EP0401769B1 - Device for carrying away punched out regions of material from a sheet-like material - Google Patents

Device for carrying away punched out regions of material from a sheet-like material

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Publication number
EP0401769B1
EP0401769B1 EP90110648A EP90110648A EP0401769B1 EP 0401769 B1 EP0401769 B1 EP 0401769B1 EP 90110648 A EP90110648 A EP 90110648A EP 90110648 A EP90110648 A EP 90110648A EP 0401769 B1 EP0401769 B1 EP 0401769B1
Authority
EP
European Patent Office
Prior art keywords
punching cylinder
cylinder
punching
compressed air
fork
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.)
Expired - Lifetime
Application number
EP90110648A
Other languages
German (de)
French (fr)
Other versions
EP0401769A1 (en
Inventor
Björn Christoffersson
Jörgen Gerhardt
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.)
Gerhardt International AS
Original Assignee
Gerhardt, Jorgen
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 Gerhardt, Jorgen filed Critical Gerhardt, Jorgen
Publication of EP0401769A1 publication Critical patent/EP0401769A1/en
Application granted granted Critical
Publication of EP0401769B1 publication Critical patent/EP0401769B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B26F1/384—Cutting-out; Stamping-out using rotating drums
    • 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
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • Y10T83/0453—By fluid application
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/222—With receptacle or support for cut product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4838—With anvil backup

