Classifications

• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
  • D03D49/02—Construction of loom framework
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
  • D03C1/00—Dobbies
  • D03C1/14—Features common to dobbies of different types
  • D03C1/16—Arrangements of dobby in relation to loom

Definitions

• the invention relates to a support structure for a shedding system of a weaving machine, which has a machine frame with two side parts, between which shedding means are to be attached, for which the support structure contains a system of rods and levers.
• a support structure for a shedding system of a weaving machine of the type mentioned at the outset is known from EP 742 298 B1 or DE 696 07 675 T2.
• the known support structure has a U-shaped profile with side elevations, in which the system of rods and levers is arranged.
• the supporting structure also serves as an oil container.
• the known support structure is voluminous and difficult to implement. It is also not particularly suitable for aligning various components mounted in the support frame or keeping them aligned. Therefore, the known support structure is not particularly favorable for use in weaving machines that work at high weaving speeds.
• the well-known carrying construction limited to a certain drive system and only suitable for use in a weaving machine with a given width.
• the aim of the invention is to provide a support structure of the type mentioned, which does not have the disadvantages mentioned and which is suitable for high weaving speeds.
• a housing composed of at least two partial housings is provided for accommodating the system of rods and levers, of which a first partial housing in the region of the outside of a side part and a second partial housing in the region between the two side parts and transversely to the Side parts is to be arranged.
• the design according to the invention achieves the advantage that the support structure formed from at least two partial housings is sufficiently resistant to changing forces, changing temperatures, deformations, vibrations or resonances and therefore allows weaving at high weaving speeds.
• the supporting structure can be selected in a simple manner depending on the width of the weaving machine or can be adapted to it.
• the first partial housing is provided with fastening means for attachment to a side part of the weaving machine, and that the second partial housing is fastened to the first partial housing.
• the second part of the housing advantageously extends up to the side part of the weaving machine, which lies opposite the side part to which the first part of the housing is attached. This results in a rigid support structure that allows weaving at high weaving speeds.
• the fastening means for attaching the first partial housing to a side part of the weaving machine contain elastic elements. This enables relative movements between the machine frame and the supporting structure, so that oscillations and the like. are transferred less strongly from the supporting structure to the machine frame or from the machine frame to the supporting structure.
• This design of the fastening means is also advantageous when the supporting structure is in one piece and is not assembled from several partial housings.
• the partial housing and the system of rods and levers accommodated therein form a structural unit which can be attached to a weaving machine and can be removed from the weaving machine. Units can be kept ready that differ only in the part housing to be arranged between the side parts of a weaving machine, which is dimensioned according to different weaving machine widths.
• the partial housings are provided with reference surfaces facing each other. By means of these reference surfaces, the partial housings can be positioned exactly with respect to one another while they are attached to one another. This positioning is retained even when the forces and temperatures change.
• a seal is preferably provided between the two reference surfaces. This can prevent oil, especially lubricating oil, from getting between the reference surfaces.
• the second partial housing contains a U-shaped profile which forms a bottom and two side walls of the partial housing.
• a bottom and two side walls of the first partial housing are components of a profile.
• Such a partial housing can be used as an oil serve storage container or as an old passage to the second partial housing, for example formed from a U-shaped profile, which can also be an oil storage container.
• a control lever is mounted in the first partial housing so as to be pivotable about an axis, which is connected on the one hand by means of a coupling system to a drive lever and on the other hand by means of a transmission rod to a shedding device and by means of a connection system to at least one further lever, which is connected in the second Part housing stored and is also connected to the shedding means by means of a transmission rod.
• the reference surface of the first partial housing runs parallel to the axis of the control lever and the reference surface of the second partial housing runs parallel to the axis of the further lever. Because of this arrangement of the reference surfaces, the axis of the control lever and the axis of the further lever can be aligned exactly parallel to one another, so that the control lever and the second lever are aligned with one another. This alignment is retained even when the forces occurring and changes in temperature change.
• the axis of the control lever is mounted in the region of the front end of the first part housing, which is assigned to the second part housing.
• the control lever can be arranged closer to a shedding means, in particular a shaft frame. This makes it easy to connect the shedding device to the control lever.
• This arrangement also makes it possible to install a lubrication system, such as lubricant lines or lubricating oil spray nozzles, in the area of the control lever bearing.
• a lubrication system such as lubricant lines or lubricating oil spray nozzles
• the control lever bearing which is normally subjected to high forces, can be well lubricated.
• the storage arranged in this way the control lever are cooled in an advantageous manner.
• the lubricating oil is preferably used at the same time for cooling the bearing.
• the supporting structure has a third partial housing, which is attached to the first partial housing on the side facing away from the second partial housing.
• the drive lever is stored in the third sub-housing.
