DE8411649U1 - FABRIC LAYING MACHINE - Google Patents

Description

HOEGER,

PATENTANWÄLTE UHLANDSTRASSE 14 cD 7000 STUTTGART 1

A 45 982 b -6-

April 10, 1984 Note : Krause and Reichert

b-204 GmbH & Co. KG

SpezialmaechinenfabriJ "Stuttgarter Strasse 7012 Fellbaeh

Cloth laying machine

The invention relates to a cloth laying machine with a movable along a support, having running wheels Laying carriage, which has a laying carriage frame and above this has an upper part of the laying carriage rotatable about a vertical axis, on which a slide is at least approximately horizontal is displaceable, with a storage device held by the carriage for a material web supply roll, a drive device for unwinding the supply roll, one rotatably mounted in the laying carriage frame with an axis parallel to the supply roll axis, accordingly the driving speed of the laying trolley Web feed roller as well as a laying unit held on the laying carriage frame for deflecting and cutting the web.

The users of cloth laying machines attach ever greater importance to the fact that the unwound from the supply roll Material line automatically introduced into the delivery mechanism, i.e. threaded, is. On the other hand is on fabric laying machines to make the requirement that they can be operated with the lowest possible dead times.

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A 45 982 b April 10, 1984 b-204

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The invention was based on the object of a cloth laying machine to develop that fulfills both requirements, and based on a known cloth laying machine of the type mentioned at the beginning (DE-OS 29 22 930), this object is achieved according to the invention in that the slide can be moved on the upper part of the laying carriage between a first and a second position which is positioned in this way are that in the first slide position as well as after a rotation of the upper part of the laying carriage by 180 ° in the second slide position the supply roll assumes a threading position in which a hanging from the supply roll The beginning of the web reaches the area of the default roller.

So far there is no cloth spreading machine with a web longitudinal control that offers the possibility of an automatic threading of the web. Therefore, in a preferred embodiment, the invention provides at least one so-called dancer roller, in particular each of the two slide positions being assigned a dancer roller which is used to control the drive device and which is in an inoperative position in the other slide position. In such a fabric laying machine, in a first carriage position, the web of material can be threaded into the laying mechanism comprising the default roller and the laying unit without the dancer roller associated with this carriage position interfering, whereupon the carriage is moved to its second position to lay out the material web, and thereby the dancer roller assigned to it is brought into effect. The basic idea of the invention, however, has the advantage above all with calibration / that with the so-called pairing after cutting and backing up the web of material from the laying mechanism, the upper part of the laying carriage only has to be ^{rotated by 180 e} / in order to bring the slide back into its threading position without that it

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April 10, 1984

this requires the carriage to be moved - with the so-called pairing, there are always two layers of the material web with one or the other side of the material web lying opposite one another on the support, which is usually designed as a table top.

The dancer rollers could, for example, be brought into their operative position by means of electrical drive means controlled by the carriage and brought to their inoperative position, in an embodiment preferred for its simplicity of the cloth laying machine according to the invention are the Dancer rollers, however, are mounted on rockers sprung against the web, in each of the two slide positions the swing of one of the dancer rollers are held down by the carriage so that this Dancer roller is in its inoperative position.

Oa the material web during the delivery the default roller must wrap around a certain circumferential angle, could proceed in such a way that in the threading position of the carriage the one hanging from the supply roll The beginning of the web initially (in the delivery direction of travel of the laying carriage) hangs behind the specification roller and the With the supply roll rotating and the feed roll stationary, the slide is only pushed forward so far until the material web is placed over the feed roller and a loop has formed behind it. A reliable definition of the wrap angle of the default roller by the material web also when starting up and braking of the laying carriage occurs, however, when 2war is in the threading position of the hanging one The beginning of the web hangs behind the default roller, but one from an ineffective rest position over the. Specification roller displaceable away into a working position

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April 10, 1984

Web deflection roller is provided, through which the web of material is partially wrapped around the default roller Course can be brought.

