EP0528351A1 - Automatische Vorrichtung und Verfahren zum Entfernen der Hülle von einer Rolle - Google Patents

Automatische Vorrichtung und Verfahren zum Entfernen der Hülle von einer Rolle Download PDF

Info

Publication number
EP0528351A1
EP0528351A1 EP92113762A EP92113762A EP0528351A1 EP 0528351 A1 EP0528351 A1 EP 0528351A1 EP 92113762 A EP92113762 A EP 92113762A EP 92113762 A EP92113762 A EP 92113762A EP 0528351 A1 EP0528351 A1 EP 0528351A1
Authority
EP
European Patent Office
Prior art keywords
wrapper
roll
blade
cut
cutting
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Withdrawn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
EP92113762A
Other languages
English (en)
French (fr)
Inventor
Norman W. Dornblaser
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.)
Lamb Grays Harbor Co
Original Assignee
Lamb Grays Harbor Co
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 Lamb Grays Harbor Co filed Critical Lamb Grays Harbor Co
Publication of EP0528351A1 publication Critical patent/EP0528351A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/045—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0033—Unpacking of articles or materials, not otherwise provided for by cutting

Definitions

  • This invention pertains to apparatus and method for automatically removing the wrapper from a cylindrical roll such as a roll of paper such as newsprint paper.
  • Paper rolls are wrapped with one or more layers of heavy wrapping paper to protect the surface of the outer layers of paper on the roll.
  • the wrapped roll usually (but not always) includes "heads,” namely, a disk of paperboard at each end of the roll, which must be removed by another process, manually or mechanically.
  • the remaining wrapper is referred to as the "sleeve.”
  • the paper on the roll will be described as newsprint paper although the invention pertains to any roll protected by a wrapper.
  • Various ways have been employed to cut the wrapper from the roll.
  • One technique is for a workman to merely take a knife, press the blade inwardly against the outer surface of the wrapper at one end of the roll and slice through the wrapper from end to end on the roll. This technique can be injurious to the workman and frequently results in some of the newsprint paper being cut also. This newsprint paper is then wasted.
  • Another manual technique for cutting the wrapper is to start a blunt sloped knife under the outer wrapper and manually push the knife from one end of the roll to the other through the wrapper. This technique tends to be more certain of not cutting the newsprint but is time-consuming and if the workman is not careful the cutting tool can also engage the newsprint damaging the outer layers of newsprint paper.
  • Yet another object of this invention is to provide a means for placing the removed wrapper in condition for convenient handling and disposal.
  • the objects are obtained by moving a knife gauged accurately to a preferred depth along a predetermined cutting path under the wrapper and slit this wrapper from the inside out. In this way the knife can effectively slit through the outer wrapper only.
  • the invention also removes the cut wrapper and discharges the cut wrapper at a location remote from the paper roll.
  • Figure 1 is a front elevation of an apparatus for cutting and removing the wrapper.
  • Figure 2 is an end elevation.
  • Figure 3 is an end elevation of a portion of the apparatus showing the wrapper cutting blade positioned on a roll.
  • Figure 4 is a side elevation of a portion of the wrapper cutting apparatus.
  • Figure 5 is an enlarged detail of the cutting and wrapper removal apparatus.
  • Figure 6 is an enlarged detail of the wrapper removal apparatus.
  • Figure 7 is a plan of the apparatus shown in figure 6.
  • Figure 8 is a plan of the apparatus for removing the wrapper from the wrapper collecting mandrel.
  • Figure 9 is a side elevation of the apparatus shown in Figure 8.
  • Figure 10 is an isometric of the cutting blade.
  • Figures 11A-11D are schematic illustrations showing the steps of removing the wrapper.
  • Figure 12 is a fragmentary view of a sensor for locating the outer edge of the wrapper.
  • Figure 1 illustrates a main frame 10 having a cut wrapper collecting mandrel assembly 12, an air shower tube 13 ( Figure 3) for guiding the cut wrapper into the mandrel assembly, and a wrapper removing assembly 16 for stripping the cut wrapper from off of the mandrel assembly 12.
  • the main frame 10 also supports a cutter carriage 18 vertically and reciprocably mounted.
  • a pair of cylinders 20 raise and lower the carriage via chains and sprockets 21.
  • a movable cutter assembly 22 is raised and lowered on the carriage 18 by a set of hydraulic cylinders 24.
  • the roll will then be rotated at half speed until the outer edge of the wrapper is located on the roll. This is done to position the cutter at the lapped area of the wrapper in the unglued area.
  • the carriage 18 is provided with a rider roller 30 which, when the carriage is lowered, will move down therewith into engagement with a paper roll R located on a pair of rotatable turning rollers 32.
  • the roll will have a wrapper of one or more wraps surrounding the paper of the roll.
