EP3194656B1 - Sealing-strip holder and use thereof - Google Patents

Sealing-strip holder and use thereof Download PDF

Info

Publication number
EP3194656B1
EP3194656B1 EP15781853.5A EP15781853A EP3194656B1 EP 3194656 B1 EP3194656 B1 EP 3194656B1 EP 15781853 A EP15781853 A EP 15781853A EP 3194656 B1 EP3194656 B1 EP 3194656B1
Authority
EP
European Patent Office
Prior art keywords
sealing ledge
holder
sealing strip
sealing
feed
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.)
Active
Application number
EP15781853.5A
Other languages
German (de)
French (fr)
Other versions
EP3194656A1 (en
Inventor
Rüdiger Keinberger
Peter Eckerstorfer
Markus Ecker
Anton Luger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roechling Industrial Oepping & Co Kg GmbH
Original Assignee
Roechling Industrial Oepping & Co Kg GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Roechling Industrial Oepping & Co Kg GmbH filed Critical Roechling Industrial Oepping & Co Kg GmbH
Priority to PL15781853T priority Critical patent/PL3194656T3/en
Publication of EP3194656A1 publication Critical patent/EP3194656A1/en
Application granted granted Critical
Publication of EP3194656B1 publication Critical patent/EP3194656B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/10—Suction rolls, e.g. couch rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D21F1/483—Drainage foils and bars
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • D21F1/50—Suction boxes with rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0272—Wet presses in combination with suction or blowing devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0281—Wet presses in combination with a dryer roll
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/10—Wire-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0009—Paper-making control systems
    • D21G9/0036—Paper-making control systems controlling the press or drying section

Definitions

  • the invention relates to sealing strip holders for sealing strips of suction rolls and their use in suction rolls.
  • a suction roll which is used for dewatering web material, for example in paper machines, has a roll shell provided with openings and at least one suction box inside.
  • the suction box is fixedly mounted inside the suction roll, with the roll shell provided with holes rotating around the suction box.
  • it has sealing strips on the side, which seal the interior of the suction box against the remaining volume of the suction roll, specifically in the longitudinal direction of the suction roll.
  • the suction box In the circumferential direction of the suction roll, the suction box is delimited at both ends by format limiters and sealed against the roll shell.
  • a particular challenge in the construction and operation of suction rolls is the supply of lubricating water to reduce heat generation and wear on the sealing strip.
  • the friction surface of the sealing strip is reduced by the openings of the lubricating water supply
  • the openings of the lubricating water supply are wearing out noticeably
  • the sealing strip which is designed as a wear part, is complex to manufacture and therefore more expensive
  • the holder itself is also more complicated, and fifthly, it is movable in the sealing strip holder
  • Sealing strips as they are customary according to the prior art, the transition from the sealing strip holder to the sealing strip is difficult, which means that the assembly and sealing of the lubricating water system is complex
  • the lubrication groove or the openings in the sealing strip can be closed by impurities, fibers or chemicals , which would cause a local increase in wear and temperature, which in turn can lead to damage to the sealing strip or the roller.
  • the object on which the invention is based is to carry out the introduction of the lubricating water in a simple, space-saving and targeted manner. This object is achieved by the features of claim 1 for a sealing strip holder. This results in uses of the sealing strip holder according to claims 14 and 15.
  • the lubricant supply is to be integrated into the sealing strip holder.
  • the lubricating water can be brought in very close to the friction surface, i.e. the surface with which the sealing strip rubs on the roller shell, and the space requirement can be reduced compared to a spray pipe mounted in front of the sealing strip holder.
  • the amount of lubricant can be reduced by the targeted introduction close to the sealing strip, whereby the otherwise enormous water consumption of the sealing strip is advantageously reduced.
  • a device using a sealing strip holder thus consists of a suction roller, inside of which a suction box is attached which is laterally bounded by sealing strips. At least one sealing strip is assigned a lubricating water supply which, viewed in the running direction, introduces lubricating fluid in front of the sealing strip in the direction of the inside of the perforated casing of the suction roll, the lubricating water supply being integrated into the sealing strip holder.
  • Each sealing strip preferably also has an actuator by means of which the contact pressure of the sealing strip on the inner lateral surface of the suction roll can be changed.
  • the second, rear sealing strip viewed in the running direction preferably additionally has a second actuator by means of which the opening angle of the gap between the sealing strip and the suction roll shell can be changed.
  • the second, rear sealing strip seen in the running direction preferably has an electroacoustic transducer, which is preferably integrated into the holder of the sealing strip and is thus protected from moisture.
  • Temperature sensors are preferably attached in the sealing strips, which, in addition to temperature measurement, preferably also serve to measure wear. Provision is preferably made for the data from the sensors to be processed in a miniserver and the actuators to be controlled by the miniserver.
  • a miniserver is a miniaturized data processing system with input and output modules and options for digital communication, in particular for wireless communication with input and output devices and other data processing systems in a network.
  • a flow sensor is preferably present in the lubricant feed or in the line leading to the lubricant feed, which flow sensor is in data connection with the miniserver in order to monitor or measure the amount of spray water used in real time.
  • the flow rate is preferably regulated or controlled by the mini server, for example by adjusting at least one valve.
  • the temperature of the sealing strip is preferably measured and the use of lubricant or the amount of lubricant is controlled or regulated as a function of the measured temperature.
  • the temperature can be measured at one or more points on the sealing strip and the amount of lubricating water introduced over the length of the sealing strip can be uniformly high in every area of the sealing strip. If the temperature of the sealing strip is measured in several areas of the sealing strip, a local temperature profile can also be recorded in the sealing strip.
  • the amount of lubricant introduced can advantageously be controlled or regulated separately in individual areas of the longitudinal course of the sealing strip, so that in the event of local heat generation in the sealing strip, lubricating water is only introduced in the affected area. Since material adhering to the sealing strip is also washed away by the introduction of lubricating water, it is possible to react to temperature increases caused by such impurities in that the adhering material is washed away by increasing the flow of lubricating water.
  • the temperature sensor inside the sealing strip, as shown in the DE 102007027688 A1 known.
  • the distance between the temperature sensors of the DE 102007027688 A1 to the surface in question must be so high that they are still integrated in the material of the sealing strip until the maximum permissible wear is reached.
  • a plurality of temperature sensors can preferably be integrated in the sealing strip, these temperature sensors being inserted or integrated into the sealing strip at different depths.
  • the temperature sensors can also be used for wear monitoring or measurement. This happens because the temperature sensors break as soon as they are no longer protected by the material of the sealing strip and wear out on the suction roll.
  • a plurality of such temperature sensors attached offset in depth are always combined in one sensor unit, wherein a plurality of such sensor units are preferably attached, distributed over the longitudinal direction of the sealing strip.
  • the lubricating water or the lubricant can actually be water or another liquid, in particular other liquids or additives can be added to the water.
  • Fig. 1 the sealing strip according to the invention 1.1, 2.1 is shown with integrated temperature sensors 6.1.
  • several sensor units 6 are integrated in the sealing strip 1.1, 2.1, each sensor unit 6 having four temperature sensors 6.1.
  • the temperature sensors 6.1 With regard to the upper surface, that is to say the friction or friction surface of the sealing strip 1.1, 2.1, the temperature sensors 6.1 have different distances. The distance between two successive temperature sensors 6.1 is 2 mm, for example.
  • the sensor units consist of a circuit board 6.4, temperature sensors 6.1, a microchip 6.2 with an integrated radio module and a power supply using a battery 6.3.
  • a mini server with a radio module is positioned outside the suction roller and receives the data from the sensor units 6 via radio.
  • the miniserver is preferably connected to a network and the data can be visualized via an output device such as a computer, tablet computer, laptop or mobile phone.
  • the sealing strip 1.1, 2.1 has at least one sensor unit 6, preferably the sealing strip 1.1, 2.1 has several sensor units 6 in order to be able to measure the temperature at several points on the sealing strip 1.1, 2.1.
  • a sealing strip system 1 according to the invention is shown, which is preferably used as the first sealing strip system 1 of a suction box 4, viewed in the direction of movement of the roller jacket 3.
  • the sealing strip system 1 consists of a sealing strip 1.1 which is movably received in the groove of the sealing strip holder 1.2.
  • an adjusting hose 1.3 designed as a pressure hose.
  • the sealing strip holder 1.2 In front of the sealing strip 1.1, the sealing strip holder 1.2 is provided with a lubricating water system which has spray nozzles 1.4 via which the lubricating water is introduced through a spray pipe 1.5 preferably integrated in the sealing strip holder 1.2.
  • At least one sensor unit 6 is preferably integrated or inserted into the sealing strip 1.1.
  • the contact pressure with which the sealing strip 1.1 is pressed against the inside of the roll shell 3 can be changed via the pressure in the contact hose 1.3.
  • a sealing strip system 2 according to the invention is shown, which is preferably used as a second sealing strip system 2 of a suction box 4, viewed in the direction of movement of the suction roll.
  • the sealing strip system 2 consists of a sealing strip 2.1 which has a web along the lower front edge which is movably received in the groove of the sealing strip holder 2.2.
  • An adjusting hose 2.3 is located in the groove below the web of the sealing strip 2.1.
  • the sealing strip holder 2.2 is provided with a lubricating water system which has spray nozzles 2.4 via which the lubricating water is introduced through a spray pipe 2.5 which is preferably integrated in the sealing strip holder 2.2.
  • At least one sensor unit 6 is preferably integrated or inserted into the sealing strip 2.1.
  • the contact pressure with which the sealing strip 2.1 is pressed in the front area against the inside of the roll shell 3 can be changed via the pressure in the contact hose 2.3.
  • the sealing strip 2.1 has a curved upper surface, so that the upper surface rests against the roll shell 3 in its front area and in the rear area with the roll shell 3 forms a gradually increasing gap.
  • the width of this gap can be adjusted by a height-adjustable strip 2.7, which can move the rear end of the sealing strip 2.1 closer to the roll shell 3 or away from it.
  • the height-adjustable strip 2.7 is guided along an upwardly sloping groove of a strip 2.6 which can be displaced in the longitudinal direction of the sealing strip 2.1.
  • the displaceable strip 2.6 can be designed as a slide which is displaced in the groove of the sealing strip holder 2.2 by an adjusting spindle driven by the motor.
  • a longitudinal displacement of the displaceable bar 2.6 leads to the height-adjustable bar 2.7 being displaced upwards along the groove. It is also conceivable to make the bar 2.6 stationary and to adjust the height of the height-adjustable bar 2.7 along the groove by longitudinally displacing it. Since there are many possibilities to convert the rotational movement of a stepping motor into a linear movement of an actuator, it should be generally stated that the distance of the rear end of the sealing strip 2.1 to the roll shell 3 can be changed by a motor and can be kept in the respective position.
  • a symbolically represented sound sensor 7 or a pickup is preferably attached, which is used to measure the noise level on or after the sealing strip 2.1.
  • the control method according to the invention provides that the opening angle of the gap between the sealing strip 2.1 and the roll shell 3 is controlled in such a way that the noise level is reduced to a minimum.
  • the sealing strip 1.1 and the front area of the sealing strip 2.1 it is also possible to provide an adjustment mechanism for adjusting the sealing strip 1.1 and the front area of the sealing strip 2.1, as is used in the rear area of the sealing strip 2.1.
  • the contact pressure can be regulated by a controllable holding torque of the motor, or it can be regulated indirectly by a resilient element which is located between the actuating element and the sealing strip.
  • the sealing strip is already in contact with the roll shell, a further adjustment of the actuator via the resilient element can exert an increasing force with increasing deformation of the resilient element, with which the sealing strip is pressed against the roll shell. It is advantageous that the actuator can also be positioned in such a way that there is a narrow gap between the sealing strip and the roll shell.
  • FIG. 4 the structure of a suction box 4 with two sealing strip systems 1, 2 according to the invention is shown schematically.
  • the direction of movement of the roll shell 3 is indicated by an arrow.
  • the front first sealing strip system 1 as seen in the direction of movement is according to FIG Fig. 2 executed
  • the rear second sealing strip system 2 viewed in the direction of movement is according to FIG Fig. 3 executed.
  • the two sealing strip systems 1, 2 form the lateral delimitation of the suction box 4.
  • a pressure sensor 5 for measuring the negative pressure or vacuum is located inside the suction box 4 in the sealed area 4.1.
  • the negative pressure in the suction box 4 can also be determined in or by the vacuum pump, which is used to generate the vacuum in the sealed area 4.1.
  • the first sealing strip system 1 has a temperature sensor system 16 for determining the temperature of the sealing strip 1.1, which preferably takes the form of a plurality of sensor units 6 integrated in the sealing strip 1.1 according to FIG Fig. 1 is executed.
  • the second sealing strip system 2 has a temperature sensor system 26 for determining the temperature of the sealing strip 2.1, which preferably takes the form of a plurality of sensor units 6 according to FIG Fig. 1 is executed.
  • the second sealing strip system 2 also has a sensor for recording noise, which is preferably designed as a sound sensor 7 integrated in the sealing strip holder 2.2.
  • the first sealing strip system 1 has an adjustment mechanism for changing the position of the sealing strip 1.1, which preferably comprises an adjusting hose 1.3.
  • the setting pressure of the sealing strip 1.1 and / or the distance between the sealing strip 1.1 and the roll shell 3 can be controlled and / or regulated via the adjustment mechanism.
  • the first sealing strip system 1 has a lubricating water supply, the amount of lubricating water introduced being controllable and / or regulatable.
  • the lubricating water supply is preferably designed as a spray tube 1.5 integrated in the sealing strip holder 1.2.
  • the second sealing strip system 2 has an adjustment mechanism for changing the position of the front area of the sealing strip 2.1, which preferably comprises an adjusting hose 2.3.
  • the setting pressure of the front area of the sealing strip 2.1 and / or the distance between the front area of the sealing strip 2.1 and the roll shell 3 can be controlled and / or regulated via the adjustment mechanism.
  • the second sealing strip system 2 has a second adjustment mechanism for changing the position of the rear area of the sealing strip 2.1, which preferably comprises a stepper motor.
  • about the second adjustment mechanism is the opening angle between the rear area of the sealing strip 2.1 and the roll shell 3 can be controlled and / or regulated.
  • the second sealing strip system 2 has a lubricating water supply, the amount of lubricating water introduced being controllable and / or regulatable.
  • the lubricating water supply is preferably designed as a spray pipe 2.5 integrated in the sealing strip holder 2.2.
  • the control method according to the invention consists in a first variant in the detection of the negative pressure or vacuum in the suction box 4, the contact pressure or the distance to the roll shell 3 of the first sealing strip 1.1 and the contact pressure or the distance to the roll shell 3 of the front area of the second sealing strip 2.1 are regulated in such a way that the minimum contact pressure or that maximum distance is set which is permissible to maintain the vacuum in the interior of the suction box 4 at the desired level.
  • the contact pressure or the distance can be varied jointly for both sealing strips 1.1, 2.1, for example by applying the same pressure to the pressure hoses 1.3, 2.3.
  • the control method there is preferably also a temperature sensor system 16, 26 for detecting the sealing strip temperature of each sealing strip 1.1, 2.1.
  • the amount of lubricating water used for sealing strip 1.1 is controlled or regulated as a function of the measured values of the temperature sensor system 16, and the amount of lubricating water used for sealing strip 2.1 is controlled or regulated as a function of the measured values of the temperature sensor system 26.
  • the regulation of the amount of lubricant as a function of the temperature of the sealing strip 1.1, 2.1 can also be used or advantageous without the aforementioned regulation of the contact pressure.
  • the second variant of the inventive regulation also measures the noise level after or on the second sealing strip system 2 and, depending on the measured value, the distance between the rear area of the sealing strip 2.1 and the roll shell 3 and thus the opening angle of the gap between the sealing strip 2.1 and Roller shell 3 regulated, so that there is a minimal noise level.
  • This method can also be used advantageously separately from the methods described above, since the noise generation on conventional sealing strips can be up to 110 dBA and can therefore be hazardous to health.
  • a mini server preferably wirelessly, in which the regulation and control rules are stored, which can optionally be changed by a program or a user.
  • the miniserver uses the measured values to determine the correcting variables required to control the actuators.
  • the miniserver is preferably connected to a display and input device, in particular wirelessly, in order to display the operating parameters or to allow manual changes.
  • the intelligent system for controlling all essential parameters within a suction roll which is monitored centrally, preferably by a mini server, and can be changed either by the system or by the user depending on one another, ensures the most energy-efficient and quiet operation possible and enables preventive maintenance.
  • the system is based on components equipped with sensors such as sealing strip, pressure hose, sealing strip holder and spray tube, which preferably provide constant information about the process that cannot be viewed and / or controlled from the outside, preferably via radio / WLAN, and thus provide information about the operating status of the Suction roll.
  • the sealing strip holder 1.2 has a plurality of openings 10, which are present, for example, in the form of bores which are distributed over the longitudinal direction of the sealing strip holder 1.2 and are spaced apart from one another.
  • the bores of the openings 10 run in such a way that an imaginary straight extension of these leads into the corner area between the sealing strip 1.1, 2.1 and the roll shell 3.
  • the openings 10 can have a common feed channel 12, or as in FIG Fig. 6 are each supplied with lubricating water via their own feed channel 13.
  • the feed channels 12, 13 can be formed by recesses in the contact area of two adjacent parts of the sealing strip holder 1.2, for which purpose a feed part 11 is plugged or screwed onto the actual sealing strip holder 1.2.
  • the recesses can each be present in the form of a cross-section of a semicircle in the actual sealing strip holder 1.2 and in the feed part 11, so that a spray tube 1.5, 2.5 can be inserted into them.
  • Smaller tubes, which run in the openings 10 and / or have spray nozzles 1.4, 2.4 at the end, are preferably attached to the spray tube 1.5, 2.5.
  • the feed part 11 can be designed with hollow chambers, with the lubricant being fed to the spray nozzles 1.4, 2.4 or the openings 10 exclusively in the feed part 11, as in FIG Fig. 6 shown.
  • the sealing strip holder 1.2, 2.2 can also be designed as a single component, the sealing strip holder 1.2, 2.2 having feeds, for example one or more bores in its longitudinal direction, the openings 10 being formed by normal to these bores.
  • the sealing strip holder 1.2, 2.2 can advantageously also be designed as a hollow profile (for example extruded or extruded), at least one chamber of the hollow profile serving to supply lubricating water, for which purpose this chamber is preferably closed at one end of the hollow profile and at the other end to a feed line 14 is connected and the hollow profile is provided with openings 10 which lead into at least one chamber of the hollow profile used as a feed.
  • the chamber can also only extend over a partial area of the length of the opening of the hollow profile, for example in that the chamber is delimited on both sides by partition walls inserted into the opening.
  • the supply line 14 can be connected through an opening in one of the partition walls or through an opening from the outer surface of the hollow profile into the chamber.
  • the hollow profile is particularly preferably manufactured using the extrusion process (also called pultrusion process or pultrusion), and is thus a fiber-reinforced plastic profile.
  • extrusion process also called pultrusion process or pultrusion
  • the sealing strip holder 1.2, 2.2 on its side facing the roll shell 3 preferably has a sloping area towards the sealing strip 1.1, 2.1, which together with the sealing strip 1.1, 2.1 forms a channel through which excess lubricating water advantageously in a controlled manner laterally Can flow longitudinally of the sealing strip holder 1.2, 2.2.
  • a sealing strip holder according to the invention is shown viewed from the front in the direction of movement of the roll shell 3.
  • each opening 10 can be supplied via its own supply channel 13, each supply channel 13 having its own supply line 14, the flow rate of which can preferably be controlled or regulated by a valve 15.
  • the openings 10 can be widened in the shape of a slot in the longitudinal direction of the sealing strip holder 1.2, 2.2 so that the fluid jet emerging from the openings 10 covers a larger length range of the sealing strip 1.1, 2.1.
  • FIG. 8 shows preferably on at least one of the two end faces, preferably on that on which the other connections for the pressure hoses or electrical connections etc. are also located.
  • the connection point can also take place at a different position of the sealing strip holder 1.2, 2.2, for example on its front side or underside.

