Oleophylic and hydrophobic hollow fiber membrane coating forming device and use method

Abstract

The invention relates to the technical field of coating forming devices, and discloses an oleophylic and hydrophobic hollow fiber membrane coating forming device and a use method.The oleophylic and hydrophobic hollow fiber membrane coating forming device comprises a base, a mounting frame is fixedly mounted on the upper surface of the base, a mounting plate is fixedly mounted at the top end of the mounting frame, and a T-shaped groove is formed in the outer surface of the mounting plate in a penetrating mode. According to the invention, the interior of the vacuum cover is in negative pressure, the hollow fiber membrane in the vacuum cover is in a negative pressure state, pores in the outer surface of the hollow fiber membrane can discharge air, chemical substances and impurities in the pores can be taken out during air discharge, and the taken-out chemical substances and impurities can be wiped by a subsequent wiping sponge; by means of the device, chemical substances and impurities in pores in the surface of the hollow fiber membrane to be coated can be removed, the situation that the chemical substances and the impurities affect the adhesive force and the uniformity of a coating is avoided, and the coating is not prone to falling off in subsequent use.

Description

Technical Field

[0001] The present invention relates to the technical field of coating and molding devices, and in particular to an oleophilic and hydrophobic hollow fiber membrane coating and molding device and a use method thereof. Background Art

[0002] As the water treatment industry continues to increase its requirements for the service life of hollow fiber membranes, the development of various types of braided tube reinforced hollow fiber membranes has attracted widespread attention in the industry. Usually, the preparation method of braided tube reinforced hollow fiber membranes is to directly coat the solution spinning matrix phase membrane forming system on the outer surface of the hollow braided tube, and then put it into a coagulation bath such as water for solidification and pore formation, and then obtain a braided tube reinforced hollow fiber membrane.

[0003] When in use, the existing coating and molding device directly coats the outer surface of the hollow fiber membrane. Since there are many pores inside the hollow fiber membrane, chemical substances and impurities that were not removed during the production process of the hollow fiber membrane remain in the pores. These chemical substances and impurities will affect the adhesion and uniformity of the coating, causing the coating to easily fall off during subsequent use. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an oleophilic and hydrophobic hollow fiber membrane coating and molding device and a method for using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A lipophilic and hydrophobic hollow fiber membrane coating and molding device comprises a base, a mounting frame is fixedly installed on the upper surface of the base, a mounting plate is fixedly installed on the top of the mounting frame, a T-slot is penetrated on the outer surface of the mounting plate, two T-slide blocks are symmetrically installed for sliding up and down between the inner walls of the T-slot, a vacuum cover is fixedly installed on one end of the two T-slide blocks, a rack is fixedly installed on the other end of the two T-slide blocks, a gear is rotatably installed on the outer surface of the mounting plate close to the rack, the gear and the two racks are meshed with each other, a compression cylinder is fixedly installed on the outer surface of the mounting frame close to one side of the gear, an air pipe joint is fixedly installed on the outer surface of the compression cylinder close to the top, the air pipe joint is connected with the vacuum cover above through an air pipe, a piston plate is slidably installed on the inner wall of the compression cylinder, a spring is fixedly installed on the lower surface of the piston plate, the spring is arranged inside the compression cylinder, and the air pipe joint is arranged above the piston plate.

[0006] As a further solution of the present invention, a column is fixedly installed on the upper surface of the piston plate, a guide column is fixedly installed on the top of the column through the top of the compression cylinder, a rotating rod is rotatably installed on the outer surface of the mounting frame close to the compression cylinder side, a guide groove is penetrated through the outer surface of the rotating rod close to one end of the column, and the guide column is slidably installed on the inner wall of the guide groove.

[0007] As a further solution of the present invention, a rotating shaft is rotatably installed on the outer surface of the mounting frame close to one side of the gear, a turntable is fixedly installed on one end of the rotating shaft, a driving groove is opened on the outer surface of one side of the turntable, a driving column is fixedly installed on the bottom of the rack close to the turntable, the driving column is slidably installed with the inner wall of the driving groove, a top block is fixedly installed on the circumferential outer surface of the turntable, and the top block is abutted against the lower surface of the other end of the rotating rod.

