Special water needle plate for alumina flexible fiber spunlace
By designing a special water needle plate for hydrospunctured alumina flexible fibers, combined with the design of wetting holes and water spun holes, the existing water needle plates have solved the problem of damage to brittle fibers, and the fibers are effectively wound and moved, ensuring the flatness of the fabric and the applicability of the high water pressure.
Patent Information
- Application Number
- CN202421672687.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-16
AI Technical Summary
Existing water needle plates are prone to fiber damage when processing brittle fibers, and are not suitable for the winding and movement of brittle fibers, resulting in secondary fracture of the fibers and uneven fabrics.
A special water needle plate for hydrospuncture of alumina flexible fiber was designed. The parallel spacer cloth on the plate body was equipped with wetting holes and water spun holes. The wetting holes were pre-wetted and reinforced. Combined with the inverted funnel-like cross-section design, the water flow rate was increased and the winding and movement of brittle fibers were adapted to the winding and movement of brittle fibers.
It effectively avoids the damage of brittle fibers, ensures the strength of the fibers and the flatness of the fabric, and is also suitable for high-pressure environments.
Smart Images
Figure CN222795896U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water needle plates, in particular to a special water needle plate for water spunlace of aluminum oxide flexible fibers. Background Art
[0002] At present, spunlace nonwoven technology is mainly applicable to synthetic fibers, such as polyamide, polyester, aramid, cellulose fibers, etc. The existing water jet plate has the characteristics of concentrated water jet pressure and small overall flow rate. The corresponding processed fibers should have hydrophilicity, high curl and high flexibility.
[0003] Crystal fibers such as alumina fiber and zirconia fiber are characterized by high brittleness, no curling, and large length distribution. Conventional water needle plates only have the function of water entanglement, which will cause damage to brittle fibers. At the same time, conventional water needle plates are mainly used to shrink the water flow particle size and increase the outlet jet velocity. They are not suitable for the winding and movement of such brittle fibers. Excessively high water needle velocity will impact the fibers and cause secondary random breakage of the fibers. While the strength is reduced, a variety of broken fibers are likely to appear in the cloth, affecting the flatness of the cloth surface.
[0004] Therefore, in view of the above problems, the utility model urgently needs to provide a special water needle plate for water spunlace of aluminum oxide flexible fibers. Utility Model Content
[0005] The utility model aims to provide a special water needle plate for hydroentanglement of alumina flexible fibers. The structural design of the special water needle plate for hydroentanglement of alumina flexible fibers solves the problem that the conventional water needle plate in the prior art only has the function of hydroentanglement, which may cause damage to brittle fibers. Meanwhile, the conventional water needle plate is mainly used to shrink the water flow particle diameter and increase the outlet jet velocity, and is not suitable for the winding and movement of such brittle fibers. The excessively high water needle velocity will impact the fibers, causing secondary random breakage of the fibers. The strength is reduced, and a variety of broken fibers are likely to appear in the cloth, affecting the flatness of the cloth surface.
[0006] The utility model provides a special water needle plate for hydroentanglement of aluminum oxide flexible fibers, comprising a plate body, at least one row of wetting holes and at least one row of puncture holes are arranged in parallel and at intervals on the plate body, a first blank section is provided between two adjacent wetting holes, a second blank section is provided between two adjacent puncture holes, the diameter of the water inlet end of the wetting hole is larger than the diameter of the water inlet end of the puncture hole, the diameter of the water outlet end of the wetting hole is larger than the diameter of the water outlet end of the puncture hole; the diameter of the water inlet end of the wetting hole is smaller than the diameter of its water outlet end, and the diameter of the water inlet end of the puncture hole is smaller than the diameter of its water outlet end.
[0007] Furthermore, the cross-sectional area of the water inlet end of the wetting hole is 0.03-0.04 mm 2 The cross-sectional area of the water outlet of the wetting hole is 0.1-0.16mm 2 ; The cross-sectional area of the water inlet end of the puncture hole is 0.01-0.015mm2 The cross-sectional area of the water outlet of the puncture hole is 0.05-0.075mm 2 .
[0008] Furthermore, the width of the first blank section is 1.5-2.0 mm.
[0009] Furthermore, the width of the second blank section is 0.4-0.6 mm.
[0010] Furthermore, the cross section of each wetting hole is in the shape of an inverted funnel.
[0011] Furthermore, the cross section of each puncture hole is in the shape of an inverted funnel.
[0012] Furthermore, the ratio of the diameter of the water inlet end to the diameter of the water outlet end of each wetting hole is 1:(4-5).
[0013] Furthermore, the ratio of the diameter of the water inlet end to the diameter of the water outlet end of each puncture hole is 1:(3.5-4).
