Hollow fiber membrane filament fixed-length arrangement device

Abstract

The utility model discloses a hollow fiber membrane filament fixed-length arrangement device which comprises a stator assembly and a mechanical arm, the stator assembly comprises a first row of stator units and a second row of stator units which are arranged in the X direction, and stators in the second row of stator units and stators in the first row of stator units are arranged in a staggered mode in the Y direction. The mechanical arm is used for pulling the head end of a membrane filament to sequentially bypass the stators in the first row of stator units and the stators in the second row of stator units from the first side to the second side in the Y direction in an S-shaped path and finally is fixed to the stators, located on the second side in the Y direction, of the first row of stator units, and the second row of stator units are arranged on the X sliding plate. The X sliding plate drives the second row of stator units to slide to a set position in the X direction. According to the fixed-length arrangement device for the hollow fiber membrane filaments, the single membrane filaments are arranged into an S shape, a whole hollow fiber membrane is formed, and compared with the prior art, the arranged membrane filaments do not need to be cut, and holes do not need to be blocked during pouring.

Description

[Technical field]

[0001] The utility model belongs to the technical field of hollow fiber membrane water treatment equipment, and in particular relates to a hollow fiber membrane yarn fixed-length arrangement device. [Background technology]

[0002] The hollow fiber membrane filaments are fibrous in shape, and the outer diameter of the membrane filaments is usually 1.2-3.0mm and the inner diameter is 0.6-1.5mm. Arranging the membrane filaments in an orderly manner according to the standard spacing will greatly reduce the influence of pollutants on the permeability of the membrane filaments. The Chinese invention patent application with application publication number CN116159438 A discloses an automated membrane filament arrangement method, including the following steps: Step 1, using a wire feeding platform to store multiple membrane filament rolls, and pulling out the membrane filaments on the membrane filament rolls one by one; Step 2, passing the pulled membrane filaments through the set wire arrangement platform for wire arrangement operation, and pulling out multiple membrane filaments after arranging them side by side; Step 3, inserting the membrane filaments pulled out in step 2 into the set intercepting device, and intercepting the side-by-side membrane filaments through the intercepting device to obtain membrane filament rows; Step 4, transferring the membrane filament row obtained in step 3 to the set glue dispensing device through the set integration device for glue dispensing, and sending it to the external collection frame after the glue dispensing is completed. Since the membrane filament needs to be inserted into a set cutting device for cutting and glued at a glue dispensing device, the process is increased. [Contents of the utility model]

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a fixed-length arrangement device for hollow fiber membranes with unidirectional wire feeding, which does not require cutting of the arranged membrane fibers and does not require plugging of holes during casting.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions: a device for arranging hollow fiber membrane threads at a fixed length, comprising a stator assembly and a robotic arm, wherein the stator assembly comprises a first row of stator units and a second row of stator units arranged along the X direction, the stators in the second row of stator units and the stators in the first row of stator units are staggered in the Y direction, the robotic arm is used to pull the head end of a membrane thread from the first side to the second side in the Y direction in an S-shaped path, bypassing the stators in the first row of stator units and the stators in the second row of stator units in turn, and finally being fixed on the stator of the first row of stator units on the second side in the Y direction, the second row of stator units being arranged on an X slide, and the X slide drives the second row of stator units to slide along the X direction to a set position.

[0005] Preferably, the stator is cylindrical, and has wire-in limiting posts and wire-out limiting posts spaced apart along the circumferential direction. The membrane wire enters from below the wire-in limiting posts, passes around the outer circle of the stator, and then exits from the wire-out limiting posts.

[0006] Preferably, the wire-in limiting posts and the wire-out limiting posts are distributed at intervals of 180 degrees along the circumferential direction of the stator.

[0007] Preferably, the wire-in limiting column is lower than the wire-out limiting column.

[0008] Preferably, the wire inlet limiting column and the wire outlet limiting column extend obliquely downward. Preferably, the paired conveying belts include a first belt and a second belt, and the second belt is connected to a second belt adjusting structure for adjusting the clamping force between the first belt and the second belt.

