EP2398726A2 - Mécanisme d'entraînement pour un dispositif destiné à réaliser un pliage en accordéon avec une bande de matériau fibreux - Google Patents

Mécanisme d'entraînement pour un dispositif destiné à réaliser un pliage en accordéon avec une bande de matériau fibreux

Info

Publication number
EP2398726A2
EP2398726A2 EP10704765A EP10704765A EP2398726A2 EP 2398726 A2 EP2398726 A2 EP 2398726A2 EP 10704765 A EP10704765 A EP 10704765A EP 10704765 A EP10704765 A EP 10704765A EP 2398726 A2 EP2398726 A2 EP 2398726A2
Authority
EP
European Patent Office
Prior art keywords
material web
drive
fiber material
drive mechanism
stack
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.)
Pending
Application number
EP10704765A
Other languages
German (de)
English (en)
Inventor
Andreas SPRICK-SCHÜTTE
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.)
Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Original Assignee
Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
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 Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH filed Critical Sprick Bielefelder Papier und Wellpappenwerke and Co GmbH
Publication of EP2398726A2 publication Critical patent/EP2398726A2/fr
Pending legal-status Critical Current

Links

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
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag 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
    • B65H20/00—Advancing webs
    • B65H20/30—Arrangements for accumulating surplus web
    • B65H20/32—Arrangements for accumulating surplus web by making loops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/32—Auxiliary devices for receiving articles during removal of a completed 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
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/10—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with devices for breaking partially-cut or perforated webs, e.g. bursters
    • 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
    • B65H2301/421—Forming a pile
    • B65H2301/4216—Forming a pile of web folded in zig-zag form
    • 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
    • B65H2404/10—Rollers
    • B65H2404/14—Roller pairs
    • B65H2404/142—Roller pairs arranged on movable frame
    • B65H2404/1421—Roller pairs arranged on movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/21—Accumulators
    • B65H2408/212—Accumulators of zigzag-type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/112—Section geometry
    • B65H2701/1123—Folded article or web
    • B65H2701/11231—Fan-folded material or zig-zag or leporello
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the invention relates to a drive and folding mechanism for a device for laying a particular unfolded fiber material web, in particular a paper web or a corrugated paper web, such as a corrugated cardboard web, in a Leporellofaltung.
  • a corrugated cardboard web is often used for packaging purposes, for example, by laying apart corrugated board layers for cushioning adjacent goods to be laid.
  • a corrugated cardboard cut can be contoured on one or two sides.
  • one side is formed by a corrugated paper layer onto which a smooth paper layer is glued to form the other side.
  • the corrugated board web can also be superimposed by several flat and wavy paper layers to increase the buffering property.
  • the packaging material In order to optimize the packaging process, it is common practice to strip the packaging material from a source of packaging material, which may be either a wound roll or a leprosophila stack. Because of its cuboid outer shape of the Lepor rellofaltstapel is often preferred for space-saving storage property and simple stacking paths.
  • the peeling or unfolding of a Leporellofaltstapel is relatively simple, because no heavily dimensioned pivot bearing for the corrugated roll are necessary.
  • the corrugated board webs are usually provided by the papermakers on rolls, so that to create a Leporellofaltstapels the corrugated board web must first be unwound from the endless rollers and folded accordingly leporello.
  • a device for laying a particular unfolded, endless fibrous material web in a Leporellofaltung, which device comprises a drive mechanism is known from DE 196 44 383 Cl.
  • the known Leporellofaltvoriques has a platform on which a fiber material stack can be laid by a stack forming mechanism.
  • the fibrous material web is guided by a fiber material web source via a plurality of rollers to a drive mechanism which is formed by two mutually parallel drive belts.
  • the drive belts are arranged vertically to the platform and guide the Fiber material web vertical to the platform down. In order to achieve the fan-shaped zigzag folding, the vertically oriented drive belts are displaced in the horizontal direction back and forth.
  • a drive mechanism for a Leporellofaltvorrich- device is known in which a pair of pendulum pair upstream drive roller subtracts a web of material web source and the pendulum rod feeds pair which is to form the Leporellofaltung by a back and forth pivoting movement.
