EP0505712A1 - Dispositif et méthode d'enroulement par entraînement de contact - Google Patents

Dispositif et méthode d'enroulement par entraînement de contact Download PDF

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Publication number
EP0505712A1
EP0505712A1 EP92102496A EP92102496A EP0505712A1 EP 0505712 A1 EP0505712 A1 EP 0505712A1 EP 92102496 A EP92102496 A EP 92102496A EP 92102496 A EP92102496 A EP 92102496A EP 0505712 A1 EP0505712 A1 EP 0505712A1
Authority
EP
European Patent Office
Prior art keywords
web
roll
core
slack
vacuum
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Withdrawn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
EP92102496A
Other languages
German (de)
English (en)
Inventor
James E. Hertel
Lawrence J. Oliver
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.)
Paper Converting Machine Co
Original Assignee
Paper Converting Machine 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 Paper Converting Machine Co filed Critical Paper Converting Machine Co
Publication of EP0505712A1 publication Critical patent/EP0505712A1/fr
Withdrawn legal-status Critical Current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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • 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
    • B65H19/24—Accumulating surplus delivered web while changing the web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/30—Supports; Subassemblies; Mountings thereof
    • B65H2402/35—Supports; Subassemblies; Mountings thereof rotating around an axis
    • B65H2402/351—Turntables
    • 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