Landscapes

  • Paper (AREA)
  • Coating Apparatus (AREA)
  • Advancing Webs (AREA)
  • Package Closures (AREA)
  • Sealing Devices (AREA)

Description

Die Erfindung betrifft Dichtleistenhalter für Dichtleisten von Saugwalzen und deren Verwendung in Saugwalzen.The invention relates to sealing strip holders for sealing strips of suction rolls and their use in suction rolls.

Eine Saugwalze (suction roll), welche zur Entwässerung von Bahnmaterial beispielsweise bei Papiermaschinen eingesetzt wird, weist einen mit Öffnungen versehenen Walzenmantel und im Inneren zumindest einen Saugkasten auf. Der Saugkasten ist ortsfest im Inneren der Saugwalze montiert, wobei der mit Löchern versehene Walzenmantel um den Saugkasten rotiert. Um den Saugkasten gegenüber dem Walzenmantel abzudichten, weist dieser seitlich Dichtleisten auf, die das Innere des Saugkastens gegenüber dem restlichen Volumen der Saugwalze abdichten und zwar in Längsrichtung der Saugwalze. In Umfangsrichtung der Saugwalze wird der Saugkasten an seinen beiden Enden durch Formatbegrenzer begrenzt und gegenüber dem Walzenmantel abgedichtet.A suction roll, which is used for dewatering web material, for example in paper machines, has a roll shell provided with openings and at least one suction box inside. The suction box is fixedly mounted inside the suction roll, with the roll shell provided with holes rotating around the suction box. In order to seal the suction box against the roll shell, it has sealing strips on the side, which seal the interior of the suction box against the remaining volume of the suction roll, specifically in the longitudinal direction of the suction roll. In the circumferential direction of the suction roll, the suction box is delimited at both ends by format limiters and sealed against the roll shell.

Eine besondere Herausforderung bei der Konstruktion bzw. beim Betrieb von Saugwalzen besteht in der Zuführung von Schmierwasser zur Reduktion von Wärmeentwicklung und Verschleiß an der Dichtleiste.A particular challenge in the construction and operation of suction rolls is the supply of lubricating water to reduce heat generation and wear on the sealing strip.

Aus der WO 2013167656 A1 ist es bekannt, vor jeder verwendeten Dichtleiste in der Saugwalze ein Spritzrohr anzubringen, wobei jedes Spritzrohr eine eigene Zuleitung aufweist. Selbiges ist bereits aus der DE 1005825 B von 1957 bekannt. Nachteilig an der Einleitung vor der Dichtleiste durch zusätzliche Spritzrohre sind der zusätzliche Platzbedarf in der Saugwalze und der erhöhte Montageaufwand. Nachteilig an den bekannten Saugrohren innerhalb der Saugzone ist, dass diese zum einen die Saugzone verkleinern und somit die Effizienz der Saugwalze reduzieren und zum anderen das in der Saugzone herrschende Vakuum eine beträchtliche Menge des Schmierwassers absaugt bevor dieses an die Dichtleiste gelangt.From the WO 2013167656 A1 it is known to attach a spray tube in front of each sealing strip used in the suction roll, each spray tube having its own supply line. The same is already from the DE 1005825 B known from 1957. Disadvantages of the introduction in front of the sealing strip by additional spray pipes are the additional space required in the suction roll and the increased installation effort. The disadvantage of the known suction pipes within the suction zone is that, on the one hand, they reduce the size of the suction zone and thus reduce the efficiency of the suction roll and, on the other hand, the vacuum prevailing in the suction zone sucks off a considerable amount of the lubricating water before it reaches the sealing strip.

