EP0524062B2 - Procédé de réalisation d'une charge de rouleaux de matériaux compressibles - Google Patents

Procédé de réalisation d'une charge de rouleaux de matériaux compressibles Download PDF

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Publication number
EP0524062B2
EP0524062B2 EP92401975A EP92401975A EP0524062B2 EP 0524062 B2 EP0524062 B2 EP 0524062B2 EP 92401975 A EP92401975 A EP 92401975A EP 92401975 A EP92401975 A EP 92401975A EP 0524062 B2 EP0524062 B2 EP 0524062B2
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EP
European Patent Office
Prior art keywords
modules
compression
rolls
stack
rollers
Prior art date
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Expired - Lifetime
Application number
EP92401975A
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German (de)
English (en)
French (fr)
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EP0524062A1 (fr
EP0524062B1 (fr
Inventor
Maurice Morel
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.)
Saint Gobain Isover SA France
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Saint Gobain Isover SA France
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Classifications

    • 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/20—Means for compressing or compacting bundles prior to bundling

Definitions

  • the present invention relates to packaging compressible materials, and in particular insulating felts of glass wool or other wool mineral, and more specifically aims to achieve palletizable loads of reduced size facilitating transport and storage of such products.
  • Light fibrous insulating materials are generally packed in the compressed state under the form of rolls closed by unitary packages paper belt or envelope type plastic material, mainly based on polyethylene, heat shrunk. To decrease the cost of transport operations, especially during loading and unloading, and to simplify storage, these rolls are usually assembled in batches on pallets. In practice, the size of these must be compatible with dimensions of the means of transport, trucks or most often, railroad cars. These latter also limit the total height of the palletized load, which must therefore ultimately comply a fairly strict template into which a reduced number of rollers.
  • the invention relates to a new solution for compact a load of rollers of material compressible, and in particular of fibrous material insulator, or, of course the same thing, for increase the number of rollers per load, and this while preserving the quality of the material, taking care in particular not to create deformations permanent ones remaining during the unpacking of the rolls, even after a relatively long storage period long, for example a few months.
  • Temporary vertical compression can be very important, and in any case correspond to a compression mismatch well above the limit of elastic compression of the material which, remember, is already very strongly compressed during the roll-up phase.
  • the compression can for example temporarily lower the height load at a height between 50 % and 80% of the initial height, the duration of the compression phase being adjusted accordingly, and shorter as the compression temporary exercise is high.
  • the stack must be kept to the dimensions obtained after it has relaxed; for that we can use a strapping machine which will places two or three links, for example in terms of plastic.
  • Another solution is to carry out a wrapping with plastic stretch film, the charge then being protected from the weather and can therefore be stored in the open air.
  • the stack of rollers is preferably limited to three layers, but several charges, two at all least, can be layered before step of setting up links, taking care of course the axes of the rollers are properly aligned to prevent the weight of the upper layers does not degrade the lower layers.
  • a device capable of implementing the method according to the invention includes a stacking station layers of rollers, a compression station vertical, possibly a rotation station 90 ° from the stack, an installation station links and a transporter to move the stack from one post to another.
  • the compression station can be for example constituted by a pressure plate suspended from the by means of a hoist above a conveyor strip for inserting and removing batteries. Such a compression station can be inserted in an existing packaging line without disruption of it.
  • the post compression consists of a hydraulic table lifting the load to come and press it against a fixed flat pressure plate, the table is then substituting for the carrier.
  • the pressure plate is not strictly flat but has an extra thickness in its central part, constituting a kind of punch which increases locally and in particular to plumb with the rollers in the middle of each module, compression force. This allows a good alignment of the rollers of the same module which, when fitting the belt, have a certain tendency to have an arc, the roller of the middle playing a role of keystone.
  • FIG. 1 represents a diagram in perspective of a compression station of a device according to the invention.
  • rollers and more particularly rollers of glass wool-based felts are for example obtained by operating according to the processes described by the requests for Patent FR-A-2,553,744, EP-A-238,393 or EP-A-294 320, or any other process capable of producing a winding with such uniform compression as possible over the entire length of the strip coiled felt, so as to lead to formation of turns, all of the same thickness, including for the first coils which constitute the core of the roller and also its most brittle.
  • a glass wool felt can withstand compression ratios of 4 or more, which means that the thickness of the wound tape is less than a quarter of the initial thickness, initial thickness which is found when the strip is held.
