EP3456668A1 - Dispositif de transport pour découpes à plat de boîtes pliantes - Google Patents

Dispositif de transport pour découpes à plat de boîtes pliantes Download PDF

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Publication number
EP3456668A1
EP3456668A1 EP18192746.8A EP18192746A EP3456668A1 EP 3456668 A1 EP3456668 A1 EP 3456668A1 EP 18192746 A EP18192746 A EP 18192746A EP 3456668 A1 EP3456668 A1 EP 3456668A1
Authority
EP
European Patent Office
Prior art keywords
transport
carriage
carton
belts
conveyor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18192746.8A
Other languages
German (de)
English (en)
Other versions
EP3456668B1 (fr
EP3456668C0 (fr
Inventor
Simon MENDE
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 EP3456668A1 publication Critical patent/EP3456668A1/fr
Application granted granted Critical
Publication of EP3456668B1 publication Critical patent/EP3456668B1/fr
Publication of EP3456668C0 publication Critical patent/EP3456668C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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
    • B65H2701/1766—Cut-out, multi-layer, e.g. folded blanks or boxes

Definitions

  • the invention relates to a transport device with the aid of a single Faltschachtelzu Songs "taken over" from an upstream device and a downstream (processing) device can be supplied.
  • upstream or downstream devices are stack feeders, devices for aligning, folding or joining.
  • Faltschachtelzuitese be referred to below as cartons.
  • transport device is always used independently whether the device according to the invention takes over a folding carton blank from an upstream device or transfers it to a downstream device.
  • the trigger is the desire to offer "customized" packaging for a variety of products.
  • the handling of these folding box blanks - starting with the removal of a folding box blank from a stack and its subsequent transport to a first processing device - is made more difficult.
  • An example of the transport of cartons to a processing station is from the EP 2 072 241 B1 known.
  • the cartons are transported at the EP 2072241 B1 via a pair of parallel arranged cam belts.
  • Cam belts are transport belts that have cams at regular intervals. These cams are belt-driven stops which transport the cartons by introducing the force required for transport into the trailing edges of the cartons. This principle has been proven in practice for many years. It is obvious that this type of transport requires a straight trailing edge of the cartons, otherwise the cartons will be conveyed "skewed" through the conveyor, causing problems in subsequent processing or even rendering them impossible.
  • the invention has for its object to provide a transport device, which allows to reliably take over even small and / or irregularly shaped boxes from an upstream device and supply them aligned as accurately as possible a downstream device.
  • the aim is also to achieve the gentlest possible treatment of the cartons.
  • the transport performance should be increased.
  • a device for transporting folding box blanks comprising two mutually parallel conveyor belts, two mutually parallel pressure belts, at least two pairs of stationary pulleys for the pressure belts and each in duplicate each first means and / or second means for adjusting the effective length of the pressure belts.
  • the transport device is relatively simple and symmetrical. It essentially comprises on both sides of an axis of symmetry two bands, namely a conveyor belt and a pressure belt, which are guided over different deflection rollers so that a conveyor belt and a pressure belt form a gap through which the cardboard to be transported is moved.
  • the pressure belt ensures a defined normal force between the carton and the conveyor belt, so that the speed of the conveyor belt is transmitted to the carton without slippage, thereby transporting it safely, quickly and without interference.
  • the length of this gap is adjustable and determines the effective working length B of the transport device according to the invention.
  • the working length of the device according to the invention can be adjusted in a simple manner by providing first means for adjusting the effective length of the pressure belts at the front end of the transport device and, in a preferred embodiment, second means for adjusting the effective length at the rear end in the direction of transport or the working length of the pressing belts are present. Because of the symmetrical construction, first means and second means are respectively provided on both sides of the symmetry axis.
  • the effective working length B of the device according to the invention corresponds to the length of the gap formed between the conveyor belt and the associated pressure belt. In other words, if the effective length of the pressure belts is varied, then the working length of the transport device according to the invention also changes.
  • first and second means for adjusting the effective length B of the conveyor belt are provided at each end of the conveyor for each pressure belt.
  • a particularly simple and effective embodiment of the first means and the second means for adjusting the effective length of the Anpressb provides that they each comprise two pulleys, which are arranged to each other at a fixed distance and that two of these pulleys are arranged on a carriage.
  • the pressure belts are guided in such a way on the stationary deflection rollers, that a voltage of the pressure belt is independent of a position of the carriage. This eliminates a retightening of the pressure belts after each adjustment, with the effective length of the Anpressbands was set.
  • At least two sensors are arranged in the transport direction before the first means for adjusting the effective length of the Anpressb selected and that the sensors transverse to the transport direction the device are spaced from each other.