• the first partial housing and the third partial housing have reference surfaces facing one another, the reference surface of the first partial housing preferably running parallel to the axis of the control lever and the reference surface of the third partial housing parallel to the axis of the drive lever.
• a seal is preferably provided between the reference surfaces in order to prevent oil, in particular lubricating oil, from getting between the reference surfaces.
• the axes of the control lever and the drive lever are aligned exactly parallel to one another by the reference surfaces, so that the control lever and the drive lever are aligned.
• control lever is connected to the drive lever by means of a clutch system, a clutch rod being rotatably mounted at a first articulation point of the control lever, which is located at the top in the first partial housing, and a clutch rod is connected to the drive lever via an adjustment unit.
• the control lever is preferably connected to the further lever by means of a connecting system, a connecting rod being articulated to a second articulation point of the control lever, this articulation point preferably being located at the bottom in the first partial housing.
• at least one intermediate wall is provided between partial housings, which protrudes upward from the bottom of the respective partial housing.
• the oil, in particular lubricating oil, present in the two adjoining partial housings can be separated from one another.
• the partition is preferably designed as a seal between the partial housings.
• the partial housings are preferably each provided with an intermediate wall. This makes it possible to separate and remove the sub-housings from one another without oil being able to leak out of the sub-housings.
• pressure oil supply lines are led to one or more of the axes arranged in the partial housings.
• the axes which are provided with outlet openings in the area of the bearings, then serve as an internal supply line of lubricating oil to the bearings.
• the lubricating oil supplied to the bearings can drip into the partial housing.
• oil is guided from the axles, which are provided with outlet openings for pressure oil, by means of pressure oil channels running through the rods and levers to articulation points which connect the rods and levers to one another.
• brackets for guides for the up and down movable compartment forming means are arranged on the second partial housing to be arranged between the side parts of a weaving machine.
• the shedding system is designed to form an assembly that is largely independent of the machine frame of the weaving machine.
• Fig. 1 shows a vertical section through an inventive
• FIG. 2 is a partially sectioned top view of the support structure of FIG. 1,
• FIG. 2a shows a detail of FIG. 2 on an enlarged scale
• FIG. 4 shows a perspective view of the supporting structure according to FIG.
• FIG. 5 shows the support structure according to FIG. 1 during assembly
• Fig. 6 is a vertical section similar to FIG. 1 through a modified
• FIG. 8 shows the embodiment according to FIG. 7 during assembly
• Fig. 9 shows another embodiment of an inventive
• FIG. 10 is a section through an embodiment corresponding to FIG. 1 with guides for shedding means and spray lubrication for axles and articulation points and
• FIG. 11 shows a section through an embodiment similar to FIG. 1 with a pressure oil supply for the articulation points and axles and with guides for shedding means.
• the support structure 1 according to the invention shown in FIGS. 1 to 5 has a first partial housing 10 which is attached to a side part 12 of a machine frame 11 of a weaving machine. Furthermore, the support structure has a second partial housing 24 which extends transversely to the side parts 12, 13 of the machine frame 11 of the weaving machine and in the area between these side parts 12, 13 across the width A of the weaving machine.
• the second sub-housing 24, which can be supported in the vertical direction in the region of the side part 13, is connected to the sub-housing 10 in the region of the side part 12.
• the first sub-housing 10 has a reference surface 36.
• the second sub-housing 24 has a reference surface 37.
• the two reference surfaces 36 and 37 mentioned face one another and lie against one another when the two sub-housings 10, 24 are connected to one another.
• a seal 38 is provided between the two reference surfaces 36, 37, which consists, for example, of a thin strip that has the contour of the reference surfaces 36, 37.
• the second sub-housing 24 has a U-shaped profile which is provided in the region of its base with a depression or a groove in which oil can be guided.
• the first partial housing 10, which can be produced as a casting has two side walls 29, 30 and a bottom 31. The side walls and the bottom form a U-shaped profile which is delimited on both end faces by plates which form fastening flanges.
• an axis 3 is provided in the first partial housing 10, on which a control lever 4 is mounted.
• the tax lever 4 is connected via a coupling rod 20 and an adjusting unit 21 to a drive lever 6.
• the control lever 4 has a substantially T-shaped shape.
• Axis 3 is at the height of the middle leg.
• the upwardly projecting leg is connected to the coupling rod 20 via a joint 5.
• the downwardly projecting leg is connected via a joint 7 to a connecting rod 22 which is articulated by means of a joint to a further, angular lever 9 which can be rotated about an axis 8.
• connection between the coupling element 18 and the coupling rod 19 of the shaft frame 14 of a shedding device 2 can be designed, for example, constructively, as is known from EP 520 540 A1.
• the drive lever 6 is pivotally mounted about an axis 27 and connected to a drive 23, for example an eccentric drive or cam drive or a dobby.
• the joints 5, 7, 15 and 17 are designed as bearings made of journal and a bearing, such as ball bearings or roller bearings.