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • the object of the invention is to provide a device according to the preamble of claim 1, which is of simple construction and which allows strong compressed air blasts to be supplied to the outlet openings within the punched edges.
  • the path between the opening in the side surface of the fork or the ring part and the outlet openings in the punching cylinder can be kept short.
  • the fork or the ring part acts as a valve slide in relation to the inlet openings in the punching cylinder. This results in strong pulses of compressed air.
  • An embodiment according to claim 2 is particularly simple in terms of production technology. In order to adapt the position of the punching cylinder to the prevailing conditions, an embodiment according to claim 3 is preferred intended.
  • the configuration according to claim 4 provides simple handling, in particular in the case of adjustable punching cylinders.
  • a configuration according to claim 6 is preferably provided.
  • an embodiment according to claim 7 is preferably provided.
  • an embodiment according to claim 8 is preferably provided.
  • the punch cylinders can be short or long axially. If they are short, their shape is more like a disk than a cylinder in common usage.
  • the device is suitable for removing any sheet material from punched material areas, such as for removing stamping remnants from web edges perforated by stamping, but also for removing labels punched out of sheet material.
  • the punching cylinders can have the shape of punching rings, be designed as a solid body, be composed of segments or also consist of a carrier cylinder with a punching sleeve attached.
  • Fig. 1 shows in perspective two disc-shaped punch cylinders with forks cooperating with them.
  • Fig. 2 shows, partly in section, a view of a punch cylinder according to Fig. 1 from its narrow side with an associated fork.
  • Fig. 3 shows a side view of a punch cylinder according to Fig. 1 with an associated fork, partially in section.
  • Fig. 4 shows a punch cylinder with attached punch segments and an associated fork.
  • Fig. 5 shows a side view of a punch cylinder.
  • Fig. 6 shows a closed punching edge, in which a compressed air outlet opening lies.
  • Fig. 7 shows a closed punched edge in which two compressed air outlet openings are located.
  • Fig. 8 shows an end of a punch cylinder with a ring cooperating with it and a drive gear in an exploded view.
  • FIG. 9 shows a section along the line IX-IX in FIG. 8 according to the composition of the parts shown in FIG. 8.
  • FIG. 10 shows a box for receiving the punched-out material areas in its interaction with a punching cylinder and an abutment cylinder.
  • Figures 1 to 3 show a stationary, driven shaft 2, on the axially displaceable and lockable two disc-shaped punch cylinders 4, 6 are non-rotatably.
  • the rotationally fixed connection is brought about in that a wedge on the shaft engages in a groove 8 of the punching cylinders 4, 6.
  • the fork 30 is provided with a guide hole 42 which runs parallel to the shaft 2 and through which a shaft 44 passes.
  • the shaft 44 is in turn mounted radially displaceable relative to the shaft 2.
  • the fork 30 can thus axially and radially to the punch cylinder 4 or 6 respectively assigned to it be moved.
  • the fork 30 is stationary during operation and the punch cylinder 4 or 6 rotates.
  • the compressed air emerging from the opening 34 of the fork 30 thus passes successively into the inlet openings 18 of the short channels 14 and, if it cannot be introduced into one of the inlet openings 18 during the transition from one channel 14 to a subsequent channel 14, is stowed. This results in very high compressed air pulses.
  • an elongated carrier cylinder 60 of punched segments 62 is provided, which has axial pins 64, 66 for storage.
  • a drive gear 68 which extends at an axial distance from an end face of the support cylinder 60 and thus leaves space for a fork 70, which is basically designed in the same way as the fork 30 according to FIGS. 1 to 3.
  • Axial bores 72 which correspond to the bores 46
  • radial bores 74 which correspond to the radial bores 48, run in the carrier cylinder.
  • These radial bores 74 coincide with bores 76 in the punching segments 62.
  • each closed punching edge 78 of the punching segments 62 encloses four outlet openings 79.
  • FIG. 5 shows a punch cylinder 80 on which only one of a plurality of closed punch edges 82 is indicated.
  • Axial bores 84 which correspond to the axial bores 46, and radial bores 86, which correspond to the radial bores 48, extend through the punching cylinder 80.
  • a gear 92 is attached, on the outside of which there is a journal 94.
  • a bearing journal 98 is also attached to the other end face 96 of the punching cylinder 80.
  • the space 100 between the end face 88 and the gear 92 serves to accommodate the fork, not shown.
  • FIG. 6 shows a circularly closed punching edge 110, in which an outlet opening 112 opens centrally.
  • FIG. 7 shows an elongated, closed punched edge 120, in the end regions of which an outlet opening 122, 124 for compressed air opens.
  • FIGS. 8 and 9 show a punch cylinder 130 with projecting closed punch edges 132, within which outlet openings 134 for compressed air open.
  • the compressed air is fed to the outlet openings 134 via channels 136 which are formed within the punch cylinder 130 and have inlet openings 138 on a lateral annular surface 140 of the punch cylinder 130.
  • the annular surface 140 encloses a cylinder shoulder 142 on the punch cylinder 130, the peripheral surface 144 of which is a bearing surface for an annular part 146.
  • an opening 150 opens out in the circumferential direction of the punching cylinder 130, from which compressed air is to be supplied in sequence to the inlet openings 138 via a channel 152 in the ring part 146.
  • An assembly-serving fork part 154 is attached in one piece to the ring part 146.
  • the channel 152 ends on the inlet side in an internally threaded section 156, which can receive an externally threaded attachment 158 on a compressed air supply part 160.
  • the gear 164 is by means of screws 166, which pass through holes 168 in the gear 164, in threaded holes 170 of the end face of the cylindrical Screw approach 142.
  • FIG. 10 shows a punch cylinder 180 which interacts with a rotatably mounted abutment cylinder 182 arranged below it.
  • Sheet-shaped material to be punched out is passed through a gap between the punching cylinder 180 and the abutment cylinder 182 and is then discharged obliquely upwards via a rotatably mounted support roller 186.
  • the box 188 is designed on the inside as a kind of labyrinth, on the inner surfaces of which the punched-out material areas are repeatedly reflected, as indicated by solid arrows.
  • Compressed air partly flows through the box in a vortex shape, as indicated by dashed arrows.
  • a discharge nozzle 196 for the punched-out material areas opens, which is connected to a suction device, not shown.
  • the entry slot 192 is delimited at the bottom by a wall 198, which is directed approximately tangentially obliquely upwards to the abutment cylinder 182 and on which a doctor blade 202 is attached which scrapes the circumferential surface 200 of the abutment cylinder 182.
  • the inlet slot 192 of the box is delimited by a wall 204 pointing away from the punching cylinder 180, which in cross section forms approximately an L with the wall 206 of the box 188 adjoining it.

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)
  • Details Of Cutting Devices (AREA)
  • Making Paper Articles (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The invention relates to an apparatus for the removal of areas of material punched out from a material in sheet form by projecting, closed punching edges on the circumferential surface of at least one rotating punching cylinder by means of compressed air, which is fed into the punching cylinder and led out from the punching cylinder through outlet openings lying within the closed punching edges, wherein the compressed air from an opening in a side face of a member at least partially embracing the punching cylinder in a guided manner is fed to inlet openings assigned to the outlet openings, which inlet openings are located in a side face of the punching cylinder closely adjacent to the side face of the member.

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a device according to the preamble of claim 1.

