CN1148639A - Insertion-tube type spinning nozzle head for voided film - Google Patents
Insertion-tube type spinning nozzle head for voided film Download PDFInfo
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- CN1148639A CN1148639A CN 96109016 CN96109016A CN1148639A CN 1148639 A CN1148639 A CN 1148639A CN 96109016 CN96109016 CN 96109016 CN 96109016 A CN96109016 A CN 96109016A CN 1148639 A CN1148639 A CN 1148639A
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Abstract
The present invention relates to an insert tube type spinneret for spinning hollow film, and is characterized by that its tube holder is changed into the form of combination body composed of cone body and circular cylinder, and its correspondent tube holder hole matched with said tube holder is changed into stepped hole, and when both are mounted, the cone body of the tube holder is contacted with the shoulder of the stepped hole of the tube holder hole. Its assembling and regulation method includes the following steps: firstly, fixing spinneret components A and B; regulating concentricity of the insert tube and jet orifice, then mounting spinneret component C. Said invention can effectively ensure product quality, and can reduce production cost.
Description
The present invention relates to the chemical fibre spinning nozzle, be specially and spin hollow-fibre membrane with inserting tubular type spinning nozzle and adjustment technology thereof.
Spinning nozzle is the key component during chemical fibre is made.Its quality quality is directly connected to the quality of institute's spinning product.Spinning hollow-fibre membrane (hereinafter to be referred as hollow membrane), the general employing inserted the tubular type spinning nozzle.Its operation principle be in inserting pipe by interior solidification liquid, forming the cavity of hollow membrane, spray the outer wall that spinning solution then forms hollow membrane inserting between all around outer and spinneret orifice of pipe.Therefore, insert the accuracy of pipe, or say the accuracy of inserting tube hub and spinneret orifice centres degree, will be directly connected to the uniformity of spinning hollow membrane wall thickness in the spinneret orifice center.Described accuracy or say that concentricity is good more, the hollow membrane wall thickness that spins out is even more, and quality is just good more.
The insertion tubular type spinning nozzle that uses is limit because of it inserts the tube socket structure at present, makes the insertion pipe non-adjustable substantially in the center of spinneret orifice, influences the quality of product.For example, " the adjustable hollow-fibre membrane spinning head " of Chinese patent 92215496.1 reports, though the monoblock type spinning nozzle is changed into structure " suit the nozzle block of having riveted jet pipe on the nozzle boss ", also only play the purpose of " transposing, adjustment, interchangeability are good ", and for the no effect in center of inserting pipe and spinneret orifice, or say non-adjustable; Again for example, " spinning nozzle of production different wall hollow-fibre membrane " of European patent EP 88101406.2 reports, only be to change insert pipe as the exchangeable that connects with screw into, rely on the different inside and outside change in size of inserting pipes and solve the problem of production different wall hollow-fibre membrane with the matching relationship of spinneret orifice diameter.In other words, all do not relate in the prior art or the adjustment problem of unresolved insertion pipe and spinneret orifice concentricity, though and the structural design theory of above-mentioned patent can guarantee the concentricity of interior pipe (inserting pipe) outer hole (spinneret orifice), but because the precision and the error of links such as boring, riveted joint, suit, connection, the capital make spinning nozzle in actual manufacture process, produce in the decentraction in hole outside the pipe, thereby do not reach ideal effect.For the porous spinning nozzle, this problem is more outstanding.The structure and the characteristics of the article report porous spinning nozzle that " Tianjin Textile Industry College journal " in second phase nineteen ninety " hollow-fibre membrane with the development of inserting tubular type porous spinnerets ": although it has adopted shop bolt and elongated trip bolt that nozzle component A, B, C are assembled into integral body, and emphasized the precision problem of manufacturing technique, but its structural design make in the concentricity in the outer hole of pipe still non-adjustable.To adjust the position of inserting pipe in each spinneret orifice one by one, the concentricity that guarantees each hole is very difficult especially, and the hole in the porous nozzle has problem can influence the yarn quality that in other holes, therefore in the reality for ensuring the quality of products, have to use the single hole shower nozzle, for increasing output, have to achieve the goal by increase equipment tricks.Production cost significantly improves.This not only influences product quality, and has limited the suitability for industrialized production of hollow membrane.Therefore, can the accurate porous spinning nozzle of adjusting concentricity be to raise the efficiency, reduce cost necessary key component of large-scale production hollow membrane and key technology.
