EP0147319A2 - Verfahren und Vorrichtung zum aufeinanderfolgenden Zuführen von Blattstapeln - Google Patents

Verfahren und Vorrichtung zum aufeinanderfolgenden Zuführen von Blattstapeln Download PDF

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Publication number
EP0147319A2
EP0147319A2 EP84402682A EP84402682A EP0147319A2 EP 0147319 A2 EP0147319 A2 EP 0147319A2 EP 84402682 A EP84402682 A EP 84402682A EP 84402682 A EP84402682 A EP 84402682A EP 0147319 A2 EP0147319 A2 EP 0147319A2
Authority
EP
European Patent Office
Prior art keywords
sheet
stack
end wall
wedge head
sheet stack
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.)
Granted
Application number
EP84402682A
Other languages
English (en)
French (fr)
Other versions
EP0147319B1 (de
EP0147319A3 (en
Inventor
Kozo C/O Kanzaki Paper Suzuki
Takateru C/O Kanzaki Paper Sakaguchi
Osamu C/O Kanzaki Paper Tomiya
Yoshiaki C/O Kanzaki Paper Tanaka
Kazuhiko C/O Kanzaki Paper Saiwai
Shinichi C/O Kanzaki Paper Yasumura
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.)
Kanzaki Paper Manufacturing Co Ltd
Original Assignee
Kanzaki Paper Manufacturing Co Ltd
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
Priority claimed from JP58243154A external-priority patent/JPS60132849A/ja
Priority claimed from JP9541484U external-priority patent/JPS6111639U/ja
Application filed by Kanzaki Paper Manufacturing Co Ltd filed Critical Kanzaki Paper Manufacturing Co Ltd
Publication of EP0147319A2 publication Critical patent/EP0147319A2/de
Publication of EP0147319A3 publication Critical patent/EP0147319A3/en
Application granted granted Critical
Publication of EP0147319B1 publication Critical patent/EP0147319B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H3/00—Separating articles from piles
    • B65H3/32—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile
    • B65H3/322—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile for separating a part of the pile, i.e. several articles at once
    • B65H3/325—Separating articles from piles by elements, e.g. fingers, plates, rollers, inserted or traversed between articles to be separated and remainder of the pile for separating a part of the pile, i.e. several articles at once the pile being pre-marked
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/48—Air blast acting on edges of, or under, articles
    • 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
    • B65H33/04—Forming counted batches in delivery pile or stream of articles by inserting marker slips in pile or 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles

Definitions

  • the present invention relates to a method of delivering sheet stacks, more particularly, to a method an apparatus for drawing out a specific number of sheets from sheet stacks in pile for delivery to ensuing processes.
  • any sheet products made of paper, plastics, cloth, metal foil, etc. are first cut into a specific size by cutters, for example, by a sheet cutter or a guillotine cutter, and then defective sheets are eliminated by using a fault detector or by visual inspection of inspectors as required, and then a specific number of sheets are split into a single unit (hereinafter called "sheet stack"), which are finally packed and delivered.
  • sheet stack a single unit
  • an automatic paper feeder disclosed by the Japanese Utility Model Publication No. 21,704 of 1981 is designed to transfer a specific number of sheets in stack to the ensuing process after counting each piece of sheets from the sheet pile.
  • Such an apparatus however contains a complex counting mechanism and costs a fairly long time for counting the actual number of sheets.
  • an apparatus disclosed by the Japanese Patent Laid-Open No. 183,560 of 1983 uses a computer for converting the number of the required sheets into the layer thickness value before transferring the sheet layer thus defined.
  • Such a device still needs to define the actual standard and grade of papers being dealt and the calculation needed for said conversion against each specific number of sheets, and in addition, it has an extremely complex mechanism for measuring the sheet layer thickness.
  • Another apparatus disclosed by the Japanese Patent Laid-Open No. 162,447 of 1983 provides such a mechanism designed for pushing forward an appropriate number of sheets from the sheet pile to ensuing processes by using a pusher unit.
