EP1834913A1 - Dispositif pour ramasser et convoyer des produits plats - Google Patents

Dispositif pour ramasser et convoyer des produits plats Download PDF

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Publication number
EP1834913A1
EP1834913A1 EP07002239A EP07002239A EP1834913A1 EP 1834913 A1 EP1834913 A1 EP 1834913A1 EP 07002239 A EP07002239 A EP 07002239A EP 07002239 A EP07002239 A EP 07002239A EP 1834913 A1 EP1834913 A1 EP 1834913A1
Authority
EP
European Patent Office
Prior art keywords
product
gripper
separierelemente
separating
products
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.)
Withdrawn
Application number
EP07002239A
Other languages
German (de)
English (en)
Inventor
Roberto Fenile
Alex Keller
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 EP1834913A1 publication Critical patent/EP1834913A1/fr
Withdrawn legal-status Critical Current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
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/14—Details of grippers; Actuating-mechanisms therefor
    • 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
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/06—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by rotating members
    • 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6654—Advancing articles in overlapping streams changing the overlapping figure
    • 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
    • B65H29/669—Advancing articles in overlapping streams ending 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4224—Gripping piles, sets or stacks of articles
    • B65H2301/42242—Gripping piles, sets or stacks of articles by acting on the outermost articles of the pile for clamping 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
    • 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
    • B65H2301/4471—Grippers, e.g. moved in paths enclosing an area
    • B65H2301/44714—Grippers, e.g. moved in paths enclosing an area carried by rotating members
    • 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

Definitions

  • the present invention relates to a device for receiving and conveying flat products according to the preamble of claim 1.
  • a generic device in the form of a receiving and transfer wheel is from the EP-A 1 055 620 known. It comprises a plurality of grippers and a plurality of separating elements in the form of suction organs, which are arranged on a common transport wheel. Each gripper is assigned a separating element. The separating elements serve to lift a product, which is located in a receiving region below the transport wheel, by suction at least partially such that it can be grasped by a gripper.
  • the male product is located in a stationary stack or in a moving scale formation and is directly on a support or at least partially on other products. By rotation of the transport wheel, the product is completely lifted, released after about half a revolution of the transport wheel by the corresponding gripper and stored in a scaly formation on a belt conveyor.
  • Suction elements as separating elements have various disadvantages: Firstly, the necessary suction air supply and control complicates the construction and operation of the receiving and transfer wheel. Furthermore, a suction device for lifting thicker, stiffer or provided with loose inserts products, such as newspapers, magazines or catalogs, as well as for simultaneous Lifting several products, especially for the formation of mini-stacks, only partially or not at all suitable.
  • the EP-A 1 364 900 discloses a transfer device that does not require any separating elements that are present in addition to grippers.
  • the grippers themselves are movable relative to the male products so that a gripper jaw grips and lifts one or more products. The product or products are then grabbed by closing the gripper of the same gripper and transported away. In practice, it has been shown that the gripping under one of the gripper jaws can severely restrict the flexibility of the device.
  • DE 196 01 693 discloses for this purpose to lead the imbricated formation as a whole to a deflection wheel which is displaceable relative to a supply and a removal device. A separation of the products or change of the product layer within the imbricated formation is not possible here.
  • the invention is therefore based on the object, a device of the type mentioned so that there is greater flexibility in terms of the mechanical properties of the male products.
  • the separating elements each comprise at least one blade element which is able to grasp and lift an edge of a product resting at least partially on another product or on a support.
  • Under gripping is understood to mean insertion of the blade element between the product to be lifted and the product underneath, which is not to be lifted, or the support.
  • the separating element is independent of the gripper in the sense that it is either mechanically separated from it or stored on the gripper, but is movable relative to the gripper jaws.
  • the blade element or its free front edge is first lowered in the direction of movement behind the edge of the product to be lifted and then moved relative to the product at an increased speed. It engages under the trailing edge of the product to be lifted, separating it from the rest of the products or the edition.
  • a relative movement of the blade member up the trailing edge of the product is raised and placed in a position in which it is gripped by a gripper. That is, a product edge is inserted through the blade element into the open gripper jaw.
  • the function of the blade element is preferably supported by a stationary arranged to the trajectory of the blade elements stop.
  • the stop forms a resistance to the leading edge of the product.
  • the trailing edge is at the movement of Blade elements along their trajectory thus further pushed along the blade element or deeper into the gripper mouth.
