EP0158281B1 - Machine à déposer du tissu - Google Patents

Machine à déposer du tissu Download PDF

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Publication number
EP0158281B1
EP0158281B1 EP85104069A EP85104069A EP0158281B1 EP 0158281 B1 EP0158281 B1 EP 0158281B1 EP 85104069 A EP85104069 A EP 85104069A EP 85104069 A EP85104069 A EP 85104069A EP 0158281 B1 EP0158281 B1 EP 0158281B1
Authority
EP
European Patent Office
Prior art keywords
web
laying
carriage
supply reel
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85104069A
Other languages
German (de)
English (en)
Other versions
EP0158281A2 (fr
EP0158281A3 (en
Inventor
Rolf Jung
Winfried Buchmann
Albert Buss
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.)
Krauss und Reichert GmbH and Co KG
Original Assignee
Krauss und Reichert GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krauss und Reichert GmbH and Co KG filed Critical Krauss und Reichert GmbH and Co KG
Publication of EP0158281A2 publication Critical patent/EP0158281A2/fr
Publication of EP0158281A3 publication Critical patent/EP0158281A3/de
Application granted granted Critical
Publication of EP0158281B1 publication Critical patent/EP0158281B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/106—Arrangements for effecting positive rotation of web roll in which power is applied to web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/06—Folding webs
    • B65H45/10—Folding webs transversely
    • B65H45/101—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile
    • B65H45/103—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by a carriage which reciprocates above the laying station
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/28—Folding in combination with cutting

