EP1940712A2 - Machine et procede de bobinage pour le stockage d'elements plats - Google Patents
Machine et procede de bobinage pour le stockage d'elements platsInfo
- Publication number
- EP1940712A2 EP1940712A2 EP06808063A EP06808063A EP1940712A2 EP 1940712 A2 EP1940712 A2 EP 1940712A2 EP 06808063 A EP06808063 A EP 06808063A EP 06808063 A EP06808063 A EP 06808063A EP 1940712 A2 EP1940712 A2 EP 1940712A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- hub
- winding
- strip
- drum
- flexible
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/032—Controlling transverse register of web
- B65H23/0326—Controlling transverse register of web by moving the unwinding device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
- B65H23/063—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle and controlling web tension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/006—Winding articles into rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/66—Advancing articles in overlapping streams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H39/00—Associating, collating, or gathering articles or webs
- B65H39/14—Associating sheets with webs
-
- 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
- B65H2301/419—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means
- B65H2301/4192—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means for handling articles of limited length in shingled formation
- B65H2301/41922—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means for handling articles of limited length in shingled formation and wound together with single belt like members
-
- 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
- B65H2701/1932—Signatures, folded printed matter, newspapers or parts thereof and books
Definitions
- the present invention relates to a machine and a method of winding flat and flexible elements arriving continuously and partially overlapping, such as sheets or printed envelopes, stqcker and transport pending a unwinding operation by another device using these elements.
- the storage reels comprise a central drum having a hub inserted in the winding machine and a cylindrical outer circumferential part on which spirals a continuous flow of flat elements aligned along the longitudinal axis of movement and partially overlapping.
- a flexible band attached at one end to a mid-point of the drum is wound together with the flat elements, so as to mark a separation between the different winding layers and to tighten them on the drum to hold the assembly together. in position.
- the flat elements generally come from a continuous printing machine and are reeled to be stored right out of the machine.
- the reels are then delivered to the next workshop, which for example makes journals by assembling different sheets from multiple reels or automatically envelops documents by inserting them into envelopes from a reel.
- the reel is unwound to extract the flat elements, simultaneously the tape is unrolled and is stored temporarily on a hub. Once the reel is empty, the tape is put back on the drum by winding it on, then the whole is returned to the starting shop to serve again.
- a major disadvantage of this system is that for drums returning from the workshops at different customers, the tape may have been wound very unevenly, and after various handling for transport during which the coil may be impacted, the tape flexible is more or less offset from the transverse median plane of the drum.
- the flexible band is not perfectly centered over its entire length relative to the flat elements, the coil is then deformed.
- the coil consisting of a stack of flexible elements and the band ensuring a clamping covering only a central portion of the flat member, the non-maintained side portions are deformed. If the band moves laterally during winding, the deformation of the flat elements is irregular, which can cause problems for downstream automatic machines that can not then grasp the elements.
- the geometry of the coil is also in this case bad with deformed side faces that are no longer flat. This problem, especially in the case where it is combined with an improperly adapted tape tension during winding, can lead to an axial shift of the drum or part of the bobbin during handling which may lead to complete collapse. of the coil.
- the present invention is intended in particular to avoid these disadvantages and to provide the realization of a winding machine a simple effective solution, to ensure a good winding quality of the coils.
- a winding machine comprising: on the one hand a winding assembly receiving a continuous flow of flat and flexible elements aligned along a longitudinal axis and partially overlapping, to form a coil by spiraling around a drum these elements with interposition between the turns of a flexible central band whose one end is fixed on the drum, and secondly a peeling assembly of said flexible band whose other end is simultaneously running from a hub on which the strip was previously rolled up, a braking device being provided on the hub to ensure a DC voltage of the band.
- the machine further comprises a motorized means for adjusting the transverse position of the hub providing lateral displacement relative to the coil to keep a constant alignment of the band during winding.
