EP0407070A2 - Maschinen für die Herstellung von Plastikstoffrollen - Google Patents

Maschinen für die Herstellung von Plastikstoffrollen Download PDF

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Publication number
EP0407070A2
EP0407070A2 EP90306849A EP90306849A EP0407070A2 EP 0407070 A2 EP0407070 A2 EP 0407070A2 EP 90306849 A EP90306849 A EP 90306849A EP 90306849 A EP90306849 A EP 90306849A EP 0407070 A2 EP0407070 A2 EP 0407070A2
Authority
EP
European Patent Office
Prior art keywords
machine
mandrel
shaft
rotatable
roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90306849A
Other languages
English (en)
French (fr)
Other versions
EP0407070A3 (en
Inventor
Geoffrey Bridges
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0407070A2 publication Critical patent/EP0407070A2/de
Publication of EP0407070A3 publication Critical patent/EP0407070A3/en
Withdrawn legal-status Critical Current

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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
    • B65H18/02—Supporting web roll
    • B65H18/021—Multiple web roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/248—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction
    • B65H75/2484—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction movable actuator including wedge-like or lobed member
    • 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
    • B65H2301/4136—Mounting arrangements not otherwise provided for
    • B65H2301/41362—Mounting arrangements not otherwise provided for one of the supports for the roller axis being movable as auxiliary bearing

