EP2202160A1 - Procédé et dispositif de fixation de couvercles sur un rouleau de matériau - Google Patents

Procédé et dispositif de fixation de couvercles sur un rouleau de matériau Download PDF

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Publication number
EP2202160A1
EP2202160A1 EP09172313A EP09172313A EP2202160A1 EP 2202160 A1 EP2202160 A1 EP 2202160A1 EP 09172313 A EP09172313 A EP 09172313A EP 09172313 A EP09172313 A EP 09172313A EP 2202160 A1 EP2202160 A1 EP 2202160A1
Authority
EP
European Patent Office
Prior art keywords
pressing
abutment
contact pressure
web
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09172313A
Other languages
German (de)
English (en)
Inventor
Josef Nelles
Sven Marquardt
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.)
Voith Patent GmbH
Original Assignee
Voith Patent 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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP2202160A1 publication Critical patent/EP2202160A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • B65B25/146—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging rolled-up articles
    • B65B25/148—Jumbo paper rolls

Definitions

  • the invention relates to a method for attaching end caps on a front side of a roll of web material by means of at least one pressing element of a device for attaching end covers to web rolls, wherein the contact element applies the end cover under pressure against the end face of the web roll.
  • the invention further relates to a device for attaching end caps on a front side of web rolls with a roller bearing device with at least one movable in the longitudinal direction of the roller bearing device relative to the end face of the web roll pressing element and at least one Packpressenantrieb.
  • end covers in particular outer end covers on the front sides with material web rolls wrapped with packaging material, in particular for attachment to folding edges formed by the envelope and an inner end cover fixed in the axial direction by the folding edges
  • These comprise at least one pressing element, which is movable relative to the end face of the roll of web material and can be pressed against it, wherein the end cover arranged therebetween is glued to the peripheral packaging, in particular the projecting fold edges.
  • the individual end caps are applied to the contact pressure, possibly additionally heated and pressed against the roller end face.
  • the pressing elements are designed plan and are generally aligned plane-parallel to the end face of the web roll relative to this moved and approached to this.
  • At least two such pressing elements are provided per device, which can be assigned to the individual end faces of the material web roll directed away from one another.
  • the pressing elements at an angle to the end face of the web roll in a forward movement and fold for the purpose of Anpressvorganges, that is, from the inclined position in a plane-parallel position to transfer to the front page.
  • Anpressvorganges that is, from the inclined position in a plane-parallel position to transfer to the front page.
  • a contact pressure force is applied to the end face of the material web roll with the entire pressure surface formed on the contact pressure element, so that a surface pressure is generated over the entire surface covered by the contact surface.
  • very large contact forces are required.
  • the contact pressure of the contact surface can be realized by different drive concepts. These are characterized either by a separation of functions for the realization of the feed movement and the generation of the contact force or free of such a separation of functions, in the latter case, the contact force is applied by the means for generating the feed movement of the pressing with, which in total very high drive power required leaves.
  • a device for fastening end caps on the end faces of web rolls which comprises a roller bearing device, at least one movable in the longitudinal direction of the roller bearing means pressing element in the form of a pressure plate and a drive, the pack press drive in a feed drive, which carries the contact pressure element and the Anpresselementantrieb, and the Anpresselementantrieb for applying the required contact pressure on the contact element is divided.
  • the actual Anpresselementantrieb is arranged between the pressure plate and the feed drive.
  • the invention is therefore based on the object to provide a piece-oriented and highly effective method and a corresponding device for attaching end caps on the front side of a web roll.
  • This object is achieved according to the invention in a method of the type mentioned above, that forms the abutment of the contact pressure element under the action of the reaction force caused by the Anpressvorgang.
  • the method is thus characterized in that the pressing element is first brought into contact with at least a portion of at least one end face of the roll to be packaged.
  • the contact pressure element experiences a resistance, which is used as an initiator of the temporary formation of the abutment for the drive element.
  • the method is characterized in that the abutment of the contact pressure element during pressure build-up and regresses again during pressure reduction, in particular simultaneously with the course of the acting reaction force.
  • the compression pressure is first reduced. Ideally, this is done by lowering the pressure applied in the pressure device. Along with this, the abutment also forms back. The reaction force drops and eventually becomes zero.
  • primarily non-positive or frictionally engaged elements are used to form the abutment.
  • the abutment can form along a suitable path independently of fixed locking points, so that the path to be traveled for the contact pressure element in the further course of the press can remain low. Due to the unneeded locking elements and a relatively simple control technology, such a method can be implemented with low investment requirements and can also be particularly suitable for retrofitting or redesigning existing methods for attaching end covers on end faces of web rolls.
  • the method is characterized in that the abutment of the contact element discretely off and back again.
  • Such a variant is characterized in that, after initiation by the reaction force experienced at the contact pressure element of the material web roll to be packaged, a secure abutment is formed which primarily has a form-fitting effect and thus immediately, but at least within shortest time (locking path) is fully loaded.