Bei einer nach dem Prospekt "Preston" PE 752-7/85, Preston Engravers, INC., Windsor, vorbekannten Vorrichtung dieser Art wird in einen Axialkanal des Stanzzylinders durch ein axial verschiebbares Rohr, in dessen Wandung sich Löcher befinden, Druckluft eingeführt. Beidseitig dieser Löcher ist das Rohr gegenüber dem Kanal abzudichten. Diese Vorrichtung ist nicht nur konstruktiv kompliziert, sondern gestattet auch nicht, starke Druckluftimpulse den Austrittsöffnungen innerhalb der geschlossenen Stanzkanten zuzuführen.In a device of this type previously known according to the "Preston" PE 752-7 / 85 prospect, Preston Engravers, INC., Windsor, compressed air is introduced into an axial channel of the punch cylinder through an axially displaceable tube, in the wall of which there are holes. The pipe must be sealed on both sides of these holes in relation to the sewer. This device is not only structurally complicated, but also does not allow strong compressed air pulses to be fed to the outlet openings within the closed punched edges.

Aufgabe der Erfindung ist es, eine Vorrichtung nach dem Oberbegriff des Anspruchs 1 anzugeben,die einfach konstruiert ist und die es gestattet, den Austrittsöffnungen innerhalb der Stanzkanten starke Druckluftstöße zuzuführen.The object of the invention is to provide a device according to the preamble of claim 1, which is of simple construction and which allows strong compressed air blasts to be supplied to the outlet openings within the punched edges.

Die Lösung dieser Aufgabe ist in Anspruch 1 angegeben.The solution to this problem is specified in claim 1.

Der Weg zwischen der Öffnung in der Seitenfläche der Gabel oder des Ringteils und den Austrittsöffnungen im Stanzzylinder kann kurz gehalten werden. Die Gabel oder das Ringteil wirkt gegenüber den Eintrittsöffnungen im Stanzzylinder als Ventilschieber. Dies hat starke Druckluftimpulse zur Folge.The path between the opening in the side surface of the fork or the ring part and the outlet openings in the punching cylinder can be kept short. The fork or the ring part acts as a valve slide in relation to the inlet openings in the punching cylinder. This results in strong pulses of compressed air.

Herstellungstechnisch einfach ist besonders eine Ausführungsform entsprechend Anspruch 2. Um die Lage des Stanzzylinders den jeweils vorliegenden Verhältnissen anzupassen, ist bevorzugt eine Ausbildung gemäß Anspruch 3 vorgesehen.An embodiment according to claim 2 is particularly simple in terms of production technology. In order to adapt the position of the punching cylinder to the prevailing conditions, an embodiment according to claim 3 is preferred intended.

Eine einfache Handhabung insbesondere bei verstellbaren Stanzzylindern verschafft die Ausgestaltung nach Anspruch 4.The configuration according to claim 4 provides simple handling, in particular in the case of adjustable punching cylinders.

Besonders geeignete Materialien sind in Anspruch 5 angegeben.Particularly suitable materials are specified in claim 5.

Um die Zeitdauer, während der aus den Austrittsöffnungen des Stanzzylinders Druckluft austritt, in vorgegebener Weise bemessen zu können, ist bevorzugt eine Ausbildung nach Anspruch 6 vorgesehen.In order to be able to measure the length of time during which compressed air exits from the outlet openings of the punching cylinder, a configuration according to claim 6 is preferably provided.

Um den Impuls, den die ausgestanzten Materialbereiche durch die Druckluft erhalten, zu mindern und die ausgestanzten Materialbereiche aufzunehmen und weiterzuführen, ist bevorzugt eine Ausbildung gemäß Anspruch 7 vorgesehen.In order to reduce the momentum which the punched-out material areas receive from the compressed air and to take up and continue the punched-out material areas, an embodiment according to claim 7 is preferably provided.

Um zu erreichen, daß ausgestanzte Materialbereiche nicht an dem Eintrittsspalt des Kastens vorbeifliegen, ist bevorzugt eine Ausbildung nach Anspruch 8 vorgesehen.In order to ensure that punched-out material areas do not fly past the entry gap of the box, an embodiment according to claim 8 is preferably provided.

Besonders hohe Impulsverluste der ausgestanzten Materialbereiche erhält man durch die Ausbildung nach Anspruch 9, die den Innenraum des Kastens für die ausgestanzten Materialbereiche labyrinthartig macht.Particularly high momentum losses of the punched-out material areas are obtained by the design according to claim 9, which makes the interior of the box for the punched-out material areas labyrinthine.

Die Stanzzylinder können axial kurz oder lang sein. Sind sie kurz, so ähnelt ihre Form mehr einer Scheibe als einem Zylinder im üblichen Sprachgebrauch.The punch cylinders can be short or long axially. If they are short, their shape is more like a disk than a cylinder in common usage.

