EP2605988A1 - Drive mechanism for a device for laying a fibrous material web in a leporello fold - Google Patents
Drive mechanism for a device for laying a fibrous material web in a leporello foldInfo
- Publication number
- EP2605988A1 EP2605988A1 EP11735392.0A EP11735392A EP2605988A1 EP 2605988 A1 EP2605988 A1 EP 2605988A1 EP 11735392 A EP11735392 A EP 11735392A EP 2605988 A1 EP2605988 A1 EP 2605988A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leporellofaltung
- material web
- drive
- pendulum
- passage gap
- 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.)
- Granted
Links
- 239000002657 fibrous material Substances 0.000 title claims abstract description 93
- 230000007246 mechanism Effects 0.000 title claims abstract description 60
- 239000000123 paper Substances 0.000 claims abstract description 48
- 239000011111 cardboard Substances 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims description 32
- 230000000881 depressing effect Effects 0.000 claims description 28
- 244000007853 Sarothamnus scoparius Species 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000009499 grossing Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 17
- 238000011161 development Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 206010040954 Skin wrinkling Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920006362 TeflonĀ® Polymers 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011096 corrugated fiberboard Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002789 length control Methods 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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
- B65H45/107—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by means of swinging or reciprocating guide bars
-
- 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
- B65H2701/177—Fibrous or compressible material
Definitions
- the invention relates to a drive or folding mechanism for a device for laying a particular unfolded fiber material web, in particular a paper web, a corrugated paper web or a corrugated cardboard web, in a Leporellofaltung.
- a wave train is often used for packaging purposes, for example, by laying apart corrugated cardboard 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 web may also be formed by a plurality of superimposed flat and / or corrugated paper layers to increase the buffering property of the packaging material.
- the cuboid Leporellofaltstapel has over the cylindrical Aufwickelrolle the advantage of a space-saving storage, because on the one hand a higher material density is achieved due to the Leporellofaltung that the respective wave-valley form of opposing folding layers can interlock, and on the other hand, the cuboid Leporellofaltstapel simple and raumaus slaughterd and can be stacked next to each other.
- the Leporellofaltung when pulling or unfolding the fiber material web of the wound roll or from the Leporellofaltstapel the Leporellofaltung has the advantage that the unfolding Leporellofaltung stationary and not, as opposed to the role, during the development soubucht a rotary motion, which requires special storage properties and a Bachtenraum working .
- these are provided on rolls at the end of the production process, so that the creation of a Leporello folding stack would first have to be unwound from the rolls and then brought to the Leporello fold.
- a device for laying a particular unfolded, endless fibrous material web in a Leporellofaltung is known from DE 196 44 383 Cl.
- the Leporellofaltvorraum has formed a drive mechanism in the form of a translationally reciprocable conveyor belt pair with two vertically arranged drive belt.
- the vertically oriented drive belts are moved back and forth in the horizontal direction translationally.
- DE 196 64 858 discloses a drive mechanism for a Leporellofaltung in which a draw roller peels off the web.
- the draw roller is fixedly mounted on the support frame of the device of the Leporellofaltvorraum.
- a drive mechanism for the device for laying a particular unfolded fiber material web in particular a paper web and a corrugated paper web, such as a corrugated cardboard web, provided in a Leporellofaltung.
- the drive mechanism comprises a pivotally mounted pair of opposing rollers which form a passage gap for the material fiber material web and in particular for conveying the fiber material web through the passage gap are rotatable. It is this pair of rollers, which should oscillate back and forth by a drive for pivoting the pair of rollers.
- the passage gap defines an exit discharge direction of the fiber material web in the conveying direction away from the passage gap, which can be defined in particular by mutually parallel tangents at the smallest passage of the passage gap.
- the outlet discharge direction for the fiber material web defined by the passage preferably oscillates back and forth about a vertical.
- it can pass through a pendulum means passage position in the vertical while pendulum outer reversal positions laterally limit the pendulum amplitude of the roller pair, in particular the outlet output direction.
- a device which oscillates back and forth with the pair of rollers is arranged downstream of the passage for guiding the fiber material web toward the fan-fold unit.
- the guide is to be able to oscillate with the pair of rollers back and forth firmly attached to this.
- the guide device according to the invention is designed to minimize the forces to be applied to the material web for guiding and guiding following the passage gap, but to ensure a controlled precise, horizontal positioning of each folding of the fanfold folding stack.
