WO1996018490A1 - Cassette destinee a maintenir un manchon en materiau d'emballage - Google Patents

Cassette destinee a maintenir un manchon en materiau d'emballage Download PDF

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Publication number
WO1996018490A1
WO1996018490A1 PCT/EP1995/003819 EP9503819W WO9618490A1 WO 1996018490 A1 WO1996018490 A1 WO 1996018490A1 EP 9503819 W EP9503819 W EP 9503819W WO 9618490 A1 WO9618490 A1 WO 9618490A1
Authority
WO
WIPO (PCT)
Prior art keywords
cassette
sleeve
cooling strip
connecting line
cooling
Prior art date
Application number
PCT/EP1995/003819
Other languages
German (de)
English (en)
Inventor
Oliver Charriere
Charly Genoud
Hans-Peter Aeschlimann
Original Assignee
Tetra Laval Holdings & Finance S.A.
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 Tetra Laval Holdings & Finance S.A. filed Critical Tetra Laval Holdings & Finance S.A.
Priority to AU37430/95A priority Critical patent/AU3743095A/en
Publication of WO1996018490A1 publication Critical patent/WO1996018490A1/fr

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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/16—Straightening or flattening
    • B29C53/20—Straightening or flattening of tubes
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • 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
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/0003—Shaping by bending, folding, twisting, straightening, flattening or rim-rolling; Shaping by bending, folding or rim-rolling combined with joining; Apparatus therefor
    • B31F1/0035—Straightening or flattening
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • 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
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms
    • 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
    • B31B50/74—Auxiliary operations
    • B31B50/741—Moistening; Drying; Cooling; Heating; Sterilizing