Die Vorrichtung eignet sich zum Abfördern von beliebigem blattförmigem Material aus gestanzten Materialbereichen, wie zum Abfördern von Stanzresten aus durch Stanzen gelochten Bahnrändern, aber auch zum Abfördern von aus blattförmigem Material ausgestanzten Etiketten. Die Stanzzylinder können die Form von Stanzringen haben, als Vollkörper ausgebildet sein, aus Segmenten zusammengesetzt sein oder auch aus einem Trägerzylinder mit aufgesteckter Stanzhülse bestehen.The device is suitable for removing any sheet material from punched material areas, such as for removing stamping remnants from web edges perforated by stamping, but also for removing labels punched out of sheet material. The punching cylinders can have the shape of punching rings, be designed as a solid body, be composed of segments or also consist of a carrier cylinder with a punching sleeve attached.

Die Erfindung wird im folgenden an Ausführungsbeispielen unter Hinweis auf die beigefügten Zeichnungen beschrieben.The invention is described below using exemplary embodiments with reference to the accompanying drawings.

Fig. 1 zeigt perspektivisch zwei scheibenförmige Stanzzylinder mit mit ihnen zusammenwirkenden Gabeln.Fig. 1 shows in perspective two disc-shaped punch cylinders with forks cooperating with them.

Fig. 2 zeigt, teils im Schnitt, eine Ansicht eines Stanzzylinders nach Fig. 1 von dessen Schmalseite aus mit zugeordneter Gabel.Fig. 2 shows, partly in section, a view of a punch cylinder according to Fig. 1 from its narrow side with an associated fork.

Fig. 3 zeigt eine Seitenansicht eines Stanzzylinders nach Fig. 1 mit zugeordneter Gabel, teilweise im Schnitt.Fig. 3 shows a side view of a punch cylinder according to Fig. 1 with an associated fork, partially in section.

Fig. 4 zeigt einen Stanzzylinder mit aufgesetzten Stanzsegmenten und zugeordneter Gabel.Fig. 4 shows a punch cylinder with attached punch segments and an associated fork.

Fig. 5 zeigt eine Seitenansicht eines Stanzzylinders.Fig. 5 shows a side view of a punch cylinder.

Fig. 6 zeigt eine geschlossene Stanzkante, in der eine Druckluft-Austrittsöffnung liegt.Fig. 6 shows a closed punching edge, in which a compressed air outlet opening lies.

Fig. 7 zeigt eine geschlossene Stanzkante, in der zwei Druckluft-Austrittsöffnungen liegen.Fig. 7 shows a closed punched edge in which two compressed air outlet openings are located.

Fig. 8 zeigt ein Ende eines Stanzzylinders mit einem mit ihm zusammenwirkenden Ring und einem Antriebszahnrad in Explosionsdarstellung.Fig. 8 shows an end of a punch cylinder with a ring cooperating with it and a drive gear in an exploded view.

Fig. 9 zeigt einen Schnitt längs der Linie IX - IX in Fig. 8 nach Zusammensetzung der in Fig. 8 dargestellten Teile.FIG. 9 shows a section along the line IX-IX in FIG. 8 according to the composition of the parts shown in FIG. 8.

Fig. 10 zeigt einen Kasten zur Aufnahme der ausgestanzten Materialbereiche in seinem Zusammenwirken mit einem Stanzzylinder und einem Widerlagerzylinder.10 shows a box for receiving the punched-out material areas in its interaction with a punching cylinder and an abutment cylinder.

Die Figuren 1 bis 3 zeigen eine ortsfest gelagerte, anzutreibende Welle 2, auf der axial verschiebbar und festlegbar zwei scheibenförmige Stanzzylinder 4, 6 drehfest sitzen. Die drehfeste Verbindung wird dadurch bewirkt, daß ein Keil auf der Welle in jeweils eine Nut 8 der Stanzzylinder 4, 6 eingreift.Figures 1 to 3 show a stationary, driven shaft 2, on the axially displaceable and lockable two disc-shaped punch cylinders 4, 6 are non-rotatably. The rotationally fixed connection is brought about in that a wedge on the shaft engages in a groove 8 of the punching cylinders 4, 6.