  • OS 19 64 858 discloses a drive mechanism for a Leporellofaltvorraum, in which a draw roller peels off the web, which is fixedly secured to a carrier. About a multi-link chain, a swing arm is driven, the end of the tension roller feeds the web.
  • a drive and folding mechanism for a device for laying a particular unfolded fiber material web in particular a paper web or a corrugated paper web, such as a corrugated cardboard web, provided in a Leporellofaltung.
  • the drive mechanism includes at least a pair of opposing rollers.
  • the rollers form a passage gap for the fiber material web.
  • the passage gap can be dimensioned such that there is always contact between the fiber material web and the two rollers when the fiber material web is being carried out.
  • the rollers each define an axis of rotation, which axes of rotation do not coincide. The rollers rotate about their own axis of rotation, in particular during passage of the fiber material web through the passage gap.
  • a rotary axis roller drive which rotatably drives at least one of the two rollers for conveying the fiber material web through the passage gap formed by the rollers to the Leporellostapelung, and a pivot drive is provided, which in particular has a pendulum axis not coincident with the axes of rotation.
  • the at least two rollers are mounted so pivotally that they are pivoted back and forth on actuation by the pivot drive, the axes of rotation of the rollers about the common pendulum axis.
  • the measure according to the invention it is possible to significantly reduce the dimension of the drive mechanism in particular so that the entire Leporellofaltvoriques, especially in the vertical direction regardless of the desired width of the Leporellstapels to be laid.
  • corrugated board webs usually have a width of at least 1000 mm
  • the measure according to the invention it was found that less air turbulence due to the reduced movement amplitudes are generated by the measure according to the invention and the concomitant reduction in height, whereby the air resistance is reduced and thus to drive the Drive mechanism necessary energy.
  • the fibrous material web in particular in the case of paper webs, is less severely impaired due to the less present air turbulences, the fibrous material web, whereby a more precise Leporellofaltung is possible.
  • the production speed can be increased when Leporellofalten.
  • the pendulum axis is substantially parallel to the axes of rotation, which allows a simple structural design.
  • the pendulum axis is arranged in the region of the passage gap, whereby the height and the dimension of the drive mechanism and the Leporellofaltvorraum can be minimized.
  • the center distances between the pendulum axis and the axes of rotation of the rollers and / or a width of the passage gap remain constant during an entire reciprocating movement of the roller pair. In this way, a precise Leporellofaltung can be achieved.
  • connecting lines between the pendulum axis and the respective axes of rotation define an acute or obtuse angle which is greater than 25 °, 30 °, 45 ° or 60 °, preferably approximately equal to 180 °. In this way, it is taught to arrange the pendulum axis as close as possible to the pair of rollers in order to keep the pivoting amplitudes of components of the drive mechanism as small as possible.
  • the pendulum axis extends transversely to a longitudinal direction or a conveying direction of the fiber material web, in particular perpendicular thereto, through the passage gap.
  • the pendulum axis extends between the rollers over.
  • the pendulum axis extends through the passage gap at substantially equidistant, shortest distances to the at least two rollers.
  • the pendulum axis may be arranged in the region of the fiber material web, in particular parallel thereto, preferably in a plane which is defined by the fiber material web in the region of the passage gap, in particular in the passage gap.
  • the passage gap defines a delivery direction for the fiber material web leaving the passage gap.
  • the dispensing direction can, with respect to a vertical direction, which corresponds in particular to the gravitational direction and perpendicular to the horizontal direction, when pivoting the at least two rollers a pivot angle sector of at most 180 ° and at least 20 °, preferably between 60 ° and 140 °, go through.
  • the pivoting angle sector thus comprises two maximum angular positions, which can be at most 90 ° and at least 10 ° with respect to the vertical direction.
  • the discharge direction is pivoted by 45 ° to 75 ° relative to the vertical direction on both sides.
  • the swivel angle sector is symmetrical to the vertical direction on which the pendulum axis is arranged.