Definitions

  • the invention relates to a fabric laying machine with a laying trolley which is motor-driven along a support and which has a laying trolley and a laying trolley frame arranged above it and displaceable relative to it by means of drive devices and rotatable about a vertical axis of rotation and having a laying trolley top held on the laying trolley top
  • Storage device for a web roll and a drive device for unwinding the stock roll with a feed roller rotatably mounted on the laying carriage frame with an axis parallel to the storage roll, which can be driven in accordance with the traveling speed of the laying carriage, and a laying unit held on the laying carriage frame for deflecting and cutting off the web.
  • the material web is laid out in the form of individual layers lying one on top of the other, so that a so-called layer stack is created, in the simplest case neither having to pay attention to the laying direction nor that the same side of the material web points in the direction of the support.
  • pair laying is a special type of laying.
  • a web having a first side and a second side is designed such that the first side of the next layer lies on the first side of a layer and the second side of a subsequent layer lies on the second side of a layer is coming.
  • the layer stack is then constructed so that the first sides and the second sides of the individual sheets lie one on top of the other.
  • the fabrics in general also have a "dash", i.e. H. have a preferred direction, so that the individual layers must always be laid out in the same laying direction and, for example, zigzag laying is not possible.
  • Pair laying is thus a very complex laying process, since after laying out each layer the fabric must be turned so that when laying out the next layer in the same laying direction as the first layer, the web is reversed.
  • This turning of the fabric should take place as quickly as possible to save time, and therefore the users place increasing importance on the fact that this turning of the fabric takes place as automatically as possible in a fabric laying machine.
  • it is also generally required for fabric spreading machines that the material web unwound from the supply roll is automatically introduced into a spreading mechanism, i. H. is threaded. It must also be taken into account here that the supply rolls can be wound with different directions of rotation, so that for such automatic threading, the material-laying machine should be designed in such a way that a different unwinding direction does not cause any problems during automatic threading.
  • DE-OS-2 922 930 discloses a fabric laying machine which is suitable, inter alia, for pair laying and which also automatically threads.
  • This comprises a laying trolley with a laying trolley frame and an upper part of the laying trolley which is arranged above it and which can be displaced transversely to a laying direction by means of drive devices and rotates about a vertical axis of rotation and on which the web roll, the preselecting roller and the laying unit are held.
  • the supply roll is displaceable in the laying direction and is positioned over the feed roller so that the web hanging from it runs on one side of the feed roller.
  • the supply roll is then shifted in the laying direction so that the web lies over the feed roller and forms a freely sagging loop on the opposite side of the feed roller.
  • the web of material hanging from the supply roll thus forms a loop, runs from it over the feed roller and from the side of the feed roller opposite the loop to the laying unit.
  • the entire top of the laying trolley including the supply roll, presetting roller and laying unit, is rotated by 180 ° after laying out each layer.
  • the laying unit must be designed so that it can be laid in two opposite directions, since otherwise the individual layers could not be laid out in the same laying direction.
  • the disadvantage of the spreading machine according to DE-OS-2 922 930 is that a laying table of such a spreading machine must be so large that it overlaps on both sides of the stack of layers by at least the width of the spreading machine, because it rotates due to the The upper part of the laying carriage, together with the laying unit, is required so that this fabric laying machine can travel beyond the stack of layers on both sides.
  • Another disadvantage is that by rotating the laying unit together with the upper part of the laying trolley, the side on which the assembly sets out the material web is constantly changing, making it difficult for an operator to observe the material web being laid out, for example to check for errors.
  • the upper part of the laying carriage is also provided with a conveyor belt running below the storage roll and parallel to the laying direction, which conveys the web hanging from the storage roll in the direction of the feed roller, so that the material web then hangs down from a front edge of the conveyor belt lying above the feed roller on one side of the feed roller and can be brought into a course wrapping around the feed roller with a deflecting roller which can be moved over the feed roller.
  • the unwinding speed of the supply roll and the speed of the conveyor belt must be exactly synchronized with the speed of the feed roller, which in turn is coupled with the speed of the laying wagon, otherwise there is a risk that the web will be laid out due to insufficient synchronization when the web is laid out of the individual speeds is warped or fed with folds to the preselection roller, so that this can ultimately result in an uneven laying of the web or fold formation.
  • an object of the invention to provide an automatically threading fabric laying machine which u. a. is also suitable for pairing, to improve in such a way that an uneven pulling of the web into the delivery mechanism is largely excluded both when threading the web as well as when laying.
