EP3500378B1 - Scraper device for a rolling stand - Google Patents
Scraper device for a rolling stand Download PDFInfo
- Publication number
- EP3500378B1 EP3500378B1 EP17737289.3A EP17737289A EP3500378B1 EP 3500378 B1 EP3500378 B1 EP 3500378B1 EP 17737289 A EP17737289 A EP 17737289A EP 3500378 B1 EP3500378 B1 EP 3500378B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- main body
- stripper
- roll
- wiper
- stripping device
- 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
Links
- 238000005096 rolling process Methods 0.000 title description 19
- 238000003825 pressing Methods 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims 2
- 239000011151 fibre-reinforced plastic Substances 0.000 claims 2
- 239000010410 layer Substances 0.000 description 32
- 230000000694 effects Effects 0.000 description 16
- 238000007789 sealing Methods 0.000 description 12
- 239000000110 cooling liquid Substances 0.000 description 10
- 239000000314 lubricant Substances 0.000 description 7
- 239000004033 plastic Substances 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally
Definitions
- the invention relates to a stripping device for a roll stand.
- Roll stands for rolling rolling stock have rolls that are cooled with a cooling liquid, usually with cooling water.
- a cooling liquid usually with cooling water.
- stripping devices are used, through which the cooling liquid is wiped off the roll surfaces of the rolls.
- CN 204448819 U discloses a stripper plate for a hot rolling mill.
- the stripping plate is composed of a layer of felt, a support plate made of iron and a base plate, these components of the stripping plate being connected to one another by screws.
- the generic JP 2016 107303 A discloses a scraper for stripping cooling water from a roll in a steel mill.
- the scraper has an abrasive plate for abrading the roll surface.
- abrasive grains are evenly distributed in a non-woven fabric.
- a water-wiping material for wiping off cooling water is laminated on one surface of the abrasive plate.
- the stripping device enables, on the one hand, a significant reduction in the weight of the body by manufacturing the base body from a fiber-plastic composite
- the construction of the scraper from a base body and a felt layer also makes it possible to use both the base body and the felt layer as seals for wiping off and discharging cooling liquid from the roll surface, which is applied to a roll surface of the roll to cool a roll of the roll stand. This prevents too much cooling liquid from getting from the roll surface onto the rolling stock and / or into a roll gap between two rolls of the roll stand and, in particular, the effect of the lubricant applied there to lubricate the contact of the roll with the rolling stock, for example by washing or thinning of the lubricant.
- Another embodiment of the invention provides that the felt layer is glued to the upper side of the base body, for example by means of a two-component epoxy resin adhesive is. This embodiment of the invention advantageously prevents a displacement of the felt layer relative to the base body.
- FIG. 1 shows schematically a roll stand 1 for rolling a rolling stock 3.
- the roll stand 1 comprises two rolls 5, 6 designed as work rolls and a stripping device 7 and a pressure device 9 for at least one roll 5.
- the rolls 5, 6 are spaced apart from one another by a roll gap 11, through which the rolling stock 3 is passed in a rolling direction 13 in order to reshape the rolling stock 3, for example to reduce its thickness.
- the base body 19 is made of a fiber-plastic composite, which preferably has a heat resistance up to an upper use temperature above at least 80 ° C, preferably above 120 ° C, and a high Has dimensional stability.
- the fiber-plastic composite is a composite of glass filament fabric and epoxy resin.
- the base body 19 has a base body underside 23, which rests against the stripper carrier 15, and a base body upper side 25, on which the felt layer 21 is arranged. Furthermore, the base body 19 has a base body front side 27 which is angled from the base body underside 23 at an acute angle 29 towards the base body top 25.
- the base body front side 27 rests against a roller surface 45 of the roller 5. Furthermore, a felt layer front side 47 of the felt layer 21 facing the roller 5 rests against the roller surface 45 when the stripper 17 is pressed against the roller 5 and is compressed when pressed.
- the base body front side 27 acts as a seal for wiping off and draining cooling liquid, which is applied to the roller surface 45 to cool the roller 5, from the roller surface 45 the roll surface 45 reaches the rolling stock 3 and / or in the roll gap 11 and in particular the effect of the lubricant applied there for lubricating the contact of the roll 5 with the rolling stock 3, for example by washing off and diluting the lubricant, is reduced.
