EP2042279A1 - Cage de laminoir de presse et procédé de découpage à rotation - Google Patents

Cage de laminoir de presse et procédé de découpage à rotation Download PDF

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Publication number
EP2042279A1
EP2042279A1 EP08016835A EP08016835A EP2042279A1 EP 2042279 A1 EP2042279 A1 EP 2042279A1 EP 08016835 A EP08016835 A EP 08016835A EP 08016835 A EP08016835 A EP 08016835A EP 2042279 A1 EP2042279 A1 EP 2042279A1
Authority
EP
European Patent Office
Prior art keywords
punching
roller
rotational speed
tool
stand according
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.)
Withdrawn
Application number
EP08016835A
Other languages
German (de)
English (en)
Inventor
Malcom Langford
Christoph Klee
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.)
S and C Marker GmbH
Original Assignee
S and C Marker GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by S and C Marker GmbH filed Critical S and C Marker GmbH
Publication of EP2042279A1 publication Critical patent/EP2042279A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • B26F1/06—Perforating by punching, e.g. with relatively-reciprocating punch and bed with punching tools moving with the work
    • B26F1/10—Roller type punches

Definitions

  • the invention relates to a stamping mill and a rotary punching method.
  • Stamped rolling stands are well known, for example EP 0 952 905 B1 or DE 10 2005 060 578 A1 , They are often used where pieces of band-shaped material are to be cut out.
  • shear cutting is frequently used during punching, that is to say the cutting of workpieces between two cutting edges which move past one another. It is understood as an open section to move towards each other of the two cutting, both cutting are moved.
  • a stamping tool often referred to as a punch is inserted into the recess of a die.
  • “Punching” refers to punching in which the cut pieces are considered waste and the remaining piece, such as the remaining metal band, gives the workpiece to be made. When “cutting”, the cut piece is the workpiece, while the remaining material is considered waste.
  • the invention has the object to provide a stamping mill and a rotary punching method, which allow to produce workpieces with different hole arrangements or cut out at least at a higher frequency.
  • the invention is based on the idea of varying the rotational speed of the roller.
  • the roller according to the invention is moved at a first rotational speed when the punching tool is at least partially in the punching area, and moved at at least one different rotational speed when the punching tool is outside the punching area.
  • This procedure makes it possible to vary the time it takes for the punching tool to orbit after it has left the punching area and before it can reenter the punching area.
  • Increasing the rotation speed leads to a reduction in the hole spacing. For punching, this results in the hole spacing on the workpiece being reduced. For cutting, this results in workpieces being produced at a higher frequency.
  • the invention can be used to reduce the rotational speed between the exit from the punching area and the re-entry into the punching area. This increases the hole spacing on the workpiece during punching.
  • punching tool may be moved during its revolution after exiting the punching area and before re-entering the punching area at different rotational speeds.
  • special acceleration or deceleration speed sequences may be provided.
  • further punching tools may be provided on the roller, which are to enter at different time intervals in the punching area.
  • a second punching tool may be provided which is intended to produce a hole at a relatively short distance from the hole produced by a first punching tool.
  • the rotational speed between the exit of the first punching tool and the entry of the second punching tool can be increased in order to reduce the time between the exit of the first punching tool and the entry of the second punching tool.
  • a third punching tool is to produce a third hole with a greater distance from the second hole, the roller can be rotated at a slower speed after the exit of the second punching tool and before the entry of the third punching tool.
  • the punching roll stand according to the invention has a roll, on the peripheral surface of which at least one punching tool is provided, which passes through a punching area during a rotation of the roll, in that it can engage in the material to be punched.
  • the punching tool generally enters the punching area with an edge leading in the direction of rotation and engages with this leading edge stamping material.
  • the front edge of the hole to be punched is generated in the feed direction of the material to be punched. It then takes place a cutting of the lateral edges of the hole to be punched by means of edges formed laterally on the punching tool.
  • the rear edge of the hole to be punched in the feed direction is generated by a rear edge of the punching tool in the direction of rotation.
  • the punching area defines the spatial area in which at least part of the punching tool is located in a spatial arrangement in which it can engage in punching manner in a material to be punched fed to the punching rolling mill stand.
  • the position of the material to be punched results in its passage through the punching mill from the usually provided feeders or, for example, from the arrangement of the punch carrying roller against a preferably provided second roller (so-called top and bottom rollers).
  • the stamping mill according to the invention has a drive to drive the roller for rotation.
  • the drive may be, for example, a servomotor.
  • the drive has sufficient dynamics and power (especially in terms of speed and torque) to be able to make rapid changes in the rotational speed.
  • the stamping stand according to the invention has a control with which the drive can be controlled so that the roller is moved at a first rotational speed, when the punching tool is at least partially in the punching area, and is moved with at least one other rotational speed, if the punching tool is located outside the punching area.