  • the upper part of the laying carriage has a carriage carrying the storage device for the supply roll, that at least one guide element for the web to be unwound is provided on the carriage below the supply roll, approximately parallel to the supply roll axis , which is designed in such a way that the web of material always hangs down from the carriage at approximately the same point on the carriage, irrespective of the unwinding direction of the supply roll, and that the carriage can be moved by hand or by motor parallel to the laying direction from a first to a second position and vice versa, whereby the carriage is positioned in the first position as well as after a rotation through 180 ° in the second position in such a way that a beginning of the web hanging from the supply roll reaches the area of the input roller.
  • This solution according to the invention has the advantage that, on the one hand, there are no problems due to uneven drawing and threading of the material web, since the material web is pulled smoothly by hanging from the carriage, and, on the other hand, the material laying machine according to DE OS-2 922 930 existing disadvantages can be avoided, since the laying unit is not rotated with the slide and the web is always suspended at the same distance from the default roller by the additional guide element arranged below the slide.
  • the invention provides for at least one so-called dancer roller, with in particular each of the two slide positions being assigned a dancer roller which serves to regulate the drive device and which is in an ineffective position in the other slide position.
  • the web can be threaded into the laying mechanism comprising the feed roller and the laying unit in a first carriage position without the dancer roller associated with this carriage position interfering, whereupon the carriage is moved to its second position for laying out the fabric web and thereby the fabric web in a simpler manner Way pulled over the associated dancer roller and at the same time the dancer roller is brought into effect.
  • the invention brings with it the advantage of this exemplary embodiment in particular that the so-called pairing after cutting and rewinding the web from the laying mechanism means that the top of the laying carriage only has to be rotated by 180 ° to bring the carriage back into its threading position without the need to move the carriage.
  • the dancer rollers could e.g. B. by means of the slide controlled electrical drive means in their effective and ineffective position, in a preferred embodiment of the fabric laying machine according to the invention because of their simplicity, the dancer rollers are mounted on springs suspended against the web, with the wings of one in each of the two slide positions the dancer rollers are held down by the carriage, so that this dancer roller is in its inactive position.
  • a drive roller that can be placed against the circumference of the supply roll is provided for unwinding the material web.
  • the bearing device held by the slide can be designed such that it has a guide for a supply roll axis or shaft which is inclined with respect to the horizontal in the direction of the drive roll.
  • the direction of rotation of the supply roll caused by the drive device does not correspond to the unwinding direction of rotation of the supply roll during the automatic threading of the beginning of the web into the laying mechanism, this can be eliminated in a preferred embodiment of the fabric-laying machine according to the invention simply by a first scanning device for the supply roll below the supply roll and above Web start for reversing the drive device for unwinding the supply roll is provided.
  • the scanning device is preferably a light barrier. This can now e.g. B. after a certain number of revolutions of the supply roll, but better after a time interval determined by a timer, the timer is started by switching on the drive device to unwind the supply roll.
  • Edge controls are known in fabric laying machines; they usually have two light barriers, which are located at a short distance from one another in the region of one of the transverse directions of the web Longitudinal web edges are arranged and control an adjusting device, via which the supply roll can be moved in the axial direction until only one of the two light barriers detects the web.
  • This principle can also be applied to the fabric-laying machine according to the invention, in which the upper part of the laying carriage can then be moved transversely to the laying carriage travel directions with respect to the laying carriage frame and a second scanning device controlling the transverse adjusting motor for one of the longitudinal edges of the web is provided above the presetting roller. In this way, the supply roll can be centered before the beginning of the web reaches the feed roller.
  • the drive device for unwinding the supply roll is switched off during centering, and in order to arm the edge control during automatic threading at the right time, it is advisable to start a second timer by the first scanning device for the start of the web, after which the drive device for Unwinding the supply roll is stopped and the supply roll is centered. It is advantageous if the second timer starts a third timer when it expires, which defines the time period available for centering the supply roll and at the end of which the drive device for unwinding the supply roll switches on again.
  • a preferred embodiment of the fabric laying machine provides that the feed roller is uncoupled from the laying car wheels and over by a first clutch a second clutch can be driven by an auxiliary motor.
