EP1422074B1 - Dispositif d'agrafage, machine d'assemblage et d'agrafage comprenant ce dispositif d'agrafage et méthode d'agrafage utilisant ce dispositif d'agrafage ou cette machine d'assemblage et d'agrafage - Google Patents

Dispositif d'agrafage, machine d'assemblage et d'agrafage comprenant ce dispositif d'agrafage et méthode d'agrafage utilisant ce dispositif d'agrafage ou cette machine d'assemblage et d'agrafage Download PDF

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Publication number
EP1422074B1
EP1422074B1 EP03026363.6A EP03026363A EP1422074B1 EP 1422074 B1 EP1422074 B1 EP 1422074B1 EP 03026363 A EP03026363 A EP 03026363A EP 1422074 B1 EP1422074 B1 EP 1422074B1
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EP
European Patent Office
Prior art keywords
stitching
gather
stitcher
stapling
clincher
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
EP03026363.6A
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German (de)
English (en)
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EP1422074A1 (fr
Inventor
Thomas Gerlach
Dirk Dröge
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Hohner Maschinenbau GmbH
Original Assignee
Hohner Maschinenbau GmbH
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Publication of EP1422074A1 publication Critical patent/EP1422074A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B4/00—Permanently attaching together sheets, quires or signatures by discontinuous stitching with filamentary material, e.g. wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C1/00—Collating or gathering sheets combined with processes for permanently attaching together sheets or signatures or for interposing inserts
    • B42C1/12—Machines for both collating or gathering and permanently attaching together the sheets or signatures

