US2756870A - Roller table with pivoted sweep arms - Google Patents

Roller table with pivoted sweep arms Download PDF

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US2756870A
US2756870A US502474A US50247455A US2756870A US 2756870 A US2756870 A US 2756870A US 502474 A US502474 A US 502474A US 50247455 A US50247455 A US 50247455A US 2756870 A US2756870 A US 2756870A
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United States
Prior art keywords
rollers
roller table
sweep arms
sweep
arms
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US502474A
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Clark Robert
Molnar John
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United States Steel Corp
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United States Steel Corp
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    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/10—Feeding, e.g. conveying, single articles
    • B65B35/20—Feeding, e.g. conveying, single articles by reciprocating or oscillatory pushers
    • 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
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/06—Bundling coils of wire or like annular objects
    • 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
    • B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
    • B65G25/04—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors
    • B65G25/08—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors having impellers, e.g. pushers
    • 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
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/121—Perforated article handling

Definitions

  • This invention relates to an improved'roller table and cooperating sweep arms for handling articles such as bundles of wire.
  • the mechanism of our invention is intended especially for use as a component of a commercially available automatic strapping machine, which we understand constitutes the subject of one or more pending applications filed by others.
  • our roller table supports bundles of wire and our sweep arms push them singly into the actual strapping mechanism. Their operation of course is coordinated with that of the rest of the machine in the same manner as the sweep arms which the manufacturer supplies with this machine.
  • Another improvement in the same mechanism forms the subject of a copending application Serial No. 406,965, filed January 29, 1954, by George B. Hall. Nevertheless it is ap- 1 beneath the rollers 12,.
  • each vertical leg 20 bear directly against the bundle, and there is nothing to prevent the lower convolutions from snarling with these
  • the inside face of each vertical leg 20 carries a bundle engaging element 21.
  • each element 21 includes a tubular body 22 which is welded to the leg 20 and carries a cap 23 at its upper end.
  • a plunger 24 is slidably mounted in the body 22, and has an integral foot 25 projecting therefrom at its lower end.
  • the upper portion of the plunger is of reduced diameter and extends through an opening in the cap 23 and carries nuts 26 to limit relative downward movement.
  • a compression spring 27 encircles the reduced upper'portion of the plunger 24 within the body 22 and urges the plunger downwardly to the limit permitted by engagement of the nuts 26 with the top of the cap 23.
  • the foot 25 extends somewhat below the bundle supporting surfaces of the rollers 12.
  • the main object of the present invention is to provide an improved roller table and cooperating sweep arms which overcome the tendency of wire convolutions to work their way between the arms and the rollers.
  • a more specific object is to provide an improved combination of roller table and sweep arms in which the latter have bundle engaging elements that extend below the supporting surfaces of the roller table, and the rollers of this table have series of offset circumferential grooves arranged in arcuate patterns to accommodate said elements.
  • Figure 1 is a top plan view of a roller table and sweep arms constructed in accordance with our invention
  • Figure 2 is a side elevational view of the mechanism shown in Figure 1;
  • Figure 3 is a vertical sectional view on a larger scale on line IIIIII of Figure 1.
  • Figures 1 and 2 show a roller table which comprises a frame 10 and a plurality of idler rollers 12 journaled therein to rotate on horizontal axes.
  • Horizontally extending brackets 13 and 14 are fixed to opposite sides of the frame 10.
  • Sweep arms 15 and 16 are journaled to the respective brackets 13 and 14 to pivot on vertical axes.
  • Each sweep arm includes a vertical shaft portion 17, a pair of angularly related horizontal segments 18 and 19, and a vertical leg 20, all rigidly connected to one another.
  • the arms are power driven by mechanism, not shown, but situated body 22 carries a set screw 30 which rides in a keyway 31 in the plunger 24 to prevent rotation of the latter.
  • the rollers over which the sweep arms 15 and 16 travel have two series of offset circumferential grooves 28 and 29 to accommodate the feet as the sweep arms pivot to move a bundle. These respective sets of grooves are arranged in arcuatc patterns centered about the pivotal axes of the two sweep arms.
