Polishing machine for center pipe end of reverse osmosis membrane element

Abstract

The utility model provides a reverse osmosis membrane element central tube end polisher which comprises a support, a motor, a polishing portion and a rotating portion, the motor is arranged in the middle of the support, the rotating portion is arranged on the top of the support, and the polishing portion is arranged above the rotating portion. The rotating part comprises a mounting plate, a driving roller and a driven roller, the two ends of the driving roller and the two ends of the driven roller are rotationally connected to the mounting plate, and the driving roller is in power connection with a motor; the polishing part comprises a mounting frame and a polisher, abrasive paper is arranged on the polisher, the polisher is arranged at the bottom of the mounting frame, and the mounting frame is connected to the mounting plate through a telescopic shaft. According to the center pipe polishing machine, the end of a center pipe can be accurately machined, the appearance consistency of the center pipe is guaranteed, the polishing speed and efficiency can be greatly improved, the polishing force and position can be accurately controlled, the phenomenon of uneven polishing or excessive polishing caused by improper manual operation is avoided, the polishing requirements of center pipes of different models can be met, and the polishing efficiency is improved. And the adaptability of equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of RO reverse osmosis membrane element production and manufacturing equipment, and particularly relates to a reverse osmosis membrane element center tube end polishing machine. BACKGROUND

[0002] RO reverse osmosis membrane is an artificial semi-permeable membrane with certain characteristics, which is made of a biological semi-permeable membrane, and is the core component of reverse osmosis technology. The principle of reverse osmosis technology is to separate water from other substances by using a semi-permeable membrane under the action of a solution osmotic pressure higher than the solution osmotic pressure. With people's increasing concern about drinking water safety, reverse osmosis water purifiers have gradually become the mainstream of modern household water purification products. Reverse osmosis technology uses a method higher than the solution osmotic pressure to separate water molecules from other dissolved substances through an artificial semi-permeable membrane. The pore size of RO reverse osmosis membrane is very small, which can effectively remove dissolved salts, colloids, microorganisms and organic matter in water, has the advantages of good water quality, low energy consumption, no pollution, simple process, easy operation, etc., and has been widely used in industrial wastewater treatment and household drinking water production fields.

[0003] The existing RO reverse osmosis membrane element is basically in the shape of a cylinder, and a plurality of membrane sheets are combined into a whole by nesting. Since the structure of the membrane sheet is relatively fragile, a center tube needs to be arranged inside the RO reverse osmosis membrane element to connect all the membrane sheet assemblies to play a bearing role, which can support the entire reverse osmosis membrane system and also play a buffering role to prevent the membrane sheet from failing prematurely due to hanging pressure, effectively improving the structural strength and service life of the RO reverse osmosis membrane element. Generally, the center tube is made of polypropylene, PVC, glass fiber reinforced plastic and other materials, and different materials will affect the service life and filtration effect. Therefore, the RO reverse osmosis membrane element will be customized according to the needs of the customer, and sometimes the customer will require polishing of both ends of the center tube to meet the equipment use requirements. At present, the center tube is polished by manual polishing, which results in poor consistency of the appearance of the polished center tube end, low processing efficiency, and greatly increased processing cost. The processing efficiency is low, and different materials have different requirements for polishing process during processing, which affects the service life and filtration effect. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of reverse osmosis membrane element center tube end polishing machine, utilize motor to drive driving roller, to drive center tube rotation, utilize polishing part to realize the polishing function of both ends of center tube. It is composed of support, motor, polishing part and rotating part, motor is installed in the middle part of support as power device, rotating part is as the device of placing center tube and driving center tube rotation, rotating part is installed at the top of support, polishing part is as the device of polishing center tube, and polishing part is installed above rotating part, so that polishing part can polish center tube on rotating part from above.

