EP1591231B1 - Folding hook - Google Patents

Folding hook Download PDF

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Publication number
EP1591231B1
EP1591231B1 EP05102657A EP05102657A EP1591231B1 EP 1591231 B1 EP1591231 B1 EP 1591231B1 EP 05102657 A EP05102657 A EP 05102657A EP 05102657 A EP05102657 A EP 05102657A EP 1591231 B1 EP1591231 B1 EP 1591231B1
Authority
EP
European Patent Office
Prior art keywords
catch hook
hook
axis
elastic element
restoring
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.)
Not-in-force
Application number
EP05102657A
Other languages
German (de)
French (fr)
Other versions
EP1591231A1 (en
Inventor
Hartmut Klapp
Wolfgang Diehr
Klaus Naber
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Publication date
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Publication of EP1591231A1 publication Critical patent/EP1591231A1/en
Application granted granted Critical
Publication of EP1591231B1 publication Critical patent/EP1591231B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/262—Folding sheets, blanks or webs involving folding, leading, or trailing flaps of blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
    • B31B50/54—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers operating on moving material

Definitions

  • the invention relates to a device in a folding box gluing machine with a pull hook rotatably mounted about an axis for introducing a feed gap of a product, according to the preamble of claim 1.
  • devices of the type mentioned are used to raise the passage of a blank through the machine leading sections of the blank by a crease line transverse to the conveying direction of the machine and hereby initiate a convolution.
  • Such devices are known for example from DE 80 19 092 U1 or US-A-3388641.
  • the tear-off hook respectively shown there has a pivotally mounted support lever, at the end of a hook-shaped element is fixed, with which a leading blank section can be deflected out of the conveying plane and folded back.
  • tear hooks are deflected by the product itself and take along the leading blank.
  • the feed of the product then creates the necessary forces to initiate the folding.
  • the hook then snaps back to its original position, driven by a suitable return force, which is typically applied by a spring which engages the tear-open hook.
  • torsion springs or coil springs are known from the prior art.
  • the blanks in the direction of running speeds up to 660m / min can have and the Aufraißhaken be deflected at correspondingly high speeds and reset.
  • the high speed can also cause damage or marks through the tear hook on the blanks.
  • the axis of the Aufr concernedhakens is connected by means of a rolling belt with the elastic element which causes the restoring force of the Aufr constitutionhakens.
  • the elastic element may also be a separate spring, e.g. a coil spring.
  • the belt could also be a rubber-like material adjoining the belt.
  • the belt is also advantageously wear resistant in the area that rolls on the axle.
  • the masses are advantageously reduced in comparison with the prior art, which bring about the restoring force, so that the inertia of the system is reduced.
  • a linear movement of the elastic element by its arrangement about the axis in a rotary motion converts, occurs only minor wear on the cooperating parts.
  • the service life of the tear-open hook is advantageously improved.
  • the return means on adjusting means for the restoring force of the Aufr serves as a means for the restoring force of the Aufr furnishhakens.
  • This allows the Aufr imparthaken be acted upon with different restoring forces, which corresponds to the requirement to be suitable for different products.
  • the required restoring force can be set to parameters that are generally different from product to product as they depend on the length of the leading blank, the material thickness, etc.
  • a tool change is not required in many cases, so that on the one hand the time for the tool change is not incurred and on the other hand, the cost of a plurality of Aufr fabricathaken is reduced.
  • the adjusting means for the restoring force of the Aufr predominantlyhakens comprise biasing means with which a certain bias in the elastic element is adjustable.
  • the elastic element is a spring, the attachment point of which is adjustable on the device for producing the desired preload.
  • the spring could advantageously be a tension spring whose one end, which is not connected to the belt but to the device, can be adjusted.
  • the device comprises a damping means, by means of which the return movement of the tear-open is dämptbar.
  • the restoring force causes the pull-tab to snap back to its original position to be ready for the next product.
  • the tear hook can only process the next product when it is actually in the starting position. Due to the restoring force of the Aufr disclosehaken but is promoted in the prior art to its original position, that it rebounds first or several times due to its momentum. This adversely delays the time until the pull-tab is ready for the next product.
  • the damping means is a technical impact rubber.
  • the position of the damping means is variable relative to the Aufr imparthaken.
  • the mounting of the tear-open hook is such that a rotation of the Aufr fabricathakens about its axis by about 60 ° to 120 °, in particular about 90 ° is possible.
  • This allows the tear hook to handle a large number of leading blanks of different lengths.
  • the tear-off hook is detachably fastened to the shaft so as to be rotatable about its own longitudinal axis, so that the angle between the tear-off hook angle and the cut-out direction can be changed, in particular in a range from -70 ° to + 70 °.
  • This is advantageous in the folding of obliquely arranged leading edges, as previously special hooks, so-called window hooks in left and right version were used. This is no longer necessary with the new form, which increases the flexibility, and reduces the changeover times and the number of hook types required.
  • the device comprises a locking clip, by means of which the tear-off hook is permanently removable from the working plane.
  • the Aufr ultimatelyhakenvoroplasty invention as shown in Fig. 1 to 3, a pivotable about an axis 17 Aufr complicathaken 15 with a Aufr practicalhakenwinkel 16 on.
  • a bolt 30 is mounted, which interacts with a stop 29 which is fixed to the plate 4, to determine the starting position of the Aufr ultimatelyhakens 15.
  • a pipe 3 is also attached, which ends just above the housing 2 of the shaft 18.
  • an elastic element 14, in particular a tension spring 14 is arranged within the tube 3.
  • the elastic element 14 is attached on the one hand to a clamping pin 34 which is mounted in a clamping nut 9.
  • the clamping nut 9 star-shaped recesses arranged to prevent an automatic adjustment due to the opposing force.
  • the clamping nut 9 has a quarter notch.
  • Tube 3 and elastic element 14 are arranged substantially tangentially to the shaft 18.
  • the other end of the belt 13 is fixed to the periphery of the shaft 18. If the pull-tab is deflected by a product 50a, this arrangement causes the belt 13 to be wrapped around the shaft 18 and the elastic element 14 to be stretched.
  • the Aufr concernedhaken 15 has on the shaft 18 a semi-circular cross section and is releasably secured thereto with a threaded pin.
  • the height of the Aufr concernedhakens 15 are adjusted to the working plane, ie its active length, as well as by turning the Aufr constitutionhakens 15 the angle that forms the Aufr possesshakenwinkel 16 to the leading blank.
  • the Aufraißhakenwinkel 16 can be adjusted up to 140 °, or rotated from + 70 ° to -70 ° in both directions relative to the blanking direction. This is advantageous in the folding of obliquely arranged leading edges, as previously special hooks, so-called window hooks in left and right version, were used. This is no longer necessary with the new form, which increases the flexibility, and reduces the changeover times and the number of hook types required.
  • a damper 12 is attached by means of a fastening element 23, in particular a screw 23.
  • This damper 12 is preferably an elastomer, in particular a technical impact rubber. This damper 12 intercepts the return movement of the Aufr GmbHhakens 15 when it is fast by the restoring force generated by the elastic member 14 back to the starting position.
  • a mounting block 6 by means of which the tear hook device 1 can be longitudinally slidably fixed to the transport direction of a product by means of a screw 20 on a crosshead 90 (see FIG. 4) to position the tear hook 15 of the corresponding geometry of a product Adjust 50a.
  • the plate 4 has two elongated holes 25, by means of which a first rod 41 (see FIG. 3) can be fastened to the tear hook device 1 by means of screws 45.
  • a first rod 41 see FIG. 3
  • the holding block 6 is the same as the support block 6 of the embodiment of Figures 1 to 3 and additionally a clamping element 7 is provided for fixing the rod 41 to the plate 4.
  • the holding block 6 is made in one piece and thus includes the clamping element 7 for fixing the rod 41 to the plate 4 already.
  • a pin 8 which is flattened on one side, fastened with the screw 46.
  • the pin 8 is passed through the plate 4 and on the other side with the mounting block 47 connectable.
  • the mounting pad 47 By means of the mounting pad 47, the position of Rod 41 and thus the guide surface 44 and the impeller 70 with respect to the Aufr predominantlyhakens 15 adjustable.
  • the rod 41 is fixed in the mounting block 47 by the screw 48.
  • the distance between the plate 4 and the rod 41 can be changed by displacement along the pin 8. This results in additional adjustment options in order to be able to optimally tune the device to different products.
  • the first rod 41 is connected to a further second rod 42 which carries at its end a guide surface 44, by means of which the products 50a are fed to the tear hook 15.
  • the guide surface 44 is provided in the inlet region with an inlet slope 43.
  • All of the embodiments of the device shown in FIGS. 1 to 5 have fastening blocks 61 as connecting members of the rods 41, 42, 71.
  • the mounting block 61 has a bore and a circular cross section in cross-section-shaped recess. By the cross-sectionally circular portion-shaped recess, the rod 41 is guided and fixed by the mounting plate 62.
  • the rod 41 has a flattening by which an adjustment of the position of the vertical rods 42, 71 is possible, so that the vertical rods 42, 71 lie in the working plane of the Aufr GmbHhakens 15.
  • the mounting pin 63 is freely rotatable in the unfixed state about its axis, so that the possible in Fig. 4 settings of the rod 42, 42 'are possible, ie about a variation of the length of the bottom of the mounting pin 63 protruding part of the rod 42, 42 'and its angular position with respect to the vertical. This variation is indicated by the direction of rotation with the arrow with the reference numeral 82 in Fig. 4. Of course, the same adjustment options also result for the rear vertical bar 71. This makes a quick and easy adaptation of the Aufr GmbHhakenvortechnik 1 to different products 50a possible.
  • the tear-open hook 15 is deflected by a leading blank 52 of a product 50a and thereby displaced in a pendulum motion about the axis 17.
  • the leading blank 52 which is delimited by a crease line 51 of the product 50a, is carried along by the Aufraißhakenwinkel 16 and thereby kinks at the designated crease line 51 a.
  • This is shown in Fig. 3 for the Aufhißhakenposition 15a.
  • ⁇ about the axis 17
  • the swept in the process angle between 30 ° and 120 ° advantageously, the maximum possible deflection is about 90 °.
  • the Aufraißhakenposition 15c of Aufr employhaken 15 can be fixed with a detent clip 19 outside the working plane.

