EP0464055B1 - Air-texturing machine - Google Patents

Abstract

An air-texturing machine (1) useful for processing a plurality of yarns (5) to form a textured yarn (38) comprises a working plate (7) which constitutes the side wall in a machine frame (2). Delivery mechanisms (12, 13, 14, 25) and heating pins (15, 16, 17) project into the interior of the machine frame (2). The air-texturing nozzle (36) is slidingly arranged in an air-texturing unit (22).

Description

The invention is based on an air texturing machine for processing several monofilaments, with an air texturing unit and a worktop on which elements such as delivery mechanisms, heating pins and the like are arranged.

Such an air texturing machine has become known from EP-A 0 284 945.

Air texturing machines are used to consistently crimp smooth, structureless synthetic filament yarns using their thermoplasticity. Several original yarns can be processed into a textured yarn with fancy yarns of different lore. The yarns are fed to an air texturing nozzle via delivery units. The delivery plants are usually operated at different speeds, which can be selected due to different, interchangeable toothed belt wheels. In addition to the supply units, heating pins are also sometimes provided, so that the yarns are next to one Cold stretching can also be hot stretched as required before the actual texturing. After texturing, the yarn can be stretched, fixed, shrunk and finished before it is wound up. The process steps mentioned are carried out by machines which are known to have a plurality of housings for the supplying plants or by so-called "plate machines" in which the supplying works, heating pins and the like are attached to a front plate.

The known air texturing machine is a so-called "plate machine", in which the working level for the operating personnel is a front surface from which the delivery mechanisms, heating pins and the like protrude and point to the operating personnel with their end faces. The supply units required, like the heating pins, are arranged individually on the plate. This has the disadvantage that if several yarns are to be textured into one yarn, the structural units become large. This makes it difficult to operate such an air texturing machine.

Furthermore, the operating personnel must be wrapped with circular hand and arm movements transversely to the arm extension direction when threading. From an ergonomic point of view, this is a very stressful sequence of movements. If toothed belt wheels are still to be replaced, not only must several work units be switched off, but the operating personnel must go behind the air texturing machine to carry out this work. In addition, it is only possible with a larger amount of equipment to install a traversing device for the delivery plants.

The invention is therefore based on the object of developing an air texturing machine of the type mentioned in such a way that it is easier to handle and operate with a clear structure.

This object is achieved in that the worktop in a machine frame formed from two side walls and a rear wall, which is open to the operating side, forms a side wall from which the elements, in particular the delivery mechanisms and the heating pins, into the interior of the machine frame point.

The air texturing machine according to the invention thus has the significant advantage that, due to its structure, the delivery mechanisms and the heating pins and the other elements on the worktop are not only clearly visible to the operating personnel at all times, but the arrangement of the worktop described also allows air texturing machines with their rear walls to adjoin one another can be set up. A space-saving, element-like construction of several air texturing machines according to the invention is possible, and important units can be shared by the respective air texturing machines as required. If the air-texturing machines according to the invention are set up with their rear walls in relation to one another and further ones are placed directly adjacent to one another, clear operation, maintenance and monitoring of the individual air-texturing machines is still possible. The elements on the worktop remain easily accessible and the toothed belt and toothed belt wheels can also be replaced from the operating side of the machine. If one of the air texturing machines according to the invention is to be converted, serviced or switched off to change the bobbin, then it can the immediately adjacent air texturing machines will continue to be operated. In the production of a wide variety of textured yarns, this allows a high degree of flexibility in the operation of the object according to the invention and ensures good machine utilization.

If at least two air texturing machines according to the invention are set up, not only is it possible to line up the machines directly, but the machines can also be arranged in such a way that a front and rear processing position is created without disadvantage.

In a further embodiment of the invention, the delivery mechanisms have at least two rollers which can be operated at different speeds and which are arranged coaxially.