• the reference surface 36 of the partial housing 10 runs parallel to the axis 3, on which the control lever 4 is mounted.
• the reference surface 37 of the partial housing 24 runs parallel to the axis 8, on which the further lever 9 is mounted. If the reference surfaces 36, 37 are aligned with one another during assembly, the axes 3 and 8 run parallel to one another.
• the axis 3 of the control lever is arranged in the region of the end face 25 of the first housing part 10, which faces the second housing part 24.
• On the second sub-housing 24 are in the Embodiment vertical guides 26 arranged, which guide the coupling elements 18.
• the supporting structure 1 has a third partial housing 28 which is fastened to the partial housing 10.
• the drive lever 6 is mounted on the axle 27 in the third partial housing 28.
• the drive 23 is located in the partial housing 28.
• the first partial housing 10 is provided with a reference surface 44, which a reference surface 45 of the third partial housing 28 faces. Between the two reference surfaces 44, 45, a seal 46 is arranged, which consists of a thin strip that has the contour of the reference surfaces 44, 45.
• the reference surface 44 runs parallel to the axis 3 of the control lever 4.
• the reference surface 45 runs parallel to the axis 27 of the drive lever 6. If the partial housings 10 and 28 are connected to one another in such a way that the reference surfaces 44 and 45 lie against one another, the axis 3 runs and the axis 27 parallel to each other.
• the third partial housing 28 is fastened to the first partial housing 10 by means of screws 32.
• the first partial housing 10 is fastened to the side part 12 of the machine frame 11 of the weaving machine by means of a fastening system, which contains screws 33, for example.
• the second sub-housing 24 is fastened to the first sub-housing 10 by means of screws 34.
• the fastening system for the partial housing 10 contains an elastic connection 69 for fastening to the side part 12 of the machine frame 11 of the weaving machine.
• This elastic connection 69 contains the screw 33 which is screwed into the side part 12.
• An elastic element 71 is arranged between the head of the screw 33 and the partial housing 10, and an elastic element 72 is arranged between the partial housing 10 and the side part 12.
• the elastic elements 71, 72 consist for example of rubber rings or disc springs or spiral springs.
• a sub-housing 28 can be attached with an eccentric drive or a cam drive or a dobby or any other type of drive.
• the coupling rod 20 is articulated by means of a joint 5 on the upper, essentially vertically oriented leg of the control lever 4.
• the connecting rod 22, which is connected to the further lever 9, is attached to the leg of the control lever 4 pointing downward by means of a joint 7.
• an intermediate wall is provided between the first partial housing 10 and the second partial housing 24, which protrudes upwards from the bottom area, which can be the seal 38, for example, the two sub-housings 10, 24 can thus be separated from one another without oil leaking from a sub-housing. Accordingly, an intermediate wall can be provided between the partial housing 10 and the third partial housing 28, which can also consist of the seal 46.
• the reference surfaces 36, 37 and the reference surfaces 44, 45 run parallel to one another and perpendicular to the longitudinal direction of the support structure 1.
• the axis 3 of the control lever 4 is designed as a shaft 39, which is fixed by means of a clamping system 40 in the region of the end face 25 of the partial housing 10 ,
• a bearing, not shown, is arranged on this shaft 39, for example a ball or roller bearing, which receives the control lever 4.
• a lubrication system 41 is provided for this bearing (FIG. 1), which consists of a lubricant line, in particular an oil line 42, and spray nozzles 43.
• the entire supporting structure 1 can be attached to the side part 12 of the machine frame 11 as a pre-assembled unit. However, it can also be done in such a way that only the partial housing 10 and the partial housing 28 are first assembled and then attached as a whole to the side part 12.
• the partial housing 24 can be attached to the partial housing 10 before the partial housing 10 is attached to the side part 12. However, it is also possible to attach the partial housing 24 to the partial housing 10 only after the partial housing 10 has been fastened to the side part 12.
• the assembled partial housings 10, 24 and 28 form a structural unit which also serves as a reservoir for oil 47, in particular for lubricating oil. The level of oil 47 can be selected.
• the first partial housing 10 and the second partial housing 24 are each provided with intermediate walls 48, 49, on which they can be separated.
• the partition walls 48, 49 remain on their partial housing 10, 24 after the separation.
• two intermediate walls 50, 51 are provided, on which the two partial housings 10, 28 can be separated from one another, the wall 50 in the partial housing 10 and the wall 51 remains in the partial housing 28.
• the intermediate walls 50, 51 can be relatively high, while the intermediate walls 48, 49 must be chosen relatively low so as not to hinder the movement of the control lever 4. Due to this arrangement, a level for the lubricating oil 47 can be selected in the partial housing 28 that is relatively high, while a level is selected in the partial housing 24 that is relatively low. In the partial housing 10 it can be provided that the level, on the other hand, is reduced again and is practically very low.