Definitions

  • the invention relates to a cassette for receiving and holding a sleeve made of flexible, plastic packaging material, with side walls, a first of which has an approximately flat part for attaching the cassette to a conveyor line.
  • the object of the invention is therefore to provide a cassette with the features of the type mentioned, with which the cooling and curing of the longitudinal sealing seam of a freshly created sleeve made of plastic material takes place quickly, effectively and in such a way that the cross section of the removed sleeve has a good roundness .
  • a second side wall has a cooling strip extending over the height of the cassette and that two counter supports are provided at a distance from one another on the side located with respect to the longitudinal center axis of the cassette opposite the cooling strip. It took a long time and many Trials are required before it has been determined where improvements have to be made in the production machine in order to obtain a sleeve which, after the longitudinal seal seam has been produced and any further treatment, has a good roundness, preferably a circular cross section.
  • the type of cooling and hardening of the longitudinal sealing seam contributes significantly to how the cross-sectional shape is designed after the fresh production of the plastic sleeve.
  • a cassette is used which receives the freshly created sleeve which has been pulled off the sealing mandrel and at the same time presses the not yet hardened longitudinal sealing seam flat onto a cooling strip.
  • the contact area of the cooling strip should be larger than the area of the actual longitudinal sealing seam.
  • the cooling strip should not only be Longitudinal seal seam itself, ie the two overlapping layers of material cool but also prefer the immediate neighboring areas. This prevents kinks and at the same time ensures good heat dissipation from the longitudinal seal seam into the cooling strip.
  • this flat pressing succeeds of the sleeve area with the longitudinal sealing seam on the cooling strip is particularly useful, because with the counter supports you can force the sleeve edge areas next to the longitudinal sealing seam, e.g. edge strips with a thickness of half to the entire thickness of the longitudinal sealing seam on both sides of the same, against the cooling surface of the cooling strip.
  • the connecting line of the two counter supports i.e. a line that is drawn from one counter support to the other, spans an isosceles triangle with the central contact line of the cooling strip, that the surface of the cooling strip facing the center of the cassette is flat and the corresponding surfaces of the counter supports are curved in such a way that the center of curvature is curved located outside the cassette. If you draw a line from the end of the connecting line of the two counter supports to the longitudinal center line of the cooling strip, then the isosceles triangle mentioned arises, this observation being made in the direction of view of the longitudinal center line, so that the cross section of the cassette can be seen.
  • the cooling effect on the longitudinal sealing seam is increased by the planar design of that surface of the cooling strip which faces the sleeve to be cooled.
  • a certain deformation is exerted on the sleeve in such a way that the sleeve area with the longitudinal sealing seam also becomes almost flat and therefore lies flat on the flat cooling strip.
  • the curvature of the counter supports then does not disturb the roundness of the sleeve, even if it experiences a certain pressure at the contact points of the counter supports.
  • the sleeve is - seen in cross section - deformed so that the circle becomes a kind of egg shape, but this "bad” roundness is surprisingly removed after the longitudinal seal seam has been cooled and the sleeve has been released from the cassette, and the removed sleeve is circular in cross section. As soon as the pressure of the counter supports is removed and the longitudinal sealing seam has hardened, the "good” roundness, which is expressed in cross section in the circular shape, is produced in a desired manner.
  • centering guides are arranged on the two arches, each between the counter support and the cooling strip, outside the isosceles triangle.
  • This description of the arrangement of the centering guides refers again to the cross-sectional view of the cassette outside and the sleeve inside.
  • these guide parts of the cassette provide slight pressure on the sleeve from the outside in, in the area of the material which appears in cross section as an arc and which is between the Counter support and the cooling bar.
  • the cross section is again considered and a line drawn from one centering guide directly to the other.
  • This connecting line of the two centering guides is then parallel to that of the counter supports.
  • the end points of this connecting line between the centering guides are preferably located at the point where the centering guide contacts the outer surface of the clamped sleeve. In cross section it is a point, in the view radially from the inside of the tube wall of the sleeve it is a line.
  • the centering guide does not have to extend over the entire height of the sleeve and therefore not over the entire height of the cassette, because the sleeve held does not have to be touched over every point of its height, although this would not be disadvantageous.
  • the centering guide need not extend over the entire height of the cassette, which corresponds approximately to the height of the sleeve to be machined. Nevertheless, the surface of the centering guide facing the interior of the cassette or the sleeve should preferably be flat.
  • an opening extending parallel to the longitudinal central axis of the cassette is arranged in the region of a side wall, the cooling strip preferably being diametrically opposite the flat part for attaching the cassette.
  • two adjacent side walls in their - • seen in the cross-sectional form over the circumference extending length is only about half with the result that this results in between these two side walls, the described opening, which then thus extends parallel to the cooling bar.
  • the cassette can preferably be left open in the area next to a long side of the cooling strip and the - seen over the circumference - the next edge, which begins in cross-section, for example after 70 ° to 90 °, preferably after 80 °, can begin before the centering guide. Viewed in cross section, the material of the cassette would therefore be missing on the one arch between the centering guide and the cooling strip, so that the opening extending parallel to the longitudinal central axis of the cassette is located here
  • This opening is an undisturbed free movement of holding means that have contact with the sleeve from the outside, specially designed as suction cups holding the sleeve outside and pushing the sleeve axially from the outside into the cassette and from this holding and transport position can also move out of the sleeve again.