In order to unwind the web of material from the supply roll, it could be arranged on a shaft and the shaft could be driven at a variable speed so that the web delivery speed remains constant despite the decreasing roll diameter s. In a preferred embodiment of the cloth spreading machine according to the invention, however, a drive roller that can be placed against the circumference of the supply roll is provided for unwinding the web of material. Cm in a simple way to ensure that the circumference of the supply roll always rests against the drive roller, one can design the bearing device held by the carriage so that it has an inclined guide for a supply roll axis or shaft relative to the horizontal in the direction of the drive roller. In order to be able to adjust the contact pressure between the supply roll and the drive roller and, if necessary, keep it constant, it may be advisable to make the inclination of the supply roll guide variable and, if necessary, to provide a motorized adjustment device for the inclination of the supply roll guide.

Corresponds to that of the drive device when the beginning of the material web is automatically threaded into the laying mechanism caused the direction of rotation of the supply roll not its unwinding direction of rotation, this can be done with a preferred embodiment of the cloth laying machine according to the invention simply eliminate / that below

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April 10, 1984 -10-

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f the supply roll and a first Abf above the default roll, Sensing device for the beginning of the material web for reversing

the drive device for unwinding the supply roll

('is provided. The scanning device is

preferably around a light barrier. This can now be queried, for example, after a certain number of revolutions of the supply roll, but better after a time interval determined by a timer has elapsed, with dj-s. _: Timer is started by switching on the drive device for unwinding the supply roll.

So-called edge controls are known in fabric laying machines; they usually have two light barriers, which are arranged transversely to the web running direction at a small distance from one another in the area of one of the longitudinal edges of the web and control an adjustment device that allows the supply roll to be level in the axial direction until only one of the two light barriers the Web recorded. This principle can also be used in the fabric laying machine according to the invention, in which the upper part of the laying carriage can be displaced relative to the laying carriage frame by a transverse adjustment motor transversely to the direction of travel of the laying carriage and a second scanning device controlling the transverse adjustment motor is provided for one of the longitudinal edges of the material web above the default roller. In this way, the supply roll can be centered before the beginning of the web of material is placed on the process _; - \ bewalze reached. The drive device for unwinding the supply roll is expediently switched off during centering / and in order to activate the edge control during automatic threading at the right time, it is advisable to use the first scanning device

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April 10, 1984 -11-

start a second timer for the beginning of the web, after which the drive device for unwinding the supply roll is stopped and the supply roll is centered. It is beneficial / if the second When it expires, a third timer starts which defines the period of time available for centering the supply roll and at the end of it the drive device 2 for unwinding the supply roll turns on again.

For two reasons, when threading the material web into the laying system, the default roller is only switched on when the web deflection roller has already been moved into its working position, which is caused by the process of the third Timer could have been triggered. As normally during the automatic threading of the laying carriage will stand still, the default roller during the laying process, however, according to the travel speed of the laying carriage has to be driven, provides a preferred embodiment of the scaffolding machine according to the invention before that the default roller is decoupled from the laying carriage wheels by a first coupling and can be driven by an auxiliary motor via a second clutch. A limit switch for the working position of the web deflection roller can open the first clutch, engage the second clutch and the Set the auxiliary motor in motion so that it is in its working position after the web deflection roller has moved in Both the supply roll and the default roll rotate and the beginning of the web in the direction of the laying unit continues. But it would also be conceivable that during the

A 45 982 b April 10, 1984 b-204

Already center the web of material on the supply roll hangs down over the default roller / that the web deflection roller can be retracted into its working position when the supply roll is stationary and then the drive device for unwinding the supply roll and the auxiliary motor for driving the preset roller are switched on simultaneously; However, this would have the disadvantage that the web is exposed to a considerable length pull by the retraction of the web deflection roller / which one will try to avoid especially with light fabrics. In the preferred embodiment of the The cloth laying machine according to the invention is thus through a first limit switch assigned to the working position of the deflection roller, only the auxiliary motor is switched on, while the supply roll rotates into its working position while the deflection roller is being retracted.

