EP0804336B1 - Vorrichtung zur bearbeitung eines entlang eines förderwegs mit vorgegebener fördergeschwindigkeit geförderten zuschnitts - Google Patents

Vorrichtung zur bearbeitung eines entlang eines förderwegs mit vorgegebener fördergeschwindigkeit geförderten zuschnitts Download PDF

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Publication number
EP0804336B1
EP0804336B1 EP95937053A EP95937053A EP0804336B1 EP 0804336 B1 EP0804336 B1 EP 0804336B1 EP 95937053 A EP95937053 A EP 95937053A EP 95937053 A EP95937053 A EP 95937053A EP 0804336 B1 EP0804336 B1 EP 0804336B1
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EP
European Patent Office
Prior art keywords
folding
blank
belt
edge
station
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.)
Expired - Lifetime
Application number
EP95937053A
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German (de)
English (en)
French (fr)
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EP0804336A1 (de
Inventor
Karl Heinz KRÜGER
Manfred Pszak
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.)
Alfred Klett KG
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Alfred Klett KG
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Filing date
Publication date
Application filed by Alfred Klett KG filed Critical Alfred Klett KG
Publication of EP0804336A1 publication Critical patent/EP0804336A1/de
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Publication of EP0804336B1 publication Critical patent/EP0804336B1/de
Anticipated expiration legal-status Critical
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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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/08—Creasing
    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
    • B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
    • B31F1/0019—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously
    • B31F1/0022—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously combined with making folding lines
    • 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
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece 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
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B31B2100/002—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed
    • B31B2100/0022—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs characterised by the shape of the blank from which they are formed made from tubular webs or blanks, including by tube or bottom forming operations
    • 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
    • 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
    • B31B50/254—Surface scoring using tools mounted on 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
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/36—Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
    • 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
    • B31B50/58—Folding sheets, blanks or webs by moving endless belts or chains

