CN117904729A - Spinning cap and production process thereof - Google Patents
Spinning cap and production process thereof Download PDFInfo
- Publication number
- CN117904729A CN117904729A CN202410134054.0A CN202410134054A CN117904729A CN 117904729 A CN117904729 A CN 117904729A CN 202410134054 A CN202410134054 A CN 202410134054A CN 117904729 A CN117904729 A CN 117904729A
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- Prior art keywords
- cap
- guide
- spinning
- guide surfaces
- carrying
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Links
- 238000009987 spinning Methods 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 238000004080 punching Methods 0.000 claims description 13
- 238000005553 drilling Methods 0.000 claims description 12
- 210000001161 mammalian embryo Anatomy 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 8
- 238000010892 electric spark Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 17
- 238000005507 spraying Methods 0.000 abstract 5
- 239000007921 spray Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000007756 Akebia quinata Nutrition 0.000 description 1
- 240000008027 Akebia quinata Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000578 dry spinning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000001891 gel spinning Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention discloses a spinning cap and a production process thereof, wherein the spinning cap is provided with a groove, a plurality of spraying holes are arranged in the groove to receive fluid, then three first guiding surfaces and three second guiding surfaces are arranged in the spraying holes, the three first guiding surfaces and the three second guiding surfaces are used for guiding fluid to move, the fluid is gradually narrowed after entering the spraying holes, and finally, the filiform fluid is sprayed through the spraying holes, so that the fluid smoothly passes through the spraying holes and smoothly sprays the filiform fluid in parallel flow, and the stability of the spinning process is high.
Description
Technical Field
The invention relates to the technical field of spinning caps, in particular to a spinning cap and a production process thereof.
Background
Spinning caps, which are used for extruding fine parts with micropores or slits of fiber forming stock solution on a dry-wet spinning machine, are various in international types, and are developed into more than 1000 special-shaped fiber types each year by noble metal companies and Taineka companies in Japanese fields; the DuPont company in the United states can manufacture five-leaf spinneret orifices in a triangular shape and a four-leaf shape by using a swelling adhesion method; the technology of producing spinning caps by the germany Enka company is in the leading position internationally; while domestic spinning caps are produced, the spinning stability and the processing precision of the spinning caps are quite different from those of foreign countries. The publication number is CN103993367B, which discloses a spinning cap for high-speed dry spinning, comprising an annular fixed gasket, a multi-layer filter cloth, a flow director and a special-shaped spinneret plate from top to bottom, wherein the lower end of an inlet device of spinning solution, the fixed gasket, the multi-layer filter cloth, the flow director and the special-shaped spinneret plate are surrounded on the inner side of the spinning cap by a spinning cap shell and are fixed. The multi-layer filter cloth can be composed of a layer of flannel and three continuous layers of high-density nylon fabrics; the special-shaped spinneret plate is provided with a horizontal folded edge, a vertical folded edge and a spinneret plate body, and the spinneret plate body is provided with a plurality of spinneret orifices; the number of the spinneret holes is 200-2000, and the density of the spinneret holes near the center is greater than that of the spinneret holes around the center; the inner side of the deflector is in an inverted truncated cone side surface shape, and the outer side of the deflector is in a cylindrical surface shape with annular flash; the vertex angle of the round table is 20-30 degrees. The local density and the number of the spinning holes are increased, and the spinning speed and the productivity are greatly improved; the pressure distribution of the spinning liquid in the spinning cap is uniform and stable, and the stability of the spinning process and the spinning quality are improved. The spinning quality of the spinning cap is not stable enough, and the processing precision is low.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a spinning cap with stable spinning and high precision and a production process thereof.
In order to achieve the above purpose, the present invention provides the following solutions: the utility model provides a spinning cap, includes the cap main part, cap main part top lateral wall takes shape has the flange, the cap main part is opened flutedly, it has a plurality of spouting holes to open to the recess bottom, the spouting hole includes three first guide face, three second guide face, three first guide face slope sets up downwards, three the side of first guide face connects gradually, three the bottom of first guide face is close to each other and forms the spinning hole, every two adjacent connect between the top of first guide face the second guide face, the second guide face is isosceles triangle structure.
The beneficial effects of the invention are as follows: the stability of spinning is improved, this spinning cap is through setting up the recess, and set up a plurality of spouting holes in the recess, in order to accept the fluid, then the three first guide face that the spout hole set up, three second guide face, and the spinning hole of formation, utilize the guide fluid removal of three first guide face, three second guide face, make fluid get into after the spout hole narrow gradually, spout filiform fluid through the spinning hole at last, so make fluid pass through the spout hole smoothly, and the smooth filiform fluid of spouting of parallel flow makes spinning process stability high.
Further, the first guide surface comprises a first guide part and a second guide part, the second guide part and the first guide part are arranged up and down, the bottoms of the three first guide parts are close to each other and form a spinneret orifice, and the second guide surface is connected between every two adjacent second guide parts.
Further, the first guide surface is of an isosceles triangle structure, and the second guide surface is of a rectangular structure. By adopting the structure, the invention realizes guiding the fluid flow.
Further, the cross section of the spinneret orifice is in a triangular structure.
