EP1299282A1 - Epaulement de fa onnage et dispositif pour produire des bandes fa onnees longitudinalement - Google Patents

Epaulement de fa onnage et dispositif pour produire des bandes fa onnees longitudinalement

Info

Publication number
EP1299282A1
EP1299282A1 EP01957697A EP01957697A EP1299282A1 EP 1299282 A1 EP1299282 A1 EP 1299282A1 EP 01957697 A EP01957697 A EP 01957697A EP 01957697 A EP01957697 A EP 01957697A EP 1299282 A1 EP1299282 A1 EP 1299282A1
Authority
EP
European Patent Office
Prior art keywords
web
shoulder
section
edge
prism
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Withdrawn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
EP01957697A
Other languages
German (de)
English (en)
Inventor
Henry Drut
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.)
GVL Gesellschaft fur Verpackungstechnik und logistik mbH
Original Assignee
GVL Gesellschaft fur Verpackungstechnik und logistik mbH
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 GVL Gesellschaft fur Verpackungstechnik und logistik mbH filed Critical GVL Gesellschaft fur Verpackungstechnik und logistik mbH
Publication of EP1299282A1 publication Critical patent/EP1299282A1/fr
Withdrawn legal-status Critical Current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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B29C53/52—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively using external forming surfaces, e.g. sleeves
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • B65B9/2021—Tube advancing means combined with longitudinal welding devices
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • B65B9/2028—Rollers or belts
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/213—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web having intermittent motion
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/22—Forming shoulders; Tube formers
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/12—Creating additional longitudinal welds on horizontal or vertical form fill seal [FFS] machines for stiffening packages or for creating package edges

