WO2019237480A1 - Oil supply system and cutting machine - Google Patents

Abstract

Disclosed are an oil supply system (100) and a cutting machine. The oil supply system (100) comprises an oil storage cylinder (11), an oil tank (12) and a pressure regulation device (13), wherein the oil storage cylinder (11) is provided with a first oil inlet (111) and a first oil outlet (112) and is used for supplying oil to an oil-consuming device; the oil tank (12) is provided with a second oil inlet (121) and a second oil outlet (122), the second oil outlet (122) being in communication with the first oil inlet (111) to supply oil to the oil storage cylinder (11); and the pressure regulation device (13) is in communication with the interior of the oil storage cylinder (11) and is used for regulating the pressure applied to oil in the oil storage cylinder (11). The oil supply system (100) can regulate the pressure applied to oil in the oil storage cylinder (11) via the pressure regulation device (13), thereby realizing the functions of automatic oil supply and replenishment.

Description

Oil supply system and cutting machine

cross reference

This disclosure claims the priority of a Chinese patent application filed on June 15, 2018 with the application number 201810622897.X and entitled "Oil Supply System and Cutting Machine", the entire content of which is incorporated herein by reference in its entirety. .

Technical field

The present disclosure relates to the technical field of oil supply systems, and in particular, to an oil supply system and a cutting machine having the same.

Background technique

As a new type of precision cutting equipment, the cutting machine is mainly used in the fields of machinery, electronics, medical, marine, bridge, metallurgy, motor manufacturing, molds, automobiles, sheet metal production, measuring tools, advertising decoration and handicraft manufacturing industries Processing of carbon steel, stainless steel, aluminum alloy, plexiglass, etc. In order to extend the service life of the cutting machine, it is necessary to extend the service life of the cutting blades of the key components of the cutting machine.

Related art often extends the service life of a cutting blade by providing lubricant to the cutting blade. The current cutting machine oil supply system uses a special oil supply pump to automatically supply the cutting oil. Due to the large energy consumption of the oil supply pump and its extreme wear and tear, the cutting machine often fails to work properly. In addition, after the oil pump is broken, it needs to be returned to the factory for maintenance. The maintenance cycle is long and the maintenance cost is high.

It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute related technology known to those of ordinary skill in the art.

Public content

An object of the present disclosure is to provide an oil supply system and a cutting machine that realize an automatic oil supply function and an automatic oil replenishment function through a pressure difference.

According to an aspect of the present disclosure, there is provided an oil supply system including:

An oil storage tank, which is provided with a first oil inlet and a first oil outlet, and the oil storage tank is used to provide oil for an oil-using device;

An oil tank for supplying oil to the oil storage tank, the oil tank is provided with a second oil inlet and a second oil outlet, and the second oil outlet is in communication with the first oil inlet;

A pressure adjusting device is in communication with the interior of the oil storage tank, and adjusts the pressure on the oil in the oil storage tank.

In an exemplary embodiment of the present disclosure, the pressure regulating device includes:

A supercharging unit, configured to provide a supercharging medium to the oil storage tank;

A pressure reduction unit for providing a negative pressure to the oil storage tank, so that the air pressure in the oil storage tank is lower than the air pressure in the oil tank;

A reversing valve controls the oil storage tank to selectively communicate with the pressure increasing unit or communicate with the pressure reducing unit.

In an exemplary embodiment of the present disclosure, the oil supply system further includes:

A liquid level control unit is provided in the oil storage tank, monitors liquid level information in the oil storage tank, converts the liquid level information into a first feedback signal, and sends a first feedback signal to the commutation A valve to control the directional valve to communicate the oil storage tank with the supercharging unit or with the decompression unit. In an exemplary embodiment of the present disclosure, the liquid level control unit includes:

A liquid level gauge for monitoring the liquid level information;

A liquid level controller connected to the liquid level gauge and the reversing valve, configured to collect the liquid level information and send the first feedback signal to the reversing valve to control the reversing valve to convert the An oil storage tank is in communication with the supercharging unit or with the decompression unit.

