WO2020043293A1 - Loom assembly for loom air conditioning - Google Patents

Abstract

The invention relates to a loom assembly (2), comprising a loom (4) intended to receive a warp (9) and comprising an air outlet (40) arranged above the loom (4) and an air inlet (50), which are connected to an air-processing device (5). The air outlet (40) is designed in such a way that supply air produced by means of the air conditioning device (6) exits through the air outlet (40) as an air stream (62) toward the warp (9) and hits a first region (72) of the loom (4), with respect to the delivery direction (L), in order to air condition the loom (4). The air inlet (50) is designed in such a way that the air stream (62), dust-laden and heated because of the loom (4), is suctioned through the air inlet (50), the air inlet (50) being arranged above the loom (4) and being designed in such a way that the air stream, dust-laden and heated because of the loom (4), is suctioned in a second region (74) of the loom (4) which, with respect to the delivery direction (L), is downstream of the first region (72).

Description

Weaving machine arrangement for weaving machine air conditioning

The present invention relates to a weaving machine arrangement according to the preamble of claim 1 for weaving machine air conditioning.

A device and a method for weaving machine air conditioning are disclosed in document WO 93/06281. In one exemplary embodiment, an air outlet is arranged above a weaving machine having a warp and at a distance from the warp, and is supplied with conditioned air via a line from an air-conditioning center. The air outlet has an outlet opening directed downward against the warp and extends horizontally over the entire working width of the weaving machine, above a rear compartment of the warp, which is formed by the area of the warp between a warp stop and shafts of the weaving machine. Furthermore, the air outlet is formed by a box which is closed on all sides except for the underside which forms the outlet opening and faces the warp. A sheet metal arrangement arranged in the box ensures a distribution of the conditioned air into the box and the formation of a piston-like displacement flow directed towards the warp as it passes through the outlet opening. In operation, the climate control center delivers conditioned air which emerges from the outlet opening as a piston-like displacement flow directed in the direction transverse to the warp. The displacement flow strikes the warp threads forming the rear compartment. A first partial flow flows along the warp threads against their delivery direction and a second partial flow flows between them the warp threads down into the loom. A floor opening is provided below the weaving machine, through which dust-laden, heated air is discharged.

The first and the second partial flow in the vicinity of the warp create a climate suitable for processing, in that heat and dust are removed and the relative humidity is kept at a predetermined value.

Without a floor opening underneath the weaving machine for the removal of air, dust and fiber fly would accumulate in the weaving machine, which would require regular cleaning within the weaving machine. However, opening the floor means additional costs for the construction of the weaving room and the installation of a weaving machine and requires that the floor opening in the building is technically feasible. After that, the loom that has been set up can only be moved slightly with respect to the bottom opening, so that a different placement of the loom in a production line is restricted.

Document DE 10 2011 053 719 A1 discloses a weaving machine arrangement with a weaving machine and a hood-like cover having a suction connection. The interior of the cover can be suppressed via the suction connection to enable dust to be extracted from the weaving machine. The cover is designed with a sound-absorbing design, extends specifically above the shaft package and only partially covers it. The shaft package thus remains partially visible even when the cover is designed without a window. Furthermore, the cover is movable relative to the weaving machine, in particular can be lifted and / or pivoted relative to the weaving machine. Air conditioning of the weaving machine is not dealt with in this context, however, because this arrangement only extends above the shaft package and thus only aims at the extraction of dust and noise reduction in this area.

The object of the present invention is therefore to provide a weaving machine arrangement for weaving machine air conditioning, which permits optimized air conditioning and a flexible positioning of the weaving machine.

According to the invention, this object is achieved by a

Loom arrangement for weaving machine air conditioning solved according to claim 1. Preferred embodiments of the invention are given in the dependent claims.

The invention relates to a weaving machine arrangement with a weaving machine intended for receiving a warp, which comprises a unwinding device for the delivery of rolled-up warp threads and a fabric tree for receiving a finished fabric, as well as shafts. The unwinding device can be designed, for example, as a warp beam or as a creel (also known in the art as "creels"). The weaving machine determines a fabric path along which the warp threads and the finished fabric run from the unwinding device to the fabric tree. Furthermore, the delivery of the warp threads forming the warp from the unwinding device to the fabric tree defines a direction of delivery of the warp threads.

In a known manner, the weaving machine preferably comprises, as seen in the direction of delivery, a match beam arranged downstream of the unwinding device, via which the warp threads are deflected from the unwinding device into a weaving plane and in the Direction of delivery to a warp thread monitor. After passing through the warp thread monitor, the warp threads are, as is known, passed through shafts and further through the reed. The warp guard is thus between the match tree and the shafts. The warp threads or the finished fabric then reach the goods tree via the goods take-off tree arranged upstream of the goods tree, as seen in the direction of delivery.

The loom arrangement further comprises an air outlet arranged above the loom, preferably extending at right angles to the direction of delivery and horizontally, and an air inlet. The air outlet and the air inlet are designed to be connected to an air treatment device.

