US3345923A - Sheet collecting mechanism - Google Patents

Sheet collecting mechanism Download PDF

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Publication number
US3345923A
US3345923A US275654A US27565463A US3345923A US 3345923 A US3345923 A US 3345923A US 275654 A US275654 A US 275654A US 27565463 A US27565463 A US 27565463A US 3345923 A US3345923 A US 3345923A
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United States
Prior art keywords
cylinder
sheets
deflector
stripper
gathering
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
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US275654A
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English (en)
Inventor
Erk Amir
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Individual
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Individual
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Publication of US3345923A publication Critical patent/US3345923A/en
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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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/50—Piling apparatus of which the discharge point moves in accordance with the height to the pile
    • B65H29/51—Piling apparatus of which the discharge point moves in accordance with the height to the pile piling by collecting on the periphery of cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/50—Driving mechanisms
    • B65H2403/51—Cam mechanisms
    • B65H2403/512—Cam mechanisms involving radial plate cam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/63—Oscillating, pivoting around an axis parallel to face of material, e.g. diverting means
    • B65H2404/632—Wedge member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/30—Numbers, e.g. of windings or rotations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • 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

Definitions

  • the invention relates to an apparatus for gathering sheets of paper or cardboard or foils or other products in leaf form, and for advancing the pack consisting of a predetermined number of sheets to stackers, the apparatus being equipped with :a gathering cylinder, a deflectorstripper and driven sling bands cooperating with the gathering cylinder.
  • the term deflector-stripper is used to designate the member in form of a switch tongue which leads the sheets on and off the collecting cylinder.
  • the above-described apparatus have become well established on account of their low cost of construction as compared with other gathering devices for materials in leaf form, and they are generally used in tandem with a crosscutter so as to collect the sheets produced by the crosscutter and then advance them to stackers or other associated machines.
  • the diameter of the band driving roll has been selected in such a manner, on the basis of the average slippage between the bands and the cylinder as determined by practical experimentation, that an approximate equalization is achieved in gathering a particular number of sheets on the cylinder.
  • the numberof sheets per pack changes, or when the feeding of the sheets to' the gathering cylinder is irregular as in the case of gathering cylinders used in tandem with sorting systems, or when the friction characteristics of the sheets vary, it is impossible to equalize the slippage by means of the size of the band driving roll.
  • the invention provides for the adjustable driving of the sling bands and provides a system for controlling the deflector-stripper, wherein two switching devices cooperate, one of which permits the deflector-stripper to be switched into the stripping position only over that peripheral portion of the cylinder that is not covered by the sheets, while the other switching apparatus is controlled by an adjustable counting mechanism and releases the deflector-stripper only after a certain number of sheets have been collected on the gathering cylinder.
  • the controllability of the sling band drive then makes it possible without difliculty to compensate for the slippage that occurs, which diifers according to the conditions of operation. It is possible to provide a separate drive for the sling bands; expediently, however, an intermediate gear that meshes with the peripheral gear of the gathering cylinder serves to drive the bands, the said intermediate gear turning the band driving roll through an infinitely variable speed transmission.
  • Compensation for the slippage by adjustment of the sling band drive can be performed manually. It is advantageous, however, to provide a preferably photoelectric sensing device to detect the sheet displacement on the gathering cylinder and to automatically regulate the speed change transmission accordingly.
  • the transmission in this case needs to be designed only for a transmission ratio range of about 1 to 1.2 as the slippage never exceeds 20%
  • the deflector-stripper controlling system also provided by the invention assures that the deflector-stripper always operates in the sheet rhythm and switches into the stripping position only when the cylinder has assumed a predetermined position.
  • Systems operating directly in tandem with a crosscutter from which each sheet runs to the gathering cylinder can be equipped with a counting mechanism which is oper atively connected with the gathering cylinder and performs one counting step with each revolution of the cylinder.
  • the counting mechanism can instead be connected with a preferably photoelectric system for the registration of the sheets fed to the gathering cylinder. This latter improvement finds application preferably whenever it is possible that the feeding of the sheets to the gathering cylinder may be irregular.
  • Counting mechanisms of the prior art are used, which are adjustable in such a manner that the disengagement of a pawl or the deenergizing of a holding magnet which they produce is performed in each case after a certain variable number of stepping or counting operations.
  • an embodiment of the invention provides a cam which rotates with the gathering cylinder and which cooperates with a cam follower mounted at one end of a lever which is mechanically connected with the deflector-stripper and is held by an electromagnet or by a pawl, against the urging of a spring, in a position wherein it keeps the follower and cam out of contact, the counting mechanism being designed to trip the pawl or deenergize the magnet only when the cam lobe is pre sented to the cam follower.
