US3867876A - Stacking device - Google Patents

Stacking device Download PDF

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Publication number
US3867876A
US3867876A US289620A US28962072A US3867876A US 3867876 A US3867876 A US 3867876A US 289620 A US289620 A US 289620A US 28962072 A US28962072 A US 28962072A US 3867876 A US3867876 A US 3867876A
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United States
Prior art keywords
belt
bag stack
control means
bag
stack
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Expired - Lifetime
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US289620A
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English (en)
Inventor
De Gent Edouard Louis Van
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Printex
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Printex
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H33/00—Forming counted batches in delivery pile or stream of articles
    • B65H33/16—Forming counted batches in delivery pile or stream of articles by depositing articles in batches on moving supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/28—Bands, chains, or like moving receivers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles

Definitions

  • ABSTRACT A device for stacking bags at the outlet of a bagforming machine, comprising a conveying belt, control means imparting an intermittent movement thereto, a stop extending cross-wise to the belt movement direction and control means for imparting an alternating motion thereto to release a bag stack for conveying by said belt, and means bearing on said bag stack during forming thereof with a contacting part moving to- I gether with said bag stack.
  • This invention has for object a device to be arranged at the outlet of a machine, particularly a machine for shaping plastic bags, said device being so designed as to allow on the one hand the formation of a bag stack and on the other hand the removal of the formed bag stack, said device comprising an endless conveying belt on which the bags are stacked, control means to impart to said belt an intermittent movement through either a bag-counting apparatus or an apparatus measuring the bag stack height, a stop extending cross-wise to the belt movement direction and against which the bag stack is formed, and control means synchronized with the belt control means for imparting to the stop an alternating motion so as to release the formed bag stack and allow the removal thereof by said belt.
  • the invention has for object to obviate said drawback and to provide a stacking device which allows whatever be the production rate of the bag-forming machine, to retain the bags perfectly arrayed in stacks down to the outlet of said device where said stacks may be released manually by a single operator or taken over mechanically to be conveyed to some other place.
  • said device comprises means so arranged as to bear on the upper side of the bag stack by the moment where said stack is formed, control means being provided to impart to said means an alternating motion to move same towards and away from said upper side, said bearing means being so arranged that the part thereof engaging the bag stack upper side moves with the same linear speed as the endless belt and along the same direction as said belt.
  • second control means are provided to positively drive the bearing means with the same linear speed as the endless belt and along the same direction as said belt.
  • control means for the stop and the control means for moving said bearing means towards or away from the bag upper side are synchronized and comprise a single driving member, said control rneans being so arranged that the bearing means bear on the bag stack upper side by the moment where the stop retaining said stack has been completely separated from the endless belt and has released the bag stack.
  • the endless belt control means and the bearing means second control means comprise a single driving member for driving the belt and said means along the same direction and with the same linear speed.
  • FIG. 1 is an elevation view with parts broken away of the device according to the invention.
  • FIG. 2 is a diagrammatic plain view of the device shown in FIG. 1.
  • FIG. 3 is an elevation view with parts broken away of another embodiment ofthe device shown in FIG. 1.
  • the device according to the invention and shown in FIGS. I and 2 is to be arranged at the outlet of a machine for forming plastic bags (not shown) so as to allow the formation of a bag stack and the removal of the formed bag stack.
  • the device comprises an endless belt on which the bags are stacked, an adjustableposition stop 2 against which the bags come to stop by the stacking thereof as well as a fixed stop 3, the spacing between both said stops being set according to the bag dimensions in such a way that said spacing be substantially equal to that bag dimension in parallel relationship with the lengthwise axis of belt 1.
  • the movernents of belt 1 are intermittent and they are controlled in a way known per se, from a motor with reduction gearing 4 and through a bag-counting apparatus (not shown), said apparatus also acting on the control means for the stop 2 which are so synchronized with the control means for belt 1 as to impart thereto an alternating motion to cause the stop 2 to move away from the belt to leave a passage between said stop and belt 1 so as to allow the removal of a formed bag stack, and to return afterwards to its position against said belt, the belt movement only occuring when the stop 2 has completely released the passage for the bag stack.
