EP3615323B1 - Procédé et dispositif pour orienter des découpes de boîtes pliantes - Google Patents

Procédé et dispositif pour orienter des découpes de boîtes pliantes Download PDF

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Publication number
EP3615323B1
EP3615323B1 EP18734535.0A EP18734535A EP3615323B1 EP 3615323 B1 EP3615323 B1 EP 3615323B1 EP 18734535 A EP18734535 A EP 18734535A EP 3615323 B1 EP3615323 B1 EP 3615323B1
Authority
EP
European Patent Office
Prior art keywords
transport
carton
cartons
transport means
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18734535.0A
Other languages
German (de)
English (en)
Other versions
EP3615323A2 (fr
Inventor
Uwe Kietzmann
Armin Haag
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.)
Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge GmbH
Original Assignee
Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge 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
Application filed by Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge GmbH filed Critical Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge GmbH
Publication of EP3615323A2 publication Critical patent/EP3615323A2/fr
Application granted granted Critical
Publication of EP3615323B1 publication Critical patent/EP3615323B1/fr
Active 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
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/044—Feeding sheets or blanks involving aligning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B65H5/023—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts between a pair of belts forming a transport nip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/002—Registering, e.g. orientating, articles; Devices therefor changing orientation of sheet by only controlling movement of the forwarding means, i.e. without the use of stop or register wall
    • 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
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/042—Feeding sheets or blanks using rolls, belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/25—Driving or guiding arrangements
    • B65H2404/254—Arrangement for varying the guiding or transport length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B65H2404/2613—Means for changing the transport path, e.g. deforming, lengthening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1764—Cut-out, single-layer, e.g. flat blanks for boxes

Definitions

  • the invention relates to a device and a method for aligning folding box blanks, which are also referred to below as boxes.
  • An example of transporting boxes to a processing station is from EP 2 072 241 B1 known. ⁇ There several cartons are transported from a shaft module with the help of cam belts into a gluing and joining module. It is easy to imagine that only a precisely aligned and positioned carton can be precisely glued in the gluing and joining module. The exact alignment is therefore decisive for the quality of the boxes.
  • the boxes are aligned at the EP 2072241 B1 via a pair of parallel cam belts.
  • Cam belts are transport belts that have cams at regular intervals. These cams are stops running around with the belt and align the boxes exactly in the desired way. This principle has proven itself in practice for many years.
  • the conveying capacity of these transport devices is not optimal, especially in the case of small boxes, because only one box can be transported between two cams arranged one behind the other on the cam belt and the distance between which is relatively large. It is not possible to arbitrarily increase the transport performance by increasing the speed of the cam belt, because the cams of the belt would otherwise hit the rear edge of the box to be transported and aligned at too high a speed. This can damage the carton and, due to the high dynamics or the large impulse that the cam introduces into the carton, the rear edge of the carton bounces off the cam, so that the alignment is not consistently good.
  • the object of the invention is to provide a device and a method that also allows small and/or irregularly shaped boxes to be precisely aligned and closed transport.
  • the precision of the alignment should be improved and the boxes should be treated as gently as possible.
  • the transport capacity of the device should also be increased.
  • a further object of the claimed invention is that two or more cartons are not only aligned, but also positioned relative to one another, so that they can be glued or joined in a precise position, for example in a gluing and joining module.
  • this object is achieved by a device for aligning cartons according to independent claims 1 and 2 .
  • the boxes are aligned by driving the two transport means at different speeds for a specific time or a specific transport route. If, for example, the left-hand side of the box "hangs back" in the transport direction, the transport means arranged on the right-hand side are driven slightly more slowly than the transport means arranged on the left-hand side, so that the right-hand side of the box "wanders" backwards until it is level with the left side and thus the front edge or other reference edge of the box is perfectly aligned.
  • the means of transport arranged on the left-hand side can also be accelerated somewhat in order to align the carton.
  • a feed device is arranged in the transport direction before the inventive device and in the transport direction behind the inventive device for aligning a transport device is provided.
