CN1044499C - Nozzle plate for spinning - Google Patents
Nozzle plate for spinning Download PDFInfo
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- CN1044499C CN1044499C CN94113080A CN94113080A CN1044499C CN 1044499 C CN1044499 C CN 1044499C CN 94113080 A CN94113080 A CN 94113080A CN 94113080 A CN94113080 A CN 94113080A CN 1044499 C CN1044499 C CN 1044499C
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- section
- fluid
- spinneret orifice
- spinneret
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
- D01D4/027—Spinnerettes containing inserts
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nozzles (AREA)
Abstract
A nozzle plate for spinning has a plurality of spinning holes, each spinning hole comprising a fluid-introducing portion and a fluid-discharging portion having a small inner diameter from which molten fluid sent from the fluid-introducing portion is discharged. At least a part of the inner surface of each spinning hole, which is connected to an entrance of the fluid-discharging portion, is formed as a three-dimensional smoothly curved surface so that a form line of the entrance of the fluid-discharging portion substantially does not appear. A portion causing residence of the molten fluid can be removed, thereby achieving an extremely smooth flow, and the pressure loss can be considerably suppressed.
Description
The present invention relates to a kind of spinnerets of spinning, particularly a kind ofly can prevent the fluid retention on spinnerets and can reduce the spinning spinneret that pressure that spinnerets causes falls.
Usually, have some spinneret orifices on the spinnerets of a spinning, these spinneret orifices are formed at steel, the disc made of stainless steel particularly, and have certain shape.Cross section at spun yarn is under the situation of circle, spinneret orifice is exactly for example Figure 17 or shape shown in Figure 180, at the cross section of spun yarn be (cross section be not circular and for example be Y type, star-like, cross and triangular form) under follow-on situation, spinneret orifice is exactly for example Figure 19 and shape shown in Figure 20.
Figure 17 or Figure 19 represented to form a spinning spinnerets disc 101 or 111 the part of vertical cross-section, and on disc 101 or 111, have the spinneret orifice 102 or 112 of predetermined quantity.Arrow has indicated the flow direction of melt liquid as the artificial resin that dissolves, each spinneret orifice 102 or 112 has comprised that a fluid imports opening 103 or 113, the cross section of opening is circular, the inner surface of spinneret orifice is conical, fluid introduction segment 104 or 114 is straight holes, its cross section is circular, contraction section 105 or 115 cross section are circular, its inner surface is conical, and the discharge section 106 of fluid or 116 has identical cross-section on its bearing of trend (on promptly axial).When using the long filament of circular cross section, the cross section of the discharge section of fluid is circular as shown in figure 18, and when being used for the yarn of modified cross section, the cross section of the discharge section of fluid is the Y type as shown in figure 20.
Need the minute diameter (maximum gauge in hole) in high accuracy and hole must be processed to about 0.1 in the 1mm scope because process the fluid discharge section 106 or 116 at spinneret orifice 102 or 112 places, particularly the spinnerets of modified cross section long filament.Because the cross section in hole is follow-on, therefore fluid discharge section 106 or 116 is processed with the discharge machine usually, promptly the part more than contraction section 105 or 115 is for example to utilize boring method to process and carry out finishing with the fraising method, and fluid is discharged section 106 or 116 and adopted discharge machines to process.
Its spinneret orifice is produced with this processing method in common spinnerets, yet has following problem:
At the spinnerets of making the long filament of circular cross section as Figure 17 and shown in Figure 180 being used for, because the shape of the vertical cross-section of spinneret orifice as shown in figure 17 102 is made up of broken line, therefore, the fluid of fusion is difficult to carry out flow gently, the delay special on the position of broken line, that this has just increased the pressure loss and has caused fluid easily partially.
This problem becomes more serious at the spinnerets of the long filament that is used for the modified cross section shown in Figure 19 and 20, promptly in process, upstream end in the discharge section 116 of fluid, promptly the intersection between contraction section 115 and fluid discharge section 116 has formed a planar section 117 inevitably.And after fluid discharge section 116 processes, still also there is this planar section 117 as shown in the figure.Because this planar section 117 almost is a plane perpendicular to the melt flow stream flow direction, therefore be easy to take place the delay of melt flow stream and produce very big pressure fall at this position.
