EP3162935B1 - Machine de formation de la foule et métier à tisser comprenant une telle machine de formation de la foule - Google Patents

Machine de formation de la foule et métier à tisser comprenant une telle machine de formation de la foule Download PDF

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Publication number
EP3162935B1
EP3162935B1 EP16196171.9A EP16196171A EP3162935B1 EP 3162935 B1 EP3162935 B1 EP 3162935B1 EP 16196171 A EP16196171 A EP 16196171A EP 3162935 B1 EP3162935 B1 EP 3162935B1
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EP
European Patent Office
Prior art keywords
lubricant
conduit
machine
pump
shaft
Prior art date
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Application number
EP16196171.9A
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German (de)
English (en)
French (fr)
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EP3162935A1 (fr
Inventor
Joseph CITTADINI
David Bonneau
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Staubli Faverges SCA
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Staubli Faverges SCA
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Publication of EP3162935A1 publication Critical patent/EP3162935A1/fr
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    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for

Definitions

  • the present invention relates to a shedding machine for a loom, for example of the mechanical type cam or rotary dobby, and a loom comprising such a machine for forming the crowd.
  • EP-A-0 140 800 use of needle bearings, between the output levers and the common shaft, as well as axial stops, between two adjacent levers.
  • the active lubrication of these mechanical elements as well as their cooling play a decisive role in maintaining the good functioning of the machine over time.
  • Lubrication reduces the friction of moving mechanical parts, removes heat created by friction and captures metal particles as well as any debris from the contact areas generated in the machine.
  • Lubrication also reduces operating noise and protects the parts against oxidation and corrosion.
  • the common shaft that supports the output levers is a critical area that must be particularly supplied with lubricant at startup and during operation of the machine.
  • Some known machines include lubrication systems that include hydraulic pumps and hoses to drive liquid lubricant to the shaft.
  • this solution has the disadvantage of using components reported on the frame of the machine, in particular pipes, whose positioning is not always guaranteed.
  • Hoses, which are flexible, are subject to leaks and mounting problems.
  • the assembly of the machine is also relatively complex because of the pipe connections to be made.
  • CN-Y-2,665,156 discloses a lubrication system for a shedding machine, including a piston pump.
  • the pump is connected with a distributor via an oil line.
  • the oil line can cause leaks and interfere with maintenance operations.
  • Some machines such as cam mechanisms are housed in a small space under the loom, which hinders maintenance operations, especially when the machine is abundantly provided with flexible hoses. Finally, the machine lacks adaptability when the machine must be configured for a given loom.
  • IT-B-1251843 discloses a rotating dobby which includes a pump for drawing lubricating oil contained at the bottom of a frame of the dobby.
  • the pump comprises a fixed curved guide with a plurality of oil capture chambers for supplying oil to a drive shaft of the machine via a through orifice of a first plate of the frame on which the element fixed is mounted.
  • the oil is brought and set in motion within the fixed guide by a smooth wheel that rotates nearby.
  • the circuit includes a filter line connected directly to a discharge port of the pump body, and a lubricant distribution conduit formed in a dobby shaft and directly connected to a suction port of the pump body.
  • the filter duct and the distribution duct are arranged between the first plate and a second plate of the frame of the machine.
  • This dobby has the disadvantage that the smooth wheel dipped in the oil from the bottom of the frame and thus occupies a large space.
  • the lever shaft is not lubricated.
  • the maintenance of the filter requires disassembly of the entire machine, insofar as it is mounted between two frames of the frame.
  • the invention aims to overcome the disadvantages of the prior art mentioned above, by proposing a new machine for forming the crowd particularly reliable, compact and easy to maintain.
  • the invention relates to a shedding machine for a loom, the shedding machine comprising oscillating output levers, which are rotatably mounted around a common shaft belonging to the machine. machine and which is mounted on a frame of the machine, the shedding machine comprising a lubrication system, which comprises a lubricant circuit, a delivery pump, lubricant circulation within the lubricant circuit, this pump comprising a pump body and at least one movable pumping member in the pump body, the pump body being provided with a lubricant suction channel, and a lubricant delivery channel, which is connected to a secondary conduit of the lubricant circuit, the secondary conduit being formed in the frame.
  • a lubrication system which comprises a lubricant circuit, a delivery pump, lubricant circulation within the lubricant circuit, this pump comprising a pump body and at least one movable pumping member in the pump body, the pump body being provided with a lubricant suction channel, and a
  • the lubrication system also comprises a lubricant dispensing member to at least one lubrication member of the machine, the dispensing member being connected to the secondary conduit of the lubricant circuit.
  • the lubricant suction channel is connected to a primary duct of the lubricant circuit, the primary duct being formed in the frame.
  • the suction channel is in facing relation and opens on the primary conduit and the discharge channel is in facing relation and opens on the secondary conduit.
  • the pump body is directly connected to the lubricant circuit via the frame, which avoids the implementation of flexible pipes, limits the risk of leakage, facilitates maintenance and manufacture of the machine.
  • the compactness of the machine is improved.
  • the invention also relates to a loom comprising a machine for forming the crowd as defined above, which forms a rotating dobby or a cam mechanism.