Definitions

  • This invention concerns improvements in and relating to machines for forming rolls of plastics material.
  • Plastics material in sheet form is often required to be formed into rolls for transportation and storage. At present rolls of plastics sheet are formed on a hollow core or tube that is rotated to form the roll. At capacity, the machine has to be stopped for the plastics sheet material to be cut and the formed roll moved to be replaced by another hollow core or tube support. Thus, valuable production time is lost and expense incurred.
  • An object of this invention is to provide an improved plastics sheet roll forming machine.
  • a plastics sheet roll forming machine comprising a first rotatable part having locations for at least two rotatable plastics sheet roll supports, such as mandrels or core supports.
  • the rotatable mandrels are preferably expandable and contractable between a first position for forming a plastics sheet material roll thereon and a second position for removing a completed roll from the mandrel.
  • Expansion and contraction of the mandrel may be achieved in any suitable way but in one preferred embodiment the mandrel may be formed by loosely connected elongated leaves around a central shaft, the leaves and the shaft having cooperating parts, whereby movement of the shaft within the mandrel, which movement may be longitudinally or rotary, in one direction urges the mandrel leaves apart and in the other direction allows the mandrel to collapse.
  • said cooperating parts are tapered members and said shaft movement is longitudinally of the mandrel.
  • the first rotatable part is preferably a beam mounted on a rotatable shaft preferable supported at opposite ends in bearings and is preferable rotatable through 360 degrees.
  • the machine of the invention will preferably have rotatable formations on the first rotatable part, such as cones, to fit into a core end and a retractable part at the opposite end of the machine also having formations, such as cones, to fit into a core end.
  • the machine of the invention is preferably operated hydraulically and it is particularly desirable that a single power source feed all of the functions of the machine.
  • the preferred power source is an hydraulic power source ideally situated at one end of the machine and having hydraulic feeds for the variations functions of the machine via suitable valves.
  • the hydraulic power source preferably comprises a variable speed pressure compensated pump driven by an electric motor. Such a pump is preferred in order to give variable speeds and variable torque at various hydraulic motors in order to compensate for different plastics materials, sheet thickness and most particularly roll diameter which, is of course, increases as the roll if formed.
  • the hydraulic pump will preferably feed hydraulic fluid via a valve to a hydraulic motor situated for rotation of said first rotatable part and with a valved feed to said second rotatable part, if present.
  • Rotation of said first rotatable part is for changeover from one mandrel or core to the second mandrel or core when a roll is completed.
  • Hydraulic fluid feed will also go to hydraulic motors for rotation of the mandrels or cores selectively, ie. to one or other of the mandrels or cores.
  • the mandrels or cores are rotated to draw plastics sheet material from sheet material forming apparatus in a continuous fashion. It is important that as a roll of plastics material is completed, the second mandrel or core can be brought into operation as quickly as possible so as not to disrupt continuous formation of the sheet material by the sheet forming apparatus.
  • additional hydraulic fluid feed may be required for a hydraulic cylinder for withdrawal of the core end supporting formation from one end thereof to release the core for removal from the machine and, of course, for pushing said core end supporting formation into the core end for roll formation on the core.
  • the hydraulic cylinder is preferably at the end of the machine remote from the first rotatable part.
  • Further hydraulic fluid feed may be required for expansion and contraction of the mandrels via suitable hydraulic motors or cylinders depending on the shaft movement required.
  • All of the various hydraulic functions of the preferred machines of the invention will be valved for selection of an appropriate functions.
  • Preferably controls for such valves will be at one location to enable easy and quick operation of the machine.
  • a machine 10 for forming rolls of plastics sheet material comprises a supporting framework 12 for a shaft 14 rotatably mounted in bearings at each end. At one end the shaft 14 has a hydraulic motor 16 for rotating the shaft 14 and hence beam 18 mounted on the shaft.
  • the beam 18 has either mandrels 20 rotatably mounted therefrom or support core cones 22 (see Figure 2). The mandrels 20 are rotated by means of hydraulic motors 26.
  • the mandrels 20 are able to expand and contract being formed of leaves 30 loosely held together, which leaves have on their inner surface tapered formations 32 that cooperate with oppositely tapered formations 34 on shaft 36 through the centre of each mandrel.
  • the shafts 36 are each coupled to a hydraulic cylinder 38 whereby longitudinal movement of the shaft 36 in one direction urges the leaves 30 apart and in the other direction allows the leaves to collapse toward each other.
