EP2103398B1 - Method and device for cutting folded printed products - Google Patents

Abstract

The device has a controllable clamping and moving arrangement (20) associated with receiving compartments (10) for clamping printed products (100) and for moving the products along a supporting area (14). The support (50) is designed such that a front edge (104) of the products opposite to a folded edge (102) is in direct vicinity at side of the compartment. The arrangement is designed and controllable such that the products are fixed in the region of the lateral edges running perpendicularly to the folded edge before carrying out the trimming and released for transfer of the products. An independent claim is also included for a method for trimming folded printed products on an edge.

Description

The invention is in the field of processing of printed products and relates to an apparatus and a method for pruning in particular multi-leaved folded printed products, such as e.g. Newspapers, magazines and brochures, according to the preambles of claims 1 and 8.

Folded printed products are usually trimmed at the edge opposite the folded edge, as well as at the two edges extending at right angles thereto. This is called a frontal cut or a head / foot cut.

An apparatus and a method according to the preambles of claims 1 and 9 are known from EP-A 0 753 386 known. The device described therein has a plurality of pocket-shaped receiving compartments, which rotate about a common axis of rotation and thereby conveyed along a circular orbit. The receiving compartments are each formed by two adjacent, radially oriented support surfaces. The products are introduced with the folded edge first in the receiving compartments and come to a support, which is located in the area of the compartment floor, to the plant. The support is shaped and positioned to position the products completely and deeply in the compartment, ie, the edge opposite the fold edge is fully contained in the compartment and is significantly spaced from the radially outward open side of the compartment. In this position, the products are laterally aligned, ie in the direction of the axis of rotation or parallel to the compartment floor, and then clamped with a clamping arrangement directly or indirectly against the support surface.

Subsequently, the head / foot cut, then the front cut. For the respective cuts, a cutting arrangement is provided, which comprises at least one stationary counter knife as well as moving knives arranged in the compartments. The counter knife for the head-foot cut is arranged in the direction of movement of the compartments in front of the counter knife for the front section.

The mitbewegten knives for the head-foot-section are arranged on axially open sides of the receiving compartments, the mitbewegte knife for the front section is arranged on the parallel to the compartment floor open side of the compartments. The stationary counter-blades are located at suitable positions where they can interact with the moving knives scissor-like. Since the components supporting or cutting the front edge must pass the counter-knife for the head-foot cut, the product for the front cut and the head-foot cut must be located at different depths in the compartment. In the known device, therefore, the product must be introduced deep into the bag already during the takeover in order to perform the head foot-cut can.

Before the head-foot cut, the products are fixed in the compartment by the clamping arrangement. After the head foot cut the Klenunanordnung is released and the product laterally grabbed by a sliding arrangement. The slide assembly pushes the product along the support surface out of the compartment to the position for the frontal cut. The clamp assembly is then reactivated and the product re-clamped in the shifted position. To the front section, the clamping arrangement is released again and pushed the product through the displacement arrangement so far out of the compartment that it can be taken over by a removal conveyor.

In the known device, the products are conveyed by a gripper conveyor and dropped into the compartments or deeply inserted therein. They slide freely along the support surface until their folded edge is stopped at the support. In this process, it may happen that move the product in the compartment and / or product components against each other. For the lateral (axial) alignment of the products before clamping, therefore, a relatively large distance or time is provided, which corresponds to a movement of the compartments along the circular path over an angular range of for example about 60 °. Nevertheless, it may happen that the products are not completely aligned during the subsequent clamping by the clamping device, which can lead to unclean cutting edges in the trimmed product.

In addition, the product is brought into the position for the front section only after the head-foot cut and clamped in this position by the clamping arrangement on the front edge. In particular, by the change between the clamping by the clamping arrangement and by the displacement device may have previously come to shifts or bulging of the not held by the displacement middle product range, so that the front edge is not smooth, but fixed with folds or displacements. This can also lead to unclean cut edges.