  • Separating element and gripper and the corresponding trajectories are independent in principle. At least in the receiving area, however, a separating element is functionally assigned to each gripper. The movement paths are at least in the receiving area parallel to each other and the speeds matched.
  • the blade elements preferably comprise or limit a support surface which at least partially supports the product edge or surface to be picked up during the picking process.
  • the blade element is moved in such a way that, at least in the receiving region, the support surface protrudes from the spatial region, which is swept by the grippers as they move, in the direction of the products to be picked up. Before and after the receiving area, the support surface is preferably within this space area.
  • the blade elements are moved relative to the grippers so that the support surface in the receiving area - seen in side view - opens into a gripper jaw or at least partially therein.
  • the support surface is preferably convexly curved with respect to the direction of movement of the separating elements. This supports the process of grasping and lifting and ensures a gentle treatment of the products.
  • the described movements can be achieved by suitable choice of the shape of the trajectories of the gripper, the separating elements and optionally the male products and by selecting the speeds in Realize dependence on each other.
  • the blade element is also movable relative to its trajectory, in particular pivotable, in order to realize the above-described approaching and reaching below the male product in a simple manner.
  • the separating elements and grippers can then also be conveyed along the same path of movement and at the same speed.
  • the device according to the invention is advantageously used to relocate incoming printed products in an imbricated formation. For example, by unwinding a reel used for temporary storage, often a flake formation is formed, which is unfavorable for further processing, e.g. Trailing edge trailing. This must therefore be in another formation, e.g. Leading edge, be transferred.
  • the products are conveyed to the receiving area by means of a feed device, in particular in an imbricated formation, by the grippers, e.g. taken at the trailing edge and in a delivery area with change of the formation, e.g. ahead with the gripped edge, to a removal device, in particular a belt conveyor handed over.
  • the leading in an incoming scale formation and underlying edges of the products are so to trailing and overhead edges of an expiring scale formation.
  • the feed device and the removal device are components of the device according to the invention.
  • the products can also be supplied individually.
  • the device according to the invention has means to compensate for irregularities or gaps in the incoming formation, so that upon delivery to the removal device a regular, pulsed outflowing formation results. Similarly, it may be desirable to selectively insert gaps in the outflowing formation or to change the product spacing in the outflowing formation.
  • grippers and separating elements can therefore be moved in and against the conveying direction of the feed device in a further advantageous embodiment of the invention.
  • a preferably existing stop is also moved.
  • grippers and separating elements are arranged on a preferably common transport member, in particular a transport wheel, which is mounted on a movable carriage. If the product distance is too great - for example if there is a missing product - the transport organ will move towards the product to be picked up, thus reducing the effective product distance. If the product distance is to be increased, the movement is reversed.
  • the separating elements are preferably controllable independently of the grippers, which has advantages in particular in connection with a displaceable transport member. Your control can then be preferably adapted to perform the movement of the under gripping and lifting even with a displacement of the transport member in the right place relative to the moving product.
  • FIG. 1 shows a side view of a device 1 according to the invention with a transport element which can be rotated about a horizontally extending axis 11 in the form of a transport wheel 10, on each of which a plurality of grippers 12 and separating elements 14 are arranged. These are moved by rotation of the transport wheel 10 in the direction of the arrow counterclockwise along a substantially circular gripper or separating elements movement path U.
  • the structure of the transport wheel 10 and the gripper corresponds substantially to that in the EP-A 1 055 620 described device, to which reference is made.
  • the separating elements 14 are shown in detail in FIG. 4.
  • the transport wheel 10 is coupled along its circumference at equidistant intervals with grippers 12 and separating elements 14.
  • the number of grippers 12 is equal to the number of separating elements 14.
  • the separating elements 14 each comprise a carrier unit 16 which projects radially outward from the transport wheel 10 and is rigidly coupled to the transport wheel 10.
  • the carrier unit 16 projects slightly beyond the grippers 12 in the radial direction.
  • a blade element 18 is arranged pivotable about an axis 26 extending parallel to the axis of rotation 11.
  • the blade element 18 comprises two legs 18a, 18b which are arranged in a side view in a V-shaped manner relative to one another.
  • a first leg 18a is pivotally connected at one end to the carrier unit 16 about the axis 26.
  • the blade element 18 is at least pivotable so that its front edge 18c in a first position radially within the space swept by the grippers 12 space and in a second position radially outside this range. Thus, the front edge 18 c can be approximated to the products 28.
