CN114768352A - Automatic cleaning method for cutting fluid circulating system of wire cutting machine - Google Patents

Abstract

The embodiment of the application provides an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine, wherein the cutting fluid circulating system comprises a filtering device and a cleaning power device, and the cleaning power device is communicated with the filtering device; the cleaning power device is a water-air backwashing component; the automatic cleaning method comprises the following steps: the method comprises the following steps: judging whether the wire cutting machine is in a non-cutting operation state, if so, executing the next step; step two: and controlling the water-gas backwashing component to start and clean the filtering device. From this setting for above-mentioned filter equipment can realize the self-cleaning to the filter screen, need not the manual work and demolishs the filter screen and wash, and self-cleaning guarantees the cleaning performance of filter screen, solves the manual work and forgets the condition of wasing the filter screen and just carrying out the cutting operation, improves cutting operating efficiency and guarantees one piece quality, can also save the cost simultaneously, need not to change the filter bag after every cutting the quire silicon rod.

Description

Automatic cleaning method for cutting fluid circulating system of wire cutting machine

Technical Field

The application relates to the technical field of wire cutting, in particular to an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine.

Background

When hard and brittle materials are cut, squared, sliced and the like by a wire cutting device, the cleanliness of cutting liquid has great influence on the quality of finished products of workpieces, and in order to ensure the quality of the workpieces, a filtering device for filtering the cutting liquid needs to be arranged in a cutting liquid circulating system. The filtering device used in the industry at present is generally in the form of a filter cartridge, a filter screen and a filter bag are arranged in the filter cartridge, and the filter screen and the filter bag can effectively filter impurities such as thread ends and particles in cutting fluid. But can produce a large amount of tiny dusts during multi-thread cutting, along with cutting process's continuation, the hole of filter screen and filter bag is blockked up gradually, leads to the filter effect variation, cutting fluid flow reduces, causes the problem such as wire jumper, broken string among the section process, influences into piece quality and machining efficiency.

The mode that this problem generally adopted in the industry at present is for manual change filter bag and washing the cartridge filter, before cutting the operation at every turn begins, operating personnel need take apart the cartridge filter, take out the old filter bag and change new filter bag, and linear cutting machine accumulation operation still need take out the filter screen and carry out manual cleaning after a period of time moreover. This way not only seriously affects the working efficiency, but also the replacement of the filter bag leads to high production cost. The filter screen and the filter bag in the filter cartridge are replaced or cleaned, the cleaning effect varies from person to person, and the situation that the cutting operation is performed after the cleaning is forgotten also exists. This results in an increase in cutting consumables, a decrease in cutting work efficiency and an influence on the sheet quality.

Disclosure of Invention

The embodiment of the application provides a cutting fluid circulation system's of wire cut electrical discharge machining self-cleaning method to solve current filter equipment and need the manual work to change or wash, operate complicated and cleaning performance influence the problem of piece quality in the cartridge filter.

In order to achieve the above purpose, the present application provides the following technical solutions:

the automatic cleaning method of the cutting fluid circulating system of the wire cutting machine comprises the steps that the cutting fluid circulating system comprises a filtering device and a cleaning power device, and the cleaning power device is communicated with the filtering device; the cleaning power device is a water-air backwashing component; the automatic cleaning method comprises the following steps:

the method comprises the following steps: judging whether the wire cutting machine is in a non-cutting operation state, if so, executing the next step;

step two: and controlling the water-gas backwashing component to start and clean the filtering device.

Optionally, the water-gas backwashing component comprises a backwashing liquid pipeline and a backwashing gas pipeline, and the backwashing liquid pipeline and the backwashing gas pipeline are respectively connected with the filtering device;

the second step specifically comprises:

and controlling the back flushing liquid pipeline to be communicated until the filter device is full of flushing liquid, and controlling the back flushing gas pipeline to inflate the filter device at a preset frequency so as to clean the filter device.

Optionally, the cutting fluid circulation system further comprises a blowdown line and a cutting fluid output line; the sewage discharge pipeline and the cutting fluid output pipeline are respectively communicated with the filtering device;

the method also comprises the following steps between the first step and the second step:

and controlling the sewage discharge pipeline and the cutting fluid output pipeline to be disconnected.

Optionally, the cutting fluid circulation system further comprises a fluid supply device for providing power for the cutting fluid; one end of the sewage discharge pipeline is communicated with the filtering device, and the other end of the sewage discharge pipeline is communicated with the liquid supply device through a return pipeline;

the method further comprises the following steps:

step three: judging whether the inflation time of the backflushing gas pipeline is greater than or equal to a preset time length, if so, executing the next step;

step four: and controlling the back flushing liquid pipeline to be disconnected and the sewage discharge pipeline to be connected, and conveying the cleaning liquid which is used for cleaning the filter screen into the liquid supply device.

Optionally, the method further comprises:

step five: and judging whether the washing times are greater than or equal to a first preset time, and if not, repeating the first step to the fourth step.

Optionally, between the step one and the step two, further comprising:

judging whether the wire cutting machine has continuously cut for a preset number of times or not;

and if so, executing the second step.

Optionally, the preset number of times is 1-2 times.

Optionally, the first step further includes:

and if the wire cutting machine is not in the non-cutting operation state, repeating the judgment of the first step.

Optionally, the cutting fluid circulation system further comprises:

the spraying device is provided with a plurality of spraying pipes and is used for spraying cutting fluid to the workpiece cutting area;

and the collecting device is used for collecting the cutting fluid below the spraying device, and the liquid supply device is communicated with the collecting device.

Optionally, the filtering device comprises a filter cartridge and a filter screen, and the filter screen is located in the filter cartridge; the filter screen is provided with a cutting fluid inlet, and the filter device is provided with the sewage discharge pipeline, the cutting fluid output pipeline and the water-gas backwashing component;

the cutting fluid inlet is used for communicating the interior of the filter screen with the exterior of the filter device;

the sewage discharge pipeline is used for discharging cleaning liquid and dirt inside the filter screen;

the cutting fluid output pipeline is used for discharging the filtered cutting fluid;

the water-air backwashing component is arranged corresponding to the filter screen to perform water-air backwashing on the filter screen, so that the washing effect is improved.

Optionally, one end of the sewage draining pipeline is provided with a sewage draining outlet, the sewage draining outlet is positioned on the bottom wall of the filter screen, and the other end of the sewage draining pipeline is positioned outside the filter device;

one end of the cutting fluid output pipeline is provided with a cutting fluid outlet, the cutting fluid outlet is positioned on the bottom wall of the filter cylinder, and the other end of the cutting fluid output pipeline is positioned outside the filter device; the filth after the filter screen washing can be along outside the diapire discharge filter screen of filter screen, guarantees the smooth and easy nature of filter screen bottom better, prevents to appear blockking up in the bottom.

Optionally, the second end of the backflushing liquid pipeline is communicated with the blowdown pipeline, and the blowdown port is reused as a liquid inlet of the backflushing liquid pipeline.

