Water jet cutting antifouling noise reduction liquid level adjusting system and adjusting method

Abstract

The invention discloses a water jet cutting antifouling noise reduction liquid level adjusting system and method, the system comprises a main water tank and an auxiliary water tank, and a communication device is arranged between the main water tank and the auxiliary water tank; one end of the communicating water pipe is connected to one side of the main water tank, the other end of the communicating water pipe is connected to one side of the auxiliary water tank, a manhole and a drain valve are arranged on the side face of the auxiliary water tank, a control unit is arranged at the top of the auxiliary water tank and comprises an air inlet, an automatic exhaust valve and a manual exhaust valve, and a liquid level instrument is arranged on the side face of the auxiliary water tank. According to the adjusting method, the main water tank is a water jet cutting box body, the auxiliary water tank and the water jet cutting box body form a communicating vessel, when cutting work needs to be carried out, the auxiliary water tank works, water in the auxiliary water tank is pressed into the water jet cutting box body in a pressurization mode, the water surface in the water jet cutting box body rises to immerse the surface of a workpiece to be cut, the liquid level is adjusted flexibly and conveniently, and the working efficiency is improved. And when the cutting surface of the cut object is immersed under the water surface, the cutting noise is low, and the dustproof effect is good.

Description

Technical Field

[0001] This invention relates to the field of waterjet cutting machine technology, specifically a waterjet cutting anti-fouling and noise reduction liquid level adjustment system and method. Background Technology

[0002] Waterjet cutting, also known as waterjet cutting, is a high-pressure water jet cutting technology that uses high-pressure water jets for cutting. Under computer control, it can carve workpieces in any way and is less affected by the material's texture. Because of its low cost, ease of operation, and high yield rate, waterjet cutting is gradually becoming the main method of industrial cutting, especially for precision cutting of glass, ceramic plates, and metal strips.

[0003] Waterjet cutting has several problems. First, during the cutting process, the high-pressure water and cutting abrasive mixture is sprayed at a speed of 600-800 meters per second. The jet impacts the air and the object being cut, generating noise, which can generally reach 80-85 dB. Second, the jet impacts the object being cut, causing splashes. These splashes contain water, cutting abrasive, and small particles of the object being cut, resulting in dirt and grime in the production environment.

[0004] For example, CN117283655A discloses a waterjet cutting machine for glass processing, which includes a cutting module, a locking module, a strengthening module, a traction module, a powder blowing module, and a liquid injection protection module. The cutting module, which is used to restrict the movement of the glass sheet, is equipped with the traction module, which is used to provide power. The traction module is screwed onto the inner wall of the cutting module. A pair of locking modules for locking the glass sheet are threaded onto the traction module. The locking modules are movably mounted on the inner wall of the cutting module. The powder blowing module includes an air outlet, a movable plate, an elastic bag, and a spiral beryllium copper wire. Multiple air outlets are evenly spaced within the concave component. The movable plate is movably mounted on the inner wall of the concave component and is fixed to one end of the spiral beryllium copper wire. The other end of the spiral beryllium copper wire is also fixed to the inner wall of the concave component. The movable plate fits against the side wall of the elastic bag, which is fixed to the inner wall of the concave component. The inside of the elastic bag is connected to the air outlets pre-drilled in the concave component. This module solves the problem that during glass cutting, some glass powder shards splash onto the frame, accumulating over time and requiring manual cleaning, increasing the user's workload.

[0005] For example, CN218398520U discloses a water saw with a dust-proof structure, comprising: a base, in which a collection box for collecting waste cutting fluid is detachably installed, and a guide channel communicating with the collection box is opened on the top of the base, and a liquid permeation rack for placing the plate to be cut is covered on the top of the guide channel; a water jet nozzle is movably mounted above the base, and the movement space of the water jet nozzle is sufficient to cover the liquid permeation rack with a spray range; and a protective cover for preventing cutting fluid splashing, the top edge of the protective cover is connected to a fixing ring by a spring, the fixing ring is sleeved on the outer periphery of the water jet nozzle, and the bottom edge of the protective cover extends to the liquid permeation rack. This invention prevents dust from being generated.