  • the swivel angle sector can be adjusted depending on a distance of the passage gap for storage, in particular to a top sheet of the already laid fiber material web stack, and depending on a width of the Leporellofaltung.
  • the rotary axis roller drive and the pivot drive are coordinated so that when laying the fiber material web in the Leporellofaltung a defined by the passage gap dispensing direction for the fiber material web towards a folding end of the fiber material web stack has, where a next Leporellofalte the Leporellofaltung is to be formed.
  • the dispensing direction can be defined by parallel tangential directions at opposite circumferential points of the rollers at the shortest distance, wherein in particular the circumferential locations are determined in particular by contact points of the fiber material web on the rollers.
  • the drive mechanism is formed without further roller, without any further mechanical engagement with the fiber material web, between the at least two rollers and the last laid Leporellofalte the Leporellofaltung. It can be provided to provide only a single drive roller for advancing the fiber material web.
  • the pendulum axis is in particular arranged or mounted stationary relative to the support frame of the device or the drive mechanism.
  • the pivot drive has a driven pulley whose axis of rotation preferably coincides with the pendulum axis P.
  • the pivot drive may have a drive pulley, which in particular be coupled via a power transmission means, such as a toothed belt, with the driven pulley.
  • a connecting rod is articulated via an output connecting point which is eccentric to an axis of rotation of the drive disk and is articulated to the drive shaft via a drive articulation point which is eccentric to the axis of rotation of the drive shaft.
  • Center axis distances of the articulation points are determined such that in a continuous drive rotation of the drive shaft only in one direction of rotation a Pendelschenkamba is performed by the drive pulley.
  • the center-to-center distance of the output armature point is greater than the center-to-center distance of the drive armature point.
  • the center distance of the Abretesanlenkstelle on the drive pulley is adjustable, in particular provided several Abretesanlenkstellen particular in the form of holes for receiving coupling pins of the connecting rod to the drive pulley.
  • the rollers between fixed operating positions are mutually adjustable and detectable in the operating positions, wherein an operating position set a large distance for threading the fiber material web between the at least two rollers and an operating position a small gap forming the passage gap.
  • a feed of the fiber material web in the longitudinal direction thereof is realized exclusively via the rotary axis rolling drive, in particular via only one driven roller of the roller pair.
  • the rotary axis roller drive has two independently controllable rotary motors, one of which in each case drives one roller of the roller pair.
  • the rotary axis roller drive has a servomotor, in particular for each roller.
  • the driven roller in particular only the driven roller, is in an essentially positive engagement with the fiber material web, in particular with a surface contour of the fibrous material web.
  • a roller of the roller pair is designed to press the driven roller in a form-locking engagement with a surface contour of the fiber material web, in particular substantially without conveying the fibrous material conveying drive forces in the conveying direction.
  • the driven roller in particular only the driven roller, an outer contour, in particular a wavylang- ment, which is particularly adapted to a preferably wavy surface contour of the fiber material web such that contour peaks, in particular peaks, and contour valleys, in particular Wave troughs, the fiber material web substantially complementary to shape with contour valleys, in particular troughs, and contour mountains, especially wave crests, the outer contour of the driven roller come into engagement.
  • one of the rollers is designed with a substantially smooth surface, which is embodied in particular with respect to the fiber material web with low friction, preferably by uncoated aluminum.
  • the drive mechanism is provided with a control and / or regulating device which synchronizes the pivoting drive and the rotary axis roller drive.
  • the invention relates to a method and a device for laying a particular unfolded fiber material web, in particular a paper web or a corrugated paper web, such as a corrugated cardboard web, in a Leporellofaltung.
  • the fiber material web is separated from a set for Leporellofaltung fiber material web stack, in particular cut off by a horizontally mounted support plate is retracted from a passive rest position adjacent to the fiber material web stack between an upper and a lower leaflet of Fasermaterialbahnstapels, so that the fiber material web in the region of a folding edge between the upper and the lower leaflet is cut and the folded from the fiber material web stack folded sheet is placed on the support plate.
