US3537632A - Detachable cover for a pull roll or collar - Google Patents

Detachable cover for a pull roll or collar Download PDF

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Publication number
US3537632A
US3537632A US742369A US3537632DA US3537632A US 3537632 A US3537632 A US 3537632A US 742369 A US742369 A US 742369A US 3537632D A US3537632D A US 3537632DA US 3537632 A US3537632 A US 3537632A
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US
United States
Prior art keywords
collar
cover
split
pull
teeth
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.)
Expired - Lifetime
Application number
US742369A
Other languages
English (en)
Inventor
Raymond S Watson
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.)
WARD TURNER MACHINERY CO
Original Assignee
WARD TURNER MACHINERY 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 WARD TURNER MACHINERY CO filed Critical WARD TURNER MACHINERY CO
Application granted granted Critical
Publication of US3537632A publication Critical patent/US3537632A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/20—Delivering or advancing articles from machines; Advancing articles to or into piles by contact with rotating friction members, e.g. rollers, brushes, or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0638—Construction of the rollers or like rotary separators
    • 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
    • B65H2301/10—Selective handling processes
    • B65H2301/12—Selective handling processes of sheets or web
    • B65H2301/121—Selective handling processes of sheets or web for sheet handling processes, i.e. wherein the web is cut into sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/114—Built-up elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/134—Axle
    • B65H2404/1342—Built-up, i.e. arrangement for mounting axle element on roller body
    • B65H2404/13421—Built-up, i.e. arrangement for mounting axle element on roller body involving two elements, i.e. an element at each end of roller body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/30—Facilitating or easing
    • B65H2601/32—Facilitating or easing entities relating to handling machine
    • B65H2601/324—Removability or inter-changeability of machine parts, e.g. for maintenance
    • 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
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • FIG. 8 INVENTOR Raymond 5. W0 rson ATTORNEY longitudinally and which are gear driven in synchronism.
  • one roll of the pair is made of metal and the opposed roll is covered with a resilient material; or both rolls can be covered with a resilient material.
  • the radial spacing of pull rolls is usually made adjustable to compensate for wear. l-loweventhe resilient covers eventually become worn beyond adjustment and must be replaced. It is also to be point out that's heet fed machines using pull rolls will wear unevenly and no longer feed properly, or can be damaged in a jam-up.
  • Another object of this'invention is to provide pull rolls with covers which snap into place, and aresecure againstcircumundercut from a point above the pitch diameter to a point below the root dia'meter'of the gear and from shoulder 24 to ferential, radial, and axial displacement, without the use of adhesives.
  • Yet another object of this'invention is to provide pull roll assemblies having split covers with smooth and uniformly resilient peripheral areas.
  • Still another object of this invention is to provide pull roll assemblies fashioned to standard machine component, designs, but adaptable to wide a variety of roller types and industrial applications.
  • the essence of this invention lies in provision of pull rolls, collars, and split collars, having circumferential notches and undercuts engaging and securing manually replaceable split covers of resilientmaterial.
  • FIG. 4 is a face view in partial-section of a pull collar and a cover-half
  • FIG. 5 is a section of a mold for making pull'collar covers
  • FIG. 6 is a longitudinal section of a pull roll and cover assembly
  • FIG. 7 is an end view, of the FIG. 6 assembly.
  • FIG. 8 is a section of a further cover configuration, according to this invention.
  • reference numeral l0 depicts a pull collar and cover assembly affixed to a shaft S of part of a typical pull-roll assembly.
  • An identical pull collar is shown at right, in section.
  • Peripheries of the pull collars have resilient covers 14 which bear on ametal roll M.
  • the metal roll is geared at G to rotate with collar shaft S.
  • An extended end of shaft S is rotationally driven by means (not shown).
  • FIG. 2 there is shown a sheet material being pulled through the pull roll assembly by rotation of the pull collar 12 and cover assembly 10, and metal roll M, between which the sheet is caught.
  • the pull collar 12 is shown assembled with half ac'over 14.
  • Collar 12 is preferably made of cast iron, free machining brass, or other suitable metal. It is preferably split as at 13 and as shown in FIG. 4 into two equal parts and 12b, for ready assembly on and removal from, a shaft. The two parts are joined by screws 16, as shown in FIG. 3, and the collar 12 is locked to a chosen shaft by a screw 18.
  • a notched ring or gear having preferably an even number of teeth 22, is formed in the exterior of the collar 12, as shown in FIGS. 3 and 4.
  • teeth No particular number of teeth is required. Uniform tooth size and spacing are preferred but are not essential.
