Reverse osmosis membrane element membrane material overlapping equipment and working method thereof

Abstract

According to the laminating equipment for the membrane material of the reverse osmosis membrane element and the working method of the laminating equipment, the flow guide screen cloth can be easily and accurately inserted into the reverse osmosis membrane material, and the laminating quality and efficiency of the flow guide screen cloth and the reverse osmosis membrane material are effectively improved. The overlapping mechanism comprises a reverse osmosis membrane material platform, a flow guide screen cloth platform, a membrane cutting mechanism, a membrane material lifting mechanism and an overlapping clamp; the reverse osmosis membrane material platform and the flow guide screen cloth platform are both mounted on the rack; the film material lifting mechanism comprises a lifting device and a clamping device; the clamping device comprises an outer top plate, an inner top plate, a turnover mechanism and a film material clamp; the lifting device is mounted on the rack; the outer top plate is mounted on the lifting device; the inner top plate is rotationally mounted on the outer top plate; the turnover mechanism is mounted on the outer top plate and is connected with the inner top plate; the film material clamp is mounted on the inner top plate; membrane cutting mechanisms are arranged above the reverse osmosis membrane material platform and the flow guide mesh cloth platform; and the overlapping clamp is mounted on the rack.

Description

Technical Field

[0001] The invention relates to a reverse osmosis membrane element material stacking device and a working method thereof. Background Art

[0002] Reverse osmosis membrane elements are a highly efficient water separation technology widely used in both domestic and industrial settings. In homes, this technology is primarily used to purify tap water, effectively removing impurities such as iron, copper, cadmium, chromium, and lead, thereby providing high-quality drinking and cooking water. They can also be used to purify cement floors and swimming pool water. In the industrial sector, reverse osmosis membrane elements are widely used in a variety of industries, including water treatment, beverage production, electronics manufacturing, chemicals, and food processing, converting wastewater, seawater, and groundwater into high-quality purified water. There are significant differences between domestic and industrial reverse osmosis membranes in terms of application scenarios, filtration performance, and structural design. Domestic membranes are characterized by their small size, lightweight, easy installation, and maintenance. Their filtration accuracy is typically 0.0001 micron, capable of removing most impurities and bacteria, but their effectiveness against pathogenic viruses and chemical contaminants is limited. In contrast, industrial reverse osmosis membranes, used in large-scale water treatment systems, have a higher filtration accuracy of 0.00001 micron, effectively removing bacteria, viruses, solvents, heavy metals, radioactive elements, and other contaminants from water, providing high-quality purified water for various industrial production scenarios.

[0003] Currently, the production process for industrial nano-reverse osmosis membrane elements, including the cutting, lamination, and rolling of key materials like membranes, is performed independently by separate machines, which then rely on manual transport to the next machine for further processing. This practice not only slows production efficiency and increases costs due to manual intervention, but also exposes insufficient automation and intelligent capabilities. More seriously, given the large size of industrial reverse osmosis membrane elements, manual handling is extremely inconvenient and can easily cause scratches or damage to the elements during handling, which directly affects the filtration performance of the finished elements and leads to increased rejection rates.

[0004] Chinese patent publication number CN118217822A discloses an automated front-end processing equipment for industrial reverse osmosis membrane elements, which can complete fully automated industrial osmotic membrane production, including a folding and cutting mechanism, a central tube loading and film pasting mechanism, and an automatic film rolling mechanism. However, this mechanism adopts a flat pasting method during the processing of reverse osmosis membrane material and guide mesh. That is, during operation, the guide mesh and reverse osmosis membrane material are both horizontal, making the insertion of the guide mesh difficult and prone to position deviation or insertion problems. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a reasonably designed reverse osmosis membrane element lamination device and its working method, so that the guide mesh can be easily and accurately inserted into the reverse osmosis membrane material, effectively improving the quality and efficiency of the lamination of the guide mesh and the reverse osmosis membrane material.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problems is: a reverse osmosis membrane element membrane material stacking device, including a reverse osmosis membrane material mold opening mechanism, a guide mesh membrane opening mechanism, a frame and a gluing mechanism; it is characterized in that: it also includes a stacking mechanism; the stacking mechanism includes a reverse osmosis membrane material platform, a guide mesh platform, a film cutting mechanism, a membrane material lifting mechanism and a stacking clamp; the reverse osmosis membrane material platform and the guide mesh platform are both installed on the frame; the membrane material lifting mechanism includes a lifting device and a clamping device, and the clamping device includes an outer top plate, an inner top plate, a flipping mechanism and a membrane material clamp; the lifting device is installed on the frame; the outer top plate is installed on the lifting device; the inner top plate is rotatably installed on the outer top plate; the flipping mechanism is installed on the outer top plate and connected to the inner top plate; the membrane material clamp is installed on the inner top plate; a film cutting mechanism is provided above the reverse osmosis membrane material platform and the guide mesh platform; the stacking clamp is installed on the frame.

