EP3003703B1 - Processing unit of a continuous-strip support and machine for producing packaging provided therewith - Google Patents

Processing unit of a continuous-strip support and machine for producing packaging provided therewith Download PDF

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Publication number
EP3003703B1
EP3003703B1 EP14726326.3A EP14726326A EP3003703B1 EP 3003703 B1 EP3003703 B1 EP 3003703B1 EP 14726326 A EP14726326 A EP 14726326A EP 3003703 B1 EP3003703 B1 EP 3003703B1
Authority
EP
European Patent Office
Prior art keywords
arrangement
speed
unit according
station
sheeter
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
EP14726326.3A
Other languages
German (de)
French (fr)
Other versions
EP3003703A1 (en
Inventor
Lucio Giancaterino
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
Priority to EP14726326.3A priority Critical patent/EP3003703B1/en
Publication of EP3003703A1 publication Critical patent/EP3003703A1/en
Application granted granted Critical
Publication of EP3003703B1 publication Critical patent/EP3003703B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/16—Cutting webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2642—Means for adjusting the position of the cutting member for slotting cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
    • B26F1/3826—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work using a rotary circular cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/005—Making rigid or semi-rigid containers, e.g. boxes or cartons involving a particular layout of the machinery or relative arrangement of its subunits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/10—Feeding or positioning webs
    • B31B50/102—Feeding or positioning webs using rolls, belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B50/146—Cutting, e.g. perforating, punching, slitting or trimming using tools mounted on a drum