Definitions

  • the invention relates to a shaped shoulder and a device for producing longitudinally shaped webs with an open or closed cross section and at least one area inside the web in which the cross section is curved outwards.
  • These are, for example, tubular bags with longitudinal folds, tubular bags with one or more chambers produced by subdivision in the longitudinal direction, and longitudinally corrugated webs.
  • shaped shoulders for shaping a flat sheet of packaging material into a longitudinally shaped sheet, a prism, which is closed in the longitudinal direction by an overlap seam or a fin seam. These closed prisms are called tubes.
  • the level web is drawn off from the roll to over the form shoulder via take-off elements. Seen in the direction of web travel, these are located behind the form shoulder.
  • Welding or sealing elements such as welding bars or sweat bands running along with the hose are used to close the longitudinal seam.
  • the packaged goods are brought into the hose, for example, through a filling tube protruding into the hose.
  • a cross-sealing or cross-sealing element then closes the bag, the bottom seam of the following bag being formed at the same time.
  • the transformation from the flat path to the prismatic cross-section takes place essentially on a spatial line on the form shoulder, the so-called forming edge.
  • the area of the form shoulder from the level web inlet in the web running direction to the forming edge is referred to as the shoulder part, the area from the forming edge to the outlet of the hose is the prism part.
  • the web is partially or completely in contact with the surface of the shoulder and is curved towards the forming edge.
  • the web is guided in the prism part through the forming edge as well as through the web take-off element from outside the tube and the molded tube inside the tube.
  • the shaped tube can also be the outer jacket of a filling tube.
  • the prisms or tubes have various cross-sectional shapes. They have in common that they are always curved inwards over the entire circumference, i. that is, their inside angles are always less than or equal to 180 degrees. Seen along the direction of web travel, the forming edge, starting from the point of the first forming of the web towards the web edge, is always curved with increasing or constant inclination in the direction of the hose outlet, i. that is, the curvature of the forming edge tends to run out of the hose.
  • the shoulder surface belonging to the forming edge is defined by a family of straight lines extending from the forming edge and extending to the web edge (DD 237 289, DE 195 39 830). Starting from the web inlet, this surface is always curved in the direction of the hose outlet.
  • the shaping of the form shoulder must be even, i.e. that is, the surface of the shaped shoulder must be designed so that it can be developed in the plane (DD 237 289, DD 147 652). This is the prerequisite for forming the web without wrinkling or for the formation of cracks.
  • a device for producing sealed edge bags is known from US Pat. No. 4,514,965.
  • the cross section of the web is curved outwards for the seam formation.
  • the pulling off of the web at the fin seam by means of take-off rollers is typical for horizontal tubular bag machines.
  • Prism shapes with internal angles greater than 180 degrees, such as z. B. are used in hoses with stabilizing fold, are subsequently formed by additional shaped elements that are attached to the filling tube and / or on the outside of the prism.
  • Another disadvantage of this method is the long molding path, since the molding shoulder and the fold-forming elements lie one after the other when viewed in the hose transport direction. This increases the size of the machine and the height of the product and thus damage to the product during the filling process.
  • a pulling force can only attack the outside of the hose, e.g. B. by means of an intermittently moving suction ring or by means of a suction belt.
  • friction bands are also used.
  • the different coefficients of friction between a rubberized extraction belt and the outside of the hose on the one hand and a polished molded tube and the inside of the hose on the other are used.
  • Machines for forming a double hose are also generally known.
  • the outer edges of the web are turned over by means of a shaped shoulder so that they meet again in the middle of the web and can be welded to one another or to the center of the web.
  • the result is two flat tubes into which flat packaged goods, for example tea bags, are inserted mechanically.
  • flat packaged goods for example tea bags
  • the widening of the pair of tubes would amount to an uneven deformation and would have the above-mentioned disadvantages of creasing or cracking.
  • the method of producing a plurality of flat bags running parallel to one another through the machine is also generally known.
  • two webs that run towards one another from the opposite direction are welded or sealed in the longitudinal direction after the meeting, so that a chain is formed transversely to the transport direction, and hoses lying parallel to one another, or a bag with a plurality of chambers that are separated along the transport direction.
  • the shaping is carried out by running the web against flat filling tubes projecting between the longitudinal welding devices. The forming is not done in this way. While largely avoiding wrinkles and creases, it is only possible if the hoses are not opened wide. The hoses remain very flat so that they cannot be filled optimally.
  • the object of the invention is to provide a shaped shoulder and a device for producing a longitudinally shaped web with open or closed cross-section and at least one area inside the web, in which the cross-section is curved outwards for the production z.
  • the object is achieved by a shaped shoulder according to claim 1 and by a device according to claim 6. Further refinements of the invention include the features of claims 2 to 5 and 7 to 8.
  • the shaped shoulder according to the invention consists of one or more shoulder parts and a prism part, which meet at a spatial forming edge, with regions of the prism part that are curved inwards, the forming edge sections belonging to these regions, as viewed from the center of the path to the path, increasing in curvature
  • the direction of the web and the corresponding areas of the shoulder part are curved to the hose outlet.
