CN217613294U

CN217613294U - Cutting fluid circulation system and wire cutting machine

Info

Publication number: CN217613294U
Application number: CN202221215631.1U
Authority: CN
Inventors: 尹燕刚; 张璐; 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: 2022-10-21
Anticipated expiration: 2032-05-20

Abstract

The embodiment of the application provides a cutting fluid circulation system and cutting machine, includes: the spraying device is used for spraying cutting liquid in a workpiece cutting area; the liquid supply device is used for containing cutting liquid and providing power for the circulation of the cutting liquid; the filtering device is used for filtering the cutting fluid, and the spraying device, the liquid supply device and the filtering device are sequentially communicated; the cleaning power device is communicated with the filtering device so as to automatically clean the filtering device; the cleaning power device is an ultrasonic washing assembly. From this setting for above-mentioned 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 form the piece quality. Meanwhile, the ultrasonic flushing component has good flushing effect and is convenient to set.

Description

Cutting fluid circulation system and wire cutting machine

Technical Field

The application relates to the technical field of wire cutting, in particular to a cutting fluid circulating system and 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 becomes poor, the flow of the cutting fluid is reduced, the problems of wire jumping, wire breakage and the like in the slicing process are caused, and the quality and the processing efficiency of workpieces 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 cutting fluid circulation system and wire cut electrical discharge machining to solve current filter equipment and need the manual work to change or wash, operate complicated and cleaning performance influence the problem of piece quality in the cartridge filter.

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

a cutting fluid circulation system comprising:

the spraying device is used for spraying cutting liquid in a workpiece cutting area;

the liquid supply device is used for containing cutting liquid and providing power for the circulation of the cutting liquid;

the filtering device is used for filtering the cutting fluid, and the spraying device, the liquid supply device and the filtering device are sequentially communicated;

the cleaning power device is communicated with the filtering device so as to automatically clean the filtering device; the cleaning power device is an ultrasonic washing assembly.

Optionally, the ultrasonic irrigation assembly further comprises:

the cleaning liquid inlet pipeline is connected with the filtering device and is used for allowing the cleaning liquid to enter the filtering device;

and the ultrasonic cleaning component at least partially extends into the filtering device to generate ultrasonic vibration to carry out ultrasonic washing on the filtering device.

Optionally, the filtering device comprises a filter cartridge and a filter screen, and the filter screen is located in the filter cartridge; the filter screen is provided with a cutting fluid inlet, the filter device is provided with a sewage discharge pipeline and a cutting fluid output pipeline, and the ultrasonic flushing component is arranged corresponding to the filter screen so as to perform ultrasonic flushing on the filter screen;

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;

the sewage discharge pipeline is used for discharging cleaning liquid and dirt in the filtering device; one end of the sewage discharge pipeline is communicated with the filtering device.

Optionally, the

And the cleaning liquid inlet pipeline is connected with the filter cartridge and is used for allowing the cleaning liquid to enter the filter cartridge.

Optionally, the filter cartridge comprises:

a cylinder body;

the barrel cover is positioned at the top of the barrel body and is detachably connected with the barrel body.

Optionally, the ultrasonic cleaning assembly comprises an ultrasonic transducer and an ultrasonic amplitude transformer, one end of the ultrasonic transducer is detachably connected with the cylinder cover, the other end of the ultrasonic transducer is connected with the ultrasonic amplitude transformer, and one end of the ultrasonic amplitude transformer, which is far away from the ultrasonic transducer, penetrates through the cylinder cover and extends into the filter screen so as to ultrasonically clean the filter screen.

Optionally, a sealing gasket is arranged between the ultrasonic transducer and the cylinder cover;

the cartridge filter still includes sealed pressure disk, sealed pressure disk is located ultrasonic transducer is last, and through threaded fastener with the cover is fixed, with ultrasonic transducer with the cover compresses tightly.

Optionally, the ultrasonic flushing assembly comprises an ultrasonic vibration rod and an ultrasonic vibrator, the ultrasonic vibrator is located inside the ultrasonic vibration rod, one end of the ultrasonic vibration rod is fixed with the filter cartridge, and the other end of the ultrasonic vibration rod extends to the inside of the filter screen.