The quality problems of the trouble of the cut-out of for example long filament that the delay of melt flow stream that troubling is can cause in process of production and/or the long filament of being produced.If the pressure loss increases, required corresponding the increasing of pressure meeting of the upstream end of spinnerets, the required anti-pressure ability of spinnerets also can increase, and the anti-pressure ability of the upstream portion of spinnerets also will strengthen.
In addition, in the common process of being mentioned in front, because fluid is discharged section 106 or 116 and must side by side be processed with Electrical Discharge Machine, therefore this processing needs heavy operation and long time, the manufacturing expense of this spinnerets will increase, and discharges the deviation that is easy to cause on the section 106 or 116 on the diameter accuracy at the fluid after each fine finishining.If deviation increases, will cause the long filament quality problems, on producing, give rise to trouble.
An object of the present invention is to provide a spinning spinneret that has many spinneret orifices, can prevent the unnecessary delay of melt flow stream in spinneret orifice substantially, and can drop to minimum to the pressure loss that spinneret orifice causes.
Another object of the present invention provides a kind of spinning spinneret, the processing of spinneret orifice is become easily, and can shorten process time significantly, reduces manufacturing expense.
In order to finish these purposes, spinning spinneret of the present invention has many spinneret orifices, and each spinneret orifice comprises that one introduces the fluid introduction segment and the fluid discharge section of melt flow stream, wherein the internal diameter of fluid discharge section is less than the internal diameter of fluid introduction segment, and discharges the section discharge from the melt flow stream that the fluid introduction segment flows out at fluid.The feature of spinnerets is that the part of the inner surface of each spinneret orifice links to each other with the inlet of fluid discharge section on the flow direction of melt flow stream and formed the curved surface of a three-dimensional and do not formed the sideline in the porch of fluid discharge section basically at least.
That is to say, on general spinnerets, the vertical cross-section in hole is a broken line shape, and the inner surface of spinneret orifice of the present invention is made up of a level and smooth three-dimension curved surface (being a curve on vertical cross-section) that extends in the part that the inlet with fluid discharge section links to each other at least.Curved surface that this is three-dimensional and fluid are discharged the inlet smooth connection of section, do not form the sideline in the porch of fluid discharge section like this.
This spinnerets can be realized and create, and for example: the form with single ceramic spare has formed each spinneret orifice respectively, and these ceramic members are separately fixed at spray silk part for example on the combined hole of metal disc.
That is to say that spray silk part is to make as different elements with the element that forms spinneret orifice, these two kinds of element combinations with one another together.As the material that is used to form the spinneret orifice element, from heat resistance, resistance to pressure and mold, pottery is a kind of optimal material.For example, can obtain having the ceramic member that has spinneret orifice of required (three-dimension curved surface and other parts) shape by the mould for preparing a needle-like, wherein said needle-like mould has and the corresponding three-dimensional curve periphery of top three-dimension curved surface, use ceramic powder in the needle-like mould, to form a ceramic member (spraying injection molding) and this ceramic member of roasting as adopting, the correction manufacturing procedure that can add if necessary, injection molded for the precision that further improves the diameter of spinneret orifice.
Above-mentioned needle-like mould can be by for example making with the suitable steel material of machining.Though in the machining process of mould, an outer contour can indistinctly appear on the needle-like mould, but just can remove this line at an easy rate with the outer surface of quite little pressure polishing mould along this line, the outer surface of the needle-like mould that obtains does not thus form the sideline.When with the ceramic member powder in the needle-like mould during cast ceramic part, in the spinneret orifice that in the mold pottery, forms, discharge the intersection that section enters the mouth at required three-dimension curved surface and fluid basically and do not form the sideline.
The ceramic member that forms is thus inserted and is fixed in the combined hole of spray silk part, just obtained finishing a kind of spinnerets of the object of the invention.
In spinning spinneret of the present invention because the inner surface of spinneret orifice is made up of the smooth surface of a three-dimensional and this curved surface and liquid discharge section are connected smoothly, particularly the part inner surface of spinneret orifice on diameter be shrink and link to each other with inlet that fluid is discharged section, the fluid inlet of discharging section does not just form the sideline like this, and can not be formed on yet in the general spinnerets turn section rapidly or perpendicular to the plane of the flow direction of melt flow stream.Therefore, can realize the advection of melt flow stream, reduce the resistance of melt flow stream in the spinneret orifice, and because this advection can reduce the pressure loss that spinneret orifice causes widely.