Aus der WO 2013167656 A1 ist es weiter bekannt, die Zuführung des Schmiermittels in der Dichtleiste vorzusehen, was auch der WO2014026913 (A1 ) entnommen werden kann. Die Zuführung des Schmierwassers in der Dichtleiste ist aus mehreren Gründen nachteilig ist. Erstens ist die Friktionsfläche der Dichtleiste durch die Öffnungen der Schmierwasserzuführung reduziert, zweitens verschleißen die Öffnungen der Schmierwasserzuführung zusehends, drittens ist die als Verschleißteil konzipierte Dichtleiste in der Herstellung aufwendig und somit teurer, viertens wird auch der Halter selbst komplizierter, fünftens ist bei im Dichtleistenhalter beweglichen Dichtleisten, wie sie nach dem Stand der Technik üblich sind, die Überleitung vom Dichtleistenhalter in die Dichtleiste schwierig, wodurch die Montage und Abdichtung des Schmierwassersystems aufwendig ist, sechsten kann die Schmiernut bzw. die Öffnungen in der Dichtleiste durch Verunreinigungen, Fasern oder Chemikalien verschlossen werden, was eine lokale Erhöhung des Verschleißes und der Temperatur hervorrufen würde, was wiederum zu einem Schaden an der Dichtleiste oder der Walze führen kann.From the WO 2013167656 A1 it is also known to provide the supply of lubricant in the sealing strip, which is also the WO2014026913 (A1 ) can be taken. The supply of the lubricating water in the sealing strip is disadvantageous for several reasons is. Firstly, the friction surface of the sealing strip is reduced by the openings of the lubricating water supply, secondly, the openings of the lubricating water supply are wearing out noticeably, thirdly, the sealing strip, which is designed as a wear part, is complex to manufacture and therefore more expensive, fourthly, the holder itself is also more complicated, and fifthly, it is movable in the sealing strip holder Sealing strips, as they are customary according to the prior art, the transition from the sealing strip holder to the sealing strip is difficult, which means that the assembly and sealing of the lubricating water system is complex; sixth, the lubrication groove or the openings in the sealing strip can be closed by impurities, fibers or chemicals , which would cause a local increase in wear and temperature, which in turn can lead to damage to the sealing strip or the roller.

Die der Erfindung zu Grunde liegende Aufgabe besteht darin, das Einbringen des Schmierwassers auf einfache Weise, platzsparend und zielgerichtet vorzunehmen. Diese Aufgabe wird durch die Merkmale des Anspruchs 1 für einen Dichtleistenhalter gelöst. Daraus ergeben sich Verwendungen des Dichtleistenhalters gemäß den Ansprüchen 14 und 15.The object on which the invention is based is to carry out the introduction of the lubricating water in a simple, space-saving and targeted manner. This object is achieved by the features of claim 1 for a sealing strip holder. This results in uses of the sealing strip holder according to claims 14 and 15.

Erfindungsgemäß ist vorgesehen als Verbesserung gegenüber dem Stand der Technik die Schmiermittelzuführung in den Dichtleistenhalter zu integrieren.According to the invention, as an improvement over the prior art, the lubricant supply is to be integrated into the sealing strip holder.

Dadurch kann das Schmierwasser sehr nahe an der Friktionsfläche, also jener Fläche mit der die Dichtleiste am Walzenmantel reibt, eingebracht und der Platzbedarf gegenüber einem vor dem Dichtleistenhalter montierten Spritzrohr reduziert werden. Zudem kann die Schmiermittelmenge durch die gezielte Einbringung nahe an der Dichtleiste reduziert werden, wodurch vorteilhaft der ansonsten enorme Wasserverbrauch der Dichtleiste gesenkt wird. Gegenüber einem Schmierwassersystem, welches in die Dichtleiste integriert ist, ergeben sich unter anderem die Vorteile, dass die Friktionsfläche nicht durch die Öffnungen der Schmierwasserzuführung reduziert ist und dass die Dichtleiste einen einfacheren Aufbau aufweist.As a result, the lubricating water can be brought in very close to the friction surface, i.e. the surface with which the sealing strip rubs on the roller shell, and the space requirement can be reduced compared to a spray pipe mounted in front of the sealing strip holder. In addition, the amount of lubricant can be reduced by the targeted introduction close to the sealing strip, whereby the otherwise enormous water consumption of the sealing strip is advantageously reduced. Compared to a lubricating water system which is integrated in the sealing strip, there are, among other things, the advantages that the friction surface is not reduced by the openings in the lubricating water supply and that the sealing strip has a simpler structure.

Eine Vorrichtung mit Verwendung eines erfindungsgemäßen Dichtleistenhalters besteht somit aus einer Saugwalze, in deren Inneren ein Saugkasten angebracht ist, welcher seitlich durch Dichtleisten begrenzt ist. Zumindest einer Dichtleiste ist eine Schmierwasserzuführung zugeordnet, welchen in Laufrichtung gesehen vor der Dichtleiste Schmierflüssigkeit in Richtung der Innenseite des perforierten Mantels der Saugwalze einbringt, wobei die Schmierwasserzuführung in den Dichtleistenhalter integriert ist.A device using a sealing strip holder according to the invention thus consists of a suction roller, inside of which a suction box is attached which is laterally bounded by sealing strips. At least one sealing strip is assigned a lubricating water supply which, viewed in the running direction, introduces lubricating fluid in front of the sealing strip in the direction of the inside of the perforated casing of the suction roll, the lubricating water supply being integrated into the sealing strip holder.

Jede Dichtleiste weist bevorzugt zudem einen Aktuator auf, über den der Anstelldruck der Dichtleiste an die innere Mantelfläche der Saugwalze veränderbar ist. Die in Laufrichtung gesehen zweite, hintere Dichtleiste weist vorzugsweise zusätzlich einen zweiten Aktuator auf über welchen der Öffnungswinkel des Spaltes zwischen Dichtleiste und Saugwalzenmantel veränderbar ist. Die in Laufrichtung gesehen zweite, hintere Dichtleiste weist bevorzugt einen elektroakustischen Wandler auf, welcher bevorzugt in den Halter der Dichtleiste integriert und somit vor Feuchtigkeit geschützt ist. In den Dichtleisten sind bevorzugt Temperatursensoren angebracht, welche neben der Temperaturmessung vorzugsweise auch zur Verschleißmessung dienen. Bevorzugt ist vorgesehen die Daten der Sensoren in einem Miniserver zu verarbeiten und die Aktuatoren durch den Miniserver anzusteuern. Ein Miniserver ist eine miniaturisierte Datenverarbeitungsanlage mit Ein- und Ausgangsmodulen und Möglichkeiten zur digitalen Kommunikation insbesondere zur drahtlosen Kommunikation mit Ein- und Ausgabegeräten und anderen Datenverarbeitungsanlagen eines Netzwerks.Each sealing strip preferably also has an actuator by means of which the contact pressure of the sealing strip on the inner lateral surface of the suction roll can be changed. The second, rear sealing strip viewed in the running direction preferably additionally has a second actuator by means of which the opening angle of the gap between the sealing strip and the suction roll shell can be changed. The second, rear sealing strip seen in the running direction preferably has an electroacoustic transducer, which is preferably integrated into the holder of the sealing strip and is thus protected from moisture. Temperature sensors are preferably attached in the sealing strips, which, in addition to temperature measurement, preferably also serve to measure wear. Provision is preferably made for the data from the sensors to be processed in a miniserver and the actuators to be controlled by the miniserver. A miniserver is a miniaturized data processing system with input and output modules and options for digital communication, in particular for wireless communication with input and output devices and other data processing systems in a network.

Bevorzugt ist in der Schmiermittelzuführung oder in der zur Schmiermittelzuführung führenden Leitung ein Durchflusssensor vorhanden, welcher in Datenverbindung mit dem Miniserver ist, um die Menge an eingesetztem Spritzwasser in Echtzeit zu überwachen bzw. zu messen. Die Durchflussmenge wird bevorzugt vom Miniserver beispielsweise durch Verstellung zumindest eines Ventils geregelt oder gesteuert.A flow sensor is preferably present in the lubricant feed or in the line leading to the lubricant feed, which flow sensor is in data connection with the miniserver in order to monitor or measure the amount of spray water used in real time. The flow rate is preferably regulated or controlled by the mini server, for example by adjusting at least one valve.

Bevorzugt wird zum optimierten Einsatz von Schmierflüssigkeit die Temperatur der Dichtleiste gemessen und der Schmierwassereinsatz bzw. die Schmierwassermenge in Abhängigkeit der gemessenen Temperatur gesteuert bzw. geregelt. Dazu kann die Temperatur an einem oder mehreren Punkten der Dichtleiste gemessen werden und die über die Länge der Dichtleiste eingebrachte Schmierwassermenge in jedem Bereich der Dichtleiste einheitlich hoch sein. Wird die Temperatur der Dichtleiste in mehreren Bereichen der Dichtleiste gemessen, kann auch ein örtlicher Temperaturverlauf in der Dichtleiste erfasst werden. Vorteilhaft kann die eingebrachte Schmiermittelmenge an einzelnen Bereichen des Längsverlaufs der Dichtleiste getrennt gesteuert bzw. geregelt werden, sodass im Fall einer lokalen Hitzeentstehung in der Dichtleiste nur im betroffenen Bereich Schmierwasser eingebracht wird. Da durch das Einbringen von Schmierwasser auch an der Dichtleiste anhaftendes Material weggespült wird, kann auf durch solche Verunreinigungen verursachte Temperaturerhöhungen reagiert werden indem das anhaftende Material durch Erhöhung des Schmierwasserflusses weggespült wird.For the optimized use of lubricant, the temperature of the sealing strip is preferably measured and the use of lubricant or the amount of lubricant is controlled or regulated as a function of the measured temperature. For this purpose, the temperature can be measured at one or more points on the sealing strip and the amount of lubricating water introduced over the length of the sealing strip can be uniformly high in every area of the sealing strip. If the temperature of the sealing strip is measured in several areas of the sealing strip, a local temperature profile can also be recorded in the sealing strip. The amount of lubricant introduced can advantageously be controlled or regulated separately in individual areas of the longitudinal course of the sealing strip, so that in the event of local heat generation in the sealing strip, lubricating water is only introduced in the affected area. Since material adhering to the sealing strip is also washed away by the introduction of lubricating water, it is possible to react to temperature increases caused by such impurities in that the adhering material is washed away by increasing the flow of lubricating water.

Da die Wärme in der Dichtleiste durch Reibung an der inneren Mantelfläche der Saugwalze entsteht und das Schmierwasser diese Reibung herabsetzt, kann so exakt die benötige Schmierwassermenge eingebracht werden, welche nötig ist um die Reibung und somit den Verschleiß gering zu halten.Since the heat in the sealing strip is created by friction on the inner surface of the suction roll and the lubricating water reduces this friction, the exact amount of lubricating water required can be introduced, which is necessary to keep the friction and thus the wear low.

Für das soeben beschriebene Verfahren ist es nötig, die Temperatur der Dichtleiste zu erfassen, möglichst nahe an der Oberfläche, mit welcher die Dichtleiste an der inneren Mantelfläche der Saugwalze reibt. Dazu ist es vorteilhaft, den Temperatursensor im Inneren der Dichtleiste anzubringen, wie aus der DE 102007027688 A1 bekannt. Die Distanz der Temperatursensoren der DE 102007027688 A1 zur besagten Oberfläche muss dabei so hoch sein, dass diese bis zum Erreichen des maximal zulässigen Verschleißes noch im Material der Dichtleiste integriert sind. Bevorzugt können mehrere Temperatursensoren in der Dichtleiste integriert sein, wobei diese Temperatursensoren in unterschiedlicher Tiefe in die Dichtleiste eingesetzt bzw. integriert sind.For the method just described it is necessary to detect the temperature of the sealing strip, as close as possible to the surface with which the sealing strip rubs against the inner surface of the suction roll. For this purpose, it is advantageous to attach the temperature sensor inside the sealing strip, as shown in the DE 102007027688 A1 known. The distance between the temperature sensors of the DE 102007027688 A1 to the surface in question must be so high that they are still integrated in the material of the sealing strip until the maximum permissible wear is reached. A plurality of temperature sensors can preferably be integrated in the sealing strip, these temperature sensors being inserted or integrated into the sealing strip at different depths.

Besonders vorteilhaft ist dabei, dass die Temperatursensoren auch zur Verschleißüberwachung bzw. Messung eingesetzt werden können. Dies erfolgt dadurch, dass die Temperatursensoren kaputt gehen, sobald diese nicht mehr vom Material der Dichtleiste geschützt sind und an der Saugwalze verschleißen.It is particularly advantageous that the temperature sensors can also be used for wear monitoring or measurement. This happens because the temperature sensors break as soon as they are no longer protected by the material of the sealing strip and wear out on the suction roll.

Bevorzugt sind immer mehrere solcher in der Tiefe versetzt angebrachten Temperatursensoren in einer Sensoreinheit zusammengefasst, wobei bevorzugt über die Längsrichtung der Dichtleiste verteilt mehrere solche Sensoreinheiten angebracht sind. Dadurch kann der örtliche Temperaturverlauf in der Dichtleiste und der örtliche Verschleiß in der Dichtleiste überwacht werden, bzw. diese Daten an eine Steuerung oder Regelung übertragen werden. Beim Schmierwasser bzw. dem Schmiermittel kann es sich tatsächlich um Wasser oder eine andere Flüssigkeit handeln, insbesondere können dem Wasser weitere Flüssigkeiten oder Zusätze beigemengt sein.Preferably, a plurality of such temperature sensors attached offset in depth are always combined in one sensor unit, wherein a plurality of such sensor units are preferably attached, distributed over the longitudinal direction of the sealing strip. As a result, the local temperature profile in the sealing strip and the local wear in the sealing strip can be monitored, or these data can be transmitted to a control or regulation. The lubricating water or the lubricant can actually be water or another liquid, in particular other liquids or additives can be added to the water.

