EP2169114A1 - Scraping apparatus for the paper industry - Google Patents
Scraping apparatus for the paper industry Download PDFInfo
- Publication number
- EP2169114A1 EP2169114A1 EP08736714A EP08736714A EP2169114A1 EP 2169114 A1 EP2169114 A1 EP 2169114A1 EP 08736714 A EP08736714 A EP 08736714A EP 08736714 A EP08736714 A EP 08736714A EP 2169114 A1 EP2169114 A1 EP 2169114A1
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- EP
- European Patent Office
- Prior art keywords
- paper industry
- armature
- magnetic
- plate
- pivot axis
- 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.)
- Granted
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- 238000007790 scraping Methods 0.000 title claims abstract description 14
- 230000005291 magnetic effect Effects 0.000 claims abstract description 66
- 230000009471 action Effects 0.000 claims abstract description 17
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 6
- 230000003213 activating effect Effects 0.000 claims description 5
- 230000009849 deactivation Effects 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 230000021615 conjugation Effects 0.000 claims 1
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 230000000284 resting effect Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 26
- 238000003780 insertion Methods 0.000 description 23
- 230000037431 insertion Effects 0.000 description 23
- 238000003032 molecular docking Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241001080024 Telles Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 208000031968 Cadaver Diseases 0.000 description 1
- 241000135309 Processus Species 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G3/00—Doctors
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G3/00—Doctors
- D21G3/005—Doctor knifes
Definitions
- the invention relates to a scraping apparatus for the paper industry, those which comprise a scraper sheet, a scraper sheet support with a pivot axis with respect to a plate, said plateau-plate being supported on the armature of the device.
- the object of the invention refers to solutions for the extraction, insertion and docking of a wallet on the armature of a doctor, when the access of the lateral edges of the said doctor is limited.
- the scraper apparatus for the paper industry object of the invention provides a solution to these limitations and / or defects with a different technology that uses magnetic forces to dock the wallet to the frame.
- the use of magnetic forces allows the fixing force to be deactivated or activated by means of a simple operation, this activation or deactivation operation can be done remotely, so from the side edge of the doctor, one can can activate or deactivate the force that occurs throughout the length of the doctor.
- Magnetic docking allows the system the ability to use a large clearance in the guidance system, which translates into greater ease of extraction and insertion, because once the system is in place, this game is suppressed by means of magnetic forces. For some concrete achievements, in addition, one can realize a system where the positioning is repeated.
- the magnetic means that conjugately / correspondence is arranged on the plate-armature, at least one zone of ferromagnetic material and permanent magnets or electromagnets.
- the lateral insertion of the portfolios into the doctor is performed successively; the positioning of the portfolios on the doctor, and the activation of the magnetic attraction force.
- the figure 1 represents a general view, from above, of a scraper apparatus according to the invention as an embodiment.
- Figure 2 shows a general view, from above, of a scraper apparatus, according to the invention as an alternative embodiment.
- the magnetic actuator is located on the outside and the front.
- the figure 3 represents a general view, from above, of a scraper apparatus, according to the invention, as an alternative embodiment, with the magnetic actuator placed inside, under the guiding button.
- the figure 4 represents a general view, from above, of a scraper apparatus, according to the invention as an alternative embodiment, with a magnetic actuator placed on the outside, at the rear when the magnet is not in action - figure 4a - when the magnet is in action - figure 4b -
- the figure 5 is an enlarged view of the details corresponding to the figure 4 .
- FIG 6 is a general view, from above, of a scraper apparatus, according to the invention, as an alternative embodiment, which comprises two magnetic actuators, one placed at the front and the other at the rear.
- the figure 7 represents an alternative achievement to the figure 3 .
- the figure 8 represents an alternative achievement to the figure 4 .
- the guidance of the system takes place employing elements (5) whose sole function is to guide the wallets at the moment of deactivating the magnetic force and allowing lateral extraction of the wallets.
- the function of the guiding elements (5) for the extraction is exclusively limited to the fixing of the wallet at the time of performing the operation of extraction or insertion of the wallets on the doctor.
- the docking of the wallet to the doctor is achieved thanks to the attractive force of the magnetic actuator assembly (1, 2 and 3) on the base (4) of the wallets. If the effort of the method is carried out on the tip (7) of the sheet (1), the moment generated by this force is supported by the magnetic actuator assembly (1, 2 and 3), and the fulcrum ( 6) at the end of the support (s) of the wallet.
- the magnetic actuator assembly includes, at least, a permanent magnet or electromagnetic (1) permeable material (2) and non-permeable material (3) disposed in the armature (b) and that permanent magnet / electromagnet (1) acting or not on an area of ferromagnetic material (z) disposed on the supports wallets (s).