  • At least two pairs of stationary deflection rollers are provided for the conveyor belts. It has proven to be a particularly reliable and production technology simple solution, when in each case a stationary deflection roller of a pressure belt and a stationary deflection roller of a conveyor belt are arranged on a common bridge.
  • the device of the invention is relatively simple, because they only transport, sensors, separately requires controllable drives of the means of transport and a control. This makes it inexpensive and robust.
  • FIG. 1a is a side view of a (process) chain of devices 60, 70 and 80 greatly simplified and shown reduced to the essential.
  • Reference numeral 60 denotes a stack feeder as known in the art.
  • the reference numeral 80 denotes a device for aligning, the subject of a patent application (official file reference: DE 10 2017 114 334.3 ) is the same applicant. The content of this application is incorporated by reference into the present application.
  • the two in the FIG. 1a illustrated transport devices 70 are constructed identically. For the sake of clarity are in the on the right side of the FIG. 1 illustrated second conveyor 70 no reference numbers entered.
  • the cartons 13 pass through the process chain shown by way of example in FIG FIG. 1 left to right.
  • a stack feed 60, a first transport device 70 according to the invention, a device 80 for aligning the cartons 13 and a second transport device 70 according to the invention are arranged one behind the other.
  • the stack feeder 60 includes a shaft 67 in which a stack of boxes 13 is located.
  • the cartons 13 have a length L.
  • the alignment device 80 comprises a drive wheel 1 and a counter-wheel 3. Between the drive wheel 1 and the counter-wheel 3, a carton 13 is transported and aligned as needed.
  • the drive 39 (see the top view in the FIG. 1 b) of the drive wheel 1 provided with a speed control, so that the peripheral speed of the drive wheel 1 and thus the transport speed of the carton 13 can be controlled.
  • the drive 39 is usually a variable speed electric motor.
  • the first and second transport means 70 are conceptually identical, however, in this embodiment, they are set mirror-inverted to the carton 13 aligning apparatus 80.
  • the transport devices 70 comprise two conveyor belts 9, which are driven parallel to one another by drive motors (not shown) (see FIG FIG. 1a ), which are guided over guide rollers 11.
  • One of the deflection rollers 11 is located in the immediate vicinity of a deflection roller 61 of the stack feed 60, so that the flat belt 63 and the conveyor belt 9 form a nearly continuous plane on which the boxes 13 are transported one after the other.
  • the other guide roller 11 is located in the immediate vicinity of the drive wheel 1, so that a cardboard 13 can be transported by means of the conveyor belt 9 in the sphere of action of the drive wheel 1.
  • the transport direction of the conveyor belts 9 is determined by an imaginary line between the pivot points of the guide rollers 11.
  • a pressure belt 15 is arranged above the conveyor belt 9.
  • the conveyor belt 9 and the pressure belt 15 form a gap (without reference numerals). This gap runs parallel to the above-mentioned direction of the conveyor belts 9.
  • the pressure belt 15 ensures a sufficient normal force between the cardboard 13 and the conveyor belt 15, so that the cardboard 13 is transported by the conveyor belt 9 without slippage.
  • a length of the gap determines the effective length B of the conveyor belt 9, because only in the region of the gap, a sufficient normal force between cardboard and conveyor belt is present.
  • the effective length B of the conveyor belts 9 is adjustable in order to prevent the stations arranged one behind the other in a process chain from undesirably influencing or disturbing each other.
  • the stack feeder 60 may be clocked while the conveyor belt 9 is continuously circulating.
  • the pressure belt 15 is in the illustrated embodiment via two fixed deflection rollers 12 and two pairs of movable Deflection rollers 19 and 21 out.
  • a deflection roller 19 and a guide roller 21 are mounted on a carriage 23.
  • the slides 23 can be moved in the transport direction or parallel to the conveyor belt 9. By moving a carriage 23 or both carriages 23, the effective length B of the conveyor belt 9 can be changed or adjusted.
  • the pulleys 19, 21 in conjunction with the carriage 23 means for adjusting the effective length B of the conveyor belt 9.
  • this embodiment has first and second means for adjusting the effective length B of the conveyor belt 9.
  • the first means are arranged at the front end of the conveyor 70.
  • the second means are arranged at the rear end. Because of the symmetrical structure, two first means and / or two second means are respectively present at a transport device 70. In a simplified embodiment, not shown, only one carriage 23 is present.
  • the pressure belt 15 is guided over the deflection rollers 12, 19 and 21 such that the tension of the pressure belt 15 is independent of the position of the carriages 23. As a result, the pressure belt 15 does not have to be tensioned when one or both carriages 23 are displaced.
  • the carriage 23 are guided on a linear guide which runs parallel to the conveyor belt 9.
  • a linear drive is provided for each carriage 23.
  • the linear guide and the linear drives have the reference numeral 25.
  • a linear drive many marketable drives, in particular rack and pinion, ball screws, electric, electro-mechanical, pneumatic or hydraulic drive are suitable. The same applies to the linear guide.
  • a distance A between the guide roller 21 and the counter-wheel 3 or the drive wheel 1 is set.
  • the distance A and the length L of the boxes 13 must also be coordinated. This tuning is done by moving the rear carriage 23 in the direction of transport 17.
