阅读说明：本技术 漆包线铜芯拉丝用冷却液循环过滤系统及其使用方法 (Cooling liquid circulating and filtering system for enameled wire copper core wire drawing and use method thereof ) 是由 黎志勇 于 2021-07-16 设计创作，主要内容包括：漆包线铜芯拉丝用冷却液循环过滤系统及其使用方法,包括循环箱,所述的循环箱上设有注液管、出液管、送液管、安装框和多个顶盖,安装框上设有过滤结构,过滤结构与回液管连接,回液管上设有第一水泵,送液管上设有第二水泵。采用上述结构,系统布设适用于大规模加工生产使用,冷却液统一循环过滤,保证各加工位置冷却液质量相同,保证加工质量稳定统一；多级过滤配合,避免不同量级杂质混合堆积,过滤效率快,质量高；过滤网、纸等过滤结构保持匀速运动,不仅避免杂质堆积导致过滤效率下降,同时通过移动持续清理杂质,保持高质量的过滤效果,速度调节灵活,适配多种加工操作需要。(The cooling liquid circulating and filtering system for enameled wire copper core wire drawing and the using method thereof comprise a circulating box, wherein a liquid injection pipe, a liquid outlet pipe, a liquid feeding pipe, an installation frame and a plurality of top covers are arranged on the circulating box, a filtering structure is arranged on the installation frame and connected with a liquid return pipe, a first water pump is arranged on the liquid return pipe, and a second water pump is arranged on the liquid feeding pipe. By adopting the structure, the system layout is suitable for large-scale processing production, the cooling liquid is uniformly and circularly filtered, the quality of the cooling liquid at each processing position is ensured to be the same, and the processing quality is ensured to be stable and uniform; the multistage filtration is matched, so that the mixing and accumulation of impurities with different magnitudes are avoided, the filtration efficiency is high, and the quality is high; filtration structures such as filter screen, paper keep uniform motion, not only avoid impurity to pile up and lead to filtration efficiency to descend, continuously clear up impurity through removing simultaneously, keep high-quality filter effect, speed control is nimble, the multiple processing operation needs of adaptation.)

1. Enameled wire copper core cooling liquid circulating filtration system for wire drawing, including circulation case (1), its characterized in that: the circulating box (1) is provided with a liquid injection pipe (2), a liquid outlet pipe (3), a liquid delivery pipe (6), an installation frame (8) and a plurality of top covers (9), the installation frame (8) is provided with a filtering structure, the filtering structure is connected with a liquid return pipe (4), the liquid return pipe (4) is provided with a first water pump (5), and the liquid delivery pipe (6) is provided with a second water pump (7);

filtration including setting up shell (12) on installing frame (8), be equipped with feed inlet (13) on shell (12), discharge gate (14) and skeleton (15), skeleton (15) are connected with apron (17) through hinge structure (16), the position of feed inlet (13) is equipped with the blowing structure with filter paper complex on shell (12), the position of discharge gate (14) is equipped with the roll-up structure with filter paper complex on shell (12), be equipped with in shell (12) and mutually support live-rollers (20), with filter paper complex multiunit guide roll (21) and with liquid delivery pipe (6) complex fixed knot construct (23), the cover has filter screen (22) on live-rollers (20), set up in the outer region of filter screen (22) after filter paper passes through guide roll (21) cooperation, be equipped with first drive wheel (24) on guide roll (20), first drive wheel (24) are through first drive belt (25) and set up the second drive wheel (23) on motor (27) output (26) The motor (27) is connected with the shell (1) through a fixed seat (28) in a matching transmission way.

2. The cooling liquid circulating and filtering system for enameled wire copper core wire drawing according to claim 1, characterized in that: the bottom of the part of the liquid return pipe (4) in the shell (12) is provided with a plurality of liquid leakage ports (29).

3. The cooling liquid circulating and filtering system for enameled wire copper core wire drawing according to claim 1, characterized in that: the discharging structure comprises first limiting frames (30) symmetrically arranged on a shell (12), moving arms (31) in limiting and matching with the first limiting frames (30) are arranged in the first limiting frames (30), the moving arms (31) are connected with output ends of electric push rods (32), the electric push rods (32) are connected with the shell (12) through connecting seats (33), first mounting grooves (34) are formed in the moving arms (31), and material roller structures (35) are arranged in the first mounting grooves (34).