[0006] For example, CN220922905U discloses a glass waterjet cutting machine, including a cutting machine body and a worktable. The worktable is fixedly connected to the lower part of the cutting machine body, and an anti-slip pad is fixedly connected to the surface of the worktable. Glass is placed on the upper part of the anti-slip pad. A fixing block is fixedly connected to the upper part of the cutting machine body, and a waterjet is fixedly connected to the lower end of the fixing block. Mounting blocks are fixedly connected to both sides of the fixing block by bolts. The mounting blocks are rotatably connected to a sleeve through a rotating shaft. A through hole is opened in the upper part of the sleeve, and a movable rod is slidably connected inside the sleeve. A limiting bracket is fixedly connected to the lower end of the movable rod, and the lower part of the limiting bracket is engaged with the limiting block. A splash guard is fixedly connected to the bottom of the limiting block. In this utility model, the splash guard can block the debris and water droplets splashed around when the waterjet cutting machine cuts glass, so as not to affect the operator's work.

[0007] For example, CN208391175U discloses a waterjet cutting machine for target material processing. Its structure includes a target material processing waterjet machine, a waterjet device, a waterjet head, a high-pressure water collection tank, a control panel, and a worktable. The inner top of the target material processing waterjet machine has a crossbar with sliders at both ends. The waterjet device is slidably connected to the middle of the crossbar, and the bottom of the waterjet device is connected to the waterjet head. A camera is located on the bottom left side of the waterjet device. Noise-reducing plates are welded to both sides of the inner sides of the target material processing waterjet machine. A worktable is located at the bottom of the inner side of the target material processing waterjet machine, and a wastewater tank is located at the bottom of the worktable. One problem it solves is that the noise generated during processing can be effectively reduced through the noise-reducing plates and multiple sound-absorbing recesses.

[0008] The aforementioned existing technologies, in addressing both contamination prevention and noise reduction, all involve adding auxiliary components to the worktable or cutting head. However, adding these components increases equipment costs and hinders the flexible adjustment of the cutting head. Summary of the Invention

[0009] The technical problem to be solved by the present invention is to provide a waterjet cutting anti-fouling and noise reduction liquid level adjustment system and method. The system uses the liquid level of the worktable to immerse the working cutting position of the cutting head in the liquid level of the worktable, thereby simply and effectively solving the noise and dirt problems in the cutting process.

[0010] To solve the above-mentioned technical problems, the present invention adopts the following technical means: A waterjet cutting anti-fouling and noise-reducing liquid level adjustment system is disclosed. The system includes a main water tank and a secondary water tank configured as communicating vessels. The main water tank has an opening at the top and a cutting worktable is installed inside. The secondary water tank is closed and has a control unit. The control unit includes an air inlet and an exhaust valve. The air inlet is connected to a high-pressure air source through a control valve. When the exhaust valve is closed, the high-pressure air source is activated, and high-pressure gas enters the secondary water tank, causing water in the secondary water tank to flow into the main water tank under air pressure. When the high-pressure air source stops operating, the exhaust valve is opened, and water in the main water tank flows back into the secondary water tank.

[0011] The main water tank is a waterjet cutting tank. During waterjet cutting, when both the cutting head nozzle and the cutting surface of the object being cut are submerged in water, the cutting noise is low and the dust and dirt prevention effect is good. To improve the energy utilization of the jet emitted by the cutting head, the nozzle orifice should be about 3mm-10mm away from the liquid surface for better energy utilization, noise reduction, and dirt prevention.

