FI120299B - Fiber web manufacturing and / or processing line - Google Patents

Description

Fiber web production and / or processing line

The present invention relates to a fiber web production and / or processing line according to the preamble of claim 1, comprising a machine roll and / or spindle processing arrangement comprising at least a fiber web production and / or processing line. a winder and two process units comprising a winder and an unwinding unit for carrying out a fiber web manufacturing and / or processing process, and means for transferring the machine rolls and / or the roll 10 axis to the process units.

As is known in the art, paper is produced on machines that together form a paper production line that can be hundreds of meters long. Modern paper machines can produce more than 450,000 tonnes of paper per year. 15 The speed of the paper machine web can be over 33 m / s and the paper web width can be over 11 m.

In papermaking lines, papermaking is a continuous process. A paper web made from a paper machine is rolled around a reel axis, 20 reel rolls, into a machine roll, which can be over 5 m in diameter and over 160 tons in weight. Once the diameter of the machine roll is predetermined, the reeling on an empty reel of reel is started without interrupting pre-roll paper production. The purpose of the winding is to convert a flat paper web into a more manageable shape. With the reel, the continuous process of the papermaking machine 25 is interrupted for the first time and switched to intermittent operation. The aim is to achieve this periodicity with the best possible efficiency so that the work already done is not wasted.

The papermaking line can be used for certain types of paper to perform post-process treatments such as coating or treatment affecting the surface properties of the paper 2, such as calendering. These processes can be either separate installations or processing in the manufacturing process.

The web of papermaking machine roll is full-width and even more than 5,100 km long, so it has to be cut into a sheet suitable for the paper mill's customers for this length and length and rolled around the cores. customer rolls before shipment from the paper mill. This web longitudinal cutting and reeling takes place in a separate machine known in the art, i.e. a winder.

10

As is known in the prior art, in a winder, the machine reel is unwound, the wide web is cut by a cutting member into a number of narrower subwires which are wound by a reeling member around reel cores such as cores to customer rolls. When the customer rolls of each sub-web are simultaneously made, the winder is stopped and the rolls, or so-called "rollers", are stopped. the move is removed from the machine. After that, the process will continue as a new move. These steps are repeated periodically until the paper runs out of the machine reel, when the machine roll changes are performed, the operation begins again as the new machine reel rolls. There are often two pieces of length cutters per paper machine, one of which is 20 on the center line of the paper machine and the other is on the side of the center line of the paper machine. Thus, the transfer of the full machine roll must be arranged between the paper machine retractor and the unrolling unit of both winders.

Processes carried out on papermaking lines thus require the transfer of machine rolls and empty winding shafts from one process to another. Because of the high weight of the machine roll, their transfer during the process is carried out according to the prior art, typically along the rails, assisted and supported by machine members therein. Longer distances, and particularly transverse to the center line of the paper machine, are typically made by transport trolleys that run along the rails arranged on the floor of the data center.

Such solutions are process-challenging, for example in terms of handling order and storage of machine rolls, whereby process units are relatively inflexible in terms of capacity changes. For example, different or variable capacities of two process units are difficult to implement on a ver-5 wheel. In addition, such arrangements with two lines side by side take up space along the width of the machine and require a wider construction. This in turn causes difficulties in locating rails for transferring machine rolls or other similar transfer devices.

It is an object of the invention to provide a fiber web production and / or processing line according to the preamble of claim 1, which achieves, at low cost, significantly more flexible capacities and changes thereof between process units. At the same time, it is intended to provide a functional layout where the transfer of the machine reels or winding shafts is easily to-15. In other words, the prior art bulky handling line solutions described above are avoided and the problems of handling and storing machine rolls and / or reel shafts are avoided.

This object is achieved by the fiber web production and / or processing line according to the invention mainly by the fact that at least the first longitudinal cutter belonging to the first process unit is arranged substantially parallel to the fiber web production and / or processing line. and that the second longitudinal cutter 25 of the second process unit is arranged in a direction different from the direction of the manufacturing and / or processing line.

In this specification and claims, a direction deviating from the manufacturing and / or processing line means a direction substantially different from the main direction of the manufacturing and / or processing line, such as transverse direction, wherein the second winder is at an optional angle to the main direction of the manufacturing and / or processing line. The angle is preferably 90 °, but it can also be e.g. 30 ° or about 45 °. The angle is selected to be preferred based on the sequence of the process and the area.

