EP3019288A1 - Dispositif de nettoyage pour plieuse - Google Patents

Dispositif de nettoyage pour plieuse

Info

Publication number
EP3019288A1
EP3019288A1 EP14757829.8A EP14757829A EP3019288A1 EP 3019288 A1 EP3019288 A1 EP 3019288A1 EP 14757829 A EP14757829 A EP 14757829A EP 3019288 A1 EP3019288 A1 EP 3019288A1
Authority
EP
European Patent Office
Prior art keywords
bending
elastic
tool
cleaning unit
cleaning
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
Application number
EP14757829.8A
Other languages
German (de)
English (en)
Other versions
EP3019288B1 (fr
Inventor
Thomas Denkmeier
Johann Mayrhofer
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.)
Trumpf Maschinen Austria GmbH and Co KG
Original Assignee
Trumpf Maschinen Austria GmbH and Co KG
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 Trumpf Maschinen Austria GmbH and Co KG filed Critical Trumpf Maschinen Austria GmbH and Co KG
Publication of EP3019288A1 publication Critical patent/EP3019288A1/fr
Application granted granted Critical
Publication of EP3019288B1 publication Critical patent/EP3019288B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means

Definitions

  • the invention relates to a cleaning unit for a processing plant, in particular bending press, as specified in claim 1.
  • the document JP 2004-237286 A discloses a cleaning device for a bending machine.
  • the purpose of this cleaning s device is that the lower bending tool, in particular the bending die, of impurities that arise during the bending process, is cleaned.
  • a rotating brush is used, which is attached, for example, to the back stop unit, or to a cleaning manipulator. This rotating brush is moved over the lower bending tool so that the die is freed of impurities over its entire length.
  • a disadvantage of the known from JP 2004-237286 A execution is that all contaminants, which are located on the surface of the die, are transported by the Abbürstvorgang directly into the tool holder of the lower press beam or on the lower beam press.
  • the dirt is locally removed from the workpiece-contacting surface, but passes to another part of the bending machine, where it also affects the function of the bending machine. Furthermore, in this procedure, there is no possibility to clean off the part of the bending tool which forms the fastening section of the bending tool and is in contact with the tool holder of the pressing beam.
  • the surface of the workpiece can be positively influenced by the cleaning of the outer surfaces on the tool, in the case of a tool change, impurities may settle between the contact surfaces of the bending tool and the tool holder, resulting in positioning inaccuracy of the bending tool and thus lead to an inaccuracy in the sheet metal workpiece to be bent.
  • the present invention has for its object to increase the quality and accuracy of the bent workpieces to the effect that the bending tool can be clamped positionally accurate at a tool change in any case and the voltage is not affected by impurities. Furthermore, no impurities to the Surface of the workpiece can reach where they adversely affect the surface of the workpiece. Furthermore, it is an object of the invention, the bending machine, in particular the bending tools and the tool holder, to protect against any damage due to contamination.
  • a cleaning unit which consists of a base body on which at least one elastic Ab stripe element is attached, solved.
  • a machining apparatus is formed, comprising a bending press, in particular for bending sheet metal, with a fixed pressing beam and a pressing beam adjustable relative thereto, to which pressing beam a tool holder is attached or integrated.
  • at least one bending tool with a fixing portion for fixing in the tool holder.
  • at least one manipulation device for handling bending tools and / or sheets or a backgauge device for positioning support of sheets.
  • a cleaning unit which consists of a base body, on which at least one elastic stripping element is attached. Wherein the bending tool from the manipulation device to the cleaning unit is movable and along the elastic stripping element is displaceable, so that at least a part of the fixing portion, during the displacement with the elastic scraper element in contact.
  • An advantage of the embodiment of the invention is that a cleaning unit is used which is universally applicable and just the attachment portion of the bending tool can be cleaned particularly well by this cleaning unit. This is particularly important because contamination of the mounting portion upon re-insertion of the bending tool into the tool holder may cause the contamination to cause a positioning error of the bending tool. It should be noted that only a small contamination-related positioning error of the bending tool involves a comparatively high angular deviation on the sheet to be bent. In addition, it should be noted that contamination on the attachment portion of the bending tool causes this contamination when the bending tool is tensioned, force applied by the clamping force are pressed into the bending tool can, resulting in permanent damage to the mounting portion of the bending tool can be expected.
  • both a part of the fastening section and also further parts of the bending tool are in contact with the elastic stripping element during the displacement.
  • the fastening section of the bending tool as well as the workpiece-contacting surface can be freed of dirt at the same time and in one operation.
  • the cleaning unit must be designed so that the stripping element, which can be adapted to the respective bending tool to be cleaned, touches this bending tool both on the tool holder and on the workpiece contacting surface.
  • the elastic wiper element is adapted to the tool to be cleaned, that this is almost fully in contact with the tool to be cleaned. Only a recess for the intervention of the manipulation device must still be provided so that the tool can be guided along the cleaning unit. In such an expression, it may be necessary that for each different size of a tool and a separate cleaning unit must be provided.
  • the shape of the elastic stripping element in the section which touches the surface to be cleaned is adapted to the shape of the surface to be cleaned.
  • the advantage here is that thereby the elastic element in the cleaning operation does not have to deform so much, but that can be achieved by adapting to the surface to be cleaned, that even twisted points on the object to be cleaned can be achieved well, and thus freed of dirt can be. Furthermore, this ensures that the elastic scraper element a longer Le- service life, since it is less stressed because of lower deformations.
