A fully automatic cutting production line for RO membrane filtration units

Abstract

The present invention relates to a fully automatic cutting production line for RO membrane filtration units in the field of filter element preparation technology, which mainly includes a frame, a feeding mechanism, a folding mechanism, an indentation mechanism and a cutting mechanism. The fully automatic cutting production line for RO membrane filtration units provided by the present invention adopts the method of shaping the RO membrane sheet by indenting the folding line and then cutting the whole into a filtration unit, so that the production line does not need to perform slitting operations on the RO membrane cylinder in advance according to the model of the filtration unit, and cleverly integrates the RO membrane pre-slitting process into the filtration unit forming process, which simplifies the production process as a whole and improves the production efficiency. Moreover, by forming a right-angle position relationship between the edges through two groups of material machines, the placement position of the RO membrane cylinder can be selected according to the model and size of the filtration unit, so that the same production line can perform longitudinal cutting of the RO membrane and transverse cutting of the RO membrane, which greatly improves the utilization rate of materials, saves energy and reduces consumption, and significantly reduces production costs.

Description

Technical Field

[0001] The invention relates to the technical field of filter element preparation, and in particular to a fully automatic cutting production line for RO membrane filtration units. Background Art

[0002] Reverse osmosis membrane elements (RO membrane elements) are the core components of water purification. The rolled reverse osmosis membrane elements are composed of a central water pipe, a water purification membrane group and a sealing plastic film. The water purification membrane group is composed of a pure water guide cloth, a reverse osmosis membrane and an inlet water guide net. The reverse osmosis membrane is folded, the inlet water guide net is located between the inner surfaces of the folded reverse osmosis membrane, the pure water guide cloth is located between the outer surfaces of the folded reverse osmosis membrane, and the sides of the membrane are sealed with glue. After the water purification membrane group is wrapped around the central water production pipe, the entire outer surface is wrapped with a sealing plastic film.

[0003] At present, before the production of the filtration unit formed by the reverse osmosis membrane sheet and the spacer net wrapped after folding, it is difficult to achieve flexible production of the current reverse osmosis membrane production, that is, the models and sizes of the reverse osmosis membrane are standard. After purchasing the reverse osmosis membrane in rolls, the manufacturers of reverse osmosis membrane elements generally pre-slit according to the order model, that is, the rolled reverse osmosis membrane is cut into multiple small-sized reverse osmosis membrane cylinders by longitudinal cutting, and then installed on the material machine of the automated production line to cut into sheets of corresponding sizes by cross-cutting, and then compositely wrapped with the spacer net and guide cloth to produce the reverse osmosis membrane element. For example, the publication number CN113304615A discloses a fully automatic production equipment and processing technology of RO membrane filter element, including a frame, a first placement table and a second placement table, the frame is provided with a feeding mechanism, a stacking mechanism, and a rolling mechanism; the feeding mechanism includes a screen feeding and cutting device, a membrane feeding and cutting device, a guide cloth feeding and cutting device and a central tube clamping and rotating device; the stacking mechanism includes a first manipulator, a second manipulator, a third manipulator and a folding device; the rolling mechanism includes an oblique feeding device, a welding device, an outer guide cloth feeding device and a film pasting device, and the frame is also provided with a translation conveying device. This invention is a fully automated production using the above method, which improves the production efficiency, but there are still problems such as cumbersome procedures and poor efficiency caused by the need to pre-cut reverse osmosis membrane rolls, screen rolls, etc., as well as material loss during the pre-cutting process. Summary of the invention

[0004] In view of the defects in the prior art, the object of the present invention is to provide a fully automatic cutting production line for RO membrane filtration units.

