US3656609A - Reciprocating conveying apparatus - Google Patents

Reciprocating conveying apparatus Download PDF

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Publication number
US3656609A
US3656609A US30166A US3656609DA US3656609A US 3656609 A US3656609 A US 3656609A US 30166 A US30166 A US 30166A US 3656609D A US3656609D A US 3656609DA US 3656609 A US3656609 A US 3656609A
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Prior art keywords
reciprocating
elements
housing
frame
along
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Expired - Lifetime
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US30166A
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English (en)
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Hideo Okano
Zenjiro Suzuki
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Individual
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Individual
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    • 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

Definitions

  • the conveyor apparatus has a plurality of scraper elements 8 mounted in spaced in-line relationship along each side of conveyor housing element after the aforementioned re-positioning of the I scraper elements.
  • the scraper elements In the operative position, the scraper elements .push the particulate material along the stationary bottom of the conveyor a distance determined by the forward stroke of the driving element.
  • the connecting means At the end of the forward movement of the driving element, and during aninitial portion of its rearward movement, the connecting means cause the scraper elements to be rotated into an inoperative position and to be carried backwardly, by rearward movement of the driving element, to their initial position. In their inoperative position the scraper elements do not contact the particulate material.
  • Repetition of the aforementioned cyclic operation pushes or pulls the particulate material within the conveyor frame housing along the conveyor by successive in-line scraper elements to a collecting station at the end of the conveyor.
  • FIG. I is a plan view of a section of the conveyor apparatus which shows the successive in-line arrangement of the scraper elements in their operative position;
  • FIG. 2 is a side elevational view of the section illustrated in FIG. I wherein the driving element is at its forwardmost position;
  • FIG. 3 is another side elevational view of the apparatus illustrated in FIG. 1 which shows the conveyor guide mechanism and the mounting of a friction reducer to the conveyor apparatus;
  • FIG. 4 is a section taken along lines X-X in FIG. 3;
  • FIG. 5 is another sectional view taken along lines YYv in FIG. 3;
  • FIG. 6 is a side elevation of the apparatus similar to that shown in FIG. 2 wherein the drive element has completed an initial portion of its rearward motion and showing the inoperative position of the scraper elements during the rearward motion of the driving element;
  • FIG. 7 is a plan view illustrating a typical application of the conveyor apparatus of the invention wherein chips are conveyed from a working station to a collecting station;
  • FIG. 8 is an elevation view of the system illustrated in FIG. 7.
  • Conveyor frame 1 is formed with the cross-sectional shape illustrated in FIG. 4; and the cross-sectional shape is not critical and other forms may be used. However, for reasons which will become apparent hereinafter, a simple cross-sectional shape is preferred since the shape of the scraper elements should conform to that of the internal surfaces of the conveyor frame.
  • Bottom surface 11 of the conveyor frame has an elongated aperture 16 (as shown in FIGS. 2 and 4) which guides ing 2 by mounting brackets 9 which are, in turn, fixed to rotatable shafts 7 supported by conveyor housing 2.
  • the number of scraper elements and their respective in-line spacing is determined by the length of the conveyor and the distance each scraper is moved by structure to be described more completely below.
  • a pair of spaced link arms 5 are rigidly fixed to rotatable shaft 33 (as illustrated in FIGS. 1 and 4) and are connected to drive plate 3 by means of pin 6 which passes through elongated opening 4 in the driving plate.
  • aperture 4 is elongated thereby allowing vertical movement of pin 6 and limited horizontal movement therein.
  • the driving element 3 is driven by rod 10, which is connected at one end to the driving element by means of bracket 20, and which is attached at its other end to a hydraulic, pneumatic or other motive source, generally represented by numeral 22.
  • Motive source 22 causes a cyclic, reciprocatingmovement of rod 10 which thereby reciprocates driving element 3 in guide aperture 16.
  • scraper elements 8 are in a vertical position and are carried forwardly by engagement of pin 6 with the side surface of aperture 4.
  • Rod 10 is in its forwardmost position as illustrated in FIG. 2 and all of the scraper elements have completed their forward motion.
  • friction reducing assembly 30 raises strip 13 so that it rides only on the grooved surface 32 of section 12" of guidemember 12.
  • Section 12" is supported by spring-loaded bracket 34 in such a manner that strip 13 does not abut against the upper and lower surfaces of groove 12. This is accomplished by making the force exerted by spring 36 substantially equal to the counterforce produced by the weight of strip 13.
  • the frictional drag of strip 13 is therefore considerably reduced as such sliding friction forces are proportional to the length of contact between the two sliding surfaces.
  • a similar support is provided for the corresponding members on the other side of the conveyor apparatus.
  • FIGS. 7 and 8 A typical installation using the aforedescribed conveyor apparatus is illustrated in FIGS. 7 and 8. Corresponding elements have been given the same numeral designation as in the aforedescribed Figures.
  • Work station 40 may comprise a lathe and the chips resulting from its operation on a workpiece 42 are conveyed by the conveyor apparatus to a collecting station 44 which may be a wheeled hopper.
  • the conveyor apparatus may include a hood 46 mounted at the hopper end to direct particles to hopper 44 from the conveyor.
  • the conveyor may be used to move materials from work station 40 which may be at a lower elevation than hopper 44. It is apparent that the conveyor will operate in a strictly or generally horizontal position as well as one in which the particle receiving end is higher or lower than the particle depositing end.
  • Apparatus for conveying particulate material from a receiving station to a depositing station comprising;
  • each of said elements is in a first position to contact said material during forward movement of said reciprocating means and in a second position out of contact with said material during backward movement of said reciprocating means
  • a housing dividing said frame along its longitudinal axis for distributing said material to said elements
  • said reciprocating means includes elongated apertures
  • said housing includes shafts rotatably mounted within said housing transversely to said longitudinal axis
  • said means for connecting each of said elements to said means for reciprocating includes means slidable within a respective elongated aperture and fixed to a respective one of said shafts whereby said slidable means moves in said elongated aperture only during the change of direction of said reciprocating means to rotate said shaft to cause said movements of said scraper elements.
  • each of said shafts protrude on either side of said housing and a scraper element is mounted to each end of each of said shafts.
  • each of said elements has a shape substantially conforming to the inner surface of said frame to provide a narrow clearance between its surfaces adjacent said frame.
  • Apparatus as in claim 1 further comprising a pair of transversely spaced guide members extending along said longitudinal axis and each guide member having a longitudinally extending groove, and members fixed to said housing and movable within each of said grooves.
  • Apparatus as in claim 4 further comprising means for reducing the friction between each of said longitudinally extending grooves and said members fixed to said housing.
  • said friction reducing means includes a pair of additional guide members each having an additional groove and each additional groove is positioned substantially in line with a respective groove of said guide members, and means for mounting each of said additional guide members so that said members fixed to said housing slide only along asurfaceof said additional roove, and the length of each of said additional grooves is su stantially less than the length of each of said grooves.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
US30166A 1969-04-24 1970-04-20 Reciprocating conveying apparatus Expired - Lifetime US3656609A (en)

