MXPA01002473A - Strand or lamella feeding system - Google Patents

Abstract

The invention relates to a device for feeding harness elements into a separating station of a draw-in machine, wherein harness elements such as a strand or a lamella can be individually separated from a stack in a separation station regardless of the size of the stack and regardless of the possible existence of a pressure element exerting pressure on said stack. To this end, the device comprises a feed rail on which the harness elements can be mounted and the harness elements are fitted with guide elements, e.g. guide holes serving to encompass at least one of the guide rails (31, 32, 131). The at least one guide rail (31, 32, 131) is inclined in relation to a horizontal line, whereby a gravitational force is exerted upon the harness elements.

Description

The invention relates to a device for feeding harness elements, in particular healds or warpers, for their subsequent separation in a separation station of a drawing or drawing machine, the device has at least one feed bar, wherein the harness elements, such as heddles or warpers, can be arranged, which, in this case, are coupled with the guide elements, such as, for example, guide loops, around at least one feed bar. To prepare a fabric, the harness elements, such as heddles and warpers, must be removed from the warp threads, by means of a warp stretching machine. This is carried out, as a rule, by feeding a stack of respective harness elements to a separation station. The separation stations of this type for hedges or warping machines are already known. Although the hedge separation stations differ, as a rule, from those used for warping machines in their design, they have in common the fact that in each case they extract a thread element, specifically the main element in each case, from the REF pile. . DO NOT. 127667 harness elements. A transport means then additionally transports the individual yarn element to another location in the warp stretching machine, where the harness is placed for a warp. In order to ensure that a warp stretching machine operates perfectly, it is therefore important that the harness elements are individually separated from the corresponding stack reliably and at the right time by the respective separation station and available for further transport. Within the scope of the present invention, therefore, it will be apparent that reliable reasons for the unsatisfactory operation of the separation stations will be found in the means for feeding the separation stations. Devices for feeding healds to a separation station are already known, where the heddles are guided on a horizontally oriented feed bar. To generate a pressure force in the separation station which is advantageous for reliably collecting the individual healds, in the known feeding device, for example from WO 92/05303, a pneumatically operated presser presses against the stack of healds. Since the pneumatically operated presser is completely -K_. -jg.- i essential in this device, the design is, on the one hand, comparatively complicated. It is clear, on the other hand that, despite the presser, the operating reliability of the feeding device is not completely satisfactory. A disadvantage of the devices already known for the supply of warping machines is that, similarly, there is no constant pressure force that prevails in the warpers at the separation point. Therefore, when a stack of warping machines is operated through a separation station, there is no constant condition for separating the main warpers in each case. This may be the cause of the malfunction in the automatic separation of the warpers. The object on which the invention is based is, therefore, to provide devices for the feeding of harness elements, either heddlers or warpers, in a separation station, where the operation reliability is improved, compared with the corresponding devices and known. In a device of the type mentioned in the introduction, this object is achieved in that at least one feed bar of the device has an inclination relative to a horizontal, with the Í ,, _ i, & ^ _¡ > . ^ -? .-? - i, - - »;» -,.,.,,.? h,.-fc.it. ? ? ? The result is that a downward inclining force acts on the harness elements which are placed with their guide loops preferably directly on the feed bar, as mentioned in the combination of the features of claim 1. A major advantage of this solution is that, by virtue of the inclination of the bar, a downward inclining force of the harness elements placed on the feed bar is generated and can be used to bring the harness elements in the direction of the separation station and to press the elements of harness in the separation station. It is therefore possible, irrespective of the size of the harness element stack, to cause relatively uniform conditions with respect to the harness elements in the separation station. This contributes to achieve a high degree of reliable operation in the individual separation of the harness elements. It has proven advantageous, particularly in relation to heald separation, if the slope or inclination of the bar in the direction of the separation station corresponds approximately to the coefficient of sliding or static friction between the feed bar and the heddles placed in the bar. Can Therefore, a pressure force essentially independent of the weight of the pile of healds is generated to press in the separation station. To ensure this, it is preferable if the angle of inclination of the bar deviates at most 30%, particularly preferably at most 20%, from the angle of inclination where an equilibrium prevails between the weight force of the pile of healds and the The static or sliding friction force that is established between the healds and the guide bar respectively during the separation process of the healds feeding. This condition can be expressed as the following formula: Fr = Fn * μc, where: Fr = static friction force μc = Coefficient of static friction between the bars and the healds, Fn = the component of the weight force FG that is oriented parallel to a perpendicular to the oblique plane, with Fn = Fc * thing, ya = inclination of the oblique plane in relation to the horizontal. In a further advantageous refinement according to the invention, the device has a slider which is processed against the pile of healds. Further, if the feed bar is provided with the above-described angle of inclination where an equilibrium prevails at least approximately between the static or sliding friction force and the downward inclination force, the heddles begin to occur with a pressing force. essentially constant in the separation station. This pressure force arises from the weight force of the slide or other pressure element and is independent of the weight of the pile of healds and therefore the number of healds. Preferred refinements of the invention can be obtained from the dependent claims. The invention is explained in more detail with reference to exemplary embodiments diagrammatically illustrated in the figures in which: Figure 1 shows a perspective view of a warp stretching machine according to CH 682, 577; Figure 2 shows an example of a stretching module of a warp stretching machine; Figure 3a shows a side view of a feeding device according to the invention for heddles; Figure 3b shows the feeding device of Figure 3a with a trapezoidal pile of healds; Figure 4 shows a cross-sectional illustration of an example of two power bars of the device of Figure 3a; Figure 5 shows a