  • the de' vice control means are so arranged as to act upon the bag-forming machine control means to stop said machine when the belt is driven.
  • the device comprises means 5 arranged to bear on the stack upper side when said stack is formed and before belt 1 starts to move, control means 6 being provided to impart an alternating motion to said bearing means so as to bring them towards and away from the bag stack, said bags being so arranged that the area thereof engaging the upper'side of the stack of bags 7 (shown in dotted lines in FIG. 1) moves with the same linear speed as the belt 1 and along the same direction as said belt.
  • the means 5 advantageously comprise a cylinder 8 in parallel relationship with the belt 1 and with the axis thereof at right angle to the movement direction of said belt, said cylinder 8 being mounted on a shaft 9 in such a way that said cylinder rotates freely on said shaft.
  • the control means 10 for imparting to the stop 2 said alternating motion and the control means 6 for the alternating motion of cylinder 8 comprise for bringing same away from and nearer to the belt 1, in opposite directions, in such a way that said cylinder bears on the stack when the stop 2 has released a passage thereon, a single driving member 12.
  • the stop 2 is arranged on two uprights l3 and 13' while the cylinder is arranged on two up rights 14, 14', said uprights I3, l3, l4, 14' being in parallel relationship and so guided as to be simultaneously movable by pairs (13, 13) and (l4, 14) along the lengthwise axis thereof which lies substantially at right angle to that plane going through side 15 of belt 1, each one of said uprighs being provided with a rack 16, the racks 16 of the upright pairs (13, 14) and (13', 14) facing one another and a pinion l7 meshing with both racks 16 of each one of said last upright pairs located on either side of belt 1 so as to move simultaneously the uprights of each pair (13, 14) and (13', 14') along opposite directions, both pinions 17 being made fast to a single shaft 18 which is rotated by means of a rack 19, which meshes with a gear wheel 20 integral with shafts 18, said driving member 12 being advantageously operated by a jack 21 which bears on the piston rod thereof,
  • Each pair of said uprights (13, 14) (13', 14') is arranged on a frame 22 which is so movable as to adjust the position of stop 2 according to the bag dimensions, said frames 22 being joined together so as to move simultaneously and in parallel relationship with the movement direction of belt 1 under the action of pinions 23 driven by a handwheel 24 and which mesh with two racks 25 which are attached to the device frame 24.
  • Cylinder 8 might under the action of the bag stack on which it bears, be rotated by friction about the axis thereof with the same linear speed as the belt 1 and thus retain the bag stack perfectly formed and this due to said stack being clamped between the cylinder 8 and belt 1.
  • cylinder 8 is so arranged as to be positively driven from the power cylinder 27 and by motor 4 and chain 28, with the same linear speed and along the same direction as belt I.
  • Said positive driving of cylinder 8 is performed by means of two belts 29 arranged on either side of endless belt 1 in parallel relationship therewith, cooperating with cylinder 27 and so arranged as to have the portions 30 thereof extending on the path of cylinder 8 when said cylinder moves to bear on the bag stack, said cylinder 8 thus being driven by friction by the belts as soon as endless belt 1 moves to discharge a bag stack.
  • Return pulleys 31 are provided for the belts 29 on the frames 22, said belts being provided as well as endless belt 1, with a spring tensioning device (not shown).
  • the control means for jack 2] attached to one frame 22, and the control means for motor 4 are so arranged that said motor is energized to drive belt 1, belts 29 and cylinder 8 when said jack has brought said cylinder in engagement with the bag stack and belts 29 and when stop 2 has released belt 1.
  • the stacking device further comprises advantageously a blowing ramp 32 which is arranged in parallel relationship and crosswise to the belt 1 between the outlet of the bag-forming machine and stop 2, said ramp supplied with lowpressure air being so directed as to rapidly bring the bags down on belt 1 or on the bag stack being formed and thus to prevent with a high production rate of the machine, the bags floating and colliding with the following bags before laying said bags down on the stack.
  • the device according to the invention and shown in FIG. 3 is so designed as to allow the formation ofa bag stack and the stocking on endless belt 1, of a determined number of formed stacks.