  • the elastic wiper element is absorbent, whereby a cleaning and / or preservative in the stripping element is storable and can be delivered to the surface to be cleaned.
  • the advantage here is that thus the bending tool is not only mechanically cleaned, but the cleaning can be supported by a detergent and at the same time a preservation by a preservative is possible. This is particularly advantageous because with a simultaneous preservation of the tool, a further working step can be saved. Especially after disassembling the tool from the bending machine and even before storage in the tool storage is an ideal time to preserve the tool and thus protect against corrosion.
  • the machining system contains at least one further cleaning unit, which is movable from the manipulation device to the bending tool or to the tool, and can be displaced along these in a contacting manner.
  • the advantage here is that not only the attachment portion of the bending tool can be cleaned by this measure, but that all other surfaces of the bending tool can be cleaned. The cleaning process is thus not only possible if the bending tool is removed from the tool holder, but also during normal operation of the bending press, or in intermediate breaks. Furthermore, it can be achieved by a mobile cleaning unit that the tool holder can be cleaned.
  • the main body of one of the cleaning units has a gripping recess which can be coupled to the manipulation device and / or the backgauge device.
  • the advantage here is that thereby the cleaning units can be handled automatically. Coupling units are used, which are already used for handling bending tools, or stop elements. This allows the machine to be designed economically and very universally applicable.
  • the elastic wiper element is removable from the main body and exchangeable. The advantage here is that not have to be replaced by a way to replace the elastic stripping the entire cleaning unit once it has contamination or excessive wear, but that the elastic wiper can be changed, which is subject to excessive wear.
  • one of the cleaning units comprises at least one air nozzle.
  • the advantage here is that it can be achieved by using an air nozzle that impurities in the form of larger solids, as well as small dust particles, can be easily blown off already with the air nozzle.
  • the elastic stripping element is less stressed.
  • the elastic stripping element comprises a section of a sponge-like material. This is particularly advantageous because the sponge-like material, for example, can easily absorb a preservative. Furthermore, it is advantageous in a spongy material that contaminants can be well absorbed. When selecting the sponge-like material, it is important to use a material that is not destroyed by sharp edges on the surfaces to be cleaned.
  • the elastic stripping element comprises at least one rubber lip.
  • This rubber lip can serve to remove the contaminants well from the surface to be cleaned. The rubber lip itself can then be very well freed from these impurities.
  • a rubber lip can be made of a material which is very wear-resistant.
  • at least one holder for the second cleaning unit is present. This holder is used to store the cleaning unit when it is not in use. Thus, the position of the second cleaning unit, if not used, is precisely defined, whereby it can be picked up by the manipulating device at any time.
  • one of the cleaning units comprises at least one suction device.
  • This suction suck in large dirt very well, and thus can remove them.
  • the exhaust device By optimal placement of the exhaust device, the surface to be cleaned can thus be very well pre-cleaned before the elastic stripping element is used.
  • one of the cleaning units comprises a translatory or rotary drive for the elastic stripping element or for the entire cleaning unit. It is particularly advantageous here that the cleaning action can be increased by the translatory or rotatory drive. On the one hand micromotion can be applied, which are high-frequency and thus increase the cleaning effect. On the other hand, the cleaning unit can, for example, be rotated about its center axis in order to achieve a good cleaning effect by increasing the relative movements.
  • FIG. 1 shows a processing system with a manipulation device and a laterally mounted tool storage with an integrated cleaning unit and a further cleaning unit.
  • FIG. 2 shows a detailed view of the laterally mounted cleaning unit in the working insert, as well as a further cleaning unit in the tool store;
  • FIG. 3 shows a detailed view of a further cleaning unit;
  • FIG. 4 shows the further cleaning unit in operation on the bending machine
  • FIG. Fig. 5 shows another embodiment of a cleaning unit in the form of a rotating brush.
  • a processing plant 1 comprising a bending press 2, in particular for the bending of sheets 3, with a fixed pressing beam 4 and a relative to this adjustable pressing bar 5 is shown in a perspective view.
  • a tool holder 6 is integrated, in which the bending tool 7 can be accommodated.
  • the bending press 2 comprises a backgauge device 8, which serves for striking sheet metal 3.
  • the backgauge device 8 can also be designed in such a way that bending tools can be manipulated or that other tools or devices or even metal sheets 3 can be gripped.
  • a manipulation device 9 which is used in an automated processing system 1.
  • the manipulation device 9 is designed such that it can remove a sheet 3 to be processed from a feed device or an intermediate storage and then insert it into the bending press 2 so that it is processed there. For several complicated steps, it is also possible that the manipulation device 9 must clamp the sheet 3 to be bent during a processing sequence several times in different ways. Because of these sometimes very complex movements It is necessary that the manipulation device 9 has a high mobility, which is realized by the use of multiple rotary or linear drives. Also shown is a tool attached to the bending press 2 memory 10, which serves for receiving various tools, such as gripping tools 11 of the manipulation device 9.
  • FIG. 2 shows a perspective detailed view of the tool storage device 10. Also shown is the manipulation device 9, which can grip a bending tool 7 by means of a gripping tool 11 attached to the manipulation device 9.
