CN114768351A

CN114768351A - Automatic cleaning method for cutting fluid circulating system of wire cutting machine

Info

Publication number: CN114768351A
Application number: CN202210550536.5A
Authority: CN
Inventors: 张璐; 尹燕刚; 范国强
Original assignee: Qingdao Gaoce Technology Co Ltd
Current assignee: Qingdao Gaoce Technology Co Ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-07-22

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, a cleaning power device and a cleaning pipeline, one end of the cleaning pipeline is communicated with the cleaning power device, and the other end of the cleaning pipeline is communicated with the filtering device; 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: controlling the cleaning power device to start and communicating the cleaning pipeline; step three: and controlling the cleaning power device to clean the filtering device. From this setting for filter equipment can realize the self-cleaning to the filter screen, need not the manual work and demolish 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 cutting the operation, improves cutting operating efficiency and guarantees one slice quality, can also reduce the consumptive material cost of changing the filter bag simultaneously.

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. However, when wire cutting, especially when slicing, a large amount of fine dust can be generated, and along with the continuation of the cutting process, the holes of the filter screen and the filter bag are gradually blocked, so that the filtering effect is deteriorated, the flow of the cutting liquid is reduced, the problems of wire jumping, wire breakage and the like in the slicing process are caused, and the quality of workpieces and the processing efficiency are influenced.

At present, the filter bag is replaced and the filter cartridge is cleaned manually in a mode generally adopted in the industry aiming at the problem, before cutting operation is started each time, an operator needs to disassemble the filter cartridge, take out an old filter bag and replace a new filter bag, and the filter screen needs to be taken out for manual cleaning after the wire cutting machine is accumulated to run for a certain time. 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 cutting operation is performed when people forget to clean the filter screen and the filter bag. This results in an increase in cutting consumables, a decrease in cutting work efficiency, and an influence on the cutting quality of the workpiece.

Disclosure of Invention

The embodiment of the application provides an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine, which aims to solve the problem that the existing filtering device needs to manually replace or clean a filter screen in a filter cartridge, the operation is complex and the cleaning effect influences the quality of a sheet.

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 a filtering device, a cleaning power device and a cleaning pipeline, wherein one end of the cleaning pipeline is communicated with the cleaning power device, and the other end of the cleaning pipeline is communicated with the filtering device; 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: controlling the cleaning power device to start and the cleaning pipeline to be conducted;

step three: and controlling the cleaning power device to clean 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, a cleaning power device and a cleaning pipeline, one end of the cleaning pipeline is communicated with the cleaning power device, and the other end of the cleaning pipeline is communicated with the filtering device; 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: controlling the cleaning power device to start and the cleaning pipeline to be conducted; step three: and controlling the cleaning power device to clean the filtering device at a preset pressure.

Compared with the prior art, the automatic cleaning method for the cutting fluid circulating system of the wire cutting machine has the following technical effects:

cutting fluid circulation is formed by a spraying device, a liquid supply device, a filtering device and a cleaning power device; wherein, the one end and the washing power device intercommunication of washing pipeline, the other end and filter equipment intercommunication, cutting fluid output pipeline communicates with filter equipment and spray set respectively, and the blowdown pipeline communicates with filter equipment to discharge inside cleaning fluid of filter equipment and filth. From this setting for filter equipment can realize the self-cleaning to the filter screen, need not the manual work and demolish 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 to become the piece quality, can also reduce the consumptive material cost of changing the filter bag simultaneously.

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 view illustrating a configuration of a cutting fluid circulating system in an automatic cleaning method for the cutting fluid circulating system of a wire cutting machine according to a first embodiment of the present disclosure;

fig. 2 is a schematic diagram illustrating a configuration of a cutting fluid circulating system in an automatic cleaning method for the cutting fluid circulating system of the 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 first embodiment of the present disclosure;

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 second embodiment of the present disclosure;

fig. 5 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. 6 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. 7 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 fifth embodiment of the present application;

fig. 8 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 sixth embodiment of the present application;

fig. 9 is a schematic structural diagram of a cutting fluid circulating system in an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine according to an embodiment of the present disclosure;

fig. 10 is a schematic cross-sectional view illustrating a filter cartridge in an automatic cleaning method of a cutting fluid circulation system of a wire cutting machine according to an embodiment of the present invention;

fig. 11 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 an embodiment of the present disclosure;

fig. 12 is a schematic flowchart of an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine according to an embodiment of 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 flowmeter 40, a filtering device 50, a pulse cleaning component 60, a pressure detection component 70 and a collecting device 80;

a cutting fluid outlet 51, a sewage discharge port 52, a flushing port 53, a cylinder cover 54, a cylinder body 55, a filter screen 56, a cutting fluid inlet 57, a first sealing ring 58, a second sealing ring 59, a sewage discharge port pinch valve 510, a cutting fluid outlet pinch valve 511, a flushing pipe 512, a flushing jet 513 and a boss 515;

a cleaning liquid inlet 61, an air inlet 62 and a pulse water vapor outlet 63;

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

the device comprises a cleaning valve 100, a one-way valve 200, a cutting fluid outlet valve 300, a blowdown valve 400, a high-frequency electromagnetic valve 500 and a pressure regulating valve 600;

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 in the embodiments of the present application more clearly understood, the following description of the exemplary embodiments of the present application with reference to the accompanying drawings is made in further detail, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all the embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Fig. 12 is a schematic flow chart illustrating an automatic cleaning method of a cutting fluid circulation system of a wire cutting machine according to the present invention. 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 filtering device in the cutting fluid circulating system of the wire cutting machine. The method is applicable to the cutting fluid circulation system described above in the present application, i.e., the structure of the cutting fluid circulation system mentioned here and below can be configured with reference to the cutting fluid circulation system in the above embodiment. Specifically, the cutting fluid circulating system comprises a filtering device, a cleaning power device and a cleaning pipeline, wherein one end of the cleaning pipeline is communicated with the cleaning power device, and the other end of the cleaning pipeline is communicated with the filtering device. 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 above embodiment of the present application, and is not described in detail below. As shown in fig. 12, the automatic cleaning method includes:

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

step two: controlling the cleaning power device to start and communicating the cleaning pipeline;

step three: and controlling the cleaning power device to clean the filter screen of the filter device at a preset pressure.

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, the cutting device of the linear cutting machine is in pause operation and the material feeding device performs feeding and discharging operation, and therefore the filter screen 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.