[0014] Furthermore, the gap between the inlet ends of the wetting holes and the inlet ends of the puncture holes is 5.8-6.0 mm.
[0015] Furthermore, the plate body is made of stainless steel.
[0016] The utility model provides a special water needle plate for aluminum oxide flexible fiber spunlace, which has the following improvements compared with the prior art:
[0017] 1. The utility model provides a special water needle plate for alumina flexible fiber spunlace, with wetting holes and spunlace holes designed on the plate body. The wetting holes can pre-wet the fiber web, and the spunlace holes can reinforce the fiber web. The design of the wetting holes and spunlace holes concentrated on one plate body can have two functions at the same time. While spunlace, the fiber is wetted to avoid the damage of brittle fiber. The maximum applicable water pressure is ≥2MPa. The water outlet diameter of the spunlace hole is larger than the water inlet diameter, which is suitable for the winding and movement of the brittle fiber. The excessively high water needle speed will impact the fiber, which will not cause secondary random fiber breakage and ensure the flatness of the fabric surface.
[0018] 2. The design of the first blank section of the utility model ensures the wetting effect; the design of the second blank section ensures that the alumina fiber has a certain free end movement space after being impacted by the water flow, avoiding the alumina fiber from being broken and damaged by the water flow impact without a free end, and effectively preventing the alumina fiber from being damaged.
[0019] 3. The cross-section of each wetting hole of the utility model is in the shape of an inverted funnel and the cross-section of each puncture hole is in the shape of an inverted funnel, which can effectively reduce the speed of the water outlet end while increasing the maximum flow rate of a single hole, and realize the movement and entanglement of fibers by increasing the water flow rate per unit time. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 It is a structural schematic diagram (stereoscopic diagram) of the special water needle plate for alumina flexible fiber spunlace described in the utility model;
[0022] Figure 2 for Figure 1 Enlarged view of point C in the middle;
[0023] Figure 3 for Figure 1 AA section view;
[0024] Figure 4 for Figure 1 BB cross-sectional view.
[0025] Description of reference numerals:
[0026] 1. Plate body; 11. Wetting holes; 12. Water puncture holes; 13. First blank section; 14. Second blank section. DETAILED DESCRIPTION
[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] like Figure 1 , Figure 2 , Figure 3 As shown, the present embodiment provides a special water needle plate for hydroentanglement of alumina flexible fibers, comprising a plate body 1, on which at least one row of wetting holes 11 and at least one row of puncture holes 12 are arranged in parallel and at intervals, a first blank section 13 is provided between two adjacent wetting holes 11, a second blank section 14 is provided between two adjacent puncture holes 12, the diameter of the water inlet end of the wetting hole 11 is larger than the diameter of the water inlet end of the puncture hole 12, the diameter of the water outlet end of the wetting hole 11 is larger than the diameter of the water outlet end of the puncture hole 12; the diameter of the water inlet end of the wetting hole 11 is smaller than the diameter of its water outlet end, and the diameter of the water inlet end of the puncture hole 12 is smaller than the diameter of its water outlet end.
[0031] The utility model provides a special water needle plate for alumina flexible fiber spunlace, and a wetting hole and a spunlace hole are designed on the plate body 1. The wetting hole can pre-wet the fiber web, and the spunlace hole can reinforce the fiber web. The design of the wetting hole and the spunlace hole being concentrated on one plate body 1 can have two functions at the same time. While spunlace, the fiber is wetted to avoid the damage of the brittle fiber. The maximum applicable water pressure is ≥2MPa. The water outlet diameter of the spunlace hole 12 is larger than the water inlet diameter, which is suitable for the winding and movement of the brittle fiber. The excessively high water needle speed will impact the fiber, which will not cause the secondary random breakage of the fiber, and ensure the flatness of the cloth surface.
[0032] The wetting hole 11 of the utility model is a square hole, and the cross-sectional area of the water inlet end of the wetting hole 11 is 0.03-0.04mm 2 The cross-sectional area of the water outlet of the wetting hole 11 is 0.1-0.16mm 2 The water puncture hole 12 is a square hole, and the cross-sectional area of the water puncture hole 12 at the water inlet end is 0.01-0.015mm 2 The cross-sectional area of the water outlet end of the puncture hole 12 is 0.05-0.075mm 2 .
[0033] The width of the first blank section 13 of the present invention is 1.5-2.0 mm. Preferably, the width of the first blank section 13 is 1.8 mm to ensure the wetting effect.
