US 5,782,426 AGranted

Method and device for reeling a paper or board web

AssigneeValmet Corporation

InventorsJorma Kinnunen, Silvo Mikkonen

Life of this patent

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Abstract

A method and device for reeling a paper or board web, wherein a first reel spool is in a reeling position in nip-defining relationship with a reeling cylinder and an empty second reel spool is placed in a stand-by position, the web is carried on a belt until it is reeled onto the first reel spool and the belt is guided in a run over the reeling cylinder and a guide roll, the first reel spool being transferred from the reeling position and pushed by the guide roll to a change position and the second reel spool is moved to the reeling position when the reel formed on the first reel spool is complete. The reeling of the web is transferred from the reel formed on the first reel spool to the second reel spool by cutting the entire width of the web by initially cutting a middle region of the web to form a tip and then extending the tip to side edges of the web, blowing the tip onto the second reel spool when the second reel spool is in the reeling position, and applying an adhesive proximate a rear edge of the web reeling onto the first reel spool in advance of a cut line separating the web reeling onto the first reel spool and the tip simultaneous with the cutting of the entire width of the web. The adhesive is applied at a uniform distance from the cut line so as to glue and fix the rear edge of the web to an underlying web portion of the web reeling onto the first reel spool.

Claims20

Dependent claims

In a method for reeling a paper or board web, wherein a first reel spool is in a reeling position in nip-defining relationship with a reeling cylinder and an empty second reel spool is placed in a stand-by position, the web being carried on a belt until it is reeled onto the first reel spool, the belt being guided in a run over the reeling cylinder and a guide roll, the first reel spool being transferred from the reeling position and pushed by the guide roll to a change position and the second reel spool being lowered into the reeling position when the reel forming on the first reel spool is complete, the reeling of the web being transferred from the reel formed on the first reel spool to the second reel spool while the first reel spool is in the change position and the second reel spool is in the reeling position, the improvement comprising:

the transfer of the reeling of the web while the first reel spool is in the change position and the second reel spool is in the reeling position comprising the steps of:
cutting the web across its entire width by initially cutting a middle region of the web to form a tip and then cutting the web between the middle region and side edges of the web by extending the tip to the side edges of the web to thereby form a cut line separating the web reeling onto the first reel spool and the tip,
directing the tip onto the second reel spool after the tip has been formed by cutting the middle region of the web and before the tip is extended to the side edge of the web, and
applying an adhesive onto the web reeling onto the first reel spool proximate a rear edge of the web in advance of the cut line in a running direction of the web and at a uniform distance from the cut line substantially simultaneously with the cutting of the web across its entire width so as to glue and thereby fix the rear edge of the web to an underlying web portion of the reel formed on the first reel spool.

1 more element

A device for transferring the reeling of a paper or board web in a drum reel-up, the drum reel-up including a reeling cylinder, a first reel spool situated in a reeling position in nip-defining relationship with said reeling cylinder whereby the web is guided through the nip onto said first reel spool, a guide roll and a belt passing over said reeling cylinder and said guide roll for supporting the web during reeling onto said first reel spool, said first reel spool being transferred from the reeling position and pushed by said guide roll to a change position and a second reel spool being transferred into the reeling position when the reel forming on said first reel spool is complete, the device comprising

cutting means for cutting the web across its entire width by initially cutting a middle region of the web to form a tip and then cutting the web between the middle region and side edges of the web by extending the tip to the side edges of the web, said cutting means comprising first and second water nozzles adapted to direct a penetrating water jet at the web,
guide means for guiding the tip onto the second reel spool when the second reel spool is in the reeling position,
adhesive means for applying an adhesive proximate a rear edge of the web reeling onto the first reel spool, said adhesive means comprising first and second adhesive nozzles and being arranged to operate simultaneous with said cutting means,
a first displaceable sledge, said first water nozzle and said first adhesive nozzle being mounted on said first sledge, said first adhesive nozzle being arranged relative to said first water nozzle such that a first strip of adhesive applied by said first adhesive nozzle to the rear edge of the web reeling onto the first reel spool is substantially parallel to and at a substantially uniform distance from a first cut line in the web resulting from said water jet from said first water nozzle,
a second displaceable sledge, said second water nozzle and said second adhesive nozzle being mounted on said second sledge, said second adhesive nozzle being arranged relative to said second water nozzle such that a second strip of adhesive applied by said second adhesive nozzle to the rear edge of the web formed on the first reel spool is substantially parallel to and at a substantially uniform distance from a second cut line in the web resulting from said water jet from said second water nozzle,
first displacement means for displacing said first sledge in a direction transverse to a running direction of the web,
second displacement means for displacing said second sledge in the direction transverse to the running direction of the web,
first guide means for guiding the displacement of said first sledge via said first displacement means from a middle region of the web to a first one of said side edges of the web, and
second guide means for guiding the displacement of said second sledge via said second displacement means from the middle region of the web to a second one of said side edges of the web.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/721,794Filed 26 Sep 1996
Priority: FI 95463129 Sep 1995
Granted: 21 Jul 1998
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B65H 18/22
Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web: by friction band
B65H 19/2238
In winding mechanisms or in connection with winding operations: the web roll being driven by a winding mechanism of the nip or tangential drive type
B65H 19/265
Cutting-off the web running to the wound web roll: using a cutting member moving linearly in a plane parallel to the surface of the web and along…
B65H 19/29
In winding mechanisms or in connection with winding operations: securing the trailing end of the wound web to the web roll