CN1047125A - Method in the finishing process of a kind of paper or cardboard - Google Patents

Abstract

The method of the finishing of paper or cardboard comprises paper tape (W) is wound up on the winch spool (T).With reel from winder station (R, R) be passed to the debatching bearing (R, R) on.To become idle empty winch spool (T) to be passed to winder station.Utilize transport (50,70) and rail set (22,28,44,60,67) that the reel on the winch spool (T) is passed to the debatching bearing from winder station, and the winch spool (T) of sky is passed to winder station from the debatching bearing.Transport (50,70) and rail set be by sequential automation device control, makes the previous step in the conveying of winch spool (T) or reel (R) carry out next supplying step automatically once finishing.

Description

The present invention relates to a method in the finishing process of paper or board, which involves winding a paper web from a paper machine, coating machine or other similar equipment onto a reel, in which method the entire roll of paper web is wound Transfer from one or more winding stations to one or more unwinding supports and in this method transfer empty bobbins idle on one or more unwinding supports to one or more of the aforementioned on a winding station.

In the case of paper or board finishing plants, such as calenders, paper cutters and unwinders and rewinders in paper mills, a number of factors must be taken into account. One of the most important points to look at is the main production line. The various devices in the main production line should be arranged such that they can operate smoothly without unnecessary settling or lifting action of the paper roll. The movement of the main product in the factory is also very important. The lifting capacity and its optimal utilization also concern the layout of the various finishing equipment. Combination of operators of different equipment should also be considered.

In order that the lifting height of the crane is not too high, for example, the superfinishing calender can be arranged on two floors, which is well known in the prior art. It is also known in the prior art to place the unwinding support at the same height of the machine.

The following will serve as a starting point for the present invention to describe the turnaround cycle of a typical prior art finishing plant, as well as the roll feeder and winding drum. When the superfine calenders are arranged one by one, several such superfine calenders can be arranged side by side. A standard arrangement is to place the unwinding support of the fine calender on the At the same height of the machine, place the recoilers one by one at the height of the base. Full rolls of paper tape are transferred by means of an overhead crane in the paper machine shop to the paper cutters, which are lined up with the superfinishing calenders. In a similar manner, the empty reels are transferred from the unwinding support of the paper cutter to the support above the rewinding station of the superfinishing calender by means of an overhead crane.

As mentioned above, it is known in the prior art to utilize several overhead cranes to carry cycles of full paper tape rolls and empty reels. This increases the number of overhead cranes required and may interfere with the smooth running of production, especially if the overhead cranes are occupied by other work, such as maintenance work. The demand for manpower is also quite high, and the operation work using the overhead crane cannot be automated. There are also certain safety issues in the work of overhead cranes.

The object of the present invention is to provide a new method which avoids a substantial part of the aforementioned disadvantages.

A specific object of the present invention is to provide a method for transferring full rolls of paper tape and the circulation of empty reels associated therewith, with which subsequent various devices can be carried out automatically after the preceding process has been completed on the process, so that the operator does not need to take care of the start of each process. A further object of this purpose is to be able to reduce the number of operating personnel and generally to transfer workers working on other equipment when special circumstances require and additional operating workers are required in case of failure.

A particular object of the invention is to provide a method with which even the number of overhead cranes can be reduced.

Another object of the present invention is to provide such a method, which can automatically operate the different processes under smooth and faster conditions, so that certain finishing equipment and finishing methods can be used with higher production capacity of the paper machine.

From the viewpoint of achieving the above-mentioned purpose and the purpose mentioned below, the main features of the present invention are: in this method, the paper tape roll wound on the winding drum is transported to the unwinding support by the winding station, and conveying the empty reel from the unwinding support to the winding station is accomplished by means of a conveying device and a track device permanently placed between the above-mentioned support and the station, characterized in that: Both the conveying device and the track device are controlled by means of a sequential automation device; therefore, after the conveying step of the previous reel or tape roll is completed, the next conveying step is automatically carried out without human initiation.

The invention will be described in detail below with reference to exemplary embodiments of the invention shown in the drawings, but the invention is not restricted to the details of the described embodiments.

Figure 1 shows the starting end of a finishing process arranged at the end of a paper machine of a paper machine line from the last drying cylinder of the paper machine to the rewinding station of the superfinishing calender.

Figure 2 shows the end of the finishing process from the rewinding station of the superfinishing calender to the paper cutter.