When the wire cutting machine is in a non-cutting operation state, the cleaning power device is controlled to be started and the cleaning pipeline is conducted, and it can be understood that when the cleaning valve 100 or the one-way valve 200 is arranged on the cleaning pipeline, the valve is opened to ensure the conduction of the cleaning pipeline; the cleaning power device cleans the filter screen of the filtering device with preset pressure, in this embodiment, the cleaning power device can be set as a booster pump, outputs the preset pressure to the cleaning pipeline, and directly cleans the filter screen through high-pressure water.

Specifically, the cutting fluid circulating system further comprises a spraying device and a cutting fluid output pipeline; one end of the cutting fluid output pipeline is communicated with the filtering device, and the other end of the cutting fluid output pipeline is communicated with the spraying device; a cutting fluid outlet valve 300 is arranged on the cutting fluid output pipeline;

the second step also comprises:

the cutting fluid outlet valve 300 is controlled to be closed.

Therefore, the cutting fluid outlet valve 300 is closed before cleaning, so that the cleaning water cannot flow into the cutting fluid output pipeline, the possibility of mixing the cleaning water and spraying the cleaning water from the spraying device is reduced, and the cleanliness of the cutting fluid is ensured.

In one embodiment, the cleaning power device is a pulse generator, the pulse generator has a pulse water gas outlet, a cleaning liquid inlet pipeline and an air inlet pipeline connected with an air source, the pulse water gas outlet is connected with the cleaning pipeline, and the air inlet pipeline is provided with a high-frequency electromagnetic valve 500 and a pressure regulating valve 600.

The third step is specifically as follows:

controlling the on-off of a high-frequency electromagnetic valve 500 of the cleaning power device at a preset frequency, and carrying out pulse washing on a filter screen of the filtering device at a preset pressure; specifically, water (the flow rate is more than or equal to 0.3L/min and less than or equal to Q and less than or equal to 3L/min) and compressed air (the pressure range is more than or equal to 0.1MPa and less than or equal to P and less than or equal to 1MPa) are mixed and then are injected into a filter cylinder through a pulse generator according to a certain frequency (f is more than or equal to 0 and less than or equal to 20Hz), and the effect of flushing a filter screen is achieved.

In another embodiment, the cutting fluid circulating system further comprises a blowdown pipeline 92, and a blowdown valve 400 is arranged on the blowdown pipeline 92; one end of the sewage discharge pipeline 92 is communicated with the filtering device, and the other end is communicated with the liquid supply device;

the method further comprises the following steps:

step four: the blowdown valve 400 is controlled to open, discharging the cleaning liquid and dirt inside the filtering device to the liquid supply device. In this embodiment, it can be understood that the second step further includes controlling the blowoff valve 400 to close, during the pulse cleaning process, the blowoff valve 400 is closed, and the cleaning liquid and the like are preferentially stored in the filter cartridge, so as to soak the dirt and the like on the filter screen to a certain extent, thereby facilitating the subsequent high-pressure cleaning and further improving the cleaning effect; after the cleaning is completed, the soil discharge valve 400 is opened to uniformly discharge the soil.

Or, the second step further comprises controlling the blowoff valve 400 to be opened, wherein in the pulse cleaning process, the blowoff valve 400 is in an open state, so that the cleaning solution can be discharged from the filter cartridge in time; it is within the scope of the present application to configure the drain valve 400 in a cleaning process as desired.

Further, the method further comprises:

step five: judging whether the flushing time is greater than or equal to a first preset flushing time, if so, controlling the cleaning power device to be closed and the cleaning pipeline to be disconnected; if not, repeating the second step to the fourth step. The first preset flushing time period is preferably 2-30 minutes.

In one embodiment, the method further comprises:

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 performed, otherwise, the operation state of the wire cutting machine is judged again.

In one embodiment, when the cleaning power device is a pulse cleaning assembly, the third step specifically includes:

the pressure regulating valve 600 is controlled to a predetermined pressure to clean the filter net of the filtering apparatus.

In another embodiment, the cleaning power plant is a booster pump;

the third step specifically comprises:

and controlling the booster pump to start, and outputting preset pressure to the cleaning pipeline so as to clean the filter screen of the filter device. Therefore, the filter screen is cleaned by keeping the preset pressure.

Wherein, still include between step one and step two:

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

if yes, executing the second step, wherein the preset times are 1-2 times. Specifically, preferably 1 time, after the cutting device of the wire cutting machine cuts the material at each time, the filter screen is washed, and because the cutting device stops cutting at present, the spraying device does not need to spray the cutting fluid, and then does not need to filter the cutting fluid. 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.

Wherein, wash power device and wash the subassembly for the pulse, specific operation process is:

the filter cartridge is connected with a pulse generator, water (the flow rate is more than or equal to 0.3L/min and less than or equal to Q and less than or equal to 3L/min) and compressed air (the pressure range is more than or equal to 0.1MPa and less than or equal to P and less than or equal to 1MPa) are mixed and then are injected into the filter cartridge through the pulse generator according to a certain frequency (f is more than or equal to 0 and less than or equal to 20Hz), and the effect of washing the filter screen is achieved.

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 the cleaning valve 100 is opened;

secondly, the step of: the pressure regulating valve 600 is regulated to the required cleaning pressure (0.1 MPa-1 MPa, and can be kept unchanged after regulation), and the high-frequency electromagnetic valve 500 is controlled to be switched on and off according to specific frequency (f is more than or equal to 0 and less than 20Hz) to form a pulse scouring filter cartridge;

③: the blow-down valve 400 is opened to discharge the water cleaned in the filter cartridge into the liquid supply tank;

fourthly, the preparation method comprises the following steps: the blowdown valve 400 is closed;

fifth, the fifth step: repeating the steps from (two to (four) for a cleaning cycle for multiple times, wherein t is more than or equal to 2 and less than or equal to 30min for total washing time;

sixthly, the method comprises the following steps: the purge valve 100 is closed and the purge is complete.

In another embodiment, when the power cleaning device is a booster pump, the second step may be replaced by: the booster pump works, flushing water with set pressure (P is more than or equal to 0.1MPa and less than or equal to 3MPa) is output, the filter cartridge is flushed, and t is more than or equal to 1min and less than or equal to 20 min; the other steps are unchanged.

It is understood that in other embodiments, the cleaning power device may also be an ultrasonic wave washing assembly or a water-gas backwashing assembly, all within the scope of the present application; correspondingly, the automatic cleaning method can also be applied to the cleaning power device which is an ultrasonic washing component or a water-gas back washing component.

