EP3243955B1 - Device for folding of textiles, preferably items of clothing - Google Patents

Device for folding of textiles, preferably items of clothing Download PDF

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Publication number
EP3243955B1
EP3243955B1 EP17000664.7A EP17000664A EP3243955B1 EP 3243955 B1 EP3243955 B1 EP 3243955B1 EP 17000664 A EP17000664 A EP 17000664A EP 3243955 B1 EP3243955 B1 EP 3243955B1
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EP
European Patent Office
Prior art keywords
folding
coupling arm
longitudinal
coupling
longitudinal folding
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EP17000664.7A
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German (de)
French (fr)
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EP3243955A1 (en
Inventor
Wilhelm Bringewatt
Jürgen Wolf
Engelbert Heinz
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.)
Herbert Kannegiesser GmbH and Co
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Herbert Kannegiesser GmbH and Co
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Priority claimed from DE102016007100.1A external-priority patent/DE102016007100A1/en
Application filed by Herbert Kannegiesser GmbH and Co filed Critical Herbert Kannegiesser GmbH and Co
Publication of EP3243955A1 publication Critical patent/EP3243955A1/en
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Publication of EP3243955B1 publication Critical patent/EP3243955B1/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F89/00Apparatus for folding textile articles with or without stapling

Definitions

  • the invention relates to a device for folding textiles, preferably items of clothing, according to the preamble of claim 1.
  • Textiles especially items of clothing such as coats, shirts, trousers or the like, are folded by devices of the type discussed here, referred to in technical jargon as folding machines. This is done by successive longitudinal and transverse folds or transverse and longitudinal folds. The folded textiles are then stacked and stacks of several folded textiles lying on top of one another are removed.
  • Known devices for folding textiles have a longitudinal folding station with a longitudinal folding support consisting of a central part and two longitudinal folding wings assigned to opposite longitudinal edges of the central part.
  • the longitudinal folding wings can be pivoted about axes of rotation running parallel to the longitudinal edges of the central part.
  • the longitudinal folding wings are pivoted pneumatically, namely by pneumatic cylinders.
  • the WO 2012/046227 A1 discloses an apparatus for folding fabrics.
  • the device is composed of three units, namely a gate-type unit, a folding unit and a collection unit.
  • the textiles to be folded are fed to the gate unit and provided with vertical folds. Thereafter, the textile provided with vertical folds is fed to the folding unit, which folds the textile with two horizontal folds. Then the completely folded textile is fed to the collecting unit, which stacks several folded textiles.
  • the gate unit that folds the respective textile and the folding unit have folding members that are actuated by electric motors. With the electric motors, the desired end positions of the folding elements cannot be approached precisely and also not in a load-sensitive manner.
  • the document DE 32 12 629 C2 describes a folding device according to the preamble of independent claim 1.
  • the invention is based on the object of creating a device for folding textiles, in particular items of clothing, which allows a high folding performance with the same precise and gentle folding, in particular longitudinal folds, of the textiles or items of clothing.
  • each longitudinal folding wing is formed by a servo drive, preferably a servo motor.
  • a servo drive preferably a servo motor.
  • These are precise and load-dependent, controllable electric motors that allow rapid pivoting of the respective longitudinal folding wing.
  • the rapid pivoting of the longitudinal folding wings leads to high folding performance.
  • the precise controllability of the servomotors enables the end of the pivoting process of the respective longitudinal folding panel used for longitudinal folding exactly after the required pivoting angle has been completed.
  • This pivoting angle or pivoting path depends on the type of textile or the type of fabric of the clothing items, especially the thickness.
  • the folding process can be precisely adapted to the type of material or fabric of the clothing or other textiles.
  • a load-sensitive control option for the servo motors or similar servo drives ensures that textiles or other items of clothing made from different materials or fabrics are only pressed together with a specific force.
  • the linkage enables a pivoting movement of the respective longitudinal folding wing that corresponds to the requirements when folding the garments or other textiles longitudinally.
  • the coupling mechanism preferably has at least two coupling arms which are connected to one another in an articulated manner at adjacent ends.
  • the coupling mechanism preferably has three coupling arms which are connected to one another in an articulated manner.
  • the articulated coupling arms represent a type of multi-link chain that enables the longitudinal folding wings to be pivoted in the manner required for longitudinal folding of the textiles, in particular items of clothing, in particular by about 180°, possibly also by up to 20° above or below. Each longitudinal folding wing can therefore move at least approximately on a semi-circular path through the coupling mechanism.
  • a rotationally drivable output shaft of the respective servomotor is non-rotatably connected to a free end of a first coupling arm.
  • the rotational movement of the output shaft of the servo motor can be implemented via the coupling gear, in particular at least one coupling arm following the first coupling arm, which enables a movement that leads to the desired pivoting of the respective longitudinal folding leaf, and above all also a pivoting of the respective longitudinal folding leaf by about 180° .
  • a particularly advantageous further development option of the device provides for the coupling gear to be designed in such a way that during the initial pivoting and/or at the end of the pivoting, the pivoting angle of the respective longitudinal folding leaf changes less than the angle of rotation of the servomotor compared to the angle of rotation of the output shaft of the servomotor. At least in the initial starting position of the linkage, i.e. at the beginning of the longitudinal folding process and/or the end of the longitudinal folding process, the change in the rotational angle of the output shaft of the servo motor is reduced compared to the change in the pivot angle of the respective longitudinal folding leaf. This reduction is preferably in the range from 0.7 to 0.3.
  • the coupling mechanism to be provided with the at least one second coupling arm which is articulated to the first coupling arm.
  • the mutually adjacent ends of the first and second coupling arms then form a pivot axis.
  • the first and second coupling arms are in a position relative to one another in which they enclose an acute angle at their connected ends relative to the pivot axis, which angle is preferably between 15° and 45°.
  • the torque exerted by the output shaft of the servo motor on the associated end of the first coupling arm to accelerate the coupling mechanism and the associated longitudinal folding wing from the starting position is relatively small. Only when the linkage with the longitudinal folding leaf is set in motion does the relative position change in particular between the first and second coupling arm in such a way that the respective longitudinal folding wing is moved increasingly faster into the longitudinal folding position. If necessary, it can behave analogously when braking the respective longitudinal folding panel after the end of the longitudinal folding process.
  • An advantageous further development possibility of the invention consists in designing the last coupling arm of the coupling mechanism, which is assigned to the respective longitudinal folding wing, as an angled arm and/or a multi-armed coupling arm. Accordingly, this coupling arm has more than two points that form a pivot axis and axes of rotation for articulation on the longitudinal folding wing and on a preceding coupling arm.
  • One end of the coupling arm is preferably articulated to a respective longitudinal folding wing, while the opposite end is articulated to a stationary pivot axis which runs parallel to the transport direction of the clothing item to be folded or another textile object.
  • a free end of, for example, the second coupling arm of the coupling mechanism is articulated between the ends of the third coupling arm.
  • the coupling mechanism can perform a defined movement and the respective longitudinal folding leaf can be pivoted on a defined path.
  • the longitudinal folding wing can also be pivoted relative to the end of the third coupling arm assigned to it in order to adapt to different fabric or material thicknesses of the textile article to be folded.
  • the third coupling arm assigned to the respective longitudinal folding leaf is angled, preferably by more than 90°, in particular 120° to 160°.
  • the entire linkage can be designed to be space-saving.
  • the third coupling arm can be articulated on its stationary pivot axis, the longitudinal folding flap and the preceding, preferably second, coupling arm.
  • the angled third coupling arm preferably has two free ends, one free end of which is assigned to the stationary pivot axis and the other free end to the longitudinal folding flap. At a The angled third coupling arm is articulated to a preceding coupling arm at a point lying between these ends.
  • This point is preferably closer to the end of the third coupling arm coupled to the longitudinal folding wing than to the end associated with its stationary pivot axis. This also contributes to the desired gear reduction at the beginning of the folding process, namely to moving the respective longitudinal folding wing out of its pivoted down initial position and/or to braking the respective longitudinal folding wing in the longitudinal folding position pivoted by preferably 180°.
  • a servo motor is preferably assigned to a feed conveyor of items of clothing or other textiles hanging on hangers in the direction of the first folding station, for example a transverse folding station or the longitudinal folding station.
  • Another servo motor can be assigned to a discharge conveyor for pulling folded hangers out of the garments or other textiles and for transporting empty hangers away.
  • servomotors because of their individual control options and relatively high speeds, achieve short cycle times and/or an exact, trouble-free movement of the device.
  • the 1 shows schematically a device for folding and subsequent stacking of items of clothing 10 or other textile objects.
  • the device has a folding device 11 and a stacking device 12 arranged downstream of this.
  • the items of clothing 10 are fed to the device shown here hanging on transport hangers, which are not shown in the figures.
  • the invention is not limited to this.
  • the garments 10 can be fed to the device in other ways.
  • the invention is also suitable for devices that do not have a stacking device 12 .
  • the garment 10 hanging on a transport hanger is fed to the folding device 11 of the device with a hanger feed conveyor 13.
  • a hanger feed conveyor 13 This has a preferably rectilinear conveying path on which hanger hooks of the transport hangers hang, preferably on a carriage that is guided by a conveyor line along the conveying path of the hanger feed conveyor 13 is moved on.
  • the conveyor line of the hanger feed conveyor 13 is driven by a servo motor 14 .
  • the items of clothing 10 reach a feed conveyor 15.
  • the transport hanger is folded in and pulled out of the item of clothing 10 and transported away by a hanger pull-out conveyor 16, which rises slightly in the conveying direction.
  • the transport hangers with their hanger hooks also hang on a carriage of a hanger extension conveyor 16 which is transported further along the conveying path of the hanger extension conveyor 16 by a circulating conveyor line.
  • the conveyor line of the pull-out conveyor 16 is driven by a further servomotor 17 assigned to the pull-out conveyor 16.
  • the feed conveyor 15 can already be a component of the first transverse folding station 18, namely form a first conveyor of the same.
  • the first transverse folding station 18 is equipped with a reversing and/or intermediate conveyor in a manner known per se 19 provided by the drive in different directions, the garment 10 through a transverse folding gap transported and in the process two layers of the garment 10, each comprising one half of the garment 10, are superimposed.
  • the item of clothing 10 provided with a first transverse fold is then transported to the longitudinal folding station 20 by an intermediate conveyor 19 .
  • the longitudinal folding station 20 has a central part 21, which is stationary in the exemplary embodiment shown, and two longitudinal folding wings 23 assigned to opposite longitudinal edges 22.
  • the longitudinal folding wings 23 are of identical design, but are assigned to the opposite longitudinal edges 22 of the central part 21 in a mirror-inverted orientation.
  • the central part 21 of the longitudinal folding station 20 of the device shown is designed as a belt conveyor with several narrow circulating conveyor belts next to one another or just one wide circulating conveyor belt, from which the item of clothing 10 can be transported into the longitudinal folding station 20 and removed after longitudinal folding.
  • the conveying direction of the central part 21, which has only one conveyor belt or several adjacent conveyor belts, runs in the longitudinal direction of the longitudinal folding station 20 and the longitudinal edges 22 of the central part 21.