cross-sectional illustration of a further example of two feed rods of the device of Figure 3a; Figure 6 shows a feeding device according to the invention for the warpers. Figure 1 shows a warp stretching machine. This consists of a basic support 1 and several sub-assemblies that are placed last and where each one forms a functional module. The warp beam car 2 with a warp beam 3 placed on it can be seen in front on the basic support 1. The warp beam car 3 also contains a lifting device 4 for supporting a frame 5 where the KF warp threads are stretched. For stretching, the warp beam car 2, together with the warp beam 3 of the lifting device 4, moves to the so-called mounting side of the stretching machine, and the frame 5 is raised The ti,? - bi.t-MÍ. . ascending by the lifting device 4 and suspended where it then assumes the illustrated position. The frame 5 and the warp beam 3 move in the longitudinal direction of the basic support 1. During this movement, the warp yarns KF are guided past a separation phase of yarn 6 and at the same time separate and divide. After being divided, the warp yarns are cut and provided to a stretching needle 7 which forms an integral part of the so-called stretching module. Next to the drawing needle 7 can be seen a unit of video screen 8 belonging to an operation station and used to indicate the functions and malfunction of the machine and also for data entry. The operating station is part of the so-called programming module and also includes an input phase for the manual input of the particular functions and sequences. The drawing machine is controlled by means of a control module comprising a control computer and placed in a control box 9. This control computer preferably comprises, for each functional module, an individual module computer that is controlled and monitored by the control computer. The modules _aJLy.fc.JL.l-ii *** & - • * & The main parts of a drawing machine also include, in addition to the aforementioned modules, the heald module, warp module and loom comb module. The thread separation phase 6, which provides the stretching needle 7 with the yarns of the warp KF to be stretched, and the trajectory of the movement of the stretching needle 7, which runs vertically in relation to the plane of the warp yarns KF, defines a plane that separates the assembly side already mentioned from the so-called disassembly side of the drawing machine. On the assembly side, the warp yarns and the individual harness elements, ie the hedges or warpers, where the warp threads will be stretched, are fed. On the dismantling side, the so-called threads (heddles, warping machines and loom combs), together with the warp threads for drawing, can be removed. Directly behind the plane of the warp threads, the LA warp stop motion warping machines are placed, behind these, are the hedges, and the loom comb is even behind it. The warpers are stacked in manual tanks and transferred to a feeding device according to the invention, which is described in detail below. After , "-_...-.- ^ v, .- > ..-, ..... JL stretch on a warp thread, the warpers reach the disassembly side of the bars 12 that carry the warpers. The healds Ll are aligned and automatically moved to a separation station in an additional feeding device according to the invention which will also be explained in detail later on. In this separation station, the heddles are carried individually in their stretched position and, after that the warp threads have been stretched, they are distributed to the corresponding heddle trees 14 on the dismounting side. The loom comb moves equally in the stages passing the drawing needle, the nick of the comb of corresponding loom is opened for stretching. After the drawing is presented, the loom comb WB (partially illustrated on the right beside the heddle trees 14) is also on the disassembly side. The so-called thread car 15 is provided on the dismounting side. The latter, together with the transport members secured thereto, specifically the bars 12 carrying the warpers, the hedges trees 14 and the handle for the comb spin, it is pushed into the basic support as in the ^ - ° - ^ a * '* > ^ a * '* illustrated position and, after the stretching takes place, it carries the threads together with the warp threads. The functions described are distributed to a plurality of modules that constitute virtually autonomous machines or systems that are controlled by the common control computer. The main modules of the stretching machine which have already been mentioned are preferably of modular design and comprise the sub-modules. This modular design is described in Swiss Patent No. CH 679,871, which is hereby expressly incorporated by reference. Figure 1 will be understood to be illustrative completely: the warp stretching machine, where the device according to the invention will be installed to receive, retain and feed the harness elements, for example as a module, can differ considerably, since either in full or in the remaining details, of the machine illustrated in Figure 1. As can be seen from Figure 2, the drawing needle 7, which forms a main integral part of the stretching module, comprises a fastening band 16 and an securing fastener. 17 led by the last one. The drawing needle 7 is guided in the immediate direction (arrow P) in a guide as channel 18 extending from the frame 5 in a rectilinear direction to the arcuate end part 19. The guide 18 passing through the machine of stretched and, in the region of the harness elements (LA warpers, healds Ll) and the spinning comb WB, is interrupted in each case, to enable the feeding of the harness elements to the stretching position and, after stretching, transport them to the transfer (arrow S) to the transport members (bars carrying the warpers 12 and hedges 14) and also stretch the warp threads in the WB loom comb (also called cane). The feeding of the LA warpers and of the healds Ll to their drawing position and the additional transport of them until the transfer to the respective transport members is carried out by means of a LD submodule of distribution of LD warping devices and an HD submodule of distribution of healds respectively. To ensure that both submodules operate reliably, it is necessary that the respective harness elements are fed individually and at the correct time, the present invention contributes to this. The two LD and HD submodules perform basically the same functions, in that they receive the harness elements offered sequentially or in the stages by then, transport them to the stretch point and, after the warp stretch, transport them additionally to the transfer point, where the transfer is carried out to the transport members, ie the bars carrying the warpers 12 or the hedges trees 14. Figure 3a, then, shows a device for feeding the healds Ll to the separation station 30 This device has a top and bottom feed bar 31, 32, for guiding the healds. In addition to the two feed rods 31, 32, the device is provided with a third bar in the form of a guide bar 34 for a slide 35, this guide bar is located below the lower feed bar 31. In an initial state , the three bars are oriented essentially parallel to each other. In this case, each of the three bars has the same angle of inclination (a) which, in the exemplary embodiment illustrated, is 10 °. As a result of the inclination, the two feed rods 31, 32 are oriented in such a manner that they slope downward from an insertion end 36 towards the separation station 30 which is illustrated highly diagrammatically.

