EP0427714B1 - Automatic loading apparatus for rolls of paper and other material - Google Patents

Automatic loading apparatus for rolls of paper and other material Download PDF

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Publication number
EP0427714B1
EP0427714B1 EP19880903921 EP88903921A EP0427714B1 EP 0427714 B1 EP0427714 B1 EP 0427714B1 EP 19880903921 EP19880903921 EP 19880903921 EP 88903921 A EP88903921 A EP 88903921A EP 0427714 B1 EP0427714 B1 EP 0427714B1
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EP
European Patent Office
Prior art keywords
roll
carriage
translating
mandrels
core
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
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EP19880903921
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German (de)
French (fr)
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EP0427714A1 (en
Inventor
Franco Minoli
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CAMS Srl
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CAMS Srl
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Filing date
Publication date
Priority to IT1971988A priority Critical patent/IT1216045B/en
Priority to IT1971988 priority
Application filed by CAMS Srl filed Critical CAMS Srl
Publication of EP0427714A1 publication Critical patent/EP0427714A1/en
Application granted granted Critical
Publication of EP0427714B1 publication Critical patent/EP0427714B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00Changing the web roll
    • B65H19/10Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12Lifting, transporting, or inserting the web roll; Removing empty core
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00Changing the web roll
    • B65H19/10Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12Lifting, transporting, or inserting the web roll; Removing empty core
    • B65H19/126Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/417Handling or changing web rolls
    • B65H2301/4171Handling web roll
    • B65H2301/4173Handling web roll by central portion, e.g. gripping central portion

Abstract

Loading apparatus for rolls wound with a strip of paper or other material for rotary printers, and for other kinds of machinery using rolls, comprising a station (A) where the roll (200) is taken on, a positioning station (B) at which the roll (200) is given its correct spatial position in relation to the mandrels of the roll-using machine (27) and a loading station (C) for mounting the roll (200) into said machine, said stations being connected by a translating means (81), a hoisting means (35) and a roll-bearing carriage (16), the correct spatial position of the roll (200) being given by controls from an electronic control panel to said parts (16), (35), (81) that transport said roll, and to a table (105) carrying the carriage (16), said table having devices for longitudinal and angular movement of the carriage (16) executed following signals received from the sensors mounted on detection devices (180) controlling the longitudinal, levelling and angular positioning of the roll (200) said devices being placed in the positioning station (B).

Description

  • Many machines have to be fed with rolls of paper and other material, such machines including rotary printers, impregnating systems for plastic laminates, packing machines and others.
  • Considering the speed at which these machines work, the necessarily frequent replacement of empty rolls with new ones becomes a decisive factor of production especially in view of the weight and dimensions of such rolls, making transport to the point of utilization difficult and sometimes problematic, one problem in particular being that of fitting them into position on the roll-supporting mandrels of the plant concerned.
    The new roll must in fact be:
    • centered longitudinally in relation to the ends of said mandrels;
    • given the right angular position so that the two ends of the core, round which the material is wound, fit straight onto the ends of the mandrels.

    To achieve this the following roll movements are necessary:
    • an axial movement to centre it in relation to the supporting mandrels,
    • a vertical movement to bring it to mandrel level,
    • an angular movement on a horizontal plane to make projection of its geometrical axis parallel to projection of the geometrical axis of the mandrels,
    • an angular movement on a vertical plane to make projection of its geometrical axis parallel to projection of the geometrical axis of the mandrels.

