EP0028219B1 - Apparat zum automatischen füllen von säcken an rotierenden sackfüllmaschinen - Google Patents

Apparat zum automatischen füllen von säcken an rotierenden sackfüllmaschinen Download PDF

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Publication number
EP0028219B1
EP0028219B1 EP80900674A EP80900674A EP0028219B1 EP 0028219 B1 EP0028219 B1 EP 0028219B1 EP 80900674 A EP80900674 A EP 80900674A EP 80900674 A EP80900674 A EP 80900674A EP 0028219 B1 EP0028219 B1 EP 0028219B1
Authority
EP
European Patent Office
Prior art keywords
bag
synchronizer
mouth
carousel
fact
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.)
Expired
Application number
EP80900674A
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English (en)
French (fr)
Other versions
EP0028219A1 (de
Inventor
Enrica née FORNERA BELLINI
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.)
ANSTALT INDUSTRIE BERATUNG
Original Assignee
ANSTALT INDUSTRIE BERATUNG
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.)
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Publication date
Application filed by ANSTALT INDUSTRIE BERATUNG filed Critical ANSTALT INDUSTRIE BERATUNG
Publication of EP0028219A1 publication Critical patent/EP0028219A1/de
Application granted granted Critical
Publication of EP0028219B1 publication Critical patent/EP0028219B1/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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/262—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks opening of valve bags