  • the feed device and the transport device are essentially identical in construction. They are constructed symmetrically with respect to the alignment device. Both the feed device and the transport device have two transport belts running parallel to one another. Pressure belts are arranged above or at a distance from the conveyor belts. The box is "clamped” in a gap formed by the conveyor belts and the pressure belts, so that it is pressed against the conveyor belts with a constant and specified normal force becomes. As a result, the speed of the conveyor belts is transferred to the carton without slippage.
  • the device according to the invention has a relatively simple structure because it only requires means of transport, sensors, separately controllable drives for the means of transport and a controller. This makes it inexpensive and robust.
  • the means of transport can have a drive wheel or a drive belt.
  • a counter wheel and/or a counter belt is provided to ensure that the box to be transported and aligned is pressed against the drive wheel or the drive belt with a sufficient normal force.
  • This counter-wheel or this counter-belt ensures that a predetermined contact pressure between box and drive wheel or drive belt is guaranteed and no slippage occurs between box and drive wheel or drive belt.
  • the counter-wheels or the counter-belts are each arranged on a rocker. It is also possible that the counter wheels and/or the counter belts also have a speed-controlled drive. Then the speeds of the drives for a drive wheel or a drive belt and the associated counter wheel or the associated counter belt are coupled to one another in such a way that they drive the carton at the same transport speed.
  • This variant is somewhat more complex in terms of equipment. However, it can also be used to transport and align very large and heavy boxes or panels.
  • At least two sensors are provided to detect the actual orientation of a carton.
  • the sensors are preferably arranged at a distance from one another transversely to a transport direction of the device, so that the inclined position of the box can be determined by the time offset with which a front edge or another easily detectable geometric feature of a box is detected by the two sensors. This inclined position is then corrected by a corresponding inventive control of the drive wheels or drive belts of the two transport means.
  • the device according to the invention can also be used not only to align but also to bring several cartons together so that they can be glued together in a gluing or joining device, for example, or connected in some other way.
  • Two devices according to the invention are used for this purpose. Each of these devices aligns one carton and positions it in the direction of transport relative to the other carton in the desired manner. If, for example, a first carton is a little too far in the transport direction in front of the second carton with which it is to be joined, the first carton is not only aligned in the first device, but also slowed down a little until the front edges of the two cartons have reached the desired distance have from each other. Then both boxes for example, fed to a joining or glue module and connected there.
  • the device according to the invention not only to align a single box perfectly and with a high output, but also by using two devices coupled to one another two or more boxes can be positioned relative to one another and brought together.
  • feed devices and transport devices can also be arranged in front of or behind the device according to the invention.
  • FIG. 1 In the upper part of the figure 1 is a side view of an inventive device for aligning 2 greatly simplified and reduced to the essentials.
  • the device according to the invention comprises a drive wheel 1 and a counter wheel 3.
  • a box 13 is transported and aligned between the drive wheel 1 and the counter wheel 3.
  • the drive 39 (see the top view in Fig figure 1 ) of the drive wheel 1 is provided with a speed control so that the peripheral speed of the drive wheel 1 and thus the transport speed of the box 13 can be controlled.
  • the drive 39 is usually a speed-controlled electric motor.
  • a feeding device 5 is arranged to the left of the actual device 2 for aligning.
  • a transport device 7 for further transport of the carton 13 is arranged to the right of the device 2 and is provided with the reference number 7 in its entirety.
  • the feeder 5 and the transporter 7 are very similar in concept to each other. To a certain extent, they are a mirror image of the device 2 for aligning the boxes.
  • the feed device 5 comprises a conveyor belt 9 which is guided over a deflection roller 11, among other things.
  • This deflection roller 11 is located in the immediate vicinity of the drive wheel 1, so that a box 13 can be transported with the aid of the conveyor belt 9 in the effective range of the drive wheel 1.
  • a pressure belt 15 is arranged above the conveyor belt 9 so that the drive power required for transporting the carton 13 is transmitted reliably and without slippage from the conveyor belt 9 to the carton 13 .