4. The cooling liquid circulating and filtering system for enameled wire copper core wire drawing according to claim 3, characterized in that: the material roller structure (35) comprises a first loading and unloading roller (36), two ends of the first loading and unloading roller (36) are provided with extension rollers (37) matched with the first mounting grooves (34), the extension rollers (37) are provided with adjusting threads (38) and adjusting rings (39) in threaded connection with the extension rollers (37) through the adjusting threads (38), and one sides of the adjusting rings (39) close to the moving arms (31) are provided with a plurality of balls (40) matched with the adjusting rings.

5. The cooling liquid circulating and filtering system for enameled wire copper core wire drawing according to claim 1, characterized in that: the winding structure comprises mounting arms (41) symmetrically arranged on a shell (12), a second mounting groove (42) is formed in each mounting arm (41), a winding roller (52) is arranged on each second mounting groove (42), a driven gear (54) is arranged on each winding roller (52), a rotating shaft (43) is arranged on each mounting arm (41), a driving gear (45) and a third driving wheel (44) which are meshed with the driven gear (54) are arranged on each rotating shaft (43), the third driving wheel (44) is in matched transmission with a fourth driving wheel (56) arranged at the output end of a motor (27) through a second driving belt (55), and a positioning ring (53) matched with the mounting arms (41) is arranged on each winding roller (52).

6. The cooling liquid circulating and filtering system for enameled wire copper core wire drawing according to claim 5, characterized in that: the mounting arm (41) on be equipped with spacing frame of second (46), be equipped with on spacing frame of second (46) locating piece (47) and with spacing complex movable block (49) of spacing frame of second (46), movable block (49) are connected with locating piece (47) through elastic component (48), be equipped with even board (50) on movable block (49), be equipped with on even board (50) with roll-up roller (52) complex scrape material seat (51), be equipped with collecting box (62) in the position under even board (50).

7. The cooling liquid circulating and filtering system for enameled wire copper core wire drawing according to claim 1, characterized in that: fixed knot construct (23) including symmetry set up fixed plate (57) in shell (12), be equipped with on fixed plate (57) with return liquid pipe (4) complex locating hole (58) and connecting rod (59), be equipped with between fixed plate (57) that the symmetry set up a plurality of with filter screen (22) complex location roller (60), be equipped with multiunit doctor-bar (61) on location roller (60).

8. The cooling liquid circulating and filtering system for enameled wire copper core wire drawing according to claim 1, characterized in that: the top cover (9) is provided with a plurality of groups of anti-skid grains (10) and a first lifting handle (11).

9. The cooling liquid circulating and filtering system for enameled wire copper core wire drawing according to claim 1, characterized in that: the cover plate (17) is provided with a second lifting handle (18) and a plurality of groups of air holes (19).

10. The use method of the cooling liquid circulation and filtration system for wire drawing of the enameled wire copper core according to any one of claims 1-9 is characterized by comprising the following steps:

firstly), before use, a motor (27) is started, and the position of a discharge hole (14) is matched with a filter screen (22) to rotate so as to clean the filter screen and keep no impurity residue on the filter screen (22);

secondly), cooling liquid required by circulation is injected through the liquid injection pipe (2), then a filter paper cylinder is sleeved on the material roller (35) and placed in a material placing structure, the end of filter paper on the filter paper cylinder is drawn out from the material outlet (14) through the material inlet (13) and the plurality of groups of guide rollers (21) and is matched and fixed with the winding roller (52);

thirdly), the liquid return pipe (4) and the liquid sending pipe (6) are respectively communicated with the cooling liquid inlet and the cooling liquid outlet of each wire drawing device through a pipeline system to realize the smooth circulation of a cooling liquid pipeline, and then the motor (27), the first water pump (5) and the second water pump (7) are started to work;

fourthly) during filtering, the used cooling liquid is sent into the shell (12) through the liquid return pipe (4) under the work of the first water pump (5), and is evenly discharged through a plurality of liquid leakage ports (29) arranged at the bottom of the liquid return pipe (4), under the work of the motor (27), the rotating roller (20) and the furling roller (52) continuously rotate to drive the filter screen (22) and the filter paper to continuously move, the cooling liquid flowing out through the liquid leakage ports (29) sequentially passes through the filter screen (22) and the filter paper, impurities are filtered in a layered mode, large-particle impurities are reserved on the filter screen (22), small-particle impurities are reserved on the filter paper, the filter screen (22) is matched with a scraping blade (61) on a positioning roller (60) in the rotating process, the impurities on the filter screen can be continuously swept, the blockage of the filter screen (22) is avoided, the furling roller (52) drives the filter paper to convey, and the used filter paper can be furled and collected through the discharge port (14), the unused filter paper can be discharged continuously through the discharging structure and enters the filtering area, so that high-efficiency filtering is kept;

fifthly), after the cooling liquid in one period is filtered and circulated, the cooling liquid circulating system is stopped, the waste cooling liquid is discharged through the liquid outlet pipe (3), meanwhile, the cover plate (17) is opened to clean the filter screen (22) in the shell (12), and the filter paper cylinder after the used filter paper cylinder of the winding roller (52) is disassembled.

