Automatic carbonized graphite film production calendering device

Abstract

The invention discloses an automatic carbonized graphite film production calendering device, and relates to the field of graphite film calendering, the automatic carbonized graphite film production calendering device comprises a shell and a heating calendering roller arranged on the left side of the shell, the right side of the shell is provided with a winding roller, the rear end of the shell is provided with a driving motor, and the front end and the rear end of the shell are provided with electric sliding rods. When the automatic calendering device for carbonized graphite film production is used, a driving motor is started, a heating calendering roller can be driven to rotate when the driving motor is started, winding can be conducted through a winding roller, meanwhile, after a carbonized graphite film penetrates through the heating calendering roller, the carbonized graphite film penetrates through an attaching plate in a lifting block, an electric sliding rod is started at the moment, and then the carbonized graphite film is conveyed to the heating calendering roller. The electric sliding rod can drive the lifting block to conduct height adjustment under the action of the electric sliding block, when the lifting block conducts height adjustment, the carbonized graphite film with the inner side clamped by the attaching plate is driven to conduct lifting shaking, impurities are prevented from being accumulated on the surface of the carbonized graphite film, and the impurities can be shaken away.

Description

Technical Field

[0001] The invention relates to the technical field of graphite film calendering, and in particular to an automated carbonized graphite film production calendering device. Background Art

[0002] During production, carbonized graphite film will be compressed using a calendering device to make it into thin sheets of equal thickness. The automated carbonized graphite film production calendering device is used to efficiently and accurately produce carbonized graphite film. Through automation technology, it improves production efficiency, product quality and consistency, while reducing human intervention and operational errors.

[0003] In the prior art, when the carbonized graphite film is calendered, the film material is easily broken, and the carbonized graphite film cannot be calendered stably.

[0004] In order to overcome the above shortcomings, the Chinese patent of the prior art (Announcement No. CN215320622U) discloses a graphite film calendering and laminating machine. The graphite film calendering mechanism includes a graphite film unwinding shaft and a graphite film calendering roller section. The protective film composite mechanism includes a calendered graphite film feed tension control section, a protective film unwinding shaft, a protective film unwinding guide shaft group, a composite roller pressing section, and a composite film winding shaft. The protective film and the calendered graphite film are composited by the composite roller pressing section and then wound on the composite film winding shaft. The traditional graphite film calendering and protective film composite are combined into one, and there is no need to perform unwinding and laminating after calendering and winding, which simplifies the production process, reduces production costs, and improves production efficiency. It meets the tension control requirements for calendered graphite film, and at the same time meets the composite guidance requirements for protective film and calendered graphite film, and the quality of the composite film is greatly improved and guaranteed. It has a material carrier design that is easy to cut and splice, which meets the requirements of splicing defective film materials after cutting.

[0005] In order to overcome the above-mentioned shortcomings, a Chinese patent of the prior art (Announcement No. CN205311011U) discloses a calendering mechanism for graphite film, wherein the carrier film to be delivered is located between an upper roller and a lower roller, and a double-sided adhesive layer area is adhered to the upper surface of the carrier film; a graphite film is located on the upper surface of the carrier film and the front end of the graphite film is covered on the double-sided adhesive layer area, a covering film is placed on the surface of the graphite film opposite to the carrier film, and the covering film is located between the upper roller and the graphite film. The calendering mechanism for the graphite film effectively prevents the wrinkling of the graphite film caused by the relative sliding of the graphite film and the carrier film, so that when it is put into use later, it can be completely and tightly adhered to the heat-generating electronic components, with better thermal conductivity and easy operation.

