EP0358019B1 - Method and apparatus for manufacturing book binding covers and the like - Google Patents

Method and apparatus for manufacturing book binding covers and the like Download PDF

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Publication number
EP0358019B1
EP0358019B1 EP89115324A EP89115324A EP0358019B1 EP 0358019 B1 EP0358019 B1 EP 0358019B1 EP 89115324 A EP89115324 A EP 89115324A EP 89115324 A EP89115324 A EP 89115324A EP 0358019 B1 EP0358019 B1 EP 0358019B1
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EP
European Patent Office
Prior art keywords
sheet
hot
melt adhesive
strip
bending edge
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
EP89115324A
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German (de)
French (fr)
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EP0358019A3 (en
EP0358019A2 (en
Inventor
Peter Lázár
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Individual
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Individual
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Publication date
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Priority to AT89115324T priority Critical patent/ATE85554T1/en
Publication of EP0358019A2 publication Critical patent/EP0358019A2/en
Publication of EP0358019A3 publication Critical patent/EP0358019A3/en
Application granted granted Critical
Publication of EP0358019B1 publication Critical patent/EP0358019B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42C—BOOKBINDING
    • B42C7/00—Manufacturing bookbinding cases or covers of books or loose-leaf binders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S412/00—Bookbinding: process and apparatus
    • Y10S412/902—Heating and pressing

Definitions

  • Such a method and such a device are known from DE-OS 30 10 642.
  • a hot-melt adhesive strip previously cut from rolls or sheets is placed on a base which is delimited by two bending edges which stand up at a suitable distance from one another.
  • the bending edges are designed as bending strips and at the same time serve as alignment means for the hot-melt adhesive strip.
  • a sheet of material is then placed over it in such a way that the area provided for the formation of the back cover comes to lie above the hot-melt adhesive strip.
  • the material sheet is then pressed against the bending strips and the hot-melt adhesive strip with the aid of a press ram or a press roller. Not only is the connection between the sheet of material and the hot-melt adhesive strip established, but at the same time the folds for bending the cover with respect to the back of the cover are also formed with the aid of the bending strips.
  • the hot-melt adhesive strip tends to stick to the base and / or to the bending strips. This makes it difficult to lift the sheet of material out after pressing. In extreme cases, the hot-melt adhesive strip gets caught in the device. There is also a great risk that the hot-melt adhesive strip will shift when the sheet of material is removed, since it is still pasty. Because of the press ram, the material sheet can only be removed at an angle, which favors moving the hot-melt adhesive strip.
  • Another disadvantage of this device is that the bending strips simultaneously form the lateral boundary of the base for the hot-melt adhesive strip. In this way, the fold lines are formed directly next to the hot-melt adhesive strip. However, this is often not desirable.
  • the object of the invention is to provide a method for the production of covers which works more smoothly and therefore ensures a better quality of the covers and moreover allows greater freedom in the arrangement of the fold lines. Another object is to provide a device which allows the method to be carried out.
  • the connection of hot-melt adhesive strips and material sheet on the one hand and the formation of the fold line on the other hand are produced by two successive pressing processes, the material sheet being lifted together with the hot-melt adhesive strip before the second pressing process, namely by those that are initially outside the pressing area Bending edges which are brought into the position (s) provided for the formation of the fold lines between the two pressing processes and at the same time raise or raise the material sheet.
  • This process in contrast to the previously known process, is carried out in two stages, it has considerable advantages which more than compensate for the disadvantage of the two-stage process.
  • the material sheet is lifted by pushing in the bending edge (s) much more evenly and reproducibly than is possible by hand. Accordingly, the hot melt adhesive strip is much easier to remove.
  • Another The advantage is that the bending edge (s) can be positioned as desired when pushed under the sheet of material, ie you are largely free in the arrangement of the fold lines. They can be provided where they are particularly cheap for folding the cover.
  • the method according to the invention also opens up the possibility of adapting the press pressure in the two pressing processes according to the respective requirements. Only a small amount of pressure is required to connect the hot-melt adhesive strips and the sheet of material. When such a pressure is applied, the tendency to adhere is further reduced, so that the lifting of the material sheet with the aid of the bending edge (s) takes place without any problems. A correspondingly higher pressure can then be provided for the formation of the fold lines with the aid of the second pressing process, which ensures optimum fold line formation. Since the bending edge or the bending edges retract after the second pressing process, the hot-melt adhesive strip is no longer framed by this or these and the sheet of material can therefore be removed easily and without the risk of the hot-melt adhesive strip moving. A high quality cover is obtained, which guarantees that this quality is reproducible.
  • the bending edge (s) initially support the material sheet outside the pressing area until it is or are moved into the position (s) provided for the formation of the fold line (s) . In this way, moving the bending edge (s) into the position provided for the formation of the fold line (s) does not prepare Problems.
  • a pressure control device for reducing the pressing pressure for connecting the hot-melt adhesive strip to the material sheet and for increasing the pressing pressure for the formation of the fold line (s) is provided for the device.
  • a first press die for the connection between the hot-melt adhesive strip and the sheet of material and a second press die for the formation of the fold lines are provided, which can be moved alternately into the position relative to the base, the second press die having grooves for the fold lines.
  • the invention thus opens up the possibility of providing various press rams for attaching the hot-melt adhesive strip on the one hand and for forming the fold lines on the other hand, which are optimally adapted to the respective requirements.
  • the first press die can be provided with a heating device alone and the second press die can have a hard, modeled press surface.
  • the bending edge (s) also form a support for the material sheet in the position outside the area of influence of the press ram. This means that the bending edge (s) does not extend or extend so far that they are in its or their end position outside the material sheet.
  • the movement of the bending edge (s) when changing their location can be chosen relatively freely. However, it is preferable to arrange the bending edge (s) on a sliding element that is movable perpendicular to the course of the bending edge (s). In this way, the movement is straight and translational, so that, for example, double-acting telescopic cylinders can be used for the movement.
  • the aligning means for the hot-melt adhesive strip are expediently two guide walls intended for contact on the longitudinal sides thereof, at least one of which can be displaced relative to the other in order to change the distance.
  • the alignment means can also be quickly adapted to the respective width of the hot-melt adhesive strip.
  • the movable guide wall is part of a displaceably guided guide device on which the alignment device is arranged for the material sheet. The result of this is that when the width of the hot-melt adhesive strip is changed, the alignment device is also automatically adapted in accordance with the material sheet then used.
  • the associated bending edge on the guide device - if necessary together with the telescopic cylinder - is movably mounted. If the width of the hot-melt adhesive strip is changed, there is also an automatic adjustment with regard to the arrangement of the fold line, ie the distance between the side wall of the hot-melt adhesive strip and the fold line remains the same, without the need for special adjustment measures.
  • a double-acting telescopic cylinder can also be provided for the displacement of the guide wall. In operation, it should be pre-tensioned in such a way that the movable guide wall is pressed in the direction of the opposite guide wall and bears against a stop. A special attachment of the movable guide wall can then be omitted. For example, a bar forming the base for the hot-melt adhesive strip can be used as a stop.
  • suction bores are provided in at least one support surface for holding the material sheet on the device and are connected to a vacuum source.
  • the material sheet can be fixed during the pressing processes and, if necessary, also during the movement of the bending edge (s) by applying a corresponding vacuum.
  • the invention provides that the device is displaceably mounted on a base frame without the press ram and that a suction lifting device is provided in the movement area of the device next to the press ram for lifting the material sheet after the second pressing process.
  • a suction lifting device is provided in the movement area of the device next to the press ram for lifting the material sheet after the second pressing process.
  • the device (1) shown schematically in FIG. (1) has a base plate (2) which is provided with a step (3) by means of which two upper sides (4, 5) separate from one another and located at different heights are created.
  • a guide plate (6) is mounted displaceably in the directions of the double arrow A on the lower side (5).
  • a double-acting telescopic cylinder (7) is provided - which is not shown in detail - which is connected to the rear of the guide plate (6).
  • the thickness of the guide plate (6) corresponds to the difference in height between the two upper sides (4, 5).
  • the step (3) and the opposite end face of the guide plate (6) form guide walls (8, 9) and delimit a section (10) of the lower upper side (5), the width of which is determined by the respective position of the guide plate (6).
  • Guide walls (8, 9) and section (10) form an upwardly open groove (11).
  • An angle profile (12) is mounted on the guide plate (6) in an area removed from the groove (11).
  • the attachment is done by means of two screws (13, 14) which sit in elongated holes (15, 16), each of which extends in the direction of displacement of the guide plate (6).
  • the angle profile (12) can be adjusted relative to the guide plate (6), ie the distance to the groove (11) can be increased or decreased.
  • a slide profile (17) is slidably mounted, in the direction of the groove (11) or away from it.
  • the slide profile (17) has a leg (18) directed downwards, which is connected to a double-acting telescopic cylinder (19).
  • This telescopic cylinder (19) is attached to the base plate (2) and can move the slide profile (17) back and forth in the directions mentioned.
  • a correspondingly designed slide profile (20) is mounted on the guide plate (6) and can also be moved in the direction of the groove (11) or away from it.
  • the slide profile (20) also has a leg (21) directed downwards, which is connected to a further, double-acting telescopic cylinder (22).
  • This telescopic cylinder (22) - which is not shown here - is attached to the guide plate (6) so that it moves with the guide plate (6) when it is displaced.
  • upstanding bending webs (23, 24) extending over their width are arranged, namely at a distance from the opposite edges of the slide profiles (17, 20).
  • a press ram (25) which extends over the width of the base plate (2). It is suspended from a double-acting telescopic cylinder (26) and can be moved vertically up and down with its help.
  • the base plate (2) is on a roller (27, 28, 29) Guide track (30) slidably mounted in the directions of the double arrow B. Only the ram (25) and the telescopic cylinder (26) remain stationary. By means of a drive, not shown here, the base plate (2) can be moved towards a lifting device (31) to such an extent that its pneumatic suction plate (32) hangs somewhat above section (10) in the position shown. The suction plate (32) can then be lowered onto a finished material sheet by pivoting a suction arm (33), pick it up and place it in a collection basket after the base plate (2) has been moved back. In this way, the removal of the sheet of material from the device (1) is automated.
  • a hot-melt adhesive strip (34) is inserted into the groove (11), that is, between the guide walls (8, 9).
  • the depth of the groove (11) or the height of the guide walls (8, 9) is dimensioned such that the hot-melt adhesive strip (34) a little out of the groove (11) and thus over that of the upper side (4) of the base plate (2 ) and the top of the guide plate (6) formed protrudes.
  • the slide profiles (17, 20) are in the most extended position, in which they are at the greatest distance from the groove (11).
  • a suitable material sheet (35) is placed on the slide profiles (17, 20). Its right edge in this view lies against the angle profile (12).
  • the position of the angle profile (12) is set so that the area of the material sheet (35) provided on the cover spine comes to lie exactly above the hot-melt adhesive strip (34) when the Material sheet (35) on the angle profile (12). This gives the situation shown in FIG. (2).
  • the press ram (25) is now lowered, as a result of which the material sheet (35) is pressed downward against the hot-melt adhesive strip (34) in the central region. Since the press ram (25) is heated, the hot-melt adhesive strip (34) is made adhesive by heating in the area of the contact surface to the material sheet (35), so that the hot-melt adhesive strip (34) adheres to the material sheet (35).
  • the pressure to be applied in this first pressing process is relatively low.
  • the press ram (25) is then raised.
  • the slide profiles (17, 20) are moved synchronously in the direction of the groove (11), by means of a corresponding drive by means of the telescopic cylinders (19, 22).
  • the material sheet (35) is also raised in the area of action of the press ram (25) and the hot-melt adhesive strip (34) is thus lifted off the section (10).
  • the movement of the slide profiles (17, 20) is carried out until the bending webs (23, 24) projecting from them lie in a position below the fold lines to be formed in the material sheet (35).
  • These positions can be specified, for example, by stops on the base plate (2) or on the guide plate (6), it being expedient that these stops can be adjusted in the directions of movement of the slide profiles (17, 20) by the distance of the fold lines in With regard to the hot-melt adhesive strip (34) to be able to choose freely according to the respective requirements.
  • the press ram (25) is lowered again to carry out the second pressing process, as shown in FIG. (5).
  • the pressure applied is now considerably greater than in the first pressing process, so that fold lines are formed in the material sheet (35) via the bending webs (23, 24).
  • the press ram (25) is raised again and the slide profiles (17, 20) move back into their initial positions shown in FIG. 2.
  • the material sheet (35) is then completed to form a cover.
  • the sheet of material (35) can then be removed from the device (1) without any problems, this preferably not being done manually, but automatically with the aid of the lifting device (31) shown in FIG. (1) after the base plate (2) has been moved in the direction of this lifting device (31). After removing the material sheet (35), the base plate (2) is moved back into the starting position.
  • the guide plate (6) is held in the direction of the guide wall (8) under prestress by applying appropriate pressure to the telescopic cylinder (7).
  • a stop in the form of a bar (36) placed in the groove (11) on the section (10) then prevents the guide walls (8, 9) from moving further together, thus keeping the guide plate (6) at a distance from the guide wall (8) .
  • the width of the strip (36) corresponds essentially to the width of the hot-melt adhesive strip (34) used and can be adapted to this.
  • the guide plate (6) When using a hot melt adhesive strip (34) of a different width, for example a wider hot melt adhesive strip, the guide plate (6) is retracted to widen the groove (11) and one appropriately adapted bar (36) inserted as a stop for the guide plate (6) in the groove (11). Otherwise, it is not necessary to make changes, provided the distance of the fold lines in relation to the side walls of the hot-melt adhesive strip (34) is not to be changed.
  • the guide plate (6) moves back, the relative position of the slide profile (20) and that of the angle profile (12) is changed at the same time, since both are connected to the guide plate (6).
  • the device (1) can thus be adapted very easily and quickly to differently wide hot melt adhesive strips (34) and correspondingly adapted formats of the material sheet (35).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Making Paper Articles (AREA)
  • Basic Packing Technique (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

