EP3556920A1 - Rotationsschaftmaschine und webrahmen - Google Patents

Rotationsschaftmaschine und webrahmen Download PDF

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Publication number
EP3556920A1
EP3556920A1 EP19169390.2A EP19169390A EP3556920A1 EP 3556920 A1 EP3556920 A1 EP 3556920A1 EP 19169390 A EP19169390 A EP 19169390A EP 3556920 A1 EP3556920 A1 EP 3556920A1
Authority
EP
European Patent Office
Prior art keywords
plane
lubricant
shaft
section
mouths
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19169390.2A
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English (en)
French (fr)
Other versions
EP3556920B1 (de
Inventor
Julien Murat
Sébastien Communal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Staubli Faverges SCA
Original Assignee
Staubli Faverges SCA
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Publication date
Application filed by Staubli Faverges SCA filed Critical Staubli Faverges SCA
Publication of EP3556920A1 publication Critical patent/EP3556920A1/de
Application granted granted Critical
Publication of EP3556920B1 publication Critical patent/EP3556920B1/de
Active legal-status Critical Current
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Classifications

    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C1/00—Dobbies
    • 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
    • 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
    • D03C1/144—Features common to dobbies of different types linking to the heald frame
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/003—Devices for lubricating machine parts

Definitions

  • the present invention relates to a rotary dobby for a loom, and a loom comprising such a dobby.
  • the invention relates to the field of looms and their machines for forming the crowd, in particular in the field of rotating dobbies for the control of heald frames.
  • the frame and hood of the shedding machines contain mechanical systems that are subjected to high speeds and heavy loads due to the need to operate large frames of the loom.
  • some crowd forming machines namely the rotating dobbies
  • the scanning mechanism selectively couples or decouples the output levers from the drive shaft of the dobby, to link or free the position of each lever to the rotation of the drive shaft.
  • the reading system constitutes a mechanical selector. Each lever can thus individually be moved or held in place according to the desired pattern.
  • EP 1 845 181 A1 discloses an example of rotating dobby for a loom comprising, for each of its blades, that is to say for each of its oscillating levers: an oscillating piece, sometimes called connecting rod, coupled to a heald frame via this blade and associated with an actuating element, sometimes called a cam, mounted idly on a main shaft of the dobby, that is to say a drive shaft; a drive member, in particular a drive disk, integral in rotation with the main shaft; two latches for the rotational coupling of the driving element and the actuating element and control means provided for moving the latches and thus coupling or uncoupling the driving element with the element of actuation.
  • EP 1 845 181 A1 provides for each blade, as control means, a pusher moving the locks, and, to control this pusher, a swing lever, itself controlled by a read actuator represented by an arrow.
  • EP 0 851 045 A1 and EP 1 382 725 A1 describe other examples of dobbies, in which the reading actuators are shown in more detail.
  • the wear of the reading mechanism can in particular lead to the incorrect operation of one or more output levers due to a lack of reading. Then, an armor error is produced, resulting in a visible defect on the textile article produced by the trade.
  • the active lubrication of the parts and their cooling play a decisive role in keeping the machine running smoothly over time.
  • the advantages of lubrication are to reduce the frictional resistance of moving mechanical parts, to evacuate the heat created by friction, to remove metal particles or debris from the contact areas, to reduce operating noise and to protect the parts against oxidation and corrosion.
  • the speed of the pump for mixing the oil is generally subject to rotation of the drive shaft.
  • the pump At low speed of the drive shaft, the pump then has difficulty in providing oil to the upper part of the dobby and therefore to the reading system.
  • it is advisable to avoid favoring too much dispersion of oil in the dobby by the high speed pump, in order to reduce the risk of oil leakage by the sealing zones of the output levers, also located in the upper part, at the hood.
  • EP 3 162 935 A1 discloses a shedding machine comprising a lubrication circuit, a pump and a dispensing member formed by a common lever support shaft.
  • This common shaft is tubular and has radial holes for lubricating the bearings of the common shaft and the bearings of the output levers.
  • this lubrication by the common shaft is insufficient to properly lubricate a reading system, which is at a distance from the common shaft.
  • the dobby may be inclined due to the type of loom, or in the presence of a superstructure above the loom, which can disadvantage some of the mechanics to lubricate.
  • the dobby can be produced with several configurations depending on its integration with the loom.
  • the dobbies are generally produced industrially with two symmetrical configurations, adapted to the type of control of the trade.
  • EP 0 742 298 A1 discloses a weave mechanism for forming the shed on a weaving machine, comprising a support frame which can contain an amount of oil, a drive shaft for driving actuating rods, comprising a fixed axis on which pivots all the oscillating actuating devices and comprising a reading system.
  • a lubrication system is also provided, comprising a pump for feeding a series of transverse lubrication ramps disposed above the fixed axis, on which the oscillating members pivot, and above the motor shaft. .
  • the invention therefore aims to overcome the aforementioned drawbacks of the prior art, by providing a new rotating dobby for which the lubrication of the mechanical reading system is improved, to deliver enough oil through the circuit, and to emit it. amount adapted to the mechanics, regardless of the speed regime of the drive shaft, and despite any additional stress on the dobby, such as an inclination of the dobby.
  • the lubrication system comprises a lubricant dispenser, which is distinct from the common shaft, and which comprises a plurality of lubricant emission mouths, which are supplied with lubricant by the lubrication circuit and which are shifted according to the height direction in relation to the reading system.
  • the dispenser comprises at least two tubular sections each carrying at least one of the emission mouths, the two tubular sections being fluidly connected to each other with a passage section, the passage of lubricant from one section to the other. the other being limited by a partial obstruction of the passage section.
  • the lubricant dispenser of the invention utilizes gravity to provide lubrication for the mechanical reading system, since the mouths of the dispenser are offset in the direction of height relative to the lubrication parts of the mechanical reading system. that is, are located above these parts to be lubricated.
  • the dobby will indeed be arranged so that the height direction is oriented vertically upwards, or with a certain angular inclination relative to this orientation.
  • Each lubricant outlet mouth is thus arranged to discharge lubricant or to spray lubricant onto one or more lubrication parts of the mechanical reading system.
  • the arrangement of the mouths of the dispenser relative to the parts to be lubricated ensures that the parts to be lubricated, whether they are for example lateral or central, will still be better lubricated, compared to the stirring of the prior art. .
  • the mouths are oriented towards the parts to be lubricated and / or that they are arranged near the parts to be lubricated.
  • the presence of several emission mouths ensures that the lubricant is distributed over all the parts to be lubricated, in the manner desired by the designer of the dobby. particularly irrespective of the inclination of the dobby.
  • the arrangement of the mouthpieces ensures that, even if the flow rate of lubricant supplied to the distributor is relatively low, the lubrication is still ensured for some parts to lubricate the most essential, or at least more effectively than in the case of brewing carried out with a low pumping rate, in particular by gravity or by migration of a net of lubricant emitted.
  • the invention also makes it possible to guarantee a distribution of the lubrication on all the central parts to be lubricated, for each blade, which reduces the premature wear and the errors of reading and training of frames in the course of weaving.
  • the mouths are oriented opposite the sealing zones of the dobby, or any other area that should not be exposed to too much lubricant.
  • the lubricant flow rate supplied to the distributor is high, the risk of accidental splashing of lubricant in the direction of these sealing zones is reduced compared to stirring, especially in the central part of the machine. This reduces for example the risk of leakage at the opening of the hood for the passage of the levers.
  • the invention is therefore particularly advantageous for embodiments in which the lubrication system comprises a lubricant pump supplying the distributor with lubricant, and where the flow rate of this pump is subject to the speed of rotation of the shaft. training.
  • the partial obstructor favors the circulation to a first tubular section by limiting the flow of lubricant to a second tubular section via the passage section, to ensure that, even at low operating speed of the pump, the less the first tubular section is supplied with lubricant, to the detriment of the second tubular section.
  • the second tubular section allows, overflow, the discharge of the lubricant overflow of the first tubular section out of the distributor, through the mouths of the second tubular section.
  • the partial obstructor allows a derivation of a portion of the lubricant of the first section to the second section to avoid a superabundance of lubrication by the first section.
  • the invention also relates to a loom comprising a rotary dobby as defined above.
  • the figure 1 shows a rotating dobby 1 according to the first embodiment of the invention, for a loom, itself not shown.
  • Dobby 1 is a shedding machine of the loom, whose function is to operate the loom frames to determine the weave of the fabric produced by the loom.
  • the dobby 1 comprises a frame 3, which constitutes a fixed part of the dobby 1.
  • An orthogonal reference XYZ is defined, including a longitudinal direction X, a transverse direction Y and a direction of height Z, attached to the frame 3 and directed along the three directions of space, in order to better locate the different elements of the dobby 1 in the following.
  • the frame 3 is a rigid protective part of the dobby 1.
  • the frame 3 is advantageously a casting, or possibly a set of mechanically welded parts.
  • a cover, not shown, is advantageously fixed on the frame 3.