  • the blade elements 18 are pivotable about the axis 26 through an angle of 360 °. They are in the side view shown in planes in front of or behind the gripper 12. Preferably, per gripper 12, two blade elements 18 are each located laterally of the gripper 12 (not visible in this view). The exact construction of the separating elements 14 and the pivoting mechanism will be described below with reference to FIG. 4.
  • the grippers 12 also have a base or carrier unit 20, by means of which they are mounted on the transport wheel 10. They further comprise two gripper jaws 22, 24 which can assume different positions relative to one another and to the transport wheel 10.
  • the gripper jaws 22, 24 can be pivoted, for example, between an open and a closed position.
  • the gripper 12 can be pivoted as a whole relative to the movement path U or to its support unit 20 about the gripper axis.
  • the described movements are accomplished with two guide slots 62, 64.
  • the two guide slots 62, 64 cooperate with a respective guide roller 58, 60 (see FIG. 5), which are each associated with a gripper jaw 24, 22.
  • the movement path U of the respective carrier units 16, 20 of the separating elements 14 or grippers 12 is understood below the movement path U. It is independent of the movements of the blade elements 18 and the gripper jaws 22, 24.
  • the direction of movement of the gripper 12 and separating elements 14 along the movement path is understood as the direction of movement.
  • gripper 12 and separating elements 14 can also be moved in other ways, for example by coupling to a - also common - conveying member or individually along suitably shaped guide rails. It is not mandatory that the gripper trajectory is congruent with the Separieriata movement path, as well as other than a circular path can be selected.
  • the movement path in the delivery area can be U-shaped as in the device according to FIG EP-A 1 364 900 , Instead of a purely mechanical control of the gripper or the separating elements and an electronic control is also considered to achieve the mentioned movements along and relative to the trajectory.
  • the support surface 34 is presently formed by a conveyor belt 37 of a feed device 36 in the form of a belt conveyor.
  • the area between the transport wheel 10 and the bearing surface 34, in which the product takes place, is referred to as receiving area 66.
  • a support conveyor 102, the upper run in the plane of Conveyor belt 37 of the belt conveyor 36 is, serves - in particular in a displaceable transport wheel 10 - to prevent the sagging of the conveyor belt 37 and to establish a defined distance between the orbit U and the support surface 34.
  • the products 28 are present in an imbricated formation S on the conveyor belt 37, which moves them in a horizontal feed direction F here.
  • the feed direction F runs in the transfer area parallel or tangential to the movement path U.
  • the blade elements 18 and grippers 12 are moved over a distance as large as possible approximately parallel to the male products 28 in order to achieve a safe and gentle takeover.
  • the conveying device 38 is likewise a belt conveyor, on the conveyor belt of which the products are deposited in an imbricated formation S 'and conveyed away in a conveying direction F' running counter to the original conveying direction F.
  • the folded edges of the products 28 are in the outgoing scale formation S 'below a leading product and in the conveying direction F' forward, while they are oriented in the incoming scale formation S in the feed direction F to the rear and rest on a trailing product.
  • the stop 40 In the feed direction F behind the transport wheel 10 there is a stop 40 against which the leading edges 32 of the products 28 abut during the picking process.
  • the stop 40 can be moved to adapt to different product lengths by means of a drive not shown here between two end positions 42, 44.
  • the aim is that the trailing edge 30 of a product in the feed direction F is always located at a defined position with respect to the movement path U so that it can be engaged by a blade element 18.
  • the support surface 34 is formed in addition to the conveyor belt 37 by a support conveyor belt 102. This is, for example, in several parts and arranged laterally from the conveyor belt 37.
  • a support conveyor 56 in the immediate vicinity of the transport wheel 10.
  • this has a conveyor belt 57 which acts as a pressure belt and which is parallel over approximately a quarter turn of the transport wheel 10 to the movement path U, with the same web speed as the products 28 is moved and this therefore stabilized until delivery to the removal device 38.
  • the products 28 are held between the free end of the carrier units 16 and the conveyor belt 57.
  • separating element 14 which has arrived at the lowest point of its trajectory U (fat illustrated blade element 18). It is about to reach under a product 28 (blackened drawn).
  • the blade element 18 is in a position in which its first leg 18a points in a direction opposite to its current direction of movement, ie, the first leg 18a is pivoted away from the carrier unit 16 counter to the feed direction and oriented substantially horizontally. Due to its convex in the direction of movement, here arcuate curved shape its front edge 18c is oriented at an angle of about 45 ° to the substantially horizontal surface of the products 28.