[0006] Although the existing technology can overcome the above-mentioned deficiencies, there are still other problems in its operation process. For example, when the carbonized graphite film is calendered, if there are impurities on the surface, the impurities will easily cause the carbonized graphite film to deform when it is rolled up, thus easily causing damage to the carbonized graphite film, which is not conducive to the calendering of the carbonized graphite film and is inconvenient to use. Summary of the invention

[0007] The object of the present invention is to provide an automated carbonized graphite film production calendering device to solve the problem raised in the above background technology that when the carbonized graphite film is calendered, if there are impurities on the surface, the impurities will easily cause the carbonized graphite film after calendering to deform when it is rolled up, thereby easily causing damage to the carbonized graphite film, which is not conducive to the calendering of the carbonized graphite film and is inconvenient to use.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated carbonized graphite film production calendering device, comprising a shell and a heated calendering roller arranged on the left side of the shell, and a winding roller is arranged on the right side of the shell, and a driving motor is installed at the rear end of the shell; electric slide bars are arranged at the front and rear ends of the shell, and a shaking and impurity removal mechanism is arranged on the surface of the electric slide bar, and the shaking and impurity removal mechanism includes a lifting block, and the lifting block is located on the inner side of the electric slide bar; a gear rod is arranged inside the shell, and an auxiliary cooling mechanism is arranged at the front and rear ends of the gear rod, and the auxiliary cooling mechanism includes an installation bin, and the lower end of the installation bin is installed inside the shell; a collecting box is installed at the lower end of the shell, and a recycling mechanism is arranged inside the collecting box, and the recycling mechanism includes a through hole, and the through hole is opened inside the shell.

[0009] Furthermore, the heating calendering rollers are provided in two parts, one above the other, and the two heating calendering rollers are meshed with each other through gears, and the rear end of the lower heating calendering roller is connected to the output end of the driving motor.

[0010] Furthermore, a transmission belt is nested at the rear end of the winding roller through a belt, and the left side of the transmission belt is nested at the rear end of the lower heating calendering roller through a pulley.

[0011] Furthermore, the shaking and impurity removing mechanism also includes an electric slider, and the inner side of the electric slider is connected to the electric sliding rod, and the inner side of the electric slider is fixedly mounted on the front and rear ends of the lifting block.

[0012] Furthermore, a bonding plate is provided inside the lifting block, and a return spring is provided between the outer side of the bonding plate and the inner wall of the lifting block, and damping rods are installed through the upper and lower ends of the lifting block, and the inner side of the damping rod is fixedly installed on the outer side of the bonding plate, and the lower end of the bonding plate is inclined.

[0013] Furthermore, an airbag is fixedly installed inside the shell, and the airbag is sleeved on the surface of the electric slide rod, and the airbag and the electric slide bar form a pressed structure, and an air duct is arranged on the outside of the airbag, the upper end of the air duct is connected with a jet port, and the lower end of the jet port is fixedly installed on the upper end of the shell, and the output end of the jet port is aligned with the surface of the carbonized graphite film, and the inside of the airbag is connected to a one-way valve.

[0014] Furthermore, the auxiliary cooling mechanism also includes a tooth plate, and the upper end of the tooth plate is fixedly mounted on the lower end of the lifting block, and the tooth plate is meshed with the gear rod.

[0015] Furthermore, a first bevel gear is fixedly installed on the outside of the gear rod, and a second bevel gear is meshingly installed on the right side of the first bevel gear, and a threaded rod is installed on the right side of the second bevel gear, and the threaded rod is rotatably installed with the mounting bin, and a piston plate is threadedly installed on the surface of the threaded rod, and the outer side of the piston plate fits the inner wall of the mounting bin.

[0016] Furthermore, a water tank is fixedly installed inside the shell, and the lower end of the water tank is connected to the installation bin through a guide pipe, and a one-way valve is provided inside the guide pipe, the inner side of the installation bin is connected to a connecting pipe, and the upper end of the connecting pipe is connected to a water spray outlet, and the lower end of the water spray outlet is fixedly installed on the upper end of the water tank, and the output end of the water spray outlet is aligned with the carbonized graphite membrane.

