EP2650139A1 - Book moulding and pressing machine - Google Patents

Abstract

The machine has a pressing device (30) that is provided with a number of spaced-apart pressing plates (31,32), joint-burn-in rails (35,36) and a station for accommodating a book block (37). A reshaping device (1) is provided with a mechanism to shape a front cut of the book block in which a tool carrier (5) with a shaping tool is used to shape the front cut. The tool carrier and shaping tool are provided to execute a series of movements in one plane or in three-dimensional space relative to the front cut to be shaped when the book block is held in pressing device. An independent claim is included for a method for operating a book forming and pressing machine.

Description

Technical area

The invention relates to a book forming and pressing machine with the features of the preamble of claim 1. It also relates to a method for operating such a book forming and pressing machine.

From the DE 4422783 A1 a book forming and pressing machine has become known, which has a number of pressing devices arranged thereon with Falzeinbrenneinrichtungen arranged on a rotor about an axis of rotation intermittently driven rotor. The books are in an import station in a pressing device in which they are taken over the entire surface and continuously formed on the burn-in bar, introduced and remain permanently in the same press jaw until they are led out again in the export station. Between feeding the book blocks suspended in blankets and making the formed and pressed books, the rotor makes some intermittent rotational movements, which are used as a press-burn time.

In slightly closed Falzformschienen and closed with or without pressure press plates then a loading temple lowers as a mold rail of a Nachformeinrichtung against the front section and presses the book block in the back, whereby the two book covers are pulled over Schrenz and intent in the joint against the Einbrennschienen. Book block and book cover can be aligned relative to each other while re-forming the book. In the form of rails there are separate inserts for round and straight books.

Another feature of this book forming machine and almost all book forming and pressing machines on the market is that for safety reasons the entire machine is provided with a panel, and that stand out from this housing only the import belt and the export belt, so a change of a fitting, for example when changing from a straight book to a round book or when changing to a massively changed fitting, with an improved rounding letting the machine run empty, opening the protective cover and restarting the machine.

Presentation of the invention

The invention aims to remedy this situation. The invention, as characterized in the claims, the object is to provide a book forming and pressing machine, in which a Nachformeinrichtung is designed so that, depending on the design of the front section of the book block resp. the book block back an automated commissioning of various Nachformstempeln is made.

For this purpose, the Nachformeinrichtung is designed so that it is equipped with a tool carrier, which interchangeable moldings for straight and round books, etc., having, these moldings then operationally press against the front section and thus re-form the book block backs.

In this case, elements of the Nachformeinrichtung resp. the tool carrier is formed so that they are movable relative to the front section of the clamped book block at least in the horizontal and vertical directions, so at least cover the X and Y plane.

In addition, the inventive Nachformeinrichtung is designed so that in the plane of the front section of the clamped book block belonging to the Nachformeinrichtung tool carrier, which in turn is usually composed of a base device and at least one tool, is effective. The tool carrier performs in a first application form described in more detail a rotational movement, wherein in the circumferential direction of the tool carrier, ie along a circular arc, a plurality of tangentially arranged tools, ie moldings are arranged, whereby the tool carrier itself fulfills the function of stocking on moldings, which retrieved on a case-by-case basis without an inversion operation. can be brought into operating position.

In principle, however, the tool carrier belonging to the postforming device is not limited to such a variant embodiment. Basically, the post-forming device always consists of at least one, also differently designed tool carrier, which is equipped with at least one intended for the shaping of the front section tool, so molding strip. The tool carrier and / or the tool perform a sequence of movements in a plane or in space relative to the front section to be formed, whereby this sequence of movements per se, depending on the tool carrier type, may be different, and this sequence of movements may be adjustable by machine , freely programmable and / or be guided by at least one sensor.

However, it is also a prerequisite for a good reshaping that the book block, which rests on the prism plates of the loading table, is positioned at the correct height between the press plates, so that the Einbrennleisten in the Buchfalzes impact with a small force on the book and so Hold the book when the loading table is moved back down.

A possible embodiment of the loading table provides that during the loading operation of the book block via a signal device whose contour is detected and the drive of the loading table, which has a distance measuring system, the correct height is approached.