The air outlet arranged at a distance above the product path is designed such that conditioned supply air generated by the air treatment device exits as an air stream through the air outlet in the direction of the warp and onto a first area of the weaving machine for air conditioning, as seen in the direction of delivery, upstream of the shafts the weaving machine hits. The first area is essentially the area of the goods path on which the air flow for conditioning the warp threads occurs. The air outlet is preferably located above the first area. When it hits the warp, a part of the air flow is diverted along the warp threads and flows on the one hand in the direction of the match and further on the warp beam and on the other hand in the direction of the shafts, while a part between the warp threads penetrates into a so-called back pocket and into the weaving machine, and with Dust is loaded and heated. In the context of the present invention, the term dust is used for the sake of simplicity to refer to dust and / or fiber fly as well as air pollution caused by the operation of the weaving machine.

In the context of this invention, the term air conditioning is to be understood as the conditioning of the warp threads by the air flow and the removal of the heat and dust which are generated by the operation of the weaving machine.

Conditioned supply air is known to have a predetermined temperature and a predetermined humidity. Optimized air conditioning therefore includes effective conditioning of the warp, i.e. reaching the desired moisture level of the warp threads with efficient heat and dust removal. The conditioned supply air is preferably cooled in order to bring about additional cooling of the weaving machine.

The air treatment device comprises an air conditioning device for conditioning the supply air and for removing the air flow laden with dust and heat, which is extracted through the air inlet, i.e. the exhaust air. The air treatment device can also include a filter system for filtering the exhaust air.

According to the invention, the air inlet is arranged above the weaving machine and is designed in such a way that the heated air flow dust-laden by the weaving machine is sucked off in a second area of the weaving machine, seen in the direction of delivery, downstream of the first area. The air inlet is preferably located above the second area. The terms air outlet and air inlet refer to the direction of the air flow with respect to the air conditioning device. The air outlet and the air inlet are namely intended to allow supply air to emerge from the air treatment device as an air stream or to allow the heated, dust-laden air stream to enter as exhaust air.

The invention includes the knowledge that cooled conditioned supply air naturally flows downward in principle, so that this cooled conditioned supply air is supplied as an air flow through the air outlet in the direction of the warp, i.e. down, takes advantage of this natural flow.

The invention further includes the knowledge that the air flow heated by the weaving machine flows naturally upwards in principle, so that a discharge of this heated air flow upwards advantageously uses this natural flow. In contrast, the heated air flow is discharged downward through a bottom opening arranged below the weaving machine, as is disclosed in the prior art, against this natural flow with additional energy consumption.

In a preferred embodiment, the air outlet extends at right angles to the direction of delivery, horizontally over the entire width of the goods path, preferably at a distance from the goods path. This arrangement enables the weaving chain to be evenly conditioned with the air flow when the weaving machine is in operation.

The air outlet can preferably extend over the entire width of the weaving machine, so that the edge region of the weaving chain is homogeneous in the air flow irrespective of edge effects is conditioned. Since heat is generated in particular in edge areas of the weaving machine, in which drives are arranged, for example, this arrangement has the further advantage that heat is removed from the weaving machine more efficiently.

Depending on the humidity of the environment and the properties of the warp threads, conditioning of the warp threads in the area of the match tree may be necessary. In a preferred embodiment, the first area consequently begins at the loom of the weaving machine. The first area thus extends from the match tree of the weaving machine to at least approximately half, preferably at least approximately three quarters, of the distance between a warp thread monitor of the weaving machine and the shafts, downstream of the warp thread monitor and in the direction of delivery, more preferably to a few centimeters upstream of the shafts. The first area thus at least partially includes the back pocket of the weaving chain.

The spatial extent of the first area, as seen in the direction of delivery, determines in part the moisture that is emitted to the warp threads, and in part the proportion of the air flow that is guided between the warp threads and into the rear compartment for cooling the weaving machine and for removing the dust .

The spatial extent of the first area also partially determines the design of the air flow in the weaving machine. The air conditioning of the weaving machine in selected areas can thus be influenced by the design of the air flow, as will be explained below. When the first region extends from the match tree to at least approximately in the middle between the warp thread monitor and the shafts, there is a flow upward of the heated airflow dust-laden by the weaving machine Viewed in the direction of delivery, after the first area and in front of the shafts, and possibly further in the direction of delivery, between the shafts and the goods take-off tree. This also applies if the first region extends from the match tree to at least approximately three quarters of the distance between the warp thread monitor and the stems, downstream of the warp thread monitor and as seen in the direction of delivery. In this case, however, the heated air flow dust-laden by the weaving machine after the first region will flow less upstream of the shafts and relatively more between the shafts and the goods take-off tree.

On the other hand, if the first area extends up to a few centimeters upstream of the shafts, the heated air flow dust-laden by the weaving machine after the first area is essentially only after the shafts, i.e. between the shafts and the goods take-off tree, flow upwards.

In a preferred embodiment, the second region adjoins the first region, preferably directly to the first region, encompasses the shafts and extends at least up to a rest position of a weaving reed of the weaving machine, particularly preferably up to the region of the fabric path, in the finished fabric is.

In a known manner, the reed is located between the shafts and the take-off tree. After each entry of a weft thread between the warp threads (also known as "weft" in the specialist world), the reed is moved in the direction of the goods take-off tree. When the reed reaches its working position, it presses the newly inserted weft thread onto the finished fabric. The rest position of the reed denotes its position in which it is set back in the direction of the shafts as far as its working position is concerned.

However, it is also possible for the second region to extend to the goods take-off tree of the weaving machine. Since dust is generated by the movement of the shafts, the second region advantageously includes the shafts in order to be able to discharge the heated air flow laden with dust on both sides of the shafts.