  • this control is designed, for example, mechanically, electrically, pneumatically or hydraulically.
  • the control is an electrical circuit. The use of an electrical circuit makes it possible, inter alia, to store various punching programs.
  • the punching roll stand according to the invention can be used without further modification or, for example, after a punching tool change to produce a wide variety of workpieces.
  • the stamped roll stand according to the invention has a second roller, which is arranged opposite the first roller in such a way that the punching area lies between the two rollers. It has been shown that stamped rolling stands with two opposing rollers, which form the punching area between them, can be operated particularly efficiently and require only little installation space. However, other designs of the stamped roll stand according to the invention are also conceivable.
  • the second roller has a recess for forming a die.
  • the second roller has as many recesses as the roller carrying the punching tool has punching tools.
  • the shape of the recess may be changed by inserts to adapt the shape of the die to the punching tool.
  • an ejector is provided in the recess, which is supported on at least one spring element.
  • the punched-out piece is pressed into the opening of the die and presses on the ejector together the spring elements therein.
  • the spring elements can relax and the punched-out piece is accelerated out of the die.
  • the die may have a through opening which leads to an inner recess of the roller. The punched-out piece can then fall inwardly through this opening and be ejected by suitable means, in particular a suitable shaping of the roller, from the interior of the roller, which is designed, for example, as a hollow roller.
  • the first roller is arranged on a first shaft and the second roller on a second shaft, wherein a gear arranged on the first shaft engages in a gear arranged on the second shaft.
  • the stamping mill has separate drives for the first and the second roller.
  • the punching tool is releasably connected to the roller. This allows to change the punching tool.
  • the bearing of the roller can be designed such that the roller can be easily removed from the framework. Thus, the change of a punching tool can be performed by changing the roller.
  • the stamping roll stand according to the invention has a measuring device for measuring the rotational speed of the roll.
  • a measuring device for measuring the rotational speed of the roll.
  • the measuring device can determine, for example, the rotational speed of a shaft carrying the roller or, for example, the rotational speed of a gear arranged on such a shaft.
  • the stamping mill according to the invention can be operated at feed rates for the material to be punched of 100 meters per minute. Further speed increases are conceivable. This increased speed in relation to conventional punching systems results above all from the movement of the punching tools during punching. If in the prior art, the movement of the material to be punched during the actual punching operation briefly interrupted, then in the stamping mill according to the present invention, the transport of the material to be punched can also be continued during the actual punching process.
  • the punching system may have a measuring device for measuring the feed rate of the material to be punched.
  • a measuring wheel which can be arranged at the inlet of the stamping mill and can touch the material, for example, from below.
  • the measuring wheel can be pressed against the material by a pneumatic cylinder. Above the material may be a free-running entry roller. The pressure in the pneumatic cylinder can ensure that there is constant secure contact between the measuring wheel and the material.
  • the measuring wheel itself may have an encoder that allows the speed to be recorded.
  • a top and a bottom roll are mounted on their shafts by shrinking.
  • feather keys can be provided for positioning.
  • the bearings of the shafts can take place via rolling bearings in a housing (fixed-lot storage).
  • the two waves can be connected via a toothing. This ensures that in a stamping mill with an upper and a lower roller, the two rollers are moved synchronously.
  • Particularly preferred is located on the lower roller a gear and on the upper roller two gears.
  • the two upper gears can be clamped to the lower gear, so that the teeth is substantially free of play. This is particularly important in order to achieve the highest possible degree of synchronicity between upper and lower rollers.
  • the gears can be located in the upper and lower rollers each have a groove into which a specially made fitting piece can be used. This ensures that the rollers and thus the tools are exactly in the correct position while the gears are braced against each other.
  • the attachment of the gears on the waves can be done via conical clamping elements.
  • a transmission which, for example, can have a transmission ratio of i equal to 20. This makes it possible to produce low speeds for the rollers in a drive with high speeds.
  • a helical planetary gear is used. This transmission has a high level of smoothness and positioning accuracy, high torsional stiffness and durability. Furthermore, it allows high acceleration torques and easy mounting to a drive.
  • connection of a drive shaft of the drive such as the transmission output shaft, with the shaft of a roll of the punching mill can be done via a dog clutch.
  • a jaw clutch is used, in which there is an elastomer layer between the two claws.
  • the purpose of the elastomeric layer is to avoid rigid starting, as would be the case with a pure metal-claw coupling.
  • the elastomeric layer undergoes a short deformation before completely transferring the torque to the opposite side. This makes starting easier.
  • the outer gear of the upper shaft may have a sensor that determines the position of the gear. From this, a control can calculate the position at which the tools are located. This is advantageous for the control of the punching process.