Auf der Umfangsfläche der Stanzzylinder 4, 6 befinden sich kreisförmige geschlossene Stanzkanten 10, in denen jeweils eine Austrittsöffnung 12 eines Kanals 14 mündet, der eine in einer Seitenfläche 16 des Stanzzylinders 4, 6 mündende Eintrittsöffnung 18 aufweist. Der Seitenfläche 16 steht ein Flansch 20 an einem zylindrischen Ansatz 22 des Stanzzylinders 4, 6 gegenüber, der einen kleineren Außendurchmesser hat als der Stanzzylinder 4, 6. Der dadurch entstehende Ringraum 24 ist Armen 26, 28 einer Gabel 30 angepaßt, in der sich ein Druckluftzuführungskanal 32 befindet. Dieser Druckluftzuführungskanal 32 endet in einer seitlichen Öffnung 34 des Arms 28 der Gabel 30 und weist am Schaftende 36 der Gabel 30 einen Anschlußstutzen 38 auf, an den ein Druckluftzuführungsschlauch 40 anzuschließen ist. Die Gabel 30 ist mit einem parallel zur Welle 2 verlaufenden Führungsloch 42 versehen, das von einer Welle 44 durchsetzt ist. Die Welle 44 ihrerseits ist relativ zur Welle 2 radial verschiebbar gelagert. Die Gabel 30 kann somit axial und radial zu dem ihr jeweils zugeordneten Stanzzylinder 4 bzw. 6 verschoben werden. Die Gabel 30 ist im Betrieb stationär und der Stanzzylinder 4 bzw. 6 läuft um. Die aus der Öffnung 34 der Gabel 30 austretende Druckluft gelangt somit nacheinander in die Eintrittsöffnungen 18 der kurzen Kanäle 14 und wird, wenn sie beim Übergang von einem Kanal 14 zu einem folgenden Kanal 14 nicht in einer der Eintrittsöffnungen 18 eingeführt werden kann, gestaut. Daraus ergeben sich sehr hohe Druckluftimpulse.On the peripheral surface of the punch cylinders 4, 6 there are circular closed punch edges 10, in each of which an outlet opening 12 of a channel 14 opens, which has an inlet opening 18 opening into a side surface 16 of the punch cylinder 4, 6. The side surface 16 faces a flange 20 on a cylindrical extension 22 of the punching cylinder 4, 6, which has a smaller outside diameter than the punching cylinder 4, 6. The resulting annular space 24 is adapted to arms 26, 28 of a fork 30 in which a Compressed air supply channel 32 is located. This compressed air supply channel 32 ends in a lateral opening 34 of the arm 28 of the fork 30 and has a connecting piece 38 at the shaft end 36 of the fork 30, to which a compressed air supply hose 40 is to be connected. The fork 30 is provided with a guide hole 42 which runs parallel to the shaft 2 and through which a shaft 44 passes. The shaft 44 is in turn mounted radially displaceable relative to the shaft 2. The fork 30 can thus axially and radially to the punch cylinder 4 or 6 respectively assigned to it be moved. The fork 30 is stationary during operation and the punch cylinder 4 or 6 rotates. The compressed air emerging from the opening 34 of the fork 30 thus passes successively into the inlet openings 18 of the short channels 14 and, if it cannot be introduced into one of the inlet openings 18 during the transition from one channel 14 to a subsequent channel 14, is stowed. This results in very high compressed air pulses.

Fig. 2 zeigt, daß die Eintrittsöffnungen 18 und die Austrittsöffnungen 12 Mündungen von sich rechtwinklig schneidenden, den Kanal bildenden Bohrungen 46 und 48 sind.2 shows that the inlet openings 18 and the outlet openings 12 are mouths of bores 46 and 48 which intersect at right angles and form the channel.

Bei der Ausführungsform nach Fig. 4 ist ein langgestreckter Trägerzylinder 60 von Stanzsegmenten 62 vorgesehen, der axiale Zapfen 64, 66 zur Lagerung aufweist. Am einen Ende des Trägerzylinders 60 befindet sich ein Antriebszahnrad 68, das in axialem Abstand von einer Stirnfläche des Trägerzylinders 60 verläuft und somit Platz für eine Gabel 70 läßt, die grundsätzlich ebenso ausgebildet ist wie die Gabel 30 nach den Fig. 1 bis 3. Für die entsprechenden Elemente sind daher die gleichen Bezugsziffern verwendet. In dem Trägerzylinder verlaufen Axialbohrungen 72, die den Bohrungen 46, und Radialbohrungen 74, die den Radialbohrungen 48 entsprechen. Diese Radialbohrungen 74 koinzidieren mit Bohrungen 76 in den Stanzsegmenten 62. In diesem Fall umschließt jede geschlossene Stanzkante 78 der Stanzsegmente 62 vier Austrittsöffnungen 79.In the embodiment according to FIG. 4, an elongated carrier cylinder 60 of punched segments 62 is provided, which has axial pins 64, 66 for storage. At one end of the support cylinder 60 there is a drive gear 68 which extends at an axial distance from an end face of the support cylinder 60 and thus leaves space for a fork 70, which is basically designed in the same way as the fork 30 according to FIGS. 1 to 3. For the corresponding elements are therefore used with the same reference numbers. Axial bores 72, which correspond to the bores 46, and radial bores 74, which correspond to the radial bores 48, run in the carrier cylinder. These radial bores 74 coincide with bores 76 in the punching segments 62. In this case, each closed punching edge 78 of the punching segments 62 encloses four outlet openings 79.

