Water circulation device for separating clean water from turbid water for medium-speed wire cutting equipment

Abstract

The utility model belongs to the technical field of water circulation systems, and particularly relates to a water circulation device for separating clean water from turbid water for medium-speed wire cutting equipment. Comprising a first water collecting pool, a second water collecting pool and a water storage pool which are located below a workbench of the medium-speed wire feeding equipment, a partition plate is fixedly installed in the water storage pool, a temperature sensor is arranged in the water storage pool, and the water storage pool is provided with a heating rod and a cooler corresponding to the temperature sensor; a water outlet pipe of the second water pump corresponds to a workbench of the medium-speed wire feeding device. By means of corresponding layer-by-layer filtration, metal scraps located below cooling liquid are effectively filtered and removed, available cooling liquid can be used for the second time, and waste of the cooling liquid is avoided as much as possible; through the design of a temperature sensor, a heating rod and a cooler, when the water temperature is lower than a set lower limit value, the heating rod is started to increase the water temperature; and when the water temperature is higher than the set upper limit value, the cooler works, the water temperature is reduced, and the cooling effect and fluidity of the cooling liquid are good.

Description

Technical Field

[0001] This utility model belongs to the technical field of water circulation systems, specifically relating to a water circulation device for separating clear and turbid water in a wire EDM machine. Background Technology

[0002] Medium-speed wire EDM (Medium-Speed ​​EDM) is a machine tool that uses the principle of electric spark discharge to cut metal materials. It falls between fast-speed and slow-speed wire EDM, combining some of the characteristics of both, achieving a good balance in terms of machining accuracy, surface quality, and processing efficiency. During the machining process of medium-speed wire EDM, the high temperature generated by the discharge can cause thermal deformation of the electrode wire and the workpiece. For example, after the electrode wire expands due to heat, its tension changes, leading to uneven discharge gap between the electrode wire and the workpiece, thus affecting cutting accuracy. Water cooling can effectively remove the heat generated during processing, reducing thermal deformation and making machining accuracy more stable.

[0003] During wire EDM, a large amount of metal shavings and impurities are generated. These shavings and impurities are typically denser than the coolant and gradually settle to the bottom, causing stratification. When the coolant stratifies, its overall thermal conductivity is affected, and uneven cooling can lead to inconsistent thermal deformation of the electrode wire and the workpiece. The lower layer of the stratified coolant may accumulate more metal ions and impurities. These substances may react with the chemical components in the coolant, producing corrosive substances that can corrode the metal components of the equipment (such as the electrode wire guide and worktable). To address these issues, a water circulation device for separating clear and turbid water in a wire EDM machine is proposed. Utility Model Content

[0004] To address the problems existing in the background technology, this utility model provides a water circulation device for separating clear and turbid water in a wire EDM machine; it can effectively remove the lower layer of metal debris after stratification, ensuring the overall cooling effect.

[0005] This utility model provides a water circulation device for separating clear and turbid water in a wire EDM machine, including a water collection tank 1 located below the workbench of the wire EDM machine. The water collection tank 1 is equipped with a bottom debris scraping mechanism. One side of the water collection tank 1 is connected to a connecting pipe 1, and the other end of the connecting pipe 1 is connected to a water collection tank 2. The water collection tank 2 is equipped with a filtration mechanism. One side of the water collection tank 2 is connected to a water pump 1, and the other end of the water pump 1 is connected to a water storage tank. A partition is fixedly installed in the water storage tank, and the bottom of the partition is hollow. A temperature sensor is installed in the water storage tank. The water storage tank is equipped with a heating rod and a cooler corresponding to the temperature sensor. One side of the water storage tank is connected to the water pump 2, and the outlet pipe of the water pump 2 is set to correspond to the workbench of the wire EDM machine.

[0006] Furthermore, the bottom debris scraping mechanism includes a motor located on the water collection tank, a screw fixedly connected to the output end of the motor, a connecting plate threadedly connected to the screw, a filter screen fixedly installed at the lower end of the connecting plate, the filter screen slidingly connected to the inner bottom surface of the water collection tank, and a slag discharge pipe symmetrically connected to the lower side of the water collection tank.