- the baffle mainly exerts guide pressure forces against the forces acting horizontally toward the center of the Leporello folder, thus preventing the card from folding.
- the guide device has a driver, in particular two opposite drive plates or rods arranged in particular parallel to one another.
- the driver limits a receptacle for a fiber material web leaving the passage gap in both pendulum directions, so that the fiber material web is entrained in the respective pendulum direction when passing through the receptacle. In this way, the desired tensile stress of the fiber material web is communicated when the fiber material web is pulled slightly from the last folding performed to the opposite side.
- the driver be designed as a Mit NOTEstange, can be quite a space between the pair of rollers and the Mit NOTEstange. It is not necessary to provide a full-surface guide between the passage gap and the driving rod continuously.
- plates arranged parallel to one another can be provided, which provide a continuous guidance from a passage gap to the discharge end of the driver plate.
- the driver is designed to keep the free discharge end in the reciprocating motion substantially on a horizontal and / or in a horizontal plane.
- a length of the driver in the outlet discharge direction is preferably continuously adjustable, in particular during the reciprocating movement, so that preferably a free end of the carrier during the reciprocating movement extends substantially on a horizontal or in a horizontal plane.
- the driver can do so be designed, a vertical distance of a free end of the driver remains substantially constant to the last formed fold position of the Leporellofaltung. It was found that with the adjustment of the length or the distance of the delivery end of the driver towards the passage gap and / or the Leporellofaltung a significantly increased conveying speed for the fiber material web is possible to precisely set the Leporellofaltung.
- the drive mechanism has a distance adjustment, in particular regulation, which adjusts or regulates a distance in exit discharge direction between the guide, in particular the driver, and the passage gap preferably in dependence on a pivot position of the exit direction and / or a conveying speed of the fiber material web Preferably, such that the distance is maximized at the pendulum outer reversal position and / or is minimized at a pendulum means passage position.
- the guide device has a preferably extending in the exit direction guide shaft, in particular in extension of the passage gap and / or constant width.
- the length of the guide shaft in the outlet discharge direction can preferably be adjustable from the passage gap to a free end of the guide device. The length to be set may depend on the pendulum position and / or a conveying speed of the fiber material web.
- a scraper can be firmly attached in order to lift the fiber material web, in particular a leading edge end of the fiber material web, as gently as possible from the drive roller and thread it into the guide shaft. In this case, the scraper can rest against the roller pair.
- the guide device comprises a telescopic mechanism with a stationary part connected to the pair of rollers base part and a particular in exit discharge direction with respect to the base part back and forth movable Verfahrteil.
- the traversing part may have a smaller dimension in order to be able to enter the base part with the correspondingly larger internal dimensioning. It is clear that the Verfahrteil can be designed to accommodate the base part movable in itself.
- An extension and retraction movement of the Verfahrteils with respect to the base member may be determined by means of a preferably arcuate scenery, which is stationary, in particular firmly a support frame of the device can be attached.
- a sliding block fixedly mounted on the displacement part can engage in the slot, so that in particular in both pendulum reversal positions, the extension part is brought into the furthest extended position.
- the extension member may be brought into the shuttle center passage position in the furthest retracted position of the travel member relative to the base member.
- the guide which may be formed of a rigid material, in particular at one end of the extension, a flexible device, in particular a broom with substantially parallel to the exit direction extending bristles for smoothing a zuoberst laid position arranged the Leporellofaltung.
- the broom in the transverse direction of the fiber material web may have a comb shape with projecting barbs each having a plurality of broom bristles, wherein the brooms are separated by substantially equal intervals.
- the invention also relates to a drive mechanism for a Leporellofaltvomchtung comprising the pivotally mounted pair of opposing rollers which form the passage gap for the fiber material web and in particular are rotatable when conveying the fiber material web through the passage gap.
- the drive mechanism according to the invention has a pivot drive, by means of which the pair of rollers is pivotable, so that a discharge discharge direction defined by the passage gap preferably oscillates back and forth about a vertical.
- the pivoting drive may preferably be realized by a connecting rod drive, wherein in general a continuous rotational movement, in particular of a drive transmission part, such as a drive pulley, is converted into a pivoting movement, preferably of the roller pair.
