EP3753882B1 - Dispositif et procédé de laminage de bandes de matériau - Google Patents

Dispositif et procédé de laminage de bandes de matériau Download PDF

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Publication number
EP3753882B1
EP3753882B1 EP19180562.1A EP19180562A EP3753882B1 EP 3753882 B1 EP3753882 B1 EP 3753882B1 EP 19180562 A EP19180562 A EP 19180562A EP 3753882 B1 EP3753882 B1 EP 3753882B1
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EP
European Patent Office
Prior art keywords
conveyor belt
winding space
belt systems
rollers
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.)
Active
Application number
EP19180562.1A
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German (de)
English (en)
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EP3753882A1 (fr
Inventor
Olivier Handsaeme
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.)
Handsaeme Machinery bvba
Original Assignee
Handsaeme Machinery bvba
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.)
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Publication date
Application filed by Handsaeme Machinery bvba filed Critical Handsaeme Machinery bvba
Priority to EP19180562.1A priority Critical patent/EP3753882B1/fr
Priority to PCT/EP2020/062088 priority patent/WO2020254025A1/fr
Publication of EP3753882A1 publication Critical patent/EP3753882A1/fr
Application granted granted Critical
Publication of EP3753882B1 publication Critical patent/EP3753882B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/22—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction band
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4137—Supporting web roll on its outer circumference
    • B65H2301/4138—Supporting web roll on its outer circumference belt arrangement
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/41419—Starting winding process
    • B65H2301/41429—Starting winding process in coreless applications
    • 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
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/264—Arrangement of side-by-side belts
    • 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
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/265—Arrangement of belt forming a deformable ring, e.g. driven in the nip of a roller pair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/16—Irregularities, e.g. protuberances
    • B65H2511/166—Irregularities, e.g. protuberances relative to diameter, eccentricity or circularity
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1922—Specific article or web for covering surfaces such as carpets, roads, roofs or walls

