EP0299934B1 - Dispositif automatique pour la levée de canettes et l'insertion de tubes de bobines ainsi que le remplacement de bobines de mèche dans les renvideurs - Google Patents

Dispositif automatique pour la levée de canettes et l'insertion de tubes de bobines ainsi que le remplacement de bobines de mèche dans les renvideurs Download PDF

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Publication number
EP0299934B1
EP0299934B1 EP19880830300 EP88830300A EP0299934B1 EP 0299934 B1 EP0299934 B1 EP 0299934B1 EP 19880830300 EP19880830300 EP 19880830300 EP 88830300 A EP88830300 A EP 88830300A EP 0299934 B1 EP0299934 B1 EP 0299934B1
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EP
European Patent Office
Prior art keywords
bobbins
pirns
pirn
cops
spindles
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.)
Expired
Application number
EP19880830300
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German (de)
English (en)
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EP0299934A1 (fr
Inventor
Piero Bigagli
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.)
S BIGAGLI AND C SpA
Original Assignee
S BIGAGLI AND C SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from IT8709438A external-priority patent/IT1213806B/it
Priority claimed from IT8709437A external-priority patent/IT1213805B/it
Application filed by S BIGAGLI AND C SpA filed Critical S BIGAGLI AND C SpA
Publication of EP0299934A1 publication Critical patent/EP0299934A1/fr
Application granted granted Critical
Publication of EP0299934B1 publication Critical patent/EP0299934B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • D01H9/04—Doffing arrangements integral with spinning or twisting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/02—Arrangements for removing spent cores or receptacles and replacing by supply packages at paying-out stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H3/00—Spinning or twisting machines in which the product is wound-up intermittently, e.g. mules
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/005—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/02—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing completed take-up packages and replacing by bobbins, cores, or receptacles at take-up stations; Transferring material between adjacent full and empty take-up elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention refers to a plant for automatic replacement of bobbins of rove and for the junction of the roves in a spinning machine provided with supporting means on which the bobbins rest during feeding of the rove, said plant comprising an assembly for the transfer and the positioning of bobbins along the spinning machine, a unit supporting said transfer assembly above said supporting means, means for placing the bobbins on said supporting means, and means for removing the reeled off beams or bobbins and for the transfer thereof on one side of the machine.
  • the rove bobbins are fed to the spinning machine manually or by carriages through transfer devices; said bobbins are successively disposed by hand on suitable supports located on the machine.
  • the bobbin replacement is carried out manually and so is the rove re-attachment; the machine operators cut the roves during the work and remove the reeled off bobbins, look for the ends of the bobbin roves, place the bobbin onto the supports of the feeding bench and carry out the junction of the ends of the new rove and of the one in the process of formation by rubbing and twisting these ends one to the other.
  • a rove bobbin replacement plant is known, which is suitable for automatic replacement of bobbins in a ring spinning machine.
  • the structure of this plant is designed for an integration and cooperation with the members and structure of the ring spinner, and would not be suitable for an intermittent spinning machine, i.e. a self-acting mule.
  • a first object of the invention is, therefore, to provide a plant for automatic replacement of bobbins in an intermittent spinning machine.
  • a plant of the above mentioned type has been further developed in order to cooperate with an intermittent spinning machine having feeding drums on which the bobbins are supported during feeding of the rove.
  • the plant according to the invention is characterized in that said unit is able to be lowered along guiding means from an upper position toward a lower position to place the bobbins on the corresponding feeding drums of the spinning machine, that sliding guides are combined to said feeding drums, for guiding the terminal pins of the beams on which the rove bobbins are wound up, and that means are provided for tilting said guides to discharge the beams or bobbins to be removed onto said removing means.
  • the present invention allows the automatic execution of the bobbin replacement operations.
  • the machine operator has only the task of controlling the machine, predisposing the roves within suitable clamp means, giving the enable for starting the bobbin change; such enable can be effected automatically by providing sensors for the detection of the bobbin reeling-off degree, and actuation means.
  • the plant is advantageously designed for its application to spinning machines having a mobile feeding bench and fixed splindle bench, but it proves to be usable also to self-acting mules of other type like those with mobile spindle bench.
  • the actuation arrangement described later on is suitably controlled by a microprocessor or programmable logic operated electronic control unit (Central Processor Unit) or by a static logic or relay operated control system.
