US3598252A - Apparatus for assembling veneer into plywood sheets - Google Patents

Apparatus for assembling veneer into plywood sheets Download PDF

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Publication number
US3598252A
US3598252A US813812A US3598252DA US3598252A US 3598252 A US3598252 A US 3598252A US 813812 A US813812 A US 813812A US 3598252D A US3598252D A US 3598252DA US 3598252 A US3598252 A US 3598252A
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United States
Prior art keywords
veneer
conveyor
sheet
plywood
groups
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Expired - Lifetime
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US813812A
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English (en)
Inventor
Ronald J Billett
Veikko K Viitanen
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FMC Corp
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FMC Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • 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
    • Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/102—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns including support for group
    • Y10S414/103—Vertically shiftable
    • Y10S414/105—Shifted by article responsive means

Definitions

  • Two sources of veneer, one above the other, are adjacent an assembly station.
  • the assembly station has a lift table to receive the veneer for assembly.
  • An interrupted slat conveyor takes, alternately, two sheets of veneer from thetop source of veneer, and one sheet from the bottom ,J source of veneer.
  • the veneer on the conveyor engages a stop above the lift table to drop between the slats of the conveyor 1 onto the lift table as the slats of the conveyor move out from under the veneer.
  • core pieces are taken from gluing rolls and laid on the deposited veneer, the end core sheet being supported by a retractable support member.
  • SHEET 1 0F 5 I E'IE1'
  • SHEET 3 BF 5 F'IE E PATENTED AUG] 01971
  • the present invention relates to apparatus for assembling veneer into plywood sheets.
  • plywood is assembled into panels manually from veneer and glued core strips, the latter of which are sandwiched between the veneer to join the veneer into plywood sheet.
  • four operators are used to assemble each sheet: two operators to place veneer at an assembly station, one operator to pass core strips through a gluing machine, and one operator to take the glued core strips from the gluing machine and place them on the veneer.
  • the first, third and fifth ply will be veneer;-the second and fourth ply will be glued core strips.
  • different-quality veneer is used for different layers.
  • the veneer handlers will bring the face veneer of one sheet and the back veneer of the next sheet together in stacked relation to the assembly station, since no glued core strips are required therebetween.
  • the middle veneer is brought alone to the assembly station.
  • the veneer is supplied from two sources adjacent the assembly stationv These sources may, for example, be two roller conveyors, one above the other.
  • sources may, for example, be two roller conveyors, one above the other.
  • an endless conveyor encircles a conventional lift table in the assembly station, the upper run of the conveyor passing above the lift table and the lower run passing beneath the lift table.
  • the conveyor has groups of slats to support veneer, the groups being spaced apart to'permit veneer to drop between the groups.
  • intermediate core strips are fed through a glue machine to the operator who lays them on the back veneer, as in the conventional manual assembly.
  • a movable shelf is provided to support the end core strip until it is covered by a veneer sheet.
  • a single piece of middle veneer is then released from the bottom roller conveyor to the veneer-supporting portion of the interrupted slat conveyor.
  • the conveyor carries the middle veneer into the assembly station and over the lift table therein.
  • a second layer of glued core pieces is laid on the middle veneer.
  • the two veneer layers from the upper roller conveyor are released as a unit to the interrupted slat conveyor.
  • the two layers are discharged from the conveyor (the face veneer for the plywood sheet below back veneer for the next plywood sheet).
  • a plywood sheet is completed and the back veneer for the next plywood sheet is ready in the'assembly station to receive the glued core strips.
  • FIG. 1 is a view in perspective of a plywood assembly station incorporating the apparatus of the present invention
  • FIG. 2 is a side view showing the interrupted slat conveyor in the assembly station
  • FIG. 3 is a view of a plywood sheet as assembled in the assembly station, with layers broken away for clarity;
  • FIG. 4 is a view in cross section of a slat of the slat conveyor
  • FIG. 5 is a view taken on the line 5-5 of FIG. 4;
  • FIG. 6 is a side view of the stops which hold veneer on the supply conveyors, and the operating mechanism therefor;
  • FIGS. 7 to 12 show the sequential operation of the slat conveyor as it takes veneer from the supply conveyors and deposits it on the stack of plywood sheets for assembly.
  • FIGS. I and 2 DESCRIPTION OF THE PREFERRED EMBODIMENT
  • FIGS. I and 2 apparatus for assembling plywood sheets PS shown in FIG. 3 from veneer and intermediate core strips.
  • Two stacked conveyors constitute two sources SI and S2 for the veneer: the top conveyor S1 supplying the top, or face veneer I5 and the bottom, or back, veneer, l6; and the bottom conveyor S2 supplying the middle sheet of veneer 17.
  • the intermediate layers between the face and middle veneer, and between the middle and back veneer is made up of core strips I8 laid across the veneer as shown in FIG. 3'.
  • the face and back veneer (with the face sheet, which completes the previous sheet of plywood, on the bottom) .are supplied together to the assembly station AS.