In order to save time, especially for laying in pairs, it is advisable to use a first limit switch Switchable carriage drive motor to move the carriage from the threading position to the other Slide position provided so that the supply roll at the beginning of the laying process is already in a The position in which you can do 180 ° by turning the upper part of the laying carriage again over the default roller and the laying aggfegat can be brought.

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To end the threading process, it is advantageous to arrange a third scanning device for the beginning of the web in the area of the laying unit, by means of which the second clutch is opened and the auxiliary motor is switched off when the start of the web has reached the laying unit or has pushed through it. The first clutch is then expediently also engaged by this third scanning device, so that the default roller then rotates during laying in accordance with the traveling speed of the laying carriage. In addition, the third scanning device can be used to switch off the drive device for unwinding the supply roll at the end of the threading process. Laying units usually have a clamping device for the web of material. This is also recommended for the fabric laying machine according to the invention, it being particularly advantageous if the clamping device provided in the laying unit can be switched on by the third scanning device.

Finally, the invention relates to an automatic one Threading process, which is described in detail below shall be.

Further features, advantages and details of the invention emerge from the following description as well as from attached drawing of a preferred embodiment of the cloth laying machine according to the invention, with which of course can be laid out not only textile materials, but also foils and other flat material; in the Drawing show:

A45 982 b

April 10, 1984 -14-

Figure 1 the laying carriage with part of the support in the side view / with the web of material Supply roll is in its threading position;

Figure 2 the upper area of the laying carriage / after the carriage carrying the supply roll has been moved into the position which he takes during the laying process;

FIG. 3 shows the parts shown in FIG. 2, but after the upper part of the laying carriage has been rotated the position shown in Figure 2 out by 180 °, so that the supply roll again is in its threading position;

FIG. 4 shows the state of the upper area of the laying carriage after threading in the position shown in Figure 3 and after the process of the carriage carrying the supply roll into the one occupied during laying Position;

Figure 5 the area do the default roller with this

Web guide roller and two light barriers the scanning device for correct positioning of one longitudinal edge of the web, and

FIG. 6 shows a view of the two light barriers of the edge control forming the second scanning device, seen in the direction of arrow A in FIG.

nilHi 'TTlIr' rr rir "Mm— - τ '-«

A 45 982 b _ ₁₅ _

April 10, 1984

FIG. 1 shows a view of one of the long sides of a table 10, which is held by a frame (not shown) and forms a support on which layers of material are to be laid out one above the other. On the frame, not shown, below the table 10, rails running in the longitudinal direction of the table are fastened on both sides, namely a support rail 12 and a guide rail 14 10 has a laying carriage frame 18 extending away, in which two rollers 20 with ir.it flanges are rotatably mounted on both sides of the table, via which the laying carriage is supported on the support rails 12. For the drive of the laying carriage, a drive motor 22 is provided which is attached to the laying carriage frame and on the shaft of which a sprocket 24 is attached, which drives the rollers 20 via a chain 26 and chain wheels 28 firmly connected to the one pair of rollers 20.

In the laying carriage frame 18, a default roller 30 is rotatably mounted, with the shaft two chain wheels 32 and 34 are firmly connected. A coupling K1 is also mounted in the laying carriage frame 18, via which two coaxially arranged chain wheels 38a and 38b can be coupled to one another. The connection of the sprocket 32 with the sprocket 38a is a chain 40 / while over the sprocket 38b a Chain 42 runs / which leads to one with the one according to FIG. 1 left sprocket 28 coaxial and firmly connected to this sprocket 44 leads.