Die Erfindung wird an Hand von Zeichnungen veranschaulicht:

Fig. 1:
Zeigt den Aufbau einer erfindungsgemäßen Dichtleiste mit erfindungsgemäßen Temperatursensoren mit Verschleißerkennung.
Fig. 2:
zeigt schematisch ein beispielhaftes erfindungsgemäßes Dichtleistensystem.
Fig. 3:
zeigt schematisch ein beispielhaftes erfindungsgemäßes Dichtleistensystem in geräuschminimierender Ausführung.
Fig. 4:
Zeigt schematisch eine besonders bevorzugte erfindungsgemäße Dichtvorrichtung einer Saugwalze.
Fig. 5:
Zeigt schematisch einen beispielhaften erfindungsgemäßen Dichtleistenhalter mit Dichtleiste im Querschnitt.
Fig. 6:
Zeigt schematisch einen weiteren beispielhaften erfindungsgemäßen Dichtleistenhalter mit Dichtleiste im Querschnitt.
Fig. 7:
Zeigt schematisch einen weiteren beispielhaften erfindungsgemäßen Dichtleistenhalter mit Dichtleiste im Querschnitt.
Fig. 8:
Zeigt schematisch einen weiteren beispielhaften erfindungsgemäßen Dichtleistenhalter mit Dichtleiste in Bewegungsrichtung des Saugwalzenmantels gesehen von vorne.
The invention is illustrated with the aid of drawings:
Fig. 1:
Shows the structure of a sealing strip according to the invention with temperature sensors according to the invention with wear detection.
Fig. 2:
shows schematically an exemplary sealing strip system according to the invention.
Fig. 3:
shows schematically an exemplary sealing strip system according to the invention in a noise-minimizing design.
Fig. 4:
Shows schematically a particularly preferred sealing device according to the invention of a suction roll.
Fig. 5:
Shows schematically an exemplary sealing strip holder according to the invention with a sealing strip in cross section.
Fig. 6:
Schematically shows another exemplary sealing strip holder according to the invention with a sealing strip in cross section.
Fig. 7:
Schematically shows another exemplary sealing strip holder according to the invention with a sealing strip in cross section.
Fig. 8:
Schematically shows another exemplary sealing strip holder according to the invention with sealing strip viewed from the front in the direction of movement of the suction roll jacket.

In Fig. 1 ist die erfindungsgemäße Dichtleiste 1.1, 2.1 mit integrierten Temperatursensoren 6.1 gezeigt. In dieser besonders bevorzugten Ausführungsvariante sind in der Dichtleiste 1.1, 2.1 mehren Sensoreinheiten 6 integriert, wobei jede Sensoreinheit 6 vier Temperatursensoren 6.1 aufweist. Bezüglich der oberen Fläche, also der Reib- bzw. Friktionsfläche der Dichtleiste 1.1, 2.1 weisen die Temperatursensoren 6.1 unterschiedliche Abstände auf. Der Abstand zwischen zwei aufeinander folgenden Temperatursensoren 6.1 beträgt beispielsweise 2 mm. Die Sensoreinheiten bestehen aus einer Leiterplatte 6.4, Temperatursensoren 6.1, einem Mikrochip 6.2 mit integriertem Funkmodul und einer Stromversorgung mittels Batterie 6.3. Durch die Anstellung der Dichtleiste 1.1, 2.1 an den rotierenden Walzenmantel 3 kommt es zu Reibung und dadurch zu einem Temperaturanstieg an der Dichtleiste 1.1, 2.1. Diese Temperaturänderung bewirkt eine Widerstandsänderung an den auf der Leiterplatte 6.4 positionierten Temperatursensoren 6.1, wobei aus der dadurch verursachten Spannungsänderung durch den programmierten Mikrochip 6.2 die Temperatur ermittelt wird. Wird ein Temperatursensor 6.1 durchgeschliffen, also zerstört, kommt es zu einer Signalunterbrechung. Dadurch ist der Mikrochip 6.2 in der Lage, durch die Signalunterbrechung der einzelnen Temperatursensoren 6.1 den genauen Dichtleistenverschleiß zu berechnen.In Fig. 1 the sealing strip according to the invention 1.1, 2.1 is shown with integrated temperature sensors 6.1. In this particularly preferred embodiment variant, several sensor units 6 are integrated in the sealing strip 1.1, 2.1, each sensor unit 6 having four temperature sensors 6.1. With regard to the upper surface, that is to say the friction or friction surface of the sealing strip 1.1, 2.1, the temperature sensors 6.1 have different distances. The distance between two successive temperature sensors 6.1 is 2 mm, for example. The sensor units consist of a circuit board 6.4, temperature sensors 6.1, a microchip 6.2 with an integrated radio module and a power supply using a battery 6.3. By placing the sealing strip 1.1, 2.1 on the rotating roll shell 3, there is friction and, as a result, a rise in temperature on the sealing strip 1.1, 2.1. This change in temperature causes a change in resistance at the temperature sensors 6.1 positioned on the circuit board 6.4, the temperature being determined by the programmed microchip 6.2 from the voltage change caused thereby. If a temperature sensor 6.1 is looped through, i.e. destroyed, the signal is interrupted. As a result, the microchip 6.2 is able to calculate the exact wear on the sealing strip by interrupting the signal from the individual temperature sensors 6.1.

Außerhalb der Saugwalze ist ein Miniserver mit Funkmodul positioniert, der die Daten von den Sensoreinheiten 6 über Funk empfängt. Der Miniserver ist vorzugsweise mit einem Netzwerk verbunden und die Daten können über ein Ausgabegerät wie beispielsweise Computer, Tabletcomputer, Laptop oder Mobiltelefon visualisiert werden.A mini server with a radio module is positioned outside the suction roller and receives the data from the sensor units 6 via radio. The miniserver is preferably connected to a network and the data can be visualized via an output device such as a computer, tablet computer, laptop or mobile phone.

Die Dichtleiste 1.1, 2.1 weist zumindest eine Sensoreinheit 6 auf, vorzugsweise weist die Dichtleiste 1.1, 2.1 mehrere Sensoreinheiten 6 auf, um die Temperatur an mehreren Punkten der Dichtleiste 1.1, 2.1 messen zu können.The sealing strip 1.1, 2.1 has at least one sensor unit 6, preferably the sealing strip 1.1, 2.1 has several sensor units 6 in order to be able to measure the temperature at several points on the sealing strip 1.1, 2.1.

In Fig. 2 ist ein erfindungsgemäßes Dichtleistensystem 1 gezeigt, welches bevorzugt in Bewegungsrichtung des Walzenmantels 3 gesehen als erstes Dichtleistensystem 1 eines Saugkastens 4 zum Einsatz kommt. Das Dichtleistensystem 1 besteht aus einer Dichtleiste 1.1 welche in der Nut des Dichtleistenhalters 1.2 beweglich aufgenommen ist. In der Nut befindet sich unterhalb der Dichtleiste 1.1 ein als Druckschlauch ausgebildeter Anstellschlauch 1.3. Vor der Dichtleiste 1.1 ist der Dichtleistenhalter 1.2 mit einem Schmierwassersystem versehen, welches Sprühdüsen 1.4 aufweist, über welche das Schmierwasser durch ein bevorzugt in den Dichtleistenhalter 1.2 integriertes Spritzrohr 1.5 eingebracht wird. In die Dichtleiste 1.1 ist bevorzugt zumindest eine Sensoreinheit 6 integriert, bzw. eingesetzt. Über den Druck im Anstellschlauch 1.3 kann der Anstelldruck, mit welchem die Dichtleiste 1.1 gegen die Innenseite des Walzenmantels 3 gedrückt wird, verändert werden.In Fig. 2 a sealing strip system 1 according to the invention is shown, which is preferably used as the first sealing strip system 1 of a suction box 4, viewed in the direction of movement of the roller jacket 3. The sealing strip system 1 consists of a sealing strip 1.1 which is movably received in the groove of the sealing strip holder 1.2. In the groove below the sealing strip 1.1 there is an adjusting hose 1.3 designed as a pressure hose. In front of the sealing strip 1.1, the sealing strip holder 1.2 is provided with a lubricating water system which has spray nozzles 1.4 via which the lubricating water is introduced through a spray pipe 1.5 preferably integrated in the sealing strip holder 1.2. At least one sensor unit 6 is preferably integrated or inserted into the sealing strip 1.1. The contact pressure with which the sealing strip 1.1 is pressed against the inside of the roll shell 3 can be changed via the pressure in the contact hose 1.3.

In Fig. 3 ist ein erfindungsgemäßes Dichtleistensystem 2 gezeigt, welches bevorzugt in Bewegungsrichtung der Saugwalze gesehen als zweites Dichtleistensystem 2 eines Saugkastens 4 zum Einsatz kommt. Das Dichtleistensystem 2 besteht aus einer Dichtleiste 2.1 welche entlang der unteren Vorderkante einen Steg aufweist, welcher in der Nut des Dichtleistenhalters 2.2 beweglich aufgenommen ist. In der Nut befindet sich unterhalb des Steges der Dichtleiste 2.1 ein Anstellschlauch 2.3. Vor der Dichtleiste 2.1 ist der Dichtleistenhalter 2.2 mit einem Schmierwassersystem versehen, welches Sprühdüsen 2.4 aufweist, über welche das Schmierwasser durch ein bevorzugt in den Dichtleistenhalter 2.2 integriertes Spritzrohr 2.5 eingebracht wird. In die Dichtleiste 2.1 ist bevorzugt zumindest eine Sensoreinheit 6 integriert, bzw. eingesetzt. Über den Druck im Anstellschlauch 2.3 kann der Anstelldruck, mit welchem die Dichtleiste 2.1 im vorderen Bereich gegen die Innenseite des Walzenmantels 3 gedrückt wird, verändert werden. Die Dichtleiste 2.1 weist eine gekrümmte obere Fläche auf, sodass die obere Fläche in ihrem vorderen Bereich am Walzenmantel 3 anliegt und im hinteren Bereich mit dem Walzenmantel 3 einen sich allmählich vergrößernden Spalt bildet. Die Breite dieses Spaltes kann durch eine höhenverstellbare Leiste 2.7 verstellt werden, welche das hintere Ende der Dichtleiste 2.1 nähere an den Walzenmantel 3 heran oder von diesem weg bewegen kann. Die höhenverstellbare Leiste 2.7 ist entlang einer schräg nach oben verlaufenden Nut einer in Längsrichtung der Dichtleiste 2.1 verschiebbaren Leiste 2.6 geführt. Die verschiebbaren Leiste 2.6 kann als Schlitten ausgeführt sein, welcher durch eine vom Motor angetriebene Stellspindel in der Nut des Dichtleistenhalters 2.2 verschoben wird. Eine Längsverschiebung der verschiebbaren Leiste 2.6 führt dazu, dass die höhenverstellbare Leiste 2.7 entlang der Nut nach oben verschoben wird. Es ist auch denkbar, die Leiste 2.6 feststehend auszuführen und durch Längsverschiebung der höhenverstellbaren Leiste 2.7 diese entlang der Nut in der Höhe zu verstellen. Da viele Möglichkeiten bestehen die Rotationsbewegung eines Schrittmotors in eine lineare Bewegung eines Stellglieds umzuwandeln, sei allgemein festgehalten, dass die Distanz des hinteren Endes der Dichtleiste 2.1 zum Walzenmantel 3 durch einen Motor veränderbar und in der jeweiligen Position haltbar ist.In Fig. 3 a sealing strip system 2 according to the invention is shown, which is preferably used as a second sealing strip system 2 of a suction box 4, viewed in the direction of movement of the suction roll. The sealing strip system 2 consists of a sealing strip 2.1 which has a web along the lower front edge which is movably received in the groove of the sealing strip holder 2.2. An adjusting hose 2.3 is located in the groove below the web of the sealing strip 2.1. In front of the sealing strip 2.1, the sealing strip holder 2.2 is provided with a lubricating water system which has spray nozzles 2.4 via which the lubricating water is introduced through a spray pipe 2.5 which is preferably integrated in the sealing strip holder 2.2. At least one sensor unit 6 is preferably integrated or inserted into the sealing strip 2.1. The contact pressure with which the sealing strip 2.1 is pressed in the front area against the inside of the roll shell 3 can be changed via the pressure in the contact hose 2.3. The sealing strip 2.1 has a curved upper surface, so that the upper surface rests against the roll shell 3 in its front area and in the rear area with the roll shell 3 forms a gradually increasing gap. The width of this gap can be adjusted by a height-adjustable strip 2.7, which can move the rear end of the sealing strip 2.1 closer to the roll shell 3 or away from it. The height-adjustable strip 2.7 is guided along an upwardly sloping groove of a strip 2.6 which can be displaced in the longitudinal direction of the sealing strip 2.1. The displaceable strip 2.6 can be designed as a slide which is displaced in the groove of the sealing strip holder 2.2 by an adjusting spindle driven by the motor. A longitudinal displacement of the displaceable bar 2.6 leads to the height-adjustable bar 2.7 being displaced upwards along the groove. It is also conceivable to make the bar 2.6 stationary and to adjust the height of the height-adjustable bar 2.7 along the groove by longitudinally displacing it. Since there are many possibilities to convert the rotational movement of a stepping motor into a linear movement of an actuator, it should be generally stated that the distance of the rear end of the sealing strip 2.1 to the roll shell 3 can be changed by a motor and can be kept in the respective position.