Definitions

  • the present invention relates to a unit for transforming a first continuous web support into a second support in the form of poses.
  • the invention also relates to a packaging production machine equipped with a continuous web support unit.
  • a packaging production machine is intended for the manufacture of boxes, which then form packaging, after folding and gluing.
  • a first initial planar support such as a continuous flat strip of cardboard, is unwound and is printed by a printing unit, itself constituted of subunits in the form of printing units.
  • the printed strip is then transferred to a processing unit producing in particular at least one of the following transformations, a cut in poses, a cut of the boxed poses, an embossing, an extrusion, an ejection of the waste.
  • a pose is composed of several boxes that can be attached to each other by attachment points constituting bridges of the same material as the pose and boxes.
  • the poses obtained are then separated into individual boxes.
  • the boxes are finally tabled, before being stacked in rows to form stacks in a receiving station and palletizing, for storage or transport out of the production machine.
  • All transformations are performed online in the transformation unit with successive transformation stations driven synchronously.
  • Each station comprises rotating cylinders arranged in pairs.
  • a rotary cylindrical upper tool most often the male tool, cooperates with precision with a cylindrical lower rotary tool, the female tool.
  • the band passes through the radial gap between the upper tool and the lower tool.
  • the conformation and the circumference of the tools are related to the type of transformation work to be performed.
  • the circumference is an integer multiple of the length of each box. This implies that each pair of tools is dedicated and can only be used for the transformation work for which it was designed.
  • a tool must be ordered well in advance, which becomes incompatible with the changes in production currently required.
  • a tool is very expensive and it becomes profitable only with an extremely important production.
  • the document US 3'926'097 describes a unit for performing transformations on a tape medium, making it possible to keep the same cylinders whatever the desired lengths of poses.
  • a first pair of tools forming a leaf cutter also known as “sheeter” performs a frontal cut, which allows the detachment of the pose with the rest of the band.
  • the unit then comprises at least one station transforming the pose that has just been separated, with its respective transformation tools, placed downstream of the cutter.
  • the tools of the cutter and the tools of transformation are obtained by bringing on a metal cylinder plates of machined steel sheet giving the shape of cut and male and / or female transformation.
  • the plates are wound and then attached to their respective cylinders by welding or magnetic fixation.
  • the strip is introduced into the unit through a loop control section feeding the same unit at a speed.
  • Cutter tools rotate at the same speed as transformation tools.
  • the plates of the cutter and the processing tool cover only an angular sector of the periphery of the rolls. Each pair of tools thus has an angular sector with which it performs its cutting or transformation operation and a non-active angular sector.
  • a pair of drive rollers is provided upstream of the cutter. These drive rollers are driven at a constant speed. These drive rollers rotate at a speed slightly greater than the maximum speed imparted to the web by the speed-controlled loop control section. This overspeed makes it possible to keep the tension of the web during the operation of the cutter.
  • a main object of the present invention is to develop a transformation unit for transforming a first continuous web medium into a second medium in the form of transformed poses.
  • a second objective is to achieve a unit transforming a continuous strip into poses of a determined length, using processing cylinders whose total development is greater than the length of a pose or the format of the boxes constituting a pose.
  • a third objective is to solve the technical problems mentioned for the unit of the state of the art. Another objective is to succeed in inserting a processing unit in a packaging production machine.
  • the transformation is defined, by way of non-exhaustive example, as a cutting, an extrusion, an embossing, a metallization by hot stamping, a collage of labels or holograms, an ejection of the previously cut waste, and more besides.
  • the upstream and downstream directions are defined by reference to the direction of travel of the support in the processing unit and in the packaging production machine.
  • the clocked speed of the second motorized arrangement imposes on the support the same clocked speed, which makes it possible to maintain and guide the support, before, during and after the cutting operation of the cutter.
  • the second motorized arrangement has an active role.
  • the second motorized arrangement holds the carrier, which is a continuous band, i.e. forming the first carrier, or which is a pose, i.e. forming the second carrier.
  • Speed modulation also makes it possible to adapt the speed of the support to that of the cutter at first and to that of the transformation tools in a second step.
  • the development of the conversion cylinders coincides with the repetition pitch of the printed pattern, ie the printed format of the poses.
  • the format of the tools is larger than the repetition of the printed format.
  • the carrier is defined, by way of non-exhaustive example, as being of a continuous strip material, such as paper, cardboard, corrugated board, laminated corrugated board, flexible plastic, for example polyethylene (PE ), polyethylene terephthalate (PET), bioriented polypropylene (BOPP), or other materials.
  • PE polyethylene
  • PET polyethylene terephthalate
  • BOPP bioriented polypropylene
  • a packaging production machine characterized in that it comprises a unit having one or more technical characteristics described below and claimed.
  • a processing unit of a support 1 is intended to ensure a transformation of a first support, in this case a continuous strip of cardboard 2.
  • the strip 2 enters the unit 1 by its transverse side upstream.
  • the unit 1 cuts and transforms the strip 2 and delivers a second support in the form of transformed poses 3, being consequently in flat cardboard.
  • the poses 3 leave the unit 1 by its transverse side downstream.
  • the direction of advance or scrolling (from left to right, Arrows F in the Figures) of the strip 2 and poses 3 in the longitudinal direction indicates the upstream direction and the downstream direction in unit 1.
  • a packaging production machine comprises the processing unit 1. Upstream of the processing unit 1, the packaging production machine (not visible in the Figures) has, for example, a roll-up device. coil, a printing unit with at least one printing unit, means for controlling the quality and the register. Lateral web guiding may be used to correct the lateral register of web 2 if necessary.
  • a traveling roller is intended to establish a constant tension of web 2.
  • the transformation unit 1 can first of all comprise upstream a first motorized drive arrangement 4 for driving the strip 2 in running rhythm in the longitudinal direction F.
  • the strip 2 arrives from the printing unit and of the printer group at constant speed.
  • the first motorized arrangement 4 can be a loop control or loop control arrangement.
  • the loop control arrangement may favorably include a traction system, i.e. a main drive roll 6, also known as "feathering drive". Associated with the main roll 6, the loop control arrangement may comprise a loop control, i.e. a satellite roll 7.
  • the main drive roll 6 is rotated and rotated (R arrow in Figure 3 ) on a main shaft 9 by means of an electric main drive motor.
  • the main shaft 9 and thus the main roller 6 are mounted substantially horizontally and perpendicularly to the direction of travel of the strip 2.
  • the main roller 6 thus continuously drives the strip 2 from upstream to downstream.
  • a pressure roller 8 holds the band 2 positioned against the traction system 6.
  • the first motorized arrangement 4 comprises an insertion roll 11, similar to a pressure roller, upstream guaranteeing the tension of the band 2 at the input.
  • the loop control is a satellite roller 7 mounted in parallel with the main roller 6.
  • the strip 2 is engaged between the main roller 6 and the satellite roller 7.
  • the strip 2 is held there, while being drivable.
  • the strip 2 forms a path that is approximately three-quarters of a turn of the main roll 6 and half of a turn of the satellite roll 7.
  • the satellite roller 7 is able to oscillate (Arrow O in Figures 1 and 3 ) around the main roller 6, from upstream to downstream, and vice versa from downstream to upstream. Two extreme positions of the satellite roll 7 are shown in dotted lines in Figure 1 .
  • the amplitude of the oscillations O determines the stored and accumulated band 2 lengths corresponding to the future poses 3.
  • the frequency of the oscillations O of the satellite roll 7 generates velocity variations of the band 2.
  • the band 2 passes cyclically from a constant speed at zero speed, and vice versa, from zero speed to constant speed. These variations of speed and therefore the frequency of the oscillations (O) are chosen as a function of the cutting speed and of the transformation which follows.
  • Examples for the first motorized arrangement 4 are known from the documents CH-602 462 , CH-618 660 , EP-742 170 and WO-2010/063 '353.
  • the processing unit 1 then comprises a cutter 12, cutting the strip 2 in successive poses 3.
  • the cutter 12 is positioned downstream of the first motorized arrangement 4.
  • the cutter 12 comprises an upper cutting tool 13 and a smooth lower tool 14, constituting a counter-tool, also known as an anvil.
  • the cutting tool 13 rotates at the same speed as the lower tool 14.
  • the two tools 13 and 14 are powered by one or two independent motors.
  • a rotational speed of the tools 13 and 14 of the cutter 12 is preferably constant and greater than the input speed of the band 2 in the unit 1.
  • a front cutting plate 16 is attached to the surface of the cylinder of the upper cutting tool 13.
  • the plate 16 is provided with cutting nets.
  • the plate 16 has a length substantially equal to the width of the strip 2.
  • the plate 16 with its threads extends over a sector of small angular dimension.
  • the nets have a zigzag shape which is a function of the shape of the front edge of the pose 3 and the rear edge of the previous pose.
  • the strip 2 is driven along the longitudinal direction F only when it comes into contact with the cutting plate 16.
  • the processing unit 1 also comprises a second motorized drive arrangement 17 for driving the band 2 in the longitudinal direction F.
  • This second motorized arrangement 17 can be positioned in the immediate vicinity, and can be positioned in this case in close proximity. and upstream of the cutter 12.
  • This second arrangement 17 may advantageously be interposed between the first motorized arrangement 4 and the cutter 12.
  • the second motorized arrangement 17 may preferably comprise a lower drive roller 18 rotated by an electric drive motor.
  • the second motorized arrangement 17 may also include upper bearing means of the band 2 against the driving roller 18. These bearing means may comprise a single or a series of upper pressing rollers 19.
  • the driving roller 18 and the upper pressing roller or rollers 19 form a gripper or pinch system, which allows to maintain and guide the strip 2. This strip 2 is engaged, maintained, pinched and driven between the drive roller 18 and the pressure rollers 19.
  • the second motorized arrangement 17 may be of the type described in the document WO-2010/066 '325.
  • the unit 1 then comprises at least one station for transforming poses 3 with rotating tools.
  • at least one station for transforming poses 3 with rotating tools In the three embodiments shown in the Figures 1 to 3 , 6 , 7 , 9 and 10 three stations 21, 22 and 23 are used. The three stations 21, 22 and 23 are arranged in line, one after the other, the poses 3 being transformed successively.
  • a first processing station may be an embossing station 21 for embossing the poses 3.
  • the embossing station 21 is positioned downstream of the cutter 12.
  • the embossing station 21 comprises a male upper embossing tool 24 and a tool
  • the upper embossing tool 24 rotates at the same speed as the lower embossing tool 26.
  • the two embossing tools 24 and 26 are motorized.
  • a male embossing plate 27 is attached to the surface of the cylinder of the upper embossing tool 24.
  • the plate 27 is provided with a male embossing die whose conformation corresponds to the layout of the pose 3 and the desired embossed boxes.
  • the plate 27 with its male matrix extends over all or part of the surface of the cylinder of the upper embossing tool 24.
  • a female embossing plate (not shown) is attached to the surface of the cylinder of the lower embossing tool 26.
  • the female embossing plate is provided with a female embossing die whose conformation is complementary to the male embossing die and corresponds to the layout of the pose and the desired embossed boxes.
  • the plate with its female matrix also extends over an angular sector of dimensions substantially equal to that of the male plate 27.
  • the band 2 is driven in the longitudinal direction F only when it comes into contact with the male embossing plates and female 27.
  • a second processing station may be a crushing and cutting station 22, to perform a creasing of the folds of the poses 3, to cut the poses 3 and thus obtain the boxes.
  • the crushing and cutting station 22 is positioned downstream of the embossing station 21.
  • the creasing and cutting station 22 comprises a male upper crimping and cutting tool 28 and a crimping tool.
  • the upper crushing and cutting tool 28 rotates at the same speed as the lower crushing and cutting tool 29.
  • the two crushing and cutting tools 28 and 29 are motorized.
  • a crimping and cutting plate 31 is fixed to the surface of the cylinder of the upper crushing and cutting tool 28.
  • the crushing and cutting plate 31 is provided with both a crushing die and a crimping die. male cutting threads whose conformation corresponds to the layout of the pose 3 and the desired pressed and cut boxes.
  • the plate 31 with its matrix and its male threads extends over all or part of the surface of the cylinder of the upper pressing and cutting tool 28.
  • a female upset plate (not shown) is attached to the surface of the cylinder of the upset and lower cutter 29.
  • the female backing plate is provided with a female upset die whose conformation is complementary to the male upsetting die and corresponds to the layout of the pose and the boxes repressed and cut desired.
  • the plate with its female matrix also extends over a sector of dimensions substantially equal to that of the male plate 31.
  • the band 2 is driven in the longitudinal direction F only when it comes into contact with the upset and cutting plates male and female 31.
  • a third processing station may be a waste ejection station 23, making it possible to eject the waste areas present on the poses 3 and thus obtain the boxes.
  • the ejection station 23 is positioned downstream of the upsetting and cutting station 22.
  • the ejection station 23 comprises an upper ejection tool 32 and a lower ejection tool 33.
  • the upper ejection tool 32 rotates at the same speed as the lower ejection tool 33.
  • the two ejection tools 32 and 33 are motorized.
  • An ejection sector 34 is attached to the surface of the cylinder of the lower ejection tool 33.
  • the sector 34 is provided with a series of radial needles which are able to sink into each cut waste.
  • the needles separate the waste from the laying 3 by dragging them with the rotation of this lower needle tool 33.
  • the needles are positioned on the sector 34 and thus on the lower tool 33 according to the layout of the pose 3 and boxes desired cuts.
  • the sector 34 with its needles extends over all or part of the surface of the cylinder of the upper ejection tool 32.
  • Holes are provided at different locations over the entire surface of the upper ejector tool 32.
  • the holes can be drilled directly into the metallic cylindrical body of the upper ejector tool 32.
  • the holes can be drilled in a hole. vulcanized rubber-like flexible coating covering the surface of the cylinder of the upper ejection tool 32.
  • the holes can be drilled in a plate then attached to the surface of the cylinder of the upper ejection tool 32 or directly on the cylinder in the simplest cases.
  • the position of the holes corresponds to the layout of the pose 3 and the desired cut boxes and therefore to that of the needles of the lower tool 33. These needles are housed in the holes during the rotation of the two tools 32 and 33, so to pierce the waste.
  • the upper tools 32 and lower 33 transport the poses 3 and their maintenance when stitching waste.
  • the processing station or stations is a cutting station 22 of the poses 3 in boxes, and / or an embossing station 21 of the poses 3, and / or a depiling station 22 of the poses 3 and / or an ejection station 23 garbage.
  • the first processing station, ie embossing station 21 is optional depending on the type of boxes desired.
  • the same station may also include both an embossing tool and a crushing tool.
  • One station may be specifically dedicated to the upsetting and another additional station may be dedicated to cutting.
  • a station may include an upper cutting tool cooperating with a lower ejection tool.
  • the laying 3 cut into boxes simply attached by attachment points in the cutting station and upsetting 22 is more fragile.
  • the laying 3 is maintained for its transport to the waste ejection station 23.
  • a first belt-type conveyor 36 and / or vacuum belt may be interposed between the cutting and crushing station 22 and the ejection station 23.
  • the pose 3 cut into boxes simply attached by attachment points and without waste out of the waste ejection station 23 is more fragile.
  • the laying 3 is maintained for its transport outside the processing unit 1.
  • a second belt-type conveyor 37 and / or vacuum belt may be positioned downstream of the waste ejection station 23.
  • the packaging production machine can have a separator of poses, positioned downstream of the waste ejection station 23 and therefore downstream of the waste unit. transformation 1.
  • the poses 3 are separated into individual boxes.
  • the diameter of the upper tools 24, 28 and 32 and lower 26, 29 and 33 is provided large enough to have a large development. All the tools 24, 26, 28, 29, 32 and 33 have an equal developed which corresponds to the maximum possible length for the poses 3. The possibility of transforming poses 3 having different lengths depends on the angular sector and therefore the length of the selected plates 27, 31 and 34.
  • the rotary tools of the cutter 12 and / or the rotary tools of the processing station or processing stations 21, 22 and 23 are mounted in a cassette.
  • a cassette With a cassette, the operator will be able to change the tools outside the station, and thus outside the packaging production machine.
  • the cassette allows the operator to easily prepare the station for the next job, as needed, i.e. according to the layout of the poses and / or boxes, while having a production in progress.
  • the cassette comprises two upper bearings now for rotation the upper tool 13 or 24 or 28 or 32 respectively fixed to two lower bearings now for rotation the lower tool 14 or 26 or 29 or 33.
  • the removable cassette is suitable for insertion into a frame of the transformation station, to be fixed to the frame. And conversely, the removable cassette is able to be detached and to be extracted from this frame.
  • a rotational speed of the tools 24, 26, 28, 29, 32 and 33 of the processing station or stations 21, 22 and 23 is preferably constant and greater than the input speed of the band 2 in the unit 1.
  • the speed of the web 2 is always adjusted to be adapted to the constant angular velocity of the tools of the cutter 12 and the processing station or stations 21, 22 and 23.
  • the second motorized arrangement 17 has a variable speed profile for the support, here the band 2.
  • the second motorized arrangement 17 is thus a modulated introduction roller.
  • the Figure 4 relates to the speed profile 38 and the acceleration 39 of the second arrangement 17 for a minimum laying length 3.
  • Figure 5 relates to the speed profile 41 and the acceleration 42 of the second arrangement 17 for a maximum laying length 3.
  • Figure 1 shows the relative position of the loop control 4 and tools 24, 26, 28, 29, 32 and 33 when the cutting tool 13 of the cutter 12 has just finished cutting the strip 2.
  • the loop control 4 begins to move back in order to accumulate the band 2 coming from the printing unit and keep it momentarily before sending it to the cut.
  • a determined strip length 2 is accumulated upstream of the second arrangement 17. This strip length 2 is a function of the difference in length between the length of the laying 3 and the developed circumference of the tools 26, 27, 28, 29, 32 and 33.
  • FIG. 1 shows the relative position of the loop control 4 and the tools 24, 26, 28, 29, 32 and 33 when the cutting tool 13 of the cutter 12 is about 30 ° before cutting the strip 2.
  • the loop control 4 begins to advance in order to accelerate the band 2 at the same speed as that of the cutting tool 13.
  • the band 2 is discharged downstream of the second arrangement 17.
  • a third phase 46 the tangential speed of the second motorized arrangement 17 is constant, and is substantially equal to the speed of rotation of the tools 13 and 14 of the cutter 12. The cut is made during this third phase.
  • the Figure 3 shows the cutting tool 13 of the cutter 12 in position to finish its cut of the strip 2. At this moment, the speed of the strip 2 must be the same as the tangential speed of the tools 24, 26, 28, 29 , 32 and 33.
  • the transformation unit 47 may first comprise a first motorized drive arrangement 48 upstream.
  • the belt 2 arrives from the printing unit and the printer unit at a constant speed.
  • the first arrangement 48 can cause the strip 2 to scroll at a constant speed in the longitudinal direction F.
  • the first arrangement 48 is substantially mechanically analogous to the second arrangement 17 described for the first embodiment of the invention.
  • the cut sheet 12 of the second embodiment is mechanically identical to that described for the first embodiment of the invention.
  • a rotation speed of the tools 13 and 14 of the cutter 12 is preferably modulated.
  • the speed of the tools 13 and 14 is constant and must be substantially identical to that of the band 2 at the time of the frontal cut, due to the small angular dimension of the plate 16.
  • the speed of the tools 13 and 14 is variable with acceleration and deceleration in the remainder of the perimeter, to ensure synchronization in position with the next pose.
  • the transformation unit 47 also comprises a second motorized drive arrangement 49 for driving the support, ie the strip 2 and the laying 3, in the longitudinal direction F.
  • This second arrangement 49 can be positioned in the immediate vicinity, and can be positioned in this case near and downstream of the cutter 12. This second arrangement 49 may advantageously be inserted between the cutter 12 and the first of the processing stations 21.
  • the second arrangement 49 is substantially mechanically similar to the second arrangement 17 described for the first embodiment of the invention.
  • the second arrangement 49 can thus be mechanically similar to the first arrangement 48.
  • the support i.e. the band 2 and the pose 3, is engaged, maintained, pinched and driven between the lower drive roller 18 and the upper pressure rollers 19.
  • the three transformation stations 21, 22 and 23 of the second embodiment are identical to those described for the first embodiment of the invention.
  • the packaging production machine may have a positron separator, positioned downstream of the waste ejection station 23 and therefore downstream of the waste unit. transformation 47.
  • the poses 3 are separated into individual boxes.
  • the second motorized arrangement 49 has a variable speed profile for the support, here the band 2 and the pose 3.
  • the second motorized arrangement 49 is thus a modulated output roller.
  • the Figure 8 relates to the speed profile 51 and the acceleration 52 of the second arrangement 49.
  • a first phase of increasing the speed 53 of the second arrangement 49 is performed after the last cut by the cutter 12, due to the position of the second arrangement 49.
  • the laying 3 just cut is accelerated and driven by the second arrangement 49 to reach the same speed 54 as the tools 24, 26, 28, 29, 32 and 33 of the processing stations 21, 22 and 23.
  • An interval G is thus generated between the band 2 arriving for the next pose and the pose 3 having just been cut.
  • the maximum gap required G coincides with the difference between the length of the pose 3 and the circumference of the tools 24, 26, 28, 29, 32 and 33.
  • a second phase of decreasing the speed 56 of the second arrangement 49 is performed before the next cut by the cutter 12.
  • a length determined band 2 is accumulated upstream of the second arrangement 49.
  • This band length 2 is a function of the difference in length between the length of the pose 3 and the developed circumference of the tools 26, 27, 28, 29, 32 and 33.
  • a third phase 57 the tangential speed of the second arrangement 49 is constant, and is substantially equal to the speed of rotation of the tools 13 and 14 of the cutter 12. The cut is made during this third phase 57.
  • the first arrangement 48 and the cutter 12 are mounted longitudinally movable (L-shaped arrow Figures 6 and 7 ), for example in a frame 58 sliding on rails 59, so as to vary the distance between the cutter 12 and the processing station 21, depending on the desired length for the poses 3.
  • the Figure 7 specifically shows the configuration for the maximum length of the pose 3.
  • the frame 58 is found in its most extreme position to the left of the Figure 7 the space between the frame 58 and the second arrangement 49 or the first transformation station 21 is the most open.
  • the processing unit 61 may first include a first motorized drive arrangement 48 upstream.
  • the web 2 arrives from the printing unit and the printer unit at a constant speed.
  • the first arrangement 48 is substantially mechanically similar to the first arrangement 48 described for the second embodiment of the invention and the second arrangement 17 described for the first embodiment of the invention.
  • the first arrangement 48 can cause the strip 2 to scroll at constant speed in the longitudinal direction F.
  • the cutter 12 of the third embodiment is mechanically identical to that described for the first and second embodiments of FIG. the invention.
  • a rotational speed of the tools 13 and 14 of the cutter 12 is preferably modulated.
  • the transformation unit 61 also comprises a second motorized drive arrangement 62 for driving the support, ie the band 2 and the laying 3, in the longitudinal direction F.
  • This second arrangement 62 can be positioned in the immediate vicinity, and can be positioned in this case near and downstream of the cutter 12.
  • This second arrangement 62 can advantageously be inserted between the cutter 12 and the first of the processing stations 21.
  • the second arrangement 62 is mechanically substantially similar to the second drive arrangement 17 described for the first embodiment of the invention and the first motorized arrangement 48.
  • the support, ie the band 2 and the laying 3, is engaged, maintained, pinched and driven between the lower drive roller 18 and the upper pinch rollers 19.
  • the three transformation stations 21, 22 and 23 of the third embodiment are identical to those described for the first and second embodiments of the invention.
  • the packaging production machine can have a separator poses, positioned downstream of the waste ejection station 23 and therefore downstream of the unit The poses 3 are separated therein into individual boxes.
  • the transformation unit 61 may preferably also comprise a third motorized arrangement 63 for driving the support, ie the strip 2 and the laying 3, in the longitudinal direction F.
  • This third arrangement 63 can be positioned at immediate proximity, and can be positioned in this case near and downstream of the cutter 12.
  • This third arrangement 63 may advantageously be inserted between the cutter 12 and the second arrangement 62.
  • the third arrangement 63 is mechanically substantially similar to the second arrangement 17 described for the first embodiment of the invention.
  • the third arrangement 63 can thus be mechanically similar to the first arrangement 48 and the second arrangement 62.
  • the support, ie the strip 2 and the installation 3 is engaged, held and driven between the lower drive roller 18 and the upper pressure rollers 19.
  • the second arrangement 62 is mounted longitudinally mobile (Arrow T in Figure 10 ). This makes it possible to vary the distance between the second arrangement 62 and the cutter 12, depending on the length of the laying 3 or the band 2 constituting the future pose.
  • the first arrangement 48 and the sheet-cutter 12 are stationary mounted, for example in a frame 58 fixed on a base 64.
  • the Figure 10 shows specifically the configuration for the maximum length of the pose 3.
  • the third arrangement 63 is thereby able to be disconnected. Its inactivation is done for example by lifting (Arrow U in Figure 10 ) the pressure rollers 19, and lowering (Arrow D in Figure 10 ) the drive roller 18, which allows to separate them from the band 2. This allows to have only the second arrangement 62 in active drive, which is a function of the length of the pose 3 or the strip 2 constituting the future pose.
  • the second motorized arrangement 62 and / or the third arrangement 63 have a variable speed profile for the support, here the band 2 and the laying 3.
  • the Figure 8 relates to the speed profile 51 and the acceleration 52 of the second arrangement 62 and / or the third arrangement 63.
  • a first step of increasing the speed 53 of the second arrangement 62 and / or the third arrangement 63 is performed after the last cut by the cutter 12, due to the position of the second arrangement 62 and / or the third arrangement 63.
  • the laying 3 having just been cut is accelerated and driven by the second arrangement 62 and / or by the third arrangement 63 to reach the same speed 54 as that of the tools 24, 26, 28, 29, 32 and 33 of the transformation stations. 21, 22 and 23.
  • a gap G is thus generated between the band 2 arriving for the next pose and the pose 3 just cut.
  • the maximum gap required G coincides with the difference between the length of the pose 3 and the circumference of the tools 24, 26, 28, 29, 32 and 33.
  • a second phase of decreasing the speed 56 of the second arrangement 62 and / or the third arrangement 63 is performed before the next section by the cutter 12, because of the position of the second arrangement 62 and / or the third arrangement 63.
  • a determined strip length 2 is accumulated upstream of the second arrangement 49.
  • This strip length 2 is a function of the difference in length between the length of the laying 3 and the developed circumference. tools 26, 27, 28, 29, 32 and 33.
  • a third phase 57 the tangential speed of the second arrangement 62 and / or the third arrangement 63 is constant, and is substantially equal to the speed of rotation of the tools 13 and 14 of the cutter 12. The cut is made during this third phase 57.
  • the present invention relates to three technical solutions for realizing the transformation unit 1, 47 and 61 which, from the continuous web support 2, make it possible to arrive at a support in the form of pose 3.
  • the three solutions aim at guaranteeing a constant rotation speed of the processing tools 21, 22 and 23 which carry the knives or the other transformation elements such as crushing, embossing or ejection of the waste, despite the fact that the format of these tools is generally larger than the repetition of the printed format.

