Book block sorting device

Abstract

A sorting apparatus (10) for sorting book blocks (50) is described, the sorting apparatus (10) comprising a filling station (1) for sorting one or more book blocks into receptacles (51.1, 51.2, 51.3), a first input conveyor (1.1) configured to supply the book blocks to the filling station (1), a second input conveyor (1.2) configured to supply empty receptacles (51.1) to the filling station, and a first output conveyor (1.3) configured to transport full receptacles (51.3) away from the filling station, the filling station comprising a plurality of insertion devices (14) configured to insert the one or more book blocks into the receptacles, and a controller (20) configured to receive sorting information for the one or more book blocks and to control the insertion devices to sort the one or more book blocks into the receptacles using the sorting information.

Description

[Technical field]

[0001] The present invention relates to a sorting device for sorting book blocks, a method for operating the sorting device, and a control device for controlling the sorting device. [Background technology]

[0002] Book blocks comprising a stack of printed sheets are typically produced in a book production line which may perform different processing steps such as printing, cutting, folding, gluing, stacking, aligning, etc. At the end of the book production line where the pre-glued book blocks arrive on a conveyor, an operator typically manually collects the book blocks for further processing such as passing them to a bookbinder to apply covers to the book blocks. The operator may perform several manual tasks including, for example, sorting the arriving book blocks into categories of covers to be applied to the book blocks such as different paper types, basis weights, formats, etc.

[0003] Books are produced, for example, on a book production line that uses digital printing on a continuous strip of paper and includes rewinding and printing stations and other kinematic components including punching and cutting stations, dynamic signature forming stations and collection and pre-assembly stations, at the end of which a conveyor belt is usually provided to allow an operator to remove the stabilized book block for manual processing or to access a binding machine that stitches the book block into a cover. Summary of the Invention [Problem to be solved by the invention]

[0004] In the process of optimizing the production of books, it is desirable to increase the number of automated steps. However, certain steps are commonly performed manually despite the inefficiencies and inaccuracies associated with manual actions in production. As mentioned above, the sorting of book blocks at the end of a book production line, for example, is commonly performed manually and automating this step is not easy considering the variety of book blocks produced for different orders and categories for further processing, such as applying the correct cover to each book block.

[0005] It is therefore an object of the present invention to provide a sorting device for sorting book blocks, a method for operating a sorting device and a control device for a sorting device that at least partially improves upon the prior art and avoids at least some of the disadvantages of the prior art. [Means for solving the problem]

[0006] According to the invention, this object is achieved by means of the features of the independent claims, further advantageous embodiments follow from the dependent claims and the description and figures.

[0007] According to one aspect of the invention, this object is achieved inter alia by a sorting apparatus for sorting book blocks, comprising a filling station for sorting one or more book blocks into receptacles, a first input conveyor configured to supply the book blocks to the filling station, a second input conveyor configured to supply empty receptacles to the filling station, and a first output conveyor configured to transport full receptacles away from the filling station, the filling station comprising a plurality of insertion devices configured to insert the one or more book blocks into the receptacles, and further comprising a control device configured to receive sorting information for the one or more book blocks and to control the insertion devices to sort the one or more book blocks into the receptacles using the sorting information.

[0008] The control device may in particular receive sorting information for each of the book blocks to be sorted. The sorting information may therefore be book-block specific sorting information. As the control device is configured to receive the sorting information and to control the insertion device to sort one or more book blocks into the receptacles, the sorting process can be automated and manual sorting of the book blocks can be avoided. In particular, the control device may use the sorting information to determine which insertion device should be controlled so that each of the book blocks to which the sorting information belongs is inserted into the correct target receptacle. The sorting device may therefore perform for each unsorted book block arriving by the first input conveyor the steps of receiving the sorting information by the control device, determining which insertion device and / or target receptacle to control by the control device according to the sorting information of each of the book blocks, and controlling by the control device the selected insertion device to insert each of the book blocks into the target receptacle using the insertion device.

[0009] Preferably, the sorting device comprises at least one book block reader configured to read sorting information from at least one identification tag of the book block, and the control device is configured to receive the sorting information from the at least one book block reader.

[0010] The at least one book block reader may preferably be arranged on the first input conveyor and read sorting information of unsorted book blocks passing by the at least one book block reader via the first input conveyor. The at least one book block reader may for example be a data matrix code reader, a QR code reader, a bar code reader, an RFID reader etc. Accordingly, the at least one identification tag of the book block may for example be a data matrix code, a QR code, a bar code, an RFID tag etc. The at least one book block reader may be connected to the control device by a wired or wireless connection.

[0011] Alternatively or additionally, sorting information may be received by the controller from an upstream process, for example from an upstream printing system.

[0012] Thus, with at least one book block reader, the sorting device may perform the steps of reading sorting information by the book block reader for unsorted book blocks arriving by the first input conveyor, transmitting the sorting information from the at least one book block reader to the control device, determining which insertion device and / or target receptacle to control by the control device according to the sorting information of each of the book blocks, determining which insertion device and / or target receptacle to control by the control device according to the sorting information of each of the book blocks, and controlling by the control device the selected insertion device to insert each of the book blocks into the target receptacle using the insertion device.

[0013] The at least one book block reader is preferably configured to read further information, in particular the book block identification information, from the at least one identification tag of the book block and to transmit the book block identification information to the control device. Reading the book block identification information from the at least one identification tag advantageously allows identifying and tracking the individual book blocks during the sorting process.

[0014] The control device may in particular comprise a computer configured to receive sorting information from the at least one book block reader and to control the insertion device. The control device may be connected to the insertion device by a wired or wireless connection.

[0015] Although the sorting apparatus is currently described for sorting book blocks in accordance with this disclosure, those skilled in the art will recognize that a sorting apparatus according to this disclosure may also be used to sort book covers.

[0016] In some embodiments, the control device comprises a memory having a sorting category schedule stored therein having sorting categories each defining matching sorting information, each of the insertion devices being assigned at least one sorting category, and the control device is configured to select an insertion device having an assigned sorting category that matches the sorting information of the book block and to control the selected insertion device to sort the book block into the receptacle.

[0017] The sorting categories may comprise, for example, one or more book cover sorting categories, such as hard / soft, matte / glossy, etc., one or more paper type categories, one or more basis weight categories, one or more format categories, and / or other categories. The controller may assign at least one sorting category to each of the insertion devices such that a receptacle filled by a particular insertion device may be filled with one or more book blocks for each of the sorting categories. For example, a receptacle of an insertion device assigned the sorting category "hardcover" may be filled with book blocks that are required to have a hard cover. This may be achieved by the sorting categories defining matching sorting information that is readable from an identification tag by a book block reader. The matching sorting information may be, for example, an entry in a particular field of the identification tag, such as a data matrix code, a QR code, a bar code, etc.

[0018] For example, the sort category "hardcover" assigned to a particular sorting device may define sort information that matches a field entry of the number "3" representing a book block to be provided in hardcover. If a book block reader reads the identification tag of a book block arriving by a first input conveyor and transmits sort information to a controller that the identification tag has a field entry of "3", the controller may check the sort category schedule to find a sort category "hardcover" that defines entry "3" as the matching sort information. The controller may then select a loading device that is assigned the sort category "hardcover" and control the loading device so that each of the book blocks is loaded into a receptacle filled by the loading device.

[0019] For example, classification according to other categories, such as paper type categories, basis weight categories, format categories, etc., may be performed as appropriate.

[0020] In some embodiments, the sorting schedule preferably comprises two, and more preferably four, book cover sorting categories for sorting one or more book blocks according to the book covers for the one or more book blocks.

[0021] The insertion devices may be assigned with multiple sorting categories, e.g., book cover sorting categories. For example, an insertion device may be assigned the book cover categories of "glossy" and "hardcover." Thus, the controller may select an insertion device when a book block with matching sorting information of "glossy" and "hardcover" is read by the book block reader, and control the insertion device to insert the book block into each of the receptacles.

[0022] Different combinations of sorting categories may be assigned to the inserting devices. For example, a sorting category schedule with four book cover sorting categories, such as hard, soft, matte and glossy, may result in four different assignments of inserting devices: hard / matte; hard / glossy; soft / matte; soft / glossy. Alternatively, the sorting category schedule may result in only two different assignments of inserting devices, for example if it is required to sort book blocks only by the applied hard cover or soft cover. Other combinations, such as book cover categories and paper type categories, are also possible.

[0023] In some embodiments, the first input conveyor, the second input conveyor and the first output conveyor are arranged in parallel.

[0024] Arranging the first input conveyor, the second input conveyor and the first output conveyor in parallel has the advantage that the sorting apparatus can be designed compactly.

[0025] In some embodiments, at least two of the first input conveyor, the second input conveyor, and the first output conveyor are disposed perpendicular to one another. For example, the first input conveyor and the first output conveyor may be disposed perpendicular to one another.

[0026] Depending on the spatial requirements of the installation of the sorting device and / or the book production system comprising the sorting device, a vertical arrangement may be advantageous. Furthermore, by arranging at least two of the first input conveyor, the second input conveyor and the first output conveyor vertically to each other, in particular by arranging the first input conveyor and the first output conveyor vertically, it may be possible to sort one or more book blocks spine-first into the receptacles without the need for a rotating device.

