US3128590A - Automatic thread joiner for continuous spinning machines - Google Patents

Automatic thread joiner for continuous spinning machines Download PDF

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Publication number
US3128590A
US3128590A US201495A US20149562A US3128590A US 3128590 A US3128590 A US 3128590A US 201495 A US201495 A US 201495A US 20149562 A US20149562 A US 20149562A US 3128590 A US3128590 A US 3128590A
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thread
lever
carriage
ring
traveller
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US201495A
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English (en)
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Roberto Escursell Prat
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Individual
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/013—Carriages travelling along the machines

Definitions

  • the apparatus comprises a carriage adapted to move in front of and along the spinning spindles of one or more machines and includ ing a detector which upon detecting the absence of one of the threads moving towards the bobbins, stops the carriage and starts the thread-joining mechanisms means on the carriage are movable along the guide rings of the traveller and move the traveller into an appropriate position for being threaded with the thread.
  • an extractor for extracting the broken end of the thread from the bobbin means for threading such end through the traveller, means for tensioning a thread between the mouthpiece of said extractor and the bobbin, means for threading said tensioned thread through the traveller, means for raising the extractor together with the tensioned thread, means for threading the same into the thread guide, and a device for gripping the thread raised by the extractor and having means for cutting off the excess thread.
  • the latter device places the gripped thread in engagement with the roving issuing from the drafting rollers.
  • the devices co-operating with the traveller and with the thread reeled onto the bobbin may comprise a raising mechanism which is operated by the ring rail plate in order to place the last-mentioned devices at all times at the required operative height.
  • FIG. 1 is a perspective view of the apparatus, some parts being broken away in order that other elements may be seen;
  • FIG. 2 is a side elevation of the apparatus, looking in the direction of the arrow II in FIG. 1;
  • FIG. 3 shows the detector and stop motion which operates when the apparatus discovers a broken thread
  • FIG. 4 shows how the detector co-operates with the threads of the spinning machine
  • FIG. 5 is a plan view showing the system for stopping the spindle and moving the same backwards
  • FIG. 6 is a plan view showing the system for hunting for the traveller ring and placing the same in the position for threading;
  • FIGS. 7 to 10 show various phases of the passage of the thread through the traveller
  • FIG. 11 shows how the thread end is searched for by a suction tube placed over the bobbin
  • FIG. 12 is a plan view of the mechanism shown in FIG. 11;
  • FIGS. 13 to 15 show the system for moving the thread-searching mechanism, traveller hunter and thread inserter vertically;
  • FIGS. 16 and 17 show the passage of the thread through the thread guide
  • FIGS. 18 to 20 illustrate the thread-joining device
  • FIG. 21 illustrates the device for threading the thread through the traveller
  • FIGS. 22 to 27 illustrate various phases in the general operation of the apparatus.
  • FIG. 28 is a perspective view of a modified apparatus
  • FIGS. 29 and 30 are details of FIG. 28.
  • the apparatus according to the invention is particularly adapted for use with continuous spinning machines of the type, best shown in FIG. 2, including a spindle rail 2 supporting a plurality of aligned bobbin supporting driven spindles 37 to each of which a thread 109 is fed from drafting rollers 114, through a fixed guide 119 and a traveller 55 on a ring 50 surrounding the respective spindle. All of the rings 50 are carried by a ring rail 78 which reciprocates axially of the spindles 37 to guide the thread 1% along the bobbins as it is wound thereon by rotation of the spindles 37.
  • the present apparatus comprises, as elements permanently fitted to a continuous spinning machine for operating the thread joiner, upper and lower brackets 1 and 1' (FIG. 2) secured to spindle rails 2 of the spinning machine; a horizontal bar or rail 3 secured to the top of the upper bracket 1, while a horizontal beam 4 with a vertical surface is secured to the bottom part of the lower bracket 1'.
  • the moving part of the apparatus takes the form of a casing 5 to which are fitted upper grooved wheels 6 which have horizontal axes and which run along the horizontal bar 3, and bottom wheels 7 which have vertical axes and which run along the vertical surface of the horizontal beam 4, the co-operation of these elements ensuring that the assembly is vertical.