In an exemplary embodiment of the present disclosure, the boosting unit includes:

An air intake pipe communicating with the interior of the oil storage tank;

A compressor connected to the intake pipe and configured to provide compressed gas to the oil storage tank;

A filter is provided in the intake pipe or the compressor and is used to filter the compressed gas.

In an exemplary embodiment of the present disclosure, the boosting unit further includes:

A pressure reducing valve provided in the intake pipe for adjusting the opening and closing degree of the intake pipe;

A pressure gauge is provided in the intake pipe and is used to measure the air pressure in the intake pipe.

In an exemplary embodiment of the present disclosure, the oil supply system further includes:

An oil outlet pipe connected to the first oil outlet;

A flow control unit is provided in the oil outlet pipeline, monitors the flow information of the oil outlet pipeline, converts the flow information into a second feedback signal, and sends a second feedback signal to the pressure reducing valve to control the The pressure reducing valve adjusts the opening and closing degree of the intake pipe, so that the flow rate of the oil outlet pipe reaches a set flow rate.

In an exemplary embodiment of the present disclosure, the flow control unit includes:

A flow meter for monitoring the flow information;

A flow controller is connected to the flow meter and the pressure reducing valve, and is configured to collect the flow information and send the second feedback signal to the pressure reducing valve.

In an exemplary embodiment of the present disclosure, the oil supply system further includes a cavity, the cavity communicates with the oil storage tank and the pressure regulating device, and the pressure regulating device adjusts the The air pressure in the chamber further regulates the air pressure in the oil storage tank.

According to another aspect of the present disclosure, there is provided a cutting machine including a cutting blade, the cutting machine including an oil supply system, the oil supply system being connected to the cutting blade, and providing cutting for the cutting blade Oil; wherein the oil supply system includes:

An oil storage tank, which is provided with a first oil inlet and a first oil outlet, and the oil storage tank is used to provide oil for an oil-using device;

An oil tank for supplying oil to the oil storage tank, the oil tank is provided with a second oil inlet and a second oil outlet, and the second oil outlet is in communication with the first oil inlet;

A pressure adjusting device is in communication with the interior of the oil storage tank, and adjusts the pressure on the oil in the oil storage tank.

In an exemplary embodiment of the present disclosure, the pressure regulating device includes:

A supercharging unit, configured to provide a supercharging medium to the oil storage tank;

The decompression unit provides a negative pressure to the oil storage tank, so that the air pressure in the oil storage tank is lower than the air pressure in the oil tank. In an exemplary embodiment of the present disclosure, the cutting machine further includes:

A solenoid valve is provided between the oil supply system and the cutting blade. The solenoid valve is opened, the oil supply system supplies oil to the cutting blade, and the solenoid valve is closed. Stop supplying oil to the cutting blade.

The oil supply system provided by the present disclosure can adjust the pressure on the oil in the oil storage tank through a pressure regulating device. When the oil storage tank needs to be replenished, the pressure of the oil in the oil storage tank is reduced by a pressure regulating device, so that the pressure in the oil storage tank is less than the pressure in the oil tank. At this time, the pressure difference The oil in the fuel tank can be pressed to the oil storage tank through the second oil outlet and the first oil inlet, thereby realizing the function of automatic oil replenishment. When the oil storage tank needs to supply oil, the pressure of the oil in the oil storage tank is increased by the pressure regulating device, so as to press the oil in the oil storage tank to the oil consumption device through the first oil outlet, thereby realizing automatic supply. Oil function.

It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and should not limit the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure, and together with the description serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are just some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a framework diagram of an oil supply system according to a first embodiment of the present disclosure.

FIG. 2 is a frame diagram of another oil supply system according to an embodiment of the present disclosure.

FIG. 3 is a schematic structural diagram of an oil supply system according to an embodiment of the present disclosure.

FIG. 4 is a frame diagram of a liquid level control unit according to an embodiment of the present disclosure.

FIG. 5 is a frame diagram of a flow control unit according to an embodiment of the present disclosure.