The feed rods 31, 32 thus maintain an inclination up to or in the separation station 30. A coupling element 37, 38 is in each case connected to the upper insertion ends 36 of the two feed rods 31, 32, for that manual deposits (not shown) for healds can reliably be secured. The coupling elements 37, 38 thus make it possible to transfer a pile of healds from a manual reservoir to the feed rods 31, 32. A retainer 39 is mounted in the region of the lower separation end of the upper feed bar 32 which , on the one hand, prevents the heddles 33 from falling under the feed bar 32. On the other hand, the retainer 39 assists in positioning the first heddle in each case in the separation station 30. The distance A between the two bars of feed 31, 32, which run parallel to each other in the free state of the heald, is selected in such a way that the heddles, introduced in each case with their upper and lower guide loops 43, 44 in the two feed rods 31, 32 , they can move essentially in the bars, without being trapped or blocked (see Figures 4 and 5). To make this possible, the feed rods 31, 32 are at a distance from each other such that the heddles Í?,? &.? * JLITÁt¡k * vertical in relation to the direction of the transfer, indicated by arrow 45, of the healds in the feeding bars. The direction of the transfer runs parallel to the longitudinal axes of the bars. As illustrated in Figure 3a, the two feed rods 31, 32 and the guide bar 34 are fastened to a support 46 which is connected to the warp stretching machine. In this case, the lower feed bar 32 is mounted on the support rotatably on a pivot axis 40 oriented vertically relative to the drawing plane. The axis of rotation 40 is located between the guide bar and the feed bar 31 in the region of the lower end of the feed bar 31 and therefore also in the region of the separation station 30. The feed bar 31 it provides with a compression spring, not illustrated in detail, which acts against the weight force G of the feed bar. As seen from the axis of rotation and the longitudinal direction of the feed bar, the spring engages behind the center of gravity of the feed bar 31. As a result, a lever arm Di with which the force of weight G of the feed bar 31 rotates on the -.4 -í, í ..iü.í .: i. -? *** é. ~ ^ m. -.- a, ---, -a,. «. . »- -JM-faJ J .; axis of rotation 40, is lower than the lever arm D2, with which the spring force F generates a moment with respect to the axis of rotation 40. The spring force FF is, in this case, dimensioned in such a way that a Moment equilibrium with respect to the axis of rotation 40 prevails at least approximately by virtue of the force of weight G and the spring force FF. In other words, the equation FG * D: = FF * D2 is real. It will, of course, be possible for the force neutralizing the force of weight to be generated in some way other than by means of the compression spring described. What can be achieved by this measure is that the inclination of the lower feed bar 31 is adapted to the orientation of the pile of healds. Particularly where the heddles 33 that have been used more than once are involved, it is quite possible that the heddles 33 may deform. The result of this may be that the heddles 33 of the stack are not placed orthogonally, but obliquely, relative to the upper feed bar 31, as is the case, in the pile of heddles in Figure 3b, with respect to to the heels 33 of the pile that are in the back part in the direction of transfer. The corresponding healds of the pile therefore tend to be retained with one of their guide loops on one of the feed rods, with the result that the pressure force necessary to transport these healds on the feed rods 31, 32 is increased. The above described suspension of the feed bar 31, then, leads to a situation where the heddles running obliquely with respect to the upper feed bar 32 lift the feed bar 31 with its lower guide loops and rotate through a certain angle of rotation on the axis of rotation 40. An angle of inclination a., Which deviates from the angle a is thus established in the feed bar 31. The force required for this purpose is relatively slight due to the essentially "floating" suspension of the power bar.