  • inwardly curved areas of the prism part alternate with outwardly curved ones, the outward curvature always serving to expand the cross-section and then inward curving to close the cross-section and that the forming edge and the corresponding shoulder parts follow that in the manner described.
  • Those areas of the forming edge which belong to outwardly curved areas of the prism part and which are not in the vicinity of the web edge but rather in the interior of the web tend, according to the invention, to curvature counter to the web running direction, and the associated shoulder areas are curved away from the hose outlet.
  • inwardly curved regions of the prism part alternate with outwardly curved regions.
  • those areas of the forming edge which belong to outwardly curved areas of the prism part and which are not in the vicinity of the web edge but rather in the interior of the web tend, according to the invention, to curvature opposite to the web running direction, the associated shoulder areas are curved away from the outlet of the shaped web.
  • the web support in the shoulder area can be designed so that individual shoulder parts are located on both sides of the web. They support the path in the direction of curvature prevailing in this section. These shoulder pieces are designed to reduce friction. For example, they can be designed as a roller.
  • the inventive shoulders result in overlapping hose areas, e.g. B. folds or several seam areas.
  • the hose can be pulled off by applying the pulling force to these overlapping areas. This can now be done very easily using intermittently moving clamp grippers or one or more pairs of rollers. This considerably reduces the technical effort for designing the hose outlet.
  • the trigger elements can be controlled with different speeds (pairs of rollers) or different trigger paths (grippers).
  • Fig. 1 Form shoulder for forming a tube with four stabilizing folds in a perspective view
  • Fig. 2 Form shoulder for forming a hose with four stabilizing folds in plan view
  • Fig. 3 Formed shoulder for forming a hose with four stabilizing folds in the plane
  • Fig. 5 Form shoulder for forming a tube with three stabilizing folds and a fourth stabilizing fold serving as a longitudinal seam in three views and in the unwound state
  • Fig. 6 Form shoulder for forming a tube with four stabilizing folds with a tube cross section rotated by 45 degrees in three views and in the unwound state
  • Fig. 7 Form shoulder for forming a double hose in three views and in the developed state
  • Fig. 8 Form shoulder for forming a parallel hose chain in three views and in the developed state
  • FIG. 9 shaped shoulder from FIG. 5 with several shoulder parts
  • Fig. 10 Form shoulder from Fig. 1 to 4 with a hose extraction device
  • FIG. 1 to 4 show a shape shoulder for forming a tube with four stabilizing folds in a perspective view (Fig.l), in a top view (Fig. 2), in a plane developed in the plane (Fig.3) and enlarged sections of Fig. 2 and Fig. 3.
  • the xyz coordinate system and the circumferential coordinate u facilitate orientation on the shape shoulder.
  • the shaped shoulder (1) consists of a shoulder part (2) and a prism part (3). They are connected at the forming edge (5). Viewed in the direction of web entry (10), the web moves from the web inlet (4) on the shoulder part (2) over the shoulder part (2) to the forming edge (5) and from there in the hose transport direction (11) along the prism part (3) to the hose outlet (6) , The web edge (7) runs at the outer boundary of the shoulder part (2).
  • the area of the shoulder part (2) in contact with the web is defined by straight lines which extend from the forming edge (5) to the web edge (7), the shoulder edges (8).
  • the distance between two shoulder edges (8) is incrementally small.
  • a number of shoulder edges (8) are always shown by way of example in FIGS. 1 to 9.
  • the prism surface area of the hose is defined by straight lines, which extend from the forming edge (5) parallel to the hose transport direction, the prism edges (9).
  • the distance between two prism edges (9) is incrementally small.
  • a number of prism edges (9) are always shown by way of example in FIGS. 1 to 9.
  • the angle by which the web is curved at the prism edges (9) is called the prism inner angle d.
  • the internal prism angles d are numbered in Fig. 4 corresponding to the prism edges (9) starting in the middle of the web and increasing to the web edge (7).
  • the forming edge (5) is curved.
  • the angle by which the forming edge (5) is curved there is called the forming edge angle ⁇ .
  • the forming edge angle g in Fig. 3 and 4 are numbered corresponding to the prism edges (9) starting in the middle of the web and increasing to the web edge (7).
  • the forming edge curvature angle g should be defined positively. If the forming edge (5) is bent away from the hose outlet (6), that is, against the hose transport direction (11), then the forming edge angle of curvature g is defined negatively.
  • the prism cross-sectional planes (12) are those planes on the prism part (3) that run parallel to the base surface of the prism part (3).
  • Fig. 2 the cross-section of the rectangular tube to be formed with 4 stabilizing folds or the top view of the forming edge (5) can be seen.
  • the circumferential line (coordinate u - Fig. 3) follows the projection of the forming edge (5) in the xy plane, starting from the center of the web to the web edge (7).
  • the forming edge (5) according to FIGS. 2 and 3 is divided into several sections (21-29), each of which has a plurality of prism edges (9) (starting from the forming edge section 21 and counted in FIG. 2 -4 unspecified) include, divided and labeled. This results in the following assignments:
  • Forming edge section 21 lies between prism edges 1 and 2
  • Forming edge section 22 lies between prism edges 2 and 8
  • Forming edge section 23 lies between prism edges 8 and 9
  • Forming edge section 24 lies between prism edges 9 and 11
  • Forming edge section 25 lies between prism edges 11 and 12
  • Forming edge section 26 lies between prism edges 12 and 14
  • forming section lies between prism edges 14 and 15
  • edge section 28 lies between prism edges 15 and 21 forming edge section 29 lies between prism edge 21 and web edge (7)
  • the dimension b denotes the width and the dimension t the depth of the hose cross section to be formed.
  • the width of the fold to be formed is measured at the corners of the hose with f.