  • a shared pack press principle when using a shared pack press principle, but so far proceeded as follows: First, the pressing unit is moved to a front side of the web roll to be packaged, then brought to a standstill before reaching the front side at a suitable locking position, where appropriate, adjusted and subsequently locked. Then the remaining distance is covered. Only then can the actual pressing process begin.
  • a variant of the inventive solution which is characterized by a discreet off and back again forming abutment of the contact element, compared to the aforementioned variant usually requires a higher investment, but is particularly well suited for coping with packing processes, in which heavy web rolls, with web widths between 200 mm and 5,000 mm, with high cycle frequencies preferably of over 80 rolls per hour, more preferably of over 120 rolls per hour, to be packed. Because of the high weights of the material web rolls and the relatively high speeds of travel of the contact pressure element on the end face of the material web rolls, extremely large forces arise.
  • the contact pressure element and the abutment of the contact pressure element use at least one common setting device, in particular a common pressure device.
  • a proportional ratio can be defined. For this purpose, it is possible, on the one hand, that this ratio is determined once structurally, or can be optionally changed by means of suitable control or regulating devices, in particular also during operation, that is, during the packing process.
  • a hydraulic pressure device may be provided for implementing the method.
  • the hydraulic pressure device may have a separate adjusting device in the form of a pressure chamber in the coupling region to the abutment. Valves can be used to control the pressure acting on the contact pressure element and the abutment pressure ratio. Due to the variably adjustable pressure ratio, it is additionally possible to react actively to changes in the components which transmit the contact pressure, in particular wear on the support element, while maintaining a required braking force.
  • the regression of the abutment can be delayed with respect to the regression of the contact pressure and / or can take place with a delay.
  • a common printing device can also be understood as meaning a plurality of individual, mutually coupled local printing devices.
  • a common actuator can generally be understood to mean a force-generating means. It can be next to a hydraulic or pneumatic pressure device also to act a suitable electromechanical device.
  • the object underlying the invention is achieved in a device of the type mentioned in the present invention, that the device has a support element which is suitable to form a pressing element serving abutment under the action of the contact pressure caused by the reaction force to a stationary device , in particular a housing / frame or a foundation, releasably support.
  • the temporary formation of the abutment of the pressing element can be initiated by contact between the pressing element and the roller end face.
  • the contact pressure element can first be brought into contact with at least one section of at least one end face of the roll to be packed.
  • the support element is supported non-positively and / or positively.
  • a support element is to be designed such that it is free of defined locking points to form the abutment in the range of a suitable path.
  • a support element in the form of a brake pad formed and against a steel or concrete rail a stationary device, in particular a housing or frame or a foundation be pressed.
  • the surface of the region which can be brought into operative connection with the supporting element of the corresponding stationary device can have a suitable profiling.
  • Such a device variant also receives a form-fitting component.
  • friction-increasing coatings of the corresponding stationary device are also conceivable.
  • Such a device is also inexpensive to manufacture.
  • a safe abutment can be formed, which is fully resilient within a very short time, after overcoming a Verklemmungs- or locking path.
  • This variant usually requires a higher investment requirement compared to the aforementioned variant, but is particularly well suited for coping with packing processes in which heavy material web rolls are to be packed with high clock frequencies. Due to the high weights, which are typically between 0.6 t and 12 t, the material web rolls and the relatively high acceleration velocities of the contact pressure element on the end face of the material web rolls result in extremely large forces.
  • the resistor required for forming the abutment, or at least for initiating it can be selected, in particular controlled or regulated.
  • the device is particularly well adapted to the requirements of the respective material web rolls to be packaged.
  • Such a device is thus characterized in particular by a high piece-equity orientation. Also, such a device is im Over the years evolving parameters of the end cover used, in particular their adhesive properties and the associated contact pressure required adjustable.
  • a device may be particularly preferably configured when the support member has a releasable locking device or is in communication with a releasable lock.
  • the abutment is particularly stable and resilient.
  • a triggering device is present, via which the locking device can be activated and / or deactivated again.
  • a triggering device With the help of a triggering device, it is possible to abruptly overcome the path required for a positive support of the support element, so the Verklemmungs- or locking path, by activation to allow instantaneous formation of the abutment. By deactivating the locking device as instantaneous resolution of the abutment is enabled.
  • the reaction force on the pressing element or the momentarily effective contact pressure are used as parameters for activation and deactivation respectively.
  • the amount to be determined for the respective switching operation may be structurally defined, or preferably be modifiable via suitable control or regulating devices, in particular also during operation, ie during the packing process.
  • Such a configured device has particularly good conditions for a product-oriented, adaptable and user-friendly design of the control or the regulation of the device.