    In addition the tubular core of each roll must be discharged. All this involves numerous workers, much waste and, most of all, long periods of down time since such rolls are heavy and their positioning, in relation to the supporting mandrels, must be accurate; to change them, therefore, the plant must be stopped for quite a considerable time.
    As running costs of such plants, and consequent allowances for depreciation are high, and as continuous production is therefore an important aim, the time and labour required for putting in fresh rolls generally form an expensive item in the economy of a company.
    Apparatuses of various kinds have been suggested, and adopted, to facilitate the operations mentioned above.
    Such apparatuses are winches, elevators, carriages of different types, manually or motor driven, partially automatic, more or less effective according to their level of mechanisation.
    The apparatus subject of patent US-A-4 131 206 comprises a double carriage mechanism for roll changing.
    This double carriage mechanism includes a first carriage that moves along rails extending parallel to a shaft in the roll, and a second carriage made to move along rails extending below and perpendicular to said shaft in the roll.
    Said second carriage has a device for raising and lowering the first carriage carrying the roll.
    Another device discharges the core of the roll consumed in the plant.
    Further devices, operated by an electronic control panel and by a photoelectric conversion detector, place the fresh roll between the supporting mandrels on the plant, adjusting both the position of said roll in the direction of its geometrical axis and also its height to that of the supporting mandrels.
    This patent enables reductions to be made in the number of operators required and in the time needed to change the roll.
    Even so the time the plant remains idle is still considerable, most of it being taken up in adjusting the spatial position of the roll.
    Use of a three-shaft support is an expedient that complicates the plant and increases costs without solving the basic problem.
    Consequently, even if the apparatus described by patent US-A-4 131 206 is adopted, roll changing still remains an operation that represents a heavy charge on a company.
    Neither is any solution found for problems relating to possible disalignment between the geometrical axis of the roll and that of the mandrels, creating difficulties over fitting it onto said mandrels, a cause of irregularities of one kind and another and considerable waste.
    Preliminary adjustment of the roll's geometrical axis, on the other hand, is both problematic and complex because of the great weight and bulk of most of such rolls.
    With similar apparatuses at present in use practically the same problems arise.
    Since the invention subject of the present patent application makes it possible to bring the roll into its correct spatial position before fitting it onto the plant's roll supporting mandrels, and while said plant is working, said invention drastically reduces plant stoppages at the same time ensuring a high degree of roll positioning accuracy and appreciable reduction of waste, as will be explained.
  • Subject of the invention is an automatic loading apparatus for rolls of paper or of other materials, for use on rotary machines, in impregnating systems for plastic lamines, on packing machines and other plants using such rolls.
  • Said loading apparatus comprises:
    • a station from which fresh rolls are taken,
    • a station where the next roll for loading is given the correct position in relation to the supporting mandrels onto which it will be fitted,
    • a loading station where the roll is mounted onto said mandrels.