The present invention is directed to a method and apparatus for making book bindings. In one of the preferred embodiments the method includes the steps of initially aligning a hot-melt adhesive strip on a base; aligning a sheet of material relative to the hot-melt adhesive strip; pressing a first time the sheet of material onto a strip of hot-melt adhesive for bonding the strip of hot-melt adhesive to the sheet of material without forming folding lines therein; pressing a second time the sheet of material against at least one associated bending edge adjacent at least one longitudinal side of the hot-melt adhesive strip thereby forming at least one fold line in the sheet of material, maintaining the sheet of material in the initially aligned position during the first and second pressing steps; and lifting the sheet of material following the first pressing step and prior to the second pressing step by moving the at least one associated bending edge to a position below an anticipated position of the at least one fold line thereby lifting the hot-melt adhesive off the base.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Einbänden oder dergleichen aus einem Materialbogen und einem Schmelzkleberstreifen mit folgenden Merkmalen:

  • a) der Schmelzkleberstreifen wird auf einer Unterlage ausgerichtet;
  • b) auf den Schmelzkleberstreifen wird der Materialbogen - gegenüber jenem ausgerichtet - aufgelegt;
  • c) zur Verbindung des Schmelzkleberstreifens mit dem Materialbogen wird der Materialbogen auf den Schmelzkleberstreifen aufgepreßt;
  • d) benachbart zu wenigstens einer Längsseite des Schmelzkleberstreifens wird in den Materialbogen durch Pressen gegen jeweils eine Biegekante zumindest eine Falzlinie eingeformt.
The invention relates to a method for producing covers or the like from a sheet of material and a hot-melt adhesive strip with the following features:
  • a) the hot melt adhesive strip is aligned on a base;
  • b) the sheet of material - aligned with it - is placed on the hot melt adhesive strip;
  • c) to connect the hot-melt adhesive strip with the material sheet, the material sheet is pressed onto the hot-melt adhesive strip;
  • d) adjacent to at least one long side of the hot-melt adhesive strip, at least one fold line is formed in the material sheet by pressing against a respective bending edge.