  • An electric motor 8 is mounted in the casing 5 and is supplied with power by any known moving-contact system.
  • the motor 8 is of the high-speed kind, has one end of its shaft directly coupled to a fan 9 and has the other end of the shaft connected to a speed reduction train 10 from which the main shaft 11 of the apparatus issues. If required, the fan 9 could be driven by a separate motor.
  • Disposed on the main shaft 11 is a double clutch device 12 by means of which either a wheel 13 or a wheel 14 can be rotated selectively, as will be described hereinafter.
  • the wheel 13 drives cylindrical wheels 15, 16 and bevel wheels 17, 18 to drive one grooved wheel 6 and therefore to move the complete apparatus.
  • the wheel 14 drives cylindrical wheels 19, 20 which rotate a shaft 21.
  • the clutch 12 can be operated electrically or mechanically by the thread detector, in a manner to be described hereinafter, the operation being such that for normal operation the wheel 13 is rotated, but when a thread is found to be missing, the wheel 13 is disengaged from the drive shaft 11 and the wheel 14 is engaged and rotated to operate the thread-joining elements.
  • the apparatus can move on closed circuits along one or more machines or can move reciprocatingly along one or more machines; in the case of reciprocating movement a reversing clutch must be provided in association with the wheels 13 to 18 to ensure that the wheel 6 reverses its rotation direction whenever the apparatus reaches the end of its travel.
  • the shaft 21 carries a bevel wheel 22 meshing with another bevel wheel 23 disposed on a vertical shaft 24. Also mounted on the shaft 21 is a cam 25 which operates a joining lever 26 through a roller 27 which is urged into engagement with the cam 25 by a spring 28.
  • the lever 26 has features which will be described hereinafter.
  • the casing 5 provides a rigid mounting for two or more vertical guide supports 29 (FIGS. 1 and 2) to the upper ends of which is fixed a top bearing plate 30 for the vertical shaft 24 and on which is slidably mounted frames 45 and 81 that carry various operating elements of the device.
  • the vertical shaft 24 has near its bottom end a cam 31 (FIGS. 1 and 5) which, through the agency of a roller 32, moves a lever 33 pivotable at 34 and having at its free end a wheel- 35, the periphery of which is covered with an adhesive rubber strip 36 (FIG. 5).
  • a cam 31 (FIGS. 1 and 5) which, through the agency of a roller 32, moves a lever 33 pivotable at 34 and having at its free end a wheel- 35, the periphery of which is covered with an adhesive rubber strip 36 (FIG. 5
  • the cam 31 When the cam 31 is rotated, the rubber strip 36 engages with a spindle 37 having a broken thread.
  • the wheel cannot be moved by the driven spindle 37, since the shaft of the wheel 35 is provided with a ratchet wheel 38 which is associated with a pawl 39 articulated to the lever 33 and which prevents the wheel 35 from being rotated by the spindle 37.
  • the adhesion of the rubber strip 36 to the spindle 37 is such that the spindle 37 is stopped and forced to rotate backwards by means of a quadrant rack 40 rigidly secured to the vertical shaft 24.
  • the quadrant rack 40 is engageable with a gear 41 which meshes with a pinion 42 rigidly secured to the axis of the wheel 35, thus ensuring that the spindle 37 concerned is moved backwards at the required time.
  • the force of the rotating wheel 35 and the adhesion of the rubber strip 36 must be such to overcome the force of the driving belt which then only can slip on its pulley on the spindle.
  • the roller 32 and the lever 33 which carries it are urged into engagement with the cam 31 by a spring 43. If required, the cam 31 can be of the grooved kind. Instead of the disc 35, an equivalent endless strip can be used.
  • the shaft 24 is formed with a lengthwise groove 43 in order to transmit its rotation to the elements to be described hereinafter.
  • Bearings 44 are slidably mounted on the vertical guides 29 and serve as a support for, and are rigidly connected to, the frame 45 which is movable along the guides 29.
  • the frame 45 acts as a bearing support for two aligned bearings 46 in which a rod 47 can move transversely of the spinning machine.
