Reverse osmosis membrane adhesive tape pasting device

Abstract

The utility model relates to the technical field of reverse osmosis membrane element preparation, and discloses a reverse osmosis membrane adhesive tape pasting device which comprises a rotary type supporting plate, a movable type back plate, an adhesive tape assembly, a movable pressing head and a movable type cut-off knife, air holes are formed in the upper plate face of the rotary type supporting plate, and the rotary type supporting plate is of a hollow structure. And the rotation direction of the rotary supporting plate is along the axis of the length direction of the rotary supporting plate. The reverse osmosis membrane adhesive tape pasting device provided by the utility model is simple in structure, can improve the working efficiency of a procedure of pasting a center joint adhesive tape to a reverse osmosis membrane in the preparation process of a reverse osmosis membrane element, reduces the labor intensity of workers, improves the precision and uniformity of pasting the adhesive tape to the reverse osmosis membrane, and improves the production efficiency of the reverse osmosis membrane element. Therefore, the yield of the subsequently prepared reverse osmosis membrane element is improved, and the method has relatively high practical value and economic benefit.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis membrane element preparation, and particularly relates to a reverse osmosis membrane tape pasting device. Background Art

[0002] Currently, as Figure 2 shown, existing reverse osmosis membrane elements 8 all include a central tube 81, a reverse osmosis membrane sheet 82, an inlet spacer 83, and a pure water guide cloth 84. During the process of preparing the reverse osmosis membrane element 8, in order to improve the product quality of the reverse osmosis membrane element, reduce the scratching of the membrane sheet by the spacer, and improve the desalination rate of the reverse osmosis membrane element, those skilled in the art usually paste a tape 9 on the middle seam of the reverse osmosis membrane sheet 2 (specifically as Figure 3 shown), then fold the reverse osmosis membrane sheet 2 with the tape 9 pasted along the middle seam, then place the inlet spacer 83 between the folded reverse osmosis membrane sheets 82, then stack the pure water guide cloth 84 outside the reverse osmosis membrane sheets 82 and connect it to the central tube 81, and then wind it to form the reverse osmosis membrane element 8.

[0003] However, during the process of manufacturing reverse osmosis membrane elements, the middle seam tape pasting of reverse osmosis membrane sheets is usually carried out by manual pasting, which is time-consuming and laborious, has a large labor cost, and the pasting quality is uneven, easily resulting in a low yield of the prepared reverse osmosis membrane elements. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the technical problem that it is difficult to paste the middle seam tape on the reverse osmosis membrane sheet existing in the prior art.

[0005] To achieve the above purpose, the utility model provides a reverse osmosis membrane tape pasting device, including:

[0006] A rotary support plate, the upper plate surface of the rotary support plate is provided with air holes and the rotary support plate is of a hollow structure, a cavity is formed inside it, the side plate surface and / or the lower plate surface of the rotary support plate are provided with vacuum ports, the vacuum ports are used for connecting with a vacuum pumping device, and the rotation direction of the rotary support plate is along the axis of the length direction of the rotary support plate;

[0007] A movable back plate, which is arranged on one side of the length direction of the rotary support plate, and the moving direction of the movable back plate is along the length direction of the rotary support plate;

[0008] A tape assembly, including a tape roll and a rotary shaft fixedly arranged on the movable back plate, the axis of the rotary shaft is perpendicular to the movable back plate, the tape roll is sleeved on the rotary shaft and is arranged above the rotary support plate, and the rotary shaft outputs the tape of the tape roll through rotation;

[0009] The movable pressure head is provided at one end of the rotary support plate and above the rotary support plate. The moving direction of the movable pressure head is downward or obliquely downward, and is used to press the starting end of the output tape; and

[0010] The movable cutting knife is provided on the movable back plate and above the rotary support plate. The moving direction of the movable cutting knife is perpendicular to the upper plate surface of the rotary support plate, and is used to cut the tape adhered to the upper plate surface of the rotary support plate.

[0011] Preferably, an air pipe is further provided on the movable back plate. The air pipe is located above the rotary support plate and is used to connect with an air source and blow the tape output by the tape assembly onto the upper plate surface of the rotary support plate.

