WO2017009796A2 - Machine et procédé de sertissage d'une tige de chaussure - Google Patents

Machine et procédé de sertissage d'une tige de chaussure Download PDF

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Publication number
WO2017009796A2
WO2017009796A2 PCT/IB2016/054196 IB2016054196W WO2017009796A2 WO 2017009796 A2 WO2017009796 A2 WO 2017009796A2 IB 2016054196 W IB2016054196 W IB 2016054196W WO 2017009796 A2 WO2017009796 A2 WO 2017009796A2
Authority
WO
WIPO (PCT)
Prior art keywords
jaws
instant
shaping knife
passage slot
crimping
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.)
Ceased
Application number
PCT/IB2016/054196
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English (en)
Other versions
WO2017009796A3 (fr
Inventor
Francesco Cottino
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.)
Elettrotecnica Bc SpA
Original Assignee
Elettrotecnica Bc SpA
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 Elettrotecnica Bc SpA filed Critical Elettrotecnica Bc SpA
Publication of WO2017009796A2 publication Critical patent/WO2017009796A2/fr
Publication of WO2017009796A3 publication Critical patent/WO2017009796A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D8/00—Machines for cutting, ornamenting, marking or otherwise working up shoe part blanks
    • A43D8/52—Flexing
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D8/00—Machines for cutting, ornamenting, marking or otherwise working up shoe part blanks
    • A43D8/44—Creasing presses