[0027] In some embodiments, one or more of the first input conveyor, the second input conveyor and the first output conveyor comprise a belt conveyor and / or a roller conveyor and / or a gripper conveyor.

[0028] In some embodiments, the first input conveyor comprises a roller conveyor and a band conveyor. The roller conveyor may be disposed downstream of the band conveyor with respect to a conveying direction of the first input conveyor.

[0029] In some embodiments, the first input conveyor comprises a first roller conveyor and a second roller conveyor. The first roller conveyor may be disposed downstream of the second roller conveyor with respect to the conveying direction of the first input conveyor. The second roller conveyor may comprise a plurality of inclined cylindrical rollers. The cylindrical rollers may be inclined such that the book blocks conveyed on the second roller conveyor are conveyed towards the turning device, in particular towards a guide plate of the turning device.

[0030] In some embodiments, the book block reader is configured to read the pre-sorting information from at least one identification tag of the book block. Thus, the sorting information may comprise pre-sorting information. The pre-sorting information may comprise identification information of a quality book block for quality inspection or identification information of an inspection book block. The pre-sorting information may alternatively or additionally comprise identification information of an incomplete book block.

[0031] In some embodiments, the first output tray is arranged on the first input conveyor, in particular on a roller conveyor of the first input conveyor or on a first side of a first roller conveyor of the first input conveyor. The first input conveyor may be configured to transport the quality book blocks and / or the inspection book blocks to the first output tray.

[0032] In some embodiments, the second output tray is disposed on the first input conveyor, in particular on a roller conveyor of the first input conveyor or on a second side of the first roller conveyor of the first input conveyor. The first input conveyor may be configured to transport incomplete book blocks to the second output tray.

[0033] The first input conveyor may be controlled by a controller configured to receive pre-sorting information from the book block reader and to control the first input conveyor to transport the book blocks in response to the received pre-sorting information. In particular, the controller may control the first input conveyor to transport the book blocks to the filling station, the first output tray or the second output tray in response to the received pre-sorting information.

[0034] In some embodiments, the controller controls the first input conveyor and / or the first output conveyor and / or the second input conveyor such that the time it takes to sort the book blocks supplied from the first input conveyor into the receptacles is longer than the time it takes for the first output conveyor to transport the full receptacle from the filling station and replace the full receptacle with an empty receptacle.

[0035] The time for sorting the book blocks input from the first input conveyor into the receptacles can be controlled by the control device by controlling the conveying speed of the first input conveyor and / or the input speed of one or more input devices. The time for transferring the full receptacles from the filling station by the first output conveyor and replacing the full receptacles with empty receptacles can be controlled by the control device by controlling the moment at which the full receptacles are output from the filling station to the first output conveyor and / or the conveying speed of the first output conveyor and / or the conveying speed of the second input conveyor.

[0036] By controlling the time to sort book blocks supplied from the first input conveyor into receptacles to be longer than the time to transport a full receptacle from the filling station by the first output conveyor and replace the full receptacle with an empty receptacle, the receptacles are prevented from being overrun by incoming book blocks, particularly during receptacle exchanges where a full receptacle is exchanged for an empty receptacle.

[0037] In some embodiments, the filling station comprises a plurality of filling locations, preferably arranged in a row, more preferably along the conveying direction of the first input conveyor, each of the filling locations being arranged with an insertion device and configured to place one or more book blocks at the filling location such that each insertion device allows the one or more book blocks to be inserted into receptacles arranged at the filling location.

[0038] Thus, unsorted book blocks may be transported along the conveying direction of the first input conveyor until they reach an insertion device whose sorting information matches the sorting category assigned to the insertion device. The insertion device may insert the book blocks into receptacles located at a loading station of the insertion device. Thus, locating the loading station along the conveying direction of the first input conveyor allows optimal utilization of the available space and reduces the complexity of using multiple input devices to sort one or more book blocks into receptacles.

[0039] In some embodiments, the filling station preferably comprises a plurality of waiting locations arranged in a row, and more preferably along the conveying direction of the second input conveyor, each configured to position an empty receptacle received from the second input conveyor, each of the plurality of waiting locations being positioned upstream with respect to the filling location such that an empty receptacle can be moved from the waiting location to the filling location when the filling location is unoccupied.

[0040] The multiple waiting locations have the advantage that empty receptacles can be kept ready to be efficiently exchanged for full receptacles carried away by the first output conveyor. The multiple waiting locations can thus act as buffer locations to buffer empty receptacles arriving by the second input conveyor. The waiting locations and the filling locations may be advantageously used to optimize the synchronicity of receptacle transport and book block transport by adjusting the waiting time at the waiting locations and / or the movement of receptacles from the waiting locations to the filling locations and / or the output time of receptacles from the filling locations to the first output conveyor.

[0041] In some embodiments, the second input conveyor includes a plurality of pre-wait locations disposed upstream of the filling station's wait locations. The pre-wait locations may advantageously function to maintain a gapless supply of empty receptacles. One or more sensors may be disposed at the pre-wait locations and configured to notify an operator or controller if one or more of the pre-wait locations are unattended.

[0042] In some embodiments, the filling station includes a plurality of first receptacle drives configured to independently transport empty receptacles from each of the waiting locations to the filling location.

[0043] The first receptacle drive is preferably configured to transport empty receptacles from the waiting location to the filling location in a direction perpendicular to the conveying direction of the first input conveyor and / or the second input conveyor and / or the first output conveyor.

[0044] In some embodiments, the filling station includes a plurality of second receptacle drives configured to independently transport full receptacles from each of the filling locations to the first output conveyor.

[0045] The second receptacle drive is preferably configured to transport full receptacles from the filling location to the first output conveyor in a direction perpendicular to the conveying direction of the first input conveyor and / or the second input conveyor and / or the first output conveyor.

[0046] The first receptacle drive and / or the second receptacle drive may be a belt drive configured to drive one or more belts at a waiting location and / or a filling location configured to transport empty receptacles and / or full receptacles.

[0047] The waiting location and / or the filling location may comprise one or more height change devices configured to in particular raise the receptacles of the waiting location and / or the filling location above the level of the conveying surface of the second input conveyor and / or the first output conveyor. By raising the receptacles of the waiting location and / or the filling location above the level of the conveying surface of the second input conveyor and / or the first output conveyor, in particular, the receptacles of the waiting location may be transported to the filling location and / or the receptacles may be transported from the filling location to the first output conveyor. During the insertion of one or more book blocks into the receptacle, the one or more height change devices may lower the receptacle to the level of the second input conveyor and / or the first output conveyor. In some embodiments, the one or more height change devices may raise and lower one or more receptacle drives. For example, one or more height change devices may raise and lower one or more belt drives so that one or more belts are raised above the level of the second input conveyor and / or the first output conveyor and lowered to or below the level of the second input conveyor and / or the first output conveyor.

[0048] In some embodiments, the one or more height change devices may raise the receptacle above the level of the conveying surface of the second input conveyor and / or the first output conveyor for positioning the receptacle at the waiting location and / or the filling location and / or for inserting one or more book blocks into the receptacle. The transfer of the receptacle from the waiting location to the filling location and / or from the filling location to the first output conveyor may occur at the raised level. The one or more receptacle drive devices may be stopped for inserting one or more book blocks into the receptacle and driven for transfer of the receptacle.

[0049] In some embodiments, the control device is configured to control the first receptacle drive and the second receptacle drive such that the transport of full receptacles from the filling location to the first output conveyor and the transport of empty receptacles from the waiting location to the filling location occur simultaneously.

[0050] In particular, the transport of full receptacles from the filling location to the first output conveyor and the transport of empty receptacles from the waiting location to the filling location may occur simultaneously.

[0051] In some embodiments, the filling station includes a plurality of compound receptacle drives for each of the waiting locations and / or filling locations configured to transport empty receptacles from each of the waiting locations to a respective downstream filling location and to transport full receptacles from each of the filling locations to the first output conveyor.

[0052] The multiplex receptacle drive may specifically simultaneously transport full receptacles from the filling location to the first output conveyor and transport empty receptacles from the waiting area to the filling location.

[0053] Thus, a composite receptacle drive can combine the functionality of a first receptacle drive and a second receptacle drive.

[0054] In some embodiments, the filling station includes a plurality of rotatable lifting plates each disposed at a filling location, the plurality of rotatable lifting plates each configured to rotate to form a ramp for a receptacle each disposed at the filling location.

[0055] Due to the slope formed by the pivoting lifting plate, the book blocks deposited in the receptacle can be guided to be aligned and advantageously adjacent to the front wall of the receptacle at the filling site. The lifting plate may be pivoted using a drive with an eccentric. Especially in the case of high deposition speeds, the book blocks tend to bounce off the front wall of the receptacle. By using the lifting plate, the effect of the bouncing can be mitigated so that proper alignment of the book blocks in the receptacle can be achieved even at high deposition speeds. After filling of the receptacle, the lifting plate is pivoted back and the receptacle is transported from the filling site to the first output conveyor by using a combined receptacle drive.