  • the conveyor belt 9 and the pressing belt 15 form a gap through which the carton 13 is transported.
  • the pressure belt 15 ensures a sufficient normal force between the carton 13 and the conveyor belt 15, so that the carton 13 is transported by the conveyor belt 9 without slipping.
  • the carton 13 is transported in the direction of an arrow 17. That is, the box 13 is in the figure 1 transported from left to right by the devices 5, 2 and 7 shown.
  • the pressure belt 15 is guided over a combination of two deflection rollers 19 and 21 . These deflection rollers 19 and 21 are in turn mounted on a carriage 23 .
  • the carriage 23 can be shifted in the transport direction.
  • a linear drive 25 for moving the carriage 23 is provided for this purpose.
  • Many commercially available drives, in particular rack and pinion drives or ball screw drives, are suitable as the linear drive 25 .
  • By moving the carriage 23, a distance A between the deflection roller 21 and the counter wheel or the drive wheel 1 is set. Due to the guidance of the pressure belt 15 shown, the tension of the pressure belt 15 is independent of the position of the carriage 23, so that no retensioning is required when the carriage 23 is moved.
  • FIG. 1 In the lower part of figure 1 a top view of the device according to the invention is also shown in a greatly simplified manner. In this top view, a distance A between the deflection roller 21 and the counter wheel 3 or the drive wheel 1 is entered.
  • the transport device 7 is constructed very similarly to the feed device 5. It also includes a deflection roller 27, a conveyor belt 29, a pressure belt 31, as well as Deflection rollers 33 and 35 which are arranged on a carriage 37. As already mentioned, the transport device 7 is constructed symmetrically to the feed device 5 . Depending on the shape of the boxes 13, the distance A between the device 2 according to the invention for aligning and the deflection roller 33 of the transport device 7 is often essentially the same size as the distance A between the deflection roller 21 of the feed device 5 and the device 2 according to the invention for aligning .
  • the transport device 7 also includes two transport belts 29, two deflection rollers 27, two carriages 37 with deflection rollers 33 and 35 and two pressure belts 31.
  • the distance between the parallel conveyor belts 9, pressure belts 15 and the carriages 23, the drive wheels 1, the counter wheels 3 of the device 2 according to the invention for alignment and the conveyor belts 29, the carriage 37 with deflection rollers 33 and 35 and the two pressure belts 31 is selected in this way that the cardboard securely on can be transported and aligned with them. This means that the distance is smaller than the width of the carton 13.
  • the device 2 but also the feed device 5 and the transport device 7, are constructed symmetrically in this exemplary embodiment with respect to an axis of symmetry indicated as a dot-dash line 41.
  • the device 2 for aligning and the transport device 7 it is possible to transport and align the carton 13 in the transport direction, ie from left to right, through the entire arrangement. If the carton 13 is ideally aligned when it enters the feed device 5 and is then transported by the feed device 5, by the device 2 according to the invention and then by the transport device 7, then the carton remains perfectly aligned and the device 2 according to the invention would not function.
  • the inclination of the front edge 43 can be calculated from this time difference and the transport speed.
  • This inclination (in millimeters) is now compensated for in the alignment device 2 according to the invention by the drives 39 of the drive wheels running at different speeds, so that the box 13 has a perfectly aligned front edge 43 when it has passed through the device 2 according to the invention. Details on this are explained in more detail below. At this point, only the structural features of the arrangement according to the invention will be explained.
  • the carton 13 is aligned with the aid of the two drive wheels 1, which are driven at different speeds, when the carton 13 is only driven by the two drive wheels 1.
  • the box 13 must no longer be of the conveyor belts 9 when aligning Feeding device 5 and not yet driven by the conveyor belts 29 of the transprotein direction. That would lead to distortion of the box 13 and at least make alignment more difficult.