  • FIG. 1b is a plan view of the process chain with the stations 60, 70, 80 and 70 also shown greatly simplified. To improve clarity, some components are not shown.
  • each transport device 70 has four slides 23 with the associated deflection rollers 19, 21 (not shown in FIG. 1b ).
  • the distance between the mutually parallel conveyor belts 9, pressing belts 15 and the carriage 23, the drive wheels 1, the counter wheels 3 of the device 80 for aligning is selected so that the carton 13 can be safely transported and aligned on them. This means that the distance is smaller than the width of the carton 13 to be transported.
  • the cardboard 13 may no longer be aligned by the conveyor belts 9 of the transport device 70, which is arranged in the transport direction in front of the device 80 during alignment, are driven.
  • the carton 13 must not be driven during alignment of the conveyor belts of the transport device 70, which is arranged in the transport direction behind the device 80. This would lead to tension of the carton 13 and complicate the alignment at least.
  • the distance C between the guide roller 61 of the stack feed 60 and the guide roller 21 of this conveyor 70 is set to be slightly smaller than a length L of cartons. For example, if the carton 13 has a length of 500 mm, the distance C is about 480 mm.
  • the function of the alignment device 80 is not the subject of the invention; It is therefore not explained in detail at this point, but on the in the DE 10 2017 114 334.3 Extensive detailed description directed. Only so much is said: The alignment of a carton 13 takes place in that the two drive wheels 1 are driven at different speeds on the right and left of the line of symmetry 41 for a short time.
  • the cardboard 13 must not be driven by the conveyor belts 9 of the transport device 70, which is arranged in the transport direction in front of the device 80 during alignment.
  • the carton 13 is allowed to align and not yet from the conveyor belts of the Transport means 70 are arranged, which is arranged in the transport direction to that of the device 80. This would lead to tension of the carton 13 and complicate the alignment at least.
  • the distance A between the rear guide roller 21 of the first conveyor 70 and the drive wheel 1 is set to be slightly smaller than a length L of the carton 13. Accordingly, the distance A between the front guide roller 21 of the second Transport device 70 and the drive wheel 1 is set so that it is slightly smaller than a length L of the carton.
  • 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 70.
  • the sum of the distances C, B and A is constant.
  • the effective length B of the conveyor belt 9 results "automatically” by setting the distances C and A.
  • the stack feeder 60, the transport means 70 and the apparatus 80 are set so that a very short carton 13 of length L can be transported and aligned.
  • the carton 13 assumes a position in which it is just behind the rear end in the stack feed 60 and the leading edge is already in the gap between the conveyor belt 9 and pressure belt 15 of the first conveyor 70.
  • FIG. 2b is one of the FIG. 2a ) comparable situation shown.
  • the box 13 is much longer.
  • the distances C and A are much larger than in FIG. 2a ,
  • the very long carton 13 is simultaneously transported by the first transporting device 70 and the driving wheel 1 of the device 80.
  • the carton 13 is simultaneously transported by the driving wheel 1 of the device 80 and the second transporting device 70 (not shown).
  • a cardboard 13 which has approximately the shape of a "T". This means that it has a length L1 on the left side as seen in the direction of transport 17 and a length L2 on its right side, where L1> L2.
  • the stack feeder 60 is slightly smaller than the length L1 of the carton 13 for the pressing belt 15l in the transport direction. Accordingly, the distance Cr between the shaft 67 of the stack feeder 60 and the pressure belt 15r is the first Transport device 70 is slightly smaller than the length L2 of the carton 13th
  • FIG. 4 For example, an L-shaped carton 13 and the corresponding settings of the pressing belts 15l and 15r of both conveyors 70 are shown.
  • the leading edge 43 of the carton 13 is straight.
  • a flap is arranged in the right-hand area in the transporting direction 17, so that the lengths L1 and L2 on the left and right sides of the box 13 are different.
  • the distances Cl and Cr between the chute 67 of the stack feeder 60 and the press belts 15 l and 1rr on both sides of the axis of symmetry 41 are equal, so that the leading edge 43 of the carton 13 at the same time into the gaps between conveyor belts 9 and pressing belts 15 is detected on the right and left of the transport device 70 according to the invention and thus transported.
  • the distance Ar at the right in the transport direction transport belt 9r is greater than the distance A1 at the left in the transport direction conveyor belt 9l. Again, A1 ⁇ L1 and A2 ⁇ L2.
  • the distances Al and Ar are also the same because the leading edge 43 of the carton 13 is straight.
  • the transport devices 70 according to the invention can be adjusted by simple changes in the position of the carriages 23 for transporting differently shaped cartons 13.
  • the method of the slide can be done automatically, so that the changeover times are minimized while optimizing the quality of the setting.
  • the invention is not limited to the process chain shown by way of example.
  • the transport devices according to the invention can rather with many others upstream and / or downstream stations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Making Paper Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP18192746.8A 2017-09-15 2018-09-05 Dispositif de transport pour découpes à plat de boîtes pliantes Active EP3456668B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017121442.9A DE102017121442A1 (de) 2017-09-15 2017-09-15 Transporteinrichtung für Faltschachtelzuschnitte