  • the teeth are preferably tapered in both sectional views, narrowing radially outwardly, to facilitate assembly of the cover. This is made clearer later.
  • the shape of commercial timing belt teeth is well suited for the application.
  • the gear is defined axially by a shoulder 24 at the end of the collar, and a groove 26, leaving a circumferential land 28 on the exterior of the collar.
  • Cylindrical holes 30 and 32- are milled between teeth 22a and teeth 22b on opposite ends. of a diameter of the collar and at the split 13.
  • Size of the holes is made such that the teeth are substantially groove 26.
  • Cover 14 is preferably made in two equal parts corresponding to those of the collar 12, the splits being on the same diameter as the splits in thecollar.
  • Preferred material for the cover is solid polyurethane, although rubber or other. flexible material may be used to suit specific applications.
  • FIG. 4 shows one-half of a cover 14 partly assembled on a collar 12 with the free end of the cover shown partly in section.
  • the cover 14 is preferably made by casting polyurethane in a ring mold having the shape of the collar, to secure a close, uniform fit to the teeth 22, the holes 30 and 32, the shoulder 24, groove 26, and land 28;
  • FIG. 5 shows such a mold assembly 38. While the polyurethane is in the mold, the outer part 40 of the mold may be removed and the outside diameter of the polyurethane may be machine finished to the desired tolerance. FIG. 5 will be discussed in more detail later.
  • the polyurethane is removed from the mold by cutting on the previously mentioned split diameter, leaving square ends on the cover 14 as at 34.
  • the cover 14 is readily separated from the collar 12 by manually grasping a cover half at one of the split ends and twisting it; removal otherwise is quite difficult.
  • the cover 14 remains secure in normal use, retained radially by engagement with the holes 30 and 32 at the split ends, retained axially by engagement with .the shoulder 24 and groove 26, and retained circumferentially by engagement with all the teeth 24, to prevent circumferential bunching of the cover 14 when it is pulling sheet material.
  • the portion of the cover 14 which extends over the land 28 is of uniform thickness and thus comprises a uniformly resilient peripheral area, providing smoother roller operation, as well as additional area for pulling sheet material.
  • an advantage of the provision ,of coincident splits in the collar 12 and the cover 14 is that the pull collar assembly can be separated into halves and bolted onto a shaft with the cover 14 in place on the collar 12.
  • FIG. 5 shows a mold assembly 38 for casting covers 14 of solid polyurethane.
  • the outer ring 40 is made of rigid, machinable material such as mild steel, and is closely fitted to the collar mold.
  • An actual collar 12, FlG. 3, may be used as part of the mold.
  • Urethane in plastic form is poured into mold assembly 38 and hardened or cured therein using techniques well known in the art.
  • the outer collar 40 is then removed, the outside diameter of the molded polyurethane cover 14 is machine finished, if not within tolerance, the cover 14 is split by cutting, as previously described, and the cover 14 is removed, ready for use.
  • FIGS. 6 through 8 show several variations on the embodiment of the cover described in reference to FIGS. 1-5, which are also applicable to that embodiment.
  • cover 44 is mounted on a solid roll 46, shown in section. No part of the cover 44 extends over circumferential land 48, although such extension can easily be fashioned to the desired length, as described above.
  • FIG. 7 an end view of HO. 6, illustrates another variation, a single split in the cover, at 50. Since the cover material is chosen to be flexible in most applications, one split can be enough for removal of the cover 50.
  • FIG. 8 a section of a cover 52, shows a variation in proportion, the cover 52 being adapted to fit wide, shallow. teeth, as over the entire length of a roll.
  • the undercut in such case may extend any convenient distance into the roll.
  • metal male heads used in conjunction with covered resilient heads are widely used to score or crease fibre or corrugated board.
  • said undercut between said pair of teeth of said pull roll is a cylindrical aperture arranged substantially parallel to the axis of said pull roll.
  • said resilient cover is composed of solid polyurethane.
  • said pull roll comprises a collar having a split passing through said undercut between said pair of teeth a second pair of teeth on said collar with an undercut therebetween, and a second said split passing therethrough, with said resilient cover having plural splits respectively coincident with said splits in said collar.
  • a radially split resilient cover for a pull roll having a pair of teeth on a circumference thereof and an undercut between said teeth and having a uniform circumference axially adjacent said pair of teeth, with said radially split resilient cover having a tooth thereon with a radial split therebetween for fitting around said circumference of said pull roll in engagement with all said teeth of said roll and in engagement with said undercut adjacent said split of said cover, with said resilient cover having an extension onto said uniform circumference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
US742369A 1968-07-03 1968-07-03 Detachable cover for a pull roll or collar Expired - Lifetime US3537632A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74236968A 1968-07-03 1968-07-03