As a result, the two feed rods are oriented parallel to each other only when there is no lug 33 placed on the feed rods 31, 32 or when all the healds of a stack are oriented orthogonally to the two feed rods 31, 32. The suspension explained above of at least one of the two feed rods 31, 32 neutralizes a retention of the heddles 33 in the rods and contributes to ensuring that the pressing force of the main heap of the heap against the station of separation remains approximately constant in each case. HE He has shown that an increase in the inclination of up to approximately 15 ° by 1 m in length of the pile of healds is caused by means of this suspension. As shown in Figure 3a and 3b, the slide 35 is movably positioned on the guide bar 34, so that the slide is supported on the guide bar 34 by means of the rolling supports, specifically three rollers 47. The slide 35 has a first C-shaped clamp which engages around the guide bar 34 and guides the slide 33 in the guide bar. The slide 35 is pressed with a second clamp 49, projecting on an upper side 50 of the lower feed bar 31, against the heald of a pile of heddles that is at least in the direction of transport 45. The force of driving which is achieved by means of the slide 35, and where, moreover, it can be used as a pressing force pressing the first hedge in each case in the separation station 30, is derived essentially from the inclination of the two bars 32, 34, of the mass of the slide 35, of the mass of the pile of healds, of the friction between the heddles 33 and the feed rods 31, 32 and of the friction between the slide 35 and the guide bar 34. that, in the exemplary mode shown, the inclination and therefore also the The downward inclining force is substantially greater than that resulting from the rolling friction of the slide 35 and from the friction of the heddles 33 in the two feed rods 31, 32, a force is obtained in the direction of the transfer, which is used for carrying the healds 33. It has been shown that the shapes of the specific profile of the feed rods 31, 32 help to prevent blockage of the healds in the feed rods. Therefore, the profile L shown in Figures 4 and 5 has been shown to be favorable, specifically, regardless of whether the heddles shown in the figures are of type C or type J. As can be seen from these figures, in the bar upper feed 32 a vertical leg of a skewed profile of the profile L forms rising points, although, in the lower feed bar 31, the leg forms falling points. To obtain an edge as sharp as possible in the transition between the horizontal leg 51 and the vertical leg 52, it has been favorably tested if the horizontal leg 52 of the biased profile has a sheet metal strip 53 that covers the skew rounded. It has been shown that this measure makes it possible to improve the guide property of li z s.

