Intelligent vacuum chip extraction system

Abstract

The invention relates to the technical field of cutting material recovery, and particularly discloses an intelligent vacuum chip extraction system which comprises a liquid suction tank, a liquid purification tank, a backwashing lifting filter, a filtrate storage tank, a proportioning tank, a stock solution barrel, a vacuum pump set and a liquid return pump set. The input end of the backwashing lifting filter is arranged in the clean liquid box, the clean liquid box is communicated with a circulating pump set, a first concentration refractometer is mounted on the circulating pump set, the circulating pump set is communicated with the filtrate storage box, and the liquid suction tank and the filtrate storage box are both communicated with the vacuum pump set; the proportioning box is respectively communicated with the filtrate storage box and the stock solution barrel, a ball valve and a self-suction valve are respectively arranged on a communicated pipeline, a water inlet is formed in the filtrate storage box, and a pneumatic valve and a liquid level meter are arranged at the water inlet. The concentration of mixed liquid can be monitored in real time, accurate adjustment is carried out according to actual needs, the stability of cutting operation is ensured, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting material recovery, and in particular relates to an intelligent vacuum chip extraction system. Background Art

[0002] In the metal processing industry, the recycling of machining chips has become an important part of comprehensive resource utilization. However, although a large amount of waste metal has been effectively recycled, the chips also contain a lot of chip fluid, which needs to be recycled at the same time as the chips. At the same time, conventional machine tools all use carts to load chips, and manual labor is required to transport the carts to designated chip processing equipment or accumulation areas. When there are many machine tools in the workshop, a lot of labor will be consumed, and environmental pollution will also occur. When the chips are piled up, the volume is large and it takes up a lot of space.

[0003] In response to the above problems, the inventor applied for a utility model patent (application number: CN202321423108.2) on June 5, 2023, and proposed the first generation of vacuum chip extraction system. Although the system has the advantages of recycling waste liquid and waste residue, new technical difficulties have emerged in the subsequent use process: the staff cannot intuitively understand the progress of chip extraction inside the system. Because of recycling, the concentration of the cutting fluid will gradually decrease, and the stock liquid needs to be replenished to ensure the normal operation. However, the first generation of vacuum chip extraction system cannot accurately control the subsequent addition and ratio of the stock liquid, and can only rely on cumbersome sampling, or add through experience. This method is not only inefficient, but also too large or too small concentration may lead to instability of cutting operations, affecting the overall production efficiency and product quality.

[0004] In order to overcome these limitations of the first-generation vacuum chip extraction system, the inventors improved it and successfully iterated the second-generation vacuum chip extraction system, which effectively solved the above-mentioned technical problems. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned prior art, the present invention proposes an intelligent vacuum chip extraction system.

[0006] The technical solution adopted by the present invention is as follows:

[0007] An intelligent vacuum chip extraction system comprises a liquid suction tank, a clean liquid tank, a backwashing and lifting filter, a filtered liquid storage tank, a proportioning tank, a raw liquid barrel, a vacuum pump group and a liquid return pump group, wherein the liquid suction tank is arranged above the clean liquid tank, and the liquid suction tank is connected to the clean liquid tank and is provided with a valve, the input end of the backwashing and lifting filter is arranged in the clean liquid tank, the clean liquid tank is connected to a circulation pump group, a first concentration refractometer is installed on the circulation pump group, the circulation pump group is connected to the filtered liquid storage tank, the filtered liquid storage tank is arranged on the side of the clean liquid tank, The liquid suction tank and the filtered liquid storage box are both connected to the vacuum pump group, the proportioning box is installed above the filtered liquid storage box, the proportioning box is connected to the filtered liquid storage box and a ball valve is provided on the connected pipeline, the proportioning box is connected to the raw liquid barrel and a self-priming valve is provided on the connected pipeline, the filtered liquid storage box is provided with a water inlet, a pneumatic valve and a liquid level meter are provided at the water inlet, the liquid suction tank is provided with a liquid inlet pipe, the liquid suction tank is connected to the machine tool waste outlet through the liquid inlet pipe, and the filtered liquid storage box is connected to the machine tool cutting fluid supply port through the return liquid pump group.