Among them, the reference signs are described as follows:

100. Oil supply system; 11. Oil storage tank; 111. First oil inlet; 112. First oil outlet; 12. Fuel tank; 121; Second oil inlet; 122; Second oil outlet; Pressure regulating device; 131, booster unit; 1311, compressor; 1312, filter; 1313, intake line; 1314, pressure reducing valve; 1315, pressure gauge; 132, pressure reducing unit; 133, directional valve; 14 Oil inlet pipeline; 15. Oil outlet pipeline; 16. Liquid level control unit; 161. Liquid level gauge; 162. Liquid level controller; 17. Flow control unit; 171. Flow meter; 172. Flow controller; 18. Chamber; 21, cutting blade; 211, solenoid valve; 200, chip.

detailed description

Exemplary embodiments embodying the features and advantages of the present disclosure will be described in detail in the following description. It should be understood that the present disclosure can have various changes in different embodiments, all without departing from the scope of the present disclosure, and the descriptions and drawings therein are for the purpose of illustration, rather than limiting the present invention. public.

In the description of the different exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part of the present disclosure and in which are shown by way of example different exemplary structures, systems and step. It should be understood that other specific schemes of components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "upper", "top", "bottom", "between", etc. may be used in this specification to describe different exemplary features and elements of the present disclosure, these terms are used herein for convenience only, For example according to the directions of the examples described in the drawings. Nothing in this specification should be understood as requiring a particular three-dimensional orientation of the structure to fall within the scope of this disclosure.

Referring to FIG. 1, a frame diagram of an oil supply system 100 capable of embodying the principles of the present disclosure is representatively shown in FIG. 1. The oil supply system 100 mainly includes an oil storage tank 11, an oil tank 12 and a pressure regulating device 13. In this embodiment, the oil supply system 100 proposed in the present disclosure is described by taking an oil supply system applied as a cutting machine as an example. The cutting machine mainly includes a cutting blade 21, and the cutting blade 21 can be used for cutting the chip 200. Those skilled in the art can easily understand that in order to apply the above-mentioned fuel supply system 100 as other equipment that requires fuel supply, various modifications, additions, substitutions, deletions, or other changes are made to the following specific embodiments. Changes are still within the scope of the principles of the fueling system 100 proposed by the present disclosure.

As shown in FIG. 1, in this embodiment, the oil storage tank 11 is provided with a first oil inlet 111 and a first oil outlet 112. The oil storage tank 11 is used to provide oil to the oil-using device. The oil tank 12 is provided with a second oil inlet 121 and a second oil outlet 122. The oil tank 12 communicates with the first oil inlet 111 through the second oil outlet 122 and supplies oil to the oil storage tank 11. The pressure regulating device 13 is disposed in the oil storage tank 11 and communicates with the inside of the oil storage tank, and is used to adjust the pressure on the oil in the oil storage tank 11.

The oil supply system 100 proposed in the present disclosure can adjust the pressure on the oil in the oil storage tank 11 through the pressure regulating device 13. When the oil storage tank 11 needs to be replenished, the pressure of the oil in the oil storage tank 11 is reduced by the pressure regulating device 13 so that the pressure in the oil storage tank 11 is smaller than the pressure in the oil tank 12, At this time, the pressure difference can press the oil in the oil tank 12 to the oil storage tank 11 through the second oil outlet 122 and the first oil inlet 111, thereby realizing the function of automatic oil replenishment. When the oil storage tank 11 needs to supply oil, the pressure of the oil in the oil storage tank 11 is increased by the pressure regulating device 13 so as to press the oil in the oil storage tank 11 to the oil consumption device through the first oil outlet 112. , So as to achieve automatic oil supply function. Each component of the oil supply system 100 provided in the embodiment of the present disclosure is described in detail below.

As shown in FIG. 2 and FIG. 3, in this embodiment, the oil storage tank 11 is a sealed container, and the oil storage tank 11 is used to supply oil to the oil-using device. An air cavity may be left in the upper part of the oil storage tank 11, that is, the oil does not completely fill the oil storage tank 11. The first oil inlet 111 may be provided on the top of the oil storage tank 11, and the first oil outlet 112 may be provided on the bottom of the oil storage tank 11.