Optionally, one end of the ultrasonic vibration rod is detachably and fixedly connected to the cylinder cover, and the other end of the ultrasonic vibration rod extends into the filter screen;

the ultrasonic vibrator is sleeved inside the ultrasonic vibration rod and extends to the inside of the filter screen.

Optionally, a sealing gasket is arranged between the ultrasonic vibration rod and the cylinder cover;

the circumferential outer wall of the ultrasonic vibration rod is provided with a flange part, the lower surface of the flange part is attached to the upper surface of the cylinder cover, and the flange part is fixed with the cylinder cover through a threaded fastener; the flange part and the ultrasonic vibration rod are integrally arranged.

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

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

Optionally, one end of the cleaning liquid inlet pipeline is communicated with the sewage discharge pipeline, and the sewage discharge port is reused as a liquid inlet of the cleaning liquid inlet pipeline, so that the washed dirt cannot be retained in the filter screen, the interior of the filter screen cannot be blocked, and the flow of the cutting liquid is ensured to be within a preset range.

Optionally, one end of the cleaning liquid inlet pipeline is communicated with the cutting liquid output pipeline, the cutting liquid outlet is reused as the liquid inlet of the cleaning liquid inlet pipeline, an opening is not required to be additionally arranged on the filter cartridge, and the cleaning liquid inlet pipeline is convenient to install.

Optionally, one end of the cleaning liquid inlet pipeline is located on the circumferential side wall of the barrel, a liquid inlet of the cleaning liquid inlet pipeline is located on the outer side of the filter screen, the filter screen is cleaned from outside to inside, and the washing effect is optimized.

Optionally, the method further comprises:

the cutting fluid outlet valve is positioned at one end of the cutting fluid output pipeline close to the cutting fluid outlet;

the blow-down valve is positioned on the blow-down pipeline and below the cleaning liquid inlet pipeline;

and the cleaning control valve is positioned on the cleaning liquid inlet pipeline to control the on-off of the pipeline.

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

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

Optionally, the method further comprises:

the heat exchange device is used for cooling the cutting fluid;

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

The application provides a wire cutting machine, which comprises the cutting fluid circulating system, a control device and a cutting device for cutting a workpiece, wherein the cutting fluid circulating system is arranged in any one of the above embodiments;

the control device is respectively connected with the spraying device, the liquid supply device, the filtering device and the cutting device of the cutting liquid circulating system.

The cutting fluid circulation system that this application embodiment provided includes: the spraying device is used for spraying cutting liquid in the workpiece cutting area; the liquid supply device is used for containing cutting liquid and providing power for the circulation of the cutting liquid; the filtering device is used for filtering the cutting fluid, and the spraying device, the liquid supply device and the filtering device are sequentially communicated; the cleaning power device is communicated with the filtering device so as to automatically clean the filtering device; the cleaning power device is an ultrasonic washing assembly. From this setting for above-mentioned 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 form the piece quality. Meanwhile, the ultrasonic flushing component has good flushing effect and is convenient to set.

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 cutting fluid circulation system according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a fluid path of a cutting fluid circulation system according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a filtering apparatus in a cutting fluid circulating system according to a first embodiment of the present disclosure;

FIG. 4 is a schematic view of a filtering apparatus of a cutting fluid circulating system according to a second embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a filtering apparatus in a cutting fluid circulating system according to a third embodiment of the present application;

FIG. 6 is a schematic structural diagram of a filtering apparatus in a cutting fluid circulating system according to a fourth embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a filtering device in a cutting fluid circulation system according to a fifth embodiment of the present application;

FIG. 8 is a schematic view of a filter device in a cutting fluid circulation system according to a sixth embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a filter cartridge in a cutting fluid circulation system according to an exemplary embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a wire cutting machine 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 an ultrasonic washing assembly 120;

a cutting fluid outlet 51, a sewage discharge outlet 52, a cylinder cover 54, a cylinder body 55, a filter screen 56, a cutting fluid inlet 57 and a boss 515;

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

an ultrasonic transducer 121, an ultrasonic amplitude transformer 122, a sealing pressure plate 123, an ultrasonic vibration rod 124, an ultrasonic vibrator 125 and a cleaning liquid inlet pipeline 126;

a flange portion 1241;

a cutting fluid outlet valve 300, a blowdown valve 400 and a cleaning control valve 900;

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 cutting fluid circulation system and wire cut electrical discharge machining to solve current filter equipment and need the manual work to change or wash, operate complicated and the cleaning performance influences the problem of piece quality in the cartridge filter.