Die Erfindung betrifft des weiteren eine Vorrichtung zur Herstellung eines Einbandes oder dergleichen mit folgenden Merkmalen:

  • a) die Vorrichtung weist eine Unterlage mit Ausrichtmitteln für einen Schmelzkleberstreifen auf;
  • b) sie hat ferner eine Ausrichteinrichtung zum Ausrichten eines Materialbogens in Bezug auf die Unterlage;
  • c) es ist zumindest eine Biegekante zur Einformung einer Falzlinie in den Materialbogen längs des Schmelzkleberstreifens vorgesehen;
  • d) der Unterlage gegenüber ist ein Preßstempel zum Andrücken des Materialbogens in Richtung auf die Unterlage vorgesehen.
The invention further relates to a device for producing a cover or the like with the following features:
  • a) the device has a base with alignment means for a hot-melt adhesive strip;
  • b) it also has an alignment device for aligning a sheet of material with respect to the base;
  • c) at least one bending edge is provided for forming a fold line in the material sheet along the hot-melt adhesive strip;
  • d) the base opposite a press ram is provided for pressing the material sheet in the direction of the base.

Ein solches Verfahren und eine solche Vorrichtung sind aus der DE-OS 30 10 642 bekannt. Bei diesem Verfahren wird ein zuvor von Rollen oder aus Blättern zugeschnittener Schmelzkleberstreifen auf eine Unterlage gelegt, die von zwei in passendem Abstand zueinander hochstehenden Biegekanten begrenzt wird. Die Biegekanten sind als Biegeleisten ausgebildet und dienen gleichzeitig als Ausrichtmittel für den Schmelzkleberstreifen. Anschließend wird ein Materialbogen derart darübergelegt, daß der für die Bildung des Einbandrückens vorgesehene Bereich oberhalb des Schmelzkleberstreifens zu liegen kommt. Der Materialbogen wird dann mit Hilfe eines Preßstempels oder einer Preßrolle gegen die Biegeleisten und den Schmelzkleberstreifen gedrückt. Dabei wird nicht nur die Verbindung zwischen Materialbogen und Schmelzkleberstreifen hergestellt, sondern werden gleichzeitig auch mit Hilfe der Biegeleisten die Falzen zum Umbiegen der Einbanddeckel gegenüber dem Einbandrücken gebildet.Such a method and such a device are known from DE-OS 30 10 642. In this method, a hot-melt adhesive strip previously cut from rolls or sheets is placed on a base which is delimited by two bending edges which stand up at a suitable distance from one another. The bending edges are designed as bending strips and at the same time serve as alignment means for the hot-melt adhesive strip. A sheet of material is then placed over it in such a way that the area provided for the formation of the back cover comes to lie above the hot-melt adhesive strip. The material sheet is then pressed against the bending strips and the hot-melt adhesive strip with the aid of a press ram or a press roller. Not only is the connection between the sheet of material and the hot-melt adhesive strip established, but at the same time the folds for bending the cover with respect to the back of the cover are also formed with the aid of the bending strips.

Dieses Verfahren hat erhebliche Nachteile. Zur gleichzeitigen Befestigung des Schmelzkleberstreifens und der Ausbildung der Falzlinien ist ein relativ hoher Druck erforderlich, der mit dem Preßstempel ausgeübt werden muß.This process has significant disadvantages. For the simultaneous attachment of the hot-melt adhesive strip and the formation of the fold lines, a relatively high pressure is required, which must be exerted with the press ram.

Da in der Regel zugleich eine Hitzeeinwirkung erfolgt, neigt der Schmelzkleberstreifen zum Verkleben an der Unterlage und/oder an den Biegeleisten. Dies erschwert das Herausheben des Materialbogens nach dem Verpressen. Im Extremfall bleibt der Schmelzkleberstreifen in der Vorrichtung hängen. Die Gefahr ist auch groß, daß sich der Schmelzkleberstreifen beim Herausnehmen des Materialbogens verschiebt, da er dann noch pastös ist. Wegen des Preßstempels kann der Materialbogen auch nur schräg herausgenommen werden, was ein Verschieben des Schmelzkleberstreifens begünstigt.Since heat is usually applied at the same time, the hot-melt adhesive strip tends to stick to the base and / or to the bending strips. This makes it difficult to lift the sheet of material out after pressing. In extreme cases, the hot-melt adhesive strip gets caught in the device. There is also a great risk that the hot-melt adhesive strip will shift when the sheet of material is removed, since it is still pasty. Because of the press ram, the material sheet can only be removed at an angle, which favors moving the hot-melt adhesive strip.

Ein weiterer Nachteil dieser Vorrichtung besteht darin, daß die Biegeleisten gleichzeitig die seitliche Begrenzung der Unterlage für den Schmelzkleberstreifen bilden. Auf diese Weise werden die Falzlinien unmittelbar neben dem Schmelzkleberstreifen eingeformt. Dies ist jedoch häufig nicht erwünscht.Another disadvantage of this device is that the bending strips simultaneously form the lateral boundary of the base for the hot-melt adhesive strip. In this way, the fold lines are formed directly next to the hot-melt adhesive strip. However, this is often not desirable.

Ausgehend von dem Verfahren und der Vorrichtung der eingangs genannten Art liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zur Herstellung von Einbänden bereitzustellen, das strörungsfreier arbeitet und deshalb eine bessere Qualität der Einbände gewährleistet und zudem eine größere Freiheit bei der Anordnung der Falzlinien läßt. Eine weitere Aufgabe besteht in der Bereitstellung einer die Durchführung des Verfahrens erlaubenden Vorrichtung.On the basis of the method and the device of the type mentioned at the outset, the object of the invention is to provide a method for the production of covers which works more smoothly and therefore ensures a better quality of the covers and moreover allows greater freedom in the arrangement of the fold lines. Another object is to provide a device which allows the method to be carried out.

Diese Aufgabe wird erfindungsgemäß durch ein Verfahren mit folgenden Merkmalen gelöst:

  • e) die Falzlinie(n) wird bzw. werden erst nach der Verbindung des Schmelzkleberstreifens mit dem Materialbogen eingeformt, indem
    • aa) die Biegekante bzw. die Biegekanten nach Beendigung des ersten Preßvorgangs so weit unter den Materialbogen geschoben wird bzw. werden, bis sie jeweils in einer Position unterhalb der vorgesehen Falzlinie steht bzw. stehen;
    • bb) hierdurch der Materialbogen so weit angehoben wird, bis der Schmelzkleberstreifen von der Unterlage abgehoben ist;
    • cc) der Materialbogen dann in einem zweiten Preßvorgang gegen die Biegekante(n) gepreßt wird.
According to the invention, this object is achieved by a method having the following features:
  • e) the fold line (s) will be after the connection of the hot melt adhesive strip with the Material sheet molded in by
    • aa) the bending edge or the bending edges are pushed so far under the sheet of material after the end of the first pressing process until they stand or stand in a position below the intended folding line;
    • bb) this raises the sheet of material until the hot-melt adhesive strip is lifted off the base;
    • cc) the material sheet is then pressed against the bending edge (s) in a second pressing operation.

Erfindungsgemäß werden also bei diesem Verfahren die Verbindung von Schmelzkleberstreifen und Materialbogen einerseits und die Ausbildung der Falzlinie andererseits durch zwei nacheinander ablaufende Preßvorgänge hergestellt, wobei der Materialbogen zusammen mit dem Schmelzkleberstreifen vor dem zweiten Preßvorgang angehoben wird, und zwar durch die sich zunächst außerhalb des Preßbereichs befindenden Biegekanten, die zwischen den beiden Preßvorgängen in die für die Ausbildung der Falzlinien vorgesehenen Position(en) gebracht werden und dabei gleichzeitig den Materialbogen anhebt bzw. anheben. Obwohl dieses Verfahren im Gegensatz zu dem vorbekannten Verfahren zweistufig abläuft, hat es doch erhebliche Vorteile, die den Nachteil der Zweistufigkeit mehr als kompensieren. So geschieht das Anheben des Materialbogens durch Unterschieben der Biegekante(n) wesentlich gleichmäßiger und reproduzierbarer als dies von Hand möglich ist. Entsprechend gelingt das Herauslösen des Schmelzkleberstreifens wesentlich besser. Ein weiterer Vorteil besteht darin, daß die Biegekante(n) beim Unterschieben unter den Materialbogen beliebig positioniert werden können, d. h. man ist weitgehend frei in der Anordnung der Falzlinien. Sie können dort vorgesehen werden, wo sie für die Falzung des Einbandes besonders günstig sind.According to the invention, in this method, the connection of hot-melt adhesive strips and material sheet on the one hand and the formation of the fold line on the other hand are produced by two successive pressing processes, the material sheet being lifted together with the hot-melt adhesive strip before the second pressing process, namely by those that are initially outside the pressing area Bending edges which are brought into the position (s) provided for the formation of the fold lines between the two pressing processes and at the same time raise or raise the material sheet. Although this process, in contrast to the previously known process, is carried out in two stages, it has considerable advantages which more than compensate for the disadvantage of the two-stage process. The material sheet is lifted by pushing in the bending edge (s) much more evenly and reproducibly than is possible by hand. Accordingly, the hot melt adhesive strip is much easier to remove. Another The advantage is that the bending edge (s) can be positioned as desired when pushed under the sheet of material, ie you are largely free in the arrangement of the fold lines. They can be provided where they are particularly cheap for folding the cover.

