EP0003724A1 - Maschine zum mechanischen Öffnen und Entleeren von Säcken welche eine giftige Substanz enthalten können - Google Patents

Maschine zum mechanischen Öffnen und Entleeren von Säcken welche eine giftige Substanz enthalten können Download PDF

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Publication number
EP0003724A1
EP0003724A1 EP79870002A EP79870002A EP0003724A1 EP 0003724 A1 EP0003724 A1 EP 0003724A1 EP 79870002 A EP79870002 A EP 79870002A EP 79870002 A EP79870002 A EP 79870002A EP 0003724 A1 EP0003724 A1 EP 0003724A1
Authority
EP
European Patent Office
Prior art keywords
bag
cutting
machine according
bags
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
EP79870002A
Other languages
English (en)
French (fr)
Other versions
EP0003724B1 (de
Inventor
Mario V. Murer
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.)
ATELIERS DE CONSTRUCTIONS MECANIQUES ARMAND COLINET SA
COLINET CONST MEC
Original Assignee
ATELIERS DE CONSTRUCTIONS MECANIQUES ARMAND COLINET SA
COLINET CONST MEC
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
Priority claimed from BE184946A external-priority patent/BE863699A/fr
Application filed by ATELIERS DE CONSTRUCTIONS MECANIQUES ARMAND COLINET SA, COLINET CONST MEC filed Critical ATELIERS DE CONSTRUCTIONS MECANIQUES ARMAND COLINET SA
Publication of EP0003724A1 publication Critical patent/EP0003724A1/de
Application granted granted Critical
Publication of EP0003724B1 publication Critical patent/EP0003724B1/de
Expired 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 subject of the invention is a machine for mechanical opening and emptying of bags which may contain a toxic product.
  • the contents of the bags can be harmful to health either because it is dangerous to touch, absorb or breathe, or because its fumes or radiation attack human tissue. This is particularly the case with corrosive products, or powdery or fibrous products, such as asbestos, for example, the dust of which can cause lung cancer.
  • the invention aims to obtain a good production rate with reduced labor without affecting health even if the contents of the bags are toxic, by opening and emptying the bags mechanically near the station of use of the product.
  • the invention therefore relates to a machine for mechanical opening and emptying of bags which may contain a product. toxic.
  • It comprises a conveyor intended to bring each bag to a product hopper, cutting means capable of cutting three sides of the bag during the advancement of the latter and a gripping assembly capable of gripping the cut bag, moving it, empty it into the hopper and bring it to an evacuation location, the machine being able to be equipped with means suitable for automatically controlling the conveyor, the cutting means and the gripping assembly according to a predetermined cycle of operations.
  • the machine may further include a means for driving empty bags.
  • the machine can be housed in an enclosure and this can be put under vacuum.
  • the cutting means capable of cutting three sides of a bag are two cutting elements with a vertical axis each carried at one end of an arm, the other end of which is articulated on a constraint system capable of constantly bringing the cutting element towards the axis of the conveyor, the elements of the restraint system being fixed respectively to the left and to the right of the conveyor, so that the first cutting element, which encounters a bag, cuts in a single stroke part of the front face of the bag and a side face, the second cutting element then cutting the rest of the front face and the other side face.
  • the cutting elements are advantageously rotary discs; they can also be fixed knives or any other equivalent means.
  • the gripping assembly comprises a movable support and a gripping means chosen from those which act by hooking, suction and pinching and, the cut bag being fixed to said means, the movement of the support causes the bag to deploy over its length twice above the product hopper.
  • the gripping assembly can be movable in a horizontal plane.
  • the gripping assembly is movable in a vertical plane.
  • This set is made up by a box which carries rotary hooking hooks and is secured to two arms capable of pivoting about an axis so that, the hooks having been inserted in the upper part of a cut bag, the rotation of the arms makes it possible to deploy it above the hopper to empty it and direct the emptied bag to its disposal location.
