EP3934903A1 - Unite de façonnage d'élément en plaque pour la fabrication de caisses pliantes - Google Patents
Unite de façonnage d'élément en plaque pour la fabrication de caisses pliantesInfo
- Publication number
- EP3934903A1 EP3934903A1 EP20710037.1A EP20710037A EP3934903A1 EP 3934903 A1 EP3934903 A1 EP 3934903A1 EP 20710037 A EP20710037 A EP 20710037A EP 3934903 A1 EP3934903 A1 EP 3934903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shafts
- plate member
- pair
- slitting
- plate
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 238000005520 cutting process Methods 0.000 claims abstract description 45
- 238000012545 processing Methods 0.000 claims description 66
- 238000007493 shaping process Methods 0.000 claims description 36
- 238000009434 installation Methods 0.000 claims description 9
- 238000004806 packaging method and process Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 206010064031 Limb crushing injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007647 flexography Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B26D11/00—Combinations of several similar cutting apparatus
-
- 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
- B31B50/20—Cutting sheets or blanks
-
- 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
- B31B50/20—Cutting sheets or blanks
- B31B50/22—Notching; Trimming edges of flaps
-
- 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
- B31B50/25—Surface scoring
- B31B50/256—Surface scoring using tools mounted on a drum
-
- 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
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
- B31B2120/302—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing collapsible into a flat condition
-
- 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
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/70—Construction of rigid or semi-rigid containers having corrugated or pleated walls
Definitions
- the present invention relates generally to the field of packaging. More particularly, the invention relates to a plate member forming unit for the manufacture of folding boxes, from plate members, for example, corrugated cardboard.
- cardboard boxes are commonly made from plate elements in the form of sheets of cardboard or corrugated cardboard.
- the sheet elements are processed in a continuous flow in a packaging production line where they are printed, cut and upset, folded and assembled by gluing, to form the boxes.
- the plate elements 1 are introduced into the production line in a so-called "transverse" arrangement and are driven continuously in a drive direction DA.
- the plate element 1 is successively processed by a printing unit, a plate element shaping unit formed here of a so-called “slotter” unit, and a folder-gluer unit.
- the printing unit prints, typically by flexography, the plate member 1.
- the printed plate member 1 a is then processed by the plate member forming unit which essentially slits 10 and upsets 11 for fold lines, to create body flanks 12 and body flaps 13.
- the cut plate member 1b supplied by the plate member forming unit, is then folded and glued in the folder-gluer unit to obtain a 1c package in the form of a folding crate.
- a count-ejection unit receives the folding boxes 1 c and forms a stack of folding boxes 1 d which is then tied up.
- the tied stack 1 e then goes to a palletizer at the end of the manufacturing line of packaging.
- the integration of a plate element forming unit of the type of that described in document WO 2013/029768 makes it possible to achieve high production rates of folding boxes, up to around 20,000 boxes / hour.
- This plate member forming unit has four pairs of rotating cylindrical shafts which are arranged transversely to the driving direction of the plate members.
- the cylindrical shafts rotate at high speed and perform the various treatment operations on the plate elements.
- the majority of cuts are made in the direction of driving the plate members into the unit.
- the shapes and dimensions of the slits are determined by cutting tools, mounted on cylindrical tool-holder shafts, which provide rotary cutting.
- the movement of the plates is continuous between the cylindrical tool-holder shafts and the counter-tool cylindrical shafts.
- the cylindrical against-tool shafts are arranged in parallel and facing the cylindrical tool-holder shafts, to cooperate with the latter.
- Rotary cutting tools have laterally spaced blades arranged to create slits at and from front and rear edges (see items 14 and 15 in Fig. 1) of the plate member.
- the plate member shaping unit also includes laterally spaced rotary upsetting tools arranged to create the fold lines on the plate member.
