CA2015025A1 - Method and system in the finishing of paper or board - Google Patents
Method and system in the finishing of paper or boardInfo
- Publication number
- CA2015025A1 CA2015025A1 CA 2015025 CA2015025A CA2015025A1 CA 2015025 A1 CA2015025 A1 CA 2015025A1 CA 2015025 CA2015025 CA 2015025 CA 2015025 A CA2015025 A CA 2015025A CA 2015025 A1 CA2015025 A1 CA 2015025A1
- Authority
- CA
- Canada
- Prior art keywords
- reeling
- rail arrangement
- subsequent
- drums
- unwind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 22
- 230000005484 gravity Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000007730 finishing process Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 3
- 230000000979 retarding effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/417—Handling or changing web rolls
- B65H2301/4171—Handling web roll
- B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
Landscapes
- Replacement Of Web Rolls (AREA)
- Paper (AREA)
Abstract
ABSTRACT
In the finishing of paper or board, web from a web-producing machine is reeled onto respective reeling drums.
Loaded reels are then transferred from the reeling position to an unwind position by apparatus including a first rail arrangement;
and the resulting empty reeling drums are then transferred from the unwind position back to the reeling position by apparatus including a second rail arrangement that is generally parallel to the first rail arrangement. The foregoing steps are automatically controlled in a manner such that, upon completion of a preceding step in the transfer of a reeling drum, the next transfer step occurs automatically, without manual starting.
In the finishing of paper or board, web from a web-producing machine is reeled onto respective reeling drums.
Loaded reels are then transferred from the reeling position to an unwind position by apparatus including a first rail arrangement;
and the resulting empty reeling drums are then transferred from the unwind position back to the reeling position by apparatus including a second rail arrangement that is generally parallel to the first rail arrangement. The foregoing steps are automatically controlled in a manner such that, upon completion of a preceding step in the transfer of a reeling drum, the next transfer step occurs automatically, without manual starting.
Description
2 ~ 2 5 METHOD AND SYSTEM IN THE FINISHING OF PAPER OR BOARD
BACKGROUND AND SUMMARY OF THE INVENTION
The present invention relates to a method and system in the finishing of paper or board, wherein reeling of a web arriving from a paper machine, a coating machine, or an equivalent, onto reeling drums is carried out; and, more particularly, to such a method in which full reels are transf~rred from a reeling station to an unwind stand, and in which empty reeling drums that become free in the unwind stand are transferred back to the reeling station.
In a paper mill the location of paper or board finishing equipment, such as calenders, slitters, and unwinders and rewinders, must be considered from a number of factors. One of the most important factors is the principal line of production. The various apparatuses must be placed so that, in the principal line of production, it is possible to proceed smoothly, without unnecessary displacing or lifting of reels.
The running of the principal product in the plant is also important. The lifting capacity and its optimized utilization are also related to the locations of the various finishing apparatuses. Consideration should also be given to joint utilization of operating personnel for different apparatuses.
It is known in the prior art to place, e.g., supercalenders in two stories, in order that the lifting height of the crane should not become unduly high. It is also known in the prior art to place an unwind stand at the machine level.
In the following, constituting a point of departure for the present invention, a typical prior art installation of 2 ~ 5 finishing equipment as well as an arrangement for transferring paper reels and circulation of reeling drums will be described.
When supercalenders placed one opposite the other are used, of which supercalenders there may be several units placed side by side, a typical arrangement is such that the unwind stands of the supercalender are placed at the machine level, and the rewinders are placed at the basement level one opposite the other. The complete reels are transferred by means of the overhead cranes in the paper machine hall to slitters, which are placed in the same line with the supercalenders. In a corresponding way, from the unwind stand of the slitter, the empty reeling drums are also transferred by means of an overhead crane onto supports placed above the rewind station of the supercalender.
As is apparent from the above, in a way known in the prior art, overhead cranes are used both for the transfer of full reels and for the circulation of empty reeling drums. This increases the number of necessary overhead cranes and may cause disturbance in smooth running of the production especially when overhead cranes are loaded by other work, e.g. servicing work.
The requirement of manpower is also quite high, and transfers taking place by means of overhead cranes cannot be automated.
The operation of overhead cranes also involves certain safety risks.
20151D2~
An object of the present invention is to provide a novel method and system of the subject type, by means of which a major part of the drawbacks discussed above can be avoided.
It is a particular object of the invention to provide such a method and system for the transfer of full reels and for the related circulation of empty reeling drums by whose means the subsequent operations of the various apparatuses can be arranged to occur automatically upon completion of the preceding operation; in this way operating personnel are freed from the task of manually starting the operations. A related objective is to even lower the number of operating personnel; and the extra operators needed in special situations or in the case of disturbance are, as a rule, available at other machines.
