Composite spinneret plate assembly for producing fibers with S-shaped sections
By designing composite spinneret assemblies and using specific structures to make the cross-section of the material S-shaped or figure-five-shaped, the problems of poor fiber bundle cohesion and yarn lateral expansion were solved, achieving efficient production and performance improvement of S-shaped cross-section fibers.
Patent Information
- Application Number
- CN202423313332.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the current production of S-shaped cross-section fibers, the fiber bundle cohesion and yarn lateral expansion are not ideal, and new spinneret assemblies need to be designed to enhance these two aspects of performance.
The material is arranged in an S-shape or 5-shape cross-section by using a first distribution plate, a second distribution plate, a third distribution plate and a spinneret stacked from top to bottom. The composite spinneret assembly enhances the fiber bundle cohesion and yarn lateral expansion.
It achieves efficient production of S-shaped cross-section fibers, enhances fiber bundle cohesion and yarn lateral expansion, has a reasonable and ingenious structure, and improves fiber production efficiency.
Smart Images
Figure CN223607453U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fiber production equipment technical field more specifically, it relates to a kind of composite spinneret assembly for S-shaped section fiber production. BACKGROUND
[0002] Special-shaped section fiber has more excellent luster, resilience, fluffy air permeability and warmth than ordinary fiber, and based on this, special-shaped section fiber is more and more welcomed by people.Currently, special-shaped section fiber on the market is mostly triangular, star-shaped, multi-lobed, hollow, S-shaped, etc.For S-shaped section fiber, currently, spinneret with S-shaped outlet hole section is mostly used to realize spinning production, but the fiber tow cohesion and yarn lateral expandability obtained by this method are still not ideal, so a new type of spinneret assembly for S-shaped section fiber production needs to be designed to further enhance the fiber tow cohesion and yarn lateral expandability. SUMMARY
[0003] The utility model aims at overcoming the deficiency of prior art, and provides a kind of composite spinneret assembly for S-shaped section fiber production.
[0004] To achieve the above object, the utility model adopts the following technical scheme:
[0005] A kind of composite spinneret assembly for S-shaped section fiber production, including first distribution plate, second distribution plate, third distribution plate and spinneret from top to bottom, the first distribution plate includes first vice distribution groove and first main distribution groove, and the first vice distribution groove and first main distribution groove are circumferentially distributed, the second distribution plate includes multiple second vice distribution grooves, multiple second main distribution grooves A and annular second main distribution groove B formed by the recess of second distribution plate lower surface, multiple the second main distribution groove A and multiple second vice distribution groove inner and outer circle interval distribution, every second main distribution groove A is communicated with second main distribution groove B, the bottom of second main distribution groove B is protruded to form multiple distribution columns, every distribution column includes multiple pairs of cuboid column distribution columns distributed in circumference, every pair of distribution column is distributed in inner and outer circle interval and not on the same radial line, the bottom of second vice distribution groove is recessed to form cuboid column vice distribution hole passing through every distribution column;
[0006] The third distribution plate includes multiple third distribution grooves distributed in circumference, every third distribution groove cross section is rectangular, and second main distribution groove B is communicated with every third distribution groove, every pair of vice distribution hole is communicated with corresponding one third distribution groove, and the projection of every pair of vice distribution hole in horizontal plane is located in one third distribution groove range, so that the material cross section after flowing into third distribution groove from second main distribution groove B is S-shaped or 5-shaped;
[0007] The spinneret comprises a plurality of circumferentially distributed spinneret holes, the third distribution groove is in one-to-one correspondence with the spinneret holes in up-down communication, and the spinneret hole discharge port is in a rectangular cross section.
[0008] The utility model further sets up, first vice distribution groove includes long strip shape first vice flow guide groove by first distribution board upper surface recess forms and a plurality of radial distribution's first flow guide hole by first vice flow guide groove bottom recess forms, a plurality of first flow guide hole with a plurality of first main distribution groove up-down correspondence communication.
[0009] The utility model further sets up, first main distribution groove includes long strip shape first main flow guide groove by first distribution board upper surface recess forms and a plurality of radial distribution's first main flow guide hole by first main flow guide groove bottom recess forms, a plurality of first main flow guide hole with a plurality of second main distribution groove A up-down correspondence communication.