[0007] The adhesive laminating mechanism of the present invention comprises an adsorption mechanism and a tape flat laminating mechanism; the tape flat laminating mechanism and the adsorption mechanism are both mounted on a frame, and the tape flat laminating mechanism is located above the adsorption mechanism.

[0008] The adsorption mechanism of the present invention comprises a suction cup and a suction cup lifting mechanism; the suction cup lifting mechanism is installed on a frame, the suction cup is lifted and installed on the frame, and the suction cup lifting mechanism is connected to the suction cup.

[0009] The film material clamp of the present invention comprises an air claw and a clamping plate. The air claw is installed on the inner top plate, and the two claws of the air claw are both installed with a clamping plate.

[0010] The film cutting mechanism described in the present invention includes a bracket, a cutter cylinder, a cutter, a pressure plate cylinder and a pressure plate; the bracket is fixed on the frame; the cutter cylinder is horizontally installed on the bracket, and the cutter is installed on the cutter cylinder; the pressure plate cylinder is vertically installed on the bracket, and the pressure plate is installed on the pressure plate cylinder.

[0011] The overlapping mechanism of the present invention further comprises a pressing roller mechanism, which is installed on the frame.

[0012] The pressing roller mechanism of the present invention comprises an upper pressing roller and a lower pressing roller. Both the upper pressing roller and the lower pressing roller are mounted on a frame and are arranged up and down.

[0013] The invention provides a steering roller installed on the reverse osmosis membrane material platform.

[0014] A method for operating a reverse osmosis membrane element lamination device, characterized in that it comprises the following steps: (1) The reverse osmosis membrane material roll on the reverse osmosis membrane material mold opening mechanism opens the film, and the reverse osmosis membrane material enters the gluing mechanism, and the gluing mechanism sticks the tape on the reverse osmosis membrane material; (2) The reverse osmosis membrane material with the tape attached enters the reverse osmosis membrane material platform. At this time, the membrane material lifting mechanism is in a low position, and the clamping mouth of the membrane material clamp faces the reverse osmosis membrane material; the front part of the reverse osmosis membrane material enters the clamping mouth of the membrane material clamp, and the membrane material clamp clamps and fixes the front part of the reverse osmosis membrane material, and then the flipping mechanism is actuated to drive the inner top plate to flip upward and be in a vertical position. At the same time, the membrane material lifting mechanism drives the clamping device to rise, and the clamping device drives the reverse osmosis membrane material to rise, and the rising reverse osmosis membrane material is in a vertical state; At the same time, the guide mesh reel on the guide mesh opening mechanism opens the film, and the guide mesh enters the guide mesh platform; after the front end of the guide mesh is clamped by the manipulator, the manipulator inserts the front end of the guide mesh into the reverse osmosis membrane material lifted by the membrane material lifting mechanism, so that the upper and lower surfaces of the front end of the guide mesh are overlapped with the reverse osmosis membrane material; the manipulator continues to grasp the guide mesh and move forward, and transports the overlapping part of the guide mesh and the reverse osmosis membrane material to the overlapping clamp, and the overlapping clamp clamps the overlapping part; the manipulator releases the guide mesh, and then After clamping the two sides of the overlapping part, the overlapping clamp releases the overlapping part, and the manipulator drives the overlapping part forward, while the membrane material lifting mechanism drives the reverse osmosis membrane material to descend; in the process of the manipulator clamping the overlapping part and moving forward, the tape on the reverse osmosis membrane material is bonded to the guide mesh, so that the reverse osmosis membrane material and the guide mesh are bonded and fixed to form a reverse osmosis membrane sheet; after the reverse osmosis membrane sheet reaches the set length, the membrane cutting mechanisms on the reverse osmosis membrane material platform and the guide mesh platform cut off the reverse osmosis membrane material and the guide mesh respectively.