  • the longitudinal direction of the longitudinal folding wings 23 also corresponds to the conveying direction.
  • the longitudinal folding station has at least one folding template, not shown in the figures.
  • the respective item of clothing 10 is transported between the at least one folding template and the upper run of the belt conveyor of the central part 21 and into and through the longitudinal folding station 20 .
  • the at least one folding template is located above each item of clothing 10 to be folded lengthwise.
  • opposite edge regions of the item of clothing 10 are folded one after the other by about 180° onto the center of the torso of the item of clothing 10 located on the central part 21 of the longitudinal folding station 20.
  • the item of clothing 10 folded once transversely and once longitudinally is transported in the device shown here through a subsequent second transverse folding station 24 and folded transversely a second time if necessary (i.e. optionally).
  • This second transverse folding station 24 is also designed in a manner known per se.
  • the finished folded items of clothing 10 are transported from the second transverse folding station 24 to a stacking station 25 .
  • This has a storage table which is designed as a short belt conveyor 26 .
  • the short belt conveyor 26 can be moved up and down by a lifting device 27, preferably in cycles.
  • the lifting device 27 has a linear drive 28 for cyclically moving the belt conveyor 26 up and down.
  • the linear drive is actuated by a servomotor 29.
  • the short belt conveyor 26 can be lowered quickly and by a distance corresponding exactly to the requirements by the linear drive 28.
  • This lowering takes place in such a way that on the short belt conveyor 26 of the stacking station 25 folded items of clothing 10 can be gradually deposited one on top of the other to form a stack.
  • the short belt conveyor 26 with the stack of several folded items of clothing 10 lying on it is first lowered by the linear drive 28 and then powered up again to compress the stack as required.
  • a counter-holder for example a pressure plate, is moved over the stack and the stack is pressed from below against this pressure plate, specifically with a predetermined force.
  • the short belt conveyor 26 and the stacking station 25 are provided with their own drive.
  • This drive can be realized in different ways.
  • the drive can also be a separate, dedicated servo motor for the short belt conveyor 26 .
  • Each of the longitudinal folding wings 23, which are of the same design and are mirror-inverted to the opposite longitudinal edges 22 of the central part 21 of the longitudinal folding station 20, is controlled by a servo drive, preferably an electrically operated servo motor 30 an axis of rotation 31 running at a parallel distance next to the respective longitudinal edge 22 of the central part 21 can be folded over by approximately 180° in opposite directions.
  • the axes of rotation 31, like the longitudinal edges 22 of the central part 21, run in the longitudinal direction of the longitudinal folding station 20.
  • the 2 shows both longitudinal folding wings 23 in their horizontal starting position on opposite sides of the central part 21.
  • the bearing surfaces 32 for the item of clothing 10 on the longitudinal folding wings 23, which are horizontal in the starting position, run approximately in the same horizontal plane of the longitudinal folding station 20.
  • the bearing surfaces 32 of the longitudinal folding wing 23 widen the middle part 21 on both sides.
  • An edge region of the garment 10 to be folded longitudinally by each longitudinal folding wing 23 in the longitudinal folding station 20 rests on the supporting surface 32 of each longitudinal folding wing 23 .
  • This edge area is preferably somewhat narrower than a middle area of the item of clothing 10 which rests on the middle part 21 of the longitudinal folding station 20 .
  • the bearing surfaces 32 of the longitudinal folding wings 23 are somewhat narrower than the width of the central part 21.
  • a linkage 33 is provided between each longitudinal folding wing 23 and the servo motor 30 for pivoting each longitudinal folding wing 23 .
  • the linkage 33 of both longitudinal folding wings 23 are of the same design apart from their mirror-inverted arrangement.
  • Each coupling mechanism 33 essentially has three coupling arms, specifically a first coupling arm 34, a second coupling arm 35 and a third coupling arm 36.
  • the first coupling arm 34 and the second coupling arm 35 are essentially straight.
  • the first coupling arm 34 is non-rotatably connected at one end to an output shaft of the servomotor 30 for actuating the linkage 33 .
  • An opposite end of the first coupling arm 34 is connected in an articulated manner to an end of the second coupling arm 35 pointing thereto, namely pivotably about a horizontal axis of rotation parallel to the longitudinal edge 22 of the central part 21 .
  • An opposite end of the second coupling arm 35 is articulated to the third coupling arm 36, specifically also rotatably about an axis of rotation. This axis of rotation runs parallel to the axis of rotation between the first coupling arm 34 and the second coupling arm 35.
  • the third coupling arm 36 has a curved or angled course.
  • the arc or the bend extends over a range of 110° to 160°, preferably 120° to 150°. In the exemplary embodiment shown, the angling or arc area is approximately 135°.
  • One end of the third coupling arm 36 is provided with a Pivot axis 37 rotatably connected.
  • This pivot axis 37 also defines the axis of rotation 31 of the respective longitudinal folding wing 23.
  • the pivot axis 37 runs parallel next to a respective longitudinal edge 22 of the central part 21, specifically at a small distance next to the longitudinal edge 22 and somewhat below the upper run of the belt conveyor of the central part 21.
  • An opposite end of the third coupling arm 36 is articulated on the respective longitudinal folding wing 23 so as to be pivotable about an axis of rotation 38 .
  • This axis of rotation 38 runs parallel to the pivot axis 37.
  • the axis of rotation 38 is assigned eccentrically to the longitudinal folding wing 23 in such a way that it is about a quarter of the width of the longitudinal folding wing 23 away from its outer edge 39.
  • the coupling arm 36 is assigned a further pivot axis 40, on which the second coupling arm 35 is articulated, specifically with its end opposite the end articulated on the first coupling arm 34.
  • the pivot axis 40 is closer to the pivot axis 38 at one end of the coupling arm 36 than to the pivot axis 37 of the opposite end of the coupling arm 36. Due to the angled or arcuate design of the third coupling arm 36, the pivot axis 40 is not on a line between the pivot axis 37 and the axis of rotation 38, but (based on the representation of the 2 ) below this line.
  • pivot axis 37 and the axes of rotation 38 and 40 of the third coupling arm 36 lie on the corners of a triangle. This is a scalene triangle, with the axis of rotation 40 being somewhat closer to the axis of rotation 38 .
  • the 3 shows an intermediate position of a longitudinal folding wing 23 pivoted up by about 90°, namely of the (based on the representation of 3 ) left longitudinal folding wing 23.
  • the 4 shows the left longitudinal folding wing 23 in the final folding position, ie in a position at an angle of about 180° to that in FIG 2 shown starting position, in which the left longitudinal folding wing 23 has folded the left edge area of the item of clothing 10 lengthwise, so that this longitudinally folded left edge area of the item of clothing 10 lies on the middle part of the same and the longitudinal fold line running in the longitudinal direction is approximately above the left longitudinal edge 22 of the middle part 21 located.
  • This position of the left-hand longitudinal fold line in relation to the left-hand longitudinal edge 22 of the central part 21 is predetermined by the corresponding folding template.
  • the longitudinal fold line runs parallel to the left longitudinal edge 22 of the central part 21, but is slightly offset inwards from the longitudinal edge 22 towards the center of the central part 21.
  • FIGS. 5 and 6 show the initial position and the final folded position of the left longitudinal folding wing 23 with a schematically illustrated linkage 33.
  • the schematic representation of the coupling mechanism 33 shows that the first and second coupling arms 34, 35 are approximately the same length.
  • the distance between the pivot axis 37 and the axis of rotation 38 is about the same as the length of the coupling arms 34, 35. This distance can also be smaller, preferably by 10% to 20%.
  • the distance between the third axis, namely the Axis of rotation 40 of the coupling arm 36 from an imaginary connecting line between the pivot axis 37 and the axis of rotation 38 is somewhat smaller than the distance between the axis of rotation 37 and the axis of rotation 38, amounts to only about two thirds of the total distance between the axis of rotation 37 and the axis of rotation 38 .
  • This reduction is about 0.4 to 0.6 in the embodiment shown.
  • the situation is analogous when braking or decelerating the longitudinal folding wing 23 before it reaches its in the 4 and 6 shown final folding position.
  • the deceleration can also take place with a slight translation, which differs significantly from the translation in the movement of the longitudinal folding wing 23 between the initial and the final folding position.
  • the translation when braking or decelerating the longitudinal folding wing 23 is only about 1.4 to 1.7. The This means that with a 10° angular movement of the output shaft of the servomotor 30, the longitudinal folding wing 23 is pivoted between 14° and 17°.
  • the linkage enables a higher gear ratio, in which the longitudinal folding wing 23 can be pivoted by a much larger pivoting range in relation to the rotation angle of the output shaft of the servo motor 30 .
  • the coupling mechanism 33 is designed in such a way that, at least in the starting position of the respective longitudinal folding leaf 23, the output axis of the servomotor 30 and the axis of rotation 40, with which the free end of the second coupling arm 35 is connected to the third coupling arm 36, are close together. Provision is preferably made for the axis of rotation 40 between the second coupling arm 35 and the third coupling arm 36 and the output axis of the servomotor 30 to be closest together in the starting position. Accordingly, the distance between the axis of rotation 40 and the output axis of the servo motor 30, starting from the starting position of the longitudinal folding wing 23, becomes increasingly greater.
  • the distance can become smaller again during the pivoting of the longitudinal folding wing 23 before the final folding station of the longitudinal folding flap 23 is reached.
  • the output shaft of the servomotor 30 and the pivot axis 37 of the third coupling arm 36 of the coupling mechanism 33 do not change their distance because they are fixed end points of the coupling mechanism 33 .
  • the distance between the pivot axis 37 and the longitudinal center axis of the output shaft of the servo motor 30 is selected to be relatively small, in that it corresponds to one third to two thirds, preferably half the length of the first coupling arm 34 and/or second coupling arm 35.
  • the servomotor 30 is driven by an electric motor. These are electric motors with programmable logic controllers (PLC controllers). Such servomotors, in particular the servomotor 30, can be controlled exactly as required in terms of their speed and thus in terms of the maximum torque that can be output. In particular, the servomotors can be programmed as desired, in particular with any speed curves. It is also possible, at least servo motors 30 for the actuation of the linkage 33 of Longitudinal folding wings 23 to control load sensitive. It is then possible to adapt the folding path and folding angle of the longitudinal folding flaps 23 to different materials, in particular materials of different thicknesses, of the items of clothing 10 .
  • PLC controllers programmable logic controllers
  • the longitudinal folding wings 23 always exert the same compressive force on the longitudinally folded outer edge region of the clothing item 10 in question, regardless of the material thickness of the clothing item 10 in their final folding position. It is also possible to vary this compressive force according to the type of fabric of the garments 10.
  • the servo drives, in particular the servo motors 30 assigned to the longitudinal folding wings 23, ensure that the items of clothing 10 are folded as required, possibly also depending on their type of fabric, fabric thickness and/or the intended use or the type of item of clothing 10.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Falten von Textilien, vorzugsweise Bekleidungsstücken, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for folding textiles, preferably items of clothing, according to the preamble of claim 1.

Von im Fachjargon als Faltautomaten bezeichneten Vorrichtungen der hier angesprochenen Art werden Textilien, vor allem Bekleidungsstücke wie zum Beispiel Kittel, Hemden, Hosen oder dergleichen, gefaltet. Dies geschieht durch aufeinanderfolgendes Längs- und Querfalten bzw. Quer- und Längsfalten. Die gefalteten Textilien werden anschließend gestapelt und Stapel mehrerer übereinanderliegender gefalteter Textilien abgefördert.Textiles, especially items of clothing such as coats, shirts, trousers or the like, are folded by devices of the type discussed here, referred to in technical jargon as folding machines. This is done by successive longitudinal and transverse folds or transverse and longitudinal folds. The folded textiles are then stacked and stacks of several folded textiles lying on top of one another are removed.