Definitions

  • the present invention relates to a machine, and a relative method, for crimping or preforming the shoe upper.
  • crimping or “preforming”, as known in technical footwear field, is meant carrying out a deformation of the shoe upper usually along a predetermined curve, in order to mould in a substantially saddle shape such a "front” portion of the upper arranged, in the finished shoe, at the user's instep.
  • Such jaws can be heated and the shaping knife, at its end intended for contacting the upper in progress, usually comprises a notch with a curved profile suitably shaped in order to define the correct crimping curve of the upper.
  • the shaping knife As the curved profile of the shaping knife changes, it is possible to vary the crimping curve produced on the upper in progress.
  • the US Patent 131,288 in the name of Makepeace relates to a crimping machine of the type depicted above, wherein adjusting screws interposed between the two jaws determine the width of the passage slot during the translation of the shaping knife, with the relative upper in progress progressively engaging within such a passage slot.
  • GB 1909-29,885 in the name of Lockett Crimping Machine Co relates to a similar crimping machine, wherein the two jaws are subject to a certain elastic compliance along their mutual approach/removal direction, substantially perpendicular to the relative flat surfaces defining the aforesaid passage slot.
  • Crimping machines having two substantially plate-shaped jaws, i.e. each provided with a flat retaining wall usually vertically arranged and adapted to define one of the surfaces of the aforesaid passage slot for the shaping knife and the upper, which are activated so that to move closer to one another and thus to be held in position, in order to define the aforesaid passage slot, by respective fluidically operated jacks acting on opposite sides of the jaws along an approach direction orthogonal to such flat retaining walls, are currently known on the market.
  • the pressure exerted by j acks on the relative j aws i.e. the pressure conditions and volume of the fluid entering the cylinder of each jack, can be set before activating the shaping knife and maintained so that the operating distance between the jaws, and thus the thickness of the passage slot, can be selected depending on the thickness and the shape of the upper to be crimped.
  • the crimping of an upper is carried out first by arranging the jaws, thanks to the relative jacks, at a mutual distance to form a slot adapted to process the particular upper to be shaped, and thus, after having arranged the upper above the jaws at the passage slot, the shaping knife translating within such a passage slot is activated, thus dragging the upper in progress therewith and causing the crimping deformation thereof depending on the notch curve such a shaping knife is provided with.
  • an object of the present invention is to implement a crimping machine for the front portion of shoe uppers, not having the drawbacks of the known prior art and thus enabling an outstanding flexibility in processing uppers requiring different crimping curves.
  • Another object of the present invention is to implement a crimping machine for the front portion of an upper, i.e. that portion of the upper intended for the front covering of the user's foot, not requiring a plurality of different shaping knives to make different crimping curves on the same or different types of shoe uppers.
  • a further object of the present invention is to provide a method for crimping the front portion of an upper, enabling to rapidly and efficiently varying the crimping curve of the upper in progress, without the need to replace the shaping knife assembled on the crimping machine.
  • the machine for crimping the front portion of a shoe upper comprises two supporting plate-shaped jaws to support the upper, a shaping knife translatable, in a controlled way, with reciprocating motion between an engaged position within a passage slot between the two jaws and a position substantially disengaged from said slot, and wherein these two jaws are movable along an approach direction that is substantially orthogonal to the passage slot, between a close position and a position of mutual removal, as well as an activating and retaining device to activate and retain at least one of the two jaws in a predefined position.
  • the activating and retaining device of the crimping machine comprises means for varying instant-by-instant, in a controlled way, the position of at least part of one of the two jaws and/or the retaining force acting on it.
  • a controller preferably of the programmable type, able to modify instant- by-instant the mutual position of the jaws of the crimping machine and/or the retaining force acting on at least part of one of the two jaws, and thus to preferably vary the possible compliance of one of the two jaws along the aforesaid approach direction, enables to change such parameters during the translation of the shaping knife within the aforesaid passage slot, in this way varying, as surprisingly found by the Applicant, the crimping curve that is possible to give to the upper in progress.
  • the crimping machine enables to advantageously implement a crimping method of the front portion of a shoe upper, providing for the steps of:
  • the step d) of the method herein depicted further provides for the variation of the position of at least part of one of the two jaws and/or the retaining force acting on it, depending on the variation of the position reached by the shaping knife within said passage slot.
  • the aforesaid activating and retaining device of the crimping machine comprises at least one fluidically operated jack acting on at least part of one of the two jaws, and preferably acting on the entire jaw along the above mentioned approach direction, and the aforesaid means for varying instant-by- instant, in a controlled way, the position and/or the retaining force are designed to instantly adjust the fluid pressure within such a jack.
