Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method in a continuously operating unwind for a fibre web, in particular for a paper or board web, and a continuously operating unwind for a fibre web, in particular for a paper or board web

A fiber web and equipment technology, applied in the field of uncoiling equipment, can solve the problems of increased risk of web breakage, deterioration of adhesion, increased web breakage, etc.

Active Publication Date: 2009-09-16
METSO PAPER INC
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, sudden increases in web tension increase the risk of web breakage
[0007] Another drawback is that, when the diameter profile of the machine roll to be spliced ​​is carrot-shaped, the splicing rollers cannot follow this profile, which worsens the adhesion of the splice and will increase the risk of web breaks

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method in a continuously operating unwind for a fibre web, in particular for a paper or board web, and a continuously operating unwind for a fibre web, in particular for a paper or board web
  • Method in a continuously operating unwind for a fibre web, in particular for a paper or board web, and a continuously operating unwind for a fibre web, in particular for a paper or board web
  • Method in a continuously operating unwind for a fibre web, in particular for a paper or board web, and a continuously operating unwind for a fibre web, in particular for a paper or board web

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In the figures, the web being wound is indicated by the reference W; the splicing roll is indicated by the reference 12; the web guide roll of the splicing device is indicated by the reference 11; the new machine roll is indicated by the reference 13 indicates that after splicing it becomes uncoiled from said new machine reel; the old machine reel is indicated by reference numeral 10 from which the web was uncoiled before splicing. The cutting blade of the cutting device of the web W is indicated by reference numeral 15 . In splicing, the old web is brought close to the face of the new machine roll 13 and the web is pressed against the face of the machine roll 13 using the splicing roll 12 . The old web is cut with a cutting knife 15 . The guard 16 prevents shredded paper from entering the splicing-related nip between the splicing roll 12 and the new machine roll 13 , ie the splicing nip. In addition to the splicing roll 12, the splicing device thus comprises at least...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method in a continuously operating unwind for a fibre web, in particular for a paper or board web, in which unwind a machine reel is unwound in a primary station and in a secondary station, and in which a new machine reel (13) brought to the unwind is joined at full speed to a web (W) of an emptying machine reel (10) by means of a splice roll (12) of a splicing device. In the method the old machine reel (10) and the new machine reel (13) are moved substantially horizontally. In the method the new machine reel (13) and the old machine reel (10) are moved by means of two pairs of linearly movable carriages such that the unwinding starts on a pair of carriages that has a primary brake gen not erator for control of web tension, acceleration of the new machine reel (13) to unwind speed being carried out while the carriage moves towards the primary winding station. The invention also relates to a continuously operating unwind for a fibre web, in particular for a paper or board web, for carrying out the method. The unwind comprises a primary station and a secondary station as well as a splicing device comprising a splice roll (12) and a web guide roll (11), which unwind comprises means for moving an emptying machine reel (10) and a new machine reel (13) substantially horizontally. The unwind further comprises two pairs of linearly movable carriages and that both pairs of carriages comprise a brake generator.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 . [0002] The invention also relates to an unwinding device (unwind) for carrying out the method according to the preamble of claim 10 . Background technique [0003] Off-machine coaters use a continuously operating uncoil where a new machine reel sent to the unwind is connected at full speed to the end of the machine reel that becomes empty. A splice was made at the end of the web on a new machine roll using double sided adhesive tape to join the end of the web to the face of the roll. The surface speed of the new machine roll is accelerated to as close as possible to the operating speed of the machine; afterward, the web on the empty machine roll is pressed by rollers onto the aforementioned splice. Use a knife to cut the old web on the trailing side of the splice. The splicing device comprises a splicing roller followed by a web guide roller and an actuator moving said roller...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B65H19/18
CPCB65H2301/46412B65H19/1815B65H2301/41734B65H19/1863B65H2301/41361B65H19/126
Inventor 泰波·科乔马尔科·蒂立凯宁珀特里·阿西凯宁蒂莫·T·海迈莱伊宁
Owner METSO PAPER INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com