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  • Liquid Developers In Electrophotography (AREA)

Abstract

A rotatable catch hook (15) is mounted about an axis to initiate the leading fold in a product. A restoring device has an elastic element (14) which is connected to the catch hook via a rolling belt (13). An independent claim is also included for a folding box gluing machine.

Description

Die Erfindung betrifft eine Vorrichtung in einer Faltschachtelklebemaschine mit einem um eine Achse drehbar gelagerten Aufreißhaken zum Einleiten eines Vorlauffalzes eines Produkts, gemäß des Oberbegriffs des Anspruchs 1.The invention relates to a device in a folding box gluing machine with a pull hook rotatably mounted about an axis for introducing a feed gap of a product, according to the preamble of claim 1.

Typischerweise werden Vorrichtungen der genannten Art eingesetzt, um beim Durchlauf eines Zuschnittes durch die Maschine vorlaufende Abschnitte des Zuschnitts um eine Rilllinie quer zur Förderrichtung der Maschine anzuheben und hiermit eine Faltung einzuleiten.Typically, devices of the type mentioned are used to raise the passage of a blank through the machine leading sections of the blank by a crease line transverse to the conveying direction of the machine and hereby initiate a convolution.

Derartige Vorrichtungen sind beispielsweise aus der DE 80 19 092 U1 oder der US-A-3388641 bekannt. Der jeweils dort gezeigte Aufreißhaken weist einen schwenkbar befestigten Traghebel auf, an dessen Ende ein hakenförmiges Element befestigt ist, mit dem ein vorlaufender Zuschnittsabschnitt aus der Förderebene hochgelenkt und nach hinten umgelegt werden kann.Such devices are known for example from DE 80 19 092 U1 or US-A-3388641. The tear-off hook respectively shown there has a pivotally mounted support lever, at the end of a hook-shaped element is fixed, with which a leading blank section can be deflected out of the conveying plane and folded back.

Diese Aufreißhaken werden von dem Produkt selbst ausgelenkt und nehmen dabei den vorlaufenden Zuschnitt mit. Durch den Vorschub des Produktes entstehen dann die erforderlichen Kräfte, um die Faltung einzuleiten. Dann schnellt der Haken in seine ursprüngliche Lage zurück, getrieben von einer geeigneten Rückstellkraft, die typischerweise von einer Feder aufgebracht wird, die an dem Aufreißhaken angreift. Dabei sind aus dem Stand der Technik Drehfedern oder Spiralfedern bekannt.These tear hooks are deflected by the product itself and take along the leading blank. The feed of the product then creates the necessary forces to initiate the folding. The hook then snaps back to its original position, driven by a suitable return force, which is typically applied by a spring which engages the tear-open hook. In this case, torsion springs or coil springs are known from the prior art.