[0009] The technical solution adopted by the utility model is to arrange the single membrane filaments into an S shape by the hollow fiber membrane filament fixed length arrangement device, and form a whole hollow fiber membrane sheet. Compared with the prior art, it has the following beneficial effects:

[0010] 1. Arrange the membrane from a single hollow fiber without cutting;

[0011] 2. Since the hollow fiber membrane filaments are arranged in an S-shaped pattern, the membrane filaments after being fixed in length are in an "O"-shaped structure (both ends are U-shaped), and there is no need to plug the holes (after the general fiber membrane is lengthened, the holes must be plugged to prevent the resin from penetrating during the gluing process, which leads to plugging of the holes);

[0012] 3. There is no need to arrange multiple membrane threads side by side and then pull them out, which can solve the problem that the pressure plate is not pressed firmly during the thread arrangement and the fiber membrane falls off the pressure plate.

[0013] 4. Avoid the problem of multiple fiber membrane joints and water leakage caused by poor sealing;

[0014] 5. Since the fiber membrane is arranged in an S-shaped pattern, the membrane after fixed length is in an "O"-shaped structure and both ends are fixed by a fixed length rod, so there is no need to inject glue at the end of the pressing plate for fixed arrangement;

[0015] 6. The stator assembly accurately orients the fiber membrane wire.

[0016] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of the working process of the stator assembly;

[0019] Figure 2 is a schematic diagram of the structure of the stator;

[0020] Figure 3 This is a schematic diagram of the structure of the robotic arm pulling the membrane wire;

[0021] Figure 4 is a side view of the wire coiling device;

[0022] Figure 5 is a top view of the wire coiling device;

[0023] In the figure: stator assembly 1, membrane wire 100, wire inlet limiting column 101, wire outlet limiting column 102, first row of stator units 11, second row of stator units 12, robotic arm 2, wire winding device 3, wire winding rack 31, wire unwinding assembly 32, wire unwinding reel 321, wire unwinding guide wheel 322, conveyor belt 323, cross slider assembly 33, circular slider 331, wire passing hole 332, X guide rail 333, Y guide rail 334, wire winding barrel 34. [Specific implementation method]

[0024] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0027] The terms "first", "second", etc. in the present utility model are used to distinguish similar objects rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first".

[0028] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0029] Reference Figures 1 to 5 As shown, the utility model provides a hollow fiber membrane production device, including a wire coiling device 3 and a hollow fiber membrane fixed-length arrangement device.

[0030] Among them, the wire winding device 3 includes a wire winding frame 31, a wire unwinding assembly 32, a wire winding barrel 34 and a cross slider assembly 33 arranged on the wire winding frame. The wire unwinding assembly 32 is located above the wire winding barrel and is used to convey the membrane wire to the wire winding barrel. The cross slider assembly 33 is arranged in the middle position of the wire unwinding assembly and the wire winding barrel in the height direction, and is used to drive the membrane wire to move in a circle, so that the membrane wire is wound in the wire winding barrel to form a membrane wire reel.

[0031] The hollow fiber membrane fixed-length arrangement device comprises a stator assembly 1 and a robot arm 2. The stator assembly 1 comprises a first row of stator units 11 and a second row of stator units 12 arranged along the X direction. The stators in the second row of stator units are staggered with the stators in the first row of stator units in the Y direction.

[0032] The robot arm 2 is used to pull the head end of the membrane wire drawn from the membrane wire reel in the wire reel barrel, and make the head end of the membrane wire 100 pass through the stators in the first row of stator units and the stators in the second row of stator units in an S-shaped path from the first side of the Y direction to the second side, and finally fixed on the stator of the first row of stator units located on the second side of the Y direction. Since the wire reel device winds the membrane wire in the wire reel barrel to form a membrane wire reel, which is arranged in an orderly and relatively loose manner, it is conducive to the robot arm to pull the membrane wire, so it is very important to transform the membrane wire from a membrane wire roll to a membrane wire reel.

[0033] The second row of stator units is arranged on an X slide plate, and the X slide plate drives the second row of stator units to slide to a set position along the X direction, and pulls the membrane wires to be continuously drawn out from the membrane wire disk, so that the membrane wires are arranged in an S shape, and the arranged membrane wires have a set length in the X direction. Moreover, the X slide plate can be driven by a servo motor in conjunction with a lead screw nut mechanism.

