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EP0394707A1 - Vorrichtung zum nacheinander Zuführen von Platten zu einer Verarbeitungsmaschine - Google Patents

Vorrichtung zum nacheinander Zuführen von Platten zu einer Verarbeitungsmaschine Download PDF

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Publication number
EP0394707A1
EP0394707A1 EP90106213A EP90106213A EP0394707A1 EP 0394707 A1 EP0394707 A1 EP 0394707A1 EP 90106213 A EP90106213 A EP 90106213A EP 90106213 A EP90106213 A EP 90106213A EP 0394707 A1 EP0394707 A1 EP 0394707A1
Authority
EP
European Patent Office
Prior art keywords
linear member
rollers
pulley
control
linear
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
EP90106213A
Other languages
English (en)
French (fr)
Other versions
EP0394707B1 (de
Inventor
Henri Gibert
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.)
Martin SA
Original Assignee
Martin SA
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 Martin SA filed Critical Martin SA
Publication of EP0394707A1 publication Critical patent/EP0394707A1/de
Application granted granted Critical
Publication of EP0394707B1 publication Critical patent/EP0394707B1/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
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/04—Endless-belt separators
    • B65H3/042—Endless-belt separators separating from the bottom 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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile

Definitions

  • the present invention relates to a device for sequential introduction of plates into a shaping machine when these plates must be introduced one by one by successive removal of the latter from below a stack placed in a store.
  • a shaping machine such as, for example, a printing and grooving machine or a cutter intended for the shaping of corrugated cardboard plates for the production of packaging, generally comprising tools printing, cutting and local crushing of the cardboard to form subsequent fold lines
  • the plates contained in a magazine are introduced successively, in phase with the rotation of the printing or cutting tools.
  • One of the introduction devices used in conventional machines consists in using, to synchronously drive sheets of corrugated cardboard, endless belts which intermittently rotate in one direction and brought against the bottom sheet of a stack by means of a lifting member acting against the upper end of the endless belt, the advance of the endless belts and the lifting member being actuated so that the sheet is driven in synchronism with a subsequent sheet processing machine.
  • continuous vacuum is used, which avoids slipping which is usually associated with the use of belts rotating continuously with the application of intermittent suction pressure.
  • This device is, on the other hand, associated with a mechanism making it possible to interrupt, once in two, the training of the leaves.
  • a third device constituting a variant of the methods and devices mentioned above, is described in detail in the European patent application published under No. 0183361.
  • the introductory members are constituted by rollers coated with a material with a high coefficient of friction which cooperate with a member for lifting the stack of sheets.
  • the rollers and the lifting member of the stack of sheets are placed in the enclosure constituted by a vacuum chamber.
  • the rollers are controlled so as to be driven in two directions of rotation, so as to release the stack of sheets from the front stop, intended to allow only one sheet to pass at a time between its lower edge and a surface defined by the plan of the introduction table, constituted by one of the upper walls of the vacuum chamber.
  • a drawback specific to the first of the devices mentioned above resides in the fact that the endless belt lifting member, constituted by an articulated shoe, performs an alternating vertical movement from bottom to top and from top to bottom.
  • the endless belts moving linearly in the direction of the front stop to ensure the introduction of a sheet there will necessarily be friction between their upper strands and the bearing faces of the lifting members, during the introduction of a sheet.
  • This friction causes, in the long run, the wear of the inner face of the belt which will, in this in this case, it is subjected to wear both on its external face, in contact with the sheets, and on its internal face intended to ensure the adhesion of the endless belt around the control and return pulleys.
  • the present invention aims to provide a simple and rational solution to overcome the aforementioned drawbacks and to provide the user with a means particularly suitable for the work of introducing corrugated cardboard plates into a shaping machine.
