CN109795909B - Pretreatment device and method for central tube of reverse osmosis household membrane element - Google Patents
Pretreatment device and method for central tube of reverse osmosis household membrane element Download PDFInfo
- Publication number
- CN109795909B CN109795909B CN201711155529.0A CN201711155529A CN109795909B CN 109795909 B CN109795909 B CN 109795909B CN 201711155529 A CN201711155529 A CN 201711155529A CN 109795909 B CN109795909 B CN 109795909B
- Authority
- CN
- China
- Prior art keywords
- central tube
- membrane
- reverse osmosis
- double
- films
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012528 membrane Substances 0.000 title claims description 75
- 238000001223 reverse osmosis Methods 0.000 title claims description 29
- 238000000034 method Methods 0.000 title description 9
- 239000002390 adhesive tape Substances 0.000 claims description 38
- 239000003292 glue Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001728 nano-filtration Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a pretreatment device and a pretreatment method for a central tube of a reverse osmosis household membrane element, wherein the pretreatment device comprises the central tube, a membrane, a film and double-sided adhesive tapes, wherein the films are wound at two ends of the central tube, the films are adhered at the end part of the central tube through the double-sided adhesive tapes, one side of each film is aligned with the edge of the central tube, the membrane is wound on the central tube, and part of the films are covered by the membrane; before rolling the reverse osmosis household membrane element, respectively winding films with 1-2 circles at two ends of the central tube by utilizing double faced adhesive tapes, and rolling the films outside the central tube, the films and the wide transparent adhesive tapes; and cutting off the films and the diaphragms which cover the two ends of the central tube along the cutting line until the whole reverse osmosis household membrane element is rolled. According to the invention, the polyurethane glue is separated from the end head of the central tube through the double-sided adhesive tape, and when edge removing operation is needed, the polyurethane glue cannot permeate the end head of the central tube, so that the stripping is very convenient, and the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the field of reverse osmosis membrane production, in particular to a pretreatment device and method for a central tube of a reverse osmosis household membrane element.
Background
The common rolling process of the reverse osmosis household membrane element is to uniformly roll the laminated membrane on a specially-made central tube, then to trim and shape the membrane to a fixed size, and after trimming is completed, redundant ends on two sides are required to be peeled off, because the polyurethane glue used in the membrane rolling process is used for fixing the membrane on the central tube, the ends are only adhered on the central tube and are difficult to peel off, and the mode is generally carried out manually by adopting a cutting mode of a blade, and has the following defects:
1. the peeling efficiency is low. By adopting the manual stripping mode, a single person can only process about 100 reverse osmosis household membrane elements, and because the end head is too tightly adhered to the central tube, the self-driven drawing equipment cannot be used for carrying out the edging operation, so that the secondary working procedure becomes a bottleneck in the whole production process.
2. The rejection rate of the element is high during peeling. The blade is difficult to avoid and damages to the components due to the fact that the blade is required to be used for stripping the end in the process of trimming, so that the rejection rate of the components in stripping is very high.
3. The stripping operation has potential safety hazards, and because the blade is required to be used for stripping the end in the edge removing process, staff can easily cut fingers in the process of stripping by the blade.
Disclosure of Invention
The invention aims to solve the problems of difficult stripping, high rejection rate and potential safety hazard of the traditional reverse osmosis household membrane element in the process of stripping the end head, and provides a pretreatment device and a pretreatment method for a central tube of the reverse osmosis household membrane element, so that the end head and the central tube can be conveniently stripped, the automatic operation of a machine can be conveniently realized, the working efficiency can be improved, and the damage of the reverse osmosis household membrane element can be avoided.
The invention realizes the above purpose through the following technical scheme:
the utility model provides a domestic membrane element center tube preprocessing device of reverse osmosis, includes center tube, diaphragm, film, double faced adhesive tape, and the both ends of center tube all twine the film, and the film is aligned with the edge of center tube through double faced adhesive tape at the tip of center tube and one side of film, and the diaphragm twines on the center tube and the diaphragm covers partial film, and the domestic membrane element of reverse osmosis of rolling up completion is direct with the partial diaphragm and the partial film excision at cladding center tube both ends.