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April 10, 1984 / b-204

Via the clutch K1, the default roller can be adjusted according to the travel speed of the laying carriage drive, with the different wheel diameters and the diameter of the default roller 30 are matched to one another so that the circumferential speed of the default roller 30 corresponds to the travel speed of the laying carriage 16 when the default roller moves over the rollers 20 is driven. The assembly labeled K1 can also have a gearbox with an infinitely variable gear ratio included in order to take into account a slippage of the material web on the default roller. For the automatic However, threading is still an auxiliary motor for.the.speed roller.30 M1 is provided, which drives a chain wheel 48 via a clutch K2, via which and the chain wheel 34 a chain runs. The motor MI can be flanged to the clutch K2, and this in turn is on a side wall of the Laying carriage frame 18 attached.

A laying unit 52 is guided in a conventional manner on the laying carriage frame so as to be vertically displaceable, with Means not shown are provided in order to fix the laying unit in terms of its height. This laying unit, like the default roller 30, extends across the table 10 and serves to deflect it a web of material 56 unwound from a supply roll 54. The laying unit has for this purpose one that also extends across the table 10, funnel 58 formed by side walls 56a and 58b into which the web 56 slides from above, is then deflected by the side wall 58a by approximately and finally from a not shown Slot according to FIG. 1 emerges from the laying unit 52 on the right. Against the side wall 58a can a clamping strip 60 running in the longitudinal direction of the laying unit 52 can be pressed in order to hold the web 56 in place. This terminal strip is on swivel arms 62

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attached, which can be pivoted counterclockwise from the effective position shown in Figure 1 by means of a motor M5, so that then the terminal strip 60 the web 56 releases. In so far as it has been described so far, the laying unit 52 is a known component common fabric laying machines, se that on one detailed description and graphic representation can be dispensed with.

According to the invention, however, there is a light barrier on the laying unit L2 for detecting the lower edge of an end of the material web 56 hanging down from the supply roll 54 appropriate.

On the laying carriage frame 18 is by means of a ring of Balls 66 a carousel 68 rotatably mounted about a vertical axis. This carousel is part of the upper part of the laying carriage 70 and carries a transverse guide bed 72 in which a transverse slide is mounted by means of a dovetail guide 74 is guided displaceably perpendicular to the plane of the drawing in FIG. The displacement of the cross slide serve a motor M6 attached to the transverse guide bed 72, which drives a threaded spindle 76 on which an am Cross slide 74 attached nut, not shown, runs. On the cross slide 74 are one behind the other (viewed perpendicular to the plane of the drawing in FIG. 1) and two as guide rails at a transverse distance from one another serving longitudinal beams 78 attached to which one carried by them, displaceable in the longitudinal direction of this beam Longitudinal carriage 80 is performed. This forms a frame with two side walls 82 which, viewed perpendicular to the plane of the drawing d, of FIG. 1, lie one behind the other and

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whose distance from one another is slightly larger than the width the widest web 56 to be laid out - the transverse spacing of the longitudinal beams 78 from one another corresponds to the transverse spacing of the side walls 82. A motor M3 is attached to one of these side walls / which has a pinion 84 in a toothed rack attached to the front longitudinal member 78 engages, so that the longitudinal slide with its help along the carrier 78 can move back and forth. Weitfz above an axle 88 is attached between the side walls 82 / which serves to support a drive roller 90, which is also used a sprocket 92 firmly connected i, st. about the latter and a sprocket 94 of a motor M2 runs a chain. Furthermore, two carrier rockers 98 are rotatably mounted on the axle 88 on both sides of the drive roller 90 each has a downwardly pointing actuator arm 100. The two adjusting arms are parallel to the axis 88 by one extending rod, not shown, firmly connected to one another, and on the front actuating arm according to FIG is. a pull cable 102 attached, the other end of which is fixedly inserted on a shaft 104 of a motor M7, so that adjust the inclination of the carrier arms with the aid of the M7 motor. An axis T06 rests on the latter, which carries the supply roll 54 and around which the latter can rotate. As a result of the inclination of the carrier arms the supply roll 54 always rests with its periphery against the periphery of the drive roller 90, the contact pressure increasing can be adjusted by the inclination of the carrier arms.