  • the rollers are capable of handling wrapped rolls of various diameters such as the second wrapped roll shown in phantom lines R2.
  • the cutter assembly 22 is best shown in Figures 3 and 4 and includes a set of gauge rails 34 to position a cutter blade 36.
  • the cutter carriage 18 will stop downward movement when the rider roller engages the roll R.
  • a photo-capacitive sensor 37 will then sense the presence of the roll R on the rollers 32 and activate the pneumatic cylinders 24 to lower the cutter assembly until the gauge rails 34 are positioned directly on the surface of the wrapper W on the roll.
  • the gauge rails are spaced apart sufficient to allow the forward tip of the cutter blade 36 to enter beneath the outer wrap of the wrapper between .011-.016 inches below the radially outer surface of the wrapper.
  • the cutter blade has a beveled tip 38 ( Figure 10) sloping up and rearwardly to an edge 39 and sloping down on either side from the edge to a flat guide surface 40.
  • the blade thus is intended to be slipped in from an end of the roll under the outermost wrap of the wrapper and tear the wrapper by pushing out from within. In this way, the flat guide surface 40 cannot penetrate beyond the wrap on which it lays when the blade is inserted and the continued movement of the blade from the one end of the roll to the other will have no occasion to penetrate further into the next radially inward wrap of the wrapper.
  • the spacing between the gauge rails 34 is such that the curvature of the roll will be slightly above the bottom surface of the guide rails in the gap between the guide rails and the blade is set to be at the precise dimension given above. This position, of course, can be adjusted if necessary for various types of wrappers.
  • the cutter blade 36 is propelled through the wrapper from one end of the roll to the other by an endless cable drive 42 ( Figure 4) driven by a pneumatic cable cylinder 44.
  • the cable is fixed to a trolley 46 having a plurality of guide wheels 47 that move on a guide track 48.
  • the pneumatic cylinder 44 By actuating the pneumatic cylinder 44, the blade can by moved along the guide track 48 the full length of a roll.
  • the cutter blade is retracted to its original position spaced endwise from the roll, the cutter carriage 18 is raised, and the rollers 32 are rotated to rotate the roll R in the counterclockwise direction as shown in Figures 2 and 3.
  • the air shower tube 13 emits a generally horizontal stream of air to the left as shown in Figure 3.
  • the free end is lifted by the air stream and guided into a guide slot 62 ( Figure 5).
  • the cut free end of the wrapper is moved to the left in Figure 5 by the counterclockwise rotation of the roll R and the air stream from the air stream tube 13 and is drawn up against the surface of the guide bar 61 over the support bar 60 and then into the slot 62.
  • the free end of the wrapper enters the gap between the spaced forks 72 of the cut wrapper collector mandrel assembly 12.
  • a web sensing photo sensor 79 signals the presence of the wrapper just before it enters the coiling mandrel 12. After a short delay the mandrel will start to rotate.
  • the mandrel is best shown in Figures 6 and 7 and includes a motor 70 that rotates a pair of forks 72 carried on a spindle 74. Spindle 74 is driven by a drive belt 76 driven by the motor. The cut wrapper is then fed through the gap or nip 78 between the forks and as the forks rotate the wrapper becomes wrapped around the forks in a coil.
  • the mandrel motor is designed to accelerate to its final speed and once it reaches that speed immediately begins to decelerate slowly. This is to prevent over-tightening of the wrapper coil on the forks. The deceleration curve will be in the range of 50 seconds.
  • the glue holding the inner end of the wrapper W to the roll should release and the inner end of the innermost wrap of the wrapper should pull free.
  • the sensor will open a circuit, stopping the turning rolls 32 thus bringing the rotation of the roll R to a stop and starting a short time delay. After this delay, the mandrel motor will decelerate to a very slow indexing speed and then will shut off with the mandrel forks aligned vertically as shown in Figure 11D.
  • a cylinder 83 swings the motor and forks counterclockwise as shown in Figure 6 away from the roll and raises it into alignment with the collecting roller assembly 16.
  • the collecting roller assembly 16 is best shown in Figures 8 and 9 and includes a set of vertical rollers 82 pivotally mounted on a pivot rod 84 and rotatably driven by belt 86.
  • the belt is carried on sheaves 87 mounted on the pivot rod 84.
  • the pivot rod is rotated by a motor 88.
  • a cylinder 90 connects to linkages 92 and 94 to pivot the rollers toward one another.
  • One roller 82 is driven so that the wrapper can be caught between the nip between the two rollers when the rollers are moved toward one another. The wrapper is thus pulled or stripped off of the mandrel forks.
  • the coil is flattened and driven away from the machine to be received by a cart or container for disposal.
  • the presence of the newsprint paper entering the mandrel assembly will be sensed by a light/dark photo sensor 97 ( Figure 5).
