EP3235652B1 - Device for forming of book covers - Google Patents

Description

The invention relates to a device for deforming in each case a lying on both sides of a back region adjacent fold area lying outstretched book covers or a back area and each one on both sides of the back region adjacent Falzbereichs lying outstretched book covers according to the shape of the back of each one after a time together with one of the book covers a book book block. The apparatus has at least a first forming tool for a book cover belonging to a book block with a straight spine and at least a second forming tool for rounding the spine area of the book cover for a book cover belonging to a book block with a round spine. In addition, the device has a working position for one of the deformation tools and in each case a rest position for the one or the other deformation tools. Furthermore, the device has an aligned on an outer side of the back portion of the book covers counter tool, with two spaced apart, according to the width of the back portion of the book cover laterally adjustable Gegenformleisten. In this case, the deformation tool is aligned in its working position on an inner side of the back region of a book cover, lifting the back region of the book cover between the two Gegenformleisten and thereby forming a spine of the book cover forming. In addition, the device in each case has a tool bar positively or positively connected to the deformation tools and is equipped with a receiving element for the tool bar of the deformation tool arranged in the working position.

The industrial Buchendherstellung of hardcover books is mainly on book production lines on which book blocks are each combined with an associated book cover to finished books. When so-called hanging, ie when bonding the book cover with the book block, is the edge-accurate joining for a harmonious connection. Of importance for a high quality book is therefore the previous adaptation and possibly deforming the book cover in its middle area, ie in the back area, which receives the back of the book block in the finished book. Equally important is the deformation of the fold areas of the book cover, which adjoin each other directly at the center area, which form the later opening hinges of the finished book. The requirements for each under heat deformation of the book cover and thus to the deformation tool used differ depending on whether the finished book has a rounded or a square back and depending on the shape of the curve and the book thickness. Accordingly, the deformation tools must be designed to be adjustable and / or replaceable.

From the DE1436086 A is a bookbinding machine with a hooking known, in which the book cover is transferred from a magazine in a deformation station. There, the book cover in the back area is first preformed by a deformation tool. In order to form the fold regions separating the back region from the lateral book covers of the book cover, during the lifting of the deformation tool, two seam mold rails of a counter tool are brought in the opposite direction at least as far as the book cover. This in the DE1436086 A only very generally described procedure can be the DE19853254 A1 in more detail. There, the back portion of the book cover is pressed by means of a trained according to the shape of the book block, heated deformation tool against an elastically deformable support. The back area is rounded and the pressed-in fold areas are made articulated. Usually, the deformation tools are kept ready in common shape-dependent gradations and replaced in a change in the back shape of the book cover or the thickness class of the associated book block.

However, the required manual change of the deformation tools increases the set-up times of the machine. In addition, the newly used deformation tools still have no operating temperature and therefore must first be heated after installation.

In contrast, the disclosed EP1350634 A2 a deformation tool for the production of books with rounded back, which has a rectangular frame with a plurality of juxtaposed, adjustable with respect to the height of the frame slats. In order to produce book covers with differently rounded back areas with the same book thickness, however, several deformation tools must be provided with correspondingly different adjustable slats. In addition, the minimum thickness of the slats only causes a step-like approach to a predetermined curvature profile of the back region. Finally, the slats can be heated because of their mobility and the necessary height only with considerable inertia.

With the EP2325020 A1 is a device for deforming book covers for books with straight back known. Their depending on the thickness class of the books to be produced each interchangeable deformation tool has two spaced-apart, each resting on a tool bar by means of a baseboard, vertical moldings. The moldings are arranged in an initial position below and spaced from the book cover, which is initially still in an extended position. To form the provided on both sides of the back region folding areas of the book cover the moldings are dug together with their tool bar against above arranged Gegenformleisten. To deform the book cover is a heat application on the deformation tools. For this purpose, the tool bar carrying the deformation tool rests on an intermediate element designed as a heating element and equipped with heating rods. With the heating element, the deformation tool is both brought to operating temperature and held on this.

About their respective baseboard, the moldings are coupled in a management level each with two spaced apart along its longitudinal extent, eccentrically rotatable about a vertical axis driven and guided in the tool bar driver. The distance between the two support strips and thus the width of the back region of the book cover can be adjusted within a certain thickness class via an adjustment of the drivers taking place by means of a common drive. In this case, the introduction of the actuating force takes place in the tool bar by means of a positioning mechanism arranged below this. An actuator is arranged parallel to a longitudinal axis of the deformation tool.