Definitions

  • the present invention relates to an automatic bag loader apparatus on rotary bagging machines, comprising a roundabout provided with carrying arms, at their ends, threading clamps each capable of grasping a bag by its end provided with a mouth, as described in FR-A N o 2350258.
  • Said patent application FR-A No 2350258 relates to an automatic machine for threading bags for bagging machine for powdery, granular or similar materials.
  • This machine includes a bag distribution device which distributes them one after the other to bag threading devices and to mechanical groups which collect the bag from the distributor, arrange the base of the bag on which the mouth is made in a flat position and open the mouth, check the efficiency of the mouth itself, thread the filling neck of the bagging machine and eliminate the bag in the event of a defect.
  • the bag threading devices of this machine can be mobile on rectilinear or circular paths (in a carousel) and serve several filling necks of the bagging machine.
  • rotary bagging machines are known in the trade with several spouts for granular, powdery and similar materials, machines which essentially consist of a sort of silo of cylindrical shape rotating on the base, on the lower external wall of which are applied a series of bagging stations, essentially consisting of a nozzle or bagging spout, on which the bags are threaded, of the self-closing mouth type, and a weighing apparatus and means by which, when the desired weight has been obtained, the material exit from the nozzle is stopped and the bag is expelled which is removed by usual means.
  • one or more workers must be placed near the bag loading area and having the obligation to take the bag from the package, to cause the mouth of the bag to open by hand. thread on the nozzle.
  • the present invention relates to the bag loader apparatus, characterized in that the carousel is driven in rotation by the bagging machine following contact between gripping means mounted on the arms and a synchronizer mounted on the bagging machine and allowing to drive the carousel in synchronism with the bagging machine, so that the mouth of the open bag is threaded frontally on a nozzle of the bagging machine due to the sliding of the threading clamp in a channel forming part of the synchronizer mounted on the bagger in the axis of the nozzle.
  • Such an apparatus can also be applied to a new bagging machine or not of any type or size, without any substantial modification, that is to say by adapting only the relative position of the axis of rotation and the length of the arm of the armory to the diameter and the number of nozzles of the bagger to which it must be applied.
  • any rotary bagging machine of known type provided with a number of loading stations, two of which are visible in FIGS. 1, 2, 3 and, in particular, the respective loading nozzles or nozzles 2 and 3.
  • the device for removing the bags from the package consists essentially of a suction element 4 mounted on two pistons 5 and 6, capable of causing it to execute two movements: one from top to bottom and one from front to back.
  • Its function is to take a bag 8 from a stack of bags 7 and feed it to the prepositioning device.
  • the prepositioning device consists essentially of a conveyor belt 9 which is able to receive the bag and move it to the prepositioning device itself consisting of a deflecting member 10 which deflects the head of the bag at 90 °, a vertical belt conveyor 11 and a bag stop and retaining device 12 comprising, the first, a sensitive member not shown in the figure (for example a photoelectric cell or equivalent means), which stops the vertical conveyor when the mouth of the bag has passed the stop and retaining member 12, the latter being formed by two claws, one of which is fixed and the other is actuated by a piston, which operates so as to tighten, at intervals, the bag under the mouth, while a slight reverse movement is imparted to the transporter, in order to arrange the mouth of the bag horizontally, the whole corresponding, as regards the manufacturing and operating characteristics, to the device if milaire described in the aforementioned French patent application.
  • a sensitive member not shown in the figure for example a photoelectric cell or equivalent means
  • the device for picking up and moving the bag towards the bag threading clamp consists essentially of suction cups 13 for taking hold of the mouth of the bag, which thus open the mouth and a piston device 14 capable of making move said suction cups up and down and vice versa, so as to take the upper edge of the mouth of the bag, retained by claws 12 and open the mouth, and back and forth, according to the arrow in fig. 2, so as to move the bag towards the bag threading clamp.
  • This clamp essentially consists of two claws 19 which are able to open or close on command on the open mouth of the bag which can be actuated by known means (mechanical, pneumatic, etc.) and capable of holding it opened.