  • This device however cannot optionally provide a specific number of sheets for delivery because the number of sheets in stack is unavoidably constrained by the thickness of the sheet layer provided in conjunction with the pusher's capacity (normally, said thickness ranges from several centimeters to a maximum of 10 centimeters), i.e., it is unavoidably subject to the height for performing one-round lifting operation with a lift mounted with a sheet stack.
  • the same also applies to such an apparatus which is provided with means for sandwiching sheet layers for transferring sheet stacks according to the disclosed Japanese Utility Model Publications of 1980, Nos. 36,421 and 47,779.
  • the present invention provides the method for sequentially feeding sheet stacks bordered by sheet markers from a pile of aligned and stacked sheets containing sheet markers inserted into these sheets through edge line at specific intervals with bare portion left outside, using a sheet stack delivering apparatus including at least lifter means that mounts sheet stacks to allow the uppermost sheet stack to be sequentially transferred to a pre-determined level; a wedge-type head for separating sheet stacks comprising its tip part facing the edge line of the sheet pile at a position close to the sheet marker bordering the uppermost and the second sheet stacks and also the upper tilt surfaces and the bottom surface ending at the tip part; and means for transferring the uppermost sheet stack by holding and pushing forward an edge line of the uppermost sheet stack split by the wedge head; said method comprising the steps of:
  • the suction means which is freely movable in the vertical directions between the wedge head and the uppermost sheet stack, and whew the marker sensor of the wedge head has identified the sheet markers, said suction means ascends to raise the sheet markers so that gap can be generated between the uppermost and second sheet stacks. Therefore, in this case, it is not necessary to provide the sheet stack splitting head with vacuum means and set the wedge head to any tilted angle.
  • the constitution of the present invention by correctly identifying the needed number of sheets defined by sheet markers inserted into these sheets at specific intervals and also by generating a gap by slightly lifting the sheet markers, it has become possible to securely separate the transferrable uppermost sheet stack from the second layer of the sheet stacks without incurring even the slightest damage onto the sheet surface bordering them, and yet, without incorrectly dividing them, thus allowing the tip part of forwarding means to easily and securely receive the end wall of the separated sheet stack before delivery to the ensuing process.
  • Fig. 1 shows one of the preferred embodiments of the present invention related to the sheet stack delivery method, which sequentially delivers sheet stacks split from sheet pile by sheet markers to an automatic packing machine.
  • the sheet-stack delivery apparatus shown in Fig. 1 comprises a lifter 23 for loading thereon and lifting a sheet stack stepwise, a pneumatic cylinder 20 for pressing a portion close to the right end in this Figure 1 of the upper surface of sheet pile 21 at a pre-determined level, a robot 4 supporting the wedge head for splitting sheet stacks located in the upper right end in this Figure 1 of the sheet pile 2 1 , and the sheet stack feeder 25 that extends itself along the upper surface of sheet pile 2 1 .
  • An automatic packing machine 1 8 is installed at a position close to the other end of sheet pile 2 1 and opposite from the wedge head 1.
  • the wedge head 1 which is the main unit of the apparatus is secured, for example, to the arm member 5 of the robot 4 or the like by the head connector 2 and the support plate 3, while performing such operations including feeding of sheets, retreat itself, and up-and-down movements of its front and rear ends.
  • the front edge angle 6 formed by the tilt surface 6 of the wedge head 1 projecting in the direction of sheet pile 21 and the flat and level bottom surface 7 should desirably be adjusted within a range from about 13 ° to a maximum of 30° so that no damage can be incurred to the sheet surface when inserting the tip end 9 of the wedge head 1 into the sheet pile.
  • the tip angle (8) exceeds 30° , the tip end of the wedge head 1 can hardly be inserted into the sheet pile 2 1 . Conversely, if the tip angle 8 is norrower than 13 °, even though the tip end of the wedge head 1 can be easily inserted, sheets will be easily damaged, and in addition, it will become difficult to precisely install sensors 1 0 in position, which will be described later on.