In this embodiment, the fuel tank 12 may be a sealed container or an open container. When the fuel tank 12 is a sealed container, an air cavity may be reserved in the upper part of the fuel tank 12 or an air hole may be provided on the top of the fuel tank 12. The second oil outlet 122 may be provided on the top or bottom of the fuel tank 12, and the second oil inlet 121 may be provided on the top of the fuel tank 12. The oil tank 12 can communicate with the second oil outlet 122 and the first oil inlet 111 through the oil inlet pipe 14, and the oil tank 12 can supply oil to the oil storage tank 11 through the oil inlet pipe 14. If the second oil outlet 122 is provided on the top of the oil tank 12, the oil inlet pipe 14 can open to the bottom of the oil tank 12 and communicate the air cavity in the oil storage tank 11 with the oil in the oil tank 12.

In this embodiment, the pressure regulating device 13 may include a pressure increasing unit 131, a pressure reducing unit 132, and a directional valve 133. The boosting unit 131 is in communication with the oil storage tank 11 and is used to provide a boosting medium. The boosting medium may be a compressed gas or a hydraulic pressure. The decompression unit 132 is in communication with the oil storage tank 11 and provides a negative pressure to the oil storage tank 11 so that the air pressure in the oil storage tank 11 is smaller than the air pressure in the oil tank 12. The directional valve 133 may be provided in the oil storage tank 11 and is used to control the oil storage tank 11 to selectively communicate with the pressure increasing unit 131 or communicate with the pressure reducing unit 132. For example, when the liquid level in the oil storage tank 11 reaches a certain value or no oil needs to be replenished in the oil storage tank 11, the oil storage tank 11 is communicated with the pressure reducing unit 132 by adjusting the reversing valve 133, and the pressure reducing unit 132 The gas in the oil storage tank 11 is extracted so that the air pressure in the oil storage tank 11 is lower than the air pressure in the oil tank 12. This pressure difference can pressurize the oil in the oil tank 12 to the oil storage tank 11 through the oil inlet pipe 14, so that The oil enters the oil storage tank 11 from the oil tank 12. When the oil is filled in the storage tank or filled to a preset liquid level, the reversing valve 133 is switched to make the storage tank 11 communicate with the booster unit 131. The booster unit 131 provides a pressurized medium, such as compressed gas, to The oil in the oil storage tank 11 is hydraulically pressed to the oil outlet line 15, so that the oil flows out from the oil outlet line 15.

Further, the supercharging unit 131 may include a compressor 1311, a filter 1312, and an intake pipe 1313. Among them, the compressor 1311 is connected to the intake pipe 1313 for compressing the air so that the air becomes high-pressure air. The filter 1312 may be provided in the intake pipe 1313 or the compressor 1311 to filter air. The boosting unit 131 may further include a pressure reducing valve 1314 and a pressure gauge 1315. The pressure reducing valve 1314 is provided in the intake pipe 1313 and is used to adjust the opening and closing degree of the intake pipe 1313. A pressure gauge 1315 is provided in the intake pipe 1313 and is used to measure the air pressure in the intake pipe 1313. The supercharging unit 131 may also be a hydraulic rod or other components that can provide hydraulic pressure, which is not limited herein. The decompression unit 132 may be a vacuum generator. Specifically, the decompression unit may be a roots vacuum pump or a vacuum fan. Specifically, the way in which the decompression unit 132 provides a negative pressure to the oil storage tank is through a vacuum device such as a roots vacuum pump or The fan sucks the gas out of the oil storage tank.