The objective of the invention is to overcome the shortcoming of prior art, provide a kind of easy accent to insert the spinning nozzle and the adjustment technology thereof of pipe and spinneret orifice concentricity, to improve the hollow membrane wall thickness uniformity, this technology is specially adapted to the manufacturing of porous spinning nozzle, adjusts and uses, help reducing cost significantly, raise the efficiency, ensure the quality of products and suitability for industrialized production.
The objective of the invention is following realization: comprise on the insertion tubular type spinning nozzle basis that parts such as inserting pipe, base and nozzle component constitute existing, it is cone and cylinder or the combination bodily form that contains the cylinder composition that emphasis improves original cylinder bodily form base, and original cylindrical base hole is improved to stairstepping base hole, when being installed in described base on the described base hole, the cone of base part contacts with the stepped bore shoulder in base hole.This base and design of base hole shape and installation method thereof, can utilize the cylinder that beats base easily or contain the end section of cylinder composition, make the cone conical surface and shoulder hole shoulder produce micro-slippage, thereby the concentricity of inserting tube hub and spinneret orifice center is accurately adjusted, the wall thickness that guarantees institute's spun articles is even, realizes purpose of the present invention.
Base of the present invention and base pore structure cooperatively interact, and are easy to adjust, and this is that cylindrical base and base pore structure are difficult to accomplish in the prior art.Except the improvement of planform design, the assembling method of adjustment of spinning nozzle of the prior art makes that also the concentricity of inserting pipe and spinneret orifice is difficult for adjusting and guaranteeing.The assembling method of adjustment of the spinning nozzle of prior art is: (1) will install the base that inserts pipe and be installed in the base hole of nozzle component B; (2) adjust the position of insertion pipe in the base hole, make it placed in the middle; (3) with screw nozzle component B and C are assembled into one; Nozzle component A is combined on nozzle component B, the C assembly, checks the concentricity of inserting pipe and spinneret orifice; (4) remove nozzle component A, with the method for knocking the base head end, adjust and insert pipe and spinneret orifice concentricity, (3) (4) step repeated multiple times is up to satisfaction; (5) with screw nozzle component A and B, C are formed spinning nozzle.The defective of this assembling method of adjustment is, because spinneret orifice base hole, during punching and the machined trueness error or the tolerance of nozzle component itself, and base processing and trueness error or tolerance when installing, cause above-mentioned (3) step, be difficult to obtain promising result, particularly for porous nozzle.And after above-mentioned (4) step finishes, because the degree of tightness deviation that is produced when screw hole machining accuracy error or tolerance and trip bolt, the result in (3) step is worsened, sometimes the screw of having to unload after removing nozzle component A row being adjusted again, is reinstalled, so that repeated multiple times, may not be satisfied with, particularly porous nozzle is possible satisfactory hardly.Therefore in fact, have to use the single hole shower nozzle,, have to realize that by increase equipment tricks economic benefit is very poor for increasing output and ensuring the quality of products.
Spinning nozzle of the present invention also improves the assembling method of adjustment, the steps include:
(1) will install or be installed into one by one in the described base hole 4 with the base 2 that inserts pipe 1;
(2) adjust the position of insertion pipe 1 in base hole 4, make it placed in the middle; Its improvement is characterised in that
(3) with screw 9 nozzle component A, B are fitted together;
(4) use the method for knocking base 2 tail ends, adjust or adjust one by one the concentricity of insertion pipe 1 and spinneret orifice 3, until satisfaction;
(5) with screw 10 nozzle component C and B are assembled into spinning nozzle.Method of adjustment of the present invention, earlier nozzle component A, B are fitted together, all processing installation accuracy errors or tolerance all are reflected on the concentricity of inserting pipe and spinneret orifice practically, then with the method for knocking the base tail end, adjust or adjust one by one both concentricitys, after accurate satisfaction, assemble upper nozzle assembly C again, finish the assembling adjustment of product spinning nozzle.For program is adjusted in this assembling, on the package assembly of nozzle component A, B, C, do corresponding the improvement, promptly connect nozzle component A and B and B and C respectively with two groups of connectors.The present invention assembles that the method for adjustment step is few, and usability is strong, and it is convenient to adjust, and the accuracy height is specially adapted to porous nozzle, and with the improvement of aforementioned base and base pore structure jointly for realizing that the object of the invention provides technical guarantee.Its good effect clearly is reflected in product qualitatively, and for the porous spinning nozzle, then can improve output exponentially and reduce production costs exponentially, be suitable for suitability for industrialized production, thereby make this high-tech product of hollow membrane, with more excellent quality, more honest and cleaner price enters in association area and the industry and brings benefits to the people.
Below in conjunction with embodiment and accompanying drawing thereof in detail the present invention is described in detail.