  • This opening has a particularly favorable effect when one thinks of the return stroke of the holding means, which can be moved back into the initial position after a sleeve has been pushed completely through the cassette without the sleeve having to be moved away. If one were to think of holding means provided with a piston or the like, one would first have to move the cassette into another position before the return stroke in such a way that the return stroke is not occupied by a cassette. Alternatively, one could certainly not move the cassette laterally, that is to say transversely to its longitudinal central axis, during the return stroke of such a piston slide, because otherwise the piston, which is simultaneously returning, would strike the cassette.
  • the cooling strip opposite the mentioned first side wall with the flat part on which the cassette e.g. is attached to a conveyor line It has been shown that in such an arrangement, the cooling bar is in an optimal position, easily accessible from the outside and next to the opening, which is also easily accessible from the outside.
  • the distance of the plane through the cooling strip from the connecting line of the two centering guides in the respective contact line with the sleeve on the one hand and the distance of this connecting line between the two centering guides from the connecting line of the two counter supports on the other hand and thirdly half the length of the connecting line of the two counter supports is smaller than the radius of the undeformed, circular sleeve.
  • the absolute amounts of the distances mentioned depend on the radius of the sleeve to be machined.
  • the sleeve can be deformed in an optimal manner, so that the longitudinal seal seam and also its edge regions are pressed flat over the height of the entire longitudinal seal seam onto the sleeve such that good cooling of the longitudinal seal seam is achieved in a short time is guaranteed without having to introduce special coolant to the cooling strip.
  • the distance of the plane through the cooling strip from the connecting line of the two centering guides 40.5 mm ⁇ 1 mm
  • the distance of the connecting line of the two centering guides from the connecting line of the two counter supports 36 mm ⁇ 1 mm
  • the length of the connecting line of the two centering guides 94 mm ⁇ 1 mm
  • the length of the connecting line of the two counter supports 90 mm ⁇ 1 mm and preferably the distance between those laid through the cooling strip Level from the respective counter support ⁇ 66.5 mm ⁇ 1 mm.
  • the areas of the sleeve to be cooled lie optimally on the cooling strip, and a flat contact of the latter with the seam area of the sleeve is ensured. If the dimensions are significantly exceeded, there is an incorrect deformation of the sleeve during its stay inside the cassette, and after the sleeve has been removed from the cassette after the longitudinal sealing seam has hardened, the cross section of the sleeve can deviate slightly from the circular shape. It is therefore particularly expedient to adhere to the specific dimensions given above in order to avoid any failure or errors that may occur.
  • the cooling strip is made of metal, preferably aluminum. This metal is easy to process and also has good thermal conductivity, which is desirable for the absorption and removal of the heat calories absorbed by the longitudinal seal seam
  • a multiplicity of cassettes can also be provided on a conveyor belt between a sleeve-making machine and a lid and bottom molding machine.
  • a sleeve-making machine which, for example, produces a sleeve made of foamed plastic material per second; and at the same time to use a lid and bottom molding machine which processes six units per six seconds.
  • the last-mentioned lid and bottom molding machine of this particular embodiment requires a total of six sleeves, which can then be processed for six seconds with the start of treatment at the same time, until the cover and base are then formed on the six sleeves, for example by injection molding.
  • the conveyor line would then be a kind of adaptation unit, because both the described sleeve making machine and the downstream lid and bottom molding machine can work at the same time, the meantime is used to fill the six stations of the lid and bottom molding machine and also to appropriately cool the longitudinal sealing seam.
  • An adaptation to a first machine with a first cycle time is then possible to a second machine with a second cycle time, and at the same time the time of the adaptation is used for cooling, which is also shown in FIG the preferred manner according to the invention.
  • the cassette of the type described above for transporting and cooling sleeves made of foamed plastic material and provided with a longitudinal seal seam for the production of packaging for flowable filling goods.
  • the use of the cassette is therefore of particular interest to packaging manufacturers.
  • Packaging for flowable filling goods can be produced very effectively and effectively in this way.
  • Flowable filling goods are liquid goods of various viscosities (volatile liquids, viscous pastes, etc.) as well as free-flowing filling goods or bulk goods.
  • Particularly in the case of liquid packs, particularly high demands must be made of the tightness and strength of seams, so that the use of the cassette according to the invention described here means a favorable further development for the manufacturer
  • FIG. 1 shows in perspective a preferred embodiment of a cassette, into which one looks through the opening
  • FIG. 2 shows a cross-sectional view of this cassette with the deformed sleeve and dimensions indicated
  • FIG. 3 shows a representation of another embodiment of FIG
  • FIG. 4 broken off one end of an endless conveyor strand in the form of a chain with a plurality of chains attached to and rotating with the chain
  • the cassette serves to accommodate a sleeve 2, which is only shown deformed in the drawings, and which is made of a flexible, foamed plastic, but alternatively can also be made of plastic-coated paper.
  • the cassette 1 has roughly four side walls 3, 4, 5 and 6.
  • a first side wall 4 has a flat part, on which the cassette 1 is attached by means of screws 7 shown in FIGS. 2 and 4 to a conveyor line 8, which can be seen broken off in FIG. 4 as a chain, the first side wall 4 mentioned in each case a chain link is screwed tight.
  • the side wall 6 opposite this first side wall 4 is only half-finished, namely is integrally formed on the side wall 5 at one end and carries a cooling strip 9 at its other end. This cooling strip extends over the entire height H (FIG. 1) of the cassette 1.
  • FIG. 1 the direction of insertion of a sleeve 2 is shown with the arrow 10, which is why different parts of the cassette 1, including the cooling strip 9, have a beveled or bent insertion part 9 '.
  • the reference number 9 ' here designates the bevelled insertion part 9' of the cooling strip 9. This is designed in a strip-like manner and evenly over the rest of the cassette height.