  • auxiliary cylinders 8 are associated to cylinder 8, the total number of cylinders being equal to the number less one of bag stacks to be stocked on belt 1 so as to release that bag stack fartest away from cylinder 8 and to cooperate with each formed stack in the same way as the cylinder 8 acting upon the newlyformed stack, said cylinders 8 and 8 being parallel, lying at the same level and being regularly spaced from one another in such a way that each one of said cylinders might bear on the upper side of the corresponding stack of bags 7 substantially in the same location on said side, means 33 and 34 being provided to operate the cylinders 8' in sucha way that the movements thereof be identical and simultaneous with the movements of cylinder 8.
  • each cylinder 8 is mounted on two parallel uprights l3, 13' similar to those uprights which support cylinder 8, said uprights 13, 13 for each cylinder 8 being arranged on a movable frame 35 which is controlled so as to move in parallel relationship with the lengthwise axis of belt 1, by a pinion 36 which is controlled by a hand wheel 37 and which meshes with the rack 25 attached to the device frame 26.
  • Said means 33 are provided to rotate about the shaft 9' thereof the cylinders 8 with the same speed as cylinder 8 and said means 33 comprise on the one hand a belt 38 cooperating with each one of cylinders 8 and 8 and driven by cylinder 8 and on the other hand, a resilient member 39 insuring tensioning of said belt 38 whatever he the spacing between cylinders 8 and 8.
  • Means 34 are provided to control the upwards and downwards movement of cylinders 8 from gear wheel 20 which controls cylinder 8 and said means comprise on the one hand a chain 40 cooperating with each one of pinions 41 provided for driving at the same speed, those uprights l3, 13 which support cylinders 8 and on the other hand, a resilient member 42 insuring tensioning of chain 40 whatever be the spacing between cylinders 8 and 8.
  • a device to be arranged at the outlet of a bagshaping machine for allowing the formation of a bag stack and the removal of the formed bag stack comprising and endless conveying belt on which the bags are stacked, belt control means to impart to said belt an intermittent movement through, a bag stack measuring device, a stop extending cross-wise to the belt'movement direction and against which the bag stack is formed, and stop control means synchronized with the belt control means for imparting to the stop an alternating motion so as to release the formed bag stack and allow the removal thereof by said belt, bearing means so arranged as to bear on the upper side of the bag stack when said stack is formed, and when said stop control means releases the formed bag stack, bearing control means being provided to impart to said bearing means an alternating motion to move same towards and away from said upper side, said bearing means being so arranged that the part thereof engaging the bag stack upper side moves with the same linear speed as the endless belt and along the same direction as said belt to prevent spreading of the bag stack on said belt.
  • said bearing means comprise at least one cylinder in parallel relationship with the belt and with the axis thereof at right angle to the endles belt moving direction, said cylinder being so mounted on a shaft as to rotate freely about the axis thereof.
  • Device as claimed in claim 1 which comprises a blowing ramp arranged in parallel relationship and cross-wise to the endless conveying belt between the bag-forming machine outlet and said stop, said ramp being so directed as to bring the bags down on the conveying belt and on a bag stack being formed.
  • a device to be arranged at the outlet of a bagshaping machine for allowing the formation of a bag stack and the removal of the formed bag stack comprising: an endless conveying belt on which the bags are stacked; belt control means to impart to said belt an intermittent movement through; a bag stack measuring device a stop extending cross-wise to the belt movement direction and against which the bag stack is formed; stop control means synchronized with the belt control means for imparting to the stop an alternating motion so as to release the formed bag stack and allow the removal thereof by said belt; bearing means so arranged as to bear on the upper side of the bag stack when said stack is formed and when said stop control means releases the formed bag stack; bearing control means provided to impart to said bearing means an alternating motion to move same towards and away from said upper side, said bearing means being so arranged that the part thereof engaging the bag stack upper side moves with the same linear speed as the endless belt and along the same direction as said belt to prevent spreading of the bag stack on said belt, said stop control means and said bearing control means being synchronized and comprising a
  • a device to be arranged at the outlet of a bagshaping machine for allowing the formation of a bag stack and the removal of the formed bag stack comprising: an endless conveying belt on which the bags are stacked, said belt being looped over a driven cylinder; belt control means to impart to said belt an intermittent movement through a bag stack measuring device; a stop extending cross-wise to the belt movement direction and against which the bag stack is formed; stop control'means synchronized with the belt control means for imparting to the stop an alternating motion so as to release the formed bag stack and allow the removal thereof by said belt; bearing means including a freely rotating cylinder disposed parallel to and transverse to said belt and arranged to bear on the upper side of the bag stack when said stack is formed and when said stop control means releases the formed bag stack; bearing control means being provided to impart to said bearing means an alternating motion to move same towards and away from said upper side; second control means to positively drive the bearing means so that the freely rotating cylinder engaging the bag stack upper side moves with the same linear speed as the endless convey
