EP0009521A1 - Améliorations des machines pour appliquer des sacs aux tuyaux de remplissage des machines de remplissage de sacs - Google Patents

Améliorations des machines pour appliquer des sacs aux tuyaux de remplissage des machines de remplissage de sacs Download PDF

Info

Publication number
EP0009521A1
EP0009521A1 EP78300434A EP78300434A EP0009521A1 EP 0009521 A1 EP0009521 A1 EP 0009521A1 EP 78300434 A EP78300434 A EP 78300434A EP 78300434 A EP78300434 A EP 78300434A EP 0009521 A1 EP0009521 A1 EP 0009521A1
Authority
EP
European Patent Office
Prior art keywords
bag
suction
pick
mouth
machine
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Withdrawn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
EP78300434A
Other languages
German (de)
English (en)
Inventor
Peter John Niccolls
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
Priority to EP78300434A priority Critical patent/EP0009521A1/fr
Publication of EP0009521A1 publication Critical patent/EP0009521A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • 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
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers

Definitions

  • the present invention relates to the machine for applying bags or sacks to the discharge spouts of bag filling machines. More particularly, the invention relates to bag applying machines having a suction transfer device for advancing a bag towards the discharge spout of a filling machine and comprising opposed suction means for engaging opposite sides of the bag adjacent its mouth, and means for parting said opposed suction means so as to open the bag mouth for placing over the discharge spout.
  • the bags or sacks handled by the machines may be made from paper, PVC or other plastics material.
  • United Kingdom Patent specification No.1439687 describes a bag applying machine comprising a suction pick-up device which lifts a bag from a stack of flat bags and turns the bag from the horizontal position into a substantially vertical position, with its mouth disposed along one vertiral side edge of the bag, and a suction transfer device which engages the bag held by the pick-up device, advances the bag from the pick-up device into an upright nosition adjacent the discharge spout of a bag filling machine, with the bag mouth uppermost, and opens 1 bag mouth for placing over the discharge spout.
  • the pick-up device comprises a pair of pick-up arms rockable about a horizontal axis and carrying suction cups for gripping a bag.
  • the stack of bags to be fed to the machine is disposed to one side of the machine and the pick-up arms rock downwardly to engage the suction cups with the top bag in the stack.
  • Suction is thereupon applied to the cups so that they grip the bag and the arms are swung upwardly in a vertical arc to move the bag from the horizontal position, in which it is removed from the stack, into a substantially vertical position with its mouth disposed along one vertical side edge of the bag.
  • the suction transfer device which comprises a pair of transfer arms pivoted on a horizontal axis ar right angles to the pivot axis of the pick-up device and having pairs of opposed suction cups for engaging opposite sides of the bag.
  • Suction is applied to the transfer suction cups, which grip the bag, and is removed from the pick-up suction cups, which release the bag, and the transfer device then swings upwardly to remove the bag from the pick-up device and advance it to the discharge spout of the bag filling machine.
  • the transfer arms are moved apart so that the mouth of the bag is opened and placed over the discharge spout.
  • the open mouth of the bag is not formed to a satisfactory configuration for presentation to the discharge spout of the filling machine and, frequently, results in failure of the mouth to slip over the spout, or incorrect positioning on the spout. and improper operation of the filling process.
  • the pick-up device corr,rises arms which swing in a vertical arc in orner c turn the bag into a substantial vertical position for engagement by the transfer device, the pick-up device cannot commence its next cycle until the bag has been removed from its path of movement by the transfer device, thereby reducing the speed of operation of the machine.
  • only one pick-up device can be provided for feeding the transfer device.
  • the suction means of the transfer device comprises opposed main suction members arranged to engage a bag adjacent one end of its mouth and pivotally mounted so as to be rockable apart to open the mouth of the bag, and opposed auxilliary suction members rockably mounted about the pivot axes of the main suction members and arrange to engage the bag adjacent its mouth at positions spaced from said main suction members, said auxilliary suction members being rockable apart together with the main suction members to assist opening of the bag mouth.
  • the suction members when the suction members are moved apart so as to open the bag mouth, they form the open mouth into a generally oval configuration which facilitates placing of the mouth over the discharge spout of the filling machine.
