DE2031372A1 - Device for forming a fold and a hem in a cloth or foil-like material - Google Patents

Description

Device for the formation of a pallet and a Hems in a fabric or foil-like

Material,. ^:

The present invention relates to the splitting of pliable sheet-like or board-like materials, such as cloths, plastic sheets or foils or the like, and a splitting device, which is intended to be used in an automatic machine for hemming or edging such Substances to be applied.

With the previously customary methods for splitting the aforementioned Flexible materials, air currents and knife edges are used, which are however not very suitable in one automatic hemming machine to be used "

G-emäss of the invention is to form a Palte i the .Längsrichtung ■ a path biegsamen.Materials a direction 'application _for the aica kennzeicimet Durek a hori zontal main plate or the like * sur receptive one: ^5? Batet dos bieg seeds IfeterinXsi dae with aoineiE zv, fa't & n Aliit ÜI rte cor Werlr, plr «t'br, lio £ Tt _q woü

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BATH ORIGINAL

Work plate under the part of the material _{web to be folded 5} if there is a material web on the work plate, further characterized by a tensioning device, with the help of which the rope can be tensioned against the action of the pressure devices or the like in order to stretch it and thereby the mentioned = to lift the section of material and to form a fold in it around the rope.

If this device is used in a seaming machine ', then a sur formation of a seam in the produced material fold serving machine head in a direction parallel to the said transverse edge of the bottom plate or the like "slidably ₉ that it is effective longitudinally of the formed by the rope fold such ,,

Does the material to be processed consist of a fabric or * cloth.? Thus the machine head is formed by a mower. In the case of processing a material sheet made of plastic the machine head from a welding device »

Further details and advantages of the invention can be found in the following description, as shown in the drawing Embodiment of the new FaIteinrichtung in connection with a hemming machine *

Fig _a 1 illustrates the operation of a? The same is true and shown in a side view of the folding device according to the invention.

Fig * 2 does Ssitenansieirs iron rope ®in © 3? with dar! alt = sinrioiitung equipped hemming machine§

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BATH ORIQIMAL

Fig * 6 is a section along the line VI-VI of Pig. 2 and shows the individual parts after the swiveling fork counterclockwise by 90 from its in Fig. 2 illustrated position has been moved out.

The folding device illustrated schematically in FIG. 1 is intended to interact with a machine Io which further processes the folded material, for example providing it with a hem or some other border. The Faiteinrichtung has a flexible thread or a rope 12, which expediently consists of twisted together metal threads. The aden or the cable 12 is attached on the one hand to a fixed point or pin 14, and at its other end to the circumference of a rotatable disk 16. From the attachment point 14, the thread or the rope 12 is initially around the with a groove or the like. provided circumference of a pulley 18, which is rotatably mounted on a frame 17 carrying the machine Io. Da.s cable 12 will thus be directed horizontally _s when it is between the pulley 18 and the fastening point 14 taut. The cable section 12a located between the fastening point 14 and the cable pulley 18 is arranged in such a way that it is above a groove or the like cut perpendicularly into a horizontal work plate 2o. lies. Aids are provided at both ends of the cable section 12a in order to be able to lower this cable section into the groove to such an extent that it comes to lie below the surface of the work plate 2o. These aids for the optional transfer of the cable section 12a into the above-mentioned positions consist of a fork lever 22 pivotably arranged next to the fastening point 14 and a fork lever 24 "which is pivotably mounted next to the cable pulley 18 on the frame 17". For example, springs (not shown in the drawing) act on the levers 22, 24, which have the effect that the cable is usually located below the surface of the work plate 2o. In this rope position, a length of the fabric or film-like material that is to be folded over is

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BAD ORfGINAL

rials placed on the work plate 2o so that the section to be folded lies over the groove. If the rope 12 is pulled taut, so it pivots the levers 22 and 24 counterclockwise or clockwise and gets into its upper one, in the Drawing with dashed lines illustrated position in which it is in the horizontal direction from the attachment point 14 extends to the outer circumference of the guide disk 18. In its upward movement In this position, the rope 12 lifts the material in such a way that it forms two layers which are combined to form a seam can. The folding produced in this way is only promoted by the fact that immediately above the material and above the On the edge of the groove a horizontal bridge member is provided around which the material slides when it is lifted by the rope. As a result, the material extends from the work plate from substantially vertically upwards in the form of the fold formed by the rope.