Further, the cross-sectional area of the spinneret orifice gradually decreases from top to bottom. By adopting the structure, the invention realizes the ejection of the filiform fluid.
The invention also comprises a production process of the spinning cap, which comprises the following steps:
S1, pouring molten steel into an ingot mould, condensing to form a steel ingot, and rolling the steel ingot into a sheet to form a steel sheet;
s2, stamping the steel sheet in the step S1 to form a cap blank, and clamping, fixing and positioning the cap blank;
S3, sequentially carrying out head punching, laser punching and micro electric spark punching on the cap blanks positioned in the step S2, and carrying out primary size finishing on the cap blanks after punching;
s4, carrying out laser drilling on the cap embryo finished in the step S3, carrying out secondary size finishing on the cap embryo, and carrying out abrasive particle flow polishing on the cap embryo.
Further, in the step S1, after the steel ingot is formed, forging processing is performed on the steel ingot.
Further, in the step S1, after the steel ingot is rolled, the steel sheet is subjected to pickling processing.
Further, in the step S3 and the step S4, polishing is required to be performed on the cap blank before laser drilling and micro electric spark drilling.
Further, after the cap blank is formed by punching in the step S2, after the laser drilling in the step S3, and after the second sizing in the step S4, the size inspection of the cap blank is required.
The invention adopts the process to produce the spinning cap, and can process high-precision ejection holes, wherein the processed holes have high precision through a plurality of punching holes, size inspection after punching, polishing and the like.
Drawings
Fig. 1 is a perspective view of the whole structure of the present invention.
Fig. 2 is a perspective view of the whole structure of the present invention.
Fig. 3 is a top view of the ejection orifice of the present invention.
Fig. 4 is a cross-sectional view A-A of fig. 3 in accordance with the present invention.
FIG. 5 is a graph of the composition measurement of three spots of the spinning nozzle of the present invention.
FIG. 6 is a second component detection plot of three points of the spin cap of the present invention.
Fig. 7 is a graph showing the variation of the hardness of the ejection orifice according to the present invention.
Fig. 8 is a graph showing the variation of the hardness of the ejection orifice according to the present invention.
Wherein 1 is a cap body, 11 is a flange, 12 is a groove, 2 is a discharge hole, 21 is a first guide surface, 211 is a first guide portion, 212 is a second guide portion, 22 is a second guide surface, and 23 is a discharge hole.
Detailed Description
The following description of the embodiments of the present invention will be made more complete and less obvious to those skilled in the art, based on the embodiments of the present invention, for a part, but not all of the embodiments of the present invention, without making any inventive effort.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 4, a spinning nozzle comprises a nozzle body 1, wherein a flange 11 is formed on the outer side wall of the top of the nozzle body 1, a groove 12 is formed on the nozzle body 1, a plurality of ejection holes 2 are formed on the bottom of the groove 12, the ejection holes 2 comprise three first guide surfaces 21 and three second guide surfaces 22, the three first guide surfaces 21 are obliquely downward arranged, the side edges of the three first guide surfaces 21 are sequentially connected, the bottoms of the three first guide surfaces 21 are mutually close to each other and form a spinning nozzle 23, a second guide surface 22 is connected between the tops of every two adjacent first guide surfaces 21, and the second guide surfaces 22 are of isosceles triangle structures.
In the present embodiment, the first guide surface 21 includes a first guide portion 211 and a second guide portion 212, the second guide portion 212 is disposed above and below the first guide portion 211, the bottoms of the three first guide portions 211 are close to each other and form the spinneret orifice 23, and the second guide surface 22 is connected between every two adjacent second guide portions 212.
In the present embodiment, the first guide surface 21 has an isosceles triangle structure, and the second guide surface 22 has a rectangular structure.
In this embodiment, the cross section of the spinneret orifice 23 has a triangular structure.
In this embodiment, the cross-sectional area of the spinneret orifice 23 gradually decreases from top to bottom.
In the present embodiment, the inclination angle of the first guide surface 21 is 30 °, the inclination angle of the second guide surface 22 is 20 °, and the surface inclination angle of the spinneret orifice 23 is 10 °.
The production process of the spinning nozzle comprises the following steps:
S1, pouring molten steel into an ingot mould, standing for a certain time, condensing to form a steel ingot, taking out the steel ingot, forging the steel strip, rolling the steel ingot to form a steel sheet, and carrying out pickling on the steel sheet after the steel sheet is formed.
S2, stamping the steel sheet in the step S1 to form a cap blank, checking the size of the cap blank for the first time, and then placing the cap blank into a corresponding die, and clamping, fixing and positioning.
S3, punching the positioned cap blank in the step S2 in a first way, polishing the cap blank for the first time after punching in the first way, then carrying out laser drilling, carrying out second inspection on the size of the cap blank after laser drilling, carrying out fine electric spark drilling after carrying out second polishing, and finally placing the cap blank into a shaping die to carry out first size finishing on the cap blank.
S4, polishing the cap embryo subjected to finishing in the step S3 for the third time, then carrying out laser drilling, carrying out secondary size finishing on the cap embryo, carrying out third inspection on the cap embryo after the secondary size finishing, and finally carrying out abrasive particle flow polishing on the cap embryo to obtain the spinning cap of the embodiment.
