EP2650138B1 - Book moulding and pressing machine - Google Patents

Description

Technical area

The invention relates to a book forming and pressing machine according to the features of the preamble of claim 1.

State of the art

Known book production lines add one book block and one book cover to a book, one after another. For one of the last manufacturing steps, a book forming and pressing machine is used, as for example from the DE 4422783 A1 has become known.

From this document, therefore, a book forming and pressing machine has become known, which has a number of pressing devices arranged thereon with Falzeinbrenneinrichtungen, and are arranged on a rotor about an axis of rotation intermittently driven rotor.

The books themselves are inserted in an entry station in a pressing device in which they are taken over the entire surface and continuously formed on the burn-in bar, inserted and remain permanently in the same pressing jaw until they are led out again in the execution station.

Between feeding the book blocks suspended in blankets and making the formed and pressed books, the rotor makes some intermittent rotary movements which are used as a press-burn time.

In the loading station, the books are divided into two book streams, erected via a loader with associated guide bar to be subsequently transported under lateral support by the loader and a Gegenrechens equipped with prism bars loading table from below into the open, stationary pressing device. The prism bars have separate inserts for round or straight spines.

When changing the format of the books so it comes to changing the prism plates to machine downtime and set-up times, since for safety reasons, the entire machine is provided with a lining, which usually has to be removed first.

When changing from a straight to a round book block spine or when changing to a massively modified fitting, which can achieve improved rounding, this means that the machine must be emptied, the protective fairing opened, and the machines restarted ,

For straight books, there are different widths for the thin formats. These strips are then screwed in frame-fixed. For the wider formats two straight strips are exchanged, which are two plates arranged parallel to each other, in which the narrow longitudinal surfaces point upwards when installed.

According to the prior art, at least one of the plates is mounted fixed to the frame and the second plate is then moved by different feed means to a defined distance parallel to the first plate. The dimension between the two outwardly facing surfaces corresponds to the thickness of the book. The book lies with its back on the narrow longitudinal surfaces. With such a configuration, thicker books are therefore only on the outer area of the book block back on the bars.

document EP-A-194 2009 discloses a book forming and pressing machine according to the preamble of claim 1.

Presentation of the invention

The invention aims to remedy this situation. The invention, as characterized in the claims, the object is to propose a device which prismatic plates, also called prism plates, contains for round books and can be operationally detected by externally switchable elements books with straight spine, the two As a rule, different prismatic plates are operated from the outside, that is, one for round book block backs, the other for straight book block backs.

However, this switchability allows without further ado that both prism plate pairs can be used simultaneously for certain spine forms.

For this purpose, for example, the prism plates for round books on guide means which allow a vertical or quasi-vertical displacement of the other specific for straight spine elements, so that an externally triggered operational alternative of the system comes about.

It is therefore also an object of the invention to propose a book forming and pressing machine, which is equipped infrastructurally with at least one pressing device, said pressing device has pressing plates and Einbrennschienen. Furthermore, at least one charging device is provided, which has a loading table on which a book block is arranged so that it always faces the loading table with its back, with which the book forming and pressing machine operates according to a natural process flow.

The loading table itself generally has two horizontally spaced apart prism plates along the back of the book block, the vertical end surface of which is intended to support the book block. These prism plates have means which allow a height adjustment of alternative feed elements incorporated therein, wherein further means are provided which allow the spacing of the prism plates to each other.

The main advantage of the invention is thus to be seen in the fact that the externally initiated connection book block back conformed prismatic plates resp. Delivery elements and their also operable from the outside adaptation to the respective thickness of the book block, which is achieved by a primary change in the spacing of the prism plates to each other, a maximized flexibility in the production of differently configured books ensures.

In this case, the inventive system of prism plates is such that they can be adjusted to change the spacing from each other in a horizontal or quasihorizontaler direction, and the prism plates are further constructed so that the conversion of a certain shape of the book block back to another without the action a fundamental holistic replacement of the necessary prism plates can take place. Further, the system also allows the parallelism of the spaced apart prism plates to also be changed as needed.