- FIGS. 2 and 3 show a scraper 17 of a second exemplary embodiment of a scraper device 7
- Figure 2 a plan view of an end portion of the scraper 17
- Figure 3 shows a sectional view of the scraper 17 in a sectional plane III.
- the one in the Figures 2 and 3 shown wiper 17 differs from that in Figure 1
- Components (not shown) of the wiper device 7 having the wiper 17 correspond to the corresponding components of the in FIG Figure 1 shown stripping device 7.
- the wiper rear side 37 of the wiper 17 has wiper recesses 35, each of which extends from the base body underside 23 to an opposite of the base body underside 23
- Each wiper recess 35 projects from the wiper rear side 37 into the wiper 17 approximately up to half the distance between the wiper rear side 37 and the main body front side 27.
- By one of the base body front side 27 facing end of each stripper recess 35 is in the Figures 2 and 3 connecting element 33, not shown (see also Figure 1 ) to the wiper support 15 for connecting the wiper support 15 to the wiper 17.
- the connecting elements 33 for separating the wiper 17 from the wiper carrier 15 advantageously do not need to be removed, but only the connections between the connecting elements 33 and the wiper carrier 15 have to be loosened in order to be able to pull the wiper 17 off the wiper carrier 15.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Cleaning In General (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
Die Erfindung betrifft eine Abstreifvorrichtung für ein Walzgerüst.The invention relates to a stripping device for a roll stand.
Walzgerüste zum Walzen von Walzgut weisen Walzen auf, die mit einer Kühlflüssigkeit, in der Regel mit Kühlwasser, gekühlt werden. Um zu verhindern, dass zu viel Kühlflüssigkeit auf das Walzgut und/oder in einen Walzspalt, durch den das Walzgut zwischen zwei Walzen geführt wird, gelangt, werden Abstreifvorrichtungen eingesetzt, durch die Kühlflüssigkeit von den Walzenoberflächen der Walzen abgestreift wird.Roll stands for rolling rolling stock have rolls that are cooled with a cooling liquid, usually with cooling water. In order to prevent too much cooling liquid from getting onto the rolling stock and / or into a roll gap through which the rolling stock is guided between two rolls, stripping devices are used, through which the cooling liquid is wiped off the roll surfaces of the rolls.
Die gattungsbildende
Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Abstreifvorrichtung für ein Walzgerüst anzugeben.The invention is based on the object of specifying an improved stripping device for a roll stand.
Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.The object is achieved according to the invention by the features of
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the subclaims.
Eine erfindungsgemäße Abstreifvorrichtung für ein Walzgerüst umfasst einen Abstreiferträger und einen an dem Abstreiferträger angeordneten Abstreifer. Der Abstreifer umfasst einen aus einem Faser-Kunststoff-Verbund gefertigten Grundkörper mit einer Grundkörperunterseite, die an dem Abstreiferträger anliegt, und eine Filzschicht, die an einer der Grundkörperunterseite gegenüberliegenden Grundkörperoberseite des Grundkörpers angeordnet ist.A wiper device according to the invention for a roll stand comprises a wiper carrier and a wiper arranged on the wiper carrier. The wiper comprises a base body made of a fiber-plastic composite with a base body underside which rests against the wiper support and a felt layer which is arranged on a base body top side of the base body opposite the base body underside.
Die Abstreifvorrichtung ermöglicht einerseits durch die Fertigung des Grundkörpers aus einem Faser-Kunststoff-Verbund eine deutliche Reduzierung des Gewichts derThe stripping device enables, on the one hand, a significant reduction in the weight of the body by manufacturing the base body from a fiber-plastic composite
Abstreifvorrichtung gegenüber Abstreifvorrichtungen mit metallischen Komponenten und damit eine vereinfachte Bewegung und Auswechselbarkeit der Abstreifvorrichtung.Stripping device versus stripping devices with metallic components and thus a simplified movement and exchangeability of the stripping device.
