EP0340426A2 - Presse automatique à estamper pour découper les convercles de boîtes en feuilles de tôle - Google Patents

Presse automatique à estamper pour découper les convercles de boîtes en feuilles de tôle Download PDF

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Publication number
EP0340426A2
EP0340426A2 EP89104388A EP89104388A EP0340426A2 EP 0340426 A2 EP0340426 A2 EP 0340426A2 EP 89104388 A EP89104388 A EP 89104388A EP 89104388 A EP89104388 A EP 89104388A EP 0340426 A2 EP0340426 A2 EP 0340426A2
Authority
EP
European Patent Office
Prior art keywords
pair
sheet
rollers
tool
rolls
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Withdrawn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
EP89104388A
Other languages
German (de)
English (en)
Other versions
EP0340426A3 (fr
Inventor
Hans-Jürgen Biltzinger
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.)
Karges-Hammer-Maschinen & Co KG GmbH
Original Assignee
Karges-Hammer-Maschinen & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karges-Hammer-Maschinen & Co KG GmbH filed Critical Karges-Hammer-Maschinen & Co KG GmbH
Publication of EP0340426A2 publication Critical patent/EP0340426A2/fr
Publication of EP0340426A3 publication Critical patent/EP0340426A3/fr
Withdrawn legal-status Critical Current

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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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • B21D43/24—Devices for removing sheets from a stack
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/26—Stops

Definitions

  • the invention relates to an automatic punching machine for punching out can lids from sheet metal sheets with a feed device which pushes the sheet metal sheets into the tool and transports them step by step to carry out the punching processes which occur one after the other.
  • Well-known and well-proven feeding devices consist of ratchet rails that are gradually advanced and that advance the scrolled or unscrolled sheets.
  • the feed rate is limited due to the acceleration processes to be mastered.
  • Another disadvantage is that when the format of the metal sheets is changed, the feed device must be converted in order to ensure an exact feed even in the changed metal sheet format. With the known devices, it is also not possible to perform the punching on two successive metal sheets without an idle stroke.
  • the invention has for its object to provide a punching device of the type mentioned that an exact feeding of the sheet to the tool can be achieved even at high feed speeds, a mechanical conversion of the device when changing the format is no longer necessary and the punching of successive sheets without intermediate stroke can be executed.
  • a first pair of rollers which is arranged in front of the tool in the feed direction and can be driven by a numerical drive and which rests with an upper roller on the top side and with a lower roller on the underside of the metal sheet
  • Corresponding second pair of rollers on the opposite side of the tool and by a control system by which the first pair of rollers continuously pulls the sheet from a waiting position into the tool and then immediately switches to a step-by-step drive, by means of which the step-by-step drive after a replacement predetermined transport path in the tool is switched from the first pair of rollers to the second pair of rollers and by means of which the second pair of rollers is switched to a continuous extension movement after the step-by-step drive, a subsequent sheet metal plate being drawn in by the first pair of rollers without any space up to the previous sheet metal plate , while the second pair of rollers is still advancing step-by-step and while the incremental advance is being carried out by the
  • one roller is regularly arranged in alignment with the transport plane and the other roller is pivotally or displaceably mounted so that it can form a roller gap with the stationary roller for slip-free transport of the metal sheets.
  • the arrangement of pairs of rollers on the inlet side and on the outlet side for the metal sheets makes it possible to transport the metal sheet in a controlled manner at any time, and high accelerations can also be achieved without reducing the accuracy of the positioning of the metal sheet.
  • only one pair of rollers takes over the gradual advancement of the metal sheet. If the sheet of metal protrudes into the nip of the other pair of rolls, this pair of rolls only serves to guide the sheet of metal, but not to drive it.
  • the second pair of rollers takes over the further drive, so that the first pair of rollers only takes on management functions.
  • the following sheet of metal is inserted into the tool by the first pair of rollers exactly to the extent that it connects to the leading sheet of metal, which is moved step by step by the second pair of rollers, without a space.
  • the first pair of rollers takes over the step-by-step advance of the subsequent sheet, while the second pair of rollers makes an extension movement after punching out.
  • a device for fixing a zero point position of the sheet metal plate is preferably provided before the drive of the first pair of rollers is switched on, that is to say after the sheet metal plate has been inserted into the roller gap of the first pair of rollers.
  • this device can be formed by a stop which can be moved into the transport plane and against which the metal sheet is transported before it is inserted into the tool in a controlled manner by the first pair of rollers.
  • the zero point position can also be detected by a sensor, for example a light barrier.
  • the drawing shows an automatic punching machine 1 which has a punching tool 2 for punching out can lids of any shape.
  • a magazine 4 with metal sheets 5, of which the bottom metal sheet 5 is pulled down into a transport plane 7 with suction cups 6.
  • a slide 8 which is displaceable in the transport plane 7 in the direction of the punching press 1 and back, the metal sheet 5 is pushed into the effective range of a pair of rollers 9 against a stop 10.
  • the pair of rollers consists of a lower, stationary roller 11, the upper peripheral edge of which is aligned with the transport plane 7 and the working plane for the punching tool 2.
  • a pivot lever 12 On a pivot lever 12, the pivoting movement of which is characterized by a double arrow A, there is an upper roller 13 which can be pivoted against the lower roller 11 with pressure.
  • the stop 10 can be steered out of the transport plane 7 when the roller gap formed by the two rollers 11, 12 of the roller pair 9 is closed, ie the roller pair 9 controls the movement of the metal sheet 5.
  • the lower roller 11 is connected to a numerically controlled drive 15 via a rotating belt 14.
  • the sheet metal plate 5 drawn by the suction cups 6 into the transport plane 7 is pushed against the stop 10 with the slide 8, the roller pair 9 being opened by lifting the upper roller 13.
  • the pair of rollers 9 is closed by lowering the upper roller 13.
  • the stop 10 is pivoted out of the conveying plane 7. Now the pair of rollers 9 pushes the sheet 5 under the tool 2 with the aid of the numerically controlled drive 15, so that the sheet 5 connects to the preceding sheet 5 without any space.
  • the sheet metal plate 5 is transported forward step by step to carry out further punching processes.
  • the front end of the sheet metal plate 5 enters the feed nip of the second pair of rollers 17 on the outlet side 16 of the automatic punching machine after this second pair of rollers 17 has transported the preceding sheet metal plate out of the tool in one push-out movement.
  • the drive 15 for the first pair of rollers 9 is ineffective and the drive 20 for the second pair of rollers 17 is activated.
  • the second pair of rollers 17 now takes over the further step-by-step transport of the metal sheet 5 to carry out the further punching operations, while the first pair of rollers now only performs a guiding function for the metal sheet 5 as long as the end thereof is still in the nip of the first pair of rollers 9. If the metal sheet 5 has run out of the area of the first pair of rollers 9, the stop 10 is pivoted back into the transport plane 7 and the next metal plate 5, brought into the transport plane 7 by the suction cups 6, can be pushed by the slide 8 against the stop 10. After driving the stop 10 down, the first pair of rollers 9 pulls the a new metal sheet 5 in the tool 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Closing Of Containers (AREA)
EP89104388A 1988-05-04 1989-03-13 Presse automatique à estamper pour découper les convercles de boítes en feuilles de tôle Withdrawn EP0340426A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3815609 1988-05-04
DE3815609 1988-05-04

