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Device and method for measuring the winding weight or winding thickness at the inlet of a carding machine

A cotton lap, measuring gap technology, used in textiles and papermaking, fiber processing, fiber feeding, etc., can solve problems such as jamming, and achieve the effect of reducing inertia, effective monitoring, and improving sensitivity

Inactive Publication Date: 2010-08-18
USTER TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, it can avoid the accumulation of dirt in the lap material and get stuck

Method used

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  • Device and method for measuring the winding weight or winding thickness at the inlet of a carding machine
  • Device and method for measuring the winding weight or winding thickness at the inlet of a carding machine
  • Device and method for measuring the winding weight or winding thickness at the inlet of a carding machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] Figure 1 shows a preferred embodiment of the device 10 of the invention. The device 10 serves to measure the mass or thickness of a web-shaped or lap-shaped lap 5 moving in the x-longitudinal direction. It is usually located in the infeed section of the card where feed roll 1 and licker-in roll 3 are shown. (The feed roller 1 is shown in perspective in the view of Fig. 1(b) to clearly show the underlying components). The device 10 comprises a fixed rigid feeding plate 4 for guiding the lap 5 . The feed roller 1 is driven to rotate to deliver the lap 5 to the carding machine. The feeding roller 1 extends over the entire width (y-direction) of the feeding flat plate 4 . The shaft 2 of the cotton feeding roller 1 is set according to the cotton feeding flat plate 4, and a measuring gap 8 is created between the outer surface of the cotton feeding roller 1 and the guide rail surface of the cotton feeding flat plate 4, so that the cotton feeding flat plate 4 guides the cott...

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Abstract

The device (10) for measuring the weight or thickness of a moved lap (5) comprises a stationary, rigid feed table (4) for guiding the lap (5). The lap (5) is compressed in a measuring gap (8) delimited by the feed table (4) and a feed roller (1). In the region of the measuring gap (8), a plurality of probes (7) are recessed into the feed table (4), the probes being disposed in different locations (y) along the width of the feed table (4) and being independent from each other. Each probe (7) is associated with a force sensor (19) without displacement for generating an electric signal, which is a measure of the weight or thickness of the lap (5) at the location of the respective probe (7). The device (10) has a high measurement resolution and measuring accuracy, high dynamics and a short measurement length. It can be used for the web control of a carding machine according to the principle of open-loop control.

Description

[0001] Technical area [0002] The invention is used in the field of spinning preparation, especially in the field of sliver finishing of open-loop controlled carding machines. As stated in the preamble of the independent claim, it relates to a device and a method for measuring the mass or thickness of a moving lap. Background technique [0003] In preparation for spinning, the cotton fibers are opened and cleaned and mixed into pile, filling or general cellulose, which are collectively defined below as laps. The lint contained in the lap is separated in the card until it forms individual fibers and fiber bundles arranged longitudinally. The continuous sliver obtained from the yarn is spun in a subsequent process. In order to obtain high yarn quality, the laps must be fed to the card as evenly as possible, ie the quality of the laps fed per unit time is constant. For this, it is well known to constantly measure the lap quality or lap thickness and use an open-loop control s...

Claims

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Application Information

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IPC IPC(8): D01G23/06
CPCD01G23/06
Inventor 弗朗索瓦·贝克雷尔
Owner USTER TECHNOLOGIES
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