Der Aufbau des Abstreifers aus einem Grundkörper und einer Filzschicht ermöglicht außerdem, sowohl den Grundkörper als auch die Filzschicht als Dichtungen zum Abstreifen und Ableiten von Kühlflüssigkeit, die zur Kühlung einer Walze des Walzgerüsts auf eine Walzenoberfläche der Walze aufgebracht wird, von der Walzenoberfläche zu nutzen. Dadurch kann verhindert werden, dass zu viel Kühlflüssigkeit von der Walzenoberfläche auf das Walzgut und/oder in einen Walzspalt zwischen zwei Walzen des Walzgerüsts gelangt und insbesondere die Wirkung von dort aufgebrachtem Schmiermittel zur Schmierung des Kontakts der Walze mit dem Walzgut, beispielsweise durch Abwaschen oder Verdünnen des Schmiermittels, reduziert.The construction of the scraper from a base body and a felt layer also makes it possible to use both the base body and the felt layer as seals for wiping off and discharging cooling liquid from the roll surface, which is applied to a roll surface of the roll to cool a roll of the roll stand. This prevents too much cooling liquid from getting from the roll surface onto the rolling stock and / or into a roll gap between two rolls of the roll stand and, in particular, the effect of the lubricant applied there to lubricate the contact of the roll with the rolling stock, for example by washing or thinning of the lubricant.
Die Saugwirkung der Filzschicht unterstützt deren Dichtwirkung und kühlt den Abstreifer durch Aufnahme von Kühlflüssigkeit in der Filzschicht zudem vorteilhaft. Ferner gleicht die Filzschicht durch ihre Flexibilität und Elastizität Radiusschwankungen der Walze entlang deren Breite und Umfang sowie Fertigungstoleranzen der Grundkörperfrontseite aus, die die Dichtwirkung der Grundkörperfrontseite reduzieren.The suction effect of the felt layer supports its sealing effect and also advantageously cools the scraper by absorbing cooling liquid in the felt layer. Furthermore, thanks to its flexibility and elasticity, the felt layer compensates for fluctuations in the radius of the roller along its width and circumference, as well as manufacturing tolerances on the front of the base body, which reduce the sealing effect of the front of the base body.
Eine Ausgestaltung der Erfindung sieht vor, dass der Grundkörper eine Grundkörperfrontseite aufweist, die von der Grundkörperunterseite in einem Anstellwinkel zu der Grundkörperoberseite hin abgewinkelt ist. Diese Ausgestaltung der Erfindung ermöglicht vorteilhaft, die Grundkörperfrontseite zur Kontaktierung der Walze mit einer möglichst großen Kontaktoberfläche zu verwenden.One embodiment of the invention provides that the base body has a base body front side which is angled from the base body underside at an angle of attack towards the base body top side. This embodiment of the invention advantageously enables the base body front side to be used for contacting the roller with the largest possible contact surface.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass die Filzschicht mit der Grundkörperoberseite, beispielsweise durch einen Zweikomponenten-Epoxidharzklebstoff, verklebt ist. Diese Ausgestaltung der Erfindung verhindert vorteilhaft eine Verschiebung der Filzschicht gegenüber dem Grundkörper.Another embodiment of the invention provides that the felt layer is glued to the upper side of the base body, for example by means of a two-component epoxy resin adhesive is. This embodiment of the invention advantageously prevents a displacement of the felt layer relative to the base body.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass eine der Grundkörperfrontseite gegenüberliegende Abstreiferrückseite des Abstreifers Abstreiferausnehmungen aufweist, die sich jeweils von der Grundkörperunterseite zu einer der Grundkörperunterseite gegenüberliegenden Abstreiferoberseite des Abstreifers erstrecken, und dass der Abstreiferträger mit dem Abstreifer durch Verbindungselemente verbunden ist, die jeweils durch eine Abstreiferausnehmung geführt und mit dem Abstreiferträger verbunden sind. Die Verbindungselemente sind beispielsweise Schrauben oder Stifte. Gemäß dieser Ausgestaltung der Erfindung brauchen die Verbindungselemente zum Trennen des Abstreifers von dem Abstreiferträger vorteilhaft nicht entfernt werden, sondern es müssen nur die Verbindungen der Verbindungselemente mit dem Abstreiferträger gelockert werden, um den Abstreifer von dem Abstreiferträger abziehen zu können. Dies erleichtert vorteilhaft einen Austausch des Abstreifers, beispielsweise im Falle eines Defekts oder Verschleißes des Abstreifers.A further embodiment of the invention provides that a wiper rear side of the wiper opposite the