CN204849273U

CN204849273U - Protruding type arc tooth nonwoven needle with spiral crochet hook body

Info

Publication number: CN204849273U
Application number: CN201520532857.8U
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 a protruding type arc tooth nonwoven needle with spiral crochet hook body, and its technical scheme main points are: including backshank pole, needle king -rod and the crochet hook body, be equipped with protruding roof beam on the crochet hook body, protruding roof beam is equipped with a plurality of briar tooths, is equipped with curved tooth's socket and curved chamfer down on every briar tooth, protruding roof beam on the crochet hook body is the heliciform.

Description

A kind of convex curved tooth Nonwovens Needle with spirality crochet hook body

Technical field

The utility model relates to Nonwovens Needle, and more particularly, it relates to a kind of convex curved tooth Nonwovens Needle with spirality crochet hook body.

Background technology

Along with the new varieties of nonwoven fabric constantly occur, conventional common triangle Nonwovens Needle cannot adapt to the special process requirement of new varieties.The fibre bundle become by ultra-fine high strength multiply fibrous polymer is through a weft yarn, is punctured up and down by fibrage laying through Nonwovens Needle, and the nonwoven fabric tangled is used as high-tensile conveyer belt.Because thinner than the chemical fiber of levels laying through the single-stranded fiber of weft yarn, so general conventional triangle has the Nonwovens Needle of briar tooth can serious damage cut off a large amount of through weft yarn in piercing process, has a strong impact on the tensile strength of conveyer belt.

For above-mentioned technical problem, application number is a kind of convex curved tooth of Chinese patent Nonwovens Needle of 200620124743.0, by needle point, working beam, intermediate bar, main shank composition, several briar tooths are provided with in working beam, each briar tooth has teeth groove and incision edged surface, working beam is provided with convex beam, briar tooth is provided with in convex beam, the teeth groove of briar tooth and incision edged surface are arc, said structure is easy to base cloth is strutted and arrange briar tooth on same convex beam although can play, avoid damaging fiber in piercing process, but because this needle point still adopts traditional linear pattern needle point, thus the needle point structure intensity of this Nonwovens Needle is not high, frangibility, ABRASION RESISTANCE reduces and band gross weight is even not.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of convex curved tooth Nonwovens Needle with spirality crochet hook body.

For achieving the above object, the utility model provides following technical scheme: a kind of convex curved tooth Nonwovens Needle with spirality crochet hook body, comprise backshank bar, pin king-rod and crochet hook body, described crochet hook body is provided with convex beam, described convex beam is provided with some briar tooths, each briar tooth is provided with the teeth groove of arc and the incision edged surface of arc, and the convex beam on described crochet hook body in the shape of a spiral.

Preferably, the lateral cross section of described crochet hook body is triangle.

Preferably, the quantity of described convex beam be 3 and uniform winding on the external sidewall of crochet hook.

Preferably, the briar tooth quantity on each convex beam is 3-8, and the briar tooth wherein away from pin king-rod is open flat tooth, and the entrance angle of its excess-three briar tooth is 45 °.

Compared with prior art, the beneficial effects of the utility model are: convex beam arranges some briar tooths, and this convex beam is easy to a base cloth and struts, and this briar tooth is beneficial to puncture effect, teeth groove and and incision edged surface be arcuate structure, can effectively avoid damage fiber, be beneficial to smooth effect; Convex beam is arranged in the shape of a spiral, this convex beam is not easy the situation occurring fracture in actual use, the structural strength of whole convex beam is further strengthened, relative to traditionally shaped convex beam, anti-wear performance gets a promotion further, when puncturing, spiral helicine convex beam is wound on the external sidewall of crochet hook, when puncturing, the band gross weight brought that punctures is 360 degree of all standings, plays the effect of homogeneous band hair.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of convex curved tooth Nonwovens Needle embodiment with spirality crochet hook body of the utility model;

Fig. 2 is a kind of sectional drawing with crochet hook body in the convex curved tooth Nonwovens Needle embodiment of spirality crochet hook body of the utility model;

Fig. 3 is a kind of partial sectional view with crochet hook body in the convex curved tooth Nonwovens Needle embodiment of spirality crochet hook body of the utility model;

Fig. 4 is the partial enlarged drawing of A in Fig. 3;

Fig. 5 is the partial enlarged drawing of B in Fig. 3.