  • a microprocessor or programmable logic operated electronic control unit Central Processor Unit
  • a static logic or relay operated control system for controlling the actuation arrangement described later on.
  • Said means may comprise: a pirn transfer assembly which transfer empty pirns along the spinning machine; a pirn insertion unit which can be moved from an upper position, where it receives said empty pirns from said pirn transfer assembly to a lower position where it receives the formed cops removed from the spindles and inserts the empty pirns onto the spindles; means carried by said pirn insertion unit, for the insertion of the pirns onto the spindles; and a group combined with the spindles for removing the formed cops from the spindles and discharging them onto a cop conveyor carried by said pirn insertion unit.
  • the plant according to the invention is able to perform the operations simultaneously on all the spindles, or may carry out the doffing of the cops and the replacement of pirns on each half portion of the machine.
  • the plant can possibly comprise means for orienting the pirns and transferring them to a temporary storing container, means forming such container, means for extracting the cops from the spindles with the breaking off of the yarns and the laying down of cops onto means for the transfer thereof beside the machine.
  • the present invention allows the automatic execution of the above mentioned operations.
  • the machine operator has only the task of controlling said machine and enabling the start of the cop doffing; such enabling may take place automatically by providing sensors for the detection of the cop packing degree, and actuation devices.
  • the present invention achieves a significant rapidity and an optimal efficiency in carrying out the above mentioned operations.
  • An advantage offered by the plant according to the invention is that it extends mostly vertically so as to engage a minimum surface and to normally stand above the spindle zone.
  • the cop doffing device and the bobbin replacement devices forming an integrated assembly and making up a single, compact, slightly cumbersome structure suitable for carrying out the operations in much reduced time.
  • the high number of spinning units (spindles), clamp or similar devices of mechanical or pneumatic type usually employed in other cop doffing systems have not been used, in order to semplify the devices and reducing the maintenance.
  • the invention achieves a significant rapidity and optimal efficiency in carrying out the above mentioned operations.
  • An advantage offered by the plant according to the invention is that it has mostly a vertical extention so as to engage a minimal surface thereby being able to normally dwell above the spindle zone and the access zone for the control and reattachment of broken yarns, even in a plant which carries out both functions (bobbin replacement and cop doffing).
  • the spinning plant comprises a spindle bench 1 which, in the illustrated embodiment, is fixed and combined to tracks 3 for the sliding of the bobbin feeding bench 5.
  • This bench comprises a row of feeding drums 7 on which the bobbins, generally indicated by C, are made to rest, the sticks or beams of said bobbins being made to rest on inclined guiding and lowering surfaces 9.
  • Numeral 11 indicates a thread-guiding and rove-cutting assembly
  • numerals 13 and 82 indicate the components of a junction chamber of a type known per se
  • numeral 15 indicates the drafting assembly
  • numeral 17 indicates the rove pressing cylinders for the feeding of same rove to the spinning bay F.
  • This bay extends up to the end of the respective spindle 19 mounted on a spindle board 20, the whole being placed on the spindle bench 1.
  • On the side 1A of said bench there are pivotally mounted the winding faller with relevant faller sickles 22 and the counter-faller with relevant counter-faller sickles 24, for the control of yarn F during the winding, backing off and underwinding phases.
  • drums 26 are mounted on bench 1, which drive spindles 19 through conventional belts 28 or other equivalent means, the spindle-acutating drums 26 being driven by a motor group 30.
  • Numeral 32 indicates a second motor group which drives the movements of the feeding bench 5 on the track guides 3, all this in a per se known manner.
  • Numeral 34 indicates the assembly for the control of the drafting assembly 15 and the feeding drums 7.
  • a structure 40 Adjacent and above the spindles bench 1 a structure 40 is provided with posts 42 and brackets 43 to support the assembly for the change of the bobbins and the replacement of the pirns together with the doffing of the formed cops or spools.
  • the brackets 43 of each machine are connected one to the other, or they may consist of a single piece, thereby allowing the set of posts 42 to be reduced and thus forming a multiport passageway.
  • a system 44 is provided on the rear of the machine for the collection and removal of the reeled-off bobbins.
  • inclined guides 50 extend downwards in a direction away from posts 42, which guides are intended to provide an independent movement of group 52 for the replacement of the bobbins, and of group 54 for the doffing of the cops and the replacement of the pirns.
  • the guides 50 may have an inclination between 0° and 30°.