Fig. 1 is a single hole spinning nozzle overall structure vertical section schematic diagram of the present invention;
Fig. 2 is a porous spinning nozzle overall structure vertical section schematic diagram of the present invention;
Fig. 3 is the K-K cutaway view among Fig. 2, and it is a spinning nozzle overall structure schematic cross-sectional view, has also represented the planform of nozzle component B simultaneously;
Fig. 4 is the vertical view of nozzle component C, has represented its planform;
Fig. 5 is the local enlarged diagram that base 2 cooperates with base hole 4;
Fig. 6 contains the schematic cross-sectional view that cylinder becomes fractal;
Fig. 7 is that the present invention inserts pipe 1 and the alternative structural representation of base 2 usefulness syringe needles 17;
Fig. 8 is that spinning nozzle integral body of the present invention is overlooked outside drawing, has also represented the planform of nozzle component A simultaneously;
The existing hollow membrane that spins uses the concrete shape and structure that inserts the tubular type spinning nozzle varied, the present invention adopts the nozzle component A (referring to Fig. 1) that is shaped on spinneret orifice 3 and material fluid bath 15, and the nozzle component B that is shaped on feed liquid hole 6 and base hole 4 constitutes with the parts such as nozzle component C that are shaped on core liquid hole 5.The base 2 that band inserts pipe 1 is installed in the base hole 4 of nozzle component B, nozzle component A, B, three of C is linked together, constitute whole spinning nozzle with screw 4.Spinning nozzle emphasis of the present invention is improved to be, former cylinder base is improved to cone and cylinder or contains the combination bodily form of cylinder composition, correspondingly the base hole 4 of matching with it is changed into stepped bore.What is called contains the body of cylinder composition, is meant that the cross section is the staggered shape (referring to Fig. 6) of joining successively of plurality of sections (as four or six sections) circular arc and straight line.Cylinder or to contain cylinder to become fractal partly to be in order combining with the large aperture part in stairstepping base hole 4 on the nozzle component B with fixing position of inserting pipe 1, has simultaneously also correspondingly determined to insert the position of pipe 1 in spinneret orifice 3.The cone of base 2 partly is for the small-bore part with stairstepping base hole 4 matches, and takes on 11 places in stepped bore and contact, and both form the round wire contact.Base 2 adopts steel material (as brass), and nozzle component A, B, C all adopt stainless steel.The cylinder of base 2 or contain the cylinder component portion and the large aperture part of described stairstepping base 4 adopts interference fit, so that it is fixed to insert pipe 1, positioning stablity.Simultaneously core liquid is blocked at 4 places, base hole, has only through inserting the path that pipe 1 flows out.When base 2 adopts the body that contains the cylinder composition, the cone part of knocking in base 2 also can be takeed on 11 places at shoulder hole and constitute closely contact, forms effectively blocking-up ring, prevents that core liquid, feed liquid from mixing in shower nozzle, influences ordinary production.In order more effectively to accomplish this point, also can take on 11 places and increase teflon seal ring 16 (referring to by 5,7) at shoulder hole, ring size is consistent with the small pore size design in base hole 4 in it, but the contacted place of cone part of it and base 2, because tapering but is the diameter dimension bigger than base aperture size, thereby has better sealing effectiveness.The outer ring size of sealing ring 16 is consistent with the large aperture size design in base hole 4.
The assembling method of adjustment of spinning nozzle of the present invention is also improved, and the steps include:
(1) will install or be installed into one by one in the described base hole 4 with the base 2 that inserts pipe 1;
(2) adjust the position of insertion pipe 1 in base hole 4, make it placed in the middle; Because structural design of the present invention can be used unique method, promptly
(3) with screw 9 nozzle component A, B are fitted together;
(4) use the method for knocking base 2 tail ends, adjust or adjust one by one the concentricity of insertion pipe 1 and spinneret orifice 3, until satisfaction;
(5) with screw 10 nozzle component C and B are assembled into spinning nozzle.
Assembling method of adjustment of the present invention is saved the with strong points of step and time, particularly method of adjustment than original method, shoots the arrow at the target.This structure is particularly suited for the porous spinning nozzle and inserts adjusting separately one by one of pipe 1 and spinneret orifice 3 concentricitys, guarantees that the quality of every hole spinning is uniform and stable reliable.Use when this method not only is suitable for just adorning product, and be suitable for the use of cleaning, adjustment and maintenance shower nozzle in the production process.
