US3744111A - Roll for a damming roller train - Google Patents

Roll for a damming roller train Download PDF

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Publication number
US3744111A
US3744111A US00241705A US3744111DA US3744111A US 3744111 A US3744111 A US 3744111A US 00241705 A US00241705 A US 00241705A US 3744111D A US3744111D A US 3744111DA US 3744111 A US3744111 A US 3744111A
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US
United States
Prior art keywords
roll
small rollers
main shaft
disc
disc members
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
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US00241705A
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English (en)
Inventor
K Stumpf
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Individual
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Individual
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Publication of US3744111A publication Critical patent/US3744111A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00—Roller-ways
    • B65G13/02—Roller-ways having driven rollers
    • B65G13/06—Roller driving means
    • B65G13/073—Roller driving means comprising free-wheel gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • B65G47/26—Devices influencing the relative position or the attitude of articles during transit by conveyors arranging the articles, e.g. varying spacing between individual articles
    • B65G47/261—Accumulating articles

Definitions

  • a roll for use in a damming roller train includes a central shaft having at least two spaced parallel disc mem- [52] U S Cl 29/ll6 R 198/129 226/190 bers connected therewith.
  • a series of small rollers sur- [51] Int Cl l. Bzlb 13/02 round the central shaft, in parallel relation thereto, 58] R n1 R with such small rollers being mounted between the disc A d 6 members, The frictional pressure on the small rollers is adjusted to normally prevent as such small rollers from [56] References Cited rotating as revolve about the central shaft, during the conveying of material along the roller train.
  • a damming roller train is a roller train of the type wherein material can be conveyed across the surface thereof, but wherein the flow of material can also be dammed temporarily, thus stopping the conveyance of material across the roller train. During this dammed period the material which is conveyed rests upon the surface of one or more rolls of the roller train in a substantially stationary position. Then, when the damming is interrupted, the material on the roller train is once again conveyed forwardly.
  • roller trains are customarily provided with some drive means for positively rotating the rolls in a forward direction to effect conveyance
  • some means or mechanism must be provided for assuring that the roller train or the individual rolls thereof will not be damaged during a damming operation wherein the heavyweight of the material being conveyed may rest upon one or more rolls in the roller train itself.
  • this was compensated for by providing a damming roller train which included various motors, sprocket wheels, terminal switches, rod locks and various rod systems.
  • Another alternative arrangement for a damming roller train was one where the rolls were driven by a profile belt operated by means of slip clutches.
  • the clutches were operated by cable lines by the moving material starting up at swiveling lugs and turning off of the rolls. Springs in the clutches switched the clutches on again when the moving material passed beyond the swiveling lugs.
  • the problem with these known types of damming roller trains was that their design was expensive and costly because of the large number of necessary parts therein. Additionally, failure of anyone part could necessarily affect the operation of the entire damming roller train and the presence of such a large number of intricate and cooperating parts meant that frequent repairs could be expected in which event the roller train was out of operation.
  • Another object of the present invention is to provide a simplified roll for a damming roller train wherein the number of moving parts and cooperating elements are minimized so that the roll can be expected to have an extended period of maintenance free operation.
  • a damming roller train which includes a central shaft having at least two spaced parallel disc members connected therewith.
  • a series of small rollers surround the central shaft, in parallel relation thereto, with such small rollers being mounted between the disc members.
  • the frictional pressure on the small rollers is adjusted to normally prevent such small rollers from rotating as they revolve about the central shaft, during the conveying of material along the roller train.
  • the flow of material along the roller train is dammed,
  • FIG. 1 is an elevational view of one embodiment of a roll in accordance with the principles of the present invention, shown partially in section as taken along the line A-A of FIG. 2;