[0056] In some embodiments, each of the insertion devices comprises a deflector controlled by the control device, the deflector configured to deflect one or more book blocks from the conveying direction of the first input conveyor towards the respective insertion device, the deflector being preferably arranged along a feed section of the filling station arranged downstream of the first input conveyor.

[0057] Thus, the control device may select a deflector of an insertion device to which a sorting category that matches the sorting information of the book block is assigned, and control the deflector to divert the book block from the conveying direction of the first input conveyor to that insertion device.

[0058] In some embodiments, the feed section may include a feed conveyor configured to convey one or more undeflected book blocks along a first conveying direction adjacent to the first input conveyor and parallel to a conveying direction of the first input conveyor. The deflector may be disposed on or at the feed conveyor.

[0059] In some embodiments, the supply section comprises one or more book block waiting locations that may be used to temporarily buffer one or more book blocks arriving from the first input conveyor. The one or more book blocks may be placed on the supply conveyor.

[0060] In some embodiments, the deflector comprises a plurality of rollers controlled by the controller, the plurality of rollers being individually rotatable about a first axis perpendicular to the conveying direction and parallel to the conveying surface of the first input conveyor to convey the book blocks in the conveying direction, and individually rotatable about a second axis perpendicular to the conveying direction and perpendicular to the conveying surface of the first input conveyor to deflect one or more book blocks from the conveying direction.

[0061] Thus, the rollers may act as a gate to deflect the book block from the transport direction.Other embodiments of the deflector are also conceivable, such as, for example, a switchable gate.

[0062] Multiple rollers offer the advantage of high adaptability and flexibility since the location at which the book block is deflected can be varied along the feed by controlling each roller at the desired location to deflect the book block.

[0063] Multiple rollers provide the further advantage that multiple rollers can serve the function of both transporting the book block and deflecting the book block.

[0064] In some embodiments, the loading location is located between the deflector and the first output conveyor, and a portion of the second input conveyor is preferably located below the feed section.

[0065] In particular, the waiting location can be arranged at least partially below the supply section. By arranging a part of the second input conveyor and / or the waiting location at least partially below the supply section, a compact design of the filling station can be achieved. The filling location may be arranged at a level corresponding to the level of the first output conveyor. Thus, the filling location may be arranged between the deflector and the first output conveyor, but at a different level than the deflector such that one or more book blocks are sorted downwards from the deflector to a receptacle arranged in the filling location.

[0066] In some embodiments, the sorting device comprises light barriers disposed on the deflectors, the light barriers being configured to transmit an occupancy signal to the controller when a book block is present on the respective deflector.

[0067] An occupancy signal from the light barrier can prevent false activation of the deflector in the absence of a book block.

[0068] Additionally or alternatively, one or more light barriers may be located in different sections of the sorting apparatus, for example in a downstream portion of the first input conveyor, a downstream portion of the second input conveyor, an input portion of a filling station for book blocks and / or receptacles, a supply, one or more insertion devices and / or an upstream portion of the first output conveyor. The one or more light barriers may be configured to send an occupancy signal to the controller when a book block and / or receptacle is present at the respective light barrier.

[0069] In some embodiments, the insertion devices each comprise a transfer device, preferably comprising a slide, configured to transfer one or more deflected book blocks from the deflector to a respective receptacle.

[0070] The transfer device may advantageously serve to bridge the gap between the deflector and the receptacle. The transfer device therefore allows for increased flexibility in the design of the filling station, e.g. the relative arrangement of the filling location and the supply. In embodiments where the filling location is arranged at a lower level than the supply conveyor and / or the deflector, the one or more book blocks may be inserted into the receptacle by means of a slide. In some embodiments, the slide comprises a sliding surface along which the one or more book blocks may slide. In some embodiments, the slide comprises rollers or one or more belts along which the one or more book blocks may be transported.

[0071] In some embodiments, the transfer devices each include an end that is at least partially positionable within and retractable from the interior space of the receptacle.

[0072] By positioning an end of the transport device at least partially within the interior space of the receptacle, one or more book blocks can be smoothly inserted into the receptacle, reducing the probability of damaging the one or more book blocks.

[0073] The end of the transfer device may be pivotable and / or telescopic so that it is positionable within and retractable from the interior space of the receptacle.

[0074] In some embodiments, the final height of the end of the transfer device when placed in the interior space of the receptacle can be varied.

[0075] By varying the final height of the end when placed in the interior space of the receptacle, the height of one or more book blocks already present in the receptacle can be taken into account when inserting one or more book blocks into the receptacle.

[0076] In some embodiments, the filling station comprises a plurality of ejectors, preferably in the form of one or more receptacle drives, controlled by the controller and configured to transfer full receptacles to the first output conveyor.

[0077] In particular, the ejection device may comprise a second receptacle drive or a combined receptacle drive as described above.

[0078] In some embodiments, the control device includes a memory having sorted book blocks in the receptacle having at least one maximum criterion, and the control device is configured to determine that the receptacle is a full receptacle and control the ejection device to transfer the receptacle to the first output conveyor when one or more sorted book blocks in the receptacle meet the at least one maximum criterion.

[0079] Thus, at least one maximum criterion can provide a definition of a full receptacle. In particular, a full receptacle does not necessarily have to be spatially filled with book blocks up to the top of the receptacle. Depending on the maximum criterion used, a receptacle with one, two, etc. book blocks can also be a full receptacle.

[0080] By using the at least one maximum criterion, overfilling of the receptacle can be prevented. Advantageously, manual monitoring of the receptacle's filling state is not necessary, since the control device controls the filling state of the receptacle using the at least one maximum criterion. The at least one maximum criterion can be determined in a flexible and changeable manner and can be stored in the memory of the control device. Furthermore, several maximum criteria can be combined with one another, for example in a cumulative or alternative or specific hierarchical manner.

[0081] The at least one maximum criterion may include, inter alia, one or more of: a maximum number of the one or more sorted book blocks in the receptacle; a maximum height of a stack formed by the one or more sorted book blocks in the receptacle as measured by a height sensor of the sorting device; a maximum height of a stack formed by the one or more sorted book blocks in the receptacle determined using a sum of the number of pages of the sorted book blocks in the receptacle, where the controller is configured to receive the number of pages of the book block from a printing system arranged upstream of the sorting device and a standard paper thickness stored in the memory; a maximum height of a stack formed by the one or more sorted book blocks in the receptacle determined from the height of the one or more book blocks encoded in the at least one identification tag; a maximum time reached since the insertion of a first book block in the receptacle; and an arrival of a book block from the first input conveyor that is a size larger than the size of the last book block of a given job stored in the memory to be inserted in the receptacle and the topmost book block in the receptacle.

[0082] In some embodiments, a rotation device is provided that is disposed on the first input conveyor and configured to rotate the book blocks of the first input conveyor by an angle, preferably 90°, about an axis perpendicular to the conveying surface of the first input conveyor.

[0083] By using the rotating device, when the insertion device is configured to insert the book block in a direction perpendicular to the conveying direction of the first input conveyor, the book block can be rotated so that it is inserted spine first into the receptacle. Inserting the book block spine first provides the advantage of reducing the probability of damaging the book block. The rotating device can therefore be used to change the orientation of the book block to match the orientation of the insertion device or receptacle, respectively. Thus, in some embodiments, the rotating device may be configured to rotate the book block by a different angle depending on the orientation of the insertion device or receptacle, respectively.

[0084] The rotation device, in some embodiments, is configured to rotate the book block by 180 degrees.

[0085] In some embodiments, the rotating device comprises a first guide plate and a second guide plate arranged downstream of the first guide plate, the second guide plate being adjacent to each other by forming a stop configured to stop a corner of the book block and having an edge oriented perpendicular to the conveying direction and parallel to the conveying plane. In some embodiments, the first guide plate and the second guide plate may not be adjacent to each other. The second guide plate may be provided with an edge forming a stop configured to stop a corner of the book block. The edge may be oriented perpendicular to the conveying direction or may have a curved orientation.

[0086] By stopping the corners of the book block, the first input conveyor continues to drive the book block along the transport direction, so that the book block can be forcibly rotated. Providing the rotating device with the first guide plate and the second guide plate for rotating the book block is a simple mechanism for rotating the book block, and is particularly suitable for book blocks with a small planar size.

[0087] In some embodiments, the first input conveyor is preferably configured to align the book blocks to the first guide plate and / or the second guide plate by a plurality of rollers controlled by the control device and individually rotatable about a first axis perpendicular to the conveying direction and parallel to the conveying surface of the first input conveyor, and about a second axis perpendicular to the conveying direction and perpendicular to the conveying surface of the first input conveyor.

[0088] A number of individually controllable rollers allow for flexible adaptation of the orientation and / or position of the book blocks on the first input conveyor.

[0089] In some embodiments, the sorting device includes a transmitting device, and the control device is configured to control the transmitting device to transmit a receptacle identification of the receptacle to another processing system for the book blocks, preferably located downstream of the first output conveyor.

[0090] The sending device may send the information to another processing system of the book block by a wired or wireless connection.

[0091] In some embodiments, the sorting device includes at least one receptacle reader configured to read a receptacle identification from a receptacle identification tag of a receptacle and to transmit the receptacle identification to the controller.