Description

La présente invention concerne une unité pour transformer un premier support en bande continue en un deuxième support sous forme de poses. L'invention se rapporte également à une machine de production d'emballages équipée avec une unité de transformation d'un support en bande continue.The present invention relates to a unit for transforming a first continuous web support into a second support in the form of poses. The invention also relates to a packaging production machine equipped with a continuous web support unit.

Une machine de production d'emballages est destinée à la fabrication de boîtes, qui forment ensuite des emballages, après pliage et collage. Dans cette machine, un premier support plan initial, tel qu'une bande continue plane de carton, est déroulé et est imprimé par une unité d'impression, constituée elle-même de sous-unités sous la forme de groupes imprimeurs.A packaging production machine is intended for the manufacture of boxes, which then form packaging, after folding and gluing. In this machine, a first initial planar support, such as a continuous flat strip of cardboard, is unwound and is printed by a printing unit, itself constituted of subunits in the form of printing units.

La bande imprimée est ensuite transférée dans une unité de transformation réalisant notamment au moins une des transformations suivante, une coupe en poses, une découpe des poses en boîtes, un gaufrage, un refoulage, une éjection des déchets. Une pose est composée de plusieurs boîtes qui peuvent être rattachées entre elles par des points d'attache constituant des ponts de même matière que la pose et les boîtes.The printed strip is then transferred to a processing unit producing in particular at least one of the following transformations, a cut in poses, a cut of the boxed poses, an embossing, an extrusion, an ejection of the waste. A pose is composed of several boxes that can be attached to each other by attachment points constituting bridges of the same material as the pose and boxes.

Les poses obtenues sont ensuite séparées en boîtes individualisées. Les boîtes sont enfin mises en nappes, avant d'être empilées par rangées pour former des piles dans une station de réception et de palettisation, en vue de leur stockage ou de leur transport hors de la machine de production.The poses obtained are then separated into individual boxes. The boxes are finally tabled, before being stacked in rows to form stacks in a receiving station and palletizing, for storage or transport out of the production machine.

Toutes les transformations sont réalisées en ligne dans l'unité de transformation avec des stations de transformation successives entraînées de manière synchrone. Chaque station comprend des cylindres rotatifs disposés par paires. Un outil supérieur cylindrique rotatif, le plus souvent l'outil mâle, coopère avec précision avec un outil inférieur cylindrique rotatif, l'outil femelle. La bande passe à travers l'intervalle radial situé entre l'outil supérieur et l'outil inférieur.All transformations are performed online in the transformation unit with successive transformation stations driven synchronously. Each station comprises rotating cylinders arranged in pairs. A rotary cylindrical upper tool, most often the male tool, cooperates with precision with a cylindrical lower rotary tool, the female tool. The band passes through the radial gap between the upper tool and the lower tool.

La conformation et la circonférence des outils sont liées au type de travail de transformation à effectuer. La circonférence est un multiple entier de la longueur de chaque boite. Cela implique que chaque paire d'outils est dédié et n'est utilisable que pour le travail de transformation pour lequel il a été conçu.The conformation and the circumference of the tools are related to the type of transformation work to be performed. The circumference is an integer multiple of the length of each box. This implies that each pair of tools is dedicated and can only be used for the transformation work for which it was designed.

Un outil doit être commandé longtemps à l'avance, ce qui devient incompatible avec les changements de productions demandés actuellement. De plus, un outil est très coûteux et il ne devient rentable qu'avec une production extrêmement importante.A tool must be ordered well in advance, which becomes incompatible with the changes in production currently required. In addition, a tool is very expensive and it becomes profitable only with an extremely important production.

Etat de la techniqueState of the art

Le document US- 3'926'097 décrit une unité pour réaliser des transformations sur un support en bande, permettant de garder les mêmes cylindres quelles que soient les longueurs de poses souhaitées. Une première paire d'outils formant un coupe-feuille, également connu sous la dénomination de « sheeter », réalise une coupe frontale, ce qui permet le détachement de la pose avec le reste de la bande. L'unité comprend ensuite au moins une station transformant la pose venant d'être séparée, avec ses outils de transformation respectifs, placée en aval du coupe-feuille.The document US 3'926'097 describes a unit for performing transformations on a tape medium, making it possible to keep the same cylinders whatever the desired lengths of poses. A first pair of tools forming a leaf cutter, also known as "sheeter", performs a frontal cut, which allows the detachment of the pose with the rest of the band. The unit then comprises at least one station transforming the pose that has just been separated, with its respective transformation tools, placed downstream of the cutter.

Les outils du coupe-feuille et les outils de transformation sont obtenus en rapportant sur un cylindre métallique des plaques de tôle d'acier usinées donnant la forme de coupe et de transformation mâle et/ou femelle. Les plaques sont enroulées et ensuite fixées à leurs cylindres respectifs par soudage ou par fixation magnétique.The tools of the cutter and the tools of transformation are obtained by bringing on a metal cylinder plates of machined steel sheet giving the shape of cut and male and / or female transformation. The plates are wound and then attached to their respective cylinders by welding or magnetic fixation.

Cette solution avec des plaques est moins coûteuse et plus rapide à mettre en oeuvre lorsqu'il s'agit d'effectuer le changement de travail pour transformer de nouvelles poses. Les cylindres ne sont pas démontés à chaque changement de travail de transformation. Les cylindres servent uniquement de support pour de nombreuses plaques dédiées à chacun des travaux de transformation envisagés. Comparées au cylindres, les plaques sont plus légères et ainsi plus facile à manipuler pour les opérateurs. Cette solution associe les cadences obtenues grâce à l'alimentation ininterrompue de la transformation rotative en bande avec la souplesse des outils de la transformation avec presse à platine.This solution with plates is cheaper and faster to implement when it comes to the change of work to transform new poses. Cylinders are not disassembled at each change of transformation job. The cylinders serve only as support for many plates dedicated to each of the transformation work envisaged. Compared to the cylinders, the plates are lighter and thus easier to handle for the operators. This solution associates the rates obtained thanks to the uninterrupted supply of the rotary transformation in band with the flexibility of the tools of the transformation with platinum press.

Pour obtenir le détachement de la pose, la bande est introduite dans l'unité grâce à une section à commande de boucle alimentant cette même unité à vitesse cadencée. Les outils du coupe-feuille tournent à la même vitesse que les outils de transformation. Les plaques du coupe-feuille et de l'outil de transformation ne couvrent qu'un secteur angulaire de la périphérie des cylindres. Chaque paire d'outils présente ainsi un secteur angulaire avec lequel il effectue son opération de coupe ou de transformation et un secteur angulaire non actif.To obtain the detachment of the pose, the strip is introduced into the unit through a loop control section feeding the same unit at a speed. Cutter tools rotate at the same speed as transformation tools. The plates of the cutter and the processing tool cover only an angular sector of the periphery of the rolls. Each pair of tools thus has an angular sector with which it performs its cutting or transformation operation and a non-active angular sector.

Une paire de rouleaux d'entraînement est prévue en amont du coupe-feuille. Ces rouleaux d'entraînement sont entraînés à une vitesse constante. Ces rouleaux d'entraînement tournent à une vitesse égale légèrement supérieure à la vitesse maximale conférée à la bande par la section à commande de boucle à vitesse cadencée. Cette survitesse permet de garder la tension de la bande pendant le fonctionnement du coupe-feuille.A pair of drive rollers is provided upstream of the cutter. These drive rollers are driven at a constant speed. These drive rollers rotate at a speed slightly greater than the maximum speed imparted to the web by the speed-controlled loop control section. This overspeed makes it possible to keep the tension of the web during the operation of the cutter.

Cependant, il existe des risques que les rouleaux d'entraînement patinent sur la surface de la bande. La surface imprimée ou la laque sur la surface de la bande va s'abimer ou le matériau constituant la bande va se déchirer. De plus, en raison de la vitesse trop importante des rouleaux d'entraînement lorsque la vitesse de la section à commande de boucle est à son minimum, la bande est régulièrement en surtension, ce qui peut modifier son élasticité. Ceci engendre des pertes de registre entre l'impression et la coupe et la ou les transformations ultérieures.However, there is a risk that the drive rollers will slip on the surface of the belt. The printed surface or lacquer on the surface of the strip will become damaged or the material constituting the strip will tear. In addition, due to the excessive speed of the drive rollers when the speed of the loop control section is at its minimum, the band is regularly overvoltage, which can change its elasticity. This leads to loss of register between printing and cutting and the subsequent transformation or transformations.

Exposé de l'inventionPresentation of the invention

Un objectif principal de la présente invention consiste à mettre au point une unité de transformation pour transformer un premier support en bande continue en un deuxième support sous forme de poses transformées. Un deuxième objectif est de réaliser une unité transformant une bande continue en poses d'une longueur déterminée, en utilisant des cylindres de transformation dont le développement total est plus grand que la longueur d'une pose ou que le format des boites constituant une pose. Un troisième objectif est de résoudre les problèmes techniques mentionnés pour l'unité de l'état de la technique. Un autre objectif encore est celui de réussir à insérer une unité de transformation dans une machine de production d'emballage.A main object of the present invention is to develop a transformation unit for transforming a first continuous web medium into a second medium in the form of transformed poses. A second objective is to achieve a unit transforming a continuous strip into poses of a determined length, using processing cylinders whose total development is greater than the length of a pose or the format of the boxes constituting a pose. A third objective is to solve the technical problems mentioned for the unit of the state of the art. Another objective is to succeed in inserting a processing unit in a packaging production machine.

Une unité de transformation est utilisée pour transformer un premier support en bande continue en un deuxième support sous forme de poses transformées ayant une longueur prédéterminée. La bande continue présente une vitesse d'entrée dans l'unité de transformation qui est constante. L'unité de transformation comprend:

  • un premier agencement motorisé pour réaliser un premier entraînement en défilement du premier support en bande continue,
  • un coupe-feuille à outils rotatifs pour réaliser une coupe du premier support en bande continue en deuxième support sous forme de poses,
  • un deuxième agencement motorisé pour réaliser un deuxième entraînement en défilement du support, positionné à proximité immédiate du coupe-feuille à outils rotatifs, et
  • au moins une station à outils rotatifs pour réaliser une transformation du deuxième support sous forme de poses en poses transformées.
A transform unit is used to transform a first continuous web medium into a second medium in the form of transformed poses having a predetermined length. The continuous band has a rate of entry into the processing unit that is constant. The processing unit includes:
  • a first motorized arrangement for carrying out a first running drive of the first continuous web support,
  • a rotary tool cutter for cutting the first continuous web carrier into a second carrier in the form of a poses,
  • a second motorized arrangement for performing a second drive running the support, positioned in the immediate vicinity of the rotary tool cutter, and
  • at least one rotary tool station for performing a transformation of the second support in the form of poses into transformed poses.

Conformément à un aspect de la présente invention, l'unité de transformation est caractérisée en ce qu'une vitesse de rotation du deuxième agencement motorisé varie au cours d'un cycle de rotation des outils rotatifs du coupe-feuille, en présentant:

  • une phase à vitesse tangentielle constante, sensiblement égale à la vitesse de rotation des outils rotatifs du coupe-feuille; pendant cette phase à vitesse tangentielle constante, la coupe du premier support en bande continue est réalisée par le coupe-feuille;
  • une phase de diminution de la vitesse; pendant cette phase de diminution de la vitesse, une longueur du premier support en bande continue est conservée en amont du deuxième agencement motorisé; cette longueur du premier support en bande continue est fonction de la différence entre la longueur prédéterminée de la pose et un développé ou la circonférence totale des outils de transformation, et
  • une phase d'augmentation de la vitesse; pendant cette phase d'augmentation de la vitesse, le support est évacué en aval du deuxième agencement motorisé.
According to one aspect of the present invention, the processing unit is characterized in that a rotational speed of the second motorized arrangement varies during a rotational cycle of the rotary cutter tools, exhibiting:
  • a phase with a constant tangential speed, substantially equal to the speed of rotation of the rotary tools of the cutter; during this phase at constant tangential speed, the cutting of the first support in continuous strip is performed by the cut sheet;
  • a phase of decrease in speed; during this phase of decreasing the speed, a length of the first continuous web support is maintained upstream of the second motorized arrangement; this length of the first continuous web support is a function of the difference between the predetermined length of the laying and a developed or the total circumference of the transformation tools, and
  • a phase of increasing the speed; during this phase of increasing the speed, the support is evacuated downstream of the second motorized arrangement.