In a specific embodiment, as shown in fig. 11, fig. 11 is a schematic structural diagram of the wire cutting machine provided in 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; the cutting area assembly 1008 comprises a lathe bed assembly 1006, a spindle assembly 1005, a four-column feeding swing mechanism 1007 and a cutting area 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 take-up, pay-off, lay-out and tension control areas for 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 specific 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 a master control device of the operation master control room so as to realize real-time monitoring, data uploading and other operations of 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 lathe bed component 1006 is used as a bearing part 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, the cutting area frame is provided with a cutting area shield assembly 1009, a cutting area assembly 1008, a four-column feeding swing mechanism 1007, a main shaft assembly 1005, a liquid supply assembly and a lathe bed assembly 1006 in sequence from top to bottom. The arrangement mode optimizes the installation space of the wire cutting machine, so that each structure is compact and the space utilization is reasonable.

Referring to fig. 1, 2 and 9, fig. 1 is a schematic diagram illustrating a cutting fluid circulating system of a wire cutting machine according to a first embodiment of the present disclosure; fig. 2 is a schematic diagram illustrating a configuration of a cutting fluid circulating system in an automatic cleaning method for the cutting fluid circulating system of the wire cutting machine according to a second embodiment of the present disclosure; fig. 9 is a schematic structural diagram of a cutting fluid circulating system in an automatic cleaning method of a cutting fluid circulating system of a wire cutting machine according to the present application.

In a first embodiment, the cutting fluid circulating system in the automatic cleaning method of the cutting fluid circulating system of the wire cutting machine provided by the application comprises a spraying device 20, a liquid supply device 10, a filtering device 50 and a cleaning power device. Meanwhile, the spraying device 20 is located in the workpiece cutting area, the liquid supply device 10 is located below the workpiece cutting area, a collecting device is arranged on the liquid supply device 10 and connected with the cutting chamber, the sprayed cutting liquid is collected and conveyed to 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 gutter 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 the 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, it is sealed that backward flow mouth department is equipped with the rubber strip, and collection device still is equipped with back liquid filtering component 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 may be provided as a mortar pump, and in other embodiments, a corresponding power device may be provided as needed.

The system also includes a purge line, a cutting fluid output line, and a blowdown line 92. Wherein one end of the cleaning pipeline is communicated with the cleaning power device, and the other end is communicated with the filtering device 50, thereby automatically cleaning the filtering device. Preferably, a cleaning valve and a one-way valve can be arranged on the cleaning pipeline to realize the on-off of the pipeline. One end of the cutting fluid output pipeline is communicated with the filtering device 50, and the other end of the cutting fluid output pipeline is communicated with the spraying device 20, so that the workpiece in the cutting area can be sprayed; and a cutting fluid outlet valve is arranged on the cutting fluid output pipeline to realize the on-off of the pipeline. It is understood that the above system further includes a cutting fluid input pipeline, one end of the cutting fluid input pipeline is communicated with the fluid supply device 10, the other end of the cutting fluid input pipeline is communicated with the filtering device 50, the cutting fluid sprayed on the workpiece is collected by the collecting device, and is recycled to the fluid supply device 10, and is pumped into the filtering device 50 through the fluid supply device 10 for filtering. The drain line 92 is used to discharge the cleaning liquid and filth inside the filtering apparatus 50; one end of the drain line 92 is communicated with the filtering device 50, wherein a drain valve is provided on the drain line 92 in order to open or close the line.

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

Before the cutting operation is finished for the next time, only an operator needs to send a cleaning instruction or judge to accord with the cleaning condition after the cutting operation is finished according to a preset program, 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 at every time to cleaning once every two weeks, and the cutting operation efficiency and the filter screen cleaning effect are ensured.

Wherein, the heat exchanging device 30 is a heat exchanger for cooling the 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.

Specifically, wash power device is impulse generator, and impulse generator has pulse vapor outlet, washing liquid feed liquor pipeline and the air inlet pipeline of being connected with the air supply, and pulse vapor outlet is connected with the washing pipeline to carry the washing liquid to washing interface, wash the filter screen, have high frequency solenoid valve 500 and air-vent valve 600 on the air inlet pipeline. The specific operation process is as follows: controlling the on-off of a high-frequency electromagnetic valve 500 of the cleaning power device at a preset frequency, and carrying out pulse washing on a filter screen of the filtering device at a preset pressure; specifically, water (the flow rate is more than or equal to 0.3L/min and less than or equal to Q and less than or equal to 3L/min) and compressed air (the pressure range is more than or equal to 0.1MPa and less than or equal to P and less than or equal to 1MPa) are mixed and then are injected into a filter cylinder through a pulse generator according to a certain frequency (f is more than or equal to 0 and less than or equal to 20Hz), and the effect of flushing a filter screen is achieved. It is understood that the cleaning liquid may be pure water, or other liquid, and may be set as desired. In order to control the on-off of the pipeline, a control valve and a pressure regulating valve are arranged on the air inlet pipeline, and the control valve is a high-frequency electromagnetic valve.

In another embodiment, the cleaning power device comprises a booster pump and a cleaning liquid inlet pipeline connected with the booster pump. In this embodiment, the cleaning liquid inlet pipeline may be directly connected to a water source, and the cleaning liquid inlet pipeline is pressurized by the booster pump, so that the cleaning liquid entering the filtering device 50 has a certain pressure to directly clean the filter screen.

Specifically, one end of the blowdown line 92 is communicated with the filtering device 50, and the other end is communicated with 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 supply pump, and the second end of the cutting fluid input pipeline is communicated with the filtering device.

In one embodiment, one end of the heat exchange device 30 is communicated with the cutting fluid output pipeline, and the other end is communicated with the spraying device 20; the cutting fluid outlet valve is positioned between the filtering device 50 and the heat exchange device 30.

Example one

As shown in fig. 3 to 4, 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 first 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 second embodiment of the present disclosure; on the basis of the above embodiments, the filtering device of the cutting fluid circulating system of the present application includes a filter cartridge and a filter screen, wherein the filter screen is located in the filter cartridge; the filter screen is provided with a cutting fluid inlet and a sewage outlet; the filter cartridge is provided with a cutting fluid outlet and a flushing interface; the cutting fluid inlet is communicated with the fluid supply device; the sewage draining port is used for draining cleaning liquid and sewage in the filter screen and is communicated with a sewage draining pipeline 92; the cutting fluid outlet is communicated with a cutting fluid output pipeline; the washing interface is communicated with the washing pipeline and is arranged corresponding to the position of the filter screen so as to wash the filter screen.