  • the wedge head 1 When the wedge head 1 ascends along the wall surface of the sheet pile 21, since it keeps ascending towards the wall surfaces of the sheet markers 19 and sheets, it is advantageous for the wedge head 1 to install sensors 10, for example, photoelectric sensor means onto the wedge head 1 . In particular, as shown in the preferred embodiment, it is more desirable to install sensor means 1 0 either in the front edge of the lateral part or in the bottom edge portion of the tilt surface of the head 1.
  • the bottom edge portion of the tilt surface 6 of the wedge head 1 is provided, for example, with such fixing means 11 comprising a suction hole, thus allowing the sheet marker 19 in contact with the tilt surface 6 can be securely sucked by a vacuum pump for fixing.
  • material for composing the wedge head 1 may be optionally selected, for example, from steel, non-ferrous metal, sintered material, or plastics.
  • material for composing the wedge head 1 may be optionally selected, for example, from steel, non-ferrous metal, sintered material, or plastics.
  • such materials as phenol resin, polyamid resin, polyacetal resin, polytetrafluorethylene resin, POLYFLON YF, POLYFLON PF, and nylon containing molybdenum di-sulfide, etc. are particularly suited for composing the wedge head 1 .
  • the head surface can also be finished either by the hard chrome plating, surface quenching, or by the melted metal plating.
  • the bottom surface 7 of the wedge head 1 is provided with a guide blade 12 made of relatively rigid and thin material for guiding the wedge head 1 as shown in Fig. 1 , for example, the guide blade 1 2 can be extended to any desired length from the tip end of the wedge head 1 along the bottom surface of the wedge head 1 by being driven by a lineared motor 13 so that the guide blade 1 2 can freely project or retreat itself.
  • a head guide is made of plastic materials for ensuring the surface smoothness.
  • the forwarding unit 25 comprises the forwarding arm 14 which, while remaining in the standby mode, is placed in such a position close to the end wall of sheet pile 2 1 on the part of the wedge head 1, the forwarding cylinder 14 for driving the forwarding arm 14, and the guide rod 16, where the forwarding arm 14 slides over the guide rod 16 to send out the split sheet stack 1 7 onto the automatic packing machine 1 8.
  • the pneumatic cylinder 20 available for pressing the sheet stacks is selectively provided when dealing with extremely slippy sheets to prevent either the collapse of sheet stack 1 7 or. the disengagement of sheet markers from the sheet stacks 17.
  • the pallet 22 mounting sheet pile 2 1 is carried, for example, by either a folklift truck or by an automatic conveyer, and then the pallet 22 is transferred onto the table lifter 23, while the height position of the sheet stack 1 7 is adjusted to a desired level by the up-and-down movement of the table lifter 23.
  • sheet markers 19 are inserted into sheet pile 21 so that the substantial bare portion of the sheet markers 19 can remain exposed at an edge line of the sheet pile, thus allowing to define each sheet stack 17.
  • Fig. 4A shows that every part of the delivery device remains in the initial status, where the press cylinder 20 withdraws its arm, while the tip end of the wedge head 1 is set in such a position slightly apart from the bare portion of the first sheet marker 19 and remains in a low position.
  • the press cylinder 20 first extends its arm to press the upper edge portion of the sheet pile 2 1 , and then the robot 4 drives the wedge head 1 .
  • the wedge head horizontally moves to the end wall of the sheet pile 2 1 and stops its movement at a position immediately before it comes into contact with the end wall of the sheet pile 2 1 .
  • the wedge head 1 then ascends in the direction of the uppermost sheet marker 19 while confirming the position of the sheet markers 19 and the end wall of the sheet pile using the photoelectric sensor incorporated, and then mounts the bare portion of the sheet marker 19 on its tilted surface, and finally stops at a slightly higher position.
  • the wedge head 1 stops, the suction hole provided on the tilt surface of the head 1 starts to operate so that the sheet marker 19 can be securely held on the tilt surface.
