CN204849272U

CN204849272U - Nonwoven needle

Info

Publication number: CN204849272U
Application number: CN201520530906.4U
Authority: CN
Inventors: 王靖
Original assignee: Taizhou Youngdragon Make Needle Co Ltd
Current assignee: Taizhou Youngdragon Make Needle Co Ltd
Priority date: 2015-07-21
Filing date: 2015-07-21
Publication date: 2015-12-09
Anticipated expiration: 2025-07-21

Abstract

The utility model discloses a nonwoven needle aims at providing an efficient nonwoven needle, and its technical scheme main points are: including main needle bar, middle needle bar, hook thorn needle body and needle point, be provided with the hook thorn on the edge of hook thorn needle body, the alveolar surface of every hook thorn sets up to the convex arc face with the lower chamfer of hook thorn, and the edge of hook thorn needle body is the heliciform setting. The utility model discloses because hook thorn needle body edge is the heliciform, its hook thorn is for knitting layer surface, and every hook thorn all has the same effect, and to collude fibrous probability promptly the same, so collude fibrous probability and just improve greatly, and spiral helicine hook thorn needle body is equivalent to the screw -thread steel, be superior to on penetration power and tear strength cylindric, the phenomenon of reducible broken needle, the life of extension needle improves production efficiency.

Description

Nonwovens Needle

Technical field

The utility model relates to a kind of Nonwovens Needle, and more particularly, it relates to a kind of Nonwovens Needle efficiently.

Background technology

Nonwovens Needle is the special needle of producing nonwoven fabric, and it punctures at a high speed on fiber web layer up and down with intensive pin, fiber is entwined mutually, forms various nonwoven fabric.

At present, application number be 200420110729.6 Chinese patent disclose a kind of Nonwovens Needle, it comprises main shank, middle shank, Rhizoma Sparganii hook pricker.Although alveolar surface and the incision edged surface of each hook thorn in this nonwoven pinhock pricker are smooth arc-shaped surface, avoiding flute profile cross section is that triangular facet brings and easily cuts off fiber, the problem that service life is short, but the multiple hook thorns on above-mentioned Nonwovens Needle seamed edge are arranged in a linear, only having on three seamed edge directions relative to tissue layer surface has hook to sting, when first hook thorn near needle point hooks after fiber in piercing process, thereafter the probability that second hook thorn hooks fiber will reduce, cause the speed of weaving cotton cloth slow, affect production efficiency, and penetrability is poor, tearing strength is low, easily cause broken needle and reduce production efficiency.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is the Nonwovens Needle providing a kind of production efficiency high, has the feature of high penetrating power and tearing strength.

For achieving the above object, the utility model provides following technical scheme: a kind of Nonwovens Needle, comprise main shank, middle shank, hook pricker and needle point, the seamed edge of hook pricker is provided with hook thorn, the alveolar surface of each hook thorn and the incision edged surface of hook thorn are set to convex globoidal, and the seamed edge of hook pricker is arranged in the shape of a spiral.

Preferably, the cross section of described hook pricker is equilateral triangle.

Preferably, described hook pricker is provided with the conical surface, the summit of the described conical surface towards with needle point towards identical.

Preferably, described staggered being arranged on three seamed edges of each hook thorn.

Preferably, the undercut angles of described hook thorn is 20 ° ~ 30 °.

Compared with prior art, the beneficial effects of the utility model are: due to spiral helicine structure, and its hook thorn is relative to tissue layer surface, and each hook thorn has identical effect, and namely to hook the probability of fiber identical, so the probability hooking fiber just improves greatly; And spiral helicine hook pricker is equivalent to screw-thread steel, penetration power and tearing strength is better than cylindric, can reduce the phenomenon of broken needle, in the service life of extension pin, enhances productivity.

Accompanying drawing explanation

Fig. 1 is the front view of the utility model Nonwovens Needle embodiment;

Fig. 2 is the partial enlarged drawing at C place in Fig. 1;

Fig. 3 is the A-A profile in Fig. 2;

Fig. 4 is the partial right side view at D place in Fig. 2;

Fig. 5 is the B-B profile in Fig. 4;

Fig. 6 is the cross section oblique view at E place in Fig. 1.

Reference numeral: 1, main shank; 2, middle shank; 3, hook pricker; 4, hook thorn; 41, hook ratchet; 42, alveolar surface; 43, incision edged surface; 44, the undercut angles of hook thorn.

Detailed description of the invention

For making the object of the utility model embodiment, technical scheme and advantage clearly, doing below with reference to the embodiment of Fig. 1 to Fig. 6 to the utility model Nonwovens Needle and describing clearly and completely further.Obviously, described embodiment is section Example of the present utility model, instead of whole embodiments.Based on described embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under without the need to the prerequisite of creative work, all belongs to the scope of the utility model protection.

A kind of Nonwovens Needle, comprise main shank 1, middle shank 2, hook pricker 3 and needle point 5, the seamed edge of hook pricker 3 is provided with hook thorn 4, the alveolar surface 42 of each hook thorn and the incision edged surface 43 of hook thorn are set to convex globoidal, the seamed edge of hook pricker 3 is arranged in the shape of a spiral, due to spiral helicine setting, its hook thorn 4 is seen relative to tissue layer surface, each hook thorn 4 has identical effect, and namely to hook the probability of fiber identical, so the probability hooking fiber just improves greatly, and spiral helicine hook pricker 3 is equivalent to screw-thread steel, penetration power and tearing strength are better than cylindric, the phenomenon of broken needle can be reduced, the service life of extension pin, enhance productivity.

The cross section of described hook pricker 3 is equilateral triangle, and equilateral triangle has very high stability and mechanical strength, not easy fracture, and adopts the hook pricker 3 of triangular prism shape to have better penetration power.

Described hook pricker 3 is provided with the conical surface, the summit of the described conical surface towards with needle point 5 towards in the same way, arranging of the conical surface reduces the resistance that needle body penetrates tissue layer, is conducive to needle body and penetrates tissue layer, raise the efficiency.The tapering of the general conical surface is 0.02 ~ 0.06, and in the present embodiment, the tapering of the conical surface is 0.03.

Described hook stings 4 and interlaced is arranged on three seamed edges, and while being arranged in of this form ensures hook thorn band gross weight, the hook thorn 4 avoided on hook pricker 3 is in the intensity same cross section affecting needle body.

The undercut angles 44 of described hook thorn is 20 ° ~ 30 °, and when the undercut angles of hook thorn is too small, hook thorn is difficult to bring fiber, affects production efficiency; When the undercut angles of hook thorn is excessive, hook thorn easily destroys tissue layer fiber, affects fabric quality.

The above is only exemplary embodiment of the present utility model, but not for limiting protection domain of the present utility model, protection domain of the present utility model is determined by appended claim.

Claims

1. a Nonwovens Needle, comprises main shank, middle shank, hook pricker and needle point, the seamed edge of hook pricker is provided with hook thorn, and the alveolar surface of each hook thorn and the incision edged surface of hook thorn are convex globoidal, it is characterized in that: the seamed edge of hook pricker is helicoidal structure.

2. Nonwovens Needle according to claim 1, is characterized in that: the cross section of described hook pricker is equilateral triangle.

3. Nonwovens Needle according to claim 1, is characterized in that: described hook pricker is provided with the conical surface, the summit of the described conical surface towards with needle point towards identical.

4. Nonwovens Needle according to claim 2, is characterized in that: described staggered being arranged on three seamed edges of each hook thorn.

5. Nonwovens Needle according to claim 1, is characterized in that: the undercut angles of described hook thorn is 20 ° ~ 30 °.