A further, particular object of the invention is to provide a method and system of the subject type by means of which it is even possible to reduce the number of overhead cranes.
Another object of the invention is to provide a method and system of the subject type wherein the different operations can be automated so as to take place in a smoother way and more rapidly, whereby the same finishing equipment and finishing process can be used in a paper machine of a higher production capacity.
In view of achieving the objectives stated above and those that will become apparent below, the invention is mainly characterized in that (i), in the method and system, the reels wound on reeling drums are transferred from the reeling station 2 ~ 2 5 to the unwind stand, as well as empty reeling drums being transferred from the unwind stand to the reeling station by making use of transfer means and rail arrangements arranged permanently between such stands and stations, and that (ii) such transfer means and rail arrangements are controlled by means of sequence automation so that, upon completion of a preceding step in the transfer of a reeling drum or reel, the next transfer step takes place automatically, without manual starting.
~01~25 BRIEF DESCRIPTION OF THE DRAWING
The invention will now be described in detail with reference to an exemplary and preferred embodiment of the invention illustrated in the accompanying drawing, in which:
FIG. 1 shows the initial end of a finishing process fitted at the end of a paper machine and in the same production line as with the paper machine, specifically from the last drying cylinder in the paper machine to the rewinding section of a supercalender; and FIG. 2 shows the final end of a finishing process from the rewinding station of the supercalender to a slitter.
2 ~ 2 ~
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In the accompanying drawing, a finishing process in accordance with the invention is collectively illustrated in two separate figures, with FIG. 1 showing an initial end of the finishing process and FIG. 2 showing a final end up to a slitter.
In FIGS. 1 and 2, the illustrated vertical planes A-A coincide with each other.
In FIGS. 1 and 2, the machine level is denoted with the reference numeral 100 and the basement level with the reference numeral 200, and the height difference between them, with the letter H. At the left side in FIG. 1, the last drying cylinder 10 and the upper wire 11 in the paper machine are shown. From the last drying cylinder 10 a web WO is pressed via the machine calender 12 and the guide roll 13 to the reel-up 20, which is, e.g., a pope-type reel-up or equivalent. The web WO is wound, in a way in itself known, onto an empty reeling drum T3, which has been brought into connection with a reeling cylinder 21 of the reel-up 20, in the reeling station RK1. The full reels R1 move forward (i.e. to the right), supported by the end portions of the reeling drums, along pairs of rails 22, in accordance with which there is a necessary number of retarding and stopping stations.
The pairs of rails 22 are in the same production line with the paper machine, and in connection with them, before the unwind stand RA1, there is a reel carriage 23, on whose support a full reel R2 can be supported. The carriage 23 can be transferred in the transverse direction on its wheels along rails 2 ~ 2 ~
24 onto another production line so as to take out or fetch a reel onto the line. The reel R2 can be transferred by means of a mechanism 25 onto supports 26 into the unwind stand RA1 of the supercalender 30, the reel being placed in the position denoted with the reference R3.
After the reel R3 has been unwound and guided completely, in the unwind stand 26 an empty reeling drum becomes free and is transferred by means of a lever mechanism 27 to the position Tl; from position T1 reeling drums, rolling while supported on their end portions, are transferred further on pairs of rails 28 inclined downwards to the left at an angle a. The pairs of rails 28 are provided with retarding and stopping stations 29, which ensure that the reeling drums T roll at a sufficiently low speed while retaining their alignment to the waiting station T2 placed above the reel-up 20. The first empty reeling drum T3 placed on a remote-controlled stopping device 28a is in the position from which the primary forks of the reel-up 20 fetch it and transfer it to the reeling position placed in connection with the reeling cylinder 21.
In the manner described above, a closed circulation of reeling drums T is provided, which is arranged as guided by a control unit 90 (shown schematically only). The control unit 90 gives the control impulses Pl to PN to the various devices which control and accomplish the circulation of the reeling drums and the transfer of the reels R. Moreover, at the control unit 90, feedback signals fl to fK arrive, for example, from various 201~2~
detectors (not shown) placed in connection with the rails 22 and 28 as well as with the transfer devices 23, 25 and 27. Thus, being controlled automatically in sequence, the various operations can be interlinked so that the individual operations, which were manual and carried out by means of an overhead crane in the prior art, occur automatically upon completion of the preceding operation. In such a case, operating personnel are freed from the task of starting and stopping the various operations.
From the reel R3, the web Wl is unwound and passed to the supercalender 30, in connection with which there is a calender stack supported on the basement level 200 and in which, in a way in itself known, there are soft and hard rolls 32 placed one above the other in the calender stack. At the front side of the calender 30, mounted on a frame 34, there are storage spaces for reserve rolls 32v. The supercalender 30 has a crane 3S of its own, e.g., for roll replacement and other minor servicing operations. The frame of the supercalender 30 is denoted with the reference numeral 33. From the supercalender, the web W2 is passed around guide rolls 36 to the rewinding unit RK2 of the supercalender.
