Process for working a pile in a pre-needling apparatus and apparatus for doing so

A fleece fabric, pre-needling technology, applied in the direction of needle punching machines, non-woven fabrics, textiles and papermaking, etc., can solve problems such as removal, and achieve the effect of simplifying driving elements and compact mechanism

Inactive Publication Date: 2007-01-10
艾塞林－蒂博公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in an imprint which cannot always be removed by subsequent consolidation steps

Method used

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  • Process for working a pile in a pre-needling apparatus and apparatus for doing so
  • Process for working a pile in a pre-needling apparatus and apparatus for doing so
  • Process for working a pile in a pre-needling apparatus and apparatus for doing so

Examples

Experimental program
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Embodiment Construction

[0047] In the embodiment shown in FIG. 1 , along the path 1 of the fiber fleece (not shown in FIG. 1 ), the device comprises a prepunching device 3 according to the invention directly in front of the consolidation device 2 . In addition, a feeding device 4 is arranged upstream of the prepunching device 3 with respect to the advance direction 6 of the fleece, and an extraction device 7 downstream of the needling device 2 comprises two rotating rollers 8 between which a Gripping wires or jaws 9 for the fleece along a substantially planar path 1 .

[0048] Subsequently, "far" and "near" mean "farther" and "closer" to the plane of path 1, respectively.

[0049] The pre-punching device 3 and the needling device 2 are jointly located in a single cabinet 11 and thus form part of the same machine. The cabinet 11 has an inlet window 12 in which the feeding device 4 is installed and an outlet window 13 in which the extraction device 7 is installed.

[0050] The acupuncture device 2 it...

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Abstract

The method involves executing an elliptic type combined movement in a pre-needling apparatus (3), where the combined movement includes back-and-forth movement and a forward movement of pre-needling needles (47). The forward movement of the needles is utilized for providing a movement to a stack of the apparatus (3) for allowing the introduction of the stack in a consolidation apparatus (2). The stack is directly passed from the apparatus (3) to the apparatus (2), where the apparatuses (2, 3) are combined in a common case (11) for forming a single machine. An independent claim is also included for an installation for working a stack in a pre-needling apparatus.

Description

technical field [0001] The invention relates to a method for producing fleece in a pre-needling device and in a subsequent consolidation device. [0002] The invention also relates to a device for carrying out the method. Background technique [0003] Typically, non-consolidated fiber fleece is made from overlapping layers of fibers fed, for example, from a crosslapper. In each layer, the fibers are parallel to each other. However, the orientation of the fibers in one layer differs from the orientation of the fibers in the layers immediately above and below that layer. [0004] Unconsolidated fleece has to be processed in a consolidation machine which inter alia interconnects one layer of fibers with another and simultaneously compacts the fibers. Once consolidated, the fleece has considerable mechanical strength. The fleece can thus be removed from the consolidation machine relatively easily, for example by conveying the fleece between two pinch rollers. [0005] In co...

Claims

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Application Information

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IPC IPC(8): D04H18/00
CPCD04H18/02
Inventor R·让F·路易
Owner 艾塞林－蒂博公司
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