CN217613320U - Filtering device for filtering cutting fluid of wire cutting machine - Google Patents

Abstract

The embodiment of the application provides a filtering device for filtering cutting fluid of a wire cutting machine, which comprises a filter cartridge and a filter screen, wherein the filter screen is positioned in the filter cartridge; the filter screen is provided with a cutting fluid inlet, the filter device is provided with a drain outlet and a cutting fluid outlet, and the filter device is also used for being connected with a water vapor backwashing component so as to perform water vapor backwashing on the filter screen; the cutting fluid inlet is used for flowing cutting fluid to be filtered into the filtering device; the sewage draining port is used for draining the cleaning liquid and the sewage in the filter screen to the outside of the filter device; and the cutting fluid outlet is used for discharging the filtered cutting fluid. 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.

Description

Filtering device for filtering cutting fluid of wire cutting machine

Technical Field

The application relates to the technical field of wire cutting, in particular to a filtering device for filtering cutting fluid 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 not only seriously affects the efficiency of the operation, but also causes high production costs due to the replacement of the filter bag. 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 cutting quality of the workpiece.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a filter equipment for filtering wire cut electrical discharge machining cutting fluid to it needs the manual work to change or wash, operates complicated and cleaning performance to influence the problem of piece quality in the cartridge filter to solve current filter equipment.

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

a filtering device for filtering cutting fluid of a wire cutting machine comprises a filter cartridge and a filter screen, wherein the filter screen is positioned in the filter cartridge; the filter screen is provided with a cutting fluid inlet, the filter device is provided with a drain outlet and a cutting fluid outlet, and the filter device is also used for being connected with a water-gas back washing component so as to carry out water-gas back washing on the filter screen;

the cutting fluid inlet is used for flowing cutting fluid to be filtered into the filtering device;

the sewage draining outlet is used for draining the cleaning liquid and the sewage in the filter screen to the outside of the filter device;

and the cutting fluid outlet is used for discharging the filtered cutting fluid.

Optionally, the water gas backwash assembly comprises:

the first end of the backflushing liquid pipeline is used for being connected with a liquid supply source;

the first end of the backflushing air pipeline is used for being connected with an air source.

The sewage draining outlet is positioned on the bottom wall of the filter screen; the cutting fluid outlet is positioned on the bottom wall of the filter cylinder. 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 drain outlet, and the drain outlet is reused as the liquid inlet of the backflushing liquid pipeline.

Optionally, the second end of the backflushing gas pipeline is communicated with the drain outlet, and the drain outlet 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 fluid outlet, and the cutting fluid 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 communicated with the cutting liquid outlet respectively, and the cutting liquid outlet is reused as the liquid inlet of the backflushing liquid pipeline and the gas inlet of the backflushing gas pipeline. So that the flushed dirt can be discharged through the sewage outlet in the filter screen.

Optionally, the method 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.

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, the method further comprises:

the liquid path electromagnetic valve is positioned on the backflushing liquid pipeline;

and the electromagnetic valve is positioned on the backflushing air pipeline.

The filtering device for filtering the cutting fluid of the wire cutting machine comprises a filter cartridge and a filter screen, wherein the filter screen is positioned in the filter cartridge; the filter screen is provided with a cutting fluid inlet, the filter device is provided with a drain outlet and a cutting fluid outlet, and the filter device is also used for being connected with a water vapor backwashing component so as to perform water vapor backwashing on the filter screen; the cutting fluid inlet is used for flowing cutting fluid to be filtered into the filtering device; the sewage draining outlet is used for draining cleaning liquid and sewage in the filter screen to the outside of the filter device; and the cutting fluid outlet is used for discharging the filtered cutting fluid.

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

the filter comprises a filter cartridge and a filter screen, wherein the filter screen is positioned in the filter cartridge; the filter screen is provided with a cutting fluid inlet, the filter device is provided with a drain outlet and a cutting fluid outlet, and the filter device is also used for being connected with a water vapor backwashing component so as to perform water vapor backwashing on the filter screen; the cutting fluid inlet is used for flowing cutting fluid to be filtered into the filtering device; the sewage draining port is used for draining the cleaning liquid and the sewage in the filter screen to the outside of the filter device; and the cutting fluid outlet is used for discharging the filtered cutting fluid. 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.