- a control unit controls the rotational drive motors of the cylindrical shafts, so that, for the processing of a plate member, the tools are in contact with corresponding predetermined regions of the plate member and are driven. a processing speed whose tangential component is equal to the drive speed of the plate member.
- the driving speed of the plate member is substantially constant between the input and the output of the plate member forming unit.
- a lateral bonding tab 16 (Fig. 1) is also cut from the plate element, as an extension of the body sides 12 (Fig. 1). After folding, this tab is glued to the opposite side of the body, in order to form the folding box 1 c (Fig. 1).
- specific tooling is provided in the unit for shaping the plate element, arranged so as to make two transverse cuts, or in skew, with respect to the direction of feed of the plate member, as well as a first slit from the trailing edge and a second slit from the leading edge.
- Document EP2228206 describes a packaging manufacturing line comprising a shaping unit having several rotating shafts, on which shaping tools are arranged.
- each shaping shaft includes several shaping tools. This allows each forming cylinder to make several spatially separate cuts on a sheet of cardboard.
- This device presents a complexity when it comes to changing the format of the folding boxes, and requires the operator of the packaging machine to change the positions of the cutting elements (the knife blades) on the rotating shafts.
- the invention relates to a plate element shaping unit for the continuous flow manufacture of folding boxes from plate elements, the plate elements being successively inserted into the unit.
- shaping and moving in a driving direction comprising pairs of rotating cylindrical shafts, carrying a shaping tool, which shapes the plate elements by slitting, upsetting and cutting operations, characterized in that it comprises a cutting unit, and in which the pairs of rotating cylindrical shafts and the cutting unit cooperate to achieve, in the shaped plate member, first and second juxtaposed folding box poses, and in which two pairs of shafts cooperating to produce in each plate member central slits aligned on a transverse central axis of the plate member, and two pairs of shafts cooperating to produce respectively rear edge slits of a rear installation and front edge slits of a front installation, and in which said shafts each carry only one slitting tool, and in which angular position d at least one of the slitting shafts is adjustable with respect to the advancing position in the driving direction
- each slitting shaft carries only one slitting tool and the angular position is adjustable allows the sizes of the folding boxes to be changed.
- the angular position of all the slitting shafts is adjustable.
- the angular position of the cylinder can be defined as the position of a (predefined) reference point on the circumference of the slitting cylinder in relation to the driving surface on which the plate elements are transported. This angle is measured between the reference point on the slitting roll, the axis of the slitting roll, and the drive surface of the plate.
- the angular position can be adjusted by rotating the cylinder with the tools remaining stationary on the cylinder. This rotation can be done automatically by a position variator.
- the advancing position of the plate member can be defined by the current position of the first leading edge of the plate member (the sheet of cardboard) in the feed direction.
- the cutting unit comprises a perforation blade perpendicular to the driving direction, and which allows the first and the second juxtaposed folding box pose to be associated in series, and interconnected by attachment points.
- the plate element shaping unit comprises a pair of rotating cylindrical shafts arranged so as to carry out cutting operations of a body leg of a rear laying and pre operations. - upsetting of fold lines in both poses.
- the plate element shaping unit comprises a pair of rotating cylindrical shafts arranged so as to carry out cutting operations of a body leg of a front laying, and operations of upsetting of fold lines in the two poses, and a pair of rotating cylindrical shafts arranged to perform crushing operations of the two poses.
- the plate member forming unit comprises first and second plate member processing units, associated in series, and having the same architecture with the pairs of rotating cylindrical shafts.
- first and second plate member processing units each comprise four pairs of rotating cylindrical shafts aligned and arranged transversely to the drive direction, the first and second processing units d 'plate member being associated to form an alignment of eight pairs of rotating cylindrical shafts.
