Spunlace cloth grain and spunlace device

Abstract

The utility model relates to the technical field of spunlace cloth production, and discloses a spunlace cloth line and spunlace device, which comprises a plurality of spunlace heads, at least the last spunlace head is a left-right swing type spunlace head, in the advancing process of a fiber web, the left-right swing type spunlace head forms a plurality of wavy-line-shaped spunlace lines on the fiber web, and the spunlace lines are arranged on the fiber web. The bending degree of the squirt lines is 1, under the condition that the advancing speed of the fiber web is not reduced, the quantity of fibers distributed in the MD direction and the CD direction on the fiber web is balanced by changing the directions of the squirt lines, so that the strength distribution in the MD direction and the CD direction is balanced, the production cost is reduced, the product competitiveness is improved, and the fiber web has the advantages of being simple in structure, high in practicability and good in using effect.

Description

Technical Field

[0001] This utility model relates to the field of spunlace fabric production technology, and more specifically, to a spunlace fabric texture and a spunlace device. Background Technology

[0002] Spunlace fabric, also known as hydroentangled nonwoven fabric, is a fabric made by spraying high-pressure micro-jet water onto one or more layers of fiber web, causing the fibers to entangle together. With technological advancements and widespread application, washable spunlace nonwoven fabric is increasingly favored by the market.

[0003] Currently, in spunlace fabric production, the water needle pattern is linear. At normal production speeds, the strength in the MD direction is higher than that in the CD direction, making it impossible to achieve a balance between the MD and CD strength values. The only way to achieve this balance is to reduce the production speed, allowing the fiber web to absorb the water needle energy more evenly, and then, through the reflection of this energy, to achieve a more even distribution of fibers in both the MD and CD directions. Spunlace fabric with balanced MD and CD strength has a better feel, but the lower production speed results in higher production costs and market prices. The MD direction is longitudinal, representing the direction of fiber web movement during production, while the CD direction is transverse and perpendicular to the MD direction.

[0004] In view of this, the applicant has studied and improved the existing problems, and proposed a spunlace fabric texture and spunlace device, which can achieve balanced strength values ​​in the MD and CD directions of the produced spunlace fabric by changing the fiber distribution in the MD and CD directions without reducing the production speed, thereby reducing production costs and improving product competitiveness. Utility Model Content

[0005] This invention provides a spunlace fabric texture and a spunlace device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A spunlace fabric texture includes several wavy water needle patterns, the curvature of which is 1.

[0008] In uniform production, the distance between adjacent troughs is equal to the distance between adjacent crests. The ratio of the distance between adjacent troughs or the distance between adjacent crests to the vertical distance between crests is called the curvature of the water needle pattern.

[0009] A spunlace fabric hydroentangling device includes multiple hydroentangling heads, at least the last of which is a left-right swaying hydroentangling head. During the advance of the fiber web, the left-right swaying hydroentangling head forms the aforementioned water needle pattern on the fiber web.

[0010] The needle aperture of the needle plate of the left-right swinging hydroentangle head is preferably a large aperture structure of 0.1mm-0.5mm. The larger the needle aperture, the stronger the controllability of the amount of fibers in the hydroentangled fabric in the MD and CD directions.

[0011] The left-right swaying water jet head includes a water jet head body and a translation drive device. The water jet head body is connected to the translation drive device through a connector. The translation drive device drives the water jet head body to reciprocate along the CD direction.

[0012] The translation drive device includes a translation track, on which a moving part and a drive mechanism are arranged, and the drive mechanism drives the moving part to reciprocate along the translation track.

[0013] The drive mechanism can be a telescopic hydraulic cylinder, a telescopic air cylinder, an electric telescopic rod, or a threaded screw, etc.

[0014] In the process of hydroentangling reinforcement of spunlace fabric, this invention ensures that the speed of the fiber web does not decrease. By setting a left-right swaying hydroentangling head at least at the last stage, the swaying frequency and amplitude are controlled to form a wavy water needle pattern on the fiber web. The ratio of the distance between adjacent troughs to the vertical distance between a trough and a crest of the water needle pattern is 1. The real-time direction of the water needle pattern is the real-time direction of most fibers in the fiber web. The direction of the fibers affects the distribution of tension. By changing the direction of the water needle pattern, the amount of fibers distributed in the MD and CD directions on the fiber web is balanced, thereby achieving a balanced distribution of strength in the MD and CD directions.

[0015] This invention features a simple structure, strong practicality, and good performance. It achieves balanced strength values ​​in the MD and CD directions of the produced spunlace fabric by changing the fiber distribution in the MD and CD directions without reducing production speed, thereby improving production efficiency, reducing production costs, and enhancing product competitiveness. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the production structure according to an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the left-right oscillating hydroentangle head according to an embodiment of this application;

[0018] Figure 3 for Figure 2 A schematic diagram of the side view structure;

[0019] Figure 4 for Figure 1 A top-view structural diagram;

[0020] Figure 5 This is a schematic diagram showing the curvature of the spunlace fabric texture. Detailed Implementation

[0021] 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.

