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
  • B65H3/00—Separating articles from piles
  • B65H3/08—Separating articles from piles using pneumatic force
  • B65H3/0808—Suction grippers
  • B65H3/085—Suction grippers separating from the bottom of pile
  • B65H3/0858—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated
  • B65H3/0875—Suction grippers separating from the bottom of pile this action resulting merely in a curvature of each article being separated the final separation being performed by mechanical grippers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
  • B65H29/66—Advancing articles in overlapping streams
  • B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H3/00—Separating articles from piles
  • B65H3/32—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile
• • 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
  • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
  • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
• • 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
  • B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
• • 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
  • B65H2301/40—Type of handling process
  • B65H2301/44—Moving, forwarding, guiding material
  • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
  • B65H2301/4473—Belts, endless moving elements on which the material is in surface contact
• • 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
  • B65H2301/40—Type of handling process
  • B65H2301/44—Moving, forwarding, guiding material
  • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
  • B65H2301/4473—Belts, endless moving elements on which the material is in surface contact
  • B65H2301/44732—Belts, endless moving elements on which the material is in surface contact transporting articles in overlapping stream
• • 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
  • B65H2301/40—Type of handling process
  • B65H2301/44—Moving, forwarding, guiding material
  • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
  • B65H2301/4474—Pair of cooperating moving elements as rollers, belts forming nip into which material is transported

Definitions

• the present invention relates to a method and a device for transferring flat, flexible products stored in a product stack, in particular printed products, according to the preamble of claim 1 or of claim 7.
• the device is intended to reduce a product stack, in particular a stack of printed products, from below and store the individual products for further processing on a belt conveyor.
• the device has a plurality of grippers and suction organs, wherein each gripper is associated with a suction device leading the gripper.
• the grippers and suction organs are attached to a carrier wheel.
• a suction member In order to dismantle the stack, a suction member, in a receiving region, grips the product lying in the product stack in its leading edge region and transfers this product to the trailing gripper. This gripper holds the product in the leading edge area and by a rotation of the carrier wheel, the product is pulled out of the product stack.
• the product is conveyed into a transfer area, in which this is placed on a belt conveyor and released after placing the product from the gripper.
• the direction of movement of the gripper is equal to the conveying direction of the belt conveyor.
• This known device has the disadvantage that the conveying direction of the belt conveyor is coupled to the direction of movement of the gripper in the transfer region. This can be detrimental to the processing of folded printed products.
• Folded printed products are preferably gripped by the suction member or by the gripper near the fold or waistband, which consequently lies in the leading edge region. Once the product is stored on the belt conveyor, in turn, the fold is leading. Processing of the product such that on the belt conveyor a flower opposite the fold forms the leading edge of the printed product and the fold the trailing edge of the printed product is not possible with the device known from EP-A-1 226 083.
• the rollers are arranged on two conveyor members and lie directly below the product stack in a horizontal plane.
• the rollers are arranged on the conveyor members such that the rollers are aligned in a region directly below the product stack parallel and at regular intervals and outside of this range in a plane in which the conveying member is located, and are pivoted away.
• Another similar apparatus for mining a product stack is known from EP-A 1 254 855.
• the product stack rests on freely rotating rollers.
• the rollers are arranged pivotably on a feed wheel such that they are aligned in a region below the product stack parallel to the axis of rotation of the feed wheel and outside this range in a plane in which the feed wheel is located, pivoted and at least approximately tangentially.
• the object of the present invention is to further develop the known method and the known device such that the industry, CONVEYORS 'ichtung of the belt conveyor decoupled from the movement direction of the gripper in the transfer area is.
• the gripper conveying the product travels in the transfer region to a pressure roller, as a result of which the product held in the gripper is pressed radially outward at a distance from the leading edge region.
• the gripper releasing it at least approximately simultaneously with the start of pressing of the product.
• the product is a folded printed product, wherein the leading edge region runs parallel to a fold of the product and directly adjacent to this.
• the conveyance of the product placed on the belt conveyor takes place in the opposite direction to the direction of movement of the gripper in the transfer area. Thereby, the direction of movement of the product is reversed after delivery from the gripper to the belt conveyor.
