WO2014131667A1 - Machine automatique pour fournir des éléments type tôle ondulée - Google Patents

Machine automatique pour fournir des éléments type tôle ondulée Download PDF

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Publication number
WO2014131667A1
WO2014131667A1 PCT/EP2014/053211 EP2014053211W WO2014131667A1 WO 2014131667 A1 WO2014131667 A1 WO 2014131667A1 EP 2014053211 W EP2014053211 W EP 2014053211W WO 2014131667 A1 WO2014131667 A1 WO 2014131667A1
Authority
WO
WIPO (PCT)
Prior art keywords
abutment elements
conveyor
elements
upper abutment
guiding
Prior art date
Application number
PCT/EP2014/053211
Other languages
English (en)
Inventor
Fabio Angelo Gritti
Original Assignee
Interwave S.R.L.
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 Interwave S.R.L. filed Critical Interwave S.R.L.
Publication of WO2014131667A1 publication Critical patent/WO2014131667A1/fr

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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
    • B31F1/29—Making webs in which the channel of each corrugation is transverse to the web feed by making use of rods, e.g. co-operating with a toothed cylinder combined with uniting the corrugated web to flat webs
    • 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

Definitions

  • the present invention relates to a machine for providing corrugated sheet-like elements.
  • the conventional machines generally comprise two chain conveyors, or formers, which move a plurality of transverse vanes, or bars, along a closed path.
  • Such vanes can be rigidly fixed to the conveyor, or they can be applied so as to be able to oscillate with respect to it.
  • the transverse vanes of each conveyor make up a kind of comb.
  • the vanes of a conveyor face, in the work region (or forming region) of the corrugated sheet-like element, the vanes of the other conveyor, interleaving with them.
  • the sheet-like element is thus pushed by the vanes of the two conveyors which, mutually interleaving, press the sheet-like element thus creating the typical "wave" deformation of the element.
  • Such conventional machines also comprise means for bonding the corrugated sheet-like element thus obtained, to one or more other flat sheet- like elements, at the peaks of the formed corrugations, in order to provide a compound structure.
  • the vanes of conventional machines have a limited length, or a very great pitch, and thus they do not make it possible to make corrugations with a depth that is greater than or equal to that pitch, also taking into account the space necessary for the passage of the material, i.e. of the ribbon or of the slab, between the vanes, in the meshing step.
  • the aim of the present invention consists in providing a machine for providing corrugated sheet-like elements that solves the technical problem mentioned above, eliminates the drawbacks and overcomes the limitations of the known art by making it possible to form corrugated sheet-like elements with deep corrugations.
  • an object of the present invention is to provide a machine for providing corrugated sheet-like elements that makes it possible to create corrugations with a vertical extension at least equal to, or even greater than, the pitch of those corrugations.
  • Another object of the invention consists in providing a machine for providing corrugated sheet-like elements that solves the problem of the oscillations and uncontrolled flapping of the oscillating vanes of conventional machines.
  • Another object of the invention consists in providing a machine for providing corrugated sheet-like elements that can be adapted as needed to form corrugated sheet-like elements with different profiles.
  • Another object of the invention consists in providing a machine for providing corrugated sheet-like elements that is capable of offering the widest guarantees of reliability and safety of use.
  • Another object of the invention consists in providing a machine for providing corrugated sheet-like elements that is easy to implement and economically competitive in comparison to the known art.
  • an automatic machine for providing corrugated sheet-like elements comprising means for the continuous corrugation of a band that is moving in a longitudinal direction, said corrugation means comprising an upper conveyor and a lower conveyor, said upper conveyor comprising a plurality of upper abutment elements that extend transversely to said longitudinal direction of motion of said ribbon, said lower conveyor comprising a plurality of lower abutment elements that extend transversely to said longitudinal direction of motion of said ribbon, said upper abutment elements being interleaved with said lower abutment elements in a work region, characterized in that it comprises anticipating means in order to anticipate, at the inlet to said work region, the inclination of said upper abutment elements with respect to a direction that is perpendicular to the tangent of the path followed by said upper conveyor, and delay means, in order to delay, in output from said work region, the inclination of said upper abutment elements with respect to a direction
  • Figure 1 is a perspective view of an embodiment of a machine for providing corrugated sheet-like elements, according to the invention
  • Figure 2 is a schematic side elevation view of the machine for providing corrugated sheet-like elements in Figure 1, according to the invention
  • FIGs 3 to 7 show the same schematic view as Figure 2, in which only some components of the machine for providing corrugated sheet-like elements are shown according to the step of formation of the corrugation; in particular:
  • Figures 3 and 4 show two successive instants of the initial step of meshing of the ribbon for the forming of the corrugations, while Figures 3a and 4a show an enlarged portion respectively of Figures 3 and 4;
  • Figures 5, 6 and 7 show three successive instants of the final step, of releasing the ribbon, once the corrugations have been formed.
  • the machine for providing corrugated sheet-like elements comprises means 3 for the continuous corrugation of a ribbon 5 that moves in a longitudinal direction.
  • the corrugation means 3 comprise an upper conveyor 7 and a lower conveyor 9.
  • the upper conveyor 7 comprises a plurality of upper abutment elements 70 that extend transversely to the longitudinal direction of motion of the band 5.
  • the lower conveyor 9 comprises a plurality of lower abutment elements 90 that extend transversely to the longitudinal direction of motion of the band 5.
  • the upper abutment elements 70 interleave with the lower abutment elements 90 in a work region 11 , where the corrugations of the band 5 are formed.
  • the machine for providing corrugated sheet-like elements 1 comprises:
  • Each lower abutment element 90 of the lower conveyor 9 is advantageously formed by a bar 91 that can be extracted from a container body 92 which is supported and moved by the lower conveyor 9.
  • the upper conveyor 7 can advantageously comprise an upper chain
  • the upper abutment elements 70 are advantageously pivoted to the links of the upper chain 71 by way of hinges 75.
  • Each upper abutment element 70 can advantageously comprise a vane 78 for abutment with the band 5.
  • the vane 78 is the part of the upper abutment element 70 that physically comes into contact with the band 5, contributing, together with the lower abutment elements 90, to its deformation and to its transport along the longitudinal direction of motion.
  • the upper chain 71 is supported by a pair of sprockets 76 and 77, and unwinds continuously on them.
  • the first sprocket 76 is arranged at the inlet 110 of the work region 11
  • the second sprocket 77 is arranged at the exit 111 of the work region 11.