[0017] Furthermore, the recycling mechanism also includes a filter plate, and the filter plate is nested and connected to the collection box, and the filter plate corresponds to the through hole, the rear end of the collection box is connected to the water storage tank through a return pipe, and a pressure pump is provided at the middle end of the return pipe, and the front end of the pressure pump is fixedly installed at the rear end of the shell, and the return pipe is located below the filter plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. When in use, the driving motor is started. When the driving motor is started, it can drive the heated calendering roller to rotate, and can be wound up by the winding roller. At the same time, after the carbonized graphite film passes through the heated calendering roller, it passes through the bonding plate inside the lifting block. At this time, the electric slide bar is started. Under the action of the electric slider, the electric slide bar can drive the lifting block to adjust the height. When the lifting block is adjusted in height, it drives the carbonized graphite film clamped by the bonding plate inside to rise and fall and shake, so as to avoid impurities accumulating on the surface of the carbonized graphite film and shake out the impurities; Furthermore, the laminating plate clamps the carbonized graphite film through the reset spring, and the setting of the damping rod can avoid the reciprocating vibration of the reset spring, thereby achieving the effect of stable clamping and anti-fracture; Furthermore, when the electric slider moves up and down along the electric slide rod, the electric slider squeezes the airbag, and the airbag is squeezed to transport the internal air to the air jet through the air duct. The air jet can also blow air toward the surface of the carbonized graphite film, thereby promoting the air circulation around the carbonized graphite film, allowing the dust and impurities shaken off to diffuse out, thereby improving the effect of shaking and removing impurities.

[0019] 2. When in use, add a proper amount of water into the water tank. At this time, as the height of the lifting block is adjusted, the tooth plate at the bottom of the lifting block moves with it. As the tooth plate moves up and down, it can drive the gear rod to rotate. When the gear rod rotates, water is squeezed by the piston plate and enters the water spray port along the connecting pipe. The water spray port is aimed at the surface of the carbonized graphite film to spray water for cooling. At this time, water spraying can be performed to prevent the high-temperature carbonized graphite film from solidifying together when winding, thereby improving the practicability of the device and avoiding the inability to remove the complete carbonized graphite film later.

[0020] 3. After the carbonized graphite membrane is cooled by spraying water, the cooled water level and through holes fall into the collection box. The water entering the collection box is filtered by the filter plate. The filtered water is cooled by the condenser inside the collection box. The cooled water is extracted by a pressure pump and sent back to the water storage tank under the action of the reflux pipe. In this way, it can be recycled and reused, which can save resource consumption and avoid waste of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention when viewed from above.

[0023] Figure 3 It is a schematic diagram of the front cross-sectional three-dimensional structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the side section of the present invention.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting block of the present invention in a side section view.

[0026] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the installation bin of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the gear rod of the present invention.

[0028] Figure 8 It is a schematic diagram of the meshing structure of the first bevel gear and the second bevel gear of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the filter plate of the present invention when viewed from above.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the reflux pipe in side section of the present invention.

[0031] In the figure: 1. Shell; 2. Heating calender roller; 3. Driving motor; 4. Driving belt; 5. Winding roller; 6. Electric slide bar; 7. Electric slider; 8. Lifting block; 9. Reset spring; 10. Laminating plate; 11. Damping rod; 12. Air bag; 13. Air guide pipe; 14. Jet nozzle; 15. Tooth plate; 16. Gear rod; 17. First bevel gear; 18. Second bevel gear; 19. Threaded rod; 20. Mounting bin; 21. Piston plate; 22. Water storage tank; 23. Guide pipe; 24. Connecting pipe; 25. Water spray nozzle; 26. Through hole; 27. Collecting box; 28. Filter plate; 29. ​​Reflux pipe; 30. Pressure pump. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: Figure 1-Figure 5The technical solution shown is an automated carbonized graphite film production calendering device. In order to solve the problem that impurities are easily left on the carbonized graphite film, the following is disclosed: a shell 1 and a heated calendering roller 2 are arranged on the left side of the shell 1, and a winding roller 5 is arranged on the right side of the shell 1, and a driving motor 3 is installed at the rear end of the shell 1; electric slide bars 6 are arranged at the front and rear ends of the shell 1, and a shaking impurity removal mechanism is arranged on the surface of the electric slide bar 6, and the shaking impurity removal mechanism includes a lifting block 8, and the lifting block 8 is located on the inner side of the electric slide bar 6, the heated calendering roller 2 is arranged in an upper and lower part, and the upper and lower heated calendering rollers 2 are meshed by gears, and the rear end of the lower heated calendering roller 2 is connected to the output end of the driving motor 3, the rear end of the winding roller 5 is provided with a transmission belt 4 through a belt nesting, and the left side of the transmission belt 4 is nested at the rear end of the lower heated calendering roller 2 through a pulley, and the shaking impurity removal mechanism also includes an electric The electric slider 7 is connected to the electric slide bar 6, and the inner side of the electric slider 7 is fixedly mounted on the front and rear ends of the lifting block 8. A bonding plate 10 is arranged inside the lifting block 8, and a return spring 9 is arranged between the outer side of the bonding plate 10 and the inner wall of the lifting block 8, and damping rods 11 are installed through the upper and lower ends of the lifting block 8, and the inner side of the damping rod 11 is fixedly mounted on the outer side of the bonding plate 10, and the lower end of the bonding plate 10 is inclined, and an airbag 12 is fixedly mounted inside the shell 1, and the airbag 12 is sleeved on the surface of the electric slide bar 6, and the airbag 12 forms a pressing structure with the electric slider 7, and an air guide tube 13 is arranged on the outer side of the air guide tube 13, and the upper end of the air guide tube 13 is connected with a jet port 14, and the lower end of the jet port 14 is fixedly mounted on the upper end of the shell 1, and the output end of the jet port 14 is aligned with the surface of the carbonized graphite film, and the inner side of the airbag 12 is connected with a one-way valve.