Bekannte Vorrichtungen zum Falten von Textilien verfügen über eine Längsfaltstation mit einer Längsfaltauflage aus einem Mittelteil und zwei gegenüberliegenden Längsrändern des Mittelteils zugeordneten Längsfaltflügel. Die Längsfaltflügel sind um parallel zu den Längsrändern des Mittelteils verlaufende Drehachsen verschwenkbar. Das Verschwenken der Längsfaltflügel erfolgt bei bekannten Vorrichtungen dieser Art pneumatisch, nämlich durch Pneumatikzylinder. Diese verfügen über mehrere Nachteile. Vor allem ermöglichen sie nur begrenzte Schwenkgeschwindigkeiten der Längsfaltflügel. Außerdem lassen sich die Endpositionen der Pneumatikzylinder nicht präzise und auch nicht lastsensibel anfahren.Known devices for folding textiles have a longitudinal folding station with a longitudinal folding support consisting of a central part and two longitudinal folding wings assigned to opposite longitudinal edges of the central part. The longitudinal folding wings can be pivoted about axes of rotation running parallel to the longitudinal edges of the central part. In known devices of this type, the longitudinal folding wings are pivoted pneumatically, namely by pneumatic cylinders. These have several disadvantages. Above all, they allow only limited pivoting speeds of the longitudinal folding wings. In addition, the end positions of the pneumatic cylinders cannot be approached precisely and not in a load-sensitive manner.

Die WO 2012/046227 A1 offenbart eine Vorrichtung zum Falten von Textilien. Die Vorrichtung setzt sich aus drei Einheiten zusammen, und zwar eine torartige Einheit, eine Klappeinheit und eine Sammeleinheit. Die zu faltenden Textilien werden der Toreinheit zugeführt und von dieser mit Vertikalfaltungen versehen. Danach wird die mit Vertikalfaltungen versehene Textilie der Klappeinheit zugeführt, die die Textilie mit zwei horizontalen Faltungen versieht. Anschließend wird die vollständig gefaltete Textilie der Sammeleinheit zugeführt, die mehrere gefaltete Textilien stapelt. Die das Falten der jeweiligen Textilie vornehmende Toreinheit und die Klappeinheit verfügen über von Elektromotoren betätigte Faltorgane. Mit den Elektromotoren lassen sich die gewünschten Endpositionen der Faltorgane nicht präzise und auch nicht lastsensibel anfahren.The WO 2012/046227 A1 discloses an apparatus for folding fabrics. The device is composed of three units, namely a gate-type unit, a folding unit and a collection unit. The textiles to be folded are fed to the gate unit and provided with vertical folds. Thereafter, the textile provided with vertical folds is fed to the folding unit, which folds the textile with two horizontal folds. Then the completely folded textile is fed to the collecting unit, which stacks several folded textiles. The gate unit that folds the respective textile and the folding unit have folding members that are actuated by electric motors. With the electric motors, the desired end positions of the folding elements cannot be approached precisely and also not in a load-sensitive manner.

Das Dokument DE 32 12 629 C2 beschreibt eine Faltvorrichtung gemäß dem Oberbegriff des unabhängigen Anspruchs 1.The document DE 32 12 629 C2 describes a folding device according to the preamble of independent claim 1.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Falten von Textilien, insbesondere Bekleidungsstücken, zu schaffen, die eine hohe Faltleistung beim gleichwohl exakten und schonenden Falten, insbesondere Längsfalten, der Textilien bzw. Bekleidungsstücke zulässt.The invention is based on the object of creating a device for folding textiles, in particular items of clothing, which allows a high folding performance with the same precise and gentle folding, in particular longitudinal folds, of the textiles or items of clothing.

Eine Vorrichtung zur Lösung dieser Aufgabe weist die Merkmale des Anspruchs 1 auf. Demnach ist es vorgesehen, dass der Antrieb jedes, Längsfaltflügels von einem Servoantrieb, vorzugsweise einem Servomotor, gebildet ist. Hierbei handelt es sich um präzise und lastabhängige steuerbare Elektromotoren, die ein rasches Verschwenken des jeweiligen Längsfaltflügels zulassen. Das rasche Verschwenken der Längsfaltflügel führt zu hohen Faltleistungen. Die präzise Steuerbarkeit der Servomotoren ermöglicht die Beendigung des zum Längsfalten dienenden Schwenkvorgangs des jeweiligen Längsfaltflügels exakt nach dem Absolvieren des erforderlichen Schwenkwinkels. Dieser Schwenkwinkel bzw. Schwenkweg ist abhängig von der Textilart bzw. der Gewebeart der Bekleidungsstücke, vor allem die Dicke. Dadurch kann der Faltvorgang exakt an die Material- bzw. Gewebeart der Bekleidungsstücke oder sonstiger Textilien angepasst werden. Eine lastsensible Steuermöglichkeit der Servomotoren oder ähnlicher Servoantriebe stellt sicher, dass Textilien oder andere Bekleidungsstücke unterschiedlicher Material- bzw. Gewebeart nur mit einer bestimmten Kraft zusammengedrückt werden.A device for solving this problem has the features of claim 1. Accordingly, it is provided that the drive of each longitudinal folding wing is formed by a servo drive, preferably a servo motor. These are precise and load-dependent, controllable electric motors that allow rapid pivoting of the respective longitudinal folding wing. The rapid pivoting of the longitudinal folding wings leads to high folding performance. The precise controllability of the servomotors enables the end of the pivoting process of the respective longitudinal folding panel used for longitudinal folding exactly after the required pivoting angle has been completed. This pivoting angle or pivoting path depends on the type of textile or the type of fabric of the clothing items, especially the thickness. As a result, the folding process can be precisely adapted to the type of material or fabric of the clothing or other textiles. A load-sensitive control option for the servo motors or similar servo drives ensures that textiles or other items of clothing made from different materials or fabrics are only pressed together with a specific force.

Bevorzugt ist es vorgesehen, dass der jeweilige Servomotor über ein Koppelgetriebe, vorzugsweise ein mehrgliedriges Koppelgetriebe, mit dem ihm zugeordneten Längsfaltflügel verbunden ist. Das Koppelgetriebe ermöglicht eine den Anforderungen entsprechende Schwenkbewegung des jeweiligen Längsfaltflügels beim Längsfalten der Bekleidungsstücke oder sonstiger Textilien.Provision is preferably made for the respective servomotor to be connected to the longitudinal folding leaf assigned to it via a coupling mechanism, preferably a multi-element coupling mechanism. The linkage enables a pivoting movement of the respective longitudinal folding wing that corresponds to the requirements when folding the garments or other textiles longitudinally.

Das Koppelgetriebe weist bevorzugt mindestens zwei an benachbarten Enden gelenkig miteinander verbundene Koppelarme auf. Bevorzugt verfügt das Koppelgetriebe über drei gelenkig miteinander verbundene Koppelarme. Die gelenkig miteinander verbundenen Koppelarme stellen eine Art Mehrgelenkkette dar, die es ermöglicht, die Längsfaltflügel auf erforderliche Weise zum Längsfalten der Textilien, insbesondere Bekleidungsstücke, zu verschwenken, und zwar insbesondere um etwa 180°, gegebenenfalls auch um bis zu 20° darüber oder darunter. Durch das Koppelgetriebe kann demnach jeder Längsfaltflügel sich mindestens annähernd auf einer Halbkreisbahn bewegen.The coupling mechanism preferably has at least two coupling arms which are connected to one another in an articulated manner at adjacent ends. The coupling mechanism preferably has three coupling arms which are connected to one another in an articulated manner. The articulated coupling arms represent a type of multi-link chain that enables the longitudinal folding wings to be pivoted in the manner required for longitudinal folding of the textiles, in particular items of clothing, in particular by about 180°, possibly also by up to 20° above or below. Each longitudinal folding wing can therefore move at least approximately on a semi-circular path through the coupling mechanism.

Gemäß einer vorteilhaften Ausgestaltungsmöglichkeit der Vorrichtung ist eine drehend antreibbare Abtriebswelle des jeweiligen Servomotors mit einem freien Ende eines ersten Koppelarms unverdrehbar verbunden. Dadurch ist die Drehbewegung der Abtriebswelle des Servomotors über das Koppelgetriebe, insbesondere mindestens einen den ersten Koppelarm nachfolgenden Koppelarm, umsetzbar, die eine Bewegung, die zum gewünschten Verschwenken des jeweiligen Längsfaltflügels führt, und vor allem auch ein Verschwenken des jeweiligen Längsfaltflügels um etwa 180° ermöglicht.According to an advantageous possible embodiment of the device, a rotationally drivable output shaft of the respective servomotor is non-rotatably connected to a free end of a first coupling arm. As a result, the rotational movement of the output shaft of the servo motor can be implemented via the coupling gear, in particular at least one coupling arm following the first coupling arm, which enables a movement that leads to the desired pivoting of the respective longitudinal folding leaf, and above all also a pivoting of the respective longitudinal folding leaf by about 180° .

Eine besonders vorteilhafte Weiterbildungsmöglichkeit der Vorrichtung sieht es vor, das Koppelgetriebe so auszubilden, dass beim anfänglichen Verschwenken und/oder zum Schluss des Verschwenkens sich der Schwenkwinkel des jeweiligen Längsfaltflügels im Vergleich zum Drehwinkel der Abtriebswelle des Servomotors weniger ändert als der Verdrehwinkel des Servomotors. Es findet so mindestens in der anfänglichen Ausgangsstellung des Koppelgetriebes, also zu Beginn des Längsfaltvorgangs und/oder Ende des Längsfaltvorgangs, eine Untersetzung der Drehwinkeländerung der Abtriebswelle des Servomotors gegenüber der Schwenkwinkeländerung des jeweiligen Längsfaltflügels statt. Diese Untersetzung liegt bevorzugt im Bereich von 0,7 bis 0,3. Das bedeutet bei einem Verdrehen der Abtriebswelle des Servomotors um 90° beim Verschwenken des jeweiligen Längsfaltflügels um lediglich 63° bis 27°. Durch diese Untersetzung ist es mit einem kleinen Servomotor mit einer relativ geringen Leistung möglich, die nötige Kraft zum Beschleunigen des jeweiligen Längsfaltflügels aus seiner Anfangsposition heraus und vorzugsweise auch zum Abbremsen des Längsfaltflügels beim Erreichen seiner Endposition bereitzustellen.A particularly advantageous further development option of the device provides for the coupling gear to be designed in such a way that during the initial pivoting and/or at the end of the pivoting, the pivoting angle of the respective longitudinal folding leaf changes less than the angle of rotation of the servomotor compared to the angle of rotation of the output shaft of the servomotor. At least in the initial starting position of the linkage, i.e. at the beginning of the longitudinal folding process and/or the end of the longitudinal folding process, the change in the rotational angle of the output shaft of the servo motor is reduced compared to the change in the pivot angle of the respective longitudinal folding leaf. This reduction is preferably in the range from 0.7 to 0.3. This means that if the output shaft of the servo motor is rotated by 90° when the respective longitudinal folding leaf is pivoted by only 63° to 27°. This reduction makes it possible with a small servomotor with relatively low power to provide the force required to accelerate the respective longitudinal folding wing from its initial position and preferably also to decelerate the longitudinal folding wing when it reaches its end position.