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April 10, 1984

Between the rare walls 82 of the longitudinal slide 80, below the supply roll 54, a funnel 110 is formed Sheets attached »and these funnel side walls 112 and 114 end at the bottom of guide rollers 116 for the web There is a window in the hopper sidewall 112 for the light source of a light barrier L1 / which is assigned a reflector on the other funnel side wall 114 can be, between the deflection rollers 116 and the default roller 30, see another on the laying carriage frame 18 fixed, but rotatably attached deflection roller 120 and one deflection roller 122 / whose holder will be explained in more detail later.

Limit switches E5 and E6 are assigned to the two positions of the carousel 68 shown in FIGS. 1 and 3, which are actuated by a cam attached to the carousel 68 and the switching off of a not shown Serve the motor by which the carousel 68 is rotated. The two end positions shown in FIGS of the longitudinal slide 80 are associated with limit switches E4 and E3 which are attached to one of the longitudinal beams 78 and which e.g. operated by one of the side walls 82 and used to switch off the motor M3.

According to the invention, each of the end positions of the longitudinal slide 80 is now assigned a so-called dancer roller via which the longitudinal tension of the material web during laying out can regulate. The end position of the longitudinal slide defined by the limit switch E3 and shown in FIG 80 is assigned a first dancer roller 130, which -

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* I CIII

Ά 45 982 b

April 10, 1984 " ² ° -

⁴ * n viewed from the top view - extends between the longitudinal beams 78 parallel to the axis 88 and is rotatably mounted with both ends in first dance rockers 132, which are articulated on first dancer swing arm bearings 134 attached to the longitudinal beams 78 and strive not to move under the action To erect the illustrated springs from a horizontal position by pivoting them counterclockwise. In the area of one of the two dancer arm bearings 134 there is an adjusting element (not shown), in particular a rotary potentiometer, which is actuated by the one dancer arm 132 and controls the speed of the motor M2. In FIG. 2, three positions of the dancer arms 132 are shown in dash-dotted lines, namely a middle position marked "0" in which the motor M2 runs at normal speed, a position further above marked "-" in which the longitudinal tension of the web 56 is too small is and in the consequence the speed of the motor M2 is reduced, as well as a lower position below the middle position, labeled "+", in which the longitudinal tensile stress of the web 56 is too great and in which, as a result, the speed of the Motor M2 is increased. In the position of the longitudinal slide 80 shown in Figure 1, this holds the first dancer arms 132 against the action of their springs in an ineffective, approximately horizontal rest position, whereas the cage slide releases the first dancer arms 132 when it is in its The end position shown, determined by the limit switch E3, is shifted.

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April 10, 1984

In the same way, the end positions shown in FIG. 1 and defined by the limit switch £ 4 are two second ones Dancer rockers 142 associated with a second dancer roller 140, with the second dancer rocker 142. Dancer arm bearings 144 are provided on the side members 78. The puncture of the dancer roll 140 is the same as that that of the dancer roller 130, which the latter can only become effective when the binding switch S3 is actuated is, while the second dancer roller 140 can only be effective when the limit switch E4 is actuated.

Around the longitudinal pour 80 relatively smoothly To be able to move on the side rails 78, it has four on each side, i.e. for each of the side rails Castors 150.

FIG. 5 shows that the deflection roller is mounted on both sides in articulated rockers 160 which, under the action of tension springs 162, tend to buckle and are fastened to a common shaft 164. An M4 motor is used to drive this shaft. Under the action of the tension springs 162, the turning roll 122 rests with its exposed in the end portions of the core 122a always against stationary guide curves 166 at _r which determine the movement path of the deflecting roller 122nd FIG. 5 shows the deflecting roller 122 with the articulated rocker arms 160 with solid lines in the working position, but in the inactive rest position with dash-dotted lines (right in FIG. 5).