La transformation est définie, à titre d'exemple non exhaustif, comme étant une découpe, un refoulage, un gaufrage, une métallisation par estampage à chaud, un collage d'étiquettes ou d'hologrammes, une éjection des déchets découpés au préalable, et d'autres encore. Les sens amont et aval sont définis par référence au sens de défilement du support dans l'unité de transformation et dans la machine de production d'emballage.The transformation is defined, by way of non-exhaustive example, as a cutting, an extrusion, an embossing, a metallization by hot stamping, a collage of labels or holograms, an ejection of the previously cut waste, and more besides. The upstream and downstream directions are defined by reference to the direction of travel of the support in the processing unit and in the packaging production machine.

Autrement dit, la vitesse cadencée du deuxième agencement motorisé impose au support la même vitesse cadencée, ce qui permet de maintenir et de guider le support, avant, pendant et après l'opération de coupe du coupe-feuille. Le deuxième agencement motorisé possède rôle actif. Le deuxième agencement motorisé tient le support, qui est une bande continue, i.e. formant le premier support, ou qui est une pose, i.e. formant le deuxième support. La modulation de vitesse permet aussi d'adapter la vitesse du support à celle du coupe feuille dans un premier temps et à celle des outils de transformation dans un deuxième temps.In other words, the clocked speed of the second motorized arrangement imposes on the support the same clocked speed, which makes it possible to maintain and guide the support, before, during and after the cutting operation of the cutter. The second motorized arrangement has an active role. The second motorized arrangement holds the carrier, which is a continuous band, i.e. forming the first carrier, or which is a pose, i.e. forming the second carrier. Speed modulation also makes it possible to adapt the speed of the support to that of the cutter at first and to that of the transformation tools in a second step.

Lorsqu'un ou plusieurs groupes imprimeurs sont placés avant l'unité de transformation, et pour la plus grande partie des machines de l'état de la technique, le développement des cylindres de transformation coïncide avec le pas de répétition du motif imprimé, i.e. le format imprimé des poses. Dans la présente invention, le format des outils est plus grand que la répétition du format imprimé.When one or more printing units are placed before the processing unit, and for most of the machines of the state of the art, the development of the conversion cylinders coincides with the repetition pitch of the printed pattern, ie the printed format of the poses. In the present invention, the format of the tools is larger than the repetition of the printed format.

Le support est défini, à titre d'exemple non exhaustif, comme étant en un matériau en bande continue, tel que du papier, du carton plat, du carton ondulé, du carton ondulé contrecollé, du plastique flexible, par exemple du polyéthylène (PE), du polyéthylène téréphtalate (PET), du polypropylène biorienté (BOPP), ou d'autres matériaux encore.The carrier is defined, by way of non-exhaustive example, as being of a continuous strip material, such as paper, cardboard, corrugated board, laminated corrugated board, flexible plastic, for example polyethylene (PE ), polyethylene terephthalate (PET), bioriented polypropylene (BOPP), or other materials.

Selon un autre aspect encore de l'invention, une machine de production d'emballages, caractérisée en ce qu'elle comprend une unité présentant une ou plusieurs caractéristiques techniques décrites ci-dessous et revendiquées.According to yet another aspect of the invention, a packaging production machine, characterized in that it comprises a unit having one or more technical characteristics described below and claimed.

Brève description des dessinsBrief description of the drawings

L'invention sera bien comprise et ses divers avantages et différentes caractéristiques ressortiront mieux lors de la description suivante, de l'exemple non limitatif de réalisation, en référence aux dessins schématiques annexés, dans lesquels:

  • la Figure 1 représente une vue latérale synoptique d'une unité de transformation d'un support selon une première forme de réalisation de l'invention;
  • les Figures 2 et 3 représentent des vues respectives de l'unité de la Figure 1, avec différentes positions des outils du coupe-feuille et de la station de transformation;
  • les Figures 4 et 5 représentent des courbes de vitesse en fonction du cycle de rotation du coupe-feuille pour la première forme de réalisation, et respectivement pour une première et une deuxième longueur de pose;
  • les Figures 6 et 7 représentent des vues latérale synoptique respectives d'une unité de transformation d'un support selon une deuxième forme de réalisation de l'invention pour une première et une deuxième longueur de pose;
  • la Figure 8 représente une courbe de vitesse en fonction du cycle de rotation du coupe-feuille, pour la deuxième forme de réalisation; et
  • les Figures 9 et 10 représentent une vue latérale synoptique d'une unité de transformation d'un support selon une troisième forme de réalisation de l'invention pour une première et une deuxième longueur de pose.
The invention will be better understood and its various advantages and different characteristics will become more apparent in the following description, of the nonlimiting exemplary embodiment, with reference to the appended diagrammatic drawings, in which:
  • the Figure 1 represents a synoptic side view of a support processing unit according to a first embodiment of the invention;
  • the Figures 2 and 3 represent respective views of the unity of the Figure 1 , with different positions of the cutter and processing station tools;
  • the Figures 4 and 5 represent velocity curves as a function of the rotation cycle of the leaf cutter for the first embodiment, and respectively for a first and a second laying length;
  • the Figures 6 and 7 show respective synoptic side views of a carrier processing unit according to a second embodiment of the invention for first and second laying lengths;
  • the Figure 8 represents a velocity curve as a function of the rotation cycle of the leaf cutter, for the second embodiment; and
  • the Figures 9 and 10 represent a synoptic side view of a processing unit of a support according to a third embodiment of the invention for a first and a second laying length.

Exposé détaillé des formes de réalisation préféréesDetailed description of the preferred embodiments

Comme l'illustrent les Figures 1 à 3, 6, 7, 9 et 10, une unité de transformation d'un support 1 est destinée à assurer une transformation d'un premier support, dans ce cas une bande continue de carton 2. La bande 2 rentre dans l'unité 1 par son côté transversal en amont. L'unité 1 coupe et transforme la bande 2 et délivre un deuxième support sous la forme de poses transformées 3, étant par conséquence en carton plat. Les poses 3 sortent de l'unité 1 par son côté transversal en aval. Le sens d'avance ou de défilement (de gauche à droite, Flèches F dans les Figures) de la bande 2 et des poses 3 suivant la direction longitudinale indique le sens amont et le sens aval dans l'unité 1.As illustrated by Figures 1 to 3 , 6 , 7 , 9 and 10 , a processing unit of a support 1 is intended to ensure a transformation of a first support, in this case a continuous strip of cardboard 2. The strip 2 enters the unit 1 by its transverse side upstream. The unit 1 cuts and transforms the strip 2 and delivers a second support in the form of transformed poses 3, being consequently in flat cardboard. The poses 3 leave the unit 1 by its transverse side downstream. The direction of advance or scrolling (from left to right, Arrows F in the Figures) of the strip 2 and poses 3 in the longitudinal direction indicates the upstream direction and the downstream direction in unit 1.

Une machine de production d'emballages comprend l'unité de transformation 1. En amont de l'unité de transformation 1, la machine de production d'emballages (non visible dans les Figures) possède, à titre d'exemple, un dérouleur de bobine, une unité d'impression avec au moins un groupe imprimeur, des moyens pour contrôler la qualité et le registre. Un guidage latéral de bande peut être utilisé pour corriger si nécessaire le registre latéral de la bande 2. Un rouleau baladeur est destiné à établir une tension constante de la bande 2.A packaging production machine comprises the processing unit 1. Upstream of the processing unit 1, the packaging production machine (not visible in the Figures) has, for example, a roll-up device. coil, a printing unit with at least one printing unit, means for controlling the quality and the register. Lateral web guiding may be used to correct the lateral register of web 2 if necessary. A traveling roller is intended to establish a constant tension of web 2.

Dans une première forme de réalisation de l'invention (Figures 1 à 3), l'unité de transformation 1 peut comprendre tout d'abord en amont un premier agencement d'entraînement motorisé 4 pour entraîner la bande 2 en défilement cadencé selon la direction longitudinale F. La bande 2 arrive de l'unité d'impression et du groupe imprimeur à vitesse constante. De manière avantageuse, le premier agencement motorisé 4 peut être un agencement à commande de boucle ou loop control.In a first embodiment of the invention ( Figures 1 to 3 ), the transformation unit 1 can first of all comprise upstream a first motorized drive arrangement 4 for driving the strip 2 in running rhythm in the longitudinal direction F. The strip 2 arrives from the printing unit and of the printer group at constant speed. Advantageously, the first motorized arrangement 4 can be a loop control or loop control arrangement.

L'agencement à commande de boucle peut favorablement comprendre un système de traction, i.e. un rouleau principal d'entraînement 6, également connue sous la dénomination anglaise de « feathering drive ». Associé au rouleau principal 6, l'agencement à commande de boucle peut comprendre une commande de boucle, i.e. un rouleau satellite 7.The loop control arrangement may favorably include a traction system, i.e. a main drive roll 6, also known as "feathering drive". Associated with the main roll 6, the loop control arrangement may comprise a loop control, i.e. a satellite roll 7.

Le rouleau principal d'entraînement 6 est entraîné en rotation et tourne (Flèche R en Figure 3) sur un arbre principal 9 grâce à un moteur principal électrique d'entraînement. L'arbre principal 9 et ainsi le rouleau principal 6 sont montés sensiblement à l'horizontal et perpendiculairement au sens de défilement de la bande 2. Le rouleau principal 6 entraîne ainsi en continu la bande 2 de l'amont vers l'aval. Un rouleau presseur 8 maintient la bande 2 positionnée contre le système de traction 6. Le premier agencement motorisé 4 comprend un rouleau d'introduction 11, analogue à un rouleau presseur, en amont garantissant la tension de la bande 2 en entrée.The main drive roll 6 is rotated and rotated (R arrow in Figure 3 ) on a main shaft 9 by means of an electric main drive motor. The main shaft 9 and thus the main roller 6 are mounted substantially horizontally and perpendicularly to the direction of travel of the strip 2. The main roller 6 thus continuously drives the strip 2 from upstream to downstream. A pressure roller 8 holds the band 2 positioned against the traction system 6. The first motorized arrangement 4 comprises an insertion roll 11, similar to a pressure roller, upstream guaranteeing the tension of the band 2 at the input.

La commande de boucle est un rouleau satellite 7 monté en étant accolé parallèlement au rouleau principal 6. La bande 2 est engagée entre le rouleau principal 6 et ce rouleau satellite 7. La bande 2 est y maintenue, tout en pouvant être entraînée. La bande 2 forme un trajet qui fait environ les trois-quarts de tour du rouleau principal 6 et la moitié de tour du rouleau satellite 7.The loop control is a satellite roller 7 mounted in parallel with the main roller 6. The strip 2 is engaged between the main roller 6 and the satellite roller 7. The strip 2 is held there, while being drivable. The strip 2 forms a path that is approximately three-quarters of a turn of the main roll 6 and half of a turn of the satellite roll 7.

Le rouleau satellite 7 est apte à osciller (Flèche O en Figures 1 et 3) autour du rouleau principal 6, de l'amont vers l'aval, et réciproquement de l'aval vers l'amont. Deux positions extrêmes du rouleau satellite 7 sont représentées en pointillés en Figure 1.The satellite roller 7 is able to oscillate (Arrow O in Figures 1 and 3 ) around the main roller 6, from upstream to downstream, and vice versa from downstream to upstream. Two extreme positions of the satellite roll 7 are shown in dotted lines in Figure 1 .

L'amplitude des oscillations O détermine les longueurs de bande 2 conservées et accumulées correspondant aux futures poses 3. La fréquence des oscillations O du rouleau satellite 7 engendre des variations de vitesse de la bande 2. La bande 2 passe de manière cyclique d'une vitesse constante à une vitesse nulle, et réciproquement, d'une vitesse nulle à une vitesse constante. Ces variations de vitesse et de ce fait la fréquence des oscillations (O) sont choisies en fonction de la vitesse de coupe et de transformation qui suit. Des exemples pour le premier agencement motorisé 4 sont connus d'après les documents CH-602.462 , CH-618.660 , EP-742.170 et WO- 2010/063 '353.The amplitude of the oscillations O determines the stored and accumulated band 2 lengths corresponding to the future poses 3. The frequency of the oscillations O of the satellite roll 7 generates velocity variations of the band 2. The band 2 passes cyclically from a constant speed at zero speed, and vice versa, from zero speed to constant speed. These variations of speed and therefore the frequency of the oscillations (O) are chosen as a function of the cutting speed and of the transformation which follows. Examples for the first motorized arrangement 4 are known from the documents CH-602 462 , CH-618 660 , EP-742 170 and WO-2010/063 '353.

L'unité de transformation 1 comprend ensuite un coupe-feuille 12, coupant la bande 2 en poses successives 3. Le coupe-feuille 12 est positionné en aval du premier agencement motorisé 4. Le coupe-feuille 12 comprend un outil de coupe supérieur 13 et un outil inférieur lisse 14, constituant un contre-outil, également connu sous le nom d'enclume.The processing unit 1 then comprises a cutter 12, cutting the strip 2 in successive poses 3. The cutter 12 is positioned downstream of the first motorized arrangement 4. The cutter 12 comprises an upper cutting tool 13 and a smooth lower tool 14, constituting a counter-tool, also known as an anvil.

