DD142065A1 - DEVICE FOR FOLDING FLEXIBLE FOLDING - Google Patents

Description

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Title:

Device for folding flexible folded material

Field of application of the invention:

The invention relates to a device for folding flexible folded material, in particular of textile products and can be used, inter alia, in garment manufacturers of the tricot and clothing industry, but also in laundries for mechanically folding the finished products for the purpose of packaging or stacking. Particularly advantageously, the folding device is used where fashion-related different products must be folded in varying size and shape.

Characteristic of the known technical solution;

By DD-PS 104 573 folding devices for folding V / äsehestücken are known in which cooperate several longitudinal and Querfaltschieber with folding plates in a horizontal plane. Here, the Faltgut must be spread manually on the folding level and positioned. The hand time required for this is very large in the case of large folded pieces compared to the mechanical folding time. In addition, the arrangement requires an unfavorable posture of the operator. For fixing the folding edges folding plates are provided, which must be pulled out of the Faltgut after the respective folding. This requires, even with split folding plates, especially for the long Längsfaltkanten long ways and thus large space requirement. The extension and retraction of the folding plates also requires a large part of the cycle time.

To avoid the costly spreading of the product on a horizontal plane is also a folding device

become known (DD-PS 111 946), in which the folding plane is arranged vertically and the folded material is supplied in a suspended state. This device is not suitable for "wide Faltgutstücke, since the smoothing effect of gravity acts only in the longitudinal direction and the parts to be folded must be kept with elaborate mammalian nozzles on the folding elements.

There are also folding devices are known in which the folded material is beaten by means of folding flaps to inserted rods for fixing the folded edges (US-PS 2,616,594) or where specially trained holders are provided which can be pivoted in folding plane (DE-PS 1 225 593 ). In both cases, however, the holding means must also be pulled out of the folded material or swung again.

All known folding devices also have the common disadvantage of being suitable only for a narrowly defined article group and are bound to a fixed folding format.

Although the formats for plastic bags for packaging the folded goods are standardized, a rapid, continuous change of Faltkantenabstände is necessary in order to adjust the folding format to the packaged goods with different thick and bulging goods.

Object of the invention:

The invention aims to provide a device with the least space, with the help of which it is possible finished textile products of various dimensions, shapes, Faltformate and materials such

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e.g. Undershirts, briefs, sweaters, smocks, nightgowns or the like with minimal hand and non-productive time to Zv; corner of packaging or Stapeins mechanically fold in the shortest cycle time ·

presentation; the essence of the invention ;:

It is an object of the invention to arrange in a device folding elements and combine with a conveyor, that it is possible, even large-scale and difficult to handle Faltgut such. Underwear and nightgowns, the folding elements without having to spread it manually.

The folding edges should be exactly fixed during the folding process, without holding means are after folding within the Faltgutes.

The folding format should be infinitely adjustable within a certain range.

According to the invention the object is achieved in that two longitudinal folding slide with its guide elements in the initial position relative to the horizontal folding plane laterally tilted and about parallel arranged in the immediate vicinity of Längsfaltkanten axes are pivotable in a horizontal working position. Between the Längsfaltschiebern and Querfaltklappen along the Längsfaltkanten there are terminals that are jointly closable and after the longitudinal folds progressively successive transverse folds are gradually released over the Längsfaltkanten Faltschwerter are arranged, which are pressed with their front edges in the vertical direction below the folding plane in column , which are formed by the LängsfaItkanten and the open terminals. The folding elements is associated with a known Schleppklammerförderer with tow braces and rails.

The longitudinal folding slides are in their initial position, preferably at an angle of 70 °, folded «

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The Querfaltklappen are each formed as a longitudinally split, synchronously operating flap pair.

A pair of Querfaltklappen is arranged along guide rails in the longitudinal direction displaceable and arbitrarily lockable together with its bearing elements and the associated terminals.

The conveying plane of the Schleppklammerförderers runs in the longitudinal direction parallel to the Längsfaltkanten and between these and the default position located Faltschwertern.