  • the rear end of the wedge head 1 is slightly brought upward by pivoting on the tip end of the head.itself or thereabout so that gap enough to permit entry of the head guide 12 can be generated beneath the sheet marker 19 of the first sheet stack 17.
  • the wedge head 1 is then brought downward to a specific position suited for the guide to operate itself, and . then the wedge head 1 returns to the horizontal position as shown in Fig. 4D. Then, as shown in Fig.
  • the head guide 12 is inserted into sheet pile up to a depth enough to permit the wedge head 1 to enter inside, and then stops the sucking operation of the suction hole to release the sucked sheet marker 19.
  • the upper end of the sheet pile 21 is also set free by causing the arm of the press cylinder 20 to ascend.
  • the wedge head 1 moves over the head guide 12 and causes its front half portion to enter between the sheet marker 19 and the head guide 12.
  • the end wall of the sheet stack 17 is lifted to a certain height needed for operating the forwarding arm 14 so that the condition shown in Fig. 4F can be entered into effect.
  • the suction hole is reactivated to secure the sheet marker 19 onto the tilt surface of the wedge head 1, and then as shown in Fig. 4G, the hooked tip end of the forwarding arm 14 is set to the end wall of the lifted sheet stack 17, and finally, the lifted sheet stack 17 is pushed outside in the direction of the automatic packing machine 18.
  • an air nozzle 24 is set to the forwarding arm 14, which then blows air into a certain portion beneath the lifted sheet stack 17 so that the sheet stack 17 can be easily sent out. This is particularly effective when drawing out such a sheet stack containing sheets that cannot easily slip.
  • the manner of producing a sufficient gap beneath the sheet marker 19 is not limitted to such a manner as shown in Fig. 4C in which the rear end of the wedge head 1 is pivotally raised about the tip end thereof, but can be constituted from various manners, for example, the tip end may be rather raised about the rear end substantially reported, or the whole body of the wedge head 1 may be lifted maintaining the horizontal posture, and other possible manners can be employed in accordance with the implementation of the invention.
  • the apparatus then repeats the same operation as was done by the procedures described above, thus sequentially sending out the piled sheet stacks. Needless to say, these operations can also be automatically and sequentially executed by the program control.
  • Fig. 5 shows a lateral view of a configuration of the apparatus incorporating another preferred embodiment of the present invention.
  • the wedge head 51, guide bar 53, and the pusher unit 54 being quite similar to those used for the preferred embodiment described earlier, are respectively secured to the arm 65 of the robot 64 freely movable in the three dimensional directions X, Y, and Z.
  • Sheet pile 21 mounted on the table lifter 23 is lifted when each sheet stack is sent to the left, while the upper surface of which is monitored by the photoelectric switch so that the upper surface can always be held at a specific height. Also, sheet pile 21 contains sheet makers 19 which were inserted at specific intervals during the preceding process.
  • a tilted prone-faced suction disk 52 is provided between the wedge head 51 at its standly position and the end wall of the sheet pile 21, while the lineared motor 56 is also provided for driving the suction disk 52 in the vertical directions.
  • Reference number 57 indicates the other lineared motor driving the pusher unit 54 in the forward and backward directions against the arm 65 of the robot 64. These drivers are secured to the arm A.
  • the edge portion of the suction disk 52 has a tilted angle that nearly faces the tilted angle of the head 51, while said edge portion is connected to a vacuum pump (not shown) to suck up the sheet marker 19.
  • the bottom surface of the wedge head 51 is held in a horizontal plane, and provided with a shallow groove in the forward and backward directions to allow the guide bar 53 to move back and forth along the groove.
  • Reference number 58 indicates a lineared motor driving the guide bar 53, both of which are connected to each other through wires provided inside the guide tube 59.
  • Reference number 60 indicates a pressor element, which is vertically driven by the pneumatic cylinder 61 secured to the frame 63 being integrated with the base of the robot 64 for pressing the upper surface of the sheet pile 21.
  • Reference number 62 indicates a control unit including such switches for controlling those lineared motors thus described and the suction disk 52 plus the electromagnetic valve as well.