[0012] This technical solution utilizes a secondary water tank connected to the main water tank, using air pressure to force water from the secondary tank into the main tank. This allows for easy adjustment of the liquid level in the main tank during cutting, ensuring that both the cutting head nozzle and the cutting surface of the object are submerged. The jet from the nozzle impacts the cutting surface below the water surface, avoiding noise from the jet impacting the air or cutting the object. Furthermore, because cutting is completed below the liquid surface, the jet impact on the object does not cause splashing, and cutting sand and small particles from the object settle in the main water tank, thus preventing pollution of the production environment.

[0013] As a preferred embodiment, a further technical solution of the present invention is: The regulating system also includes a water level detection sensor, a high-pressure gas source, and a PLC controller. The water level detection sensor is installed in the main water tank and is electrically connected to the PLC controller, transmitting an electrical signal containing the detected liquid level information to the PLC controller. The high-pressure gas source is also electrically connected to the PLC controller, which controls the high-pressure gas source to deliver high-pressure gas to the auxiliary water tank through the air inlet based on the electrical signal from the water level detection sensor. The exhaust valve is equipped with an exhaust solenoid valve, which is electrically connected to the PLC controller. The PLC controller controls the exhaust solenoid valve to operate based on the electrical signal from the water level detection sensor, allowing the gas in the auxiliary water tank to be discharged under water pressure.

[0014] With the above setup, automatic detection and control can be achieved using a water level sensor, a high-pressure air source, and a PLC controller.

[0015] The main water tank and the auxiliary water tank are connected by two connecting pipes, namely the left connecting pipe and the right connecting pipe. The connection points of the left and right connecting pipes with the main water tank are higher than the bottom plate of the main water tank. The space from the connection points to the bottom plate of the main water tank serves as a cutting sand sedimentation zone.

[0016] Two water pipes are connected to ensure the flow of water between the auxiliary water tank and the main water tank.

[0017] The auxiliary water tank is equipped with a manhole and a drain valve. The manhole is located in the middle of the side of the auxiliary water tank, and the drain valve is located at the bottom of the side of the auxiliary water tank.

[0018] The manhole facilitates the connection and maintenance of the auxiliary water tank and its components.

[0019] The exhaust valve also includes a manual exhaust valve.

[0020] The ease of control is increased by setting a manual vent valve.

[0021] The high-pressure air source includes a high-pressure air pump, a connecting pipeline, and a control valve installed on the connecting pipeline.

[0022] A high-pressure air pump is installed to generate high-pressure gas, which is then transported to the auxiliary water tank through a connecting pipeline. A control valve is used to control the delivery of the high-pressure gas.

[0023] This invention also provides an adjustment method for a waterjet cutting anti-fouling and noise reduction liquid level adjustment system, comprising the following steps: a. A main water tank and an auxiliary water tank are installed, with a cutting workbench inside the main water tank; a pipeline connects the main water tank and the auxiliary water tank. b. Set up a control unit to control the flow of water between the main water tank and the auxiliary water tank, thereby changing the liquid level in the main water tank; c. Before starting work, adjust the liquid level in the main water tank, fix the workpiece to be cut on the worktable of the main water tank, adjust the position of the water jet head so that the nozzle of the water jet head is close to the workpiece to be cut, and leave a cutting gap between the nozzle and the workpiece to be cut; then use the control unit to control the water to flow from the auxiliary water tank into the main water tank until the nozzle is submerged in the water. d. Perform cutting operations.

[0024] In step c, the cutting interval is 3mm-7mm.

[0025] In step c, the nozzle orifice is submerged below the water surface to a depth of 3mm-10mm.

[0026] Step d, which involves performing the cutting operation, further includes adjusting the immersion depth of the nozzle according to the actual working conditions, so that there is no splashing during the cutting process after adjusting the nozzle. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a specific embodiment of a water jet cutting anti-fouling and noise reduction liquid level adjustment system and method according to the present invention.

[0028] Figure 2 This is a control principle diagram of the PLC controller of the present invention.

[0029] Figure 3 This is a diagram showing the operational status of the present invention.