Optionally, the second end of the backflushing gas pipeline is communicated with the blowdown pipeline, and the blowdown port is reused as a gas inlet of the backflushing gas pipeline. Can wash the bottom of filter screen better through the aqueous vapor, improve the washing effect, reduce the impurity deposit of filter screen bottom, debris after the washing simultaneously can be along with the blowdown channel is discharged.

Optionally, the second end of the backflushing gas pipeline is communicated with the cutting liquid output pipeline, and the cutting liquid outlet is reused as a gas inlet of the backflushing gas pipeline; during cleaning, cleaning water and backflushing gas enter the inside of the filter screen from the bottom of the filter screen, so that cleaning liquid in the cylinder is disturbed violently to brush the inner wall of the filter screen.

Optionally, the second end of the backflushing liquid pipeline and the second end of the backflushing gas pipeline are respectively communicated with the cutting liquid output pipeline, and the cutting liquid outlet is reused as a liquid inlet of the backflushing liquid pipeline and a gas inlet of the backflushing gas pipeline; so that the flushed sewage can be discharged through the sewage discharge port in the filter screen.

Optionally, the cutting fluid circulation system further comprises:

and the turbulence barrel is detachably and fixedly connected in the filter screen and is used for performing turbulence on the water and the air of the water and air backwashing component.

Optionally, the second end of the backflushing liquid pipeline and the second end of the backflushing gas pipeline have the same backflushing interface, and the backflushing interface is located on the circumferential outer wall of the filter cartridge and opposite to the outer wall of the filter screen.

Optionally, one end of the sewage draining pipeline is communicated with the filtering device, and the other end of the sewage draining pipeline is communicated with the liquid supply device.

Optionally, the liquid supply device has a liquid supply pump and a liquid supply cylinder, and a first end of the liquid supply pump is communicated with the liquid supply cylinder;

the cutting fluid circulating system further comprises a cutting fluid input pipeline, the first end of the cutting fluid input pipeline is communicated with the second end of the fluid supply pump, and the second end of the cutting fluid input pipeline is communicated with the filtering device.

According to the automatic cleaning method of the cutting fluid circulating system of the wire cutting machine, the cutting fluid circulating system comprises a filtering device and a cleaning power device, and the cleaning power device is communicated with the filtering device; the cleaning power device is a water-air backwashing component; the automatic cleaning method comprises the following steps: the method comprises the following steps: judging whether the wire cutting machine is in a non-cutting operation state, if so, executing the next step; step two: and controlling the water-gas backwashing component to start and clean the filtering device. From this setting for above-mentioned filter equipment can realize the self-cleaning to the filter screen, need not the manual work and demolishs the filter screen and wash, and self-cleaning guarantees the cleaning performance of filter screen, solves the manual work and forgets the condition that washs the filter screen and just carry out the cutting operation, improves cutting operating efficiency and guarantees a piece quality, can also save the cost simultaneously, need not to change the filter bag after every cut silicon rod.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a filtering apparatus in an automatic cleaning method of a cutting fluid circulation system of a wire cutting machine according to a first embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a filtering apparatus in an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine according to a second embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a filtering apparatus in an automatic cleaning method of a cutting fluid circulation system of a wire cutting machine according to a third embodiment of the present application;

fig. 4 is a schematic structural diagram of a filtering apparatus in an automatic cleaning method of a cutting fluid circulation system of a wire cutting machine according to a fourth embodiment of the present application;

fig. 5 is a schematic structural diagram of a cutting fluid circulation system in an automatic cleaning method of the cutting fluid circulation system of the wire cutting machine according to the present application;

fig. 6 is a schematic diagram of a fluid path of a cutting fluid circulation system in an automatic cleaning method of the cutting fluid circulation system of the wire cutting machine according to the first embodiment of the present disclosure;

fig. 7 is a schematic diagram of a fluid path of a cutting fluid circulating system in an automatic cleaning method of the cutting fluid circulating system of the wire cutting machine according to the second embodiment of the present application;

fig. 8 is a schematic cross-sectional view illustrating a filter cartridge in an automatic cleaning method for a cutting fluid circulation system of a wire cutting machine according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of the wire cutting machine in the automatic cleaning method of the cutting fluid circulation system of the wire cutting machine according to the present application;

fig. 10 is a schematic flow chart illustrating an automatic cleaning method of a cutting fluid circulation system of the wire cutting machine according to the present application.

The drawings are numbered as follows:

the device comprises a liquid supply device 10, a spraying device 20, a heat exchange device 30, a flow meter 40, a filtering device 50, a pressure detection assembly 70, a collecting device 80 and a water-gas backwashing assembly 110;

a cutting fluid outlet 51, a sewage outlet 52, a cylinder cover 54, a filtering cylinder 55, a filter screen 56, a cutting fluid inlet 57, a turbulent flow barrel 514 and a boss 515;

a cutting fluid input pipeline 90, a cutting fluid output pipeline 91 and a sewage discharge pipeline 92;

a back flushing liquid pipeline 111 and a back flushing gas pipeline 112;

a cutting fluid outlet valve 300, a blow-down valve 400, a fluid path electromagnetic valve 700 and an electromagnetic valve 800;

the automatic winding machine comprises an electric control cabinet 1001, a liquid path system 1002, a winding chamber assembly 1003, a winding chamber shield assembly 1004, a main shaft assembly 1005, a lathe bed assembly 1006, a four-column feeding swing mechanism 1007, a cutting area assembly 1008 and a cutting area shield assembly 1009.

Detailed Description

The embodiment of the invention discloses an automatic cleaning method for a cutting fluid circulating system of a wire cutting machine, which aims to solve the problems that the existing filtering device needs to replace or clean a filter screen in a filter cylinder manually, the operation is complex, and the cleaning effect influences the quality of tablets.

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict.

As shown in fig. 10, fig. 10 is a schematic flow chart of an automatic cleaning method of a cutting fluid circulation system of a wire cutting machine according to the present application. The application provides an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine, which is suitable for automatically cleaning a cutting fluid filtering device in the cutting fluid circulating system of the wire cutting machine. The method is applicable to a cutting fluid circulation system, i.e. the cutting fluid circulation system structures mentioned here and below can be arranged with reference to the cutting fluid circulation system in the above-described embodiment. The cutting fluid circulating system comprises a filtering device and a cleaning power device, and the cleaning power device is communicated with the filtering device; the cleaning power device is a water-gas backwashing component; specifically, the cutting fluid circulating system comprises a sewage discharge pipeline 92, a cutting fluid output pipeline 91, a filtering device 50 and a water-gas backwashing component 110 which are mutually communicated; the sewage draining pipeline 92 and the cutting fluid output pipeline 91 are respectively communicated with the filtering device 50; the water gas backwash assembly 110 includes a backwash liquid line 111 and a backwash gas line 112. Accordingly, the related structural configuration of the cutting fluid circulation system not mentioned in this embodiment may refer to a specific implementation manner of the cutting fluid circulation system in the foregoing embodiment of the present application, and is not described in detail below. The automatic cleaning method comprises the following steps:

the method comprises the following steps: judging whether the wire cutting machine is in a non-cutting operation state, if so, executing the next step:

step two: and controlling the water-gas backwashing component to start and clean the filtering device.