This arrangement produces the effect that the handling and arrangement of the machine rolls and / or roll shafts as a whole is formed into a system which is easily adaptable to the required capacity of the process at a low cost. In addition, very flexible displacement and pivoting of the machine rolls and / or winding shafts between the retractor and the process units 10 is achieved and the use of the surface is efficient.

The arrangement according to the invention also enables the optimization of the space utilization and the required building size is significantly smaller.

Preferred embodiments of the present invention are set forth in the dependent claims.

In this context, a fiber web machine refers to various fiber web manufacturing or processing equipment, such as paper machines, coating machines, calenders and board machines.

In the following, the invention and its operation will be described with reference to the accompanying drawings, in which: Figure 1 schematically illustrates a fiber web production and processing line according to an embodiment, and

Figure 2 schematically shows a production and processing line of a fibrous web according to another embodiment.

30 5

Figures 1 and 2 schematically illustrate two different embodiments of a fiber web manufacturing and processing line, and of its machine reel 3 processing arrangement 1. In these embodiments, the manufacturing and processing line comprises a fiber web machine 40, and an associated retractor 5. characterized by its function and basic construction, wherein the finished fiber web W is formed around a winding shaft 2 into a complete machine reel 3. The retractor 5 comprises a full pick up station 6 of a reel 3 to which the reel moves a finished machine reel 3 ' -10 dilute spindle support arrangement not shown herein. The receiving station may be located, for example, in a space above the reel. In this embodiment, the roller machine roll pickup station 6 may be a relatively short rail 4 or a roller carriage which, upon completion of the roll, is sufficiently displaced from the roller cylinder. With the reel, the finished reel 3 is moved forward on the processing line.

The production line includes a first process unit 10 and a second process unit 20, both of which include at least a winder 11 and 21 and a unwinding unit 12 and 22.

20

The first longitudinal cutter 11 is arranged in the embodiment shown in Fig. 1 in the direction of the fiber web machine 40 such that the first longitudinal cutter 11 is in the direction A of the manufacturing and / or processing line, and preferably in the center line thereof.

25

In the embodiment shown in Fig. 2, the first longitudinal cutter 11 is arranged in a direction B substantially deviating from the direction of the manufacturing and / or processing line, preferably substantially perpendicular to the direction. Although the following will focus on the embodiment of Figure 30, the reference numerals 6 for the various functions and parts described therein also apply to the corresponding features and parts 2 shown in the figure, which are represented by the same reference numerals.

In Figures 1 and 2, the second longitudinal cutter 21 is arranged in a direction B deviating from the manufacturing line A and / or the processing line 5, preferably in a substantially perpendicular transverse direction and preferably at a distance from the first longitudinal cutter (process unit). By a deviation direction is meant a direction substantially different from the main direction of the manufacturing and / or processing line, such as a transverse direction, wherein the second winder is at an optional angle with respect to the main direction of the manufacturing and / or processing line. The angle is preferably 90 °, but it can also be e.g. 30 ° or about 45 °. The angle is selected based on the process sequence and area.

In the embodiment of Figure 1, the manufacturing and / or processing line and the longitudinal cutter substantially parallel to the main direction of the manufacturing and / or processing line and the second longitudinal cutter diverging from the main direction of the manufacturing and / or processing line preferably form an "L-shape". Similarly, in the embodiment of Figure 2, the manufacturing and / or processing line and the first and second longitudinal cutter disposed at a mutually spaced distance from the principal direction of the manufacturing and / or processing line preferably form a "F-shape".