Definitions

  • the invention relates to a device for processing a along a conveyor path with a given conveyor speed subsidized cutting according to the preamble of claim 1.
  • the invention relates to a folding machine for producing a folding container from a along a Conveyed conveying paths at a given speed Blank, the middle part of which is arranged laterally like a hinge Has fold grooves on which side parts sit, the initially by means of turning devices in the course of the conveying path spread position raised, increasingly along the fold grooves pivoted inward toward the longitudinal center of the blank and finally are folded from above and connected to each other.
  • the terms "device to work with along a conveyor path predetermined conveying speed of subsidized blank” always used interchangeably, since all the invention basic features both in such a device as well as in such a folding machine.
  • the present invention is generally from a folding machine for the production of folding containers from flat material blanks proceeds, the present invention relates more preferably Folding machines for the production of folding containers made of cardboard. In particular, are intended as starting materials Corrugated cardboard blanks can be used.
  • Such folding cardboard blanks exist for. B. from corrugated cardboard.
  • a corrugated cardboard sheet is parallel to each folding box Shaft crimped where the side flaps are hinged to the Midsection should sit.
  • the present invention also not on folding machines for the production of all sides closed folding containers is limited. Rather come too Folding machines for the production of envelope-like folding containers in Consideration.
  • These are e.g. B. protective coverings without cover and / or without bottom.
  • the problem with protective coverings of this type is that that the recorded object as precisely as possible in the The inside of the protective cover must fit. By eliminating Otherwise there is a risk of accidental bottom and / or lid Slipping out.
  • a practically relevant case occurs e.g. B. in the wrapping of Motor vehicle headlight reflectors. These reflectors are usually placed in corrugated cardboard envelopes. The inside dimension of the envelope is so narrow that the reflector is held in it.
  • Another application example as I said, are folding cardboard blanks, that of a developed square box with a bottom and cover correspond.
  • Such a folding cardboard blank can also be cut to the required size Slots or recesses are provided.
  • the slot width is approximately e.g. B. 1 cm.
  • the slot depth corresponds to the folding length of Bottom or lid.
  • a fourth slot arises in the area of the two merged and together side flaps to be connected.
  • One of the two side flaps also carries a so-called binding margin or glue margin. It is a tab on which also a fold groove is provided.
  • the fold grooves form the hinges between the Side flaps and the middle part.
  • One fold groove each is provided as well as one fold groove inside the middle section and a fold groove in the area of the two folded side flaps.
  • the folding takes place in a known manner by so-called Reversible straps, which the side flaps initially from below seize.
  • the turning belts run from one level below a level above the middle section.
  • the axes of the reversing belts are intertwined in such a way that the folded cardboard blank facing belt surface along the conveyor path by a total Turns 180 degrees.
  • two such reversible belts in a row arranged, each of which reversible belt only 90 degrees is entangled.
  • the problem underlying the invention is in that the inside dimensions of all folding boxes one on one Machine-made lots in the narrowest possible tolerances hold.
  • the folding boxes are rectangular boxes acts in which slot-like at the ends of the fold grooves If there are recesses, this results in the sub-task, to further develop the known folding machine so that all Slot widths of a folding box with the same dimensions are producible.
  • the object is achieved by the device according to claim 1 and Method according to claim 25 solved.
  • the invention provides an embodiment for solving the problem and a further development of this embodiment.
  • the advantage of the invention is that regardless of the width of the fold groove for each side flap is in the millimeter range precisely positioned and at the speed of the Cut with the folding edge running along with the cut between Side flap and middle section is offered.
  • the processing is static. This allows not only the harmful dynamic and switch off influences that are difficult to predict, but additionally produce excellent qualities at high speed.
  • the distance between the two folded edges changes over the conveying path Not.
  • the folded edges offer the of the Reversible straps swung in the side flaps Area from the inside supporting guide on the millimeter the pivoting movement is forced.
  • the invention makes use of the fact that such corrugated cardboard blanks indeed, - based on the basic dimensions of the Blanks - are always folded at matching points.