[0007] Furthermore, a limiting rod is fixedly installed on the upper side of the water collection tank, and the limiting rod is plugged into the connecting plate.

[0008] Furthermore, the filtration mechanism includes protrusions uniformly fixedly arranged in the second water collection tank, a filter plate is slidably connected between the protrusions, and pull rings are uniformly fixedly installed on the filter plate.

[0009] Furthermore, a movable plate is inserted and connected at the outlet of the second water collection tank, and a filter screen is fixedly installed on the movable plate corresponding to the outlet.

[0010] Furthermore, a slag discharge pipe is connected to the lower part of the water collection tank.

[0011] Furthermore, a second filter plate is fixedly installed in the water storage tank by bolts. The second filter plate has a hollow center and the upper and lower layers of the second filter plate have different mesh counts.

[0012] The beneficial effects of this utility model are:

[0013] This invention effectively filters and removes metal debris located below the coolant through corresponding multi-layer filtration, enabling the usable coolant to be reused and minimizing coolant waste. Through the design of a temperature sensor, heating rod, and cooler, the heating rod activates to raise the water temperature when it falls below a set lower limit, and the cooler operates to lower the water temperature when it rises above a set upper limit, resulting in good cooling effect and fluidity of the coolant. Attached Figure Description

[0014] Figure 1 This is a front-view top-view perspective view of a water circulation device for separating clear and turbid water in a wire EDM machine according to the present invention.

[0015] Figure 2 This is a rear-view top-view perspective view of a water circulation device for separating clear and turbid water in a wire EDM machine according to the present invention.

[0016] Figure 3 This is a front-view, bottom-view perspective view of a water circulation device for separating clear and turbid water in a wire EDM machine according to the present invention.

[0017] Figure 4This is a schematic diagram of the bottom debris scraping mechanism of a water circulation device for separating clear and turbid materials in a wire EDM machine according to the present invention.

[0018] Figure 5 This is a schematic diagram of a filter plate of a water circulation device for separating clear and turbid fluids in a wire EDM machine according to the present invention.

[0019] Figure 6 This is a schematic diagram of the movable plate of a water circulation device for separating clear and turbid water in a wire EDM machine according to the present invention.

[0020] Figure 7 This is a schematic diagram of the filter plate 2 of a water circulation device for separating clear and turbid water in a wire EDM machine according to the present invention.

[0021] As shown in the figure:

[0022] 1. Water collection tank one, 2. Connecting pipe one, 3. Water collection tank two, 4. Water pump one, 5. Water storage tank, 6. Baffle plate, 7. Temperature sensor, 8. Water pump two, 9. Motor, 10. Screw, 11. Connecting plate, 12. Filter screen one, 13. Slag discharge pipe one, 14. Limiting rod, 15. Protrusion, 16. Filter plate one, 17. Pull ring, 18. Movable plate, 19. Filter screen two, 20. Slag discharge pipe two, 21. Filter plate two, 22. Hollowed-out. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0025] Please refer to the accompanying diagrams in all instruction manuals:

[0026] A water circulation device for separating clear and turbid water in a wire EDM machine includes a water collection tank 1 located below the workbench of the wire EDM machine. The water collection tank 1 is equipped with a bottom debris scraping mechanism. One side of the water collection tank 1 is connected to a connecting pipe 2, and the other end of the connecting pipe 2 is connected to a water collection tank 3. A filter mechanism is installed in the water collection tank 3. One side of the water collection tank 3 is connected to a water pump 4, and the other end of the water pump 4 is connected to a water storage tank 5. A partition 6 is fixedly installed in the water storage tank 5. The bottom of the partition 6 is hollow. A temperature sensor 7 is installed in the water storage tank 5. A heating rod and a cooler are provided in the water storage tank 5 corresponding to the temperature sensor 7. One side of the water storage tank 5 is connected to a water pump 8, and the outlet pipe of the water pump 8 is set to correspond to the workbench of the wire EDM machine.

