US3905595A - Sheet stacker - Google Patents

Sheet stacker Download PDF

Info

Publication number
US3905595A
US3905595A US388523A US38852373A US3905595A US 3905595 A US3905595 A US 3905595A US 388523 A US388523 A US 388523A US 38852373 A US38852373 A US 38852373A US 3905595 A US3905595 A US 3905595A
Authority
US
United States
Prior art keywords
lift table
chain
frame
sprocket
torsion bar
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
US388523A
Other languages
English (en)
Inventor
John Q Adams
David Adams
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.)
I D Inc
Original Assignee
I D Inc
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 I D Inc filed Critical I D Inc
Priority to US388523A priority Critical patent/US3905595A/en
Priority to AU71731/74A priority patent/AU481725B2/en
Priority to BE147391A priority patent/BE818606A/xx
Priority to DE2438438A priority patent/DE2438438A1/de
Priority to FR7427679A priority patent/FR2240879B1/fr
Priority to NL7410716A priority patent/NL7410716A/xx
Priority to DK426074AA priority patent/DK139469B/da
Priority to NO742894A priority patent/NO143526C/no
Priority to GB1647476A priority patent/GB1462129A/en
Priority to GB3545974A priority patent/GB1462128A/en
Priority to IT52555/74A priority patent/IT1018924B/it
Priority to SE7410309A priority patent/SE387307B/xx
Priority to CA207,041A priority patent/CA1006191A/en
Priority to JP49093182A priority patent/JPS5048665A/ja
Priority to CH1115674A priority patent/CH577930A5/xx
Application granted granted Critical
Publication of US3905595A publication Critical patent/US3905595A/en
Priority to ES449470A priority patent/ES449470A1/es
Priority to CA257,928A priority patent/CA1013380A/en
Priority to DK394277A priority patent/DK142945C/da
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
    • B65H31/08—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another
    • B65H31/10—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another and applied at the top of the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3054—Arrangements for removing completed piles by moving the surface supporting the lowermost article of the pile, e.g. by using belts or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/12—Forming counted batches in delivery pile or stream of articles by creating gaps in the stream
    • 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
    • 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