Im Dichtleistenhalter 2.2 ist bevorzugt ein symbolisch dargestellter Schallsensor 7 bzw. ein Tonabnehmer angebracht, welcher zur Messung des Geräuschpegels an bzw. nach der Dichtleiste 2.1 dient. Das erfindungsgemäße Regelungsverfahren sieht vor, dass der Öffnungswinkel des Spalts zwischen Dichtleiste 2.1 und Walzenmantel 3 derart geregelt wird, dass der Geräuschpegel auf ein Minimum reduziert wird.In the sealing strip holder 2.2, a symbolically represented sound sensor 7 or a pickup is preferably attached, which is used to measure the noise level on or after the sealing strip 2.1. The control method according to the invention provides that the opening angle of the gap between the sealing strip 2.1 and the roll shell 3 is controlled in such a way that the noise level is reduced to a minimum.

Als Verallgemeinerung kann festgehalten werden, dass anstelle der Druckschläuche 1.3, 2.3 auch andere nach dem Stand der Technik bekannte Verstellvorrichtungen an der Dichtleiste 1.1 und dem vorderen Bereich der Dichtleiste 2.1 eingesetzt werden können. So können beispielsweise zusätzlich zu den Druckschläuchen Klemmvorrichtungen vorhanden sein, um die Dichtleiste temporär oder nach Erreichen eines stabilen, optimalen Betriebszustands in ihrer Position zu fixieren. Außerdem kann wie aus der EP 0943729 B1 bekannt ein zusätzlicher Druckschlauch vorhanden sein, welcher in entgegengesetzter Richtung zum ersten Druckschlauch (Anstellschlauch) auf die Dichtleiste wirkt, um diese vom Walzenmantel "wegziehen" zu können.As a generalization, it can be stated that instead of the pressure hoses 1.3, 2.3, other adjustment devices known from the prior art can be used on the sealing strip 1.1 and the front area of the sealing strip 2.1. For example, clamping devices can be present in addition to the pressure hoses in order to fix the sealing strip in its position temporarily or after a stable, optimal operating state has been reached. In addition, as from the EP 0943729 B1 known an additional pressure hose is available which acts in the opposite direction to the first pressure hose (adjustment hose) on the sealing strip in order to be able to "pull" it away from the roll shell.

Erfindungsgemäß ist es auch möglich, zur Verstellung der Dichtleiste 1.1 und des vorderen Bereichs der Dichtleiste 2.1 einen Verstellmechanismus vorzusehen, wie er am hinteren Bereich der Dichtleiste 2.1 eingesetzt ist. Dabei kann auf den Einsatz eines Anstellschlauches verzichtet werden. Da im Gegensatz zum hinteren Bereich der Dichtleiste 2.1, deren vorderer Bereich und die Dichtleiste 1.1 mit dem Walzenmantel 3 in Kontakt bringbar sind, ist es erforderlich den Anstelldruck steuer- oder regelbar zu gestalten. Der Anstelldruck kann dabei durch ein regelbares Haltemoment des Motors geregelt werden, oder indirekt durch ein federelastisches Element regelbar sein, welches sich zwischen dem Stellelement und der Dichtleiste befindet. Ist die Dichtleiste bereits in Kontakt mit dem Walzenmantel kann über eine weitere Verstellung des Stellgliedes über das federelastische Element eine mit zunehmender Verformung des federelastischen Elements zunehmende Kraft ausgeübt werden, mit welcher die Dichtleiste gegen den Walzenmantel gepresst wird. Vorteilhaft ist, dass das Stellglied auch so positioniert werden kann, dass sich ein schmaler Spalt zwischen Dichtleiste und Walzenmantel ergibt.According to the invention, it is also possible to provide an adjustment mechanism for adjusting the sealing strip 1.1 and the front area of the sealing strip 2.1, as is used in the rear area of the sealing strip 2.1. There is no need to use an adjusting hose. Since, in contrast to the rear area of the sealing strip 2.1, its front area and the sealing strip 1.1 can be brought into contact with the roll shell 3, it is necessary to make the contact pressure controllable or regulatable. The contact pressure can be regulated by a controllable holding torque of the motor, or it can be regulated indirectly by a resilient element which is located between the actuating element and the sealing strip. If the sealing strip is already in contact with the roll shell, a further adjustment of the actuator via the resilient element can exert an increasing force with increasing deformation of the resilient element, with which the sealing strip is pressed against the roll shell. It is advantageous that the actuator can also be positioned in such a way that there is a narrow gap between the sealing strip and the roll shell.

In Fig. 4 ist schematisch der Aufbau eines Saugkastens 4 mit zwei erfindungsgemäßen Dichtleistensystemen 1, 2 gezeigt. Die Bewegungsrichtung des Walzenmantels 3 ist durch einen Pfeil angedeutet. Das in Bewegungsrichtung gesehen vordere erste Dichtleistensystem 1 ist gemäß Fig. 2 ausgeführt, das in Bewegungsrichtung gesehen hintere zweite Dichtleistensystem 2 ist gemäß Fig. 3 ausgeführt. Wie in Fig. 4 erkennbar bilden die beiden Dichtleistensysteme 1, 2 die seitliche Begrenzung des Saugkasten 4. Im Inneren des Saugkastens 4 ergibt sich so ein gegenüber dem restlichen Inneren der Saugwalze abgedichteter Bereich 4.1.In Fig. 4 the structure of a suction box 4 with two sealing strip systems 1, 2 according to the invention is shown schematically. The direction of movement of the roll shell 3 is indicated by an arrow. The front first sealing strip system 1 as seen in the direction of movement is according to FIG Fig. 2 executed, the rear second sealing strip system 2 viewed in the direction of movement is according to FIG Fig. 3 executed. As in Fig. 4 It can be seen that the two sealing strip systems 1, 2 form the lateral delimitation of the suction box 4. In the interior of the suction box 4, there is thus an area 4.1 that is sealed off from the rest of the interior of the suction roll.

Wie symbolisch dargestellt befindet sich im Inneren des Saugkastens 4 ein Drucksensor 5 zur Messung des Unterdrucks bzw. Vakuums im abgedichteten Bereich 4.1. Alternativ kann die Ermittlung des Unterdrucks im Saugkasten 4 auch in der bzw. durch die Vakuumpumpe erfolgen, welche zur Erzeugung des Vakuums im abgedichteten Bereich 4.1 dient.As shown symbolically, a pressure sensor 5 for measuring the negative pressure or vacuum is located inside the suction box 4 in the sealed area 4.1. Alternatively, the negative pressure in the suction box 4 can also be determined in or by the vacuum pump, which is used to generate the vacuum in the sealed area 4.1.

Das erste Dichtleistensystem 1 weist eine Temperatursensorik 16 zur Ermittlung der Temperatur der Dichtleiste 1.1 auf, welche bevorzugt als mehrere in die Dichtleiste 1.1 integrierte Sensoreinheiten 6 gemäß Fig. 1 ausgeführt ist.The first sealing strip system 1 has a temperature sensor system 16 for determining the temperature of the sealing strip 1.1, which preferably takes the form of a plurality of sensor units 6 integrated in the sealing strip 1.1 according to FIG Fig. 1 is executed.

Das zweite Dichtleistensystem 2 weist eine Temperatursensorik 26 zur Ermittlung der Temperatur der Dichtleiste 2.1 auf, welche bevorzugt als mehrere in die Dichtleiste 2.1 integrierte Sensoreinheiten 6 gemäß Fig. 1 ausgeführt ist. Das zweite Dichtleistensystem 2 weist zudem einen Sensor zur Geräuscherfassung auf, welcher bevorzugt als ein in den Dichtleistenhalter 2.2 integrierter Schallsensor 7 ausgeführt ist.The second sealing strip system 2 has a temperature sensor system 26 for determining the temperature of the sealing strip 2.1, which preferably takes the form of a plurality of sensor units 6 according to FIG Fig. 1 is executed. The second sealing strip system 2 also has a sensor for recording noise, which is preferably designed as a sound sensor 7 integrated in the sealing strip holder 2.2.

Das erste Dichtleistensystem 1 weist einen Verstellmechanismus zur Positionsänderung der Dichtleiste 1.1 auf, welcher bevorzugt einen Anstellschlauch 1.3 umfasst. Über den Verstellmechanismus ist der Anstelldruck der Dichtleiste 1.1 und/oder die Distanz zwischen Dichtleiste 1.1 und Walzenmantel 3 steuerbar und/oder regelbar. Das erste Dichtleistensystem 1 weist eine Schmierwasserzuführung auf, wobei die Menge an eingebrachtem Schmierwasser steuerbar und oder regelbar ist. Die Schmierwasserzuführung ist vorzugsweise als ein in den Dichtleistenhalter 1.2 integriertes Spritzrohr 1.5 ausgeführt.The first sealing strip system 1 has an adjustment mechanism for changing the position of the sealing strip 1.1, which preferably comprises an adjusting hose 1.3. The setting pressure of the sealing strip 1.1 and / or the distance between the sealing strip 1.1 and the roll shell 3 can be controlled and / or regulated via the adjustment mechanism. The first sealing strip system 1 has a lubricating water supply, the amount of lubricating water introduced being controllable and / or regulatable. The lubricating water supply is preferably designed as a spray tube 1.5 integrated in the sealing strip holder 1.2.

Das zweite Dichtleistensystem 2 weist einen Verstellmechanismus zur Positionsänderung des vorderen Bereichs der Dichtleiste 2.1 auf, welcher bevorzugt einen Anstellschlauch 2.3 umfasst. Über den Verstellmechanismus sind der Anstelldruck des vorderen Bereichs der Dichtleiste 2.1 und/oder die Distanz zwischen dem vorderen Bereich der Dichtleiste 2.1 und Walzenmantel 3 steuerbar und/oder regelbar. Das zweite Dichtleistensystem 2 weist einen zweiten Verstellmechanismus zur Positionsänderung des hinteren Bereichs der Dichtleiste 2.1 auf, welcher bevorzugt einen Schrittmotor umfasst. Über den zweiten Verstellmechanismus ist der Öffnungswinkel zwischen dem hinteren Bereich der Dichtleiste 2.1 und dem Walzenmantel 3 steuerbar und/oder regelbar.The second sealing strip system 2 has an adjustment mechanism for changing the position of the front area of the sealing strip 2.1, which preferably comprises an adjusting hose 2.3. The setting pressure of the front area of the sealing strip 2.1 and / or the distance between the front area of the sealing strip 2.1 and the roll shell 3 can be controlled and / or regulated via the adjustment mechanism. The second sealing strip system 2 has a second adjustment mechanism for changing the position of the rear area of the sealing strip 2.1, which preferably comprises a stepper motor. About the second adjustment mechanism is the opening angle between the rear area of the sealing strip 2.1 and the roll shell 3 can be controlled and / or regulated.