  • the activating and retaining device comprises two fluidically operated jacks whose actions on the two jaws are opposing along the aforesaid approach direction and, moreover, a proportional valve operatively interposed between such jacks, in order to adjust the fluid flow toward the two jacks.
  • the crimping machine of the front portion of a shoe upper further comprises means for determining the instant position of the shaping knife.
  • the above mentioned means for determining the instant position, i.e. for subsequent instants, of the shaping knife of the crimping machine can be both of direct type, i.e. for example of the type wherein there is a sensor adapted to determine the spatial position of the shaping knife, and of indirect type, i.e. of the type wherein a device is able to approximately or theoretically determine such an instant position of the shaping knife, for example by means of kinematic calculations or by means of the detection of the times and/or the speed given to the shaping knife.
  • the crimping machine when the crimping machine, according to a particular aspect of the present invention, is provided with the aforesaid means adapted to determine instant-by-instant the position of the shaping knife and the aforesaid at least one fluidically operated jack acting on at least part of one of the two jaws, then such a machine is able to implement a crimping method of the type depicted above, wherein the aforesaid step of d) varying instant-by-instant, in a controlled way, the position of at least part of one of the two jaws and/or the retaining force acting on it during the step of c) translating the shaping knife progressively engaging within the passage slot, can be carried out as a combination of the two following steps:
  • figure 1 schematically depicts in axonometric view a crimping machine according to a preferred aspect of the present invention
  • figure 2 is a scheme of the shaping knife and one of the supporting jaws to support the upper, which are usable in the crimping machine of figure 1;
  • figure 3 is a side view of a shaping knife that can be used in the crimping machine of figure 1 ;
  • figure 4 is a back side view of part of the crimping machine of figure 1;
  • figure 5 is an operation scheme of a crimping machine according to the present invention.
  • figure 6 is a scheme of the fluid circuit exemplifying part of the fluidically activating devices of the crimping machine shown in figure 1.
  • the crimping machine 1 essentially comprises two plate-shaped and movable jaws 2a, 2b, on which a shoe upper 7 whose front portion has to be crimped is supported, and a shaping knife 3 adapted to be translated, in a reciprocating rectilinear motion, within and outside a slot 8 defined by the same two jaws 2a, 2b.
  • the two jaws 2a, 2b for example consisting preferably of metallic plates each provided with at least one vertical retaining wall 9a, 9b and one at least partially horizontal wall 10a, 10b possibly tilted towards the operator and supporting the upper 7, are assembled substantially specular to a vertical plane and thus define, according to known art, the aforesaid slot 8, also usually vertical, as a passage for the above mentioned shaping knife 3.
  • the two jaws 2a, 2b can further and optionally be heated by specific heat supplying means, herein not shown and for example constituted by suitably thermostated electrical resistances, and their position to the frame of the crimping machine 1 can be further set by mechanical adjusting devices along two or three axes, herein not depicted.
  • Such jaws 2a, 2b are further movable, at least along a mutual approach/removal direction - hereinafter for sake of simplicity even only depicted as "approach direction" - that is substantially orthogonal to the passage slot 8, between a mutual close position of processing of the upper 7, and a position of mutual removal of loading/unloading of the same upper 7 from crimping machine 1.
  • the herein described crimping machine 1 comprises an activating and retaining device 4, 5, 6 to activate and retain at least one of the two jaws 2a, 2b, and preferably at least both the jaws 2a, 2b, in a given predefined position, which is able to move, both in mutual approach and removal directions, the two jaws 2a, 2b along at least the aforesaid approach direction, until reaching a mutual relative position between the two jaws 2a, 2b.
  • such an activating and retaining device comprises at least one fluidically operated jack, for example of the pneumatic or oil (i.e. oleo-pneumatic) type, arranged and shaped so that to act on one or both the jaws 2a, 2b, for example by specific hookup levers, so that to mutually move them closer or away from one another and, hence, to vary the width (d) of the passage slot 8.
  • a fluidically operated jack for example of the pneumatic or oil (i.e. oleo-pneumatic) type, arranged and shaped so that to act on one or both the jaws 2a, 2b, for example by specific hookup levers, so that to mutually move them closer or away from one another and, hence, to vary the width (d) of the passage slot 8.
  • the above mentioned activating and retaining device of the crimping machine 1 can comprise, preferentially and not exclusively, one or more fluidically operated jacks 4a, 4b also only acting on distinct and possibly compliant parts of the jaws 2a, 2b, so that to vary pointwise the position and/or force applied on such jaws 2a, 2b by the same fluidically operated jacks 4a, 4b.
  • the two jaws 2a, 2b are activated, along a mutual approach or removal direction, by two fluidically operated jacks 4a, 4b, one per each supporting jaw 2a, 2b, whose actions on the latter are opposing and rigidly move them along the aforesaid approach direction, i.e. along a direction substantially horizontal to the above mentioned retaining walls 9a, 9b adapted to define the sides of the slot 8.
  • a crimping machine 1 provided with self-propelled jaws 2a, 2b supporting an upper 7 to be crimped, which are suitably arranged and mutually translatable so that to define a slot 8 of vertical passage for the shaping knife 3, alternatively any other configuration and arrangement of such a passage slot 8 can be used.