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 according to a first embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a filter device according to a second embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a filter device according to a third embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a filtering apparatus according to a fourth embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a cutting fluid circulation system using the filtration apparatus provided herein;

FIG. 6 is a schematic fluid circuit diagram of a cutting fluid circulation system using a filter apparatus according to a first embodiment of the present disclosure;

FIG. 7 is a schematic fluid circuit diagram of a cutting fluid circulation system using a filter apparatus according to a second embodiment of the present application;

FIG. 8 is a cross-sectional schematic view of a filter cartridge of a filter assembly according to an embodiment of the present disclosure;

fig. 9 is a schematic structural view of a wire cutting machine using the filtering apparatus provided in 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 discharge outlet 52, a cylinder cover 54, a filtering cylinder 55, a filter screen 56, a cutting fluid inlet 57 and a turbulence barrel 514;

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 blowdown 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 utility model discloses filter equipment for filtering wire cut electrical discharge machining cutting fluid to solve current filter equipment and need artifical change or wash, operate complicated and the cleaning performance influence the problem of becoming the piece quality to filter tube internal filter screen.

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 the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1-4, fig. 1 is a schematic structural diagram of a filtering apparatus according to a first embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a filter device according to a second embodiment of the present disclosure; FIG. 3 is a schematic structural view of a filter device according to a third embodiment of the present disclosure; fig. 4 is a schematic structural diagram of a filtering apparatus according to a fourth embodiment of the present application.

In a specific embodiment, the present application provides a filtering device 50 for filtering 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. Wherein, filter screen 56 is located the cartridge filter, and the cartridge filter is preferred airtight cavity, and the cartridge filter is stainless steel material, and filter screen 56 is preferred 50-300 meshes, can set up filter screen 56 mesh according to impurity particle diameter. In order to realize the installation of the filter screen 56, the filter cartridge can be provided with a cover body and the like, and the specific form of the filter cartridge can be set according to the requirement, which is all within 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 this 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 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. The filtering device is provided with a sewage discharge port 52 and a cutting fluid outlet 51, and a sewage discharge pipeline 92 is connected to the sewage discharge port 52; the sewage discharge pipeline 92 is used for discharging cleaning liquid and dirt inside the filter screen 56, the sewage discharge port 52 is preferably communicated with the outside, the dirt and the like are discharged out of the filter device 50, and similarly, when the sewage discharge port 52 is arranged on the filter screen 56, the filter cartridge is provided with an avoiding port for avoiding the sewage discharge 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 of a filter cartridge of a filter device according to an embodiment of the present disclosure, 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.

The cutting fluid output pipeline 91 is used for discharging the filtered cutting fluid, and the cutting fluid output pipeline 91 is connected to the cutting fluid outlet 51. The cutting fluid outlet 51 is positioned on the filter cartridge or the filter screen 56, and 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 filter 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 output pipeline 91 is in a closed state, so as to prevent impurities and the like in the cleaning process from entering the spraying device 20.

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

the filter comprises a filter cartridge and a filter screen, wherein the filter screen is positioned in the filter cartridge; the filter screen is provided with a cutting fluid inlet, the filter device is provided with a drain outlet and a cutting fluid outlet, and the filter device is also used for being connected with a water-gas backwashing component so as to carry out water-gas backwashing on the filter screen; the cutting fluid inlet is used for flowing cutting fluid to be filtered into the filtering device; the sewage draining port is used for draining the cleaning liquid and the sewage in the filter screen to the outside of the filter device; and the cutting fluid outlet is used for discharging the filtered cutting fluid. 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.