  • the frame 3 and the cover form an inner volume contain different internal parts of the dobby 1 defined below, substantially liquid-tight such as lubricant.
  • the frame includes a bottom 5 and a peripheral wall 7.
  • the bottom 5 extends in a plane parallel to the X and Y directions.
  • the dobby 1 is intended to be fixed and coupled to the structure of the loom for use in weaving different textile articles.
  • the bottom 5 is advantageously intended to be oriented in a horizontal plane, or with a slight angular inclination with respect to such a horizontal plane, when using the dobby 1.
  • the bottom 5 is positioned towards the bottom of the dobby 1 during use, even if it is not horizontal. It could nevertheless be expected that the bottom is inclined with respect to the directions X and Y: however, in this case, it is nevertheless provided that the bottom is located downwards when using the dobby 1.
  • the peripheral wall 7 extends over the entire contour of the bottom 5 and rises from the bottom 5 in the direction of the direction Z.
  • the cover is attached over the wall 7 to close the frame 3.
  • the frame 3 also comprises two plates 9 and 10 of support, located in the interior volume formed by the bottom 5, the wall 7 and the cover.
  • the plates 9 and 10 project from the bottom 5 being fixed relative thereto.
  • the plates 9 and 10 respectively extend in a plane P9 and in a plane P10 parallel and distant from each other, called “support planes".
  • the planes P9 and P10 are parallel to the X and Z directions.
  • the plates 9 and 10 extend in the direction Z relative to the bottom 5, and in a direction opposite to the direction Z relative to the cover.
  • the planes P9 and P10 are defined by the frame as vertical planes, or close to the vertical, and parallel to each other, which may especially be the case if the dobby 1 is not not inclined to the horizontal. At least, the planes P9 and P10 pass through the bottom 5, for example being perpendicular to the bottom or slightly inclined relative to the bottom 5.
  • the dobby 1 comprises a common shaft 12, sometimes called “shaft of the levers", supported by the frame 3, inside this frame 3. More specifically, the shaft 12 is shifted in the direction Z relative to the bottom 5 and in a direction opposite to the Z direction relative to the hood, being surrounded by the wall 7, in the X and Y directions. In this case, the shaft 12 is supported at its ends by the plates 9 and 10, so that it extends between the planes P9 and P10. Preferably, the shaft 12 is perpendicular to the planes P9 and P10, that is to say parallel to the direction Y. The shaft 12 is preferably fixed in rotation about its axis with respect to the frame 3.
  • the plane P9 is located at the range of the shaft 12 on the plate 9, in the direction Y.
  • the plane P10 is located at the range of the shaft 12 on the plate 10 according to direction Y.
  • the dobby 1 comprises output levers 14, sometimes called “blades”.
  • Each lever 14 is preferably of flat and thin shape, for example as a plate.
  • Each lever 14 extends in a respective lever plane P14, parallel to the X and Z directions, or at least perpendicular to the shaft 12, each lever plane being positioned between the planes P9 and P10.
  • Each lever plane extends according to the flat shape of the lever 14 concerned.
  • the levers are arranged side by side along the shaft 12, in the Y direction, being adjacent.
  • Two levers 14, called “extreme levers”, located at the ends of all the levers of the outlet dobby, are adjacent to the plates 9 and 10.
  • the plates 9 and 10 that is to say say their respective plane P9 and P10, borders the following of levers 14.
  • On the figure 1 only two levers 14, namely the two extremal levers, are represented. In practice, for example, between 6 and 16 levers can be provided.
  • Each lever 14 is supported by the shaft 12 by means of a pivot connection 13 such as a bearing or a bearing, so as to be individually rotatable relative to the frame 3 around the shaft 12. in other words, each lever 14 can be rotated independently of the other levers 14 around the shaft 12.
  • the levers 14 are away from the bottom 5 in the Z direction.
  • Each lever 14 is partially contained in the frame 3, for a first portion carried by the shaft 12, and also comprises a second arm-shaped portion 15 which extends out of the dobby 1 through the hood.
  • the cover comprises openings advantageously provided with sealing means. Via the Part 15, each lever 14 can be coupled to a heald frame of the loom, to actuate and form the shed, through a transmission mechanism not shown, thus determining the weave of the fabric crafted by the craft.
  • the dobby 1 comprises a drive shaft 17, sometimes called "main shaft". Tree 17 is omitted from figure 1 , only its axis Y17 being shown, for the sake of clarity of the drawing. The tree 17 is visible in itself on the Figures 2 to 4 .
  • the shaft 17, that is to say its axis Y17 is perpendicular to the planes P9 and P10, that is to say parallel to the direction Y and to the shaft 12.
  • the shaft 17 is supported by the frame 3, inside this frame 3. More specifically, the shaft 17 is offset in the direction Z relative to the bottom 5 and in a direction opposite to the direction Z relative to the hood, being surrounded by the wall 7, according to the X and Y directions. In this case, the shaft 17 is supported at one end in the Y direction, by the plate 10, via a pivot connection of the plate 10, and to a part intermediate of the shaft 17 by the plate 9, via a pivot connection of the plate 9.
  • the shaft 17 extends between the planes P9 and P10.
  • the shaft 17 extends beyond the plane P10 in a direction opposite to the direction Y, in order to be mechanically to means, not shown, for driving the shaft 17 in rotation with respect to the frame 3.
  • the shaft 17, whose rotation depends for example on the rotation of a modulator, and a perpendicular control shaft not shown, has a driving function for driving the levers 14 in rotation around the shaft 12 by 3.
  • the dobby 1 comprises, for each lever 14, a mechanical drive device 19, one of which is visible on the figure 4 .
  • Each mechanical drive device 19 is a mechanical transmission and is designed to secure, i.e. bind, the rotation of the shaft 17 relative to the frame 3 to an oscillating movement of each lever 14 in rotation around the shaft 12. This oscillation is performed while the loom performs the weaving.
  • Each drive device of the dobby can selectively move a lever 14, while the lever 14 is coupled by a mechanical transmission device not shown to a frame of the craft, as explained above.
  • each drive device 19 connects the shaft 17 with one of the levers 14.
  • each device of FIG. drive 19 preferably extends entirely, or at least substantially, in the same plane P14 as its lever 14 associated, so that the size of the lever 14 and its device associated drive along the Y direction is minimal to allow the stacking of ten to twenty levers 14 between the planes P9 and P10.
  • Each drive device 19 is contained in the frame 3, that is to say is shifted in the direction Z relative to the bottom 5 and in a direction opposite to the direction Z relative to the hood, being surrounded by the wall 7, according to the X and Y directions.
  • the rotation of the shaft 17 sets the lever 14 in motion.
  • the lever 14 is not set in motion by the shaft 17, that the shaft 17 is rotating or stopped.
  • the lever 14 is held in a fixed position relative to the frame 3, in which the lever 14 has been left at the time of tilting in decoupled configuration. For example, this position corresponds to a high or low position of the associated frame forming the crowd.
  • the plate 23 In coupled configuration, the plate 23 is rotationally fixed, that is to say fixed in rotation, relative to the disk 21, so as to be driven by the shaft 17. In this coupled configuration, the plate 23 constitutes a driving crank of the rod 25, which in turn drives the lever 14 in oscillation motion, due to the eccentricity of the axis Y23 relative to the axis Y17.
  • the plate 23 In decoupled configuration, the plate 23 is free to rotate relative to the disk 21, so that any rotation of the shaft 17 causes no movement of the plate 23. Consequently, no movement of the rod 25 and the lever 14 n is produced by rotating the shaft 17 in this configuration.
  • a coupling / decoupling system of the driving device 19 comprising for example a pusher and a pair of bolts actuated by the pusher for securing and disengaging the plate 23 and the disk 21 in rotation.
  • An example of a coupling / decoupling system with locks and pushers, not shown here, is detailed for example in EP 1 845 181 A1 . Any other mechanically equivalent system for securing and detaching in rotation the plate 23 and the disc 21, such as a system of hooks, can be implemented.
  • driving devices 19 operating different from that described in the present example, without departing from the scope of the invention, provided that these drive devices 19 have the configurations coupled and decoupled above.
  • the dobby 1 further comprises a mechanical reading system 30, which has a function of mechanical selector.
  • the reading system 30 is contained in the frame 3. More specifically, the reading system 30 is shifted in the direction Z relative to the bottom 5 and in a direction opposite to the direction Z relative to the hood, being surrounded by the wall 7, according to the directions X and Y. As visible on the figure 4 , this reading system 30 extends mainly in the direction Z with respect to the drive devices 19 and the shaft 17, partially surrounding the shaft 17. Preferably, part of the reading system 30 also extends in the direction X relative to the shaft 17. In the direction Y, the reading system extending from the plane P9 to the plane P10, that is to say along the shaft 17, of platinum 9 to platinum 10 included. The spatial positioning of the reading system 30 is clearly visible on the Figures 1 to 4 .
  • the reading system 30 is configured to selectively switch the drivers 19 between the coupled configuration and the decoupled configuration.
  • each drive device 19 can be individually switched from one configuration to another by the reading system 30, depending on the crowd to be formed.
  • the reading system 30 comprises mechanical members that act mechanically directly on the coupling / decoupling system of each drive device 19.
  • reading system 30 The following describes a preferred embodiment of a reading system 30, although other types of reading system 30 may be realized.
  • the reading system 30 comprises a shaft 34, called “reading tree”, visible on the Figures 1 to 5 which extends between the planes P9 and P10 being orthogonal thereto.
  • the shaft 34 is preferably parallel to the shafts 12 and 17.
  • the shaft 34 is carried at its ends 36 and 38 by the plates 9 and 10 and is advantageously fixed with respect to the frame 3.
  • the shaft 34 comprises ends 36 and 38 respectively traversed by the planes P9 and P10.
  • the shaft 34 is located away from the bottom 5 and the shaft 17 in the Z direction. In other words, the shaft 34 is located between the hood and the shaft 17. Approximately, the shaft 34 is even preferably positioned aligned in the Z direction relative to the shaft 17. The shaft 34 is shifted both along the X and Z directions relative to the shaft 12.