This has the advantage that several delivery units can be arranged on a small surface of the worktop for carrying out different work steps. The clarity of the thread run is improved and individual positions can be more easily surveyed.

Since the construction of a new supplying plant replaces two conventional supplying plants, the worktop can basically be designed more clearly and depending on the application and application, the worktop can easily accommodate additional elements such as further supplying units, heating pins and brackets without adjacent elements would be impaired in their function and it would disturb the clear arrangement of the elements on the worktop.

Furthermore, a traversing device, means for winding the textured yarn and a drive are preferably provided on the worktop.

This has the advantage that an overflow roller and idling feed rollers can be assigned to the individual delivery plants with simple constructional means, which can be moved axially parallel and along the delivery plants by means of a drive. With these means, the yarn is not only guided precisely, it also prevents the yarn from running into the surface of the supplying plants. The delivery plants according to the invention require less maintenance.

Due to the fact that all processing stages of the yarns are made into a textured yarn on the worktop, an expansion of existing plant designs of air texturing machines according to the invention is easily possible. The side panel that closes off a system is replaced by a worktop and expanded with a machine frame. This is also possible simply because each air texturing machine has its own electric drive.

The traversing device with the overflow rollers and with the running laying rollers can also be operated with one drive for several air texturing machines.

Furthermore, the air texturing machine according to the invention preferably borders with the outside of the rear wall of a machine frame to the outside of the rear wall of a second machine frame.

This has the advantage that two diametrical working levels are created. The lines running in the rear wall area can be used by both machines. The accessibility of the toothed belt wheels remains unrestricted.

If, in a preferred embodiment of the invention, toothed belt wheels are arranged on the back of the worktop, which interact with the elements via axes and preferably with one another via toothed belts, the transmission ratio of the individual delivery mechanisms to one another can be checked by the operating personnel in a simple manner. When changing the toothed belt wheels, both the arrangement of the toothed belt wheels and the arrangement of the delivery plants can be viewed.

In a preferred embodiment of the invention, the machine frame has two vertically extending side supports open to the front.

This has the advantage that the machine frame is not only stable and torsionally rigid due to the side supports, but the side supports can also be used as a yarn channel. The yarns coming overhead from a creel are protected and always visible to the individual supply plants in a clear manner in the yarn channel.

In a further development of the invention, three delivery mechanisms, each with two rollers and a traversing device and one heating pin each, are arranged below an air texturing nozzle and at least one additional delivery mechanism is provided above the air texture nozzle, which supplies the textured yarn to a convection heater and / or the means for winding.

The arrangement has the advantage that the air texturing machine according to the invention can also be made compact in height. The yarns from the creel to the air texturing machine can always be guided at a height that allows the yarns to be threaded in by hand and without climbing aid. This is also possible if a large number of delivery plants are necessary for processing the yarns, since a delivery plant according to the invention can replace two delivery plants known from the prior art.

In a further embodiment of the invention, the delivery mechanism has three separately operable, coaxially arranged rollers. The delivery unit is arranged at a distance from a heating element.

This has the advantage that, in addition to cold drawing of the textured yarn, stabilization can also be carried out. The textured yarn only has to be led once out of the plane spanned by the axis of the delivery unit and the worktop by being fed to the heating element.

In a preferred embodiment of the invention, an air texturing unit and an operating, switching and monitoring panel are installed between the side supports.

This has the advantage that the air texturing machine according to the invention can be divided into two work areas. The individual yarns are processed and guided underneath the air texturing unit and the operating, switching and monitoring panel and the textured yarn runs above the air texturing unit and the operating, switching and monitoring panel. This measure contributes to an overall clearer machine structure.

In a further embodiment of the invention, the machine frame has a working channel in which a water pipe, an air pipe, a suction pipe and a finishing supply are preferably guided.

This has the advantage that, if the air texturing machines according to the invention are put together with their rear walls, these lines can be shared. The construction of a system consisting of several air texturing machines becomes easier and is more cost-effective.

