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Device for needling a web of fiber

A technology of fiber web and equipment, which is applied in the field of equipment for needle punching fiber web, and can solve problems such as large vibration of the machine frame

Inactive Publication Date: 2012-03-14
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in known devices, a higher stroke frequency and a correspondingly higher production speed as well as a larger horizontal stroke of the needle beam necessarily lead to greater vibrations in the machine frame

Method used

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  • Device for needling a web of fiber
  • Device for needling a web of fiber
  • Device for needling a web of fiber

Examples

Experimental program
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Embodiment Construction

[0027] exist Figure 1.1 and 1.2 A first embodiment of an apparatus for needling a fiber web proposed by the present invention is shown in . This example is in Figure 1.1 and 1.2 are shown according to different operating conditions. Therefore, the descriptions made apply to both figures. This embodiment of the device proposed by the invention has a beam support 2 to which a needle beam 1 is fastened on its underside. A needle bar 24 equipped with a plurality of needles 25 is fastened to the needle bar 1 on its underside.

[0028] A vertical drive 3 and a horizontal drive 10 act on the beam support 2 . By means of the vertical drive mechanism 3 , the beam support 2 can be moved vertically, so that the needle beam 1 with the needle plate 24 performs an up and down movement. The vertical drive mechanism 3 is formed by two crank mechanisms 4.1 and 4.2 arranged in parallel. The crank mechanisms 4 . 1 and 4 . 2 have two parallel crankshafts 5 . 1 and 5 . 2 , which are arrang...

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PUM

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Abstract

The invention relates to a device for needling a web of fiber, said device comprising at least one driven needle beam. A vertical reciprocal movement of the needle beam is carried out by a vertical drive unit and a superposed horizontal reciprocal movement is carried out by a horizontal drive unit or due to a phase adjustment by the vertical drive unit. A weight balancing device is provided for balancing the inertia forces of the crank mechanisms. In order to be able to balance both vertical and horizontal inertia forces in a simple manner, the weight balancing device is formed by at least one balance weight which is associated with the crank mechanism of the vertical drive unit and which is set-off by an angle in the range of <180 DEG from an eccentric element of the crank mechanism.

Description

technical field [0001] The invention relates to a device for needling a fiber web. Background technique [0002] In equipment for needling fibrous webs, there is a needle beam with a plurality of needles fixed on its underside, which is driven in an oscillating up and down movement so that the needles pierce repeatedly. A fiber web guided on a substrate. To drive the needle beam, a crank mechanism is usually used, wherein the eccentric mass, which circulates eccentrically, is usually compensated for the purpose of mass balancing by means of a corresponding counterweight on the crankshaft. In this way, the inertial effects due to the rotating and oscillating masses can be kept so low within the device that no impermissible vibrations occur in the machine frame. In order to be able to achieve high production speeds in the needling of fiber webs, certain drive concepts are known for the needle beams, whereby, in addition to the up and down movement, a superimposed, horizontal...

Claims

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Application Information

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