The non-cutting operation state is other states of the wire cutting machine outside the cutting operation, and is a non-cutting operation state, and the non-cutting operation state includes a state that the wire cutting machine is not subjected to cutting operation after the wire cutting machine is started, and a feeding and discharging state that a cutting device of the wire cutting machine is in pause operation and materials are fed and discharged. Preferably, the non-cutting operation state is a feeding and discharging state, at the moment, the cutting device of the wire cutting machine is in pause operation, and the material feeding device carries out feeding and discharging operation, so that the filter screen 56 is cleaned in the process of two times of cutting operation gaps, and the cutting operation efficiency and the filter screen cleaning effect are guaranteed. Meanwhile, the whole process is more compact.

From this setting for above-mentioned filter equipment can realize the self-cleaning to the filter screen, need not the manual work and demolishs the filter screen and wash, and self-cleaning guarantees the cleaning performance of filter screen, solves the manual work and forgets the condition of wasing the filter screen and just carrying out the cutting operation, improves cutting operating efficiency and guarantees one piece quality, can also save the cost simultaneously, need not to change the filter bag after every cutting the quire silicon rod.

In the embodiment, the backflushing liquid pipeline and the backflushing gas pipeline are respectively connected with the filtering device;

the second step specifically comprises:

and controlling the backflushing liquid pipeline 111 to be conducted until the filter device is filled with the flushing liquid, and controlling the backflushing gas pipeline 112 to inflate the filter device at a preset frequency so as to clean the filter device.

The cutting fluid circulating system also comprises a sewage discharge pipeline and a cutting fluid output pipeline; the sewage discharge pipeline and the cutting fluid output pipeline are respectively communicated with the filtering device;

the method also comprises the following steps between the first step and the second step:

and controlling the sewage discharge pipeline and the cutting fluid output pipeline to be disconnected.

When the wire cutting machine is in a non-cutting operation state, the blowdown pipeline 92 and the cutting fluid output pipeline 91 are controlled to be disconnected, namely the blowdown valve 400 and the cutting fluid outlet valve 300 are controlled to be disconnected; the cleaning water can not flow into the cutting fluid output pipeline 91, so that the possibility of mixing the cleaning water and spraying the cleaning water from the spraying device 20 is reduced, and the cleanliness of the cutting fluid is ensured; controlling the backflushing liquid pipeline 111 to be conducted (the liquid way electromagnetic valve 700 is conducted) until the filter cartridge of the cutting liquid circulating system is filled with the flushing liquid, and then closing the backflushing liquid pipeline 111 to ensure that the filter cartridge is filled with water during flushing; the backflush gas line 112 is controlled to open (the solenoid valve 800 is opened) to charge the filter device 50 at a preset frequency to flush the filter screen 56. The preset frequency is more than or equal to 0 and less than or equal to 5 Hz.

Specifically, one end of the sewage discharge pipeline 92 is communicated with the filtering device 50, and the other end is communicated with the liquid supply device 10;

the method further comprises the following steps:

step three: judging whether the inflation time of the backflushing gas pipeline 112 is greater than or equal to a preset time length, if so, executing a step four;

step five: and controlling the back flushing liquid pipeline 111 to be disconnected and the sewage discharge pipeline 92 to be connected, and conveying the cleaning liquid which is used for washing the filter screen 56 into the liquid supply device 10.

The preset time can be set to t being more than or equal to 30s and less than or equal to 10min, and the preset time is preferably 5 minutes.

The method further comprises the following steps:

step five: and judging whether the washing times are greater than or equal to a first preset time, and if not, repeating the steps from the first step to the fourth step.

The first preset time is more than or equal to 1 and less than or equal to 10, and preferably the first preset time is 5 or 10.

Further, between the first step and the second step, the method further comprises the following steps:

judging whether a cutting device of the wire cutting machine has continuously cut for a preset number of times;

if yes, the wire cutting machine is controlled to be converted from the cutting operation state to the non-cutting operation state, and the second step is executed. The preset times are 1-2 times. Specifically, preferably 1 time, after the cutting device of the wire cutting machine cuts the material each time, the filter screen 56 is washed, and since the cutting device stops cutting at present, the spraying device 20 does not need to spray the cutting fluid, and further does not need to filter the cutting fluid, in view of this, the washing work of the filter screen 56 is carried out during this period, the filtering effect of the filter screen 56 is ensured, and meanwhile, the operation process is compact. In other embodiments, the number of times may be set to 2 or other times, which are all within the protection scope of the present application.

The first step of the method also comprises the following steps: and if the wire cutting machine is not in the non-cutting operation state, repeating the step one. That is, only when the wire cutting machine is judged to be in a non-cutting operation state, the cleaning operation is carried out, otherwise, the operation state of the wire cutting machine is judged again.

In a specific embodiment, as shown in fig. 9, fig. 9 is a schematic structural diagram of a wire cutting machine in an automatic cleaning method of a cutting fluid circulation system of the wire cutting machine according to the present application. The wire cutting machine comprises a cutting fluid circulating system, an electric control cabinet 1001, a fluid path system 1002, a winding chamber assembly 1003, a winding chamber shield assembly 1004, a cutting device and a cutting area assembly 1008; cutting zone assembly 1008 includes, among other things, a bed assembly 1006, a spindle assembly 1005, a four-column feed swing mechanism 1007, and a cutting zone shield assembly 1009.

The electric control cabinet 1001 is used for arranging a cabinet body of an electrical assembly. The fluid path system 1002 provides a cutting fluid supply assembly for the cutting zone assembly 1008, a cutting fluid heat exchange assembly for cooling the cutting fluid, and a cooling fluid heat exchange assembly for cooling the microtome equipment. The winding chamber assembly 1003 is used for taking up, paying out, winding and tension control areas of the steel wire.

Wherein, cutting device is used for cutting the work piece, and cutting device can set up to loop wire cutting device or multi-thread cutting device, can set up cutting device's concrete structure as required, all is in the protection scope of this application. The control device can be a PLC controller, a display screen and other control devices, the control device is preferably arranged on the wire cutting machine, and preferably, the control device is in wireless communication connection with the master control device of the operation master control room so as to realize real-time monitoring, data uploading and other operations on each wire cutting machine in the operation master control room.

Taking silicon rod slicing as an example, the cutting area assembly 1008 is an area assembly for cutting and processing a crystal rod, and the bed body component 1006 is used as a bearing component of the cutting component and the winding chamber component 1003; the main shaft assembly 1005 is provided with a high-speed rotating main shaft assembly 1005 with an internal circulation liquid cooling function, the left and the right of the main shaft assembly are respectively provided with one set, a diamond wire is wound on the main shaft assembly to form a cutting area, and the rear end of the main shaft is connected with a driving motor. The four-column feeding swing mechanism 1007 has a vertical direction feeding mechanism with a swing function, and is guided by four guide rails.