  • a device to be arranged at the outlet of a bagshaping machine for allowing the formation of a bag stack and the removal of the formed bag stack comprising: an endless conveying belt onwhich the bags are stacked; belt control means to impart to said belt an intermittent movement through a bag stack measuring device; a stop supported by two parallel first uprights and extending cross-wise to the belt movement direction and against which the bag stack is formed; guides for guiding the uprights for movement along paths coinciding with their axes; a facing rack carried by each of said guides; stop control means synchronized with the belt control means: for imparting to the stop an alternating motion so as to release the formed bag stack and allow ,the removal thereof by said belt; bearing means including two parallel second uprights supporting a freely rotating cylinder which is disposed parallel to and transverse to said belt and arranged to bear on the upper side of the bag stack when said stack is formed and when said stop control means releases the formed bag stack, said bearing means further including guides for guiding the uprights to move along paths coinciding with their axe
  • each said upright pairs is arranged on a frame which is movable so as to allow adjusting the stop position according to the bag size, said frames being joined together so as to move simultaneously in parallel relationship with the endless belt movement direction under the action of at least one pinion meshing with a rack attached to the device frame.
  • a device to be arranged at the outlet of a bagshaping machine for allowing the formation of a bag stack and the removal of the formed bag stack comprising: an endless conveying belt on which the bags are stacked, control means to impart to said belt an intermittent movement through a bag stack measuring device; a stop extending cross-wise to the belt movement direction and against which the bag stack is formed; stop control means synchronized with the belt control means for imparting to the stop an alternating motion so as to release the formed bag stack and allow the removal thereof by said belt; bearing means including a freely rotating cylinder disposed parallel to and transverse to said belt and arranged to bear on the upper side of the bag stack when said stack is formed, when said stop control means releases the formed bag stacks; bearing control means being provided to impart to said bearing means an alternating motion to move same towards and away from said upper side; second control means to positively drive the bearing means so that the freely rotating cylinder engaging the bag stack upper side moves with the same linear speed as the endless conveying belt and in the same direction as said endless conveying belt to prevent
  • each one of the auxiliary cylinders associated with said freely-rotating cylinder is mounted on two parallel uprights similar to the uprights supporting said freely rotating cylinder, the uprights of each said auxiliary cylinders being arranged on a movable frame so as to allow adjusting the cylinder position according to the bag size, each frame being controlled for a movement in parallel relationship with the conveying belt movement, by a pinion meshing with a rack attached to the device frame.
  • a device to be arranged at the outlet of a bagshaping machine for allowing the formation of a bag stack and the removal of the formed bag stack comprising a conveyor on which the bags are stacked, conveyor control means to impart to said conveyor an intermittent movement through a bag stack measuring device, a stop extending cross-wise to the conveyor movement direction and against which the bag stack is formed, and stop control means synchronized with the conveyor control means for imparting to the stop an alternating motion so as to release the formed bag stack and allow the removal thereof by said conveyor, bearing measn so arranged as to bear on the upper side of the bag stack when said stack is formed and when said stop control means releases the formed bag stack, bearing control means being provided to impart to said bearing means an alternating motion to move said bearing means towards and away from said upper side of said bag stack, said bearing means being so arranged that the part thereof engaging the upper side of the bag stack moves with the same speed as the conveyor and along the same direction of movement as the conveyor to prevent spreading of the bag stack on the conveyor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Making Paper Articles (AREA)
  • Pile Receivers (AREA)
US289620A 1971-09-15 1972-09-15 Stacking device Expired - Lifetime US3867876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE772622A BE772622A (fr) 1971-09-15 1971-09-15 Dispositif d'empilage,

