WO2015149954A1 - Verfahren zur umformung eines flachbahnmaterials und vorrichtung - Google Patents
Verfahren zur umformung eines flachbahnmaterials und vorrichtung Download PDFInfo
- Publication number
- WO2015149954A1 WO2015149954A1 PCT/EP2015/050574 EP2015050574W WO2015149954A1 WO 2015149954 A1 WO2015149954 A1 WO 2015149954A1 EP 2015050574 W EP2015050574 W EP 2015050574W WO 2015149954 A1 WO2015149954 A1 WO 2015149954A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- holding
- matrices
- flat
- dies
- forming
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims abstract description 166
- 238000000034 method Methods 0.000 title claims description 29
- 238000007493 shaping process Methods 0.000 title claims description 8
- 238000005452 bending Methods 0.000 claims abstract description 38
- 238000000465 moulding Methods 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims description 19
- 238000010924 continuous production Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000004904 shortening Methods 0.000 claims description 3
- 241000251730 Chondrichthyes Species 0.000 claims description 2
- 230000008569 process Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011888 foil Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- 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
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/30—Tools secured to endless chains, e.g. toothed belts; combined with uniting the corrugated web to flat webs
- B31F1/305—Tools secured to endless chains, e.g. toothed belts; combined with uniting the corrugated web to flat webs with sets of interengaging tools each secured to endless chains
-
- 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
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D3/00—Making articles of cellular structure, e.g. insulating board
- B31D3/002—Methods for making cellular structures; Cellular structures
-
- 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
- B31F1/0006—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof
- B31F1/0009—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs
- B31F1/0019—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously
- B31F1/0022—Bending or folding; Folding edges combined with joining; Reinforcing edges during the folding thereof of plates, sheets or webs the plates, sheets or webs moving continuously combined with making folding lines
- B31F1/0025—Making the folding lines using rotary tools
Definitions
- the invention relates to a method for forming a flat sheet material and a device suitable for its implementation.
- the deformed flat web material should give a three-dimensional structure, as it can be advantageously used in the composite construction, in particular as a core material between two stable layers.
- US 2007/004576 A1 discloses a method with which such structures can be produced.
- flat web material is deformed with a plurality of forming rollers, which are getting wider in the direction of passage for further deformation.
- a continuously increasing deformation is achieved.
- the invention has for its object to provide an aforementioned method and a corresponding device with which problems of the prior art can be solved and it is particularly possible to reshape a flat web material well and practical.
- a flat web material in the initial state is largely flat or smooth and even. It can also be finely wavy, similar to a fine corrugated cardboard or the like it may also be pre-stamped along the later folded edges or pretreated in a similar manner, for example, with appropriate material weakenings by perforations or the like., It may also be grooved.
- the material is folded as a quasi-end product of the process in a regular, three-dimensional structure.
- a plurality of folds are provided along differently oriented fold lines, preferably with the fold lines running along a small number of directions, for example along two to a maximum of five directions.
- it may be a wave-shaped folding geometry, that is wavy in plan view instead of straight fold lines.
- the flat web material For forming the flat web material, it is inserted between a lower holding die and an upper holding die or they are created.
- These two holding matrices consist of flat material, ie originally flat material, and have crease lines, wherein these crease lines are identical in the two holding matrices and lie largely exactly above one another when they rest against the flat web material or enclose it between them.
- the holding matrices are advantageously made of identical material, which is advantageous but significantly stiffer than the flat web material to be formed.
- the flat material of the holding matrices can very often be bent or deformed and thereby, as will be explained, the flat sheet material with. Under certain circumstances, the fold lines can also be formed by hinges.
- the lower and / or upper holding die can be successively brought to the flat web material or brought together with this, but advantageously at the same time.
- a lower forming die from below and an upper forming die are brought from above onto the holding dies.
- the forming dies also consist of a flat material with predetermined bending lines.
- they may consist of a similar or the same material as the aforementioned holding matrices and along the bending lines in the manner of hinges or the like. be deformed frequently.