  • the aforesaid activating and retaining device at least for what concerns the activating mechanisms of the jaws 2a, 2b by way of example and preferably constituted by one or more fluidically operated jacks 4a, 4b, can allow the same jaws 2a, 2b to have a certain elastic compliance in the same mutual approach direction of the two jaws 2a, 2b, so that if such jaws 2a, 2b are subjected to a mutual removal force during the processing, they could move away even within limits along the above mentioned mutual approach direction and then move back to the position defined by the activating mechanisms of the activating and retaining device 4, 5, 6, when such a removal force is missing.
  • the activating and retaining device of the herein shown crimping machine 1 further comprises at least one mechanism 5 to activate, according to a reciprocating translatory motion, the shaping knife 3 along a direction enabling such a knife 3 to penetrate and exit from the passage slot 8.
  • a direction is orthogonal to the surfaces facing the retaining walls 9a, 9b and thus is vertical.
  • an activating mechanism of the shaping knife 3 can comprise a fluidically operated jack 5, for example of the pneumatic or oleodynamic type.
  • the shaping knife 3 in particular as can be seen in figure 3, can be shaped so that to show a recess 12 for example shaped as a parabola or hyperbole or according to any other curve, and whose edges are intended to first come in contact with the upper 7 during the processing.
  • the activating and retaining device of the crimping machine 1 further comprises means 6, 14a, 14b, 24a, 24b, 11 for varying instant-by-instant and in a controlled and preferably programmable way, the position of at least part of one of the two jaws 2a, 2b and/or for varying instant- by-instant and in a controlled way the retaining force acting on at least part of one of such jaws 2a, 2b.
  • Such means to instantly vary, in a controlled way, the position of at least part of one of the two jaws 2a, 2b and/or the retaining force acting on it can comprise an automatic controller 6, for example of the programmable type, acting so that to instantly control, i.e.
  • the preferentially programmable automatic controller 6 can act even if indirectly on a proportional valve 11 intended for, according to a preferred aspect of the present invention, being operatively interposed between such two fluidically operated jacks 4a, 4b, so that to severally adjust the fluid flow towards the two jacks 4a, 4b and thus so to vary the operating pressure of each jack 4a, 4b.
  • the automatic controller 6 can naturally be constituted by a suitably programmed processor provided with controller cards controlling the various components of the fluid circuit, for example an oleodynamic one (such as that of figure 6), and determining the position and/or the activating force of the jaws 2a, 2b.
  • controller cards controlling the various components of the fluid circuit, for example an oleodynamic one (such as that of figure 6), and determining the position and/or the activating force of the jaws 2a, 2b.
  • the activating mechanism of the shaping knife 3, for example constituted by a fluidically operated jack 5, can be subject to respective means 5, 15, 25 for the instantly controlled variation, i.e. allowing an instant-by-instant control of the position and/or speed and/or activating force of the same shaping knife 3.
  • such means can include the above described automatic controller 6, which can also instantly adjust the fluid pressure within the jack 5 activating the shaping knife 3, for example by a solenoid valve 15 and a regulator 25, then controlling instant-by-instant the position and/or the descending and/or ascending speed and/or the force the shaping knife 3 applies.
  • both the fluidically operated jacks, or jack, 4a, 4b acting on the jaws 2a, 2b and the fluidically operated jack 5 acting on the shaping knife 3 can be, by way of example, of double stroke type.
  • both the fluidically operated jacks 4a, 4b acting on the jaws 2a, 2b and the fluidically operated jack 5 acting on the shaping knife 3 are controlled so that their activation law - motion and applied force - is determined and controlled instant-by-instant by the same automatic controller 6, thanks to the respective distribution valves 14a, 14b and 15 automatically adjusted by electromagnetic actuators connected to the automatic controller 6, to respective pressure regulators 24a, 24b and 25 and to the aforesaid proportional valve 1 1.
  • control exerted on such actuators 4a, 4b, 5 can be of the closed loop type, in the presence of possible sensors of fluid pressure and/or of piston displacement, or it can be of the open loop type.
  • the means for the instantly controlled variation of the position and/or speed and/or activating force of the same shaping knife 3 can be separated from those used for controlling the position of the two jaws and/or the retaining force/s acting on them, and can be constituted by a different automatic controller, for example of the programmable type, or by a suitable processor.
  • the crimping machine 1 further comprises means for determining the instant position (s) of the shaping knife 3, which are operatively connected to the aforesaid means for varying instant-by-instant the position and/or the retaining force of the jaws 2a, 2b, so that the latter could determine the position of the two jaws 2a, 2b and/or the retaining force acting on them, depending on the position reached by the shaping knife 3, especially within the passage slot 8.
  • such means for determining the position (s) instant-by-instant of the shaping knife 3 can for example be constituted by position sensors of the same knife 3, so that to provide a direct detection of the position of the knife 3, or they can comprise a device, or also an algorithm working within a suitable controller or processor (for example the automatic programmable controller 6), able to indirectly provide such an instant position of the shaping knife 3, for example by means of kinematic calculations or by means of the detection of the times and/or speed and/or pressure set to the shaping knife 3, possibly also in a approximated or theoretical way.