  • the assembly of members 11 includes a rove guiding rack 11A and a pair of blades 11B and 11C which are transversally moved to operate the cutting of the rove, the cut end thereof lying on drum 7 as shown at ST1 in Fig. 11.
  • bobbins C are made to unwind and adhere to drums 7 while pins 58A projecting from the ends of beam 58 slide along the inclined guides 9 so as to maintain the bobbins C in a stable balance condition.
  • Guides 9 are rigidly connected at the lower end to shaft 60; this allows them to rotate from the position illustrated with solid line in Fig. 11 up to the position indicated by 9X.
  • the actuation of shaft 60 is carried out by means of one or more actuators, or pneumatic pistons or an electrical motor.
  • the partially (C1) or totally reeled-off bobbins are discharged according to arrow FC onto the removel group 44, as during the rotation of guides 9 pins 58A encounter the interruptions 9Y provided along said guides.
  • the actuation of guides 9 takes place when the feeding bench has completed its outward run (during the yarn twisting phase).
  • Group 44 comprises two inclined hopper-like walls 64 and 66, between which a conveyer 68, preferably of belt type, is provided for moving away the partially or totally reeled-off bobbins up to a withdrawal or piling or selection means 70 (Fig. 1); the conveyor 68 is put into operation during the spinning phase.
  • a conveyer 68 preferably of belt type
  • the dwell time of this bench at the end of the outward run may not be sufficient to perform the cutting and the unloading prior to the successive inward run.
  • the control logic of the machine provides for the suitable slowing down of the spindles in order to prolong the dwell time.
  • the feeding bench 5 moves near the spindle bench 1 (Fig. 3), it reaches a position in which a feeding of new bobbins C which are in overhanging and stand-by condition over group 52 (Fig. 2) may be performed.
  • the bobbins CN to be laid down on the feeding bench 5 are supported by arms 72 at positions corresponding to the guide arms 9. Said arms 72 engage pins 58A of beams 58.
  • These arms are carried by a supporting and guiding structure 74 which is borne (Fig. 10) through brackets 76 by a slide 78 able to be slidingly moved along guides 50 from the lifted position of Fig. 2 to the lowered position of Fig. 3.
  • bobbins CN are brought close to the feeding drums 7 up to make said bobbins rest thereon in off-center position towards the guides 9 with respect to the higher position of said drums.
  • bobbins CN are free to roll as far as to rest with pins 58A onto guides 9 in their operating position shown in Fig. 3.
  • the roves initial ends of bobbins CN have been previously engaged to clamp means disposed on a support bar borne by arms 84 connected to members 78, 76, 74.
  • arms 84 bring the clamp means 82 in correspondence of devices 13 so as to make up the junction chambers.
  • the devices formed by clamps 82 and half-chambers 13 carry out the junction between the residual rove of bay F, cut out from the disposed bobbins, and the initial rove ST2 of the new bobbins CN.
  • the change of bobbins on either side of the machine can be obtained by using half the number of arms 72 of conveyor 74. Consequently, the actuations for the cut of the roves 11 for the discharge of bobbins 60 and for the joining of the roves through device 13-82, must be differentiated on the two sides of the machine. It is thus possible to program the replacement on the two sides separately, in order to obtain a distributed consumption of material and control the work with greater flexibility.
  • said bobbins are connected on arms 72 mounted on a chain 88 which is suitably driven onto the ends 90 (see Fig. 9) of structure 74.
  • the bobbins move along a trajectory which corresponds to the spindle front and which projects from the latter on one side in correspondence of the zone 92 for the loading of bobbins CN, into which the bobbins may be fed for example according to arrow FCN.
  • the loading of the bobbins takes place during the spinning cycle between two successive replacements on the bobbins.
  • the chain 88 is moved by a step corresponding to the spacing between two bobbins, so as to perform the successive loading.
  • the station 92 it is also possible to carry out an automated loading.
  • the operator has the time to perform the loading and displacement of bobbins along the work front of the machine, and also the time to search for the ends of roves ST2 of said bobbins CN loaded on arms 72, in order to engage them to the clamps 82 which are carried by the arms 84 of the members 78, 76, 74.
  • the insertion of the roves into the clamps is performed when all the bobbins are predisposed on the chain 88 of conveyor 74.
  • the clamps may be connected to the chain by means of arms, thus allowing the predisposition of the roves inside the clamps soon after the loading of a bobbin in the loading station.
