EP0151972B1 - Verfahren und Vorrichtung zur Auslage bogenförmiger Produkte in Form eines Schuppenstromes - Google Patents

Verfahren und Vorrichtung zur Auslage bogenförmiger Produkte in Form eines Schuppenstromes Download PDF

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Publication number
EP0151972B1
EP0151972B1 EP85100636A EP85100636A EP0151972B1 EP 0151972 B1 EP0151972 B1 EP 0151972B1 EP 85100636 A EP85100636 A EP 85100636A EP 85100636 A EP85100636 A EP 85100636A EP 0151972 B1 EP0151972 B1 EP 0151972B1
Authority
EP
European Patent Office
Prior art keywords
speed
drum
grippers
products
delivery belt
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
EP85100636A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0151972A2 (de
EP0151972A3 (en
Inventor
Emil Fischer
Rudolf Stäb
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.)
Albert Frankenthal AG
Original Assignee
Albert Frankenthal 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 Albert Frankenthal AG filed Critical Albert Frankenthal AG
Publication of EP0151972A2 publication Critical patent/EP0151972A2/de
Publication of EP0151972A3 publication Critical patent/EP0151972A3/de
Application granted granted Critical
Publication of EP0151972B1 publication Critical patent/EP0151972B1/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
    • 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
    • B65H29/02—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
    • 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
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/56—Flexible surface
    • B65H2404/561—Bristles, brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/50—Gripping means
    • B65H2405/53—Rotary gripping arms
    • B65H2405/531—Rotary gripping arms with relative movement of the arms relatively to the axis of rotation during rotation