  • the machine 2 of training the crowd of figures 1 and 2 is intended to be integrated into a loom and is of the mechanical cam type.
  • the machine 2 comprises an input shaft 4 defining an axis X4, intended to be rotated about the axis X4 by drive means of a not shown loom.
  • the input shaft 4 is supported by a frame 6 of the machine 2.
  • the latter also comprises a drive shaft 8 which is visible only to the figure 3 .
  • the shaft 8 is also supported by the frame 6 and is rotated about its own axis X8 and with respect to the frame 6, by the input shaft 4.
  • the shafts 4 and 8 are perpendicular between them, the shaft 4 comprising a drive wheel 10, of the conical gear type, engraining a receiving wheel 11, of the conical gear type, of the shaft 8.
  • the machine 2 also comprises a shaft 12 whose own axis X12 is parallel to the axis X8.
  • the frame 6 forms a lower support in the form of a tank and in this case comprises a bottom 14 and a peripheral wall 56 projecting upwards from the contour of the bottom 14.
  • the machine 2 also comprises a hood, not shown, which is removably mounted on the peripheral wall 56 of the frame 6 so as to close the latter from above.
  • the shafts 4, 8 and 12 are included between the bottom 14 and the not shown hood, which define an internal volume of the machine 2.
  • Lubricant of the oil type, is set in motion within this interior volume by a lubrication system of the machine 2 described below.
  • the frame 6 thus receives a quantity of lubricant which fills at least a fraction of the internal volume of the machine 2.
  • the machine 2 also comprises oscillating levers 16, also called “output levers”, which are rotatably mounted on the shaft 12, independently of each other, about the axis X12.
  • the shaft 12 forms a support shaft of the levers 16, common to these levers 16.
  • a single lever 16 is shown, the others being omitted.
  • the machine 2 comprises for example eight levers 16 mounted on the shaft 12 and arranged next to each other along the latter. In practice, the number of levers 16 mounted on the shaft 12 can be adapted according to the type of loom to which the machine 2 is integrated and the pattern of the fabric to be woven on this loom.
  • the levers 16 each extend in a plane orthogonal to the axis X12 and are separated by axial stops 18 with rolling elements.
  • each of the stops 18 is interposed between two levers, except two of them which border the two lateral levers 16 of the group of levers 16. Moreover, each lever 16 comprises an extension 24 which passes through the not shown hood and extends to 2. The extensions 24 are connected to mechanical elements of the draw, not shown, to form the shed on the loom.
  • each lever 16 comprises two rollers 22 which are each rotatable about an axis X22 and compared to the lever 16 concerned.
  • the axes X22 are parallel to each other and parallel to the axis X12.
  • the rotating shaft 4 therefore drives the levers 16 in movement.
  • the frame 6 comprises a first plate 26 and a second plate 28 through which the common shaft 12 is supported on the frame 6.
  • the plates 26 and 28 project from the bottom 14 of the frame 6 and extend away from each other in respective planes P26 and P28 parallel to each other and perpendicular to the axis X12, as illustrated in FIG. figure 3 .
  • the plates 26 and 28 are mounted on the bottom 14 with screws.
  • a first portion 30 of the shaft 12 extends from the first plate 26 to the second plate 28 and a second portion 32 of the shaft 12 visible to the figure 3 extends from the second plate 28 in a direction opposite to the first plate 26.
  • a first end 34 of the shaft 12 is received in abutment against the plate 26, the first portion 30 of the shaft 12 starting from this first end 34.
  • the plate 26 comprises a recess 38 for receiving the shaft 12 visible at figures 4 , 6 and 7 in which the shaft 12 is supported by means of its first end 34.
  • the recess 38 has a U-shape, and comprises a bottom 40 and two parallel edges 42 which extend from the bottom 40 The edges 42 are disposed relative to each other at a distance which is greater than, and adjacent to, the diameter of the section of the shaft 12 defined at the end 34 of the latter.
  • the bottom 40 has a circular shape that extends the edges 42, to fit the periphery of the end 34.
  • the recess 38 extends in the plane P26 and defines a median axis X38 equidistant from the edges 42 and parallel to the latter, which is oriented obliquely with respect to a plane defined by the bottom 14.
  • the recess 38 is open in a direction parallel to the median axis X38, directed upwards and opposite the bottom 40.
  • the shaft 12 can slide in the recess 38 from a low position, called “weaving”, in which it bears against the bottom 40, to a high position, called “leveling” in which it is spaced from the bottom 40 and the shaft 8, and bears against one of the edges 42.
  • An intermediate section 36 of the shaft 12 bears on the plate 28.
  • This intermediate section 36 is located between the first part 30 and the second part 32.
  • the plate 28 comprises a recess 44 with a bottom 46 and parallel edges 48 which extend from the bottom 46, to receive the intermediate section 36 of the shaft 12 bearing against the plate 28, as visible at Figures 8 and 9 .
  • the recess 44 is also U-shaped.
  • the edges 48 are disposed relative to each other at a distance which is greater than, and adjacent to, the diameter of the section of the shaft 12 defined at the of the intermediate section 36 of the latter.