Publications (3)

Publication Number Publication Date
EP3456668A1 true EP3456668A1 (fr) 2019-03-20
EP3456668B1 EP3456668B1 (fr) 2023-08-23
EP3456668C0 EP3456668C0 (fr) 2023-08-23

Family

ID=63517775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18192746.8A Active EP3456668B1 (fr) 2017-09-15 2018-09-05 Dispositif de transport pour découpes à plat de boîtes pliantes

Country Status (5)

Country Link
EP (1) EP3456668B1 (fr)
JP (1) JP7226901B2 (fr)
DE (1) DE102017121442A1 (fr)
ES (1) ES2963815T3 (fr)
PL (1) PL3456668T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230038400A1 (en) * 2021-08-04 2023-02-09 A. G. Stacker Inc. Conveyor having adjustable nip

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10241448A1 (de) * 2002-09-06 2004-03-18 Bahmüller Maschinenbau und Präzisionswerkzeug GmbH Faltmaschine mit erhöhtem Durchsatz
EP2767494A1 (fr) * 2013-02-19 2014-08-20 Heidelberger Druckmaschinen AG Dispositif d'application de produits d'imprimerie acheminés dans un flux de produits dans deux piles séparées l'une de l'autre
US20160130107A1 (en) * 2014-11-06 2016-05-12 A. G. Stacker Inc. Layboy with adjustable lower conveyor and method for operating the layboy
WO2019002259A2 (fr) * 2017-06-28 2019-01-03 Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge Gmbh Procédé et dispositif pour orienter des découpes de boîtes pliantes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2961456B2 (ja) * 1991-08-29 1999-10-12 株式会社日立製作所 紙幣処理装置及び方法
GB9622710D0 (en) * 1996-10-31 1997-01-08 Riverwood Int Corp Carton transport apparatus
JP2004059287A (ja) * 2002-07-31 2004-02-26 Toppan Forms Co Ltd ベルト搬送装置およびベルト搬送システム
JP3878084B2 (ja) * 2002-07-31 2007-02-07 トッパン・フォームズ株式会社 ベルト搬送装置およびベルト搬送システム
JP3448585B1 (ja) * 2003-03-10 2003-09-22 株式会社石川製作所 シート状ワークの印刷部におけるフィーダコンベヤユニット
DE102007063164A1 (de) 2007-12-19 2009-08-27 Wilhelm Bahmüller, Maschinenbau Präzisionswerkzeuge GmbH Vorrichtung zur Zusammenführung mehrerer Kartons
JP5222318B2 (ja) * 2010-04-20 2013-06-26 テンチ機械株式会社 搬送装置
JP2016160058A (ja) * 2015-03-03 2016-09-05 株式会社東芝 紙葉類処理装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10241448A1 (de) * 2002-09-06 2004-03-18 Bahmüller Maschinenbau und Präzisionswerkzeug GmbH Faltmaschine mit erhöhtem Durchsatz
EP2767494A1 (fr) * 2013-02-19 2014-08-20 Heidelberger Druckmaschinen AG Dispositif d'application de produits d'imprimerie acheminés dans un flux de produits dans deux piles séparées l'une de l'autre
US20160130107A1 (en) * 2014-11-06 2016-05-12 A. G. Stacker Inc. Layboy with adjustable lower conveyor and method for operating the layboy
WO2019002259A2 (fr) * 2017-06-28 2019-01-03 Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge Gmbh Procédé et dispositif pour orienter des découpes de boîtes pliantes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230038400A1 (en) * 2021-08-04 2023-02-09 A. G. Stacker Inc. Conveyor having adjustable nip

Also Published As

Publication number Publication date
PL3456668T3 (pl) 2024-02-26
DE102017121442A1 (de) 2019-03-21
ES2963815T3 (es) 2024-04-02
JP7226901B2 (ja) 2023-02-21
EP3456668B1 (fr) 2023-08-23
JP2019052048A (ja) 2019-04-04
EP3456668C0 (fr) 2023-08-23

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