  • the distance A between the deflection roller 21 of the feed device 5 and the drive wheel 1 is chosen so that it is slightly smaller than a length L of the box. For example, if the carton 13 has a length of 500 mm, the distance A is about 480 mm. The same applies to the distance A between the drive wheel 1 and the deflection roller 33 of the transport device 7.
  • the feeding device 5 and the transport device 7 are configured in such a way that a very short carton 13 with the length L can be aligned.
  • the carton 13 assumes a position in which the feed device 5 still just pinches the carton 13 between the deflection roller 21 and the conveyor belt 9, so that the carton 13 moves at the speed of the conveyor belt 9 in the figure 2 being carried from left to right.
  • the front edge 43 of the carton 13 is already clamped between the drive wheel 1 and the counter wheel 3, so that the drive wheel 1 also drives the carton 13.
  • the rotational speed of the conveyor belt 9 and the peripheral speed of the drive wheel 1 should therefore be (approximately) the same.
  • the carton 13 If the carton 13 is now transported a little further (to the right), it leaves the gap between the deflection roller 11 and the conveyor belt 9 so that it is driven exclusively by the drive wheel 1. In this state, if required, the carton 13 is then aligned.
  • the length L of the box 13 is slightly greater than the distance A between the deflection rollers 21 or 33 and the drive wheel 1.
  • the distance A is set by moving the carriages 23 or 37.
  • FIGS. 3 and 4 show in a plan view how the device according to the invention is adjusted when non-rectangular cartons 13 are to be aligned. Also not all components and reference numbers are shown here.
  • a carton 13 which is approximately in the shape of a "T". This means that it has a length L1 on the left-hand side in transport direction 17 and a length L2 on its right-hand side, where L1>L2.
  • Such cartons 13 can also be easily transported and aligned with the device according to the invention.
  • the deflection rollers 21 and 33 or the pressure belts 15 and 31 are set differently on both sides of the axis of symmetry 41 .
  • the distance A1 to the drive wheel 11 is slightly smaller than the length L1 of the box 13.
  • the distance A2 between the deflection roller 21r or the end of the pressure belt 15r and the driving wheel 1r slightly smaller than the length L2 of the box 13.
  • an L-shaped carton 13 is shown.
  • the associated settings of the deflection rollers 11l, 11r, 33l and 33r or the pressure belts 15l, 15r, 31l and 31r is in the figure 4 shown.
  • the leading edge 43 is a straight continuous line.
  • a flap is arranged on the rear edge in the area on the right in the transport direction 17, so that the lengths L1 and L2 on the left and the right side of the carton 13 are different.
  • the distance A2 on the right-hand conveyor belt 9r in the transport direction is greater than the distance A1 on the left-hand conveyor belt 9l in the transport direction.
  • A1 ⁇ L1 and A2 ⁇ L2 also apply here.
  • the pressure bands 31l and 31r on both sides of the axis of symmetry 41 are set to the distance A1, which means that the front edge 43 to the right and left of the axis of symmetry 41 is simultaneously separated from the bands 29 of the Transport device 7 is detected and transported.
  • FIG 5 is shown in various views an embodiment of an inventive device for aligning.
  • a box 13 is included.
  • this box 13 does not belong to the device according to the invention.
  • a preload can be generated. This can be done via a spring device and/or a damper. It is important that the mating wheel 3 presses the box 13 against the driving wheel 1 with a constant force and does not lose contact with the box 13 for a short time.
  • a spring and/or damping device which is indicated only schematically and is labeled 51, can therefore be advantageous.
  • the device according to the invention is constructed mirror-symmetrically to the axis of symmetry 41 and all important components (drive 39, drive wheel 1, counter-wheel 3, ...) are present once on the right and left of the axis of symmetry 41.
  • FIG. 6a shows a plan view of the arrangement according to the invention.
  • a rectangular carton 13 is shown, which is askew on the conveyor belts 9l and 9r. This means that the front edge 43 has an angle that differs from 90° to the transport direction 17 .