  • a lubrication and / or cleaning of the punching tools can be done via two brush lubrication units, which pass through the tools before the actual punching takes place.
  • the stamping roll stand according to the invention is used in a stamping plant.
  • a punching system can for example have a decoiler, is unwound from the strip-shaped material and fed to the stamping mill.
  • a punching system may additionally or alternatively have a measuring device for measuring the feed rate of the material to be punched. This makes it possible, in a preferred embodiment, to match the rotational speed of the roller when the punching tool is at least partially located in the punching area, to the feed rate of the material to be punched.
  • a punching system can also be followed by a profile rolling line.
  • a profile rolling line can be generated from the stamped material, a profile, such as components of cable trays or cable trays on which cables are stored or, for example, cable ladders or, for example, for the stud during drywall Plasterboard or as a substructure for the cladding of ceilings or walls with such gypsum plasterboard.
  • a punching system may, for example, also have a plurality of punching rolling stands.
  • the profile rolling line can be used to produce profiles for rail systems for the installation of electrical components.
  • different rail systems are used to fix components, for example in control cabinets.
  • a profile can be used, which can be used as a component in a roller door. Roller shutters consist of individual segments, some of which have gaps, so that daylight can shine through.
  • a strip guiding unit can be provided in front of the stamping mill stand. This can allow the shape and position-oriented leadership of the band.
  • the punching mill stand and the tape guiding unit can be screwed together on a base frame. This can be fixed in a foundation and thus give the necessary stability.
  • a punching tool arranged on the circumferential surface of a rotating roller passes through a punching area during the rotation of the roller in which it engages in the material to be punched.
  • the rotation method according to the invention provides that the roller rotates at a first rotational speed when the punching tool is at least partially in the punching area, and rotates at at least one different rotational speed when the punching tool is outside the punching area.
  • the roller rotates at a first rotational speed which produces circumferential movement of the punching tool corresponding to the feed rate of the material to be punched when the punching tool is at least partially in the punching section.
  • the other rotational speed may be faster or slower than the first rotational speed.
  • the punching roll stand according to the invention and the rotary punching method according to the invention are particularly preferred for punching (punching and / or cutting) of metals, particularly preferably of strip-shaped Metals, used.
  • the punching roll stand according to the invention and the rotary punching method according to the invention can also be used, for example, for punching (punching and / or cutting) plastics.
  • the punching roll stand according to the invention and the rotary punching method according to the invention can be used for shearing over rotation, for example for dividing the profiles produced in a profiling rolling mill into individual parts.
  • the punching roll stand according to the invention has a roll (upper roll) 1, on whose peripheral surface a punching tool 2 is provided.
  • the roll 1 is arranged opposite a second roll (lower roll) 3 so that a punching region is formed between the roll 1 and the roll 3.
  • the roller 3 has a recess 4 for forming a die. In the recess 4, an ejector is provided, which is supported by three gas springs.
  • Brush Lubrication Units 5, 6 clean and lubricate the punch and die.
  • the rollers 1, 3 are shrunk onto shafts 7, 8.
  • the shafts 7, 8 are supported by bearings in a framework 9.
  • a toothing 10 on the side of the framework 9.
  • This toothing which is not shown in more detail, has a toothed wheel on the shaft 8 of the lower roller and two toothed wheels on the shaft 7 of the upper roller.
  • the two upper gears are braced with the lower gear, so that the teeth is substantially free of play.
  • the shaft 8 of the lower roller is connected via a clutch 11 to a transmission output shaft of a transmission 12.
  • the transmission input shaft is connected to a drive 13.
  • the feed motor of a profile rolling plant which is connected downstream of the stamping mill.
  • the material to be punched here a metal strip
  • the decoiler has a motor that counteracts the rotary motion of the feed motor of the profile rolling mill and thus keeps the belt under tension on its way through the plant.
  • Fig. 2 shows this position of incipient engagement of the punching tool 2 in the recess 21.
  • a cutting operation follows along the lateral edges. This condition is in Fig. 3 shown. In turn, this is followed by a punching operation of the rear edge. This is in Fig. 4 shown.
  • the peripheral speed of the rolls is equal to the feed rate of the metal strip. This is the reason why both the speed of the metal belt (via the measuring wheel) and the speed of the rollers (via the sensor on the upper, outer gear) are measured.
  • the control of the system can thus adjust the peripheral speed of the rollers to the speed of the metal strip.
  • the system is able to realize different hole spacing in the profile. For this purpose, the speed of the rollers between the individual punching operations is changed. If the speed of the rollers were always coupled to those of the metal strip, only a distance would be possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP08016835A 2007-09-25 2008-09-24 Cage de laminoir de presse et procédé de découpage à rotation Withdrawn EP2042279A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007045977 2007-09-25