[0030] Explanation of reference numerals in the attached diagram: 1 - Main water tank; 2 - Auxiliary water tank; 3 - Connecting water pipe; 4 - Air inlet; 5 - Automatic air vent valve; 6 - Liquid level gauge; 7 - Manhole; 8 - Manual air vent valve; 9 - Drain valve; 10 - Cutting operation water surface; 11 - Water level detection sensor; 12 - High-pressure air source; 13 - PLC controller. Detailed Implementation

[0031] The present invention will be further described below with reference to the embodiments.

[0032] See Figure 1 , Figure 2 As can be seen, the present invention discloses a water jet cutting anti-fouling and noise reduction liquid level adjustment system, the adjustment system comprising a main water tank 1 and a secondary water tank 2 configured as communicating vessels; the main water tank 1 has an opening at the top and a cutting worktable is provided inside the main water tank 1; the secondary water tank 2 is closed and has a control unit, the control unit including an air inlet 4 and an exhaust valve, the air inlet 4 being connected to a high-pressure air source 12 through a control valve; when the exhaust valve is closed, the high-pressure air source 12 operates, high-pressure gas enters the secondary water tank 2, and the water in the secondary water tank 2 flows into the main water tank 1 under the action of air pressure; when the high-pressure air source 12 stops operating, the exhaust valve opens, and the water in the main water tank 1 flows back into the secondary water tank 2.

[0033] Main water tank 1 is a waterjet cutting tank. During waterjet cutting, when both the nozzle of the cutting head and the cutting surface of the object being cut are submerged in water, the cutting noise is low and the dust and dirt prevention effect is good. To improve the energy utilization of the jet emitted by the cutting head, the nozzle is about 5mm away from the liquid surface, which provides better energy utilization, noise reduction, and dirt prevention.

[0034] This technical solution utilizes a secondary water tank 2 connected to the main water tank 1 to form a communication device. Air pressure forces water from the secondary tank into the main water tank 1, allowing for convenient adjustment of the liquid level in the main water tank 1 during cutting. This ensures that both the cutting head nozzle and the cutting surface of the object being cut are submerged below the water surface. The jet ejected from the nozzle impacts the cutting surface below the water surface, avoiding noise from the jet impacting the air or cutting the object. Furthermore, because cutting is completed below the liquid surface, the jet impact on the object does not produce splashing, and cutting sand and small particles from the object being cut settle in the water within the main water tank 1, thus preventing contamination of the production environment.

[0035] The regulating system also includes a water level detection sensor 11, a high-pressure air source 12, and a PLC controller 13. The water level detection sensor 11 is installed in the main water tank 1 and is electrically connected to the PLC controller 13, transmitting an electrical signal containing the detected liquid level information to the PLC controller 13. The high-pressure air source 12 is electrically connected to the PLC controller 13, and the PLC controller 13 controls the high-pressure air source 12 to deliver high-pressure gas to the auxiliary water tank 2 through the air inlet 4 based on the electrical signal from the water level detection sensor 11. The exhaust valve 8 is equipped with an exhaust solenoid valve 5, which is electrically connected to the PLC controller 13. The PLC controller 13 controls the exhaust solenoid valve 5 to operate based on the electrical signal from the water level detection sensor 11, and the gas in the auxiliary water tank 2 is discharged under water pressure.

[0036] With the above settings, automatic detection and control can be achieved using the water level detection sensor 11, high-pressure air source 12, and PLC controller 13.

[0037] The main water tank 1 and the auxiliary water tank 2 are connected by two connecting water pipes 3, namely the left connecting water pipe 3 and the right connecting water pipe 3. The connection points of the left connecting water pipe 3 and the right connecting water pipe 3 with the main water tank 1 are higher than the bottom plate of the main water tank 1. The space from the connection point to the bottom plate of the main water tank 1 serves as a cutting sand sedimentation area.