  • a device for introducing plates into a shaping machine, from a stack of plates arranged in a magazine located below a feeding table provided, in its front part, with a plate retaining stop placed downstream of two feed rollers, comprising a vacuum chamber, sequential transport means placed side by side and vertically movable and means for linearly and vertically driving said transport means sequential, characterized in that the sequential transport means are constituted by at least one linear member 13 passing around a deflection pulley 14 located in the vicinity of the retaining stop 22 and the feed rollers 23 and 24 and around a control pulley 18, said linear member 13 being attached to its two ends 16 and 17 by means of attachment to the control pulley 18 driven by an alternating rotary movement in one direction and in the other, the upper strand of the linear member 13, extending between the axis of the return pulley 14 and the axis of the control pulley 18, being supported by a series of rollers 12 having a discontinuous circumference, said rollers 12 being mounted on axes trans
  • the linear member consists of a rubberized belt, the free ends of which are fixed to a control pulley driven by an alternating rotation movement.
  • the vacuum chamber is advantageously formed by boxes placed on either side of the sequential transport means, said boxes being connected to a common vacuum source from which they can be isolated separately by shutter means constituted by a valve with drawers.
  • One of the advantages obtained thanks to this invention resides essentially in the fact that the replacement of the introduction members can be carried out without tedious disassembly of the introduction station, which reduces, to a significant extent, the time during which the machine is unable to produce.
  • Another advantage obtained using a device according to the invention consists in that, by the shape and the continuous rotary movement of the belt lifting members, the latter is no longer subject to wear untimely of its internal contact face, at the time of the insertion operation.
  • the device for sequential introduction of plates comprises a vacuum chamber 2 formed by several boxes 3 placed on either side of the linear introduction members 4 (see figures 4 and 5).
  • the vacuum chamber 2 is supported by transverse beams 5 and 6.
  • the sole 7 located at the front of the vacuum chamber 2 is fixed, by screws not shown, on the transverse beam 5 while the fixing lug 8 located at the rear of the vacuum chamber 2 is, in turn, screwed against a support 9 itself fixed with the screws 10 on the upper face of the transverse beam 6.
  • the vacuum chamber 2 comprises, in the area of the linear insertion members 4, a wall 11 intended, on the one hand, to mechanically link each of the boxes 3 together and, on the other hand, to provide a free space for the rollers with interrupted circumference 12.
  • the linear introduction members 4 comprise a linear member 13 which can be a rubberized belt or a linear strap which passes around a idler roller 14, mounted so as to be able to rotate freely on a transverse shaft 15 and attached to its two ends 16 and 17 on a control pulley 18 fixed, for example using a key, on a drive shaft 19.
  • the diameter of the control pulley 18 is chosen so that at least one sector of the 'linear member 13 is always in contact with the control pulley 18, during "active" and "non-active" rotations thereof.
  • the upper strand of the linear introduction member 13 passes over the series of interrupted circumference rollers 12 which are arranged so as to be able to rotate continuously in the direction indicated by the arrow 25.
  • the shape of the interrupted circumference rollers 12 is defined by two portions of a circle 20 and 21.
  • the radius of the portion of a circle 20 is less than the radius of the portion of a circle 21.
  • the connection between the two portions of a circle 20 and 21 is effected by tangents to the circle 20 forming an angle of 60 ° between them.
  • the radius of the portion of a circle 20 is chosen so that, when the roller 12 occupies the position shown in FIG. 1, there is no contact between its linear part and the inner face of the linear member of introduction 13.
  • the radius of the circle portion 21 is chosen, for its part, so that it can lift the upper strand of the linear introduction member 13 during the rotation of the roller 12 in the direction indicated by arrow 25.
  • the movement transmitted to the shaft 19 comes from a control shaft 26 animated by a reciprocating rotary movement indicated by the double arrow 27.
  • the transmission of this movement is carried out by means of a toothed wheel 28 mounted on the control shaft 26 and connected by means of a toothed chain or belt 29 to a toothed pinion 30 mounted on the shaft 19.
