EP1918122B1 - Arrangement of a rotary cutting machine and book covering machine - Google Patents

Description

The invention relates to an arrangement with a circular scissor device for cutting a flat blank and arranged in the transport direction of the blank downstream of the circular scissors device Book Covering machine for obtaining the flat blank, wherein the book cover machine has a feed station and a Zusammenführstation and wherein the feed station for supplying a cut flat blank to the downstream merge station and the merge station are configured to merge the flat blank with a cover.

Buchele machines of the company Hörauf are state of the art. In the book cover machine, a one-piece or multi-part blank is provided in cycles at several workstations with a reference. The finished, pre-cut blanks can be used as book covers or for file folders or game plans. In the production of, for example, a book cover, in which a multi-part blank is needed, it may be provided to supply the ready-cut blanks in stacked form of the device. It is also known to use Buchdeckenmsschinen containing a circle scissors. By the Circular shears, the blanks are cut directly into the book cover machine in two or three parts, so that, depending on the requirement, a part for the front and back of the book and possibly for the spine is cut. In the known devices with circular shear the circular shear device was always firmly installed. If now a one-piece blank should be provided with a cover with a book cover machine with circular scissors device, the knives of the circular scissors could indeed be brought into a position such that the blank would not be cut in the circular scissor device, but the blank nevertheless had to pass through the circular scissors device. The present in the device for transporting the blank, the slider and / or gripper and guide rails included, work in cycles and transport the blank from one workstation to the next. In a format change, the workstations and the means of transport of the book cover machine must be converted to the new format. If blanks are processed more frequently with the device in which the circular scissor device is not required, the transport and guide means in the circular scissor device must nevertheless be readjusted during a format change. This means a high set-up effort. In addition, it is often the case today that the quantities of a production order are becoming ever smaller, so that the device has to be changed very frequently to changing formats. A device for obtaining a flat blank with a reference having a fixed circular shear, therefore, is very inflexible in such cases.

From the US Pat. No. 6,190,298 1 There is known a machine for making booklet folders. Flexible material is fed from a roll, provided with a stapling device and reinforced in the center with an adhesive tape. The supplied flexible material can be cut with a cutting device in the transverse direction.

Out US 2002/0061239 A1 an arrangement with a circular scissor device and a book cover machine is known.

The invention has for its object to provide an arrangement which has a higher flexibility with changing use requirements.

The object is achieved in that the circular scissor device and the book cover machine have mutually adapted fastening means for coupling and uncoupling the circular scissor device and the book cover machine, and that the circular scissor device Transport means for direct feeding of the cut flat blank to the feed station of the book cover machine has.

The circular shears device has attachment means for easy coupling to the device, which are adapted to the fastening means of the device accordingly.

The fastening means can be designed to be arbitrary. Advantageously, fastening means which contain bolts, conical pins or stops for reproducible positioning. Advantageously, they also contain a clamping device.

A circular scissors device for easy coupling and uncoupling to a device for obtaining a flat blank with a reference has the advantage that the device is very flexible. The Umrüstaufwand such a device in a format change is significantly reduced. If the circular shear is not needed, it can easily be decoupled and removed from the book cover machine, providing more direct access and improved accessibility when operating without a circular shear device.

If the device is to be converted from operation without a circular scissor device back to the operation with circular scissor device, a simple coupling of the circular scissor device is possible. If at the same time a format changeover of the device is necessary in this conversion, the dockable circular scissors device offers the advantage that the circular scissors device can be set in still decoupled state already on the new format while the book cover machine is still producing. The production downtime during the format changeover of the book cover machine is thereby reduced to the set-up time, which is necessary for the conversion of the work stations in the book cover machine. Since the set-up time, which is necessary to set up the circular shears device, has a high proportion of the set-up time, which is required for the rest of the machine, the production downtime of the book cover machine is considerably reduced.