[0010] The utility model further sets up, in a pair of distribution column and a third distribution groove corresponding up-down opposite structure, a pair of distribution hole is in the circumferential direction two hole inner walls corresponding with the third distribution groove in the circumferential direction two groove side walls up-down one-to-one, and two hole inner walls and two groove side walls are in the same vertical plane.
[0011] The utility model further sets up, each pair of distribution column lower end all abuts to third distribution board.
[0012] The utility model further sets up, the spinneret hole includes up-down in succession communication's feed hole, connecting hole, transition hole and discharge port, the feed hole, transition hole all are in four prism table shape, the connecting hole, discharge port all are in rectangular column shape.
[0013] Summarized above, the utility model has following beneficial effect:
[0014] Through the improvement design of each distribution board and spinneret structure, obtain composite spinneret assembly, and the composite spinneret assembly structure design is reasonable, and is ingenious, can realize the efficient production of S cross section fiber, helps to enhance the fiber tow cohesion and yarn horizontal expansibility. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structure diagram of the spinneret assembly of this embodiment;
[0016] Figure 2 It is the top view of the first distribution board of the spinneret assembly of this embodiment;
[0017] Figure 3 It is the top view of the second distribution board of the spinneret assembly of this embodiment;
[0018] Figure 4 It is the bottom view of the second distribution board of the spinneret assembly of this embodiment;
[0019] Figure 5 A top view of a third distribution plate of the spinneret assembly of the present embodiment;
[0020] Figure 6 A bottom view of a spinneret of the spinneret assembly of the present embodiment;
[0021] Figure 7 A top view of a pair of distribution columns of the spinneret assembly of the present embodiment in correspondence with the third distribution groove in up-and-down communication.
[0022] Reference signs: first distribution plate 1, first sub-distribution groove 11, first sub-flow guide groove 111, first flow guide hole 112, first main distribution groove 12, first main flow guide groove 121, first main flow guide hole 122, second distribution plate 2, second sub-distribution groove 21, second main distribution groove A 22, second main flow guide groove 221, second main flow guide hole 222, second main distribution groove B 23, distribution column 24, distribution hole 25, a hole wall 251, b hole wall 252, third distribution plate 3, third distribution groove 31, a groove side wall 311, b groove side wall 312, spinneret 4, spinneret hole 41, feed hole 411, connecting hole 412, transition hole 413, discharge hole 414. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0024] As shown in the drawings, Figures 1-7 A composite spinneret assembly for S-shaped cross-section fiber production comprises a first distribution plate 1, a second distribution plate 2, a third distribution plate 3 and a spinneret 4 stacked from top to bottom.
[0025] As shown in the drawings, Figures 1-2As shown, the first distribution plate 1 includes a first sub-distribution groove 11 and a first main distribution groove 12, which are both circumferentially distributed, and the first sub-distribution groove 11 and the first main distribution groove 12 are circumferentially distributed at intervals. The second distribution plate 2 includes a plurality of circles of second sub-distribution grooves 21, a plurality of circles of second main distribution grooves A22, and a circular ring-shaped second main distribution groove B23 formed by a recess on the lower surface of the second distribution plate 2, and the second main distribution groove A22 is provided with one more circle than the first main distribution groove 12. The first sub-distribution groove 11 includes a long strip-shaped or waist round-shaped first sub-flow guide groove 111 formed by a recess on the upper surface of the first distribution plate 1 and a plurality of radially distributed first flow guide holes 112 formed by a recess on the bottom surface of the first sub-flow guide groove 111, and a plurality of circles of the first flow guide holes 112 are in communication with a plurality of circles of the first main distribution groove 12 above and below, that is, one circle of the first flow guide holes 112 is in communication with one circle of the first main distribution groove 12.
[0026] The second main distribution groove A22 includes a circular ring-shaped second main flow guide groove 221 formed by a recess on the upper surface of the second distribution plate 2 and a circumferentially distributed second main flow guide hole 222 formed by a recess on the bottom surface of the second main flow guide groove 221, and the second main flow guide hole 222 is in communication with the second main distribution groove B23 above and below.