  • these fold grooves have a certain width, for. B. of about 1 cm. That is under the groove width Understanding the width in the cut, which is usually known as Pre-crushing rolls is generated.
  • Pre-crushing rolls is generated.
  • the blanks led into the gap opposite rollers. This Rollers are the closest, the smaller than the cutting thickness is.
  • the blank is thus squeezed in order for the subsequent attachment of the fold groove to be prepared. This creates a certain Folding area, in which the actual hinge axis then will lie.
  • the real lies Hinge axis just somewhere within the width of the Fold groove.
  • the folding device as a separate creasing station eliminates this Disadvantage due to the precise linear clamping of the blank over the entire cut length when creasing.
  • the folding device together with a turning device eliminates this disadvantage with precise line-shaped Clamping of the blank while simultaneously swiveling inward the side flaps.
  • the linear form is inherent in all embodiments of the invention Clamping the blank using the folding device.
  • the clamping lines can also be realized by that folding edge and corresponding contact zone in the manner of a Grip the scissors or punch on the blank.
  • the invention differs from this essentially in that the linear clamping of the blank statically on the blank takes place over the entire cut length.
  • the Creasing is thus carried out by a static displacement over the total cutting length. The displacement can therefore only done laterally, and not, as in the case of counter-rotating Rolling, also in or against the conveying direction.
  • the invention completely deviates from this teaching, which is known per se from.
  • the invention has recognized that a significantly increased accuracy solely through the precise application of the fold groove or through precise initiation of the folding process with millimeter precision defined folding zone can be achieved.
  • the side flaps are initially in the front part of the conveyor path still spread out.
  • the proposed folding device already enables At the beginning of the folding process, the exact positioning of the later ones Folding zone in the fold groove, regardless of the respective one Cross-sectional structure of the cardboard blank in the area of Fold groove.
  • the folding device engages directly the crease.
  • the between the top layers of the corrugated cardboard lying wave is flattened out so that one of speak for all fold grooves uniform cross-sectional structure can.
  • the folded edges of the folding device extend also along the conveyor path at least to the extent that the folding zones no longer move on the rest of the funding route can.
  • the longitudinal area on which the side flaps are meant from a spread position to at least one right angles can be folded down.
  • the side flaps are on the front area of the Funding path still widely spread.
  • it is only in front area of the conveyor path allows the folding device also at the end, d. H. down the conveyor path, to clamp, see above that the exact position of the folded edge in the fold groove for everyone folding cartons produced on a folding machine is identical.
  • the folding device according to the invention is via a synchronous drive driven with such conveying speed that processing on the carton with the conveying speed of the Cardboard boxes are made. It is advantageous to avoid any slip to avoid, so that actually from static conditions on Cutting can be assumed.
  • the folded edges are preferred by continuous endless chains realized, the chain links with tab-like or web-like Point projections into the fold grooves.
  • Such endless chains are synchronized with the conveyor speed driven.
  • the tab-like extensions with their outer sides facing the side flaps with respect to the Plane of the middle part an angle of no more than 90 degrees, preferably form no more than 70 degrees.
  • the folded edges up to that point be guided down the conveyor path until the side parts approximate are merged. This makes the one available standing space between the side flap and the middle section, which increasingly smaller due to the inward swung side flap is used optimally and on the other hand a high proportion of applied pressure applied to the folding cardboard blank.
  • claims 6-9 provide a further improvement production accuracy and serve in particular to the side parts of the blanks only by such pivoting forces to pivot inwards, which is between the front contact point and rear contact point between the side part and the reversible belt are not only the same size and rectified, but essentially with respect to the fold grooves on the side parts attack that the side edge of the Side part is held parallel to the crease during which Side part of the swivel movement is impressed.
  • the figures show a folding machine 1 for producing a Folding container.
  • such a folding machine consists of a central one Conveyor belt 2 that is endless at conveyor speed 3 circulates.
  • the belt surface of the conveyor belt 2 pointing outwards offers a support surface for a folding cardboard blank 5.