  • the front edge 18 c is located approximately at the same level 100 as the highest points of the scale formation S, which are formed by the trailing edges 30.
  • the front edge 18c of the blade member 18 in the feed direction F is still removed from the undercut edge 30.
  • the leading Edge 32 of the same product 28 has not yet arrived at the stop 40.
  • the gripper 12 which is functionally assigned to the separating element 14 in the receiving region 66, is located in the direction of movement behind the separating element 14.
  • the distance of the carrier units 16, 20, the position of the trailing gripper jaw 24 and the length of the first leg 18a are, however, chosen such that that the second leg 18b in the side view shown here, ie transverse to the conveying direction F and to the direction of movement of the gripper 12 and separating elements 14, at least partially aligned with each other or the second leg 18b in the feed direction F is just before the trailing gripper jaw 24, but behind the leading gripper jaw 22.
  • the spanned by the second leg 18b support surface is -in side view - so partially in the gripper mouth. This relative position is maintained until the gripper 12 is closed.
  • Figs. 2 and 3 indicate the further course of the recording of a product.
  • the transport wheel 10 has rotated by about 10 - 20 ° on.
  • the blade element 18 was pivoted counterclockwise relative to its carrier unit 16 by about 10 to 30 °.
  • the front edge 18c of the blade element moves downwardly relative to the male product 28 and forward in the feed direction F. By this movement, it pierces under the trailing edge 30 of the male product 28. Since the feed device 36 has also continued to run, the product 28 has meanwhile arrived at the stop 40 with its front edge 32.
  • the conveyor belt 37 and thus the support surface 34 is bent slightly downwards in the region of the stop 40 by means of suitable deflection rollers, so that the products 28 also run securely against the stop 40, supported by gravity.
  • the stop 40 prevents slippage of the leading edge 32 when the product is raised during further rotation of the transport wheel 10 from the blade element 18 and at the same time directs the product in question.
  • FIG. 2 This situation is shown in FIG.
  • the transport wheel has rotated with respect to Fig. 2 by another 10 - 20 °.
  • the position of the blade element 18 relative to its carrier unit 16 was also changed by rotation - now after a reversal of the direction of rotation in a clockwise direction - by a further 10 - 20 °.
  • the orientation of the blade element 18 in the room apart from a shift in the feed direction F and upward relative to FIG. 2 is substantially unchanged. Since the leading edge 32 is fixed to the stop 40, the male product 28 slips into the V-shaped blade element 18.
  • the blade element 18 is pivoted clockwise and the second leg 18b removed from the product 28, here by moving in the direction of the axis of rotation 11 under the taken product 28 (see Fig. 1, separating elements 14 at “2 o'clock” and “3 o'clock”).
  • the first leg 18a initially runs parallel to the carrier unit 16 (FIG. 2 separating element at "4 o'clock”).
  • it is pivoted in the direction of movement in front of the carrier unit 16 and, in the dispensing area 68, even encloses an angle of up to 90 ° with the latter (FIG. 1 separating element at "12 o'clock”).
  • the first leg 18a reaches the region of a leading gripper 12. This can be seen in Fig. 1-3, when the two arrived at the highest point of the movement path U separating elements 14 are considered. Before and during the transfer to the removal device 38, the blade element 18 is therefore assigned to the preceding gripper 12.
  • the first leg 18a serves as a guide element, which deflects the initially gripped, then released edge 30 of a product from the gripper 12 and in the direction of the conveyor belt of the removal device 38.
  • two laterally from the conveyor belt 37 of the conveying device 38 and the transport wheel 10 arranged support bracket 39 are present, which fulfill the same function.
  • the products 28 are therefore guided and opened after opening the gripper 12.
  • the already deposited products 28 are supported by the free ends of the gripper jaws 22, 24 and kept at a distance from the removal conveyor 38, so that a newly deposited product 28 can be introduced under an already stored.
  • the products are absorbed in the receiving area 66, while about half a turn of the Transport wheel 10 held by the grippers 12 and passed in the discharge area 68 opening the gripper 12 to the removal device 38. Since the gripped by the gripper 12 edge 30, ie the original trailing edge of the product 28 is gebacht in the delivery area 68 under an already released leading product, creates a scaly formation S ', in relation to the original formation S, the leading and trailing edges 30th , 32 and the positions up / down are reversed.