- An essential advantage of the winding machine according to the invention is that the transverse position of the strip being strictly ensured by the motorized means, the wound strip is well aligned on the same plane and in the axis of the flat elements which ensures to these elements a uniform deformation and to the coil a good symmetry.
- the adjustment means being motorized, it can be very responsive and ensure a good position from the beginning of the winding for all types of winding defects found on drums returning empty with their band wound on it.
- the hub is fixed on a shaft supported by a carriage mounted on a guide means allowing transverse movement relative to a frame of the unwinding assembly.
- the motorized means is an electric jack comprising a ball screw and a nut, connected on the one hand to the frame and on the other hand to the carriage, performing a transverse positioning of one with respect to the other.
- the motorized means for adjusting the transverse position of the hub relative to the coil uses to control its movement during winding a fixed sensor relative to a frame of the unwinding assembly giving information on the lateral position of the strip at a location near the unwinding point of the hub strip.
- the motorized means for adjusting the transverse position of the hub is used to laterally align the strip on the hub during a prior operation of winding the strip on the hub from the drum.
- the lateral alignment of the band with respect to the hub during the prior winding operation on this hub can use a fixed sensor relative to the carriage providing information on the lateral position of the web at a location near the winding point of the web on the hub.
- the sensor giving information on the lateral position of the strip may be an optical sensor.
- the braking device comprises a rotary electric machine controlled by a control for delivering a braking torque or a motor torque.
- the belt drive of the conveyor feeding the flow of flat elements can be done by a tangential support of this belt on the outer periphery of the coil, and a sensor can give an indication of the movement of the belt and the direction of this movement to control the electric machine and provide either a braking torque if the winder is being wound, or a motor torque if the winder rotates in the other direction for a prior operation of winding the band on the hub .
- the traction on the belt produced by the braking torque delivered by the electric machine is regularly decreasing during a winding operation.
- the decrease of the traction on the web during a winding operation can be controlled by a sensor giving information on the outer diameter of the coil being wound.
- the decay of the traction on the web between the beginning and the end of the winding is in a ratio of between two and four.
- the flat elements wound on the coil are envelopes. They may have a width greater than the height and be arranged transversely with respect to the flow along the width.
- the wound envelopes have a width of about 19 to
- the tension the band is of the order of 300 Newton at the beginning of the winding and 100 Newton at the end.
- the envelopes of envelopes made are used downstream by an automatic enveloping machine which unrolls these coils to extract one from the envelopes and automatically insert a mail.
- the invention also relates to a method of winding a coil from a continuous flow of flat and flexible elements which are aligned along a longitudinal axis and overlap partially.
- the winding is obtained by winding these flat elements spirally around a drum with interposition between the turns of a flexible central strip which is unwound from a hub.
- a control of the lateral position of the flexible central strip wound around said drum (8) is constantly made during winding to modify the transverse position of the hub as a function of the result of this check.
- control means possibly optical, connected to a motorized means, possibly motorized jack type, for adjusting the transverse position of the hub.
- control of the lateral position of the flexible central strip determines the offset between this lateral position of the flexible central strip and the axis of the drum.
- the transverse position of the hub is then modified so as to eliminate this offset.
- the latter is fed from a drum and wound around the hub.
- a continuous control of the lateral position of this flexible central strip wound around said hub is continuously carried out during the winding of the flexible central band around the hub, and the transverse position of this hub is modified as a function of the result. of this control.
- the control of the lateral position of the flexible central strip wound around the hub is carried out by control means, for example optical, connected to a motorized means, for example of motorized jack type, for adjusting the transverse position of the hub. hub.
- control of the lateral position of the flexible central strip wound around the hub determines the offset between this lateral position of the flexible central strip and the axis of the hub.
- the transverse position of the hub is then modified so as to eliminate this offset.
- an adjustment of the tension of the flexible central strip is carried out continuously at each turn formation.
- the adjustment of this tension of the flexible central strip is obtained by adjusting the unwinding speed of this flexible central strip from the hub. More preferably, the unwinding speed of the flexible central strip from the hub decreases, possibly linearly, as the diameter of the coil increases.