  • This folding cardboard blank lies on the central conveyor belt 2 and is driven by drivers firmly connected to the conveyor belt 4 taken in the direction of conveyance 3.
  • Such a folding cardboard blank has a central part 6, with which it on the central conveyor belt 2 rests.
  • Are on both sides of the middle part laterally arranged fold grooves 7 are provided.
  • the fold grooves are here with longitudinal and interrupted Double dashes marked.
  • the fold grooves 7 lie parallel to the conveying direction 3 and make hinge-like connections between the middle part 6 and the one attached to it Side part 8 represents.
  • Reversing belts 9 which are essentially parallel to the central conveyor belt 2 lie. These are endless flat belts, that in the course of the entire funding path from one level below of the central conveyor belt 2 to a level above the central one Increase conveyor belt 2, slightly in the direction converge to the central conveyor belt 2 and at the same time with their upward facing belt outside at the end of the Funding path down, d. H. point to the central conveyor belt 2.
  • a side part 8 lies against each of these belt outer sides. The Side part 8 must follow the entanglement of the turning belt and is lifted from the initially spread position along the fold grooves increasingly towards the longitudinal center of the blank panned and finally from above with the opposite Side part 8 folded and connected to this.
  • This transverse extension can be in the range of 1 cm, for example lie. However, this means that the actual folding zone on any Place within the groove 7.
  • the invention provides that in the front area 11 of the entire conveyor a folding device is arranged is.
  • This folding device 12 consists of an above the Blank 5 lying folding edge 13 and from below Cutting area corresponding to the folding edge 14.
  • the folded edge 13 located above the blank lies here in the longitudinal direction of the fold groove 7 linear on the blank 6.
  • the line lies within the specified width of the fold groove 7.
  • Embodiment Fig. 1 consequently provided a boundary edge, on which the side part is swiveled inwards 8 millimeters is while it from the central conveyor belt 2 after is promoted at the front.
  • the blank 6 is of the linear shape Folding edge 7 with a given force against the corresponding one Support zone 14 pressed.
  • the blank 5 is consequently on both sides of the middle part 6 of the folding device provided there 12 at a predetermined position within the groove 7 clamped in a line.
  • the distance between the clamping zones is by the arrangement of the folding devices 12 on the machine frame unchangeable, so that for the entire lot of identical folding container produced on this folding machine Internal dimensions are to be expected.
  • each the folding device 12 synchronously with the conveying speed 3 is driven.
  • a drive 15 is used for the Folding device 12.
  • the drive 15 here consists of the central machine motor 16. This machine motor usually drives all units of one such a machine. These drive means are for the sake of Clarity not shown. However, it is important that all drive trains slip-free via mechanical connections are coupled in order to achieve a synchronous movement of all parts.
  • the motor 16 drives in addition to the other machine parts not shown via a common Chain 17, the pinion 18, 19 each of the same diameter, from which one (18) for driving the folding edge 13 and of which the other (19) for driving the corresponding contact zone 14 serves.
  • the through a continuous drive shaft 20 Rotary movement of the drive 15 on the opposite folding device 12 transferred.
  • Via an additional connection chain 17 on this page is the movement of the corresponding one Support zone 14 with the movement of the folded edge 13 also synchronously coupled.
  • the folding devices 12 immediately grasp the blank at the start of the swiveling process.
  • the folded edge should attack linearly in the groove, but that by no means limit this invention to continuous linear contact zones between the folded edge and the fold groove is meant.
  • the main thing is that the linear Course of the folded edge at least with such longitudinal dimensions is that an unintentional relocation of the intended folding zone is omitted.
  • Figure 2 shows that the folded edge of a continuously rotating chain is formed.
  • This chain pressing device 21 has along the folding edge 13 lying sliders 22, which on associated holders 23rd to sit.
  • a plurality of such holders 23 with sliders 22nd is arranged on a common carrier 24.
  • Each carrier 24 is by means of a Bracket 26 transverse to the conveying direction 3 in the sense of a change in distance adjustable to the opposite carrier 24. So that the folding device 12 is different Cut dimensions adapted, in particular to make sure that the position of the folded edges 13 parallel to each other and if possible on a common level.
  • the common plane is parallel to the plane of the blank 5.