Das erfindungsgemäße Verfahren eröffnet darüber hinaus die Möglichkeit, den Pressendruck bei den beiden Preßvorgängen entsprechend den jeweiligen Anforderungen anzupassen. Für die Verbindung von Schmelzkleberstreifen und Materialbogen ist nämlich nur ein geringer Druck erforderlich. Bei Anwendung eines solchen Druckes wird die Neigung zum Anhaften noch weiter verringert, so daß das Anheben des Materialbogens mit Hilfe der Biegekante(n) völlig problemlos erfolgt. Für die Ausbildung der Falzlinien mit Hilfe des zweiten Preßvorgangs kann dann ein entsprechend höherer Druck vorgesehen werden, der eine optimale Falzlinienbildung gewährleistet. Da die Biegekante bzw. die Biegekanten nach dem zweiten Preßvorgang zurückfahren, ist der Schmelzkleberstreifen nicht mehr von dieser bzw. diesen eingerahmt und kann deshalb der Materialbogen problemlos und ohne die Gefahr des Verschiebens des Schmelzkleberstreifens entnommen werden. Man erhält einen Einband von hoher Qualität, wobei garantiert ist, daß diese Qualität reproduzierbar ist.The method according to the invention also opens up the possibility of adapting the press pressure in the two pressing processes according to the respective requirements. Only a small amount of pressure is required to connect the hot-melt adhesive strips and the sheet of material. When such a pressure is applied, the tendency to adhere is further reduced, so that the lifting of the material sheet with the aid of the bending edge (s) takes place without any problems. A correspondingly higher pressure can then be provided for the formation of the fold lines with the aid of the second pressing process, which ensures optimum fold line formation. Since the bending edge or the bending edges retract after the second pressing process, the hot-melt adhesive strip is no longer framed by this or these and the sheet of material can therefore be removed easily and without the risk of the hot-melt adhesive strip moving. A high quality cover is obtained, which guarantees that this quality is reproducible.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die Biegekante(n) den Materialbogen zunächst außerhalb des Preßbereichs unterstützt bzw. unterstützen, bis sie in die für die Ausbildung der Falzlinie(n) vorgesehene(n) Position(en) bewegt wird bzw. werden. Auf diese Weise bereitet das Bewegen der Biegekante(n) in die für die Ausbildung der Falzlinie(n) vorgesehene Position keine Probleme.In a further embodiment of the invention, it is provided that the bending edge (s) initially support the material sheet outside the pressing area until it is or are moved into the position (s) provided for the formation of the fold line (s) . In this way, moving the bending edge (s) into the position provided for the formation of the fold line (s) does not prepare Problems.

Eine Vorrichtung zur Herstellung des Einbandes ist erfindungsgemäß durch folgende Merkmale gekennzeichnet:

  • e) die Biegekante(n) ist bzw. sind für die Verbindung von Schmelzkleberstreifen und Materialbogen aus dem Einwirkungsbereich des Preßstempels herausbewegbar;
  • f) die Biegekante(n) ist bzw. sind für die Ausbildung der Falzlinie(n) jeweils aus der Position außerhalb des Einwirkungsbereichs des Preßstempels in eine Position unterhalb der vorgesehenen Falzlinie bewegbar;
  • g) die Biegekante(n) steht bzw. stehen so weit vor, daß der Materialbogen zusammen mit dem Schmelzkleberstreifen bei Bewegung der Biegekante(n) in den Einwirkungsbereich des Stempels angehoben wird.
A device for producing the cover is characterized according to the invention by the following features:
  • e) the bending edge (s) can be moved out of the area of influence of the press ram for the connection of hot-melt adhesive strips and material sheet;
  • f) the bending edge (s) can be moved to form the fold line (s) from the position outside the area of influence of the press die to a position below the intended fold line;
  • g) the bending edge (s) protrude so far that the material sheet together with the hot-melt adhesive strip is raised when the bending edge (s) move into the area of influence of the stamp.

Mit dieser Vorrichtung läßt sich das erfindungsgemäße Verfahren ausführen und werden dann die vorstehend dargelegten Vorteile erzielt. Dabei ist es besonders vorteilhaft, wenn für die Vorrichtung eine Drucksteuereinrichtung zur Verringerung des Preßdruckes für die Verbindung des Schmelzkleberstreifens mit dem Materialbogen und zur Erhöhung des Preßdruckes für die Ausbildung der Falzlinie(n) vorgesehen ist.With this device, the method according to the invention can be carried out and the advantages set out above are then achieved. It is particularly advantageous if a pressure control device for reducing the pressing pressure for connecting the hot-melt adhesive strip to the material sheet and for increasing the pressing pressure for the formation of the fold line (s) is provided for the device.

In Ausbildung der Erfindung ist vorgeschlagen, daß ein erster Preßstempel für die Verbindung zwischen Schmelzkleberstreifen und Materialbogen und ein zweiter Preßstempel für die Ausbildung der Falzlinien vorgesehen sind, die wechselweise in die Position gegenüber der Unterlage bewegbar sind, wobei der zweite Preßstempel Nuten für die Falzlinien aufweist. Mit der Erfindung wird also die Möglichkeit eröffnet, für die Anheftung des Schmelzkleberstreifens einerseits und die Ausbildung der Falzlinien andererseits verschiedene Preßstempel vorzusehen, die den jeweiligen Anforderungen optimal angepaßt sind. So kann der erste Preßstempel allein mit einer Heizeinrichtung versehen sein und der zweite Preßstempel eine harte, modellierte Preßfläche aufweisen.In an embodiment of the invention it is proposed that a first press die for the connection between the hot-melt adhesive strip and the sheet of material and a second press die for the formation of the fold lines are provided, which can be moved alternately into the position relative to the base, the second press die having grooves for the fold lines. The invention thus opens up the possibility of providing various press rams for attaching the hot-melt adhesive strip on the one hand and for forming the fold lines on the other hand, which are optimally adapted to the respective requirements. For example, the first press die can be provided with a heating device alone and the second press die can have a hard, modeled press surface.

Nach einem weiteren Merkmal der Erfindung ist vorgeschlagen, daß die Biegekante(n) auch in der Position außerhalb des Einwirkungsbereichs des Preßstempels eine Auflage für den Materialbogen bildet. Dies bedeutet, daß die Biegekante(n) nicht so weit herausfährt bzw. herausfahren, daß sie sich in seiner bzw. ihrer Endstellung außerhalb des Materialbogens befinden.According to a further feature of the invention, it is proposed that the bending edge (s) also form a support for the material sheet in the position outside the area of influence of the press ram. This means that the bending edge (s) does not extend or extend so far that they are in its or their end position outside the material sheet.

Die Bewegung der Biegekante(n) bei ihrer Ortsveränderung kann relativ frei gewählt werden. Vorzuziehen ist jedoch eine Anordnung der Biegekante(n) jeweils auf einem Schiebeelement, das senkrecht zum Verlauf der Biegekante(n) beweglich ist. Auf diese Weise ist die Bewegung gradlinig und translatorisch, so daß beispielsweise dopppelt wirkende Teleskopzylinder für die Bewegung eingesetzt werden können.The movement of the bending edge (s) when changing their location can be chosen relatively freely. However, it is preferable to arrange the bending edge (s) on a sliding element that is movable perpendicular to the course of the bending edge (s). In this way, the movement is straight and translational, so that, for example, double-acting telescopic cylinders can be used for the movement.