[0008] As a further solution of the present invention, two conveying rollers are symmetrically rotatably installed on the outer surface of the other side of the mounting frame, and a plurality of grooves are opened on the circumferential outer surfaces of the two conveying rollers. A plurality of tensioning wheels are rotatably installed on the outer surface of the other side of the mounting frame, and a winding wheel is rotatably installed on the outer surface of the other side of the mounting frame. The winding wheel is arranged below the two conveying rollers, and a hollow fiber membrane is wound around the outer surfaces of the conveying rollers, the winding wheel and the tensioning wheel, and the hollow fiber membrane is arranged inside the groove. The two vacuum covers are arranged between the two conveying rollers, and the hollow fiber membrane is arranged between the two vacuum covers.

[0009] As a further solution of the present invention, one end of the two conveying rollers close to the gear passes through the outer surface of the mounting frame and is fixedly installed with a sprocket, the outer surface of the sprocket is sleeved with a chain, and the end of the winding wheel close to the gear passes through the outer surface of the mounting frame and is fixedly installed with a driven groove wheel, a second pulley is fixedly installed on the outer surface of the rotation center of one of the sprockets, a first pulley is fixedly installed on the outer surface of the rotation center of the driven groove wheel close to the second pulley, and a first belt is wrapped around the outer surfaces of the first pulley and the second pulley.

[0010] As a further solution of the present invention, a support plate is fixedly installed on the outer surface of the mounting frame close to the driven groove wheel, a driving motor is fixedly installed on the outer surface of one side of the support plate, an output end of the driving motor passes through the outer surface of the support plate and an active dial is fixedly installed, the active dial is meshed with the driven groove wheel, a transmission shaft is fixedly installed on the outer surface of the rotation center of the active dial, a third pulley is fixedly installed on the outer surface of the transmission shaft, a fourth pulley is fixedly installed on the outer surface of the rotating shaft, and a second belt is sleeved on the outer surfaces of the fourth pulley and the third pulley.

[0011] As a further solution of the present invention, a liquid storage barrel is fixedly installed on the outer surface of one side of the mounting frame, a liquid filling valve is fixedly installed on the top of the liquid storage barrel, a one-way air inlet valve is fixedly installed on the top of the liquid storage barrel, an air pipe is also fixedly installed on the top of the liquid storage barrel, the other end of the air pipe is fixedly connected to the bottom of the compression cylinder, the liquid storage barrel is connected to the compression cylinder through the air pipe, a coating box is fixedly installed on the outer surface of the other side of the mounting frame, two spray pipes are fixedly installed on the inner wall of the coating box, a plurality of nozzles are arranged on the outer surfaces of the two spray pipes, the hollow fiber membrane is arranged between the two spray pipes, a cleaning dryer is fixedly installed on the outer surface of the other side of the mounting frame, and the hollow fiber membrane is arranged inside the cleaning dryer.

[0012] As a further solution of the present invention, a wiping plate is fixedly mounted on the top of the mounting frame, a wiping sponge is arranged on the lower surface of the wiping plate, and the hollow fiber membrane is arranged inside the wiping sponge.