  • production errors are excluded with a high level of security.
  • the at least one pressing element is arranged movable, preferably guidable, on at least one supporting element which is movable, preferably guidable, relative to the stationary device, in particular the housing / frame or the foundation.
  • the support element is movable by the pack press drive and the at least one pressing element has at least one separate drive.
  • each drive is preferably associated with its own control / regulation which, depending on the desired mode of operation, drives the pack press drive, the pressing element drive or drives and optionally the support element (s) of the abutment (s).
  • control / regulation is understood as the entirety of a central or virtual control device, the required sensors and actuators and the connections between them - wirelessly or via lines.
  • a positive coupling takes place in the actuation and / or corresponding movement of the pressing elements and thus the operation of the device for attaching end caps. It is first to distinguish whether a or two Anpressworken are provided. If two press units are provided, both press units have their own drives for the actual pressing process. Their respective feed movements, however, can be realized via a common pack press drive or via individual pack press drives. In a first sub-variant, in addition to two pressing units, a common pack press drive is provided for realizing the feed movements of the individual pressing units to be made in advance of the actual pressing operation. A possible positive coupling of the drives of the individual Anpressticianen is then implemented via a two jointly associated control / regulation.
  • the both sides of the end faces of a roll of web material arranged drives the pressing elements are so positively coupled together that a plant of the end cover can be done simultaneously or synchronously or at a predefined time interval at both ends of the web roll.
  • This forced coupling can be realized in different ways. In the simplest case, this can be generated by a common control by the temporal sequence of the control of the individual devices of the pack press drive and the drives of the Anpresstechniken is matched in a corresponding manner to each other. With this solution, the feed paths and the required contact forces can thus vary greatly from each other.
  • the individual pressing unit which is assigned to one end face in each case, can be designed in an optimized manner for operation on it.
  • the individual drives include a control / regulation.
  • the drive is preferably realized either via a threaded spindle with threads arranged in different directions or else, for example, via a conveyor belt guided around at least two deflection rollers, whereby the deflection takes place between the two deflection rollers and the individual support elements are respectively coupled to different regions of the conveyor belt the distance is preferably half a conveyor belt length in the circumferential direction.
  • Each movement of the conveyor belt in one direction causes a corresponding adjustment movement on the respective support element, wherein the adjusting movement takes place synchronously due to the mechanical positive coupling.
  • a pressing element is used, which is designed and arranged to be suitable to receive by means of a receiving and positioning a front cover and to position against the web roll, the at least one contact surface preferably by means of a heater is heated.
  • the device is particularly well suited for coping with high cycle times in the entire packaging process, since the end covers are securely fed and can be done directly on site heating of an optional, thermoplastic adhesive.
  • different work phases are superimposed.
  • a front cover holding device and a Stirndeckelbephasevorraum also significantly lower production costs.
  • FIG. 1 illustrates in a highly simplified representation of the basic structure and the basic operation of an inventive device 1 for attaching end covers 28, in particular outer end covers on the end faces 30 of a web roll 29.
  • the device 1 comprises a roller bearing device 2, to which the respective web roll 29 during positioning and fastening the end cover 28 is positioned with respect to its longitudinal axis 31 in position.
  • the web roll 29 can either be stationary and stationary during the fastening of the end cover 28 or can be set into a rotational movement. In both cases, the storage takes place on the outer circumference of the web roll 29 by resting on a support surface formed by the roller bearing 2.
  • the device 1 comprises at least one pressing element 4 movable relative to an end face 30 of the material web roll 29 in the longitudinal direction x of the roller bearing device 2 and thus in the direction of the longitudinal axis 31 of the web roll 29.
  • a pressing element 4 movable relative to an end face 30 of the material web roll 29 in the longitudinal direction x of the roller bearing device 2 and thus in the direction of the longitudinal axis 31 of the web roll 29.
  • Such pressing element 4 are provided, which is used successively with rotation of the web roll 29 about a perpendicular to the longitudinal axis 31 for pressing on both end faces 30 or are, as shown, according to a particularly advantageous embodiment two oppositely oriented end faces 30 in the longitudinal direction x of the roller bearing device 2 movable pressing elements 4 are provided.
  • the pressing member 4 may be equipped with a receiving and positioning device 6 for safe handling and rapid fixation of the end cover 28.
  • both pressing elements have their own pack press drives 27 and can be controlled via a common control device 22.
  • the sensor 18 is suitable to inform about the position of the material web roll 29 to be packaged, while the sensor 19 is suitable for registering parameters, in particular support dimensions, very particularly in the x direction, and weight.
  • the pressing surfaces 5 of the pressing elements 4 can be equipped with end covers 28 and have receiving and positioning devices 6 for the temporary fixing of the end cover 28 to the contact surfaces 5.
  • the pressing elements 4 have heaters 7 and are therefore suitable for forehead cover 28, which have a thermoplastic adhesion promoter, in particular PE, on a functional side, particularly comfortable and quick to process.