  • FIG. 2 is a partial sectional view of the roll of FIG. 1, taken along the line 8-8 of FIG. 1;
  • FIG. 3 is an elevational view showing multiple units of the type shown in FIG. 1 assembled together to form a broad elongated roll;
  • FIG. 4 is an elevational view, partly in section, of another embodiment of the roll of the present invention, such sectional view being taken along the line C-C of FIG. 5;
  • FIG. 5 is a partial cross sectional view of the roll of FIG. 4, taken along the line D-D of FIG. 4;
  • FIG. 6 is a schematic illustration of the manner in which the roll of the FIG. 4 and FIG. 5 embodiment operates during a conveying operation of the roller train;
  • FIG. 7 is a schematic view, similar to FIG. 6, but showing the roll of the FIG. 4 and FIG. 5 embodiment as it operates when the material being conveyed along the roller train is dammed;
  • FIG. 8 is an end view of a slightly modified embodiment of the roll of the present invention.
  • FIG. 9 is an elevational view, partly in section, of a roll of the embodiment shown in FIG. 8;
  • FIG. 10 is a fragmentary elevational view showing the manner of mounting one of the small rollers.
  • FIG. 11 is a fragmentary sectional view showing another means for mounting one of the small rollers.
  • FIG. 1 includes a square tubular central shaft 1, the central axis of which forms the central axis for the roll unit.
  • a threaded shaft 3 is mounted in the left end of the square shaft 1 and serves as a mounting means for a nut 4.
  • a tightening pin 6 is used to maintain the threaded shaft 3 within the square shaft 1.
  • a pair of spaced parallel disc members 7 are provided, each such disc member having a central aperture means therein for receiving the square shaft 1.
  • the central aperture in each disc member 7 is formed in the shape of an eight point star.
  • a stop disc 2 is provided, while at the other end of the roll, a washer 5 is interposed between the nut 4 and the disc member 7.
  • a series of small rollers 8 are provided, each of which is mounted rotatably upon its own axle 9.
  • the central axis of the axle 9 constitutes the axis of rotation for the small rollers 8, and each such axis of rotation is parallel to the central axis of the shaft 1, which forms the central axis for the entire roll.
  • the small rollers are mounted between the disc member 7 by having the ends of the axles 9 mounted in friction bearings 10 which are carried in equally spaced relation about the disc member 7, as can be seen best from FIG. 2.
  • the friction bearings 10 include flanges 11 which are interposed between the inner surfaces of the disc member 7 and the ends of the body portions 8 of the small roll ers.
  • a substantial number of roll elements such as the type shown in the FIG. 1 embodiment would be disposed in line with one another so that the upper surfaces thereof provide a means for conveying material. So long as the material is being conveyed due to rotation of the roll about its central shaft, the small rollers will be prevented by frictionalpressure from easily turning about their own axes of rotation through the axles 9. However, when the roller train is dammed temporarily, the material which Otherwise would be conveyed thereacross might temporarily come to rest on top of the roll element shown in FIGS. 1 and 2. In such instance, as the roll continue to rotate about its central axis, due to the driving force of the sprocket 14, the small rolls 8 can easily rotate about their axes as they pass beneath the resting weightof the conveyed material.
  • FIG. 3 there is provided a roll formed of three separate rolls analogous to those disclosed in FIGS. 1 and 2. It will be noted that in FIG. 3 there are three separate sets of disc members 7, each of which has a series of small rollers 8 mounted therebetween. In order to decrease the polygonal effect, the small rollers can be staggered or angularlyoffset from one roll to the next. Thus, as one set of disc members 7 and small rollers 8 is slipped onto the square center shaft 1, the edges of the square center shaft engage in four points of the eight point star centralaperture. The next adjacent set of rolls is turned in such a way as to fit into the other four points of the eight point star hole. Thus, as shown in FIG. 3, the net result of such arrangement is that the small rollers 8 are staggered from'one adjacent roll element to the next.
  • a central ring 19 is rotatably mounted, with such ring bearing against the inner surfaces of the small rollers 8, again as can best be seen in FIG. 5.
  • Spacer bushings 20 loosely surround the shaft 15 and extend between each end of the central ring 19 and the inner end of the disc members 7.
  • the same standards 12, shaft bearings 13 and drive sprocket 14 are provided for driving the roll.