  • Disposed on an end of the rod 47 (FIG. 6) is a device for placing the traveller in the threading position. This device comprises a number of small levers 48 and pins 49 projecting from the bottom of the free ends of the levers 48, the pins 49 engaging with the periphery of a ring 58.
  • the levers 48 are mounted on pivots 51 rigidly secured to a bifurcated member 52, and springs (not shown) tend to maintain the levers 48 in the overlapping position shown in chain lines in FIG. 6. Since the parts under consideration are required to penetrate as far as the rearward part of the ring but could not do so if they were in the inoperative position shown, the bifurcated member 52 is provided on the end of the shaft 47 and has slidingly mounted on it a member 53 which, through the agency of extensions 54, keeps the levers 48 open, rotating the same, as shown in full lines in FIG. 6, into their extended position so that the levers can pass by the sides of the ring 50.
  • the members 47, 52 are moved through the agency of a lever 56 (FIG. 1) pivoted on a pin 57 rigidly secured to the sliding frame 45.
  • the lever 56 is moved by a cam 58 carried by the moving frame 45 and slidably engaged on and rotated by the shaft 24 through the agency of the groove 43 and a key.
  • the cam 58 acts on the lever 56 through the agency of a roller 59 fitted to the lever, the sliding shaft 47 being acted upon through the agency of a rod 60 (FIG. 6) articulated to the member 53.
  • the member 53 abuts two pins 61, 62 secured to the bifurcated member 52 and spaced apart at an appropriate distance to allow the member 53 to slide and, when it abuts the pins 61, 62, to produce a to-and-fro motion of the member 52 to affect the opening and closure of the levers 48.
  • the moving frame 45 carries a U-shaped bracket 63 to facilitate the movement of the sliding shaft 47.
  • Articulated to the ends of the bracket 63 are levers 64, 65 for threading the thread (FIGS. 1, 7 to 10 and 21) inside the traveller 55 which, during the previous step, has been placed in the appropriate position.
  • the levers 64, 65 are operated by a cam 66 (FIG. 1) which, like the cam 58, is disposed on the moving frame 45.
  • the cam 66 is slidably mounted on the shaft 24, for rotation thereby, through the agency of the groove 43 and a matching key.
  • the cam 66 operates rollers 67, 68 (FIG.
  • levers 6?, 7'0 which transmit a rocking motion to the arms 64, 65 through links 71, 72 pivotally connected to the levers 64, 65 through the agency of ball joints or the like so that the levers 64, 65 can pivot in the member 63 at an inclination to the horizontal and vertical planes, the better to perform their task of passing the tensioncd thread through the traveller.
  • the member 63 is rigidly secured to the moving frame 45 and, as can be seen in the drawings, is U-shaped to allow the passage of the traveller hunter and the suction tube.
  • the lever 64 places the thread 109 near the ring 50 below the bottom left-hand part and edge thereof, whereafter the arm 65 catches the thread and keeps it near the right-hand part and next to the edge of the ring 50, so that the tensioncd thread is disposed below the ring 50 and describes an arc and is almost stuck to the edge of the ring 50. Consequently, when the arms 64 and 65 move apart from one another, the thread passes automatically through the inside of the traveller 55, for the thread, having been forced into the position shown, must be inside the traveller 55 as can be seen in FIG. 10. It is inadvisable for very line and delicate threads to have to describe the are just specified. All that is done with such threads is to engage the thread with only one part of the lower part of the edge of the ring 50, whereafter the traveller is moved from one side to the other by a lever like the lever 65 so that the thread is passed through the traveller.
  • the moving frame 45 is always in the working plane of the elements which it supports, that is, in the plane of the ring 50, since the search for the traveller and the passage of the thread are performed on such plane by means of a lever 73 (FIGS. 2 and 13) which carries the frame 45 and which places the same in an appropriate position because it is secured to a shaft 74 carried by a bracket 75 secured to the framework of the apparatus. Rigidly secured to the shaft 74 is a lever 76 having at its end a wheel 77 borne by the ring rail 78 of the continuous spinning machine.
  • the lever 73 has a pawl 79 engaging in a stationary quadrant rack 86 (FIG. 13) to prevent any downward movement.