Eine andere Ausgestaltungsmöglichkeit der Vorrichtung sieht es vor, das Koppelgetriebe mit dem mindestens einen gelenkig mit dem ersten Koppelarm verbundenen zweiten Koppelarm zu versehen. Die zueinander gerichteten benachbarten Enden des ersten und zweiten Koppelarms bilden dann eine Schwenkachse. Dabei sind zu Beginn des Längsfaltvorgangs, wenn die Längsfaltflügel sich noch in ihrer Ausgangsstellung befinden, der erste und zweite Koppelarm in einer Relativstellung zueinander, in der sie bezogen auf die Schwenkachse an ihren miteinander verbundenen Enden einen spitzen Winkel einschließen, der bevorzugt zwischen 15° und 45° liegt. Aufgrund dieser Relativanordnung des ersten und zweiten Koppelarms zu Beginn des Längsfaltvorgans ist das von der Abtriebswelle des Servomotors auf das dieser zugeordnete Ende des ersten Koppelarms ausübende Drehmoment zur Beschleunigung des Koppelgetriebes und des diesem zugeordneten Längsfaltflügels aus der Ausgangsstellung relativ klein. Erst wenn das Koppelgetriebe mit dem Längsfaltflügel in Bewegung gesetzt ist, ändert sich die Relativposition insbesondere zwischen dem ersten und zweiten Koppelarm derart, dass der jeweilige Längsfaltflügel zunehmend schneller in die Längsfaltposition bewegt wird. Gegebenenfalls kann es sich analog beim Abbremsen des jeweiligen Längsfaltflügels nach Beendigung des Längsfaltvorgangs verhalten.Another possible embodiment of the device provides for the coupling mechanism to be provided with the at least one second coupling arm which is articulated to the first coupling arm. The mutually adjacent ends of the first and second coupling arms then form a pivot axis. At the beginning of the longitudinal folding process, when the longitudinal folding wings are still in their initial position, the first and second coupling arms are in a position relative to one another in which they enclose an acute angle at their connected ends relative to the pivot axis, which angle is preferably between 15° and 45°. Due to this relative arrangement of the first and second coupling arms at the beginning of the longitudinal folding process, the torque exerted by the output shaft of the servo motor on the associated end of the first coupling arm to accelerate the coupling mechanism and the associated longitudinal folding wing from the starting position is relatively small. Only when the linkage with the longitudinal folding leaf is set in motion does the relative position change in particular between the first and second coupling arm in such a way that the respective longitudinal folding wing is moved increasingly faster into the longitudinal folding position. If necessary, it can behave analogously when braking the respective longitudinal folding panel after the end of the longitudinal folding process.

Eine vorteilhafte Weiterbildungsmöglichkeit der Erfindung besteht darin, den letzten Koppelarm des Koppelgetriebes, der dem jeweiligen Längsfaltflügel zugeordnet ist, als einen Winkelarm und/oder mehrarmigen Koppelarm auszubilden. Demnach verfügt dieser Koppelarm über mehr als zwei Stellen, die eine Schwenkachse und Drehachsen zur Anlenkung am Längsfaltflügel und an einem vorangehenden Koppelarm bilden.An advantageous further development possibility of the invention consists in designing the last coupling arm of the coupling mechanism, which is assigned to the respective longitudinal folding wing, as an angled arm and/or a multi-armed coupling arm. Accordingly, this coupling arm has more than two points that form a pivot axis and axes of rotation for articulation on the longitudinal folding wing and on a preceding coupling arm.

Vorzugsweise ist mit einem Ende der Koppelarm gelenkig mit jeweils einem Längsfaltflügel verbunden, während das gegenüberliegende Ende an eine ortsfeste Schwenkachse angelenkt ist, die parallel zur Transportrichtung des zu faltenden Bekleidungsstücks oder eines anderen textilen Gegenstands verläuft. Zwischen den Enden des dritten Koppelarms ist ein freies Ende des zum Beispiel zweiten Koppelarms des Koppelgetriebes angelenkt. Infolge der Anlenkung dieses dritten Koppelarms an einer ortsfesten Schwenkachse kann das Koppelgetriebe eine definierte Bewegung ausführen und dabei der jeweilige Längsfaltflügel auf einer definierten Bahn verschwenkt werden. Dabei kann der Längsfaltflügel zur Anpassung an unterschiedliche Gewebe- bzw. Materialdicken des jeweils zu faltenden Textilgegenstands auch relativ zum ihm zugeordneten Ende des dritten Koppelarms verschwenkt werden.One end of the coupling arm is preferably articulated to a respective longitudinal folding wing, while the opposite end is articulated to a stationary pivot axis which runs parallel to the transport direction of the clothing item to be folded or another textile object. A free end of, for example, the second coupling arm of the coupling mechanism is articulated between the ends of the third coupling arm. As a result of the articulation of this third coupling arm on a stationary pivot axis, the coupling mechanism can perform a defined movement and the respective longitudinal folding leaf can be pivoted on a defined path. In this case, the longitudinal folding wing can also be pivoted relative to the end of the third coupling arm assigned to it in order to adapt to different fabric or material thicknesses of the textile article to be folded.

Bevorzugt ist es vorgesehen, die Abtriebswelle des Servomotors parallel verlaufend zur ortsfesten Schwenkachse des am jeweiligen Längsfaltflügel angelenkten dritten Koppelarms anzuordnen. Durch die parallele Drehachse der Abtriebswelle des Servomotors und Schwenkachse des dritten Koppelarms sind alle Koppelarme des Koppelgetriebes in einer Ebene bewegbar, die quer zur Dreh- und Schwenkachse verläuft.Provision is preferably made for the output shaft of the servo motor to be arranged so as to run parallel to the stationary pivot axis of the third coupling arm articulated on the respective longitudinal folding leaf. Due to the parallel axis of rotation of the output shaft of the servomotor and the pivot axis of the third coupling arm, all the coupling arms of the coupling mechanism can be moved in a plane that runs transversely to the axis of rotation and pivot.

Eine andere vorteilhafte Ausgestaltungsmöglichkeit der Vorrichtung sieht es vor, dass der dem jeweiligen Längsfaltflügel zugeordnete dritte Koppelarm abgewinkelt ist, vorzugsweise um mehr als 90°, insbesondere 120° bis 160°. Dadurch lässt sich das gesamte Koppelgetriebe raumsparend ausbilden. Infolge der Abwinklung kann der dritte Koppelarm an seiner ortsfesten Schwenkachse, der Längsfaltklappe und dem vorangehenden, vorzugsweise zweiten, Koppelarm angelenkt werden. Bevorzugt verfügt der abgewinkelte dritte Koppelarm über zwei freie Enden, bei denen ein freies Ende der ortsfesten Schwenkachse und das andere freie Ende der Längsfaltklappe zugeordnet ist. An einer zwischen diesen Enden liegenden Stelle ist der abgewinkelte dritte Koppelarm mit einem vorangehenden Koppelarm gelenkig verbunden. Diese Stelle liegt bevorzugt dichter an dem am Längsfaltflügel angekoppelten Ende des dritten Koppelarms als dem seiner ortsfesten Schwenkachse zugeordneten Ende. Das trägt auch zur angestrebten Untersetzung zu Beginn des Faltvorgangs, nämlich zum Herausbewegen des jeweiligen Längsfaltflügels aus seiner heruntergeschwenkten Ausgangsstellung und/oder zum Abbremsen des jeweiligen Längsfaltflügels in der um vorzugsweise 180° umgeschwenkten Längsfaltstellung, bei.Another advantageous embodiment option of the device provides that the third coupling arm assigned to the respective longitudinal folding leaf is angled, preferably by more than 90°, in particular 120° to 160°. As a result, the entire linkage can be designed to be space-saving. As a result of the angling, the third coupling arm can be articulated on its stationary pivot axis, the longitudinal folding flap and the preceding, preferably second, coupling arm. The angled third coupling arm preferably has two free ends, one free end of which is assigned to the stationary pivot axis and the other free end to the longitudinal folding flap. At a The angled third coupling arm is articulated to a preceding coupling arm at a point lying between these ends. This point is preferably closer to the end of the third coupling arm coupled to the longitudinal folding wing than to the end associated with its stationary pivot axis. This also contributes to the desired gear reduction at the beginning of the folding process, namely to moving the respective longitudinal folding wing out of its pivoted down initial position and/or to braking the respective longitudinal folding wing in the longitudinal folding position pivoted by preferably 180°.

Es ist denkbar, die Vorrichtung mit weiteren Servomotoren zu versehen. Ein Servomotor ist bevorzugt einem Zuführförderer von an Bügeln hängenden Bekleidungsstücken oder sonstigen Textilien in Richtung zur ersten Faltstation, beispielsweise einer Querfaltstation oder der Längsfaltstation, zugeordnet. Ein anderer Servomotor kann einem Abförderer zum Herausziehen eingeklappter Bügel aus den Bekleidungsstücken oder sonstigen Textilien und zum Abtransport leerer Bügel zugeordnet sein. Auch im Zusammenhang mit den vorgenannten Transportaufgaben erfüllen Servomotoren wegen ihrer individuellen Steuerungsmöglichkeiten und relativ großer Geschwindigkeiten kurze Taktzeiten und/oder einen exakten, störungsfreien Bewegungsablauf der Vorrichtung.It is conceivable to provide the device with additional servomotors. A servo motor is preferably assigned to a feed conveyor of items of clothing or other textiles hanging on hangers in the direction of the first folding station, for example a transverse folding station or the longitudinal folding station. Another servo motor can be assigned to a discharge conveyor for pulling folded hangers out of the garments or other textiles and for transporting empty hangers away. Also in connection with the aforementioned transport tasks, servomotors, because of their individual control options and relatively high speeds, achieve short cycle times and/or an exact, trouble-free movement of the device.

Ein bevorzugtes Ausführungsbeispiel der Vorrichtung wird nachfolgend anhand der Zeichnung näher erläutert. In dieser zeigen:

Fig. 1
eine schematische, teilweise geschnittene Seitenansicht der Vorrichtung,
Fig. 2
einen Querschnitt durch eine Längsfaltstation mit beiden sich in der Ausgangsstellung befindenden Längsfaltflügeln,
Fig. 3
einen Querschnitt durch die Längsfaltstation analog zu Fig. 2 mit einem teilweise hochgeschwenkten Längsfaltflügel,
Fig. 4
einen Schnitt durch die Längsfalteinrichtung analog zu den Fig. 2 und 3 bei einem in die Endfaltstellung verschwenkten Längsfaltflügel,
Fig. 5
eine vereinfachte Prinzipdarstellung der Längsfaltstation mit einem in der Ausgangsstellung (analog zu Fig. 2) sich befindenden Längsfaltflügel, und
Fig. 6
eine Darstellung analog zu Fig. 5 mit in der Endfaltstellung (analog zur Fig. 4) sich befindendem Längsfaltflügel.
A preferred embodiment of the device is explained in more detail below with reference to the drawing. In this show:
1
a schematic, partially sectioned side view of the device,
2
a cross section through a longitudinal folding station with both longitudinal folding wings in the starting position,
3
a cross section through the longitudinal folding station analogous to 2 with a partially raised longitudinal folding wing,
4
a section through the longitudinal folding device analogous to that Figures 2 and 3 in the case of a longitudinal folding wing pivoted into the final folding position,
figure 5
a simplified schematic diagram of the longitudinal folding station with one in the initial position (analogous to 2 ) located longitudinal folding wings, and
6
a representation analogous to figure 5 with in the final folding position (analogous to 4 ) located longitudinal folding wing.