  • the sensor will then close a circuit to actuate a conventional tail cutter which will cut off the newsprint paper.
  • the tail cutter employs a cylinder 98 ( Figure 2) which is connected to the guide bar 60 that carries an elongated wire 99.
  • the wire runs the length of the roll and is a conventional paper cutting wire.
  • a roll such as a newsprint paper roll R, enters the turning rolls 32 and is cushioned to a stop in a conventional manner.
  • a bracket 200 carries a light source 103 and a photo sensor 102 and is pivoted toward the roll by a cylinder 201.
  • the light 103 is directed at the surface of the wrapper.
  • the roll will be rotated in the unwinding direction at a reduced speed.
  • the outer end 108 of the wrapper passes beneath the light, it creates a shadow.
  • the shadow is detected by the photo sensor 102.
  • the cutter carriage 18 is then lowered by the cylinders 20 until the downward motion of the cutter carriage is stopped by the rider roll 30 contacting the roll of newsprint paper.
  • the capacitive proximity sensor 37 ( Figure 3) on the cutter carriage will sense the roll of newsprint paper causing the cutter assembly 22 to be raised by the cylinders 24 relative to the carriage 18.
  • the cutter assembly 22 When the cutter assembly 22 is raised to its upper position, it activates a photo sensor 100.
  • the sensor 100 then signals to begin, slowly rotating the roll counterclockwise to assure the desired overlap area is at the cutting path.
  • the cutter assembly gauge rails 34 will rest on the roll so that the tip 38 of the cutting blade 36 is positioned beneath the outermost wrap on the roll as determined by the gauge rails and beyond the glue area as was determined by the location of the outer end of the wrapper by sensor 102.
  • the lowered presence of the cutter assembly 22 is detected by a sensor 104 which activates the cable cylinder to drive the trolley 46 and cutter blade.
  • the cutter blade then travels along the top of the roll, slitting the wrapper.
  • the cutter assembly is raised, the air shower is emitted from tube 13.
  • the roll is then turned in the unwind direction slowly.
  • the air shower flows over the leading cutting edge of the wrapper, drawing it up and guiding it through the wrapper guide slot 62.
  • the web sensing photo sensor 79 will then signal the presence of the wrapper just before it enters the forks 72 of the coiling mandrel 12. After a short delay, the mandrel will start to rotate as discussed earlier.
  • the glue holding the wrapper to the roll should release and the end of the wrapper should pull free.
  • the photo sensor will open a circuit stopping the turning rolls 32 and starting a short time delay. After this delay, the mandrel motor will decelerate to index speed and then shut off with the mandrel forks aligned vertically.
  • the newsprint paper will be fed through the wrapper guides and sensed by the light/dark photo sensor 97.
  • the photo sensor will actuate the newsprint paper cutter cylinder 99 which will lower the wire 99 and cut off the newsprint paper.
  • the turning rolls 32 will be shut off and the timer will be started as described above. After the time delay, the mandrel motor will be rotated to its indexed position and then shut off. The turning rolls will be reversed to wind up the free end of the newsprint onto the roll R.
  • the cylinder 83 will swing the mandrel upward.
  • the end of the coiled wrapper tube extending beyond the mandrel forks 72 will be fed between the discharge rollers 82.
  • the discharge rollers will be closed on the end of the wrapper tube.
  • the newsprint roll R will also be ejected from the turning rollers 32.
  • the discharge roller motor 88 will start. The discharge rollers will pull the wrapper tube off the mandrel forks, flattening the wrapper tube as it feeds through the rollers and will discharge the flattened wrapper tube into a bin or receptacle.
  • the next roll R of newsprint enters the turning rollers and the sequence repeats.
  • the method of this invention is best shown schematically in Figures 11A-11D.
  • the steps include rotating a roll wrapped with one or more wraps of a wrapper until the outer edge of the wrapper is located, automatically moving a cutting knife having a beveled tip, guided by gauge rails on the roll, along a predetermined cutting path to penetrate beneath the outer wrap at a predetermined distance circumferentially from the sensed wrapper outer edge, drawing the cutting knife through the wrapper from one end of the roll to the other, tearing the wrapper open from the inside out, and rotating the roll while guiding the cut severed end of the wrapper to a gathering location.
  • the method includes sensing the presence of newsprint paper attached to the cut wrapper and cutting the newsprint if it is accidently so attached to the wrapper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Replacement Of Web Rolls (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP92113762A 1991-08-13 1992-08-12 Automatische Vorrichtung und Verfahren zum Entfernen der Hülle von einer Rolle Withdrawn EP0528351A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74429291A 1991-08-13 1991-08-13
US744292 1991-08-13