  • the gathering cylinder can cooperate with an impulse generator, preferably an inductive impulse generator, whose impulses are fed, through an amplifier if desired, to the counting mechanism.
  • an impulse generator preferably an inductive impulse generator
  • FIG. 1 schematically represents a novel apparatus for the gathering of sheets, wherein the system that controls the deflector-stripper is operated mechanically in part and in part electromagnetically.
  • FIG. 2 shows an embodiment of the system that differs from the embodiment in FIG. 1.
  • FIG. 3 schematically illustrates an electrical and electromagnetic control for holding and releasing the deflector-stripper.
  • FIG. 4 shows a detail of the apparatus
  • FIG. 5 is an exploded view of the cam means used.
  • 1 designates the shaft of the gathering cylinder 2.
  • a deflector-stripper 3 cooperates with the gathering cylinder, the said deflector-stripper being fastened at a pivot point 4 to a stationary part of the apparatus in such a manner that its fingers 5 directed towards the gathering cylinder can be moved away from the gathering cylinder (to a position in which it deflects the sheets onto the cylinder), or can be moved into the stripping position in which they enter into circumferential grooves created in the gathering cylinder.
  • 6 designates a counting mechanism having electrical contacts which momentarily open or close after a predetermined number of counting steps.
  • FIGS. 1 and 2 the conveyors 7 serving to carry the sheets to the gathering cylinder are represented schematically.
  • these conveyors are disposed in tandem with crosscutters 8, to which material is fed in continuous sheet form by other conveyors which are not shown in the drawings, the said material being cut into sheets by crosscutter 8 and then passing over conveyor 7 to gathering cylinder 2.
  • the gathering cylinder is equipped with sling bands 9, which are guided around guide rollers 10, and a driving roll 11.
  • the power for the operation of driving roll 11 is in this case derived from the gathering cylinder 2, an intermediate gear 12 meshing with the peripheral gear 2a of cylinder 2, and powering the driving roll 11 through an infinitely variable speed change transmission 13, which may consist of truncated 4 cones 13a, 13b and a belt 13c adjusted by arm 13d (FIG. 4).
  • the speed change transmission 13 is connected in the embodiments in FIGS. 1 and 2, as indicated by a broken line, with a photoelectric sensing device 14, which serves to determine the sheet displacement on the gathering cylinder and serves for the automatic control of transmission 13 through a servo-motor not shown in the drawing; when the slippage between the sling bands 9 and gathering cylinder 2 varies, the transmission ratio of transmission 13 is varied accordingly.
  • the photoelectric cell 14 can be directed onto said area of the periphery so as to adjust the transmission in the one or other direction when the sheet ends are displaced due to shingling. This is also a well known arrangement which is conventional whenever sheets are kept in alignment or register by means of photoelectric devices, and need, therefore, not to be set forth in more detail.
  • the deflector-stripper 3 is connected through a pull rod 15 to a lever 16 which is attached :at pivot point 17 to a stationary part of the apparatus.
  • a cam follower 18 At the end of lever 16 next to the gathering cylinder there is mounted a cam follower 18 which cooperates with a cam 19 rotating synchronously with the gathering cylinder.
  • the end of lever 16 opposite cam follower 18 is under the influence of a compression spring 20, and, in the embodiment in FIG. 1, it is furthermore attached to the armature 21 of a holding electromagnet 22.
  • Electromagnet 22 is connected through switch 23 with the counting mechanism 6, which in turn is connected with a photoelectric system 24 for the registration of the sheets carried to the gathering cylinder.
  • the impulses emitted by the photoelectric sensing system are fed to counting mechanism 6 through a delay system installed, if desired, in the counting mechanism, in such a manner that the de-energizing of electromagnet 22 or the contact between cam follower 18 and cam 19 takes place precisely within the time in which cam lob 25 is presented to cam follower 18, cam lobe 25 being disposed in relation to gathering cylinder 1 in such a manner that, when the cam follower rolls off of the cam lobe, the portion of the periphery of the cylinder that is not covered by the sheets is presented to the deflector stripper.
  • cam follower 18 After the shifting of deflector-stripper lever 3 into the stripping position, cam follower 18 remains in contact with the cam for almost one full revolution of the latter, and during this time the deflector-stripper remains in the stripping position.
  • Switch 23 needs to open for only a very brief time to produce this effect, because once cam follower 18 contacts the cam, electromagnet 22 is incapable by itself of overcoming the effect of spring 20, on account of the slight pulling force it has over the great air gap created between the magnet and the armature. Not until cam follower 18 has run back up onto cam lobe 25 can lever 16 swing back and, by means of pull rod 15, return deflector-stripper 3 to the deflecting positon.
  • cam disks 19 having lobes 25 disposed ofiset from one another which can be rotated against one another on shaft 1 and can be locked in the position desired (FIG. 5).
  • the collected packs of sheets are fed 'by a conveyor arranged parallel to the deflector-stripper onto a conventional stacker platform which can be lowered as the stacking progresses and may be vibrated to assist the registering of the sheets.
  • the present invention is not concerned with details of the stacker, which may be of conventional construction and is, therefore, not shown in the drawings.
  • a solenoid device 26 which is equipped with a pawl 27 which is held inthe engaged position by the effect of a spring 28.
  • solenoid 26 is not energized, i.e., switch 23, which is in series with it, is open, when the deflector-stripper is in the deflecting position.
  • counting mechanism 6 can be connected, if the crosscutters and gathering cylinders are coupled directly together, with an impulse generator which causes one count to be registered in the counting mechanism upon each revolution of the cylinder.