Definitions

  • the invention relates to a saddle stitcher, a stapling device and a stapling method according to the preambles of claims 1, 23 and 24.
  • stapling heads which are able to separate from a supplied from a supply roll wire a required length to form the separated piece into a staple, this in the zu drive in staple material and produce by bending over the clip ends the final staple shape after driving.
  • Such stapling heads are used, for example, in so-called saddle stitchers, which have a collecting and transport unit with which the stapled material is assembled and fed to the stapling.
  • a staple carriage having two or more stapling heads is movably mounted in a portion of the collecting and transporting unit and staples the material to be stapled together while the collecting and transporting unit continues to run, that is, the stapling carriage moves during stapling synchronous with the stapled material that is thus not stopped from the transport movement, but is stapled in the movement.
  • the invention has the object to provide a stapling device for use in stapling machines, by means of which the conversion required for various products is facilitated.
  • the invention is characterized in that a controllable drive unit for a stapling head for automatically adjusting the distance between the stapling heads is provided, wherein furthermore an actuatable by a controllable drive locking device is provided for at least one stapling head.
  • the drive for the locking device is provided in order to continue to allow the largely automated operation of the device according to the invention.
  • the setting of the clincher is made according to at least one displaceable clincher by a drive unit.
  • the staple end is bent after piercing the material to be stapled. Therefore, positioning of the clincher along with the positioning of the stapling head is required. This can be accomplished in principle by the assembly of the stapling head and clincher on a common sliding carriage.
  • the guide for the displaceable clincher (s) and the displaceable stapling head (s) are formed separately from each other.
  • the drive for the displacement of a clincher with the drive for the associated stapling head for example, mechanically or possibly also electrically or electronically coupled, so that the clincher position is always adapted to the stapling head position.
  • the drive unit for the stitching heads and / or clincher is designed to be controllable.
  • a control is preferably carried out electrically or electronically, but it can also in other ways, such as pneumatic or be realized hydraulically.
  • the result of a controllable drive unit in a device according to the invention is the advantage of automatically making the change in distance of the stitching heads and / or clincher.
  • Such a stapling device can be used in a fully automatic, which controls the stapling automatically, for example, when loading with different material to be stapled as needed.
  • a guide is preferably provided on which the stitching heads and / or clinchers are guided in their movement.
  • a guide is formed in an advantageous embodiment as a linear guide.
  • a linear guide corresponds to the type of movement required for the change in distance and, on the other hand, for example.
  • Such a linear guide can moreover be rigidly connected to the corresponding stapling head unit, so that a reciprocal interaction results for improving the stability.
  • the stability of the stapling head unit and vice versa improved by the stapling head unit, the stability of the linear guide through the rigid connection by the linear guide.
  • the linear guide is advantageously supported substantially over the entire length of the stapling head unit.
  • a lighter stapling head unit offers great advantages, in particular in connection with the above-mentioned saddle stitchers in which the stapling head unit is designed as a so-called stapling carriage, since it is easier to accelerate and decelerate and accordingly requires less effort in the drive and its control.
  • a spindle is preferably used as a drive unit for the adjustment of the stapling head distance and / or the clincher distance.
  • the distance can be accomplished without major additional design effort by means of a motor which causes the spindle in rotation.
  • the adjustment can also accomplish with high precision and, if necessary, correspondingly high restoring forces.
  • a spindle further brings with it the advantage that the drive can be made self-locking, i. the motor only has to be energized for the movement.
  • a fixing of the stapling head and / or clincher position by appropriate design of the motor e.g. be made in the form of a stepping motor with holding torque.
  • only one stapling head and / or only one clincher is displaceably driven via a spindle, while another stapling head and / or clincher is arranged statically with respect to the stapling head unit.
  • two spindle drives and two stapling heads and / or two clincher can be independently positioned almost anywhere.
  • the stitching heads and / or clincher are driven so that two stitching heads or two clincher to drive in the opposite direction to set the desired distance between the stitching heads or between the clinicians.
  • the desired distance can be adjusted by the use of two or more spindles or else by spindle sections with different pitches.
  • the drive for stapling head adjustment and / or clincher setting is electrically formed, which is possible, for example, in the combination of a spindle drive with electric motor as stated above.
  • a position detection sensor is additionally provided for at least one stapling head position and / or at least one clincher position.
  • This one stapling head position and / or clincher position can represent, for example, a reference position from which the setting of the desired position is made in each case. This can ensure that the approach of the desired position is always carried out under the same conditions, in particular from the same direction, so that a mechanical play in the drive or transmission unit always causes a reproducible and thus to be considered in the position adjustment effect.
  • the locking device is provided so that it fixes the set position of the stapling head or the stitching heads and / or the clincher or the clincher.
  • Such an additional locking unit is particularly advantageous in the case of moving stitching carriages of the abovementioned type, since high accelerations are to be accommodated which should not be reflected in the stapling head and / or clincher position.
  • these forces need not be included or at least only partially on the drive unit and the adjustment.
  • the locking device is formed in a particular embodiment as a clamping device.
  • a clamping device can be easily detachable and can also be used over a certain path length in different positions at any time.
  • the drive for the locking device can be formed electrically, pneumatically and / or hydraulically.
  • intermediary transmission elements e.g. a Bondenyak, a linkage or the like may be provided.
  • the clamping device is realized, for example, by providing a clamping element which is movable relative to the stapling head unit and a clamping element which is stationary relative to the stapling head unit. By actuating the movable clamping element while the desired locking effect is achieved.