Publications (1)

Publication Number Publication Date
EP2042279A1 true EP2042279A1 (fr) 2009-04-01

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ID=40184877

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EP08016835A Withdrawn EP2042279A1 (fr) 2007-09-25 2008-09-24 Cage de laminoir de presse et procédé de découpage à rotation

Country Status (1)

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EP (1) EP2042279A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2487014A1 (fr) * 2011-02-10 2012-08-15 Hunkeler AG Procédé et dispositif destinés à l'estampillage ou à la perforation de bandes de matériaux se déplaçant
DE102012024154A1 (de) 2012-12-10 2014-06-12 Volkswagen Aktiengesellschaft Stanzeinrichtung und Verfahren zum Herstellen einer Durchbrechung
WO2015028778A1 (fr) * 2013-08-28 2015-03-05 Gkn Evo Edrive Systems Limited Appareil de poinçonnage à pas variable
CN106965248A (zh) * 2017-02-21 2017-07-21 赵咪咪 一种皮带轮驱动式绝缘胶皮打孔操作装置
DE102017205180A1 (de) * 2017-03-28 2018-10-04 Krones Ag Perforierwerk und Verfahren zum Perforieren eines flach gefalteten Folienschlauchs
CN110000851A (zh) * 2019-04-24 2019-07-12 上海宗力印刷包装机械有限公司 一种非接触式圆压圆冲模
CN111438759A (zh) * 2020-04-21 2020-07-24 福建工程学院 一种高性能旋转模切刀具
DE102021129768A1 (de) 2021-11-15 2023-05-17 Manroland Goss Web Systems Gmbh Formatvariable Stanzvorrichtung und Verfahren hierzu