Generally, a cutting machine has a main frame, a cutting area frame is disposed at one end of the main frame in a length direction, and an electric control cabinet 1001, a winding chamber assembly 1003 and a winding chamber shield assembly 1004 are sequentially disposed on the main frame from top to bottom in a vertical direction. A portion of the fluid path system 1002 is provided at an end of the mainframe remote from the bed assembly 1006. In the vertical direction, a cutting area shield assembly 1009, a cutting area assembly 1008, a four-column feeding swing mechanism 1007, a spindle assembly 1005, a liquid supply assembly and a lathe bed assembly 1006 are respectively arranged on the cutting area rack from top to bottom in sequence. The arrangement mode optimizes the installation space of the wire cutting machine, so that each structure is compact and the space utilization is reasonable.

As shown in fig. 5 to 7, fig. 5 is a schematic structural diagram of a cutting fluid circulating system in the automatic cleaning method of a cutting fluid circulating system of a wire cutting machine according to the present application; fig. 6 is a schematic diagram of a fluid path of a cutting fluid circulating system in an automatic cleaning method of the cutting fluid circulating system of the wire cutting machine according to the first embodiment of the present application; fig. 7 is a schematic diagram of a fluid path of a cutting fluid circulation system in an automatic cleaning method of the cutting fluid circulation system of the wire cutting machine according to the second embodiment of the present application.

Based on the above-mentioned filter device 50, the present application further provides a cutting fluid circulation system, which includes a spraying device 20, a collecting device 80, a cleaning power device, a liquid supply device 10 and a filter device 50. The spraying device 20 is located in a workpiece cutting area, the liquid supply device 10 is located below the workpiece cutting area, the liquid supply device 10 is provided with a collecting device, the collecting device is connected with the cutting chamber, the sprayed cutting liquid is collected and conveyed into the liquid supply device 10, and collection of the cutting liquid is achieved.

Wherein, spray set 20 includes a plurality of shower for carry out the cutting fluid to the work piece cutting area and spray. Preferably, the cutting fluid spraying device further comprises a collecting device, the collecting device is preferably located below the spraying device 20 and is used for collecting the cutting fluid after the workpiece is sprayed, the collecting device is preferably arranged above the liquid supply device 10, the cutting fluid collected by the collecting device flows into the liquid supply device 10 and is conveyed to the filtering device 50 through the liquid supply device 10 for filtering, and therefore the cutting fluid is recycled. The collecting device is preferably provided as a collecting tank or collecting funnel, generally arranged below the cutting chamber of the cutting machine, provided with a collecting channel communicating with the liquid supply device 10, enabling the delivery of the cutting liquid. Or, supply liquid device 10 including the confession liquid cylinder that is used for holding cutting fluid, supply the liquid cylinder to have cutting fluid backward flow mouth, the backward flow mouth is connected with collection device, and the cutting fluid that returns collection device flows back to supplying the liquid cylinder in, and backward flow mouth department is equipped with the rubber strip and seals, and collection device still is equipped with back liquid filter assembly simultaneously, and inside is equipped with the filter screen, filters the cutting fluid after the backward flow.

The liquid supply device 10 provides power for the cutting liquid, and circulation from the liquid supply device 10, the filtering device 50, the heat exchange device 30 and the flow meter 40 to the spraying device 20 is realized. The liquid supply device 10 can be provided as a mortar pump, and in other embodiments, corresponding power equipment can be provided according to needs.

Above-mentioned cutting fluid circulation system realizes the self-loopa of cutting fluid in the operation process, need not the manual cleaning filter screen 56 simultaneously, and whole circulation system need not to carry out the pressure release from this or other operations that need guarantee to dismantle the safety of filter screen 56, and the simplified operation flow saves the activity duration, guarantees filter screen 56 cleaning performance simultaneously, reduces the cutting consumptive material volume, improves cutting operation efficiency and improves work piece processingquality.

Before the cutting operation is finished next time, only an operator needs to send a cleaning instruction, the equipment automatically finishes cleaning of the filter cartridge without excessive intervention, the work content of the operator is simplified, the filter screen is changed from cleaning once before cutting every time to cleaning once every two weeks, and the cutting operation efficiency and the filter screen cleaning effect are guaranteed.

Specifically, the cleaning power device is communicated with the filtering device to automatically clean the filtering device. The cleaning power device is a water-air backwashing assembly, the water-air backwashing assembly 110 corresponds to the filter screen 56, and it can be understood that the water-air backwashing assembly 110 comprises a water path and a gas path, and the water path and the gas path are mixed and then input into the filter cylinder to perform water-air backwashing on the filter screen 56. It will be appreciated that in order to enhance the washing effect, the water vapor backwash assembly 110 is disposed corresponding to the filter screen 56, preferably on the outer side of the filter screen 56, and cleans the filter screen 56 from the outside to the inside. The number of the water vapor backwashing components 110 can be one or more, and the number can be set according to the requirement, and the water vapor backwashing components are within the protection scope of the application.

In one embodiment, the water vapor backwash assembly 110 includes a backwash liquid line 111 and a backwash gas line 112. Wherein, the first end of the recoil liquid pipeline 111 is used for being connected with a liquid supply source; the liquid supply source can be a water source or a cleaning liquid source. A first end of the back flush gas line 112 is adapted to be connected to a gas source.

It is understood that in other embodiments, the cleaning power unit may be an ultrasonic cleaning assembly or a pulse cleaning assembly, all within the scope of the present application.

Wherein, heat transfer device 30 is the heat exchanger, cools off cutting fluid. Flowmeter 40 is used for monitoring cutting fluid flow, and heat transfer device 30's one end is connected with filter equipment 50, and the other end is connected with flowmeter 40's input, and flowmeter 40's output is connected with spray set 20.

In one embodiment, the cutting fluid circulation system further comprises a cutting fluid input line 90, a cutting fluid output line 91, and a blowdown line 92. One end of the cutting fluid input pipeline 90 is communicated with the liquid supply device 10, and the other end is communicated with the cutting fluid inlet 57 of the filtering device 50; one end of the cutting fluid output pipeline 91 is communicated with the heat exchanging device 30, and the other end is communicated with the cutting fluid outlet 51 of the filtering device 50.

Specifically, one end of the drain line 92 is connected to the filter device 50, and the other end is connected to the liquid supply device 10 through a return line. The return pipeline is a branch pipeline on a liquid inlet pipeline of the liquid supply device 10 and is used for returning cutting liquid remained in the filtering device 50, the heat exchanger and other connecting pipelines to the liquid supply device 10 after each cutting operation is finished and discharging the cutting liquid into a trench through a water outlet of the liquid supply device 10; the liquid inlet pipeline is used for guiding the liquid collected by the collecting device into the liquid supply device in the cutting operation so as to recycle the cutting liquid.