  • This impulse generator is represented schematically in FIG. 2 and is designated by the number 29. It can :be designed as an inductive transducer and can cooperate with an armature disposed adjustably on the periphery of the gathering cylinder, so that the impulses can be coordinated with the position of the gathering cylinder.
  • FIG. 3 an electrically operated system is shown in which, for the sake of simplicity, the conveyors and the sling bands and all other parts not necessary to the operation of the deflector-stripper 3 are omitted from the drawing.
  • a solid conductive metal ring 31 is placed on shaft 1 of the gathering cylinder, with an insulating ring 30* between them, the said metal ring being connected through a brush 32 to one pole of a voltage source 33.
  • Shaft 1 also bears insulating disks 34 and 36 which bear conductive segments 35 and 35a. Brushes slide on the circumferences of the insulating disks 34 and 36, the said brushes being connected by conductors 38 and 39 to a relay 37 and a switch 41, respectively.
  • Conductor 38 is connected through relay 37, which operates the deflector-stripper 3, and through a switch 40, which is controlled by the counting mechanism 40, to one pole of the voltage source 33.
  • Relay 37 does not respond upon each rotation of the gathering cylinder, but instead can respond only when switch 40, which is in series with it, is closed by the counting mechanism 6 when the desired number of sheets has been gathered on the gathering cylinder.
  • the counting mechanism is coupled with shaft 1 of the gathering cylinder, so that, after a certain number of revolutions of the gathering cylinder, depending on how it is set, it causes switch 40 to close, the impulse that closes it being so timed that it closes just when the brush associated with conductor 38 comes into contact with segment 35.
  • solenoid device 45 When relay 37 responds, it shifts the deflector-stripper into the stripping position, while simultaneously operating the catch and pawl mechanism 43, whose catch is formed by the prolongation 42 of the deflector-stripper operating rod, and whose pawl is created on the prolongation of the plunger of a solenoid device 45.
  • the winding of solenoid device 45 is connected at one end to the negative pole of voltage source 33 and at the other end to a working contact of switch 41, so that, when segment 35a is contacted by the brush to which conductor 39 is attached, and when switch 41 is closed, the circuit of the said winding is closed.
  • solenoid 45 When solenoid 45 is energized, it disengages the catch and pawl mechanism 43 against the elfect of spring 44, and thus causes deflector-stripper 3 to return to the deflecting position under the effect of compression spring 20.
  • switch 41 The purpose of switch 41 is to prevent solenoid 45 from being energized upon each revolution of the gathering cylinder, because it can be energized only when the deflector-stripper is in the stripping position, since only then is switch 41 closed.
  • the embodiment in FIG. 3 is suitable only for installation directly in tandem with a crosscutter, since the operation of the deflector-stripper is coordinated only with the rotation of the gathering cylinder.
  • Apparatus for gathering sheets into packs of a predetermined number of sheets and advancing them to stackers comprising a gathering cylinder having a periphery which is larger than the length of the sheets to be collected, means to feed the sheets onto the cylinder to form packs thereon covering part of the'cylinder periphery and leaving part thereof uncovered, sling bands cooperating with and partially encircling said cylinder, means to drive said sling bands, means to control the speed of said bands so as to compensate for slippage of said sheets and to ensure that said part of the cylinder periphery remains uncovered by sheets, a deflector-stripper adapted to operate in a raised or lowered position being positioned above the cylinder and adjacent to the outlet of said feed means, said deflector-stripper in the raised position adapted to deflect said sheets to a position 'between the sling bands and the cylinder, and in the lowered position to strip said packs from the cylinder, and means to control the deflector-stripper to position it in either the gathering
  • Apparatus as set forth in claim 1 wherein the means to drive the sling bands comprises a peripheral gear on the cylinder, a second gear meshing with said peripheral gear, an infinitely variable speed drive transmission connected to said second gear, and a drivng roll driven by said transmission.
  • Apparatus as set forth in claim 3 wherein the means for controlling the deflector-stripper comprises an impulse generator consisting of an inductive transducer which actuates the adjustable counting mechanism.
  • the means for moving the deflector-stripper to the stripping position comprises cam means revolving with the gathering cylinder and cooperating with a cam follower disposed at one 7 end of a lever which is mechanically connected to the deflector-stripper and is held by holding means against the efiect of a spring in a position in which it keeps the cam follower and the cam out of contact with one another, the counting mechanism releasing said holding means when the cam lobe is presented to the cam follower.
  • cam means comprises two cam discs having lobes disposed ottset from one another, said cam discs being rotatable against each other to adjust the total length of the lobes.
  • said adjustable control device comprises an electromagnet for moving the deflector-stripper into the stripping position, an electric circuit for actuating said electromagnet, and switch contacts in said circuit operated in coordination with the position of the gathering cylinder, said switch contacts being disposed in series with an additional contact of said first switching device operated by said counting mechanism.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Basic Packing Technique (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
US275654A 1962-04-27 1963-04-25 Sheet collecting mechanism Expired - Lifetime US3345923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE22787A DE1210315B (de) 1962-04-27 1962-04-27 Vorrichtung zum Sammeln von Bogen aus Papier od. dgl. und zum Weiterleiten der Bogenpakete