  • a device for laying a particular unfolded, endless fibrous material web in a Leporellofaltung is known for example from G 85 20 763.
  • the known device for zigzag folding an infinite material web comprises a tray, which is designed as a lowerable support rake. From the support rake, the folded fiber material web stack is transported away from the laying device.
  • a stacking mechanism is provided, which detects the unfolded fibrous material web via carrier elements and folds into a sequence of zig-zag-shaped superposed leaflets.
  • the folded fibrous material web stack is then cut from the fibrous material web by a horizontally movable table between two leaflets of Leporellostapels is retracted, with a stationary knife is arranged at the same height as the table and realized the separation process in cooperation with the table.
  • This known device and this known method have the disadvantage that the Leporellofaltung must be interrupted during the cutting and restarted, whereby a discontinuous folding operation is acceptable. It is also an object of the invention to improve the known method in that a continuous folding operation without interruption is possible.
  • the fibrous material web following the upper leaflet is folded on the support plate retracted in a cutting position for a newly added fiber material web stack, and not just on the usually underlying conveyor belt or rigid storage platform.
  • a stack forming mechanism in particular the above-mentioned Leporello folding apparatus driving mechanism for folding the unfolded fibrous material web into the fanfolding and the platen positioned in the cutting position are vertically displaceable relative to each other to provide a vertical distance between the stack forming mechanism and to keep an uppermost leaflet of the newly laid fibrous material web stack substantially constant.
  • the topmost leaflet of the newly laid fibrous material web stack is the leaflet that is closest to the stack forming mechanism.
  • the uppermost leaflet may be in direct engagement with low pressure arms which compress the superimposed leaflets.
  • the support plate is moved back horizontally from the cutting position to the rest position in order to strip and transfer an already laid fibrous material web stack to a stationary transport layer, such as a conveyor belt.
  • the return can be realized so quickly that an interruption of the Leporellofaltung does not have to go along.
  • the invention also relates to a device for laying a particular unfolded fibrous material web, in particular a paper web or a corrugated paper web, such as a corrugated cardboard web, in a Leporellofaltung.
  • the Leporello folding device comprises a transport tray, such as a conveyor belt, on which a fibrous material web stack laid for Leporello folding is laid together, in particular for its further transport away from the Leporello folding device.
  • the Leporellofaltvoriques includes a stacking mechanism for folding the unfolded fiber material web in the Leporello- folding. It should be understood that the stack forming mechanism may be formed by, for example, the above drive mechanism of the present invention.
  • the Leporellofaltvorraum has a severing device for separating the fiber material web from the fiber material web stack, wherein the separating device is formed by a horizontally mounted support plate with a knife portion.
  • the support plate can be moved so horizontally from a rest position to a cutting position for separating the fibrous material web from the fiber material web stack that the fibrous material web is cut in the region of a fold between an upper and a lower leaflet of the fibrous material web stack by the knife section and the upper leaflet on the support plate is filed.
  • the stack formation mechanism and the platen are movable relative to each other in the vertical direction such that a vertical distance between the stack forming mechanism and a topmost folded platen of a newly laid fibrous material web stack remains substantially constant.
  • the knife section is preferably positioned on an edge of the support plate facing the fibrous material web stack.
  • the blade portion and the support plate can be made of one piece, in particular a piece of metal.
  • a separately manufactured blade section can be fastened to the support plate, in particular to its underside.
  • the knife section For cutting the fibrous material web, the knife section cooperates with a stationary knife block.
  • the relative movement between the stacking mechanism and the platen is realized by the platen being stationary and the stacking mechanism mounted correspondingly for vertical plunging.
  • both can be mounted vertically adjustable.
  • the Leporellofalt listening has aconsist with at least one vertical side wall at least adjacent to a part of the fold edges of the fiber material web stack.
  • the side wall comprises a slot through which the support plate for retraction can be passed, wherein the side wall in particular vertically displaceable in synchronism with the support plate, so that the slot is always aligned with the support plate horizontally aligned.
  • the invention relates to a device for laying a particular unfolded fiber material web, in particular a paper web or a corrugated paper web, such as a corrugated cardboard web, in a Leporellofaltung.