  • the pawl 79 is disengaged from the rack 8 automatically by any device operated by the thread position detector element, the moving frame 45 being positioned in the plane of operation by the roller 77 bearing against the ring rail 78.
  • a further moving frame 81 (FIGS. 1, 2 and 14) is provided above the moving frame 45 and, like the latter, can slide on the vertical guides 29.
  • the moving frame 81 has vertical bearings 82 (FIG.
  • the frame 81 also carries bearings 83 (FIGS. 1 and 14) which are horizontally aligned and which are disposed transversely of the spinning machine and which guide a suction tube 84 (FIGS. 1, 2, 11 and 12).
  • the suction tube 84 comprises a tube having at one end a bevelled aperture 35 of an inclination adapted to the conicity of the top layers of the thread bobbin 37.
  • the angularly downward directed mouth-piece 85 can have a special shape or can be prolonged downwards with intention to be utilized with ringrails having horizontally arranged anti-balloon rings.
  • the suction tube curves downwards and is connected to an extensible rubber or plastic tube 86 connected to the inlet of the fan 9.
  • the tube 84 To move the suction tube 84 from its inoperative position, disposed in the outside plane of the machine base-plates, to the operative position, in which the suction tube 84 engages with the top layers of thread on the bobbin, the tube 84 must first be moved horizontally until the bobbin is found. To this end, the tube 84 is slid in the horizontal bearings 83 through the agency of a lever 87 which is pivoted at 88 (FIG. 1) and which is moved by the action of a cam 89 acting on a roller 90 carried by the lever 87.
  • the cam 89 is guided by the moving frame 81 and is operated by the vertical shaft 24 on which the cam 89 is mounted, the motion being transmitted through the agency of the groove 43 in the shaft 29 and a key engaged therein.
  • the suction tube 84 is urged towards its inoperative position by a spring 91. Since the plane of operation of the suction tube is always the plane of the top layers of thread on the bobbin, and the top layers always correspond to the maximum position of the ring rail 73, the sliding frame 81 is also borne through the agency of a lever 92 rockably mounted on the shaft 74.
  • the lever 92 (FIG.
  • the moving frame 81 must be able to move in two further ways; a rapid descent, when the suction tube 84 has reached the thread bobbin, in order that the suction tube 84, may descend inside the ring 51 and engage with the conical layer of thread on the bobbin; and a rising movement after the tube 84 has sucked the thread off the bobbin, to take the thread to the joining mechanism.
  • the suction tube 84 has, at a distance from its lower part equal to the required vertical motion, a guide 96 which bears against the end of the lever 92 until, towards the end of its travel, it disengages and descends the required distance, the suction tube 84 then being opposite the cone of thread on the bobbin and being ready to search by suction for the end of the thread.
  • the moving frame 81 has a vertical toothed rack 97 (FIGS. 1 and 15) engaged by a pinion 98 disposed on the top bracket 30.
  • a bevel pinion 99 Rigidly secured to the pinion 98 is a bevel pinion 99 which meshes with another bevel pinion 100 having a vertical axis and being secured to a small cylindrical wheel 161 meshing with a quadrant rack 102 carrying a roller 103 adapted to bear against a cam 104 rigidly secured to the end of the shaft 24.
  • a quadrant rack Connected to the cam 104 is a quadrant rack which, at a desired fraction of a revolution of the shaft 24, engages with the wheel 101 through the agency of intermediate wheels 106, 107.
  • the lever 73 imparts to the lever 92 a rising movement corresponding to the increment of ascent undergone by the ring rail 78 during each oscillation, and the lever 92 transmits the motion to the frame 81, so that the toothed rack 97 moves upwards and therefore moves the gears 98 to 101, forcing the quadrant rack 102 to disengage its roller 163 from the cam 104, so that the rising action thereof which corresponds to the total movement is reduced in the high proportion corresponding to the separation between the roller 103 and the cam 104.
  • the same lifts the moving frame 81, it can do so up to the highest point of travel required, with appropriate intermediate stops as arranged by the system of operation of the cam 104.
  • the moving frame 81 descends by its own weight and with the help of its toothed rack 97, and the transmission just described compels the roller 103 to be in engagement with the descending surface of the cam 104 until the frame 81 engages with the bearing lever 92, that is, when it reaches the level of its plane of operation, whereafter the cam 1tl4 disengages from the roller 103.
