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EP3414198B1 - Device for gripping insert sheets, loading device, station for receiving installations and machine for treating sheet-shaped elements - Google Patents

Device for gripping insert sheets, loading device, station for receiving installations and machine for treating sheet-shaped elements Download PDF

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Publication number
EP3414198B1
EP3414198B1 EP17703029.3A EP17703029A EP3414198B1 EP 3414198 B1 EP3414198 B1 EP 3414198B1 EP 17703029 A EP17703029 A EP 17703029A EP 3414198 B1 EP3414198 B1 EP 3414198B1
Authority
EP
European Patent Office
Prior art keywords
pick
arm
sheet
insert
suction
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.)
Active
Application number
EP17703029.3A
Other languages
German (de)
French (fr)
Other versions
EP3414198A1 (en
Inventor
Patrice Chatry
Ludovic Cuennet
Maude STEINER
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.)
Bobst Mex SA
Original Assignee
Bobst Mex 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 Bobst Mex SA filed Critical Bobst Mex SA
Publication of EP3414198A1 publication Critical patent/EP3414198A1/en
Application granted granted Critical
Publication of EP3414198B1 publication Critical patent/EP3414198B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0833—Suction grippers separating from the top of pile and acting on the front part of the articles relatively to the final separating direction
    • 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
    • B65H3/0808—Suction grippers
    • B65H3/0883—Construction of suction grippers or their holding devices
    • 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
    • B65H31/32—Auxiliary devices for receiving articles during removal of a completed 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
    • 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
    • B65H2301/426—Forming batches
    • B65H2301/4263—Feeding end plate or end sheet before formation or after completion of a 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
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/30—Supports; Subassemblies; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/30—Other features of supports for sheets
    • B65H2405/32—Supports for sheets partially insertable - extractable, e.g. upon sliding movement, drawer
    • B65H2405/323—Cantilever finger member, e.g. reciprocating in parallel to plane of handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/34—Suction grippers
    • B65H2406/341—Suction grippers being oscillated in arcuate paths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/34—Suction grippers
    • B65H2406/342—Suction grippers being reciprocated in a rectilinear path
    • 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
    • B65H2701/1764—Cut-out, single-layer, e.g. flat blanks for boxes
    • 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
    • B65H2701/18—Form of handled article or web
    • B65H2701/182—Piled package
    • B65H2701/1826—Arrangement of sheets
    • B65H2701/18264—Pile of alternate articles of different properties, e.g. pile of working sheets with intermediate sheet between each working sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/42—Die-cutting

