EP1378373B1 - Dispositif pour l'usinage des bords latéraux d'un matériau à imprimer en forme de feuille - Google Patents

Dispositif pour l'usinage des bords latéraux d'un matériau à imprimer en forme de feuille Download PDF

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Publication number
EP1378373B1
EP1378373B1 EP03013340A EP03013340A EP1378373B1 EP 1378373 B1 EP1378373 B1 EP 1378373B1 EP 03013340 A EP03013340 A EP 03013340A EP 03013340 A EP03013340 A EP 03013340A EP 1378373 B1 EP1378373 B1 EP 1378373B1
Authority
EP
European Patent Office
Prior art keywords
cutting
sheet
elements
tool head
notching
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
EP03013340A
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German (de)
English (en)
Other versions
EP1378373A1 (fr
Inventor
Thomas Dera
Helmut Dr. Domes
Frank Grüneberg
Andreas Schweizer
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
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
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1378373A1 publication Critical patent/EP1378373A1/fr
Application granted granted Critical
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Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C5/00—Preparing the edges or backs of leaves or signatures for binding
    • B42C5/04—Preparing the edges or backs of leaves or signatures for binding by notching or roughening

Definitions

  • the invention relates to a device for processing side edges of sheet-shaped substrates, according to the preamble of claim 1, in particular for preparing a perfect binding.
  • the sheet-like substrates that make up the finished book or booklet at the end are first collected and aligned in a stack. This stack of sheet-shaped substrates is clamped so that slipping of the individual sheet-shaped substrates in the stack is possible excluded. Subsequently, one side of the stack of sheet-like substrates is first milled flat and then coated with a suitable adhesive. Suitable adhesives are various hot glues or cold glues, so-called dispersion glues in question. However, the type of adhesive is irrelevant to the present invention.
  • the adhesive usually has only a small contact surface with the sheet-shaped substrate to be fixed, since the adhesive can connect only with a straight side edge of the individual sheet-shaped substrates , This leads to a low pull-out strength of the sheet-like substrates in the finished product.
  • the quality of the perfect binding can be improved by increasing the surface of the side edge and thus the contact surface between the adhesive and the sheet-shaped printing material.
  • a further improvement of the adhesive bond can be achieved by the wetting of the side edge of the sheet-shaped substrate is improved by adhesive.
  • This can be done, for example, by exposing the paper fibers to the side edge of the sheet-like substrate, which ultimately provides for the mechanical anchoring of the sheet-like substrate in the adhesive.
  • This is an important requirement, in particular for coated papers, since even with these only the fiber content contributes to the strength, but the proportion of the coating can make up to half of the material here. Therefore, in many devices for processing side edges of sheet-like substrates in preparation for perfect binding, an additional scoring tool or other roughening tool is used to expose the paper fiber and improve anchoring between paper and adhesive.
  • Such a device is described for example in the Swiss patent CH 30 36 78 disclosed.
  • a first outer ring cutting tools for equalizing a book spine are mounted in an inner ring notching tools are provided for roughening the spine.
  • a passing book block is thereby first leveled by the cutting tools and then provided by the notching tools with arcuate, mutually crossing notches on the back.
  • a cutter disk rotates on a drive shaft, the cutter disk carrying cutting teeth along its circumference to trim the back edge of a stack of paper passed over it. Further, one or more upwardly directed cutting teeth are mounted on the cutter disk so that they can be positioned vertically. As a result, the cutting depth of the upwardly directed cutting teeth can be changed.
  • a rotary driven tool head is provided with circumferentially distributed external tools for machining the block spine, such as milling or trimming, and with tools arranged within the external tools for reworking the block spine, such as notches and roughening.
  • the device provides a stepwise height adjustment between the first tools and the second tools to change the cutting depth of the second tools.
  • brushes are also provided on the tool head, which eliminate the dust produced during the processing of the book block spine and resulting loose paper particles.
  • the device is an apparatus for processing along a direction moving side edges of arranged in a stack of sheet-shaped substrates in a sectional plane, which has a rotationally driven tool head with a fixed axis of rotation, wherein on the tool head substantially circular notch elements for the roughening of the side edges of the sheet-like printing materials are arranged and arranged around the substantially circular notch elements cutting elements for edging sheet-shaped substrates, the axis of rotation relative to the vertical on the cutting plane forms an acute angle ⁇ , so that the cutting elements only on one side of the Tool head come into contact with the side edges of the sheet-shaped substrates.