  • a bag applying machine embodying this invention may include a suction pick-up device arranged to lift the bag from a stack of fl p bags and turn the bag from the horizontal position, in which it is removed from the stack, to a substantially vertical position with its mouth disposed along one vertical side edge of the bag.
  • the transfer device is arranged to engage the bag held by the pick-up device in this substantially vertical position and advance the bag from the pick-up device for placement over the discharge spout of the filling machine.
  • the pick-up device is reciprocable substantially vertically for lifting the bag from the stack and includes suction means for gripping the bag; which is rockable about a substantially horizontal axis so as to turn the bag into the vertical position preparatory to engagement by the transfer device.
  • the pick-up device when the bag has been gripped by the transfer device and released by the pick-up suction means, the pick-up device can immediately commence its next cycle and travel downwardly to lift a succeeding bag from the stack, thereby enabling the speed of operation of the machine to be increased.
  • the pick-up device may be reciprocable along a path disposed to one side of the vertical plane of movement of the transfer device and the pick-up suction means may be arranged to turn the bag substantially into said plane of movement so as to permit the bag to be engaged by the transfer device.
  • the speed of operation of the bag applying machine may be further increased by arranging two such pick-up devices on opposite sides of the plane of movement of the transfer device, the two pick-up devices operating alternately to lift bags from two stacks for successive feeding to the transfer device.
  • the source of suction for the pick-up and transfer devices is preferably a blower unit, such as a side- channel blower, which produces a high degree cf suction and a high volume flow of air.
  • a blower unit such as a side- channel blower
  • This is preferred to a vacuum pump, which prr uces a higher degree of vacuum but a lower volume air flow because the latter is unable to compensate for small leaks which may occur in the suction system.
  • the suction may be applied to the devices via ductacomprising or extending through hollow casings forming the machine frame.
  • the stack of bags may be contained in a fixed magazine on the machine, which magazine can be refilled by hand.
  • stacks of bags may be loaded onto trolleys which can be wheeled into a position beneath the pick-up device and can be changed when necessary.
  • the machine is fed with stacks of bags by a pneumatic system operating a magazine supply to the machine. This system is arranged to slide an empty magazine from under the pick-up device and feed a loaded magazine onto the machine in its place. The empty magazine is then clear of the machine for refilling whilst the machine is removing bags from the loaded magazine.
  • a pneumatic system permits the use of several magazines loaded with different size bags and the system can be selectively operated to load the machine with a magazine containing the size of bag required for filling.
  • the bag applying machine comprises a frame consisting of two upright casings 1, 2 disposed side-by-side in spaced relation and interconnected at their upper ends by a hollow bridge part 3.
  • a horizontal support casing 4 projects from the foot of the upright casing 2.
  • These casings may be prefabricated from sheet metal.
  • a flat suction tank 5 Secured to the casing 2 adjacent its upper end and projecting outwardly above the support casing 4 is a flat suction tank 5 which supports a suction pick-up device 6 for removing bags from a stack of flat bags 7 disposed one on top of another and, in this case, carried on a trolley 8.
  • This trolley has largo castors 9 which permit easy movement of the trolley over rough floor areas as the trolley is wheeled to the machine.
  • the trolley is adapted to straddle the hollow support casing 4 which guides the trolley into the correct nosition under the pick-up device 6.
  • the trolley includes small internal wheels ), schematically illustrated in Figure 6, which assist in accurately guiding the trolley onto the support casing.
  • small additional wheels (not shown) on the underneath of the trolley ride-up the inclined leading edge 11 of the support casing 4, lift the larger running castors 9 off the floor and level the trolley at the correct height for removal of bags from the stack.
  • the pick-up device 6 comprises a pick-up box 12 which is reciprocated vertically by means of a pneumatic cylinder and piston unit 13 mounted within the suction tank 5 and having its piston rod 14 connected to the pick-up box.
  • the latter is guided by two hollow guide rods 15 which are secured to the box 12 and are slidable in sleeves 16 secured to the inside of the bottom of the suction tank.