[0034] When in use, by starting the driving motor 3, the driving motor 3 can drive the heated calendering roller 2 to rotate when it is started. The upper and lower heated calendering rollers 2 are connected by gear meshing and rotate synchronously. When the heated calendering roller 2 at the lower end rotates, the winding roller 5 is driven by the transmission belt 4 and the pulley to rotate, so that as the carbonized graphite film is calendered by the heated calendering roller 2, it can be wound by the winding roller 5, and automatic calendering can be performed, which is convenient for the staff to use and easy to operate. At the same time, after the carbonized graphite film passes through the heated calendering roller 2, it passes through the bonding plate 10 inside the lifting block 8. At this time, the electric slide bar 6 is started. Under the action of the electric slider 7, the electric slide bar 6 can drive the lifting block 8 to adjust the height. The height adjustment of the lifting block 8 During the vibration, the carbonized graphite film clamped by the bonding plate 10 on the inner side is driven to rise, fall and vibrate. At the same time, the bonding plate 10 clamps the carbonized graphite film through the return spring 9. With the setting of the damping rod 11, the reciprocating vibration of the return spring 9 can be avoided, so as to achieve the effect of stable clamping and anti-fracture, and to avoid the accumulation of impurities on the surface of the carbonized graphite film. The impurities can be shaken out, and when the electric slider 7 moves up and down along the electric slide rod 6, the electric slider 7 squeezes the airbag 12, and the airbag 12 is squeezed to transport the internal air to the air jet 14 through the air guide pipe 13. The air jet 14 can also blow air toward the surface of the carbonized graphite film, so as to achieve the effect of promoting air circulation around the carbonized graphite film, and can diffuse the dust and impurities shaken off, thereby improving the effect of shaking and removing impurities.

[0035] Embodiment 2: Figure 1-Figure 8 The technical solution shown, on the basis of the first embodiment, in order to solve the problem that the carbonized graphite film with too high temperature is easy to stick together, discloses: a gear rod 16 is arranged inside the housing 1, and the front and rear ends of the gear rod 16 are provided with an auxiliary cooling mechanism, and the auxiliary cooling mechanism includes a mounting bin 20, and the lower end of the mounting bin 20 is mounted inside the housing 1, the auxiliary cooling mechanism also includes a tooth plate 15, and the upper end of the tooth plate 15 is fixedly mounted on the lower end of the lifting block 8, and the tooth plate 15 is meshed with the gear rod 16, a first bevel gear 17 is fixedly mounted on the outer side of the gear rod 16, and a second bevel gear 18 is meshedly mounted on the right side of the first bevel gear 17, A threaded rod 19 is installed on the right side of the second bevel gear 18, and the threaded rod 19 is rotatably installed with the mounting bin 20. A piston plate 21 is threadedly installed on the surface of the threaded rod 19, and the outer side of the piston plate 21 fits the inner wall of the mounting bin 20. A water tank 22 is fixedly installed inside the shell 1, and the lower end of the water tank 22 is connected to the mounting bin 20 through a guide pipe 23, and a one-way valve is arranged inside the guide pipe 23. The inner side of the mounting bin 20 is connected to a connecting pipe 24, and the upper end of the connecting pipe 24 is connected to a water spray port 25, and the lower end of the water spray port 25 is fixedly installed on the upper end of the water tank 22, and the output end of the water spray port 25 is aligned with the carbonized graphite film.