  • cone formations 22 are provided at opposite ends of the machine, which are to fit into opposite end of a roll core 40.
  • the cone formation 22A is coupled to the hydraulic motor 26 for rotating the cone 22A and hence the core 40, whereas the cone formation 22B is coupled to an hydraulic cylinder 46 for movement into and out of engagement with roll core 40.
  • FIG. 5 of the accompanying drawings shows an hydraulic system for operating a machine as shown in any of or all of the drawings.
  • the hydraulic system comprises an electric motor 50 for driving a pressure compensated variable volume pump 52 to give variable speeds and variable torque at the hydraulic motors depending on the product being rolled and roll diameter.
  • the hydraulic pump 52 supplies hydraulic fluid via main feed line 54 and branch line 56 to rotary motor 16 for rotating the shaft 18.
  • the branch line 56 includes valve means 58 for controlling supply of hydraulic fluid to the motor 16.
  • the main feed line 54 enters a rotary valve 60 which direct hydraulic fluid supply to one or other sides of the machine.
  • the hydraulic system for each side of the machine is identical and includes off a feed line 62, valve means 64 and rotary motor 26 for rotating the mandrels 20 or roll support core cones 22A, off a feed line 70 via a valve 72 hydraulic cylinder 38 for expansion and contraction of the mandrels 20 and finally off a feed line 80 via valve means 82, hydraulic cylinder 42 for withdrawal from or insertion into a core 40 core support cone 22B.
  • the illustrated machine operates by picking up the end of a sheet of plastics material from a sheet forming machine onto a rotating mandrel or core and forming a roll thereof on the mandrel or core.
  • the machine then rotates on its central axis to bring the vacant mandrel or core into a working position.
  • the sheet material is cut and the sheet material wound onto the vacant mandrel or core to give continuous production.
  • the first roll is unloaded, which from a mandrel requires contraction thereof so that the roll can be slid off the mandrel and for a core requires withdrawal of cone 22B.
  • the machine remains under constant torque required to wind the product.
  • a machine 200 for forming rolls of plastics sheet material as it comes off a production sheet comprises a frame 202 on wheels 204.
  • the frame 202 has upstanding ends 206 that support in bearings 208 a rotatable shaft 210. Near one end the shaft 210 carries a fixed crosspiece 212 from which extend parallel to the shaft a pair of rotatable mandrels 214 diametrically opposed relative to the shaft. Adjacent the free ends of the mandrels on the shaft 210 are retractable support arms 216.
  • Each mandrel 214 comprises an expansion shaft 218 and outer leaves 220 that are movable towards and away from the core by means of expansion pins 222 that are tapered and which contact oppositely tapered members on the leaves, whereby longitudinal movement thereof relative to the core will cause the leaves to move towards and away from the core as desired.
  • the machine 200 is operated hydraulically and the frame carries at one end an hydraulic fluid tank 224 and an electric motor 226. Hydraulic fluid under pressure is supplied to the main shaft and each of the mandrels via hydraulic piping as shown (see also Figure 7 below).
  • the main shaft requires hydraulic power for motor 228 for rotation thereof via sprockets 229 to swop mandrels when a completed roll has been formed on the one mandrel. The swap over has to be quick so that the plastics sheet production machine can be operated continuously.
  • the main shaft also requires hydraulic power for the retractable support arms 216 which are operated by means of double acting rams 230.
  • the end of each mandrel has a bearing 232 which fits into the end of the support arm to support the mandrel and to allow it to rotate as a roll of plastics material is formed thereon.
  • Hydraulic fluid is also used to operate a disc brake 234 at one end of the main shaft.
  • the mandrels require hydraulic power for their respective motors 250 for rotating same and for their respective double acting cylinders 252 for causing longitudinal movement of the expansion shaft 218 to expand or collapse the mandrel.
  • the pump 102 supplies hydraulic fluid under pressure to valves 104, 106 and 108 for operating each rolling mandrel and the main shaft respectively.
  • a single feed line 110 branches to form separate feed lines 112,114 and 116 to those valves.
  • the valves 104 and 106 for the mandrels each control supply of hydraulic fluid to a double acting support arm piston 120, a mandrel rotate motor 122 and a double acting mandrel expand/contract piston 124.
  • the valves and the feed/return lines therefrom are arranged so that in one valve state the mandrel, expands the mandrel rotates and the support arm engages the free end of the mandrel, and in its other state, the mandrel stops rotating, the mandrel contracts and the support arm is disengaged.
  • the return line from the mandrel motor includes a variable flow restrictor valve 130.
  • the third branch 116 from the pump 102 leads to the valve 108 which directs hydraulic fluid either to a disc brake 136 for the main shaft or a motor 138 for rotating the main shaft.
  • a variable flow restrictor valve 140 is provided beyond the motor 138 in order to control its speed.