[0013] A method for using an oleophilic and hydrophobic hollow fiber membrane coating and molding device comprises the following steps: S1: The operator winds the hollow fiber membrane to be coated around the outer surfaces of the conveying roller, the winding wheel and the tensioning wheel, and injects a certain amount of coating liquid into the liquid storage barrel by opening the liquid filling valve; S2: The driving motor drives the active dial to rotate, the active dial drives the driven groove wheel to rotate intermittently, and the driven groove wheel drives the winding wheel to rotate intermittently. This device facilitates continuous coating of the hollow fiber membrane; S3: The guide column and the guide groove drive the column to move downward, and the column drives the piston plate to move downward. At this time, the space above the piston plate of the compression cylinder is in a negative pressure state. At the same time, the air pipe makes the inside of the vacuum cover in a negative pressure state. Since the hollow fiber membrane inside the vacuum cover is in a negative pressure state, the pores on its outer surface will release gas, and the chemical substances and impurities inside the pores will be taken out when the gas is released; S4: When the piston plate moves downward, the air at the bottom of the compression cylinder will be compressed, and the air will enter the interior of the liquid storage barrel. At this time, the coating liquid will be sprayed out from the nozzle of the spray pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The guide column and the guide groove drive the column to move downward, and the column drives the piston plate to move downward. At this time, the space above the piston plate of the compression cylinder is in a negative pressure state. At the same time, the air pipe makes the inside of the vacuum cover in a negative pressure state. Since the hollow fiber membrane inside the vacuum cover is in a negative pressure state, the pores on its outer surface will release gas, and the chemical substances and impurities in the pores will be brought out when the gas is released. The brought out chemical substances and impurities will be wiped off by the subsequent wiping sponge. The device can remove the chemical substances and impurities in the pores on the surface of the hollow fiber membrane to be coated, so as to avoid the chemical substances and impurities affecting the adhesion and uniformity of the coating, so that the coating will not fall off easily during subsequent use; 2. The driving motor drives the active dial to rotate, the active dial drives the driven groove wheel to rotate intermittently, the driven groove wheel drives the first pulley to rotate intermittently, the first pulley drives the second pulley to rotate intermittently through the first belt, the second pulley drives one of the sprockets to rotate, the sprocket drives another sprocket to rotate through the chain, the two sprockets drive the two conveying rollers to rotate intermittently, and at the same time, the driven groove wheel drives the winding wheel to rotate intermittently. This device facilitates continuous coating processing of hollow fiber membranes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention; Figure 2 It is a rear view structural schematic diagram of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention; Figure 3 A schematic diagram of the internal structure of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention; Figure 4 A schematic diagram of a vacuum cover of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention; Figure 5 A schematic diagram of a turntable of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention; Figure 6 A schematic diagram of the gears of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention; Figure 7 A schematic diagram of a spray pipe of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention; Figure 8 A cross-sectional schematic diagram of a compression cylinder of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention; Fig. 9 This is a schematic diagram of the top block of an oleophilic and hydrophobic hollow fiber membrane coating and molding device proposed by the present invention.