EP2923852 A2 discloses the preamble of claim 1. In addition to a first deformation tool for book covers of books with straight back reveals the EP2923852 A2 also a second forming tool for book covers of books with round back. With the second deformation tool, the back region of a book cover can be rounded during its removal from its stretched position, wherein different formats and contours of the back region can be produced. For this purpose, this deformation tool has a base element, in which a first mold element is arranged displaceable in such a way that it can be lifted out of the base element. In the same way, a second mold element is arranged in the first mold element, so that both mold elements can be adjusted to one another or to the base element in a vertical plane to the flat-stretched book cover. In contrast, the adjustment of the spaced-apart form elements of the first mold in a horizontal plane to flat stretched book cover. In addition, their adjustment takes place together, wherein the mutual distance of the mold elements is adjusted. To implement this different adjustment of the two deformation tools, however, different components are required, which has relatively high manufacturing and replacement parts costs. Because the deformation tools are provided with identical interfaces, they can be interchanged as needed, ie, when changing jobs, from deforming book covers for books with straight backs to deforming book covers for books with round backs become. In this case, the two form elements each have a separate actuator and thus associated control elements. Due to the double actuators and actuators, however, this relatively long-building device is relatively complex and expensive. In addition, either no support of the shaping provided by an additional heat application on the deformation tools or the newly used deformation tool must be pre-heated before its first use.

The object of the invention is therefore to provide an alternative device for deforming lying stretched book covers, which simpler and cheaper converted from a work order for deforming book covers for books with a straight back on a subsequent work order for deforming book covers for books with a round back and vice versa can be.

This object is achieved by a device according to the characterizing part of claim 1. Advantageous embodiments of these devices are subject of the dependent claims.

The inventive device has a single actuator for each arranged in the working position deformation tool. The tool bar of the respectively arranged in the working position deformation tool is formed coupled to the single actuator. Each deformation tool has two spaced-apart, laterally adjustable moldings, which are each designed to be mutually adjustable, changing their mutual distance.

Due to the use of a single actuator for the moldings of each arranged in the working position deformation tool, the device can be relatively easily and inexpensively realized. In addition, everyone Deformation tools are designed to be adjustable analogously, each same adjusting elements can be used, which further reduces the manufacturing cost of the device and also reduces the cost of spare parts.

According to one embodiment of the device according to the invention, the actuator is arranged laterally to an imaginary, vertical plane through a longitudinal central axis of the tool bar located in its working position. Thus, the device can be constructed very compact.

According to a further embodiment of the device according to the invention, at least one preheating station is arranged for the at least one deformation tool located in the rest position. In a new job the corresponding deformation tool is already preheated from the rest position transferred to the working position. Therefore, the new deformation tool is ready for use immediately, whereby a relatively short job change can be realized.

According to a further embodiment of the device according to the invention, the at least one preheating station of the deformation tools is arranged in or close to the device such that the temperature of a deformation tool preheated in the preheating station does not or at least during its transport to the device and during installation into the device does not fall significantly below the operating temperature required to deform the book cover to be subsequently worked. If the latter is the case, the deformation tool in question is promptly brought to operating temperature by a heating element arranged in the device, ie, within a period of time that does not or only barely affects the order change. If the at least one preheating station is located in or on the device or in its immediate vicinity, the preheated and thus hot deformation tools are protected against unauthorized access.

By a corresponding production control, the production orders can be summarized according to the format change and the effectiveness of the machine can be increased, since subsequent orders are driven with the same preheated deformation tool.

According to a next embodiment of the device according to the invention, a separate preheating station is arranged for each deformation tool. This allows an even faster exchange of the deformation tools and thus a faster format change done, which increases the performance of the device.

According to a further embodiment of the device according to the invention, at least one sensor for identifying the deformation tools is arranged. Through this identification, an error-free assignment of the deformation tools to the respective work order and ultimately also an increase in performance is possible in advance.

According to further embodiments of the device according to the invention, the at least one sensor is arranged in at least one of the preheating stations or on the receiving element for the tool bar. As a result, depending on the job advantageously several options for the identification of the deformation tools.

According to a next embodiment of the device according to the invention, the at least one first deformation tool has two spaced first moldings, which are arranged laterally adjustable according to the width of the back region of the book cover. With this known solution for deforming a book cover for books with a straight back can also be in the inventive device with the at least one first deformation tool, the middle portion of the book cover in conjunction with the counter tool to be reshaped so that both a straight spine of the Book cover as well as on both sides directly adjoining opening hinges arise.

According to a further embodiment of the device according to the invention, the at least one second deformation tool has a fixed center molding web rounded off in the direction of the counter tool and two laterally arranged in the direction of the rounding and the width of the back region of the book cover, also rounded in the direction of the counter tool. second moldings on. Upon a corresponding job change from deforming book covers for books with straight backs to a second order for forming book covers for books with round backs, this second forming tool, i. with the convex components, namely with the two second moldings and the center forming web, both a round back web of the book cover and arise on both sides immediately subsequent opening hinges.