The EP 0 367 715 describes a method and an apparatus for trimming continuously conveyed printed products with a plurality of transport units circulating on a closed path for receiving the printed products. The printed products are clamped for a first and second cut for trimming a first and second side edge in the transport units. According to the EP 0 367 715 the clamping is released after the trimming of the first side edge, so that an alignment of the printed products can take place before the second cut. After alignment, the clamp for the trimming of the second side edge is reactivated.

The invention has for its object to avoid the disadvantages of the prior art and to provide a device for trimming folded printed products and a corresponding method in which the position of the products to achieve optimum cut quality is well controlled.

The object is achieved by a device having the features of claim 1 and a method having the features of claim 98. Advantageous developments of the invention will become apparent from the dependent claims, the description and the drawings.

Like the device described above, the device according to the invention likewise comprises receiving compartments which are formed by a support surface and are peripherally open on the support surface on one, preferably three sides, so that the moving knives can be arranged here and interact with stationary counter knives. The device also includes a support which serves as a contact or stop for the folded edge of the products during or after insertion into the compartments. Likewise, the device comprises a Cutting arrangement for the front section and / or a cutting arrangement for the head-foot-cut, each with the compartments moving along, arranged on the respective open sides of the knife and at least one stationary counter knife. As in the prior art, there is a clamping and displacement arrangement for clamping the printed products and for translating along the support surface. The clamping and displacement arrangement preferably acts at least on the side edges of the product.

According to the invention, the support is adjusted so that the products are introduced into the compartments during the transfer, that the edge of the folded edge opposite the printed products after insertion into the compartments is in the immediate vicinity of the open side of the compartments. In particular, the product is not introduced deep into the compartment as in the prior art, but the front edge is located at a small distance from the moving knife for the front section. Preferably, the front edge is beyond these mitbewegten knives or is gently pushed by sliding along the support in this position. In this position, the product, preferably after alignment in lateral (ie parallel to the compartment floor extending) direction, fixed by the clamping and displacement arrangement at the perpendicular to the fold edge extending side edges. This is done before making the first cut. The lateral fixation is only released again when the printed product is dispensed, with the product being brought, if necessary, with the clamping and displacing arrangement into the operative positions provided for cutting and for dispensing the product.

These measures have the following effect in combination: the product is introduced into the compartments at a lower depth than in the prior art. As a result, on the one hand the distance over which the products fall freely, compared to the prior art significantly shortened. Uncontrolled movements are thus avoided. Within the time available, therefore, the products can be aligned with greater precision because of the need for rough alignment. Alternatively, the length of the portion of the trajectory in which the alignment takes place can be shortened. By the side clamping takes place immediately after the alignment and is not released until delivery, wrinkling or shifting of the product parts by gripping and loosening is avoided. On the other hand, the front section can be made immediately after alignment, without the product must be moved again within the compartment. Overall, this results in a better quality of the cutting edge. Although the product usually has to be drawn into the compartment for the head foot cut, this is done very controlled due to the preferably not released clamping on the side edges. For this reason, it also has no effect on the quality of the cut edges when a possibly existing to fix the front edge existing clamping member after the front section is released.

Preferably, cutting arrangements for the front section and the head-foot section are present, the stationary counter-blade can optionally be switched off, if the corresponding section is not to be executed. The stationary counter knives are preferably arranged so that first the front cut and then the head-foot cut is made.

In order to adapt to different product formats, the support is preferably displaceable in such a way that the product projection via the front-cut knife or the corresponding open side of the compartment always has essentially the same width. The support is preferably formed by one or more stationary elements which are located in the region of the device in which the products are introduced into the compartments and subsequently aligned. Alternatively, the support can also be realized by a mitbewegten and preferably movable compartment floor.

The control arrangement for controlling the clamping and displacement arrangement may be in the form of a stationary control link and cooperating controls.

