EP0390620A1 - Vorrichtung zum Falten von ungefähr flächigen flexiblen Textilprodukten - Google Patents

Vorrichtung zum Falten von ungefähr flächigen flexiblen Textilprodukten Download PDF

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Publication number
EP0390620A1
EP0390620A1 EP90400420A EP90400420A EP0390620A1 EP 0390620 A1 EP0390620 A1 EP 0390620A1 EP 90400420 A EP90400420 A EP 90400420A EP 90400420 A EP90400420 A EP 90400420A EP 0390620 A1 EP0390620 A1 EP 0390620A1
Authority
EP
European Patent Office
Prior art keywords
drive
product
passage
folding unit
faces
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Withdrawn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
EP90400420A
Other languages
English (en)
French (fr)
Inventor
Rudolf Kobel
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.)
Jensen AG Burgdorf
Original Assignee
Jensen AG Burgdorf
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 Jensen AG Burgdorf filed Critical Jensen AG Burgdorf
Publication of EP0390620A1 publication Critical patent/EP0390620A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/14—Buckling folders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/60—Folding or cutting crosswise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/04—Folding sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/18—Oscillating or reciprocating blade folders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/69—Other means designated for special purpose
    • B65H2404/693—Retractable guiding means, i.e. between guiding and non guiding position

