EP3049566B1 - Device for treating strand-shaped textile fabric in the form of an endless fabric strand - Google Patents

Description

The invention relates to a device for the treatment of rope-shaped textile goods in the form of an endless strand of goods, which is circulated at least during part of its treatment.

For the finishing and general treatment, in particular synthetic rope-shaped textile goods, so-called long-storage machines are used in discontinuous piece finishing in a wide range. These long-storage machines have an elongated, substantially tubular treatment container and a transport nozzle arrangement arranged in the latter, which can be acted upon by a liquid and / or gaseous transport medium flow. The transport nozzle assembly is adjoined by a transport path, which opens onto a goods strand inlet side in a storage section of the treatment container receiving a diced goods strand package. The storage section typically includes a sliding floor extending at a distance above the underlying container wall, which extends from the fabric strand inlet side of the storage section to a fabric strand outlet side adjacent to the transport nozzle assembly.

Examples of such long-storage machines are in the DE 2 207 679 A , of the DE 36 13 364 C2 , of the DE 10 2007 036 408 B3 and the FR 2 681 346 described, just to name a few examples. These machines are usually with a relatively high liquor ratio (1: 8 to 1:12) treated floating in the treatment liquor. The product strand drive consists of a reel and a transport nozzle. In many cases, the reel is a source of damage to goods in the form of grinding or tissue displacement. Due to low contact forces between the strand and reel as well as smooth reel surfaces and a liquid film between the strand and reel, the pulling action of the reel is often rather low. In addition, the tuning of the product strand speed generated by the transport nozzle and the reel peripheral speed is problematic in many cases. The use of reels free-running in the direction of product strand transport attempts to reduce the surface damage to the treated textile product caused by the braking action of the reel.

From the US 5,850,651 is also a long-storage machine is known in which in one embodiment is dispensed with a reel and the drive of the rotating goods strand by air or an air / liquid mixture is carried as a transport medium, with which a transport nozzle can be acted upon. A similar construction of a long-storage machine is from the JP 07 305261 A known. This machine also works without a reel. The transport of goods is carried out by a transport nozzle arrangement, which is optionally operated with gaseous and / or liquid transport medium. Machines of this type come with a relatively short trigger height, over the length of the product strand at the output of the goods storage section must be raised until it enters the transport nozzle. Thus, the tensile forces exerted on the circulating strand of goods in this area are correspondingly lower, which is advantageous for the treatment of delicate textile goods.

Depending on the type of textile product to be treated, machines with different designs are used in practice. For very sensitive textiles, for example, machines with transport sections arranged above the goods strand store are used in overflow mode. The case using the nozzle column of the transport nozzles are relatively large and the nozzle pressures of the transport medium flow used are correspondingly small. The product strand speed is about 100 m to 200 m / min. On the other hand, for the treatment of textile products requiring a high strand speed, such machines require high transport medium pressures at relatively small nozzle gaps. The typical goods speeds are here about 200 m to 600 m / min. For the treatment of textile goods with different product weights transport nozzles are therefore used with different nozzle cross-sections. The change of the transport nozzles is very expensive.

From the DE 37 34 260 C1 is a wet treatment apparatus for textile goods in strand form with arranged in a treatment tank nozzle unit is known, in which both the width of the provided for the introduction of the treatment liquor slots of the nozzle unit and serving for the central passage of the textile material and the treatment liquor free cross section of the nozzle unit on the light Width are adjustable in size. However, the adjustment of the width of the slots commonly referred to as nozzle column of the nozzle unit as well as the cross section of the nozzle unit is possible only in a relatively small constructively predetermined ratio. The setting of a large cross-section and a small nozzle gap for a high-speed continuous product strand of a heavy textile material is just as problematic as the setting of a large nozzle gap in conjunction with a small cross section, as required for an overflow treatment of a light textile material. In addition, only two of the four sides of the rectangular nozzle unit are provided with a nozzle nip or slot. As a result, the pulling action of the nozzle unit is limited to the continuous strand of goods.

Basically the same applies to one from the EP 0 531 868 A1 known device for wet treatment of textile material.

At one of the DE 10 2007 036 408 B3 known device for treating textile material in the form of a long-lasting storage machine, a transport nozzle arrangement is provided, which can be acted upon by a gaseous transport medium flow, so that the device operates on the aerodynamic principle. The transport nozzle arrangement has a Venturi transport nozzle with a cylindrical transport nozzle housing, in which a nozzle ring gap is formed, which is acted upon by a blower unit with a transport gas flow. The radial width of the nozzle ring gap can be changed by axial displacement of a nozzle molding in the transport nozzle housing. The nozzle ring gap is bounded radially inwardly and outwardly in a circular arc shape. It is followed by a substantially cylindrical mixing section for the treatment agent or liquor streams and the transport gas flows. A basically similar transport nozzle training with adjustable nozzle ring gap is also from the EP 1 985 738 A1 known for so-called short-storage machines. These are high-temperature (HT) piece dyeing machines with a treatment container in the form of a pressure-resistant, substantially cylindrical vessel, in which the product strand storage is formed in a U-shaped manner with upwardly pointing legs. The on the outlet side by means of A reel continuously removed from the storage line of goods is carried out by a Venturi transport nozzle and introduced via a transport nozzle downstream transport path on the goods inlet side continuously into the memory. The machine works with a gaseous transport medium flow, ie according to the aerodynamic principle. For the treatment of certain light-weight textile products, in particular in machines which operate on the hydraulic principle, this design of the transport nozzle with a circular die gap is not optimal.