At the one folding blade hinged down in the horizontal plane hold-down is hinged.

The folding elements and the elements of the Schleppklammerförderers are arranged symmetrically to both sides of an imaginary vertical longitudinal section plane to two frames, which in turn in a horizontal plane to this longitudinal section plane "to or away from her, stepless adjustable, are stored.

In the end of the rails are provided for opening the tow brackets in the longitudinal direction adjustable stops.

Ausführungsbeispie

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The invention will be explained in more detail using an exemplary embodiment.

The accompanying drawings show:

1 shows a schematic plan view of the folding machine without folding blades, the longitudinal folding slide in the horizontal working position

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Fig. 2 is a longitudinal section along line A - A del ¹ Fig.1

3 shows a cross section along line B-B of Figure 1, the longitudinal folding slide in the folded-down starting position

4 shows a cross section through the longitudinal folding elements during longitudinal folding.

By a center support 1, a front wall 2 and a rear wall 3, a stationary frame is formed. On the walls 2,3 guides 4 are provided, in which two frames 5,6 for receiving the folding elements symmetrically to the longitudinal sectional plane A-A, horizontally displaced towards each other and are mounted stepless adjustable according to the desired width of the finished folded good.

Horizontal struts of the frames 5, 6 form the longitudinal folding edges 7j8. Parallel and in the immediate vicinity of axes 9,10 are arranged on which guide elements 11,12 are pivotally mounted. In the guide elements 11,12 Längsfaltschieber 13,14 are slidably mounted. In the initial position, the longitudinal folding slide 13,14 with respect to the horizontal folding plane about 70 ° obliquely downwards. Yor longitudinal folds are the longitudinal folding slide 13,14 about the axes 9,10 hochschwenkbar so that they can move aufeinanderu in low height offset horizontal planes.

The movements of the longitudinal folding slide 13,14, and the pivoting movements of the guide elements 11,12 carried by means of several, not shown compressed air cylinder.

Other horizontal struts of the frame 5,6, below the folding plane are formed as guide rails 15,16.

On these are a large Querfaltklappe 17 and terminals 18,19,20,2 * 1 for adjusting the desired length of the finished folded good longitudinally slidable, a small Querfaltklappe 22 and cramps 23,24- fixed.

The Querfaltklappen 17,22 are longitudinally divided, wherein each part is associated with one of the two frames 5,6. The parts of each pair of flaps are coupled so that they work synchronously.

The pivotal movement of the flaps by 180 ° is composed of a pivotal movement of levers 25 about axes 26 below the folding plane and a tilting movement about arranged at the end of the lever 25 axes 27 · The driving of the pivoting movements by means not shown compressed air cylinder via gears and racks. The opening and closing of the terminals 18,19,20,21,22,23,24 also cause not shown air cylinder.

In a sufficient for the transport of the Faltgutes distance over the Längsfaltkanten 7,8 are parallel to these Faltschwerter 28,29 to the frame 5,6 so pivotally mounted that the front edges 28 ¹ ^ ^{1 of} the Faltschwerter 28,29 dive in the downward pivoting in column can, which are formed by the Längsfaltkanten 7,8 and the open terminals 18,19,20,21,23,24. On the one folding blade 28, a hold-down 30 is pivotally mounted parallel to this, which can be folded during the longitudinal folding in a horizontal own · The pivoting movements for the Faltschwerter 28,29 and the hold 30 are performed by compressed air cylinder, not shown. On the front wall 2, a short support table 31 rounded off at the front side is provided. In a plane between the longitudinal folding edges 7, 8 and the folding blades 28, 29 in the initial position, there are running rails 32, 33 for the trailing

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cling 34,35 a towed conveyor attached to the frame 5,6.