- the connecting rod drive has a drive pulley, to which a connecting rod is articulated, which in turn is coupled to a driven only a pivoting drive pulley, which can oscillate the roller pair.
- the connecting rod drive has a kinematic dead center, in particular in the case of the two pivot outer reversal positions, in which the pivoting angular speed of the driven pulley is negligibly small.
- the pivot drive is coupled with a device for adjusting, in particular rules, the drive angular velocity, in particular the drive pulley operatively.
- the adjustment means is adapted to adjust the drive angular velocity in response to a pivotal position of the exit discharge direction.
- the setting can be determined such that in the area of the pendulum outer reversal position, in particular on reaching the pendulum outer reversal position and / or leaving the pendulum reversal position, a higher drive angular velocity of the drive pulley, preferably the highest pendulum drive angular velocity with respect to the total reciprocating motion is set.
- a lower pendulum drive angular velocity in particular the lowest drive angular velocity of the drive pulleys with respect to the total reciprocating movement of the discharge discharge direction, can be set.
- the drive mechanism according to the invention for a Leporellofaltvorraum has a pivotally mounted pair of rollers which form the passage gap for the fiber material web, and in particular in conveying the fiber material web through the passage gap are rotatable.
- the drive mechanism has a roller drive which rotatably drives at least one of the two rollers for conveying the fiber material web through the passage gap toward the fanfold.
- the drive mechanism has a pivot drive, by means of which the roller pair can be pivoted in such a way that an exit discharge direction defined by the passage gap preferably oscillates back and forth about a vertical.
- the roller drive which communicates rotational forces to at least one roller about its axis of rotation in order to drive the fibrous material web, is operatively coupled to a control and / or regulation of an angular speed of the at least one driven roller.
- the control or regulation is designed to adjust the angular velocity as a function of a pivot position of the exit direction.
- the setting of the angular velocity in such a way be designed that the angular velocity of the driven roller in the range of a pendulum outer reversal position of the exit discharge direction, in particular on arrival at the pendulum outer reversal position and / or on leaving it is set smaller, especially lowest with respect to the total reciprocating motion.
- the angular speed of the driven roller in the region of the pendulum means passage position of the outlet discharge direction may be greater, in particular largest, with respect to the total reciprocating movement.
- the invention relates to a Leporellofaltvorraum with a tray on which a set for Leporellofaltung fiber material web stack is folded away in particular for its further transport away from the device. Furthermore, the Leporellofaltvoriques has a Leporellofaltmechanismus that brings the fibrous material web in a Leporellofaltung and in particular one of the above-mentioned subject matter relating to the drive mechanism may have.
- the Leporellofaltvoroplasty invention has a means for depressing the Leporellofaltung particular adjacent their respective end alloyfaltrand, wherein the depressing device in particular in the vertical direction between a Druckeingriffsposition in which the depressing the Leporellofaltung depressing wrinkles, and a release position is movable, in which the depressing the Leporellofaltung releases. Furthermore, the Leporellofaltvoroplasty invention has a retaining device, which prevents the Leporellofaltung because of their elastic restoring forces at least partially to a deployment when the depressing device is in the release position or there.
- the scaffoldJialt raised is in particular substantially in the horizontal direction between an active position, in the retaining device prevents the Leporellofaltung at a deployment and a passive position in which the retainer releases the Leporellofaltung.
- the depressing device and the retaining device are structurally matched to one another in such a way that they engage the Leporello folding in the width direction of the Leporello folding essentially at the same point adjacent to the respective fold.
- the depressing device has a comb structure, which is formed in particular by a preferably regular sequence of coming into pressure contact with the Leporellofaltung, in particular blunt pressure tines and clearances between the pressure tines.
- the retaining device has a comb structure, which is preferably formed by a particularly regular sequence of the particular with the Leporellofaltung in retaining contact coming, in particular blunt retaining tines and recesses between the retaining tines.
- the retaining prongs may each have a horizontal extension for forming a retaining contact surface, which preferably extends substantially parallel to the position of the Leporellofaltung, in particular the top suppressed position of the Leporellofaltung, and / or at least in the active position substantially horizontally.
- the comb structure and the comb structure of the depressing device or the retaining device may be configured such that can interlock, in particular the retaining tines in the free spaces and retract, especially when the retainer or the pressing device in the active position or in the pressure-engaging position are.