- the material is significantly more rigid, preferably by an increased material thickness, for example, twice to five times as thick.
- the holding matrices are largely or completely flat when they are brought to the flat web material or enclose it between them. They are also still advantageous if in a further step the forming dies are brought to the holding dies.
- the mold matrices can be introduced in succession, advantageously they are introduced simultaneously.
- the lower and the upper mold die have bending lines that correspond exactly to each other or exactly opposite each other.
- the molding dies are not flat when approaching the holding dies, but are erected by bending along the bend lines or have a shape that corresponds to or at least is similar to the three-dimensional structure to be created with the flat sheet material. At least part of the bending lines of the forming dies coincide with a part of the bending lines of the holding dies. These are advantageously those bending lines of the forming dies, which are oriented towards the holding dies or point towards them and can rest against them.
- the approach of the forming dies to the holding matrices or to the close-fitting composite of the two holding matrices with the flat web material to be deformed therebetween has the advantage that the folds on the flat web material with the fold lines are precisely defined by the holding matrices bearing the flat web material with the predetermined fold lines can be performed. Further, in deforming the holding dies, the forming dies may rub along it, and the material of the holding dies and the forming dies may be selected such that the surfaces are very smooth and the materials are dimensionally stable with some rigidity, particularly the forming die. Thus, a kind of defined and protected deformation of the flat web material can take place between the holding matrices, which is triggered and forced by the forming matrices.
- the forming dies retain their shape, namely as erected three-dimensional structure similar to the product to be produced with the flat web material.
- the holding matrices with the flat web material can be gradually brought into the shape of the molding dies between them gradually in the passage and thus also the flat web material to be formed.
- a plane located in the middle between the forming matrices that is to say a continuous plane, is not yet touched by the forming matrices, not even by their furthest protruding points or areas.
- the forming dies are moved ever closer to each other, with elevations of the forming dies along bend lines of one forming die engaging recesses along bend lines of the other forming die. In this case, elevations and depressions are always adjacent to one another or are formed in each case by two bending lines extending next to each other.
- the holding dies are deformed with the flat web material therebetween or placed in a corresponding shape, with elevations and depressions along the bending lines and thus also along the bending lines of the holding dies. ben or be formed.
- the fold lines of the flat web material along the bending lines and bend lines or the flat web material is folded here. Since the holding matrices along the fold lines are, so to speak, sharply kinked or folded, the holding matrices are precisely defined by the corresponding sharp edges or burrs and sharp folded fold lines are produced in the flat web material.
- the compression of the mold matrices toward each other with the composite of holding matrices and flat web material therebetween takes place gradually, as explained above, gradually becoming stronger.
- the matrices are advantageous in each case elongated.
- the compression of the molding dies can be carried out in a continuous process along a web or continuous web.
- a plurality of pressure means or deformation means arranged one behind the other along the track can be provided, which are preferably formed circumferentially.
- the pressure means may be rotating rollers, round brushes or band-like circulating pressure medium or deformation bands.
- a passage height between pressure means, which are arranged consecutively in the passage direction, can decrease, in particular by up to 15% of the passage height per pressure medium or band.
- the mold matrices intermesh or be pressed into each other, while they just cause the deformation of the holding matrices and their placement and the deformation and erection of the flat web material therebetween.
- the mold matrices may interlock 25% to 50% or even 75% of their height so that the total height of the array of forming dies, holding dies and flat sheet material is between 175% and 125% or even only 1 10% of the height of a single forming die ,
- the molding matrices can be relatively stiff or stable, also along the bending lines provided there, especially if they rest against the holding matrices.
- a vibrating device is provided or it is shaken to the arrangement, and that after bringing the forming dies to the holding dies to the touch. Furthermore, this should be done before the substantial deformation of the shark tematrices done, so for example, before they have reached 10% or 20% of their desired height of the finished structure of the flat web material.
