EP2128032A1 - Dispositif et procédé automatique pour ouvrir en coupant et pour vider des sacs - Google Patents

Dispositif et procédé automatique pour ouvrir en coupant et pour vider des sacs Download PDF

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Publication number
EP2128032A1
EP2128032A1 EP09161535A EP09161535A EP2128032A1 EP 2128032 A1 EP2128032 A1 EP 2128032A1 EP 09161535 A EP09161535 A EP 09161535A EP 09161535 A EP09161535 A EP 09161535A EP 2128032 A1 EP2128032 A1 EP 2128032A1
Authority
EP
European Patent Office
Prior art keywords
bags
cutting
emptying
take
gripper unit
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.)
Withdrawn
Application number
EP09161535A
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German (de)
English (en)
Inventor
Filiep Dekeyser
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2128032A1 publication Critical patent/EP2128032A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0008—Opening and emptying bags

Definitions

  • the present invention relates, on the one hand, to a device for automatically cutting and emptying bags, comprising:
  • the present invention relates to a method for automatically cutting and emptying bags.
  • Bags are commonly used for packaging crushed or granular goods, such as for example corn, coal, ore, gravel, sand, raw materials for the plastics industry, etc. For transportation purposes, these bags are often stacked on pallets in layers (e.g. 5 bags per layer and 11 layers per pallet).
  • the customer very often wants to use the packaged products in bulk form (e.g. in big bags or 25 ton silo trucks).
  • the bags are cut open and emptied into a discharge hopper. The cutting of the bags may be carried out manually or automatically.
  • So-called single-track cutting machines are known for automatically opening bags. With such a machine, the bags are taken off the pallet manually and placed on a conveyor track one by one. The conveyor track then moves the bags past a fixed blade which cuts the bag open and as a result of which the contents of the cut-open bag drops into a collecting hopper. Vibrating elements or eccentric gear wheels ensure that the bag is emptied in an optimum manner. At the rear of the machine, the bag is taken off the track by means of a guide plate and discharged into a container. However, the capacity of this machine is too low. In addition, one or two operatives are required to remove the bags from a pallet and place them on the conveyor track.
  • the international patent application WO 2006/043261 discloses a device for automatically emptying bags.
  • a complete pallet (any outer packaging having previously been removed) is introduced into the device by means of, for example, a fork-lift truck.
  • the device comprises a gripper unit which is designed to grip one complete layer of bags and move them across a number of rotating blades, thus cutting the bags open, as a result of which the contents can drop into a collecting hopper.
  • the bags are subsequently laid on a vibrating frame which serves to ensure that the bags are emptied further.
  • the bags which have been laid down are pushed into a collecting container by means of a rake which is provided on the underside of the gripper unit. Depending on the position of the collecting container, this can take place when the gripper unit returns in order to pick up the next layer of bags, or during the next cycle, when the gripper unit moves across the rotating blades with the next layer of bags.
  • WO 2006/043261 has a large number of moving parts, resulting in considerable energy consumption (inertia) and wear. Therefore, it is an object of the present invention to provide a device which attempts to limit the number of movements for automatically cutting and emptying one or more bags.
  • the object of the invention is achieved by providing a device for automatically cutting and emptying bags, comprising:
  • the gripper unit comprises a fixed frame having at least two rotatable arms, with each arm being rotatable about a point of rotation.
  • said frame comprises four, in particular six, rotatable arms, with each arm being rotatable about a point of rotation.
  • the cutting and emptying device comprises a movable carriage provided with cutting means and a vibratable collecting frame for the emptied bags.
  • Said cutting means are preferably rotatable.
  • said collecting frame can be made to vibrate by means of a vibration motor or a camshaft system.
  • a collecting frame which is designed in such a manner improves the emptying of the bags which have already been cut open.
  • the device comprises a collecting unit designed to collect the emptied bags.
  • Said collecting unit is preferably a pressing container in which the emptied bags are compacted.
  • Another object of this application relates to a method for automatically cutting and emptying bags, with the method comprising the following steps:
  • the one or more moved bags are held by the gripper unit while being cut open and emptied.
  • the time period during which the bags are held can be adjusted.
  • the one or more moved bags after being cut open and emptied, are passed onto a vibratable collecting frame provided on the cutting and emptying device, with this collecting frame vibrating when the cutting and emptying device returns to its rest position.
  • the present invention describes a device (1) for automatically, preferably layer by layer, cutting and emptying bags (25 kg or different weight) which are stacked on pallets.
  • a pallet will comprise at least one or more adjacent bags per layer.
  • the device (1) for automatically cutting and emptying bags according to the invention and as illustrated in Figs. 1 to 6 to this end comprises:
  • the feed device (2) comprises a hydraulically or electrically driven lifting platform which can be moved up and down.
  • the pallet with the bags is placed on this lifting platform by means of a fork-lift truck.