Publications (1)

Publication Number Publication Date
US3537632A true US3537632A (en) 1970-11-03

Family

ID=24984558

Family Applications (1)

Application Number Title Priority Date Filing Date
US742369A Expired - Lifetime US3537632A (en) 1968-07-03 1968-07-03 Detachable cover for a pull roll or collar

Country Status (6)

Country Link
US (1) US3537632A (nl)
JP (1) JPS5011803B1 (nl)
DE (1) DE1815928A1 (nl)
FR (1) FR1589866A (nl)
GB (1) GB1181749A (nl)
NL (1) NL166899C (nl)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775821A (en) * 1972-12-07 1973-12-04 Globe Rubber Works Inc Elastomeric feed roller
US5451198A (en) * 1994-09-12 1995-09-19 Lancaster; Joseph L. Roller with replaceable sleeve
US5720212A (en) * 1995-03-22 1998-02-24 Robud Locking arrangement for die cutter blanket
US6053103A (en) * 1998-03-24 2000-04-25 Heidelberger Druckmaschinen Aktiengesellschaft Sheet-fed printing press having at least one sheet guide drum
US20070082798A1 (en) * 2005-10-11 2007-04-12 Dicar, Inc. Die cutting/scoring apparatus sheet material driving member
EP1820761A2 (en) * 2006-02-17 2007-08-22 Canon Kabushiki Kaisha Sheet conveying roller having a pipe shaft and apparatus comprising said roller
WO2017189737A1 (en) * 2016-04-26 2017-11-02 Sun Automation, Inc. Feed/pull roll system with detachable elastomeric feed-covers, and process for cover replacement
WO2022125106A1 (en) * 2020-12-10 2022-06-16 Dicar Inc. Die machine and drive member installed thereon

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59118630A (ja) * 1982-12-27 1984-07-09 Toshiba Corp 紙葉類の取出し装置

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775821A (en) * 1972-12-07 1973-12-04 Globe Rubber Works Inc Elastomeric feed roller
US5451198A (en) * 1994-09-12 1995-09-19 Lancaster; Joseph L. Roller with replaceable sleeve
US5720212A (en) * 1995-03-22 1998-02-24 Robud Locking arrangement for die cutter blanket
US6053103A (en) * 1998-03-24 2000-04-25 Heidelberger Druckmaschinen Aktiengesellschaft Sheet-fed printing press having at least one sheet guide drum
US7476191B2 (en) * 2005-10-11 2009-01-13 Dicar, Inc. Die cutting/scoring apparatus sheet material driving member
WO2007044203A1 (en) * 2005-10-11 2007-04-19 Dicar, Inc. Die cutting/scoring apparatus sheet material driving member
US20070082798A1 (en) * 2005-10-11 2007-04-12 Dicar, Inc. Die cutting/scoring apparatus sheet material driving member
EP1820761A2 (en) * 2006-02-17 2007-08-22 Canon Kabushiki Kaisha Sheet conveying roller having a pipe shaft and apparatus comprising said roller
US20070194523A1 (en) * 2006-02-17 2007-08-23 Canon Kabushiki Kaisha Sheet conveying roller, sheet conveying apparatus, and image forming apparatus
EP1820761A3 (en) * 2006-02-17 2008-04-09 Canon Kabushiki Kaisha Sheet conveying roller having a pipe shaft and apparatus comprising said roller
US8052589B2 (en) 2006-02-17 2011-11-08 Canon Kabushiki Kaisha Sheet conveying roller, sheet conveying apparatus, and image forming apparatus
WO2017189737A1 (en) * 2016-04-26 2017-11-02 Sun Automation, Inc. Feed/pull roll system with detachable elastomeric feed-covers, and process for cover replacement
CN109689540A (zh) * 2016-04-26 2019-04-26 太阳自动化股份有限公司 具有可拆卸的弹性体进给覆盖物的进给/拉出辊系统以及用于更换覆盖物的方法
WO2022125106A1 (en) * 2020-12-10 2022-06-16 Dicar Inc. Die machine and drive member installed thereon

Also Published As

Publication number Publication date
DE1815928A1 (de) 1970-02-26
GB1181749A (en) 1970-02-18
NL166899C (nl) 1981-10-15
FR1589866A (nl) 1970-04-06
NL166899B (nl) 1981-05-15
JPS5011803B1 (nl) 1975-05-07
NL6818187A (nl) 1970-01-06

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