Frame of weaving machine having blowing system for removing process dust from fabric region

By using tubular profiles as mounting rods on the frame of the loom and setting a nozzle on it, the problem of low dust removal process efficiency of the existing loom blowing system is solved, and more efficient dust removal and equipment stability are achieved.

CN120153138APending Publication Date: 2025-06-13PICANOL NV
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Patent Information

Application Number
CN202380076208.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-11-03
Filing Date
2023-09-12
Publication Date
2025-06-13

AI Technical Summary

Technical Problem

The blowing system of existing looms is inefficient when removing process dust, and there are many pipes and loose, which affects the stability of the equipment.

Method used

A tubular profile is used as a mounting rod for conduit fluid, and a nozzle is provided on its end surface to remove process dust by directional airflow and reduce the number of loose pipes.

Benefits of technology

It improves the efficiency of removing process dust on the loom, reduces the number of loose pipes on the loom, and improves the stability and flexibility of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a machine frame (21) with a blowing system (9) for removing process dust from a fabric area (13) on a weaving machine, the machine frame (21) comprising a mounting rod arranged above the fabric area (13), the mounting rod being a tubular profile (11) adapted to serve as a conduit for a fluid of the blowing system (9). The invention also relates to a weaving machine comprising the frame.
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Description

[0001] Technical Field and Prior Art

[0002] The present invention relates to a loom frame having a blowing system for removing process dust from the fabric area on the loom.

[0003] In the context of the present application, the expression "process dust" is used to describe dust, fluff, and / or lint generated or caused during the weaving process.

[0004] It is generally known to provide a loom frame with a blowing system that includes two flexible tubes with nozzles mounted at their free ends. These two tubes with nozzles are used to direct an air flow to opposite sides of the frame to remove process dust.

[0005] The tubes are attached to a mounting rod of the frame, which is arranged above the fabric area. In the context of the present application, the fabric area is defined as the woven fabric and warp area adjacent to the beaten weft, where a part of the fabric (which extends between the warp and the fabric take-up system) and a part of the warp (which extends from the beaten weft) are arranged within the fabric area. The mounting rod is arranged above the fabric area and is higher than the fabric take-up system in the height direction.

[0006] The known mounting rod is constructed such that loom devices can be fixed thereto. The loom devices fixed to the mounting rod include, but are not limited to, heddle yarn guides, edge weaving devices, weft repair devices, air supply devices, lighting lamps, etc. Summary of the Invention

[0007] The object of the present invention is to provide a loom frame having an improved blowing system for removing process dust from the fabric area on the loom. Another object of the present invention is to provide a loom having such a frame.

[0008] These objects are solved by a frame and a loom having the features of claims 1 and 15. Preferred embodiments are defined in the dependent claims.

[0009] According to a first aspect, there is provided a loom frame having a blowing system for removing process dust from the fabric area on the loom, wherein the frame includes a mounting rod arranged above the fabric area, and wherein the mounting rod is a tubular profile adapted to function as a conduit for the fluid of the blowing system.

[0010] Throughout this specification and the appended claims, the indefinite article "a" or "an" means "one or more". Further, throughout this specification and the appended claims, the expressions "first" and "second" are used only to distinguish one element from another and do not denote any order of these elements.

[0011] The fluid in the embodiment is a blowing air, which is at a relatively low pressure, for example, a pressure in the range of 1.2 bar to 1.5 bar, which allows the process dust to be blown off to the side members of the loom frame.

[0012] The loom frame in the embodiment further includes two side members and a cross bar connecting the two side members to each other.

[0013] In order to make the tubular profile suitable for use as a conduit for the fluid, in one embodiment, the end face of the tubular profile is closed relative to the surrounding environment, and the through holes in the side wall of the tubular profile are omitted and / or blocked.

[0014] By using the tubular profile as a conduit for the fluid, the fluid can be conveyed from one side of the loom frame to the opposite side. Therefore, the number of loose pipes, flexible hoses or tubes on the loom can be reduced.

[0015] In the embodiment, the mounting rod is further configured such that the loom device can be fixed thereto.

