EP0498039B1 - Improvements to re-reeling machines for sheet material - Google Patents
Improvements to re-reeling machines for sheet material Download PDFInfo
- Publication number
- EP0498039B1 EP0498039B1 EP91117954A EP91117954A EP0498039B1 EP 0498039 B1 EP0498039 B1 EP 0498039B1 EP 91117954 A EP91117954 A EP 91117954A EP 91117954 A EP91117954 A EP 91117954A EP 0498039 B1 EP0498039 B1 EP 0498039B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- cores
- motors
- motorized
- motor
- 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.)
- Revoked
Links
Images
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
- B65H19/00—Changing the web roll
- B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
- B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
- B65H19/2269—Cradle
-
- 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
- B65H2301/4144—Finishing winding process
- B65H2301/41445—Finishing winding process after winding process
- B65H2301/41447—Finishing winding process after winding process discharging roll by, e.g. rolling it down a slope
-
- 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
- B65H2301/417—Handling or changing web rolls
- B65H2301/418—Changing web roll
- B65H2301/4181—Core or mandrel supply
- B65H2301/41812—Core or mandrel supply by conveyor belt or chain running in closed loop
-
- 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
- B65H2301/417—Handling or changing web rolls
- B65H2301/418—Changing web roll
- B65H2301/4181—Core or mandrel supply
- B65H2301/41816—Core or mandrel supply by core magazine within winding machine, i.e. horizontal or inclined ramp holding cores
-
- 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
- B65H2301/417—Handling or changing web rolls
- B65H2301/418—Changing web roll
- B65H2301/4182—Core or mandrel insertion, e.g. means for loading core or mandrel in winding position
- B65H2301/41822—Core or mandrel insertion, e.g. means for loading core or mandrel in winding position from above, i.e. by gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2408/00—Specific machines
- B65H2408/20—Specific machines for handling web(s)
- B65H2408/23—Winding machines
- B65H2408/235—Cradles
Definitions
- the present invention relates to improvements to re-reeling machines for sheet materials, especially paper.
- the reel is wound around a tubular core, which is made to rotate freely, that is without support chucks, between a group of three rollers, whose speed can be maintained substantially constant or be suitably varied during a winding cycle.
- the group of three motorized rollers forms a seating or cradle of variable dimensions, in such a way that the three rollers are always in contact with the reel being made up, as the latter gradually increases in diameter. Therefore, at least one of the three rollers is mobile in order to allow the diameter of the reel to increase and the reel to be discharged at the end of winding. This is carried out by means of a leverage operated by a cam, which carries out complete rotation for each roll which is wound, and whose profile determines the diameter of the roll.
- US-A-4 783 015 describes a re-reeling machine according to the preamble of claim 1.
- the winding of toilet paper is obtained by providing a provisional core which is placed in the cradle formed by three rollers and around which is formed a very thick and therefore rather rigid layer of material which will replace the cardboard core.
- the roll is then passed in a second cradle where the winding of the paper continues in a more loose way.
- the completed roll is then ejected and the provisional core extracted.
- Pressure cylinders are provided for actuating different elements which must be moved between two positions without following a particular law of motion.
- the aim of the invention is to eliminate the above-mentioned drawbacks by providing an extremely flexible reeling machine in which dead time while adapting the machine for new production is reduced to a minimum, and which allows a high degree of uniformity to be achieved in the winding of the product.
- the various motorizations are realized by means of brushless motors on which encoders are mounted for controlling the position, whose phase is adjusted with reference to a reference or machine encoder, mounted onto one of the winding rollers, which takes its motion from the general motorization of the reeling machine.
- the various motorizations are interlocked with a control unit which automatically gears the working of the machine to the type of reel to be made up, based on the starting data inserted, such as the diameter of the core, the final diameter of the reel and the number of metres of sheet material to be wound.
- a re-reeling machine which may be considered substantially known in itself, comprises a feeding device 1, suitable for conveying the cores 2 onto which the sheet material 3, particularly paper, must be wound, towards a glueing machine 4, which applies a layer of adhesive to the cores, which then advance towards a conveyor 5, by which the cores reach a winding unit, consisting of three motorized rollers 6, 7, 8.