  • Core strips I8 are fed through the rolls I9, 20 ofa conventional glue-applying machine 21, and the glued strips which emerge from the rolls are laid on the back sheet by the operator.
  • a sheet of middle veneer I7 is laid on the core strips and a second layer of glued core strips is laid on the sheet of middle veneer.
  • another back and face sheet are together supplied to the assembly station with the face sheet down to lay on the second layer of glued core strips.
  • the apparatus of the present invention facilitates handling of the veneer in the assembly station and permits one man, in addition to the man feeding core strips through the gluing machine, to assembly the plywood sheets.
  • a platform 23 is provided for theoperator at the assembly station.
  • a plurality of rotatable rollers 26 are mounted on the table, two of which 260 and 26b are power driven, through chains 27, 28, by motor 29.
  • Discharge conveyor sections 30, 3I, having rollers 32, are mounted on the frame in a fixed position with the rollers 32 thereof level with the rollers 26 of the lift table when the lift table is in its lowermost position.
  • the conveyor sections 30, 31 are spaced apart to define a gap therebetween.
  • motor 29 is energized to advance the stack off the lift table 25 and onto the discharge conveyor sections 30, 3! for removal from the assembly station.
  • the frame 24 has an upper shaft 35 journaled therein in front of the table.
  • Two stub shafts 36a and 36b are journaled in the frame behind the table, one on'each side of the frame.
  • the stub shafts do not extend inwardly as far as the lift table, and thus permit unobstructed removal of a stack 33 of plywood from the assembly station.
  • Each shaft 35, 37, 38 has two spaced apart sprockets 3,9. The two sprockets are fixed to each shaft on eitherside of the table.
  • Stub shaft 361 has a sprocket 39 secured thereon on one side of the table aligned with the other sprockets on that side of the table.
  • Stub shaft 36b has a sprocket 39 secured thereon aligned with the sprockets on the opposite side of the table.
  • An endless chain 40 is mounted on the four sprockets 39 on one side of the table, and a similar chain 41 is mounted on the four sprockets 39 on the opposite side of the table.
  • Groups 50 of cross slats l span the chains 40, 41.
  • Each slat comprises a crossbar 52 terminating in short legs 53, 54 perpendicular to the crossbar at each end.
  • the legs 53 of each slat are connected to chain 40 and the legs 54 are connected to chain 41 so that the crossbars 52 are are outside the closed path of the endless chains.
  • Some of the slats have upstanding,
  • the chains and spaced apart groups 50 of cross slats define an interrupted conveyor 56 to transport veneer into the assembly station.
  • the leading slat has two upstanding stops 57 for engagement by the leading edge of the veneer to stop the veneer on the slats.
  • the leading slat also has a ledge 58 thereon (see FIG. 7) to prevent the leading edge of a veneer sheet received thereon from lodging under the leading slat.
  • the trailing slat has a ledge 59 (FIG. 7) to ease the leading edge of the veneer off the group of slats when the veneer is dislodged therefrom.
  • each group 50 of slats there are two groups 50 of slats, each group extending along the endless chains 40, 41 a distance slightly less than the length of a piece of veneer.
  • the two groups 50 are spaced apart a distance slightly greater than the length of a piece of veneer.
  • the slats of the conveyor are interrupted for a span, or gap 60, sufficiently great to allow a piece of veneer to drop through the conveyor 56 onto the stack of plywood 33 on the lift table.
  • the interrupted endless conveyor 56 circulates continuously in the assembly station (except when stopped by release of footswitch 90 as hereinafter described) and encircles the lift table therein, the upper run of the conveyor passing over the table and the lower run passing under the table.
  • a pneumatic actuator 63 mounted on a bracket 62 connected to the frame adjacent the upper rear stub shafts 36a, 36b of the conveyor is a pneumatic actuator 63.
  • the actuator 63 can be selectively extended and retracted by solenoid operated valve 63V, which is operated by switch 638.
  • At the outer end of the actuator rod 64 there is a fixed stop 65 and a hinged stop 66.
  • the actuator rod 71 can be selectively extended and retracted by solenoid valve 70V which is operated by switch 708.
  • the rod 71 is pivotally connected to one of two levers 72 pivotally connected to the frame. Levers 72, at their upper ends have a support member 73 with extending fingers 74 (see FIG. 9) which defines a shelf.
  • the interrupted conveyor 56 is driven by a drive unit 75 which is connected to and rotates shaft 38.
  • the drive unit 75 which includes an electric motor, 75a, is controlled by a foot switch 90.
  • the conveyor S1 receives a pair of veneer sheets, one pair at a time, and the conveyor S2 receives a single veneer sheet, one sheet at a time, from any suitable apparatus, such as that shown in the eopending application of Billett, Chamberlin, and McGee entitled APPARATUS FOR FEEDING VENEER TO PLYWOOD ASSEMBLY STATION (SJ 4795), Ser. No. 81 1,929, filed Apr. 1, 1969, assigned to the same assignee as the present invention.
  • the pair of veneer sheets received on the conveyor S1 comprises a face sheet on the bottom and a back sheet 16 on top.
  • the single sheet of veneer received on conveyor S2 comprises a sheet of middle veneer 17.
  • the rollers 80 of conveyors S1 and S2 are continuously driven by belts 81 to urge the veneer forwardly in the direction indicated by arrow A.
  • the pair of veneer on conveyor SI will be dispensed therefrom when gate 82 (FIG. 6) is flipped down by actuator 83.
  • Actuator 83 is operated by solenoid valve 83V which is controlled by switch 838.