  • the reading system 30 comprises for each driving device 19, a respective reading arm 32, one of which is visible on the figure 4 .
  • Each reading arm 32 extends in a plane P32 parallel to the plane P14 of the driving device 19 to be tilted, each plane P32 being situated between two successive planes P14 along the direction Y, as illustrated on FIG. figure 1 .
  • the arm 32 is thus partially covered by the connecting rod 25.
  • each arm 32 has two parts 40 and 42 arranged in "V” or “L”, extending from the shaft 34.
  • Each arm 32 is rotatably mounted around the shaft 34 relative to to the frame 3, being supported by the shaft 34 by means of a pivot connection.
  • engagement position the free end of the part 40 comes into contact with the coupling / decoupling system so as to allow the drive device 19 to continue in the decoupled configuration.
  • release position the free end of the part 40 releases the system of coupling / decoupling so as to tilt or hold the driver in the coupled configuration.
  • the reading system 30 comprises a shaft 44, called “common leveling tree", visible on the Figures 1 to 4 which extends between the planes P9 and P10 being orthogonal thereto.
  • the shaft 44 is preferably parallel to the shafts 12 and 17.
  • the shaft 44 is carried at its ends 46 and 48 by the plates 9 and 10 and is advantageously fixed with respect to the frame 3.
  • the shaft 44 comprises ends 46 and 48 respectively traversed by the planes P9 and P10.
  • the shaft 44 is located away from the bottom 5 in the Z direction, more particularly between the bottom 5 and the cover.
  • the shaft 44 is offset in the X direction relative to the shaft 17, either aligned with the X direction, or slightly offset in the Z direction relative to the shaft 17. In any case, according to the X direction, the shaft 17 is located between the shaft 44 and the shaft 12.
  • the reading system 30 comprises for each driving device 19, a respective secondary reading arm 62, one of which is visible on the figure 4 .
  • Each arm 62 extends in the plane P32. On the figure 4 the arm 62 is thus partially covered by the connecting rod 25.
  • each arm 62 has two parts 70 and 72 arranged in "V” or “L”, extending from the shaft 44.
  • Each arm 62 is rotatably mounted around the shaft 44 relative to to the frame 3, being supported by the shaft 44 by means of a pivot connection. Similar to the arms 32, each arm 62 is movable between a “disengagement position” and an “engagement position", in which the free end of the part 70 is disengaged or comes into contact with a part of the device. drive 19 to maintain the coupled or decoupled configuration, or to switch from one configuration to another.
  • the engagement position is reached, from the release position, by rotation of the arm 62 in a direction R62 opposite to the direction R32.
  • the parts 4 and 70 of the arms 32 and 62 are diametrically opposed to the shaft 17, while the parts 42 and 72 are adjacent.
  • the reading system 30 also comprises a leveler 50, which can be described as "reading stop", visible at Figures 1 to 5 .
  • the leveler 50 is preferably in the form of a bar or a shaft parallel to the shaft 34 and / or parallel to the shaft 17.
  • the leveler 50 extends between the two plates 9 and 10, c ' that is, between the planes P9 and P10, so as to cross all the planes P32.
  • the leveler 50 is positioned near the portions 42 and 72 of the arms 32 and 62, offset in the X and Z directions relative to these portions 42 and 72. Accordingly, the rotation of all the arms 32 is bounded, c ' that is to say limited, by the leveler 50, in the same direction of rotation R32.
  • each arm 32 comprises, at its free end, a stop lug 43 which abuts against the leveler 50.
  • the rotation of the arms 62 is bounded in the direction rotation R62.
  • the portion 72 of each arm 62 comprises, at its free end, a stop tab 73 which abuts against the leveler 50.
  • the reading system 30 comprises, respectively for each arm 32, an elastic return member 33, one of which is visible on the figure 4 and of which two "extremals" are represented on the figure 1 , the others being omitted from the figure 1 .
  • Each member 33 exerts an elastic return force, provided for example by an axial compression spring, embedded in the member 33, in rotation along the direction R32 of the arm 32 concerned.
  • the arm 32 tends to be brought back and held in abutment against the leveler 50 by the member 33.
  • the reading system 30 advantageously comprises a guide structure 35, which is fixed on the frame being shifted in the direction Z with respect to the arms 32.
  • the structure 35 is preferably fixed to the plates 9 and 10 at its ends in the Y direction
  • the structure 35 is advantageously in the form of a folded sheet, advantageously marrying the L-shaped or V-shaped arms 32 so as to cover them.
  • a portion 39 of the structure 35 is preferably flat and extends in a plane parallel to the plane containing the proper axes of the shafts 34 and 44.
  • the structure 35 preferably comprises a series of guides, formed in this case by notches 37, to guide the rotation of each arm 32 and ensure their maintenance in their respective plane P32.
  • three respective slots 37 are preferably provided for each arm 32.
  • Three respective guide tabs belonging to each arm 32 circulate respectively in these three notches 37 to provide guidance, including a tab 38 and the stop tab 43.
  • each arm 32 is elastically subjected to the return forces of its respective member 33 via the guide lug 38, passing through the portion 39 of the structure 35, as visible on the figure 4 .
  • the portion 39 of the structure 35 is preferably interposed between the members 33 and the arms 32.
  • the members 33 are preferably fixed on the portion 39 of the structure 35.
  • the reading system 30 comprises, respectively for each arm 62, an elastic return member 63, one of which is visible on the figure 4 and of which two "extremals" are represented on the figure 1 , the others being omitted from the figure 1 .
  • Each member 63 exerts an elastic return force, provided for example by an axial compression spring, embedded in the member 63, in rotation in the direction R62 of the arm 62 concerned.
  • the arm 62 tends to be brought back and held in abutment against the leveler 50 by the member 63.
  • the reading system 30 advantageously comprises a guide structure 65, fixed on the frame being offset in the Y direction relative to the arms 62.
  • the structure 65 is for example fixed to the plates 9 and 10 at its ends in the direction Y.
  • the structure 65 is advantageously in the form of a folded sheet, advantageously marrying the L-shaped or V-shaped arms 62 so as to cover them.
  • a portion 69 of the structure 65 is preferably flat and extends in a plane parallel to the plane containing the proper axes of the shafts 34 and 44.
  • the structure 65 preferably comprises a series of guides, formed in the present case by notches 67, to guide the rotation of each arm 62 and ensure their maintenance in their respective plane P32.
  • three respective notches 67 are preferably provided for each arm 62.
  • Three respective guide lugs of each arm 62 circulate respectively in these three notches 67 to provide guidance, including a tab 68 and the stop tab 63.
  • each arm 62 is elastically subjected to the return forces of its respective member 63 via the guide lug 68, passing through the portion 69 of the structure 65, as visible on the figure 4 .
  • the portion 69 of the structure 65 is preferably interposed between the members 63 and the arms 62.
  • the members 63 are preferably fixed on the portion 69 of the structure 65.
  • the respective portions 39 and 69 of the structures 35 and 65 are advantageously coplanar.
  • the leveler 50 is positioned between the two structures 35 and 65, almost in a plane formed by the shafts 34 and 44.
  • the reading system 30 comprises a leveling arm 80 and a leveling arm 90, visible on the figures 1 , 2 and 3 .
  • at least one of the two arms 80 and 90 is provided.
  • Each arm 80 and 90 is carried by a respective end 46 and 48 of the shaft 44, being rotatable about the shaft 44 relative to the frame 3.
  • Each arm 80 and 90 preferably extends respectively in one of the planes P9 and P10, that is to say at the height of the plates 9 and 10 along the direction Y.
  • Each arm 80 and 90 extends along the wafer, that is to say the perimeter or contour, of one of the plates 9 and 10 in their respective plane P9 and P10, being shifted in the X direction relative to the plates 9 and 10.
  • All the arms 62 are arranged between the two arms 80 and 90, in the direction Y.
  • the two arms 80 and 90 have a shape similar to the arms 62, that is to say an L-shape or in V surrounding the shaft 17.
  • the arms 80 and 90 comprise a respective portion 81 and 91, and a respective portion 82 and 92, which extend from the shaft 44 and are arranged in a V-shape. in their respective plane P9 and P10.
  • the parts 81 and 91 support the leveler 50 by its two respective ends, the leveler 50 being thus fixed to each of the arms 80 and 90 so as to constitute with these arms 80 and 90 an assembly that is integrally rotatable about the shaft 44 compared to the frame.
  • the attachment of the leveler 50 to the arms 80 and 90 is effected by means of two respective screws 84 and 94.
  • Each screw 84 and 94 is respectively mounted in a radial tapping through the leveler 50 and screwed respectively into one of the arms 80 or 90.
  • the reading system 30 also comprises two cams 83 and 93, supported by the shaft 17, integral in rotation with this shaft 17.
  • the cams 83 and 93 are omitted from the figure 1 but are respectively visible to Figures 2 and 3 .
  • the cams 83 and 93 are disposed at the ends of the shaft 17, that is to say in the planes P9 and P10, respectively at the height of the arms 80 and 90, in the direction Y.
  • the portion 81 and 91 of the arms 80 and 90 respectively carries a roller in rolling contact with the respective race of the cams 83 and 93.
  • the shaft 17 therefore actuates the assembly formed by the arms 80 and 90 and by the leveler 50, in rotation around the 44, via the cams 83 and 93.
  • the respective tread of the cams 83 and 93 are essentially circular, except at two diametrically opposite depressions.
  • the leveler 50 is in a first position.
  • the respective roller of the arms 80 and 90 rolls on one of the two depressions of the respective tread of the cams 83 and 93, the leveler 50 passes into a second position, shifted in a direction F50 relative to the first position.
  • the direction F50 is oriented in the X and Z directions, more precisely in an almost orthogonal manner, in the plane comprising the proper axes of the shafts 34 and 44, opposite the bottom 5.
  • This displacement is obtained by a rotation of the arms 80 and 90 according to a sense R50 illustrated on the figure 2 , opposite to R32.
  • the assembly formed by the arms 80 and 90 and by the leveler 50 is driven in oscillation between the two distinct positions twice per shaft revolution 17, since two depressions are formed on the cams 83 and 93.
  • the reading system 30 preferably comprises two resilient return members 85 and 95, called “elastic leveling return members” respectively supported by the plates 9 and 10 in the planes P9 and P10.