  • all rolls are products with identical diameters, whatever either the thickness of the strip, so as to preserve dimensions and weight substantially constant, which simplifies their packaging. Thereafter and to fix the ideas, it will be done reference to a typical roller from 400 mm to 410 mm in diameter and 1200 mm long, but it goes from the process according to the invention can be applied to rollers of different diameters. Of the number of rolls per module or per load and half load can of course be changed and adapted to each particular case without leaving the part of the invention.
  • the rolls wrapped each in a shrink polyethylene film in the heat, or more simply in kraft paper are associated in modules of five, each module being belted.
  • the rollers are lying side by side, arranged in the same alignment.
  • This belt is under tension and deforms so the rollers which, from cylindrical, become ovoids, with their largest dimension according to the vertical.
  • the module has a height of the order of 445 mm and a length of 1495 - 1500 mm, which indicates a slight crushing on the coast.
  • the modules are superimposed, as shown in Figure 1, where schematically a stack made up of three modules 1, of five rollers retained by a belt 2 retracted. Because this belt compresses slightly rollers, upper generators rolls of a given module - or respectively the lower generators - are actually not strictly coplanar but define an arched curve, a roller - most often the central roller - playing a key role. This phenomenon can be annoying to the extent that the more the loads carried are parallelepiped and less will be their size. A shape adapted from the pressure plate according to the invention allows to remedy this problem perfectly as it will be shown later.
  • the stack of three modules thus formed has therefore a height between 1330 and 1340 mm. It is transported for example by a transporter belt 3 to the compression station. This compressor station is protected by side grids 4, whose role is simply ensuring the safety of line personnel conditioning which can be brought to work on the conveyor belt.
  • the essential organ is a pressure plate 5, here constituted by a block of reinforced concrete weighing 3 tonnes, supported by a metal frame in commercial profiles.
  • the pressure plate 5 is moved by means a hoist 6 capable of moving the platform to slow or fast speed (e.g. at a speed about 1 m / min at the time of compression and 4 m / min during the approach cycles and platform lift).
  • Hoist 6 is supported by a metal frame 7 which also plays a guide role of the pressure plate 5 provided with a sliding guide system on the posts the frame, and which also supports the transporter with band 3 to compensate for its deformation due to compression forces.
  • the set also includes a device by locking the pressure plate 5 in the high position, this device being for example constituted by bars 8 on which come abut the heels 9 associated with the pressure plate 5 thus prohibiting his descent.
  • this bars 8 are separated by a nice 10 manually controlled in the case here represented, but which can also be enslaved in automatic operation by presence detectors of a charge.
  • the pressure plate 5 has in its part central, facing the rollers in the middle of the pile, an extra thickness forming a kind of punch, which allows to bring flat the different modules.
  • the pressure plate 5 is lowered and crushes the pile so as to bring its height to a value, for example, between 950 and 1000 mm.
  • Such vertical compression is partially offset by an increase the length of the modules which, depending on the case, reaches 30 to 50 mm.
  • Such compression of rollers which is added to the compression of the felt made during the winding, is in itself perfectly inadmissible and would lead inevitably significant degradation of the felt, with a loss of thickness recovery, if it was maintained for a period of time relatively long. Nevertheless, it appeared that such degradation does not occur if this time period is short enough.
  • this compression is maintained for a period which is not less than 15 seconds nor more than 40 seconds and preferably between 20 and 30 seconds. If we choose to compress again plus the load, for example by means of a tray heavier presser, this compression time will preferably be reduced a little. In the otherwise, it can be extended, although this solution is generally not preferred because it leads to a slower pace of production.
  • the battery is then evacuated then rotated 90 ° by a suitable tilting device, so that place the rollers upright.
  • Another identical stack is then formed and, by means of a device gripping, for example of the pliers type, the two piles are placed one on the other on a pallet, ensuring that the rollers of the top row be aligned lower rollers.
  • the charge thus constituted is permanently maintained in good condition by wrapping using a plastic stretch film. This wrapping compensates for a loosening possible a little too important charges, without compressing them more (the rollers expand due to loosening, not swelling, in other words the air evacuated between the rollers during compression does not re-enter in the battery during the expansion phase).
  • the invention allows to significantly improve the load factor of the means of transport (railway wagons or trucks), the charges being of a reduced bulk.
  • the invention is in no way limited to the proposed embodiment and that it can be chose different variants: thus, the modules may not be glued but held by a any binding.
  • the battery can also be maintained before the compression by wrapping, which then makes the belts of the modules useless.
  • the mobile pressure plate can be replaced by a fixed tray associated with a table hydraulic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Basic Packing Technique (AREA)
  • Press Drives And Press Lines (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Primary Cells (AREA)
  • Heat Treatment Of Articles (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP92401975A 1991-07-15 1992-07-09 Procédé de réalisation d'une charge de rouleaux de matériaux compressibles Expired - Lifetime EP0524062B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9108863 1991-07-15
FR9108863A FR2679200B1 (fr) 1991-07-15 1991-07-15 Procede de realisation d'une charge de rouleaux de materiaux compressibles et dispositif de mise en óoeuvre.