- This composition is identified below as a set of magnetic means (1), (2), (3).
- This second solution can also be implemented, as indicated on the figure 3 , including all the magnetic means (1), (2), (3) under the guide element (11). This solution simplifies the manufacture of the device, although it requires more powerful magnets to support the same load.
- the guide member (11) defines an inner position (15) with walls (16) conjugated with the walls of an opening (ch) defined in an additional support member (14) -see detail, figure 5 -.
- the magnetic docking is used to fix the wallet support (s) against the armature (b) fixedly.
- the efforts to be made by the magnetic mooring (1), (2), (3) are very small and, when this mooring is performed, the position of the wallet (5) with respect to the armature ( b) is repetitive and existing games at the time of editing are completely canceled.
- the clearance of the assembly is removed by activating the magnetic actuator (1), (2), (3), the wallet then relies on the additional element (14), and on the conical face of the button (11).
- the strength of the process in this case, goes in favor of the magnet (1) and the magnetic system is therefore less bulky than in the solutions described above.
Landscapes
- Paper (AREA)
- Coating Apparatus (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Electromagnets (AREA)
- Sheet Holders (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
Appareil de raclage pour l'industrie papetière, disposant d'une feuille racleuse (1), d'un support (s) de la feuille racleuse (1) avec un axe de pivotement (e) par rapport à un plateau (4), ce plateau (4) s'appuyant sur l'armature (b) de l'appareil, caractérisé par la disposition de moyens magnétiques pour exercer des forces magnétiques entre le plateau (4) ou de l'élément fixe à elle et l'armature (b), et les moyens d'actions sont disposés sur les moyens magnétiques mentionnés pour activer/désactiver les forces magnétiques entre le plateau (4) et l'armature (b). Les moyens magnétiques consistent en le fait que de manière conjuguée/correspondance, sont disposés sur le plateau (4)-armature (b), au moins une zone (z) de matériel ferromagnétique et des aimants permanents ou électroaimants (1).Scraping apparatus for the paper industry, having a scraper sheet (1), a carrier (s) of the scraper sheet (1) with a pivot axis (e) relative to a plate (4), this plate (4) resting on the armature (b) of the apparatus, characterized by the provision of magnetic means for exerting magnetic forces between the plate (4) or the element fixed to it and the armature (b), and the action means are arranged on the magnetic means mentioned to activate / deactivate the magnetic forces between the plate (4) and the armature (b). The magnetic means consist in the fact that in a conjugated manner / correspondence, are arranged on the plate (4) -armature (b), at least one zone (z) of ferromagnetic material and permanent magnets or electromagnets (1).
Description
L'invention a pour objet un appareil de raclage pour l'industrie papetière, de ceux qui comportent une feuille racleuse, un support de feuille racleuse avec un axe de pivotement par rapport à un plateau, ce dit-plateau prenant appui sur l'armature de l'appareil.The invention relates to a scraping apparatus for the paper industry, those which comprise a scraper sheet, a scraper sheet support with a pivot axis with respect to a plate, said plateau-plate being supported on the armature of the device.
En particulier, l'objet de l'invention se réfère à des solutions pour l'extraction, l'insertion et l'amarrage d'un portefeuilles sur l'armature d'un docteur, quand l'accès des bords latéraux du dit-docteur est limité.In particular, the object of the invention refers to solutions for the extraction, insertion and docking of a wallet on the armature of a doctor, when the access of the lateral edges of the said doctor is limited.
En l'état actuel de la technique, on peut déjà citer des appareils racloirs connus, comme par exemple et entre autres, les documents de Brevet
Les solutions connues présentent des limitations et/ou des défauts; comme quand l'extraction est faite latéralement et sans aucun mouvement dans une autre direction, il n'est aucun système fiable qui permette d'éviter le jeu dans les zones éloignées des bords latéraux du docteur.Known solutions have limitations and / or defects; as when the extraction is made laterally and without any movement in another direction, there is no reliable system which avoids play in areas far from the lateral edges of the doctor.
C'est pourquoi, on ne peut disposer de beaucoup de jeu pour l'élément de guidage et en conséquence :
- ai) les opérations d'insertion et d'extraction du portefeuilles peuvent présenter des difficultés
- a2) à mesure que l'élément de guidage s'encrasse, l'opération d'insertion et d'extraction est plus difficile à réaliser (et si initialement il y a un jeu peu important, cela accentue le problème).
- b) Le positionnement de la feuille peut ne pas se répéter.
- c) Quand pendant le processus surviennent des forces inattendues comme, par exemple, l'impact dû au passage d'une feuille de papier) il peut se faire que le système perde la pré-charge et il peut se produire des vibrations en raison du jeu.