[0027] As shown in Figure 1 , Figure 3 A plurality of circles of the second main distribution groove A22 are distributed at intervals between the inner and outer circles of a plurality of circles of the second sub-distribution groove 21, each circle of the second main distribution groove A22 is in communication with the second main distribution groove B23 above and below, the bottom surface of the second main distribution groove B23 is raised to form a plurality of distribution columns 24, each circle of the distribution column 24 includes a plurality of pairs of cuboid column-shaped distribution columns 24 distributed circumferentially, each pair of the distribution column 24 is distributed at intervals between the inner and outer circles and not on the same radial line, and the bottom surface of the second sub-distribution groove 21 is recessed to form a cuboid column-shaped sub-distribution hole 25 penetrating each distribution column 24, as shown in Figure 4 .
[0028] As shown in Figure 1 , Figure 5As shown, the third distribution plate 3 comprises a plurality of third distribution grooves 31 distributed in a circle, each of the third distribution grooves 31 is rectangular in cross section, and each third distribution groove 31 is in communication with the second main distribution groove B23 above and below, each pair of the auxiliary distribution holes 25 is in communication with a corresponding third distribution groove 31 above and below, and the projection of each pair of auxiliary distribution holes 25 on the horizontal plane is located within the range of a third distribution groove 31, so that the material flowing into the third distribution groove 31 from the second main distribution groove B23 is S-shaped or 5-shaped in cross section. Further, the lower end of each pair of distribution columns 24 abuts the third distribution plate 3; in the corresponding structure of a pair of distribution columns 24 and a third distribution groove 31, the inner walls of the two holes of a pair of distribution holes 25 are in one-to-one correspondence with the upper and lower two groove side walls of the third distribution groove 31 in the circumferential direction, and the two hole inner walls and the two groove side walls are on the same vertical plane. Further, as shown Figure 7 As shown, the third distribution groove 31 comprises two a groove side walls 311 opposite in the circumferential direction and two b groove side walls 312 opposite in the radial direction, the distribution hole 25 comprises two a hole walls 251 opposite in the circumferential direction and two b hole walls 252 opposite in the radial direction, the a hole wall 251 of the distribution hole 25 close to the a groove side wall 311 is opposite to the a groove side wall 311 of the third distribution groove 31 in the vertical direction, and the a hole wall 251 and the a groove side wall 311 are on the same vertical plane; a pair of distribution holes 25 are spaced apart from the two b groove side walls 312 of the third distribution groove 31. Through the cooperation design of a pair of distribution columns 24 and a third distribution groove 31, the material flowing into the third distribution groove 31 from the second main distribution groove B23 can be S-shaped (also known as 5-shaped) in cross section, and the main component cannot completely wrap the auxiliary component, and the auxiliary component is actually filled in the bending part of the S shape, and the auxiliary component is partially exposed to the main component.
[0029] As shown Figure 1 , Figure 6 As shown, the spinneret 4 comprises a plurality of spinneret holes 41 distributed in a circle, the third distribution groove 31 is in one-to-one correspondence with the spinneret hole 41 above and below, and the discharge port of the spinneret hole 41 is rectangular in cross section. Further, the spinneret hole 41 comprises a feeding hole 411, a connecting hole 412, a transition hole 413 and a discharge hole 414 connected in sequence from top to bottom, the feeding hole 411 and the transition hole 413 are both in the shape of a quadrangular frustum, and the connecting hole 412 and the discharge hole 414 are both in the shape of a rectangular column. The upper and lower end faces of the feeding hole 411 are rectangular, and the upper and lower end faces of the transition hole 413 are rectangular.
[0030] When the novel spinneret assembly of the example is used for spinning, the secondary component such as COPET, the secondary component selects the alkali-soluble material melt to enter the third distribution groove 31 through the first secondary distribution groove 11, the second secondary distribution groove 21 and the distribution hole 25, the main component such as PET melt enters the third distribution groove 31 through the first main distribution groove 12, the second main distribution groove A 22 and the second main distribution groove B 23, the secondary component and the main component are compounded into a long rectangular cross-section (also called a linear shape) in the third distribution groove 31, and then are sprayed out through the spinneret 4, the obtained fiber is alkali-dissolved, the secondary component is dissolved and removed, and the main component is left, so that the final fiber cross-section is S-shaped.
[0031] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solutions falling within the idea of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principles of the present application shall be considered as the protection scope of the present application.