Definitions

  • the present invention generally relates to the field of rolling strips of material, e.g. carpets, using a winding machine.
  • it relates to a compact and reliable winding solution that allows to form rolls having a small inner and a large outer diameter, as well as uniformly wound windings and even end faces.
  • strips of carpet are to be formed into rolls for easy handling and storage, e.g. after production or laundering of the carpet.
  • strips of isolation material, films, paper and the like are rolled into spiral wound rolls before packaging.
  • winding machines have been developed for facilitating rolling up carpets and other materials.
  • the strip is rolled up on itself within a defined space.
  • a winding space is bordered by several conveyor belts and/or rollers, causing the strip of material to successively contact these conveyor belts and/or rollers, thereby forming a spirally wound roll.
  • a common difficulty is to keep the strip forming the roll properly tensioned throughout the entire operation, such that a cylindrical roll with uniform density throughout all windings is obtained.
  • This rolling quality needs to be guaranteed even when a long strip of carpet or other material, and thus a large diameter of the wound roll, is provided.
  • telescoping during rolling i.e.
  • US5305963 which discloses a device for rolling strips of material according to the preamble of claim 1, instead of using a pivoting mechanism, the third contact point is displaced by an outward movement of the compression roll in a substantially straight line rather than in an arc. In this way, a balanced disposition of the three bearing points is restored during rolling.
  • the linear movement of the compression roll requires an extensive system of telescoping rods, arms and pivots, making the machine voluminous.
  • the solution of US5305963 focusses on the winding of compressible materials, e.g. strips of isolation material, where the compression roll has a limited contact surface with the material in order to enable sufficient compression of the strip during rolling.
  • compressible materials e.g. strips of isolation material
  • the above identified objectives are realized by a device for rolling strips of material, where
  • a strip of material may be a carpet, e.g. a tufted or woven carpet, a wall to wall carpet, a carpet runner, etc.
  • a strip of material may also refer to other types of material, like e.g. a strip of isolation material, artificial grass, furnishing fabrics, film, paper, etc.
  • Rolling a strip of material comprises rolling up, i.e. starting from a strip and forming a wound roll, as well as unrolling, i.e. starting from a wound roll and unroll to obtain a strip.
  • the device according to the invention comprises multiple conveyor belt systems. This implies that during operation the device uses at least two conveyor belt systems to enable rolling.
  • the device may comprise more than two conveyor belt systems, or a mix of conveyor belt systems and one or more forming rollers or compression rolls.
  • the device has the function of a rolling mechanism within a complete winding machine, where the latter comprises other components like a feeding system, a roll extracting system, a packaging system, etc.
  • Each of the conveyor belt systems comprises one or more endless belts supported on parallel rollers for longitudinal movement in response to rotation of the rollers.
  • a conveyor belt system may e.g. comprise two parallel rollers with an endless loop of carrying medium that rotates about them. That carrying medium may comprise one endless belt or may be subdivided into multiple endless belts. Typically, such multiple endless belts are mutually parallel, each of them forming an endless loop.
  • the one or more endless belts are tensioned, thereby defining in unloaded condition a substantially flat surface extending between the parallel rollers.
  • a roller is cylindrical, where the axis of the cylinder is the rotation axis of the roller.
  • a roller may comprise multiple pulleys, each of them carrying an endless belt and being positioned on a common shaft, where the axis of the shaft is the rotation axis of the roller.
  • each of the conveyor belt systems may comprise its own set of rollers.
  • a roller may be shared between two conveyor belt systems, i.e. both of the conveyor belt systems each comprise the shared roller and a separate roller. One or both of the rollers are powered, moving the one or more endless belts forward. The latter results in a longitudinal movement of the one or more endless belts from one roller to another.
  • the conveyor belt systems are configured to define a winding space for rolling the strips of material about a rotation axis parallel with the rotation axis of the rollers.
  • a winding space is a space in which the roll is rolled up or unrolled on its own, i.e. without the roll being placed on e.g. a mandrel.
  • the winding space is defined by conveyor belt systems only.
  • additional forming rollers or compression rolls may contribute in defining the winding space
  • a strip of material is fed into the winding space, and the conveyor belt systems cause the strip to successively contact the belt surfaces, thereby forming a spirally wound roll.
  • a wound roll put in the winding space may be unrolled by successively contacting the belt surfaces defining the winding space.
  • the winding space is defined by conveyor belt systems and potentially additional compression rolls, in the sense that those systems force the strip of material to form a roll within that space. It does not mean however, that the winding space is a closed space or that it is completely physically bordered by conveyor belt systems or compression rolls.
  • the rotation of the roll during rolling up or unrolling occurs about a rotation axis being substantially parallel with the rotation axis of the rollers supporting the conveyor belt systems.
  • Different shapes of winding space may occur in respective embodiments, e.g. the winding space may be triangular, rectangular, squared, circular, etc.
  • the number of contact points between the roll being wound and the conveyor belt systems or forming rollers defining the winding space may vary across different possible embodiments.
  • the device comprises a positioning system configured to move at least one of the conveyor belt systems following a translation, such that the winding space is altered in accordance with the changing diameter of rolled material.
  • the device comprises a positioning system that is configured to move at least one of the conveyor belt systems during rolling.