[0036] When in use, add an appropriate amount of water to the water storage tank 22. At this time, as the height of the lifting block 8 is adjusted, the toothed plate 15 at the bottom of the lifting block 8 moves with it. As the toothed plate 15 moves up and down, it can drive the gear rod 16 to rotate. When the gear rod 16 rotates, the meshing of the first bevel gear 17 and the second bevel gear 18 can drive the threaded rod 19 to rotate. When the threaded rod 19 rotates, it drives the piston plate 21 inside the mounting chamber 20. The piston plate 21 moves back and forth inside the mounting chamber 20. The water added to the water storage tank 22 enters the mounting chamber 20 along the one-way valve inside the guide pipe 23. As the piston plate 21 moves back and forth, the water inside the mounting chamber 20 is squeezed. The water is squeezed by the piston plate 21 and enters the water spray port 25 along the connecting pipe 24. The water spray port 25 is aimed at the surface of the carbonized graphite film to spray water for cooling. At this time, water spraying for cooling can be performed to prevent the high-temperature carbonized graphite film from solidifying together when winding, thereby improving the practicability of the device and preventing the subsequent inability to remove the complete carbonized graphite film.

[0037] Embodiment 3: Figure 1-Figure 10 The technical solution shown, on the basis of embodiment 2, in order to solve the problem of easy waste of resources, discloses: a collecting box 27 is installed at the lower end of the shell 1, and a recycling mechanism is arranged inside the collecting box 27, and the recycling mechanism includes a through hole 26, and the through hole 26 is opened inside the shell 1, the recycling mechanism also includes a filter plate 28, and the filter plate 28 is nested and connected to the collecting box 27, and the filter plate 28 corresponds to the through hole 26, the rear end of the collecting box 27 is connected to the water storage tank 22 through a return pipe 29, and a pressure pump 30 is arranged at the middle end of the return pipe 29, and the front end of the pressure pump 30 is fixedly installed at the rear end of the shell 1, and the return pipe 29 is located below the filter plate 28.

[0038] After the carbonized graphite membrane is cooled by spraying water, the cooled water level and through hole 26 fall into the collecting box 27, the water entering the collecting box 27 is filtered by the filter plate 28, and the filtered water is cooled by the condenser inside the collecting box 27. The cooled water is extracted by the pressure pump 30 and is sent back to the water storage tank 22 under the action of the reflux pipe 29, so that it can be recycled and reused, which can save resource consumption and avoid waste of materials.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated carbonized graphite film production calendering device, comprising a housing (1) and a heated calendering roller (2) arranged on the left side of the housing (1), a winding roller (5) being arranged on the right side of the housing (1), and a driving motor (3) being installed at the rear end of the housing (1); Features: The housing (1) is provided with electric slide bars (6) at both ends, and a shaking and impurity removal mechanism is provided on the surface of the electric slide bar (6). The shaking and impurity removal mechanism includes a lifting block (8), and the lifting block (8) is located on the inner side of the electric slide bar (6); A gear rod (16) is provided inside the housing (1), and auxiliary cooling mechanisms are provided at the front and rear ends of the gear rod (16), and the auxiliary cooling mechanism comprises a mounting chamber (20), and the lower end of the mounting chamber (20) is mounted inside the housing (1); A collection box (27) is installed at the lower end of the housing (1), and a recycling mechanism is provided inside the collection box (27), and the recycling mechanism includes a through hole (26), and the through hole (26) is opened inside the housing (1).