  • the sensors 45l and 45r are arranged, in this exemplary embodiment above the conveyor belts 9l and 9r, this results in an offset ⁇ S which is shown in FIG Figure 6a is drawn.
  • This offset ⁇ S is a measure of length and is given in millimeters.
  • the aim of the alignment device 2 according to the invention and the associated method is for the carton 13 to be aligned by the drive wheels 1l and 1r in such a way that the front edge 43, after passing through the device 2 according to the invention and entering the transport device 7, is exactly orthogonal to the transport direction 17 runs.
  • FIG 6b shows the response of the sensors 45l and 45r in diagram form.
  • the sensor 45r detects - based on the in the Figure 6a ) shown position of the Carton 13 - arrival of leading edge 43 of carton 13 earlier than sensor 45l.
  • the detection of the leading edge 43 is characterized in that the output signal of the sensors jumps from 0 to 1. Because in the area of the sensor 45.2 the leading edge 43 hangs back behind the leading edge in the area of the sensor 45.1, the arrival or the leading edge 43 is detected at the sensor 45.2 at a later point in time.
  • the time offset between the detection of the leading edge 43 by the sensor 45.1 and the sensor 45.2 is in FIG Figure 6b ) with ⁇ t [in milliseconds].
  • the transport speed of the conveyor belts 9l and 9r is the same. From the known speed of the conveyor belts 9l and 9r and the time offset ⁇ t, the offset ⁇ S of the front edge 43 can be calculated in millimeters.
  • this compensation is achieved in that, in the illustrated embodiment, the driving edge 1l is driven a little slower or faster than the driving wheel 1r for a short time, so that after the box has been conveyed by the device 2 according to the invention, the edge 43 in the area of the driving wheel 1l the offset ⁇ S was transported further than the edge 43 in the area of the driving wheel 1r.
  • the carton 13 is then exactly aligned after passing through the device 2 according to the invention.
  • the transport route is shown as a function of time t.
  • a line 53 shows the transport path that the driving wheel 1r imposes on the box 13 and a line 55 shows the transport path that the driving wheel 1l imposes on the box 13.
  • the two lines 53 and 55 are straight lines through the origin, with the line 55 having a slightly greater slope than the line 53 because the driving wheel 11 is driven slightly faster than the driving wheel 1r, so that the carton 13 is moved somewhat faster in the area of the driving wheel 1l than in the area of the driving wheel 1r.
  • This difference in the transport path is determined in such a way that it is equal to the offset ⁇ S before a distance A has been covered.
  • the front edge 43 of the carton 13 As soon as the front edge 43 of the carton 13 enters the feed area of the transport device 7, the front edge, which is perfectly aligned according to the invention, is retained by the pressure belts 31 in connection with the conveyor belts 29 of the transport device 7, and a perfectly aligned carton 13 is fed to a subsequent processing station.
  • reference numeral 10b designates a first carton and reference numeral 10a designates a second carton.
  • the transport direction of the cartons 10a and 10b is denoted by 18.
  • the second carton 10a is shown placed on the first carton 10b and glued together with this, for example, via glue points 20.
  • cartons 10a and 10b not only have to be precisely aligned prior to gluing, but also their positions relative to one another must be correct.
  • the positioning of two or more cartons 10a, 10b relative to one another can be carried out very precisely and in a very short time with the aid of a plurality of coupled devices 2 for aligning.
  • the figure 10 shows a greatly simplified embodiment of two coupled devices 2.1 and 2.2 in a side view. For reasons of space, the sensors 45 are not shown. In terms of construction and control technology, the two devices are designed like those in FIGS Figures 1 to 6 shown and described devices 2.
  • two cartons 10a, 10b can not only be aligned independently of one another, but at the same time the positions of the cartons 10a, 10b can be adjusted or corrected relative to one another by slightly slowing down the carton that is too far "in front". and/or the box which is too far "back” is accelerated somewhat until both boxes 10a, 10b have the desired distance from one another.