Technical Field

The invention relates to the technical field of enameled wire production and processing, in particular to a cooling liquid circulating and filtering system for enameled wire copper core wire drawing and a using method thereof.

Background

The enameled wire is a main variety of winding wires and consists of a conductor and an insulating layer, and a bare wire is annealed and softened and then is subjected to painting and baking for multiple times. In the production process of the enameled wire, the conductive copper wire needs to be drawn for many times, and the subsequent processing can be carried out after the copper wire with the proper diameter is obtained. And at the wire drawing in-process, in order to guarantee the wire drawing quality, need use a large amount of coolant liquids to its wire drawing cooling, avoid the overheated copper wire damage that causes of wire drawing in-process, can promote its use number of times through loop filter's structure when traditional coolant liquid uses, thereby reach the purpose of energy-concerving and environment-protective reduce cost, and set up simple loop filter structure on the device itself through wire drawing device or other needs use coolant liquids among the prior art mostly, filter large granule impurity, block up the liquid pipeline when avoiding recycling, to the product that machining precision requires not high, this kind of mode is enough to satisfy its daily use. However, when the enameled wire copper core is drawn, because the copper core can be drawn to an extremely fine state, once the cooling liquid still contains the impurity that does not block up the pipeline, drench the cooling liquid and will make the less impurity of particle diameter adhere to on the copper core at the wire drawing in-process, not only block up the wire drawing mould easily at the in-process of wire drawing processing, pass the mould along with the wire drawing process is synchronous more easily, cause the damage of appearing not uniform in size on the copper core to influence the whole quality of enameled wire.

Disclosure of Invention

The invention aims to solve the technical problem of providing a cooling liquid circulating and filtering system for enameled wire copper core wire drawing and a using method thereof, wherein the system is arranged and suitable for large-scale processing production, the cooling liquid is uniformly circulated and filtered, the quality of the cooling liquid at each processing position is ensured to be the same, and the processing quality is ensured to be stable and uniform; the multistage filtration is matched, so that the mixing and accumulation of impurities with different magnitudes are avoided, the filtration efficiency is high, and the quality is high; the filtering structures such as the filter screen and the paper keep moving at a constant speed, so that the reduction of the filtering efficiency caused by the accumulation of impurities is avoided, meanwhile, the impurities are continuously cleaned through moving, the high-quality filtering effect is kept, the speed is flexibly adjusted, and the requirements of various processing operations are met; the filter feeding is even, the impurity clearance is convenient, the circular operation is environment-friendly and efficient, the production cost is greatly reduced, and the processing quality is improved.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the cooling liquid circulating and filtering system for enameled wire copper core wire drawing comprises a circulating box, wherein a liquid injection pipe, a liquid outlet pipe, a liquid feeding pipe, an installation frame and a plurality of top covers are arranged on the circulating box, a filtering structure is arranged on the installation frame and is connected with a liquid return pipe, a first water pump is arranged on the liquid return pipe, and a second water pump is arranged on the liquid feeding pipe;

the utility model discloses a filter structure, including setting up the shell on the installing frame, be equipped with the feed inlet on the shell, discharge gate and skeleton, the skeleton passes through hinge structure and cover connection, the position of feed inlet is equipped with and filters paper complex blowing structure on the shell, the position of discharge gate is equipped with and filters paper complex roll-up structure on the shell, be equipped with the live-rollers of mutually supporting in the shell, with filter paper complex multiunit guide roll and with liquid delivery pipe complex fixed knot construct, the cover has the filter screen on the live-roller, filter paper sets up in the outer region of filter screen after passing through the guide roll cooperation, be equipped with first drive wheel on the guide roll, first drive wheel is through first drive belt and the second drive wheel cooperation transmission of setting on the motor output, the motor passes through the fixing base and is connected with the shell.

In a preferred scheme, the bottom of the part of the liquid return pipe in the shell is provided with a plurality of liquid leakage ports.