[0015] The overlapping mechanism described in the present invention also includes a pressing roller mechanism, which includes an upper pressing roller and a lower pressing roller, both of which are installed on a frame, and are arranged up and down. In step (2), the robot grasps the guide mesh and moves forward, and first passes the overlapping part of the guide mesh and the reverse osmosis membrane material through the pressing roller mechanism, that is, between the upper pressing roller and the lower pressing roller, and the upper and lower layers of reverse osmosis membrane material of the overlapping part are tightly attached to the upper pressing roller and the lower pressing roller respectively. In the process of the robot clamping the overlapping part and moving forward, the upper and lower layers of reverse osmosis membrane material are tightly pressed against the upper and lower surfaces of the guide mesh by the pressure of the upper and lower pressing rollers.

[0016] Compared with the prior art, the present invention has the following advantages and effects: 1. The present invention realizes the automated production of film material clamping, lifting, cutting, tape flattening and other processes, has the advantages of high precision and high production efficiency, and significantly reduces labor costs.

[0017] 2. The membrane lifting mechanism is a device that elevates the membrane material, significantly optimizing the process of inserting the guide mesh into the membrane material. Existing technologies employ a flat-laying method, requiring both the guide mesh and the reverse osmosis membrane to be positioned horizontally during operation. This makes insertion of the guide mesh challenging and prone to misalignment or uneven insertion. The membrane lifting mechanism of the present invention elevates the membrane material, providing more convenient and efficient insertion of the guide mesh, allowing it to be easily and accurately inserted into the reverse osmosis membrane. This effectively improves the quality and efficiency of the overlapping of the guide mesh and reverse osmosis membrane, ensuring the smooth operation of the entire production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of an embodiment of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the glue-applying mechanism according to an embodiment of the present invention.

[0020] Figure 3 Schematic diagram of the structure of the film cutting mechanism according to an embodiment of the present invention.

[0021] Figure 4 for Figure 3 Schematic diagram of the side structure.

[0022] Figure 5 Schematic diagram of the structure of the clamping device according to an embodiment of the present invention.

[0023] Figure 6 for Figure 5 Schematic diagram of the side structure.

[0024] Figure 7 It is a schematic diagram of the local structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0026] 1. This embodiment of the present invention includes a frame 3, and a reverse osmosis membrane mold opening mechanism 1, a flow guide mesh membrane opening mechanism 2, a gluing mechanism 4, and a laminating mechanism 5 mounted on the frame 3. The reverse osmosis membrane mold opening mechanism 1, the gluing mechanism 4, and the laminating mechanism 5 cooperate in sequence according to the process, and the flow guide mesh membrane opening mechanism 2 and the laminating mechanism 5 cooperate in sequence according to the process.

[0027] (1) The frame 3 is the supporting structure of the entire device and is fixed to the ground. Both the reverse osmosis membrane mold opening mechanism 1 and the diversion mesh membrane opening mechanism 2 are mounted on the frame 3. The reverse osmosis membrane mold opening mechanism 1 is used to install the reverse osmosis membrane reel, while the diversion mesh membrane opening mechanism 2 is used to install the diversion mesh reel. The reverse osmosis membrane mold opening mechanism 1 is a mobile structure equipped with fixed and universal casters for easy movement to the workstation.

[0028] (2) The adhesive tape applying mechanism 4 includes an adsorption mechanism 41 and an adhesive tape applying mechanism 42 .

[0029] Adsorption mechanism 41 is used to ensure that the reverse osmosis membrane material F is applied smoothly by the tape-laying mechanism 42 through vacuum adsorption. Adsorption mechanism 41 is mounted on frame 3 and includes a suction cup 411 and a suction cup lifting mechanism 412. Suction cup lifting mechanism 412 is mounted on frame 3. Suction cup 411 is lifted and lowered on frame 3 via a guide rod, and suction cup lifting mechanism 412 is connected to suction cup 411.

[0030] The tape flattening mechanism 42 is installed on the frame 3 and is located above the adsorption mechanism 41 .

[0031] (3) The stacking mechanism 5 includes a reverse osmosis membrane material platform 51 , a flow guide mesh platform 52 , a membrane cutting mechanism 53 , a membrane material lifting mechanism 54 , a pressing roller mechanism and a stacking fixture 57 .