Die Ausrichtmittel für den Schmelzkleberstreifen sind zweckmäßigerweise zwei für die Anlage an dessen Längsseiten bestimmte Führungswandungen, von denen zumindest eine zur Veränderung des Abstands gegenüber der anderen verschiebbar ist. Auf diese Weise lassen sich die Ausrichtmittel auch schnell der jeweiligen Breite des Schmelzkleberstreifens anpassen. Dabei ist es von Vorteil, daß die bewegbare Führungswandung Teil einer verschieblich geführten Führungseinrichtung ist, auf der die Ausrichteinrichtung für den Materialbogen angeordnet ist. Dies hat zur Folge, daß bei einer Veränderung der Breite des Schmelzkleberstreifens gleichzeitig auch die Ausrichteinrichtung entsprechend dem dann verwendeten Materialbogen automatisch angepaßt wird. Bei dieser Anordnung ist es weiter zweckmäßig, daß die zugehörige Biegekante auf der Führungseinrichtung - gegebenfalls zusammen mit dem Teleskopzylinder - beweglich gelagert ist. Bei Veränderung der Breite des Schmelzkleberstreifens erfolgt auch insoweit eine automatische Anpassung hinsichtlich der Anordnung der Falzlinie, d. h. der Abstand zwischen der Seitenwandung des Schmelzkleberstreifens und der Falzlinie bleibt gleich, ohne daß hierfür besondere Einstellmaßnahmen getroffen werden müssen.The aligning means for the hot-melt adhesive strip are expediently two guide walls intended for contact on the longitudinal sides thereof, at least one of which can be displaced relative to the other in order to change the distance. In this way, the alignment means can also be quickly adapted to the respective width of the hot-melt adhesive strip. It is advantageous that the movable guide wall is part of a displaceably guided guide device on which the alignment device is arranged for the material sheet. The result of this is that when the width of the hot-melt adhesive strip is changed, the alignment device is also automatically adapted in accordance with the material sheet then used. In this arrangement, it is further expedient that the associated bending edge on the guide device - if necessary together with the telescopic cylinder - is movably mounted. If the width of the hot-melt adhesive strip is changed, there is also an automatic adjustment with regard to the arrangement of the fold line, ie the distance between the side wall of the hot-melt adhesive strip and the fold line remains the same, without the need for special adjustment measures.

Für die Verschiebung der Führungswandung kann ebenfalls ein doppelt wirkender Teleskopzylinder vorgesehen sein. Im Betrieb sollte er derart unter Vorspannung stehen, daß die bewegbare Führungswandung in Richtung auf die gegenüberliegende Führungswandung gedrückt wird und an einem Anschlag anliegt. Eine besondere Befestigung der beweglichen Führungswandung kann dann entfallen. Als Anschlag kommt beispielsweise eine die Unterlage für den Schmelzkleberstreifen bildenden Leiste in Frage.A double-acting telescopic cylinder can also be provided for the displacement of the guide wall. In operation, it should be pre-tensioned in such a way that the movable guide wall is pressed in the direction of the opposite guide wall and bears against a stop. A special attachment of the movable guide wall can then be omitted. For example, a bar forming the base for the hot-melt adhesive strip can be used as a stop.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß für den Halt des Materialbogens auf der Vorrichtung Saugbohrungen in zumindest einer Auflagefläche vorgesehen sind, die mit einer Unterdruckquelle verbunden sind. Durch entsprechende Unterdruckbeaufschlagung kann der Materialbogen während der Preßvorgänge und gegebenenfalls auch während der Bewegung der Biegekante(n) fixiert werden.According to a further feature of the invention, it is provided that suction bores are provided in at least one support surface for holding the material sheet on the device and are connected to a vacuum source. The material sheet can be fixed during the pressing processes and, if necessary, also during the movement of the bending edge (s) by applying a corresponding vacuum.

Schließlich sieht die Erfindung vor, daß die Vorrichtung ohne den Preßstempel verschiebbar auf einem Untergestell gelagert ist und daß eine Saughebeeinrichtung im Bewegungsbereich der Vorrichtung neben dem Preßstempel zum Anheben des Materialbogens nach dem zweiten Preßvorgang vorgesehen ist. Durch Verschieben dieses Teils der Vorrichtung unter dem Preßstempel kann der Materialbogen in eine Position unterhalb der Saughebeeinrichtung gebracht werden, die den Materialbogen dann anhebt. Nach dem Anheben kann der besagte Teil der Vorrichtung wieder zurückgefahren werden. Die Saughebeeinrichtung wird dann außer Kraft gesetzt, so daß der Materialbogen nach unten in beispielsweise einen Fangkorb fallen kann, wo die Materialbögen nacheinander gestapelt werden.Finally, the invention provides that the device is displaceably mounted on a base frame without the press ram and that a suction lifting device is provided in the movement area of the device next to the press ram for lifting the material sheet after the second pressing process. By moving this part of the device under the press ram, the material sheet can be brought into a position below the suction lifting device, which then lifts the material sheet. After lifting, said part of the device can be moved back again. The suction lifting device is then deactivated, so that the material sheet can fall down into, for example, a collecting basket, where the material sheets are stacked one after the other.

In der Zeichnung ist die Erfindung an Hand eines Ausführungsbeispiels näher veranschaulicht. Es zeigen jeweils in schematischer Darstellung:

Figur (1)
eine perspektivische Ansicht einer Vorrichtung zur Herstellung eines Einbandes;
Figur (2)
einen Vertikalschnitt durch die Vorrichtung gemäß Figur (1) mit eingelegtem Materialbogen vor dem ersten Preßvorgang, jedoch ohne Führungsbolzen;
Figur (3)
einen Vertikalschnitt gemäß Figur (2) beim ersten Preßvorgang;
Figur (4)
einen Vertikalschnitt gemäß den Figuren (2) und (3) beim Anheben des Materialbogens und
Figur (5)
einen Vertikalschnitt gemäß den Figuren (2) bis (4) beim zweiten Preßvorgang.
In the drawing, the invention is illustrated in more detail using an exemplary embodiment. Each shows in a schematic representation:
Figure (1)
a perspective view of a device for producing a cover;
Figure (2)
a vertical section through the device according to Figure (1) with inserted sheet of material before the first pressing process, but without guide pin;
Figure (3)
a vertical section according to Figure (2) in the first pressing process;
Figure (4)
a vertical section according to Figures (2) and (3) when lifting the material sheet and
Figure (5)
a vertical section according to Figures (2) to (4) in the second pressing process.

Die in Figur (1) schematisch dargestellte Vorrichtung (1) weist eine Grundplatte (2) auf, die mit einer Stufe (3) versehen ist, durch welche zwei voneinander getrennte und in unterschiedlicher Höhenlage befindliche Oberseiten (4, 5) entstehen.The device (1) shown schematically in FIG. (1) has a base plate (2) which is provided with a step (3) by means of which two upper sides (4, 5) separate from one another and located at different heights are created.

Auf der niedriger gelegenen Oberseite (5) ist eine Führungsplatte (6) in den Richtungen des Doppelpfeils A verschieblich gelagert. Für die Verschiebung ist ein doppelt wirkender Teleskopzylinder (7) vorgesehen - was nicht näher dargestellt ist -, der mit der Rückseite der Führungsplatte (6) verbunden ist. Die Dicke der Führungsplatte (6) entspricht dem Höhenunterschied zwischen den beiden Oberseiten (4, 5).A guide plate (6) is mounted displaceably in the directions of the double arrow A on the lower side (5). For the displacement, a double-acting telescopic cylinder (7) is provided - which is not shown in detail - which is connected to the rear of the guide plate (6). The thickness of the guide plate (6) corresponds to the difference in height between the two upper sides (4, 5).

Die Stufe (3) und die gegenüberliegende Stirnseite der Führungsplatte (6) bilden Führungswandungen (8, 9) und begrenzen einen Abschnitt (10) der niedriger gelegenen Oberseite (5), dessen Breite von der jeweiligen Stellung der Führungsplatte (6) bestimmt wird. Führungswandungen (8, 9) und Abschnitt (10) bilden eine nach oben offene Nut (11).The step (3) and the opposite end face of the guide plate (6) form guide walls (8, 9) and delimit a section (10) of the lower upper side (5), the width of which is determined by the respective position of the guide plate (6). Guide walls (8, 9) and section (10) form an upwardly open groove (11).