  • a limit switch for the working position of the web deflection roller can open the first clutch, engage the second clutch and start the auxiliary motor, so that after the retraction of the web deflection roller into its working position, both the supply roll and the default roller rotate and the web start continues in the direction of the laying unit.
  • a slide drive motor that can be switched on by this first limit switch is expediently provided for moving the slide from the threading position into the other slide position, so that the supply roll is already in a position at the beginning of the laying process in which it is can be brought over the input roller and the laying unit again by turning the upper part of the laying carriage by 180 °.
  • 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 beginning of the web has reached or pushed through the laying unit.
  • This third scanning device then also expediently engages the first clutch, so that the set roller then rotates when laying in accordance with the speed of the laying carriage.
  • 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. 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.
  • 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 fabric are to be laid out one above the other.
  • a frame not shown
  • rails are attached underneath the table 10 on both sides in the longitudinal direction of the table, namely a support rail 12 and a guide rail 14. They serve to support and guide a laying carriage, designated as a whole by 16, which as a lower part is located over the table 10 has extending laying car frame 18, in each of which two castors 20 provided with wheel flanges are rotatably mounted on both sides of the table, by means of which the laying car is supported on the mounting rails 12.
  • a driving motor 22 is provided on the laying car frame 18, on the shaft of which a chain wheel 24 is fastened, which drives the running wheels 20 via a chain 26 and chain wheels 28 which are firmly connected to the pair of running wheels 20.
  • a specification roller 30 is also rotatably mounted, with the shaft of which two sprockets 32 and 34 are firmly connected.
  • a clutch 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.
  • a chain 40 is used to connect the sprocket 32 to the sprocket 38a, while a chain 42 extends over the sprocket 38b and leads to a sprocket 44 which is coaxial with the sprocket 28 on the left in FIG. 1 and is firmly connected to it.
  • the specification roller 30 can thus be driven in accordance with the travel speed of the laying carriage 16, the various wheel diameters and the diameter of the specification roller 30 being coordinated with one another in such a way that the peripheral speed of the specification roller 30 corresponds to the traveling speed of the laying carriage 16 when the specification roller over the rollers 20 is driven.
  • the assembly labeled K1 can also contain a gearbox with a continuously variable transmission ratio in order to take account of slippage of the material web on the specification roller.
  • an auxiliary motor M1 is also provided for the preset roller 30, which drives a chain wheel 46 via a clutch K2, over which and the chain wheel 34 runs a chain 50.
  • the motor M1 can be flanged to the coupling K2, which in turn is fastened to a side wall of the laying carriage frame 18.
  • a laying unit 52 is guided in a height-adjustable manner in a conventional manner on the laying carriage frame, means not shown being provided in order to fix the laying unit with respect to its height.
  • This laying unit like the specification roller 30, extends across the table 10 and serves to deflect a web 56 unwound from a supply roll 54.
  • the laying unit 52 has a side wall 58a and 58b which also extends across the table 10 Funnel 58 into which the web 56 slides from above, is then deflected by approximately 90 ° through the side wall 58a and finally exits the laying unit 52 on the right from a slot, not shown, as shown in FIG. 1.
  • a clamping strip 60 running in the longitudinal direction of the laying unit 52 can be pressed against the side wall 58a in order to hold the web 56 in place.
  • This terminal strip is attached to swivel arms 62 which can be pivoted counterclockwise from the effective position shown in FIG. 1 by means of a motor M5, so that the terminal strip 60 then releases the web 56.
  • the laying unit 52 is a known component of conventional fabric laying machines, so that a more detailed description and graphic representation can be dispensed with.
  • a light barrier L2 is attached to the laying unit for detecting the lower edge of an end of the web 56 hanging from the supply roll 54.
  • the pivot bearing 66 (FIGS. 7 and 8) comprises a plate 66a lying on the laying carriage frame 18, which extends essentially in the horizontal direction, and a stay bolt 66b which is held on the laying carriage frame 18 and arranged coaxially to the vertical axis 67. On this plate 66a runs a ring of rollers 66c, which are guided in a roller cage 66d rotatably mounted on the stud 66b.
  • the carousel 68 in turn is supported on the rollers 66c by a disk 68a parallel to the plate 66a, which is also rotatably mounted on the stud 66b and thus transmits forces directed parallel to the vertical axis to the rollers 66c.
  • an edge 68b of the disk 68a is flanged downwards in the direction of the plate 66a, so that it runs parallel to the vertical axis 67 and partially obscures the ring of rollers 66c.
  • a guide ring 68c for a drive chain 69a which runs parallel to the plate 66a and extends in the radial direction with respect to the vertical axis.
  • a drive 69 for rotating the carousel 68 has a drive motor 69b with a shaft 69c parallel to the vertical axis 67, on which a drive pinion 69d for the drive chain 69a is seated.