[0032] The reverse osmosis membrane material platform 51 and the guide mesh platform 52 are both mounted on the frame 3. A steering roller 511 is mounted on the reverse osmosis membrane material platform 51, and the reverse osmosis membrane material F is turned from horizontal to vertical by the steering action of the steering roller 511.

[0033] The film material lifting mechanism 54 includes a lifting device 541 and a clamping device. The clamping device includes a mounting plate 542, an outer top plate 543, an inner top plate 544, a flipping mechanism 545, and a film material clamp. The lifting device 541 is mounted on the frame 3. The outer top plate 543 is mounted on the lifting device 541 via the mounting plate 542. The inner top plate 544 is rotatably mounted on the outer top plate 543. The flipping mechanism 545 is mounted on the outer top plate 543 and connected to the inner top plate 544. The flipping mechanism 545 uses a swinging cylinder. The film material clamp is mounted on the inner top plate 544. The film material clamp includes an air claw 546 and a clamping plate 547. The air claw 546 is mounted on the inner top plate 544, and a clamping plate 547 is mounted on both claws of the air claw 546.

[0034] A film cutting mechanism 53 is provided above the reverse osmosis membrane material platform 51 and the guide mesh platform 52. The film cutting mechanism 53 includes a bracket 531, a cutter cylinder 532, a cutter 533, a pressure plate cylinder 534 and a pressure plate 535. The bracket 531 is fixed on the frame 3. The cutter cylinder 532 is horizontally mounted on the bracket 531, and the cutter 533 is mounted on the cutter cylinder 532. The pressure plate cylinder 534 is vertically mounted on the bracket 531, and the pressure plate 535 is mounted on the pressure plate cylinder 534. The cutter 533 is the part of the entire film cutting mechanism that directly acts on the industrial film material. Different materials and design shapes need to be selected according to the material, thickness and cutting accuracy requirements of the industrial film material. The industrial film material here is thicker and has higher hardness, so a straight-edged tool made of high-strength alloy is used.

[0035] The pressing roller mechanism comprises an upper pressing roller 55 and a lower pressing roller 56, both of which are mounted on the frame 3, and the upper pressing roller 55 and the lower pressing roller 56 are arranged up and down. A superimposing fixture 57 is mounted on the frame 3.

[0036] 2. A method for laminating reverse osmosis membrane element materials, comprising the following steps: (1) The reverse osmosis membrane material roll on the reverse osmosis membrane material mold opening mechanism 1 is opened, and the reverse osmosis membrane material F enters the gluing mechanism 4 through the conveying mechanism. The suction cup lifting mechanism 412 drives the suction cup 411 to rise and contact the lower surface of the reverse osmosis membrane material F. The suction cup 411 absorbs the reverse osmosis membrane material F, making the production more neat; then the tape flattening mechanism 42 sticks tape on the upper surface of the reverse osmosis membrane material F.

[0037] (2) The reverse osmosis membrane material F with the adhesive tape attached enters the reverse osmosis membrane material platform 51 through the conveying mechanism. At this time, the membrane material lifting mechanism 54 is in a low position, and the inner top plate 544 is in a horizontal position, so that the clamping opening of the membrane material clamp faces the reverse osmosis membrane material F, that is, the two clamping plates 547 on the air claw 546 are arranged up and down. The front part of the reverse osmosis membrane material F passes through the steering roller 511 and enters the clamping opening of the membrane material clamp horizontally, that is, between the two clamping plates 547. At this time, the front part of the reverse osmosis membrane material F is still horizontal. Ensure the flatness of the membrane material; the air claw 546 is actuated, the clamping plate 547 clamps and fixes the front of the reverse osmosis membrane material F, and then the flipping mechanism 545 is actuated, driving the inner top plate 544 to flip upward and be in a vertical position. At the same time, the membrane material lifting mechanism 54 drives the clamping device to rise, and the clamping device drives the reverse osmosis membrane material F to rise. The rising reverse osmosis membrane material F is in a vertical state, which is convenient for the insertion of the guide mesh D. At the same time, the front of the reverse osmosis membrane material F clamped by the membrane material clamp is also vertical, ensuring the flatness of the membrane material.