Behind the pulley 18, the rope is initially closed horizontally a stationary disk 26, then · vertically downwards to a stationary disk 28 and finally horizontally to the Washer 16 out. A second rope 3o is on the one hand on the frame 17 and on the other hand attached to the circumference of a disk 32, which is rigidly connected to the disk 16, but only in diameter half the size of this one. Bas rope 3o still runs between its ends over stationary guide disks 34 and The pulley 16 is provided with a toothed wheel 38 which meshes with a toothed rack 39. This rack can with the help of a hydraulic drive device consisting of cylinder and piston are moved back and forth.

If the pulleys 16 and 32 are rotated by means of the rack 39, so the frame 17 is adjusted on a snow to the left (Fig. 1). The tension in ropes 12 and 3Q maintained due to the diameter ratio of the disks. The frame 17 and thus also the machine Io will be lifted from a fixed stop 44 to the left. The pulley 18 is arranged and designed that they are in the

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BATH ORIGINAL

formed folds of material can penetrate, which gets into the machine Io and in it depending on. Type of material to be processed is sewn or welded together. The machine is pulled over the material until the entire length of the pallet has been crossed and hemmed. The ^A1 at-erial falls back onto the work surface after you have hemmed it. When the seaming process has ended, the machine is withdrawn into its starting position, 4n: in which it rests against the stop 44, by reversing the direction of rotation of the disks 16 and 32. The device is then ready to carry out the next seaming process.

In Figures 2-6, a practical embodiment is one Seaming machine according to the invention shown, which in der.an g Hand of the pig. 1 works «To facilitate understanding of the operation of the machine according to the Pig. 2 to 6 in these figures are the parts that correspond to those of the Pig. 1 correspond with the same Provided with reference numerals.

In the pig. 2 and 3, a sewing machine accordingly bears the reference symbol lo. This machine is mounted on a frame 17 so that that your sewing needle 5o can be moved back and forth in the horizontal direction. The frame 17 is by means of wheels 54 ». from those in Pig. 2 only one is shown, on a horizontal one Rail 52 can be moved back and forth. The frame 17 has a downwardly directed arm 56 which carries one or more (not shown) Carries wheels, which can roll on another (also not shown) rail · In this way the machine Io is supported.

A pulley 18 is located on a journal 55 of the frame 17 rotatably mounted * which has a · groove or groove on the circumference to accommodate a rope-Φ2 »Independent of this, the pin carries 55 a rod-like arm or the like. 58, with which a flat plate is connected «The plate is roughly rectangular, lies in the The same level as the disc 18. and. is on your disc 18 facing hand - the .Sclweifeenkreisform © irtspreeilend shaped ·

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BATH ORIGINAL

As will be explained later, the plate 60 has the purpose of the disk 18 to penetrate into the pallet formed in the material 61, to guide this disc into the palte.

Against the direction of the plate 60 it extends from the arm or the like. 58 from a rod 62, which is in a thin loop-like ring 64 ends through which the rope 12 is passed. Instead of this eyelet ring 64, a guide disk (not shown) could also be used step. In addition, an elongated strut 66 is attached to the arm or the like, which extends upwards over the circumference of the Disk 18 protrudes, is bent back beyond this point and ends in a fork 68 (Pig “6). As Pig * 2 shows, recorded this fork 68 the rope 12 * the arm or the like 58 and the strut are

anti-clockwise (Pig. 2) can be swiveled 90 ° _Q Pig «, 2 shows the starting position in which the rope 12 is held below the level of the work plate 2o. 6 position illustrated pivotable in which the disc is 60 in front of the pulley 18 ,, The l'ei-Ie are pivoted away from the machine Io _o The strut 66 is then released from the cable 12, which is now in the horizontal direction from the located circumference the disc 18 can align »