With an auxiliary transport nozzle with circular nozzle gap also works from the US 3,924,424 A known long-storage machine, in which the rotating strand of goods is introduced via a driven reel in a vertically arranged transport tube. The cylindrical transport tube is rolled out at its funnel-shaped widened upper edge to the outside, to form a narrow 180 ° -Umleitungskanal for supplying Transportmüßigkeit to an annular nozzle gap together with an edge overlapping also rolled end portion of the wall of a surrounding cylindrical auxiliary liquid reservoir. The circular nozzle gap is unadjustable.

Based on this prior art, it is an object of the invention to provide a device for the treatment of rope-shaped textile product of the type mentioned, which is characterized by a wide field of their applications by allowing it to achieve optimum transport conditions in strands of different textiles without the need for major modifications or conversions to the machine.

To achieve this object, the device according to the invention, the features of claim 1.

In the new device, the transport nozzle arrangement has a transport nozzle with an angular nozzle inlet opening and a dimensionally adapted in cross-section angular outlet part for the strand of goods, between which a nozzle gap for the transport medium is limited. This nozzle gap is adjustable and also bounded on at least one side all around by straight nozzle elements, which have a substantially part-cylindrical cross-sectional shape.

Under "part-cylindrical cross-sectional shape" are understood cross-sectional shapes that are not limited to more or less accurate circular cylindrical shapes, but including fall quite generally convex bead-like structure whose nozzle surface delimiting surface is curved in the manner of a cylinder of any cross-sectional shape.

In a preferred embodiment, the nozzle gap is tapered in the flow direction, while the nozzle inlet opening for the product strand may be rectangular or square, which applies to the same extent for the cross section of the outlet part. By this angular design nozzle inlet opening, which continues in the subsequent transport pipe section of the transport route, a uniform transport of the goods strand is achieved in the areas of the working on the Venturi principle transport nozzle. It has been shown that with a circular in cross-section training of subsequent to the corresponding circular nozzle inlet port transport pipe of the transport route certain light-weight textiles, the tendency u.a. be compressed by gravity in the lower tapered portion of the cylindrical transport tube, with the result that longitudinal marks and stripes can form in the continuous strand of goods. In a square or rectangular configuration of the nozzle inlet opening and the cross section of the subsequent transport pipe section of the product strand slides over at least a considerable part of its width on a flat surface on which it rests under the action of gravity. The width of this flat surface can be chosen appropriately in consideration of the textile material to be treated. In principle, also five- and polygonal cross-sectional shapes are possible, as long as the support surface for the overflowing product strand is wide enough to support the fabric strand over its width evenly without crowding it.

The nozzle gap is adjustable in the new device, so that, depending on the type of textile to be treated, the most favorable for the treatment nozzle gap width can be chosen. The device can thus be operated both in overflow operation as well as with high yarn strand speed, without requiring any nozzle parts replaced or other conversions would have to be made.

The straight nozzle elements surrounding the nozzle inlet opening give optimum inflow conditions for the transport medium into the nozzle gap and the nozzle inlet opening. The nozzle gap tapering towards the transport medium exit point from the nozzle gap achieves a significantly better efficiency than a transport nozzle of the inlet wall to the nozzle gap is limited by parallel side walls. This conical design avoids steel necking as well as the occasional cavitation phenomena occasionally observed in conventional nozzles in hydraulic operation. These cavitation phenomena are due to the fact that zones with excessively high liquid velocity occur between mutually more or less parallel walls which laterally delimit the nozzle gap, triggering cavitations.

By the above-mentioned possibility of independent adjustment of the treatment intensity by appropriate adjustment of the nozzle gap intensive jet treatments and gentle overflow treatments without changing the nozzle for light and heavy textile goods can be performed without nozzle change.

The invention is suitable both for long-storage machines and short-storage machines. Your working on the Venturi principle transport nozzle assembly can be set up for operation with gaseous and / or liquid transport medium streams.

• Figur 1 eine Langspeichermaschine gemäß der Erfindung in schematischer Darstellung, in einer Seitenansicht mit hoch geschwenktem Behandlungsbehälter,
• Figur 2 die Langspeichermaschine nach Figur 1 in einer entsprechenden Seitenansicht mit abgesenktem Behandlungsbehälter,
• Figur 3 die Langspeichermaschine nach Figur 1 im Längsschnitt in einer Seitenansicht,
• Figur 4 die Langspeichermaschine nach Figur 3 im Ausschnitt in einer vergrößerten Seitenansicht unter Veranschaulichung der Warenstrangeinlaufseite des Speicherbereichs,
• Figur 5 die Langspeichermaschine nach Figur 3 im Ausschnitt in einer vergrößerten Seitenansicht unter Veranschaulichung der Warenstrangauslaufseite des Speicherbereichs,
• Figur 6 die Transportstrecke der Langspeichermaschine nach Figur 2 in einer Seitenansicht und in einem anderen Maßstab,
• Figur 7 die Transportstrecke nach Figur 6 in einer Draufsicht,
• Figur 8 den Warenstrangauslaufbogen der Transportstrecke nach Figur 6 in einer perspektivischen Teildarstellung und in einem anderen Maßstab,
• Figur 9 die Transportstrecke nach Figur 7 in einer Draufsicht unter Veranschaulichung des Schwenkbereichs des Transportrohrs,
• Figur 10 die Transportdüsenanordnung der Langspeichermaschine nach Figur 2 in einer perspektivischen Teildarstellung und in einem anderen Maßstab,
• Figur 11 die Transportdüsenanordnung nach Figur 10, in einem schematischen Längsschnitt der Linie XI-XI der Figur 10 in einer schematischen Seitenansicht,
• Figur 12 die Transportdüsenanordnung nach Figur 11 in einer anderen Ausführungsform und in einer entsprechenden Schnittdarstellung,
• Figur 13 die Transportdüsenanordnung nach Figur 11, geschnitten längs der Linie XIII-XIII der Figur 11 in einer teilperspektivischen Darstellung und im Ausschnitt, und
• Figur 14 eine Langspeichermaschine gemäß Figur 1 in einer teilweise aufgeschnittenen Draufsicht und in einer abgewandelten Ausführungsform als Mehrstrang-Maschine.