Certainly, though the present invention is effectively for the spinnerets of circular cross section long filament, be to use the present invention for the spinnerets of the long filament that is used for the modified cross section, having significant more advantage.That is to say, application process at the spinnerets that is used for the modified long filament, because make melt flow stream produce the plane complete obiteration of being detained and the very big pressure loss occurring in the part as Figure 19 and the meeting that just above fluid discharge section, has shown in Figure 20, even this just can prevent fully that the part of melt flow stream on this position is detained and the fluid of fusion in the zone that the diameter of three-dimension curved surface shrinks also but the utmost point is mobile reposefully, therefore just reduced the pressure loss widely, the result can improve the quality of the long filament of producing with spinnerets of the present invention significantly.In addition,, therefore just reduced the pressure load that is added in the spinnerets Upstream section, also just increased their anti-pressure ability significantly because can reduce the pressure loss that spinnerets causes.
And, because making the element of spinneret orifice makes respectively with spray silk part, and because this element is made and is combined on the spray silk part by a kind of ceramic material, therefore can make spinneret orifice at an easy rate with required form, and shortened the manufacturing time of this spinnerets, reduced manufacturing expense.If the quantity of spinneret orifice increases, the resulting benefit of reduction expense will be more remarkable, and have under the situation of several thousand spinneret orifices at a spinnerets, and its manufacturing expense just can descend significantly.
Other purpose of the present invention, feature and advantage will sharpen understanding from the detailed description to most preferred embodiment of the present invention in conjunction with corresponding accompanying drawing.
To describe illustrated embodiments more of the present invention in conjunction with corresponding accompanying drawing now, only be to give an example rather than limitation of the invention below.
Fig. 1 is the plane of the spinning spinneret of first embodiment of the present invention.
The side view that Fig. 2 partly cuts open for spinnerets shown in Figure 1.
Fig. 3 is the partial vertical sectional view of the amplification of spinnerets shown in Figure 1.
Fig. 4 is the plane of the amplification of a spinneret orifice in the spinnerets shown in Figure 3.
Fig. 5 is the partial vertical sectional view of a spinnerets, and it has shown the shape of a kind of follow-on spinneret orifice of first embodiment.
Fig. 6 is the partial vertical sectional view of a spinnerets, and it has shown the shape of the another kind of follow-on spinneret orifice of first embodiment.
Fig. 7 is the floor map of a spinneret orifice, and it has shown an example that changes the shape of cross section of spinneret orifice.
Fig. 8 is the floor map of a spinneret orifice, and it has shown another example that changes the shape of cross section of spinneret orifice.
Fig. 9 is the floor map of another spinneret orifice.
Figure 10 is the partial vertical sectional view of a spinneret orifice.
Figure 11 is the plane that a fluid is discharged section.
Figure 12 discharges the plane of section for another fluid.
Figure 13 discharges the plane of section for another fluid.
Figure 14 is the plane of a spinning spinneret of second embodiment of the invention.
Figure 15 is the partial vertical sectional view of the amplification of spinnerets shown in Figure 14.
Figure 16 is the plane of the amplification of a spinneret orifice in the spinnerets shown in Figure 14.
Figure 17 is the partial vertical sectional view of an existing spinnerets.
Figure 18 is the plane of the amplification of a spinneret orifice in as shown in figure 17 the spinnerets.
Figure 19 is the partial vertical sectional view of another existing spinnerets.
Figure 20 is the plane of the amplification of a spinneret orifice in as shown in figure 19 the spinnerets.
Fig. 1 to Fig. 4 has provided the spinning spinneret of first embodiment of the present invention.In this embodiment, technology of the present invention has been applied on a kind of spinnerets that produces follow-on cross section long filament.In Fig. 1 and Fig. 2, spinnerets 1 comprises spray silk part 2 being made by a round metal diskware and many (having predetermined quantity) ceramic member 5 of arranging with certain spacing.Ceramic member 5 is combined in respectively in each corresponding hole 3 of spraying on the silk part 2.Each pottery 5 has a spinneret orifice 4 to be used for making the fluid of the fusion of importing to be sprayed into a threads at this.