[0038] Two water pipes 3 are connected to ensure the flow of water between the auxiliary water tank 2 and the main water tank 1.

[0039] The auxiliary water tank 2 is equipped with a manhole 7 and a drain valve 9. The manhole 7 is located in the middle of the side of the auxiliary water tank 2, and the drain valve 9 is located at the bottom of the side of the auxiliary water tank 2.

[0040] The manhole 7 facilitates the connection and maintenance of the auxiliary water tank 2 and its components.

[0041] The exhaust valve is also equipped with a manual exhaust valve 8.

[0042] The ease of control is increased by setting a manual exhaust valve 8.

[0043] The high-pressure air source 12 includes a high-pressure air pump, a connecting pipeline, and a control valve installed on the connecting pipeline.

[0044] A high-pressure air pump is installed to generate high-pressure gas, which is then transported to the auxiliary water tank 2 through a connecting pipeline. A control valve is used to control the transport of the high-pressure gas.

[0045] This invention also provides an adjustment method for a waterjet cutting anti-fouling and noise reduction liquid level adjustment system, comprising the following steps: a. Set up a main water tank 1 and an auxiliary water tank 2, with a cutting workbench inside the main water tank 1; and connect the main water tank 1 and the auxiliary water tank 2 with a pipeline. b. Set up a control unit to control the flow of water between the main water tank 1 and the auxiliary water tank 2, thereby changing the liquid level in the main water tank 1; c. Before starting work, adjust the liquid level in the main water tank 1, fix the workpiece to be cut on the worktable of the main water tank 1, adjust the position of the water jet head so that the nozzle of the water jet head is close to the workpiece to be cut, and leave a cutting gap between the nozzle and the workpiece to be cut; then use the control unit to control the water to flow from the auxiliary water tank 2 into the main water tank 1 until the nozzle is submerged in the water. d. Perform cutting operations.

[0046] In step c, the cutting interval is 3mm-7mm.

[0047] In step c, the nozzle orifice is submerged below the water surface to a depth of 3mm-10mm.

[0048] Step d, which involves performing the cutting operation, further includes adjusting the immersion depth of the nozzle according to the actual working conditions, so that there is no splashing during the cutting process after adjusting the nozzle.

[0049] like Figure 3 As shown, both the nozzle of the cutting head and the cutting surface of the object being cut are submerged in water. The jet from the nozzle impacts the cutting surface below the water surface, avoiding noise from the jet impacting the air and cutting the object. At the same time, since the cutting is completed below the liquid surface, there is no splashing when the jet impacts the object being cut. The water in the main water tank churns and flows, and the surface flow is relatively stable. The cutting sand and small particles of the object being cut settle more easily in the water in the main water tank 1, thus effectively preventing the formation of dirt in the production environment.

[0050] Since the above description is only a specific embodiment of the present invention, the protection of the present invention is not limited thereto. Any equivalent changes or substitutions of the technical features of the present invention that can be conceived by those skilled in the art are covered within the protection scope of the present invention.

Claims

1. A waterjet cutting anti-fouling and noise-reducing liquid level adjustment system, characterized in that: The regulating system includes a main water tank (1) and a secondary water tank (2) configured as communicating vessels. The main water tank (1) has an opening at the top, and a cutting workbench is provided inside the main water tank (1); The auxiliary water tank (2) is enclosed and equipped with a control unit. The control unit includes an air inlet (4) and an exhaust valve. The air inlet (4) is connected to the high-pressure air source (12) through the control valve. When the exhaust valve is closed, the high-pressure gas source (12) is working, and the high-pressure gas enters the auxiliary water tank (2). The water in the auxiliary water tank (2) flows into the main water tank (1) under the action of gas pressure. When the high-pressure air source (12) stops working, the exhaust valve opens, and the water in the main water tank (1) flows back into the auxiliary water tank (2).