    At the positioning station all movements must be made for correctly centering the roll's geometrical axis in relation to the mandrels on the plant, for bringing the roll's geometrical axis to the same level as that of the mandrels and for bringing the roll's geometrical axis parallel to that of the mandrels.
  • In this way the roll can be correctly placed in position between the two mandrels by a simple movement of translating said roll from the positioning station to the loading station.
    Said positioning station is therefore provided with means for checking the spatial position of the roll in relation to the supporting mandrels on the plant, with further means for moving the roll-carrying carriage in the direction of said roll's geometrical axis, with means for operating said carriages vertical movement to the required level, with means for operating angular movement of said carriage horizontally and with means for operating angular movement of said carriage on a vertical plane.
  • The following equipment is used for these various operations and for transferring the roll from one station to another:
    • a roll-holding carriage,sliding on first rails fixed to the floor, that supports the roll parallel to its sliding axis;
    • a table supporting the carriage on second rails which can be aligned with the first rails;
    • a translating means supporting the table and third rails that can be aligned with the first ones for transferring the carriage from a picking up station to positioning and loading stations;
    • a hoisting means that supports the translating means on sliding guides aligned with the floor guides perpendicular to the second and third rails;
    • a system for detecting the spatial position of the roll;
    • an electronic control panel for programming and operating the movements of the various pieces of equipment and for carrying through an automatic cycle.
  • As soon as the carriage has reached an approximately central position on the table, the two motor-driven devices determine hoisting movement and action by two levers one of which locks and the other presses the transversal sides of the carriage, one on each side, locking it in its position of arrival on the table.
    At the positioning station the forward movement of one lever and simultaneous backward movement of the other lever ensure that the roll is longitudinally centered on the carriage in relation to the roll-supporting mandrels referred to above.
    The table can rotate fanwise, in relation to the translating means, around a vertical pin placed close to one of said table's transversal sides, rotated by a motor-driven device which locks said table on the longitudinal axis of symmetry aligning its rails with those of the translating means.
    Said device orientates the axis of the roll placed on the carriage in line with the common geometrical axis of the roll-supporting mandrels on the roll-utilizing machine.
    The hoisting means translates vertically by devices mounted one close to one side and one close to the other, respectively facing one mandrel and the other referred to above.
    The devices respectively close to one or other of the above sides can synchronise their action for uniform translation of the hoisting means, or else can operate separately to obtain a position for the hoisting means such that the levels of the geometrical axis of the roll, on each side of said roll, respectively correspond to the levels of each of the mandrels referred to above.
    The detector system comprises two detector devices, substantially the same, mounted as a pair in the positioning station, one on one side of the hoisting means and the other on the other side.
    Each device comprises a slide equipped with a sensor for determining the longitudinal position of the roll, said sensor automatically regulating movement of said slide until it reaches the previously fixed position in relation to said roll.
    Said sensors also control automatic action of the locking and pressing levers placed, on the table transporting the carriage, one against each side of said carriage, until the sensors signal that the roll has been longitudinally centered in relation to the position of said detector devices and therefore in relation to the above mandrels.
    The detector devices comprise height sensors, one borne by one of the slides of said devices practically at the height of one of the above mandrels and consisting of a radiation emitter, the other sensor being borne by the other slide practically at the height of the other mandrel and consisting of a photoelectric cell or other type of receiving sensor.
    A stop order is automatically given to the hoisting means when the radiations passing through the tubular core of the roll reach the photoelectric cell confirming that the geometrical axis of the roll is almost at the level of the above mandrels.
    On each slide of the above devices a head is mounted, said head moving longitudinally and horizontally and supporting a cone-shaped projection by means of a ball joint.
    Radial elastic means keep the geometrical axes of said cone-shaped projections reciprocally aligned with the geometrical axis between the mandrels of the roll-utilizing machine, the position of said projections being controlled by a group of radial sensors.
    Advancement of the slides having brought the cone-shaped projections into contact with the roll core, said projections assume a more or less angular position according to the position of the roll in relation to the axis of alignment of said projections.
    On receiving the signals issued by the radial sensors, the electronic control panel controls backward or forward movement of the translating means, rotation of the table supporting the carriage around its fulcrum on the translating means and vertical movement of one or other side of the hoisting means until the position sensors signal that the geometrical axes of both cone-shaped projections coincide with the axis of the roll.
    The translating means further comprises a device for discharging the roll core remaining on the mandrels when the whole roll has been consumed. Said discharging device consists of a projecting body rotating around a horizontal motor-driven shaft and having an oblong seat parallel to said shaft.
    When rotating, said body can take up two positions: a discharging position with the seat for the roll core substantially horizontal and the other discharging position with the seat of said core substantially vertical.
    Once the roll is exhausted the loading position of the discharger, translation of the translating means and raising of the hoisting means are operated automatically and progressively until the seat for the roll core is brought immediately below said core,held in position by the mandrels of the roll-utilizing machine, after which the mandrels are made to withdraw allowing the core to fall onto said seat and the discharger moves to the discharging area where it assumes a discharging position causing the core to fall in that area.
    By means of the apparatus described, the following automatic cycle of operations is carried through.
    The roll having been placed on the carriage, standing at some point accessible to the loading means, said carriage is brought to the first loading station passing along the floor rails, along the translator rails and along those for the table as far as the central point of said table.
    The two levers on the table for locking and pressing rise up and lock the carriage in position.
    The translating means moves towards the hoisting means, passing from the floor guides onto those of the hoisting means, carrying the roll to the positioning station.
    The hoisting means rises until stopped by the sensors for indicating level.
    The positioning sensors determine the correct position of the slides on the detector devices and the roll is then centered longitudinally in relation to the cone-shaped projections and therefore in relation to the mandrels mounted on the roll-utilizing machine.
    The cone-shaped projections advance until aligned with roll orientation; the sensors on said projections adjust the geometrical axis of the roll to correspond with that of the mandrels and bring the roll into the correct position. The carriage then moves to the loading station and the roll is placed in line with the above mandrels.
    The mandrels approach the roll and take it up.
    The hoisting means descends and the translating means returns to the first loading station.
    As soon as the roll is exhausted the sequence of core unloading movements commences at the conclusion of which the system is ready to start a fresh cycle.
    Characteristics and purposes of the invention will be seen still more clearly by the following example of its execution illustrated by diagrammatic drawings.
  • Fig.1.
    The loading means seen from above.
    Fig.2.
    A longitudinal section view of the loading means.
    Fig.3.
    Partial front view of the loading means.
    Fig.4.
    Detail of the translating means seen from above.
    Fig.5.
    Detail of the translating means,longitudinal section.
    Fig.6.
    Detail of the translating means, transversal section.
    Fig.7.
    Detail of one of the devices, mounted in a pair,for detecting the longitudinal position of the roll, longitudinal section.
    Fig.8.
    Detail of the sensor for longitudinal positioning of the roll, transversal section.
    Fig.9.
    Detail of the set of radial sensors ascertaining the angular position of the roll, transversal section.
    Fog.10.
    Detail of one of the devices, mounted in a pair, for ascertaining the position of the roll, transversal section.