The better improvement of aforementioned base 2 and base hole 4 structural feature and assembling method of adjustment has been arranged just, make the industrialized hollow membrane that spins not only can make the single hole shower nozzle with spinning nozzle, and can be made into the porous nozzle in 2-12 hole, the sales volume that how much depends on specific products market of nozzle hole number and the ability of corollary equipment.What present embodiment provided is six hole spinning nozzles, the accompanying drawing of giving also by six hole spinning nozzles designs (referring to Fig. 2,3,4,8).The porous nozzle that changes over other numbers only needs the simple number of changing nozzle (comprise base 2, insert pipe 1, base hole 4, spinneret orifice 3) to get final product, and other structures are not changed.But for making six holes can obtain core liquid and being evenly distributed, design has the core liquid distributing trough 7 that communicates with core liquid hole 5 on nozzle component C.The center line of core liquid distributing trough 7 is consistent with base hole 4 center lines or say concentric (referring to Fig. 2,4).As a same reason, for making six hole feed liquid distributed uniform, feed liquid hole 6 is changed out in nozzle component C in the heart, correspondingly on nozzle component B, also have feed liquid hole 8, so that feed liquid enters the center of the material fluid bath 15 on the nozzle component A.The feed liquid of position input helps spinning quality (referring to Fig. 2,3) for the equidistant isobaric constant speed in six holes thus.Another feature of the present invention is to be shaped on to all corresponding coupling boss or groove (referring to Fig. 1-4) on nozzle component A, B, C, so that the location cooperates and sealing better between nozzle component A, B, the C.It is that nozzle component A is connected with connector 9 (as screw) with B that the present invention also has a feature; Nozzle component C is connected with connector 10 (as screw) with B, but makes nozzle component A, B, C constitute the porous spinning nozzle of an aligning easy to assemble thus.
Also it should be noted that: the present invention utilizes the nozzle component A that changes different apertures spinneret orifice 3; Or change the insertion pipe 1 (containing base 2) in different apertures; Or both change simultaneously, can produce with the internal diameter various outer diameter or with external diameter different inner diameters or interior external diameter hollow membrane all inequality, also can say the hollow membrane that is suitable for producing all size inner pressed or external-compression type, and because feature structure of the present invention and method of adjustment, still can guarantee under the condition of technology adjustment and change the concentricity unanimity of external diameter of pipe in making easily.
The course of work of porous spinning nozzle of the present invention is as follows: core liquid enters core liquid distributing trough 7 by core liquid hole 5, inserts pipe 1 ejection through each.When arts demand core liquid changes core gas into, the course of work too, or say structure of the present invention to insert logical liquid in the pipe 1, ventilation is all applicable; Meanwhile, feed liquid (stoste) enters material fluid bath 15 through feed liquid hole 6 and 8, and by spinneret orifice 3 ejections, both form high-quality hollow membrane (referring to Fig. 1,2,5,7) in the instantaneous remittance mutually in exit separately.
Claims (6)
1. one kind is spun hollow-fibre membrane with inserting the tubular type spinning nozzle, it comprises inserts pipe (1), base (2), be shaped on the nozzle component (A) of spinneret orifice (3) and material fluid bath (5), be shaped on the nozzle component (B) of feed liquid hole (6) and base hole (4) and have the nozzle component parts such as (C) in core liquid hole (5), after inserting pipe (1) and base (2) and being installed in the base hole (4) of nozzle component (B), by connector with nozzle component (A), (B), (C) be assembled into spinning nozzle integral body, it is characterized in that described base (2) is cone and cylinder or the composite entity that contains the cylinder composition, the base hole (4) of described nozzle component (B) is the shoulder hole (4) that is complementary with base (2), base (2) is installed in base hole (4) when interior, and the cone part of base (2) contacts with the shoulder hole shoulder (11) of base hole (4).
2. spinning nozzle according to claim 1 is characterized in that described insertion pipe (1) and base (2) adopt improved syringe needle (17).
3. spinning nozzle according to claim 2 is characterized in that making the porous spinning nozzle in 2-12 hole with the structure of described base (2) and base hole (4); On nozzle component (C), have the core liquid distributing trough (7) that communicates with core liquid hole (5).
4. spinning nozzle according to claim 2 is characterized in that making the porous spinning nozzle in six holes with the structure of described base (2) and base hole (4).
5. according to claim 1,2,3 or 4 described spinning nozzles, it is characterized in that described nozzle component (A), (B), be shaped on boss or groove to (C) all corresponding coupling, described nozzle component (A), (B) and (B), (C) are connected with (10) by screw (9) respectively.