  • the quadrant rack 105 and the intermediate wheels 106, 107 serve to raise the suction tube 84 to its initial position after its descent to engage it with the conical surface of the thread on the bobbin.
  • the quadrant rack 10 5 engages with the gear 106 and the same transmits the movement to the gear train 98401, the gear 98 transmitting the movement to the toothed rack 97 which moves upwards, raising the frame 81 and the suction tube 84, the same disengaging from the cone of thread on the bobbin.
  • the moving frame 81 comprises an arm 108 adapted to pass thread 109 (FIGS. 1, 16 and 17) through a thread guide 110.
  • the suction tube 84 trains the thread over an am 111 or the thread guide 110, the suction tube '84 pausing in its rising movement in the corresponding plane to perform such operation, whereafter the lever or arm 108, which is pivoted at 11 2, descends rapidly, with the result that since the lever or arm 108 almost rubs against the thread guide 110, the thread 109 is introduced thereinto.
  • the lever 108 is moved through the agency of a set of levers and cams similar to the elements 87 and 89 hereinbefore described and disposed in the lower part of the moving frame '81 and driven by the same vertical shaft 24.
  • the thread-joining lever 26 which can be seen in FIGS. 1, 18 and 19, has at its top end 113 a nosepiece or extension which is a close fit in the nip of the drafting rollers 114 and 115.
  • the lever end 113 has an inclined rearward edge 116 so that the thread in such part can pass readily to the front part where it must be placed for joining.
  • the lever end 113 has in its upper surface a groove 117 into which the thread penetrates, the thread being clamped, simultaneously as it is severed, by a member 118 when the lever 26 moves rearwardly and abuts an element 119.
  • the severed piece of thread which extends from the gripper 118 to the suction tube 84 is withdrawn thereby, passing into a waste collector.
  • this joining device can comprise an auxiliary suction tube to facilitate removal of the roving from the drafting roller.
  • one sole detecting device can take the form of a lever entering in sliding contact with the threads one after the other during the advancing movement of the carriage or, in the case of delicate threads likely to be damaged by' the pressure of the lever, of a photoelectric cell system or some similar electronic system.
  • detecting devices of broken threads one device for each tensioned thread, having the form of a lever permanently in rolling or sliding contact with one individual thread.
  • the lever 121 has one sliding shoe 121s covering a little more than the distance between two threads 109, but less than the distance between three threads.
  • the lever 121 reaches a drawing station where the thread has broken, it ceases to have the broken thread bearing upon it and drops forwards slightly to a position 121b, this movement being convented into the emergence of an electrical contact member 122 (FIG. 3) which bears against the bottom part of the spindle, the apparatus being placed exactly in the position necessary [for joining the thread.
  • the member 122 also simul taneously operates an electric brake (not shown) and the clutch 12 to disconnect the drive to the wheels 6 and connect the drive to the thread joining system of the carriage.
  • the shaft 21 of the joining device comprises a cam 123 which, when it is moved, moves the lever 121 backwards into the position 121a shown in FIG. 3, to ensure that the lever 121 does not cause any disturbance while joining is being performed.
  • the cam 123 allows the lever 121 to return to its initial position, whereafter, if the lever 121 engages with the thread but does not pass to the position 121b, the clutch 12 is changed over and the ordinary mechanism started and the electric brake is released. If because of the absence of thread the lever 121 can move to position 121b, however, the clutch 12 remains in the same position and the joining cycle just outlined is repeated.
  • the machine starts to operate and leaves the thread to be joined if it has not been joined in the first, second, third, and so on, attempt, the number of attempts being optional or being selectable by the user by means of a ratchet wheel 124 adapted to be operated by a pawl 125 secured to the cam 123 and which at each revolution causes a tooth of the wheel 124 retained by the counterpawl 126 to jump, the counterpawl 126 preventing the ratchet wheel from rotating in the opposite direction to that in which it is driven by a r spring 127.
