EP0349226A1 - Procédé et appareil pour emballer des matériaux - Google Patents

Procédé et appareil pour emballer des matériaux Download PDF

Info

Publication number
EP0349226A1
EP0349226A1 EP89306428A EP89306428A EP0349226A1 EP 0349226 A1 EP0349226 A1 EP 0349226A1 EP 89306428 A EP89306428 A EP 89306428A EP 89306428 A EP89306428 A EP 89306428A EP 0349226 A1 EP0349226 A1 EP 0349226A1
Authority
EP
European Patent Office
Prior art keywords
chute
discharge opening
discharge
bag
hollow body
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Withdrawn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
EP89306428A
Other languages
German (de)
English (en)
Inventor
Robert Charles William Barclay
Nigel William Late Of Madges Meek
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.)
FOX FEEDS Ltd
Original Assignee
FOX FEEDS Ltd
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 FOX FEEDS Ltd filed Critical FOX FEEDS Ltd
Publication of EP0349226A1 publication Critical patent/EP0349226A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/224—Extrusion chambers
    • B30B11/225—Extrusion chambers with adjustable outlet opening
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/02—Expansible or contractible nozzles, funnels, or guides

Definitions

  • the present invention relates to a method and apparatus for packaging material, and also to a chute for enabling the material to be packaged.
  • fodder such as hay or green herbage
  • fodder such as hay or green herbage
  • the material is simply wrapped or bagged it is extremely bulky. Accordingly, the material is generally compacted before wrapping.
  • the compacted material is able to expand before and during packaging and this makes it difficult to control the volume of the completed package.
  • the present invention seeks to provide an improved method and apparatus for packaging material.
  • a method of packaging material comprising the steps of positioning a bag or other container with a closed end around a chute having a discharge opening such that said discharge opening is within the container, and forcing a quantity of material through said chute towards said discharge opening, wherein the material is arranged to expand the volume of said chute against a constraining force whereby the container is retained on the chute and the density of material within the chute determined.
  • the constraining force is a pressure applied to the chute to oppose its expansion.
  • This pressure may be preset and/or adjustable such that the density of the material within the chute can be chosen and is preferably arranged to obtain an even density of the material within the chute.
  • the method preferably further comprises the step of continuing to force the material through the chute until the filled container is pushed off the chute.
  • the chute is an elongate hollow body having the discharge opening at one end thereof.
  • the bag is arranged to take up a similar configuration to that of the chute such that expansion of the volume of the chute brings the outer peripheral surface of the chute into close contact with the periphery of the bag, with the closed end of the bag closing the discharge opening. Further expansion of the chute then acts to apply stretching forces to the container.
  • the step of forcing a quantity of material through the chute comprises pushing a block of material through the chute.
  • this block of material has a peripheral shape similar to that of the chute.
  • at least one dimension of the block is at least the same as, but preferably greater than, a corresponding dimension of the chute.
  • pushing the block through the chute is arranged to expand the volume of the chute.
  • the material is pushed into and through the chute by way of a ram.
  • the ram head has at least one dimension, transverse to its direction of movement through the chute, which is greater than the corresponding transverse dimension of the chute in its non-expanded state.
  • the constraining force may be applied by biasing means which are, for example, hydraulically or pneumatically operated.
  • biasing means which are, for example, hydraulically or pneumatically operated.
  • the resistance to expansion of the container also acts as a constraining force.
  • a method of packaging material comprises the steps of positioning a bag around an elongate hollow chute having a discharge opening at one end such that the periphery of the bag surrounds the peripheral surface of the chute and the closed end of the bag extends across and closes the discharge opening, pushing a block of material through the chute towards said discharge opening and simultaneously applying a constraining force to said chute, a dimension of the block of material transverse to the longitudinal extent of the chute being greater than a corresponding transverse dimension of the chute such that pushing the material through the chute causes the expansion of said dimension of the chute against the action of the constraining force, and continuing to push the material until the bag containing the block of material is pushed off the chute.