  • the forming edge (5) or the circumferential line in section (21) only extends by half the hose width b / 2 plus the fold width f in the y direction.
  • it bends in a bend by 180 degrees to the center of the hose.
  • it continues towards the center of the palm.
  • the circumferential line bends up by 90 degrees.
  • the circumferential line bends up another 90 degrees.
  • the peripheral edge (5) in turn turns 180 degrees to the center of the web out.
  • the peripheral edge (5) extends in this direction further to the seam formation area or to the web edge (7). 1 to 4, the seam lies in the middle of the tube.
  • Sections 21, 22, 23 and 24 and sections 26, 27, 28 and 29 each form a stabilizing fold area (13).
  • FIGS. 3 and 4 shows in the upper representation an enlarged section from FIG. 2 and in the lower representation an enlarged section from FIG. 3 in each case of the stabilizing fold region (indicated by dashed lines in FIGS. 2 and 3), which is formed by sections 21 to 24 ,
  • the prism inner angle d3 at the prism edge number 3 is less than 180 degrees, the forming edge curvature tends towards the hose outlet (6).
  • the forming edge curvature angle g3 is directed positively according to the prior art.
  • the prism inner angle dll at the prism edge number 11 is greater than 180 degrees, the forming edge curvature tends according to the invention against the hose outlet (6).
  • the contour curvature angle gl1 has been chosen negative according to the invention.
  • the negative forming edge reflection angle can be recognized particularly clearly by the prism edge number 13, at gl 3 (FIG. 3).
  • the shoulder surface is designed in such a way that the shoulder is curved in the direction of the hose outlet in areas in which the forming edge critical angle g is positive. According to the invention, it is curved away from the hose outlet in areas in which the forming edge curvature angle g is negative (FIG. 2).
  • 5 shows another variant of a shaped shoulder according to the invention for producing a hose with stabilizing folds in four different views.
  • the cross section of the prism part (3) has three stabilizing fold areas (13).
  • the longitudinal seam (14) forms a fourth stabilizing fold.
  • the formation of the prism part (3), the forming edge (5) and the shoulder part (2) in the stabilizing fold area (13) takes place analogously to the shape shoulder in FIGS. 1 to 4.
  • an outward curvature of the is also carried out here section. However, this curvature is close to the web edge and thus corresponds to the state of the art.
  • This longitudinal seam shape is referred to as the fin seam.
  • FIG. 6 A further variant of a shaped shoulder (1) according to the invention for producing a hose with stabilizing folds is shown in 4 different views in FIG. 6.
  • Three stabilizing fold areas (13) are arranged in relation to the longitudinal seam (14), which also serves as a stabilizing fold, in such a way that a symmetrical shaped shoulder is created , Forming edge (5) and shoulder part (2) in the stabilizing fold area (13) are formed analogously to the shape shoulder in FIGS. 1 to 4.
  • the statements made in the previous paragraph apply to the longitudinal seam (14).
  • Fig. 7 shows a shape shoulder (1) for producing a double tube from only one film web in 4 different views.
  • the prism part (3) belonging to the center of the web its cross section extends transversely to the web entry direction (10) in order to curl outwards in the region (20) adjoining on both sides according to the invention.
  • the curvature of the areas of the formed edge (5) and shoulder part (2) corresponding to this area (20) takes place analogously to the manner described in accordance with the invention. This creates a wide opening of the hose that is created on both sides.
  • the regions of the prism part (3) adjoining this in the direction of the web edge are curved inwards in a known manner and close the cross section of the two tubes.
  • the web edges are joined to the web areas inside the web, or here with the center of the web (sealed, welded). For this purpose, the web is dimmed in the vicinity of the web edge according to the state of the art.
  • a particular advantage of this solution is the simultaneous production of two tubes with a wide opening, which makes this solution applicable for many packaging tasks.
  • the output can be doubled at a constant working speed and thus constant product stress.
  • Fig. 8 shows a shape shoulder for forming a parallel hose chain in 4 different views.
  • the prism part (3) is curved in some areas starting from the middle of the web and, after closing a cross section and forming the seam, is curved outwards again according to the invention. This creates the cross section of a parallel hose chain or a hose cross section with several chambers in the longitudinal direction.
  • Forming edge (5) and shoulder part (2) are designed according to the invention in the outwardly curved regions of the prism part (3).
  • FIG. 9 shows the asymmetrical shape shoulder with stabilizing folds according to FIG. 5.
  • a molded tube (30) is drawn in for additional support of the hose inside.
  • two additional shoulder parts (31) are attached to support the web in accordance with one embodiment of the invention. They are located above the web and support those areas of the web that are curved against the hose outlet.
  • the additional shoulder parts (31) are attached to the molded tube (30) in this example.
  • a shape shoulder according to Fig. 1 to 4 is drawn. The web runs from the web roll (34) into the form shoulder (1) and is formed there into a tube with stabilizing folds.
  • web take-off elements are attached below the forming edge, which clamp the web in overlapping areas of the tube cross-section (stabilizing folds, longitudinal seams).
  • the web take-off elements can be designed as clamping grippers. In this case, the web is pulled off intermittently due to the joint downward movement of the clamping grippers.
  • pairs of rollers (33) are arranged in the area of the overlaps, which press against each other from one side of the overlap area of the web, each roller being driven. The web deduction takes place here continuously.
  • the advantage of this embodiment of the invention lies in the technically simpler handling of the web compared to tubular bag machines according to the prior art.
  • the pairs of rollers can be driven at different speeds.
  • the trigger members can be designed as a welding member at the same time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