  • a member 128 can be placed on the ratchet wheel 124, in accordance with the number of repetitions required, and operates at the required moment to prevent the lever 121 dropping to restart the joining cycle, the lever 121 staying at the same height as if thread were present until the apparatus starts and the lever 121 can be borne by the nearest thread.
  • the counterpawl 126 is then released for an instant, the ratchet wheel being returned to its initial position by the spring 127. This instantaneous release of the ratchet wheel occurs whenever the apparatus has been stopped to perform a joining operation.
  • FIG. 28 discloses only one moving frame or platform 45.
  • This system is an improvement because the Whole apparatus is less complicated owing to the suppression of the second higher frame, and because the raising means are simplified, but the system is less versatile than the syswith two or more platforms as described before, owing to the fact that if the system is operating with two vertically moving platforms there is the possibility of simul taneous movements, resulting in a greater working speed.
  • FIG. 28 differs from that shown in FIG. 1 in that the suction tube 84 with its mouthpiece together with its moving means, lever 87, cam 89 etc., are mounted on the platform 45, together with the cams 58 and 66 and its rolls and levers for the traveller hunting means, and thereby form a much more simplified structure where the same levers or arms 64 and 65 can be utilized for threading the thread into the thread guide (FIGS. 16, 17) instead of the lever 108 mounted on the platform 81,
  • the exact position of the platform 45 is always obtained by means of the lever 76 fixed on one end of the shaft 74 and bearing against the upper surface of the ring rail (FIG. 28).
  • a lever 137 (FIG. 29) is fixed on the shaft 74 and carries a lateral rod 139 which, during the oscillating movement of the ring rail, is urged against a piece 140 on the lever 138 and urging the same to follow the ascending movement of the ring rail.
  • said lever 138 cannot turn downwards to the initial position of the ring rail if the lever 137 is moving downwards, owing to the pawl 79 co-operating with the ratchet wheel 80.
  • the lever 138 rotating freely about the shaft 74, is connected pivotally through the pivot 138a to an angular lever 136a, b which lever has on its part 136a laterally fixed thereto a rod 141 urging against a piece 142 mounted on the lever 92 which, as mentioned before, is acting under the platform 45 which is receiving by such means the increased ascending movements of the ring rail.
  • the part 136b of the angular lever is urged against the ring 143 which has a recess 144 in its periphery, this ring being fixed on the bushing 132, and means while the levers 92 and 138 can rotate about said bushing 132.
  • On this bushing 132 is fixed another lever 133 which is actuated by the cam 145 (FIG. 28) mounted on the lower end of the vertical shaft 24, and the lever 133 receives its movement by means of the levers 146, 147 through universal ball joints.
  • the cam 145 rotated by the shaft 24, is then really giving the ascending and descending movements to the platform 45 co-operating with the lever 76 moved by the ring rail.
  • the cam 145 acts upon the lever 133 which rotates slightly the bushing 132 in such a manner that the fixed ring 143 makes a rotating movement to oppose its recess 144 to the lever end 136b, and then the rod 141 on the lever end 136a moves downwards together with the piece 142 and the lever 92, which movements determine the descending movement of the mouthpiece of the suction tube into the inner part of the ring 50 (FIG. 10).
  • the cam 145 in its further rotating movement causes an inverted movement of the lever 133 so that the ring 143 turns to its initial position and the lever 136a, b turns to its first position rotating about its pivot 138a, thereby raising the rod 141 which lifts the piece 142 and its lever 92 to its initial position, increased eventually by a small distance corresponding to the increased height of the ring rail by means of the pawl 79 and the ratchet wheel 80.
  • the cam 145 moves the lever 133 together with the bushing 132 on which is fixed the arm 135, with another rod 148 urging against the other end of the piece 142 of the same lever 92.
  • the different heights of the platform 45 can be obtained for fulfilling its functions, for example, the threading of the thread in the gripper, or for threading the thread in the thread guiding device.
  • the guides 3 and 4 are connected to the machine ends through the agency of curved guides which complete the closed movement circuit. If the apparatus is to join broken threads on a number of machines, it can be suspended from equivalent guides placed at a suitable height to allow staff to move around freely between machines. In any case the apparatus can move either in a closed circuit or in both directions, to deal with one or two or more machines.