- the second and fourth pairs of rotating cylindrical shafts of the first plate element processing unit cooperate to produce in the treated plate element central slits aligned on a longitudinal central axis of the 'processed plate element, the second pair of rotating cylindrical shafts comprising a rotating cylindrical shaft tool holder carrying a first slitting tool, arranged to produce first central slitting portions, and the fourth pair of shafts rotary cylindrical comprising a rotary cylindrical tool-holder shaft carrying a second rotary tool, arranged so as to produce second central slitting portions, each central slit being formed from the combination of a first central slit portion and a second central slit portion and having a length determined by an overlap area between the first and second central slit portions which is defined by settings angular position of the first and second rotary tools.
- the trees are preferably independent and for a chosen blade length, the system has no limitation on the portions to be cut, due to the independence of the trees (a single blade on each tree), and due to the fact of the angular position of each of the shafts. This allows an infinite amount of overlap area ranging from the minimum length of a blade, up to the maximum length of the sum of the 2 blades.
- the plate member forming unit comprises a first body tab cutter mounted on the third pair of rotating cylindrical shafts of the first plate member processing unit, the box leg cutter performing cutting operations of a first box leg on a proximal side edge of the processed plate member.
- the plate element forming unit comprises a pre-upsetting device mounted on the third pair of rotating cylindrical shafts of the first plate element processing unit, the device for pre-upsetting performing pre-upsetting operations on the processed plate member in order to achieve fold lines in the first and second poses of the folding box.
- the second pair of rotating cylindrical shafts of the second plate element processing unit (2O2) comprises a rotating cylindrical shaft tool holder carrying a third slitting tool, arranged so to perform trailing edge slits in the processed plate member
- the fourth pair of rotating cylindrical shafts of the second plate member processing unit comprises a rotating cylindrical shaft shaft carrying a fourth tooling tool. slitting, arranged to make leading edge slits in the treated plate member.
- the plate member forming unit comprises a second body tab cutter mounted on the third pair of rotating cylindrical shafts of the second plate member processing unit, the box leg cutter performing cutting operations of a second box leg on the proximal side edge of the processed plate member.
- the plate member forming unit comprises a final upsetting device mounted on the third pair of rotating cylindrical shafts of the second plate member processing unit, the upsetting device final performing final upsetting operations on the treated plate element in order to complete the production of the folding lines in the first and second poses of the folding box.
- the plate member forming unit comprises an edge knife mounted in one of the first and second plate member processing units and arranged to perform a cutting operation. edge on a distal side edge of the processed plate member, the first pair of rotating cylindrical shafts of the first plate member processing unit has means for driving the processed plate member, and the The first pair of rotating cylindrical shafts of the second plate member processing unit has a crushing device arranged to thickly crush a proximal side strip and a distal side strip of the processed plate member.
- the cutting unit is a rotary cutter with rotating cylindrical shafts.
- FIG. 1 is a diagram showing a manufacturing process of folding box packaging of the prior art
- FIG. 2 is a diagram showing different processing states of a plate member in a folding case packaging manufacturing process using the unit according to the present invention
- FIG. 3 is a diagram showing a general architecture of a plate member forming unit according to the present invention.
- FIG. 4 is a diagram showing examples of central slits of different lengths achievable in a plate member with the plate member forming unit of FIG. 3;
- FIG. 5 is a diagram showing examples of plate members achievable with the plate member forming unit of FIG. 3 for the manufacture of folding boxes of different formats.
- the longitudinal direction is defined with reference to the direction of travel or drive of the plate elements in the packaging manufacturing line, along their median longitudinal axis.
- the transverse direction is defined as being the direction perpendicular in a horizontal plane to the direction of travel of the plate elements.
- the upstream and downstream directions are defined with reference to the direction of movement of the plate elements, along the longitudinal direction in the entire packaging manufacturing line, from the entry of the line to the exit of the line.
- the proximal and distal edges of the plate member are defined in this non-limiting example with respect to the conductive side and the opposite conductive side of the machine and the sheet processing unit when the sheet is scrolled in the horizontal plane. .
- FIG. 3 The general architecture of the plate element forming unit 2 is visible in FIG. 3.