[0016] In one embodiment, a blow nozzle is provided, which is fixed to the tubular profile and fluidly connected to the interior of the tubular profile. In particular, two or more blow nozzles are provided for blowing the process dust towards opposite sides of the loom frame. The blow nozzle is fixed to the tubular profile and provides a directional air flow to remove the process dust from the fabric and / or the warp threads. Further, in the embodiment, one or more additional blow nozzles are provided for blowing towards the weft cutter arranged on the insertion side of the loom frame and / or towards the gripper opener on the opposite side in order to remove the process dust.

[0017] In one embodiment, the tubular profile is provided with a plurality of connection openings to which the blow nozzle can be fixed, and the unused connection openings can be blocked using seals. This enables the operator to select one, two or more of the plurality of connection openings for fixing the blow nozzle thereto according to the specific settings of the loom (in particular according to the weaving width).

[0018] In one embodiment, one side (in particular the front side) of the tubular profile is provided with a longitudinal groove, in which a plurality of connection openings are provided to which the blow nozzle can be attached, and the unused connection openings are blocked by seals. The longitudinal groove and the seals are dimensioned such that the seals do not protrude from the front side of the tubular profile or only slightly protrude from the front side of the tubular profile so that other equipment can move across the blocked connection openings.

[0019] In one embodiment, the blow nozzle is rotatably fixed to the tubular profile, wherein the blow nozzle fixed to the tubular profile can rotate within 360° or within a limited angular range. This allows the adjustment of the air flow direction.

[0020] In one embodiment, a suction pipe is provided on the side of the frame, and the suction pipe is adapted to suck away the process dust blown to the side of the frame by the nozzle.

[0021] In particular, in the embodiment, two suction pipes are provided. One suction pipe is located on the first side of the frame, and the other suction pipe is located on the opposite second side of the frame. A suction device is provided on the first side (especially the insertion side) of the frame. The suction pipe arranged on the second side of the frame is connected to the suction device through a rigid pipe, and the rigid pipe is especially attached to the cross beam of the frame. In one embodiment, the suction device also provides blowing for one or more nozzles.

[0022] In one embodiment, a flexible pipe is connected to the tubular profile for supplying fluid to the tubular profile. In one embodiment, the flexible pipe connects the tubular profile to a gas supply system for supplying blowing to the tubular profile. The gas supply system is, for example, a suction device that blows the inhaled air, which has passed through a filter, into the flexible pipe.

[0023] In one embodiment, the interior of the tubular profile is partitioned to form two or more independent ducts. Thus, two or more different fluids can be supplied through the tubular profile, and these fluids can be used for different devices, thereby minimizing the number of loose pipes, flexible pipes or tubes. In one embodiment, the pressures of two or more fluids supplied through the tubular profile are different.

[0024] In one embodiment, the tubular profile has a polygonal cross-section, especially a rectangular cross-section with two long sides and two short sides. One long side faces the front of the frame, and the other long side faces the back of the frame. One short side faces up, and the other short side faces down. Loom devices, such as heddle yarn guides, edge knitting devices, weft repair devices including one or more air valves, gas supply devices, lighting lamps, etc., can be attached to the tubular profile using sleeves without through holes in the tubular profile. In an alternative, the loom device can be attached by providing through holes, where the connection is fluid-tight. In one embodiment, the nozzle or each of the nozzles is fixed to the long side of the tubular profile whose face faces the front of the frame.

[0025] In one embodiment, longitudinal grooves are provided on one or more sides of the tubular profile. The longitudinal grooves allow the fixing elements to engage with the tubular profile, thereby fixing the loom device to the tubular profile without the fixing elements surrounding the mounting rod.

[0026] In one embodiment, the tubular profile is provided with longitudinal grooves on at least two sides. These two longitudinal grooves enable side members for attaching the tubular profile to a frame and / or fixing elements for fixing a loom device to the tubular profile to clamp the tubular profile in a form-fitting manner. Thereby, it is possible to dispense with additional machining of the tubular profile to provide through-holes or similar elements in order to attach the tubular profile to the side members and / or to fix the loom device to the tubular profile.

[0027] In one embodiment, the fixing element is an arcuate or U-shaped bracket having an inwardly directed tip that engages with the longitudinal groove. In other embodiments, the fixing element has a dovetail groove that is flanked by two fingers that can engage with two longitudinal grooves provided on two different sides of the tubular profile.