  • the sweep arms 15 and 16 are driven in the usual way to propel the bundle W along the rollers 12.
  • the feet 25 extend below the bottom convolutions of the bundle and ride in the respective series of grooves 28 and 29.
  • the springs 27 urge the plungers 24 and the feet downwardly approximately into contact with the bottoms of these grooves. Consequently the feet remain below the bundle supporting surfaces of the rollers and overcome any tendency of the bottom convolutions to become snarled with the sweep arms.
  • the mechanism constructed as described is suitable to use in modifying existing installations in which the sweep arms are constructed as shown.
  • the bundle engaging elements 21 can be welded to the legs 20 without otherwise modifying the sweep arms.
  • the legs 20 can be eliminated altogether, and the bundle engaging elements connected directly to the extremities of the arm segments 19.
  • a roller table including a frame and a plurality of parallel article supporting rollers journaled therein, and a sweep arm pivoted on an axis at right angles to those of said rollers for pushing articles along said table and including an article engaging element adapted to travel over said rollers and extending below the article supporting surfaces thereof, said rollers having a series of offset circumferential grooves arranged in an arcuate pattern centered about the axis of pivoting of said arm to accommodate the lower portion of said element.
  • a roller table including a frame and a plurality of parallel article supporting rollers journaled therein, and a sweep arm for pushing articles along said Patented July 31, 1956 table, 'said sweep arm including a shaft pivoted on an axis at right angles to those of said rollers, segments extending from said shaft and adapted to overlie said rollers, and an article engaging element at the extremity of said segments extending below the article supporting surfaces of said rollers, said rollers having a series of offset circumferential grooves arranged in an arcuate pattern centered about the pivotal axis of said shaft to accommodate the lower portion of said element.
  • a roller table including a frame and a plurality of articles supporting rollers journaled therein on parallel horizontal axes, and a sweep arm for pushing articles along said table, said sweep arm including a shaft pivoted on a vertical axis alongside said frame, angularly related segments extending from said shaft and adapted to overlie said rollers, and an article engaging element at the extremity of said segments having a foot which extends below the article supporting surfaces of said rollers, said rollers having a series of offset circumferential grooves arranged in an arcuate pattern centered about the pivotal axis of said shaft to accommodate said foot.
  • a roller table including a frame and a plurality of article supporting rollers journaled therein on parallel horizontal axes, and a sweep arm for pushing articles along said table, said sweep arm including a shaft pivoted on a vertical axis alongside said frame, angularly related segments extending from said shaft and adapted to overlie said rollers, an article engaging element 1 at the extremity of said segments having a foot which extends below the article supporting surfaces of said rollers and is adapted to project underneath articles supported thereon, and spring means in said element urging said foot downwardly, said rollers having a series of offset circumferential grooves arranged in an arcuate pattern 4 centered about the pivotal axis of said shaft to accommodate said foot.
  • a roller table including a frame and a plurality of parallel article supporting rollers journaled therein, and a pair of sweep arms mounted on opposite sides of said frame for pushing articles along said table, each of said sweep arms including a shaft pivoted on an axis at right angles to those of said rollers, segments extending from said shaft and adapted to overlie said rollers, and an article engaging element at the extremity of said segments extending below the article supporting surfaces of said rollers, said rollers having two series of offset circumferential grooves arranged in arcuate patterns centered about the respective pivotal axes of the shafts of the two sweep arms to accommodate the lower portions of said elements.
  • a roller table including a frame and a plurality of article supporting rollers journaled therein on parallel horizontal axes, and a pair of sweep arms mounted on opposite sides of said frame for pushing articles along said table, each of said sweep arms including a shaft pivoted on a vertical axis alongside said frame, angularly related segments extending from said shaft and adapted to overlie said rollers, an article engaging element at the extremity of said segments having a foot which extends below the article supporting surfaces of said rollers and is adapted to project underneath articles supported thereon, and spring means in said element urging said foot downwardly, said rollers having two series of offset circumferential grooves arranged in arcuate patterns centered about the respective pivotal axes of the shafts of the two sweep arms to accommodate said feet.