Definitions

  • the invention relates to a method for displaying sheet-shaped products, in which the products which are initially transported without overlap are delayed and transported in the form of a shingled stream, and according to a further idea of the invention relates to a device for carrying out this method by means of an associated feed member Products can be acted upon by a flaking unit which interacts with a delivery belt running at a speed which is lower than the speed of the feed element.
  • the products processed in the folder are fed by means of a belt guide to a star-shaped bucket wheel provided with buckets, braked in the chambers delimited by the buckets and after rotation of the bucket wheel by about 90 ° on the delivery belt.
  • the disadvantage here is that the products fed to the paddle wheel hit the blades or the paddle wheel base very hard due to their kinetic energy, and can thereby lubricate or be compressed and damaged.
  • Another major disadvantage is that it is not possible to bring the products clearly to the bottom of the paddle wheel.
  • the products processed in the folder are delayed and laid out by means of several cylinders.
  • the folded products are transferred from cylinder to cylinder by means of grippers which are arranged in a stationary manner on the interacting cylinders, and are jerkily slowed down during the transfer.
  • grippers which are arranged in a stationary manner on the interacting cylinders, and are jerkily slowed down during the transfer.
  • this is only possible until the space created by the folding process between the successive products has been used up.
  • the product flow must be split. It is not possible to shed the cylinders one above the other because the grippers, which are stationary on them, must be accessible for transfer. Since the products have to be directed alternately into different streams, there is a not inconsiderable effort.
  • each stream has an acceptance or Processing station must be assigned.
  • the known slow-down delivery also results in high stress on the products due to the repeated transfer and jerky deceleration of the products and therefore a high risk of damage.
  • the stated object is achieved according to the invention in that the flaking unit adjoins a support device which adjoins the transport plane of the feed member and bridges a distance that extends the arc length between the feed member and the delivery belt, and a plurality of supporting devices which rotate between the feed member and delivery belt, the successive ones in the area between the feed member and the delivery belt on the support device has products from the feed element which take over and lay down on the delivery belt and which by means of an acceleration gear on a web section extending in the direction of movement from the feed unit to the delivery belt can be decelerated from approximately the feed organ speed to approximately the delivery belt speed and in reverse on the subsequent web section Way can be accelerated.
  • the grippers accomplish a forced transport and an exact fixation of the products on the way from the feed element to the delivery belt and enable the products to be released at a precisely defined point in time, so that there is an exact, uniform alignment of the products on the delivery belt. Inclinations, lateral misalignment and uneven scale spacing etc. are advantageously not to be feared here, which means further processing of the products, e.g. B. by means of a package boom.
  • the grippers are initially decelerated in the course of each revolution and then accelerated again, which can be achieved in a simple manner by means of acceleration gear known per se, such as a cam drive, crank mechanism, etc.
  • acceleration gear known per se, such as a cam drive, crank mechanism, etc.
  • the desired shingling results despite the inclusion of the products by the gripper, so that all products are designed in the form of a single stream of shingles, which facilitates further processing in that only one delivery or further processing station is to be provided.
  • the gradual deceleration of the products to be braked, brought about by the gradual deceleration or acceleration of the grippers advantageously results in very gentle handling of the products and therefore enables high hourly outputs.
  • the support member is designed as a cylindrical drum that rotates at a fixed speed, preferably cylindrical, and that the gripper rows that can be decelerated or accelerated by means of the acceleration gear have a number of tours corresponding to the number of revolutions of the drum and are movably supported relative to the drum jacket are.
  • the drum can expediently be designed such that its surface speed corresponds to the arithmetic mean between the transport speed of the feed element and the transport speed of the delivery belt.
  • the drum provided here at the same time results in a curved support surface which defines a curved course of the grippers, thereby ensuring that the rear ends of the products gripped by the grippers in the region of their front ends are pushed radially outward as a result of the lending force, which facilitates the shingling process.
  • the acceleration gear can be designed in such a way that the lowest speed of the gripper rows is slightly larger than the transport speed of the delivery belt. This results in an extended placement of the products on the delivery belt.