Publications (1)

Publication Number Publication Date
US3345923A true US3345923A (en) 1967-10-10

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ID=7070891

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Application Number Title Priority Date Filing Date
US275654A Expired - Lifetime US3345923A (en) 1962-04-27 1963-04-25 Sheet collecting mechanism

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US (1) US3345923A (de)
AT (1) AT254680B (de)
CH (1) CH426894A (de)
DE (1) DE1210315B (de)
GB (1) GB972407A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735516A (en) * 1992-05-27 1998-04-07 Mars Incorporated Apparatus for handling sheets
US6691995B2 (en) 2001-03-06 2004-02-17 Koenig & Bauer Aktiengesellschaft Conveying unit for flat objects
EP1972587A1 (de) * 2007-03-20 2008-09-24 Müller Martini Holding AG Einrichtung zum Sammeln von Druckprodukten auf einem Sammelzylinder

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611354A1 (de) * 1986-04-04 1987-10-08 Hobema Maschf Hermann Einrichtung zur bildung von stapeln aus mehreren flaechigen einzelerzeugnisssen aus papier, zellstoffwatte o. dgl.
US8757356B2 (en) * 2011-10-31 2014-06-24 Ncr Corporation Media depository
DE102012025609B4 (de) 2012-07-30 2020-04-16 Koenig & Bauer Ag Weiterverarbeitungs- und/oder Auslageabschnitt einer Druckmaschine zur Aufteilung eines Produktstromes einer Druckmaschine
DE102013109534A1 (de) * 2013-09-02 2015-03-05 Manroland Web Systems Gmbh Vorrichtung zur Druckweiterverarbeitung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1545916A (en) * 1921-05-13 1925-07-14 Charles B Maxson Feeding and stacking method and machine
US2278188A (en) * 1940-08-03 1942-03-31 Interchem Corp Method of and apparatus for delivering sheets
US2424093A (en) * 1944-02-11 1947-07-15 Boston Wire Stitcher Co Apparatus for stacking and transporting objects

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE678472C (de) * 1934-06-14 1939-07-15 August Koenig Dr Ing Querschneid- und Sammelvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1545916A (en) * 1921-05-13 1925-07-14 Charles B Maxson Feeding and stacking method and machine
US2278188A (en) * 1940-08-03 1942-03-31 Interchem Corp Method of and apparatus for delivering sheets
US2424093A (en) * 1944-02-11 1947-07-15 Boston Wire Stitcher Co Apparatus for stacking and transporting objects

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735516A (en) * 1992-05-27 1998-04-07 Mars Incorporated Apparatus for handling sheets
US6691995B2 (en) 2001-03-06 2004-02-17 Koenig & Bauer Aktiengesellschaft Conveying unit for flat objects
EP1972587A1 (de) * 2007-03-20 2008-09-24 Müller Martini Holding AG Einrichtung zum Sammeln von Druckprodukten auf einem Sammelzylinder
US20080230974A1 (en) * 2007-03-20 2008-09-25 Muller Martini Holding Ag Device for collecting printed products on a collecting cylinder
US7934712B2 (en) 2007-03-20 2011-05-03 Mueller Martini Holding Ag Device for collecting printed products on a collecting cylinder

Also Published As

Publication number Publication date
CH426894A (de) 1966-12-31
DE1210315B (de) 1966-02-03
AT254680B (de) 1967-06-12
GB972407A (en) 1964-10-14

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