In the preferred scheme, the blowing structure set up the first spacing frame on the shell including the symmetry, be equipped with in the first spacing frame rather than spacing complex moving arm, the moving arm is connected with electric putter's output, electric putter passes through the connecting seat and is connected with the shell, is equipped with first mounting groove on the moving arm, is equipped with the material roller structure in the first mounting groove.

In the preferred scheme, the material roller structure include first loading and unloading roller, the both ends of first loading and unloading roller be equipped with first mounting groove complex extend the roller, extend the roller and be equipped with adjusting screw and through adjusting screw and extend roller threaded connection's adjustable ring, one side that the adjustable ring is close to the removal arm is equipped with a plurality ofly and rather than complex ball.

In the preferred scheme, the winding structure comprises mounting arms symmetrically arranged on the shell, a second mounting groove is formed in each mounting arm, a winding roller is arranged on each second mounting groove, a driven gear is arranged on each winding roller, a rotating shaft is arranged on each mounting arm, a driving gear meshed with the driven gear and a third driving wheel are arranged on each rotating shaft, each third driving wheel is in matched transmission with a fourth driving wheel arranged at the output end of the motor through a second driving belt, and a positioning ring matched with the mounting arms is arranged on each winding roller.

In the preferred scheme, the mounting arm is provided with a second limiting frame, the second limiting frame is provided with a positioning block and a moving block in limiting fit with the second limiting frame, the moving block is connected with the positioning block through an elastic piece, the moving block is provided with a connecting plate, the connecting plate is provided with a scraping seat matched with the winding roller, and a collecting box is arranged right below the connecting plate.

In the preferred scheme, the fixed structure comprises fixed plates symmetrically arranged in the shell, positioning holes and connecting rods matched with the liquid return pipes are arranged on the fixed plates, a plurality of positioning rollers matched with the filter screen are arranged between the symmetrically arranged fixed plates, and a plurality of groups of scraping blades are arranged on the positioning rollers.

In the preferred scheme, the top cover is provided with a plurality of groups of anti-skid grains and a first lifting handle.

In the preferred scheme, a second lifting handle and a plurality of groups of air holes are arranged on the cover plate.

The cooling liquid circulating and filtering system for enameled wire copper core wire drawing and the use method thereof have the following beneficial effects by adopting the structure:

(1) the system layout is suitable for large-scale processing production, the cooling liquid is uniformly circulated and filtered, the quality of the cooling liquid at each processing position is ensured to be the same, and the processing quality is ensured to be stable and uniform;

(2) the multistage filtration is matched, so that the mixing and accumulation of impurities with different magnitudes are avoided, the filtration efficiency is high, and the quality is high;

(3) the filtering structures such as the filter screen and the paper keep moving at a constant speed, so that the reduction of the filtering efficiency caused by the accumulation of impurities is avoided, meanwhile, the impurities are continuously cleaned through moving, the high-quality filtering effect is kept, the speed is flexibly adjusted, and the requirements of various processing operations are met;

(4) the filter feeding is even, the impurity clearance is convenient, the circular operation is environment-friendly and efficient, the production cost is greatly reduced, and the processing quality is improved.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

FIG. 3 is a schematic view of the structure of the circulation box of the present invention.

Fig. 4 is a schematic diagram of a filter structure according to the present invention.

Fig. 5 is a schematic view of the internal structure of the filter structure of the present invention.

Fig. 6 is a schematic view of the internal structure of the filter structure of the present invention.

Fig. 7 is a schematic view of the liquid return pipe structure of the present invention.

Fig. 8 is a schematic view of a filter structure according to the present invention.

Fig. 9 is a schematic view of a filter structure of the present invention.

Fig. 10 is a schematic view of the discharge structure of the present invention.

FIG. 11 is a schematic view of the material roller structure of the present invention.

Fig. 12 is a schematic view of the furling structure of the present invention.

Fig. 13 is a schematic view of the fixing structure of the present invention.