Dabei ist zu beachten, dass die Zuschnitte in Laufrichtung Geschwindigkeiten bis zu 660m/min aufweisen können und die Aufreißhaken mit entsprechend hohen Geschwindigkeiten ausgelenkt und rückgestellt werden. Außerdem kommt es bei diesen hohen Geschwindigkeiten entsprechend auch zu einer hohen Anzahl von Lastwechseln, die sich in einem raschen Verschleiß der Rückstellelemente niederschlägt. Durch die hohe Geschwindigkeit kann es zudem zu Beschädigungen oder Markierungen durch den Aufreißhaken auf den Zuschnitten kommen.It should be noted that the blanks in the direction of running speeds up to 660m / min can have and the Aufraißhaken be deflected at correspondingly high speeds and reset. In addition, it comes at these high speeds accordingly also a high number of load changes, which is reflected in a rapid wear of the return elements. The high speed can also cause damage or marks through the tear hook on the blanks.

Dazu kommt, dass aufgrund der in diesen Lösungen herrschenden hohen Massenträgheiten die Geschwindigkeit beschränkt. Ist die Rückstellkraft zu gering, wird der Aufreißhaken zu leicht ausgelenkt, ist die Rückstellkraft zu hoch, wird er nicht leicht genug ausgelenkt. Dies führt ebenfalls zu Problemen hinsichtlich der möglichen Geschwindigkeit, mit der die Faltschachtelklebemaschine betrieben werden kann. Die erforderliche Rückstellkraft ist aber in der Regel von Produkt zu Produkt verschieden, da sie von der Länge des vorlaufenden Zuschnitts, der Materialdicke und anderen Parametern abhängt. Dadurch ist die Einstellung der Rückstellkraft entsprechend problematisch und häufig müssen für unterschiedliche Produkte unterschiedliche Aufreißhaken verwendet werden, was zu hohen Kosten und zeitraubendem Werkzeugwechsel führt.In addition, speed limits due to the high mass inertias prevailing in these solutions. If the restoring force is too low, the pull-tab is deflected too easily, if the restoring force is too high, it will not deflect easily enough. This also causes problems regarding the possible speed with which the folder gluer can be operated. The required restoring force is usually different from product to product as it depends on the length of the leading blank, the material thickness and other parameters. As a result, the adjustment of the restoring force is correspondingly problematic and frequently different tear-open hooks have to be used for different products, which leads to high costs and time-consuming tool changes.

Entsprechend ist es wünschenswert, einen Vorrichtung zu schaffen, die diese Nachteile nicht aufweist.Accordingly, it is desirable to provide a device which does not have these disadvantages.

Es ist daher die Aufgabe der Erfindung, ein Vorrichtung in einer Faltschachtelklebemaschine mit einem um eine Achse drehbar gelagerten Aufreißhaken zum Einleiten eines Vorlauffalzes eines Produkts zu schaffen, die einfach gehandhabt werden kann, verbesserte Einstellmöglichkeiten und eine größere Standzeit aufweist.It is therefore the object of the invention to provide a device in a folding box gluer with a rotatably mounted about an axis Aufreißhaken for introducing a Vorlauffalzes a product that can be handled easily, has improved adjustment options and a longer service life.

Diese Aufgabe wird mit Hilfe der erfindungsgemäßen Vorrichtung mit den im Anspruch 1 genannten Merkmalen gelöst.This object is achieved by means of the device according to the invention with the features mentioned in claim 1.

Entsprechend ist bei der erfindungsgemäße Vorrichtung die Achse des Aufreißhakens mittels eines abrollenden Riemens mit dem elastischen Element verbunden, das die Rückstellkraft des Aufreißhakens bewirkt. Unter Riemen ist dabei ein flexibles Element zu verstehen, bei dem die Kräfte in Zugrichtung wirken. Es ist auch denkbar, dass der Riemen selbst elastisch ist und somit gleichzeitig das elastische Element darstellt. Bei dem elastischen Element kann es sich aber auch um eine separate Feder handeln, z.B. eine Spiralfeder. Andererseits könnte es sich dabei auch um ein sich an den Riemen anschließendes gummiartiges Material handeln. Der Riemen ist darüber hinaus vorteilhafterweise in dem Bereich, der auf der Achse abrollt verschleißfest.Accordingly, in the device according to the invention the axis of the Aufreißhakens is connected by means of a rolling belt with the elastic element which causes the restoring force of the Aufreißhakens. Under belt is to understand a flexible element in which the forces act in the pulling direction. It is also conceivable that the belt itself is elastic and thus at the same time represents the elastic element. However, the elastic element may also be a separate spring, e.g. a coil spring. On the other hand, it could also be a rubber-like material adjoining the belt. The belt is also advantageously wear resistant in the area that rolls on the axle.

Durch erfindungsgemäße Anordnung werden vorteilhafterweise die Massen im Vergleich zum Stand der Technik reduziert, die die Rückstellkraft bewirken, so dass die Trägheit des Systems verringert wird. Durch die Verwendung eines Riemens, der eine lineare Bewegung des elastischen Elements durch seine Anordnung um die Achse in eine Drehbewegung umsetzt, tritt nur geringer Verschleiß an den zusammenwirkenden Teilen auf. Dadurch wird vorteilhafterweise die Standzeit des Aufreißhakens verbessert.By means of the arrangement according to the invention, the masses are advantageously reduced in comparison with the prior art, which bring about the restoring force, so that the inertia of the system is reduced. By the use of a belt, a linear movement of the elastic element by its arrangement about the axis in a rotary motion converts, occurs only minor wear on the cooperating parts. As a result, the service life of the tear-open hook is advantageously improved.

In einer vorteilhaften Ausgestaltung der erfinderischen Vorrichtung weisen die Rückstellmittel Einstellmittel für die Rückstellkraft des Aufreißhakens auf. Dadurch kann der Aufreißhaken mit unterschiedlichen Rückstellkräften beaufschlagt werden, was der Anforderung, für unterschiedliche Produkte geeignet zu sein, entspricht. So kann die erforderliche Rückstellkraft auf Parameter, die in der Regel von Produkt zu Produkt verschieden sind, da sie von der Länge des vorlaufenden Zuschnitts, der Materialdicke usw. abhängig sind, eingestellt werden. Dadurch ist in vielen Fällen ein Werkzeugwechsel nicht erforderlich, so dass einerseits die Zeit für den Werkzeugwechsel nicht anfällt und andererseits die Kosten für eine Mehrzahl von Aufreißhaken reduziert wird.In an advantageous embodiment of the inventive device, the return means on adjusting means for the restoring force of the Aufreißhakens. This allows the Aufreißhaken be acted upon with different restoring forces, which corresponds to the requirement to be suitable for different products. Thus, the required restoring force can be set to parameters that are generally different from product to product as they depend on the length of the leading blank, the material thickness, etc. As a result, a tool change is not required in many cases, so that on the one hand the time for the tool change is not incurred and on the other hand, the cost of a plurality of Aufreißhaken is reduced.

In einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung umfassen die Einstellmittel für die Rückstellkraft des Aufreißhakens Vorspannungsmittel, mit der eine bestimmte Vorspannung im elastischen Element einstellbar ist. Insbesondere handelt es sich bei dem elastischen Element um eine Feder, deren Befestigungspunkt an der Vorrichtung zur Erzeugung der erwünschten Vorspannung verstellbar ist. Bei der Feder könnte es sich dabei vorteilhafterweise um eine Zugfeder handeln, deren eines Ende, das nicht mit dem Riemen, sondern mit der Vorrichtung verbunden ist, verstellt werden kann.In an advantageous development of the device according to the invention, the adjusting means for the restoring force of the Aufreißhakens comprise biasing means with which a certain bias in the elastic element is adjustable. In particular, the elastic element is a spring, the attachment point of which is adjustable on the device for producing the desired preload. The spring could advantageously be a tension spring whose one end, which is not connected to the belt but to the device, can be adjusted.

In einer weiteren vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung umfasst die Vorrichtung ein Dämpfungsmittel, vermittels dessen die Rückstellbewegung des Aufreißhakens dämptbar ist. Durch die Rückstellkraft schnellt der Aufreißhaken in seine Ausgangsposition zurück, um bereit für das nächste Produkt zu sein. Allerdings kann der Aufreißhaken das nächste Produkt nur bearbeiten, wenn er sich tatsächlich auch in der Ausgangsposition befindet. Durch die Rückstellkraft wird der Aufreißhaken aber im Stand der Technik so in seine Ausgangsposition befördert, dass er aufgrund seines Impulses zunächst ein oder mehrmals abprallt. Dadurch verzögert sich nachteilig die Zeit, bis der Aufreißhaken für das nächste Produkt bereit ist. Wird nun ein Dämpfungsmittel im Bereich der Ausgangsposition des Aufreißhakens angebracht, kommt der Aufreißhaken schneller in seine Ausgangsposition zurück und entsprechend kann eine Leistungssteigerung der Faltschachtelklebemaschine erzielt werden, da der Abstand zwischen den aufeinander folgenden Produkten verringert und / oder deren Transportgeschwindigkeit erhöht werden kann. Vorteilhafterweise handelt es sich bei dem Dämpfungsmittel um einen technischen Prallgummi. Vorteilhafterweise ist die Position des Dämpfungsmittels relativ zum Aufreißhaken veränderbar.In a further advantageous embodiment of the device according to the invention, the device comprises a damping means, by means of which the return movement of the tear-open is dämptbar. The restoring force causes the pull-tab to snap back to its original position to be ready for the next product. However, the tear hook can only process the next product when it is actually in the starting position. Due to the restoring force of the Aufreißhaken but is promoted in the prior art to its original position, that it rebounds first or several times due to its momentum. This adversely delays the time until the pull-tab is ready for the next product. Now, if a damping means is mounted in the region of the starting position of the Aufreißhakens, the Aufreißhaken comes back faster to its original position and, accordingly, an increase in performance of Faltschachtelklebemaschine be achieved because the distance between the successive products reduced and / or their transport speed can be increased can. Advantageously, the damping means is a technical impact rubber. Advantageously, the position of the damping means is variable relative to the Aufreißhaken.

In einer weiteren vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung ist die Lagerung des Aufreißhakens derart, dass eine Verdrehung des Aufreißhakens um seine Achse um etwa 60° bis 120°, insbesondere ca. 90° möglich ist. Dadurch kann der Aufreißhaken eine große Anzahl von vorlaufenden Zuschnitten unterschiedlicher Länge bearbeiten. Vorteilhafterweise lässt sich zudem auch die Position des Hakens in Längsrichtung und Transportrichtung verändern, so dass die Position des Aufreißhakens frei wählbar ist.In a further advantageous embodiment of the device according to the invention, the mounting of the tear-open hook is such that a rotation of the Aufreißhakens about its axis by about 60 ° to 120 °, in particular about 90 ° is possible. This allows the tear hook to handle a large number of leading blanks of different lengths. Advantageously, can also change the position of the hook in the longitudinal direction and transport direction, so that the position of the tear-open hook is arbitrary.

In einer weiteren vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung ist der Aufreißhaken um seine eigene Längsachse drehbar an der Welle lösbar befestigt, so dass der Winkels zwischen Aufreißhakenwinkel und Zuschnittslaufrichtung veränderbar ist, insbesondere in einem Bereich von -70° bis +70°. Dies ist Vorteilhaft bei der Faltung von schräg angeordneten Vorderkanten, da hierfür bisher spezielle Haken, sogenannte Fensterhaken in Links- und Rechtsausführung zum Einsatz kamen. Dies ist mit der neuen Form nicht mehr notwendig, was die Flexibilität erhöht, und die Umstellzeiten sowie die Anzahl der benötigten Hakentypen reduziert.In a further advantageous development of the device according to the invention, the tear-off hook is detachably fastened to the shaft so as to be rotatable about its own longitudinal axis, so that the angle between the tear-off hook angle and the cut-out direction can be changed, in particular in a range from -70 ° to + 70 °. This is advantageous in the folding of obliquely arranged leading edges, as previously special hooks, so-called window hooks in left and right version were used. This is no longer necessary with the new form, which increases the flexibility, and reduces the changeover times and the number of hook types required.

In einer weiteren vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung umfasst die Vorrichtung eine Rastklammer, vermittels der der Aufreißhaken dauerhaft aus der Arbeitsebene entfernbar ist.In a further advantageous embodiment of the device according to the invention, the device comprises a locking clip, by means of which the tear-off hook is permanently removable from the working plane.