[0022] See Figure 1-5 A spunlace fabric hydroentangling device includes multiple hydroentangling heads, at least the last of which is a left-right swaying hydroentangling head 3, see [reference]. Figure 1 and 4 In this embodiment, the last spunlace head is an example of a left-right swaying spunlace head 3. After the fiber web 1 is reinforced by the existing fixed spunlace head in the previous stage, a straight water needle pattern 2 is formed on the fiber web 1. During the forward movement of the fiber web, after passing the left-right swaying spunlace head 3, the left-right swaying spunlace head 3 forms a spunlace fabric pattern on the fiber web.

[0023] The spunlace fabric texture includes several wavy water-jet patterns 4, with a curvature of 1. See also Figure 5 In uniform production, the distance between adjacent troughs 7 and troughs 7 is equal to the distance between adjacent crests 6 and crests 6. The ratio of the distance between adjacent troughs 7 and troughs 7 or the distance between adjacent crests 6 and crests 6 to the vertical distance between crests 6 and troughs 7 is called the curvature of the water needle texture curve.

[0024] The real-time direction of the water needle pattern 4 is the same as the real-time direction of most fibers in the fiber web 1. The fiber direction affects the distribution of tensile force. By changing the direction of the water needle pattern, the amount of fibers distributed in the MD and CD directions in the fiber web 1 is balanced, thereby balancing the strength distribution in the MD and CD directions. When the degree of curvature is greater than 1, the MD strength is greater than the CD strength; when the degree of curvature is less than 1, the MD strength is less than the CD strength.

[0025] Specifically, the left-right swaying slingshot head 3 includes a slingshot head body 3-1 and a translation drive device 3-2. The slingshot head body 3-1 is connected to the translation drive device 3-2 via a connector 3-3. The translation drive device 3-2 drives the slingshot head body 3-1 to reciprocate along the CD direction. In this embodiment, the translation drive device 3-2 includes a translation track 3-2-1. A moving part 3-2-2 and a drive mechanism 3-2-3 are arranged on the translation track 3-2-1. The drive mechanism 3-2-3 drives the moving part 3-2-2 to reciprocate along the translation track 3-2-1. The drive mechanism 3-2-3 can be a telescopic hydraulic cylinder, a telescopic air cylinder, an electric telescopic rod, or a threaded screw, etc. In this embodiment, the drive mechanism 3-2-3 uses a motor-driven threaded screw as an example. The motor is located at one end of the translation track 3-2-1. The threaded screw passes through the translation track 3-2-1 and is rotatably connected to both ends of the translation track 3-2-1 via bearings. It is also threadedly connected to the moving part 3-2-2 within the translation track 3-2-1. Rollers 3-2-4 are connected to both sides of the moving part 3-2-2 via rotating shafts. The rollers 3-2-4 are located on the translation track 3-2-1. Within 1, the moving part 3-2-2 is connected to the hydroentangle head body 3-1 via the connector 3-3. The output shaft of the motor is connected to the threaded screw. The forward and reverse rotation of the motor drives the threaded screw to rotate forward and reverse, thereby driving the moving part 3-2-2 to reciprocate within the translation track 3-2-1. This, in turn, drives the hydroentangle head body 3-1 to reciprocate in the CD direction, achieving left and right swaying. By controlling its swaying frequency and amplitude, a water needle texture curve 4 with a curvature of 1 is formed on the fiber web 1, making the fiber amount distributed in the MD and CD directions on the fiber web balanced, thus making the strength distribution in the MD and CD directions balanced.

[0026] Furthermore, the water needle plate of the left-right swaying hydroentangle head 3 is a large-diameter water needle plate, with a preferred water needle aperture of 0.1mm-0.5mm. The larger the water needle aperture, the stronger the controllability of the fiber amount in the hydroentangled fabric in the MD and CD directions. A vacuum suction device 5 is provided below the fiber web 1 corresponding to the left-right swaying hydroentangle head 3, and the water for hydroentanglement of the corresponding left-right swaying hydroentangle head 3 is sucked away by the vacuum suction device 5.

[0027] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A spunlace pattern, characterized by: The water needle pattern comprises several wavy lines, the bending degree of the water needle pattern is 1, in uniform production, the distance between adjacent valleys is equal to the distance between adjacent peaks, the ratio of the distance between adjacent valleys or the distance between adjacent peaks to the vertical distance between the peak and the valley is called the bending degree of the water needle pattern.

2. A spunlace fabric spunlace device comprising a plurality of spunlace heads, characterized in that: At least the last water jet head is a left-right swing water jet head, and the left-right swing water jet head forms the water jet pattern as claimed in claim 1 on the web during the advancement of the web.

3. The spunlace fabric spunlace apparatus according to claim 2, wherein: The water needle aperture of the water needle plate of the left-right swing water jet head is 0.1mm-0.5mm.

4. The spunlace fabric of claim 2, wherein: The left-right swing water jet head comprises a water jet head body and a translation driving device, the water jet head body is connected with the translation driving device through a connecting piece, and the translation driving device drives the water jet head body to perform a reciprocating translation movement along the CD.

5. The spunlace fabric spunlace apparatus according to claim 4, wherein: The translation driving device comprises a translation track, a moving piece and a driving mechanism arranged on the translation track, and the driving mechanism drives the moving piece to perform a reciprocating movement along the translation track.

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