Definitions

  • the present invention relates to a device for entering insert sheets for inserting between stacks of poses in a reception area of a station for receiving poses.
  • the present invention also relates to a device for loading sheet inserts, a station for receiving poses and a machine for processing sheet-shaped elements comprising said device for entering sheet inserts.
  • the separation of the poses consists, after shaping and complete ejection of the waste, to break the attachment points between the poses of a sheet by means of a male upper tool and a female lower tool mounted vertically one above the other in the leaf receiving area.
  • the upper tool consists of pushing elements slightly smaller than the perimeter of the poses.
  • the lower tool consists of a grid whose mesh shape generally corresponds to the perimeter of the poses. The poses fall through these meshes and stack in vertical stacks in the reception area.
  • Inserting involves placing an insert sheet, such as a full sheet, between stacks of poses. So that this inserting can be carried out without requiring a concomitant shutdown of the production unit, a device commonly known as a non-stop reception grid is used.
  • an insert sheet is grabbed from a stack of insert sheets arranged near the reception area.
  • the insert sheet is then dropped onto the non-stop pose reception grid.
  • the non-stop receiving grid carrying the insert sheet then moves under the lower blanking tool.
  • the non-stop receiving grid returns over the stack of insert sheets to receive a new sheet. Leaving the reception area, the grid crosses the teeth of a comb which has pivoted into the retaining position to retain the insert sheet and thus the poses stacked on this insert sheet, in the reception area.
  • the non-stop reception grid thus allows the deposit of an insert sheet between the stacks of poses and the support of the poses during the evacuation of the stacks of poses without stopping production.
  • a suction cup device Typing the insert sheet and then depositing it on the non-stop receiving grid is generally carried out by means of a suction cup device.
  • An example of a known suction cup device comprises a suction cup bar which can pivot between a low position in which the suction cups come to grip the edge of an insert sheet and a high position to lift the sheet and then drop it on the non-stop receiving grid.
  • This device has the advantage of being compact, in particular, the size of the suction cup bar in the high position is compatible with the residual space located under the evacuation conveyor of the evacuation station, itself located above the insert sheet loading system.
  • the input area for insert sheets shifts from the edge of the sheet with the height of the stack of sheets lowering due to the mowing movement of the suction cup bar.
  • the positioning of the insert sheet can then become imprecise.
  • the insert sheet can be offset on the non-stop receiving grid, then offset between the poses of the stack. The correct positioning of the insert sheet between the stacks of poses is no longer guaranteed.
  • the document DE 195 16 023 A1 describes an inset device which lifts an insert sheet on a stack using a pivoting arm fitted with a suction cup and then deposits it on an inset grid when it leaves the poses reception area .
  • the suction cup device is then moved aside in order to allow the grid to rise, then to be inserted in the zone for receiving the poses.
  • the grid then lowers at a speed that corresponds to the rate of production of the poses. When the grid reaches a low position, it leaves the zone for receiving the blanks to receive a new insert sheet.
  • the insert sheet remains in the poses reception zone thanks to a vertical grid which retains it.
  • the document does not specify how the insert sheet is fixed and detached from the insert grid, nor how its position on the grid is adjusted.
  • One of the aims of the present invention is to provide an improved insert sheet entry device enabling the entry of the insert sheet in the same entry area, with a reduced footprint, whatever the height of the stack of sheets. insert.
  • the subject of the present invention is a device for inputting insert sheets for a device for loading inset sheets from a station for receiving poses, the input device comprising a suction element configured to capture an insert sheet, characterized in that the gripping device comprises a pivoting axis and at least one telescopic arm comprising a proximal arm, one end of which is fixed to the pivoting axis and a distal arm, movable relative to the proximal arm and one end of which is articulated in pivoting with the suction element to move the suction element between a high position and a low position according to a vertical movement of the suction element.
  • the combination of the pivoting movement of the telescopic arms and their lengthening / shortening allows vertical movement of the suction element between the high and low positions.
  • the input area can thus be carried out always at the same location on the insert sheet, making it possible to ensure that the insert sheet is correctly positioned for the inserting operation.
  • This device for gripping insert sheets therefore takes up little space while allowing the suction element to be lowered sufficiently low into the housing of the container to grip an insert sheet at the bottom of the container.
  • Such a space-saving arrangement is simpler and more economical to produce than, for example, providing a vertically movable container depending on the height of the stack contained.
  • the invention also relates to a device for loading insert sheets, characterized in that it comprises a device for entering insert sheets as defined above.
  • the subject of the invention is also a station for receiving the poses of a machine for processing sheet-shaped elements, characterized in that it comprises a device for loading inset sheets as defined above.
  • the invention also relates to a machine for processing elements in the form of sheets, characterized in that it comprises a station for receiving poses as defined above.
  • the transverse direction T is the direction perpendicular to the longitudinal direction of movement D of a sheet, as illustrated by the arrow D on the figures 1 and 2 .
  • the horizontal plane corresponds to the (L, T) plane.
  • upstream and downstream are defined with reference to the longitudinal direction of movement D.
  • the sheets move from upstream to downstream, generally following the main longitudinal axis of the machine, in a movement clocked by periodic stops.
  • flat elements and “sheets” will be considered equivalent, and will relate to elements composed of corrugated cardboard as well as flat cardboard, paper or any other material commonly used in the packaging industry. It is understood that throughout this text, the terms “leaf” or “leaf element” or “element in sheet form “means very generally any print medium in the form of sheets such as, for example, sheets of cardboard, paper, plastic material, etc.
  • the figure 1 shows an example of processing machine 1 for processing sheets.
  • This processing machine 1 is conventionally composed of several work stations which are juxtaposed but interdependent one by one to form a unitary assembly. There is thus an introduction station 100, a margin table 200, a processing station 300 for cutting the sheets, such as comprising a plate press 301, a waste ejection station 400, a station for receiving the poses 500 where the transformed sheets are repackaged in a pile and the cut sheet waste is disposed of.
  • each sheet takes place in the transformation station 300, for example between a fixed plate and a lower movable plate of the press 301 for cutting the sheets according to a matrix corresponding to the developed shape which is wishes to obtain, for example in order to obtain a plurality of boxes of a given shape.
  • the movable stage rises and falls successively once during each machine cycle.
  • a transport device 70 is also provided for individually moving each sheet from the output of the margin table 200 to the station receiving station 500, passing through the transformer station 300 by press.
  • the transport device 70 comprises a plurality of transverse bars provided with grippers, commonly called gripper bars 75 which each come in their turn to grab a sheet at its front edge, before drawing it successively in the various stations of the stations 300, 400, 500 of machine 1.
  • the ends of the clamp bars 75 are each connected respectively to a side chain forming a loop, commonly called chain train 80.
  • Chain train 80 Two chain trains 80 are thus arranged laterally on each side of the clamp bars 75.
  • the set of gripper bars 75 will start from a stopped position, accelerate, reach a maximum speed decelerate, then stop, thus describing a cycle corresponding to the movement of a sheet from one workstation to the next workstation.
  • the chain trains 80 move and stop periodically so that, during each movement, all the gripper bars 75 engaged with a sheet are passed from one station to the adjacent downstream work station. Each station performs its work in synchronism with this so-called cycle commonly machine cycle.
  • the workstations are in the initial position to start a new job at the start of each machine cycle.
  • the number and nature of the processing stations in a processing machine 1 can vary depending on the nature and the complexity of the operations to be performed on the sheets. In the context of the invention, the concept of processing machine thus covers a very large number of embodiments due to the modular structure of these assemblies. Depending on the number, nature and arrangement of the workstations used, it is indeed possible to obtain a multitude of different processing machines. It is also important to underline that there are other types of work stations than those mentioned, such as embossing, upsetting stations or such as stations for loading stripes for stamping for stamping machine or foil stamping machine. hot foil stamping in which between the platens of a press, patterns are applied to each sheet, from a film made from one or more stamping bands. Finally, it is understood that the same processing machine may very well be equipped with several stations of the same type.
  • the attachment points between the poses of a sheet are broken by means of a male upper tool and a female lower tool mounted vertically one above the other in a receiving zone 2 shown in the figure 2 .
  • the upper tool consists of pushing elements slightly smaller than the perimeter of the poses.
  • the lower tool 3 is formed of a grid, the mesh shape of which generally corresponds to the periphery of the poses.
  • the lower tool 3 comprises longitudinal and transverse bars forming a grid with square meshes. The poses fall through the meshes of this grid and stack in vertical stacks in the reception zone 2 on a reception pallet 4 carried by a frame 501 of the station 500, vertically movable.
  • the poses reception station 500 includes a device 10 for loading inset sheets, fixed to the frame of the machine 1.
  • Insetting consists in placing an inset sheet, such as a full sheet, between stacks of poses in the reception area 2.
  • the loading device 10 comprises a tray 11 for reserving insert sheets, a non-stop reception grid 12, a device 13 for gripping insert sheets and a pivoting retaining comb 14.
  • the tray 11 includes a housing 9 intended to receive a stack 8 of insert sheets.
  • the tank 11 is movable in translation in the transverse direction T so that it can be reloaded by an operator through a window of the frame 16 of the loading device 10, from one side of the loading device 10.
  • the container 11 can be mounted on two transverse slides 15 and include a handle, such as a drawer.
  • the non-stop reception grid 12 is movable in translation in the longitudinal direction of movement of the sheets D between a retracted position above the tray 11 to receive an insert sheet ( figure 3 ) and an extended position for inserting the insert sheet into the receiving area 2 ( figure 2 ).
  • the non-stop reception grid 12 comprises at least one crosspiece carrying a plurality of longitudinal bars.
  • the ends of the cross member are for example provided with rotating rollers, cooperating with longitudinal slides 17 carried by the frame 16.
  • the drive in translation of the receiving grid 12 is provided by two chains 18 driven by a motor (not visible) , controlled by a control unit 7 of the processing machine 1, to program an insert when the stack of poses reaches the desired height.
  • the retaining comb 14 has teeth regularly spaced in the transverse direction.
  • the comb 14 is pivotally mounted around a transverse axis interposed between the tray 11 and the reception area 2 of the poses.
  • the comb 14 is pivotable between a retaining position in which the teeth of the comb 14 pass between the longitudinal bars of the non-stop receiving grid 12 and a released position in which the teeth of the comb are retracted.
  • the input device 13 for insert sheets is arranged above the non-stop reception grid 12 when the latter is in the retracted position.
  • the gripping device 13 is configured to lift an insert sheet in the insert sheet reserve tray 11 and to deposit the raised insert sheet on the non-stop receiving grid 12 when the latter moves into position retracted above bin 11.
  • the input device 13 for inserting sheets comprises a suction element 20 configured to grip an insert sheet and comprises a support 21 intended to be mounted on the frame 16 of the loading device 10, for carrying and moving the suction element 20 towards or away from the stack 8 of insert sheets.
  • the support 21 can be mounted in longitudinal sliding on the frame 16 to adapt the longitudinal positioning of the entry area to the format of the insert sheets.
  • the support 21 comprises a pivoting axis 30 and at least one telescopic arm 33.
  • the telescopic arm 33 comprises a proximal arm 33a, one end of which is fixed to the pivoting axis 30 and a distal arm 33b, movable relative to the proximal arm 33a in the main direction of the proximal arm 33a.
  • One end of the distal arm 33b is pivotally articulated with the suction element 20 to move the suction element 20 between a high position ( figure 6a ) and a low position ( figure 6b ).
  • the rotation of the pivoting axis 30 causes the telescopic arms 33 to be lengthened or shortened.
  • the combination of the pivoting movement of the telescopic arms 33 and their lengthening / shortening makes it possible to effect a vertical movement of the suction element 20 between the high and low positions.
  • the telescopic arm 33 can be in a position close to the horizontal in the high position ( figures 5 and 6a ), that is to say that the telescopic arm 33 is arranged horizontally in the high position with a possible inclination relative to the horizontal of less than +/- 5 °, which limits the size of the device. grip 13 in the high position.
  • Such an arrangement has a reduced bulk and is simple and economical to produce.
  • the suction element 20 is connected to a vacuum source, such as a vacuum pump or a Venturi device, for example by means of hoses carried on the one hand, by a hose holder 19 in the shape of a "U". »Of the support 21 and on the other hand, by a case 25 of the support 21.
  • the case 25 is for example fixed to the pivoting axis 30.
  • the hoses make it possible to adapt the length of the pipes to the high or low position of the suction element 20.
  • the hose holder 19 facilitates the guidance of the hoses, in particular when the support 21 slides on the frame 16.
  • the housing 25 makes it possible to accommodate an excess of length of the hoses to allow their extension when the gripping device 13 is in the low position.
  • the case 25 is for example arranged in the center of the pivoting axis 30.
  • the vacuum source is controlled by the control unit 7 to establish a low suction pressure in the suction element 20 or to stop the suction.
  • the suction element 20 includes one or a plurality of suction heads 23, such as suction cups.
  • the suction cups have a flexible cap which can be maintained by air pressure on the surface of the insert sheet.
  • the suction heads 23 can be pivotally mounted about a transverse axis so that the gravity and / or the suction force makes it possible to correctly orient the suction heads 23 flat against the insert sheet.
  • the suction element 20 comprises a suction bar comprising a transverse bar 22, perpendicular to the longitudinal direction of movement of the sheets D.
  • the suction element 20 comprises a suction bar provided with five suction heads 23 arranged symmetrically and pivotally mounted in the transverse bar 22.
  • the support 21 comprises for example two telescopic arms 33, the respective ends of which are pivotally articulated with a respective end of the suction bar, which gives better rigidity to the system and facilitates the alignment of the suction heads 23.
  • the suction element 20 comprises for example a cylindrical pin 24 at each end cooperating with a complementary orifice formed in the end of the distal arm 33b.
  • the telescopic arms 33, the pivoting axis 30 and the suction bar 20 form a substantially horizontal frame in the high position ( figure 5 ).
  • One of the arms among the distal arm 33b and the proximal arm 33a has at least one oblong hole 34 with linear guide extending in the main direction of the proximal arm 33a, such as a groove.
  • the oblong hole 34 cooperates with at least one pin 35 carried by the other arm, to modify the length of the telescopic arm 33, that is to say lengthen or shorten the length of the distal arm 33b relative to the proximal arm 33a.
  • the proximal arm 33a comprises for example two aligned oblong holes 34 cooperating with a respective pin 35 of the distal arm 33b.
  • the length of the oblong holes 34 is for example between 30 and 50mm, such as of the order of 40mm.
  • the distal arm 33b is movable in sliding with respect to the proximal arm 33a by means of a rail carried by the proximal arm 33a or by the arm distal 33b, the other arm carrying a complementary rib.
  • the distal arm 33b can be moved into the proximal arm 33a, the distal arm 33b and the proximal arm 33a having, for example, complementary cylindrical shapes.
  • the support 21 may further comprise at least one control element 36 for the elongation of the distal arm 33b as a function of the pivoting angle of the pivoting axis 30, configured to cooperate with the distal arm 33b of the telescopic arm 33.
  • the control element 36 comprises for example a linear or curved guide.
  • the control element 36 comprises for example a cam roller and a cam, one being carried by the distal arm 33b, the other being fixed to the transverse beam 38 (not shown).
  • the cam roller is biased against the cam, the cam surface defining the elongation of the distal arm 33b as a function of the pivot angle of the pivot axis 30.
  • control element 36 has an inclined groove 39, which is particularly simple to produce in order to obtain the vertical movement of the suction element 20.
  • the groove 39 extends along a straight line forming an angle, for example understood between 25 ° and 55 ° with the vertical.
  • the inclined groove 39 is formed in a plate 37, fixed to the transverse beam 38 of the support 21.
  • the inclined groove 39 cooperates with a protuberance 40 carried by the end of the distal arm 33b.
  • the positioning of the distal arm 33b in a first position 39a of the groove 39 corresponds to a minimum elongation of the telescopic arm 33 in the high position.
  • the positioning of the distal arm 33b in a second position 39b of the groove 39 corresponds to a maximum elongation of the telescopic arm 33 in the low position, after the telescopic arm 33 has pivoted by a maximum predetermined angle ⁇ between the first and the second position .
  • the hypotenuse of a right triangle T, one of the catheters of which, the longest b, corresponds to the elongation a of the telescopic arm 33 over said predetermined maximum angle ⁇ fits into said groove 39.
  • Each proximal arm 33a is for example formed of a double wall sandwiching a distal arm 33b, for example by covering the distal arm 33b approximately on its two thirds in the high position ( figure 6a ).
  • Oblong holes 34 are formed on each wall of the double wall in parallel and cooperate with pins 35 arranged on either side of the distal arm 33b.
  • the plates 37 of the control elements 36 of the telescopic arms 33 are for example interposed between the walls of the double wall of the proximal arms 33a, upstream of the distal arms 33b.
  • the gripping device 13 may comprise at least one actuator 41, such as a jack, such as a pneumatic jack, configured to drive the pivoting axis 30 in pivoting ( figure 5 ).
  • the actuator 41 is for example configured to stop automatically under the effect of a counter-force.
  • the actuator 41 which stops the drive in rotation.
  • the stroke of the actuator 41 can thus be modulated as a function of the height of the stack 8 of inset sheets.
  • the gripping device may comprise a lever 42, the actuator 41 being connected to a first end of the lever 42, a second end of which is fixed to the pivoting axis 30.
  • the lever 42 is for example connected to one end of the axis pivoting 30 located on the outside of the side cheek 32 on which the actuator 41 can be fixed. Actuation of the cylinder rotates the lever 42, driving the pivoting axis 30 in rotation and consecutively, the elongation or shortening of the distal arms 33b.
  • the pivoting axis 30 pivots for example in bearings 31 fixed to the lateral cheeks 32 of the support 21.
  • the gripping device 13 comprises a first and a second pivoting axes aligned transversely and cooperating with a respective fixed bearing 31 on a respective side cheek 32 (not shown).
  • the gripping device 13 comprises two actuators 41, configured to drive a respective pivoting axis.
  • the rotary drive of the pivoting axis 30 (clockwise on the Figures 6a, 6b ) translates the pins 35 of the distal arms 33b into the oblong holes 34 of the proximal arms 33a and translates the protuberance 40 into the inclined groove 39 of the control element 36, lengthening the telescopic arms 33.
  • This rotation-elongation combination of telescopic arm 33 moves the suction element 20 vertically towards the stack 8 of insert sheets in the housing 9 of the tray 11 in the low position ( figure 6b ).
  • the suction element 20 then comes into contact with the edge of the insert sheet at the height where it is in the housing 9.
  • the gripping area can thus be carried out always at the same place on the insert sheet regardless of the height of the stack 8 of insert sheets.
  • the suction force of the suction element 20 and / or gravity correctly positions the suction element 20 to grip a flat insert sheet.
  • the actuator 41 automatically stops the pivoting drive of the pivoting axis 30 under the effect of this counter-force.
  • the actuator 41 is controlled by the control unit 7 to drive the pivoting axis 30 in the opposite direction, which has the effect of shortening the telescopic arms 33 and lifting the sheet d insert in the high position by a vertical movement of the suction element ( figure 6a ).
  • the insert sheet can then be dropped on the non-stop poses reception grid 12 on its return from the reception zone 2 in the retracted position ( figure 3 ).
  • This input device 13 for insert sheets therefore takes up little space, even in the high position, which makes it possible to arrange the input device 13 under the discharge conveyor of the machine 1.
  • the input device 13 allows in addition to lowering the suction element 20 sufficiently low in the housing 9 of the container 11 to be able to grasp an insert sheet at the bottom of the container 11.
  • the non-stop reception grid 12 carrying the insert sheet then moves under the lower tool 3 for separating the blanks to deposit the insert sheet.
  • the non-stop receiving grid 12 then returns to the top of the stack of insert sheets to receive a new sheet. Leaving the reception zone 2, the non-stop reception grid 12 crosses the teeth of the retaining comb 14 which has pivoted into the retaining position ( figure 2 ) to retain the insert sheet and therefore, the poses stacked on this insert sheet.
  • the non-stop reception grid 12 thus makes it possible to deposit an insert sheet between the stacks of poses and can also make it possible to support the poses during the evacuation of the receiving pallet 4 carrying the stacks of poses and the insertion of a new empty receiving pallet 4 without stopping production.
  • the invention is not limited to a device 10 for loading inset sheets comprising a non-stop reception grid 12 adapted to ensure the inserting operations but can also be applied to a loading device 10 ' provided on the one hand, with a non-stop reception grid for the poses 50 and on the other hand, with a mobile inserter 51.
  • the inserter 51 is movable between a retracted position for receiving an insert sheet and an extended position for depositing the insert sheet in the reception zone 2 between the stacks of poses.
  • the translational drive of the inserter 51 is provided by two chains 18 driven by an actuator, such as a pneumatic linear cylinder (not visible), controlled by the control unit 7 of the processing machine 1, for programming an insert when the stack of poses reaches the desired height.
  • the support of the poses during the evacuation of the stacks of poses without stopping the production is carried out by the non-stop reception grid for the poses 50 distinct, situated above the inserter 51.
  • the non-stop reception grid for the poses 50 comprises a plurality of longitudinal bars. It is movable in the longitudinal direction L between a retracted position in which it is located above the gripping device 13 and an extended position in the reception zone 2 of the pose reception station 500 for receiving the poses during the evacuation of the reception pallet 4.
  • the non-stop reception grid for the poses 50 is also vertically movable by motorized drive to adapt to the level of accumulation of poses.
  • the non-stop reception grid for the poses 50 of this embodiment does not provide the inserting function.
  • the invention is not limited to a pose reception station 500 in which the attachment points between the poses are separate but can be applied to a pose reception station receiving stacks of full sheets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Manipulator (AREA)