As is shown in FIG. 2, the web W2 arriving from the supercalender 30 is wound in the rewinding unit RK2 into a reel R5 on a reeling drum T, which is passed to the reel-up 40 from a vertical conveyor 70 from the position T5A. A full reel R5 is transferred from the reeling unit 40 by means of a transfer ~:l5~3 mechanism 42 to the position R6 and from there further onto a reeling-drum carriage 43; on such carriage the reel R7, which has been placed on support of the carriage, can be transferred on the wheels of the carriage 43 and on transverse rails 44 to another processing line. Alternatively, by means of the carriage 43, a reel can be brought into the processing line shown in the figures and be transferred along the rails 44 into the position R8.
From the position R8, a transfer mechanism 45 transfers the reel to the position RgA, wherein it is supported by the support members of a lift device 50 important to the invention when support members 51 of the lift device are in their lower positions 51A. The lift device 50 includes a pair of support members 51, which are displaced synchronously with each other by means of a drive mechanism in itself known, which may comprise, e.g., a chain transmission, a hydraulic cylinder, or some other, equivalent motor. It is important for the operation of the lift device 50 that it transfers the reels from the position RgA from the basement level 200 onto the machine level 100 into the position Rgy.
In FIG. 2, the reels Rgy resting on support members 51y in the upper position are transferred further through a gate 61, which is pivotable around articulation shafts 62 when the gate is in its lower position, onto rails 60, which rest on vertical beams 65. In connection with the pairs of rails 60, there is a reeling-drum carriage 63, onto which the reel R1o can be shifted.
The reel R11 resting on the carriage 63 can be transferred on the 2 ~
carriage 63 wheels and the rails 64 onto another line, or correspondingly a reel can be brought on the carriage onto the processing line shown in the FIGUR~S. After the carriage 63, reels supported on the rails 60 and placed in various stopping stations are denoted with the reference R12. The last one of the reels R12 is transferred by means of a transfer mechanism to the unwind position RA2 of a slitter 80.
When a reel R13 placed in the unwind position RA2 is emptied, an empty reeling drum T becomes free and is transferred by means of a lifting mechanism 66 onto the support of a pair of rails 68 placed above the unwind position RA2, in which position an empty reeling drum T4 is shown. The pair of rails 68 is inclined downwards to the left at an angle a, and in connection with it there are stopping and retarding stations 67, which ensure undisturbed transfer of empty reeling drums from the position T4 to the position T5. The angle a is, as a rule, within the range of a = 1.0 to 1.5. In connection with the lower ends of the rails 68, there is a vertical conveyor 70, which includes pairs of supports 71, which, in their upper positions 71yl support the empty reeling drum T5y; such empty reels being transferred by means of the vertical conveyor 70 to the lower position T5A (the supports 71 being at that time in the position 71A), to above the rewinding station RK2 of the supercalender. From the position T5A, the empty reeling drum T
is transferred onto the supports of the rewinding station RK2, and a new reel R5 is wound onto the reeling drum T.
2 ~ 2 5 Beneficially, the circulation R5 to R13 of th~ reels wound onto the reeling drums T can be arranged to take place under automatic control by means of control impulses P of the control unit 90 (FIG. 1) without using an overhead crane or corresponding cranes. Moreover, it is an important .eature of the invention that the circulation of the reeling drums T, which includes the transfer of empty reeling drums from the unwind position RA2 to the rewind position RK2, also take place under automatic control by the control unit 90 so as to avoid transfers by means of overhead cranes and/or without manual operations.
It is an important feature of the operation of the control system 90 (FIG. 1), which controls and monitors the method of the invention, that, owing to the monitoring signals f to fK, the system is aware of the state of the finishing process at each particular time. The signals fl to fK are received from various limit switches, photocells, angle detectors, or equivalents (not shown), by means of which the running of the reels and of the reeling drums and the operation stages of the various transfer devices are monitored. The system 90 gives the control impulses Pl to PN on the basis of the control data fed into the system 90. A suitable amount of "intelligence" can be programmed into the system 90, so that the operation of the finishing lines in different situations can be optimized. The system 90 can be accomplished by means of a process computer, 2 ~ 2 ~
microprocessors, or by means of programmable logic devices, as well as by means of various detectors and control devices and actuators in themselves known.
The invention can be applied in highly differsnt finishing lines. Instead of a paper machine in the exemplary embodiment shown in FIGS. 1 and 2 there may be, for example, a coating machine, and in the position of the supercalender there may be a softcalender or equivalent.