  • the corresponding ones Support zones 14 have a certain width 27, so that an edge strip remains on both sides of the folded edges 13.
  • the Carrier 24 the position of the corresponding support zone 14, namely the support belt, to be left unchanged.
  • the entire width 27 of the flat belt comes as a corresponding one Support zone 14, the entire width 27 of the flat belt.
  • Figure 3 further shows that the fold edge of one of the belt edges a circumferential folding belt 30 can be formed. It is a flat belt.
  • the axis 44 of the belt pulley 45 is with respect to the normal plane to the plane of the Cut 5 slightly inclined. It is preferably a so-called timing belt, which is somewhat lateral Can absorb forces without shifting from its running level.
  • the belt track provided on such belts engages in a known manner in corresponding annular groove-shaped recesses the pulleys 45 a. In this way, one can certain contact pressure between the folding belt edge 30 and the fold groove 7 achieve. Due to the slight inclination of the Belt axis 44 can run against the conveying direction Belt drum with the free belt edge 31 without contact on Run past cutting. Otherwise this representation corresponds the representation according to Figures 1 and 2. Regarding the expressly mentioned features is therefore based on the previous one Description referred.
  • Figures 4 and 5 show a further development, at the between the end pulleys 46, 47 of the support zone forming belt strand on the underside 48 guide devices 32 are provided with which this belt drum is pressed against the underside of the blank 5.
  • the guide device consists of a Guide rail 33, which is supported on elastic brackets 34 is.
  • these elastic mounts consist of a stationary receptacle 35, as well as from a longitudinally displaceable in this recording movable rail counterpart 36.
  • the counterpart is elastic compared to the fixed receptacle with spring 37 stored and pushes against the Underside of the belt section forming the support zone 14, while at the same time the folded edge 13 is held in the opposite direction. In this way, a predetermined one is created along the groove 7 and along the length of the front region of the conveyor path constant pressing force.
  • FIGS. 6 and 7 show that the folded edges 13 of Cross plates of an endless chain rotating at conveyor speed 39 are formed.
  • This endless chain 39 lies in one one corresponding to the outer chain contour Chain guide rail 40.
  • This chain guide rail 40 is a commercially available component and sits on a common support 49, which in turn is attached to the machine frame.
  • a sprocket 50 arranged, one of which via the motor 16 in Revolution is offset.
  • the chain guide rail extends along the front of the conveyor path.
  • the recess the chain guide rail is closely the outer contour of the Chain links adjusted. Consequently, the cross brackets 41 follow exactly the linear course of the recesses along the front Area of the funding route. In this way, one can essentially constant contact pressure between the folded edge 13 and Achieve fold groove 7 or corresponding contact zone 14.
  • the guide device / chain guide rail be acted upon with hydraulic cylinders. This offers the advantage of a caliber strength or carton quality independent contact force between the folded edge and the corresponding one Contact zone.
  • the axes 51 of the sprockets are essentially arranged parallel to the plane 42 of the blank 5.
  • the axes 51 can avoid an early collision with the inward-pivoted side parts 8 easily Longitudinal center 10 of the blank 5 may be inclined.
  • the axes are also perpendicular to the conveying direction 3 arranged to make relative movements between the cross brackets 41 and to avoid the blank 5.
  • the cross straps 41 have such arrangement of the axis 51 radially outwards, - related on axis 51 -.
  • FIG. 7 differs from this in that that here the axes 51 of the end sprockets 50 essentially perpendicular to the plane 42 of the blank 5, the Cross brackets 41 are now angled so far that they in essentially parallel to the axes 51, ie between exact parallel and positively inclined outwards (Fig. 7), aligned are and point to the blank 5.
  • Figure 8 shows that the folding device too suitable as a separate station 55 for the production of fold grooves is.
  • a feed station 52 possibly an inking station 53, a Slot station 54 arranged one behind the other.
  • Creasing station 55 can be provided, with which the incoming Flat blanks are grooved in the conveying direction. Serve for this Bending devices as described above. It in this case, however, the inward pivoting of the Side parts, so that the pre-grooved flat blanks into one Stack 56 are promoted.
  • the support zone 14 forms a longitudinal groove 58 which of one or two raised longitudinal regions 59 is flanked.
  • the Folding edge forms the counterpart to a longitudinal web 60 Longitudinal groove, which is essentially opposite to the longitudinal groove 58 (see Fig. 9).
  • the longitudinal web 60 can fit snugly into the longitudinal groove 58 are pressed in so that the blank is linear clamped and at the same time statically grooved at least at times becomes.