  • Each member 85 and 95 exerts an elastic return force against the leveler 50, at the ends of this leveler 50 in contact with the fastening screws of the leveling shaft 44 and the leveling arms 80 and 90. These forces are directed according to the direction F50.
  • the members 85 and 95 tend to keep the leveler in its second position, represented in FIGS. Figures 2 to 4 , which makes it possible to maintain the respective contact between the cams 83 and 93 and the rollers of the arms 80 and 90, in particular during the passage of the depressions to raise the shaft 50 in its second position.
  • the leveler 50 When the leveler 50 is in its first position, i.e. in a direction opposite to the direction F50, it keeps the arms 32 and 62 in the disengagement position where the parts 40 and 70 are away from the coupling / decoupling system of their respective drive device 19, that is to say radially away from the shaft 17.
  • the leveler 50 When the leveler 50 is in its second position illustrated in Figures 2 to 4 , that is to say, radially furthest from the shaft 17, the leveler 50 allows, for each lever 14, one of the arms 32 and 62 to adopt the engagement position, by rotation respectively in the direction R32 and R62. In this engagement position, the parts 40 and 70 come into contact with the coupling / decoupling system of the respective drive device 19 of the arms 32 and 62, in order to engage the disengagement of the shaft 17 and the eccentric plate 23
  • This second position of the leveler 50 is reached twice per revolution of shaft 17, because of the two depressions carried by each cam 83 and 93.
  • the arms 32 and 62 are brought into this engagement position respectively by the members 33 and 63.
  • the reading system 30 selects which lever 14 to move under the action of the shaft 17, by electronic control of the actuator 100 and mechanical movement of the arms 32, 62, 80 and 90, and the leveler 50 through the shaft 17 itself.
  • the reading system 30 and the driving devices 19 may be modified with respect to the example illustrated here, depending on the application.
  • the dobby 1 also comprises a system for lubricating moving parts in the frame 3 and their mutual contacts.
  • the lubrication system comprises a lubrication circuit 111 which advantageously circulates a liquid lubricant in the frame 3, such as a lubricating oil.
  • This lubrication system comprises a pump 110 for moving the lubricant through the lubrication circuit 111.
  • the pump 110 is advantageously driven at the same time as the shaft 17, for example by the control shaft of the machine, or by an actuator external to the dobby 1, driving the shaft 17.
  • the flow of lubricant supplied by the pump 110 therefore depends essentially on the speed of rotation of the shaft and the incidence of the loom. In other words, the speed of the shaft 17 and the pump are preferentially related. The higher the speed of the pump 110, the higher the flow rate in the circuit 111.
  • the invention therefore provides the best use of the low flow available to supply the parts to lubricate the machine, sensitive to the lack of lubricant.
  • the pump 110 is advantageously arranged in the frame 3, for example being fixed to the bottom 5.
  • the pump 110 is preferably positioned along the axis Y17, next to the plate 9, being shifted in a direction opposite to the direction Y with respect to the plate 9.
  • the plane P10 of the plate 10 of the dobby 1 is therefore opposed to the pump 110 and to the control shaft with respect to the plane P10 of the plate 10.
  • the lubrication system also advantageously comprises a filter 112 and a strainer 114 connected in series to the pump 110 via conduits of the lubrication circuit 111.
  • the filter 112 and the strainer 114 are supported by the frame 3.
  • the strainer 114 is connected to the pump 110 upstream, in consideration of the direction of flow of the lubricant in the lubrication circuit 111, while the filter 112 is connected downstream.
  • Lubricant is contained within the frame 3, resting or dripping on the bottom 5, which forms a lubricant reserve of the lubricant system. Under the action of the pump 110 driven by the shaft 17, this lubricant is sucked via the strainer 114 to the pump 110, in order to then be sent to the filter 112 and then to one or more distributor (s) of lubrication system lubricant, via the lubrication circuit 111.
  • the shaft 12 forms one of these distributors.
  • the shaft 12 is hollow and diffuse lubricant for the bearings 13 via orifices distributed along the shaft 12. More details are given on such operation in EP 3 162 935 A1 .
  • the lubrication system comprises a lubricant distributor 120, which is separate from the shaft 12, for lubricating the reading system 30, as well as optionally, possibly corollary, the drive devices 19.
  • the distributor 120 is advantageously a separate member of the control shaft, the main shaft 17, the read shaft 34, the common leveling shaft 44 and the leveler 50.
  • the connections of the lubrication system to ensure the transport and circulation of the lubricant between the various components, namely in particular the strainer 114, the filter 112, the pump 110, the distributor 120 and the shaft 12, is provided by several conduits.
  • Lubricant belonging to the lubrication circuit 111. These lubricant ducts internal to the frame 3. Once the lubricant dispensed by the distributor or distributors, in particular by the distributor 120, it is deposited or trickles on the bottom 5 by gravity, it being understood that the bottom 5 is oriented downwards for the use of the dobby 1.
  • the distributor 120 preferentially forms a rigid integral assembly, which can thus be installed in one piece in the dobby 1.
  • the distributor 120 is made of synthetic plastic material.
  • the dispenser 120 comprises a plurality of lubricant emission mouths for lubricating central parts of the reading system 30, located between the support planes P9 and P10 of the frame, and side portions. of the reading system, located in the support planes P9 and / or P10 of the reading system 30. These parts include the parts to lubricate by gravity.
  • the distributor 120 is fixed to the frame 3. In particular, the distributor 120 is fixed on the portion 39 of the guide structure 35. Thus, the distributor 120 is offset in the direction Z relative to this structure 35. The outer envelope of the distributor 120 is generally shifted in the direction Z, and therefore above, the outer casing of the reading system 30. In this offset configuration, the lubricant emission mouths are in line with the parts to be lubricated . This makes it possible to favor the lubricant drop in the opposite direction of the Z direction, in a direct and precise manner on the sensitive mechanical zones, unlike coarse mixing or coagulation lubricant solutions.
  • the distance between the plane defined by the shafts 34 and 44 and the mouths of the distributor 120 is between 5 mm (millimeters) and 50 mm, this distance being measured parallel to the orthogonal of the plane defined by the Preferably, this distance is measured from the lowest lubricant emitting mouth of the distributor 120.
  • This distance is sufficiently high not to impede the circulation of lubricant and the heat exchange of the parts. while being low enough that the lubricant precisely reaches the parts to be lubricated.
  • the above-mentioned distance ensures that the dispenser does not interfere with the operation of the moving parts in the dobby, nor hinders access to the constituent parts of the reading system, in particular the central and lateral parts, for example for maintenance.
  • the attachment of the distributor 120 is advantageously provided by snapping, the distributor 120 having for example two latching tabs 126 engaging in the orifices 128 of the part 39, at respective height of the planes P9 and P10 in the direction Y.
  • the distributor 120 is therefore particularly easy to install on the frame 3.
  • this attachment is removable so that the distributor 120 can be removed from the dobby 1, in particular to be cleaned or changed.
  • the attachment may be made at another point of the frame 3, such as the plates 9 and 10, and / or by another method of attachment that snap, removable or permanent, for example a fastening screw.
  • the dispenser 120 comprises only two assembled parts, namely a base 122, visible on the Figures 1 to 8 and 10 to 12, and a cover 124, omitted from figures 1 , 6 and 8 to better show the inside of the distributor 120, and visible on the Figures 2 to 5 , 7 and 9 .
  • the base 122 is the lower part of the distributor 120, located above the frame-side plane P120
  • the cover 124 is the lower part of the distributor located below the plane P120 on the cover side. In other words, the cover 124 is shifted in the direction Z relative to the base 122.
  • the parts 122 and 124 are assembled, that is to say joined, at a joining plane P120, parallel to a plane comprising the proper axes of the shafts 34 and 44, or at least parallel to the Y direction, in particular to the Y17 axis.
  • the plane P120 is inclined relative to the plane formed by the X and Y directions, between about 35 and 55 ° around the Y direction.
  • This distributor 120 is therefore particularly easy to manufacture and disassemble for maintenance.
  • the joint between the parts 122 and 124 is preferably sufficiently adjusted to be sealed to the lubricant during its high-flow circulation in the distributor 120. This snapping is preferably removable to allow the dismantling of the part 124.
  • hooks 123 and grooves 125 of the present example may be interchanged, or arranged differently depending on the application.
  • other modes of mutual attachment of the parts 122 and 124 may be provided, providing a removable or permanent attachment of the parts 122 and 124.
  • the tabs 126 are advantageously provided on the base 122, as shown in FIG. figure 6 .
  • the dispenser comprises several support elements 127, such as ribs or feet, advantageously formed of material with the base 122, being projecting towards the structure 35.
  • the ribs are preferred because they further strengthen the rigidity of the distributor 120.
  • the elements 127 project from the base 122 so orthogonal to the plane P120 opposite the direction Z. The distributor 120 rests on the part 39 via these elements 127.
  • the distributor 120 advantageously comprises positioners 129, preferably two positioners 129, which are formed protruding from one of the ribs 127. These positioners 129 are respectively inserted in the orifices 128, that is to say through the structure 35, to ensure that the positioning of the distributor 120 is correct in the plane P120.
  • the distributor 120 includes lubricant circulation ducts therein.
  • the conduits are intended to distribute and conduct lubricant supplied by the pump 110 into the distributor 120 to dispense the lubricant.
  • these ducts comprise five tubular sections, namely a central section 140 and four lateral sections 141, 142, 143 and 144. The presence of sections 142 and 144 is preferred but optional.
  • each section 140, 141, 142, 143 and 144 is essentially, if not totally, rectilinear.
  • Each section has a tubular cross section, preferably circular or ovoid, as shown for example on the figure 9 , to form one of the lubricant conduits of the distributor 120.