- the paper follows the course shown in the figure, passing across a series of transmission rollers 9, 10, 11, a pair of perforating rollers 12, a counter roller 13, and then is partially wound onto the motorized roller 6, against which a roller 14 acts having a retractable cutting blade 15.
- the cores 2 are introduced into the space between the two motorized rollers 6, 7 by means of a series of arms 16, provided with end pins 17, said arms having their fulcra around one and the same axis y, perpendicular to the plane of the drawing, and being connected to each other by a stiffening rod 18.
- the motorized roller 7 is mounted onto an arm 19, with its fulcrum on an axis x, which is also perpendicular to the plane of the drawing, so as to be able to increase the centre distance between the rollers 6 and 7 at the moment that a core 2 is introduced between the rollers.
- the third motorized roller 8, or pressure roller is a mobile roller, which moves to allow the diameter of the reel 20 being made up to increase and the reel to be discharged from the winding space.
- the motorized roller 8 is carried by an arm 21, with its fulcrum around an axis z perpendicular to the plane of the drawing.
- the three motorized rollers 6, 7, 8 rotate at constant speed during the whole winding cycle of a reel 20, including the phases of introducing a core 2 and discharging a made up reel, and such speed is substantially the same for the three rollers, with the possible exception of that of the motorized roller 7, which may rotate at a slightly lower speed, in the order of 5%, for example.
- the various machine members are interlocked with a control unit C, which automatically gears the working of the machine on the basis of the data which have been inserted, such as the diameter of the core 2, the final diameter of the reel 20 and the number of metres of paper to be wound.
- a motor M1 for setting the mobile roller 8 in rotation a motor M2 for controlling the movements of the mobile roller 8
- a motor M3 for the movement of the motorized roller 7 and a motor M4 for operating the pin-holding arms 16 are provided.
- the motors M2-M4 are conveniently mobile reciprocating motion motors, which operate the corresponding members by means of the respective rigid arms b2, b3, b4.
- Encoders are mounted respectively onto the various motors for controlling the position, set in phase with a reference or machine encoder mounted on the motorized roller 6 operated by the general motorization.
- the positions in which motors M2, M3, M4 must be during the production cycle are located automatically on the basis of the data inserted into the control unit C.
Abstract
Description
- The present invention relates to improvements to re-reeling machines for sheet materials, especially paper.
- As is already known, in order to eliminate faults or imperfections in making up reels of sheet material, for example paper, it is usual for the reeling operation to be repeated on machines analogous to the reeling machines, but usually smaller, called re-reeling machines.
- The improvements according to the invention, although referring to re-reeling machines in particular, can be applied equally well to reeling machines in general, and at any rate to machines for the production of rolls of sheet material.
- In this type of machine, the reel is wound around a tubular core, which is made to rotate freely, that is without support chucks, between a group of three rollers, whose speed can be maintained substantially constant or be suitably varied during a winding cycle.
- The group of three motorized rollers forms a seating or cradle of variable dimensions, in such a way that the three rollers are always in contact with the reel being made up, as the latter gradually increases in diameter. Therefore, at least one of the three rollers is mobile in order to allow the diameter of the reel to increase and the reel to be discharged at the end of winding. This is carried out by means of a leverage operated by a cam, which carries out complete rotation for each roll which is wound, and whose profile determines the diameter of the roll.
- In the known reeling machines one sole motorization is foreseen, which controls, by means of suitable transmissions, all the machine members, amongst which the three winding rollers in particular, the cam which determines the diameter of the reel to be made up, and the means for introducing the core between the rollers and so on.
- This kind of solution involves various drawbacks, the most important of which is certainly the complete lack of flexibility of the machine. In fact, for example, every time production has to be changed, even when only a slight variation is made to the dimensions of the reel, it is necessary to replace the cam with another one which has a suitable profile, and thence subsequently correct all the machine. This involves the machine being at a standstill for a long time (about four or five hours), which causes considerable economic losses (5 - 6 tons of product).
- Furthermore, since the various adjustements are simply mechanical, during winding the material may be subjected to pressure shocks, which have a negative effect on the quality of the final product.