  • the lifting platform is protected by railings. These railings also ensure that no bags can fall off the stack.
  • the gripper unit (3) will in each case take a layer of bags from the stack at the take-up position (a) ( Fig. 3 ).
  • the lifting platform will move upwards to take a new layer to the take-up position (a).
  • detectors are fitted at various levels in the railings to detect the height of the stack of bags and to bring the lifting platform (and consequently the pallet) to the correct height for optimum removal.
  • the gripper unit (3) Using the gripper unit (3), one or more bags are gripped layer by layer.
  • the gripper unit (3) comprises a number of telescopic, preferably pin-shaped, gripping elements. When the one or more bags are gripped and moved, the gripping elements are in their extended position.
  • the gripping elements may be driven pneumatically and/or electrically.
  • the gripper unit (3) As the gripper unit (3) can be rotated between the take-up position (a) and the delivery position (b), the gripper unit (3) will, after the bags have been lifted up at the take-up position (a), rotate (in a reciprocating way) ( Fig. 2 ) to the delivery position (b) where they will be held for a certain period by the gripping elements ( Fig. 4 ).
  • the cutting and emptying device (4) moves from its rest position (c) to the delivery position (b) in order to cut open and empty the supplied one or more bags at the delivery position (b) ( Fig. 5 ).
  • the cutting and emptying device (4) comprises a movable carnage which is provided with cutting means (11) and a vibratable collecting frame (10) for the emptied bags.
  • the cutting means (11) are preferably situated at the end of the movable carriage and are preferably rotatable.
  • the material present in the bag drops into a collecting hopper (13) situated underneath after the supplied one or more bags have been cut open. Subsequently, the latter are passed on to the vibratable collecting frame (10) by the gripping elements being retracted.
  • the collecting frame (10) In order to remove any material which has possibly remained behind, it is possible to cause the collecting frame (10) to vibrate by means of a shaft on eccentric guide wheels or a guide shaft or by means of a vibration system.
  • the collecting frame (10) is caused to vibrate when it returns to its rest position (c) ( Fig. 6 ).
  • the device In order to subsequently remove the emptied bag from the collecting frame (10), the device is provided with a rake (12) which can fold out and can be moved between a folded-in and a folded-out position.
  • the collecting frame (10) When the collecting frame (10) is in its rest position (c), the rake (12) folds out downwards, so that when the movable carriage moves towards the delivery position (b) during the next cycle, it will pass the folded-out rake (12), as a result of which the emptied bag(s) will be pushed off the collecting frame (10).
  • the removed bag is received in a collecting unit, preferably a pressing container. After the bag has been removed, the rake (12) will fold back into its folded-in position.
  • the gripped and moved one or more bags are passed onto a conveyor (5) by retracting the gripping elements.
  • the alternative device (1) comprises two or more parallel conveyors (5).
  • the conveyors comprise a number of (triangular) projections.
  • the projections have a pointed end, as a result of which they can pierce through the material of the bags.
  • the conveyor (5) will move the bags in the direction of the cutting and emptying device (4).
  • the cutting and emptying device (4) may comprise a shaft with rotating blades or one or more adjacent chains provided with blades or a set of blades which are arranged in a fixed position.
  • the material present in the bag drops into a collecting hopper situated underneath after the bags have been cut open.
  • the conveyor can be made to vibrate by means of a shaft on eccentric guide wheels or by means of a vibration system.
  • the device furthermore also comprises a collecting unit in which the emptied bags land.
  • the gripper unit (3) (in both embodiments of the device according to the invention), comprises a fixed frame (6) having at least two and preferably four or more rotatable (7,8) arms, with each arm (7,8) being rotatable about a point of rotation.
  • the rotating (reciprocating) movement may be effected by either a hydraulic drive or a motor drive. In this case, use can be made of a lever (with or without counterweight) or of another known drive mechanism.
  • the gripper unit (3) In the take-up position (a), the gripper unit (3), as illustrated for example in Fig. 7 , will press the frame (6), in which the gripping elements are situated, horizontally onto the supplied layer. Subsequently, the gripping elements are (pneumatically or electrically) actuated to grip the supplied layer. This 'gripped' layer is rotated (reciprocated) into the delivery position (b) where the layer is placed on driven conveyors (5) by retracting the gripping elements (see for example Fig. 9 ).
  • the device (1) according to the invention has the significant advantage that, due to its compact dimensions, it can be placed in a container, so that the device can readily be transported.
  • the chassis of the device is incorporated into the bottom of the container (9).
  • This container (9) is designed such that it can quickly be converted into a fully operational mobile station (see Fig. 10 ) with wheels, towing hook, access doors, covering roof, maintenance steps, control unit, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP09161535A 2008-05-30 2009-05-29 Dispositif et procédé automatique pour ouvrir en coupant et pour vider des sacs Withdrawn EP2128032A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2008/0301A BE1018167A3 (nl) 2008-05-30 2008-05-30 Inrichting voor het automatisch snijden en ledigen van zakken.