  • This invention relates to apparatus and method for making convolutely wound logs and, more particularly to logs such as toilet tissue and toweling.
  • stop-start winders (sometimes referred to as “rewinders”) were used to convert jumbo-sized rolls of paper from the paper machine to retail-sized rolls.
  • the critical feature in winding is cutoff and transfer.
  • the small roll or log is wound to its predetermined “count”
  • surface winders have become popular because of being able to avoid the mechanisms used for the decreasing speed characteristic -- thus, being less complex and cheaper. These have employed a three-roll cradle, a stationary winding roll, a second winding roll which could be movable, and a movable rider roll.
  • the web was severed, i.e., "cutoff" by a speed differential to produce tension between a downstream point provided by the contact of the almost-finished log with the stationary winding roll and an upstream point where the core pinched the web.
  • excess material i.e., slack
  • the compensator bar was inadequate to prevent transverse wrinkles, "necking in” resulting in diagonal wrinkles and poor log end quality and possible web breakage because of non-uniform web tensions at high speeds.
  • the inability of the compensator bar to move fast enough to quickly lengthen the web path and absorb virtually all of the slack web is remedied by the introduction of a vacuum roll between the perforator and the station which applies the core to the web.
  • the mechanical compensator bar is still used because it accurately meters out the web slack during the wind cycle but for less critical applications, only the vacuum roll is employed.
  • FIG. 1 shows basic details of the '195 patent.
  • the symbol W designates a web arranged for advance through a longitudinally extending path within the frame 20 of the winder starting from the unwind and passing through the perforator (illustrated schematically) under the influence of draw rolls 34,35.
  • Shown schematically in the upper left portion of FIG. 1 is a hypocycloidal core inserting mechanism 21, the details of which can be seen in co-owned patent 4,723,724.
  • FIG. 1 illustrates the orientation of the web at the end of one winding cycle and the beginning of the next.
  • the web passes over stationary turning bar 22 and into contact with a core C just prior to cutoff transfer.
  • the web continues toward the stationary winding roll 23 which is mounted on the frame 20 at 24.
  • the web W is finally seen to be in the process of being wound into a log L.
  • the log L is contacted by a rider roll 25 carried by a pair of pivotally mounted arms 26 which are pivotally mounted on the frame as at 27.
  • the log L is also contacted by the lower, movable winding roll 28 which together with rolls 23 and 25 form a three-roll cradle.
  • the lower winding roll 28 is carried by pivot arms 29 which pivot around axis 30.
  • the function of the winding roll 28 in this invention is the same as that described in the '195 patent -- this invention being concerned with what happens upstream of the winding roll 28, so the invention has broader application than just to the '195 construction.
  • similar reference numbers are used for similar elements but increased by "100".
  • FIG. 2 is designated 121 and the side frames which define a longitudinally extending path of web travel are designated 120a and 120b in FIG. 3. Omitted in FIG. 2 for the sake of clarity are the unwind and perforator through which the web W is advanced under the influence of the draw rolls 134, 135 in FIGS. 2 and 3.
  • FIGS. 4-7 The function of the vacuum roll 135 in eliminating slack not taken up by the compensator bar 136 can be readily appreciated from a consideration of FIGS. 4-7.
  • the web has been "snapped" between the core C and the log L. This has been brought about a speed differential between the downstream pinch point 137 and the upstream pinch point 138. As seen in Fig. 5, this results in slack S due to the fact that the web on the log L is traveling at the same speed as the web coming to the draw rolls 134, 135 (i.e., line speed) whereas the web in contact with the core C is proceeding more slowly -- due to the fact that the core is confined between the roll 123 and stationary fingers 132. However, tension in the web is maintained by virtue of the vacuum provided by the upper draw roll 135.
  • the compensator bar 136 has moved to the right to cooperate with the vacuum roll 135 in taking up the slack S while still maintaining tension.
  • the wind has commenced on the core C.
  • FIG. 2 there is again the three-roll cradle consisting of stationary winding roll 123, the winding roll 128 and the rider roll 125. Contrary to the path of web W in FIG. 1 where it is fed over turning bar 22 into contact with the core C which is pinched between roll 23 and bar 22, the web path in FIG. 2 enters the three-roll cradle downstream of the point where the stationary winding roll 123 pinches the core C against the pinch bar 131. This permits the core to rotate to bring the glue stripe 139 into confronting contact with the web W and avoid additional slack.
  • the pair of side frames 120a and 120b supports all the rolls in the fashion described in the '195 patent and additionally supports the pinch bar 131 and a transfer bar and stationary fingers 132.
  • the pinch bar 131 is spaced from the fingers 132 (similar to fingers 32 of the '195 construction) by a throat or gap 133 through which the web W passes in traveling from the draw rolls 134, 135.
  • the vacuum roll has plurality of ports 140 (see FIGS. 2 and 3) which communicate with axially extending passages 141 in the roll 135.
  • the vacuum valves 142 Provided at each end of the roll 135 are stationary vacuum valves 142. Vacuum is applied by a hose 143 connected to a vacuum blower (not shown) but which is adapted to provide about 5-50" (125 - 1250 mm) of water.
  • the compensator bar 136 is moved by a positioner belt system 144 (see FIGS. 4-7) operated by a servo motor (not shown).
  • the take-up roll also provides an advancing function by, in effect, "staking" the web to the roll surface.
  • Web slack is caused by the difference of web speed between the draw rolls (linespeed) and the winding rolls. In order to generate tension at transfer, a speed difference is necessary.
  • the web By maintaining tension on the web during the slack generation part of the wind cycle, the web can be controlled to remain generally flat in the cross-machine direction, viz., the machine direction being in the direction of web movement -- the longitudinally extending path. In this way, the tensions during transfer and winding can be spread uniformly across the web and prevent peak tensions from breaking the web. In addition, holding the web under tension in the machine direction helps to maintain tension in the cross-direction and thus reduces the tendency for the web to neck-in immediately following transfer. This allows rolls to be cut nearer the end of the wound log without any loss in roll quality.
EP92102496A 1991-03-20 1992-02-14 Dispositif et méthode d'enroulement par entraînement de contact Withdrawn EP0505712A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67234391A 1991-03-20 1991-03-20
US672343 1991-03-20

Publications (1)

Publication Number Publication Date
EP0505712A1 true EP0505712A1 (fr) 1992-09-30

Family

ID=24698146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92102496A Withdrawn EP0505712A1 (fr) 1991-03-20 1992-02-14 Dispositif et méthode d'enroulement par entraînement de contact