The extension of the second area to the resting position of the reed consequently ensures that a substantial part of the air flow is discharged upwards. The heat generated by the operation of the weaving machine and the extraction of the dust in the weaving machine are thus carried out efficiently.

If the second area extends to the area of the goods path in which finished fabric is present or to the goods take-off tree, the air flow can be at least approximately completely removed, because the finished fabric at least almost completely stops the flow of air outside the weaving machine and redirects the airflow upwards. Extending the second area only to the beginning of the area of the goods path, in which finished fabric is present, has the further advantage, however, that the length of the second area, viewed in the direction of delivery, is shorter, so that the air inlet is narrower and a higher speed of the air flow can be reached in the second area. As a result, heavier dust particles can be sucked in and the suction of the dust in the weaving machine is further optimized. The second region preferably adjoins the first region directly.

In a preferred embodiment, the air outlet is designed in such a way that the air flow exiting through the air outlet is either laminar or turbulent. The air outlet can particularly preferably be set up in such a way that the air flow exiting through the air outlet is a laminar or a turbulent air flow. The generation of a laminar air flow for a weaving machine is known to the person skilled in the art. For example, international application WO 93/06281 discloses a device for generating a piston-like displacement flow, the outlet speed of the supply air from the air outlet being low, in particular being a maximum of 0.9 m / s. A turbulent air flow can be generated, for example, with or without induction flow through slot, perforated plate or swirl outlets. The establishment of an air outlet for generating a laminar or a turbulent air flow is possible, for example, via interchangeable inserts arranged in the air outlet. The choice between a laminar or a turbulent air flow enables the climate control of the weaving machine to be adapted to the weaving material. The laminar air flow is preferably used when an efficient transfer of moisture to the weaving material, i.e. an effective conditioning of the warp threads, is desired during the operation of the weaving machine. This transfer takes place particularly effectively when the air flow exits at a low speed. This can be necessary, for example, for a woven material such as cotton. In contrast, a turbulent flow is preferred when less moisture has to be transferred to the weaving material.

In a preferred embodiment, a shut-off element is assigned to the air outlet, which is intended for the Shut off or release the air outlet if necessary and regulate the air flow. It is also possible to assign several shut-off devices to the air outlet, for example in order to be able to shut off or release only areas of the air outlet. The shut-off device mainly serves to shut off the air outlet, for example when the weaving machine is at a standstill, so that excessive moisture in the weaving machine is avoided, which can lead to corrosion and excessive moisture in the weaving material. When the weaving machine is switched off and on, the shut-off device can also serve to shut off or open the air outlet. This mode of operation helps to save energy when the weaving machine arrangement is not in operation.

In a preferred embodiment, the air outlet is connected to the air treatment device via an inlet air line arranged above the weaving machine and the air inlet is connected via an exhaust air line arranged above the weaving machine. The supply air line and the exhaust air line are connected to the air treatment device and can be formed in a known manner from channels which are attached to the ceiling of the weaving room, possibly via a hanging device, or which are carried by a support structure arranged above and at a distance from the weaving machine. The supply air line and the exhaust air line preferably run above the weaving machine at right angles to the direction of delivery.

The air outlet and the air inlet can likewise be connected to the supply air line or to the exhaust air line via a supply air branch line or an exhaust air branch line. Thus, the air outlet and the air inlet can be set up locally regardless of the course of the supply air line or the exhaust air line. The air treatment device is preferably set such that the air flow emerging from the air outlet corresponds to the air flow extracted via the air inlet. This ensures that the heated air flow dust-laden by the weaving machine is almost completely exhausted and is not distributed around the weaving machine and negatively influences the surroundings of the weaving machine.

In a preferred embodiment, the air inlet extends at right angles to the direction of delivery, horizontally over the entire width of the goods path, preferably at a distance from the goods path. This arrangement enables a uniform discharge of the heated air flow that is dust-laden by the weaving machine transversely to the direction of delivery when the weaving machine is in operation. This helps to create an air flow in the weaving machine that is as turbulent as possible, so that the air flow and the dust from the weaving machine can be almost completely removed and thus do not remain trapped in areas of the weaving machine. The air inlet preferably extends over the entire width of the weaving machine, so that the air flow in the edge region of the warp is discharged homogeneously in the air flow regardless of edge effects. Furthermore, heat and dust can also be dissipated in the side area of the weaving machine in this way.

In a preferred embodiment, the air inlet has a hood-shaped cover, the opening of which faces the weaving machine and which cover at least partially covers the second region. The hood-shaped cover allows a space to be delimited by its shape and thus an effective discharge of the air flow through the air inlet. In this way, however, the removal of air from the surroundings of the weaving machine and the removal of the air flow that emerges from the air outlet is the most effective The warp has not yet been reduced. Furthermore, the use of a hood-shaped cover increases the proportion of the heated, discharged air flow which is dust-laden by the weaving machine.

Furthermore, the hood-shaped cover advantageously forms sound insulation, so that the propagation of the noise generated below the hood-shaped cover during operation of the weaving machine is damped. As a result, the noise level in the weaving room is lower.