Be not particularly limited the material of spray silk part 2, all can use, therefore also can use the stainless steel material that has been used for common spinnerets as long as possess any material of the required heat resistance of spinning spinneret, resistance to pressure and corrosion resistance.In addition, though spray silk part 2 is made by a round metal diskware in this embodiment, it also can be made by other material, and for example it can be made by separating the ceramic member that comes out of casting with ceramic member 5.
Be not particularly limited the material of ceramic member 5, for example can use to contain with aluminium oxide or zirconic ceramic material.In these materials, the ceramic material of zirconia series with high rigidity is best.
A spinneret orifice 4 is arranged in the ceramic member 5, and in this embodiment as illustrated in fig. 3 the periphery of ceramic member 5 be stair-stepping.In combined hole 3, the 3a section that matches with ceramic member is in the centre position of the plate thickness direction of spray silk part 2, epimere 3b in combined hole 3 and hypomere 3c diameter all greater than the diameter of the respective perimeter part of ceramic member 5.After each ceramic member 5 was inserted into each combined hole 3, the periphery of ceramic member 5 just matched with the cooperation section 3a of corresponding combined hole 3.Pour into a kind of heat-resisting inorganic adhesive and make its curing (slaking) in each slit that between the inner surface of the periphery of ceramic member 5 and combined hole 3, is limited then.By the pouring into and solidify of this heat-resisting inorganic adhesive 6, ceramic member 5 just is fixed in the combined hole 3 firmly, has also prevented the delay that fluid produces because of the slit at upper surface and lower surface place simultaneously.
This heat-resisting inorganic adhesive 6 is made up of a kind of inorganic powder, as glass dust or ceramic powder and a kind of heat resistant adhesive or a kind of bond.After pouring into, this heat-resisting first machine bonding agent 6 promptly solidifies this bonding agent by the heat treatment in stove (as thermostat or roaster).
Though be to use heat-resisting inorganic adhesive 6 bonding methods that ceramic member 5 is fixed in the combined hole 3 in this embodiment, also can adopt other fixing means.For example, can make in this way: promptly the shape of the total length in hole 3 is processed into peripheral basic identical with ceramic member, then each ceramic member 5 is press fit in each combined hole 3 and goes, perhaps also can make in this way promptly enlarges combined hole 3 by heating spray silk part 2, control at room temperature or be heated to the ceramic member 5 that sprays a part 2 same temperature and be inserted in the combined hole 3 of thermal expansion, ceramic member 5 just has been fixed in the combined hole 3 after the temperature that reduces a spray part 2 again.
In this embodiment, the shape of the spinneret orifice 4 that limited of each ceramic member 5 is shown in Fig. 3,4.As Fig. 3 draw, spinneret orifice 4 is to discharge section 10 by 8, one three-dimension curved surface sections 9 of 7, one fluid introduction segments of a fluid introducing port and fluid to form.Wherein fluid introducing port 7 is to be used for the fluid of a fusion (as the artificial resin of fusion) is introduced spinneret orifice, and its cross section is circular, and inner surface is conical; Fluid introduction segment 8 links to each other with fluid introducing port 7 and it is that a cross section is circular straight hole; Three-dimension curved surface section 9 links to each other with liquid introduction segment 8 and has three-dimensional smooth curved surface, and diameter diminished gradually when its downstream was extended; Fluid is discharged section 10 and is linked to each other with three-dimension curved surface section 9, and it is used for the discharge of the fluid of fusion, and it is a straight hole with improved shape of cross section.
In this embodiment, the improved cross section of fluid discharge section is a Y type cross section as shown in Figure 4.The surface configuration of three-dimension curved surface section 9 changes smoothly, and it links to each other smoothly with the inlet 10a of fluid discharge section 10.Therefore there is not the sideline basically at the inlet 10a place of fluid discharge section 10.Though in Fig. 3 for convenience of explanation for the purpose of drawn border between the various piece in hole of with dashed lines, and in fact these lines do not exist, in this embodiment, border between three-dimension curved surface section 9 and the fluid introduction segment 8 is to link to each other by a level and smooth curved surface, does not also have the sideline on this position.In addition, in this embodiment, the border between fluid introducing port 7 and the fluid introduction segment 8 also is a level and smooth curved surface (face with little circularity), and these faces all are to connect smoothly and transition on this position.
