DE1710990A1 - Plant for the production of reinforcement fabrics - Google Patents

Description

Plant for the production of reinforcement fabrics,

The invention relates to a system for the production of reinforcing fabrics with a revolving spinning ring and a larger number of thread-carrying bobbins attached to it, with a pair of endless support chains with parallel tracks running inside the spinning ring. In systems of this type, the structure is such that the threads are wound around the webs in smooth turns at appropriate intervals from one another. Furthermore, a drive arrangement is provided for the spinning ring and for moving the parallel tracks of the endless support chain pair forward. In such a system (see US Pat. No. 2 691 852) it is also known to provide a separating device in order to cut the windings open at points correspondingly distant from one another, so that relatively short pieces of yarn are produced. It is also known (see USA patents 2 954 816 and 2 95 ² I-817) that the threads in each

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00981 9/18 02

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse

of the turn and cut their ends between special To arrange clamping straps as a warp thread, between special clamping straps to be arranged as a warp thread between which the weft threads are shot. This is usually followed by the Application of paper to the loose fabric thus produced. The reinforcement fabrics produced on the known systems have the disadvantage that their structure is loose and the arrangement, in particular of the warp threads, is not in a well-defined manner Intervals and thus uncontrollable.

The invention is based on the object of the known systems for the production of reinforcing fabrics, such as those used for reinforcement of paper, plastic foils or similar materials are used, to be improved in such a way that an efficient system is created, in which, in particular, the threads forming the reinforcement fabric are neatly and precisely arranged and much better are held together than in the previously known systems the case is.

The invention solves this problem in that a fixed, non-rotatable guide is arranged next to the spinning ring is on which the individual threads come to rest when the spinning ring rotates and thus at perfectly even intervals can be placed on the parallel tracks of the pair of carrying chains. A particularly advantageous embodiment consists in the fact that close to the parallel tracks of the endless pair of carrying chains two pairs of belts from each back Endless V-belts running on the back to grasp of the threads and continuation in unconditional parallelism in the same plane and for precise guidance as well as for the fixed

009819/16 02

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwäger Strasse

Compression of each pair of belts from above and below against the V-belt pressing pairs of caterpillars are provided. In order to fix the tissue created in this way in a well-defined way, a proposal of the invention is that arrangements for applying from warp thread to the weft threads fixed perfectly parallel to one another to achieve a fabric and arrangements are provided for spraying this tissue with a plastic for the purpose of mutual fixation. As particularly beneficial recommends an embodiment that is characterized is that the endless caterpillar chains provided for guiding and for pressing the pairs of V-belts together correspond to the V-belt profile have corresponding V-shaped flanges that grip the V-belt and roll over V-belts parallel to the V-belt ribs formed on guide plates above or below the pair of V-belts can be guided, whereby any Lateral movement of the V-belt pairs, but also any twisting or bending, is switched off. Is useful for progressive severing of the threads wound around the support chains, a cutting device which melts these windings intended.'

The advantages achieved by the invention are mainly to be seen in the fact that it is possible with the system according to the invention, the Reinforcement fabric much lower, firmer and more even to manufacture. In addition, the invention Plant due to the well-defined feeding of the threads to significantly higher working speeds.

In the following the invention is explained in more detail with reference to a drawing showing only one embodiment; it demonstrate:

0098 19/16 02 * tf>

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse

Fig. 1 is a schematic view of an inventive Plant seen from the side;

Figure 2 is a horizontal cross-section along line 2-2 in Fig. 1, from which the pair of support chains, which remove the yarn windings from the spinning ring, can be seen;

Fig. 3 is a section through Fig. 2 along line 3-3 in enlarged scale, from which the stationary guide for each yarn from the spinning ring to the support chains can be seen to ensure an even spacing of the yarn threads;

4 shows a section through FIG. 2, along the line 4-4 on an enlarged scale, whereupon one of the carrying chains can be seen with a thread winding thereon which is severed by a hot knife;

Fig. 5 is a section through Fig. 4 along line 5-5 in enlarged scale, from which the gripping of the yarn parts by the shoulder strap can be seen, before they leave the suspension chain completely; and

Fig. 6 is a section through Fig. 1 along the line 6-6 on an enlarged scale, from which the support of the Carrying strap can be seen through endless caterpillars, reducing the yarn threads during spraying and drying of the sprayed adhesive must be held firmly.

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BATH

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse

The system according to the invention has a vertical plane a plurality of rubber-coated rollers 12 rotatable spinning ring 10, wherein at least one of the rollers is driven at an adjustable speed to control the revolving movement of the To generate spinning ring. On each side of the spinning ring 10 several thread-carrying bobbins 14 are arranged, whereby one right A considerable number of threads, each represented by the reference numeral 16, is fed to an inner guide ring 18 which is carried by the spinning ring 10. f

The inner guide ring 18 arranged in the spinning ring 10 has as can best be seen from Fig. J5, a large number of the Scope of distributed friction-reducing eyelets 20 through which in each case a thread part 16 runs radially inward.