According to a next embodiment of the device according to the invention, the center forming web is formed symmetrically and has in each case a recess for at least partially receiving one of the two second moldings on both sides in a region facing the tool bar. Thus, the second moldings for adjusting the rounding and the width of the back portion of the book cover can plunge into the contour of the Mittenformstegs, which allows a relatively large adjustment range of the second deformation tool.

According to a further embodiment of the device according to the invention, the first and the second moldings are designed to be symmetrical with respect to a longitudinal center axis of the center mold web and thus adjustable symmetrically to the longitudinal axis of its deformation tool. Analogous to the symmetrical design of the book block so that the book cover can be symmetrically formed. This can be advantageously realized with a single actuator.

According to a further embodiment of the device according to the invention, at least two first deformation tools suitable for different thickness classes of back regions of the book covers to be deformed or the associated book block and at least two second coverings suitable for different thickness classes of back regions of the book covers to be formed or the book block associated therewith Deformation tools arranged. For example, a device equipped with two first and two second forming tools can deform book covers with both a straight and a round back portion for corresponding book blocks having a thickness of up to 60 mm.

Due to the small number of deformation tools, it is possible to associate each deformation tool with its own coded preheating station, the temperature of which can be set as a function of the book cover to be processed. The temperature settings of the different materials are stored in the machine control and can be assigned to the coded preheating stations based on the existing order data of the follow-up orders. In addition, it is possible by encoding the deformation tools that their use is monitored in the machine and so misadjustments are prevented.

The grading of the deformation tools according to thickness classes is dependent on other parts of the book making machine, so that a rational production is ensured within this grading. Thus, the gradations are determined in terms of book thickness so that in a grading in any area of the book production line replacement parts must be replaced.

According to a further embodiment of the device according to the invention, the receiving element is designed as a heating element. With this heating element, the deformation tool located in its working position in the device can both be kept at operating temperature and brought to this.

Fig. 1

eine räumliche Teil-Darstellung der erfindungsgemässen Vorrichtung zum Verformen liegend ausgestreckter Buchdecken mit einem ersten Verformungswerkzeug, mit einem beispielhaften Stellantrieb und dessen Verbindungselementen zum Verformungswerkzeug,

Fig. 2

eine räumliche Darstellung eines zweiten Verformungswerkzeugs der erfindungsgemässen Vorrichtung, wobei der Stellantrieb und die Verbindungselemente weggelassen sind,

Fig. 3

eine Darstellung der Vorrichtung aus Fig. 1, mit abgenommenem Verformungswerkzeug,

Fig. 4

einen Querschnitt der in Fig. 1 dargestellten Vorrichtung, mit einem Gegenwerkzeug und einer verformten Buchdecke,

Fig. 5

einen Ausschnitt der erfindungsgemässen Vorrichtung mit dem zweiten Verformungswerkzeug, dem Gegenwerkzeug und einer zur Verformung bereitliegenden Buchdecke eines ersten Formats,

Fig. 6

einen Ausschnitt der erfindungsgemässen Vorrichtung entsprechend Fig. 5, jedoch mit einer gerundeten Buchdecke,

Fig. 7

einen Ausschnitt der erfindungsgemässen Vorrichtung analog Fig. 5, jedoch mit einer Buchdecke eines zweiten Formats,

Fig. 8

einen Ausschnitt der erfindungsgemässen Vorrichtung analog Fig. 7, jedoch mit einer gerundeten Buchdecke des zweiten Formats.

Fig. 9

Eine perspektivische Draufsicht auf eine erfindungsgemässe Vorrichtung, welche beispielhaft in eine Deckenzuführung integriert ist, die ihrerseits vier Vorwärmstationen für Verformungswerkzeuge aufweist.

The invention will be described in more detail with reference to an embodiment. Showing:

Fig. 1

3 shows a partial, partial view of the device according to the invention for deforming lying outstretched book covers with a first deformation tool, with an exemplary actuator and its connecting elements to the deformation tool;

Fig. 2

a spatial representation of a second deformation tool of the inventive device, wherein the actuator and the connecting elements are omitted,

Fig. 3

a representation of the device Fig. 1 , with removed deformation tool,

Fig. 4

a cross section of in Fig. 1 illustrated device, with a counter tool and a deformed book cover,

Fig. 5

a detail of the device according to the invention with the second deformation tool, the counter-tool and a book cover of a first format ready for deformation,

Fig. 6

a section of the inventive device accordingly Fig. 5 but with a rounded book cover,

Fig. 7

a section of the inventive device analog Fig. 5 but with a book cover of a second format,

Fig. 8

a section of the inventive device analog Fig. 7 but with a rounded book cover of the second format.

Fig. 9

A perspective top view of a device according to the invention, which is integrated by way of example in a ceiling feed, which in turn has four preheating stations for deformation tools.