[0092] The receptacle tag may be, for example, a data matrix code, a bar code, a QR code, an RFID tag, etc. The at least one receptacle reader may comprise a data matrix code reader, a bar code reader, a QR code reader, an RFID reader, etc. The at least one receptacle reader may transmit the receptacle identification information to the controller via a wired or wireless connection.

[0093] In some embodiments, the control device is configured to store each of the book block identification information read from the at least one identification tag of the book blocks loaded in the receptacle and to control a transmitting device to transmit the book block identification information of one or more book blocks in each of the receptacles when each of the receptacles is full, preferably to another processing system for book blocks located downstream of the first output conveyor.

[0094] In particular, the transmitting device can transmit the book block identification information together with the receptacle identification information, which advantageously allows for improved tracking of the sorted book blocks. Tracking of the sorted book blocks using the receptacle identification information and the book block identification information improves the connectability of the sorting device to other processing systems for book blocks and the integrability of the sorting device in book production systems.

[0095] In some embodiments, the control device is configured to control a transmitting device to further transmit the sorting information, the maximum criterion used to determine that the receptacle is full, the number of book blocks in the receptacle derived from the maximum criterion used to determine that the receptacle is full, the sequence or order of the one or more book blocks loaded into the receptacle, and at least one of a timestamp, book block size or job identification of the one or more book blocks loaded into each of the full receptacles, preferably to another processing system for book blocks located downstream of the first output conveyor.

[0096] By providing additional information, the tracking of book blocks through the sorting process can be further improved.

[0097] In some embodiments, the sorting device comprises a second output conveyor configured to sort one or more non-productive book blocks from the filling station, and the control device comprises a memory storing a sorting schedule and is configured to control the insertion device, preferably a deflector of the insertion device, to sort one or more book blocks having sorting information matching the sorting schedule onto the second output conveyor.

[0098] By sorting non-productive book blocks onto a second output conveyor, non-productive book blocks can be prevented from being inserted into the receptacle.

[0099] The sorting schedule may, for example, define an entry in a particular field of the identification tag as matching sorting information for sorting the book block to the second output conveyor. For example, a field entry beginning with "0 " may be defined in the sorting schedule as matching sorting information for sorting non-productive book blocks.

[0100] An example of a non-productive book block is a test book block, for example, a test book block that is produced for testing a book production line.

[0101] Another example of a non-productive book block may be a quality book block, which is used for quality assurance purposes, especially for a further processing system of book blocks arranged downstream of the sorting device.

[0102] In some embodiments, the control device is configured to control the inserting device, preferably the deflector of the inserting device, to sort the error book block to the second output conveyor. The error book block may result from, for example, a jam at the filling station or a book with quality defects. In yet another example, the error book block may not have an identification tag on the top page due to a printing interruption. Thus, at least one book block reader may not be able to read the sorting information and / or the book block identification information, and the control device may recognize the book block as an error book block. Additional tracking and / or sequence control or page counting in the upstream printing process may be used by the control device, respectively, to identify an incomplete book block as an error book block, for example when the signature is missing in the book block stack even though the top page may have an identification tag.

[0103] In some embodiments, the at least one book block reader is configured to read book block size information from the at least one identification tag, and the control device is configured to use the book block size information to control a conveying speed of the first input conveyor and / or the insertion device, preferably a deflector of the insertion device.

[0104] By controlling the speed of the first input conveyor and / or the insertion device depending on the size of the book blocks being transported, overloading of the sorting device can be reduced or prevented.

[0105] According to another aspect, the present invention is directed to a method of operating a sorting apparatus for sorting book blocks according to the present disclosure, comprising the steps of: supplying unsorted book blocks to a filling station of the sorting apparatus by a first input conveyor; supplying empty receptacles to the filling station by a second input conveyor; receiving sorting information for one or more book blocks by a controller; and controlling a plurality of insertion devices by the controller to sort the one or more book blocks into the receptacles using the sorting information.

[0106] In some embodiments, the method includes reading, by the controller, sorting information from at least one identification tag of the book block with at least one book block reader.

[0107] According to another aspect, the present invention is directed to a control device for controlling a sorting device for sorting book blocks according to the present disclosure, the control device comprising a computer configured to receive sorting information of the book blocks, compare the sorting information with sorting categories that define the matching sorting information, assign at least one sorting category to each of the insertion devices, select an insertion device having an assigned sorting category that matches the sorting information of the book blocks, and control the selected insertion device to sort the book blocks into receptacles.

[0108] In some embodiments, the controller is configured to receive sorting information read from at least one identification tag of the book block by at least one book block reader.

[0109] According to another aspect, the present invention is directed to a computer program product comprising computer program code configured to control a computer of a control device according to the present disclosure, the computer being configured to perform the steps of receiving sorting information of book blocks, comparing the sorting information with sorting categories defining matching sorting information, assigning at least one sorting category to each of the insertion devices, selecting an insertion device having an assigned sorting category that matches the sorting information of the book blocks, and controlling the selected insertion device to sort the book blocks into receptacles.

[0110] In some embodiments, the computer program code is configured to control the computer of the controller such that the computer receives sorting information read from at least one identification tag of the book block by the at least one book block reader.

[0111] According to another aspect, the present invention is directed to a non-transitory computer-readable medium having stored thereon a computer program product according to the present disclosure.

[0112] According to another aspect, the present invention is directed to a book production system including a sorting apparatus according to the present disclosure.

[0113] In some embodiments, the book production system includes a separate processing system for book blocks disposed downstream of the sorting device, the sorting device configured to output a full receptacle having one or more sorted book blocks to the separate processing system for book blocks. [Brief description of the drawings]

[0114] The invention will now be explained in greater detail by means of an exemplary embodiment with reference to the schematic drawings.

[0115] [Figure 1]FIG. 1 shows a top view of one embodiment of a sorting device. [Diagram 2] FIG. 2 shows a top view of a portion of the sorting apparatus of FIG. 1 without the transport device. [Diagram 3] FIG. 3 shows a cross-sectional view of the filling station of the sorting apparatus along line AA in FIG. [Figure 4] FIG. 4 shows a top view of the rotating device. [Diagram 5] FIG. 5 shows a perspective view of the sorting device of FIG. 1 with a hood. [Figure 6] FIG. 6 illustrates a top view of one embodiment of a sorting device. [Figure 7] FIG. 7 shows a perspective view of one embodiment of a sorting device. [Figure 8] FIG. 8 shows details of the roller conveyor of the first input conveyor shown in the sorter embodiment of FIG. [Figure 9] FIG. 9 shows details of the second roller conveyor of the embodiment of the sorting device shown in FIG. [Figure 10] FIG. 10 shows a cross-sectional view of the filling station of the sorting apparatus along line AA in FIG. [Figure 11] FIG. 11 shows a perspective view of the sorting device of FIG. 6 with a hood. [Figure 12] FIG. 12 shows a perspective view of the sorting device of FIG. 7 with a hood. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0116] FIG. 1 shows a top view of an embodiment of a sorting apparatus 10 with a filling station 1 for sorting book blocks 50 into receptacles 51.2. The sorting apparatus 10 typically has a hood covering the inside (see FIG. 5), so in FIG. 1 the interior of the sorting apparatus 10 is shown. The book blocks 50 are fed to the filling station 1 on a first input conveyor 1.1. The first input conveyor 1.1 is designed as a roller conveyor with a number of rollers 1.11 that are individually rotatable around a first axis perpendicular to the conveying direction F1 of the first input conveyor 1.1 and parallel to the conveying plane of the first input conveyor 1.1. The rotating device 2 is arranged on the first input conveyor 1.1 and is configured to rotate the book blocks 50 by 90°. The rotating device 2 is explained in more detail below with reference to FIG. 4. At the first input conveyor 1.1 two book block readers 3 are arranged which are adapted to read sorting information and / or book block identification information from at least one identification tag of the book blocks 50.

[0117] The filling station 1 comprises a feed section 11 arranged downstream of a first input conveyor 1.1. The feed section 11 comprises a feed conveyor 111 adjacent to an end 1.12 of the first input conveyor 1.1. The end 1.12 of the first input conveyor 1.1 is designed as a belt conveyor bridging the roller conveyor part of the first input conveyor 1.1 and the feed conveyor 111.

[0118] The second input conveyor 1.2 is arranged parallel to the first input conveyor 1.1 and supplies empty receptacles 51.1 to the filling station 1 in the direction F2. The end of the second input conveyor 1.2 is arranged partially below the input conveyor 111 and supplies the empty receptacles 51.1 to a waiting station 12 arranged partially below the input conveyor 111. Downstream of the waiting station 12 is arranged a filling station 13 where the receptacles 51.2 are filled with book blocks 50. Full receptacles 51.3 are transferred from the filling station 13 to the first output conveyor 1.3 and transported away from the filling station 1 along the direction F3. Arranged on the second input conveyor 1.2 is a receptacle reader 4 configured to read receptacle identification information from the receptacle identification tags of the receptacles 51.1 supplied to the filling station 1 by the second input conveyor 1.2.