6. according to the assembling method of adjustment of the described spinning nozzle of claim 5:
(1) will install or be installed into one by one in the described base hole (4) with the base (2) that inserts pipe (1);
(2) adjust insertion pipe (1) position in base hole (4), make it placed in the middle; It is characterized in that
(3) with screw (9) nozzle component (A), (B) are fitted together;
(4) use the method for knocking base (2) tail end, adjust or adjust one by one and insert the concentricity of managing (1) and shower nozzle hole (3), until satisfaction;
(5) with screw (10) with nozzle component (C) with (B) be assembled into spinning nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96109016A CN1059477C (en) | 1996-07-24 | 1996-07-24 | Insertion-tube type spinning nozzle head for voided film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96109016A CN1059477C (en) | 1996-07-24 | 1996-07-24 | Insertion-tube type spinning nozzle head for voided film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1148639A true CN1148639A (en) | 1997-04-30 |
| CN1059477C CN1059477C (en) | 2000-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96109016A Expired - Fee Related CN1059477C (en) | 1996-07-24 | 1996-07-24 | Insertion-tube type spinning nozzle head for voided film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1059477C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300391C (en) * | 2000-12-08 | 2007-02-14 | 液体空气乔治洛德方法利用和研究的具有监督和管理委员会的有限公司 | Spinnerette assembly for forming hollow fibers |
| CN101879492A (en) * | 2010-05-27 | 2010-11-10 | 清华大学 | Multi-nozzle injection device used for three-dimensional controlled forming machine of complex organ precursor |
| CN102107121A (en) * | 2009-12-29 | 2011-06-29 | 林金建 | Method for preparing hollow fiber microporous membrane by thermally-induced phase separation method |
| CN101935891B (en) * | 2009-06-29 | 2012-04-04 | 吕晓龙 | Hollow fiber spinning nozzle of insertion tube type |
| CN103710766A (en) * | 2013-12-12 | 2014-04-09 | 北京化工大学 | Hollow fiber spray nozzle allowing adjusting hollow core tube |
| CN104357927A (en) * | 2014-11-27 | 2015-02-18 | 天津华清健坤膜科技有限公司 | Spinning nozzle |
| CN107366033A (en) * | 2017-08-28 | 2017-11-21 | 东华大学 | A kind of combined spinneret plate |
| CN108330549A (en) * | 2017-01-19 | 2018-07-27 | 张凡 | A kind of ladder-like electrostatic spinning nozzle and its electrospinning process |
| CN109939887A (en) * | 2019-04-12 | 2019-06-28 | 虞伟明 | A kind of practical curtain coater with anti-blockage function for floor production |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021668B (en) * | 2011-01-13 | 2012-04-18 | 南通大学 | Embedded-needle spinneret for hollow fiber spinning |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2119430U (en) * | 1992-05-02 | 1992-10-21 | 中国纺织大学 | Adjustable hollow tunica fibrosa spinneret |
| CN2167997Y (en) * | 1993-08-28 | 1994-06-08 | 天津纺织工学院(膜天)膜技术工程公司 | Hollow membrane inserting tubelike spinning nozzle |
-
1996
- 1996-07-24 CN CN96109016A patent/CN1059477C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300391C (en) * | 2000-12-08 | 2007-02-14 | 液体空气乔治洛德方法利用和研究的具有监督和管理委员会的有限公司 | Spinnerette assembly for forming hollow fibers |
| CN101935891B (en) * | 2009-06-29 | 2012-04-04 | 吕晓龙 | Hollow fiber spinning nozzle of insertion tube type |
| CN102107121A (en) * | 2009-12-29 | 2011-06-29 | 林金建 | Method for preparing hollow fiber microporous membrane by thermally-induced phase separation method |
| CN101879492A (en) * | 2010-05-27 | 2010-11-10 | 清华大学 | Multi-nozzle injection device used for three-dimensional controlled forming machine of complex organ precursor |
| CN103710766A (en) * | 2013-12-12 | 2014-04-09 | 北京化工大学 | Hollow fiber spray nozzle allowing adjusting hollow core tube |
| CN104357927A (en) * | 2014-11-27 | 2015-02-18 | 天津华清健坤膜科技有限公司 | Spinning nozzle |
| CN108330549A (en) * | 2017-01-19 | 2018-07-27 | 张凡 | A kind of ladder-like electrostatic spinning nozzle and its electrospinning process |
| CN107366033A (en) * | 2017-08-28 | 2017-11-21 | 东华大学 | A kind of combined spinneret plate |
| CN109939887A (en) * | 2019-04-12 | 2019-06-28 | 虞伟明 | A kind of practical curtain coater with anti-blockage function for floor production |
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| Publication number | Publication date |
|---|---|
| CN1059477C (en) | 2000-12-13 |
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