Fig. 5 zeigt einen Stanzzylinder 80, an dem nur eine von mehreren geschlossenen Stanzkanten 82 angedeutet ist. Durch den Stanzzylinder 80 erstrecken sich Axialbohrungen 84, die den Axialbohrungen 46 entsprechen, und Radialbohrungen 86, die den Radialbohrungen 48 entsprechen. In Abstand von der Stirnfläche 88 des Stanzzylinders 80 ist über einen zylindrischen Ansatz 90 verringerten Durchmessers ein Zahnrad 92 angesetzt, auf dessen Außenseite sich ein Lagerzapfen 94 befindet. An der anderen Stirnseite 96 des Stanzzylinders 80 ist ebenfalls ein Lagerzapfen 98 angesetzt. Der Raum 100 zwischen der Stirnfläche 88 und dem Zahnrad 92 dient zur Aufnahme der nicht dargestellten Gabel.FIG. 5 shows a punch cylinder 80 on which only one of a plurality of closed punch edges 82 is indicated. Axial bores 84, which correspond to the axial bores 46, and radial bores 86, which correspond to the radial bores 48, extend through the punching cylinder 80. At a distance from the end face 88 of the punching cylinder 80 is of reduced diameter via a cylindrical extension 90 a gear 92 is attached, on the outside of which there is a journal 94. A bearing journal 98 is also attached to the other end face 96 of the punching cylinder 80. The space 100 between the end face 88 and the gear 92 serves to accommodate the fork, not shown.

Fig. 6 zeigt eine kreisförmig geschlossene Stanzkante 110, in der zentrisch eine Austrittsöffnung 112 mündet.6 shows a circularly closed punching edge 110, in which an outlet opening 112 opens centrally.

Fig. 7 zeigt eine langgestreckte geschlossene Stanzkante 120, in deren Endbereichen je eine Austrittsöffnung 122, 124 für Druckluft mündet.7 shows an elongated, closed punched edge 120, in the end regions of which an outlet opening 122, 124 for compressed air opens.

Die Figuren 8 und 9 zeigen einen Stanzzylinder 130 mit vorspringenden geschlossenen Stanzkanten 132, innerhalb denen Austrittsöffnungen 134 für Druckluft münden. Die Druckluft wird den Austrittsöffnungen 134 über Kanäle 136 zugeführt, die innerhalb des Stanzzylinders 130 ausgebildet sind und Eintrittsöffnungen 138 an einer seitlichen Ringfläche 140 des Stanzzylinders 130 aufweisen. Die Ringfläche 140 umschließt einen Zylinderansatz 142 an dem Stanzzylinder 130, dessen Umfangsfläche 144 Lagerfläche für ein Ringteil 146 ist. In der der Ringfläche 140 zugewandten Seitenfläche 148 mündet eine in Umfangsrichtung des Stanzzylinders 130 langgestreckte Öffnung 150, aus der über einen im Ringteil 146 befindlichen Kanal 152 Druckluft den Eintrittsöffnungen 138 der Reihe nach zuzuführen ist. An dem Ringteil 146 ist einstückig ein der Montage dienendes Gabelteil 154 angesetzt. Der Kanal 152 endet eintrittsseitig in einem Innengewindeabschnitt 156, der einen Außengewindeansatz 158 an einem Druckluftzuführungsteil 160 aufnehmen kann. Auf dem zylindrischen Ansatz 152 befindet sich ein zweiter zylindrischer Ansatz 162 verringerten Durchmessers, auf den ein Zahnrad 164 aufgesetzt werden kann. Das Zahnrad 164 ist mittels Schrauben 166, die Löcher 168 im Zahnrad 164 durchsetzen, in Gewindelöchern 170 der Stirnseite des zylindrischen Ansatzes 142 festzuschrauben.FIGS. 8 and 9 show a punch cylinder 130 with projecting closed punch edges 132, within which outlet openings 134 for compressed air open. The compressed air is fed to the outlet openings 134 via channels 136 which are formed within the punch cylinder 130 and have inlet openings 138 on a lateral annular surface 140 of the punch cylinder 130. The annular surface 140 encloses a cylinder shoulder 142 on the punch cylinder 130, the peripheral surface 144 of which is a bearing surface for an annular part 146. In the side surface 148 facing the ring surface 140, an opening 150 opens out in the circumferential direction of the punching cylinder 130, from which compressed air is to be supplied in sequence to the inlet openings 138 via a channel 152 in the ring part 146. An assembly-serving fork part 154 is attached in one piece to the ring part 146. The channel 152 ends on the inlet side in an internally threaded section 156, which can receive an externally threaded attachment 158 on a compressed air supply part 160. On the cylindrical neck 152 there is a second cylindrical neck 162 of reduced diameter, on which a gear 164 can be placed. The gear 164 is by means of screws 166, which pass through holes 168 in the gear 164, in threaded holes 170 of the end face of the cylindrical Screw approach 142.