  • the conveyor belt system that is moved is moved as a whole, i.e. the rollers and one or more belts comprised in the conveyor belt systems are moved together without changing their relative positions.
  • the movement is such that the winding space is altered in accordance with the changing roll diameter. This implies that the movement takes place in a plane perpendicular to the rotation axis.
  • a translation of an object in a specific plane is defined as a displacement in which every point of the object has the same travelled path. In other words, no rotational movement of the object takes place in that specific plane.
  • every point of the object is displaced over the same distance and following the same direction.
  • every point follows a path defined by two consecutive line segments.
  • every point follows the same curved trajectory.
  • one conveyor belt system may be moved following a translation, or two conveyor belt systems may be moved, or more of them may be moved.
  • two conveyor belt systems may be moved, each of them following a different translation.
  • one conveyor belt system may be translated perpendicular to the direction defined by its two rollers, while another conveyor belt system may be translated in line with the direction defined by its two rollers.
  • the invention is advantageous compared to solutions known in the prior art, because of various aspects.
  • the use of conveyor belt systems for rolling a strip of material ensures a proper contact zone between the roll surface and the belt surfaces, thereby enabling a reliable movement of the strip without overcompressing the material at specific contact points.
  • the belts do not drag on the material being rolled, thereby avoiding traces on the rolled material.
  • Conveyor belt systems may also easily be configured to carry or support the roll during winding.
  • the translational movement of one or more conveyor belt systems allows to scale the winding space uniformly, while keeping the contact points between the belt surfaces and the material equally distributed across the roll. This contributes to a high rolling quality, where rolls with uniformly wound windings are being formed. Moreover, it avoids the risk of the roll unintentionally jumping out of the winding space at higher rolling diameters, which allows for reliable rolling of high-length strips.
  • the translational movement of the conveyor belt system(s) allows to rescale the winding space ranging from a space practically zero, to a very large space.
  • the translational movement of a conveyor belt system allows to obtain a very small winding space, e.g. by using separate belts on the moving system alternating with belts on non-moving conveyor belts systems. Consequently, rolling-up can be started at a very small inner diameter, which leads to less voluminous wound rolls, even for high-length strips.
  • the positioning system is configured to move a conveyor belt system as a whole. This implies that the length and tension of the one or more belts is not changed during the movement of the conveyor belt system, such that no additional system is needed to compensate for the changing length or to keep the belts tensioned. This contributes to obtaining a simple and compact device. Moreover, also a translational movement of a conveyor belt system can be accomplished with a simple and compact system, e.g. using one or more linear guides.
  • the translation is such that the direction of the at least one of the conveyor belt systems, defined by the relative position of the rollers in a plane perpendicular to the rotation axis, is maintained.
  • the direction of that conveyor belt system is defined by considering the cross sections of the conveyor's rollers in the plane perpendicular to the rotation axis, e.g. considering a straight line between the centre points of those cross sections. This direction may e.g. also be the direction of substantially straight belts running between two rollers.
  • the translation is such that length of the at least one of the conveyor belt systems, defined by the mutual distance of the rollers in a plane perpendicular to the rotation axis, is maintained.
  • the device comprises at least two conveyor belt systems with alternating belts.
  • each of those conveyor belt systems comprises multiple individual endless belts, the belts being separated from each other and typically being substantially parallel.
  • the belts of the second series alternate with the belts of the first series in the spaces between the belts of the first series.
  • the one or more endless belts comprise a non-curved surface configured to border said winding space.
  • a conveyor belt system may comprise two parallel rollers and the one or more belts extending between those two rollers define a substantially flat surface contacting the roll being wound. This implies that the winding space defined by these conveyor belt systems has physical borders being substantially straight lines in a plane perpendicular to the rotation axis.
  • Providing non-curved endless belts has the advantage that the conveyor belt system is simple and robust, while enabling sufficient contact between the belts and the material being wound.
  • the device comprises at least three conveyor belt systems.
  • the three conveyor belt systems may define a triangular winding space.
  • the device may comprise three conveyor belt systems and one or more additional compression rolls.
  • the device may comprise more than three conveyor belt systems, e.g. four conveyor belt systems defining a rectangular or square winding space.
  • the device comprises four conveyor belt systems, configured to define a square winding space.
  • the winding space is defined by four substantially straight lines in the plane perpendicular to the rotation axis, of which intersecting lines are substantially perpendicular. It does not mean however that four physical borders are present that fully close the winding space. For example, a gap may be left between two conveyor belt systems in order to allow the strip of material to enter the winding space.
  • a square winding space has the advantage that four contact points with the wound roll are obtained, being equally distributed across its circumference. This allows to obtain a roll with a quite perfect circular cross section and uniformly wound windings.
  • the sides of the square winding space each are at an angle of 45° with the horizontal ground position of the device.