  • the Leporellofaltvorraum comprises a tray, which is folded down for Leporellofaltung fibrous material web stack especially for its further transport away from the device, and a stack forming mechanism, which folds the fiber material web to a Leporellofaltung and in particular according to the above drive mechanism according to the invention is formed.
  • the Leporellofaltvoriques should have two Niederdschreibarme which are arranged for alternately depressing adjacent to the respective, opposite fold edges of the folded fiber material stack and substantially vertically on the Fasermate- rialbahnstapel to and from this away.
  • the two depressing arms are arranged adjacent to the respective opposing sheets of the fibrous material web stack for alternate depression and are displaceable substantially vertically toward and away from the fibrous material web stack.
  • the two low-pressure arms are operated by a drive, in particular in each case a drive, wherein in particular the drive has a continuous, driven turntable, the rotational movement is converted by a multi-joint gear in a translational reciprocating motion.
  • the Leporellofaltvorraum has a control and / or regulating device which synchronizes the pivot drive, the rotation axis roller drive, the drive for displacing the stacking mechanism and / or the shelf in the vertical direction and the / the Niederdrückantrieb / e.
  • the Leporellofaltvorraum has a position sensor for determining the rollers of a drive mechanism, in particular the pivot drive, a vertical distance and the Niederdrückarme, the position sensors are connected to a control and / or regulating device.
  • Such a corrugated paper web is used, inter alia, to be used as packaging material by being pulled in and deformed by a packaging machine in order to form as cushioning packaging material as possible.
  • Figure 1 is a perspective view of the device according to the invention for
  • Figure 2 is a schematic side view of the device according to the invention according to Figure 1 in a first operating position
  • Figure 3 is a schematic side view of the device according to the invention according to Figure 1 in a second operating position
  • Figure 4 is a schematic side view of the device according to the invention according to Figure 1 in a third operating position
  • Figure 5 is a schematic side view of the device according to the invention according to Figure 1 in a fourth operating position
  • Figure 6 is a schematic side view of the device according to the invention according to Figure 1 for separating the corrugated cardboard web from the Leporello- folding packet in a first operating position;
  • Figure 7 is a schematic side view of the device according to the invention according to Figure 6 in a second operating position
  • Figure 8 is a schematic side view of the device according to the invention according to Figure 6 in a third operating position
  • Figure 9 is a schematic side view of the device according to the invention according to Figure 6 in a fourth operating position
  • Figure 10 is a schematic side view of a pendulum drive for pivoting a pair of rollers of the stack forming mechanism
  • FIG. 11 shows a perspective detailed view of main components of the drive mechanism according to the invention.
  • Figures 12a and 12b show a cross-sectional view of a separating device in a passive or active state
  • FIG. 13 shows a schematic block diagram for a control and / or regulating device of the device according to the invention.
  • FIG. 1 shows a device according to the invention for laying an endless corrugated fiberboard web 1, which is unwound from a corrugated fiberboard web roll (not shown) or in a corrugated board production line (not shown) into a fanfolded fold, generally designated 3.
  • the corrugated cardboard web 1 has a smooth side (not shown) and a corrugated side (not shown), wherein the corrugated contour side facing the dark in Figure 1 shown rollers.
  • the laying device 3 comprises as main features a knife plate 5, a stack forming mechanism 7, a conveyor belt 9, a support frame 13 standing on a floor 11, and a roller pair feeder 14 which pulls the corrugated fiberboard web 1 away from the corrugator web roll and feeds it to the stack forming mechanism 7.
  • the corrugated cardboard web 1 is brought by the stack forming mechanism 7 in a Leporellofaltung, which represents a zig-zag folding and is placed on top of the conveyor belt 9.
  • the stacking mechanism 7 is essentially formed by a drive mechanism 8 according to the invention, which is suitable both for the feed of the corrugated cardboard web 1 as well as their folding in the Leporellofaltung is responsible.
  • the drive mechanism 8 comprises a roller pair 17 which is formed by two opposing rollers 19, 21.