• the gripper runs in the transfer area the gripper a pressure roller, which starts at least approximately simultaneously with the release of the product from the gripper this product to the belt conveyor, whereby the product is immediately taken by a conveyor belt of the belt conveyor.
• the conveying direction of the belt conveyor is set opposite to the direction of movement of the gripper in the transfer area. It is thereby achieved that the edge region which is leading between the receiving region and the transfer region lies after the transfer from the gripper to the belt conveyor on the belt conveyor.
• Fig. 1 in side view a first embodiment of a belt conveyor and a first embodiment of a carrier of a device according to the invention, wherein the carrier wheel five functional units consisting of a gripper, a gripper leading suction member and a gripper trailing pressing member are arranged on the carrier wheel and the direction of movement the belt conveyor is opposite to the carrier wheel
• FIG. 2 is a side view of a receiving area of the inventive device in which a resting on freely rotatable stack of folded printed products from below is degraded by means of a suction and is passed to a suction device trailing gripper, the suction organs and gripper according to a carrier a second embodiment are arranged;
• FIG. 3 in side view of the transfer area of the device according to FIG. 2, in which the products held by the grippers on a
• Movement direction of the belt conveyor is opposite to the direction of movement of the
• Gripper in the transfer area Fig. 4 in side view arranged on the carrier wheel according to the second embodiment, a complete functional unit consisting of a gripper, a gripper leading suction member and a trailing the gripper
• Anpressorgan and a rotary actuator wherein a pressure roller of the pressing member of a leading functional unit and a suction head of a suction member of the trailing functional unit are shown in phantom;
• FIG. 5 shows a side view of a section of the transfer area according to FIG. 3 with a gripper, a suction element leading in comparison to the gripper and a contact roller trailing in comparison to the gripper, which presses a printed product released from the leading gripper against the belt conveyor;
• FIG. 6 shows a side view of the detail according to FIG. 5 at a later point in time, wherein the pressure roller presses the released printed product onto the belt conveyor;
• Fig. 7 in side view a first embodiment of the inventive device, which in its
• FIG. 8 is a side view of a second embodiment of the inventive device, wherein the Conveying member for the support rollers allows conveying away in two opposite directions of conveyance.
• FIG. 1 shows a first embodiment of a carrier wheel 24 with arranged thereon grippers 26, suction members 28 and Anpressorganen 30 and a first embodiment of a belt conveyor 20 of an inventive device, which is intended to flexible, flat products 10, in particular folded printed products 12, which in a product stack 14 (see also FIGS. 2, 7 and 8) to be detected within a receiving area 15 at a leading edge in the subsequent step area 16 and store these products 10 within a transfer area 19 on the belt conveyor 20. If, as shown in FIG. 1, the products 10 are folded printed products 12, a fold 18 of these products 10 lies in the leading edge region 16.
• the grippers 26, suction members 28 and pressing members 30 are arranged radially outwardly, wherein the same number of grippers 26, suction members 28 and pressing members 30 are present.
• the grippers 26 are arranged in the circumferential direction at regular intervals from each other on the carrier wheel 24.
• Each gripper 26 is formed of two - a leading and a trailing - legs 32, 34 which are arranged around a gripper axis 36 pivotally mounted on the carrier wheel 24 and spring-loaded in a closing direction.
• the gripper axes 36 lie on a circular cylinder surface 38, wherein the axis of this circular cylinder coincides with the wheel axle 22.
• the Carrier wheel 24 rotates, as indicated by the arrow R, clockwise.
• the leading leg 32 is rigid and the trailing leg 34 is flexible. This makes it possible to accommodate products 10 of different thickness, without having to readjust the device.
• each leg 32, 34 has an associated guide roller 40, 42, which are guided at least partially on guide slots 44, 46.
• guide slots 44, 46 each leg 32, 34 is controlled in a suitable manner, whereby an opening and closing and pivoting of the gripper 26 about the gripper axis 36 takes place in dependence on the angle of rotation of the carrier wheel 24.
• the gripper 26 forms together with the leading suction member 28 and the trailing
• Pressing member 30 is a functional unit 48. Consequently, the arranged on the carrier wheel 24 number functional
• Each suction member 28 has a suction head 50 which is pivotally connected about a pivot axis 52 parallel to the pivot axis 52 on a base or support unit 51, wherein the base or support unit 51 in turn is fixedly arranged on the carrier wheel 24.