Bevorzugte Ausführungsformen der erfindungsgemäßen Vorrichtung werden im folgenden unter Bezugnahme auf die Zeichnung im einzelnen näher beschrieben. Es zeigen in schematischer Darstellung:

Fig. 1
eine perspektivische Ansicht einer Aufreißhakenvorrichtung,
Fig. 2
eine Schnittansicht des Aufreißhakens
Fig. 3
eine Schnittansicht des Aufreißhakens in unterschiedlichen Arbeitspositionen
Fig. 4
eine weitere Schnittansicht einer alternativen Ausführungsform der erfindungsgemäßen Vorrichtung
Fig. 5
eine perspektivische Ansicht einer weiteren alternativen Ausführungsform der erfindungsgemäßen Vorrichtung
Preferred embodiments of the device according to the invention are described in detail below with reference to the drawing. In a schematic representation:
Fig. 1
a perspective view of a Aufreißhakenvorrichtung,
Fig. 2
a sectional view of the tear-open hook
Fig. 3
a sectional view of the Aufreißhakens in different working positions
Fig. 4
a further sectional view of an alternative embodiment of the device according to the invention
Fig. 5
a perspective view of another alternative embodiment of the device according to the invention

Die erfindungsgemäße Aufreißhakenvorrichtung 1 weist wie in Fig. 1 bis 3 dargestellt, einen um eine Achse 17 verschwenkbar gelagerten Aufreißhaken 15 mit einem Aufreißhakenwinkel 16 auf. An der Welle 18, die um die Achse 17 angeordnet ist, ist ein Bolzen 30 angebracht, der mit einem Anschlag 29, der an der Platte 4 befestigt ist wechselwirkt, um die Ausgangsposition des Aufreißhakens 15, zu bestimmen.The Aufreißhakenvorrichtung invention 1, as shown in Fig. 1 to 3, a pivotable about an axis 17 Aufreißhaken 15 with a Aufreißhakenwinkel 16 on. On the shaft 18, which is arranged about the axis 17, a bolt 30 is mounted, which interacts with a stop 29 which is fixed to the plate 4, to determine the starting position of the Aufreißhakens 15.

An der Platte 4 ist zudem ein Rohr 3 befestigt, das knapp oberhalb des Gehäuses 2 der Welle 18 endet. Innerhalb des Rohres 3 ist ein elastisches Element 14, insbesondere eine Zugfeder 14 angeordnet. Das elastische Element 14 ist einerseits an einem Spannstift 34 befestigt, der in einer Spannmutter 9 gelagert ist. Vermittels der Spannmutter 9 kann die Position des Spannstiftes 34 entlang des Rohres 3 verändert werden. Dazu weist die Spannmutter 9 sternförmige angeordnete Vertiefungen auf, die ein selbsttätiges Verstellen auf Grund der Gegenkraft verhindern. In einer bevorzugten Ausführungsform weist die Spannmutter 9 eine Viertelrastung auf. Durch eine Verstellung der Spannmutter 9 kann daher die Vorspannung des elastischen Elements 14 verändert werden, so dass Einfluss auf die Rückstellkraft des Aufreißhakens 15 genommen werden kann. Dadurch kann auf einfache und bequeme Art die Rückstellkraft des Aufreißhakens 15 den unterschiedlichen Parametern angepasst werden, die für die erforderliche Größe der Rückstellkraft verantwortlich sind.On the plate 4, a pipe 3 is also attached, which ends just above the housing 2 of the shaft 18. Within the tube 3, an elastic element 14, in particular a tension spring 14 is arranged. The elastic element 14 is attached on the one hand to a clamping pin 34 which is mounted in a clamping nut 9. By means of the clamping nut 9, the position of the clamping pin 34 along the tube 3 can be changed. For this purpose, the clamping nut 9 star-shaped recesses arranged to prevent an automatic adjustment due to the opposing force. In a preferred embodiment, the clamping nut 9 has a quarter notch. By adjusting the clamping nut 9, therefore, the bias of the elastic member 14 can be changed so that influence on the restoring force of the Aufreißhakens 15 can be taken. Thereby, the restoring force of the Aufreißhakens 15 can be adapted to the different parameters, which are responsible for the required size of the restoring force in a simple and convenient way.

Das andere Ende des elastischen Elements ist mit einem Riemen 13 verbunden. Rohr 3 und elastisches Element 14 sind im Wesentlichen tangential zu der Welle 18 angeordnet. Das andere Ende des Riemens 13 ist am Umfang der Welle 18 befestigt. Wird der Aufreißhaken durch ein Produkt 50a ausgelenkt wird durch diese Anordnung der Riemen 13 um die Welle 18 geschlungen und das elastische Element 14 gedehnt.The other end of the elastic member is connected to a belt 13. Tube 3 and elastic element 14 are arranged substantially tangentially to the shaft 18. The other end of the belt 13 is fixed to the periphery of the shaft 18. If the pull-tab is deflected by a product 50a, this arrangement causes the belt 13 to be wrapped around the shaft 18 and the elastic element 14 to be stretched.

Der Aufreißhaken 15 weist an der Welle 18 einen halbrunden Querschnitt auf und ist an dieser mit einem Gewindestift lösbar befestigt. Dadurch kann einerseits die Höhe des Aufreißhakens 15 zur Arbeitsebene verstellt werden, also seine aktive Länge, als auch durch Verdrehen des Aufreißhakens 15 den Winkel, den der Aufreißhakenwinkel 16 zu dem vorlaufenden Zuschnitt bildet. Dadurch kann der Aufreißhakenwinkel 16 bis zu 140°, oder von +70° bis -70° in beide Richtungen relativ zu der Zuschnittlaufrichtung verdreht eingestellt werden. Dies ist vorteilhaft bei der Faltung von schräg angeordneten Vorderkanten, da hierfür bisher spezielle Haken, sogenannte Fensterhaken in Links- und Rechtsausführung, zum Einsatz kamen. Dies ist mit der neuen Form nicht mehr notwendig, was die Flexibilität erhöht, und die Umstellzeiten sowie die Anzahl der benötigten Hakentypen reduziert.The Aufreißhaken 15 has on the shaft 18 a semi-circular cross section and is releasably secured thereto with a threaded pin. On the one hand the height of the Aufreißhakens 15 are adjusted to the working plane, ie its active length, as well as by turning the Aufreißhakens 15 the angle that forms the Aufreißhakenwinkel 16 to the leading blank. Thereby, the Aufraißhakenwinkel 16 can be adjusted up to 140 °, or rotated from + 70 ° to -70 ° in both directions relative to the blanking direction. This is advantageous in the folding of obliquely arranged leading edges, as previously special hooks, so-called window hooks in left and right version, were used. This is no longer necessary with the new form, which increases the flexibility, and reduces the changeover times and the number of hook types required.

In einem Langloch 26 der Platte 4 ist mittels eines Befestigungselements 23, insbesondere einer Schraube 23 ein Dämpfer 12 angebracht. Bei diesem Dämpfer 12 handelt es sich vorzugsweise um einen Elastomer, insbesondere ein technischen Prallgummi. Dieser Dämpfer 12 fängt die Rückstellbewegung des Aufreißhakens 15 ab, wenn dieser durch die Rückstellkraft, die von dem elastischen Element 14 erzeugt wird, zurück in die Ausgangsposition schnellt.In a slot 26 of the plate 4, a damper 12 is attached by means of a fastening element 23, in particular a screw 23. This damper 12 is preferably an elastomer, in particular a technical impact rubber. This damper 12 intercepts the return movement of the Aufreißhakens 15 when it is fast by the restoring force generated by the elastic member 14 back to the starting position.