- the plate member forming unit 2 is shown associated with a cutting unit 21, the function of which will become clear from the following description.
- the plate elements in their different processing states are generally referenced by the reference 3 in Figs. 2 and 3, with index letters A, B0, B and C associated with mark 3 which indicate the state of treatment of the plate element considered.
- the plate member 3 is shown in FIG. 2 in different processing states explained above, with references 3A, 3B, and 3c.
- the driving direction of the plate members 3 in the plate member forming unit 2, and in the packaging manufacturing line in which it is included, from upstream to downstream is indicated by the arrow FD in Figs. 2 and 3.
- the plate members 3 are conveyed and processed in the plate member forming unit 2 keeping a transverse arrangement, that is, with their longitudinal central axis AL which is perpendicular to the line. FD drive direction.
- the plate member 3A shown in FIG. 2, is typically formed from a rectangular plate, for example here of corrugated cardboard, which must be treated to form two folding boxes CA1 and CA2.
- the plate element 3A for example here is a plate element which has been printed by a printing unit placed upstream of the plate element forming unit 2 in a packaging production line.
- the printed plate element 3A here comprises two printed zones 30i and 30 2 , located on either side of the longitudinal central axis AL of the plate element.
- the printed areas 30i and 30 2 belong respectively to two poses P1 and P2 in the plate element.
- the two poses P1 and P2 correspond respectively to the folding boxes CA1 and CA2, to be produced from the plate element, using the shaping unit of plate element 2.
- the poses P1 and P2 are arranged transversely, in juxtaposition, with respect to the drive direction FD.
- the plate member forming unit 2 receives the printed plate member 3A as input, processes it and outputs a shaped plate member 3B in which processing operations have been carried out to obtain of the two poses P1 and P2.
- the treatment operations include in particular slitting, cutting and upsetting operations, to form body sides 31, body flaps 32 and two body tabs 33i and 33 2 for the poses P1 and P2 of the element in plate.
- the shaped plate element 3B has central slits 34i 2 and front edge slits 34i and rear edge slits 34 2 .
- the central slits 34i 2 are aligned along the longitudinal central axis AL and participate in the formation of the body sides 31 and the body flaps 32 of the poses P1 and P2.
- the front edge slits 34i are made on a longitudinal front edge 35AV of the plate element and participate in the formation of the body sides 31 and the body flaps 32 of the installation P1.
- the rear edge slits 34 2 are made on a longitudinal rear edge 35AR of the plate element and participate in the formation of the body sides 31 and the body flaps 32 of the installation P2.
- the box legs 33i and 33 2 are made on the proximal side edge 38 of the plate member.
- the shaped plate member 3B also has upsets 36 for making future fold lines, performed by upsetting operations in the plate member 2 forming unit.
- the plate member 3c is obtained after the processing operation performed by the cutting unit 21 on the plate member 3B.
- the cutting unit 21 makes selective cuts to form the attachment points 37.
- the plate element 3c thus comprises the poses P1 and P2 which are no longer connected except by the attachment points 37.
- the plate element 3c is then processed by a folder-gluer unit (not shown) which performs a folding and glues the box legs 33i and 33 2 on the corresponding box sides to obtain a folded assembly 4 formed of of them CA1 and CA2 folding boxes connected by the attachment points 37, the two folding boxes CA1 and CA2, corresponding respectively to the poses P1 and P2.
- a folder-gluer unit (not shown) which performs a folding and glues the box legs 33i and 33 2 on the corresponding box sides to obtain a folded assembly 4 formed of of them CA1 and CA2 folding boxes connected by the attachment points 37, the two folding boxes CA1 and CA2, corresponding respectively to the poses P1 and P2.
- the angular position of at least one of the slitting shafts 2011, 203i, 2012, 203 2 is adjustable relative to the position of advance in the driving direction (FD) of the plate member.