2. The waterjet cutting anti-fouling and noise-reducing liquid level adjustment system according to claim 1, characterized in that: The regulating system also includes a water level detection sensor (11), a high-pressure air source (12), and a PLC controller (13). The water level detection sensor (11) is installed in the main water tank (1). The water level detection sensor (11) is electrically connected to the PLC controller (13) and sends an electrical signal of the detected liquid level information to the PLC controller (13). The high-pressure gas source (12) is electrically connected to the PLC controller (13). The PLC controller (13) controls the high-pressure gas source (12) to deliver high-pressure gas to the auxiliary water tank (2) through the air inlet (4) according to the electrical signal of the water level detection sensor (11). The exhaust valve (8) is equipped with an exhaust solenoid valve (5), which is electrically connected to the PLC controller (13). The PLC controller (13) controls the exhaust solenoid valve (5) to work according to the electrical signal of the water level detection sensor (11), and the gas in the auxiliary water tank (2) is discharged under the action of water pressure.

3. The waterjet cutting anti-fouling and noise-reducing liquid level adjustment system according to claim 1, characterized in that: The main water tank (1) and the auxiliary water tank (2) are connected by a connecting water pipe (3). There are two connecting water pipes (3), namely the left connecting water pipe (3) and the right connecting water pipe (3). The connection points of the left connecting water pipe (3) and the right connecting water pipe (3) with the main water tank (1) are higher than the bottom plate of the main water tank (1). The space from the connection point to the bottom plate of the main water tank (1) serves as a cutting sand sedimentation area.

4. The waterjet cutting anti-fouling and noise-reducing liquid level adjustment system according to claim 1, characterized in that: The auxiliary water tank (2) is provided with a manhole (7) and a drain valve (9). The manhole (7) is located in the middle of the side of the auxiliary water tank (2), and the drain valve (9) is located at the bottom of the side of the auxiliary water tank (2).

5. The waterjet cutting anti-fouling and noise-reducing liquid level adjustment system according to claim 1, characterized in that: The exhaust valve is also equipped with a manual exhaust valve (8).

6. The waterjet cutting anti-fouling and noise-reducing liquid level adjustment system according to claim 1, characterized in that: The high-pressure air source (12) includes a high-pressure air pump, a connecting pipeline, and a control valve installed on the connecting pipeline.

7. The adjustment method of the water jet cutting anti-fouling and noise reduction liquid level adjustment system according to any one of claims 1-6, characterized in that... Includes the following steps: a. Set up a main water tank (1) and an auxiliary water tank (2), wherein a cutting workbench is set up inside the main water tank (1); and a pipeline is set up to connect the main water tank (1) and the auxiliary water tank (2); b. Set up a control unit to control the flow of water between the main water tank (1) and the auxiliary water tank (2), thereby changing the liquid level in the main water tank (1); c. Before starting work, adjust the liquid level in the main water tank (1), fix the work to be cut on the worktable of the main water tank (1), adjust the position of the water jet head so that the nozzle of the water jet head is close to the workpiece to be cut, and leave a cutting gap between the nozzle and the workpiece to be cut; then use the control unit to control the water to flow from the auxiliary water tank (2) into the main water tank (1) until the nozzle is submerged in the water. d. Perform cutting operations.

8. The adjustment method of the waterjet cutting anti-fouling and noise reduction liquid level adjustment system according to claim 7, characterized in that: In step c, the cutting interval is 3mm-7mm.

9. The adjustment method of the waterjet cutting anti-fouling and noise reduction liquid level adjustment system according to claim 7, characterized in that: In step c, the nozzle orifice is submerged below the water surface to a depth of 3mm-10mm.

10. The adjustment method of the waterjet cutting anti-fouling and noise reduction liquid level adjustment system according to claim 7, characterized in that: Step d, which involves performing the cutting operation, further includes adjusting the immersion depth of the nozzle according to the actual working conditions, so that there is no splashing during the cutting process after adjusting the nozzle.

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