The Fig. 1 shows a partial representation of an inventive device 1 for deforming lying outstretched book covers 2 ( Fig. 5 . Fig. 7 ), which are combined together, each with a straight back, not shown book block to a book, also not shown. Such a book cover 2 consists essentially of two lateral Book covers 3, 3 'and a the back of the book block receiving, referred to as the back region 4 middle part ( Fig. 4 to Fig. 9 ). The back region 4 may be provided on its inner side with a reinforcing, for example consisting of cardboard or waste paper insert 5. The book cover 2 has on both sides of the back region 4 in each case one of these with the book covers 3 connecting and in the finished book in each case an opening hinge forming fold region 6, 6 'on ( Fig. 4 to Fig. 8 ).

As in Fig.1 1, the device 1 is equipped with a first deformation tool 8, which is located in a working position 7 and also brought from a lowered into an excavated position, which is coupled to an actuator 9 embodied as a drive motor. As an actuator, of course, for example, spindle or worm drives can be used.

The Fig. 2 1 shows a second deformation tool 10 of the device 1, which is then coupled to the same actuator 9 when the horizontally extended book cover 2 located in the device 1 according to a current production order instead of a book cover 2 'with a straight back region 4' (FIG. Fig. 4 ) in a book cover 2 "with a round back area 4" ( Fig. 6 . Fig. 8 ) is to be deformed. When deforming with the first and the second deformation tool 8, 10, in each case the two fold areas 6, 6 'and, in the case of a book cover 2 provided for a round book block with the second deformation tool 10, also its back area 4 are deformed from the extended position such that the deformed book cover 2 ', 2 "is then suitable to be connected to a book block to a book.

As in Fig. 1 also shown, the first deformation tool 8 has two spaced apart, perpendicular and aligned parallel to the back region 4 of the book cover 2 to be deformed first moldings 11, 11 '. The moldings 11, 11 'have at their lower end in each case a baseboard 12, 12', which in turn rest on a common tool bar 13 laterally displaceable and are connected to this non-positively or positively. In this way can the moldings 11, 11 'according to the required width of the back portion 4 of the book cover 2 are adjusted against each other.

The moldings 11, 11 'are provided on their underside, for example, with permanent magnets, not shown, or with switchable and disconnectable electromagnets which generate on the top of the ferrous tool bar 13 relatively large forces of attraction. These attractive forces ensure intimate contact between the upper side of the tool bar 13 and the moldings 11, 11 ', so that good heat transfer into the moldings 11, 11' is ensured.

The tool bar 13 has approximately the length of the moldings 11, 11 'and the baseboards 12, 12' and is wider than the required for the largest to be deformed with the device 1 book cover 2 distance of the moldings 11, 11 '. The tool bar 13 located in its working position 7 like the first forming tool 8 rests on a receiving element 14 of the device 1. The actuator 9 is arranged laterally to an imaginary, vertical plane through a longitudinal central axis 15 of the tool bar 13 ( Fig. 3 ). The moldings 11, 11 'are arranged symmetrically to the longitudinal central axis 15 of the tool bar 13 and formed symmetrically to this longitudinal central axis 15 adjustable.

The at least approximately over the height of a book cover extending first deformation tool 8 is in its lowered position initially below and spaced from one of the book cover 2 serving for deformation and in Fig. 4 shown support plane 16, which is arranged transversely to the conveying direction of the book block a downstream of the device 1, the connection of the book block with the deformed book covers 2 ', 2 "serving, not shown hanging machine runs.

The device 1, in addition to the respectively located in the working position 7 and on an inner side 17 of the back portion 4 ', 4 "to be deformed book cover 2' directed deformation tool 8, 10 also above the forming tool 8, 10 arranged, cooperating with this and on a The counter-tool 19 has two mutually spaced, perpendicular and parallel to the back region 4 of the book cover 2 to be deformed aligned Gegenformleisten 20, 20 '(FIG. Fig. 4 ). These are also formed according to the required width of the back portion 4 of the book cover 2 to each other adjustable.

Corresponding Fig. 2 the second deformation tool 10 has a fixed, in the direction of the counter tool 19 (FIG. Fig. 5 ) aligned, rounded Mittenformsteg 21 and two second, laterally of the Mittenformstegs 21 arranged according to the rounding and the width of the back portion 4 of the book cover 2 to be deformed laterally adjustable and also aligned in the direction of the counter tool 19, rounded, outer moldings 22, 22 'on , The center forming web 21 is formed symmetrically and, in a region facing the tool bar 13, has on both sides a respective recess 23, 23 'for at least partially receiving the outer moldings 22, 22'. The latter are formed symmetrically to a longitudinal central axis 24 of the central forming web 21 adjustable.

