High-speed water jet equipment for producing water jet non-woven fabric

Abstract

This utility model discloses a high-speed hydroentangling equipment for producing spunlace nonwoven fabric, including a rotating drum and hydroentangling heads disposed above the rotating drum. The rotating drum includes a central rotating shaft, with end plates fixed near both ends of the central rotating shaft surface. Multiple circumferentially equidistant supporting straight ribs are fixed between the two end plates. A reflector is also fixed between the two end plates. The reflector is a hollow cylindrical structure with a circumferentially continuous V-shaped bent plate wall, and its outer wall has reflective drawing grooves. This utility model uses a rotating drum with a frame structure composed of a central rotating shaft, end plates, supporting straight ribs, annular supporting ribs, and fixing rods, and a reflector is placed within this frame structure. The high-pressure hydroentangling generated by the hydroentangling heads, after passing through the fiber web, is reflected back to the fiber web in various directions by the reflector, causing the fibers to interweave, entwine, and bind together again, achieving a further reinforcement effect. This not only improves efficiency but also saves water and electricity.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric equipment technology, specifically a high-speed hydroentangling equipment for the production of hydroentangling nonwoven fabric. Background Technology

[0002] Spunlace nonwoven fabric is a nonwoven material made by entanglement and reinforcement of fibers through high-pressure micro-water jets (water needles). Its core process is spunlace reinforcement, which gives spunlace fabric unique properties: soft hand feel, high strength, no chemical adhesives (environmentally friendly), good water absorption, and appearance similar to textiles. It is widely used in wet wipes, medical and sanitary materials, synthetic leather base fabrics, decorative materials and other fields.

[0003] The main processes of hydroentangling include opening, mixing, carding, pre-wetting, high-pressure hydroentangling, dewatering, drying, and winding. During high-pressure hydroentangling, the pre-wetted fiber web is conveyed to the bottom of the hydroentangling head. A high-pressure water pump pressurizes filtered and purified water, which is then distributed through a precision distribution system inside the hydroentangling head to the water needle plate. The high-pressure water forms extremely fine, high-energy, and high-speed water needle bundles through micropores on the water needle plate, impacting the fiber web below. Through puncture and scattering, the fibers interpenetrate, entangle, and bind together, thereby reinforcing the fiber web and giving it a certain strength and tension, thus realizing the transformation from fiber to fabric.

[0004] In the hydroentangling process, the hydroentangling head is usually the most closely watched component. However, for the hydroentangling head to achieve excellent hydroentangling results, the rotating drum supporting and conveying the fiber web is also crucial. Most existing rotating drums are either mesh rollers or circular rollers. Mesh rollers have a relatively poor reflection effect on the high-pressure water jets passing through the fiber web, making it difficult for the reflected water jets to effectively drive the fibers to interweave, entangle, and bind together. Therefore, it is necessary to increase the number of hydroentangling heads and rotating drums on the equipment. Circular rollers, on the other hand, have a smooth surface and uniform structure throughout, resulting in a consistent reflection pattern of the high-pressure water jets passing through the fiber web. This high consistency in driving the fibers to interweave, entangle, and bind together lacks diversity, leading to insufficient strength. This also necessitates increasing the number of hydroentangling heads and rotating drums on the equipment, thus affecting production efficiency and presenting shortcomings. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-speed hydroentangling equipment for the production of hydroentangled nonwoven fabrics, which solves the problem that existing high-speed hydroentangling equipment using wire rollers or circular rollers as rotating drums has a limited effect on reflecting high-pressure water needles, thus affecting production efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A high-speed hydroentanglement equipment for producing hydroentangled nonwoven fabric includes a rotating drum and a hydroentanglement head disposed above the rotating drum. A fiber web is wound and conveyed on the rotating drum. The rotating drum includes a central rotating shaft. End plates are fixed on the surface of the central rotating shaft near both ends. Multiple support straight ribs are fixed between the two end plates and are arranged equidistantly along the circumference. The rotating drum supports the conveyed fiber web through the support straight ribs.

