WO1990015179A1

WO1990015179A1 - Process and device for producing endless webs from a primary web

Info

Publication number: WO1990015179A1
Application number: PCT/EP1990/000871
Authority: WO
Inventors: Bertil Jacobsson
Original assignee: Iro-Calator Ab
Priority date: 1989-05-31
Filing date: 1990-05-31
Publication date: 1990-12-13
Also published as: AU5672590A

Abstract

In a process for producing a plurality of endless webs from a moving endless primary web of textile material, selected longitudinal sections of the web are continuously cut out and the alternate cut ends joined. The cutting out and alternate joining are carried out fully automatically in function of command signals which represent the cutting positions. The webs so obtained may differ in respect of quality criteria established by preliminary inspection and classification. The cutting out, removal and alternate joining is already carried out fully automatically in the testing machine. The testing machine advantageously comprises an automatic device (H) for cutting out longitudinal web sections which are classified on the inspection table (T), arranged between the inspection table (T) and the winding station (W), and an alternate joining device (S) for alternate joining of corresponding front and rear cut ends (TU, TV).

Description

Method for producing endless webs from a primary web and device for carrying out the method

description

The invention relates to a method of the type specified in the preamble of patent claim 1 and of patent claim 3, further to a testing machine for carrying out the method according to claim 4 and a device of the type specified in claim 21.

A test machine (type ASM) for woven goods is known from a brochure 50-CAL-03 / 86.12 from Calator, Boras, Sweden, with which the quality or quality differences of the web and its actual length are determined. The material web is conveyed over an illuminated inspection table, whereby the machine operator detects any defects in the goods. The goods defects are written down over the measured goods length and classified in their category. Based on the detected goods errors, corrective measures are taken retrospectively in the production process of the web or a log is attached to the wound web, which documents the quality, frequency and type of errors as well as the location of the errors within the length of the web. Since the testing machine processes the material web at a relatively high working speed, there is no possibility of eliminating errors as soon as they are detected or of dividing the material web into various endless individual webs. There is therefore an urgent need not to avoid the errors retrospectively in the production of the material web, but subsequently, before or during the further processing of the Would. There is also a permanent need to form an endless primary path into several endless paths, for example with regard to their quality, each of which is of a constant quality. The material web can contain quality, color, pattern, base material or the like. Longitudinal sections differing from one another. It may also be necessary to separate out marked longitudinal sections for examination or test purposes and to combine them in one or more tracks formed from these longitudinal sections.

However, a method and a device with which these requirements can be met with reasonable effort and in practice are currently not known.

The invention has for its object to provide a method and a machine or an apparatus with which several endless webs can be produced easily and quickly from an endless textile primary web. The course of the process should be so fast that the process can be carried out simultaneously with at least one further processing or treatment process for the primary web and / or the webs formed and does not necessarily have to be carried out as an independent process separate from other processes.

The object is achieved according to the invention with the features outlined in the characterizing part of patent claim 1.

In this fully automatic procedure, the primary path is only removed when the command signals are used to separate and connect alternately held up for short periods of time. This results in a large output on endless webs. As a result of the rapid process sequence, the method can preferably be combined with at least one further method which is carried out on the primary path and / or on the endless paths formed, without noticeably impairing the latter process. It is important here that when determining the separation points, which are necessary anyway, command signals are generated which initiate the separation and alternate connection.

In the method according to the independent claim 3, the rapid execution of the method in the testing machine is overlaid with the inspection method and classification of the primary web, so that the endless webs wound up in the testing machine can immediately be further processed or transported and are already available in the respective quality levels .

According to the independent claim 4, a testing machine is specified in which, in front of the winding station, the longitudinal sections are separated and connected in one go with the inspection and classification of the primary web. For this additional function, the testing machine requires only minor modifications such that the detaching device and the alternating connection device are incorporated downstream of the inspection table. This has the advantage that test machines that have already been in operation can subsequently be expanded accordingly, or that the concept of previously proven test machines need not be changed appreciably if they are to be removed simultaneously and mutually Connect should be used.