  • the heating device 7 melts the thermoplastic bonding agent located on the side of the end cover 28 facing away from it, while the contact pressure element moves towards the end face 30 of a material web roll 29. In the subsequent pressing process is thus simultaneously a gluing or bonding of the packaging.
  • the two pressing elements 4 move simultaneously to the web roll 29. Meets the contact surface 5 of a contact element 4 the facing her end 30 of the web roll 29 to be packaged, forming an abutment 8 under construction of the reaction force F R.
  • a sensor 16 for detecting the contact pressure or the contact pressure F A and a sensor 17 for detecting the reaction force F R are each provided in this example on both sides of the web roll 29 to be packaged. The latter is expediently located approximately in the middle of the contact surface 5 of the pressing element 4. A positioning of the sensor 17 in the lower half of the contact surface 5 of the pressing member 4 may be useful in strongly fluctuating diameters of the web rolls 29 to be packaged. It is also conceivable, but not shown here, that the contact surface 5 of the contact pressure element 4 has a plurality of sensors 17 for detecting the reaction force F R and these are expediently distributed over the contact surface 5.
  • Conceivable would be an adjusting device for the support element 9, which electronically with at least one of the sensors 16, 17 for detecting the contact pressure / contact force F A or the reaction force F R corresponds and simultaneously or delayed the support member 9 against a suitable support surface adjusted or against this, for example pressed by the housing / frame 25 or the base 26 formed support surface.
  • the design of the abutment 8 may be purely non-positively depending on the brought into operative connection pressing surfaces or form-locking portions, such as profiling of the abutment 8 serving pressing surfaces have.
  • the sensor 20 for detecting the performance characteristics of the respective drive 27 completes primarily the image for the higher-level control device 22 and is, like all sensors 16 to 21 shown in the embodiments with the control device 22 wirelessly connected.
  • the sensor 20 can also serve to monitor the powers for the adjustment paths along the x-direction which are necessary in addition to the actual pressing process and can be used as a securing element against overstressing of a pack press drive 27.
  • the actual adjustment paths can additionally, as shown, be detected by a sensor 21.
  • FIG. 2 illustrates in a greatly simplified representation of the basic structure and the basic operation of an inventive device 1 in conjunction with a shared drive concept.
  • a device 1 which has a split drive concept has the advantage that the drive 24 of the pressing element 4 comprises a support element 23 which is movable relative to a housing / frame 25, in particular guidable, and on which the contact pressure element 4 is mounted.
  • the pack press drive 27 is preferably arranged and supported outside the guide of the support element 23, as shown. Indicates the device For both end faces 30 of the material web roll 29 to be packaged, individual pressing units 3 can be moved by a common pack press drive 27.
  • the respective pressing unit 3 has a device for forming an abutment 8, wherein a trained abutment is adapted to releasably fix the support member 23 relative to the housing / frame 25.
  • this is a lever system is used, wherein the reaction force F R acts on one side of the lever and on the other at least indirectly a locking force against the guide, for example a housing / frame 25 is generated by generating an actuating force of an actuating or adjusting device, wherein the lever acts directly or via further transmission means on the adjusting and / or actuating device.
  • the locking force is always proportional to the contact pressure of the respective pressing element. 4
  • FIG. 3 illustrates in a greatly simplified representation of the basic structure of a preferred embodiment of an Anpressech 3, which has a common actuating device 10, here a common printing device for the contact pressure element 4 and the abutment 8 of the pressing.
  • Occasion for pressure buildup can be at least one sensor 17 for detecting the contact pressure / the contact force F A , as in FIG. 1 is shown.
  • the sensor 21 may be part of a magnetostrictive displacement measuring system, for example, and is housed here protected in the housing region of the pressing unit 3. In the example shown, it gives a signal for opening a valve, which is not described in detail, which is shown here in the upper area of the printing device 10.
  • the illustrated embodiment is suitable depending on the valve used 12 / used valves 12 to provide a steadily or a discretely forming abutment 8 ready. If the pressure P building up in the pressure device 10 during the pressing process also acts directly on the abutment, that is, the valve or valves 12 are at least partially open when the pressure builds up, the pressure in the actuating device 11, here the pressure element, of the support element 9 increases steadily , Thus, the contact pressure between the support element 9 and its abutment, in the case shown, the housing / frame 25. An on this manner forming abutment 8 is proportional to the present pressure P of the adjusting device 10 and thus to the present contact pressure or to the present contact force F A proportional.
  • the ratio is determined by means of valve configurations and piston surfaces in the pressure devices 10 and 11.
  • the valve positions can also be selected during the pressing process, in particular by means of the higher-level control device 22. Due to the variably adjustable pressure ratio, it is additionally possible to react actively to changes in the components which transmit the contact pressure, in particular wear on the support element, while maintaining a required braking force.
  • the regression of the abutment 8 can be delayed with respect to the regression of the contact pressure / contact force F A and / or with a delay.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Replacement Of Web Rolls (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP09172313A 2008-12-18 2009-10-06 Procédé et dispositif de fixation de couvercles sur un rouleau de matériau Withdrawn EP2202160A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810054872 DE102008054872A1 (de) 2008-12-18 2008-12-18 Verfahren und Vorrichtung zum Befestigen von Stirndeckeln an der Stirnseite einer Materialbahnrolle