  • Control of the entire system operation is executed by means of the sequential controller 66 shown in the lower right position of Fig. 6.
  • the sequential controller 66 shown in the lower right position of Fig. 6.
  • the upper surface of the sheet pile 21 is brought up to the position shown in Fig. 5, and simultaneously, air is fed into the pneumatic cylinder 61 to lower the position of the pressor element 60 for pressing the sheet pile 21.
  • the suction disk 52 starts to such air. While the sheet pile ascends, the suction disk 52 remains at a designated position, and as a result, the uppermost sheet marker 19 projecting from the end wall of the sheet pile 21 comes into contact with the suction disk 52 so that it can be securely sucked by it.
  • the control unit 62 detects the depressurized (vacuum) effect so that the linear head motor 56 can be activated to cause the suction disk 52 to ascend to a specific height.
  • the photoelectric switch activates itself to stop the ascending operation of the table lifter 23.
  • the suction disk 52 ascends, the sheet marker 19 being vacuumed by it also ascends, and as a result, as shown in Fig 6A, the end wall of the sheet pile 21 above the sheet marker 19 is slightly brought upward, thus generating gap "g".
  • the lineared motor 58 rotates to cause the guide bar 53 to proceed.
  • the guide bar 53 remains in parallel with the bottom surface of the wedge bead 51.
  • the guide bar 53 also keeps proceeding in the slightly face-up posture before being inserted into a position beneath the sheet marker 19 being sucked by the suction disk 52.
  • the tip end of the guide bar 53 keeps sliding along the bottom surface of the sheet marker 19 until it is smoothly inserted into sheets from the end wall of sheet pile (see Fig. 6B).
  • plastic materials featuring satisfactory smoothness, wear resistance, and rigidity are suited for making up the guide bar 53.
  • polyethylene resin or polytetrafluorethylen resin is most suitable.
  • the wedge head 51 When the guide bar 53 is inserted into sheets through the end wall, the wedge head 51 then goes forward using the guide bar 53 as a rail, and as shown in Fig. 6C, the wedge head 51 is then inserted into sheet pile 21 through gap provided between the sheet marker 19 and the guide bar 53. Since the wedge head 51 is of wedge shape, insertion of the wedge head 51 causes the sheet pile to be definitely split into two parts, i.e., the uppermost part containing a specific number of sheets and the remainder beneath the inserted wedge head 51. Now, the arm 65 of the robot 64 shown in Fig. 5 receives the drive force in the descending direction to cause the wedge head 51 to press the sheet pile 21 located below the head itself.
  • Operating position of the wedge head 51 in the vertical directions is determined by the result of the detection of the sheet marker's position.
  • the position of the sheet marker is detected by decrease of the pressure inside the suction tube when the suction disk 58 came into contact with the sheet marker 19 and sucked it.
  • photoelectric sensor means set in the same height as that of the wedge head 51 and integrally moves up and down together with the wedge head 51.
  • such photoelectric sensor means may be incorporated in the wedge head 51.
  • the position of .the sheet markers may slightly vary at the left and right ends, depending on the method of inserting the sheet markers during the sheet cutting process, if it is necessary to detect the positions of sheet markers by moving the wedge head 51 to the left and to the right to deal with varied positions of these markers, it is quite convenient to integrally provide the wedge head 51 with such photoelectric sensor means as a unit.
  • Fig. 7 shows the upper surface of the wedge head, in which the extreme right end as shown indicates the tip portion of the wedge head, while there are a pair of oval concaves 74, and a comparatively small concave 75 in the tilt surface of the tip portion of the wedge head thus making up the opening part of photoelectric sensing means.
  • Fig. 8 shows a sectional view taken on line 8-8 of Fig. 7. In reference to the drawing of concave 74, a through-hole is formed through the wedge head 71 extended from the left end as shown, through which an optical fiber 76 is inserted.