  • the gripper rows can be driven so that their greatest speed is somewhat less than the transport speed of the feed member. This results in an automatic feed of the products into the grippers, which enables product notification in the area of the grippers.
  • the grippers of successive rows of grippers are laterally offset from one another and accommodated in slots of the drum shell that are laterally offset from one another. This advantageously results in webs remaining between the slots and thus a coherent drum shell, which allows the drum to be easily mounted laterally.
  • a further advantageous measure can consist in that the gripper rows are accommodated on two lateral, rotatably mounted rockers, which are operatively connected to the acceleration gear.
  • the drum which has a cylindrical jacket, can be penetrated by a coaxially arranged shaft on which the rockers receiving the individual gripper rows are rotatably mounted in the circumferential direction, the rockers respectively assigned to the opposite ends of the gripper rows being arranged next to one another.
  • This measure results in a very compact design and simple kinematics.
  • the rockers can be in rotationally engaging engagement with a driver rotating at a uniform speed about an axis eccentric to its pivot axis, the number of revolutions of which is the desired number of revolutions of the gripper rows, in the case of using a rotating drum as a supporting element of the number of revolutions of the drum , corresponds.
  • These measures result in a crank mechanism and thus a particularly simple design of the acceleration gear.
  • the speed that can be achieved in this way advantageously has a sinusoidal course, the reversal points surrounding broad areas resulting in approximately constant speed. This ensures that the products fed to the grippers are still transported away relatively quickly after they have been taken over, so that the subsequent sheet in each case can be gripped without interference.
  • the drivers assigned to all the rockers can be fastened to a turntable, which is mounted eccentrically with respect to the shaft receiving the rockers and is penetrated by the shaft and can be driven with the desired number of revolutions. This results in a particularly simple and compact design of an acceleration gear assigned to all the rockers.
  • Another particularly preferred measure can consist in that in the area of the delay line of the gripper rows a radial Outside of the support surface of the support device, parallel to it, flexible in the radial direction, preferably designed as a brush with bristles pointing to the support device, is provided.
  • the brush which is preferably used, ensures a particularly small-area contact with the products being guided past it, which has a positive effect on the prevention of smearing.
  • the drum and thus the movement path of the grippers can unwind on the feed element and the delivery belt.
  • the feed element can be designed as a preferably multi-part belt guide which has a deflection in the area in front of the drum. This ensures that the delivery belt can be offset by approximately 180 ° on the circumference of the drum relative to the belt guide forming the feed element, so that there is a large delay line.
  • the multi-part design of the belt guide enables the products to be braked to reduce the gap between the individual products due to the folding process.
  • the products processed in a folder arranged downstream of a rotary printing press are fed to a flaking unit 2 by means of a belt guide 1 in order to achieve a single-flow delivery, and are placed by the latter in the form of a flake stream onto a delivery belt 3 running at a reduced speed compared to the belt guide.
  • the structure and mode of operation of a folder are known per se and therefore require no further explanation in the present context. In the drawing, therefore, only the end of the band guide 1 coming from the jaw cylinder is assigned to the shingling unit 2.
  • the dandruff unit 2 on which the drawings are based consists of a drum 4 rotating at a fixed rotational speed, which here has a cylindrical casing 5, and a plurality of gripper rows 7, which are accommodated on the side on rockers 6 arranged with axes coaxial with the drum axis and with associated slots 8 of the drum casing 5 protruding grippers 9.
  • the belt guide 1 and the delivery belt 3 touch the drum 4 with an approximately 180 ° offset.
  • the tape guide 1 consists, in a manner known per se, of two sets of tapes which accommodate the products.
  • the upper set of belts is passed over drum 4.
  • the lower set of tapes ends in front of the drum.
  • In the resulting gusset guide tongues 10 can be provided with a support surface parallel to the transport plane of the belt guide.
  • the delivery belt 3 has only one set of belts, which here engages under the lower region of the drum 4.
  • the grippers 9 of the shingling unit 2 are controlled in such a way that they grasp the products fed to the drum 4 by means of the band guide 1 when they leave the band guide 1 forming a feed element assigned to the drum 4, pass around half the drum circumference and on the 180 ° relative to the band guide 1 Place offset delivery tape 3.
  • the drives 6, each receiving a row of grippers 7, are operated with the number of revolutions of the drum 4.