The filtering device 50 is used for filtering cutting fluid of the wire cutting machine, and the filtering device 50 is used for filtering impurities such as thread ends, particles and the like 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; as known to those skilled in the art, in order to realize the filtration of the cutting fluid in the filtering apparatus, a filter screen is positioned in the filter cartridge to separate two spaces in the filter cartridge, and allow the cutting fluid to flow from one space to the other space after being filtered; as shown in fig. 2 and 3, the filter screen 56 in the present embodiment may be cylindrical, and the cutting fluid passes through the filter screen 56 to be filtered; the filter screen can be set into other structural forms according to the requirement. The filter screen 56 is provided with a cutting fluid inlet 57 and a sewage discharge outlet 52, the cutting fluid inlet 57 is used for communicating 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 is communicated with the filter screen 56 and the outside, since the filter screen 56 is positioned in the filter cartridge, obviously, a corresponding avoiding opening needs to be arranged on the filter cartridge so as to facilitate the connection of the pipeline and the cutting fluid inlet 57; the drain outlet 52 discharges the cleaning liquid and contaminants inside the filtering mesh 56, and the drain outlet 52 is preferably communicated with the outside to discharge the contaminants, etc. outside the filtering apparatus 50. Likewise, the filter cartridge is provided with an escape opening for escaping the waste line 92 connected to the waste outlet 52. The filter cartridge has a cutting fluid outlet 51 and a flush port 53.

Fig. 10 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. 10. It will be appreciated that, in order to achieve the installation of the filter screen 56 in the filter cartridge, the pressing member has elastic deformation performance, and the "pressing member" is pressed to elastically deform after the cartridge cover 54 is installed, so as to press 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 filter screen 56 is a split structure, the main part of the filter screen 56 is lapped on the boss 515, the secondary part of the filter screen 56 can be fixed with the main part through threaded connection and the like, and meanwhile, in order to prevent the filter screen 56 from moving radially in the cylinder 55, the diameter of the filter screen 56 can be set as required. 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.

The filter cartridge has a cutting fluid outlet 51 and a flush port 53. 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 a 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. The flush port 53 is adapted to be connected to an external cleaning unit, such as a water source or other cleaning fluid powered device, which provides pressure to the cleaning fluid to be sprayed through the flush port 53 to maintain a certain pressure to clean the filter screen 56. It can be understood that, in order to improve the washing effect and ensure the washing surface of the filter screen 56 as much as possible, the washing port 53 is disposed corresponding to the filter screen 56, and is preferably disposed outside the filter screen 56, the washing port 53 is disposed outside the filter screen 56 to wash the filter screen 56 from outside to inside, and further, the washing port 53 is preferably disposed right above the filter screen 56 to wash the filter screen 56 uniformly. In one embodiment, the number of the flushing ports 53 may be one or more, and the number thereof may be set as required, all within the scope of the present application.

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 filter cartridge, and filter screen 56 has cutting fluid inlet 57 and drain 52, and the filter cartridge has cutting fluid export 51 and washes interface 53, and wherein wash interface 53 and connect outside cleaning unit to set up relatively with filter screen 56, in order to be able to wash filter screen 56. From this setting, through the setting that washes interface 53 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 the cleaning performance of filter screen, solves the manual work and forgets the condition of washing just cutting the operation, improves cutting operating efficiency and guarantees one slice quality.

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.

In one embodiment, the flush port 53 is located at the center of the cartridge cover 54, above the outside of the filter screen 56. From this setting to in the outside of filter screen 56, wash filter screen 56 from outside to inside for impurity etc. of adhesion on the inner wall of filter screen 56 can be after washing the bottom that drops at filter screen 56, and along with the flush liquid flows out filter screen 56 from drain 52, discharge filter equipment 50 is outer. Specifically, the cleaning power device is a pulse generator, the pulse generator has a pulse water-gas outlet, a cleaning liquid inlet pipeline and an air inlet pipeline connected with an air source, the pulse water-gas outlet is connected with the cleaning pipeline to convey the cleaning liquid to the flushing interface 53, and the air inlet pipeline is provided with a high-frequency electromagnetic valve 500 and a pressure regulating valve 600. The specific operation process is as follows: controlling the on-off of a high-frequency electromagnetic valve 500 of the cleaning power device at a preset frequency, and carrying out pulse washing on a filter screen of the filtering device at a preset pressure; specifically, water (the flow rate is more than or equal to 0.3L/min and less than or equal to Q and less than or equal to 3L/min) and compressed air (the pressure range is more than or equal to 0.1MPa and less than or equal to P and less than or equal to 1MPa) are mixed and then are injected into a filter cylinder through a pulse generator according to a certain frequency (f is more than or equal to 0 and less than or equal to 20Hz), and the effect of flushing a filter screen is achieved.

Further, there are a plurality of flushing interfaces 53, and each flushing interface 53 is uniformly distributed on the cartridge cover 54, preferably three flushing interfaces are provided at the center of the cartridge cover 54, and in other embodiments, the flushing interfaces can be provided as needed. In order to increase the flushing pressure and further improve the flushing effect, the flushing device also comprises a flushing nozzle which is detachably connected to the flushing interface.

In another embodiment, the flush ports 53 are uniformly disposed along the circumferential outer wall of the barrel 55, and are uniformly disposed along the length of the barrel 55. It will be appreciated that the flush port 53 in this embodiment is preferably disposed on the outside of the filter screen 56, and the filter screen 56 is flushed from outside to inside on the outside of the filter screen 56, so that impurities hanging on the inner wall of the filter screen 56 fall into the filter screen 56, and are conveniently discharged from the drain opening 52 with the flushing liquid during the flushing process. The arrangement mode increases the washing points of the filter screen 56, and further optimizes the washing effect. In other embodiments, the flush port 53 may be disposed at the center of the cover 54 and on the circumferential outer wall of the barrel 55, respectively, and are within the scope of the present application.

Specifically, the sewage draining outlet 52 is located at the bottom of the filter screen 56 so as to facilitate the drainage of the cleaning solution, and the first sealing ring 58 for connecting with the sewage draining pipeline 92 is arranged at the sewage draining outlet 52 so as to increase the sealing performance at the sewage draining outlet and prevent the leakage of the cleaning solution; the manner of sealing the connection may be set as desired, including but not limited to interference fit of the drain with the drain line 92. It will be appreciated that the upper (top) and lower (bottom) orientations are defined in the illustrated orientation as shown in figure 3, and as described herein and in the context of that orientation, the flush port 53 is located at the top of the filter apparatus and the waste outlet 52 is located at the bottom of the filter apparatus.

The cutting fluid outlet 51 is positioned at the bottom of the cylinder 55, and a second sealing ring 59 for connecting with a pipeline is arranged at the cutting fluid outlet 51. The cutting fluid outlet 51 is connected with the spraying device 20 through a pipeline, so that the cutting fluid is output to the spraying device 20 to spray the workpiece in the cutting area; pipeline tightness is increased through a second sealing ring 59; likewise, the manner of sealing the connection may be arranged as desired, and is here merely a preferred embodiment.