With the spinning ring 10 and the guide ring 18, as can best be seen from Figures 1 and 2, a pair of endless oppositely horizontally running chains 22 are connected, which create parallel paths 24 within the guide ring 18, over which the yarn parts 16 in flat helical Windings are wound as shown in FIG. 26 in FIG. The Tragetecten 22 are driven in the arrow direction with adjustable 'rer constant speed, so that when the | The spinning ring 10 and the guide ring 18 rotate around the parallel tracks 24 ′ of the carrier chains, the yarn parts 16 are wound around these tracks 24 of the carrier chains 22 as flat helical windings as described above.

Fig. 5 shows, like Fig. 4, that each support chain 22 over a considerable part of the track 24 by a fixed guide

09819/1802

Patent Attorneys Or. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse 36

is supported, with which the rollers 28 of the support chains 22 are in engagement.

Fig. 4 shows the shape of the winding, which the threads 16 opposite the chain 22 take. These chains 22 have a short right-angled extension 30 on each two joint which continuous U-shaped parts 32 made of rubber or sit plastic, which support the windings of the threads 16 properly.

As can be seen from FIG. 3, the yarn threads 16 come alternately from the right and left onto the guide ring 18 and step out of the eyelets 20. Since these threads have some play in the loops, they were usually hardly on the tracks 24 of the chain 22 are deposited at regular intervals. For this reason, a fixed guide 34 is arranged so that each Thread upon rotation of the guide ring 18 in the direction of arrow 36 and simultaneous movement of the support chains 22 in The direction of the arrow 38 is detected by this guide when it exits an eyelet 20 and is guided downwards on her, whereby the individual threads 16 at exactly equal intervals on the Carrying chains 22 are deposited. Flg. 3 shows in 40 a thread 16 which is grasped by the guide 34 and begins there Guide to slide downwards along, wherein the reference numeral 42 represents a thread, which shortly before on the support chain 22 was filed.

Fig. 4 shows the use of a heated knife to cut the threads at the ends of each winding immediately next to the support

BATH ORIGINAL 009819/1602

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Ketrwiger Strasse

open chain 22. In one embodiment of the invention, has this heated knife 44 takes the form of an electric . Soldering iron that is fixed in the appropriate position and is heated to a temperature at which, when the windings of the thread 16 by the forward movement of the chains 22 are pushed against the hot knife 44, individual pieces of thread be separated. As the heated knife melts the ends of the cut thread and sticks them together, the individual Fibers of the yarn threads do not separate. The above The heated knife described is intended primarily for use with high-strength plastic threads, for example made of nylon or rayon, but it can of course also be used with fiberglass yarns.

Just before the heated knife 44 each winding 26 of the threads 16 severed, the thread parts are grasped by a double pair of endless carrying belts 50 and 52, which over pulleys 54-56 and 5Ö-6O are running. These straps are already known per se (USA ^ Patent 2 954 817) and are designed as V-belts and have at their thickest point a keyhole-like longitudinal slot in which an endless cable 62 or 64 frictionally engages. These endless cables 62 and 64 form a double pair, one on each side, and run over corresponding ones Sheaves 66-68 and 70-72. Your training is already known per se (USA patent 2 954 817.

Accordingly, as best seen in FIG. 5, the upper thread 16 of each winding at the end near the support chains between the belt 52 and the cable 64 and the lower thread part

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Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Ketrwiger Strasse 36

16 of each winding correspondingly through the belt 50 and the Cable 62 seized. As best seen in Fig. 1, run the cables 62 and 64 from the right end of the system to the inside of the windings 26 ffler thread point, so that when the Cables 62 and 64 are inserted into keyhole-like recesses in shoulder straps 50 and 52 adjacent to pulleys 54 and 58 with the heated knife 44 severing the ends of each coil practically simultaneously, the ends of the Fa-P dent parts under friction essentially as shown in FIG ^ to be held. In practice, cables 62 and 64 grip the ends of the thread parts 1.6 and press them into the grooves in the Straps 50 and 52, whereupon the heated one immediately afterwards Knife 44 cuts the winding. The cables move into the grooves of each strap and carry the thread ends with himself. As can be seen from Fig. 5, the belts 50 and 50 run Back to back and bring the separate planes of the thread portions 16 together, which is a significant improvement compared to the already known arrangements (USA patent 2 954817) means.

While the upper and lower thread parts 16 are held by the belts w 50 and 52 (FIG. 5), the one pair of belts, fe, as is already known from the aforementioned system (US Pat. No. 2,954,817), is driven at a higher rotational speed than the other to bring the thread parts into the weft thread position. The return of the cellar belts and the thread parts carried along by them is shown schematically in FIG. 1 through the various paths 74 and 76. The belts are brought together by a double pair of pulleys 78 some distance in front of a drying oven 80.

00981 9/1602

Patent attorneys Dr. W. Andrejewskt, Dr. M. Honke, 43 Essen, Kettwiger Strasse

brings. The thread parts can return in the manner described be brought so that they protrude vertically or in any way bigem angle, for example at an angle of 45 °, in order to give the best possible desired tissue-reinforcing effect.