The winders 11, 21 comprise unwinding stations in which the machine reel 3 is unrolled, leading the opened web W 'to a subwarp cut into a winder and a customer reel 100 to be rolled. The storage and / or transfer rails 7, 7 ', 8 preferably arranged in connection with the process units 10 and 20 serve as such import station. Of these, the storage and / or transfer rails 7 7 are arranged in connection with the first process unit 10 on line A parallel to the machine 40. also serve as storage or retrieval positions for the winding shafts 2 and / or machine reels 3. Also, rails 7 'transverse to the direction of line A are arranged in connection with the process unit 10, the operation of which corresponds to rails 7. In addition, storage and / or transfer rails 8 parallel to the second longitudinal cutter 21 are arranged in connection with the second process unit 20. , which also serve as storage or retrieval positions for the reeling shafts 2 and / or machine rolls 3. The transfer rails 7 'and 8 may be continuous as shown in Fig. 2, or they may have a break point (gap), as in Fig. 1, into or through which the transfer carriage, for example, can be moved. Further, the arrangement preferably comprises at least one additional rail 9 (Fig. 1 only) in the form of a rail which serves as a storage station for the winding shafts 2 and / or the machine reels 3. This is located, for example, in the machine direction between the process units 10 and 20.

15

Of course, the individual machine roller support pairs 13 shown in Figure 2 can be used in place of the rails and can be positioned at an arbitrary angle with respect to the machine direction and thereby contribute to the advantage of space utilization. These support pairs 13 thus function as storage rails 7, 7 '8 or additional storage 9 and form storage locations for machine rolls 3 and / or winding shafts 2. A full machine reel 3 or several empty reel shafts 2 can be placed in each storage location. Of course, in this specification, when referring to the storage, transfer, handling, etc. of machine reels and / or reel shafts, there are also 25 so-called reel rollers.

Preferably, the processing arrangement includes a control system not shown herein. It comprises a recording section for storing each position of the winding axis 2 and the machine roll 3 and its data. Further, the control system preferably comprises a recording unit for retrieving and / or importing machine rolls and / or reel shafts for each process unit and for storing information related to the web of machine rolls, allowing proper and / or appropriate machine rolls as well as correct the scroll axis at the right place just when you want it to happen. The position of the roller importing station 3 and roller pickup station 5 of the winder 11 and 21 is thus stored in the storage portion of the control system, whereby the transfer means are able to fetch a full / new roll and retrieve an empty roller from the winder. An embodiment of the transfer means, also shown in Figures 1 and 2, is shown below.

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In the embodiment shown in Figures 1 and 2, the conveying means comprise a crane arrangement 30, 31, 32 for moving the machine reels 3 and / or the winding shafts 2 between the treatment line retractor 5 and the process units 10 and 20. The crane organization has a specific domain in which it can work. The crane arrangement is preferably an automatic crane capable of operating automatically under the control of a program and / or external commands stored in its control system. The automatic crane comprises a control system 50 which controls its operation. The automatic crane is comprised of a fiber rail machine sleeper (machine direction) rails 31 and a support beam 32 disposed thereon and substantially transverse to the beam 20. The beam 32 is movably supported on rails 31 to pass through the fiber rail above the machine and other process units. The layout of the present invention is reasonably narrow in the transverse direction. This feature allows the crane arrangement to be formed advantageously without the expensive machine hall extension, without the need for the beam 32 to be made particularly long or 25 otherwise custom-made. The crane control system is also arranged to control the movement of the beam in the machine direction. A lifting device is arranged in connection with the beam 32 so that it is movable along the beam also controlled by the control system. The lifting device further comprises means for rotating the lifting device horizontally with respect to the beam, which allows the machine roll 30 and / or the winding shaft to be transported, picked up and released at a freely selectable angle with respect to the machine direction. The angle position of the hoist 9 is also controlled by another control system. The lifting device further comprises gripping means by which it can engage the winding shaft (not shown).

The fiber web production and processing line shown in Fig. 1 operates in normal operation 5 such that the fiber web machine 40 produces web W from continuous operation which is rolled into machine reel by reel 5. At the same time, longitudinal cutters 10 and 11 and 21 W 'as partial webs and by rolling the sub-webs into customer rolls 100 in a manner known per se. These processes are not completely synchronized, so that the machine reel handling arrangement according to the invention provides machine reel and / or reel shaft movement in the most efficient and flexible manner possible. This means that the arrangement also provides for rapid adaptation to changing web production capacities W, where the capacity of the winder may be different, for example, that the capacity of the winder 11 is greater than the second winder 21. For example, the first winder 11 may 80-55 percent and another winder 45-20 percent. In addition, the second winder 21 can serve as an auxiliary / replacement for situations where the winder 11 has insufficient capacity or is out of service. The capacities of the winders can, of course, be arranged essentially the same.