  • these members transmission lines have been shown in dashed lines and the relationships existing between the toothed wheel 28, the toothed pinion 30, the diameter of the control pulley, the rotation drive of the rollers 12 and the angular displacement of the control shaft 26, are chosen so that the linear displacement of the introduction member 13 corresponds substantially to the advance necessary to introduce a sheet, the front edge is in contact with the retaining stop 22, between the introduction rollers 23 and 24.
  • FIG. 2 schematically represents a second version of the transmission of the movement from the control shaft 26 to the shaft 19.
  • This version replaces the wheel assembly, toothed pinions and toothed chain, 28, 30 and 29 respectively by a train of gear 31 comprising a toothed wheel 32 mounted on the control shaft 26 and connected to the toothed pinion 33 fixed on the shaft 19 by means of an intermediate toothed wheel 34 mounted, so as to be able to rotate freely, on an axis 35
  • the linear introduction member 13 is shown in the position it occupies at the end of the "active" travel, that is to say when the fasteners 36 and 37 of the ends 16 and 17 of the introduction member 13 are in their upper position.
  • FIG. 3 is a view along A of FIG. 2.
  • Figure 4 is a partial plan view of Figure 1.
  • the right part of the introduction station which comprises between two side frames 40, of which only the right one has been shown here , the device for sequentially introducing plates 1.
  • the retaining stop 22 and the introducer rollers 23 and 24 we have deliberately omitted to show in this figure the retaining stop 22 and the introducer rollers 23 and 24.
  • the sequential introduction device 1 comprises a flat surface made up of plates 41 and 44 covering both the area located above the boxes 3 that the area located in front and behind the linear introduction members 13.
  • the plates 41, covering the area located in front and behind the introduction members 13, are simple smooth plates, as is the plate 44 placed in the vicinity of the lateral frame 40.
  • the plates 43 which cover the area located above the boxes 3 are, in turn, pierced with a multitude of orifices 45 intended to allow the action of the vacuum on the lower sheet to be introduced in machine.
  • the partial section along line 46 of FIG. 4 shows the way in which the rollers 12 are mounted on their respective shafts 47, so that the vacuum is confined in the boxes 3.
  • FIG. 5 is a sectional view along V ⁇ V of Figure 1 in which there is shown the left part of the sequential introduction device 1 with its other side frame 40.
  • the boxes 3 of the vacuum chamber 2 are interconnected at their lower part by conduits 50 opening into a collector 51 connected to a vacuum source which may be, for example, a turbine vacuum pump (not shown).
  • FIG. 5 also shows the relative position of the plates 43 and 44 with respect to the insertion members 13.
  • the introduction members 13 supported by the rollers 12 are situated substantially below the defined plane by the upper faces of the plates 43 and 44, when the protruding part of the rollers 12 is not in contact with the upper strand of the introduction members 13.
  • the protruding part of the rollers 12 will raise the introduction members 13 above the level of the plates 43 and 44 which, when set in motion, will cause the introduction of the bottom sheet of the stack of sheets to be worked.
  • FIG. 6 represents the kinematic chain of the control members of the sequential introduction device 1.
  • the main movement comes from a drive shaft (not shown) of the shaping machine and it is communicated to a rod-crank assembly 52 constituted by a toothed wheel 53 supported by a shaft 54.
  • a crank pin 55 arranged against one of the faces of the toothed wheel 53, engages in one of the ends of a lever 58.
  • the other end of the lever 58 comprises , in turn, a pin 62 on which is articulated the head of another lever 63 fixed, using a key and a clamping device 64, on the control shaft 26 driving the toothed wheel 32 which will transmit its movement to the control pulley 18, via the toothed pinion 33 and the intermediate wheel 34.
  • the rod-crank assembly 52 can advantageously be replaced, for example, by a control device with cams and levers.
  • the shaft 54 also supports a toothed wheel 65 meshing with a pinion 66 connected to another toothed wheel 67 which can drive, by means of a pinion 68 mounted so as to be able to be moved laterally on a shaft 69 and, by the fork 70, the double pinion 71 serving as an intermediary for controlling the rotation of each of the pinions 72 driving the shaft 47 of the rollers 12.
  • the assembly which we have just described constitutes in fact a gearbox having the ratios 1: 1 and 1: 2.
  • the pinion 68 meshes with the toothed wheel 53, which generates a rapid speed of rotation of the shafts 47 thus forcing the rollers 12 to rotate at the speed of one revolution per machine cycle.