• the suction head 50 is pivotable about a pivoting drive, not shown, in a known manner (see also Fig. 4), which has a guide roller and a co-operating with the guide roller guide slot.
• the base or support unit 51 is rod-like and protrudes in the radial direction from the carrier wheel 24.
• Each pressing member 30 has a freely rotatable pressing roller 54, which is arranged at an end portion of a rod-like pivot arm 56.
• One of the pressure roller 54 opposite end portion of the pivot arm 56 is pivotally mounted on a support wheel 24 further arranged base or support unit 51 ', which is also rod-like and protrudes in the radial direction of the carrier wheel 24.
• the position or movement of the pivot arm 56 is also controlled by a pivot drive in a known manner (see again Fig. 4), which has a guide wheel and a guide link associated with this guide.
• the products 10 held by the grippers 26 are guided between the receiving area 15 and the transfer area 19 along a sliding surface 58.
• the sliding surface 58 is formed by a carrier wheel 24 facing surface of a guide member 60, for example, a guide plate.
• the device shown in FIG. 1 has an upstream end region of the belt conveyor 20 according to a first embodiment.
• a conveying direction F of a conveyor belt 64 of the belt conveyor 20 is opposite to the direction of movement of the grippers 26 in the transfer area 19.
• FIGS. 2 to 6 show a second embodiment of the carrier wheel 24 with grippers 26 arranged thereon. Suction organs 28 and pressing members 30 of the inventive device shown.
• the second embodiment of the carrier wheel 24 is formed substantially the same as that of the first embodiment. Only the arrangement of the suction members 28 and the Anpressorgane 30 is different.
• the Basis state. Support unit 51 of each suction member 28 is also the base or carrier unit of the pressing member 30 of the directly leading functional unit 48. Consequently, between two grippers 26 is a single, common Basisl. Support unit 51 for the suction head 50 as well as for the pivot arm 56 with the pressure roller 54 present.
• the actuatable by means of a rotary actuator pivot arm 56 is formed as one of two arms of an angle lever 70. At the free end portion of the other arm of the suction head 50 is arranged.
• the angle lever 70 is in turn arranged pivotably on the free end region of the rod-like base or carrier element 51 via a pivot axis 52 extending parallel to the wheel axle 22.
• small translation roller 72 of the pivot drive With the angle lever 70 is a rotatable about the pivot axis 52, small translation roller 72 of the pivot drive firmly connected (see in particular Fig. 4), which is arranged with a arranged on the carrier wheel 24 large translation roller 74 of the pivot drive via a suitable transmission member 76, such as a toothed belt, works together.
• the large translation roller 74 is fixedly connected to a control lever 73 of the pivot drive, at the free end portion of a freely rotatable guide roller 78 is arranged.
• This guide roller 78 of the pivot drive cooperates with a guide slot, not shown, of the pivot drive, whereby the position of the angle lever 70 is controlled.
• the arrangement of suction head 50 and pressure roller 54 on the angle lever 70 is such that the suction head 50 facing the trailing gripper 26 and the pressure roller 54 facing the leading gripper 26.
• a gripper 26 with the - with respect to this gripper - leading suction member 28 and the trailing pressure member 30 forms a functional unit 48th
• a second embodiment of the belt conveyor 20 is shown.
• An active, upper run of the conveyor belt 64 of the belt conveyor 20 passes - except in the transfer area 19 - via a support member 62 of the belt conveyor 20.
• the support member 62 has a recess 66 which is spanned by the upper run of the conveyor belt 64.
• the conveyor belt 64 is pressed in the region of the recess 66 by a mounted on an edge region of the recess 66 leaf spring 68 from below upwards.
• the belt conveyor 20 is able to compensate for differences in the thickness of the products 10.
• a zero position of the leaf spring 68 with respect to the upper run - and thus a pressure at which the leaf spring 68 still pushes the upper run up - is adjustable.
• the belt conveyor 20 shown in FIG. 1 according to the first embodiment may be combined with the carrier wheel 24 according to the second embodiment shown in FIGS. 2 to 6 or the belt conveyor 20 according to the second embodiment with the carrier wheel 24 according to the first embodiment.
• FIGS. 7 and 8 an embodiment of the device according to the invention is shown in side view in each case; this is a so-called investor 88.
