EP0522319B1 - Verfahren und Vorrichtung zum Oeffnen von flexiblen, aussermittig gefalteten Erzeugnissen - Google Patents

Verfahren und Vorrichtung zum Oeffnen von flexiblen, aussermittig gefalteten Erzeugnissen Download PDF

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Publication number
EP0522319B1
EP0522319B1 EP92110120A EP92110120A EP0522319B1 EP 0522319 B1 EP0522319 B1 EP 0522319B1 EP 92110120 A EP92110120 A EP 92110120A EP 92110120 A EP92110120 A EP 92110120A EP 0522319 B1 EP0522319 B1 EP 0522319B1
Authority
EP
European Patent Office
Prior art keywords
gripper
product part
products
product
sliding gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92110120A
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German (de)
English (en)
French (fr)
Other versions
EP0522319A1 (de
Inventor
Willy Leu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferag AG
Original Assignee
Ferag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Publication of EP0522319A1 publication Critical patent/EP0522319A1/de
Application granted granted Critical
Publication of EP0522319B1 publication Critical patent/EP0522319B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/30—Opening devices for folded sheets or signatures
    • B65H5/308—Opening devices for folded sheets or signatures the folded sheets or signatures travelling in hanging position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/32—Orientation of handled material
    • B65H2301/323—Hanging

Definitions

  • the present invention relates to a method and a device for opening flexible, off-center folded products, such as printed products, according to the preamble of claims 1 and 8, respectively.
  • a device of this type for opening eccentrically folded printed products is known from EP-A-0 208 081 and the same US Patent 4,684,117.
  • the printed products are held in their folds by individually controllable clamps.
  • the conveying direction runs obliquely downwards from above and the jaws of the grippers are directed towards the front in the conveying direction, so that the open edge area of the printed products transported in an inclined hanging position opposite the fold is leading in relation to the fold.
  • An opening device is provided below the conveyor device, which has grippers arranged on a rotatingly driven pulling element, the mutual distance of which is smaller than the distance between the clamps of the conveyor device.
  • the traction element is guided around deflection wheels at both ends of the opening device, so that the active strand runs approximately parallel to the conveying direction of the conveyor device.
  • the grippers have a fixed gripper jaw that is parallel to the pulling element and a movable gripper jaw that cooperates with the gripper jaw and is biased in the closing direction and, viewed in the conveying direction, is directed towards the rear.
  • a guide plate for the leading edges of the printed products is provided, which has a longitudinal gap through which the movable gripping jaw protrudes and which the fixed gripper jaw passes through in approximately alignment with the guide plate.
  • a ribbon conveyor is connected upstream of the opening device in order to guide the leading, open side edge of the printed products onto the guide plate.
  • the movable gripper jaw In the area of the rectilinear active run of the opening device, the movable gripper jaw is held off the fixed gripper jaw by means of a backdrop, so that until the end of the active run, as a result of the lower rotational speed of the grippers with respect to the conveying speed of the printed products, the protruding part above the printed product part Edge section of the underlying printed product part runs between the gripper jaws.
  • the backdrop releases the movable gripper jaw, so that it clamps the edge section to the fixed gripper jaw.
  • a saddle-shaped support of a collecting device is inserted between the two printed product parts lifted from one another, the two printed product parts comprising the support from above after the gripper in question has been opened.
  • the printed product falls astride on the saddle-shaped pad.
  • the conveying device and the opening device are synchronized with one another in such a way that when the movable gripper jaw grips under the edge section and lifts it.
  • the open edge region of the shorter, lower part of the product below is then inserted between the gripper jaws lifted from one another, so that the shorter product part is bent at the deflection wheel at the end of the opening device.
  • the product part having the edge section detaches from the bent product part in the same manner as described above.
  • This known opening device requires precise synchronization between the conveying device and the grippers of the opening device, and so that all printed products can be opened reliably, they may only have small dimensional tolerances and must assume a precisely defined position in the mouth of the clamps. This requires a considerable amount of material as well as considerable adjustment and adjustment work, in particular when changing from one format of the printed products to be processed to another.