Die Fig. 1 zeigt schematisch eine Vorrichtung zum Falten und anschließenden Stapeln von Bekleidungsstücken 10 oder auch anderen textilen Gegenständen. Die Vorrichtung verfügt über eine Falteinrichtung 11 und eine dieser nachgeordneten Stapeleinrichtung 12. Der hier gezeigten Vorrichtung werden die Bekleidungsstücke 10 an in den Figuren nicht gezeigten Transportbügeln hängend zugeführt. Die Erfindung ist aber hierauf nicht beschränkt. Die Bekleidungsstücke 10 können auf andere Weise der Vorrichtung zugeführt werden. Außerdem eignet sich die Erfindung auch für Vorrichtungen, die über keine Stapeleinrichtung 12 verfügen.The 1 shows schematically a device for folding and subsequent stacking of items of clothing 10 or other textile objects. The device has a folding device 11 and a stacking device 12 arranged downstream of this. The items of clothing 10 are fed to the device shown here hanging on transport hangers, which are not shown in the figures. However, the invention is not limited to this. The garments 10 can be fed to the device in other ways. In addition, the invention is also suitable for devices that do not have a stacking device 12 .

Die Zufuhr des jeweils an einem Transportbügel hängenden Bekleidungsstücks 10 zur Falteinrichtung 11 der Vorrichtung erfolgt mit einem Bügelzuführförderer 13. Dieser verfügt über eine vorzugsweise geradlinige Förderstrecke, an der Bügelhaken der Transportbügel hängen, und zwar vorzugsweise an einem Schlitten, der von einem Förderstrang längs der Förderstrecke des Bügelzuführförderers 13 weiterbewegt wird. Der Förderstrang des Bügelzuführförderers 13 wird von einem Servomotor 14 angetrieben.The garment 10 hanging on a transport hanger is fed to the folding device 11 of the device with a hanger feed conveyor 13. This has a preferably rectilinear conveying path on which hanger hooks of the transport hangers hang, preferably on a carriage that is guided by a conveyor line along the conveying path of the hanger feed conveyor 13 is moved on. The conveyor line of the hanger feed conveyor 13 is driven by a servo motor 14 .

Gegen Ende des Bügelzuführförderers 13 gelangen die Bekleidungsstücke 10 auf einen Zuförderer 15. Sobald die Bekleidungsstücke 10 den Zuförderer 15 erreicht haben, wird der Transportbügel eingeklappt und von einem leicht in Förderrichtung ansteigenden Bügelauszugförderer 16 aus dem Bekleidungsstück 10 herausgezogen und abtransportiert. Dabei hängen die Transportbügel mit ihren Bügelhaken auch an einem Schlitten eines Bügelauszugförderers 16, der von einem umlaufenden Förderstrang entlang der Förderstrecke des Bügelauszugförderers 16 weitertransportiert wird. Der Antrieb des Förderstrangs des Bügelauszugförderers 16 erfolgt durch einen weiteren, dem Bügelauszugförderer 16 zugeordneten Servomotor 17.Towards the end of the hanger feed conveyor 13, the items of clothing 10 reach a feed conveyor 15. As soon as the items of clothing 10 have reached the feed conveyor 15, the transport hanger is folded in and pulled out of the item of clothing 10 and transported away by a hanger pull-out conveyor 16, which rises slightly in the conveying direction. In this case, the transport hangers with their hanger hooks also hang on a carriage of a hanger extension conveyor 16 which is transported further along the conveying path of the hanger extension conveyor 16 by a circulating conveyor line. The conveyor line of the pull-out conveyor 16 is driven by a further servomotor 17 assigned to the pull-out conveyor 16.

Vom Zuförderer 15 gelangt das jeweilige Bekleidungsstück 10 in den Bereich einer ersten Querfaltstation 18. Der Zuförderer 15 kann bereits Bestandteil der ersten Querfaltstation 18 sein, nämlich einen ersten Förderer derselben bilden. Bei Bekleidungsstücken 10 mit Ärmeln werden diese vor Erreichen der ersten Querfaltstation 18 oder am Anfang derselben vor der ersten Querfaltung des Bekleidungsstücks 10 umgelegt auf ein Rumpfteil des Bekleidungsstücks 10. Die erste Querfaltstation 18 ist in an sich bekannter Weise mit einem Reversier- und/oder Zwischenförderer 19 versehen, der durch Antrieb in unterschiedliche Richtungen das Bekleidungsstück 10 durch einen Querfaltspalt transportiert und dabei zwei jeweils eine Hälfte des Bekleidungsstücks 10 umfassende Lagen des Bekleidungsstücks 10 übereinanderlegt. Von einem Zwischenförderer 19 wird dann das mit einer ersten Querfaltung versehene Bekleidungsstück 10 zur Längsfaltstation 20 transportiert.From the feed conveyor 15, the respective item of clothing 10 reaches the area of a first transverse folding station 18. The feed conveyor 15 can already be a component of the first transverse folding station 18, namely form a first conveyor of the same. In the case of items of clothing 10 with sleeves, these are folded onto a torso part of the item of clothing 10 before they reach the first transverse folding station 18 or at the beginning of the same before the first transverse folding of the item of clothing 10. The first transverse folding station 18 is equipped with a reversing and/or intermediate conveyor in a manner known per se 19 provided by the drive in different directions, the garment 10 through a transverse folding gap transported and in the process two layers of the garment 10, each comprising one half of the garment 10, are superimposed. The item of clothing 10 provided with a first transverse fold is then transported to the longitudinal folding station 20 by an intermediate conveyor 19 .

Die Längsfaltstation 20 verfügt über ein im gezeigten Ausführungsbeispiel ortsfestes Mitteilteil 21 und zwei gegenüberliegenden Längsrändern 22 zugeordnete Längsfaltflügel 23. Die Längsfaltflügel 23 sind gleich ausgebildet, jedoch in einer spiegelverkehrten Orientierung den gegenüberliegenden Längsrändern 22 des Mitteilteils 21 zugeordnet. Das Mitteilteil 21 der Längsfaltstation 20 der gezeigten Vorrichtung ist als ein Gurtförderer ausgebildet mit mehreren nebeneinanderliegenden, schmalen umlaufenden Fördergurten oder nur einem breiten umlaufenden Fördergurt, wovon das Bekleidungsstück 10 in die Längsfaltstation 20 eintransportierbar und nach dem Längsfalten abtransportierbar ist. Die Förderrichtung des nur einen Fördergurts oder auch mehrere nebeneinanderliegende Fördergurte aufweisenden Mitteilteils 21 verläuft in Längsrichtung der Längsfaltstation 20 und der Längsränder 22 des Mittelteils 21. Die Längsrichtung der Längsfaltflügel 23 entspricht auch der Förderrichtung.The longitudinal folding station 20 has a central part 21, which is stationary in the exemplary embodiment shown, and two longitudinal folding wings 23 assigned to opposite longitudinal edges 22. The longitudinal folding wings 23 are of identical design, but are assigned to the opposite longitudinal edges 22 of the central part 21 in a mirror-inverted orientation. The central part 21 of the longitudinal folding station 20 of the device shown is designed as a belt conveyor with several narrow circulating conveyor belts next to one another or just one wide circulating conveyor belt, from which the item of clothing 10 can be transported into the longitudinal folding station 20 and removed after longitudinal folding. The conveying direction of the central part 21, which has only one conveyor belt or several adjacent conveyor belts, runs in the longitudinal direction of the longitudinal folding station 20 and the longitudinal edges 22 of the central part 21. The longitudinal direction of the longitudinal folding wings 23 also corresponds to the conveying direction.

Die Längsfaltstation weist zumindest eine in den Figuren nicht dargestellte Faltschablone auf.The longitudinal folding station has at least one folding template, not shown in the figures.

Hierbei handelt es sich um längliche Zungen, die durchgehend über die gesamte Längsrichtung der Längsfaltstation 20, insbesondere ihres Mitteilteils 21, verlaufen. Bei mehreren Faltschablonen sind diese in der Nähe der Längsränder 22 mit Abstand oberhalb des Obertrums des Gurtförderers des Mittelteils 21 angeordnet, wobei gegebenenfalls der Abstand der Faltschablonen zueinander bzw. untereinander verändert werden kann zur Anpassung an die gewünschte Faltbreite des Bekleidungsstücks 10 in der Längsfaltstation 20. Das jeweilige Bekleidungsstück 10 wird zwischen der mindestens einen Faltschablone und dem Obertrum des Gurtförderers des Mittelteils 21 hindurch in und durch die Längsfaltstation 20 transportiert. Dabei befindet sich die mindestens eine Faltschablone über dem jeweils längs zu faltenden Bekleidungsstück 10. Auf dem Gurtförderer des Mittelteils 21 zum Hindurchfördern der Bekleidungsstücke 10 durch die Längsfaltstation 20 liegt das längs zu faltenden Bekleidungsstück 10 auf.These are elongated tongues that run continuously over the entire longitudinal direction of the longitudinal folding station 20, in particular its central part 21. If there are several folding templates, these are arranged in the vicinity of the longitudinal edges 22 at a distance above the upper strand of the belt conveyor of the central part 21, it being possible for the distance between the folding templates to be changed in relation to one another or to one another in order to adapt to the desired folding width of the item of clothing 10 in the longitudinal folding station 20. The respective item of clothing 10 is transported between the at least one folding template and the upper run of the belt conveyor of the central part 21 and into and through the longitudinal folding station 20 . The at least one folding template is located above each item of clothing 10 to be folded lengthwise.

In der Längsfaltstation 20 werden gegenüberliegende Randbereiche des Bekleidungsstücks 10 nacheinander um etwa 180° umgelegt auf die sich auf dem Mitteilteil 21 der Längsfaltstation 20 befindende Rumpfmitte des Bekleidungsstücks 10.In the longitudinal folding station 20, opposite edge regions of the item of clothing 10 are folded one after the other by about 180° onto the center of the torso of the item of clothing 10 located on the central part 21 of the longitudinal folding station 20.

Nach dem Längsfalten in der Längsfaltstation 20 wird das einmal quer und einmal längs gefaltete Bekleidungsstück 10 bei der hier gezeigten Vorrichtung durch eine nachfolgende zweite Querfaltstation 24 transportiert und in dieser bedarfsweise (also optional) ein zweites Mal quer gefaltet. Auch diese zweite Querfaltstation 24 ist in an sich bekannter Weise ausgebildet.After longitudinal folding in the longitudinal folding station 20, the item of clothing 10 folded once transversely and once longitudinally is transported in the device shown here through a subsequent second transverse folding station 24 and folded transversely a second time if necessary (i.e. optionally). This second transverse folding station 24 is also designed in a manner known per se.