Auf der Führungsplatte (6) ist in einem der Nut (11) entfernten Bereich ein Winkelprofil (12) aufmontiert. Die Befestigung geschieht mittels zweier Schrauben (13, 14), die in Langlöchern (15, 16) sitzen, welche sich jeweils in der Verschieberichtung der Führungsplatte (6) erstrecken. Auf diese Weise kann das Winkelprofil (12) relativ zur Führungsplatte (6) verstellt, also der Abstand zur Nut (11) vergrößert oder verkleinert werden.An angle profile (12) is mounted on the guide plate (6) in an area removed from the groove (11). The attachment is done by means of two screws (13, 14) which sit in elongated holes (15, 16), each of which extends in the direction of displacement of the guide plate (6). In this way, the angle profile (12) can be adjusted relative to the guide plate (6), ie the distance to the groove (11) can be increased or decreased.

Auf der Oberseite (4) der Grundplatte (2) ist ein Schieberprofil (17) verschieblich gelagert, und zwar in Richtung auf die Nut (11) oder von dieser weg. An einer Seite weist das Schieberprofil (17) einen nach unten gerichteten Schenkel (18) auf, der mit einem doppelt wirkenden Teleskopzylinder (19) verbunden ist. Dieser Teleskopzylinder (19) ist an der Grundplatte (2) befestigt und kann das Schieberprofil (17) in den genannten Richtungen hin- und herbewegen.On the top (4) of the base plate (2), a slide profile (17) is slidably mounted, in the direction of the groove (11) or away from it. On one side, the slide profile (17) has a leg (18) directed downwards, which is connected to a double-acting telescopic cylinder (19). This telescopic cylinder (19) is attached to the base plate (2) and can move the slide profile (17) back and forth in the directions mentioned.

Ein entsprechend ausgebildetes Schieberprofil (20) ist auf der Führungsplatte (6) gelagert und kann ebenfalls in Richtung auf die Nut (11) oder von dieser wegbewegt werden. Das Schieberprofil (20) weist gleichfalls einen nach unten gerichteten Schenkel (21) auf, der mit einem weiteren, doppelt wirkenden Teleskopzylinder (22) verbunden ist. Dieser Teleskopzylinder (22) ist - was hier nicht näher zu sehen ist - an der Führungsplatte (6) befestigt, so daß er sich bei einer Verschiebung der Führungsplatte (6) mit dieser bewegt.A correspondingly designed slide profile (20) is mounted on the guide plate (6) and can also be moved in the direction of the groove (11) or away from it. The slide profile (20) also has a leg (21) directed downwards, which is connected to a further, double-acting telescopic cylinder (22). This telescopic cylinder (22) - which is not shown here - is attached to the guide plate (6) so that it moves with the guide plate (6) when it is displaced.

Auf den Oberseiten der Schieberprofile (17, 20) sind über deren Breite verlaufende, hochstehende Biegestege (23, 24) angeordnet, und zwar im Abstand zu den gegenüberliegenden Kanten der Schieberprofile (17, 20).On the upper sides of the slide profiles (17, 20), upstanding bending webs (23, 24) extending over their width are arranged, namely at a distance from the opposite edges of the slide profiles (17, 20).

Oberhalb der Nut (11) ist ein sich über die Breite der Grundplatte (2) erstreckender Preßstempel (25) vorgesehen. Er ist an einem ebenfalls doppelt wirkenden Teleskopzylinder (26) aufgehängt und läßt sich mit dessen Hilfe vertikal aufwärts- und abwärtsbewegen.Above the groove (11) there is a press ram (25) which extends over the width of the base plate (2). It is suspended from a double-acting telescopic cylinder (26) and can be moved vertically up and down with its help.

Die Grundplatte (2) ist über Rollen (27, 28, 29) auf einer Führungsbahn (30) verschieblich in den Richtungen des Doppelpfeils B gelagert. Ortsfest bleiben allein der Preßstempel (25) und der Teleskopzylinder (26). Durch einen hier nicht näher dargestellten Antrieb kann die Grundplatte (2) soweit in Richtung auf eine Abhebeeinrichtung (31) bewegt werden, daß ihr pneumatischer Saugteller (32) in der gezeigten Stellung etwas oberhalb des Abschnittes (10) hängt. Der Saugteller (32) kann dann durch Verschwenken eines Saugarmes (33) auf einen fertiggestellten Materialbogen abgesenkt werden, diesen aufnehmen und nach Zurückfahren der Grundplatte (2) in einem Sammelkorb ablegen. Auf diese Weise ist die Entnahme des Materialbogens aus der Vorrichtung (1) automatisiert.The base plate (2) is on a roller (27, 28, 29) Guide track (30) slidably mounted in the directions of the double arrow B. Only the ram (25) and the telescopic cylinder (26) remain stationary. By means of a drive, not shown here, the base plate (2) can be moved towards a lifting device (31) to such an extent that its pneumatic suction plate (32) hangs somewhat above section (10) in the position shown. The suction plate (32) can then be lowered onto a finished material sheet by pivoting a suction arm (33), pick it up and place it in a collection basket after the base plate (2) has been moved back. In this way, the removal of the sheet of material from the device (1) is automated.

Die Arbeitsweise dieser Vorrichtung (1) für die Herstellung eines Einbandes läßt sich den Figuren (2) bis (5) entnehmen.The operation of this device (1) for the production of a cover can be seen in Figures (2) to (5).

Zunächst wird ein Schmelzkleberstreifen (34) in die Nut (11), also zwischen die Führungswandungen (8, 9) eingelegt. Die Tiefe der Nut (11) bzw. die Höhe der Führungswandungen (8, 9) ist so bemessen, daß der Schmelzkleberstreifen (34) ein wenig aus der Nut (11) und damit über die von der Oberseite (4) der Grundplatte (2) und der Oberseite der Führungsplatte (6) gebildeten Ebene hinausragt. Die Schieberprofile (17, 20) befinden sich in der am weitesten auseinandergezogenen Stellung, in der sie den größten Abstand zur Nut (11) haben. Auf die Schieberprofile (17, 20) wird ein passender Materialbogen (35) aufgelegt. Seine in dieser Ansicht rechte Kante liegt an dem Winkelprofil (12) an. Die Lage des Winkelprofils (12) ist so eingestellt, daß der den Einbandrücken vorgesehene Bereich des Materialbogens (35) genau oberhalb des Schmelzkleberstreifens (34) zu liegen kommt, wenn der Materialbogen (35) an dem Winkelprofil (12) anliegt. Damit ist die in Figur (2) dargestellte Situation gegeben.First, a hot-melt adhesive strip (34) is inserted into the groove (11), that is, between the guide walls (8, 9). The depth of the groove (11) or the height of the guide walls (8, 9) is dimensioned such that the hot-melt adhesive strip (34) a little out of the groove (11) and thus over that of the upper side (4) of the base plate (2 ) and the top of the guide plate (6) formed protrudes. The slide profiles (17, 20) are in the most extended position, in which they are at the greatest distance from the groove (11). A suitable material sheet (35) is placed on the slide profiles (17, 20). Its right edge in this view lies against the angle profile (12). The position of the angle profile (12) is set so that the area of the material sheet (35) provided on the cover spine comes to lie exactly above the hot-melt adhesive strip (34) when the Material sheet (35) on the angle profile (12). This gives the situation shown in FIG. (2).

Wie aus Figur (3) zu ersehen ist, wird nun der Preßstempel (25) abgesenkt, wodurch der Materialbogen (35) im mittleren Bereich nach unten gegen den Schmelzkleberstreifen (34) gedrückt wird. Da der Preßstempel (25) beheizt ist, wird der Schmelzkleberstreifen (34) im Bereich der Anlagefläche zum Materialbogen (35) durch Erwärmung klebfähig gemacht, so daß der Schmelzkleberstreifen (34) an dem Materialbogen (35) anhaftet. Der aufzuwendende Druck ist bei diesem ersten Preßvorgang relativ gering.As can be seen from Figure (3), the press ram (25) is now lowered, as a result of which the material sheet (35) is pressed downward against the hot-melt adhesive strip (34) in the central region. Since the press ram (25) is heated, the hot-melt adhesive strip (34) is made adhesive by heating in the area of the contact surface to the material sheet (35), so that the hot-melt adhesive strip (34) adheres to the material sheet (35). The pressure to be applied in this first pressing process is relatively low.