base body front side has wiper recesses which each extend from the base body underside to a wiper upper side of the wiper opposite the base body underside, and that the wiper carrier is connected to the wiper by connecting elements that are each connected by a wiper recess are guided and connected to the wiper carrier. The connecting elements are, for example, screws or pins. According to this embodiment of the invention, the connecting elements for separating the wiper from the wiper carrier advantageously do not need to be removed, but only the connections between the connecting elements and the wiper carrier have to be loosened in order to be able to pull the wiper off the wiper carrier. This advantageously makes it easier to replace the wiper, for example in the event of a defect or wear of the wiper.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass der Faser-Kunststoff-Verbund ein Verbund aus Glasfilamentgewebe und Epoxidharz ist. Ein Verbund aus Glasfilamentgewebe und Epoxidharz ermöglicht vorteilhaft eine hohe Hitzebeständigkeit, eine hohe Formstabilität und eine hohe Dichtwirkung des Grundkörpers.Another embodiment of the invention provides that the fiber-plastic composite is a composite of glass filament fabric and epoxy resin. A composite of glass filament fabric and epoxy resin advantageously enables high heat resistance, high dimensional stability and a high sealing effect of the base body.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass die Filzschicht eine Rohdichte von wenigstens 320 kg/m3, vorzugsweise mehr als 520 kg/m3, aufweist. Dadurch weist die Filzschicht vorteilhaft eine ausreichende Filzhärte auf, um eine erhöhte Beständigkeit gegen mechanischen Verschleiß durch den Kontakt mit der drehenden Walze des Walzgerüsts zu erreichen.Another embodiment of the invention provides that the felt layer has a bulk density of at least 320 kg / m 3 , preferably more than 520 kg / m 3 . As a result, the felt layer advantageously has sufficient felt hardness in order to achieve increased resistance to mechanical wear due to contact with the rotating roller of the roll stand.
Ein erfindungsgemäßes Walzgerüst umfasst eine Walze, eine erfindungsgemäße Abstreifvorrichtung und eine Andrückvorrichtung zum Andrücken einer Grundkörperfrontseite des Grundkörpers an eine Walzenoberfläche der Walze. Die Vorteile eines derartigen Walzgerüsts ergeben sich aus den oben genannten Vorteilen einer erfindungsgemäßen Abstreifvorrichtung.A roll stand according to the invention comprises a roller, a stripping device according to the invention and a pressing device for pressing a base body front side of the base body against a roller surface of the roller. The advantages of such a roll stand result from the above-mentioned advantages of a stripping device according to the invention.
Eine Ausgestaltung der Erfindung sieht vor, dass die Filzschicht eine der Walze zugewandte Filzschichtfrontseite aufweist, die beim Andrücken der Grundkörperfrontseite an die Walzenoberfläche an der Walzenoberfläche anliegt. Da die Filzschichtfrontseite sofort nach dem Andrücken des Abstreifers an der Walzenoberfläche anliegt, erhöht die Filzschicht insbesondere zu Beginn des Andrückens, wenn die Dichtwirkung der Grundkörperfrontseite noch nicht ausreichend ist, die Dichtwirkung des Abstreifers, so dass keine Anlaufzeit zur Erzielung einer ausreichenden Dichtwirkung des Abstreifers erforderlich ist. Dadurch kann vorteilhaft Produktionszeit mit guter Schmierwirkung eines Schmiermittels zur Schmierung des Kontakts der Walze mit dem Walzgut erhöht werden, bzw. die Kühlflüssigkeit kann bereits beim Anwalzen zu Beginn oder nach einer Unterbrechung des Walzprozesses vom Walzgut ferngehalten werden.One embodiment of the invention provides that the felt layer has a felt layer front side facing the roller, which when the base body front side is pressed against the roller surface on the roller surface. Since the front side of the felt layer rests against the roller surface immediately after the scraper is pressed, the layer of felt increases the sealing effect of the wiper, especially at the beginning of the pressing process, when the sealing effect of the front side of the base body is not sufficient, so that no start-up time is required to achieve a sufficient sealing effect of the wiper is. This can advantageously increase production time with a good lubricant effect of a lubricant for lubricating the contact of the roll with the rolling stock, or the cooling liquid can be kept away from the rolling stock during rolling at the beginning or after an interruption of the rolling process.