[0027] When the electrode wire expands due to heat, its tension changes, leading to uneven discharge gaps between the electrode wire and the workpiece, which in turn affects cutting accuracy. Cooling with water can effectively remove the heat generated during processing, reduce thermal deformation, and make processing accuracy more stable.

[0028] As described above, initially, only the reservoir 5 contains brand-new coolant. After being pressurized by the second pump 8, the coolant is cooled down along with the corresponding electrode wire and flows into the first collection tank 1 along with the cut metal scraps. Due to the large volume of the first collection tank 1, the initially mixed coolant accumulates on the inner bottom surface of the first collection tank 1. As the amount of mixed liquid in the first collection tank 1 increases, it eventually enters the second collection tank 3 through the connecting pipe 2 and is filtered by the filtration mechanism, completing the first step of preliminary filtration. Then, the first pump 4 introduces the mixed liquid into the reservoir 5, where it is filtered by the second filter plate 21. The second filter plate 21 has two different filtration capabilities, which can fully separate the solid and liquid components of the mixed liquid. The separated coolant enters the reservoir 5 through the perforation under the partition 6 and is analyzed by the temperature sensor 7.

[0029] For water cooling in wire EDM equipment, the ideal water temperature is generally between 20-30℃. Within this temperature range, the cooling effect and fluidity of the coolant are both good. Excessively high water temperature will reduce cooling efficiency, while excessively low water temperature may cause condensation on the equipment surface, affecting its normal operation.

[0030] The water temperature is adjusted by controlling the heating rod or cooler through the central controller, and finally re-enters the wire EDM equipment through the water pump 28 for cooling.

[0031] As a technical optimization of this utility model, the bottom debris scraping mechanism includes a motor 9 located on the water collection tank 1, a screw 10 fixedly connected to the output end of the motor 9, a connecting plate 11 threadedly connected to the screw 10, a filter screen 12 fixedly installed at the lower end of the connecting plate 11, the filter screen 12 being slidably connected to the inner bottom surface of the water collection tank 1, and a slag discharge pipe 13 symmetrically connected to the lower side of the water collection tank 1.

[0032] As can be seen from the above description, after enough metal debris has accumulated in the inner bottom area of ​​the water collection tank 1, the motor 9 is started to work, driving the screw 10 to rotate, driving the connecting plate 11 to move, and driving the filter screen 12 to move back and forth, scraping the metal debris at the bottom to both sides, and discharging the debris through the slag discharge pipe 13.

[0033] As a technical optimization of this utility model, a limiting rod 14 is fixedly installed on the upper side of the water collection tank 1, and the limiting rod 14 is plugged into the connecting plate 11.

[0034] As can be seen from the above description, the limiting rod 14 can increase the stability of the movement of the connecting plate 11.

[0035] As a technical optimization of this utility model, the filtration mechanism includes protrusions 15 uniformly fixedly arranged in the water collection tank 2 3, filter plate 16 slidably connected between the protrusions 15, and pull rings 17 uniformly fixedly installed on the filter plate 16.

[0036] As can be seen from the above description, the filter plate 16 can be replaced or maintained regularly, and can be easily removed by the pull ring 17, ensuring the overall filtration efficiency.

[0037] As a technical optimization of this utility model, a movable plate 18 is inserted and connected at the outlet of the water collection tank 2 3, and a filter screen 2 19 is fixedly installed on the movable plate 18 corresponding to the water outlet.

[0038] As can be seen from the above description, the filter screen 19 on the movable plate 18 can also filter the mixed liquid, reduce the filtration pressure in the water storage tank 5 as much as possible, and improve the overall filtration efficiency. Similarly, the movable plate 18 can be replaced or maintained regularly to ensure efficient filtration.