[0016] In the figure: 1, base; 2, mounting frame; 201, coating box; 202, cleaning dryer; 3, take-up wheel; 4, conveyor roller; 5, tension wheel; 6, support plate; 7, driving motor; 8, active dial; 9, driven groove wheel; 10, first pulley; 11, first belt; 12, second pulley; 13, sprocket; 14, chain; 15, third pulley; 16, second belt; 17, fourth pulley; 18, turntable; 19, driving groove; 20, top block; 21, rotating rod; 22, guide groove; 23, compression cylinder; 24, piston plate; 25, column; 26, guide column; 27, spring; 28, vacuum cover; 29, mounting plate; 30, rack; 31, gear; 32, driving column; 33, liquid storage barrel; 34, one-way air inlet valve; 35, filling valve; 36, spray pipe; 37, wiping plate. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] Reference Figure 1-Figure 9, a oleophilic and hydrophobic hollow fiber membrane coating and molding device, comprising a base 1, a mounting frame 2 is fixedly installed on the upper surface of the base 1, a mounting plate 29 is fixedly installed on the top of the mounting frame 2, a T-slot is penetrated on the outer surface of the mounting plate 29, two T-slide blocks are symmetrically installed for sliding up and down between the inner walls of the T-slot, a vacuum cover 28 is fixedly installed on one end of the two T-slide blocks, a rack 30 is fixedly installed on the other end of the two T-slide blocks, a gear 31 is rotatably installed on the outer surface of the mounting plate 29 close to the rack 30, the gear 31 and the two racks 30 are meshed with each other, a compression cylinder 23 is fixedly installed on the outer surface of the mounting frame 2 close to the gear 31, an air pipe joint is fixedly installed on the outer surface of the compression cylinder 23 close to the top, and the air pipe joint is connected with the vacuum cover 28 above through an air pipe, a piston plate 24 is slidably installed on the inner wall of the compression cylinder 23, a spring 27 is fixedly installed on the lower surface of the piston plate 24, the spring 27 is arranged inside the compression cylinder 23, and the air pipe joint is arranged on the movable Above the plug plate 24, a column 25 is fixedly installed on the upper surface of the piston plate 24, and a guide column 26 is fixedly installed on the top of the column 25 through the top of the compression cylinder 23. A rotating rod 21 is rotatably installed on the outer surface of the mounting frame 2 close to the compression cylinder 23. A guide groove 22 is penetrated through the outer surface of the rotating rod 21 close to one end of the column 25, and the guide column 26 is slidably installed with the inner wall of the guide groove 22. A rotating shaft is rotatably installed on the outer surface of the mounting frame 2 close to the gear 31, and one end of the rotating shaft is fixedly installed. There is a turntable 18, and a driving groove 19 is opened on the outer surface of one side of the turntable 18. A driving column 32 is fixedly installed at the bottom of the rack 30 near the turntable 18, and the driving column 32 is slidably installed with the inner wall of the driving groove 19. A top block 20 is fixedly installed on the circumferential outer surface of the turntable 18, and the top block 20 is abutted against the lower surface of the other end of the rotating rod 21. A wiping plate 37 is fixedly installed on the top of the mounting frame 2, and a wiping sponge is arranged on the lower surface of the wiping plate 37, and a hollow fiber membrane is arranged inside the wiping sponge.

[0021] By rotating the turntable 18, the top block 20 lifts one end of the rotating rod 21, and the other end of the rotating rod 21 moves downward, driving the column 25 to move downward through the guide column 26 and the guide groove 22, and the column 25 drives the piston plate 24 to move downward. At this time, the space above the piston plate 24 of the compression cylinder 23 is in a negative pressure state. At the same time, the interior of the vacuum cover 28 is in a negative pressure state through the air pipe. Since the hollow fiber membrane located inside the vacuum cover 28 is in a negative pressure state, the pores on its outer surface will release gas, and the chemical substances and impurities inside the pores will be brought out when the gas is released. The brought out chemical substances and impurities will be wiped out by the subsequent wiping sponge. The device can remove the chemical substances and impurities inside the pores on the surface of the hollow fiber membrane to be coated, so as to prevent the chemical substances and impurities from affecting the adhesion and uniformity of the coating, so that the coating will not fall off easily during subsequent use.

[0022] In this embodiment, two conveying rollers 4 are symmetrically rotatably installed on the outer surface of the other side of the mounting frame 2, and a plurality of grooves are provided on the circumferential outer surfaces of the two conveying rollers 4. A plurality of tensioning wheels 5 are rotatably installed on the outer surface of the other side of the mounting frame 2. A winding wheel 3 is rotatably installed on the outer surface of the other side of the mounting frame 2. The winding wheel 3 is arranged below the two conveying rollers 4. Hollow fiber membranes are wound around the outer surfaces of the conveying rollers 4, the winding wheel 3 and the tensioning wheel 5. The hollow fiber membranes are arranged inside the grooves. Two vacuum covers 28 are arranged between the two conveying rollers 4. The hollow fiber membranes are arranged between the two vacuum covers 28. The ends of the two conveying rollers 4 close to the gear 31 penetrate the outer surface of the mounting frame 2 and are fixedly installed with a sprocket 13. The outer surface of the sprocket 13 is sleeved with a chain 14. The end of the winding wheel 3 close to the gear 31 penetrates the outer surface of the mounting frame 2 and is fixedly installed with a chain 14. A movable groove wheel 9, a second pulley 12 is fixedly installed on the outer surface of the rotation center of one sprocket 13, a first pulley 10 is fixedly installed on the outer surface of the rotation center of the driven groove wheel 9 close to the second pulley 12, and a first belt 11 is wound around the outer surfaces of the first pulley 10 and the second pulley 12, a support plate 6 is fixedly installed on the outer surface of the mounting frame 2 close to the driven groove wheel 9, a driving motor 7 is fixedly installed on the outer surface of one side of the support plate 6, an output end of the driving motor 7 passes through the outer surface of the support plate 6 and a driving dial 8 is fixedly installed, the driving dial 8 is meshed with the driven groove wheel 9, a transmission shaft is fixedly installed on the outer surface of the rotation center of the driving dial 8, a third pulley 15 is fixedly installed on the outer surface of the transmission shaft, a fourth pulley 17 is fixedly installed on the outer surface of the rotating shaft, and a second belt 16 is sleeved on the outer surfaces of the fourth pulley 17 and the third pulley 15.