Publications (3)

Publication Number Publication Date
EP0524062A1 EP0524062A1 (fr) 1993-01-20
EP0524062B1 EP0524062B1 (fr) 1995-12-06
EP0524062B2 true EP0524062B2 (fr) 1998-09-09

Family

ID=9415074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92401975A Expired - Lifetime EP0524062B2 (fr) 1991-07-15 1992-07-09 Procédé de réalisation d'une charge de rouleaux de matériaux compressibles

Country Status (8)

Country Link
EP (1) EP0524062B2 (es)
AT (1) ATE131122T1 (es)
DE (1) DE69206506T3 (es)
ES (1) ES2083121T5 (es)
FI (1) FI98903C (es)
FR (1) FR2679200B1 (es)
NO (1) NO303535B1 (es)
TR (1) TR27366A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1015523A3 (fr) 2003-05-22 2005-05-03 Knauf Insulation S A Paquets de rouleaux et leur procede de fabrication.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524683A (en) * 1984-01-09 1985-06-25 Parker Tobacco Company, Inc. Method of improving the handling of tobacco
FR2587682B1 (fr) * 1985-09-25 1987-12-18 Saint Gobain Isover Constitution de fardeaux d'isolants thermiques fibreux
EP0281658B1 (en) * 1987-03-13 1991-09-11 Gunze Limited Apparatus for pressing stack of signatures

Also Published As

Publication number Publication date
EP0524062A1 (fr) 1993-01-20
FI923230A0 (fi) 1992-07-14
NO922773L (no) 1993-01-18
DE69206506T2 (de) 1996-07-18
FR2679200B1 (fr) 1993-10-22
EP0524062B1 (fr) 1995-12-06
FI98903C (fi) 1997-09-10
FI98903B (fi) 1997-05-30
DE69206506T3 (de) 1999-05-27
ES2083121T5 (es) 1999-01-01
FI923230L (fi) 1993-01-16
TR27366A (tr) 1995-01-17
FR2679200A1 (fr) 1993-01-22
ES2083121T3 (es) 1996-04-01
ATE131122T1 (de) 1995-12-15
NO303535B1 (no) 1998-07-27
NO922773D0 (no) 1992-07-14
DE69206506D1 (de) 1996-01-18

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