Description

La présente invention concerne un dispositif de saisie de feuilles d'encart pour l'encartage entre piles de poses dans une zone de réception d'une station de réception des poses. La présente invention concerne également un dispositif de chargement de feuilles d'encart, une station de réception des poses et une machine de traitement d'éléments en forme de feuilles comportant ledit dispositif de saisie de feuilles d'encart.The present invention relates to a device for entering insert sheets for inserting between stacks of poses in a reception area of a station for receiving poses. The present invention also relates to a device for loading sheet inserts, a station for receiving poses and a machine for processing sheet-shaped elements comprising said device for entering sheet inserts.

Dans les stations de réception, la séparation des poses consiste, après façonnage et éjection complète des déchets, à rompre les points d'attache entre les poses d'une feuille au moyen d'un outil supérieur mâle et d'un outil inférieur femelle montés verticalement l'un au-dessus de l'autre dans la zone de réception des feuilles. L'outil supérieur est constitué d'éléments pousseurs légèrement plus petits que le pourtour des poses. L'outil inférieur est constitué d'une grille dont la forme des mailles correspond généralement au pourtour des poses. Les poses tombent à travers ces mailles et s'empilent en piles verticales dans la zone de réception.In the receiving stations, the separation of the poses consists, after shaping and complete ejection of the waste, to break the attachment points between the poses of a sheet by means of a male upper tool and a female lower tool mounted vertically one above the other in the leaf receiving area. The upper tool consists of pushing elements slightly smaller than the perimeter of the poses. The lower tool consists of a grid whose mesh shape generally corresponds to the perimeter of the poses. The poses fall through these meshes and stack in vertical stacks in the reception area.

Pour former des piles de poses séparées et stables sous ces outils, sur la palette de réception de la station, un encartage périodique d'une feuille de stabilisation s'avère nécessaire. L'encartage consiste à disposer une feuille d'encart, telle qu'une feuille pleine, entre des piles de poses. Pour que cet encartage puisse être effectué sans nécessiter un arrêt concomitant de l'unité de production, on utilise un dispositif communément appelé grille de réception non-stop.To form stacks of separate and stable poses under these tools, on the pallet for receiving the station, periodic insertion of a stabilization sheet is necessary. Inserting involves placing an insert sheet, such as a full sheet, between stacks of poses. So that this inserting can be carried out without requiring a concomitant shutdown of the production unit, a device commonly known as a non-stop reception grid is used.

Pour effectuer une manœuvre d'encartage, une feuille d'encart est saisie sur une pile de feuilles d'encart disposée à proximité de la zone de réception. La feuille d'encart est ensuite lâchée sur la grille de réception non-stop de poses. La grille de réception non-stop portant la feuille d'encart se déplace ensuite sous l'outil inférieur de séparation des poses. Puis, la grille de réception non-stop retourne au-dessus de la pile de feuilles d'encart recevoir une nouvelle feuille. En quittant la zone de réception, la grille croise les dents d'un peigne qui a pivoté en position de retenue pour retenir la feuille d'encart et ainsi les poses empilées sur cette feuille d'encart, dans la zone de réception. La grille de réception non-stop permet ainsi la dépose d'une feuille d'encart entre les piles de poses et le soutien des poses pendant l'évacuation des piles de poses sans arrêt de la production.To carry out an inserting maneuver, an insert sheet is grabbed from a stack of insert sheets arranged near the reception area. The insert sheet is then dropped onto the non-stop pose reception grid. The non-stop receiving grid carrying the insert sheet then moves under the lower blanking tool. Then, the non-stop receiving grid returns over the stack of insert sheets to receive a new sheet. Leaving the reception area, the grid crosses the teeth of a comb which has pivoted into the retaining position to retain the insert sheet and thus the poses stacked on this insert sheet, in the reception area. The non-stop reception grid thus allows the deposit of an insert sheet between the stacks of poses and the support of the poses during the evacuation of the stacks of poses without stopping production.

La saisie de la feuille d'encart puis sa dépose sur la grille de réception non-stop est généralement réalisée au moyen d'un dispositif à ventouses. Un exemple de dispositif à ventouses connu comporte une barre de ventouses pouvant pivoter entre une position basse dans laquelle les ventouses viennent saisir le bord d'une feuille d'encart et une position haute pour soulever la feuille et la lâcher ensuite sur la grille de réception non-stop. Ce dispositif présente l'avantage d'être peu encombrant, en particulier, l'encombrement de la barre de ventouses en position haute est compatible avec l'espace résiduel situé sous le tapis d'évacuation de la station d'évacuation, elle-même située au-dessus du système de chargement des feuilles d'encart.Typing the insert sheet and then depositing it on the non-stop receiving grid is generally carried out by means of a suction cup device. An example of a known suction cup device comprises a suction cup bar which can pivot between a low position in which the suction cups come to grip the edge of an insert sheet and a high position to lift the sheet and then drop it on the non-stop receiving grid. This device has the advantage of being compact, in particular, the size of the suction cup bar in the high position is compatible with the residual space located under the evacuation conveyor of the evacuation station, itself located above the insert sheet loading system.

Toutefois, la zone de saisie des feuilles d'encart se décale du bord de la feuille avec l'abaissement de la hauteur de la pile de feuilles du fait du mouvement fauchant de la barre de ventouses. Plus la hauteur de la pile de feuilles d'encart diminue et plus la zone de saisie s'écarte du bord de la feuille, ce décalage augmentant avec l'augmentation de la profondeur des bacs de réserve. Le positionnement de la feuille d'encart peut alors devenir imprécis. La feuille d'encart peut se retrouver décalée sur la grille de réception non-stop, puis décalée entre les poses de la pile. Le positionnement correct de la feuille d'encart entre les piles de poses n'est alors plus garanti.However, the input area for insert sheets shifts from the edge of the sheet with the height of the stack of sheets lowering due to the mowing movement of the suction cup bar. The more the height of the stack of inset sheets decreases, the more the input area moves away from the edge of the sheet, this offset increasing with the increase in the depth of the reserve trays. The positioning of the insert sheet can then become imprecise. The insert sheet can be offset on the non-stop receiving grid, then offset between the poses of the stack. The correct positioning of the insert sheet between the stacks of poses is no longer guaranteed.

Le document DE 195 16 023 A1 décrit un dispositif d'encartaae qui soulève une feuille d'encart sur une pile à l'aide d'une bras pivotant munis d'une ventouse puis la dépose sur un grille d'encartaae lorsque celle-ci quitte la zone de réception des poses. Le dispositif de ventouse est ensuite écarté afin de permettre à la grille de monter, puis de s'insérer dans la zone de réception des poses. La grille s'abaisse ensuite à une vitesse qui correspond au rythme de production des poses. Lorsque la grille atteint une position basse, elle quitte la zone de zone de réception des poses pour recevoir une nouvelle feuille d'encart. La feuille d'encart reste dans la zone de réception des poses grâce à une grille verticale qui la retient. Le document ne spécifie pas comment la feuille d'encart est solidarisée et désolidarisée de la grille d'encartage, ni comment sa position sur la grille est réglée.The document DE 195 16 023 A1 describes an inset device which lifts an insert sheet on a stack using a pivoting arm fitted with a suction cup and then deposits it on an inset grid when it leaves the poses reception area . The suction cup device is then moved aside in order to allow the grid to rise, then to be inserted in the zone for receiving the poses. The grid then lowers at a speed that corresponds to the rate of production of the poses. When the grid reaches a low position, it leaves the zone for receiving the blanks to receive a new insert sheet. The insert sheet remains in the poses reception zone thanks to a vertical grid which retains it. The document does not specify how the insert sheet is fixed and detached from the insert grid, nor how its position on the grid is adjusted.

Un des buts de la présente invention est de proposer un dispositif de saisie de feuilles d'encart amélioré permettant de saisir la feuille d'encart dans une même zone de saisie, avec un encombrement réduit, quelle que soit la hauteur de la pile de feuilles d'encart.One of the aims of the present invention is to provide an improved insert sheet entry device enabling the entry of the insert sheet in the same entry area, with a reduced footprint, whatever the height of the stack of sheets. insert.

A cet effet, la présente invention a pour objet un dispositif de saisie de feuilles d'encart pour dispositif de chargement de feuilles d'encart d'une station de réception des poses, le dispositif de saisie comportant un élément d'aspiration configuré pour saisir une feuille d'encart, caractérisé en ce que le dispositif de saisie comporte un axe pivotant et au moins un bras télescopique comportant un bras proximal dont une extrémité est fixée à l'axe pivotant et un bras distal, mobile par rapport au bras proximal et dont une extrémité est articulée en pivotement avec l'élément d'aspiration pour déplacer l'élément d'aspiration entre une position haute et une position basse selon un mouvement vertical de l'élément d'aspiration.To this end, the subject of the present invention is a device for inputting insert sheets for a device for loading inset sheets from a station for receiving poses, the input device comprising a suction element configured to capture an insert sheet, characterized in that the gripping device comprises a pivoting axis and at least one telescopic arm comprising a proximal arm, one end of which is fixed to the pivoting axis and a distal arm, movable relative to the proximal arm and one end of which is articulated in pivoting with the suction element to move the suction element between a high position and a low position according to a vertical movement of the suction element.