[0008] In a further technical solution, the circulation pump group includes a first circulation pump and a second circulation pump, the first circulation pump and the second circulation pump are both connected and arranged at the bottom of the side of the clean liquid tank, the first circulation pump is connected to a first circulation pipe, the first circulation pump is connected to the top of the liquid suction tank through the first circulation pipe, the first concentration refractometer is installed on the first circulation pipe, the second circulation pump is connected to a second circulation pipe, and the second circulation pump is connected to the filtrate storage tank through the second circulation pipe.

[0009] In a further technical solution, the upper end of the first circulation pipe is connected to an annular pipe, and a plurality of flushing pipes are arranged on the annular pipe at intervals, and the plurality of flushing pipes are arranged obliquely and connected to the inner wall of the liquid suction tank.

[0010] In a further technical solution, a paper bag filter for filtering fine debris is provided above the filtrate storage box, the bottom of the paper bag filter is connected to the filtrate storage box, and the end of the second circulation pipe extends into the paper bag filter.

[0011] In a further technical solution, a circulating cooling pump is connected to the bottom of the side of the filtrate storage box, the circulating cooling pump is connected to a circulating cooling pipe, a heat exchanger is provided on the circulating cooling pipe, and the circulating cooling pump is connected to the proportioning box through the circulating cooling pipe.

[0012] In a further technical solution, a briquetting machine is also included, and a discharge elevator is provided below the backwashing and lifting filter, and the output end of the discharge elevator extends into the input port of the briquetting machine.

[0013] In a further technical solution, a second concentration refractometer is provided in the filtrate storage box.

[0014] In a further technical solution, a flow meter is also provided on the pipeline connecting the proportioning box and the stock liquid barrel.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. The present invention not only realizes the separation and reuse of metal chips and cutting fluid in the mixed liquid, greatly improving the utilization rate of resources; but also effectively reduces the emission of metal particles, and reduces the pollution to the environment through the recovery of cutting fluid.

[0017] 2. The present invention can monitor the concentration of the mixed liquid in real time and make precise adjustments according to actual needs, ensuring the stability of the cutting operation, thereby improving production efficiency. At the same time, intelligent management also reduces the difficulty of manual control of variables, making the operation of the entire system more stable, efficient and environmentally friendly.

[0018] 3. The present invention improves the filtering accuracy of the system by adding a paper bag filter, which can effectively capture and remove small particles and fine chips remaining in the mixed liquid, ensuring the purity and stability of the cutting fluid, which is of great significance for improving processing quality and extending the service life of the cutting fluid.

[0019] 4. The present invention performs cooling circulation treatment on the solution through a cooling circulation pump and a heat exchanger, which can not only realize the stirring of the solution and ensure that the various stock solutions added in the proportioning process can be fully and evenly mixed, thereby improving the overall quality and performance of the solution, but also can effectively absorb and take away the excess heat in the mixed solution, realize the cooling and temperature reduction treatment of the mixed solution, making it more suitable for subsequent processing or use, thereby further improving the efficiency and performance of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A;

[0023] Figure 3 It is a structural schematic diagram of another aspect of the present invention.