  • a movable clamping element with the stapling head and / or clincher is slidably formed or connected thereto.
  • Such a configuration facilitates the jamming of the stapling head and / or clincher in different positions, wherein in principle also a clamping element extending over the entire adjustment range, for example in the form of a clamping rail or the like, would be conceivable for the stapling head or the stapling heads and / or the clincher or to fix the clinchers in different positions.
  • the clamping element stationary with respect to the stapling head unit is preferably separate, in particular in the case of a linear guide trained by the leadership. This makes it possible to avoid additional stress on the stapling head or clincher guide.
  • a pressure and / or tension element is also advantageously provided, which acts as far as possible perpendicular to the direction of displacement.
  • This vertical force of the intended pressure and / or tension element prevents an undesirable displacement of the stapling head and / or the clincher is caused in his leadership upon actuation of the clamping device or the pressure and / or tension element.
  • a plunger is provided as a movable clamping element.
  • pneumatic or hydraulic plunger can be easily attached to a movable stapling head and / or a movable clincher and driven in different positions for actuation.
  • a clamping drive is provided with power transmission for actuating the movable clamping element.
  • the drive can be sized small despite the application of high clamping forces and thus the effort can be reduced.
  • a clamping drive with power transmission knee lever and / or wedge rollers are used, for example.
  • the clamping can be mechanically locked after actuation, for example by spring force or maintained by the appropriate actuating medium, such as compressed air or hydraulic fluid. It is only essential that the locking device is reliably locked when the desired stapling head and / or Clincher position is set and an operation is recorded, in which the stapling device according to the invention is moved and thereby exposed to corresponding acceleration forces.
  • a stapling device for a saddle stitcher according to claim 23 is used.
  • These saddle stitchers are characterized in that a stapling carriage or stapling carriage is moved during stapling with the moving in the collecting and transport unit to stapling stack of sheets, so that the stapling takes place during the transport of the material to be stapled. Accordingly, the material to be stapled does not have to be stopped or braked for stapling and then accelerated again for further transport.
  • the stapling carriage or stapling carriage is subjected to corresponding braking and acceleration movements in order to execute the synchronizing movement during the stapling operation on the one hand and, on the other hand, to return to the starting position for the next sheet stack.
  • the stapling device 1 comprises a stapling head unit in the form of a movable stapling carriage 2, which is mounted displaceably on a linear guide 3.
  • the stitching carriage is movable in synchronism with a collecting and transport unit for collecting and transporting the material to be stapled and thus used in a so-called saddle stitcher.
  • two stitching heads 4, 5 are slidably mounted in the direction of the double arrow P.
  • the stitching heads 4, 5 are in this case mounted on a stitching head carriage 6, 7.
  • the stitching head carriage 6, 7 engage around two linear guides 8, along which the displacement in the direction of the double arrow P takes place.
  • a spindle 9, 10 is provided in each case.
  • the spindle 9 is in this case in engagement with an unspecified internal thread of the stapling head carriage 6, while the spindle 10 is in engagement with a corresponding, likewise unspecified internal thread of the stapling head carriage 7. Accordingly, the spindle 9 passes through the stapling head carriage 7 without adhesion, while the spindle 10 passes through the stitching head carriage 6 without traction.
  • the clincher 13, 14 serve to bend the staples after being pushed into the material to be stapled.
  • the clincher cars 15, 16 are guided in linear guides 17, 18 and are connected via two spindles 19, 20 corresponding to the stapling head carriage 6, 7 driven so that the clincher cars 15, 16 with thereon clinchers 13, 14 perform a synchronous movement with the stapling head carriage 6, 7.
  • the front side can be seen that the drive of the spindles 19, 20 via two other pulleys 21, 22 takes place, wherein the drive via a gear transmission 23, 24 (see. FIG. 2 ) is positively coupled with the belt drive of the stapling head carriage 6, 7.
  • the clinchers 13, 14 are just like the intermediate pieces 25, 26, with which the clinchers 13, 14 are attached to the respective clincher cars 15, 16, bolted and thus interchangeable. This is when converting to other clip sizes and in maintenance or repair case of advantage.
  • FIG. 2 two longitudinal slots 27, 28 in a kind of intermediate wall 29 can be seen, which are penetrated by two bolt holders 30, 31, 32, 33.
  • the bolt holders 30, 31, 32, 33 are fixedly connected on the opposite side of the intermediate wall 29 with the stitching head carriage 6, 7.
  • Each two plunger 34, 35, 36, 37 are based in the side region of the slots 27, 28 on the intermediate wall 29 and thus jam the respective stitching head carriage 6, 7 on the intermediate wall 29.
  • a toggle mechanism 38, 39 is provided to tension the plunger 34, 35, 36, 37.
  • the toggle mechanism 38, 39 may for example be spring-loaded or pneumatically, hydraulically or electrically braced and releasable.
  • two pneumatic cylinders 40, 41 for releasing spring-loaded toggle mechanisms 38, 39 are provided. As a result, a pneumatic control is required only during the adjustment process.
  • the toggle mechanisms 38, 39 with the plungers 34, 35, 36, 37 fix the stitching head carriage 6, 7 in the desired position by a jamming on the intermediate wall 29.
  • the stapling device 1 in this case must be accelerated, stopped, retracted, stopped again and accelerated again.
  • the acceleration forces occurring in this case need only be partially absorbed by the spindle drives 9, 10 in the present embodiment.
  • the majority of the acceleration forces is absorbed by the clamping device by means of the plunger 34, 35, 36, 37 and the intermediate wall 29.
  • FIG. 2 on the back recognizable that the linear guide 8 is screwed with equidistant mounting screws 42 substantially over its entire length with the stapling carriage 2.
  • the stability of the linear guide and the housing of the stitching carriage 2 is improved, whereby weight can be saved by appropriate material savings or choice of material on the part of the linear guide or the housing.
  • FIG. 2 is also through the recesses 43 and 44, the arrangement of the two drive motors 45, 46 for the drive of the stapling cars 6, 7 and the clincher 15, 16 recognizable.
  • the drive motors 45, 46 are housed inside the housing of the stitching carriage 2 so that they do not form an outside overhang.
  • a locking or clamping device is provided only for the fixation of the stitching heads, but not for the clincher. Depending on the embodiment, however, can also for the clinchers appropriate locking be provided.