    The apparatus comprises a front base (10), corresponding to supply station (A) (Fig.2), said base being secured to the floor (11), adjustable in height by means of feet (12),and a central base (13) (Fig.2) secured to the floor (14) and adjustable in height by its feet (15).
    The guides (20) are mounted on the front base (10) and consist of a pair of cylindrical tubes (22), (23) fixed to the longitudinal support (24) (Fig.3) secured by bolts.
    Said guides are aligned with others (30) (Fig.4) of similar composition mounted on the hoisting means (35) and comprising the pairs of cylindrical tubes (32), (33) fixed to the longitudinal support (34).
    The hoisting means (35) is supported by the vertical threaded rods (40,41,42,43) inserted in threaded ring nuts (44) secured inside the pins (45) housed in the supports (46) of the central base (13).
    Said threaded rods are rotatable by means of electric motor (60) (Fig.1) through a kinematic transmission comprising the connector block (62) for connection to shaft (63), connector blocks (61) for connection to shafts (64), (65) and connector blocks (66, 67, 68, 69).
    The connector block (70), for connection to electric motor (71) is mounted between shaft (64) and connector block (67).
    Connector block (72), for connection to electric motor (73), is mounted between shaft (65) and connector block (69).
    Coupling (74) is mounted between connector block (62) and electric motor (60).
    Coupling (75) is mounted between shaft (63) and connector block (61).
    By means of these couplings motor (71) rotates threaded rods (40, 41) placed at one side of the hoisting means (35), while motor (73) rotates threaded rods (42), (43) placed at the other side of said hoisting means.
    Simultaneous rotation of threaded rods (40-43) raises or lowers hoisting means (35) while rotation of the pair of threaded rods (40,41) or of the pair (42, 43) makes possible adjustment of hoister means height on one side and on the other.
    Guides (20) and (30) on the base (10) and on the hoisting means (35) respectively, support the translating means (81) by means of the bushings (80).
    Threaded ring nuts (85) (Figs. 1 and 2) are mounted on the inner side of said translating means and, within said nuts, pass threaded rods (86) mounted longitudinally and parallel on the hoisting means (35) with supports (87) allowing said rods to rotate freely.
    An electric motor (90) is installed on the hoisting means (35), said motor rotating threaded rods (40), (43) assisted by a kinematic transmission comprising wheels (91), (92) connected by chain (93), shafts (94) and (95), connection block (96), cog wheels (97), (98) connected by chains (99).
    By putting motor (90) in rotation, according to its direction, translating means (81) passes from base (10) (Fig.2) to the hoisting means (35) along guides (30).
    The translating means (81) has an oblong longitudinal cavity (100) in which, along its axis (Figs. 2,5, 6) there is a recess (101) of trapezoidal cross section; on the edges of said cavity, at each of the four corners is mounted a ball bearing (102) on which rests the table (105) of a trapezoidal cross section with horizontal extensions (106), (107).
    By means of bushing (110) (Figs. 3, 5) said table (105) can swing around the vertical pin (111) fixed to the translating means (81) and placed at one end of said table's longitudinal axis.
    Close to the other end there is a pin (112) on table (105) which pin penetrates into the hole (113) of a tie rod (114) fixed to the sliding means (115). Said sliding means is threaded and in this threading the small threaded shaft(116) is caused to rotate by the kinematic group (117) driven by the motor (118) (Fig. 4).
    Therefore, according to motor rotation, the angle of table (105) can be varied horizontally in relation to the longitudinal axis along which the rail (130) is placed consisting of two iron channels, one opposite the other, made to take the wheels (132), (133) mounted as a pair on either side of the vertical central support (134) under a flat carriage (16). This carriage (16) (Fig.3) is so shaped as to have a slight longitudinal depression (141) on which the roll (200) rests and by which it is guided.
    The translating means (81) houses a device (145) composed of a shaft (146) to which, at one end, is fixed the lever (147) with adjustable head (148) and, at the other end, an arm (149) connected to an electric motor (154) by a threaded ring nut (150), revolving on the end of said arm and in which a threaded shaft (151) rotates, said shaft being in turn connected to the shaft of said motor by a rotating joint (152).
    A second device (159), substantially the same as the first device (145), comprises a shaft (160), electric motor (161) and lever (162) with a head (163).
    When not in use the two levers (147) and (162) remain below the carriage (16) allowing it to slide freely along the guide (130).
    When the carriage is moved by hand to a practically central position on the translating means (81), the two levers (147) and (162) rise up and their respective heads (148) and (163) move against the one side (17) and the other side (18)of said carriage locking it in a position from where it is easily ad-adjustable by means of the two motors (154) and (161).