[0024] Figure markings: 1-liquid suction tank, 2-clean liquid tank, 3-backwashing lifting filter, 4-filtrate storage tank, 5-proportioning box, 6-original liquid barrel, 7-vacuum pump group, 8-liquid return pump group, 9-circulation pump group, 901-first circulation pump, 902-second circulation pump, 903-first circulation pipe, 904-second circulation pipe, 10-first concentration refractometer, 11-self-priming valve, 12-liquid inlet pipe, 13-annular pipe, 14-flushing pipe, 15-paper bag filter, 16-circulating cooling pump, 17-circulating cooling pipeline, 18-briquetting machine, 19-discharging elevator. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 3 The present invention provides an intelligent vacuum chip extraction system, comprising a liquid suction tank 1, a clean liquid tank 2, a backwashing and lifting filter 3, a filtered liquid storage tank 4, a proportioning tank 5, a raw liquid barrel 6, a vacuum pump group 7 and a liquid return pump group 8, wherein the liquid suction tank 1 is arranged above the clean liquid tank 2, and the liquid suction tank 1 is connected to the clean liquid tank 2 and is provided with a valve, the input end of the backwashing and lifting filter 3 is arranged in the clean liquid tank 2, the clean liquid tank 2 is connected with a circulation pump group 9, the circulation pump group 9 is installed with a first concentration refractometer 10, the circulation pump group 9 is connected with the filtered liquid storage tank 4, and the filtered liquid storage tank 4 is arranged at the clean liquid tank 2. On the side, the suction tank 1 and the filtered liquid storage box 4 are both connected to the vacuum pump group 7, the proportioning box 5 is installed above the filtered liquid storage box 4, the proportioning box 5 is connected to the filtered liquid storage box 4 and a ball valve is provided on the connected pipeline, the proportioning box 5 is connected to the raw liquid barrel 6 and a self-priming valve 11 is provided on the connected pipeline, the filtered liquid storage box 4 is provided with a water inlet, a pneumatic valve and a liquid level meter are provided at the water inlet, the suction tank 1 is provided with a liquid inlet pipe 12, the suction tank 1 is connected to the machine tool waste outlet through the liquid inlet pipe 12, and the filtered liquid storage box 4 is connected to the machine tool cutting fluid supply port through the return liquid pump group 8.

[0027] With the intelligent vacuum chip extraction system designed as above, preparation work is first carried out before operation: the suction tank 1 is connected to the waste outlet of the machine tool through the liquid inlet pipe 12, and at the same time, the filtered liquid storage box 4 is connected to the cutting fluid supply port of the machine tool through the return liquid pump group 8 to establish a recycling system for the cutting fluid.

[0028] Specifically, during operation, the intelligent vacuum chip extraction system operates according to the following steps: the air in the suction tank 1 and the filtered liquid storage box 4 is extracted through the vacuum pump group 7, thereby creating a vacuum environment inside the system. Next, the cutting fluid containing metal chips generated by the machine tool during the processing, that is, the mixed liquid, is introduced into the suction tank 1 from the machine tool waste outlet through the liquid inlet pipe 12 to complete the collection of waste. Subsequently, the valve below the suction tank 1 is opened to allow the mixed liquid in the suction tank 1 to flow into the clean liquid tank 2. In the clean liquid tank 2, the backwashing lifting filter 3 starts to work, preliminarily filters the mixed liquid and transports it out to remove the larger metal chips in the mixed liquid. Afterwards, the circulating pump group 9 is started to extract the mixed liquid in the clean liquid tank 2 and introduce it into the filtered liquid storage box 4 for storage. In this process, the concentration of the mixed liquid is monitored in real time by the first concentration refractometer 10 to ensure that the quality of the cutting fluid meets the requirements. When the concentration of the cutting fluid is lower than the set value, the proportioning box 5 extracts an appropriate amount of cutting fluid from the raw liquid barrel 6 through the self-priming valve 11 according to the preset proportioning ratio, and mixes it with the mixed liquid in the filtered liquid storage box 4 through the ball valve adjustment to achieve the concentration required for the operation. At the same time, the liquid level meter at the water inlet of the filtered liquid storage box 4 monitors the water intake in real time, estimates the amount of water added, and ensures the smooth progress of the proportioning process. After the mixed liquid stored in the filtered liquid storage box 4 is accurately proportioned and adjusted, it is transported back to the cutting fluid supply port of the machine tool through the return liquid pump group 8 to achieve the recycling of the cutting fluid. Through the intelligent vacuum chip extraction system, not only the separation and reuse of metal chips and cutting fluid in the mixed liquid is realized, which greatly improves the utilization rate of resources; but also the exhaust gas emission containing metal particles is effectively reduced, reducing the pollution to the environment. In addition, the system can monitor the concentration of the mixed liquid in real time and make precise adjustments according to actual needs, ensuring the stability of the cutting operation, thereby improving production efficiency. At the same time, intelligent management also reduces the difficulty of manual control of variables, making the operation of the entire system more stable, efficient and environmentally friendly.