Finally, according to the independent claim 21, a device is provided which can be used as an independent structural unit if it is necessary to form at least two endless tracks from a primary track. The device can be used on its own to divide a wound primary web. However, it can also be incorporated into the process sequence for other devices which process or treat the primary web or which process and treat the webs, because the removal and connection in the device can be carried out so quickly that it only negligibly affects other continuous or discontinuous processes . In summary, for the first time a possibility has been created that is tailored to the specific requirements of railway processing in the textile industry to create several single tracks that are then uniform or consistently the same in a train from a running primary track that contains different longitudinal sections due to production. These egg lanes can then be processed in a more targeted manner or be used more specifically by the consumer than the non-homogeneous primary lane.

The variant of the method according to claim 2 is advantageous because the primary path only has to be stopped during the cutting and the alternating connection of the separators, whereas during the rest of the time it runs with the path just formed, the separating ends of which have just been connected. The currently discontinued path remains as long. The embodiment of the testing machine according to claim 5 is also expedient because the components for forming endless webs from the primary web are integrated in the testing machine. This means that the continuous inspection of the primary path practically only needs to be interrupted briefly to separate and alternately connect.

Alternatively, the embodiment is expedient because the assembly can be removed from the testing machine and used in other methods, or B. can cooperate with other devices or machines in which there is a running primary path with different properties over its length.

The idea of claim 7 is also important because the own drives make it possible to stop the train that is not being driven. This principle can also be realized with a central drive and optionally operable clutches.

A structurally simple, functionally reliable embodiment that requires little installation space can be seen from claim 8. The primary web is cut off with the cross cutting device and a front and rear cutting end is formed. The holding devices, which can be moved alternately in the direction of web travel, serve to hold the respective rear separating end of a longitudinal section to be separated out. A rear and an associated front separating end, which is provided by the feed device, are positioned in the positioning device until the seam-forming device establishes a connection. The holding devices and the feeding device work the common positioning device until the seam forming device with a transverse seam eliminates the interruption in the path just formed. In the case of a primary web consisting of synthetic material, the seam-forming device can be a welding device. However, an adhesive device or a clamp device is conceivable, which establishes the cross connection with an adhesive or with connection clamps.

A particularly expedient embodiment proceeds from claim 9. The separating element separates quickly and cleanly even across large fabric widths. An Origa cylinder requires little installation space and can be adjusted to different widths of goods. The cutting disc is equipped with a drive which is expediently only to be activated for the cutting process. Scissors, knives or separation welding devices could also serve as the separating element.

A further embodiment emerges from claim 10. The holding profiles grip the web across the width of the goods at the rear dividing end and hold it as long as it is not running. Furthermore, the holding profiles serve to transfer the rear separating end into the positioning device and hold it there in the correct position, so that the associated front separating end of the primary track can be connected to the rear separating end. The holding devices are held in the frame housing, the primary track and the tracks running through the frame housing. In order to bring the rear separating ends into a position which is favorable for connection, the holding devices are tilted by 90 °, while the front separating end is moved laterally out of the running direction by the feed device is distracted.

After the separation, the clamping and conveying device ensures that the primary web is retightened until the front separating end reaches the positioning device.

According to claim 11, a rapid movement of the holding profiles and a secure clamping of the rear separating ends is ensured.

According to claim 12, the bracketing of the holding profiles over the width of the goods is improved for large widths of goods. If necessary, the holding profiles are curved towards the web in order to achieve a uniform clamping force across the width of the goods.

The structure of the embodiment according to claim 13 is simple because both holding devices are adjusted with the common actuating cylinder. However, it is also conceivable to assign a separate adjusting device to each holding device.

It is particularly simple to have the actuating cylinder engage the frame housing and to guide the frame housing in a straight line. The guides take up the weight of the components so that the actuating cylinder works sensitively, can be small and therefore takes up little space.

The aspect of claim 15 is also important because the holding device closer to the positioning device can be moved away from the path of movement of the other holding device to the positioning device with the vertical actuating cylinder and can then be adjusted into the working position when it holds the rear separating end held by it must feed.

