EP1398141B1 - Machine a plier - Google Patents

Machine a plier Download PDF

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Publication number
EP1398141B1
EP1398141B1 EP03019616A EP03019616A EP1398141B1 EP 1398141 B1 EP1398141 B1 EP 1398141B1 EP 03019616 A EP03019616 A EP 03019616A EP 03019616 A EP03019616 A EP 03019616A EP 1398141 B1 EP1398141 B1 EP 1398141B1
Authority
EP
European Patent Office
Prior art keywords
folding
station
machine according
speed
transport
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
EP03019616A
Other languages
German (de)
English (en)
Other versions
EP1398141A3 (fr
EP1398141A2 (fr
Inventor
Uwe Kietzmann
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.)
Bahmueller Maschinenbau und Prazisionswerkzeug GmbH
Original Assignee
Bahmueller Maschinenbau und Prazisionswerkzeug GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP1398141A2 publication Critical patent/EP1398141A2/fr
Publication of EP1398141A3 publication Critical patent/EP1398141A3/fr
Application granted granted Critical
Publication of EP1398141B1 publication Critical patent/EP1398141B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/58—Folding sheets, blanks or webs by moving endless 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
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B50/624—Applying glue on 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
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/72—Uniting opposed surfaces or edges; Taping by applying and securing strips or sheets
    • B31B50/726—Uniting opposed surfaces or edges; Taping by applying and securing strips or sheets for uniting meeting edges of collapsed boxes