- the angular position a can be defined as the position of a reference point P (predefined) on the circumference of the slitting shaft 2011, 203i, 2012, 203 2 in relation to the driving surface S on which the elements in plates 3 are transported. This angle a is measured between the reference point P on the cylinder / slitting shaft 2011, 203i, 2012, the axis of the slitting cylinder X, and the driving surface of the plate S.
- the plate elements are inserted successively, one by one, into the plate element shaping unit 2 to be processed there, with an insertion rate corresponding to a machine pitch on which the various equipment is synchronized. of the packaging manufacturing line, various equipment including unit 2.
- the plate element shaping unit 2 is formed by the series association of two plate element processing units 20i and 2O2, called “slotter", having the same general architecture.
- the first unit 20i is passed through before the second plate member processing unit 2O2 by the plate member moving in the drive direction FD.
- the two plate element processing units 20i and 2O2 are of the type described in document WO 2013/029768.
- the performance of the processing operations on the plate element is optimized, by distributing these judicious processing operations between the two plate member processing units 20i and 202.
- the plate element processing units 20i and 2O2 here each comprise four pairs of rotating cylindrical shafts.
- the plate element forming unit 2 formed by the association of the plate element processing units 20i and 2O2 therefore comprises eight pairs of rotating cylindrical shafts, marked 200i to 203i for the first processing unit of plate element 20i and 2OO2 to 203 2 for the second unit 2O2.
- the eight pairs of rotating cylindrical shafts, 200i to 203i and 2OO2 to 203 2 are spaced apart from each other by the same center distance AX.
- the length of the center-to-center distance AX typically corresponds to a minimum plate member format that can be processed in the plate member forming unit 2.
- the first plate member processing unit 20i processes the plate member 3A to produce a pre-formed plate member 3BO visible in FIG. 3.
- the first pair of rotating cylindrical shafts 200i are dedicated to drive the plate member.
- the pre-shaped plate element 3BO comprises the central slits 34i 2 which have been cut by suitable tools 511 and 53i respectively equipping the second and fourth pairs of rotating cylindrical shafts 2011 and 203i.
- the tools 511 and 53i are carried respectively by rotary tool holder shafts (upper cylindrical shafts) of the second and fourth pairs of rotary cylindrical shafts 2011 and 203i.
- the tools 511 and 53i typically each comprise cutting blades conforming to the cylindrical shape of the rotary tool holder shafts.
- a plurality of cutting blades are transversely spaced and mounted in correspondence with central positions PC1 to PC4 defined in the plate member 3BO, on the longitudinal central axis AL, at which are to be make the central slits 34i 2 .
- the tools 51 1 and 53i are arranged and mounted on their respective rotary tool-holder shafts so as to be able to adjust a length L of the central slits 34i 2 in the plate element 3BO, and thus configure the unit 2 for different folding box formats.
- the length L of the central slits 34i 2 is adjusted by modifying the angular position (a) of the tools 511 and 53i on their respective rotary tool-holder shafts.
- FIG. 4 three central slits 34Ai 2 , 34B- I2 and 34C- I2 , having respective lengths LA, LB and Le, produced by unit 2 with the same set of tools 511 and 53i.
- These three central slits 34Ai 2 , 34Bi 2 and 34Ci 2 are obtained with three separate adjustment configurations of the tools 511 and 53i for different folding boxes, respectively.
- the tools 511 and 53i are similar and respectively cut slitting portions PRi and PR 3 , having the same length LO.
- the length LO is considered here equal to 150 mm.
- Tools 511 and 53i may also have a different development.
- the central slitting 34Ai 2 of length LA is the slitting of maximum length which is achievable with the tools 511 and 53i.
- the tools 511 and 53i are mounted on their respective rotary tool-holder shafts at first angular positions which make it possible to obtain the central slitting 34Ai 2 without overlapping between the slitting portions PR 1 and PR 3 .