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April 10, 1984 " ²² ~

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Finally, FIGS. 5 and 6 leave a scanning device 170 for one longitudinal edge 56a of the web of material recognize. This scanning device has in the running direction of the monitor track arranged one above the other, but against each other transversely offset light barriers L3A and L3B on / them a common reflector L3C is assigned and the motor M6 for adjusting the cross slide 74 so control that the long edge 56a between the two Light barriers L3A and L3B runs. Supports 180, 182 and 184 shown in FIG. 5 for the various elements to hold the deflection roller 122 and the scanning device 170 are all attached to the laying carriage frame 18. Finally, two limit switches E1 and E2 were mounted on the carrier 186, one of which is in the working position (E1) and in the rest position (E2) is actuated by one of the articulated rockers 160.

The method according to the invention is now intended below and the mode of operation of the cloth laying machine shown are explained.

. '■ First of all, the method of automatic threading

% can be explained, which can be done, for example, by pressing a

ί Switch Di (see Figure 1) initiated on the laying carriage 16

will. When the manual switch D1 is closed, the motor M2 is switched on so that the supply roll 54 turns; At the same time, a timer T1 is started by which the direction of rotation of the motor M2 is reversed.

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April 10, 1984

if after expiry of the time interval T1 assigned to the timer T1 the light barrier L1 has not yet detected the beginning of the web 56 - in this case it was rotating the supply roll 54 initially so that the web was not unwound.

If the light barrier LI responds, it starts a second one Timing element T2, the time interval Z2 of which is dimensioned so that the start of the web of material is up to approximately the level of the Axis default roller 30 arrives and thus hangs geroäss Figure 1 to the right of the default roller, and that except the one longitudinal edge of the web 56 by the scanning device 170 (L3A and L3B) for the edge control is captured. When the time interval Z2 has elapsed, the timer T2 switches off the motor M2 and starts it up Timing element T3 and activates the edge control, the time interval Z3 is dimensioned so that the supply roll 54 can be centered by the edge control, which is then the The case is when the longitudinal edge 56a * by actuating the motor M6 through the light barriers L3A and L3B lies between these, as shown in FIG.

After the time interval Z3 has elapsed, the timing element T3 switches on the motors M2 and M4, so that the supply roll 54 rotates again and the deflection roll 122 is pivoted from its rest position into its left working position according to FIG. One of the articulated rocker arms 160 actuates the limit switch E1, through which the motor VA again

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fit

I L · ·

9 ι lilt

A 45 982 b April 10, 1984 b-204

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is switched off. The fact that during pivoting the deflection roller 122 in its working position the supply roll Unwinding goods, a longitudinal pull cannot arise in the material web, although the default roller 30 is stationary. This only begins to turn when the limit switch E1 has been actuated, since this is the clutch K1 is opened, the clutch K2 is closed and the motor HI is switched on. So it turns then both the supply roll 54 and the default roll

The limit switch E1 also switches on the motor M3, which removes the longitudinal slide 80 from its position shown in FIG one end position is moved out in the direction of the second end position, which is shown in phantom in FIG and was shown in Figure 2 with solid lines. Before the longitudinal slide 80 is the first Tanzerschwingen 132 releases, reaches the beginning of the web the terminal strip 60 and is held by this: In the embodiment shown, sf ortn starts the light barrier L2 has a timing element T4, the time interval Z4 defined by this timing element being dimensioned as follows / is that meanwhile the beginning of the web covers the distance from the light barrier L2 to below the terminal strip 60 covered. After the time interval Z4 has elapsed, the timer T4 switches off the motors M1 and M2 and actuates them the motor M5 for the terminal strip 60, so that it holds the web when the longitudinal slide 80 the first dancer swing 132 releases. Of course it could

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the light barrier L2 is also arranged in the area of the terminal strip or in the running direction of the web behind it in order to be able to do without the fourth timing element T £.