  • the machine according to the invention advantageously comprises, in order to prevent accidental falling into the hopper of bags and parts of cut bags, in addition to a conveyor, two cutting means and a gripping assembly of the mobile type, a drive means, mounted in the path of the path of the emptied bag and suspended from the box of the gripping assembly, which comprises two rollers arranged in a V shape able to approach each other and to rotate so as to pinch the emptied bag and to drive it towards the evacuation location, in particular when the emptied bag is released from the gripping assembly.
  • the bag opening and emptying machine comprises a carrier 1 for bags, two cutting means 2, 2 'for bags, a product hopper 3, a gripping assembly 4 for cut bags, a means for drive 5 of cut bags and an evacuation location 6 of empty bags.
  • the machine further comprises means suitable for automatically controlling the parts. mobile of the machine according to a predetermined cycle of operations, these means not being shown in the accompanying drawings.
  • the closed bags 7, filled with a product to be poured into the hopper, are designated by 7 and any means intended to convey the bags to the machine; this means can be a conventional transporter.
  • 9 indicates an enclosure which surrounds the machine; the enclosure can possibly be placed under vacuum to avoid the dispersion of dust outside. It should be noted, however, that the machine must not be housed in an enclosure if one can work in the open air, and that it suffices to provide a suction device if the opening and emptying of the bags give off dust.
  • Each cutting means 2, 2 t comprises a movable cutting element above the conveyor 1, and a constraint system intended to constantly bring the cutting element towards the axis 14 of the conveyor.
  • Each cutting element is a disc 20, 20 'with vertical axis 21, 21', which can be rotated by a belt 22, 22 'mounted on the axis of a motor 23, 23'.
  • the vertical axis 21, 21 ' is carried by a pivoting arm 24, 24', articulated around a fixed axis 25, 25 'which also carries a link 26, 26' articulated at the free end of the rod 27 , 27 'of an advantageously pneumatic cylinder 28, 28'.
  • the fixed axis 25, 25 'of pivoting of the arm 24, 24' is located in the axis of the motor 23, 23 '.
  • the cylinders are mounted respectively, one to the left, the other to the right of the conveyor.
  • the constraint device is also adjusted so that the force (arrow 29.29 ′) which it develops is less than the longitudinal force or the sliding force of the bag sliding on the conveyor.
  • a first bag 7 comes into contact with the first rotary disc 20 towards the middle of the front face 70 of the bag, the thrust exerted by the bag on the disc maintaining the contact permanently ( Figures 3, 4 ' ).
  • the bag continuing to advance, the rotating disc causes a cutout 71 in said face 70 ( Figure 4).
  • the bag repelling the disc and the latter resisting the thrust under the effect of the constraint system, the arm 24 is forced to pivot towards the edge of the conveyor, while maintaining contact with the bag, the disc 20 now attacks the lateral face 72 and makes a cutout 73 therein.
  • the disc ceases to be in contact with the bag due to the advancement of the latter, it returns to its initial position at the right of axis 14 of the transporter to allow the next bag to be cut.
  • the cylinder 28 ′ of the cutting means 2 t was fixed to the other bank of the conveyor relative to the cylinder 28 of the cutting means 2 at a distance such that the rotating disc 20 ′ attacks the front face 70 of the bag 7 at the time where the disc 20 begins the cutting of the lateral face 72. ( Figure 4).
  • the disc 20 ', engaged in the beginning of the slot resulting from the cut 71 previously operated by the disc 20 now performs a cut 74 so that the front face 70 is completely notched (Figure 4.).
  • the pneumatic cylinders 28, 28 ' are connected to a compressed air supply, not shown, which provides the bodies of said cylinders 28, 28' with a set pressure.