  • the single sheet of veneer on conveyor S2 will be dispensed therefrom when gate 85 is flipped down by actuator 86.
  • Actuator 86 is operated by solenoid valve 86V which is controlled by switch 86S.
  • a pair of veneer sheets is released from conveyor S1 as the leading slat 51 of a group 50 of slats reaches the downstream end of the conveyors S1, S2.
  • the pair of veneer sheets which leave the conveyor S1 at a rate exceeding the rate of movement of conveyor 56, engage stops 57 connected to the leading slat.
  • the veneer engages the guide pins 55 as it moves onto the conveyor 56 for accurate positioning thereon.
  • a partially assembled plywood sheet lacking only the face sheet, is resting on the stack of completed plywood sheets on the lift table, with glued core strips 18 exposed.
  • the pair of veneer sheets are carried over the stack of plywood sheets, previously assembled, which have accumulated on the lift table.
  • the partially assembled plywood sheet rests on top of the stack.
  • the rod 64 of actuator 63 When the pair of veneer sheets reach the end of the upper run of the conveyor 56, the rod 64 of actuator 63 is in the extended position and the leading edges of the veneer pass under the hinged stop 66 to strike the fixed stop 65, as shown in FIG. 9.
  • the hinged stop prevents the sheets from springing back from the fixed stop.
  • the conveyor 56 continues to move, as shown in FIG. 10, stripping the veneer off the group 50 of slats 51. As the slats move out from under the trailing edge of the veneer sheets, the rear ends of the sheets settle onto the glued cores.
  • the previous plywood sheet will be completely assembled, ready for the press, and the back sheet 16 of the next plywood sheet will be on top of the stack of completed sheets.
  • a photoelectric cell PC mounted in frame 24 is provided to start the elevator motor (not shown) and lower the lift table 25 when the top veneer interrupts the light striking the cell.
  • the table is lowered only until the cell again is struck by the light so that the top of the stack 33 is maintained adjacent the upper run of the conveyor.
  • the upper limit of the elevator is defined by its position when the finger 91 thereon operates limit switch ILS.
  • the lower limit of the elevator is defined by its position when the finger operates limit switch 2LS.
  • the slat conveyor can be jogged by the operator at the assembly station.
  • the cores are fed through the rolls 19 and 20 of the gluing machine from left to right, as viewed in FIG. 1, so that the core strips nearest sources S1, S2 are supplied first.
  • the operator then lays the glued core strips from left to right, jogging the conveyor 56 which is carrying the next sheet of veneer, as he progresses with the core laying.
  • the next sheet of veneer will be close to stop 65 so that, in very little time, the next sheet of veneer can be laid on the glued core strips.
  • Plywood-assembling apparatus at an assembly station comprising in combination a lift table having a vertically movable surface to receive veneer and support the veneer for assembly into plywood sheets, means to sense the. vertical position of the top sheet of veneer on said surface, means to adjust the vertical position of said table in response to said sensing means to maintain the top sheet of veneer at substantially a constant height, a stop mounted in the station, an interrupted conveyor movable along a path over said lift table surface to bring veneer against said stop, said conveyor having endless flexible side members below the top sheet of veneer on the lift table and having slats connected between said side members to extend across the conveyor, said slats having portions elevated above said side members to clear the veneer on the table and positioned along said side members in groups to define gaps between the groups at least as long as the'veneer, the veneer on said elevated slats dropping through said gaps on engagement with said stop, two stacked conveyors to feed veneer to said interrupted conveyor, and a discharge conveyor extending between said flexible side members to receive plywood sheets from the vertically
  • An interrupted conveyor for transporting veneer to and depositing veneer on a table in a plywood sheet assembly station comprising a pair of flexible side members having a run group the surface of the top sheet of veneer on said table, a plurality of crossmembers connected between said side members in groups to define gaps between said groups, said crossmembers having center portions elevated above the top veneer on said table for clearance whereby a sheet of veneer can be deposited from said crossmembers onto the veneer on said table and the top sheet of veneer will be accessible to an operator without interference from a side member when said gap is in registration with the veneer on the table.
  • An interrupted conveyor for transporting veneer to and depositing veneer on a table having a vertically adjustable upper surface and having means to maintain the height of veneer on said surface substantially constant, said conveyor comprising a spaced pair of endless side chainsfmeans to mount said endless chains to position the upper run thereof below the top of the veneer on the table, a plurality of crossbars connected between said side chains in groups to define gaps between said groups, said crossbars having portions elevated with respect to the chains for clearance with the veneer on the table whereby a sheet of veneer can be deposited from said crossbars through said gaps onto the veneer on said table and the top sheet of veneer will be accessible to an operator without interference from the side chains when a gap in the groups of crossbars is over the veneer on the table.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
US813812A 1969-04-01 1969-04-01 Apparatus for assembling veneer into plywood sheets Expired - Lifetime US3598252A (en)