Fig. 10 zeigt einen Stanzzylinder 180, der mit einem unter ihm angeordneten drehbar gelagerten Widerlagerzylinder 182 zusammenwirkt. Auszustanzendes blattförmiges Material wird durch einen Spalt zwischen dem Stanzzylinder 180 und dem Widerlagerzylinder 182 geführt und anschließend schräg nach oben über eine drehbar gelagerte Stützwalze 186 abgeführt. Zur Aufnahme und Weiterführung der aus dem blattförmigen Material 184 ausgestanzten Materialbereiche ist ein Kasten 188 mit einem auf die jeweils unter Druckluft stehenden Austrittsöffnungen 190 des Stanzzylinders 180 gerichteten Eintrittsschlitz 192 vorgesehen. Der Kasten 188 ist innen als eine Art Labyrinth ausgebildet, an dessen Innenflächen die ausgestanzten Materialbereiche, wie durch ausgezogene Pfeile angedeutet, mehrfach reflektiert werden. Druckluft zieht durch den Kasten teils wirbelförmig, wie durch gestrichelte Pfeile angedeutet. Über einem Bodenbereich 194 des Kastens 188 mündet ein Abzugsstutzen 196 für die ausgestanzten Materialbereiche,der an eine nicht dargestellte Ansaugeinrichtung angeschlossen ist.10 shows a punch cylinder 180 which interacts with a rotatably mounted abutment cylinder 182 arranged below it. Sheet-shaped material to be punched out is passed through a gap between the punching cylinder 180 and the abutment cylinder 182 and is then discharged obliquely upwards via a rotatably mounted support roller 186. A box 188 with an inlet slot 192 directed towards the outlet openings 190 of the punching cylinder 180, each of which is under compressed air, is provided for receiving and continuing the material areas punched out of the sheet-like material 184. The box 188 is designed on the inside as a kind of labyrinth, on the inner surfaces of which the punched-out material areas are repeatedly reflected, as indicated by solid arrows. Compressed air partly flows through the box in a vortex shape, as indicated by dashed arrows. Above a bottom area 194 of the box 188, a discharge nozzle 196 for the punched-out material areas opens, which is connected to a suction device, not shown.

Der Eintrittsschlitz 192 ist unten durch eine etwa tangential schräg nach oben zu dem Widerlagerzylinder 182 gerichtete Wand 198 begrenzt, an der eine die Umfangsfläche 200 des Widerlagerzylinders 182 abstreifende Rakel 202 angesetzt ist. Oben ist der Eintrittsschlitz 192 des Kastens durch eine von dem Stanzzylinder 180 fort weisende Wand 204 begrenzt, die im Querschnitt mit der an sie angrenzenden Wand 206 des Kastens 188 annähernd ein L bildet.The entry slot 192 is delimited at the bottom by a wall 198, which is directed approximately tangentially obliquely upwards to the abutment cylinder 182 and on which a doctor blade 202 is attached which scrapes the circumferential surface 200 of the abutment cylinder 182. Above, the inlet slot 192 of the box is delimited by a wall 204 pointing away from the punching cylinder 180, which in cross section forms approximately an L with the wall 206 of the box 188 adjoining it.

Claims (9)