The shape that fluid is discharged the improvement cross section of section 10 is not limited to Y type recited above, can use the different shape of the long filament of the known improvement cross section that is shaped, for example: star-like, cross and triangular form.In the shape of arbitrary cross section, the discharge section of the introduction segment of fluid and fluid is connected smoothly by a three-dimension curved surface section at least, and therefore just there is not the sideline in the inlet in fluid discharge section.
That is to say that the peripheral shape of needle-like mould makes that the shape with spinneret orifice 4 is identical basically, use the needle-like mould,, around the needle-like mould, water and cast out ceramic member with ceramic powder (or mixture of ceramic powder and bonding agent).And, if necessary, can use meticulousr finishing.Therefore, can obtain having the high-precision ceramic spare 5 of required form spinneret orifice.
In the above embodiments, the fluid of fusion flows to fluid and discharges section 10 from fluid introduction segment 8 along three-dimension curved surface section 9.Because three-dimension curved surface section 9 is discharged section 10 and smoothly linked to each other with having fluid that the Y type improves cross section, therefore just there is not the sideline at the inlet 10a place that fluid is discharged section 10.Liquid streams that flow in the fluid discharge section 10 from fluid introduction segment 8 are extremely mild laminar flows.That is to say, because there is not to form the turnover streamline that exists in the existing common spinneret orifice, particularly there is not planar section shown in Figure 19 and 20, causes that therefore each the position complete obiteration of delay of fluid and level and smooth liquid stream can reduce the pressure loss widely at the upstream end of fluid section 10.
In addition, in this embodiment, because border between fluid importing opening 7 and the fluid introduction segment 8 and the border between fluid introduction segment 8 and the three-dimension curved surface section 9 all are level and smooth curved surfaces, therefore fluid can carry out flowing stably on these positions, and then has reduced the pressure loss.
In addition, have the high-precision and large batch of ceramic member 5 that has spinneret orifice 4, and, therefore can in short cycle, produce low-cost spinnerets 1 because ceramic member is produced respectively with spray silk part 2 because can produce at an easy rate.
Though the length of three-dimension curved surface section 9 is relatively shorter on the flow direction of melt flow stream in the above-described embodiments, can suitably change this length.For example, three-dimension curved surface section 9 can start from the central sections of fluid introduction segment 8 in the axial direction.And the three-dimension curved surface section can be a quite long face and discharge section 10 with fluid and link to each other.
In addition, as shown in the drawn improved spinneret orifice of Fig. 5, discharge sections 10 total length from the inlet (that is, fluid imports the outlet of opening 7) of fluid introduction segment to fluid and all can be three-dimension curved surface section 11.And then as shown in drawn another the improved spinneret orifice of Fig. 6, (being the inlet of spinnerets) that import the inlet of opening from fluid discharged sections 10 total length to fluid and all be can be three-dimension curved surface section 12.In embodiment as shown in Figure 5 and Figure 6, to count from the inlet of the introduction segment of fluid or the inlet that imports opening from fluid further, the shape of the cross section in hole can be modified to that to discharge the shape of cross section of section identical or approach analogous shape with fluid.In addition, though the sideline of drawn three-dimension curved surface section is a curve on vertical cross-section, the formation line of three-dimension curved surface section also can be straight line or approaches straight line on vertical cross-section.
Three-dimension curved surface section 9,11 or 12 length and flexibility (as the intensity of variation of cross section in the axial direction) can suitably design according to various factors, these factors are as the viscosity of melt flow stream, and melt flow stream is to the affinity and the spray silk speed of the element that forms spinneret orifice.
For example, Fig. 7 and Fig. 8 provide in the axial direction the example how (on the flow direction of melt flow stream) changes the cross section of spinneret orifice.In example as shown in Figure 7, import the entrance of opening at fluid, the cross section of spinneret orifice 13 be shaped as a circular 13a, it little by little becomes shape 13b, 13c and the 13d of improved cross section near the process of discharging the section place, and it becomes predetermined Y type 13e to discharge section at fluid.In example as shown in Figure 8, though the cross section that imports the porch spinneret orifice 14 of opening at fluid is circular 14a, one cross enter the mouth after, it has become the shape of improved cross section 14b soon.The shape of cross section has just become improved Y type cross section 14c relatively quickly then, and it passes through with it, and the similar Y type of shape cross section 14d links to each other with Y type cross section 14e.Represent the line of each cross section though in Fig. 7 and Fig. 8, drawn, needs only in order to illustrate, in fact other line does not occur outside the line except the inlet that the inlet and the fluid of spinneret orifice are discharged section.