In one embodiment, the liquid supply device 10 has a liquid supply pump and a liquid supply cylinder, and a first end of the liquid supply pump is communicated with the liquid supply cylinder; the cutting fluid circulating system further comprises a cutting fluid input pipeline, the first end of the cutting fluid input pipeline is communicated with the second end of the fluid feed pump, and the second end of the cutting fluid input pipeline is communicated with the filtering device.

In order to conduct or cut off the pipeline, a drain outlet 52 pinch valve is arranged at one end of the drain pipeline 92 close to the drain outlet 52, and a cutting fluid outlet valve 300 is arranged at one end of the cutting fluid output pipeline 91 close to the cutting fluid outlet 51.

The specific operation process is as follows: before cutting operation, such as slicing, cutting liquid is stored in the liquid supply device 10;

during slicing operation, cutting fluid enters the filter cartridge from the fluid supply device 10 through the cutting fluid inlet 57, the filter cartridge is in a state that the backflushing gas pipeline 112 is disconnected, the cutting fluid outlet 51 is opened, the sewage discharge pipeline 92 is disconnected, and the backflushing fluid pipeline 111 is disconnected; the cutting fluid flows out of a cutting fluid outlet 51 after being filtered by a filter screen 56 and enters a heat exchanger, the heat exchanger cools the cutting fluid by using factory cooling water, the cooled cutting fluid is uniformly sprayed in a workpiece cutting area through a flow meter 40 by a spray pipe and flows back to the liquid supply device 10 through the bottom of the cutting chamber, and cutting fluid circulation in the machining process is formed;

when the cutting fluid flows back after a cut, the cutting fluid outlet 51 (the cutting fluid outlet pinch valve 511) is closed, the sewage outlet 52 (the sewage outlet pinch valve 510) is opened, the cutting fluid in the heat exchange device returns to the filter cylinder, and then returns to the fluid supply cylinder from the sewage outlet 52 of the filter cylinder or the cutting fluid outlet 51 through a return pipe together with the cutting fluid retained in the filter cylinder, that is to say, the sewage discharge pipeline 92 and the cutting fluid output pipeline 91 can be communicated with the return pipe and are discharged to a trench through a water outlet of the fluid supply device 10. After slicing is completed, the filter cartridge needs to be cleaned, and the filter device 50 provided by the application does not need to take out the filter screen 56 in the filter cartridge for cleaning, opens the liquid path electromagnetic valve 700, and closes the liquid path electromagnetic valve 700 after the filter cartridge is filled with water; the solenoid valve 800 is installed with a certain frequency to introduce compressed air into the filter cartridge and last for a certain time, when the flushing flow rate is higher, the filter layer expands during the back flushing, the whole filter layer reaches a fluidized state, and the advantages of water saving (about 20-30% of water consumption reduction), energy saving, high flushing cleanliness, long filter period and the like are achieved. It is understood that the on/off of the above-mentioned pipelines can be realized by respective control valves arranged on the pipelines, and the details are not described herein.

When the wire cutting machine is in a non-cutting operation state, the blowdown pipeline 92 and the cutting fluid output pipeline 91 are controlled to be disconnected, namely the blowdown valve 400 and the cutting fluid outlet valve 300 are controlled to be disconnected; the cleaning water can not flow into the cutting fluid output pipeline 91, so that the possibility of mixing the cleaning water and spraying the cleaning water from the spraying device 20 is reduced, and the cleanliness of the cutting fluid is ensured; controlling the backflushing liquid pipeline 111 to be conducted (the liquid way electromagnetic valve 700 is conducted) until the filter cartridge of the cutting liquid circulating system is filled with the flushing liquid, and then closing the backflushing liquid pipeline 111 to ensure that the filter cartridge is filled with water during flushing; the backflush gas line 112 is controlled to open (the solenoid valve 800 is opened) to charge the filter device 50 at a preset frequency to flush the filter screen 56. The preset frequency is more than or equal to 0 and less than or equal to 5 Hz.

Referring to fig. 1-4, fig. 1 is a schematic structural diagram of a filtering device in an automatic cleaning method for a cutting fluid circulating system of a wire cutting machine according to a first embodiment of the present application; fig. 2 is a schematic structural diagram of a filtering apparatus in an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine according to a second embodiment of the present disclosure; fig. 3 is a schematic structural diagram of a filtering apparatus in an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine according to a third embodiment of the present application; fig. 4 is a schematic structural diagram of a filtering apparatus in an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine according to a fourth embodiment of the present application.

In a specific embodiment, the present application provides a filtering device 50 for filtering a cutting fluid of a wire cutting machine, wherein the filtering device 50 filters impurities such as thread ends and particles in the cutting fluid. The filter apparatus 50 includes a filter cartridge and a filter screen 56. The filter screen 56 is located in the filter cartridge, the filter cartridge is preferably a closed cavity, the filter cartridge is made of stainless steel, the filter screen 56 is preferably 50-300 meshes, and the mesh number of the filter screen 56 can be set according to the diameter of impurity particles. In order to realize the installation of the filter screen 56, the filter cartridge can be realized by arranging a cover body and the like, and the specific form of the filter cartridge can be automatically arranged according to the requirement, which is all in the protection scope of the application; in order to facilitate the assembly and disassembly, the filter cartridge includes a cartridge body 55 and a cartridge cover 54, the cartridge cover 54 is located on the top of the cartridge body 55, and the cartridge cover and the cartridge body are detachably and fixedly connected, for example, fixed by a threaded fastener and the like.

As known to those skilled in the art, in order to achieve filtration of the cutting fluid in the filter device 50, a filter screen 56 is positioned in the filter cartridge to separate the interior of the filter cartridge into two spaces, allowing the cutting fluid to flow from one space to the other after being filtered; as shown in fig. 1 and 2, the filter screen 56 in the present embodiment may be cylindrical, and the cutting fluid passes through the filter screen 56 from the inside of the filter screen 56 to be filtered; other configurations of filter screen 56 may be provided as desired. The filter screen 56 has a cutting fluid inlet 57, and the cutting fluid inlet 57 is used for connecting the filter screen 56 with the outside, it can be understood that the outside is outside the filter device 50, and when the cutting fluid inlet 57 connects the filter screen 56 with the outside, since the filter screen 56 is located in the filter cartridge, obviously, a corresponding avoiding port needs to be provided on the filter cartridge so as to connect the pipeline with the cutting fluid inlet 57.

The sewage draining pipeline 92 is provided with a sewage draining port 52, the sewage draining port 52 is connected with the filtering device 50, the sewage draining pipeline 92 is used for draining cleaning liquid and sewage in the filtering screen 56, the sewage draining port 52 is preferably communicated with the outside, the sewage and the like are drained out of the filtering device 50, and similarly, when the sewage draining port 52 is arranged on the filtering screen 56, the filtering cylinder is provided with an avoiding port for avoiding the sewage draining pipeline 92; in another embodiment, the waste outlet 52 may also be provided on the filter cartridge, and may be provided as desired.