  • a stationary light source L is provided at the left tip end of the optical fiber 76 projecting from the wedge head 71, where the light source L is provided across lens "1" and a half mirror 78 so that light can be collected into lens "1” and then led into the optical fiber 76 through the half mirror 78.
  • a mirror 77 being 45° tilted upward in front of the right end of the optical fiber 76 is installed in the concave 74. Light emitted from the right end of the optical fiber 76 reflects from the mirror 77. Howevei light doesn't reflect itself if nothing is present above.
  • the sheet marker 19 is positioned above the concave, after being reflected from mirror 77, light emitted from the optical fiber 76 then reflects from the sheet marker 19 and then again enters into the right end of the optical fiber 76.
  • light is emitted from the left end of the optical fiber 7 6 to be reflected upward by the half mirror 78 and then enters into the photo-reception element 79 before eventually being detected by it.
  • the mirror 78 has a transparent portion in its center position to allow beams from the light source L to enter _ into the left end of the optical fiber 76.
  • Fig. 9 is a sectional view taken on lint 9-9 of Fig. 7.
  • Reference number 80 indicates the optical fiber which is provided in a hole extended from the central concave to the rear end of the wedge head 71, while the arrangement in the left end of the optical fiber is exactly identical to that of Fig. 8.
  • the emitted light then radiates the lateral surface of sheet pile 21. While the wedge head 71 remains in a low position and the sheet markers 19 are at the position of solid line shown in Fig. 9, light reflected from the lateral surface of sheet pile 21 enters from the right end of the optical fiber 8 0. However, since there is a substantial distance from the lateral surface of the sheet pile 21, only a negligiable amount of light can again enter into the right end of the optical fiber 80. However, when the wedge head 71 remains in a correct height, as shown by the dotted line of Fig. 9, the sheet marker 19 covers the concave 75.
  • Fig. 10 is the longitudinal sectional view when monitoring the approaching process of the wedge head 71' and the sheet pile 21 by using the wedge head 71 1 incorporating photo electric sensor means identical to that was shown in Fig. 9.
  • light emitted from the optical fiber 80' first reflects against the lateral side of the sheet pile 21 and then enters into the tip of the optical fiber 80' and goes out of its rear end at a specific diffusion angle. The outgoing light is then reflected by the half mirror 78', and then enters into the photo-reception element 79' before eventually being detected by sensor means.
  • the reflected light from end wall of sheet pile entering into the tip end of the optical fiber 80' irregularly reflects, the farther the distance from the end wall of the sheet pile, the lower will be the luminance against the end wall of the sheet pile, and as a result, the amount of light reflecting from the end wall of the sheet pile 21 entering into the tip end of the optical fiber 80' sharply decreases. Consequently, by measuring the sharply decreased output from the photo-reception element 79 1 , the distance between the tip end of the wedge head 71' and the sheet pile 21 can be correctly identified.
  • the photoelectric sensor When the wedge head 71' scans the position of the sheet marker 19, if the output from the photo-reception element 79' exceeds a specific level, the photoelectric sensor then detects that the tip end of the wedge head 71' approaches too close to the end wall of the sheet pile, and then causes the wedge head 71' to stop its forwarding movement and finally activates alarm means.
  • Fig. 11 shows the longitudinal sectional view of the pusher unit 102 provided with such means for monitoring the wedge head 71' approaching towards the sheet pile like the one described above.
  • Reference numeral 103 indicates the optical fiber that penetrates finger "f" of the pusher unit 102, being provided with the identical configuration of the rear end to that of the rear end of the optical fiber 80' shown in Fig. 10. Finger “f” is inserted into gap "g" generated through the end wall of the sheet pile 21 by being led by the wedge head 71'.
  • Fig. 12 shows another preferred embodiment of the present invention designed for generating alarm upon detection of such a symptom in which the guide bar beneath the wedge head cannot be smoothly inserted into gap generated through the end wall of sheet pile.
  • the apparatus shown in Fig. 12 uses such component parts substantially identical to those which were shown in Figs 5 and 6, where such parts indicated by the identical reference numbers match those parts appearing in the following description.