It is essential that the engageable circular scissor device has transport means which allow a direct feeding of the cut blank to the device. The term "direct feeding" is intended to mean that the cut cut in the circular shears device blank is cyclically transferred in time to the book cover machine and preferably without significant change in direction to the book cover machine. In addition, "direct feeding" means that the blanks are transferred one-by-one to the device in succession, and then further processed individually by the blanks. The blank is always guided during the transfer by means of transport and there is no intermediate storage of the cut blanks in the form of a stack. By the means of transport, which allow a direct feeding of the cut blank to the device, it is ensured even in fast-running devices with a short cycle rate, that even cut into narrow strips blanks can be processed trouble-free.

In addition to the circular scissors permanently integrated in the machine, retrofittable circular scissor devices for book cover machines are also known in the state of the art, since they do not have exactly this feature of "direct feeding of the cut blank". In these known retrofitable circular scissor devices, the supply takes place "indirectly", namely the cut blanks are placed from above on the existing at the entrance of the book cover machine stack of blanks. With this storage of the blanks on the stack a strong change of direction of the blank is required. Also, the leadership of the blanks when depositing can not be constantly ensured. Especially when cut into narrow strips Cutting, as required, for example, for a narrow spine, it often happens that the narrow strip tilts when depositing on the stack about its longitudinal axis and is not properly stacked. In such a case, the device must be stopped and the fault eliminated manually.

It is advantageous if the device has a control, with which the couplable circular scissors device can be connected. The circular scissor device advantageously contains its own drive, which can be connected to the control of the device when coupling, preferably via a plug connection. The control of the device registers whether a circular scissors device is coupled and thereby enables the operation of the device with or without circular shear device.

In an advantageous embodiment of the invention it is provided that the circular scissor device has at least two wheels on which it is movable on the floor when connecting and disconnecting. The circular scissor device can be very easy to move when connecting and disconnecting without special aids.

In summary, a device for obtaining a flat lying, preferably made of cardboard blank with a reference is described, as it can be used in particular when producing a book cover. The device has attachment means for easy coupling of a circular scissor device. The coupled circular scissor device contains transport means for directly feeding the cut blank to the device.

Further advantages and features of the invention will become apparent from the claims and the following description of an embodiment.

• Figur 1 eine sehr schematisch und nicht maßstäblich dargestellte Seitenansicht einer erfindungsgemäßen Buchdeckenmaschine ohne Kreisschereneinrichtung,
• Figur 2 eine Seitenansicht einer schematisch dargestellten Kreisschereneinrichtung, die an die Buchdeckenmaschine gemäß Figur 1 ankoppelbar ist,
• Figur 3 eine schematische Draufsicht in Richtung des Pfeiles III auf die Kreisschereneinrichtung nach Figur 2.

Show it:

• FIG. 1 a very schematic and not to scale shown side view of a book cover machine according to the invention without circular shears device,
• FIG. 2 a side view of a schematically illustrated circular scissor device, the according to the book cover machine FIG. 1 can be coupled
• FIG. 3 a schematic plan view in the direction of arrow III on the circular scissor device according to FIG. 2 ,

In FIG. 1 a device 1 for obtaining a flat blank 2 with a reference 3 is shown. The device 1 in the form of a book cover machine is used to produce book covers, folders, ring binders and game plans. The blank 2 is usually made of cardboard and can be formed one or more parts.

The device 1 contains a plurality of processing stations 4 to 7 through which the blank 2 is cyclically transported in the transport direction A. Depending on the requirement, the number of processing stations can be quite different. The work steps to be performed are known per se and will therefore be described only briefly below.

In the feeding station 4, a stack of blanks 2 is inserted. The blanks 2 are separated by means of transport 8 and fed to a Zusammenführstation 5. In this case, the transport means 8 contains a plurality of slides 9 and guide rails 10. When moving the slider 9 in the transport direction A, the blank 2 of the blank stack lying at the bottom is taken along in the transport direction A. The overlying blanks 2 are retained by a stop bar 11. In the Zusammenführstation 5 a dashed line 3 is removed from a stack, provided with glue and merged with the blank 2. The blank 2 provided with the cover 3 is further transported in a subsequent working cycle into a wrapping station 6 in which the protruding edges 12 of the cover 3 are wrapped, ie wrapped around the edge of the blank 2. For the turning of the edges 12, alternatively, several processing stations can be used. In the last processing station 7, the turned-in edges 13 of the cover 3 can be pressed once again by a pressing roller pair, not shown. The transport of the provided with the reference 3 blank 2 of the Zusammenführstation 5 through the processing stations 6 and 7 is carried out by means not shown, which may include attached to a belt gripper, for example.