In Pig. 2 the frame 17 and the machine Io are illustrated in their arrangement on one side of the device and on one end of the work plate 2o. On the other side © ₉ next to the other end of the work plate 2o, the end of the rope 12 is at the point 14 attached (Pig. 4) "the S _e il about a pin? o entrained s at the one end of an angle lever 72 is fixed." the other end of this angular lever rotatably gelagert® to a stationary part of the arrangement of the levers 72 is therefore pivotable in the plane of the pulley 18 and indeed see aiii, sifei end positions corresponding to the "two positions of the arm or the like 58, In the one working position (l ± g" 4) the rope 12 is below the level of the .Werkplatte 2 © and in the other position, the rope can extend freely in the horizontal direction between the fastening position 14 and the outer disk 18

position, but usually by means of a Cable 76 held in the first-mentioned position.

A bridge member 78 (Pig. 2 and 4-6) is provided, which ensures that when the rope is lifted to form a Palte the material straight up from the work plate upwards Ms to the rope (Pig. 5 and 6). When viewed horizontally, a pair of strips bo extends over the device, between which the rope 12 comes to rest when it assumes the raised position. The ^rx aterial is passed through the strips so that it folds the rope 12 | surrounds nicely. A guide plate 81, offset transversely to the disc 18, guides the material in its path through the machine Io »

The so far described ropes of the device form in the Material a simple, single palte that is supposed to form a seam in the machine. But if only such a simple palte is sewn together, the raw edge of the material remains uncovered, which can cause it to eat when you use it. It is therefore advisable to fold under the outer edge of the first palette so that a double fold is formed and ■ so that the raw fold wall is covered and a smooth hem is created Splitting device 82 is provided, which is arranged directly behind the pulley 18 in the direction of movement of the machine along the folded material 61.

The splitting device 82 consists of a pair of strip-like guide rails or the like 84, 86 (FIGS. 2 and 3). The guide rail 84 is straight and stretched, while the rail 86 of a line is bent 88 along, so that it has a portion 86a, one side of the rail is located on the 84, ■ v-Xia a portion 86b on the other side of the rail 84.BrannaeiL hanging free hand 9ο (Pig · 5 and 6) the main

109813/1059

The fold of the material 61 enters the gap between the rail 84 and the section 86a of the rail 86 when the folding device 82 - as seen in FIG. 2 - is moved to the right. The rail section 86b is designed in such a way that the downwardly hanging edge part 9o of the material is forced to fold upwards and inwards when it reaches the bending point 88, namely around the lower edge of the rail 84 (see Fig. 5). In this way, ^{a double fold arises in the ia} aterial. During its passage through the additional folding device 82, the main fold of the material is between the strips 8o by means of a pair of opposing pressure rollers 92 and by means of a clamping roller 94 and a guide plate 96 (FIG. 2) trapped. The sewing needle 5o is located directly behind the additional folding device 82. In this way, the double fold is sewn so that the finished hem is created.

The device described above with reference to FIGS. 2 to 6 is equipped with a similar cable drive device. equips as shown in Fig. 1 _o

The setup works as followsϊ

A layer or layer of the material to be hemmed is placed under the bridge member 78 on the work plate 2ο that the edge to be trimmed comes to rest over the rope located in the channel. The arm or the like. 58 assumes its starting position, so that the rope 12 is below the level of the work plate 2o lies. lun is the hydraulic device "4ö-in operation set, which has the consequence that the rope 12 · is tightened in the direction of the arrow A drawn in FIG. 2 »Bas first result this operation consists in that of the arm. or the like. 58 as a result the action of the rope on the eyelet ring Sf. opposite clockwise, so that the fork 66 gradually allows the rope to move upwards At the same time, the cable 76 is released so that the springs 74 pivot the lever 72 clockwise, and auoh the other end of the rope move upwards. The rope 12 has its