[0029] In a specific embodiment, see Figure 1 The circulation pump group 9 includes a first circulation pump 901 and a second circulation pump 902. The first circulation pump 901 and the second circulation pump 902 are both connected and arranged at the bottom of the side of the clean liquid tank 2. The first circulation pump 901 is connected to a first circulation pipe 903. The first circulation pump 901 is connected to the top of the suction tank 1 through the first circulation pipe 903. The first concentration refractometer 10 is installed on the first circulation pipe 903. The second circulation pump 902 is connected to a second circulation pipe 904. The second circulation pump 902 is connected to the filtrate storage tank 4 through the second circulation pipe 904.

[0030] The first circulation pump 901 is connected to the top of the liquid suction tank 1 through the first circulation pipe 903, forming a circulation loop. In this circulation loop, the first concentration refractometer 10 installed on the first circulation pipe 903 is used to monitor the concentration of the mixed solution flowing through the pipeline in real time. This design enables the system to instantly sense the concentration change of the mixed solution, provide accurate data support for subsequent concentration adjustment, help maintain the stability of the cutting fluid, improve processing efficiency, and reduce resource waste. In addition, the inner wall of the liquid suction tank 1 can also be rinsed to reduce the probability of metal chips adhering to the inner wall of the liquid suction tank 1, thereby reducing the accumulation of metal chips in the liquid suction tank 1 and extending the service life of the liquid suction tank 1. On the other hand, the second circulation pump 902 is connected to the filtered liquid storage box 4 through the second circulation pipe 904, forming another circulation loop. In this loop, the mixed solution after preliminary filtration in the clean liquid tank 2 is transported to the filtered liquid storage box 4 for storage and recycling under the action of the second circulation pump 902, ensuring the stable supply of machine tool cutting fluid.

[0031] In a specific embodiment, see Figure 1 and Figure 2 The upper end of the first circulation pipe 903 is connected to an annular pipe 13, and a plurality of flushing pipes 14 are arranged at intervals on the annular pipe 13. The plurality of flushing pipes 14 are inclined and connected to the inner wall of the liquid suction tank 1.

[0032] The multiple flushing pipes 14 connected by the annular pipe 13 are all arranged in an inclined manner and connected to the inner wall of the liquid suction tank 1. This design can ensure that the mixed liquid impacts the inner wall of the liquid suction tank 1 at a certain angle when circulating, which not only increases the flushing range, but also can more effectively remove the metal chips attached to the inner wall with the help of this directional impact force. This inclined flushing method can greatly reduce the ineffective loss of circulating liquid, while improving the flushing efficiency, ensuring that the inner wall of the liquid suction tank 1 is cleaned more thoroughly.

[0033] In a specific embodiment, see Figure 1 A paper bag filter 15 for filtering fine dust is provided above the filtrate storage box 4 , and the bottom of the paper bag filter 15 is connected to the filtrate storage box 4 , and the end of the second circulation pipe 904 extends into the paper bag filter 15 .