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.

In a specific embodiment, as shown in fig. 10, fig. 10 is a schematic structural diagram of a 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; cutting zone assembly 1008 includes, among other things, a bed assembly 1006, a spindle assembly 1005, a four-column feed swing mechanism 1007, and a cutting zone shield assembly 1009.

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

Wherein, cutting device is used for cutting the work piece, and cutting device can set up to loop wire cutting device or multi-thread cutting device, can set up cutting device's 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 bed body component 1006 is used as a bearing component of the cutting component and the winding chamber component 1003; the main shaft assembly 1005 is provided with a high-speed rotating main shaft assembly 1005 with an internal circulation liquid cooling function, the left and the right of the main shaft assembly are respectively provided with one set, a diamond wire is wound on the main shaft assembly to form a cutting area, and the rear end of the main shaft is connected with a driving motor. The four-column feeding swing mechanism 1007 has a vertical direction feeding mechanism with a swing function, and is guided by four guide rails.

Generally, a cutting machine has a main frame, a cutting area frame is disposed at one end of the main frame in a length direction, and an electric control cabinet 1001, a winding chamber assembly 1003 and a winding chamber shield assembly 1004 are sequentially disposed on the main frame from top to bottom in a vertical direction. A portion of the fluid path system 1002 is provided at an end of the mainframe remote from the bed assembly 1006. In the vertical direction, 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.

As shown in fig. 1-2, fig. 1 is a schematic structural diagram of a cutting fluid circulation system according to an embodiment of the present disclosure; fig. 2 is a schematic diagram of a fluid path of a cutting fluid circulation system according to an embodiment of the present disclosure.

The application provides a cutting fluid circulation system, including spray set 20, collection device 80, liquid supply 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 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 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 next cutting operation is completed in the cutting process, only an operator needs to send a cleaning instruction, the equipment automatically completes 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 turn 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 an ultrasonic washing assembly, the position of the ultrasonic washing assembly corresponds to that of the filter screen 56, and the ultrasonic washing assembly is preferably arranged on the outer side of the filter screen 56 and cleans the filter screen 56 from outside to inside. The ultrasonic flushing component can be arranged into one or more, and the number of the ultrasonic flushing components can be set according to requirements, and the ultrasonic flushing component is within the protection scope of the application. In other embodiments, the cleaning power device can also be a pulse cleaning component or a water-gas backwashing component, and can be arranged as required.

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; the sewage draining pipeline 92 has one end communicated with the sewage draining port 52 of the filtering device 50 and the other end communicated with the liquid supply device 10.

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 cleaning steps are 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 is disconnected, the cutting fluid outlet 51 is opened, the sewage discharge pipeline 92 is disconnected, and the cleaning fluid inlet pipeline 126 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 adopting factory cooling water, the cooled cutting fluid is uniformly sprayed in a workpiece cutting area through a flow meter 40 through a spray pipe and flows back to the liquid supply device 10 through the bottom of the cutting chamber, and cutting fluid circulation in the machining process is formed;