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Upward movement "ends as soon as it is in the horizontal direction between the pulley 18 and its attachment point 14 extends. As it moves upwards, the rope picks up the material 61 with, so that finally the end section 9o of the From the rope (Fig. 6). Will continue on the rope pulled in the direction of arrow A, the frame is pulled to the right - Fig. 2 -, which has the consequence that the Plate 6o and then the disk 18 penetrate into the fold. The plate 6o serves here to hold the two side parts of the fold so that the disc 18 can penetrate the fold. The free side 9o of the fold, the - ■ seen in Fig «, 2 - is behind the disk 18, arrives then, as already described, in the additional folding device and is folded under it, so that the double fold has arisen before it gets into the head of the sewing machine, where it is sewn together by means of the needle 5o. Once the When the sewing process is finished, the material is released from the sewing machine so that it falls back onto the work plate. Is the If the sewing machine has gone over the entire material, the sewing process is interrupted and the hydraulic drive device switched so that the frame 17 and the machine Io are returned to their starting positions by means of the rope 30 will. When the initial positions are reached, the tension in the rope 12 is released, so that the arm or the like. 58 under the influence of its own weight in the starting position. returns. The cable 76 is tightened and the rope 12 turns back to its initial position below the level of the work plate 2o.

Two sets of the devices described above are expediently arranged opposite one another with opposite sewing machines. The · one of the two institutions working to the left, the other naoh right so that face each other about lying sewing machines to ignore move in the same direction on the bottom plate "between the two device sets a cutting device provided · Situated then projects a layer of material on the bottom plate and the GE-

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- Io -

desired length of the finished material beyond one edge of the plate, the material can be divided into the longitudinal areas of two layers by means of the cutting device. When the two sets of equipment are then put into operation, the two machines can be used to produce a seam in each of the two longitudinal areas at the same time. The to be edged material is wound usually on the hands of the main plate on a plate or stacked manner of folds in such a way that the establishment operator _s of opposing the material supply, can be easily pulled over the bottom plate of the "

Instead of the sewing needle 50, the machine Io can also be provided with a welding head if a plastic is to be provided with a hem ",

If the tension in the rope 30 is to be maintained ^ when the disc 16 is rotated at the beginning in order to transfer the rope section 12a from its lower position to the upper position, a tensioning roller © under the action of a pedal is provided which is operated by a (not ) arm shown worn _t of the on the same axis as the disk 36 sits ₉ "This Spaniischei'be ensures that the machine Io * the fixed stop 44 remains in contact mi _s to the building section 12a completely into its upper operating position raised The machine is then released so that it can move to the left (Hg. 1) _g whereby the rope Jo is tensioned by the tensioning screw ©

Claims;

0981371OSS

Claims (1)