  • Another opening device for opening eccentrically folded printed products which are transported by clips of a conveyor device at their leading fold is transported from EP-A-0 095 603 and the corresponding US Pat. No. 4,489,930.
  • the opening device arranged below the conveying device also has a peripheral pulling element, on which, at a fixed distance from one another, grippers are arranged. These grippers are designed to hold the edge section of the overhead printed product part protruding above the lower printed product part, while the lower printed product part is moved away from the held printed product part by means of an acceleration belt which is driven much more rapidly.
  • a saddle-shaped support is inserted between the printed product parts that are lifted off one another, onto which the printed products fall astride when the clamps of the conveying device are opened.
  • the opening device known from these documents has exactly the same disadvantages as the known opening device described above.
  • a device for opening printed products which have been introduced into pocket-shaped receiving parts of a drum-like insertion device is disclosed in CH-PS 644 814 and the same-content US Pat. No. 4,398,710.
  • the printed products rest with their fold on the bottom of the pockets and are held there by clips, and the printed products lie with their product part, which has an edge section in the open edge region opposite the fold, which projects beyond the other product part, on a wall of the receiving part.
  • a cam is displaced in the direction towards the fold, so that it runs onto the edge of the edge section and takes the edge section with it, as a result of which the relevant printed product part bulges out becomes.
  • the position of the product with respect to the gripper when the gripper jaws are brought into the closed position is not at all decisive for the subsequent opening of the products, since the position of the product parts that is relevant for opening is determined by thrusting at the edge section of the first product part projecting beyond the second product part. Due to the joint pre-bending of the detected product parts such that the first product part is on the inside, the second product part is forcibly carried along when pushing against the edge section of the first product part, so that the edge section is still guided in the sliding gap when the second product part is the same has already left. By pushing the open edge area towards the fold, the bending of the product is increased, which improves the lifting of the second product part from the first product part.
  • Clamping the edge section after ejection from the sliding gap, as specified in claim 3 or 12, allows pushing at high speed and a safe opening even of products with only a narrow projecting edge section.
  • the direction of the clamping gap formed by the pushing element and the nose cooperating with it is selected such that the bending of the first product part held in the clamping gap is increased, which further improves the lifting of the second product part (claims 4 and 13).
  • a rabbit overlapping the sliding gap leads to a strong bending of the first product part in the area of the gripper, so that the second product part detaches from the first product part immediately upon leaving the sliding gap.
  • FIG. 1 and 2 show a generally known conveyor device 10 with individually controllable clamps 14 arranged one behind the other on an endless traction element 12 driven in rotation in the conveying direction F at a fixed distance.
  • folded printed products 16 such as newspapers, magazines and the like are conveyed to a transfer area 18, where the previously opened printed products 16 are placed astride the saddle-shaped supports 20 of a collecting device 22.
  • This drum-shaped collecting device with the supports 20 which are driven to rotate around an axis of rotation in the direction of rotation U is described in EP-A-0 341 425 and the corresponding US patent application Serial No. 07/349 303 described in detail.
  • the structure and the mode of operation of this collecting device 22 are not explained in more detail in the present documents; in this regard, reference is made to the documents mentioned.
  • the transfer area 18 is preceded by an opening device 24, by means of which the printed products 16 transported in a hanging position are at least partially opened.
  • an opening device 24 by means of which the printed products 16 transported in a hanging position are at least partially opened.
  • the transfer area 18 are prevented from closing by a hold-open device 26 and are fully opened along their side edge 16 'into which the hold-open members 28 of the hold-open device 26 engage.
  • the lower conveying strand 10 ′ runs in a straight line and at right angles to the longitudinal extension of the supports 20 that runs in the horizontal direction.
  • the conveying device 10 the opening device 24 and the keep-open device 26 slanted with respect to a vertical plane, so that the printed products 16 are conveyed with a corner 16 ′′ hanging downward.
