EP3181468A1 - Maschine zur entleerung von säcken mit pulver oder granulatmaterial - Google Patents

Maschine zur entleerung von säcken mit pulver oder granulatmaterial Download PDF

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Publication number
EP3181468A1
EP3181468A1 EP16020488.9A EP16020488A EP3181468A1 EP 3181468 A1 EP3181468 A1 EP 3181468A1 EP 16020488 A EP16020488 A EP 16020488A EP 3181468 A1 EP3181468 A1 EP 3181468A1
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EP
European Patent Office
Prior art keywords
sack
carriage
sacks
station
emptying
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
EP16020488.9A
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English (en)
French (fr)
Other versions
EP3181468B1 (de
Inventor
Antonio Pirani
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COMAV Srl
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COMAV Srl
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Publication of EP3181468A1 publication Critical patent/EP3181468A1/de
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B26D1/153—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with inclined cutting member
    • B26D1/1535—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with inclined cutting member for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/10—Making cuts of other than simple rectilinear form
    • 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
    • B65B69/0033—Unpacking of articles or materials, not otherwise provided for by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0033—Cutting members therefor assembled from multiple blades

Definitions

  • the invention falls within the technical sector of automatic machines for emptying sacks.
  • the sacks in question can be made of paper, polythene paper, polythene, polypropylene raffia or the like, but in any case of flexible, thin materials that can be cut with relative ease.
  • the sacks preferably have a flattened rectangular shape, which is optimal for stacking them on pallets.
  • Such sacks often contain materials that must be continuously fed into production machines, for the most disparate purposes. This makes it necessary to install, upstream of those machines, automated equipment for opening the sacks and conveying the contents into a feed line to the production machine.
  • the palletized sacks are retrieved singly by an operator or by an anthropomorphic robot. In the former case, they are cut or broken open manually by the operator. In the latter case they are sliced by fixed blades mounted on the emptying hopper.
  • An alternative solution is for the sacks to be taken from the stack one layer at a time, using a system of multiple hooks that are mechanically or pneumatically actuated.
  • the hooked sacks are then conveyed through sets of circular blades arranged vertically along planes parallel to the transit direction of the sacks.
  • the blades rotate continuously, in such a way as to slice the lower portion of the sacks.
  • the partially emptied sacks are then deposited on a beater table to ensure they are fully emptied.
  • hooking systems can be particularly costly and complex to maintain.
  • a further drawback is that the conventional solutions for automated cutting of the sacks do not always guarantee complete emptying of the sacks, owing to the straight shape of the cuts. As a result, especially when the material to unload is tightly packed, for example owing to residual moisture, part of the material may fail to drop out of the sacks and into the collection hopper.
  • the principal purpose of this invention is to construct a machine for emptying sacks containing powder or granular material that, starting from conventionally stacked and palletized sacks, which are therefore easily handled with fork lifts, in a quick and simple automated fashion picks up one layer at a time, then slices it and empties it completely, before going on to process another layer.
  • Another purpose of the invention is to provide a sack-emptying machine of innovative design that provides superior functionality compared to the known solutions described previously.
  • a further purpose of the invention is to provide a highly effective sack cutter design that guarantees fast and complete emptying of materials in powder or granule form.
  • a further purpose of the invention is to provide a sack-emptying machine that is more reliable less costly than the known solutions described previously.
  • a further purpose of the invention is to provide a machine that is compact and relatively lightweight, in accordance with the preferred technical solution of handling and processing an entire sack layer at a time, rather than individual sacks, thereby notably increasing the throughput capacity of the system, and leaving less product residues inside the cut sacks.
  • a machine for emptying sacks containing powder or granular material of a type that comprises: one picker and handling unit, able to take at least one sack from a feed station of full sacks; one cutter unit, operating in a sack-emptying station situated downstream of the feed station, for slitting the sack carried by the picker and handling unit; means for collecting the product, situated in the sack-emptying station underneath the cutter unit, that receive the powder or granular material falling by gravity out of the previously-cut sack, to convey the material towards a transfer line; means for receiving and removing the empty sacks, situated in a sack-ejection station, where the machine is equipped with a picker and handling unit that comprises:
  • the label 1 indicates the sack-emptying machine in its entirety.
  • the sacks S contain powder or granular material and have a flattened rectangular shape, optimal for stacking them on pallets P of standard type ( Figs. 1, 2, 3 ), suitable for handling by means of lift trucks.
  • each layer of the stack is composed of five sacks S (see in particular Fig. 2 ).
  • the number of sacks S in a layer can range from a minimum of one to a certain number, depending on their size.
  • the sacks S are made of materials such as paper, polythene paper, polythene, polypropylene raffia or the like, but in any case of flexible, thin materials that can be sliced with relative ease.
  • the machine 1 comprises: one picker and handling unit 10, able to take at least one sack S from a feed station 2 of full sacks S; one cutter unit 30, operating in a sack-emptying station 3 situated downstream of the feed station 2, for slitting the sack S carried by the picker and handling unit 10; means for collecting the product 31, situated in the sack-emptying station 3, underneath the cutter unit 30, that receive the powder or granular material falling by gravity from the previously-cut sack S, to convey the material towards a transfer line (not illustrated); means 40 for receiving and removing the empty sacks S, situated in a sack-ejection station 4, installed downstream of the sack-emptying station 3.