In addition, Fig. 9 is another example of a spinneret orifice 15.In this example, the inner surface at spinneret orifice 15 has formed projection section 15a, 15b and 15c.Discharging section near fluid, these projections enlarge gradually, and the porch of discharging section at fluid forms a predetermined Y type cross section 15d.Equally, though the line of drawn in this embodiment expression projection section 15a, 15b and 15c, needs only in order to explain, in fact these lines are non-existent.
Though the different shape of spinneret orifice has been described above, following problem so just may take place in the shape of cross section of the long filament of degree of precision if desired.
Figure 10 represents that a fluid discharges the examples of the vertical cross-section of 16 and three-dimensional bent group sections 17 of section.In three-dimension curved surface section 17 zones, as shown by arrows, on the melt flow stream flow direction, improved cross section enlarges gradually, is particularly discharging in section 16 entrance areas near fluid.Therefore, shown as streamline F1 and F2, melt flow stream enters improved cross section (as Y type section) from different positions.Under this flow regime, arrive the glide path L that fluid is discharged the outlet of section 16
1With L
2In improved cross-section segments, differ from one another.If, the state of the improvement cross section of fluid discharge section 16 is Y type 18a as shown in figure 11, and the words that have constant width W at the extension 18b of the Y type 18a of extension in the radial direction of fluid discharge section 16, be greater than flow velocity near the flow velocity of the center of cross section so, so the difference of glide path L1 and L2 has just caused the difference of the pressure loss between them away from the center.Its result may make the cross-sectional deformation of long filament shown in dotted line 18c.
In order to prevent this distortion, it is effectively using following method, promptly in footpath that fluid is discharged section upwards, changes radially ductility of the width of its part that limits improved cross section and its.
For example, as shown in Figure 12, with respect to zone shown in Figure 10 " A ", the width W of the extension 19b of improved cross section 19a
1In " B " zone, almost be linear change.Like this, in the center near improved cross section 19a, width W
1Diminish gradually.In the a-quadrant,, make very effective in this way if the projection line of the vertical cross-section of three-dimension curved surface 17 is almost under the situation of straight line.In Figure 13, with respect to " A " zone shown in Figure 10, the width W of the extension 19d of improved cross section 19c
2Become a curve.Like this, in the center near improved cross section 19c, width W
2Diminish gradually.In " A " zone,, make very effective in this way if the projection line of the vertical cross-section of three-dimension curved surface 17 is under the situation of curve.Even there are the different of similar L1 and L2 in glide path, use these methods also can reduce the current difference that fluid is discharged section 16 exits, and can reduce the distortion of the cross section of long filament.
Figure 14 to Figure 16 has shown the spinning spinneret of second embodiment of the present invention.In this embodiment, a spinnerets of the long filament that is used for circular cross section is used for the present invention.Spinnerets 20 comprises a spray silk part 21 of being made by the round metal diskware and the element 22 that forms the some of spinneret orifice.Similar with first embodiment, spinneret orifice is made of ceramic component.With ceramic member 22 being fixed on the spray silk part 21 with the similar mode of first embodiment.
A spinneret orifice 23 is all arranged on each ceramic member 22, and this spinneret orifice 23 carries 26 and fluids discharges of mouthful 24, one 25, one three-dimension curved surface sections of fluid introduction segment (conical section) section, 27 compositions by a fluid importing.The cross section of fluid row section 27 is circular, and fluid importing opening 24, and it is circular that the cross section of fluid introduction segment 25 and three-dimension curved surface section 26 also is respectively.Three-dimension curved surface section 26 is connected smoothly with fluid row section 27, does not therefore form the sideline at the inlet 27a place of fluid discharge section.
Even under the situation of the spinnerets of circular cross section long filament, because discharging the inner surface in section 27 holes that link to each other with fluid is three-dimensional level and smooth curved sections 27, therefore particularly there is not broken line, so can obtain the melt flow stream that the utmost point gently flows at the inlet 27a place of fluid discharge section 27.Its result does not just exist to cause the zone that melt flow stream is detained and cause the very big zone of the pressure loss.Although it is very little that the diameter in hole is retracted to, melt liquid also can obtain the utmost point and flow stably and the little pressure loss.