Fig. 8 is a schematic cross-sectional view illustrating a filter cartridge in an automatic cleaning method for a cutting fluid circulation system of a wire cutting machine according to an embodiment of the present invention, as shown in fig. 8. It will be appreciated that in order to achieve the mounting of the filter screen 56 within the filter cartridge, the pressing member has elastic deformation properties, and the "pressing member" is pressed to elastically deform after the mounting of the cartridge cover 54 is completed, thereby pressing the filter screen 56. Here, the "pressing member" may not be provided, but it is necessary to ensure that the filter screen 56 is firmly fitted to the cylinder 55 and cannot be moved freely. Preferably, a set of opposing bosses 515 are provided on the inner wall of the barrel 55 for carrying the filter screen 56. The filtering net 56 is a split structure, the main part of the filtering net 56 is lapped on the boss 515, the secondary part of the filtering net 56 can be fixed with the main part through screw connection, and the diameter of the filtering net 56 can be set as required in order to prevent the filtering net 56 from moving radially in the cylinder 55. Preferably, in order to improve the sealing performance, a sealing gasket should be designed at the joint of the filter screen 56 and the cylinder 55 to increase the sealing effect and prevent the cutting fluid from mixing before and after filtering.

In order to improve the filtering effect, a filter bag can be added inside the filter screen 56 to perform double-layer filtering.

Cutting fluid outlet pipe 91 is used for discharging the cutting fluid after filtering, and cutting fluid outlet pipe 91 is provided with cutting fluid export 51, and cutting fluid export 51 can be connected with cartridge filter or filter screen 56, and when cutting fluid export 51 was connected with filter screen 56, the same mouth of dodging that is used for dodging cutting fluid outlet pipe 91 need set up on the cartridge filter. The cutting fluid outlet 51 is connected with a spray pipe of the wire cutting machine, so that after the cutting fluid is filtered by the filtering device 50, the filtered cutting fluid is transmitted to the spray pipe through the cutting fluid outlet 51 to spray the workpiece in the cutting area; it can be understood that, during the cleaning process of the filter screen 56, the cutting fluid outlet 51 or the cutting fluid output pipeline 91 is in a closed state, so as to prevent impurities and the like in the washing process from entering the spraying device 20.

Compared with the prior art, the filtering device 50 provided in the embodiment of the present application has the following technical effects:

in this application, filter screen 56 is located the cartridge filter, and filter screen 56 has cutting fluid entry 57, and filter equipment 50 has blowdown pipeline 92, cutting fluid output pipeline 91 and aqueous vapor back flush subassembly 110, and aqueous vapor back flush subassembly 110 is used for connecting outside cleaning unit, and it corresponds the setting with filter screen 56, carries out back flush aqueous vapor to filter screen 56. From this setting for above-mentioned filter equipment 50 can realize the self-cleaning to filter screen 56, need not the manual work and demolish filter screen 56 and wash, and self-cleaning guarantees filter screen 56's cleaning performance, solves the manual work and forgets the condition of washing filter screen 56 and just carrying out the cutting operation, improves cutting operating efficiency and guarantees to form the piece quality.

Specifically, one end of the sewage draining pipeline 92 is provided with a sewage draining outlet 52, the sewage draining outlet 52 is positioned at the bottom wall of the filter screen 56, and the other end of the sewage draining pipeline 92 is positioned outside the filtering device 50; so that the washing liquid is discharged, and drain 52 department is equipped with the first sealing ring that is used for being connected with the filter screen to increase the leakproofness of pipeline, prevent the problem that the washing liquid was revealed, the mode of sealing connection can set up as required, and this place is only a preferred embodiment. In this embodiment, the dirt flushed by the filter screen 56 can be discharged out of the filter screen 56 along the bottom wall of the filter screen 56, so that the smoothness of the bottom of the filter screen 56 is better ensured, and the bottom is prevented from being blocked.

It will be understood that as shown in fig. 2, the upper (top) and lower (bottom) directions are defined in the illustrated orientation, and as described herein and in the context of the same, the lid 54 is located at the top of the filter apparatus and the waste discharge outlet 52 is located at the bottom of the filter apparatus.

One end of the cutting fluid output pipeline 91 is provided with a cutting fluid outlet 51, the cutting fluid outlet 51 is positioned on the bottom wall of the filter cylinder, and the other end of the cutting fluid output pipeline 91 is positioned outside the filter device 50. A second sealing ring used for being connected with the filter cylinder is arranged at the cutting liquid outlet 51, and the cutting liquid outlet 51 is connected with the spraying device 20 through a pipeline, so that the cutting liquid is output to the spraying device 20 to spray the workpiece in the cutting area; the pipeline tightness is increased through the second sealing ring; likewise, the manner of sealing the connection may be arranged as desired, and is here merely a preferred embodiment.

In the first embodiment, the second end of the backflushing liquid pipeline 111 is communicated with the blowdown pipeline 92, and the blowdown port 52 is reused as a liquid inlet of the backflushing liquid pipeline 111, at this time, the second end of the backflushing gas pipeline 112 is communicated with the blowdown pipeline 92, and the blowdown port 52 is also reused as a gas inlet of the backflushing gas pipeline 112; when the second ends of the backflushing gas pipeline 112 and the backflushing liquid pipeline 111 are respectively communicated with the sewage discharge pipeline 92, the bottom of the filter screen 56 can be better cleaned through water vapor, the flushing effect is improved, the impurity deposition at the bottom of the filter screen 56 is reduced, and meanwhile, the cleaned impurities can be discharged along with a sewage discharge channel; in this embodiment, in order to further enhance the washing effect, a turbulence barrel 514 is further included, which is detachably and fixedly connected to the inside of the filtering net 56 for disturbing turbulence of the water-gas backwashing assembly 110. From this setting, through the second end of recoil trachea way 112 and recoil liquid pipeline 111 respectively with blowdown pipeline 92 intercommunication realize the washing of filter screen 56 bottom, strengthen the washing of filter screen 56 other parts through the bucket of streaming around, optimize the washing effect.

As shown in fig. 1, the specific operation process is as follows: based on the fact that the drain port serves as a liquid inlet of the backflushing liquid pipeline 111 and a gas inlet of the backflushing gas pipeline 112, after slicing is completed, a control valve of the backflushing liquid pipeline 111 can be opened, water is filled into the filter cylinder through the drain port, then compressed air is introduced into the filter cylinder at a certain frequency, and the liquid inlet and the gas inlet are arranged at the bottom of the filter cylinder, so that the backflushing effect of the filter device is good, and turbulence can be performed on the whole filter device to the greatest extent; the water flow and the air flow directly enter the bottom of the filter screen 56, and dirt deposited at the bottom of the filter screen is effectively washed; meanwhile, the sewage draining port is reused as the liquid inlet and the air inlet, the structure of the device is simplified, and the production and the processing are convenient.