An der Platte 4 ist außerdem ein Befestigungsblock 6 angebracht, vermittels dessen die Aufreißhakenvorrichtung 1 längs verschiebbar zur Transportrichtung eines Produkts mittels einer Schraube 20 an einer Traverse 90 (vergleiche Fig. 4) befestigt werden kann, um Position des Aufreißhakens 15 der entsprechenden Geometrie eines Produkts 50a anzupassen. Zudem weist die Platte 4 zwei Langlöcher 25 auf, durch die eine erste Stange 41 (vergleiche Fig. 3) an der Aufreißhakenvorrichtung 1 mittels Schrauben 45 befestigt werden kann. In den Figuren 4 und 5 sind alternative Ausführungsform dieses Befestigungsmechanismus gezeigt. Die beiden Ausführungsformen unterscheiden sich dabei im Wesentlichen dadurch, dass in der Ausführungsform in Fig. 5 der Halteblock 6 gleich dem Haltblock 6 der Ausführungsform der Figuren 1 bis 3 ausgeführt ist und zusätzlich ein Spannelement 7 vorgesehen ist, zur Befestigung der Stange 41 an der Platte 4. Dagegen ist in der Ausführungsform in Fig. 4 der Halteblock 6 einstückig ausgeführt und umfasst damit das Spannelement 7 zur Befestigung der Stange 41 an der Platte 4 bereits.Also attached to the plate 4 is a mounting block 6 by means of which the tear hook device 1 can be longitudinally slidably fixed to the transport direction of a product by means of a screw 20 on a crosshead 90 (see FIG. 4) to position the tear hook 15 of the corresponding geometry of a product Adjust 50a. In addition, the plate 4 has two elongated holes 25, by means of which a first rod 41 (see FIG. 3) can be fastened to the tear hook device 1 by means of screws 45. In Figures 4 and 5 alternative embodiment of this attachment mechanism are shown. The two embodiments differ essentially in that in the embodiment in Fig. 5, the holding block 6 is the same as the support block 6 of the embodiment of Figures 1 to 3 and additionally a clamping element 7 is provided for fixing the rod 41 to the plate 4. In contrast, in the embodiment in Fig. 4, the holding block 6 is made in one piece and thus includes the clamping element 7 for fixing the rod 41 to the plate 4 already.

In diesem Spanelement ist ein Zapfen 8, der einseitig abgeplattet ist, mit der Schraube 46 befestigbar. Der Zapfen 8 ist durch die Platte 4 hindurchgeführt und anderseitig mit dem Befestigungsklotz 47 verbindbar. Vermittels des Befestigungsklotzes 47 ist die Position der Stange 41 und damit der Leitfläche 44 bzw. des Laufrads 70 bezüglich des Aufreißhakens 15 verstellbar. Die Stange 41 ist in dem Befestigungsklotz 47 durch die Schraube 48 feststellbar. Der Abstand zwischen der Platte 4 und der Stange 41 kann über Verschiebung entlang des Zapfens 8 verändert werden. Dadurch ergeben sich zusätzliche Einstellungsmöglichkeiten, um die Vorrichtung optimal auf unterschiedliche Produkte abstimmen zu können.In this clamping element, a pin 8, which is flattened on one side, fastened with the screw 46. The pin 8 is passed through the plate 4 and on the other side with the mounting block 47 connectable. By means of the mounting pad 47, the position of Rod 41 and thus the guide surface 44 and the impeller 70 with respect to the Aufreißhakens 15 adjustable. The rod 41 is fixed in the mounting block 47 by the screw 48. The distance between the plate 4 and the rod 41 can be changed by displacement along the pin 8. This results in additional adjustment options in order to be able to optimally tune the device to different products.

Die erste Stange 41 ist mit einer weiteren zweiten Stange 42 verbunden, die an ihrem Ende eine Leitfläche 44 trägt, mittels der die Produkte 50a dem Aufreißhaken 15 zugeleitet werden. Die Leitfläche 44 ist im Einlaufbereich mit einer Einlaufschräge 43 versehen. Je nach Länge des vorlaufenden Zuschnitts 52 in Transportrichtung kann vermittels der Schrauben 45 die Aufreißhakenvorrichtung 1 in Transportrichtung verschoben werdenThe first rod 41 is connected to a further second rod 42 which carries at its end a guide surface 44, by means of which the products 50a are fed to the tear hook 15. The guide surface 44 is provided in the inlet region with an inlet slope 43. Depending on the length of the leading blank 52 in the transport direction, the Aufreißhakenvorrichtung 1 can be moved in the transport direction by means of screws 45

Alle in Fig. 1 bis 5 gezeigten Ausführungsformen der Vorrichtung weisen als Verbindungsglieder der Stangen 41, 42, 71 Befestigungsklötze 61 auf. Der Befestigungsklotz 61 weist eine Bohrung und eine im Querschnitt kreisabschnittsförmige Aussparung auf. Durch die im Querschnitt kreisabschnittsförmige Aussparung ist die Stange 41 geführt und durch die Befestigungsscheibe 62 fixierbar. Dazu weist die Stange 41 eine Abplattung auf, durch die eine Einstellung der Lage der vertikalen Stangen 42, 71 möglich ist, so dass die vertikalen Stangen 42, 71 in der Arbeitsebene des Aufreißhakens 15 liegen. Allerdings ist es möglich, die Stange 41 auch in einer abweichenden Winkelstellung zu befestigen, in dem die Abplattung der Stange 41 beispielsweise um 180° um die Achse der Stange 41 gedreht wird. Zwar fluchtet dann die Abplattung nicht mehr mit der Außenfläche des Befestigungsklotzes 61, dafür ist eine Einstellungsmöglichkeit der vertikalen Stangen 42 und 71 um die mit dem durch den Pfeil mit dem Bezugszeichen 81 gekennzeichneten Drehrichtung um die Achse der Stange 41 möglich. Damit lässt sich das Laufrad 70 bzw. die Leitfläche 44 aus der Arbeitsebene des Aufreißhakens 15 unabhängig voneinander seitlich verschwenken.All of the embodiments of the device shown in FIGS. 1 to 5 have fastening blocks 61 as connecting members of the rods 41, 42, 71. The mounting block 61 has a bore and a circular cross section in cross-section-shaped recess. By the cross-sectionally circular portion-shaped recess, the rod 41 is guided and fixed by the mounting plate 62. For this purpose, the rod 41 has a flattening by which an adjustment of the position of the vertical rods 42, 71 is possible, so that the vertical rods 42, 71 lie in the working plane of the Aufreißhakens 15. However, it is possible to fix the rod 41 in a different angular position in which the flattening of the rod 41 is rotated for example by 180 ° about the axis of the rod 41. Although then the flattening is no longer aligned with the outer surface of the mounting pad 61, this is an adjustment of the vertical rods 42 and 71 to the direction indicated by the arrow with the reference numeral 81 rotation about the axis of the rod 41 is possible. This allows the impeller 70 and the guide surface 44 from the working plane of Aufreißhakens 15 independently pivot laterally.