To separate a main stack, the latter is first drawn to the two feed rods 31, 32, so that the purpose of the slide 35 has to move back to the end of its guide bar 34. Since the guide bar is it projects, in the region of the introduction ends 36, beyond the two feed rods 31, 32 of essentially the same length, in this position the slide releases the lower feed bar 31 so that the heddles are pushed into it. After the healds has aligned with its upper loop 43 on the upper feed bar 32 and with its lower loop 44 on the lower feed bar, the heddles slide essentially automatically in the direction of the separation station 30 by virtue of a state of equilibrium that approximately prevails between the static friction force of the healds 33 on the bars 31, 32 and their own downward force of inclination. The slide 35 can subsequently be released, with the result that the latter is wound on the pile of heddles. As already described above, the pressure of the slider in the pile of healds produces a constant force that results in a constant pressure force essentially pressing the first heap of the stack in each case in the separation station, specifically independent of the number of healds in the pile. Figure 6, then, illustrates a device according to the invention for feeding and storing the warpers 133. The device has a feed bar 131 which is provided with a first and a second portion 140, 141. The two portions 140, 141 are inclined relative to a horizontal at different angles of inclination a 'and ß'. However, with the exception of transitions from one portion to the other, the inclination angles a ', ß' are constant. The portion 141 thus maintains its angle of inclination a 'up to the end of the feed bar 131 in the separation station 130. In the exemplary embodiment illustrated, the angle of inclination a' is approximately 20 ° and the angle of inclination ß 'is approximately 42 °. In the region of an upper end, the insertion end 136, is a third substantially horizontal portion 142 of the feed bar. A rotary bar 151 can be added with its free end 152 to this end of the feed bar 131. The other end of the rotary bar is secured in a rotary assembly 153, by means of which the bar Rotary 151 is rotatable in an essentially horizontal plane. Both the rotary bar 151 and the feed bar 131 are retained in a common support 146 which, in turn, can be mounted on a warp stretching machine. A first inlet 154 is placed in the region of a transition of the essentially horizontal portion 142 in the portion 141 having the greatest inclination. The entry lock 154 has a pneumatically actuatable clamping arm 155 which, in a first end position, is held in the feed bar 131 and, in a second end position, is positioned at a distance from the feed bar 131. In the In the first extreme position, the clamping arm therefore retains the warping devices, while, in its second extreme position, it allows to transport the warping devices further in the direction of the separation station 130. A second input securing 156 is provided in the region of transition from the portion 141 having the greater angle of inclination ß 'to the portion 140 having the smaller angle of inclination a'. A third inlet securement 157 is positioned in the region of the end of the feed bar that is located in the separation station. Both the second and the third inlet latch 156, 157 have a closure member that is comparable to the holding arm of the first inlet fastener and that can be placed in the two end positions. As in the case of the first input fastener 154, the respective closure members of the second and third input fasteners 156, 157, in their first end position, close the bar against a supply of the warping devices downstream of the respective input securing device, as seen in the transport direction. In other words, in this extreme position, the entry insurers retain the warping devices that are placed on the bar upstream of them, as seen in the transport direction. The inlet fasteners are designed in such a way that the closure members, in their first extreme position, in each case hold the feed bar 131, with the result that the latter can only be held by an inlet fastener. The feed bar is not directly attached to the support and is therefore held only by the input fasteners, specifically, depending on the interconnection status of the input fasteners, by one or more of the three input fasteners 154, 156, 157. The input fasteners are interconnected in such ~ _-. "Te ---. Á-.i¡JL. so that, even during operations on the interconnection, always at least one input fastener 154, 156, 157 holds the feed bar. A rotatable presser 158 likewise places in the same transverse strut of the support to which the rotary bar 151 is also held. In the exemplary embodiment illustrated, the presser 158 has a hydraulically activatable pressure cylinder which is activated by means of a central control of the stretching machine. Placed on the free end of the piston 159 of the presser 158 is the pressure element 160, by means of which the presser 158 is pressed against the last warper of a warp stack which is located downstream of the second input holder 156, as shown in FIG. see in the transport direction 145. Finally, the presser cylinder has a preferably inductive detector 161, by means of which the presence of the warping machines 133 and / or a specific size of a warp stack can be detected in the supply bar 131. Alternatively, it may also be provisioned for the detector to detect a specific position of the piston corresponding to a specific remaining number of warpers 133. When this position is reached, the detector transmits a signal to the control. -_- .. m ..