In the figure: the device comprises a circulation box 1, a liquid injection pipe 2, a liquid outlet pipe 3, a liquid return pipe 4, a first water pump 5, a liquid delivery pipe 6, a second water pump 7, a mounting frame 8, a top cover 9, anti-skid lines 10, a first lifting handle 11, a shell 12, a feed inlet 13, a discharge port 14, a framework 15, a hinge structure 16, a cover plate 17, a second lifting handle 18, a vent hole 19, a rotating roller 20, a guide roller 21, a filter screen 22, a fixed structure 23, a first driving wheel 24, a first driving belt 25, a second driving wheel 26, a motor 27, a fixed seat 28, a liquid leakage port 29, a first limiting frame 30, a moving arm 31, an electric push rod 32, a connecting seat 33, a first placing groove 34, a material roller structure 35, a first loading and unloading roller 36, an extension roller 37, an adjusting thread 38, an adjusting ring 39, a ball 40, a mounting arm 41, a second placing groove 42, a rotating shaft 43, a third driving wheel 44, a driving gear 45, a second limiting frame 46 and a positioning block 47, the device comprises an elastic piece 48, a moving block 49, a connecting plate 50, a scraping seat 51, a take-up roller 52, a positioning ring 53, a driven gear 54, a second driving belt 55, a fourth driving wheel 56, a fixing plate 57, a positioning hole 58, a connecting rod 59, a positioning roller 60, a scraping blade 61 and a collecting box 62.

Detailed Description

The first embodiment is as follows:

as shown in fig. 1-13, the cooling liquid circulating and filtering system for wire drawing of the enameled wire copper core comprises a circulating box 1, wherein a liquid injection pipe 2, a liquid outlet pipe 3, a liquid feeding pipe 6, an installation frame 8 and a plurality of top covers 9 are arranged on the circulating box 1, a filtering structure is arranged on the installation frame 8, the filtering structure is connected with a liquid return pipe 4, a first water pump 5 is arranged on the liquid return pipe 4, and a second water pump 7 is arranged on the liquid feeding pipe 6;

the filtering structure comprises a shell 12 arranged on a mounting frame 8, a feeding hole 13, a discharging hole 14 and a framework 15 are arranged on the shell 12, the framework 15 is connected with a cover plate 17 through a hinge structure 16, a discharging structure matched with the filter paper is arranged at the position of the feeding hole 13 on the shell 12, a winding structure matched with the filter paper is arranged at the position of the discharging hole 14 on the shell 12, rotating rollers 20 matched with each other are arranged in the shell 12, the filter paper is arranged in the outer layer area of the filter screen 22 after being matched with the guide rollers 21, the guide rollers 20 are provided with first driving wheels 24, the first driving wheels 24 are in matched transmission with second driving wheels 26 arranged on the output ends of motors 27 through first driving belts 25, and the motors 27 are connected with the shell 1 through fixing seats 28.

In a preferred scheme, the bottom of the part of the liquid return pipe 4 in the shell 12 is provided with a plurality of liquid leakage ports 29. The liquid is filtered evenly and comprehensively, and the filtering efficiency is improved.

In the preferred scheme, the discharging structure comprises first limiting frames 30 symmetrically arranged on the shell 12, moving arms 31 in limiting fit with the first limiting frames 30 are arranged in the first limiting frames 30, the moving arms 31 are connected with output ends of electric push rods 32, the electric push rods 32 are connected with the shell 12 through connecting seats 33, first placing grooves 34 are formed in the moving arms 31, and material roller structures 35 are arranged in the first placing grooves 34. The discharging position is convenient to adjust.

In a preferred scheme, the material roller structure 35 comprises a first loading and unloading roller 36, extension rollers 37 matched with the first placing grooves 34 are arranged at two ends of the first loading and unloading roller 36, adjusting threads 38 and adjusting rings 39 in threaded connection with the extension rollers 37 through the adjusting threads 38 are arranged on the extension rollers 37, and a plurality of balls 40 matched with the adjusting rings 39 are arranged on one side, close to the moving arm 31, of the adjusting rings 39. The assembly is flexible, and inertia discharge is avoided.

In a preferred scheme, the winding structure includes mounting arms 41 symmetrically disposed on the housing 12, a second mounting groove 42 is disposed on the mounting arms 41, a winding roller 52 is disposed on the second mounting groove 42, a driven gear 54 is disposed on the winding roller 52, a rotating shaft 43 is disposed on the mounting arms 41, a driving gear 45 and a third driving wheel 44 engaged with the driven gear 54 are disposed on the rotating shaft 43, the third driving wheel 44 is driven by a second driving belt 55 in cooperation with a fourth driving wheel 56 disposed at an output end of the motor 27, and a positioning ring 53 engaged with the mounting arms 41 is disposed on the winding roller 52. The winding and dismounting are convenient, the positioning is accurate, and the winding and dismounting are stable and efficient with the power matching.