[0028] In one embodiment, the tubular profile has a first side and a second side, where the second side is not directly adjacent to the first side, and each of the first side and the second side is flanked by two longitudinal grooves at opposite edges, such that two loom devices can be fixed to the tubular profile at the same width position of the frame using a first fixing element and a second fixing element, the first fixing element clamping the first loom device to the tubular profile in a form-fitting manner on the first side of the tubular profile, and the second fixing element clamping the second loom device to the tubular profile in a form-fitting manner on the second side of the tubular profile.

[0029] The loom devices arranged on the first side and the second side can each be moved to a desired position, and where, if not restricted by the size or shape of the loom device itself, the loom devices can pass through each other along the tubular profile. Thus, each loom device can be repositioned without disassembling the loom device and / or any other loom device.

[0030] In one embodiment, the tubular profile has a rectangular cross-section with two long sides and two short sides, where each long side and each short side is flanked by longitudinal grooves at opposite edges. In other words, each of the four sides of the tubular profile having a rectangular cross-section is provided with at least one longitudinal groove. This provides a high degree of flexibility for attaching different loom devices to the mounting bar. This also allows an arcuate or U-shaped fixing element having an inwardly directed tip to be clamped to one of the long sides or one of the short sides.

[0031] In one embodiment, each short side is provided with exactly one longitudinal groove that abuts the opposite edges of the two long sides. This allows for larger longitudinal grooves on the short sides without increasing the size of the tubular profile.

[0032] In one embodiment, at least one longitudinal groove on the short side is adapted to receive an elongate flexible element, such as a cable, a hose, a flexible tube, a pipe and / or a conduit. Thus, the elongate flexible element can be securely guided, and the number of unsecured or loose elongate flexible elements on the loom can be reduced.

[0033] In one embodiment, the tubular profile is provided with a plurality of connection openings for supplying fluid to the loom device through the tubular profile.

[0034] In one embodiment, the frame includes a first side member and a second side member, wherein the tubular profile is attached to the first side member by a first support and / or attached to the second side member by a second support.

[0035] According to a second aspect, there is provided a loom comprising a frame with a blowing system for removing process dust from a fabric area, the frame including a mounting rod arranged above the fabric area, the mounting rod being configured such that loom devices can be fixed thereto, wherein the mounting rod is a tubular profile adapted to serve as a conduit for the fluid of the blowing system. The loom may be a rapier loom or a jet loom. Description of the Drawings

[0036] Embodiments of the present invention will be described in detail below with reference to the drawings. In all the drawings, the same elements will be denoted by the same reference numerals. The drawings show:

[0037] Figure 1 Showing the components of the loom and the frame, the frame including a mounting rod in the form of a tubular profile arranged above the fabric area of the loom;

[0038] Figure 2 Showing Figure 1 the frame, including two side members, a cross beam connecting the side members, and a tubular profile arranged above the fabric area;

[0039] Figure 3 Showing Figure 1 a front view of the tubular profile, which has two supports for attaching the tubular profile to Figure 1 the side members;

[0040] Figure 4 Showing a front view of the tubular profile with two nozzles, wherein the position of one of the nozzles is displaced relative to Figure 3 ;

[0041] Figure 5 Showing details of the tubular profile near the nozzle;

[0042] Figure 6 Showing in an exploded view Figure 5 the details;

[0043] Figure 7 Shows Figure 1 Details of, showing a part of the tubular profile, a part of the first support and a part of the flexible supply duct;

[0044] Figure 8 Shows Figure 7 Cross-sectional view of the tubular profile of, the tubular profile being attached to the support, wherein an additional elongated flexible element is received in a longitudinal groove provided at the upper short side of the tubular profile;

[0045] Figure 9 Shows Figure 1 Cross-sectional view of the tubular profile with a nozzle in, wherein the tubular profile is attached to the support using two jaws;

[0046] Figure 10 Shows Figure 2 The frame of, to which several loom devices are attached;

[0047] Figure 11 Cross-sectional view showing a second embodiment of the tubular profile, which has an interior divided into two parts by a partition wall, and the loom device is attached to the tubular profile;

[0048] Figure 12 Shows a frame for a loom, including two side members, a cross beam connecting the side members and two tubular profiles, each tubular profile being arranged above the fabric area; and

[0049] Figure 13 Shows the components of the loom and the frame, which includes mounting bars in the form of tubular profiles arranged above the fabric area of the loom. Detailed description

[0050] Figure 1 Schematically shows the components of the loom, namely the warp beam 1, the back beam 3, the fabric take-up system 5 including the breast beam 7, the blowing system 9 for removing process dust, and the frame 21 with mounting bars, which are tubular profiles 11. Figure 2 The frame 21 and the blowing system 9 are shown separately.