[0005] According to the present invention, a fully automatic cutting production line for RO membrane filtration units is provided, comprising:

[0006] The frame includes a slide rail, a stacking platform, an indentation platform and a bearing frame, wherein the bearing frame is mounted on the slide rail to form a corridor-type structure, the slide rail is L-shaped, including a first slide rail and a second slide rail, the stacking platform is slidably arranged on the first slide rail, and the indentation platform is slidably arranged on the second slide rail;

[0007] The feeding mechanism includes a first feeder, a second feeder and a stacking robot. The first feeder is located at the front end of the first slide rail, and the second feeder and the stacking robot are respectively located on both sides of the first slide rail. When cutting longitudinally, the first feeder installs the RO membrane cylinder, and the second feeder installs the spacer cylinder. When cutting transversely, the first feeder installs the spacer cylinder, and the second feeder installs the RO membrane cylinder. The cut RO membrane sheets and spacer sheets are sequentially laid on the stacking table by the stacking robot. The spacer sheet is half the length of the RO membrane sheet, and the spacer sheet is limited to one side of the middle line of the RO membrane sheet in an edge-aligned manner.

[0008] The folding mechanism comprises two groups of folding manipulators installed on the columns on both sides of the load-bearing frame. The stacking platform moves a predetermined distance toward the second slide rail. The two groups of folding manipulators clamp the two sides of the RO membrane respectively. The stacking platform continues to move forward a predetermined distance. The two groups of folding manipulators complete the folding of the RO membrane by first rising and then falling.

[0009] The creasing mechanism comprises a shifting robot and a pressing roller, wherein the shifting robot clamps the two sides near the folding point of the RO diaphragm and drags it to the creasing platform, and the pressing roller creasingly processes the RO diaphragm to form a folding line, and the folded and creasing RO diaphragm and the spacer mesh wrapped therein form a pre-cut filter unit, and after the creasing platform moves a predetermined distance along the second slide rail, the pre-cut filter unit enters in a manner that the folding line is perpendicular to the cutting opening of the cutting mechanism, and the cutting mechanism cuts the pre-cut filter unit into a plurality of filter units.

[0010] In some embodiments, the stacking table includes a base, a clamping mechanism and a suction cup, two groups of the clamping mechanism are symmetrically arranged on both sides of the center line of the base, the clamping mechanism includes a clamping drive cylinder and a pressure rod, the suction cup is located at the four corners of the base, the suction cup adsorbs the four corners of the RO membrane, and after the spacer mesh is laid on the RO membrane, the clamping drive cylinder drives the pressure rod to press the spacer mesh at one end close to the center line of the RO membrane.

[0011] In some embodiments, the stacking robot includes a six-axis robot and a first driving jaw, and a plurality of groups of the first driving jaws are connected side by side to the end of the six-axis robot.

[0012] In some embodiments, the folding robot includes a lifting mechanism, a telescopic mechanism and a clamping mechanism. The lifting mechanism is slidably mounted on a column of the load-bearing frame, the telescopic mechanism is drivingly connected to the lifting mechanism, the clamping mechanism is drivingly connected to the telescopic mechanism, and the clamping mechanism is provided with a second driving jaw for clamping.

[0013] In some embodiments, the two groups of folding robots are installed on two staggered upright posts of the load-bearing frame, and the side projections of the two groups of folding robots are face to face.

[0014] In some embodiments, the creasing mechanism further includes a transfer mechanism, which is slidably mounted on a top frame of the load-bearing frame, and the shifting robot and the pressing roller are connected to the transfer mechanism side by side.

[0015] In some embodiments, the indentation mechanism also includes a limiting mechanism, which is connected to the transfer mechanism and located between the shift robot and the pressure roller. The limiting mechanism includes a limiting drive cylinder and a limiting column. The limiting drive cylinder drives the limiting column to rise and fall, and the limiting column is pressed at a predetermined distance in front of the folding line of the RO membrane.