  • the frictional pressure in the embodiment of FIGS. 4 and 5 is provided by proper dimensioning of the cylindricaljacket l7 and the inner ring 19. Ordinarily, the fit of these parts is tight enough so that as the central shaft 15 rotates, the small rollers 8 will not be rotated about their axles 9. This is illustrated schematically in FIG. 6 which is intended to portray the normal conveying operation of the damming roller train. However, when the material being conveyed by the rollertrain is dammed so that a downward weight or force is applied, as shown in FIG. 7, such force applies a pressure to the cylindrical jacket which causes such jacket to stop its rotation. In such event, the small rollers 8 will start to rotate along the inside surface of the jacket 17 as the sprocket continues to drive the roll.
  • a cone member 21 can be applied across the outside of the cylindrical jacket 17. This is particularly useful for forming curves in the roller train. In so using the cones, the diameter of the rolls in the roller train can increase from the inside radius of the curve toward the outside radius of the curve, thus facilitating conveying of the material about the curve.
  • the disc member 7 and the small rollers 8 can be formed of plastic material and this type of embodiment is not'only simple to manufacture, but is easily used for conveying and damming of light weight materials.
  • Each disc member 7 is provided with double the number of bores or holes than there will be small rollers. That is, in the FIG. 8 embodiment, each disc member 7 is provided with 16 holes even though anyone disc member will be used to mount only eight small rollers.
  • the axles 9 can be fabricated of a steel material and such axles project beyond the roller bodies 9 and fit into the holes in the plastic disc member 7. Alternatively, as shown in the lowermost right hand corner of FIG. 9, the axle need not be continuous, and instead, a small round metal pin may extend between the hole in the plastic disc member and a blind hole in the end of the roller body 8.
  • FIGS. 10 and 11 Still other means for mounting the small rollers to the disc members are shown in FIGS. 10 and 11.
  • the small roller body 8 is formed as a hollow steel tube through which the axle 22 passes.
  • a ball bearing shown in FIGS. 4 and 5 it will be seen that the central shaft 15 is a round shaft and that the holes in the disc members 7 are round, such disc members being fixedly connected to the round shaft by means of a pin as shown in FIG. 4.
  • the axles 9 for the small rollers 8 are mounted in ball bearings carried in spaced relationship about the disc member 7.
  • a cylindricaljacket 17 completely'surrounds all of the small rollers and engages against the outer surfaces thereof, as can be seen'from FIG. 5 and cover members 18 are attached adjacent the discs 7 to prevent cylindricaljacket 17 from shifting axially with respect to the main shaft 15.
  • the small roller 16 is mounted between the tube and the axle and the axle itself'can then be non-rotatably connected to the disc member 7.
  • the small roller can again be formed as a hollow'steel tube 8' having a friction bearing 24 fit into the end thereof and having a pin 23 extending from such friction bearing into the hole .
  • the friction bearing 24 can be formed of sintered metal.
  • a roll for a damming roller train comprising:
  • a main shaft having an axis of elongation which forms the central axis of the roll
  • disc means connected to said main shaft for concurrent rotation therewith, said disc means including at least a pair of spaced parallel disc members;
  • a roll as defined in claim 1 wherein said mounting means comprises bearings connected to said spaced parallel disc members.
  • a roll as defined in claim 1 wherein two pairs of spaced parallel disc members are provided and wherein the small rollers between one pair of disc members are angularly offset from the small rollers between the other pair of disc members.
  • a roll as defined in claim 1 wherein said means for adjusting the frictional pressure on said small rollers comprises:
  • a ring member rotatably mounted on said main shaft and engaged against the inside surface of said small rollers
  • a roll as defined in claim 5 further including spacer bushings rotatably mounted on said main shaft between each end of said ring member and the adjacent disc member, to prevent said ring member from shifting axially along said main shaft.
  • a roll as defined in claim 5 further including cover members connected with each disc member and engageable with the ends of said cylindrical jacket to prevent said jacket from shifting axially with respect to said main shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Chain Conveyers (AREA)
US00241705A 1971-08-16 1972-04-06 Roll for a damming roller train Expired - Lifetime US3744111A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2140921A DE2140921A1 (de) 1971-08-16 1971-08-16 Rolle fuer staurollenbahnen