In the embodiment according to claim 16, the tilting stop ensures that each holding device for transferring the rear separating end is tilted into a position which is favorable for connection when the holding device moves to the positioning device.

A further advantageous embodiment is set out in claim 17. The separating ends are held in place between the pressure bar and the counter holder during the seam formation.

The embodiment according to claim 18 is particularly important. A traversing sewing machine is capable, e.g. with a chain stitch or loop stitch seam, to quickly establish the cross connection, whereby the seam contained in the web is resilient during further processing and does not cause any faults.

The idea of claim 19 is also important in this context, because the cutting device eliminates any protruding part of the separating end or unclean separating end, which improves the quality of the seam formed.

With regard to the automatic execution of the method, the embodiment according to claim 20 is advantageous. In the testing machine, it is only necessary to select and determine the separation point. Since a drive is usually connected to a control device in such a testing machine, which determines the running speed and records the length of the primary path that has been run, the sequence control in the control device for which Expediently, a microprocessor is used, the primary web stops the primary web when the separation point is aligned with the transverse separation device, and initiates the individual steps required for separating, separating and alternately connecting the separators before the run of the primary web and the web just formed is continued. The machine operator who inspects the running primary path only has to enter the separation points. As an alteration to this, it is also possible to provide the primary web with markings or to set certain lengths, the command signals then being generated by a scanning device, by means of which the primary web is stopped, separated and connected to the respective web.

Embodiments of the invention are explained with reference to the drawing. Show it:

1 shows a schematic side view of a testing machine,

2 is a schematic view of a winding device,

3 shows a schematic detailed view of a device as can be used in FIGS. 1 and 2,

FIG. 4 shows a detail from FIG. 3 during the production of a cross connection, and 5 shows the device of FIGS. 3 and 4 in a further working step.

A running primary web P, for example a woven, flat textile web, is examined in a testing machine U (FIG. 1) for defects or longitudinal sections of different qualities. The testing machine U contains an unwinding station A, in which a winding 5 of the primary web P is supported in a carrying device 4, possibly with driven rollers, from which the primary web P is drawn off and conveyed over an inspection table T. The inspection table T is illuminated or illuminated by a light source Q so that a machine operator F can visually check the primary path P. In the running direction of the primary web P, the inspection table T is followed by a device V arranged underneath for separating and connecting longitudinal sections, in which the primary web P is divided into at least two endless webs B1 and B2, which are wound in a winding station W on windings 6, 7 provided there be wound up. For example, Bahn Bl contains only first-class goods, while Bahn B2 is second-class. Longitudinal sections from the primary web P are connected to one another in the web. The remaining, connected longitudinal sections of the primary web P form the web Bl. In the testing machine U, a control panel 2 is provided, which is connected to a central control device 3, which in turn is connected to the device V and (not shown) to the drives for the windings 6 , 7 and optionally the winding 5 is connected. The machine operator F continuously inputs command signals XI, X2 via the control panel 2 when he detects faults in the primary path or when he detects that there is no longer a fault. These command signals XI, X2 represent separation points for separating and separating the defective longitudinal sections from the primary path P. The command signals are advantageously always generated at the same point on the table T. Via the control device 3, which expediently contains a microprocessor MP, the device V is controlled fully automatically, so that it automatically carries out the separation, separation and connection of the respectively belonging separators. When disconnecting and connecting, the primary path P remains briefly. Depending on whether the path B1 or B2 is being formed, the path B1 or B2 which has not just been formed remains when the primary path P continues to run.

The device V is structurally integrated into the testing machine U. It can be an integral part of the U testing machine. However, it is also conceivable to provide the device V as an independent and removable structural unit in the testing machine U.

The machine operator F stands on a worktop 1, under which the webs B1, B2 run to the winding station W. Deflection rollers 56, 57 deflect the webs B1, B2 to their windings 6, 7.

If an optical error scanning and classifying device is present, this can take over the work of the machine operator and generate the command signals XI, X2 in the correct place. In the testing machine U, a measuring device (not shown) is connected to the running primary path P in such a way that it continuously determines and records the length. The records of this measuring device go into the control device 3, so that this is the primary path P can continue to run until each separation point represented by a command signal XI, X2 in the device V has reached the correct position.