  • the bottom 44 has a circular shape that extends the edges 48, to fit the periphery of the intermediate section 36.
  • the recess 44 extends in the plane P28 and defines a median axis X44 equidistant from the edges 48, parallel to these and the X38 axis.
  • the recess 44 is open in a direction parallel to the median axis X44, directed upwards and opposite the bottom 46 and the shaft 8. In this way, the shaft 12 can slide in the recess 44 from the weaving position, in which it bears against the bottom 46, to the leveling position in which it is spaced from the bottom 46 and bears against one of the edges 48.
  • the common shaft 12 is mounted to move relative to the frame 6 between the weaving position and the leveling position, keeping its axis X12 parallel to the axis X8.
  • the orientation of the shaft 12 about its axis X12, relative to the frame 6 is also modified, as detailed in the following .
  • the machine 2 and thus designed to evolve between a weaving configuration represented in FIG. figure 8 , in which the shaft 12 is in the weaving position, and a leveling configuration, shown in FIG.
  • the plate 26 comprises a bearing 50 and the plate 28 a bearing 52 through which the shaft 8 is rotatably mounted about its axis X8 on the frame 6.
  • the toothed wheel 11 is mounted on one end 51 of the shaft 8, which extends after the bearing 50 opposite the bearing 52, in the direction of the axis X4.
  • the input shaft 4 is rotatably mounted about its axis X4 on the frame 6 via a third plate 54 and a side 60 of the peripheral wall 56.
  • the third plate 54 extends in a plane P54 which is perpendicular to planes P26 and P28.
  • the third plate 54 protrudes from the bottom 14 and is traversed by the shaft 4, the latter being mounted on the plate 54 by means of a bearing 58.
  • the plate 54 is mounted, for example, by screws on the bottom 14, or, alternatively, comes from material with the latter.
  • the side 60 of the peripheral wall 56 extends in a plane parallel to the plane P54 and located at a distance from the latter.
  • the plate 54 is disposed between the side 60 and a side 62 of the wall 56 which is opposite to the side 60 while being parallel to the latter.
  • the shaft 4 is rotatably mounted through the side 60 via a bearing 64 provided with sealing means to prevent leakage of lubricant from the internal volume of the machine 2.
  • the shaft 4 thus comprises a first part 66 which extends outside the machine 2 to the wall 60, a second part 68 which extends between the side 60 and the plate 54 and a third part 70 which is terminal and extends to from the plate 54 and on which the drive gear 10 is mounted integrally.
  • the lubrication system of the machine 2 comprises a pump 72, which circulates the lubricant in a lubricant circuit C2 of the machine 2 to a lubricant dispenser member to one or more lubrication members of the machine 2, for example the oscillating levers 16. The lubricant is then poured into the interior volume of the machine 2 to be pumped again by the pump 72.
  • the pump 72 which is shown alone at figure 10 , is a trochoid type hydraulic pump.
  • the pump 72 is driven by the input shaft 4 to put the lubricant in circulation in the circuit C2 and in the machine 2.
  • the pump 72 is traversed right through by the second portion 68 of the shaft 4 and is arranged between the plate 54 and the side 60 of the peripheral wall 56.
  • the pump 72 comprises in this case a pump body 74, visible in particular at the figure 10 which is secured to the bottom 14 of the frame 6, for example by being fixed by screws to the latter.
  • the pump body 74 projects from the bottom 14 and is generally planar in shape so as to define a plane P74 parallel to the plane P54 and orthogonal to the axis X4.
  • the shaft 4 passes through the body 74 via a circular orifice 76 of the latter, the circular orifice being centered on an axis orthogonal to the plane P74.
  • the pump body 74 is further provided with a suction channel 78 of the lubricant and a delivery channel 80 of the lubricant.
  • the channels 78 and 80 open respectively by a suction inlet 84 and a discharge port 86 at an inner face 82 of the pump body 74.
  • the inner face 82 itself extends in a plane parallel to the plane P74, the orifice 76 opening at the center of the inner face 82.
  • the gills 84 and 86 each have a circular arc shape centered on the axis X4 and are arranged opposite to each other, on either side of the orifice 76.
  • the discharge channel 80 is thus disposed on the side of the plates 26 and 28, while the suction channel 78 is disposed opposite.
  • the suction channel 78 and the discharge channel 80 also comprise, respectively, a suction duct 88 and a discharge duct 90.
  • the ducts 88 and 90 extend parallel to one another. other and in a plane that is parallel to plane P74.
  • the duct 88 connects the duct 84 to a lower suction opening 92 of the pump casing 74.
  • the discharge duct 90 connects the duct 86 to a lower discharge opening 94 of the pump casing 74.
  • the channel 78 is formed of the portions 84, 88 and 92
  • the channel 80 is formed of the portions 86, 90 and 94.
  • the openings 92 and 94 open on a lower face 96 of the pump body 74, which is in contact with the bottom 14 of the frame 6 when the pump body 74 is fixed by screw on the bottom 14.
  • an intermediate piece of the spacer type, is interposed between the pump 74 and the bottom 14, this intermediate piece being traversed by two ducts extending the openings 92 and 94 towards the bottom 14.