[0023] The driving motor 7 drives the active dial 8 to rotate, the active dial 8 drives the driven groove wheel 9 to rotate intermittently, the driven groove wheel 9 drives the first pulley 10 to rotate intermittently, the first pulley 10 drives the second pulley 12 to rotate intermittently through the first belt 11, the second pulley 12 drives one of the sprockets 13 to rotate, the sprocket 13 drives another sprocket 13 to rotate through the chain 14, the two sprockets 13 drive the two conveying rollers 4 to rotate intermittently, and at the same time, the driven groove wheel 9 drives the winding wheel 3 to rotate intermittently, and the device facilitates continuous coating processing of hollow fiber membranes.

[0024] In this embodiment, a liquid storage barrel 33 is fixedly installed on the outer surface of one side of the mounting frame 2, a liquid filling valve 35 is fixedly installed on the top of the liquid storage barrel 33, a one-way air inlet valve 34 is fixedly installed on the top of the liquid storage barrel 33, an air pipe is also fixedly installed on the top of the liquid storage barrel 33, the other end of the air pipe is fixedly connected to the bottom of the compression cylinder 23, the liquid storage barrel 33 is connected to the compression cylinder 23 through the air pipe, a coating box 201 is fixedly installed on the outer surface of the other side of the mounting frame 2, two spray pipes 36 are fixedly installed on the inner wall of the coating box 201, a plurality of nozzles are arranged on the outer surfaces of the two spray pipes 36, a hollow fiber membrane is arranged between the two spray pipes 36, a cleaning dryer 202 is fixedly installed on the outer surface of the other side of the mounting frame 2, and the hollow fiber membrane is arranged inside the cleaning dryer 202.

[0025] When the piston plate 24 moves downward, the air at the bottom of the compression cylinder 23 will be compressed, and the air will enter the interior of the liquid storage barrel 33. At this time, the coating liquid will be sprayed out from the nozzle of the spray tube 36 to apply an oleophilic and hydrophobic coating to the surface of the hollow fiber membrane. When the piston plate 24 moves in the opposite direction, the air will enter the interior of the liquid storage barrel 33 through the one-way air inlet valve 34; the surface coating of the coated hollow fiber membrane will be cured, cleaned and dried through the cleaning and drying device inside the cleaning dryer 202.

[0026] A method for using an oleophilic and hydrophobic hollow fiber membrane coating and molding device comprises the following steps: S1: The operator winds the hollow fiber membrane to be coated around the outer surfaces of the conveying roller 4, the winding wheel 3 and the tensioning wheel 5, and injects a certain amount of coating liquid into the liquid storage barrel 33 by opening the liquid filling valve 35; S2: The driving motor 7 drives the active dial 8 to rotate, the active dial 8 drives the driven groove wheel 9 to rotate intermittently, and the driven groove wheel 9 drives the winding wheel 3 to rotate intermittently, and the hollow fiber membrane can be coated continuously by this device; S3: The guide column 26 and the guide groove 22 drive the column 25 to move downward, and the column 25 drives the piston plate 24 to move downward. At this time, the space above the piston plate 24 of the compression cylinder 23 is in a negative pressure state. At the same time, the inside of the vacuum cover 28 is in a negative pressure state through the air pipe. Since the hollow fiber membrane inside the vacuum cover 28 is in a negative pressure state, the pores on the outer surface of the hollow fiber membrane will release gas, and the chemical substances and impurities inside the pores will be taken out when the gas is released; S4: When the piston plate 24 moves downward, it compresses the air at the bottom of the compression cylinder 23, and the air enters the interior of the liquid storage barrel 33. At this time, the coating liquid is sprayed out from the nozzle of the spray pipe 36.