[0051] The frame 21 includes a first side member 23, a second side member 25, a cross beam 27, a first support 29, a second support 31 and a tubular profile 11. The tubular profile 11 is attached to the first side member 23 through the first support 29 and to the second side member 25 through the second support 31.

[0052] The tubular profile 11 is arranged above the fabric area 13 of the loom, which is defined as the area of the woven fabric 15 and the warp threads 17 adjacent to the beat-up weft thread 19. The tubular profile 11 is arranged higher in the height direction than the fabric take-up system 5. In addition, an insertion element 20, such as a gripper for a rapier, is shown.

[0053] The tubular profile 11 is suitable for use as a conduit for the fluid of the blowing system 9.

[0054] The blowing system 9 includes a supply duct 34, such as a flexible tube, which is fluidly connected to the tubular profile 11, and several blowing nozzles 35. In the illustrated embodiment, two blowing nozzles 35 are shown, which are attached to the tubular profile 11 and fluidly connected to the interior of the tubular profile 11. The blowing fluid (such as blowing air) is supplied to the blowing nozzles 35 through the vertically extending supply duct 33, the supply duct 34 connected to the tubular profile 11, and the tubular profile 11. The blowing nozzles 35 are oriented to provide a directed air flow blown onto the fabric area 13 for removing process dust from the fabric area 13. In the illustrated embodiment, the two blowing nozzles 35 are oriented to blow the process dust towards opposite sides of the loom frame 21.

[0055] On opposite sides of the loom frame 21, suction pipes 32 and 37 are provided. The suction pipes 32 and 37 may be adapted to suck away the process dust blown to the two sides of the loom frame 21 by the blowing nozzles 35. The suction pipes 32 and 37 may also be adapted to suck in and / or hold the ends of the inserted weft threads. In the illustrated embodiment, on Figure 1 and Figure 2 the insertion side of the loom shown on the left in Figure 1 and 2 , a suction device 38 is provided, wherein the first suction pipe 32 arranged on the insertion side is connected to the suction device 38 through a filter unit 39. In the illustrated embodiment, the supply duct 34 is also fluidly connected to the suction device 38, and the suction device 38 serves as a source of the blowing air supplied to the blowing nozzles 35. In the illustrated embodiment, on

[0056] Figure 3 and Figure 4 the second suction pipe 37 on the opposite side of the loom shown on the right in Figure 1 is connected to the filter unit 39 and the suction device 38 through a rigid pipe 36 extending below the fabric area 13. The rigid pipe 36 is fixed to the cross beam 27 of the loom frame 21 through a bracket 40. Figure 1 and Figure 2 ) Figure 5 and Figure 6 show details of the tubular profile 11.

[0057] As Figures 3 to 6As shown, the tubular profile 11 has a plurality of connection openings 41. In the present embodiment, six connection openings 41 are shown, and these connection openings 41 are arranged in two groups, with three in each group. The nozzle 35 can be selectively connected to any one of the plurality of connection openings 41. In Figure 3 the illustrated embodiment, two nozzles 35 are attached to the two outermost connection openings 41. In contrast, in Figure 4 the illustrated embodiment, the nozzle 35 located on the right side in the drawing plane is attached to the innermost connection opening 41 among the three connection openings 41 on the right side.

[0058] As Figure 6 shown, in the illustrated embodiment, each of the connection openings 41 includes a groove 42, and the coupling of the nozzle 35 includes a threaded beam 43 that can be inserted into the groove 42 and fixed to the nozzle 35 using a screw 45. A sealing ring 44 is arranged between the tubular profile 11 and the nozzle 35. The unused connection openings 41 are blocked using a seal 47. This allows each nozzle 35 to be rotatably fixed to the tubular profile 11 at any angular position, and the nozzle 35 fixed to the tubular profile 11 can rotate within a 360° or limited angular range.