  • the pump 72 also comprises an inner rotor 98 and an outer rotor 100 which form movable pumping members in the pump body 74.
  • the inner rotor 98 is fixed on the shaft 4 and traversed by the latter via a central orifice 102 of the inner rotor 98.
  • the central orifice 102 comprises a flat portion 104 which cooperates with a flat portion 106 of the shaft 4 so as to fix in rotation the inner rotor 98 with respect to the shaft 4, around the X4 axis.
  • the rotor 98 is mounted against the inner face 82 of the pump body 74.
  • the inner rotor 98 is provided with a plurality of external teeth 108, in this example ten teeth 108, which are distributed over the outer circumference of the inner rotor 98, around the X4 axis.
  • the outer teeth 108 have a rounded profile.
  • the outer rotor 100 forms a ring which is mounted against the inner face 82 around the inner rotor 98.
  • the outer rotor 100 comprises a central orifice 112 towards the center of which the internal teeth 110 of the rotor 100 project, the inner teeth 110 being distributed. around an axis X100 of rotation of the rotor 100.
  • the rotor 100 comprises eleven teeth 110 which have a rounded profile approximately complementary to that of the external teeth 108.
  • the outer rotor 100 comprises at least one tooth of more than the inner rotor 98, so that the outer teeth 108 mesh with the internal teeth 110.
  • the shaft 4 thus rotates about the axis X100, the outer rotor 100, through the internal rotor 98
  • the outer rotor 100 comprises a circular peripheral surface 114 centered on its axis X100 through which it is rotatably mounted about this axis X100, on a cover 116 of the pump 72.
  • uvercle 116 is itself secured to the pump body 74, preferably being fixed by screws against the inner face 82 of the pump body 74.
  • the cover 116 comprises a internal chamber 117, puck-shaped circular section, centered on a parallel axis X117 and offset upwardly with respect to the axis X4.
  • the inner chamber 117 illustrated on the figure 10 , comprises a peripheral wall 119 for guiding the outer rotor 100 about the axis X117, so that the X100 and X117 axes are coaxial and off-axis with respect to an axis X76 defined by the orifice 76.
  • the X76 axes, X100 and X117 are included in the same plane, which is orthogonal to the plane of the bottom 14, orthogonal to the plane P74 and parallel to the planes P26 and P28 when the pump 72 is mounted in the machine 2.
  • the axis X4 is then interposed, in height, between the axis X117 and the lower face 96.
  • the inner chamber 117 is closed by the face 82 when the cover 116 is mounted on the pump body 74, so that the rotors 98 and 100 are housed between the face 82 and the cover 116, in the internal chamber 117.
  • the cover 116 further comprises a circular orifice 118 which is coaxial with the orifice 76 of the pump body 74, when the cover 116 is mounted on the latter, and through which the cover 116 is traversed by the shaft 4
  • a seal 120 is provided between the orifice 118 and the shaft 4 to substantially seal the internal chamber 117 of the pump 72.
  • a seal of the same kind is optionally provided within the orifice 76.
  • the inner rotor 98 and the outer rotor 100 constitute pumping members of the pump 72.
  • the teeth 108 and 110 together form an annular gap which defines suction-discharge chambers of the lubricant, whose volume varies by rotation of the rotors 98. and 100 controlled by the shaft 4, these volume variations generating a suction at the suction inlet 84, which opens into some of these chambers, whose volume increases with the rotation of the shaft 4, and a discharge at the level of the discharge port 86, which opens into some of these chambers, the volume of which decreases with the rotation of the shaft 4.
  • the suction-discharge chambers are arranged on the X4 axis side opposite the bottom 14 and connect the hearing 84 to the hearing 86.
  • the rotation of the shaft 4 in a first direction of rotation called "direct" about its axis X4 causes a pumping of the lubricant from the channel suction 78 to the channel of repression 80.
  • the rotating teeth 108 and 110 participate in the lubricant entrainment between the suction channel 78 and the discharge channel 80.
  • the cover 116 is adapted to be mounted on the pump body 74 in at least a second orientation about the inner rotor, not shown, which is distinct from that described above.
  • the cover 116 is preferably turned at 180 ° (degrees) about the axis X4 relative to the first orientation illustrated in the figures, so that the axis X117 is interposed, in height, between X4 and the bottom 14.
  • the suction-discharge chambers are in this case arranged between the axis X4 and the bottom 14, while connecting the hearing 84 to the hearing 86.
  • the pump 72 can thus be easily adapted to the direction of rotation of the shaft 4 as a function of the orientation of the cover 116 on the body 74.
  • the two orientations of the cover 116 thus define two distinct positions of the outer rotor 100 relative to the inner rotor 98.
  • the cover 116 and its chamber 117 constitute inversion means that can be easily configured to adapt the pump 72 to the circuit C2 between the channels 78 and 80 of the pump 72 allow to adjust the pump 7 2 so that it imposes a direction of flow of the correct lubricant, that is to say in the direction of the bodies to be lubricated, regardless of the direction of rotation of the shaft 4 which drives the pump 72.