Weitere Ausgestaltungen der Erfindung sehen vor, dass die Andrückvorrichtung einen schwenkbar gelagerten Schwenkarm zum Heranfahren der Abstreifvorrichtung an die Walze und/oder einen hydraulischen oder pneumatischen Antrieb zum Andrücken der Grundkörperfrontseite an die Walzenoberfläche aufweist. Diese Ausgestaltungen der Erfindung ermöglichen vorteilhaft ein kontrolliertes und steuerbares Andrücken des Abstreifers an die Walze.Further refinements of the invention provide that the pressing device has a pivotably mounted swivel arm for moving the stripping device up to the roller and / or a hydraulic or pneumatic drive for pressing the front of the base body against the roller surface. These embodiments of the invention advantageously enable a controlled and controllable pressing of the scraper against the roller.
Die oben beschriebenen Eigenschaften, Merkmale und Vorteile dieser Erfindung sowie die Art und Weise, wie diese erreicht werden, werden klarer und deutlicher verständlich im Zusammenhang mit der folgenden Beschreibung vonThe above-described properties, features, and advantages of this invention, and the manner in which they are achieved, will become more clearly understood in connection with the following description of FIG
Ausführungsbeispielen, die im Zusammenhang mit den Zeichnungen näher erläutert werden. Dabei zeigen:
-
FIG 1 schematisch ein Walzgerüst mit einer Walze, einem ersten Ausführungsbeispiel einer Abstreifvorrichtung und einer Andrückvorrichtung, -
FIG 2 eine Draufsicht auf einen Abstreifer eines zweiten Ausführungsbeispiels einer Abstreifvorrichtung, -
FIG 3 eine Schnittdarstellung des inFigur 2 dargestellten Abstreifers, und -
FIG 4 eine Seitenansicht des in denFiguren 2 und 3 dargestellten Abstreifers und einer Walze eines Walzgerüsts, an der der Abstreifer anliegt.
-
FIG 1 schematically a roll stand with a roll, a first embodiment of a stripping device and a pressing device, -
FIG 2 a plan view of a wiper of a second embodiment of a wiper device, -
FIG 3 a sectional view of the inFigure 2 shown wiper, and -
FIG 4 a side view of the in theFigures 2 and 3 shown scraper and a roll of a roll stand on which the scraper rests.
Einander entsprechende Teile sind in allen Figuren mit denselben Bezugszeichen versehen.Corresponding parts are provided with the same reference symbols in all figures.
Die Abstreifvorrichtung 7 umfasst einen Abstreiferträger 15 und einen an dem Abstreiferträger 15 angeordneten Abstreifer 17. Der Abstreifer 17 umfasst einen Grundkörper 19 und eine Filzschicht 21.The
Der Grundkörper 19 ist aus einem Faser-Kunststoff-Verbund gefertigt, der vorzugsweise eine Hitzebeständigkeit bis zu einer oberen Gebrauchstemperatur oberhalb von mindestens 80°C, vorzugsweise oberhalb von 120°C, und eine hohe Formstabilität aufweist. Beispielsweise ist der Faser-Kunststoff-Verbund ein Verbund aus Glasfilamentgewebe und Epoxidharz. Der Grundkörper 19 weist eine Grundkörperunterseite 23, die an dem Abstreiferträger 15 anliegt, und eine Grundkörperoberseite 25, an der die Filzschicht 21 angeordnet ist, auf. Ferner weist der Grundkörper 19 eine Grundkörperfrontseite 27 auf, die von der Grundkörperunterseite 23 in einem spitzen Anstellwinkel 29 zu der Grundkörperoberseite 25 hin abgewinkelt ist.The
Die Filzschicht 21 ist mit der Grundkörperoberseite 25 durch eine Verklebungsschicht 31, die beispielsweise durch einen Zweikomponenten-Epoxidharzklebstoff gebildet wird, verklebt. Die Filzschicht 21 ist beispielsweise aus einem Industriefilz gefertigt und weist vorzugsweise mindestens eine Filzhärte F1, vorzugsweise mindestens H2, nach DIN 61200 bzw. eine Rohdichte von wenigstens 320 kg/m3, vorzugsweise von mehr als 520 kg/m3, auf. Die Filzschicht 21 bedeckt die Grundkörperoberseite 25 vollständig.The
Der Abstreiferträger 15 ist mit dem Abstreifer 17 durch Verbindungselemente 33 verbunden, die jeweils durch eine in