The processing stations 4 to 7 of the device 1 are arranged in a machine frame 14, which is placed on the floor 15. In the machine frame 14 of the drive 16 is housed for the device 1, which contains at least one electric motor for generating the necessary movements of the working means in the processing stations 4 to 7 and the means of transport. The drive 16 is controlled by a controller 17.

The device 1 is prepared so that it can optionally also be operated with a circular shears device 18. The circular shears device 18 will be explained in more detail below. For coupling the circular shears device 18 fastening means 19 are provided on the device 1. The fastening means 19 are in FIG. 1 indicated in the region of the feed station 4 on the machine frame 14. The fastening means 19 are easily detachable and allow a reproducible positioning of the circular shears device 18 during coupling. For this purpose, the fastening means 19 preferably contain at least one bolt or conical pin and a clamping device. A plug connection 20 is provided on the controller 17 of the device, by means of which the circular shears device 18 can be connected to the controller 17 during coupling to the device 1.

In the FIGS. 2 and 3 the circular shear device 18 is shown schematically. The circular shears device 18 essentially consists of a magazine 21, a circular knife station 22, transport means 23 and a frame 24. The circular shears device 18 can be moved on the floor 15 via four wheels 25 attached to the frame 24. The circular shears device 18 is pushed over the wheels 25 to the device 1 and coupled in the region of the feed station 4. On the frame 24 of the circular scissor device 18 for this purpose fastening means 26 are attached, which are adapted to the fastening means 19 of the device. For example, the fastening means 19 and 26 may include holes 27, so that the frame 24 can be connected to the machine frame 14 via bolts, not shown, which are inserted into the holes 27.

The circular shears device 18 preferably contains its own drive 28, which is connected to the controller 17 of the device 1 when coupling the circular shears device 18. On the drive 28, a plug 29 is mounted for this purpose, in the connector 20 to the controller 17th is inserted. The circular scissors device 18 coupled to the device 1 is then controlled by the controller 17 of the device 1, so that the drive 28 performs the movements of the circular scissor device 18 isochronously with respect to the device 1. The circular shears device 18 therefore does not need to have its own control.

The circular scissors device 18, which is coupled to the device 1, serves to cut a one-piece blank 2 into a plurality, preferably two or three, parts. Alternatively, a two-piece blank 2 can be cut into four parts in a manner not shown. The circular shears device 18 is presented in the magazine 21, a stack of one-piece blanks 2. The lowermost blank 2 in the magazine 21 is isolated as in the feeder station 4 described above and pushed by a slider 30 in the circular knife station 22. In the circular knife station 22, two circular blades 31 are arranged, which cut the blank 2 into three parts 32, 33 and 34. The part 32 of the blank 2 forms later, for example, the front of a book, the part 33 the Buckrücken and the part 34, the back. After the circular knife station 22, the cut blanks are taken over by means of transport 23 and fed directly to the device 1. The transport means 23 include slides 35 and guide rails 36 which pass the cut blank 2 in the working cycle of the device 1 and without change of direction to the feed station 4. The position occupied by the feeding station 4 of the device 1 with respect to the coupled circular shears device 18 is in FIG FIG. 2 indicated by dash-dotted lines. When coupled circular scissors device 18 so no stack of blanks 2 is present in the feed station 4 of the device 1. Instead, a blank 2 is transported into the feed station 4 by the transport means 23 from the circular shears device 18 in a work cycle, which is transported further by the transport means 8 from the feed station 4 into the merging station 5 in the subsequent work cycle. The feed station 4 is preferably configured such that no conversion measures are required on it when connecting or disconnecting the circular shears device 18.

The parts 32, 33 and 34 are transferred without intermediate storage directly and directly in a straight line from the circular knife station 22 to the feed station 4. The parts 32, 33, 34 of the blank 2 are constantly guided by the transport means 23. The guide rails 36 extend at least as far as the guide rails 10 or even overlap them, so that the blank 2 at the transfer at any time unguided. It can also be processed cut blanks with, for example, very narrow spine 33 safely and with high clock rate.