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JP3139469 1969-04-24

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026408A (en) * 1976-02-09 1977-05-31 Kalamazoo Conveyor Company Chip conveyor
US4130195A (en) * 1977-04-22 1978-12-19 Kalamazoo Conveyor Company Arcuate push-bar conveyor
EP0718578A3 (en) * 1992-12-23 1997-06-11 Smidth & Co As F L Process and cooler for cooling granular product
EP1021692B1 (en) * 1997-04-22 2001-08-01 F.L.SMIDTH & CO. A/S Cooler for particulate material
US10167987B2 (en) 2015-06-12 2019-01-01 Roto-Launch Inc. Pipeline pig launch apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667264A (en) * 1952-11-19 1954-01-26 Charles G Holloway Cow barn gutter cleaner
US2794561A (en) * 1954-02-25 1957-06-04 Koppers Co Inc Slot bunker
FR1196198A (fr) * 1958-05-20 1959-11-23 Lythall K G Maschf Dispositif de transport et d'évacuation du fumier
US3175677A (en) * 1961-10-25 1965-03-30 Renault Scrap conveyors for metal working workshops

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2667264A (en) * 1952-11-19 1954-01-26 Charles G Holloway Cow barn gutter cleaner
US2794561A (en) * 1954-02-25 1957-06-04 Koppers Co Inc Slot bunker
FR1196198A (fr) * 1958-05-20 1959-11-23 Lythall K G Maschf Dispositif de transport et d'évacuation du fumier
US3175677A (en) * 1961-10-25 1965-03-30 Renault Scrap conveyors for metal working workshops

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026408A (en) * 1976-02-09 1977-05-31 Kalamazoo Conveyor Company Chip conveyor
US4130195A (en) * 1977-04-22 1978-12-19 Kalamazoo Conveyor Company Arcuate push-bar conveyor
EP0718578A3 (en) * 1992-12-23 1997-06-11 Smidth & Co As F L Process and cooler for cooling granular product
EP1021692B1 (en) * 1997-04-22 2001-08-01 F.L.SMIDTH & CO. A/S Cooler for particulate material
US10167987B2 (en) 2015-06-12 2019-01-01 Roto-Launch Inc. Pipeline pig launch apparatus

Also Published As

Publication number Publication date
SE374904B (cs) 1975-03-24

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