Das zweite Dichtleistensystem 2 weist eine Schmierwasserzuführung auf, wobei die Menge an eingebrachtem Schmierwasser steuerbar und oder regelbar ist. Die Schmierwasserzuführung ist vorzugsweise als ein in den Dichtleistenhalter 2.2 integriertes Spritzrohr 2.5 ausgeführt.The second sealing strip system 2 has a lubricating water supply, the amount of lubricating water introduced being controllable and / or regulatable. The lubricating water supply is preferably designed as a spray pipe 2.5 integrated in the sealing strip holder 2.2.

Das erfindungsgemäße Regelungsverfahren besteht in einer ersten Variante in der Erfassung des Unterdrucks bzw. Vakuums im Saugkasten 4, wobei der Anstelldruck bzw. der Abstand zum Walzenmantel 3 der ersten Dichtleiste 1.1 und der Anstelldruck bzw. der Abstand zum Walzenmantel 3 des vorderen Bereichs der zweiten Dichtleiste 2.1 so geregelt werden, dass sich jener minimale Anstelldruck bzw. jener maximale Abstand einstellt, welcher zulässig ist, um das Vakuum in gewünschter Stärke im Inneren des Saugkastens 4 aufrecht zu halten. Der Anstelldruck bzw. der Abstand kann dabei für beide Dichtleisten 1.1, 2.1 gemeinsam variiert werden, beispielsweise indem die Druckschläuche 1.3, 2.3 mit demselben Druck beaufschlagt werden.The control method according to the invention consists in a first variant in the detection of the negative pressure or vacuum in the suction box 4, the contact pressure or the distance to the roll shell 3 of the first sealing strip 1.1 and the contact pressure or the distance to the roll shell 3 of the front area of the second sealing strip 2.1 are regulated in such a way that the minimum contact pressure or that maximum distance is set which is permissible to maintain the vacuum in the interior of the suction box 4 at the desired level. The contact pressure or the distance can be varied jointly for both sealing strips 1.1, 2.1, for example by applying the same pressure to the pressure hoses 1.3, 2.3.

Besonders vorteilhaft an diesem erfindungsgemäßen Regelungsverfahren ist, dass der Energiebedarf der Walze minimiert wird, da mit einem minimalen Anstelldruck das Vakuum aufrecht gehalten wird, woraus sich eine hohe Einsparung ergibt.What is particularly advantageous about this control method according to the invention is that the energy requirement of the roller is minimized, since the vacuum is maintained with a minimal contact pressure, which results in high savings.

Es ist auch denkbar, den Anstelldruck bzw. der Abstand gegebenenfalls unter Anwendung festlegbarer zusätzlicher SteuerVorschriften für beide Dichtleisten 1.1, 2.1 getrennt zu regeln, beispielsweise indem die stärker verschlissenen Leiste weniger stark angepresst wird als die noch weniger verschlissene Leiste.It is also conceivable to regulate the contact pressure or the distance separately for both sealing strips 1.1, 2.1, if necessary using definable additional control rules, for example by pressing the more heavily worn strip less than the even less worn strip.

Vorzugsweise ist bei der ersten Variante des Regelungsverfahren zudem eine Temperatursensorik 16, 26 zur Erfassung der Dichtleistentemperatur jeder Dichtleiste 1.1, 2.1 vorhanden. Die Menge an eingesetztem Schmierwasser für Dichtleiste 1.1 wird dabei in Abhängigkeit der Messwerte der Temperatursensorik 16 gesteuert bzw. geregelt und die Menge an eingesetztem Schmierwasser für Dichtleiste 2.1 wird dabei in Abhängigkeit der Messwerte der Temperatursensorik 26 gesteuert bzw. geregelt. Die Regelung der Schmiermittelmenge in Abhängigkeit der Temperatur der Dichtleiste 1.1, 2.1 ist auch ohne die zuvor genannte Regelung des Anstelldrucks einsetzbar bzw. vorteilhaft.In the first variant of the control method, there is preferably also a temperature sensor system 16, 26 for detecting the sealing strip temperature of each sealing strip 1.1, 2.1. The amount of lubricating water used for sealing strip 1.1 is controlled or regulated as a function of the measured values of the temperature sensor system 16, and the amount of lubricating water used for sealing strip 2.1 is controlled or regulated as a function of the measured values of the temperature sensor system 26. The regulation of the amount of lubricant as a function of the temperature of the sealing strip 1.1, 2.1 can also be used or advantageous without the aforementioned regulation of the contact pressure.

Besonders vorteilhaft an diesem erfindungsgemäßen Steuerungs- bzw. Regelungsverfahren ist, dass der Wasserbedarf minimiert wird und somit deutlich weniger Wasser verbraucht wird als mit konventionellen Spritzrohren.What is particularly advantageous about this control or regulation method according to the invention is that the water requirement is minimized and thus significantly less water is used than with conventional spray pipes.

In Erweiterung der ersten Variante wird in der zweiten Variante der erfindungsgemäßen Regelung zudem der Geräuschpegel nach bzw. am zweiten Dichtleistensystem 2 gemessen und in Abhängigkeit des Messwerts der Abstand des hinteren Bereichs der Dichtleiste 2.1 zum Walzenmantel 3 und damit der Öffnungswinkel des Spalts zwischen Dichtleiste 2.1 und Walzenmantel 3 geregelt, sodass sich ein minimaler Geräuschpegel ergibt. Dieses Verfahren ist auch getrennt von den zuvor beschriebenen Verfahren vorteilhaft anwendbar, da die Lärmentwicklung an konventionellen Dichtleisten bis zu 110 dBA betragen und somit gesundheitsgefährdend sein kann.As an extension of the first variant, the second variant of the inventive regulation also measures the noise level after or on the second sealing strip system 2 and, depending on the measured value, the distance between the rear area of the sealing strip 2.1 and the roll shell 3 and thus the opening angle of the gap between the sealing strip 2.1 and Roller shell 3 regulated, so that there is a minimal noise level. This method can also be used advantageously separately from the methods described above, since the noise generation on conventional sealing strips can be up to 110 dBA and can therefore be hazardous to health.

Erfindungsgemäß ist vorgesehen alle Messwerte aller Sensoren an einen Miniserver zu übermitteln, bevorzugt drahtlos, in welchem die Regel- und Steuervorschriften abgespeichert sind, die gegebenenfalls durch ein Programm oder einen Benutzer abgeändert werden können. Der Miniserver ermittelt aus den Messwerten die benötigten Stellgrößen zur Ansteuerung der Aktuatoren. Bevorzugt ist der Miniserver mit einem Anzeige- und Eingabegerät verbunden, insbesondere drahtlos, um die Betriebsparameter anzuzeigen, bzw. um manuelle Änderungen zu erlauben.According to the invention, it is provided to transmit all measured values of all sensors to a mini server, preferably wirelessly, in which the regulation and control rules are stored, which can optionally be changed by a program or a user. The miniserver uses the measured values to determine the correcting variables required to control the actuators. The miniserver is preferably connected to a display and input device, in particular wirelessly, in order to display the operating parameters or to allow manual changes.

Besonders vorteilhaft an der gegenständlichen Erfindung ist, dass das intelligente System zur Steuerung aller wesentlichen Parameter innerhalb einer Saugwalze, welche zentral vorzugsweise durch einen Miniserver überwacht und entweder vom System oder vom Benutzer in Abhängigkeit zueinander verändert werden können, einen möglichst energieeffizienten und geräuscharmen Betrieb gewährleistet und eine vorbeugende Instandhaltung ermöglicht. Das System basiert auf mit Sensoren ausgestatteten Bauteilen wie insbesondere Dichtleiste, Druckschlauch, Dichtleistenhalter und Spritzrohr, welche vorzugsweise über Funk/WLAN konstant Informationen über den von außen nicht einseh- und/oder kontrollierbaren Prozess geben und liefern somit in einmaliger Form Informationen über den Betriebszustand der Saugwalze.What is particularly advantageous about the present invention is that the intelligent system for controlling all essential parameters within a suction roll, which is monitored centrally, preferably by a mini server, and can be changed either by the system or by the user depending on one another, ensures the most energy-efficient and quiet operation possible and enables preventive maintenance. The system is based on components equipped with sensors such as sealing strip, pressure hose, sealing strip holder and spray tube, which preferably provide constant information about the process that cannot be viewed and / or controlled from the outside, preferably via radio / WLAN, and thus provide information about the operating status of the Suction roll.

In den Fig. 5, 6 und 7 sind beispielhafte Schmiermittelzuführungen gezeigten. Der Dichtleistenhalter 1.2 weist bei diesen Ausführungen mehrere Öffnungen 10 auf, welche beispielsweise in Form von Bohrungen vorliegen, die über die Längsrichtung des Dichtleistenhalters 1.2 verteilt beabstandet zueinander angeordnet sind. Die Bohrungen der Öffnungen 10 verlaufen derart, dass eine gedachte geradlinige Verlängerung dieser in den Eckbereich zwischen Dichtleiste 1.1, 2.1 und dem Walzenmantel 3 führt.In the Figures 5, 6 and 7 are exemplary lubricant feeds shown. In these designs, the sealing strip holder 1.2 has a plurality of openings 10, which are present, for example, in the form of bores which are distributed over the longitudinal direction of the sealing strip holder 1.2 and are spaced apart from one another. The bores of the openings 10 run in such a way that an imaginary straight extension of these leads into the corner area between the sealing strip 1.1, 2.1 and the roll shell 3.

Wie in Fig. 5 dargestellt können die Öffnungen 10 eine gemeinsame Zuführkanal 12 aufweisen, oder wie in Fig. 6 jeweils über einen eigenen Zuführkanal 13 mit Schmierwasser versorgt werden.As in Fig. 5 shown, the openings 10 can have a common feed channel 12, or as in FIG Fig. 6 are each supplied with lubricating water via their own feed channel 13.

Wie in Fig. 5 dargestellt können die Zuführkanäle 12, 13 durch Ausnehmungen im Berührungsbereich zweier aneinander anliegender Teile des Dichtleistenhalters 1.2 gebildet sein, wozu am eigentlichen Dichtleistenhalter 1.2 ein Zuführteil 11 aufgesteckt oder angeschraubt wird. Wie in den Fig. 2 - 4 dargestellt ist, können die Ausnehmungen jeweils in Querschnittform eines Halbkreises im eigentlichen Dichtleistenhalter 1.2 und im Zuführteil 11 vorliegen, sodass in diese ein Spritzrohr 1.5, 2.5 eingesetzt werden kann. Am Spritzrohr 1.5, 2.5 sind bevorzugt kleinere Rohre angebracht, welche in den Öffnungen 10 verlaufen und/oder am Ende Sprühdüsen 1.4, 2.4 aufweisen.As in Fig. 5 shown, the feed channels 12, 13 can be formed by recesses in the contact area of two adjacent parts of the sealing strip holder 1.2, for which purpose a feed part 11 is plugged or screwed onto the actual sealing strip holder 1.2. As in the Figs. 2-4 is shown, the recesses can each be present in the form of a cross-section of a semicircle in the actual sealing strip holder 1.2 and in the feed part 11, so that a spray tube 1.5, 2.5 can be inserted into them. Smaller tubes, which run in the openings 10 and / or have spray nozzles 1.4, 2.4 at the end, are preferably attached to the spray tube 1.5, 2.5.

Wenn die beiden Teile 1.2, 11 ausreichend dicht aneinander befestigt sind, kann auch der durch die beiden Ausnehmungen resultierende Zuführkanal 12, 13 zum Zuleiten der Schmierflüssigkeit dienen.If the two parts 1.

Das Zuführteil 11 kann mit Hohlkammern ausgeführt sein, wobei die Zuführung des Schmiermittels bis zu den Sprühdüsen 1.4, 2.4 oder den Öffnungen 10 ausschließlich im Zuführteil 11 erfolgen kann, wie in Fig. 6 dargestellt.The feed part 11 can be designed with hollow chambers, with the lubricant being fed to the spray nozzles 1.4, 2.4 or the openings 10 exclusively in the feed part 11, as in FIG Fig. 6 shown.