  • the clamp is in the open position when the arm which carries it is in the position of the arm 17 "of fig. 2; it then closes on the bag according to fig. 1 and 3, in order to keep the mouth open. It enters a synchronizer 25, 26 (see fig. 1), remains so until it has threaded on the nozzle the bag mounted on it (see fig. 3) and, then, it opens again (see fig. 1 and 2, 17 'arm) in the synchronizer output phase.
  • the clamp is mounted on the respective arm 17 and is fixed to one end of a shaft 20 passing through the sleeve 18, capable of turning in the latter and provided, on the opposite side, with a roller 21.
  • a small arm 22 parallel to the clamp 19 and carrying, at the opposite end, at the top of a small shaft 24, a second roller 23 located at a level greater than that where the roller 21 is located.
  • rollers serve to guide the clamp 19 and to lead it in the right direction, according to the position which it must assume, because to angular displacements of the roller 23 correspond equal angular displacements of the clamp 19.
  • the synchronizer 25, 26 (see in particular fig. 8 and 9) essentially comprises an inverted U-shaped guide channel made up of two sectors, a first rectilinear 25 and a second conical curvilinear 26 arranged in the extension of the anterior end of the sector straight.
  • the synchronizer 25, 26 is mounted using flanges 27 and 27 '(fig. 2) by the other end of its straight section on the outer wall of the bagging machine on the nozzle 2 or 3, so that the respective horizontal axes are at the same vertical level.
  • the curvilinear sector is mounted and arranged following that rectilinear by means of flanges 48 (fig. 8 and 9) welded on the upper terminal part of the rectilinear channel and carrying, at their top, a sleeve 28 in which a shaft 29 rotates on the ends of which are mounted a sleeve 30 which carries flanges 31 and 32 and a sleeve 33 on which is mounted a flange 34.
  • the flanges 31 and 34 are welded to the upper face of the curvilinear sector 26 of the above synchronizer.
  • the flange 32 projects laterally from the synchronizer 25, 26.
  • the roller 38 is at the same horizontal level as the flange 32, so as to act on the latter by pushing it and thereby causing an angular rotation of the curvilinear part anterior of the synchronizer 25, 26 in order to move it away because, in this position, it no longer cooperates with the rollers 21 and 23 for guiding the bag threading clamp 19.
  • two curvilinear appendages are placed towards outside 40 and 41 and arranged at two superimposed levels, corresponding to two levels of rollers 21 and 23.
  • a first fixed cam 42 having the function of acting on the roller 39 of the lever 36 to cause the curvilinear section of the synchronizer to move away and allow the guide rollers of the clamp to no longer come into contact with this curvilinear section, but with the curvilinear appendages 40 and 41, so to have the clamps 19 in the position closest to that of the reception of the bags, a position which is then defined and corrected by a second fixed cam 43 disposed behind.
  • a movable cam 44 controlled by a piston 45 and which, in the rest position, does not intercept the roller 39 of the lever 36.
  • the control circuit comes to actuate the piston, section 26 of the synchronizer moves away and we avoids taking the bag threader.
  • a cam 46 is arranged on the shaft of the carousel 15, a cam against which the roller 47 is pressed, urged by a spring, so that , when the carousel 15 is not subjected to the driving force, it remains in the desired position where the two aforementioned elements 46 and 47 meet.
  • the bagging machine 1 rotates by its own means in the direction of the arrow.
  • the removal device Via the removal device, the bag 8 is removed from the package 7 and deposited by the suction cups 4 on the conveyor belt 9 which leads it to the prepositioning device.
  • the bag is placed vertically, with the end provided with the mouth at the top, and in the flat position blocked by the claws 12.
  • the device for taking the bag comes into action, retained by the claws 12 which close under the mouth so that the suction cups 13 which take the upper part of the mouth and pull it upwards, opening the mouth, approach.
  • the claws 12 open and the device 14 moves the bag under the claws 19 opened by the bag threading clamp placed at the top of the arm 17 'which is currently stopped opposite the movement device, retained in the correct position by the action of the meeting of a notch of the cam 46 with the stop roller 47.
  • the appendages 40 and 41 interfering with the guide rollers 21 and 23 of the clamp 19, direct it into the position closest to the reception of a new bag, position which is definitively corrected and defined by the successive meeting of the above rollers 21 and 23 with the cam 43.
  • the piston 45 controlled by an appropriate detector circuit, announces the presence of the bag on the nozzle and pushes forward the cam 44 which, by acting on the lever 36 causes, in contact phase, the distance from the front section 26 of the synchronizer which no longer hooks the clamp; the station goes past without hanging it, and the gripper remains waiting for the next station of the bagger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Basic Packing Technique (AREA)