- d) Quand on voulait supprimer ce jeu, dans les solutions précédentes, on utilisait une solution mécanique de blocage installé dans la rainure, laquelle solution mécanique :
- di) peut se bloquer en raison de l'encrassement, rendant difficile ou impossible l'extraction du portefeuilles.
- d2) utilise une languette qui subit des déformations importantes à chaque opération d'extraction et d'insertion, et donc pourrait avoir des problèmes d'usure.
- (a) portfolio insertion and extraction operations may present difficulties
- a 2 ) as the guiding element becomes dirty, the insertion and extraction operation is more difficult to perform (and if initially there is a small clearance, this accentuates the problem).
- b) The positioning of the sheet may not be repeated.
- c) When during the process unexpected forces occur, for example, the impact of a sheet of paper, the system may lose pre-charge and vibrations may occur due to Game.
- d) When we wanted to eliminate this game, in the previous solutions, we used a mechanical solution of blocking installed in the groove, which mechanical solution:
- di) may become blocked due to fouling, making it difficult or impossible to extract the wallet.
- d 2 ) uses a tongue that undergoes significant deformations at each extraction and insertion operation, and therefore could have wear problems.
Pour trouver des solutions à ces limitations et/ou défauts, la technologie connue emploie :
- des jeux importants
- des amarrages en différentes positions longitudinales du portefeuilles pour éviter les problèmes causés par l'importance du jeu
- des systèmes de fixation dont la fonctionnalité n'est pas affectée par l'encrassement.
- important games
- moorings in different longitudinal positions of the portfolios to avoid problems caused by the importance of the game
- fastening systems whose functionality is not affected by fouling.
L'appareil de raclage pour l'industrie papetière objet de l'invention apporte une solution à ces limitations et/ou défauts avec une technologie différente qui emploie des forces magnétiques pour amarrer le portefeuilles à l'armature. L'emploi de forces magnétiques permet à la force de fixation d'être désactivée ou activée au moyen d'une simple opération, cette opération d'activation ou de désactivation peut se faire à distance, ainsi donc depuis le bord latéral du docteur, on peut activer ou désactiver la force qui se produit sur toute la longueur du docteur.The scraper apparatus for the paper industry object of the invention provides a solution to these limitations and / or defects with a different technology that uses magnetic forces to dock the wallet to the frame. The use of magnetic forces allows the fixing force to be deactivated or activated by means of a simple operation, this activation or deactivation operation can be done remotely, so from the side edge of the doctor, one can can activate or deactivate the force that occurs throughout the length of the doctor.
L'amarrage magnétique permet au système la possibilité d'employer un jeu important dans le système de guidage, ce qui se traduit par une plus grande facilité d'extraction et d'insertion, car une fois le système mis en place, ce jeu est supprimé au moyen des forces magnétiques. Pour certaines réalisations concrètes, en plus, on peut réaliser un système où le positionnement se répète.Magnetic docking allows the system the ability to use a large clearance in the guidance system, which translates into greater ease of extraction and insertion, because once the system is in place, this game is suppressed by means of magnetic forces. For some concrete achievements, in addition, one can realize a system where the positioning is repeated.
L'appareil de raclage pour l'industrie papetière objet de l'invention, de ceux qui comportent une feuille racleuse, un support de feuille racleuse sur un axe de pivotement par rapport à un plateau, ce dit plateau prenant appui sur l'armature de l'appareil, se caractérise par le fait que :
- a) on dispose de moyens magnétiques pour exercer des forces magnétiques entre le plateau ou d'élément fixés à celui-ci et à l'armature, et
- b) de moyens d'action sur les moyens magnétiques pour activer/désactiver les forces magnétiques entre le plateau et l'armature.
- a) magnetic means are provided for exerting magnetic forces between the tray or elements attached thereto and to the frame, and
- b) means of action on the magnetic means for activating / deactivating the magnetic forces between the plate and the armature.
Il est aussi caractéristique car les moyens magnétiques font que de façon conjuguée/correspondance on dispose sur le plateau-armature, au moins une zone de matériel ferromagnétique et des aimants permanents ou électroaimants.It is also characteristic because the magnetic means that conjugately / correspondence is arranged on the plate-armature, at least one zone of ferromagnetic material and permanent magnets or electromagnets.
Sur l'appareil de raclage objet de l'invention, le processus de montage, démontage et amarrage du portefeuilles sur le docteur sera réalisé de manière similaire, quelques soient les réalisations concrètes en question.On the scraping apparatus object of the invention, the process of mounting, dismounting and docking of the portfolios on the doctor will be achieved in a similar manner, whatever the concrete achievements in question.