Alternatively, the second end of the backflushing gas line 112 is communicated with the cutting liquid output line 91, and the cutting liquid outlet 51 is reused as a gas inlet of the backflushing gas line 112. The main principle of the structure is that compressed air is introduced to the outer side of the filter screen 56 through the backflushing air pipeline 112, large-range filter screen holes blocked by the filter screen 56 are flushed, the backflushing liquid pipeline 111 is connected with factory reuse water, the filter cartridge is in a full water state when flushing is guaranteed, and filtered impurities are discharged into the liquid supply cylinder through the sewage outlet 52.

As shown in fig. 2, the sewage draining outlet is used as a liquid inlet of the backflushing liquid pipeline 111, the cutting liquid outlet 51 is reused as a gas inlet of the backflushing gas pipeline 112, and the specific operation process is as follows: after slicing is completed, a control valve of the backflushing liquid pipeline 111 is opened to enable water to fill the filter cylinder through the sewage discharge port, then compressed air is introduced into the filter cylinder at a certain frequency, and the liquid inlet and the air inlet are arranged at the bottom of the filter cylinder, so that the backflushing effect of the filter device is good, and turbulence can be performed on the whole filter device to the greatest extent; the backflushing liquid pipeline 111 is connected to the filter screen 56, when flushing liquid in the backflushing liquid pipeline 111 enters the filter screen, dirt deposited on the filter screen can be flushed in advance through flushing pressure, and then the backflushing liquid pipeline 112 is matched with air flow to clean the dirt at the bottom of the filter screen.

In the second embodiment, the second end of the backflushing gas pipeline 112 is communicated with the blowdown pipeline 92, and the blowdown port 52 is reused as a gas inlet of the backflushing gas pipeline 112, at this time, the second end of the backflushing liquid pipeline 111 can be communicated with the blowdown pipeline 92 or the cutting liquid output pipeline 91, and can be set as required; in the third embodiment, the second end of the recoil liquid pipeline 111 and the second end of the recoil air pipeline 112 are respectively communicated with the cutting liquid output pipeline 91, and the cutting liquid outlet 51 is reused as a liquid inlet of the recoil liquid pipeline 111 and a gas inlet of the recoil air pipeline 112. In the above embodiment, the cleaning water and the backflushing gas enter the inside of the filter screen 56 from the bottom of the filter screen 56 during cleaning, which causes the cleaning liquid in the cylinder to be severely disturbed, and brushes the inner wall of the filter screen 56.

As shown in fig. 3, the specific operation process is as follows: after slicing is completed, a control valve of the backflushing liquid pipeline 111 is opened to enable water to fill the filter cylinder through the drain outlet, then compressed air is introduced into the filter cylinder at a certain frequency, the liquid inlet and the air inlet are arranged at the bottom of the filter cylinder, so that the backflushing effect of the filter device is good, and the whole filter device can be disturbed to the greatest extent; the cutting fluid outlet 51 is reused as a fluid inlet of the backwash fluid pipeline 111 and a gas inlet of the backwash gas pipeline 112, so that the water vapor backwash component washes dirt attached to the inner wall of the filter screen from the outer side of the filter screen, and simultaneously discharges the dirt from the sewage discharge pipeline 92 after washing, the dirt is prevented from being accumulated at the inlets of the backwash fluid pipeline 111 and the backwash gas pipeline 112, meanwhile, continuous water and gas communication of the backwash fluid pipeline 111 and the backwash gas pipeline 112 can be realized, sewage after washing flows back from the sewage discharge pipeline 92, uninterrupted operation is realized, and the washing effect is optimized.

In another embodiment, the second end of the backflushing liquid line 111 and the second end of the backflushing gas line 112 have the same backflushing port, and the backflushing port is located on the circumferential outer wall of the filter cartridge and is opposite to the outer wall of the filter screen 56. Therefore, the arrangement is convenient for the arrangement of the water-air backwashing component 110, and the backwashing connector is positioned on the circumferential outer wall of the filter cylinder to flush the filter screen 56 from outside to inside, so that the flushed sewage can be discharged through the sewage outlet 52 in the filter screen 56.

As shown in fig. 4, the specific operation process is as follows: after slicing is completed, a control valve of the backflushing liquid pipeline 111 is opened, so that water is filled in the filter cylinder through the drain outlet, and then compressed air is introduced into the filter cylinder at a certain frequency, so that turbulence can be performed on the whole filtering device to the greatest extent; the flushed sewage and dirt are not accumulated at the position of the backflushing liquid pipeline 111 to block the pipeline, so that the service life of the device is prolonged; meanwhile, continuous water and air passing of the backflushing liquid pipeline 111 and the backflushing air pipeline 112 can be realized, and the flushed sewage flows back from the sewage discharge pipeline 92, so that uninterrupted operation is realized, and the flushing effect is optimized.

On the basis of the above embodiments, the first sealing ring is positioned between the sewage draining pipeline 92 and the filter screen 56; the second sealing ring is positioned between the cutting fluid output pipeline 91 and the filter cartridge.

It is understood that, in order to make and break the pipeline, the filtering apparatus 50 further comprises a cutting fluid outlet valve 300, a blowdown valve 400, a fluid path solenoid valve 700 and a solenoid valve 800. Wherein, the cutting fluid outlet valve 300 is positioned at one end of the cutting fluid output pipeline 91 close to the cutting fluid outlet 51; a blowdown valve 400 is located between the other end of the blowdown line 92 and the water gas backwash assembly 110. The liquid path solenoid valve 700 is positioned on the backflushing liquid pipeline 111; a solenoid valve 800 is located on the back flush gas line 112. In one embodiment, the waste gate valve 400 is located downstream of the backwash liquid line 111 so as not to affect the on/off of the backwash liquid line 111 when the waste gate valve 400 closes the waste line 92; meanwhile, after the blowoff valve 400 is opened, the filth in the front end pipe can be completely discharged. The cutting fluid outlet valve 300 may be configured as a pinch valve, and the waste valve 400 may be configured as a pinch valve, and the type and model of the specific valve are not limited, which is within the scope of the present application.

In one embodiment, the filter device 50 further comprises a pressure detection assembly 70 fixed to the cylinder 55, preferably detachably connected to facilitate disassembly and assembly; the pressure detecting assembly 70 detects the pressure of the cutting fluid in the filter cartridge, so that the filtering device 50 has sufficient power to deliver the cutting fluid to the spraying device 20.

