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Method and devices for producing textile lap

The technology of a cotton net and an adjusting device is applied in the field of producing textile cotton nets to achieve the effect of increasing the output

Inactive Publication Date: 2005-02-09
阿斯兰迪搏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] This method of forming a cotton web has certain limitations

Method used

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  • Method and devices for producing textile lap
  • Method and devices for producing textile lap
  • Method and devices for producing textile lap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0066] In the example of FIG. 1 , the apparatus comprises a card 1 and a crosslapper 2 .

[0067] The card 1 comprises a frame 3 supporting a carding cylinder 4 which is driven in rotation by an electric motor 6 . The frame 3 also supports at least one "cotton feeder" 7 consisting essentially of a conveyor belt driven in rotation by an electric motor 8 . The cotton feeding device 7 is loaded with textile fibers 9 from a reservoir and is usually deposited on the periphery of the cylinder 4 with the intermediary of at least one cylinder 10 . Thus, the cotton feeding device 7 regularly regenerates a layer of fibers 11 on the periphery of the cylinder 4 . Around the periphery of the cylinder 4 there are several cylinders of known type, such as 12, (only a pair of which are shown here for the sake of clarity), which are used to work the fibers, especially to place them on the cylinder 4. Orientation is done around the periphery.

[0068] The fibers from the cotton feeder 7 arriv...

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PUM

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Abstract

The invention concerns a card or any other apparatus for producing a web (1) feeding a distributor layer (2) two elementary webs (15a, 15b) constituting a lap web (16) deposited in reciprocating motion on a transverse output conveyor (26). In the apparatus (1) means for adjusting the speed of card doffers (13a, 13b), condensers (17, 18), web doffers (19a, 19b), cylinder (4) and / or feeder (7), and / or means for adjusting the cylinder-card doffer spacing affect the surface weight of the elementary web depending on the surface weight required at each point in the lap width to be constituted on the output conveyor. The method consists in determining the delay incurred by each elementary web section for which the weight is being adjusted relative to the lap web being deposited; deducting therefrom the position where each web section will be deposited when the adjustment for its weight is carried out, thereby determining the weight adjustment to be applied thereto. The invention is useful for producing with high industrial flexibility laps with great variety of profiles.

Description

technical field [0001] The invention relates to a method for producing a textile cotton web by means of a crosslapper. [0002] The invention also relates to various devices in which this method may be used. Background technique [0003] It is known to produce a foldable web in a card or other such as a pneumatic web layer. The foldable web thus obtained is fed into a crosslapper where the web is folded alternately in one direction and then in the other direction on an output belt. The web is thus made up of segments which overlap each other alternately in one direction and in the other. The folds between successive web segments are aligned along the sides of the resulting web. [0004] The resulting web is typically used for subsequent curing processes such as needling, coating and / or other processes. [0005] French patent FR-A-2 234 discloses the speed relationship which must be followed in order to control the thickness of the web at all poi...

Claims

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Application Information

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IPC IPC(8): D01G15/46D01G25/00D04H1/74D04H13/00
CPCD01G15/46D04H1/74D01G25/00D04H13/00
Inventor B·茹尔德J·-C·洛尼R·让
Owner 阿斯兰迪搏
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