  • This has the advantage that the printed products 16 only have to be opened on one side in the area of this corner 16 '' and must be kept open at the adjoining side edge 16 ', the complete opening then takes place by moving the supports 20 from below into the open area at the Corner 16 ''.
  • the mouth 30 of the clamps 14 is directed downward in the region of the conveying active lower run 10 ′ shown and holds the printed products 16 transported in the hanging position at the fold 32.
  • the flexible printed products 16 are folded off-center, so that there is a lower open edge region 34 opposite the fold first product part 36 has an edge section 38 which protrudes beyond second product part 40. How this u. a. 2 can clearly be seen, the first product part 36 is trailing in relation to the second product part 40, viewed in the conveying direction F.
  • the opening device 24 has a plurality of grippers 42 which are at a distance which is approximately the distance between the clamps 14 of the conveyor device 10 corresponds to two laterally spaced and mutually parallel, endless chains 44, 44 'are arranged. These chains 44, 44 'are guided around deflection wheels 46, 46', so that the upper run of the chains 44, 44 'runs approximately parallel to the conveying direction F, and they are driven in the circumferential direction V in such a way that the grippers in the region of the upper run 42 move approximately synchronously with and in the same direction as the clamps 14.
  • Each gripper 42 has a plate-like, stepped base body 48 which, viewed in the direction of rotation V, is connected to the chains 44, 44 'on both sides in its leading end region via pivot shafts 50.
  • a fixed gripper jaw 52 protrudes from the base body 48 at right angles, which, seen in relation to the chain runout, protrudes towards the outside.
  • This gripper jaw 52 is cut out from the base body 48 into the free end region 52 '.
  • This cutout 54 (FIGS. 4.5) is penetrated by a cam-like pushing element 56.
  • the pushing element 56 is displaceably guided on a guide shaft 58 running parallel to the gripper jaw 52.
  • This is attached to the inside of the base body 48 and outside to a flange 60 of the gripper jaw 52.
  • a compression spring 62 which surrounds the guide shaft 58 and pushes the pushing element 56 in the direction against the rest position in which the pushing element 56 rests on the base body 48.
  • the cam-like thrust member 56 is articulated in its region projecting beyond the gripper jaw 52 on the side facing away from the guide shaft 58 to a tab 64 penetrating the base body 48, the other ends being pivotally connected to a curved lever 66 is.
  • the other end of this lever 66 is mounted on the base body 48 via a pivot shaft 68 (FIG. 4).
  • the base body 48 has in its front end region, as seen in the conveying direction, a bearing flange 70 which projects on the other side with respect to the gripper jaw 52 and in which the pivot shaft 68 is held.
  • a control roller 72 is freely rotatably mounted on it. This control roller 72 interacts with a link-like control member 74 (FIG. 3) in order to push the push member 56 from its rest position shown in FIG. 4 along the gripper jaw 52 towards its free end region 52 'into an ejection position 56' shown in FIG move.
  • the compression spring 62 pushes the pushing member 56 back into the rest position, the tab 64 and the lever 66 being brought back into the position shown in FIG.
  • a two-finger movable gripper jaw 76 interacts with the fixed gripper jaw 52, with the two fingers 78 resting on the webs 80 of the fixed gripper jaw 52 separated from one another by the cutout 54 in the closed position of the gripper jaw 76.
  • the fingers 78 and webs 80 limit two sliding gaps 82 lying in one plane for the edge region 34 of the printed products 16. These sliding gaps 82 are open at the end remote from the base body 48.
  • the fixed gripper jaw 52 with its free end region 52 ′, seen in the longitudinal direction of the sliding gaps 82, stands over the gripper jaw which is in the closed position 76 before.
  • a strip-like nose 84 is attached to the fixed gripper jaw 52, which extends over the entire width of the gripper jaw 52 and which projects at a distance from the open end of the sliding gaps 82.