- the holding matrices and / or the forming dies are not simply formed on a surface somehow, for example in the manner of press plates or the like, but as long tapes. It is advantageous peripheral strips, so almost endless belts.
- the length of these bands should be more than twice the length of the passageway for the flat web material to be formed, so that they can orbit at the beginning and at the end of this passageway of sufficiently large radius without being damaged.
- it can also lead to a substantial shortening, especially the holding matrices, for example by up to a factor of 2 to 10.
- a corresponding length to calculate is corresponding length to calculate.
- the advantage of such matrices in the form of bands or even circumferential bands is that longer pieces of the flat sheet material can be reshaped, even endless flat sheet material in circumferential bands. Furthermore, a continuous in-line process can be performed for high throughput and the best possible result of the regular, three-dimensional structure created from the flat web material.
- the bands of the holding matrices may extend directly adjacent to the through-path at the top and bottom, and in each case on the outside, however, the bands of the forming matrices run around the inside. In the case of circulating, closed endless belts of one of the dies or both dies, the bands of the holding dies can circulate around the bands of the forming dies or surround them.
- synchronization between the upper forming die and the lower forming die is possible. be taken.
- This can be considered as a continuation of the aforementioned synchronization of the holding matrices to each other and possibly to the flat web material.
- the aforementioned synchronization means may also be provided, advantageously via control motors or via rotating synchronization means or synchronization belts with an external shaping corresponding to the structure or shape of the molding die.
- a synchronization both Matrizen pairs and also the flat web material synchronized at once can also be synchronized individually. This can also mean that not even the matrices of a pair are synchronized at once. Thus, the process can be carried out very easily without large investment costs.
- lateral pressing means are provided on the side, in a continuous process preferably on the longitudinal sides of a continuous web of the flat web material, the holding matrices with the flat web material between them and / or the forming dies with the holding matrices and the flat web material between squeeze each other sideways.
- Such lateral pressing means can be constructed relatively simply compared to pressing means on the top or the bottom, namely, they need not have the form erected corresponding form. It may simply be inclined bands or closer arranged rear wheels or wheels and guides, preferably baffles or rails.
- the forming dies are first removed. Then an even stronger deformation can take place, especially between the holding dies. Thereafter or later, the holding matrices are then removed or removed. This can already be a few centimeters in a previously mentioned continuous process for example, 5 cm to 50 cm thereafter. By a separate detachment, however, the fact can be better taken into account that the forming dies are stiffer and thus behave somewhat differently than the holding dies.
- the generated three-dimensional structure in the flat web material is characterized in that it has elevations and depressions along fold lines, which are, so to speak, sharply folded or form acute angles, advantageously with an angle between 10 ° and 150 ° on both sides of the fold, especially advantageously between 20 ° and 120 °.
- the bend lines extend at ridges of the forming dies along crease lines of the holding dies and fold lines of the flat web material.
- the bend lines protrude along ridges as the only areas of the forming dies and abut against the retaining dies. This only applies to the projection in the plane of symmetry, the crease lines of molding dies on one side and holding dies or the flat sheet material on the other side do not all touch each other.
- engaging conveying means can be provided which promote the combination of holding matrices and flat web material not only along a passage path in the direction of passage, advantageously by means of a form fit, but also in the passage direction.
- This funding can be circumferential and have an outer structure or shape that can engage in the final shape of the flat web material in the final state as a three-dimensional structure.
- an aforementioned upsetting in width can also take place. Because the mold matrices are already removed at this time, which are difficult to deform in width and / or length, this deformation of the composite of holding matrices and flat web material between them can be done easily and with less force.
- in the flat web material only along two or three directions fold lines are generated. These two or three directions should then have an angle between 60 ° and 120 ° to each other, especially at acute angles, especially less than 45 °, should be avoided if possible. In this way, it is easy to produce a stable and advantageous three-dimensional structure from a flat web material at the same time. In the side view, it may be 20 ° to 90 °, in the plan view 10 ° to 150 °.
- the flat web material is at least in the final state as a three-dimensional structure in one layer.
