Cooling liquid backflow purification structure for numerical control machine tool

Abstract

The utility model discloses a cooling liquid backflow purification structure for a numerical control machine tool, and relates to the technical field of cooling liquid recovery. The device comprises a collecting bin, and a cooling assembly and a driving assembly are arranged on the back of the collecting bin; the slag discharging assembly comprises a slag discharging bin, and the interior of the slag discharging bin is fixedly connected with a slag blower and a plurality of slag scraping plates; the filtering assembly comprises a filtering bin, the upper portion of an inner cavity of the filtering bin is rotationally connected with an upper bearing roller and a driving roller, the lower portion of the inner cavity of the filtering bin is rotationally connected with two parallel pressing rollers, the interior of the slag discharging bin is rotationally connected with two parallel lower bearing rollers, and the outer portions of the upper bearing roller, the driving roller, the pressing rollers and the lower bearing rollers are in transmission connection with a filtering belt. According to the utility model, high-speed airflow can be blown to the filter belt through the slag blowing device, blockages of meshes of the filter belt can be cleaned, meanwhile, attachments outside the filter belt can be cleaned through the arranged slag scraping plate, and chippings and impurities in cooling liquid can be automatically discharged.

Description

Technical Field

[0001] This utility model belongs to the field of coolant recovery technology, and in particular relates to a coolant reflux purification structure for CNC machine tools. Background Technology

[0002] In order to prevent the cutting head from overheating and annealing during the machining process, CNC machine tools need to use coolant to cool and lubricate the cutting tools and workpieces. This also extends the service life of the machine. In the production process, recycling coolant can save resources, meet environmental protection requirements, improve utilization rate, and reduce production costs.

[0003] The second paragraph: A Chinese patent with publication number CN213492462U discloses a coolant circulation and purification device for CNC machining of automotive parts, including a fixed frame. A CNC device body is fixedly installed on the upper end of the fixed frame, and a liquid storage tank is installed at the bottom of the fixed frame. An outlet is opened at the upper end of the liquid storage tank, and an outlet pipe is installed on the outlet. The end of the outlet pipe away from the outlet passes through the CNC device body and is positioned directly above the machining head. An opening is opened on the fixed frame directly below the machining head, and a guide plate is installed on the opening. The output end of the guide plate is provided with a filtration mechanism for filtering and purifying the coolant to facilitate its reuse. This invention is provided with a collection box, and the height of the return port of the collection box is greater than the height of the bottom of the collection box, which allows the coolant to settle sufficiently. This invention is also provided with a filtration mechanism that uses a filter cylinder to filter the coolant, and at the same time, the rotating threads on the inner wall of the filter cylinder discharge the filtered debris out of the fixed frame.

[0004] However, in the above solution, during the process of removing debris through the rotating threads on the inner wall of the filter cartridge, some small debris may get stuck in the filter holes of the filter cartridge and cannot be automatically discharged. Over time, this will reduce the filtration efficiency of the filter cartridge.

[0005] To address these issues, we provide a coolant reflux purification structure for CNC machine tools. Utility Model Content

[0006] The purpose of this invention is to provide a coolant reflux purification structure for CNC machine tools. It uses a blower to blow high-speed airflow onto the filter belt to clean the blockages in the filter belt mesh, and a scraper to clean the external deposits on the filter belt. This solves the problem of existing coolant circulation purification devices being inconvenient to clean debris and impurities.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model relates to a coolant reflux purification structure for CNC machine tools, comprising: a collection chamber, with a cooling component and a drive component mounted on the back of the collection chamber; a slag discharge component, including a slag discharge chamber movably fitted onto the top of the collection chamber, with a slag blower and multiple scraper blades fixedly connected inside the slag discharge chamber, a fan fixedly connected to the front of the slag discharge chamber, and a slag discharge trough fixedly connected to the bottom of the slag discharge chamber; a filter component, including a filter chamber movably fitted onto the top of the collection chamber, with an upper receiving roller and a drive roller rotatably connected to the upper part of the filter chamber's inner cavity, two parallel pressure rollers rotatably connected to the lower part of the filter chamber's inner cavity, and two parallel lower receiving rollers rotatably connected to the inside of the slag discharge chamber; a filter belt externally connected to the upper receiving roller, drive roller, pressure roller, and lower receiving roller, and the filter belt forming a U-shape; and a collection component, including a collection hopper movably fitted onto the top of the filter chamber, with a liquid guide pipe fixedly connected to the bottom of the collection hopper, and the bottom of the liquid guide pipe being strip-shaped.