Advantageously, the control room 42 can be located in the area between process units in the embodiment shown in Figure 1, whereby a manning advantage is achieved when either the same or 50% added manning can drive both winders. Also in the embodiment of Fig. 2, a control room can be located in the vicinity of the process units so that each winder can be driven from there. When the machine roll 3 is complete, the transfer means, preferably the crane system 30, 31, 32, can immediately retrieve the machine roll 3 directly to the winder if the crane lift control system 50 is aware that this can or must be done. If this is not the case, the crane system takes the machine reel to one of the intended transfer rails 7, 7 '8 (or support pair 13 shown in Figure 2) to wait for either winder 3 to know whether or not the machine reel 3 is to be received.

Particularly in a situation where neither of the winders 11, 21 is able to receive the finished machine reel as it is completed, the au-10 tomato crane transfers the finished machine reels 3 directly to a suitable transfer and / or storage rail or auxiliary storage reels 9 or move the crane out of the domain so that the fiber web W manufacturing process itself is not disrupted and the winding can continue normally.

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It should be noted that only a preferred embodiment of the invention is described above. Thus, it is clear that the invention is not limited thereto, but can be applied in many ways within the scope defined by the appended claims. For example, a crane arrangement may be replaced, according to prior art, typically by rails, assisted and supported by machine members provided therein. Longer distances, and especially transverse to the center line of the paper machine, are typically made by means of transport trolleys which are arranged along the rails of the data center floor.

The features disclosed in various embodiments may also be used within the scope of the present invention in conjunction with other embodiments, and / or combinations of features other than those disclosed, if desired and technically possible.

Claims (8)

A fabrication and / or processing line for a fiber web comprising a processing arrangement (1) for machine rolls (3) and / or rolling shafts (2), said manufacturing and / or processing line for a fiber web comprising at least one winding wheelchair (5) and two process units (10 and 20), consisting of a length cutter (11 and 21) and a winding unit (12 and 22) for realizing the fiber web (W) manufacturing and / or processing process, and means for displacement of the machine rolls 10 (3) and / or the rolling shafts (2) into the process units, characterized in that a first longitudinal cutter (11) belonging to the first processing unit (10) is arranged substantially in the production and / or processing line of the fiber web. direction (A) or the first longitudinal cutter (11) is arranged in a direction (B) deviating from direction (A) substantially from the manufacturing and / or processing line, and The second longitudinal cutter (21) belonging to the second process unit (20) is arranged in the direction (A) deviating from the direction (A) of the manufacturing and / or processing line. 2. Production and / or processing line according to claim 1, characterized in that the first and second longitudinal cutters (11, 21) are arranged in a direction different from one another in the direction of a different production and / or processing line. 3. Production and / or processing line according to claim 1 or 2, characterized in that, in connection with the longitudinal cutter (11) of the first processing unit (10), the at least at least the displacement (A) of the fiber web producing and / or processing line is arranged. and / or storage rails (7) and / or storage locations for machine rolls (3) and / or roller shafts. 30 14 4. Production and / or processing line according to any of the preceding patent claims 1-3, characterized in that, in connection with the first longitudinal cutter (11), the direction (A) of the fiber web of the fiber web and / or processing line is arranged transversely. arranged (B) displacement and / or storage rails (70 and / or storage locations for machine rolls (3) and / or rolling shafts (2)). 5. Production and / or treatment line according to any of the preceding patent claims 1-4, characterized in that in the direction of the second longitudinal cutter (21), displacement and / or storage rails (8) and / or storage locations for machine rolls (3) and / or roller shafts (2). 6. Production and / or treatment line according to any of the preceding claims 1-5, characterized in that support pairs (13) are arranged in connection with the first longitudinal cutter (11) and / or the second longitudinal cutter (12). storing and / or displacing the machine rollers (3) and / or rolling shafts (2). Manufacturing and / or processing line according to any of the preceding claims 1-6, characterized in that the means for displacing the machine rollers (3) and / or the rolling shafts (2) have a lifting ring arrangement (30, 31,32) provided with a control system. 8. Production and / or processing line according to any of the preceding claims 1-7, characterized in that the production and / or processing line (1) is arranged to establish between the first processing unit (10) and the second processing unit (20) differing in production and / or processing capacities for the fiber web (W).