La combinaison du mouvement pivotant des bras télescopiques et leur allongement/raccourcissement permet d'effectuer un mouvement vertical de l'élément d'aspiration entre les positions haute et basse. La zone de saisie peut ainsi être réalisée toujours au même endroit de la feuille d'encart, permettant d'assurer que la feuille d'encart soit bien positionnée pour l'opération d'encartage. Ce dispositif de saisie de feuilles d'encart prend donc peu de place tout en permettant de descendre l'élément d'aspiration suffisamment bas dans le logement du bac pour saisir une feuille d'encart au fond du bac. Un tel agencement d'encombrement réduit est plus simple et plus économique à réaliser que de prévoir par exemple un bac mobile verticalement en fonction de la hauteur de la pile contenue.The combination of the pivoting movement of the telescopic arms and their lengthening / shortening allows vertical movement of the suction element between the high and low positions. The input area can thus be carried out always at the same location on the insert sheet, making it possible to ensure that the insert sheet is correctly positioned for the inserting operation. This device for gripping insert sheets therefore takes up little space while allowing the suction element to be lowered sufficiently low into the housing of the container to grip an insert sheet at the bottom of the container. Such a space-saving arrangement is simpler and more economical to produce than, for example, providing a vertically movable container depending on the height of the stack contained.

Selon une ou plusieurs caractéristiques du dispositif de saisie, prise seule ou en combinaison :

  • le bras télescopique s'allonge lorsqu'il pivote en position basse,
  • dans la position haute, le bras télescopique est en position proche de l'horizontale,
  • le dispositif de saisie comporte au moins un élément de contrôle de l'allongement du bras distal en fonction de l'angle de pivotement de l'axe pivotant, configuré pour coopérer avec le bras distal du bras télescopique,
  • l'élément de contrôle comporte un guidage linéaire ou courbe,
  • l'élément de contrôle comporte une rainure inclinée,
    • le positionnement du bras distal dans une première position de la rainure correspondant à un allongement minimum du bras télescopique en position haute,
    • le positionnement du bras distal dans une deuxième position de la rainure correspondant à un allongement maximum du bras télescopique en position basse, le bras télescopique ayant pivoté d'un angle maximum prédéterminé entre la première et la deuxième position, et
    • l'hypoténuse d'un triangle rectangle dont l'une des cathètes correspond à l'allongement du bras télescopique sur ledit angle maximum prédéterminé s'inscrivant dans ladite rainure,
  • l'un des bras parmi le bras distal et le bras proximal comporte au moins un trou oblong à guidage linéaire, coopérant avec au moins un pion porté par l'autre bras pour modifier la longueur du bras télescopique,
  • le bras proximal comporte une paroi double prenant en sandwich le bras distal,
  • l'élément d'aspiration comporte au moins une tête d'aspiration pivotante,
  • l'élément d'aspiration comporte une barre d'aspiration,
  • le dispositif de saisie comporte deux bras télescopiques dont des extrémités respectives sont articulées en pivotement avec une extrémité respective de la barre d'aspiration,
  • le dispositif de saisie comporte au moins un actionneur configuré pour entrainer l'axe pivotant en pivotement,
  • l'actionneur est configuré pour s'arrêter automatiquement sous l'effet d'un contre-effort,
  • l'actionneur est configuré pour déplacer une première extrémité d'un levier dont une deuxième extrémité est fixée à l'axe pivotant.
According to one or more characteristics of the input device, taken alone or in combination:
  • the telescopic arm extends when it pivots in the low position,
  • in the high position, the telescopic arm is in a position close to the horizontal,
  • the gripping device comprises at least one element for controlling the elongation of the distal arm as a function of the pivoting angle of the pivoting axis, configured to cooperate with the distal arm of the telescopic arm,
  • the control element includes linear or curved guidance,
  • the control element has an inclined groove,
    • positioning the distal arm in a first position of the groove corresponding to a minimum elongation of the telescopic arm in the high position,
    • positioning the distal arm in a second position of the groove corresponding to a maximum elongation of the telescopic arm in the low position, the telescopic arm having pivoted by a maximum predetermined angle between the first and the second position, and
    • the hypotenuse of a right triangle, one of the catheters of which corresponds to the elongation of the telescopic arm over said predetermined maximum angle falling within said groove,
  • one of the arms among the distal arm and the proximal arm comprises at least one oblong hole with linear guide, cooperating with at least one pin carried by the other arm to modify the length of the telescopic arm,
  • the proximal arm has a double wall sandwiching the distal arm,
  • the suction element comprises at least one pivoting suction head,
  • the suction element comprises a suction bar,
  • the gripping device comprises two telescopic arms, respective ends of which are pivotally articulated with a respective end of the suction bar,
  • the gripping device comprises at least one actuator configured to drive the pivoting axis in pivoting,
  • the actuator is configured to stop automatically under the effect of a counter-force,
  • the actuator is configured to move a first end of a lever, a second end of which is fixed to the pivoting axis.

L'invention a aussi pour objet un dispositif de chargement de feuilles d'encart, caractérisé en ce qu'il comporte un dispositif de saisie de feuilles d'encart tel que défini précédemment.The invention also relates to a device for loading insert sheets, characterized in that it comprises a device for entering insert sheets as defined above.

L'invention a aussi pour objet une station de réception des poses d'une machine de traitement d'éléments en forme de feuilles, caractérisée en ce qu'elle comporte un dispositif de chargement de feuilles d'encart tel que défini précédemment.The subject of the invention is also a station for receiving the poses of a machine for processing sheet-shaped elements, characterized in that it comprises a device for loading inset sheets as defined above.

L'invention a encore pour objet une machine de traitement d'éléments en forme de feuilles, caractérisée en ce qu'elle comporte une station de réception des poses telle que définie précédemment.The invention also relates to a machine for processing elements in the form of sheets, characterized in that it comprises a station for receiving poses as defined above.

DESCRIPTION SOMMAIRE DES DESSINSSUMMARY DESCRIPTION OF THE DRAWINGS

D'autres avantages et caractéristiques apparaîtront à la lecture de la description de l'invention, ainsi que sur les figures annexées qui représentent un exemple de réalisation non limitatif de l'invention et sur lesquelles :

  • La figure 1 illustre de façon très schématique un exemple de machine de traitement d'éléments en forme de feuilles.
  • La figure 2 montre un premier exemple de réalisation d'un dispositif de chargement de feuilles d'encart, agencé à côté d'une zone de réception de poses, avec une grille de réception non-stop située dans la zone de réception et un dispositif de saisie de feuilles d'encart en position haute.
  • La figure 3 est une vue similaire à la figure 2, avec la grille de réception non-stop située au-dessus d'un bac de réserve de feuilles d'encart.
  • La figure 4 montre une vue en perspective du dispositif de saisie de la figure 2 en position basse.
  • La figure 5 montre une vue en perspective du dispositif de saisie de la figure 2 en position haute.
  • La figure 6a montre une vue de côté d'éléments du dispositif de saisie de la figure 2 en position haute.
  • La figure 6b est une vue similaire à la figure 6a avec le dispositif de saisie en position basse.
  • La figure 7 est une vue schématique illustrant les relations géométriques entre l'angle de pivotement du bras télescopique, l'allongement du bras télescopique, l'orientation et la dimension d'une rainure d'un élément de contrôle de l'allongement du bras distal du dispositif de saisie de la figure 2.
  • La figure 8 montre un deuxième exemple de réalisation d'un dispositif de chargement de feuilles d'encart avec une grille de réception non-stop et un encarteur en position sortie.
Other advantages and characteristics will appear on reading the description of the invention, as well as in the appended figures which represent a non-limiting exemplary embodiment of the invention and in which:
  • The figure 1 very schematically illustrates an example of a machine for processing sheet-shaped elements.
  • The figure 2 shows a first embodiment of a device for loading insert sheets, arranged next to a poses reception area, with a non-stop reception grid located in the reception area and a device for entering insert sheets in high position.
  • The figure 3 is a view similar to the figure 2 , with the non-stop receiving grid located above a reserve tray of insert sheets.
  • The figure 4 shows a perspective view of the device for capturing the figure 2 in the low position.
  • The figure 5 shows a perspective view of the device for capturing the figure 2 in the high position.
  • The figure 6a shows a side view of elements of the data entry device figure 2 in the high position.
  • The figure 6b is a view similar to the figure 6a with the gripping device in the low position.
  • The figure 7 is a schematic view illustrating the geometric relationships between the pivoting angle of the telescopic arm, the elongation of the telescopic arm, the orientation and the dimension of a groove of a control element for the elongation of the distal arm of the device for entering the figure 2 .
  • The figure 8 shows a second embodiment of a device for loading inset sheets with a non-stop receiving grid and an inserter in the extended position.

Sur ces figures, les éléments identiques portent les mêmes numéros de référence. Les réalisations suivantes sont des exemples. Bien que la description se réfère à un ou plusieurs modes de réalisation, ceci ne signifie pas nécessairement que chaque référence concerne le même mode de réalisation, ou que les caractéristiques s'appliquent seulement à un seul mode de réalisation. De simples caractéristiques de différents modes de réalisation peuvent également être combinées ou interchangées pour fournir d'autres réalisations.In these figures, identical elements have the same reference numbers. The following embodiments are examples. Although the description refers to one or more embodiments, this does not necessarily mean that each reference relates to the same embodiment, or that the characteristics apply only to a single embodiment. Simple features of different embodiments can also be combined or interchanged to provide other embodiments.

On désigne les directions longitudinale, verticale et transversale indiquées sur la figure 2 par le trièdre (L, V, T). La direction transversale T est la direction perpendiculaire à la direction longitudinale de déplacement D d'une feuille, tel qu'illustré par la flèche D sur les figures 1 et 2. Le plan horizontal correspond au plan (L, T).We designate the longitudinal, vertical and transverse directions indicated on the figure 2 by the trihedron (L, V, T). The transverse direction T is the direction perpendicular to the longitudinal direction of movement D of a sheet, as illustrated by the arrow D on the figures 1 and 2 . The horizontal plane corresponds to the (L, T) plane.

On définit les termes amont et aval en référence à la direction longitudinale de déplacement D. Les feuilles se déplacent d'amont en aval, en suivant généralement l'axe principal longitudinal de la machine, dans un mouvement cadencé par des arrêts périodiques.The terms upstream and downstream are defined with reference to the longitudinal direction of movement D. The sheets move from upstream to downstream, generally following the main longitudinal axis of the machine, in a movement clocked by periodic stops.

Les termes « éléments plats » et « feuilles » seront considérés comme équivalents, et concerneront aussi bien des éléments composés de carton ondulé que de carton plat, de papier ou de toute autre matière utilisée couramment dans l'industrie de l'emballage. Il est entendu que dans l'ensemble de ce texte, les termes « feuille » ou « élément en feuilles » ou « élément en forme de feuilles » désignent de façon très générale tout support d'impression en forme de feuilles tel que, par exemple, des feuilles de carton, de papier, de matière plastique, etc...The terms “flat elements” and “sheets” will be considered equivalent, and will relate to elements composed of corrugated cardboard as well as flat cardboard, paper or any other material commonly used in the packaging industry. It is understood that throughout this text, the terms "leaf" or "leaf element" or "element in sheet form "means very generally any print medium in the form of sheets such as, for example, sheets of cardboard, paper, plastic material, etc.

La figure 1 représente un exemple de machine de traitement 1 pour la transformation de feuilles. Cette machine de traitement 1 est classiquement composée de plusieurs stations de travail qui sont juxtaposées mais interdépendantes une à une pour former un ensemble unitaire. On trouve ainsi une station d'introduction 100, une table de marge 200, une station de transformation 300 pour la découpe des feuilles, telle que comprenant une presse à platines 301, une station d'éjection des déchets 400, une station de réception des poses 500 où les feuilles transformées sont reconditionnées en pile et les déchets de feuilles découpées sont évacués.The figure 1 shows an example of processing machine 1 for processing sheets. This processing machine 1 is conventionally composed of several work stations which are juxtaposed but interdependent one by one to form a unitary assembly. There is thus an introduction station 100, a margin table 200, a processing station 300 for cutting the sheets, such as comprising a plate press 301, a waste ejection station 400, a station for receiving the poses 500 where the transformed sheets are repackaged in a pile and the cut sheet waste is disposed of.