In a preferred embodiment of the invention, the air texturing nozzle is displaceably arranged in a housing.

This has the advantage that the air texturing nozzle can be pulled out of the housing for inserting the yarns. Experience has shown that it is not very easy and difficult to insert the yarns into the nozzle in a small space. If the yarns pass through the air texturing nozzle, they can be pushed back into the work area. The individual yarns are placed in openings of the housing which are open at the top and feed the individual yarns of the air texturing nozzle at a distance from one another in a safe and orderly manner. The distance between the individual yarns corresponds to a straight yarn run from the respective delivery plant.

The air texturing machine according to the invention thus meets all the extended requirements that are placed on a machine in the processing of yarns into an air textured or air-entangled yarn. With the air texturing machine according to the invention, several can be lined up laterally Build up working levels and working levels diametrically. The individual air texturing machine can be built compactly by the delivery mechanisms according to the invention, so that the yarns can be guided at any point by hand without additional aids. In addition, the yarn can be clearly seen in every processing phase. The air texturing unit is installed at a preferred working height and the toothed belt wheels can be replaced from the working position of the operating personnel.

Further advantages result from the description and the attached drawing. Likewise, the features mentioned above and those listed further can be used according to the invention individually or in any combination with one another. The mentioned embodiments are not to be understood as an exhaustive list, but rather have an exemplary character.

Fig. 1

eine räumliche Darstellung von beispielsweise vier erfindungsgemäßen Lufttexturiermaschinen;

Fig. 2

eine Vorderansicht eines Teilausschnitts mit einem Seitenträger und einer Arbeitsplatte mit verschiedenen Elementen einer erfindungsgemäßen Lufttexturiermaschine;

Fig. 3

eine Seitenansicht eines Schnitts III-III der Fig. 1;

Fig. 4

einen schematischen Aufbau eines erfindungsgemäßen Lieferwerkes einer erfindungsgemäßen Lufttexturiermaschine;

Fig. 5

eine Lufttexturiereinheit in Seitenansicht einer erfindungsgemäßen Lufttexturiermaschine, stark schematisiert.

The invention is illustrated in the drawing and is explained in more detail with reference to exemplary embodiments in the drawing. Show it:

Fig. 1

a spatial representation of, for example, four air texturing machines according to the invention;

Fig. 2

a front view of a partial section with a side support and a worktop with various elements of an air texturing machine according to the invention;

Fig. 3

a side view of a section III-III of Fig. 1;

Fig. 4

a schematic structure of an inventive delivery plant of an air texturing machine according to the invention;

Fig. 5

an air texturing unit in side view of an air texturing machine according to the invention, highly schematic.

The individual figures of the drawing show the subject matter according to the invention in a highly schematic manner and are not to be understood to be significant. The objects of the individual figures are partially shown greatly enlarged in relation to each other, so that their structure can be shown better.

1, for example, four air texturing machines according to the invention are shown at 1. The air texturing machines 1 are assembled in a modular manner and have four working levels. Two of these working levels are directed towards the front and two towards the rear, which cannot be seen in FIG. 1. Each individual air texturing machine 1 has a machine frame 2. The machine frame 2 is constructed in such a way that it is delimited by side supports 3 towards the working level. The side supports 3 are preferably U-profiles which are open towards the front. They serve the air texturing machine 1 as a yarn channel 4. In the yarn channel 4, yarns 5 are guided which come overhead from a creel not shown in FIG. 1. The yarns 5 arrive at the working height in the direction of the arrow 6 on the air texturing machine 1 and are guided downwards in the yarn channel 4 using appropriate holding means.

The air texturing machine 1 according to the invention has a worktop 7 as a side wall, to which elements are fastened which are necessary for processing the yarns 5.

The yarns 5 are fed through yarn channels 8, 9, 10 to the surface of the worktop 7, on which are located the elements which receive the yarns 5. The yarn channels 8, 9, 10 connect the yarn channel 4 to the worktop 7 at the corresponding height. For the sake of clarity, the yarn guide on the worktop 7 is not shown in FIG. 1.