On the basis of the above embodiments, the cleaning power device is a pulse cleaning assembly 60, which has a pulse water vapor outlet 63, a cleaning liquid inlet 61 and an air inlet 62 connected with an air source; the cleaning liquid inlet 61 is connected with a cleaning liquid source to supply cleaning liquid to the filtering device 50, and the pulse water-air outlet 63 is connected with the flushing interface 53 to convey the cleaning liquid to the flushing interface 53 to flush the filter screen 56. It is understood that the cleaning liquid may be pure water, or other liquid, and may be set as desired.

In one embodiment, the flushing interface 53 is positioned on the cylinder cover 54, the number of the flushing interfaces 53 can be one or more, the flushing interface 53 is connected with the pulse cleaning assembly 60, the sewage outlet 52 and the cutting fluid outlet 51 are positioned at the bottom of the filter cylinder, wherein the sewage outlet 52 is communicated with the filter screen 56, the sewage outlet 52 and the filter screen are sealed by adopting a sealing ring, and the rear end of the sewage outlet 52 is connected with a sewage outlet pinch valve 510 for controlling the opening and closing of the sewage outlet; the rear end of the cutting fluid outlet 51 is connected with a cutting fluid outlet pinch valve 511, which ensures that the pipeline filter cartridge of the cutting fluid outlet 51 is in a blocking state during cleaning. The bottom of the filter screen 56 is provided with a sewage draining port 52, and a second sealing ring 59 is arranged on the filter screen and is in sealing connection with the sewage draining port 52, so that filtered impurities and thread ends can be discharged from the sewage draining port 52, and the mixing of water before and after filtering is effectively avoided.

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

during slicing operation, cutting fluid enters the filter screen 56 from the fluid supply device 10 through the cutting fluid inlet 57, and at the moment, the filter cartridge is in a state that the flushing interface 53 is closed, the cutting fluid outlet 51 is opened (the cutting fluid outlet pinch valve 511 is opened), and the sewage outlet 52 is closed (the sewage outlet pinch valve 510 is closed); 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 adopting factory cooling water, the cooled cutting fluid is uniformly sprayed in a workpiece cutting area through a flowmeter 40 and a spray pipe, and flows back to the liquid supply device 10 through the bottom of the cutting chamber to form cutting fluid circulation in the machining process;

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 the slicing operation, the filter cartridge needs to be cleaned, the filter device 50 is a disassembly-free cleaning structure, the filter screen 56 in the filter cartridge does not need to be taken out for cleaning, only the flushing port 53 needs to be opened, meanwhile, the pulse water vapor outlet 63 of the pulse cleaning component 60, the cleaning liquid inlet 61 and the air inlet 62 connected with an air source are opened, the compressed air of the air inlet 62 is used as a power source, the cleaning liquid entering from the cleaning liquid inlet 61 is used as a cleaning medium, the air flow sent out by the air compressor and the cleaning liquid form pulse and high-speed oscillating air flow waves through the pulse generator, the pulse continues to be transmitted along with the water air flow waves, so that high-speed water vapor vortex and high-pressure micro-bubbles are formed in the filter cartridge, the bubbles expand and burst after colliding with the wall, so that the dirt is broken and fall off, as shown in fig. 3, the flushing port 53 is positioned on the cartridge cover 54, and the pulse water vapor mixture washes the filter screen 56 from the upper side to the lower side of the filtering screen 53, under pulse pressure and gravity combined action, can wash the dirt that adheres to on the inner wall of filter screen 56 and fall, the dirt of whereabouts is discharged to the filter equipment outside from the drain 52 that is located the filter screen bottom along rivers for the inside dirt of filter screen 56 can not persist, under the combined action of pulse cleaning assembly and drain 52, accomplishes the washing to filter screen 56.

In fig. 4, the flushing port is arranged along the circumferential outer wall of the cylinder, and the filter screen 56 is flushed from outside to inside on the outer side of the filter screen, so that the flushing range is wider, and dirt attached to the circumferential inner wall of the filter screen 56 can be flushed away; similarly, the fallen dirt is discharged to the outside of the filtering apparatus from the sewage outlet 52 at the bottom of the filtering net along the water flow, so that the dirt inside the filtering net 56 is not remained, and the filtering net 56 is cleaned under the combined action of the pulse cleaning assembly and the sewage outlet 52.

Example two

As shown in fig. 5 to 6, fig. 5 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. 6 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;

in addition to the above embodiments, the filter device 50 of the present application is used for filtering the cutting fluid of the wire cutting machine, and the filter 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. Wherein, the filter screen 56 is located the cartridge filter, and the cartridge filter is preferred airtight cavity, and in order to realize the installation to filter screen 56, the cartridge filter can set up lid etc. and realize, can set up the concrete form of cartridge filter by oneself as required, all in the protective scope of this application; as known to those skilled in the art, in order to realize the filtration of the cutting fluid in the filtering device, a filter screen is positioned in the filter cartridge to separate the interior of the filter cartridge into two spaces, and the cutting fluid is allowed to flow from one space to the other space after being filtered; as shown in fig. 2 and 3, the filter screen 56 in the present embodiment may be cylindrical, and the cutting fluid passes through the filter screen 56 to be filtered; the filter screen can be arranged into other structural forms according to the requirement. The filter screen 56 has a cutting fluid inlet 57, the cutting fluid inlet 57 is used for communicating the filter screen 56 with the outside, and the lower part of the filter screen 56 has no opening, and can be a stainless steel filter screen or a filter bag. It will be appreciated that the environment is external to the filter apparatus 50, and that where the cutting fluid inlet 57 communicates between the filter screen 56 and the environment, since the filter screen 56 is located within the filter cartridge, it will be apparent that a corresponding relief port is required in the filter cartridge to facilitate connection of the conduit to the cutting fluid inlet 57. The cartridge has a flush tube 512, which is preferably removably attached for easy removal. One end of the washing pipe 512 is connected to an external washing unit, such as a water source or other washing liquid power equipment, and the external washing unit provides pressure for the washing liquid to be sprayed out through the washing port 53, so as to maintain a certain pressure to wash the filter screen 56. The other end of flushing pipe 512 extends to the inside of filter screen 56, washs the impurity on the lateral wall of filter screen 56 from inside, in view of the filtering action of filter screen 56, and most impurity hangs on the inner wall of filter screen 56, and flushing pipe 512 washs it in the inside of filter screen 56, can direct action on the inner wall, improves the washing effect. It will be appreciated that in order to provide access to the washout tube 512, the filter screen 56 is provided with access openings. Specifically, the washing tube 512 is located at the top of the filter cartridge and extends from top to bottom.