  • the anticipating means 13 comprise an anticipating cam 130.
  • the upper abutment elements 70 comprise at least one guiding portion 72 and 73 which is slidably associated with the anticipating cam 130.
  • the delay means 15 also comprise a delay cam 150, with which the at least one guiding portion 72 and 73 of the upper abutment elements 70 is slidably associated.
  • the upper chain 71 is advantageously adapted to move the upper abutment elements 70 along the path travelled by the upper conveyor 7.
  • the consequent sliding of the guiding portions 12 and 73 of the upper abutment elements 70 on the anticipating cam 130 causes the rotation of the upper abutment elements 70, with respect to the hinges 75, for anticipating the inclination of the upper abutment elements 70 with respect to a direction that is perpendicular to the tangent of the path travelled by the upper conveyor 7.
  • the upper chain 71 moves the upper abutment elements 70 along the path travelled by the upper conveyor 7, and the sliding of the guiding portions 12 and 73 of the upper abutment elements 70 on the delay cam 150 causes the rotation of the upper abutment elements 70, with respect to their hinges 75, so as to delay the inclination of the upper abutment elements 70 with respect to a direction that is perpendicular to the tangent of the path travelled by the upper conveyor 7.
  • the upper abutment elements 70 are placed in traction by the upper chain 71 at the hinges 75, and the profile of the anticipating cam 130 is such that, during the sliding of the guiding portions 72 and 73 along the anticipating cam 130, the upper abutment elements 70 that are about to enter the work region 11 and thus are about to mesh with the band 5, perform an anticipation, i.e. an anticipated inclination toward the band 5, as explained in more detail below, with reference to Figures 3 and 4.
  • each upper abutment element 70 comprises two guiding portions 72 and 73 and the anticipating cam 130 comprises two guiding profiles 131 and 132.
  • the delay cam 150 also comprises two guiding profiles 151 and 152.
  • the guiding profiles 131 and 132 of the anticipating cam 130 are different from each other, as are the guiding profiles 151 and 152 of the delay cam 150.
  • a first portion 72 of the two guiding portions 72 and 73 of the upper abutment element 70 slides on the first profile 131 of the anticipating cam 130 and on the first profile 151 of the delay cam 150.
  • the second guiding portion 73 slides on the second profile 132 of the anticipating cam 130 and on the second profile 152 of the delay cam 150.
  • the guiding portions 72 and 73 can advantageously each comprise a sliding wheel for sliding on the respective profile of the anticipating cam 130, and of the delay cam 150, as described below.
  • Such sliding wheels can be advantageously constituted by bearings. Such bearings rest on the respective profiles 131, 132, 151 and 152 continuously over the entire path, thus ensuring control of the inclination of the upper abutment elements 70 along the entire movement path.
  • the radius of the second sprocket 77 can be larger than the radius of the first sprocket 76.
  • the band 5 advantageously can be associated, once the characteristic corrugation structure has been formed, with additional bands 57 and 58 which are bonded with adapted bonding means (not shown) to the peaks of the corrugations of the corrugated band 5.
  • Figures 3, 3a, 4 and 4a show the machine 1 , in which only three upper abutment elements 70a, 70b and 70c are shown, and the contiguous three lower abutment elements 90a, 90b and 90c which are proximate to the entry 110 to the work region 11.
  • the vane 78b of the upper abutment element 70b is arranged along a direction B that is inclined with respect to a direction RB that is perpendicular to the tangent of the path travelled by the upper conveyor 7.
  • the direction RB coincides with a direction that is radial with respect to the circumference of the sprocket 76 and passes through the hinge 75b of the abutment element 70b.
  • vanes 78a and 78c of the upper abutment elements 70a and 70c are substantially aligned in a radial direction with respect to the sprocket 76.
  • the first profile 131 and the second profile 132 of the anticipating cam 130 define slightly different paths for the respective guiding portions 72b and 73b of the abutment element 70b. This results in the creation of a torque on the upper abutment element 70b, which thus rotates with respect to the hinge 75b.
  • Figure 4 shows the instant just after the instant shown in Figure 3.
  • the upper abutment element 70a has by now meshed with the band 5, while the lower abutment element 90b and the upper abutment element 70b are cooperating to form the new corrugation of the band 5.
  • the upper abutment element 70b is still inclined with respect to the radial direction RB, in order to facilitate the meshing of the corrugation, while leaving a space necessary for the ribbon 5 to pass between the upper abutment element 70b and the lower abutment element 90b.
  • the upper abutment element 70a conveys the previous corrugation, and slides perpendicular to the longitudinal direction of motion.
  • the upper abutment element 70c starts to enter the region Z, and because of the different profiles 131 and 132 of the anticipating cam 130, it begins to incline, along the direction C, with respect to the radial direction RC with respect to the sprocket 76.
  • Figures 5 to 7 show the machine 1, in which a single upper abutment element 70d is shown, proximate to the exit 111 from the work region 11.
  • the upper abutment element 70d tends to incline with respect to the radial direction RD, along the direction D, because of the engagement of the portions 72d and 73d with the respective profiles 151 and 152 of the delay cam 150.
  • the upper abutment element 70d rotates about the hinge 75d, inclining the vane 78d later than it would if it remained arranged radially with respect to the sprocket 77.
  • the upper abutment element 70d tends to exit from the work region 11 in a substantially vertical position, and therefore it does not collide with the corrugation that was formed previously.
  • Figure 7 shows the upper abutment element 70d, now extracted from the corrugation that has just been formed, and still inclined with respect to the radial direction RD, along the direction D, since the profiles 151 and 152 of the delay cam 150 are still different.
  • the fact of having a sprocket 77 of large radius further facilitates the substantially vertical exit of the upper abutment element 70d, preventing contact thereof with the corrugation that has just been formed or with other components of the machine 1.
  • the machine for providing corrugated sheet-like elements achieves the intended aim and objects by making it possible to provide corrugated sheet-like elements that have deep corrugations, the vertical extension of which can be equal to, or even greater than, the pitch of those corrugations.
  • Another advantage of the machine for providing corrugated sheet-like elements consists in preventing the problem of the oscillations and of the uncontrolled flapping of the vanes of conventional machines, since the abutment elements have guiding portions that slide stably and continuously on the respective profiles of the anticipating and delay cams.
  • Another advantage of the machine for providing corrugated sheet-like elements consists in the fact that it can be easily modified in order to provide corrugated sheet-like elements with different corrugation profiles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Paper (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