Further embodiments of the device according to the invention are the subject of dependent claims. Show it:

• FIG. 1 a long-storage machine according to the invention in a schematic representation, in a side view with a high-tilt treatment container,
• FIG. 2 the long-storage machine after FIG. 1 in a corresponding side view with lowered treatment tank,
• FIG. 3 the long-storage machine after FIG. 1 in a longitudinal section in a side view,
• FIG. 4 the long-storage machine after FIG. 3 in the section in an enlarged side view illustrating the Warenstrangeinlaufseite the storage area,
• FIG. 5 the long-storage machine after FIG. 3 in the section in an enlarged side view illustrating the goods strand outlet side of the storage area,
• FIG. 6 the transport route of the long-storage machine after FIG. 2 in a side view and on a different scale,
• FIG. 7 the transport route to FIG. 6 in a plan view,
• FIG. 8 the Warenstrangauslaufbogen the transport route after FIG. 6 in a partial perspective view and on a different scale,
• FIG. 9 the transport route to FIG. 7 in a plan view illustrating the pivoting range of the transport tube,
• FIG. 10 the transport nozzle assembly of the long-storage machine after FIG. 2 in a partial perspective view and on a different scale,
• FIG. 11 according to the transport nozzle arrangement FIG. 10 in a schematic longitudinal section of the line XI-XI the FIG. 10 in a schematic side view,
• FIG. 12 according to the transport nozzle arrangement FIG. 11 in another embodiment and in a corresponding sectional view,
• FIG. 13 according to the transport nozzle arrangement FIG. 11 , taken along the line XIII-XIII of FIG. 11 in a part-perspective view and in the section, and
• FIG. 14 a long-storage machine according to FIG. 1 in a partially cutaway plan view and in a modified embodiment as a multi-strand machine.

The in the FIGS. 1 to 3 illustrated long-storage machine is used for the treatment of rope-shaped textile product in the form of an endless strand of goods, which is at least during part of the treatment in circulation.

The machine has an elongated, substantially tubular treatment container 1, which consists of a longer cylindrical pipe section 2 and a shorter cylindrical pipe section 3 of the same diameter, which is connected via a wedge-shaped in the side intermediate pipe section 4 and ends with floors, for example, dumplings or Basket bottom sheets 5, 6 are closed. The releasably secured basket bottom 6 is provided with a leading into the container interior loading door 7. The axes of the two pipe sections 2, 3 include an obtuse angle of 165 degrees with each other. At its front end, the treatment tank 1 is supported by two, on opposite sides of the pipe section 3 fixed feet 8, which are pivotally mounted about a horizontal axis of rotation 9 pivotally mounted on fixed bearing blocks 10.

At the rear end of the treatment tank 1, a lifting device acting on the outside of the longer pipe section 2, which is schematically illustrated at 11, is provided, which operates with a lifting spindle (not shown) or likewise with lifting cylinders (not illustrated) and forms actuating means for the treatment tank 1. By means of the lifting device 11, the treatment tank 1 can be pivoted about its axis of rotation 9, so that the inclination of the treatment tank relative to the horizontal, for example between the position to FIG. 1 in which the short pipe section 3 is oriented approximately parallel to the horizontal and in the position FIG. 2 be changed, in which the adjoining the intermediate pipe section 4, substantially straight central portion 2a of the longer pipe section either aligned exactly parallel or with a slight tendency to tilt to the horizontal. Like from the FIGS. 1, 2 can be seen, a dished bottom 5 supporting end portion of the longer pipe section 2b of the longer pipe section 2 with respect to the subsequent pipe part 2a to a small axis angle of about 10 degrees to be pivoted upwards, so that when in the lowered position FIG. 2 standing treatment container in this liquid contained on the container bottom to a lowest point 12 in the region of the intermediate tube part 4 converges and can be deducted from this lowest point.

The inclination of the treatment tank 1 is adjustable by pivoting about the pivot axis 9 usually within a range of 6 degrees to 14 degrees, but other special, especially larger adjustment conceivable. In its respective tilt position of the treatment container 1 is locked by the adjusting means of the lifting device 11, which is indicated by detents 13. The adjustment of the inclination of the treatment tank 1 can also be made stepless.