  • a control device it is possible to stop the advancement of the conveyor 1 when the front of a cut bag 77 is located in line with the drum 12 (FIG. 10) in front of the opening of the hopper 3, and to implement the gripping assembly 4 of the machine.
  • This comprises two parallel arms 40 in L ( Figures 1, 2, 10) whose branches 41 and 42 are articulated around an axis 43 fixed to the enclosure 9; the upper branches 42 carry at their end two beams 44 which support a box 45 crossed by a shaft 46 provided with rotary hooks 47 intended to grip the cut bags.
  • the shaft 46 is connected by a link 48 to the rod of a jack 49, advantageously pneumatic, fixed to one of the uprights 44, and openings 400 and 401 are provided at the base of the box 45 (FIG. 11) in the course of the rotary hooks.
  • the link 48 articulated around the shaft 46, rotates the latter in the direction of clockwise, so that the tips 402 exit through the openings 400, pass through the bag 77 a first time at this location, then a second time at the opening 401, to return to the box.
  • the bag is therefore pierced twice and this safety grip prevents any unhooking of the bag during its movement towards the outlet 6, the bag being emptied into the hopper 3 during this operation.
  • a jack 403 advantageously pneumatic, the bottom of which is attached to a fixed suspension point 90 and of which the rod 404 is integral with a lever 405 articulated around the axis 43 to which the arms 40 in L are linked, the actuation of the jacks 403 having to allow the gripping assembly 4 to travel in substance a quarter of a circle above the hopper 3.
  • a drive means 5 ( Figures 1, 2, 10, 12) intended to participate in the routing of the cut bags to the evacuation 6 of empty bags and especially to prevent the accidental fall of bags and parts of bags in the hopper.
  • This means which is attached to fixed vertical uprights 91, comprises on the one hand, two rollers 51 and 52, one of which can rotate continuously under the action of an electric motor 53 and, on the other hand, two cylinders 54, advantageously pneumatic, each of which is suspended from the bottom to a fixed support 92 integral with the upright 91 and the rod 55 of which acts by a hinge 56 and a pivot point 57 of a bent lever 58-59 itself integral one of the rollers 51 or 52, the pivot point 57 of each of the bent levers being mounted on a cross member 93 fixed between the vertical uprights 91; the drive means further comprises two free rollers 500 parallel to the support 93.
  • the stop of the conveyor 1 triggers the expansion of the jacks 403 (FIG. 10); grip set 4 performs its trajectory in the opposite direction to that of the curved arrows 406 and places the box 45 on the cut bag 77 stopped on the conveyor.
  • the stop of the jacks 403 controls the expansion of the jack 49 so that the hooks 47; advantageously 3 to 5 in number, exit through the openings 400 and return to the box through the openings 401 after having twice pierced the upper part of the bag 77 (FIGS. 10 and 11).
  • the complete expansion of the jack 49 which has enabled gripping, in turn triggers the reaction of the jacks 403 and, simultaneously or almost, the restarting of the conveyor 1.
  • rollers 51 ′, 52 ′ having tightened on the emptied bag drive it towards the discharge opening 6; the free rollers 500, mounted respectively in front of and behind the rollers 51 ', 52', favor the passage.
  • the rollers 51 ', 52' move apart and the whole machine is ready to empty the next bag.
  • the invention is not limited to the embodiment which has been described and shown by way of example and it would not be departing from its scope by making modifications to it.
  • detection and control means such as feelers, photoelectric and infrared cells, limit switches, scales, shutters, etc.
  • the machine can also be controlled manually.
  • the invention obviously does not relate to the application of pneumatic cylinders and they can be replaced by mechanical, hydraulic or other means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
EP79870002A 1978-02-06 1979-01-30 Maschine zum mechanischen Öffnen und Entleeren von Säcken welche eine giftige Substanz enthalten können Expired EP0003724B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE184946 1978-02-06
BE184946A BE863699A (fr) 1978-02-06 1978-02-06 Machine d'ouverture et de vidage mecaniques de sacs pouvant contenir un produit toxique