Analogous to the moldings 11, 11 'of the first deformation tool 8 and the outer moldings 22, 22' of the second deformation tool 10 are provided on its underside, for example, with permanent magnets, not shown, or with switchable and disconnectable electromagnets which on the top of the iron-containing tool bar thirteenth generate relatively large attractions. These attractive forces ensure intimate contact between the upper side of the tool bar 13 and the outer moldings 22, 22 ', so that a good heat transfer to these moldings 22, 22' and thus also to the book cover 2 to be deformed is ensured. In addition to the attractive forces described, two end-side guides 25, 25 'can absorb the process forces when deforming the respective book cover 2. For this purpose, two protuberances 26, 26 'of each of the two end-side guides 25, 25' penetrate into end-side grooves 27, 27 'of the outer moldings 22, 22' and keep them in contact with the tool bar 13. The adjustment the two end-side guides 25, 25 'can be dimensioned so that they withstand a thermal expansion of several hundred degrees without interference and a smooth movement of the outer moldings 22, 22' not counteract.

In order to deform the fold areas 6, 6 'of the book cover 2 provided on both sides of the back region 4, the respective deformation tool 8, 10 together with the tool bar 13 is initially lifted against the above-arranged counter tool 19 or its counterform moldings 20, 20' and thereby with the moldings 11 , 11 'or with the center forming web 21 and the outer moldings 22, 22' a back web 28 of the book cover 2 ', 2 "formed., The curves of the Mittenformstegs 21 and the outer moldings 22, 22' of the second deformation tool 10 additionally provide the rounding of the back portion 4 "of the book cover 2" corresponding to the roundness of the spine of an associated book block.

Fig. 3 shows a partial representation of the inventive device 1 with removed deformation tool 8, 10. This serves as a management level smooth support surface 29 of the tool bar 13 can be seen, which has good sliding properties for each located in its working position 7, not shown here, deformation tool 8, 10 , As can be seen, the tool bar 13 also serves to accommodate rotary bodies, for example, vertical axes of rotation 30, 30 'drivable discs 31, 31', which are mounted in spaced along the tool bar 13 recesses 32, 32 'of the tool bar. The disks 31, 31 'have on their side facing the working tool 7 in the deformation tool 8, 10 aligned side relative to the respective axis of rotation 30, 30' opposing drivers 33, 34, 33 ', 34'.

The discs 31, 31 'are countersunk in the tool bar 13 so that they do not touch the deformation tool 8, 10 located in the working position 7. The deformation tools 8, 10 have in their resting on the tool bar 13 Side respectively parallel to the axis of rotation 30, 30 'of the discs 31, 31' aligned recesses 35, 35 ', which are at least partially penetrated by the trained example as studs drivers 33, 34, 33', 34 '. Shown is only the corresponding interaction in each case one of the drivers 34, 34 'with the recesses 35, 35' of in Fig. 1 Of course, the rear baseboard 12 has corresponding, but here concealed recesses 35, 35 ', in which in each case one of the drivers 33, 33' engages.

So that an optimally effective, mutually oppositely directed side stroke of the skirting boards 12, 12 'associated moldings 11, 11' of the first deformation tool 8 and the outer moldings 22, 22 'of the second deformation tool 10 can be achieved, the drivers 33, 34, 33 ', 34' of a disc 31, 31 'in a starting position, for example at an angle of approximately 45 ° to the longitudinal central axis 15 of the tool bar 13 diametrically opposite aligned ( Fig. 3 ). The rotational movements of the disks 31, 31 'are realized by means of a slide 37 of a sliding device 38 which is fastened to the circumference of each disk 31, 31' and laterally projects beyond the tool beam 13, by means of a slide 37 of a sliding device 38 which is connected to a drive cam 39. This ensures a uniform change in the distance between the moldings 11, 11 'of the first deformation tool 8 and the outer moldings 22, 22' of the second deformation tool 10. The adjustment or adjustment of this distance can be done by means of motor or manual power. To increase the accuracy, a controller connected to a controllable motor can also be used.

The movement cams 36, 36 'projecting on one side of the tool bar 13 are connected by means of joints 40, 40' or lateral guides to the slide 37 which is displaceably mounted on a frame 41 of the device 1 and displaceable back and forth. By a common rotation of the discs 31, 31 ', the drivers 33, 34, 33', 34 'respectively move inwardly or outwardly and thereby reduce or enlarge the distance between the moldings 11, 11' of the first deformation tool 8 or between the outer moldings 22, 22 'of the second deformation tool 10.

Thus, the moldings 11, 11 'of the first deformation tool 8 and the outer moldings 22, 22' of the second deformation tool 10 when rotating the discs 31, 31 'not mutually shift in their longitudinal direction, is between the tool bar 13 and the respectively in Working position located forming tool 8, 10 a directed transversely to the longitudinal extent of the first guide assembly 42 is provided, for example, a transverse to the longitudinal extent of said components groove 42 'in the tool bar 13 and an engaging pin 42 "( Fig. 1 ) or the like. Of the deformation tool 8, 10 has. In this way, it is ensured that the moldings 11, 11 'and the outer moldings 22, 22' exclusively transverse to the longitudinal extension of the respective forming tool 8, 10 are adjustable. This represents an alternative solution to the previously described, end-side guides 25, 25 '.