[0016] In some embodiments, the cutting mechanism includes a cutting machine and a traction robot, the cutting machine straddles the second slide rail, the traction robot is located outside the cutting machine, the creasing table moves a predetermined distance along the second slide rail, the pre-cut filter unit enters with the folded creasing line perpendicular to the cutting direction of the cutting machine, the traction robot clamps and pulls the pre-cut filter unit to move a predetermined distance, and the pre-cut filter unit is cut into multiple filter units.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The fully automatic cutting production line for RO membrane filtration units provided by the present invention uses the folding line of the RO membrane sheet to shape the folding line and then cut the entire unit into filtration units, so that the production line does not need to cut the RO membrane cartridge in advance according to the model of the filtration unit, and cleverly integrates the RO membrane pre-cutting process into the filtration unit forming process, which simplifies the production process as a whole and improves the production efficiency. Moreover, by forming a right-angle position relationship between the edges through two sets of material machines, the placement position of the RO membrane cartridge can be selected according to the model and size of the filtration unit, so that the same production line can perform both longitudinal and transverse cutting of the RO membrane, which greatly improves the utilization rate of materials, saves energy and reduces consumption, and significantly reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the fully automatic cutting production line of the RO membrane filtration unit of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the feeding mechanism of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a stacking table in a rack of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the stacking table of the present invention running toward the folding mechanism;

[0024] Figure 5 It is a structural schematic diagram of the folding robot of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the indentation mechanism of the present invention when it runs to the indentation platform;

[0026] Figure 7 It is a structural schematic diagram of the indentation mechanism of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the cutting mechanism of the present invention;

[0028] Fig. 9 It is a schematic diagram of the rear view structure of the cutting mechanism of the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the production line combined with the guide part of the present invention. DETAILED DESCRIPTION

[0030] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] This embodiment provides a fully automatic cutting production line for RO membrane filtration units, such as Figure 1-10 As shown, it mainly includes a frame 100, a feeding mechanism 200, a folding mechanism 300, a creasing mechanism 400 and a cutting mechanism 500.

[0032] The rack 100 includes an L-shaped slide rail 110, a load-bearing frame 140 mounted on the slide rail 110, and a stacking table 120 and an indentation table 130 slidably mounted on the slide rail 110. The slide rail 110 includes a first slide rail 111 and a second slide rail 112, and the first slide rail 111 and the second slide rail 112 form an L-shaped slide rail 110. The load-bearing frame 140 is a frame structure, and the two are mounted on the slide rail 110 to form an L-shaped corridor structure. The stacking table 120 is slidably connected to the first slide rail 111, as shown in FIG. Figure 3 As shown, the stacking platform 120 mainly includes a base 121, a clamping mechanism 122 and a suction cup 123. The base 121 is mainly composed of a substrate and a driving mechanism located below the substrate, and the driving mechanism drives the substrate to move linearly along the first slide rail 111. The clamping mechanism 122 mainly includes a clamping drive cylinder 1221 and a pressure rod 1222, and the pressure rod 1222 is drivingly connected to the clamping drive cylinder 1221. The clamping drive cylinder 1221 is connected to the substrate of the base 121 through a fixed frame, and the clamping drive cylinder 1221 drives the pressure rod 1222 to clamp the spacer mesh 710. In this embodiment, the drive cylinder 1221 is a composite drive cylinder formed by two drive modules through a driving connection, and has a drive pressure rod 1222 that can move up and down and telescopically move left and right, so that it can make way when laying the RO membrane 610 and the spacer mesh 710, and then shift to the top for clamping after laying. The indentation table 130 is mainly composed of a bearing plate and a driving mechanism located below the bearing plate, and the bearing plate moves linearly along the second slide rail 112 through the driving mechanism connected thereto. The stacking table 120 slidably connected to the first slide rail 111 and the indentation table 130 slidably connected to the second slide rail 112 have a right-angled movement direction.