Dans l'opération d'extraction d'un portefeuilles on désactive la force d'attraction magnétique du système de fixation, ce qui fait que maintenant le portefeuilles et le docteur sont unis au moyen d'éléments de fixation très simples, et avec un grand jeu permettant au portefeuilles de pouvoir sortir du docteur.In the operation of extracting a wallet, the magnetic attraction force of the fastening system is deactivated, so that now the wallets and the doctor are united by means of very simple fastening elements, and with a large game allowing the wallets to be able to leave the doctor.
Dans l'opération d'insertion du portefeuilles, on effectue successivement, l'insertion latérale du portefeuilles dans le docteur ; le positionnement du portefeuilles sur le docteur, et l'activation de la force magnétique d'attraction.In the portfolio insertion operation, the lateral insertion of the portfolios into the doctor is performed successively; the positioning of the portfolios on the doctor, and the activation of the magnetic attraction force.
Les avantages de l'appareil de raclage pour l'industrie papetière, d'après l'invention, résident de manière évidente dans ses structure, composants et disposition :
- Une fois inséré le portefeuilles, il permet l'amarrage de celui-ci en n'importe quelle position du portefeuilles agissant uniquement sur son bord latéral (dans le cas d'un aimant permanent) ou aussi depuis un tableau de contrôle (dans le cas d'un électroaimant).
- La force d'amarrage peut être activée ou desactivée de manière simple.
- Le système peut-être formaté pour obtenir la force d'amarrage adéquate. Même au moyen de simples modifications cette dite force pourrait varier après la mise en place (au moyen de la modification d'intensité de travail sur un actionneur basé sur un électroaimant ou au moyen de la modification de la distance entre aimants sur un actionneur basé sur aimants permanents).
- Le procédé d'insertion et d'extraction est une opération facile à réaliser.
- Permet l'emploi d'un jeu important pour l'opération d'insertion et d'extraction, de manière à ce que l'encrassement de l'élément de guidage ne devienne plus qu'un facteur secondaire, avec en plus suppression de ce jeu quand aucune opération d'extraction ni d'insertion n'est en cours.
- une fois que la force magnétique est activée, la feuille retrouve sa position.
- Once inserted the wallet, it allows the docking of it in any position of the wallets acting only on its side edge (in the case of a permanent magnet) or also from a control board (in the case of an electromagnet).
- The mooring force can be activated or deactivated in a simple way.
- The system can be formatted to get the proper mooring force. Even by means of simple modifications, this said force could vary after the installation (by means of the modification of work intensity on an actuator based on an electromagnet or by means of the modification of the distance between magnets on an actuator based on permanent magnets).
- The insertion and extraction process is an easy operation to perform.
- Allows the use of a large clearance for the insertion and extraction operation, so that the clogging of the guiding element becomes no more than a secondary factor, in addition to removing this play when no fetch or insert operation is in progress.
- once the magnetic force is activated, the sheet returns to its position.
Pour mieux comprendre l'objet de la présente invention, on représente sur des plans une forme préférentielle pour une réalisation pratique, susceptible de changements accessoires qui ne dénatureraient pas son fondement.To better understand the object of the present invention, there is shown on planes a preferred form for a practical embodiment, susceptible of incidental changes that would not distort its foundation.
La
La figura 2 représente une vue générale, de haut, d'un appareil racloir, selon l'invention comme exemple de réalisation alternative.Figure 2 shows a general view, from above, of a scraper apparatus, according to the invention as an alternative embodiment.
Sur les deux
La
La
La
La
La
La
Ci-dessous est décrit un exemple de réalisation pratique, non limitative, de la présente invention.Below is an example of a practical, non-limiting embodiment of the present invention.
L'objet de l'invention est un appareil racloir pour l'industrie papetière qui comporte une feuille racleuse(I), un support (s) de la feuille racleuse (I) avec un axe de pivotement (e), par rapport à un plateau (4), ce dernier prenant appui sur l'armature (b) de l'appareil.
En conformité avec l'invention, on dispose :
- a) de moyens magnétiques pour exercer des forces magnétiques entre le plateau (4) ou l'élément fixé à celui-ci et l'armature, et
- b) de moyens d'action sur les moyens magnétiques pour activer/désactiver les forces magnétiques entre le plateau (4) et l'armature (b).
In accordance with the invention, there is provided:
- a) magnetic means for exerting magnetic forces between the plate (4) or the element attached thereto and the armature, and
- b) means of action on the magnetic means for activating / deactivating the magnetic forces between the plate (4) and the armature (b).