  • a groove 86 with a triangular cross-section is excluded in the pushing element 56, which cooperates with the free end, the edge of the edge section 38 of the first product part 36 and when the printing product 16 in question is ejected, and in the ejecting position 56 'of the
  • the thrust member 56 with the nose 84 forms a clamping gap 88 for the edge section 38 (see FIG. 9).
  • This clamping gap 88 and the sliding gaps 82 enclose an obtuse angle.
  • the first product part 36 which has the edge section 38, comes into contact with the fixed gripper jaw 52, whereas the movable gripper jaw 76 bears against the second product part 40.
  • the nose 84 the printed product 16 gripped by the gripper 42 is bent in an S-shape between the open end of the sliding gaps 82 and the nose 84, which improves the lifting of the second product part 40 from the first product part 36 when it is ejected from the sliding gaps 82.
  • the movable gripper jaw 76 made of sheet metal in the present example is fastened to an actuating arm 90 which is pivotally mounted on a further bearing flange 70 'of the base body 48 and carries a freely rotatably mounted control roller 72' at its free end.
  • the movable gripper jaw 76 is in the closed position by means of a tension spring 92 which acts on the base body 48 at one end and on the actuating arm 90 at the other end biased.
  • the clamping effect exerted by the gripper jaws 52, 76 on the edge area 34 of the printed products 16 is dimensioned such that they cannot slide out of the sliding gaps 82 or guide gaps by themselves, but the pushing out of the sliding gaps 82 is possible without damaging the printed products 16.
  • the control roller 72 'cooperates with a link-like control member 94 in order to pivot the movable gripper jaw 76 in the region of the deflection wheels 46, viewed in the conveying direction F, at the beginning of the opening device 24 against the force of the tension spring 92 into the open position 76'.
  • the movable leading jaw 76 pivoted into the open position 76 'with the actuating arm 90 and the control roller 72' is shown in dash-dotted lines.
  • the length of the sliding gaps 82 delimited by the fixed gripper jaw 52 and the movable gripper jaw 76, measured from the groove 86 of the pushing element 56 which is at rest, to the open end of the sliding gaps 82 (approximately to the free end of the movable gripper jaw 76) is essential greater than the width of the edge section 38 of the first product part 36 projecting beyond the second product part 40, as can be seen in particular from FIG. 2 and FIGS. 6 to 9.
  • the printed products 16 are securely gripped by the grippers 42 when the gripper jaw 76 is closed, even if not all printed products 16 to be processed have exactly the same mass or not all printed products 16 occupy the exact same position in the brackets 14.
  • two angled links 96 are provided, which on one end act eccentrically to the swivel shafts 50 on the base body 48 and on the other are articulated on a chain pin 98 of the chains 44, 44', these chain bolts 98, seen in the direction of conveyance F, lagging behind the pivot shafts 50.
  • the links 96 ensure that in the area of the deflection wheels 46, 46 'the fixed gripper jaws 52 run approximately radially to the axes of rotation 100 of the deflection wheels 46, 46' and in the area of the upper, straight run between the deflection wheels 46, facing the conveying device 10, 46 'are inclined forward in the conveying direction F and circumferential direction V.
  • the pivoting movement of the grippers 42 about the pivot shafts 50 in the transition region from the deflection wheels 46 into the straight upper run means that the printed products 16 held by the clamps 14 and gripped by the gripper jaws 52, 76 are pre-bent in such a way that the first product part 36 with the edge section 38 with respect to this bend, as seen in the radial direction, is on the inside.
  • the printed products 16 held by the clamps 14 and transported in the conveying direction F are indicated by dash-dotted lines.
  • the printed products 16 are held on the fold side, so that they cannot deflect on the fold side on ejection from the sliding gaps 82 (FIGS. 1, 2).
  • the chains 44, 44 'driven in the direction of rotation V convey the grippers 42 against the deflection wheels 46 in the region of the lower run
  • the conveyor device 10 and the opening device 24 are synchronized in such a way that an open gripper 42 at the end of the rotation around the deflection wheels 46 grips around a freely suspended printed product 16 from below, as seen in FIG. 3 on the first in the conveying direction F.