Publications (1)

Publication Number Publication Date
US3744111A true US3744111A (en) 1973-07-10

Family

ID=5816828

Family Applications (1)

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US00241705A Expired - Lifetime US3744111A (en) 1971-08-16 1972-04-06 Roll for a damming roller train

Country Status (7)

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US (1) US3744111A (enExample)
JP (1) JPS4829176A (enExample)
CH (1) CH546686A (enExample)
DE (1) DE2140921A1 (enExample)
FR (1) FR2149340B3 (enExample)
GB (1) GB1321348A (enExample)
IT (1) IT947288B (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805870A1 (de) * 1988-02-25 1989-09-07 Maertens H Gmbh Co Kg Foerdervorrichtung fuer spreizanlagen und dergl.
US5531315A (en) * 1993-08-12 1996-07-02 Kabushiki Gaisha Ishii Hyoki Apparatus for carrying extra-thin printed boards, etc.
US20050285311A1 (en) * 2004-06-28 2005-12-29 Audet Paul A Process and apparatus for pumping gases in a film
CN102295148A (zh) * 2011-06-02 2011-12-28 黄中山 传送带辊子
CN104986532A (zh) * 2015-07-12 2015-10-21 安徽捷迅光电技术有限公司 防挤料硅胶花辊装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556745Y2 (enExample) * 1976-03-16 1980-02-15
JP2807143B2 (ja) * 1993-06-01 1998-10-08 博英 河瀬 ローラコンベアの搬送用ローラ

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US164004A (en) * 1875-06-01 Improvement in washing-machines
US243179A (en) * 1881-06-21 waeckmeisteb
GB190526049A (en) * 1905-12-14 1906-08-30 Internat Shoe Findings Ltd Improvements in or relating to Apparatus for Burnishing the Soles and Heels of Boots and Shoes, and for analogous purposes.
US1114445A (en) * 1913-10-04 1914-10-20 Sidney S Cameron Toe-forming machine.
US2395450A (en) * 1944-12-19 1946-02-26 Du Pont Tool
US2506372A (en) * 1947-11-12 1950-05-02 Athey Products Corp Idler roller and cleaner assembly for use with belt conveyers
DE1143293B (de) * 1959-01-19 1963-02-07 Morat Gmbh Franz Fadenliefervorrichtung fuer Textilmaschinen, insbesondere Strick- und Wirkmaschinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US164004A (en) * 1875-06-01 Improvement in washing-machines
US243179A (en) * 1881-06-21 waeckmeisteb
GB190526049A (en) * 1905-12-14 1906-08-30 Internat Shoe Findings Ltd Improvements in or relating to Apparatus for Burnishing the Soles and Heels of Boots and Shoes, and for analogous purposes.
US1114445A (en) * 1913-10-04 1914-10-20 Sidney S Cameron Toe-forming machine.
US2395450A (en) * 1944-12-19 1946-02-26 Du Pont Tool
US2506372A (en) * 1947-11-12 1950-05-02 Athey Products Corp Idler roller and cleaner assembly for use with belt conveyers
DE1143293B (de) * 1959-01-19 1963-02-07 Morat Gmbh Franz Fadenliefervorrichtung fuer Textilmaschinen, insbesondere Strick- und Wirkmaschinen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805870A1 (de) * 1988-02-25 1989-09-07 Maertens H Gmbh Co Kg Foerdervorrichtung fuer spreizanlagen und dergl.
US5531315A (en) * 1993-08-12 1996-07-02 Kabushiki Gaisha Ishii Hyoki Apparatus for carrying extra-thin printed boards, etc.
US20050285311A1 (en) * 2004-06-28 2005-12-29 Audet Paul A Process and apparatus for pumping gases in a film
US7500841B2 (en) 2004-06-28 2009-03-10 Cryovac, Inc. Apparatus for pumping gases in a film
US20090096135A1 (en) * 2004-06-28 2009-04-16 Cryovac, Inc. Process and Apparatus for Pumping Gases in a Film
US7687010B2 (en) 2004-06-28 2010-03-30 Cryovac, Inc. Process and apparatus for pumping gases in a film
CN102295148A (zh) * 2011-06-02 2011-12-28 黄中山 传送带辊子
CN104986532A (zh) * 2015-07-12 2015-10-21 安徽捷迅光电技术有限公司 防挤料硅胶花辊装置

Also Published As

Publication number Publication date
GB1321348A (en) 1973-06-27
FR2149340B3 (enExample) 1975-08-08
IT947288B (it) 1973-05-21
FR2149340A1 (enExample) 1973-03-30
JPS4829176A (enExample) 1973-04-18
CH546686A (de) 1974-03-15
DE2140921A1 (de) 1973-03-01

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