- the extension may be dimensioned such that it protrudes laterally in the active position in the width direction of the Leporellofaltung on the respective fold.
- the depressing device has an axisymmetric arrangement in the width direction, in particular to the central axis of the Leporellofaltung of a left and a right NiederdrĆ¼ckstempel in particular for alternately depressing the Leporellofaltung.
- the retaining device has an axisymmetric arrangement, in particular to a central axis of the Leporello fold in the width direction, of a left and right retaining arm or foot, in particular for alternately obstructing the Leporello fold at the deployment.
- travel kinematics in particular the gear and / or linkage systems
- the retaining device and the depressing device are coordinated, in particular synchronized, that a respective left or right NiederdrĆ¼ckstempel go to the release position when a respective left or right retaining arm, the active Position taken.
- a respective left or right retention arm moves to the active position, if a respective left or right Niederdschreibstempel still in the Print engagement position is.
- the invention relates to a particular embodiment of at least one of the two rollers of the roller pair, which is driven to realize the conveyance through the passage gap.
- At least one of the rollers has in its entirety an array of parallel grooves which are preferably shaped according to the corrugation of the fibrous material web.
- the grooves extending parallel and in the longitudinal direction of the roller essentially have a sequence of identical groove dimensions.
- the groove arrangement is divided into several equal sections, the sections being interrupted by a depression.
- These recesses or recess runs completely around the roller and in particular has a substantially constant width in the circumferential direction.
- a scraper can constantly intervene. The scraper serves to lift the fibrous material web on leaving the passage gap of the drive roller, so that the fiber material web can reach as resistance as possible, in particular in the guide.
- the drive mechanism which may also be referred to as a folding mechanism for a device for laying a particularly unfolded fibrous material web, in particular a paper web or a corrugated paper web, such as a corrugated fiberboard web, in a fanfold configuration, comprises at least the pair of opposing rolls.
- 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 at least one of the two rollers for conveying the fiber material web through the passage gap formed by the rollers through to the Leporellostapelung, and a pivot drive has in particular a not coincident with the axes of rotation pendulum axis.
- 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. It is possible to significantly reduce the dimension, in particular of the drive mechanism and thus of the entire Leporellofaltvoriques, especially in the vertical direction regardless of the desired width of the Leporellofaltung to be laid.
- 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 Ā°, 30 Ā°, 45 Ā° or 60 Ā°, preferably approximately equal to 180 Ā°.
- 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 Ā° and at least 20 Ā°, preferably between 60 Ā° and 140 Ā°, go through.
- the pivoting angle sector thus comprises two maximum angular positions, which can be at most 90 Ā° and at least 10 Ā° with respect to the vertical direction.
- the discharge direction is pivoted by 45 Ā° to 75 Ā° 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 Schwerikwinkelsektor can be adjusted depending on a distance of the passage gap for storage, in particular to an uppermost leaflet 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 such that when laying the fiber material web in the Leporellofaltung a defined by the passage gap discharge direction for the fiber material web towards a folding end of the fiber material web stack has to form at the next Leporellofalte the Leporellofaltung is.
- the dispensing direction by parallel tangential directions opposite each other in the shortest distance Be defined circumferential points of the rollers, in particular, the circumferential locations are determined in particular by contact points of the fiber material web on the rollers.
- the drive mechanism without further roller, without any further mechanical engagement on the fiber material web, formed 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 eccentric to a rotational axis of the drive pulley Abretesanlenkstelle and articulated via an axis of rotation of the drive shaft eccentric Antriebsanlenkstelle on 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 Abretesanschstelle on the drive pulley is adjustable, in particular provided several Abretesanschstellen 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 wave-shaped outer corrugation, which is in particular adapted to a preferably wavy surface contour of the fiber material web such that contour mountains, in particular wave crests, and contour valleys, in particular troughs, the fibrous material web substantially complementary to shape with contour valleys, in particular troughs, and contour mountains, in particular 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 pivot drive and the rotation 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.