Definitions

  • the present invention relates to a folding unit for a substantially flat and flexible textile product, and in particular for quilts and thick blankets.
  • a folding unit can be used when packaging these quilts or these blankets.
  • Folding units are already known for quilts or thick blankets and in particular, folding units which operate in the following way: the blanket or the quilt is transported flat by a conveyor belt, up to a knife, which just lift said quilt or cover from below to, on the one hand, thus form a fold on its edge, and, on the other hand, present the cover (or quilt) at the level of the fold thus formed in the mouth of a corridor, where the two thicknesses of the cover (or duvet) folded over each other will be led to another end of the corridor, from where the cover (or duvet) comes out perfectly folded with two thicknesses folded over each other.
  • Such a device poses a problem of certain size, since it requires a complicated conveyor belt circuit and over several heights, and in particular: a conveyor belt intended to transport the product to present it in front of the knife; conveyor belts in the folded product drive corridor, these conveyor belts being in a plane different from the plane of the first conveyor belt; conveyor belts making it possible to receive the folded product at the exit of the drive corridor and to transport it to a new folding unit, this band being in a plane different from the planes of the other bands of conveying.
  • a folding unit does can perform only one folding.
  • the conveying circuit is all the more complicated and the folding errors are all the more numerous the more there are folding units.
  • the use of a multitude of folding units makes the cost of packaging expensive.
  • the present invention aims to overcome these drawbacks. It offers, on the one hand, a folding unit with a smaller footprint, the conveyor belt, which transports the products to the drive corridor at the level of which a fold is obtained, also serving to recover and store them. evacuate from the folding unit, once the folding has been carried out in the drive lane, said products engaging and withdrawing from the drive lane by the same end thereof, the direction of drive in said lane can be reversed.
  • a device according to the invention allows a product to be folded in several folds, with a single passage of said product in a folding unit, the number of folding units necessary to obtain the desired folding for packaging being , therefore, notoriously diminished.
  • the present invention therefore relates to a folding unit for a substantially flat and flexible textile product, comprising on the one hand, a strip of conveying, mounted on support elements integral with a fixed frame and having a carrying surface moving in its plane, by means of motor means, in a conveying direction and direction according to which said carrying surface transports said product from an introduction zone, the folding unit comprising, on the other hand, two secondary drive bands, mounted on support elements and facing one another, the opposite faces of these two bands being substantially parallel and delimiting a drive corridor terminated at one of its ends by an opening opposite the carrying surface, opening the center line of which is substantially perpendicular to the conveying direction, said opposite faces being both animated, by motor means controlled by a control device, of a driving movement with the same speed and in substantially the same driving direction ement and in the same direction, the products being driven in the drive passage by clamping between said faces, said folding unit also comprising means making it possible to lift the product, by one of its parts, from the carrying surface of the strip of conveying until the opening of the drive
  • the support elements of one of the drive belts are integral with a frame movable relative to the support elements of the other drive band, a displacement of said movable frame spreading or bringing together, the faces of the drive corridor.
  • the movable frame can be subjected to forces of approach whose action tends to bring the two drive faces closer, and, when a product is engaged in the drive channel, to reaction forces of said product on said faces, said reaction forces moving apart the drive faces when introducing a thickness of a product into said passage, the forces of approximation bringing said faces together when ejecting a product from said passage.
  • the closing forces may include gravity forces, the mobile chassis being connected to the fixed chassis by a link which guides the mobile chassis on a path on which a vertical movement of said mobile chassis is accompanied by a horizontal movement of said mobile chassis.
  • the connection between the mobile chassis and the fixed chassis can be obtained by means of at least one assembly comprising a rod integral with one of the two chassis and sliding axially in a sleeve integral with the other of the two chassis, the common axis of this sleeve and of this rod being inclined with respect to vertical and horizontal directions.
  • the sleeve of an assembly which provides the connection between the mobile chassis and the fixed chassis may be a ball sleeve.
  • that of the drive belts which is not integral with the movable chassis is integral with the fixed chassis, the conveying direction going, at the level of the opening of the drive corridor, from the drive face of the belt. secured to the fixed frame to the drive face of the face secured to the movable frame.