Country Status (4)

Country Link
EP (1) EP0505712A1 (fr)
JP (1) JPH0577983A (fr)
AU (1) AU1084892A (fr)
CA (1) CA2060779A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999032383A1 (fr) * 1997-12-04 1999-07-01 Valmet Corporation Procede et dispositif dans une machine a fabriquer du papier, une coucheuse, une bobineuse intermediaire, un devidoir d'une coupeuse-bobineuse ou dans tout autre dispositif pour le traitement d'une bande
CN114014066A (zh) * 2021-11-25 2022-02-08 安徽华烨特种材料有限公司 浸胶增强材料收卷装置
CN114014065A (zh) * 2021-11-25 2022-02-08 安徽华烨特种材料有限公司 浸胶增强材料收卷装置的卷布轴装填方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200740679A (en) * 2006-04-21 2007-11-01 Chan Li Machinery Co Ltd Paper rolling device of roll paper

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112454A (ja) * 1982-12-17 1984-06-28 Sony Corp テ−プ走行装置
US4828195A (en) * 1988-02-29 1989-05-09 Paper Converting Machine Company Surface winder and method
JPH0248361A (ja) * 1988-08-10 1990-02-19 Mitsubishi Heavy Ind Ltd アンワインダ装置
EP0408526A2 (fr) * 1989-07-11 1991-01-16 FABIO PERINI S.p.A. Dérouleuse pour la formation de rouleaux ou de piles et méthode à cet effet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59112454A (ja) * 1982-12-17 1984-06-28 Sony Corp テ−プ走行装置
US4828195A (en) * 1988-02-29 1989-05-09 Paper Converting Machine Company Surface winder and method
JPH0248361A (ja) * 1988-08-10 1990-02-19 Mitsubishi Heavy Ind Ltd アンワインダ装置
EP0408526A2 (fr) * 1989-07-11 1991-01-16 FABIO PERINI S.p.A. Dérouleuse pour la formation de rouleaux ou de piles et méthode à cet effet

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 212 (M-969)2 May 1990 & JP-A-02 048 361 ( MITSUBISHI HEAVY IND. LTD. ) 19 February 1990 *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 237 (P-310)30 October 1984 & JP-A-59 112 454 ( SONY K.K. ) 28 June 1984 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999032383A1 (fr) * 1997-12-04 1999-07-01 Valmet Corporation Procede et dispositif dans une machine a fabriquer du papier, une coucheuse, une bobineuse intermediaire, un devidoir d'une coupeuse-bobineuse ou dans tout autre dispositif pour le traitement d'une bande
US6464163B1 (en) 1997-12-04 2002-10-15 Metso Paper, Inc. Method and device in a paper machine, coating machine, intermediate winder, unwind stand of a slitter-winder, or in any other device for treatment of a web
US6651923B2 (en) * 1997-12-04 2003-11-25 Metso Paper, Inc. Method and device in a paper machine, coating machine, intermediate winder, unwind stand of a slitter-winder, or in any other device for treatment of a web
CN114014066A (zh) * 2021-11-25 2022-02-08 安徽华烨特种材料有限公司 浸胶增强材料收卷装置
CN114014065A (zh) * 2021-11-25 2022-02-08 安徽华烨特种材料有限公司 浸胶增强材料收卷装置的卷布轴装填方法
CN114014065B (zh) * 2021-11-25 2024-03-01 安徽华烨特种材料有限公司 浸胶增强材料收卷装置的卷布轴装填方法
CN114014066B (zh) * 2021-11-25 2024-03-01 安徽华烨特种材料有限公司 浸胶增强材料收卷装置

Also Published As

Publication number Publication date
AU1084892A (en) 1992-09-24
JPH0577983A (ja) 1993-03-30
CA2060779A1 (fr) 1992-09-21

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