The invention is suitable for use in all such combinations of finishing equipment in which transfer of reels from a winding position to an unwinding position and return transfer of empty reeling drums from the unwinding position to the winding position are required. It is also an important feature of the invention that the various transfers take place as controlled in an automatic sequence without the necessity of employing an overhead crane or equivalent cranes, which also have other duties. In this way, an undisturbed, smoothly operating transfer of reels and circulation of reeling drums are accomplished.
It should be understood that the preferred embodiments and examples described are for illustrative purposes only and are not to be construed as limiting the scope of the present invention which is properly delineated only in the appended claims.
BACKGROUND AND SUMMARY OF THE INVENTION
The present invention relates to a method and system in the finishing of paper or board, wherein reeling of a web arriving from a paper machine, a coating machine, or an equivalent, onto reeling drums is carried out; and, more particularly, to such a method in which full reels are transf~rred from a reeling station to an unwind stand, and in which empty reeling drums that become free in the unwind stand are transferred back to the reeling station.
In a paper mill the location of paper or board finishing equipment, such as calenders, slitters, and unwinders and rewinders, must be considered from a number of factors. One of the most important factors is the principal line of production. The various apparatuses must be placed so that, in the principal line of production, it is possible to proceed smoothly, without unnecessary displacing or lifting of reels.
The running of the principal product in the plant is also important. The lifting capacity and its optimized utilization are also related to the locations of the various finishing apparatuses. Consideration should also be given to joint utilization of operating personnel for different apparatuses.
It is known in the prior art to place, e.g., supercalenders in two stories, in order that the lifting height of the crane should not become unduly high. It is also known in the prior art to place an unwind stand at the machine level.
In the following, constituting a point of departure for the present invention, a typical prior art installation of 2 ~ 5 finishing equipment as well as an arrangement for transferring paper reels and circulation of reeling drums will be described.
When supercalenders placed one opposite the other are used, of which supercalenders there may be several units placed side by side, a typical arrangement is such that the unwind stands of the supercalender are placed at the machine level, and the rewinders are placed at the basement level one opposite the other. The complete reels are transferred by means of the overhead cranes in the paper machine hall to slitters, which are placed in the same line with the supercalenders. In a corresponding way, from the unwind stand of the slitter, the empty reeling drums are also transferred by means of an overhead crane onto supports placed above the rewind station of the supercalender.
As is apparent from the above, in a way known in the prior art, overhead cranes are used both for the transfer of full reels and for the circulation of empty reeling drums. This increases the number of necessary overhead cranes and may cause disturbance in smooth running of the production especially when overhead cranes are loaded by other work, e.g. servicing work.
The requirement of manpower is also quite high, and transfers taking place by means of overhead cranes cannot be automated.
The operation of overhead cranes also involves certain safety risks.
20151D2~
An object of the present invention is to provide a novel method and system of the subject type, by means of which a major part of the drawbacks discussed above can be avoided.
It is a particular object of the invention to provide such a method and system for the transfer of full reels and for the related circulation of empty reeling drums by whose means the subsequent operations of the various apparatuses can be arranged to occur automatically upon completion of the preceding operation; in this way operating personnel are freed from the task of manually starting the operations. A related objective is to even lower the number of operating personnel; and the extra operators needed in special situations or in the case of disturbance are, as a rule, available at other machines.
A further, particular object of the invention is to provide a method and system of the subject type by means of which it is even possible to reduce the number of overhead cranes.
Another object of the invention is to provide a method and system of the subject type wherein the different operations can be automated so as to take place in a smoother way and more rapidly, whereby the same finishing equipment and finishing process can be used in a paper machine of a higher production capacity.
In view of achieving the objectives stated above and those that will become apparent below, the invention is mainly characterized in that (i), in the method and system, the reels wound on reeling drums are transferred from the reeling station 2 ~ 2 5 to the unwind stand, as well as empty reeling drums being transferred from the unwind stand to the reeling station by making use of transfer means and rail arrangements arranged permanently between such stands and stations, and that (ii) such transfer means and rail arrangements are controlled by means of sequence automation so that, upon completion of a preceding step in the transfer of a reeling drum or reel, the next transfer step takes place automatically, without manual starting.
~01~25 BRIEF DESCRIPTION OF THE DRAWING
The invention will now be described in detail with reference to an exemplary and preferred embodiment of the invention illustrated in the accompanying drawing, in which:
FIG. 1 shows the initial end of a finishing process fitted at the end of a paper machine and in the same production line as with the paper machine, specifically from the last drying cylinder in the paper machine to the rewinding section of a supercalender; and FIG. 2 shows the final end of a finishing process from the rewinding station of the supercalender to a slitter.
2 ~ 2 ~
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
In the accompanying drawing, a finishing process in accordance with the invention is collectively illustrated in two separate figures, with FIG. 1 showing an initial end of the finishing process and FIG. 2 showing a final end up to a slitter.