[0059] The beam 43 allows the nozzle 35 to be rotatably fixed to the tubular profile 11, and the orientation of the nozzle 35 relative to the tubular profile 11 can be adjusted to direct the airflow from the nozzle 35 to the desired area of the fabric area 13.

[0060] Figure 7 Shown Figure 1 are details showing a part of the tubular profile 11, a part of the first support 29, and a part of the air supply pipe 34 from the rear. As Figure 7 shown, in order to use the tubular profile 11 as a conduit for fluid, each end face 49 of the tubular profile 11 is closed relative to the surrounding environment using a closing plate 50. As Figure 7 further shown, the tubular profile 11 is attached to the support 29 using a cross plate 51 and screws 52.

[0061] Figure 8 Shown Figure 7 is a cross-sectional view of the tubular profile 11 that is attached to the support 29 using a cross plate 51. As Figure 8 shown, on the opposite side of the cross plate 51, the tubular profile 11 is provided with an opening 53 through which a screwdriver (not shown) can be inserted to tighten the screw 52 for fixing the tubular profile 11 to the cross plate 51. The opening 53 is sealed using a seal 54. Another seal 55 is provided around the screw 52.

[0062] As Figure 8 further shown, Figures 1 to 8The tubular profile 11 shown has a substantially rectangular cross-section with two long sides 56, 66 and two short sides 57, 67, where the tubular profile 11 is oriented such that the first short side 57 faces upwards and the second short side 67 faces downwards. As Figure 8 shown, longitudinal grooves 58 are provided on each of the short sides 57, 67. As Figure 1 and 2 seen, the first long side 56 faces the front of the loom frame 21. As Figure 7 seen, the second long side 66 faces the back of the loom frame 21 (see Figure 1 and 2 ). In the illustrated embodiment, the longitudinal grooves 58 at the short sides 57, 58 are adapted to receive elongated flexible elements 60, such as cables, hoses, flexible tubes, pipes, and / or conduits. Thus, the elongated flexible elements 60 can be securely guided in the longitudinal grooves 58 across the width of the loom. In addition, each of the long sides 56, 66 is adjacent to the longitudinal groove 58 at the opposite edge, and each of the short sides 57, 67 is adjacent to the longitudinal groove 69 at the opposite edge. In particular, each of the short sides 57, 67 is provided with a longitudinal groove 58 that is adjacent to the opposite edges of the two long sides 56, 66. At least one longitudinal groove 58 on the short sides 57, 67 is adapted to receive elongated flexible elements 60, such as cables, hoses, flexible tubes, pipes, and / or conduits.

[0063] Figure 9 shows Figures 1 to 8 a cross-sectional view of the tubular profile 11 with the nozzle 35, where, different from Figures 1 to 8 , the tubular profile 11 is attached to the support 29 using two jaws 61, 63 that engage with the longitudinal grooves 58 provided on the short sides 57, 67 of the tubular profile 11. The nozzle 35 is fixed to the first long side 56 of the tubular profile 11, which faces the front of the loom frame 21 (see Figure 1 and Figure 2 ). In the Figure 9 illustrated embodiment, the first jaw 61 is fixedly attached to the support 29 and engages with the longitudinal groove 58 provided on the second short side 67 facing downwards. The second jaw 63 is movable relative to the first jaw 61 in the horizontal direction, and the second jaw 63 is attached to the first jaw 61 by a screw 62 and engages with the longitudinal groove 58 provided on the first short side 57 facing upwards.

[0064] The tubular profile 11 in the embodiment is further configured such that loom devices (such as heddle yarn guides, selvedge devices, weft repair devices, air supply devices, lighting fixtures, etc.) can be fixed to it.

[0065] Figure 10 shows Figure 2The loom frame 21, to which several loom devices 64, 65 are attached, among which Figure 10 only the nozzle 35 of the blowing system is shown.

[0066] In Figure 10 the illustrated embodiment, four loom devices 64, 65 are mounted on the tubular profile 11. In the illustrated embodiment, two loom devices 64 arranged closer to the side members 23 and 25 are edge weaving devices, and two loom devices 65 arranged closer to the center of the loom frame 21 are heddle yarn guides 65. However, more and / or different loom devices can be attached to the tubular profile 11, for example, a weft repair device including one or more air valves, a gas supply device, a lighting lamp, etc. The loom device 64 can be fixed to the tubular profile 11 by two jaws, as Figure 9 shown, while the loom device 65 can be fixed to the tubular profile 11 using screws similar to the Figure 8 shown cross plate 51.