P a t en tan s ρ r ü ehe 1. A device for forming a crease in the longitudinal direction of a web of "pliable material, characterized by a horizontal work plate or the like. (.2o) to accommodate a web of the flexible material (61), which is to be folded with its Section lies over a transverse edge of the .Werkplatte, whereby above and beyond the mentioned workplate edge Cable (12) arranged horizontally and a pair of pressure devices or the like. (22, 24.) to deform the rope (12) is provided below, so that at least a portion of the rope below the level of the work plate under the part the material web to be folded (61) lies, provided there is a Material bann (61) is located on the work plate, further characterized by a clamping device (16), with the help of which the rope against the action of the pressure devices or the like. (22, 24) can be stretched in order to stretch it and thereby lift the mentioned material section and in it around the Rope (12) around to form a palte. 2. Seaming machine with Palteinrichtung according to claim 1, characterized characterized in that one is generated to form a seam in the Machine head (Io) serving as a fold of material in a direction parallel to the aforementioned transverse edge of the work plate or the like. (2o) is displaceable in such a way that it is along the through the rope (12) shaped Palte takes effect. 3. Hemming machine according to claim 2, characterized in that the machine head (lo) is a sewing machine that is in the Palle, that the material to be hemmed is a cloth or woven fabric sews the hem fold, 4 »Seaming machine according to claim 2, characterized in that the IlasoMnenkopf (lo) in the Palle of the processing of a material web (61) made of plastic from a welding gate 1 0 9 S 1 3/1 0 B 9 BATH ORIGINAL tion exists. 5. Seaming machine according to one of claims 2 to 4, characterized in that that one end of the rope (12) is held immovably (14), while the other end of the rope is closed a tension pulley (16) and that the rope is guided over a sheave (18) provided between the rope ends whose horizontal tangent on its upper circumference passes through the attachment point (14) of the rope, so that the tensioned rope (12) is directed horizontally from the fastening point (14) to the pulley (18). 6. Seaming machine according to claim 5, characterized in that the pulley (18) together with the machine head (lo) is adjustable so that when the tensioning disc (16) is turned and the rope (12) is tensioned, the rope section between the fastening point (14) and disk (18) are lifted horizontally from their initial position below the level of the work plate (2o) and is tensioned, whereupon the disc (18) and the machine head (lo) connected to it with further rotation of the The tensioning disk can be moved in the direction of the fastening point (14) of the rope (12). 7. Seaming machine according to claim 6, characterized by a guide plate (6o), with the help of which the palte formed and carried by the rope (12) over the side window (18) and into the Path of the machine head (lo) is steered so that the Palte is treated in a continuous operation if the Machine head (lo) on the edge of the work plate. (2o) moved along « 8. Seaming machine according to one of claims 5, 6 or 7 »characterized in that the means for changing the position or deforming the rope consist of a pair of cable arms (22, 24), one of which (22) next to the rope attachment point of the rope and the other is (2 * 4) close to the pulley (18), and the ^G portable arms (22, 24) from an initial or rest position in which they act deforming on the rope (1.21 10 9813/1059 Press it under the level of the work plate (2o), in a second operating position, in which the rope is located (12) extend horizontally between its fastening point (14) and the circumference of the disc (18) can", 9c hemming machine according to claim 8, characterized in that the fork arm (24) located near the pulley (.18) is pivotably mounted on the axis (55) of this disc, but independently of it, and can be automatically transferred from an initial position to the second operating position, as soon as the cable (12) is tensioned upon actuation of the clamping disc (16) a, wherein the other fork arm (22) is maintained usually by means of a pull cable (76) in its initial position, but can be moved by means of spring force into the second operating position · 10. Seaming machine according to one of claims 5 to 9, characterized that between the sheave (18) and the machine head (lo) a further, additional splitting device (82) is provided that the depending free edge (9 °) of around the rope (12) formed around folds when the fold is overrun by the machine head (lo), and this Place the edge under the free hand of this fold side (9o) so that a double fold is formed, which then f is fed to the machine head (lo). 11. Heming machine according to claim lo, characterized in that the additional folding device (82) consists of two guide rails or the like (.841 86), one of which is straight and the second is bent up and shaped so that that at the entry of the * freely hanging edge (96) the main fold formed by means of the rope (12) between the guide rails (84, .8.6) this edge around itself inwards around the lower edge of the first guide rail (84) laying around, so that in this way in the material (61) a double fold arises «, 1098 13/10 59 c Seaming machine according to one of Claims 5 to 11, characterized by a pair of stationary guide strips (8o) extending over the entire length of the work plate (2o) above the edge and directed to both sides and parallel to the rope (12) if this assumes its upper horizontal operating position between the fastening point (14) and the circumference of the pulley, so that the fold formed by the cable between the guide strips (80) and thus the fold itself are secured «, 13. FaIteinrichtung or seaming machine aaoh one of claims 1 to 12, characterized by a bridge member (78) _s aligned above the work plate (20) and parallel and next to its belt horizontally, which is at such a distance above the work plate (20) that a path of the material to be processed (61) can be inserted between it and the work plate, and which forms a guide edge around which the material is deflected ₉ when the rope (12) is moved upwards to form a fold in the material » 14. Device or «machine according to one & he claims 5 Ms 12, characterized by two sets of such devices or machines, whose work plate !! (2o) are arranged next to one another and parallel to one another. The two devices or machine sets work in opposite directions in such a way that the two machine pots (Io) are adjusted simultaneously and in the same direction and line the edges of two material beams (61) which by cutting up a single web of material placed over the two work plates (20) by means of a knife or the like, which is arranged between the two sets of equipment or machines ₀ 1098 13/105 9