  • the four conveyor belt systems have an inclined direction, defining a square winding space with an angle pointing upwards and an angle pointing downwards.
  • This has the advantage that during rolling the roll will easily find a stable position through its own weight, which contributes to obtaining uniformly wound windings.
  • a tube can easily be fed into the winding space, after which the strip of material entering the winding space will tilt the tube and start rolling on the tube.
  • the device allows to form rolls being wound on a tube.
  • the inclined conveyor belt systems allow for an easy ejection of the roll, where e.g. by pivoting one of the systems, the roll leaves the winding space automatically due to gravity.
  • the multiple conveyor belt systems comprise a first conveyor belt system, and the positioning system is configured to move the first conveyor belt system following a first linear translation, where the direction of the first linear translation makes an angle of 45° with the surface of the first conveyor belt system.
  • a particular conveyor belt system is considered, referred to as a first conveyor belt system, which is configured to move during winding, following a linear translation.
  • a linear translation implies that, in a plane perpendicular to the rotation axis, all points of the first conveyor belt system move following a straight line.
  • the direction of this linear translation makes an angle of 45° with the non-curved surface defined by the one or more belts of the first conveyor belt system.
  • the first linear translation may be non-driven, e.g. merely being induced by the changing diameter of the rolled material. For example, as the diameter grows the roll may simply push the first conveyor belt system upwards, thereby causing it to move on vertical guides.
  • the first linear translation may be driven, e.g. by an electric motor.
  • the multiple conveyor belt systems comprise a second conveyor belt system
  • the positioning system is configured to move the second conveyor belt system following a second linear translation, where the direction of the second linear translation is parallel with the surface of the second conveyor belt system.
  • a second conveyor belt system which is configured to move during winding, following a linear translation.
  • the linear translation is such that the second conveyor belt system is moved substantially parallel with its own non-curved surface defined by its one or more belts. This allows to easily rescale the square winding space during rolling.
  • it provides the possibility, in an example embodiment, to leave a gap between the second conveyor belt system and another conveyor belt system defining the square winding space, by simply controlling how much the second conveyor belt system is translated. Such a gap allows to easily feed the strip of material into the winding space.
  • the square winding space comprises a gap adapted to feed the strip of material into the winding space.
  • a gap is present to allow a strip of material to enter the winding space.
  • this gap may be set at minimal size, i.e. leaving just enough space to pass the strip, while maximally surrounding the roll being formed with belt surfaces.
  • the device comprises a component configured to set the pressure by one or more of the conveyor belt systems on the rolled material.
  • the device may be set such that the roll being wound encounters a counter-pressure caused by the conveyor belt systems defining the upper sides of the winding space.
  • the pressure may be set using a counterweight, a piston, a hydraulic cylinder, etc. This has the advantage that for different types or qualities of material an optimal rolling quality can be obtained.
  • the winding space is defined such that ejection of the rolled material and feeding of the strip of material both take place at the same side of the winding space.
  • the second aspect of the invention concerns an apparatus comprising a device for rolling a strip of material and a feeding system adapted to feed the strip to the rolling device.
  • the apparatus comprises a sensing unit, e.g. a photocell, sensor, camera, etc.
  • the sensing unit is adapted to measure the alignment of the strip of material when feeding the strip of material to the winding space.
  • the alignment is defined as the orientation of the strip with respect to the rotation axis of the rolling movement. If the strip is fed to the winding space while its side edges are not perpendicular to the rotation axis, a risk for telescoping during rolling occurs. As such, a misalignment may be detected by the sensing unit.
  • the apparatus comprises an edge control system configured to adapt the position of the device relative to the feeding system. For example, when the device is on a horizontal ground plane, the entire device is moved in this plane, e.g. using wheels riding on the ground plane. The direction and amount of this movement is based on the alignment, or misalignment, detected by the sensing unit. This allows to form a roll where the side edges of the strip are perpendicular to the rotation axis, such that telescoping of the roll during winding is avoided. This contributes to obtaining rolls with even end faces.
  • the above identified objectives are realized by a method for rolling strips of material, comprising:
  • Fig. 1 and Fig. 3 show an embodiment of the device 100 according to the invention, together with a feeding system 105 and a supporting system 116 for carrying the roll 200 after ejection from the device 100.
  • Fig. 1 shows the device 100 when rolling just has started
  • Fig. 3 shows the device 100 at the end of a rolling cycle.
  • Fig. 2 and Fig. 4 give a closer view of the device 100 shown in Fig. 1 and Fig. 3 respectively.
  • Rolling happens within a winding space 400, which is also shown in Fig. 10 .
  • the device 100 comprises a frame 602, shown in the 3D-views of Fig. 6 and Fig. 7 .
  • the frame allows the device 100 to be standing on a floor being substantially flat.
  • the direction of the ground level, indicated as 117 in Fig. 1 is defined as horizontal.
  • the direction perpendicular to the horizontal direction 117, in the plane of Fig. 1 is defined as vertical.
  • rolling of the material occurs about a rotation axis being substantially perpendicular to the plane of the figure.
  • the device 100 comprises four conveyor belt systems: 101, 102, 103 and 104.
  • the conveyor belt system 102 comprises two rollers 201, 203 and endless belts 207.
  • the conveyor belt system 104 comprises two rollers 600, 208 and endless belts 401.