[0067] Figure 11 A cross-sectional view of the tubular profile 11 similar to the Figures 1 to 10 is shown, which is a tubular profile with a nozzle 35, among which different from the Figures 1 to 10 , the interior of the tubular profile 11 is separated by a horizontal partition wall 68, which is arranged parallel to the short sides 57, 67 of the tubular profile 11. The interior of the tubular profile 11 arranged below the partition wall 68 is used as a conduit for the blowing fluid of the blowing system 9 (see Figure 1 and Figure 2 ), and the nozzle 35 is fluid-connected to this part of the interior arranged below the partition wall 68. The interior of the tubular profile 11 arranged above the partition wall 68 in the embodiment is used as a second conduit for the second fluid. As Figure 11 shown, the loom device 64 can be attached to the tubular profile 11, among which, in the illustrated embodiment, the loom device 64 is attached to the tubular profile 11 using two jaws 61, 63, and these two jaws engage with the longitudinal grooves 58 provided on the short sides 57, 67 of the tubular profile 11. In Figure 11 the illustrated embodiment, the first jaw 61 is fixedly attached to the loom device 64 in place and engages with the longitudinal groove 58 provided on the second short side 67 facing downwards. The second jaw 63 can move horizontally relative to the first jaw 61 and engages with the longitudinal groove 58 provided on the first short side 57 facing upwards.

[0068] Figure 12 Another embodiment of the loom frame 21 is shown. According to Figure 12The frame 21 includes a first side member 23 and a second side member 25, a cross beam 27, a first support member 29 and a second support member 31. The frame 21 also includes two tubular profiles 11, wherein the first tubular profile 11 is attached to the first side member 23 through the first support member 29, and the second tubular profile 11 is attached to the second side member 25 through the second support member 31. The frame 21 further includes a jacquard harness board 75 supported by the first support member 29 and the second support member 31.

[0069] The two longitudinal profiles 11 are fluidly connected to each other through a pipe 78.

[0070] In Figure 12 the illustrated embodiment, both of the two tubular profiles 11 are adapted to be used as conduits for fluids. For this purpose, the end faces of the tubular profiles 11 are closed relative to the surrounding environment, and the through holes in the side walls of the tubular profiles 11 are blocked. Fluids can be conveyed from one side of the frame 21 (e.g., from the insertion side on the left side in the drawing plane) to the opposite side on the right side in the drawing plane of the frame 21.

[0071] In the illustrated embodiment, the air supply pipe 34 is flexible and is connected to the first tubular profile 11 attached to the first side member 23 for fluid supply. Fluids are conveyed through the air supply pipe 34 and the first tubular profile 11 to the blow nozzle 35 attached to the first tubular profile 11. In addition, fluids are conveyed through the air supply pipe 34, the first tubular profile 11, the pipe 78 and the second tubular profile 11 to the blow nozzle 35 attached to the second tubular profile 11.

[0072] Fluids can be provided to several loom devices (e.g., weft repair devices including one or more air valves, air supply devices, etc.) through the tubular profiles 11. In Figure 13 the embodiment, blowing can be provided to the loom device 70 (e.g., a waste yarn blowing device arranged near the weft cutter 72 (not shown in detail)) through the tubular profiles 11 and the pipe 71 in order to blow away process dust, e.g., weft yarn ends from the weft cutter 72. Both the loom device 70 and the weft cutter 72 are arranged near the beating-up weft 19 extending between the warp 17 and the woven fabric 15, and the woven fabric 15 is wound around the fabric beam 6 and is near the edge of the insertion side of the woven fabric 15.

[0073] In an alternative not shown, blowing devices 35 can be provided at one or more connection openings 41 to blow away process dust. Thus, in Figure 13In an embodiment, several blowing devices 35 may be provided, for example up to six blowing devices 35. In the embodiment, up to three blowing devices 35 may be provided near each of the side members 23, 25, and the blowing devices are oriented to blow process dust towards the side members 23, 25. For example, near the first side member 23, one blowing device 35 is provided at three connection openings 41, while near the second side member 25, only two of the three connection openings 41 are provided with nozzles 35, for example the connection opening 41 arranged furthest from the second side member 25 and the connection opening 41 arranged closest to the second side member 25. Of course, in alternative embodiments, one, two, four or more connection openings may be provided near each of the side members 23, 25.

