DE112009000085T5 - Method for handling, empty winding shafts supplied by a fiber web winder - Google Patents

Abstract

Method for manual handling of an empty winding shaft (2) supplied by a fiber web winder (1), wherein machine rolls (3) produced on a winder in the process are handled in one or more process sections following the winder (1) and the winding shafts (100) are empty. 2) are returned to the winder, characterized in that in the method the winder (1) an empty winding shaft (2) is supplied by a lateral transfer movement to a position which precedes the winding roller (4) of the winder in the process sequence.

Description

The The invention relates to a method of handling a fiber web unwinder supplied, empty Winding shafts, which produced in the process on a winder Machine rolls in one or more process sections following the winder be handled and the case made empty winding shafts to the Winders are returned.

As From the prior art, paper is used in machines made, which together form a papermaking line, which can be hundreds of meters long. Modern paper machines are able to produce more than 450,000 tons of paper per year. The speed of a paper machine can exceed 2,000 m / min (120 km / h) and the width of the paper web can be more than 11 m.

at is known from the prior art papermaking lines paper making is a continuous process. One on one Paper machine produced paper web is handled with a winder a winding shaft, that is a reel spool, wound in a machine roll, whose diameter 5 m and whose weight can exceed 160 tons. The purpose the winding is the paper web made in planar form into a more easily processed form. On the winder becomes the continuous process of the paper machine for the first time interrupted and a change to a periodic operation is carried out. The The goal is to perform the periodic operation as efficiently as possible not to destroy the already accomplished work.

The machine roller conveyor produced in papermaking runs over the full width and can exceed 100 m in length and therefore needs in partial webs of suitable width and length for the customers of the paper mill slotted or cut and wrapped around cores in so-called customer roles before they are shipped from the paper mill. The Cutting and wrapping the web can be found on one of the state of the art Technique known in a suitable, separate machine instead, this means a slitter.

As is known in the art, is in the slitter the machine roll unwound, the wide web is in the cutting section cut into several narrower partial webs, which on the winding section around winding cores, such as coils, wound up in customer rolls become. When the customer rolls are finished, the slitter becomes stopped and the roles, that is the so-called sentence, is removed from the machine, after which the process of winding a new sentence continued becomes. These steps or sections are repeated periodically, until the paper leaves the machine roll, whereupon the machine roll changed and the operation by winding a new machine reel again starts.

at high speed papermaking lines known in the art Can a paper machine produce more paper than a single one? Slitter can process, which is why several slitter are needed in the line, which are usually in the direction the machine line and side by side with a certain distance are arranged from each other. In the space between them is often a control room or equivalent arrangements for the machines arranged.

at As is well known in the art, the first winder is typically typical designed as a so-called in-line slitter, which means that it is arranged in line with the paper machine, that is in the Main machine line. The second slitter is a so-called offline slitter, this means it is not located in the center line of the paper machine, but usually next to the first slitter in his own, so-called Gang, that is in an extension of the for same engine room. Both slitters produce Customer rolls, which are transported by roller conveyors, for example, first to the roll wrapping machine to pack to become, and finally to a warehouse before they are delivered to the customers.

at Roll cutters known from the prior art become a machine roll usually with a hoist to a slitter in the Paper machine line brought, but not with transfer rails with connected to the paper machine, and lowered onto transfer rails, which are typically arranged so that the height of the center machine roll from ground level is approximately 2.5 m. at Embodiments, in which the winder and the slitter of the paper machine are interconnected by means of transfer rails, the machine role along the transfer rails from the winder to the winder transported.

The prior art transfer rails for full machine rolls consist of horizontal or inclined rails with waiting stations. A machine roll is transported from one holding station to another until it reaches an unwinding station. On horizontal transfer rails transport by means of a transport or transfer device and on inclined transfer seemed to be done by gravity, by allowing the machine roll to roll along the inclined transfer rails, with the waiting stations provided with mechanisms for stopping the machine roll and releasing it towards the unwinding station.

As is known from the prior art, there is the unwinding station typically consisting of two unwinding racks (front and drive side), which the machine roll during of unwinding. In the unwinding frames are articulated locking arms provided by means of which the machine roll in place for the duration Unwinding is locked. The machine roll in the unwinding station is connected to a brake generator which acts as the actuator is operated by the settler.

