FI111880B - Method and apparatus for monitoring and recording the properties and / or environmental conditions of various components of a paper / board or pulp or finishing machine and changes therein - Google Patents

Description

111880

Method and apparatus for monitoring and recording the properties and / or environmental conditions of various components of a paper / board or pulp or finishing machine and changes therein.

The present invention relates to a method and apparatus for monitoring and recording the properties of various components of a paper / board or pulp or finishing machine, and / or environmental conditions and changes therein, and for transmitting this information to a paper / board or pulping or finishing machine control unit. and / or a separate data processing system.

It should be noted that the control unit here refers to a control unit of any hierarchical level of a paper / board or pulp or finishing machine, i.e. it may be, for example, a central control unit of a machine or a control unit of a decentralized automation system of a machine.

Paper / board or pulp or finishing machines have a wide variety of components that need to be replaced and serviced for example due to wear and damage. Because of this, it is necessary to use temporary components instead of the actual components, to remove the component from the machine: '. '. during maintenance or replacement of the component in question; j *; la. Often features of temporary, serviced, or new components that: '* *; affect the machine setting values and do not match the original component characteristics. Such components include, for example, rolls of the aforementioned machine 25. For example, when the roll surface is too uneven, the roll is usually replaced with a spare roll, which does not match: the original roll completely, such as weight, diaper diameter, * * surface and deflection.

* * * · 30 It is known that the features of a new or serviced component. ! ·. is supplied to the machine control unit so that the machine control values can be adjusted to the component in question if necessary. Nowadays, this is done by hand, which is cumbersome. It has also been found that manual feed errors occur, 2 111880 which in the worst case lead to breakage of that component or other component of the machine or to a change in the quality of the paper / board or pulp or finishing machine due to incorrect adjustment value.

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In addition, component properties such as roll diameter and other dimensions are handwritten on the component surface, for example, on a chalk or on a separate pad affixed to the component surface, whereby component properties may be lost during storage or transport of the component. In this case, the properties of that component must be measured or redefined.

Further, the component may, for example, be subject to severe acceleration and collision during transport. The component is also often exposed to changes in environmental conditions such as temperature and humidity during storage. For example, the surface properties of rolls, such as polyurethane, change when exposed to temperature changes. Very often, these changes are only detected as unfavorable changes in the quality of the end product, such as in paper machines, changes in the quality of the paper. It is almost impossible to observe and record changes in the properties of the various components ·: ··: 20, as well as the environmental conditions and changes therein, component by component, for example during production run, storage or transport.

It is an object of the present invention to provide a method and apparatus for eliminating or substantially reducing the aforementioned drawbacks.

To achieve these objects, the method of the invention is essentially characterized by providing the component with an accompanying electrically, magnetically or optically writable and readable memory unit in which. . ·. storing at least the properties of the component affecting the adjustment values of the paper / board or pulp or finishing machine during manufacture or maintenance of that component before being exported to a paper / board / pulping or finishing machine for export or storage for later use; and that communication means are provided for transferring the information stored in the memory unit to the control unit of the paper / board or pulp or post-processing machine and / or to a separate data processing system.

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The device according to the invention is essentially characterized in that the component is provided with an accompanying electrically, magnetically or optically writable and readable memory unit which can store at least the properties of the component affecting the adjustment values of the paper / board or pulp or finishing machine. or in connection with maintenance before the component is installed for installation on a paper / board or pulp or finishing machine or stored for later use, and communication means are provided for transferring data stored in the memory unit to the paper / board or pulp or finishing machine control unit or a separate data processing system.

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

In the following, the invention will be described with reference to the accompanying drawings, in which: 1 · '' / · The diagram schematically shows a paper machine roll having a readable and v: writable memory unit.

• * ·; 25

Figure 2 schematically shows a roll in a paper machine having a write-readable and readable memory unit.