In this embodiment the bottom of the filter device 50 is provided with a cutting fluid outlet 51 and a waste outlet 52. The cutting fluid outlet 51 is used for discharging filtered cutting fluid, and 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, and a workpiece in a cutting area is sprayed; 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. The drain outlet 52 is used to discharge the washing liquid and the filth inside the filtering device 50, and the drain outlet 52 is preferably communicated with the outside to discharge the filth, etc. outside the filtering device 50.

in the present application, the filter screen 56 is located in a filter cartridge, the filter screen 56 has a cutting fluid inlet 57, the filter cartridge has a flushing pipe 512, the bottom of the filter device 50 is provided with a cutting fluid outlet 51 and a sewage outlet 52, wherein one end of the flushing pipe 512 is used for connecting an external cleaning unit, and the other end extends to the inside of the filter screen 56; the flushing pipe 512 is provided with a flushing jet 513 to flush the filter screen 56. From this setting, through the setting of washing interface 53 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 wasing filter screen 56 and just carrying out the cutting operation, improves cutting operating efficiency and guarantees one slice quality.

In order to further improve the washing effect of the filter screen 56, the number of the washing jet ports 513 is several, and the washing jet ports 513 are uniformly arranged in the circumferential direction of the washing pipe 512 and are uniformly distributed along the axial direction of the washing pipe 512. In one embodiment, each set of the flushing jet ports 513 is arranged 4 times in the circumferential direction of the flushing pipe 512, and a total of 4 sets of 16 flushing jet ports 513 are arranged in the axial direction of the flushing pipe 512. In other embodiments, it is within the scope of the present disclosure to provide as many flushing jets 513 as desired. By the arrangement mode, the washing area of the filter screen 56 which can be washed by the washing pipe 512 is increased, and the washing effect is improved.

It will be appreciated that in order to increase the flushing pressure and further enhance the flushing effect, it also includes a flushing nozzle which is removably connected to the flushing jets 513.

Specifically, the sewage draining outlet 52 is located at the bottom of the filter screen 56 so as to facilitate the drainage of the cleaning solution, and the first sealing ring 58 for connecting with the sewage draining pipeline 92 is arranged at the sewage draining outlet 52 so as to increase the sealing performance at the sewage draining outlet and prevent the leakage of the cleaning solution; the manner of sealing the connection may be arranged as desired and is here only one preferred embodiment.

The cutting fluid outlet 51 is positioned at the bottom of the cylinder 55, and a second sealing ring 59 for connecting with a cutting fluid output pipeline 91 is arranged at the cutting fluid outlet 51. The cutting fluid outlet 51 is connected with the spraying device 20 through a pipeline, so that the cutting fluid 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 59; likewise, the manner of sealing the connection may be arranged as desired, and is here merely a preferred embodiment. The arrangement mode can ensure that the filtered impurities and thread ends are discharged from the sewage discharge outlet 52, and effectively avoids the mixing of water before and after filtering.

In another embodiment, the drainage outlet 52 and the cutting fluid outlet 51 are the same outlet at the bottom of the filter cartridge, and a main fluid outlet is connected to the outlets and is respectively communicated with the drainage pipeline 92 and the cutting fluid outlet 91. It will be appreciated that, in order to improve the sealing performance, the main liquid outlet pipe and the filter cartridge are preferably integrally arranged, so that no additional sealing ring or other sealing means is required; simultaneously, the mode that sets up of same export for the impurity of filter cartridge bottom also can be taken away the discharge, further improves cleanliness factor and the flow from cutting fluid output pipeline 91 exhaust cutting fluid, prevents to influence because of cutting fluid impurity influences arouses the problem such as wire jumper, broken string among the slicing process, influences into piece quality and machining efficiency.

On the basis of the above embodiments, in order to facilitate the disassembly and assembly, the filter cartridge includes a cylinder body 55 and a cylinder cover 54, the cylinder cover 54 is located on the top of the cylinder body 55, and the two are detachably and fixedly connected, for example, by a threaded fastener or the like.

The center of the cylinder cover 54 is provided with a flushing port 53, one end of the flushing port 53 is used for connecting an external cleaning unit, and the other end of the flushing port 53 is communicated with a flushing pipe 512. The flushing port 53 and the flushing pipe 512 are arranged at the center of the cylinder cover 54, so that the flushing effect of the flushing pipe 512 on the inner walls of the two sides of the filter screen 56 is uniform, and the flushing effect is improved.

Furthermore, the washing device further comprises a washing pipe power assembly which is connected with the washing pipe 512 to drive the washing pipe 512 to rotate around the axis of the washing pipe 512, so that the fixed-point washing of the washing pipe 512 is converted into the moving-point washing, the washing area of the filter screen 56 which can be washed is enlarged, the washing dead angle of the filter screen 56 is reduced, and the washing effect is improved. In one embodiment, the flushing pipe power assembly may be configured as a rotary motor fixed to the cover 54, and the output end of the motor is connected to the flushing pipe 512 to rotate the flushing pipe 512.

The specific operation process is as follows: after the slicing operation, the filter cartridge needs to be cleaned, the filter device 50 is a disassembly-free cleaning structure, the filter screen 56 in the filter cartridge does not need to be taken out for cleaning, only the flushing port 53 needs to be opened, meanwhile, the pulse water vapor outlet 63 of the pulse cleaning component 60, the cleaning liquid inlet 61 and the air inlet 62 connected with an air source are opened, the compressed air of the air inlet 62 is used as a power source, the cleaning liquid entering from the cleaning liquid inlet 61 is used as a cleaning medium, the air flow sent out by the air compressor and the cleaning liquid form pulse and high-speed oscillating air flow waves through the pulse generator, the pulse continues to be transmitted along with the water air flow waves, so that high-speed water vapor vortex and high-pressure micro-bubbles are formed in the filter screen, the bubbles expand and burst after colliding with the wall, so that the dirt is broken and falls off, as shown in fig. 5, the flushing port 53 is positioned on the cartridge cover 54, the flushing port 53 is connected with the flushing pipe 512, and the flushing pipe 512 extends into the filter screen 56, from inside to outside wash filter screen 56's inner wall, based on the mode of setting of flushing pipe 512, make it can be at the inside direct action of filter screen 56 inner wall dirt, washing pressure can not disperse because of blockking of filter screen wall, rivers are more concentrated, and wash the jet 513 through a plurality of and realize washing filter screen 56 in filter screen 56's inside each direction, the dirt of whereabouts is discharged to the filter equipment outside along rivers from the drain 52 that is located the filter screen bottom, make the inside dirt of filter screen 56 can not persist, under the combined action of pulse cleaning subassembly and drain 52, accomplish the washing to filter screen 56.