On the worktop 7, delivery mechanisms 12, 13, 14 are arranged adjacent to heating pins 15, 16, 17. The delivery mechanisms 12, 13, 14 can also be heated. A traversing device 19 leads an overflow roller, preferably made of ceramic, and parallel feed rollers parallel to the supply units in the direction of arrow 20. The axis of the feed rollers is angled to the axis of the overflow roller in such a way that a yarn 5 running on the feed roller cannot run over the end face of the feed roller.

The yarns 5 can be transported and cold-drawn by means of the delivery mechanisms 12, 13, 14 and, in conjunction with the heating pins 15, 16, 17, the yarns 5 can also be hot-drawn. A number of base yarns and fancy yarns can be guided as yarns 5 via the feed mechanisms 12, 13, 14. As shown by way of example in FIG. 1, three yarns 5 are guided in the yarn channel 4, one of the yarns 5 being fed to the worktop 7 as base yarn and the other two yarns 5 being fed to the worktop 7 as fancy yarns. The three yarns 5 are supplied to an air texturing unit 22 after they have passed through the delivery mechanisms 12, 13, 14 and, if necessary, also the heating pins 15, 16, 17. The air texturing unit 22 is arranged next to an operating, switching and monitoring panel 23 between the vertically extending side supports 3 of the machine frame 2. The yarns 5 are textured into a yarn in the air texturing unit 22. The textured yarn coming from the air texturing unit 22 is fed to a further delivery unit 25, via which the textured yarn can either be cold-drawn or can also be hot-drawn with a corresponding heating pin, which is not shown in the figure, or via the delivery unit 25, via which If the traversing device 19 is also assigned corresponding overflow rollers and accompanying feed rollers, the textured yarn is fed to a convection heater 28. In the area of the delivery unit 25, the textured yarn can be fixed, shrunk and / or stretched. After one of the treatments mentioned, the textured yarn is fed to a winding device 30. The winding device 30 is a known design element, which is not shown in FIG. 1.

The overflow rollers and idling feed rollers assigned to the delivery unit 25 are part of the traversing device 19 and, like the overflow rollers and idling idler rollers of the other delivery units 12, 13, 14, are moved in the direction of the arrow 20 in the operation of the air texturing machine 1 according to the invention.

A working channel 31 extends between the rear walls of the individual air texturing machines 1, in which common lines are guided for the individual air texturing machines 1. The air texturing machines 1 can be adjusted using adjusting screws 32 be aligned. Two of the assembled air texturing machines 1 are provided on one side with cover plates 33 which can be exchanged for countertops 7 if required. Together with other machine frames 2, a system that already consists of several air texturing machines 1 can be expanded as desired. On the side walls of the plant, which cannot be seen in FIG. 1, drives for the traversing device 19 are provided, which move the traversing device 19 of each air texturing machine 1 centrally.

2 shows a partial area of a front view of the air texturing machine 1 with a side carrier 3.