In a winding machine C (Fig. 2), a large winding 9 of an endless primary web P in a total of three webs B1, B2, B3, e.g. different goods qualities, divided. The winding 9 is supported in a frame and may be driven to rotate. A swivel unit 10 is adapted to the respective winding diameter by means of a cylinder 11 and removes the primary material web P in order to introduce it into the sustained device V for separating and connecting the longitudinal sections formed. From the device V, which is mounted in a frame 12, the three webs B1, B2, B3 run to a winding frame 13, in which the windings 14, 15, 16 with their own drives are contained. Only one of the three lanes runs with the primary lane P, while the other two lanes stand still.

In device V, the division of the primary path is carried out fully automatically. For example, the primary web P is already provided with markings M1, M2 and M3, which, over the length, characterize different qualities or different characteristics of the goods which are to be brought together in the same webs B1, B2 and B3. The markings are registered optically, mechanically or electrically in a scanning device 58 in the device V or outside the device in order to receive the command signals XI, X2 indicated in FIG. 1 for the device V and for the drives of the windings 9, 14, 15, 16 to generate. Instead of the scanner 58, which may be optical, electrical, or otherwise, the Separation points can also be carried out by a machine operator. The markings M1, M2, M3 can be flaws, color markings or inserted objects.

The device V will be described with reference to FIGS. 3, 4 and 5. In the running direction of the primary web P through the device V, a feed device Z is provided behind a deflecting roller 17 for each front separating end TV (FIG. 4), and on one side of the primary web P a cross cutting device M is provided as part of a separating device H, to which the first and second holding devices Hl and H2 belong. On the other side of the primary web P there is an interchangeable connection device S with a positioning device E and a transverse seam forming device D. The web B1 extends to the winding 7 with its own drive 54 from the first holding device HI, while the web B2 extends from the second holding device H2 extends to the winding 6, which also has its own drive 53 in the winding station W.

In the direction of travel of the primary web P behind the deflecting roller 17, an opposing counter-roller 18 is mounted stationary on the other side of the web. As part of the feed device Z, this is assigned a conveyor roller 19 which can be driven with a drive 20 and which is seated vertically up and down on a piston rod of an actuating cylinder 21. In the position shown, the conveyor roller 19 is lifted off the primary web P. If the conveyor roller 19 is adjusted to the counter roller 18, a nip is created for the primary web P, in which the conveyor roller 19 conveys the primary web.

An actuating cylinder 22 is located in the feed device Z Stationarily mounted, which carries a feed plate 24 on its piston rod 23, which can be displaced obliquely downwards in guides 25 in the direction of the positioning device E. In the position shown in FIG. 3, the feed plate 24 is retracted behind the primary path P.

Immediately after the feeding device is the transverse separating device M, which in the exemplary embodiment shown consists of an adjusting cylinder running across the width of the web, advantageously an Origa cylinder 26, to which a separating element 27 is attached. The separating element 27 can be a cutting disk provided with its own drive.

In the positioning device E, a stationary support bar 28 is provided, with which a vertically movable pressure bar 29 is assigned. The pressure bar 29 can be lowered vertically from the position shown onto the support bar 28 by means of an actuating cylinder 30.

The transverse seam forming device D contains at least one sewing machine 31 which can be moved back and forth on a transverse guide 32 by means of a drive 33. The sewing machine 31 has its own sewing drive and a sewing material supply. Furthermore, a trimming device is indicated at 34, with which (FIG. 4) any protruding ends on the free side of a transverse seam 55 formed can be cut off.

A frame housing 35 is coupled via a piston rod 36 to a horizontal, stationary actuating cylinder 37 and guided in guides 38. On one The upper part 39 of the frame housing is mounted on the side of the web base body 40 so that it can be tilted by 90 ° about a tilt bearing 43. Attached to the base bodies 40 is a pair of holding profiles 41 which are continuous over the web width and which can be adjusted between the position opened in FIG. 3 and a position clamping the web by means of a clamping cylinder 42.