Publications (1)

Publication Number Publication Date
EP2202160A1 true EP2202160A1 (fr) 2010-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09172313A Withdrawn EP2202160A1 (fr) 2008-12-18 2009-10-06 Procédé et dispositif de fixation de couvercles sur un rouleau de matériau

Country Status (3)

Country Link
EP (1) EP2202160A1 (fr)
CN (1) CN201793288U (fr)
DE (1) DE102008054872A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660158A1 (fr) * 2012-05-03 2013-11-06 ITW Packaging Systems Group GmbH Dispositif de cerclage de pièces d'emballage
US11691770B2 (en) 2019-03-26 2023-07-04 Signode Industrial Group Llc Method for positioning an edge-protector and apparatus for strapping packages

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105480452B (zh) * 2015-12-22 2017-10-03 瑞安市天成包装机械有限公司 卷筒纸保护套包装机
CN105416657B (zh) * 2015-12-22 2017-10-03 瑞安市天成包装机械有限公司 保护套包裹机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1840222A (en) * 1930-06-18 1932-01-05 Inland Empire Paper Company Wrapping and sealing apparatus
US3393492A (en) * 1965-10-22 1968-07-23 Appleton Mach Roll header
DE2838862A1 (de) * 1977-09-14 1979-03-22 Westvaco Corp Verfahren und vorrichtung zum verpacken grosser papierrollen
DE4038997A1 (de) * 1989-12-15 1991-06-20 Haines & Emerson Inc Verfahren und vorrichtung zum einsetzen eines innenkopfstuecks
DE19961665A1 (de) 1999-12-21 2001-07-05 Voith Paper Patent Gmbh Verpackungsvorrichtung zum Befestigen von Außenstirndeckeln

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1840222A (en) * 1930-06-18 1932-01-05 Inland Empire Paper Company Wrapping and sealing apparatus
US3393492A (en) * 1965-10-22 1968-07-23 Appleton Mach Roll header
DE2838862A1 (de) * 1977-09-14 1979-03-22 Westvaco Corp Verfahren und vorrichtung zum verpacken grosser papierrollen
DE4038997A1 (de) * 1989-12-15 1991-06-20 Haines & Emerson Inc Verfahren und vorrichtung zum einsetzen eines innenkopfstuecks
DE19961665A1 (de) 1999-12-21 2001-07-05 Voith Paper Patent Gmbh Verpackungsvorrichtung zum Befestigen von Außenstirndeckeln

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2660158A1 (fr) * 2012-05-03 2013-11-06 ITW Packaging Systems Group GmbH Dispositif de cerclage de pièces d'emballage
US11691770B2 (en) 2019-03-26 2023-07-04 Signode Industrial Group Llc Method for positioning an edge-protector and apparatus for strapping packages

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Publication number Publication date
DE102008054872A1 (de) 2010-06-24
CN201793288U (zh) 2011-04-13

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