Definitions

  • a folding machine which serves to transform folding carton blanks into folding carton hoses.
  • the folding carton blanks correspond to the processing of a finished folding carton to be produced.
  • the carton blank is provided with the corresponding slots separating the individual lids and bottom flaps.
  • the folding carton blanks must be folded over in a manufacturing process in two places on itself, in such a way that cover the two lateral ends of the flat folding carton blank after the folding process, to be attached to each other there.
  • the result is a closed carton tube in the circumferential direction.
  • the covering point is near the finished carton near a corner or edge.
  • the flat folded carton tube is compressed when erected to the carton at the two outer fold edges, so that a folding or bending along the other two edges of the box is established.
  • Faltschachtelschlauches results in a square cross-section piece of pipe made of cardboard or corrugated cardboard on which the flaps for the bottom and the lid protrude in the axial direction. They can now be folded in to stabilize the erected carton tube.
  • folding belts or folding tapes are used, which rest against the folded parts of the folding carton blank and force the folding along the fold line.
  • the folding belts run with their work drums along a kind of helical line, with fitting pieces sitting on the folding belt acting on the parts to be folded.
  • the folding belts run at a web speed which corresponds to the web speed of the folding carton blank.
  • the carton blank After folding the carton blank, the carton blank is stapled or glued in the folded one Fixed position.
  • so-called Gluekée stapling heads or tape heads are used.
  • the speed of the folding machine is therefore determined essentially by the speed of the closing station.
  • Relevant disclosure in this context is document EP-A-0 474 973.
  • an intermediate station is arranged between the actual folding station and the closing station, with the aid of which a speed transformation of the folding box tube to be closed can be achieved.
  • the folding station delivers the carton blanks in a solid steady grid.
  • the grid in which the folded carton blanks are delivered corresponds to the dimensions of the largest folding carton blank in the transport direction plus the required safety margin between successive folding carton blanks.
  • the transport direction of the folding box blanks in the machine corresponds to the height of the erected folding box in the position of use, or the direction of the waves in the corrugated cardboard.
  • the use of a standard machine is optimal because the delivery of the folded carton blanks takes place at the same speed with which the hose can be fixed at the closing station.
  • the gaps between successive carton tubes are marginal. If, on the other hand, folding carton hoses for low folding cartons, ie those with a small shaft dimension, are to be produced, the gaps between successive folding carton blanks in the folding station become correspondingly greater. Accordingly, the utilization of the machine decreases, since in the gaps between successive Faltschachtelschläuchen no other Faltschachtelschläuche can be closed in the closing station.
  • a particularly high throughput can be achieved if the intermediate station processes a speed profile in which, after the takeover of the folding carton blank from the folding station, the speed is increased even further before the speed is lowered to the operating speed of the closing station.
  • a particularly small gap between successive folding box blanks in the closing station is possible.
  • the advantage of the speed increase beyond the delivery speed is due to a shortening of the occupancy time of the intermediate station.
  • the shorter the occupancy time of the intermediate station the faster it is possible to deliver further folding box blanks from the folding station, since a takeover of new folding box blanks in the intermediate station becomes possible only when no folding box blank is no longer present in the intermediate station. Otherwise, the intermediate station would run at too low a speed, which would cause the folding box blank coming from the folding station to be damaged.
  • the folding box blanks never travel freely in the transport path from the folding station to the closing station, but are always conveyed forcibly. Free running could alter the orientation of the carton blanks along the transport path adversely affect, so that the subsequent attachment of the adhesive tape when taping or even the gluing of the supernatants or stapling would be done with an angle error.
  • a further improvement of the slip time of the intermediate station can be achieved if the effective length along which a folding box blank is forcibly conveyed is variable. As long as the forced delivery by the intermediate station is not yet guaranteed, the intermediate station can largely speed up the transport speed. The incoming folding carton blanks are not damaged, but on the other hand inevitably inserted through the folding station in the intermediate station.
  • the forced promotion of Faltschachtelzuitese in the intermediate station can be achieved by the Faltschachtelzulase is trapped between at least two transport. Although the transport is then not form-fitting but still so frictionally that in the acceleration forces occurring in the machine slipping of Faltschachtelzuitess can occur under any circumstances.
  • the transport is frictional.
  • FIG. 1 shows a section of an inline folding machine 1. Only those functional parts are illustrated in a side view, which are essential for the understanding of the invention.