In the treatment tank 1 are, as in particular from FIG. 3 to see a transport nozzle assembly 14, an adjoining transport path 15 and a trough-shaped or trough-shaped, elongated sliding floor 16 are arranged, which allow a in FIG. 4 . 5 to put in circulation at 17 schematically indicated endless strand of goods. The sucked by the transport nozzle assembly 14 goods strand passes through the transport path 15 to the fabric strand inlet side 18 ( FIG. 4 ) of a displayed at 19 indicated diced goods strand package storage section 210 of the treatment container 1, in which from the goods strand inlet side 18 to a goods strand outlet side 20 (FIG. FIG. 5 ) of the abgeabafelte goods string package 19 receiving sliding bottom 16 extends.

The sliding bottom 16 extends in the treatment tank 1 at a distance above the underlying container wall 21 and is firmly supported on mounted on the container wall holders 22. In a change in the inclination of the treatment container by pivoting about the axis of rotation 9 and thus the inclination of the sliding floor 16 relative to the horizontal is changed accordingly. Alternatively, embodiments are conceivable in which the sliding floor 16 is supported in the treatment tank 1 on holders 22 which are adjustable in height and thus allow to change the inclination of the sliding floor 16 relative to the container wall 21, while the treatment tank 1 itself once set inclination maintains.

The on his the continuous goods string package 19 facing inner walls opposite the fabric strand package friction trained, for example, coated with Teflon or running with special sliding elements or rollers trough-shaped sliding floor 16 is double-walled with a liquid-impermeable outer wall 23 and a spaced therefrom inner wall 24 formed in a each from the goods strand inlet side 18 outgoing area 24a and in a leading to the goods strand outlet side 20 region 24b each perforated and liquid impermeable in an intermediate wall portion 24c. The perforated areas 24a, 24b are in FIG. 3 each underlaid with black paint. At their ends are liquid discharge openings 25 (FIG. FIGS. 4 . 5 ), which are closed by closing flaps 26, which can optionally be opened to pass through the perforated inner wall portions 24a, 24b treatment liquid to drain into the treatment tank 1 can.

In the trough-shaped sliding bottom 16 opens a filling line 260, which allows the sliding bottom in a treatment container setting after FIG. 2 , in which the sliding bottom is oriented substantially horizontally and to fill with closed closure flaps 26 with treatment liquid. Finally, filled-in treatment liquid can be drained into the container interior via an emptying opening 27. The liquid passage through the discharge opening 27 is controlled by a closure member 28 which is operable by an externally controllable actuator 29.

The sliding bottom 16 is concave over its length of the goods string package 19 receiving length, preferably corresponding to a circular arc with a large radius (for example, 20 m) or curved according to a chain line. The emptying opening 27 is arranged at the lowest point of the sliding floor 16 when the sliding floor 16 is horizontally aligned. Subsequent to this concavely curved region of the sliding bottom 16 is on the Warenstrangeinlaufseite 18 and on the Warenstrangauslaufseite 20 at 16a and 16b highly curved, wherein the high curvature 16a on the Warenstrangeinlaufseite 18 extends into the region of the central axis of the treatment vessel. The adjoining edge of the side wall of the trough-shaped sliding floor 16 is indicated at 30.

The arranged in the treatment tank 1 above the sliding floor 16 transport path 15 has a transport tube 31, the details of which in particular from the FIGS. 6, 7 can be seen. Starting from a short straight pipe section 31a with a constant square Cross-section, which is connected to the transport nozzle assembly 14, the transport tube 31 in a long portion 31 b, a conical broadening of the flow channel formed by the transport tube, the cross-sectional shape is accordingly increasingly rectangular. At the transport nozzle assembly 14 remote from the end of the transport pipe section 31b is followed by a rectangular in cross section Warenstrangauslaufbogen 32, the details of FIG. 8 emerge. The Warenstrangauslaufbogen 32 extends over about 90 degrees and is formed in the region of its side walls and at least its radial outer wall with a perforation 33. He flows out in the FIG. 4 apparent manner in the sliding floor 16 on the Warenstrangeinlaufseite 18. Below the perforated Warenstrangauslaufbogens 32 is located in the sliding floor 16 a Warenstrangablagezone 330 ( FIG. 4 ), whose width corresponds approximately to the width of the sliding floor 16 and whose depth is only 150 to 200 mm. This storage zone 330 is towards the treatment container inside through an inner boundary wall 34 (FIG. FIG. 4 ), which is curved, extends across the width of the sliding floor 16 and extends down to a predetermined distance from the inner wall 24a of the sliding floor 16. The fabric strand storage zone 330 is therefore bounded on all four sides by walls, with the high arched portion 16a extending relatively close to the commodity strand discharge sheet 32 laterally. The pipe section 31a could also be formed with a constant rectangular or polygonal cross-section.

The feeding of the strand of material on the back of the fabric strand storage zone 330 over the height of about 150 to 200 mm issued, in cooperation with the boundary wall 34, the incoming into the sliding floor 16 strand 17 of a pulse, which causes the strand of goods at the beginning the storage section with layers superimposed folds is stored so that on the goods strand outlet side 20 of the goods strand 17 is always deducted from the uppermost layer 17a of the fabric strand package, as shown in FIG. 5 is illustrated. Like in the FIG. 4 . 5 indicated, the fabric strand stack 19 is constructed on the Warenstrangeinlaufseite 18 so that the later stored fabric comes to rest under the fold of the previously deposited fabric, ie the folds of the strand in the fabric strand package 19 are arranged inclined to the fabric strand inlet side 18 and in this remain fundamental situation when passing through the memory section. In this way, an excellent flow of goods is achieved, while the strand removal on the goods strand outlet side 20 there is no danger that form undesirable strand loops, etc.