[0008] A reflective cylinder is also fixed between the two end plates. The reflective cylinder is a hollow cylindrical structure, and the cylinder wall is a V-shaped bent plate structure that is continuous in the circumferential direction. The outer wall of the reflective cylinder is provided with a reflective wire drawing groove.

[0009] Preferably, a plurality of annular support ribs are provided at equal intervals between the two end plates, and the straight support ribs are fixed to the outside of the annular support ribs.

[0010] Preferably, the diameter of both the straight and annular support ribs does not exceed 0.5 mm, and the distance between adjacent straight and annular support ribs is not less than 30 mm. The depth of the reflective wire drawing groove does not exceed 0.2 mm, and the reflective wire drawing groove is a mesh groove.

[0011] Preferably, a plurality of fixing rods are also fixed between the two end plates, which are equidistant from each other in the circumferential direction.

[0012] Preferably, the included angle of the V-shaped bending plate structure on the cylinder wall of the reflector is 60°-120°.

[0013] Preferably, each of the rotating drums is provided with at least three sets of water jet heads.

[0014] Preferably, the hydroentangle head includes a high-pressure chamber and a hydroentangle plate seat installed at the bottom of the high-pressure chamber for mounting the hydroentangle plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model features a rotating cylinder with a frame structure consisting of a central rotating shaft, end plates, supporting straight ribs, annular supporting ribs, and fixing rods. A reflective cylinder is installed within the frame structure. The cylinder wall of the reflective cylinder is a continuous V-shaped bent plate structure along the circumference, and the outer wall of the reflective cylinder is provided with reflective drawing grooves. After the high-pressure water jets generated by the hydroentanglement head pass through the fiber web, they can be reflected back to the fiber web in various directions by the reflective cylinder, causing the fibers to interweave, entwine, and bind together again, achieving a further reinforcement effect. This not only improves efficiency but also saves water and electricity, making it highly practical. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2This is a front sectional view of the rotating drum of this utility model;

[0019] Figure 3 This is a side view of the rotating drum of this utility model;

[0020] Figure 4 This is an enlarged view of a partial structure of the reflector surface of this utility model.

[0021] In the diagram: 1. Rotating cylinder; 101. Central rotating shaft; 102. End plate; 103. Supporting straight rib; 104. Reflecting cylinder; 105. Reflecting wire drawing groove; 106. Annular support rib; 107. Fixing rod; 2. Hydrospinning head; 201. High-pressure cavity; 202. Hydrospinning plate seat; 3. Fiber mesh. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-4 As shown, this utility model provides a technical solution: a high-speed hydroentangling equipment for hydroentangling nonwoven fabric production, including a rotating drum 1 and hydroentangling heads 2 arranged above the rotating drum 1. Each rotating drum 1 is provided with at least three sets of hydroentangling heads 2. The hydroentangling head 2 includes a high-pressure chamber 201 and a hydroentangling plate seat 202 installed at the bottom of the high-pressure chamber 201 for installing hydroentangling plates.

[0024] The rotating drum 1 includes a central rotating shaft 101. End plates 102 are fixed on the surface of the central rotating shaft 101 near both ends. Multiple supporting straight ribs 103 are fixed between the two end plates 102 and are arranged at equal intervals along the circumference. Several annular supporting ribs 106 are arranged at equal intervals between the two end plates 102. The supporting straight ribs 103 are fixed to the outside of the annular supporting ribs 106. A fiber web 3 is wound and conveyed on the rotating drum 1. The rotating drum 1 supports and conveys the fiber web 3 through the supporting straight ribs 103.

[0025] The diameter of the straight support rib 103 and the annular support rib 106 does not exceed 0.5 mm, and the distance between adjacent straight support ribs 103 and adjacent annular support ribs 106 is not less than 30 mm. Multiple fixing rods 107 are also fixed between the two end plates 102, which are equidistant along the circumference.