- a flat web material may have a multilayer structure, for example for a higher material rigidity or to combine certain functional layers with one another.
- a multilayer structure for example for a higher material rigidity or to combine certain functional layers with one another.
- the material for the flat sheet material paper or the like material of fibers may be used.
- homogeneous films made of plastic can be used as well as metal foils.
- the thickness should be selected so that the flat web material can easily fold, so usual paper thickness or thickness and metal foils thicknesses below 0.2 mm.
- 1 is a schematic side view of an apparatus for forming a flat sheet material
- 2 shows a first embodiment of deformation bands as double conveyor belts with a constant distance from one another
- FIG. 3 shows a modification of the deformation bands as double conveyor belts from FIG. 2 with a distance decreasing in the direction of passage
- an inventive device 1 1 for forming a flat web material 12, which from a supply of material 13 in the form of a large roll or the like. comes.
- the flat web material 12 runs in the figure 1 from right to left through in the left and right dotted running plane D.
- the flat web material 12 may be one of the aforementioned, such as paper, but also thinner plastic than film material or thin sheet material, as metallic materials thin aluminum foil and composite materials. It may even, as mentioned above, be slightly wavy with a corrugation between 0.5mm and 3mm. After unwinding from the material supply 13, the flat web material 12 passes through an optionally provided embossing device 15.
- an optionally provided cutting device 16 which performs a cross section.
- the quasi endless running flat web material 12 can be separated into specific or desired lengths.
- the flat web material 12 may also be supplied in the form of individual sheets.
- one or two longitudinal cutting devices can also be provided in order to cut the flat web material 12 also in width.
- the flat web material 12 passes through a feed area 18.
- an upper holding die 20a and a lower holding die 20b are supplied simultaneously from above and below or symmetrically to the continuous plane D, alternatively also successively.
- These holding matrices 20 run around in large, largely dashed loops and are formed as previously mentioned endless belts.
- the holding matrices 20a and 20b can be brought to the flat web material 12 in a flat or smoothed form.
- corresponding smoothing means advantageously pressed together rollers, between the very left end of the device 1 1 and the supply area 18 may be provided.
- the holding matrices 20a and 20b in the supply area 18 should be largely flat or flat against the flat web material 12. This may possibly be something out of the flat shape transformed out.
- the upper forming die 30a and the lower forming die 30b are introduced. These are loop-like continuous endless belts with a largely punctiform represented course. In this case, corresponding guide devices or guide rollers, not shown here, are provided. Unlike the holding matrices 20a and 20b, the forming matrices 30a and 30b are not introduced in a substantially flat form, but, as shown, in an erected form, namely they advantageously change their shape only slightly, for example the aforementioned 2% to 15%. As will be shown in magnification below, the forming dies 30a and 30b bear against the outer sides of the holding dies 20a and 20b with their points facing each other or protruding areas.
- the composite of flat web material 12, adjacent thereto holding matrices 20a and 20b and in turn adjacent molding matrices 30a and 30b moves in a continuous process to the left and is guided into an optionally provided synchronization device.
- the matrices and the flat web material can also be synchronized one after the other. This can mean that the synchronization coincides with the feed area 18 and the matrices with the flat material are synchronized in pairs or else one after the other before another matrix or another pair of matrices is introduced.
- An additional synchronization is important or advantageous for the holding matrices with the material, so that the optional stamping lines coincide with the folding lines of the matrices.
- the synchronization can also by rollers, vibrators or the like.
- the design of the synchronization device shown here has an upper synchronization belt 41 a and a lower synchronization belt 41 b, which serve to the matrices synchronize with each other and bring into the corresponding desired relative position to each other and possibly to the flat web material, in particular the upper and the lower forming die 30a and 30b.
- the synchronization belts 41 a and 41 b may have protruding elevations or tips which engage in the outer sides of the forming dies 30a and 30b in such a positionally accurate or positionally correct manner that they can be positioned as desired relative to one another.