On a lower part 44 of the frame housing 35, a vertical actuating cylinder 45 is attached in a stationary manner, on the piston rod 46 of which base body 48 with holding profiles 49 are attached to the side of the web B2. The base bodies 48 are mounted so that they can be tilted together about a tilting bearing 51. Clamping cylinders 50 for actuating the holding profiles 49 are also provided. In the position shown in FIG. 3, the holding profiles 49 hold a protruding rear separating end TH of the web B2. The second holding device H2 can be raised by means of the actuating cylinder 45 from the lowered position shown in FIG. 3 to the position of the first holding device H1. Both holding devices H1 and H2 can be moved horizontally by means of the actuating cylinder 37 until one or the other holding device H1 or H2 arrives at the positioning device E. On the path of movement of the two holding devices Hl, H2 to the positioning device E, a stationary tilting stop 52 is provided, which causes the respectively arriving holding device Hl or H2 to tilt by 90 ° clockwise when the holding device approaches the positioning device E, whereas this holding device Hl or H2 tilts back by 90 ° when it moves away from the positioning device E.

In Fig. 3, the primary path P is just the first-class web Bl is formed, ie the holding profiles 41 are open and the web Bl is pulled through the holding profiles 41 and around the deflecting roller 56 and wound up by means of the drive 54, which - as indicated by an arrow - drives the winding 7. The second holding device H2 holds the rear separating end TH of the second-class web B2. The drive 53 is stationary (indicated by a crossed arrow). In the first-class web Bl, a transverse seam 55 can be seen, which was formed by connecting a rear and a front separating end TV and TH (based on the running direction).

5 shows the device V in the formation of the second-class web B2. The drive 53 runs while the drive 54 of the first-class web B1 is stopped. The frame housing 35 is moved to the left by means of the actuating cylinder 37, so that the second holding device H2 is aligned with the track of the primary track P. The holding profiles 49 are open. The rear separating TH of the first-class web B1 is held by the holding profiles 41.

The process for forming the transverse seam 55 (FIG. 3) in the first-class web B1 is as follows (starting from FIG. 5). First, the conveyor roller 19 is pressed against the counter roller 18. The primary path P is stopped. The holding profiles 49 go into the clamp position. The separating element 27 separates the primary web 1P from the second-class web B2. The second holding device H2 is lowered by means of the actuating cylinder 45, wherein it remains guided in the frame housing 35 by means of the guide 47. The drive 53 is stopped. By extending the piston rod 36, the first holding device H1 is displaced in the direction of the positioning device E (FIG. 4). When the tilting stop 52 is passed over, the base bodies 40 tilt 90 ° clockwise until finally the rear separating end H of the first-class web Bl lies on the support strip 28 and extends into the working area of the sewing machine 31. Thereafter, the feed plate 24 is shifted obliquely downward into the positioning device E by means of the actuating cylinder 22, the conveying roller 19 being driven at the same time and the primary web P being pulled so far that the front separating end TV formed during the separation of the primary path P onto the rear separating end TH on the Support bar 28 and reaches the work area of the sewing machine 31. Then the pressure bar 29 is lowered until the separators TH, TV are secured in position. The sewing machine 31 then moves along the separators and sews them together in the region of the transverse seam 55. Once this has been done, excess material can be cut off with the trimming device 34. The pressure bar 29 is then raised; the actuating cylinder 37 pulls the frame housing 35 back into the position according to FIG. 3. When the tilting stop 52 is passed over, the base bodies 40 straighten up again by 90 °. At the same time, the feed plate 24 is pulled back into the starting position shown in FIG. 3 and the conveyor roller 19 is raised. When the drive 54 is switched on, the first-class web B1 is wound onto the winding 7.

In the case of a new command signal representing a separation point, from which second-class goods are present in the primary path P, the primary path P is stopped and separated as soon as the separation point has reached the transverse separation device M. Front separating TV connected to the rear separating TH of the second class train B2 in the aforementioned manner. Here, the second holding device H2 must first be raised by means of the actuating cylinder 45 in order to be able to tilt over the tilting stop 52.

