EP1955867B1 - Device for pressing and joint creasing book with book transport - Google Patents

Description

The invention relates to a Buchform- and -pressmaschine for pressing and rebating of books according to the preamble of claim 1.

After hanging the book block in the book cover is achieved by pressing the book a wrinkle-free and permanent bonding of the attachments of the book block with the inner sides of the book cover. In industrial book production, this operation of all-pressing takes place on so-called book forming and pressing machines in combination with the folding incineration, in which the book cover folds are shaped and glued.

In the DE 44 22 783 A1 is a Buchform- and -pressmaschine described, in which a number of pressing devices are arranged on a rotor about an axis of rotation intermittently driven rotor, with quasi tangentially arranged on the rotor circumference pressure plates. The Falzeinbrennvorrichtungen with the heated seam forming rails are located on the pressing devices and are moved along with these together. The books are recorded permanently from the import to the export in one and the same press device over the entire surface. The seam forming rails can be kept closed continuously.

In the export fall after opening the press plates, the books with their backs on a positioned under the pressing device stamp, with which the books are first conveyed in the vertical direction down, then laid down under support by a rake and pushed by the punch on a driven roller conveyor to become.

Especially with light books with "sticky" book cover (for example, a plastic cover) there is a risk that the books adhere to the press plates and not fall out of the press in time, with the result of stoppers and other disturbances in the production process. On the other hand, with heavy books, deformations of the newly formed spine of the book can occur if they fall down onto the stamp with their backs.

The invention has for its object to provide a Buchform- and -pressmaschine for press-fitting and rebating of books according to the preamble of claim 1, which allows a reliable and gentle execution of the books from the pressing devices.

This object is achieved in accordance with the invention in that the delivery device comprises a gripping tongs with a pair of mutually variable distance, the books in the shaped Buchdeckenfalzen detecting Falzklemmschienen with which the molded and pressed books from the pressing devices can be removed. The books are taken gripped the pressing devices, whereby very short execution times are feasible. A temporally undefined falling down on downstream transport systems does not take place. The export is also gentle on the product. The books are securely released from the press plates upon detection by the inwardly directed rabbic rail movement, and then pulled out of the press devices, so that even books with adhesive cover slip are reliably performed.

The dependent claims define preferred embodiments of the book export of the book forming and pressing machine according to the invention.

In the gripped removal, the pressing devices can be controlled in a guide position with minimally open pressure plates, whereby the books are guided laterally and spreading of the book cover is prevented when detecting the book cover rebates.

For lateral support of the book cover after the exit of the books from the press plates, at least the near-false side portions of the books may be supported by guide elements. Preferably, the guide elements are designed as supported on the gripper, from a retracted position in a support position back and forth movable support rails.

For easy gripping of the shaped book cover folds by the gripper pliers, the folding form rails of the folding inciner can be controlled in a correspondingly large distance to the spine of the book, while the pressing device is still closed.

It is advantageous if the Falzklemmschienen gripper grab with a definable pressing force in the book cover rebates, creating a controlled reshaping or

Stabilization of the burned Buchdeckenfalze is possible. With the advantage of a particularly effective stabilization of the formed by heat Buchdeckenfalze, along with a permanent bonding of the book cover with the book block the Falzklemmschienen the gripper can be cooled.

Preferably, the removal of the books by the gripper tongs substantially transversely to the hemming rails in a plane parallel to the press plates down from the pressing devices, whereby the books are faster removable because of the shorter format width. In addition, the book removal is supported by the weight of the books.

Preferably, the gripper tongs is pivotable about an axis oriented perpendicular to the press plates, driven back and forth. It is advantageous if a subsequent transport system takes over the books in a vertical position of the gripper tongs, so that a product-gentle onward transport is given.

Fig. 1

in schematisch vereinfachter Perspektivansicht eine Buchform- und -pressmaschine mit einer Ausführstation mit einem in die Entnahmeposition schwenkenden Buchgreifer;

Fig. 2

die Buchform- und -pressmaschine mit der Ausführstation wie in Fig. 1 gezeigt, im Moment der Entnahme eines Buch;

Fig. 3

die Buchform- und -pressmaschine in einer schematischen Seitenansicht;

Fig. 4a,b

eine Schnittansicht von der Ausführstation gemäß Schnittverlauf IV in Fig. 3 in verschiedenen Entnahmephasen.

The features of the present invention will be explained in the following description of a preferred embodiment with reference to the accompanying drawings listed below. Show it

Fig. 1

in a schematically simplified perspective view of a Buchform- and -pressmaschine with a Ausführstation with a pivoting in the removal position book gripper;

Fig. 2

the book forming and pressing machine with the execution station as in Fig. 1 shown at the moment of taking a book;

Fig. 3

the Buchform- and -pressmaschine in a schematic side view;

Fig. 4a, b

a sectional view of the execution station according to section line IV in Fig. 3 in different extraction phases.

In a book-hanger bookblocks are connected with book covers to books 1. The Bucheinhängemaschine is a Buchform- and -pressmaschine 40 downstream, in which with the pressing of the book 1 a wrinkle-free and permanent bonding of the attachments of the book block is achieved with the inner sides of the book cover. This operation of the whole pressing is done in combination with the Falzeinbrennen, in which the Buchdeckenfalze 1 c are formed and glued.