[0033] like Figure 2As shown, the feeding mechanism 200 mainly includes a first feeder 210, a second feeder 220 and a stacking robot 230. The first feeder 210 is placed at the front end of the first slide rail 111, and the second feeder 220 is placed on the side of the first slide rail 111. The first feeder 210 and the second feeder 220 are arranged adjacent to each other, and the two are basically at a right angle. The first feeder 210 and the second feeder 220 are both used as feeding mechanisms for RO membranes and spacers, and have basically the same mechanism settings, mainly consisting of a feeding rack 201, an air expansion shaft 202 located on the feeding rack for installing the RO membrane cylinder 600 or the spacer cylinder 700, a cutting mechanism 203 for cutting, and a matching receiving barrel and other accessory structures. The placement positions of the RO membrane cylinder 600 and the mesh cylinder 700 are determined according to the different cutting directions of the RO membrane, that is, when the RO membrane cylinder 600 is installed on the first feeder 210, the mesh cylinder 700 is installed on the second feeder 220, or, when the mesh cylinder 700 is installed on the first feeder 210, the RO membrane cylinder 600 is installed on the second feeder 220. The stacking manipulator 230 is arranged on the other side of the first slide rail 111, and is arranged opposite to the second feeder 220. In this embodiment, the stacking manipulator 230 is mainly composed of a six-axis robot 231 and a first driving jaw 232, and a plurality of first driving jaws 232 are arranged side by side at the end of the six-axis robot 231. The six-axis robot 231 drives the first driving jaw 232 to realize multi-dimensional movement, and then the jaws of the first driving jaw 232 clamp the RO membrane sheet 610 or the mesh sheet 710. Then they are laid on the stacking table 120 in sequence.

[0034] like Figure 4-5As shown, the folding mechanism 300 mainly includes two groups of folding manipulators 310, and the two groups of folding manipulators 310 are respectively installed on the two columns of the load-bearing frame 140 located on both sides of the first slide rail 111. The folding manipulator 310 is mainly composed of a lifting mechanism 311, a telescopic mechanism 312 and a clamping mechanism 313. The lifting mechanism 311 includes a crawler transmission structure and a lifting drive machine, the lifting drive machine is installed on the column, the crawler transmission structure is slidably connected to the column, and the lifting drive machine drives the crawler transmission structure to move up and down. The telescopic mechanism 312 is connected to the crawler transmission structure and moves up and down with it. The clamping mechanism 313 includes a clamping drive cylinder and a second driving clamp 3131 connected to the drive, and the clamping drive cylinder is connected to the telescopic shaft of the telescopic mechanism 422. The telescopic mechanism 312 drives the clamping mechanism 313 to telescope horizontally, and the clamping drive cylinder drives the second driving clamp 3131 to clamp the side of the RO diaphragm 610. In this embodiment, two groups of folding manipulators 310 are installed on two columns that are staggered in the horizontal direction. After installation, the projections of the two groups of folding manipulators 310 toward the side of the first slide rail 111 are face-to-face, that is, one group of folding manipulators 310 faces the first feeder 210, while the other group of folding manipulators 310 faces away from the first feeder. By installing the two groups of folding manipulators 310 on two staggered columns, the centering effect of the second driving jaws 3131 of the two groups of folding manipulators 310 can be improved, avoiding the error caused by assembly when installed on two columns in the same row, thereby improving the alignment effect of the RO membrane 610 after being folded.

[0035] like Figure 6-7As shown, the creasing mechanism 400 mainly includes a shifting manipulator 420 for pulling the preliminarily folded RO membrane 610 and the spacer mesh 710 wrapped in the RO membrane onto the creasing platform 130, and a pressing roller 430 for hot pressing and shaping the folding line of the RO membrane 610. The shifting manipulator 420 and the pressing roller 430 are connected to the transfer mechanism 410. The transfer mechanism 410 mainly consists of a horizontal drive motor 411, a lifting drive motor 412 and a bracket 413. The lifting drive motor 412 is slidably connected to the top sliding bar of the load-bearing frame 140, and the horizontal drive motor 411 drives the lifting drive motor 412 to move horizontally along the sliding bar at the top of the load-bearing frame 140. The bracket 413 is driven and connected to the lifting drive motor 412, and the lifting drive motor 412 drives the bracket 413 to move up and down. The pressure roller 430 is connected to the bracket 413 and moves synchronously therewith. Two groups of shifting manipulators 420 are symmetrically installed on both sides of the bracket 413, and the shifting manipulators 420 are located at the front end of the pressure roller 430. The shifting manipulators 420 clamp the RO diaphragm 610 at a predetermined position in front of the folding line, and then the pressure roller 430 performs hot pressing on the RO diaphragm 610 to form the folding line. In this embodiment, the indentation mechanism 400 also includes a limiting mechanism 440, which mainly includes a limiting driving cylinder 441 and a limiting column 442. The limiting column 442 is located between the pressure roller 430 and the shifting manipulator 420. The limiting column 442 is connected to the bracket 413 through the limiting driving cylinder 441, and the limiting driving cylinder 441 drives the limiting column 442 to move up and down.