  • the material is pushed through the chute by way of a ram.
  • the constraining force is released.
  • apparatus for packaging material comprising a chute having a discharge opening arranged such that a bag or other container with a closed end can be positioned around the chute with the discharge opening within the container, and means for pushing material through the chute to said discharge opening, wherein the chute is constructed such that its volume can be expanded, and further comprising force applying means arranged to apply a constraining force to said chute.
  • the means for pushing material through the chute comprises a ram.
  • the force applying means may comprise biasing means which may be hydraulically or pneumatically operated.
  • said biasing means comprise one or more pneumatic cylinders.
  • the present invention also extends to a discharge chute comprising a hollow body in which a discharge opening is defined, wherein the hollow body is constructed from at least two wall members arranged to have overlapping regions and to be movable relative to one another such that relative movement of the wall members away from each other can increase the volume of said hollow body.
  • said chute is an elongate hollow body having a substantially rectangular cross-section.
  • the hollow body is formed by two elongate channel members which are substantially U-shaped in cross-section and which are arranged with their openings facing.
  • Each channel member has two spaced sides interconnected by a base member.
  • the channel members are arranged such that their base members form two spaced end walls of the hollow body.
  • each side of one channel member is in overlapping arrangement with a corresponding side of the other channel member, thereby defining a respective side wall of the chute which may be extended by moving the channel members away from each other.
  • each side wall of the hollow body is defined by a side plate interposed between a respective side of each channel member, part of each side of each channel member overlying said side plate. Movement of the channel members away from each other thus causes extension of the side wall by movement of the two sides of the channel members away from each other.
  • the overlapping wall regions of the hollow body are connected together by connecting means.
  • These connecting means can be arranged to control the volume increase of the chute.
  • the connecting means may comprise an inclined elongate slot in one of said overlapping wall regions and a corresponding projection protruding from the other of said wall regions and engaged in the slot for movement therealong.
  • FIG. 1A shows a discharge chute 2 for use in packaging materials, particularly straw like bulky materials such as hay and green herbage.
  • the chute 2 is an elongate hollow body which is mounted at the discharge of any appropriate plant or machine (not shown).
  • a mounting bracket 4 is provided to connect the chute 2 to the machine.
  • the end elevation of the chute illustrates that the chute is formed of two elongate, substantially U-shaped channel members 6. Each channel member 6 has two spaced sides 8 connected by a base 10, and the channel members 6 are arranged with their openings facing to give the chute 2 a substantially rectangular shaped cross-section.
  • the bases 10 define two spaced end walls of the chute 2.
  • each side wall of the chute is defined by a respective side 8 of each channel member 6 together with a side plate 12.
  • each side plate 12 is an elongate plate whose longitudinal edge regions are overlaid by corresponding longitudinal edge regions of the sides 8.
  • each side plate 12 is recessed to define an outwardly opening elongate channel 18 which extends longitudinally of each side of the chute 2.
  • each channel member 6 carries a bracket 20 to which the rod of a single acting pneumatic cylinder 22 is connected.
  • the body of each cylinder 22 is mounted on a bracket 24 depending from the mounting bracket 4.
  • Each side plate 12 is fixed to the support bracket 4.
  • each side plate 12 is connected to the sides 8 of each of the channel members 6.
  • two elongate slots 26, inclined to the longitudinal axis of the chute 2 are provided in each side 8 of each channel member 6 and are arranged to receive a respective location pin, as 28, which projects from the side plate 12.
  • the chute 2 is shown in Figures 1A and 1B in its normal non-expanded position at the beginning of a packaging operation.
  • a bag or other container with a closed end (not illustrated) is slipped over the chute 2.