The separation, separation and alternating connection of the separators is fully automatic. The primary track only needs to be stopped for a short time. The command signals for the separation points can be generated by a machine operator (see FIG. 1) or by a scanning device (FIG. 2). After the respective command signal has been given, the control device continues to move the primary path P until the separation point has reached the uerjuer separation device M exactly. The other processes then run fully automatically.

In the case of a piracy sheet P made of synthetic material, a welding device or an adhesive device could also be provided instead of a sewing machine 31. Furthermore, a clamping device could be used instead of the sewing machine, which brings the clamping elements into the separating ends. It is also conceivable to assign a separate positioning device and transverse seam forming device to each holding device.

Claims

Method for producing endless webs from a primary web and device for carrying out the method, claims

1. A method for producing a plurality of endless webs from an endless, running textile primary web, characterized in that continuously selected longitudinal web sections are cut out from the primary web, that the separating ends of the longitudinal sections cut out and the separating ends of the primary longitudinal web sections remaining after the cutting out are connected alternately and the cutting out and the alternating connection depending on the separation points (Ml, M2, M3) representing command signals (XI, X2) is carried out fully automatically.

2. The method according to claim 1, characterized in that in the running primary path (P) successive separation points are determined that a command signal (XI, X2) is generated for each separation point that each longitudinal section in dependence on a first and a subsequent second command signal (XI, X2) is automatically cut out, and that after each first and after every second command signal, two associated separators (TH, TV) (TH, TV) are alternately connected automatically.

3. Method for producing endless, according to quality characteristics of different webs (B1, B2) from an endless, running textile primary web (P), in which the running primary web (P) is inspected for quality differences in a testing machine (U) and in longitudinal sections of different qualities is classified, characterized in that the classified longitudinal sections are separated out, separated, the separating ends formed by the separation (TH, TV) are connected alternately and the webs (B1, B2) are wound up separately and in that the separation, separation and alternate splicing after classification the primary web (P) is already carried out fully automatically in the testing machine (U) before winding.

4. Testing machine (U) for a running textile primary web (P), in particular knitted, woven or knitted web, with an inspection table (T) for optically checking the primary web (P) coming from an unwinding station (A), with at least one in Web running direction after the inspection table (T) arranged winding station (W), and with a motion drive (4, 53, 54, 20) for transporting the primary web (P) over the inspection table (T), characterized in that between the inspection table (T) and the winding station (W) has an automatic detaching device (H) for detaching longitudinal sections of the web classified at the inspection table (T) and an interchangeable connecting device (S) Connecting respectively related front and rear dividers (TH, TV) is provided.

5. Testing machine according to claim 4, characterized in that the separating device (H) and the interchangeable device (S) are structurally integrated in the testing machine (U).

6. Testing machine (U) according to claim 4, characterized in that the separating device (H) and the interchangeable device (S) form an independent removable assembly (V) in the testing machine (U).

7. Testing machine (U) according to claims 4 to 6, characterized in that the winding station (W) for each web (Bl, B2) has its own drive (53, 54).

8. Testing machine (U) according to claims 4 to 7, characterized in that at least one cross cutting device

(M) it is provided that a first and at least a second holding device (Hl, H2) which can be moved alternately in the primary web running direction are provided for a rear separating end (TH) of a web (B1, B2) in the direction of travel behind the cross cutting device (M) at least one positioning device (E) is provided for a respective front and an associated rear separating end (TH, TV) such that each holding device (Hl, H2) and the positioning device (E) are arranged such that they can be moved relative to one another, that between the transverse separating device (M) and the holding device (Hl, H2) is provided with at least one feed device (Z) for the front separating ends (TV) to the positioning device (E), and that in the positioning device

(E) a seam-forming device (D) for connecting the The front and rear dividing ends (TH, TV) of a track (B1, B2) that belong together are provided.

9. Testing machine according to claims 4 to 8, characterized in that the cross cutting device (M) a transverse to the primary path (P) drive, preferably an Origa cylinder (26), with a lateral separating element (27), preferably a driven cutting disc having.