L'opération de transformation de chaque feuille s'opère dans la station de transformation 300, par exemple entre une platine fixe et une platine mobile inférieure de la presse 301 pour la découpe des feuilles selon une matrice correspondant à la forme développée que l'on souhaite obtenir, par exemple en vue d'obtenir une pluralité de boîtes d'une forme donnée. La platine mobile s'élève et s'abaisse successivement une fois au cours de chaque cycle machine.The transformation operation of each sheet takes place in the transformation station 300, for example between a fixed plate and a lower movable plate of the press 301 for cutting the sheets according to a matrix corresponding to the developed shape which is wishes to obtain, for example in order to obtain a plurality of boxes of a given shape. The movable stage rises and falls successively once during each machine cycle.

Un dispositif de transport 70 est par ailleurs prévu pour déplacer individuellement chaque feuille depuis la sortie de la table de marge 200 jusqu'à la station de réception des poses 500, en passant par la station de transformation 300 par presse.A transport device 70 is also provided for individually moving each sheet from the output of the margin table 200 to the station receiving station 500, passing through the transformer station 300 by press.

Le dispositif de transport 70 comporte une pluralité de barres transversales munies de pinces, communément appelées barres de pinces 75 qui viennent chacune à leur tour saisir une feuille au niveau de son bord frontal, avant de la tirer successivement dans les différents postes des stations 300, 400, 500 de la machine 1.The transport device 70 comprises a plurality of transverse bars provided with grippers, commonly called gripper bars 75 which each come in their turn to grab a sheet at its front edge, before drawing it successively in the various stations of the stations 300, 400, 500 of machine 1.

Les extrémités des barres de pinces 75 sont chacune reliées respectivement à une chaîne latérale formant une boucle, communément appelée train de chaînes 80. Deux trains de chaînes 80 sont ainsi disposés latéralement de chaque côté des barres de pinces 75.The ends of the clamp bars 75 are each connected respectively to a side chain forming a loop, commonly called chain train 80. Two chain trains 80 are thus arranged laterally on each side of the clamp bars 75.

Grâce à un mouvement transmis aux trains de chaînes 80, l'ensemble des barres de pinces 75 va partir d'une position arrêtée, accélérer, atteindre une vitesse maximale décélérer, puis s'arrêter, en décrivant ainsi un cycle correspondant au déplacement d'une feuille d'une station de travail à la station de travail suivant. Les trains de chaînes 80 se déplacent et s'arrêtent périodiquement de sorte que, durant chaque déplacement, toutes les barres de pinces 75 en prise avec une feuille sont passées d'une station à la station de travail aval adjacente. Chaque station effectue son travail en synchronisme avec ce cycle que l'on appelle communément cycle machine. Les stations de travail sont en position initiale pour démarrer un nouveau travail à chaque début de cycle machine.Thanks to a movement transmitted to the chains of chains 80, the set of gripper bars 75 will start from a stopped position, accelerate, reach a maximum speed decelerate, then stop, thus describing a cycle corresponding to the movement of a sheet from one workstation to the next workstation. The chain trains 80 move and stop periodically so that, during each movement, all the gripper bars 75 engaged with a sheet are passed from one station to the adjacent downstream work station. Each station performs its work in synchronism with this so-called cycle commonly machine cycle. The workstations are in the initial position to start a new job at the start of each machine cycle.

Le nombre et la nature des stations de traitement dans une machine de traitement 1 peuvent varier en fonction de la nature et de la complexité des opérations à effectuer sur les feuilles. Dans le cadre de l'invention, la notion de machine de traitement couvre ainsi un très grand nombre de réalisations du fait de la structure modulaire de ces ensembles. Suivant le nombre, la nature et l'agencement des stations de travail utilisées, il est en effet possible d'obtenir une multitude de machines de traitement différentes. Il est également important de souligner qu'il existe d'autres types de stations de travail que celles évoquées, telles que des stations de gaufrage, refoulage ou telle que des stations de chargement de bandes à estamper pour machine d'estampage ou machine de dorure à chaud (« hot foil stamping » en anglais) où on réalise entre les platines d'une presse, la dépose sur chaque feuille, de motifs à partir d'un film issu d'une ou de plusieurs bandes à estamper. Enfin, il est entendu qu'une même machine de traitement peut très bien être équipée de plusieurs stations d'un même type.The number and nature of the processing stations in a processing machine 1 can vary depending on the nature and the complexity of the operations to be performed on the sheets. In the context of the invention, the concept of processing machine thus covers a very large number of embodiments due to the modular structure of these assemblies. Depending on the number, nature and arrangement of the workstations used, it is indeed possible to obtain a multitude of different processing machines. It is also important to underline that there are other types of work stations than those mentioned, such as embossing, upsetting stations or such as stations for loading stripes for stamping for stamping machine or foil stamping machine. hot foil stamping in which between the platens of a press, patterns are applied to each sheet, from a film made from one or more stamping bands. Finally, it is understood that the same processing machine may very well be equipped with several stations of the same type.

Dans la station de réception des poses 500, après façonnage dans la station de transformation 300 et éjection des déchets dans la station d'éjection des déchets 400, les points d'attache entre les poses d'une feuille sont rompus au moyen d'un outil supérieur mâle et d'un outil inférieur femelle montés verticalement l'un au-dessus de l'autre dans une zone de réception 2 représentée sur la figure 2.In the poses reception station 500, after shaping in the transformation station 300 and waste ejection in the waste ejection station 400, the attachment points between the poses of a sheet are broken by means of a male upper tool and a female lower tool mounted vertically one above the other in a receiving zone 2 shown in the figure 2 .

L'outil supérieur est constitué d'éléments pousseurs légèrement plus petits que le pourtour des poses. L'outil inférieur 3 est formé d'une grille dont la forme des mailles correspond généralement au pourtour des poses. Dans l'exemple, l'outil inférieur 3 comporte des barres longitudinales et transversales formant une grille à mailles carrées. Les poses tombent à travers les mailles de cette grille et s'empilent en piles verticales dans la zone de réception 2 sur une palette de réception 4 portée par un cadre 501 de la station 500, mobile verticalement.The upper tool consists of pushing elements slightly smaller than the perimeter of the poses. The lower tool 3 is formed of a grid, the mesh shape of which generally corresponds to the periphery of the poses. In the example, the lower tool 3 comprises longitudinal and transverse bars forming a grid with square meshes. The poses fall through the meshes of this grid and stack in vertical stacks in the reception zone 2 on a reception pallet 4 carried by a frame 501 of the station 500, vertically movable.

La station de réception des poses 500 comporte un dispositif de chargement 10 de feuilles d'encart, fixé au bâti de la machine 1. L'encartage consiste à disposer une feuille d'encart, telle qu'une feuille pleine, entre des piles de poses dans la zone de réception 2.The poses reception station 500 includes a device 10 for loading inset sheets, fixed to the frame of the machine 1. Insetting consists in placing an inset sheet, such as a full sheet, between stacks of poses in the reception area 2.

Le dispositif de chargement 10 comporte un bac 11 de réserve de feuilles d'encart, une grille de réception non-stop 12, un dispositif de saisie 13 de feuilles d'encart et un peigne de retenue 14 pivotant.The loading device 10 comprises a tray 11 for reserving insert sheets, a non-stop reception grid 12, a device 13 for gripping insert sheets and a pivoting retaining comb 14.

Le bac 11 comporte un logement 9 destiné à recevoir une pile 8 de feuilles d'encart. Le bac 11 est mobile en translation dans la direction transversale T pour pouvoir être rechargé par un opérateur à travers une fenêtre du bâti 16 du dispositif de chargement 10, depuis un côté du dispositif de chargement 10. Le bac 11 peut être monté sur deux glissières transversales 15 et comporter une poignée, tel un tiroir.The tray 11 includes a housing 9 intended to receive a stack 8 of insert sheets. The tank 11 is movable in translation in the transverse direction T so that it can be reloaded by an operator through a window of the frame 16 of the loading device 10, from one side of the loading device 10. The container 11 can be mounted on two transverse slides 15 and include a handle, such as a drawer.

La grille de réception non-stop 12 est mobile en translation dans la direction longitudinale de déplacement des feuilles D entre une position rentrée au-dessus du bac 11 pour recevoir une feuille d'encart (figure 3) et une position sortie pour l'insertion de la feuille d'encart dans la zone de réception 2 (figure 2).The non-stop reception grid 12 is movable in translation in the longitudinal direction of movement of the sheets D between a retracted position above the tray 11 to receive an insert sheet ( figure 3 ) and an extended position for inserting the insert sheet into the receiving area 2 ( figure 2 ).

La grille de réception non-stop 12 comporte au moins une traverse portant une pluralité de barres longitudinales. Les extrémités de la traverse sont par exemple munies de galets rotatifs, coopérant avec des glissières longitudinales 17 portées par le bâti 16. L'entrainement en translation de la grille de réception 12 est assurée par deux chaines 18 entrainées par un moteur (non visible), piloté par une unité de contrôle 7 de la machine de traitement 1, pour programmer un encartage lorsque la pile de poses atteint la hauteur souhaitée.The non-stop reception grid 12 comprises at least one crosspiece carrying a plurality of longitudinal bars. The ends of the cross member are for example provided with rotating rollers, cooperating with longitudinal slides 17 carried by the frame 16. The drive in translation of the receiving grid 12 is provided by two chains 18 driven by a motor (not visible) , controlled by a control unit 7 of the processing machine 1, to program an insert when the stack of poses reaches the desired height.

Le peigne de retenue 14 comporte des dents régulièrement espacées dans la direction transversale. Le peigne 14 est monté pivotant autour d'un axe transversal interposé entre le bac 11 et la zone de réception 2 des poses. Le peigne 14 est pivotant entre une position de retenue dans laquelle les dents du peigne 14 passent entre les barres longitudinales de la grille de réception non-stop 12 et une position libérée dans laquelle les dents du peigne sont escamotées.The retaining comb 14 has teeth regularly spaced in the transverse direction. The comb 14 is pivotally mounted around a transverse axis interposed between the tray 11 and the reception area 2 of the poses. The comb 14 is pivotable between a retaining position in which the teeth of the comb 14 pass between the longitudinal bars of the non-stop receiving grid 12 and a released position in which the teeth of the comb are retracted.

Le dispositif de saisie 13 de feuilles d'encart est agencé au-dessus de la grille de réception non-stop 12 lorsque cette dernière est en position rentrée. Le dispositif de saisie 13 est configuré pour soulever une feuille d'encart dans le bac 11 de réserve de feuille d'encart et pour déposer la feuille d'encart soulevée sur la grille de réception non-stop 12 lorsque cette dernière se déplace en position rentrée au-dessus du bac 11.The input device 13 for insert sheets is arranged above the non-stop reception grid 12 when the latter is in the retracted position. The gripping device 13 is configured to lift an insert sheet in the insert sheet reserve tray 11 and to deposit the raised insert sheet on the non-stop receiving grid 12 when the latter moves into position retracted above bin 11.