  • the rollers 19, 21 define mutually parallel axes of rotation, wherein the rollers 19, 21 are rotatably mounted about their axes.
  • the rollers 19, 21 are rotatably mounted on a common side plate 16, which side plate 16 is pivoted back and forth.
  • the conveyor belt 9 is displaceable downwardly in the vertical direction V relative to the stack forming mechanism 7 to maintain a distance a between a pendulum axis P, which will be described later, and its uppermost leaflet 51 of the Leporellofaltstapels 15 formed by the stack forming mechanism 7 substantially constant.
  • the essential part of the stack forming mechanism 7 consists of the pair of rollers 17 formed by the smooth roller 19 and the corrugated roller 21.
  • the corrugated roller 21 has a peripheral outer corrugation whose corrugated contour is formed complementary to a one-sided wave contour of the corrugated cardboard web 1. In this way, a substantially slip-free feed of the corrugated cardboard web 1 to the Leporellofaltstapel 15 is possible.
  • the smooth roller 19 is driven by its own motor. However, the smooth roller 19 only serves to bring the corrugated contour of the corrugated cardboard web 1 in a form-complementary engagement with the corrugated roller 21.
  • the smooth roller 19 Since the smooth roller 19 has its own, separate drive, the corrugated board web 1 are no acceleration forces, such as frictional forces, communicated in the conveying direction of the smooth roller 19, for example, because of their inertia, so that the single feed forces of the corrugated cardboard web 1 are applied by the corrugated roller 21 , To the frictional forces between the smooth roller 19 and the To keep corrugated cardboard web 1 as low as possible, the smooth roller 19 is made of an uncoated aluminum.
  • the smooth roller 19 and the corrugated roller 21 are arranged at a constant distance from one another to form a predetermined passage gap 23, through which the corrugated cardboard web 1 extends.
  • the passage gap 23 is dimensioned such that the corrugated cardboard web 1 is always in contact with both rollers 19, 21 when passing through the passage gap 23.
  • the smooth roller 19 has the task to press the corrugated cardboard web 1 in the form-fitting engagement with the corrugated roller 21.
  • the roller pair 17 mounted on the side plates 16 is swingable back and forth about a common pendulum axis P, which extends through the passage gap 23 at equal distances from the rollers 19, 21 therethrough.
  • the pendulum axis P is located substantially in a plane defined by the corrugated cardboard sheet 1 in the passage gap 23.
  • a pendulum drive 87 (not shown) is provided, which can be controlled independently of other drives, such as the rotary drives of the rollers 19, 21, by a control device.
  • the passage gap 23 defines a discharge direction R relative to the Leporellofaltung, which is essentially defined by the tangential direction of a contact point of the corrugated cardboard sheet 1 to the respective rollers 19, 21.
  • the swivel range sector A is set such that the corrugated web 1 repels continuously from left to right and from right to left from one formed fold edge, thereby preventing too early contact of the folder being laid with the already folded stack 15.
  • the pendulum drive 87 allows the delivery direction R of the pair of rollers 17 to be pivoted back and forth within a pivoting sector A of approximately 110 °.
  • the interplay of the rocking motion and the feed of the corrugated cardboard sheet 1 realized by the corrugated roller 21 succeeds it is to remain in a structurally simple way, the corrugated cardboard web 1, the desired direction of curvature to form the Leporellofaltung.
  • a pair of depressing arms 24, 25 is provided, which can be moved in the vertical direction V on the folding stack 15 and away from it, to compress the folding stack 15 with the last-placed convolution.
  • the depressing arms 24, 25 are operated by a separate drive 33, 35, which generates a continuous rotational movement of a drive pulley 27, 29 in one direction of rotation.
  • a multi-link transmission 31, 33 serves to implement a vertical up and down movement of the depressing arms 23, 25 from the rotational movement of the drive pulley 27, 29.
  • the depressing arm 24, 25 reaches its lowest printing position when the stack forming mechanism 7 has completed a Leporellolegung on a folded edge side and is just about to pivot the corrugated cardboard web 1 on the opposite Faltkantenseite.