  • the distance between the folded edge 13 and corresponding contact zone 14 is less than the thickness D of material cutting. In this area, the Cut flat by constricting the side areas.
  • the width B essentially includes the constricted one Area.
  • a downstream folding station 57 as above, can also be used described, be provided.
  • FIGS. 10a to c show a further development of the invention, which is suitable for the side parts 8 of the Folds 6 inwards so that practically a cuboid Cardboard is created.
  • the section of a conveyor belt 2 is shown first, the moves in the direction of travel 3. On the conveyor belt 2 the middle part 6 of the blank and is on a trailing edge carried by the driver 4 in the conveying direction.
  • the folding grooves 7 are already introduced with the folding device been. However, the folding device can also be in the fold grooves 7 are. Because of the constantly moving forward central conveyor belt 2 therefore sweep over the existing Fold grooves 7 along the conveyor path a so-called driving area, which forms a geometric driving line. Within this Driving lines, the middle part 6 is moved, the side parts 8 must now be folded. The reversing straps are used for this 9, of which that longitudinal section is shown, which is currently interacting with the side parts 8. The Turning belts 9 increase with respect to the linear driving areas the fold grooves 7 from below to above and run from outside to inside together, as is also based on Figure 1 is shown.
  • the turn belts are not exactly parallel the side parts 8.
  • the belt outer sides 62 run in in each case convergent to the front edges highlighted in the drawing of the side parts 8 and are there.
  • Depends on the The respective belt geometry therefore creates front contact points 61, which, according to FIG. 10a, faces the groove 7
  • Belt edge 64 can lie, according to Figure 10b over the entire Belt width can extend or according to 10c in the area of Belt edge 63 facing away from the groove 7 are arranged.
  • FIGS. 10 a - c therefore essentially exists in the different possible contact points 61 between the outside of the belt 62 and the - highlighted here in the drawing - To show the front area of the side parts.
  • the axes of the belt deflection rollers see Fig 1
  • One of the belt edges is closer to the outside the side flap 8 as the other of the belt edges (here 63).
  • this increase should continue on spaced belt edge 63 lie in terms of the Hinge axis forming groove 7 a favorable lever distance to swing in the side flap 8.
  • FIGS. 10 a - c each show a geometric line A, which represents the pivot axis in the groove 7, and a line C, which with the side edge to be pivoted inwards 87 coincides.
  • Lines A and C are exact here shown in parallel. Due to the height dimension of the elevation 65 So the side part 8 is supported so that the line C is exactly parallel to line A.
  • the continuously swiveling inward Reversible belt 9 ensures practically accurate compliance this parallelism as long as and while the side part 8 from spread position until completion of the cut (see Figure 1) is pivoted inwards.
  • front contact point 61 and the rear contact point 66 in principle only punctiform can rest on the side part in order to cross-migrate the point of attack between the reversible belt and the side part during the Exclude inward pivoting movement.
  • the front contact point 61 and the rear contact point 66 by means of a common envelope 68 to connect which is also linear on the side part 8 should lie. This can be achieved, for example, by that along the envelope 68 from the rear nip 66 proceeding continuously to the front contact point 61 reducing elevations 65 are arranged, the points of contact with the side parts 8 each on the envelope 68 should lie.
  • only point contact be preferred so that ideally the envelope 68 only is a line.
  • the envelope 68 should be particularly preferably diagonally from the rear contact point 66 via the turning belt 9 to the front Touch point 61 run. However, this is not a requirement. It essentially depends on the amount of increase 65 to be dimensioned such that the side edge 67 of the side part 8 is exactly parallel to the fold groove 7 when the side part 8 is on the elevation 66 is supported.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Threshing Machine Elements (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Wire Bonding (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP95937053A 1994-11-06 1995-11-06 Vorrichtung zur bearbeitung eines entlang eines förderwegs mit vorgegebener fördergeschwindigkeit geförderten zuschnitts Expired - Lifetime EP0804336B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4439198 1994-11-06
DE4439198A DE4439198A1 (de) 1994-11-06 1994-11-06 Vorrichtung zur Bearbeitung eines entlang eines Förderwegs mit vorgegebener Fördergeschwindigkeit geförderten Zuschnitts
PCT/EP1995/004368 WO1996014204A1 (de) 1994-11-06 1995-11-06 Vorrichtung zur bearbeitung eines entlang eines förderwegs mit vorgegebener fördergeschwindigkeit geförderten zuschnitts