  • the microswitch 121 for sensing the overloaded guide bar and the related control circuit comprise additional proper parts different from other embodiments.
  • the microswitch 121 comprises an actuator lever provided above wire 120.
  • wire 120 is pressed by the lineared motor 58, and as a result, the wire 120 bends itself to form an upward convex as shown by broken line, causing the actuator of the microswitch 121 to be pressed ON and allowing sensor means to detect that the guide bar cannot properly be inserted into the sheet pile 21, and finally, as soon as the lineared motor 58 is turned OFF, alarm means is activated.
  • This preferred embodiment is designed to inhibit the guidebar to be unreasonably inserted into sheets, thus effectively preventing even the slightest damage from incurring onto the sheet surface, and at the same time, ensuring the guide bar correctly and smoothly inserted into the designated position.
  • Fig. 13 shows another preferred embodiment in which the pusher unit 14 to 54 (see Figs 1, 5 and 12 ) is driven in the slightly tilted upward direction.
  • this embodiment provides such a control unit causing the pusher unit 14 or 54 to go forward after forming gap in the border end wall of sheet stacks using the wedge head before pushing forward the uppermost sheet stack.
  • the bottom surface of the pusher unit 14 to 54 remains apart from the upper surface of the second sheet stack to prevent damage to be caused by abrasion.
  • About 2° of the tilted angle is ideally suited for this arrangement.
  • this embodiment since the pusher unit goes forward at a tilted angle slightly up from the horizontal level, even if a certain bending moment may affect the tip part of the pusher unit from the sheet stack, the bottom surface of the pusher unit doesn't rub the upper surface of the second sheet stack at all, and thus, this embodiment is advantageous when dealing with delicate sheets including art paper, coated paper, high-glazed finish paper, etc.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP19840402682 1983-12-21 1984-12-20 Verfahren und Vorrichtung zum aufeinanderfolgenden Zuführen von Blattstapeln Expired - Lifetime EP0147319B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP243154/83 1983-12-21
JP58243154A JPS60132849A (ja) 1983-12-21 1983-12-21 シ−ト束給送方法
JP9541484U JPS6111639U (ja) 1984-06-25 1984-06-25 シ−ト束給送装置
JP95414/84 1984-06-25

Publications (3)

Publication Number Publication Date
EP0147319A2 true EP0147319A2 (de) 1985-07-03
EP0147319A3 EP0147319A3 (en) 1987-06-10
EP0147319B1 EP0147319B1 (de) 1990-03-07

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EP19840402682 Expired - Lifetime EP0147319B1 (de) 1983-12-21 1984-12-20 Verfahren und Vorrichtung zum aufeinanderfolgenden Zuführen von Blattstapeln

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EP (1) EP0147319B1 (de)
DE (1) DE3481506D1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612780A1 (de) * 1986-04-16 1987-10-22 Heinrich Baumann Fa Verfahren und vorrichtung zum verarbeiten von abgezaehlten lagen aus papierbogen
FR2618133A1 (fr) * 1987-07-18 1989-01-20 Winkler Duennebier Kg Masch Procede et dispositif pour partager une pile, mobile, d'objets flexibles en piles partielles d'un nombre donne d'objets
US4877367A (en) * 1986-12-16 1989-10-31 Wrapmatic S.P.A. Apparatus for the automatic separation into reams of a stack of large format sheets of paper the ream divisions of which are counted off previously and indicated by markers
DE3907037A1 (de) * 1989-03-04 1990-09-06 Heidelberger Druckmasch Ag Vorrichtung zur bogenlaengenabfrage in einer bogen bearbeitenden maschine, insbesondere einer bogen-rotationsdruckmaschine
