Prickling needle
A needle and needle body technology, which is applied in the field of woven fabric production equipment, can solve the problems of increased fiber sliding resistance, large sliding resistance, and needle wear and failure, so as to reduce the possibility of needle breakage, reduce the possibility of needle breakage, The effect of prolonging the service life
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Embodiment 1
[0024] The pricking needle includes a needle body 1, on which thorn hooks 2 are arranged at intervals, and the thorn hook 2 includes hook grooves 3 and barb thorns 4, and the hook thorns 4 cut into the needle body 1 and contact the hook groove 3, and three protrusions are arranged on the hook groove 3. The curved surfaces 5, three convex curved surfaces 5 are arranged in parallel along the direction of the joint axis of the barb 4 and the hook groove 3, and the borders of adjacent convex curved surfaces are in contact. The chord length corresponding to the convex arc surface in the middle is greater than the chord length corresponding to the convex arc surfaces on both sides, and the ratio of the corresponding chord lengths is 2. Three convex arc surfaces 5 are also arranged on the barb, and the hook teeth 2 are arranged on all edges of the needle body 1 . All the convex arc surfaces 5 are arc-shaped.
Embodiment 2
[0026] It is basically the same as Embodiment 1, except that the chord lengths corresponding to the convex arc surfaces on both sides are greater than the chord lengths corresponding to the convex arc surfaces in the middle, and the ratio of the corresponding chord lengths is 3.
Embodiment 3
[0028] It is basically the same as Embodiment 1, except that the lengths of the chords corresponding to the three convex arc surfaces 5 are the same.
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