The book forming and pressing machine 40 selected for the representation of a delivery station 45 according to the invention consists of a multiplicity of pressing devices 41 arranged on an intermittently driven rotor 40.3, wherein the axis of rotation 40.4 of the rotor 40.3 is oriented perpendicular to the pressing devices 41 and extends horizontally, so that the pressing devices 41 rotate virtually overhead in a vertical plane. The respective pressing devices 41 are fixedly assigned to folding-incinerating devices 42, whose folded-forming rails 42.1 extend substantially radially to the rotor axis of rotation 40.4.

The book forming and pressing machine 40 is designed to ensure that the books 1 are constantly received in one and the same pressing device 41 and that the 42. Heated by heating rods 42.2 Falzformschienen 42.1 can be kept constantly closed for a gentle Falzeinbrennen.

The pressing devices 41 are formed from a pair of pressing plates 41.1 which are opposite one another with a variable spacing and which are accommodated symmetrically in the center of an open position 41.11, guide position 41.12 and a clamping position 41.13. The actuating arms 41.2 are guided in a guide rail 41.3 fastened to the rotor 40.3. The control means for actuating the actuating arms 41.2 and thus the pressing plates 41.1 may be pneumatic, hydraulic or electric drive means or engage in corresponding mechanical control cams. For the sake of clarity, a concrete execution and representation in the figures has been omitted.

The seaming mold rails 42.1 of the seaming devices 42 are accommodated on actuating arms 42.3, which are displaceably guided in guide rails 42.4 fastened to the rotor 40.3 and can be actuated by control means, not shown, for forming, holding and / or releasing the bookcase seams 1c by the seaming mold rails 42.1. In the release position, the Falzformschienen 42.1 at a large distance to the spine, whereby a feeding and Wegführ the books 1 in the plane of movement of the pressing devices 41 is made possible.

Due to the intermittent rotor movement, the possibility arises in stationary positions of the pressing devices 41 with stationary workstations on the books 1 act, for example, for feeding, aligning, reshaping, press-fitting, running, etc.

A feeding and alignment station 43, the books 1, which are laid out from the book hanger in a vertical position and upwardly facing back 1a, passed with a reciprocating pincers 30, the books turned 1 and with her back 1 a directly be placed on an alignment table 43.1 of the feed and alignment station 43. The books 1 are already within one Pressing device 41, which is initially controlled in the open position 41.11 and after swinging out of the book pliers 30 is closed in the guide position 41.12, to form a defined guide channel with close guidance for the books to be aligned. 1

With the raising of the alignment table 43.1 in an alignment position, a mold rail 43.5 lowers on the front section 1 b of the book 1, which presses the book block after detecting the book cover rebates 1 c by the Falzformschienen 42.1 with an increased pressure force in the book cover back and nachformt, the Alignment table 43.1 possibly minimally lowered.

After completion of the alignment and Nachformvorganges the mold rail 43.5 is moved upwards out of the press plates 41.1 and the pressing device 41 is controlled in its clamping position 41.13, in which the books 1 are already exposed to a certain total pressure and / or are kept safe at least for the rotary transport , In addition, the heated seam forming rails 42.1 are closed with increased pressure to form the book cover seams 1c. The moment the forming rail 43.5 lifts from the front section 1b of the books 1, the rotor movement can begin to continue the pressing devices 41 by one position at a time.

During their intermittent circulation, the pressing devices 41 pass through a pressing station 44, in which an increased pressing force can be applied externally to the pressing plates 41.1 during the rotor standstill, for the actual complete pressing of the books 1.

Finally reach the pressing devices 41, the inventive execution station 45, in which the books 1 the pressing devices 41 are removed again. It has a book gripper 45.1, which is pivotable about a pivot axis 45.3 back and forth, which is symbolized in the figures by corresponding movement arrows. The books 1 are detected in the book cover crease 1 c with left and right, for example. By pressure cylinders 45.7 operated Falzklemmschienen 45.4, 45.5 and pulled out of the guide position 41.12 controlled pressing devices 41, for transfer to a delivery position 45.11.

The two Falzklemmschienen 45.4 and 45.5 have a the burned book cover crease 1 c corresponding cross-section, whereby a Nachformung or stabilization of Buchdeckenfalze 1 c while running the books 1 from the pressing devices 41 is made possible. The intensity of the reshaping can be influenced by adjusting the pressure of the pressure cylinder 45.7.

By constant cooling of the Falzklemmschienen 45.4, 45.5 a particularly effective stabilization of the formed by heat Buchdeckenfalze 1 c is achieved, along with a permanent bonding of the book cover with the book block. In the exemplary embodiment, the cooling takes place with a (vortex tube) cooling nozzle 45.8, which supplies the Falzklemmschienen 45.4, 45.5 cooled air.

A picking process is described below: During the transport of a pressing device 41 into the export station 45, the book gripper 45.1, following the pressing device 41, virtually pivots into the corresponding removal position in which the pressing device 41 is oriented inclined relative to the horizontal with respect to the associated folding incinerator 42.