  • the side of the tool head is, in particular, the side leading in the direction of movement.
  • the cutting elements By virtue of the fact that the cutting elements only come into contact with the side edges of the sheet-like printing substrates on one side, the cutting forces occurring during machining can be reduced, which leads to a higher power of the cutting tool. By reducing the cutting forces fanning the stack of sheet-like substrates during processing can be prevented.
  • the angle ⁇ is set such that the notch elements dip twice in the cutting plane of the sheet-like substrates, the cutting elements, however, only once.
  • the notch elements in two different Aufrautiefen score the side edges of the sheet-shaped substrates The fact that the notch elements indent the second immersion in a lower roughening the side edges, it comes to lower cutting forces.
  • the stack of sheet-like printing materials is slightly fanned out in this area, the lower cutting forces lead to an advantageous dedusting of the cutting plane. Thorough dedusting of the machined side edge of the sheet substrates is important as the paper and dust particles otherwise present on the working surface will adversely affect the wetting of the side edges by adhesives.
  • Another advantage results from the inclination of the axis of rotation, which unavoidable manufacturing and assembly tolerances, which lead to a tumbling motion of the tool head, can be compensated by a sufficiently large choice of the angle ⁇ .
  • the arrangement of notch elements and cutting elements on the same tool head can be very favorably influenced on the roughening depth of the notch elements.
  • the roughness which indicates the penetration of the notch elements above the cutting plane, is an essential factor that goes into the properties of a finished perfect binding.
  • a low roughening depth means that the adhesive applied to the processed side edges of the sheet-like printing materials arranged in the stack can penetrate only slightly laterally into the stack of sheet-shaped printing substrates.
  • a low penetration depth of the adhesive is typically associated with a low pull-out strength of the sheet-form substrates from the stack, but an advantageous impact behavior of the bound stack of sheet-like substrates.
  • the notch depth of the notch elements is infinitely adjustable. This is particularly advantageous to adapt the processing of the side edges of the sheet-shaped substrates to the properties of the stack, z. B. number of sheet-shaped substrates in the stack, type of sheet-shaped substrates, whether and how the sheet-like substrates are printed, especially in the area of the side edge to be processed etc.
  • the stepless adjustability of the notch depth can be achieved, for example, by a stepless adjustability of the angle ⁇ .
  • the notch elements can be arranged on a Kerbring, which is height adjustable by means of a left-hand thread and with a corresponding device for fixing in a desired position with respect to the cutting edge and the cutting plane of the cutting elements.
  • the notch elements are arranged on a notch ring and the cutting elements are arranged on a cutting ring, Kerbring and cutting ring are separately releasably secured to the tool head.
  • the final assembly of the tool head can be facilitated and the entirety of the cutting elements can be easily replaced.
  • the cutting elements are all first fastened to the cutting ring, in order then to be ground together into their final shape. This type makes it possible to bring the cutting edges of all the individual cutting elements on the cutting ring with very small tolerances in the same cutting plane. The same applies to the production of a Kerbringes and the corresponding notch elements.
  • notch elements on the cutting ring between the individual cutting elements or at least some cutting elements is also within the scope of the device according to the invention.
  • a larger radius of the circular arrangement of the notch elements can be achieved by the displacement of the notch elements between the cutting elements, so that a larger number of notch elements can find space on the tool head.
  • the speed with which the notch elements in the milled side of the stack of sheet-shaped substrates increased by the larger radius, which leads to an improvement in the load of the notch elements would be in addition.
  • At least one notch element is mounted on the side facing away from the sheet-shaped substrates of the Kerbringes. This is particularly advantageous if the installation of the turned Kerbringes in the tool head can achieve a second preferred notch depth. In this way, an adaptation of the roughness depth between two preferred roughness depths can be achieved in a simple manner.
  • a setting of the roughening depth by placing the Kerbringes underlay. It is, depending on the desired roughness, a suitable washer between Kerbring and Tool head inserted.