L'outil de coupe 13 tourne à la même vitesse que l'outil inférieur 14. Les deux outils 13 et 14 sont motorisés, par un ou deux moteurs indépendants. Dans la première forme de réalisation, une vitesse de rotation des outils 13 et 14 du coupe-feuille 12 est préférentiellement constante et supérieure à la vitesse d'entrée de la bande 2 dans l'unité 1.The cutting tool 13 rotates at the same speed as the lower tool 14. The two tools 13 and 14 are powered by one or two independent motors. In the first embodiment, a rotational speed of the tools 13 and 14 of the cutter 12 is preferably constant and greater than the input speed of the band 2 in the unit 1.

Une plaque de coupe frontale 16 est fixée à la surface du cylindre de l'outil de coupe supérieur 13. La plaque 16 est munie de filets de coupe. La plaque 16 possède une longueur sensiblement égale à la laize de la bande 2. La plaque 16 avec ses filets s'étend sur un secteur de faible dimension angulaire. Les filets présentent une forme en zigzag qui est fonction de la forme du bord frontal de la pose 3 et du bord arrière de la pose précédente. La bande 2 est entraînée selon la direction longitudinale F uniquement lorsqu'elle entre en contact avec la plaque de coupe 16.A front cutting plate 16 is attached to the surface of the cylinder of the upper cutting tool 13. The plate 16 is provided with cutting nets. The plate 16 has a length substantially equal to the width of the strip 2. The plate 16 with its threads extends over a sector of small angular dimension. The nets have a zigzag shape which is a function of the shape of the front edge of the pose 3 and the rear edge of the previous pose. The strip 2 is driven along the longitudinal direction F only when it comes into contact with the cutting plate 16.

Dans la première forme de réalisation de l'invention (Figures 1 à 3), l'unité de transformation 1 comprend également un deuxième agencement d'entraînement motorisé 17 pour entraîner la bande 2 selon la direction longitudinale F. Ce deuxième agencement motorisé 17 peut être positionné à proximité immédiate, et peut être positionné dans ce cas à proximité et en amont du coupe-feuille 12. Ce deuxième agencement 17 peut avantageusement être intercalé entre le premier agencement motorisé 4 et le coupe-feuille 12.In the first embodiment of the invention ( Figures 1 to 3 ), the processing unit 1 also comprises a second motorized drive arrangement 17 for driving the band 2 in the longitudinal direction F. This second motorized arrangement 17 can be positioned in the immediate vicinity, and can be positioned in this case in close proximity. and upstream of the cutter 12. This second arrangement 17 may advantageously be interposed between the first motorized arrangement 4 and the cutter 12.

Le deuxième agencement motorisé 17 peut comprendre de préférence un rouleau d'entraînement inférieur 18 entraîné en rotation par un moteur électrique d'entraînement. Le deuxième agencement motorisé 17 peut également comprendre des moyens d'appui supérieurs de la bande 2 contre le rouleau d'entraînement 18. Ces moyens d'appui peuvent comprendre un seul ou une série de galets presseurs supérieurs 19. Le rouleau d'entraînement 18 et le ou les galets presseurs supérieurs 19 forment un système de galets preneurs ou de pincement, ce qui permet de maintenir et de guider la bande 2. Cette bande 2 est engagée, maintenue, pincée et entraînée entre le rouleau d'entraînement 18 et les galets presseurs 19. Le deuxième agencement motorisé 17 peut être du type décrit dans le document WO- 2010/066 '325.The second motorized arrangement 17 may preferably comprise a lower drive roller 18 rotated by an electric drive motor. The second motorized arrangement 17 may also include upper bearing means of the band 2 against the driving roller 18. These bearing means may comprise a single or a series of upper pressing rollers 19. The driving roller 18 and the upper pressing roller or rollers 19 form a gripper or pinch system, which allows to maintain and guide the strip 2. This strip 2 is engaged, maintained, pinched and driven between the drive roller 18 and the pressure rollers 19. The second motorized arrangement 17 may be of the type described in the document WO-2010/066 '325.

L'unité 1 comprend ensuite au moins une station de transformation des poses 3 à outils rotatifs. Dans les trois formes de réalisation montrées dans les Figures 1 à 3, 6, 7, 9 et 10, trois stations 21, 22 et 23 sont utilisées. Les trois stations 21, 22 et 23 sont disposées en ligne, les unes à la suite des autres, les poses 3 étant transformées successivement.The unit 1 then comprises at least one station for transforming poses 3 with rotating tools. In the three embodiments shown in the Figures 1 to 3 , 6 , 7 , 9 and 10 three stations 21, 22 and 23 are used. The three stations 21, 22 and 23 are arranged in line, one after the other, the poses 3 being transformed successively.

Une première station de transformation peut être une station de gaufrage 21 permettant de gaufrer les poses 3. La station de gaufrage 21 est positionnée en aval du coupe-feuille 12. La station de gaufrage 21 comprend un outil de gaufrage supérieur mâle 24 et un outil de gaufrage inférieur femelle 26. L'outil de gaufrage supérieur 24 tourne à la même vitesse que l'outil de gaufrage inférieur 26. Les deux outils de gaufrage 24 et 26 sont motorisés.A first processing station may be an embossing station 21 for embossing the poses 3. The embossing station 21 is positioned downstream of the cutter 12. The embossing station 21 comprises a male upper embossing tool 24 and a tool The upper embossing tool 24 rotates at the same speed as the lower embossing tool 26. The two embossing tools 24 and 26 are motorized.

Une plaque de gaufrage mâle 27 est fixée à la surface du cylindre de l'outil de gaufrage supérieur 24. La plaque 27 est munie d'une matrice de gaufrage mâle dont la conformation correspond au layout de la pose 3 et des boîtes gaufrées souhaitées. La plaque 27 avec sa matrice mâle s'étend sur toute ou partie de la surface du cylindre de l'outil de gaufrage supérieur 24.A male embossing plate 27 is attached to the surface of the cylinder of the upper embossing tool 24. The plate 27 is provided with a male embossing die whose conformation corresponds to the layout of the pose 3 and the desired embossed boxes. The plate 27 with its male matrix extends over all or part of the surface of the cylinder of the upper embossing tool 24.

De manière analogue, une plaque de gaufrage femelle (non représenté) est fixée à la surface du cylindre de l'outil de gaufrage inférieur 26. La plaque de gaufrage femelle est munie d'une matrice de gaufrage femelle dont la conformation est complémentaire à la matrice de gaufrage mâle et correspond au layout de la pose et des boîtes gaufrées souhaitées. La plaque avec sa matrice femelle s'étend également sur un secteur angulaire de dimensions sensiblement égales à celle de la plaque mâle 27. La bande 2 est entraînée selon la direction longitudinale F uniquement lorsqu'elle entre en contact avec les plaques de gaufrage mâle et femelle 27.Similarly, a female embossing plate (not shown) is attached to the surface of the cylinder of the lower embossing tool 26. The female embossing plate is provided with a female embossing die whose conformation is complementary to the male embossing die and corresponds to the layout of the pose and the desired embossed boxes. The plate with its female matrix also extends over an angular sector of dimensions substantially equal to that of the male plate 27. The band 2 is driven in the longitudinal direction F only when it comes into contact with the male embossing plates and female 27.

Une deuxième station de transformation peut être une station de refoulage et de découpe 22, permettant d'effectuer un refoulage des plis des poses 3, de découper les poses 3 et d'obtenir ainsi les boîtes. La station de refoulage et de découpe 22 est positionnée en aval de la station de gaufrage 21. La station de refoulage et de découpe 22 comprend un outil de refoulage et de découpe supérieur mâle 28 et un outil de refoulage et de découpe inférieur femelle 29. L'outil de refoulage et de découpe supérieur 28 tourne à la même vitesse que l'outil de refoulage et de découpe inférieur 29. Les deux outils de refoulage et de découpe 28 et 29 sont motorisés.A second processing station may be a crushing and cutting station 22, to perform a creasing of the folds of the poses 3, to cut the poses 3 and thus obtain the boxes. The crushing and cutting station 22 is positioned downstream of the embossing station 21. The creasing and cutting station 22 comprises a male upper crimping and cutting tool 28 and a crimping tool. The upper crushing and cutting tool 28 rotates at the same speed as the lower crushing and cutting tool 29. The two crushing and cutting tools 28 and 29 are motorized.

Une plaque de refoulage et de découpe mâle 31 est fixée à la surface du cylindre de l'outil de refoulage et de découpe supérieur 28. La plaque de refoulage et de découpe mâle 31 est munie à la fois d'une matrice de refoulage et de filets de découpe mâle dont la conformation correspond au layout de la pose 3 et des boîtes refoulées et découpées souhaitées. La plaque 31 avec sa matrice et ses filets mâle s'étend sur toute ou partie de la surface du cylindre de l'outil de refoulage et de découpe supérieur 28.A crimping and cutting plate 31 is fixed to the surface of the cylinder of the upper crushing and cutting tool 28. The crushing and cutting plate 31 is provided with both a crushing die and a crimping die. male cutting threads whose conformation corresponds to the layout of the pose 3 and the desired pressed and cut boxes. The plate 31 with its matrix and its male threads extends over all or part of the surface of the cylinder of the upper pressing and cutting tool 28.

De manière analogue, une plaque de refoulage femelle (non représenté) est fixée à la surface du cylindre de l'outil de refoulage et de découpe inférieur 29. La plaque de refoulage femelle est munie d'une matrice de refoulage femelle dont la conformation est complémentaire à la matrice de refoulage mâle et correspond au layout de la pose et des boîtes refoulées et découpées souhaitées. La plaque avec sa matrice femelle s'étend également sur un secteur de dimensions sensiblement égales à celle de la plaque mâle 31. La bande 2 est entraînée selon la direction longitudinale F uniquement lorsqu'elle entre en contact avec les plaques de refoulage et de découpe mâle et femelle 31.Similarly, a female upset plate (not shown) is attached to the surface of the cylinder of the upset and lower cutter 29. The female backing plate is provided with a female upset die whose conformation is complementary to the male upsetting die and corresponds to the layout of the pose and the boxes repressed and cut desired. The plate with its female matrix also extends over a sector of dimensions substantially equal to that of the male plate 31. The band 2 is driven in the longitudinal direction F only when it comes into contact with the upset and cutting plates male and female 31.

Une troisième station de transformation peut être une station d'éjection des déchets 23, permettant d'effectuer une éjection des zones de déchets présents sur les poses 3 et d'obtenir ainsi les boîtes. La station d'éjection 23 est positionnée en aval de la station de refoulage et de découpe 22. La station d'éjection 23 comprend un outil d'éjection supérieur 32 et un outil d'éjection inférieur 33. L'outil d'éjection supérieur 32 tourne à la même vitesse que l'outil d'éjection inférieur 33. Les deux outils d'éjection 32 et 33 sont motorisés.A third processing station may be a waste ejection station 23, making it possible to eject the waste areas present on the poses 3 and thus obtain the boxes. The ejection station 23 is positioned downstream of the upsetting and cutting station 22. The ejection station 23 comprises an upper ejection tool 32 and a lower ejection tool 33. The upper ejection tool 32 rotates at the same speed as the lower ejection tool 33. The two ejection tools 32 and 33 are motorized.

Un secteur d'éjection 34 est fixé à la surface du cylindre de l'outil d'éjection inférieur 33. Le secteur 34 est muni d'une série d'aiguilles radiales qui sont aptes à s'enfoncer dans chaque déchet découpé. Les aiguilles séparent les déchets de la pose 3 en les entraînant avec la rotation de cet outil inférieur à aiguilles 33. Les aiguilles sont positionnées sur le secteur 34 et ainsi sur l'outil inférieur 33 en fonction du layout de la pose 3 et des boîtes découpées souhaitées. Le secteur 34 avec ses aiguilles s'étend sur toute ou partie de la surface du cylindre de l'outil d'éjection supérieur 32.An ejection sector 34 is attached to the surface of the cylinder of the lower ejection tool 33. The sector 34 is provided with a series of radial needles which are able to sink into each cut waste. The needles separate the waste from the laying 3 by dragging them with the rotation of this lower needle tool 33. The needles are positioned on the sector 34 and thus on the lower tool 33 according to the layout of the pose 3 and boxes desired cuts. The sector 34 with its needles extends over all or part of the surface of the cylinder of the upper ejection tool 32.

Des trous sont prévus à différent endroits sur toute la surface de l'outil d'éjection supérieur 32. Les trous peuvent être percés directement dans le corps cylindrique métallique de l'outil d'éjection supérieur 32. Les trous peuvent être percés dans un revêtement souple de type caoutchouc vulcanisé recouvrant la surface du cylindre de l'outil d'éjection supérieur 32. Les trous peuvent être percés dans une plaque rapportée ensuite sur la surface du cylindre de l'outil d'éjection supérieur 32 ou directement sur le cylindre dans les cas plus simples. La position des trous correspond au layout de la pose 3 et des boîtes découpées souhaitées et donc à celle des aiguilles de l'outil inférieur 33. Ces aiguilles viennent se loger dans les trous lors de la rotation des deux outils 32 et 33, de façon à bien transpercer les déchets. Les outils supérieur 32 et inférieur 33 assurent le transport des poses 3 et leur maintien lors du piquage des déchets.Holes are provided at different locations over the entire surface of the upper ejector tool 32. The holes can be drilled directly into the metallic cylindrical body of the upper ejector tool 32. The holes can be drilled in a hole. vulcanized rubber-like flexible coating covering the surface of the cylinder of the upper ejection tool 32. The holes can be drilled in a plate then attached to the surface of the cylinder of the upper ejection tool 32 or directly on the cylinder in the simplest cases. The position of the holes corresponds to the layout of the pose 3 and the desired cut boxes and therefore to that of the needles of the lower tool 33. These needles are housed in the holes during the rotation of the two tools 32 and 33, so to pierce the waste. The upper tools 32 and lower 33 transport the poses 3 and their maintenance when stitching waste.

