EP4368359A1 - Agencement de poinçonnage et procédé de fonctionnement dumême - Google Patents

Agencement de poinçonnage et procédé de fonctionnement dumême Download PDF

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Publication number
EP4368359A1
EP4368359A1 EP23205150.8A EP23205150A EP4368359A1 EP 4368359 A1 EP4368359 A1 EP 4368359A1 EP 23205150 A EP23205150 A EP 23205150A EP 4368359 A1 EP4368359 A1 EP 4368359A1
Authority
EP
European Patent Office
Prior art keywords
die
punching
shoulder
punch
opening
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.)
Pending
Application number
EP23205150.8A
Other languages
German (de)
English (en)
Inventor
Martin Siebert
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.)
Bundesdruckerei GmbH
Original Assignee
Bundesdruckerei 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 Bundesdruckerei GmbH filed Critical Bundesdruckerei GmbH
Publication of EP4368359A1 publication Critical patent/EP4368359A1/fr
Pending legal-status Critical Current

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Classifications

    • 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
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D2007/1881—Means for removing cut-out material or waste using countertools

Definitions

  • the invention relates to a punching arrangement
  • a punching arrangement comprising a punching tool which has a punch which can be adjusted along a longitudinal axis and a die for punching out a punched piece, the die comprising a through-opening for the passage of the punched piece.
  • the punching arrangement also comprises a drivable conveyor belt which is arranged in the direction of fall below the through-opening of the die.
  • Punching tools are used to produce flat parts, including valuable or security products such as ID cards, but also cutouts from planar layers. This process is usually automated, which increases the production time and accuracy of the punching tool. With technically simple punching tools, the punched parts fall freely through the through hole of the punching die onto a conveyor belt running below. This often results in punched cards jamming in the punching tool. This always results in the production machine coming to a standstill and the production of rejects, as the plastic ID cards are easily scratched.
  • the punched-out valuable or security product i.e. the die-cut
  • ID 1, ID 2, ID 3 or any other format for example in booklet form, like a passport-like object.
  • the valuable or security product is generally a laminate made of several document layers that are bonded together in a precise fit using heat and increased pressure. These products should meet standardized requirements, for example ISO 10373, ISO/IEC 7810, ISO 14443.
  • the EN 10 2014 000 133 A1 describes a method in which a substrate and a filling material are guided on different levels, with a recess being punched out of the substrate in a first level and an element matching the recess being punched out in another level. The element is then inserted into the recess.
  • BPRI 0505689-6 A describes an arrangement in which a recess and a matching element are punched out of two different layers of wood, with the punched piece being inserted into the recess.
  • the punching arrangement according to the invention is characterized in particular by the fact that a shoulder protrudes into the through-opening to deflect a falling punched piece. This has the advantage of preventing the production of rejects, jamming of punched cards and the downtime of the entire punching arrangement.
  • the shoulder is laterally adjustable, as different punched pieces can then be deflected by means of the shoulder.
  • the shoulder projects radially into the through-opening. It maintains a distance from a center line of the through-opening such that the shoulder does not project beyond the center line of the through-opening.
  • the shoulder should extend no more than 25 percent into the Through opening so that a complementary portion of the through opening, for example at least 75 percent, remains free from the shoulder. This also ensures that the die-cut product does not get caught on the shoulder itself and thus no longer reaches the conveyor belt.
  • the shoulder is arranged on a side wall of the through-opening that is opposite to a transport direction of the conveyor belt.
  • the shoulder is arranged perpendicular to the longitudinal axis.
  • the shoulder is rounded at its edges to prevent damage to the blank.
  • the shoulder can be designed as a plate to ensure the tilting direction of the blank. However, it can also be designed as a rod, which creates a less complex arrangement that also requires less material.
  • the shoulder can also be made of elastic materials, such as rubber, to avoid blemishes on the blanks.
  • the through opening of the punching arrangement is designed to become wider in the direction of fall so that jamming is avoided.
  • the through-opening preferably widens continuously in the direction of the conveyor belt. This ensures that the die-cut product does not become wedged within the through-opening or through-opening when it sinks or falls down.
  • the through-opening widens continuously in the direction of the conveyor belt.
  • the die is provided with a longitudinally adjustable hold-down device on its side facing the punch.
  • the punch of the punching arrangement has a movable ejector. This ensures that the punched part is released from the substrate. The release of the This accelerates the punching of the blank and thus the entire punching process, ensuring that the blank lands on the desired side facing the conveyor belt.
  • the ejector can be adjusted independently of the punch along or parallel to the longitudinal axis. It is preferably coupled to a compressed air line and can be operated pneumatically. It is possible for the ejector to be operated via a mechanical coupling. Any other type of coupling that enables the ejector to be operated can also be used.
  • the die is preferably assigned a hold-down device on the side facing the stamp, with which the substrate is fixed before the stamp is adjusted.
  • the hold-down device can also be adjusted between two positions.
  • the end of the die facing away from the shoulder contacts the conveyor belt first, before the die comes to rest on the conveyor belt. This ensures that the die lands on the conveyor belt with the desired side. Jamming of the die is avoided.
  • the end of the die facing the shoulder is held back by the shoulder and therefore contacts the conveyor belt last. During the falling movement, the shoulder rotates the die about an axis oriented perpendicular to the direction of fall and perpendicular to the direction of transport.
  • the stamp preferably has a movable ejector that pushes the die through the through hole of the die in order to release the stamp. This ensures that the die is released safely from the punching tool.
  • the ejector is actuated pneumatically, in particular via a compressed air supply line, in order to to adjust it parallel to or along the longitudinal axis of the punch relative to the punch. By operating it with compressed air, the punching process remains very environmentally friendly and produces little pollution.
  • the punching arrangement 16 is shown in cross section with a punching tool 17 and a conveyor belt 8.
  • the punching tool 17 comprises a punch 1 that can be adjusted along a longitudinal axis and a die 2 for punching out a punched piece 10, the die having a through-opening 7 for the passage of the punched piece 10.
  • the drivable conveyor belt 8 is located in the falling direction below the through-opening 7 of the die 2. In the present case, this is designed as a driven rotating conveyor belt; with an upper run and a lower run. To deflect a falling punched piece 10, a shoulder 14 protrudes into the through-opening 7, in particular horizontally and parallel to a feed direction or a transport direction of the conveyor belt 8.
  • the shoulder 14 maintains a distance from a center line of the through-opening 7 such that the shoulder 14 does not protrude beyond the center line of the through-opening 7.
  • the shoulder 14 projects into the through-opening 7 to a maximum of 25 percent, so that a complementary portion, for example at least 75 percent, of the through-opening 7 remains laterally free from the shoulder 14.
  • the Shoulder 14 is arranged on the side wall of the through-opening 7, which is opposite to a transport direction of the conveyor belt 8, in order to prevent the punched product from jamming in the punching arrangement 16.
  • the shoulder 14 is arranged perpendicular to the longitudinal axis in the present case and the through-opening 7 is designed to become wider in the direction of fall.
  • the through-opening 7 widens continuously in the direction of the conveyor belt 8.
  • the through-opening 7 of the die 2 also widens continuously in the direction of the conveyor belt 8.
  • the shoulder 14 in the present embodiment is rounded at its edges in order to protect the punched product 10 from scratches. When the punched product 10 falls, it is rotated by the shoulder 14 about an axis oriented perpendicular to the direction of fall and perpendicular to the transport direction.
  • the distance between the die 2 and the conveyor belt 8 is smaller than the diameter of the punch 1, which prevents a rotation of the punched piece 10 of 90 degrees or more.
  • the die 2 is assigned an adjustable hold-down device 3 on its side assigned to the punch 1 in order to fix the substrate 6 during punching.
  • the punch 1 has a movable ejector 4. In Figure 1 this is in its starting position and Figure 2 in its extended position after the punched part 10 has been pressed out.
  • the ejector 4 is adjustable independently of the punch along or parallel to the longitudinal axis. In addition, it is coupled to a compressed air line 5 and can be operated pneumatically.
  • the die 2 is assigned a hold-down device 3 on its side facing the stamp 1, so that the substrate 6 is fixed by the hold-down device 3 before the stamp 1 is adjusted.
  • the present method is designed such that an end of the punch 10 facing away from the shoulder 14 first contacts the conveyor belt 8 before the punch 10 comes to lie flat on the conveyor belt 8.
  • the shoulder 14 rotates the punch 10 during the falling movement about an axis oriented perpendicular to the direction of fall and perpendicular to the direction of transport.
  • the stamp 1 has a movable ejector 4 which pushes the punched piece 10 through the through opening 7 in order to release the punched piece 10 from the stamp 1.
  • the ejector 4 is pneumatically actuated via a compressed air supply line 5 in order to adjust it parallel to or along the longitudinal axis of the stamp relative to the stamp 1.
  • the present invention is characterized by a simple structure that greatly reduces the scrap rate.
  • the integration of the shoulder 14 into the die 2, more precisely into the through hole 7, is associated with little or no significant costs. Machine downtimes are avoided and punched parts are passed on reliably.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP23205150.8A 2022-10-27 2023-10-23 Agencement de poinçonnage et procédé de fonctionnement dumême Pending EP4368359A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022128541.3A DE102022128541A1 (de) 2022-10-27 2022-10-27 Stanzanordnung und Verfahren zum Betreiben einer Stanzanordnung