According to the invention, the prism plates are thus designed such that at least one pair thereof is in operative connection with autonomously operable feed elements, such that the feed elements can perform an independent translational movement at least in the vertical direction, and these feed elements integrated into the prism plates are activated in each case if a change of the book spine forms to be processed is pending.

In summary, it is accordingly provided according to the invention to provide a first pair of spaced-apart priming plates whose horizontal or quasi-horizontal end surface faces the back of the book block to be processed and is designed accordingly. In a round book block back form these prism plates are usually narrow to lip-shaped, with their free book-side ends are usually in operative connection with the auszuformenden spine, ie usually assume a support function against the auszuformenden book.

The spacing of these prism plates to each other can be changed as needed, depending on the thickness of the book to be processed, so their impact can be optimally adjusted when editing the book block back.

Finally, each of these basic prism plate carries at least one height-adjustable delivery element, which is used when the assigned book block back form for processing, the base prism then meet only a carrier function against the Zustellelemente, because the plane of action over the book block is now from the exercised switched in the vertical direction Zustellelementen.

According to an advantageous embodiment of the book forming and pressing machine, the adjusting elements responsible for the connection of the feed elements are arranged on the outside of the basic prism plates, whereby the spacing of the prism plates relative to one another can be minimized.

It is further provided that a plurality of adjusting elements along the length of the prism plates can be arranged, which at the same time several Zustellelemente can be spent in the plane of action, which also has a positive effect on the bearing surface of the book block.

The essential advantage of the invention is also to be seen in the fact that each in the prism plate inlaid feed element has a rear side of the prism plate acting anvil-like element over which the anvil-like element by means of a switchable force element forcibly in one direction, here upwards, is moved. The force element is preferably operated pneumatically or hydraulically, wherein servo motors can also be used. It is also readily possible to provide a mechanical delivery.

If the return stroke of the force element initiated, the force dynamics is designed so that the feed element by its own weight back to the starting position falls back, which can be provided without further double-acting power deployments. The force element is installed in a support, which both take over the mechanical connection between the force element and the respective prism plate, and also ensures the supply of the force element with the respective working medium.

The prism plates are preferably traversed by thin channels, which connect the force element respectively mounted in the system via a respective branching line for providing a fluid with each other, and are also provided with a line which connects to a central power supply.

Now, if the prism plates supplied via the central supply by means of a control element with a working medium for power delivery, all built-in force elements turn up the standing in operative connection Zustellelemente. The smooth end surfaces of the raised delivery elements then form a straight plane which temporarily responds to the oblique surfaces of the prism plates. intermittently out of action. The individual prism plates with operative integration of the delivery elements can now be used for straight book block backs.

If the working medium is turned off again, the force element returns to its original position, the feed elements fall preferably by their own weight in the initial position. The oblique surfaces of the prismatic plates then take over their ancestral function, in such a way that books with rounded backs can be picked up again.

Brief description of the figures

Figur 1

eine perspektivische Darstellung der Buchform- und Pressmaschine gemäss einem Ausführungsbeispiel mit eingesetztem Buch mit einem runden Rücken, wobei die Buchform- und Pressmaschine verstellbare Elemente in einer Spitzstellung aufweist,

Figur 2

eine Seitenansicht auf die Buchform- und Pressmaschine aus Figur 1 ohne Nachformeinrichtung,

Figur 3

eine der Seitenansicht gem. Fig. 2 entsprechende, weitere Seitenansicht auf die Buchform- und Pressmaschine aus Figur 1 mit eingesetztem Buch mit einem flachen Rücken, wobei die Buchform- und Pressmaschine verstellbare Elemente in einer Flachstellung aufweist,

Figur 4

eine perspektivische Darstellung von Prismenplatten der Buchform- und Pressmaschine gemäss dem Ausführungsbeispiel der Figuren 1 bis 3 in separater Darstellung ohne Buch,

Figur 5

einen Schnitt durch eine der Prismenplatten aus Figur 4 mit den verstellbaren Elementen in der Spitzstellung und

Figur 6

einen der Figur 5 entsprechenden Schnitt durch die Prismenplatte aus Figur 4 mit den verstellbaren Elementen in der Flachstellung.

