A non-woven needle

Abstract

The utility model relates to the field of non - woven fabric production technology especially, a kind of non - woven needle. Including needle bar section, needle bar section lower portion is sequentially provided with work section and needle tip section, the cross section of work section is cross type, the opposite two first side convex on work section are all provided with multiple lower hook tooth, the opposite two second side convex on work section are all provided with multiple upper hook tooth. The utility model can make "pin" in fiber in insertion and pull out.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric production technology, and in particular to a nonwoven needle. Background Technology

[0002] Nonwoven needles, mounted on a needle-punching machine, can repeatedly puncture the fiber web. The hooks on the needles move the fibers on the surface and subsurface of the web, causing them to shift vertically. The displaced fibers detach from the needles and remain in the web in an almost vertical position, like many fiber bundles of "pins" driven into the web. This prevents the web from recovering from compression, resulting in a nonwoven fabric with certain strength, density, and elasticity. In existing nonwoven needle technology, the hooks face downwards, which only creates "pins" within the web when the needle punctures it, but not when it is withdrawn. Therefore, it is necessary to needle-punch the other side of the fiber web. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a non-woven needle to address the above-mentioned technical deficiencies.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a non-woven needle, including a needle bar section, a working section and a needle tip section are arranged sequentially at the lower part of the needle bar section, the cross section of the working section is cross-shaped, and multiple lower hook teeth are arranged on two opposite first side protrusions on the working section, and multiple upper hook teeth are arranged on two opposite second side protrusions on the working section.

[0005] To further optimize this technical solution, the positions of all lower and upper hook teeth are staggered along the length of the working section.

[0006] To further optimize this technical solution, the outer sides of the first and second lateral protrusions are angular.

[0007] To further optimize this technical solution, a bending section is provided at the end of the needle bar section away from the working section.

[0008] To further optimize this technical solution, a tapered cone is provided between the needle bar section and the working section.

[0009] Compared with the prior art, the present invention has the following advantages: the cross section of the working section is cross-shaped, and multiple lower hook teeth are provided on the two opposite first side protrusions of the working section, and multiple upper hook teeth are provided on the two opposite second side protrusions of the working section, so that "pins" can be generated in the fiber web when the non-woven needle is inserted into and pulled out of the fiber. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a nonwoven needle.

[0011] Figure 2 for Figure 1 A magnified view of point I in the middle.

[0012] Figure 3 This is a bottom view of a nonwoven needle.

[0013] In the diagram: 1. Bending section; 2. Needle bar section; 3. Tapered cone; 4. Working section; 41. First lateral protrusion; 411. Lower hook tooth; 42. Second lateral protrusion; 421. Upper hook tooth; 5. Needle tip section. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0015] Detailed implementation method: combined with Figure 1-3 As shown, a nonwoven needle includes a needle bar section 2. A working section 4 and a needle tip section 5 are sequentially arranged at the lower part of the needle bar section 2. The working section 4 has a cross-shaped cross-section. Multiple lower hook teeth 411 are provided on each of the two opposing first side protrusions 41 of the working section 4, with the openings of the lower hook teeth 411 facing downwards. Multiple upper hook teeth 421 are provided on each of the two opposing second side protrusions 42 of the working section 4, with the openings of the upper hook teeth 421 facing upwards. During use, the lower hook teeth 411 and upper hook teeth 421 are located at different positions in the width direction of the fiber web, therefore they do not interfere with each other.

[0016] Furthermore, all the lower hook teeth 411 and upper hook teeth 421 are staggered in the length direction of the working section 4, so that the strength of the working section 4 will not decrease too much.

[0017] Furthermore, the outer sides of the first side protrusion 41 and the second side protrusion 42 are pointed, making it easier for fibers to enter the hook teeth.

[0018] Furthermore, the end of the needle rod section 2 away from the working section 4 is provided with a bent part 1, which facilitates connection with the acupuncture machine.

[0019] Furthermore, a tapered cone 3 is provided between the needle bar section 2 and the working section 4.

[0020] In use, the line connecting the two second side protrusions 42 is parallel to the width direction of the fiber web. When the nonwoven needle pierces the fiber web, the lower hook tooth 411 creates a "pin" inside the fiber web (while the fiber in the upper hook tooth 421 comes out from the upper hook tooth 421). When the nonwoven fabric is pulled out of the fiber web, the upper hook tooth 421 creates a "pin" inside the fiber web (while the fiber in the lower hook tooth 411 comes out from the lower hook tooth 411), thus eliminating the need to needle-punch the other side of the fiber web. Since the line connecting the two second side protrusions 42 is parallel to the width direction of the fiber web while the fiber web moves along its length direction, after the fiber comes out from the upper hook tooth 421, the fiber web advances a certain distance, making it difficult for the detached fiber to re-enter the upper hook tooth 421 and be hooked back upwards.

[0021] The specific embodiments described above do not constitute a limitation of this utility model. Any modifications, equivalent substitutions, or improvements made to the above embodiments should be included within the protection scope of this utility model.

Claims

1. A nonwoven needle, comprising a needle bar section (2), wherein a working section (4) and a needle tip section (5) are sequentially arranged at the lower part of the needle bar section (2), characterized in that: The cross section of the working section (4) is cross-shaped. Multiple lower hook teeth (411) are provided on the two opposite first side protrusions (41) of the working section (4), and multiple upper hook teeth (421) are provided on the two opposite second side protrusions (42) of the working section (4).

2. The nonwoven needle according to claim 1, characterized in that: All the lower hook teeth (411) and upper hook teeth (421) are staggered in the length direction of the working section (4).

3. A nonwoven needle according to claim 1, characterized in that: The outer sides of the first lateral protrusion (41) and the second lateral protrusion (42) are pointed.

4. A nonwoven needle according to claim 1, characterized in that: The needle bar section (2) is provided with a bending part (1) at the end away from the working section (4).

5. A nonwoven needle according to any one of claims 1-4, characterized in that: A tapered cone (3) is provided between the needle bar section (2) and the working section (4).

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