  • SHEET STACKER BACKGROUND OF TI-IE INVENTION This invention relates to sheet stackers such as used in combination with corrugator machines or the like to stack the output of ⁇ the machine in neat stacks and move the stacks away from the machine.
  • a further object of the invention is to provide a sheet stacker which is compact in structure and requires a minimum of space.
  • a lift table is movably mounted for upward and downward movement on a frame to receive and stack sheets from an adjacent conveyor belt or the like.
  • the lift table is raised by hydraulic cylinders which are linked to the table.
  • the hydraulic cylinders are mounted within the upper frame members to conserve spaceA
  • the cylinders are bled to lower the lift table as the stack of sheets grows. After the stack reaches a predetermined height, the input of sheets is blocked, and the stack is moved off the lift table, which is then moved upward at a relatively high speed until it is in position to receive a new stack.
  • At least one and preferably two torsion bars are journalled to opposite sides of the lift table parallel to the table top.
  • sprockets are each rigidly attached to corresponding ends of the torsion bars.
  • At least one and preferably two pairs of leveling chains are attached at both ends to the frame and operatively engage corresponding sprockets to rotate the torsion bars and maintain the lift table level as it is raised and lowered.
  • FIG. l is a diagrammatic perspective view of one illustrative embodiment of the invention.
  • FIG. 2 is a longitudinal sectional view of the embodiment diagrammatically represented in FIG. 1;
  • FIG. 3 is a detail cross-sectional view taken on the line 3-3 of FIG. 2.
  • one embodiment of this invention is mounted within a frame l which includes four upright posts 12 which are positioned in a rectangular pattern and are joined together on their upper ends by four cross beams 14 which each extend between the upper ends of two corresponding upright posts 12.
  • the lower corners of the upright posts 12 are joined together by two channel members 16 which extend parallel toeach other between two adjacent corners of upright posts 12.
  • the space between the bottom ends of the upright posts 12 transverse to the channel members 16 is left open to allow a lift table which is described hereinafter to be lowered to the bottom of the frame 10 for unloading the cardboard sheets stacked thereon.
  • a lift table 18 is movably mounted within the frame l0 for upward and downward movement therewithin.
  • the lift table 18 has a rectangular base formed by four lower channel members 20 which are welded together at their corners.
  • Two parallel side channel members 22 are joined to opposite sides of the lower channel members 20.
  • a plurality of rollers 24 is journalled between the two channel members 22 to provide a rollable upper surface for the lift table 18.
  • Sprockets 26 are rigidly coupled to one end of every other roller 24 for driving alternate rollers to move a stack of cardboard sheets off the top of the lift table 18 as will be described hereinafter.
  • the lift table 18 fits within the interior of the frame 10 and is supported by a pair of lift chains 28 whose bottom ends 30 are attached to the diagonallyopposite corners of the side channels 22 (see FIG.
  • the chains 28 extend upwardly from the corners 30 and are directed in a horizontal direction at the top of the frame 1Q by idler sprockets 32.
  • the upper end of each chain 2,8 is fastened at a convenient point to the frame 10 and extends around another idler sprocket 34 which is attached to the piston shaft 36 of a hydraulic cylinder 38.
  • the hydraulic cylinders 38 are mountedwithin frame 10 as shown in FIG. 3.
  • TheA hydraulic cylinders 38 are provided with hydraulic fluid under pressure through hydraulic conduits 40 which receive hydraulic fluid from a three-way hydraulic valve 42.
  • the hydraulic valve 42 is a solenoid valve which is electrically operated by suitable electrical control signals froma control Circuit 44.
  • hydraulic fluid under pressure is applied to the hydraulic conduits 40 to cause the hydraulic pistons 36 to move toward the corresponding lhydraulic cylinders 38. This draws the chains 28 upward and thereby raises the lift table 18.
  • the hydraulic fluid within the cylinders 38 and hydraulic conduits 40 is blocked off to hold the lift table 18 in the same position'.
  • hydraulic fluid is bled out of the conduits 40 and cylinders 38 via a hydraulic exhaust conduit 4S to a hydraulic reservoir. This lowers the chains 28 and thereby lowers the lift table 18.
  • the hydraulic fluid for the hydraulic valve 42 is applied via a hydraulic conduit 46 which receives hydraulic fluid from one or both of two hydraulic pumps 48 and 50 which are driven by an electric motor 5l.