  • This underlay can optionally be used in addition to a stepless height adjustment, in combination with a stepless height adjustment or instead of a stepless height adjustment of the roughening depth of the notch elements. It is also within the scope of the invention that the desired Aufrautiefe is achieved by combining a plurality of washers between Kerbring and tool head. It will be apparent to those skilled in the art that other suitable underlaying means may be used instead of washers.
  • the cutting elements are soldered to the cutting ring, in particular before the cutting elements are ground to their final shape.
  • a cleaning brush is integrated on the tool head.
  • the cleaning brush is mounted on the surface of the tool head in the area that lies within the arrangement of the cutting elements, and serves to improve the dedusting of the machined surface of the stack of sheet-like substrates.
  • a negative pressure in the region of the tool head is specifically generated by the rotation of the tool head, which sucks the dust and paper particles formed during processing.
  • This can be achieved, for example, by providing a fan spiral in the center of the milling disk, which generates a flow of air away from the machined surface of the stack of sheet-like substrates, comparable to the operating principle of a hair dryer.
  • an advantageous extraction can be achieved directly at the point of origin of the dust and paper particles, which in turn promotes the dedusting and thus the improvement the wetting of the side edges of the sheet-like substrates by the adhesive improves the quality of the perfect binding.
  • the tool head 20 consists of a tool carrier 21, on the surface of a cutting ring 30 and a Kerbring 40 are attached.
  • the tool head 20 is connected to a shaft 10 (see FIG. FIG. 4 ) appropriate.
  • the shaft 10 is rotationally driven.
  • generally known and required for operating the device Antriebs Operationss- and / or fastening means and cams and controls are shown only schematically or will be described only in general terms.
  • the tool head 20 rotates when processing a stack of sheet-shaped substrates to those with the reference numeral 12 in FIG. 2 characterized axis of rotation in a direction indicated in the figures by the numeral 14 arrow.
  • the cutting ring 30 on the periphery on a number of cutting elements 32.
  • the cutting elements 32 are in the direction of rotation 14 forward inclined to the cutting ring 30 attached.
  • the cutting elements 32 have cutting segments 34 which cause the section through the sheet-like substrates 1.
  • the cutting segments are the outer edges of the cutting elements 32 leading in the direction of movement 14.
  • the cut through the sheet-shaped printing stock essentially takes place at the cutting corner 37, which represents the upper end of the cutting segments 34.
  • the cutting segment 34 has a typical undercut.
  • the cutting elements 32 may be attached to the cutting rings 30 releasably secured on the one hand, for example by screwing, on the other hand, the cutting elements 32 may be attached to the cutting rings 30 inextricably, z. B. by soldering.
  • a notch ring 40 is mounted on the surface of the carrier 21, are attached to the notch elements 36.
  • the notch elements 36 may likewise be diamond-ground carbide flakes or ground steel flakes which have been subsequently hardened, for. B. by ion implantation.
  • the notch elements 36 likewise have an upper corner 39, which decisively determines the roughening depth of the device according to the invention.
  • the roughening depth of the notch elements 36 or the upper corner 39 of the notch elements 36 results from the height offset between the upper corner 39 of the notch elements 36 and the upper corner 37 of the cutting segments 34.
  • the cutting elements and the notching elements are arranged substantially on a circle. This is not necessarily so.
  • the notch elements 36 may be offset in the radial direction to achieve alternative notching patterns in the milled side of the stack of sheet-like substrates 1. It is also conceivable, two or more Kerbringe 40 on provide the tool head 20, which also have, for example, only a smaller number of notch elements 36 per Kerbring 40.
  • the cutting ring 30 and the Kerbring 40 with individual drives and cutting ring 30 and Kerbring 40 rotate at a relative speed to each other, in particular in opposite directions.
  • the opposite rotation of Kerbring 30 and cutting ring 40 can be improved by the counter forces occurring trimming or notching.
  • the fanning stack of sheet-shaped substrates 1 is reduced by the opposing forces.
  • this height offset between the upper corner 39 of the notch elements 36 and the upper corner 37 of the cutting segments 34 can be influenced by shims 60 between the Kerbring 40 and the tool carrier 21 are inserted. Since in the illustrated embodiment of the device according to the invention, as in FIG. 2 it can be seen that the Kerbring 40 lies on the cutting ring 30, which in turn rests on the support 21, the washers 60 between the Kerbring 40 and the tool carrier 21 between the Kerbring 40 and the cutting ring 30 are underlaid to change the Aufrautiefe to reach. Washers 60 may further be inserted between the tool carrier 21 and the cutting ring 30 to influence the cutting plane 9.