Claims
1. A composite spinneret assembly for S-shaped cross-section fiber production, comprising a first distribution plate (1), a second distribution plate (2), a third distribution plate (3) and a spinneret (4) stacked from top to bottom, characterized in that, The first distribution plate (1) comprises first sub-distribution grooves (11) and first main distribution grooves (12) which are circumferentially distributed, and the first sub-distribution grooves (11) and the first main distribution grooves (12) are circumferentially distributed with mutual spacing. The second distribution plate (2) comprises multiple circles of second sub-distribution grooves (21), multiple circles of second main distribution grooves A (22), and a circular annular second main distribution groove B (23) formed by the depression of the lower surface of the second distribution plate (2). The multiple circles of the second main distribution grooves A (22) are distributed with mutual spacing between the inner and outer circles of the multiple circles of the second sub-distribution grooves (21). Each circle of the second main distribution grooves A (22) is in communication with the second main distribution groove B (23) above and below. The bottom surface of the second main distribution groove B (23) is raised to form multiple circles of distribution columns (24). Each circle of the distribution columns (24) comprises multiple pairs of cuboid columnar distribution columns (24) which are circumferentially distributed. Each pair of the distribution columns (24) is distributed with mutual spacing between the inner and outer circles and is not distributed on the same radial line. The bottom surface of the second sub-distribution groove (21) is depressed to form a cuboid columnar sub-distribution hole (25) which penetrates each distribution column (24). The third distribution plate (3) comprises multiple circles of circumferentially distributed third distribution grooves (31). Each of the third distribution grooves (31) has a rectangular cross section. The second main distribution groove B (23) is in communication with each of the third distribution grooves (31) above and below. Each pair of the sub-distribution holes (25) is in communication with a corresponding one of the third distribution grooves (31) above and below. The projection of each pair of the sub-distribution holes (25) on a horizontal plane is located within the range of one of the third distribution grooves (31), so that the cross section of the material flowing into the third distribution grooves (31) from the second main distribution groove B (23) is S-shaped or 5-shaped. The spinneret (4) comprises multiple circles of circumferentially distributed spinneret holes (41). The third distribution grooves (31) are in one-to-one correspondence with the spinneret holes (41) and are in communication above and below. The cross section of the outlet of the spinneret hole (41) is rectangular.
2. The composite spinneret assembly for producing an S-shaped cross-section fiber according to claim 1, wherein The first sub-distribution groove (11) comprises a long strip-shaped first sub-flow guide groove (111) formed by the depression of the upper surface of the first distribution plate (1) and multiple radially distributed first flow guide holes (112) formed by the depression of the bottom surface of the first sub-flow guide groove (111). Multiple circles of the first flow guide holes (112) are in corresponding communication above and below with multiple circles of the first main distribution grooves (12).
3. The composite spinneret assembly for producing an S-shaped cross-section fiber according to claim 1, wherein The first main distribution groove (12) comprises a long strip-shaped first main flow guide groove (121) formed by the depression of the upper surface of the first distribution plate (1) and multiple radially distributed first main flow guide holes (122) formed by the depression of the bottom surface of the first main flow guide groove (121). Multiple circles of the first main flow guide holes (122) are in corresponding communication above and below with multiple circles of the second main distribution grooves A (22).
4. The composite spinneret assembly for producing an S-shaped cross-section fiber according to claim 1, wherein In a corresponding structure of a pair of distribution columns (24) and one third distribution groove (31) above and below, the inner walls of the two holes of a pair of the distribution holes (25) in the circumferential direction correspond to the upper and lower sides of the two groove side walls of the third distribution groove (31) in the circumferential direction, and the two hole inner walls and the two groove side walls are located on the same vertical plane.
5. The composite spinneret assembly for producing an S-shaped cross-section fiber according to claim 1, wherein The lower ends of each pair of the distribution columns (24) abut to the third distribution plate (3).
6. The composite spinneret assembly for producing an S-shaped cross-section fiber according to claim 1, wherein The spinneret (41) comprises feeding holes (411), connecting holes (412), transition holes (413) and discharging holes (414) which are communicated in sequence from top to bottom, the feeding holes (411) and the transition holes (413) are all in quadrangular frustum shape, and the connecting holes (412) and the discharging holes (414) are all in cuboid column shape.