Likewise, it is important that during the post-forming process, the book block is already pre-pressed slightly by the two adjoining pressure plates belonging to the pressing device, so that the book block still remains from the post-forming device can be moved, but the mold of the Nachformeinrichtung when moving the book block does not penetrate into the cut of the book. After reshaping the book shape generated is fixed by increasing the pressure of the baking strips and the Nachformeinrichtung resp. The tool carrier is moved out of the press plates.

In order to be able to achieve the best baking and pressing results in the subsequent pressing process for books which tend to form wrinkles in the area of the attachment, it has been found that in addition to the already existing pressing sequences baking / pressing and pressing / baking a third variant pressing / Burning / pressing finds its authorization.

In this case, the pressing device can be easily configured with several serially arranged stations, which can be equipped with as many book blocks. Each station is individually by a Nachformeinrichtung resp. operated by a tool carrier, with a number of tool carriers sidelined simultaneously in use or can be operated intermittently to increase production.

For the operation of both the pressing device and the post-shaping device, the sequences of the underlying motions can be set by machine, freely programmed and / or guided by at least one sensor.

The moldings serving as a tool, which generally form an integral part of the tool carrier, can, as far as the Nachformeinrichtung is a wheel-like tool carrier, preferably arrange radially outward on belonging to the tool carrier spokes, these moldings then a common axis of rotation with the tool carrier form.

This characterized by a rotation tool carrier with the built-in circumferentially and tangentially arranged moldings is initially operated by exhausting its degrees of freedom and motor centered to the between driven the book plates located book plates. It comes at a sufficient distance to the front section - ideally, the range of rotation of the tool carrier with its moldings completely outside the pressing device - each to a rotationally supported Beistellung those moldings, which represents the requested shape according to the design of the book block back.

Preferably, the exact retraction of the moldings carrying tool carrier between the press plates is taken over by a controller, in which the necessary data for this purpose are fed continuously or have been previously entered and stored there. This applies not only to the wheel-like tool carrier described here, but also to any other tool carrier, which may be constructed, for example, in the sense of a robot arm.

The starting point for an automated delivery of the corresponding mold bar is the dimensioning of the book block to be processed, and beyond that also the shape of the front section to be made. of the book block spine. The creation of the coordinates for this purpose is usually achieved by a sequence of movements at least in the vertical and horizontal direction relative to the plane of the front section. From this, from the stocking in the tool carrier that form bar is activated resp. used resp. detected, which has been optimally determined for the reshaping of the book block.

Once the coordinates of the tool carrier with respect to the front section of the book block are determined, so the auschlaggebende centrality has been created for the front section, and is the hub resp. the translational pivoting movement determined until the molding of the molding on the front section, so engages for the same book block only a monotonous movement, ie the tool carrier with operating in this level form bar moves each slightly out of the sphere of influence of the press plates until the next Loading with one or more book block is done, and then performs the shaping movement again.

The rotor performs an intermittent rotary motion, which brings at least one next empty pressing device in the loading position, in which at least the next book block for the Nachformung between the press plates is retracted and then stands ready for the shaping.

Following different book blocks with different book block back shapes and dimensions in succession, so in addition to the pure stroke of the tool carrier initially also a rotating movement, as far as it is a rotary tool carrier, until the provision of the retrieved form bar is done; In addition, if necessary, an adapted Ausmittung this form bar against the new book block resp. take place opposite the corresponding assumed position of the press plates.

If a robot-like tool carrier is used, the tool-carrying part in each case returns to the appropriate tool from a tool magazine. In any case, the movement for the shaping of the book block back also takes place here by a substantially vertical lowering of the tool carrier.

Since this always the dimensions of the mold used are known, it can be ensured by a controller that this mold does not collide during its vertical movement when retracting between the press plates with the latter, since their spacing is known to the controller. Furthermore, the center of the moldings to the book block by a substantially horizontal movement of the Nachformeinrichtung resp. of the tool carrier automatically adjusted resp. be fine-regulated.

The main advantage of the invention is therefore to be seen in the fact that there is no additional set-up times with each format change and / or with each change of the book block back shape, and complementary time-consuming manual operations are eliminated.

Thus, a new system can be made available which leads to a substantial increase in productivity while maximizing the quality of the product.