To Fig. 5 modified similar with Fig. 6 equally applicable to this embodiment, can suitably design the shape and the length of three-dimension curved surface section 26 according to various needs.
Though as long as can spray silk, the present invention does not do special qualification to melt flow stream, spinnerets of the present invention is specially adapted to ejection and goes into to make fiber filament, as nylon and polyester filament.Be spinning plate when spraying these materials the pressure loss very low, be the regenerated fiber of representative or be in the process of half artificial fibre of representative with the acetate fiber producing with the rayon, often the spinnerets that used thickness is thin (for example, be about at thickness on 1 millimeter the plate, the simple spinnerets of making by boring), yet, these fibers are said, also can use thicker spinnerets of the present invention.
Though, described several optimum examples of the present invention here in detail.But the present invention is not limited thereto.Only otherwise break away from novelty of the present invention and advantage thereof, to those skilled in the art, can make various modification.Therefore, the embodiment disclosed herein only is used as example, and certainly, scope of the present invention is not restricted among these embodiment, but is limited by following claim.
Claims (6)
1. spinning spinneret with many spinneret orifices, each spinneret orifice comprises a fluid introduction segment and a fluid discharge section of introducing melt flow stream, wherein the internal diameter of fluid discharge section is less than the internal diameter of fluid introduction segment, and discharging section from the melt flow stream that described fluid introduction segment flows out from described fluid discharges, it is characterized in that: described fluid is discharged section and is had a cross section that has many radial components that radially extend from the centre part, the part of the inner surface of described at least each spinneret orifice, on described melt flow stream flow direction, the inlet of discharging section with described fluid links to each other, and formed a three-dimension curved surface, do not form the sideline in the described porch of described fluid discharge section basically.
2. spinning spinneret as claimed in claim 1 is characterized in that the width of each described radial component is discharged changing in the radial direction of section at described fluid.
3. spinning spinneret as claimed in claim 1 it is characterized in that described a plurality of spinneret orifice respectively is made up of single ceramic spare, and these ceramic members is fixed on each combined hole that has on the spray silk spare of described spinnerets.
4. spinning spinneret as claimed in claim 3 is characterized in that in periphery by a kind of heat-resisting inorganic adhesive being circulated into described each ceramic member and the slit between the inner surface of described each combined hole and solidifies described inorganic adhesive with fixing described each ceramic member.
5. spinning spinneret as claimed in claim 1, the above the three-dimension curved surface section of axial direction that it is characterized in that each described spinneret orifice are the porch that extends to described fluid row section through the total length of each spinneret orifice basically.
6. spinning spinneret as claimed in claim 1, it is characterized in that on the axial direction of each described spinneret orifice the cross section of described each spinneret orifice all is configured as the cross section that has with many radial components that radially extend from the centre part on whole length of each described spinneret orifice.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP338869/93 | 1993-12-02 | ||
| JP5338869A JP2668849B2 (en) | 1993-12-02 | 1993-12-02 | Manufacturing method of spinneret |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1116664A CN1116664A (en) | 1996-02-14 |
| CN1044499C true CN1044499C (en) | 1999-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94113080A Expired - Fee Related CN1044499C (en) | 1993-12-02 | 1994-12-02 | Nozzle plate for spinning |