  • FIG. 3 the position of the upper corners 37 of the cutting segments 34, and upper corners 39 of the notching elements 36 is shown by the influence of a wobbling movement of the tool head 20. From the left, a stack of sheet-shaped substrates 1 is moved with a side edge 3 along an arrow marked with the reference numeral 5 to the right. The Y position 0 indicates the desired cutting plane 9.
  • the dots marked with the diamonds which do not fall under the present invention, give the position from left to right of the leading top corner 37 of a cutting segment 34 of a first cutting element 32, the top corner 39 of a first notching element 36, which on the tool head 20 opposite top corner 39 of a second notching element and the uppermost corner 37 of a cutting segment 34 of one on the Tool head 20 opposite second cutting element 32 at.
  • the uppermost corner 37 of the cutting segment 34 of the first cutting element 32 lies just below the cutting plane 9, the uppermost corner 39 of the first notching element 36 just above the cutting plane 9, whereby a Aufrautiefe of 200 microns is achieved.
  • the top corner 39 of the second notching element 36 which is arranged on the opposite side of the tool head 20, would lie far below the cutting plane 9 in a tool head 20 without a rash, as would the top corner 37 of a cutting segment 34 of a second cutting element 32 far below Sectioning plane 9 and the actual cutting plane, which is at the level of the uppermost corner 37 of the cutting segment 34 of the first cutting element 32 lie. In this case, it is thus, contrary to the present invention, not provided that the uppermost corners 39 of the first and the second notch elements 36 two times in the cutting plane 9.
  • the points marked with the squares indicate the position of the top corners 37, 39 when the tool head 20 takes into account a maximum value of the runout of the tool head 20 typically caused by manufacturing and assembly tolerances, and the tool head 20 is in one of the diamonds marked position is rotated by 180 ° position. In this position, which has been rotated by 180 °, the position of the first cutting element 32 or first notching element 36, apart from the radial runout, has interchanged with the position of the second cutting elements 32 or notching elements 36. As in FIG.
  • the original inclination of the rotation axis 12 with respect to the vertical 7 on the cutting plane 9 is selected such that even with the maximum occurring assembly or manufacturing tolerances, an arrangement of the uppermost corners 37 of the cutting segments 34 of the cutting elements 32 results, the leading upper corner 37 still creates an actual cutting plane that is above the position of the trailing top corner 37. It should be noted that it is the change between the 0 ° position and the 180 ° position is not a change in the angle ⁇ , but only the change in height due to the wobbling movement of the tool head 20 about the shaft 10 through which not completely perpendicular attachment of the tool head 20 on the shaft 10 is caused.
  • ⁇ see FIG. FIG. 4
  • leading notch elements 36 and trailing notching elements 36 to a roughening of the side edges 3 of the sheet-like substrates 1 should lead, or whether only the leading upper corner 39 of the notch elements 36th to lead to a notch in the side edge 3.
  • it can be ensured that the trailing cut edge is below the leading cut edge, so that never roughened side edges 3 can be removed by the trailing cutting elements 32.
  • FIG. 4 which does not fall under the present invention, once again the basic operating principle of the device 100 according to the invention is shown.
  • a stack of sheet-like substrates 1 with a common side edge 3 is transported onto a tool head 20 along a direction of movement designated by the reference numeral 5.
  • the stack of sheet-like printing materials 1 is prevented by a pair of pliers 50 at the fanning.
  • the pliers 50 further contributes to the fact that no slipping of the sheet-shaped substrates 1 in the stack arises due to the shear forces occurring.
  • the tool head 20 with cutting elements 32 and notching elements 36 is located in the direction of movement of the sheet-like substrates 1.
  • the tool head 20 rotates about a rotation axis 12, wherein the rotation axis 12 forms an angle ⁇ to the vertical 7 on the cutting plane 9.
  • Cutting elements 32 come in the sectional plane 9 with the side edge 3 of the sheet-shaped substrates 1 in contact and mill while the sheet-shaped substrates 1 to the cutting plane 9 from.
  • the upper corners 39 of the notch elements 36 are arranged on the tool head 20, so that at least the leading corners 39 of the Notch elements 36 protrude over the cutting plane 9, and thereby the machined side of the stack of sheet-shaped printing materials 1 roughened to a desired degree.
  • the device 100 finds particular application in Kleinklebebindern or other devices for the preparation of side edges of sheet-shaped substrates 1 in front of a side edge gluing, but in principle can also be used for processing other surfaces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Making Paper Articles (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (9)