L'invention concerne une machine automatique (1) pour fournir des éléments type tôle ondulée comprenant un moyen (3) pour l'ondulation en continu d'un feuillard (5) qui se déplace dans la direction longitudinale, dans laquelle le moyen (3) comprend un convoyeur supérieur (7) et un convoyeur inférieur (9). Le convoyeur supérieur (7) comprend une pluralité d'éléments (70) d'appui supérieurs qui s'étendent perpendiculairement à la direction longitudinale de mouvement du feuillard (5). Le convoyeur inférieur (9) comprend une pluralité d'éléments (90) d'appui inférieurs qui s'étendent perpendiculairement à la direction longitudinale de mouvement du feuillard (5). Dans la zone de travail (11), les éléments (70) d'appui supérieurs sont en disposition encastrée avec les éléments (90) d'appui inférieurs. La machine comprend en outre : - un moyen d'anticipation (13) pour prévoir, à l'entrée de la zone de travail (11), l'inclinaison des éléments (70) d'appui supérieurs par rapport à une direction qui est perpendiculaire à la tangente de la trajectoire suivie par le convoyeur supérieur (7) et - un moyen de retard (15) pour retarder, à la sortie de la zone de travail (11), l'inclinaison des éléments (70) d'appui supérieurs par rapport à une direction qui est perpendiculaire à la tangente de la trajectoire suivie par le convoyeur supérieur (7).
PCT/EP2014/053211 2013-02-26 2014-02-19 Machine automatique pour fournir des éléments type tôle ondulée WO2014131667A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2013A000271 2013-02-26
IT000271A ITMI20130271A1 (it) 2013-02-26 2013-02-26 Macchina automatica per la realizzazione di elementi lastriformi ondulati.