  • the flights 6 are accelerated and decelerated in the course of each revolution in such a way that when the products 11 are taken over, they approximate the transport speed of the belt guide 1 have a corresponding speed and, when the products 11 are placed on the delivery belt 3, have a speed approximately corresponding to the transport speed of the delivery belt 3.
  • the speed of the delivery belt 3 corresponds to approximately one third of the speed of the belt guide 1. Because of this speed difference, the grippers 9, which hold the respectively assigned product 11 in the area of its folded edge, run in under the rear end of the respectively preceding product 11. The products 11 are therefore placed on the delivery belt 3 in the form of a shingled stream 12, in spite of their being picked up by the grippers 9, which enables a single-flow delivery and a precise positioning of the individual products. In the manufacture of folded products, the folding process creates gaps between the individual products. These gaps can be reduced so far in the area of the belt guide 1 that only a small free space remains, which enables the grippers 9 to be immersed. For this purpose, the belt guide 1 can simply have a plurality of sections driven at a graduated speed.
  • the rockers 6 can be driven in such a way that the greatest speed of the grippers 9 received on the rockers 6 when the products 11 are taken over corresponds to the transprot speed of the tape guide 1 and thus to the speed of the products 11 to be picked up.
  • the rockers 6 are driven so that the maximum speed of the gripper 9 slightly below the transport speed of the belt guide 1, so that the products 11 to be taken in reliably run into the opened gripper 9 and are thereby subjected to an alignment process.
  • the grippers 9 of each gripper row 7 can be provided with aligned leading edges in order to achieve a clean alignment.
  • the lowest speed of the grippers 9 accommodated on the rockers 6 when the products are discharged and deposited on the delivery belt 3 can correspond to the transport speed of the delivery belt 3.
  • the minimum gripper speed should slightly exceed the transport speed of the delivery belt 3, so that there is an extension of the products.
  • the diameter of the arms 6 running at the same number of turns, a support device for the drum 4 forming products 11 guided by the grippers 9 is so dimensioned that the surface speed of the drum 4 the arithmetic mean. between the highest and lowest gripper speeds, d. H. corresponds approximately to the arithmetic mean between the speed of the belt guide 1 and the delivery belt 3.
  • the relative movements of the grippers 9 with respect to the drum casing 5 can be reduced to a minimum during the deceleration and acceleration phase.
  • the slots 8 of the drum shell 5 assigned to the grippers 9 are therefore comparatively short.
  • the grippers 9 of successive rows of grippers 7 are laterally offset from one another at a distance, so that webs 13 and thus a coherent drum casing 5 result between the slots 8.
  • the grippers 9 run here in a circular orbit.
  • the products 11 guided by the grippers 9 are therefore pushed radially outward due to the centrifugal forces acting on them, so that the grippers 9 of the following row of grippers 7 can easily enter under the rear end of the product 11 gripped by the grippers 9 of the preceding row of grippers 7 .
  • the grippers 9 can be provided with wedge-shaped deflecting cams 14, as is indicated in FIG. 1 only with the aid of a gripper for the sake of clarity. As experiments have shown, this is not necessary with a curved gripper movement path.
  • the circumferential section of the drum 4 corresponding to the delay line between the belt guide 1 and the delivery belt 3 is surrounded by a brush 15 which extends radially inwards protruding bristles.
  • the brush 15 can be designed as a stationary brush without the risk of smearing.
  • rocker arms 6, each receiving a row of grippers 7, are rotatably supported, as can best be seen from FIG. 2, on a shaft 17 which is mounted in the side walls 16 of the folding apparatus and is coaxial with the axis of the drum 4.
  • the rocker arms 6 each assigned to the opposite ends of the gripper rows 7 are arranged side by side, so that there is mutual support in the axial direction and only two rings are sufficient to fix all rockers on one side.
  • the rocker arms 6, which belong together in pairs, are each connected to a swivel frame by means of an associated cross member 6a.
  • the swivel frames assigned to the individual gripper rows 7 are driven here by means of a crank mechanism with an axis of rotation b eccentric to the axis a of the shaft 17 and the drum 4.
  • a rocker 6 of each pair of rockers is provided with a guide groove 18 running in the radial direction, into which an associated driver 19 engages.
  • the rocker arms 6 provided with a guide groove 18 are arranged next to one another, so that all the drivers 19 can be designed simply as axial projections of a rocker ring 20 adjacent to these rocker arms 6 and penetrated by the shaft 7 and rotatable with respect to the eccentric axis b.
  • the turntable 20 and the drum 4 are driven at the same speed, so that the same number of revolutions of the drum and the gripper 9 received by the rocker 6 result.
  • the acceleration and deceleration of the grippers 9 with respect to the drum 4 running at the same number of revolutions results from the distance between the axes a and b.