In the following, embodiments of the invention will be explained in more detail with reference to FIGS. All not necessary for the immediate understanding of the invention elements have been omitted. The same elements are provided in the various figures with the same reference numerals. It shows:

FIG. 1

3 is a perspective view of the book forming and pressing machine according to an embodiment with inserted book with a round back, wherein the book forming and pressing machine has adjustable elements in a pointed position,

FIG. 2

a side view of the book forming and pressing machine FIG. 1 without post-forming device,

FIG. 3

one of the side view gem. Fig. 2 corresponding, further side view of the book forming and pressing machine FIG. 1 with inserted book with a flat back, wherein the book forming and pressing machine has adjustable elements in a flat position,

FIG. 4

a perspective view of prism plates of the book forming and pressing machine according to the embodiment of FIGS. 1 to 3 in a separate presentation without a book,

FIG. 5

a section through one of the prism plates FIG. 4 with the adjustable elements in the top position and

FIG. 6

one of the FIG. 5 corresponding section through the prismatic plate FIG. 4 with the adjustable elements in the flat position.

Embodiments of the invention

The book forming and pressing machine according to Fig. 1-3 is intended to receive a book block 37, 38 between press plates 31, 32 on a loading table 62.

Out FIG. 1 is a between the press plates 31, 32 stretched book block 37 with a round back 39 recognizable. As a rule, the book forming and pressing machine, as they are from the FIGS. 1 to 3 shows, provided for vertical alignment of the book block 37, 38. However, the vertical orientation of the book forming and pressing machine shown here is not necessarily to be understood.

FIG. 1 shows from top to bottom, a post-forming device 1, a pressing device 30 and a charging device 60. The charging device 60 according to Fig. 2 mutually parallel prism plates 66, 67, which are spaced from each other.

Above the book block is in FIG. 1 to illustrate the installation situation and the function of the book forming and pressing machine the Nachformeinrichtung 1 with a vertically adjustable and rotatable tool carrier 5 with moldings 6, 7, 8 shown. The Nachformeinrichtung 1 resp. The infrastructure of the tool carrier 5 consists essentially, but not conclusively, of a guide rod 2, a guide carriage 3 and a support arm 4, whose functions unambiguously in the technical sense FIG. 1 emerge.

The prism plates 66, 67 are at their upper ends 80 (FIG. Fig. 2 ) facing the spine 39, and have an outwardly inwardly extending chamfer, which is also inclined inwards.

The measure of the spacing between the two prism plates 66, 67, plus the thickness of the two prism plates, corresponds to the thickness of the book, which at the same time says that thicker books rest on the prism plates only in the outer area of the book block spine.

From case to case tolerances are provided with respect to the set spacing of the two prism plates 66, 67 to each other, which ensure that the prism plates do not interfere with the press plates 31, 32 in the course of making the book.

If a press plate is provided stationary, it also forms the position for a first stationary prism plate. In the Fig. 1-3 It is shown that the pressing plate 31 is set as stationary. Then the parallel spaced second pressing plate 32 is displaceable and thus kept adjustable to the respective book.

For this purpose, the inner pressure plate 32 can be transverse to a back longitudinal axis and in particular horizontal (See Fig. 1 , Double arrow X) are moved. In a lower region of the pressing device 30, facing the book block back 39, on both sides of the book block 37 (FIG. Fig. 1 and 2 ), and 38 ( Fig. 3 ) Heating bars 33, 34 are arranged, which operate on the book block acting heating rails 35, 36.

The prism plates 66, 67 thus support the respective book block 37, 38 at least in a line below the burnishing rails 35, 36. The support is in the case of round book block back 39 usually not exactly linear, but such support is done over relatively small surface paths, since the book block back forming material has a certain flexibility. For straight book block spine (See Fig. 3 ) is more likely to be expected with a surface Aufläge the prism plates used for it.

The prism plates 66, 67, which now fulfill the function of base plates, each have outer arranged and adjustable in the vertical direction feed elements 71 (See, in particular Fig. 5 and 6 ), the commissioning of which leads to a height-wise superimposition of the base plates.