  • the pump 48 is a relatively low capacity pump used for moving the lift table 18 at a relatively low speed and the pump 50 is a relatively high capacity pump which is used to raise the lift table 18 at a relatively high rate of speed for reasons which will be discussed hereinafter.
  • the hydraulic pumps 48 and 50 are coupled to the hydraulic conduit 46 through two solenoid valves S2 and 54 which are controlled by signals from the control circuit 44.
  • the hydraulic pumps 48 and 50 are coupled to thehydraulic reservoir through hydraulic conduits 56 and 58.l
  • the hydraulic pumps 48 and 50 are also coupled via a solenoid valve 60 to a hydraulic motor 62 which is mounted on the frame as shown in FIG. 2.
  • Hydraulic motor 62 drives a chain 64 which engages the sprockets 26 on rollers 24 as shown in FIG. 1. Every other sprocket 26 is an idler.
  • the chain 64 is Snaked through the sprockets 26 and is doubled back over an idler sprocket 66 which is rotatably attached to the bottom of the channel member so that it moves along with the lift table 18. From idler sprocket 66, the chain 64 passes around another idler sprocket 68, which is rotatably attached to the frame 10, and then returns to the drive sprocket on motor 62.
  • the motor 62 When the motor 62 is energized, it drives the chain 64 and causes every other roller on the lift table 18 to be rotated in the same direction to move a stack of sheets off the lift table 18 as will be described hereinafter.
  • such automatic leveling means includes at least one and preferably two torsion bars 70 which are journalled through the channel members 20 on opposite sides of the lift table 18 and project laterally therefrom.
  • Two sprockets 72 and 74 are rigidly'attached to both ends of both torsion bars 70 as shown in FIG. l.
  • the inner sprockets 72 are operatively engaged with an inner leveling chain 76 which is attached at both ends to the frame 10 and extends between the two sprockets 72, passing around the underside of the rear sprocket 72 and passing over the top side of the forward sprocket 72.
  • the upper end of inner leveling chains 76 are attached to frame 10 at attachment points 78 which are located above the rear sprockets 72.
  • the lower ends of the inner leveling chain 76 are attached to the frame 10 at attachment points 80 which are located below the corresponding forward sprockets 72.
  • a pair of outer leveling chains 82 is attached at both ends to the frame 10 on opposite sides thereof and extend between the two outer leveling sprockets 74, the chain 82 passing under the front sprocket 74 and passing over the rear sprocket 74.
  • the upper ends of the chains 82 are attached to the frame 10 at attachment points 84 which are positioned above the corresponding front outer sprockets 74.
  • the bottom of the chains 82 are attached to the frame 10 at attachment points 86 which are located under the outer rear sprocket 74.
  • Adjustment means may be attached to chains 76 at points 78 and to chains 82 at points 84 to permit the lift table 18 to be manually leveled.
  • torsion bars 70, sprockets 72 and 74, and leveling chains 76 and 82 act to keep all four corners of the lift table 18 at the same level throughout its range of upward and downward travel. If any one of the corners should drop or rise with respect to the other corners, this drop or rise will be communicated through the torsion bars 70 to the other side of the lift table and through the chains 76 and 82 to both of the other corners of the lift table 18 so that an upward or downward movement of any one corner will cause an equal upward or downward movement on all of the three remaining corners so that the four corners of the lift table 18 will always move in synchronism and thereby maintain the table in a level condition even if an unbalanced load is applied thereto.
  • a conveyor belt 88 carrying sheets 90 of paperboard, cardboard, corrugated board or the like enters the upper portion of the cubical frame 10 and deposits the sheets in a stack 92 on the top of the lift table 18.
  • a sheet stop member 94 serves to limit the forward movement of the sheets 90 so that they form an even stack.
  • a photocell and light source 96 and mirror 98 are attached to opposite ends of the stop member 94 and serve to generate a signal that causes the lift table 18l to be lowered as will be described hereinafter.
  • the stop member 94 and the photocell 96 and mirror 98 are all attached to a rack and pinion gear 100 by means of which the height of the photocell 96 and its reflecting mirror 98 may be raised and lowered for alignment purposes.
  • the distance between the stop member 94 and the end of conveyor belt 88 may also be made adjustable if desired to accommodate different size sheets in the stacker.