  • the gripping tool 11 need not grasp the bending tool 7 as shown in this figure, but preferably the gripping tool 11 will grasp the bending tool 7 in a precisely defined position and at a precisely defined point. Rather, this representation was chosen to graphically represent a recording of the bending tool 7 by the gripper tool 11 can.
  • the gripping tool 11 can equip the bending tool 7 on the bending press 2 or move to a tool storage for bending tools 7. Furthermore, the bending tool 7 can be moved in the direction of movement 15 by the manipulation device 9 in such a way that the attachment section 16 of the bending tool 7 is pulled through the cleaning unit 12, whereby dirt present on the attachment section 16 is cleaned off. In this case, the fastening section 16 of the bending tool 7 is contacted by an elastic stripping element 17 of the cleaning unit 12 and thus cleaned.
  • the cleaning must, as already mentioned in the description of advantages, not be limited to the mounting portion 16 of the bending tool 7, but rather also other parts of the bending tool 7 can be cleaned in one step.
  • the elastic stripping element 17 consists in the embodiment shown in Fig. 2 of a sponge-like material 18 which is due to the porous structure ideally formed to receive the stripped dirt particles. In order to achieve a good result of the cleaning, it makes sense that the spongy material 18 to the contour or to the surface 19 of the workpiece to be cleaned, for example, the attachment section 16 of a bending tool 7 is adjusted.
  • the attachment portion 16 of a bending tool 7 along the direction of movement 15 it is useful if beveled surfaces 20 are provided, which, as shown here, the elastic stripping 17 expand such that during movement in the direction of movement 15, the elastic wiper 17 only after a certain immersion depth with the surface 19 to be cleaned of the bending tool 7 comes into contact.
  • the cleaning section 21 of the elastic stripping element 17 is designed in its contour so that it is compressed by the surface 19 during the cleaning process, resulting in a slight Pressing force of the elastic element results on the surface to be cleaned.
  • a cleaning unit 12 as shown in Fig. 2, this means that a recess 22 in the cleaning section 21 is made smaller than the mounting portion 16 of the bending tool 7.
  • the cleaning unit 12 would have to be designed when in the bending tool 7 has a recess would be provided, which would be cleaned up.
  • the elastic stripping element 17 would have to be a projecting element which is made slightly larger than the recess of the bending tool 7 to be cleaned, whereby the protruding elastic stripping element 17 is compressed.
  • an element may for example be an air nozzle 23, which is aligned directly on the surface 19 to be cleaned and thus can remove coarse-grained dirt particles.
  • a suction device 24 can be provided, which removes coarser dirt particles from the surface 19 to be cleaned.
  • a feeder 25 which introduces a cleaning and / or preservative in the elastic stripping 17.
  • FIG. 3 shows a perspective view of a further cleaning unit 13, which is used for cleaning surfaces 19 to be cleaned on the bending press 2.
  • the further cleaning unit 13 consists of a base body 26 on which the elastic From streif dement 17 is applied.
  • the main body 26 has a gripping recess 27 into which a gripping tool 11 can engage to clamp this.
  • beveled surfaces 20 form the edge region of the elastic stripping element 17 so that it can be easily introduced into a surface 19 to be cleaned, which is in the form of a recess.
  • a rubber lip 28 which is integrated in the elastic Ab grazing element 17 and can be used particularly well for cleaning. Shown here is a combination of sponge-like material 18 and rubber lip 28.
  • each element may be executed individually on a cleaning unit 12 or 13.
  • the contact surface 29 between the base body 26 and elastic stripping 17 forms a bond, which can be easily solved, so that the elastic stripping element 17 removed in case of gross contamination and can be replaced by a new scraping 17 off.
  • a Velcro system may be provided, which serves for fastening of the elastic stripping element 17.
  • other connections such as a positive connection may be provided to secure the elastic stripping element 17 to the base body 26.
  • additional elements such as an air nozzle 23, a suction device 24 or a feeder 25 may be attached, which fulfill the functions already described.
  • FIG. 4 shows a perspective view of a further cleaning unit 13, which is received by a gripping tool 11 of a manipulation device 9 in the gripping recess 27.
  • the further cleaning unit 13 is guided in a further movement direction 30 over the surface 19 to be cleaned, for example, the tool holder 6, so that it is cleaned.
  • care is again taken that the contour of the elastic stripping element 17 is adapted to the surface 19 to be cleaned so that all possible recesses and protruding elements can be optimally cleaned.
  • a further cleaning unit 13 can not only be moved by a manipulation device 9, but it is also conceivable that a rear shock device 8 is used for the manipulation of this further cleaning unit 13.
  • FIG. 1 shows a perspective view of a further cleaning unit 13, which is received by a gripping tool 11 of a manipulation device 9 in the gripping recess 27.
  • the further cleaning unit 13 is guided in a further movement direction 30 over the surface 19 to be cleaned, for example, the tool holder 6, so that it is cleaned.
  • FIG. 5 shows, in a perspective view, a further and optionally independent embodiment of the cleaning unit 12 or the further cleaning unit 13, with the same reference numerals or component designations being used again for the same parts as in the preceding FIGS. 1-4.
  • a rotating brush head 31 is used to clean off bending tools 7 or other surfaces 19 to be cleaned accordingly.
  • the elastic stripping element 17 is in the form of bristles which are attached to the brush head 31.
  • a rotary drive 33 Shown as an additional element is a rotary drive 33, which is used as a rotary drive of the brush head 31.
  • the exemplary embodiments show possible embodiments of the cleaning units 12 and 13, wherein it should be noted at this point that the invention is not limited to the specifically illustrated embodiments of the same, but rather also various combinations of the individual embodiments are possible with each other and this variation possibility due to the teaching to technical action by objective invention in the skill of those working in this technical field expert. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Abstract