- the central slitting 34Bi 2 of length LB is a slitting of intermediate length which is achievable with the tools 511 and 53i.
- the tools 511 and 53i are mounted on their respective rotary tool-holder shafts at second angular positions which make it possible to obtain the central slitting 34Bi 2 with a partial overlap of LO / 3 between the slitting portions.
- LO - LO / 3 250 mm.
- the central slitting 34Ci 2 of length Le is a slitting of minimum length which is achievable with the tools 511 and 53i.
- the tools 511 and 53i are mounted on their respective rotary tool-holder shafts at third angular positions which make it possible to obtain the central slitting 34Ci 2 with a total overlap of LO between the slitting portions PR 1 and PR3.
- the plate element shaping unit 2 according to the invention therefore allows, with different angular adjustments of the same set of tools 511 and 53i, the production of central slits 34i 2 having a length L of between 2.
- LO and LO that is, in the example above, a length L between 150 mm and 300 mm.
- the first plate member processing unit 20i also performs first complementary processing operations which are performed by tool devices associated with the third pair of rotating cylindrical shafts 202i.
- These first complementary processing operations include operations for cutting the body lug 33 2 of the installation P2 and pre-upsetting operations for carrying out the pre-upsetting 36 of the future bending lines in the poses P1 and P2.
- a cutting device 52i mounted on the tool-holder shaft of the third pair of rotary cylindrical shafts 202i, is provided to perform the cutting operations of the body tab 33 2 on the proximal lateral edge 38 of the plate element.
- the cutter 52i provides angled cuts of the front and rear edges of the body tab 33 2 , as seen on the pre-formed plate member 3BO in FIG. 3.
- a pre-upsetting device (not shown) is also mounted on the third pair of rotating cylindrical shafts 202i. This pre-upsetting device performs pre-upsetting 36 on the plate member. The plate element is thus partially crushed in thickness along continuous lines, in order to achieve the fold lines in the poses P1 and P2.
- the second plate member processing unit 20 2 processes the plate member 3BO and outputs the shaped plate member 3B visible in Figs. 2 and 3.
- the second plate member processing unit 2O2 supplements the processing operations carried out in the first plate member processing unit 20i with other processing operations in order to complete the shaping of the member. in plate.
- the second plate element processing unit 20 2 performs the front edge slits 34i and the rear edge slits 34 2 , as well as second additional processing operations.
- the front edge slits 34i and the rear edge slits 34 2 are cut respectively by suitable tools 53 2 and 512, visible in FIG. 3, respectively equipping the fourth and second pairs of rotating cylindrical shafts 203 2 and 2012 of the second plate element processing unit 2O2.
- the tools 53 2 and 512 are carried respectively by rotary tool shafts (upper cylindrical shafts) of the fourth and second pairs of rotary cylindrical shafts 203 2 and 2012 of the second plate element processing unit 2O2, and are similar to tools 511 and 53i, used for center slits 34i2.
- the tools 512 and 53 2 are arranged and mounted on their respective rotary tool-holder shafts so as to be able to adjust a length of the front and rear edge slits 34i and 34 2 equal to half L / 2 of the length L of the central slits 34i 2 .
- the length L / 2 of the front and rear edge slits 34i and 34 2 is adjusted by modifying the angular position of tools 512 and 53 2 , on their shafts respective rotary tool holders, so as to configure the unit 2 for different folding box formats.
- the second additional processing operations include cutting operations of the body lug 33i of the installation P1, final upsetting operations to complete the production of upsets 36 of the folding lines in the poses P1 and P2, a first box leg crushing operation, a second distal side edge crushing operation 39, and an edge cutting operation on a distal side edge 39 of the plate member.
- the second complementary processing operations use tool devices associated with the third pair of rotating cylindrical shafts 2022 and with the first pair of rotating cylindrical shafts 2002 of the second plate member processing unit 202.
- a cutting device 52 2 mounted on the tool-holder shaft of the third pair of rotary cylindrical shafts 202 2 , is provided to perform the cutting operations of the body tab 33i on the proximal side edge 38 of the plate element.
- the cutter 52 2 provides angled cuts of the front and rear edges of the body tab 33i, as seen on the pre-shaped plate member 3B in FIG. 3.
- a final upsetting device (not shown) is mounted on the third pair of rotating cylindrical shafts 202 2 .
- This final upsetting device completes the pre-upsetting operations carried out in the first plate element processing unit 20i in order to obtain a desired final value, for the upsetting rate TR of the bending lines.
- a first body lug crushing device (not shown) is mounted on the first pair of rotary cylindrical shafts 200 2 of the second plate element processing unit 2O 2 .
- This first body lug crushing device thickens a proximal side strip of the plate member, at the proximal side edge 38, the width of this proximal strip being substantially equal to the width of the body lugs 33i and 33 2 .
- a second crushing device crushes in thickness a distal side strip of the plate element, at the level of the distal lateral edge 39. The crushing of this proximal strip and of this distal strip make it possible to obtain box legs 33i and 33. 2 and the opposite distal lateral edge 39 having a reduced thickness, in order to subsequently avoid an extra thickness in the folded assembly 4 (cf. FIG. 2), at the level of the gluing of the tabs on the corresponding body sides.
- the edge cutting operation on the distal lateral edge 39 of the plate element is carried out by an edge knife (not shown) installed in the second plate element processing unit 2O 2 .
- the cutting unit 21 is located downstream of the second plate member processing unit 2O 2 to receive the shaped plate member 3B.
- the cutting unit 21 is typically a rotary cutter with cylindrical shafts.
- the cutting unit 21 outputs the plate element 3c incorporating the attachment points 37 between the poses P1 and P2.
- the plate member forming unit 2 according to the present invention is designed with a modular approach. In fact, the plate element forming unit 2 is produced by combining two similar plate element processing units which may be modular equipment for a packaging manufacturing line.
- the plate member forming unit 2 is designed to allow maximum flexibility for the manufacture of folding boxes of different formats.
- FIG. 5 shows three shaped plate elements, FC1, FC2 and FC3, achievable with the plate element forming unit 2 and corresponding to folding boxes of different formats.
- the plate elements FC1 and FC2 have different widths, 800 mm and 650 mm respectively, but with slits of the same dimensions, 240 mm and 120 mm respectively for the central slits and the edge slits.
- the plate elements FC2 and FC3 have the same width of 650 mm, but with slits of different dimensions, FC3 having central slits and edge slits of 160 mm and 80 mm respectively.
- the shaping unit as well as the plate member shaping assembly according to the invention enables the production rate of folding boxes to be substantially increased over the prior art.
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Abstract
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1902391A FR3093466A1 (fr) | 2019-03-08 | 2019-03-08 | Unite de façonnage d’élément en plaque pour la fabrication de caisses pliantes |
PCT/EP2020/025114 WO2020182347A1 (fr) | 2019-03-08 | 2020-03-06 | Unite de façonnage d'élément en plaque pour la fabrication de caisses pliantes |
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Publication Number | Publication Date |
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EP3934903A1 true EP3934903A1 (fr) | 2022-01-12 |
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ID=67107838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP20710037.1A Pending EP3934903A1 (fr) | 2019-03-08 | 2020-03-06 | Unite de façonnage d'élément en plaque pour la fabrication de caisses pliantes |
Country Status (5)
Country | Link |
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US (1) | US20220176669A1 (fr) |
EP (1) | EP3934903A1 (fr) |
CN (1) | CN113784834B (fr) |
FR (1) | FR3093466A1 (fr) |
WO (1) | WO2020182347A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024141280A1 (fr) | 2022-12-28 | 2024-07-04 | Bobst Lyon | Dispositif de découpe de rabats pour machine de transformation |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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FR3093465A1 (fr) * | 2019-03-08 | 2020-09-11 | Bobst Lyon | Ligne de fabrication d’emballages sous la forme de caisses pliantes |
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FR1269802A (fr) * | 1960-07-06 | 1961-08-18 | Renault | Dispositif de distribution pour moteur rotatif |
DE2405557A1 (de) * | 1974-02-06 | 1975-08-07 | Volkswagenwerk Ag | Rotationskolben-brennkraftmaschine |
US3916186A (en) * | 1974-04-22 | 1975-10-28 | William H Raser | Spinning-vane shaft position encoder |
US4860704A (en) * | 1985-10-15 | 1989-08-29 | Slaughter Eldon E | Hinge valved rotary engine with separate compression and expansion sections |
US4934231A (en) * | 1989-04-10 | 1990-06-19 | W. R. Chestnut Engineering, Inc. | Rotary die-cutting apparatus |
US5158522A (en) * | 1991-09-20 | 1992-10-27 | Marquip, Inc. | Slitting corrugated paperboard boxes |
SE514189C2 (sv) * | 1998-04-29 | 2001-01-22 | Emba Machinery Ab | Slitsenhet för kartongämnestillverkning |
JP2002067190A (ja) * | 2000-08-29 | 2002-03-05 | Isowa Corp | 段ボールシート製函機のスロッタ |
JP5297704B2 (ja) * | 2008-07-01 | 2013-09-25 | 三菱重工印刷紙工機械株式会社 | 段ボールシートの製函装置 |
FR2979328B1 (fr) | 2011-08-31 | 2014-05-16 | Martin | Dispositif pour traiter un element en plaque, unite de traitement et machine de fabrication d'emballage |
KR101922495B1 (ko) * | 2013-04-25 | 2018-11-27 | 주식회사 만도 | 토크 신뢰성 제공 방법 및 제어 장치 |
JP6156981B2 (ja) * | 2013-05-02 | 2017-07-05 | 株式会社Isowa | 段ボールシート製函機 |
JP6271903B2 (ja) * | 2013-08-06 | 2018-01-31 | キヤノン株式会社 | サーボ装置、及びサーボ装置の制御方法 |
JP6529778B2 (ja) * | 2015-02-17 | 2019-06-12 | 三菱重工機械システム株式会社 | スロッタ装置及びシートの溝切り加工方法、製函機 |
JP6889983B2 (ja) * | 2015-12-24 | 2021-06-18 | 三菱重工機械システム株式会社 | スロッタ装置及びスロッタの位置決め方法、製函機 |
KR101752096B1 (ko) * | 2016-07-04 | 2017-06-28 | 주식회사 현대케피코 | 부품 내장형 액추에이터 및 이를 적용한 연속 가변 밸브 듀레이션 시스템과 밸브 트레인 시스템 |
US11866187B1 (en) * | 2022-10-14 | 2024-01-09 | Beta Air, Llc | Electric propulsion system with power harvesting system |
-
2019
- 2019-03-08 FR FR1902391A patent/FR3093466A1/fr not_active Withdrawn
-
2020
- 2020-03-06 CN CN202080031145.1A patent/CN113784834B/zh active Active
- 2020-03-06 US US17/593,008 patent/US20220176669A1/en active Pending
- 2020-03-06 EP EP20710037.1A patent/EP3934903A1/fr active Pending
- 2020-03-06 WO PCT/EP2020/025114 patent/WO2020182347A1/fr active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024141280A1 (fr) | 2022-12-28 | 2024-07-04 | Bobst Lyon | Dispositif de découpe de rabats pour machine de transformation |
Also Published As
Publication number | Publication date |
---|---|
FR3093466A1 (fr) | 2020-09-11 |
CN113784834A (zh) | 2021-12-10 |
WO2020182347A1 (fr) | 2020-09-17 |
US20220176669A1 (en) | 2022-06-09 |
CN113784834B (zh) | 2023-08-29 |
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