  • the sensors 45 of both devices which are present anyway, supply the information required for this, regarding the position of the cartons 10a, 10b. From this, the joint control of both devices can determine the suitable activation of the drives 39 of both devices 2.1 and 2.2.
  • the cartons When the cartons have been positioned and brought together in the desired manner, they can be fed to a gluing or joining device (not shown), for example, and connected to one another there in the correct position.
  • the device according to the invention not only to align a single box perfectly and with a high output, but also by using two devices coupled to one another two or more boxes can be positioned relative to one another and brought together.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (15)

  1. Dispositif pour l'orientation de cartons (13) comprenant
    des premiers moyens de transport et des deuxièmes moyens de transport,
    dans lequel les premiers moyens de transport et les deuxièmes moyens de transport sont disposés de manière distante entre eux, dans lequel un dispositif d'entraînement (39.1) des premiers moyens de transport et un dispositif d'entraînement (39.r) des deuxièmes moyens de transport comprennent chacun une régulation de vitesse de rotation, dans lequel il comprend un dispositif d'alimentation (5) branchée en amont avec deux bandes de transport (9) s'étendant parallèlement entre elles, caractérisé en ce que le dispositif d'alimentation (5) comprend des bandes de pression (15) s'étendant parallèlement entre elles et des moyens pour le réglage de la longueur efficace des bandes de pression (15).
  2. Dispositif pour l'orientation de cartons (13) comprenant
    des premiers moyens de transport et des deuxièmes moyens de transport,
    dans lequel les premiers moyens de transport et les deuxièmes moyens de transport sont disposés de manière distante entre eux, dans lequel un dispositif d'entraînement (39.1) des premiers moyens de transport et un dispositif d'entraînement (39.r) des deuxièmes moyens de transport comprennent chacun une régulation de vitesse de rotation, dans lequel il comprend un dispositif de transport (7) avec deux bandes de transport (29) s'étendant parallèlement entre elles, caractérisé en ce que le dispositif de transport (7) comprend des bandes de pression (31) s'étendant parallèlement entre elles et des moyens pour le réglage de la longueur efficace des bandes de pression (31).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les moyens de transport comprennent une roue motrice (1) et/ou une courroie de transmission.
  4. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les moyens de transport comprennent une contre-roue (3) et/ou une contre-courroie.
  5. Dispositif selon la revendication 4, caractérisé en ce que les contre-roues (3) et/ou les contre-courroies sont disposées sur un bras oscillant (47).
  6. Dispositif selon la revendication 5, caractérisé en ce que les contre-roues (3) et/ou les contre-courroies comprennent également un dispositif d'entraînement à vitesse de rotation régulée et en ce que les vitesses de rotation des dispositifs d'entraînement (39) pour une roue motrice (1) ou une courroie de transmission et la contre-roue (3) correspondante ou la contre-courroie correspondante soient couplées entre elles de façon à ce qu'elles permettent d'obtenir des vitesses de transport égales.
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comprend au moins deux capteurs (45) pour la détection de l'orientation des cartons (13).
  8. Dispositif selon l'une des revendications 1 ainsi que 3 à 7, caractérisé en ce que les moyens pour le réglage de la longueur efficace des bandes de pression (15) comprend au moins une poulie de renvoi (19, 21) dont la position peut être modifiée.
  9. Dispositif selon la revendication 8, caractérisé en ce que l'au moins une poulie de renvoi (19, 21) est disposée sur un chariot coulissant (23).
  10. Dispositif selon l'une des revendications 2 à 9, caractérisé en ce que les moyens pour le réglage de la longueur efficace des bandes de pression (31) comprennent au moins une poulie de renvoi (33, 35) dont la position peut être modifiée.
  11. Dispositif selon la revendication 10, caractérisé en ce que l'au moins une poulie de renvoi (33, 35) est disposée sur un chariot coulissant (37).
  12. Dispositif selon l'une des revendications 7 à 11, caractérisé en ce que les deux capteurs (45) sont disposés, de manière distante entre eux, transversalement par rapport à une direction de transport (17) du dispositif.