[0039] As a technical optimization of this utility model, a slag discharge pipe 20 is connected to the bottom of the water collection tank 2 3;

[0040] As can be seen from the above description, the inner bottom surface of the water collection tank 23 can be cleaned regularly through the slag discharge pipe 20.

[0041] As a technical optimization of this utility model, a filter plate 21 is fixedly installed in the water storage tank 5 by bolts. The filter plate 21 has a hollow 22 in the middle and the upper and lower layers of the filter plate 21 have different mesh counts.

[0042] As can be seen from the above description, filter plate 21 has two different filtration capabilities, which can fully separate the solid and liquid mixture.

[0043] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0044] The working process of this utility model is as follows:

[0045] Initially, only the reservoir 5 contains brand-new coolant. Pressurized by pump 8, the coolant cools the corresponding electrode wire and flows into the collection tank 1 along with the cut metal scraps. Due to the large volume of collection tank 1, the initial mixed coolant accumulates at the bottom. As the amount of mixed coolant in collection tank 1 increases, it eventually enters collection tank 3 through connecting pipe 2 and is filtered by the filtration mechanism, completing the first preliminary filtration step. Next, pump 4 guides the mixed coolant into reservoir 5, where it is filtered by filter plate 21. Filter plate 21 has two different filtration capabilities, effectively separating the solid and liquid components. The separated coolant enters reservoir 5 through the perforation under partition 6, where temperature is analyzed by temperature sensor 7. The central controller controls the heating rod or cooler to adjust the water temperature, and finally, pump 8 re-enters the wire feeding equipment for further cooling.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A water circulation device for separating clear and turbid water in a medium-speed wire EDM machine, comprising a water collection tank located below the workbench of the medium-speed wire EDM machine, characterized in that: The first water collection tank is equipped with a bottom debris scraping mechanism. One side of the first water collection tank is connected to a connecting pipe, and the other end of the connecting pipe is connected to a second water collection tank. The second water collection tank is equipped with a filtration mechanism. One side of the second water collection tank is connected to a water pump, and the other end of the water pump is connected to a storage tank. A partition is fixedly installed in the storage tank, and the bottom of the partition is hollow. A temperature sensor is installed in the storage tank. The storage tank is equipped with a heating rod and a cooler corresponding to the temperature sensor. One side of the storage tank is connected to a second water pump, and the outlet pipe of the second water pump is set to correspond to the worktable of the wire feeding equipment.

2. The water circulation device for separating clear and turbid water in a wire EDM machine according to claim 1, characterized in that: The bottom debris scraping mechanism includes a motor located on a water collection tank, a screw fixedly connected to the output end of the motor, a connecting plate threadedly connected to the screw, a filter screen fixedly installed at the lower end of the connecting plate, the filter screen slidingly connected to the inner bottom surface of the water collection tank, and a slag discharge pipe symmetrically connected to the lower side of the water collection tank.

3. The water circulation device for separating clear and turbid water in a wire EDM machine according to claim 2, characterized in that: A limit rod is fixedly installed on the upper side of the water collection tank, and the limit rod is plugged into the connecting plate.

4. The water circulation device for separating clear and turbid water in a wire EDM machine according to claim 3, characterized in that: The filtration mechanism includes protrusions that are uniformly fixed in the water collection tank, and a filter plate is slidably connected between the protrusions. Pull rings are uniformly fixedly installed on the filter plate.

5. A water circulation device for separating clear and turbid water in a wire EDM machine according to claim 4, characterized in that: A movable plate is inserted and connected at the outlet of the second water collection tank, and a filter screen is fixedly installed on the movable plate corresponding to the outlet.

6. A water circulation device for separating clear and turbid water in a wire EDM machine according to claim 1, characterized in that: The lower part of the water collection tank is connected to the slag discharge pipe.

7. A water circulation device for separating clear and turbid water in a wire EDM machine according to claim 1, characterized in that: A second filter plate is fixedly installed in the water storage tank by bolts. The second filter plate has a hollow center and the upper and lower layers of the second filter plate have different mesh counts.

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