Claims (7)

1. Apparat zum automatischen Füllen von Säkken an rotierenden Sackfüllmaschinen (1) mit einem Karussell (15), das mit Tragarmen (17, 17', 17") versehen ist, an deren Enden Steckzangen (19) zum Ergreifen je eines Sackes (8) an seinem mit offenem Mund versehenen Ende vorgesehen sind, dadurch gekennzeichnet, dass das Karussell (15) durch die Sackfüllmaschine (1) in Rotation bringbar ist, dies infolge des Eingriffes der auf den Tragarmen (17, 17', 17") angeordneten Greifmittel (21, 23) in ein Synchrongetriebe (25, 26), das an der Sackfüllmaschine (1 ) angebracht ist und einen synchronen Antrieb des Karussells (15) mit der Sackfüllmaschine (1) ermöglicht, derart dass durch Gleiten der Steckzange (19) in einer Rinne (25) des an der Sackfüllmaschine (1) in der Achse des Auslaufrohres (2) montierten Synchrongetriebes, der offene Mund des Sackes (8) frontal auf ein Auslaufrohr (2) der Sackfüllmaschine einfädelbar ist.
2. Apparat nach Anspruch 1, dadurch gekennzeichnet, dass die Greifmittel des Karussells (15) aus zwei Rollen (21, 23) bestehen, die in zwei übereinanderliegenden Ebenen am oberen Ende einer vertikalen Welle (20) angeordnet sind, die in einem Lager (18) am Kopf jedes Tragarms (17,17', 17") des Karussells (15) drehbar ist und deren unteres Ende mit der Steckzange (19) verbunden ist, wobei die erste Rolle (21) in der Achse der Welle (20) und die zweite Rolle (23) auf dem Kopf eines horizontalen Arms (22) angeordnet sind, der parallel zur horizontalen Achse der Steckzange (19) mit der Welle (20) fest verbunden ist.
3. Apparat nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass das Synchrongetriebe (25,26) aus zwei umgekehrten U- Rinnen (25,26) gebildet ist, wobei die erste (25) geradlinig, unmittelbar mit der Sackfüllmaschine (1) verbunden und in der Achse des Auslaufrohres (2) der Sackfüllmaschine (1) angebracht ist, und wobei die zweite (26) in der Verlängerung der ersten angeordnete, ein gebogenes, sich gegen das Ende erweiterndes Konusprofil aufweisende Rinne (26) von der ersten Rinne (25) getragen wird und um eine vertikale Welle (29) in einer horizontalen Ebene aus einer ersten Stellung in eine zweite Stell ung und umgekehrt schwenkbar ist, um die Rollen (21, 23) einhängen zu können oder nicht.
4. Apparat nach Anspruch 3, dadurch gekennzeichnet, dass die zweite Rinne (26) immer entfernt ist, wenn die Steckzange (19) nach dem Zusammenwirken mit dem Auslaufrohr (2) ausfährt, da ein auf dem Synchrongetriebe (25, 26) angebrachter, L-förmiger Hebel (36) mit einer ersten, nahe der Steckzange (19) fest angeordnete Kurvenscheibe (42) zusammenwirkt, und die zweite Rinne (26) zeitweise entfernt ist, wenn das Vorhandensein eines Sackes (8) am herbeigeführten Auslaufrohr (2) angezeigt ist, da ein Kolben (45) eine bewegliche Kurvenscheibe (44) steuert, die gegenüber dem Einlass der Steckzange (19) angeordnet ist, wobei der Kolben (45) beim Vorhandensein eines Sackes (8) vor dem Auslaufrohr (2) durch einen Feststellkreis steuerbar ist.
5. Apparat nach den Ansprüchen 3 und 4, dadurch gekennzeichnet, dass anschliessend an einen Längsteil der ersten geraden Rinne des Synchrongetriebes (25, 26) zwei gebogene Ansatzstücke (40, 41 ) vorgesehen sind, gegen welche, infolge der Entfernung in der Austrittsphase des gebogenen Abschnitts des Synchrongetriebes (25, 26), die Rollen (21,23) anliegen, um die Zange (19) in die richtige Lage für die Aufnahme eines neuen Sackes (8) zu orientieren, wobei diese Lage durch das Anliegen der Rollen (21, 23) an einer zweiten festen Kurvenscheibe (43) berichtigt werden kann, die, von der Ausgangslage des Synchrongetriebes (25, 26) zur Abfüllage des Sackes (8), in der Laufbahn der Zange (19) liegt.
6. Apparat nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass die Säcke (8) mittels einer Vorrichtung (14) zum Öffnen des Mundes und zum Verschieben des Sackes auf die Steckzange (19) befestigbar sind, und dass eine mit Saugnäpfen (13) versehene, von oben nach unten und von vorne nach hinten bewegbare Stange, mit der ersten Bewegung das Öffnen des Mundes des Sackes (8) bewirkt, der mit der mit dem Mund versehenen Basis im flachen Zustand unter die Stange angeordnet ist, dies mit Hilfe einer Vorrichtung (9) für die Entnahme und Vorplazierung des Sakkes und, mit der zweiten Bewegung den Mund zwischen die Krallen der Greifzangen (19) verschiebt, welche am Kopf der Arme (17, 17', 17") des Karussells (15) angeordnet sind, das in diesem Zeitpunkt gegenübersteht.
7. Apparat nach Anspruch 6, dadurch gekennzeichnet, dass die Verschiebung des Sackes (8) und der Vorrichtung (14) für das Öffnen des Mundes und die Verschiebung des Sackes beim Stillstand des Karussells erfolgt, das durch die Aussparungen einer fest mit der Welle des Karussells (15) verbundenen Kurvenscheibe (46), kombiniert mit einem Anhalte- und Federdruckelement (47), arretierbar ist.
EP80900674A 1979-05-08 1980-11-17 Apparat zum automatischen füllen von säcken an rotierenden sackfüllmaschinen Expired EP0028219B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH428479A CH636313A5 (it) 1979-05-08 1979-05-08 Apparecchio caricatore automatico di sacchi muniti di valvole su insaccatrici ruotanti.
CH4284/79 1979-05-08