[0119] Four insertion devices 14 are arranged along the supply conveyor 111. Each of the insertion devices 14 comprises a deflector 141 arranged on the supply conveyor 111 and configured to deflect the book blocks 50 from the direction F1 to the respective insertion device 14. Each of the insertion devices 14 further comprises a transfer device 142 comprising a slide configured to transfer the deflected book blocks 50 from the deflector 141 to the respective receptacle 51.2. The deflector 141 comprises a number of rollers 1411 controlled by the control device 20, the rollers 1411 being individually rotatable about a first axis A1 perpendicular to the conveying direction F1 and parallel to the conveying plane of the first input conveyor 1.1. The control device 20 can also be a remotely arranged control device. The rollers 1411 are also individually rotatable about a second axis perpendicular to the conveying direction F1 and to the conveying plane of the first input conveyor 1.1. The second axis therefore points out of the drawing plane of FIG. 1. By rotating the roller 1411 about the first axis A1, the book block 50 can be conveyed in the conveying direction F1. By rotating the roller 1411 about the second axis, the book block 50, which is located on the rotating roller 1411, can be deflected from the conveying direction F1. In the illustrated embodiment, the roller 1411 can be rotated by a maximum of 90° about the second axis. By rotating the roller 1411 by 90° about the second axis, the first axis A1 is rotated on a new first axis A1′ in such a way that the book block 50 lying on the roller 1411 rotating about the second axis can be deflected from the conveying direction F1 and conveyed in the direction of the conveying device 142.

[0120] 2 is a top view of the sorting device 10 of FIG. 1 without the transfer device in order to better see the waiting places 12 and the filling places 13 of the filling station 1. The waiting places 12 are arranged to respectively place empty receptacles 51.1 received from the second input conveyor 1.2. Each of the waiting places 12 is arranged upstream of the filling place 13 such that the empty receptacle 51.1 can be moved from the waiting place 12 to the filling place 13 when the filling place 13 is not occupied. When the empty receptacle 51.1 is moved to the filling place 13, the resulting free waiting place 12 is again occupied by an empty receptacle 51.1 from the adjacent waiting place 12 or from the second input conveyor 1.2. It can thus be advantageously ensured that the waiting place 12 is always supplied with empty receptacles 51.1 as required. In the filling place 13, the receptacles 51.2 are filled by one or more book blocks 50 by the transfer device. Each full receptacle 51.3 or receptacle 51.3 meeting the maximum criteria can be moved from the filling location 13 to the first output conveyor 1.3 and conveyed away from the filling station 1. The second input conveyor 1.2 comprises a pre-waiting location 1.21 for waiting empty receptacles 51.1. The pre-waiting locations 1.21 are arranged with one or more sensors 1.22 and are configured to notify an operator or the control device 20 if one or more of the pre-waiting locations 1.21 are not occupied.

[0121] 3 is a cross-sectional view of the filling station 1 of FIG. 1 along the line AA. The inserting device 14 with the deflector 141 on the supply conveyor 111 of the supply section 11 is shown. The transport device 142 of the inserting device 14 includes a slide 1421 with an extensible end 1422. Furthermore, the slide 1421 is rotatable about a rotation axis D, and by rotating the slide 1421 and extending and retracting the end 1422, the end 1422 can be inserted at least partially into the receptacle 51.2 to insert one or more book blocks 50 into the receptacle 51.2 and can be retracted from the receptacle 51.2 so that one or more book blocks 50 are deposited in the receptacle 51.2. The transport device 142 further includes a rake device 1423 arranged above the slide 1421 and rotatable together with the slide 1421. The rake device 1423 comprises two fingers 1423 which are moved in a loop by a belt 1425. The fingers 1423 serve to block the book block 50 on the slide 1421 and to control the sliding movement of the book block 50 along the slide 1421. At the end 1422 of the slide 1421, the fingers 1423 are turned over so that the book block 50 is released and can slide into the receptacle 51.2. The end 1422 and the slide 1421 are configured to deposit the book block 50 with its spine facing the front wall 51.21 of the receptacle 51.2 relative to the receptacle transport direction F4. Preferably, the transport device 142 deposits one or more book blocks 50 such that they strike the front wall 51.21 of the receptacle 51.2 in alignment. Retracting end 1422 from receptacle 51.2 also allows the receptacle 51.2 to be transferred from the filling location 13 to the first output conveyor 1.3 and the empty receptacle 51.1 to be transferred from the waiting location 12 to the filling location 13.

[0122] Figure 3 further shows an empty receptacle 51.1 arranged in a waiting location 12, to which it is transported by rollers 1.23 of the second input conveyor 1.2. The filling station 1 comprises a combined receptacle drive 1.4 arranged to transport the receptacle 51.2 from the filling location 13 to the first output conveyor 1.3 if the receptacle 51.2 is full, and to transport the empty receptacle 51.1 from the waiting location 12 to the filling location 13. The combined receptacle drive 1.4 comprises two parallel belts 1.41 (only one belt is visible in Figure 3) capable of transporting the receptacles 51.1, 51.2 in a conveying direction F4. The belt 1.41 of the receptacle drive 1.4 is arranged between the rollers 1.23 and 1.31 of the second input conveyor 1.2 and the first output conveyor 1.3, respectively. The receptacle drive 1.4 is configured in such a way that the belt 1.41 can be raised above the top level of the rollers 1.23 and 1.31 and lowered to or slightly below the top level of the rollers 1.23 and 1.31, as indicated by the double arrow of the belt 1.41. By raising the belt 1.41 above the top level of the rollers 1.23 and 1.31, the receptacles 51.1, 51.2 are also raised and can be conveyed in the conveying direction F4. By lowering the belt 1.41 to or below the top level of the rollers 1.23, 1.31, the receptacles 51.1, 51.2 are arranged stationary in the waiting station 12 or in the filling station 13, respectively. Furthermore, full receptacles (symbolized by dashed receptacle 51.3) transferred from the filling location 13 can be transported away from the filling station 1 by a first output conveyor 1.3.

[0123] Fig. 4 shows a top view of a turning device 2 arranged on the first input conveyor 1.1. The turning device 2 is configured to turn the book blocks 50 on the first input conveyor 1.1 by 90° around an axis perpendicular to the conveying plane of the first input conveyor 1.1. The turning device 2 comprises a first guide plate 21 and a second guide plate 22 arranged downstream of the first guide plate 21. The first guide plate 21 and the second guide plate 22 adjoin each other by forming a stop 23 having an edge 231 oriented perpendicular to the conveying direction F1 and parallel to the conveying plane of the first input conveyor 1.1.

[0124] Figure 4 shows the book block 50 at different stages or times during its rotation. As shown in the rightmost position, the book block 50 is conveyed on the first input conveyor 1.1 along a conveying direction F1. The book block 50 is aligned with the first guide plate 21 by using a number of rollers 1.11 which are individually rotatable about a first axis perpendicular to the conveying direction F1 and parallel to the conveying surface of the first input conveyor 1.1 and individually rotatable about a second axis perpendicular to the conveying direction F1 and perpendicular to the conveying surface of the first input conveyor 1.1. To illustrate the rotatability of the rollers 1.11, an exemplary roller 1.11a is shown after being rotated about the second axis by an angle α.

[0125] The stops 23 are arranged to stop a corner of the book block 50, so that the book block 50 rotates about an axis perpendicular to the conveying plane as the first input conveyor 1.1 continues to drive the book block 50 in the conveying direction F1. After the 90° rotation, the book block 50 is aligned with the second guide plate 22. Before the rotation, the book block 50 is conveyed along the conveying direction F1 with the spine 501 leading, so that the spine 501 forms the leading edge of the book block 50. After the rotation, the spine 501 is aligned parallel to the second guide plate 22, so that the book block 50 can be deflected with the spine 501 leading to the conveying device and inserted with the spine 501 leading into a receptacle by the conveying device.

[0126] FIG. 4 further shows a book block identification tag 502 disposed on the book block 50, such that sorting information and / or book block identification information can be read from the book block identification tag by one or more book block readers.

[0127] FIG. 5 shows a perspective view of the sorting device 10 of FIG. 1 with a number of hoods 5 covering the interior of the sorting device 10. The hoods 5 are provided with a handle 51 by which the hoods 5 can be opened to access the interior of the sorting device 10. It can be seen that the filling station 1 is constructed in a modular manner with filling station modules 1a, 1b, 1c, 1d, each of which comprises an inserting device, a waiting place and a filling place. Each of the filling station modules 1a to 1d is covered by three hoods 5. An end 1.12 of the first input conveyor 1.1, which bridges the roller conveyor part of the first input conveyor 1.1 and the supply conveyor, can be pivoted away as shown by the double arrow. By pivoting the end 1.12, a space is created in which the filling station modules 1a to 1d can move along the arrow W. Moving one or more of the filling station modules 1a-1d along the direction W is used to access between the filling station modules 1a-1d for maintenance of the filling station 1 and each of the filling station modules 1a-1d. A second input conveyor 1.2 configured to feed empty receptacles to the filling station 1 along the direction F2 is shown in the left part of Fig. 5. For the sake of further clarity, a first output conveyor configured to transport full receptacles from the filling station 1 along the direction F3 is omitted in Fig. 5.