[0005] The rotating part is composed of mounting plates, driving rollers and driven rollers, the number of mounting plates is two, the mounting plates are symmetrically and parallelly mounted on both sides of the top of the support, for providing the positions of mounting the driving rollers and the driven rollers, the number of the driving rollers and the driven rollers is multiple, which is set according to the actual processing needs, the two ends of the driving rollers and the driven rollers are rotatably connected to the two mounting plates respectively, so that the driving rollers and the driven rollers are alternately and parallelly arranged. One pulley one is arranged at the same end of all the driving rollers, and one pulley two is mounted on the power end of the motor, two grooves are arranged on the pulley one, all the pulley ones are connected through the belt in an interlaced manner, then the pulley two is connected with the outermost pulley one through the belt, and all the pulley ones can be driven to rotate synchronously by the motor.

[0006] The polishing part is composed of a mounting frame and polishers, sandpaper is mounted on the polishers, and the central pipe is polished through the sandpaper. The number of the polishers is multiple, which is set according to the central pipe to be polished, the polishers are mounted on the bottom of the mounting frame, four extension shafts are mounted on the side of the bottom of the mounting frame, the mounting frame is connected with the mounting plate through the extension shafts, and the mounting frame can move up and down through the extension shafts to realize the pressing and loosening of the central pipe.

[0007] In order to improve the adjustable performance of the polisher, the polisher is set as a structure composed of studs, a pressing plate and a fixing seat, the number of the studs is two, the studs are vertically fixed on the top of the fixing seat, two holes are opened on the pressing plate, the two studs are respectively passed through the holes on the pressing plate, then a first nut, a second nut and a third nut are sleeved on the studs, the first nut is located above the pressing plate, the second nut is located above the first nut, and the third nut is located above the second nut, the sandpaper is wrapped on the fixing seat, the two ends of the sandpaper are pressed below the pressing plate, the sandpaper is pressed on the fixing seat through the pressing plate, and the sandpaper is replaceable. A plurality of cross plates are mounted in the middle of the mounting frame, the number of which is set according to the number of the central pipe to be processed, the setting direction of the cross plates is consistent with the driving rollers, a waist-shaped adjusting groove is opened at both ends of the cross plate, each polisher is mounted on the cross plate through the adjusting groove, the stud passes through the adjusting groove and the second nut and the third nut clamp the cross plate in the middle, the distance between the polisher and the cross plate can be adjusted by adjusting the second nut and the third nut, and the position of the polisher on the cross plate can be adjusted, so as to realize the position adjustment of the polisher.

[0008] As a telescopic shaft of a set of ways, the telescopic shaft is composed of four screw rods, springs and fourth nuts, the screw rods are vertically installed on the top of the mounting plate, so that there are two screw rods on each mounting plate, and the four screw rods form a rectangle, four through holes are formed on the mounting frame, the positions of the through holes correspond to the screw rods one by one, the springs are sleeved on the screw rods, the upper ends of the screw rods pass through the through holes on the mounting frame, the springs are located between the bracket and the mounting frame, and then the fourth nuts are installed on the upper ends of the screw rods out of the mounting frame. The mounting frame can be lifted upward by the springs, and the mounting frame can be moved downward by applying force to the mounting frame, so that the mounting frame can be moved up and down. The mounting frame is limited in position by the fourth nuts, so as to avoid the mounting frame from being detached from the screw rods.

[0009] In order to avoid the axial movement of the center pipe during processing, limiting plates are arranged at both ends of the driving roller and the driven roller, so as to limit the center pipe in the processing range.

[0010] In order to keep the mounting frame horizontal during movement and make the polishing effect uniform, vertical guide columns are arranged at both ends of the mounting plate, through holes are arranged on the mounting frame corresponding to the positions of the guide columns, the guide columns pass through the through holes on the mounting frame, so that the mounting frame is limited in position by the guide columns during movement, and the mounting frame cannot be deflected but only vertically up and down.

[0011] In order to improve the polishing effect on the center pipe, the position of the polisher is arranged above the adjacent driving roller and driven roller, so that force can be applied downward to the center pipe located between the driving roller and the driven roller, and the center pipe is prevented from being deflected by force.

[0012] In order to facilitate the operation of the mounting frame, handles are arranged on both sides of the upper end of the mounting frame, and the handles are used to operate the mounting frame.