In this embodiment, the oil supply system 100 may further include an oil outlet pipe 15 and a liquid level control unit 16. The oil outlet line 15 is connected to the first oil outlet 112. The liquid level control unit 16 is provided in the oil storage tank 11 and is used to monitor the liquid level information in the oil storage tank 11, convert the liquid level information into a first feedback signal, and send the first feedback signal to control the reversing valve 133 and The liquid level in the oil storage tank 11 is brought to a set liquid level. Among them, as shown in FIG. 4, the liquid level control unit 16 may include a liquid level meter 161 and a liquid level controller 162. The liquid level gauge 161 may be disposed in the oil storage tank 11 and used for monitoring the liquid level information in the oil storage tank 11. The liquid level controller 162 is connected to the liquid level gauge 161 and the reversing valve 133, and is configured to collect the liquid level information and send a first feedback signal to the reversing valve 133 to control whether the reversing valve 133 is reversing.

Further, the adjustment control mode between the liquid level controller 162 and the directional valve 133 may be a PID adjustment mode. For example, it can be adjusted by using a PID regulator as the liquid level controller 162, or by connecting a PID regulator between the liquid level controller 162 and the directional valve 133. In addition, the liquid level controller 162 may also adopt a PLC programmable controller or other programmable controllers, which is not limited to this embodiment. The liquid level control unit 16 is used to control the oil level in the oil storage tank 11, and the liquid level in the oil storage tank 11 can be controlled to a preset value without manual monitoring, so that the oil liquid level is not less than A certain value, thereby avoiding that the oil storage tank 11 is an empty tank, and further ensuring the continuity of oil supply.

In this embodiment, the oil supply system 100 may further include a flow control unit 17. The flow control unit 17 is provided in the oil outlet pipe 15 and is used to monitor the flow information of the oil outlet pipe 15 to convert the flow information into a second feedback signal and send the second feedback signal to control the pressure reducing valve 1314 to make the oil outlet pipe The flow on the road 15 reaches the set flow. Among them, as shown in FIG. 5, the flow control unit 17 may include a flow meter 171 and a flow controller 172. The flow meter 171 may be provided in the oil outlet pipe 15 for monitoring the flow information of the oil outlet pipe 15. The flow controller 172 is connected to the flow meter 171 and the pressure reducing valve 1314, and is configured to collect the flow information and send a feedback signal to the pressure reducing valve 1314 to control whether the pressure reducing valve 1314 adjusts the opening and closing degree of the intake pipe 1313.

Further, the adjustment control mode between the flow controller 172 and the pressure reducing valve 1314 may be a PID adjustment mode. PID is the most commonly used control method in industrial production. PID controller uses proportional, integral, and differential to calculate the control amount based on the system error. For example, the PID regulator can be used as the flow controller 172, or it can be adjusted by connecting the PID regulator between the flow controller 172 and the pressure reducing valve 1314. In addition, the flow controller 172 may also be a PLC programmable controller, or other programmable controllers, and is not limited to this embodiment. The flow rate control unit 17 is used to control the oil flow rate of the oil output line 15, and only the required flow rate needs to be set, so that the oil flow rate can be more balanced.

The oil supply system 100 uses liquid level control and flow control to reduce the work intensity of the operator, improve the work efficiency, and enable the oil output to meet the demand and reduce the occurrence of oil cuts.

With reference to the above-mentioned exemplary description of the oil supply system 100 provided by the present disclosure, the work flow of a cutting machine having the oil supply system 100 mainly includes: when the cutting blade 21 is performing an action, the oil storage tank is enlarged by the pressure regulating device 13 The pressure of the oil in 11 is used to press the cutting oil in the oil storage tank 11 to the cutting blade 21 through the oil outlet pipe 15 to supply the cutting oil to the cutting blade 21. When a small amount of cutting oil remains in the oil storage tank 11, that is, the cutting oil in the oil storage tank 11 reaches a preset value, the liquid level controller 162 of the liquid level control unit 16 controls the reversing valve 133 to switch, The tank 11 communicates with the decompression unit 132. Due to the role of the decompression unit 132, specifically, due to the negative pressure suction effect of the decompression unit, the air pressure in the oil storage tank 11 is lower than the air pressure in the oil tank 12, and the pressure difference will pass the cutting oil in the oil tank 12 through the oil inlet pipe. 14 is pressed into the oil storage tank 11. When the cutting oil in the oil storage tank 11 is full or reaches another preset value, the liquid level controller 162 of the liquid level control unit 16 controls the directional valve 133 to switch again, and at this time, the oil storage tank 11 communicates with the pressure increasing unit. 131. The supercharging unit 131 provides a supercharging medium, so as to press the cutting oil in the oil storage tank 11 to the cutting blade 21 and circulate accordingly.

