• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A compacting device of a fiber wick (W1) comprises a first pair of drawing cylinders (4a, 4b) and an auxiliary pair of cylinders comprising an auxiliary cylinder (14a) and a pressure cylinder (14b) in contact with pressure with this, downstream of the first pair of drafting cylinders. A suction table (22) is arranged between the first pair of drafting cylinders and the auxiliary pair of cylinders and is provided with a suction opening (34); on the suction table (22) an auxiliary belt (24) is sliding, permeable to air and passing over the suction opening (34). The auxiliary cylinder (14a) is moved by the first drawing cylinder (4a).
    公开号:CH710147B1
    申请号:CH00159/16
    申请日:2014-07-30
    公开日:2018-11-15
    发明作者:Assenza C/O Marzoli Machines Textile S R L Rosario；Galli C/O Marzoli Machines Textile S R L Massimo
    申请人:Marzoli Machines Textile Srl；
    IPC主号:
    专利说明:

    Description [0001] The object of the present invention is a compacting device of a wick in a spinning machine, a compacting assembly and a spinning machine comprising the compacting device.
    [0002] There are numerous embodiments of compaction devices for spinning machines.
    [0003] Some solutions perform a mechanical compaction, that is to say they substantially channel the fiber wick into a funnel duct, so as to bring the fibers closer together, thus compacting the wick. However, these solutions do not allow the wick to be dusted.
    [0004] On the other hand, the realizations which exploit a current of sucked air which acts on the fibers bringing them closer, thus compacting the wick, are particularly widespread.
    [0005] These solutions are particularly appreciated, since they allow at the same time to compact the wick and to dedust it, with a notable improvement in the quality of the yarn obtainable in the spinning machine. An example of embodiment is illustrated in the International Application WO 2012/063 150 in the name of the Applicant.
    [0006] The object of the present invention is to provide an improved compaction device with respect to the solutions of the prior art.
    [0007] This object is achieved by a compaction device made in accordance with claim 1 below. The dependent claims describe embodiment variants.
    [0008] The characteristics and advantages of the compaction device according to the present invention will be evident from the following description, given as a non-limiting example, in accordance with the attached figures, in which: fig. 1 shows a section view, according to a plane containing the direction of advancement of a fiber wick, of a stretching device of a spinning machine comprising a compaction device according to the present invention; fig. 2 represents a modular compaction unit according to the present invention, according to an observation point on the input side; fig. 3 shows the modular assembly of fig. 2, according to an exit side point of view; fig. 4 shows the modular assembly of fig. 2 engaged with conveying means; fig. 5 shows a section view, according to a plane perpendicular to the direction of advancement of the wick, of the modular group of fig. 4; fig. 6 represents movement means of an auxiliary cylinder of the compaction device according to the present invention; fig. 7 represents a section view of the drawing device and means for moving the auxiliary cylinder of the compacting device; fig. 8 shows a handling assembly with means for moving the auxiliary cylinder and a trolley for supporting the pressure cylinders; fig. 9 shows a transmission unit for the moving means of fig. 6, 7 and 8; fig. 10 illustrates a diagram of an aspiration apparatus for the compaction devices according to the present invention; fig. 11 represents a modular compaction unit according to a further embodiment of the present invention; fig. 12 illustrates the modular assembly of fig. 11 according to a view from above; fig. 13 shows a section view, according to a plane perpendicular to the direction of feed of the stubble, of the modular assembly of fig. 11; fig. 14 shows a section view, according to a plane parallel to the direction of advancement of the wick, of the modular group of fig. 11; fig. 15 shows a transmission unit for the moving means, according to a further embodiment; fig. 16 represents means for moving the auxiliary cylinder of the compacting device according to a further embodiment of the present invention; fig. 17 shows the movement assembly with means for moving the auxiliary cylinder and a trolley for supporting the pressure cylinders, according to a further embodiment of the present invention; and fig. 18 illustrates a group for transmitting the moving means, according to a further embodiment of the present invention.