  • the drive belt from that of the faces of the drive corridor, towards which the direction of conveying at the opening of said passage, can extend said surface, beyond said opening, by a face which is opposite the carrying surface of the conveyor belt and which is substantially parallel to said carrying surface.
  • the folding unit can also include, at least one flattening strip arranged with respect to the conveying direction before the two drive belts, and / or, at least one flattening strip arranged, with respect to the conveying direction , after the two drive belts, a flattening band comprising a surface facing the carrier surface of the conveyor belt, substantially parallel to said carrier surface and animated in a movement in substantially the same direction, the same direction and the same speed as that of the bearing surface.
  • the conveyor belt comprises belts arranged lengthwise in the direction of conveyance, two adjacent belts being separated from each other by a separation space.
  • the means making it possible to lift a product up to the opening of the drive corridor may comprise at least one mechanical member, the part of which intended to be in contact with a product is provided with a curved guide ramp which, in the position of guide, extends from the carrying surface of the conveyor belt to said opening, the concavity of the curved guide ramp being substantially opposite to the direction of conveyance.
  • a mechanical member can then be mounted on a pivot on the side opposite the drive corridor with respect to the carrying surface of the conveyor belt and can be pivotally actuated from the control device, the guide ramp passing from one side to the other the carrying surface of the conveyor belt by crossing said carrying surface in a separation space.
  • the folding unit comprises, at least one infrared cell connected to the control device and detecting the passage of a product on the conveyor belt. It can also include, at the opening of the drive corridor, at least one element making it possible to eject an air jet directed towards the bearing surface of the conveyor belt in a direction included in the dihedral upstream of the corridor drive on the conveyor belt with respect to the conveyor direction and delimited by said drive passage and the bearing surface of said conveyor belt.
  • the folding unit can be used in series with other substantially identical folding units and / or in series with a transfer machine.
  • the invention also relates to a method of folding a substantially flat and flexible textile product from such a folding unit by which, in a preferred implementation, to obtain at least one fold, it is transported by the conveyor belt, said product from a location upstream of the drive passage with respect to the direction of conveyance until its leading edge is opposite the opening of the drive passage; lifting the leading edge of said product until the opening of said corridor; said product is driven inside the drive passage, by clamping said product by the faces of the moving passage, in a first direction of the drive direction, the leading edge moving away from the bearing surface; the direction of drive of the faces of said corridor is changed, when the product is partly, engaged in said corridor and partly still, on the supporting surface; the part of said product engaged in the corridor is driven by the moving drive faces, in the second direction of direction drive, the part of said product ejected from the drive channel being folded down by forming a fold, on the part of said product transported, by the carrying surface of the conveyor belt, downstream of the drive channel with respect to the direction of conveying.
  • said product in order to obtain at least one fold, said product is transported, by the conveyor belt, from a place upstream of the drive corridor with respect to the direction conveying, until part of its surface faces the opening of the corridor; training; lifting, by forming a fold, said part up to the opening of said passageway, driving said part thus folded inside said passageway by clamping said product folded by the moving drive faces, salt in a first sense of the drive direction, the folded part moving away from the bearing surface; the direction of drive of the faces of said passage is changed, when the folded product is fully engaged in said passage; said product is driven by the moving drive surfaces, in the second direction of the drive direction, its part released from the drive passage being transported by the carrying surface of the conveyor belt, downstream of said passage drive relative to the conveying direction.
  • the product in order to obtain at least two folds, is transported, by the conveyor belt, from a place upstream of the drive corridor with respect to the direction of conveying, until a part of its surface is opposite the opening of the drive corridor; lifting, by forming a fold, said part up to said opening; driving said folded part inside said aisle, by clamping said product folded by the moving drive faces, in a first direction of the drive direction, the folded part moving away from the bearing surface; the direction of entrainment of the faces of the passage is changed, the product being partly engaged in said passage and partly on the support surface of the conveyor belt, upstream of said drive passage with respect to the direction of conveyance; the folded part of the product is driven inside the drive passage, by the drive faces in movement, in the second direction of the drive direction, the part of said product ejected from said passage being folded down, forming a second fold, on the part of said product transported, by the carrying surface of the conveyor belt, downstream of the drive corridor relative to the direction of conveyance.