In order that the parts 32, 33 and 34 of the cut blank 2 in the feed station 4 have the required distance from one another, guide rails 37 can be arranged in the area between the circular knife station 22 and feed station 4, which run wedge-shaped at their front edge and the parts 32, 33 and 34 of the blank 2 slide apart transversely to the transport direction A.

In a non-illustrated embodiment can also be provided that a one-piece blank 2 is cut only once in the circular knife station 22. A two-part blank 2 from the parts 32 and 34, for example, later form a game plan. Alternatively, it can also be provided that, instead of the part 33 for the spine, a flexible skein is fed from a roll in the feed station 4. In this case, the two parts 32 and 34 for the front and back of the book after cutting in the circular knife station 22 must be moved apart by a much larger amount transversely to the transport direction A, so that there is enough space between the two for the flexible Schrenz , The guide rails 37 can be modified accordingly.

The circular scissor device 18 according to the invention achieves a very high degree of flexibility of the device 1 while at the same time retaining the advantages of a book cover machine with permanently installed circular scissors. By the transport means 23 for directly feeding the cut blank 2 to the device 1, the known very high reliability in the processing of difficult blanks 2 can be maintained. The fastening means 19 and 26, which allow the simple coupling and uncoupling of the circular shears device 18, cause a substantial reduction of set-up time when converting the machine to another format of the blank 2. If, for example, for obtaining a one-piece blank 2, the circular shears device 18 is not needed , the circular shears device 18 can be decoupled from the device 1 and pushed away with a few simple steps. It must then be adapted to the new format only the transport and working means in the processing stations 4, 5, 6 and 7 of the device 1. An additional adjustment of the circular blade 31 and the transport means 23, which would still be required in the previously known cover machine with fixed circular shears, is eliminated.

Even if the device 1 is subsequently to again process a multi-part blank 2, in which the circular shears device 18 is required again, a substantial part of the machine downtime during the conversion can be saved. The setting of the circular shears device 18, in particular the circular blade 31 and the transport means 23 with the sliders 35 and the guide rails 36, can already be carried out when the circular shears device 18 is not yet coupled to the device 1, and the device 1 still with the production of one-piece blanks is busy. The downtime of the device 1 is then reduced again during conversion only to the time necessary to set the processing stations 4 to 7. The circular shears device 18 is already preset and only needs to be connected.

Claims (6)

1. Arrangement having a rotary cutting device (18) for cutting of a flat-lying blank (2) and having a book covering machine (1) arranged in the transport direction of the blank (2) downstream of the rotary cutting device (18) for covering said flat-lying blank (2), where the book covering machine (1) has a feed station (4) and a combining station (5) and where said feed station (4) is designed for feeding a cut and flat-lying blank (2) to the downstream combining station (5) and said combining station (5) is designed for combining the flat-lying blank (2) with a cover (3), characterized in that the rotary cutting device (18) and the book covering machine (1) have fastening elements (19, 26) adapted to one another for coupling and uncoupling the rotary cutting device (18) and the book covering machine (1) and in that the rotary cutting device (18) has transport means (23) for direct feeding of the cut and flat-lying blank (2) to the feed station (4) of the book covering machine (1).
2. Arrangement according to Claim 1, characterized in that the book covering machine (1) has a control unit (17) to which the couplable rotary cutting device (18) can be connected.
3. Arrangement according to Claim 1 or 2, characterized in that the book covering machine (1) can be operated optionally with or without the rotary cutting device (18).
4. Arrangement according to one of the preceding claims, characterized in that the transport means (23) of the rotary cutting device (18) contain at least one guide rail (36).
5. Arrangement according to Claim 4, characterized in that the rotary cutting device (18) contains its own drive unit (28) connectable to a control unit (17) of the book covering machine (1) during coupling.
6. Arrangement according to one of the preceding claims, characterized in that the rotary cutting device (18) has at least two wheels (25) for movement during coupling and uncoupling.

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