Figure 1 schematically illustrates a paper machine roll 1 and the basic principles for tracking and recording the properties A of roll 1, changes therein, and environmental conditions and changes therein. The roller 1 · ·: * ·, · is, for example, a calender roller whose jacket 5 is coated with a polymer. The roller · · 1, preferably on its axis, is provided with a write and read memory unit 2, 4111880 storing the roller 1 features A that affect the adjustment values of the papermaking machine 20. Such properties A of roll 1 are, for example, its diameter, weight, deflection of shell 5, composition of surface material of shell 5, surface roughness, Hours of roll 5 and operations such as grinding performed on roll 1.

Information about the features A of the roll 1 is stored in the memory unit 2, for example by means of a separate data processing system 4 such as a PC, from which this information about the features A of the roll 1 is transmitted by the communication means 3a to the memory unit 2. by transmitting data on the properties A of roll 1 by means of communication means 3b to a separate data processing system 4.

The sensors 6 are, for example, piezoelectric force sensors arranged in connection with the coating of the sheath 5 of the roll 1, which measure the nip force applied to the sheath 5 of the roll 1 by the paper machine 1 and the counter roll. 1 (not shown). Sensor 7 is a temperature sensor and sensor 8 is an acceleration sensor.

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The sensors 6, 7, 8 and any other sensors detecting the properties A and the environmental conditions of the roll 1 monitor changes therein. For example, when the change occurs at ambient temperature while roller 1 is stored, v: temperature sensor 7 detects a change stored in memory unit 2 associated with temperature sensor 7 * * * v: 25 Similarly, when moving roller 1 from service station 20 to paper machine 20, acceleration sensor 8> · ·;.; : possible displacement collisions that may adversely affect the operating characteristics of roller 1. The collision observation is also recorded in acceleration; * to the memory unit 2 communicating with the sensor 8.

»T ·:: 30 • * ·:. *. In general, between component manufacture or maintenance and installation on a paper / board or pulp; *. · Component unit A is stored on the memory unit 2, as well as any changes in component properties, environmental conditions and environmental conditions. changes B.

When the roller 1 is mounted on the paper machine 20, communication means 9a, 9b are arranged between the memory unit 2 arranged on the roller 1 and the control unit 10 arranged on the paper machine 20 (Fig. 2). By means of these, the aforementioned information stored in the memory unit 2 is transmitted to the control unit 10 where it can be read and processed. If necessary, the data can be transferred from the control unit 10 to the memory unit 2. The data can also be read and processed in a similar manner by means of a separate data processing system 4.

Preferably, the control unit 10 and the separate data processing system 4 are also connected to each other continuously or temporarily by means of communication means 11a, 11b. The above information is transmitted by the communication means 11a from the data processing system 4 to the control unit 10 and the data transmission means 11b from the control unit 10 to the data processing system 4.

Thus, for example, the control unit 10 is certainly provided with the correct information about the properties A of the roll 1 and does not have to be entered manually as before. In addition, ·: ··: 20 this enables the possible * · ·:: memory information B stored in the memory unit 2 to detect or deduce the condition of the roller 1.

«<I * * ♦» * · :: Preferably, the component also has sensors that detect operating conditions, v: Thus, on the rolls 1 according to the embodiment shown, these sensors are nip force sensors 6, e.g. 2, whereby the changes detected by the power sensors 6 in the nip force B are stored in the memory unit 2. Other operating conditions can be detected by a corresponding sensor. For example, it is useful to observe the running temperature.

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Particularly under operating conditions, the characteristics of the roller 1 (or other component) and its environmental conditions often change, whereby the related information B is also stored on the memory unit 2, whereby its memory capacity may not be sufficient to store all the information B. It is advantageous "Event History" for a specific time. The memory unit 2 then preferably has a certain amount of data stored at predetermined intervals from each of the sensors 6, 7, 8, forming a substantially continuous "event history" corresponding to a specific time of each of the sensors 6, 7, 8 5. While storing data in memory unit 2, the oldest data stored in memory unit 2 is periodically deleted.