  • a movable gate member 104 is mounted in front of the idler rollers 102. Gate member 104 is normally spring biased upwardly by a spring 106 but can be pulled downward to block the entry of the sheets 90 into the sheet stacker by means of a solenoid 108. The gate 104 is lowered at the end of an operating cycle to block the entry of sheets 90 into the sheet stacker at a time when the stack 92 is being removed therefrom.
  • FIG. 2 an operating cycle 0f the abovedescribed sheet stacker will be described starting with the condition illustrated in FIG. 2 in which the sheets 90 are being deposited on the stack 92.
  • the sheets 90 pile up on the stack 92, they block the beam of light between photocell and light source 96 and mirror 98, which develops an electrical signal that is applied to the control circuit 44.
  • the control circuit 44 then actuates the valve 42 to bleed some of the hydraulic fluid out of the cylinders 38, thus lowering the lift table 18 andthe stack 92 until the beam of light from the photocell 96 to the mirror 98 is unbroken again.
  • This lowering of the stack 92 is repeated periodically as the sheets pile up with the effect that the stack 92 grows taller and the lift table 18 approaches the bottom of the frame l0.
  • the lift table 18 engages a microswtch which is electrically coupled to the control circuit 44.
  • the control circuit 44 then sends an electrical signal to the input gate solenoid 108 to draw the gate 104 downward against the upward pressure of spring 106 to halt the inward movement of sheets 90.
  • the circuit then waits for a predetermined delay time to allow the last sheet 90 to reach the stop member 94 and complete the stack 92. Thereafter, the control circuit 44 opens the solenoid valves 52 and 60 to couple the low capacity hydraulic pump 48 to the hydraulic motor 62 and initiate relatively slow drive on the rollers 24 under the stack 92 via the chain 64 and the sprockets 26.
  • the stack 92 then begins to move sideways out of the sheet Stacker and onto a pallet or conveyor which is placed at the side of the frame l0 to receive the stack 92. After a short time delay to allow the stack 92 to begin moving relatively slowly out of the side of the sheet stacker. the control circuit 44 opens the solenoid valve 54 to increase the amount of hydraulic fluid driven through the motor'62 to raise the rotary speed of the rollers 24 in order to remove the ystack 92 from the lift table 18 in a' relatively short period of time.
  • This two-speed feature is an important feature of the invention because the stack'92 must be removed from the lift table 18 in as short a time-period s possiate to avoid having to' shut down the Conveyor 88 at the'i'nput of the machine or the equipment vsuchafs'a corrugat'or machine which is coupled to 'the Tro'iveyo'l ⁇ belt: I88. Since the stack V92 is relatively large,” it must beinitially moved relatively slowly, but after it is starteda Iit iis highly desirable to move it at a faster speed to reduce the unloading time for the machine.
  • the solenoid valve 60 is closed to terminate the drive on the rollers 24 and the solenoid valve 42 is opened to begin moving the lift table 18 upwardly.
  • the solenoid valves 52 and 54 are both open and therefore a relatively high volume of hydraulic fluid pours into the cylinders 38 to raise the lift table 18 at a relatively high rate of speed.
  • the lift table 18 approaches the end of conveyor belt 88, it closes a microswitch 112 which is wired to the control circuit 44.
  • microswitch 112 causes the control circuit 44 to switch the solenoid valve 54 off and block the high capacity hydraulic pump 50, thereby substantially reducing the speed at which the lift table 18 is raised.
  • the lift table 18 then continues to move upward at a slow rate until it strikes the bottom of the stop member 94, which mechanically blocks the lift table 18 from rising any further.
  • the solenoid valve 52 is subsequently closed to remove the hydraulic drive and the solenoid valve 42 is ope rated in the state to hold the hydraulic fluid in the conduits 40 and cylinders 38 so as to hold the lift table 18 in position.
  • the solenoid 108 is then released and the gate member 104 is lifted to allow the sheets 90 to again pile up on the lift table 18.
  • a sheet stacker having a frame, a table and means for moving the table up and down with respect to the frame, the improvement for leveling the table regardless of unbalanced loads thereon and Comprising a first torsion bar at one side of the table, a second torsion bar at the opposite side of the table, pairs of sprockets fixed at both ends of both torsion bars, pairs of leveling chains at both ends of said torsion bars, anchor means anchoring each such chain to the frame above the table, said chain extending downwardly from its said anchor means and around the bottom of a sprocket on an end of a torsion bar and thence laterally across the table and around the top of a sprocket on an end of a torsion bar at the other side of the table and thence downwardly and means anchoring the chain to the frame below the table whereby unbalanced forces tending to tilt the table will be transmitted by said torsion bars from one side of the table to the other to tend to balance said forces