  • To the in-line folding machine includes a folding station 2 in the coming from the right via a sheet feeder, not shown Faltschachtelzu motherboarde be entered. Downstream of the folding station 2 is an intermediate station 3, which serves to match the working speed of the folding station 3 to a downstream closing station 4.
  • the closing station 4 is for example a TapeStation. In the taping station, the joint or the overlapping point of a folding carton tube is pasted over with an adhesive tape 5 coated with a hot-melt adhesive and thus permanently fixed.
  • the folding station 2 has on an upper side of a horizontal and straight extending underframe or frame, which is not further illustrated, two mutually parallel guide rails 6, which lie at the same height tops 7 form sliding or guideways on which folding box blanks 8 based on Figure 2 coming from the right to be moved to the left by the folding station 2.
  • a transport device In order to move the folding carton blanks 8 along the guide rails 6, a transport device is provided, of which two toothed belts 9 running parallel to one another at a distance between the guide rails 6 are visible.
  • the top or back of the two toothed belt 9 lies in the plane which is defined by the guideways 6 and carries drivers 11, the distance from each other, seen in the longitudinal direction of a respective toothed belt 9, the grid spacing of the folding station 2 and thus the center distance two to each other following folding box blanks 8 corresponds.
  • the two toothed belts 9 run around at the end around deflecting pulleys 12 and 13, which are rotatably mounted on axles 14 and 15 at the beginning and at the end of the folding station 2. A set of pulleys 12, 13 is driven while the other runs loose.
  • the speed at which the respectively driven rollers, for example the rollers 13, runs corresponds to the working speed of the folding station 2.
  • the folding station 2 has two pairs of endless folding belts 16 and 17, which begin in their general extent laterally below the guideways 6 and ends above the guideways 6.
  • the two folding belts 16, like the two folding belts 17, are arranged with mirror symmetry with respect to the longitudinal axis of the folding station 2.
  • the folding belt 16 on the left side of the folding station 2, seen in the direction of movement of the folding box blanks 8, runs around two pulleys 18 and 19, which are rotatably mounted on axles 21, 22 of the base frame.
  • One of the pulleys 18 and 19 is coupled to the drive device to move the folding belt 16 in synchronism with the toothed belt 9.
  • the folding belt 17 following in the direction of transport of the folding box blanks 8 is endless as well as the folding belt 16 and extends substantially in extension of the folding belt 16.
  • the folding belt 17 revolves around two end pulleys, of which only their axes of rotation 24 and 25 are schematically illustrated.
  • the folding box blanks 8 are, when you arrive in the folding station 2, first completely flat, as shown in Figure 2 on the right side. They consist of a central piece 28 and two integral side flaps 29 and 31 integral therewith. The side flaps 29 and 31 go to optionally grooved fold lines 32 and 33 in the middle piece 28 and form in the finished erected carton two diagonally opposite corner edges, from the ground the carton to the lid.
  • the folding box blank 8 contains four slots 34, which extend a little way into the folding box blank 2 and allow subsequent folding of a bottom or top flap 35.
  • Other slots that correspond to the slots 34 are located in the center piece 28 to produce this corresponding bottom or top flaps.
  • the middle piece 28 when turning over the two side flaps 29, 31, the middle piece 28 is not lifted off the guideways 6, hold-down are provided, which are formed by a plurality of loosely rotatable discs 36. They run on axles 37, which are approximately at 45 ° and are aligned so that the outer peripheral surface of the discs 36, the of seen above are above the guideways 6, in the immediate vicinity of the fold lines 32 and 33, the carton blank 8 touch.
  • the middle piece 28 is thereby depressed directly next to the fold lines 32, 33 on the guideway 6 and can not be lifted upwards when the side flaps 29, 31 are bent from the flat position to the position as shown in Figure 2 in the Center are shown.
  • the axes 37 of the discs 36 are mounted in a frame, not shown, which is connected via a likewise not illustrated bridge frame with the base of the folding station 2, so that the folding box blanks 8 can pass freely.
  • the profile on the outside of the folding belts 16, 17 is substantially sawtooth-shaped stage, so that a line-shaped contact point with the side flap 29, 31 comes about.
  • This movement first forces a raising of the side flaps 29, 31 and finally when leaving the folding belt 16 inwardly directed position of the side flaps 29, 31.
  • the fold lines 32, 33 act as a hinge.
  • the turning 29, 31 on the middle piece 28 is finally completed by the two folding rails 17.
  • Your working strand runs completely above the sliding surface 7 of the guide rails 6 and increasingly converging toward the downstream end of the guide rails 6.
  • the side flaps 29, 31 are folded over the middle piece 28 and cover each other along a strip 39th
  • the working speed of the folding station 2 i. the speed with the folding box blanks 8 pushed through the folding station and thereby folded at the same time, is limited only by the strength of the side flaps 29, 31.
  • the folding station 2 can be operated at a higher operating speed than the subsequent closing station 4.
  • the folding box hoses 8 previously folded in the folding station 2 are permanently closed along the overlapping area 39.
  • a hot melt adhesive can be added to the overlap gap to bond the overlapping areas. Furthermore, it is possible in this area staples or beat the area is closed by applying an adhesive tape. In this case, the adhesive tape is correspondingly above the end of the overlap point.