[0036] like Figure 8-9 As shown, the cutting mechanism 500 is mainly used to cut the pre-cut filter unit after the fold line indentation is formed, and cut it into a filter unit of a predetermined size. In this embodiment, the cutting mechanism 500 mainly includes a cutting machine 510 and a pulling manipulator 520. The cutting machine 510 spans across the second slide rail 112, and the pulling manipulator 520 is arranged behind the cutting machine 510. At this time, notches 511 are provided on both sides of the cutting machine 510. The two pulling mechanical clamps 521 of the pulling manipulator 520 can extend into the notches 511 to clamp the pre-cut filter unit for pulling.

[0037] The working principle of the fully automatic cutting production line of RO membrane filtration units provided in this embodiment is as follows: according to the model size of the RO membrane cylinder 600 and the model size of the filter unit to be cut out, the RO membrane is cut longitudinally or transversely. The so-called RO membrane longitudinal cutting refers to the cutting along the direction parallel to the central axis of the RO membrane when cutting into the filter unit, and the so-called RO membrane transverse cutting refers to the cutting along the direction perpendicular to the central axis of the RO membrane when cutting into the filter unit. When cutting longitudinally, the RO membrane cylinder 600 is installed on the first feeder, and the spacer cylinder 700 is installed on the second feeder 220; when cutting transversely, the RO membrane cylinder 600 is installed on the second feeder 220 located on the side of the first slide rail 111, and the spacer cylinder 700 is installed on the first feeder 210.

[0038] Taking the cross-cutting of RO membrane as an example, the second feeder 220 is first started, and the RO membrane on the RO membrane cylinder 600 extends from the cutting opening of the second feeder 220. The first driving jaw 232 of the stacking robot 230 clamps the RO membrane and pulls it out a predetermined distance. The second feeder 220 performs the cutting action, and the cut RO membrane sheet 610 is laid on the stacking table 120 through the first driving jaw 232, and the RO membrane sheet 610 is fixed by the suction cups 123 located at the four corners. The first feeder 210 is started, and the first driving jaw 232 lays the cut spacer mesh sheet 710 on the RO membrane sheet 610 through the action basically the same as the cutting of the RO membrane sheet 610. The size relationship between the cut spacer mesh sheet 710 and the RO membrane sheet 610 is: the width of the two is the same, and the length of the spacer mesh sheet 710 is half the length of the RO membrane sheet 610. After laying, one end of the spacer mesh 710 is aligned with one end of the RO diaphragm 610, and the other end is located at the middle line of the RO diaphragm 610. The pressing rod 1222 is driven by the pressing drive cylinder 1221 to press on both sides of the spacer mesh 710 close to the central axis of the RO diaphragm 610. The stacking platform 120 moves to a predetermined position toward the folding mechanism 300, and the second driving jaws 3131 of the two groups of folding manipulators 310 clamp the two sides of the RO diaphragm 610 at the other end of the spacer mesh 710. The stacking platform 120 continues to move forward, and the two groups of folding manipulators 310 fold the RO diaphragm 610 in half by first raising and then lowering. The two ends of the RO diaphragm 610 are basically aligned, and the spacer mesh 710 is clamped in the middle of the RO diaphragm 610. At this time, after the transfer mechanism 410 moves to the predetermined position, the third driving claw of the shifting manipulator 420 clamps the predetermined position in front of the folding line of the folded RO diaphragm 610, and the transfer mechanism 410 moves toward the direction of the second slide rail 112, and the shifting manipulator 420 drags the RO diaphragm 610 with the spacer sheet 710 onto the indentation table 130. First, the lifting driving cylinder 441 in the limiting mechanism 440 drives the limiting column 442 to fall until the profile of the limiting column 442 is pressed on the predetermined position in front of the folding line of the RO diaphragm 610, and then the lifting driving motor 412 of the transfer mechanism 410 drives the bracket 413 to move down a predetermined distance, and the pressing roller 430 is pressed on the folding line of the RO diaphragm 610, and the pressing roller 430 generates heat through resistance or electromagnetic to complete the hot pressing shaping of the folding line of the RO diaphragm 610. The mesh sheet 710 is clamped between the folded RO membrane sheets 610 to form a pre-cut filter unit. After the pre-cut filter unit moves to the cutter 510 along the second slide rail 112 with the creasing table 130, the two pulling mechanical clamps 521 of the traction robot 520 extend into the notch 511 to clamp the two ends of the RO membrane sheet 610 of the pre-cut filter unit. After the pre-cut filter unit is pulled a predetermined distance by the pulling robot 520, the cutter 510 performs cutting. Finally, the pre-cut filter unit is cut into multiple filter units through multiple pulling of the pulling robot 520.