Wie in den Fig. 7 dargestellt ist, kann der Dichtleistenhalter 1.2, 2.2 auch als ein einzelnes Bauteil ausgeführt sein, wobei der Dichtleistenhalter 1.2, 2.2 Zuführungen aufweist, beispielsweise eine oder mehrere Bohrungen in seiner Längsrichtung, wobei die Öffnungen 10 durch normal zu diesen verlaufende Bohrungen gebildet sind. Der Dichtleistenhalter 1.2, 2.2 kann vorteilhaft auch als Hohlprofil (beispielsweise stranggepresst oder extrudiert) ausgeführt sein, wobei zumindest eine Kammer des Hohlprofils zur Zuführung von Schmierwasser dient, wozu diese Kammer bevorzugt an einem Ende des Hohlprofils verschlossen ist und am anderen Ende an eine Zuleitung 14 angeschlossen ist und das Hohlprofil mit Öffnungen 10 versehen ist, die in zumindest eine als Zuführung genutzte Kammer des Hohlprofils führen. Die Kammer kann sich auch nur über einen Teilbereich der Länge der Öffnung des Hohlprofils erstrecken, beispielsweise indem die Kammer durch in die Öffnung eingesetzte Trennwände beidseitig begrenzt wird. Der Anschluss der Zuleitung 14 kann durch eine Öffnung in einer der Trennwände erfolgen oder durch eine Öffnung von der Mantelfläche des Hohlprofils in die Kammer.As in the Fig. 7 is shown, the sealing strip holder 1.2, 2.2 can also be designed as a single component, the sealing strip holder 1.2, 2.2 having feeds, for example one or more bores in its longitudinal direction, the openings 10 being formed by normal to these bores. The sealing strip holder 1.2, 2.2 can advantageously also be designed as a hollow profile (for example extruded or extruded), at least one chamber of the hollow profile serving to supply lubricating water, for which purpose this chamber is preferably closed at one end of the hollow profile and at the other end to a feed line 14 is connected and the hollow profile is provided with openings 10 which lead into at least one chamber of the hollow profile used as a feed. The chamber can also only extend over a partial area of the length of the opening of the hollow profile, for example in that the chamber is delimited on both sides by partition walls inserted into the opening. The supply line 14 can be connected through an opening in one of the partition walls or through an opening from the outer surface of the hollow profile into the chamber.

Besonders bevorzugt wird das Hohlprofil im Strangziehverfahren (auch Pultrusionsverfahren oder pultrudieren genannt) gefertigt, und ist somit ein faserverstärktes Kunststoffprofil.The hollow profile is particularly preferably manufactured using the extrusion process (also called pultrusion process or pultrusion), and is thus a fiber-reinforced plastic profile.

Wie in den Fig. 5, 6 und 7 dargestellt, weist der Dichtleistenhalter 1.2, 2.2 an seiner dem Walzenmantel 3 zugewandten Seite bevorzugt einen zur Dichtleiste 1.1, 2.1 hin abschüssig verlaufenden Bereich auf, welcher mit der Dichtleiste 1.1, 2.1 zusammen eine Rinne bildet, über welche überschüssiges Schmierwasser vorteilhaft auf kontrollierte Weise seitlich in Längsrichtung des Dichtleistenhalters 1.2, 2.2 abfließen kann.As in the Figures 5, 6 and 7 shown, the sealing strip holder 1.2, 2.2 on its side facing the roll shell 3 preferably has a sloping area towards the sealing strip 1.1, 2.1, which together with the sealing strip 1.1, 2.1 forms a channel through which excess lubricating water advantageously in a controlled manner laterally Can flow longitudinally of the sealing strip holder 1.2, 2.2.

In Fig. 8 ist ein erfindungsgemäßer Dichtleistenhalter in Bewegungsrichtung des Walzenmantels 3 gesehen von vorne dargestellt.In Fig. 8 a sealing strip holder according to the invention is shown viewed from the front in the direction of movement of the roll shell 3.

Wie im linken Teil der Abbildung dargestellt, kann jeweils eine Öffnung 10 über einen eigenen Zuführkanal 13 versorgt werden, wobei jeder Zuführkanal 13 eine eigene Zuleitung 14 aufweist, deren Durchflussmenge vorzugsweise durch ein Ventil 15 gesteuert bzw. geregelt werden kann. Die Öffnungen 10 können in Längsrichtung des Dichtleistenhalters 1.2, 2.2 schlitzförmig verbreitert sein, damit der aus den Öffnungen 10 austretende Fluidstrahl einen größeren Längenbereich der Dichtleiste 1.1, 2.1 abdeckt.As shown in the left part of the figure, each opening 10 can be supplied via its own supply channel 13, each supply channel 13 having its own supply line 14, the flow rate of which can preferably be controlled or regulated by a valve 15. The openings 10 can be widened in the shape of a slot in the longitudinal direction of the sealing strip holder 1.2, 2.2 so that the fluid jet emerging from the openings 10 covers a larger length range of the sealing strip 1.1, 2.1.

Wie im rechten Teil der Abbildung dargestellt, können mehrere Öffnungen 10 aus einem gemeinsamen Zuführkanal 12 gespeist werden, wobei der gemeinsame Zuführkanal 12 eine Zuleitung 14 aufweist, deren Durchflussmenge vorzugsweise durch ein Ventil 15 gesteuert bzw. geregelt werden kann. Die Zuführkanäle 12, 13 weisen zumindest eine Anschlussstelle für die Zuleitung 14 auf, wobei sich diese wie in Fig. 8 dargestellt bevorzugt an zumindest einer der beiden Stirnseiten, bevorzugt an jener, an welcher auch die übrigen Anschlüsse für die Druckschläuche bzw. elektrische Anschlüsse etc. sind, befindet. Weniger bevorzugt kann die Anschlussstelle auch an einer anderen Position des Dichtleistenhalters 1.2, 2.2 erfolgen, beispielsweise an dessen Vorderseite oder Unterseite.As shown in the right part of the figure, several openings 10 can be fed from a common feed channel 12, the common feed channel 12 having a feed line 14, the flow rate of which can preferably be controlled or regulated by a valve 15. The feed channels 12, 13 have at least one connection point for the feed line 14, these being as in FIG Fig. 8 shown preferably on at least one of the two end faces, preferably on that on which the other connections for the pressure hoses or electrical connections etc. are also located. Less preferably, the connection point can also take place at a different position of the sealing strip holder 1.2, 2.2, for example on its front side or underside.

Claims (15)

  1. A sealing ledge holder (1.2, 2.2) for use as intended in a sealing ledge system (1, 2) of a suction roll for dewatering sheet material, wherein the sealing ledge system (1, 2) comprises at least one lubricant feed and is used to laterally seal at least one suction box (4) inside the suction roll, wherein the sealing ledge holder (1.2, 2.2) is designed to receive a sealing ledge (1.1, 2.1) which seals off the suction box (4) towards the roll shell (3) of the suction roll, and the sealing ledge holder (1.2, 2.2) has an outer side which is in front of the sealing ledge (1.1, 2.1) as seen in the direction of movement of the roll shell (3) when using the sealing ledge holder (1.2, 2.2) in the suction roll,
    characterised in that
    at least one lubricant feed is included in the sealing ledge holder (1.2, 2.2), wherein, in the sealing ledge holder (1.2, 2.2), at least one opening (10) of the lubricant feed extends to an outer side of the sealing ledge holder (1.2, 2.2) which is in front of the sealing ledge (1.1, 2.1) as seen in the direction of movement of the roll shell (3) when used as intended in the suction roll.
  2. The sealing ledge holder (1.2, 2.2) of claim 1, characterised in that at least one lubricant feed has a spray pipe (1.5, 2.5) included in the sealing ledge holder (1.2, 2.2), from which multiple openings (10) extend to that outer side of the sealing ledge holder (1.2, 2.2) which is in front of the sealing ledge (1.1, 2.1) as seen in the direction of movement of the roll shell (3) when used as intended in the suction roll.
  3. The sealing ledge holder (1.2, 2.2) of claim 1, characterised in that at least one lubricant feed is formed by at least one hollow compartment provided in the sealing ledge holder (1.2, 2.2), from which multiple openings (10) extend to that outer side of the sealing ledge holder (1.2, 2.2) which is in front of the sealing ledge (1.1, 2.1) as seen in the direction of movement of the roll shell (3) when used as intended in the suction roll.
  4. The sealing ledge holder (1.2, 2.2) of claim 3, characterised in that the sealing ledge holder (1.2, 2.2) is a hollow profile, in particular a pultrusion profile, wherein at least one hollow compartment is formed from an opening extending through the profile along the longitudinal direction, or a portion of said opening, wherein the opening or opening portion is closed on at least one end and has a port for feeding lubricant.
  5. The sealing ledge holder (1.2, 2.2) of any one of claims 1 to 4, characterised in that at least one opening (10) is present in the shape of a spray jet (1.4, 2.4).
  6. The sealing ledge holder (1.2, 2.2) of any one of claims 1 to 5, characterised in that at least one opening (10) is directed to the gap formed by the roll shell (3) and the sealing ledge (1.1, 2.1), or its frontmost contact line, when used as intended in the suction roll.
  7. The sealing ledge holder (1.2, 2.2) of any one of claims 1 to 6, characterised in that multiple openings (10) share a feed channel (12).
  8. The sealing ledge holder (1.2, 2.2) of any one of claims 1 to 7, characterised in that at least one first opening (10) has, or a first subset of openings (10) have, a feed channel (12, 13) separate from at least one second opening (10) or second subset of openings (10).
  9. The sealing ledge holder (1.2, 2.2) of any one of claims 1 to 8, characterised in that the sealing ledge holder (1.2, 2.2) is made of two parts as seen in cross-section, wherein the first part is used to receive the sealing ledge (1.1, 2.1) and the second part is formed as a feed part (11) which has feed channels (12, 13) or forms the same with the first part of the sealing ledge holder (1.2, 2.2) on their shared contact line.
  10. The sealing ledge holder (1.2, 2.2) of claim 9, characterised in that the first part of the sealing ledge holder (1.2, 2.2) and the feed part (11) have recesses which, when the feed part (11) is mounted on the first part, abut one another and together form the feed channels (12, 13), wherein piping, in particular a spray pipe (1.5, 2.5), is preferably inserted in the feed channels (12, 13).
  11. The sealing ledge holder (1.2, 2.2) of any one of claims 1 to 10, characterised in that the sealing ledge holder (1.2, 2.2) has an area sloping towards the sealing ledge (1.1, 2.1) as seen on its front outer side that faces the roll shell (3) when used as intended in the suction roll.
  12. The sealing ledge holder (1.2, 2.2) of any one of claims 1 to 11, characterised in that a supply line (14) is mounted on one of the two end faces of the sealing ledge holder (1.2, 2.2) for the lubricant feed, or for each feed channel (12, 13) of the lubricant feed.
  13. The sealing ledge holder (1.2, 2.2) of claim 12, characterised in that each supply line (14) has a device for flow control or regulation, for example a valve (15).
  14. Use of a sealing ledge holder (1.2, 2.2) of claim 13, characterised in that a sealing ledge (1.1, 2.1), which has at least one temperature sensor for recording the sealing ledge temperature, is inserted in the sealing ledge holder (1.2, 2.2), wherein the device for flow control or regulation can be regulated depending on the sealing ledge temperature.
  15. The use of a sealing ledge holder (1.2, 2.2) of claim 14, characterised in that a sealing ledge (1.1, 2.1) is inserted in the sealing ledge holder (1.2, 2.2), wherein multiple temperature sensors spaced apart in the longitudinal direction of the sealing ledge (1.1, 2.1) are included in the sealing ledge (1.1, 2.1).
EP15781853.5A 2014-09-15 2015-09-14 Sealing-strip holder and use thereof Active EP3194656B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15781853T PL3194656T3 (en) 2014-09-15 2015-09-14 Sealing-strip holder and use thereof

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA50641/2014A AT516191B1 (en) 2014-09-15 2014-09-15 Sealing strip systems for suction rolls
ATA50655/2015A AT516210B1 (en) 2014-09-15 2015-07-24 Sealing strips holder
PCT/AT2015/050229 WO2016040975A1 (en) 2014-09-15 2015-09-14 Sealing-strip holder

Publications (2)

Publication Number Publication Date
EP3194656A1 EP3194656A1 (en) 2017-07-26
EP3194656B1 true EP3194656B1 (en) 2021-11-17

Family

ID=54337062

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15781852.7A Active EP3194655B1 (en) 2014-09-15 2015-09-14 Sealing strip system for a suction roll
EP15781853.5A Active EP3194656B1 (en) 2014-09-15 2015-09-14 Sealing-strip holder and use thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15781852.7A Active EP3194655B1 (en) 2014-09-15 2015-09-14 Sealing strip system for a suction roll

Country Status (7)