Fig. 4 shows a cross section of the equipped with a first deformation tool 8 and a counter tool 19 device 1 and an already deformed book cover 2 'with a straight back portion 4' and with the two deformed fold areas 6, 6 '. Shown here is the arrangement of the also associated with the frame 41 deformation tool 8 and connected via the slider 37 with the deformation tool 8 sliding device 38. The drive with the discs 31, 31 ', flat downwardly extending slide 37 has a second guide assembly 43rd on ( Fig. 3 ), which allows its displacement parallel to the longitudinal extent of the tool bar 13. The second guide assembly 43 has two extending in this direction, spaced from each other arranged slots 44, 44 'and each one attached to the frame 41, the slots 44, 44' associated and immersed in this sliding block 45, 45 ', where the slide 37th is moved back and forth.

Between the oblong holes 44, 44 'is a bottom-up reaching slot-like opening 46 ( Fig. 1 . Fig. 3 ) for the trained as a driver drive cam 39 is provided which is indirectly connected to the actuator 9. The opening 46 permits lifting and lowering of the first deformation tool 8 connected to the frame 41.

Like that Fig. 1 . 3 and 4 can be removed, it is the illustrated actuator 9 is a geared motor whose output shaft 47 is formed as a spindle. The output shaft 47 intermeshes a spindle nut of a guided on a rod 49 in the direction of the sliding movements of the slider 37 actuator 48 to which the drive cam 39 is attached. For storage of the output shaft 47 connected to the frame 41 bearing plate 50 and a bearing block 51 are provided. Instead, of course, a rack and pinion gear can be provided as an actuator.

Corresponding Fig. 4 Lifting of the first deformation tool 8 via a connected to the receiving element 14 of the tool bar 13 console 52, which cooperates along a fixed to the frame 41 of the device 1 guide rod 53 with a known, not shown piston-cylinder unit or other lifting drive , By raising the first deformation tool 8, the back region 4 'of the book cover 2' with the two spaced-apart moldings 11, 11 'between the opposing Gegenformleisten 20, 20' of the counter tool 19 a back ridge 28 is raised and formed under the influence of heat. In this case, the fold areas 6, 6 'on both sides of the back region 4' are also deformed into opening hinges. The arranged below the tool bar 13 receiving element 14 is designed as equipped with heating elements 54 heating element, of which the heat on the tool bar 13, the baseboards 12, 12 'and finally on the moldings 11, 11' on the deformed back portion 4 ' the book cover 2 'is transferred to hold the deformation tool 8 to operating temperature.

For precise positioning of the deformation tool 8, 10, for example, a centering device 75 connected to the receiving element 14 with a conical positioning pin 55 is provided (FIG. Fig. 1 . Fig. 3 ), which under spring pressure in a designated bore 56 ( Fig. 2 ) is engaged on the front side of the tool bar 13.

For the further embodiment of the drive and the connecting elements to the deformation tools of the device 1 is at the above-mentioned EP2325020 A1 referred, which in this regard is to be understood as an integral part of the device 1.

The Fig. 5 shows a section of the device 1 with the located in its working position 7 second deformation tool 10, with the Gegenformleisten 20, 20 'of the counter tool 19 and on inner support members 57, 57' of a ceiling feed 58 (FIGS. Fig. 9 The second deformation tool 10 is still in its lowered position, ie below the support plane 16 and is thus spaced from the book cover 2. In this position, the second deformation tool 10 to a width 59 of the insert 5 of the back region 4 of Book cover 2 set. For this purpose, the outer moldings 22, 22 'of the second deformation tool 10 on the support surface 29 ( Fig. 3 ) of the tool bar 13 according to the width 59 of the insert 5 further into the recesses 23, 23 'of the central forming web 21 into or further out of these recesses 23, 23' out. By setting the outer width 60 of the outer moldings 22, 22 ', the shape or the equivalent radius of the second deformation tool 10 is determined.

The Fig. 6 shows the second deformation tool 10 in his meantime by a hub 61 from the in Fig. 5 shown position raised upward position. The stroke 61 is dependent on the thickness of the respective book block and the associated book cover 2 and is calculated by a machine control, not shown, and transferred to the second deformation tool 10 as described above for lifting the first deformation tool 8. To deforming the insert 5 and thus the now rounded back portion 4 "of the book cover 2" from its original width 59 to a projected width 59 'a back web 28 has shortened forming, with inner edges of the Gegenformleisten 20, 20' with outer edges of the insert 5 complete , The projected width 59 'of the insert 5 thus corresponds to a thickness of the associated, rounded and pressed book block.