[0013] In order to facilitate the control of the motor during operation, the control switch of the motor is installed on the side surface of the mounting frame, and the control switch is located on the side provided with the handle.

[0014] In order to accurately adjust the position of the polisher and make the polishing effect uniform, a scale line is arranged on the horizontal plate, and the scale line is located on the side of the adjusting groove. The position of the polisher can be accurately adjusted by the scale line.

[0015] The reverse osmosis membrane element center tube end grinder provided by the present utility model effectively optimizes the center tube grinding process, can realize the precise processing of the center tube end, ensure the appearance consistency of each center tube end, and thus improve the overall quality of the product. By grinding multiple center tubes at one time, the speed and efficiency of grinding can be greatly improved, the production cycle can be shortened, and the needs of large-scale production can be met. The grinding force and position can be precisely controlled, avoiding uneven grinding or excessive grinding caused by improper manual operation, and significantly improving the structural strength and service life of the center tube. The grinding position can be adjusted according to the size of the center tube to meet the grinding needs of different models of center tubes, improve the adaptability of the equipment, and can be widely promoted and used in the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be described in further detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the bracket when the mounting frame is not installed;

[0019] Figure 3 This is a schematic diagram of the top view of the overall structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the front structure of the utility model;

[0021] Figure 5 This is a side structural diagram of the utility model;

[0022] Figure 6 Schematic diagram of the grinder structure;

[0023] As shown in the figure: 1-bracket; 2-motor; 3-mounting plate; 4-driving roller; 5-driven roller; 6-pulley 1; 7-pulley 2; 8-mounting frame; 9-sandpaper; 10-stud; 11-pressure plate; 12-fixed seat; 13-first nut; 14-second nut; 15-third nut; 16-cross plate; 17-adjusting slot; 18-screw; 19-spring; 20-fourth nut; 21-limiting plate; 22-guide column; 23-handle; 24-control switch. DETAILED DESCRIPTION

[0024] To further illustrate the concept of the present invention, the following will further describe the specific implementation of the present invention with reference to the accompanying drawings:

[0025] A reverse osmosis membrane element center tube end grinding machine, such as Figure 1As shown, it includes a bracket 1, a motor 2, a grinding part and a rotating part. The bracket 1 adopts a hollow frame with an upper end surface. A platform for installing the motor 2 is provided in the middle part of the bracket 1. The motor 2 is installed on the platform, and the rotating part is installed on the upper end surface of the bracket 1.

[0026] Take two long boards as mounting plates 3, make 12 holes on the mounting plates 3, install bearings in the holes, then take 12 long sticks, 6 of which are active rollers 4 and 6 of which are passive rollers 5, connect the two ends of the active rollers 4 and passive rollers 5 to the bearings on the two mounting plates 3 respectively, and stagger the active rollers 4 and passive rollers 5 during installation so that they can rotate freely through the bearings, then fix the mounting plates 3 on the upper end face of the bracket 1, keeping the active rollers 4 and passive rollers 5 horizontal. Install a pulley 6 with two grooves on the same end of all passive rollers 5, so that the pulley is located outside the mounting plate 3, and the active roller 4 can be driven to rotate through the pulley, and use a belt to connect all the pulleys 6. When connecting, stagger the belts in the grooves at different positions of the pulley 6, such as Figure 2 As shown, the pulley 2 7 is then installed on the power shaft of the motor 2. Since the pulley 1 6 at the edge only needs one belt to connect with the adjacent pulley, a groove is left, and the pulley 2 7 and the pulley 1 6 at the edge can be connected with a belt, as shown in FIG. Figure 5 shown.