[0012] Preferably, the diameter of the air hole is d, and the width of the rotary support plate is b, wherein d is not greater than 0.5b.

[0013] Preferably, the number of the air holes is not less than 3, and the distance between every two adjacent air holes is equal.

[0014] Preferably, the distance s between two adjacent air holes is 0.5d - 30d.

[0015] Preferably, the width a of the tape output by the film is not less than the diameter d of the air hole.

[0016] Preferably, the tape assembly further includes a first auxiliary roller and a second auxiliary roller fixedly provided on the movable back plate and located below the film. The axes of the first auxiliary roller and the second auxiliary roller are parallel to each other, and the axes of the first auxiliary roller and the second auxiliary roller are independently perpendicular to the movable back plate. The tape bypasses the axes of the first auxiliary roller and the second auxiliary roller and contacts the upper plate surface of the rotary support plate.

[0017] Preferably, the rotation range of the rotary support plate is at least 0° - 180°.

[0018] Preferably, the rotary support plate further satisfies at least the following condition: it can move in the up and down direction.

[0019] Preferably, a support frame is further included, and the support frame is connected to both ends of the rotary support plate along the length direction.

[0020] The reverse osmosis membrane tape pasting device provided by the utility model has a simple structure and low manufacturing cost. It can improve the working efficiency of the process of pasting tape to the middle seam of the reverse osmosis membrane during the preparation of reverse osmosis membrane elements, greatly reduce the labor intensity of workers, improve the accuracy and uniformity of tape pasting on the reverse osmosis membrane, thereby improving the yield rate of the subsequent prepared reverse osmosis membrane elements, and has high practical value and economic benefits. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the reverse osmosis membrane tape pasting device provided by the specific embodiment of the utility model;

[0022] Figure 2 is a schematic structural diagram of a reverse osmosis membrane element in the prior art;

[0023] Figure 3 is a schematic structural diagram of pasting tape to the middle seam of the reverse osmosis membrane provided by the specific embodiment of the utility model.

[0024] Description of the Reference Numerals

[0025] 1. Rotary support plate; 2. Tape assembly; 3. Movable back plate; 4. Movable cutting knife; 5. Air pipe; 6. Movable pressure head; 7. Support frame; 8. Reverse osmosis membrane element; 9. Tape;

[0026] 11. Air hole; 12. Vacuum port;

[0027] 21. Film roll; 22. Rotating shaft; 23. First auxiliary roller; 24. Second auxiliary roller;

[0028] 81. Central tube; 82. Reverse osmosis membrane; 83. Feed water spacer; 84. Pure water guide cloth. Detailed Embodiment

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the following further details the utility model with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0032] The endpoints and any values within the ranges disclosed herein are not limited to the exact ranges or values. These ranges or values should be understood to include values close to these ranges or values. For numerical ranges, the values between the endpoints of each range, between the endpoints of each range and individual point values, and between individual point values can be combined with each other to obtain one or more new numerical ranges, and these numerical ranges should be regarded as specifically disclosed herein.

[0033] As described above, the present invention provides a reverse osmosis membrane tape pasting device, as Figure 1 shown, including:

[0034] A rotary support plate 1, the upper plate surface of the rotary support plate 1 is provided with air holes 11 and the rotary support plate 1 is of a hollow structure, with a cavity formed inside. The side plate surface and / or the lower plate surface of the rotary support plate 1 are provided with vacuum ports 12, and the vacuum ports 12 are used to connect with a vacuum pumping device. The rotation direction of the rotary support plate 1 is along the axis in the length direction of the rotary support plate 1;

[0035] A movable back plate 3, arranged on one side in the length direction of the rotary support plate 1, and the moving direction of the movable back plate 3 is along the length direction of the rotary support plate 1;

[0036] A tape assembly 2, including a film roll 21 and a rotary shaft 22 fixedly arranged on the movable back plate 3. The axis of the rotary shaft 22 is perpendicular to the movable back plate 3. The film roll 21 is sleeved on the rotary shaft 22 and arranged above the rotary support plate 1. The rotary shaft 22 outputs the tape of the film roll 21 through rotation;

[0037] A movable pressure head 6, arranged at one end of the rotary support plate 1 and located above the rotary support plate 1. The moving direction of the movable pressure head 6 is downward or obliquely downward, and is used to press the starting end of the output tape; and

[0038] A movable cutting knife 4, arranged on the movable back plate 3 and above the rotary support plate 1. The moving direction of the movable cutting knife 4 is perpendicular to the upper plate surface of the rotary support plate 1, and is used to cut the tape adhered to the upper plate surface of the rotary support plate 1.