Specifically, drain 52 is located the diapire of filter screen 56 for discharge the inside cleaning fluid of filter screen and filth to filter equipment's outside, 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, with the leakproofness of increase pipeline, prevents the problem that the washing liquid was revealed, and sealing connection's mode can set up as required, and this place is only a preferred embodiment. In this embodiment, the dirt washed by the filter screen 56 can be discharged out of the filter screen 56 along the bottom wall of the filter screen 56, so as to better ensure the smoothness of the bottom of the filter screen 56 and prevent the bottom 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 both herein and in the context of this orientation, it will be understood that the lid 54 is at the top of the filter apparatus and the waste outlet 52 is at the bottom of the filter apparatus.

The sewage draining outlet 52 is positioned at the bottom wall of the filter screen 56; the cutting fluid outlet 51 is located in the bottom wall of the filter cartridge. 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 sewage outlet 52, and the sewage outlet 52 is reused as a liquid inlet of the backflushing liquid pipeline 111, at the moment, the second end of the backflushing gas pipeline 112 is communicated with the sewage outlet 52, and the sewage outlet 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 port 52, 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 the 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 gas pipeline 112 and recoil liquid pipeline 111 respectively with the drain intercommunication realize the washing of filter screen 56 bottom, strengthen the washing of filter screen 56 other parts through the bucket that flows around, optimize the washing effect.

As shown in fig. 1, the specific operation process is as follows: based on the fact that the drain outlet is used 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 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, 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 the whole filter device can be disturbed to the greatest extent; the water flow and the air flow directly enter the bottom of the filter screen 56, and effectively wash the dirt deposited at the bottom of the filter screen; 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 back-flushing gas line 112 is in communication with the cutting fluid outlet, and the cutting fluid outlet 51 is reused as a gas inlet for the back-flushing 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 port 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 sewage outlet 52, and the sewage outlet 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 sewage outlet 52 or the cutting liquid outlet 51, and can be set as required; in the third embodiment, the second end of the backflushing liquid pipeline 111 and the second end of the backflushing gas pipeline 112 are respectively communicated with the cutting liquid outlet 52, and the cutting liquid outlet 51 is reused as a liquid inlet of the backflushing liquid pipeline 111 and a gas inlet of the backflushing gas 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 interface is positioned on the circumferential outer wall of the filter cylinder, so that the filter screen 56 is washed from outside to inside, and the sewage after washing 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 includes 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 vapor 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 are all within the protection scope of the present application.

In one embodiment, the filter device 50 further includes a pressure sensing assembly 70 secured to the barrel 55, preferably removably attached for easy removal; 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:

(1) the method comprises the following steps The cutting fluid outlet valve 300 and the blowdown valve 400 are closed;

(2) the method comprises the following steps The liquid path solenoid valve 700 is opened to allow the cartridge filter to be filled with water;

(3) the method comprises the following steps The fluid path solenoid valve 700 is closed;

(4) 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 5 Hz) and the duration is more than or equal to 30s and less than or equal to t and less than or equal to 10min;

(5) the method comprises the following steps 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;

(6) the method comprises the following steps The blowoff valve 400 is closed;

(7) the method comprises the following steps And (5) repeating the steps (2) to (5) (the steps (2) to (5) are one cleaning cycle), wherein the number of times of repetition is more than or equal to 1 and less than or equal to 10, and the cleaning is finished.

For the sake of easy understanding of the specific application and arrangement of the filtering device in the cutting fluid circulating system and the wire cutting machine, the wire cutting machine and the cutting fluid circulating system are specifically described herein as an example. Fig. 9 is a schematic structural view of a wire cutting machine using the filter device provided by the present application, as shown in fig. 9. 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 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 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 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, 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. 5-7, fig. 5 is a schematic structural diagram of a cutting fluid circulation system provided herein;

FIG. 6 is a schematic fluid circuit diagram of a cutting fluid circulation system using a filter apparatus according to a first embodiment of the present disclosure; fig. 7 is a schematic diagram of a cutting fluid circulation system using a filter device according to a second embodiment of the present disclosure.

Based on above-mentioned filter equipment 50, this application still provides a cutting fluid circulation system, including spray set 20, collection device 80, washing power device, confession liquid device 10 and filter equipment 50. 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 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 district and spray. Preferably, the cutting fluid recycling 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 to be filtered, 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 may be provided as a mortar pump, and in other embodiments, a corresponding power device may be provided as needed.