  • the drum 4 and the turntable 20 are driven from the central shaft 17, which is connected via a gear train 21 to a single-speed shaft of the folder.
  • the shaft 17 is provided with stimulation wheels 22a, 22b which are placed on its ends which are guided through the side walls 16, one of which meshes with the gear train 21.
  • the turntable 20 is provided with a ring gear 23 adjacent to the associated side wall 16.
  • the drum 4 has one of the opposite side wall 16 adjacent beard ring gear 24.
  • the ring gears 23 and 24 mesh with a respectively assigned gear 25 or 26, which is connected via a countershaft 27 passing through the respectively assigned side wall 16 to a gear 28 or 29 arranged outside the relevant side wall 16, which with meshes with the respective adjacent spur gear 22a or 22b of the shaft 17.
  • the reductions or reductions produced by the gear pairings leading to the ring gears 23 or 24 are the same. If the shaft 17 is already driven with the desired number of gripper or drum revolutions, the pitch circle diameters of the ring gears 23, 24 and the gears 25, 26 interacting therewith, as well as the spur gears 22a, 22b and the gears 28, 29 cooperating therewith are each to be designed in such a way that that there is a total gear ratio assigned to each ring gear 23 or 24 with the gear ratio 1.
  • the slewing ring 20 is rotatably supported on an inwardly projecting pipe socket 30, which is penetrated by the central shaft 17 and is fastened to the associated side wall 16.
  • the drum 4 is on the one hand on a bearing housing 31 comprising the rotating ring 20 and the gear 25 cooperating therewith, which projects inwardly projecting on the associated side wall 16 and on the other hand on a shaft 17 which is fastened to the opposite side wall 16 and comprises the shaft 17, of which the drum-side ring gear 24 approach comprising bearing housing 32 rotatably mounted.
  • This bearing housing 32 is used here at the same time for receiving a control disk 33 arranged stationary within the drum shell 5 for controlling the grippers 9.
  • the bearing housing 32 therefore jumps. over the associated end wall of the drum 4 in front of the drum.
  • the movable flaps of the grippers 9 of each gripper row 7 are each received on a continuous gripper rod 34 which is rotatably mounted on the associated rockers 6 and which can be pivoted by means of a pivoted lever 35 attached to it and scanning the stationary control disc 33 for opening and closing the grippers 9.
  • the stationary jaws of the grippers 9 are accommodated on the crossbeams 6a of the swivel frame, the internal arrangement of the stationary control disk 33 enables a relatively small diameter of the ring gear 24 on the drum side.
  • the transport plane of the belt guide 1 runs practically tangentially into the support surface of the drum jacket 5, which acts as a support member.
  • the running direction of the shingling unit 2 is selected so that the drum 4 and the path of movement of the grippers 9 unwind on the belt guide 1 and the delivery belt 3.
  • Movements of the belt guide 1, the drum 4 together with the gripper 9 and the delivery belt 3 are thus present in the transfer areas, as indicated by the arrows 36a, 36b, 36c.
  • the web guide 1 is provided with a deflection 37 in front of the flaking unit 2 in the transport direction, as can further be seen in FIG.
  • the deflection of the products which is accomplished in this case is reversed by the further deflection of the products taking place in the area of the drum 4, so that overall there is a transport path leading out of the folding unit containing the shingling unit 2.
  • the support device for supporting the products 11 is designed as a rotating drum 4, with which relative movements can largely be avoided.
  • a table to form the support device simply by means of strips arranged in a stationary manner between the grippers 9 and bent according to the course of the gripper path in the region of the delay line.
  • a more elongated course could also be provided, in which case a deflection of the path guide could then be omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
EP85100636A 1984-02-08 1985-01-23 Verfahren und Vorrichtung zur Auslage bogenförmiger Produkte in Form eines Schuppenstromes Expired - Lifetime EP0151972B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843404459 DE3404459A1 (de) 1984-02-08 1984-02-08 Verfahren und vorrichtung zur auslage bogenfoermiger produkte in form eines schuppenstromes
DE3404459 1984-02-08

Publications (3)

Publication Number Publication Date
EP0151972A2 EP0151972A2 (de) 1985-08-21
EP0151972A3 EP0151972A3 (en) 1987-08-12
EP0151972B1 true EP0151972B1 (de) 1990-01-03

Family

ID=6227142

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100636A Expired - Lifetime EP0151972B1 (de) 1984-02-08 1985-01-23 Verfahren und Vorrichtung zur Auslage bogenförmiger Produkte in Form eines Schuppenstromes

Country Status (4)

Country Link
US (1) US4629175A (enrdf_load_stackoverflow)
EP (1) EP0151972B1 (enrdf_load_stackoverflow)
JP (1) JPH06104528B2 (enrdf_load_stackoverflow)
DE (2) DE3404459A1 (enrdf_load_stackoverflow)

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DE3404459A1 (de) 1985-08-14
EP0151972A2 (de) 1985-08-21
EP0151972A3 (en) 1987-08-12
JPS60204568A (ja) 1985-10-16
DE3575119D1 (de) 1990-02-08
US4629175A (en) 1986-12-16
DE3404459C2 (enrdf_load_stackoverflow) 1987-10-29
JPH06104528B2 (ja) 1994-12-21

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