  • each section 140, 141, 142, 143 and 144 that is to say each lubricant line of the distributor 120 extends in the plane P120, that is to say that all the cross sections of the ducts are crossed by the plane P120.
  • each section, over its entire extent, is formed by the combination of the base 122 and the cover 124, the join is advantageously flat.
  • the lubricant conduit network of the distributor 120 is planar.
  • the central section 140 extends substantially parallel to the Y direction, in particular parallel to the Y17 axis. More particularly, as illustrated in the figures, more than the majority of the length of the section 140, in particular in the central part of the section 140, is rectilinear and parallel to the direction Y.
  • the section 140 at least for its rectilinear part, is offset in the direction Z with respect to the reading system 30, in particular being aligned in the Z direction with the leveler 50, and / or with the tabs 43 and / or with the movable stops 102.
  • the section 140, at least for its rectilinear part is aligned with an edge 41, itself parallel to the Y direction, of the structure 35.
  • the section 140 is positioned in the alignment of an orthogonal plane with the part 39 and passing through the edge 41.
  • the edge 41 is a fallen edge, that is to say curved, orthogonally with the portion 39 being directed towards the bottom 5 of the frame 3. More generally, the edge 41 forms the notches 37 guiding the tab 43 of the arms 32.
  • the section 140 connects the plane P9 to the plane P10, or at least extends between the plates 9 and 10, in the direction Y.
  • the sections 141, 142, 143 and 144 extend parallel to a direction S120 of the plane P120, the direction S120 being orthogonal to that of the section 140, that is to say to the direction Y.
  • the direction S120 is directed in the X direction, inclined towards the bottom 5.
  • the section 141 is a lateral section. It extends from one end of the section 140 turned towards the plane P9, being fluidly connected to the section 140 at this location. In the vicinity of this fluidic connection, the section 140 advantageously has a non-rectilinear part, preferably curved, in order to optimize the fluidic conduction of the lubricant from the section 141 to the segment 140.
  • the section 141 is preferably completely straight and extends since its connection with the section 140, in the direction S120.
  • the section 142 is a lateral section. It extends from the same end of the section 140 as the section 141, being fluidly connected to both the sections 140 and 141 at this point.
  • the section 142 is preferably completely straight and extends, since its connection with the section 140, in a direction opposite to the direction S120, being preferentially coaxial with the section 141.
  • the section 142 preferably carries one of the tabs 126 and one of the positioners 129.
  • the section 143 is a lateral section. It extends from another of the two ends of the section 140, turned towards the plane P10, being fluidly connected to the section 140 at this location. In the vicinity of this fluidic connection, the section 140 advantageously has another non-rectilinear part, preferably curved, in order to optimize the fluidic conduction of the lubricant from the section 140 to the segment 143.
  • the section 143 is preferably completely straight and extends, since its connection with the section 140, in the direction S120.
  • the section 144 is a lateral section. It extends from the same end of the section 140 as the section 143, being fluidly connected to both the sections 140 and 143 at this point.
  • the section 144 is preferably completely straight and extends, since its connection with the section 140, in a direction opposite to the direction S120, being preferentially coaxial with the section 143.
  • the section 144 preferably carries one of the tabs 126 and one of the positioners 129.
  • the sections 140, 141, 142, 143 and 144 are preferably arranged to form an "H" shaped array in the P120 plane.
  • the section 141 comprises a connection mouth 146, connected to an intake duct 147 belonging to the lubrication system, and fluidly connecting the distributor 120 to the pump 110, which supplies the distributor 120 with lubricant via the section 141.
  • the mouthpiece 146 is preferably directed in the direction S120, coaxially with the section 141.
  • the mouth 146 is preferably positioned in the plane P9, as in the illustrated configuration.
  • the lateral section 141 is also preferably shifted vertically in the direction Z with respect to the plate 9, and even more preferably with respect to the guiding structures 35 and 65, the shafts 34 and 44 and the arms 32 and 62, so that it does not interfere with access to the reading system 30.
  • the lateral section 141 is a lubricant supply section for the distributor 120.
  • the lateral section 141 is aligned with the plane P9 so that its connection mouth 146 is located in the plane P9 and provides a connection to the intake duct 147 in or parallel to the plane P9, without the intake duct 147 extending and undulating neither of the one side nor the other of the plate 9.
  • interventions can take place on the machine at the rotating parts, leveling arm side 32 and 62 or output levers side 14 relative to the plate 9, without the need to disassemble the distributor 120.
  • it 147 connected in the plane P9 or close to the plane P9, on the top of the plate 9, does not interfere with access to the mechanical elements located along the plate P9.
  • the section 143 is aligned with the plane P10 and offset vertically with respect to the plate 10.
  • the section 143 includes a connection mouth 149, which in this example serves as a lubricant outlet, carrying a flow reduction plug or "diabolo".
  • the mouth 149 could be completely closed.
  • the mouthpiece 149 may be partially or completely closed by an attached component, such as a plug or diabolo.
  • the dispenser 120 may comprise, in an integrated manner to the mouthpiece 149, particularly integrally in the same material as said mouthpiece 149, a partial or complete partition, to partially or completely close the mouth 149. This partition is for example formed during the manufacture of the distributor 120 by injection.
  • the mouth 149 is preferably directed in the direction S120, coaxially with the section 143 and is therefore parallel to the mouth 146.
  • the mouth 149 is preferably positioned in the plane P10, as in the illustrated configuration.
  • the mouth 149 could, alternatively to the mouth 146, serve as an inlet mouth, and the section 143 serve as a supply section for the distributor 120.
  • the mouth 149 would be fluidically connected to the intake duct 147 in place of the mouth 146.
  • the mouths 146 and 149 of the lateral sections 141 and 143 advantageously have the same shape, or at least one form compatible with the same conduit 147.
  • the arrangement and the orientation of the mouths 146 and 149 is advantageously symmetrical with respect to a median plane of symmetry P121 of the distributor 120, orthogonal to the plane P120 and visible on the figure 7 .
  • the same distributor 120 can be mounted on two different dies, inverted disposition.
  • the plane P121 is advantageously parallel to the planes P9 and P10.
  • the sections 141 and 142 are respectively symmetrical to the sections 143 and 144 with respect to the plane P121.
  • all or part of the dispenser mounting elements including in particular the elements 126, 127 and 129, are symmetrical with respect to the plane P121.
  • the section 140 advantageously including its rectilinear and curved parts, is preferably symmetrical with respect to the plane P121.
  • Each lubricant outlet mouth is shifted in the Z direction relative to one or more of these lubricating portions to discharge or spray lubricant thereon.
  • the emission mouths are respectively vertically offset above the parts they are configured to lubricate. This requires that each emission mouth is shifted in the direction Z relative to the part to be lubricated, being aligned either parallel to the direction Z relative to the part to be lubricated, or slightly shifted in the directions X and / or Y.
  • all lubricant emission mouths of the dispenser 120 are oriented away from the Z direction, i.e. toward the bottom 5. This includes that the mouths are rotated parallel to the Z direction , or being slightly inclined with respect to the Z direction. More generally, it may be preferable for each mouthpiece to point towards one or more of the lubrication parts of the reading system 30. In the present example, each mouth is oriented in a direction orthogonal to the plane P120, directed towards the bottom 5.
  • the parts to be lubricated of the reading system 30 are preferably the sliding contact zones in rolling contact and / or serving as a contact surface for abutment. Lubrication may be aimed at reducing the coefficient of friction of the part to be lubricated. Lubrication can be used to cool the part to be lubricated.
  • the parts to be lubricated centrally have to be located between the planes P9 and P10, more precisely between the plates 9 and 10, parallel to the direction Y.
  • the mouths of the distributor 120 preferably comprise central mouths 130.
  • These mouths 130 are preferably formed by the base 122, as shown in particular on the Figures 5 and 6 .
  • all the mouths 130 are carried and fed by the central section 140, in particular by its rectilinear part.
  • the mouths 130 are distributed along the section 140.
  • the mouths 130 have a symmetrical distribution with respect to the plane P121.
  • These mouths 130 are directed in a direction orthogonal to the plane P120 and the plane comprising the proper axes of the shafts 34 and 44, being turned in the opposite direction of the direction Z.
  • the mouths 130 are distributed along an axis Y130 shown on the figures 1 and 6 , parallel to the axis Y17 and P120 plane and parallel to the straight portion of the section 140.
  • the mouths 130 are regularly distributed along the axis Y130. All the mouths 130 are disposed between the planes P9 and P10, more precisely between the plates 9 and 10 parallel to the direction Y.
  • each mouth 130 is therefore in charge of the lubrication of parts to be lubricated of the reading system 30 in connection with several levers 14 and drive devices 19, or in other words, distributed in several planes P32.
  • each central mouth being for example aligned in the same plane P32 or P14 as the part of the reading system 30 associated with the drive device concerned.
  • the number of central mouths may be less than or greater than eleven.
  • the parts to be lubricated of the reading system 30 comprise at least one side-lubricated part chosen from the following elements of the reading system 30: the pivot connection of the leveling arm 80 with the shaft 44, the pivot connection of the arm 90 with the shaft 44, the member 85 and its contact with the portion 82 of the arm 80, the member 95 and its contact with the portion 92 of the arm 90, the end 36 of the shaft 34, being understood that lubricant is preferably conducted along the shaft 34 from the end 36, to lubricate the pivot connections of the arms 32 with the shaft 34, the end 38, for the same reasons, the end 46 of the shaft 44, for the pivot connections of the arms 62, and the end 48, for the same reasons.