Upon entry into the fabric strand storage zone 330 of the fabric strand 17 is tabulated over the width of the trough-shaped sliding floor 16 characterized in that the Warenstrangauslaufbogen 32 via the transport tube 31, a reciprocating smooth motion is granted. For this purpose, the transport tube, together with the transport nozzle assembly 14 is pivotally mounted about an axis of rotation 340 ( FIG. 5 . 9 ), which extends through a straight pipe socket 35 of the treatment agent supply line 470 to the transport nozzle assembly 14. The pipe socket 35 is mounted rotatably sealed at 36 in a mounted on the treatment tank 1 pivot bearing. The pivoting range of the transport tube 31 is off FIG. 9 to see where the side of the standing in a central position transport tube 31, the two end positions lying on both sides of this central position of the transport tube 31 are illustrated, while the pivoting range is indicated by an arrow 37.

Because of the relatively large length of the transport tube 31, the Warenstrangauslaufbogen 32 performs a uniform, approximately linear movement over the width of the storage area 330 in the product strand storage. As a result, a very gentle storage of the fabric strand is achieved in the storage area 330, which is particularly advantageous for very delicate textiles. This is in contrast to such prior art embodiments of lapping means in which a warp outfeed sheet is imparted a rotational movement about the axis of the hauler which results in a corresponding twisting of the continuous lump of goods which can cause difficulties in a number of delicate fabrics.

The reciprocating pivotal movement is the transport tube 31 by a mounted on the treatment tank 1 drive motor 38 (FIG. FIG. 3 ), which is coupled via a lever mechanism 39 such that the transport tube 31 is reciprocated at a uniform speed over its pivoting area 37.

The fact that the entire transport path 15 is arranged together with the transport nozzle assembly 14 within the treatment tank 1, there is the advantage that the transport tube 31 does not require pressure-resistant training and thus is relatively easy and inexpensive to produce. Like, for example FIG. 3 can be seen, the transport path 15 and the transport nozzle assembly 14 are formed with so small height dimensions that they can be removed through the open loading opening at 7 and reintroduced.

• Auf den Rohrabschnitt 31a ist eine zylindrische Gehäuseplatte 41 aufgesetzt, die an ihrem Umfang axial begrenzt verschieblich und durch Dichtungen 42 flüssigkeitsdicht abgedichtet in einem Gehäuseringflansch 43 eines Düsengehäuses 44 geführt ist. Der Ringflansch 43 weist eine Einlassöffnung 45 für Behandlungsflüssigkeit auf, die über einen Rohrbogen 460 der Behandlungsflüssigkeitszuführleitung 470 (Figur 5) in das Düsengehäuse 44 einströmen kann. In das Düsengehäuse 44 ragt der im Querschnitt quadratische Rohrabschnitt 31a, der im axialen Abstand von der Gehäuseplatte 41 randseitig mit vier geraden Düsenelementen 46 (Figur 11, 13) versehen ist. Jedes der Düsenelemente 46 ist im Wesentlichen halbzylinderförmig gebogen und erstreckt sich über die Länge einer Seitenwand des Rohrabschnitts 31a, wobei die vier Düsenelemente 46 an den Enden in der aus Figur 13 ersichtlichen Weise aneinander anstoßend miteinander verbunden sind. Damit ergibt sich eine allseitig durch Zylinderflächen geradlinig begrenzte Düseneinlassöffnung 47. Auf diese Düseneinlassöffnung 47 ist der in seinen Abmessungen entsprechend angepasste, im Querschnitt quadratische Auslassteil 48 eines in das Düsengehäuse 44 führenden und mit diesem flüssigkeitsdicht verbunden trichterförmigen Warenstrangeinlassbogens 49 ausgerichtet. Der Warenstrangeinlassbogen 49 weist eine im Wesentlichen rechteckige Warenstrangeinlassöffnung 50 auf, die ebenfalls von im Wesentlichen halbzylindrisch gebogenen Leitflächen 51 begrenzt ist, wie dies aus den Figuren 10, 11 zu ersehen ist.

The transport path 15 is connected to the over its length a constant square cross-section having pipe section 31a to a transport nozzle 40 of the transport nozzle assembly 15 connected, the exact structure in particular from the FIGS. 10 to 13 it can be seen:

• On the pipe section 31a, a cylindrical housing plate 41 is placed, which is limited axially displaceably on its circumference and liquid-tightly sealed by seals 42 in a Gehäuseringflansch 43 of a nozzle housing 44 is guided. The annular flange 43 has a treatment liquid inlet opening 45, which via a pipe bend 460 of the treatment liquid supply line 470 (FIG. FIG. 5 ) can flow into the nozzle housing 44. In the nozzle housing 44 of the square in cross-section pipe section 31a projects, the edge of the axial distance from the housing plate 41 with four straight nozzle elements 46 (FIG. FIG. 11 . 13 ) is provided. Each of the nozzle elements 46 is bent in a substantially semi-cylindrical shape and extends over the length of a side wall of the pipe section 31 a, wherein the four nozzle elements 46 at the ends in the FIG. 13 apparent manner abutting each other are connected. This results in a nozzle inlet opening 47 which is rectilinearly delimited by cylindrical surfaces. This nozzle inlet opening 47 is aligned with the square-shaped outlet part 48 of a funnel-shaped material inlet bend 49 which leads into the nozzle housing 44 and is connected to it in a liquid-tight manner. The fabric inlet sheet 49 has a substantially rectangular fabric inlet opening 50, which is also bounded by substantially semi-cylindrical bent guide surfaces 51, as shown in FIGS Figures 10 . 11 can be seen.