[0128] Figure 6 shows a top view of an embodiment of a sorting apparatus 10' with a filling station 1' for sorting book blocks 50 into receptacles. The sorting apparatus 10' largely corresponds to the embodiment of the sorting apparatus 10 shown in Figure 1. However, in comparison with the sorting apparatus 10 as shown in Figure 1, the sorting apparatus 10' comprises a first input conveyor 1.1' with, for example, a roller conveyor 1.1'a and a band conveyor 1.1'b. Instead of the book blocks 50 arriving from the destacker with an orientation rotated by 90° with respect to the orientation required by the filling station 1', they arrive as a single book block in the orientation required by the filling station 1'.

[0129] The book block reader 3' is arranged on the band conveyor 1.1'b and is configured to read pre-sorting information from at least one identification tag of a book block 50. The pre-sorting information comprises, for example, an identification of a quality book block 50.1 for quality inspection or an identification of an inspection book block 50.1. The pre-sorting information may also comprise an identification of an incomplete book block 50.2.

[0130] The roller conveyor 1.1'a is arranged downstream of the band conveyor 1.1'b and comprises a number of rollers 1.11' which are individually rotatable about a first axis A1 perpendicular to the conveying direction F1 and parallel to the conveying plane of the roller conveyor 1.1'a. The rollers 1.11' are also individually rotatable about a second axis perpendicular to the conveying direction F1 and to the conveying plane of the roller conveyor 1.1'a. The second axis points out of the drawing plane of FIG. 6. By rotating the rollers 1.11' about the first axis A1, the book block 50 can be conveyed in the conveying direction F1. By rotating the rollers 1.11' about the second axis, the book block 50 arranged on the rotating rollers 1.11' can be deflected from the conveying direction F1. In the illustrated embodiment, the rollers 1.11' are rotatable by up to 90° about the second axis. By rotating the roller 1.11' by 90° about the second axis, the first axis A1 rotates on a new first axis A1' so that the book block 50 lying on the roller 1.11' rotating about the second axis can be deflected from the conveying direction F1.

[0131] The rollers 1.11' are controlled by a control device 20' which receives pre-sorting information from the book block reader 3' and in particular controls the rotation of the rollers 1.11' in response to the received pre-sorting information.

[0132] The roller 1.11' can be rotated clockwise and counterclockwise about the first axis A1 or a new first axis A1', respectively, so that after rotating the roller 1.11' about the second axis the book blocks 50 are deflected and transported to both sides of the roller conveyor 1.1'a.

[0133] For example, the quality book block and / or the inspection book block 50.1 may be diverted to the left of the roller conveyor 1.1'a in relation to the conveying direction F1. In this case, the quality book block and / or the inspection book block 50.1 may be transported spine-first into the first output tray 1.13'. The incomplete book block 50.2 may be diverted to the right of the roller conveyor 1.1'a in relation to the conveying direction F1, as will be explained in more detail below with reference to FIG. 8.

[0134] The end 1.12' of the first input conveyor 1.11' is designed as a belt conveyor bridging the roller conveyor 1.1'a and the feed conveyor 111'. Four input devices 14' are arranged along the input conveyor 111'. Each of the inserting devices 14' comprises a deflector 141' arranged on the feed conveyor 111' and configured to deflect the book blocks 50 from the direction F1 towards the respective inserting device 14'. The deflectors 141' comprise a number of rollers 1411' corresponding to the rollers 1411 as shown in the embodiment of FIG. 1. At the downstream end of each of the deflectors 141' a roller conveyor 1111' is arranged with cylindrical rollers 1111'a for transporting the book blocks 50 from one inserting device 14' to the next inserting device 14' along the transport direction F1.

[0135] The second input conveyor 1.2' is arranged parallel to the first input conveyor 1.1' and supplies empty receptacles to the filling station 1' along the direction F2. The end of the second input conveyor 1.2' is arranged partially below the input conveyor 111' and supplies empty receptacles to a waiting area arranged partially below the input conveyor 111'. Full receptacles 51.3 are transported away from the filling station 1' by the first output conveyor 1.3' along the direction F3. A cover 1.31' is arranged in the downstream part of the first output conveyor 1.3' where it leaves the filling station 1' to reduce the risk of injury when reaching into the filling station 1'.

[0136] FIG. 7 shows a top view of an embodiment of a sorting apparatus 10″ comprising a filling station 1″ for sorting book blocks 50 into receptacles. The sorting apparatus 10″ largely corresponds to the embodiment of the sorting apparatus 10′ shown in FIG. 6. However, in comparison with the sorting apparatus 10′ as shown in FIG. 6, the sorting apparatus 10″ comprises, for example, a first input conveyor 1.1″ with a first roller conveyor 1.1″a and a second roller conveyor 1.1″b. The book blocks 50 arrive from the destacker in an orientation rotated by 90° with respect to the orientation required by the filling station 1″. A rotating device 2″ is arranged on the second roller conveyor 1.1″b. The rotating device 2″ will be explained in more detail later with reference to FIG. 9.

[0137] The first roller conveyor 1.1"a comprises a plurality of rollers 1.11", each of which is individually rotatable about a first axis A1 perpendicular to the conveying direction F1 and parallel to the conveying surface of the roller conveyor 1.1"a and is individually rotatable about a second axis perpendicular to the conveying direction F1 and to the conveying surface of the roller conveyor 1.1"a; the first roller conveyor 1.1"a is therefore designed correspondingly to the first roller conveyor 1.1'a, as shown in Figure 6. In particular, the first roller conveyor 1.1"a is configured to be able to deflect and transport the book block 50 to the left and / or right side of the first roller conveyor 1.1"a with respect to the conveying direction F1.

[0138] The second roller conveyor 1.1"b comprises a number of inclined cylindrical rollers 1.11"b which deflect the book blocks 50 arriving at the first input conveyor 1.1" towards the rotating device 2" until they come into contact with the rotating device 2" and are rotated.

[0139] Figure 8 shows a detail of the roller conveyor 1.1'a of the embodiment of the sorting device 10' as shown in Figure 6. The book blocks 50 can be deflected from the conveying direction F1 by individually rotating the rollers 1.11' about a second axis perpendicular to the conveying plane of the roller conveyor 1.1'a. In the figure, one of the rollers 1.11' is shown after it has rotated by a given angle in order to illustrate the rotatability of the rollers 1.11'.

[0140] The book block can be transported perpendicular to the transport direction F1 by rotating the rollers 1.11' by 90 degrees around the second axis and then rotating the rollers 1.11' rotated around the second axis by a further 90 degrees around a first axis parallel to the transport direction F1.

[0141] As shown in Fig. 8, the quality and / or inspection book blocks 50.1 are conveyed to the left of the roller conveyor 1.1'a in relation to the conveying direction F1 and are received by the first output tray 1.13'. The defective book blocks 50.2 are conveyed to the right of the roller conveyor 1.1'a in relation to the conveying direction F1 and are received by the second output tray 1.14'. The description of the roller conveyor 1.1'a can be equally applied to the first roller conveyor 1.1"a of the embodiment of the sorting device 1" as shown in Fig. 7.

[0142] FIG. 9 shows a detail of the second roller conveyor 1.1″b of the embodiment of the sorting device 10″ as shown in FIG. 7, in which a rotating device 2″ is arranged on the second roller conveyor 1.1″b. The rotating device 2″ is configured to rotate the book blocks 50 on the second roller conveyor 1.1″b by 90° around an axis perpendicular to the conveying plane of the second roller conveyor 1.1″b, the rotating device 2″ comprising a first guide plate 21″ and a second guide plate 22″ arranged downstream of the first guide plate 21″. The second guide plate 22″ comprises a stop 23″ with a curved edge 231″.

[0143] Figure 9 shows the book block 50 at different stages or times during its rotation. As shown in the rightmost position, the book block 50 is transported on the second roller conveyor 1.1"b along the transport direction F1. By means of the inclined cylindrical rollers 1.11"b, the book block 50 arriving at the first input conveyor 1.1" is deflected towards the turning device 2" until it comes into contact with the turning device 2" and is turned. In particular, the inclined cylindrical rollers 1.11"b drive the book block 50 towards the first guide plate 21", so that the book block 50 is aligned with the first guide plate 21".

[0144] The stops 23" are arranged to stop a corner of the book block 50, which causes it to rotate about an axis perpendicular to the conveying plane as the second roller conveyor 1.1"b continues to drive the book block 50 in the conveying direction F1. After the book block 50 has been rotated by 90° it is aligned with the second guide plate 22". Before the rotation the book block 50 is conveyed along the conveying direction F1 with the spine 501 leading, so that the spine 501 forms the leading edge of the book block 50. After the rotation the spine 501 is aligned parallel to the second guide plate 22 so that the book block 50 can be diverted with the spine 501 leading to the conveying device and inserted by the conveying device into a receptacle with the spine 501 leading.