  1. Dispositif pour l'usinage sur un plan de coupe (9) de bords latéraux (3) déplacés dans une direction de déplacement (5) de matériaux à imprimer en forme de feuilles (1) et disposés en pile, avec une tête d'outil (20) entraînée en rotation avec un axe de rotation fixe (12), des éléments en crans de forme sensiblement circulaire (36) étant disposés sur la tête d'outil (20) pour la taille des bords latéraux (3) des matériaux à imprimer en forme de feuilles (1), et des éléments de coupe (32) pour la coupe des bords des matériaux à imprimer en forme de feuilles étant disposés autour des éléments en crans de forme sensiblement circulaire (36), caractérisé en ce que l'axe de rotation (12) forme un angle aigu (α) par rapport à la verticale (7) sur le plan de coupe (9), de telle sorte que les éléments de coupe (32) n'entrent en contact avec les bords latéraux (3) des matériaux à imprimer en forme de feuilles (1) que sur un côté de la tête d'outil (20), ledit angle (α) étant réglé de telle sorte que les éléments en crans (36) plongent deux fois sur le plan de coupe (9) des matériaux à imprimer en forme de feuilles (1), contre une fois pour les éléments de coupe (32).
  2. Dispositif selon la revendication 1, caractérisé en ce que la profondeur de taille des éléments en crans (36) est réglable de manière continue.
  3. Dispositif selon la revendication 1, caractérisé en ce que les éléments en crans (36) sont disposés sur une bague à crans (40) et que les éléments de coupe (32) sont disposés sur une bague de coupe (30), lesdites bague à crans (40) et bague de coupe (30) étant fixées de manière amovible sur la tête d'outil (20).
  4. Dispositif selon la revendication 3, caractérisé en ce qu'au moins un élément en cran (36') est disposé sur le côté de la bague à crans (40) opposé aux matériaux à imprimer en forme de feuilles (1).
  5. Dispositif selon la revendication 3, caractérisé en ce qu'un réglage de la profondeur de taille est effectué par intercalation de la bague à crans (40).
  6. Dispositif selon la revendication 3, caractérisé en ce que les éléments de coupe (32) sont soudés contre la bague de coupe (30).
  7. Dispositif selon la revendication 1, caractérisé en ce que l'angle (α) est réglable, et peut être notamment adapté en fonction des caractéristiques matérielles des matériaux à imprimer en forme de feuilles.
  8. Dispositif selon la revendication 1, caractérisé en ce qu'une brosse de nettoyage est intégrée à la tête d'outil (20).
  9. Dispositif selon la revendication 1, caractérisé en ce qu'une dépression est précisément obtenue par rotation de la tête d'outil (20), laquelle aspire les particules de poussière et de papier formées pendant l'usinage.
EP03013340A 2002-07-04 2003-06-16 Dispositif pour l'usinage des bords latéraux d'un matériau à imprimer en forme de feuille Expired - Lifetime EP1378373B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10230054A DE10230054A1 (de) 2002-07-04 2002-07-04 Vorrichtung zum Bearbeiten von Seitenkanten von blattförmigen Bedruckstoffen
DE10230054 2002-07-04