- US-A-4 783 015 describes a re-reeling machine according to the preamble of
claim 1. The winding of toilet paper is obtained by providing a provisional core which is placed in the cradle formed by three rollers and around which is formed a very thick and therefore rather rigid layer of material which will replace the cardboard core. The roll is then passed in a second cradle where the winding of the paper continues in a more loose way. The completed roll is then ejected and the provisional core extracted. Pressure cylinders are provided for actuating different elements which must be moved between two positions without following a particular law of motion. - The aim of the invention is to eliminate the above-mentioned drawbacks by providing an extremely flexible reeling machine in which dead time while adapting the machine for new production is reduced to a minimum, and which allows a high degree of uniformity to be achieved in the winding of the product.
- This aim has been achieved, according to the invention, by the features of the characterising portion of
claim 1. In particular, two of the three winding rollers are operated by the general motorization of the machine, while a separate motorization is foreseen for the third roller, which is in particular the mobile one, another motorization to determine the movement of such mobile roller, a motorization for the means for inserting the cores between the winding rollers, and a further motorization for moving one of the winding rollers in order to allow the core to be inserted. - Conveniently, the various motorizations are realized by means of brushless motors on which encoders are mounted for controlling the position, whose phase is adjusted with reference to a reference or machine encoder, mounted onto one of the winding rollers, which takes its motion from the general motorization of the reeling machine.
- The various motorizations are interlocked with a control unit which automatically gears the working of the machine to the type of reel to be made up, based on the starting data inserted, such as the diameter of the core, the final diameter of the reel and the number of metres of sheet material to be wound.
- Further characteristics of the invention will be understood more clearly from the detailed description which follows, which refers to one of its purely exemplary, and therefore non-restrictive, embodiments illustrated in the appended drawing, consisting of only one figure, which shows a schematic view of a part of a re-reeling machine.
- With reference to such figure, a re-reeling machine which may be considered substantially known in itself, comprises a
feeding device 1, suitable for conveying thecores 2 onto which the sheet material 3, particularly paper, must be wound, towards a glueingmachine 4, which applies a layer of adhesive to the cores, which then advance towards aconveyor 5, by which the cores reach a winding unit, consisting of three motorizedrollers transmission rollers rollers 12, acounter roller 13, and then is partially wound onto the motorizedroller 6, against which aroller 14 acts having aretractable cutting blade 15. Thecores 2 are introduced into the space between the two motorizedrollers arms 16, provided withend pins 17, said arms having their fulcra around one and the same axis y, perpendicular to the plane of the drawing, and being connected to each other by astiffening rod 18. The motorizedroller 7 is mounted onto an arm 19, with its fulcrum on an axis x, which is also perpendicular to the plane of the drawing, so as to be able to increase the centre distance between therollers core 2 is introduced between the rollers. Finally, the third motorized roller 8, or pressure roller, is a mobile roller, which moves to allow the diameter of thereel 20 being made up to increase and the reel to be discharged from the winding space. For this purpose the motorized roller 8 is carried by anarm 21, with its fulcrum around an axis z perpendicular to the plane of the drawing. - Conveniently the three motorized
rollers reel 20, including the phases of introducing acore 2 and discharging a made up reel, and such speed is substantially the same for the three rollers, with the possible exception of that of themotorized roller 7, which may rotate at a slightly lower speed, in the order of 5%, for example. - In accordance a preferential embodiment of the invention, the various machine members are interlocked with a control unit C, which automatically gears the working of the machine on the basis of the data which have been inserted, such as the diameter of the
core 2, the final diameter of thereel 20 and the number of metres of paper to be wound. - Such a degree of flexibility of the machine is made possible by the different motorizations adopted.
- In fact, as well as the general motorization of the machine (not shown), which also operates the motorized
rollers roller 7 and a motor M4 for operating the pin-holdingarms 16 are provided. - In particular, the motors M2-M4 are conveniently mobile reciprocating motion motors, which operate the corresponding members by means of the respective rigid arms b2, b3, b4.
- Encoders are mounted respectively onto the various motors for controlling the position, set in phase with a reference or machine encoder mounted on the motorized
roller 6 operated by the general motorization. - Depending on the product which is desired, the positions in which motors M2, M3, M4 must be during the production cycle are located automatically on the basis of the data inserted into the control unit C.