  • the drive chain 69a extends around the drive sprocket 69d and from there around the disk 68a, it abuts the edge 68b and is secured against slipping downwards by the guide ring 68c.
  • the drive chain 69a is fixed to the disk 68a by means of a tab 68d, which is held on the edge 68b in such a way that the carousel 68 is driven by the drive motor 69b and the drive chain 69a by 180 ° in one direction and again by 180 ° in the opposite Direction is rotatable.
  • This carousel 68 is part of an upper carriage part 70 and carries a transverse guide bed 72, in which a transverse slide 74 is slidably guided perpendicularly to the plane of the drawing in FIG. 1 by means of a dovetail guide.
  • a motor M6 which is attached to the transverse guide bed 72 and which drives a threaded spindle 76 on which a nut (not shown) attached to the transverse carriage 74 runs, serves to shift the cross slide.
  • two longitudinal beams 78 serving as guide rails are fastened one behind the other (viewed perpendicularly to the plane of the drawing in FIG.
  • An axis 88 is fastened further up between the side walls 82 and serves to mount a drive roller 90 which is firmly connected to a chain wheel 92.
  • a chain 96 runs over the latter and a sprocket 94 of a motor M2.
  • two carrier rockers 98 each of which has an actuating arm 100 pointing downward, are rotatably mounted on the axis 88 on both sides of the drive roller 90.
  • the two actuating arms are fixedly connected to one another by a rod (not shown) running parallel to the axis 88, and a traction cable 102 is attached to the front actuating arm according to FIG.
  • a funnel 110 Between the side walls 82 of the longitudinal slide 80, sheets forming a funnel 110 are fastened below the supply roll 54, and the funnel side walls 112 and 114 end at the bottom on deflection rollers 116 for the web 56.
  • the funnel side wall 112 In the funnel side wall 112 there is a window for the light source of a light barrier L1, which can be assigned a reflector on the other funnel side wall 114.
  • a deflecting roller 120 fixedly but rotatably attached to the laying carriage frame 18 and a deflecting roller 122 which can be swiveled back and forth between a right rest position and a left working position, the holder of which will be explained in more detail later.
  • the two positions of the carousel 68 shown in FIGS. 1 and 3 are assigned limit switches E5 and E6, which are actuated by a cam 124 attached to the carousel 68 and serve to switch off the drive motor 69b, by means of which the carousel 68 is rotated.
  • the two end positions of the longitudinal slide 80 shown in FIGS. 1 and 2 are assigned to one of the longitudinal beams 78 attached limit switches E4 and E3, which, for. B. are operated by one of the side walls 82 and serve to switch off the motor M3.
  • first dancer roller 130 which, viewed in plan view (FIG. 9), extends between the longitudinal beams 78 parallel to the axis 88 and with its two ends is rotatably mounted in first dancer wings 132, which are articulated on first dancer arm bearings 134 fastened to the longitudinal members 78 and strive to straighten out from a horizontal position by pivoting counterclockwise under the action of springs, not shown.
  • the pair of rollers 133 is arranged on the longitudinal slide 80 in such a way that one of the rollers 133 is at the same distance from the respective carrier 78 as the dancer rocker 132 associated therewith (FIG. 9), so that when the longitudinal slide 80 is moved, for example, from the position according to Fig. 2 in the position shown in FIG. 1, the rollers 133 act on the dancer wings 132 and press downwards in the clockwise direction.
  • rollers 133 are arranged on the longitudinal slide 80 so far above the dancer wings 132 that they hold them in the inactive, approximately horizontal rest position in the position of the longitudinal slide 80 according to FIG. 1, and only then release the dancer wings 132 upwards when the rollers 133 have passed the dancer rocker bearings 134 when the longitudinal slide 80 is moved from the position shown in FIG. 1 to the position shown in FIG. 2.
  • the end position shown in FIG. 1 and defined by the limit switch E4 is assigned two second dancer arms 142 with a second dancer roller 140, with dancer arm bearings 144 with a rotary potentiometer 145 being provided on the longitudinal members 78 and the longitudinal carriage 80 for the second dancer arms 142 having a second pair of rollers 143 for holding down the second dancer arms in the same manner as the first pair of rollers 133 when the longitudinal slide 80 releases the first dancer arms 132.
  • the function of the dancer roller 140 is the same as that of the dancer roller 130, the latter of which can only be effective when the limit switch E3 is actuated, while the second dancer roller 140 can only be effective when the limit switch E4 is actuated.
  • each side i. H. for each of the side members, four castors 150.
  • FIG. 5 shows that the deflecting roller 122 is supported on both sides in articulated rockers 160, which tend to buckle under the action of tension springs 162 and are fastened to a common shaft 164.
  • a motor M4 is used to drive this shaft.
  • the deflection roller 122 Under the action of the tension springs 162, the deflection roller 122, with its core 122a exposed in the end regions, always bears against stationary guide curves 166 which determine the path of movement of the deflection roller 122.
  • FIG. 5 shows the deflecting roller 122 with the articulated rockers 160 with solid lines in the working position, however, dash-dotted lines in the inactive inoperative position (on the right in FIG. 5).
  • FIGS. 5 and 6 finally show a scanning device 170 for the one longitudinal edge 56a of the web 56.