[0145] Figure 10 shows a cross-section of the filling station 1' along the line AA in figure 6. Analogous to the embodiment of the sorting device 10 shown in figure 1, an inserting device 14' is shown with a deflector 141' on the feed conveyor 111' of the feed section 11'. The transport device 142' of the inserting device 14' corresponds to the transport device 142 shown in figure 3 and also comprises, for example, a pivotable slide 1421' with a telescopic end for inserting one or more book blocks 50 into the receptacle 51.2. The book blocks 50 are deposited with their spine facing the front wall 51.21 of the receptacle 51.2 with respect to the receptacle transport direction F4.

[0146] Compared with the embodiment shown in FIG. 3, the filling station 1' comprises a plurality of pivotable lifting plates 1.5' respectively arranged at the filling locations 13'. The lifting plates 1.5' are configured to pivot so that the lifting plates 1.5' form a slope for the receptacle 51.2. Due to the slope formed by the lifting plates 1.5', the book blocks 50 deposited in the receptacle 51.2 can be guided to be aligned and in contact with the front wall 51.21 of the receptacle 51.2. Especially when the deposition speed is high, the book blocks tend to bounce off the front wall 51.21 of the receptacle 51.2. By using the re-lifting plates 1.5', the effect of the bounce can be mitigated, and proper alignment of the book blocks in the receptacle 51.2 can be achieved even when the deposition speed is high.

[0147] After filling of the receptacle 51.2, each of the lifting plates 1.5' rotates back or down and the receptacle 51.2 is transported from the filling station 13' to the first output conveyor 1.3' using the combined receptacle drive 1.4' and belt 1.41'. Another empty receptacle is transported from the waiting station 12' to the filling station 13' by the combined receptacle drive 1.4' and belt 1.41' in the same manner as described in connection with FIG.

[0148] Figure 11 shows a perspective view of the sorting device 10' of Figure 6 with a hood 5' covering the inside of the sorting device 10'. In comparison with the embodiment of the sorting device 10 as shown in Figure 5, it can be seen that the hoods 5' of the two rows have the same inclination. In comparison with the sorting device 10, the variety of hood shapes can be reduced.

[0149] It can also be seen that the band conveyor 1.1'b exhibits an inclination towards the roller conveyor 1.1'a. As described above in relation to figures 6 and 8, the first output tray 1.13' is arranged to the left of the roller conveyor 1.1'a with respect to the conveying direction F1. To the right of the roller conveyor 1.1'a with respect to the conveying direction F1, a second output tray 1.14' for incomplete book blocks is arranged. Incomplete book blocks received by the second output tray 1.14' drop into an exchangeable container 1.141'. Depending on the pre-sorting information read by the book block reader 3', the book blocks are transported to the filling station 1', the first output tray 1.13' or the second output tray 1.14'.

[0150] FIG. 12 shows a perspective view of the sorting device 10" of FIG. 7 with a hood 5" covering the interior of the sorting device 10". The first roller conveyor 1.1"a and the second roller conveyor 1.1"b with inclined cylindrical rollers 1.11"b can be seen.

Claims

1. A sorting apparatus (10, 10, 10") for sorting book blocks (50), comprising a filling station (1, 1', 1") for sorting one or more book blocks into receptacles (51.1, 51.2, 51.3), and a first input conveyor (1. a second input conveyor (1.2, 1.2') configured to supply empty receptacles (51.1) to said filling station, and a first output conveyor (1.3, 1.3') configured to transport full receptacles (51.3) away from said filling station, said filling station comprising a plurality of insertion devices (14, 14') configured to insert one or more book blocks into said receptacles, and a control device (20, 20') configured to receive sorting information for one or more book blocks and to control said insertion devices to sort one or more book blocks into said receptacles using said sorting information.

2. 2. The sorting device (10, 10', 10") of claim 1, further comprising at least one book block reader (3, 3', 3") configured to read the sorting information from at least one identification tag (502) of a book block (50), and the control device (20, 20') is configured to receive the sorting information from the at least one book block reader.

3. 2. The sorting device (10, 10', 10") of claim 1, wherein the control device (20, 20') comprises a memory having stored therein a sorting category schedule having sorting categories each defining matching sorting information, each of the insertion devices (14, 14') being assigned at least one sorting category, and the control device is configured to select an insertion device having an assigned sorting category that matches the sorting information of the book block (50) and to control the selected insertion device to sort the book block into a receptacle (51.1-3).

4. 4. The sorting device (10, 10', 10") of claim 3, wherein the sorting classification schedule comprises two or four book cover sorting categories for sorting one or more book blocks (50) according to the book covers for the one or more book blocks.

5. 2. The sorting apparatus (10, 10', 10") according to claim 1, wherein the first input conveyor (1.1, 1.1', 1.1"), the second input conveyor (1.2, 1.2'), and the first output conveyor (1.3, 1.3') are arranged in parallel.

6. 2. The sorting device (10, 10', 10") according to claim 1, wherein the control device (20, 20') controls the first input conveyor (1.1, 1.1', 1.1") and / or the first output conveyor (1.3, 1.3') and / or the second input conveyor (1.2, 1.2') so that the time taken to sort the book blocks (50) supplied from the first input conveyor into the receptacles (51.1-3) is longer than the time taken by the first output conveyor to transfer a full receptacle (51.3) from the filling station (1, 1', 1") and replace the full receptacle with an empty receptacle (51.1).

7. 2. A sorting apparatus (10, 10', 10") according to claim 1, wherein the filling station (1, 1', 1") comprises a plurality of filling locations (13, 13') arranged in a row, each of the filling locations being arranged on said insertion device (14, 14') and configured to place one or more book blocks (51.1-3) at said filling location such that each insertion device can insert one or more book blocks (50) into receptacles (51.1-3) arranged at said filling location.

8. 8. A sorting apparatus (10, 10', 10") according to claim 7, wherein the filling station (1, 1', 1") comprises a plurality of waiting locations (12, 12', 12") arranged in a row so as to respectively position empty receptacles (51.1) received from the second input conveyor (1.2, 1.2'), each of the plurality of waiting locations being arranged upstream with respect to the filling location (13, 13') so that an empty receptacle can be moved from the waiting location to the filling location when the filling location is unoccupied.

9. 9. The sorting apparatus of claim 8, wherein the filling station comprises a plurality of first receptacle drives configured to independently transport empty receptacles from each of the waiting locations (12) to the filling location.

10. 10. The sorting apparatus of claim 9, wherein the filling station comprises a plurality of second receptacle drives configured to independently transport full receptacles from each of the filling locations to the first output conveyor.

11. 11. The sorting apparatus of claim 10, wherein the control device is configured to control the first receptacle drive and the second receptacle drive so that the transport of full receptacles from the filling location to the first output conveyor and the transport of empty receptacles from the waiting location to the filling location occur simultaneously.

12. 9. The sorting apparatus (10, 10', 10") according to claim 8, wherein the filling station (1, 1', 1") comprises a plurality of compound receptacle drives (1.4, 1.4') for each of the waiting locations (12, 12') and / or the filling locations (13, 13'), the compound receptacle drives (1.4, 1.4') being configured to transport empty receptacles (51.1) from each of the waiting locations to the respective downstream filling locations and to transport full receptacles (51.3) from each of the filling locations to the first output conveyor (1.3, 1.3').

13. 8. The sorting device (10') according to claim 7, wherein the filling station (1') comprises a plurality of rotatable lifting plates (1.5') respectively arranged in the filling locations (13'), the plurality of rotatable lifting plates (1.5') being configured to rotate to form a ramp for the receptacles (51.2) respectively arranged in the filling locations (13').

14. 2. The sorting apparatus (10, 10', 10") according to claim 1, wherein the insertion devices (14, 14') each comprise a deflector (141, 141') controlled by the control device (20, 20'), the deflector configured to deflect one or more book blocks (50) towards the respective insertion device (14, 14') from the conveying direction (F1) of the first input conveyor (1.1, 1.1', 1.1"), the deflector being arranged along the supply section (11, 11') of the filling station (1, 1', 1") arranged downstream of the first input conveyor.

15. 15. The sorting device (10, 10', 10") according to claim 14, wherein the deflector (141, 141') comprises a plurality of rollers (1411, 1411') controlled by a control device (20, 20'), the rollers (1411, 1411') being individually rotatable about a first axis (A1, A1') perpendicular to the conveying direction and parallel to the conveying surface of the first input conveyor (1.1, 1.1', 1.1") in order to convey book blocks (50) in the conveying direction, and about a second axis perpendicular to the conveying direction and perpendicular to the conveying surface of the first input conveyor in order to deflect one or more book blocks from the conveying direction.

16. A sorting device (10, 10', 10") as described in Claim 14, wherein a filling location (13, 13') is arranged between the deflector (141, 141') and the first output conveyor (1.3, 1.3'), and a part of the second input conveyor (1.2, 1.2') is arranged below the supply section (11, 11').

17. 15. The sorting device (10) of claim 14, further comprising a light barrier arranged on the deflectors (141), the light barrier configured to transmit an occupancy signal to the control device (20) when a book block (50) is present in the respective deflector.

18. 15. A sorting apparatus (10, 10', 10") according to claim 14, wherein each of the insertion devices (14, 14') comprises a transfer device (142, 142') configured to transfer one or more deflected book blocks (50) from the deflector (141, 141') to the respective receptacle (51.2), preferably comprising a slide (1421, 1422, 1421').