  • the mechanism for pivoting the blade element 18 comprises two deflection rollers 50, 52, one of which is arranged on the carrier unit 16 on the transporting wheel side and is non-rotatably connected to a guide roller 46.
  • the other deflection roller 52 is located at the radially outer end of the carrier unit 16 and is rotatable about the axis 26 and rotatably connected to the blade element 18.
  • the two pulleys 50, 52 are coupled together by a belt 48.
  • a non-co-rotating guide slot 54 with two parallel guide surfaces 54a, 54b limits the movement of the guide roller 46 in the radial direction and thus forces them depending on the position of the transport wheel 10 in a certain position relative to the support unit 16.
  • first position of the guide roller 46 and the guide slot 54 indicated by solid lines and a second position dash-dotted lines. These positions correspond to the positions of the blade element 18 in solid or dash-dotted lines.
  • the guide roller 46 is pivoted relative to the carrier unit 16 and the deflection roller 50th rotated, which is translated into a rotational movement of the guide roller 52 and thus of the blade element 18.
  • the blade element 18 consists in profile of a straight first leg 18a and a circular arc-shaped second leg 18b. In the direction of movement, the blade element 18 may have a continuous or perforated surface with the profile shown in Fig. 4. Furthermore, a plurality of blade elements 18 can be arranged transversely to the direction of movement next to one another and moved synchronously, for example on the right and left sides of the gripper.
  • FIG. 5 shows an enlarged representation of the receiving region 66 of a device according to the invention in the simultaneous recording of two products 28a, 28b.
  • the structure of the transport wheel 10 and the gripper 12 or separating elements 14 has already been described with reference to FIGS. 1-4.
  • Fig. 5 indicates, in addition to already recognizable in Fig. 1-3 first guide roller 58 for controlling the position of the gripper 12 relative to the movement path U and the corresponding first guide slot 62 in solid lines.
  • dashed lines indicate the respective second guide rollers 60 of the grippers 12 and their corresponding guide link 64.
  • the first guide rollers 58 together with the first guide link 62 affect the position of the trailing gripper jaw 24 relative to the path of movement U.
  • the second guide rollers 60 in conjunction with the second guide link 64 influences the position of the leading gripper jaw 22 (see also FIGS EP-A 1 055 620 ).
  • the gripper jaws 22, 24 are biased in the closed position, ie without influence of second guide slot 64, the gripper 12 is closed, and the first guide slot 62 affects the position of the entire gripper 12 relative to the orbit U.
  • the guide slot 54 for the separating elements 14 is not shown for reasons of clarity.
  • the products 28 are each fed in pairs in a double scale formation S "'.
  • two products 28 of a pair are shown slightly offset in order to illustrate that also errors in the supplied formation can be corrected within certain limits.
  • the separating elements 14 are moved so that the front edge 18c of the blade elements 18 engages in each case under the underlying second product 28 of a product pair and lifts it together with the product 28 lying thereon out of the scale formation S " be compensated.
  • the pairing can also take place only in the receiving area 66 by interaction with the stop 40.
  • the transport wheel 10 is moved approximately at half the Zuure Malawi, so that in each case two individually procured products 28 come on a gripper 12.
  • FIG. 6 shows the drive system of a device according to the invention. Furthermore, FIG. 6 shows an advantageous variant of the invention, in which the transport wheel is displaceable in and against the feed direction F, in order to prevent irregularities, for example a gap 84, in one to compensate for scaffold formation S conveyed or to form a gap in the expiring scale formation S '.
  • gap formation means the transfer of products 28 into the grippers 12 in such a way that at least one gripper 12 remains deliberately empty. Compensation of irregularities is understood to mean the process which prevents one or more grippers 12 from remaining empty despite an irregularity.
  • the drive system in the basic version of the invention will first be described below.
  • This includes a first drive 74, e.g. a motor, for the transport wheel 10.
  • the driving force is transmitted to the transport wheel 10 by means of a first toothed belt 72 and a gear 70 which is concentric with the transport wheel 10 and thus rigidly connected.
  • the toothed belt 72 runs over a plurality of deflection rollers 73, 73 '. From the toothed belt 72 and the support conveyor 56 and the Weghold Rhein 38 are driven (the latter not shown).
  • the drive 74 Via a mechanical or electronic connection 76, the drive 74 also drives or controls the feed device 36. For example, there is a transmission between the drive 74 and the feed device 36, which ensures a defined, optionally adjustable transmission ratio.