[0074] Furthermore, similar to the loom device 70, another loom device (not shown) may be arranged, which provides blowing through a pipe connected to one of the connection openings 41 of the tubular profile 11. In this way, the tubular profile 11 serves as a conduit for blowing. Similarly, the tubular profile may serve as a conduit for any other fluid.

[0075] Reference Figures 1 to 12 The described embodiments are only examples, and various variations can be envisaged. In particular, features from different embodiments can be combined or replaced without departing from the scope of the present invention.

Claims

1. A loom frame having a blowing system (9) for removing process dust from a fabric area (13) on the loom, the frame (21) including a mounting bar disposed above the fabric area (13). Characterized in that the mounting bar is a tubular profile (11) adapted to serve as a conduit for the fluid of the blowing system (9).

2. The loom frame according to claim 1, Characterized in that a blowing nozzle (35) is provided, which is fixed to the tubular profile (11) and fluidly connected to the interior of the tubular profile (11), and in particular, two or more blowing nozzles (35) are provided for blowing the process dust towards opposite sides of the frame (21).

3. The loom frame according to claim 2, Characterized in that the tubular profile (11) is provided with a plurality of connection openings (41) to which the blowing nozzles (35) can be fixed, and unused connection openings (41) can be blocked with seals (47).

4. The loom frame according to claim 2 or 3, Characterized in that the blowing nozzles (35) can be rotatably fixed to the tubular profile (11), and the blowing nozzles (35) fixed to the tubular profile (11) can rotate within 360° or a limited angular range.

5. The loom frame according to any one of claims 1 to 4, Characterized in that a supply pipe (34) is connected to the tubular profile (11) for supplying fluid to the tubular profile (11).

6. The loom frame according to any one of claims 1 to 5, Characterized in that the end faces (49) of the tubular profile (11) are closed with respect to the surrounding environment.

7. The loom frame according to any one of claims 1 to 6, Characterized in that the interior of the tubular profile (11) is partitioned to form two or more separate conduits.

8. The loom frame according to any one of claims 1 to 7, Characterized in that the tubular profile (11) has a polygonal cross-section.

9. The loom frame according to claim 8, Characterized in that the tubular profile (11) has a rectangular cross-section with two long sides (56, 66) and two short sides (57, 67), where the first long side (56) faces the front of the frame (21), the second long side (66) faces the back of the frame (21), and where the first short side (57) faces upwards and the second short side (67) faces downwards.

10. The loom frame according to claim 9, Characterized in that the blowing nozzles (35) are fixed to the first long side (56) of the tubular profile (11) facing the front of the frame.

11. The loom frame according to claim 9 or 10, Characterized in that longitudinal grooves (58) are provided on one or more sides of the tubular profile (11).

12. The loom frame according to claim 11, Characterized in that The tubular profile (11) has a rectangular cross-section with two long sides (56, 66) and two short sides (57, 67), wherein each of the long sides (56, 66) is adjacent to a longitudinal groove (58) at opposite edges, and each of the short sides (57, 67) is adjacent to a longitudinal groove (69) at opposite edges, in particular, each of the short sides (57, 67) is provided with a longitudinal groove (58) which is adjacent to the opposite edges of the two long sides (56, 66), in particular, at least one of the longitudinal grooves (58) at the short sides (57, 67) is adapted to receive an elongate flexible element (60), such as a cable, a hose, a flexible tube, a pipe and / or a conduit.

13. The loom frame according to claim 1, characterized in that the tubular profile (11) is provided with a plurality of connection openings (41) for supplying fluid to the loom device (70) through the tubular profile (11).

14. The loom frame according to any one of claims 1 to 13, characterized in that the loom frame (21) comprises a first side member (23) and a second side member (25), wherein the tubular profile (11) is attached to the first side member (23) by a first support (29) and / or attached to the second side member (25) by a second support (31).

15. A loom comprising the loom frame (21) according to any one of claims 1 to 14.