- the decrease in the unwinding speed of the flexible central strip from the hub can be obtained by a braking device provided on this hub (60) and connected to a control means, preferably of ultrasonic sensor type, of the height of the axis of the coil.
- FIG. 1 represents a front view of a winding machine according to the invention
- - Figure 2 shows a perspective view of a part of the winding machine having the unwinding device of a hub.
- FIG. 1 represents a winding machine 1 comprising a winding or winding unit 2 of flat and flexible elements 10 and a unwinding assembly 4 of a flexible strip 26.
- the flat elements 10 leave a manufacturing machine which, by example from a continuous strip of paper printed, cut, fold, glue and assembles elements as envelopes.
- the coil 6 comprises at its center a drum 8 on which are wound the flat elements 10, the hub of the drum is held by a clamp system 30 for rapid mounting on a rotary shaft carried by the frame 16 of the assembly 2, and is rotated by a winding motor.
- One end of a flexible band 26 is fixed on the drum 8 so as to be able to wind on a transverse plane substantially centered in the middle of the drum.
- the elements 10 arrive aligned along the axis of the flow overlapping each other on a conveyor 12 consisting of two parallel belts disposed on either side of the longitudinal axis.
- the conveyor 12 does not have its own motorization, the belts are always in tangential bearing on the outer periphery of the spool 6 and are driven by contact, which makes it possible to permanently ensure a perfect synchronization of the feed speed of the machine.
- conveyor 12 with the peripheral speed of the coil 6, without friction. Maintaining the state and position of the flat elements 10 is thus guaranteed.
- the flexible strip 26 pulled by the coil and kept under tension by the unwinding assembly 4 comprising a brake is inserted between the two belts of the conveyor 12 to press the flow of elements.
- the axis of the drum 8 of the spool 6 is fixed to the frame 16 of the winding assembly 2 by guide rails 14 so as to be able to slide vertically under the action of a motor 18.
- the flexible strip 26 coming from the unwinding assembly 4 passes behind a roller 28 mounted free to rotate at the end of an arm 22 pivoting about an axis 24.
- the roller 28 serves to regulate the tension of the strip 26, it also makes it possible to follow the growth of the diameter of the coil 6, a sensor measures the tilting of the arm as and when the winding of flat elements 10 and control after a certain displacement the rise of the axis of rotation of the coil 6 according to an incremental height predetermined.
- FIG. 2 shows the unwinding assembly 4 comprising a frame 40 fixed with respect to the winding assembly 2, receiving on its upper part a transversely movable carriage 42.
- the carriage 42 has on its underside two sets of two spaced apart guide shoes 44, each set slides on a rail 46 connected to the frame 40 to provide precise guidance.
- a geared motor 48 is fixed on top of the carriage 42, a pulley at its end receives a toothed belt 50 which drives a second pulley fixed on a shaft 52 supported by two bearings in the frame 40.
- a hub 60 placed between the bearings is carried by the shaft 52, it has on its periphery a succession of magnetic pellets receiving a metal part fixed to the end of the flexible band 26 to start winding.
- the lateral position of the carriage 42 is controlled by an electric jack 54 consisting of a screw driven by an electric motor which slides axially a nut through balls ensuring operation without play or friction.
- This jack 54 is supported on the one hand on a support 56 connected to the carriage 42 and on the other hand on a support 58 connected to the frame 40, it allows to adjust quickly and accurately the lateral position of the carriage and therefore the hub 60.
- This adjustment is made from the signal given by two optical sensors 62, 64 and a coding wheel 66.
- the optical sensors are fixed one to the carriage 42 and the other 64 to the frame 40, near the point d winding of the strip 26 on the hub 60 and provide a signal depending on the lateral position of the tape 26.
- the encoder wheel 66 is 'driven' by "rotation by the belt 12 and provides a signal indicative of the rotation of the coil as well as the direction of rotation.