when the cutting fluid flows back after a cut, the cutting fluid outlet 51 (the cutting fluid outlet pinch valve 511) is closed, the sewage outlet 52 (the sewage outlet pinch valve 510 is 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 or the cutting fluid outlet 51 of the filter cylinder 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 a trench through a water outlet of the fluid supply device 10. Need carry out the washing operation of cartridge filter after the section is accomplished, the filter equipment 50 that this application provided need not to take out the washing with filter screen 56 in the cartridge filter, only need open washing liquid inlet pipe way 126 according to certain washing process step, guarantee to wash the time cartridge filter and fill up the washing liquid, open supersonic generator, the principle is to convert the electric energy into ultrasonic energy to transmit incrustation scale, water, pipeline inner wall according to its self law, make it obtain very big energy. The vibration wave generated by the ultrasonic wave in the transmission process enables the water scale, water and the inner wall of the pipeline to resonate, and water molecules in the pipeline collide violently due to different vibration frequencies of the water scale, the water and the inner wall of the pipeline generate strong impact force to impact a scale layer on a heat exchange surface, so that the scale layer is crisp, peeled, fallen and crushed and is discharged along with the sewage discharge of equipment, thereby realizing the thorough cleaning of the inner wall of the pipeline by the ultrasonic vibration rod to complete the cleaning work of the filter cylinder, opening a sewage discharge pipeline 92 after the cleaning, and returning the cleaned sewage to the liquid supply device 10 to be 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.

Referring to fig. 3-8, fig. 3 is a schematic structural diagram of a filtering device in a cutting fluid circulating system according to a first embodiment of the present disclosure; FIG. 4 is a schematic structural diagram of a filtering apparatus in a cutting fluid circulating system according to a second embodiment of the present disclosure; FIG. 5 is a schematic view of a filter device in a cutting fluid circulation system according to a third embodiment of the present application; FIG. 6 is a schematic view of a filter device in a cutting fluid circulation system according to a fourth embodiment of the present application; FIG. 7 is a schematic diagram illustrating a filtering apparatus of a cutting fluid circulation system according to a fifth embodiment of the present disclosure; fig. 8 is a schematic structural diagram of a filtering device in a cutting fluid circulation system according to a sixth embodiment of the present application.

An important improvement of the cutting fluid circulation system provided by the present application in achieving the above-described self-cleaning effect is an improvement of the structure of the filtering apparatus. The filtering device used in the cutting fluid circulation system will be described in more detail below.

In a specific embodiment, the filtering device 50 is used for filtering cutting fluid of a 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, 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 realized by arranging a cover body and the like, and the specific form of the filter cartridge can be automatically arranged according to the requirement, which is all in the protection scope of the application; in order to facilitate the assembly and disassembly, the filter cartridge includes a cartridge body 55 and a cartridge cover 54, the cartridge cover 54 is located on the top of the cartridge body 55, and the cartridge cover and the cartridge body are detachably and fixedly connected, for example, fixed by a threaded fastener and the like.

As known to those skilled in the art, in order to achieve filtration of the cutting fluid in the filter device 50, a filter screen 56 is positioned in the filter cartridge to separate the interior of the filter cartridge into two spaces, allowing the cutting fluid to flow from one space to the other after being filtered; as shown in fig. 3, 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 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.

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

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 retained in the filtering device 50, the heat exchanger and other connecting pipelines to the liquid supply device 10 after cutting operation is completed each time and discharging the cutting liquid to 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.

Fig. 9 is a schematic cross-sectional view of a filter cartridge in a cutting fluid circulation system according to an embodiment of the present invention, as shown in fig. 9. 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 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.

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

The ultrasonic cleaning assembly 120 is used to connect an external cleaning unit, such as a water source or other cleaning fluid power equipment, which provides pressure for the cleaning fluid to enter the filter cartridge and disturb it by ultrasonic waves.

From this setting for above-mentioned 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 form the piece quality. Meanwhile, the ultrasonic flushing component has good flushing effect and is convenient to set.

In the first embodiment, the ultrasonic cleaning assembly 120 includes a cleaning fluid inlet line 126 and an ultrasonic cleaning assembly. Wherein the ultrasonic cleaning assembly comprises an ultrasonic transducer 121 and an ultrasonic horn 122. One end of the ultrasonic transducer 121 is detachably and fixedly connected to the cylinder cover 54, the other end of the ultrasonic transducer is connected to the ultrasonic horn 122, and one end of the ultrasonic horn 122, which is far away from the ultrasonic transducer 121, penetrates through the cylinder cover 54 and extends along the axial direction of the filter screen 56 and into the filter screen 56. It will be appreciated that to enhance the flushing turbulation, an ultrasonic cleaning assembly may be provided at the center of the cartridge cover 54.