L'invention concerne une installation d'usinage (1) comprenant une presse à plier (2), destinée notamment au pliage de tôle (3), équipée d'un sommier fixe (4) et d'un sommier (5), mobile par rapport au sommier fixe, sur lesquels est monté ou intégré un attachement d'outil (6), et d'au moins un outil de pliage (7) doté d'une portion de fixation servant à le fixer dans l'attachement d'outil (6). L'installation comporte en outre au moins un dispositif de manipulation (9), servant à manipuler les outils de pliage (7) et/ou les tôles (3), ou un dispositif à butée arrière (8), servant à assister le positionnement des tôles (3), ainsi qu'une unité de nettoyage (12) constituée d'un corps de base sur lequel est monté au moins un élément racleur élastique. L'outil de pliage (7) peut être déplacé du dispositif de manipulation (9) vers l'unité de nettoyage (12) et il peut coulisser le long de l'élément racleur élastique, de sorte qu'au moins une partie de la portion de fixation se trouve en contact avec l'élément racleur élastique pendant le coulissement.
EP14757829.8A 2013-07-11 2014-07-10 Dispositif de nettoyage pour plieuse Active EP3019288B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT504512013A AT514324B1 (de) 2013-07-11 2013-07-11 Reinigungseinrichtung für eine Biegemaschine
PCT/AT2014/050156 WO2015003199A1 (fr) 2013-07-11 2014-07-10 Dispositif de nettoyage pour plieuse