The clamping and displacement arrangement preferably comprises at least one clamping member with at least two clamping elements, which are able to receive a printed product between them and with a control arrangement, for example in the form of a stationary control link and cooperating controls, between an open position and a clamping position relative to each other movable are. In the simplest case, one of the clamping elements may be formed by the support surface of the compartment and the other by a lever pivotable relative thereto. However, it is preferred that the mutually cooperating clamping elements are independent of the support surface and, as a displacement device can be moved relative to the compartment floor or away from it to bring the product from the position for the front section in the position for the head-foot-cut. The support surface can serve as a guide for the corresponding clamping member.

Preferably, a first clamping member for clamping the front edge and at least two further clamping members for clamping the perpendicular thereto extending side edges are present. For example, the first clamping member cooperates with the support surface, e.g. with a transom integrated or attached thereto. It may, but does not have to be postponed. The further clamping elements preferably cooperate with counter elements which are movable relative to the support surface. The clamping members for the front and side fixation are preferably independently controllable, so that the front clamp can be solved after performing the frontal cut and the product can be brought into the position for the head-foot cut, without the side clamp must be solved.

The receiving compartments are preferably driven in rotation about a common, preferably horizontal axis of rotation, extend in the radial direction away from the axis of rotation and are open on the radially outer side and on both sides extending perpendicular thereto.

• Fig. 1 eine Übersichtsdarstellung der erfindungsgemässen Vorrichtung;
• Fig. 2 eine Klemm- und Verschiebeanordnung;
• Fig. 3a+b eine Klemm- und Verschiebeanordnung in Seitenansicht im geschlossenen bzw. offenen Zustand;
• Fig. 4 eine Detailansicht des Übernahmebereichs der Vorrichtung aus Fig. 1;
• Fig. 5 eine Detailansicht des Bereichs, in dem der Frontschnitt ausgeführt wird, der Vorrichtung aus Fig. 1;
• Fig. 6 eine Detailansicht des Bereichs, in dem der Kopf-Fuss-Schnitt ausgeführt wird, der Vorrichtung aus Fig. 1;
• Fig. 7 eine Detailansicht des Übergabebereichs der Vorrichtung aus Fig. 1.

Examples of the invention are shown in the drawings. It shows purely schematically:

• Fig. 1 an overview of the inventive device;
• Fig. 2 a clamping and displacement arrangement;
• Fig. 3a + b a clamping and displacement arrangement in side view in the closed or open state;
• Fig. 4 a detailed view of the transfer area of the device Fig. 1 ;
• Fig. 5 a detailed view of the area in which the front section is executed, the device from Fig. 1 ;
• Fig. 6 a detailed view of the area in which the head-foot-cut is performed, the device from Fig. 1 ;
• Fig. 7 a detailed view of the transfer area of the device Fig. 1 ,

Fig. 1 shows the inventive device 1 in a view from the side. The structure and operation correspond in principle to the device of the EP-A 0 753 386 , Differences exist mainly in the order of the cuts and in the construction of the clamping and displacement assembly 20, which in the Fig. 2 . 3a + b is explained in more detail. These differences will be discussed below EP-A 0 753 386 directed.

Fig. 4-7 show excerpts from the overview and illustrate the individual process steps.

The device 1 has a processing drum 2 mounted in a frame, not shown here, which is rotatable about its longitudinal axis 16. The processing drum 2 has a plurality of receiving compartments 10, which are radially oriented and are open in the radial direction and on the two end faces of the processing drum 2. The compartments 10 are bounded by supporting elements 12, 13 whose upper sides define a support surface 14 for the products 100. The compartments 10 are moved by rotation of the processing drum 2 along a closed, here circular orbit U.

A feed conveyor 70 arranged above the device 1 in the form of a gripper conveyor with a plurality of grippers 72 serves to introduce printed products 100 with their folded edge 102 ahead from above into the compartments 10. A in the lower area laterally adjacent to the device 1 arranged removal conveyor 80, also in the form of a gripper conveyor with a plurality of grippers 82, serves to take over the trimmed products 100 from the compartments 10 and their transport away.