  • each lateral portion is located near one of the planes P9 or P10, that is to say preferably in one of these planes, in the immediate vicinity of one of these planes.
  • the mouths of the distributor 120 preferably comprise lateral mouths, arranged in the plane P9 and / or in the plane P10, or in the vicinity of these planes.
  • each lateral mouth is shifted in the Z direction relative to its side (s) side (s) to lubricate.
  • the lateral mouths are located in the same plane as the central mouths 130, this plane being parallel to the plane P120.
  • a lateral mouth 131 carried and fed by the section 141.
  • This mouth 131 is close to the inlet mouth 146.
  • This mouth 131 is located near one end of the leveler 50.
  • the mouth 131 is aligned with the portion 82 of the arm 80 in the direction Z.
  • the lubricant emitted by the mouth 131 flows along the portion 82 until reaching the pivot connection of the arm 80 with the shaft 44 to lubricate there .
  • the member 85 and its contact with the portion 82 of the arm 80 are also lubricated by the mouth 131.
  • a lateral mouth 132 carried and fed by the section 142, near the fluid connection with the sections 140 and 141.
  • This mouth 132 is close to the end of the leveler 50 concerned by the mouth 131.
  • the mouth 132 is advantageously shifted, in the direction Z, preferably in alignment with the direction Z, relative to the member 85 and its contact with the portion 82 of the arm 80, in order to lubricate these elements.
  • the lubricant poured by the mouth 132 trickles for example on a sloping upper edge of the leveling arm 80 until it reaches the member 85.
  • a side mouth 133 carried and fed by the section 142 at its free end.
  • This mouth 133 is shifted in the direction Z relative to the end 36 of the shaft 34, so as to deposit lubricant on the shaft 34.
  • the lubricant is advantageously poured through the opening 128 of the structure 35 , being guided by the tab 126 and / or the positioner 129 carried by the section 142.
  • the dispenser 120 advantageously comprises two fingers 129A.
  • Each finger 129A is in proximity to one of the positioners 129 being longer than the latter, the finger 129A passing through the opening 128, so as to guide the lubricant by runoff along the finger 129A to the side portion to lubricate.
  • a lateral mouth 134 carried and fed by the section 143.
  • This mouth 134 is symmetrical with the mouth 131 relative to the plane of symmetry P121.
  • the mouth 134 is close to the mouth 149.
  • This mouth 134 is close to the other end of the leveler 50.
  • the mouth 134 is aligned with the portion 92 of the arm 90 in the direction Z.
  • the lubricant emitted by the mouth 134 drops and flows along the portion 92 until reaching the pivot connection of the arm 90 with the shaft 44 to lubricate.
  • the member 95 and its contact with the portion 92 of the arm 90 are also lubricated by the mouth 134.
  • the mouth 135 is preferably symmetrical at the mouth 132 relative to the plane P121. This mouth 135 is close to the end of the leveler 50 concerned by the mouth 134.
  • the mouth 135 is advantageously in the Z direction, preferably in alignment, with respect to the member 95 and its contact with the mouth. screw 94 which fixes the shaft 50 to the arm 90, in order to lubricate these elements. For this, the lubricant discharged by the mouth 135 flows for example on a sloping upper edge of the leveling arm 90 to reach the body 95.
  • a lateral mouth 136 carried and fed by the section 144 at its free end.
  • This mouth 136 is advantageously symmetrical at the mouth 133 relative to the plane P121.
  • This mouth 136 is shifted in the direction Z relative to the end 38 of the shaft 34, so as to deposit lubricant on the shaft 34.
  • the lubricant is advantageously poured through the other opening 128 of the structure 35, being guided by the tab 126 and / or the positioner 129 carried by the section 144.
  • the lubricant is conducted in the section 141 from the mouth 146 in a direction L141 opposite the direction S120, which feeds the mouth 131.
  • Part of the lubricant of the section 141 engulfs in the section 140.
  • the lubricant circulates in a direction L140 illustrated on FIG. figure 6 , directed in parallel and in the same direction as the direction Y.
  • the mouths 130 are thus fed in series by the section 140, successively in the direction L140 and downstream of the mouth 131.
  • Another part of the lubricant engulfs in the section 142 in a direction L142, if the flow of lubricant supplied by the pump 110 is sufficient.
  • the mouths 132 and 133 are then fed successively, in series with each other, and in connection with the mouths 130.
  • the mouths 132 and 133 are fed downstream of the mouth 131.
  • the sections 142 and 144 are offset along the direction Z relative to the other sections, in particular with respect to the sections 141 and 143, so that, due to gravity, it is more difficult for the lubricant to reach them.
  • the distributor 120 advantageously comprises a partial partition 148, only partially obstructing the tubular passage section leading to the section 142 from the sections 141 and 140, at their fluidic connection node.
  • This partial obstruction 148 is advantageously formed projecting from the base 122 and extends vertically to form an obstacle of height greater than the level of lubricant contained in the section 141 at low speed.
  • the obstructor 148 advantageously has a curved shape in the extension of the curved portion of the central section 140. Thus, the obstructor 148 limits the circulation of lubricant to the section 142, giving priority to the circulation to the section 140, in order to ensure that even at low operation of the pump 110, at least the section 140 is supplied with lubricant, to the detriment of the section 142.
  • the section 142 allows overflow the evacuation of the overflow of lubricant section 140 out of the distributor 120, through the mouths 132 and possibly to the mouths 133. In case of high speed, the section 142 thus allows to divert a portion of the lubricant to limit the supply beyond the partial wall 150 at the section 140 and the lubricant emission at the central mouths 130.
  • an essential portion of the lubricant of the section 140 engulfs in the section 143 in the direction L143, directed as the direction S120.
  • the mouth 134 is thus fed to the section 143, downstream of the mouths 130.
  • the excess is discharged via the mouth 149, for example in the form of a peripheral net around the diabolo.
  • the mouthpiece 149 be positioned in alignment with the end 48 of the shaft 44 in the Z direction, so that the mouth 149 provides lubricant at that end 48.
  • the lubricant network formed by the distributor 120 therefore extends between the mouth 146 located vertically above the plate 9 in the plane P9, and the mouth 149, located at the base of the plate 10 in the plane P10.
  • the distributor 120 advantageously comprises a partial partition 150 serving as partial obstruction of the section 144, thus limiting the amount of lubricant supplying it.
  • another embodiment may be provided to form the obstructors, rather than partial partitions, as only part of the passage section of the section concerned is obstructed.
  • One of the two mouths can then be plugged in situ, the other left free, when we know the actual orientation of the dobby 1 around the Y direction.
  • the distributor 120 is advantageously entirely symmetrical with respect to the plane P121 so that it can be mounted inversely in another dobby having a symmetrical arrangement of its various elements, for example the dobby 201 illustrated in FIGS. Figures 10 to 14 .
  • another dispenser 320 has been mounted according to a second embodiment according to the invention, as explained below.
  • the distributor 120 is mounted in an inverted manner, the circulation is carried out along a path symmetrical, with respect to the plane P121, to that defined by the directions L140, L141, L142, L143 and L144, so that the members of the machine are advantageously fed the same way despite differences in flow rates of the lubrication system.
  • the dobby 201 is at all points symmetrical with respect to the dobby 1 around a plane parallel to the X and Z directions and symmetrically comprises the same characteristics, some of which are again referenced on the Figures 10 to 14 . Where these references are indicated on the Figures 10 to 14 , they bear the same number as those of the corresponding characteristics on the Figures 1 to 9 .
  • the description of the dobby 1 above therefore applies to the dobby 201, reversing the direction of the Y direction, except for the distributor 320, the differences with the distributor 120 are described below.
  • the directions X and Z remain the same as in the description which precedes.
  • the control shaft, the pump, the strainer, the filter and any other element mentioned above, are reversed with respect to the position of the loom and frames not shown because of the reversal of the Y direction.
  • the distributor 320 like the distributor 120, is advantageously entirely symmetrical with respect to a median plane of symmetry P321, parallel to the planes P9 and P10.
  • the distributor 320 preferably forms a rigid integral assembly with a base 322 and a cover 324 joined at a joint plane P320, orthogonal to the plane P321, similarly to the distributor 120.
  • the base 322 and the cover 324 comprise hooks 323 similar to the hooks 123, interacting with non-illustrated grooves, similar to the grooves 125, for the same function.
  • the distributor 320 is mounted on the part 39 of the structure 35 in the same way as the distributor 120, in the same orientation, using means similar to the means 126, 127 and 129. In the same way as the has defined the direction S120 in view of the plane P120, we define the direction S320 in view of the plane P320, as shown on the figure 13 .
  • the dispenser 320 includes lubricant circulation ducts therein such as the distributor 120, for distributing and driving lubricant supplied by the pump 110 and dispensing it.
  • these ducts comprise seven tubular sections, including a central section 340 and six other sections 341, 342, 343, 344, 341A and 343A.
  • each of the sections is substantially, or even totally, rectilinear, except the sections 342 and 344 which are partially curved.
  • the distributors 120 and 320 advantageously consist of sections for distributing the lubricant at a maximum of sensitive mechanical points of the reading system and the machine, without being bulky, nor covering the mechanical assembly, which is preferred to leave accessible to the maintenance.
  • Each section has a tubular cross section, preferably circular or ovoid, as shown for example on the figure 14 , to form one of the lubricant conduits of the distributor 320, except possibly the section 340, as defined below.
  • each section of the distributor 320 extends in the plane P320, like the sections of the distributor 120.
  • the central section 340 extends parallel to the direction Y17, being offset in the Z direction relative to the reading system 30.
  • the section 340 is in particular aligned in the Z direction with the members 33 that it feeds through its central mouths 330, as shown on the figure 12 .
  • the section 340 is set back from the edge 41.