  • the invention provides also a bobbin blocking device 75 for preventing roves ST2, predisposed within clamps 82, from being broken off by accidental rotations of bobbins CN which are overhanged on arms 72.
  • the device (Fig. 19) is made up of a jaw 75A articulated on a pin 75B.
  • a spring 75C keeps the jaw alternatively in the work position depicted in Fig. 19, or in a disengagement position 75X.
  • the predisposition of the bobbins on conveyor 74 may be limited to half the available places when changing the bobbins on one side of the spinning machine only.
  • a further modified embodiment provides a rove cutting device mounted on a bar connected with arms 84. The device is put into operation when the feeding bench is at the end of the outward run thus allowing the feeding bench weight not to be increased by blades 11 and relevant actuation means.
  • Cops S formed on pirns T fitted over the spindles 19 must be taken out from the spindles on which the pirns have been inserted with some force (Fig. 4), to be discharged and moved away for the replacement of pirns T.
  • the underwinding yarn 10 which is engaged to the spindle 19 beneath the pirn of the completed cop.
  • This underwinding yarn may be made up of the initial length containing the rove fastening obtained by devices 13-82 in a possible bobbin replacement cycle which could be provided prior to the cop doffing cycle (two cop forming cycles generally being provided for each bobbin reeling-off cycle).
  • the cop removal must then be provided.
  • This is carried out by a so-called "undermining" or extractor device.
  • This includes a comb-like extractor bar 102 with an edge provided with recesses wherein the spindles 19 are placed; during the spinning cycle, said bar 102 dwells in the zone of underwinding yarn 10.
  • the extractor bar 102 is slidingly guided according to arrow F102 parallel to the axis of the spindles by the rod drive 104, the rods being driven by a shaft 106 disposed along the spindle front and which operates the lifting and the lowering of said extractor by means of rack and pinion systems.
  • the extractor rods 104 can be driven also through electrical actuator systems or pneumatic or oleodynamic pistons.
  • the extraction takes place in two times.
  • the faller sickle In a first lifting phase of the extractor, the faller sickle is kept in the position represented in Fig. 13, with the purpose of maintaining the yarn 10 in the underwinding position. Subsequently, after having brought the extractor 102 back to the rest position, che faller sickle is moved to a position that will not hinder the trajectory of the extracted cops or of the cop doffing group 54. Finally, the last lifting of the extractor is carried out, thus the pirns T with cops S are made to slide upwards along the inclined spindles up to the cop falling position, as shown in Fig. 5, in which the falling cops SC are indicated with broken lines.
  • the cops are collected by a belt conveyor 110 which moves them along the front as far as to discharge them onto a further conveyor or carrier 112 or otherwise move them away or accumulate them (Fig. 1). Downstream of conveyor 112, or as an alternative to it, a gauge separating device may be provided for the separation of completed cops from empty pirns which could be present on the spindles or removed through extractor 102 and belt 110.
  • the conveyor 110 is placed on group 54 carried by a slide 114 and capable of sliding along the inclined guides of the structure 40. Said slide 114 may be actuated by winch or jack systems, through drawrods, as well as by electrical, pneumatic or oleodynamic actuators.
  • Conveyor 110 reaches the cop collection at the end of the first portion of the lowering stroke of slide 114 as shown in Fig. 5, the conveyor 110 being above the trajectory of the yarns F being formed. Afterwards, for the insertion of the new pirns on spindles 19, slide 114 is further lowered until it grazes the trajectories of yarns F with the lower portion of the frame of conveyor 110.
  • the device for the insertion of the pirns on the spindles is illustrated in detail in Figs. 7 and 8 as well as in Figs. 5 and 6, in order to show the positioning phases, while the pirn feeding is shown in Figs. 14 and 16.
  • a support system 120 is provided on structure 40 so as to guide, along the front of the spinning machine in elevated position, a conveyor including a continuous belt or chain 122 ⁇ possibly a double one ⁇ suitably driven and carrying a set of mobile seats 124; said seats 124 are intended to receive the pirns T which are fitted thereinto in the inclined arrangement shown in the drawing, said pirns being received in the mobile seats 124, moved by chain 122 and kept at the bottom by a shaped support 126 and further retained by a wall 130, which is opposite to the mobile seats 124 and makes part of group 54 borne by slide 114 sliding on the inclined guides 50 of the structure 40.
