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Apparatus for needling a fibrous web

A fiber web and equipment technology, which is applied in the field of fiber web needle punching equipment, can solve the problems of complex mechanical devices, insufficient needle beam guidance, and insufficient stability of the needle beam, etc., to achieve increased adjustment range and high passing speed , the effect of stabilizing guidance

Inactive Publication Date: 2011-02-23
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the separate horizontal drive of this known device enables a large range of movement in the horizontal direction, it has the disadvantage of a complex mechanism, which leads to insufficient stability of the needle beam and especially at high passing speeds. Insufficient guidance of the needle beam

Method used

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  • Apparatus for needling a fibrous web
  • Apparatus for needling a fibrous web
  • Apparatus for needling a fibrous web

Examples

Experimental program
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Embodiment Construction

[0022] exist figure 1 A first embodiment of the apparatus according to the invention for needling a fiber web is schematically shown in . According to the device of the present invention figure 1 The exemplary embodiment shows a beam support 2 which holds a needle beam 1 on its underside. The needle bar 1 has a needle board 3 comprising a large number of needles 4 on its underside. A base plate 26 and a needle lifter 25 are assigned to the needle plate 3 including the needles 4 , a fiber web 27 being guided between the base plate 26 and the needle lifter 25 at a substantially constant feed speed. The direction of movement of the fiber web 27 is here indicated by an arrow.

[0023] A crank linkage 5 acts on the beam support 2 . The crank linkage 5 is formed by two crank drives 6.1 and 6.2 arranged parallel to one another. The crank gears 6.1 and 6.2 have two parallel crankshafts 9.1 and 9.2 which are arranged above the beam support 2. The crankshafts 9.1 and 9.2 each have...

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Abstract

An apparatus is described for needling a fibrous web having at least one needle bar. On its underside, the needle bar carries a needle board with a multiplicity of needles, wherein the needle bar is guided via a movably held bar carrier. The bar carrier is driven in an oscillating manner with a superimposed horizontal and vertical movement by a crank mechanism drive. To this end, a phase shifting device is provided, by which the crankshafts of the crank mechanism drive can be adjusted depending on the phase relation. Here, the movement of the bar carrier is guided by a guide device. In order to obtain stable guidance with high flexibility in every situation, according to the invention the guide device is formed by a steering rod which is connected at one end to the bar carrier by a rotary joint and which is coupled with the other end to a steering gear by a second rotary joint.

Description

technical field [0001] The invention relates to a device for needling a fiber web according to the preamble of claim 1 . Background technique [0002] A device of this type is known from DE 10 2005 012 265 A1. [0003] This known device is used to reinforce and structure fiber layers. For this purpose, the fiber web is pierced with a plurality of needles which are guided in a reciprocating motion. During this process the needles are therefore guided in a reciprocating vertical movement in order to reinforce the fiber material in the fiber web. In this process, the fiber web is continuously moved forward with a feed, preferably carried out by rollers. Since the needles are not smooth but are provided with barbs that are open in the direction of penetration, the individual fibers are caught during penetration and are reoriented within the fiber layer. A felting and reinforcement effect is thereby achieved. In order not to cause undesired deformations in the fiber web due ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H18/00
CPCD04H18/00D04H18/02
Inventor T·罗伊特A·普伦普A·迈尔D·布
Owner OERLIKON TEXTILE GMBH & CO KG
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