Die Andrückvorrichtung 9 weist einen um eine Schwenkachse 39 schwenkbar gelagerten Schwenkarm 41 zum Heranfahren der Abstreifvorrichtung 7 an die Walze 5 und einen hydraulischen oder pneumatischen Antrieb 43 zum Andrücken des Abstreifers 17 an die Walze 5 auf. Der Schwenkarm 41 ist starr mit dem Abstreiferträger 15 verbunden und durch den Antrieb 43 schwenkbar.The
Beim Andrücken des Abstreifers 17 an die Walze 5 liegt die Grundkörperfrontseite 27 an einer Walzenoberfläche 45 der Walze 5 an. Ferner liegt eine der Walze 5 zugewandte Filzschichtfrontseite 47 der Filzschicht 21 beim Andrücken des Abstreifers 17 an die Walze 5 an der Walzenoberfläche 45 an und wird beim Andrücken zusammengedrückt.When the
Der Abstreifer 17 erstreckt sich über wenigstens einen Teil der Breite der Walze 5 parallel zu einer Walzendrehachse 49 der Walze 5, d. h. senkrecht zu der Zeichenebene der
Durch das Andrücken der Grundkörperfrontseite 27 an die Walzenoberfläche 45 wirkt die Grundkörperfrontseite 27 als Dichtung zum Abstreifen und Ableiten von Kühlflüssigkeit, die zur Kühlung der Walze 5 auf die Walzenoberfläche 45 aufgebracht wird, von der Walzenoberfläche 45. Dadurch wird verhindert, dass zu viel Kühlflüssigkeit von der Walzenoberfläche 45 auf das Walzgut 3 und/oder in den Walzspalt 11 gelangt und insbesondere die Wirkung von dort aufgebrachtem Schmiermittel zur Schmierung des Kontakts der Walze 5 mit dem Walzgut 3, beispielsweise durch Abwaschen und Verdünnen des Schmiermittels, reduziert.By pressing the base
Die an der Walzenoberfläche 45 anliegende Filzschichtfrontseite 47 wirkt dabei als zusätzliche Dichtung zum Abstreifen und Ableiten von Kühlflüssigkeit von der Walzenoberfläche 45. Da die Filzschichtfrontseite 47 sofort nach dem Andrücken des Abstreifers 17 an der Walzenoberfläche 45 anliegt, erhöht die Filzschicht 21 insbesondere zu Beginn des Andrückens, wenn die Dichtwirkung der Grundkörperfrontseite 27 noch nicht ausreichend ist, die Dichtwirkung des Abstreifers 17, so dass keine Anlaufzeit zur Erzielung einer ausreichenden Dichtwirkung des Abstreifers 17 erforderlich ist.The felt
Die Saugwirkung der Filzschicht 21 unterstützt deren Dichtwirkung und kühlt den Abstreifer 17 durch Aufnahme von Kühlflüssigkeit in der Filzschicht 21 zudem vorteilhaft. Ferner gleicht die Filzschicht 21 durch ihre Flexibilität und Elastizität Radiusschwankungen der Walze 5 entlang deren Breite und Umfang sowie Fertigungstoleranzen der Grundkörperfrontseite 27 aus, die die Dichtwirkung der Grundkörperfrontseite 27 reduzieren.The suction effect of the felt
Die
Der in den
Die Abstreiferrückseite 37 des Abstreifers 17 weist Abstreiferausnehmungen 35 auf, die sich jeweils von der Grundkörperunterseite 23 zu einer der Grundkörperunterseite 23 gegenüberliegenden Abstreiferoberseite 51 des Abstreifers 17, die eine von dem Grundkörper 19 abgewandte Oberfläche der Filzschicht 21 ist, erstrecken und nebeneinander über die Abstreiferlänge des Abstreifers 17 angeordnet sind. Jede Abstreiferausnehmung 35 ragt von der Abstreiferrückseite 37 etwa bis zur Hälfte des Abstands zwischen der Abstreiferrückseite 37 und der Grundkörperfrontseite 27 in den Abstreifer 17 hinein. Durch ein der Grundkörperfrontseite 27 zugewandtes Ende jeder Abstreiferausnehmung 35 ist ein in den
Obwohl die Erfindung im Detail durch bevorzugte Ausführungsbeispiele näher illustriert und beschrieben wurde, so ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen können vom Fachmann hieraus abgeleitet werden, ohne den Schutzumfang der Erfindung zu verlassen.Although the invention has been illustrated and described in more detail by means of preferred exemplary embodiments, the invention is not restricted by the disclosed examples and other variations can be derived from them by the person skilled in the art without departing from the scope of protection of the invention.