And in fig. 5, based on the setting mode that the flushing pipe 512 stretches into to filter screen 56 inside, the washing rivers of flushing pipe 512 can be at the inside direct action of filter screen 56 inner wall dirt, washing pressure can not be because of blockking of filter screen wall and disperse, rivers are more concentrated, theoretically, the dirt diameter after the breakage is more tiny, the dirt can pass through the filter screen, deposit on the diapire of barrel 55, and discharge to filter equipment's outside from the drain on barrel 55, above-mentioned setting mode makes cutting fluid export 51 and drain 52 set up more simply, only need set up on barrel 55, convenient production and processing.

EXAMPLE III

Fig. 7 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 fifth embodiment of the present application; fig. 8 is a schematic structural diagram of a filtering apparatus in an automatic cleaning method for a cutting fluid circulation system of a wire cutting machine according to a sixth embodiment of the present application.

On the basis of any one of the above embodiments, the filtering device of the present application includes a filtering device 50 for filtering the cutting fluid of the wire cutting machine, and 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. Wherein, the filter screen 56 is located the cartridge filter, and the cartridge filter is preferred airtight cavity, and in order to realize the installation to filter screen 56, the cartridge filter can set up lid etc. and realize, can set up the concrete form of cartridge filter by oneself as required, all in the protective scope of this application; as known to those skilled in the art, in order to realize the filtration of the cutting fluid in the filtering apparatus, a filter screen is positioned in the filter cartridge to separate two spaces in the filter cartridge, and allow the cutting fluid to flow from one space to the other space after being filtered; as shown in fig. 2 and 3, the filter screen 56 in this embodiment may be cylindrical, and the cutting fluid passes through the filter screen 56 to be filtered; the filter screen can be set into other structural forms according to the requirement.

The filter screen 56 has a cutting fluid inlet 57, and the cutting fluid inlet 57 is used for communicating 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 communicates the filter screen 56 with the outside, since the filter screen 56 is located in the filter cartridge, obviously, a corresponding avoiding opening needs to be arranged on the filter cartridge so as to connect the pipeline with the cutting fluid inlet 57. In order to improve the filtering effect, a filter bag can be added inside the filter screen 56 to perform double-layer filtering.

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. The rinse interface 53 is used to connect an external cleaning unit, such as a water source or other cleaning fluid power equipment, which provides pressure to the cleaning fluid to be sprayed through the rinse interface 53 to maintain a certain pressure to clean the filter screen 56. It can be understood that, in order to improve the washing effect and ensure the washing surface of the filter screen 56 as much as possible, the washing port 53 is disposed corresponding to the filter screen 56, and is preferably disposed outside the filter screen 56, the washing port 53 is disposed outside the filter screen 56 to wash the filter screen 56 from outside to inside, and further, the washing port 53 is preferably disposed right above the filter screen 56 to wash the filter screen 56 uniformly. In one embodiment, the number of the flushing ports 53 may be one or more, and the number thereof may be set as required and is within the protection scope of the present application.

The drain 52 discharges the cleaning liquid and the filth inside the filter screen 56 for discharging the cleaning liquid and the filth inside the filtering device 50, and based on the drain 52 being disposed on the filter cartridge, when it is disposed on the bottom of the filter cartridge, the impurities leaked through the filter screen 56 in the filter cartridge can also be discharged out of the filter cartridge along with the washing liquid, preventing the impurities deposited at the bottom of the filter cartridge from entering the next cycle along with the cutting liquid outlet 51.

in the present application, the filter screen 56 has a cutting fluid inlet 57, and the filter cartridges have a cutting fluid outlet 51, a sewage drain 52 and a flushing port 53, respectively; the washing port 53 is connected to an external washing unit, and is disposed corresponding to the filter screen 56 to wash the filter screen 56. From this setting, through the setting that washes interface 53 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 the cleaning performance of filter screen, solves the manual work and forgets the condition of wasing filter screen 56 and just carrying out the cutting operation, improves cutting work efficiency and guarantees to form the piece quality.

In one embodiment, the cutting fluid outlet 51 and the sewage outlet 52 are the same outlet, and a main fluid outlet is connected to the outlet, and one end of the main fluid outlet is communicated with the outlet, and the other end of the main fluid outlet is respectively communicated with a sewage discharge pipeline 92 and a cutting fluid output pipeline 91. It is understood that, in order to improve the sealing performance, the main liquid outlet pipeline and the filter cylinder are preferably integrally arranged, so that no additional sealing ring or other sealing modes are required; simultaneously, the mode that sets up of same export for the impurity of filter cartridge bottom also can be taken away the discharge, further improves from cutting fluid output pipeline 91 exhaust cutting fluid's cleanliness factor and flow, prevents because of cutting fluid impurity influences arouses the problem such as wire jumper, broken string among the slicing process, influences into piece quality and machining efficiency.

In one embodiment, the flush port 53 is located at the center of the cartridge cover 54, above the outside of the filter screen 56. From this setting to in the outside of filter screen 56, wash filter screen 56 from outside to inside for impurity etc. of adhesion on the inner wall of filter screen 56 can be after washing the bottom that drops at filter screen 56, and along with the flush liquid flows out filter screen 56 from drain 52, discharge filter equipment 50 is outer. Specifically, there are a plurality of flushing ports 53, and each flushing port 53 is uniformly distributed on the cartridge cover 54, preferably three flushing ports are provided at the center of the cartridge cover 54, and in other embodiments, the flushing ports can be provided as needed. In order to increase the flushing pressure and further improve the flushing effect, the flushing device further comprises a flushing nozzle which is detachably connected to the flushing port 53.

The specific operation process is as follows: after slicing, the filter cartridge needs to be cleaned, the filtering device 50 is of a non-dismantling cleaning structure, the filter screen 56 in the filter cartridge does not need to be taken out for cleaning, only the flushing interface 53 needs to be opened, meanwhile, the pulse water vapor outlet 63 of the pulse cleaning component 60, the cleaning liquid inlet 61 and the air inlet 62 connected with an air source are opened, compressed air of the air inlet 62 is used as a power source, cleaning liquid entering from the cleaning liquid inlet 61 is used as a cleaning medium, air flow sent out by the air compressor and the cleaning liquid form pulse and high-speed oscillating airflow waves through the pulse generator, the pulse continues to be transmitted along with the airflow waves downwards, so that high-speed water vapor vortex and high-pressure micro-bubbles are formed in the filter screen, the bubbles expand and burst after colliding with the wall to break and fall off dirt, as shown in fig. 7, the flushing interface 53 is positioned on the cartridge cover 54, and the pulse water vapor mixture washes the filter screen 56 from the flushing interface 53 to the outside of the filter screen 56, under pulse pressure and gravity combined action, can wash the dirt that adheres to on the inner wall of filter screen 56 down, the dirt of whereabouts is discharged to the filter equipment outside from the drain 52 that is located the barrel 55 bottom along rivers, under the combined action of pulse cleaning assembly and drain 52, accomplishes the washing to filter screen 56, and the setting of cutting fluid export 51 and drain 52 is more simple, only needs to set up on barrel 55, convenient production and processing.