The yarns 5 come from above in the yarn channel 4 and are fed in the direction of the arrow through the yarn channels 8, 9, 10 to the feed mechanisms 12, 13, 14. The delivery mechanisms 12, 13, 14 have two rollers 12 ', 12'',13', 13 '', 14 ', 14''which can be operated at different speeds. The yarns 5 are guided by the traversing device 19, which moves back and forth in operation in the direction of the arrow 20, to the feed mechanisms 12, 13, 14. The yarns 5 run on the traversing device 19 in rotatable overflow rollers or on idling feed rollers. The axis of the feed rollers is angled to the axis of the overflow roller. The yarns 5 are either cold-drawn by means of the delivery mechanisms 12, 13, 14, in that the yarn or yarns 5 are transferred from a roller 12 'at a lower speed to the roller 12''at a higher speed. In addition, the yarns 5 can be hot drawn in conjunction with the heating pins 15, 16, 17 and the delivery mechanisms 12, 13, 14. The yarns 5 are coming from the supplying units 12, 13, 14 into the air texturing unit 22, in which they have a moistening device 35 go through. From the moistening device 35, the yarns 5 are passed through an air texturing nozzle 36, in which they are treated with compressed air, preferably with a pressure of p = 10 bar. The air texturing nozzle 36 leaves a textured yarn 38 which is fed to the delivery mechanism 25 via known holding means. The delivery mechanism 25 in FIG. 2 is designed, for example, in such a way that it has three rollers 25 ', 25'',25''', which can be driven at different speeds. Overfeed rollers and idling feed rollers are assigned to the feed unit 25 and are subjected to the same movement sequence as the overflow rollers or idler feed rollers of the feed units 12, 13, 14 via the traversing device 19. Instead of the delivery unit 25, two delivery units, each with two rollers, can be used. Furthermore, it is also possible to provide a heating pin in the area of the delivery unit 25. The delivery unit 25, like the delivery units 12, 13, 14, can be heated. The textured yarn 38 can be fed into the convection heater 28 from the delivery unit 25. The textured yarn 38 is fixed in the convection heater 28 and, depending on the advance, one of the rollers 25 ', 25'',25''' may also have shrunk. With the delivery mechanism 25, the textured yarn 38 can either be cold-drawn or hot-drawn. The textured and treated yarn 38 is fed to the winding device 30 via known means.

The delivery mechanisms 12, 13, 14, 25 are driven by an electric drive 40. The motor shaft of the drive 40 protrudes on the other side of the worktop 7. A motor 40 ′ or a drive controls the movement sequence of the traversing device 19 in the direction of the arrow 20.

3 shows the air texturing machine 1 in section III-III of FIG. 1. Working planes 42, 43 on both sides are indicated by arrows in the figure. 3 shows two worktops 7 from two air texturing machines 1. The yarns 5 are fed in the direction of the arrow to the yarn channel 4 of the side carriers 3 via holding means. The yarns 5 run in the positions of the delivery mechanisms 12, 13, 14 via the yarn channel 4. The yarns 5 are conveyed to the delivery mechanisms 12, 13, 14 and, if necessary, the heating pins 15 via the traversing device 19 with the appropriate overflow rollers or accompanying feed rollers. 16, 17 fed. After the feed mechanisms 12, 13, 14, the yarns 5 pass through the air texturing unit 22, which has the moistening device 35 and the air texturing nozzle 36.

The air texturing unit 22 is connected via lines to a water line 44, an air line 45 and a suction line 46. The water line 44, the air line 45 and the suction line 46 are guided in the working channel 31, which extends between the rear walls of two air texturing machines 1. The lines in the working channel 31 can be used both by the air texturing machine 1 directed to the left in the drawing and by the air texturing machine 1 directed to the right.

The yarn textured in the air texturing unit 22 is fed to the delivery unit 25, to which overflow rolls and / or accompanying feed rolls are assigned. Instead of the delivery mechanism 25, two delivery mechanisms according to the invention can also be used and arranged. A heating pin can be provided adjacent to the delivery mechanism 25. The textured yarn can be fed to the convection heater 28 via the delivery unit 25 and the textured yarn can also be cold or hot drawn in the area of the delivery unit 25. From the delivery plant 25 the textured yarn 38 is fed to a winding device 30. The air texturing machines 1 are each driven by the motor 40.