  • the conveyor 122 which receives pirns T outwardly of the machine front in the manners to be described later on, slides along the machine front in the direction of arrow f122 in front of a rack structure formed by the fixed wall 130, so as to lay down pirns T into seats provided for them in the wall 130 in correspondence of the spindles; these fixed seats, indicated by 132, are shaped as shown in Fig. 8 with the wall which is previously encountered during the movement of conveyor 122 being inclined, while the inclined wall of seats 124 is the one ahead with respect of the direction of motion of conveyor 122.
  • each seat 124 may have a spring 134 which cooperates with the gravity action to urge the pirns T to move into seats 132 of the opposite wall 130.
  • section 138 which may be a continuous bar or a set of small walls corresponding to seats 132, is mounted so as to move in the direction F138 and, in this particular case, it rotates about a horizontal axis defined by pins 140 (see Fig. 7) making part of a unit which comprises, in addition to said retaining section 138, also arms 142, urged by tensile springs 144 having the function of engaging the retaining section 138 so as to keep it in the position of Fig. 7.
  • the arms 142 may be recalled in the direction of arrow F142 towards a shaft 148 making part of group 54 which is borne by slide 144, in similar way as the unit 142, 138, 140.
  • the shaft 148 is driven by an actuator or motor and has, in correspondence of each seat 132 and thus in correspondence of each spindle 19, a helical spring 150 anchored at 152 to the shaft 148 and having at its free end a projecting extension with a block 154 corresponding to the upper end of the fixed seat 132, which block 154 can act on the pirn located at T2 within seat 132 to launch said pirn onto the spindle.
  • Shaft 148 may be rotated, from a position in which the blocks 154 are lifted from the seat, in such a direction as to press said blocks 154 against the upper end of the pirns at position T2, in order to elastically load these pirns by axially urging them downwards and pressing them against the retaining member 138.
  • Rope 146 which drives the unit 142-138, is driven in turn by shaft 148; the rotation of the latter in the direction F148 causes the elastic loading of springs 150 and the elastic action of blocks 154 on pirns T2; the rope 146 overtakes the position 146A and this causes also the return of arms 142 according to arrow F142 and thus the removal of the retaining means 138 from the base of the pirns located at T2.
  • This operation is suitably carried out in two steps, the first of which after the pirns have been all positioned in the support or container made up of the wall 130 and of fixed seats 132, and shortly before the lowering of slide 114; the second after slide 114 has been lowered first to receive the cops SC taken out from the spindles and then to bring pirns T2 into allignment with the spindles; consequently, as soon as the retaining means 138 move away from seats 132, owing to the effect of the elastic action of springs 150 transmitted by blocks 154, the pirns T2 are projected onto the spindles and forced by inertia thereon through a single operation. The replacement of yarn cops with empty pirns is thereby obtained.
  • the operation for the loading of pirns T2 on spindles 19 is instantaneous, while the feeding of the pirns to the seats 132 may take place during the cycle of yarn formation on the cops.
  • the assembly 54 moves again upwards along guides 50 to allow the free operation of the faller sickles and of faller and counter-faller to perform the typical operations of the intermittent spinning machine (self-acting mule) in question.
  • the following actuators shall be suitably duplicated and made independent on two sides: extractor 102 and shaft 148 for the loading and the ejection of the pirns.
  • the shaft 148 of the not involved side is made to intervene merely to give a preload to the pirns located in the fixed seats 132 and prevent same pirns from accidentally falling down during the manoeuvre of group 54 during the doffing execution on the concerned side.
  • a band 116 is provided (Fig. 4) articulated on hinges, which closes the free zone between belt 110 and rack 130.
  • a conveyor-elevator 172 takes out the randomly disposed pirns T by means of fin or hook members 174 of said conveyor, lifts them up and then drop them into a hopper 176 shaped to receive the frusto-conical pirns left in horizontal arrangement by the elevator 172.
  • neck shaped elements 178 are provided (Fig. 16), able to allow the passage of only the narrow part of the pirn.
  • Pusher 186 may be suitably operated through at least an air jet activated in synchronism with the passage of the mobile seat 124 in front of pirn T4 located in the wheel 182.
  • FIG. 17 A modified embodiment of the apparatus described in Figs. 14 to 16 is illustrated in Fig. 17.