The tow brackets 34,3-5 are by means not shown, driven by an electric motor cable in the longitudinal direction movable. At the end of the rails 32,33 adjustable stops 36 are provided, against which the levers 37 of the drag brackets 34,35 drive shortly before completion of the Zutransportbewegung and thus cause an opening of the tow brackets 34,35 and a release of the Faltgutes. By moving the stops 36, the relative position of the end edge of the Faltgutes to the fixed axis of rotation 26 of the small Querfaltklappe 22 can be changed. The displacement of the stops 36 also serves to change the Faltmaßes in the length of the Faltgutes. For transporting the folded material, a string belt conveyor 38 driven by an electric motor (not shown) is provided, the conveying plane of which extends in the folding plane between the longitudinal folding edges 7 to 8 to the small transverse folding flap 22. The conveying plane can be raised by means of compressed air cylinders, not shown, in order to lift the finished folded goods from the opened clamps 23, 24 before they are transported away.

Instead of the Schnurriemenförderers 38 , an unillustrated gripper of a manipulator can connect, which can accommodate the folded Good, which is still stretched at the longitudinal edges in the terminals 23,24. ·

The operation of the device is the following:

In the initial position, the longitudinal folding slide 13,14 are folded laterally, the Faltschwerter 28,29 are in their supreme position over the Längsfaltkanten 7,8, the terminals 18,19,20,21,23,24 are open, the Querfaltklappen 17j22 lie in the Folding plane in the amount of Längsfaltkanten 7.8 and the tow brackets 34 _S 35 are located in

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opened state above the support table 31 · The operator brings the folded material, which is shown in phantom in the drawings, 25.B. an undergarment, at the shoulder seams in the tow braces 34,35 and closes this manually · The folded material then rests with the upper middle part on the support table 31, the side parts and the lower part hang down over the rounded edges table, without being spread have to. This is particularly advantageous for large folded material. After the triggering of the starting pulse, the tow clamps 34, 35 move synchronously on the rails 32, 33 parallel to the longitudinal fold edges 7, 8 in the longitudinal direction to the rear wall 3. The material to be folded is pulled onto the folding elements until the levers 37 of the drag clamps 34, 35 travel against the stops 36 and thereby open the tow clamps 34, 35. The folded material slides out of the tow brackets 34,35 and depending on the position of the stops 36 is the Faltgut, in a certain position to the folding elements to rest.

Pas Faltgut is now with the middle part on the Querfaltklappen 17,22, the side parts hanging over the front edges of the side folded down longitudinal folding slide 13,14 down. Due to the gravity of the hanging side parts, the folded material spreads itself.

The longitudinal folding pushers 13,14 are now pivoted up in a horizontal position, at the same time the Faltschwerter 28,29 lower to the Faltgut and press about 1 cm deep wrinkles in column, of the Längsfaltkanten 7.8 and the open terminals 18,19,20 , 21,23,24 are formed. While the Faltschwerter 28,29 'immediately move up again, close the clamps 18,19,20,21,23,24 and so fix the Faltgut along the Längsfaltkanten 7,8. Meanwhile, the tow brackets 34,35 are moved back to the starting position after depositing the Faltgutes. The operator has meanwhile taken the next foldable and can now attach it again to the tow brackets 34,35.

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While the right folding blade 29 swings up to the starting position, the left folding blade 28 only raises about 10 mm beyond the left longitudinal folding edge 7, and the hold-down pivots from its vertical position into a horizontal position. The longitudinal folding sliders 13, 14 now move simultaneously or successively in two planes slightly offset in height from one another and one above the other, whereby the side parts of the folded material slide over the rounded end edges of the longitudinal folding sliders 13, 14. The folded material is thereby folded longitudinally, FIG represents.

The only slightly raised folding blade 28 and the hold-down 30 prevent the last piece of the overhead right-hand side part is flung over the Längsfaltkante by the rapid movement of the longitudinal folding slide 14 with wide Faltgut. While the longitudinal folding slide 13,14 again drive out of the Faltgut and then swing to its original position, the folding blade 28 and the hold-30 is brought up to the starting position, and oils terminals 18,19 are opened. In the area of the large Querfaltklappe 17 so that the Faltgut is released for the now taking place first transverse folding, the line between the starting points of the still clamped distances forms the Querfaltkante at the longitudinal break edges. These clamping points prevent the Vorwerfen the Faltgutes during the rapid pivoting of the Querfaltklappe 17 by 180 °. During the pivoting back of the Querfaltklappe 17, the terminals 20,21 are opened, there is the second transverse folding by pivoting the small Querfaltklappe 22, which finishes the good, in the same way. Due to the fact that the clamps 18, 19, 20, 21, 23 and 24 are gradually released in the course of the successive transverse folds, the points of intersection of the transverse fold edges with the longitudinal fold edges 7, 8 remain fixed during the respective transverse folding.

