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A method of operating a sliver lap machine and a sliver lap machine operated by the method

A sliver and spool technology, applied in winding mechanism, textile and papermaking, fiber processing, etc., can solve impossible, difficult and other problems

Active Publication Date: 2019-08-23
TRUETZSCHLER GRP SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, this makes it difficult or impossible to automatically attach one sliver end to another sliver end (also referred to as "auto-lapping") for continuous combing that overcomes sliver boundaries. not even possible

Method used

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  • A method of operating a sliver lap machine and a sliver lap machine operated by the method
  • A method of operating a sliver lap machine and a sliver lap machine operated by the method
  • A method of operating a sliver lap machine and a sliver lap machine operated by the method

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Embodiment Construction

[0035] figure 1 A sliver coiler 1 according to a first embodiment of the invention is shown and has only the components which are essential for the invention. For the sake of clarity, other components such as creel, drafting device etc. are not shown.

[0036] The sliver 7 comes from a drafting device (not shown), indicated here by the blank end on the right, and passes through a pressing device provided here with three pressing rollers 5 a - 5 c . The pressure rollers 5 a - 5 c are driven and freely rotatably mounted on the frame 6 in the usual manner. In this case, the pressure rollers 5 b , 5 c form, in their region facing the free end of the sliver 7 , the inlet E of the pressure roller arrangement. The sliver leaves the nip roll arrangement at outlet A of the arrangement and touches the nearest lap roller 4b of a not further indicated lap arrangement, here in the form of two lap rollers 4a, 4b form of the device. The sliver 7 passes through the lap rollers to the bobb...

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PUM

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Abstract

The invention relates to a method of operating a sliver lap machine (1), wherein a sliver lap (3) of a predetermined size is firstly formed; then a thin section (7a) is formed in a sliver (7) betweena device inlet of calender rollers (5a-5c) of the silver lap machine and a fixed position arranged upstream the inlet along a sliver conveying direction; and then tearing the sliver wound onto a bobbin (2) in the thin section area from the sliver left in the silver lap machine. The silver lap machine is provided with a drafting device and calender rollers (5a-5b). The calender rollers are providedwith lap devices (4a, 4b) used for reinforcing slivers from the drafting device and conveying the silvers to the silver lap machine. The lap devices are provided with a bobbin (2) used for rotation and arranged adjacent to the silver conveying direction (12), and the silver from the calender rollers is wound on the bobbin. The silver lap machine has a fixing device disposed at a fixed position, and the fixing device fixes a fed silver or releases a silver along the silver conveying direction according to an operation state. The silver lap machine is operated according to the method.

Description

technical field [0001] The invention relates to a method for operating a coiler and a coiler operated thereby. Background technique [0002] Strip coilers are known per se. The strip winder introduces fiber strips from a plurality of cans, such as 24 cans, and places the fiber strips side by side as seen in the transport direction to form fiber strips, and drafts the fiber strips formed in this way in a drafting device. A flattened sliver is formed and transported in the sliver transport direction through a device with usually three nip rollers to a device with usually two lap rollers. The compression rollers consolidate the sliver coming from the drafting unit and squeeze out the air. The bobbin to be wrapped rests on the lap roller. The consolidated sliver from the pinch roll moves away from the pinch roll between lap rollers and bobbins. Due to the weight of the bobbins, the sliver reaches the surface of the bobbins, which are in rotation due to the friction of the la...

Claims

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Application Information

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IPC IPC(8): D01G27/00D01G27/02
CPCD01G27/00D01G27/02
Inventor 托马斯·施密茨
Owner TRUETZSCHLER GRP SE
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