Analogous to Fig. 5 show the Fig. 7 a section of the device 1, with the, also in its lowered position of the working position 7 located, second deformation tool 10, with the Gegenformleisten 20, 20 'of the Gegenwerkzeugs 19, but with a ready for deformation, to a rounded and pressed-book block with another Thick belonging book cover 2 with a different format. The second deformation tool 10 is therefore set to a width 62 of a different format insert 5 'of the back portion 4 of the book cover 2 also having a different format. The new shape or the equivalent radius of the second deformation tool 10 is set by a corresponding displacement of the outer moldings 22, 22 'on the tool bar 13 to a second outer width 63. Opposite the representation in Fig. 5 For this purpose, the outer moldings 22, 22 'symmetrically to the longitudinal central axis 24 of the central forming web 21 have been adjusted to the outside.

Analogous to Fig. 6 show the Fig. 8 that, however, accordingly Fig. 7 set second deformation tool 10 in its meantime by a stroke 64 from the in FIG. 7 shown position raised upward position. After deformation, the insert 5 'of the back region 4, which has a different format, and thus the now rounded back region 4 "of the book cover 2" has been shortened from the original width 62 to a projected width 62', inner edges of the counter-molding strips 20, 20 'likewise being shortened with outer edges of the insert 5 'complete. The stroke 64 of the second deformation tool 10 is as for Fig. 6 calculated and set automatically.

Fig. 9 shows a perspective plan view of an inventive device 1 and two for different thickness classes of spine areas 4 of the book covers to be deformed 2 suitable first deformation tools 8, 8 'and two for different thickness classes of back regions 4 of the book covers 2 to be deformed second deformation tools 10th , 10 '.

The device 1 is integrated by way of example into the ceiling feed 58 of a book production line 65 which is merely indicated here. In this illustration, the device 1 is therefore largely covered by the ceiling feed 58 and the book covers 2 located thereon. Thereby are in Fig. 9 from the device 1 only the counter tool 19 with a suspension 66 in a machine frame 67 of the ceiling feed 58 and a recorded in its working position 7 in the device 1 second deformation tool 10 can be seen.

Also integrated into the ceiling feed 58 are four preheating stations 68, 68 ', 69, 69', ie a separate preheating station 68, 68 ', 69, 69' for each forming tool 8, 8 ', 10, 10'. During operation of the device 1, one of the deformation tools 8, 8 ', 10, 10' is always installed in the device 1. Corresponding Fig. 9 is the second deformation tool 10 in the device 1, while the two first deformation tools 8, 8 'and the other second deformation tool 10' are each in a preheating station 68, 68 ', 69' and just warmed up or at their set temperature wait for their next assignment. You are thus in a rest position 7 '.

Likewise, a preheating station 69 is provided for the second deformation tool 10 built into the device 1, which, however, is currently empty. Empty preheat stations 68, 68 ', 69, 69' can be set directly by the machine operator or by a controller to a lower temperature. It is monitored which Vorwärmstationen 68, 68 ', 69, 69' are just empty and which deformation tool 8, 8 ', 10, 10' is thus in the device 1 and whether this deformation tool 8, 8 ', 10, 10' suitable for the current contract. The preheating stations 68, 68 ', 69, 69' may be constructed so that they are only suitable for receiving a specific deformation tool 8, 8 ', 10, 10'. In the example of Fig. 9 In the empty preheating station 69, only the deformation tool 10 currently in its working position 7 would then fit into the empty preheating station 69.

Even if this allows a faster format change of the book covers 2 to be formed, it is not necessary to arrange a separate preheating station 68, 68 ', 69, 69' for each deformation tool 8, 8 ', 10, 10'. In general, it is sufficient if the respectively to be transported in its working position 7 deformation tool 8, 8 ', 10, 10' from its rest position 7 'in a preheating station 68, 68', 69, 69 'can be removed.

To monitor which Vorwärmstationen 68, 68 ', 69, 69' are just empty and which deformation tool 8, 8 ', 10, 10' is thus in the device 1 and whether this deformation tool 8, 8 ', 10, 10' for the current order is suitable, a corresponding sensor 70 can be arranged. For example, the sensor 70 may be located in at least one of the preheat stations 68, 68 ', 69, 69' (FIGS. Fig. 9 ) or on the receiving element 14 for the tool bar 13 (FIG. Fig. 4 ) be attached.

According to Fig. 9 the deformation tools 8, 8 ', 10, 10' at one end of their tool bar 13 each have a lift hook 71. This serves to lift or install a deformation tool 8, 8 ', 10, 10' from or into its working position 7 or rest position 7 'by means of a hoist, also not shown.