[0039] The usage process of the reverse osmosis membrane tape pasting device provided by the present utility model is as follows:

[0040] S1: The rotating shaft 22 outputs the tape of the film roll 21 through rotation, and the starting end of the tape is attached to the upper plate surface of the rotary support plate 1. Among them, the adhesive surface of the tape faces upward, and the non - adhesive surface faces downward and contacts the upper plate surface of the rotary support plate 1;

[0041] S2: The movable pressing head 6 moves downward or obliquely downward to press the starting end of the tape onto the upper plate surface of the rotary support plate 1. At the same time, the vacuum port 12 of the rotary support plate 1 is connected to a vacuum pumping device to perform vacuum pumping on the cavity formed inside the rotary support plate 1. Under the action of the movable pressing head 6, the air holes 11 and vacuum pumping, the starting end of the tape is fixedly attached to the upper plate surface of the rotary support plate 1;

[0042] S3: The movable back plate 3 translates along the length direction of the rotary support plate 1. At the same time, the rotating shaft 22 continuously rotates and continuously outputs the tape. Under the action of the air holes 11 and vacuum pumping, the output tape is attached to the upper plate surface of the rotary support plate 1;

[0043] S4: When the length of the tape to be output is equal to the actual required tape length, the movable back plate 3 stops moving, and the rotating shaft 22 also stops outputting the tape. The movable cutting knife 4 moves downward to cut the tape, and then moves upward to reset;

[0044] S5: Place the reverse osmosis membrane to be pasted under the rotary support plate 1. The rotary support plate 1 rotates clockwise or counterclockwise by 180°, moves the reverse osmosis membrane to be pasted upward to contact the tape adsorbed on the rotary support plate 1, stops vacuum pumping, and thus the bonding is successful. Or, move the rotary support plate 1 downward so that the tape adsorbed on the rotary support plate 1 contacts the reverse osmosis membrane to be pasted, stop vacuum pumping, and thus the bonding is successful;

[0045] S6: Move the reverse osmosis membrane with the tape pasted into the next preparation process. The rotary support plate 1 rotates and / or moves upward to reset, and the movable back plate 3 also translates to reset.

[0046] If it is necessary to perform tape pasting treatment on multiple reverse osmosis membranes, just repeat steps S1 - S6.

[0047] It should be noted that in steps S1 - S6, the tape output by the rotating shaft 22 driving the film roll 21 is the tape 9 used for pasting on the Figure 3 middle seam of the reverse osmosis membrane 82 shown.

[0048] It should be noted that the present utility model does not have special requirements for the power devices of the rotary support plate 1, the movable back plate 3, the movable pressing head 6, and the movable cutting knife 4 respectively, and conventional technical means in the art can be adopted. Exemplarily, the rotary support plate 1 realizes its rotational movement through a driving motor, the movable back plate 3 realizes its reciprocating movement along the length direction of the rotary support plate 1 through a slide rail, and the movable pressing head 6 and the movable cutting knife 4 respectively realize their required movements through air cylinders.

[0049] It should also be noted that the length direction of the rotary support plate 1 is the Figure 1 y direction as shown.

[0050] According to some preferred embodiments of the present utility model, an air pipe 5 is further included and arranged on the movable back plate 3. The air pipe 5 is located above the rotary support plate 1 and is used to connect with an air source and blow the tape output by the tape assembly 2 onto the upper plate surface of the rotary support plate 1. In this preferred case, the tape output in steps S1 and - S3 can be more smoothly attached to the upper plate surface of the rotary support plate 1.