    [0009] A spinning machine of a spinning line comprises a plurality of spinning points, each spinning point comprising a spindle for the formation of a spool of thread.
    [0010] Each spinning point further comprises a drafting device 1, into which a wick W1 enters and a stretched wick exits, and a compacting device, from which a compacted wick W3 emerges, generally intended to be twisted and wound for form the coil.
    [0011] According to a preferred embodiment, the stretching device 1 comprises, in the opposite direction to that of the advancement of the wick, a first pair of cylinders, formed by a first lower or stretching cylinder 4a and by a first pressure cylinder 4b, which surmounts the first drafting cylinder and is in pressure contact with it, in particular to stretch the wick in transit.
    [0012] The drafting device 1 furthermore comprises a second pair of cylinders, upstream of the first pair of cylinders, formed by the second drafting cylinder 6a and the second pressure cylinder 6b, and a third pair of cylinders, upstream of the second pair of cylinders, formed by the third drafting cylinder 8a and the third pressure cylinder 8b.
    [0013] The pairs of cylinders have different peripheral rotation speeds, so as to obtain stretching of the wick in advance; in general, the peripheral speed of rotation of the second pair of cylinders is greater than that of the third pair and the peripheral speed of rotation of the first pair is greater than that of the second pair.
    [0014] The ratios between the peripheral rotation speeds define the stretching ratios; in general, the draw ratio between the second and third pair is much less than the draw ratio between the first and second pair: this means that the wick draw is light between the third and second pair and very strong between the second and first pair of cylinders.
    [0015] Preferably, the drawing device 1 comprises an drawing cage 10 between the third pair of cylinders and the first pair of cylinders, of which the second pair of cylinders belongs.
    The cage 10 comprises an inversion striker 12, downstream of the second pressure cylinder 6b, spaced therefrom, and an upper strap 13, wound to the second cylinder 6b, from which it is driven in motion, and to the inversion striker 12, so as to form a closed path.
    [0017] The cage 10 further comprises a fixed lower guide 16, arranged downstream of the second drafting cylinder 6a, spaced from it, having a main portion 18 which extends mainly along the direction of advancement of the wick, ending near the striker 12, and a lower belt 20, wound to the second drafting cylinder 6a, from which it is driven in movement, and to the main portion 18, so as to form a closed path.
    [0018] The two belts 13, 20 are in contact with each other in a section aligned with the gap between the second pair of cylinders and the first pair of cylinders, and the wick is dragged between them.
    [0019] Upon exiting the cage 10, the wick passes into the first pair of cylinders and then enters the compacting device, from which it emerges as a compacted wick W3.
    [0020] The compacting device comprises an auxiliary pair of cylinders, downstream of the first pair of drawing cylinders, comprising an auxiliary cylinder 14a, supported at the ends by a pair of rolling bearings 15a, 15b, and a relative pressure cylinder 14b, which surmounts the auxiliary cylinder and is in pressure contact with it.
    [0021] Preferably, the pressure cylinders 4b, 6b, 8b, 14b and / or the stretching cylinders 4a, 6a, 8a and / or the auxiliary cylinder 14a are rubberized on the surface, to increase adhesion with the wick in transit.
    [0022] Preferably, the auxiliary pair of cylinders has a peripheral rotation speed greater than the pair of cylinders immediately upstream, to obtain a tension of the wick in transit.
    [0023] Generally, the drawing ratios in the pre-drawing area, that is, in the illustrated solution, between the second pair of drawing cylinders and the third pair of drawing cylinders, are variable between 1.10 and 1.40; the drawing ratios in the drawing area, that is, in the illustrated solution, between the first pair of drawing rolls and the second pair of drawing rolls, are variable between 20 and 60; the tension ratios between the auxiliary pair of cylinders and the first pair of drawing cylinders is variable between 1.01 and 1.10.
    [0024] The compacting device also includes a suction table 22 and an auxiliary belt 24 permeable to air, wrapped around the auxiliary cylinder 14a and the suction table 22 to form a closed path. The auxiliary belt 24 is pressed between the auxiliary cylinder 14a and the relative pressure cylinder 14b.