  • the above described crimping machine 1 enables implementing the hereinafter depicted method for crimping, in a controlled way, the front portion of the shoe upper 7, such as for example a boot.
  • such a method for crimping in a controlled way the front portion of a shoe upper 7, with reference to the herein above described crimping machine 1, provides for the steps of:
  • the steps herein depicted as a) and b), obtained thanks to the above described activating and retaining device 4, 5, 6, can be temporally reversed one to another, without therefore affecting the final result of the method according to the present invention.
  • the crimping machine 1 is provided with two fluidically operated jacks 4a, 4b suitably controlled by an automatic controller 6 and oppositely pushing (P) the two jaws 2a, 2b in mutual approach and removal directions
  • step b) of controlled approach of the two jaws 2a, 2b can be obtained by setting a certain pressure value - thanks to the relative distributors 14a, 14b, the respective regulators 24a, 24b and the proportional valve 11 all directly or indirectly adjusted for example by the controller 6 - to be applied to the fluid intended for the jacks 4a, 4b and by momentarily maintaining such a value so that to move the retaining walls 9a, 9b of the two jaws 2a, 2b to the predefined initial position, in order to define a passage slot 8 with pre-
  • the herein mentioned activating step c) of translating the shaping knife 3 within the slot 8 in case the activating and retaining device comprises, as activating mechanism, at least one fluidically operated jack 5 adjusted by an automatic controller, for example by the same controller 6 acting on the respective distributor 15 and on the regulator 25 (see the scheme of figure 6), can be simply implemented by controlling the inflow and the input fluid pressure of the activating jack 5 of the shaping knife 3.
  • the step of d) instantly varying the position of at least part of one of the two jaws 2a, 2b and/or the retaining force acting on it during the aforesaid step of c) translating (s) the shaping knife 3, can be carried out thanks to the above mentioned means for varying instant-by-instant, in a controlled way, the position and/or the retaining force of the two jaws 2a, 2b, comprising for example the above described preferably programmable automatic controller 6.
  • the aforesaid step d) wherein there is a variation, instant-by-instant, in a controlled way, of the position of at least part of one of the two jaws 2a, 2b and/or the retaining force acting on it, during said step of c) translating (s) the shaping knife (3) progressively engaging within the passage slot (8), in case the crimping machine 1 has two fluidically operated jacks 4a, 4b whose actions are opposing and respectively on the two jaws 2a, 2b, can provide for a step consisting of:
  • such a step of d) varying in a controlled way and instant-by-instant the position of at least part of one of the two jaws 2a, 2b and/or the retaining force acting on it, during the step of c) translating (s) the shaping knife 3 progressively engaging within the passage slot 8 defined by the same two jaws 2a, 2b, provides for the variation of the position of at least part of one of the two jaws 2a, 2b and/or the retaining force acting on it, being depending on the variation of the position (s) actually or theoretically reached by the shaping knife (3) within such a passage slot (8).
  • the Applicant found that, by instantly varying the pressure exerted by the two jaws 2a, 2b on the upper 7 depending on the position (s) reached by the shaping knife 3 within the passage slot 8, it is possible to modify the curvature (pre-forming) taken by the front portion of the same upper 7, without the need to modify the profile of the recess 12 of the shaping knife 3 and thus without the need to replace the knife 3 to vary the crimping.
  • the Applicant was able to verify, hence it is possible to obtain different crimpings of the front portion of the same upper 7 by simply varying instant-by-instant the pressures of the two jaws 2a, 2b depending on the position (s) reached by the knife 3 during its translation within the slot 8.
  • This enables to set variation programs to vary the pressure of the jaws 2a, 2b depending on the position (s) of the shaping knife 3, that can be for example stored in the automatic controller 6 and give different crimpings to the same upper 7, depending on the variation program of the pressure the operator selected.
  • the crimping machine 1 on which the herein described crimping method is implemented, comprises means for determining the instant position (s) of the shaping knife 3, the method also provides for the steps of:
  • the variation of the pressure applied by the jaws 2a, 2b causes a different interaction of the upper 7 with respect to the retaining walls 9a, 9b of the two jaws 2a, 2b and to the shaping knife 3 thus enabling to obtain different crimpings of the same upper 7, depending on the selected and pre-set variation law of such a pressure (P) of the jaws 2a, 2b as a function of the position (s) of the shaping knife 3.
  • the aforesaid step of d) varying instant-by-instant, in a controlled way, the position of at least part of one of the two jaws 2a, 2b and/or the retaining force acting on it during the step of c) translating (s) the shaping knife 3 progressively engaging within the passage slot 8, can be programmed by the operator depending on the shape the upper 7 in progress must adopt.
  • the crimping machine 1 thanks to the punctual and instantaneous control of the positions and/or the force applied by the jaws 2a, 2b, the crimping machine 1 according to the present invention enables not to damage the material (leather or synthetic material) the upper 7 in progress is consisting of, and to carry out very accentuated crimping curves also on thick uppers 7 or with hard materials.