Between the nozzle inlet opening 47 surrounding, in cross section semi-cylindrical nozzle elements 46 and the outlet part 48, a nozzle gap 52 is limited over the supplied via the treatment liquid supply line 470 Treatment liquid enters the pipe section 31 a of the transport pipe 31. Due to the cylindrical shape of the nozzle elements 46 and the configuration of the product strand outlet opening of the outlet part 48 adapted to this shape, a substantially vortex-free introduction of the treatment liquid through the conical nozzle gap 52 into the nozzle inlet opening 47 is achieved. In contrast to the conditions with a more or less parallel surfaces limited or abrupt design of the nozzle gap largely laminar flow conditions are achieved here, which avoid even at high treatment temperatures cavitation or the like promotion of the strand of goods phenomena.

The passage width of the nozzle gap 52 is adjustable in that in the embodiment according to FIG. 11 the entire transport path 15 is axially adjusted in the direction of the arrow 53. For this purpose, at the transport nozzle 40, an adjusting mechanism 54 ( FIG. 10 ), which has a pivotally mounted on the annular flange 43 at 55, L-shaped adjusting lever 56 whose selected angular position is detected by notches 57. The adjusting lever 56 is pivotally connected to the pipe section 31a via a flap 58 forming part of an adjusting mechanism, such that a pivotal movement of the adjusting lever 56 about the pivot axis at 55 indicates an axial reciprocating movement of the pipe section 31a and thus of the whole Transport tube 31 causes.

The adjusting lever 56 can be actuated by hand or actuated by a control device via an actuator, not shown. It makes it possible to selectively change the nozzle gap 52 tapering towards the exit point from the nozzle housing 44. In this way, the intensity of the treatment of the ongoing Goods strand can be changed with the treatment liquid between a more intensive treatment (narrow nozzle gap) and a more gentle treatment (large nozzle gap).

In an alternative embodiment, the in FIG. 12 is shown, the nozzle housing 44 according to the arrow 53a for adjusting the nozzle gap 52 relative to the immovable in the axial direction of transport pipe 31 and thus the pipe section 31a, in Rohrachsrichtung back and forth be. The associated actuating mechanism is in FIG. 12 not further illustrated. He is basically similar to FIG. 10 shown, built. Incidentally, are with FIG. 11 the same or similar parts are denoted by the same reference numerals, so that in this respect a further explanation is unnecessary. The inlet opening 45 is arranged in the housing plate 41 in this case. Both in the embodiment according to FIG. 11 as well as those after FIG. 12 an anti-rotation between the housing plate 41 and the annular flange 43 is provided so that no rotation between the nozzle gap 52 delimiting parts 48 and 46, 31 a can take place.

• Bei bekannten Langspeichermaschinen werden die meisten Textilwaren mit einem verhältnismäßig langen Flottenverhältnis, wie etwa 1:8 bis 1:15 behandelt, was einen entsprechend hohen Aufwand an Energie, Chemikalien und reaktiven Farbstoffen bedingt.

The long-term storage machine described so far operates as follows:

• In known long-storage machines most textiles are treated with a relatively long liquor ratio, such as 1: 8 to 1:15, which requires a correspondingly high amount of energy, chemicals and reactive dyes.

In contrast, the hydraulic long-lasting machine described here is designed for the shortest possible liquor ratios, which are in the order of 1: 3 for synthetic and 1: 4 for cotton goods.

The product strand 17 to be treated is introduced in a customary manner when the treatment door 7 is open into the treatment container 1 designed as a pressure-resistant vessel and is sucked in by the transport nozzle assembly 14 through the fabric strand inlet bend 49. The transport nozzle arrangement 14 is acted upon with treatment liquid, which may optionally be conveyed via a discharge line 59 (FIG. FIG. 3 ) is sucked from the treatment tank with a arranged in one of the two feet 8 rotary feedthrough 90 with the axis of rotation 9 by a pump 60. The pump 60 supplies the treatment liquid via a heat exchanger 61 and a lint filter 62 to the liquor supply line 470 of the transport nozzle assembly 14. The pipe connection between the supply line 470 and the pressure side of the pump 60 via a arranged in one of the two feet 8 in the drawing ( FIG. 3 ) not shown rotary feedthrough with the axis of rotation 9, while the drain line 59 is connected to the suction side of the pump 60 via the rotary feedthrough 90. The treatment agent addition vessels and devices are not shown further.

After the ends of the strand are sewn together and after closing the loading door 7, the product strand 17 can be treated in the optionally pressurized treatment tank 1 with the treatment liquid brought to the required temperature. The long-storage machine makes it possible to operate the machine depending on the requirements of the textile to be treated in wet, semi-dry and dry operation.