    [0025] The auxiliary belt 24 passes over a suction opening 34 of the suction table 22 and the wick destined for compaction is placed on it.
    [0026] The suction table 22, arranged downstream of the first pair of drawing rolls and upstream of the auxiliary pair of rolls, extends along the direction of advancement of the wick between the opening of the first pair of drawing rolls, very close to the point of minimum distance, and the light of the auxiliary pair of drawing cylinders, very close to the point of minimum distance.
    [0027] The suction table 22 has a main surface 30, preferably flat, on which the auxiliary belt 24 slides, which has the suction opening 34 operatively connected to forced suction means for exerting a suction action on the wick in transit on the air-permeable auxiliary belt 24.
    [0028] Preferably, the suction opening 34 has an elongated, slotted shape along the direction of advancement of the wick, for example along an opening axis K, inclined with respect to the direction of advancement Z.
    [0029] Preferably, moreover, the suction table 22 comprises a pair of channeling walls 38, protruding from the main surface 30, between which the auxiliary belt 24 is arranged.
    [0030] Preferably, the auxiliary belt 24, in its closed path, is in contact, at least for a stretch, with the surface of the first lower cylinder 4a. Advantageously, this allows the auxiliary belt 24 to be cleaned of dirt, fibers and dust.
    [0031] The compacting device also includes means for conveying the flow of aspirated air, suitable for defining near the suction opening 34, a transit chamber of the wick to be compacted.
    [0032] According to a preferred embodiment, said conveying means comprise a plate 40 applicable to the suction table 22 on the side of the main surface 30, for example by resting on the channeling walls 38 thereof.
    The plate 40 has an internal surface, facing the main surface 30, and an opposite external surface. Once the plate 40 has been applied to the suction table 22, a transit chamber is formed between the internal surface of the plate 40 and the main surface 30 of the suction table 22, through which the compacting wick passes.
    [0034] Preferably, the plate 40 has a recess 42 on the inlet side of the wick (and preferably a similar recess on the outlet side), which, together with the suction table 22, defines an inlet for the wick to be compacted (and preferably the similar indentation on the exit side defines an exit for the compacted wick).
    [0035] Advantageously, the conveying means, conveying the flow of air sucked by the suction opening 34, enhance the suction action.
    [0036] Preferably, moreover, the conveying means comprise labile (non-rigid) support means suitable for supporting the conveying means so as to be arranged in an accommodating manner with respect to the suction table 22.
    For example, said support means comprise a cylindrical or spherical constraint 44, applied to the plate 40, so that the plate is arranged in an accommodating manner with respect to the suction table 22, absorbing manufacturing or assembly tolerances.
    In addition, according to a preferred embodiment, the compaction device comprises at least one belt tensioner 46 for the auxiliary belt 24.
    [0039] For example, said belt tensioner 46 is of the gravity type.
    A modular suction unit 50 according to the present invention comprises a pair of tables 22 and a pair of respective auxiliary belts 24, to be applied to two adjacent spinning points.
    The modular assembly 50 comprises a single main suction duct 52, which extends along a main suction direction X.
    [0042] The modular assembly 50 also comprises a union body 54, from which the main suction duct 52 comes out, which develops along a union axis Y, perpendicular to the main suction axis X.
    [0043] Inside, the union body 54 is hollow and is separated into two compartments 56, in communication with the main suction duct 52, by a dividing wall 58, which extends along said union axis Y.
    [0044] The modular group 50 also includes two intermediate ducts 60, each of which extends along an intermediate axis H, coinciding with the two ducts 60, perpendicular to the union axis Y and the suction axis X.
    [0045] Each intermediate duct 60 is delimited along the intermediate axis H by the dividing wall 58, so as to be mutually separate.
    [0046] Furthermore, the modular assembly 50 comprises a pair of end hinges 62, internally hollow, each coupled tightly, for example by means of an O-ring 64, with the respective intermediate duct 60.
    [0047] The end shank 62 supports the suction table 22 of the compacting device, with sealing engagement, for example by means of an O-ring 66, and is internally provided with an elbow duct 68 in communication with the opening of suction 34 of the suction table 22.