  • FIG. 1 illustrates, as an example of the closing station 4, one which works with the adhesive tape 5.
  • the adhesive tape 5 consists of a paper backing, which is coated on one side with a hot melt adhesive.
  • the closing station 4 is shown in highly schematic form in FIG. It has a plurality of Umlenkrollenopathy 41, 42 encircling endless transport means 43 in the form of belts or belts, which form an overhead Hätrum 44 between the roller groups 41 and 42.
  • Each roller group consists of mutually coaxial rollers, which are optionally driven together.
  • a plurality of aligned transport means 45 are provided in the form of belts or belts, which also circulate around Umlenkrollengue 46 and 47.
  • Each roller group also consists of mutually coaxial rollers, which are optionally driven together.
  • the lower region extending between the groups of rollers 46 and 47 also forms a working strand 48.
  • the above-extending endless transport means 45 are shown broken to provide a view of a housing 51 in which a supply roll 52 for the adhesive tape 5 is rotatably mounted.
  • the drive means for the roller groups 46 and 47 are not shown.
  • the housing 51 On the underside of the housing 51 are a plurality of successively arranged and rotatably mounted pinch rollers 53, with which the adhesive tape 5 is pressed onto the passing Faltschachtelschlauch 8.
  • To the closing station 4 further includes means for cutting the tape 5 and a heater for heating the hot melt adhesive and driving means for the rollers 53. These parts are omitted for clarity.
  • the operating speed of the closing station 4 is limited by the speed with which the hotmelt adhesive can be melted on the paper tape 5. As a rule, the working speed of the closing station 4 is now less than the working speed of the folding station 2. The lower operating speed also applies to those closing stations 4, in which staples are taken, as well as for such stapling stations, at where the overlap region 39 is adhered directly by hot melt adhesive.
  • the cycle speed results from the speed with which the hotmelt adhesive cools sufficiently in the overlap region 39 and prevents the overlap region 39 from popping open.
  • the closing station 4 directly follows the folding station 2, an optimal operation of the entire arrangement is possible if the folding box blanks 8 have a wave measure that corresponds approximately to the grid spacing. If the wave measure is smaller, i. the carton tube seen in the transport direction has a smaller depth, occur significantly gaps. During the passage of the gaps through the closing station 4, no folding carton tubes 8 can be produced, although the folding station 2 could actually deliver them at a higher cycle rate.
  • the aforementioned intermediate station 3 is provided.
  • a plurality of lower endless transport means 55 in the form of belts or belts which circulate over upstream pulley groups 56 and downstream pulley groups 57.
  • the Pakistanstrum the endless transpirator 55 is located above as Hästrumm 56. It is supported by means of other rollers or a sliding surface. Similar supports can also be found under the means of transport 43. These support means are not shown further for reasons of clarity. They are common in such machines.
  • the distance between the pulley groups 56 and 57 is somewhat equal to the pitch, i. the distance of the pairs of dogs 11 along the timing belt.
  • the Umlenkrollengue 56 and 57 are arranged so that the Faltschachtelzu motherboarde 8 from the folding station 2 smoothly and without impact enter the intermediate station 3 and can be transferred from there without impacting in the closing station 4.
  • Opposite the working strand 56 of each endless transport means 55 is another endless transport means 59 in the form of belts or belts which circulates upstream around a pulley group 61 and downstream around a pulley group 62.
  • a working strand 63 which is held down by means of several roller groups 64.
  • Each of the roller groups 64 including the pulley group 61 sit on carriages and can be selectively raised or lowered individually by linear drives 65.
  • Subsequent to the last vertically movable Andruckrollenxx 64 follows a rigidly mounted Andruckrollenxx 66 which is mounted just upstream of the Umlenkrollenxx 62 rotatably in the machine position not shown further.
  • rollers 62 and 66 there is an upwardly spaced tensioning roller group 67, which is biased by spring means not shown further up to keep the relevant endless transport means 59 stretched.
  • Two Systemssrollenrbllen influence 68 serve to impose an omega-shaped course the Leertrum between the two groups of rollers 62 and 66.
  • All of the above-mentioned role groups of the intermediate station 3 contain a plurality of coaxial roles.
  • the effective transport length over which a folding box blank 8 is forcibly transported between the upper and lower transporting means 55 and 59 can be lengthened or shortened.
  • the longest setting results when all the drive means 65 have lowered their associated pinch roller groups 64, including the Umlenkrollenxx 61.
  • the shortest effective working length arises when all Andruckrollen phenomenon 64 including the Umlenkrollenage 61, which is arranged on the input side, are in a raised position.
  • the raised position is one such position in which the gap between the workstrings 56 and 66 is greater than the thickness of the preformed and folded carton blank 8.
  • folding carton blanks 8 are processed whose length approximately corresponds to the grid dimension minus a safety distance.
  • the gap between successive folding box blanks 8 is optimally small.
  • the locking device 4 operates virtually uninterrupted. The only interruptions are the relatively short safety distances, which essentially results from the length of the driver 11 measured in the transport direction.