  • the functions of pirns overturning and insertion within the mobile seats 124 are carried out by a static conveyor made up of an inclined and shaped plane 190; owing to their conical shape, the pirns released by elevator 172 roll onto plane 190 in a known manner, placing themselves with their major base downwards and are guided in correspondence of the location where the pusher 186 is placed and is able to intervene by inserting them into the mobile seats 124.
  • FIG. 22 to 24 A further modified embodiment of the described devices is shown in Figs. 22 to 24.
  • the pirns are stacked in a container 170 so as to have them parallel to one another but not necessarily oriented in the same direction.
  • the lower zone of the container is made to converge into a feeding hopper 176 through a gauge 178 of the type already described.
  • the supply of pirns to the gauge is controlled by an element 198 having a concave shape and provided with a rotary motion.
  • element 198 having a concave shape and provided with a rotary motion.
  • one pirn is passed to the gauge 178.
  • the pirns are guided by a conveyor 200 until they are inserted into relevant mobile seats 204 similar to those indicated by 124 previously described.
  • Such seats are dragged along by the conveyor 202, guided by the three pinions 206, 208 and 210.
  • the embracing zone of pinion 206 facilitates the transit of pirns from conveyor 200 to seat 204; the length between pinions 208 and 210 allows the transit of pirns from seats 204 to seats 124 through the fixed profiles 230 as shown in Fig. 24.
  • Actuations of conveyors of mobile seats 124 and 204, pusher 186, wheel 182, elevator 172, element 198 and of motions upstream of container 170 in the various solutions presented are provided with systems for controlling the number of pirns being fed and their accumulation inside the container 170, which may be of optical or other type, as well as with systems for the sinchronization and phasing of the individual actuations.
  • the actuations themselves may be of mechanical, electrical, pneumatic or oleodynamic type.
  • Fig. 18 illustrates the automation cycle of the self-acting mule.
  • Diagram A relates to bobbin predisposition (during the spinning cycle) and to the cycle for the predisposition of pirns into the container (during the spinning cycle) and in particular: A1 indicates the actuation of the conveyor chain; A2 indicates the actuation of the pirn conveyor; A3 indicates the actuation of the pirn elevator.
  • Diagram B relates to the bobbin change and the underwinding and, in particular: B1 indicates the actuation of the feeding bench; B2 indicates the cutting actuation; B3 indicates the actuation of beam discharge; B4 indicates the actuation of group 52 of the bobbin chain; B5 indicates the actuation of the rove junction; B6 indicates the actuation of the beam belt.
  • Diagram C relates to the cop doffing and in particular: C3 is the actuation of cop-pirn group 54; C4 is the actuation of the extractor; C5 is the actuation of the spring shaft; C6 is the actuation of the safeguard band; C7 is the actuation of the removal belt.
  • D1-D2 indicate a stretch in which the machine comes to a stop for the replacement of bobbins
  • D2-D3 indicate a stretch in which the machine comes to a stop for the replacement of cops with empty pirns.
  • D4 is the instant in which the unloading of cops is ended.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (13)

1. Dispositif de remplacement automatique de bobines (CN) de mèche et de jonction des mèches dans une machine de filature intermittente (renvideur) qui est munie de tambours d'alimentation (7) sur lesquels reposent les bobines pendant l'alimentation de la mèche, ledit dispositif comprenant un ensemble (74) de transfert et de positionnement des bobines (CN) le long de la machine de filature au-dessus de ses tambours d'alimentation (7); une unité (52) supportant ledit ensemble de transfert (74) au-dessus desdits tambours d'alimentation (7), des moyens (50, 72) pour placer les bobines sur lesdits tambours d'alimentation (7), et des moyens (44) pour retirer les tubes de bobines dévidés (58) ou les bobines (CN) et les transférer sur un côté de la machine,
caractérisé en ce que ladite unité (52) est capable d'être abaissée le long de moyens de guidage (50) depuis une position haute en direction d'une position basse pour placer les bobines (CN) sur les tambours d'alimentation correspondants (7) de la machine de filature, des guides de glissement (9) sont combinés auxdits tambours d'alimentation (7) pour guider les axes d'extrémité (58A) des tubes de bobines (58) sur lesquelles les bobines de mèche (CN) sont enroulées, et des moyens (60) sont prévus pour faire basculer lesdits guides (9) et décharger les tubes (58) des bobines (CN) et les déposer sur lesdits moyens d'évacuation (54).