The compartments 10 each contain a clamping and displacement arrangement 20 with which the products 100 can be fixed in the compartments 10 and displaced along the support surface 14 substantially perpendicular to the axis of rotation 16. The corresponding movements of the clamping and displacement arrangement 20 are controlled by a control arrangement 60. The clamp and slide assembly 20 will be described with reference to FIG Fig. 2 . 3a + b described; the here stationary Steuerkulissen 62, 64, 66 of the control arrangement 60 are in the Fig. 4-7 good to see.

A first cutting arrangement 30 serves to produce the front section, ie to trim that edge 104 of the product 100 which lies opposite the folded edge 102 (front edge). It includes arranged in the compartments 10, parallel to A second cutting assembly 40 is used to produce the head-foot-section, ie for trimming the perpendicular to the folded edge 102 extending side edges 106, 108. It comprises arranged in the compartments 10, perpendicular to Rotary axis 16 oriented mitbewegte knife elements 42 and a stationary knife assembly with two counter knives 44th

In the upper region of the processing drum 2 is a stationary support 50, which defines the compartment floor by its upper edge 52 and thus limits the insertion depth of the products 100 in the compartments 10. On this support 50 comes the folded edge 102 of the products 100 immediately after insertion to the plant.

Hereinafter, the clamping and shifting arrangement will be described with reference to FIG Fig. 2 . 3a + b described in detail.

The Aufinahmeabteile 10 are defined by a plurality of two wheels 18, radially aligned elongated support members 12, 13 defined. In each case, a first support element 12 and a second support element 13 define a radially oriented support surface 14 through their surfaces oriented toward the compartment 10. The support elements 12, 13 are fastened at their end facing the axis of rotation 16, for example in a spoke-like manner to a respective wheel 3, 4 (in FIG Fig. 3b indicated schematically). Like in the EP-A 0 753 386 is described, the distance d of the support members 12, 13 and the wheels 3, 4 can be adjusted in the direction of the longitudinal axis 16 for adaptation to different product formats. At the radially outer end of the support members 12, 13 and parallel to the longitudinal axis 16 is a crossbar 15. The crossbar 15 has pin-like projections 17, with he on a rotatable about the axis 16 wheel 18 (FIGS. Fig. 1 ) is attached. The Support elements 12, 13 can be moved in the direction of the crossbar 15 relative to this for the purpose of format adaptation.

On the crossbar 15, the mitbewegten knife elements 32 of the first knife assembly 30 are mounted; the blades point outward in the radial direction. The mitbewegten knife elements 42 of the second cutting assembly 40 are attached to the axially outer edges of the support members 12. Their blades point outward in the axial direction. In the plan view of the support surface 14, the blades of the knife elements 32, 42 with the respective edge of the support member 12 and the crossbar 15 are aligned or extend beyond this.

Each compartment 10 is associated with a clamping and displacement arrangement 20. This consists of two clamping members 22, 24 for the side clamping and a clamping member 26 for the front clamping. The clamping members 22, 24 for the side clamping are each designed the same; In the following, only one of the clamping members will be described:

The clamping device 22 for the side clamping each comprises a lever 202, with each of which a pressing plate 204, consisting of a flat support member 240 and a thin plate 242 made of spring steel, about an axis parallel to the axis of rotation 16 extending axis 206 is pivotally connected. A spring 214 pushes the carrier element 240 away from the lever 202 in its radially inner region 240 '. As a result, a pressing action is generated when closing the clamping member 22, which acts first on the near the compartment floor product areas, ie from the folded edge 102 toward the front edge 104, so that any air trapped in the product is struck. The pressing plate 204 has an outer edge 204a extending parallel to the side edge of the support surface 14 and widens in its radially outer end region 204b to the interior of the support surface 14 out. The clamping member 22 is operatively connected to a carriage 208 which is displaceable in a slot 19 of the support member 12 in the radial direction.

The carriage 208 has a control element 210 in the form of a control roller. This cooperates with the setting of the radial position with a first stationary control link 62, which is part of the control arrangement 60.