  • the Leporellolegung is folded exact position, whereby the last folded, top folder 51 is stationary. This fixed fixing of the uppermost folder 51 assists the mutual corrugation engagement of the stacked folders 51, 53.
  • the depressing arms extend over the entire width of the corrugated cardboard web 1 at their end facing the Leporello fold.
  • FIG. 6 to 9 show the operation of a separating device 39, which has the blade plate 5 and is to realize a separation of the corrugated cardboard web 1 of the finished Leporellofaltstapel 15.
  • the pendulum drive 87 is also shown in detail for the swinging back and forth of the pair of rollers 17, which pendulum drive 87 consists of a drive pulley 41, which via a toothed belt 43 with a Output disk 45 is connected, which has a coincident with the pendulum axis P pivot bearing axis.
  • the detailed structure of the pendulum drive 87 is shown in FIG.
  • FIG. 6 shows once more how the Leporello folding stack 15 is formed. Reached the Leporellofaltstapel 15 the desired stack height, as shown for example in Figure 7, the horizontally guided and driven blade plate 5 is performed by a formed in vertical side walls 47, 49 of the support frame 13 slot 52, 54, wherein the support frame 13 facing the end of Knife plate 5 is sharpened as a knife and is suitable for separating the Leporellofaltstapels 15 of the corrugated cardboard web 1.
  • the knife plate 5 travels between the uppermost folder 51 and the immediately underlying folder 53 and cuts the corrugated board material on the uppermost, with respect to the blade plate 5 distal folding edge 55, so that the uppermost folder 51 is placed on the retracted blade plate 5, as in the Figures 7 and 8 is indicated. Then a new Leporellofaltstapel 57 is no longer stored on the conveyor belt 9, but on the blade plate 5. In this way, the stack forming mechanism 7 can continuously continue to work during the separation process, so without having to make an interruption of the Leporellofaltung. Once the conveyor belt 9 has transported away the finished Leporellofaltstapel 15 and is free for receiving a new folding stack, the conveyor belt 9 moves to the bottom of the blade plate 5, as shown in Figure 9.
  • the knife plate 5 moves out of the support frame 13 through the slots 52, 54, whereby the new leaflet stack 57 is transferred to the conveyor belt 9.
  • the conveyor belt 9 can be tracked by the thickness of the blade plate 5 upwards so that the distance between the stationary pendulum axis P and the uppermost folder 51 remains substantially constant.
  • FIGS. 12a and 12b show the sectioning process and the cooperation of the knife plate 5 with the slot 54 and the side wall 49, respectively.
  • the knife plate 5 has on its underside a knife portion 46 which has a cutting end. The cutting end cooperates with a stationary knife block 48 fixed inwardly on the sidewall, with the knife edge passing the top of the knife block. In this case, the blade section 56 enters the slot 54.
  • the pendulum drive 87 is shown in detail, wherein a motor output shaft 61 drives the drive pulley 41 via a connecting rod 63.
  • the center-to-center distance of pivot point 65 on output shaft 61 is less than the center-to-center distance of pivot point 67 on drive pulley 41, thereby providing continuous rotational movement of output shaft 61 in a rotational direction, such as clockwise, in a rocking motion the drive pulley 41 and thus the driven pulley 45 is converted.
  • the drive pulley 41 comprises a plurality of holes 69 to 75 which form options for different articulation points 67 in order to set the transmission conversion of the pendulum drive 87.
  • FIG. 11 a different arrangement of the roller pair 17 and the pendulum axis P is shown.
  • the pendulum axis P is in contrast to the figures 1 to 9 not within the passage gap 23, but offset from the Leporellofaltung away.
  • connecting lines between the pendulum axis P and the axis of rotation of the rollers 19, 21 form an angle ⁇ , which is preferably greater than 25 °.
  • the angle ⁇ is 180 °.