The cover can be at least partially removable and / or pivotable and / or adjustable in height about a horizontal pivot axis extending transversely to the delivery direction. Depending on the boundary conditions defined by the weaving machine and its surroundings, the person skilled in the art can consider a combination of these different features. The design of the cover can also be designed depending on the required access to components of the weaving machine, for example for maintenance of the weaving machine or for changing the shafts, or to areas of the weaving machine, for example for checking the quality of the warp threads or the finished fabric. If necessary, the free space around the machine can also be taken into account when designing the cover. To adjust the height of the cover, for example, vertical rails can be provided to the side of the cover, via which the cover is moved manually or motor-driven or pneumatically downwards or upwards. The entire cover is preferably adjustable in height. However, the cover can also be formed such that only parts of the cover can be adjusted in height. A height-adjustable cover with sufficient free space above the weaving machine enables easy access to the weaving machine. One by one across the delivery direction and horizontally extending pivot axis pivotable cover is an advantageous arrangement if there is free space on the side of the weaving machine. It is also possible to design the air flow in the area of the weaving machine by swiveling or adjusting it at the height of the cover, for example in order to reduce the turbulence of the air flow in the weaving machine, so that the removal of the air flow from the weaving machine is optimized.

In a preferred embodiment, the cover has, as seen in the delivery direction, a first leg running upstream of the shafts and a second leg running downstream of the shafts, and preferably, seen in the delivery direction, a left and a right one, for closing a space delimited by it Side panel on. Preferably, the two legs and the side parts are full-surface, i.e. without breakthroughs. The side parts serve to improve the limitation of the cover in order to achieve an optimal discharge of the air flow through the air inlet.

The first and the second leg can be made of plastic. They are preferably transparent at least in some areas, particularly preferably almost completely transparent over the entire surface, in order to allow control of the operation of the weaving machine without its removal. The first and the second leg can also be made of metal and have closable openings. The first and the second leg are preferably impermeable to air, in order to allow an optimal discharge of the air flow.

It is also possible for the first and the second leg to be at least partially covered with a sound-absorbing lining, inside and / or outside, to further improve the sound insulation through the cover.

In a preferred embodiment, to form an almost completely continuous surface, the second leg extends downward at least approximately to the product path. The second leg can extend so far down that it does not collide with the warp threads. A possible flow of air from the surroundings of the weaving machine through a gap between the second leg and the product path is thus almost completely avoided. The second leg preferably extends at least approximately to the fabric tree in order to be able to also remove dust in the area of the finished fabric. The second leg particularly preferably extends to a region of the product path in which finished fabric is present, so that the formation of an almost completely continuous surface is optimized.

In a preferred embodiment, the first leg at least partially overlaps the section of the shafts located above the product path in the vertical direction. Thus, the cover partially covers the shafts and consequently the direct removal of the air stream emerging from the air outlet is reduced without having reached the warp. Alternatively, the first leg can extend at least approximately to the product path in order to almost completely avoid the abovementioned direct removal and thus optimally remove the heated air flow that is dust-laden by the weaving machine

In a preferred embodiment, the first and the second leg are pivotable about the pivot axis, preferably pivotable independently of one another, for access to one or other area of the weaving machine, but without having to remove the entire cover.

In a preferred embodiment, the first and the second leg can be rolled, preferably independently of one another, in the manner of a roller blind, in order to allow access to one or the other area of the weaving machine, but without having to remove the entire cover. The first and the second leg can be rolled up and lowered manually or via an electric drive. This arrangement can advantageously be used on the side of the weaving machine and above the weaving machine when space is limited.

In a preferred embodiment, the first and the second leg are foldable or bendable, whereby they are made of a flexible material.

In a preferred embodiment, the first and the second leg can be folded. The first and the second leg are preferably each formed in two or more parts, the leg parts being connected via hinges and the leg parts thus being able to be folded up onto one another or opened downward. This embodiment can be chosen where there is limited space near the cover and to reduce the manufacturing costs.

The invention further relates to a weaving machine arrangement according to one of the previously disclosed embodiments with a weaving machine accessory, the weaving machine arrangement comprising a further air outlet arranged above the weaving machine accessories and a further air inlet arranged above the weaving machine accessories, which are intended to be connected to the air conditioning device. The further air outlet is designed in such a way that supply air generated by the air treatment device exits through the further air outlet as a further air flow in the direction of the weaving machine accessories and impinges on the weaving machine accessories for its air conditioning. The further air outlet is preferably arranged at a distance above the weaving machine accessories. Furthermore, the further air inlet is designed in such a way that the heated further air flow dust-laden by the weaving machine accessories is sucked off through the further air inlet.

In a preferred embodiment, the weaving machine accessories can be a weft preparation device, which comprises a thread storage device, for example a creel, arranged below the further outlet, and a weft storage device, which has a weft thread entry and is arranged below the further inlet.

In operation, the air conditioning device generates conditioned supply air, which through the further air outlet than the further air flow in the direction of the weaving machine accessories, i.e. of the creel, exits and strikes the creel. As already explained above, this arrangement advantageously uses the natural flow of the cooled conditioned supply air, which naturally flows downwards.

When it hits the creel, moisture is transferred to the weft threads wound on the bobbins, which are consequently conditioned. Furthermore, the further air flow absorbs dust and heat from the creel.

The further air flow continues to the weft thread storage device, where it operates is further heated and loaded with dust. The further air flow is then extracted through the air inlet and discharged as exhaust air. The discharge advantageously uses the natural upward flow of the heated further air flow, so that the energy consumption can be reduced.