  • the conveyor belt system 101 comprises endless belts 206, a roller 202 and a roller 205.
  • the latter roller 205 is used in common by both the conveyor belt systems 101 and 103.
  • the conveyor belt system 103 comprises the shared roller 205, a roller 204, and endless belts 402.
  • the rollers 201, 203, 600, 208, 202, 205 and 204 are cylindrical, where the axis of the cylinder is the rotation axis of the roller.
  • rollers 201, 203, 600, 208, 202, 205 and 204 are mutually parallel, and each of them is substantially parallel with the rotation axis of the rolling movement.
  • the axis of the rollers 201, 203, 600, 208, 202, 205, 204 is substantially perpendicular to the plane of the figure.
  • a roller may comprise multiple pulleys, each of them carrying an endless belt and being positioned on a common shaft, where the axis of the shaft is the rotation axis of the roller.
  • each of the conveyor belt systems comprises multiple endless belts, as can be seen in the 3D-representations of Fig. 6 and 7 , and in the views given in Fig. 8 and Fig. 9 .
  • the multiple endless belts comprised in one conveyor belt system are separated and mutually parallel.
  • the multiple belts comprised in one conveyor belt system alternate with the multiple belts of another conveyor belt system.
  • Fig. 8 shows a view made from within the winding space 400, when looking downwards. As such, a view on the conveyor belts systems 101 and 103 is given.
  • Fig. 8 shows that the endless belts 402 of conveyor belt system 103 alternate with the endless belts 206 of conveyor belt system 101. Both series of belts are supported on a common roller 205.
  • the roller 205 is driven by an electric motor 111.
  • Fig. 9 shows a view made from within the winding space 400, when looking upwards. As such, a view on the conveyor belts systems 102 and 104 is given.
  • Fig. 9 shows that the endless belts 207 of conveyor belt system 102 alternate with the endless belts 401 of conveyor belt system 104.
  • Fig. 6 shows that the roller 203, comprised in conveyor belt system 102, is driven by an electric motor 601.
  • Fig. 4 shows that the roller 208, comprised in conveyor belt system 104, is driven by an electric motor 110.
  • the three driven rollers, 205, 208 and 203 each have their own motor. This has the advantage that speed and tensioning of the belts comprised in the various conveyor belt systems can be controlled individually. In other embodiments, however, a single drive in common by multiple conveyor belt systems may be present.
  • the four conveyor belt systems 101, 102, 103, 104 together define a square winding space 400, in which a roll 200 is formed during rolling.
  • the cylindrical rollers 201, 203, 600, 208, 202, 205 and 204 are configured to rotate about their axis, thereby causing a longitudinal movement of the endless belts.
  • a strip of material is fed into the winding space 400 through the gap 1000, indicated in Fig. 10 .
  • the conveyor belt systems 101, 102, 103, 104 cause the strip to successively contact the belt surfaces, thereby forming a spirally wound roll 200.
  • the roll 200 is rolled up on its own, i.e. without the roll being placed on e.g. a mandrel. Remark that for the clearness of representation the strip of material being fed to the winding space 400 during rolling is not shown in the figures. For the same reason, individual windings comprised in the roll 200 have not been drawn.
  • the winding space 400 is square in shape, where the belts of different conveyor belt systems cross each other at angles being substantially 90°. In this way a roll with perfect circular cross section is obtained. Moreover, the square winding space 400 provides four equidistant contact points with belts across the circumference of the roll 200, such that uniformly wound windings are obtained. Moreover, in the embodiment shown, the square shape of the winding space 400 is tilted relatively to the horizontal ground position 117, i.e. its straight sides are at an angle of 45° with the horizontal ground position 117. This is due to the inclined positioning, at 45° relative to the ground 117, of the different conveyor belt systems 101, 102, 103, 104. In this way, the position of the roll 200 is kept stable during rolling, due to its own weight, contributing to obtain uniformly wound windings.
  • the winding space 400 is almost completely bordered by belt surfaces, comprised in the endless belts 207, 401, 206, 402, except for the gap 1000.
  • the roll 200 cannot leave the winding space during rolling, at any stage of the rolling cycle. This allows to start a small inner diameter, and to end up at large outer diameter.
  • the belt surfaces bordering the winding space 400 also prevent the strip to get stuck in between individual conveyor belt systems.
  • more or less than four conveyor belt systems may be provided to define the winding space.
  • three conveyor belt systems may be used to define a triangular winding space.
  • the conveyor belt system 104 may be absent, while the three other conveyor belt systems 101, 102, 103 still define a square winding space, being opened at one side.
  • Comparing Fig. 2 and Fig. 4 shows that during rolling the winding space 400 is rescaled according to the growing roll diameter.
  • the rescaling of the winding space 400 is established due to a first translational movement of the conveyor belt system 102 and a second translational movement of the conveyor belt system 104.
  • the first translational movement has a vertical direction, i.e. the conveyor belt system 102 is moved upward during rolling, on linear guides 404 being indicated on Fig. 4 .
  • the conveyor belt system 104 is moved upward, together with the conveyor belt system 102.
  • the second translation includes a translation of the conveyor belt system 104 in line with its own direction.
  • the system 104 shifts more into the winding space 400, thereby closing the winding space 400, but leaving a gap 1000.
  • the alternating belts of the various conveyor belt systems 101, 102, 103, 104 allow to easily rescale the winding space 400, by moving each of the conveyor belt systems 102 and 104 as a whole, i.e. without changing the length or direction of the belts 207 respectively 401.
  • the scaling mechanism as described above allows for a simple and compact mechanism to establish the rescaling of the winding space 400.
  • Adapting the winding space 400 according to the growing roll diameter allows to keep a perfect square winding space 400 at any stage of the rolling cycle, thereby guaranteeing uniformly wound windings.