  • the folding unit comprises a main conveyor belt 1 and two drive belts 2 and 3 delimiting between them a drive passage 4.
  • the main conveyor belt 1 is a band closed on itself and stretched between two carrier cylinders 5 and 6 which can pivot on their axes, referenced respectively by 9 and 10 ⁇ , these two cylinders 5 and 6 being identical, opposite, and d 'axes 9 and 10 ⁇ parallel.
  • This conveyor belt 1 has two substantially rectangular surfaces 7 and 8, arranged one below the other, longitudinally, between these two cylinders 5 and 6 and tangentially thereto, these two surfaces 7 and 8 being parallel , horizontal and facing each other.
  • the axes 9 and 10 ⁇ of the two carrying cylinders 5 and 6 are each secured to the same chassis 11, the vertical walls of which frame the conveyor belt 1 in length, this chassis 11 being intended to carry the folding unit.
  • the conveyor belt 1 consists of parallel belts 12, looped around themselves and stretched between the two cylinders 5 and 6, two adjacent belts 12 being separated longitudinally from one another by a separation space 13.
  • the drive belt 2 the same width as the conveyor belt 1, is that of the two drive belts which is closest to the cylinder 5, and is a band made up, like the conveyor belt 1, of belts 12 adjacent. It is closed on itself and passed over two identical cylinders 14 and 15, of diameter substantially smaller than that of cylinders 5 and 6.
  • the axes of these two cylinders 14 and 15, referenced respectively by 16 and 17, are parallel and arranged in a plane perpendicular to the direction of the lengths of the conveyor belt 1. They are both integral, at their ends, with the walls of the chassis 11.
  • the cylinder 15 is that of the two cylinders which is closest to the surface 7 It is arranged just above said surface 7, its length substantially coinciding with the width of the conveyor belt 1.
  • the two surfaces of the drive belt 2 arranged tangentially between these two cylinders 14 and 15 are parallel to it. one to the other and substantially perpendicular to the plane of the surfaces 7 and 8. That of these surfaces of the drive belt 2 which is closest to the cylinder 5 is referenced by 18, the other being referenced ée by 19.
  • the drive belt 3 consisting of adjacent belts 12, and, of the same width as the conveyor belt 1 and that the drive belt 2, is arranged stretched on three cylinders, referenced by 21, 22 and 23, the axes 27 are parallel to axes 16 and 17 and are arranged to form the longitudinal edges of a straight prism whose base is a triangle.
  • a second surface of the entrainment band 3, referenced by 25 and comprised between the cylinders 22 and 23, is directly opposite the surface 7 of the conveyor belt 1, and extends the surface 24 perpendicularly, on the side opposite to the drive belt 2 relative to the corridor 4, the cylinder 23 being relative to the surface 7, at the same height as the cylinders 15 and 22.
  • the third surface of this drive belt 3, referenced by 26, is between the cylinders 21 and 23 and is inclined relative to the surfaces 24 and 25, the cylinders 14, 21 and 23 being substantially in the same plane.
  • Each of the axes 27 of the cylinders 21, 22 and 23 is secured, at each of its two ends, to a rod 28, each of the six rods 28 thus defined being itself integral with a movable and sliding frame (not shown) axially in a ball sleeve 29, integral with a wall of the chassis 11.
  • the axes of the rods 28 and of the sleeves 29 are all parallel and inclined relative to the planes of the surfaces 24 and 25, a sliding of the rods 28 relative to the sleeves 29 causing a translational movement of the mobile chassis and of the strip 3 relative to the fixed chassis 11.
  • each side of the assembly formed by the drive strip 2 and by the drive strip 3 there is disposed a flattening strip 31 or 32 facing the surface 7 and on the same side as the strips 2 and 3 relative to this surface 7, that of these two bands, which is between the cylinder 5 and the band 2 being referenced by 31, the other being referenced by 32.
  • Each of these two bands 31 and 32 is mounted on a pair of cylinders, referenced respectively by 33 and 34, whose axes are parallel to axes 9 and 10 ⁇ , these cylinders being arranged at the same height as the cylinder 15, with respect to the surface 7.
  • each of these two flattening bands 31 and 32 which are between the cylinders 33 or 34, which carry them, and which are tangent, are parallel to the surface 7 and of the same width as the latter.
  • the bands 31 and 32 also consist of spaced belts 12.
  • the folding unit is, moreover, provided with a rigid member 36, which comprises a rod 35 parallel to the axes 9 and 10 ⁇ and pivotally mounted on the frame 11, between the surfaces 7 and 8 of the conveyor belt 1 , substantially at the same level, relative to the length of the conveyor belt as the cylinder 15, the length of this rod being substantially equal to the length of the cylinders 5 and 6.