In this embodiment, the oil supply system 100 may further include a cavity 18. The cavity 18 may be provided between the oil storage tank 11 and the pressure regulating device 13 and communicates with the oil storage tank 11. The pressure regulating device 13 may be used to adjust the air pressure of the cavity 18. The pressure adjustment device adjusts the air pressure in the oil storage tank by adjusting the air pressure in the chamber. At this time, the directional valve 133 may be provided in the chamber 18 for controlling the chamber 18 to communicate with the pressure increasing unit 131 or communicate with the pressure reducing unit 132.

An embodiment of the present disclosure also provides a cutting machine. This cutting machine has the oil supply system 100 of the above embodiment. In this embodiment, the cutting machine may include a cutting blade 21, and the cutting blade 21 may be used to cut the chip 200. The oil outlet of the oil outlet line 15 of the oil supply system 100 in the cutting machine may be provided at the cutting blade 21 to provide the cutting oil required when the cutting blade 21 cuts the chip 200. The cutting machine may be a photovoltaic glass cutting machine, and the chip 200 may be a glass substrate.

Further, in an exemplary embodiment of the present disclosure, the pressure adjusting device includes:

A supercharging unit, configured to provide a supercharging medium to the oil storage tank;

A pressure reduction unit for providing a negative pressure to the oil storage tank, so that the air pressure in the oil storage tank is lower than the air pressure in the oil tank;

Further, a solenoid valve 211 may be provided between the oil supply system 100 and the cutting blade 21, and the electromagnetic valve 211 controls the oil supply system 100 to supply oil to the cutting blade 21 and stop supplying oil, that is, to perform a cutting operation on the cutting machine The solenoid valve 211 is opened at any time, and the oil supply system 100 provides the required cutting oil to the cutting blade 21. When the cutting machine stops the cutting operation, the solenoid valve 211 is closed, and the oil supply system 100 stops oil supply. For the oil supply process of the cutting machine, reference may be made to the foregoing embodiments, and details are not described herein again.

For the beneficial effects of the cutting machine of this embodiment, reference may also be made to the beneficial effects of the oil supply system 100 described above, which will not be described in detail here.

It should be noted here that the cutting machine shown in the drawings and described in this specification is just one example of many types of oil supply systems that can use the principles of the present disclosure. It should be clearly understood that the principles of the present disclosure are by no means limited to any details of the cutting machine or any component of the cutting machine shown in the drawings or described in this specification.

Exemplary embodiments of the oil supply system and the cutting machine proposed by the present disclosure have been described and / or illustrated in detail above. However, the embodiments of the present disclosure are not limited to the specific embodiments described herein. Instead, the components and / or steps of each embodiment may be used independently and separately from other components and / or steps described herein. Each component and / or step of one embodiment may also be used in combination with other components and / or steps of other embodiments. When introducing the elements / components / etc. Described and / or illustrated herein, the terms “a”, “an” and “the above” are used to indicate the presence of one or more elements / components / etc. The terms "comprising," "including," and "having" are used to indicate open-ended inclusion and mean that there may be additional elements / components / etc. In addition to the listed elements / components / etc. Although the oil supply system and the cutting machine proposed by the present disclosure have been described according to different specific embodiments, those skilled in the art will recognize that changes can be made to the implementation of the present disclosure within the spirit and scope of the claims.