[0034] Due to the diversity of the particle size of metal chips, this system has added a paper bag filter 15 to improve the filtering accuracy of the system for small particles that cannot be filtered by the backwashing lifting filter 3. By extending the end of the second circulation pipe 904 into the paper bag filter 15, the small particles remaining in the mixed liquid can be effectively captured and removed, ensuring the purity and stability of the cutting fluid, which is of great significance for improving the processing quality and extending the service life of the cutting fluid. In addition, the paper bag filter 15 is easy to replace and clean. When the paper bag filter 15 reaches the saturation state of its filtering capacity, the user only needs to easily replace the paper bag to quickly restore its filtering capacity without cumbersome cleaning steps or complicated maintenance work. This feature greatly reduces the maintenance cost of the system, while also shortening the time required for maintenance, ensuring the continuous and efficient operation of the entire system.

[0035] In a specific embodiment, see Figure 1 A circulating cooling pump 16 is connected to the bottom of the side of the filtrate storage box 4, and the circulating cooling pump 16 is connected to a circulating cooling pipe 17. A heat exchanger is provided on the circulating cooling pipe 17. The circulating cooling pump 16 is connected to the proportioning box 5 through the circulating cooling pipe 17.

[0036] The mixed liquid is discharged from the waste outlet of the machine tool. Since these mixed liquids play a heat exchange role during metal cutting operations, the temperature of the mixed liquid is relatively high. Even after the purification and filtration process and being stored in the filtrate storage tank, the mixed liquid still retains a certain temperature. Therefore, a cooling circulation pump and a heat exchanger are introduced to cool and circulate the solution. Through the operation of the cooling circulation pump, not only can the solution be stirred, but also the various stock solutions added during the proportioning process can be fully and evenly mixed, thereby improving the overall quality and performance of the solution. Moreover, this circulation process also effectively absorbs and takes away the excess heat in the mixed liquid through the heat exchanger installed on the circulating cooling pipe 17, realizing the cooling and cooling treatment of the mixed liquid, making it more suitable for subsequent processing or use, thereby further improving the efficiency and performance of the entire system.

[0037] In a specific embodiment, see Figure 1 and Figure 2 , also includes a briquetting machine 18, and a discharge elevator 19 is provided below the backwashing and lifting filter 3, and the output end of the discharge elevator 19 extends into the input port of the briquetting machine 18.

[0038] The metal chips processed by the backwashing lifting filter 3 are efficiently transported to the briquetting machine 18 through the discharge elevator 19. The briquetting machine 18 then compresses the metal chips into compact blocks for subsequent storage, transportation and reuse. This process greatly improves the recovery rate of metal chips and the efficiency of resource utilization.

[0039] In a specific embodiment, a second concentration refractometer is provided in the filtrate storage box 4 .

[0040] By monitoring the concentration of the mixed liquid in the filtrate storage box 4 through the second concentration refractometer, the system can automatically adjust the ratio according to the current concentration of the mixed liquid, thereby ensuring that the mixed liquid is always maintained within the optimal concentration range required for the cutting operation to meet the needs of efficient and stable cutting.

[0041] In a specific implementation, a flow meter is also provided on the pipeline connecting the proportioning box 5 and the raw liquid barrel 6 .

[0042] The flow meter is used to accurately measure and estimate in real time the usage of the raw liquid in the extracted raw liquid barrel 6. When it is detected that the raw liquid level in the raw liquid barrel 6 is low or is about to be used up, a reminder signal will be automatically issued to replenish or replace the raw liquid barrel 6 in time, thereby ensuring the continuity and stability of the cutting fluid ratio and avoiding production interruptions or inaccurate ratios caused by insufficient raw liquid.