Publications (2)

Publication Number Publication Date
EP0340426A2 true EP0340426A2 (fr) 1989-11-08
EP0340426A3 EP0340426A3 (fr) 1990-05-23

Family

ID=6353864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104388A Withdrawn EP0340426A3 (fr) 1988-05-04 1989-03-13 Presse automatique à estamper pour découper les convercles de boítes en feuilles de tôle

Country Status (2)

Country Link
EP (1) EP0340426A3 (fr)
DD (1) DD283782A5 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006014454B3 (de) * 2006-03-29 2007-11-08 Hoffmann, Frank Stanzvorrichtung mit Zuführeinrichtung
CN100509371C (zh) * 2007-02-05 2009-07-08 山东丽鹏股份有限公司 铝防盗盖全自动冲压机
CN111036724A (zh) * 2019-12-25 2020-04-21 青岛靓塔钢结构有限公司 折弯机用上料装置
CN112207199A (zh) * 2020-09-15 2021-01-12 山东环球印铁制罐有限公司 食品包装罐金属盖冲压成型装置
CN115488224A (zh) * 2022-11-17 2022-12-20 盐城市日盛机械有限公司 一种配电箱加工设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4345348C2 (de) * 1993-03-24 1997-01-30 Blechbearbeitungsmaschinenwerk Umstelleinrichtung der Vereinzelungseinrichtung auf andere Blechstreifenformate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849230A (en) * 1956-07-19 1958-08-26 Danly Mach Specialties Inc Hydraulically clamped stock feed assembly for power presses
US4436007A (en) * 1981-03-30 1984-03-13 The Boeing Company Automated feed for a punch press and method of using same
DD219400A1 (de) * 1983-11-30 1985-03-06 Ammendorf Waggonbau Vorschubeinrichtung zur streifenmaterialzu- und -abfuehrung, insbesondere an blechbearbeitungsmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849230A (en) * 1956-07-19 1958-08-26 Danly Mach Specialties Inc Hydraulically clamped stock feed assembly for power presses
US4436007A (en) * 1981-03-30 1984-03-13 The Boeing Company Automated feed for a punch press and method of using same
DD219400A1 (de) * 1983-11-30 1985-03-06 Ammendorf Waggonbau Vorschubeinrichtung zur streifenmaterialzu- und -abfuehrung, insbesondere an blechbearbeitungsmaschinen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006014454B3 (de) * 2006-03-29 2007-11-08 Hoffmann, Frank Stanzvorrichtung mit Zuführeinrichtung
CN100509371C (zh) * 2007-02-05 2009-07-08 山东丽鹏股份有限公司 铝防盗盖全自动冲压机
CN111036724A (zh) * 2019-12-25 2020-04-21 青岛靓塔钢结构有限公司 折弯机用上料装置
CN112207199A (zh) * 2020-09-15 2021-01-12 山东环球印铁制罐有限公司 食品包装罐金属盖冲压成型装置
CN112207199B (zh) * 2020-09-15 2022-08-05 山东环球印铁制罐有限公司 食品包装罐金属盖冲压成型装置
CN115488224A (zh) * 2022-11-17 2022-12-20 盐城市日盛机械有限公司 一种配电箱加工设备

Also Published As

Publication number Publication date
DD283782A5 (de) 1990-10-24
EP0340426A3 (fr) 1990-05-23

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