  • pairs of sprockets vinclude an inner sprocket and outer sprocket, ⁇ one chain of each pair being trained around inner sprockets on the ends of said torsion bars and the otherchain of each pair being trained around outer sprockets on the ends of said torsion bars.
  • 3.jlna sheet stacker having a frame and having a lift table'movably mounted on the ⁇ frame for upward and downward movement, and having means for raising and vlowering the lift table, the improvement comprising two torsion bars each joumaled to opposite sides of sai'd lift table and extending thereacross, inner and outer sprockets rigidly attached to each end of each torsion bar, a first leveling chain rigidly attached at one end to said frame above one comer of said lift table and rigidly attached at the other end to said frame below an opposite comer of said lift table, said first leveling chain being entrained under the inner sprocket at one end of one torsion bar and being entrained over the inner sprocket at the corresponding end of the other torsion bar, a second leveling chain rigidly attached at one end to said frame above the bottom end of said first leveling chain and rigidly attached at the other end to said frame below the upper end of said first leveling chain, said second leveling chain being entrained over the
  • said means for raising said lift table includes at least one hydraulic cylinder coupled to said lift table and pump means for forcing hydraulic fluid into said cylinder to raise said lift table, said pump means including a relatively high capacity pump for raising said lift table at a relatively high speed and a relatively low capacity pump for raising said lift table at a relatively low speed, a plurality of rollers joumaled to said lift table and forming the upper surface thereof, a plurality of sprockets coupled to alternate rollers, a drive chain operatively engaged with said sprockets for driving the rollers coupled thereto, a hydraulic motor operatively engaged with said drive chain for driving the same, and hydraulic valve means selectively coupling said low capacity purnp to said hydraulic motor to drive the motor at a relatively low speed and selectively coupling said high capacity pump to said hydraulic motor to drive the motor at a relatively high speed
  • said hydraulic valve means includes a first valve coupled in series with said high capacity pump but not said low capaci'ty pump, a second valve coupled in series with said low capacity pump but not said high capacity pump, a third valve coupled in series with both said first and second valves between said first and second valves and said hydraulic cylinder for raising said lift table, and a fourth valve coupled in series with both said first and second valves between said first and second valves and said-hydraulic motor, whereby said high capacity pump and low capacity pump can be selectively coupled to said hydraulic cylinder for raising said lift table at a selected one of two speeds and can be selectively coupled to said hydraulic motor for rotating said rollers at a selected one of two speeds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US388523A 1973-08-15 1973-08-15 Sheet stacker Expired - Lifetime US3905595A (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
US388523A US3905595A (en) 1973-08-15 1973-08-15 Sheet stacker
AU71731/74A AU481725B2 (en) 1973-08-15 1974-07-29 Sheet stacker
BE147391A BE818606A (fr) 1973-08-15 1974-08-08 Gerbeur de feuilles
FR7427679A FR2240879B1 (enrdf_load_stackoverflow) 1973-08-15 1974-08-09
NL7410716A NL7410716A (nl) 1973-08-15 1974-08-09 Inrichting voor het stapelen van platen of vellen.
DK426074AA DK139469B (da) 1973-08-15 1974-08-09 Apparat til stabling af ark.
DE2438438A DE2438438A1 (de) 1973-08-15 1974-08-09 Blattstapelvorrichtung
GB1647476A GB1462129A (enrdf_load_stackoverflow) 1973-08-15 1974-08-12
NO742894A NO143526C (no) 1973-08-15 1974-08-12 Arkstabler for stabling av ark.
GB3545974A GB1462128A (en) 1973-08-15 1974-08-12 Sheet stacking machine
IT52555/74A IT1018924B (it) 1973-08-15 1974-08-12 Impilatore di fogli
SE7410309A SE387307B (sv) 1973-08-15 1974-08-13 Anordning for att stapla skivor
JP49093182A JPS5048665A (enrdf_load_stackoverflow) 1973-08-15 1974-08-14
CA207,041A CA1006191A (en) 1973-08-15 1974-08-14 Torsion stabilized sheet stacker
CH1115674A CH577930A5 (enrdf_load_stackoverflow) 1973-08-15 1974-08-15
ES449470A ES449470A1 (es) 1973-08-15 1976-07-01 Mejoras introducidas en una apiladora de laminas.
CA257,928A CA1013380A (en) 1973-08-15 1976-07-28 Sheet stacker
DK394277A DK142945C (da) 1973-08-15 1977-09-05 Apparat til stabling af ark