Le dispositif de saisie 13 de feuilles d'encart comporte un élément d'aspiration 20 configuré pour saisir une feuille d'encart et comporte un support 21 destiné à être monté sur le bâti 16 du dispositif de chargement 10, pour porter et déplacer l'élément d'aspiration 20 vers ou à l'écart de la pile 8 de feuilles d'encart. Le support 21 peut être monté en coulissement longitudinal sur le bâti 16 pour adapter le positionnement longitudinal de la zone de saisie au format des feuilles d'encart.The input device 13 for inserting sheets comprises a suction element 20 configured to grip an insert sheet and comprises a support 21 intended to be mounted on the frame 16 of the loading device 10, for carrying and moving the suction element 20 towards or away from the stack 8 of insert sheets. The support 21 can be mounted in longitudinal sliding on the frame 16 to adapt the longitudinal positioning of the entry area to the format of the insert sheets.

Le support 21 comporte un axe pivotant 30 et au moins un bras télescopique 33. Le bras télescopique 33 comporte un bras proximal 33a dont une extrémité est fixée à l'axe pivotant 30 et un bras distal 33b, mobile par rapport au bras proximal 33a dans la direction principale du bras proximal 33a. Une extrémité du bras distal 33b est articulée en pivotement avec l'élément d'aspiration 20 pour déplacer l'élément d'aspiration 20 entre une position haute (figure 6a) et une position basse (figure 6b).The support 21 comprises a pivoting axis 30 and at least one telescopic arm 33. The telescopic arm 33 comprises a proximal arm 33a, one end of which is fixed to the pivoting axis 30 and a distal arm 33b, movable relative to the proximal arm 33a in the main direction of the proximal arm 33a. One end of the distal arm 33b is pivotally articulated with the suction element 20 to move the suction element 20 between a high position ( figure 6a ) and a low position ( figure 6b ).

La rotation de l'axe pivotant 30 entraine l'allongement ou le raccourcissement des bras télescopiques 33. La combinaison du mouvement pivotant des bras télescopiques 33 et leur allongement/raccourcissement permet d'effectuer un mouvement vertical de l'élément d'aspiration 20 entre les positions haute et basse.The rotation of the pivoting axis 30 causes the telescopic arms 33 to be lengthened or shortened. The combination of the pivoting movement of the telescopic arms 33 and their lengthening / shortening makes it possible to effect a vertical movement of the suction element 20 between the high and low positions.

On prévoit notamment que le bras télescopique 33 s'allonge lorsqu'il pivote en position basse. En outre, le bras télescopique 33 peut être en position proche de l'horizontale dans la position haute (figures 5 et 6a), c'est-à-dire que le bras télescopique 33 est agencé à l'horizontale en position haute avec une inclinaison possible par rapport à l'horizontale inférieure à +/- 5°, ce qui limite l'encombrement du dispositif de saisie 13 en position haute. Un tel agencement présente un encombrement réduit et est simple et économique à réaliser.Provision is made in particular for the telescopic arm 33 to lengthen when it pivots in the low position. In addition, the telescopic arm 33 can be in a position close to the horizontal in the high position ( figures 5 and 6a ), that is to say that the telescopic arm 33 is arranged horizontally in the high position with a possible inclination relative to the horizontal of less than +/- 5 °, which limits the size of the device. grip 13 in the high position. Such an arrangement has a reduced bulk and is simple and economical to produce.

L'élément d'aspiration 20 est relié à une source de vide, telle qu'une pompe à vide ou un dispositif Venturi, par exemple au moyen de flexibles portés d'une part, par un porte-flexible 19 en forme de « U » du support 21 et d'autre part, par un boitier 25 du support 21. Le boitier 25 est par exemple fixé à l'axe pivotant 30. Les flexibles permettent d'adapter la longueur des canalisations à la position haute ou basse de l'élément d'aspiration 20. Le porte-flexible 19 facilite le guidage des flexibles, notamment lorsque le support 21 coulisse sur le bâti 16. Le boitier 25 permet de loger un surplus de longueur des flexibles pour permettre leur extension lorsque le dispositif de saisie 13 est en position basse. Le boitier 25 est par exemple agencé au centre de l'axe pivotant 30.The suction element 20 is connected to a vacuum source, such as a vacuum pump or a Venturi device, for example by means of hoses carried on the one hand, by a hose holder 19 in the shape of a "U". »Of the support 21 and on the other hand, by a case 25 of the support 21. The case 25 is for example fixed to the pivoting axis 30. The hoses make it possible to adapt the length of the pipes to the high or low position of the suction element 20. The hose holder 19 facilitates the guidance of the hoses, in particular when the support 21 slides on the frame 16. The housing 25 makes it possible to accommodate an excess of length of the hoses to allow their extension when the gripping device 13 is in the low position. The case 25 is for example arranged in the center of the pivoting axis 30.

La source de vide est contrôlée par l'unité de contrôle 7 pour établir une basse pression d'aspiration dans l'élément d'aspiration 20 ou pour arrêter l'aspiration.The vacuum source is controlled by the control unit 7 to establish a low suction pressure in the suction element 20 or to stop the suction.

L'élément d'aspiration 20 comporte une ou une pluralité de têtes d'aspiration 23, telles que des ventouses. Les ventouses comportent une calotte souple qui peut être maintenue par la pression de l'air sur la surface de la feuille d'encart.The suction element 20 includes one or a plurality of suction heads 23, such as suction cups. The suction cups have a flexible cap which can be maintained by air pressure on the surface of the insert sheet.

Les têtes d'aspiration 23 peuvent être montées pivotantes autour d'un axe transversal de manière que la gravité et/ou la force d'aspiration permette d'orienter correctement les têtes d'aspiration 23 à plat contre la feuille d'encart.The suction heads 23 can be pivotally mounted about a transverse axis so that the gravity and / or the suction force makes it possible to correctly orient the suction heads 23 flat against the insert sheet.

Selon un exemple de réalisation, l'élément d'aspiration 20 comporte une barre d'aspiration comprenant une barre transversale 22, perpendiculaire à la direction longitudinale de déplacement des feuilles D. Dans l'exemple illustré sur la figure 5, l'élément d'aspiration 20 comporte une barre d'aspiration munie de cinq têtes d'aspiration 23 agencées de manière symétrique et montées pivotantes dans la barre transversale 22.According to an exemplary embodiment, the suction element 20 comprises a suction bar comprising a transverse bar 22, perpendicular to the longitudinal direction of movement of the sheets D. In the example illustrated on the figure 5 , the suction element 20 comprises a suction bar provided with five suction heads 23 arranged symmetrically and pivotally mounted in the transverse bar 22.

Comme on peut le voir sur les figures 2 à 5, le support 21 comporte par exemple deux bras télescopiques 33 dont les extrémités respectives sont articulées en pivotement avec une extrémité respective de la barre d'aspiration, ce qui confère une meilleure rigidité au système et facilite l'alignement des têtes d'aspiration 23.As we can see on the figures 2 to 5 , the support 21 comprises for example two telescopic arms 33, the respective ends of which are pivotally articulated with a respective end of the suction bar, which gives better rigidity to the system and facilitates the alignment of the suction heads 23.

L'élément d'aspiration 20 comporte par exemple un pion cylindrique 24 à chaque extrémité coopérant avec un orifice complémentaire ménagé dans l'extrémité du bras distal 33b. Les bras télescopiques 33, l'axe pivotant 30 et la barre d'aspiration 20 forment un cadre sensiblement horizontal dans la position haute (figure 5).The suction element 20 comprises for example a cylindrical pin 24 at each end cooperating with a complementary orifice formed in the end of the distal arm 33b. The telescopic arms 33, the pivoting axis 30 and the suction bar 20 form a substantially horizontal frame in the high position ( figure 5 ).

L'un des bras parmi le bras distal 33b et le bras proximal 33a comporte au moins un trou oblong 34 à guidage linéaire s'étendant dans la direction principale du bras proximal 33a, telle qu'une rainure. Le trou oblong 34 coopère avec au moins un pion 35 porté par l'autre bras, pour modifier la longueur du bras télescopique 33, c'est-à-dire allonger ou raccourcir la longueur du bras distal 33b par rapport au bras proximal 33a. Dans l'exemple illustré, le bras proximal 33a comporte par exemple deux trous oblongs 34 alignés coopérant avec un pion 35 respectif du bras distal 33b. La longueur des trous oblongs 34 est par exemple comprise entre 30 et 50mm, telle que de l'ordre de 40mm.One of the arms among the distal arm 33b and the proximal arm 33a has at least one oblong hole 34 with linear guide extending in the main direction of the proximal arm 33a, such as a groove. The oblong hole 34 cooperates with at least one pin 35 carried by the other arm, to modify the length of the telescopic arm 33, that is to say lengthen or shorten the length of the distal arm 33b relative to the proximal arm 33a. In the example illustrated, the proximal arm 33a comprises for example two aligned oblong holes 34 cooperating with a respective pin 35 of the distal arm 33b. The length of the oblong holes 34 is for example between 30 and 50mm, such as of the order of 40mm.

D'autres formes de réalisation peuvent être envisagées pour le au moins un bras télescopique 33. Par exemple le bras distal 33b est mobile en coulissement par rapport au bras proximal 33a au moyen d'un rail porté par le bras proximal 33a ou par le bras distal 33b, l'autre bras portant une nervure complémentaire. Selon un autre exemple, le bras distal 33b est mobile en emboitement dans le bras proximal 33a, le bras distal 33b et le bras proximal 33a présentant par exemple des formes cylindriques complémentaires.Other embodiments can be envisaged for the at least one telescopic arm 33. For example the distal arm 33b is movable in sliding with respect to the proximal arm 33a by means of a rail carried by the proximal arm 33a or by the arm distal 33b, the other arm carrying a complementary rib. According to another example, the distal arm 33b can be moved into the proximal arm 33a, the distal arm 33b and the proximal arm 33a having, for example, complementary cylindrical shapes.

Le support 21 peut comporter en outre au moins un élément de contrôle 36 de l'allongement du bras distal 33b en fonction de l'angle de pivotement de l'axe pivotant 30, configuré pour coopérer avec le bras distal 33b du bras télescopique 33. L'élément de contrôle 36 comporte par exemple un guidage linéaire ou courbe.The support 21 may further comprise at least one control element 36 for the elongation of the distal arm 33b as a function of the pivoting angle of the pivoting axis 30, configured to cooperate with the distal arm 33b of the telescopic arm 33. The control element 36 comprises for example a linear or curved guide.

L'élément de contrôle 36 comporte par exemple un galet de came et une came, l'un étant porté par le bras distal 33b, l'autre étant fixé à la poutre transversale 38 (non représenté). Le galet de came est sollicité à l'encontre de la came, la surface de came définissant l'allongement du bras distal 33b en fonction de l'angle de pivotement de l'axe pivotant 30.The control element 36 comprises for example a cam roller and a cam, one being carried by the distal arm 33b, the other being fixed to the transverse beam 38 (not shown). The cam roller is biased against the cam, the cam surface defining the elongation of the distal arm 33b as a function of the pivot angle of the pivot axis 30.