DE3906960A1 (de) * 1989-03-04 1990-09-06 Heidelberger Druckmasch Ag Vorrichtung zur bogenlaengenabfrage in einer bogen bearbeitenden maschine, insbesondere einer bogen-rotationsdruckmaschine
EP0529272A1 (de) * 1991-07-19 1993-03-03 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Einrichtung zur Aufnahme von biegeschlaffen flächigen Teilen
DE4142162A1 (de) * 1991-12-20 1993-06-24 Kolbus Gmbh & Co Kg Verfahren zum be- und entladen von paletten mit stapeln von flaechigen produkten und vorrichtung zur durchfuehrung des verfahrens
EP0771749A1 (de) * 1995-10-31 1997-05-07 WRAPMATIC S.p.A. Vorrichtung zur Kontrolle und Justierung der Stapelhöhe in Maschinen zum Herausgreifen von losen Bogenstapeln grosser Abmessungen
CN114620281A (zh) * 2022-04-13 2022-06-14 浏阳市颐和隆烟花集团有限公司 一种围招上纸机构

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GB1312038A (en) * 1971-06-16 1973-04-04 Gadler G A B Apparatus for transferring paper sheets in piles from a stack thereof towards a treatment zone

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
GB1312038A (en) * 1971-06-16 1973-04-04 Gadler G A B Apparatus for transferring paper sheets in piles from a stack thereof towards a treatment zone

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612780A1 (de) * 1986-04-16 1987-10-22 Heinrich Baumann Fa Verfahren und vorrichtung zum verarbeiten von abgezaehlten lagen aus papierbogen
US4877367A (en) * 1986-12-16 1989-10-31 Wrapmatic S.P.A. Apparatus for the automatic separation into reams of a stack of large format sheets of paper the ream divisions of which are counted off previously and indicated by markers
FR2618133A1 (fr) * 1987-07-18 1989-01-20 Winkler Duennebier Kg Masch Procede et dispositif pour partager une pile, mobile, d'objets flexibles en piles partielles d'un nombre donne d'objets
GB2207125A (en) * 1987-07-18 1989-01-25 Winkler Duennebier Kg Masch Dividing stacks
GB2207125B (en) * 1987-07-18 1991-11-20 Winkler Duennebier Kg Masch Method and apparatus for dividing a moving stack of flexible workpieces into partial stacks
US5037080A (en) * 1989-03-04 1991-08-06 Heidelberger Druckmaschinen Ag Device for scanning the length of a sheet in a sheet processing machine, especially a sheet-fed rotary printing press
DE3906960A1 (de) * 1989-03-04 1990-09-06 Heidelberger Druckmasch Ag Vorrichtung zur bogenlaengenabfrage in einer bogen bearbeitenden maschine, insbesondere einer bogen-rotationsdruckmaschine
DE3907037A1 (de) * 1989-03-04 1990-09-06 Heidelberger Druckmasch Ag Vorrichtung zur bogenlaengenabfrage in einer bogen bearbeitenden maschine, insbesondere einer bogen-rotationsdruckmaschine
EP0529272A1 (de) * 1991-07-19 1993-03-03 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Einrichtung zur Aufnahme von biegeschlaffen flächigen Teilen
DE4142162A1 (de) * 1991-12-20 1993-06-24 Kolbus Gmbh & Co Kg Verfahren zum be- und entladen von paletten mit stapeln von flaechigen produkten und vorrichtung zur durchfuehrung des verfahrens
US5375967A (en) * 1991-12-20 1994-12-27 Kolbus Gmbh & Co. Kg Method and apparatus for palletizing and depalletizing
EP0771749A1 (de) * 1995-10-31 1997-05-07 WRAPMATIC S.p.A. Vorrichtung zur Kontrolle und Justierung der Stapelhöhe in Maschinen zum Herausgreifen von losen Bogenstapeln grosser Abmessungen
CN114620281A (zh) * 2022-04-13 2022-06-14 浏阳市颐和隆烟花集团有限公司 一种围招上纸机构
CN114620281B (zh) * 2022-04-13 2024-03-01 浏阳市颐和隆烟花集团有限公司 一种围招上纸机构

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DE3481506D1 (de) 1990-04-12
EP0147319B1 (de) 1990-03-07
EP0147319A3 (en) 1987-06-10

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