[0009] The present invention is further configured such that the cooling assembly includes a fixed frame fixedly connected to the back of the collection chamber, a plurality of cooling fans fixedly connected to the side of the fixed frame away from the collection chamber, a circulation pump fixedly connected to the top of the fixed frame, and a heat exchanger fixedly connected inside the fixed frame.

[0010] The present invention is further configured such that the heat exchanger includes a suction pipe and an upper liquid pipe, the suction pipe is connected to the collection chamber, the upper liquid pipe is fixedly connected to the input end of the circulating pump, and multiple heat exchange tubes are fixedly connected between the suction pipe and the upper liquid pipe.

[0011] The present invention is further configured such that the heat exchange tubes are S-shaped, and multiple heat exchange fins are fixedly connected to the outside of the multiple heat exchange tubes and are equidistantly distributed along the horizontal direction.

[0012] The present invention is further configured such that the slag blower includes multiple air outlet pipes fixedly connected inside the slag discharge bin, and a horizontal pipe is fixedly connected to the top of the multiple air outlet pipes, and the horizontal pipe is connected to the multiple air outlet pipes, and the output end of the blower is connected to the horizontal pipe.

[0013] The present invention is further configured such that an air outlet is provided at the bottom of the horizontal tube to fit with the top of the filter belt, and multiple scraper plates are fitted with the bottom of the filter belt.

[0014] The present invention is further configured such that the bottom of the filter chamber is V-shaped, and the bottom of the filter chamber is fixedly connected to an outlet pipe, and a drain pipe is connected between the outlet pipe and the collection chamber.

[0015] The present invention is further configured such that two passages are provided at the bottom of the filter chamber, and the filter belt is located inside the two passages.

[0016] The present invention is further configured such that the filter belt includes two belts, and a filter screen is fixedly connected between the two belts.

[0017] The present invention is further configured such that the drive assembly includes a drive motor fixedly connected to the top of the fixed frame and a driven sprocket fixedly connected to one end of the drive roller, the output end of the drive motor is fixedly connected to a driving sprocket, and the driving sprocket and the driven sprocket are externally connected by a chain.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model uses a filter screen to filter and trap impurities in the coolant. Then, a drive roller rotates the filter belt, and a fan blows high-speed airflow into the horizontal pipe. The high-speed airflow is then blown onto the filter belt through multiple air outlet pipes, which can clean the blockage in the filter belt mesh. At the same time, a scraper can clean the adhering substances on the outside of the filter belt. Afterward, the debris and impurities fall into the slag discharge bin and are finally discharged from the slag discharge trough. This can automatically remove debris and impurities from the coolant and improve the coolant recovery efficiency.

[0020] 2. This utility model uses a circulating pump to draw coolant from the collection chamber into the suction pipe, and then into multiple heat exchange tubes. After that, multiple cooling fans can be activated to cool the coolant in the heat exchange tubes, thereby improving the cooling performance of the coolant. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the overall front structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the overall rear structure of this utility model.

[0024] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model.

[0025] Figure 4 This is a schematic diagram of the filter chamber of this utility model.

[0026] Figure 5 This is a schematic diagram of the slag discharge bin of this utility model.

[0027] Figure 6 This is a schematic diagram of the slag blower of this utility model.

[0028] Figure 7 This is a schematic diagram of the filter belt of this utility model.