[0027] Use a quadrilateral frame as the mounting frame 8. The shape of the mounting frame 8 corresponds to the spacing and length of the mounting plate 3. Let the two sides of the mounting frame 8 be located above the mounting plate 3. Drill four evenly distributed holes on the two side edges of the mounting frame 8 corresponding to the mounting plate 3. Then drill screw holes on the upper end surface of the mounting plate 3 corresponding to the positions of the holes drilled by the mounting frame 8. Take four screws 18 and four guide pillars 22, unscrew threads at the lower ends of the guide pillars 22, and install the four guide pillars 22 in the holes at the outer ends of the mounting plate 3 respectively. The remaining four screws 18 are installed in the remaining holes of the mounting plate 3. A spring 19 is respectively provided on the screw 18. Then, the screw 18 and the guide pillar 22 are passed through the holes on the mounting frame 8. The mounting frame 8 is installed above the mounting plate 3. Then, the fourth nut 20 is installed on the upper end of the screw 18 that passes through the mounting frame 8 to fix the mounting frame 8. Then take 6 long plates as transverse plates 16, weld the transverse plates 16 in the middle of the mounting frame 8, make the direction of the transverse plates 16 consistent with the active roller 4 and the driven roller 5, and make the transverse plates 16 located above the middle of the adjacent active roller 4 and the driven roller 5, then open waist-shaped holes at both ends of the transverse plates 16 as adjustment slots 17, as shown in the figure. Figure 3 shown.

[0028] Take a square block as the fixing seat 12, weld two vertical studs 10 on the upper end of the fixing seat 12, take a plate as the pressure plate 11, open two holes on the pressure plate 11 so that the studs 10 can pass through the holes on the pressure plate 11, then put the pressure plate 11 on the stud 10, and then put two nuts on each stud 10, which serve as the first nut 13 and the second nut 14 from bottom to top. Take the sandpaper 9 and wrap it around the fixing seat 12 from the bottom, let the two sides of the sandpaper 9 wrap around the upper end of the fixing seat 12, press the pressure plate 11 against the end of the sandpaper 9, and then tighten the first nut 13, so that the first nut 13 presses the pressure plate 11 to fix the sandpaper 9. Then pass the upper end of the stud 10 through the adjustment hole on the horizontal plate 16, and then put the third nut 15 on the part of the stud 10 that passes through the upper end of the horizontal plate 16 to form a grinder, such as Figure 6 As shown. Install a grinder in each of the adjustment holes according to the above method to obtain a complete grinding part, as shown Figure 5 shown.

[0029] A circular plate with a larger diameter is installed at both ends of the active roller 4 and the driven roller 5 as a limit plate 21, a handle 23 is installed on each side of the upper end of the mounting frame 8, and a control switch 24 is installed on the side of the mounting frame 8 so that the control switch 24 is located on the side with the handle 23, and the control switch 24 is connected to the motor 2. A scale line is engraved on the side of the upper end of the adjustment slot 17.

[0030] When performing the grinding process, adjust the grinder according to the length of the center tube and the grinding position. First, loosen the second nut 14 and the third nut 15 on the stud 10, then adjust the position of the grinder. After adjustment, tighten the second nut 14 and the third nut 15 to clamp the cross plate 16 inside, and adjust all the grinders into place. Then, place the center tube between the active roller 4 and the driven roller 5. Then, hold the handle 23 with both hands and press the mounting frame 8 downward so that the grinder contacts the end face of the center tube. Then, manually press the control switch 24 to start the motor 2, rotate the active roller 4 and the center tube, and use the sandpaper 9 to grind the center tube. The sandpaper 9 on the grinder can be replaced according to the required grinding roughness. The sandpaper 9 can be loosened or tightened by adjusting the tightness of the first nut 13.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various changes and variations are possible. Any modifications, equivalent replacements, improvements, etc. made using the present invention should be included in the scope of protection of the present invention.