[0027] It should be noted that when the present invention is in use, the operator winds the hollow fiber membrane to be coated around the outer surfaces of the conveying roller 4, the winding wheel 3 and the tensioning wheel 5, and injects a certain amount of coating liquid (the coating liquid is a lipophilic polymer solution) into the interior of the liquid storage barrel 33 by opening the liquid filling valve 35, and drives the active dial 8 to rotate through the driving motor 7, and the active dial 8 drives the driven groove wheel 9 to rotate intermittently, and the driven groove wheel 9 drives the first pulley 10 to rotate intermittently, and the first pulley 10 drives the second pulley 12 to rotate intermittently through the first belt 11, and the second pulley 12 drives one of the sprocket wheels 13 to rotate, and the sprocket wheel 13 drives the other sprocket wheel 13 to rotate through the chain 14. The two sprockets 13 drive the two conveying rollers 4 to rotate intermittently, and at the same time, the winding wheel 3 is driven to rotate intermittently through the driven groove wheel 9, and the hollow fiber membrane is conveniently coated and processed continuously through this device; the driving dial 8 drives the transmission shaft to rotate, the transmission shaft drives the third pulley 15 to rotate, the third pulley 15 drives the fourth pulley 17 to rotate through the second belt 16, and the fourth pulley 17 drives the turntable 18 to rotate, and the turntable 18 drives one of the racks 30 to rotate intermittently upward through the driving groove 19 and the driving column 32, and the rack 30 drives the other rack 30 to move intermittently downward through the gear 31, and the two vacuum covers 28 are driven to rotate mutually through the two racks 30. The two vacuum covers 28 are close to each other and fit together. The contact surfaces of the two vacuum covers 28 are provided with rubber sealing pads. At this time, the turntable 18 continues to rotate, so that the top block 20 lifts one end of the rotating rod 21, and the other end of the rotating rod 21 moves downward, driving the column 25 to move downward through the guide column 26 and the guide groove 22, and the column 25 drives the piston plate 24 to move downward. At this time, the space above the piston plate 24 of the compression cylinder 23 is in a negative pressure state. At the same time, the interior of the vacuum cover 28 is in a negative pressure state through the air pipe. Since the hollow fiber membrane inside the vacuum cover 28 is in a negative pressure state, the pores on its outer surface will release gas, and the chemical substances and impurities inside the pores will be brought out when the gas is released. The chemicals and impurities brought out will be wiped off by the subsequent wiping sponge. Through this device, the chemicals and impurities inside the pores on the surface of the hollow fiber membrane to be coated can be removed to prevent the chemicals and impurities from affecting the adhesion and uniformity of the coating, so that the coating will not fall off easily during subsequent use; at the same time, when the piston plate 24 moves downward, the air at the bottom of the compression cylinder 23 will be compressed, and the air will enter the interior of the liquid storage barrel 33. At this time, the coating liquid will be sprayed out from the nozzle of the spray pipe 36 to coat the surface of the hollow fiber membrane with an oleophilic and hydrophobic coating. When the piston plate 24 moves in the opposite direction, the air will enter the interior of the liquid storage barrel 33 through the one-way air inlet valve 34.