As is known in the art, after unwinding the empty reel spool, that is the winding shaft, usually either manually by lifting with a hoist or automatically by means of a handling device for the reel spool from the unwinding station away. The handling device for the reel spool is either from vertical lifts or swivel arms and upper return rails for empty Reel spools. An empty or nearly empty reel spool becomes lifted onto return rails with a lifting device or with lifting arms, on which usually several return station points available are. The return station (reel storage) is typically located above the unwinding or cutting and wrapping section. On the return rails is the reel spool either by means of the transfer device or by gravity by rolling by means of the stop and release mechanism transported from one station to another. An empty reel spool is from the return rails removed and by means of the hoist or partially by means of a Machine roller carriage transported on the winder of the paper machine.

The Prior art devices require various Lifting movements at one or more steps and normally becomes a hoist for used the same. The hoist can typically be a overhead crane or one on the floor level Supported out Be gantry crane. The hoist is usually manually from a Operator controlled. Some of the functions of the hoist can be automated be, for example, such that the operator the starting situation and confirms the direction and the destination and the hoist gives the command, lifting, transporting and depositing automatically perform. It is also possible, a substantially fully automatic handling device for winding shafts based on the use of lifting equipment to perform which but requires closed security areas or appropriate security measures, which increase the cost of the device. Lifting the massive Winding shafts, which weigh more than 30 tons, set the waves and their camps different types of damage and practices considerable personnel on the rail structures and foundations, which by reinforcing the Structures need to be factored in, which in turn adds extra Costs.

The The object of the present invention is to provide a method by means of which the above-described problems and disadvantages in Can be substantially eliminated.

Around solve the problem of the invention to be able to is the method according to the invention characterized in that in the method the winder a empty winding shaft by a lateral transfer movement to a Position supplied which is the winding roll of the winder in the process sequence precedes.

The Invention will be described below with reference to the figures of attached Drawing described in more detail, wherein:

1 Fig. 2 shows a schematic side view of a slitter-cutting arrangement in connection with which the present invention can be carried out;

2 a schematic plan view of the arrangement of 1 shows, and

3 a schematic side view of another roll cutting arrangement, in conjunction with which the present invention can be carried out.

The 1 - 2 show schematically a slitter assembly in connection with which the method according to the present invention can be applied. The arrangement shown in the figures shows a winder 1 in which a paper web (not shown) in the paper machine is applied to a winding drum 4 in a machine roll 3 around a winding shaft, that is a reel spool 2 , is wrapped. Completed machine rolls 3 be along transfer rails 15 to a standby or waiting station 5 transported, from which the machine rolls 3 further along transfer rails to an unwinding station 11 the slitter 10 be transported. In the illustrated application is the unwinding station 11 at the machine level M and the winding section 12 a cutting and customer roll winding section 12 is located in a room below the machine level. The cutting and winding section of the slitter in the bottom may consist of an aggregate having both a cutting and winding section and a winding section, or the cutting and winding section may consist of two separate units, one of which the cutting and winding section and the other has the winding section. From the standby station 5 the machine rolls are unwinding to the unwinding station 11 transported and after unwinding is the empty reel spool 2 to the return station 14 transported, which at the same time as a warehouse for empty reel spools 2 and, if scrap paper or canvas fabric on the reel spool 13 remains, preferably also serves as a discharge point for broke layers by placing a pulper (not shown) below the return station. At the depositing point, a machine roll rotating device rotates the lower layers of the machine rolls into the pulper. The same location and device may also be used to unload any paper broke layers or even to unload a whole broke machine roll in the pulper. In the above arrangement, the machine roll transfer rails of a so-called roll-type, that is, the unwinding station is also rolling, whereby the handling of the machine rolls or winding shafts is straightforward and simple.

In the method according to the invention, the transport of several bobbins from the return station is preferably carried out by means of a lateral movement, for example by means of a transfer carriage 20 which moves on the floor surface, whereby by means of the carriage, the winding shaft can be further supplied to the winder and transported to a point which of the winding roll 4 of the winder 1 precedes, and that, by means of a lateral transfer movement. In this application, the winding roll refers to a winding drum or other roll of the winder against which or on which the machine roll is formed. The path or path of the transport path is preferably arranged in such a manner that the height of the winding shafts does not change significantly during the transport section or the transport sections. A significant change relates to the maximum difference in the height of the machine rolls with respect to the winding roll of the winder over the entire handling area, the difference being determined by the tilt angle, at least the size of the radius of the winding shaft or, if gravitational machine roll transfer rails are concerned. 2 shows schematically by means of arrows A-C the transfer path of the winding shafts of the bearing 14 to the winding shaft 4 previous position.