Die fertig gefalteten Bekleidungsstücke 10 werden von der zweiten Querfaltstation 24 zu einer Abstapelstation 25 transportiert. Diese verfügt über einen Ablagetisch, der als ein kurzer Gurtförderer 26 ausgebildet ist. Der kurze Gurtförderer 26 ist von einer Hubeinrichtung 27 auf- und abbewegbar, und zwar vorzugsweise taktweise. Dadurch bilden der kurze Gurtförderer 26 und die diesem zugeordnete Hubeinrichtung 27 der Abstapelstation 25 ein Hubband. Die Hubeinrichtung 27 verfügt über einen Linearantrieb 28 zum taktweisen Auf- und Abbewegen des Gurtförderers 26. Die Betätigung des Linearantriebs erfolgt durch einen Servomotor 29. Dadurch ist vom Linearantrieb 28 der kurze Gurtförderer 26 rasch und um einen exakt den Anforderungen entsprechenden Weg absenkbar. Dieses Absenken erfolgt derart, dass auf dem kurzen Gurtförderer 26 der Abstapelstation 25 gefaltete Bekleidungsstücke 10 nach und nach übereinander abgelegt werden können zur Bildung eines Stapels. Nachdem auf dem kurzen Gurtförderer 26 der Abstapelstation 25 die gewünschte Anzahl von gefalteten Bekleidungsstücken 10 abgelegt worden ist, also der Stapel mit mehreren Bekleidungsstücken 10 komplett ist, wird vom Linearantrieb 28 der kurze Gurtförderer 26 mit dem daraufliegenden Stapel mehrerer gefalteteter Bekleidungsstücke 10 zunächst herabgefahren und anschließend wieder hochgefahren zum den Anforderungen entsprechenden Zusammenpressen des Stapels. Dazu wird vor dem erneuten Hochfahren der Hubeinrichtung 27 ein Gegenhalter, beispielsweise eine Andruckplatte, über den Stapel gefahren und der Stapel von unten gegen diese Andruckplatte gepresst, und zwar mit einer vorbestimmten Kraft. Danach wird vom Linearantrieb 28 der kurze Gurtförderer 26 mit dem darauf befindlichen Stapel wieder etwas heruntergefahren und durch einen Antrieb des kurzen Gurtförderer 26 der Stapel auf ein in der Fig. 1 nicht gezeigtes Abförderband übergeben. Dazu ist der kurze Gurtförderer 26 und die Abstapelstation 25 mit einem eigenen Antrieb versehen. Dieser Antrieb kann auf verschiedene Weise realisiert werden. Beispielsweise kann es sich beim Antrieb auch um einen separaten, eigenen Servomotor des kurzen Gurtförderers 26 handeln.The finished folded items of clothing 10 are transported from the second transverse folding station 24 to a stacking station 25 . This has a storage table which is designed as a short belt conveyor 26 . The short belt conveyor 26 can be moved up and down by a lifting device 27, preferably in cycles. As a result, the short belt conveyor 26 and the lifting device 27 associated with it of the stacking station 25 form a lifting belt. The lifting device 27 has a linear drive 28 for cyclically moving the belt conveyor 26 up and down. The linear drive is actuated by a servomotor 29. As a result, the short belt conveyor 26 can be lowered quickly and by a distance corresponding exactly to the requirements by the linear drive 28. This lowering takes place in such a way that on the short belt conveyor 26 of the stacking station 25 folded items of clothing 10 can be gradually deposited one on top of the other to form a stack. After the desired number of folded items of clothing 10 has been deposited on the short belt conveyor 26 of the stacking station 25, i.e. the stack with several items of clothing 10 is complete, the short belt conveyor 26 with the stack of several folded items of clothing 10 lying on it is first lowered by the linear drive 28 and then powered up again to compress the stack as required. For this purpose, before the lifting device 27 is raised again, a counter-holder, for example a pressure plate, is moved over the stack and the stack is pressed from below against this pressure plate, specifically with a predetermined force. Thereafter, the linear drive 28 of the short belt conveyor 26 with the stack on it down again a little and by driving the short belt conveyor 26 of the stack on one in the 1 hand over not shown discharge conveyor. For this purpose, the short belt conveyor 26 and the stacking station 25 are provided with their own drive. This drive can be realized in different ways. For example, the drive can also be a separate, dedicated servo motor for the short belt conveyor 26 .

Jeder der gleich ausgebildeten und spiegelverkehrt den gegenüberliegenden Längsrändern 22 des Mittelteils 21 der Längsfaltstation 20 zugeordneten Längsfaltflügel 23 ist von einem Servoantrieb, vorzugsweise einem elektrisch betriebenen Servomotor 30, um eine mit parallelem Abstand neben dem jeweiligen Längsrand 22 des Mittelteils 21 verlaufende Drehachse 31 in entgegengesetzten Richtungen um etwa 180° umklappbar. Dabei verlaufen die Drehachsen 31 wie die Längsränder 22 des Mittelteils 21 in Längsrichtung der Längsfaltstation 20.Each of the longitudinal folding wings 23, which are of the same design and are mirror-inverted to the opposite longitudinal edges 22 of the central part 21 of the longitudinal folding station 20, is controlled by a servo drive, preferably an electrically operated servo motor 30 an axis of rotation 31 running at a parallel distance next to the respective longitudinal edge 22 of the central part 21 can be folded over by approximately 180° in opposite directions. The axes of rotation 31, like the longitudinal edges 22 of the central part 21, run in the longitudinal direction of the longitudinal folding station 20.

Die Fig. 2 zeigt beide Längsfaltflügel 23 in ihrer horizontalen Ausgangsstellung auf gegenüberliegenden Seiten des Mittelteils 21. Die in der Ausgangsstellung horizontalen Auflageflächen 32 für das Bekleidungsstück 10 auf den Längsfaltflügeln 23 verlaufen dabei etwa in der gleichen horizontalen Ebene der Längsfaltstation 20. Dabei verbreitern die Auflageflächen 32 des Längsfaltflügels 23 das Mittelteil 21 auf beiden Seiten. Auf der Auflagefläche 32 jedes Längsfaltflügels 23 liegt ein Randbereich des in der Längsfaltstation 20 von jedem Längsfaltflügel 23 längs zu faltenden Bekleidungsstücks 10 auf. Dieser Randbereich ist vorzugsweise etwas schmaler als ein Mittelbereich des Bekleidungsstücks 10, der auf dem Mittelteil 21 der Längsfaltstation 20 aufliegt. Demzufolge sind die Auflageflächen 32 der Längsfaltflügel 23 etwas schmaler als die Breite des Mittelteils 21.The 2 shows both longitudinal folding wings 23 in their horizontal starting position on opposite sides of the central part 21. The bearing surfaces 32 for the item of clothing 10 on the longitudinal folding wings 23, which are horizontal in the starting position, run approximately in the same horizontal plane of the longitudinal folding station 20. The bearing surfaces 32 of the longitudinal folding wing 23 widen the middle part 21 on both sides. An edge region of the garment 10 to be folded longitudinally by each longitudinal folding wing 23 in the longitudinal folding station 20 rests on the supporting surface 32 of each longitudinal folding wing 23 . This edge area is preferably somewhat narrower than a middle area of the item of clothing 10 which rests on the middle part 21 of the longitudinal folding station 20 . As a result, the bearing surfaces 32 of the longitudinal folding wings 23 are somewhat narrower than the width of the central part 21.

Zwischen jedem Längsfaltflügel 23 und dem Servomotor 30 zum Verschwenken jedes Längsfaltflügels 23 ist ein Koppelgetriebe 33 vorgesehen. Die Koppelgetriebe 33 beider Längsfaltflügel 23 sind abgesehen von ihrer spiegelverkehrten Anordnung gleich ausgebildet. Jedes Koppelgetriebe 33 verfügt im Wesentlichen über drei Koppelarme, und zwar über einen ersten Koppelarm 34, einen zweiten Koppelarm 35 und einen dritten Koppelarm 36. Der erste Koppelarm 34 und der zweite Koppelarm 35 sind im Wesentlichen gerade ausgebildet. Der erste Koppelarm 34 ist mit einem Ende unverdrehbar mit einer Abtriebswelle des Servomotors 30 zum Betätigen des Koppelgetriebes 33 verbunden. Ein gegenüberliegendes Ende des ersten Koppelarms 34 ist mit einem zu diesem weisenden Ende des zweiten Koppelarms 35 gelenkig, nämlich um eine horizontale Drehachse parallel zum Längsrand 22 des Mittelteils 21 verschwenkbar, verbunden. Ein gegenüberliegendes Ende des zweiten Koppelarms 35 ist an dem dritten Koppelarm 36 angelenkt, und zwar auch um eine Drehachse drehbar. Diese Drehachse verläuft parallel zur Drehachse zwischen dem ersten Koppelarm 34 und dem zweiten Koppelarm 35.A linkage 33 is provided between each longitudinal folding wing 23 and the servo motor 30 for pivoting each longitudinal folding wing 23 . The linkage 33 of both longitudinal folding wings 23 are of the same design apart from their mirror-inverted arrangement. Each coupling mechanism 33 essentially has three coupling arms, specifically a first coupling arm 34, a second coupling arm 35 and a third coupling arm 36. The first coupling arm 34 and the second coupling arm 35 are essentially straight. The first coupling arm 34 is non-rotatably connected at one end to an output shaft of the servomotor 30 for actuating the linkage 33 . An opposite end of the first coupling arm 34 is connected in an articulated manner to an end of the second coupling arm 35 pointing thereto, namely pivotably about a horizontal axis of rotation parallel to the longitudinal edge 22 of the central part 21 . An opposite end of the second coupling arm 35 is articulated to the third coupling arm 36, specifically also rotatably about an axis of rotation. This axis of rotation runs parallel to the axis of rotation between the first coupling arm 34 and the second coupling arm 35.

Der dritte Koppelarm 36 verfügt über einen bogenförmigen bzw. abgewinkelten Verlauf. Der Bogen bzw. die Abwinklung erstreckt sich über einen Bereich von 110° bis 160°, vorzugsweise 120° bis 150°. Im gezeigten Ausführungsbeispiel betragen die Abwinklung oder der Bogenbereich etwa 135°. Ein Ende des dritten Koppelarms 36 ist mit einer Schwenkachse 37 drehbar verbunden. Diese Schwenkachse 37 definiert gleichzeitig die Drehachse 31 des jeweiligen Längsfaltflügels 23. Die Schwenkachse 37 verläuft parallel neben jeweils einem Längsrand 22 des Mittelteils 21, und zwar mit geringem Abstand neben dem Längsrand 22 und etwas unter dem Obertrum des Gurtförderers des Mittelteils 21. Ein gegenüberliegendes Ende des dritten Koppelarms 36 ist um eine Drehachse 38 schwenkbar am jeweiligen Längsfaltflügel 23 angelenkt. Diese Drehachse 38 verläuft parallel zur Schwenkachse 37. Die Drehachse 38 ist außermittig dem Längsfaltflügel 23 zugeordnet, und zwar so, dass sie um etwa ein Viertel der Breite des Längsfaltflügels 23 von seinem äußeren Rand 39 entfernt ist.The third coupling arm 36 has a curved or angled course. The arc or the bend extends over a range of 110° to 160°, preferably 120° to 150°. In the exemplary embodiment shown, the angling or arc area is approximately 135°. One end of the third coupling arm 36 is provided with a Pivot axis 37 rotatably connected. This pivot axis 37 also defines the axis of rotation 31 of the respective longitudinal folding wing 23. The pivot axis 37 runs parallel next to a respective longitudinal edge 22 of the central part 21, specifically at a small distance next to the longitudinal edge 22 and somewhat below the upper run of the belt conveyor of the central part 21. An opposite end of the third coupling arm 36 is articulated on the respective longitudinal folding wing 23 so as to be pivotable about an axis of rotation 38 . This axis of rotation 38 runs parallel to the pivot axis 37. The axis of rotation 38 is assigned eccentrically to the longitudinal folding wing 23 in such a way that it is about a quarter of the width of the longitudinal folding wing 23 away from its outer edge 39.