  • pump reversal means can be adapted to allow a choice of lubricant flow direction within the circuit C2, such as spacers interposed between the pump 74 and the bottom 14 which can reverse the connection of the suction channels 78 and discharge 80 with the circuit C2.
  • the machine 2 can be equipped with any pump which can be traversed by the input shaft 4 and which generates a suction-discharge in an annular chamber around the shaft 4.
  • any pump which can be traversed by the input shaft 4 and which generates a suction-discharge in an annular chamber around the shaft 4.
  • a single-vane eccentric pump or a gear pump can be implemented to replace the trochoid pump mentioned above.
  • the pump 72 can be traversed and driven by the shaft 8 alternately to the shaft 4, or any other shaft belonging to the drive means of the levers 16 in oscillation.
  • the pump 72 is designed to circulate the lubricant in the circuit C2 of the machine 2 with a flow rate of 6 l / m (liters per minute), in the case where the rotation speed of the shaft 4 is 900 rpm (revolutions per minute).
  • a lubricant distribution duct 122 is formed inside the common shaft 12, and extends coaxially with the axis X12, as can be seen in particular in FIGS. figures 1 and 2 .
  • a tubular wall 124 the section of which is in the form of a circular ring, belonging to the common shaft 12, delimits peripherally the distribution duct 122 and is coaxial with the axis X12.
  • the tubular wall 124 thus advantageously forms the wall of the duct 122, and delimits an interior space wherein the lubricant is for circulation.
  • the shaft 12 is thus a hollow tubular shaft within which the lubricant circulates.
  • the oscillating levers 16 are in practice mounted on the tubular wall 124 around the latter, for example by means of roller bearings (not shown).
  • Lubricant dispensing orifices 126 are formed through the tubular wall 124 along the first portion 30 of the shaft 12 on which the levers 16 are mounted.
  • the distribution duct 122 is thus placed in communication with the outside. of the common shaft 12, so that the levers 16 being oscillated are lubricated by lubricant which escapes from the distribution duct 122 through the dispensing orifices 126.
  • the orifices 126 distribute the lubricant to the friction parts outside the common shaft, the axial stops 18 and the bearings, not shown, by means of which the levers 16 are mounted on the shaft 12.
  • the latter accumulates the functions of the common support shaft of the levers 16 and the distribution member of the lubrication system.
  • the distribution duct 122 extends between an upstream first end 128 which is situated in the vicinity of the plane P26 of the first plate 26 and a second downstream end 132 which is situated in the vicinity of the plane P28 of the second plate 28. From the first end 128, the shaft 12 comprises a supply duct 130 which extends radially with respect to the axis X12 by extending the duct 122, the duct 130 opening out that the radial outer surface of the first end 34 of the 'tree 12 as visible to figures 1 and 6 . The lubricant supply of the distribution duct 122 is thus carried out radially with respect to the axis X12, through the duct 130.
  • An outlet duct 134 radially extends the duct 122, with respect to the axis X12, to the the second end 132.
  • the outlet duct 134 extends in a direction parallel to that of the supply duct 130 and opens on the outer radial surface of the intermediate section 36 of the shaft 12, as visible at Figures 8 and 9 .
  • the lubricant is thus intended to circulate in the distribution duct 122 from the supply duct 130 to the dispensing orifices 126 and to the outlet duct 134.
  • the supply duct 130 When the shaft 12 is in the weaving position, the supply duct 130 is placed facing and in contact, preferably sealed, with a transfer duct 136 formed in the first plate 26.
  • the conduit 136 opens on the surface of the bottom 40 of the recess 38 and is coaxial with the axis X38.
  • An orifice 136A forming the outlet of the conduit 136 is visible at the figure 7 , on the bottom 40.
  • the transfer duct 136 which belongs to the lubricant circuit C2, lubricates the supply duct 122, through the duct 130.
  • the contact between the transfer duct 136 and the supply duct 130 In the leveling position, the contact between the transfer duct 136 and the supply duct 130 is interrupted to the extent that the shaft 12 is spaced from the bottom 40.
  • the rotation of the shafts 4 and 8 is interrupted, so that the pump 72 is stopped.
  • the pump 72 and in particular the discharge duct 90 of the discharge channel 80 is connected to a secondary duct 138 of the lubricant circuit C2.
  • This secondary duct 138 is formed in the bottom 14 of the frame 6 and connects a first portion 142 of the duct 138 to a delivery duct 140 formed in the first plate 26, the supply duct 140 being itself connected to the duct. supply 130 of the shaft 12 through the transfer conduit 136 of the first plate.
  • the secondary duct 138, the supply duct 140 and the transfer duct 136 thus constitute a first continuous set of ducts which are formed in the frame 6 to drive the lubricant from the discharge duct 80 of the pump 72 to the duct supply 130 of the dispenser member.
  • the duct 138 comprises the first portion 142 which opens on the surface of the bottom 14 so as to be in facing relation and in contact, preferably sealed, with the lower discharge opening 94 of the discharge pipe 90 , when the pump 72 is mounted on the frame 6. It is understood that the opening 94 opens directly into the first portion 142 of the conduit 138, without intermediate connection means.
  • This first portion 142 is coaxial with the conduit 90 so that the lubricant flows from the conduit 90 to the first portion 142 of the conduit 138.