The lever 202 is movable relative to the support member 12 between an open position and a clamping position, in particular pivotable. For this purpose, it is pivotally mounted about an axis 216 on the carriage 208. He has at its radially inner end another control 212, also in the form of a tax role. This acts to adjust the pivoting position of the lever 202 with a second stationary control link 64 (FIG. Fig. 4 ) together.

The clamping device 26 for the front clamping comprises a further lever 218 which is pivotable about a further axis 220 and mounted on an intermediate between the two mentioned above, serving as a support for the supporting elements 12, 13 wheels 3, 4 middle wheel disc 5. The middle wheel disc 5 retains its central position during a format adaptation, ie axial change in distance of the outer wheels 3, 4, and is not adjusted. The clamping device 26 for the front clamping further comprises a T-shaped in the top pressure plate 228 which is pivotally connected via an elongated coupling piece 230 with the other lever 218. The radially outer edge 228a of the pressure plate 228 is parallel to the axis of rotation 16, the front cutting blade 32 and in the application to be trimmed front edge of the product. The width of the front-cut press plate corresponds at least to the maximum product width. So that the front-cutting press plate on the counter knife for the side cut passes In the case of use, the product must be withdrawn to the compartment floor.

The coupling piece 230 is on the one hand pivotally connected to the lever 218 and on the other hand connected at its radially outer end via a telescopic rod 226 with the support member 12, 13 of an adjacent compartment 10 ( Fig. 3a + B). Between the lever 218 and the adjacent compartment 10, a compression spring 232 is arranged, which presses the lever 218 to the support surface 14. The pivoting position of the further lever 218 can against the spring action with a third control link 66 (FIG. Fig. 4 ) are set, which cooperates with a radially inner end of the further lever 218 arranged control (control roller). When the lever 218 is closed, the front-cutting press plate 228 pushes the side-cut press plates 204 against the support members 12, 13 and the crossbar 15, respectively.

In the region of the side edges of the support elements 12 is preferably a counter-clamping element 224, which cooperates for the purpose of lateral clamping with the pressure plate 204, is coupled to the carriage 208 and is displaced in the radial direction during movement of the carriage 208. Its top serves as part of the support surface 14.

The support 50 consists of one or more planar, preferably circular segment-like, stationary elements which extend in a plane perpendicular to the axis of rotation 16 and engage between the support elements 12, 13. They are preferably displaceable for format adaptation in this plane. Its upper edge 52 has a constant or along the trajectory decreasing distance from the blades 32. In the latter case, the product is only fully disposed in the compartment and is supported by the support 50 during the alignment back in a position in which the front edge of the knife 32 surmounted raised. These are movements that are preferably small compared to the displacement required for the sidecut.

The following describes the function of the clamp and slide assembly 20:

In open condition ( Fig. 3b ) are both the lever 202 of the side clamping members 22, 24 and the lever 218 of the front clamping member 26 in a pivoted away from the support member 12, 13 position. In Fig. 3b the pressing plates 204, 228 are aligned with one another in the view on the axis of rotation 16. A printed product 100 can thus be inserted between the press plate 204 and the support surface 14. By moving the lever 218 of the front clamping member 26 in the closed position (clamping position) and the lever 202 of the side clamping member 22, 24 is brought into the clamping position. The product is pressed against the support surface 14 by the pressure plates 204, 228 at its side edges and at the front, in particular against the counter-clamping elements 224 (side edges) and the transverse bar 15 (front edge). The outer edges of the press plates 204, 228 are parallel to and preferably as close as possible to the product edges to be cut. Due to the pivotability of the pressure plate 204 relative to the lever 202 and the first spring 214, which presses the pressure plate 204 away from the lever 202, a good, over a large area uniformly acting clamping is made regardless of the product thickness and air to the front edge 104 out struck. Likewise, a good surface clamping effect is achieved by the pivotability of the front pressing plate 228 relative to the lever 218. A local shifting of product parts and thus the formation of wrinkles or bulges of the clamped product is prevented.