  • the internal bores of the guide rods are in communication with the interior of the box 12 whilst at their upper ends they open into the suction tank 5.
  • pick-up suction members or fingers Mounted at opposite ends of the pick-up box 12 so as to be rockable about horizontal axes, are two elongated pick-up suction members or fingers 17. These pick-up fingers are more fully illustrated in Figure 4.
  • Each finger is of hollow box-like construction and is of somewhat triangular shape in elevation.
  • a hollow pivot shaft 18 is secured to the finger adjacent its wider end and its bore communicates with the interior of the hollow finger.
  • the finger has a planar suction face defined by a grill 19 having slots 20 communicating with the interior of the finger.
  • the suction face is provided with an elastomeric sealing element 21, conveniently a soft rubber sealing element, which projects proud of the suction face. In operation, the suction draws the fabric of a bag against the rubber sealing element, and this provides friction to hold the bag in place whilst it is bei-g manoeuvred by the suction finger.
  • each suction finger is journalled in the adjacent end of the pick-up box 12 and connects the interior of the box with the interior of the associated suction finger so that suction applied to the tank is also applied to the fingers 17 via the hollow rods 15 and the pick-up box.
  • the suction fingers are actuated by individual pneumatic cylinder and piston units 22 mounted within the pick-up box 12 and connected to crank arms 23 fixed to the pivot shafts 18 of the fingers.
  • the pneumatic units 22 are operable in unison in order to rock the fingers between two positions in which the suction faces 19 of the fingers are respectively horizontal and vertical (see Figure 2).
  • the pick-up device can be lowered so as to engage the fingers with the top bag on the stack 7. (The lowermost position of the pick-up device is illustrated in broken lines in Figures 1 and 2).
  • the top bag is attached to the fingers by the application of suction, via the suction tank 5, and can be lifted from the stack, upon upward travel of the pick-up device, and turned from the horizontal position in which it is removed from the stack into a vertical position by rocking the suction fingers 17 into the positions in which the suction faces 19 are vertical, as the pick-up device is raised to its uppermost position (full lines in Figures 1 and 2.) In this position, the bag hangs from the fingers in a substantially vertical plane or position with its mouth at the side edge of the bag adjacent the upright casings 1, 2.
  • the bag lifted and turned by the pick-up device 6 is carried to the discharge spout 24 of the bag filling machine 25 by a suction transfer device 26.
  • the latter comprises a swinging arm 27 suspended between the upright casings 1 and 2 s ;d having trunnions 28 journalled in these upright casings.
  • the swinging arm is a bifurcated member and has opposed suction operated, bag- holding means 20 mounted at the lower ends of its limbs 30 for engaging, adjacent its mouth, a bag lifted by the pick-up device, and for transferring the bag from the pick-up device to the spout 24.
  • the suction means 29 are moved apart, as will hereinafter be described, to open the mouth of the bag and the swinging arm swings the bag into an upright position with its mouth uppermost for placing over the filling spout.
  • Each suction means 29 includes an elongated suction member in the form of a suction finger 31 identical to the suction fingers 17 and having its hollow pivot shaft 32 journalled in the lower end of the associated limb 30 of the swinging arm.
  • the two suction fingers 31 carried by the limbs 30 are disposed with their suction faces in opposed relation and are arranged so that when the suction means are fully closed together with no bag therebetween, the suction faces of the fingers are mutually parallel and in contact, via their rubber sealing elements.
  • each finger 31 Freely pivoted on the pivot shaft 32 of each finger 31 is a spring-biassed arm 33 which projects forwardly of the associated finger and has an auxilliary suction member in the form of a suction box 34 rockably mounted at its free end in spaced relation with the assoicated suction finger.
  • the suction boxes 34 are mutually opposed and of similar construction to the suction fingers. When the suction means 29 fully close together without a bag therebetween, the suction faces of the boxes 34 are in contact via their rubber sealing elements.
  • Each arm 33 is coupled to its associated suction finger 31, so as to be rockable therewith over a predetermined ar of movement, via a lost motion coupling.
  • the latter comprises a pair of abutments 36, 37 projecting in spaced relation from the suction finger 31 adjacent its pivot shaft and arranged alternatively to engage a small roller 38 mounted on the arm 33 between the abutments.
  • the arm is biassed towards a central position by leaf springs 39 fastened to the arm and engaged between three rollers 40 mounted on the associated limb 30 of the swinging arm.