  • Gripper 42 is shown.
  • the control member 94 now releases the control roller 72 ', so that the movable gripper jaw 76 can pivot into the closed position under the force of the tension spring 92.
  • the gripper 42 is pivoted via the links 96 in such a way that the free end region 52 ′ of the fixed gripper jaw 52 moves in relation to the chains 44, 44 ′ Delivery direction F makes.
  • the printed products 16 gripped by the grippers 42 are pre-bent such that, with respect to this bend, the first product part 36 with the edge section 38 with respect to the second product part 40 is inside, as is shown in particular in FIG. 7.
  • the printed products 16 are thus bent out of the plane determined by their free hanging position, so that their edge region 34 held in the sliding gaps 82 is directed obliquely downward towards the rear.
  • the grippers 42 located in the area of the upper run are moved in synchronism with the clamps 14 of the conveying device 10, as a result of which the control rollers 72 now run onto the control member 74 designed as a link, so that the pushing member 56 against the edge area 34 of the first Product part 36 is pushed ( Figure 8), the edge portion 38 is gripped with the groove 86 and the first product part 36 pushes towards the open end of the sliding gaps 82. Since the printed products 16 have now been pre-bent such that the first product part 36 is on the inside, the second product part 40 is inevitably taken along when the first product part 36 is pushed, since it rests on the first product part 36.
  • the printed products 16 are bent more strongly by the pushing in the sliding gaps 82.
  • this second product part 40 stands out due to its inherent stability and flexibility from the first product part 36 still held with its edge section 38 in the sliding gaps 82.
  • the pushing element 56 is moved further into the pushing-out position 56 ′ shown in FIG. 9, the edge section 38 of the first product part 36 is pushed out of the sliding gap 82, but this is now clamped in the clamping gap 88 between the nose 84 and the pushing element 56.
  • the bevel of this clamping gap 88 further increases the bending of the first product part 36 and extends the time for the retraction with the hold-open members 28 between the product parts 36, 40, which are partially lifted off from one another, at least in the area of the corner 16 ′′, by clamping different thicknesses
  • the control member 74 is suspended resiliently, as is indicated in Figure 3 with the compression spring 74 '. As soon as the control roller 72 runs from the control element 74 in the end region of the upper run of the opening device 24, the thrust element 56 becomes from the compression spring 62 pushed back into the rest position and the edge portion 38 of the first product part 36 released.
  • the hold-open device 26 has a shaft 104 which is freely rotatably mounted on a frame 102 of the conveyor device 10, on which the opening device 24 is also supported, onto which a hub 106 and a chain wheel 108 are wedged.
  • rods 110 arranged in a spoke-like manner are pivotably mounted on pins 112 running in the tangential direction to the axis of rotation (shaft 104).
  • Each bar 110 carries at its free end a blade-like or triangular tapered hold-open member 28, the tip of which is directed towards the side edge 16 'of the printed products 16.
  • an arm 114 protrudes from the bars 110 and carries a freely rotatably mounted roller 116 at its free end.
  • a tension spring 118 is tensioned between the arm 114 and the hub 106 in order to hold the bars 110 with the hold-open members 28 in the position indicated by dash-dotted lines in FIG. 2, in which they are pivoted back out of the area of the printed products 16.
  • a banana-shaped control link 120 is provided below which the rollers 116 each run when rotating about the shaft 104.
  • the rods 110 are pivoted approximately into a plane running at right angles to the shaft 104, as a result of which the relevant hold-open member 28 sticks into the printed product 16 opened by the opening device 24 in the region of the side edge 16 ', as shown in FIG.
  • the last gripper 42 located in the upper run as seen in the conveying direction F.
  • the distance between the free ends of the rods 110 is selected so that that it corresponds approximately to the distance between the brackets 14 of the conveyor 10, and the peripheral speed is set such that it approximately corresponds to the conveyor speed of the conveyor 10.