Description

July 31, 1956 R. CLARK' ETAL ROLLER TABLE WITH PIVOTED SWEEP ARMS Filed April 19, 1955 LE r 3 7 2 0 5 T n H W i @fi g Mm m a F i 2 fl m m M United States Patent ROLLER TABLE WITH PIVOTED SWEEP ARMS Robert Clark, Parma, and John Molnar, Berea, Ohio,
assignors to United States Steel Corporation, a corporation of New Jersey Application April 19,1955, Serial No. 502,474
6 Claims. Cl. 198-218) This invention relates to an improved'roller table and cooperating sweep arms for handling articles such as bundles of wire.
The mechanism of our invention is intended especially for use as a component of a commercially available automatic strapping machine, which we understand constitutes the subject of one or more pending applications filed by others. When used in this machine, our roller table supports bundles of wire and our sweep arms push them singly into the actual strapping mechanism. Their operation of course is coordinated with that of the rest of the machine in the same manner as the sweep arms which the manufacturer supplies with this machine. Another improvement in the same mechanism forms the subject of a copending application Serial No. 406,965, filed January 29, 1954, by George B. Hall. Nevertheless it is ap- 1 beneath the rollers 12,.
In the usual operation of the machine, a bundle of wire W is deposited on the rollers 12, and at the proper time the sweep arms and 16 automatically push the bundle along the table into the strapping mechanism, not shown. Reference can be made to the aforementioned Hall application for a disclosure of a typical mechanism for actuating the sweep arms. In the absence of our improvements, the vertical legs 20 bear directly against the bundle, and there is nothing to prevent the lower convolutions from snarling with these In accordance with our invention, the inside face of each vertical leg 20 carries a bundle engaging element 21. As Figure 3 best shows, each element 21 includes a tubular body 22 which is welded to the leg 20 and carries a cap 23 at its upper end. A plunger 24 is slidably mounted in the body 22, and has an integral foot 25 projecting therefrom at its lower end. The upper portion of the plunger is of reduced diameter and extends through an opening in the cap 23 and carries nuts 26 to limit relative downward movement. A compression spring 27 encircles the reduced upper'portion of the plunger 24 within the body 22 and urges the plunger downwardly to the limit permitted by engagement of the nuts 26 with the top of the cap 23. The foot 25 extends somewhat below the bundle supporting surfaces of the rollers 12. The
countered.
One difliculty in using sweep arms for pushing bundles of wire on a roller table is that the bottom convolutions of a bundle tend to snarl and wedge between the rollers and the lower extremities of the sweep arms. Under extreme conditions this action can jam the machine, but in any event it is undesirable since a tight, well-formed bundle is needed for applying a strap or other tie.
The main object of the present invention is to provide an improved roller table and cooperating sweep arms which overcome the tendency of wire convolutions to work their way between the arms and the rollers.
A more specific object is to provide an improved combination of roller table and sweep arms in which the latter have bundle engaging elements that extend below the supporting surfaces of the roller table, and the rollers of this table have series of offset circumferential grooves arranged in arcuate patterns to accommodate said elements.
In accomplishing these and other objects of the invention, we have provided improved details of structure, a preferred form of which is shown in the accompanying drawing, in which:
Figure 1 is a top plan view of a roller table and sweep arms constructed in accordance with our invention;
Figure 2 is a side elevational view of the mechanism shown in Figure 1; and
Figure 3 is a vertical sectional view on a larger scale on line IIIIII of Figure 1.
Figures 1 and 2 show a roller table which comprises a frame 10 and a plurality of idler rollers 12 journaled therein to rotate on horizontal axes. Horizontally extending brackets 13 and 14 are fixed to opposite sides of the frame 10. Sweep arms 15 and 16 are journaled to the respective brackets 13 and 14 to pivot on vertical axes. Each sweep arm includes a vertical shaft portion 17, a pair of angularly related horizontal segments 18 and 19, and a vertical leg 20, all rigidly connected to one another. In the example of a bundle strapping machine, the arms are power driven by mechanism, not shown, but situated body 22 carries a set screw 30 which rides in a keyway 31 in the plunger 24 to prevent rotation of the latter. The rollers over which the sweep arms 15 and 16 travel have two series of offset circumferential grooves 28 and 29 to accommodate the feet as the sweep arms pivot to move a bundle. These respective sets of grooves are arranged in arcuatc patterns centered about the pivotal axes of the two sweep arms.
In operation, the sweep arms 15 and 16 are driven in the usual way to propel the bundle W along the rollers 12. However, the feet 25 extend below the bottom convolutions of the bundle and ride in the respective series of grooves 28 and 29. The springs 27 urge the plungers 24 and the feet downwardly approximately into contact with the bottoms of these grooves. Consequently the feet remain below the bundle supporting surfaces of the rollers and overcome any tendency of the bottom convolutions to become snarled with the sweep arms.
The mechanism constructed as described is suitable to use in modifying existing installations in which the sweep arms are constructed as shown. In such installations the bundle engaging elements 21 can be welded to the legs 20 without otherwise modifying the sweep arms. In new installations the legs 20 can be eliminated altogether, and the bundle engaging elements connected directly to the extremities of the arm segments 19.