[0028] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An oleophilic and hydrophobic hollow fiber membrane coating and molding device, comprising a base (1), a mounting frame (2) being fixedly mounted on the upper surface of the base (1), characterized in that: A mounting plate (29) is fixedly mounted on the top of the mounting frame (2), a T-shaped slot is formed through the outer surface of the mounting plate (29), two T-shaped sliders are symmetrically mounted on the inner walls of the T-shaped slots so as to slide upward and downward, a vacuum cover (28) is fixedly mounted on one end of the two T-shaped sliders, a rack (30) is fixedly mounted on the other end of the two T-shaped sliders, a gear (31) is rotatably mounted on the outer surface of the mounting plate (29) close to the rack (30), the gear (31) and the two racks (30) are meshed with each other, A compression cylinder (23) is fixedly mounted on the outer surface of the mounting frame (2) on the side close to the gear (31), and an air pipe joint is fixedly mounted on the outer surface of the compression cylinder (23) close to the top, and the air pipe joint is connected to the vacuum cover (28) above through an air pipe. A piston plate (24) is slidably mounted on the inner wall of the compression cylinder (23), and a spring (27) is fixedly mounted on the lower surface of the piston plate (24), and the spring (27) is arranged inside the compression cylinder (23), and the air pipe joint is arranged above the piston plate (24).

2. The oleophilic and hydrophobic hollow fiber membrane coating and molding device according to claim 1, characterized in that: A column (25) is fixedly mounted on the upper surface of the piston plate (24); a guide column (26) is fixedly mounted on the top of the column (25) through the top of the compression cylinder (23); a rotating rod (21) is rotatably mounted on the outer surface of the mounting frame (2) on a side close to the compression cylinder (23); a guide groove (22) is penetrated through the outer surface of the rotating rod (21) on one end close to the column (25); and the guide column (26) is slidably mounted on the inner wall of the guide groove (22).

3. The oleophilic and hydrophobic hollow fiber membrane coating and forming device according to claim 2, characterized in that: A rotating shaft is rotatably mounted on the outer surface of the mounting frame (2) on one side close to the gear (31), a rotating disk (18) is fixedly mounted on one end of the rotating shaft, a driving groove (19) is provided on the outer surface of one side of the rotating disk (18), a driving column (32) is fixedly mounted on the bottom of the rack (30) close to the rotating disk (18), the driving column (32) is slidably mounted on the inner wall of the driving groove (19), a top block (20) is fixedly mounted on the circumferential outer surface of the rotating disk (18), and the top block (20) abuts against the lower surface of the other end of the rotating rod (21).

4. The oleophilic and hydrophobic hollow fiber membrane coating and molding device according to claim 3, characterized in that: Two conveying rollers (4) are symmetrically rotatably mounted on the outer surface of the other side of the mounting frame (2), and the circumferential outer surfaces of the two conveying rollers (4) are each provided with a plurality of grooves. A plurality of tensioning wheels (5) are rotatably mounted on the outer surface of the other side of the mounting frame (2), and a winding wheel (3) is rotatably mounted on the outer surface of the other side of the mounting frame (2), and the winding wheel (3) is arranged below the two conveying rollers (4). Hollow fiber membranes are wound around the outer surfaces of the conveying rollers (4), the winding wheel (3) and the tensioning wheel (5), and the hollow fiber membranes are arranged inside the grooves. The two vacuum covers (28) are arranged between the two conveying rollers (4), and the hollow fiber membranes are arranged between the two vacuum covers (28).

5. The oleophilic and hydrophobic hollow fiber membrane coating and molding device according to claim 4, characterized in that: One end of each of the two conveying rollers (4) near the gear (31) passes through the outer surface of the mounting frame (2) and is fixedly mounted with a sprocket (13); the outer surface of the sprocket (13) is sleeved with a chain (14); one end of the winding wheel (3) near the gear (31) passes through the outer surface of the mounting frame (2) and is fixedly mounted with a driven groove wheel (9); a second pulley (12) is fixedly mounted on the outer surface of the rotation center of one of the sprockets (13); a first pulley (10) is fixedly mounted on the outer surface of the driven groove wheel (9) near the rotation center of one side of the second pulley (12); and a first belt (11) is wound around the outer surfaces of the first pulley (10) and the second pulley (12).