  • the full-sack feed station 2 of the machine 1 is provided with elevator means 20 ( Figs. 2, 3 ) able to support and vertically transport a pallet P of stacked sacks S, in such a way that the topmost layer of sacks S is positioned at a pre-established height.
  • the elevator means 20 are essentially of known type, and are not illustrated or described in detail.
  • the picker and handling unit 10 of the machine there is a carriage 11 that travels horizontally along a guideway 12 running above the emptying 3 and ejection 4 stations, actuated by powered means (not illustrated).
  • the carriage 11 comprises two roller sliders 13, placed parallel to each other at a pre-established distance, advantageously greater than the corresponding dimension of a layer of sacks S on the pallet P, and attached to each other by a frame 14 ( Figs 4 to 7 ).
  • roller sliders 13 move along corresponding linear rails 15 that make up the guideway 12, fixed to the frame of the machine 1, and whose length enables the carriage 11 to complete forward F and return R travel between the sack-ejection station 4 and the sack-feed station 2, passing through the sack-emptying station 3 ( Figs 12 to 19 ).
  • prongs 16 extending outward in a near-horizontal direction ( Figs. 4 to 7 ) from the front of the carriage 11, able to pierce at least one filled sack S at the top of the stack in the sack-feed station 2, when the carriage 11 completes its forward travel F ( Figs. 12 to 15 ).
  • the cutter unit 30 situated in the sack-emptying station 3 comprises at least one first shaft 32, rotated by a first actuator 33, arranged so that the horizontal axis of the shaft is perpendicular to and underneath the direction of movement of carriage 11, and a number of circular blades 34, keyed at preset distances along the first shaft 31 and set at an angle relative to the axis of this shaft ( Figs. 8, 9 ).
  • each of the circular blades 34 follows a trajectory such that the point of contact between its circumference and a tangential plane oscillates on a line parallel to the axis of the first shaft 32, with amplitude proportional to the aforesaid angle.
  • the first shaft 32 with the circular blades 34 is supported by the walls 35 of the machine 1 ( Figs. 1, 2 ) which also contain and direct the material coming out of the sacks S toward a hopper 31 below it, of conventional type, which constitutes the product collection means.
  • the hopper 31 is intended for unloading the product onto a conveyor underneath, which is not shown.
  • a beater unit 36 comprising at least one second shaft 37, rotated by a second actuator 38, arranged with its horizontal axis perpendicular to the direction of movement of the carriage 11 and underneath it, and a number of beater elements 39 keyed at preset distances along the second shaft 37 and projecting radially from it.
  • the second shaft 37 is, for example, arranged parallel to the first shaft 32 and supported by the same walls 35 (see Fig. 2 again).
  • each of the beaters 39 is in the shape of a circular ring and set at an angle relative to the axis of the second shaft 37 ( Figs. 10, 11 ).
  • the sack-ejection station 4 has an extractor rake 44 that intersects the prongs 16 at the end of the return travel R of the carriage 11, so as to pull the empty sack S away from the prongs and allow it to drop down into the means 40 for receiving and removing the empty sacks S.
  • the means 40 can consist, for example, of a vertical tube connected at its base to suction and/or grinding equipment-- not illustrated in detail here because not directly relevant to this invention.
  • a pallet P containing a stack of filled sacks S is placed on the elevator means 20 of the feed station 2, for example using a lift truck or a transpalfet, not illustrated ( Fig. 12 ).
  • the pallet P containing the stack of sacks S is lifted until the topmost layer of sacks reaches a pre-established height, such that the prongs 16 are at the requisite height relative to the topmost layer of sacks S.
  • This height shall preferably, but not exclusively, coincide with the midpoint of the thickness of the sacks.
  • the carriage 11 completes its forward travel F so that the prongs 16, as they advance, progressively pierce the sacks S of the top layer ( Fig. 14 ).
  • the elevator means 20 are actuated for a short downward travel (figure D in Fig. 15 ) so that the stack of sacks S in the pallet is separated from the topmost layer of sacks S pierced by the prongs 16, allowing the pierced sacks to be carried along by the carriage 11 during its return travel R, without the friction of the sacks S underneath impeding their movement or causing the sacks to detach from the prongs 16.
  • the sacks S carried by carriage 11, during the return travel R, are progressively carried through the rotating circular blades 34, whose angled position slices the lowermost portion of the passing sacks S along a sinusoidal pattern which facilitates the outflow of the powder or granular material into the hopper 31 below ( Fig. 16 ).
  • the same sacks S are carried through the ring-shaped beaters 39, which are likewise rotationally actuated to beat the sliced, lowermost portion of the passing sacks S, to ensure complete emptying of the powder or granular material into the hopper 31 ( Fig. 17 ).
  • This beating action on the bottom of the sacks S in transit likewise advantageously follows a sinusoidal pattern.
  • the carriage 11 continues its return travel R with the sacks S, now completely emptied, attached to the prongs 16; the sacks S are carried to intercept the extractor rake 44, which stops them and pulls them away from the prongs 16 ( Fig. 18 ), allowing them to drop into the tube conveyor 40 that carries them down to a position near the ground ( Fig. 19 ).
  • An important feature of the proposed machine is its ability to operate starting from conventionally stacked and palletized sacks, which can therefore be easily handled with lift trucks; moreover, the machine is able, without any manual intervention, to pick up a layer of sacks at a time, and cut and empty it completely, in an automated, controlled and effective fashion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP16020488.9A 2015-12-16 2016-12-09 Maschine zur entleerung von säcken mit pulver oder granulatmaterial Active EP3181468B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A009504A ITUB20159504A1 (it) 2015-12-16 2015-12-16 Macchina per lo svuotamento di sacchi contenenti materiali in polvere o in granuli