  • the secondary conduit 138 comprises a second portion 144, which is intermediate and which extends the first part 142 in the plane of the bottom 14, perpendicularly to the first portion 142. The second portion 144 extends from the bottom of the pump 72 to below the first plate 26.
  • the secondary conduit 138 finally comprises a third portion 146 which extends the second portion 144, perpendicular to the latter and parallel to the first portion 142, towards the hood of the machine 2.
  • the third portion 146 extends within the bottom 14 so that when the plate 26 is assembled on the bottom 14, the third portion 146 opens on the surface of the bottom 14 vis-à-vis and in contact, preferably sealed, with the inlet port of the supply duct 140 of the
  • the secondary conduit 138 thus forms a U, as can be seen in FIGS. figures 1 and 2 .
  • the supply duct 140 is substantially rectilinear and extends in the plane P26 perpendicular to the transfer duct 136. At the figure 2 given the angle of perspective, the cut portion of the plate 26 where are located the conduits 136 and 140 is not visible.
  • the mounting of the pump 72 on the frame 6 and the plate 26 on the bottom 14 communicates the discharge channel 80 of the pump 72 with the supply conduit 140.
  • the pump 72 thus delivers lubricant up to to the conduits 130 and 122 and thence to the dispensing orifices 126 to the oscillating levers 16.
  • a detection probe 148 is provided to detect the presence of lubricant in the circuit C2.
  • the probe 148 is mounted on the second plate 28, at the top of the latter, so as to be placed in the circuit C2 downstream of the dispensing orifices 126 of the dispenser member.
  • the lubricant circuit C2 comprises a probe duct 150 which is formed within the second plate 28 in the plane P28 and which is connected to the probe 148.
  • the probe duct 150 forms a set of ducts, for example rectilinear or curved ducts. , fluidly connected to the circuit C2.
  • the probe duct 150 forms a succession of rectilinear ducts, among which an annex duct 152 of the circuit C2, the annex duct 152 being placed facing each other and in contact with the outlet duct 134 when the shaft 12 is in the weaving position.
  • the outlet duct 134 of the shaft 12 is connected to the probe duct 150 via the annex duct 152.
  • the outlet duct 134 is preferably coaxial with the axis X44 when the shaft 12 is in the weaving position and opens into bottom surface 46 of the recess 44.
  • An orifice 152A forms the outlet of the probe duct 150, at the level of the annex duct 152.
  • the outlet duct 134 which belongs to the circuit C2 of lubricant and supplied by the distribution duct 122 of the common shaft 12, lubricating the probe duct 150 through the duct annex 152.
  • the outlet duct 134, and therefore the supply duct 130 are oriented obliquely upwards.
  • the shaft 12 is not only moved along the X38 and X44 axes, but also rotated by an angle between 0 and 90 ° around its axis X12 , relative to the frame 6.
  • the pump 72 is stopped.
  • the detection probe 148 comprises a float 154 which is immersed in a reservoir 156 of lubricant formed in the plate 28.
  • the float 154 is mounted to move in vertical translation on a sensor 158, which is in the form of a rod, of the probe 148.
  • This sensor 158 is able to send an alert signal to a control unit of the machine 2 in the case where the oil level in the tank is below a predetermined threshold, situation in which the float 154 is in a predetermined position located towards the The bottom of the reservoir 156.
  • the probe conduit 150 connects the reservoir 156 of the probe 148 to the annex conduit 152.
  • the lubrication system also includes a lubricant collection bag 160 located in the housing 6.
  • the lubricant intake into the collection bag 160 is effected under the suction action of the pump 72, so that the lubricant is The latter is drawn into the bottom 14, preferably at the lowest point of the machine 2, so that all the lubricant contained in the frame 6 can be collected.
  • the machine 2 comprises a lubricant filtering system of the circuit which includes at least one upstream filtering member 162, which is attached to the frame 6 so that it can be serviced or replaced easily.
  • the upstream filtering member 162 is generally elongate along an axis X162 and is housed in a sleeve 164 of the frame 6, which rises from the bottom 14 along an oblique axis coaxial with the X162 axis.
  • the filter member 162 is screwed into its sleeve 164 by its lower end 171, so that an upper end 170 of the member 162 is accessible from outside the frame 6, passing through the side 62 of the peripheral wall 56 of the frame 6.
  • the lower end 171 is oriented towards the bottom 14 and the upper end 170 in an opposite direction along the axis X162.
  • a plug 172 for protecting the filter member 162 is screwed onto the sleeve 164 at the upper end 170 coaxially with the axis X162.
  • the filtering member 162 defines a duct 166, coaxial with the axis X162, which extends from the collection bag 160 to a neighboring upper end of a permanent magnet 168 of the filtering member 162. - Even located at the upper end 170, under the cap 172.
  • the magnet 168 collects any metal debris and the filings contained in the lubricant.
  • the filter member 162 further comprises a tubular filter 174, or strainer, which is disposed around the conduit 166 and through which the lubricant is intended to be filtered while circulating in a downward axial direction, relative to the X162 axis, up to an internal compartment 176 of the circuit disposed above the collection bag 160.