According to a further advantageous embodiment of the inventive Nachformeinrichtung the rotating tool carrier is connected in its center of rotation with a rotatable about the axis of rotation shaft, the tool carrier in its center of rotation can easily have in the direction of the axis of rotation protruding from him shaft. On the shaft, a coupling flange can be arranged with radial locking holes, or the shaft itself has such locking holes. Each locking hole is assigned each angularly one of the moldings. Preferably, at right angles to the axis of rotation, a locking pin is arranged and driven so that it can be inserted positively into its associated locking holes, resulting in a system backup of the tool carrier. Of course, other locking concepts are possible.

The tool carrier can also have the shape of a rail located parallel or quasi-parallel above the front section and adjustable in at least one plane. At least one tool, which can be adjusted in at least one plane, is then arranged on this rail. If the individual tools are firmly anchored on the rail, then if necessary, they perform corresponding translational movements until the retrieved tool has been brought into position, kinematic reversals being possible with respect to the tools.

Furthermore, it is advantageous if at least one marking is provided for each molding strip in the novel shaping device. This provision can then be advantageously complemented with a stationary sensor for detecting the position and confirmation of the retrieved form bar, the system may also include a detection, which gives the exact parallel alignment of the pressing surface of the mold bar relative to the plane of the front section information.

Due to the fact that each mold has a mark and each mold can be mounted on each tool slot of the tool carrier, preferably the rotating tool carrier can be fitted in any order with different moldings. An identification of the order of the moldings located on the tool carrier is then always done automatically by the controller; the form can then be selected by program or by pressing a button. Such an identifiable control is also used when robot arms take over the function of the tool carrier for the formation of the book block back.

Task-advantageous embodiments are apparent from the remaining dependent claims.

Brief explanation of the figures

Figur 1

eine perspektivische Darstellung der Buchform- und Pressmaschine gemäss einem Ausführungsbeispiel mit eingesetztem Buch,

Figur 2

eine weitere perspektivische Darstellung einer Sicht auf eine Nachformeinrichtung der Buchform- und Pressmaschine aus Figur 1 ohne weitere Details der Buchform- und Pressmaschine, von der lediglich zur schematischen Verdeutlichung eine Pressplatte mit entsprechend angeordnetem Buch gezeigt ist,

Figur 3

eine weitere perspektivische Ansicht auf die Nachformeinrichtung aus Figur 2 mit Blick auf einen Kupplungsflansch mit Arretierbohrungen,

Figur 4

eine roboterähnliche Vorrichtung als Werkzeugträger konzipiert mit auswechselbaren Werkzeugen und

Fig. 5

eine Disposition mehrerer Werkzeugträger in Serie in Wirkverbindung mit einer mit mehreren Stationen disponierten Presseinrichtung.

The invention will be explained in more detail with reference to figures. All elements not essential to the instant understanding of the invention have been omitted. The same elements are provided in the various figures with the same reference numerals. Show it:

FIG. 1

a perspective view of the book forming and pressing machine according to an embodiment with inserted book,

FIG. 2

a further perspective view of a view of a Nachformeinrichtung the book forming and pressing machine FIG. 1 without further details of the book forming and pressing machine, of which only for schematic clarification a press plate with a correspondingly arranged book is shown,

FIG. 3

another perspective view of the Nachformeinrichtung FIG. 2 facing a coupling flange with locking holes,

FIG. 4

a robot-like device designed as a tool carrier with interchangeable tools and

Fig. 5

a disposition of several tool carriers in series in operative connection with a multi-station arranged pressing device.

Embodiments of the invention

The FIGS. 1 to 3 show a novel Nachformeinrichtung 1. In FIG. 1 the Nachformeinrichtung 1 is shown in its installation situation in a Buchform- and pressing machine. The book forming and pressing machine is intended to hold a book block 37 with the book block spine 39 (FIG. Fig. 2 ) between press plates 31, 32 on a loading table 62. The representation according to Fig. 1 shows an open side of the book forming and pressing machine, wherein the between the press plates 31, 32 correspondingly clamped book block 37 can be seen. Typically, the book forming and pressing machine is designed for vertical alignment of the book block 37. However, this is an advantageous way of working, but it is not mandatory. The information used in the description above and below or horizontally and vertically refer to the usual levels.