[0039] The fully automatic cutting production line for RO membrane filtration units provided in the present embodiment uses the folding line of the RO membrane sheet to shape the folding line and then cut the entire piece into filtration units, so that the production line does not need to cut the RO membrane cartridge in advance according to the model of the filtration unit, and cleverly integrates the RO membrane pre-cutting process into the filtration unit forming process, which simplifies the production process as a whole and improves the production efficiency. By forming a right-angle position relationship between the edges through two sets of material machines, the placement position of the RO membrane cartridge can be selected according to the model and size of the filtration unit, so that the same production line can perform both longitudinal and transverse cutting of the RO membrane, which greatly improves the utilization rate of materials, saves energy and reduces consumption, and significantly reduces production costs.

[0040] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A fully automatic cutting production line for RO membrane filtration units, characterized in that: include: A frame (100) comprises a slide rail (110), a stacking platform (120), an indentation platform (130) and a load-bearing frame (140); the load-bearing frame (140) is mounted on the slide rail (110) to form a corridor-type structure; the slide rail (110) is L-shaped and comprises a first slide rail (111) and a second slide rail (112); the stacking platform (120) is slidably mounted on the first slide rail (111), and the indentation platform (130) is slidably mounted on the second slide rail (112); The feeding mechanism (200) comprises a first feeder (210), a second feeder (220) and a stacking robot (230), wherein the first feeder (210) is located at the front end of the first slide rail (111), and the second feeder (220) and the stacking robot (230) are respectively located on both sides of the first slide rail (111). When cutting longitudinally, the first feeder (210) is installed with an RO membrane cylinder (600), and the second feeder (220) is installed with a screen cylinder (700). When cutting transversely, the first feeder (210) is installed with an RO membrane cylinder (600). The first material machine (210) installs the spacer mesh cylinder (700), the second material machine (220) installs the RO membrane cylinder (600), the cut RO membrane sheets (610) and the spacer mesh sheets (710) are sequentially laid on the stacking platform (120) by the stacking robot (230), the spacer mesh sheets (710) are one-half the length of the RO membrane sheets (610), and the spacer mesh sheets (710) are limited to one side of the middle line of the RO membrane sheets (610) in an edge-aligned manner; The folding mechanism (300) comprises two groups of folding manipulators (310) mounted on the columns on both sides of the load-bearing frame (140); the stacking platform (120) moves a predetermined distance toward the second slide rail (112); the two groups of folding manipulators (310) respectively clamp the two sides of the RO membrane (610); while the stacking platform (120) continues to move forward a predetermined distance, the two groups of folding manipulators (310) complete the folding of the RO membrane (610) by first raising and then lowering; The creasing mechanism (400) comprises a shifting robot (420) and a pressing roller (430), wherein the shifting robot (420) clamps two sides of the RO membrane (610) close to the folded part and drags the RO membrane (610) onto the creasing platform (130), wherein the pressing roller (430) performs a creasing treatment on the RO membrane (610) to form a fold line, wherein the folded and creasing RO membrane (610) and the spacer mesh (710) wrapped therein form a pre-cut filter unit, and after the creasing platform (130) moves a predetermined distance along the second slide rail (112), the pre-cut filter unit enters the cutting opening of the cutting mechanism (500) in a manner such that the fold line is perpendicular to the cutting opening and is cut into a plurality of filter units.