Publications (2)

Publication Number Publication Date
EP0028219A1 EP0028219A1 (de) 1981-05-13
EP0028219B1 true EP0028219B1 (de) 1983-07-20

Family

ID=4273237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80900674A Expired EP0028219B1 (de) 1979-05-08 1980-11-17 Apparat zum automatischen füllen von säcken an rotierenden sackfüllmaschinen

Country Status (10)

Country Link
US (1) US4648234A (de)
EP (1) EP0028219B1 (de)
BE (1) BE882962A (de)
BR (1) BR8008675A (de)
CH (1) CH636313A5 (de)
DE (1) DE3064211D1 (de)
ES (1) ES491246A0 (de)
IT (1) IT1141862B (de)
MX (1) MX149523A (de)
WO (1) WO1980002409A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610945C1 (en) * 1986-04-02 1987-08-13 Hans Lissner Apparatus for transferring sacks to a filling nozzle of a packing machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723392A (en) * 1986-10-16 1988-02-09 Furukawa Mfg. Co. Ltd. Vacuum packaging method and apparatus
IT1197529B (it) * 1986-10-30 1988-11-30 Car Ventomatic Spa Dispositivo infilasacchi per impianti caricatori automatici di sacchi su insaccatrici rotative
JP4350275B2 (ja) * 2000-06-15 2009-10-21 東洋自動機株式会社 スパウト挿入装置
ES2310689T3 (es) * 2002-12-27 2009-01-16 Advanced Plastics Technologies Luxembourg S.A. Aparato y procedimiento para la fabricacion y llenado de bolsas flexibles.
JP6961549B2 (ja) * 2018-07-27 2021-11-05 Ｐａｃｒａｆｔ株式会社 包装システム

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756906A (en) * 1952-04-01 1956-07-31 Clarence F Carter Filling machine
US3213588A (en) * 1961-03-02 1965-10-26 St Regis Paper Co Automatic valve bag applicator
GB1052335A (de) * 1963-04-29 1966-12-21
GB1418131A (en) * 1972-02-19 1975-12-17 Nakashima S Automatic package bag feeding device for use with an automatic charging device
GB1478507A (en) * 1974-01-04 1977-07-06 Windmoeller & Hoelscher Machine for sliding valved sacks onto the filling nipple of a filling machine
AT358990B (de) * 1974-05-03 1980-10-10 Beumer Maschf Bernhard Vorrichtung zum aufstecken von mit fein- koernigem schuettgut, insbesondere zement, zu fuellenden ventilsaecken auf einen fuellstutzen einer fuellmaschine
IT1062787B (it) * 1976-05-06 1985-01-14 Ventomatic Italiana Srl Macchina automatica infilasacchi su insaccatrici per materiali granulari pulvurulenti e simili
FR2423401A1 (fr) * 1978-04-21 1979-11-16 Peters Ag Claudius Machine a remplir les sacs a valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610945C1 (en) * 1986-04-02 1987-08-13 Hans Lissner Apparatus for transferring sacks to a filling nozzle of a packing machine

Also Published As

Publication number Publication date
ES8102037A1 (es) 1980-12-16
EP0028219A1 (de) 1981-05-13
WO1980002409A1 (en) 1980-11-13
IT1141862B (it) 1986-10-08
BE882962A (fr) 1980-08-18
DE3064211D1 (en) 1983-08-25
US4648234A (en) 1987-03-10
MX149523A (es) 1983-11-18
ES491246A0 (es) 1980-12-16
BR8008675A (pt) 1981-04-14
CH636313A5 (it) 1983-05-31
IT8085555A0 (it) 1980-05-07

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