    The rails (170) and (171) of the translating means (81) are substantially the same as rail (130) to which they are aligned one on each side of the table (105).
    On the floor (11),at either side of the translating means(81), are rauks (173) and (174) substantially alike those already described (130), (170) and (171).
    At a central point on its transversal axis, the translating means (81) supports a device (123) (Figs. 4, 6) for discharging the core (201) of the roll (200) when said roll is exhausted.
    Said discharging device consists of a body fixed to, and projecting out, from a shaft (125) revolving on the sides (122) of the translating means (81). At the summit of said body there is a channel (124) made for housing the cores (201) of the rolls.
    A toothed arch (126) is splined onto one end of the shaft(125), said arch meshing with pinion (127) which the electric motor (129) rotates through the ratiomotor (128).
    Shaft (125) and channel (124) are parallel one to another and perpendicular to the direction of movement of the translating means (81). Therefore when said translating means takes up its position at the roll-bearing arms (26) of the machine (27),said channel (124) will lie parallel to the roll core (201) and beneath it.
    Devices (180) (181), showing the position of the roll (200) (Figs. 2, 3, 7-10), are mounted at positioning station B on either side of the hoisting means (35).
    Each of these detector devices comprises a base (182) on which guides (183) are mounted made from a cylindrical bar, over which move the bushings (185) fixed to the slide (184).
    Supports (186) for the threaded rod (187) are rotated by an electric motor (188) and are fixed to the above base. A threaded bushing, mounted on said threaded rod (187) is supported by a bracket (190) fixed to the slide (184).
    Said slide comprises parallel horizontal guides (191) made from cylindrical bars, along which move the bushings (192) fixed to the head (193) of the detecting device concerned.
    Slide (184) supports, on a bracket (207), articulation (202) of fluidic cylinder (203) for movement of piston (204) secured to articulation (205) of bracket (206) fixed to the head (193) by bushing (192). By means of a vertical plate (210) and coupling (211), said head (193) supports the detecting cone (212) for roll (200) with its tubular core(201).
    Said cone is fixed to a rod (213) articulated, in relation to the coupling (211), by a ball joint (214).
    An adjustable balancing weight (215) is mounted on the back end of said rod.
    A spherical collar (216) is mounted between said weight and ball joint (214), said collar carrying radial pressure devices (220) each comprising a compression spring (221) and a piston (222) supported by a sliding structure (223).
    A rolling means (224) articulated in the pin (225) is mounted at the end of said piston.
    A spherical collar (230) is mounted between the ball joint (214) and the detecting cone (212), said collar supporting radial electronic sensors (231) and (232) (Figs. 7 and 8) sustained by the end of the coupling (211).
    At the top of centering cone (212) an electronic sensor (233) is connected to the central control panel by an electric wire (234).
    On a level lower than that of detecting cone (212), slide (184) has at its front end an electronic limit stop (240), said stop comprising the horizontal piston (241) with head (242) sliding within the cylinder 243 and subject to pressure by a compression spring (244).
    At the back end of said piston (241) there is a cone-shaped projection (245) on whose trajectory lies sensor (246) supported by structure (247) fixed to the slide (184).
    The detector device (181),substantially the same as device (180), includes the detecting cone (195), head (196) and electronic limit switch (197).
    In Figure 2, at station C, there is a diagrammatic presentation of the position of roll-carrying arms 26, a part of the machine 27.
    After placing the roll (200) on the carriage (16), stationed at a point accessible to loading means, the carriage is moved by hand to a practically central position on table (105) (Figs. 1 and 4) supported by translating means (81).
    Special sensors, not shown in the figures, emit luminous signals when the carriage has been centered, or if it is still not centered on said table (105).
    Once centering has been achieved, a switch is pressed to start the automatic cycle which takes place as follows.
    Operated by their respective motors the two levers (147), (162) on devices (145), (159) each exert pressure on sides (17), (18) respectively of the carriage (16) thus locking it (see Figures 1,3, 4-6).
    Motor (90) (Figs. 1, 2) starts up and moves, by means of the already described kinematic transmissions and of the horizontal threaded rods (86), the translating means (81) onto the hoisting means (35) as far as position (81') (Fig. 2) indicated by dotted lines, corresponding to the position of the carriage between the detector devices (180),(181).
    Motor (60) (Fig.1) moves the vertical threaded rods(40-43) (Figs. 1 and 2) which raise the hoisting means (35) lifting the roll from (200) to (200') practically in alignment with detector cones (212) and (195).