    [0048] Preferably, the main suction duct 52 is made in one piece with connection means suitable for connecting the modular group 50 to a support frame of the spinning machine.
    [0049] Preferably, moreover, the union body 54 and the intermediate ducts 60 are made in a single piece, which can be sealed together, for example by means of an O-ring 70, with the piece containing the main suction duct 52, provided also means for connecting the modular group 50 to the frame of the spinning machine.
    [0050] Preferably, moreover, the end shank 62 is made in one piece and can be sealed with the intermediate duct 60.
    [0051] Preferably, moreover, the suction table 22 is made in one piece and can be sealed with the end shank 62.
    [0052] A compaction assembly according to the present invention comprises a plurality of compaction devices, that is, a plurality of modular groups 50 aligned along the auxiliary cylinder 14a, and movement means for moving the auxiliary cylinder 14a.
    The moving means comprise a plurality of transmission units 200, suitable for transmitting a rotation motion from a motorized cylinder to the auxiliary cylinder 14a, for example from an ironing cylinder, for example from the first ironing cylinder 4a of the first pair of stretch cylinders to the auxiliary cylinder 14a.
    The transmission unit 200 comprises a neutral transmission roller 202, for example consisting of two separate and coaxial wheels 202a, 202b, made of rubber or covered with rubber.
    The transmission roller 202 is supported by a stem 204 ending in a base 208.
    The transmission unit 200 further comprises a support 206 for fixing to a frame of the spinning machine, crossed by the stem 204.
    [0057] Preferably, moreover, the transmission assembly 200 comprises elastic return or thrust means, suitable for operating permanently on the transmission roller 202, for example through the rod 204, for returning the transmission roller 202 to the support 206 or to push the drive roller away from the support 206.
    [0058] For example, said elastic means comprise a spring 210, arranged in compression or in tension between the support 206 and the base 208.
    [0059] The transmission roller 202 is in contact with the auxiliary cylinder 14a and with a motorized cylinder, for example an ironing cylinder, for example the first ironing cylinder 4a. The elastic means operate so as to keep the transmission roller in contact with the two cylinders.
    In other words, while the drawing rolls 4a, 6a, 8a are connected to motorized means, for example equipped with electric motors, arranged in heads of the spinning machine, usually arranged at the ends of the spinning machine or in an intermediate position, the auxiliary cylinder 14a is moved by the transmission unit which acquires the rotary motion from one of said drawing cylinders.
    [0061] In particular, the transmission rollers 202 are arranged interspersed with at least one modular suction group 50, for example by two modular suction groups, that is, they are arranged every four spinning points.
    A handling assembly 250 according to the present invention comprises the compaction assembly, comprising a plurality of compaction devices, i.e. a plurality of modular units 50 aligned along the auxiliary cylinder 14a, and handling means for moving the cylinder auxiliary 14a, a plurality of pressure cylinders 4b aligned along the respective stretching cylinder 4a and engaged with it, a plurality of pressure cylinders 14b aligned along the auxiliary cylinder 14a and engaged with it, and a trolley 252 for supporting the cylinders of pressure 4b, 14b.
    [0063] For example, said carriage 252 comprises a central frame 254 which supports, on the one hand, a pair of coaxial pressure cylinders 14b, which can be engaged with the auxiliary cylinder 14a, and, on the other hand, a pair of pressure cylinders 4b, coaxial, engageable with the stretching cylinder 4a.
    The carriage 252 is movable for contacting or separating the pressure cylinders 4b, 14b from the respective drafting cylinder 4a and auxiliary cylinder 14a.
    [0065] A suction apparatus 300 according to the present invention is connected to a plurality of modular groups 50, and in particular to a plurality of main suction ducts 52 of said modular groups 50.
    [0066] In particular, the suction unit 300 comprises a plurality of terminal suction ducts 302, each coupled with the relative main suction duct 52 of the modular group 50, and a secondary collection duct 304, to which the suction terminal ducts 302.