Although the front clamp member 26 carries the side clamps 22, 24 from the open position to the closed position, the front clamp can be opened independently of the side clamp to place the products 100 in the side cut position after the front cut, i. to move to the axis of rotation 16 out. By the spring 232 between the front clamping lever 218 and the adjacent support member 12, 13 different product thicknesses can be compensated. In particular, prevents excessive forces acting on the mechanical control blocks and the lever and jam these components. The levers serve as drag levers. The control scenes must apply only the counterforce necessary for closing or opening. The side clamping members 22, 24 are, as mentioned above, mounted on separate wheel discs and controllable independently of each other, but are moved in synchronism with each other parallel to the support surface 14 during operation. The front clamping member 26 is independently mounted on the central wheel disc and is moved neither in the radial direction nor for format adaptation.

The function of the entire apparatus 1 will be described below with reference to FIG Fig. 1 and in addition Fig. 4-7 described:

As in Fig. 1 and Fig. 4 5, the products 100 are introduced in a transfer region with their folded edge 102 ahead of the grippers 72 of the feed conveyor 70 into the compartments 10 and between the support surface 14 and the open clamping elements 22, 24, 26. In order to achieve the largest possible opening, the press plates 204, 218 are initially in a mutually aligned position (middle still held by the gripper 72 product 100 in Fig. 4 ). Subsequently, first the side clamping member 22, 24 and then the front clamping member 26 is approximated to the support surface 14. At the same time, the gripper 72 is opened and the product 100 is released.

In the transfer area is the stationary support 50, at the top 52, the folded edge 102 comes to rest. The support 50 is shaped and positioned so that its upper edge 52 has a predetermined distance D from the blades of the radially outwardly facing front cutting blade elements 32. This distance is set so that it is smaller than the product length in the insertion direction (radial direction). Thus, the inserted and released by the gripper product 100 is in the radial direction by a predetermined amount D 'on the blade of the blade 32 via. It is thus already in the position in which the front section can be performed.

After insertion, the clamping members 22, 24, 26 so far approximated by appropriate shaping of the responsible for the opening / closing Steuerkulissen 64, 66, that the product seen in the circumferential direction is positioned substantially parallel to the support surface 14, but moved parallel to it can be. In the area A of the orbit, which extends over an angular range of approximately 60 °, the product 100 is aligned by alignment elements, not shown here, for example laterally arranged alignment bands, in the direction of the axis of rotation 16. At the end of the region A, it is clamped against the support surface 14 or in the lateral region against the displaceable counter-clamping element 224 by completely closing the clamping members 22, 24, 26. Fig. 5 top and second highest compartment 10).

This is followed by the region B, in which the stationary counter knife 34 is positioned and in which the front section is performed. This region B extends over an angular range of approximately 30 ° ( Fig. 5 ).

In the now following area C, the front clamping member 26 is released and the product 100 released at the front edge 104 again (lower compartment in Fig. 5 ). Of the Carriage 208 is now in the closed state of the clamping members 22, 24 by a predetermined amount (stroke) b, which is product-independent, moved inside. The displacement mechanism is always configured the same regardless of the product format and executes the same stroke b. The lever 202 and the pressing plate 204 and the counter-clamping element 224 are moved inwardly by the carriage 208. The Seitenklemmung is not solved. The product 100 therefore remains well positioned over its entire area. The region C extends over an angular range of approximately 50 °.

In the following area D (approximately 20 °), the stationary counter-blades 44 for the head-foot cut are arranged so that the two side edges are trimmed simultaneously and with the same cutting direction ( Fig. 6 ). For spatial reasons, the radially outer end of the counter knife 44 is within the path of the moving blades 32 for the front section. Therefore, it is necessary to move the products 100 inward before the head-foot cut (area C).