- Figure 2 is a side view of the drive mechanism of Figure 2;
- Figure 3 is a plan view of the drive mechanism of Figure 1;
- Figure 4 is a cross-sectional view of the drive mechanism according to the invention in the shuttle center passage position taken along section line IV-IV;
- Figure 5 is a cross-sectional view of the drive mechanism of Figure 4 in the right pendulum turn-up position;
- Figures 6a - 6d the entire drive mechanism in four different pendulum positions;
- Figure 7 is a graph of pendulum drive angular velocity based on a plot of angular position versus time
- Figure 8 is a graphical representation of the angular velocity of the driven roll by means of a plot of the angular position versus time
- Figure 9a -9d is a side view of the Leporellofaltvoroplasty invention in four operating positions to form the Leporellofaltung in four folding steps;
- Figure 10 is a partial perspective view of the invention
- FIGS. 1 to 6 show the drive mechanism according to the invention and its mode of operation.
- the drive mechanism according to the invention is generally provided with the reference numeral 1.
- the drive mechanism 1 serves both to withdraw the fibrous material web (not shown in detail) and the corrugated paper web from a supply roll (not shown) and to transfer the corrugated paper web into a Leporello fold 3, as indicated in FIGS.
- the drive mechanism has a pair of rollers consisting of two opposing rollers 5, 7, wherein in particular only the corrugated roller 5 is driven.
- the roller 7 is also driven and synchronized with the corrugated roller 5, but may also be free-standing.
- the rollers 5, 7 define mutually parallel axes of rotation.
- the rollers 5, 7 are rotatably mounted about their axes of rotation.
- the rollers 5, 7 are rotatably mounted on a common support structure or support plate 11, wherein the support structure 11 together with the rollers 5, 7, as shown in Figures 4 and 5, is 29enkbar about a pivot axis and reciprocable in the Area of a passage gap 13 parallel to the axes of rotation of the Rolls 5, 7 is located.
- the corrugated paper web is oriented substantially vertically in the vertical direction V downwards relative to a Leporello folding stacker (not shown in more detail), whereby a defined Leporello fold 3 can be realized by a reciprocating movement of the pair of rollers 5, 7.
- the corrugated roller 5 has a peripheral outer corrugation whose corrugated contour is complementary in shape to a one-sided or bilateral wave contour of the corrugated paper web. In this way, a substantially slip-free feed of the corrugated cardboard web to the Leporellofaltung 3 through the passage gap 13 can be achieved.
- the corrugated drive roller 5 which is continuously driven in rotation by an electric motor, not shown.
- external corrugation is subdivided into a plurality of in particular equally large outer corrugated sections, wherein adjacent outer corrugations are separated by a peripheral recess into which a stripper protrudes in order to lift the corrugated paper web from the drive roller 5.
- the smooth roller 7 may be continuously rotationally driven by an electric motor not shown in detail and a corresponding control and / or regulation.
- the smooth roller 7 serves to bring the wave contour of the corrugated paper web in the form complementary engagement with the corrugated drive roller 5 and to hold there.
- the surface of the smooth roller 7 may be coated with a friction material such as TeflonĀ®.
- TeflonĀ® a friction material
- the smooth roller 7 and the corrugated drive roller 5 are arranged at a constant distance from each other to form the predetermined passage gap 13.
- the passage gap 13 is dimensioned such that the corrugated paper web when passing through the passage gap 13 is always in contact with both rollers 5, 7.
- the support structure 11 together with the rollers 5, 7 is pivoted back and forth about the common pendulum axis, wherein the pendulum axis extends at equal distances from the rollers 5, 7 through the passage gap 13.
- the pendulum axis lies substantially in a plane defined by the waveboard paper web in the passage gap 13.
- a pendulum drive 15 is provided, which is formed by an electric motor (not shown) and a pulley-connecting rod transmission.
- the passage gap 13 defines an exit discharge direction A, which is aligned parallel to the opposite roller tangents in the region of the shortest distance of the opposing rollers 5, 7 in the passage gap 13.
- a swivel area sector is set such that the corrugated paper web moves continuously from left to right and right to left from a formed folding edge of the fanfolding unit 3.
- the swing sector may be greater than 90, preferably about 110 degrees.
- the guide 17 comprises a base plate portion 21, the passage gap side has an end funnel-shaped scraper 23 which conforms in the region of the circumferential recess 10 substantially tangentially to the respective roller 5, 7, to lift the corrugated paper web from the drive roller.
- the base plate part 21 comprises two parallel spaced plates defining therebetween a guide shaft 25 for the corrugated paper web. The base plate part 21 is fixedly secured to the support structure 11.