- the operation of the winding machine is as follows. While a coil is being wound on a first coil assembly, a second coil 6 disposed on a second coil assembly is prepared to take over.
- a drum 8 having a strip 26 wound on it is fixed by the clamps 30 to the axis of the winder, the free end of the strip is guided towards the hub 60 by a not shown belt, and then fixed to the hub by the magnets arranged above.
- the geared motor 48 then wraps the band on the hub 60 while the sensor 62 attached to the carriage 42 is used to control the actuator 54 via a control and laterally move the carriage 44 so as to compensate for defects. aligning the band 26 wound on the drum 8, aligning at all times the hub 60 according to the lateral position of the band.
- the senor 62 is a non-contact and wear-free optical sensor, which sends a light beam perpendicular to the band and straddles one of the edges. As a function of the light intensity passing on the side of the strip, it deduces its position more or less offset laterally.
- this winder 2 is ready to start which occurs automatically when the other coil is full, a referral system automatically directing the flow of flat elements 10 to this new coil 6.
- the drum 8 is rotated driving the conveyor 12, this movement with its direction of movement is recorded by the encoder wheel 66 which implements the geared motor 48 then acting as an electric generator producing a braking torque realizing the tension of the band 26.
- the control of this geared motor 48 makes it possible, by adjusting the electrical power produced to simply adjust, precisely and constantly over time, the torque braking, which is difficult to achieve with a mechanical braking comprising friction linings that heat up and wear by varying the coefficient of friction.
- the lateral guidance of the carriage 42 is again implemented by using the signal from the sensor 64 fixed to the frame 40 to control the jack 54 so as to permanently align the strip 26 coming out of the hub 60 with respect to the drum axis 8 which is itself laterally fixed relative to the frame.
- Coils usually having a final diameter of about 1, 40 meters with a belt length of about 300 meters, which is about 6 times the width, are very sensitive to the misalignment of the strip, which by dissymmetrically distributing the clamping force a bending of the flat faces and a risk of axial shift of the turns, or even collapse of the coil.
- the adjustment of the web tension is also an important factor in the quality of the winding in combination with the positioning of the web.
- Tests have shown that to obtain a good stability of the coil and minimal deformation of the flat elements, it is advantageous to start the winding with a higher voltage and then reduce it gradually.
- a linear decrease of the voltage as a function of the increase in the diameter of the coil gives a good result.
- the best results are obtained with voltages of the order of 300 Newton at the start and 100 Newton at the arrival.
- an ultrasonic sensor 20 fixed to the frame 16 of the winder which measures, without contact, the variation in height of the axis of the coil 8 and therefore of its diameter so as to follow the progressive rise of this axis is to control the braking torque accordingly on the geared motor 48.
- Another advantage of the device for regulating the tension of the belt by a geared motor 48 controlled in motor torque or in brake torque is that in the event of an incident during the winding of flat elements, it is possible to unwind the coil 6 remove the defective items.
- the strip 26 to be released is then rolled up again on the hub 60 by the geared motor delivering a driving torque to extract the flat elements. defective.