Dans n'importe quelles solutions l'amarrage du portefeuilles sur le docteur est réalisée uniquement au moyen de forces magnétiques.In any solutions the docking of the wallets on the doctor is carried out only by means of magnetic forces.
Le guidage du système a lieu employant des éléments (5) dont la fonction unique est de guider le portefeuilles au moment de désactiver la force magnétique et de permettre l'extraction latérale du portefeuilles.The guidance of the system takes place employing elements (5) whose sole function is to guide the wallets at the moment of deactivating the magnetic force and allowing lateral extraction of the wallets.
Selon la réalisation représentée sur la
La réalisation représentée sur la
- a) dans l'armature (b) d'une rainure longitudinale (r) avec une ouverture (ch) et
- b) d'un élément guidé (11) uni au plateau (4) par un corps (15) aux parois (16) conjuguées avec les parois de l'ouverture (ch), l'élément de guidage (11) étant emboîté avec ampleur dans la rainure longitudinale (r) de manière à ce que, avec les moyens d'action en situation de désactivation de la force magnétique du plateau (4), il puisse pivoter légèrement par rapport à l'armature (b) et/ou il puisse se déplacer dans celui-ci sur la longueur. Le fonctionnement de cette seconde solution est semblable au fonctionnement de la première solution décrite ci-dessus, la principale différence par rapport à elle réside dans le fait que, si l'actionneur magnétique (1) ne peut supporter les efforts générés durant le procédé, l'élément de guidage (11) pourra absorber ces efforts.
- a) in the frame (b) a longitudinal groove (r) with an opening (ch) and
- b) a guided element (11) joined to the plate (4) by a body (15) to the walls (16) conjugated with the walls of the opening (ch), the guide element (11) being fitted with magnitude in the longitudinal groove (r) so that, with the means of action in a situation of deactivation of the magnetic force of the plate (4), it can pivot slightly with respect to the armature (b) and / or he can move in this one along the length. The operation of this second solution is similar to the operation of the first solution described above, the main difference from it lies in the fact that, if the magnetic actuator (1) can not withstand the forces generated during the process, the guide element (11) can absorb these forces.
Cette seconde solution peut aussi être implantée, comme il est indiqué sur la
La réalisation représentée sur les
L'élément de guidage (11) définit une position intérieure (15) avec des parois (16) conjuguées avec les parois d'une ouverture (ch) définie dans un élément supplémentaire de soutien (14) -voir détail,
Dans cette solution, l'amarrage magnétique est utilisé pour fixer le support portefeuilles (s) contre l'armature (b) fixement. Dans ce cas, les efforts que doit réaliser l'amarrage magnétique (1), (2), (3) sont très peu importants et, quand cet amarrage est réalisé, la position du portefeuilles (5) par rapport à l'armature (b) est répétitive et les jeux existants au moment du montage sont totalement annulées. Le jeu du montage est retiré en activant l'actionneur magnétique (1), (2), (3), le portefeuilles s'appuie alors sur l'élément supplémentaire (14), et sur la face conique du bouton (11). La force du procédé, dans ce cas, va en faveur de l'aimant (1) et le système magnétique est donc moins volumineux que dans les solutions décrites précédemment.In this solution, the magnetic docking is used to fix the wallet support (s) against the armature (b) fixedly. In this case, the efforts to be made by the magnetic mooring (1), (2), (3) are very small and, when this mooring is performed, the position of the wallet (5) with respect to the armature ( b) is repetitive and existing games at the time of editing are completely canceled. The clearance of the assembly is removed by activating the magnetic actuator (1), (2), (3), the wallet then relies on the additional element (14), and on the conical face of the button (11). The strength of the process, in this case, goes in favor of the magnet (1) and the magnetic system is therefore less bulky than in the solutions described above.
Cette réalisation présente deux états différents, une fois que le portefeuilles (5) a été inséré dans le docteur :
- 1.- Actionneur sans actionnement (
figure 4a ). Dans ce cas, la force réalisée par l'actionneur magnétique est méprisable, et le portefeuilles est appuyé sur l'élément supplémentaire (14) et sur les éléments de guidage (11). Le jeu (r) existante dans cette situation est élevée, étant donné que l'élément supplémentaire de soutien (14) ne peut uniquement restreindre des mouvements de gauche à droite ainsi que le pivotement sur ce même point. - 2.- Actionneur actionné (
figure 4b ). L'ensemble magnétique (1, 2 et 3) crée une force d'attraction (vers le bas sur la figure) sur le support du portefeuilles (4). Cette force d'attraction fait que, si le système pivote sur le point d'appui (e), l'élément de guidage (11) de la partie du portefeuilles se déplace vers le haut jusqu'à rencontrer l'extrémité avec le guide (141) de l'élément de soutien (14). Le fait que cet élément de guidage (11) ait une forme conique, (15), (16) fait que cet élément se place sur un petit pan (ch) qui est réalisé sur le guide (141), de manière à ce que la position d'équilibre soit unique et donc, que la position du portefeuilles soit répétitive..