Claims (12)

1. An oil supply system includes:

   An oil storage tank, which is provided with a first oil inlet and a first oil outlet, and the oil storage tank is used to provide oil for an oil-using device;

   An oil tank for supplying oil to the oil storage tank, the oil tank is provided with a second oil inlet and a second oil outlet, and the second oil outlet is in communication with the first oil inlet;

   A pressure adjusting device is in communication with the interior of the oil storage tank, and adjusts the pressure on the oil in the oil storage tank.
2. The oil supply system according to claim 1, wherein the pressure regulating device comprises:

   A supercharging unit, configured to provide a supercharging medium to the oil storage tank;

   A pressure reduction unit for providing a negative pressure to the oil storage tank, so that the air pressure in the oil storage tank is lower than the air pressure in the oil tank;

   A reversing valve controls the oil storage tank to selectively communicate with the pressure increasing unit or communicate with the pressure reducing unit.
3. The oil supply system according to claim 2, wherein the oil supply system further comprises:

   A liquid level control unit is provided in the oil storage tank, monitors liquid level information in the oil storage tank, converts the liquid level information into a first feedback signal, and sends the first feedback signal to the oil storage tank. A reversing valve to control the reversing valve to communicate the oil storage tank with the supercharging unit or with the decompression unit.
4. The oil supply system according to claim 3, wherein the liquid level control unit comprises:

   A liquid level gauge for monitoring the liquid level information;

   A liquid level controller is connected to the liquid level gauge and the reversing valve, and is configured to collect the liquid level information and send the first feedback signal to the reversing valve.
5. The fuel supply system according to claim 2, wherein the booster unit comprises:

   An air intake pipe communicating with the interior of the oil storage tank;

   A compressor connected to the intake pipe and configured to provide compressed gas to the oil storage tank;

   A filter is provided in the intake pipe or the compressor and is used to filter the compressed gas.
6. The fuel supply system according to claim 5, wherein the booster unit further comprises:

   A pressure reducing valve provided in the intake pipe for adjusting the opening and closing degree of the intake pipe;

   A pressure gauge is provided in the intake pipe and is used to measure the air pressure in the intake pipe.
7. The oil supply system according to claim 6, wherein the oil supply system further comprises:

   An oil outlet pipe connected to the first oil outlet;

   A flow control unit is provided in the oil outlet pipeline, monitors the flow information of the oil outlet pipeline, converts the flow information into a second feedback signal, and sends the second feedback signal to the pressure reducing valve, Controlling the pressure reducing valve to adjust the opening and closing degree of the intake pipeline so that the flow rate of the oil outlet pipeline reaches a set flow rate.
8. The oil supply system according to claim 7, wherein the flow control unit includes:

   A flow meter for monitoring the flow information;

   A flow controller is connected to the flow meter and the pressure reducing valve, and is configured to collect the flow information and send the second feedback signal to the pressure reducing valve.
9. The oil supply system according to claim 1, further comprising a cavity, said cavity communicating with said oil storage tank and said pressure regulating device, said pressure regulating device adjusting said cavity by The air pressure in the chamber further regulates the air pressure in the oil storage tank.
10. A cutting machine includes a cutting blade, wherein the cutting machine includes an oil supply system, the oil supply system is connected to the cutting blade, and provides cutting oil for the cutting blade; wherein the oil supply The system includes:

    An oil storage tank, which is provided with a first oil inlet and a first oil outlet, and the oil storage tank is used to provide oil for an oil-using device;

    An oil tank for supplying oil to the oil storage tank, the oil tank is provided with a second oil inlet and a second oil outlet, and the second oil outlet is in communication with the first oil inlet;

    A pressure adjusting device is in communication with the interior of the oil storage tank, and adjusts the pressure on the oil in the oil storage tank.
11. The cutting machine according to claim 10, wherein the pressure adjusting device comprises:

    A supercharging unit, configured to provide a supercharging medium to the oil storage tank;

    A pressure reduction unit for providing a negative pressure to the oil storage tank, so that the air pressure in the oil storage tank is lower than the air pressure in the oil tank;

    A reversing valve controls the oil storage tank to selectively communicate with the pressure increasing unit or communicate with the pressure reducing unit.
12. The cutting machine according to claim 10, further comprising a solenoid valve provided between the oil supply system and the cutting blade, opening the solenoid valve, and the oil supply system cutting to the cutting The cutter head supplies oil, the solenoid valve is closed, and the oil supply system stops supplying oil to the cutting cutter head.

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