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| Country | Link |
|---|---|
| EP (1) | EP0656433B1 (en) |
| JP (1) | JP2668849B2 (en) |
| KR (1) | KR950018701A (en) |
| CN (1) | CN1044499C (en) |
| DE (1) | DE69413932T2 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2839185B2 (en) * | 1996-09-13 | 1998-12-16 | フィルトレーション株式会社 | Spinneret and spinning method |
| AU6481700A (en) * | 1999-08-19 | 2001-04-17 | Jeong Sik Kim | Spinning nozzle, spinning nipple incorporating the spinning nozzle therein, and method for manufacturing both the same |
| GB9927950D0 (en) | 1999-11-27 | 2000-01-26 | Knight David P | Apparatus and method for forming materials |
| GB0226574D0 (en) * | 2002-11-14 | 2002-12-18 | Spinox Ltd | Apparatus and method for forming materials |
| CN103103627B (en) * | 2012-12-11 | 2015-03-04 | 吴江市元通纺织品有限公司 | Diameter-variable melt spinning device |
| CN103352258A (en) * | 2013-07-08 | 2013-10-16 | 常熟市沪联印染有限公司 | Spinneret device with filter screen |
| CN103981582A (en) * | 2014-06-04 | 2014-08-13 | 徐伯琴 | T-shaped polyester fiber spinneret plate |
| CN104153019A (en) * | 2014-08-26 | 2014-11-19 | 江苏巨鸿超细纤维制造有限公司 | Spinneret plate of composite spinning assembly for dacron and chinlon composite yarn |
| CN104195657B (en) * | 2014-08-26 | 2017-05-03 | 张家港新丝纬化纤有限公司 | Composite spinning assembly of polyester and chinlon composite yarn |
| CN106637449A (en) * | 2016-11-30 | 2017-05-10 | 南京瘦懒猴信息科技有限公司 | Profile hole spinneret plate |
| CN107366027B (en) * | 2017-08-08 | 2019-05-03 | 上海惠浦机电科技有限公司 | The preparation method and spinning head of silicon derivative compound spinning head |
| CN108677255A (en) * | 2018-08-06 | 2018-10-19 | 绍兴华晶科技有限公司 | A kind of structure of composite ceramics spinneret |
| CN108754650A (en) * | 2018-08-06 | 2018-11-06 | 绍兴华晶科技有限公司 | A kind of structure of doughnut ceramic spinneret |
| GB201818689D0 (en) * | 2018-11-16 | 2019-01-02 | Teknoweb Mat S R L | Unitary spinneret block for use in the manufacturing of meltdown fibers comprising spinneret body and nozzles |
| CN110938879A (en) * | 2019-12-25 | 2020-03-31 | 南通醋酸纤维有限公司 | High-density dry spinning spinneret |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2879676A (en) * | 1952-03-01 | 1959-03-31 | Heraeus Gmbh W C | Manufacture of spinning nozzles |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE521689A (en) * | 1952-07-25 | 1900-01-01 | ||
| US3001230A (en) * | 1959-01-29 | 1961-09-26 | Eltherma A G | Spinnerette nozzles |
| US3210451A (en) * | 1960-12-01 | 1965-10-05 | Celanese Corp | Spinnerettes |
| US3303530A (en) * | 1965-01-13 | 1967-02-14 | Du Pont | Spinnerette |
| GB1126609A (en) * | 1966-07-20 | 1968-09-11 | Du Pont | Spinneret |
| CH540996A (en) * | 1971-07-30 | 1973-08-31 | Peter Dr Lieger | Spinneret orifice prodn - by metal deposition |
| US4015924A (en) * | 1973-08-10 | 1977-04-05 | Celanese Corporation | Spinning apparatus providing for essentially constant extensional strain rate |
| US3925525A (en) * | 1973-08-10 | 1975-12-09 | Celanese Corp | Spinning method |
| JPS61124619A (en) * | 1984-11-21 | 1986-06-12 | Asahi Chem Ind Co Ltd | Spinneret for modified cross section filaments |
| JPS62177206A (en) * | 1986-01-30 | 1987-08-04 | Toray Precision Kk | Spinning nozzle made of ceramic |
-
1993
- 1993-12-02 JP JP5338869A patent/JP2668849B2/en not_active Expired - Lifetime
-
1994
- 1994-12-02 CN CN94113080A patent/CN1044499C/en not_active Expired - Fee Related
- 1994-12-02 KR KR1019940032586A patent/KR950018701A/en not_active Application Discontinuation
- 1994-12-02 EP EP94308966A patent/EP0656433B1/en not_active Expired - Lifetime
- 1994-12-02 DE DE69413932T patent/DE69413932T2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2879676A (en) * | 1952-03-01 | 1959-03-31 | Heraeus Gmbh W C | Manufacture of spinning nozzles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1116664A (en) | 1996-02-14 |
| DE69413932T2 (en) | 1999-04-22 |
| JPH07157910A (en) | 1995-06-20 |
| JP2668849B2 (en) | 1997-10-27 |
| KR950018701A (en) | 1995-07-22 |
| EP0656433B1 (en) | 1998-10-14 |
| DE69413932D1 (en) | 1998-11-19 |
| EP0656433A1 (en) | 1995-06-07 |
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