    When the photoelectric cell (233) (Fig.7),placed inside the cone-shaped projection (211) and connected by a wire (234) to the control panel operating the whole automatic cycle, receives rays from a source of light inside the detector cone (195), Figs. 1, 2, 3), said cell stops the lifting motion of the hoisting means (35).
    The rays of light (198) (Fig.7) from inside said detector cone (195) reach the photoelectric cell (233) through the tubular core (201) of the roll (200).
    After the signal to cease hoisting movement, a signal goes to motors (188) (Fig.3) which translate the slides (184) fitted with sensors (240) and (197).
    As soon as said sensors meet said roll, they signal the slides to stop forward movement and if one is too far forward it is made to move back.
    According to measurements made by the above sensors (240) and (252), if thereby it is found that the roll is not perfectly centered between them, signals to this effect received at the electronic control panel and then issued by it, actuate motors (154) and (161) (Fig.4) which, by means of arms (147) and (162), move the carriage (16) until it is correctly centered.
    The fluidic cylinders (203) (Fig.7) then begin to function and move the cone-shaped projections (121) and (195) until they touch the core (201) of the roll (200').
    As already described, the cone-shaped projections are subject to action by pressing means (220) (Figs. 7, 10); when said projections are not active, said pressing means keep them elastically in a central position and therefore reciprocally aligned on an axis practically parallel to the axis common to the roll-bearing mandrels of arms (26) of the roll-utilizing machine (27) (Fig.2).
    The electronic sensors (231) and (232) (Figs. 7, 9) ascertain if the cones are at an angle in relation to the correct central position, any such angle being due to imperfect horizontal or vertical alignment of the roll's axis in relation to alignment between the cones (212) and (195).
    To correct the position of the roll with that of cone (195) the electronic control panel actuates motor (90) (Fig.1) for moving the threaded rods (86) horizontally, and motor(71) that moves the threaded rods (40) and (41) vertically To correct the position of the roll in relation to cone(212) motor (118), supported by translating means (81) moves the table (105) horizontally round the fulcrum point (11) (Figs. 1, 4, 5); motor (73) then moves threaded rods (42), (43) vertically.
    To permit the threaded rods (40), (41), and therefore motor (71),to operate independently of threaded rods (42), (43) and therefore of motor (73), connection with motor (60) is cut off by detachment of joint (74) and connection between shafts (64) and 65) is cut off by detachment of joint (75) (Fig.1).
    Position of the roll having been corrected until its axis is practically parallel with the axis common to both roll-bearing mandrels, by means of motors (188) Fig.3) in detector devices (180), (181) the cones withdraw to their resting position.
    Adequate luminous signals, not illustrated in the figures, light up when the roll has reached its correct position.
    Translating means (81) then moves in the direction of arms (26) on the main machine (27) (Figs. 1, 2) and into position (81'') where the hoisting means (35) takes the roll (200) to position (200'').
    The control panel releases levers (147) and (162) locking the carriage (16) (Fig.4), and the mandrels move out from the roll-bearing arms and close into the core (201'') of the roll.
    Motor (60) (Fig.1) lowers the hoisting means (35), motor (90) starts up and returns the translating means (81) to its initial resting position shown in Fig.1.
    When the roll is exhausted, switches on the control panel can be pressed to start the roll-changing sequence.
    Motor (129) (Fig.4) raises the discharging means (123) to position (123') (Fig.2).
    Motor (90) moves the translating means (81) back to arms (26) on the main machine (27) in position (81'').
    Motor (60) starts up for raising the hoisting means (35) and then the translating means (81) to position (81''') and the discharging means (123) to position (123'') (Fig.2) where it can take hold of core (201'') of roll (200).
    The position of the hoisting means is indicated by (35') and that of the table by (105'').
    Having taken hold of the core as above, the mandrels on the main machine (27) return to their resting positions, the hoisting means (35) returns to its lower level and the translating means (81) returns to its starting position as illustrated in Figures 1 and 2.
    This completes the cycle and a fresh one can be begun.
    As already explained the loading means carries out the following operations by almost entirely automatic movements:
    • spatial positioning of the roll so that it is centered, in relation to the position of the mandrels on the roll-utilizing machine, in such a way that said roll's axis is practically parallel to the axis common to said mandrels and lies on the same horizontal plane;
    • mounting of said roll between said mandrels by a simple translation movement of the translating means and therefore of the roll;
    • discharge of the core when said roll is exhausted.