Claims (24)

  1. Encarteuse-piqueuse comportant au moins deux têtes piqueuses, fixées sur une unité de têtes piqueuses sous la forme d'un chariot d'agrafage (2) et destinées à agrafer un matériau en forme de feuille, en particulier du papier, du carton ou tout élément similaire, ledit chariot d'agrafage pouvant être déplacé conjointement avec le matériau à agrafer déplacé dans une unité d'encartage et de transport, de telle sorte que l'agrafage est réalisé pendant le transport du matériau à agrafer, la distance entre lesdites au moins deux têtes piqueuses pouvant être réglée, au moins une tête piqueuse (4, 5) étant mobile, caractérisée en ce qu'il est prévu une unité d'entraînement (9-12, 45, 46) activable pour une tête piqueuse en vue du réglage automatique de la distance entre les têtes piqueuses (4, 5), il est prévu, en outre, un dispositif de blocage (27-41) pour au moins une tête piqueuse (4, 5), lequel peut être actionné par un système d'entraînement (40, 41) apte à être commandé.
  2. Encarteuse-piqueuse selon la revendication 1, caractérisée en ce qu'il est prévu au moins deux enclumes de pliage (13, 14), au moins l'une des enclumes de pliage (13, 14) étant mobile, et une unité d'entraînement (19-22, 45, 46) pour le réglage de la distance entre les enclumes de pliage (13, 14).
  3. Encarteuse-piqueuse selon la revendication 1 ou 2, caractérisée en ce que les têtes piqueuses (4, 5) et/ou les enclumes de pliage (13, 14) sont logées de manière mobile dans un guidage (8, 17, 18).
  4. Encarteuse-piqueuse selon l'une quelconque des revendications 2 à 3, caractérisée en ce que l'unité d'entraînement (9-12, 19-22, 45, 46), destinée au réglage de la distance entre les enclumes de pliage (13, 14) ou entre les têtes piqueuses (4, 5) ou entre les têtes piqueuses et entre les enclumes de pliage (13, 14), peut être commandée par vole électrique, électronique, pneumatique et/ou hydraulique.
  5. Encarteuse-piqueuse selon l'une quelconque des revendications 2 à 4, caractérisée en ce que l'unité d'entraînement (9-12, 45, 46) destinée au réglage de la distance entre les têtes piqueuses (4, 5) est couplée à l'unité d'entraînement (19-22, 45, 46) destinée au réglage de la distance entre les enclumes de pliage (13, 14).
  6. Encarteuse-piqueuse selon l'une quelconque des revendications 3 à 5, caractérisée en ce que le guidage (8, 17, 18) pour les têtes piqueuses et/ou les enclumes de pliage est réalisé sous la forme d'un guidage linéaire.
  7. Encarteuse-piqueuse selon l'une quelconque des revendications 3 à 6, caractérisée en ce que le guidage (8, 17, 18) est relié de manière immobile à l'unité de têtes piqueuses (2).
  8. Encarteuse-piqueuse selon l'une des revendications 6, 7, caractérisée en ce que le guidage linéaire (8, 17, 18) est supporté, sensiblement sur toute sa longueur, par l'unité de têtes piqueuses (2).
  9. Encarteuse-piqueuse selon l'une quelconque des revendications 2 à 8, caractérisée en ce que l'unité d'entraînement (9-12, 45, 46) destinée au réglage de la distance entre les têtes piqueuses (4, 5) et l'unité d'entraînement (19-22, 45, 46) destinée au réglage de la distance entre les enclumes de pliage (13, 14) contiennent une commande à broche (9, 10, 19, 20).
  10. Encarteuse-piqueuse selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu un capteur de position pour au moins une position des têtes piqueuses et/ou au moins une position des enclumes de pliage.
  11. Encarteuse-piqueuse selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu une position de référence pour au moins une tête piqueuse et une enclume de pliage, à partir de laquelle est effectué le réglage de la position de consigne.
  12. Encarteuse-piqueuse selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu un réglage de position.
  13. Encarteuse-piqueuse selon l'une quelconque des revendications précédentes, caractérisée en ce qu'il est prévu un capteur de collision pour éviter les collisions pendant le réglage de la position des têtes piqueuses et/ou de la position des enclumes de pliage.