Further, the width of the wide transparent adhesive tape is 5mm.
Further, the width of the double faced adhesive tape is 1-1.5 mm.
Further, the width of the film is 25-35 mm.
Further, the film is made of non-woven fabric material, nanofiltration membrane material, silicone paper or plastic film material.
Before rolling the reverse osmosis household membrane element, respectively winding films with 1-2 circles at two ends of the central tube by using double faced adhesive tapes, wherein the double faced adhesive tapes are adhered to one side of the films, which is close to the central tube, and one side of the films is aligned with the edge of the central tube; winding and fixing the film by using a wide transparent adhesive tape, wherein the wide transparent adhesive tape completely covers the double-sided adhesive tape area; the membrane is rolled on the outer sides of the central tube, the membrane and the wide transparent glue, polyurethane glue used for fixing the membrane is coated on the central tube between the two double-sided glue, the membrane is continuously wound on the central tube until the whole reverse osmosis household membrane element is rolled, the membrane and the membrane which cover the two ends of the central tube are cut off along the edge cutting line on the outer sides of the double-sided glue on the central tube, and the cut ends are directly peeled off from the central tube by adopting a manual bare-handed or mechanical automation mode.
Further, the coating edge position of the polyurethane glue is 1-5mm away from the double-sided adhesive.
The invention has the beneficial effects that: the invention has simple structure and low production cost, separates the polyurethane glue from the end head of the central tube through the double faced adhesive tape, when the rolling of the reverse osmosis household membrane element is completed and needs to be subjected to edge removing operation, the cut end head is a membrane and a film outside the central tube, the polyurethane glue cannot permeate the end head of the central tube, namely, the end head of the central tube cannot be adhered by the glue any more, so that the end head is convenient to peel, the automatic peeling of the end head is convenient to realize, the working efficiency is greatly improved, and meanwhile, the damage to the element and the damage to workers are avoided.
Drawings
FIG. 1 is a schematic structural view of a pretreatment device for a central tube of a reverse osmosis household membrane element.
FIG. 2 is a schematic diagram of the structure of the reverse osmosis domestic membrane element of the present invention before rolling.
In the figure, 1-diaphragm, 2-clamping groove, 3-central tube, 4-sealing ring groove, 5-film, 6-trimming line, 7-double faced adhesive tape and 8-bonding line.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 and 2, the pretreatment device for the central tube of the reverse osmosis household membrane element comprises a central tube 3, a membrane 1, a membrane 5 and double faced adhesive tape 7, wherein the membrane 5 is wound on two ends of the central tube 3, the membrane 5 is adhered to the end part of the central tube 3 through the double faced adhesive tape 7, one side of the membrane 5 is aligned with the edge of the central tube 3, the membrane 1 is wound on the central tube 3, the membrane 1 covers the central tube 3 and part of the membrane 5, and the wound reverse osmosis household membrane element directly cuts off part of the membrane 1 and part of the membrane 5 which cover two ends of the central tube 3. Both ends of the central tube 3 are provided with clamping grooves 2, the clamping grooves 2 are used for fixing both ends of the central tube 3, and each end of the central tube 3 is further provided with two sealing groove rings 4. The width of the wide transparent adhesive tape is 5mm, the width range of the double faced adhesive tape 7 is 1-1.5 mm, and the width range of the film 5 is 25-35 mm. The film 5 is made of non-woven fabric material, nanofiltration membrane material, silicone paper or plastic film material.
Before rolling the reverse osmosis household membrane element, a piece of double faced adhesive tape 7 is stuck on the edges of the membrane 5 which is used for being wound on the two ends of the central tube 3, the length of the double faced adhesive tape 7 ensures that the membrane 1 can be wound around the central tube for 1-2 circles, the double faced adhesive tape 7 is stuck on one side of the membrane 5, which is close to the central tube 3, one side of the membrane 5 is aligned with the edge of the central tube 3, the membrane 5 is wound and fixed by using a wide transparent adhesive tape, and the wide transparent adhesive tape covers the connection position of the central tube 3 and the end head and completely covers the region of the double faced adhesive tape 7.