L"invention concerne un épaulement de façonnage et un dispositif pour produire des bandes façonnées longitudinalement, qui présentent une section ouverte ou fermée et au moins une zone à l"intérieur de la bande, dans laquelle la section est courbée vers l"extérieur. Ce dispositif permet de produire par exemple des sachets tubulaires à plis longitudinaux, des sachets tubulaires comportant une ou plusieurs chambres formées par une division dans le sens longitudinal, ainsi que des bandes ondulées longitudinalement. L"épaulement de façonnage comprend une ou plusieurs parties épaulement (2) et une partie en forme de prisme (3) qui se rejoignent au niveau d"une arête de façonnage tridimensionnelle (5). Des zones de la partie en forme de prisme sont courbées vers l"extérieur. La courbure des parties de l"arête de façonnage appartenant à ces zones, vu du milieu de la bande vers l"arête de cette dernière, tend dans une direction opposée à la direction de déplacement de la bande, et les zones correspondantes de la partie épaulement sont courbées en s"éloignant de la sortie du tube.
EP01957697A 2000-06-28 2001-06-27 Epaulement de fa onnage et dispositif pour produire des bandes fa onnees longitudinalement Withdrawn EP1299282A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10032551A DE10032551B4 (de) 2000-06-28 2000-06-28 Formschulter und Vorrichtung zur Herstellung von längsgeformten Bahnen
DE10032551 2000-06-28
PCT/DE2001/002404 WO2002000502A1 (fr) 2000-06-28 2001-06-27 Epaulement de façonnage et dispositif pour produire des bandes façonnees longitudinalement

Publications (1)

Publication Number Publication Date
EP1299282A1 true EP1299282A1 (fr) 2003-04-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01957697A Withdrawn EP1299282A1 (fr) 2000-06-28 2001-06-27 Epaulement de fa onnage et dispositif pour produire des bandes fa onnees longitudinalement

Country Status (5)

Country Link
US (1) US6845602B2 (fr)
EP (1) EP1299282A1 (fr)
AU (1) AU2001279554A1 (fr)
DE (1) DE10032551B4 (fr)
WO (1) WO2002000502A1 (fr)

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WO2002000502A1 (fr) 2002-01-03
DE10032551B4 (de) 2004-06-03
US6845602B2 (en) 2005-01-25
AU2001279554A1 (en) 2002-01-08
US20030104096A1 (en) 2003-06-05
WO2002000502A9 (fr) 2002-09-19
DE10032551A1 (de) 2002-01-24

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