- 1.- Actuator without actuation (
figure 4a ). In this case, the force achieved by the magnetic actuator is despicable, and the wallet is supported on the additional element (14) and on the guiding elements (11). The game (r) existing in this situation is high, since the additional support element (14) can only restrict left-to-right movements as well as pivoting on this same point. - 2.- Activated actuator (
figure 4b ). The magnetic assembly (1, 2 and 3) creates a pulling force (downward in the figure) on the support of the wallets (4). This attractive force causes that, if the system pivots on the fulcrum (e), the guiding element (11) of the part of the wallets moves upwards until it meets the end with the guide (141) of the support member (14). The fact that this guide element (11) has a conical shape, (15), (16) causes this element to be placed on a small part (ch) which is formed on the guide (141), so that the equilibrium position is unique and therefore, that the position of the wallet is repetitive.
Même si dans les figures précédentes, l'actionneur a été attaché à l'armature du docteur, le fonctionnement de l'appareil est équivalent quand l'actionneur est attaché sur le propre portefeuilles (5) et confronté à l'armature (b). La
Pour éliminer les jeux dans cette exemple de réalisation, nous procédons de la manière suivante :
- Quand les moyens magnétiques (1), (2), (3) n'agissent pas, la position du portefeuilles par rapport au guide est n'importe quelle position intermédiaire.
- Le parcours existant entre les deux positions extrêmes, est le jeu (r) dont disposera la système au moment de réaliser l'extraction ou l'insertion du portefeuilles dans l'armature du docteur. Plus le jeu (r) existante est importante, plus les opérations d'extraction et d'insertion seront faciles à réaliser. L'action des moyens magnétiques (1), (2), (3) permettent d'annuler ces jeux (r) une fois les opérations d'extraction et d'insertion réalisées. Si aucune opération d'extraction ou d'insertion du portefeuilles dans le docteur n'est réalisée, les jeux (r) ne sont plus nécessaires, et elles peuvent uniquement provoquer des conséquences négatives dans le fonctionnement de l'appareil.
- Cette solution peut aussi être implantée comme dans la
figure 7 , en incluant l'ensemble de moyens magnétiques (1), (2), (3) sous l'élément guide (11). Cette solution simplifie la fabrication de l'appareil, même si elle demande des aimants plus puissants pour supporter la même charge. - La réalisation représentée sur la
figure 6 est semblable à celle représentée sur lafigure 4 avec la particularité de disposer plus d'un ensemble de moyens magnétiques (1), (2), (3). Elle dispose, concrètement, de au moins un ensemble de moyens magnétiques (1), (2), (3) sur chaque côté de l'axe de pivotement (e). - Dans l'exemple de réalisation incluant plus d'un ensemble de moyens magnétiques, le portefeuilles est soutenu sur toute la base (4) car une action est exercée sur les deux côtés du portefeuilles.
- Toutes les réalisations alternatives n'affectant, ne changeant ou ne modifiant pas le principe proposé sont incluses dans l'objet de l'invention. Par exemple, et, entre autres, il est inclus dans l'objet de l'invention que :
- l'élément de guidage (11) est disposé au centre par rapport à l'axe de pivotement (e) -
figures 2 ,3 ,4 ,6 ,7 et8 . - les moyens magnétiques (1), (2), (3) sont disposés sur le côté de l'axe de pivotement (e) le plus proche de la feuille (I) -
figures 1 ,2 - sur l'autre côté, le plus éloigné de la feuille (I) -figures 4 ,8 - sur les deux côtés,figure 6 - ou même alignés au centre par rapport à l'axe de pivotement (e) -figures 3 ,7 -.
- l'élément de guidage (11) est disposé au centre par rapport à l'axe de pivotement (e) -
- Le système d'amarrage peut être disposé de différentes manières, obtenant différentes prestations. Entre autres, les possibilités suivantes sont envisagées :
- Utiliser plus d'un moyen magnétique (1) -
figure 6 - - Utiliser des moyens (1) devant l'élément de guidage (11) -
figure 1 - - Utiliser des moyens magnétiques (1), (2), (3) au-dessous de l'élément de guidage (11) -
figure 7 - - Utiliser des moyens magnétiques (1), (2), (3) derrière l'élément de guidage(11)
- Les moyens magnétiques (1), (2), (3) disposent indifféremment l'armature (b) et le portefeuilles (4) ou à l'inverse :
- l'ensemble aimant/électroaimant (1)/matériel perméable (2)/matériel non perméable (3) dans le portefeuilles (4) et la zone de matériel ferromagnétique (z) dans l'armature (b).