- the guide 17 comprises a telescoping movable relative to the base plate member 21 Verfahrplattenteil 31 which is translationally on the base plate member 21 in exit discharge direction A back and forth and which consists as well as the base plate member 21 of two parallel spaced plates between define the guide shaft 25 for the corrugated paper web.
- the distance of the plates of the Verfahrplattenteils 33 is greater, so that the process plate part 33rd can be translationally moved over the base plate member 21 to form a telescopic mechanism.
- a sliding block 33 is provided on the outside of the movement plate part 31, which is guided in a frame fixed frame 35 to a matched with respect to the pivotal position reciprocating movement of the Verfahrplattenteils 31 relative to the base plate part 21 to realize.
- the travel plate part 31 lengthens the guide shaft 25, as a result of which an extended guiding property towards the Leporello folding 3 is realized.
- Glattstreich inflammation 37 in the form of a comb-shaped brush structure with opposing broom sections, as shown in Figures 1 and 3, arranged, which come in an immediate sweeping contact to an uppermost folded position of the Leporellofaltung 3 can, as indicated in the figures 9.
- the telescoping mechanism of the guide 13 is set such that the free end of the screed 37 extends substantially in a horizontal plane when the guide 17 oscillates from left to right and back to form the Leporellofaltung 3. It is ensured in this way that a guide-free distance between Leporellofaltung 3 and the drive mechanism 1 remains as short as possible and that a smooth sliding function as long as possible on the uppermost layer of the Leporellofaltung 3 is.
- Verfahrplattenteil 31 is brought in the most extended position in the pendulum turn-out position following the slightly arcuate and substantially horizontal slide 35, as shown in Figure 5 can be seen.
- the furthest retracted position is shown in Figure 4, namely, when the exit discharge direction A coincides with a vertical V, that is, the pair of rollers 57 passes through the shuttle center passage position.
- the adjustment of the length of the guide shaft 25, the distance of the free end of the guide 17 to the Leporellofaltung 3 and / or the distance of the free end of the guide 17 to the passage gap 13 depends in the embodiment of the Figures 4 and 5 from the pivot position of the roller pair 5, 7 from. It is clear that other control parameters, such as the conveying speed, for distance control and the guide shaft length control can be used. It is clear that this distance control can also be realized continuously and depending on the operation, ie without a fixed backdrop.
- the pulley-connecting rod transmission is realized by a plurality of drive pulleys, wherein an engine-side drive pulley 41 via a connecting rod 43 drives a first pulley 45 which is in engagement with a driven pulley 47 via the belt 49 to the To realize reciprocating motion of the pair of rollers 5, 7.
- the pendulum drive according to FIGS. 6a to 6b is designed to convert a continuous rotational movement of the drive disc 41 into a reciprocating movement of the drive pulley 47 and thus of the roller pair 5, 7.
- the connecting rod 43 is slightly shorter than the center axis distance between the drive pulley 41 and the first pulley 45 executed.
- FIG. 6a the vertical pendulum means passage position is shown.
- position 2 the left pendulum outer reversal position is shown, while FIG. 3 shows the pendulum midway position again.
- Figure 4 the right pendulum outer reversal position is shown.
- the angular velocity of the pendulum drive from the shuttle center passage position is negligibly small and gradually increases reached in position 2, the highest angular velocity. In this way, it is ensured that the exit discharge direction A does not remain in the reversing position for too long, but is accelerated back out of it into the passing position.
- FIG. 8 shows the angular velocity profile for the rotating rolls 5, 7. Again, the angular velocity is adjusted depending on the position of the pendulum motion.
- the angular velocity is highest at positions 1, so that the corrugated paper stock is most rapidly conveyed toward the leporello-fold to meet higher material requirements.
- the angular velocity decreases significantly from position 1 to position 2 and essentially reaches a minimum at position 2. From position 2 the angular velocity increases again and reaches its maximum in position 3, from where the angular velocity gradually decreases again and the minimum in position 4 reached. From position 4 to 1, the angular velocity increases again significantly.
- the angular position profiles in particular the angular velocity profiles, run in opposite directions and are coordinated so that fewer corrugated paper web material is provided in positions 2 and 4 and the positions are left faster, with positions 1 and 3 more corrugated paper web material is provided and the positions are left more slowly. It turned out that with above Angular speed settings can be achieved a precise and uniform Leporellofaltung even with regard to higher conveying speeds, which can be over 40 or 50 m / min.