  • the transport wheel 10 is displaceable in and counter to the feed direction F. It is presently arranged on a carriage 78, which along a horizontally extending rail 86 between two through Stops 88, 90 defined end positions is displaced.
  • the following elements are mounted on the carriage 78: transport wheel 10 with the carrier units 16, 20 for the separating elements 14 and the grippers 12; Stop 40, wherein its position is adjustable within the area defined by the end positions 42, 44 relative to the carriage; Support conveyor 56; Roller 39 at the beginning of the removal device 38; Pulleys 73 'for the toothed belt 72; Support conveyor 102.
  • a further drive 80 is present.
  • the driving force is transmitted by means of a second toothed belt 81.
  • This toothed belt 81 is rigidly connected to the carriage 78 by a coupling element 82 and extends in the feed direction F in the region of the carriage 78.
  • the drive 80 is able to move the entire carriage 78 and the components coupled therewith very quickly into or counter to the feed direction F. move.
  • the speed is preferably higher by a multiple than the feed speed, so that a virtually instantaneous change in position of the carriage 78 can be assumed. Since the gear wheel 70 rolls when moving the carriage 78 on the toothed belt 72, the transport wheel when moving in the feed direction F with increased and when moving in the opposite direction with reduced (even stationary) speed is driven.
  • Fig. 6 shows the carriage and the components associated therewith in two different positions.
  • the rear in the feed direction F position is in solid Lines shown.
  • a position in front of the feed direction F is shown in phantom.
  • a detection device 92 is able to detect irregularities in the incoming formation S and report them to a control device 104, which in turn controls the drives 74, 80.
  • the detection device 92 comprises, for example, a light barrier in conjunction with a further optical sensor.
  • the light barrier serves to identify the leading edge 32 of a product 28 after a true gap in the product flow.
  • the further sensor serves to identify the trailing edges 30 of the products 28.
  • FIGS. 7 and 8 show an advantageous development of the device according to FIG. 6 in two different positions when closing a gap 84 in the incoming imbricated formation S.
  • FIGS. 7 and 8 show an advantageous development of the device according to FIG. 6 in two different positions when closing a gap 84 in the incoming imbricated formation S.
  • the transport wheel 10 is displaceable together with the stop 40 in or counter to the feed direction F.
  • the support conveyor belt 102 is moved to maintain a defined distance of the support 34 to the orbit U.
  • the conveyor belt 37 of the feed device 36 is stationary (see also Fig. 6).
  • the guide slot 54 for the guide rollers 46 of the separating elements 14 is pivotable about the axis of rotation 11 of the transport wheel 10 in the present case.
  • an e.g. hydraulically or pneumatically operated drive device 94 is provided for carrying out the pivoting movement. It moves a piston rod 96 which is pivotally mounted on the guide slot 54 itself or on a lever arm 98 rigidly connected thereto. By moving the piston rod 96 by a certain amount, the guide slot 54 is rotated by an angle ⁇ . Without operating the drive device 94, the orientation of the guide slot 54 does not change in space.
  • a gap 84 in the incoming scale formation S is compensated as follows:
  • the optical detection device 92 shown in FIG. 6 notifies the control device 104 that the distance between two trailing edges 30 deviates from the desired distance D in the incoming scale formation S. In the present case, the measured distance is approximately twice the desired distance D.
  • FIG. 7 shows the state in which the product 28 leading the gap 84 has already been gripped by a blade element 18 and lifted off the underlying product.
  • the position of the blade elements 18 in the transfer area 66 corresponds to a situation which is shortly before the situation shown in FIG. 3.
  • the blade element 18 of the next separating element 14 is located in the feed direction F in front of the edge 30 to be gripped of the next product 28 (FIG. 7).
  • the transport wheel 10 and the stop 40 together with the support conveyor belt 102 are moved by the carriage 78 (FIG. 6) counter to the feed direction F by an amount d postponed. This situation is shown in FIG.
  • the amount d is slightly smaller than the desired scale distance D and was chosen so that the distance between the trailing edges 30 of the already taken product and the subsequent product substantially equal to the scale distance D.
  • the stop 40 Since the stop 40 is moved relative to the stationary conveyor belt 37 of the feed device 36, the product already abutting it, in particular the product already under attack by the blade element 18, are displaced relative to the products not yet abutting, so that the gap 84 is closed.