10. Prü_fmaschine according to claims 4 to 9, characterized in that two holding devices (Hl, H2) are provided, each with a pair of holding profiles arranged on both sides of the web (41, 49), that the holding profiles (41, 49) of each pair by means of a Clamping drive (42, 50) between a holding position, in which they clamp the web between them, and a through position, in which the web runs freely, that the holding devices (Hl, H2), preferably with a common frame housing holding them (35), can be adjusted transversely to the web running direction approximately perpendicular to the web plane, that at about the height of the holding devices (Hl, H2) the common positioning device (E) is stationary, that each holding device (Hl, H2) by approx. 90 ° in the direction of the positioning device (E) is mounted so that one of the holding devices (Hl, H2) is height-adjustable relative to the other, that the positioning device Attention (E) between a positioning position and an insertion position relatively adjustable elements (29, 28) that the seam forming device (D) is mounted on the side of the positioning device (E) facing away from the holding devices (Hl, H2), and that the feed device (Z) one drawn from behind the primary path (P) Waiting position in a feed position to the positioning device (E) adjustable feed element (24) and a clamping and conveying device (18 - 21) for the front separating end (TV).

11. Testing machine according to claims 4 to 10, characterized in that each pair of holding profiles (41, 49) is mounted on rubber bodies (40, 48) and as a clamping drive (42, 50) has at least one actuating cylinder at the end.

12. Testing machine according to claim 11, characterized in that at least one auxiliary clamping device, preferably a magnet, is provided over the length of the pair of holding profiles (41, 49).

13. Testing machine according to claims 4 to 12, characterized in that the two holding devices (Hl, H2) are coupled to a common actuating cylinder (37, 38) for transverse movement.

14. Testing machine according to claim 13, characterized in that the actuating cylinder (37, 38) engages on the holding devices (Hl, H2) supporting frame housing (35), and that the frame housing (35) is guided in a straight line in guides (38).

15. Testing machine according to claims 4 to 14, characterized in that one (H2) of the holding devices (Hl, H2) by means of at least one

Vertical Steep Cylinder (45) in the frame housing (35) is adjustable.

16. Testing machine according to claims 4 to 15, characterized in that in the path of movement Holding devices (Hl, H2) to the positioning device (E) a tilt stop (52) is arranged.

17. Testing machine according to claim 10, characterized in that the positioning device (E) has a stationary support bar (28) and by means of an actuating cylinder (30) against it movable pressure bar (29).

18. Testing machine according to claims 4 to 17, characterized in that the seam-forming device (D) has a traversing sewing machine (31).

^' 3-

19. Testing machine according to claim 18, characterized in that a protruding cutting device (34) is provided with the sewing machine (31) or movable parallel to it.

20. Testing machine according to claims 4 to 19, characterized in that the movement and actuators of the components of the separating device (H) and the interchangeable device (S) are connected to a common control device (3) into which from the inspection table (T) Command signals (XI, X2) representing separation points can be entered, and that the control device (3) contains an automatic sequence control, preferably with a microprocessor (MP), with which the rail transport drives can be stopped when the separation point arrives at the cross cutting device (M), the separation Feeding and alternately connecting the separating ends can be controlled and, after connecting the two associated separating ends, at least the winding drive of the web in which the connecting seam has been produced can be started.

21. Device for producing at least two endless webs from an endless, running textile primary web (P), characterized in that a primary web cross-separating device (M) in the running direction of the number of webs to be produced (B1, B2, B3) corresponds to a first and at least one further holding device (Hl, H2) for the respective rear separating end (TH) are arranged downstream, that the holding devices (Hl, H2 ..) are arranged to be movable alternately across the track, that at least one of the holding devices (Hl, H2 ) alternately with a rear separating end (TH) operable positioning device (E) is provided, which can additionally be fed by means of at least one feed device (Z) front separating ends (TV), and that the positioning device (E) has a seam-forming device (D) for connecting is assigned to the two separators (TV, TH) present in the positioning device (E).