• the device shown in Fig. 7 is internally equipped with a carrier wheel 24 according to the first or second embodiment (see Fig. 1 and Fig. 2 to 6), the carrier wheel 24 with the functional units 48 not shown for the sake of clarity is.
• the belt conveyor 20 according to the first or second embodiment protrudes laterally from a housing 90 of the device.
• the product stack 14 formed from a multiplicity of folded products 10 lies with its leading edge region 16 on freely rotatable carrier rolls 80 which are arranged on a conveying member 82.
• An edge region 17 following the leading edge region 16 rests on one or more further freely rotatable, stationary support rollers 80 '(see FIG. 2).
• the conveyor member 82 for the support rollers 80 is formed as a wheel which rotates about an axis parallel to the wheel axle 22 of the carrier wheel 24 axis.
• the direction of rotation R 'of the conveying member 82 is the same as the direction of rotation R of the carrier wheel 24.
• the support rollers 82 mounted on the conveying member 82 move under the product stack 14 from the leading edge region 16 in the direction of the trailing edge region 17.
• Each of the support rollers 82 arranged on the conveying member 82 is pivotable about an axis tangential to the conveying member 82 so that it is pivotable from a position perpendicular to the conveying member 82, parallel to the wheel axle 22 in a radially away from the conveying member 82 position.
• Each of the support rollers 80 is biased by a spring element which urge the support rollers 80 in the radially projecting from the conveyor member 82 position.
• the pivotal movement of the support rollers 80 is controlled by means of a belt formed as a belt link 84. By the pivoting gate 84, the support rollers 80 are urged into the position parallel to the wheel axle 22.
• the conveying member 82 is arranged laterally next to the belt conveyor 20. Thus, the support rollers 80 are guided laterally on the belt conveyor 20, the
• Carrier rollers 80 pivoted by the rotational movement in the direction of rotation R "of the conveying member 82 and by the pivoting gate 84 between the receiving area 15 and the transfer area 19 in the plane of the conveying member 82.
• the support rollers 80 are pivoted in the direction of rotation after passing on the belt conveyor 20 again in the position parallel to the wheel axis 22 and remain for subsequent support of the product stack 14 in this position.
• the inventive device requires a low overall height.
• Each of the conveying organs is arranged laterally to the belt conveyor.
• Each support roller is in each case arranged on one of the two conveying member such that, if it is pivoted into the position parallel to the wheel axle 22, the free end portion of the support roller in the direction of the other conveying member and aligned with a support member disposed on the other conveying member. Further, a distance between the two conveying members is selected such that the support rollers are spaced apart in their aligned parallel to the wheel axis 22 position of the other conveyor member arranged support rollers.
• the carrier wheel 24 is preferably arranged centrally between the two conveying members. As a result, the suction elements 28 arranged on the carrier wheel 24 can reach through in the receiving area 15 through a gap formed between two support rollers aligned with one another.
• the embodiment of the device shown in FIG. 8 is designed substantially the same as the embodiment of the device shown in FIG. 7.
• a displaceable belt conveyor according to a third embodiment is used and an arrangement of the pivoting roller 84 controlling the support rollers 80 is changed.
• the belt conveyor 20 of the embodiment shown in Fig. 8 is adapted to be operated in two different positions, the products 10 delivered by the grippers 26 to the conveyor belt 64 being in one position in the opposite direction to the direction of movement of the grippers 26 in the Transfer region - in the conveying direction F, as in the first embodiment shown in Fig. 7 - and in the other position in the direction of movement of the gripper 26, are conveyed in the conveying direction F '.
• the belt conveyor is shown in two positions, wherein the position of conveying in the conveying direction F belt conveyor 20 is shown with dash-dotted lines and the position of conveying in the conveying direction F 1 belt conveyor 20 with solid lines.
• the belt conveyor 20 can be moved from one position to the other position in or against its conveying direction F, F '. In each position, the conveying direction F, F 'is such that an upstream end portion of the belt conveyor 20 is within the transfer portion 19 and a downstream end portion of the belt conveyor 20 protrudes from the housing 90 of the apparatus.