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After opening the clamps 23,24, the product is picked up by the stringing belt conveyor 38 or by the gripper of a manipulator which pushes the material directly into the open bag provided by a terpacking machine or unstacks it onto a table Folded goods transported.

The device for folding finished products requires despite the large to be processed Faltgutstücke only a minimal amount of space, since they can be smaller than the widest Faltgutstück in cross section by the hanging side parts of Faltgutes and by the concentration of all folding elements in a folding station and the waiver of an upstream Auflegestation in longitudinal section only a little longer than the longest Faltgutstück must be.

By means of the device it is possible to lengthwise fold large pieces which are wider up to 5 times the set width of the finished folded good.

The stepless change of the longitudinal and Querfaltmaßes guarantees a perfect folding of different product groups.

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Claims (8)

-n- 210 115 claims: 1. Apparatus for folding flexible Faltgut, in particular of textile products, wherein pivotable folding flaps or sliding Faltschieber and means for fixing the folding edges, a control sequence corresponding to the longitudinal and transverse folding of Faltgutes cooperate, characterized in that two Längsf old slide (13 14) with its guide elements (11 $ 12) in the initial position relative to the horizontal folding plane obliquely laterally folded and about parallel in the immediate fie of Längsfaltkanten (7; 8) arranged axes (9; 10) are pivotable in a horizontal working position that between the Longitudinal folding sliders (13j14) and transverse folding flaps (17; 22) along the longitudinal folding edges (7; 8) are clamps (18; 19; 20; 21; 23; 24) which are jointly closable and gradually released after longitudinal folding in the course of successive transverse folds in that folding blades (28; 29) are arranged over the longitudinal folding edges (7j8), said folding blades (28; 29) being arranged with their front edges (2; 8; 29) can be pressed in a vertical direction below the folding plane in gaps formed by the longitudinal folding edges (7j8) and the opened clamps (18; 19; 20; 21; 23; 24) and in that the folding elements are a drag-rail conveyor known per se associated with Schleppklaramern (34, 35) and rails (32p3). 2 · Device according to item 1, characterized that the longitudinal folding slide (13 \ 14) are folded down in their initial position, preferably at an angle of 70 °. -12- 210 11 3. .Vorrichtung according to item 1 and 2, characterized in that the Querfaltklappen (17; 22) are each formed as a longitudinally split, synchronously operating flap pair. 4 · Device according to point 1 "to 3, characterized in that on the one folding blade (28) hinged in the horizontal plane hold-down (30) is hinged. Device according to points 1 to 4, characterized in that the conveying plane of the tow-bar conveyor runs in the longitudinal direction parallel to the longitudinal folding edges (7, 8) and between them and the folding tabs (28j29) located in the starting position. 6. The device according to item 1 to 5, characterized in that the Falteleinente and the elements of Schleppklamraerförderers are arranged symmetrically to both sides of an imaginary vertical longitudinal section plane to two frames (5; 6), in turn, in the horizontal plane to this ee longitudinal section plane or be moved away from it, infinitely adjustable, are stored. Device according to items 1 to 6, characterized in that "at least one pair of the transverse folding flaps (17; 22) together with its bearing elements and the associated clamps (18; 19 or 2O; 21) on guide rails (15; 16) in Longitudinally displaceable and arranged arbitrarily lockable. 8. Device according to items 1 to 7, characterized in that stops (36) which are adjustable in the longitudinal direction are provided in the end region of the slide rails (32; 33) for opening the slide clamps (34; 35). , HieiziL ^ .Seiten drawings