[0034] Since the hollow fiber membrane filaments are arranged in an S-shaped pattern, the membrane filaments after being fixed in length are in an "O"-shaped structure, that is, both ends are U-shaped. In addition, two fixed-length rods are included, and the two fixed-length rods pass through the ends of the membrane filaments on the first row of stator units and the ends of the membrane filaments on the second row of stator units (through the U-shaped part) respectively. That is, the first fixed-length rod is equivalent to replacing the stator in the first row of stator units, and the second fixed-length rod is equivalent to replacing the stator in the second row of stator units. After the two fixed-length rods are stretched to both ends (both sides of X), a whole hollow fiber membrane sheet is formed.

[0035] like Figure 2 As shown, the stator is cylindrical, and has wire-in limiting posts 101 and wire-out limiting posts 102 spaced apart along the circumferential direction. The film wire enters from below the wire-in limiting posts 101 , and comes out from the wire-out limiting posts 102 after passing around the outer circle of the stator.

[0036] The wire-in limiting column 101 and the wire-out limiting column 102 are distributed 180 degrees apart along the circumference of the stator. Moreover, the wire-in limiting column is lower than the wire-out limiting column. The wire-in limiting column and the wire-out limiting column extend obliquely downward. Since the part where the membrane wire enters the stator is lower than the part where it exits the stator, it is convenient for the fixed-length rod to pass through after the length is taken.

[0037] The above technical solution, in which the hollow fiber membrane yarn fixed length arrangement device arranges the single membrane yarn into an S shape and forms a whole hollow fiber membrane sheet, has the following beneficial effects compared with the prior art:

[0038] 1. Arrange the membrane from a single hollow fiber without cutting;

[0039] 2. Since the hollow fiber membrane filaments are arranged in an S-shaped pattern, the membrane filaments after being fixed in length are in an "O"-shaped structure (both ends are U-shaped), and there is no need to plug the holes (after the general fiber membrane is lengthened, the holes must be plugged to prevent the resin from penetrating during the gluing process, which leads to plugging of the holes);

[0040] 3. There is no need to arrange multiple membrane threads side by side and then pull them out, which can solve the problem that the pressure plate is not pressed firmly during the thread arrangement and the fiber membrane falls off the pressure plate.

[0041] 4. Avoid the problem of multiple fiber membrane joints and water leakage caused by poor sealing;

[0042] 5. Since the fiber membrane is arranged in an S-shaped pattern, the membrane after fixed length is in an "O"-shaped structure and both ends are fixed by a fixed length rod, so there is no need to inject glue at the end of the pressing plate for fixed arrangement;

[0043] 6. The stator assembly accurately orients the fiber membrane wire.

[0044] like Figure 4 and Figure 5 As shown, the wire unwinding assembly 32 includes a wire unwinding reel 321 and a pair of conveying belts 323, the paired conveying belts clamp and convey the film wire, and pull the wire unwinding reel to allow the film wire to be led out from the wire unwinding reel. The wire unwinding reel is arranged at the rear side of the conveying belt, the conveying path of the conveying belt is vertical, and a wire unwinding guide wheel 322 is arranged between the wire unwinding reel and the conveying belt. The paired conveying belts include a first belt and a second belt, and the second belt is connected to a second belt adjustment structure for adjusting the clamping force between the first belt and the second belt. After the film wire is led out from the wire unwinding reel, it is guided by the wire unwinding guide wheel 322 and enters between the first belt and the second belt for clamping and conveying.

[0045] The cross slider assembly 33 includes an X-rail 333, a Y-rail 334 and a circle-drawing slider 331. A thread hole 332 is provided at the front end of the circle-drawing slider. The membrane wire passes through the thread hole and then cooperates with the X-rail 333 and the Y-rail 334 to realize the X and Y movement of the circle-drawing slider 331, so that the thread hole 332 drives the membrane wire to move like drawing a circle.

[0046] In addition, the utility model also provides a method for manufacturing hollow fiber membranes, which is manufactured using the hollow fiber membrane sheet manufacturing equipment. First, the membrane fibers are coiled into membrane fiber coils by a wire coiling device; then, the hollow fiber membrane fibers are arranged in fixed lengths into hollow fiber membrane sheets by a hollow fiber membrane fiber fixed-length arrangement device; finally, multiple hollow fiber membrane sheets are stacked together and placed in a casting mold for gluing.

[0047] The method for arranging the hollow fiber membrane filaments at a fixed length to form a hollow fiber membrane sheet comprises the following steps:

[0048] Step 1: The robotic arm pulls the membrane wire to be wound on the stator assembly;

[0049] Step 2: the second row of stator units slides along the X direction to a set position so that the arranged membrane filaments have a set length;

[0050] Step 3: After the length is taken, two fixed-length rods are used to fix the two ends of the membrane filament in the X direction to form a hollow fiber membrane sheet.