Der Preßstempel (25) wird anschließend angehoben. Gleichzeitig oder unmittelbar danach werden die Schieberprofile (17, 20) synchron in Richtung auf die Nut (11) bewegt, und zwar durch entsprechenden Antrieb mittels der Teleskopzylinder (19, 22). Hierdurch wird der Materialbogen (35) auch im Einwirkungsbereich des Preßstempels (25) angehoben und damit der Schmelzkleberstreifen (34) von dem Abschnitt (10) abgehoben. Die Bewegung der Schieberprofile (17, 20) erfolgt so weit, bis die von ihnen hochstehenden Biegestege (23, 24) in einer Position unterhalb der in den Materialbogen (35) einzuformenden Falzlinien liegen. Diese Positionen können beispielsweise durch Anschläge an der Grundplatte (2) bzw. an der Führungsplatte (6) vorgegeben werden, wobei es zweckmäßig ist, daß diese Anschläge in den Bewegungsrichtungen der Schieberprofile (17, 20) verstellbar sind, um den Abstand der Falzlinien in Bezug auf den Schmelzkleberstreifen (34) entsprechend den jeweiligen Anforderungen frei wählen zu können.The press ram (25) is then raised. At the same time or immediately thereafter, the slide profiles (17, 20) are moved synchronously in the direction of the groove (11), by means of a corresponding drive by means of the telescopic cylinders (19, 22). As a result, the material sheet (35) is also raised in the area of action of the press ram (25) and the hot-melt adhesive strip (34) is thus lifted off the section (10). The movement of the slide profiles (17, 20) is carried out until the bending webs (23, 24) projecting from them lie in a position below the fold lines to be formed in the material sheet (35). These positions can be specified, for example, by stops on the base plate (2) or on the guide plate (6), it being expedient that these stops can be adjusted in the directions of movement of the slide profiles (17, 20) by the distance of the fold lines in With regard to the hot-melt adhesive strip (34) to be able to choose freely according to the respective requirements.

Nach Erreichen der Endpositionen der Schieberprofile (17, 20) wird der Preßstempel (25) zur Vornahme des zweiten Preßvorgangs nochmals abgesenkt, wie dies Figur (5) zeigt. Der aufgeprägte Druck ist jetzt erheblich größer als bei dem ersten Preßvorgang, so daß über die Biegestege (23, 24) Falzlinien in den Materialbogen (35) eingeformt werden. Danach wird der Preßstempel (25) wieder angehoben und fahren die Schieberprofile (17, 20) wieder in ihre in Figur 2 dargestellte Ausgangsstellungen zurück. Der Materialbogen (35) ist dann zur Bildung eines Einbandes fertiggestellt. Anschließend kann der Materialbogen (35) problemlos aus der Vorrichtung (1) herausgenommen werden, wobei dies vorzugsweise nicht von Hand geschieht, sondern automatisch mit Hilfe der in Figur (1) dargestellten Abhebeeinrichtung (31) nach Verschieben der Grundplatte (2) in Richtung auf diese Abhebeeinrichtung (31). Nach Entfernen des Materialbogens (35) wird die Grundplatte (2) wieder in die Ausgangsstellung zurückbewegt.After reaching the end positions of the slide profiles (17, 20) the press ram (25) is lowered again to carry out the second pressing process, as shown in FIG. (5). The pressure applied is now considerably greater than in the first pressing process, so that fold lines are formed in the material sheet (35) via the bending webs (23, 24). Then the press ram (25) is raised again and the slide profiles (17, 20) move back into their initial positions shown in FIG. 2. The material sheet (35) is then completed to form a cover. The sheet of material (35) can then be removed from the device (1) without any problems, this preferably not being done manually, but automatically with the aid of the lifting device (31) shown in FIG. (1) after the base plate (2) has been moved in the direction of this lifting device (31). After removing the material sheet (35), the base plate (2) is moved back into the starting position.

Während der gesamten Vorgänge wird die Führungsplatte (6) unter entsprechender Druckbeaufschlagung des Teleskopzylinders (7) unter Vorspannung in Richtung auf die Führungswandung (8) gehalten. Ein Anschlag in Form einer in die Nut (11) auf den Abschnitt (10) aufgelegten Leiste (36), verhindert dann ein weiteres Zusammenrücken der Führungswandungen (8, 9), hält also die Führungsplatte (6) auf Abstand zur Führungswandung (8). Die Breite der Leiste (36) entspricht im wesentlichen der jeweils verwendeten Breite des Schmelzkleberstreifens (34) und kann an diesen angepaßt werden.During the entire process, the guide plate (6) is held in the direction of the guide wall (8) under prestress by applying appropriate pressure to the telescopic cylinder (7). A stop in the form of a bar (36) placed in the groove (11) on the section (10) then prevents the guide walls (8, 9) from moving further together, thus keeping the guide plate (6) at a distance from the guide wall (8) . The width of the strip (36) corresponds essentially to the width of the hot-melt adhesive strip (34) used and can be adapted to this.

Bei Verwendung eines Schmelzkleberstreifens (34) anderer Breite, beispielsweise eines breiteren Schmelzkleberstreifens, wird die Führungsplatte (6) zur Verbreiterung der Nut (11) zurückgefahren und eine entsprechend angepaßte Leiste (36) als Anschlag für die Führungsplatte (6) in die Nut (11) eingelegt. Ansonsten ist es nicht notwendig, Änderungen vorzunehmen, sofern der Abstand der Falzlinien in Bezug zu den Seitenwandungen des Schmelzkleberstreifens (34) nicht verändert werden soll. Mit dem Zurückfahren der Führungsplatte (6) wird nämlich gleichzeitig auch die relative Position des Schieberprofils (20) und die des Winkelprofils (12) verändert, da beide mit der Führungsplatte (6) verbunden sind. Die Vorrichtung (1) läßt sich also sehr einfach und schnell an verschieden breite Schmelzkleberstreifen (34) und entsprechend angepaßte Formate des Materialbogens (35) anpassen.When using a hot melt adhesive strip (34) of a different width, for example a wider hot melt adhesive strip, the guide plate (6) is retracted to widen the groove (11) and one appropriately adapted bar (36) inserted as a stop for the guide plate (6) in the groove (11). Otherwise, it is not necessary to make changes, provided the distance of the fold lines in relation to the side walls of the hot-melt adhesive strip (34) is not to be changed. When the guide plate (6) moves back, the relative position of the slide profile (20) and that of the angle profile (12) is changed at the same time, since both are connected to the guide plate (6). The device (1) can thus be adapted very easily and quickly to differently wide hot melt adhesive strips (34) and correspondingly adapted formats of the material sheet (35).

Claims (18)