  • the open bottom end 30 of the chute 2 defines a material discharge opening and the container is positioned to extend across the discharge opening 30 and close the opening.
  • the container is shaped and sized such that its peripheral surface surrounds the rectangular periphery of the chute over at least part of the length of the chute 2.
  • the bag may be placed in position manually or by automatic means, and the open end of the bag, which encircles the chute at some distance above the discharge opening 30, is generally initially held in position.
  • the container is a bag made of plastics material.
  • the material to be packaged is bulky it is preferably compacted and is then presented in a block to the open top of the chute 2.
  • the block has a similar rectangular cross-sectional shape to that of the chute but its dimensions are at least equal to, but preferably greater than, the corresponding dimensions of the chute transversely of the longitudinal extent of the chute.
  • the block is presented to the upper opening of the chute by appropriate means (not shown) and is then forced into and longitudinally of the chute 2 by way of a ram (not shown).
  • the cylinders 22 are under pressure and thus urge the two channel members 6 of the chute towards each other.
  • the material is able to move the channel members 6 away from each other so that they move relative to the side plates 12.
  • the movement of the channel members 6 is controlled by the downwardly inclined slots 26 and the projections 28, and so the channel members 6 move outwardly and downwardly to the fully expanded position of the chute shown in Figure 2.
  • the pressure applied by the cylinders 22, against which the expansion of the chute takes place, is adjusted to ensure that the material within the chute is maintained at an even density.
  • the bag in which the material is to be packaged is around the chute 2 and accordingly it is stretched by the expansion of the chute.
  • the stretching of the material of the bag causes it to be held in position on the chute even though the ram continues to force material through the chute to the discharge opening.
  • the resistance to stretching of the bag also acts as a constraining force resisting the expansion of the chute.
  • the slots 26 and their corresponding projections 28 prevent expansion of the chute beyond the fully expanded position of Figure 2 and so the continued application of pressure to the material, and the fact that the discharge opening is closed by the bag causes the volume of the material to be reduced and thereby increases the force applied. This process continues until the force applied to the bag and to the increasingly compressed material is sufficient to push the bag off the chute. It will be appreciated that both the material and the bag are simultaneously pushed out of and off the chute such that the material is contained within the bag and constrained thereby.
  • the ram head pushing the material into the chute 2 will eventually follow the material into the chute.
  • This ram head also has a transverse dimension which is oversize as compared with the non-expanded dimension of the chute and generally the transverse dimension of the ram head is larger than that of a block of material. Accordingly, to enable the ram head to enter the chute easily the pressure applied by the cylinders 22 is released as the ram enters the chute. Furthermore, as the ram head is returned out of the chute to its initial position, the pressure to the cylinders 22 is recharged. The rods of the cylinders 22 then act to push the channel members 6 towards one another, and, as there is no longer material in the chute to oppose this action, the chute is returned to its initial non-expanded position.
  • FIG. 3 shows a schematic of the hydraulic circuit for the single acting cylinders 22.
  • This circuit comprises a pump 32 for pumping a liquid, for example, pressurised oil.
  • a diverter valve 34 is set in its open position illustrated, and the system is charged using the pump 32.
  • the system pressure is set by way of a pressure relief valve 38.
  • the diverter valve 34 is then closed to maintain the system pressure.
  • pressure is applied to the cylinders 22 to try to close them against the system pressure and this maintains the density of the material. Any excess oil is absorbed by an accumulator 36.
  • means are provided to enable the system pressure to be dumped as the ram head enters the chute or the pressure in the chute becomes too great.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP89306428A 1988-06-29 1989-06-26 Procédé et appareil pour emballer des matériaux Withdrawn EP0349226A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8815511 1988-06-29
GB8815511A GB2222565B (en) 1988-06-29 1988-06-29 Method and apparatus for packaging material