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US3867876A true US3867876A (en) 1975-02-25

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US289620A Expired - Lifetime US3867876A (en) 1971-09-15 1972-09-15 Stacking device

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US (1) US3867876A (de)
BE (1) BE772622A (de)
DE (1) DE2245515C3 (de)
FR (1) FR2153994A5 (de)
GB (1) GB1395197A (de)
IT (1) IT967546B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043458A (en) * 1976-03-02 1977-08-23 Gloucester Engineering Co., Inc. Stacker
US4297066A (en) * 1978-08-12 1981-10-27 E. C. H. Will (Gmbh & Co.) Paper sheet layer forming and transferring arrangement
US6527501B2 (en) * 1998-10-29 2003-03-04 E.C.H. Will Gmbh Apparatus for accumulating and transporting stacks of paper sheets and the like
EP1486441A1 (de) * 2003-06-11 2004-12-15 Gämmerler AG Verfahren und Vorrichtung zum Auflegen von Deckblättern
CN106335811A (zh) * 2016-08-30 2017-01-18 孔磊 收纸装置及其收纸方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302477C3 (de) * 1973-01-19 1981-03-26 Stiegler GmbH Maschinenfabrik, 73635 Rudersberg Vorrichtung zum Fördern eines aus folienförmigen Abschnitten gestapelten Stapels
DE2708853A1 (de) * 1977-03-01 1978-09-07 Windmoeller & Hoelscher Vorrichtung zum durchtrennen und gleichzeitigem verblocken eines aus folienfoermigen abschnitten gebildeten stapels
DE2723162A1 (de) * 1977-05-23 1978-11-30 Mohr Vorrichtung zur uebergabe eines teilstapels bedruckter boegen von einem gesamtstapel in eine ruettelstation
DE2753668A1 (de) * 1977-12-02 1979-06-07 Heinrich Baumann Fa Vorrichtung zur bildung von verarbeitungsfaehigen teilstapeln aus folienbogen, insbesondere papierbogen
DE2940399C2 (de) * 1979-10-05 1985-10-03 Hans 5216 Niederkassel Lehmacher Vorrichtung zum Stapeln von Kunststoffbeuteln
DE3043035C2 (de) * 1980-11-14 1983-11-10 Stiegler, Karl Heinz, 7000 Stuttgart Maschine zum Herstellen von Kunststoffbeuteln mit einer Stapelstation
GB8325156D0 (en) * 1983-09-20 1983-10-19 Alpine Plastic Machinery Ltd Machines for forming bags from webs
DE3540203C2 (de) * 1985-11-13 1993-12-09 Will E C H Gmbh & Co Vorrichtung zum Fördern von Papierstapeln
DE19821918B4 (de) * 1998-05-15 2005-11-10 Gämmerler AG Verfahren zum Fördern von Produkten und Handhabungseinheit zur Durchführung des Verfahrens
CN113998183B (zh) * 2021-11-24 2022-12-13 威海恒瑞新型包装材料有限公司 一种包装袋自动收料装置

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US1655804A (en) * 1923-10-02 1928-01-10 R Hoe And Co Inc Delivery mechanism
US2761361A (en) * 1952-06-10 1956-09-04 Armstrong Cork Co Counting device
US3585709A (en) * 1967-08-04 1971-06-22 Steinmueller Gmbh L & C Method of making tubular walls from finned pipes
US3587410A (en) * 1968-06-26 1971-06-28 Bernard Dechanciaux Apparatus for stacking bags
US3596575A (en) * 1968-12-24 1971-08-03 Windmoeller & Hoelscher Bundling apparatus for flattened tube sections made by a tube-making machine

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DE193486C (de) *
US2414337A (en) * 1945-03-06 1947-01-14 S & S Corrugated Paper Mach Take-off table
US2971416A (en) * 1954-12-31 1961-02-14 Lectromatic Devices Inc Measuring-type strip-feeding machine
US3580142A (en) * 1969-05-05 1971-05-25 Fmc Corp Bag stack accumulating conveyor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1655804A (en) * 1923-10-02 1928-01-10 R Hoe And Co Inc Delivery mechanism
US2761361A (en) * 1952-06-10 1956-09-04 Armstrong Cork Co Counting device
US3585709A (en) * 1967-08-04 1971-06-22 Steinmueller Gmbh L & C Method of making tubular walls from finned pipes
US3587410A (en) * 1968-06-26 1971-06-28 Bernard Dechanciaux Apparatus for stacking bags
US3596575A (en) * 1968-12-24 1971-08-03 Windmoeller & Hoelscher Bundling apparatus for flattened tube sections made by a tube-making machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043458A (en) * 1976-03-02 1977-08-23 Gloucester Engineering Co., Inc. Stacker
US4297066A (en) * 1978-08-12 1981-10-27 E. C. H. Will (Gmbh & Co.) Paper sheet layer forming and transferring arrangement
US6527501B2 (en) * 1998-10-29 2003-03-04 E.C.H. Will Gmbh Apparatus for accumulating and transporting stacks of paper sheets and the like
EP1486441A1 (de) * 2003-06-11 2004-12-15 Gämmerler AG Verfahren und Vorrichtung zum Auflegen von Deckblättern
CN106335811A (zh) * 2016-08-30 2017-01-18 孔磊 收纸装置及其收纸方法
CN106335811B (zh) * 2016-08-30 2018-07-31 常州汉威信科技股份有限公司 收纸装置及其收纸方法

Also Published As

Publication number Publication date
DE2245515C3 (de) 1982-07-08
FR2153994A5 (de) 1973-05-04
DE2245515A1 (de) 1973-03-22
GB1395197A (en) 1975-05-21
DE2245515B2 (de) 1980-07-03
BE772622A (fr) 1972-01-17
IT967546B (it) 1974-03-11

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