• the two sub-housings 10, 28 are provided with a common cover 35 which, as can be seen particularly well from FIG. 5, extends through the side part 12 of the machine frame 11 of the weaving machine to the sub-housing 24 and closes off in a dust-tight manner. After removing this common cover 35, the dividing devices 21 are easily accessible.
• the same number of drive systems consisting of drive 23, drive lever 6, control lever 4 and further lever 9 and the associated coupling elements are located within the common supporting structure 1 in accordance with the number of shedding means 2, for example the heald frames 14. and connecting elements arranged compactly one behind the other.
• All drive systems have a common axis 3 for all control levers 4, a common axis 8 for all levers 9 and a common axis 27 for all drive levers 6.
• the drive lever 6 is mounted in a partial housing 52 which also receives the axis 3 of the control lever 4.
• the attachment of the sub-housing 52 to the side part 12 and the attachment of the sub-housing 24 to the sub-housing 52 is carried out, for example, in the same manner as has been explained for the sub-housing 10 using the exemplary embodiments 1 to 5.
• the partial housing 52 can be provided with an intermediate wall corresponding to the partial housing 10.
• Increasing the number of levers 9, 53 which raise and lower the shaft frame 14 to a plurality of levers is expedient in the case of weaving machines in which weaving is carried out with a large weaving width and / or in which heavy fabrics are woven.
• a coupling rod is provided between the drive lever 6 and the control lever 4, which is formed from two partial rods 57, 58 which are firmly connected to one another. These partial rods 57, 58 are directed obliquely downwards and articulated in the vicinity of the joint 7 to the control lever 4 with the joint 5.
• the connecting rod 22 has also been replaced by a connecting rod divided into two partial rods 59, 60.
• Elements arranged between the control lever 4 and the further lever (s) 9 and 53 and a shed forming means 2, for example a shaft frame 14, do not of course have to have the shape shown in FIGS. 1 to 8.
• a coupling element 66 is guided in each of the vertical guides 26 and is coupled to a hook 67 which is located at the upper end of the shaft frame 14 located.
• the coupling element 66 is provided with a thickened part 68 which ripens into the hook 67.
• spray nozzles 55 are provided for all bearing points and are supplied with oil according to the spray nozzle 43 via supply lines.
• guides 73, 74 are provided for the shaft frame 14 on the partial housing 24.
• the guide 73 can be moved away from the shaft frame 14 in accordance with the direction of the arrow and can be reset in order to be able to remove the shaft frame 14.
• the guides 73, 74 are attached to the top of the partial housing 24 by means of holders 75, 76.
• the holders 75, 76 are detachably connected to the partial housing 24, so that they are only installed in the weaving machine after the supporting structure has been arranged in the weaving machine.
• the axes of rotation 3, 8, 27 and the joints between the levers and the rods are supplied by means of pressure oil.
• pressure oil lines 77, 78, 79 which are indicated by dash-dotted lines, are led from a schematically illustrated pressure oil source 80, for example an oil pump, to connections of axes 3, 8 and 27.
• the axles have outlet openings in the area of the bearings, so that the bearings are supplied with oil, which then drips down into the partial housing.
• Oil channels 81, 82 are provided within the levers and the connecting rods, which branch off from outlet openings of the axes 3, 8, 27 and lead to the individual joints.
• the dimensions of the supporting structure 1 from the partial housing 10, the partial housing 24 and the partial housing 28 or from the partial housing 52 and the partial housing 24 can of course be selected depending on the dimensions of the weaving machine. This applies in particular to the length of the partial housing 24.
• the supporting structure 1 is designed in such a way that half of it not shown preparation means for the insertion of weft threads can be arranged so that the partial housing 10 or 52 can be arranged either on the right or left side of a weaving machine, ie the partial housing 10 or the partial housing 52 can also on the side part 13 of the Machine frame 11 of the loom are attached.
• the supporting structure according to the invention can be used in different types of looms, for example in air jet looms, rapier looms, rapier shooters, water jet looms, projectile looms or other looms.
• the supporting structure according to the invention can also be retrofitted to already existing weaving machines.
• the supporting structure according to the invention can be easily installed in a weaving machine and can also be easily removed again from a weaving machine.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Looms (AREA)
• Spinning Or Twisting Of Yarns (AREA)

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• 2004
  • 2004-03-12 DE DE502004004572T patent/DE502004004572D1/de not_active Expired - Lifetime
  • 2004-03-12 WO PCT/EP2004/002590 patent/WO2004081113A1/fr not_active Ceased
  • 2004-03-12 EP EP04719962A patent/EP1606348B1/fr not_active Expired - Lifetime
  • 2004-03-12 AT AT04719962T patent/ATE369399T1/de not_active IP Right Cessation

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