Publications (2)

Publication Number Publication Date
EP1378373A1 EP1378373A1 (fr) 2004-01-07
EP1378373B1 true EP1378373B1 (fr) 2008-04-02

Family

ID=29719461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03013340A Expired - Lifetime EP1378373B1 (fr) 2002-07-04 2003-06-16 Dispositif pour l'usinage des bords latéraux d'un matériau à imprimer en forme de feuille

Country Status (3)

Country Link
EP (1) EP1378373B1 (fr)
AT (1) ATE391023T1 (fr)
DE (2) DE10230054A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10354217A1 (de) * 2003-11-20 2005-06-23 Kolbus Gmbh & Co. Kg Vorrichtung zum Kerben der Rücken von Buchblocks
JP4326543B2 (ja) * 2006-04-27 2009-09-09 ホリゾン・インターナショナル株式会社 無線綴製本処理装置
DE102011105033A1 (de) * 2011-06-20 2012-12-20 Heidelberger Druckmaschinen Ag Vorrichtung zur Rückenbearbeitung von Buchblocks
ITUA20161988A1 (it) 2016-03-24 2017-09-24 K G S S R L Unipersonale Utensile rotativo multifunzionale per macchine brossuratrici

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH303678A (de) * 1952-07-30 1954-12-15 Mueller Hans Verfahren und Vorrichtung zum fadenlosen Einbinden von Büchern.
DE1931909A1 (de) * 1968-06-26 1970-01-08 Ass Elect Ind Vorrichtung zur Erwaermung von Metallkoerpern
DE1929901C3 (de) * 1969-06-12 1981-05-07 The Sulby Engineering Development Co. Ltd., Surrey Vorrichtung zur Vorbereitung von Buchblockrücken
US3758928A (en) * 1972-07-03 1973-09-18 Cooper Corp Tool for use in book binding
SU650731A1 (ru) * 1977-04-28 1979-03-05 Natapov Leonid M Способ фрезеровани торцовой фрезой
US4408780A (en) * 1981-04-22 1983-10-11 R. R. Donnelley & Sons Company Bound book and method of making such books
CH676344A5 (en) * 1988-10-13 1991-01-15 Grapha Holding Ag Book-back machining equipment - has driven grooving tools rotating in rotary support which contains driving shaft actuating radial shafts on which tools are mounted
US6077016A (en) * 1996-04-04 2000-06-20 Grapha-Holding Ag Method and apparatus for roughening a book block spine formed of compressed printed sheets
DE19650851A1 (de) * 1996-11-27 1998-05-28 B P S Buessenschuett Projekte Vorrichtung zum Bearbeiten des Rückens von zu bindenden Blattstapeln
DE10022836B4 (de) * 2000-05-10 2008-07-10 Kolbus Gmbh & Co. Kg Vorrichtung zur Rückenbearbeitung von Buchblocks

Also Published As

Publication number Publication date
DE50309518D1 (de) 2008-05-15
ATE391023T1 (de) 2008-04-15
EP1378373A1 (fr) 2004-01-07
DE10230054A1 (de) 2004-01-22

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