Non-woven needle

Abstract

The utility model relates to the technical field of non-woven fabric production, in particular to a non-woven needle. Comprising a needle rod section, a working section is arranged at the lower end of the needle rod section, a needle tip is arranged at the lower end of the working section, the working section comprises a center rod, and at least one spiral body spirally distributed around the surface of the center rod is arranged on the outer surface of the center rod. And a plurality of positive hook teeth for hooking fibers in the process of needling the non-woven fabric into the fiber web are arranged on the edge of the outer side of the lower part of the spiral body. The probability that the positive hook teeth hook fibers is high.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabric production, in particular to a non-woven needle. Background Art

[0002] A needle loom is an important device for producing nonwoven fabrics by needle punching, and a nonwoven needle is a key component used for needle punching a fiber web to make it a nonwoven fabric. Patent application number 201210308541.1 discloses a nonwoven needle, which includes a needle bar section, a working section and a needle tip section extending from the needle bar section in a first direction in sequence, the working section includes a first partial section, a second partial section and a first tapered cone connecting the first partial section and the second partial section, a plurality of first hook teeth are looped on the surface of the first partial section, a plurality of second hook teeth are looped on the surface of the second partial section, the diameter of the first partial section is greater than the diameter of the second partial section, the hook tooth depth of the first hook tooth is greater than the hook tooth depth of the second hook tooth, the probability of the hook teeth on the surface of the nonwoven needle hooking the fabric fiber is significantly increased, and the initial resistance of the puncture is reduced, thereby improving the production efficiency. The present application provides a different way to increase the probability of the hook teeth hooking the fabric fiber. Utility Model Content

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

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a non-woven needle, including a needle rod section, a working section is arranged at the lower end of the needle rod section, a needle tip is arranged at the lower end of the working section, the working section includes a center rod, the outer surface of the center rod is provided with at least one spiral body distributed spirally around its surface, and a plurality of positive hook teeth are arranged on the outer edge of the lower part of the spiral body for hooking the fibers in the process of the non-woven needle penetrating into the fiber web.

[0005] To further optimize the technical solution, the number of the spiral bodies is two and they are symmetrically distributed about the axis of the central rod.

[0006] To further optimize the technical solution, the outer edges of the upper portion of the spiral body are provided with reverse hook teeth for hooking the fibers during the process of the non-woven needle pulling out the fiber web.

[0007] To further optimize the technical solution, a tapered cone is provided between the needle rod section and the working section.

[0008] To further optimize the technical solution, a bending portion is provided at the upper end of the needle rod segment.

[0009] Compared with the prior art, the utility model has the following advantages: 1. The working section includes a central rod, a spiral body is arranged on the outside of the central rod, and a plurality of positive hook teeth are arranged on the outer edge of the lower part of the spiral body. Due to the existence of the spiral body, a spiral groove is formed on the outside of the central rod, so the probability of the positive hook teeth hooking the fiber is relatively high; 2. Reverse hook teeth are arranged on the outer edge of the upper part of the spiral body, so that the non-woven needle can also play a needling role in the process of pulling out the fiber web, thereby improving the efficiency of needling. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of a non-woven needle.

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

[0012] In the figure: 1, bending part; 2, needle rod section; 3, tapered cone; 4, needle tip; 5, working section; 51, center rod; 52, spiral body; 53, reverse hook tooth; 54, normal hook tooth. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0014] Specific implementation method: Combination Figure 1-2 As shown, a non-woven needle comprises a needle bar section 2, a working section 5 is arranged at the lower end of the needle bar section 2, a needle tip 4 is arranged at the lower end of the working section 5, the working section 5 comprises a center rod 51, the outer surface of the center rod 51 is provided with at least one spiral body 52 distributed around the surface in a spiral shape, the spiral body 52 is wound around the center rod 51 for multiple turns, and the outer edges of the lower part of the spiral body 52 are provided with a plurality of positive hook teeth 54 for hooking the fibers when the non-woven needle penetrates into the fiber web. Due to the existence of the spiral body 52, a spiral groove is formed outside the center rod 51, and the fibers are easily entered into the groove when the non-woven needle penetrates into the fiber web, thereby being easily hooked by the positive hook teeth 54. Since there is a groove under each positive hook tooth 54, the probability of the positive hook teeth 54 on the non-woven needle of the present application hooking the fibers is relatively high.

[0015] Furthermore, there are two spiral bodies 52 and they are symmetrically distributed about the axis of the central rod 51, so that the force on the non-woven needle is more uniform.

[0016] Furthermore, the outer edges of the upper part of the spiral body 52 are provided with reverse hook teeth 53 for hooking the fibers when the non-woven needle pulls out the fiber web. The reverse hook teeth 53 are preferably arranged at the lower part of the working section 5. When the non-woven needle is completely pulled out of the fiber web, the fibers hooked by the reverse hook teeth 53 are closer to the surface of the fiber web. When the non-woven needle pierces the fiber web again, the fibers will fall off from the reverse hook teeth 53 and the probability of being hooked up again by the reverse hook teeth 53 is small. If they are not hooked up, when the non-woven needle is pulled out of the fiber web again, the fibers successfully pass through the position where the non-woven needle is located. Even if they are hooked up, as long as they are not hooked up once after several insertions and withdrawals, the fibers can successfully pass through the position where the non-woven needle is located. The reverse hook teeth 53 enable the non-woven needle to play a role in acupuncture in the process of pulling out the fiber web, thereby improving the efficiency of acupuncture.

[0017] Furthermore, a tapered cone 3 is provided between the needle rod section 2 and the working section 5 .

[0018] Furthermore, a bending portion 1 is provided at the upper end of the needle rod segment 2 to facilitate connection with a needling machine.

[0019] It should be understood that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A nonwoven needle, comprising a needle bar section (2), a working section (5) being arranged at the lower end of the needle bar section (2), and a needle tip (4) being arranged at the lower end of the working section (5), characterized in that: The working section (5) comprises a central rod (51), the outer surface of which is provided with at least one spiral body (52) distributed in a spiral shape around the surface, and the outer edges of the lower part of the spiral body (52) are provided with a plurality of positive hook teeth (54) for hooking the fibers when the non-woven needle penetrates into the fiber web.

2. A nonwoven needle according to claim 1, characterized in that: The number of the spiral bodies (52) is two and they are symmetrically distributed about the axis of the central rod (51).

3. A nonwoven needle according to claim 1, characterized in that: The outer edge of the upper part of the spiral body (52) is provided with reverse hook teeth (53) for hooking the fibers when the non-woven needle pulls out the fiber web.

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

5. A nonwoven needle according to any one of claims 1 to 3, characterized in that: The upper end of the needle rod segment (2) is provided with a bending portion (1).

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