[0034] The width of the second blank section 14 of the utility model is 0.4-0.6mm; preferably, the width of the second blank section 14 is 0.5mm; the limitation of the width of the second blank section 14 ensures that the alumina fiber has a certain free end movement space after being impacted by the water flow, avoiding the alumina fiber from being broken and damaged by the water flow impact without a free end, and effectively preventing the alumina fiber from being damaged.
[0035] The cross section of each wetting hole 11 of the utility model is in the shape of an inverted funnel, which can effectively reduce the speed of the water outlet end of the wetting hole 11 and increase the maximum flow rate of a single hole.
[0036] like Figure 3 As shown, the wetting hole 11 includes a first connecting section, a second connecting section and a third connecting section from top to bottom. The cross-section of the first connecting section is square, the cross-section of the second connecting section is triangular, and the cross-section of the third connecting section is square. The height ratio of the first connecting section, the second connecting section and the third connecting section is 10:7:3, which ensures that the water pressure is gradually reduced to effectively prevent the alumina fiber from being damaged.
[0037] The cross-section of each puncture hole 12 of the utility model is inverted funnel-shaped, which can effectively reduce the speed of the water outlet end of the puncture hole 12 while increasing the maximum flow rate of a single hole; the low-pressure and high-flow puncture hole 12 design realizes the movement and entanglement of fibers by increasing the water flow rate per unit time.
[0038] like Figure 4 As shown, the water puncture holes 12 of the utility model include a fourth connecting segment, a fifth connecting segment and a sixth connecting segment from top to bottom. The cross-section of the fourth connecting segment is square, the cross-section of the fifth connecting segment is triangular, and the cross-section of the sixth connecting segment is square. The height ratio of the fourth connecting segment, the fifth connecting segment and the sixth connecting segment is 10:7:3, which ensures that the water pressure is gradually reduced to effectively prevent the alumina fiber from being damaged.
[0039] The ratio of the diameter of the water inlet end to the diameter of the water outlet end of each wetting hole 11 of the utility model is 1:(4-5). Preferably, the ratio of the diameter of the water inlet end to the diameter of the water outlet end of each wetting hole 11 is 1:4.
[0040] The ratio of the diameter of the water inlet end to the diameter of the water outlet end of each water puncture hole 12 of the present invention is 1:(3.5-4). Preferably, the ratio of the diameter of the water inlet end to the diameter of the water outlet end of each water puncture hole 12 is 1:3.5.
[0041] The gap between the inlet end of the wetting hole 11 and the inlet end of the entanglement hole 12 of the utility model is 5.8-6.0 mm, which ensures that wetting and entanglement will not interfere with each other.
[0042] The plate body 1 of the utility model is made of stainless steel to ensure a certain rigidity.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A special water needle plate for alumina flexible fiber spunlace, characterized by: The invention comprises a plate body (1), wherein at least one row of wetting holes (11) and at least one row of puncture holes (12) are arranged in parallel and at intervals on the plate body (1), a first blank section (13) is provided between two adjacent wetting holes (11), a second blank section (14) is provided between two adjacent puncture holes (12), the diameter of the water inlet end of the wetting hole (11) is larger than the diameter of the water inlet end of the puncture hole (12), the diameter of the water outlet end of the wetting hole (11) is larger than the diameter of the water outlet end of the puncture hole (12); the diameter of the water inlet end of the wetting hole (11) is smaller than the diameter of the water outlet end thereof, and the diameter of the water inlet end of the puncture hole (12) is smaller than the diameter of the water outlet end thereof.
2. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The cross-sectional area of the water inlet end of the wetting hole (11) is 0.03-0.04mm 2 The cross-sectional area of the water outlet of the wetting hole (11) is 0.1-0.16 mm 2 The cross-sectional area of the water inlet end of the water puncture hole (12) is 0.01-0.015mm 2 The cross-sectional area of the water outlet end of the puncture hole (12) is 0.05-0.075 mm 2 .
3. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The width of the first blank section (13) is 1.5-2.0 mm.
4. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The width of the second blank section (14) is 0.4-0.6 mm.
5. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The cross section of each wetting hole (11) is in the shape of an inverted funnel.
6. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The cross section of each puncture hole (12) is in the shape of an inverted funnel.
7. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The ratio of the diameter of the water inlet end to the diameter of the water outlet end of each wetting hole (11) is 1:(4-5).
8. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The ratio of the diameter of the water inlet end to the diameter of the water outlet end of each puncture hole (12) is 1:(3.5-4).
9. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The gap between the inlet end of the wetting hole (11) and the inlet end of the water puncture hole (12) is 5.8-6.0 mm.
10. The special water needle plate for alumina flexible fiber spunlace according to claim 1, characterized in that: The plate body (1) is made of stainless steel.