At any point between the pulleys 78 and the Oven 80 can have several warp thread forming pad parts 82 via a comb 84 and a roller 86 on the underside of the weft threads are applied, the warp threads at any distance can be arranged from each other. If it proves to be desirable, the weft threads can also be accessed from above warp threads are applied in a similar manner.

This is followed by spray heads 88 or other suitable ones Arrangements such as those located in Fig. 1 between the pulleys 78 and the oven 8O, in operation to the warp and to spray weft threads with a binder. A typical binder for this purpose is vinyl plastisol or another Matching flexible resin, which can be set under the action of heat, so that during the passage of the threads through the oven 80, the binder dries up or solidifies so that ' a fabric is created, which runs in the longitudinal direction at a certain distance from each other high-strength warp threads and laterally running weft threads at a length from one another has / which at any desired angle to each other run and overall by the flexible, perfect dried binders are bonded together and thereby form a fabric that can be applied to paper, vinyl resin or other Foils or sheets can be applied and there a very

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Patent Attorneys Or. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse 36

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forms a tear-resistant layer. As can be seen from Fig. 1, the then wound up the finished reinforcing fabric on a roller 90.

A special feature of the invention is shown in Flg. 6-6, the belts 50 and 52 being carried substantially between the pulleys 78 and the outlet end of the furnace 80 by endless caterpillars which are represented as a whole by the reference numerals 92 and 9k. Each of these endless crawler belts has rollers 96 which are engaged with ribs 98 formed on the upper and lower guide plates 100. Some of the chain links have flange portions 102 which are slidably supported on guide plates 100, and other joints have V-shaped flanges 104 which grip the wedge-shaped sides of belts 50 and 52 so that these belts between pulleys 78 and the outlet end of the furnace 80 can be passed precisely. As a result, the thread parts 82 and 60 are held precisely in the desired position relative to one another during the spraying of the binding agent and during the drying of this binding agent in the oven 80. As a result, the uniform position of the thread parts to one another is absolutely established and the quality and appearance of the finished product is significantly improved.

It is also possible, as is the case from already known methods (USA-Patejit 2 954 817) is known, paper, plastic film and the like. apply to the thread parts before or after printing

009819/1602

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse 36

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run the same through the furnace 80. As an example, FIG shown as a plastic film 106 from a roller 108 on the underside of the fabric after the binding agent has been applied and just before the whole has passed through the oven 80 is fed. A similar film can of course, if this appears desirable, also on the top of the fabric ' be applied.

Expectations:

009819/1602

Claims (3)

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Straße 36 - 12 - claims 1. Plant for the production of reinforcement fabrics with a rotating Spinning ring and a larger number of thread-carrying bobbins attached to it, with one running inside the spinning ring Pair of endless carrying chains with parallel tracks, for a long time before the threads in smooth turns at appropriate intervals are wrapped around each other, as well as with drive assemblies ™ for the spinning ring and for advancing the parallel webs of the endless pair of carrying chains, characterized in that a fixed, non-rotatable guide next to the spinning ring (10) (34) is arranged, on which the individual threads (16) come to rest during the rotation of the spinning ring and thus in perfect condition evenly spaced from one another on the parallel tracks (24) of the pair of carrying chains (22,22) can be placed. 2. Plant according to claim 1, characterized in that close to the parallel tracks (24,24) of the endless pair of support chains (22,22) two pairs of belts made up of endless V-belts (50 * 52) running back to back to one another for gripping of the threads (16) and continuing in unconditional parallel! - ™ did in the same plane and for accurate guidance as well as to firm compression of each pair of belts (50, 52) from above and below against the pairs of caterpillars that press against the V-belts (92,94) are provided. NfiUe UnteliaOen! Art. 7 Ή Para. 7 * .- l Sa ^ z ä of the change «runi * ees. ν 4 9. 009819/1 602 Pattntanwälte Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse 36 - 13 - 3. Plant according to claim 1 or 2, characterized in that Arrangements (84,86) for applying warp threads (82) to the Weft threads (16) fixed perfectly parallel to one another to achieve a fabric and arrangements (88) for spraying this fabric are provided with a plastic for the purpose of mutual fixation. 4 · Plant according to claim 2 or 3 *, characterized in that for guiding and compressing the V-belt pairs f (50,52) provided endless caterpillar chains (92,94) the V-belt profile corresponding V-belt gripping V-S-shaped Have flanges (1O4) and on rollers (96) parallel to the V-belt route on guide plates (100) above or below of the V-belt pair formed ribs (98) can be guided, whereby any lateral movement of the V-belt pairs, but also any lateral movement of the V-belt pairs, but also anything Twisting or bending can be prevented, 5 · Plant according to any one of the preceding claims, characterized in characterized in that for the progressive severing of the chain around the carrying chains (22) wound threads (16) a cutting device (44) which melts these windings is provided. ' '■■■ A PAe Dr Andrejewski, Dr Honke 0098 1 9/16 02 Blank page