EP1175996A2 - Machine de façonnage de cartons d'un matériau thermosoudable - Google Patents

Machine de façonnage de cartons d'un matériau thermosoudable Download PDF

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Publication number
EP1175996A2
EP1175996A2 EP01119324A EP01119324A EP1175996A2 EP 1175996 A2 EP1175996 A2 EP 1175996A2 EP 01119324 A EP01119324 A EP 01119324A EP 01119324 A EP01119324 A EP 01119324A EP 1175996 A2 EP1175996 A2 EP 1175996A2
Authority
EP
European Patent Office
Prior art keywords
box
former
machine
boxes
previous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01119324A
Other languages
German (de)
English (en)
Other versions
EP1175996B1 (fr
EP1175996A3 (fr
Inventor
Daniel Emilio Sanchez Duran
Manuel Duran Fuentes
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.)
Ribawood SA
Original Assignee
Ribawood SA
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 Ribawood SA filed Critical Ribawood SA
Publication of EP1175996A2 publication Critical patent/EP1175996A2/fr
Publication of EP1175996A3 publication Critical patent/EP1175996A3/fr
Application granted granted Critical
Publication of EP1175996B1 publication Critical patent/EP1175996B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/59—Shaping sheet material under pressure
    • B31B50/592—Shaping sheet material under pressure using punches or dies
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • B31B50/46—Folding sheets, blanks or webs by plungers moving through folding dies and interconnecting side walls
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping

Definitions

  • This invention refers, as its title indicates, to a machine for shaping boxes from sheets or plates of heat-weldable material, whose configuration exactly corresponds to the development of the box or, in other words, with the unfolded box.
  • This machine includes means for supply of the unfolded boxes, means of transport picking up the unfolded boxes from the supply unit, then locating them in a heating unit; means for immobilizing the unfolded boxes in the heating unit, a box former, a treader-former which introduces the unfolded box in the box former, hence obtaining the folding of its sides with respect to the base; means of pressing which determines the heat-welding of the opposite ends of the adjoining sides of the shaped box, previously heated in the heating unit and means to remove the shaped boxes by the machine.
  • EP-A-0 436 236 discloses a box forming machine substantially in accordance with the preamble of claim 1 of this patent.
  • US-A-4 936 815 and GB-A-900 118 disclose further prior art machines.
  • the invention relates to a machine in accordance with claim 1 of this patent. Preferred embodiments are defined in dependent claims.
  • the means of supplying the unfolded boxes can consist of a lifting platform, over which the unfolded boxes are piled; above said means of supply, the mentioned transport means are arranged, consisting of a horizontal motorized displacement carriage over which is assembled a pneumatic cylinder which vertically displaces an arm equipped with a pneumatically activated suction pad to hold the unfolded boxes from the supplier to the heating unit.
  • This heating unit can include coplanary plates, over which the transporter places the unfolded boxes, the latter being supported on the plates by means of which will be their sides, such that the box base arranged in said unit does not lean over any surface.
  • Some displaceable heaters can be arranged in this heating unit which heat the opposite ends of the adjoining sides of the boxes by means of the projection over the same of hot air; this heaters are preferably equipped with nozzles defining a flat square-shaped outlet, through which the hot air emerges, permitting that each one of them simultaneous heat the opposite ends of two of the adjoining sides of the box to be shaped.
  • This heating will later allow the heat-welding of the ends of the adjoining sides of the box to be performed as it is made of heat-weldable material.
  • the invention foresees that the machine can include means of immobilization consisting of some treaders, activated by pneumatic cylinders assembled over an upper fixed bridge and which vertically pressed the sides of the unfolded box against the coplanary plates included in the heating unit.
  • the box former includes some side walls having a gap between them of dimensions slightly greater than the size of the box to be shaped, said shaper preferably being arranged at the lower area of the heating unit.
  • the walls of the box former have in their lower part some windows through which emerge, towards the central gap, some concealable stops preferably defining, as a whole, a coplanary surface, perpendicular to the walls of the shaper.
  • These concealable stops are preferably installed with the possibility of rotation over the back sides of the walls of the box former and those corresponding to each one of the walls are activated by a same pneumatic cylinder determining the arrangement in a hidden or protruding position with respect to the corresponding walls.
  • the side walls of the box former are preferably extended at their upper end in some diverging ramps destined to collaborate in the folding of the sides of the box with respect to its base.
  • the treader-former preferably includes two side walls joined together by a lower base of less length than the former and by two upper crossbars, fixed at their ends, the set defining the treader-former a width equal to the inside width of the box to be shaped.
  • This treader-former includes between the side walls two bending wedges, arranged perpendicularly to the former and fixed to them with the possibility of rotation; said bending wedges are preferably activated by two pneumatic cylinders arranged inside the treader-former and which arranges them in an open or closed position.
  • the bending wedges preferably have at their free end two chamfers set against each other which define a right-angled rim.
  • This treader-former is preferably fixed to a pneumatic cylinder obliging it to describe alternative vertical motions, passing from the upper area of the heating unit to the interior of the box former and viceversa; the base of the treader-former is aligned vertically with the inner gap of the box former, such that on vertically descending, the base of the treader-former presses the base of the box, still unfolded, and introduces it in the box former, the ramps defined in its sides, determining the folding of the box, until it reaches a position perpendicular to its base, said perpendicular position being achieved when the box is totally introduced inside the box former.
  • This limit position is determined by the contact of the base of the box against the concealable stops which during this operation are in a protruding position.
  • the bending wedges are open and press to of the lower edges of the box against the concealable stops arranged on two of the opposite sides of the box former, obliging the sides of the box to define a right angle with the base.
  • the invention preferably contemplates that the machine includes in the corners of the former means of pressing, consisting of tightening clamps which, on gripping the opposite ends of the opposite sides of the adjoining sides of the shaped box, determine their heat-welding thanks to the heating previously made.
  • the gripping clamps are preferably provided with gripping devices having a length equal or slightly greater than the height of the boxes to be shaped, said gripping devices being able to have flat profiles or profiles with alternating recesses and salients.
  • the invention considers the possibility that the box former have an internal conduit for cooling liquid to pass, said conduit defining in the gripping device an inlet and an outlet for connection thereof to the corresponding outside cooling circuit.
  • the opening and closing of the clamps is determined by some pneumatic cylinders which act over them.
  • the means of removing the boxes, once shaped and heat-welded may consist of a motorized conveyor belt, arranged beneath the box former, the finished boxes falling over it due to the concealment of the concealable stops of the former.
  • the machine object of this invention presents means of supply of the unfolded boxes, consisting of a lifting platform (1), over which the unfolded boxes are piled (2).
  • some means of transport of the unfolded boxes (2) are arranged consisting of a motorized carriage (3), permitting displacement in a horizontal direction, and over which, is installed a pneumatic cylinder (4) causing the vertical displacement of an arm (5) equipped a suction pad (6) activated pneumatically, and which hold the unfolded boxes (2) during their transport.
  • the carriage (3) picks up the boxes one by one from the platform (1) and transports them to the heating unit placing them on coplanary plates (7) where they are supported with what will be the sides of the box.
  • this heating unit includes some heaters (8) that may be placed near or far away from the opposite ends of the adjoining sides of the box by the action by some lower cylinders (9).
  • the mission of these heaters (8) is to project hot air over the opposite ends of the adjoining sides of the unfolded boxes, being equipped with nozzles (10) defining a flat right angled outlet, which permits them to simultaneously heat said opposite ends of the adjoining sides of the box to be shaped.
  • the machine includes means of immobilizing them, consisting of some treaders (11) which are activated by pneumatic cylinders (12) installed over a fixed upper bridge (13).
  • the treaders (11) vertically press the sides of the unfolded box against the coplanary plates (7) included in the heating unit.
  • the box former is arranged, shown in the figure as (14) and including side walls (15) which define a gap between them having dimensions slightly higher than that of the box to be shaped.
  • the walls (15) of the box former define in their lower area some windows (16) through which emerge, towards the central gap, some concealable stops (17).
  • the set of concealable stops (17) defines a coplanary surface, perpendicular to the walls (15) of the box former.
  • the concealable stops (17) are assembled with the possibility of rotation over the back sides of the walls (15), the concealable stops (15) being activated, installed over each one of the walls (15), by a pneumatic cylinder (18) determining their arrangement in a hidden or protruding position with respect to the corresponding walls (15).
  • the side walls (15) of the box former (14) are extended at their upper end in some diverging ramps (19) destined to collaborate in the folding of the unfolded boxes (2) when they are displaced towards the interior of the box former by a treader-former, shown as a whole as (20) in figure 3.
  • the treader-former (20) consists of two side walls (21) which are joined to each other by a lower base (22) of less length that the former and by two upper cross bars (23), fixed at their ends, the treader-former having a width equal to the inside width of the box to be shaped.
  • the treader-former (20) includes between the side walls (21) two bending wedges (24) arranged perpendicular to the former and fixed to them with the possibility of rotation by means of the respective axles (25).
  • the bending wedges may be arranged in an open or closed position due to the action of two pneumatic cylinders (26) over them and have at their free end two chamfers set against each other which define a right angle.
  • the treader-former (20) is fixed to a pneumatic cylinder (27) fitted over the upper fixed bridge (13).
  • the pneumatic cylinder (27) transmit to the treader-former an alternative vertical motion, displacing it from the upper area of the heating unit to the inside of the box former and viceversa.
  • the base of the treader-former (20) is aligned vertically with the interior gap of the box former (14) and in its vertical descent acts over the base of the box (2) arranged in the heating unit and over which the heaters (8) have previously acted, projecting hot air over the opposite ends of the adjoining sides of the box to be shaped; in this descent, the treader-former (20) induces the introduction of the box inside the box former (14), bending its sides with respect to the base, first of all by the action of the ramps (19) over them and secondly, by the action of the sides (15) of the box former over said sides.
  • the treader-former (20) provokes the descent of the box to be shaped until it makes contact with the concealable stops (17) when the bending wedges (24) open to activate with their ends, against the edges defined by the base of the box and two of its sides, this moment corresponding with that representing in figure 6.
  • the machine For the sides of the shaped box to be kept in a position perpendicular to the base thereof, the machine includes in the corners of the box former (14), some means of pressing, consisting of tightening clamps (28) which are activated by pneumatic cylinders (29); these clamps (28) press the opposite ends of the adjoining sides of the box which are still hot, determining their heat-welding, by which the box is definitely shaped.
  • the bending wedges (24) pass to the closing position and the treader-former set is displaced towards the upper area, by the action of the cylinder (27); simultaneously the concealable stops (17) are concealed in the walls (15) and the finished box falls under its own weight towards means for removal, consisting of motorized transport means (30), responsible for removing the boxes from the machines.