Mit Abstand von der Drehachse 38 ist dem Koppelarm 36 eine weitere Schwenkachse 40 zugeordnet, an der gelenkig der zweite Koppelarm 35 angelenkt ist, und zwar mit seinem dem am ersten Koppelarm 34 angelenkten Ende gegenüberliegenden Ende. Die Drehachse 40 befindet sich dichter an der Drehachse 38 an einem Ende des Koppelarms 36 als an der Schwenkachse 37 des gegenüberliegenden Endes des Koppelarms 36. Infolge der abgewinkelten bzw. bogenförmigen Ausbildung des dritten Koppelarms 36 liegt die Drehachse 40 nicht auf einer Linie zwischen der Schwenkachse 37 und der Drehachse 38, sondern (bezogen auf die Darstellung der Fig. 2) unterhalb dieser Linie. Aufgrund dessen liegen die Schwenkachse 37 und die Drehachsen 38 und 40 des dritten Koppelarms 36 auf den Ecken eines Dreiecks. Hierbei handelt es sich um ein ungleichschenkliges Dreieck, wobei die Drehachse 40 etwas dichter an der Drehachse 38 liegt.At a distance from the axis of rotation 38, the coupling arm 36 is assigned a further pivot axis 40, on which the second coupling arm 35 is articulated, specifically with its end opposite the end articulated on the first coupling arm 34. The pivot axis 40 is closer to the pivot axis 38 at one end of the coupling arm 36 than to the pivot axis 37 of the opposite end of the coupling arm 36. Due to the angled or arcuate design of the third coupling arm 36, the pivot axis 40 is not on a line between the pivot axis 37 and the axis of rotation 38, but (based on the representation of the 2 ) below this line. Because of this, the pivot axis 37 and the axes of rotation 38 and 40 of the third coupling arm 36 lie on the corners of a triangle. This is a scalene triangle, with the axis of rotation 40 being somewhat closer to the axis of rotation 38 .

Die Fig. 3 zeigt eine Zwischenstellung eines um etwa 90° hochgeschwenkten Längsfaltflügels 23, und zwar des (bezogen auf die Darstellung der Fig. 3) linken Längsfaltflügels 23. Die Fig. 4 zeigt den linken Längsfaltflügel 23 in der Endfaltstellung, also in einer um etwa 180° gegenüber der in der Fig. 2 dargestellten Ausgangsstellung umgeschwenkten Stellung, in der der linke Längsfaltflügel 23 den linken Randbereich des Bekleidungsstücks 10 längsgefaltet hat, so dass dieser längsgefaltete linke Randbereich des Bekleidungsstücks 10 auf dem Mittelteil desselben liegt und die in Längsrichtung verlaufende Längsfaltlinie sich etwa über dem linken Längsrand 22 des Mittelteils 21 befindet. Diese Position der linken Längsfaltlinie bezogen zum linken Längsrand 22 des Mittelteils 21 wird durch die entsprechende Faltschablone vorherbestimmt. Durch Verstellung der Faltschablonen ist es denkbar, dass die Längsfaltlinie zwar parallel zum linken Längsrand 22 des Mittelteils 21 verläuft, aber vom Längsrand 22 in Richtung zur Mitte des Mittelteils 21 etwas nach innen versetzt ist.The 3 shows an intermediate position of a longitudinal folding wing 23 pivoted up by about 90°, namely of the (based on the representation of 3 ) left longitudinal folding wing 23. The 4 shows the left longitudinal folding wing 23 in the final folding position, ie in a position at an angle of about 180° to that in FIG 2 shown starting position, in which the left longitudinal folding wing 23 has folded the left edge area of the item of clothing 10 lengthwise, so that this longitudinally folded left edge area of the item of clothing 10 lies on the middle part of the same and the longitudinal fold line running in the longitudinal direction is approximately above the left longitudinal edge 22 of the middle part 21 located. This position of the left-hand longitudinal fold line in relation to the left-hand longitudinal edge 22 of the central part 21 is predetermined by the corresponding folding template. By adjusting the folding templates, it is conceivable that the longitudinal fold line runs parallel to the left longitudinal edge 22 of the central part 21, but is slightly offset inwards from the longitudinal edge 22 towards the center of the central part 21.

Die Fig. 5 und 6 zeigen die Ausgangsstellung und die Endfaltstellung des linken Längsfaltflügels 23 bei schematisch dargestelltem Koppelgetriebe 33.The Figures 5 and 6 show the initial position and the final folded position of the left longitudinal folding wing 23 with a schematically illustrated linkage 33.

Aus der schematischen Darstellung des Koppelgetriebes 33 wird ersichtlich, dass der erste und der zweite Koppelarm 34, 35 etwa gleich lang sind. Am dritten Koppelarm 36 ist der Abstand der Schwenkachse 37 zur Drehachse 38 etwa genauso groß wie die Länge der Koppelarme 34, 35. Dieser Abstand kann aber auch geringer sein, vorzugsweise um 10% bis 20%.. Der Abstand der dritten Achse, nämlich der Drehachse 40, des Koppelarms 36 von einer gedachten Verbindungslinie zwischen der Schwenkachse 37 und der Drehachse 38 ist hingegen etwas kleiner als der Abstand zwischen der Schwenkachse 37 und der Drehachse 38, beträgt nur etwa zwei Drittel des gesamten Abstands zwischen der Schwenkachse 37 und der Drehachse 38.The schematic representation of the coupling mechanism 33 shows that the first and second coupling arms 34, 35 are approximately the same length. On the third coupling arm 36, the distance between the pivot axis 37 and the axis of rotation 38 is about the same as the length of the coupling arms 34, 35. This distance can also be smaller, preferably by 10% to 20%. The distance between the third axis, namely the Axis of rotation 40 of the coupling arm 36 from an imaginary connecting line between the pivot axis 37 and the axis of rotation 38 is somewhat smaller than the distance between the axis of rotation 37 and the axis of rotation 38, amounts to only about two thirds of the total distance between the axis of rotation 37 and the axis of rotation 38 .

Aus der die Ausgangsstellung des Koppelgetriebes mit dem Längsfaltflügel 23 zeigenden Darstellung der Fig. 5 wird ersichtlich, dass zu Beginn des Schwenkvorgangs des Längsfaltflügels 23 der erste und der zweite Koppelarm 34 und 35 unter einem spitzen Winkel zueinander verlaufen (gemessen an den miteinander verbundenen und zueinander gerichteten Enden der Koppelarme 34 und 35). Dieser spitze Winkel beträgt im gezeigten Ausführungsbeispiel etwa 25°, kann aber hiervon um +/- 20° abweichen. Infolge dieses spitzen Winkels der Koppelarme 34 und 35 in der Ausgangsstellung des Längsfaltflügels 23 und des Koppelgetriebes 33 ist anfänglich eine Untersetzung des Schwenkwegs der Abtriebswelle des Servomotors 30 zum Verschwenkwinkel des jeweiligen Längsfaltflügels 23 gegeben. Diese Untersetzung beträgt im gezeigten Ausführungsbeispiel etwa 0,4 bis 0,6. Das heißt, bei einem Schwenkwinkel der Abtriebswelle des Servomotors 30 von zum Beispiel 10° wird der Längsfaltflügel 23 um seine Schwenkachse 37 nur um etwa 4° bis 6° verschwenkt. Dadurch ist es mit einem relativ kleinen Servomotor 30, insbesondere einem Servomotor mit relativ geringer Leistung bzw. einem relativen geringen Drehmoment, möglich, die Massenträgheit des Längsfaltflügels 23 und der Komponenten des Koppelgetriebes 33 bei einem Beschleunigen des Längsfaltflügels 23 aus seiner Ruhestellung zu überwinden. Analog verhält es sich beim Abbremsen bzw. Verzögern des Längsfaltflügels 23 vor Erreichen seiner in den Fig. 4 und 6 dargestellten Endfaltstellung. Jedoch ist hier eine kleinere oder keine Untersetzung vorgesehen. Gegebenenfalls kann das Abbremsen auch mit einer geringfügigen Übersetzung, die von der Übersetzung in Bewegung des Längsfaltflügels 23 zwischen der Ausgangs- und der Endfaltstellung deutlich abweicht, erfolgen. Die Übersetzung beim Abbremsen bzw. Verzögern des Längsfaltflügels 23 beträgt nur etwa 1,4 bis 1,7. Das heißt, bei 10° Winkelbewegung der Abtriebswelle des Servomotors 30 wird der Längsfaltflügel 23 zwischen 14° bis 17° verschwenkt.From the initial position of the linkage with the longitudinal folding wing 23 showing the representation figure 5 It can be seen that at the beginning of the pivoting process of the longitudinal folding wing 23, the first and second coupling arms 34 and 35 extend at an acute angle to one another (measured at the ends of the coupling arms 34 and 35 which are connected to one another and point towards one another). In the exemplary embodiment shown, this acute angle is approximately 25°, but can deviate from this by +/-20°. As a result of this acute angle of the coupling arms 34 and 35 in the initial position of the longitudinal folding wing 23 and the coupling mechanism 33, a reduction of the pivoting path of the output shaft of the servomotor 30 to the pivoting angle of the respective longitudinal folding wing 23 is initially given. This reduction is about 0.4 to 0.6 in the embodiment shown. This means that with a swivel angle of the output shaft of the servomotor 30 of, for example, 10°, the longitudinal folding leaf 23 is swiveled about its swivel axis 37 by only about 4° to 6°. This makes it possible with a relatively small servomotor 30, in particular a servomotor with relatively low power or a relatively low torque, to overcome the mass inertia of the longitudinal folding wing 23 and the components of the linkage 33 when the longitudinal folding wing 23 is accelerated out of its rest position. The situation is analogous when braking or decelerating the longitudinal folding wing 23 before it reaches its in the 4 and 6 shown final folding position. However, a smaller or no reduction is provided here. If necessary, the deceleration can also take place with a slight translation, which differs significantly from the translation in the movement of the longitudinal folding wing 23 between the initial and the final folding position. The translation when braking or decelerating the longitudinal folding wing 23 is only about 1.4 to 1.7. The This means that with a 10° angular movement of the output shaft of the servomotor 30, the longitudinal folding wing 23 is pivoted between 14° and 17°.

Zwischen der Ausgangsstellung und Endfaltstellung ermöglicht das Koppelgetriebe eine höhere Übersetzung, bei der der Längsfaltflügel 23 bezogen auf den Drehwinkel der Abtriebswelle des Servomotors 30 um einen vielfach größeren Schwenkbereich verschwenkt werden kann. Das führt zu einer in allen Schwenkphasen des jeweiligen Längsfaltflügels 23 nahezu vollständigen Ausnutzung der zur Verfügung stehenden Leistung und/oder des zur Verfügung stehenden Drehmoments des Servomotors 30. Aufgrund dessen ermöglicht es das Koppelgetriebe 33, einen hinsichtlich der Leistung bzw. des maximalen Drehmoments und auch der Baugröße relativ klein dimensionierten Servomotor 30 einzusetzen.Between the starting position and the final folding position, the linkage enables a higher gear ratio, in which the longitudinal folding wing 23 can be pivoted by a much larger pivoting range in relation to the rotation angle of the output shaft of the servo motor 30 . This leads to almost complete utilization of the available power and/or the available torque of the servomotor 30 in all pivoting phases of the respective longitudinal folding wing 23 use the size relatively small dimensioned servo motor 30.