In the accompanying drawings, due to the limitation of the size of the drawings, a finishing process used to represent the present invention needs to be placed in two drawings, so Figure 1 shows the starting end of the finishing process and Figure 2 shows the end of the process Terminal until paper cutter. In FIGS. 1 and 2 , the vertical plane A-A represents mutually coincident planes in both figures.

In FIGS. 1 and 2 , the machine plane is denoted by reference numeral 100 , the base plane is denoted by reference numeral 200 , and the height difference between them is H. On the left side of FIG. 1 is shown the final drying cylinder 10 and the upper conductor 11 in the paper machine. The web W _o passes from the final drying drum 10 through a mechanical calender 12 and guide rolls 13 to a winder 20, for example a pope-type\\reel-type winder (pope-type\\reel- up) or similar devices, the reeled paper web W _o is wound in a known manner on an empty reel _T3 , which has already been connected with all the reels in the winding station R _K1 The winding cylinder 21 of the above-mentioned winder is connected. The full roll _R1 supported by the ends of the reel travels along a pair of rails 22 to which are connected the necessary deceleration and parking stations.

This pair of rails 22 is in the same production line with the paper machine, and what is connected with them before reaching the unwinding support R is a winding bracket 23, which can support a whole roll on the supporting device of the bracket 23 Paper tape roll R ₂ . The carriage 23 can be transported on its wheels along rails 24 transversely to another production line for removal or loading of a roll of paper tape for placement on the production line. The paper roll _R2 can be transferred by means of a mechanism 25 onto the support device 26 into the unwinding support R _A1 of the superfinishing calender 30, and the paper roll placed in the above position is indicated by the reference _R3 .

After the tape roll R ₃ has been completely unwound and guided, an empty reel in the unwind support 26 has become idle and is transferred to position T ₁ by means of the lever mechanism 27, while rolling by its two ends. The partially supported reel is transferred from position _T1 to another pair of rails 28 inclined downward at an angle α. The pair of tracks 28 is provided with a deceleration and parking station 29 which ensures that the reels T roll at a sufficiently low speed, while maintaining their alignment, all the way to the position above the winder 20. The waiting station T ₂ . The first empty reel _T5 on the remote parking device 28a is in such a position that the main fork of the winder 20 can remove it from this position and transfer it to the reel with the reel. body 21 connected to the winding position.

In the method described above, a closed cycle of the reel T is provided, the inverse cycle being guided by a control device 90 (shown schematically only). The control unit 90 provides control pulses _P1 ... _PN to the various means for controlling and effecting the circulation of the reel and the delivery of the roll R of tape. In addition, feedback _signals f ₁ . In this way, the various actions controlled by the sequential automation device can be interconnected, so that each individual action completed manually and by means of an overhead crane in the prior art can now automatically perform the following action after the previous action is completed. In this case, the operator no longer needs to attend to the starting and stopping of various actions.

The paper web W is unwound from the paper web roll _R3 and sent to a superfinishing calender 30, associated with which is a paper calender which is supported on a base plane 200 and in which Inside the calender are placed a number of soft and hard rolls 32 pressed one above the other in a known manner. On the front side of the calender 30 are provided a plurality of storage spaces mounted on the frame 34 for accommodating spare rolls 32V. The superfinishing calender 30 has its own crane 35, eg for roll changes and other sporadic maintenance work. The frame of the superfinishing calender 30 is indicated by reference numeral 33 . From this calender, the web W ₂ passes over guide rollers 36 to the rewinding device _RK2 of the calender.

As shown in Figure 2, the paper web _W2 from the superfinishing calender 30 is wound up in the rewinding device _RK2 to form a paper web roll _R5 wound on the winding drum T, and the paper web roll starts from the position T _5A is transported to the winder 40 by a vertical conveyor 70 . The complete roll of paper tape roll _R5 is conveyed from the winding device 40 to the position _R6 by means of a transfer mechanism 42 and from the position 6 to the reel carriage 43, and the paper tape roll placed on the support device of the carriage The R ₇ is transferred to the wheels of the carriage 43 and sent on the transverse track 44 to another production line. Or on the contrary, by means of the carriage 43, a roll of paper tape is again conveyed to the production line shown in the drawing and along the track 44 to the position _R8 .