  • the displacement d is a little less than the scale distance D.
  • the leading edge 18c of the separating element 14, which follows the separating element which has already engaged a product 28, is only slightly above the level 100 of the highest points the incoming scale formation S.
  • the leading edge 18c has almost the same height as the trailing edges 30 of the products 28.
  • the guide cam 54 is shaped to lower the leading edge 18c further below the level 100 due to the pivotal movement of the vane element about the axis 28 as the transport wheel 10 continues to rotate .
  • the problem arises that the front edge 18c of the blade element 18 would come into contact with the product 28 to be gripped on its exposed product surface.
  • the product may be damaged when the transport wheel 10 is displaced, the displacement movement may be blocked, or the pivoting mechanism for the blade elements 18 may be damaged.
  • the pivoting of the guide slot 54 shown in FIGS. 7 and 8 primarily serves to lower the front edge of the blade element 18, even in the case of irregularities 84 in the incoming scale formation S, behind the product edge 30 to be undercut and to avoid contact with the product surface. If the second legs 18b of the blade elements 18 are elastic at least in a direction away from the product and therefore can not injure the product even when touched, the pivotable guide slot 54 can also be dispensed with. Such elasticity, which at the same time allows sufficient stability when gripping a product, can be achieved by a blade element 18 constructed of lamellae transverse to the feed direction F, which is flexible in the direction of the pivot axis 26 and rigid in the opposite direction.
  • the carriage 78 is moved in the feed direction F. In order to grasp a gripper 12 in the receiving area 66 into the void, which leads to the gap to be formed in the expiring formation S '. The carriage 78 is then back in the Pushed home position. An adjustment of the control link 54 is not necessary in this case.
  • the displacement mechanism shown in Fig. 6 and the adjustable control link shown in Figs. 7 and 8 can also be used in devices which work with conventional separating elements, in particular in a device according to EP-A 1 055 620 ,
EP07002239A 2006-03-17 2007-02-02 Dispositif pour ramasser et convoyer des produits plats Withdrawn EP1834913A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4152006 2006-03-17

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US (1) US20070216082A1 (fr)
EP (1) EP1834913A1 (fr)
AU (1) AU2007200640A1 (fr)
CA (1) CA2577379A1 (fr)

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WO2012034242A1 (fr) * 2010-09-17 2012-03-22 Ferag Ag Dispositif pour le transfert de produits à un transporteur à griffes

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DE102006045087A1 (de) * 2006-09-21 2008-03-27 Focke & Co.(Gmbh & Co. Kg) Verfahren und Vorrichtung zum Handhaben von Windeln
EP2100839B1 (fr) * 2008-03-14 2012-12-19 Müller Martini Holding AG Dispositif de transport pour le prèlévement et la transmission de produits imprimés
DE102008048287A1 (de) * 2008-09-22 2010-03-25 Heidelberger Druckmaschinen Ag Vorrichtung und Verfahren zum Falzen von Bogen
DE102010043063B4 (de) * 2010-10-28 2012-11-08 Böwe Systec Gmbh Vorrichtung und Verfahren zum Puffern einer Mehrzahl von Gütern oder Gutgruppen und Papierhandhabungsanlage mit derselben
DE102011105887A1 (de) * 2011-06-27 2012-12-27 Focke & Co. (Gmbh & Co. Kg) Vorrichtung und Verfahren zum Gruppieren von Gegenständen

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DE2922450A1 (de) * 1978-06-30 1980-01-10 Ferag Ag Vorrichtung zum wegfoerdern von in einem schuppenstrom anfallenden flaechigen erzeugnissen, insbesondere druckprodukten
EP0551601A1 (fr) * 1992-01-09 1993-07-21 Ferag AG Dispositif et procédé pour l'alimentation spécialement de produits imprimés pliés vers un autre poste de travail
EP0613847A1 (fr) * 1993-03-01 1994-09-07 Gunze Limited Procédé et appareil de prélèvement d'échantillons de produits plats entraînés par un convoyeur
EP0863099A1 (fr) * 1997-03-04 1998-09-09 Ferag AG Dispositif pour séparer des produits imprimés empilés

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CH703816A1 (de) * 2010-09-17 2012-03-30 Ferag Ag Vorrichtung zur übergabe von produkten an einen greiferförderer.

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AU2007200640A1 (en) 2007-10-04
CA2577379A1 (fr) 2007-09-17

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