  • the arrangement is such that each abutment 36 engages the adjacent roller 38, when the suction fingers 31 are rocked towards the closed position, in order positively to close together the suction boxes 34, and each abutment 37 engages the adjacent roller 38 upon opening of the suction fingers in order positively to drive the suction boxes to an open position during the final arc of opening movement of the suction fingers.
  • Suction is applied to the suction fingers 31 and boxes 34 via the swinging arm 27 which is of hollow construction;
  • the pivot shafts 32 of the suction fingers are in communication with the hollow interiors of the associated limbs 30 of the swinging arm, whilst the suction boxes 34 are connected to these limbs via pipes 42 fastened by suitable couplings to the ends of hollow pivot shafts 43 of the suction boxes, which shafts are journalled in collars 44 at the free ends of the supporting arms 33.
  • this assembly comprises a pair of pneumatic cylinder and piston units 46, 47 mounted side-by-side and having their piston rods interconnected by a yoke member 48 which is pivoted to each piston rod.
  • the centre of the yoke member 48 is connected to crank arms 49 fixed to the pivot shafts 32 of suction fingers 31 by two rods or cables, in this case Bowden cables 50, extending through the adjacent trunnion 28 of the swinging arm and the hollow limbs 30 of the arm.
  • This assembly moves the suction fingers 31 in unison.
  • both units 46, 47 When the pistons of both units 46, 47 are fully retracted the suction fingers and boxes are fully closed together. When both pistons are fully extended, the suction boxes and fingers are in their fully open position. When either one or other piston is extended and the other is retracted, the suction fingers and boxes are in a half-open position. The latter position permits the suction assemblies 29 to pass between the guide boards 48 of the conveyer mechanism 49 associated with the filling spout, during the return stroke of the swinging arm.
  • the swinging arm 27 is moved between predetermined stations over its arc of movement by means of three pneumatic cylinder and piston units 50, 51, 52 connected in series ( Figure 7). These are mounted within the upright casing 2 and are connected between the casing and a crank arm 53 secured to the adjacent trunnion 28 of the swinging arm.
  • the three series connected pneumatic units 50, 51, 52 are actuated in a predetermined secruence to rock the swinging arm through the following stations during each transfer cycle.
  • the arm is rocked to a ccllecting station 54, at which it engages a bag carried by the pick-up device 6.
  • the arm is then advanced to a ready station 56, at which the suction means 29 are fully opened to open the mouth of the bag preparatory to placing it over the filling spout 24, and subseque tly to a bag clamping station 57, at which the bag mouth is placed over and clamped to the filling spout.
  • a bag clamping station 57 at which the bag mouth is placed over and clamped to the filling spout.
  • the pneumatic units 50, 51, 52 are fully retracted, as illustrated in Figure 7.
  • the pneumatic units rock the swinging arm from the bag clamping station back to the ready station 56, during which period the suction means 29 are half closed together, and thereafter to a near- vertical, rest station 55 in which the swinging arm is stopped preparatory to commencing the next transfer cycle.
  • the source of suction for the machine is a side- channel blower 58, which is connected by a duct 59 to a cleaning box 60 mounted within the upright casing part 2.
  • the cleaning box 60 has a removable bottom (not shown) so as to allow for removal of dirt sucked into the system through both sets of suction means and deposited in the cleaning box.
  • the suction tank 5 is connected to the cleaning box 60 by a duct 61 extending through the upright casing 2.
  • a duct 62 extending through the upright casing 2, the hollow bridge part 3 and coupled to the hollow trunnion 28 within the casing part 1 connects the interior of the hollow swinging arm 27, and hence the suction means 29 to the cleaning box.
  • Both ducts 61, 62 are connected to the cleaning box via valves 63, 64, respectively.
  • the electrical and pneumatic control systems 66, 67, respectively, for the machine are mounted within the upright casing 1 and comprise plug-in modules so that the electrical control relays 68 and the pneumatic valves 69 controlling the supply of air pressure to the various pneumatic cylinders can be readily changed by merely unplugging a defective component and replacing it with a new component.
  • the pneumatic control module is connected to a pneuantic junction box 70 having plug-in connections for the pneumatic pipes 71 connecting the module to the pneumatic cylinders.
  • the sequence of operations of the machine is as follows. Upon switching-on the electrical mains supply to the machine, the blower 58 is started and the following sequence of operations occurs:-