  • the side plates 16 are pivotable about the pendulum axis P, wherein on the side plates 16, the rollers 19, 21 are rotatably mounted. Otherwise, the mode of operation of the roller pair arrangement according to FIG. 11 is the same as the arrangement shown in FIG. In Figure 13, a control and / or regulating device 81 is shown, which is the motor drives 83, 85 for the rollers 19, 21, the pendulum drive 87 and the Niederd Wegarmantrieben 89, 91 is connected.
  • the respective drives 83, 85, 87, 89, 91 include position sensors, which are not shown in detail. Positioning signals are fed to the control and / or regulating device 81 via corresponding communication lines, which are indicated by the arrows directed towards the control and / or regulating device 81, whereby a control routine can be executed.
  • the control and / or regulating device 81 serves to synchronize the movements of the rollers 19, 21 and thus the advance of the corrugated cardboard web 1 and the PendelHin- and -Hermony of the roller pair 17 and the movement of the depressing arms 24, 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

L'invention concerne un mécanisme d'entraînement pour un dispositif destiné à réaliser un pliage en accordéon avec une bande de matériau fibreux, en particulier non pliée, en particulier une bande de papier ou une bande de papier cannelé, telle qu'une bande de carton ondulé. Le mécanisme comprend une paire de rouleaux opposés qui forment une fente de passage pour la bande de matériau fibreux et qui définissent chacun un axe de rotation autour duquel ils tournent, en particulier lorsque la bande de matériau fibreux traverse la fente de passage. Il est prévu un entraînement de rouleau qui entraîne en rotation au moins l'un des deux rouleaux pour assurer le transport de la bande de matériau fibreux à travers la fente de passage vers l'empilement en accordéon et un entraînement oscillant qui possède en particulier un axe d'oscillation qui ne coïncide pas avec les axes de rotation. Lesdits au moins deux rouleaux sont montés oscillants de manière que les axes de rotation puissent osciller alternativement autour de l'axe d'oscillation commun.
EP10704765A 2009-02-18 2010-02-17 Mécanisme d'entraînement pour un dispositif destiné à réaliser un pliage en accordéon avec une bande de matériau fibreux Pending EP2398726A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009009517A DE102009009517A1 (de) 2009-02-18 2009-02-18 Antriebsmechanismus für eine Vorrichtung zum Legen einer Fasermaterialbahn in eine Leporellofaltung
PCT/EP2010/000998 WO2010094472A2 (fr) 2009-02-18 2010-02-17 Mécanisme d'entraînement pour un dispositif destiné à réaliser un pliage en accordéon avec une bande de matériau fibreux

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EP2398726A2 true EP2398726A2 (fr) 2011-12-28

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US (1) US9061860B2 (fr)
EP (1) EP2398726A2 (fr)
DE (1) DE102009009517A1 (fr)
WO (1) WO2010094472A2 (fr)

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CN107364188B (zh) * 2017-07-27 2023-04-28 寻乌县天源包装有限公司 一种高强度竖瓦楞纸板的连续生产系统
CN107472962B (zh) * 2017-09-11 2023-01-03 欧西玛（广州）机械有限公司 一种布料储存设备以及存储方法
TWI665149B (zh) * 2019-02-01 2019-07-11 全利機械股份有限公司 Folding mechanism of fiber products and stacked fiber products thereof
CN110422684B (zh) * 2019-07-17 2023-01-17 上海骄成超声波技术股份有限公司 一种用于金属薄膜条的对折机构
CN113879900B (zh) * 2021-09-01 2024-06-07 浙江常鑫纺织品有限公司 一种全涤泡泡皱透气面料生产用堆叠装置
CN116443369B (zh) * 2023-04-27 2023-11-03 广州探索技术有限公司 一种无纺布自动折叠机
CN116409504A (zh) * 2023-06-12 2023-07-11 常州凯得新材料科技有限公司 一种薄膜包装机用折叠机构

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Also Published As

Publication number Publication date
US9061860B2 (en) 2015-06-23
WO2010094472A3 (fr) 2011-02-17
US20110306482A1 (en) 2011-12-15
DE102009009517A1 (de) 2010-08-19
WO2010094472A2 (fr) 2010-08-26

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