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US81381269A 1969-04-01 1969-04-01

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US (1) US3598252A (enrdf_load_stackoverflow)
JP (1) JPS509843B1 (enrdf_load_stackoverflow)
CA (1) CA918054A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768807A (en) * 1970-08-10 1973-10-30 Stanztechnik Gmbh Roeder & Spe Method and apparatus for handling flat, flexible workpieces
US4055257A (en) * 1976-05-04 1977-10-25 Molins Machine Company, Inc. Stacking apparatus
US4159108A (en) * 1977-12-08 1979-06-26 Peter Haft Garment stacker
US5665197A (en) * 1995-02-27 1997-09-09 Kitagawa Seiki Kabushiki Kaisha Plywood lay-up system
US5776292A (en) * 1995-02-27 1998-07-07 Kitagawa Seiki Kabushiki Kaisha Plywood lay-up system
US6074162A (en) * 1997-07-02 2000-06-13 Raute Wood Oy Method and apparatus for laying a stack of wood veneer sheets
AU730188B2 (en) * 1997-07-02 2001-03-01 Raute Wood Oy Method and apparatus for laying a stack of wood veneer sheets
US20100190626A1 (en) * 2007-08-23 2010-07-29 Mitsubishi Heavy Industries, Ltd. Counter ejector and carton former
US20110268550A1 (en) * 2010-04-29 2011-11-03 Hidenori Kokubo Cardboard sheet batch division device, cardboard sheet counter ejector, and method for dividing cardboard sheet
WO2016040227A1 (en) * 2014-09-08 2016-03-17 Georgia-Pacific Wood Products Llc Automated core veneer feeder and layer for manufacturing plywood
CN109318299A (zh) * 2018-11-22 2019-02-12 东阳市旭东工艺品有限公司 一种红木家具加工生产线