    The above process eliminates almost entirely the need for personnel to change rolls, drastically reduces down time and waste, improves efficiency, reduces costs and increases output.

Claims (4)

  1. Loading apparatus for rolls of paper or of other material for rotary printers, impregnating systems for plastic laminates, packing machines and other kinds of roll using machines which comprises a roll-holding carriage (16) sliding along first rails (173) (174) fixed to the floor, said carriage supporting the roll (200) parallel to its sliding axis, a table (105) supporting the carriage (16) on second rails (130) which can be aligned with the first rails, a translating means (81) supporting the table (105) and third rails (170, 171) which can be aligned with the first ones and transferring the carriage (16) from the picking up station (A) to the positioning station (B) and loading station (C), said translating means moving horizontally on floor guides (20) and on sliding guides (30) perpendicular to the first, second and third rails, a hoisting means (35) with said sliding guides (30) aligned with the floor guides (20), a system for detecting the spatial position of the roll and an electronic control panel for programming and operating the movements of the various component parts and for carrying through an automatic cycle, wherein the table (105) can rotate fanwise in relation to the translating means (81) around a vertical pin (111) placed close to one of said table's vertical sides to allow adjustment on a horizontal plane of the position of the axis of the roll (200) placed on the carriage (16) and the hoisting means (35) can translate vertically by means of devices (40-41, 42-43) placed close to one side and the other side respectively of one and the other mandrel of the roll-using machine,so that it is possible to actuate the devices (40-41, 42-43) to make the levels of the geometrical axis of the roll (200) on one side of it and on the other correspond respectively with those of one mandrel and the other mandrel or the roll-using machine (27), and devices (145) (159) being mounted on said table (105) for determining movement of said carriage (16) on its rails (130) and therefore of the roll (200) on its geometrical axis.
  2. Loading apparatus as in claim 1
    characterized in that positioning station (B) comprises two substantially similar detecting devices (180) (181) placed as a pair one on either side of the translating means (81) each comprising a slide (184) equipped with a sensor (240) that detects the longitudinal position of the roll (200) placed on the carriage (16), the electronic control panel operating automatic movement of said slide (184) until the pre-set optimum position has been reached in relation to the roll (200), said panel then operating the two devices (145) (159) on the table (105) to set the position of the roll-carrying carriage (16) in the direction of said roll's axis until, as indicated by said detectors (240), the roll (200) has been longitudinally centered in relation to the position of said detecting devices (180) (181) and, therefore in relation to the mandrels mounted on the roll-using machine (27), said detecting devices (180) (181) comprising height-indicator sensors, one sensor mounted on one of the slides (184) practically level with one of the mandrels on roll-using machine (27), said sensor consisting of a radiation-emitting means, and the other sensor mounted on the other slide (184) practically level with the other mandrel, said latter sensor consisting of a photoelectric cell (233) or other type of receiving sensor, the electronic control panel automatically operating vertical movement of the hoisting means (35) to adjust the level of the geometrical axis of the roll (200) placed on the carriage (16), then stopping said movement when, through the tubular core (201) of the roll (200), radiations strike the photoelectric cell (233) confirming that the geometrical axis of the roll (200) has become practically level with the mandrels on the roll-using machine (27), a longitudinally and horizontally sliding head (183) being mounted on each of the above slides (184) and, by means of a ball joint (214),supporting conical projections (212) (195), said projections (212) (195) being kept in the idle position by radial elastic means (221) so that their geometrical axes coincide with an axis of reciprocal alignment parallel to the geometrical axis between the mandrels on the roll-using machine (27), the position of said conical projections (212) (195) being controlled by a set of radial sensors (231) (232), contact between said conical projections (212) (195) and the core (201) of the roll (200) being made by the electronic control panel, said projections being therefore set at a more or less angular position according to the position of the roll (200), the electronic control panel consequently moving the translating means (81) backward or forward, rotating the table (105) that supports the carriage (16) round its pivot on the translating means (81) in one direction or the other, and translating vertically upward or downward the one side or the other of the hoisting means (35) to adjust the geometrical axis of the roll(200) on a vertical plane, acting on the hoisting devices (40, 41) (42 43) until the above sensors (231) (232) signal coincidence between the geometrical axis of the roll (200) and the geometrical axes of reciprocal alignment of the above mentioned conical projections (212) (195).
  3. Loading apparatus as in claim 1,
    characterized in that the means for making the carriage (16) move along its rails (130) and therefore substantially along the axis of the roll (200) consist of two motor-driven devices (145) (159) fixed to the table (105) so that, when the carriage (16) has more or less reached the centre of said table (105), said devices raise and operate locking and thrust levers (147) (162) respectively on the transversal sides (17 and 18) of the carriage (16) holding said carriage at its position of arrival on the table (105) or at the various positions obtainable by moving one of levers (147) (162) forward and simultaneously moving the other lever (147) (162) backward.
  4. Loading apparatus as in claim 1,
    characterized in that the translating means (81) comprises a device (123) for discharging the core (201) of the roll (200) when said core remains on the mandrels after all the roll has been used up, said device consisting of an outward projecting body rotating round a horizontal motor-driven shaft (125), said body having an oblong seat (124) parallel to said shaft which when rotating, can assume two positions, a loading position with the seat (124) for the core (201) of the roll (200) substantially horizontal, and a discharging position with the seat (124) for the core (201) substantially vertical, so that when the roll is used up, operations of loading the discharger (123) translating the translating means (81) and raising the hoisting means (35) are automatically and progressively carried out until the seat (124) for the core (201) of the roll (200) is brought immediately below said core (201) still on the mandrels of the roll-using machine (27), said mandrels being then reciprocally withdrawn causing the core (201) to fall onto said seat (124) and the translating means (81) to be transferred followed by transfer of the discharger (123) to a discharging area where it assumes its unloading position allowing the core (201) to fall onto said discharging area.
EP19880903921 1988-03-10 1988-04-26 Automatic loading apparatus for rolls of paper and other material Expired - Lifetime EP0427714B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT1971988A IT1216045B (en) 1988-03-10 1988-03-10 PAPER AND OTHER MATERIAL. AUTOMATIC LOADER FOR
IT1971988 1988-03-10