Claims (5)
- A re-reeling machine comprising a number of rollers (9, 10, 11, 13) and a group of three motorized rollers (6, 7, 8), the re-reeling machine being suitable for feeding sheet material (3) at a constant speed towards said group of three motorized rollers (6, 7, 8) which determine a winding space into which cores (2) are introduced in sequence, onto which cores (2) the said sheet material (3) is wound, wherein at least one (8) of the said three motorized rollers (6, 7, 8) is mobile in order to allow the increase in the diameter of the reel (20) being made up and its discharge from the space between the rollers when the winding has been completed, and comprising also means (16) for introducing the cores (2) into the space between the motorized rollers (6, 7), characterized in that said re-reeling machine is provided with a motor (M1) for setting the said mobile motorized roller (8) in rotation, different from the motor which operates the other two motorized rollers (6, 7), a motor (M2) for controlling the movements of the mobile motorized roller (8), and a motor (M4) for operating the means (16) for introducing the cores (2), at least said last two motors (M2, M4) being provided with encoders for controlling the position, set in phase with a reference encoder mounted on one of the motorized rollers (6 or 7) operated by the general motorization of the machine.
- A re-reeling machine according to claim 1, characterized in that the centre distance between the motorized rollers (6, 7) is variable to facilitate the introduction of the cores (2), and that such variation is obtained by means of a separate motor (M3) which produces a small movement of one (7) of the two motorized rollers (6, 7), the motor (M3) being provided with an encoder for controlling its position set in phase with said reference encoder.
- A re-reeling machine according to claim 1 or 2, characterized in that the said motors (M2, M3, M4) are brushless motors.
- A re-reeling machine according to any one of the previous claims, characterized in that the said motors (M2, M3, M4) operate with reciprocating rotary motion and control the corresponding members by means of respective rigid arms (b2, b3, b4).
- A re-reeling machine according to any one of the previous claims, characterized in that the said motors (M1-M4), as well as the general motorization of the machine, are interlocked with a control unit (C) which adjusts the machine automatically, and particularly the zero position of the motors (M2, M3, M4), on the basis of the data inserted in the unit, such as, for example, the diameter of the cores (2), the final diameter of the reel (20) and the metres of sheet material to be wound onto each core (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI910042A IT1246226B (en) | 1991-01-09 | 1991-01-09 | REFINEMENTS FOR REWINDERS FOR SHEET MATERIALS |
ITMI910042 | 1991-01-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0498039A1 EP0498039A1 (en) | 1992-08-12 |
EP0498039B1 true EP0498039B1 (en) | 1994-12-28 |
Family
ID=11358054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91117954A Revoked EP0498039B1 (en) | 1991-01-09 | 1991-10-22 | Improvements to re-reeling machines for sheet material |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0498039B1 (en) |
AT (1) | ATE116261T1 (en) |
DE (1) | DE69106338T2 (en) |
IT (1) | IT1246226B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7472861B2 (en) | 2005-06-20 | 2009-01-06 | The Procter & Gamble Company | Method for a surface rewind system |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL106327A (en) * | 1992-07-21 | 1997-06-10 | Perini Fabio Spa | Machine and method for the formation of coreless rolls of web material |
US5370335A (en) * | 1993-02-18 | 1994-12-06 | Paper Converting Machine Company | Surface rewinder and method |