Ces déchets sont ensuite dégagés de ces aiguilles radiales au cours de la rotation de l'outil inférieur 33. Pour ce faire, des éjecteurs en forme de peignes fixes sont disposés parallèles à l'outil inférieur 33 (non représentés). Les aiguilles radiales sont ainsi libérées des déchets et s'enfoncent dans d'autres déchets de la pose suivante 3 lors du prochain tour de l'outil inférieur 33.This waste is then released from these radial needles during the rotation of the lower tool 33. To this end, ejectors in the form of fixed combs are arranged parallel to the lower tool 33 (not shown). The radial needles are thus released from the waste and sink into other waste of the next pose 3 during the next turn of the lower tool 33.

La ou les stations de transformation est une station de découpe 22 des poses 3 en boîtes, et/ou une station de gaufrage 21 des poses 3, et/ou une station de refoulage 22 des poses 3 et/ou une station d'éjection 23 des déchets. Ainsi toutes les variations sont possibles pour les outils 24, 26, 28, 29, 32 et 33 de la ou des stations de transformation 21, 22 et 23. La première station de transformation, i.e. station de gaufrage 21, est optionnelle selon le type de boîtes souhaitées. Une même station peut également comprendre à la fois un outil de gaufrage et un outil de refoulage. Une station peut être spécifiquement dédiée au refoulage et une autre station supplémentaire peut être dédiée à la découpe. Une station peut comprendre un outil de découpe supérieur coopérant avec un outil d'éjection inférieur.The processing station or stations is a cutting station 22 of the poses 3 in boxes, and / or an embossing station 21 of the poses 3, and / or a depiling station 22 of the poses 3 and / or an ejection station 23 garbage. Thus all the variations are possible for the tools 24, 26, 28, 29, 32 and 33 of the processing station or stations 21, 22 and 23. The first processing station, ie embossing station 21, is optional depending on the type of boxes desired. The same station may also include both an embossing tool and a crushing tool. One station may be specifically dedicated to the upsetting and another additional station may be dedicated to cutting. A station may include an upper cutting tool cooperating with a lower ejection tool.

La pose 3 découpée en boîtes simplement rattachées par des points d'attache dans la station de découpe et de refoulage 22 est plus fragile. La pose 3 est maintenue pour son transport vers la station d'éjection des déchets 23. Un premier convoyeur 36 de type à courroie et/ou ou tapis vacuum peut être intercalé entre la station de découpe et de refoulage 22 et la station d'éjection des déchets 23. La pose 3 découpée en boîtes simplement rattachées par des points d'attache et sans déchets sortant de la station d'éjection des déchets 23 est plus fragile. La pose 3 est maintenue pour son transport en dehors de l'unité de transformation 1. Un deuxième convoyeur 37 de type à courroie et/ou ou tapis vacuum peut être positionné en aval de la station d'éjection des déchets 23.The laying 3 cut into boxes simply attached by attachment points in the cutting station and upsetting 22 is more fragile. The laying 3 is maintained for its transport to the waste ejection station 23. A first belt-type conveyor 36 and / or vacuum belt may be interposed between the cutting and crushing station 22 and the ejection station 23. The pose 3 cut into boxes simply attached by attachment points and without waste out of the waste ejection station 23 is more fragile. The laying 3 is maintained for its transport outside the processing unit 1. A second belt-type conveyor 37 and / or vacuum belt may be positioned downstream of the waste ejection station 23.

La machine de production d'emballage peut posséder un séparateur de poses, positionné en aval de la station d'éjection des déchets 23 et donc en aval de l'unité de transformation 1. Les poses 3 y sont séparées en boîtes individualisées.The packaging production machine can have a separator of poses, positioned downstream of the waste ejection station 23 and therefore downstream of the waste unit. transformation 1. The poses 3 are separated into individual boxes.

Le diamètre des outils supérieur 24, 28 et 32 et inférieurs 26, 29 et 33 est prévu suffisamment grand pour avoir un développé important. Tous les outils 24, 26, 28, 29, 32 et 33 ont un développé égal qui correspond à la longueur maximale possible pour les poses 3. La possibilité de transformer de poses 3 ayant des longueurs différentes est fonction du secteur angulaire et donc de la longueur des plaques choisies 27, 31 et 34.The diameter of the upper tools 24, 28 and 32 and lower 26, 29 and 33 is provided large enough to have a large development. All the tools 24, 26, 28, 29, 32 and 33 have an equal developed which corresponds to the maximum possible length for the poses 3. The possibility of transforming poses 3 having different lengths depends on the angular sector and therefore the length of the selected plates 27, 31 and 34.

De manière particulièrement favorable, les outils rotatifs du coupe-feuilles 12 et/ou les outils rotatifs de la station de transformation ou des stations de transformation 21, 22 et 23 sont montés dans une cassette. Avec une cassette, l'opérateur va pouvoir changer les outils en dehors de la station, et ainsi en dehors de la machine de production d'emballages. La cassette permet à l'opérateur de préparer facilement la station pour le travail suivant, en fonction des besoins, i.e. en fonction du layout des poses et/ou des boîtes, tout en ayant une production en cours.Particularly favorably, the rotary tools of the cutter 12 and / or the rotary tools of the processing station or processing stations 21, 22 and 23 are mounted in a cassette. With a cassette, the operator will be able to change the tools outside the station, and thus outside the packaging production machine. The cassette allows the operator to easily prepare the station for the next job, as needed, i.e. according to the layout of the poses and / or boxes, while having a production in progress.

La cassette comprend deux paliers supérieurs maintenant pour rotation l'outil supérieur 13 ou 24 ou 28 ou 32 respectivement fixés à deux paliers inférieurs maintenant pour rotation l'outil inférieur 14 ou 26 ou 29 ou 33. La cassette amovible est apte à être introduite dans un bâti de la station de transformation, à être fixée au bâti. Et à l'inverse, la cassette amovible est apte à être désolidarisée et à être extraite de ce bâti.The cassette comprises two upper bearings now for rotation the upper tool 13 or 24 or 28 or 32 respectively fixed to two lower bearings now for rotation the lower tool 14 or 26 or 29 or 33. The removable cassette is suitable for insertion into a frame of the transformation station, to be fixed to the frame. And conversely, the removable cassette is able to be detached and to be extracted from this frame.

Une vitesse de rotation des outils 24, 26, 28, 29, 32 et 33 de la ou des stations de transformation 21, 22 et 23 est préférentiellement constante et supérieure à la vitesse d'entrée de la bande 2 dans l'unité 1. Grâce à l'agencement à commande de boucle 4, la vitesse de la bande 2 est toujours ajustée pour être adaptée à la vitesse angulaire constante des outils du coupe-feuille 12 et de la ou des stations de transformation 21, 22 et 23.A rotational speed of the tools 24, 26, 28, 29, 32 and 33 of the processing station or stations 21, 22 and 23 is preferably constant and greater than the input speed of the band 2 in the unit 1. By virtue of the loop control arrangement 4, the speed of the web 2 is always adjusted to be adapted to the constant angular velocity of the tools of the cutter 12 and the processing station or stations 21, 22 and 23.

Selon l'invention, le deuxième agencement motorisé 17 présente un profil de vitesse variable pour le support, ici la bande 2. Le deuxième agencement motorisé 17 est ainsi un rouleau d'introduction modulé. La Figure 4 concerne le profil de vitesse 38 et l'accélération 39 du deuxième agencement 17 pour une longueur de pose minimale 3. La Figure 5 concerne le profil de vitesse 41 et l'accélération 42 du deuxième agencement 17 pour une longueur de pose maximale 3.According to the invention, the second motorized arrangement 17 has a variable speed profile for the support, here the band 2. The second motorized arrangement 17 is thus a modulated introduction roller. The Figure 4 relates to the speed profile 38 and the acceleration 39 of the second arrangement 17 for a minimum laying length 3. Figure 5 relates to the speed profile 41 and the acceleration 42 of the second arrangement 17 for a maximum laying length 3.

Dans la première forme de réalisation de l'invention (voir Figures 1 à 5), en raison de la position du deuxième agencement 17, une première phase de diminution de la vitesse 43 du deuxième agencement 17 est effectuée après la dernière coupe par le coupe-feuille 12. La Figure 1 montre la position relative de la commande de boucle 4 et des outils 24, 26, 28, 29, 32 et 33 lorsque l'outil de coupe 13 du coupe-feuille 12 vient de terminer la coupe de la bande 2.In the first embodiment of the invention (see Figures 1 to 5 ), because of the position of the second arrangement 17, a first phase of decreasing the speed 43 of the second arrangement 17 is performed after the last cut by the leaf cutter 12. Figure 1 shows the relative position of the loop control 4 and tools 24, 26, 28, 29, 32 and 33 when the cutting tool 13 of the cutter 12 has just finished cutting the strip 2.

Dans la première phase 43, la commande de boucle 4 commence à reculer dans le but d'accumuler la bande 2 arrivant de l'unité d'impression et de la conserver momentanément avant de l'envoyer vers la coupe. Une longueur de bande 2 déterminée est accumulée en amont du deuxième agencement 17. Cette longueur de bande 2 est fonction de la différence de longueur entre la longueur de la pose 3 et la circonférence développée des outils 26, 27, 28, 29, 32 et 33.In the first phase 43, the loop control 4 begins to move back in order to accumulate the band 2 coming from the printing unit and keep it momentarily before sending it to the cut. A determined strip length 2 is accumulated upstream of the second arrangement 17. This strip length 2 is a function of the difference in length between the length of the laying 3 and the developed circumference of the tools 26, 27, 28, 29, 32 and 33.

Pendant que la longueur adéquate de bande 2 est conservée, un intervalle G est ainsi généré entre la bande 2 arrivant pour la pose suivante et la pose 3 venant d'être coupée. Pendant que la longueur adéquate de bande 2 est conservée, la pose 3 venant d'être coupée est entrainée et simultanément transformée par les outils 24, 26, 28, 29, 32 et 33 dans les stations 21, 22 et 23. L'intervalle maximal nécessaire G coïncide avec la différence entre la longueur de la pose 3 et la circonférence des outils 24, 26, 28, 29, 32 et 33.While the adequate length of band 2 is maintained, a gap G is thus generated between the band 2 arriving for the next pose and the pose 3 just cut. While the adequate length of band 2 is maintained, the laying 3 just cut is driven and simultaneously transformed by the tools 24, 26, 28, 29, 32 and 33 in the stations 21, 22 and 23. The interval the maximum required G coincides with the difference between the length of the pose 3 and the circumference of the tools 24, 26, 28, 29, 32 and 33.

Dans la première forme de réalisation de l'invention (voir Figures 1 à 5), en raison de la position du deuxième agencement 17, une deuxième phase d'augmentation de la vitesse 44 du deuxième agencement 17 est effectuée avant la prochaine coupe par le coupe-feuille 12. La Figure 2 montre la position relative de la commande de boucle 4 et des outils 24, 26, 28, 29, 32 et 33 lorsque l'outil de coupe 13 du coupe-feuille 12 est à environ 30° avant la coupe de la bande 2. Dans la deuxième phase, la commande de boucle 4 commence à avancer dans le but d'accélérer la bande 2 à la même vitesse que celle de l'outil de coupe 13. La bande 2 est évacuée en aval du deuxième agencement 17.In the first embodiment of the invention (see Figures 1 to 5 ), because of the position of the second arrangement 17, a second phase of increasing the speed 44 of the second arrangement 17 is performed before the next cut by the cutter 12. Figure 2 shows the relative position of the loop control 4 and the tools 24, 26, 28, 29, 32 and 33 when the cutting tool 13 of the cutter 12 is about 30 ° before cutting the strip 2. In the second phase, the loop control 4 begins to advance in order to accelerate the band 2 at the same speed as that of the cutting tool 13. The band 2 is discharged downstream of the second arrangement 17.

Dans une troisième phase 46, la vitesse tangentielle du deuxième agencement motorisé 17 est constante, et est sensiblement égale à la vitesse de rotation des outils 13 et 14 du coupe-feuille 12. La coupe est réalisée pendant cette troisième phase. La Figure 3 montre l'outil de coupe 13 du coupe-feuille 12 en position de finir sa coupe de la bande 2. A ce moment, la vitesse de la bande 2 doit être la même que la vitesse tangentielle des outils 24, 26, 28, 29, 32 et 33.In a third phase 46, the tangential speed of the second motorized arrangement 17 is constant, and is substantially equal to the speed of rotation of the tools 13 and 14 of the cutter 12. The cut is made during this third phase. The Figure 3 shows the cutting tool 13 of the cutter 12 in position to finish its cut of the strip 2. At this moment, the speed of the strip 2 must be the same as the tangential speed of the tools 24, 26, 28, 29 , 32 and 33.

Dans une deuxième forme de réalisation de l'invention (voir Figures 6 et 7), l'unité de transformation 47 peut comprendre tout d'abord en amont un premier agencement d'entraînement motorisé 48. La bande 2 arrive de l'unité d'impression et du groupe imprimeur à vitesse constante. De manière favorable, le premier agencement 48 peut entraîner la bande 2 en défilement à vitesse constante selon la direction longitudinale F. Le premier agencement 48 est sensiblement mécaniquement analogue au deuxième agencement 17 décrit pour la première forme de réalisation de l'invention.In a second embodiment of the invention (see Figures 6 and 7 ), the transformation unit 47 may first comprise a first motorized drive arrangement 48 upstream. The belt 2 arrives from the printing unit and the printer unit at a constant speed. Favorably, the first arrangement 48 can cause the strip 2 to scroll at a constant speed in the longitudinal direction F. The first arrangement 48 is substantially mechanically analogous to the second arrangement 17 described for the first embodiment of the invention.