  • timing belt work at the same web speed as the endless transport means 55 and 66 and the transport means 43 and 45, respectively.
  • Each carton blank 8 is transported through the machine without speed change.
  • the folding box blanks 8 are positively transported by the driver 11, while the transport in the intermediate station 3 and the closing station is done by frictional engagement in which the Faltschachtelzu Songs 8 is clamped between vertically opposed transport means.
  • the synchronization is chosen so that there is no state up to the exit side of the closing station 4, in which a respective folding box blank 8 would not necessarily be transported. Free movement is excluded.
  • a driver pair 11 just hands over a folding box blank 8a to the input side of the intermediate station 3.
  • the drivers 11 operate at the same web speed as the transport means 55 and 59 of the intermediate station 3.
  • the controller (not shown) begins Folding machine to increase the drive speed of the intermediate station 8. It is fed into the intermediate station 3 at an increased speed of the folding box blank 8a. In this case, the trailing edge of the folding carton blank 8a moves away from the driver 11 at an increased speed.
  • the acceleration of the transport speed in the intermediate station 3 begins as soon as a sufficient area of the folding box 8a between the two transport means 54 and 59 is clamped and there is no longer the risk of slipping.
  • FIG 4 shows a situation in which the folding box blank 8a is completely retracted.
  • the carton blank 8a begins gradually from the Exit side of the intermediate station 3. From a certain position of the leading edge of the folding carton blank 8a, the speed with which the two transport means 55 and 59 of the intermediate station 3 starts to slow down again begins. The extent of the delay, or the time at which this delay begins, depends essentially on the amount of energy invested in the delay. In any case, it is ensured that the running speed of the folding box blank 8a emerging from the intermediate station 3 is equal to the transport speed in the closing station, as soon as according to FIG. 6 the folding box blank 8a begins to enter the closing station 4 and is clamped between its transport means 43 and 45. The speed of the transport means 55 and 59 is maintained at the level of the transport means 43 and 45 until, according to FIG. 7, the trailing edge of the folding box blank 8a has left the clamping area of the intermediate station 3.
  • the running speed of the intermediate station 3 is increased again until it reaches the speed of the toothed belt 9.
  • the time available for this corresponds to the gap between the leading edge of the next carton blank which is still on the toothed belt 9 and the entrance area of the intermediate station 3.
  • the purpose of the excessive transport speed in the intermediate station 3 is easily apparent from a synopsis of Figures 4, 5 and 6.
  • the intermediate station 3 is occupied from the time at which the leading edge of a folding box 8 in the Clamping area of the intermediate station 3 occurs until the trailing edge has left the clamping area. During this time, the intermediate station 3 can take over no further folding box 8, since the transfer to the closing station 4 must be done with their speed.
  • the occupancy time which occurs during the transfer from the intermediate station 3 to the closing station immutable only on the length of the folding box 8, seen in the transport direction dependent.
  • the transport speed with which the intermediate station 3 operates, between the operating conditions of Figure 3 and Figure 5 can be varied within wide limits and thereby shorten the occupancy time 3.
  • the interim elevation of the transport speed in the intermediate station 3 via the delivery speed by the folding station 2 reduces the occupancy time of the intermediate station 3 and is thus a contribution to further increase the operating speed of the entire system.
  • the acceleration and deceleration of the moving parts in the intermediate station 2 requires energy.
  • the energy input is higher, the faster these changes have to be done.
  • the acceleration would have to be correspondingly fast.
  • the length of the clamping region is minimally as long as it corresponds to the distance between the Umlenkrollenenement 47 and Anyakrollenx 66.
  • the largest length of the clamping portion is achieved when all An fürrollen law 64 including the input-side Umlenkrollenenus 61 are brought into the position corresponding to the lower position.
  • the clamping area is shortened, in which first the deflecting roller group 61 is raised via the drive 65.
  • a state is reached in which the speed of the transport means 55 and 59 in the intermediate station 3 when entering a folding box blank 8 can be even smaller without danger and without problems than the web speed of the incoming folding box blank 8.
  • the synchronicity between the running speeds only has to be reached when the folding box blank 8 reaches the clamping area.
  • the intermediate station receives time, so that after leaving the trailing edge of a folding carton blank 8 with the speed of the closing station 4, the transport means 55 and 59 of the intermediate station 3 can be increased to the speed of the delivering timing belt 9.
  • a folding machine has an intermediate station between the actual folding station and the closing station.
  • the intermediate station is used to close the gap between successive Faltschachtelzu motherboarden small folding carton blanks, to this Way to achieve higher throughput.
  • the speed at which the folding station operates can be increased by the speed at which a closing station can operate at maximum speed.
  • the folding box blanks are forcibly transported in each case.