  • a trolley 8 loaded with a stack of paper or plastics bags to be filled is moved onto the support casing 4, the mouths of the bags being adjacent the upright casings 1, 2.
  • a microswitch is located in a suitable position on the casings to detect the presence of a stack of bags in position on the machina and, if absent, prohibits the machine from operating. With the stack of bags in position, the operator initiates automatic operation or the machine by depressing a cycle start switch, whereupon the air valves 63, 64 are closed and air pressure is applied to the pneumatic cylinder 13 so as to drive the pick-up box 12 downwardly until a microswitch on the bottom of the box touches the top bag of the stack loaded onto the machine. When this bottom microswitch is actuated, the following sequence of operations occurs:-
  • the suction box 12 When the suction box 12 reaches its uppermost position, the bag has been turned into a vertical position or plane with its mouth disposed along the end or side edge of the bag adjacent the upright casings. A microswitch on top of the box is then actuated and this checks with a suction switch within the suction box to detect that a bag is in place. In the affirmative, these two switches provide a signal to initiate movement of the swinging arm 27 to the collecting station 54.
  • the swinging arm is rocked into the collecting station by actuation of one or more of the pneumatic cylinders .50, 51, 52 and, at the same time, the suction holding means 29 are rocked into their fully open position.
  • a first microswitch associated with the swinging arm trunnions 28 is actuated to cause air pressure to be applied to the cylinders 46, 47 so as fully to retract their piston rods and cause the suction means 29 to close together and grip the bag adjacent its mouth.
  • the suction fingers 31 grip the bag held by the pick-up device over an extended zone adjacent the upper end of the bag mouth, whilst the suction boxes 34 grip the bag adjacent the lower end of the mouth.
  • a first microswitch associated with one of the suction fingers 31 is actuated which initiates the following sequence of operations:-
  • the swinging arm 27 with the bag gripped between the suction means 29 is now rocked by actuation of the pneumatic cylinders 50, 51, 52 into the ready station 56, this movement swinging the bag towards an upright position with its mouth uppermost.
  • a second microswitch associated with the swinging arm trunnions 28 detects when the swinging arm is at the ready station and is connected in series with a suction switch responsive to suction within the swinging arm to detect that a bag is carried by the suction means at this station.
  • the pneumatic cylinders 46, 47 are actuated so as to extend their piston rods and fully open the suction means 29, thereby to form the mouth of the bag into a generally oval shape for placirg over the spout (see Figure 3,) and a second microswitcb associated with thc suction fingers 31 actuates the pneumatic cylinders 50, 51, 52 to complete the forward stroke of the swinging arm and place the open mouth of the bag over the discharge spout 24.
  • Movement of the swinging arm into the bag clamp ng station 57 actuates a third microswitch associated with the swinging arm trunnions which signals the existing bag clamp electrical circuit to close the bag clamp and grip the bag to the discharge spout. Closure of the bag clamp is detected by a microswitch on the spout and when this microswitch is actuated to indicate that the bag is clamped to the spout, the following sequence of operations occurs:-
  • the swinging arm 27 is retained at rest in station 55 until the top microswitch on the suction box 12 again detects that the pick-up device has returned to its uppermost position carrying a fresh bag, whereupon the cycle of operations is automatically repeated, and so on until the stack of bags has been used-up or the machine is prematurely stopped by actuation of a suitable switch.
  • second suction tand and pick-up device may be mounted on the upright casing 1 parallel to the suction tank 5 and pick-up device 6.
  • This second pick-up device is arranged to pick-up bags from a stack contained on a trolley or magazine disposed beneath it and successively feed these bags to the transfer device 26 in alternate relation to the first pick-up device 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP78300434A 1978-09-29 1978-09-29 Améliorations des machines pour appliquer des sacs aux tuyaux de remplissage des machines de remplissage de sacs Withdrawn EP0009521A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP78300434A EP0009521A1 (fr) 1978-09-29 1978-09-29 Améliorations des machines pour appliquer des sacs aux tuyaux de remplissage des machines de remplissage de sacs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP78300434A EP0009521A1 (fr) 1978-09-29 1978-09-29 Améliorations des machines pour appliquer des sacs aux tuyaux de remplissage des machines de remplissage de sacs