US5505405A (en) * | 1993-02-18 | 1996-04-09 | Paper Converting Machine Company | Surface rewinder and method having minimal drum to web slippage |
US6648266B1 (en) | 1993-03-24 | 2003-11-18 | Fabio Perini S.P.A. | Rewinding machine and method for the formation of logs of web material with means for severing the web material |
IT1262046B (en) * | 1993-03-24 | 1996-06-18 | Guglielmo Biagiotti | REWINDING MACHINE FOR THE FORMATION OF ROLLS OF TAPE MATERIAL WITH MEANS FOR THE INTERRUPTION OF THE TAPE MATERIAL AND RELATIVE WINDING METHOD. |
CA2115981A1 (en) * | 1993-03-26 | 1994-09-27 | Gary E. Johnson | Coreless winding method and apparatus |
IT1265867B1 (en) * | 1993-06-09 | 1996-12-12 | Eva Perini | REWINDING MACHINE FOR THE PRODUCTION OF ROLLS OF RAPE MATERIAL ALTERNATIVELY WITH OR WITHOUT WINDING CORE |
RU2128617C1 (en) * | 1994-06-16 | 1999-04-10 | Фабио Перини С.П.А. | Rewinder for forming band material roll |
US20020117030A1 (en) * | 2000-12-22 | 2002-08-29 | Gambaro Anthony M. | Multi-blade log saw |
ITFI20030253A1 (en) * | 2003-10-02 | 2005-04-03 | Fabio Perini | DEVICE FOR CHECKING THE UNLOADING OF LOGS FROM ONE |
AT500976B1 (en) * | 2004-01-13 | 2006-10-15 | Andritz Ag Maschf | METHOD AND DEVICE FOR WINDING A PAPER TRACK |
IT1392694B1 (en) * | 2009-01-29 | 2012-03-16 | Gambini Int Sa | IMPROVED REWINDING MACHINE AND RELATIVE METHOD FOR WINDING THE PAPER AROUND A SOUL FOR THE REALIZATION OF A PAPER ROLL |
ITAR20130039A1 (en) * | 2013-09-27 | 2015-03-28 | Idea Pcm Srl | REWINDING MACHINE OF THE PERFECT TYPE, PARTICULARLY FOR THE PRODUCTION OF TISSUE AND SIMILAR ROLLS. |
ITAR20130037A1 (en) * | 2013-09-27 | 2015-03-28 | Idea Pcm Srl | REWINDING MACHINE OF THE PERFECT TYPE, PARTICULARLY FOR THE PRODUCTION OF TISSUE AND SIMILAR ROLLS. |
ITAR20130038A1 (en) * | 2013-09-27 | 2015-03-28 | Idea Pcm Srl | REWINDING MACHINE OF THE PERFECT TYPE, PARTICULARLY FOR THE PRODUCTION OF TISSUE AND SIMILAR ROLLS. |
US10427902B2 (en) | 2016-03-04 | 2019-10-01 | The Procter & Gamble Company | Enhanced introductory portion for a surface winder |
US10442649B2 (en) | 2016-03-04 | 2019-10-15 | The Procter & Gamble Company | Surface winder for producing logs of convolutely wound web materials |
US10427903B2 (en) | 2016-03-04 | 2019-10-01 | The Procter & Gamble Company | Leading edge device for a surface winder |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3009666A (en) * | 1958-10-31 | 1961-11-21 | Samuel M Langston Co | Roll density control for slitter winders |
US3858820A (en) * | 1973-09-27 | 1975-01-07 | Beloit Corp | Double drum winder |
US4723724A (en) * | 1985-04-17 | 1988-02-09 | Paper Converting Machine | Web winding machine and method |
US4783015A (en) * | 1986-08-27 | 1988-11-08 | Shimizu Machinery Co., Ltd. | Toilet paper roll and method of manufacture thereof |
US4828195A (en) * | 1988-02-29 | 1989-05-09 | Paper Converting Machine Company | Surface winder and method |
IT1234455B (en) * | 1989-06-08 | 1992-05-18 | Perini Navi Spa | EQUIPMENT FOR FORMING ROLLS THAT IS STICKS OF MATERIAL TAPED ON A WINDING SOUL |
-
1991
- 1991-01-09 IT ITMI910042A patent/IT1246226B/en active IP Right Grant
- 1991-10-22 AT AT91117954T patent/ATE116261T1/en not_active IP Right Cessation
- 1991-10-22 EP EP91117954A patent/EP0498039B1/en not_active Revoked
- 1991-10-22 DE DE69106338T patent/DE69106338T2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7472861B2 (en) | 2005-06-20 | 2009-01-06 | The Procter & Gamble Company | Method for a surface rewind system |
Also Published As
Publication number | Publication date |
---|---|
DE69106338T2 (en) | 1995-06-08 |
EP0498039A1 (en) | 1992-08-12 |
ITMI910042A0 (en) | 1991-01-09 |
IT1246226B (en) | 1994-11-16 |
DE69106338D1 (en) | 1995-02-09 |
ATE116261T1 (en) | 1995-01-15 |
ITMI910042A1 (en) | 1992-07-09 |
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