Reference numeral: 1, backshank bar; 2, pin king-rod; 3, crochet hook body; 4, convex beam; 5, briar tooth; 51, open flat tooth; 6, teeth groove; 7, incision edged surface.

Detailed description of the invention

For making the object of the utility model embodiment, technical scheme and advantage clearly, below with reference to Fig. 1 to Fig. 5 a kind of convex curved tooth Nonwovens Needle embodiment with spirality crochet hook body of the utility model being done 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 convex curved tooth Nonwovens Needle with spirality crochet hook body, comprise backshank bar 1, pin king-rod 2 and crochet hook body 3, described crochet hook body 3 is provided with convex beam 4, described convex beam 4 is provided with some briar tooths 5, each briar tooth 5 is provided with the teeth groove 6 of arc and the incision edged surface 7 of arc, convex beam 4 on described crochet hook body 3 in the shape of a spiral, convex beam 4 arranges some briar tooths 5, this convex beam 4 is easy to a base cloth and struts, this briar tooth 5 is beneficial to puncture effect, teeth groove 6 and and incision edged surface 7 be arcuate structure, can effectively avoid damage fiber, be beneficial to smooth effect; Convex beam 4 is arranged in the shape of a spiral, this convex beam 4 is not easy the situation occurring fracture in actual use, the structural strength of whole convex beam 4 is further strengthened, relative to traditionally shaped convex beam 4, anti-wear performance gets a promotion further, when puncturing, spiral helicine convex beam 4 is wound on crochet hook body 3 lateral wall, when puncturing, the band gross weight brought that punctures is 360 degree of all standings, plays the effect of homogeneous band hair.

The lateral cross section of crochet hook body 3 is triangle, as shown in Figure 2, this lateral cross section carries out cross section for this crochet hook body 3 along its radial direction, and this kind of shape can promote the structural strength of whole needle body, promotes the torsional strength of needle body, general windup-degree is no more than 180 °, in the middle of actual, windup-degree is preferably 45 °, and this kind of angle is reversed, while the puncture effect ensureing Nonwovens Needle, take into account structural strength and homogeneous band gross weight, and the efficiency of producing this Nonwovens Needle can be promoted.

The quantity of convex beam 4 be 3 and uniform winding on crochet hook body 3 lateral wall, the shape that crochet hook body 3 is formed jointly with convex beam 4 be triangular prism, the structural strength of the whole needle body of further lifting.

Briar tooth 5 quantity on each convex beam 4 is 3-8, briar tooth 5 wherein away from pin king-rod 2 is open flat tooth 51, because first the briar tooth 5 away from pin king-rod 2 conflicts with knitted fabric in actual piercing process, adopt open flat tooth 51 structure, steady and smooth more when making puncture, reduces the noise produced, the entrance angle of its excess-three briar tooth 5 is 45 °, the entrance angle of this angle effectively can reduce the clamping stagnation power of piercing process, and when extracting, band gross weight is even.

Above-mentioned all needle structures can adopt material based on high-quality special steel HZ041, and its heat treatment is through advanced technologies such as vacuum recrystallization annealing process, spheroidising, high-frequency quenching, the tempering of well formula, surface carburization, Ultrasonic Cleanings.Metallographic structure is that the hidden acicular martensite of tempering and fine particle are uniformly distributed carbide, and between HRC61-63, hardness is high, and toughness is good.

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. the convex curved tooth Nonwovens Needle with spirality crochet hook body, comprise backshank bar, pin king-rod and crochet hook body, described crochet hook body is provided with convex beam, described convex beam is provided with some briar tooths, each briar tooth is provided with the teeth groove of arc and the incision edged surface of arc, it is characterized in that: the convex beam on described crochet hook body in the shape of a spiral.

2. a kind of convex curved tooth Nonwovens Needle with spirality crochet hook body according to claim 1, is characterized in that: the lateral cross section of described crochet hook body is triangle.

3. a kind of convex curved tooth Nonwovens Needle with spirality crochet hook body according to claim 1, is characterized in that: the quantity of described convex beam be 3 and uniform winding on the external sidewall of crochet hook.

4. a kind of convex curved tooth Nonwovens Needle with spirality crochet hook body according to claim 1, is characterized in that: the briar tooth quantity on each convex beam is 3-8, and the briar tooth wherein away from pin king-rod is open flat tooth, and the entrance angle of its excess-three briar tooth is 45 °.