FIG. 1 shows from top to bottom a Nachformeinrichtung 1, a pressing device 30 and a loading device 60. The loading device 60 has in a vertical orientation Y to each other parallel prism plates 66, 67 which face the back 39 of the book block 37 and act as a support. The prism plates 66, 67 directly in operative connection with the book block spine have the shape optimally corresponding to the shape of the book block spine 39.

Concerning the press plates 31, 32 of the press device 30, the outer press plate 31 is fixedly arranged, while the inner press plate 32 is adjustable to format by a horizontal movement X with respect to the book block 37.

A vertical movement Y of the loading device 60 with respect to the pressing device 30 is also ensured.

In a lower region of the pressing device 30, facing the book block back 39, heating bars 33, 34 are arranged on both sides of the book block 37. The heating bars 33, 34 heat baking rails 35, 36 which form the book block 37. The book block 37 has the book block back 39 opposite an open to be deformed front section 38 (see. Fig. 2 ).

Above the book block 37 is in FIG. 1 the postforming device 1 with a vertically and horizontally adjustable (indicated by arrows Y1, X1), wheel-like, about rotating tool carrier 5 shown. The tool carrier 5 has radially extending spokes 13 which carry at their outer ends tangentially arranged moldings 6, 7, 8, in the present case four moldings, which are arranged in pairs opposite one another. The number of moldings is free and their distribution on the circumference does not have to be symmetrical.

The moldings 6, 7, 8 have the front section 38 of the book block 37 facing differently strongly curved surfaces or flat surfaces, which are available depending on the desired configuration of the book block 37.

From the Figures 2 and 3 further details of the post-forming device 1 show.

Out FIG. 2 shows that the vertical adjustability of the post-forming device 1 is given by a rail-slide arrangement with a guide rod 2 and a guide carriage 3. On the guide carriage 3, a support arm 4 is fixed, which receives a rotatable shaft of the tool carrier 5.

How detailed FIG. 3 shows, the shaft 12 is mounted centrally to the tool carrier 5. The axis of rotation of the shaft 12 also forms the axis of rotation the tool carrier 5, whereby the moldings 6, 7, 8 can perform a circular movement.

The moldings 6, 7, 8 have on the inside one or more marking pins 9 ( Fig. 2 ), whose markings are in operative connection with a sensor 10. The sensor 10 is arranged in this embodiment of the invention at an upper end of the guide rod 2, such that the detection of a marker pin (9) is ensured.

Out FIG. 3 is a back view of the tool carrier 5 and its rotary drive 15 forth. The tool carrier 5 is rotatably mounted with its shaft 12 in a support arm 4, so that the spokes 13, depending on the embodiment, parallel, quasi-parallel or angled to the support arm 4 can lie.

Furthermore goes out FIG. 3 that the support arm 4 adjacent to the bearing of the shaft 12 has a bearing 17 for a locking pin 18. In the continuation of the plane of the shaft 12 of the tool carrier 5, a lifting cylinder 19 is arranged, which is in positionally compatible operative connection with a locking pin 18, and causes its operative operation. In the area of action of the locking pin 18, a coupling flange 14 is applied around the shaft 12, which is in operative connection with a connected rotary drive 15. The coupling flange 14 itself has in its outer lateral surface locking holes 20 which are radially aligned with the shaft 12.

The right angle to the shaft 12 arranged in the region of the coupling flange 14 locking pin 18 engages operated by the connected lifting cylinder 19, each in a dedicated locking hole 20 a form-fitting manner.

By means of in FIG. 2 apparent sensor 10, the markings of each mold bar are detected and the travel angle 11 is measured and stored. In the presentation of FIG. 2 is the mold bar 8 above the front section 38 of the book block 37 in an active position. By means of the sensor 10 was previously to a corresponding travel angle 11 recognized reaching the active position of the mold bar 8. The measured values of the travel angle 11 are transferred, for example, to a central machine control and adjusted with reference values, so that the selection of the corresponding conformal moldings is ensured after specification of a specific format.

If an active position of one of the moldings 6, 7, 8 is reached, the locking bolt 18 can retract in its radial movement to the shaft 12 in the locking hole 20 of the coupling flange 14, so that the active position of the corresponding mold strip is secured. The movement active connection between the locking pin 18 and the lifting cylinder 19 is always in operation when it comes to fix the triggered by the rotary drive 15 rotation of the shaft 12 in a timely manner to position by the activated locking pin 18 einführet in the incoming locking hole 20.