Claims

1. A reverse osmosis membrane element central tube end grinding machine, characterized by: It comprises a bracket (1), a motor (2), a grinding part and a rotating part, wherein the motor (2) is arranged in the middle of the bracket (1), the rotating part is arranged at the top of the bracket (1), and the grinding part is arranged above the rotating part; The rotating part includes a mounting plate (3), an active roller (4) and a driven roller (5), the number of the mounting plates (3) is two and they are arranged in parallel on both sides of the top of the bracket (1), the number of the active roller (4) and the driven roller (5) is multiple and they are arranged in parallel, the two ends of the active roller (4) and the driven roller (5) are respectively rotatably connected to the two mounting plates (3), the active roller (4) and the driven roller (5) are alternately arranged, the same end of all the active rollers (4) is respectively provided with a pulley 1 (6), the power end of the motor (2) is provided with a pulley 2 (7), all the pulleys 1 (6) are interlaced and linked by belts, and the pulley 2 (7) is connected to the outermost pulley 1 (6) by a belt; The grinding part comprises a mounting frame (8) and a grinder, wherein the grinder is provided with sandpaper (9), and the number of grinders is multiple and they are mounted on the bottom of the mounting frame (8), and four telescopic shafts are provided on the side of the bottom of the mounting frame (8), and the mounting frame (8) is connected to the mounting plate (3) via the telescopic shafts.

2. The reverse osmosis membrane element central tube end grinding machine according to claim 1, characterized in that: The sander comprises a stud (10), a pressure plate (11) and a fixing seat (12), wherein the number of the studs (10) is two, the studs (10) are vertically arranged on the top of the fixing seat (12), two holes are opened on the pressure plate (11), the two studs (10) pass through the holes on the pressure plate (11) respectively, a first nut (13), a second nut (14) and a third nut (15) are sleeved on the stud (10), the first nut (13) is located above the pressure plate (11), the second nut (14) is located above the first nut (13), and the third nut (15) is located above the second nut (14), and the sandpaper (9) is covered on the fixing seat (12) and the upper ends are pressed by the pressure plate (11); A plurality of transverse plates (16) are provided in the middle of the mounting frame (8), the length direction of the transverse plates (16) being consistent with the length direction of the active roller (4), waist-shaped adjustment grooves (17) are provided at both ends of the transverse plates (16), and a grinder is provided on each adjustment groove (17). The stud (10) passes through the adjustment groove (17) and the second nut (14) and the third nut (15) sandwich the transverse plate (16) in the middle.

3. The reverse osmosis membrane element central tube end grinding machine according to claim 2, characterized in that: The telescopic shaft comprises a screw rod (18), a spring (19) and a fourth nut (20), wherein the number of the screw rods (18) is four, two screw rods (18) are vertically arranged on the top of each mounting plate (3), and the four screw rods (18) are arranged in a rectangular shape; a through hole is provided on the mounting frame (8) at a position corresponding to the screw rod (18), the upper end of the screw rod (18) passes through the through hole on the mounting frame (8) and extends above the mounting frame (8), the spring (19) is sleeved on the screw rod (18) and is located between the bracket (1) and the mounting frame (8), and the upper end of the screw rod (18) is provided with a fourth nut (20).

4. The reverse osmosis membrane element central tube end grinding machine according to claim 3, characterized in that: Limiting plates (21) are provided at both ends of the active roller (4) and the driven roller (5).

5. The reverse osmosis membrane element central tube end grinding machine according to claim 4, characterized in that: Vertical guide posts (22) are provided at both ends of the mounting plate (3), and through holes are provided at positions corresponding to the guide posts (22) on the mounting frame (8), and the guide posts (22) pass through the through holes on the mounting frame (8).

6. The reverse osmosis membrane element central tube end grinding machine according to claim 5, characterized in that: The grinder is positioned just above the middle of the adjacent active roller (4) and the driven roller (5).

7. The reverse osmosis membrane element central tube end polishing machine according to claim 6, characterized in that: Handles (23) are provided on both sides of the upper end of the mounting frame (8).

8. The reverse osmosis membrane element central tube end polishing machine according to claim 7, characterized in that: A control switch (24) is provided on the side of the mounting frame (8), and the control switch (24) controls the motor (2). The control switch (24) is located on the side where the handle (23) is provided.

9. The reverse osmosis membrane element central tube end polishing machine according to claim 8, characterized in that: Scale lines are provided on the horizontal plate (16) on the side of the adjustment groove (17).

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