Such an arrangement also enables optimization of the costs for the construction of the air treatment device, since a further air outlet and a further air inlet can easily be installed in the supply air line and exhaust air line already provided for the weaving machine.

The further air inlet can be positioned with respect to the weaving machine in such a way that the heated air flow which is laden with dust from the weaving machine and which emerges laterally from the weaving machine, in particular from the lower region of the weaving machine, can also be discharged via the further air inlet. This ensures that the dust-laden, heated air flow is not distributed around the weaving machine and negatively influences the surroundings of the weaving machine.

The further air outlet and the further air inlet can be designed in the same way as the air outlet or air inlet disclosed above and have the same variants.

In a preferred embodiment, the further air outlet is assigned a housing of elongated shape with a rectangular cross section that is constant over its longitudinal extent. The housing is arranged at a distance above the creel and closed on all sides with the exception of the underside forming the supply air outlet and facing the creel. The side of the housing facing away from the creel is on the supply air line connected. If necessary, the side of the housing facing away from the creel can be connected to the supply air line via a further branch line, so that the further air outlet can be set up locally regardless of the course of the supply air line. The further air outlet extends over the creel in such a way that the weft threads wound on the coils are conditioned.

Furthermore, the further air inlet has a hood-shaped further cover, the opening of which faces the weft thread storage device. The further cover has, for the lateral closing of a space delimited by it, seen in the delivery direction, a first further leg and a second further leg, which preferably overlaps the weft thread storage device of the weft thread storage device in the vertical direction at least partially, preferably completely. As a result, the direct removal of the further air flow emerging from the further air outlet without having reached the weft thread stores is reduced or almost completely avoided.

On the side of the further cover facing away from the weaving machine, the further cover has a further side part in order to optimize the lateral closing of the space delimited by it and to achieve an optimal removal of the further air flow through the further air inlet. The first further and the second further leg and the further side part are preferably transparent at least in regions, particularly preferably over the entire surface.

The first further leg and / or the further side part can have small openings which allow the passage of the Weft threads from the creel to

Enable weft storage device.

The weft thread insertion between the weft thread stores and the weaving machine is further preferably covered by a hood-shaped, preferably transparent, intermediate cover, the opening of which is directed towards the bottom. On the side facing the weft thread stores, the intermediate cover adjoins the other cover in alignment. On its side facing away from the weft thread stores, the intermediate cover extends at least partially to the right side part of the cover, i.e. to the side part of the cover facing the weft storage device, and the intermediate cover has a passage for the passage of the weft threads to the weaving machine. The intermediate cover serves to ensure the conditioning of the weft threads up to the weaving machine and, if necessary, to allow dust and heat to be removed in the area of the weft thread entry through the further air outlet.

The invention also relates to a weaving machine arrangement according to one of the embodiments disclosed above, with a floor of a building on which the weaving machine is arranged, the floor being free of an air inlet below the weaving machine. Because the floor does not have to have a floor opening, additional costs for the construction of the building can be avoided and no further conditions are required in this regard. Furthermore, the loom set up can be moved without restriction in connection with bottom openings, so that a different placement of the loom in a production line is simplified. For the sake of completeness, it should also be mentioned that the weaving machine arrangement according to the invention is usually arranged in one or more rows in a weaving room.

Further advantages and properties of the invention emerge from the following description of two exemplary embodiments, which is explained with reference to the accompanying figures.

It shows purely schematically:

Figure 1 is a side view of a loom arrangement with egg ner schematic representation of the air flow, the machine frame of the loom is not shown for the sake of clarity.

Fig. 2 in the same representation as Figure 1 from another embodiment of the weaving machine arrangement with a schematic representation of the air flow. and

3 shows the weaving machine arrangement according to FIG. 2 in view.

The weaving machine arrangement 2 shown in FIG. 1 comprises a weaving machine 4 which, in a manner known per se, has a unwinding device 8, here designed as a warp beam 8, for delivering the rolled up warp threads 12 and a warp beam 10 for receiving the finished fabric 11. The warp threads 12 and the finished fabric 11 run along a goods path 13 from the warp beam 8 to the warp beam 10, the delivery of the warp threads 12 forming a warp 9 from the warp beam 8 to the warp beam 10 defining a delivery direction L. The warp threads 12 are deflected by the warp beam 8 via a match beam 14 into a weaving plane 16 and are guided in the delivery direction L to a warp thread monitor 18. After passing through the warp thread monitor 18, the warp threads 12 enter Rear shed 19 of the warp 9. In connection therewith, the warp threads 12 are passed through eyes 20 of the strands 22, which strands are fastened to shafts 24, and the warp threads 12 enter a front shed 25 of the warp 9. The upstream of the shafts 24, in the delivery direction L, the rear compartment 19 lying down and the front compartment 25 lying downstream of the shafts 24, seen in the delivery direction L, form the shed 26. Furthermore, the warp threads 12 are guided through the reed 28. The warp threads 12 or the finished fabric 11 then leave the weaving plane 16 via the goods take-off tree 30 and reach the fabric tree 10, which receives the finished fabric 11.

The generally known machine frame of the weaving machine 4 is not shown for the sake of clarity.