While we have shown and described only a single embodiment of our invention, it is apparent that other modifications may arise. Therefore, we do not wish to be limited to the disclosure set forth but only by the scope of the appended claims.
We claim:
1. In combination, a roller table including a frame and a plurality of parallel article supporting rollers journaled therein, and a sweep arm pivoted on an axis at right angles to those of said rollers for pushing articles along said table and including an article engaging element adapted to travel over said rollers and extending below the article supporting surfaces thereof, said rollers having a series of offset circumferential grooves arranged in an arcuate pattern centered about the axis of pivoting of said arm to accommodate the lower portion of said element.
2. In combination, a roller table including a frame and a plurality of parallel article supporting rollers journaled therein, and a sweep arm for pushing articles along said Patented July 31, 1956 table, 'said sweep arm including a shaft pivoted on an axis at right angles to those of said rollers, segments extending from said shaft and adapted to overlie said rollers, and an article engaging element at the extremity of said segments extending below the article supporting surfaces of said rollers, said rollers having a series of offset circumferential grooves arranged in an arcuate pattern centered about the pivotal axis of said shaft to accommodate the lower portion of said element.
3. In combination, a roller table including a frame and a plurality of articles supporting rollers journaled therein on parallel horizontal axes, and a sweep arm for pushing articles along said table, said sweep arm including a shaft pivoted on a vertical axis alongside said frame, angularly related segments extending from said shaft and adapted to overlie said rollers, and an article engaging element at the extremity of said segments having a foot which extends below the article supporting surfaces of said rollers, said rollers having a series of offset circumferential grooves arranged in an arcuate pattern centered about the pivotal axis of said shaft to accommodate said foot.
4. In combination, a roller table including a frame and a plurality of article supporting rollers journaled therein on parallel horizontal axes, and a sweep arm for pushing articles along said table, said sweep arm including a shaft pivoted on a vertical axis alongside said frame, angularly related segments extending from said shaft and adapted to overlie said rollers, an article engaging element 1 at the extremity of said segments having a foot which extends below the article supporting surfaces of said rollers and is adapted to project underneath articles supported thereon, and spring means in said element urging said foot downwardly, said rollers having a series of offset circumferential grooves arranged in an arcuate pattern 4 centered about the pivotal axis of said shaft to accommodate said foot.--
5. In combination, a roller table including a frame and a plurality of parallel article supporting rollers journaled therein, and a pair of sweep arms mounted on opposite sides of said frame for pushing articles along said table, each of said sweep arms including a shaft pivoted on an axis at right angles to those of said rollers, segments extending from said shaft and adapted to overlie said rollers, and an article engaging element at the extremity of said segments extending below the article supporting surfaces of said rollers, said rollers having two series of offset circumferential grooves arranged in arcuate patterns centered about the respective pivotal axes of the shafts of the two sweep arms to accommodate the lower portions of said elements.
6. In combination, a roller table including a frame and a plurality of article supporting rollers journaled therein on parallel horizontal axes, and a pair of sweep arms mounted on opposite sides of said frame for pushing articles along said table, each of said sweep arms including a shaft pivoted on a vertical axis alongside said frame, angularly related segments extending from said shaft and adapted to overlie said rollers, an article engaging element at the extremity of said segments having a foot which extends below the article supporting surfaces of said rollers and is adapted to project underneath articles supported thereon, and spring means in said element urging said foot downwardly, said rollers having two series of offset circumferential grooves arranged in arcuate patterns centered about the respective pivotal axes of the shafts of the two sweep arms to accommodate said feet.
No references cited.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518355A (en) * 1992-08-04 1996-05-21 All Nippon Airways Co., Ltd. Automated container transferring and loading system and a method therefor
US10252867B2 (en) * 2017-07-21 2019-04-09 Chep Technology Pty Limited Pallet positioning station and associated methods
US10370131B2 (en) * 2015-12-17 2019-08-06 Victor Manuel Quinones Apparatus and method for packaging coiled materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5518355A (en) * 1992-08-04 1996-05-21 All Nippon Airways Co., Ltd. Automated container transferring and loading system and a method therefor
US10370131B2 (en) * 2015-12-17 2019-08-06 Victor Manuel Quinones Apparatus and method for packaging coiled materials
US10252867B2 (en) * 2017-07-21 2019-04-09 Chep Technology Pty Limited Pallet positioning station and associated methods
US10710815B2 (en) 2017-07-21 2020-07-14 Chep Technology Pty Limited Pallet positioning station and associated methods
US10710816B2 (en) 2017-07-21 2020-07-14 Chep Technology Pty Limited Pallet positioning station and associated methods

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