In order to improve the sealing effect between the ultrasonic cleaning assembly and the cylinder cover 54, a sealing gasket is disposed between the ultrasonic transducer 121 and the cylinder cover 54, preferably, a sealing groove is disposed on the upper surface of the cylinder cover 54, the sealing gasket is disposed in the sealing groove, the ultrasonic transducer 121 is disposed on the upper surface of the cylinder cover 54, and the sealing gasket is clamped to achieve sealing through fixing the ultrasonic transducer 121 and the cylinder cover 54. In other embodiments, a suitable sealing means may be selected as desired, and is merely a preferred embodiment. Further, the filter cartridge further includes a sealing pressure plate 123, the sealing pressure plate 123 is located on the ultrasonic transducer 121, it is understood that the sealing pressure plate 123 is preferably provided with a relief hole in the middle, and is sleeved with the ultrasonic transducer 121, and meanwhile, an overlapping portion exists between the sealing pressure plate 123 and the ultrasonic transducer 121, so that after the sealing pressure plate 123 and the cartridge cover 54 are fixed, the ultrasonic transducer 121 and the cartridge cover 54 can be pressed tightly. Specifically, the sealing pressure plate 123 and the cylinder cover 54 are connected by a threaded fastener, such as a screw.

In a second embodiment, the ultrasonic rinsing assembly 120 may be provided as an ultrasonic horn 124 and an ultrasonic vibrator 125. Wherein the ultrasonic vibrator 125 is located inside the ultrasonic vibrating rod 124 and extends in the axial direction of the ultrasonic vibrating rod 124. One end of the ultrasonic vibration rod 124 is fixed to the filter cartridge, and the other end extends to the inside of the filter screen 56, and it can be understood that the ultrasonic vibrator 125 also extends to the inside of the filter screen 56 at this time, so as to perform ultrasonic vibration turbulence on the cleaning liquid inside the filter screen 56.

Specifically, one end of the ultrasonic vibration rod 124 is detachably and fixedly connected to the cylinder cover 54, a mounting hole is formed in the cylinder cover 54, the ultrasonic vibration rod 124 penetrates through the mounting hole of the cylinder cover 54, and the other end of the ultrasonic vibration rod extends into the filter screen 56. The ultrasonic vibrator 125 is sleeved inside the ultrasonic vibrating rod 124 and extends to the inside of the filter screen 56; from this setting to optimize the vortex effect to the flush fluid in filter screen 56, improve the washing effect. It is understood that a sealing gasket is also provided between the ultrasonic vibrating rod 124 and the cylinder cover 54; the cylinder cover 54 is provided with a sealing groove, the sealing gasket is positioned in the sealing groove, and the sealing gasket is tightly pressed between the ultrasonic vibration rod 124 and the cylinder cover 54 through fixation between the two. The filter cartridge is further provided with a sealing pressure plate 123, and the mounting manner of the sealing pressure plate 123 can be set with reference to the previous embodiment.

Or in another embodiment, the circumferential outer wall of the ultrasonic vibrating rod 124 is provided with a flange part 1241, the lower surface of the flange part 1241 is fitted with the upper surface of the cylinder cover 54, and the flange part 1241 is fixed with the cylinder cover 54 through a threaded fastener; the flange 1241 and the ultrasonic horn 124 are integrally provided. The barrel cover 54 is provided with a mounting hole, the ultrasonic vibration rod 124 penetrates through the mounting hole of the barrel cover 54, the caliber of the flange portion 1241 is larger than the caliber of the mounting hole, the flange portion 1241 can be overlapped on the upper surface of the barrel cover 54, the flange portion 1241 is provided with a screw to realize fixation with the barrel cover 54, and the ultrasonic vibration rod 124 compresses the barrel cover 54 to realize fixation.

In other embodiments, the specific structure of the ultrasonic flushing assembly can be set as required, and the specific structures of the ultrasonic transducer 121, the ultrasonic horn 122, the ultrasonic vibrating rod 124 and the ultrasonic vibrator 125 can be set according to the prior art.