  • the hold-open members 28 are inclined with respect to a plane perpendicular to the respective rod 110 about an axis running parallel to the shaft 104, so that the hold-open members 28 only become parallel in a region that follows the shaft 104 in the conveying direction to the direction of conveyance.
  • the first and second product parts 36, 40 are lifted further apart from one another in the region of the side edge 16 ′, and this is further reinforced by the fact that the hold-open members 28 move towards the clamps 14.
  • a saddle-shaped support 20 of the collecting device 22 now moves from below into the printed products 16 that are opened and kept open in the area of the downwardly hanging corner 16 ′′ and the side edge 16 ′.
  • the peripheral speed of the collecting device 22 corresponds approximately to the conveying speed of the printed products 16.
  • the rollers 116 run from the control link 120, whereby the hold-open members 28 come from the area of the printed products 16 be pivoted back.
  • the conveyor 10, as shown in Figures 1 and 2, is generally known and the structure and operation of the brackets 14 are described in detail in CH-PS 644 816 and the corresponding US-PS 4,381,056.
  • the traction element 12 a conveyor chain, is guided in a C-shaped rail 122 over wheels 124 and at the end the conveyor-effective route, following the transfer area 18, is guided around a deflection wheel 126.
  • the traction element 12 has cantilevers 128 arranged at certain intervals and penetrating the longitudinal slot 122 'in the rail 122, on each of which a clamp 14 is arranged.
  • a U-shaped bracket 130 is fastened to the arm 128, on which a shaft 132 is pivotably mounted.
  • a cranked actuating lever 134 is fastened to this shaft 132 and carries at its free end an actuating roller 134 ′ which interacts with a closing link 136.
  • a leaf spring-like first clamping jaw 138 is arranged in a rotationally fixed manner on the shaft 132, which interacts with a second clamping jaw 140, which is freely rotatably mounted on the shaft 132.
  • This jaw 140 carries eccentrically to the shaft 132 a jaw roller 144 cooperating with a link 142.
  • a detent lever 146 is mounted on the second jaw 140, which cooperates with a detent on the actuating lever 134.
  • the latching lever 146 In the closed position, the latching lever 146 is latched onto the latching lug of the actuating lever 134, so that the two clamping jaws 138, 140 clamp the printed product 16 under pretension of the first clamping jaw 138 and are latched against one another.
  • the locking lever 146 runs onto an opening link 148, which causes the locking lever 146 to be released from the locking lug on the actuating lever 134.
  • the print product 16 in question falls astride the support 20. Avoiding the clamps 14 from being avoided by the jaw roller 144 rolling on the link 142.
  • the corresponding position of the clamps 14 is indicated by determines the two scenes 136 and 142, which hold the clamps 14 in the corresponding position via the actuating roller 134 'and jaw roller 144. This position of the clamps 14 is maintained in the area of the opening device 24, the hold-open device 26 and in the transfer area 18.
  • the conveying movement of the pulling element 12 is removed from the deflection wheel 126 and transmitted to a drive shaft 152 via a first chain drive 150.
  • the sprocket 154 is operatively connected to the sprocket 108 of the hold-open device 26 via a chain 156.
  • FIG. 11 shows a gripper 42, as already shown in FIG. 4 and described in detail above.
  • the direction of rotation V which corresponds to the conveying direction F, is indicated by an arrow.
  • the first product part 36 with the edge portion 38 in the printed product 16 held by the gripper 42, not shown, the first product part 36 with the edge portion 38, viewed in the direction of rotation V or conveying direction F, trailing with respect to the second product part 40.
  • the gripper jaws 52 and 76 By pivoting the gripper jaws 52 and 76 towards the front, the detected printed product becomes 16 pre-bent so that with respect to this bend the first product part 36 is on the inside and the second product part 40 is on the outside.