  13. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comprend, pour le positionnement d'au moins deux cartons (10a, 10b) l'un par rapport à l'autre, deux dispositifs (2.1, 2.2) pour l'orientation selon l'une des revendications précédentes, et en ce que les dispositifs d'entraînement (3) des deux dispositifs (2.1, 2.2) sont couplés entre eux de façon à ce que les au moins deux cartons (10a, 10b) présentent entre eux la distance souhaitée dans la direction de transport (17).
  14. Procédé pour l'orientation de cartons (13) avec un dispositif (2) pour l'orientation selon l'une des revendications 1 à 12, comprenant les étapes suivantes :
    détection de l'orientation réelle d'un carton (13),
    comparaison de l'orientation réelle d'un carton (13) avec une orientation de consigne ou détermination d'un écart ΔS du carton (13),
    contrôle des dispositifs d'entraînement (391, 39r) des dispositifs de transport en fonction de l'écart (ΔS).
  15. Procédé selon la revendication 14, dans lequel, pour le positionnement d'au moins deux cartons (10a, 10b) l'un par rapport à l'autre, deux dispositifs (2.1, 2.2) sont prévus pour l'orientation selon l'une des revendications 1 à 13, comprenant les étapes suivantes :
    détection des positions réelles des deux cartons (10a, 10b),
    comparaison de position relative réelle des deux cartons (10a, 10b) avec une position de consigne,
    contrôle des dispositifs d'entraînement (39) des moyens de transport des deux dispositifs (2.1, 2.2) en fonction de l'écart entre la position relative réelle des deux cartons (10a, 10b) et la position de consigne.
EP18734535.0A 2017-06-28 2018-06-26 Procédé et dispositif pour orienter des découpes de boîtes pliantes Active EP3615323B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017114334.3A DE102017114334A1 (de) 2017-06-28 2017-06-28 Vorrichtung und Verfahren zum Ausrichten von Faltschachtelzuschnitten
PCT/EP2018/067056 WO2019002259A2 (fr) 2017-06-28 2018-06-26 Procédé et dispositif pour orienter des découpes de boîtes pliantes

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EP3615323A2 EP3615323A2 (fr) 2020-03-04
EP3615323B1 true EP3615323B1 (fr) 2023-03-01

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EP (1) EP3615323B1 (fr)
DE (1) DE102017114334A1 (fr)
ES (1) ES2939963T3 (fr)
PL (1) PL3615323T3 (fr)
WO (1) WO2019002259A2 (fr)

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Publication number Priority date Publication date Assignee Title
DE102017121442A1 (de) 2017-09-15 2019-03-21 Wilhelm B a h m ü l l e r Maschinenbau Präzisionswerkzeuge GmbH Transporteinrichtung für Faltschachtelzuschnitte

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821875A1 (de) * 1998-05-15 1999-11-18 Wolfgang Heiber Verfahren und Vorrichtung zur Korrektur der Lage von Zuschnitten, insbesondere Kartonzuschnitten für Kartonagenverarbeitungsmaschinen
US20020077236A1 (en) * 1999-06-28 2002-06-20 Eric Chalendar Article aligning apparatus and method therefor
DE102007063164A1 (de) 2007-12-19 2009-08-27 Wilhelm Bahmüller, Maschinenbau Präzisionswerkzeuge GmbH Vorrichtung zur Zusammenführung mehrerer Kartons
JP2012213874A (ja) * 2011-03-31 2012-11-08 Japan Paper Converting Machinery Group Co Ltd ブランクシートの搬送装置
ITUB20152764A1 (it) * 2015-08-03 2017-02-03 Giorgio Petratto Procedimenti per la cordonatura e taglio di materiali in fogli.

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ES2939963T3 (es) 2023-04-28
PL3615323T3 (pl) 2023-07-24
WO2019002259A2 (fr) 2019-01-03
DE102017114334A1 (de) 2019-01-03
WO2019002259A3 (fr) 2019-03-21

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