Specifically, the cleaning liquid inlet line 126 is connected to the filter cartridge for allowing the cleaning liquid to enter the filter cartridge. The cleaning solution inlet line 126 has an inlet, and the cleaning solution inlet line 126 may be connected to the filter screen 56 and/or the filter cartridge. Preferably, the liquid inlet is arranged on the cylinder 55, so that the cleaning liquid in the cleaning liquid inlet pipe 126 washes the filter screen 56 from outside to inside, and the washed dirt is collected in the filter screen 56 together and is discharged along with the sewage outlet 52 at the bottom of the filter screen 56.

In one embodiment, one end of the sewage conduit 92 has a sewage outlet 52, the sewage outlet 52 is located at the bottom wall of the filter screen 56, and the other end of the sewage conduit 92 is located outside the filter device 50; one end of the cutting fluid output pipeline 91 is provided with a cutting fluid outlet 51, the cutting fluid outlet 51 is positioned on the bottom wall of the filter cylinder, and the other end of the cutting fluid output pipeline 91 is positioned outside the filter device 50. Specifically, the drain outlet 52 is located at the bottom of the filter screen 56 to facilitate the discharge of the cleaning solution, and a first sealing ring for connecting with a drain pipeline 92 is arranged at the drain outlet 52 to increase the tightness of the pipeline and prevent the leakage of the cleaning solution; the manner of sealing the connection can be arranged as desired, and is here only a preferred embodiment. In this embodiment, the dirt flushed by the filter screen 56 can be discharged out of the filter screen 56 along the bottom wall of the filter screen 56, so that the smoothness of the bottom of the filter screen 56 is better ensured, and the bottom is prevented from being blocked. The cutting fluid outlet 51 is located at the bottom of the cylinder 55, and a second sealing ring for connecting with the 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; likewise, the manner of sealing the connection may be arranged as desired, and is here merely a preferred embodiment.

It will be understood that as shown in fig. 3, the upper (top) and lower (bottom) directions are defined in the illustrated orientation, and as described herein and in the context of the same, the lid 54 is located at the top of the filter apparatus and the waste discharge outlet 52 is located at the bottom of the filter apparatus.

On this basis, one end of the cleaning liquid inlet pipe 126 is communicated with the sewage drain pipe 92, and the sewage drain 52 is reused as a liquid inlet of the cleaning liquid inlet pipe 126. The cleaning liquid in the cleaning liquid inlet pipeline 126 enters the filter screen 56 from the sewage outlet 52, the filter screen 56 is cleaned inside, after the cleaning is finished, dirt in the filter screen 56 can be discharged through the sewage outlet 52, so that the dirt after the cleaning cannot be retained in the filter screen 56, particularly large particles, the inside of the filter screen 56 cannot be blocked, the flow rate of the cutting liquid is ensured to be within a preset range, and meanwhile, the filtering effect in the filter screen 56 is further improved; meanwhile, an opening is not required to be additionally arranged on the filter screen 56, the cleaning liquid inlet pipeline 126 is communicated with the sewage discharge pipeline 92 conveniently, the installation is convenient, and meanwhile the whole sealing performance can be guaranteed.

As shown in fig. 3, the specific operation process is as follows: carry out the cleaning operation of cartridge filter after the section is accomplished, washing liquid inlet pipe way 126 passes through the drain inlet feed liquor, can be preferred to the breakage and the stirring of the dirt that lie in filter screen 56 bottom in the feed liquor process, and the back is accomplished to the feed liquor, washes the subassembly through the ultrasonic wave and carries out ultrasonic cleaning, and the dirt after the washing can be discharged through blowdown pipeline, from this in order to optimize washing to the filter screen.

In another embodiment, one end of the cleaning liquid inlet pipeline 126 is communicated with the cutting liquid outlet pipeline 91, and similarly, the cutting liquid outlet pipeline 91 and the cleaning liquid inlet pipeline 126 may also be disposed on the same pipeline, and the cutting liquid outlet 51 is reused as a liquid inlet of the cleaning liquid inlet pipeline 126; the cleaning liquid inlet pipeline 126 is communicated with the cutting liquid outlet pipeline 91 conveniently without additionally arranging an opening on the filter cartridge, and the installation is convenient.