Selon un autre exemple visible sur les figures 6a, 6b, l'élément de contrôle 36 comporte une rainure 39 inclinée, ce qui est particulièrement simple à réaliser pour obtenir le mouvement vertical de l'élément d'aspiration 20. La rainure 39 s'étend en suivant une droite formant un angle par exemple compris entre 25° et 55° avec la verticale.According to another example visible on Figures 6a, 6b , the control element 36 has an inclined groove 39, which is particularly simple to produce in order to obtain the vertical movement of the suction element 20. The groove 39 extends along a straight line forming an angle, for example understood between 25 ° and 55 ° with the vertical.

Selon un exemple de réalisation, la rainure 39 inclinée est ménagée dans une plaque 37, fixée à la poutre transversale 38 du support 21. La rainure 39 inclinée coopère avec une protubérance 40 portée par l'extrémité du bras distal 33b.According to an exemplary embodiment, the inclined groove 39 is formed in a plate 37, fixed to the transverse beam 38 of the support 21. The inclined groove 39 cooperates with a protuberance 40 carried by the end of the distal arm 33b.

Plus précisément et comme schématisé sur la figure 7, le positionnement du bras distal 33b dans une première position 39a de la rainure 39 correspond à un allongement minimum du bras télescopique 33 en position haute. Le positionnement du bras distal 33b dans une deuxième position 39b de la rainure 39 correspond à un allongement maximum du bras télescopique 33 en position basse, après que le bras télescopique 33 ait pivoté d'un angle maximum prédéterminé α entre la première et la deuxième position. L'hypoténuse d'un triangle rectangle T dont l'une des cathètes, la plus longue b, correspond à l'allongement a du bras télescopique 33 sur ledit angle maximum prédéterminé α s'inscrit dans ladite rainure 39.More precisely and as schematized on the figure 7 , the positioning of the distal arm 33b in a first position 39a of the groove 39 corresponds to a minimum elongation of the telescopic arm 33 in the high position. The positioning of the distal arm 33b in a second position 39b of the groove 39 corresponds to a maximum elongation of the telescopic arm 33 in the low position, after the telescopic arm 33 has pivoted by a maximum predetermined angle α between the first and the second position . The hypotenuse of a right triangle T, one of the catheters of which, the longest b, corresponds to the elongation a of the telescopic arm 33 over said predetermined maximum angle α fits into said groove 39.

Chaque bras proximal 33a est par exemple formé d'une paroi double prenant en sandwich un bras distal 33b, par exemple en recouvrant le bras distal 33b approximativement sur ses deux tiers en position haute (figure 6a). Des trous oblongs 34 sont ménagés sur chaque paroi de la paroi double en parallèle et coopèrent avec des pions 35 agencés de part et d'autre du bras distal 33b. Les plaques 37 des éléments de contrôle 36 des bras télescopiques 33 sont par exemple interposées entre les parois de la paroi double des bras proximaux 33a, en amont des bras distaux 33b.Each proximal arm 33a is for example formed of a double wall sandwiching a distal arm 33b, for example by covering the distal arm 33b approximately on its two thirds in the high position ( figure 6a ). Oblong holes 34 are formed on each wall of the double wall in parallel and cooperate with pins 35 arranged on either side of the distal arm 33b. The plates 37 of the control elements 36 of the telescopic arms 33 are for example interposed between the walls of the double wall of the proximal arms 33a, upstream of the distal arms 33b.

Le dispositif de saisie 13 peut comporter au moins un actionneur 41, tel qu'un vérin, comme un vérin pneumatique, configuré pour entrainer l'axe pivotant 30 en pivotement (figure 5). L'actionneur 41 est par exemple configuré pour s'arrêter automatiquement sous l'effet d'un contre-effort. Ainsi, lorsque l'élément d'aspiration 20 vient en appui contre la pile 8 de feuille d'encart, le contre-effort exercé par la pile 8 est détecté par l'actionneur 41 qui arrête l'entrainement en rotation. La course de l'actionneur 41 peut ainsi être modulée en fonction de la hauteur de la pile 8 de feuilles d'encart.The gripping device 13 may comprise at least one actuator 41, such as a jack, such as a pneumatic jack, configured to drive the pivoting axis 30 in pivoting ( figure 5 ). The actuator 41 is for example configured to stop automatically under the effect of a counter-force. Thus, when the suction element 20 comes to bear against the stack 8 of insert sheet, the counter-force exerted by the stack 8 is detected by the actuator 41 which stops the drive in rotation. The stroke of the actuator 41 can thus be modulated as a function of the height of the stack 8 of inset sheets.

Le dispositif de saisie peut comporter un levier 42, l'actionneur 41 étant relié à une première extrémité du levier 42 dont une deuxième extrémité est fixée à l'axe pivotant 30. Le levier 42 est par exemple relié à une extrémité de l'axe pivotant 30 située du côté extérieur de la joue latérale 32 sur laquelle l'actionneur 41 peut être fixé. L'actionnement du vérin fait pivoter le levier 42, entrainant l'axe pivotant 30 en rotation et consécutivement, l'allongement ou le raccourcissement des bras distaux 33b.The gripping device may comprise a lever 42, the actuator 41 being connected to a first end of the lever 42, a second end of which is fixed to the pivoting axis 30. The lever 42 is for example connected to one end of the axis pivoting 30 located on the outside of the side cheek 32 on which the actuator 41 can be fixed. Actuation of the cylinder rotates the lever 42, driving the pivoting axis 30 in rotation and consecutively, the elongation or shortening of the distal arms 33b.

L'axe pivotant 30 pivote par exemple dans des paliers 31 fixés aux joues latérales 32 du support 21. Il peut également être envisagé que le dispositif de saisie 13 comporte un premier et un deuxième axes pivotant alignés transversalement et coopérant avec un palier 31 respectif fixé sur une joue latérale 32 respective (non représentés). Dans ce dernier cas, on prévoit par exemple que le dispositif de saisie 13 comporte deux actionneurs 41, configurés pour entrainer un axe pivotant respectif.The pivoting axis 30 pivots for example in bearings 31 fixed to the lateral cheeks 32 of the support 21. It can also be envisaged that the gripping device 13 comprises a first and a second pivoting axes aligned transversely and cooperating with a respective fixed bearing 31 on a respective side cheek 32 (not shown). In the latter case, it is provided for example that the gripping device 13 comprises two actuators 41, configured to drive a respective pivoting axis.

On va maintenant décrire le fonctionnement du dispositif de saisie 13 en référence aux figures 2, 3, 6a et 6b en considérant comme position de départ la position sortie de la grille de réception non-stop 12 dans la zone de réception 2, à l'écart du bac 11 (figure 2). L'élément d'aspiration 20 est en position haute (figure 6a).We will now describe the operation of the input device 13 with reference to figures 2, 3 , 6a and 6b considering as starting position the exit position of the non-stop reception grid 12 in the reception zone 2, away from the tank 11 ( figure 2 ). The suction element 20 is in the high position ( figure 6a ).

L'entrainement en rotation de l'axe pivotant 30 (dans le sens de rotation horaire sur les figures 6a, 6b) fait translater les pions 35 des bras distaux 33b dans les trous oblongs 34 des bras proximaux 33a et fait translater la protubérance 40 dans la rainure 39 inclinée de l'élément de contrôle 36, allongeant les bras télescopiques 33. Cette combinaison rotation-allongement des bras télescopiques 33 déplace l'élément d'aspiration 20 verticalement vers la pile 8 de feuilles d'encart dans le logement 9 du bac 11 en position basse (figure 6b).The rotary drive of the pivoting axis 30 (clockwise on the Figures 6a, 6b ) translates the pins 35 of the distal arms 33b into the oblong holes 34 of the proximal arms 33a and translates the protuberance 40 into the inclined groove 39 of the control element 36, lengthening the telescopic arms 33. This rotation-elongation combination of telescopic arm 33 moves the suction element 20 vertically towards the stack 8 of insert sheets in the housing 9 of the tray 11 in the low position ( figure 6b ).

L'élément d'aspiration 20 entre alors en contact avec le bord de la feuille d'encart à la hauteur où elle se trouve dans le logement 9. La zone de saisie peut ainsi être réalisée toujours au même endroit de la feuille d'encart indépendamment de la hauteur de la pile 8 de feuilles d'encart. La force d'aspiration de l'élément d'aspiration 20 et/ou la gravité positionne correctement l'élément d'aspiration 20 pour saisir une feuille d'encart à plat. L'actionneur 41 arrête automatiquement l'entrainement en pivotement de l'axe pivotant 30 sous l'effet de ce contre-effort.The suction element 20 then comes into contact with the edge of the insert sheet at the height where it is in the housing 9. The gripping area can thus be carried out always at the same place on the insert sheet regardless of the height of the stack 8 of insert sheets. The suction force of the suction element 20 and / or gravity correctly positions the suction element 20 to grip a flat insert sheet. The actuator 41 automatically stops the pivoting drive of the pivoting axis 30 under the effect of this counter-force.

Une fois la feuille d'encart saisie, l'actionneur 41 est piloté par l'unité de contrôle 7 pour entrainer l'axe pivotant 30 en sens inverse, ce qui a pour effet de raccourcir les bras télescopiques 33 et de soulever la feuille d'encart en position haute par un mouvement vertical de l'élément d'aspiration (figure 6a).Once the insert sheet has been entered, the actuator 41 is controlled by the control unit 7 to drive the pivoting axis 30 in the opposite direction, which has the effect of shortening the telescopic arms 33 and lifting the sheet d insert in the high position by a vertical movement of the suction element ( figure 6a ).

La feuille d'encart peut ensuite être lâchée sur la grille de réception non-stop de poses 12 à son retour de la zone de réception 2 en position rentrée (figure 3).The insert sheet can then be dropped on the non-stop poses reception grid 12 on its return from the reception zone 2 in the retracted position ( figure 3 ).

La zone de saisie étant réalisée toujours au même endroit de la feuille d'encart, on est assuré que la feuille d'encart soit bien positionnée sur la grille de réception non-stop 12.Since the input zone is always carried out at the same location on the insert sheet, it is ensured that the insert sheet is correctly positioned on the non-stop reception grid 12.

Ce dispositif de saisie 13 de feuilles d'encart prend donc peu de place, même en position haute, ce qui permet d'agencer le dispositif de saisie 13 sous le tapis d'évacuation de la machine 1. Le dispositif de saisie 13 permet en outre de descendre l'élément d'aspiration 20 suffisamment bas dans le logement 9 du bac 11 pour pouvoir saisir une feuille d'encart au fond du bac 11.This input device 13 for insert sheets therefore takes up little space, even in the high position, which makes it possible to arrange the input device 13 under the discharge conveyor of the machine 1. The input device 13 allows in addition to lowering the suction element 20 sufficiently low in the housing 9 of the container 11 to be able to grasp an insert sheet at the bottom of the container 11.