- a pair of left and right low pressure punches 51, 53 are provided for a Leporello folding device 50 according to the invention, which feeds onto the Leporello fold 3 essentially in the vertical direction V. can be relocated from this path.
- the press-down punches 51, 53 may extend over the entire width of the corrugated paper web.
- the depressing punches 51, 53 are operated by a separate drive 55, which provides a continuous rotational movement of a drive pulley in only one direction of rotation.
- a multi-link transmission serves to implement a vertical up and down movement of the press-down punches 51, 53 from the rotational movement of the drive pulley.
- the press-down punch 51, 53 has a pressure-engaging position in which the Leporellofaltung for folding suppresses, and a release position in which the NiederdrĆ¼ckstempel 51, 53, the Leporellofaltung 3 releases.
- the low-pressure punch comprises a comb structure 6 of a plurality of blunt stamp tines 63 arranged in a row, with adjacent punch tines 63 being separated at regular intervals by recesses.
- the Leporello folding device has a retainer in the form of a pair of left and right retention feet 67, 69, each having a substantially horizontally extending finger assembly.
- the horizontal finger arrangement is dimensioned such that they can enter and exit the recesses of the comb structure 61 of the press-down punches 51, 53.
- the retaining device is connected to a drive device (not shown in more detail), which enables a substantially horizontal pivoting in and out of the respective retaining foot.
- the retaining foot is dimensioned such that it partially protrudes beyond the leporello fold edge.
- the retaining device serves to prevent unfolding of the Leporellofaltung then, when the NiederdrĆ¼ckstempel 51, 53 away from the respective side of the Leporellofaltung.
- the retainer has a Active position in which it prevents the Leporellofaltung 3 from unfolding, and a passive position in which it releases the Leporellofaltung 3.
- the press-on punches and the retaining device can be structurally coordinated with one another in such a way that they come into contact with the Leporello folding in the width direction of the Leporello folding substantially at the same position adjacent to the respective fold.
- the depression punches and the retaining device have an axisymmetric structure to a vertical axis V.
- both the restraint device and the low-pressure device each have independent travel kinematics that are coordinated with one another.
- the respective left or right depressing punch should be moved into the release position if a respective left or right retaining foot has assumed the active position.
- a respective left or right depressing punch is still in the pressure-engaging position, a respective left or right retaining leg moves to the active position.
- at least one of the four left and right retention feet and depression punches is in the active or pressure engagement position.
- the guide 17 is just about to pull the corrugated paper web from left to right from the just implemented folding edge, at the same time the coater 37 smoothes the underlying layer and the left retaining foot 69 keeps the Leporellofaltung 3 stable.
- the left depressing punch 53 is about to press down on the Leporellofaltung to apply a folding force thereon and thereby introduce an irreversible fold in the corrugated paper web.
- the press-down punch exerts a pressing force in its pressure-engaging position, as shown in FIG. 9b, the retaining foot 69 must first be swung out of its active position.
- FIG. 9a the guide 17 is just about to pull the corrugated paper web from left to right from the just implemented folding edge
- the exit discharge direction A is located exactly in the vertical V, that is to say in the shuttle center passage position, the left depression punch 53 communicating the pressing force of the Leporello folding 3 in its pressure engagement position. Then there is no need for the left retention leg 69 to be in the active position and to be swung out.
- the right NiederdrĆ¼ckstempel 51 has come into the release position, the right gearhaltefuĆ 67 prevents the Leporellofaltung in unfold. Due to the flat shape of the horizontal finger assembly and its external mounting, the upper layer of the Leporellofaltung 3 can easily be placed on the finger assembly without the right retaining foot 67 must be moved to the passive position, which is shown in Figure 9c.
- the right depressing punch 51 is brought into the pressure engaging position to produce the fold.
- the right retaining foot 67 can remain in the active position, and the left depressing punch 53 can be brought to the release position, while the left retaining foot still holds the Leporellofaltung 3 down.