- t - »- * -i-t-fr ..- i In additional alternative modes, a slide can also be provided, in a manner similar to that of the exemplary embodiment of Figure 3a, instead of the pneumatic presser. This slide can be guided on a separate guide bar and pressed only with its own weight against the stack of warpers. To achieve an essentially constant pressure force, it is preferable, in the present as well, if the downward inclining force resulting from the weight force of the slide as a total is equal to or greater than the friction forces between the slide and its bar. and between the warpers and the feed bar 131. In this case, the angle of inclination a 'of the first portion 140 of the feed bar is preferably selected in such a way that the downward inclining force of the warpers on the bar, resulting from the force of the weight, essentially corresponds to the static friction force between the metal warpers 133 and the metal feed bar 131. To ensure that a warp stretching machine operates essentially continuously and therefore independently of the continuation of a new stack of warping machines, the following procedure can be adopted in provision to the device of agreement t-t-t j.-t - t .-- afe ---- > . -v. --i - «i nriÉMrf, .. r,, -ftfr • -_ * &.« «^ -u-t. to the invention, shown in Figure 6, and in the storage of the warpers. Even while a stack of warpers that rests against the separation point in the separation station 130 is worked through, a new warp stack is aligned on the rotary bar 151 and ready to be transferred into the feed bar 131. by means of the rotary bar 151 rotated in the portion 142 of the feed bar, this stack of warping can then be transferred to the feed bar 131. Since the first input holder 145 is in its closed position at this time, The new warp stack is retained by this input fastener. At this time, the second inlet holder 156 is likewise closed and the third inlet holder 157 is open. The first inlet grip 154 opens when it is ensured that the second inlet grip 156 is fully closed. This is possible to feed the new warp stack before the second input fastener 156. Furthermore, during this procedure the presser 158 is pressed against the warp stack resting against the separation point. When a warper is removed from the warp stack, the presser 158 undergoes an advance corresponding approximately to the thickness of a warper. As soon as the detector 161 of the presser 158 responds, the detector transmits a signal to the control (not illustrated) of the drawing machine. The detector transmits this signal, for example, when the separation station 130 has worked essentially through the stack of warping machines hitherto located upstream of the separation point. By virtue of this detector signal, the third and first input fasteners 154, 157 are subsequently closed and the second input fastener 156 is open. Since the feed stack 131 has, upstream of the second input holder 156, an inclination by virtue of which the stack of warpers can move, solely by its own weight, on the bar 131 in the direction of transport, the new The warmer stack slides to the third inlet holder 157 and bears against the closed member of the latter. The warp stack, then, is located between the third and the second input fasteners 157, 156. The second input fastener 156 is substantially closed and the third and first input fasteners 157, 154 are open. The first and second input fasteners 154, 156 are thus again ready to receive from the rotary bar 151 a stack of additional warping devices which can be stored in the bar '9. rttÍ? I * fa¿aA'-i', j'itam ° - '^ - "" - * - »- - - ...-. * > --- • "-------- > - -» «---- *", - "- ^ * - ~ ..-» -, ".-Y." -i. In the meantime, the presser 158 is in the meantime moved back to the end of the warp stack which is then placed in front of the separation station 130. By means of a subsequent rotary movement in the The direction of the feed bar 131 and a feed in a sliding manner in the transport direction 145, the presser is carried to hold against the warp stack The presser is then pressed with a specific force against the warp stack. the force is dimensioned in such a way that the separation station 130 can reliably take the main warping machine in each case (and only this warping device) and additionally transport it, so that the main warping machine in each case remains with the same force against the separation station. while the entire warp pile is working through the press or, by virtue of their forward movement, always press with a constant force against the warp pile after each removal of a warper. Due to the inclination of the first portion 140 of the feed bar of approximately 20 °, the friction force between the warp stack and the feed bar can essentially be canceled, but at least greatly minimized, against the downward tilting force of the warp stack. This results, therefore, for each warp in the stack that is the first in each case, in the same pressing force that the warhead presses in the separation station 130. After each warp of the stack has been separated and the detector 161 responds again, the cycle described above starts from the beginning.