  • two vertically intersecting dashed lines are shown in the center of the cassette 1 and also the sleeve 2, the crossing point 11 of which is the longitudinal central axis of the cassette 1. It can be seen that the cooling strip 9 extends parallel to this longitudinal center axis 11.
  • counter supports 12a and 12b are shown to extend longitudinally almost over the height H of the entire cassette 1, the counter supports 12a, 12b also being bevelled or beveled on the side facing the insertion direction 10. have bent insertion parts 12 '. If one considers the longitudinal central axis 11 as a reference point, then the two counter supports 12a and 12b are located on the other side opposite the cooling strip 9, and in addition the counter supports 12a and 12b are at a distance V G from one another if one considers the cross section and the two counter supports 12a , 12b connects with a shortest line V G The shortest connecting line V G of the two counter supports 12a, 12b is shown in dashed lines in FIGS. 2 and 3, and their length is shown on the outside left by a double arrow
  • the cassette 1 also has two centering guides 13a, 13b, which are arranged on diametrically opposite sides with respect to the longitudinal central axis 11 of the cassette 1, that is to say the centering guide 13a on the side wall 3 and the centering guide 13b on the opposite side wall 5 .
  • the centering guides 13a and 13b also have their beveled, bent insertion parts 13 '.
  • the arrangement of the centering guides 13a and 13b can also be described in such a way that they each lie on the arc between the cooling strip 9 and the counter support 12a, which extends over approximately 130 ° or 12b. To be more precise, they are located on the bend approximately in the 90 ° position when one goes out from the cooling strip 9. They are also outside an isosceles triangle, which could be drawn from the points 14a and 14b of the counter supports 12a and 12b to the central contact line 15 (shown in broken lines in FIG. 3).
  • This connecting line V 2 of the two centering guides 13a, 13b runs through the longitudinal center line 11 of the cooling strip 9, which is shown as the center point in FIGS. 2 to 4.
  • the vertical line 16 likewise running through this longitudinal center line 11 is perpendicular to the flat surface 17 ′ of that of the longitudinal center line 11 facing side of the cooling bar 9, through which one can also think a level E placed.
  • This plane E is parallel to the connecting line V z of the two centering guides 13a, 13b and parallel to the connecting line V G of the two counter supports 12a, 12b.
  • the length of the connecting line V z is shown on the right in FIGS. 2 and 3 with the double arrow, which, like the double arrow shown on the far left, is vertical in the figures.
  • FIG. 1 one looks through a large opening 17 onto the first side wall 4 arranged behind and to the left with the flat part, where holes 18 for the passage of the fastening screws 7 can be seen.
  • This opening 17 extends parallel to the longitudinal central axis 11 of the cassette 1.
  • the opening 17 lies in the region of the side walls 3 and 6, half each so to speak. They can also be thought of as being arranged in the region of one side wall 3 or the other side wall 6.
  • this opening, indicated by the arrow 17 lies in the region of the 90 ° bend between the upper centering guide 13a and the free end edge of the cooling strip 9.
  • This opening 17 is closed by the sleeve 2 held by the cassette 1. It can be seen how holding means can reach the surface of the sleeve 2 from the outside through this opening 17.
  • suction cups are in this way able to hold the sleeve both before and in as well as after passing through the cassette 1, if one considers the transport direction according to arrow 10 (FIG. 1) during the return stroke of these suction cups, not shown, at a radial distance outside the cassette 1, the latter can move further with the conveyor line 8 in the direction of the arrow 19 shown in FIG. 4 transversely to the sliding direction 10 of the sleeve 2. A fault is advantageously eliminated.
  • D denotes the distance between the plane E through the cooling strip 9 from the connecting line V z of the two centering guides 13a, 13b, said connecting line V z , as said, in the respective contact line 15a, 15b the sleeve 2 lies with c is the distance of the plane E from the two counter supports 12a, 12b.
  • e is the distance of the connecting line V z between the two centering guides of the connecting line V Q of the two counter supports 1 a, 12 b.
  • the length of the connecting line V G 90 mm ⁇ 1 mm represented by the left vertical double arrow in FIGS. 2 and 3.
  • the length of the connecting line V z shown by the vertical double arrow shown on the right is 94 mm ⁇ 1 mm. This corresponds approximately to the diameter of the undeformed sleeve 2.
  • the distance c between the plane E through the cooling strip 9 and the respective counter support 12a or 12b is 66.5 mm ⁇ 1 mm. The following also applies:
  • the conveyor line 8 shown as a chain runs intermittently around the deflection wheel 20 in the direction of the curved arrow 19.
  • a plurality of cassettes 1 is attached, which are conveyed in this way intermittently at a predetermined rate so that, for example, freshly created sleeves 2 are loaded at the top and remain in the conveyor line 8 for several seconds, a six-station station (not shown) of a lid and Fill the bottom molding machine.
  • the longitudinal sealing seam of the sleeve 2 including the edge regions designated LS in FIGS. 2 and 4 lies flat on the flat surface 17 ′ of the cooling strip 9, with the result of intensive heat dissipation. It can thus be loaded sleeves 2 from the cassettes 1 in a lid and bottom molding machine, which are circular in cross-section in the unloaded state and are well suited for the production of packaging for flowable filling goods.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention concerne une cassette destinée à loger et maintenir un manchon en matériau d'emballage flexible comportant du plastique, ladite cassette présentant des parois latérales (3-6), dont la première (4) présente une partie pratiquement plate servant à poser la cassette (1) sur une chaîne de transport. Le joint de soudure longitudinal d'un manchon en plastique venant d'être réalisé, est soumis à un refroidissement et à un durcissement qui doivent être efficaces, et réalisés de façon à ce que la section du manchon retiré présente une bonne rotondité. A cet effet, la cassette (1) selon l'invention comporte une seconde paroi latérale (6) présentant une barre de refroidissement (9) s'étendant au-dessus de la hauteur (H) de la cassette (1), et deux contre-supports (12a, 12b), à distance l'un de l'autre, sont placés sur le côté opposé à la barre de refroidissement (9) par rapport à l'axe longitudinal de la cassette (1).
PCT/EP1995/003819 1994-12-12 1995-09-27 Cassette destinee a maintenir un manchon en materiau d'emballage WO1996018490A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU37430/95A AU3743095A (en) 1994-12-12 1995-09-27 Cassette for securing a sleeve of packaging material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH375694 1994-12-12
CH3756/94-6 1994-12-12