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL11735392T PL2605988T3 (en) | 2010-08-19 | 2011-07-20 | Drive mechanism for a device for laying a fibrous material web in a leporello fold |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010034838 | 2010-08-19 | ||
DE102011011659A DE102011011659A1 (en) | 2010-08-19 | 2011-02-18 | Drive mechanism for a device for laying a fiber material web in a Leporellofaltung |
PCT/EP2011/003645 WO2012022412A1 (en) | 2010-08-19 | 2011-07-20 | Drive mechanism for a device for laying a fibrous material web in a leporello fold |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2605988A1 true EP2605988A1 (en) | 2013-06-26 |
EP2605988B1 EP2605988B1 (en) | 2021-01-06 |
Family
ID=45557447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11735392.0A Active EP2605988B1 (en) | 2010-08-19 | 2011-07-20 | Drive mechanism for a device for laying a fibrous material web in a leporello fold |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2605988B1 (en) |
DE (1) | DE102011011659A1 (en) |
DK (1) | DK2605988T3 (en) |
ES (1) | ES2861098T3 (en) |
HU (1) | HUE054127T2 (en) |
PL (1) | PL2605988T3 (en) |
WO (1) | WO2012022412A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009009517A1 (en) * | 2009-02-18 | 2010-08-19 | Sprick Gmbh Bielefelder Papier- Und Wellpappenwerke & Co. | Drive mechanism for a device for laying a fiber material web in a Leporellofaltung |
CN114602253B (en) * | 2016-12-20 | 2024-05-31 | čå·åøč£äø°ēÆäæē§ęęéå ¬åø | Bag body forming device of dedusting filter bag |
CN110589138A (en) * | 2019-10-29 | 2019-12-20 | å®ęéŗ¦čæŖē§ęŗēµč®¾å¤ęéč“£ä»»å ¬åø | Disposable apron folding equipment |
CN114834952A (en) * | 2022-05-13 | 2022-08-02 | å®å¾½ēæå°č¶äæ”ęÆē§ęęéå ¬åø | Medical tablecloth folding device |
CN115042415B (en) * | 2022-06-10 | 2023-06-16 | äøčåøä¹čŖäŗéęŗę¢°ęéå ¬åø | Folder folding equipment and folding method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2643878A (en) * | 1950-08-14 | 1953-06-30 | Uarco Inc | Folding machine for continuous strips of stationery |
DE3500766C2 (en) | 1985-01-11 | 1986-11-13 | Jos. Hunkeler AG, Fabrik fĆ¼r graphische Maschinen, Wikon | Device for the production of individual stacks consisting of a material web folded in a zigzag shape |
US4846454A (en) * | 1988-02-22 | 1989-07-11 | Th Stralfors Ab | Method and apparatus for folding, stacking and separating continuous forms in a moving web |
US5149075A (en) * | 1991-01-15 | 1992-09-22 | Roll Systems, Inc. | Apparatus for separating folded web |
DE19644383C1 (en) | 1996-10-25 | 1998-04-30 | Kortec Gmbh | Device and method for laying tape or strip material |
JPH11255423A (en) * | 1998-03-10 | 1999-09-21 | Taiyo Kikai Seisakusho:Kk | Folding method and device for continuous paper |
JP2002173264A (en) * | 2000-12-07 | 2002-06-21 | Ishikawajima Sangyo Kikai Kk | Continuous paper zigzag folding device for printer |
DE102006010069A1 (en) * | 2006-03-04 | 2007-09-06 | Rosink Gmbh + Co Kg | Device for depositing strip material |
-
2011
- 2011-02-18 DE DE102011011659A patent/DE102011011659A1/en active Pending
- 2011-07-20 EP EP11735392.0A patent/EP2605988B1/en active Active
- 2011-07-20 ES ES11735392T patent/ES2861098T3/en active Active
- 2011-07-20 PL PL11735392T patent/PL2605988T3/en unknown
- 2011-07-20 WO PCT/EP2011/003645 patent/WO2012022412A1/en active Application Filing
- 2011-07-20 DK DK11735392.0T patent/DK2605988T3/en active
- 2011-07-20 HU HUE11735392A patent/HUE054127T2/en unknown
Non-Patent Citations (1)
Title |
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See references of WO2012022412A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012022412A1 (en) | 2012-02-23 |
DE102011011659A1 (en) | 2012-02-23 |
EP2605988B1 (en) | 2021-01-06 |
PL2605988T3 (en) | 2021-10-25 |
ES2861098T3 (en) | 2021-10-05 |
DK2605988T3 (en) | 2021-04-12 |
HUE054127T2 (en) | 2021-08-30 |
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