In FIGS. 1 and 2, the illustrated vertical planes A-A coincide with each other.
In FIGS. 1 and 2, the machine level is denoted with the reference numeral 100 and the basement level with the reference numeral 200, and the height difference between them, with the letter H. At the left side in FIG. 1, the last drying cylinder 10 and the upper wire 11 in the paper machine are shown. From the last drying cylinder 10 a web WO is pressed via the machine calender 12 and the guide roll 13 to the reel-up 20, which is, e.g., a pope-type reel-up or equivalent. The web WO is wound, in a way in itself known, onto an empty reeling drum T3, which has been brought into connection with a reeling cylinder 21 of the reel-up 20, in the reeling station RK1. The full reels R1 move forward (i.e. to the right), supported by the end portions of the reeling drums, along pairs of rails 22, in accordance with which there is a necessary number of retarding and stopping stations.
The pairs of rails 22 are in the same production line with the paper machine, and in connection with them, before the unwind stand RA1, there is a reel carriage 23, on whose support a full reel R2 can be supported. The carriage 23 can be transferred in the transverse direction on its wheels along rails 2 ~ 2 ~
24 onto another production line so as to take out or fetch a reel onto the line. The reel R2 can be transferred by means of a mechanism 25 onto supports 26 into the unwind stand RA1 of the supercalender 30, the reel being placed in the position denoted with the reference R3.
After the reel R3 has been unwound and guided completely, in the unwind stand 26 an empty reeling drum becomes free and is transferred by means of a lever mechanism 27 to the position Tl; from position T1 reeling drums, rolling while supported on their end portions, are transferred further on pairs of rails 28 inclined downwards to the left at an angle a. The pairs of rails 28 are provided with retarding and stopping stations 29, which ensure that the reeling drums T roll at a sufficiently low speed while retaining their alignment to the waiting station T2 placed above the reel-up 20. The first empty reeling drum T3 placed on a remote-controlled stopping device 28a is in the position from which the primary forks of the reel-up 20 fetch it and transfer it to the reeling position placed in connection with the reeling cylinder 21.
In the manner described above, a closed circulation of reeling drums T is provided, which is arranged as guided by a control unit 90 (shown schematically only). The control unit 90 gives the control impulses Pl to PN to the various devices which control and accomplish the circulation of the reeling drums and the transfer of the reels R. Moreover, at the control unit 90, feedback signals fl to fK arrive, for example, from various 201~2~
detectors (not shown) placed in connection with the rails 22 and 28 as well as with the transfer devices 23, 25 and 27. Thus, being controlled automatically in sequence, the various operations can be interlinked so that the individual operations, which were manual and carried out by means of an overhead crane in the prior art, occur automatically upon completion of the preceding operation. In such a case, operating personnel are freed from the task of starting and stopping the various operations.
From the reel R3, the web Wl is unwound and passed to the supercalender 30, in connection with which there is a calender stack supported on the basement level 200 and in which, in a way in itself known, there are soft and hard rolls 32 placed one above the other in the calender stack. At the front side of the calender 30, mounted on a frame 34, there are storage spaces for reserve rolls 32v. The supercalender 30 has a crane 3S of its own, e.g., for roll replacement and other minor servicing operations. The frame of the supercalender 30 is denoted with the reference numeral 33. From the supercalender, the web W2 is passed around guide rolls 36 to the rewinding unit RK2 of the supercalender.
As is shown in FIG. 2, the web W2 arriving from the supercalender 30 is wound in the rewinding unit RK2 into a reel R5 on a reeling drum T, which is passed to the reel-up 40 from a vertical conveyor 70 from the position T5A. A full reel R5 is transferred from the reeling unit 40 by means of a transfer ~:l5~3 mechanism 42 to the position R6 and from there further onto a reeling-drum carriage 43; on such carriage the reel R7, which has been placed on support of the carriage, can be transferred on the wheels of the carriage 43 and on transverse rails 44 to another processing line. Alternatively, by means of the carriage 43, a reel can be brought into the processing line shown in the figures and be transferred along the rails 44 into the position R8.
From the position R8, a transfer mechanism 45 transfers the reel to the position RgA, wherein it is supported by the support members of a lift device 50 important to the invention when support members 51 of the lift device are in their lower positions 51A. The lift device 50 includes a pair of support members 51, which are displaced synchronously with each other by means of a drive mechanism in itself known, which may comprise, e.g., a chain transmission, a hydraulic cylinder, or some other, equivalent motor. It is important for the operation of the lift device 50 that it transfers the reels from the position RgA from the basement level 200 onto the machine level 100 into the position Rgy.