[0029] Figure 8 This is a schematic diagram of the heat exchanger of this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 100. Collection bin; 200. Slag discharge assembly; 201. Slag discharge bin; 201a. Slag discharge trough; 202. Slag blower; 202a. Air outlet pipe; 202b. Horizontal pipe; 203. Slag scraper; 204. Fan; 300. Filter assembly; 301. Filter bin; 301a. Liquid outlet pipe; 301b. Through port; 302. Upper receiving roller; 303. Drive roller; 304. Pressure roller; 305. Lower receiving roller; 306. Filter belt; 306a. Belt; 30 6b. Filter screen; 307. Drain pipe; 400. Collection assembly; 401. Collection hopper; 402. Liquid guide pipe; 500. Cooling assembly; 501. Fixing frame; 502. Heat exchanger; 502a. Suction pipe; 502b. Liquid inlet pipe; 502c. Heat exchange tube; 502d. Heat dissipation fins; 503. Cooling fan; 504. Circulation pump; 600. Drive assembly; 601. Drive motor; 602. Drive sprocket; 603. Driven sprocket; 604. Chain. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0033] Example 1

[0034] Please see Figures 1 to 7 This utility model is a coolant reflux purification structure for CNC machine tools, including a collection chamber 100, and a cooling component 500 and a drive component 600 are provided on the back of the collection chamber 100.

[0035] The slag discharge assembly 200 includes a slag discharge chamber 201 that is movably sleeved on the top of the collection chamber 100. A slag blower 202 and multiple slag scrapers 203 are fixedly connected inside the slag discharge chamber 201. A blower 204 is fixedly connected to the front of the slag discharge chamber 201. A slag discharge trough 201a is fixedly connected to the bottom of the slag discharge chamber 201. The slag blower 202 can blow high-speed airflow toward the filter belt 306 to clean the blockage in the mesh of the filter belt 306. The slag scrapers 203 can clean the attachments on the outside of the filter belt 306.

[0036] The filter assembly 300 includes a filter chamber 301 movably sleeved on the top of the collection chamber 100. The upper part of the inner cavity of the filter chamber 301 is rotatably connected to an upper receiving roller 302 and a drive roller 303 that are parallel to each other. The lower part of the inner cavity of the filter chamber 301 is rotatably connected to two pressure rollers 304 that are parallel to each other. The inside of the slag discharge chamber 201 is rotatably connected to two lower receiving rollers 305 that are parallel to each other. The upper receiving roller 302, drive roller 303, pressure roller 304 and lower receiving roller 305 are externally connected to a filter belt 306, and the filter belt 306 forms a U-shape. The bottom of the filter chamber 301 has two through ports 301b, and the filter belt 306 is located inside the two through ports 301b. The filter belt 306 can filter the coolant and improve the purity of the coolant.

[0037] The collection assembly 400 includes a collection hopper 401 that is movably fitted onto the top of the filter chamber 301. A liquid guide pipe 402 is fixedly connected to the bottom of the collection hopper 401, and the bottom of the liquid guide pipe 402 is strip-shaped. The liquid guide pipe 402 allows the coolant to be evenly distributed on the surface of the filter belt 306.

[0038] Specifically, the slag blower 202 includes multiple air outlet pipes 202a fixedly connected inside the slag discharge bin 201. A horizontal pipe 202b is fixedly connected to the top of the multiple air outlet pipes 202a, and the horizontal pipe 202b is connected to the multiple air outlet pipes 202a. The output end of the blower 204 is connected to the horizontal pipe 202b.

[0039] The drive assembly 600 includes a drive motor 601 fixedly connected to the top of the fixed frame 501 and a driven sprocket 603 fixedly connected to one end of the drive roller 303. The output end of the drive motor 601 is fixedly connected to a drive sprocket 602, and the drive sprocket 602 and the driven sprocket 603 are externally connected by a chain 604.

[0040] Furthermore, the bottom of the horizontal tube 202b is provided with an air outlet that fits with the top of the filter belt 306, and multiple scraper plates 203 are all fitted with the bottom of the filter belt 306.