Publications (1)

Publication Number Publication Date
EP0528351A1 true EP0528351A1 (de) 1993-02-24

Family

ID=24992173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113762A Withdrawn EP0528351A1 (de) 1991-08-13 1992-08-12 Automatische Vorrichtung und Verfahren zum Entfernen der Hülle von einer Rolle

Country Status (4)

Country Link
EP (1) EP0528351A1 (de)
JP (1) JPH07205947A (de)
CA (1) CA2075568A1 (de)
FI (1) FI923606A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634329A1 (de) * 1993-07-14 1995-01-18 Enterprises International, Inc. Automatische Vorrichtung und Verfahren zum Entfernen der Verpackungshülle von einer Rolle
WO1995025040A1 (en) * 1994-03-16 1995-09-21 Jan Jasper Jacob Van Oord Device for opening sheet-like material, such as packing paper, around a cylindrical object
EP1840064A2 (de) * 2006-03-31 2007-10-03 Komori Corporation Vorrichtung zur Herstellung einer Papierrolle
FR2908389A1 (fr) * 2006-11-14 2008-05-16 Armor Inox Sa Dispositif de depochage d'un jambon
CN101693376B (zh) * 2009-10-16 2011-05-25 东莞市恒生机械制造有限公司 一种圆泡绵切割机的控制系统
CN109850292A (zh) * 2018-12-04 2019-06-07 合肥中鼎信息科技股份有限公司 一种自动找中机构
US11458646B2 (en) 2017-02-22 2022-10-04 Core Link Ab Method and apparatus for removing wrapping from rolls

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4657246B2 (ja) * 2007-05-22 2011-03-23 株式会社Ｋｋｓ 巻取紙の自動紙継ぎ用処理装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521347A (en) * 1967-12-26 1970-07-21 Gulf & Western Ind Prod Co Apparatus for removing and disposing of wrapping bands
US4721263A (en) * 1985-01-28 1988-01-26 Japan Tobacco, Inc. Device for automatically stripping and delivering fore end of a paper roll
US4821971A (en) * 1988-03-17 1989-04-18 Kabushiki Kaisha Kaneda Kikai Seisakusho Device for peeling and cutting off surface portions of paper rolls

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521347A (en) * 1967-12-26 1970-07-21 Gulf & Western Ind Prod Co Apparatus for removing and disposing of wrapping bands
US4721263A (en) * 1985-01-28 1988-01-26 Japan Tobacco, Inc. Device for automatically stripping and delivering fore end of a paper roll
US4821971A (en) * 1988-03-17 1989-04-18 Kabushiki Kaisha Kaneda Kikai Seisakusho Device for peeling and cutting off surface portions of paper rolls