In FIG. 2, the reels Rgy resting on support members 51y in the upper position are transferred further through a gate 61, which is pivotable around articulation shafts 62 when the gate is in its lower position, onto rails 60, which rest on vertical beams 65. In connection with the pairs of rails 60, there is a reeling-drum carriage 63, onto which the reel R1o can be shifted.
The reel R11 resting on the carriage 63 can be transferred on the 2 ~
carriage 63 wheels and the rails 64 onto another line, or correspondingly a reel can be brought on the carriage onto the processing line shown in the FIGUR~S. After the carriage 63, reels supported on the rails 60 and placed in various stopping stations are denoted with the reference R12. The last one of the reels R12 is transferred by means of a transfer mechanism to the unwind position RA2 of a slitter 80.
When a reel R13 placed in the unwind position RA2 is emptied, an empty reeling drum T becomes free and is transferred by means of a lifting mechanism 66 onto the support of a pair of rails 68 placed above the unwind position RA2, in which position an empty reeling drum T4 is shown. The pair of rails 68 is inclined downwards to the left at an angle a, and in connection with it there are stopping and retarding stations 67, which ensure undisturbed transfer of empty reeling drums from the position T4 to the position T5. The angle a is, as a rule, within the range of a = 1.0 to 1.5. In connection with the lower ends of the rails 68, there is a vertical conveyor 70, which includes pairs of supports 71, which, in their upper positions 71yl support the empty reeling drum T5y; such empty reels being transferred by means of the vertical conveyor 70 to the lower position T5A (the supports 71 being at that time in the position 71A), to above the rewinding station RK2 of the supercalender. From the position T5A, the empty reeling drum T
is transferred onto the supports of the rewinding station RK2, and a new reel R5 is wound onto the reeling drum T.
2 ~ 2 5 Beneficially, the circulation R5 to R13 of th~ reels wound onto the reeling drums T can be arranged to take place under automatic control by means of control impulses P of the control unit 90 (FIG. 1) without using an overhead crane or corresponding cranes. Moreover, it is an important .eature of the invention that the circulation of the reeling drums T, which includes the transfer of empty reeling drums from the unwind position RA2 to the rewind position RK2, also take place under automatic control by the control unit 90 so as to avoid transfers by means of overhead cranes and/or without manual operations.
It is an important feature of the operation of the control system 90 (FIG. 1), which controls and monitors the method of the invention, that, owing to the monitoring signals f to fK, the system is aware of the state of the finishing process at each particular time. The signals fl to fK are received from various limit switches, photocells, angle detectors, or equivalents (not shown), by means of which the running of the reels and of the reeling drums and the operation stages of the various transfer devices are monitored. The system 90 gives the control impulses Pl to PN on the basis of the control data fed into the system 90. A suitable amount of "intelligence" can be programmed into the system 90, so that the operation of the finishing lines in different situations can be optimized. The system 90 can be accomplished by means of a process computer, 2 ~ 2 ~
microprocessors, or by means of programmable logic devices, as well as by means of various detectors and control devices and actuators in themselves known.
The invention can be applied in highly differsnt finishing lines. Instead of a paper machine in the exemplary embodiment shown in FIGS. 1 and 2 there may be, for example, a coating machine, and in the position of the supercalender there may be a softcalender or equivalent.
The invention is suitable for use in all such combinations of finishing equipment in which transfer of reels from a winding position to an unwinding position and return transfer of empty reeling drums from the unwinding position to the winding position are required. It is also an important feature of the invention that the various transfers take place as controlled in an automatic sequence without the necessity of employing an overhead crane or equivalent cranes, which also have other duties. In this way, an undisturbed, smoothly operating transfer of reels and circulation of reeling drums are accomplished.
It should be understood that the preferred embodiments and examples described are for illustrative purposes only and are not to be construed as limiting the scope of the present invention which is properly delineated only in the appended claims.
Claims (20)
1. A method in the finishing of paper or board, comprising the steps of:
reeling a web from a web-producing machine onto respective reeling drums at a reeling position;
transferring the thus-loaded reels from the reeling position to an unwind position by means including a first rail arrangement;
transferring empty reeling drums from the unwind position to the reeling position by means including a second rail arrangement that is generally parallel to the first rail arrangement; and carrying out the foregoing steps automatically in a manner such that, upon completion of a preceding step in the transfer of a reeling drum, the next transfer step occurs automatically, without manual starting.
reeling a web from a web-producing machine onto respective reeling drums at a reeling position;
transferring the thus-loaded reels from the reeling position to an unwind position by means including a first rail arrangement;
transferring empty reeling drums from the unwind position to the reeling position by means including a second rail arrangement that is generally parallel to the first rail arrangement; and carrying out the foregoing steps automatically in a manner such that, upon completion of a preceding step in the transfer of a reeling drum, the next transfer step occurs automatically, without manual starting.