It is clear that the above arrangement does not only apply to the roll of the papermaking machine 10 but can also be applied to various other components of the paper / board or pulp or finishing machine, such as bearings, scrapers, coating station devices, etc. sensors of the execution example.

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Claims (9)

1. Process for checking and recording the characteristics of a paper / board or cellulose or finishing machine (20) of different components (1) and in these resulting changes and / or environmental conditions and in these changes and transmission of this data to a control unit (10) for the paper / cardboard or cellulose or finishing machine (20) and / or a separate data processing system (4), characterized in that an accompanying electric means is provided in the component (1). magnetization or optical writing and readable memory unit (2), which stores at least the characteristics (A) of components (A) acting on the control values of the paper / cardboard or cellulose or finishing machine (20) in connection with the manufacture and service of the product in question component (1) before component (1) is inserted for mounting in the paper / cardboard or cellulose or finishing machine (20) or stored for later use, and providing data transfer means (9b, 3b) for transferring data stored in the memory unit (2) to the paper / cardboard or cellulose or post-processing machine (20) controller (10) and / or separate data transfer ring system (4). 1 '»· · 20 • · 2. A method according to claim 1, characterized in that between control functions. The unit (10) and the separate data processing system (4) provide data, * I · *. transfer means (11a, 11b) for transferring data from data processing system * V · V to the controller (10) and from the controller (10) to the data processing system (4). * · · * »·; 3. Process according to claim 1 or 2, characterized in that the component (1) at least exhibits the state of the component (1) and / or '· · ···. its environmental conditions observable to the memory unit (2) coupled sensor »M1 (6, 7.8), from which source data (B) into the component (1) and / or in the · ·. *. its changes in environmental conditions are stored in the memory unit »· · (2) in the component (1). 11 111880 Method according to any of claims 1-3, characterized in that the memory unit (2) is continuously stored for a certain time interval corresponding to the amount of at least one observing sensor (6, 7,8) of substantially continuously obtained data (B). . 5 5. Device for checking and recording the characteristics of a paper / board or cellulose or finishing machine (20) of different components (1) and in these resulting changes and / or environmental conditions and in these changes and transmission of these data to a control unit (10) for the paper / cardboard or cellulose or finishing machine (20) and / or a separate data processing system (4), characterized in that an accompanying electrically arranged by magnetization is provided in the component (1) or optical writing and readable memory unit (2), which stores at least the characteristics (A) of the components (A) of the control values of the paper / cardboard or cellulose or finishing machine (20) associated with the manufacture and service of said component (1) before component (1) is inserted for mounting in the paper / cardboard or cellulose or finishing machine (20) or is stored for storage. later use, and providing data transfer means (9b, 3b) for transmitting data stored in the memory unit (2) to the paper / cardboard or cellulose or after *: V processing machine (20) control unit (10) and / or separate data transfer system (4). Device according to claim 5, characterized in that data is arranged between the controller (10) and the separate data processing system (4). - ... transmission means (11a, 11b) for transmitting data from the data processing system (4) to the control unit (10) and from the control unit (10) to the data processing system (4). • · · • »» Device according to claim 5 or 6, characterized in that the component (1) exhibits at least one state (1) of the component (1) and / or * its environmental conditions observing sensor 11 (80) connected to the memory unit (6). , 7, 8), from which source data (B) transmitted in the component (1) and / or in its environmental conditions, changes occur in a memory unit (2) in the component (1). Device according to any one of claims 5 to 7, characterized in that the component (1) is a roller and stored in the accompanying memory unit (2) the control values (A, B) mean at least some of the following: diameter, weight, deflection of the mantle, composition of the surface material, surface roughness, hours of use, service performed. 10 Device according to any of claims 5 - 8, characterized in that the memory unit (2) is continuously stored for a certain time interval corresponding to the amount of at least one observing sensor (6, 7, 8) substantially continuously received data (B). . 15 • · <1 · »·» · • I (• «I • 1 · • ·» · · »1 1 • II • · · · · · · · · · · · 1 · • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·