As shown in fig. 5, the specific operation process is as follows: the cleaning liquid inlet pipeline 126 is communicated with the cutting liquid outlet 51, the cleaning liquid preferentially enters the filter cartridge and then enters the filter screen from outside to inside, and in the liquid inlet process, the filter screen can be cleaned simply from outside to inside in advance, so that the washing effect is indirectly optimized; after the filter cartridge is filled with the cleaning liquid, the filter screen is cleaned through the ultrasonic washing assembly.

Alternatively, one end of the cleaning liquid inlet pipe 126 is located on the circumferential side wall of the cylinder 55, and the liquid inlet of the cleaning liquid inlet pipe 126 is located on the outer side of the filter screen 56. Preferably, the cleaning liquid inlet pipe 126 is disposed at the middle upper portion of the cylinder 55, and the cleaning liquid is introduced into the filter cartridge through the cleaning liquid inlet pipe 126 to clean the filter screen 56 from outside to inside. Meanwhile, the cleaning liquid inlet pipeline 126 is arranged on the circumferential side wall of the cylinder 55, and the lower filter screen 56 can be further cleaned under the action of gravity along with the falling of the cleaning liquid, so that the washing effect is optimized.

As shown in fig. 4, the specific operation process is as follows: the cleaning liquid inlet pipeline 126 is arranged on the circumferential outer wall of the filter cylinder and can wash the filter screen from outside to inside, and dirt attached to the inner wall of the filter screen can be washed in advance in the cleaning liquid inlet process, so that the washing effect is indirectly improved; after the cleaning fluid is full of the filter cartridge, the ultrasonic flushing component starts to realize ultrasonic flushing of the filter device.

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

In this embodiment, in order to make and break the pipeline, the filtering apparatus 50 further comprises a cutting fluid outlet valve 300, a waste valve 400 and a cleaning control valve 900. 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; the blowdown valve 400 is located on the blowdown line 92 below the cleaning liquid inlet line 126; a purge control valve 900 is located on the purge liquid inlet line 126. 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 cleaning liquid inlet line 126. In one embodiment, blowoff valve 400 is located downstream of wash liquid inlet line 126 so as not to interfere with the opening and closing of wash liquid inlet line 126 when blowoff valve 400 closes blowoff line 92; meanwhile, after the blowoff valve 400 is opened, the filth in the front end pipe can be completely discharged. The cutting fluid outlet valve 300 may be configured as a pinch valve, and the waste valve 400 may be configured as a pinch valve, and the type and model of the specific valve are not limited, which is within the scope of the present application.

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 cleaning liquid inlet pipeline 126 to be communicated (the cleaning control valve 900 is communicated) until the cleaning liquid is filled in the filter cylinder of the cutting liquid circulating system, and then closing the cleaning liquid inlet pipeline 126 to ensure that the filter cylinder is filled with water during cleaning; and controlling the ultrasonic operation, wherein the working frequency range is that f is more than or equal to 15KHz and less than or equal to 80KHz, and washing the filter screen 56 at a preset frequency.

The specific cleaning steps are as follows:

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

(2) the method comprises the following steps Opening the liquid path electromagnetic valve to fill the filter cartridge with water;

(3) the method comprises the following steps Closing the liquid path electromagnetic valve;

(4) the method comprises the following steps Controlling an ultrasonic vibrating rod to work through an ultrasonic power supply, wherein the working frequency range of ultrasonic waves is more than or equal to 15KHz and less than or equal to 80KHz, and the working time is more than or equal to 10min and less than or equal to t and less than or equal to 50min;

(5) the method comprises the following steps The blow-down valve 400 is opened, and the water after the filter cartridge is cleaned is discharged into the liquid supply tank;

(6) the method comprises the following steps The waste valve 400 is closed and the cleaning is complete.