  • the rescaling of the winding space 400 according to the changing roll diameter may be realised otherwise.
  • embodiments are possible where the conveyor belt systems 102 and 104 each are translated in a direction perpendicular to their own belt surfaces to establish the rescaling of the winding space 400.
  • all of the conveyor belt systems 101, 102, 103, 104 may be translated to enable the rescaling.
  • the first translation is not driven by an electric motor or any other drive system requiring external energy. Instead, the vertical movement of the conveyor belt systems 102 and 104 is induced by the growing diameter of the roll, where the roll itself pushes upwards to these conveyor belt systems 102, 104.
  • a toothed rail 107 ensures a synchronous upward movement over the entire width of the device 100, the width being defined as the dimension parallel with the rotation axis of the rollers.
  • the first translation is e.g. driven by an electric motor and controlled based on a measured roll diameter.
  • the weight of the systems 102 and 104 is balanced by means of a counterweight 112, using a cable 108 running over a wheel 109.
  • a counter-pressure can be established however, by means of a pneumatic cylinder 403. It allows to set a chosen pressure, by means of a proportional valve. In this way, rolling can be done pressure-free or under a chosen pressure, depending on e.g. the material type or material quality.
  • the second translational movement of the conveyor belt system 104 is driven by an electric motor 106.
  • this movement is controlled based on a measured vertical position of the conveyor belt system 102.
  • the system 104 shifts into the winding space 400 proportionally to the upward movement.
  • the second translation of the conveyor belt system 104 may be controlled based on a measured size of the gap 1000. In this case, the system 104 shifts into the winding space 400 until a predefined gap 1000 is obtained.
  • the feeding system 105 allows to feed a strip of material towards the device 100. It comprises a frame 120, and an endless belt 118 supported on rollers 119. To start rolling, one end of the strip of material is positioned on the endless belt 118. For example, it is positioned with the head edge perpendicular to the plane of Fig. 1 , thus parallel with the rotation axis of the rolling in device 100, and the side edges perpendicular to the rotation axis of the rolling in device 100. If no telescoping happens during rolling, then a roll 200 with even end faces is obtained.
  • a tube e.g. in plastic or cardboard, may be provided into the winding space 400 before the feeding of the strip of material into the winding space 400 starts.
  • a tube may be provided automatically out of a tube dispenser, or it may be put manually in the winding space 400. Due to the light weight of the tube, the head of the strip of material will lift the tube when entering the winding space 400, such that rolling occurs around the tube, and a roll 200 with inner tube is being formed.
  • Fig. 5 shows how, after ending the rolling cycle, the roll 200 may be ejected from the device 100.
  • the roll 200 may first be packaged in e.g. a film, plastic or paper, or be closed with a tag, before being ejected from the winding space 400.
  • the conveyor belt systems 102 and 104 are fixed as to keep them at their maximal vertical position, e.g. using a pneumatic cylinder or motor.
  • the conveyor belt system 103 is pivoted using pneumatic cylinders 114. As shown in Fig. 6 two of such cylinders 114 are present in this embodiment, which allow to pivot the complete conveyor belt system 103.
  • Fig. 6 two of such cylinders 114 are present in this embodiment, which allow to pivot the complete conveyor belt system 103.
  • FIG. 5 shows that by pivoting the system 103, the winding space 400 is opened, such that the roll 200 can leave the winding space 400.
  • the conveyor belt systems 102 and 104 are brought back to their starting position, e.g. using a pneumatic cylinder or motor, ready to start a new rolling cycle.
  • Fig. 5 shows that after having pivoted the conveyor belt system 103 to open the winding space 400, the roll 200 will automatically roll out of the winding space 400, under its own weight, due to the inclination of 45° of the conveyor belt system 101. After being ejected, the roll 200 ends up on a supporting system 116. From there on, further process steps may be executed. As shown in the embodiment of Fig. 5 , ejection of the roll 200 and feeding of the strip of material both occur at the same side of the device 100. The gap 1000 being present in the winding space 400 for feeding is simply enlarged to allow for ejection, by pivoting the conveyor belt system 103.
  • Feeding and ejecting at the same side of the device 100 also has the advantage that the roll 200 will not start unrolling during ejection. As such, the roll 200 needs not to be closed before ejection.
  • a sensing unit 700 e.g. a photocell
  • the sensing unit 700 cannot be seen in the cross sections shown in Fig. 1 to 5 . To better illustrate its positioning, however, the sensing unit 700 is symbolically presented in Fig. 10 , where its sensing direction is indicated with an arrow 1001. The sensing unit 700 allows to detect whether the side edges of the strip are perpendicular to the rotation axis when the strip is fed to the winding space 400.
  • other types of sensor units 700 may be used, e.g. a camera, light sensor, etc.
  • the sensor unit 700 is fixed to the frame 602 using bars 701. It measures the alignment of the strip, at the transfer between the feeding system 105 and the conveyor belt system 103.
  • the measurement of the sensing unit may be used by an edge control system, being configured to adapt the position of the device 100 relative to the feeding system 105. This means that the entire device 100 is moved within a horizontal plane, e.g. using wheels 115 and driven by a motor 113. In this way, the rotation axis of the device 100 can be repositioned such that it becomes perpendicular again to the edges of the strip entering the device 100. This prevents telescoping during rolling, contributing to obtain rolls 200 with even end faces.
  • the term 'perpendicular' or 'substantially perpendicular' to a direction is in this context defined as making an angle of 90° with this direction, with a tolerance of plus or minus 10°, preferably 5°, more preferably 3°.
  • the term 'parallel' or 'substantially parallel' with a direction is in this context defined as making an angle of 0° with this direction, with a tolerance of plus or minus 10°, preferably 5°, more preferably 3°.