Finally, the longitudinal slide 80 actuates the limit switch E3, via which the motor M3 is switched off.

Either at the time of closing the terminal strip or, which is less advantageous, by actuating the Limit switch E3, clutch K2 is opened and clutch K1 is closed.

The fabric laying machine is now ready to lay out and can, for example, start laying out the material web the terminal strip 60 opened and the traction motor 22 and the motor M2 by a start switch, not shown be switched on, the laying carriage 16 then moving from the right according to FIGS. 1 and 2 sets in motion to the left.

After describing the method according to the invention and the function of the cloth laying machine according to the invention it is understandable that the following motors can be used to advantage: A DC brake gear motor with direct current brake for the motor MI, a direct current permanent gear motor with tachometer generator and controller

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for controlling the motor speed for motor M2 as well as three-phase brake gear motors for motors M3, M4 and M5.

If the web 56 is to be laid out in pairs, after reaching the left end position of the laying carriage 16 according to FIGS Figures 1 and 2 cut off. While the laying carriage 16 then moves back from its left to its right end position along the table 10, the web 56 is rewound after opening the terminal strip 60 by pressing the switch D2 "automatic threading out" and thereby withdrawn from the laying unit and all other parts of the laying system . According to the invention, however, this automatic, complete rewinding of the web takes place only after the front edge of the web 56 has passed the light barrier L2; beforehand it is necessary to keep the switch D2 actuated. Furthermore, the circuit is advantageously designed so that when rewinding the motor M2 is switched off as soon as the front edge of the web 56 has passed the light barrier L1. Then the upper part 70 of the laying carriage is rotated by iC0 ^e into its position shown in FIG

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again in their threading position. Then takes place by pressing the switch D1 again the automatic Threading the web into the laying system.

If the laying carriage 16 is to be used to move back within a completely or partially laid out web layer, the switch D3 "rewind" is actuated; the laying trolley 16 then moves from left to right, and the The length of the web is controlled by the dancer roll that is in operation rewound onto the supply roll 54.

Of course, the supply roll 54 could also be over driven by a shaft carrying them or the web 56 for the purpose of threading in by hand from the supply roll subtracted from.

Instead of the dancer rollers 130, 140 arranged on the upper part of the laying carriage, between the upper part of the laying carriage and Specification roller 30, one or more dancer rollers may be provided.

The timer T3 could also be saved when the conclusion the centering of the one longitudinal edge of the material web is reported by the edge control / for example by inquiries of the light barriers L3A and L3B (one free, one covered), whereupon the motor M2 is switched on and the deflection roller 122 is retracted. Likewise, after switching on the edge control, the motor M6 could be queried for standstill will.

Claims (1)