  1. A process for manufacturing book covers or the like from a sheet of material and a strip of hot-melt adhesive, with the following features:
    a) The strip of hot-melt adhesive is aligned on a base;
    b) the sheet of material is placed on the strip of hot-melt adhesive, aligned in relation to the latter;
    c) the sheet of material is pressed on to the strip of hot-melt adhesive to join the strip of hot-melt adhesive to the sheet of material;
    d) at least one fold line is formed in the sheet of material adjacent to at least one longitudinal side of the strip of hot-melt adhesive by pressing against a bending edge each time;
    characterised by the following features:
    e) the fold line(s) is or are first formed, respectively, after joining the strip of hot-melt adhesive (34) to the sheet of material (35), in that
    aa) after the conclusion of the first pressing process, the bending edge or the bending edges (23, 24) is or are pushed, respectively, sufficiently far under the sheet of material (35) until it is or they are located, respectively, in a position below the planned fold line each time,
    bb) by means of this the sheet of material (35) is raised far enough until the strip of hot-melt adhesive (34) is raised from the base (10),
    cc) the sheet of material (35) is then pressed against the bending edge(s) (23, 24) in a second pressing process.
  2. A process according to Claim 1, characterised in that the bending edge(s) (23, 24) first supports or support, respectively, the sheet of material (35) outside the pressing region until it is or they are moved, respectively, into the position(s) scheduled for the formation of the fold line(s).
  3. A process according to Claim 1 or 2, characterised in that pressing to join the strip of hot-melt adhesive (34) and the sheet of material (35) is effected at a lower pressure than when pressing against the bending edge(s) (23, 24).
  4. A device for manufacturing a book cover, for the purpose of carrying out the process according to one of Claims 1 to 3, with the following features:
    a) the device has a base with means of alignment for a strip of hot-melt adhesive;
    b) it further has an alignment device for aligning a sheet of material in relation to the base;
    c) at least one bending edge is provided for forming a fold line in the sheet of material along the strip of hot-melt adhesive;
    d) at least one pressure ram is provided opposite the base for pressing the sheet of material in a direction on to the base;
    characterised by the following features:
    e) the bending edge(s) (23, 24) can be moved out of the region of action of the pressure ram (25) for joining the strip of hot-melt adhesive (34) and the sheet of material (35);
    f) the bending edge(s) (23, 24) can or can each be moved, respectively, from the position outside the region of action of the pressure ram (25) into a position below the planned fold line to form the fold line(s);
    g) the bending edge(s) (23, 24) protrudes or protrude, respectively, far enough so that the sheet of material (35), together with the strip of hot-melt adhesive (34), is raised on moving the bending edge(s) (23, 24) into the region of action of the pressure ram.
  5. A device according to Claim 4, characterised in that a pressure control device is provided, to reduce the pressing pressure for joining the strip of hot-melt adhesive (34) to the sheet of material (35), and to increase the pressing pressure for forming the fold line(s).
  6. A device according to Claim 4 or 5, characterised in that a first pressure ram is provided for the joint between the strip of hot-melt adhesive (34) and the sheet of material (35), and a second pressure ram is provided for forming the fold lines, which pressure rams are alternately movable into position in relation to the base (10), wherein the second pressure ram has grooves for the fold lines.
  7. A device according to one of Claims 4 to 6, characterised in that the pressure ram (25) or only the first pressure ram has a heating device.
  8. A device according to one of Claims 4 to 7, characterised in that the bending edge(s) (23, 24) also forms or form, respectively, a support for the sheet of material (35) in the position outside the region of action of the pressure ram (25).
  9. A device according to one of Claims 4 to 8, characterised in that the bending edge(s) (23, 24) is or are each, respectively, disposed on a sliding element (17, 20) which is movable perpendicularly to the course of the bending edge(s) (23, 24).
  10. A device according to one of Claims 4 to 9, characterised in that the bending edge(s) (23, 24) is or are driven, respectively, by means of double-acting telescopic cylinders (19, 22).
  11. A device according to one of Claims 4 to 10, characterised in that the means of alignment for the strip of hot-melt adhesive (34) comprise two guide walls (8, 9) intended for contacting the longitudinal sides of the strip of hot-melt adhesive, at least one of which guide walls is movable so as to alter its distance from the other.
  12. A device according to Claim 11, characterised in that the movable guide wall (9) is part of the movably guided guide device (6) on which the means of alignment (12) for the sheet of material (35) is disposed.
  13. A device according to Claim 12, characterised in that the associated bending edge (24) is movably mounted on the guide device (6) - possibly together with the associated telescopic cylinder (22).
  14. A device according to one of Claims 9 to 13, characterised in that a telescopic cylinder (7) is provided for moving the guide walls (9).
  15. A device according to Claim 14, characterised in that the telescopic cylinder (7) is biassed in operation in such a way that the movable guide wall (9) is pressed in a direction towards the opposite guide wall (8) and is seated against a stop (36).
  16. A device according to Claim 15, characterised in that the stop is a strip which forms the base for the strip of hot-melt adhesive.
  17. A device according to one of Claims 4 to 16, characterised in that suction holes, which are connected to a source of reduced pressure, are provided in at least one support surface, for holding the sheet of material (35).
  18. A device according to one of Claims 4 to 17, characterised in that the device (1) is movably mounted without the pressure ram (25) on a sub-frame, and that a suction lifting device is provided in the region of movement of the device (1) near the pressure ram (25) for raising the sheet of material (35) after the second pressing process.
EP89115324A 1988-09-03 1989-08-19 Method and apparatus for manufacturing book binding covers and the like Expired - Lifetime EP0358019B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89115324T ATE85554T1 (en) 1988-09-03 1989-08-19 METHOD AND DEVICE FOR THE MANUFACTURE OF BINDINGS OR THE LIKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3829977A DE3829977A1 (en) 1988-09-03 1988-09-03 METHOD AND DEVICE FOR PRODUCING BINDINGS OR THE LIKE
DE3829977 1988-09-03

Publications (3)

Publication Number Publication Date
EP0358019A2 EP0358019A2 (en) 1990-03-14
EP0358019A3 EP0358019A3 (en) 1990-09-05
EP0358019B1 true EP0358019B1 (en) 1993-02-10

Family

ID=6362225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115324A Expired - Lifetime EP0358019B1 (en) 1988-09-03 1989-08-19 Method and apparatus for manufacturing book binding covers and the like

Country Status (10)

Country Link
US (1) US4968203A (en)
EP (1) EP0358019B1 (en)
JP (1) JPH02107493A (en)
AT (1) ATE85554T1 (en)
CA (1) CA1331827C (en)
DE (2) DE3829977A1 (en)
DK (1) DK167108B1 (en)
ES (1) ES2038808T3 (en)
FI (1) FI91138C (en)
NO (1) NO893519L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4403887C2 (en) * 1994-02-08 1996-10-02 Peter Lazar Method and device for applying hot melt adhesive to a cover sheet
US7874780B2 (en) * 2007-09-27 2011-01-25 Kelly Willauer Machine and method for making lay-flat photo books

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1665003A (en) * 1926-08-14 1928-04-03 Jesse Satenstein Case-forming attachment
US3068501A (en) * 1961-06-19 1962-12-18 Smyth Mfg Co Apparatus for assembling components of cases for books
US3137874A (en) * 1963-04-02 1964-06-23 Brock And Rankin Book backbone, method and machine
DE1536499C3 (en) * 1966-04-26 1973-12-13 Planatolwerk Willy Hesselmann Chemische Und Maschinenfabrik Fuer Klebetechnik, 8200 Rosenheim Device for the adhesive binding of stacks of sheets
US3532363A (en) * 1968-05-20 1970-10-06 Abildgaard Lab Plastic bookbinding apparatus and method
US3707418A (en) * 1970-10-16 1972-12-26 Xerox Corp Method of binding
US4129914A (en) * 1976-12-09 1978-12-19 Gerhard Jahn Automatic loading tray
SE413647B (en) * 1979-03-30 1980-06-16 Semotex Ab PROCEDURE AND DEVICE FOR PREPARING A PERM, A COPY OR SIMILAR
DE3010642C3 (en) * 1979-03-30 1995-11-09 Bind O Matic Ab Process for producing a cover, booklet or the like, and use of an apparatus therefor
US4289330A (en) * 1979-10-10 1981-09-15 General Binding Corporation Bookbinding system
CA1324779C (en) * 1984-12-13 1993-11-30 John V. Cross Bulk crop transportation
US4606689A (en) * 1985-07-05 1986-08-19 Bind-O-Matic Ab Method and apparatus for producing book covers, folders, booklets and the like
SE452287B (en) * 1986-03-14 1987-11-23 Bolin Goeran FOLDER OR SIMILAR WITH BINDING AGENTS AND PROCEDURES AND APPLIANCES FOR PREPARING THE SAME
DE3716112C1 (en) * 1987-05-14 1988-08-25 Peter Lazar Method and device for producing a cover or the like

Also Published As

Publication number Publication date
NO893519L (en) 1990-03-05
ES2038808T3 (en) 1993-08-01
EP0358019A3 (en) 1990-09-05
DE58903513D1 (en) 1993-03-25
DE3829977C2 (en) 1990-11-29
DK167108B1 (en) 1993-08-30
NO893519D0 (en) 1989-09-01
EP0358019A2 (en) 1990-03-14
FI894109A (en) 1990-03-04
FI91138B (en) 1994-02-15
ATE85554T1 (en) 1993-02-15
JPH02107493A (en) 1990-04-19
US4968203A (en) 1990-11-06
FI894109A0 (en) 1989-09-01
CA1331827C (en) 1994-09-06
DE3829977A1 (en) 1990-03-15
DK423889A (en) 1990-03-04
FI91138C (en) 1994-05-25
DK423889D0 (en) 1989-08-29

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