The weaving machine arrangement 2 further comprises an air outlet 40, which is intended to be connected to an air treatment device 5 via a supply air line 42. A housing 44 of elongated shape with a rectangular cross section that is constant over its longitudinal extent is assigned to the air outlet 40. With the exception of the underside forming the supply air outlet 46 and facing the warp 9, the housing 44 is airtight on all sides. The supply air outlet 46 is closed in an air-permeable manner by a grille 48 and the side of the housing 44 facing away from the weaving machine is connected to the supply air line 42. The air outlet 40 extends at right angles to the delivery direction L over the width of the weaving machine 4 and is arranged above and at a distance from the weaving machine 4. Furthermore, a shut-off device 49 is assigned to the air outlet 40, which is intended to shut off or open the air outlet 40. Furthermore, the weaving machine arrangement 2 comprises an air inlet 50 which is connected to an air treatment device 5 via an exhaust air line 70. The air inlet 50 has a hood-shaped, transparent cover 52, the opening 54 of which lies below the loom 4. For the lateral closure of a space delimited by it, the cover 52 has a first leg 56 running upstream of the shafts 24 and a second leg 58 running downstream of the shafts 24.

The first leg 56 partially overlaps the section of the shafts 24 located above the product path 13 in the vertical direction.

The second leg 58 extends down to a few centimeters from the finished fabric 11 and, with the exception of a gap 67, forms an almost completely continuous surface together with the finished fabric 11 up to the fabric tree 10.

In the embodiment shown, the supply air line 42 and the exhaust air line 70 are arranged above the weaving machine, at right angles to the direction of delivery L and parallel to one another. Such an arrangement is favorable, for example if there is little space in height.

An exhaust air branch line 68 extends between the supply air line 42 and the exhaust air line 70 at right angles to the delivery direction L horizontally over the entire width of the weaving machine 4 and is connected to the air preparation device 5 via the exhaust air line 70.

The cover 52 comprises a section of the exhaust air stub 68, in which an air inlet opening 66 is trained. The gap-shaped air inlet opening 66 extends elongated over the entire width of the product path 13. The first and second legs 56 and 58 are each mounted at least approximately airtight on the exhaust air line 68 on both sides of the air inlet opening 66 and extend over the entire length of the air inlet opening 66 The first and the second leg 56 and 58 are formed in two parts and each comprise an elongated hinge 64 arranged parallel to the product path 13. The part of the first and second leg 56 and 58 facing the product path 13 can be pivoted via the hinge 64 and stored at least approximately airtight, and connected to the part of the first or second leg 56 or 58 facing away from the product path 13.

The air conditioning device 5 serves to air-condition the weaving machine 2 and comprises an air-conditioning device 6 for conditioning the supply air supplied to the weaving machine 4 and a filter system 7 for filtering the exhaust air discharged from the weaving machine 4.

During operation of the weaving machine arrangement 2, the air conditioning device 6 generates conditioned supply air, which is led via the supply air line 42 to the air outlet 40 and exits as an air flow 62 through the air outlet 40 in the direction of the warp 9. The air stream 62 impinges on a first region 72 of the weaving machine 4, as seen in the delivery direction L, upstream of the shafts 24. In the embodiment shown, the first region 72 extends from the match tree 14 to approximately a third of the distance between the warp thread monitor 18 and the shafts 24, seen in the delivery direction L, downstream of the warp thread monitor 18. The air outlet 40 is located above the first region 72. When the warp 9 strikes, part of the air flow 62 is deflected along the warp threads 12 and flows off on the one hand in the direction of the match tree 14 and further on the warp beam 8 and on the other hand in the direction of the shafts 24. The warp threads 12 are thus conditioned.

Another part of the air flow 62 flows between the warp threads 12 into the rear compartment 19, and partly penetrates down through this into the weaving machine 4 and is heated and loaded with dust.

The air flow 62 warmed by the weaving machine 4 naturally flows after the first area 72 upwards downstream and upstream of the shafts 24. This makes the air flow 62 synergistic with the flow created by the negative pressure prevailing in the interior of the cover 52 to a second area 74 the weaving machine 4 out. In this second area 74, the air flow 62 is sucked off as exhaust air through the air inlet opening 66 and conducted into the exhaust air line 70 via the exhaust air branch line 68. This removes the heat and dust from the weaving machine 4.

The second area 74 is, seen in the delivery direction L, downstream of the first area 72 and is covered by the cover 52. The air stream 62 is thus guided to the air inlet 50 and extracted as exhaust air 76.

According to the invention, the floor 78 on which the weaving machine 4 is arranged is free of an air inlet below the weaving machine 4.

A second embodiment of the weaving machine arrangement 2 is shown in FIG. 2 and is basically the same as that Embodiment formed in Fig. 1, therefore only the differences are mainly described below. The same reference numbers are used below for parts with the same effect as in the first embodiment.

2 shows an alternative design of the supply air line 42 and the exhaust air line 70, which are arranged above the weaving machine, at right angles to the delivery direction L and in parallel one above the other. Such an arrangement is advantageous if, for example, there is enough space in height.

The air outlet 40 is configured in the same way as in the embodiment in FIG. 1.

In this embodiment, cover 52 includes an inlet housing 96, which has an elongated, funnel-shaped shape with a rectangular cross-section. The inlet housing 96 is closed on all sides, with the exception of an underside containing the air inlet opening 66 and facing the warp 9, and is connected to the exhaust air line 70 via the exhaust air line 68 on its upper side facing away from the weaving machine 4. The air inlet opening 66 extends elongated over the entire width of the product path 13 and allows the air flow 62 as exhaust air to flow into the inlet housing 96 and further through the exhaust air branch line 68.