Landscapes

  • Winding Of Webs (AREA)

Claims (15)

  1. Dispositif (100) destiné à l'enroulement de bandes de matériau,
    - ledit dispositif (100) comprenant de multiples systèmes de courroie transporteuse (102) ;
    - chacun desdits systèmes de courroie transporteuse (102) comprenant une ou plusieurs courroies sans fin (207) supportées sur des rouleaux parallèles (201, 203) pour un mouvement longitudinal en réponse à la rotation desdits rouleaux (201, 203) ; et
    - lesdits systèmes de courroie transporteuse (102) étant conçus pour définir un espace de bobinage (400) destiné à l'enroulement desdites bandes de matériau autour d'un axe de rotation parallèle à l'axe de rotation desdits rouleaux (201, 203),
    caractérisé en ce que
    - ledit dispositif (100) comprend un système de positionnement conçu pour déplacer au moins l'un desdits systèmes de courroie transporteuse (102) suite à une translation, de sorte que ledit espace de bobinage (400) soit modifié conformément au diamètre changeant du matériau enroulé (200).
  2. Dispositif (100) selon la revendication 1,
    ladite translation étant de sorte que la direction dudit au moins un desdits systèmes de courroie transporteuse (102), définie par la position relative desdits rouleaux (201, 203) dans un plan perpendiculaire audit axe de rotation, soit maintenue.
  3. Dispositif (100) selon la revendication 2,
    ladite translation étant de sorte que la longueur dudit au moins un desdits systèmes de courroie transporteuse (102), définie par la distance mutuelle desdits rouleaux (201, 203) dans un plan perpendiculaire audit axe de rotation, soit maintenue.
  4. Dispositif (100) selon l'une des revendications précédentes,
    au moins deux desdits systèmes de courroie transporteuse (102) comprenant chacun une série de courroies sans fin individuelles (207), où lesdites séries respectives sont conçues pour s'alterner l'une avec l'autre.
  5. Dispositif (100) selon l'une des revendications précédentes,
    ladite ou lesdites courroies sans fin (207) comprenant une surface non incurvée conçue pour border ledit espace de bobinage (400).
  6. Dispositif (100) selon l'une des revendications précédentes,
    ledit dispositif (100) comprenant au moins trois systèmes de courroie transporteuse (102).
  7. Dispositif (100) selon la revendication 5 et 6,
    ledit dispositif (100) comprenant quatre systèmes de courroie transporteuse (102), conçus pour définir un espace de bobinage carré (400).
  8. Dispositif (100) selon la revendication 7,
    lesdits côtés dudit espace de bobinage carré (400) étant chacun à un angle de 45° par rapport à la position au sol horizontale (117) dudit dispositif (100).
  9. Dispositif (100) selon la revendication 8,
    lesdits multiples systèmes de courroie transporteuse (102) comprenant un premier système de courroie transporteuse (102), et
    ledit système de positionnement étant conçu pour déplacer ledit premier système de courroie transporteuse (102) suivant une première translation linéaire, où la direction de ladite première translation linéaire fait un angle de 45° avec ladite surface dudit premier système de courroie transporteuse (102).
  10. Dispositif (100) selon la revendication 9,
    lesdits multiples systèmes de courroie transporteuse (104) comprenant un second système de courroie transporteuse (104), et
    ledit système de positionnement étant conçu pour déplacer ledit second système de courroie transporteuse (104) suivant une seconde translation linéaire, où la direction de ladite seconde translation linéaire est parallèle à ladite surface dudit second système de courroie transporteuse (104).
  11. Dispositif (100) selon la revendication 7,
    ledit espace de bobinage carré (400) comprenant un espace (1000) adapté pour alimenter ledit espace de bobinage (400) en bande de matériau.
  12. Dispositif (100) selon l'une des revendications précédentes,
    ledit dispositif (100) comprenant un composant (403) conçu pour régler la pression par un ou plusieurs desdits systèmes de courroie transporteuse (102) sur ledit matériau enroulé (200).
  13. Dispositif (100) selon l'une des revendications précédentes,
    ledit espace de bobinage (400) étant défini de sorte que l'éjection dudit matériau enroulé (200) et l'alimentation en bande de matériau s'effectuent toutes deux du même côté dudit espace de bobinage (400).
  14. Appareil comprenant
    - un dispositif (100) selon l'une des revendications précédentes ;
    - un système d'alimentation (105) conçu pour alimenter ledit dispositif (100) en bande de matériau ;
    - une unité de détection (700) conçue pour mesurer l'alignement de ladite bande de matériau par rapport audit système d'alimentation (105) ;
    - un système de commande de bord conçu pour adapter la position dudit dispositif (100) par rapport audit système d'alimentation (105) selon ledit alignement.
  15. Procédé permettant l'enroulement de bandes de matériau, comprenant :
    - la fourniture d'un dispositif (100) comprenant de multiples systèmes de courroie transporteuse (102), chacun desdits systèmes de courroie transporteuse (102) comprenant une ou plusieurs courroies sans fin (207) supportées sur des rouleaux parallèles (201, 203) pour un mouvement longitudinal en réponse à la rotation desdits rouleaux (201, 203), et lesdits systèmes de courroie transporteuse (102) étant conçus pour définir un espace de bobinage (400) destiné à l'enroulement desdites bandes de matériau autour d'un axe de rotation parallèle à l'axe de rotation desdits rouleaux (201, 203) ;
    - l'enroulement desdites bandes de matériau à l'intérieur dudit espace de bobinage (400) ;
    - le déplacement d'au moins l'un desdits systèmes de courroie transporteuse (102) suite à une translation, de sorte que ledit espace de bobinage (400) soit modifié conformément au diamètre changeant du matériau enroulé (200).
EP19180562.1A 2019-06-17 2019-06-17 Dispositif et procédé de laminage de bandes de matériau Active EP3753882B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19180562.1A EP3753882B1 (fr) 2019-06-17 2019-06-17 Dispositif et procédé de laminage de bandes de matériau
PCT/EP2020/062088 WO2020254025A1 (fr) 2019-06-17 2020-04-30 Dispositif et procédé permettant d'enrouler des bandes de matériau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19180562.1A EP3753882B1 (fr) 2019-06-17 2019-06-17 Dispositif et procédé de laminage de bandes de matériau