  • This scanning device has light barriers L3A and L3B which are arranged one above the other in the direction of travel of the web, but offset transversely with respect to one another, to which a common reflector L3C is assigned and which control the motor M6 for adjusting the cross slide 74 such that the longitudinal edge 56a between the two light barriers L3A and L3B runs.
  • Carriers 180, 182 and 184 shown in FIG. 5 for the various elements for holding the deflection roller 122 and the scanning device 170 are all attached to the laying carriage frame 18.
  • two limit switches E1 and E2 were mounted on the carrier 180, one of which is actuated by one of the articulated rockers 160 in the working position (E1) and in the rest position (E2).
  • the light barrier L1 If the light barrier L1 responds, it starts a second timer T2, the time interval Z2 of which is dimensioned such that the beginning of the web reaches the level of the axis of the predetermined roller 30 and thus hangs to the right of the predetermined roller according to FIG. 1, and also that the one longitudinal edge the web 56 is detected by the scanner 170 (L3A and L3B) for edge control.
  • the timer T2 switches off the motor M2, starts a timer T3 and activates the edge control, the time interval Z3 defined by the timer T3 being dimensioned such that the supply roll 54 can be centered by the edge control, which then The case is when the longitudinal edge 56a lies between the light barriers L3A and L3B by actuating the motor M6, as shown in FIG. 6.
  • the timer T3 switches on the motors M2 and M4, so that the supply roller 54 rotates again and the deflecting roller 122 is pivoted out of its rest position into its left-hand working position according to FIG.
  • One of the rocker arms 160 actuates the limit switch E1, by means of which the motor M4 is switched off again.
  • the limit switch E1 Characterized in that the supply roll of goods unwraps during the pivoting of the deflection roller 122 into its working position, a longitudinal tension cannot occur in the web, although the specification roller 30 is stationary. This only begins to turn when the limit switch E1 has been actuated, since this opens the clutch K1, the clutch K2 closes and the motor M1 is switched on. Both the supply roll 54 and the specification roller 30 then rotate.
  • the limit switch E1 also switches on the motor M3, which moves the longitudinal slide 80 out of its one end position shown in FIG. 1 towards the second end position, which is dash-dotted in FIG. 1 and shown in solid lines in FIG. 2.
  • the light barrier L2 starts a timer T4, the time interval Z4 defined by this timer being dimensioned such that the The beginning of the web travels the distance from the light barrier L2 to below the terminal strip 60.
  • the timer T4 switches off the motors M1 and M2 and actuates the motor M5 for the clamping bar 60, so that it holds the web of material when the longitudinal slide 80 releases the first dancer wings 132.
  • the light barrier L2 could also be arranged in the area of the terminal strip 60 or in the direction of travel of the material web, in order to be able to dispense with the fourth timer T4.
  • the fabric planter is now ready to lay and can e.g. B. begin with the laying out of the web that the terminal block 60 is opened and the drive motor 22 and the motor M2 are switched on by a start switch, not shown, the laying carriage 16 according to FIGS. 1 and 2 then moving from right to left .
  • a DC brake geared motor with a DC brake for the motor M1 a DC permanent geared motor with tachometer generator and controller for regulating the motor speed for the motor M2 and Three-phase brake geared motors for the motors M3, M4 and M5.
  • the web 56 is to be designed in pairs, after reaching the left end position of the laying carriage 16 according to FIGS. 1 and 2, the web is held by the terminal strip 60 and by a conventional cutting device, not shown, integrated in the laying unit 52, in the direction perpendicular to the plane of the drawing Figures 1 and 2 cut off. Then, while the laying carriage 16 moves back from its left to its right end position along the table 10, by actuating the switch D2 "automatic threading out", the web 56 is rewound after opening the terminal strip 60 and is thereby withdrawn from the laying unit and all other parts of the laying system.
  • the circuit is advantageously configured so that when the motor winds back, the motor M2 is switched off as soon as the front edge of the web 56 has passed the light barrier L1.
  • the upper part of the laying carriage 70 is then rotated through 180 ° into its position shown in FIG. 3, in which the supply roll 54 and longitudinal slide 80 lie over the specification roller 30 and the laying unit 52 located, ie back in their threading position. Then the switch D1 is used to automatically thread the web into the laying system.
  • the switch D3 "rewind" is actuated; the laying carriage 16 then moves from left to right, and the web is rewound onto the supply roll 54 by regulating the longitudinal web train by the dancer roller that is in operation.
  • the supply roll 54 could also be driven by a shaft carrying it, or the web 56 could be pulled off the supply roll 54 by hand for the purpose of threading.
  • one or more dancer rolls could also be provided between the upper section of the laying carriage and the specification roller 30.
  • the timer T3 could also be saved if the completion of the centering of the one longitudinal web edge is reported by the edge control, for example by querying the light barriers L3A and L3B (one free, one covered), whereupon the motor M2 is switched on and the deflection roller 122 retracted becomes.
  • the motor M6 could also be queried for standstill after switching on the edge control.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Replacement Of Web Rolls (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (21)