To ensure that the correct mold rail is used, each mold rail 6, 7, 8 is provided with one or more distinctive markings 9, such as one or more cylinder pins at a different position. During a format change, a sensor-based signal device (sensor 10) queries these markings 9 during a complete rotational movement of the tool carrier 5 and identifies each of the operatively acting moldings 6, 7, 8 over the read rotation angle 11 with respect to a predetermined zero axis.

Thereafter, a variable-speed drive rotates the tool carrier 5 until the active mold bar 8 has reached its working position over the press plates 31, 32. Then the switchable locking pin 18 secures this position against further rotation.

This setup process is automatically implemented and always happens outside the spatially located below movement range of the press plates 31, 32. The dimensions of the active mold bar 6, 7, 8 and the respective inner spacing of the press plates 31, 32 to each other are stored in the controller, so that Collisions remain excluded during the vertical movement of the moldings in operation, bearing in mind that the operationally correct position of the moldings 6, 7, 8 is determined by the controller.

In such controlled movements, it is no longer necessary to manually set or control the mean of the active mold bar with respect to the respective dimensioning of the book block 37.

Out Fig. 4 shows another possibility of a tool carrier 100, which has a different concept to that in the Figures 1-3 Basically, however, the final shape of the front section 38 remains unchanged with both variants 5, 100 described. This tool carrier 100 has a robot-like design and consists of a column 101, which assumes the leadership for a guide carriage 105 in the vertical direction Y. On the guide carriage 105, a boom 106 is anchored, which carries a tool holder 107 end. The vertical displacement of the carriage 105 is accomplished by a motor 102. The column 101 is anchored to the foot on a horizontally displaceable guide carriage 103, whose displacement is also accomplished by a motor 104. Boom 106 and tool holder 107 are movable in both directions (X, Y). With these wide degrees of freedom, the replacement of the individually designed tools 108, 109, 110 can be carried out directly from a tool magazine via an automatic clutch mechanism 111/112, as can be seen from FIG. 4 evident. Once the tool with the corresponding mold bar has been brought over the executed by the boom 106 vertical movement in combination with a horizontal translation on the carriage 103 in operative position, then the effective shaping of the front section is then resp. the back of the book block by a pure vertical movement of the carriage 105. Again, it is readily possible to make the sequence of movements via a control, according to the same criteria, as have been described in the previous tool carrier 5. Again, can be position-dependent locking mechanisms provide that provide a stabilizing effect for the shaping sequence.

Fig. 5 shows two arranged in series tool carrier 5, which have the same structure as under the Figures 1-3 were set out. Such a disposition must preferably always be seen in operative connection with the pressing device, which then also has to have a plurality of serially arranged stations for just as many book blocks. Each station is then individually by a Nachformeinrichtung resp. operated by a tool carrier, wherein a number of tool carriers can be used simultaneously to increase production, or operated intermittently. Such a production cadence can also be operated with robot-like tool carriers 100.

Claims (20)