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5467676A (en) * 1991-08-13 1995-11-21 Lamb-Grays Harbor Co. Automatic roll wrapper removing apparatus and method
EP0634329A1 (de) * 1993-07-14 1995-01-18 Enterprises International, Inc. Automatische Vorrichtung und Verfahren zum Entfernen der Verpackungshülle von einer Rolle
WO1995025040A1 (en) * 1994-03-16 1995-09-21 Jan Jasper Jacob Van Oord Device for opening sheet-like material, such as packing paper, around a cylindrical object
EP1840064A2 (de) * 2006-03-31 2007-10-03 Komori Corporation Vorrichtung zur Herstellung einer Papierrolle
EP1840064A3 (de) * 2006-03-31 2009-07-29 Komori Corporation Vorrichtung zur Herstellung einer Papierrolle
FR2908389A1 (fr) * 2006-11-14 2008-05-16 Armor Inox Sa Dispositif de depochage d'un jambon
EP1923315A1 (de) * 2006-11-14 2008-05-21 Armor Inox Sa Verfahren zum Entfernen einer Tasche von einem brotartigen Lebensmittel
CN101693376B (zh) * 2009-10-16 2011-05-25 东莞市恒生机械制造有限公司 一种圆泡绵切割机的控制系统
US11458646B2 (en) 2017-02-22 2022-10-04 Core Link Ab Method and apparatus for removing wrapping from rolls
CN109850292A (zh) * 2018-12-04 2019-06-07 合肥中鼎信息科技股份有限公司 一种自动找中机构
CN109850292B (zh) * 2018-12-04 2023-09-22 合肥中鼎信息科技股份有限公司 一种自动找中机构

Also Published As

Publication number Publication date
FI923606A (fi) 1993-02-14
FI923606A0 (fi) 1992-08-12
CA2075568A1 (en) 1993-02-14
JPH07205947A (ja) 1995-08-08

Similar Documents

Publication Publication Date Title
US5467676A (en) Automatic roll wrapper removing apparatus and method
US4516735A (en) Method and apparatus for winding webs
US4422588A (en) Slitter-rewinder system
FI91054C (fi) Menetelmä ja laite tuoteradan automaattista katkaisua ja rullausta varten
US5318237A (en) Air horn for web winding machine
US5022597A (en) Sheet winding apparatus
FR2623176A1 (fr) Appareillage et procede pour traiter la partie d'extremite d'une feuille de papier en rouleau disposee en un emplacement de raccordement
CA1229547A (en) Automatic roll change
CA2050002C (en) Apparatus and method for deheading and disposing of the head, wrapper crimp and plug from a paper roll
EP0528351A1 (de) Automatische Vorrichtung und Verfahren zum Entfernen der Hülle von einer Rolle
US6228205B1 (en) Apparatus and method for forming a splice in advancing web of paper
US6286419B1 (en) Apparatus for rolling compressible sheet material
FI90754B (fi) Purkauslaite paperi- ja kartonkirataa varten
US6051092A (en) Method and apparatus for recycling cores
US4930711A (en) Automatic defect cutting assembly for a continuous fabric winder
US20070170293A1 (en) Method for unpacking a paper reel and device for carrying out the method
US5462165A (en) Paper reel, paper reel unpacking station for unpacking the paper reel, and process for unpacking the paper reel
US4872301A (en) Packaging machinery and a method of making a wrap-around shipper package
EP0481567A1 (de) Automatische Vorrichtung zum peripheren Umhüllen von Rollen aus Streifenmaterial wie z.B. Textilstoffen
US4924654A (en) Packaging machinery and a method of making a wrap-around shipper package
US5875989A (en) Start up apparatus and method for winding a web roll
US4700529A (en) Roll banding machine and method
GB2179927A (en) Apparatus for the continuous feed of a strip shaped material to a processing machine
EP0755893A2 (de) Verfahren und Vorrichtung zur Wiederverwertung von Wickelkernen
CA2267635A1 (en) Method and apparatus for recycling strapping

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB SE

17P Request for examination filed

Effective date: 19930713

17Q First examination report despatched

Effective date: 19950124

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19950804