HOEGER, ST.E ^ i_FiE ^ BT ^: & ^: PARTNER PATENTANWÄLTE UHLANDSTRASSE 14 c D 7O00 STUTTGART t A 45 982 b Note : Krauss and Reichert April 10, 1984 GmbH & Co. KG b-204 special machine factory Stuttgarter Strasse 7012 Fellbach EXPECTATIONS 1. Cloth laying machine with a lengthways one support movable laying trolley with running wheels, softer a laying trolley frame and above it eiB has the upper part of the laying carriage rotatable about a vertical axis, on which at least one slide is approximately horizontally displaceable, with a bearing device held by the carriage for a web supply roll, a drive device for unwinding the supply roll, one im Laying trolley frame with axis parallel to the supply roll axis rotatably mounted, according to the travel speed of the laying carriage drivable material web presetting roller, as well as one held on the laying carriage frame Laying unit for deflecting and cutting off the web, characterized in that the Carriage (80) on the upper part of the laying carriage (70) between a first and a second position is movable, which are positioned such that in the first slide position as well as after a rotation of the upper part of the laying carriage by 180 * in the second slide position on from the supply roll (54) the beginning of the material web hanging down reaches the area of the default roller (30). 2. Cloth laying machine according to claim 1, characterized in that that at least one dancer roller (130, 140) is provided between the supply roller (54) and the default roller (30). -2- * * 4 t • · · · · * * · · I * A 45 982 b -2- April 10, 1984 / b-204 3. Stofflegerascfciiie according to claim 2, characterized in that each of the a dancer roller (130, 140) serving to regulate the drive device (M2) is assigned to both slide positions is, which is in the respective other slide position in an inoperative position. 4. Cloth laying machine according to one of claims 1 to 3, characterized in that, in the threading position, the hanging fabric web initially hangs behind the input roller (30) and that an i. Material web deflecting roller (122) is provided which can be displaced from an ineffective rest position over the default roller f into a working position, by means of which material web (56) can be brought into a course partially wrapping around the default roller. 5. Cloth laying machine according to one of claims 1 to 4, characterized in that the supply roll (54) is in the threading position located approximately above the default roller (30) and that in the other slide position the Material web (56) from the supply roll f54) via the respective effective dancer roll (130, 140) to the default roll (30) runs. 6. cloth laying machine according to one or more of the preceding claims, characterized in that the Storage device (98) inclined relative to the horizontal in the direction of a drive roller (90) Has guide for a supply roll axis (106) and that the drive roller (90) against the circumference of the Supply roll (54) can be placed and driven by the drive device (M2 / 92, 94, 96). A 45 982 b -3- April 10, 1984 Cloth laying machine according to one or more of the preceding Claims, characterized by a motorized adjustment device (100, 102, 104, M7) for the inclination of the supply roll guide (98). Cloth spreading machine according to one or more of the preceding claims / characterized in that below the supply roll (54) and above the default roll (30) a first scanning device (L1) for the beginning of the material web for reversing the drive device (M2) is provided for unwinding the supply roll (54). 9. cloth laying machine according to one or more of the preceding claims, characterized. That the upper part of the laying carriage (70) opposite the laying carriage frame (18) by a transverse adjustment motor (M6) across Slidable to the direction of travel of the laying carriage and a transverse adjustment motor above the default roller (30) (M6) controlling second scanning device (170) is provided for one of the longitudinal edges of the material web (56a). 10. StofflegemasGhine according to one or more of the preceding Claims, characterized in that the pre-setting roller (30) by a first clutch (K1) from the laying carriage wheels (20) uncoupled and over a second clutch K2 can be driven by an auxiliary motor (M1). A 45 962 b April 10, 1984 ~ ⁴ ~ 11. Stofflegemasehine according to claims 4 and 10, characterized by one of the working position of the deflecting roller (122) assigned first limit switch (ED to Switching on the auxiliary motor (M1). 2. Cloth laying machine according to claim 11, characterized by a slide drive motor (M3) that can be switched on by the first limit switch (E1) for moving of the slide (80) from the threading position into the other slide position. 13. Cloth laying machine according to claim 11 or 12, characterized .by a third scanning device (L2) arranged in the area of the laying unit (52) for the beginning of the material web to open the second clutch (K2) and to switch off the auxiliary motor (M1). 14. Cloth laying machine according to claim 13, characterized in that that the first clutch (K1) can be engaged by the third scanning device (L2). 15. Cloth laying machine according to claim 13 or 14, characterized characterized in that the drive device (M2, 92, 94, 96) for unwinding the supply roll (54) through the third scanning device (L2) can be switched off. 4 f • i • «
• · ι A 45 982 b - March 19, 1985 16. Cloth laying machine according to one or more of claims 13 to 15, characterized in that im Laying unit (52) a clamping device (M5, 62) that can be switched on by the third discharge device (L2) 60) is provided for the web (56). 17. Cloth laying machine according to one or more of the preceding Claims, characterized in that the dancer rollers (130, 140) against the web (56) sprung rockers (132, 142) are mounted and that in each of the two slide positions the swing of one of the dancer rollers through the slide (80) are held down. -6-