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US388523A US3905595A (en) 1973-08-15 1973-08-15 Sheet stacker

Publications (1)

Publication Number Publication Date
US3905595A true US3905595A (en) 1975-09-16

Family

ID=23534456

Family Applications (1)

Application Number Title Priority Date Filing Date
US388523A Expired - Lifetime US3905595A (en) 1973-08-15 1973-08-15 Sheet stacker

Country Status (14)

Country Link
US (1) US3905595A (enrdf_load_stackoverflow)
JP (1) JPS5048665A (enrdf_load_stackoverflow)
BE (1) BE818606A (enrdf_load_stackoverflow)
CA (1) CA1006191A (enrdf_load_stackoverflow)
CH (1) CH577930A5 (enrdf_load_stackoverflow)
DE (1) DE2438438A1 (enrdf_load_stackoverflow)
DK (1) DK139469B (enrdf_load_stackoverflow)
ES (1) ES449470A1 (enrdf_load_stackoverflow)
FR (1) FR2240879B1 (enrdf_load_stackoverflow)
GB (2) GB1462129A (enrdf_load_stackoverflow)
IT (1) IT1018924B (enrdf_load_stackoverflow)
NL (1) NL7410716A (enrdf_load_stackoverflow)
NO (1) NO143526C (enrdf_load_stackoverflow)
SE (1) SE387307B (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042124A (en) * 1975-06-02 1977-08-16 Stewart Engineering & Equipment Co. Pan unstacking and stacking system
US4350333A (en) * 1980-07-11 1982-09-21 Savin Corporation Large-capacity sheet-stacking apparatus
US4455115A (en) * 1982-07-26 1984-06-19 Champion International Corporation Hydraulic sheet stacking and weighing system
US4805890A (en) * 1987-08-06 1989-02-21 Merrill David Martin Sheet stacking machine
US4861014A (en) * 1987-08-06 1989-08-29 Merrill David Martin Sheet stacking machine
US5088588A (en) * 1989-09-07 1992-02-18 Stewart Systems, Inc. Bakery utensil storage system
US6295922B1 (en) 2000-03-09 2001-10-02 Nu-Tech Printing Machinery, Inc. In-line finishing stacker with unloading pusher apparatus
US20040028517A1 (en) * 2002-07-18 2004-02-12 Lindquist David Allen Automatic down-stacking technology
GB2416751A (en) * 2004-08-07 2006-02-08 Robotic Solutions Plc Stacking apparatus
WO2009141119A3 (de) * 2008-05-21 2010-08-05 WINKLER+DüNNEBIER AG Vorrichtung zur bildung von stapelpaketen
CN104859890A (zh) * 2015-04-22 2015-08-26 昆山硕凯自动化电镀设备有限公司 片材叠片机
CN106335811A (zh) * 2016-08-30 2017-01-18 孔磊 收纸装置及其收纸方法
CN110406974A (zh) * 2019-08-26 2019-11-05 福州中科光芯科技有限公司 一种Bar条叠放设备及其工作方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500243A (en) * 1983-03-07 1985-02-19 The Ward Machinery Company Blank stacking apparatus
FR2594815B1 (fr) * 1986-02-26 1989-03-31 Auvergne Sa Carton Dispositif de reception et d'empilage en bout de chaine de fabrication de materiau en plaque tel que carton ondule
DE3723113A1 (de) * 1987-07-13 1989-01-26 Heinz Dipl Ing Hohenschutz Vorrichtungen fuer einen verlustlosen stapelwechsel insbesondere an querschneidern in der papier- und kartonindustrie
GB9501956D0 (en) * 1995-02-01 1995-03-22 Wheelbase Engineering Ltd Platform levelling mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2817494A (en) * 1955-05-17 1957-12-24 Superior Railway Products Corp Electrode support
US2896946A (en) * 1956-01-11 1959-07-28 Courtaulds Ltd Sheet feeding apparatus
US2921788A (en) * 1955-02-16 1960-01-19 James C Lawrence Single sheet feeders
US3279600A (en) * 1964-04-03 1966-10-18 Moore Dry Kiln Company Lumber sorting and stacking apparatus
US3360078A (en) * 1966-04-05 1967-12-26 Grand Specialties Company Lifts

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0711497U (ja) * 1993-07-29 1995-02-21 太洋無線株式会社 浮 標

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921788A (en) * 1955-02-16 1960-01-19 James C Lawrence Single sheet feeders
US2817494A (en) * 1955-05-17 1957-12-24 Superior Railway Products Corp Electrode support
US2896946A (en) * 1956-01-11 1959-07-28 Courtaulds Ltd Sheet feeding apparatus
US3279600A (en) * 1964-04-03 1966-10-18 Moore Dry Kiln Company Lumber sorting and stacking apparatus
US3360078A (en) * 1966-04-05 1967-12-26 Grand Specialties Company Lifts