Claims (19)

  1. Plieuse pour réaliser des tubes de boîtes pliantes (8) à partir de découpes de boîtes pliantes (8) qui présentent des rabats latéraux (29, 31), comprenant
    - un poste de pliage (2) dans lequel les rabats latéraux (29, 31) sont pliés vers l'intérieur de manière telle qu'ils se rejoignent bout à bout ou se recouvrent dans une zone de fermeture (39), le poste de pliage (2) présentant des moyens de transport (9) qui permettent de transporter les découpes de boîtes pliantes (8) ou les tubes de boîtes pliantes (8) avec des intervalles non modifiables entre eux, l'espace entre des tubes (8) successifs de boîtes pliantes dépendant de la taille du tube (8), mesurée dans la direction de transport,
    - un poste de fermeture (4) dans lequel la zone de fermeture (39) est fermée de manière permanente et qui présente des moyens de transport (43, 44) permettant de transporter les tubes de boîtes pliantes (8),
    caractérisé par le fait qu'elle comporte un poste intermédiaire (3) qui est disposé entre les moyens de transport (9) du poste de pliage (2) et les moyens de transport (43, 45) du poste de fermeture (4) et qui est agencé pour adapter la vitesse de transport des tubes de boîtes pliantes (8) qui quittent le poste de pliage (2) à la vitesse des moyens de transport (43, 45) du poste de fermeture (4) et pour réduire en même temps l'espace entre des tubes de boîtes pliantes (8) qui se succèdent.
  2. Plieuse selon la revendication 1, caractérisée par le fait que la vitesse de travail du poste de pliage (2) est modifiable.
  3. Plieuse selon la revendication 1, caractérisée par le fait que la vitesse de travail du poste de fermeture (4) n'est pas modifiable en service stationnaire.
  4. Plieuse selon la revendication 1, caractérisée par le fait que la vitesse de travail du poste de fermeture (4) est inférieure à la vitesse de travail maximale du poste de pliage (2).
  5. Plieuse selon la revendication 1, caractérisée par le fait que le poste intermédiaire (3) travaille selon un profil de vitesse tel qu'après la prise en charge d'une découpe de boîte pliante (8), la vitesse de transport de celle-ci est d'abord augmentée jusqu'à une valeur supérieure à la vitesse avec laquelle le poste de pliage (2) délivre la découpe de boîte pliante (8) et qu'avant le transfert au poste de fermeture (4), la vitesse de transport est réduite pour correspondre à la vitesse du poste de fermeture (4).
  6. Plieuse selon la revendication 1, caractérisée par le fait que le poste intermédiaire (3) présente une longueur de travail effective variable, le long de laquelle une découpe de boîte pliante (8) peut être transportée de manière sensiblement exempte de glissement.
  7. Plieuse selon la revendication 1, caractérisée par le fait que le poste intermédiaire (3) présente un dispositif de transport inférieur (55) et un dispositif de transport supérieur (59) et par le fait que la découpe de boîte pliante (8) peut être serrée entre les dispositifs de transport inférieur et supérieur (55, 59)
  8. Plieuse selon la revendication 7, caractérisée par le fait que la longueur effective du dispositif de transport inférieur (55) n'est pas modifiable et correspond au moins approximativement à la dimension d'intervalle du poste de pliage (2).
  9. Plieuse selon la revendication 7, caractérisée par le fait que la longueur de travail effective du dispositif de transport supérieur (59) est modifiable de manière telle que la zone le long de laquelle une découpe de boîte pliante (8) peut être serrée puisse être réglée à une longueur plus faible.
  10. Plieuse selon la revendication 7, caractérisée par le fait que le dispositif de transport inférieur (55) présente au moins deux bandes transporteuses sans fin qui circulent sur des groupes de rouleaux de renvoi (56, 57) et dont les brins de travail (58) sont soutenus entre les groupes de rouleaux de renvoi (56, 57).
  11. Plieuse selon la revendication 7, caractérisée par le fait que le dispositif d'entraînement supérieur (59) présente au moins deux bandes transporteuses sans fin qui circulent sur des groupes de rouleaux de renvoi (61, 62) situés aux extrémités et par le fait que des moyens d'appui (64) supplémentaires pour le brin de travail (63) sont prévus entre les groupes de rouleaux de renvoi (61, 62).
  12. Plieuse selon la revendication 11, caractérisée par le fait que les moyens d'appui sont constitués de groupes de rouleaux (64) supplémentaires.
  13. Plieuse selon la revendication 11, caractérisée par le fait que le groupe de rouleaux de renvoi (61), situé en amont, du moyen de transport supérieur peut être soulevé.
  14. Plieuse selon la revendication 11, caractérisée par le fait que le moyen d'appui peut être soulevé par portions entre les groupes de rouleaux de renvoi (61, 62).
  15. Plieuse selon la revendication 11, caractérisée par le fait qu'au moins le premier des groupes de rouleaux d'appui (64), situés en amont, de chaque moyen de transport supérieur (59) peut être soulevé.
  16. Plieuse selon la revendication 1, caractérisée par le fait que les groupes de rouleaux (64) servant de moyens de support pour le moyen de transport sans fin supérieur (59) peuvent être soulevés d'une certaine distance, de manière à ce que l'action de serrage entre les brins de travail de moyens de transport sans fin (55, 59) qui coopèrent l'un avec l'autre puisse être supprimée.
  17. Plieuse selon la revendication 1, caractérisée par le fait que le poste de fermeture (4) est un poste à ruban.
  18. Plieuse selon la revendication 1, caractérisée par le fait que le poste de fermeture (4) est un poste d'agrafage.
  19. Plieuse selon la revendication 1, caractérisée par le fait que le poste de fermeture (4) est un poste travaillant avec de la colle thermofusible.
EP03019616A 2002-09-06 2003-09-04 Machine a plier Expired - Lifetime EP1398141B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10241448A DE10241448A1 (de) 2002-09-06 2002-09-06 Faltmaschine mit erhöhtem Durchsatz
DE10241448 2002-09-06