Publications (2)

Publication Number Publication Date
EP3019288A1 true EP3019288A1 (fr) 2016-05-18
EP3019288B1 EP3019288B1 (fr) 2017-04-26

Family

ID=51428989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14757829.8A Active EP3019288B1 (fr) 2013-07-11 2014-07-10 Dispositif de nettoyage pour plieuse

Country Status (3)

Country Link
EP (1) EP3019288B1 (fr)
AT (1) AT514324B1 (fr)
WO (1) WO2015003199A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116000163A (zh) * 2023-01-05 2023-04-25 长江精工钢结构(江苏)有限公司 一种钢结构生产用可自调弯度的液压数控折弯机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104785582B (zh) * 2015-05-05 2016-11-02 福建龙岩尔彬农业发展有限责任公司 便携式简易金属薄板折弯装置
AT517347B1 (de) * 2015-10-15 2017-01-15 Trumpf Maschinen Austria Gmbh & Co Kg Verfahren zum Betreiben einer Biegepresse
IT201700007989A1 (it) * 2017-01-25 2018-07-25 Fastachange S R L Sistema di cambio utensile in presse piegatrici
CN110000135B (zh) * 2019-04-28 2023-07-21 安徽机电职业技术学院 一种方形板材的表面自动清洁设备
AT526628A1 (de) * 2022-03-14 2024-05-15 Trumpf Maschinen Austria Gmbh & Co Kg Reinigungswerkzeug für Biegemaschinen
WO2024081987A1 (fr) * 2022-10-18 2024-04-25 Trumpf Maschinen Austria Gmbh & Co. Kg. Outil de nettoyage pour machines à cintrer

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JPS6033828A (ja) * 1983-08-02 1985-02-21 Amada Co Ltd プレスブレーキ
CH668035A5 (en) * 1986-09-19 1988-11-30 Beyeler Machines Sa Folding press with die or matrix replacement system - has arms on rear mobile supports having pins which engage with holes in dies and matrices
JPH033828A (ja) * 1989-05-31 1991-01-09 Ricoh Co Ltd 多段給紙装置
JP2001079624A (ja) * 1999-09-14 2001-03-27 Murata Mach Ltd プレス機械
JP2002239653A (ja) * 2001-02-13 2002-08-27 Amada Co Ltd メッキ鋼板の曲げ加工装置及びメッキ粉清掃用治具
JP2004237286A (ja) 2003-02-03 2004-08-26 Amada Co Ltd プレスブレーキ
JP2007289978A (ja) * 2006-04-22 2007-11-08 Amada Co Ltd 曲げ加工装置
KR100967422B1 (ko) * 2009-07-17 2010-07-01 이문효 보강재 타발장치 및 이를 이용한 보강재접착시스템

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116000163A (zh) * 2023-01-05 2023-04-25 长江精工钢结构(江苏)有限公司 一种钢结构生产用可自调弯度的液压数控折弯机
CN116000163B (zh) * 2023-01-05 2023-09-22 长江精工钢结构(江苏)有限公司 一种钢结构生产用可自调弯度的液压数控折弯机

Also Published As

Publication number Publication date
EP3019288B1 (fr) 2017-04-26
AT514324A4 (de) 2014-12-15
WO2015003199A1 (fr) 2015-01-15
AT514324B1 (de) 2014-12-15

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