Publications (2)

Publication Number Publication Date
EP0427714A1 EP0427714A1 (en) 1991-05-22
EP0427714B1 true EP0427714B1 (en) 1993-01-20

Family

ID=11160641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880903921 Expired - Lifetime EP0427714B1 (en) 1988-03-10 1988-04-26 Automatic loading apparatus for rolls of paper and other material

Country Status (5)

Country Link
EP (1) EP0427714B1 (en)
AU (1) AU1703788A (en)
DE (1) DE3877774D1 (en)
IT (1) IT1216045B (en)
WO (1) WO1989008598A1 (en)

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CN100402396C (en) * 2002-07-12 2008-07-16 曼.罗兰.德鲁克马辛伦公司 Positioner for loading/unloading tray of rolled paper for rotary wheel printer

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CH678718A5 (en) * 1989-04-05 1991-10-31 Von Roll Ag
DE4037671C2 (en) * 1990-11-27 1993-05-19 Sundwiger Eisenhuette Maschinenfabrik Gmbh & Co, 5870 Hemer, De
DE4215739C2 (en) * 1992-05-13 1995-11-30 Kleinewefers Gmbh Method and device for loading and unloading rolls wound with a material web in a machine having a roll carrier with several roller positions for processing the material web, in particular a printing machine
DE4236632A1 (en) * 1992-10-30 1994-05-05 Falkenstein Lager Foerdertech Device for locking rollers with touch-sensitive surfaces in a rolling device
IT1264116B1 (en) * 1993-04-09 1996-09-10 Azionaria Costruzioni Acma Spa  METHOD AND DEVICE FOR THE ADVANCE OF COILS BETWEEN TWO OPERATING STATIONS.
DE29609589U1 (en) * 1996-05-30 1996-09-19 Roland Man Druckmasch Transport system for feeding paper rolls to a roll changer
US5833167A (en) * 1996-05-30 1998-11-10 Man Roland Druckmaschinen Ag Transport system for conveying a reel of paper to a reel changer
DE59706549D1 (en) * 1996-12-21 2002-04-11 Koenig & Bauer Ag Method for registering and positioning a supply web roll
FI104889B (en) * 1998-03-05 2000-04-28 Valmet Corp Method and arrangement for changing wrapping rolls in a roll wrapping apparatus
DE102005008168A1 (en) * 2005-02-22 2006-08-31 Man Roland Druckmaschinen Ag Reel changer of a web press
DE102005032600B4 (en) 2005-07-13 2007-10-25 Koenig & Bauer Aktiengesellschaft Device for aligning a roll of material in front of the uprights in a reel changer

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DE2631355A1 (en) * 1976-07-13 1978-01-19 Lager & Foerdertechnik Paper roll transport platform - has central supporting portion slewing in horizontal plane together with peripheral support rollers
JPS5638496B2 (en) * 1977-03-04 1981-09-07
NZ202054A (en) * 1981-10-05 1985-03-20 Rengo Co Ltd Apparatus for automatically mounting web roll on mill roll stand
DE3402582C2 (en) * 1984-01-26 1987-03-12 M.A.N.- Roland Druckmaschinen Ag, 6050 Offenbach, De
IT1221027B (en) * 1985-12-31 1990-06-21 Mondadori Editore Spa STATION FOR LOADING PAPER REELS ON THE REEL ROTARY ROTARY HOLDER

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN100402396C (en) * 2002-07-12 2008-07-16 曼.罗兰.德鲁克马辛伦公司 Positioner for loading/unloading tray of rolled paper for rotary wheel printer

Also Published As

Publication number Publication date
WO1989008598A1 (en) 1989-09-21
AU1703788A (en) 1989-10-05
EP0427714A1 (en) 1991-05-22
DE3877774D1 (en) 1993-03-04
IT1216045B (en) 1990-02-22
IT8819719D0 (en) 1988-03-10

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