Durch die Bohrung im Befestigungsklotz 61 ist ein ebenfalls mit einer Bohrung versehener Befestigungszapfen 63 geführt. Durch die Bohrung im Befestigungszapfen 63 ist die Stange 42 bzw. Stange 71 geführt und mit der Befestigungsscheibe 62 gegen den Befestigungsklotz 61 fixierbar. Der Befestigungszapfen 63 ist im unfixierten Zustand frei um seine Achse drehbar, so dass die in Fig. 4 möglichen Einstellungen der Stange 42, 42' möglich sind, also etwa eine Variation der Länge des unten aus dem Befestigungszapfen 63 herausragenden Teils der Stange 42, 42' und dessen Winkellage bezüglich der Senkrechten. Diese Variation ist durch die Rotationsrichtung mit dem Pfeil mit dem Bezugszeichen 82 in Fig. 4 gekennzeichnet. Die gleichen Einstellungsmöglichkeiten ergeben sich natürlich auch für die hintere vertikale Stange 71. Dadurch ist eine schnelle und einfache Anpassung der Aufreißhakenvorrichtung 1 an unterschiedliche Produkte 50a möglich.Through the hole in the mounting block 61 a likewise provided with a bore mounting pin 63 is guided. Through the hole in the mounting pin 63, the rod 42 and rod 71 is guided and fixed with the mounting plate 62 against the mounting block 61. The mounting pin 63 is freely rotatable in the unfixed state about its axis, so that the possible in Fig. 4 settings of the rod 42, 42 'are possible, ie about a variation of the length of the bottom of the mounting pin 63 protruding part of the rod 42, 42 'and its angular position with respect to the vertical. This variation is indicated by the direction of rotation with the arrow with the reference numeral 82 in Fig. 4. Of course, the same adjustment options also result for the rear vertical bar 71. This makes a quick and easy adaptation of the Aufreißhakenvorrichtung 1 to different products 50a possible.

Im Betrieb wird der Aufreißhaken 15 von einem vorlaufenden Zuschnitt 52 eines Produkts 50a ausgelenkt und dabei in eine Pendelbewegung um die Achse 17 versetzt. Der vorlaufende Zuschnitt 52, der durch eine Rilllinie 51 von dem Produkt 50a abgegrenzt wird, wird durch den Aufreißhakenwinkel 16 mitgenommen und knickt dabei an der dafür vorgesehenen Rilllinie 51 ein. Dies ist in Fig. 3 für die Aufreißhakenposition 15a gezeigt. Je nach Länge des vorlaufenden Zuschnitts 52 in Transportrichtung wird der Aufreißhaken 15 unterschiedlich weit um einen Auslenkwinkel α um die Achse 17 ausgelenkt, etwa bis zur Aufreißhakenposition 15b. Dabei kann der bei dem Vorgang überstrichene Winkel zwischen 30° und 120° liegen, vorteilhafterweise liegt die maximal mögliche Auslenkung über 90°. In der Aufreißhakenposition 15c kann der Aufreißhaken 15 mit einer Rastklemme 19 außerhalb der Arbeitsebene fixiert werden.In operation, the tear-open hook 15 is deflected by a leading blank 52 of a product 50a and thereby displaced in a pendulum motion about the axis 17. The leading blank 52, which is delimited by a crease line 51 of the product 50a, is carried along by the Aufraißhakenwinkel 16 and thereby kinks at the designated crease line 51 a. This is shown in Fig. 3 for the Aufhißhakenposition 15a. Depending on the length of the leading blank 52 in the transport direction of the Aufreißhaken 15 is deflected differently far around a deflection angle α about the axis 17, approximately up to the Aufreißhakenposition 15b. In this case, the swept in the process angle between 30 ° and 120 °, advantageously, the maximum possible deflection is about 90 °. In the Aufraißhakenposition 15c of Aufreißhaken 15 can be fixed with a detent clip 19 outside the working plane.

Wird das Produkt weiter in Transportrichtung geschoben steht kurz darauf der vorlaufende Zuschnitt 52 senkrecht auf dem am Aufreißhaken 15, was der maximalen Auslenkung des Aufreißhakens 15 entspricht. Danach kommt der vorlaufende Zuschnitt 52 mit der Spitze des Aufreißhakenwinkels 16 in Kontakt und wird um die Rilllinie 51 umgeschlagen, zur Vorbereitung des Falzes. Nachdem der Aufreißhaken 15 seine maximale Auslenkung erreicht hat, wirkt die Rückstellkraft des elastischen Elements 14 derart auf den Aufreißhaken 15 ein, dass dieser seine Ausgangsposition wieder einnimmt.If the product is pushed further in the direction of transport, shortly before the leading blank 52 is perpendicular to the tear-open hook 15, which corresponds to the maximum deflection of the tear-open hook 15. Thereafter, the leading blank 52 comes into contact with the tip of the tear hooking angle 16 and is turned over around the score line 51 to prepare the fold. After the Aufreißhaken 15 has reached its maximum deflection, the restoring force of the elastic member 14 acts on the Aufreißhaken 15 so that it resumes its initial position.

Liste der BezugszeichenList of reference numbers

11
Aufreißhakenvorrichtungcatch hook
22
Gehäusecasing
33
Rohrpipe
44
Platte6Platte6
66
Halteblockholding block
77
Spannelementclamping element
88th
Zapfenspigot
99
Spannmutterlocknut
1010
BuchseRifle
1212
Dämpferdamper
1313
Riemenbelt
1414
Federfeather
1515
AufreißhakenAufreißhaken
15a15a
Aufreißhaken in einer ersten ausgelenkten PositionPull-tab in a first deflected position
15b15b
Aufreißhaken in einer zweiten ausgelenkten PositionPull-tab in a second deflected position
15c15c
Aufreißhaken in einer dritten ausgelenkten PositionPull-tab in a third deflected position
1616
Aufreißhakenwinkelcatch hook
1717
Achseaxis
1818
Wellewave
2020
Schraubescrew
2323
Schraubescrew
2525
LanglochLong hole
2626
LanglochLong hole
2929
Anschlagattack
3030
Bolzenbolt
3434
Spannstiftdowel pin
4141
Stangepole
42, 42'42, 42 '
Stangepole
4343
Einführschrägechamfer
4444
Leitflächebaffle
4545
Schraubescrew
4646
Schraubescrew
4747
Befestigungsklotzmounting block
4848
Schraubescrew
50a50a
Produktproduct
5151
Rillliniegrooved line
5252
vorlaufender Zuschnittleading cut
6161
Befestigungsklotzmounting block
6262
Befestigungsscheibemounting disk
6363
Befestigungszapfenfastening pins
7070
LaufradWheel
7171
Stangepole
8181
Rotationsrichtungdirection of rotation
8282
Rotationsrichtungdirection of rotation
9090
Traversetraverse
αα
Auslenkwinkelangle of deflection