- Utiliser plus d'un moyen magnétique (1) -
- When the magnetic means (1), (2), (3) do not act, the position of the wallet relative to the guide is any intermediate position.
- The path between the two extreme positions is the game (r) available to the system when performing the extraction or inserting the wallet into the doctor's frame. The larger the existing game (r) is, the easier the extraction and insertion operations will be. The action of the magnetic means (1), (2), (3) can cancel these games (r) once the extraction and insertion operations performed. If no extraction or insertion of the wallets into the doctor is performed, the games (r) are no longer necessary, and they can only cause negative consequences in the operation of the device.
- This solution can also be implemented as in the
figure 7 , including the set of magnetic means (1), (2), (3) under the guide member (11). This solution simplifies the manufacture of the device, even if it requires more powerful magnets to support the same load. - The realization represented on the
figure 6 is similar to that shown on thefigure 4 with the particularity of having more than one set of magnetic means (1), (2), (3). It has, concretely, at least one set of magnetic means (1), (2), (3) on each side of the pivot axis (e). - In the exemplary embodiment including more than one set of magnetic means, the wallet is supported on the whole base (4) because an action is exerted on both sides of the wallet.
- All alternative embodiments that do not affect, change or modify the proposed principle are included in the subject of the invention. For example, and among others, it is included in the subject of the invention that:
- the guide element (11) is centrally disposed with respect to the pivot axis (e) -
figures 2 ,3 ,4 ,6 ,7 and8 . - the magnetic means (1), (2), (3) are arranged on the side of the pivot axis (e) closest to the sheet (I) -
figures 1 ,2 - on the other side, farthest from the sheet (I) -figures 4 ,8 - on both sides,figure 6 - or even aligned centrally with respect to the pivot axis (e) -figures 3 ,7 -.
- the guide element (11) is centrally disposed with respect to the pivot axis (e) -
- The mooring system can be arranged in different ways, obtaining different benefits. Among others, the following possibilities are envisaged:
- Use more than one magnetic medium (1) -
figure 6 - - Use means (1) in front of the guide element (11) -
figure 1 - - Use magnetic means (1), (2), (3) below the guide element (11) -
figure 7 - - Use magnetic means (1), (2), (3) behind the guide element (11)
- The magnetic means (1), (2), (3) have indifferently the armature (b) and the wallet (4) or conversely:
- the magnet / electromagnet (1) / permeable material (2) / non-permeable material (3) in the wallets (4) and the ferromagnetic material zone (z) in the armature (b).
- Use more than one magnetic medium (1) -
Dans toutes les solutions, les moyens magnétiques (1), (2), (3) peuvent être amarrés indifféremment à l'armature (b) ou à la base du portefeuilles (s).
- Les moyens d'actionnement sont mécaniques/manuels et dans l'ensemble (1) les moyens magnétiques sont des aimants, de telle manière que le flux des aimants (1) est orienté ou non vers la zone (z) de matériel ferromagnétique.
- Les moyens d'actionnement sont des moyens d'activation/désactivation du courant et les moyens magnétiques (1), (2), (3) sont des électroaimants de telle manière qu'ils sont activés/désactivés par connexion/déconnexion électrique, même avec une commande à distance.
La même fonction peut être réalisée avec deux types de moyens magnétiques (1), (2), (3) différents : l'actionneur électromagnétique et l'actionneur avec un aimant permanent. - L'axe de pivotement (e) est un roulement, et présente, par exemple, une configuration tubulaire.
- The actuating means are mechanical / manual and in the assembly (1) the magnetic means are magnets, such that the flux of the magnets (1) is oriented or not towards the zone (z) of ferromagnetic material.
- The actuating means are means for activating / deactivating the current and the magnetic means (1), (2), (3) are electromagnets in such a way that they are activated / deactivated by electrical connection / disconnection, even with a remote control.
The same function can be achieved with two different types of magnetic means (1), (2), (3): the electromagnetic actuator and the actuator with a permanent magnet. - The pivot axis (e) is a bearing, and has, for example, a tubular configuration.