2. The automatic carbonized graphite film production calendering device according to claim 1, characterized in that: The heating calendering rollers (2) are provided in two parts, one above the other, and the two heating calendering rollers (2) are meshed with each other via gears, and the rear end of the lower heating calendering roller (2) is connected to the output end of the driving motor (3).

3. The automatic carbonized graphite film production calendering device according to claim 2, characterized in that: The rear end of the winding roller (5) is provided with a transmission belt (4) via a belt nesting, and the left side of the transmission belt (4) is nested at the rear end of the lower end heating calendering roller (2) via a belt pulley.

4. The automatic carbonized graphite film production calendering device according to claim 1, characterized in that: The shaking impurity removal mechanism also includes an electric slider (7), the inner side of the electric slider (7) is connected to the electric slide bar (6), and the inner side of the electric slider (7) is fixedly mounted on the front and rear ends of the lifting block (8).

5. The automatic carbonized graphite film production calendering device according to claim 4, characterized in that: A bonding plate (10) is arranged inside the lifting block (8), and a return spring (9) is arranged between the outer side of the bonding plate (10) and the inner wall of the lifting block (8). Damping rods (11) are installed through the upper and lower ends of the lifting block (8), and the inner side of the damping rod (11) is fixedly installed on the outer side of the bonding plate (10). The lower end of the bonding plate (10) is inclined.

6. The automatic carbonized graphite film production calendering device according to claim 5, characterized in that: An airbag (12) is fixedly mounted inside the housing (1), and the airbag (12) is sleeved on the surface of the electric slide bar (6), and the airbag (12) and the electric slide bar (7) form a pressed structure, and an air guide tube (13) is arranged on the outside of the airbag (12), the upper end of the air guide tube (13) is connected to an air jet (14), and the lower end of the air jet (14) is fixedly mounted on the upper end of the housing (1), and the output end of the air jet (14) is aligned with the surface of the carbonized graphite film, and the inside of the airbag (12) is connected to a one-way valve.

7. The automatic carbonized graphite film production calendering device according to claim 1, characterized in that: The auxiliary cooling mechanism further comprises a tooth plate (15), wherein the upper end of the tooth plate (15) is fixedly mounted on the lower end of the lifting block (8), and the tooth plate (15) is meshed with the gear rod (16).

8. The automatic carbonized graphite film production calendering device according to claim 7, characterized in that: A first bevel gear (17) is fixedly mounted on the outer side of the gear rod (16), and a second bevel gear (18) is meshingly mounted on the right side of the first bevel gear (17), and a threaded rod (19) is mounted on the right side of the second bevel gear (18), and the threaded rod (19) is rotatably mounted on the mounting chamber (20), and a piston plate (21) is threadedly mounted on the surface of the threaded rod (19), and the outer side of the piston plate (21) is in contact with the inner wall of the mounting chamber (20).

9. The automatic carbonized graphite film production calendering device according to claim 8, characterized in that: A water storage tank (22) is fixedly installed inside the housing (1), and the lower end of the water storage tank (22) is connected to the installation bin (20) via a flow guide pipe (23), and a one-way valve is provided inside the flow guide pipe (23), the inside of the installation bin (20) is connected to a connecting pipe (24), and the upper end of the connecting pipe (24) is connected to a water spraying port (25), and the lower end of the water spraying port (25) is fixedly installed at the upper end of the water storage tank (22), and the output end of the water spraying port (25) is aligned with the carbonized graphite membrane.

10. The automatic carbonized graphite film production calendering device according to claim 1, characterized in that: The recycling mechanism further comprises a filter plate (28), and the filter plate (28) is nested and connected with the collection box (27), and the filter plate (28) corresponds to the through hole (26), the rear end of the collection box (27) is connected to the water storage tank (22) through a return pipe (29), and a pressure pump (30) is provided at the middle end of the return pipe (29), and the front end of the pressure pump (30) is fixedly mounted on the rear end of the housing (1), and the return pipe (29) is located below the filter plate (28).

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