Publications (1)

Publication Number Publication Date
WO1996018490A1 true WO1996018490A1 (fr) 1996-06-20

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PCT/EP1995/003819 WO1996018490A1 (fr) 1994-12-12 1995-09-27 Cassette destinee a maintenir un manchon en materiau d'emballage

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AU (1) AU3743095A (fr)
WO (1) WO1996018490A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1467624A (fr) * 1965-02-08 1967-01-27 Continental Can Co Procédé et appareil pour la fabrication de corps d'emballage tubulaires
FR2447805A1 (fr) * 1979-01-31 1980-08-29 Embadac Sa Procede et machine pour corriger le profil d'un element tubulaire
EP0498764A1 (fr) * 1991-02-05 1992-08-12 Kmk Lizence Ltd. Appareil pour la fabrication de corps tubulaires
FR2691387A1 (fr) * 1992-05-21 1993-11-26 Gaz De France Appareil de remise en forme de pièces tubulaires.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1467624A (fr) * 1965-02-08 1967-01-27 Continental Can Co Procédé et appareil pour la fabrication de corps d'emballage tubulaires
FR2447805A1 (fr) * 1979-01-31 1980-08-29 Embadac Sa Procede et machine pour corriger le profil d'un element tubulaire
EP0498764A1 (fr) * 1991-02-05 1992-08-12 Kmk Lizence Ltd. Appareil pour la fabrication de corps tubulaires
FR2691387A1 (fr) * 1992-05-21 1993-11-26 Gaz De France Appareil de remise en forme de pièces tubulaires.

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