[0051] According to some preferred embodiments of the present utility model, the diameter of the air hole 11 is d, and the width of the rotary support plate 1 is b. Among them, d is not greater than 0.5b. In this preferred case, the tape output in steps S1 and - S3 can be more smoothly attached to the upper plate surface of the rotary support plate 1.

[0052] According to some preferred embodiments of the present utility model, the number of the air holes 11 is not less than 3, and the distance between every two adjacent air holes 11 is equal. Exemplarily, the number of the air holes 11 is 5, 10, 20, 30.

[0053] According to some preferred embodiments of the present utility model, the distance s between two adjacent air holes 11 is 0.5d - 30d. Exemplarily, the distance s between the air holes 11 is 0.5d, 3d, 10d, 18d, 25d.

[0054] According to a particularly preferred embodiment of the present utility model, the distance s between two adjacent air holes 11 is 10d, and the air holes 11 are evenly distributed on the upper plate surface of the rotary support plate 1.

[0055] According to some preferred embodiments of the present utility model, the width a of the tape output by the film 21 is not less than the diameter d of the air hole 11. Under this preferred condition, it can effectively prevent the tape from being sucked into the air hole 11 due to the vacuum effect, and further ensure the flatness of the tape attached to the upper plate surface of the rotary support plate 1.

[0056] According to some preferred embodiments of the present utility model, the tape assembly 2 further includes a first auxiliary roller 23 and a second auxiliary roller 24 fixedly disposed on the movable back plate 3 and located below the film roll 21. The axes of the first auxiliary roller 23 and the second auxiliary roller 24 are parallel to each other, and the axes of the first auxiliary roller 23 and the second auxiliary roller 24 are independently perpendicular to the movable back plate 3. The tape bypasses the axes of the first auxiliary roller 23 and the second auxiliary roller 24 and contacts the upper plate surface of the rotary support plate 1. Under this preferred condition, the arrangement of the first auxiliary roller 23 and the second auxiliary roller 24 can guide the starting end of the tape output from the film roll 21 to contact the upper plate surface of the rotary support plate 1. At the same time, it can also guide the continuously output tape to contact the upper plate surface of the rotary support plate 1, which is more conducive to the adhesion of the tape to the upper plate surface of the rotary support plate 1.

[0057] Further preferably, the first auxiliary roller 23 and the second auxiliary roller 24 are independently movable rollers, and their moving directions are independently along the direction perpendicular to the upper plate surface of the rotary support plate 1. During use, in step S1, when it is necessary to guide the tape output from the film roll 21 to adhere to the upper plate surface of the rotary support plate 1, both the first auxiliary roller 23 and the second auxiliary roller 24 move towards the upper plate surface of the rotary support plate 1 along the direction perpendicular to the upper plate surface of the rotary support plate 1; in step S4, when the film roll 21 stops outputting the tape, both the first auxiliary roller 23 and the second auxiliary roller 24 move towards the upper plate surface of the rotary support plate 1 along the direction perpendicular to the upper plate surface of the rotary support plate 1 to reset.

[0058] According to some preferred embodiments of the present utility model, the rotation range of the rotary support plate 1 is at least 0° - 180°. After the rotary support plate 1 rotates 180°, the tape is pasted on the reverse osmosis membrane to be pasted, and then rotated 180° in the reverse direction to reset.

[0059] According to some preferred embodiments of the present utility model, the rotation range of the rotary support plate 1 is 0° - 360°. After the rotary support plate 1 rotates 180°, the tape is pasted on the reverse osmosis membrane to be pasted, and then continues to rotate 180° in the initial rotation direction to reset, or rotates 180° in the reverse direction to reset.

[0060] According to some preferred embodiments of the present utility model, the rotary support plate 1 further satisfies at least the following condition: it can move in the up and down direction. The rotary support plate 1 rotates 180° clockwise or counterclockwise, and then moves downwards so that the tape adsorbed on the rotary support plate 1 contacts the reverse osmosis membrane to be pasted and the bonding is successful. Under this preferred condition, there is no need to move the reverse osmosis membrane upwards, further reducing the complexity of the process of pasting the tape on the reverse osmosis membrane.