3 schematically shows an alternative slitter assembly in which the parts, the 1 correspond, are denoted by corresponding reference numerals. The arrangement in 3 differs from the arrangement in 1 in that the roll cutting and customer roll winding section 12 is also positioned substantially at the machine level M. In this arrangement, the empty reel spool 2 in the unwinding station 11 is formed, preferably on the transfer car 20 which moves in the area between the unwinding station 11 and the cutting and winding section 12 is arranged, and then by means of the transfer carriage in a lateral transfer movement away from the unwinding station.

By transporting the winding shafts according to the invention in a controlled manner, substantially horizontally at the different sections of the transport, damage to the shafts and their bearings is prevented and the forces exerted on the rail structures and foundations are reduced. The dynamic coefficients used in dimensioning can be reduced and savings can be made in material costs. This is particularly reinforced by the continuous increase in the masses of the winding shafts, these masses are currently in the amount of 30 tons. The solution according to the invention does not require any substantial transport of the winding shaft in the direction of gravity or against it. Transports of the winding shaft in the horizontal direction are carried out, for example, by means of roller carriages, hovercars, conveyors, forklifts, straddle carriers or similar devices substantially different from a hoist. The carriage may run on the floor surface, for example, on wheels, on an air cushion or on rails arranged on the floor surface, for example held by rails provided on the side or above the carriages which are on the floor surface are supported. The return chain of the winding shaft to a preceding position to the winder can either fully automatically operate from the subsequent process section or sections in a most preferred embodiment, the winding shaft to the unwinding station or the unwinding of the subsequent process section or the process sections by means of a transfer device to the side is moved, such as with a roller carriage, or partially automatically, wherein a partial function may be provided, which can be performed by a hoist in conjunction with the unwinder, after which the winding shaft by means of the transfer device, such as a roller dare to be transported all the way up to the winding roll of the winder preceding position.

The solution according to the invention does not extend the machine layout because, if necessary, the quality measuring devices etc. at a different level with respect to the transfer path of the winding shaft are arranged. The method according to the invention is in connection applicable to any winder which is a paper, paperboard or fabric web wraps.

The solution according to the invention makes a fully automatic handling of winding shafts and a simpler and more economical application of the necessary safety precautions as possible with a hoist based arrangement. The Safety precautions can for example, according to the principles from currently used roller carriage solutions (motion detectors etc.) without the closed ones required for automated lifting equipment Safety area arrangements, etc. can be realized.

Summary

Method of handling a fiber web winder supplied, empty winding shafts

The invention relates to a method for manual handling of a fiber web winder supplied, empty winding shafts, being produced in the process on a winder machine rolls in one or more, the winder subsequent process sections and the case made empty winding waves are returned to the winder. In the process, the winder ( 1 ) an empty winding shaft ( 2 ) is supplied by a lateral transfer movement to a position which the winding roll ( 4 ) of the winder in the process sequence.

Claims (5)

Method for manual handling of a fiber web winder ( 1 ) supplied, empty winding shafts ( 2 ), machine rolls produced in the process on a winder ( 3 ) in one or more, the winder ( 1 ) subsequent process sections are handled and thereby made empty winding shafts ( 2 ) are returned to the winder, characterized in that in the method the winder ( 1 ) an empty winding shaft ( 2 ) is supplied by a lateral transfer movement to a position which the winding roll ( 4 ) of the winder in the process sequence. A method according to claim 1, characterized in that the transport of the winding shaft ( 2 ) of the winder ( 1 ) following position to the position preceding the winder by means of a transfer device ( 20 ) which moves on the floor surface or on the floor surface supporting structures. A method according to claim 2, characterized in that the transfer device is a transfer car for the winding shaft ( 2 ) which is intended to move on wheels, rails or an air cushion. A method according to claim 2 or 3, characterized in that the transfer device after the winding station ( 11 ) of the winder ( 1 ) subsequent process section for moving an empty winding shaft ( 2 ) outside the process line and on to the winder ( 1 ) to one of the winding roll ( 4 ) previous position of the winder is used in the process sequence. Method according to one of the preceding claims, characterized in that the path of the transfer path of the winding shafts ( 2 ) is arranged in such a manner that the height of the winding shafts does not substantially change during the transfer section (s).

Images