The strand of goods is offset from the transport nozzle assembly 14 in circulation, through the transport path to the Warenstrangeinlaufseite 18 transported in the treatment container 1 and there introduced via the Warenstrangauslaufbogen 32 in the storage zone 330 in the trough-shaped sliding base 16, where it is stored in the storage section as a goods string package 19 and transported to the goods strand outlet side 20. Here he is again sucked, after passing through the so-called trigger height, in the transport nozzle assembly 14 again.

Behind the transport nozzle 40 of the transport nozzle assembly 14, the fabric strand first passes through the pipe section 31a of constant cross-section, the length of which is approximately five to ten times the width of the nozzle inlet opening 47. In this zone, the impulse of the treatment agent jet is transferred with high efficiency to the fabric of the product strand. The tensile forces generated by the jet of the treatment liquid act on the continuous strand of goods over a length of about 600 to 1000 mm, with the result that a very gentle treatment of the textile product can be achieved with lower tensile forces.

Subsequent to this intensive zone in the pipe section 31a, the transport pipe 31 widens conically in its pipe section 31b. In this pipe section, the remaining flow energy of the treatment medium is transferred to the strand of goods. At the same time, the textile product is opened by the conical extension to the outlet width of the transport channel. The intensive zone in the pipe section 31a and the conical extension in the pipe section 31b cause a very good pulling action of the product strand transport system on the goods strand. The low speed of the treatment liquid at the end of the transport route avoids impairments of the subsidized textile, which also contributes to the fact that the tensile forces be transmitted over a relatively long distance of the transport route to the strand of goods. The transport of the fabric in the transport tube 31 is floating. The transport path 15 is provided with a slope to bring the fabric to the upper position of the sliding floor 16 and the product slide formed by this. The cross-section of the transport tube 31 is rectangular, which has the advantage over a cylindrical tube that the textile product is not compressed on the tubesheet on which it rests, as is the case with a cylindrical tube.

After passing through the transport tube 31 of textile rope enters the arranged at the upper end of the transport tube 31 perforated rectangular Warenstrangauslaufbogen 32. Due to the centrifugal force and the residual pressure of the treatment agent is here a large part of the entrained by the strand processing agent separated from the strand of goods and enters the rear part of the treatment tank 1. With increasing strand speed, a disproportionately large amount of the treatment agent is separated from the strand of goods. The separate treatment agent injected from the Warenstrangauslaufbogen 32 against the adjacent walls in the rear part of the treatment container 1 and causes in this way a cleaning of these walls. The proportion of the treatment liquid thus separated is usually about 30 to 70%.

Below the perforated Warenstrangauslaufbogens 32 of the fabric strand 17 passes into the fabric strand storage zone 330. This is relatively narrow and causes already geschildeter manner a controlled storage of the fabric strand. Due to the special design of the walls and the boundary wall 34 of the fabric strand is rotated in the tray so that, as already mentioned, at the bottom End of the sliding floor 16 on the goods strand outlet side 20 of the fabric strand is deducted in each case from there to supreme fold 17a.

From the product strand package 19, which has been advanced on the slip sheet 16, still entrained treatment liquid is discharged through the perforation in the sliding bottom sections 24a, 24b and can be discharged into the treatment tank 1 when the flaps 26 are open. Thus, the treatment agent loading of the product strand is reduced to a very low value.

Along with the short take-off height of the fabric strand at the fabric strand outlet side 20, this low handling liquid load of the fabric strand also results in small tensile loads on the fabric strand on the way between the slide bottom and the transport nozzle assembly 14. Since the transport nozzle assembly 14 is not in the ascending part of the fabric strand circulation path, i.e. is then arranged on the sliding floor 16 and behind the Warenstrangeinlaufbogen 49 but in the continuation of the straight pipe section 31a of the transport path 14, resulting in very favorable circulation conditions for the fabric strand, which is treated very gently.

The fabric layer, ie the height of the bundle of goods 19 on the sliding floor 16 is usually between 10 and 15 cm. In this way, the prevailing at the lower end of the inclined sliding floor 16 compression pressure on the deepest lying fabric strand fold is relatively low. By the already described possibility of dripping the free treatment liquid remains only the remaining by capillary action and adhesion forces in the mesh or fabric gaps treatment liquid in the fabric. The far largest group of textiles can therefore with in the raised position FIG. 1 be treated stationary treatment container in which the sliding floor 16 has a corresponding inclination. As a result of the uniformly curved shape of the sliding floor 16, as already explained, the density of the bundle of goods remains relatively low over the entire transport path through the storage area and, in particular, in the lower area in the vicinity of the goods strand outlet side 20.

For a particular group of textile products (eg acetate), the compression of the bundle of goods on the sliding floor 16 is in the adjustment of the treatment container after FIG. 1 already too high, so that wrinkles or shrinkage or other surface disadvantages can form. For this group of products, the inclination of the treatment tank 1 to the position after FIG. 2 can be reduced, so that the trough-shaped sliding floor 16 is filled with treatment agent and the fabric is treated floating therein. The space under the sliding floor 16 remains charged with gas / air-vapor mixture below the perforated wall 24a, b because of the wall 23 acting as a float collector. Thus, the liquor ratio is significantly shorter than in conventional systems even with this mode of operation. Incidentally, the inclination of the treatment tank 1 may be selected according to the friction coefficients resulting from the various textile materials. At approximately horizontal trough-shaped sliding floor 16 accordingly FIG. 2 In this treatment, the treatment agent outlet through the flaps 26 and the drain valve 27 is closed. The portion of the treatment liquid flowing through the fabric strand outlet sheet 32 in the sliding bottom 16 flows with the fabric strand package to the fabric strand outlet side 20, where it passes over the raised edge 16b of the sliding floor 16 into the treatment tank overflows.