Claims (12)
- Stripping device (7) for a roll stand (1), the stripping device (7) comprising a stripper carrier (15) and a stripper (17) arranged on the stripper carrier (15), the stripper (17) comprising- a main body (19) having a main body bottom side (23), which rests against the stripper carrier (15), and- a felt layer (21), which is arranged on a main body top side (25) of the main body (19) situated opposite the main body bottom side (23),characterized in that- the main body (19) is manufactured from a fiber-reinforced plastic- and a stripper rear side (37) of the stripper (17) situated opposite the main body front side (27) has stripper recesses (35), which each extend from the main body bottom side (23) to a stripper top side (51) of the stripper (17) situated opposite the main body bottom side (23), and in that the stripper carrier (15) is connected to the stripper (17) by connecting elements (33), which are each guided by a stripper recess (35) and are connected to the stripper carrier (15).
- Stripping device (7) according to Claim 1,
characterized in that the main body (19) has a main body front side (27) which is angled from the main body bottom side (23) toward the main body top side (25) at an angle of incidence (29) . - Stripping device (7) according to one of the preceding claims, characterized in that the felt layer (21) is adhesively bonded to the main body top side (25).
- Stripping device (7) according to Claim 3,
characterized in that the felt layer (21) is adhesively bonded to the main body top side (25) by a two-component epoxy resin adhesive. - Stripping device (7) according to one of the preceding claims, characterized in that the connecting elements (33) are screws.
- Stripping device (7) according to one of Claims 1 to 4, characterized in that the connecting elements (33) are pins.
- Stripping device (7) according to one of the preceding claims, characterized in that the fiber-reinforced plastic is a composite of glass filament fabric and epoxy resin.
- Stripping device (7) according to one of the preceding claims, characterized in that the felt layer (21) has a bulk density of at least 320 kg/m3.
- Roll stand (1) comprising a roll (5, 6), a stripping device (7) according to one of the preceding claims and a contact pressure device (9) for pressing a main body front side (27) of the main body (19) against a roll surface (45) of the roll (5, 6) .
- Roll stand (1) according to Claim 9,
characterized in that the felt layer (21) has a felt layer front side (47), which faces the roll (5, 6) and which rests against the roll surface (45) when the main body front side (27) is pressed against the roll surface (45). - Roll stand (1) according to Claim 9 or 10,
characterized in that the contact pressure device (9) has a pivotably mounted pivot arm (41) for moving the stripping device (7) up to the roll (5, 6). - Roll stand (1) according to one of Claims 9 to 11,
characterized in that the contact pressure device (9) has a hydraulic or pneumatic drive (43) for pressing the main body front side (27) against the roll surface (45).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16184722.3A EP3284545A1 (en) | 2016-08-18 | 2016-08-18 | Scraper device for a rolling stand |
PCT/EP2017/067666 WO2018033305A1 (en) | 2016-08-18 | 2017-07-13 | Stripping device for a roll stand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3500378A1 EP3500378A1 (en) | 2019-06-26 |
EP3500378B1 true EP3500378B1 (en) | 2020-09-02 |
Family
ID=56738035
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16184722.3A Withdrawn EP3284545A1 (en) | 2016-08-18 | 2016-08-18 | Scraper device for a rolling stand |