Publications (2)

Publication Number Publication Date
EP3181468A1 true EP3181468A1 (de) 2017-06-21
EP3181468B1 EP3181468B1 (de) 2019-09-04

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ES (1) ES2760799T3 (de)
IT (1) ITUB20159504A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108839882A (zh) * 2018-05-14 2018-11-20 宿迁市金田塑业有限公司 全自动破包上料设备
CN109941544A (zh) * 2019-04-15 2019-06-28 宁波格劳博机器人有限公司 锂电池原料拆袋装置及其投料站
WO2020038890A1 (de) * 2018-08-21 2020-02-27 Logistik Werfring Gmbh Vorrichtung zur sackentleerung
CN110844302A (zh) * 2019-11-27 2020-02-28 上海与非日用品有限公司 一种便于倾倒的可隔离米桶
CN112791944A (zh) * 2021-01-11 2021-05-14 王静霞 一种破损茶包回收处理分离筛分装置
FR3103467A1 (fr) 2019-11-27 2021-05-28 Mat Recycling Installation de transfert de granulés de matière et procédé de transfert de granulés de matière
CN112960410A (zh) * 2021-03-25 2021-06-15 浙江威尔博环保科技有限公司 一种多功能自动化投料设备
CN113928671A (zh) * 2021-09-30 2022-01-14 衡阳鑫山机械设备制造有限公司 用于血浆袋破袋机的锤击式分离装置
CN114713126A (zh) * 2022-06-08 2022-07-08 中化工程沧州冷却技术有限公司 一种填料用自动进料搅拌机