Publications (3)

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EP1398141A2 EP1398141A2 (fr) 2004-03-17
EP1398141A3 EP1398141A3 (fr) 2005-10-19
EP1398141B1 true EP1398141B1 (fr) 2007-02-28

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EP03019616A Expired - Lifetime EP1398141B1 (fr) 2002-09-06 2003-09-04 Machine a plier

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EP (1) EP1398141B1 (fr)
AT (1) ATE355165T1 (fr)
DE (2) DE10241448A1 (fr)
ES (1) ES2282555T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058115A2 (fr) 2007-11-12 2009-05-13 Heidelberger Druckmaschinen AG Dispositif de matriçage rotatif

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022342A1 (de) 2004-05-04 2005-11-24 Heidelberger Druckmaschinen Ag Faltstation mit einstellbarem Faltriemen
DE102005050032A1 (de) 2005-10-14 2007-04-26 Wilhelm Bahmüller, Maschinenbau Präzisionswerkzeuge GmbH Vorrichtung zum Falten von Faltschachtelzuschnitten
ITTO20060836A1 (it) * 2006-11-24 2008-05-25 Giorgio Petratto Macchina per la realizzazione di articoli di materiale in foglio
DE102013020912A1 (de) * 2013-09-27 2015-04-23 Herbert Kannegiesser Gmbh Verfahren zum Falten von Wäschestücken
DE102014107031A1 (de) 2014-05-19 2015-11-19 Kama Gmbh Faltstation und Faltschachtelklebemaschine
CN106276391A (zh) * 2016-08-16 2017-01-04 赵晓旭 用于集藏册卡书折页的折纸方法及折纸机
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
DE102017121442A1 (de) * 2017-09-15 2019-03-21 Wilhelm B a h m ü l l e r Maschinenbau Präzisionswerkzeuge GmbH Transporteinrichtung für Faltschachtelzuschnitte

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US3847384A (en) * 1973-01-30 1974-11-12 Smithe Machine Co Inc F L Apparatus for collating sheet like elements
DE2911969A1 (de) * 1979-03-27 1980-10-16 Bahmueller Masch W Verfahren und vorrichtung zum falten von faltschachtelzuschnitten, insbesondere aus schwerer wellpappe
DE3908981A1 (de) * 1989-03-18 1990-09-27 Bahmueller Masch W Faltmaschine
DE4028635C1 (fr) * 1990-09-08 1991-12-12 Wilhelm Bahmueller, Maschinenbau Praezisionswerkzeuge Gmbh, 7067 Pluederhausen, De
DE19828820C2 (de) * 1998-06-04 2003-04-03 Jagenberg Diana Gmbh Faltschachtelklebemaschine zur Herstellung von Faltschachteln aus Zuschnitten
DE10002545A1 (de) * 2000-01-21 2001-07-26 Winkler & Duennebier Ag Verfahren und Vorrichtung zum Herstellen von Verpackungsbeuteln, Briefumschlägen und dergleichen
DE10119925A1 (de) * 2001-04-23 2002-10-31 Alfred Klett Kg Maschine zur Herstellung von fertiggeklebten und flachgelegten Faltkartons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058115A2 (fr) 2007-11-12 2009-05-13 Heidelberger Druckmaschinen AG Dispositif de matriçage rotatif
DE102007053806A1 (de) 2007-11-12 2009-05-14 Heidelberger Druckmaschinen Ag Rotationsprägeeinrichtung

Also Published As

Publication number Publication date
ATE355165T1 (de) 2006-03-15
EP1398141A3 (fr) 2005-10-19
DE50306637D1 (de) 2007-04-12
DE10241448A1 (de) 2004-03-18
ES2282555T3 (es) 2007-10-16
EP1398141A2 (fr) 2004-03-17

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