  • the section 340 connects the plane P9 to the plane P10, or at least extends between the plates 9 and 10, in consideration of the direction Y.
  • the sections 341 and 343 are similar to the sections 141 and 143, respectively.
  • the sections 341 and 343 are lateral sections, extend parallel to the direction S320 respectively in the planes P10 and P9.
  • the sections 341 and 343 respectively carry a connecting mouth 346 and 349, with the same characteristics as the mouths 146 and 149. In the present example, it is the mouth 349 which is connected to the conduit 147, while the diabolo partially closes. the mouth 346.
  • the lubricant network formed by the distributor 320 therefore extends between the mouth 349, directly above the plate 9 in the plane P9, and the mouth 346, directly above the plate 10 in the plane P10.
  • the plane P10 of the plate 10 of the dobby 1 is opposed to the pump 110 and to the control shaft with respect to the plane P10 of the plate 10.
  • the sections 341 and 342 extend in the plane P10, while the sections 343 and 344 extend in the plane P9.
  • the sections 341 and 343 are fluidically connected to the section 340 respectively via the sections 341A and 343A, respectively at their opposite end of the mouths 346 and 349.
  • the sections 341A and 343A are connected to the section 340 to a distribution node 340A of the distributor 320, located at the height of the plane P321. More specifically, the section 341A is connected to the section 340 in the Y direction with respect to the P321 plane while the section 341A is connected to the section 340 on the other side of the P321 plane.
  • Each section 341A and 343A extends in an oblique direction of the plane P320 with respect to the axis Y, so that the sections 341A, 343A and 340 form a "K" -shaped grating.
  • the section 340 can therefore be separated into two derived sections 340B and 340C, on either side of the plane P321.
  • the section 342 is a lateral section comparable to the section 142, is fluidly connected to the section 340B and extends, from the section 340B, in the direction S320, so as to be, at its other end, coaxial with the section 341.
  • the tubular section of the sections 341 and 342 is continuous, but the sections 341 and 342 are fluidly separated, a complete partition 348 completely blocking the access to the section 342 directly from the section 341.
  • the section 344 is a lateral section comparable to the section 144, is fluidly connected to the section 340C and extends, from the section 340C, in the direction S320, so as to be, at its other end, coaxial with the section 343.
  • the tubular section of the sections 343 and 344 is continuous, but the sections 343 and 344 are fluidly separated, a complete partition 350 completely blocking access to the section 344 directly from the section 343.
  • the distributor 320 is fed via the mouth 349, so that the lubricant progresses in the section 343 in a direction L343 in the direction opposite to the direction S320.
  • the lubricant is then conducted in the section 343A by being directed towards the node 340A, that is to say towards the plane P321.
  • the distributor 320 comprises several emission mouths carried by the base 322, oriented towards the bottom 5 along an axis orthogonal to the plane P320.
  • the emission mouths include central mouths 330, carried and fed by the section 340, regularly distributed along an axis Y330 parallel to the direction Y. More precisely, as many mouthpieces 330 as levers 14 are provided. , the mouths 330 being respectively disposed in the respective planes P32 or P14 associated with these levers 14.
  • the section 340B carries and feeds a first portion of the mouths 330, namely eight, while the other section 340C carries and supplies the others.
  • the lubricant flows in an antagonistic manner along directions L340B and L340C, towards the planes P9 and P10, from the node 340A, which feeds these sections 340B and 340C.
  • the mouths 330 of the section 340B are thus supplied in series successively from the node 340A to the plane P10, while the mouths 330 of the section 340C are supplied in series successively from the node 340A to the plane P9.
  • the section 340 optionally has, as visible on the figures 13 and 14 , a cross-section in the form of a bridge, or in the shape of an inverted "U", the wall of the base 322 being deformed towards the inside of the tubular form, in the direction Z, so as to form a longitudinal dike 380, parallel to Y.
  • the dike 380 does not extend advantageously beyond the plane P320.
  • the dike 380 is extended by a partial partition 381, which extends over only a part, for example along only half of the dike 380.
  • the top of the partial partition 381 extends a short distance from the cover 324, beyond the plane P320, while nevertheless providing a lubricant passage gap from one side to the other of the partition 381 between the latter and the cover 324.
  • the partition 381 advantageously separates the section 340 into two lower and upper parallel gutters.
  • the mouths 330 are advantageously formed in the direction opposite to the direction S320 with respect to the partition 381.
  • the central mouths 330 are privileged extreme in their supply of lubricant, the existence of the partial partition 381. With this arrangement , the lubricant supplied by the node 340A is distributed more equitably between the mouths 330 by the overflow of the lower gutter, even for a low speed of the pump 110.
  • the mouths 330 may be fed in an order different from that mentioned here. -before.
  • This effect can be further accentuated by the presence of obstructors 351 and 352, formed here respectively by partial partitions, to partially seal the respective lateral ends of the central sections 340B and 340C, in order to limit the transmission of lubricant to the sections 342 and 342. 344, especially if the lubricant flow is low.
  • the obstructors 351 and 352 preferably protrude from the base 322.
  • the obstructors 351 and 352 extend vertically to form obstacles higher than the level of lubricant contained in the section 340 at low speed.
  • the "K" distributor construction thus has the advantage of distributing equitably the mouths of the derived segments. from the plane of symmetry P321 to the planes P9 and P10 symmetrically, unlike the distributor "H", where the central section leads the lubricant to the mouths in series between the plane P9 and the plane P10.
  • the distribution of the lubricant is guaranteed more equitably along the Y axis between the two halves of the reading system 30. The lubrication is improved.
  • the mouths 330 are advantageously aligned in the direction Z relative to the members 33 and the tabs 38 in order to lubricate them.
  • the emitted lubricant can also advantageously run off, in particular along the portion 39 of the structure 35 in order to also lubricate the tabs 43, or along the arms 32 to lubricate their pivot connection with the shaft 34.
  • the mouths of the dispenser 320 also include lateral mouths, disposed in the plane P9 and / or in the plane P10, or in the vicinity of these planes.
  • a lateral mouth 334 of the same function and the same position as the mouth 134 is carried and fed by the section 343.
  • a small portion of the lubricant of the section 340 is transmitted to the section 341A towards the plane P10, in a direction L341A.
  • the lubricant then flows in the section 341 in a direction L341 in the same direction as the direction S320.
  • a lateral mouth 331 can be provided, carried and fed by the section 341, for the same function and arrangement as the mouth 131.
  • Lubricant can also be emitted for example in the form of a peripheral net around the diabolo carried by the mouth 346.
  • each of the sections 342 and 344 carries a pair of lateral mouthpieces, 332 and 333, as visible in FIGS. figures 11 and 13 .
  • the mouths 333 and 332 are fed successively in series, the mouth 333 being upstream of the mouth 332.
  • the presence of the two mouths 332 and 333 makes it possible to distribute the supply of lubricant along the plates 9 and 10, so that all the parts to be lubricated laterally can be lubricated, even if the dobby 201 is inclined about its axis Y. Indeed, for each section 342 and 344, at least one of the two mouths 332 and 333 is vertically aligned respectively with the member 85 and the member 95.
  • the lubricant contained in the sections 342 and 344 is entirely discharged via the mouths 332 and 333, advantageously without entering the sections 341 and 343, because of the complete partitions 348 and 350.
  • the mouths 332 and 333 allow, symmetrically with respect to the plane P321, to evacuate the overflow of lubricant section 340 out of the distributor 320 in case of high flow.
  • the sections 342 and 344 thus allow, by overflow, to distribute the supply of lubricant beyond the partial walls 351 and 352 to limit the emission of lubricant at the central mouths 330.
  • the distributor 120 and the distributor 320 each constitute a distribution assembly which gathers the lubrication functions of all the parts of the reading system 30.
  • the distributors 120 and 320 advantageously take advantage of the volume of incoming lubricant available. from a single intake port of the lubrication circuit 111, to the mechanics to be lubricated. The lubricant can therefore be dispensed by one of the distributors 120 or 320, whatever the necessary configuration of the dobby, and the rate of speed maintained by the loom.
  • Each of the distributors 120 and 320 is an integrated assembly, quickly operational, requiring no accessory or additional tool, nor adjustment for its installation, maintenance or operation.
  • the distributor may comprise additional sections as described above, also provided with emission mouths, to supply lubricant to other parts of the dobby, which may belong to organs that are not the reading system 30.
  • connection mouths may have a shape different from those described above.
  • the connection mouths are bent, or incorporate means for quick connection, screw connection.
  • the dispenser can be connected to a channel formed directly in the frame and connected to the pump.
  • this channel may be partially formed in the frame between the connection mouth of the distributor and the pump, for example in the plane P9 through an upper edge of the plate 9.
  • connection mouths may be connected to the lubrication circuit to supply the dispenser via different lubricant supply sources.
  • a symmetrical distributor construction where the mouths are symmetrically distributed relative to the plane of symmetry P121 or P321.
  • the two connection mouths 146 and 149 may both be used at the same time to supply lubricant to the dispenser, and not selectively as illustrated.
  • the arrangement and shape of the emitting mouths may vary from the above examples.
  • the shape of the mouths may vary within the same section of the dispenser.
  • a mouth may be formed by a slot or a hole formed in the dispenser base to provide the lubricant dispensing function for the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
EP19169390.2A 2018-04-16 2019-04-16 Rotationsschaftmaschine und webrahmen Active EP3556920B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1853296A FR3080118B1 (fr) 2018-04-16 2018-04-16 Ratiere rotative et metier a tisser