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6295908B1 (en) * 1999-12-17 2001-10-02 Canon Virginia, Inc. Selectively variable hole punching device
EP0952905B1 (fr) 1997-01-16 2001-12-05 SCHOBER GmbH Werkzeug- und Maschinenbau Dispositif de coupe par rotation d'un materiau en forme de bande
US6354180B1 (en) * 1998-12-04 2002-03-12 Hill Engineering, Inc. System for cutting sheet material
DE102005060578A1 (de) 2005-12-17 2007-06-21 Bikoma Ag Spezialmaschinen Vorrichtung zum Rotationsschneiden

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952905B1 (fr) 1997-01-16 2001-12-05 SCHOBER GmbH Werkzeug- und Maschinenbau Dispositif de coupe par rotation d'un materiau en forme de bande
US6354180B1 (en) * 1998-12-04 2002-03-12 Hill Engineering, Inc. System for cutting sheet material
US6295908B1 (en) * 1999-12-17 2001-10-02 Canon Virginia, Inc. Selectively variable hole punching device
DE102005060578A1 (de) 2005-12-17 2007-06-21 Bikoma Ag Spezialmaschinen Vorrichtung zum Rotationsschneiden

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2487014A1 (fr) * 2011-02-10 2012-08-15 Hunkeler AG Procédé et dispositif destinés à l'estampillage ou à la perforation de bandes de matériaux se déplaçant
DE102012024154A1 (de) 2012-12-10 2014-06-12 Volkswagen Aktiengesellschaft Stanzeinrichtung und Verfahren zum Herstellen einer Durchbrechung
DE102012024154B4 (de) 2012-12-10 2023-01-12 Volkswagen Aktiengesellschaft Stanzeinrichtung und Verfahren zum Herstellen einer Durchbrechung
US10160026B2 (en) 2013-08-28 2018-12-25 Gkn Evo Edrive Systems Limited Variable pitch punch apparatus
GB2518596B (en) * 2013-08-28 2016-01-20 Gkn Evo Edrive Systems Ltd Variable pitch punch apparatus
CN105745036A (zh) * 2013-08-28 2016-07-06 Gkn意沃电驱动系统有限公司 可变孔距冲孔装置
CN105745036B (zh) * 2013-08-28 2018-01-12 Gkn意沃电驱动系统有限公司 可变孔距冲孔装置
GB2518596A (en) * 2013-08-28 2015-04-01 Gkn Evo Edrive Systems Ltd Variable pitch punch apparatus
WO2015028778A1 (fr) * 2013-08-28 2015-03-05 Gkn Evo Edrive Systems Limited Appareil de poinçonnage à pas variable
CN106965248A (zh) * 2017-02-21 2017-07-21 赵咪咪 一种皮带轮驱动式绝缘胶皮打孔操作装置
DE102017205180A1 (de) * 2017-03-28 2018-10-04 Krones Ag Perforierwerk und Verfahren zum Perforieren eines flach gefalteten Folienschlauchs
CN110000851A (zh) * 2019-04-24 2019-07-12 上海宗力印刷包装机械有限公司 一种非接触式圆压圆冲模
CN111438759A (zh) * 2020-04-21 2020-07-24 福建工程学院 一种高性能旋转模切刀具
DE102021129768A1 (de) 2021-11-15 2023-05-17 Manroland Goss Web Systems Gmbh Formatvariable Stanzvorrichtung und Verfahren hierzu

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