Finally, the ceiling feed 58, in addition to the two inner support elements 57, 57 'also two outer support elements 72, 72' for the book covers 2, an auxiliary device 73 for insertion of book covers 2 and fuse strips 74, 74 'for preventing the lifting of the book covers 2 at Deformation process on.

Claims (14)

1. Device for forming a folding area (6, 6') lying adjacent to both sides respectively of a spine area (4) of outstretched book covers (2) or a spine area (4) and a folding area (6, 6') located on both sides respectively of the spine area (4) of outstretched book covers (2) corresponding to the shape of the back of a book block later on forming a book together with the book cover (2),

   

   with at least a first forming tool (8, 8') for a book cover (2) belonging to a block with a straight spine and with at least a second forming tool (10, 10') producing a rounding of the spine area (4) of the book cover (2) for a book cover (2) belonging to a block with a round spine,

   

   with an operating position (7) for one of the forming tools (8, 8', 10, 10') and with in each case an idle position (7') for the one or the other forming tools (8, 8', 10, 10'),

   

   with a counter tool (19) aligned to an outer face (18) of the spine area (4) of the book cover (2), which has two counterblock mouldings (20, 20') arranged at a distance from each other and are laterally adjustable corresponding to the width of the spine area (4) of the book cover (2), in which the forming tool (8, 8', 10, 10') is arranged in its operating position (7) directed to an inner face (17) of the spine area (4) of a book cover (2) lifting the spine area (4) of the book cover (2) between the two counterblock mouldings (20, 20') and in so doing forming a back ridge (28) of the book cover (2),

   

   with in each case a tool beam (13) locked by power or force-fit with the forming tools (8, 8', 10, 10'),

   

   with a pick-up element (14) for the tool beam (13) of the forming tool (8, 8', 10, 10') arranged in the operating position (7),

   characterised in that

   

   the device (1) has a single actuating drive (9) for the forming tool (8, 8', 10, 10') arranged in each case in the operating position (7),

   

   the tool beam (13) of the forming tool (8, 8', 10, 10') arranged in each case in the operating position (7) is designed to be coupleable with the single actuating drive (9), and

   

   each forming tool (8, 8', 10, 10') has two laterally adjustable shaping strips (11, 11', 22, 22') spaced apart from each other, which are respectively designed to be concertedly adjustable, altering their mutual distance.
2. Device according to claim 1, characterised in that the actuating drive (9) is laterally arranged to an imaginary vertical plane along a longitudinal central axis (15) of the tool beam (13) in its operating position (7).
3. Device according to claim 1 or 2, characterised in that at least one preheating unit (68, 68', 69, 69') is arranged for at least one of the forming tools (8, 8', 10, 10') that is in the idle position (7').
4. Device according to claim 3, characterised in that at least one preheating unit (68, 68', 69, 69') is arranged in or on the device (1) or in its vicinity.
5. Device according to claim 4, characterised in that a distinct preheating unit (68, 68', 69, 69') is arranged for each forming tool (8, 8', 10, 10').
6. Device according to one of the claims 1 to 5, characterised in that at least one sensor (70) is arranged to identify the forming tools (8, 8', 10, 10').
7. Device according to claim 6, characterised in that at least one sensor (70) is arranged in at least one of the preheating units (68, 68', 69, 69').
8. Device according to claim 6, characterised in that at least one sensor (70) is arranged on the pick-up element (14) for the tool beam (13).
9. Device according to one of the claims 1 to 8, characterised in that the at least one first forming tool (8, 8') has two shaping strips (11, 11') spaced apart from each other, which are arranged to be laterally adjustable corresponding to the width of the spine area (4) of the book cover (2).
10. Device according to one of the claims 1 to 9, characterised in that the at least one second forming tool (10, 10') has a stationary central forming bar (21), which is rounded in the direction of the counter tool (19) and has two outer shaping strips arranged laterally to the central forming bar (21) (22, 22'), which are laterally adjustable corresponding to the rounding and the width of the spine area (4) of the book cover (2), and are likewise rounded in the direction of the counter tool (19).
11. Device according to claim 10, characterised in that the central forming bar (21) is designed to be symmetrical and has a recess (23, 23') in an area facing the tool beam (13) in each instance on both sides for at least partial admission of the outer shaping strips (22, 22').
12. Device according to claim 11, characterised in that the outer shaping strips (22, 22') are designed to be symmetrically adjustable to a longitudinal central axis (24) of the central forming bar (21).
13. Device according to one of the claims 1 to 12, characterised in that at least two in each case suitable initial forming tools (8, 8') and at least two in each instance suitable second forming tools (10, 10') for different thickness classes of spine areas (4) of the book cover (2) to be shaped are arranged.
14. Device according to one of the claims 1 to 13, characterised in that the pick-up element (14) is designed as a heating element.

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