    [0067] Each secondary collection conduit 304 is closed at one end by a cap 306, which can be opened to dedust the secondary conduit 304.
    [0068] The suction apparatus 300 comprises a plurality of secondary collection ducts 304 and a single main collection duct 308, operatively connected in suction to the secondary collection ducts 304.
    [0069] Preferably, the main collection conduit 308 is provided with a cap 310 at one end, which can be opened to dedust the main conduit 308.
    [0070] The suction apparatus 300 also preferably comprises a single suction impeller, preferably arranged at one of the ends of the spinning machine, operatively connected in suction with the main collecting duct 308.
    [0071] The entire spinning machine can therefore be divided into successive sections, in which each section comprises a plurality of spinning points, for example 24, to which the respective modular suction units 50 are applied, for example 12; for each section, the modular units are connected in suction with a secondary collection conduit 304. All the secondary collection conduits 304 are finally connected in suction to the main collection conduit 308, unique for the spinning machine, to which the impeller is connected.
    [0072] Each section includes the respective auxiliary cylinder 14a, which therefore does not extend over the entire spinning machine. On the contrary, the spinning machine comprises a plurality of coaxial and axially separated auxiliary cylinders, so as to facilitate the assembly operations of the replacement auxiliary belts 24, during maintenance operations.
    [0073] The elastic means acting on the transmission roller 202 allow the roller 202 to be moved away from the auxiliary cylinder, to allow the assembly operations of the replacement belts.
    [0074] Innovatively, the compaction device according to the present invention is particularly effective.
    [0075] Advantageously, moreover, the compacting device according to the present invention is easy to assemble and disassemble for maintenance operations.
    [0076] According to a further advantageous aspect, the action of the air flow in suction is particularly effective.
    [0077] Advantageously, moreover, the means for moving the auxiliary cylinder show little wear, even for long periods of use.
    [0078] According to a further advantageous aspect, the handling means are not influenced by the powder or short fibers, which generally accumulate in the transmission devices of the solutions of the prior art.
    [0079] According to an even further advantageous aspect, the suction apparatus according to the present invention allows to minimize the power used, providing a single impeller, and to easily perform the depolving operations of the ducts.
    [0080] According to a variant embodiment, the compacting device is located downstream of the third pair of stretch cylinders and upstream of the second pair or downstream of the second pair of stretch cylinders and upstream of the first.
    [0081] According to a further embodiment, the auxiliary pair of cylinders 14a, 14b has a peripheral speed of rotation lower than the pair of cylinders immediately upstream, for example lower than the peripheral speed of the first pair of stretch cylinders 4a, 4b, to obtain condensation of the wick in transit by virtue of the slowdown.
    [0082] For example, the ratio between the peripheral speed of the cylinders 14a, 14b of the auxiliary pair of cylinders and the peripheral speed of the cylinders 4a, 4b of the first pair of stretch cylinders is variable between 0.9 and 1.1.
    [0083] According to an even further embodiment, the portions of the auxiliary cylinder 14a in contact with the auxiliary belt 24 are smooth, i.e. free of scoring or regions worked to increase the adherence of the belt.
    [0084] Preferably, the suction opening 34 has an elongated shape along the direction of advancement of the wick, parallel to the direction of advancement Z.
    [0085] Preferably, moreover, the suction table 22 comprises a pair of channeling walls 38, protruding from the main surface 30, between which the auxiliary belt 24 is arranged, visible, i.e. without a plate applied to the suction table 22.
    [0086] Furthermore, according to a further variant embodiment, the belt tensioner 46 for the auxiliary belt 24 comprises at least a bush 146, for example made of bronze, on which the auxiliary belt 24 moves, and a rod 148, on which the bush 146 is mounted idle. The rod 148 is adjustable in height, so as to forcefully tension the auxiliary belt 24.
    [0087] According to a further embodiment, the end shank 62 and the suction table 22 are made in one piece and this unitary component is applied to the respective intermediate duct 60.