The first and second legs 56 and 58 can be rolled and are mounted in a first 98 and second elongated box 100, respectively. The first and second boxes 98 and 100 are each fastened horizontally on the side of the inlet housing 96 that is perpendicular to the delivery direction L. If necessary, the first and second legs 56 and 58, respectively Unrolled or rolled up to allow access to the weaving machine 4 without having to remove the entire cover 52. In Fig. 2 they are shown in a transparent version in the rolled position.

The cover 52 further comprises, seen in the delivery direction L, a left and a right side part (see FIG. 3) 102 and 104 for optimizing the lateral closing of the space delimited by it.

In contrast to the embodiment of FIG. 1, the first leg 56 overlaps the section of the shafts 24 located above the product path 13 in the vertical direction at least approximately as far as the product path 13. Thus, the direct removal of the air flow 62 exiting the air outlet 40 is without the warp 9 have almost completely avoided. The first region 72 extends from the match tree 14 up to a few centimeters upstream of the stems 24, i.e. in this case up to the first leg 56.

The second leg 58 also extends downward at least approximately to the goods path 13, viewed in the direction of delivery, to the goods take-off tree 30 to form an almost completely continuous surface together with the finished fabric 11. The entry of ambient air into the weaving machine 4 is thus almost completely avoided.

To condition the warp threads 12, the air flow 62 occurs from above on the first area 72 of the product path 13. When striking the warp 9, on the one hand a part of the air flow 62 flows along the warp threads 12 in the direction of the match tree 14 and further of the warp beam 8 and on the other hand in the direction of the shafts 24, while a part between the warp threads 12 flows into and through the rear compartment 19 through it penetrates further into the weaving machine 4, and is loaded with dust and heated. Since the first leg 56 extends downward at least approximately to the product path 13, the air flow 62 can essentially only be suctioned off after the first leg 56.

The heated air flow 62 dust-laden by the weaving machine 4 is sucked off in the second area 74 of the weaving machine 4 located downstream of the first area 72, as seen in the delivery direction, into the cover 52 to the air inlet opening 66 and as exhaust air via the exhaust air branch line 68 in the exhaust duct 70 guided. The second area 74 adjoins the first area 72, begins after the first leg 56, includes the shafts 24 and extends to the goods take-off tree 30 of the weaving machine 4.

The bottom 78 on which the weaving machine 4 is arranged is also free of an air inlet below the weaving machine 4.

3 shows the weaving machine arrangement 2 with a weaving machine accessory, namely a weft preparation device, which comprises a bobbin creel 82 and a weft storage device 80 having a weft insertion 81 and weft storage 80a to 80f.

For the air conditioning of the creel 82, the weaving machine arrangement 2 comprises a further air outlet 84, which is intended to be connected to the air conditioning device 6 and is arranged above the creel 82. The further air outlet 84 is basically of the same design as the air outlet 40 in FIG Loom arrangement 2 of FIG. 2, but its dimensions are adapted to the creel 82.

Furthermore, the weaving machine arrangement 2 comprises a further air inlet 86 arranged above the weft thread storage device 80, which is connected to the exhaust air line 70 via a further exhaust air stub line 88 and which is intended to be connected to the air treatment device 5. The further air inlet 86 has a hood-shaped further cover 90, the opening 87 of which lies at the bottom facing the weft thread storage device 80.

The further cover 90 comprises a further housing 90a of elongated shape connected to the further exhaust air stub 88 with a rectangular cross-section remaining constant over its longitudinal extent. The further housing 90a is closed on all sides with the exception of the underside which forms a further air inlet opening 93 and faces the weft thread storage device 80.

The further cover 90 also has, seen in the direction of delivery L, a first further leg 91a and a second further leg 91b, which are transparent and completely overlap the weft thread stores 80a to 80f of the weft thread storage device 80 in the vertical direction. On the side of the further cover 90 facing away from the weaving machine 4, the further cover 90 comprises a transparent further side part 94 for optimizing the lateral closing of the space delimited by it.

The weft thread insertion 81 between the weft thread stores 80a to 80f and the weaving machine 4 is also covered by a hood-shaped, transparent intermediate cover 92. On their weft thread stores 80a to 80f Side connects the intermediate cover 92 to the further cover 90. On its side facing away from the weft thread stores 80a to 80f, the intermediate cover 92 extends at least partially to the right side part 104 of the cover 52 and the intermediate cover 92 has a passage 106 for the passage of the weft threads to the weaving machine 4.

Conditioned supply air generated by the air conditioning device 6, which is conducted via the supply air line 42 and emerges as a further air flow 95 through the further air outlet 84 in the direction of the creel 82 toward the bottom, hits the creel 82. When the further air flow 95 hits, the thread bobbins are conditioned and heat and dust are removed.

This arrangement advantageously, as already explained above, uses the flow of the cooled conditioned supply air, which flows naturally downward as the further air flow 95. The further air flow 95 heated by the creel 82 then continues to flow naturally upward and is guided with the flow created by the interior pressure of the further housing 90a to the weft thread storage device 80, where the further air flow 95 through the further air inlet opening 93 as exhaust air is suctioned off and guided into the exhaust air line 70 via the further exhaust air branch line 88. The heat and dust in the creel 82 and in the weft thread storage device 80 are thus removed.