  • the inner compartment 176 extends over a portion of the circumference and the height of the tubular filter 174, so that the lubricant is extracted radially from this tubular filter 174 to be poured into the internal compartment 176.
  • the collection bag 160 and the inner compartment 176 are made of material with the bottom 14. Alternatively, they may constitute elements on the 14.
  • the compartment 176 thus receives the lubricant after its filtering in the body of filtering 162, under the action of the suction of the pump 72.
  • the filtering member 162 filters the lubricant of the circuit C2 before it passes through the suction channel 78 of the pump.
  • the machine 2 comprises a downstream filtering member which filters the lubricant of the circuit after it has passed through the discharge channel 80.
  • a downstream filtering member is then connected to the circuit C2 between the pump 72 and the distribution duct 122 , ie for example in series on the secondary conduit 138.
  • the upstream filtering member 162 is optional.
  • the circuit C2 finally comprises a primary conduit 178 which connects the compartment 176 to the suction channel 78 of the pump 72.
  • the primary conduit 178 is formed in the bottom 14 of the frame 6 and comprises a substantially horizontal first portion 180, which is extends from the compartment 176 along an axis parallel to the axis X4.
  • the primary duct 178 comprises a second portion 182 which opens at the surface of the bottom 14 so as to face and contact, preferably sealed, with the lower suction opening 92 of the suction duct 88 of the pump 72 when the pump is mounted on the bottom 14. It is understood that the opening 92 opens directly into the second portion 182 of the conduit 178, without intermediate connection means. In this case, the second portion 182 is then coaxial with the suction duct 88 so that the lubricant flows from the second portion 182 to the duct 88.
  • the parts 180 and 182 of the primary duct 178 are perpendicular.
  • the lubricant circuit C2 thus comprises a second continuous set of ducts which are formed in the frame 6 to drive the lubricant from a lubricant filtering system to the suction channel 78 of the pump 72. particularly the inner compartment 176 and the primary conduit 178.
  • the various aforementioned conduits of the circuit C2 of the machine 2 have for example a diameter of about 6 mm (millimeters).
  • the lubricant circuit C2 comprises in the flow order of the lubricant: the collection bag 160, the sleeve 164, the internal compartment 176, the primary duct 178, the suction channel 78, the chambers of the lubricant. suction-discharge of the lubricant of the pump 72, the delivery channel 80, the secondary duct 138, the supply duct 140, the transfer duct 136, the supply duct 130, the distribution duct 122, the duct outlet 134, the annex duct 152, the probe duct 150 and the reservoir 156.
  • the circuit C2 is thus formed in the frame 6, the common shaft 12 and the pump 72, so that the various elements of the frame 6 such as the bottom 14 and the plates 26 and 28, the filter member 162, the pump 72 and the shaft 12 connect together all the parts of the circuit C2.
  • the manufacturing method of the machine 2 comprises steps of fixing the pump body 74 and the plates 26 and 28 on the bottom 14, for example by screws, which forms the circuit C2.
  • connection or “fluidic connection” or “fluidic connection” it is meant that there exists in a connected circuit configuration, a passage, channel or conduit arranged in one or more parts of the machine allowing the circulation of fluid between two organs or two spaces of this machine.
  • Some ducts of the frame 6 and of the pump 72 are, for example, made by machining, in particular by drilling, in particular for the ducts formed of rectilinear parts, such as the primary duct 178, the supply duct 140, the duct transfer 136, the annex duct 152, the probe duct 150, the suction duct 88, or the discharge duct 90.
  • the suction duct 84 and the discharge duct 90 are, for example, made by milling pump body 74, the blank of which is previously produced by molding.
  • the other ducts, such as the secondary duct 138 can be made during a molding step of the part of the frame 6 concerned, using cores or hollow metal inserts introduced into the mold of the part concerned. , in particular the bottom forming mold 14.
  • the circuit C2 comprises lubricant conduits, not shown, for lubricating the engagement of the drive wheel 10 with the receiving wheel 11.
  • seals are provided to seal the contact connection between two elements of the circuit C2 of the machine 2.
  • each of the openings 90 and 92 is provided with a reception counterbore, made of surface of the lower face 96, for a gasket, of the O-ring type or a flat gasket, not shown.
  • the machine 2 described above is of the mechanical cam type.
  • the lubrication system may be integrated on a rotating dobby-type mowing machine, in which, in essence, the camshaft 20 is replaced by a main shaft provided with rotating elements.
  • eccentric actuations belonging to drive units for driving oscillating levers 16 mounted on a shaft common parallel to the main shaft, the actuating elements being connected to the levers 16 by connecting rods.
  • the lubricant dispenser member is integral with, or is attached to, the frame.
  • the dispensing member is fluidly connected to the delivery channel of the pump, and is adapted to feed at least one lubricant duct arranged in the frame and plates reported, and opening on the machine's lubrication members, which are designed to be in motion.
  • These elements to be lubricated are, for example, conical drive meshing members, a modulator of the main shaft, the common shaft on which the output levers are mounted, zones of friction of the output levers, or any other mechanical connection requiring a supply of lubricant.