[0041] The bottom of the filter chamber 301 is V-shaped, and the bottom of the filter chamber 301 is fixedly connected to the liquid outlet pipe 301a. The liquid outlet pipe 301a is connected to the collection chamber 100 by a drain pipe 307. The coolant in the filter chamber 301 can be introduced into the collection chamber 100 through the drain pipe 307.

[0042] The filter belt 306 includes two belts 306a, and a filter screen 306b is fixedly connected between the two belts 306a.

[0043] The operation process of this embodiment is as follows: When it is necessary to filter the coolant, the coolant is first collected through the collection hopper 401, and then injected into the top of the filter screen 306b in a strip shape through the liquid guide pipe 402. After being filtered by the filter screen 306b, the coolant falls into the filter chamber 301. Then, the drive motor 601 is started to drive the drive sprocket 602 to rotate, and then the chain 604 and the driven sprocket 603 drive the drive roller 303 to rotate. Then, the drive roller 303 drives the filter belt 306. The system rotates, and then the fan 204 blows high-speed airflow into the horizontal pipe 202b. The high-speed airflow is then blown towards the filter belt 306 through multiple air outlet pipes 202a, which can clean the blockage in the mesh of the filter belt 306. At the same time, the scraper 203 can clean the adhering substances on the outside of the filter belt 306. After that, the debris and impurities fall into the slag discharge bin 201 and are finally discharged from the slag discharge trough 201a. This can realize the automatic discharge of debris and impurities in the coolant and improve the coolant recovery efficiency.

[0044] Example 2

[0045] Please see Figure 2 and Figure 8 Based on the first specific embodiment, the cooling assembly 500 includes a fixed frame 501 fixedly connected to the back of the collection chamber 100. Multiple cooling fans 503 are fixedly connected to the side of the fixed frame 501 facing away from the collection chamber 100. A circulation pump 504 is fixedly connected to the top of the fixed frame 501. A heat exchanger 502 is fixedly connected inside the fixed frame 501. The multiple cooling fans 503 can cool the coolant in the heat exchanger 502 and improve the cooling performance of the coolant.

[0046] Specifically, the heat exchanger 502 includes a suction pipe 502a and an upper liquid pipe 502b. The suction pipe 502a is connected to the collection chamber 100, and the upper liquid pipe 502b is fixedly connected to the input end of the circulating pump 504. Multiple heat exchange tubes 502c are fixedly connected between the suction pipe 502a and the upper liquid pipe 502b.

[0047] Furthermore, the heat exchange tube 502c is S-shaped, and multiple heat exchange tubes 502c are fixedly connected to the outside of multiple heat exchange tubes 502c with multiple heat dissipation fins 502d distributed at equal intervals along the horizontal direction. By extending the length of the heat exchange tube 502c through the S-shaped heat exchange tube 502c, the heat exchange area is increased, and the cooling efficiency of the coolant can be further improved by the heat dissipation fins 502d.

[0048] The operation process of this embodiment is as follows: When it is necessary to cool the coolant, the coolant in the collection chamber 100 is first drawn into the suction pipe 502a by the circulation pump 504, and then enters multiple heat exchange pipes 502c. After that, the coolant in the heat exchange pipes 502c can be cooled by starting multiple cooling fans 503, which can improve the cooling performance of the coolant. Then the coolant is collected in the upper liquid pipe 502b and enters the inlet of the circulation pump 504. Finally, it is discharged from the outlet of the circulation pump 504.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A coolant reflux purification structure for CNC machine tools, characterized in that, include, A collection chamber (100) is provided with a cooling assembly (500) and a drive assembly (600) at its rear. The slag discharge assembly (200) includes a slag discharge bin (201) that is movably sleeved on the top of the collection bin (100). A slag blower (202) and a plurality of slag scrapers (203) are fixedly connected inside the slag discharge bin (201). A blower (204) is fixedly connected to the front of the slag discharge bin (201). A slag discharge trough (201a) is fixedly connected to the bottom of the slag discharge bin (201). The filter assembly (300) includes a filter chamber (301) movably sleeved on the top of the collection chamber (100). The upper part of the inner cavity of the filter chamber (301) is rotatably connected to an upper receiving roller (302) and a drive roller (303) that are parallel to each other. The lower part of the inner cavity of the filter chamber (301) is rotatably connected to two pressure rollers (304) that are parallel to each other. The inside of the slag discharge chamber (201) is rotatably connected to two lower receiving rollers (305) that are parallel to each other. The upper receiving roller (302), drive roller (303), pressure roller (304) and lower receiving roller (305) are externally connected to a filter belt (306), and the filter belt (306) forms a U-shape. The collection assembly (400) includes a collection hopper (401) movably fitted onto the top of the filter chamber (301), the bottom of which is fixedly connected to a liquid guide tube (402), and the bottom of the liquid guide tube (402) is strip-shaped.