  • the rigid member 36 comprises a plurality of double blades 30 ⁇ extending from the rod 35 to their edge where the two blades which form them meet, said edges being substantially at the level of the drive corridor 4 relative to the length of the conveyor belt 1.
  • a double blade 30 ⁇ which is directly opposite the surface 7 is a guide ramp, referenced by 37, curved, and which has a concavity directed towards the quarter plane delimited by the surface 18 and the surface 7 and is next to a spacing 13 between two co urries 12, its width being slightly less than the width of the space 13 to which it corresponds.
  • the double blades 30 ⁇ of the member 36 are raised and pass through the spaces 13, the guide ramps 37 extending, in part, from the surface 7 to their edge which is then at the opening of the drive passage 4.
  • the folding unit further comprises, at the opening of the drive passage 4, a hollow tube 38, which is disposed axially between the cylinders 14 and 15, parallel to the axis 17 and whose length is equal to the width of the conveyor belt 1.
  • This hollow tube 38 integral with the chassis 11, is provided with a multitude of holes on a line opposite that of the openings of the drive corridor 4, which is closest to the bearing surface 7. It is connected at one of its ends to a device putting it under pressure and allowing an air jet to pass through the holes of this tube 38, passing through the belts 12 of the surface 19 and striking the supporting surface 7 on a line across the width of this surface 7.
  • the conveyor belt 1, the drive bands 2 and 3 and the flattening bands 31 and 32 are each driven on the cylinders, which carry them, by means of motors (not shown), these motors driving the belts 12 constituting these different bands by means of rollers rotating on these belts 12.
  • the surfaces of these bands, between the cylinders which carry them, are displaced in their plane with speeds substantially all identical in standards.
  • the motors associated with them are all controlled by a programmable control unit. This programmable control unit also controls the pivoting of the rigid member 36 as well as the pressurization of the tube 38.
  • the conveyor belt 1 is preferably driven in a conveying direction by which an object placed on the surface 7 is transported from the cylinder 5 towards cylinder 6. It is nevertheless possible to program the control unit so that this conveying direction is reversed.
  • the flattening bands 31 and 32 accompany the movement of the conveyor belt 1, their surface directly facing the surface 7, being animated by a movement similar to that of the surface 7.
  • the drive bands 2 and 3 for their part, rotate so that the surfaces 19 and 24 are always driven by the same movement, this movement being in one or the other of the two directions of the driving direction.
  • the area of this unit which is between the drive channel 4 and the cylinder 5 has been designated by "upstream part” of the folding unit, and by “downstream part", the area of this unit. , which is between the drive channel 4 and the cylinder 6.
  • the part of the surface 7 which is located between the strip 31 and the cylinder 5 is called “introduction zone” and, “reception zone”, the part of the folding unit opposite the insertion zone on the conveyor belt 1.
  • the folding unit can be used to implement a method for folding substantially flat and flexible textile products and in particular quilts or thick blankets.
  • a first implementation of this folding process shown in FIGS. 3 a to 3 d , using the folding unit, consists in presenting a product 39, generally rectangular, by positioning it on the support surface 7 of the conveyor belt 1, downstream of the folding unit, in the insertion zone, at flat on said support surface 7.
  • This product 39 is then transported to the drive corridor 4.
  • the “leading edge” of a product is called the edge, referenced by 40 ⁇ which is, when the product 39 is upstream of the drive corridor 4, the closest to said corridor 4.
  • the edge 39 referenced by 40 ⁇ which is, when the product 39 is upstream of the drive corridor 4, the closest to said corridor 4.
  • This is programmed to trigger, when the leading edge 40 ⁇ of the product 39 arrives at the opening of the drive corridor 4, the pivoting of the rigid member 36 whose guide ramps 37 are raised to pass through the gaps 13 and extend from the surface 7 to the opening of the drive passage 4.
  • the leading edge 40 ⁇ is then pushed, by the conveyor belt 1 and the air jets of the tube 38, on the ramps 37, which guide it to said opening of the corridor 4.
  • the drive faces 19 and 24 of said corridor 4 are then actuated in a movement going from the carrying surface 7 towards the end of said corridor 4 la further from said carrier surface 7, as indicated by the arrows symbolizing the pivoting of the cylinders 15 and 22 in FIGS. 3 a and 3 b .
  • control unit When the place of said product where it is desired to obtain a fold, arrives at the opening of the corridor 4, the control unit reverses the movement of the drive belts 2 and 3, the direction in which the sides 19 and 24 of lane 4 now being directed from the end of said lane 4 furthest from surface 7 towards said surface 7, the movement of cylinders 15 and 22 being that indicated in FIG. 3 c .