2. The method as claimed in claim 1, wherein the second rail arrangement for transferring empty reeling drums from the unwind position back to the reeling position comprises a pair of rails placed above the first rail arrangement.
3. The method as claimed in claim 2, wherein the second rail arrangement is inclined downwards from an end adjacent to the unwind position to an end adjacent the reeling position by an extent sufficient to permit empty reeling drums to travel on the second rail arrangement by the force of gravity.
4. A method as claimed in claim 1, wherein the step of transferring empty feeling drums comprises transferring empty reeling drums from the second rail arrangement downwardly to the reeling position by means comprising transfer members of a reel-up .
5. The method as claimed in claim 1, further comprising the steps of:
at a subsequent reeling position, reeling the web onto respective reeling drums;
transferring the thus-loaded reels from the subsequent reeling position to a subsequent unwind position by means including a subsequent first rail arrangement;
transferring empty reeling drums from the subsequent unwind position to the subsequent reeling position by means of a subsequent second rail arrangement that is generally parallel to the subsequent first rail arrangement; and carrying out the foregoing steps automatically in a manner such that, upon completion of a preceding step in the transfer of a reeling drum, the next transfer step takes place automatically, without manual starting.
at a subsequent reeling position, reeling the web onto respective reeling drums;
transferring the thus-loaded reels from the subsequent reeling position to a subsequent unwind position by means including a subsequent first rail arrangement;
transferring empty reeling drums from the subsequent unwind position to the subsequent reeling position by means of a subsequent second rail arrangement that is generally parallel to the subsequent first rail arrangement; and carrying out the foregoing steps automatically in a manner such that, upon completion of a preceding step in the transfer of a reeling drum, the next transfer step takes place automatically, without manual starting.
6. The method as claimed in claim 5, further comprising the step of lifting loaded rolls from a lower level at which the subsequent reeling position is located to a level at which the subsequent first rail arrangement is positioned.
7. The method as claimed in claim 5, wherein the step of transferring empty reeling drums comprises transferring empty reeling drums from the second rail arrangement downwardly to the reeling position by means of one of the group consisting of a vertical conveyor and the primary forks of a pope-type reel-up.
8. The method as claimed in claim 5, wherein the first-mentioned unwind position is the unwind position of a supercalender located at a machine level and a rewind position of the supercalender is located at a basement level.
9. The method as claimed in claim 8, wherein, after the rewind station of the supercalender, loaded reels are transferred under automatic control along a third rail arrangement at the basement level, and then upwardly to the subsequent second rail arrangement for transfer to the subsequent unwind position.
10. The method as claimed in claim 9, wherein the subsequent unwind position comprises an unwind position of a slitter.
11. A system in the finishing of paper or board, comprising:
(a) means for reeling a web from a web-producing machine onto respective reeling drums at a reeling position;
(b) means for transferring the thus-loaded reels from the reeling position to an unwind position by means including a first rail arrangement;
(c) means for transferring empty reeling drums from the unwind position to the reeling position by means including a second rail arrangement that is generally parallel to the first rail arrangement; and (d) means for controlling the foregoing means (a)-(c) automatically in a manner such that, upon completion of a preceding stage in the transfer of a reeling drum, the next transfer stage occurs automatically, without manual starting.
(a) means for reeling a web from a web-producing machine onto respective reeling drums at a reeling position;
(b) means for transferring the thus-loaded reels from the reeling position to an unwind position by means including a first rail arrangement;
(c) means for transferring empty reeling drums from the unwind position to the reeling position by means including a second rail arrangement that is generally parallel to the first rail arrangement; and (d) means for controlling the foregoing means (a)-(c) automatically in a manner such that, upon completion of a preceding stage in the transfer of a reeling drum, the next transfer stage occurs automatically, without manual starting.
12. The system as claimed in claim 11, wherein the second rail arrangement for transferring empty reeling drums from the unwind position back to the reeling position comprises a pair of rails placed above the first rail arrangement.
13. The system as claimed in claim 12, wherein the second rail arrangement is inclined downwards from an end adjacent to the unwind position to an end adjacent the reeling position by an extent sufficient to permit empty reeling drums to travel on the second rail arrangement by the force of gravity.
14. A system as claimed in claim 11, wherein the stage for transferring empty reeling drums comprises means for transferring empty reeling drums from the second rail arrangement downwardly to the reeling position by means comprising transfer members of a reel-up.
15. The method as claimed in claim 11, further comprising:
(e) means, at a subsequent reeling position, for reeling the web onto respective reeling drums;
(f) means for transferring the thus-loaded reels from the subsequent reeling position to a subsequent unwind position by means including a subsequent first rail arrangement;
(g) means for transferring empty reeling drums from the subsequent unwind position to the subsequent reeling position by means of a subsequent second rail arrangement that is generally parallel to the subsequent first rail arrangement; and (h) means for controlling the foregoing means (e)-(g) automatically in a manner such that, upon completion of a preceding stage in the transfer of a reeling drum, the next transfer stage takes place automatically, without manual starting.