2. The coolant reflux purification structure for CNC machine tools according to claim 1, characterized in that, The cooling assembly (500) includes a mounting bracket (501) fixedly connected to the back of the collection chamber (100). A plurality of cooling fans (503) are fixedly connected to the side of the mounting bracket (501) away from the collection chamber (100). A circulation pump (504) is fixedly connected to the top of the mounting bracket (501). A heat exchanger (502) is fixedly connected inside the mounting bracket (501).

3. The coolant reflux purification structure for CNC machine tools according to claim 2, characterized in that, The heat exchanger (502) includes a suction pipe (502a) and an upper liquid pipe (502b), and the suction pipe (502a) is connected to the collection chamber (100). The upper liquid pipe (502b) is fixedly connected to the input end of the circulating pump (504). A plurality of heat exchange tubes (502c) are fixedly connected between the suction pipe (502a) and the upper liquid pipe (502b).

4. The coolant reflux purification structure for CNC machine tools according to claim 3, characterized in that, The heat exchange tube (502c) is S-shaped, and multiple heat dissipation fins (502d) are fixedly connected to the outside of the multiple heat exchange tubes (502c) and are distributed at equal intervals along the horizontal direction.

5. The coolant reflux purification structure for CNC machine tools according to claim 1, characterized in that, The slag blower (202) includes multiple air outlet pipes (202a) fixedly connected inside the slag discharge bin (201). A horizontal pipe (202b) is fixedly connected to the top of the multiple air outlet pipes (202a), and the horizontal pipe (202b) is connected to the multiple air outlet pipes (202a). The output end of the blower (204) is connected to the horizontal pipe (202b).

6. The coolant reflux purification structure for CNC machine tools according to claim 5, characterized in that, The bottom of the horizontal tube (202b) is provided with an air outlet that fits against the top of the filter belt (306), and multiple scraper plates (203) are fitted against the bottom of the filter belt (306).

7. The coolant reflux purification structure for CNC machine tools according to claim 1, characterized in that, The bottom of the filter chamber (301) is V-shaped, and the bottom of the filter chamber (301) is fixedly connected to the liquid outlet pipe (301a). The liquid outlet pipe (301a) is connected to the collection chamber (100) by a drain pipe (307).

8. The coolant reflux purification structure for CNC machine tools according to claim 1, characterized in that, The bottom of the filter chamber (301) has two access ports (301b), and the filter belt (306) is located inside the two access ports (301b).

9. The coolant reflux purification structure for CNC machine tools according to claim 1, characterized in that, The filter belt (306) includes two belts (306a), and a filter screen (306b) is fixedly connected between the two belts (306a).

10. A coolant reflux purification structure for CNC machine tools according to claim 2, characterized in that, The drive assembly (600) includes a drive motor (601) fixedly connected to the top of the fixed frame (501) and a driven sprocket (603) fixedly connected to one end of the drive roller (303). The output end of the drive motor (601) is fixedly connected to a drive sprocket (602), and the drive sprocket (602) and the driven sprocket (603) are externally connected by a chain (604).

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