2. The fully automatic cutting production line of RO membrane filtration unit according to claim 1 is characterized in that: The stacking platform (120) comprises a base (121), a clamping mechanism (122) and a suction cup (123). Two groups of the clamping mechanism (122) are symmetrically arranged on both sides of the middle line of the base (121). The clamping mechanism (122) comprises a clamping drive cylinder (1221) and a pressure rod (1222). The suction cup (123) is located at the four corners of the base (121). The suction cup (123) adsorbs the four corners of the RO membrane (610). After the spacer mesh (710) is laid on the RO membrane (610), the clamping drive cylinder (1221) drives the pressure rod (1222) to press on one end of the spacer mesh (710) close to the middle line of the RO membrane (610).

3. The fully automatic cutting production line of RO membrane filtration unit according to claim 1 is characterized in that: The stacking robot (230) comprises a six-axis robot (231) and first driving clamps (232), and a plurality of groups of the first driving clamps (232) are connected side by side to the end of the six-axis robot (231).

4. The fully automatic cutting production line of RO membrane filtration unit according to claim 1 is characterized in that: The folding robot (310) comprises a lifting mechanism (311), a telescopic mechanism (312) and a clamping mechanism (313); the lifting mechanism (311) is slidably mounted on a column of the load-bearing frame (140); the telescopic mechanism (312) is drivingly connected to the lifting mechanism (311); the clamping mechanism (313) is drivingly connected to the telescopic mechanism (312); and the clamping mechanism (313) is provided with a second driving clamping claw (3131) for clamping.

5. The fully automatic cutting production line of RO membrane filtration unit according to claim 4 is characterized in that: The two groups of folding manipulators (310) are mounted on two staggered upright posts of the load-bearing frame (140), and the side projections of the two groups of folding manipulators (310) are face-to-face.

6. The fully automatic cutting production line of RO membrane filtration unit according to claim 1 is characterized in that: The creasing mechanism (400) further comprises a transfer mechanism (410), wherein the transfer mechanism (410) is slidably mounted on a top frame of the load-bearing frame (140), and the shifting robot (420) and the pressing roller (430) are connected to the transfer mechanism (410) in parallel.

7. The fully automatic cutting production line of RO membrane filtration unit according to claim 6 is characterized in that: The indentation mechanism (400) further comprises a limiting mechanism (440), wherein the limiting mechanism (440) is connected to the transfer mechanism (410) and is located between the transfer robot (420) and the pressing roller (430), and the limiting mechanism (440) comprises a limiting drive cylinder (441) and a limiting column (442), wherein the limiting drive cylinder (441) drives the limiting column (442) to rise and fall, and the limiting column (442) is pressed at a predetermined distance in front of the folding line of the RO membrane (610).

8. The fully automatic cutting production line for RO membrane filtration units according to any one of claims 1 to 7, characterized in that: The cutting mechanism (500) comprises a cutting machine (510) and a pulling manipulator (520), wherein the cutting machine (510) straddles the second slide rail (112), and the pulling manipulator (520) is located outside the cutting machine (510). The creasing platform (130) moves a predetermined distance along the second slide rail (112), and the pre-cut filter unit enters the cutting direction of the cutting machine (510) at a folded creasing line perpendicular to the cutting direction of the cutting machine (510). The pulling manipulator (520) clamps and pulls the pre-cut filter unit to move a predetermined distance, and the pre-cut filter unit is cut into a plurality of filter units.

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