2. Dispositif selon la revendication 1, caractérisé en ce que l'ensemble (74) de transfert des bobines le long de la machine de filature comprend des crochets (72) pour suspendre les axes d'extrémité (58A) des tubes de bobines (58) capables de lâcher les bobines lors de leur venue en butée sur les tambours d'alimentation (7) dans une position hors centre, la bobine roulant le long desdits tambours (7) jusqu'à ce qu'elle repose contre les guides de glissement (9).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les guides (9) destinés au glissement des axes d'extrémité des tubes de bobines (58A) sont susceptibles d'être inclinés autour d'un axe (60) parallèle à celui des tubes de bobines, de manière à dégager les axes de bobines (58) ou les bobines dévidées (C1) et les amener à tomber sur les moyens de transfert (44).
4. Dispositif selon une ou plusieurs des revendications 1 à 3, caractérisé en ce que les moyens (44) de retrait des tubes de bobines (58) et des bobines dévidées (C1) sont disposés à l'arrière de la machine sur le côté qui est à l'opposé du banc à broches (1), c'est-à-dire sur le côté de la course maximale vers l'extérieur du banc de support de bobines (5), alors que l'ensemble de transfert de bobines (74) est adjacent au banc à broches (1).
5. Dispositif selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que des dispositifs (13) sont prévus sur le banc de support de bobines (5) en vue de la jonction des mèches et de leur coupe, et en ce que des pinces (82) sont prévues sur l'unité (52) apte à être abaissée pour le dépôt des bobines afin de retenir les extrémités initiales des mèches (ST1), lesdites pinces étant aptes à coopérer avec lesdits dispositifs (13) destinés à la jonction.
6. Dispositif selon une ou plusieurs des revendications 2 à 5, caractérisé en ce qu'il comprend, sur les crochets de suspension (72) de l'ensemble de transfert de bobines (74) des moyens (75, 75A) pour freiner les tiges de bobines (58A) et leur éviter de tourner avant leur dégagement.
7. Dispositif selon une ou plusieurs des revendications 1 à 6, caractérisé en ce qu'il est combiné à des moyens (102, 120, 138) pour la levée des canettes (S) et leur remplacement par des tubes vides (T).
8. Dispositif selon la revendication 7, caractérisé en ce qu'une structure (44, 42), combinée au banc à broches (1) qui avantageusement fixe, supporte l'ensemble de transfert (74) destiné aux bobines de même que les moyens (102, 120, 138) destinés au remplacement des canettes (S) par des tubes vides (T).
9. Dispositif selon la revendication 7 ou 8, caractérisé en ce que lesdits moyens de levée automatique des canettes (S) et de remplacement de canettes (S) par des tubes vides (T) comprennent: un ensemble de transfert de tubes (120, 122, 120) qui transfère les tubes vides (T1) le long de la machine de filature; une unité d'insertion de tubes (54) qui peut être déplacée d'une position haute où elle reçoit lesdits tubes vides (T1) dudit ensemble de transfert de tubes (120, 122, 124) vers une position basse où il reçoit les canettes formées (S) retirées des broches (19) et insert les tubes vides (T1) sur les broches (19); des moyens (138, 148, 150) supportés par ladite unité d'insertion de tubes (54) en vue de l'insertion des tubes (T1) sur les broches (19); et un groupe (102, 104) combiné aux broches (19) pour retirer les canettes formées (S) des broches (19) et les décharger sur un convoyeur de canettes (110) supporté par ladite unité d'insertion de tubes (54).
10. Dispositif selon la revendication 9, caractérisé en ce qu'il est prévu sur l'unité d'insertion de tubes (54) un ensemble de support à râtelier (130, 132) avec des sièges (132) pour les tubes en correspondance des broches (19), des moyens de retenue (138) et des moyens de poussée et de lancement (150, 154) destinés à l'insertion des tubes (T) sur les broches (19), en ce que l'unité de transfert de tubes (54) comprend un convoyeur de tubes transversal (122, 124) apte à coulisser à l'avant dudit ensemble à râtelier (130, 132) pour transférer les tubes dans les sièges vides (132) de cet ensemble, et des moyens de commande (148) pour le chargement des ressorts (150), pour la poussée et le lancement des tubes, et pour le dégagement des moyens de retenue (138).