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50113825A (enrdf_load_stackoverflow) * 1974-02-19 1975-09-06
JPS5439633U (enrdf_load_stackoverflow) * 1977-08-23 1979-03-15
JPS57210210A (en) * 1981-06-18 1982-12-23 Matsushita Electric Ind Co Ltd Combustion apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL270098A (enrdf_load_stackoverflow) *
US3028979A (en) * 1956-03-27 1962-04-10 American Mfg Company Inc Sheet pack stacking apparatus
US3346128A (en) * 1965-05-18 1967-10-10 Owens Corning Fiberglass Corp Apparatus for materials handling
US3367823A (en) * 1963-08-05 1968-02-06 Simpson Timber Co Automatic plywood layup apparatus and method
GB1129944A (en) * 1966-05-12 1968-10-09 Drohmann Gmbh C Apparatus for stacking objects on pallets
US3447695A (en) * 1966-11-21 1969-06-03 P & F Ind Inc Stacker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL270098A (enrdf_load_stackoverflow) *
US3028979A (en) * 1956-03-27 1962-04-10 American Mfg Company Inc Sheet pack stacking apparatus
US3367823A (en) * 1963-08-05 1968-02-06 Simpson Timber Co Automatic plywood layup apparatus and method
US3346128A (en) * 1965-05-18 1967-10-10 Owens Corning Fiberglass Corp Apparatus for materials handling
GB1129944A (en) * 1966-05-12 1968-10-09 Drohmann Gmbh C Apparatus for stacking objects on pallets
US3447695A (en) * 1966-11-21 1969-06-03 P & F Ind Inc Stacker

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768807A (en) * 1970-08-10 1973-10-30 Stanztechnik Gmbh Roeder & Spe Method and apparatus for handling flat, flexible workpieces
US4055257A (en) * 1976-05-04 1977-10-25 Molins Machine Company, Inc. Stacking apparatus
US4159108A (en) * 1977-12-08 1979-06-26 Peter Haft Garment stacker
US5665197A (en) * 1995-02-27 1997-09-09 Kitagawa Seiki Kabushiki Kaisha Plywood lay-up system
US5776292A (en) * 1995-02-27 1998-07-07 Kitagawa Seiki Kabushiki Kaisha Plywood lay-up system
AU730188B2 (en) * 1997-07-02 2001-03-01 Raute Wood Oy Method and apparatus for laying a stack of wood veneer sheets
US6074162A (en) * 1997-07-02 2000-06-13 Raute Wood Oy Method and apparatus for laying a stack of wood veneer sheets
US20100190626A1 (en) * 2007-08-23 2010-07-29 Mitsubishi Heavy Industries, Ltd. Counter ejector and carton former
US8876681B2 (en) * 2007-08-23 2014-11-04 Mitsubishi Heavy Industries Printing & Packaging Machinery, Ltd. Counter ejector and carton former
US20110268550A1 (en) * 2010-04-29 2011-11-03 Hidenori Kokubo Cardboard sheet batch division device, cardboard sheet counter ejector, and method for dividing cardboard sheet
US9033646B2 (en) * 2010-04-29 2015-05-19 Kabushiki Kaisha Isowa Cardboard sheet batch division device, cardboard sheet counter ejector, and method for dividing cardboard sheet
WO2016040227A1 (en) * 2014-09-08 2016-03-17 Georgia-Pacific Wood Products Llc Automated core veneer feeder and layer for manufacturing plywood
CN109318299A (zh) * 2018-11-22 2019-02-12 东阳市旭东工艺品有限公司 一种红木家具加工生产线

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CA918054A (en) 1973-01-02
JPS509843B1 (enrdf_load_stackoverflow) 1975-04-16

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