Darüber hinaus ist das Koppelgetriebe 33 so ausgebildet, dass zumindest in der Ausgangsstellung des jeweiligen Längsfaltflügels 23 die Abtriebsachse des Servomotors 30 und die Drehachse 40, womit das freie Ende des zweiten Koppelarms 35 mit dem dritten Koppelarm 36 verbunden ist, dicht beieinanderliegen. Vorzugsweise ist vorgesehen, dass in der Ausgangsstellung die Drehachse 40 zwischen dem zweiten Koppelarm 35 und dem dritten Koppelarm 36 sowie die Abtriebsachse des Servomotors 30 am dichtesten zusammenliegen. Demzufolge wird der Abstand zwischen der Drehachse 40 und der Abtriebsachse des Servomotors 30 ausgehend von der Ausgangsstellung des Längsfaltflügels 23 zunehmend größer. Der Abstand kann aber während des Verschwenkens des Längsfaltflügels 23 vor Erreichen der Endfaltstation der Längsfaltklappe 23 wieder kleiner werden. Die Abtriebswelle des Servomotors 30 und die Schwenkachse 37 des dritten Koppelarms 36 des Koppelgetriebes 33 verändern ihren Abstand nicht, weil es sich dabei um fixe Endpunkte des Koppeltriebes 33 handelt. Der Abstand der Schwenkachse 37 zur Längsmittelachse der Abtriebswelle des Servomotors 30 ist aber relativ klein gewählt, indem er ein Drittel bis zwei Drittel, vorzugsweise die halbe Länge, des ersten Koppelarms 34 und/oder zweiten Koppelarms 35 entspricht.In addition, the coupling mechanism 33 is designed in such a way that, at least in the starting position of the respective longitudinal folding leaf 23, the output axis of the servomotor 30 and the axis of rotation 40, with which the free end of the second coupling arm 35 is connected to the third coupling arm 36, are close together. Provision is preferably made for the axis of rotation 40 between the second coupling arm 35 and the third coupling arm 36 and the output axis of the servomotor 30 to be closest together in the starting position. Accordingly, the distance between the axis of rotation 40 and the output axis of the servo motor 30, starting from the starting position of the longitudinal folding wing 23, becomes increasingly greater. However, the distance can become smaller again during the pivoting of the longitudinal folding wing 23 before the final folding station of the longitudinal folding flap 23 is reached. The output shaft of the servomotor 30 and the pivot axis 37 of the third coupling arm 36 of the coupling mechanism 33 do not change their distance because they are fixed end points of the coupling mechanism 33 . However, the distance between the pivot axis 37 and the longitudinal center axis of the output shaft of the servo motor 30 is selected to be relatively small, in that it corresponds to one third to two thirds, preferably half the length of the first coupling arm 34 and/or second coupling arm 35.

Der Servomotor 30 ist ebenso wie die übrigen Servomotoren elektromotorisch angetrieben. Es handelt sich hierbei um Elektromotoren mit speicherprogrammierbaren Steuerungen (SPS Steuerungen). Solche Servomotoren, insbesondere der Servomotor 30, lassen sich hinsichtlich ihrer Drehzahl und damit hinsichtlich des maximal abgebbaren Drehmoments exakt bedarfsgerecht steuern. Insbesondere können die Servomotoren beliebig programmiert werden, insbesondere mit beliebigen Drehzahlverläufen. Auch ist es möglich, zumindest Servomotoren 30 für die Betätigung der Koppelgetriebe 33 der Längsfaltflügel 23 lastsensitiv zu steuern. Dann ist es möglich, den Faltweg und Faltwinkel der Längsfaltflügel 23 an unterschiedliche Materialien, insbesondere unterschiedlich dicke Materialien, der Bekleidungsstücke 10 anzupassen. Das kann derart erfolgen, dass die Längsfaltflügel 23 in ihrer Endfaltstellung unabhängig von der Materialdicke der Bekleidungsstücke 10 stets eine gleiche Druckkraft auf den längsgefalteten äußeren Randbereich des betreffenden Bekleidungsstücks 10 ausüben. Außerdem ist es möglich, diese Druckkraft nach Art des Gewebes der Bekleidungsstücke 10 zu variieren. Dadurch gewährleisten die Servoantriebe, insbesondere die den Längsfaltflügeln 23 zugeordneten Servomotoren 30, ein bedarfsgerechtes Falten der Bekleidungsstücke 10, und zwar gegebenenfalls auch in Abhängigkeit von ihrer Gewebeart, Gewebedicke und/oder der Verwendungszweck bzw. die Art des Bekleidungsstücks 10. Bezugszeichenliste: 10 Bekleidungsstück 36 Koppelarm 11 Falteinrichtung 37 Schwenkachse 12 Stapeleinrichtung 38 Drehachse 13 Bügelzuführförderer 39 äußerer Rand 14 Servomotor 40 Drehachse 15 Zuförderer 16 Bügelauszugförderer 17 Servomotor 18 erste Querfaltstation 19 Zwischenförderer 20 Längsfaltstation 21 Mitteilteil 22 Längsrand 23 Längsfaltflügel 24 zweite Querfaltstation 25 Abstapelstation 26 kurzer Gurtförderer 27 Hubeinrichtung 28 Linearantrieb 29 Servomotor 30 Servomotor 31 Drehachse 32 Auflagefläche 33 Koppelgetriebe 34 Koppelarm 35 Koppelarm Like the other servomotors, the servomotor 30 is driven by an electric motor. These are electric motors with programmable logic controllers (PLC controllers). Such servomotors, in particular the servomotor 30, can be controlled exactly as required in terms of their speed and thus in terms of the maximum torque that can be output. In particular, the servomotors can be programmed as desired, in particular with any speed curves. It is also possible, at least servo motors 30 for the actuation of the linkage 33 of Longitudinal folding wings 23 to control load sensitive. It is then possible to adapt the folding path and folding angle of the longitudinal folding flaps 23 to different materials, in particular materials of different thicknesses, of the items of clothing 10 . This can be done in such a way that the longitudinal folding wings 23 always exert the same compressive force on the longitudinally folded outer edge region of the clothing item 10 in question, regardless of the material thickness of the clothing item 10 in their final folding position. It is also possible to vary this compressive force according to the type of fabric of the garments 10. As a result, the servo drives, in particular the servo motors 30 assigned to the longitudinal folding wings 23, ensure that the items of clothing 10 are folded as required, possibly also depending on their type of fabric, fabric thickness and/or the intended use or the type of item of clothing 10. <b>List of reference characters:</b> 10 garment 36 coupling arm 11 folding device 37 pivot axis 12 stacker 38 axis of rotation 13 hanger feed conveyor 39 outer edge 14 servo motor 40 axis of rotation 15 feeder 16 bracket extension conveyor 17 servo motor 18 first cross folding station 19 intermediate conveyor 20 longitudinal folding station 21 message part 22 long edge 23 longitudinal folding wings 24 second cross folding station 25 stacking station 26 short belt conveyor 27 lifting device 28 linear actuator 29 servo motor 30 servo motor 31 axis of rotation 32 bearing surface 33 linkage 34 coupling arm 35 coupling arm

Claims (15)

  1. Apparatus for folding textiles, preferably items of clothing (10), comprising at least one longitudinal-folding station (20) which has a stationary middle part (21) and two longitudinal-folding wings (23) which are assigned to opposite longitudinal edges (22) of said middle part, and also at least one folding template, wherein the longitudinal-folding wings (23) can be pivoted by a drive, characterized in that the drive of each longitudinal-folding wing (23) is in the form of a servo drive.
  2. Apparatus according to Claim 1, characterized in that the servo drive is connected to the or the respective longitudinal-folding wing (23) by means of a preferably multi-member coupling mechanism (33).
  3. Apparatus according to Claim 2, characterized in that the coupling mechanism (33) has at least two coupling arms (34, 35) which are connected to one another in an articulated manner at adjacent ends.
  4. Apparatus according to Claim 2 or 3, characterized in that a rotationally drivable output shaft of the servo drive is connected in a non-rotatable manner to a free end of a first coupling arm (34).
  5. Apparatus according to one of Claims 2 to 4, characterized in that the coupling mechanism (33) is configured in such a way that, during the initial pivoting and/or at the end of the pivoting, the pivot angle of the respective longitudinal-folding wing (23) changes to a lesser extent than the angle of rotation of the output shaft of the servo drive.
  6. Apparatus according to one of the preceding claims, characterized in that the coupling mechanism (33) has at least one second coupling arm (35) which is connected in an articulated manner to the first coupling arm (34) and which, during the initial pivoting of the respective longitudinal-folding wing (23) from its starting position, encloses an acute angle with respect to the first coupling arm (34).
  7. Apparatus according to Claim 6, characterized in that, during the initial pivoting of the respective longitudinal-folding wing (23) from its starting position, the second coupling arm (35) encloses an acute angle of between 15° and 45° with respect to the first coupling arm (34).
  8. Apparatus according to one of the preceding claims, characterized in that a third coupling arm (36) is in the form of a multi-arm coupling arm (36) with three coupling locations, the articulated attachment location of which is connected, between opposite ends of the coupling arm (36), in an articulated manner to the free end of a second coupling arm (35) which is arranged upstream thereof in the direction of the servo drive.
  9. Apparatus according to Claim 8, characterized in that one end of the third coupling arm (36) of the coupling mechanism (33) is rotatably connected to the longitudinal-folding wing (23) assigned thereto, and an opposite end of this coupling arm (36) is articulated to a stationary rotary axle (38).
  10. Apparatus according to one of the preceding claims, characterized in that the output shaft of the servo drive runs parallel to the pivot axle (37) of the coupling arm (36) which is articulated to the respective longitudinal-folding wing (23).
  11. Apparatus according to one of the preceding claims, characterized in that the third coupling arm (36) which is assigned to the respective longitudinal-folding wing (23) is angled.
  12. Apparatus according to Claim 11, characterized in that the third coupling arm (36) which is assigned to the respective longitudinal-folding wing (23) is angled by 120° to 160°.
  13. Apparatus according to one or more of the preceding claims, characterized in that the servo drive is in the form of an electrically operated servo motor (30).
  14. Apparatus according to one of the preceding claims, characterized in that a feed conveyor (15) for items of clothing (10) suspended on hangers can be driven by a servo motor (14).
  15. Apparatus according to one of the preceding claims, characterized in that a removal conveyor of folded-up hangers can be driven by a servo motor (17).
EP17000664.7A 2016-05-13 2017-04-20 Device for folding of textiles, preferably items of clothing Active EP3243955B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016005751 2016-05-13
DE102016007100.1A DE102016007100A1 (en) 2016-05-13 2016-06-10 Device for folding textiles, preferably clothing

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EP3243955A1 EP3243955A1 (en) 2017-11-15
EP3243955B1 true EP3243955B1 (en) 2023-02-22

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DK (1) DK3243955T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110359262B (en) * 2019-07-18 2021-03-02 东北大学 A clothing turn-over folding device for clothing automation line
CN114890066A (en) * 2022-05-27 2022-08-12 日照大象房屋建设有限公司 Steering conveying device for building module operating platform

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411082A (en) * 1981-10-08 1983-10-25 Dubix Laundry ironing device with pivoted blade folder
IL208400A0 (en) * 2010-10-03 2010-12-30 Fold For Me Ltd Apparatus for folding textile articles
JP6192357B2 (en) * 2013-05-17 2017-09-06 株式会社プレックス Cloth piece folding device

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EP3243955A1 (en) 2017-11-15

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