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  • Tyre Moulding (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

La présente invention concerne un procédé de sertissage, de manière contrôlée, de la partie avant d'une tige de chaussure au moyen d'une machine de sertissage du type comprenant deux mâchoires en forme de plaque de support pour supporter la tige, un couteau de mise en forme pouvant effectuer un mouvement de translation, d'une manière contrôlée, avec un mouvement de va-et-vient entre une position mise en prise à l'intérieur d'une fente de passage entre les deux mâchoires et une position sensiblement séparée de ladite fente, et ces deux mâchoires étant mobiles le long d'une direction d'approche qui est sensiblement orthogonale par rapport à la fente de passage, entre une position proche et une position de retrait mutuel, et un dispositif d'activation et de retenue afin d'activer et de retenir au moins l'une des deux mâchoires dans une position prédéfinie, et ledit dispositif d'activation et de retenue comprenant des moyens pour faire varier instant par instant, d'une manière contrôlée, la position d'au moins une partie de l'une des deux mâchoires et/ou la force de retenue agissant sur celle-ci. Le procédé comprend les étapes consistant à : a) disposer la tige sur la partie supérieure des deux mâchoires en forme de plaque, b) rapprocher les deux mâchoires l'une de l'autre dans une position dans laquelle une fente de passage prédéfinie est obtenue ; c) procéder à la translation de la lame de mise en forme se mettant en prise progressivement à l'intérieur de la fente de passage, pour tirer la tige à l'intérieur de ladite fente de passage définie entre les deux mâchoires ; et d) faire varier instant par instant, de manière contrôlée, la position d'au moins une partie de l'une des deux mâchoires et/ou la force de retenue agissant sur elle, pendant l'étape c) consistant à c) faire translater la lame de mise en forme se mettant en prise progressive à l'intérieur de la fente de passage.
PCT/IB2016/054196 2015-07-14 2016-07-14 Machine et procédé de sertissage d'une tige de chaussure Ceased WO2017009796A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUB2015A002141 2015-07-14
ITUB2015A002141A ITUB20152141A1 (it) 2015-07-14 2015-07-14 Macchina e metodo per la cambratura della tomaia di una calzatura.

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WO2017009796A2 true WO2017009796A2 (fr) 2017-01-19
WO2017009796A3 WO2017009796A3 (fr) 2017-10-26

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PCT/IB2016/054196 Ceased WO2017009796A2 (fr) 2015-07-14 2016-07-14 Machine et procédé de sertissage d'une tige de chaussure

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IT (1) ITUB20152141A1 (fr)
WO (1) WO2017009796A2 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US131288A (en) * 1872-09-10 Improvement in boot and shoe crimping-machines
GB190929885A (en) * 1909-12-21 1910-06-16 William Edward Lake Improvements in Machines for Crimping Leather for Boot Uppers and the like.
US1930464A (en) * 1932-02-18 1933-10-17 United Shoe Machinery Corp Crimping machine
IT1217478B (it) * 1988-05-03 1990-03-22 Comelz Spa Macchina incollatrice e ripiegatrice dei bordi pepiferici di materiali in fogli e simili,operativamente asservita a programmazione elettronica dei suoi parametri funzionali

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ITUB20152141A1 (it) 2017-01-14
WO2017009796A3 (fr) 2017-10-26

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