[0026] A reflector 104 is fixed between the two end plates 102. The reflector 104 is a hollow cylindrical structure, and the wall of the reflector 104 is a continuous V-shaped bent plate structure along the circumference. The included angle of the V-shaped bent plate structure on the wall of the reflector 104 is 60°-120°. The outer wall of the reflector 104 is provided with a reflective wire drawing groove 105. The depth of the reflective wire drawing groove 105 does not exceed 0.2 mm, and the reflective wire drawing groove 105 is a mesh groove.

[0027] Working principle:

[0028] The rotating cylinder 1, consisting of a central rotating shaft 101, an end plate 102, a supporting straight rib 103, an annular supporting rib 106, and a fixing rod 107, forms a frame structure. A reflector cylinder 104 is installed inside the frame structure. The cylinder wall of the reflector cylinder 104 is a V-shaped bent plate structure that is continuous in the circumferential direction. The outer wall of the reflector cylinder 104 is provided with a reflective wire drawing groove 105. After the high-pressure water jets generated by the hydroentanglement head pass through the fiber web 3, they can be reflected by the reflector cylinder 104 in various directions back to the fiber web 3, which again drives the fibers to interweave, entwine, and bind together, further reinforcing the structure.

[0029] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed hydroentangling equipment for producing hydroentangled nonwoven fabric, comprising a rotating drum (1) and a hydroentangling head (2) disposed above the rotating drum (1), wherein a fiber web (3) is wound and conveyed on the rotating drum (1), characterized in that: The rotating drum (1) includes a central rotating shaft (101), and end plates (102) are fixed on the surface of the central rotating shaft (101) near both ends. Multiple supporting straight ribs (103) are fixed between the two end plates (102) and are arranged equidistantly along the circumference. The rotating drum (1) supports the conveying fiber web (3) through the supporting straight ribs (103). A reflector (104) is also fixed between the two end plates (102). The reflector (104) is a hollow cylindrical structure, and the cylinder wall of the reflector (104) is a V-shaped bent plate structure that is continuous in the circumferential direction. The outer wall of the reflector (104) is provided with a reflective wire drawing groove (105).

2. The high-speed hydroentangling equipment for producing hydroentangled nonwoven fabric according to claim 1, characterized in that: A plurality of annular support ribs (106) are provided at equal intervals between the two end plates (102), and the straight support ribs (103) are fixed to the outside of the annular support ribs (106).

3. The high-speed hydroentangling equipment for producing hydroentangled nonwoven fabric according to claim 2, characterized in that: The diameter of the straight support rib (103) and the annular support rib (106) is not more than 0.5 mm, and the distance between adjacent straight support ribs (103) and adjacent annular support ribs (106) is not less than 30 mm. The depth of the reflective wire drawing groove (105) is not more than 0.2 mm, and the reflective wire drawing groove (105) is a grid groove.

4. The high-speed hydroentangling equipment for producing hydroentangled nonwoven fabric according to claim 1, characterized in that: Multiple fixing rods (107) are also fixed between the two end plates (102) and are equidistant from each other in the circumferential direction.

5. The high-speed hydroentangling equipment for producing hydroentangled nonwoven fabric according to claim 1, characterized in that: The included angle of the V-shaped bending plate structure on the cylinder wall of the reflector (104) is 60°-120°.

6. The high-speed hydroentangling equipment for producing hydroentangled nonwoven fabric according to claim 1, characterized in that: Each of the aforementioned rotating drums (1) is provided with at least three sets of water jet heads (2).

7. The high-speed hydroentangling equipment for producing hydroentangled nonwoven fabric according to claim 1, characterized in that: The water jet head (2) includes a high-pressure chamber (201) and a water jet plate seat (202) installed at the bottom of the high-pressure chamber (201) for mounting the water jet plate.

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