The membrane 1 is continuously wound on the central tube 3 until the whole reverse osmosis household membrane element is completely rolled, then the membrane 5 and the membrane 1 which cover the two ends of the central tube 3 are cut off along the cutting edge line of the outer side of the double faced adhesive tape 7 on the central tube 3, and the cut ends are directly peeled off from the central tube 3 by adopting manual bare hands or a mechanical automation mode. The coating edge position of the polyurethane glue is 1-5mm away from the double faced adhesive tape 7. At the end of the center tube 3 at the time of cutting, the cut-off line 6 is located between the double-sided tape 7 and the seal groove 4 closest to the double-sided tape 7.
The width of the double faced adhesive tape 7 can be adjusted according to actual needs, the width of the double faced adhesive tape 7 can be 1-1.5 mm, after the double faced adhesive tape is fixed by using the wide transparent adhesive tape, the film 1 can be effectively prevented from being scattered, and glue can be effectively prevented from being scattered to the cutting ends 5 on two sides of the central tube 3.
The above embodiments are only preferred embodiments of the present invention, and are not limiting to the technical solutions of the present invention, and any technical solution that can be implemented on the basis of the above embodiments without inventive effort should be considered as falling within the scope of protection of the patent claims of the present invention.
Claims (6)
1. A pretreatment device for a central tube of a reverse osmosis household membrane element is characterized by comprising a central tube (3), a membrane (1), a film (5) and double-sided adhesive tapes (7), wherein the films (5) are wound at two ends of the central tube (3), the films (5) are adhered to the end part of the central tube (3) through the double-sided adhesive tapes (7), one side of each film (5) is aligned with the edge of the central tube (3), the membrane (1) is wound on the central tube (3) and covers part of the films (5), and the wound reverse osmosis household membrane element directly cuts off part of the films (5) and part of the films (5) covering the two ends of the central tube (3).
2. The pretreatment device for the central tube of the reverse osmosis household membrane element according to claim 1, wherein the width of the double faced adhesive tape (7) is 1-1.5 mm.
3. A pretreatment device for central tubes of reverse osmosis household membrane elements according to claim 1, characterized in that the width of the membrane (5) is 25-35 mm.
4. A pretreatment device for a central tube of a reverse osmosis household membrane element according to claim 1, wherein the membrane (5) is made of a nonwoven material, a nanofiltration membrane material, a silicone paper or a plastic membrane material.
5. A pretreatment method for a central tube of a reverse osmosis household membrane element is characterized in that before rolling the reverse osmosis household membrane element, a double faced adhesive tape (7) is used for winding a membrane (5) of 1-2 circles at two ends of a central tube (3) respectively, the double faced adhesive tape (7) is adhered to one side of the membrane (5) close to the central tube (3), and one side of the membrane (5) is aligned with the edge of the central tube (3); winding and fixing the film (5) by using wide transparent adhesive tape, wherein the wide transparent adhesive tape completely covers the region of the double-sided adhesive tape (7); the membrane (1) is rolled on the outer sides of the central tube (3), the membrane (5) and the wide transparent adhesive, polyurethane glue used for fixing the membrane (1) is coated on the central tube (3) between the two double-sided adhesive tapes (7), the membrane (1) is continuously wound on the central tube (3) until the whole reverse osmosis household membrane element is rolled, the membrane (5) and the membrane (1) wrapping the two ends of the central tube (3) are cut off along the cutting line on the outer sides of the double-sided adhesive tapes (7) on the central tube (3), and the cut ends are directly peeled off from the central tube (3) by adopting a manual bare hand or mechanical automation mode.