6. The oleophilic and hydrophobic hollow fiber membrane coating and molding device according to claim 5, characterized in that: A support plate (6) is fixedly mounted on the outer surface of the mounting frame (2) on one side close to the driven groove wheel (9), a driving motor (7) is fixedly mounted on the outer surface of one side of the support plate (6), an output end of the driving motor (7) passes through the outer surface of the support plate (6) and a driving dial (8) is fixedly mounted, the driving dial (8) meshes with the driven groove wheel (9), a transmission shaft is fixedly mounted on the outer surface of the rotation center of the driving dial (8), a third pulley (15) is fixedly mounted on the outer surface of the transmission shaft, a fourth pulley (17) is fixedly mounted on the outer surface of the rotating shaft, and a second belt (16) is sleeved on the outer surfaces of the fourth pulley (17) and the third pulley (15).

7. The oleophilic and hydrophobic hollow fiber membrane coating and forming device according to claim 6, characterized in that: A liquid storage barrel (33) is fixedly mounted on the outer surface of one side of the mounting frame (2), a liquid filling valve (35) is fixedly mounted on the top of the liquid storage barrel (33), a one-way air intake valve (34) is fixedly mounted on the top of the liquid storage barrel (33), an air pipe is also fixedly mounted on the top of the liquid storage barrel (33), the other end of the air pipe is fixedly connected to the bottom of the compression cylinder (23), and the liquid storage barrel (33) is connected to the compression cylinder (23) through the air pipe. A coating box (201) is fixedly mounted on the outer surface of the other side of the mounting frame (2), two spray pipes (36) are fixedly mounted on the inner wall of the coating box (201), a plurality of nozzles are arranged on the outer surfaces of the two spray pipes (36), and the hollow fiber membrane is arranged between the two spray pipes (36). A cleaning dryer (202) is fixedly mounted on the outer surface of the other side of the mounting frame (2), and the hollow fiber membrane is arranged inside the cleaning dryer (202).

8. The oleophilic and hydrophobic hollow fiber membrane coating and molding device according to claim 7, characterized in that: A wiping plate (37) is fixedly mounted on the top of the mounting frame (2), a wiping sponge is arranged on the lower surface of the wiping plate (37), and the hollow fiber membrane is arranged inside the wiping sponge.

9. A method for using an oleophilic and hydrophobic hollow fiber membrane coating and molding device, characterized in that: The oleophilic and hydrophobic hollow fiber membrane coating and molding device according to claim 8 comprises the following steps: S1: The operator winds the hollow fiber membrane to be coated around the outer surfaces of the conveying roller (4), the winding wheel (3) and the tensioning wheel (5), and injects a certain amount of coating liquid into the liquid storage barrel (33) by opening the liquid filling valve (35); S2: The driving motor (7) drives the active dial (8) to rotate, the active dial (8) drives the driven groove wheel (9) to rotate intermittently, and the driven groove wheel (9) drives the winding wheel (3) to rotate intermittently, so that the hollow fiber membrane can be coated continuously by the device; S3: The guide column (26) and the guide groove (22) drive the column (25) to move downward, and the column (25) drives the piston plate (24) to move downward. At this time, the space above the piston plate (24) of the compression cylinder (23) is in a negative pressure state. At the same time, the inside of the vacuum cover (28) is in a negative pressure state through the air pipe. Since the hollow fiber membrane inside the vacuum cover (28) is in a negative pressure state, the pores on the outer surface of the hollow fiber membrane will release gas, and the chemical substances and impurities inside the pores will be taken out when the gas is released; S4: When the piston plate (24) moves downward, the air at the bottom of the compression cylinder (23) is compressed, and the air enters the interior of the liquid storage barrel (33). At this time, the coating liquid is sprayed out from the nozzle of the spray pipe (36).

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