[0038] At the same time, the guide mesh roll on the guide mesh opening mechanism 2 opens the film, and the guide mesh D enters the guide mesh platform 52 through the conveying mechanism; Figure 7, the manipulator clamps the two sides of the front end of the guide mesh D and moves forward, inserting the front end of the guide mesh D into the reverse osmosis membrane material F lifted by the membrane material lifting mechanism 54, so that the upper and lower surfaces of the front end of the guide mesh D are overlapped with the reverse osmosis membrane material F; the manipulator continues to grasp the guide mesh D and move forward, and passes the overlapping part of the guide mesh D and the reverse osmosis membrane material F through the pressing roller mechanism, that is, between the upper pressing roller 55 and the lower pressing roller 56, and the upper and lower layers of the reverse osmosis membrane material F of the overlapping part are tightly attached to the upper pressing roller 55 and the lower pressing roller 56 respectively; after passing through the upper pressing roller 55 and the lower pressing roller 56, the manipulator continues to grasp the guide mesh D and move forward, and transports the overlapping part of the guide mesh D and the reverse osmosis membrane material F to the overlapping clamp 57, and the overlapping clamp 57 clamps the overlapping part to fix it, and at the same time, the overlapping clamp 57 presses the overlapping part The robot releases the guide mesh D, then clamps the two sides of the overlapping part, the overlapping clamp 57 releases the overlapping part, and the robot drives the overlapping part forward. At the same time, the membrane material lifting mechanism 54 drives the reverse osmosis membrane material F to descend. In the process of the robot clamping the overlapping part and moving forward, the upper and lower layers of reverse osmosis membrane material F are pressed tightly on the upper and lower surfaces of the guide mesh D by the pressure of the upper pressing roller 55 and the lower pressing roller 56. The tape on the reverse osmosis membrane material F is bonded to the guide mesh D, so that the reverse osmosis membrane material F and the guide mesh D are tightly bonded and fixed to form a reverse osmosis membrane sheet, which is used for the production of the next process. After the reverse osmosis membrane sheet reaches the set length, the membrane cutting mechanism 53 on the reverse osmosis membrane material platform 51 and the guide mesh platform 52 cuts off the reverse osmosis membrane material F and the guide mesh D respectively.

[0039] When the membrane cutting mechanism 53 is cutting, the pressure plate cylinder 534 drives the pressure plate 535 to move downward and press on the reverse osmosis membrane material F or the guide mesh D, so that the reverse osmosis membrane material F or the guide mesh D is fixed, and the cutter cylinder 532 then drives the cutter 533 to move horizontally, and the cutter 533 cuts the reverse osmosis membrane material F or the guide mesh D.

[0040] The above is a detailed introduction to the specific embodiments of the present invention. For those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention. These improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A device for laminating reverse osmosis membrane element materials, comprising a reverse osmosis membrane material mold opening mechanism, a flow guide mesh film opening mechanism, a frame, and a gluing mechanism; characterized in that: The machine also includes a stacking mechanism; the stacking mechanism includes a reverse osmosis membrane material platform, a flow guide mesh platform, a membrane cutting mechanism, a membrane material lifting mechanism, and a stacking clamp; the reverse osmosis membrane material platform and the flow guide mesh platform are both mounted on a frame; the membrane material lifting mechanism includes a lifting device and a clamping device, and the clamping device includes an outer top plate, an inner top plate, a flipping mechanism, and a membrane material clamp; The lifting device is installed on the frame; the outer top plate is installed on the lifting device; the inner top plate is rotatably installed on the outer top plate; the flipping mechanism is installed on the outer top plate and connected to the inner top plate; the membrane material clamp is installed on the inner top plate; a membrane cutting mechanism is provided above the reverse osmosis membrane material platform and the guide mesh platform; and the overlapping clamp is installed on the frame.

2. The reverse osmosis membrane element lamination device according to claim 1, characterized in that: The adhesive laminating mechanism comprises an adsorption mechanism and a tape flat laminating mechanism; the tape flat laminating mechanism and the adsorption mechanism are both installed on the frame, and the tape flat laminating mechanism is located above the adsorption mechanism.

3. The reverse osmosis membrane element lamination device according to claim 2, characterized in that: The adsorption mechanism includes a suction cup and a suction cup lifting mechanism; the suction cup lifting mechanism is installed on the frame, the suction cup is lifted and installed on the frame, and the suction cup lifting mechanism is connected to the suction cup.

