CA1118397A

CA1118397A - Paper reel synchronizing system

Info

Publication number: CA1118397A
Application number: CA000315583A
Authority: CA
Inventors: Robert Greding
Original assignee: Dominion Engineering Works Ltd
Current assignee: Dominion Engineering Works Ltd
Priority date: 1978-10-31
Filing date: 1978-10-31
Publication date: 1982-02-16
Also published as: JPS5561551A; IT7926825A0; IT1124671B

Abstract

ABSTRACT OF THE DISCLOSURE

The reel bar guides for a paper reeling machine include a pair of track-mounted spaced apart carriages on which the reel bar end bearings are respectively mounted, and a looped cable system interconnecting each end of each carriage with the other carriage.
including guide pulleys to maintain the cable runs in tensioned free-running relation, whereby displacement of one carriage in a first direction along its respective track produces simultaneous displacement of the other carriage in the same direction along the other track.

Description

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This invention is directed to paper winding machinery and in particular to a reel bar carriage arrangement to provide synchronized displacement of the ends of the reel bar along the supporting tracks thereof.
In the paper machine art, particularly in paper reeling, wherein the support of a reel bar is provided by movable bearings, the maintenance of the reel bar in parallel relation with the reel drum presents a continuing problem, even during withdrawal of thecompleted roll, in order to avoid damage to the reel bar bearing tracks.
Various complex arrangements for solving this problem have been presented. The presently disclosed arrangement provides a low cost solution of classic simplicity.
The present arrangement provides a synchronizing system to provide synchronized displacement of a pair of spaced apart carriages for movement in predetermined directions along a pair of tracks, comprising flexible, substantially inextensible connection means extending in opposite directions from each of the carriages to provide displacement of each carriage in a first direction and the revexse direction respectively along the respective track, the connection means being connected to provide continuous interconnection there-between, and guide means securing the flexible connection means in looped, continuously tensioned relation, whereby displacement of one carriage in one direction produces equal displacement of the other carriage in a corresponding direction along the other track.
Displacement of the carriage is produced by mover means connected to at least one of the carriages, for selective displacement of the carriage along the track.
In the subject embodiment the tracks are substantially parallel with each other.
Certain embodiments of the invention are described, 3~7 reference being made to the accompanying diagrammatic sketch representing a plan view of a portion of a winding machine incorporating the subject invention.
Referring to the drawing the reeling arrangement 10 comprises a removable reel bar 12 incorporating end bearings 14 each of which is detachably mounted on a carriage 16.
Each carriage 16 is mounted on a track 17, 18, the tracks 17, 18 being parallel one with the other, located adjacent the reel drum.
Cylinder actuators 20 each has the piston portion 21 pinned to the respective carriage 16, to push a completed parent roll away from the reel drum to the far end of the tracks, the actuators 20 being pneumatic.
Substantially inextensible cables 22, 24 connect the front end of one carriage with the back end of the other carriage.
Pairs of guide pulleys 26, 26, 28, 28 maintain general alignment of the cables 22, 24 with the carriages and the respective tracks 17, 18, while two or more vertically inclined pulleys 30 permit the positioning of the cable runs across the machine i.e. cable portions 33, 35, extending generally parallel with the axis of the reel drum.
The maintenance of tension in the cables 22, 24 is effected by use of turn buckles 27 acting against the "horizontal"
pulleys 26 to maintain the cables in a tensioned condition. The turn buckles also may be inserted in the runs of the cables.
In the illustrated embodiment the respective actuators are shown as being double acting pneumatic actuators connected to an air supply by way of a manual control 40 having an inter-mediate null position, and being movable to the left, as illustrated to discharge the reel bar 12 rightwardly away from the reel drum, and vice versa.
Since the winding parent roll may become slightly larger-in diameter at one end than the other end due to sheet caliper variations, provision is made at one carriage to permit 3~37 slip of the cable 22 about one inch in either direction, to maintain parallelism of the roll face.
A

Claims

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. In a paper reeling system having a rotatably mounted reel drum for reeling paper thereon, a removable reel bar for applying pressure against a roll being reeled on said drum and incorporating end bearings, each said bearing detachably mounted on a carriage; a rotatably mounted reel drum; a pair of tracts extending substantially normally to the drum in spaced apart relation, each having a said carriage mounted in sliding relation thereon; an air cylinder adjacent each track attached to a respective said carriage to displace the carriage along the track, including air admission control means for selectively admitting air simultaneously to each said air cylinder in an advancing or a retracting sense;
mechanical synchronizing means interconnecting the two said carriages including substantially inextensible cable means looped in tensioned relation as an endless loop arranged to maintain the carriages in substantially mutually parallel relation, and lost motion means interconnecting said cable means and one said carriage to permit limited skewing of said reel bar relative to said drum in roll building operation.