Publications (2)

Publication Number Publication Date
EP0804336A1 EP0804336A1 (de) 1997-11-05
EP0804336B1 true EP0804336B1 (de) 1998-07-22

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EP95937053A Expired - Lifetime EP0804336B1 (de) 1994-11-06 1995-11-06 Vorrichtung zur bearbeitung eines entlang eines förderwegs mit vorgegebener fördergeschwindigkeit geförderten zuschnitts

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US (1) US5997459A (da)
EP (1) EP0804336B1 (da)
JP (1) JPH10508548A (da)
AT (1) ATE168622T1 (da)
AU (1) AU3927595A (da)
CA (1) CA2204495A1 (da)
DE (2) DE4439198A1 (da)
DK (1) DK0804336T3 (da)
ES (1) ES2121427T3 (da)
WO (1) WO1996014204A1 (da)

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US12466676B2 (en) 2020-06-09 2025-11-11 Bobst Mex Sa Sheet material processing unit and sheet material processing machine

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US6673002B2 (en) 2001-10-05 2004-01-06 Hewlett-Packard Development Company, L.P. Sheet folding apparatus with pivot arm fold rollers
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DE202004021692U1 (de) * 2004-05-04 2010-06-10 Heidelberger Druckmaschinen Ag Falt- und Einfädelstation einer Faltschachtelklebemaschine
DE102004023318B4 (de) * 2004-05-07 2008-04-17 Man Roland Druckmaschinen Ag Falzeinrichtung für Druckmaschinen oder Falzapparate
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CN1994728B (zh) * 2006-12-30 2011-04-13 杨景宽 瓦楞纸板折角定位装置
TWI350792B (en) * 2007-01-17 2011-10-21 Bobst Sa Folding device for a folding and gluing machine
WO2008142946A1 (ja) * 2007-05-24 2008-11-27 Zuiko Corporation ウェブの折り装置、ウェブの折り方法および着用物品の製造方法
EP1886765A1 (de) * 2007-08-01 2008-02-13 Kama GmbH Werkzeugträgereinrichtung und Vorrichtung zur Verarbeitung flacher Zuschnitte
IT1396784B1 (it) * 2009-11-25 2012-12-14 Gingardi Apparecchiatura per la finitura dei prodotti uscenti da una macchina per la piegatura ed incollatura di prodotti in cartone o cartoncino con dorso.
JP5697342B2 (ja) 2010-02-03 2015-04-08 ユニ・チャーム株式会社 吸収性物品の包装構造及び包装構造の製造方法
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JP5663270B2 (ja) * 2010-11-01 2015-02-04 ユニ・チャーム株式会社 吸収性物品に係る連続シートの複合体の折り畳み装置、及び折り畳み方法
WO2012088000A1 (en) * 2010-12-20 2012-06-28 The Procter & Gamble Company Method for turning a pliable member of an article moving along a machine direction
US20120157287A1 (en) * 2010-12-20 2012-06-21 Yoichiro Yamamoto Apparatus for turning a pliable member of an article moving along a machine direction
US9918881B2 (en) * 2011-11-22 2018-03-20 Kimberly-Clark Worldwide, Inc. Method of folding pant-like disposable absorbent garments in a trough
US10118754B2 (en) 2011-11-22 2018-11-06 Kimberly-Clark Worldwide, Inc. Method of folding pant-like disposable absorbent garments in a chute
US11123230B2 (en) 2011-11-22 2021-09-21 Kimberly-Clark Worldwide, Inc. Method of folding pant-like disposable absorbent garments in a chute
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CN104994971B (zh) * 2013-02-26 2018-01-19 日产自动车株式会社 薄板状基材的成形方法及成形装置
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CN103274256A (zh) * 2013-05-14 2013-09-04 浙江鸿昌机械有限公司 连续式折合装置
DE102014107031A1 (de) 2014-05-19 2015-11-19 Kama Gmbh Faltstation und Faltschachtelklebemaschine
CN104261186A (zh) * 2014-08-07 2015-01-07 东莞星晖真空镀膜塑胶制品有限公司 一种关门折折纸方法
CN104129674B (zh) * 2014-08-07 2017-03-29 东莞星晖真空镀膜塑胶制品有限公司 一种自动折纸机
US9938031B2 (en) * 2014-10-27 2018-04-10 Standard Knapp Inc. Method of processing a plurality of articles through a processing section of a packaging machine and method of reconfiguring a processing section of a packaging machine
US9957072B2 (en) * 2014-10-27 2018-05-01 Standard Knapp Inc. Process section of a packaging machine
CN104528066B (zh) * 2014-12-31 2016-08-24 云南云派包装有限公司 一种手提纸箱垫板的自动折叠装置
JP5895316B1 (ja) * 2015-02-20 2016-03-30 株式会社Ｉｓｏｗａ フォルダグルア
JP6625338B2 (ja) * 2015-03-27 2019-12-25 株式会社瑞光 物品の折り装置および方法
US10882713B2 (en) * 2015-06-24 2021-01-05 Zuiko Corporation Continuous body folding device and folding method
CN105058858A (zh) * 2015-09-09 2015-11-18 深圳市成林包装机械制造有限公司 高速全自动胶盒粘盒机
DE102015219238A1 (de) * 2015-10-06 2017-04-06 Wilhelm B a h m ü l l e r Maschinenbau Präzisionswerkzeuge GmbH Faltriemen für eine Vorrichtung zum Falten von Faltschachtelzuschnitten
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JP6832133B2 (ja) * 2016-11-08 2021-02-24 三菱重工機械システム株式会社 シート折り畳み装置及び方法並びに製函機
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Publication number Priority date Publication date Assignee Title
DE102004022342A1 (de) * 2004-05-04 2005-11-24 Heidelberger Druckmaschinen Ag Faltstation mit einstellbarem Faltriemen
US7670274B2 (en) 2004-05-04 2010-03-02 Heidelberger Druckmaschinen Aktiengesellschaft Folding station with adjustable folding strap
US12466676B2 (en) 2020-06-09 2025-11-11 Bobst Mex Sa Sheet material processing unit and sheet material processing machine

Also Published As

Publication number Publication date
ES2121427T3 (es) 1998-11-16
EP0804336A1 (de) 1997-11-05
US5997459A (en) 1999-12-07
AU3927595A (en) 1996-05-31
ATE168622T1 (de) 1998-08-15
DK0804336T3 (da) 1999-04-26
DE4439198A1 (de) 1996-05-09
DE59502935D1 (de) 1998-08-27
WO1996014204A1 (de) 1996-05-17
JPH10508548A (ja) 1998-08-25
CA2204495A1 (en) 1996-05-17

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