From position R ₈ , transport mechanism 45 transports the roll to position R _9A , where the roll is supported by a support 51 of lifting device 50 , which is an integral part of the present invention, the support being at This is done with the support 51 of the lifting device in its lower position 51A. The lifting device 50 includes a pair of supports 51 which are displaced synchronously with each other by means of a known drive mechanism which may include, for example, a chain drive, a hydraulic cylinder, or other equivalent drives. device. The main requirement for the operation of the lifting device 50 is to transport the roll of paper tape from the position R 9A on the base plane 200 to the position R _9Y on the machine plane ₁₀₀ .

In Fig. 2, the paper tape roll R placed on the support member 51 in the upper position is further passed through a door 61 that can rotate around the hinge shaft 62 and is in its lower position, and is transported to the track placed on the vertical beam 65. 60 , connected with the pair of rails 60 is a winding drum bracket 63 , and the paper tape roll R ₁₀ can be shifted onto the bracket 63 . The paper tape roll _R11 resting on the carriage 63 can be transferred to the wheels of the carriage 63 and transported to another production line on the track 64, or equally a paper tape roll can be transported to the carriage, conveying to the line shown in the attached picture. After the carriage 63, the rolls of paper tape supported on the rails 60 and placed on the respective parking stations are designated _R12 . The last roll of the tape roll R ₁₂ is delivered to the unwind position R of the paper cutter 80 by a delivery mechanism.

When the tape roll R ₁₃ placed at the unwinding position _RA2 has been withdrawn, an empty reel T becomes idle and is transferred to a position above the unwinding position _RA2 by means of a lifting mechanism 66. An empty reel _T4 is shown in this position on the support means for the track 68 . The pair of tracks 68 are inclined downwards at an angle α, and associated therewith are a number of parking and deceleration stations 67, which ensure the undisturbed transfer of empty reels _T4 from position _T4 to position _T5 . Usually, the angle α is in the range of α=1.0...1.5°. Associated with the lower end of the track 68 is a vertical transfer device 70 comprising a pair of holders 71, at their upper positions 71y, supporting empty reels _T5y , by means of which the vertical transfer device 70 The empty reel T is conveyed to the lower position T _5A , where the holder 71 is in position 71A above the rewinding station _RK2 of the superfinishing calender. The empty reel T is again conveyed from the position _T5A to the support of the rewinding station _RK2 , and a new roll _R5 of paper tape is wound on said reel T.

The roll cycles R ₅ . . . R ₁₃ wound onto the reel T can be carried out automatically using the control pulse P of the control device 90 without the need for an overhead crane or a corresponding crane. Furthermore, an essential feature of the invention is that the circulation of the reel T, which includes the transfer of an empty reel from the unwinding position R _A2 to the rewinding position R _K2 , is also carried out under automatic control using the control device 90 Instead of overhead crane transport and/or manual handling.

Controlling and monitoring the method of the invention is an essential feature of the working process of the control device 90, which knows the state of the finishing process at each specific time thanks to the monitoring signals _f1 ... _fK . The monitoring signals f ₁ ... f _K are received from various limit switches, photoelectric elements, angle detectors or their similar devices, and by means of these signals, the operating conditions and various conveying conditions of the paper roll and winding drum can be monitored. The working phase of the device is monitored. The control system 90 gives control pulses P ₁ . . . P _N according to the control data sent to the control system 90 . An appropriate amount of "information" can be programmed into the system 90 to optimize the working process of the finishing line under different circumstances. The system 90 may be controlled by a process control computer, a microprocessor, or by programmable logic, and by various detectors and control devices and various actuators, which are known in themselves.

The invention can be applied to a wide variety of finishing lines. In the exemplary embodiment shown in FIGS. 1 and 2, instead of a paper machine, a coating machine is used, for example, and a soft calender or the like can be placed in place of the superfinishing calender.

The invention is applicable to all such combinations of finishing plants in which it is necessary to transport a roll of paper tape from a winding position to an unwinding position and to return an empty reel from the unwinding position to the winding position. It is also an essential feature of the present invention that the various conveying processes are carried out under sequential automatic control without the use of overhead cranes or their equivalents, which also have other services. In this way, disturbance-free and smooth operation is achieved with respect to the feeding of the tape roll and the circulation of the reel.

The claims of the invention will be given below, whereby variations of various details from those in the exemplary embodiment described above may be suggested within the scope of the inventive concept defined by said claims.