In short Fig. 4 received, these feed elements 71 are provided over the entire length of the respective prism plate 66, 67 in a regular sequence, with an irregular distribution is also possible. These Zustellelemente 71 are therefore effective along the length of the prism plates 66, 67 selectively, they are in vertical Direction driven within provided as slots guide channels 68, and they have inwardly the prism plates protruding supports, which serve to support the respective book block back. Further explanations Fig. 4 be supplementary to the description of the other Figures 5 and 6 consequences.

Analogous to the adjustment of the press plates in the horizontal direction for recording the book thickness (See Fig. 1 , Double arrow X) is here also an adjustment X1 of a prism plate 67 opposite the fixed prism plate 66 is provided, whereby it is also possible to make both prismatic plates autonomously adjustable.

This adjustment of a prism plate 67 to achieve the necessary spacing with respect to the other prism plate 66 via a loading table 62 which also carries the prism plates 66, 67, wherein this loading table is part of a charging device 60 (FIG. Fig. 1 ), which via a mechanism along the guide rod 61, the vertical delivery Y of the prism plates to the book block back and a carriage system 63, 64, 65, the horizontal delivery X1 of the prism plates takes over according to the thickness of the book.

In the Fig. 1 . 2 . 3 . 4 and 5 the delivery elements 71 are all retracted, ie they are not in use.

A detailed representation of the prism plates 66, 67 goes from the FIGS. 4 to 6 out.

The prism plates 66, 67 have at their upper ends 80 (FIG. Fig. 5 and in FIG. 6 only dashed recognizable) upwardly open, designed as slots guide channels 68 in which the adjustable feed elements 71 are movable, ie by a circuit lead the Zustellelemente 71 a vertical movement relative to serving as the base plates prism plates 66, 67 from.

The guide channels 68 are thus formed as slots 81 which completely penetrate the respective prism plate 66 within the length of such slots. On an inner side, the adjustable feed elements 71 are raised above the prism plate 66, that is, they protrude inwardly. At the appropriate location, the opposite prism plate 67 is also provided with recesses 69 for the respective adjustable feed element 71. Also with respect to these prism plate 67, these recesses 69 are the same direction and the same design as in the opposite prism plate 66th

Below each guide channel 68, a vertically or quasi-vertically aligned guide channel 82 is arranged in each case, which is in operative connection with a clamping plate 72, which serves as a securing element for the adjustable feed element 71, and at the same time ensures that this vertically along the inner surface of the respective prism plate 66, 67 remains movable.

Accordingly, the clamping disc 72 is mechanically coupled to the adjustable feed element 71, so that the interaction of the clamping disc 72 with the guide channel 82 limits the vertical mobility of the adjustable elements 71.

In order not to inhibit or render impossible the vertical movement of the clamping disks 72 with a minimized spacing of the prism plates 66, 67, the opposite prism plate at the opposite location has recesses 70 which are sufficiently large to reach zero even if the prism plates are spaced apart to ensure the functionality of the delivery elements.

Furthermore, the infeed element 71 has an outwardly acting anvil 73, over which by means of a switchable control element, designed here as a lifting cylinder 74, the feed element is forcibly pushed in one direction, here upwards, as is the case from the final state Fig. 6 evident. The lifting cylinder is operated pneumatically or hydraulically, briefly with a working medium. If the return stroke of this lifting cylinder 74 is initiated, so falls this delivery element 71 by its own weight back to the starting position. With double-acting lifting cylinders the provision is made. The lifting cylinder 74 is installed in a bearing block 75, which take over both the mechanical connection between the lifting cylinder 74 and the respective prism plate 66, 67, and also ensures the supply of the lifting cylinder 74 with the associated working medium.

The prism plates 66, 67 are traversed by thin air channels 77, which connect the lifting cylinders respectively mounted in the system via a respective branching line 76, as well as having a further line which is connected to the central pneumatic or hydraulic supply 78.

Now, if the prism plates 66, 67 supplied via the central supply 78 by means of a control element, here with an electrically switchable valve, with working fluid, all built-in lifting cylinder 74 switch their operatively connected feed elements 71 high. The smooth end surfaces of these Zustellelemente 71 now form a flat support surface 79 against the book block back (see Fig. 6 ) of a flat book, said delivery 71 according to Fig. 4 consist of 6 individual surfaces which the oblique surfaces 80 of the prism plates 66, 67 for a round book temporarily resp. intermittently put out of action. The individual prism plates 66, 67 with the additional feed elements 71 can now be used for straight book block backs.