[0061] According to some preferred embodiments of the present utility model, it further includes a support frame 7, and the support frame 7 is connected to both ends of the rotary support plate 1 along the length direction, so that the support frame 7 has more sufficient space for rotation and vertical movement.

[0062] The preferred embodiments of the present utility model have been described in detail above. However, the present utility model is not limited thereto. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solution of the present utility model, including any other suitable combination of each technical feature. These simple modifications and combinations should also be regarded as the content disclosed by the present utility model and fall within the protection scope of the present utility model.

Claims

1. A reverse osmosis membrane tape pasting device, characterized in that: include: A rotating support plate (1), wherein the upper plate surface of the rotating support plate (1) is provided with air holes (11) and the rotating support plate (1) is a hollow structure with a cavity formed inside, and the side plate surface and / or the lower plate surface of the rotating support plate (1) are provided with vacuum ports (12), and the vacuum ports (12) are used to be connected to a vacuum extraction device, and the rotating direction of the rotating support plate (1) is along the axis of the length direction of the rotating support plate (1); A movable back plate (3) is arranged on one side of the length direction of the rotating support plate (1), and the movable back plate (3) moves along the length direction of the rotating support plate (1); The adhesive tape assembly (2) comprises a film roll (21) and a rotating shaft (22) fixedly arranged on the movable back plate (3), wherein the axis of the rotating shaft (22) is perpendicular to the movable back plate (3), the film roll (21) is sleeved on the rotating shaft (22) and arranged above the rotating support plate (1), and the rotating shaft (22) outputs the adhesive tape of the film roll (21) by rotating; A movable pressing head (6) is arranged at one end of the rotating support plate (1) and is located above the rotating support plate (1), and the movable pressing head (6) moves in a downward or obliquely downward direction and is used to press the starting end of the outputted adhesive tape; as well as A movable cutter (4), the movable cutter (4) being arranged on the movable back plate (3) and above the rotating support plate (1), the movable cutter (4) moving in a direction perpendicular to the upper plate surface of the rotating support plate (1), and being used for cutting the adhesive tape attached to the upper plate surface of the rotating support plate (1).

2. The device according to claim 1, characterized in that It also includes an air pipe (5) arranged on the movable back plate (3), wherein the air pipe (5) is located above the rotating support plate (1) and is used to connect to an air source and blow the tape output by the tape assembly (2) onto the upper plate surface of the rotating support plate (1).

3. The device according to claim 1, characterized in that The diameter of the air hole (11) is d, and the width of the rotatable support plate (1) is b, wherein d is not greater than 0.5b.

4. The device according to claim 1, characterized in that The number of the air holes (11) is not less than 3, and the distance between every two adjacent air holes (11) is equal.

5. The device according to claim 4, characterized in that The distance s between two adjacent pores (11) is 0.5d-30d.

6. The device according to claim 1, characterized in that The width a of the adhesive tape output by the film roll (21) is not less than the diameter d of the air hole (11).

7. The device according to any one of claims 1 to 6, characterized in that: The adhesive tape assembly (2) further comprises a first auxiliary roller (23) and a second auxiliary roller (24) which are fixedly arranged on the movable back plate (3) and located below the film roll (21); the axis of the first auxiliary roller (23) and the axis of the second auxiliary roller (24) are parallel to each other, and the axis of the first auxiliary roller (23) and the axis of the second auxiliary roller (24) are independently perpendicular to the movable back plate (3); the adhesive tape bypasses the axis of the first auxiliary roller (23) and the second auxiliary roller (24) to contact the upper plate surface of the rotating support plate (1).

8. The device according to any one of claims 1 to 6, characterized in that: The rotation range of the rotating support plate (1) is at least 0°-180°.

9. The device according to any one of claims 1 to 6, characterized in that: The rotating support plate (1) also at least meets the following conditions: it is capable of moving in the up and down directions.

10. The device according to any one of claims 1 to 5, characterized in that It also comprises a support frame (7), wherein the support frame (7) is connected to both ends of the rotating support plate (1) along the length direction.

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