  • FIG. 12 shows a gripper 42 which corresponds in structure and mode of operation to the gripper shown in FIG. 11. However, it is arranged on the chains 44, 44 'with respect to the conveying direction F and the circumferential direction V in reverse. The result of this is that the sliding gaps 82 formed by the gripper jaws 52, 76 are pivoted backwards.
  • the arrangement of the grippers 42 shown in FIG. 12 is suitable for opening printed products 16 in which the first product part 36 with the edge section 38 is leading with respect to the second product part 40, as is the case with the edge region 34 of a further printed product 16 shown in dash-dotted lines is indicated. In this case too, a corresponding pre-bending of the printed products 16 is achieved by pivoting the gripper 42.
  • the pivoting of the grippers 42 from the plane of the uninfluenced printed products is not absolutely necessary if the nose 84 is designed accordingly in order to achieve sufficient pre-bending in order to continue bending in the same direction when the printed products 16 are ejected from the To ensure sliding gap 82.
  • the nose 84 can optionally be dispensed with if pre-bending of the printed products 16 is ensured in another way, for. B. by pivoting the sliding gap 82nd
  • grippers can replace the opening device described for example in CH-PS 644 814 and US-PS 4 398 710.
  • both gripper jaws can be moved or the movable gripper jaw can be moved towards and away from the fixed gripper jaw transversely to the plane of the sliding gaps. It is also conceivable not to move the pushing element in a translatory manner, but rather to make it pivotable.
  • the opening device according to the invention and the method according to the invention are suitable both for opening single, folded sheets and for multi-sheet printed products.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP92110120A 1991-07-11 1992-06-16 Verfahren und Vorrichtung zum Oeffnen von flexiblen, aussermittig gefalteten Erzeugnissen Expired - Lifetime EP0522319B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH207491 1991-07-11
CH2074/91 1991-07-11

Publications (2)

Publication Number Publication Date
EP0522319A1 EP0522319A1 (de) 1993-01-13
EP0522319B1 true EP0522319B1 (de) 1995-02-01

Family

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EP92110120A Expired - Lifetime EP0522319B1 (de) 1991-07-11 1992-06-16 Verfahren und Vorrichtung zum Oeffnen von flexiblen, aussermittig gefalteten Erzeugnissen

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Country Link
US (1) US5248135A (ja)
EP (1) EP0522319B1 (ja)
JP (1) JP2534601B2 (ja)
DE (1) DE59201323D1 (ja)

Families Citing this family (19)

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DE59405887D1 (de) * 1993-10-08 1998-06-10 Ferag Ag Vorrichtung zum Oeffnen und Weitertransportieren von Druckereiprodukten
CH689976A5 (fr) * 1994-05-24 2000-02-29 Bobst Sa Dispositif de commande de la prise d'un élément en plaque par des pinces au sein d'une machine de traitement de tels éléments.
EP0721903B1 (de) * 1995-01-13 1998-08-12 Ferag AG Vorrichtung zum Öffnen von Druckereiprodukten und Einrichtung zum Verarbeiten von Druckereiprodukten
US5758871A (en) * 1996-09-25 1998-06-02 Heidelberg Finishing Systems, Inc. Signature collating apparatus
DE19642117A1 (de) * 1996-10-12 1998-04-16 Koenig & Bauer Albert Ag Klemmzange für Endlosförderer
EP1259449B1 (de) 2000-03-03 2005-09-14 Ferag AG Verfahren und vorrichtung zum ablegen flächiger erzeugnisse
DK1259446T3 (da) * 2000-03-03 2006-09-18 Ferag Ag Klemme til fastholdelse og anordning til transport af to- og flerdelte, fleksible, flade genstande
US6726000B2 (en) 2000-03-03 2004-04-27 Ferag Ag Method of, and apparatus for, raising sheet-like products
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DE59201323D1 (de) 1995-03-16
JPH05213479A (ja) 1993-08-24
EP0522319A1 (de) 1993-01-13
US5248135A (en) 1993-09-28
JP2534601B2 (ja) 1996-09-18

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