  • the product 39 is transported by the conveyor belt 1 until the opening of the corridor 4, the control unit being programmed so that the rigid member 36 does not pivot, after detection of the passage of said product 39 by the infrared cell 20 ⁇ , until the leading edge 40 ⁇ is downstream of the folding unit, part of the product 39, remaining upstream of the corridor 4.
  • the rigid member 36 lifts, by the edges of the double blades 30 ⁇ , said product 39 until the opening of the drive corridor 4, the air jets of the tube 38 pressing said product 39 onto the ramp 37 and thus sketch a fold at its edges.
  • the faces 19 and 24 of the drive corridor 4 are simultaneously actuated in a directed movement from the surface 7 towards the end of the corridor 4, which is the furthest away from it, as indicated by the arrows symbolizing the pivoting of the cylinders 15 and 22, in FIGS. 4 a and 4 b .
  • the product 39, engaged in the corridor 4 is driven by clamping the faces 19 and 24 in double thickness towards the end of the corridor 4 opposite the surface 7, its fold being its part the further from the bearing surface 7, the movable frame being pushed downstream of the folding unit, the rods 28 returning to the ball sleeves 29.
  • the control unit is furthermore programmed so that, once the product 39 fully engaged in the drive lane 4, the direction of drive of the faces 19 and 24 of this lane 4 is reversed as indicated by the arrows symbolizing the movement of the cylinders 15 and 22, in FIG. 4 d .
  • the product 39 then descends towards the support surface 7. It falls folded thereon and is driven, for example, downstream of the folding unit by said surface 7, the movable frame returning to its initial position.
  • the product 39 is, in the same way as in the previous embodiment, transported to the corridor 4, until a part of this product 39 is located upstream of said corridor 4 and that part is located downstream.
  • the previously programmed control unit then rotates the rigid member 36 which engages, in the same way as previously, the product 29, in the corridor 4 by forming a fold on the edges of its double blades 30 ⁇ , the faces 19 and 24 of said corridor 4 driving the product 39 folded in a direction going from the carrying surface 7 towards the end of the corridor 4 opposite to said surface 7.
  • the product 39 By engaging in the corridor 4, the product 39 exerts an action against the surface 24 of the drive belt 3, which pushes the movable frame downstream of the folding unit and upwards, and widens the lane 4.
  • the direction of drive of the faces 19 and 24 of said lane 4 is then reversed, while part of said product 39 is still upstream of the folding unit, on the carrying surface 7.
  • the part of product 39 engaged in the passage 4 driven in the second direction of the drive direction emerges from lane 4 down and down on the part of the product 39 which has remained on the support surface 7 and transported by the latter to the downstream zone of the folding unit.
  • a second fold on the product 39 is thus formed, under the action of the air jets of the tube 38, at the place of the latter which, when the direction has been reversed drive of the corridor 4, was substantially at the angle of the surface 19 and the surface 7.
  • the folded product is then, for example, evacuated to a reception area.
  • FIGS. 6 a to 6 h a fourth embodiment of the method which uses, the second and third embodiments described above, in combination.
  • the product is folded according to two folds using the steps of the third embodiment of the method, that of the parts of the product 39 on which the part is folded of product 39 engaged in lane 4, being, once the latter cleared from said lane 4, both upstream and downstream of said lane 4.
  • the control unit actuates the rigid member 36, while the folded part of the product 39 is downstream of the drive passage 4 and part of the product 39 on the carrying surface 7 is still upstream of said passage 4, so as to lift the product 39 to form a third fold, which can be, as shown by way of example in the figures, substantially at the same level as the first of the folds formed.
  • the direction of entrainment is then again reversed, which is thus directed towards the end of the corridor 4 opposite the support surface 7.
  • the product, folded in four thicknesses then rises inside the drive corridor 4, these four thicknesses engaging in said corridor 4 and pushing the movable frame downstream of the folding unit.
  • the lengths of a product 39 between a fold and an edge or between two folds are all adjustable and are a function of the adjustment over time of the movements of the rigid member 36 and of the reversals of the directions of training.
  • other combinations from the previously explained modes of implementation, are possible.
  • a transfer unit may consist of an assembly, substantially identical to that of a folding unit, comprising a conveyor belt and a drive corridor delimited by two drive belts, the planes of this corridor and of these drive belts being, unlike those of a folding unit, not perpendicular but parallel to the conveying direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP90400420A 1989-03-24 1990-02-15 Vorrichtung zum Falten von ungefähr flächigen flexiblen Textilprodukten Withdrawn EP0390620A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903898A FR2644763B1 (fr) 1989-03-24 1989-03-24 Unite de pliage pour produit textile sensiblement plat et souple
FR8903898 1989-03-24