Subsequent to the head-foot cut the product with the clamping and displacement assembly 20 by moving the carriage 208 is again moved outwardly to a position in which the front edge 104 protrudes beyond the front cutting blade 32, for example 30 mm, and can be taken by the grippers 82. ( Fig. 7 ). The corresponding region E extends over an angular range of approximately 40 °. At the end of the region E, the clamping members 22, 24 are opened for the side clamping when the products 100 have already been gripped by the gripper 82. The transfer is therefore very controlled.

In the area F between path and train promotion of the carriage 208 of the clamping and displacement assembly 20 is again slightly moved inwards so that they can assume their starting position in the area A.

The invention has the advantage that the product 100 does not have to be completely introduced into the compartments during the transfer by the feed conveyor 70. Thus, immediately after transfer, the product 100 is in the correct radial position for the frontal cut, which is performed immediately following the registration process. There is therefore more time to align in area A so that it can be more precise. Furthermore, the product 100 is securely fixed after alignment until transfer to the removal conveyor 80 by the lateral clamping elements 22, 26, which are also displaceable in the radial direction. The front edge 104 of the product 100 is preferably initially pressed against the support member 12 by the front presser plate 228 and released after the frontal cut is made to allow the product to be displaced inwardly. It does not have to be re-clamped again.

The device 1 shown in the figures represents only a preferred implementation of the invention. Within the scope of the inventive concept, further variants are possible: For example, the product can be introduced into the compartments 10 in another way instead of the folded edge 102 ahead. In this case, the three edges of the product are trimmed, which are not the leading edge during insertion. If only a front or head foot cut is desired, the stationary knives 44 for the head foot cut or the front cut can also be brought into an inactive position. Moreover, it is not mandatory to realize the compartments by a processing drum; they may also be formed by pockets which are moved one behind the other along a closed or fixed distance closed orbit. Instead of a stationary one Support can also be a mitbewegte support available, for example, an adjustable compartment floor.

The front clamping by the front clamping member 26 is basically not mandatory, but leads to an improved cut edge quality. In front and side clamping, the front clamp press plate 228 need not necessarily overlap the side clamp press plates 204; the press plates can also be arranged side by side. However, an overlap has advantages in the realization of a pressing surface lying in a common plane. It is also possible that the front clamping member 26 with the side clamping members 22, 24 is displaceable.

Claims (14)