When spinning is performed using the spinning cap of the present embodiment, the fluid enters the grooves 12, then flows into the plurality of ejection holes 2, and when the fluid is ejected into the ejection holes 2, the fluid is guided by the three first guide surfaces 21 and the three second guide surfaces 22, flows into the ejection holes 23, and is ejected through the ejection holes 23.
In this embodiment, the spin hat material element composition of this embodiment includes: c element, si element, cr element, fe element, ni element, ta element.
The Ta element is adopted, and has the advantages of high melting point, low hardness, excellent conductivity, good biocompatibility, low thermal expansion coefficient, small influence of hot processing on precision, ductility and excellent cold processing performance, and can be drawn into a thin filament foil with excellent high temperature resistance, corrosion resistance and chemical stability.
Specifically, the spinning hat material comprises the following elements: 2.88% of C element, 0.81% of Si element, 18.84% of Cr element, 65.60% of Fe element, 11.86% of Ni element and 1.00% of Ta element.
From the above table, it is known that the hardness of the obtained spinning cap is increased from the upper surface layer to the lower surface layer in a gradient manner, the hardness value of the lower surface layer within the range of 600 μm is kept constant, the hardness of the upper surface layer is 220HV, and the hardness of the lower surface layer is 310HV.
The above-described embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention in any way. Any person skilled in the art can make many more possible variations and modifications of the technical solution of the present invention or modify equivalent embodiments without departing from the scope of the technical solution of the present invention by using the technical content disclosed above. Therefore, all equivalent changes according to the inventive concept are covered by the protection scope of the invention without departing from the technical scheme of the invention.
Claims (10)
1. A spinning nozzle comprising a nozzle body (1), characterized in that: the novel cap is characterized in that a flange (11) is formed on the outer side wall of the top of the cap body (1), a groove (12) is formed in the cap body (1), a plurality of ejection holes (2) are formed in the bottom of the groove (12), each ejection hole (2) comprises three first guide surfaces (21) and three second guide surfaces (22), the three first guide surfaces (21) are obliquely downwards arranged, the side edges of the first guide surfaces (21) are sequentially connected, the bottoms of the three first guide surfaces (21) are mutually close to each other and form an ejection hole (23), every two adjacent top portions of the first guide surfaces (21) are connected with each other through the second guide surfaces (22), and the second guide surfaces (22) are of an isosceles triangle structure.
2. A spin-on cap according to claim 1, wherein: the first guide surface (21) comprises a first guide part (211) and a second guide part (212), the second guide part (212) and the first guide part (211) are arranged up and down, the bottoms of the three first guide parts (211) are close to each other and form a spinneret orifice (23), and the second guide surface (22) is connected between every two adjacent second guide parts (212).
3. A spin-on cap according to claim 2, wherein: the first guide surface (21) is of an isosceles triangle structure, and the second guide surface (22) is of a rectangular structure.
4. A spin-on cap according to claim 3, wherein: the cross section of the spinneret orifice (23) is in a triangular structure.
5. A spin-on cap according to claim 4, wherein: the cross-sectional area of the spinneret orifice (23) gradually decreases from top to bottom.
6. A process for producing a spin-on cap according to claim 5, wherein: the method comprises the following steps:
S1, pouring molten steel into an ingot mould, condensing to form a steel ingot, and rolling the steel ingot into a sheet to form a steel sheet;
s2, stamping the steel sheet in the step S1 to form a cap blank, and clamping, fixing and positioning the cap blank;
S3, sequentially carrying out head punching, laser punching and micro electric spark punching on the cap blanks positioned in the step S2, and carrying out primary size finishing on the cap blanks after punching;
s4, carrying out laser drilling on the cap embryo finished in the step S3, carrying out secondary size finishing on the cap embryo, and carrying out abrasive particle flow polishing on the cap embryo.
7. The process for producing a spinning nozzle according to claim 6, wherein: in the step S1, after forming the steel ingot, forging the steel ingot.
8. The process for producing a spinning nozzle according to claim 6, wherein: in the step S1, after the steel ingot is rolled, the steel sheet is subjected to pickling processing.
9. The process for producing a spinning nozzle according to claim 6, wherein: in the step S3 and the step S4, the cap blank needs to be polished before laser drilling and micro electric spark drilling.
10. The process for producing a spinning nozzle according to claim 6, wherein: after the cap blank is formed by stamping in the step S2, after laser drilling in the step S3 and after the second size finishing in the step S4, the size of the cap blank is required to be checked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410134054.0A CN117904729A (en) | 2024-01-31 | 2024-01-31 | Spinning cap and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410134054.0A CN117904729A (en) | 2024-01-31 | 2024-01-31 | Spinning cap and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117904729A true CN117904729A (en) | 2024-04-19 |
Family
ID=90697408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410134054.0A Pending CN117904729A (en) | 2024-01-31 | 2024-01-31 | Spinning cap and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117904729A (en) |
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2024
- 2024-01-31 CN CN202410134054.0A patent/CN117904729A/en active Pending
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