Claims (10)

  1. An apparatus in a folding box gluing machine having a catch hook (15, 16) mounted such that it can rotate about an axis (17) in order to initiate a leading fold in a product (50a), having restoring devices (13, 14) for the catch hook, the restoring devices (13, 14) comprising at least an elastic element (14),
    characterized in that
    the axis (17) of the catch hook (15, 16) is connected with the elastic element (14) by means of a rolling belt (13).
  2. The apparatus according to claim 1,
    characterized in that
    the restoring devices (13, 14) comprise setting devices (3, 9, 34) for the restoring force of the catch hook (15, 16).
  3. The apparatus according to claim 2,
    characterized in that
    the setting devices (3, 9, 34) for the restoring force of the catch hook (15, 16) include pre-tensioning devices (3, 9, 34) with which a specific pre-stress can be set in the elastic element (14).
  4. The apparatus according to one of claims 1 to 3,
    characterized in that
    the elastic element (14) is a spring (14), the fixing point (34) of which is adjustable for producing the desired pre-stress.
  5. The apparatus according to one of claims 1 to 4,
    characterized in that
    the apparatus comprises a damping device (12) by means of which the restoring movement of the catch hook (15, 16) can be damped.
  6. The apparatus according to claim 5,
    characterized in that
    the damping device (12) is an engineering rubber buffer.
  7. The apparatus according to one of claims 1 to 6,
    characterized in that
    the catch hook (15, 16) is mounted such that a rotation of the catch hook (15, 16) about its axis (17) by about 60° to 120°, in particular about 90° is possible.
  8. The apparatus according to one of claims 1 to 7,
    characterized in that
    the device comprises a latching clamp (19) by means of which the catch hook (15, 16) can be removed permanently from a working plane.
  9. The apparatus according to one of claims 1 to 7,
    characterized in that
    the catch hook (15, 16) is fixed to the shaft (18) such that it can be released and rotated about its own longitudinal axis, so that the angle between the catch hook angle (16) and the running direction of the blank can be varied, in particular in a range of -70° to +70°.
  10. A folding box gluing machine comprising a catch hook device (1) according to one of claims 1 to 9.
EP05102657A 2004-04-30 2005-04-05 Folding hook Not-in-force EP1591231B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004021331 2004-04-30
DE102004021331A DE102004021331A1 (en) 2004-04-30 2004-04-30 Aufreißhaken

Publications (2)

Publication Number Publication Date
EP1591231A1 EP1591231A1 (en) 2005-11-02
EP1591231B1 true EP1591231B1 (en) 2007-01-03

Family

ID=34939137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05102657A Not-in-force EP1591231B1 (en) 2004-04-30 2005-04-05 Folding hook

Country Status (8)

Country Link
US (1) US7179216B2 (en)
EP (1) EP1591231B1 (en)
JP (1) JP4638272B2 (en)
CN (1) CN100542793C (en)
AT (1) ATE350212T1 (en)
DE (2) DE102004021331A1 (en)
ES (1) ES2280067T3 (en)
HK (1) HK1083801A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102012013757A1 (en) 2012-07-12 2014-01-16 Heidelberger Druckmaschinen Aktiengesellschaft Tool-holding device
CN103922181A (en) * 2014-04-10 2014-07-16 江苏东方印务有限公司 Time-saving and labor-saving corrugated board bottom hooking device good in folding effect
CN106927351A (en) * 2017-04-19 2017-07-07 苏州市淞舜五金有限公司 A kind of pulley metal folding drag hook
KR102532480B1 (en) * 2021-11-25 2023-05-12 김재정 Apparatus for manufacturing case

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US2899872A (en) * 1959-08-18 labombarde
US2857827A (en) * 1954-08-09 1958-10-28 Raymond A Labombarde Apparatus for folding leading flaps
US2879699A (en) * 1957-02-26 1959-03-31 Raymond A Labombarde Folding apparatus for leading flaps
NL127955C (en) * 1961-01-31
DE1207778B (en) * 1964-05-27 1965-12-23 Jagenberg Werke Ag Device for erecting the bottom parts on folding box blanks
DE1211474B (en) 1964-12-15 1966-02-24 Jagenberg Werke Ag Device for erecting the bottom parts on folding box blanks
DE1906009A1 (en) * 1969-02-07 1970-09-03 Mario Nava Device for folding the bottom parts of box blanks
US3902407A (en) * 1969-09-18 1975-09-02 Jagenberg Werke Ag Device for setting up folding box sections
DE2017471C3 (en) * 1970-04-11 1973-12-06 Jagenberg-Werke Ag, 4000 Duesseldorf Device for erecting the bottom parts of folding box blanks
DE2540649C2 (en) * 1975-09-12 1982-10-21 Heinz-Hermann 4904 Enger Pott Folding device for folding box blanks
DE8019092U1 (en) * 1980-07-16 1980-10-16 Jagenberg-Werke Ag, 4000 Duesseldorf BRACKET FOR A RIP HOOK
US4478328A (en) * 1981-12-23 1984-10-23 The United States Of America As Represented By The Secretary Of Agriculture Automatic hide processing apparatus
US4544368A (en) * 1984-05-10 1985-10-01 Labombarde Raymond A Case presenter apparatus and method
JPS6137919U (en) * 1984-08-10 1986-03-10 サンエンヂニアリング株式会社 Paper folding hook device in box making machine

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ES2280067T3 (en) 2007-09-01
JP4638272B2 (en) 2011-02-23
DE102004021331A1 (en) 2005-11-24
DE502005000274D1 (en) 2007-02-15
US20050245375A1 (en) 2005-11-03
JP2005319791A (en) 2005-11-17
ATE350212T1 (en) 2007-01-15
EP1591231A1 (en) 2005-11-02
US7179216B2 (en) 2007-02-20
HK1083801A1 (en) 2006-07-14
CN100542793C (en) 2009-09-23
CN1693055A (en) 2005-11-09

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