  • the toothed pinions 66 and 68 must, of course, have the same number of teeth.
  • the ratio of 1 to 2 of the rotation control of the shafts 47 of the rollers 12 therefore indifferently allows one or two lifting of the introduction members 13 during a single "active" stroke thereof, which allows, in the in the case of processing large sheets, to introduce a sheet for two feeds of the feeders 13.
  • FIG. 9 represents such a provision.
  • Figure 7 is a section along VII ⁇ VII of Figure 6 schematically showing the lateral arrangement of the bodies of the kinematic chain. Due to the passage of the cutting line through the various pinions and wheels 53, 65, 66, 67, 68, 71 and 72, the meshing between the toothed wheel 53 and the pinion 68 does not appear in this figure because it occurs in a plane different from that of the section plane.
  • FIG. 8 schematically represents the sectional view of a box 3 provided in its lower part with a closure device 73 comprising a fixed grid 74 and a movable drawer 75.
  • the fixed grid 74 is provided with lights 76 and the drawer mobile 75 of orifices 77.
  • the mobile drawer 75 is connected to a pneumatic cylinder 78 which, when actuated, will open or close the openings 76 of the fixed grid 74, thus making it possible to use only the boxes located in the surface represented by the format of the sheets to be inserted.
  • Figure 9 is a schematic profile view of the side cheeks 90 supporting the axes 47 of the rollers 12 with discontinuous circumference.
  • the end of the eccentric pin 121 is equipped with a lever 122 held in place by screws 123.
  • the end the eccentric pin 120 is, for its part, fitted with another lever 124 fixed by the screws 125.
  • One end of the lever 122 is connected to the end of the lever 124 by means of a pull tab 126.
  • the other end of the lever 122 is connected to the rod 127 of a pneumatic piston 128.
  • the position shown in FIG. 9 shows the sequential introduction device 1 in operation, that is to say when the lateral cheeks 90 occupy a "high" position.
  • the out of service position has been shown in phantom in this figure.
  • FIG. 10 is a view of the means for fixing a linear member 13 to its control pulley 18.
  • the control pulley 18 has a recess 100 comprising a first face 101 and a second face 102.
  • the face 101 is provided with a cylindrical lug 103 (see FIG. 12).
  • This cylindrical lug 103 is crimped in the face 102. It could, of course, be screwed there.
  • the linear member 13 has at each of its ends an eyelet 104 respectively 105. These eyelets 104 and 105 engage on the lug 103 so that the two ends of the linear member 13 are superimposed at this location.
  • a first clamp 106 having a housing 107 and a thickness substantially less than the thickness represented by the two superimposed ends of the linear member 13, maintains these against the face 101 by means of the screws 108.
  • a second flange clamp 109 (see FIG. 11) holds the linear member against the face 102 of the recess 100.
  • This clamp 109 has a housing 110, and its thickness is substantially less than the thickness of the linear member 13.
  • the linear member 13 is thus made integral with its control pulley 18. It is then necessary to give it a certain tension so that it can work correctly.
  • provision is made to use a lever 111 (shown in broken lines in FIG. 10). This lever 111 comprises two cylindrical tenons 112 and 113.
  • the cylindrical tenon 112 engages in a bore 114 machined through the control pulley 18 while the tenon 113 is brought into contact with the linear member 13.
  • the linear member 13 having been secured on the control pulley 18 using the flange 106, it will be easy, by actuating the lever 111 clockwise, to give tension to the linear member 13 and, while maintaining this tension, to then tighten the second clamp 109 on the face 102 of the recess 100 by means screws 115.
  • This type of fixing of the linear member 13 makes it easy to replace it, if necessary, by acting as follows: - Firstly, the flanges 106 and 109 are dismantled and the ends of the linear member 13 are removed from the cylindrical lug 103.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Making Paper Articles (AREA)
  • Reciprocating Conveyors (AREA)
  • Vending Machines For Individual Products (AREA)
  • Press Drives And Press Lines (AREA)
  • Laminated Bodies (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Drilling And Boring (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
EP90106213A 1989-04-27 1990-03-31 Vorrichtung zum nacheinander Zuführen von Platten zu einer Verarbeitungsmaschine Expired - Lifetime EP0394707B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8905947A FR2646414B1 (fr) 1989-04-27 1989-04-27 Dispositif d'introduction sequentielle de plaques dans une machine de faconnage
FR8905947 1989-04-27