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1105006A (en) * 1966-10-27 1968-03-06 Grun Kg Fa Geb Device for the automatic cutting-open and emptying of packages
US3467267A (en) * 1966-07-01 1969-09-16 Welvo Nv Method and device to empty closed sacks filled with particulate material
GB1202771A (en) * 1968-01-03 1970-08-19 Simon Handling Eng Ltd Improvements in bag slitting and emptying mechanisms
US3853235A (en) * 1972-02-22 1974-12-10 Johns Manville Apparatus for opening and emptying a container
EP0198685A1 (de) * 1985-04-16 1986-10-22 Palamatic Handling Systems Limited Maschine zum Aufschlitzen und Entleeren von Säcken
DE3643076C1 (en) * 1986-12-17 1988-07-14 Urban Ralf M Dipl Ing Gripping device for picking up bags and conveying them to an emptying device
EP0733552A1 (de) * 1995-03-23 1996-09-25 Tsukasa Industry Co., Ltd. Automatische Beutelöffnungsvorrichtung
FR2800036A1 (fr) * 1999-10-22 2001-04-27 Guerin Systems Installation de vidange automatique du contenu de sacs renfermant des produits en poudre, en grains ou autres
WO2006043261A1 (en) * 2004-10-19 2006-04-27 Ayal Robotics And Engineering Ltd. Apparatus for automatically emptying bags

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467267A (en) * 1966-07-01 1969-09-16 Welvo Nv Method and device to empty closed sacks filled with particulate material
GB1105006A (en) * 1966-10-27 1968-03-06 Grun Kg Fa Geb Device for the automatic cutting-open and emptying of packages
GB1202771A (en) * 1968-01-03 1970-08-19 Simon Handling Eng Ltd Improvements in bag slitting and emptying mechanisms
US3853235A (en) * 1972-02-22 1974-12-10 Johns Manville Apparatus for opening and emptying a container
EP0198685A1 (de) * 1985-04-16 1986-10-22 Palamatic Handling Systems Limited Maschine zum Aufschlitzen und Entleeren von Säcken
DE3643076C1 (en) * 1986-12-17 1988-07-14 Urban Ralf M Dipl Ing Gripping device for picking up bags and conveying them to an emptying device
EP0733552A1 (de) * 1995-03-23 1996-09-25 Tsukasa Industry Co., Ltd. Automatische Beutelöffnungsvorrichtung
FR2800036A1 (fr) * 1999-10-22 2001-04-27 Guerin Systems Installation de vidange automatique du contenu de sacs renfermant des produits en poudre, en grains ou autres
WO2006043261A1 (en) * 2004-10-19 2006-04-27 Ayal Robotics And Engineering Ltd. Apparatus for automatically emptying bags

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108839882A (zh) * 2018-05-14 2018-11-20 宿迁市金田塑业有限公司 全自动破包上料设备
WO2020038890A1 (de) * 2018-08-21 2020-02-27 Logistik Werfring Gmbh Vorrichtung zur sackentleerung
US11760523B2 (en) 2018-08-21 2023-09-19 Logistik Werfring Gmbh Bag emptier device
CN109941544A (zh) * 2019-04-15 2019-06-28 宁波格劳博机器人有限公司 锂电池原料拆袋装置及其投料站
CN109941544B (zh) * 2019-04-15 2020-05-26 宁波格劳博机器人有限公司 锂电池原料拆袋装置及其投料站
CN110844302A (zh) * 2019-11-27 2020-02-28 上海与非日用品有限公司 一种便于倾倒的可隔离米桶
FR3103467A1 (fr) 2019-11-27 2021-05-28 Mat Recycling Installation de transfert de granulés de matière et procédé de transfert de granulés de matière
CN112791944A (zh) * 2021-01-11 2021-05-14 王静霞 一种破损茶包回收处理分离筛分装置
CN112791944B (zh) * 2021-01-11 2022-03-15 湖南省明伦茶业有限公司 一种破损茶包回收处理分离筛分装置
CN112960410A (zh) * 2021-03-25 2021-06-15 浙江威尔博环保科技有限公司 一种多功能自动化投料设备
CN113928671A (zh) * 2021-09-30 2022-01-14 衡阳鑫山机械设备制造有限公司 用于血浆袋破袋机的锤击式分离装置
CN114713126A (zh) * 2022-06-08 2022-07-08 中化工程沧州冷却技术有限公司 一种填料用自动进料搅拌机

Also Published As

Publication number Publication date
ES2760799T3 (es) 2020-05-14
EP3181468B1 (de) 2019-09-04
ITUB20159504A1 (it) 2017-06-16

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