The specific cleaning steps are as follows:

the method comprises the following steps: the cutting fluid outlet valve 300 and the blowdown valve 400 are closed;

and step two: the liquid path solenoid valve 700 is opened to allow the cartridge filter to be filled with water;

③: the fluid path solenoid valve 700 is closed;

fourthly, the method comprises the following steps: the solenoid valve 800 introduces compressed air into the filter cylinder according to a certain frequency (f is more than or equal to 0 and less than or equal to 5Hz) and the duration is more than or equal to 30s and less than or equal to t and less than or equal to 10 min;

fifthly: closing the electromagnetic valve 800, opening the blow-down valve 400, and discharging the water cleaned in the filter cartridge into the liquid supply cylinder;

sixthly, the method comprises the following steps: the blowoff valve 400 is closed;

seventhly: repeating the processes from (c) to (c) for one cleaning period, wherein N is more than or equal to 1 and less than or equal to 10, and cleaning.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (20)

1. The automatic cleaning method of the cutting fluid circulating system of the wire cutting machine is characterized in that the cutting fluid circulating system comprises a filtering device and a cleaning power device, and the cleaning power device is communicated with the filtering device; the cleaning power device is a water-gas backwashing component; the automatic cleaning method comprises the following steps:

the method comprises the following steps: judging whether the wire cutting machine is in a non-cutting operation state, if so, executing the next step;

step two: and controlling the water-air backwashing component to start and cleaning the filtering device.

2. The automatic cleaning method according to claim 1, wherein the water-air backwash assembly comprises a backwash liquid pipeline and a backwash air pipeline, and the backwash liquid pipeline and the backwash air pipeline are respectively connected with the filter device;

the second step specifically comprises:

and controlling the back flushing liquid pipeline to be communicated until the filter device is filled with flushing liquid, and controlling the back flushing gas pipeline to inflate the filter device at a preset frequency so as to clean the filter device.

3. The automatic cleaning method according to claim 2, wherein the cutting fluid circulation system further comprises a blowdown line and a cutting fluid output line; the sewage discharge pipeline and the cutting fluid output pipeline are respectively communicated with the filtering device;

the step one and the step two further comprise:

and controlling the pollution discharge pipeline and the cutting fluid output pipeline to be disconnected.

4. The automatic cleaning method of claim 3, wherein the cutting fluid circulation system further comprises a fluid supply device for powering the cutting fluid; one end of the sewage discharge pipeline is communicated with the filtering device, and the other end of the sewage discharge pipeline is communicated with the liquid supply device through a return pipeline;

the method further comprises the following steps:

step three: judging whether the inflation time of the backflushing gas pipeline is greater than or equal to a preset time length, if so, executing the next step;

step four: and controlling the back flushing liquid pipeline to be disconnected and the sewage discharge pipeline to be connected, and conveying the cleaning liquid which is used for cleaning the filter screen into the liquid supply device.

5. The automated cleaning method of claim 1, further comprising:

step five: and judging whether the washing frequency is greater than or equal to a first preset frequency, if not, repeating the first step to the fourth step.

6. The automatic cleaning method according to claim 1, further comprising, between the first step and the second step:

judging whether the wire cutting machine has continuously cut for a preset number of times or not;

and if so, executing the second step.

7. The automatic cleaning method according to claim 6, wherein the predetermined number of times is 1 to 2 times.

8. The automated cleaning method of claim 1, wherein the first step further comprises:

and if the wire cutting machine is not in the non-cutting operation state, repeating the judgment of the first step.

9. The automated cleaning method according to any one of claims 1 to 8, wherein the cutting fluid circulation system further comprises:

the spraying device is provided with a plurality of spraying pipes and is used for spraying cutting fluid to the workpiece cutting area;

and the collecting device is used for collecting the cutting liquid below the spraying device, and the liquid supply device is communicated with the collecting device.

10. The automatic cleaning method according to claim 9, wherein the filter device includes a filter cartridge and a filter screen, the filter screen being located within the filter cartridge; the filter screen is provided with a cutting fluid inlet, and the filter device is provided with the sewage discharge pipeline, the cutting fluid output pipeline and the water-gas backwashing component;

the cutting fluid inlet is used for communicating the inside of the filter screen with the outside of the filter device;

the sewage discharge pipeline is used for discharging cleaning liquid and dirt inside the filter screen;

the cutting fluid output pipeline is used for discharging the filtered cutting fluid;

the water-gas backwashing component is arranged corresponding to the filter screen so as to perform water-gas backwashing on the filter screen.

11. The automatic cleaning method according to claim 10, wherein one end of the sewage draining pipeline is provided with a sewage draining outlet, the sewage draining outlet is positioned at the bottom wall of the filter screen, and the other end of the sewage draining pipeline is positioned outside the filter device;

one end of the cutting fluid output pipeline is provided with a cutting fluid outlet, the cutting fluid outlet is positioned on the bottom wall of the filter cylinder, and the other end of the cutting fluid output pipeline is positioned outside the filter device.

12. The automatic cleaning method of claim 11, wherein a first end of the backflushing fluid line is configured to be connected to a fluid supply source and a second end of the backflushing fluid line is in communication with the filter device to provide backflushing fluid to the filter device; the first end of the backflushing air pipeline is used for being connected with an air source, and the second end of the backflushing air pipeline is communicated with the filtering device so as to provide backflushing air for the filtering device.

13. The automatic cleaning method of claim 12, wherein the second end of the backflushing liquid line is in communication with the blowdown line, and the blowdown port is reused as a liquid inlet of the backflushing liquid line.

14. The automatic cleaning method according to claim 13, wherein the second end of the back flushing air line is in communication with the blowdown line, and the blowdown port is reused as an air inlet of the back flushing air line.

15. The automatic cleaning method according to claim 13, wherein a second end of the backflushing air line is in communication with the cutting fluid output line, and the cutting fluid outlet is reused as an air inlet of the backflushing air line.

16. The automatic cleaning method according to claim 12, wherein the second end of the backflushing liquid pipeline and the second end of the backflushing gas pipeline are respectively communicated with the cutting liquid output pipeline, and the cutting liquid outlet is reused as a liquid inlet of the backflushing liquid pipeline and a gas inlet of the backflushing gas pipeline.

17. The automated cleaning method of claim 14, wherein the cutting fluid circulation system further comprises:

and the turbulence barrel is detachably and fixedly connected into the filter screen and is used for performing turbulence on the water and the air of the water and air backwashing component.

18. The automatic cleaning method of claim 12, wherein the second end of the backflushing liquid line and the second end of the backflushing gas line have the same backflushing port, and the backflushing port is located on the outer circumferential wall of the filter cartridge and opposite to the outer wall of the filter screen.

19. The automatic cleaning method of claim 18, wherein one end of the blowdown line is in communication with the filter device and the other end is in communication with the liquid supply device.

20. The automatic cleaning method of claim 19, wherein the liquid supply device has a liquid supply pump and a liquid supply cylinder, and a first end of the liquid supply pump is in communication with the liquid supply cylinder;

the cutting fluid circulating system further comprises a cutting fluid input pipeline, the first end of the cutting fluid input pipeline is communicated with the second end of the fluid supply pump, and the second end of the cutting fluid input pipeline is communicated with the filtering device.

Images