And in the embodiment shown in fig. 8, a plurality of washes interface 53 and sets up on the circumference outer wall of barrel 55, pulse aqueous vapor mixture is in filter screen 56's all directions, wash it from outside to inside, wash interface 53's mode of setting, make pulse pressure loss few in the process of washing, can wash stubborn dirt on filter screen 56's the inner wall, simultaneously based on this characteristic that pulse pressure loss is few, theoretically, the dirt after the breakage can pass filter screen 56 and fall to barrel 55 in, can all set up cutting fluid export 51 and drain 52 on barrel 55, its simple structure is convenient for set up, can satisfy filter screen 56's washing demand simultaneously.

In another embodiment, the cutting fluid circulating system further comprises a blowdown pipeline 92, and a blowdown valve 400 is arranged on the blowdown pipeline 92; one end of the sewage discharge pipeline 92 is communicated with the filtering device, and the other end is communicated with the liquid supply device; it can be understood that, in the pulse cleaning process, the blowoff valve 400 is closed, and the cleaning liquid and the like are preferentially stored in the filter cylinder to soak the dirt and the like on the filter screen to a certain extent, so that the subsequent high-pressure washing is facilitated, and the washing effect is further improved; after the cleaning is completed, the soil discharge valve 400 is opened to uniformly discharge the soil.

Or, the method also comprises the steps of controlling the opening of the blowdown valve 400, wherein in the pulse cleaning process, the blowdown valve 400 is in an open state, so that the cleaning liquid can be discharged from the filter cylinder in time; it is within the scope of the present application that the form of the waste valve 400 during the cleaning process may be set as desired.

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

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, a cleaning power device and a cleaning pipeline, wherein one end of the cleaning pipeline is communicated with the cleaning power device, and the other end of the cleaning pipeline is communicated with the filtering device; the automatic cleaning method comprises the following steps:

2. The automatic cleaning method according to claim 1, wherein the cutting fluid circulation system further comprises a spraying device and a cutting fluid output pipeline; one end of the cutting fluid output pipeline is communicated with the filtering device, and the other end of the cutting fluid output pipeline is communicated with the spraying device; a cutting fluid outlet valve is arranged on the cutting fluid output pipeline;

the second step further comprises:

and controlling the cutting fluid outlet valve to be closed.

3. The automatic cleaning method according to claim 2, wherein the cleaning power device is a pulse generator having an air inlet line connected to an air source, the air inlet line having a control valve thereon;

the third step specifically comprises:

and controlling the on-off of a control valve of the cleaning power device at a preset frequency, and carrying out pulse washing on a filter screen of the filtering device at a preset pressure.

4. The automatic cleaning method according to claim 3, wherein the cutting fluid circulating system further comprises a liquid supply device and a sewage discharge pipeline, and a sewage discharge valve is arranged on the sewage discharge pipeline; 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 four: and controlling the blowdown valve to open, and discharging cleaning liquid and dirt in the filtering device to the liquid supply device.

5. The automated cleaning method of claim 4, further comprising:

step five: judging whether the flushing time length is greater than or equal to a first preset flushing time length, if so, controlling the cleaning power device to be closed and the cleaning pipeline to be disconnected; if not, repeating the second step to the fourth step.

6. The automatic cleaning method according to claim 3, wherein the air intake pipeline is provided with a pressure regulating valve; the third step specifically comprises:

and controlling the pressure regulating valve to reach the preset pressure so as to clean a filter screen of the filtering device.

7. The automatic cleaning method as claimed in claim 1, wherein the cleaning power device is a booster pump;

the third step specifically comprises:

and controlling the booster pump to start, and outputting preset pressure to the cleaning pipeline to clean a filter screen of the filtering device.

8. The automated cleaning method of claim 1, further comprising, between step one and step two:

if yes, executing the step two.

9. The automatic cleaning method according to claim 8, wherein the predetermined number of times is 1 to 2 times.

10. 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 step one.

11. The automatic cleaning method according to claim 3, wherein the pulse generator further comprises a pulse water vapor outlet and a cleaning liquid inlet pipeline, and the pulse water vapor outlet is connected with the cleaning pipeline.

12. The automatic cleaning method according to claim 11, 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 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.

13. The automatic cleaning method according to any one of claims 4 to 12, 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 a sewage discharge outlet; the filter cartridge has a cutting fluid outlet and a flush port;

the cutting fluid inlet is communicated with the liquid supply device;

the sewage draining outlet is used for draining cleaning liquid and sewage in the filter screen and is communicated with the sewage draining pipeline;

the cutting fluid outlet is communicated with the cutting fluid output pipeline;

the washing interface is communicated with the washing pipeline and is arranged corresponding to the position of the filter screen so as to wash the filter screen.

14. The automatic cleaning method according to any one of claims 4 to 12, 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; the filter cartridge having a flush tube; the bottom of the filtering device is provided with a cutting fluid outlet and a sewage outlet;

the cutting fluid inlet is communicated with the liquid supply device;

one end of the flushing pipe is communicated with the cleaning pipeline, and the other end of the flushing pipe extends into the filter screen; the flushing pipe is provided with a flushing jet orifice to flush the filter screen;

the cutting fluid outlet is communicated with the cutting fluid output pipeline; the sewage draining port is used for draining cleaning liquid and sewage in the filter screen and communicated with the sewage draining pipeline.

15. The automatic cleaning method according to claim 14, wherein the number of the flushing jet ports is several, and the flushing jet ports are uniformly arranged in the circumferential direction of the flushing pipe and are uniformly distributed along the axial direction of the flushing pipe.

16. The automatic cleaning method according to any one of claims 4 to 12, 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; the filter cylinder is provided with a cutting fluid outlet, a sewage draining outlet and a flushing interface;

the cutting fluid inlet is communicated with the liquid supply device;

the washing port is communicated with the washing pipeline and is arranged corresponding to the filter screen in position so as to wash the filter screen.

17. The automatic cleaning method of claim 16, wherein the cutting fluid outlet and the drain outlet are the same outlet; the filter device further comprises:

and one end of the main liquid outlet pipeline is communicated with the outlet, and the other end of the main liquid outlet pipeline is respectively communicated with the sewage discharge pipeline and the cutting liquid output pipeline.