Landscapes

  • Making Paper Articles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
EP01119324A 1996-05-09 1997-05-08 Machine de façonnage de cartons d'un matériau thermosoudable Expired - Lifetime EP1175996B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES009601041A ES2131442B1 (es) 1996-05-09 1996-05-09 Maquina para conformar cajas de material termosoldable.
ES9601041 1996-05-09
EP97500084A EP0806290B1 (fr) 1996-05-09 1997-05-08 Machine de façonnage de cartons d'un matériau thermosoudable

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97500084A Division EP0806290B1 (fr) 1996-05-09 1997-05-08 Machine de façonnage de cartons d'un matériau thermosoudable

Publications (3)

Publication Number Publication Date
EP1175996A2 true EP1175996A2 (fr) 2002-01-30
EP1175996A3 EP1175996A3 (fr) 2002-06-12
EP1175996B1 EP1175996B1 (fr) 2003-08-13

Family

ID=8294760

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01119324A Expired - Lifetime EP1175996B1 (fr) 1996-05-09 1997-05-08 Machine de façonnage de cartons d'un matériau thermosoudable
EP97500084A Expired - Lifetime EP0806290B1 (fr) 1996-05-09 1997-05-08 Machine de façonnage de cartons d'un matériau thermosoudable

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP97500084A Expired - Lifetime EP0806290B1 (fr) 1996-05-09 1997-05-08 Machine de façonnage de cartons d'un matériau thermosoudable

Country Status (4)

Country Link
EP (2) EP1175996B1 (fr)
AT (1) ATE222177T1 (fr)
DE (1) DE69714641D1 (fr)
ES (1) ES2131442B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1787793A3 (fr) * 2005-11-18 2009-12-09 Bini Meccanica S.r.l. Dispositif pour former un plateau à partir d'un flan

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2177470B1 (es) * 2001-05-18 2004-09-01 Tecnicart Aplicacions Tecniques Del Cartro, S.L. Maquina para la fabricacion de cajas de carton.
ES2523902B1 (es) * 2013-05-31 2015-09-08 Telesforo González Olmos Máquina formadora de cajas y/o tapas de material laminar
CN105290799A (zh) * 2015-11-27 2016-02-03 东莞市欣桂实业有限公司 一种自动点胶折合成型设备及其生产工艺
CN110126345B (zh) * 2019-05-16 2020-12-08 中山市美易达包装有限公司 一种高效智能纸盒折叠装置
CN118596543B (zh) * 2024-05-07 2025-09-19 天能电池集团(江苏)电源有限公司 一种蓄电池表面加热装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB900118A (en) * 1958-08-11 1962-07-04 John Cleland & Son Ltd Improvements in or relating to apparatus for forming cartons
US3602108A (en) * 1969-08-14 1971-08-31 Container Corp Apparatus for forming container body
US4936815A (en) * 1988-04-18 1990-06-26 Liberty Diversified Industries Tray forming machine
NO900059L (no) * 1990-01-05 1991-07-08 Norsk Hydro As Utstyr for folding og sammenfoeyning av kasser som dannes av flate eller hovedsakelig flate kasseemner.
ES2024243A6 (es) * 1990-05-10 1992-02-16 Embalaje Iberoamericana Perfeccionamientos en maquinas conformadoras de contenedores.
ES2066669B1 (es) * 1992-07-16 1995-10-16 Boix Maquinaria Sa Mejoras introducidas en moldes para la formacion de cajas de carton.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1787793A3 (fr) * 2005-11-18 2009-12-09 Bini Meccanica S.r.l. Dispositif pour former un plateau à partir d'un flan

Also Published As

Publication number Publication date
EP0806290B1 (fr) 2002-08-14
EP0806290A2 (fr) 1997-11-12
ES2131442B1 (es) 2000-01-16
EP1175996B1 (fr) 2003-08-13
DE69714641D1 (de) 2002-09-19
ATE222177T1 (de) 2002-08-15
EP0806290A3 (fr) 1999-05-12
ES2131442A1 (es) 1999-07-16
EP1175996A3 (fr) 2002-06-12

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