1. An apparatus for removing portions of material punched out from a sheet-like material (184) by means of compressed air through projecting closed punch rims (10; 78; 82; 110; 120; 132) on the circumferential surface of at least one rotating punching cylinder (4; 6; 60, 62; 80; 130; 180), wherein the compressed air is directed into the punching cylinder (4; 6; 60, 62; 80; 130; 180) and out of the punching cylinder (4; 6; 60, 62; 80; 130; 180) through at least one outlet opening (12; 79; 86; 112; 122, 124; 134; 190) disposed inside the closed punch rims (10; 78; 82; 110; 120; 132), characterised in that the compressed air is fed from an opening (34; 150) in a radially extending lateral surface (of 28; 148) of a non-rotating annular member (146) or fork (30; 70), which is guided on the punching cylinder (4; 6; 60, 62; 80; 130; 180) and embraces it at least partly, to inlet openings (18; 138) which are associated with the outlet opening (12; 79; 86; 112; 122, 124; 134; 190) and which are disposed in a radially extending lateral surface (16; 88; 140) of the punching cylinder (4; 6; 60, 62; 80; 130; 180), said lateral surface abutting tightly against the lateral surface (of 28; 148) of the annular member (146) or the fork (30; 70).
2. An apparatus according to Claim 1, characterised in that the outlet openings (12; 79; 86; 112; 122; 124; 134; 190) and the inlet openings (18; 138) are orifices of bores (46, 48; 84, to 86; 72, 74; 136) which intersect at right angles.
3. An apparatus according to either of the preceding Claims, characterised in that the the punching cylinder (4; 6) is mounted so that it can be axially displaced and located on a drive shaft (2).
4. An apparatus according to any one of the preceding Claims, characterised in that the fork (30; 70) is arranged so that it can be axially and radially displaced and located relative to the punching cylinder (4; 6; 60, 62; 80).
5. An apparatus according to any one of the preceding Claims, characterised in that the punching cylinder (4; 6; 60, 62; 80; 130; 180) consists of steel and the annular member (146) or the fork (30; 70) consists of a wear-resistant, self-lubricating, temperature-resistant plastics material, in particular a thermoplastic, a fluorine plastic or a polyamide.
6. An apparatus according to any one of the preceding Claims, characterised in that the opening (150) in the lateral surface (148) of the annular member (146) or the fork (30; 70) is elongated in the circumferential direction of the punching cylinder (130).
7. An apparatus according to any one of the preceding Claims, characterised in that a casing (188) is provided to receive and convey the punched-out portions of material, said casing having an inlet slot (192) directed towards the outlet openings (190) of the punching cylinder (180) through which compressed air flows, the punched-out portions of material being reflected a number of times on the inner surface of said inlet slot, and in that a discharge connector (196) for the punched-out portions of material is open above a bottom zone (194) of the casing (188).
8. An apparatus according to Claim 7, characterised in that the sheet-like material (184) is guided through a gap between the punching cylinder (180) and an abutment cylinder (182) which is rotatably mounted below the punching cylinder (180), and in that the inlet slot (192) of the casing (188) is delimited downwardly by a wall (198) of the casing (188), which wall is directed approximately tangentially and obliquely upwards towards the abutment cylinder (182) and on which is mounted a blade (202) wiping the circumferential surface (200) of the abutment cylinder (182).
9. An apparatus according to Claim 7 or 8, characterised in that the inlet slot (192) of the casing (188) is delimited upwardly by a wall (204) of the casing (188) extending away from the punching cylinder (180).
EP90110648A 1989-06-06 1990-06-05 Device for carrying away punched out regions of material from a sheet-like material Expired - Lifetime EP0401769B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3918470 1989-06-06
DE3918470A DE3918470A1 (en) 1989-06-06 1989-06-06 DEVICE FOR DRAINING MATERIAL AREAS PUNCHED FROM A SHEET-SHAPED MATERIAL

Publications (2)

Publication Number Publication Date
EP0401769A1 EP0401769A1 (en) 1990-12-12
EP0401769B1 true EP0401769B1 (en) 1992-05-13

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Application Number Title Priority Date Filing Date
EP90110648A Expired - Lifetime EP0401769B1 (en) 1989-06-06 1990-06-05 Device for carrying away punched out regions of material from a sheet-like material

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US (1) US4993293A (en)
EP (1) EP0401769B1 (en)
AT (1) ATE75991T1 (en)
CA (1) CA2014829C (en)
DE (2) DE3918470A1 (en)
DK (1) DK0401769T3 (en)
ES (1) ES2032690T3 (en)

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NL9401561A (en) * 1994-09-26 1996-05-01 Terpo Holding Bv Elastic chain, method and device for manufacturing an elastic chain, and method and device for supplying elastics originating from the elastic chain to a treatment device.
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JP2003104620A (en) * 2001-09-28 2003-04-09 Johnson & Johnson Kk Device to cut off pieces from long stretching tape and affix to sticky tape
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EP2186612A1 (en) 2008-11-12 2010-05-19 Gerhardt Ltd. A thin plate cutting die and a cylinder for magnetically holding the cutting die
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Also Published As

Publication number Publication date
CA2014829A1 (en) 1990-12-06
DE3918470C2 (en) 1993-04-15
DE3918470A1 (en) 1990-12-13
CA2014829C (en) 1996-04-30
US4993293A (en) 1991-02-19
DE59000122D1 (en) 1992-06-17
ATE75991T1 (en) 1992-05-15
DK0401769T3 (en) 1992-07-06
EP0401769A1 (en) 1990-12-12
ES2032690T3 (en) 1993-02-16

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