- the synchronization device 40 is followed by a vibrator device 43, which is also provided only as an option.
- This can be made of, for example, elastic pressure jaws or the like. exist, which not only further compress the composite, but also longitudinally and / or transversely to the direction of passage, the matrices 20a and 20b and 30a and 30b position each other.
- a slight deformation of the holding matrices 20a and 20b with the flat web material 12 may possibly already take place between them in accordance with bending lines in the holding matrices.
- an upper first deformation band 46a and a lower first deformation band 46b are reversed, as also shown in enlargement in FIGS. 2 and 3.
- Deformation belts 46a and 46b are substantially flat and press molding dies 30a and 30b towards each other as shown in enlargement there. They correspond to the pressure means mentioned above.
- the first deformation region 45 is adjoined by a so-called first contraction region 48, which, although optional, should be advantageously provided.
- first contraction region 48 which, although optional, should be advantageously provided.
- the bond between the first deformation region 45 and a subsequent second deformation region 50 is quasi braked and thereby compressed or shortened. This causes at the same time, as shown in the following illustrations, a stronger deformation of the flat web material and the holding matrices 20a and 20b by stronger setting or removal from the continuous plane D.
- the composite passes through a second deformation region 50, in which, similar to the first deformation region 45, an upper second deformation band 51 a and a lower second deformation band 51 b are provided.
- These may be formed identically to the deformation bands 46a and 46b of the first deformation region 45, but alternatively according to the other of the two basic possibilities of FIGS. 2 and 3.
- the Distance of the second deformation bands 51 a and 51 b to each other should also be slightly less than that of the first deformation bands 46 a and 46 b.
- a first lift-off area 53 can follow, in which the forming dies 30a and 30b are lifted off and thus removed from the holding dies 20a and 20b by respective removal, in which case aforementioned deflection rolls or the like. can be provided.
- a subsequent third deformation zone 55 upper and lower third deformation bands 56a and 56b are again provided, which hold and transport the holding dies 20a and 20b with the flat web material 12 between them, possibly deforming them.
- Behind the third deformation region 55 follows a fourth deformation region 60 with an upper fourth deformation band 61 a and a lower fourth deformation band 61 b.
- the areas 55 and 60 are deformation areas, but their main task is to ensure the speed difference by conveying the dies and the flat material at different speeds so that the contraction area 58 functions.
- a second contraction region 58 may be provided, in which the continuous composite is further decelerated and thus shortened and set up or deformed more.
- the area between 50 and 55 may additionally also be a contraction area.
- the deformation bands 56a and 56b and 61a and 61b can be largely flat on their upper side with a rubberized or good non-slip surface to grip and transport the respective outer holding matrices 20a and 20b good frictionally. Alternatively, elevations and / or recesses may be provided for a positive transport. While in the deformation regions 45 and 50, the external pressure on the composite was important because it caused a stronger reshaping of the holding matrices 20a and 20b with the flat web material 12 between them, the pressure in the deformation regions 55 and 60 should not be too great. otherwise he squeezes the holding matrices 20a and 20b with the flat web material 12 between them again. There may be other deformation areas or contraction stages follow, even after lifting the holding matrices.
- a second lift-off region 63 the holding dies 20 a and 20 b are lifted off or removed from the flat web material 12.
- the flat web material 12 may then have its final structure or shape, as can be seen in Fig. 1 far left, and for which reference is also made to FIGS. 4 to 13.
- a cutting device 65 may possibly once again be provided, in particular if at the beginning no cutting device is provided. hen is. Otherwise, the deformed flat web material 12 'can be transported further for a use mentioned above, in particular for component in sandwich construction. Under certain circumstances, however, a further deformation of the flat web material 12 can generally take place even after the holding matrices have been lifted off, for example by being compressed in the length and pressed in the width. As another possibility, a curing area, an annealing range or the like. consequences.
- FIG. 2 shows in enlargement a first possible embodiment of the first deformation region 45 with upper first deformation band 46a and lower first deformation band 46b.