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 outside 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 flushing unit or a pulse flushing unit, and all of them are within the scope of the present application.

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.

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 exchange 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 fluid is stored in the fluid 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 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 closed) 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 remained in the filter cylinder, namely the sewage discharge pipeline 92 and the cutting fluid output pipeline 91 can be communicated with the return pipe and are discharged to the 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 continues for a certain time, when the flushing flow rate is high, the filter layer expands during the back flushing, the whole filter layer reaches a fluidized state, the advantages of water saving (about reducing the water consumption by 20-30%), energy saving, high flushing cleanliness, long filtering period and the like are achieved, only the back flushing gas pipeline 112 and the back flushing liquid pipeline 111 need to be opened according to certain cleaning process steps, the cleaning work of the filter cartridge is completed, the sewage discharge pipeline 92 is opened after the cleaning is completed, and the sewage after the cleaning flows back to the liquid supply device 10 and is discharged through a trench. 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 back flushing gas line 112 is controlled to open (the solenoid valve 800 is opened) to inflate 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 5Hz.

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 (10)

1. The filtering device for filtering cutting fluid of the wire cutting machine is characterized by comprising a filter cylinder and a filter screen, wherein the filter screen is positioned in the filter cylinder; the filter screen is provided with a cutting fluid inlet, the filter device is provided with a drain outlet and a cutting fluid outlet, and the filter device is also used for being connected with a water vapor backwashing component so as to perform water vapor backwashing on the filter screen;

the cutting fluid inlet is used for flowing cutting fluid to be filtered into the filtering device;

the sewage draining outlet is used for draining the cleaning liquid and the sewage in the filter screen to the outside of the filter device;

and the cutting fluid outlet is used for discharging the filtered cutting fluid.

2. The filter apparatus for filtering cutting fluid of a wire cutting machine of claim 1, wherein the water gas backwash assembly comprises:

a first end of the backflushing liquid pipeline is used for being connected with a liquid supply source, and a second end of the backflushing liquid pipeline is communicated with the filtering device so as to provide backflushing liquid for the filtering 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.

3. The filtering device for filtering cutting fluid of a wire electric discharge machine according to claim 2, wherein the drain outlet is located at a bottom wall of the filter screen; the cutting fluid outlet is positioned on the bottom wall of the filter cylinder.

4. The filtering device for filtering cutting fluid of a wire electric discharge machine according to claim 3, wherein a second end of the backflushing fluid pipe is communicated with the drain outlet, and the drain outlet is reused as a liquid inlet of the backflushing fluid pipe.

5. The filter device for filtering cutting fluid of a wire electric discharge machine according to claim 4, wherein the second end of the blowback air line is communicated with the drain outlet, and the drain outlet is reused as an air inlet of the blowback air line.

6. The filter device for filtering cutting fluid of a wire electric discharge machine according to claim 4, wherein the second end of the backflushing air line communicates with the cutting fluid outlet, which is reused as an air inlet of the backflushing air line.

7. The filtering device for filtering cutting fluid of a wire electric discharge machine according to claim 3, wherein the second end of the backflushing fluid pipeline and the second end of the backflushing gas pipeline are respectively communicated with the cutting fluid outlet, and the cutting fluid outlet is reused as a liquid inlet of the backflushing fluid pipeline and a gas inlet of the backflushing gas pipeline.

8. The filtering device for filtering cutting fluid of a wire electric discharge machine according to claim 5, further comprising:

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.

9. The filtering device for filtering cutting fluid of a wire electric discharge machine according to claim 3, wherein the second end of the backflushing fluid pipe and the second end of the backflushing gas pipe have the same backflushing port, and the backflushing port is located on a circumferential outer wall of the filter cartridge and is opposite to an outer wall of the filter screen.

10. The filtering device for filtering cutting fluid of a wire electric discharge machine according to claim 2, further comprising:

the liquid path electromagnetic valve is positioned on the backflushing liquid pipeline;

and the electromagnetic valve is positioned on the backflushing air pipeline.

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