1. Machine à déposer du tissu, comportant un chariot de dépose (16) qu'un moteur peut déplacer le long d'une surface de soutien, qui presente des galets de roulement (20) et qui comprend une partie supérieure (70) du chariot de dépose qui est disposée au-dessus du bâti (18) du chariot de dépose, qui, au moyen de mécanismes d'entraînement (M6), peut coulisser par rapport à ce bâti, transversalement par rapport à une direction de dépose et peut tourner autour d'un axe vertical de rotation (67), comportant aussi un mécanisme formant palier, monté sur la partie supérieure du chariot de dépose, pour un rouleau de stockage (54) de la pièce de tissu, comportant aussi un mécanisme d'entraînement (M2, 90) pour dérouler le rouleau de stockage, comportant aussi un rouleau débiteur (30) qui peut tourillonner sur le bâti (18) du chariot de dépose au moyen d'un axe parallèle au rouleau de stockage (54) et qui peut être entraîné en fonction de la vitesse d'avance du chariot de dépose (16), et comportant aussi un groupe de dépose (52), monté sur le bâti (18) du chariot de dépose, pour changer la direction de la pièce de tissu (56) et couper cette pièce, caractérisée en ce que la partie supérieure (70) du chariot de dépose possède un traîneau (80) qui porte le mécanisme formant palier pour le rouleau de stockage (54); en ce que, sur le chariot (80), en-dessous du rouleau de stockage (54), est prévu, pour la pièce de tissu (56) à dérouler, au moins un élément de guidage (110 ou 116) qui est dirigé à peu près parallèlement à l'axe (106) du rouleau de stockage et qui est conçu de façon telle que, indépendamment du sens de déroulement du rouleau de stockage
(54), la pièce de tissu vient toujours à peu près pendre de ce rouleau au même endroit du traîneau (80); et en ce que le traîneau (80) peut coulisser, en particulier par motorisation, parallèlement à la direction de dépose pour passer d'une première position en une seconde position et inversement, étant précisé que, aussi bien dans la première position que, après une rotation de 180°, dans la seconde position, le traîneau est positionné de façon telle qu'un début de la pièce de tissu qui pend du rouleau de stockage (54) parvienne dans la zone du rouleau débiteur (30).
2. Machine à déposer du tissu selon la revendication 1, caractérisée en ce qu'entre le rouleau de stockage (54) et le rouleau débiteur
(30) est prévu au moins un rouleau danseur (130, 140).
3. Machine à déposer du tissu selon la revendication 2, caractérisée en ce qu'à chacune des deux positions du traîneau correspond un rouleau danseur (130, 140) qui sert à réguler le mécanisme de l'entraînement (M2) et qui, dans l'autre position respective du traîneau, se trouve dans un état inactif.
4. Machine à déposer du tissu selon l'une des revendications 1 à 3, caractérisée en ce que, dans la position d'enfilage, le début, qui pend, de la pièce de tissu vient pendre derrière le rouleau débiteur (30); et en ce qu'il est prévu un rouleau (122) de renvoi de la pièce de tissu qui peut passer, en passant par-dessus le rouleau débiteur, d'une position de repos, inactive, en une position de travail et grâce auquel la pièce de tissu (56) peut être amenée à s'enrouler partiellement autour du rouleau débiteur.
5. Machine à déposer du tissu selon l'une des revendications 1 à 4, caractérisée en ce que, dans la position d'enfilage, le rouleau de stockage (54) se trouve à peu près au-dessus du rouleau débiteur (30); et en ce que, dans l'autre position du traîneau, la pièce de tissu (56) va du rouleau de stockage (54) au rouleau débiteur (30) en passant par le rouleau danseur (130, 140) qui est chaque fois actif.
6. Machine à dérouler du tissu selon une ou plusieurs des revendications précédentes, caractérisée en ce que le mécanisme formant palier (98) présente, pour un axe (106) du rouleau de stockage, un guidage incliné, par rapport à l'horizontale, en direction d'un rouleau d'entraînement (90); et en ce que le rouleau d'entraînement (90) peut s'appuyer contre la périphérie du rouleau de stockage (54) et être entraîné par le mécanisme d'entraînement (M2, 92, 94, 96).
7. Machine pour déposer du tissu selon une ou plusieurs des revendications précédentes, caractérisée par un mécanisme motorisé (100, 102, 104, M7) pour le réglage de l'inclinaison du guidage (98) du rouleau de stockage.
8. Machine à déposer du tissu selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'en-dessous du rouleau de stockage (54) et au-dessus du rouleau débiteur (30) est prévu un premier mécanisme (L1) de détection du début de la pièce de tissu pour commuter le mécanisme d'entraînement (M2) pour le déroulement du rouleau de stockage (54).
9. Machine à déposer du tissu selon une ou plusieurs des revendications précédentes, caractérisée en ce que la partie supérieure (70) du chariot de dépose peut coulisser par rapport au bâti (18) du chariot de dépose, transversalement par rapport aux directions d'avance de ce chariot, au moyen d'un moteur (M6) de déplacement transversal; et en ce qu'au-dessus du rouleau débiteur (30) est prévu, pour l'une des lisières (56a) de la pièce de tissu, un second mécanisme de détection (170) qui pilote le moteur (M6) de déplacement transversal.
10. Machine à déposer du tissu selon une ou plusieurs des revendications précédentes, caractérisée en ce que le rouleau débiteur (30) peut être désaccouplé d'avec les galets de roulement (20) du chariot de dépose, au moyen d'un premier accouplement (K1), et peut être entraîné par un moteur auxiliaire (M1) au moyen d'un second accouplement (K2).
11. Machine à déposer du tissu selon les revendications 4 et 10, caractérisée par un premier contacteur de fin de course (E1), correspondant à la position de travail du rouleau de renvoi (122), pour mettre en circuit le moteur auxiliaire (M1).
12. Machine à déposer du tissu selon la revendication 11, caractérisée par un moteur (M3) d'entraînement du traîneau qui peut être mis en circuit par le premier contacteur de fin de course (E1) pour faire coulisser le traîneau (80) pour passer dans la position d'enfilage dans l'autre position du traîneau.
13. Machine à déposer du tissu selon la revendication 11 ou 12, caractérisée par un troisième mécanisme (L2) de détection du début de la pièce de tissu, qui est disposé dans la zone du groupe de dépose (52) et qui est prévu pour ouvrir le second accouplement (K2) et pour mettre hors circuit le moteur auxiliaire (M1
14. Machine à déposer du tissu selon la revendication 13, caractérisée en ce que le premier accouplement (K1) peut être engagé par le troisième mécanisme de détection (L2).
15. Machine à déposer du tissu selon la revendication 13 ou 14, caractérisée en ce que le mécanisme d'entraînement (M2, 92, 94, 96) prévu pour dérouler le rouleau de stockage (54) peut être mis hors circuit par le troisième mécanisme de détection (L2).
16. Machine à déposer du tissu selon une ou plusieurs des revendications 13 à 15, caractérisée en ce que dans le groupe de dépose (52) est prévu un mécanisme (M5, 62, 60) de bridagede la pièce de tissu (56), qui peut être mis en circuit par le troisième mécanisme de détection (L2).
17. Machine à déposer du tissu selon la revendication 8, caractérisée par un élément temporisé (T1) qui, lors de la mise en circuit du mécanisme d'entraînement (M2, 92, 94, 96) prévu pour dérouler le rouleau de stockage (54), peut être mis en circuit pour valider le premier mécanisme de détection (L1).
18. Machine à déposer du tissu selon une ou plusieurs des revendications précédentes, caractérisée en ce que les rouleaux danseurs (130, 140) ont leur portée sur des supports danseurs (132,142), qui sont rappelés par un ressort en direction de la pièce de tissu (56); et en ce que, dans chacune des deux positions du traîneau, les supports danseurs de l'un des rouleaux danseurs sont maintenus vers le bas par le traîneau (80).
19. Machine à déposer du tissu selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que, dans ses deux positions, le traîneau (80) est disposé, au moins approximativement, symétriquement par rapport à l'axe vertical de rotation de la partie supérieure (70) du chariot de dépose.
EP85104069A 1984-04-13 1985-04-03 Machine à déposer du tissu Expired EP0158281B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3413985 1984-04-13
DE3413985 1984-04-13