1. Installation (1) for trimming at least one edge of folded printed products (100), with receiving compartments (10) for the printed products (100) to be trimmed, which are drivable to circulate along a circuit (U), comprise at least one supporting surface (14) and are open on at least one side, with a support (50) on which the printed product (100) inserted into the receiving compartment (10) comes to lie with its folded edge (102) in the region of the compartment base, and with at least one trimming arrangement (30, 40) which comprises a plurality of blades (32, 42) moved along with the receiving compartments (10) as well as at least one stationary counter blade (34, 44), wherein the receiving compartments (10) comprise a controllable clamping and moving arrangement (20) for the clamping and moving of the printed products (100) along the supporting surface (14), and the clamping and moving arrangement (20) comprises at least one clamping device (22, 24) with at least two clamping elements (224, 228) for clamping an lateral edge of the printed product (100), and the at least two clamping devices interact in such a manner that, between them, they are able to pick up a printed product, and the at least two clamping devices can be moved in relation to each other, between a release position and a clamping position, with a control arrangement, characterized in that the support (50) is designed such that, after insertion into the compartments (10), the edge (104) of the printed product (100) opposite the folded edge (102) is situated in the direct vicinity of the open side of the compartment (10) and that the interacting clamping elements of the clamping and moving arrangement (20) can be moved toward or away from the compartment base independent of the supporting surface, so that the printed products (100) can be fixed, prior to a first trim, at least in the region of the lateral edges (106, 108) running perpendicularly to the folded edge (102) and need not be released again until yielding the printed product (100).
2. Installation according to claim 1, characterized in that the at least one trimming arrangement is for creating frontal trimmings, wherein its moved along blades (32) are arranged on the open side of the compartments (10) opposite to the compartment base and that the support is designed such and the clamping and moving arrangement (20) is designed and controlled such that the printed products (100), before being clamped by the clamping and moving arrangement (20), protrude over the moved along blades (32) of the first trimming arrangement (30).
3. Installation according to claim 2, characterized in that the support (50) is adjustable such that the distance (D) between the support and the moved along blades (32) of the first trimming arrangement (30) is adaptable to the format of the printed products (100) to be trimmed.
4. Installation according to one of the preceding claims, characterized in that the compartments (10) are open on three sides and that at least one first trimming arrangement (30) for creating frontal trimmings and a second trimming arrangement (40) for creating of head-foot-trimmings is provided, wherein these in each case comprise, on the open sides of the compartments, moved along blades (32, 42) and stationary counter blades (34, 44) and whereby the stationary counter blade of the first trimming arrangement (30) is arranged in circulation direction ahead of the counter blade of the second trimming arrangement (40), such that the frontal trimming is carried out before the head-foot-trimming.
5. Installation according to claim 4, characterized in that the clamping and moving arrangement (20) is designed such that the printed products (100) are moved towards the compartment base in between the frontal trimming and the head-foot-trimming.
6. Installation according to claim 5, characterized in that the clamping and moving arrangement (20) comprises at least three clamping devices (22, 24, 26) for clamping the frontal edge (104) opposite the folded edge (102), as well as of the lateral edges (106, 108), which run perpendicularly to the frontal edge, wherein the clamping device (26) for the frontal edge (104) is advantageously controllable and movable independently of the clamping devices (22, 24) for the lateral edges (106, 108).
7. Installation according to claim 6, characterized in that the axial distance of the clamping devices (22, 24) for clamping the lateral edges (106, 108) is adjustable for adaptation to different formats independently of the position of the clamping device (26) for the front edge (104).
8. Method for the trimming of folded printed products (100) on at least one edge by means of an installation according to one of the claims 1 to 7, wherein the printed products (100) are introduced into receiving compartments (10), that are driven to circulate along a circuit (U), are open on at least one side and comprise a supporting surface (14), the printed products (100) come to lie with their folded edge (102) on a support (50) in the region of the compartment base, are clamped in the receiving compartment (10), are moved along the supporting surface (14) and are trimmed with a trimming arrangement (30, 40) comprising a plurality of blades (32, 42) moved along with the trimming arrangement (30, 40) as well as one respective stationary counter blade (34, 44), characterized in that the printed products (100) are inserted into the receiving compartments (10) and supported by the support (50) in such a way, that the edge (104) of the printed products opposite the folded edge (102) is in direct vicinity of the open side after insertion into the compartments (10) and that the printed products (100) are fixed in the region of the side edges (106, 108) extending in perpendicular to the folded edges (102) before a first trimming is carried out and are only released when the printed product is passed on.
9. Method according to claim 8, characterized in that the printed products (100) are trimmed at least on their frontal edge (104) opposite the folded edge (102) and that they are supported by the support in such a manner that, before being clamped by the clamping and moving arrangement (20), they protrude over the moved along blades (32) of a trimming arrangement (30) for the frontal trimming.
10. Method according to claim 8 or 9, characterized in that the printed products are trimmed on their front edge (104) opposite the folded edge (102) and then trimmed on the lateral edges (106, 108) extending perpendicularly to these.
11. Method according to claim 10, characterized in that the printed products (100) are clamped after insertion into the receiving compartments (10) in the region of the frontal edges (104) and on the lateral edges (106, 108).
12. Method according to claim 11, characterized in that the front edge (104) is released after the frontal trimming has been executed and the lateral edges (106, 108) are held in a clamped condition.
13. Method according to claim 12, characterized in that the printed product (100) is moved towards the compartment base after release of the front edge (104) without the two lateral edges (106, 108) being released and that the head-foot-trimming is carried out subsequently.
14. Method according to one of claims 8 to 13, characterized in that the printed product (100), after execution of the head-foot-trimming is moved away from the compartment base, such that it may be taken over by an onward conveying device (80).

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