Publications (1)

Publication Number Publication Date
EP2128032A1 true EP2128032A1 (fr) 2009-12-02

Family

ID=40254565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09161535A Withdrawn EP2128032A1 (fr) 2008-05-30 2009-05-29 Dispositif et procédé automatique pour ouvrir en coupant et pour vider des sacs

Country Status (2)

Country Link
EP (1) EP2128032A1 (fr)
BE (1) BE1018167A3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107089391A (zh) * 2017-05-27 2017-08-25 孙炳连 一种承接成品饲料的装置
EP3556669A1 (fr) * 2018-04-20 2019-10-23 Tetra Laval Holdings & Finance S.A. Appareil de vidange de sacs
CN111792138A (zh) * 2020-07-09 2020-10-20 温州品力智能幕墙门窗有限公司 建筑工地用防尘式水泥拆包器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102941952B (zh) * 2012-11-30 2014-07-02 浙江鑫松树脂有限公司 一种桶装脂松香的切口、剥离、输送一体机

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1040458B (de) * 1954-06-01 1958-10-02 Pohlig Ag J Vorrichtung zum Auftrennen und Entleeren von Packgefaessen fuer feinkoerniges Material, insbesondere von Papiersaecken
FR2316159A1 (fr) * 1975-07-01 1977-01-28 Ocif Modena Beghi Graziella Et Dispositif pour vider les caisses de fruits
FR2359031A1 (fr) * 1976-07-19 1978-02-17 Gueyrard Robert Appareil automatique pour ouvrir et vider les sacs
SU1065302A1 (ru) * 1982-09-15 1984-01-07 Специальное Проектно-Конструкторское И Технологическое Бюро Устройство дл растаривани мешков с сыпучим материалом
JPS5917422A (ja) * 1982-07-21 1984-01-28 Hitachi Ltd ピツキング制御方法
US4504183A (en) * 1981-02-14 1985-03-12 Jsk Company Ltd. Bag opening machine
US4627781A (en) * 1983-11-11 1986-12-09 Luco-Technic Gmbh Verfahrenstechische Anlagen Bag cutting-and emptying-device with connected collective dust-removal filter
US5484238A (en) * 1994-10-11 1996-01-16 Beloit Technologies, Inc. Refuse bag opening device
DE10128186A1 (de) * 2001-06-11 2002-12-19 Fraunhofer Ges Forschung Vorrichtung zum Positionieren einer Objekthaltevorrichtung
WO2006043261A1 (fr) 2004-10-19 2006-04-27 Ayal Robotics And Engineering Ltd. Appareil permettant de vider automatiquement des sacs

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1040458B (de) * 1954-06-01 1958-10-02 Pohlig Ag J Vorrichtung zum Auftrennen und Entleeren von Packgefaessen fuer feinkoerniges Material, insbesondere von Papiersaecken
FR2316159A1 (fr) * 1975-07-01 1977-01-28 Ocif Modena Beghi Graziella Et Dispositif pour vider les caisses de fruits
FR2359031A1 (fr) * 1976-07-19 1978-02-17 Gueyrard Robert Appareil automatique pour ouvrir et vider les sacs
US4504183A (en) * 1981-02-14 1985-03-12 Jsk Company Ltd. Bag opening machine
JPS5917422A (ja) * 1982-07-21 1984-01-28 Hitachi Ltd ピツキング制御方法
SU1065302A1 (ru) * 1982-09-15 1984-01-07 Специальное Проектно-Конструкторское И Технологическое Бюро Устройство дл растаривани мешков с сыпучим материалом
US4627781A (en) * 1983-11-11 1986-12-09 Luco-Technic Gmbh Verfahrenstechische Anlagen Bag cutting-and emptying-device with connected collective dust-removal filter
US5484238A (en) * 1994-10-11 1996-01-16 Beloit Technologies, Inc. Refuse bag opening device
DE10128186A1 (de) * 2001-06-11 2002-12-19 Fraunhofer Ges Forschung Vorrichtung zum Positionieren einer Objekthaltevorrichtung
WO2006043261A1 (fr) 2004-10-19 2006-04-27 Ayal Robotics And Engineering Ltd. Appareil permettant de vider automatiquement des sacs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 198436, Derwent World Patents Index; Class Q31, AN 1984-224114, XP002511661 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107089391A (zh) * 2017-05-27 2017-08-25 孙炳连 一种承接成品饲料的装置
EP3556669A1 (fr) * 2018-04-20 2019-10-23 Tetra Laval Holdings & Finance S.A. Appareil de vidange de sacs
WO2019201946A1 (fr) * 2018-04-20 2019-10-24 Tetra Laval Holdings & Finance S.A. Appareil de vidage de sacs
US11352160B2 (en) 2018-04-20 2022-06-07 Tetra Laval Holdings & Finance S.A. Apparatus for emptying bags
CN111792138A (zh) * 2020-07-09 2020-10-20 温州品力智能幕墙门窗有限公司 建筑工地用防尘式水泥拆包器
CN111792138B (zh) * 2020-07-09 2022-01-11 温州品力智能幕墙门窗有限公司 建筑工地用防尘式水泥拆包器

Also Published As

Publication number Publication date
BE1018167A3 (nl) 2010-06-01

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