La grille de réception non-stop 12 portant la feuille d'encart se déplace ensuite sous l'outil inférieur 3 de séparation des poses pour déposer la feuille d'encart. La grille de réception non-stop 12 retourne ensuite au-dessus de la pile de feuilles d'encart recevoir une nouvelle feuille. En quittant la zone de réception 2, la grille de réception non-stop 12 croise les dents du peigne de retenue 14 qui a pivoté en position de retenue (figure 2) pour retenir la feuille d'encart et donc, les poses empilées sur cette feuille d'encart. La grille de réception non-stop 12 permet ainsi la dépose d'une feuille d'encart entre les piles de poses et peut permettre également de soutenir les poses pendant l'évacuation de la palette de réception 4 portant les piles de poses et l'insertion d'une nouvelle palette de réception 4 vide sans arrêt de la production.The non-stop reception grid 12 carrying the insert sheet then moves under the lower tool 3 for separating the blanks to deposit the insert sheet. The non-stop receiving grid 12 then returns to the top of the stack of insert sheets to receive a new sheet. Leaving the reception zone 2, the non-stop reception grid 12 crosses the teeth of the retaining comb 14 which has pivoted into the retaining position ( figure 2 ) to retain the insert sheet and therefore, the poses stacked on this insert sheet. The non-stop reception grid 12 thus makes it possible to deposit an insert sheet between the stacks of poses and can also make it possible to support the poses during the evacuation of the receiving pallet 4 carrying the stacks of poses and the insertion of a new empty receiving pallet 4 without stopping production.

Comme on peut le voir sur le deuxième exemple illustré par la figure 8, l'invention n'est pas limitée à un dispositif de chargement 10 de feuilles d'encart comportant une grille de réception non-stop 12 adaptée pour assurer les opérations d'encartage mais peut aussi s'appliquer à un dispositif de chargement 10' muni d'une part, d'une grille de réception non-stop des poses 50 et d'autre part, d'un encarteur mobile 51.As can be seen in the second example illustrated by the figure 8 , the invention is not limited to a device 10 for loading inset sheets comprising a non-stop reception grid 12 adapted to ensure the inserting operations but can also be applied to a loading device 10 ' provided on the one hand, with a non-stop reception grid for the poses 50 and on the other hand, with a mobile inserter 51.

L'encarteur 51 est mobile entre une position rentrée pour recevoir une feuille d'encart et une position sortie pour la dépose de la feuille d'encart dans la zone de réception 2 entre les piles de poses. L'entrainement en translation de l'encarteur 51 est assurée par deux chaines 18 entrainées par un actionneur, tel qu'un vérin linéaire pneumatique (non visible), piloté par l'unité de contrôle 7 de la machine de traitement 1, pour programmer un encartage lorsque la pile de poses atteint la hauteur souhaitée.The inserter 51 is movable between a retracted position for receiving an insert sheet and an extended position for depositing the insert sheet in the reception zone 2 between the stacks of poses. The translational drive of the inserter 51 is provided by two chains 18 driven by an actuator, such as a pneumatic linear cylinder (not visible), controlled by the control unit 7 of the processing machine 1, for programming an insert when the stack of poses reaches the desired height.

Toutefois dans ce mode de réalisation, le soutien des poses pendant l'évacuation des piles de poses sans arrêt de la production est réalisé par la grille de réception non-stop des poses 50 distincte, située en dessus de l'encarteur 51.However in this embodiment, the support of the poses during the evacuation of the stacks of poses without stopping the production is carried out by the non-stop reception grid for the poses 50 distinct, situated above the inserter 51.

La grille de réception non-stop des poses 50 comporte une pluralité de barres longitudinales. Elle est mobile dans la direction longitudinale L entre une position rentrée dans laquelle elle est située au-dessus du dispositif de saisie 13 et une position sortie dans la zone de réception 2 de la station de réception des poses 500 pour recevoir les poses pendant l'évacuation de la palette de réception 4. La grille de réception non-stop des poses 50 est également mobile verticalement par entrainement motorisé pour s'adapter au niveau d'accumulation des poses. La grille de réception non-stop des poses 50 de ce mode de réalisation n'assure pas la fonction d'encartage.The non-stop reception grid for the poses 50 comprises a plurality of longitudinal bars. It is movable in the longitudinal direction L between a retracted position in which it is located above the gripping device 13 and an extended position in the reception zone 2 of the pose reception station 500 for receiving the poses during the evacuation of the reception pallet 4. The non-stop reception grid for the poses 50 is also vertically movable by motorized drive to adapt to the level of accumulation of poses. The non-stop reception grid for the poses 50 of this embodiment does not provide the inserting function.

Il est également à noter que l'invention n'est pas limitée à une station de réception des poses 500 dans laquelle les points d'attache entre les poses sont séparés mais peut s'appliquer à une station de réception des poses réceptionnant des piles de feuilles pleines.It should also be noted that the invention is not limited to a pose reception station 500 in which the attachment points between the poses are separate but can be applied to a pose reception station receiving stacks of full sheets.

Claims (17)

  1. Insert-sheet pick-up device (13) for an insert-sheet loading device (10) of a station for receiving copy (500), the pick-up device (13) including a suction element (20) configured to pick up an insert sheet, wherein the pick-up device (13) includes a pivoting axis (30) and at least one telescopic arm (33) including a proximal arm (33a) one end of which is fixed to the pivoting axis (30) and a distal arm (33b), able to move with respect to the proximal arm (33a) and one end of which is pivot-articulated to the suction element (20) so as to move the suction element (20) between a raised position and a lowered position according to a vertical movement of the suction element (20).
  2. Pick-up device (13) according to the preceding claim, characterised in that the telescopic arm (33) is extended when it pivots in lowered position.
  3. Pick-up device (13) according to one of the preceding claims, characterised in that in the raised position, the telescopic arm (33) is in a position close to the horizontal.
  4. Pick-up device (13) according to one of the preceding claims, characterised in that it includes at least one element for controlling (36) the extending of the distal arm (33b) according to the pivoting angle of the pivoting axis (30), configured to cooperate with the distal arm (33b) of the telescopic arm (33).
  5. Pick-up device (13) according to the preceding claim, characterised in that the control element (36) includes a linear or curved guiding.
  6. Pick-up device (13) according to one of claims 4 or 5, characterised in that the control element (36) includes an inclined groove,
    - the positioning of the distal arm (33b) in a first position (39a) of the groove corresponding to a minimum extending of the telescopic arm (33) in the raised position,
    - the positioning of the distal arm (33b) in a second position (39b) of the groove corresponding to a maximum extending of the telescopic arm (33) in the lowered position, the telescopic arm (33) having pivoted by a predetermined maximum angle (α) between the first and the second position, and
    - the hypotenuse of a right-angle triangle of which one of the catheti (b) corresponds to the extension (a) of the telescopic arm (33) over said predetermined maximum angle (α) inscribed in said groove.
  7. Pick-up device (13) according to one of the preceding claims, characterised in that one of the arms among the distal arm (33b) and the proximal arm (33a) includes at least one oblong hole (34) with linear guiding, cooperating with at least one pin (35) carried by the other arm in order to modify the length of the telescopic arm (33).
  8. Pick-up device (13) according to one of the preceding claims, characterised in that the proximal arm (33a) includes a double wall that sandwiches the distal arm (33b).
  9. Pick-up device (13) according to one of the preceding claims, characterised in that the suction element (20) includes at least one pivoting suction head (23).
  10. Pick-up device (13) according to one of the preceding claims, characterised in that the suction element (20) includes a suction bar.
  11. Pick-up device (13) according to the preceding claim, characterised in that it includes two telescopic arms (33) of which the respective ends are articulated in pivoting with a respective end of the suction bar (20).
  12. Pick-up device (13) according to one of the preceding claims, characterised in that it includes at least one actuator (41) configured to drive the pivoting axis (30) in pivoting.
  13. Pick-up device (13) according to the preceding claim, characterised in that the actuator (41) is configured to automatically stop under the effect of a counter-force.
  14. Pick-up device (13) according to one of claims 12 or 13, characterised in that the actuator (41) is configured to displace a first end of a lever (42) of which a second end is fastened to the pivoting axis (30).
  15. Insert-sheet loading device (10; 10'), characterised in that it includes an insert-sheet pick-up device (13) according to one of the preceding claims.
  16. Copy-receiving station (500) of a machine for processing (1) elements in sheet form, characterised in that it includes an insert-sheet loading device (10; 10') according to the preceding claim.
  17. Machine for processing (1) elements in sheet form, characterised in that it includes a copy-receiving station (500) according to the preceding claim.
EP17703029.3A 2016-02-12 2017-02-07 Device for gripping insert sheets, loading device, station for receiving installations and machine for treating sheet-shaped elements Active EP3414198B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16020041 2016-02-12
PCT/EP2017/025021 WO2017137169A1 (en) 2016-02-12 2017-02-07 Insert-sheet pick-up device, loading device, copy-receiving station and machine for processing elements in sheet form

Publications (2)

Publication Number Publication Date
EP3414198A1 EP3414198A1 (en) 2018-12-19
EP3414198B1 true EP3414198B1 (en) 2020-05-06

Family

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EP17703029.3A Active EP3414198B1 (en) 2016-02-12 2017-02-07 Device for gripping insert sheets, loading device, station for receiving installations and machine for treating sheet-shaped elements

Country Status (8)

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US (1) US10913624B2 (en)
EP (1) EP3414198B1 (en)
JP (1) JP6790106B2 (en)
KR (1) KR102116625B1 (en)
CN (1) CN109071143B (en)
BR (1) BR112018015539B1 (en)
ES (1) ES2797086T3 (en)
WO (1) WO2017137169A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109702104A (en) * 2019-01-27 2019-05-03 泰珂力得精密部件(苏州)有限公司 A kind of feeding mechanism of plate
CN113120665B (en) * 2020-01-16 2024-07-19 四川卡库机器人科技有限公司 Sheet material receiving device and receiving method
CN115461274B (en) * 2020-03-18 2024-06-28 鲍勃斯脱梅克斯股份有限公司 Gripping system and method for inserting separator sheets in a container

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Publication number Priority date Publication date Assignee Title
JPS5326063A (en) 1976-06-14 1978-03-10 Kurisuchian Bunderuritsuhi Method and device for separating and piling sheets such as paper* thick paper* etc*
DE3211610C2 (en) * 1982-03-30 1985-04-18 Agfa-Gevaert Ag, 5090 Leverkusen Device for removing a sheet from a stack
DE3211609C2 (en) 1982-03-30 1987-05-07 Agfa-Gevaert Ag, 5090 Leverkusen Device for removing a sheet from a stack
US4566846A (en) * 1982-12-17 1986-01-28 Kliklok Corporation Carton transfer apparatus with effective constant length inverting arm
US5286016A (en) * 1992-09-16 1994-02-15 Brackett, Inc. Apparatus and method for inserting sheets into lapstream in a direction opposite to conveying direction
DE19516023B4 (en) * 1995-05-04 2004-03-18 Heidelberger Druckmaschinen Ag Device for stacking punched sheets
US5917930A (en) * 1996-07-31 1999-06-29 Currency Systems International Method for semi-continuous currency processing using separator cards
CN202449655U (en) * 2012-01-17 2012-09-26 天津长荣印刷设备股份有限公司 Paper paving device

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None *

Also Published As

Publication number Publication date
JP6790106B2 (en) 2020-11-25
BR112018015539B1 (en) 2023-04-11
US10913624B2 (en) 2021-02-09
CN109071143A (en) 2018-12-21
JP2019504808A (en) 2019-02-21
ES2797086T3 (en) 2020-12-01
KR20180110065A (en) 2018-10-08
US20190047807A1 (en) 2019-02-14
WO2017137169A1 (en) 2017-08-17
KR102116625B1 (en) 2020-05-29
BR112018015539A2 (en) 2018-12-26
CN109071143B (en) 2020-08-14
EP3414198A1 (en) 2018-12-19

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