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. A cutting fluid circulation system, comprising:

2. The cutting fluid circulation system of claim 1, wherein the ultrasonic rinsing assembly further comprises:

the ultrasonic cleaning assembly at least partially extends into the filtering device to generate ultrasonic vibration to carry out ultrasonic washing on the filtering device.

3. The cutting fluid circulation system of claim 2, wherein the filter device comprises 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 device is provided with a sewage discharge pipeline and a cutting fluid output pipeline, and the ultrasonic flushing component is arranged corresponding to the filter screen so as to perform ultrasonic flushing on the filter screen;

the sewage discharge pipeline is used for discharging cleaning liquid and dirt inside the filtering device; one end of the sewage discharge pipeline is communicated with the filtering device.

4. The cutting fluid circulation system of claim 3, wherein one end of the blowdown line is in communication with the filter device and the other end is in communication with the liquid supply device via a return line.

5. The cutting fluid circulation system of claim 3, wherein the cleaning fluid inlet line is connected to the filter cartridge for entry of cleaning fluid into the filter cartridge.

6. The cutting fluid circulation system of claim 5, wherein the filter cartridge comprises:

a cylinder body;

7. The cutting fluid circulation system of claim 6, wherein the ultrasonic cleaning assembly comprises an ultrasonic transducer and an ultrasonic horn, one end of the ultrasonic transducer is detachably connected with the cylinder cover, the other end of the ultrasonic transducer is connected with the ultrasonic horn, and one end of the ultrasonic horn, which is far away from the ultrasonic transducer, penetrates through the cylinder cover and extends to the interior of the filter screen so as to ultrasonically clean the filter screen.

8. The cutting fluid circulation system of claim 7, wherein a sealing gasket is arranged between the ultrasonic transducer and the cylinder cover;

9. The cutting fluid circulating system of claim 6, wherein the ultrasonic flushing assembly comprises an ultrasonic vibrating bar and an ultrasonic vibrator, the ultrasonic vibrator is located inside the ultrasonic vibrating bar, one end of the ultrasonic vibrating bar is fixed with the filter cylinder, and the other end of the ultrasonic vibrating bar extends to the inside of the filter screen.

10. The cutting fluid circulation system according to claim 9, wherein one end of the ultrasonic vibration rod is detachably and fixedly connected to the cover, and the other end extends into the filter screen;

11. The cutting fluid circulating system according to claim 10, wherein a sealing gasket is arranged between the ultrasonic vibrating bar and the cylinder cover;

12. The cutting fluid circulation system according to any one of claims 7 to 11, wherein one end of the sewage drainage pipeline is provided with a sewage drainage port, the sewage drainage port is positioned at the bottom wall of the filter screen, and the other end of the sewage drainage pipeline is positioned outside the filter device;

13. The cutting fluid circulation system of claim 12 wherein one end of the cleaning fluid inlet line is in communication with the blowdown line, and the blowdown port is reusable as a fluid inlet of the cleaning fluid inlet line.

14. The cutting fluid circulation system of claim 12, wherein one end of the cleaning fluid inlet line is in communication with the cutting fluid outlet line, and the cutting fluid outlet is reused as a fluid inlet of the cleaning fluid inlet line.

15. The cutting fluid circulation system of claim 12, wherein one end of the cleaning fluid inlet line is located on the circumferential side wall of the cylinder, and the fluid inlet of the cleaning fluid inlet line is located outside the filter screen.

16. The cutting fluid circulation system of claim 12, further comprising:

the blowdown valve is positioned on the blowdown pipeline and below the cleaning liquid inlet pipeline;

and the cleaning control valve is positioned on the cleaning liquid inlet pipeline.

17. The cutting fluid circulation system of claim 16, wherein the fluid supply device has a fluid supply pump and a fluid supply cylinder, a first end of the fluid supply pump being in communication with the fluid supply cylinder;

18. The cutting fluid circulation system of claim 17, further comprising:

the heat exchange device is used for cooling the cutting fluid;

19. A wire cutting machine comprising a cutting fluid circulation system as claimed in any one of claims 1 to 18, control means and cutting means for cutting a workpiece;