If the working medium is turned off again, the lifting cylinders drive in and the elements preferably fall back into their initial position due to their own weight. The oblique surfaces of the prism plates 66, 67 come back into function and can therefore accommodate books with rounded backs.

Claims (19)

1. A book-forming and pressing machine, comprising a post-forming device (1), a pressing device (30) and a loading device (60), the loading device consisting of a loading table (62), and the pressing device consisting of a plurality of press plates (31, 32), spaced apart from one another, along with bum-in rails (35, 36), and the loading table being fitted with means which perform a supporting function in respect of the spine of a book block and are operatively involved in the forming thereof, whereas the means consist of at least one pair of prism plates (66, 67), which are spaced apart from one another and extend parallel or quasi-parallel to one another, characterized in that the prism plates each have at least one operatively connected engageable feed element (71), which is configured in such a way that, when engaged, it takes over the function of the prism plates in respect of a differently shaped book block spine.
2. A book-forming and pressing machine according to Claim 1, characterized in that the feed element (71) is engaged through an adjustment in height relative to the prism plates (66, 67).
3. A book-forming and pressing machine according to Claim 1, characterized in that the feed element (71) is height-adjustable on the inside of the prism plates (66, 67).
4. A book-forming and pressing machine according to one of the preceding claims, characterized in that the height adjustment of the feed element (71) comprises a vertical or quasi-vertical movement and is achieved by means which transmit a translational movement to each feed element (71) on the outside of the prism plates (66, 67).
5. A book-forming and pressing machine according to Claim 4, characterized in that the means for the translational movement of the feed element (71) are controlled mechanically, pneumatically, hydraulically or are motor-driven.
6. A book-forming and pressing machine according to one of the preceding claims, characterized in that the height of the feed element (71) is adjusted to at least the upper edge of the prism plate (66, 67).
7. A book-forming and pressing machine according to one of the preceding claims, characterized in that the prism plates (66, 67) consist of narrow, oblong bars.
8. A book-forming and pressing machine according to one of the preceding claims, characterized in that the gap formed by the spacing between the prism plates (66, 67) can be adjusted down to around zero.
9. A book-forming and pressing machine according to one of the preceding claims, characterized in that a number of feed elements (71) are disposed along the length of the prism plates (66, 67).
10. A book-forming and pressing machine according to one of the preceding claims, characterized in that the prism plates (66, 67) associated with the mounted feed elements (71) have a corresponding number of guide channels (68).
11. A book-forming and pressing machine according to one of the preceding claims, characterized in that the adjustable elements (71) of the opposing prism plates (66, 67) are offset relative to one another.
12. A book-forming and pressing machine according to Claim 11, characterized in that at least one of the prism plates (66, 67) has recesses (69), which are provided opposite the feed elements (71) of the other prism plate (66, 67) and ensure free movement of the feed elements (71).
13. A book-forming and pressing machine according to one of the preceding claims, characterized in that the prism plates (66, 67) and the feed element (71) have upper bearing surfaces (79, 80) which are operatively engaged in such a way as to conform to the particular shape of the book block spine (39).
14. A book-forming and pressing machine according to Claim 13, characterized in that the upper bearing surface (80) of the prism plate (66, 67) has an inward-extending bevelled edge (80) for a rounded book block spine (37).
15. A book-forming and pressing machine according to Claim 13, characterized in that the upper bearing surface (79) of the feed element (71) has a flat or quasi-flat surface (79) for a flat book block spine (38).
16. A book-forming and pressing machine according to one of the preceding claims, characterized in that the feed element (71) is coupled with a safety element (72), which functions as a limit stop in direction of movement.
17. A book-forming and pressing machine according to one of the preceding claims, characterized in that adjustability of the feed element (71) is achieved by a fluid-operated lifting cylinder (74).
18. A book-forming and pressing machine according to one of the preceding claims, characterized in that at least one of the prism plates (66, 67) has channels (77) for a fluid medium.
19. A book production line including a book-forming and pressing machine according to one of Claims 1 to 18.

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