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WO1996009924A1 - Appareil de formage de recipients - Google Patents

Appareil de formage de recipients Download PDF

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Publication number
WO1996009924A1
WO1996009924A1 PCT/AU1995/000627 AU9500627W WO9609924A1 WO 1996009924 A1 WO1996009924 A1 WO 1996009924A1 AU 9500627 W AU9500627 W AU 9500627W WO 9609924 A1 WO9609924 A1 WO 9609924A1
Authority
WO
WIPO (PCT)
Prior art keywords
container forming
sheet
container
forming station
mould
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.)
Ceased
Application number
PCT/AU1995/000627
Other languages
English (en)
Inventor
Zoltan Tuskes
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.)
LINEAR FORM Pty Ltd
PRATHER DIANNE
Original Assignee
LINEAR FORM Pty Ltd
PRATHER DIANNE
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 LINEAR FORM Pty Ltd, PRATHER DIANNE filed Critical LINEAR FORM Pty Ltd
Priority to AU35978/95A priority Critical patent/AU700173B2/en
Priority to EP95933234A priority patent/EP0784532A4/fr
Priority to JP8511200A priority patent/JPH10506336A/ja
Publication of WO1996009924A1 publication Critical patent/WO1996009924A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/18—Thermoforming apparatus
    • B29C51/20—Thermoforming apparatus having movable moulds or mould parts
    • B29C51/24—Thermoforming apparatus having movable moulds or mould parts mounted on movable endless supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum

Definitions

  • the forming element pairs With mould elements mounted to complementary and synchronised strings, belts, chained links or conveyor, the forming element pairs are able to be moved to continuously and successively come together to engage with a sheet or ribbon of stock material fed therebetween.
  • the forming element pairs can be mounted to travel the length of a container formation zone or station at a suitable working spacing. At the end of the zone, the forming elements part to release the formed sheet therefrom at the end of the zone and then loop back to re-engage in the container forming process.
  • Forming elements, dies or female mould pieces 21 can be mounted, in this embodiment, one to each link or plate of chain, belt or conveyor 16.
  • Each female mould piece 21 can have upstanding end walls 22 and 23 forming a container shape between side walls (not shown).
  • the hollow of the female mould piece provides the mould surface against which the deformable or softened plastic or like stock sheet is pushed or pressed to shape or mould it.
  • At each corresponding link on complementary chain or belt 15 there can be a respective forming element, die or mould piece 24 which can be mounted in a complementary support therefor such as the hollow of a peripheral enclosing wall, cylinder or housing whose end walls 25 and 26 are seen in the section of FIG. 1.
  • the male mould element, die or plug is the means by which, in this embodiment, the sheet is partly pushed into the corresponding female mould. The operation of the mould elements is described below in greater detail with reference to FIG. 2.
  • the two mould parts can engage the sheet and form a seal therewith.
  • sealing rings 39, 40 can be used to engage the sheet therebetween to form the aforesaid seal.
  • Compressed air can be operative to push the plastic around lip 41 to form a desired shape or profile at the container opening.
  • the male die part or plug 24 is biassed by means such as springs (not shown) to the retracted position seen at the left and right hand ends of FIG. 2, to return to the fully withdrawn position, shown generally at 42 when cam follower, or roller 34, passes over the shoulder 43 in the cam surface so as to disengage therefrom.
  • the plastic may need to be retained for longer times between the mould pieces so as to complete the moulding process.
  • the male die part or plug 24 can be used to start the extrusion in preferred embodiments. Compressed air then finishes the forming process, pushing the plastic against the cold female mould or die part where the plastic hardens. Compressed air might be used to provide all the forming needed in the container.
  • the female mould parts on chain, belt or conveyor 16 may be cooled by a cooling means before their return to the container forming zone so as to remove therefrom what heat is gained by contact with the heated sheet (to maintain the mould parts effectiveness when passing the forming station, reducing the time needed to complete the process and the length of the forming station).
  • a cooling means before their return to the container forming zone so as to remove therefrom what heat is gained by contact with the heated sheet (to maintain the mould parts effectiveness when passing the forming station, reducing the time needed to complete the process and the length of the forming station).
  • the female mould can be cooled for the opposite purpose of returning the material to a hardened form as quickly as possible after contact therewith, when the shaping process will be complete.
  • the male mould may incorporate a die or plug which complements the female part to squeeze the sheet thereagainst but this can introduce problems with temperature control of the parts.
  • the male mould may incorporate the plug illustrated and compressed air can be used to finish the job.
  • the male mould can comprise a housing or cylinder only and compressed air only can be used as the only means by which to distend the sheet, but this involves the use of greater volumes of compressed air.
  • the chains, belts or conveyors may comprise die support plates which may be joined by pivot means such as pins, in a chain like structure.
  • the 'chain' can comprise a series of links in a variety of forms, pivoted together, as with a caterpillar track.
  • the 'chain' is a means by which respective pieces of container forming apparatus are brought together over the length of a container formation zone.
  • FIG. 3 is seen two chains or conveyors 50, 51, the second conveyor 51 being longer to create a zone 52 whereat the formed material can be extracted from the moulds on conveyor 51 before they reach the turnaround point about sprocket 54 whereat the spreading of the moulds at 53 would tear the formed material if the containers formed therein were still in place. Removing the containers from the moulds at the proper time is easily arranged by providing a guide which feeds the material outwardly at zone 52 as will be clear to the man in the art.
  • the two chains or conveyors 50 and 51 come together between pressure plates 55 and 56 which engage with the pivoted mould support plates of the conveyors via intervening runners or guides, 57 and 58, respectively.
  • FIG. 4 is seen a cross-sectional detail of a section of an apparatus at the container forming station between the pressure plates 105 and 106 which engage the two conveyors 81, 82 via spaced runners or guides with one of each pair being seen in the figure, 108 and 110 engaging conveyors 81 and 82, respectively.
  • a cam block 115 Between the spaced guides or runners engaging conveyor 82 is a cam block 115.
  • the conveyors are powered to move from left to right in this figure according to the arrow 70.
  • the push rods 71 to 73 are moved axially by the block 115 to move their respective plugs into the adjoining mould.
  • the push rods run on a roller or other suitable means to reduce friction.
  • FIG. 6 is seen a transverse section through the apparatus at the forming zone, between pressure plates 105, 106 with runners or guides 107 to 110.
  • the pressure plates are mounted to support rods 111 and 112 and held in place thereon by nuts such as 113 and 114.
  • cam block 115 and slide valve 116 passing air via port 117 to the chamber 96 behind the sheet material (not shown) in the respective female mould.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