- the conveyor belt 12 having no own drive follows synchronously j without causing additional damage that would be caused by a shift of the flat elements, an unwinding of the defective portion is performed properly thereby restart the winding where the elements are good and reduce the losses.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding Of Webs (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Windings For Motors And Generators (AREA)
- Manufacture Of Motors, Generators (AREA)
- Replacement Of Web Rolls (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL06808063T PL1940712T3 (pl) | 2005-09-08 | 2006-09-04 | Maszyna i sposób nawijania do składowania elementów płaskich |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0509170A FR2890385A1 (fr) | 2005-09-08 | 2005-09-08 | Machine de bobinage pour le stockage d'elements plats |
| PCT/FR2006/002031 WO2007028885A2 (fr) | 2005-09-08 | 2006-09-04 | Machine et procede de bobinage pour le stockage d'elements plats |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1940712A2 true EP1940712A2 (fr) | 2008-07-09 |
| EP1940712B1 EP1940712B1 (fr) | 2011-03-23 |
Family
ID=36586089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06808063A Not-in-force EP1940712B1 (fr) | 2005-09-08 | 2006-09-04 | Machine et procede de bobinage pour le stockage d'elements plats |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8322645B2 (fr) |
| EP (1) | EP1940712B1 (fr) |
| AT (1) | ATE502887T1 (fr) |
| DE (1) | DE602006020897D1 (fr) |
| ES (1) | ES2362119T3 (fr) |
| FR (1) | FR2890385A1 (fr) |
| PL (1) | PL1940712T3 (fr) |
| WO (1) | WO2007028885A2 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4624163B2 (ja) * | 2005-04-08 | 2011-02-02 | ローレル精機株式会社 | 紙葉類収納繰出装置 |
| JP2010095340A (ja) * | 2008-10-16 | 2010-04-30 | Laurel Precision Machines Co Ltd | 紙葉類収納繰出装置 |
| CN119612255A (zh) * | 2025-02-17 | 2025-03-14 | 常州红壹智能装备有限公司 | 一种带有烫平功能的储箱 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3912193A (en) * | 1973-06-21 | 1975-10-14 | Knox Inc | Web position detector apparatus |
| CH656862A5 (de) * | 1982-06-15 | 1986-07-31 | Grapha Holding Ag | Verfahren und vorrichtung zum lagern von papierbogen. |
| CH659233A5 (de) * | 1983-01-21 | 1987-01-15 | Grapha Holding Ag | Vorrichtung zum aufwickeln eines schuppenstromes aus papierbogen. |
| CH682657A5 (de) * | 1991-02-13 | 1993-10-29 | Grapha Holding Ag | Verfahren und Einrichtung zur Herstellung eines Wickels. |
| DK0719720T3 (da) * | 1994-12-30 | 1998-04-27 | Ferag Ag | Oplagringsanordning til en rulleenhed og anordning til forarbejdning af trykkeriprodukter |
| US5626001A (en) * | 1996-05-08 | 1997-05-06 | Pitney Bowes Inc. | Shingled material roll feed for mail insertion system |
| JPH1059594A (ja) * | 1996-08-22 | 1998-03-03 | Dainippon Printing Co Ltd | 刷本巻取り装置の巻取り方法 |
| EP0826616A1 (fr) * | 1996-08-29 | 1998-03-04 | Grapha-Holding Ag | Dispositif de guidage pour un ruban |
-
2005
- 2005-09-08 FR FR0509170A patent/FR2890385A1/fr not_active Withdrawn
-
2006
- 2006-09-04 WO PCT/FR2006/002031 patent/WO2007028885A2/fr not_active Ceased
- 2006-09-04 DE DE602006020897T patent/DE602006020897D1/de active Active
- 2006-09-04 AT AT06808063T patent/ATE502887T1/de not_active IP Right Cessation
- 2006-09-04 EP EP06808063A patent/EP1940712B1/fr not_active Not-in-force
- 2006-09-04 ES ES06808063T patent/ES2362119T3/es active Active
- 2006-09-04 PL PL06808063T patent/PL1940712T3/pl unknown
- 2006-09-08 US US11/517,682 patent/US8322645B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007028885A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US8322645B2 (en) | 2012-12-04 |
| ES2362119T3 (es) | 2011-06-28 |
| PL1940712T3 (pl) | 2011-10-31 |
| DE602006020897D1 (de) | 2011-05-05 |
| ATE502887T1 (de) | 2011-04-15 |
| US20070051844A1 (en) | 2007-03-08 |
| EP1940712B1 (fr) | 2011-03-23 |
| WO2007028885A3 (fr) | 2007-05-18 |
| WO2007028885A2 (fr) | 2007-03-15 |
| FR2890385A1 (fr) | 2007-03-09 |
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