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200701941A ES2310976B1 (en) | 2007-07-11 | 2007-07-11 | SCRAPER DEVICE FOR THE PAPER INDUSTRY. |
PCT/ES2008/000112 WO2009007473A1 (en) | 2007-07-11 | 2008-02-27 | Scraping apparatus for the paper industry |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2169114A1 true EP2169114A1 (en) | 2010-03-31 |
EP2169114A4 EP2169114A4 (en) | 2013-11-20 |
EP2169114B1 EP2169114B1 (en) | 2017-08-30 |
Family
ID=40192863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08736714.0A Not-in-force EP2169114B1 (en) | 2007-07-11 | 2008-02-27 | Scraping apparatus for the paper industry |
Country Status (7)
Country | Link |
---|---|
US (1) | US7972481B2 (en) |
EP (1) | EP2169114B1 (en) |
CN (1) | CN101755091B (en) |
BR (1) | BRPI0806815A2 (en) |
CA (1) | CA2672556C (en) |
ES (2) | ES2310976B1 (en) |
WO (1) | WO2009007473A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2288120B1 (en) * | 2006-05-25 | 2008-10-16 | Jose Joaquin Amonarriz Azcolain | CREPING AND CUTTING PROCEDURE AND INSTALLATION. |
EP2403784B1 (en) * | 2009-03-03 | 2013-07-24 | ATS Automation Tooling Systems Inc. | Multi-mode scroll cam conveyor system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1042554B1 (en) * | 1997-12-22 | 2003-03-12 | Kadant Web Systems Inc. | Removable doctor blade holder |
EP1541761A1 (en) * | 2003-12-12 | 2005-06-15 | Voith Paper Patent GmbH | Doctoring apparatus |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL269602A (en) * | 1960-09-27 | |||
US3882817A (en) * | 1974-01-11 | 1975-05-13 | Black Clawson Co | Doctor Blade Assembly |
DE3618772A1 (en) * | 1986-06-04 | 1987-12-10 | Sohlberg Lars Goeran | Method for adjusting the doctor in a printing machine, and device for carrying out such a method |
US4860686A (en) * | 1986-11-26 | 1989-08-29 | Beloit Corporation | Coating width regulating apparatus |
US5138970A (en) * | 1989-06-22 | 1992-08-18 | J.M. Voith Gmbh | Device for coating web material |
DE4008435A1 (en) * | 1989-06-22 | 1991-01-03 | Voith Gmbh J M | PAINTING DEVICE |
US6524444B2 (en) * | 2001-04-24 | 2003-02-25 | Kadant Web Systems Inc. | Removable doctor blade holder |
FI116797B (en) * | 2004-03-25 | 2006-02-28 | Runtech Systems Oy | spring Scraper |
BRPI0607799A2 (en) * | 2005-02-22 | 2009-06-13 | Kadant Web Systems Inc | removable scraper blade holder with lockable bracket |
FI117712B (en) | 2005-06-17 | 2007-01-31 | Metso Paper Inc | Composite scraper assembly |
DE102005034452A1 (en) | 2005-07-23 | 2007-01-25 | Voith Patent Gmbh | scraper device |
-
2007
- 2007-07-11 ES ES200701941A patent/ES2310976B1/en not_active Expired - Fee Related
-
2008
- 2008-02-27 ES ES08736714.0T patent/ES2650447T3/en active Active
- 2008-02-27 EP EP08736714.0A patent/EP2169114B1/en not_active Not-in-force
- 2008-02-27 WO PCT/ES2008/000112 patent/WO2009007473A1/en active Application Filing
- 2008-02-27 BR BRPI0806815-1A patent/BRPI0806815A2/en not_active IP Right Cessation
- 2008-02-27 CA CA2672556A patent/CA2672556C/en not_active Expired - Fee Related
- 2008-02-27 US US12/524,046 patent/US7972481B2/en not_active Expired - Fee Related
- 2008-02-27 CN CN2008800241693A patent/CN101755091B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1042554B1 (en) * | 1997-12-22 | 2003-03-12 | Kadant Web Systems Inc. | Removable doctor blade holder |
EP1541761A1 (en) * | 2003-12-12 | 2005-06-15 | Voith Paper Patent GmbH | Doctoring apparatus |
Non-Patent Citations (1)
Title |
---|
See also references of WO2009007473A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7972481B2 (en) | 2011-07-05 |
CN101755091A (en) | 2010-06-23 |
EP2169114B1 (en) | 2017-08-30 |
WO2009007473A1 (en) | 2009-01-15 |
EP2169114A4 (en) | 2013-11-20 |
US20100018661A1 (en) | 2010-01-28 |
CA2672556C (en) | 2014-06-03 |
CA2672556A1 (en) | 2009-01-15 |
ES2650447T3 (en) | 2018-01-18 |
BRPI0806815A2 (en) | 2011-09-13 |
ES2310976B1 (en) | 2009-11-19 |
ES2310976A1 (en) | 2009-01-16 |
CN101755091B (en) | 2012-05-02 |
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