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP19900306849 1989-06-23 1990-06-22 Improvements in and relating to machines for forming rolls of plastics material Withdrawn EP0407070A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898914482A GB8914482D0 (en) 1989-06-23 1989-06-23 Improvements in and relating to machines for forming rolls of plastics materials
GB8914482 1989-06-23

Publications (2)

Publication Number Publication Date
EP0407070A2 true EP0407070A2 (de) 1991-01-09
EP0407070A3 EP0407070A3 (en) 1991-06-26

Family

ID=10658967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900306849 Withdrawn EP0407070A3 (en) 1989-06-23 1990-06-22 Improvements in and relating to machines for forming rolls of plastics material

Country Status (2)

Country Link
EP (1) EP0407070A3 (de)
GB (2) GB8914482D0 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996016888A1 (en) * 1994-11-29 1996-06-06 Gianfranco Galimberti Equipment for the production of rolls of web material
FR2727952A1 (fr) * 1994-12-09 1996-06-14 Clecim Sa Bobineuse d'enroulement d'une bande
DE19543046A1 (de) * 1995-11-10 1997-05-15 Mannesmann Ag Karussellhaspel mit zwei Haspeldornen
EP0783956A1 (de) * 1996-01-10 1997-07-16 BURGOPACK STAMPA, TRASFORMAZIONE, IMBALLAGGI S.p.A. Vorrichtung zum kontinuierlichen Heissiegeln von Kunststoff und/oder Papier ähnliche Bändern in ein oder mehrere gegenseitigen Kombinationen
EP0857679A2 (de) 1997-02-06 1998-08-12 WindmÀ¶ller & Hölscher Vorrichtung zum Aufwickeln von bahnförmigem Material
EP0875476A1 (de) * 1997-04-30 1998-11-04 Kvaerner Metals Clecim Wickler mit zwei Spindeln zum Aufwickeln einer Bahn
EP1391406A1 (de) * 2002-08-17 2004-02-25 Werner Mülfarth Vorrichtung zum Aufwickeln von bahn- oder bandförmigen Materialien
EP2039634A1 (de) * 2007-09-20 2009-03-25 Valmet Atlas Plc Bahnwickelmaschinen und Verfahren zum Betrieb von Bahnwickelmaschinen
CN103640920A (zh) * 2013-11-19 2014-03-19 佘峰 一种模切机的胶带驱动装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4414003C2 (de) * 1994-04-22 2000-04-13 Kampf Gmbh & Co Maschf Vorrichtung zum Aufwickeln von Warenbahnen, insbesondere Kunststoffolien in einer zwei Drehscheiben aufweisenden Mehrfach-Wendewickelmaschine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095123A (en) * 1935-08-17 1937-10-05 Self Locking Carton Co Wax paper machine
US2650038A (en) * 1947-03-29 1953-08-25 Crystal Waxing Company Automatic web rewinding machine
GB718569A (en) * 1952-05-03 1954-11-17 Goss Printing Press Co Ltd Improvements in or relating to web supply reel for printing presses
US2969930A (en) * 1958-09-22 1961-01-31 Mercury Engineering Corp Continuous rewinder for web material
GB1210166A (en) * 1968-05-31 1970-10-28 Witton Ltd James Improvements in or relating to reel-stands
US3635415A (en) * 1969-09-08 1972-01-18 Black Clawson Co Winding apparatus
DE2317325B2 (de) * 1973-04-06 1977-02-10 Reifenhäuser KG, 5210 Troisdorf Wickelmaschine
FR2354194A1 (fr) * 1976-06-08 1978-01-06 Dcm Machine pour la realisation de bobineaux de papier constitues de plusieurs bandes enroulees ensemble
GB2138404B (en) * 1983-02-23 1985-09-18 Perfarap Limited Winding apparatus process and product
DE3726113A1 (de) * 1987-08-06 1989-02-16 Leybold Ag Vorrichtung zum beschichten von baendern

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996016888A1 (en) * 1994-11-29 1996-06-06 Gianfranco Galimberti Equipment for the production of rolls of web material
FR2727952A1 (fr) * 1994-12-09 1996-06-14 Clecim Sa Bobineuse d'enroulement d'une bande
US5695150A (en) * 1994-12-09 1997-12-09 Clecim Strip coiler
US5921498A (en) * 1995-11-10 1999-07-13 Mannesmann Aktiengesellschaft Carrousel-type coiler with two coiler drums
DE19543046A1 (de) * 1995-11-10 1997-05-15 Mannesmann Ag Karussellhaspel mit zwei Haspeldornen
EP0783956A1 (de) * 1996-01-10 1997-07-16 BURGOPACK STAMPA, TRASFORMAZIONE, IMBALLAGGI S.p.A. Vorrichtung zum kontinuierlichen Heissiegeln von Kunststoff und/oder Papier ähnliche Bändern in ein oder mehrere gegenseitigen Kombinationen
EP0857679A2 (de) 1997-02-06 1998-08-12 WindmÀ¶ller & Hölscher Vorrichtung zum Aufwickeln von bahnförmigem Material
EP0875476A1 (de) * 1997-04-30 1998-11-04 Kvaerner Metals Clecim Wickler mit zwei Spindeln zum Aufwickeln einer Bahn
FR2762831A1 (fr) * 1997-04-30 1998-11-06 Kvaerner Metals Clecim Bobineuse a deux mandrins pour l'enroulement d'une bande
US6065713A (en) * 1997-04-30 2000-05-23 Kvaerner Metals Clecim Two-chuck coiler for the winding of a band-type product
RU2208569C2 (ru) * 1997-04-30 2003-07-20 Ваи Клесим Моталка с двумя оправками для намотки полосообразного изделия
EP1391406A1 (de) * 2002-08-17 2004-02-25 Werner Mülfarth Vorrichtung zum Aufwickeln von bahn- oder bandförmigen Materialien
EP2039634A1 (de) * 2007-09-20 2009-03-25 Valmet Atlas Plc Bahnwickelmaschinen und Verfahren zum Betrieb von Bahnwickelmaschinen
CN103640920A (zh) * 2013-11-19 2014-03-19 佘峰 一种模切机的胶带驱动装置

Also Published As

Publication number Publication date
GB2233318A (en) 1991-01-09
GB8914482D0 (en) 1989-08-09
GB9013992D0 (en) 1990-08-15
EP0407070A3 (en) 1991-06-26

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