Publications (1)

Publication Number Publication Date
WO2014131667A1 true WO2014131667A1 (fr) 2014-09-04

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Application Number Title Priority Date Filing Date
PCT/EP2014/053211 WO2014131667A1 (fr) 2013-02-26 2014-02-19 Machine automatique pour fournir des éléments type tôle ondulée

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IT (1) ITMI20130271A1 (fr)
WO (1) WO2014131667A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016124548A1 (fr) * 2015-02-04 2016-08-11 Fabio Angelo Gritti Machine automatique pour délivrer des éléments en forme de feuille ondulée et aube pour ladite machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015155051A1 (fr) 2014-04-08 2015-10-15 Interwave S.R.L. Machine automatique de fourniture d'éléments de type feuille ondulée

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764193A (en) * 1954-01-11 1956-09-25 Coruply Corp Endless web corrugating machine
JPS60115332A (ja) * 1983-11-28 1985-06-21 Toshiba Corp 放熱フィンの連続成形装置
WO2004098867A1 (fr) * 2003-05-08 2004-11-18 Interwave S.R.L. Machine automatique de production d'elements de type feuille ondulee destines notamment a l'emballage, l'isolation thermique, l'isolation phonique et analogue

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2764193A (en) * 1954-01-11 1956-09-25 Coruply Corp Endless web corrugating machine
JPS60115332A (ja) * 1983-11-28 1985-06-21 Toshiba Corp 放熱フィンの連続成形装置
WO2004098867A1 (fr) * 2003-05-08 2004-11-18 Interwave S.R.L. Machine automatique de production d'elements de type feuille ondulee destines notamment a l'emballage, l'isolation thermique, l'isolation phonique et analogue

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016124548A1 (fr) * 2015-02-04 2016-08-11 Fabio Angelo Gritti Machine automatique pour délivrer des éléments en forme de feuille ondulée et aube pour ladite machine
US10675831B2 (en) 2015-02-04 2020-06-09 Grifal S.P.A. Automatic machine for providing corrugated sheet-like elements and vane for said machine

Also Published As

Publication number Publication date
ITMI20130271A1 (it) 2014-08-27

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