driven to rotate. Since both shafts 3 are equipped with sprockets, and the sprockets on the shafts 3 cooperate with the chain 6 on the conveyor belt 5, when one shaft 3 rotates, it will drive both shafts 3 to rotate simultaneously through the transmission of the chain 6, thereby driving the conveyor belt 5 and the lock net 7 to rotate. The lock net 7 is also circular. When the conveyor belt 5 and the lock net 7 rotate within the mounting frame 2, the friction between the conveyor belt 5 and the lock net 7 and the filter paper 12 can pull the filter paper 12 to move, so that the roller 11 can continuously release the filter paper 12. After passing through the conveyor belt 5 and the lock net 7, the filter paper 12 is directly removed from one side opening of the water storage tank 1 and will not re-enter the water storage tank 1. That is, the filter paper 12 is a disposable item.

[0023] After completing the above preparations, cooling water is introduced into the water storage tank 1 through the inlet 14. The cooling water first comes into contact with the filter paper 12, pressing the filter paper 12 onto the conveyor belt 5 and the lock screen 7. After passing through the filter paper 12, most of the sand particles remain on the filter paper 12. The filtered cooling water then enters below the filter paper 12, that is, into the bottom of the water storage tank 1. As the motor 4 starts, it drives the conveyor belt 5 and the lock screen 7 to rotate, and drives the filter paper 12 above to move. Therefore, the sand particles on the filter paper 12 are moved out of the water storage tank 1 along with the filter paper 12. Since the filter paper 12 is a disposable item, and new filter paper 12 is constantly entering the water storage tank 1 for filtration on the roller 11, while used filter paper 12 is constantly conveyed out, the filter paper 12 will not have too much sand accumulation, which would reduce the filtration efficiency of the cooling water. At the same time, it will also reduce the amount of sand particles entering the water storage tank 1.

[0024] The first end of the filter paper 12 is located outside the water storage tank 1 and is pressed against the conveyor belt 5 and the lock net 7 by its own weight. Therefore, there is sufficient friction between the filter paper 12 and the conveyor belt 5 and the lock net 7. At the same time, the water level entering the water storage tank 1 is controlled to a height that does not completely submerge the conveyor belt 5, ensuring that the filter paper 12 can always be in direct contact with the conveyor belt 5 and the lock net 7 to provide sufficient friction.

[0025] Furthermore, a guide plate 15 is provided on the cover plate 13 and below the water inlet 14. The guide plate 15 has evenly spaced water leakage holes 16 to prevent water flow from concentrating on a certain position, thereby dispersing the water flow entering the water storage tank 1 and improving the filtration effect.

[0026] Furthermore, a collection trough 17 is provided at one end of the water storage tank 1 to facilitate the collection and storage of used filter paper 12.

[0027] Furthermore, a partition 18 is installed inside the water storage tank 1, dividing the water storage tank 1 into a sedimentation chamber 19 and a cooling chamber 20. A refrigeration device 21 and a water pump 22 are installed on the water storage tank 1 and above the cooling chamber 20. Due to the presence of the filter paper 12, the cooling water entering the water storage tank 1 will not directly impact the bottom of the water storage tank 1. Therefore, the cooling water at the bottom of the water storage tank 1 is in a relatively stable state, so that some sand particles entering the water storage tank 1 will not be impacted by the water flow and float up again. Due to the restriction of the partition 18, the sand particles at the bottom of the water storage tank 1 that cannot float up again can only be... The water is contained in the sedimentation chamber 19 within the water storage tank 1 and cannot enter the cooling chamber 20, ensuring that the cooling water in the cooling chamber 20 is free of sand particles. Since the cooling water is heated during use in the CNC grinding machine, in order to achieve a good cooling effect, the cooling water in the cooling chamber 20 can be cooled by the refrigeration equipment 21 to lower the water temperature in the cooling chamber 20 to a certain level, such as 35°C. After the cooling water is cooled, the water in the cooling chamber 20 is pumped out by the water pump 22 and transported back to the CNC grinding machine for use.

[0028] A level gauge is installed on the water storage tank 1 to monitor the liquid level in the cooling chamber 20. When the liquid level in the cooling chamber 20 is 2 / 3 of its maximum liquid level, the supply of unfiltered cooling water to the inlet 14 is stopped. After the cooling water is cooled to a certain temperature, the cooling water in the cooling chamber 20 is pumped out by the water pump 22 until the liquid level in the cooling chamber 20 is at a lower level, such as 1 / 4 of the maximum liquid level. Then, the supply of unfiltered cooling water to the water storage tank 1 continues through the inlet 14. The supply of cooling water to the water storage tank 1 through the inlet 14 can be manually controlled by the operator, or it can be controlled by a corresponding level sensor and PLC controller.

[0029] Furthermore, a disc 23 is provided on the rotating shaft 3 to support the conveyor belt 5. The disc 23 facilitates the support of the conveyor belt 5, thereby improving the stability of the conveyor belt 5.

[0030] The bottom of the mounting bracket 2 has rollers. When it is necessary to clean the sand particles settled in the sedimentation chamber 19 in the water storage tank 1, simply push the mounting bracket 2 to move. When the mounting bracket 2 moves, the upper opening of the cooling chamber 20 in the water storage tank 1 can be fully exposed, thus facilitating the cleaning of the bottom of the sedimentation chamber 19 by the staff.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A cooling water sand filtration device for a CNC grinding machine, characterized in that, The device includes a water storage tank with an opening at the top. A movable mounting frame is provided at the top of the water storage tank. Two rotating shafts are mounted on the mounting frame. A motor for driving the rotating shafts is provided on one side of the mounting frame. Both ends of the two rotating shafts are provided with sprockets. The device also includes a ring-shaped conveyor belt. Chains that cooperate with the sprockets are provided on both sides of the conveyor belt. Lock mesh is provided on both sides of the conveyor belt. The mounting frame has mounting grooves for supporting the lock mesh. A storage box that communicates with the water storage tank is provided on the mounting frame. Support grooves are provided on both sides of the storage box. A rotating roller is provided above the two support grooves. Filter paper is wound on the outer surface of the rotating roller. A cover plate is provided on the mounting frame, and a water inlet is provided on the cover plate.

2. The CNC grinding machine cooling water sand filtration device according to claim 1, characterized in that, A guide plate is provided on the cover plate and below the water inlet, and the guide plate is provided with evenly spaced water leakage holes.

3. The CNC grinding machine cooling water sand particle filtering device according to claim 1, characterized in that, A collection trough is provided at one end of the water storage tank.

4. The CNC grinding machine cooling water sand particle filtering device according to claim 1, characterized in that, The water storage tank is equipped with a partition that divides the water storage tank into a sedimentation chamber and a cooling chamber. A refrigeration device and a water pump are installed on the water storage tank and above the cooling chamber.

5. The CNC grinding machine cooling water sand particle filtering device according to any one of claims 1-4, characterized in that, The rotating shaft is equipped with a disc for supporting the conveyor belt.

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