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042124A (en) * 1975-06-02 1977-08-16 Stewart Engineering & Equipment Co. Pan unstacking and stacking system
US4350333A (en) * 1980-07-11 1982-09-21 Savin Corporation Large-capacity sheet-stacking apparatus
US4455115A (en) * 1982-07-26 1984-06-19 Champion International Corporation Hydraulic sheet stacking and weighing system
US4805890A (en) * 1987-08-06 1989-02-21 Merrill David Martin Sheet stacking machine
US4861014A (en) * 1987-08-06 1989-08-29 Merrill David Martin Sheet stacking machine
US5088588A (en) * 1989-09-07 1992-02-18 Stewart Systems, Inc. Bakery utensil storage system
US6295922B1 (en) 2000-03-09 2001-10-02 Nu-Tech Printing Machinery, Inc. In-line finishing stacker with unloading pusher apparatus
US20040028517A1 (en) * 2002-07-18 2004-02-12 Lindquist David Allen Automatic down-stacking technology
US6860708B2 (en) * 2002-07-18 2005-03-01 Graphic Packaging International, Inc Automatic down-stacking technology
GB2416751A (en) * 2004-08-07 2006-02-08 Robotic Solutions Plc Stacking apparatus
GB2416751B (en) * 2004-08-07 2007-12-12 Robotic Solutions Plc Stacking apparatus
WO2009141119A3 (de) * 2008-05-21 2010-08-05 WINKLER+DüNNEBIER AG Vorrichtung zur bildung von stapelpaketen
CN104859890A (zh) * 2015-04-22 2015-08-26 昆山硕凯自动化电镀设备有限公司 片材叠片机
CN106335811A (zh) * 2016-08-30 2017-01-18 孔磊 收纸装置及其收纸方法
CN106335811B (zh) * 2016-08-30 2018-07-31 常州汉威信科技股份有限公司 收纸装置及其收纸方法
CN110406974A (zh) * 2019-08-26 2019-11-05 福州中科光芯科技有限公司 一种Bar条叠放设备及其工作方法
CN110406974B (zh) * 2019-08-26 2023-09-22 福州中科光芯科技有限公司 一种Bar条叠放设备及其工作方法

Also Published As

Publication number Publication date
BE818606A (fr) 1974-12-02
JPS5048665A (enrdf_load_stackoverflow) 1975-04-30
FR2240879A1 (enrdf_load_stackoverflow) 1975-03-14
GB1462128A (en) 1977-01-19
IT1018924B (it) 1977-10-20
SE387307B (sv) 1976-09-06
ES449470A1 (es) 1977-07-16
NO143526B (no) 1980-11-24
GB1462129A (enrdf_load_stackoverflow) 1977-01-19
DK139469C (enrdf_load_stackoverflow) 1979-08-13
CH577930A5 (enrdf_load_stackoverflow) 1976-07-30
FR2240879B1 (enrdf_load_stackoverflow) 1979-09-28
DK426074A (enrdf_load_stackoverflow) 1975-04-14
DE2438438A1 (de) 1975-02-27
NL7410716A (nl) 1975-02-18
NO143526C (no) 1981-03-04
NO742894L (enrdf_load_stackoverflow) 1975-03-17
SE7410309L (enrdf_load_stackoverflow) 1975-02-17
CA1006191A (en) 1977-03-01
AU7173174A (en) 1976-01-29
DK139469B (da) 1979-02-26

Similar Documents

Publication Publication Date Title
US3905595A (en) Sheet stacker
US4764074A (en) Pallet loading apparatus
US4255074A (en) Palletizing machine
US3381828A (en) Filled-bag stacking palletizer
US3131819A (en) Shuttle piler
US3772972A (en) Stacker
GB1275506A (en) Pallet loading apparatus
US3035716A (en) Bale stacker
US2895624A (en) Elevator for use in a lumber stacker
US3640407A (en) Apparatus for handling books
CN221521307U (zh) 一种多工位的码垛装置
CN211224074U (zh) 一种纸板自动码垛装置
US3200969A (en) Container palletizing and depalletizing machine
US3682331A (en) Rack loading and unloading apparatus
USRE24124E (en) Sheet handling mechanism
CN219031020U (zh) 一种包装箱生产加工用纸板堆叠装置
CN218344626U (zh) 一种砖块留孔码垛设备
US4339220A (en) Stacking of materials
US4193726A (en) Apparatus for handling of flat goods
US3297318A (en) Means and method for stacking sheets of paperboard or cardboard
CN220392619U (zh) 石膏基自流平码垛装置
US3211449A (en) Papermaking machine
DE3170965D1 (en) Device for piling stackable goods, especially mineral-fibre plates in a production line
US3591020A (en) Stacker for cases and the like
JPH04144835A (ja) シート材の積載装置