    [0088] According to an even further embodiment, the transmission unit 200 comprises the idle transmission roller 202, supported by the cushioned stem 204, for example by means of an elastic element, and connected to the support 206 for fixing to the frame of the spinning machine by an engagement lever 207, to which the stem 204 is hinged and in turn hinged to the support 206.
    [0089] In particular, the hinge axis J1 between the support 206 and the stem 204 is parallel and spaced with respect to the hinge axis J2 between the stem and the lever 207, so that the rotation of the lever 207, usually manual, involves an immediate raising or lowering of the transmission roller 202.
    [0090] When the engagement lever 207 is lowered, the transmission roller 202 is in contact with the auxiliary cylinder 14a and with a motorized cylinder, for example an ironing cylinder, preferably in a cushioned manner; when the engagement lever 207 is raised, the transmission roller 202 is disengaged from the auxiliary cylinder 14a.
    [0091] Furthermore, according to an even further embodiment, the moving means comprise a transmission unit 400 suitable for transmitting a rotation motion from a motorized cylinder to the auxiliary cylinder 14a, for example from an ironing cylinder, for example from the first stretch cylinder 4a of the first pair of stretch cylinders, to the auxiliary cylinder 14a by means of gears.
    [0092] For example, the transmission unit 400 comprises a first toothed wheel 402, coaxial with the first drafting cylinder 4a and integral with it in rotation, a second toothed wheel 404, suitable for meshing with the first toothed wheel 402, and a auxiliary wheel 406, coaxial with the auxiliary cylinder 14a and integral with it in rotation and suitable for meshing with the second toothed wheel 404.
    [0093] Preferably, the transmission assembly 400 further comprises a transmission box 410, traversed by the motorized cylinder, for example by the first drafting cylinder 4a, and engaged with the auxiliary cylinder 14a and containing the gear wheels 402, 404, 406 in oil bath.
    [0094] According to a preferred embodiment, multiple transmission groups 400 are provided.
    [0095] For example, in a short spinning machine, there are two transmission groups 400, one arranged at one end of the auxiliary cylinder 14a and the other arranged at the other end of the auxiliary cylinder 14a.
    [0096] In a further example, for example a long spinning machine, in which the first drafting cylinder 14a comprises axially aligned and separated sections, and also the auxiliary cylinder 14a, a transmission unit 400 is provided at each end of the sections of the auxiliary cylinder 14a. For example, in a spinning machine in which the first drafting cylinder 14a is separated into two axially aligned sections, also the auxiliary cylinder 14a is separated into two axially aligned sections and four transmission units 400 are provided.
    [0097] Furthermore, according to a preferred embodiment, the movement assembly 250 comprises a pair of supports 17a, 17b provided with respective seats to accommodate a portion of the auxiliary cylinder 14a; in particular, said supports 17a, 17b are fork-shaped to allow rapid removal of the auxiliary cylinder 14a.
    [0098] For example, the seats of said supports 17a, 17b are suitable for accommodating the rolling bearings 15a, 15b located at the ends of the auxiliary cylinder 14a.
    In other words, according to this embodiment, the auxiliary cylinder 14a is removable.
    权利要求:
    Claims (16)
    [1]
    claims
    1. Compaction device of a fiber wick (W1), comprising: - a first pair of cylinders comprising a lower cylinder (4a) and a pressure cylinder (4b) in pressure contact with it; - an auxiliary pair of cylinders comprising an auxiliary cylinder (14a) and a relative pressure cylinder (14b) in pressure contact with it, said auxiliary couple being downstream of said first pair of cylinders; - a suction table (22), arranged between the first pair of cylinders and the auxiliary pair of cylinders, equipped with a suction opening (34) connectable to suction means suitable for generating a flow of air sucked by the opening of suction (34); - an auxiliary belt (24) permeable to air, wound around the auxiliary cylinder (14a) and the suction table (22) to form a closed path passing over the suction opening (34) of the suction table (22) , on which the fiber wick (W1) intended for compaction is placed.
    [2]
    Device according to claim 1, wherein the auxiliary pair of cylinders (14a, 14b) has a peripheral speed of rotation lower than that of the first pair of cylinders (4a, 4b).