- the first deformation bands 46a and 46b have a uniform spacing over their length and thus press against the outer ridges 34a and 34b of the upper molding die 30a and the lower molding die 30b, respectively.
- This causes the right-made composite of flat strip material 12, holding matrices 20a and 20b is compressed even more strongly, namely right at the beginning of entering the first deformation region 45 and between the first deformation bands 46a and 46b and also in the second deformation region 50th with the bands 51 a and 51 b.
- the distance between the upper and lower deformation bands can again be somewhat smaller than shown here.
- the mutually facing sides of the upper first deformation band 46a and the lower first deformation band 46b do not run parallel to one another but their spacing decreases slightly in the direction of passage from right to left, advantageously by 1% to 5% or even 15%. , The clearance height is simply lower.
- the burrs 34a and 34b of the forming dies 30a and 30b bear on the first deformation bands 46a and 46b.
- the subsequent deformation region is formed as well as the first deformation region 45 'shown here in Fig. 3, ie for a uniform deformation starting almost at zero.
- the combination of the deformation regions, as shown in FIGS. 2 and 3, has not been explicitly sketched but is also conceivable. It is to be illustrated in FIGS. 4 to 6 in three steps how the deformation ultimately of the flat web material 12, but also of the holding matrices 20a and 20b, by the forming matrices 30a and 30b becomes ever stronger. In Fig.
- the x-direction is in the x-direction, which is transverse to the direction of passage through the device 1 1, yet no significant deformation of the flat web material 12 and the voltage applied to it holding matrices 20a and 20b recognizable.
- a first deformation is already clearly visible, so that the composite of flat material 12 and holding matrices 20a and 20b is slightly waved in this direction.
- a deformation in the y-direction always goes with a deformation in the x-direction, but they are possibly pronounced differently strong.
- the x-direction is longitudinal to the direction of passage.
- fold lines 14 and 14 'of the flat web material 12 are already shown here for clarity, as well as buckling lines 22a and 22b of the holding matrices 20a and 20b.
- the forming dies 30a and 30b have ridges 34a and 34b in mutually projecting directions with corresponding recesses 36a and 36b facing each other. These are each formed by bending lines 32a and 32b.
- the depressions 36a and 36b with their relatively sharp edges corresponding to the ridges 34a and 34b, press into the composite of flat web material 12 and holding dies 20a and 20b. It can be seen how the depressions 36a and 36b extend exactly along corresponding fold lines 22a and 22b of the holding matrices 20.
- FIG. 5 a stronger deformation of the flat web material 12 together with holding matrices 20a and 20b is effected by stronger compression, and now also clearly recognizable in the x-direction along the fold lines 14 and 14 'of the flat web material 12 or along corresponding fold lines 22 of FIG Holding dies 20a and 20b.
- the forming dies 30a and 30b with the depressions 36a and 36b lie linearly only along fold lines 22a and 22b of the holding dies 20a and 20b.
- Fig. 6 an even stronger deformation is shown.
- the composite of flat web material 12 and retaining matrices 20a and 20b has the same thickness and deformed to the same extent, the molding dies 30a and 30b itself but hardly. Under certain circumstances, in this state, lifting off of the molding dies 30a and 30b could already take place as in the first lift-off region 53 of FIG. Alternatively, however, an even stronger reshaping can take place. In the aforementioned case, the composite of flat web material 12 and retaining matrices 20a and 20b can be deformed more strongly only by further shortening and upsetting with stronger setting up of the deformed flat web material 12 '.
- FIGS. 7 to 13 show various possible embodiments of the formed flat web material 12 '.
- On the left is an isometric view, then is a top view from above, then a partial side view and finally the right a flat folding pattern of a quasi-single cell.
- the embodiments of FIGS. 7 to 9 are essentially characterized by zig-zag patterns of the fold lines 14, which respectively form burrs and depressions.
- Figs. 10 and 11 these are patterns with multiple kinks along burrs and depressions on the fold lines 14, namely with a total of three instead of two directions.