Le coupe-feuille 12 de la deuxième forme de réalisation est mécaniquement identique à celui décrit pour la première forme de réalisation de l'invention. Dans la deuxième forme de réalisation, une vitesse de rotation des outils 13 et 14 du coupe-feuille 12 est préférentiellement modulée. La vitesse des outils 13 et 14 est constante et doit être sensiblement identique à celle de la bande 2 au moment de la coupe frontale, en raison de la faible dimension angulaire de la plaque 16. La vitesse des outils 13 et 14 est variable avec accélération et décélération dans le restant du périmètre, afin d'assurer la synchronisation en position avec la pose suivante.The cut sheet 12 of the second embodiment is mechanically identical to that described for the first embodiment of the invention. In the second embodiment, a rotation speed of the tools 13 and 14 of the cutter 12 is preferably modulated. The speed of the tools 13 and 14 is constant and must be substantially identical to that of the band 2 at the time of the frontal cut, due to the small angular dimension of the plate 16. The speed of the tools 13 and 14 is variable with acceleration and deceleration in the remainder of the perimeter, to ensure synchronization in position with the next pose.

Dans la deuxième forme de réalisation, l'unité de transformation 47 comprend également un deuxième agencement d'entraînement motorisé 49 pour entraîner le support, i.e. la bande 2 et la pose 3, selon la direction longitudinale F. Ce deuxième agencement 49 peut être positionné à proximité immédiate, et peut être positionné dans ce cas à proximité et en aval du coupe-feuille 12. Ce deuxième agencement 49 peut avantageusement être intercalé entre le coupe-feuille 12 et la première des stations de transformation 21.In the second embodiment, the transformation unit 47 also comprises a second motorized drive arrangement 49 for driving the support, ie the strip 2 and the laying 3, in the longitudinal direction F. This second arrangement 49 can be positioned in the immediate vicinity, and can be positioned in this case near and downstream of the cutter 12. This second arrangement 49 may advantageously be inserted between the cutter 12 and the first of the processing stations 21.

Le deuxième agencement 49 est sensiblement mécaniquement analogue au deuxième agencement 17 décrit pour la première forme de réalisation de l'invention. Le deuxième agencement 49 peut ainsi être mécaniquement analogue au premier agencement 48. Le support, i.e. la bande 2 et la pose 3, est engagé, maintenu, pincé et entraîné entre le rouleau d'entraînement inférieur 18 et les galets presseurs supérieurs 19.The second arrangement 49 is substantially mechanically similar to the second arrangement 17 described for the first embodiment of the invention. The second arrangement 49 can thus be mechanically similar to the first arrangement 48. The support, i.e. the band 2 and the pose 3, is engaged, maintained, pinched and driven between the lower drive roller 18 and the upper pressure rollers 19.

Les trois stations de transformations 21, 22 et 23 de la deuxième forme de réalisation sont identiques à celles décrites pour la première forme de réalisation de l'invention. Et de manière analogue à la première forme de réalisation de l'invention, la machine de production d'emballage peut posséder un séparateur de poses, positionné en aval de la station d'éjection des déchets 23 et donc en aval de l'unité de transformation 47. Les poses 3 y sont séparées en boîtes individualisées.The three transformation stations 21, 22 and 23 of the second embodiment are identical to those described for the first embodiment of the invention. And similarly to the first embodiment of the invention, the packaging production machine may have a positron separator, positioned downstream of the waste ejection station 23 and therefore downstream of the waste unit. transformation 47. The poses 3 are separated into individual boxes.

Selon l'invention, le deuxième agencement motorisé 49 présente un profil de vitesse variable pour le support, ici la bande 2 et la pose 3. Le deuxième agencement motorisé 49 est ainsi un rouleau de sortie modulé. La Figure 8 concerne le profil de vitesse 51 et l'accélération 52 du deuxième agencement 49.According to the invention, the second motorized arrangement 49 has a variable speed profile for the support, here the band 2 and the pose 3. The second motorized arrangement 49 is thus a modulated output roller. The Figure 8 relates to the speed profile 51 and the acceleration 52 of the second arrangement 49.

Dans la deuxième forme de réalisation de l'invention (voir Figures 6 à 8), une première phase d'augmentation de la vitesse 53 du deuxième agencement 49 est effectuée après la dernière coupe par le coupe-feuille 12, en raison de la position du deuxième agencement 49.In the second embodiment of the invention (see Figures 6 to 8 ), a first phase of increasing the speed 53 of the second arrangement 49 is performed after the last cut by the cutter 12, due to the position of the second arrangement 49.

La pose 3 venant d'être coupée est accélérée et entrainée par le deuxième agencement 49 pour atteindre la même vitesse 54 que celle des outils 24, 26, 28, 29, 32 et 33 des stations de transformation 21, 22 et 23. Un intervalle G est ainsi généré entre la bande 2 arrivant pour la pose suivante et la pose 3 venant d'être coupée. L'intervalle maximal nécessaire G coïncide avec la différence entre la longueur de la pose 3 et la circonférence des outils 24, 26, 28, 29, 32 et 33.The laying 3 just cut is accelerated and driven by the second arrangement 49 to reach the same speed 54 as the tools 24, 26, 28, 29, 32 and 33 of the processing stations 21, 22 and 23. An interval G is thus generated between the band 2 arriving for the next pose and the pose 3 having just been cut. The maximum gap required G coincides with the difference between the length of the pose 3 and the circumference of the tools 24, 26, 28, 29, 32 and 33.

Dans la deuxième forme de réalisation de l'invention (voir Figures 6 à 8), en raison de la position du deuxième agencement 49, une deuxième phase de diminution de la vitesse 56 du deuxième agencement 49 est effectuée avant la coupe suivante par le coupe-feuille 12. Pendant cette phase de diminution de la vitesse 56, une longueur de bande 2 déterminée est accumulée en amont du deuxième agencement 49. Cette longueur de bande 2 est fonction de la différence de longueur entre la longueur de la pose 3 et la circonférence développée des outils 26, 27, 28, 29, 32 et 33.In the second embodiment of the invention (see Figures 6 to 8 ), because of the position of the second arrangement 49, a second phase of decreasing the speed 56 of the second arrangement 49 is performed before the next cut by the cutter 12. During this phase of decreasing the speed 56, a length determined band 2 is accumulated upstream of the second arrangement 49. This band length 2 is a function of the difference in length between the length of the pose 3 and the developed circumference of the tools 26, 27, 28, 29, 32 and 33.

Dans une troisième phase 57, la vitesse tangentielle du deuxième agencement 49 est constante, et est sensiblement égale à la vitesse de rotation des outils 13 et 14 du coupe-feuille 12. La coupe est réalisée pendant cette troisième phase 57.In a third phase 57, the tangential speed of the second arrangement 49 is constant, and is substantially equal to the speed of rotation of the tools 13 and 14 of the cutter 12. The cut is made during this third phase 57.

Le premier agencement 48 et le coupe-feuille 12 sont montés longitudinalement mobiles (Flèche L en Figures 6 et 7), par exemple dans un bâti 58 coulissant sur des rails 59, de façon à faire varier la distance entre le coupe-feuille 12 et la station de transformation 21, en fonction de la longueur souhaitée pour les poses 3. La Figure 7 montre spécifiquement la configuration pour la longueur maximale de la pose 3. Le bâti 58 se retrouve dans sa position la plus extrême à gauche de la Figure 7, l'espace entre le bâti 58 et le deuxième agencement 49 ou la première station de transformation 21 est le plus ouvert.The first arrangement 48 and the cutter 12 are mounted longitudinally movable (L-shaped arrow Figures 6 and 7 ), for example in a frame 58 sliding on rails 59, so as to vary the distance between the cutter 12 and the processing station 21, depending on the desired length for the poses 3. The Figure 7 specifically shows the configuration for the maximum length of the pose 3. The frame 58 is found in its most extreme position to the left of the Figure 7 the space between the frame 58 and the second arrangement 49 or the first transformation station 21 is the most open.

Dans une troisième forme de réalisation de l'invention (voir Figures 9 et 10), l'unité de transformation 61 peut comprendre tout d'abord en amont un premier agencement d'entraînement motorisé 48. La bande 2 arrive de l'unité d'impression et du groupe imprimeur à vitesse constante. Le premier agencement 48 est sensiblement mécaniquement analogue au premier agencement 48 décrit pour la deuxième forme de réalisation de l'invention et au deuxième agencement 17 décrit pour la première forme de réalisation de l'invention. De manière favorable, le premier agencement 48 peut entraîner la bande 2 en défilement à vitesse constante selon la direction longitudinale F.In a third embodiment of the invention (see Figures 9 and 10 ), the processing unit 61 may first include a first motorized drive arrangement 48 upstream. The web 2 arrives from the printing unit and the printer unit at a constant speed. The first arrangement 48 is substantially mechanically similar to the first arrangement 48 described for the second embodiment of the invention and the second arrangement 17 described for the first embodiment of the invention. Favorably, the first arrangement 48 can cause the strip 2 to scroll at constant speed in the longitudinal direction F.

Le coupe-feuille 12 de la troisième forme de réalisation est mécaniquement identique à celui décrit pour les première et deuxième formes de réalisation de l'invention. Dans la troisième forme de réalisation et comme pour la deuxième forme de réalisation, une vitesse de rotation des outils 13 et 14 du coupe-feuille 12 est préférentiellement modulée.The cutter 12 of the third embodiment is mechanically identical to that described for the first and second embodiments of FIG. the invention. In the third embodiment and as in the second embodiment, a rotational speed of the tools 13 and 14 of the cutter 12 is preferably modulated.

Dans la troisième forme de réalisation, l'unité de transformation 61 comprend également un deuxième agencement d'entraînement motorisé 62 pour entraîner le support, i.e. la bande 2 et la pose 3, selon la direction longitudinale F. Ce deuxième agencement 62 peut être positionné à proximité immédiate, et peut être positionné dans ce cas à proximité et en aval du coupe-feuille 12. Ce deuxième agencement 62 peut avantageusement être intercalé entre le coupe-feuille 12 et la première des stations de transformation 21.In the third embodiment, the transformation unit 61 also comprises a second motorized drive arrangement 62 for driving the support, ie the band 2 and the laying 3, in the longitudinal direction F. This second arrangement 62 can be positioned in the immediate vicinity, and can be positioned in this case near and downstream of the cutter 12. This second arrangement 62 can advantageously be inserted between the cutter 12 and the first of the processing stations 21.

Le deuxième agencement 62 est mécaniquement sensiblement analogue au deuxième agencement d'entraînement 17 décrit pour la première forme de réalisation de l'invention et au premier agencement motorisé 48. Le support, i.e. la bande 2 et la pose 3, est engagé, maintenu, pincé et entraîné entre le rouleau d'entraînement inférieur 18 et les galets presseurs supérieurs 19.The second arrangement 62 is mechanically substantially similar to the second drive arrangement 17 described for the first embodiment of the invention and the first motorized arrangement 48. The support, ie the band 2 and the laying 3, is engaged, maintained, pinched and driven between the lower drive roller 18 and the upper pinch rollers 19.

Les trois stations de transformations 21, 22 et 23 de la troisième forme de réalisation sont identiques à celles décrites pour les première et deuxième formes de réalisation de l'invention. Et de manière analogue aux première et deuxième forme de réalisation de l'invention, la machine de production d'emballage peut posséder un séparateur de poses, positionné en aval de la station d'éjection des déchets 23 et donc en aval de l'unité de transformation 61. Les poses 3 y sont séparées en boîtes individualisées.The three transformation stations 21, 22 and 23 of the third embodiment are identical to those described for the first and second embodiments of the invention. And similarly to the first and second embodiments of the invention, the packaging production machine can have a separator poses, positioned downstream of the waste ejection station 23 and therefore downstream of the unit The poses 3 are separated therein into individual boxes.

Dans la troisième forme de réalisation, l'unité de transformation 61 peut préférentiellement comprendre également un troisième agencement motorisé 63 pour entraîner le support, i.e. la bande 2 et la pose 3, selon la direction longitudinale F. Ce troisième agencement 63 peut être positionné à proximité immédiate, et peut être positionné dans ce cas à proximité et en aval du coupe-feuille 12. Ce troisième agencement 63 peut avantageusement être intercalé entre le coupe-feuille 12 et le deuxième agencement 62.In the third embodiment, the transformation unit 61 may preferably also comprise a third motorized arrangement 63 for driving the support, ie the strip 2 and the laying 3, in the longitudinal direction F. This third arrangement 63 can be positioned at immediate proximity, and can be positioned in this case near and downstream of the cutter 12. This third arrangement 63 may advantageously be inserted between the cutter 12 and the second arrangement 62.

Le troisième agencement 63 est mécaniquement sensiblement analogue au deuxième agencement 17 décrit pour la première forme de réalisation de l'invention. Le troisième agencement 63 peut ainsi être mécaniquement analogue au premier agencement 48 et au deuxième agencement 62. Le support, i.e. la bande 2 et la pose 3, est engagé, maintenu et entraîné entre le rouleau d'entraînement inférieur 18 et les galets presseurs supérieurs 19.The third arrangement 63 is mechanically substantially similar to the second arrangement 17 described for the first embodiment of the invention. The third arrangement 63 can thus be mechanically similar to the first arrangement 48 and the second arrangement 62. The support, ie the strip 2 and the installation 3, is engaged, held and driven between the lower drive roller 18 and the upper pressure rollers 19.