Claims

claims 1. Weaving machine arrangement (2), with a weaving machine (4) intended for receiving a warp (9), which has a unwinding device (8) for the delivery of rolled up warp threads (12) and a fabric tree (10) for receiving a finished fabric (11) and shafts (24), and which determines a fabric path (13) along which the warp threads (12) and the finished fabric (11) run from the unwinding device (8) to the fabric tree (10), the delivery of the warp ( 9) forming warp threads (12) from the unwinding device (8) to the fabric tree (10) defines a delivery direction (L), an air outlet (40) arranged above the weaving machine (4), which is intended to be connected to an air conditioning device (5) and an air inlet (50) which is intended to be connected to the Air treatment device (5) to be connected, the air outlet (40) being designed such that supply air generated by the air treatment device (5) exits through the air outlet (40) as an air stream (62) in the direction of the warp (9) and onto a Seen in the delivery direction (L), the first area (72) of the weaving machine (4) for air conditioning the weaving machine (4), located upstream of the shafts (24), and the air inlet (50) is designed such that the air through the weaving machine ( 4) dust-laden, heated air stream (62) is extracted through the air inlet (50), characterized in that the air inlet (50) is arranged above the weaving machine (4) and is designed such that the through the weaving machine (4) Dust-laden, heated air stream is sucked off in a second region (74) of the weaving machine (4), which is seen downstream of the first region (72) and is seen in the delivery direction (L). 2. Loom arrangement (2) according to claim 1, characterized in that the air outlet (40) extends over the entire width of the product path (13), preferably over the entire width of the loom (4). 3. loom arrangement (2) according to claim 1 or 2, characterized in that the first region (72) from a match tree (14) of the loom (4) seen in the direction of delivery L, at least approximately Half, preferably at least approximately three quarters of the distance between a warp thread monitor (18) of the weaving machine (4) and the shafts (24) downstream of the warp thread monitor (18), more preferably a few Centimeters upstream of the shafts (24). 4. loom arrangement (2) according to one of claims 1 to 3, characterized in that the second region (74) comprises the shafts (24) and extends at least up to a rest position of a reed (28) of the weaving machine (4), preferably up to a goods take-off tree (30) of the weaving machine (4) , particularly preferably up to a region of the goods path in which finished tissue is present. 5. loom arrangement (2) according to one of claims 1 to 4, characterized in that the air outlet (40) can be set up so that the air flow exiting through the air outlet (40) is a laminar or a turbulent air flow. 6. loom arrangement (2) according to one of claims 1 to 5, characterized in that a shut-off device (49) is assigned to the air outlet (40), which is intended to shut off or to open the air outlet (40) if necessary. 7. loom arrangement (2) according to one of claims 1 to 6, characterized in that the air inlet (50) extends at right angles to the delivery direction (L), horizontally over the entire width of the product path (13), preferably over the entire width of the weaving machine (2). 8. loom arrangement (2) according to one of claims 1 to 7, characterized in that the air inlet (50) has a hood-shaped cover (52), the opening (54) of which faces the weaving machine (4) and which cover (52) at least partially covers the second region (74). 9. loom arrangement (2) according to claim 8, characterized in that the cover (52) is at least partially removable and / or pivotable about a horizontal pivot axis extending transversely to the delivery direction (L) and / or adjustable in height. 10. weaving machine arrangement (2) according to claim 8 or 9, characterized in that the cover (52), for the lateral closing of a space delimited by it, in Viewed in the delivery direction (L), has a first leg (56) running upstream of the shafts (24) and a second leg (58) running downstream of the shafts (24), and preferably has left and right side parts (102 and 104) . 11. loom arrangement (2) according to claim 10, characterized in that the cover (52) has an air inlet opening (66) which is adjacent to the space and is intended to be connected to the air conditioning device (5), and that the second Leg (58) from a section of the air inlet opening (66) adjacent Cover (52) extends at least approximately down to the goods path (13), preferably extends at least approximately to the goods tree (10), particularly preferably up to an area of the goods path (13) in which finished fabric (11) is present . 12. Weaving machine arrangement (2) according to claim 10 or 11, characterized in that the first leg (56) the portion of the shafts (24) located above the product path (13), at least partially, in a vertical direction Direction, overlaps, preferably that the first leg (56) extends at least approximately to the product path (13). 13. loom arrangement (2) according to one of claims 10 to 12, characterized in that the first and the second leg (56 or 58), preferably independently of one another, are foldable or rollable or bendable. 14. Loom arrangement (2) according to one of claims 1 to 13, with a weaving machine accessory (82), characterized by a further air outlet (84) arranged above the weaving machine accessories (82) and a further air inlet (86) arranged above the weaving machine accessories (80), which are intended for the air treatment device (5) to be connected, the further air outlet (84) being designed in this way is that the supply air generated by the air treatment device (5) through the further air outlet (84) as a further air flow (95) in the direction of the Weaving machine accessories (82) emerges and impinges on the loom accessories (82) for their air conditioning, and the further air inlet (86) is designed such that the heated further air flow (95) dust-laden by the loom accessories (82) through the further air inlet (86 ) is suctioned off. 15. loom arrangement (2) according to one of claims 1 to 14 with a bottom (78) on which the loom (4) is arranged, characterized in that the bottom (78) is free of an air inlet below the loom (4).