Publications (2)

Publication Number Publication Date
EP3556920A1 true EP3556920A1 (de) 2019-10-23
EP3556920B1 EP3556920B1 (de) 2021-01-06

Family

ID=62684922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19169390.2A Active EP3556920B1 (de) 2018-04-16 2019-04-16 Rotationsschaftmaschine und webrahmen

Country Status (4)

Country Link
EP (1) EP3556920B1 (de)
KR (1) KR102618899B1 (de)
CN (1) CN110387624B (de)
FR (1) FR3080118B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114150414A (zh) * 2022-01-10 2022-03-08 江苏金龙科技股份有限公司 电子多臂机的运动部件的自润滑装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112095200B (zh) * 2020-09-22 2022-01-14 青海德瑞纺织品进出口有限公司 一种纺织用新型旋转式多臂机
FR3127957A1 (fr) 2021-10-07 2023-04-14 Youssef Bouy Ratiere textile electrique semi-rotative pour metiers a tisser et formation de la foule, et procede de montage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742298A1 (de) * 1995-05-12 1996-11-13 Stäubli Faverges Rotationsschaftmaschine zur Fachbildung in Webmaschinen
EP1845181A1 (de) * 2006-04-11 2007-10-17 STAUBLI Faverges Rotationsschaftmaschine, eine solche Schaftmaschine umfassende Webmaschine und Verfahren zur Steuerung einer solchen Schaftmaschine
EP3162935A1 (de) * 2015-10-29 2017-05-03 Staubli Faverges Fachbildungsmaschine und webrahmen, der eine solche fachbildungsmaschine umfasst

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662186B1 (fr) * 1990-05-18 1992-08-28 Staubli Sa Ets Procede pour le montage des elements d'actionnement des ratieres rotatives pour metiers a tisser, et ratieres obtenues.
CN1028178C (zh) * 1991-06-13 1995-04-12 广野精机有限公司 织带机传动轴轴承装置
IT1254219B (it) * 1992-02-25 1995-09-14 Eccentrico perfezionato per ratiera rotativa
FR2757882B1 (fr) * 1996-12-31 1999-02-19 Staubli Sa Ets Ratiere rotative et metier a tisser equipe d'une telle ratiere
KR200219887Y1 (ko) * 2000-09-22 2001-04-16 서부기계공업주식회사 직기용 도비기의 윤활유 급유장치
FR2842538B1 (fr) * 2002-07-16 2004-10-29 Staubli Sa Ets Ratiere rotative pour metier a tisser, et metier a tisser equipe d'une telle ratiere
FR2945825B1 (fr) * 2009-05-19 2011-06-24 Staubli Lyon Dispositif de formation de la foule et metier a tisser de type jacquard equipe d'un tel dispositif.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742298A1 (de) * 1995-05-12 1996-11-13 Stäubli Faverges Rotationsschaftmaschine zur Fachbildung in Webmaschinen
EP1845181A1 (de) * 2006-04-11 2007-10-17 STAUBLI Faverges Rotationsschaftmaschine, eine solche Schaftmaschine umfassende Webmaschine und Verfahren zur Steuerung einer solchen Schaftmaschine
EP3162935A1 (de) * 2015-10-29 2017-05-03 Staubli Faverges Fachbildungsmaschine und webrahmen, der eine solche fachbildungsmaschine umfasst

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114150414A (zh) * 2022-01-10 2022-03-08 江苏金龙科技股份有限公司 电子多臂机的运动部件的自润滑装置

Also Published As

Publication number Publication date
CN110387624B (zh) 2022-07-22
KR102618899B1 (ko) 2023-12-28
FR3080118B1 (fr) 2020-05-01
KR20190120721A (ko) 2019-10-24
EP3556920B1 (de) 2021-01-06
CN110387624A (zh) 2019-10-29
FR3080118A1 (fr) 2019-10-18

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