[0043] It is worth mentioning that the above-mentioned backwashing and lifting filter 3, vacuum pump group 7, liquid return pump group 8, first concentration refractometer 10, paper bag filter 15, briquetting machine 18 and discharge elevator 19 and other components all adopt conventional technical means in the prior art, which can be fully realized by those skilled in the art, so they will not be repeated here.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An intelligent vacuum chip extraction system, characterized in that: The invention comprises a liquid suction tank (1), a clean liquid tank (2), a backwashing and lifting filter (3), a filtered liquid storage tank (4), a proportioning tank (5), a raw liquid barrel (6), a vacuum pump group (7) and a liquid return pump group (8), wherein the liquid suction tank (1) is arranged above the clean liquid tank (2), the liquid suction tank (1) is connected to the clean liquid tank (2) and is provided with a valve, the input end of the backwashing and lifting filter (3) is arranged in the clean liquid tank (2), the clean liquid tank (2) is connected to a circulation pump group (9), a first concentration refractometer (10) is installed on the circulation pump group (9), the circulation pump group (9) is connected to the filtered liquid storage tank (4), the filtered liquid storage tank (4) is arranged on the side of the clean liquid tank (2), and the liquid return pump group (8) is provided with a vacuum pump group (7) and a liquid return pump group (8). The liquid suction tank (1) and the filtered liquid storage box (4) are both connected to the vacuum pump group (7). The proportioning box (5) is installed above the filtered liquid storage box (4). The proportioning box (5) is connected to the filtered liquid storage box (4) and a ball valve is provided on the connected pipeline. The proportioning box (5) is connected to the raw liquid barrel (6) and a self-priming valve (11) is provided on the connected pipeline. The filtered liquid storage box (4) is provided with a water inlet, and a pneumatic valve and a liquid level meter are provided at the water inlet. The liquid suction tank (1) is provided with a liquid inlet pipe (12). The liquid suction tank (1) is connected to the waste outlet of the machine tool through the liquid inlet pipe (12). The filtered liquid storage box (4) is connected to the cutting fluid supply port of the machine tool through the return liquid pump group (8).

2. The intelligent vacuum chip extraction system according to claim 1, characterized in that: The circulation pump group (9) comprises a first circulation pump (901) and a second circulation pump (902); the first circulation pump (901) and the second circulation pump (902) are both connected and arranged at the bottom of the side of the clean liquid tank (2); the first circulation pump (901) is connected to a first circulation pipe (903); the first circulation pump (901) is connected to the top of the liquid suction tank (1) through the first circulation pipe (903); the first concentration refractometer (10) is installed on the first circulation pipe (903); the second circulation pump (902) is connected to a second circulation pipe (904); the second circulation pump (902) is connected to the filtrate storage tank (4) through the second circulation pipe (904).

3. The intelligent vacuum chip extraction system according to claim 2, characterized in that: The upper end of the first circulation pipe (903) is connected to an annular pipe (13), and a plurality of flushing pipes (14) are arranged on the annular pipe (13) at intervals. The plurality of flushing pipes (14) are arranged obliquely and connected to the inner wall of the liquid suction tank (1).

4. An intelligent vacuum chip extraction system according to claim 2 or 3, characterized in that: A paper bag filter (15) for filtering fine dust is provided above the filtrate storage box (4), the bottom of the paper bag filter (15) is connected to the filtrate storage box (4), and the end of the second circulation pipe (904) extends into the paper bag filter (15).

5. The intelligent vacuum chip extraction system according to claim 1, characterized in that: A circulating cooling pump (16) is connected to the bottom of the side of the filtrate storage box (4), and the circulating cooling pump (16) is connected to a circulating cooling pipe (17). A heat exchanger is provided on the circulating cooling pipe (17), and the circulating cooling pump (16) is connected to the proportioning box (5) through the circulating cooling pipe (17).

6. The intelligent vacuum chip extraction system according to claim 1, characterized in that: It also comprises a briquetting machine (18), and a discharge elevator (19) is arranged below the backwashing and lifting filter (3), and the output end of the discharge elevator (19) extends into the input port of the briquetting machine (18).

7. The intelligent vacuum chip extraction system according to claim 1, characterized in that: A second concentration refractometer is arranged in the filtrate storage box (4).

8. The intelligent vacuum chip extraction system according to claim 1, characterized in that: A flow meter is also provided on the pipeline connecting the proportioning box (5) and the stock liquid barrel (6).

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