(e) means, at a subsequent reeling position, for reeling the web onto respective reeling drums;
(f) means for transferring the thus-loaded reels from the subsequent reeling position to a subsequent unwind position by means including a subsequent first rail arrangement;
(g) means for transferring empty reeling drums from the subsequent unwind position to the subsequent reeling position by means of a subsequent second rail arrangement that is generally parallel to the subsequent first rail arrangement; and (h) means for controlling the foregoing means (e)-(g) automatically in a manner such that, upon completion of a preceding stage in the transfer of a reeling drum, the next transfer stage takes place automatically, without manual starting.
16. The system as claimed in claim 15, further comprising means for lifting loaded rolls from a lower level at which the subsequent reeling position is located to a level at which the subsequent first rail arrangement is positioned.
17. The system as claimed in claim 15, wherein the means (g) for transferring empty reeling drums comprises means for transferring empty reeling drums from the second rail arrangement downwardly to the reeling position by means of one of the group consisting of a vertical conveyor and the primary forks of a pope-type reel-up.
18. The system as claimed in claim 15, wherein the first-mentioned unwind position is the unwind position of a supercalender located at a machine level and a rewind position of the supercalender is located at a basement level.
19. The system as claimed in claim 18, further comprising means, after the rewind station of the supercalender, for transferring loaded reels under automatic control along a third rail arrangement at the basement level, and then upwardly to the subsequent second rail arrangement for transfer to the subsequent unwind position.
20. The system as claimed in claim 19, wherein the subsequent unwind position comprises an unwind position of a slitter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI891940A FI891940A (en) | 1989-04-24 | 1989-04-24 | FOERFARANDE VID EFTERBEHANDLING AV PAPPER ELLER KARTONG. |
| FI891940 | 1989-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2015025A1 true CA2015025A1 (en) | 1990-10-24 |
Family
ID=8528293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2015025 Abandoned CA2015025A1 (en) | 1989-04-24 | 1990-04-20 | Method and system in the finishing of paper or board |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPH02293489A (en) |
| CN (1) | CN1047125A (en) |
| AU (1) | AU5313090A (en) |
| CA (1) | CA2015025A1 (en) |
| DE (1) | DE4009669A1 (en) |
| FI (1) | FI891940A (en) |
| FR (1) | FR2646182A1 (en) |
| GB (1) | GB2230761A (en) |
| SE (1) | SE9001268L (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI107554B (en) * | 2000-02-25 | 2001-08-31 | Metso Paper Inc | Method for making a paper or board web and a paper or board machine |
| FI121463B (en) * | 2007-10-15 | 2010-11-30 | Metso Paper Inc | Line for making and / or treating a fiber web and process in connection with a line for making and / or treating a fiber web |
| FI124956B (en) * | 2011-01-31 | 2015-04-15 | Valmet Technologies Inc | Rolling machine and method of rolling a fiber web |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3586253A (en) * | 1969-02-06 | 1971-06-22 | Beloit Corp | Reel loader for paper machines or the like |
-
1989
- 1989-04-24 FI FI891940A patent/FI891940A/en not_active IP Right Cessation
-
1990
- 1990-03-26 DE DE19904009669 patent/DE4009669A1/en not_active Withdrawn
- 1990-03-27 GB GB9006812A patent/GB2230761A/en not_active Withdrawn
- 1990-04-06 SE SE9001268A patent/SE9001268L/en not_active Application Discontinuation
- 1990-04-10 AU AU53130/90A patent/AU5313090A/en not_active Abandoned
- 1990-04-18 JP JP10054190A patent/JPH02293489A/en active Pending
- 1990-04-20 CA CA 2015025 patent/CA2015025A1/en not_active Abandoned
- 1990-04-23 FR FR9005128A patent/FR2646182A1/en not_active Withdrawn
- 1990-04-23 CN CN 90102433 patent/CN1047125A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FI891940A0 (en) | 1989-04-24 |
| SE9001268L (en) | 1990-10-25 |
| JPH02293489A (en) | 1990-12-04 |
| SE9001268D0 (en) | 1990-04-06 |
| DE4009669A1 (en) | 1990-10-25 |
| GB2230761A (en) | 1990-10-31 |
| CN1047125A (en) | 1990-11-21 |
| GB9006812D0 (en) | 1990-05-23 |
| AU5313090A (en) | 1990-10-25 |
| FI891940A (en) | 1990-10-25 |
| FR2646182A1 (en) | 1990-10-26 |
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| Date | Code | Title | Description |
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