Comme cela est visible en Figure 10, le deuxième agencement 62 est monté longitudinalement mobile (Flèche T en Figure 10). Ceci permet de faire varier la distance entre le deuxième agencement 62 et le coupe-feuille 12, en fonction de la longueur de la pose 3 ou de la bande 2 constituant la future pose. Le premier agencement 48 et le coupe-feuille 12 sont montés immobiles, par exemple dans un bâti 58 fixé sur un socle 64.As is visible in Figure 10 the second arrangement 62 is mounted longitudinally mobile (Arrow T in Figure 10 ). This makes it possible to vary the distance between the second arrangement 62 and the cutter 12, depending on the length of the laying 3 or the band 2 constituting the future pose. The first arrangement 48 and the sheet-cutter 12 are stationary mounted, for example in a frame 58 fixed on a base 64.

La Figure 10 montre spécifiquement la configuration pour la longueur maximale de la pose 3. Le troisième agencement 63 est de ce fait apte à être déconnecté. Son inactivation se fait par exemple en soulevant (Flèche U en Figure 10) les galets presseurs 19, et en abaissant (Flèche D en Figure 10) le rouleau d'entraînement 18, ce qui permet de les écarter de la bande 2. Ceci permet d'avoir seulement le deuxième agencement 62 en entraînement actif, ce qui est fonction de la longueur de la pose 3 ou de la bande 2 constituant la future pose.The Figure 10 shows specifically the configuration for the maximum length of the pose 3. The third arrangement 63 is thereby able to be disconnected. Its inactivation is done for example by lifting (Arrow U in Figure 10 ) the pressure rollers 19, and lowering (Arrow D in Figure 10 ) the drive roller 18, which allows to separate them from the band 2. This allows to have only the second arrangement 62 in active drive, which is a function of the length of the pose 3 or the strip 2 constituting the future pose.

Selon l'invention, le deuxième agencement motorisé 62 et/ou le troisième agencement 63 présentent un profil de vitesse variable pour le support, ici la bande 2 et la pose 3. La Figure 8 concerne le profil de vitesse 51 et l'accélération 52 du deuxième agencement 62 et/ou du troisième agencement 63.According to the invention, the second motorized arrangement 62 and / or the third arrangement 63 have a variable speed profile for the support, here the band 2 and the laying 3. The Figure 8 relates to the speed profile 51 and the acceleration 52 of the second arrangement 62 and / or the third arrangement 63.

Dans la troisième forme de réalisation de l'invention (voir Figures 8 à 10), une première phase d'augmentation de la vitesse 53 du deuxième agencement 62 et/ou du troisième agencement 63 est effectuée après la dernière coupe par le coupe-feuille 12, en raison de la position du deuxième agencement 62 et/ou du troisième agencement 63.In the third embodiment of the invention (see Figures 8 to 10 ), a first step of increasing the speed 53 of the second arrangement 62 and / or the third arrangement 63 is performed after the last cut by the cutter 12, due to the position of the second arrangement 62 and / or the third arrangement 63.

La pose 3 venant d'être coupée est accélérée et entrainée par le deuxième agencement 62 et/ou par le troisième agencement 63 pour atteindre la même vitesse 54 que celle des outils 24, 26, 28, 29, 32 et 33 des stations de transformation 21, 22 et 23. Un intervalle G est ainsi généré entre la bande 2 arrivant pour la pose suivante et la pose 3 venant d'être coupée. L'intervalle maximal nécessaire G coïncide avec la différence entre la longueur de la pose 3 et la circonférence des outils 24, 26, 28, 29, 32 et 33.The laying 3 having just been cut is accelerated and driven by the second arrangement 62 and / or by the third arrangement 63 to reach the same speed 54 as that of the tools 24, 26, 28, 29, 32 and 33 of the transformation stations. 21, 22 and 23. A gap G is thus generated between the band 2 arriving for the next pose and the pose 3 just cut. The maximum gap required G coincides with the difference between the length of the pose 3 and the circumference of the tools 24, 26, 28, 29, 32 and 33.

Dans la troisième forme de réalisation de l'invention (voir Figures 8 à 10), une deuxième phase de diminution de la vitesse 56 du deuxième agencement 62 et/ou du troisième agencement 63 est effectuée avant la coupe suivante par le coupe-feuille 12, en raison de la position du deuxième agencement 62 et/ou du troisième agencement 63. Pendant cette phase de diminution de la vitesse 56, une longueur de bande 2 déterminée est accumulée en amont du deuxième agencement 49. Cette longueur de bande 2 est fonction de la différence de longueur entre la longueur de la pose 3 et la circonférence développée des outils 26, 27, 28, 29, 32 et 33.In the third embodiment of the invention (see Figures 8 to 10 ), a second phase of decreasing the speed 56 of the second arrangement 62 and / or the third arrangement 63 is performed before the next section by the cutter 12, because of the position of the second arrangement 62 and / or the third arrangement 63. During this phase of decreasing the speed 56, a determined strip length 2 is accumulated upstream of the second arrangement 49. This strip length 2 is a function of the difference in length between the length of the laying 3 and the developed circumference. tools 26, 27, 28, 29, 32 and 33.

Dans une troisième phase 57, la vitesse tangentielle du deuxième agencement 62 et/ou du troisième agencement 63 est constante, et est sensiblement égale à la vitesse de rotation des outils 13 et 14 du coupe-feuille 12. La coupe est réalisée pendant cette troisième phase 57.In a third phase 57, the tangential speed of the second arrangement 62 and / or the third arrangement 63 is constant, and is substantially equal to the speed of rotation of the tools 13 and 14 of the cutter 12. The cut is made during this third phase 57.

La présente invention concerne trois solutions techniques visant à réaliser l'unité de transformation 1, 47 et 61 qui, à partir du support en bande continue 2, permettent d'arriver à un support sous la forme de pose 3. Les trois solutions visent à garantir une vitesse de rotation constante des outils de transformation 21, 22 et 23 qui portent les couteaux ou les autres éléments de transformation tel que refoulage, gaufrage ou éjection des déchets malgré le fait que le format des ces outils soit en général plus grand que la répétition du format imprimé.The present invention relates to three technical solutions for realizing the transformation unit 1, 47 and 61 which, from the continuous web support 2, make it possible to arrive at a support in the form of pose 3. The three solutions aim at guaranteeing a constant rotation speed of the processing tools 21, 22 and 23 which carry the knives or the other transformation elements such as crushing, embossing or ejection of the waste, despite the fact that the format of these tools is generally larger than the repetition of the printed format.

La présente invention n'est pas limitée aux formes de réalisation décrites et illustrées. De nombreuses modifications peuvent être réalisées, sans pour autant sortir du cadre défini par la portée du jeu de revendications.The present invention is not limited to the embodiments described and illustrated. Many modifications can be made, without departing from the scope defined by the scope of the set of claims.

Claims (16)

  1. Conversion unit for converting a first continuous web substrate (2) into a second substrate in the form of converted blanks of predetermined length (3), the web (2) having a constant feed speed, comprising:
    - a first motorized arrangement (4) for producing a first run driving (F) of the web (2),
    - a sheeter (12) having rotary tools (13, 14) for cutting the web into blanks (3),
    - a second motorized arrangement (17) for producing a second run driving of the substrate (2, 3), the second motorized arrangement being positioned in the immediate proximity of the sheeter (12), and
    - at least one station (21, 22, 23) having rotary tools (26, 27, 28, 29, 32, 33) for converting the blanks (3),
    characterized in that a speed of rotation (38, 41) of the second arrangement (17) varies during a cycle of rotation of the tools (13, 14) of the sheeter (12), comprising:
    - a phase at constant tangential speed (46), substantially equal to the speed of rotation of the tools (13, 14) of the sheeter (12), the cut being made during this phase,
    - a speed reduction phase (43), during which a length of web (2), dependent on the difference between the length of the blank (3) and an extension of the periphery of the tools (26, 27, 28, 29, 32, 33), is kept upstream of the second motorized arrangement (17), and
    - a speed increase phase (44), during which the substrate (2, 3) is discharged downstream of the second arrangement (17).
  2. Unit according to Claim 1, characterized in that a speed of rotation of the tools (13, 14, 26, 27, 28, 29, 32, 33) of the sheeter (12) and of the conversion station (21, 22, 23) is constant and greater than the speed at which the web (2) is fed.
  3. Unit according to Claim 1 or 2, characterized in that the second arrangement (17) comprises:
    - a drive roll (18) driven in rotation, and
    - press means in the form of rollers (19), able to cooperate with the roll (18),
    the substrate (2) being engaged, held and driven between the drive roll (18) and the rollers (19).
  4. Unit according to one of the preceding claims, characterized in that the first arrangement (4) unrolls the web (2) at clocked speed, and in that the second arrangement (17) is inserted between the first arrangement (4) and the sheeter (12) and implements the speed reduction phase (43) after the cut and the speed increase phase (44) before the cut.
  5. Unit according to Claim 4, characterized in that the first arrangement (4) is a loop control arrangement (6, 7).
  6. Unit according to Claim 5, characterized in that the loop control arrangement comprises:
    - a primary drive roll (6) driven in rotation (R) and
    - a satellite roll (7) able to oscillate (O) about the primary roll (6) from upstream to downstream and vice versa,
    the web (2) being engaged and held between the primary roll (6) and the satellite roll (7) and passing cyclically from a constant speed to a zero speed at the output of the satellite roll (7) and vice versa.
  7. Unit according to one of Claims 1 to 3, characterized in that the first arrangement (48) unrolls the web (2) at constant speed, and in that the second arrangement (49) is inserted between the sheeter (12) and the conversion station (21) and implements the speed reduction phase (56) before the cut and the speed increase phase (53) after the cut.
  8. Unit according to Claim 7, characterized in that the first arrangement (48) is mechanically similar to the second arrangement (49).
  9. Unit according to Claim 7 or 8, characterized in that the first arrangement (48) and the sheeter (12) are mounted in a longitudinally movable manner (L) so as to vary the distance between the sheeter (12) and the conversion station (21) in accordance with the length of the blank (3).
  10. Unit according to Claim 7 or 8, characterized in that it comprises a third motorized arrangement (63) for driving the substrate (2, 3), said third arrangement being inserted between the sheeter (12) and the second arrangement (62).
  11. Unit according to Claim 10, characterized in that the second arrangement (48) is mounted so as to be longitudinally movable (T) so as to vary the distance between the second arrangement (62) and the sheeter (12) in accordance with the length of the blank (3).
  12. Unit according to Claim 10 or 11, characterized in that the third arrangement (63) is mechanically similar to the second arrangement (62).
  13. Unit according to one of Claims 10 to 12, characterized in that the third arrangement (63) is able to be disconnected (U, D) in accordance with the length of the blank (3).
  14. Unit according to one of the preceding claims, characterized in that the conversion station is a station for cutting blanks into boxes (22), and/or a station for embossing blanks (21), and/or a station for creasing blanks (22) and/or a waste material removal station (23).
  15. Unit according to one of the preceding claims, characterized in that the rotary tools (13, 14, 26, 27, 28, 29, 32, 33) of the sheeter (12) and/or of the conversion station (21, 22, 23) are mounted in a cassette.
  16. Packaging production machine, characterized in that it comprises a unit (1, 47, 61) according to one of the preceding claims, inserted between at least one printer group and a blank separator.
EP14726326.3A 2013-05-29 2014-05-22 Processing unit of a continuous-strip support and machine for producing packaging provided therewith Active EP3003703B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14726326.3A EP3003703B1 (en) 2013-05-29 2014-05-22 Processing unit of a continuous-strip support and machine for producing packaging provided therewith

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13002773 2013-05-29
EP14726326.3A EP3003703B1 (en) 2013-05-29 2014-05-22 Processing unit of a continuous-strip support and machine for producing packaging provided therewith
PCT/EP2014/001389 WO2014191095A1 (en) 2013-05-29 2014-05-22 Unit for transforming a substrate in a continuous band and wrapping production machine equipped with same

Publications (2)

Publication Number Publication Date
EP3003703A1 EP3003703A1 (en) 2016-04-13
EP3003703B1 true EP3003703B1 (en) 2017-08-23

Family

ID=48577466

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EP14726326.3A Active EP3003703B1 (en) 2013-05-29 2014-05-22 Processing unit of a continuous-strip support and machine for producing packaging provided therewith

Country Status (7)

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US (2) US20160121572A1 (en)
EP (1) EP3003703B1 (en)
JP (1) JP6178502B2 (en)
CN (1) CN105246675B (en)
ES (1) ES2641240T3 (en)
TW (1) TWI607930B (en)
WO (1) WO2014191095A1 (en)

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US11449290B2 (en) 2017-07-14 2022-09-20 Georgia-Pacific Corrugated Llc Control plan for paper, sheet, and box manufacturing systems
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Also Published As

Publication number Publication date
TWI607930B (en) 2017-12-11
CN105246675B (en) 2018-08-07
EP3003703A1 (en) 2016-04-13
US11577482B2 (en) 2023-02-14
WO2014191095A1 (en) 2014-12-04
US20200298436A1 (en) 2020-09-24
CN105246675A (en) 2016-01-13
TW201504113A (en) 2015-02-01
ES2641240T3 (en) 2017-11-08
JP2016522104A (en) 2016-07-28
US20160121572A1 (en) 2016-05-05
JP6178502B2 (en) 2017-08-09

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