It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects or products to which it refers. Having described the invention as above, property is claimed as contained in the following:

Claims (18)

1. The device for feeding the harness elements, in particular healds or warping devices, for their subsequent separation in a separation station of a stretching machine, the device has at least one feeding bar, where the elements of harness, such as the threads or warping devices, which, in this case, are coupled with the guide elements, such as, for example, the guide loops, around at least one feed bar, characterized in that at least one bar The feed has an inclination in relation to the horizontal, with the result that a downward inclining force acts on the harness elements.

2. The device according to claim 1, characterized in that the feed bar has an angle of inclination (a, a ', ß') which is coordinated with a coefficient of static friction or sliding between the harness elements and the feed bar . .-á_i, __, - i -.- i. »..--- * .1.-.---» -.

3. The device according to claim 2, characterized in that the angle of inclination (a, a ', D') corresponds at least essentially the coefficient of static friction or sliding between the harness elements and the bar.

4. The device according to one or more of the preceding claims, characterized in that at least one feed bar is rotatably articulated on a rotation axis to vary the angle of inclination (a, a ', D').

5. The device according to claim 4, characterized in that a twist on the axis of rotation, acting by virtue of the weight force of the rotating articulated feed bar, is canceled at least partially, preferably completely, by a torsion that acts by virtue of a counterforce.

6. The device according to one or more of the preceding claims, characterized in that a second inclined feed bar is present, and where the heddles can be fed with a i-iL_¡ .--? i - u-. ^ &^^^ upper guide loop in the first and with a lower guide loop in the second feed bar.

7. The device according to one or more of the preceding claims, characterized in that each of the feed rods is provided with a coupling element, by means of which the harness elements can be stored in the respective feed bar.

8. The device according to one or more of the preceding claims, characterized in that a bar has a slide, by means of which a pressing force can be exerted on a stack 15 of harness elements, with the result that a Pressure force capable of being used to separate the harness element acts on a main harness element to be separated in each case.

9. The device according to claim 8, characterized in that the slide exerts a pressing force on the healds only by virtue of its weight force or part of its weight force. 25 - & * Í - «---- M ------- < --fc- . , -? ._,; ...., «^ __ t_. _--, ^. .. . _ -__- * -. --.-..- .. ~ -.fc - ^., .... > - -j - fc.J8.-l-.

10. The device according to one or both of the preceding claims 8 and 9, characterized in that the slide is guided on the bar by rolling supports.

11. The device according to one or more of the preceding claims, characterized in that a separation station is placed in the region of the lower end of the feed bar, the lower end is inclined relative to the horizontal.

12. The device according to one or more of the preceding claims, characterized in that the feed bar has an angle of inclination, by virtue of which a downward inclining force of the warpers placed on the bar differs in at least insignificantly from a force of friction between the feeding bar and the warping devices, so that a pressure element presses with its own weight in the warping devices pressed with an essentially constant pressure force in the warping machines, independent of the number of warping devices placed in the feeding bar. tj.- -, i - * - i .. -.-.---- -., > ^ - ^ - ^., 4.. . . . +. ~ , - ^ ..-.- ^ - ~ - ^ - fc ^ ~ - > «- ^^ --- fcAt ^

13. The device according to one or more of the preceding claims, characterized in that the feed bar has at least one interconnection input fastener provided with a closure member that is capable of being transferred in at least two extreme positions, and, in a first extreme position, a stack of warpers can be retained and stored in the feed bar and, in a second extreme position, the input holder releases the feed bar for transporting the warp stack.

14. The device according to claim 13, characterized by three interconnection input insurers, the interconnection states of the input insurers are coupled to each other by means of a central control.

15. The device according to one or more of the preceding claims, characterized in that at least one feed bar has the portions having different inclination angles.

16. The device according to claim 15, characterized in that, in relation to l-4.Ji-t.-t - fc * - «*. * • - - «" "fe -" - »» 1-, ----- a transport direction of the harness elements in the feed bar, the feed bar has a first portion of greater inclination, downstream from which a smaller inclination portion is located.

17. The device according to claim 16, characterized in that the feed bar has an angle of inclination in the range of 90 ° in the region of greater inclination < a < 15 ° and in the region of minor inclination an angle of inclination of 45 ° < a < 0o, preferably 30 ° < a = 10 °.

18. A warp stretching machine for the stretching of warp threads of the harness elements, characterized by a device according to any of the preceding claims 1 to 17. i ^^ i.-l.-t.-i.Í..t - t - L - t -..- | g¡rg (t-., - -, -.--- .. , -fe - * .- í