La présente invention concerne un appareil (10) de formage de récipients (26) du type de ceux utilisés pour l'emballage de produits alimentaires. L'appareil (10) comporte des chaînes contrarotatives d'ensembles (15, 16) de formage de récipients défilant au travers d'un poste (14) de formage de récipients. Les ensembles comportent des moules (21, 24) permettant de former des récipients dans une feuille (11) les alimentant. La mise en forme des récipients peut se faire par soufflage de la feuille dans un moule (21). La feuille peut avoir été préformée par le mouvement d'un poinçon (24) avant le soufflage. Les éléments de moulage sont montés opérationnellement successivement sur des organes supports (81, 85) reliés entre eux par une articulation à pivot. Chacune des chaînes constituées des différents éléments de formage de récipients est entraînée en boucle fermée dans le poste de formage de récipients (14), défilant de façon synchrone, de façon que la feuille (11) se déforme dans le poste pour former un récipient (26) puis sort dudit poste.
PCT/AU1995/000627 1994-09-26 1995-09-25 Appareil de formage de recipients Ceased WO1996009924A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU35978/95A AU700173B2 (en) 1994-09-26 1995-09-25 Container forming apparatus
EP95933234A EP0784532A4 (fr) 1994-09-26 1995-09-25 Appareil de formage de recipients
JP8511200A JPH10506336A (ja) 1994-09-26 1995-09-25 コンテナ成形装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPM8416A AUPM841694A0 (en) 1994-09-26 1994-09-26 Container forming apparatus
AUPM8416 1994-09-26

Publications (1)

Publication Number Publication Date
WO1996009924A1 true WO1996009924A1 (fr) 1996-04-04

Family

ID=3782935

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1995/000627 Ceased WO1996009924A1 (fr) 1994-09-26 1995-09-25 Appareil de formage de recipients

Country Status (5)

Country Link
EP (1) EP0784532A4 (fr)
JP (1) JPH10506336A (fr)
AU (1) AUPM841694A0 (fr)
CA (1) CA2200971A1 (fr)
WO (1) WO1996009924A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010112821A (ko) * 2000-06-15 2001-12-22 김동환 용기 자동성형기
CN111438919A (zh) * 2020-04-10 2020-07-24 重庆茂森塑料制品有限公司 塑料瓶批量连续自动化生产线
CN111531852A (zh) * 2020-05-09 2020-08-14 重庆茂森塑料制品有限公司 塑料瓶大批量生产设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2062461A5 (en) * 1969-09-23 1971-06-25 Bp Chem Int Ltd Thermoplastic sheet material moulding mach - ine
US4421712A (en) * 1980-08-13 1983-12-20 Maryland Cup Corporation Continuously rotary thermo-forming systems and apparatus of the pressure assist, plug assist and match mold type

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2062461A5 (en) * 1969-09-23 1971-06-25 Bp Chem Int Ltd Thermoplastic sheet material moulding mach - ine
US4421712A (en) * 1980-08-13 1983-12-20 Maryland Cup Corporation Continuously rotary thermo-forming systems and apparatus of the pressure assist, plug assist and match mold type

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, M-1226, page 155; & JP,A,03 288 635 (HOKKAI CAN CO. LTD), 18 December 1991. *
See also references of EP0784532A4 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010112821A (ko) * 2000-06-15 2001-12-22 김동환 용기 자동성형기
CN111438919A (zh) * 2020-04-10 2020-07-24 重庆茂森塑料制品有限公司 塑料瓶批量连续自动化生产线
CN111531852A (zh) * 2020-05-09 2020-08-14 重庆茂森塑料制品有限公司 塑料瓶大批量生产设备
CN111531852B (zh) * 2020-05-09 2022-01-21 重庆茂森塑料制品有限公司 塑料瓶大批量生产设备

Also Published As

Publication number Publication date
AUPM841694A0 (en) 1994-10-20
CA2200971A1 (fr) 1996-04-04
JPH10506336A (ja) 1998-06-23
EP0784532A1 (fr) 1997-07-23
EP0784532A4 (fr) 1998-07-08

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