  • the lubrication system can be integrated in a crowd-forming machine, of the mechanical cam type, whose common shaft is leveled by eccentric elements, as in the example described in FIG. FR-A-2,868,090 .
  • the first plate 26 is fluidly connected to the distribution pipe 122 of the common shaft 12 at the end of the shaft and axially with respect to the axis X12, so that in the position of weaving the machine, the transfer duct 136 feeds the distribution duct 122 of the common shaft 12 coaxially through an orifice placed opposite the distribution duct 122.
  • the second plate 28 is fluidly connected to the distribution duct 122 of the common shaft 12 at the end of the shaft and axially with respect to the axis X12, so that in the weaving position of the machine, the distribution duct 122 supplies the duct 152 annexed coaxially through an orifice in the axis of the distribution duct.
  • intermediate parts attached to the first 26 and second 28 platens can respectively fluidly connect the transfer duct 136 and the annex duct 152 respectively to the distribution duct 122 of the shaft 12.
  • the pump body 74 is made of material with the bottom 14 so that the pump body 74 is integrated with the frame 6.
  • the suction channel 78 of the pump body is merged with the second part. 182 of the primary duct 178.
  • the discharge duct 80 coincides with the first portion 142 of the secondary duct 138.
  • suction and discharge lines not illustrated are advantageously arranged in the frame 6, to connect the lubricant circuit C2 to a lubricant cooling system attached to the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • General Details Of Gearings (AREA)
EP16196171.9A 2015-10-29 2016-10-28 Machine de formation de la foule et métier à tisser comprenant une telle machine de formation de la foule Active EP3162935B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1560366A FR3043098B1 (fr) 2015-10-29 2015-10-29 Machine de formation de la foule et metier a tisser comprenant une telle machine de formation de la foule

Publications (2)

Publication Number Publication Date
EP3162935A1 EP3162935A1 (fr) 2017-05-03
EP3162935B1 true EP3162935B1 (fr) 2018-07-25

Family

ID=55025215

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Application Number Title Priority Date Filing Date
EP16196171.9A Active EP3162935B1 (fr) 2015-10-29 2016-10-28 Machine de formation de la foule et métier à tisser comprenant une telle machine de formation de la foule

Country Status (6)

Country Link
EP (1) EP3162935B1 (zh)
CN (1) CN106894150B (zh)
BR (1) BR102016025227B1 (zh)
FR (1) FR3043098B1 (zh)
PT (1) PT3162935T (zh)
TW (1) TWI712711B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3080118B1 (fr) * 2018-04-16 2020-05-01 Staubli Faverges Ratiere rotative et metier a tisser
FR3088653B1 (fr) 2018-11-21 2020-12-11 Staubli Sa Ets Dispositif de refroidissement d’une machine de formation de la foule d’un métier à tisser
CN109554812B (zh) * 2018-12-28 2024-04-09 约科布·缪勒机械制造(中国)有限公司 一种用于无梭窄幅织机上的蠕动泵供油系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552118B1 (fr) 1983-09-21 1985-11-22 Staubli Sa Ets Perfectionnements aux ensembles de leviers de tirage montes sur les ratieres et autres mecaniques pour la formation de la foule sur les machines a tisser
IT1251843B (it) * 1991-09-20 1995-05-26 Nuovopignone Ind Meccaniche Ef Pompa a trascinamento per fluidi viscosi, particolarmente adatta per la lubrificazione di ratiere e telai tessili
JPH0949147A (ja) * 1995-08-08 1997-02-18 Tsudakoma Corp レピアバンドへの潤滑剤供給装置
DE10312118A1 (de) * 2003-03-17 2004-09-30 Picanol N.V. Schaftantrieb für eine Webmaschine
CN2665156Y (zh) * 2003-12-02 2004-12-22 新昌鹤群机械有限责任公司 多臂机的润滑装置
FR2868090B1 (fr) 2004-03-29 2006-05-26 Staubli Faverges Sca Dispositif de nivelage, mecanique d'armure a came incorporant un tel dispositif et metier a tisser d'une telle mecanique
DE602005010565D1 (de) * 2005-05-31 2008-12-04 First Spa Verbesserte Schmiervorrichtung für Lager der Hebel zur Betätigung der Schäfte einer Webmaschine
JP5423781B2 (ja) * 2011-12-21 2014-02-19 株式会社豊田自動織機 織機の電子開口装置における自動給油装置
JP5812063B2 (ja) * 2013-08-28 2015-11-11 株式会社豊田自動織機 織機の開口装置における給油装置
CN204251828U (zh) * 2014-11-11 2015-04-08 浙江玛雅布业有限公司 一种改良结构的提花机的润滑装置

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
EP3162935A1 (fr) 2017-05-03
PT3162935T (pt) 2018-11-12
CN106894150A (zh) 2017-06-27
BR102016025227A2 (pt) 2017-05-02
BR102016025227B1 (pt) 2022-06-07
TWI712711B (zh) 2020-12-11
TW201723252A (zh) 2017-07-01
FR3043098B1 (fr) 2017-12-22
FR3043098A1 (fr) 2017-05-05
CN106894150B (zh) 2020-03-06

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