- the angles are each about 135 ° in Fig. 10 and about 90 ° and 135 ° in Fig. 1 1.
- the angle ⁇ is approximately 45 ° to 120 ° and the angle ⁇ is approximately 15 ° to 90 °.
- FIG. 12 there are only two directions, but these correspond more to an embodiment according to FIG. 10, each with a right angle to the individual folds of the fold lines of the ridges and depressions.
- the fold lines and thus also the ridges and depressions are not straight pieces or sections but are curved or have a continuous wave course, as mentioned in the beginning.
- the generation of bending lines 22 in the holding dies 20 or bending lines 32 in the forming dies 30 may be somewhat more complicated, this is also possible and conceivable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Making Paper Articles (AREA)
- Advancing Webs (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020167030456A KR20160138286A (ko) | 2014-03-31 | 2015-01-14 | 평탄한 웹 재료의 성형 방법 및 장치 |
JP2016560427A JP2017514723A (ja) | 2014-03-31 | 2015-01-14 | ウェブ材を成形加工するための方法及び装置 |
US15/301,065 US20170028667A1 (en) | 2014-03-31 | 2015-01-14 | Method for shaping a flat web material, and device |
EP15700664.4A EP3126131B1 (de) | 2014-03-31 | 2015-01-14 | Verfahren zur umformung eines flachbahnmaterials und vorrichtung |
CN201580018156.5A CN106536180B (zh) | 2014-03-31 | 2015-01-14 | 用于成形平坦幅面材料的方法和装置 |
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DE102014206083.4A DE102014206083A1 (de) | 2014-03-31 | 2014-03-31 | Verfahren zur Umformung eines Flachbahnmaterials und Vorrichtung |
DE102014206083.4 | 2014-03-31 |
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WO2015149954A1 true WO2015149954A1 (de) | 2015-10-08 |
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PCT/EP2015/050574 WO2015149954A1 (de) | 2014-03-31 | 2015-01-14 | Verfahren zur umformung eines flachbahnmaterials und vorrichtung |
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EP (1) | EP3126131B1 (de) |
JP (1) | JP2017514723A (de) |
KR (1) | KR20160138286A (de) |
CN (1) | CN106536180B (de) |
DE (1) | DE102014206083A1 (de) |
WO (1) | WO2015149954A1 (de) |
Cited By (1)
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WO2021122197A1 (en) | 2019-12-18 | 2021-06-24 | Low & Bonar B.V. | Material comprising connecting means |
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CN109941751B (zh) * | 2019-02-28 | 2024-10-22 | 昆山东威科技股份有限公司 | 电路板的输送结构及其电镀设备 |
US11965465B2 (en) | 2020-12-22 | 2024-04-23 | Rohr, Inc. | Acoustic panel with multiple layer corrugated core |
US11715450B2 (en) | 2020-12-22 | 2023-08-01 | Rohr, Inc. | Acoustic panel core cell with funnel shaped septum |
US11869472B2 (en) | 2021-08-02 | 2024-01-09 | Rohr, Inc. | Acoustic panel with reconfigurable chamber constrictions |
US12319425B2 (en) | 2022-01-04 | 2025-06-03 | Rohr, Inc. | Multi-core acoustic panel for an aircraft propulsion system |
US12163472B2 (en) | 2022-09-02 | 2024-12-10 | Rohr, Inc. | Engine exhaust nozzle with acoustic attenuation |
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- 2015-01-14 WO PCT/EP2015/050574 patent/WO2015149954A1/de active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
KR20160138286A (ko) | 2016-12-02 |
JP2017514723A (ja) | 2017-06-08 |
CN106536180A (zh) | 2017-03-22 |
CN106536180B (zh) | 2019-03-19 |
EP3126131A1 (de) | 2017-02-08 |
US20170028667A1 (en) | 2017-02-02 |
EP3126131B1 (de) | 2018-03-14 |
DE102014206083A1 (de) | 2015-10-01 |
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