    [3]
    Device according to claim 1 or 2, wherein the portions of the auxiliary cylinder (14a) in contact with the auxiliary belt (24) are smooth.
    [4]
    Device according to one of the preceding claims, wherein the suction opening (34) has an elongated shape parallel to the direction of advancement (Z) of the wick.
    [5]
    Device according to one of the preceding claims, wherein the suction table (22) comprises a pair of channeling walls (38), protruding from a main surface (30), between which the auxiliary belt (24) is arranged, at sight.
    [6]
    Device according to one of the preceding claims, comprising a belt tensioner (46) for the auxiliary tongues (24) comprising at least one bush (146) on which the auxiliary belt (24) moves, and a rod (148) on which it is when the bush (146) is mounted idle, adjustable in height, so as to forcefully tension said belt.
    [7]
    Device according to one of the preceding claims, comprising a transmission unit (400) suitable for transmitting the rotation motion from the lower cylinder (4a) to the auxiliary cylinder (14a) by means of at least one gear.
    [8]
    Device according to claim 7, wherein transmission assemblies (400) are provided at each end of the auxiliary cylinder (14a).
    [9]
    Device according to one of the preceding claims, comprising a pair of supports (17a, 17b) suitable for supporting the auxiliary cylinder (14a) in a removable manner.
    [10]
    Device according to one of the preceding claims, wherein the lower cylinder (4a) is motorized and the auxiliary cylinder (14a) is driven by the lower cylinder (4a).
    [11]
    11. Compaction assembly of a fiber wick (W1), comprising a plurality of compaction devices, that is - a first pair of cylinders comprising a lower cylinder (4a) and a pressure cylinder (4b) in pressure contact with it ; - an auxiliary pair of cylinders comprising an auxiliary cylinder (14a) and a relative pressure cylinder (14b) in pressure contact with it, said auxiliary couple being downstream of said first pair of cylinders; - a suction table (22), arranged between the first pair of cylinders and the auxiliary pair of cylinders, equipped with a suction opening (34) connectable to suction means suitable for generating a flow of air sucked by the opening of suction (34); - an auxiliary belt (24) permeable to air, wound around the auxiliary cylinder (14a) and the suction table (22) to form a closed path passing over the suction opening (34) of the suction table (22) , on which the fiber wick (W1) intended for compaction is placed; - gear handling means for moving the auxiliary cylinder (14a) via the lower cylinder (4a).
    [12]
    12. Spinning machine comprising: - a lower cylinder (4a) and a plurality of pressure cylinders (4b) in pressure contact with it; - a plurality of auxiliary cylinders (14a), downstream of the lower cylinder (4a), coaxial, and a plurality of relative pressure cylinders (14b) in pressure contact with the auxiliary cylinders (14a); - a plurality of modular suction units (50) for pneumatic compaction of fiber belts (W1), each modular unit (50) comprising at least one suction table (22) having a suction opening (34) connectable to means suction and a respective auxiliary belt (24) permeable to air, wound around the respective auxiliary cylinder (14a) and the respective suction table (22) and passing over the respective suction opening (34); wherein the auxiliary cylinders (14a) are axially separated for the assembly of replacement auxiliary belts (24) for maintenance operations.
    [13]
    13. Spinning machine comprising: - a lower cylinder (4a) and a plurality of pressure cylinders (4b) in pressure contact with it; - a plurality of auxiliary cylinders (14a), downstream of the lower cylinder (4a), coaxial with each other, and a plurality of relative pressure cylinders (14b) in pressure contact with the auxiliary cylinders (14a); - a plurality of modular suction units (50) for pneumatic compaction of fiber belts (W1), each modular unit (50) comprising at least one suction table (22) having a suction opening (34) and a respective one air-permeable auxiliary belt (24), wound around the respective auxiliary cylinder (14a) and the respective suction table (22) and passing over the respective suction opening (34); - a suction apparatus (300) connected to the modular units (50) to obtain a flow of air sucked in from the main openings (34); wherein the suction apparatus (300) comprises a) a single main collection duct (308), engaged with an impeller; b) a plurality of secondary collection ducts (304) connected to the main collection duct (308); c) a plurality of suction end conduits (302), each coupled with the relative modular group (50); and wherein each secondary collection conduit (304) is connected to a subgroup of said suction terminal conduits (302).