Publications (1)

Publication Number Publication Date
EP0349226A1 true EP0349226A1 (fr) 1990-01-03

Family

ID=10639599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89306428A Withdrawn EP0349226A1 (fr) 1988-06-29 1989-06-26 Procédé et appareil pour emballer des matériaux

Country Status (2)

Country Link
EP (1) EP0349226A1 (fr)
GB (1) GB2222565B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2256043A1 (fr) * 2009-05-28 2010-12-01 Seelen A/S Tuyau de sortie en quatre morceaux
US20110011035A1 (en) * 2007-12-21 2011-01-20 Jan Praestholm Apparatus and method for packaging articles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865157A (en) * 1955-04-04 1958-12-23 Talsma William Packaging fixture
US3011297A (en) * 1957-11-27 1961-12-05 Continental Can Co Poultry stuffing horn
FR2236730A1 (fr) * 1973-07-11 1975-02-07 Grace W R Ltd
FR2375096A1 (fr) * 1976-12-27 1978-07-21 Anvar Procede pour la mise en boite de produits en pate molle

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB374396A (en) * 1932-02-18 1932-06-09 Reginald Roland Seddon A device for use in placing filled bags of material into outer containers
GB397791A (en) * 1932-03-19 1933-08-31 Signaux Entr Electriques Improvements in or relating to packing machines
GB627218A (en) * 1946-04-23 1949-08-03 Internat Cellu Cotton Products Improvements in a method and apparatus for packaging a pad of superposed cellulosic tissues
GB773979A (en) * 1954-01-15 1957-05-01 St Regis Paper Co Method and apparatus for packing filled bags within bales
US3290841A (en) * 1965-09-15 1966-12-13 Michael A Sartore Apparatus for netting meat and meat products
US3503180A (en) * 1967-04-28 1970-03-31 Union Carbide Corp Packaging apparatus
US3641734A (en) * 1970-05-15 1972-02-15 Francis B Fishburne Apparatus for packing loose compressible material in rectangular containers
NL144207B (nl) * 1971-05-17 1974-12-16 Stork Amsterdam Inrichting voor het in een buisvormige verpakking brengen van geslacht gevogelte.
BE787857A (fr) * 1971-08-23 1973-02-22 Union Carbide Corp Appareil a ensacher des produits alimentaires
US3792564A (en) * 1972-12-20 1974-02-19 Certainteed Prod Corp Wrapping compressible material
US4241562A (en) * 1978-05-06 1980-12-30 Alfons Meyer Method and apparatus for automatic filling of bags
US4242854A (en) * 1979-07-23 1981-01-06 Kimberly-Clark Corporation Automatic bag loader

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865157A (en) * 1955-04-04 1958-12-23 Talsma William Packaging fixture
US3011297A (en) * 1957-11-27 1961-12-05 Continental Can Co Poultry stuffing horn
FR2236730A1 (fr) * 1973-07-11 1975-02-07 Grace W R Ltd
FR2375096A1 (fr) * 1976-12-27 1978-07-21 Anvar Procede pour la mise en boite de produits en pate molle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110011035A1 (en) * 2007-12-21 2011-01-20 Jan Praestholm Apparatus and method for packaging articles
US8567163B2 (en) * 2007-12-21 2013-10-29 Rockwool International A/S Method for packaging articles
EP2256043A1 (fr) * 2009-05-28 2010-12-01 Seelen A/S Tuyau de sortie en quatre morceaux

Also Published As

Publication number Publication date
GB2222565A (en) 1990-03-14
GB8815511D0 (en) 1988-08-03
GB2222565B (en) 1992-04-08

Similar Documents

Publication Publication Date Title
US3694992A (en) Packaging compressible material
US5170609A (en) Fluidic deflator means and method for article packaging
US7458194B2 (en) Apparatus for producing a self-standing bag for bales of compressed loose material and a method thereof
US4398383A (en) Apparatus for packaging product filled sealed bags into cases
US5203261A (en) Can baling machine and method
US4804550A (en) Method for packaging ground coffee
EP0562312A2 (fr) Procédé et machine horizontale pour la mise en balles
US5259172A (en) Packaging machine and method
US3735561A (en) Carton packing device
GB2125760A (en) Apparatus for packaging resiliently compressible articles
SU1279524A3 (ru) Установка дл упаковки в пленку бесподдонного штабел мешков
US3824758A (en) Method and apparatus for packing compressible material such as tobacco
EP0536781B1 (fr) Appareil et méthode à emballer
US5398487A (en) Bale bagging machine
KR19980703616A (ko) 루즈 물질 베일링 방법 및 장치
US5046304A (en) Apparatus and method for bagging fragile leafy vegetables
EP0349226A1 (fr) Procédé et appareil pour emballer des matériaux
US3641734A (en) Apparatus for packing loose compressible material in rectangular containers
US3811242A (en) Method and apparatus for compressing foam blocks for storage and/or shipment
US4407107A (en) Horizontal baling apparatus and method
CA1296988C (fr) Methode et appareil permettant de faconner, de remplir, de sceller des sacs etde les deposer dans des cartons
CA2458713C (fr) Dispositif et methode d'obtention d'une balle de marchandises en vrac
US5822957A (en) Equipment for sheathing hay bales in plastic
US5463944A (en) Rotatable bale release mechanism for a baler machine and method of baling
JPS5813409B2 (ja) 繊維塊の荷造り装置

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

Kind code of ref document: A1

Designated state(s): AT BE CH ES FR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900702

17Q First examination report despatched

Effective date: 19910708

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: 19921124