Publications (2)

Publication Number Publication Date
EP0394707A1 true EP0394707A1 (de) 1990-10-31
EP0394707B1 EP0394707B1 (de) 1993-07-14

Family

ID=9381424

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106213A Expired - Lifetime EP0394707B1 (de) 1989-04-27 1990-03-31 Vorrichtung zum nacheinander Zuführen von Platten zu einer Verarbeitungsmaschine

Country Status (10)

Country Link
US (1) US5026040A (de)
EP (1) EP0394707B1 (de)
JP (1) JPH0784265B2 (de)
AT (1) ATE91481T1 (de)
BR (1) BR9001937A (de)
CA (1) CA2015552C (de)
DE (1) DE69002188T2 (de)
DK (1) DK0394707T3 (de)
ES (1) ES2043161T3 (de)
FR (1) FR2646414B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708579B1 (fr) * 1993-08-05 1995-10-13 Martin Sa Procédé pour introduire une matière en plaque dans une machine de transformation de cette matière en plaque et dispositif pour la mise en Óoeuvre de ce procédé.
US5934662A (en) * 1997-10-14 1999-08-10 Xerox Corporation Bottom sheet separator-feeder with sheet stack levitation
JP4000429B2 (ja) * 1997-12-25 2007-10-31 株式会社タナベインターナショナル ブランクシートの供給装置
US7819790B2 (en) * 2004-02-20 2010-10-26 Dixie Consumer Products Llc Apparatus for making paperboard pressware with controlled blank feed
US7419462B1 (en) * 2005-06-13 2008-09-02 Dixie Consumer Products Llc Pressware die set with pneumatic blank feed
US7635124B2 (en) * 2005-12-28 2009-12-22 Sun Automation, Inc. Feeder with adjustable time cycle and method
DE102012013517A1 (de) * 2012-07-06 2014-01-09 Giesecke & Devrient Gmbh Vorrichtung und Verfahren zum Vereinzeln von Wertdokumenten, sowie Wertdokumentbearbeitungssystem
ES2548956R1 (es) * 2014-04-21 2015-10-29 Boix Maquinaria, S.L. Sistema para mantener plana una plancha de cartón durante su arrastre desde un módulo cargador hasta un módulo conformador de cajas
US9162834B1 (en) * 2014-11-12 2015-10-20 Jun-Yen Lee Front-edge paper feeding device
ES1237244Y (es) * 2019-09-16 2020-02-04 Comercial Industrial Maqu Carton Ondulado S L Conjunto tanqueta de un conjunto introductor para el suministro de elementos laminares en continuo y conjunto introductor
CN111003547B (zh) * 2019-12-16 2024-05-24 广州精陶机电设备有限公司 一种负压传送方法及系统
CN111993484B (zh) * 2020-09-16 2022-02-08 健尔康医疗科技股份有限公司 一种无纺布压痕装置

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE149545C (de) *
US3926427A (en) * 1974-02-14 1975-12-16 Stephen L Moksnes Apparatus for separating sheets from a stack
EP0081623A1 (de) * 1981-12-16 1983-06-22 The Ward Machinery Company Zuführapparat für Pappbogen
EP0183361A2 (de) * 1984-11-23 1986-06-04 Prime Technology Inc. Vorrichtung und Verfahren zum Zuführen von Gegenständen wie Blätter oder Platten

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US3193282A (en) * 1963-03-13 1965-07-06 Koppers Co Inc Mechanism for feeding cardboard or like blanks
US3754752A (en) * 1971-12-22 1973-08-28 Kappers Co Inc Method of and apparatus for feeding blanks
US3904190A (en) * 1974-03-15 1975-09-09 Koppers Co Inc Apparatus for feeding paperboard blanks
JPS5440825B2 (de) * 1974-05-04 1979-12-05
GB1580598A (en) * 1977-06-02 1980-12-03 Martin S Devices for feeding sheet material
US4168829A (en) * 1977-06-20 1979-09-25 Eastman Kodak Company Control valve for vacuum sheet feeding apparatus
JPS54115870A (en) * 1978-02-27 1979-09-08 Masaharu Matsuo Belt paper feeder
US4614335A (en) * 1980-04-28 1986-09-30 Wm. C. Staley Machinery Corporation Intermittently protruding feeder for paperboard blanks
US4681311A (en) * 1983-11-09 1987-07-21 Wm. C. Staley Machinery Corporation Intermittently protruding feeder for paperboard blanks
US4896872A (en) * 1980-04-28 1990-01-30 Wm. C. Staley Machinery Corporation Intermittently protruding feeder for paperboard blanks
US4828244A (en) * 1980-04-28 1989-05-09 Wm. C. Staley Machinery Corporation Intermittently protruding feeder for paperboard blanks
US4889331A (en) * 1984-11-23 1989-12-26 Prime Technology, Inc. Rotary-type feeder machines and methods

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE149545C (de) *
US3926427A (en) * 1974-02-14 1975-12-16 Stephen L Moksnes Apparatus for separating sheets from a stack
EP0081623A1 (de) * 1981-12-16 1983-06-22 The Ward Machinery Company Zuführapparat für Pappbogen
EP0183361A2 (de) * 1984-11-23 1986-06-04 Prime Technology Inc. Vorrichtung und Verfahren zum Zuführen von Gegenständen wie Blätter oder Platten

Also Published As

Publication number Publication date
JPH02305731A (ja) 1990-12-19
EP0394707B1 (de) 1993-07-14
ES2043161T3 (es) 1993-12-16
FR2646414B1 (fr) 1991-07-12
CA2015552A1 (en) 1990-10-27
JPH0784265B2 (ja) 1995-09-13
BR9001937A (pt) 1991-07-30
US5026040A (en) 1991-06-25
CA2015552C (en) 1994-02-22
DE69002188D1 (de) 1993-08-19
FR2646414A1 (fr) 1990-11-02
ATE91481T1 (de) 1993-07-15
DE69002188T2 (de) 1993-11-04
DK0394707T3 (da) 1993-10-25

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