Of course, all the functions of the new long-life storage machines, including the adjustment of the nozzle gap 52, can be automatically controlled by a control unit. This is advantageous for contract dyeing, which allows the new long-life storage machine to treat in a wide range almost all practically occurring groups and areas of different textiles.

For light-weight textiles, the nominal load weights for a long-life storage machine are generally not reached. In order to achieve the nominal treatment weight and to keep the product strand circulation time within acceptable limits, the machine may be equipped with a plurality of transport tubes 31. Here, a transport pipe 31, as described above, equipped with a transport nozzle 40 with adjustable nozzle gap 52, while the other transport tubes 31 may be dimensioned for lighter textiles, where appropriate, without adjustment, but this is not mandatory. An embodiment of this kind is in FIG. 14 illustrated. With the previously based on the FIGS. 1 to 4 embodiment described the same parts are provided with the same reference numerals and not explained again.

The new long-storage machine has been described above as a hydraulic machine, in which the transport of the fabric strand 17 is carried out exclusively by the treatment liquid and the transport nozzle arrangement is designed accordingly. Basically, however, the principle of the machine can also be applied to long-storage machines that operate pneumatically and / or mixed pneumatically / hydraulically. In these cases, the transport nozzle assembly 14 includes transport nozzle means which either can be acted upon with a transport gas and / or both with a transport gas and with a transport liquid, wherein the transport gas treatment agent in a suitable form, for example, atomized, are added, as is known per se.

A device for the treatment of rope-shaped textile goods in the form of an endless strand of goods, which is circulated at least during a part of the treatment, has a closable treatment container 1 and a transport nozzle arrangement 14 which can be acted upon by a transport medium flow. The transport nozzle assembly includes a transport nozzle 40 with a square rectilinear nozzle inlet opening 47 and a suitably adapted in its dimensions, in cross-section angular outlet part 48 for the strand of goods, between which a nozzle gap for the transport medium is limited. The nozzle gap 52 is adjustable and bounded all the way by straight nozzle elements 46 which have a substantially part-cylindrical cross-sectional shape.

Claims (15)

1. Device for treating strand-like textile fabric in the form of an endless fabric web which is set in circulation at least during part of the treatment, with

   - a closable treatment container (1),

   - a transport nozzle arrangement (14) which can be loaded with a transport medium flow,

   - a transport line (15) adjoining the transport nozzle arrangement and opening onto an inlet side (18) of the fabric web in a buffer portion (21) of the treatment container which receives a folded packet (15) of fabric web,
   characterised in that

   - the transport nozzle arrangement comprises a transport nozzle (40) with an angular, rectilinearly delimited nozzle inlet opening (47) and an outlet part (48) of angular cross-section with correspondingly adapted dimensions for the fabric web, between which a nozzle gap is defined, surrounding the nozzle inlet opening (47), for the transport medium,

   - the nozzle gap (52) is adjustable, and

   - on at least one side, the nozzle gap (52) is delimited all round by straight nozzle elements (46) on all sides which have a substantially partly cylindrical cross-sectional form.
2. Device according to claim 1, characterised in that the nozzle gap (52) is formed tapering in the flow direction.
3. Device according to claim 1 or 2, characterised in that the nozzle inlet opening (47) is rectangular.
4. Device according to claim 1 or 2, characterised in that the nozzle inlet opening (47) is square.
5. Device according to claim 3, characterised in that the outlet part (48) has a rectangular cross-section.
6. Device according to claim 4, characterised in that the outlet part (48) has a square cross-section.
7. Device according to any of the preceding claims, characterised in that the nozzle inlet opening (47) is formed on a tube portion (31a) protruding into a nozzle housing (44) and comprising the nozzle elements (46).
8. Device according to any of the preceding claims, characterised in that the nozzle elements (46) are connected together at their ends.
9. Device according to any of the preceding claims, characterised in that the nozzle inlet opening (47) is formed on a part (31a) connected to the transport line (15) and mounted moveably relative to the outlet part (48) for adjustment of the nozzle gap (52).
10. Device according to any of claims 1 to 8, characterised in that the outlet part (48) is mounted moveably relative to the nozzle inlet opening (47) for adjustment of the nozzle gap (52).
11. Device according to claim 10, characterised in that the outlet part (48) is received at least partially in a nozzle housing (44), and the nozzle housing (44) is moveable together with the outlet part.
12. Device according to any of the preceding claims, characterised in that the outlet part (48) is secured against twisting relative to the nozzle opening (47).
13. Device according to any of the preceding claims, characterised in that a tube portion (31a) of the transport line (14) is connected to the transport nozzle (40) and has an angular cross-sectional form corresponding to the nozzle opening (47) and has a cross-section which is constant over at least part of its length.
14. Device according to claim 13, characterised in that a laterally expanding tube portion (31a) of a transport tube (31) of the transport line (14) adjoins the tube portion (31a) in the flow direction of the transport medium.
15. Device according to claim 13 or 14, characterised in that the transport nozzle (40) is mounted pivotably about an axis (340).

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