• the apparatus of the present invention shown in FIG. 8 can convey folded printed products 12 such that the printed products 12 are either the same as or similar to the embodiment shown in FIG. 8
• the support rollers 80 of the embodiment shown in Fig. 8 must therefore be pivoted in a wider range in a radially wegêt position compared to the embodiment shown in Fig. 7, so that the support rollers 80 guided in both possible positions of the belt conveyor 20 on this laterally become.
• This is realized by a two-part, belt-like pivoting gate 84.
• the one, overhead part 84 'of the pivoting gate 84 forces the support rollers 80 in the receiving area 15 in the position parallel to the wheel axis 22.
• the other, lower part 84 "' of the pivoting gate 84 forces the support rollers 80 below the belt conveyor 20 in a position parallel to the wheel axle 22, whereby the overall height of the device can be kept low again.
• each conveyor belt is formed by a plurality of parallel conveyor belts.
• the two conveyor belts overlap such that in each case between two conveyor belts of a conveyor belt, a belt of the other conveyor belt is located.
• Fig. 1 shows the promotion of the products 10 from the receiving area 15 to the transfer area 19 by means of the first embodiment of the carrier wheel 24 and the delivery of the products to the belt conveyor 20 according to the first embodiment.
• FIG. 2 shows the recording, promotion and delivery of the products 10 by means of the second embodiment of the FIG. 2 showing the gripping of the product 10 at the bottom of the product stack 14 and the peeling and pulling out of the lowermost product 10 from the product stack 14.
• FIG. 4 shows a region which lies between the receiving region 15 and the delivery region 19.
• FIGS. 5 and 6 each show the dispensing area 19, with FIG. 6 showing this dispensing area 19 at a somewhat later point in time than FIG. 5.
• the device according to the invention operates as follows, reference being made to the embodiments shown in the figures and only a single functional unit 48 being considered. All other functional units work accordingly.
• the conveying member 82 with the support rollers 80 attached thereto rotates in the same direction R as the carrier wheel 24 and at the same speed as the carrier wheel 24.
• the carrier wheel 24 as well as the conveying member 82 rotates clockwise.
• the product 10 passes from the receiving area 15 into the transfer area 19.
• the product 10 is initially held by the gripper 26 during the trailing end area of the product 10 abuts the sliding surface 58 (see FIGS. 5 and 6).
• the carrier wheel 24 By further rotation of the carrier wheel 24 reaches the product 10 - except in the held by the gripper 26 leading edge portion 16 - finally in contact with the conveyor belt 64 or to the previously delivered to the belt conveyor 20 product 10. Shortly before the pressure roller 54, the product 10 to the conveyor belt 64 presses, the leading edge portion 16 is released by the gripper 26. If, as shown in Figs. 3, 5, 6 and 8 on the conveyor belt 20 by the products 10 a scion formation is formed, the product 10 is preferably by the pressure roller 54 in an area outside the overlap of the leading product 10 to the conveyor belt 64th pressed. For pressing the product 10 to the conveyor belt, the pressure roller 54 is given away by means of the pressure roller 78 cooperating with a guide slot (see also FIG. 4). The pressure roller 78 ensures that the product 10 is immediately taken by the conveyor belt 64.
• the conveying direction F 'of the belt conveyor 20 can also be directed the same as the conveying direction of the grippers 26 in the transfer area 19.
• a scale formation is formed from the products 10 removed from the product stack 14 or, if the conveying speed is increased (see FIG 1, 7), the products 10 are placed individually and spaced apart on the conveyor belt 64.
• the belt conveyor 20 is in its vertical distance to the wheel axle 22 of the carrier wheel

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• 2006
  • 2006-10-02 AT AT06790925T patent/ATE525318T1/de active
  • 2006-10-02 US US12/092,332 patent/US7926665B2/en not_active Expired - Fee Related
  • 2006-10-02 AU AU2006310965A patent/AU2006310965B2/en not_active Ceased
  • 2006-10-02 RU RU2008121919/21A patent/RU2411176C2/ru not_active IP Right Cessation
  • 2006-10-02 WO PCT/CH2006/000534 patent/WO2007051324A1/fr active Application Filing
  • 2006-10-02 EP EP06790925A patent/EP1943173B1/fr not_active Not-in-force
  • 2006-10-02 DK DK06790925.9T patent/DK1943173T3/da active
  • 2006-10-02 CA CA002626482A patent/CA2626482A1/fr not_active Abandoned

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