The folding form rails 42.1 are meanwhile withdrawn in order to allow the Falzklemmschienen 45.4, 45.5 of the book gripper 54.1 access to the Buchdeckenfalzen 1 c, while the pressing plates remain 41.1 initially controlled in clamping position 41.13. The detection of the Buchdeckenfalze 1 c then takes place in said removal position reliably and accurately in the common standstill of pressing device 41 and book gripper 45.1 (see Fig. 4a ).

The press plates 41.1 are opened in the guide position 41.12 and the book gripper 45.1 pulls the pressed and falzeing burned book 1 under lateral support by the press plates 41.1 from the respective pressing device 41. This could already take place a further transport of the pressing device 41, so that only a very small downtime Removal of books 1 is required. For further support of the book covers 45.6, 45.5 recorded support rails are pivotally 45.6 from a retracted position in a corresponding support position controlled (see Fig. 4b ).

The extracted book 1 is in the delivery position 45.11, in which the book 1 with respect to his back 1 a only slightly inclined to the horizontal oriented, transferred in a vertical position to a further conveyor 46 and toward book height of the book forming and -pressmaschine 40th led away. In the further conveyor 46 may be, for example, to a clamping belt conveyor, with an openable and closable, the books 1 in the delivery position 45.11 receiving conveyor section 46.1 and a helically extending conveyor section for laying down the books 1, which in Fig. 2 symbolized by a helical transport arrow.

LIST OF REFERENCE NUMBERS

1

book

1a

move

1b

front section

1c

fold

30

book gripper

40

Book forming and pressing machine

40.3

rotor

40.4

axis of rotation

41

pressing device

41.1

press plate

41.2

actuating arm

41.3

guide rail

41.11

open position

41.12

leadership

41.13

clamping position

42

joint forming device

42.1

Falzformschiene

42.2

heater

42.3

actuating arm

42.4

guide rail

43

Feeding and alignment station

43.1

alignment table

43.5

forming rail

44

pressing station

45

outfeed

45.1

book gripper

45.3

swivel axis

45.4

Left rebate clamping rail

45.5

Right folding clamp rail

45.6

support rail

45.7

pressure cylinder

45.8

cooling nozzle

45.11

stacking position

46

Next conveyor

46.1

(Handover) conveyor section

Claims (10)

1. A device (40) for pressing and joint creasing books (1),

   • with a multitude of pressing devices (41) that respectively feature a pair of opposite pressing plates (41.1), the distance between which can be varied, wherein said pressing plates serve for exerting a full-surface pressing force generated by pressure means upon the sides of the book (1),

   • with joint creasing devices (42) that respectively are firmly allocated to the pressing devices (41) and respectively feature a pair of opposite heated joint creasing rails (42.1), the distance between which can be varied, wherein said joint creasing rails serve for creasing the case joints (1 c), and

   • with devices for infeeding and aligning the book blocks cased into cases and for delivering the creased and pressed books (1) into and from the respective pressing device (41),
   characterized in

   • that the delivery device features a book gripper (45.1) with a pair of opposite joint gripping rails (45.4, 45.5) that take hold of the books (1) in the creased case joints (1c) and the distance between which can be varied, wherein the creased and pressed books (1) can be removed from the pressing devices (41) with said book gripper.
2. The device according to Claim 1, characterized in that the gripped removal takes place while the pressing devices (41) are set into a guiding position (41.12), in which the pressing plates (41.1) are minimally opened in order to laterally guide the books (1).
3. The device according to Claim 1 or 2, characterized by guide elements (45.6) that laterally support at least the lateral regions of the books (1) near the joints after the books are released from the pressing plates (41).
4. The device according to Claim 3, characterized in that the guide elements are realized in the form of support rails (45.6) that are received on the book gripper (45.1) and can be moved back and forward between a retracted position and a supporting position.
5. The device according to one of Claims 1 to 4, characterized in that the joint creasing rails (42.1) of the joint creasing device (42) are set to a correspondingly large distance from the book spine in order to enable the book gripper (45.1) to take hold of the creased case joints (1c).
6. The device according to one of Claims 1 to 5, characterized in that the joint gripping rails (45.4, 45.5) of the book gripper (45.1) take hold of the case joints (1c) with a definable pressing force.
7. The device according to one of Claims 1 to 6, characterized in that the joint gripping rails (45.4, 45.5) of the book gripper (45.1) are cooled.
8. The device according to one of Claims 1 to 7, characterized in that the book gripper (45.1) downwardly removes the books (1) from the pressing devices (41) essentially transverse to the joint creasing rails (42.1), namely in a plane that lies parallel to the pressing plates (41.1).
9. The device according to one of Claims 1 to 8, characterized in that the book gripper (45.1) can be driven such that it moves back and forward and pivots about an axis (45.3) that is oriented perpendicular to the pressing plates (41.1).
10. The device according to one of Claims 1 to 9, characterized by a transport system (46) that receives the books (1) from the book gripper (45.1) in a vertical position.

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