4. The reverse osmosis membrane element lamination device according to claim 1, characterized in that: The film material clamp comprises an air claw and a clamping plate. The air claw is installed on the inner top plate, and the two claws of the air claw are both installed with a clamping plate.

5. The reverse osmosis membrane element lamination device according to claim 1, characterized in that: The film cutting mechanism includes a bracket, a cutter cylinder, a cutter, a pressure plate cylinder and a pressure plate; the bracket is fixed on the frame; the cutter cylinder is horizontally installed on the bracket, and the cutter is installed on the cutter cylinder; the pressure plate cylinder is vertically installed on the bracket, and the pressure plate is installed on the pressure plate cylinder.

6. The reverse osmosis membrane element lamination device according to claim 1, characterized in that: The overlapping mechanism also includes a pressing roller mechanism, which is installed on the frame.

7. The reverse osmosis membrane element lamination device according to claim 6, characterized in that: The pressing roller mechanism comprises an upper pressing roller and a lower pressing roller, both of which are mounted on a frame and are arranged up and down.

8. The reverse osmosis membrane element lamination device according to claim 1, characterized in that: A steering roller is installed on the reverse osmosis membrane material platform.

9. A method for operating the reverse osmosis membrane element lamination device according to any one of claims 1 to 8, characterized in that: The following steps are involved: (1) The reverse osmosis membrane material roll on the reverse osmosis membrane material mold opening mechanism opens the film, and the reverse osmosis membrane material enters the gluing mechanism, and the gluing mechanism sticks the tape on the reverse osmosis membrane material; (2) The reverse osmosis membrane material with the tape attached enters the reverse osmosis membrane material platform. At this time, the membrane material lifting mechanism is in a low position, and the clamping mouth of the membrane material clamp faces the reverse osmosis membrane material; the front part of the reverse osmosis membrane material enters the clamping mouth of the membrane material clamp, and the membrane material clamp clamps and fixes the front part of the reverse osmosis membrane material, and then the flipping mechanism is actuated to drive the inner top plate to flip upward and be in a vertical position. At the same time, the membrane material lifting mechanism drives the clamping device to rise, and the clamping device drives the reverse osmosis membrane material to rise, and the rising reverse osmosis membrane material is in a vertical state; At the same time, the guide mesh reel on the guide mesh opening mechanism opens the film, and the guide mesh enters the guide mesh platform; after the front end of the guide mesh is clamped by the manipulator, the manipulator inserts the front end of the guide mesh into the reverse osmosis membrane material lifted by the membrane material lifting mechanism, so that the upper and lower surfaces of the front end of the guide mesh are overlapped with the reverse osmosis membrane material; the manipulator continues to grasp the guide mesh and move forward, and transports the overlapping part of the guide mesh and the reverse osmosis membrane material to the overlapping clamp, and the overlapping clamp clamps the overlapping part; the manipulator releases the guide mesh, and then After clamping the two sides of the overlapping part, the overlapping clamp releases the overlapping part, and the manipulator drives the overlapping part forward, while the membrane material lifting mechanism drives the reverse osmosis membrane material to descend; in the process of the manipulator clamping the overlapping part and moving forward, the tape on the reverse osmosis membrane material is bonded to the guide mesh, so that the reverse osmosis membrane material and the guide mesh are bonded and fixed to form a reverse osmosis membrane sheet; after the reverse osmosis membrane sheet reaches the set length, the membrane cutting mechanisms on the reverse osmosis membrane material platform and the guide mesh platform cut off the reverse osmosis membrane material and the guide mesh respectively.

10. The working method according to claim 1, characterized in that: The overlapping mechanism also includes a pressing roller mechanism, which includes an upper pressing roller and a lower pressing roller, both of which are installed on the frame, and are arranged up and down. In step (2), the manipulator grasps the guide mesh and moves forward, and first passes the overlapping part of the guide mesh and the reverse osmosis membrane material through the pressing roller mechanism, that is, between the upper pressing roller and the lower pressing roller, and the upper and lower layers of reverse osmosis membrane material of the overlapping part are tightly attached to the upper pressing roller and the lower pressing roller respectively. In the process of the manipulator clamping the overlapping part and moving forward, the upper and lower layers of reverse osmosis membrane material are tightly pressed against the upper and lower surfaces of the guide mesh by the pressure of the upper and lower pressing rollers.

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