11. Dispositif selon les revendications 9 et 10, caractérisé en ce que ledit convoyeur de canettes (110) supporté par ladite unité d'insertion de tubes (54) est soulevé à un niveau correspondant à l'extrémité supérieure des broches (19) par ladite unité (54) pour recevoir les canettes extraites, ladite unité (54) étant apte à être abaissée encore plus pour positionner les tubes situés sur le râtelier (134, 132) en alignement et à proximité des broches (19), et pour autoriser l'insertion des tubes et leur fixation sur les tiges des broches.
12. Dispositif selon les revendications 10 et 11, caractérisé en ce que le convoyeur de tubes transversal (120, 122, 124) coulisse à l'avant de l'ensemble de support à râtelier (130, 132) dans la position soulevée de ce dernier pour le chargement des tubes; ledit convoyeur et ledit ensemble à râtelier étant inclinés pour faciliter le transfert des tubes.
13. Dispositif selon une ou plusieurs des revendications 9 à 12, caractérisé en ce que le groupe prévu pour retirer les canettes formées (S) des broches comprend une barre d'extraction en forme de peigne (102) pour extraire les canettes et les soulever en deux fois jusqu'à ce qu'elles tombent sur le convoyeur (110) supporté par l'unité d'insertion de tubes (54).
EP19880830300 1987-07-17 1988-07-14 Dispositif automatique pour la levée de canettes et l'insertion de tubes de bobines ainsi que le remplacement de bobines de mèche dans les renvideurs Expired EP0299934B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT943887 1987-07-17
IT8709438A IT1213806B (it) 1987-07-17 1987-07-17 Impianto per il cambio delle cannelle su filatoi intermittenti (self-acting)
IT8709437A IT1213805B (it) 1987-07-17 1987-07-17 Impianto per la levata delle spole e l'inserimento di tubetti vuoti su filatoi intermittenti (self-acting)
IT943787 1987-07-17

Publications (2)

Publication Number Publication Date
EP0299934A1 EP0299934A1 (fr) 1989-01-18
EP0299934B1 true EP0299934B1 (fr) 1992-01-08

Family

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Application Number Title Priority Date Filing Date
EP19880830300 Expired EP0299934B1 (fr) 1987-07-17 1988-07-14 Dispositif automatique pour la levée de canettes et l'insertion de tubes de bobines ainsi que le remplacement de bobines de mèche dans les renvideurs

Country Status (4)

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EP (1) EP0299934B1 (fr)
JP (1) JP2736257B2 (fr)
DE (1) DE3867554D1 (fr)
ES (1) ES2029075T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1241755B (it) * 1990-07-13 1994-02-01 Bigagli & C S P A S Metodo e dispositivo per la levata delle spole e per lo strappo del filo in un filatoio
ITUD20050093A1 (it) * 2005-05-31 2006-12-01 Proxima Srl Filatoio intermittente
ITUB20155494A1 (it) * 2015-11-11 2017-05-11 Gbs Srl 59100 Prato / It Dispositivo automatico per la alimentazione dei subbi di stoppino in una filanda
CN113044668B (zh) * 2021-03-10 2022-10-11 诸暨市晗悦化纤股份有限公司 一种加弹机自动换筒装置
CN114180395B (zh) * 2021-12-01 2023-12-08 三峡大学 一种输电线中电线架设用稳定夹取牵引装置及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502149C (de) * 1929-02-12 1930-07-09 Charles Schrans Vorrichtung zum selbsttaetigen Auswechseln der vollen Spulen gegen leere Spulenhuelsen fuer Spinnmaschinen
GB800271A (en) * 1953-12-23 1958-08-20 William Hatch Improvements in or relating to mechanical doffing apparatus for textile spinning frames
US3678672A (en) * 1971-02-01 1972-07-25 Stevens & Co Inc J P Quill or bobbin spinning and winding frame with semi-automatic doffing and donning
JPS5233699B2 (fr) * 1973-06-26 1977-08-30
JPS5464137A (en) * 1977-10-28 1979-05-23 Osaka Prefecture Automatic bundle exchanging apparatus for mule spinning frame
US4165046A (en) * 1977-11-30 1979-08-21 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Doffing apparatus in spinning machine

Also Published As

Publication number Publication date
DE3867554D1 (de) 1992-02-20
EP0299934A1 (fr) 1989-01-18
JP2736257B2 (ja) 1998-04-02
JPS6477629A (en) 1989-03-23
ES2029075T3 (es) 1992-07-16

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