In a preferable scheme, the mounting arm 41 is provided with a second limit frame 46, the second limit frame 46 is provided with a positioning block 47 and a moving block 49 in limit fit with the second limit frame 46, the moving block 49 is connected with the positioning block 47 through an elastic piece 48, the moving block 49 is provided with a connecting plate 50, the connecting plate 50 is provided with a scraping seat 51 in fit with a furling roller 52, and a collecting box 62 is arranged right below the connecting plate 50. The material is continuously scraped in the winding process, so that the filter paper after use is wound and unloaded conveniently.

In a preferred scheme, the fixing structure 23 comprises fixing plates 57 symmetrically arranged in the housing 12, the fixing plates 57 are provided with positioning holes 58 and connecting rods 59 matched with the liquid return pipe 4, a plurality of positioning rollers 60 matched with the filter screen 22 are arranged between the symmetrically arranged fixing plates 57, and a plurality of groups of scraping blades 61 are arranged on the positioning rollers 60. The material scraping is carried out in cooperation with the normal work of the filter screen 22, so that the high-efficiency filtering effect is kept.

In a preferable scheme, a plurality of groups of anti-skid grains 10 and a first lifting handle 11 are arranged on the top cover 9. The antiskid effect is good, the dismouting of being convenient for.

In a preferable scheme, a second lifting handle 18 and a plurality of groups of air holes 19 are arranged on the cover plate 17. Is convenient to open and close, is convenient to clean and has good air permeability.

Example two:

as shown in fig. 1-13, the method of use of the present invention is:

firstly, before use, the motor 27 is started, the position of the discharge port 14 is matched with the filter screen 22 to rotate to clean the filter screen, and no impurity residue is left on the filter screen 22;

secondly, cooling liquid required by circulation is injected through the liquid injection pipe 2, then a filter paper cylinder is sleeved on the material roller 35 and placed in a material placing structure, the end of the filter paper on the filter paper cylinder is drawn out from the material outlet 14 through the material inlet 13 and the plurality of groups of guide rollers 21 and is matched and fixed with the winding roller 52;

thirdly, communicating the liquid return pipe 4 and the liquid sending pipe 6 with the cooling liquid inlet and the cooling liquid outlet of each wire drawing device through a pipeline system respectively to realize the smoothness of a cooling liquid circulation pipeline, and then starting the motor 27, the first water pump 5 and the second water pump 7 to start working;

fourthly, during filtering, the used cooling liquid is fed into the shell 12 through the liquid return pipe 4 under the work of the first water pump 5, and is uniformly discharged through a plurality of liquid leakage ports 29 arranged at the bottom of the liquid return pipe 4, under the work of the motor 27, the rotating roller 20 and the furling roller 52 continuously rotate to drive the filter screen 22 and the filter paper to continuously move, the cooling liquid flowing out through the liquid leakage ports 29 sequentially passes through the filter screen 22 and the filter paper, impurities are filtered in a layered mode, large-particle impurities are reserved on the filter screen 22, small-particle impurities are reserved on the filter paper, the filter screen 22 can continuously sweep the impurities on the filter paper by matching with the scraping blade 61 on the positioning roller 60 in the rotating process, the filter screen 22 is prevented from being blocked, the furling roller 52 drives the filter paper to furl and convey, the used filter paper can be furled and collected through the discharge port 14, and unused filter paper can continuously discharge and enter a filtering area through a discharge structure, keeping high-efficiency filtration;

and fifthly, after the cooling liquid is filtered and circulated for one period, stopping the cooling liquid circulating system, discharging the waste cooling liquid through the liquid outlet pipe 3, opening the cover plate 17 to clean the filter screen 22 in the shell 12, and detaching the used filter paper cylinder of the winding roller 52.

The invention has the beneficial effects that: the system layout is suitable for large-scale processing production, the cooling liquid is uniformly circulated and filtered, the quality of the cooling liquid at each processing position is ensured to be the same, and the processing quality is ensured to be stable and uniform; the multistage filtration is matched, so that the mixing and accumulation of impurities with different magnitudes are avoided, the filtration efficiency is high, and the quality is high; the filtering structures such as the filter screen and the paper keep moving at a constant speed, so that the reduction of the filtering efficiency caused by the accumulation of impurities is avoided, meanwhile, the impurities are continuously cleaned through moving, the high-quality filtering effect is kept, the speed is flexibly adjusted, and the requirements of various processing operations are met; the filter feeding is even, the impurity clearance is convenient, the circular operation is environment-friendly and efficient, the production cost is greatly reduced, and the processing quality is improved.