Publications (3)

Publication Number Publication Date
EP0158281A2 EP0158281A2 (fr) 1985-10-16
EP0158281A3 EP0158281A3 (en) 1986-08-06
EP0158281B1 true EP0158281B1 (fr) 1988-07-20

Family

ID=6233499

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104069A Expired EP0158281B1 (fr) 1984-04-13 1985-04-03 Machine à déposer du tissu

Country Status (5)

Country Link
US (1) US4575065A (fr)
EP (1) EP0158281B1 (fr)
JP (1) JPS60242176A (fr)
DE (1) DE3563841D1 (fr)
ES (1) ES8607174A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211679A1 (fr) * 1985-08-09 1987-02-25 Keiko Tagawa Machine pour déployer des étoffes enroulées
EP0380064A2 (fr) * 1989-01-24 1990-08-01 Angel Balsells Ventura Machine pour détacher un ruban textile d'une bobine

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Publication number Priority date Publication date Assignee Title
FR2579962B1 (fr) * 1985-04-04 1987-07-03 Lectra Systemes Sa
US4758960A (en) * 1986-05-30 1988-07-19 Krauss Und Reichert Gmbh & Co. Kg Spezialmaschinenfabrik Method of cutting out faultless pattern pieces
DE3629004A1 (de) * 1986-08-27 1988-03-10 Agie Ag Ind Elektronik Stromzufuehrung fuer eine drahtelektrode einer elektroerosionsmaschine
US4728089A (en) * 1986-08-28 1988-03-01 Eastman Machine Company Cloth spreading apparatus
US4990215A (en) * 1988-12-02 1991-02-05 Minnesota Mining And Manufacturing Company Web-aligning apparatus
US5087318A (en) * 1988-12-02 1992-02-11 Minnesota Mining And Manufacturing Company Web-aligning apparatus
DE59406685D1 (de) * 1994-09-05 1998-09-17 Bullmer Spezialmaschinen Gmbh Verfahren und Vorrichtung zum Legen von Stoff
DE10060227A1 (de) * 2000-12-04 2002-06-13 Truetzschler Gmbh & Co Kg Vorrichtung am Ausgang einer Strecke zur Erfassung des Fasergutes

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US2980421A (en) * 1957-03-20 1961-04-18 Cutting Room Appliances Corp Turntable spreading machines
DE1239655B (de) * 1960-05-20 1967-05-03 Cutting Room Appliances Corp Stofflegemaschine zum lagenweisen Ausbreiten von Stoffbahnen
US3941366A (en) * 1974-01-24 1976-03-02 Cutting Room Appliances Corporation Cloth laying carriage for one way operation having cloth clamping cutting box
IT1096535B (it) * 1978-06-09 1985-08-26 Ima Spa Apparecchiatura per la stesura di tessuti in strati sovrapposti su banchi,per industrie confezionatrici di indumenti
US4193589A (en) * 1978-08-02 1980-03-18 Cutters Exchange, Inc. Turntable for cloth spreading machine
DE2852797C2 (de) * 1978-12-06 1982-08-05 G. O. Stumpf GmbH & Co KG, 7421 Mehrstetten Stofflegemaschine
JPS5838656B2 (ja) * 1979-06-22 1983-08-24 中央発條株式会社 耐熱性クツシヨンの成形方法及び耐熱性クツシヨン
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DE3133149C2 (de) * 1981-08-21 1983-11-10 G. O. Stumpf GmbH & Co KG, 7421 Mehrstetten Legemaschine
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US4519595A (en) * 1984-07-10 1985-05-28 N.C.A. Co., Ltd. Apparatus for unwinding fabric from a roll

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211679A1 (fr) * 1985-08-09 1987-02-25 Keiko Tagawa Machine pour déployer des étoffes enroulées
EP0380064A2 (fr) * 1989-01-24 1990-08-01 Angel Balsells Ventura Machine pour détacher un ruban textile d'une bobine
EP0380064A3 (en) * 1989-01-24 1990-10-10 Angel Balsells Ventura Improvements in machines for drawing a textile web out of a roll containing the same

Also Published As

Publication number Publication date
EP0158281A2 (fr) 1985-10-16
EP0158281A3 (en) 1986-08-06
ES8607174A1 (es) 1986-06-16
US4575065A (en) 1986-03-11
DE3563841D1 (en) 1988-08-25
JPS60242176A (ja) 1985-12-02
ES542209A0 (es) 1986-06-16

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