Publications (2)

Publication Number Publication Date
EP0003724A1 true EP0003724A1 (de) 1979-08-22
EP0003724B1 EP0003724B1 (de) 1981-12-16

Family

ID=3843093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79870002A Expired EP0003724B1 (de) 1978-02-06 1979-01-30 Maschine zum mechanischen Öffnen und Entleeren von Säcken welche eine giftige Substanz enthalten können

Country Status (5)

Country Link
US (1) US4289438A (de)
EP (1) EP0003724B1 (de)
CA (1) CA1124199A (de)
DE (1) DE2961569D1 (de)
FR (1) FR2416182A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499942A1 (fr) * 1981-02-14 1982-08-20 Jsk Materials Handling Ltd Machine a ouvrir les sacs
FR2651172A1 (fr) * 1989-08-31 1991-03-01 Fahr Bucher Gmbh Procede de chargement automatique de machines avec des masses deballees.
EP3556669A1 (de) * 2018-04-20 2019-10-23 Tetra Laval Holdings & Finance S.A. Vorrichtung zur entleerung von beuteln

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3229765A1 (de) * 1982-08-10 1984-02-16 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Vorrichtung zum entfernen einer banderole von einem blattbuendel
DE3467998D1 (en) * 1983-01-18 1988-01-21 Henri Schepens Device for the continuous and automatic opening and emptying of bags
US4610596A (en) * 1984-10-26 1986-09-09 Bouldin & Lawson, Inc. Apparatus for removing cover from baled material
GB9027976D0 (en) * 1990-12-22 1991-02-13 Palamatic Handling Syst Bag slitting machine
US5222511A (en) * 1991-06-27 1993-06-29 Diatec Environmental Apparatus for debagging dust-containing or hazardous materials
US5277014A (en) * 1992-09-14 1994-01-11 Abr Corporation Bag discharge station
GB9222777D0 (en) * 1992-10-30 1992-12-09 Narbonne Yves Apparatus for handling biological fluid bags
US5368432A (en) * 1993-05-06 1994-11-29 Schoenhard; James D. Apparatus and method for opening plastic bags containing recyclable materials
IL106818A (en) * 1993-08-27 1996-10-31 Ima Engineering Ltd Apparatus for removing flexible covers from bales
SE506077C2 (sv) * 1995-03-10 1997-11-10 Bala Press Ab Förfarande för att hantera gods och anordning härför
SE0402848D0 (sv) * 2004-11-22 2004-11-22 Confib Ab Method for dosing reinforcing fibres for the manufacturing of fibre concrete and the continuous packing used
NZ540013A (en) * 2005-08-12 2007-05-31 Powder Projects Ltd Powder handling device
EP2753547B1 (de) * 2011-06-01 2015-05-06 Dirk Barnstedt Vorrichtung zum öffnen von verpackungen
ES2401450B1 (es) * 2011-06-10 2014-04-02 Jesús ORTI ESTIGUIN Máquina para el reciclaje de bolsas de orina y diálisis
FR2996212B1 (fr) * 2012-10-01 2014-10-10 Spcm Sa Installation pour vider des sacs de produits pulverulents et procede mettant en œuvre l'installation
CN107499628B (zh) * 2017-07-31 2019-07-05 赛摩电气股份有限公司 一种模块式连续自动破袋投料机
HUE046003T2 (hu) * 2017-07-31 2020-02-28 Grifols Worldwide Operations Ltd Automatikus berendezés fagyasztott vérkészítmény tasakok ürítésére
RU2704868C1 (ru) * 2019-02-07 2019-10-31 Общество с ограниченной ответственностью "Полипласт" Автоматизированная установка растаривания емкостей и растворения токсичных материалов
CN110745324B (zh) * 2019-10-31 2021-12-28 上海电机学院 一种垃圾袋破袋回收装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2046774A1 (de) * 1969-06-14 1971-03-12 Takiguchi Hirofumi
GB1315853A (en) * 1970-02-12 1973-05-02 Tac Construction Materials Ltd Machine for opening and emptying bags containing fibrous materials
US3853235A (en) * 1972-02-22 1974-12-10 Johns Manville Apparatus for opening and emptying a container
US3948402A (en) * 1973-07-16 1976-04-06 Schott Jr Charles Mandeville Bag opening and emptying

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177726A (en) * 1977-01-12 1979-12-11 Certain-Teed Corporation Automatic bag opener

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2046774A1 (de) * 1969-06-14 1971-03-12 Takiguchi Hirofumi
GB1315853A (en) * 1970-02-12 1973-05-02 Tac Construction Materials Ltd Machine for opening and emptying bags containing fibrous materials
US3853235A (en) * 1972-02-22 1974-12-10 Johns Manville Apparatus for opening and emptying a container
US3948402A (en) * 1973-07-16 1976-04-06 Schott Jr Charles Mandeville Bag opening and emptying

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499942A1 (fr) * 1981-02-14 1982-08-20 Jsk Materials Handling Ltd Machine a ouvrir les sacs
FR2651172A1 (fr) * 1989-08-31 1991-03-01 Fahr Bucher Gmbh Procede de chargement automatique de machines avec des masses deballees.
EP3556669A1 (de) * 2018-04-20 2019-10-23 Tetra Laval Holdings & Finance S.A. Vorrichtung zur entleerung von beuteln
WO2019201946A1 (en) * 2018-04-20 2019-10-24 Tetra Laval Holdings & Finance S.A. Apparatus for emptying bags
US11352160B2 (en) 2018-04-20 2022-06-07 Tetra Laval Holdings & Finance S.A. Apparatus for emptying bags

Also Published As

Publication number Publication date
FR2416182B1 (de) 1982-12-17
FR2416182A1 (fr) 1979-08-31
EP0003724B1 (de) 1981-12-16
CA1124199A (en) 1982-05-25
US4289438A (en) 1981-09-15
DE2961569D1 (en) 1982-02-11

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