    [14]
    Spinning machine according to claim 13, wherein each secondary collection conduit (304) is closed at one end by a cap (306), which can be opened to dedust the secondary conduit (304).
    [15]
    Spinning machine according to claim 13 or 14, wherein the main collecting duct (308) is provided with a cap (310) at one end, which can be opened to dedust the main duct (308).
    [16]
    Spinning machine according to one of claims 13 to 15, wherein the suction apparatus (300) comprises a single impeller operatively connected in suction with the main collecting duct (308).
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    同族专利:
    公开号 | 公开日
    CN105531409B|2017-07-18|
    JP3235971U|2022-01-18|
    CN105531409A|2016-04-27|
    ITBS20130120A1|2015-02-06|
    JP2019218678A|2019-12-26|
    JP2016532789A|2016-10-20|
    DE112014003606T5|2016-07-21|
    WO2015019244A3|2015-07-16|
    WO2015019244A2|2015-02-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4124313C2|1991-07-23|2000-05-04|Fritz Stahlecker|Spinning machine|
    DE19708410B4|1997-03-03|2007-03-29|Saurer Gmbh & Co. Kg|Drafting system for spinning machines with a fiber-bundling zone|
    EP0964945B1|1997-03-03|2001-06-27|Zinser Textilmaschinen GmbH|Drawing mechanism for spinning frames with a fibre bunching zone and ring-spinning frame equipped therewith|
    DE19921966B4|1999-05-12|2011-02-10|Spindelfabrik Suessen Gmbh|Device for compacting a stretched fiber structure|
    DE19922861A1|1999-05-19|2000-11-23|Stahlecker Fritz|System to condense a drawn sliver maintains a clamping action on a significant portion of the sliver fibers at the end of the drawing unit during the condensing action to prevent clogging the transport belt|
    DE19959563A1|1999-12-10|2001-06-13|Stahlecker Fritz|Air-permeable conveyor belt for transporting a fiber structure to be compressed|
    JP3820951B2|2001-10-04|2006-09-13|株式会社豊田自動織機|Fiber bundle focusing device in spinning machine|
    DE10343316A1|2003-09-10|2005-04-14|Wilhelm Stahlecker Gmbh|Fiber strand focussing apparatus of spinning machine, has tension roller that arranged at down stream side of deflection roller, enables deflection roller to deflect transport belt at specific angle|
    JP4844336B2|2006-10-11|2011-12-28|株式会社豊田自動織機|Fiber bundle concentrator in spinning machine|
    CN201220988Y|2008-07-09|2009-04-15|东台纺织机械有限责任公司|Compact spinning air-suction duct having branch wind pipe|
    JP5251855B2|2009-12-11|2013-07-31|株式会社豊田自動織機|Fiber bundle concentrator in spinning machine|
    CN201695123U|2010-06-12|2011-01-05|常州市同和纺织机械制造有限公司|Energy-saving negative-pressure pipeline mechanism of compact spinning device|
    IT1402834B1|2010-11-10|2013-09-27|Marzoli Spa|COMPACTION DEVICE OF A TAPE OF FIBER TEXTILE IN A FILATOIO|DE102015111133A1|2015-07-09|2017-01-12|Maschinenfabrik Rieter Ag|Spinning machine, guide rod and straps|
    CH714446A1|2017-12-15|2019-06-28|Rieter Ag Maschf|Suction pipe for a compacting device of a spinning machine.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT000120A|ITBS20130120A1|2013-08-05|2013-08-05|COMPACTION DEVICE OF A TAPE OF FIBER TEXTILE IN A FILATOIO|
    PCT/IB2014/063557|WO2015019244A2|2013-08-05|2014-07-30|Device for compacting a yarn in a spinning machine|
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