Publications (1)

Publication Number Publication Date
EP0009521A1 true EP0009521A1 (fr) 1980-04-16

Family

ID=8186001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78300434A Withdrawn EP0009521A1 (fr) 1978-09-29 1978-09-29 Améliorations des machines pour appliquer des sacs aux tuyaux de remplissage des machines de remplissage de sacs

Country Status (1)

Country Link
EP (1) EP0009521A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424361A2 (fr) * 1988-12-14 1991-04-24 Decomatic S.A. Organes déprimogènes, notamment pour la fabrication de sacs en matière souple, notamment plastique
EP3181462B1 (fr) * 2015-12-17 2019-07-24 BEUMER Group GmbH & Co. KG Dispositif et procede de fixation de sacs d'aeration
CN112758419A (zh) * 2020-12-22 2021-05-07 丽水学院 一种自动装袋计算总价的称量设备及其使用方法
CN113479424A (zh) * 2021-07-29 2021-10-08 广东大宇智能设备有限公司 一种屏幕防护片包装的下吸塑中转下料装置以及投放设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281516A (en) * 1941-01-02 1942-04-28 Thomas M Royal Container handling apparatus
FR1571575A (fr) * 1967-06-09 1969-06-20
DE2642175A1 (de) * 1976-09-20 1978-03-23 Willi Naumann Vorrichtung zum spreitzen der oeffnung leerer folienbeutel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281516A (en) * 1941-01-02 1942-04-28 Thomas M Royal Container handling apparatus
FR1571575A (fr) * 1967-06-09 1969-06-20
DE2642175A1 (de) * 1976-09-20 1978-03-23 Willi Naumann Vorrichtung zum spreitzen der oeffnung leerer folienbeutel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424361A2 (fr) * 1988-12-14 1991-04-24 Decomatic S.A. Organes déprimogènes, notamment pour la fabrication de sacs en matière souple, notamment plastique
EP0424361A3 (en) * 1988-12-14 1991-09-18 Decomatic S.A. Fluid-flow restricting devices, in particular for manufacturing bags made of flexible material, in particular of plastic
EP3181462B1 (fr) * 2015-12-17 2019-07-24 BEUMER Group GmbH & Co. KG Dispositif et procede de fixation de sacs d'aeration
CN112758419A (zh) * 2020-12-22 2021-05-07 丽水学院 一种自动装袋计算总价的称量设备及其使用方法
CN113479424A (zh) * 2021-07-29 2021-10-08 广东大宇智能设备有限公司 一种屏幕防护片包装的下吸塑中转下料装置以及投放设备

Similar Documents

Publication Publication Date Title
US4211053A (en) Machines for applying bags or sacks to the discharge spouts of bag-filling machines
US4078358A (en) Bag-hanging and bag-filling machines adapted for synchronous and independent operation and method of using same
US4516762A (en) System for picking up and separating bags from a pack to be applied to automatic bag inserting apparatus
US4432186A (en) Automatic bag hanger
US4182094A (en) Bag opening and filling apparatus
CN202038481U (zh) 一种自动上袋装置
US3715858A (en) Valve bag placer
CN102556425A (zh) 一种自动上袋装置
CN107264878A (zh) 一种全自动包装设备
US7381026B1 (en) Mail traying apparatus
US4809965A (en) Sheet transfer device and method
JPH03176329A (ja) 卵移送用供給装置
US4141392A (en) Apparatus for automatic insertion of valved bags on bag-filling machines
US3287879A (en) Bag dispensing, transporting and positioning apparatus
US4537015A (en) Bag placer for a packaging machine
DK173644B1 (da) Apparat til stykvis aftagelse af stablede ventilsække og til påsætning af ventilsække på en ventilsæksfyldemaskines påfyldningsstuds eller -studse
US4305241A (en) Method and apparatus for suspending large sacks from the filling funnel of a sack-filling apparatus
EP0009521A1 (fr) Améliorations des machines pour appliquer des sacs aux tuyaux de remplissage des machines de remplissage de sacs
US4086746A (en) Packaging machines
US4941309A (en) Panel packaging system
US3952479A (en) Machine for sliding valved sacks onto the filling nipple of a filling machine
US3044231A (en) Apparatus for applying bale bags to a bale bag holder
US3225514A (en) Automatic bag-hanging and bag-filling apparatus
JPH0999903A (ja) 衣料品の袋詰め方法及び袋詰め装置
US5452567A (en) Dual bag filling apparatus

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19810223