Book forming and pressing machine, essentially consisting of a postforming device (1), a pressing device (30), a loading device (60), wherein the loading device consists essentially of a loading table (62), and the pressing device (30) of a number of each other spaced-apart pressing plates (31, 32), and Einbrennschienen (35, 36), and wherein the Nachformeinrichtung (1) comprises means which relative to a front section (38) of a book block (37) accomplish a shaping, characterized in that the pressing device (30) at least one station for receiving a book block (37), that the Nachformeinrichtung (1) consists of at least one tool carrier (5, 100), which with at least one forming tool (6, 7, 8) for the shaping of Front section (38) is equipped, and that the tool carrier (5, 100) and / or the forming tool (6, 7, 8) relative to the front section to be formed (38) a sequence of Bewegunge n in a plane or in space. Book forming and pressing machine according to claim 1, characterized in that the pressing device (30) has a plurality of serially arranged stations for receiving a corresponding number of book block (37), and that each station or several stations an individually or in combination interdependent operable tool carrier ( 5, 100) and / or tool (6, 7, 8, 108, 109, 110). Book forming and pressing machine according to claim 1, characterized in that the shaping tool is formed by moldings (6, 7, 8). Book forming and pressing machine according to claim 1, characterized in that the tool carrier (100) and the tool (108, 109, 110) components of a motion machine whose motion sequences, paths and angles are characterized by axes degrees of freedom. Book forming and pressing machine according to claim 4, characterized in that the movement machine (100) for the front cut (38) to be formed in each case accesses at least one tool (108, 109, 110) stored in a tool magazine. Book forming and pressing machine according to claim 1, characterized in that the tool carrier (5) has the shape of a wheel-like structure, that the tool carrier carries a plurality of tools (6, 7, 8,) arranged on the outer circumference, and that the tools (6 , 7, 8) are arranged in a tangential arrangement concentric with the center of the tool carrier (5). Book forming and pressing machine according to claim 6, characterized in that the tools (6, 7, 8) are distributed symmetrically in the circumferential direction on the tool carrier (5). Buchform- and pressing machine according to claim 6, characterized in that the tool carrier (5) in the region of its center of rotation means (12, 14, 18, 20) which has a positive position relative to the tool in use (6, 7, 8 ) create. Buchform- and pressing machine according to claim 8, characterized in that the tool carrier (5) is connected in its center of rotation with a shaft (12) that the shaft (12) or anchored on the shaft coupling flange (14) radially extending locking holes (20 ), which are in operative connection with an undeliverable locking pin (18), and by the two (18, 20) form a positive connection, and that each positive position between the locking hole (20) and locking pin (18) the operative position of a particular tool ( 6, 7, 8). Buchform- and pressing machine according to claim 9, characterized in that the locking pin (18) relative to the locking hole (20) in alignment and at right angles or at an acute angle to the shaft (12) is deliverable. Buchform- and pressing machine according to claim 1, characterized in that the tool carrier has the shape of a above the front section (38) extending parallel and adjustable in at least one rail, on which rail at least one adjustable in at least one tool (6, 7th , 8) is arranged. Method for operating a book form and pressing machine, which consists essentially of a postforming device (1), a pressing device (30), a loading device (60), the loading device essentially consisting of a loading table (62), and the pressing device of a number of according to one of claims 1 to 3 spaced apart pressing plates (31, 32), and of Einbrennschienen (35, 36), and wherein the Nachformeinrichtung (1) comprises means which over a front section (38) of a book block (37) perform a shaping -11, characterized in that the pressing device (30) with at least one station for receiving a book block (37) is operated, that the Nachformeinrichtung (1) consists of at least one tool carrier (5, 100), which at least one for the Design of the front section (38) certain tool (6, 7, 8) is fitted, that the tool carrier (5, 100) and / or the tool (6, 7, 8, 108, 109, 110) opposite perform the sequence of movements in a plane or in space to the front section (38) to be formed, and that the sequence of movements are set by machine, are freely programmable, or are guided by at least one sensor A method according to claim 12, characterized in that the tool carrier (5, 100) transversely to the width of the front section (38) at least one further translational Movement and relative to the front section (38) performs at least one vertical or quasi-vertical shaping movement. A method according to claim 12, characterized in that the sensor (10) detects directly or indirectly at least one information about the position of a tool (6, 7, 8, 108, 109, 110) or about the position of the operationally determined tool and to a Forwarding control unit. A method according to claim 14, characterized in that the position of the tool (6, 7, 8, 108, 109, 110) is detected in space by at least one sensor (10). A method according to claim 12, characterized in that in the reshaping of the on the loading table belonging prism plates (66, 67) resting book block is positioned at a predetermined height between the pressing means (30) associated pressing plates (31, 32), such that the Einbrennschienen (35, 36) in the region of a Buchfalzes with less force on the book block impinge, and that the book block is held in the lowering of the loading table (62). A method according to claim 16, characterized in that during the loading of the book block via a signal device, the contour of the book block is detected, and that is approached via a drive to be controlled height of the loading table (62). A method according to claim 17, characterized in that the loading table (62) is operated with a displacement measuring system. Method according to one of claims 12-18, characterized in that the book block during the Nachformprozesses by the press plates (31, 32) is pre-pressed, and that after the Nachformprozess the book block by increasing the pressure force of the Einbrennschienen (35, 36) is fixed and that then the postforming device is moved out of the area of the press plates. Method according to one of claims 12-19, that the pressing sequences in the production of the book block are carried out according to the following procedures: - Burning / pressing, or - pressing / baking, or - Pressing / baking / pressing.

Images