Publications (2)

Publication Number Publication Date
EP3753882A1 EP3753882A1 (fr) 2020-12-23
EP3753882B1 true EP3753882B1 (fr) 2022-04-27

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ID=66912707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19180562.1A Active EP3753882B1 (fr) 2019-06-17 2019-06-17 Dispositif et procédé de laminage de bandes de matériau

Country Status (2)

Country Link
EP (1) EP3753882B1 (fr)
WO (1) WO2020254025A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK144468C (da) * 1978-05-03 1982-08-23 B L Nielsen Apparat til oprulning af baneformigt materiale
DE3143436A1 (de) * 1981-11-02 1983-05-11 Schwab Maschinenbau GmbH & Co, 8867 Oettingen Vorrichtung zum aufwickeln einer warenbahn
US4573644A (en) 1985-02-27 1986-03-04 Production Design Products, Inc. Carpet rolling machine
DE3714721A1 (de) 1986-05-02 1987-11-12 Peter Meede Vorrichtung zum kernlosen wickeln von bahnenfoermigem material
US5305963A (en) 1992-12-03 1994-04-26 Schuller International, Inc. Method and apparatus for forming rolls from strips of compressible material
US7100862B2 (en) 2003-09-03 2006-09-05 Ottawa Fibre, Inc. Roll-up machine and method
CN203946648U (zh) * 2014-05-05 2014-11-19 江苏开利地毯股份有限公司 仿小草簇绒地毯专用卷毯装置

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Publication number Publication date
WO2020254025A1 (fr) 2020-12-24
EP3753882A1 (fr) 2020-12-23

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