4 shows a schematic structure of a delivery plant 12 according to the invention. The delivery plants 13, 14, 25 can be constructed similarly to the delivery plant 12. The delivery mechanism 12 is attached to the worktop 7 via releasable connecting elements. A hollow shaft 50 is supported via bearings 48, 49. The hollow shaft 50 is connected to a toothed belt pulley 51. If the toothed belt pulley 51 is rotated, the roller 12 'also rotates. The shaft 55 of the delivery mechanism 12 is supported via bearings 53, 54. The shaft 55 is rotatably connected to a toothed belt pulley 56. If the toothed belt pulley 56 is rotated, then the roller 12 ″ also rotates. From Fig. 4 it is easy to see that the rollers 12 ', 12' 'can be operated at different speeds. However, the construction of the delivery mechanism 12 is to be understood only as an example, and a similar construction of a delivery mechanism that has three rollers is also conceivable.

5 shows a side view of the air texturing unit 22 in a highly schematic form. A housing 58 accommodates the humidification device 35, which is connected to the water line 44. The air texturing nozzle 36 is also arranged in the housing 58 and can be displaced into the position shown in dashed lines in the figure. In the position of the texturing nozzle 36 pulled out of the housing 58, the yarns 5 can be introduced more easily into the air texturing nozzle 36. The suction line 46 and a waste water line (not shown in the figure) can be connected via an opening in the housing 58.

Claims (12)

1. Air texturing machine for the treatment of a plurality of monofilaments, with an air texturing unit (22) and a work plate (7) on which elements such as suppliers (12, 13, 14, 25), heating pins (15, 16, 17) and the like are arranged, characterized in that the work plate (7) forms a side wall of a machine frame (2) formed from two side walls and a rear wall which is open in the direction of the operating side, the elements, in particular, the suppliers (12, 13, 14, 25) and the heating pins (15, 16, 17) facing into the inner region of the machine frame (2) from this side wall.
2. Air texturing machine according to claim 1, characterized in that the suppliers (12, 13, 14, 25) exhibit at least two rollers (12', 12'', 13', 13'', 14', 14'', 25', 25'') which can be operated with differing speeds and which are arranged coaxially.
3. Air texturing machine according to claim 1 or 2, characterized in that a cross-winding device (19), means for winding-up a texturized yarn (38) and a drive mechanism (40, 40') are provided for on the work plate (7).
4. Air texturing machine according to one of the claims 1 through 3, characterized in that the outer side of the back wall of a machine frame (2) borders on the outer side of the back wall of a second machine frame (2).
5. Air texturing machine according to one of the claims 1 through 4, characterized in that toothed-belt wheels (51, 56) are arranged on the back side of the work plate (7) which work together via axles, with the elements and, preferentially, by means of toothed-belts with each other.
6. Air texturing machine according to one of the claims 1 through 5, characterized in that the machine frame (2) exhibits, towards the front side, two vertically running side supports (3) which are open towards the front.
7. Air texturing machine according to one of the claims 1 through 6, characterized in that, preferentially, three suppliers (12, 13, 14) are arranged with two rollers (12', 12'', 13', 13'', 14', 14'') each and with a cross-winding device (19) and one heating pin (15, 16, 17) each below an air texturing nozzle (36) and at least one additional supplier (25) is provided for above the air texturing nozzle (36) which feeds the textured yarn (38) to a convection heater (28) and/or to wind-up means.
8. Air texturing machine according to claim 7, characterized in that the supplier (25) exhibits three separate operational coaxially arranged rollers (25', 25'', 25''').
9. Air texturing machine according to claim 8, characterized in that the supplier (25) is arranged at a separation from a heating element.
10. Air texturing machine according to one of the claims 6 through 9, characterized in that an air texturing unit (22) and an operation, switching and monitoring indicator board (23) are installed between the side supports (3).
11. Air texturing machine according to one of the claims 1 through 10, characterized in that the machine frame (2) exhibits a work channel (31) in which, preferentially, a water conduit (44), an air conduit (45), a suction conduit (46) and a brightening or softening means are arranged.
12. Air texturing machine according to one of the claims 1 through 7 and according to claim 11, characterized in that the air texturing unit (22) which is built within a housing (58) in a fixed spatial location in the machine frame (2) exhibits an air texturing nozzle (36) which is arranged in a displaceable fashion.

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