Publications (1)

Publication Number Publication Date
EP4368359A1 true EP4368359A1 (fr) 2024-05-15

Family

ID=90624943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23205150.8A Pending EP4368359A1 (fr) 2022-10-27 2023-10-23 Agencement de poinçonnage et procédé de fonctionnement dumême

Country Status (2)

Country Link
EP (1) EP4368359A1 (fr)
DE (1) DE102022128541A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2009138A1 (en) * 1970-02-27 1971-09-02 Brown Boven & Cie AG, 6800 Mann heim Sheet stamping transfer device
GB2174635A (en) * 1985-04-26 1986-11-12 Schoen & Cie Gmbh Punching machine
WO2015104011A1 (fr) * 2014-01-13 2015-07-16 Melzer Maschinenbau Gmbh Procédé et dispositif de traitement d'un substrat

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3217159A1 (de) 1982-05-07 1983-11-10 Nienstedt, Heinz, 4350 Recklinghausen Vorrichtung zum zerteilen flacher, quaderfoermiger riegel in kleinere, flache quaderfoermige platten
DE4113568C1 (fr) 1991-04-25 1992-05-21 Curt 8122 Penzberg De Niebling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2009138A1 (en) * 1970-02-27 1971-09-02 Brown Boven & Cie AG, 6800 Mann heim Sheet stamping transfer device
GB2174635A (en) * 1985-04-26 1986-11-12 Schoen & Cie Gmbh Punching machine
WO2015104011A1 (fr) * 2014-01-13 2015-07-16 Melzer Maschinenbau Gmbh Procédé et dispositif de traitement d'un substrat
DE102014000133A1 (de) 2014-01-13 2015-07-16 Melzer Maschinenbau Gmbh Verfahren und Einrichtung zur Bearbeitung eines Substrats

Also Published As

Publication number Publication date
DE102022128541A1 (de) 2024-05-02

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