  14. Encarteuse-piqueuse selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de blocage (27-41) est prévu pour au moins une tête piqueuse (4, 5) et/ou au moins une enclume de pliage.
  15. Encarteuse-piqueuse selon la revendication 14, caractérisée en ce que le système d'entraînement (40, 41) pour le dispositif de blocage (27-41) peut être commandé par voie électrique, pneumatique et/ou hydraulique.
  16. Encarteuse-piqueuse selon l'une quelconque des revendications 14 à 15, caractérisée en ce que le dispositif de blocage (27-41) est réalisé sous la forme d'un dispositif de serrage.
  17. Encarteuse-piqueuse selon la revendication 16, caractérisée en ce que le dispositif de serrage comporte un élément de serrage (29) fixe par rapport au chariot d'agrafage (2).
  18. Encarteuse-piqueuse selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un élément de serrage mobile (34, 35, 36, 37) est relié à la tête piqueuse (4, 5) et/ou à l'enclume de pliage (13, 14).
  19. Encarteuse-piqueuse selon les revendications 16, 17, caractérisée en ce que le dispositif de serrage est réalisé séparément du guidage (8) destiné au déplacement des têtes piqueuses.
  20. Encarteuse-piqueuse selon l'une quelconque des revendications 16 à 18, caractérisée en ce que le dispositif de serrage comporte un élément de pression et/ou de traction (34, 35, 36, 37) qui exerce sa force perpendiculairement à la direction de déplacement de la tête piqueuse et/ou de l'enclume de pliage correspondantes.
  21. Encarteuse-piqueuse selon la revendication 17, caractérisée en ce qu'un poinçon (34, 35, 36, 37) est prévu pour former l'élément de serrage.
  22. Encarteuse-piqueuse selon l'une quelconque des revendications 18 à 21, caractérisée en ce qu'il est prévu une transmission des forces (38, 39) pour le système d'entraînement de l'élément de serrage mobile.
  23. Piqueuse pour une encarteuse-piqueuse selon l'une quelconque des revendications 1 à 22, comportant au moins deux têtes piqueuses, fixées sur une unité de têtes piqueuses sous la forme d'un chariot d'agrafage (2) et destinées à agrafer un matériau en forme de feuille, en particulier du papier, du carton ou tout élément similaire, ledit chariot d'agrafage pouvant être déplacé conjointement avec le matériau à agrafer déplacé dans une unité d'encartage et de transport, de telle sorte que l'agrafage est réalisé pendant le transport du matériau à agrafer, la distance entre lesdites au moins deux têtes piqueuses pouvant être réglée, au moins une tête piqueuse (4, 5) étant mobile, caractérisée en ce qu'il est prévu une unité d'entraînement (9-12, 45, 46) activable pour une tête piqueuse en vue du réglage automatique de la distance entre les têtes piqueuses (4, 5), il est prévu, en outre, un dispositif de blocage (27-41) pour au moins une tête piqueuse (4, 5), lequel peut être actionné par un système d'entraînement (40, 41) apte à être commandé.
  24. Procédé pour l'agrafage d'un matériau en forme de feuille, en particulier du papier, du carton ou tout élément similaire, caractérisé en ce que l'on utilise une encarteuse-piqueuse selon l'une quelconque des revendications 1 à 22.
EP03026363.6A 2002-11-22 2003-11-18 Dispositif d'agrafage, machine d'assemblage et d'agrafage comprenant ce dispositif d'agrafage et méthode d'agrafage utilisant ce dispositif d'agrafage ou cette machine d'assemblage et d'agrafage Expired - Lifetime EP1422074B1 (fr)

Applications Claiming Priority (2)

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DE10254805 2002-11-22
DE10254805 2002-11-22

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EP1422074B1 true EP1422074B1 (fr) 2014-06-11

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US (2) US7159748B2 (fr)
EP (1) EP1422074B1 (fr)
DE (1) DE10354362A1 (fr)

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US7159748B2 (en) 2007-01-09
DE10354362A1 (de) 2004-06-03
EP1422074A1 (fr) 2004-05-26
US7644850B2 (en) 2010-01-12
US20060266790A1 (en) 2006-11-30
US20040108355A1 (en) 2004-06-10

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