EP17737289.3A Active EP3500378B1 (en) | 2016-08-18 | 2017-07-13 | Scraper device for a rolling stand |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16184722.3A Withdrawn EP3284545A1 (en) | 2016-08-18 | 2016-08-18 | Scraper device for a rolling stand |
Country Status (7)
Country | Link |
---|---|
US (1) | US11370008B2 (en) |
EP (2) | EP3284545A1 (en) |
JP (1) | JP6716784B2 (en) |
CN (1) | CN109562422B (en) |
MX (1) | MX2018015541A (en) |
RU (1) | RU2711703C1 (en) |
WO (1) | WO2018033305A1 (en) |
Family Cites Families (24)
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SU772623A1 (en) * | 1978-11-09 | 1980-10-23 | Ждановский металлургический институт | Apparatus for applying technological lubricant on rolling mill rolls |
JPS55177901U (en) * | 1979-06-01 | 1980-12-20 | ||
CH659088A5 (en) * | 1983-06-20 | 1986-12-31 | Galipag | SCRAPER FOR THE CYLINDER OF TEXTILE MACHINES. |
SU1301499A1 (en) | 1985-03-12 | 1987-04-07 | Ждановский металлургический институт | Arrangement for cleaning and lubricating working surface of rolling mill roll |
JPH05154517A (en) * | 1991-11-29 | 1993-06-22 | Kawasaki Steel Corp | On-line wiper device for rolling roll |
JP3008286U (en) * | 1994-08-26 | 1995-03-07 | 株式会社フジコー | Draining wiper for rolling mill |
JP3335495B2 (en) * | 1995-02-09 | 2002-10-15 | 川崎製鉄株式会社 | Drainer for rolling mill roll |
JP3008286B1 (en) | 1999-01-08 | 2000-02-14 | 日立化成ポリマー株式会社 | Modified silicone sealant for construction |
CN2400196Y (en) | 1999-10-29 | 2000-10-11 | 上海宝钢集团公司 | Wiper for finishing mill with lubrication function |
DE10049032A1 (en) | 2000-10-04 | 2002-05-02 | Sms Demag Ag | Roll stand with support and / or work rolls for rolling sheets or strips |
RU57156U1 (en) | 2006-03-06 | 2006-10-10 | Открытое акционерное общество "Новолипецкий металлургический комбинат" (ОАО "НЛМК") | ROLLER SURFACE CLEANING DEVICE |
DE102006049161A1 (en) | 2006-10-18 | 2008-04-24 | Sms Demag Ag | Roll stand with support and / or work rolls for rolling sheets or strips |
WO2008124914A1 (en) * | 2007-04-12 | 2008-10-23 | Superior Industrial Services | Roll cleaning apparatus and method |
AT505392B1 (en) * | 2007-09-12 | 2009-01-15 | Siemens Vai Metals Tech Gmbh | METHOD AND DEVICE FOR CLEANING THE COAT OF A ROLLER OR ROLL |
CN201172061Y (en) | 2008-03-31 | 2008-12-31 | 宝山钢铁股份有限公司 | Combined type water-draining plate for roller |
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DE102010028609B4 (en) | 2010-05-05 | 2014-03-27 | Achenbach Buschhütten GmbH & Co. KG | Method and device for removing coolant and / or lubricant from rolls of a roll stand |
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2016
- 2016-08-18 EP EP16184722.3A patent/EP3284545A1/en not_active Withdrawn
-
2017
- 2017-07-13 WO PCT/EP2017/067666 patent/WO2018033305A1/en unknown
- 2017-07-13 RU RU2019104282A patent/RU2711703C1/en active
- 2017-07-13 CN CN201780050550.6A patent/CN109562422B/en active Active
- 2017-07-13 US US16/320,542 patent/US11370008B2/en active Active
- 2017-07-13 MX MX2018015541A patent/MX2018015541A/en unknown
- 2017-07-13 EP EP17737289.3A patent/EP3500378B1/en active Active
- 2017-07-13 JP JP2019508258A patent/JP6716784B2/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
RU2711703C1 (en) | 2020-01-21 |
MX2018015541A (en) | 2019-06-06 |
US11370008B2 (en) | 2022-06-28 |
JP6716784B2 (en) | 2020-07-01 |
US20190240709A1 (en) | 2019-08-08 |
JP2019524452A (en) | 2019-09-05 |
CN109562422A (en) | 2019-04-02 |
EP3284545A1 (en) | 2018-02-21 |
CN109562422B (en) | 2020-09-15 |
WO2018033305A1 (en) | 2018-02-22 |
EP3500378A1 (en) | 2019-06-26 |
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