Publications (1)

Publication Number Publication Date
EP0390620A1 true EP0390620A1 (de) 1990-10-03

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Application Number Title Priority Date Filing Date
EP90400420A Withdrawn EP0390620A1 (de) 1989-03-24 1990-02-15 Vorrichtung zum Falten von ungefähr flächigen flexiblen Textilprodukten

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Country Link
EP (1) EP0390620A1 (de)
DE (1) DE390620T1 (de)
ES (1) ES2020172A4 (de)
FR (1) FR2644763B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5344379A (en) * 1992-09-30 1994-09-06 Vittorio Garrone Machine for folding sheets of paper
EP0803460A2 (de) * 1996-04-01 1997-10-29 WindmÀ¶ller & Hölscher Vorrichtung zum Legen einer Folienbahn in Z-förmige Falten
EP0849204A2 (de) * 1996-12-19 1998-06-24 Fmc Corporation Vorrichtung zum Falten von Säcken

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228703A1 (de) * 1973-05-09 1974-12-06 Windmoeller & Hoelscher
DE2453470A1 (de) * 1974-11-12 1976-09-23 Kleindienst & Co Vorrichtung zum querfalten von bereits laengsgefalteten flaechigen waeschestuecken
US4053150A (en) * 1976-03-08 1977-10-11 Cornelius Printing Co. Folder apparatus
FR2412485A2 (fr) * 1977-12-26 1979-07-20 Duflot Rene Machine a plier des nappes de tissu, telles que des draps
FR2424354A1 (fr) * 1978-04-24 1979-11-23 Duflot Rene Machine a plier un nombre quelconque de fois des nappes de tissus
EP0005671A1 (de) * 1978-05-19 1979-11-28 Michel Giovannini Maschine zum Falten von Zeichnungsbögen auf ein bestimmtes Format

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2228703A1 (de) * 1973-05-09 1974-12-06 Windmoeller & Hoelscher
DE2453470A1 (de) * 1974-11-12 1976-09-23 Kleindienst & Co Vorrichtung zum querfalten von bereits laengsgefalteten flaechigen waeschestuecken
US4053150A (en) * 1976-03-08 1977-10-11 Cornelius Printing Co. Folder apparatus
FR2412485A2 (fr) * 1977-12-26 1979-07-20 Duflot Rene Machine a plier des nappes de tissu, telles que des draps
FR2424354A1 (fr) * 1978-04-24 1979-11-23 Duflot Rene Machine a plier un nombre quelconque de fois des nappes de tissus
EP0005671A1 (de) * 1978-05-19 1979-11-28 Michel Giovannini Maschine zum Falten von Zeichnungsbögen auf ein bestimmtes Format

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5344379A (en) * 1992-09-30 1994-09-06 Vittorio Garrone Machine for folding sheets of paper
EP0803460A2 (de) * 1996-04-01 1997-10-29 WindmÀ¶ller & Hölscher Vorrichtung zum Legen einer Folienbahn in Z-förmige Falten
EP0803460A3 (de) * 1996-04-01 1999-04-21 WindmÀ¶ller & Hölscher Vorrichtung zum Legen einer Folienbahn in Z-förmige Falten
EP0849204A2 (de) * 1996-12-19 1998-06-24 Fmc Corporation Vorrichtung zum Falten von Säcken
EP0849204A3 (de) * 1996-12-19 1998-09-30 Fmc Corporation Vorrichtung zum Falten von Säcken

Also Published As

Publication number Publication date
FR2644763A1 (fr) 1990-09-28
ES2020172A4 (es) 1991-08-01
DE390620T1 (de) 1991-05-23
FR2644763B1 (fr) 1991-07-05

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