19. 19. The sorting apparatus (10, 10', 10") according to claim 18, wherein the transport devices (142, 142') each comprise an end (1422) at least partially positionable in and retractable from the interior space of the receptacle (51.2).

20. 20. The sorting apparatus (10, 10', 10") according to claim 19, wherein the final height of the end (1422) of the transport device (142, 142') when placed in the interior space of the receptacle (51.2) is variable.

21. 2. A sorting apparatus (10, 10', 10") according to claim 1, wherein the filling station (1, 1', 1") comprises a plurality of ejection devices (1.4, 1.4'), preferably in the form of one or more receptacle drives (1.4, 1.4'), controlled by the control device (20, 20') and configured to transfer full receptacles (51.2-3) to the first output conveyor (1.3, 1.3').

22. 22. The sorting apparatus (10, 10', 10") according to claim 21, wherein the control device (20, 20') comprises a memory in which the sorted book blocks of the receptacle (51.2-3) have at least one maximum criterion, and the control device (20, 20') is configured to determine that the receptacle (51.2-3) is a full receptacle and to control the ejection device (1.4, 1.4') to transfer the receptacle to the first output conveyor (1.3, 1.3') if one or more sorted book blocks of the receptacle satisfy the at least one maximum criterion.

23. The at least one maximum criterion is a maximum height of a stack formed by the one or more sorted book blocks of the receptacle (51.2-3), a maximum number of the one or more sorted book blocks (50) of the receptacle (51.2-3), a maximum height of a stack formed by the one or more sorted book blocks of the receptacle measured by a height sensor of the sorting device, and a maximum height of a stack formed by the one or more sorted book blocks of the receptacle determined using the sum of the number of pages of the sorted book blocks of the receptacle, and the control device (20, 20') receives the number of pages of the book blocks from a printing system arranged upstream of the sorting device and a standard paper thickness stored in the memory.

23. The sorting apparatus (10, 10', 10") of claim 22, wherein the sorting apparatus (10, 10', 10") is configured to receive a maximum height of a stack formed by the sorted one or more book blocks in the receptacle determined from heights of the one or more book blocks encoded in at least one identification tag; a maximum time reached since insertion of a first book block into the receptacle; a last book block of a given job stored in the memory being inserted into the receptacle; and arrival of a book block from the first input conveyor that is larger in size than the size of the topmost book block in the receptacle.

24. 2. The sorting apparatus (10, 10') according to claim 1, further comprising a rotating device (2, 2") arranged on the first input conveyor (1.1, 1.1") and configured to rotate the book blocks (50) of the first input conveyor by an angle (α) around an axis perpendicular to the conveying plane of the first input conveyor.

25. 25. The sorting apparatus (10, 10") according to claim 24, wherein the rotating device (2, 2") comprises a first guide plate (21, 21") and a second guide plate (22, 22") arranged downstream of the first guide plate, the second guide plate (22, 22") having edges (231, 231") forming stops (23, 23") configured to stop corners of the book blocks (50), the edges being perpendicular to the conveying direction (F1) of the first input conveyor (1.1, 1.1', 1.1") and oriented parallel to the conveying plane or curved.

26. 25. The sorting device (10) according to claim 24, wherein the rotating device (2) comprises a first guide plate (21) and a second guide plate (22) arranged downstream of the first guide plate, the second guide plates (22) being adjacent to each other by forming stops (23) configured to stop corners of the book blocks (50), and having edges (231) oriented perpendicular to the first input conveyor (1.1, 1.1', 1.1") and parallel to the conveying plane.

27. 26. The sorting device (10) of claim 25, wherein the first input conveyor (1.1) is configured to align the book blocks (50) with the first guide plate (21) and / or the second guide plate (22) by means of a plurality of rollers (1.11), the plurality of rollers (1.11) being controlled by the control device (20) and being individually rotatable about a first axis perpendicular to the conveying direction and parallel to the conveying surface of the first input conveyor, and about a second axis perpendicular to the conveying direction and perpendicular to the conveying surface of the first input conveyor.

28. 26. The sorting apparatus (10") of claim 25, wherein the first input conveyor (1.1") comprises a first roller conveyor (1.1"a) and a second roller conveyor (1.1"b), the first roller conveyor being disposed downstream relative to the second roller conveyor, the second roller conveyor comprising a plurality of inclined cylindrical rollers.

29. 2. The sorting device (10') according to claim 1, wherein the first input conveyor (1.1') comprises a roller conveyor (1.1'a) and a band conveyor (1.1'b), the roller conveyor being arranged downstream of the band conveyor.

30. 2. The sorting apparatus (10', 10") according to claim 1, wherein a first output tray (1.13', 1.13") is disposed on a first side of the first input conveyor (1.1', 1.1").

31. 2. The sorting apparatus (10', 10") according to claim 1, wherein a second output tray (1.14') is arranged on a second side of the first input conveyor (1.1', 1.1").

32. 31. The sorting device (10', 10") of claim 30, wherein the control device (20') is configured to receive pre-sorting information from a book block reader (3, 3') and to control the first input conveyor (1.1', 1.1") to transport book blocks (50, 50.1, 50.2) to the filling station (1, 1', 1"), the first output tray (1.13') or the second output tray (1.14') in response to the received pre-sorting information.

33. 2. The sorting apparatus (10, 10', 10") according to claim 1, further comprising a transmitting device, wherein the control device (20, 20') is configured to control the transmitting device to transmit a receptacle identification of the receptacle (51.1-3) to a separate processing system for book blocks, preferably arranged downstream of the first output conveyor (1.3, 1.3').

34. 34. The sorting apparatus (10, 10', 10") according to claim 33, comprising at least one receptacle reader (4) configured to read the receptacle identification from the receptacle identification tag of the receptacle (51.1-3) and to transmit the receptacle identification to the control device (20, 20').

35. 34. The sorting apparatus (10, 10', 10") according to claim 33, wherein the control device (20, 20') is configured to store each of the book block identification information read from at least one identification tag (502) of the book blocks (50) loaded in the receptacles (51.1-3), and to control the transmitting device to transmit, when each of the receptacles is full, the book block identification information of one or more book blocks in each of the receptacles to another processing system for book blocks located downstream of the first output conveyor (1.3, 1.3').

36. 36. The sorting apparatus (10, 10', 10") according to claim 35, wherein the control device (20, 20') is configured to control the transmitting device (10, 10', 10") to further transmit the sorting information, the maximum criterion used to determine that the receptacle (51.2-3) is full, the number of book blocks (50) in the receptacle (51.2-3) derived from the maximum criterion used to determine that the receptacle is full, the sequence or order of the one or more book blocks filled in the receptacle, and at least one of a timestamp, book block size or job identification of the one or more book blocks filled in each full receptacle to another processing system of book blocks located downstream of the first output conveyor (1.3, 1.3').

37. 2. The sorting apparatus (10, 10', 10") of claim 1, further comprising a second output conveyor configured to sort one or more non-productive book blocks from the filling station, wherein the control device (20, 20') comprises a memory having a sorting schedule stored therein and is configured to control the insertion device to sort one or more book blocks having sorting information that matches the sorting schedule onto the second output conveyor.

38. 2. The sorting apparatus (10, 10', 10") of claim 1, wherein at least one book block reader (3, 3') is configured to read book block size information from at least one identification tag (502), and wherein the control device (20, 20') is configured to control the conveying speed of the first input conveyor (1.1, 1.1', 1.1") and / or the insertion device (14, 14') using the book block size information.

39. 39. A method of operating a sorting apparatus (10, 10', 10") for sorting book blocks (50) according to any one of claims 1 to 38, comprising the steps of: feeding unsorted book blocks to a filling station (1, 1', 1") of said sorting apparatus by a first input conveyor (1.1, 1.1', 1.1"); feeding empty receptacles (51.1) to said filling station (1, 1', 1") by a second input conveyor (1.2, 1.2'); receiving sorting information for one or more book blocks by a control device (20, 20'); and controlling by said control device a plurality of insertion devices (14, 14') to sort one or more book blocks into receptacles (51.1-3) using the sorting information.

40. 39. A control device (20, 20') for controlling a sorting device (10, 10', 10") for sorting book blocks (50) according to any one of claims 1 to 38, comprising a computer configured to receive sorting information of the book blocks, compare the sorting information with sorting categories defining the matching sorting information, assign at least one sorting category to each of the insertion devices (14, 14'), select an insertion device having an assigned sorting category that matches the sorting information of the book block, and control the selected insertion device to sort the book block into a receptacle (51.1-3).

41. 41. A computer program product comprising computer program code configured to control a computer of a control device (20, 20') according to claim 40, wherein the computer is configured to perform the following steps: receiving sorting information of a book block (50); comparing the sorting information with sorting categories defining matching sorting information; assigning at least one sorting category to each of the insertion devices (14, 14'); selecting an insertion device having an assigned sorting category that matches the sorting information of the book block; and controlling the selected insertion device to sort the book block into a receptacle (51.1-3).

42. 42. A non-transitory computer readable medium having stored thereon the computer program product of claim 41.

43. A book production system comprising a sorting device (10, 10', 10") according to any one of claims 1 to 38.

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