Country Link
US (2) US10184214B2 (en)
EP (2) EP3194655B1 (en)
CN (2) CN106715793A (en)
AT (2) AT516191B1 (en)
ES (2) ES2902858T3 (en)
PL (2) PL3194655T3 (en)
WO (2) WO2016040975A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT516191B1 (en) * 2014-09-15 2016-08-15 Röchling Leripa Papertech Gmbh & Co Kg Sealing strip systems for suction rolls
EP3619357A4 (en) * 2017-05-01 2020-11-04 Stowe Woodward Licensco LLC Suction roll seal strip monitor and lubrication water control system
DE202017104513U1 (en) 2017-07-28 2017-08-14 Voith Patent Gmbh roll arrangement
WO2019238482A1 (en) * 2018-06-11 2019-12-19 Voith Patent Gmbh Sealing strip for sealing a positive or negative pressure zone of a roller, roller comprising such a sealing strip, and method for operating the roller
CN111058328B (en) * 2018-10-16 2024-04-09 李飞 Vacuum roller of paper machine net press part
CN110375070B (en) * 2019-07-19 2021-10-29 苏州绿萃筑信息科技有限公司 Environment-friendly adhesive sealing strip
DE102019127850A1 (en) 2019-10-16 2021-04-22 Voith Patent Gmbh Sealing strip and sealing device
AT522782B1 (en) * 2019-12-19 2021-02-15 Roechling Leripa Papertech Gmbh & Co Kg Suction roll
JP7016100B2 (en) * 2020-02-04 2022-02-04 株式会社長谷川鉄工所 Sealing device for suction rolls
WO2022103609A1 (en) * 2020-11-10 2022-05-19 Stowe Woodward Licensco Llc Seal strip wear and temperature monitoring systems and assemblies therefor

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312519A (en) * 1939-06-10 1943-03-02 Beloit Iron Works Balanced seal for suction rolls
US2578551A (en) * 1948-03-05 1951-12-11 Beloit Iron Works Suction roll seal assembly
GB778779A (en) * 1954-02-04 1957-07-10 Bowaters Dev & Res Ltd Improvements in or relating to suction apparatus which is applicable to paper makingand like machines
DE1005825B (en) 1954-02-04 1957-04-04 Bowaters Dev And Res Ltd Suction device
US4359828A (en) * 1979-11-05 1982-11-23 Weyerhaeuser Company Vacuum box for use in high speed papermaking
US4714523A (en) * 1986-12-18 1987-12-22 Sawyer Jr William D Suction roll seal strips with teflon insert
FI100897B (en) * 1993-11-05 1998-03-13 Valmet Paper Machinery Inc Paper machine suction roll suction box sealing structure and method for suction roll sealing
DE29506620U1 (en) * 1995-04-19 1995-06-08 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Suction roll
US6241854B1 (en) * 1997-05-15 2001-06-05 Appleton International, Inc. Suction roll sealing strip
DE19811355A1 (en) 1998-03-16 1999-09-23 Voith Sulzer Papiertech Patent Sealing device
US6280573B1 (en) * 1998-08-12 2001-08-28 Kimberly-Clark Worldwide, Inc. Leakage control system for treatment of moving webs
DE19842838A1 (en) * 1998-09-18 2000-03-23 Voith Sulzer Papiertech Patent Sealing device and method for sealing pressure zones in a paper machine
SE513395C2 (en) * 1999-01-07 2000-09-11 Jocell Ab WEATHER sTRIP
DE10110946A1 (en) * 2001-03-07 2002-09-12 Voith Paper Patent Gmbh seal means
FI111279B (en) * 2001-09-17 2003-06-30 Metso Paper Inc Suction drum for a paper machine
AU2002350760A1 (en) * 2001-12-13 2003-07-15 Metso Paper, Inc. Wear indicator for a seal of a suction roll of a paper or board machine
DE10211792A1 (en) 2002-03-16 2003-10-02 Voith Paper Patent Gmbh sound emission
DE10214134A1 (en) * 2002-03-28 2003-10-09 Voith Paper Patent Gmbh seal means
DE10214132A1 (en) 2002-03-28 2003-10-09 Voith Paper Patent Gmbh seal means
JP3960974B2 (en) * 2003-02-17 2007-08-15 メッツォ ペーパー インコーポレイテッド Seal strip for suction roll and its manufacturing method
DE10322328A1 (en) * 2003-05-17 2004-12-23 Voith Paper Patent Gmbh roll sealing
DE10325686A1 (en) * 2003-06-06 2004-12-23 Voith Paper Patent Gmbh Paper industry suction or blowing drum has internal sealing strip with surface-mounted or embedded cooling tubes
US7144477B2 (en) * 2003-12-15 2006-12-05 Voith Paper Patent Gmbh Wear indicator for seal strip in a suction box of a paper machine
DE102004059028A1 (en) * 2004-12-08 2006-06-14 Voith Paper Patent Gmbh Sealing strip system for suction zone of suction roller, e.g. in a papermaking machine, including wear indicating system based on change in interaction between two sections on reaching specific wear level
DE102004062107A1 (en) * 2004-12-23 2006-07-13 Voith Paper Patent Gmbh Device for sealing an elevated or reduced pressure zone adjacent to a moving surface, e.g. for suction rolls or pocket ventilation rolls in paper machines, has sealing elements with automatically actuated adjusters
FI20055371A0 (en) * 2005-07-01 2005-07-01 Metso Paper Inc A molding tool for a material web machine
DE102005048054A1 (en) 2005-10-07 2007-04-12 Voith Patent Gmbh Sealing off a suction zone in a suction roll comprises pressing a stationary seal against the roller shell with a device that exerts a high pressure during evacuation and exerts a lower pressure after evacuation
DE102005052552A1 (en) * 2005-11-02 2007-05-03 Voith Patent Gmbh Suction roller for machine for processing fibrous sheets, e.g. of paper, has perforated, rotatable casing with pressing region sealable by sealing elements with holder, sealing strip and pressing spring
DE102007027688A1 (en) 2007-06-15 2008-12-24 Voith Patent Gmbh Sealing unit for sealing differential pressure zone bordering on moving surface in relation to environment in length-processing machine, has temperature measuring device for measuring temperature of sealing element
DE102011004055A1 (en) * 2011-02-14 2012-08-16 Voith Patent Gmbh seal means
DE102011076847A1 (en) * 2011-06-01 2012-12-06 Voith Patent Gmbh Sealing unit for sealing low pressure- or over pressure zone in paper-, tissue- or board machine, has sealing element that is laid opposite to movable surface, where gap between movable surface and sealing element is supplied with lubricant
DE102012213544A1 (en) * 2012-08-01 2014-02-06 Voith Patent Gmbh System for sealing suction box for use with roll sleeve of suction roller in machine for manufacturing or processing e.g. paper, has device for discharging lubricant such that lubricant is applied on approach-side to sealing strips
DE102012207692A1 (en) * 2012-05-09 2013-11-14 Voith Patent Gmbh System for sealing moved roller drum of suction roll of bordering suction box in machine for manufacturing e.g. paper, has sealing strips abutting sealingly against moving roll shell, where each sealing strip is provided with separate line
WO2013167656A1 (en) 2012-05-09 2013-11-14 Voith Patent Gmbh Sealing strip with an integrated lubricating water supply system
DE102012208795A1 (en) 2012-05-25 2013-11-28 Voith Patent Gmbh Sealing strip system
DE102012208811B3 (en) * 2012-05-25 2013-07-11 Voith Patent Gmbh Sealing strip system
EP2885456A1 (en) * 2012-08-15 2015-06-24 Voith Patent GmbH Sealing strip
EP2885457B1 (en) * 2012-08-15 2016-07-27 Voith Patent GmbH Roll and method for producing and/or processing a paper, cardboard or tissue web
BR112015003185B1 (en) 2012-08-15 2022-01-11 Voith Patent Gmbh VACUUM CYLINDER FOR A MACHINE INTENDED FOR THE MANUFACTURING AND/OR PROCESSING OF A ROLL OF PAPER, CARDBOARD OR TISSUE PAPER
WO2015007414A1 (en) * 2013-07-19 2015-01-22 Voith Patent Gmbh Sealing strip for a paper, paperboard or tissue machine, consisting of multiple materials
AT516191B1 (en) * 2014-09-15 2016-08-15 Röchling Leripa Papertech Gmbh & Co Kg Sealing strip systems for suction rolls
WO2016170042A1 (en) * 2015-04-23 2016-10-27 Voith Patent Gmbh Method and device for monitoring a wear structure, in particular a sealing structure

Also Published As

Publication number Publication date
AT516191B1 (en) 2016-08-15
CN106715792A (en) 2017-05-24
AT516191A1 (en) 2016-03-15
AT516210B1 (en) 2017-04-15
EP3194655A2 (en) 2017-07-26
AT516210A2 (en) 2016-03-15
AT516210A3 (en) 2016-06-15
WO2016040974A3 (en) 2016-05-12
WO2016040974A2 (en) 2016-03-24
CN106715793A (en) 2017-05-24
US10184214B2 (en) 2019-01-22
ES2902858T3 (en) 2022-03-30
WO2016040975A1 (en) 2016-03-24
US10179973B2 (en) 2019-01-15
US20170254019A1 (en) 2017-09-07
US20170254020A1 (en) 2017-09-07
PL3194655T3 (en) 2022-02-28
ES2902855T3 (en) 2022-03-30
CN106715792B (en) 2019-05-17
EP3194656A1 (en) 2017-07-26
EP3194655B1 (en) 2021-11-03
PL3194656T3 (en) 2022-03-07

Similar Documents

Publication Publication Date Title
EP3194656B1 (en) Sealing-strip holder and use thereof
EP2794136B1 (en) Method and device for cooling rolls
WO2011080226A2 (en) Controlling side guides of a metal strip
DE2919472C2 (en) Device for the continuous extrusion of tubular films with web width control
EP2519364B1 (en) Method of controlling the side guides of a metal strip
EP1303717B1 (en) Valve
EP3199041B1 (en) Suction belt unit with adjusting device for adjusting the distance between a pressing disc of the suction belt unit and a scraping element, as well as a method for this purpose
EP2435715B1 (en) Digital hydraulic controller
DE69608711T2 (en) Compressor shaft regulator for an extruder and process therefor
DE2657986C3 (en) Adjustment device for a sheet leveler to adjust the leveling gap
DE2439030A1 (en) Two stage hydraulic flow regulating valve - flow sensing valve located in output line provides feedback compensating signals for flapper auxiliary control pistons
DE19700347A1 (en) Roller mill grinding fine viscous materials including soap, printing ink and especially chocolate
DE2905199B2 (en) Device for regulating the negative pressure in a negative pressure line system, in particular for milking systems
EP2171395B1 (en) Film thickness sensor with a porous blower
EP2931492A1 (en) Extrusion blow molding method and device for the performance thereof
WO2011110665A1 (en) Device for precisely controlling negative pressure
WO2013110463A1 (en) Device and method for metering sealing compound plasticated in an extruder
DE102007052934A1 (en) Continuous flow water heater, has safety temperature limiter comprising temperature transmitter that is arranged completely outside channel and lies at side wall of housing, where side wall limits flow channel
EP3251754A1 (en) Metering device and method
AT412626B (en) MONITORING DEVICE FOR A FORMING SYSTEM
DE202004004976U1 (en) Control device for free cross-sectional surface of nozzle e.g. for supplying granular and powdery bulk materials, has leading straight edge fixed mechanically with nozzle core and with one flank inclined relative to axial direction
EP1764667A2 (en) Valve for reducing the pressure in a fluid line
DE2039943A1 (en) Hydraulic circuit
EP3307448A1 (en) Method and device for controlling a parameter of a rolled stock
DD263496A1 (en) DEVICE FOR FIXING THE POSITION OF HYDRAULICALLY ACTUATED PRESSURE RANGE OF BRICKET TRACK PRESSES

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170404

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROECHLING INDUSTRIAL OEPPING GMBH & CO. KG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210608

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015015417

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1448147

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211215

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20211117

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2902855

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20220330

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220217

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220317

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220317

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220217

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015015417

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20220818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20220912

Year of fee payment: 8

Ref country code: GB

Payment date: 20220920

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20220920

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220930

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220914

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220930

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20230809

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230920

Year of fee payment: 9

Ref country code: PL

Payment date: 20230901

Year of fee payment: 9

Ref country code: FR

Payment date: 20230928

Year of fee payment: 9

Ref country code: DE

Payment date: 20230920

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20231124

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230927

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230930

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230930