[0051] The hollow fiber membrane sheet is in sheet shape as a whole, in which the hollow fiber membrane filaments are a closed ring structure, i.e., an "o" shape, with its upper and lower ends both U-shaped and both sides vertical, which will be glued later.

[0052] The solution of stacking and gluing multiple hollow fiber membrane sheets can refer to the existing technology, which is briefly described as follows: For hollow fiber membrane sheets, upper and lower inserts can be used to replace two fixed-length rods, wherein the upper insert passes through the upper end of the hollow fiber membrane filament horizontally, and the lower insert passes through the lower end of the hollow fiber membrane filament horizontally. The upper insert and the lower insert cooperate to stretch the entire hollow fiber membrane filament sheet up and down into a stretched state. Several hollow fiber membrane sheets are arranged in a row along the longitudinal direction, and the upper insert is inserted into the upper end cover, and the lower insert is inserted into the lower end cover. A certain gap is provided between two adjacent hollow fiber membrane bundle units in the longitudinal direction. The lower end cover includes a rectangular outer frame and a row of lower slots arranged along the longitudinal direction on the inner side of the rectangular outer frame, and the lower insert is inserted into the lower slot. The upper end cover includes a rectangular frame, an upper slot is provided on the lateral side of the rectangular frame, and an upper plug column is provided at the end of the upper plug sheet, and the upper plug column is plugged into the upper slot, that is, the upper plug columns at the lateral ends of the upper plug sheet are correspondingly plugged into the two upper slots on the lateral sides of the rectangular frame. The upper slot is a U-shaped structure, and limiting grooves are provided on both sides of the U-shaped mouth of the upper slot, so that a T-shaped groove is formed at the upper end of the upper slot, and limiting lugs are provided on both sides of the upper end of the upper plug column, so that a T-shaped head is formed, and the T-shaped head cooperates with the T-shaped groove, and the limiting lugs cooperate with the limiting grooves. In this way, the upper plug sheet is inserted into the upper slot from top to bottom, and after being inserted into place, the upper plug sheet cannot be inserted further due to the limiting cooperation between the limiting lugs and the limiting grooves. A support rod is provided between the upper end cover and the lower end cover, and usually four support rods are provided, and are correspondingly arranged between the four corners of the upper end cover and the lower end cover. All upper inserts are plugged into the upper end cover, and all lower inserts are plugged into the lower end cover, and then they can be placed in the casting mold for gluing. Of course, after the gluing is completed, the upper end cover and its upper inserts, and the upper end of the hollow fiber membrane need to be cut off, that is, the original U-shape at the upper end is cut off, and the end portions on both sides are exposed.

[0053] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A device for arranging hollow fiber membranes in fixed length, characterized in that: It includes a stator assembly and a robotic arm, wherein the stator assembly includes a first row of stator units and a second row of stator units arranged along the X direction, the stators in the second row of stator units and the stators in the first row of stator units are staggered in the Y direction, the robotic arm is used to pull the head end of a membrane wire from the first side to the second side in the Y direction in an S-shaped path, bypassing the stators in the first row of stator units and the stators in the second row of stator units in sequence, and finally fixed on the stator of the first row of stator units on the second side in the Y direction, the second row of stator units are arranged on an X slide, and the X slide drives the second row of stator units to slide to a set position along the X direction.

2. A hollow fiber membrane yarn fixed length arrangement device according to claim 1, characterized in that: The stator is cylindrical, and is provided with wire-in limiting posts and wire-out limiting posts at intervals along the circumferential direction. The film wire enters from below the wire-in limiting posts, passes around the outer circle of the stator, and then passes out from the wire-out limiting posts.

3. A hollow fiber membrane yarn fixed length arrangement device according to claim 2, characterized in that: The wire-in limiting posts and the wire-out limiting posts are distributed at intervals of 180 degrees along the circumferential direction of the stator.

4. A hollow fiber membrane yarn fixed length arrangement device according to claim 3, characterized in that: The wire-in limiting column is lower than the wire-out limiting column.

5. A hollow fiber membrane yarn fixed length arrangement device according to claim 4, characterized in that: The wire-in limiting column and the wire-out limiting column extend obliquely downward.

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