Claims (9)

1. A finishing method for paper or board comprising the step of winding a paper web (W) from a paper machine, coating machine or the like onto a reel (T), in which method In the method, the entire roll of paper tape is conveyed from one or more winding stations (R _k1 , R _K2 ) to one or more unwinding supports (R _A1 , R _A2 ), in which one or more Empty reels (T) that have become idle on a plurality of unwinding supports (R _A1 , R _A2 ) are retransmitted to the above-mentioned one or more winding stations (R _k1 , R _k2 ), characterized in In this method, the tape roll wound on the winding drum (T) is transported from the winding station (R _k1 , R _k2 ) to the unwinding support (R _A1 , R _A2 ) and the empty roll The reel (T) is transported from the unwinding support ( _RA1 , R _A2 ) to the winding station (R _k1 , R _k2 ) by means of the conveying device (50, 70) and permanently placed on the above-mentioned supports and the rail device (22, 28, 44, 60, 67) between the stations, the conveying device (50, 70) and the rail device are all controlled by the sequence automation device, so that the winding After the previous step of transport of the tube (T) or paper strip (R), the next transport step is carried out automatically without the need for a human to initiate it. 2. A method as claimed in claim 1, characterized in that in the method the entire roll of paper tape is transferred from the base plane (200) to the machine plane (100) by a lifting step which is performed by a The hoist (50) is complete. 3. A method as _claimed in claim 1 or 2 _{, characterized in that in the method empty reels (T 1 ,} T ₄ ) is transported to the winding station (R _K1 ) or to the winding station ( R _K2 ). 4. A method according to claim 3, characterized in that said pair of rails (28, 68) for an empty reel (T) are arranged in a direction towards their conveying direction when working as conveying means. The downward slope of a small angle (α), preferably in the range α = 1°...2°, is thus operated by gravity. 5. A method as claimed in claim 3 or 4, characterized in that the empty reel (T) is fed from the The lower position (T _5y ) of a pair of rails (68) is conveyed to _a lower position (T _5A ) from which empty bobbins (T) are conveyed to the winding on the support of the device (20, 40), and a paper tape roll ( _R5 ) is wound on the above-mentioned winding drum. 6. A method as claimed in any one of claims 1 to 5, characterized in that the method is used in a finishing process in which the paper web from a paper machine (10, 11) or from a coating machine (W ₆ ) is sent to a winder (20), and the tape roll wound on the winder is conveyed to an unwinding support ( R _A1 ), from which unwind support (R _A1 ) the empty reel (T ₁ ) is placed along a pair above said rails (22) at an inclined angle towards the winder (R _K1 ) The track (28) of (α) transports to the position ( _T3 ) from which the empty reel (T) is transported by means of the transport member of the winder (20) to the winding position. 7. A method according to claim 6, characterized in that said unwinding support (R _A1 ) is the unwinding support of a superfinishing calender (30), and said superfinishing calender (30) 30) The rewinding station ( _RK2 ) is arranged on the base plane (200), from which the entire roll of paper tape (R) is transported to the machine plane (100) by means of a lifting device (50). 8. A method as claimed in any one of claims 1 to 7, characterized in that after the rewinding station ( _RK2 ) of a superfinishing calender or similar device, the entire roll of paper strip (R) Transported under automatic control along rails (44, 60) or similar devices to an unwinding support (R _A2 ) from which the empty reel (T) which has become idle It is conveyed to the top of the winding station (R _K1 ) along the paired rails ( 68 ) which are inclined downward and are connected with parking stations ( 67 ). 9. The method according to claim 8, characterized in that: in the method, the whole roll of paper strip (R) is _firstly Transported to the first track (44), on which the entire roll of paper tape (R _9A ) is lifted from the base level (200) to the machine level (100) by means of the lifting device (50), from the support of the lifting device The entire roll of paper tape roll (R _9y ) is transported along the second rail (60) to an unwinding support (R _A2 ), which is preferably the unwinding support of the paper cutter (80), The empty reel (T) that has become idle is lifted from the unwinding support (R _A2 ) by means of a transfer mechanism (66) to the support of the paired rails (68), the support is arranged above and in the form of An angle (α) is inclined downwards and along this track the empty reel (T) is rolled over the above-mentioned rewinding station (R _K2 ), from which the empty reel (T _5y ) Transfer to the lower position ₍ T _5A ) by means of the support device ( 71 ) of a vertical transfer device ( 70 ), from which the empty reel (T) is conveyed to the rewinding station (R _K2 ) on the supporter and winding, the above-mentioned steps are repeated as a closed cycle under the condition of sequential automatic control, without the need for overhead crane transportation, and no manual transportation or control work.

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