6. A pretreatment method for a central tube of a reverse osmosis domestic membrane element according to claim 5, wherein the coating edge position of the polyurethane glue is spaced from the double-sided adhesive tape (7) by 1-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711155529.0A CN109795909B (en) | 2017-11-16 | 2017-11-16 | Pretreatment device and method for central tube of reverse osmosis household membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711155529.0A CN109795909B (en) | 2017-11-16 | 2017-11-16 | Pretreatment device and method for central tube of reverse osmosis household membrane element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109795909A CN109795909A (en) | 2019-05-24 |
| CN109795909B true CN109795909B (en) | 2023-04-25 |
Family
ID=66555099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711155529.0A Active CN109795909B (en) | 2017-11-16 | 2017-11-16 | Pretreatment device and method for central tube of reverse osmosis household membrane element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109795909B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201147743Y (en) * | 2008-01-25 | 2008-11-12 | 廖有为 | Special adhesive tape for mask for spraying polyurea elastic body coating on pickup lining |
| TW201247297A (en) * | 2011-03-29 | 2012-12-01 | Toray Industries | Spiral type separation membrane element and method for producing the same |
| CN102553449B (en) * | 2011-11-08 | 2013-10-16 | 宁波灏钻科技有限公司 | Reverse osmosis membrane element rolling method |
| WO2013125505A1 (en) * | 2012-02-24 | 2013-08-29 | 東レ株式会社 | Separation membrane and separation membrane element |
| CN102908901B (en) * | 2012-07-20 | 2014-11-26 | 艾欧史密斯（上海）水处理产品有限公司 | Method for manufacturing spiral-wound reverse osmosis membrane component |
| CN102847441A (en) * | 2012-08-10 | 2013-01-02 | 艾欧史密斯（上海）水处理产品有限公司 | Reverse osmosis film element |
| CN206315682U (en) * | 2016-12-01 | 2017-07-11 | 佛山市美的清湖净水设备有限公司 | Water outlet pipe, reverse osmosis membrane element and reverse osmosis filter element |
| CN106905870A (en) * | 2017-02-15 | 2017-06-30 | 上海巍肯环保科技有限公司 | The Protection glue band and its production technology of a kind of reverse-osmosis membrane element |
-
2017
- 2017-11-16 CN CN201711155529.0A patent/CN109795909B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109795909A (en) | 2019-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104369226A (en) | Waste recovery mechanism and protective film cutting module of waste recovery mechanism | |
| CN204508383U (en) | A kind of sawtooth adhesive tape cutting apparatus | |
| CN207684579U (en) | A kind of quick roll-switching device of lithium battery rubberizing | |
| CN109795909B (en) | Pretreatment device and method for central tube of reverse osmosis household membrane element | |
| CN205772241U (en) | Film splitter | |
| CN102009868A (en) | Cutting process of adhesive sticker material | |
| MX2019005056A (en) | Equipment for attaching an optical fiber to a reel. | |
| CN207757751U (en) | A kind of indirect die-cutting apparatus | |
| CN205071616U (en) | Material area links up subassembly | |
| KR20130019516A (en) | Dust removing tape and method for manufacturing thereof | |
| CN203255783U (en) | Adhesive tape with cutter and idler wheel | |
| CN204490181U (en) | A kind of tape sticker adsorption device | |
| CN206188726U (en) | Double faced adhesive tape and manufacture equipment thereof | |
| CN205416728U (en) | With paper label flow direction of packaging line | |
| CN204808759U (en) | Label with compound membrane | |
| CN202920660U (en) | Easy-to-uncover plaster | |
| GB865165A (en) | Improvements in or relating to the production of strips of pressure sensitive labels | |
| CN208082236U (en) | Hollow fiber curtain type membrane component | |
| KR102451798B1 (en) | Double-sided adhesive tape manufacturing method and system that are easy to divide | |
| CN205459358U (en) | Medical aseptic applying ointment or plaster | |
| CN106743939A (en) | A kind of adhesive tape tears and takes device | |
| GB994410A (en) | Improvements in and relating to solder for use in the jointing of pipes | |
| CN204221828U (en) | A kind of efficient cutting machine produced for adhesive tape paper tube | |
| CN204568961U (en) | A kind of easy tear tape | |
| CN222757578U (en) | Trade a roll preprocessing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |