EP2221170A1 - Appareil et procédé pour la couverture d'une boîte dont la paroi inférieure comporte plus de quatre côtés - Google Patents

Appareil et procédé pour la couverture d'une boîte dont la paroi inférieure comporte plus de quatre côtés Download PDF

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Publication number
EP2221170A1
EP2221170A1 EP10151991A EP10151991A EP2221170A1 EP 2221170 A1 EP2221170 A1 EP 2221170A1 EP 10151991 A EP10151991 A EP 10151991A EP 10151991 A EP10151991 A EP 10151991A EP 2221170 A1 EP2221170 A1 EP 2221170A1
Authority
EP
European Patent Office
Prior art keywords
box
lateral wall
covering
station
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10151991A
Other languages
German (de)
English (en)
Other versions
EP2221170B1 (fr
EP2221170B8 (fr
Inventor
Gino Bassi
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.)
Emmeci SpA
Original Assignee
Emmeci SpA
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Filing date
Publication date
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Publication of EP2221170A1 publication Critical patent/EP2221170A1/fr
Publication of EP2221170B1 publication Critical patent/EP2221170B1/fr
Application granted granted Critical
Publication of EP2221170B8 publication Critical patent/EP2221170B8/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/62—External coverings or coatings
    • 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
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • 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
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
    • 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
    • B31B2120/50—Construction of rigid or semi-rigid containers covered or externally reinforced
    • B31B2120/501—Construction of rigid or semi-rigid containers covered or externally reinforced by applying wrapping material only on the side wall part of a box
    • 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
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • B31B50/46—Folding sheets, blanks or webs by plungers moving through folding dies and interconnecting side walls
    • 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
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/73—Uniting opposed surfaces or edges; Taping by mechanically interlocking integral parts, e.g. by tongues and slots
    • B31B50/732—Uniting opposed surfaces or edges; Taping by mechanically interlocking integral parts, e.g. by tongues and slots by folding or tucking-in locking flaps

Definitions

  • the subject-matter of this invention is an apparatus and a process for covering a box having a bottom wall with more than four sides.
  • the invention relates to the technical field of industrial processing for covering finely finished, quality boxes.
  • the boxes in question are made from specially shaped sheets of paperboard or cardboard, known as blanks.
  • the boxes are formed from flat blanks consisting of a base and a plurality of faces connected to the base and designed to be folded relative to the base to form a lateral wall of the box.
  • the industrial process leading to the finished box comprises two distinct stages: a stage of erecting the box, followed by a stage of covering the box by applying a covering sheet (or lining) to it.
  • This invention relates specifically to the stage of covering the box.
  • the box to be covered is a box with a bottom wall having more than four sides and a lateral wall with as many faces.
  • the covering sheets are in turn specially shaped sheets that constitute covering blanks.
  • the covering blank is a flat blank having a base shaped like the bottom wall of the box and segments (that is, lateral portions) connected to the base and designed to be folded in such a way as to cover the lateral wall of the box.
  • the number of segments of the covering blank is equal to the number of sides of the base and each segment is connected to a respective side of the base.
  • This type of blank may be generally referred to as "petalled”, like a flower. It should be noted that in petalled covering blanks, all the segments are substantially the same in size, except for fold over lips, where present.
  • each segment of the covering blank defines two lateral edges.
  • the number of lateral edges (of the petals) is twice the number of sides of the base of the covering blank (which is equal to the number of sides of the bottom wall of the box and the number of lateral edges of the lateral wall of the box).
  • some of the segments of the covering blank are provided with lips (for folding over laterally), that is to say, laterally protruding flaps of the covering blank.
  • the lip of one segment applied to the lateral wall of the box to cover one face completely also covers a limited portion of another face (of the lateral wall of the box) adjacent to the fully covered face (the portion covered by the lip runs along the edge at the intersection between the two faces); that way, all the edges of the lateral wall of the box are covered completely without leaving any part uncovered.
  • At least one further segment is folded in order to cover that face completely; the further segment thus overlaps the previously folded lip.
  • the box covering process can thus be divided into the following steps.
  • a layer of glue is applied to the covering blank.
  • the box to be covered is placed on the covering blank previously glued (that is, pre-glued) in such a way that the bottom of the box adheres to the base of the covering blank.
  • the covering blank segments provided with lips are then folded (from a horizontal position, where they lie in the same plane as the base, to a vertical position) to cover respective portions of the lateral wall of the box.
  • the remaining segments of the covering blank are folded (from the horizontal position to the vertical position) to overlap the folded lips.
  • a flap of the covering blank protruding vertically upwards (that is on the opposite side to the bottom wall) is folded onto the inside of the box so as to cover the free upper edge.
  • the box covering system currently used based on the use of petalled covering blanks has the disadvantage of being very complex.
  • the Applicant has developed a modified covering blank where at least one of the segments is oversize, that is, wider than the side of the base of the covering blank it is connected to; more specifically, the oversize segment is adapted to completely cover at least two of the faces of the lateral wall of the box.
  • the modified covering blank therefore makes it possible to reduce the number of lips necessary for folding over, compared to the number of sides of the box. Indeed, if an oversize segment covers two contiguous faces of the lateral wall of the box, the edge at the intersection between these faces does not need a fold over lip since it is covered completely by the oversize segment itself.
  • the fold over lips are less in number; the fold over lips are not totally absent, however.
  • the oversize segments of the modified covering blank are provided (at least at one of their lateral edges) with additional (excess) portions constituting fold over lips.
  • This invention therefore has for an aim to provide an apparatus and a process that overcome the above mentioned disadvantages of the prior art.
  • this invention has for an aim to provide an apparatus and a process for covering a box having a bottom wall with more than four sides using a modified covering blank.
  • Another aim of this invention is to provide an apparatus and a process for covering a box having a bottom wall with more than four sides using a modified covering blank that allows rapid and effective changeover to boxes of different shapes.
  • the apparatus according to the invention is an apparatus for covering a box which has a bottom wall with a predetermined number of sides (in particular, more than four sides) and a lateral wall having as many faces, using a flat covering blank which has a base shaped like the bottom wall of the box and segments connected to the base and which can be folded to cover the lateral wall of the box, at least one of the segments being made in such a way that it completely covers at least two of the faces of the lateral wall of the box and partly covers at least another face of the lateral wall.
  • the apparatus comprises:
  • the process according to the invention is in turn a process for covering a box which has a bottom wall with a predetermined number of sides (preferably, more than four sides) and a lateral wall having as many faces, using a flat covering blank which has a base shaped like the bottom wall of the box and segments connected to the base and which can be folded to cover the lateral wall of the box, at least one of the segments being made in such a way that it completely covers at least two of the faces of the lateral wall of the box and partly covers at least another face of the lateral wall.
  • the process comprises the following steps:
  • the apparatus according to the invention is characterized in that the means for moving at least one of the brushes are adapted to move the brush along a predetermined path comprising at least one change of direction.
  • the process according to the invention is characterized in that at least one of the brushes is moved along a predetermined path comprising at least one change of direction.
  • the numeral 1 in the drawings denotes an apparatus according to this invention for covering boxes 2 of paperboard or cardboard.
  • the box 2 has a bottom wall 3 with a predetermined number of sides and a lateral wall 4 having as many faces 5.
  • the box might have any shape; in the examples illustrated, the bottom wall of the box has a polygonal shape but the box might also have curved lateral walls.
  • the apparatus 1 is designed to cover (preferably but not exclusively) boxes 2 having more than four sides.
  • the apparatus 1 is designed to cover the box 2 with a covering blank 6 having a base 7 shaped like the bottom wall 3 of the box 2 and segments 8 connected to the base 7 and designed to be folded in such a way as to cover the lateral wall 4 of the box 2.
  • At least one of the segments 8 is an oversize segment 8A, that is to say, a segment adapted to cover completely at least two of the faces 5 of the lateral wall 4 of the box and to partly cover at least one other face 5 of the lateral wall 4.
  • the covering blank 6 preferably also comprises at least one undersize segment 8B (that is to say, designed to cover only a limited portion of one of the faces 5), connected to one of the sides of the base 7 adjacent to the side of the base 7 the oversize segment 8A is connected to.
  • at least one undersize segment 8B that is to say, designed to cover only a limited portion of one of the faces 5
  • the covering blank 6 also comprises segments 8C of standard size, that is, of a size such that the segment (when folded vertically) completely covers only one face 5 of the lateral wall 4 of the box 2.
  • the standard size segments 8C might not be present. That is because the number of standard size segments is equal to the difference between the number of sides of the box 2 and the total number of oversize segments 8A and undersize segments 8B. Thus, if the sum of oversize segments 8A plus undersize segments 8B is equal to the number of sides of the box 2 (or to the number of sides of the base 7 of the covering blank 6), the number of standard size segments 8C is zero.
  • the apparatus 1 comprises a mould 9 which moves vertically and is operatively connected to an inner surface of the box to move it vertically.
  • the mould 9 also constitutes means for positioning the box 2 in a folding station of the apparatus 1.
  • the box 2 when it is in the folding station, is positioned on the pre-glued covering blank 6 and is in a horizontal plane; more specifically, the box 2 is positioned on the covering blank 6 with the bottom wall 3 in contact with (that is, glued to) the base 7 of the blank 6.
  • the mould 9 constitutes a constraining element operatively fitted to size in an internal volume of the box 2 and constitutes abutment surfaces operatively in contact with the inside surfaces of the faces 5.
  • the mould 9 is movable vertically (as one with the box 2 and with the covering blank 6 applied to it) in order to move the box from the folding station to a fold over station; the fold over station is lower than the folding station.
  • the apparatus 1 also comprises a mould (not illustrated in the drawings but well known in the trade) positioned outside the box 2, shaped like, and in contact with, the bottom wall 3 of the box 2.
  • the outside mould is movable vertically in synchrony with the mould 9 and acts in conjunction with the latter in order to move the box 2 and hold it in the required positions (for example in the fold over station).
  • the apparatus 1 comprises at least one contact element 10.
  • the contact element 10 is in the form of an elongated element associated with a frame of the apparatus 1 (illustrated only partly in the drawings but of per se known type) and located at a fixed position relative to the box 2, that is, relative to the mould 9.
  • the contact element 10 comprises a brush.
  • the contact element 10 is positioned in the folding station to interact with a segment 8 of the covering blank during its motion as one with the box 2, causing the segment to be folded from the horizontal position to a vertical position in which it is in contact with a corresponding face 5 of the lateral wall 4 of the box 2.
  • Each contact element 10 extends in a predetermined direction, according to the profile of the box 2.
  • two types of contact elements 10 are provided.
  • the contact elements 10 of the first type comprise contact elements 10A whose extension is generally larger than the width of the segments 8, that is, of the oversize segments 8A (to enable boxes 2 of different sizes to be covered without having to change the contact elements 10A).
  • the contact elements 10 of the second type comprise contact elements 10B whose extension is equal to (and in any case not greater than) the width of the undersize segments 8B; that is to say, the length of the sides of the base 7 of the blank 6 the segments 8B are connected to.
  • the number of contact elements 10 located in the folding station depends on the number of sides of the box 2 to be covered and on the shape of the covering blank 6.
  • FIG. 1-22 show by way of an example two different embodiments of the apparatus 1 (that is, two different applications of this invention): a first embodiment relating to boxes with eight sides ( Figures 1-22 ), and a second embodiment relating to boxes with six sides ( Figures 23-35 ).
  • the apparatus 1 comprises, in the folding station, six contact elements 10 (two contact elements 10A of the first type and four contact elements 10B of the second type).
  • the apparatus 1 again comprises, in the folding station, six contact elements 10 (two contact elements 10A of the first type and four contact elements 10B of the second type), but orientated differently relative to each other.
  • the covering blank 6 comprises two standard size segments 8C.
  • the covering blank 6 does not have any standard size segments 8C.
  • the number of contact elements 10A of the first type is equal to the number of oversize segments 8A
  • the number of contact elements 10B of the second type is equal to the number of undersize segments 8B.
  • the apparatus 1 comprises at least two folding elements 11, which are movable relative to the box 2 positioned in the fold over station.
  • the folding elements 11 are brushes.
  • the folding elements might comprise paddles, blades or idle rollers.
  • the apparatus 1 comprises twice as many brushes 11 as there are oversize segments 8A on the covering blank 6.
  • the oversize segment 8A (or at least one of the oversize segments 8A), that is already in the vertical position in contact with one face 5 of the lateral wall 4 of the box 2 (as a result of the vertical movement of the box 2 through the folding station) is folded laterally so as to cover at least one other face 5 (adjacent to the previous one) completely and a further face 5 partly; this partial covering constitutes folding over.
  • the oversize segment 8A has two opposite ends that must both be folded and/or folded over. It follows therefore that there are twice as many movable brushes 11 as there are oversize segments 8A.
  • the oversize segment 8A is folded laterally by the continuous movement of the brushes 11, although at least one of the brushes folds the oversize segment 8A on two different faces 5 of the lateral wall 4 of the box (together forming an edge, and hence an angle, between them).
  • the apparatus 1 comprises brush 11 movement means for laterally folding the oversize segment 8A (or other segments 8) and move it fully into contact with the lateral wall 4 of the box.
  • the movement means of at least one of the brushes 11 are adapted to move the brush 11 along a predetermined path comprising at least one change of direction.
  • the predetermined path comprises a first stretch of predetermined length and a second stretch that makes a predetermined angle with the first stretch.
  • the movement means of all the brushes 11 are of the same type (that is, adapted to move the brush 11 along a predetermined path comprising at least one change of direction and, preferably, comprising a first stretch of predetermined length and a second stretch that makes a predetermined angle with the first stretch and, more specifically, as described below).
  • the movement means comprise a head 12 and a slide 13 interconnected in such a way that the slide 13 is constrained to slide along a predetermined path relative to the head 12.
  • the slide 13 is constrained to slide relative to the head 12 by means of a system comprising a cam 14 and a roller 15.
  • the profile of the cam 14 corresponds to the predetermined path so as to constrain the slide 13 to move along said path.
  • the brush 11 is associated with the slide 13.
  • the slide 13 is movable relative to the head 12 in a horizontal plane (perpendicular to the direction of movement of the mould 9 and hence of the box 2) in a first direction and a second direction (not parallel to each other).
  • each brush 11 also comprise an actuator connected to the slide 13 and designed to move it relative to the head 12 from a process start position to a process end position and vice versa.
  • the actuator comprises a pneumatic piston associated with the slide 13.
  • the brush 11 movement means also comprise a block 16 slidably connected to a guide 17 oriented in the first direction; in the example illustrated, the guide 17 consists of a pair of rods (tubular in shape in the example illustrated) along which the block 16 is constrained to run.
  • the slide 13 is coupled to the block 16 so that it can slide relative to it in the second direction.
  • the block 16 forms a track oriented in the second direction and the slide 13 is slidably coupled to the track.
  • the first and second directions are perpendicular to each other.
  • the track formed by the block 16 (along which the slide 13 runs) is perpendicular to the guide 17 along which the block 16 runs.
  • the head 12 is movable relative to the frame of the apparatus 1, so that the relative position between the head 12 and the block 16 (that is, the slide 13) can be adjusted by operating on the head 12 while holding the block 16 in place.
  • the head 12 is slidably coupled to the guide 17.
  • the head 12 further comprises locking elements 18 (partly illustrated in the drawings) to hold the head 12 relative to the guide 17.
  • These locking elements 18 constitute locking means to fasten the head 12 to the frame in different positions relative to the fold over station.
  • the head 12 is integral with a perforated protrusion 19; the perforated protrusion 19 is inserted in a bar 20 that is integral with the frame of the apparatus 1 and perpendicular to the guide 17.
  • the perforated protrusion 19 is also provided with an adjustment screw 21 for adjusting the position of the head 12 along the direction defined by the guide 17, in order to move the brushes 11 towards and away from the wall of the box 2; the purpose of this is to compensate for mechanical tolerances, if any, (for example due to irregular thickness of the paper the covering sheet is made of) and to control the pressure of the brushes 11 on the paper (that is, on the lateral wall of the box).
  • each of the movement means in its entirety (that is, the head 12 and the related cam 14, the block 16 and the related slide 13 and roller 15, and the brush 11 connected to the slide 13) can be moved along the bar 20 (the guide 17 also moves along the bar 20 as one with the movement means).
  • the movement means comprise a limiter 22, operating on the actuator in such a way as to limit the latter's stroke; the limiter 22 thus operates on the slide 13 in order to limit the latter's stroke relative to the head 12 to a predetermined value (depending on the size of the box to be covered).
  • this adjustment possibility allows changeover from one box size to another where the length of the box sides changes but the angles made by the faces 5 of the lateral wall 4 of the box 2 with the adjacent faces 5 do not change.
  • the adjustment allows the position of the roller 15 relative to the cam 14 when the process starts to be changed.
  • the limiter 22 allows slide 13 feed to be interrupted when the roller 15 is at the end of its stroke in the cam 14.
  • the cam profile determines the path of the brush 11.
  • the apparatus 1 comprises four brushes 11 and four respective movement means.
  • the cam 14 can be replaced with a cam having a different profile.
  • the cam 14 is positioned, according to the invention, in an easy to access position and is fastened to the block 16 in such a way that it can be easily removed and fitted.
  • the cam 14 defines a first stretch and a second stretch at an angle to each other (in the horizontal plane).
  • the cam 14 defines a first and a second stretch which are straight and make a predetermined angle with one another.
  • the angle is 135 degrees (box 2 whose bottom wall 3 has the shape of a regular octagon); in the second example illustrated, the angle is 120 degrees (box 2 whose bottom wall 3 has the shape of a regular hexagon).
  • the profile of the cam 14 might be at least partly curved.
  • one or both of the stretches defined by the cam 14 might be curved.
  • the angle made by the first and second stretches defined by the cam 14 is preferably greater than 90 degrees.
  • the cam 14 might define more than two stretches not in line with each other, that is to say, making predetermined angles with each other.
  • each of the angles made by consecutive stretches of the cam 14 corresponds to a deviation in the movement of the brush 11, with the result that the brush 11 follows the profile of the lateral wall 4 of the box forming any number of angles.
  • the apparatus according to the invention is adapted to cover boxes 2 having any number of sides and of any shape with covering blanks 6 having any shape.
  • the invention makes it possible to reduce to a minimum the surface area of the lateral wall 4 of the box 2 where (for folding over requirements at the corners of the box 2) there is overlapping of two portions (that is, two layers) of the covering blank 6.
  • the apparatus 1 comprises a second folding station located under the fold over station; that way, the fold over station is vertically interposed between the (first) folding station described above and this second folding station.
  • the second folding station is necessary when covering blanks 6 having certain particular shapes are used.
  • the second folding station is necessary in the first example illustrated (eight-sided box), whereas it is not necessary in the second example illustrated (six-sided box); in effect, in the second example, the lateral wall 4 of the box 2 is already completely covered in the fold over station.
  • the apparatus 1 comprises the second folding station.
  • the mould 9 is operatively connected to an inner surface of the box 2 to move it vertically from the fold over station to a second folding station which is lower than the fold over station.
  • the apparatus 1 further comprises at least one other contact element 10C positioned in the second folding station to interact with a respective segment 8 (in particular a standard size segment 8C, where present) during its motion as one with the box 2, causing the segment to be folded from the horizontal position to a vertical position in which it is in contact with a corresponding face 5 of the lateral wall of the box.
  • a respective segment 8 in particular a standard size segment 8C, where present
  • This face 5 (onto which the segment 8C is folded in the second folding station) is partly covered because, in the folder over station above, parts of other segments 8 of the covering blank 6 (more specifically, of the oversize segments 8A) were previously applied to this face 5 during the fold over step.
  • Figures 11 and 12 illustrate the second folding station in the example relating to the eight-sided box.
  • the covering blank 6 is made in such a way that when the lateral wall 4 of the box 2 is completely covered, an upper edge 23 formed by the folded covering blank 6 extends beyond the upper edge of the box 2.
  • This upper edge formed by the covering blank 6 is folded onto the inside of the box 2 by folding means 24, illustrated in Figure 13 .
  • the apparatus 1 is adapted to cover boxes 2 having any number of sides, especially boxes with more than four sides.
  • the invention therefore can also be used to cover boxes having an odd number of sides (that is to say, having a bottom wall 3 with an odd number of sides).
  • This invention also provides a process for covering the box 2, in particular where the box 2 has more than four sides (that is, where the bottom wall 3 has more than four sides).
  • the process according to the invention uses a covering blank 6 of the type described above, that is, a covering blank 6 comprising at least one oversize segment 8A.
  • the process comprises the following steps:
  • At least one of the brushes 11 is moved along a predetermined path comprising at least one change of direction; more specifically, the predetermined path comprises a first stretch of predetermined length and a second stretch that makes a predetermined angle with the first stretch.
  • the length of the first stretch is equal to the width of the face 5 to be covered (in the fold over station) adjacent to the face 5 which the segment 8A has been applied to in the folding station.
  • the length of the first stretch is determined by the shape of the cam 14 and by the position of the roller 15 relative to the cam 14 when the process starts.
  • This position can be adjusted during setting up of the apparatus by keeping the brush 11 in a fixed position (and consequently holding the roller 15 in place as one with the slide 13 which is in turn integral with the brush 11) and moving the cam 14 (or rather, moving the block 16 as one with the cam 14).
  • the process also comprises the following steps:
  • the invention contemplates a preliminary step of moving the head 12 relative to the frame of the apparatus 1 and locking the head itself in a predetermined position (relative to the cam 14).
  • the box 2 is positioned in the folding station, with the covering blank 6 lying in a horizontal plane and the box 2 placed on top of it with the bottom wall 3 in contact with the base 7 of the blank 6 ( Figures 14 and 27 , with reference to the first and second examples, respectively).
  • the box is moved vertically from the top downwards through the folding station (in the first example illustrated, from the position of Figure 1 to the position of Figure 3 ).
  • the box is held in place in the fold over station and, at the same time, the brushes 11 are moved to apply to the lateral wall 4 of the box the parts of the oversize segments 8A that are still spaced from it.
  • a third covering step the faces 5 of the lateral wall 4 of the box 2 adjacent to the faces 5 the oversize segments 8A were applied to during the second step are covered completely.
  • the brushes 11 are moved along respective stretches whose length is equal to the width of the faces 5 to be covered (that is, equal to the length of the sides of the bottom wall 3 of the box 2 said faces 5 are connected to).
  • a fourth step the movements of the brushes 11 are diverted relative to their previous directions of movement to follow the profile of the box 2 and fold also the lips onto the lateral wall 4, thereby completing fold over of respective corners of the lateral wall 4 of the box 2 ( Figures 17 and 30 , with reference to the first and second examples, respectively).
  • a fifth covering step completes the covering of the lateral wall 4 by folding predetermined segments 8 onto the faces that are still not completely covered.
  • This step may take place in the fold over station (as in the case of example 2, Figures 30 and 31 ), where end portions of the oversize segments 8A are folded over other end portions of other oversize segments 8A folded previously.
  • this step may take place in the second folding station (as in the case of example 1, Figures 17 and 18 ); in this case, the segments 8C that have not yet been folded are folded from a horizontal position to a vertical position as the box 2 passes (moving further downwards vertically) through the second folding station causing the segments 8C to interact with the contact elements 10 of the second folding station ( Figures 11 and 12 , illustrating the first example).
  • a sixth covering step the upper edge is folded onto the inside of the box 2, into contact with an inside surface of the lateral wall 4 of the box 2, in a finishing station ( Figures 19 and 32 , with reference to the first and second examples, respectively).
  • This invention therefore offers the following advantages.
  • this invention provides an apparatus and a method for covering fully automatically boxes with any number of sides and of any shape, especially boxes with more than four sides.
  • the invention allows the use of modified covering blanks 6, that is to say, blanks with oversize segments 8A, thus minimizing the number of lateral edges of the box 2 that require folding over.
  • covering according to the invention is particularly efficient and fast because the brushes 11 move in all the different directions in a single uninterrupted motion.
  • Another advantage is the versatility of the invention which enables boxes of any shape to be covered and allows the covering apparatus and process to be easily adapted for easy changeover.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Connection Or Junction Boxes (AREA)
EP10151991.6A 2009-02-19 2010-01-28 Appareil et procédé pour la couverture d'une boîte dont la paroi inférieure comporte plus de quatre côtés Active EP2221170B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO2009A000092A IT1392865B1 (it) 2009-02-19 2009-02-19 Apparato e procedimento per rivestire una scatola avente una parete di fondo con un numero di lati maggiore di quattro.

Publications (3)

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EP2221170A1 true EP2221170A1 (fr) 2010-08-25
EP2221170B1 EP2221170B1 (fr) 2016-08-03
EP2221170B8 EP2221170B8 (fr) 2016-09-21

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EP (1) EP2221170B8 (fr)
JP (1) JP5474601B2 (fr)
CN (1) CN101811377A (fr)
IT (1) IT1392865B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106393797A (zh) * 2016-11-15 2017-02-15 广东力顺源智能自动化有限公司 一种全自动刷边分盒压盒机
CN107718702A (zh) * 2017-09-29 2018-02-23 广东力顺源智能自动化有限公司 一种能深度包盒的纸盒成型机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103507299B (zh) * 2012-06-15 2015-11-25 名硕电脑(苏州)有限公司 包装盒棱边压平装置
CN105235278B (zh) * 2015-11-01 2017-11-17 广东中科天工智能技术有限公司 一种自动制盒设备及方法
CN105269870B (zh) * 2015-11-20 2017-09-05 温州品尚礼合机械有限公司 一种天地盖纸盒成型机
CN108995294A (zh) * 2016-11-22 2018-12-14 东莞理工学院 一种方便纸板送料的折形机
CN115972675B (zh) * 2023-03-17 2023-06-16 扬州华伦印刷包装有限公司 一种用于激光防伪包装盒的生产设备

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US1829063A (en) 1929-06-29 1931-10-27 Cambridge Paper Box Co Machine for covering boxes
US2246858A (en) * 1940-01-18 1941-06-24 Parker Brothers Inc Box covering machine
US2574127A (en) 1947-12-05 1951-11-06 Martin V Silby Attachment for box-covering machines
WO2007129201A2 (fr) * 2006-05-08 2007-11-15 Emmeci S.P.A. Machine destinée à former des boîtes d'emballage, ébauches de boîtes et boîtes d'emballage

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JPS5229666B2 (fr) * 1972-07-17 1977-08-03
JPH0644720U (ja) * 1992-11-24 1994-06-14 新地 幸二 貼り箱
JP5198986B2 (ja) * 2008-09-10 2013-05-15 有限会社木村木型 貼箱製造装置

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US1829063A (en) 1929-06-29 1931-10-27 Cambridge Paper Box Co Machine for covering boxes
US2246858A (en) * 1940-01-18 1941-06-24 Parker Brothers Inc Box covering machine
US2574127A (en) 1947-12-05 1951-11-06 Martin V Silby Attachment for box-covering machines
WO2007129201A2 (fr) * 2006-05-08 2007-11-15 Emmeci S.P.A. Machine destinée à former des boîtes d'emballage, ébauches de boîtes et boîtes d'emballage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106393797A (zh) * 2016-11-15 2017-02-15 广东力顺源智能自动化有限公司 一种全自动刷边分盒压盒机
CN106393797B (zh) * 2016-11-15 2018-05-15 广东力顺源智能自动化有限公司 一种全自动刷边分盒压盒机
CN107718702A (zh) * 2017-09-29 2018-02-23 广东力顺源智能自动化有限公司 一种能深度包盒的纸盒成型机

Also Published As

Publication number Publication date
ITBO20090092A1 (it) 2010-08-20
EP2221170B1 (fr) 2016-08-03
CN101811377A (zh) 2010-08-25
IT1392865B1 (it) 2012-04-02
EP2221170B8 (fr) 2016-09-21
JP2010195043A (ja) 2010-09-09
JP5474601B2 (ja) 2014-04-16

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