  • the drive of the electric motor 8, which is supplied through appropriate sliding contacts, is transmitted to the groove wheel 6 which bears against the guide 3 determining the movement of the apparatus in front of the machine bobbins, the lever 121 bearing permanently against that part of the threads 109 which extend from the front rollers as far as the thread guide 110.
  • the wheel 35 having the rubber rim 36 moves towards the spindle, the rim 36 engaging therewith and stopping the same, as can be seen in FIG. 23.
  • the member 53 of the traveller placing mechanism then advances, opens the levers 48 by way of its extensions 54 and, upon engaging with the pins 61, moves the members 52 and 47 forward until the pins 49 pass beyond the traveller guide ring 50.
  • the suction tube 84 is moved by the action of the associated levers and cams 89, 8'7 and when it reaches the end of its travel, descends, because of the absence of bearing support by the lever 92, on to its bottom guide 96 until the lever 92 engages with or abuts the corresponding part of the suction tube 84.
  • the purpose of this descent is for the member on the end of the suction tube 84 to pass through the traveller guide ring and for its end 85 to be placed near the conical surface of the final layers of thread on the bobbin (FIG.
  • the edge of the tube end 85 can have bristles or the like which rub on the bobbin surface to facilitate disengagement of the broken end.
  • the member 53 returns so that first the small levers 48 close, then, as the return movement of the member 53 continues, the same abuts the pins 62 in the member 52 and causes the member 48 to return with the member 53.
  • the pins 49 at the end of the levers 48 therefore bear against the ring 50, travelling over the entire edge thereof and taking with them the traveller 55, wherever it may be, towards the front part of the ring 50.
  • the suction tube then performs a rapid return movement to its original position (lever 87, cam 89), so that when the quadrant rack 105 ceases to operate, that is, the toothed rack and the moving frame 81 tend to descend, the guide 96 abuts the lever 92 and remains in the initial position.
  • the moving frame 81 is raised, this time by the cam 104 which acts upon the roller 103 secured to the quadrant rack 102 to raise the toothed rack rigidly secured thereto.
  • the same is arranged to have sufficient travel to raise the toothed rack from the lowest to the highest positions of its travel. If, for instance, the ring rail 78 is in its central position, the moving frame 81 and the toothed rack 97 are maintained at this level by the lever 92.
  • the toothed rack 102 therefore has its rollers 103 at a distance from the cam 104 and is not operated thereby until in its travel it reaches the position corresponding to such height, thereafter Continuing its ordinary movement. The same events occur during the descent but in the reverse order.
  • An automatic thread joiner for use with continuous spinning machines of the type including a spindle rail supporting a plurality of aligned bobbin supporting driven spindles for each of which a thread is formed of roving issuing from drafting rollers and fed through a fixed guide and a traveller on a ring surrounding the respective spindle, the rings for all of the spindles being carried by a ring rail reciprocable axially of the spindles so that the travellers will guide the thread along the bobbins as it is wound thereon by rotation of the spindles; said thread joiner comprising a carriage movable along the spindle rail of a spinning machine; a detector device movably mounted on said carriage and including a shoe for slidably engaging the threads between the drafting rollers and fixedguides of the spinning machine; thread joining mechanism including means on said carriage for braking and stopping the spindle corresponding to a broken thread, support means vertically movable on said carriage, an extractor on said support means and having a mouthpiece for extracting the
  • said detector device comprises a lever terminating in a shoe of a length greater than the distance between two threads and less than the distance between three threads, said lever being pivotally mounted so that the shoe normally rests on the threads and retains the clutch means connected to the carriage but upon dropping due to a broken thread, connects said clutch means with said thread joining mechanism.
  • An automatic thread joiner comprising an abutment engageable by said detector lever and terminating in an electrical contact member adapted to be connected to the bottom part of the spindles and transversely movable relatively to the spinning machine between a withdrawn position, which it takes up during movement of the carriage, and a position for coupling with the spindle on which the thread has broken, in order that the thread joining mechanism may be correctly placed before joining starts.
  • An automatic thread joiner comprising a raising device which raises said detector lever above the normal operative position to rest the lever again on top of the joined thread and to restart the movement of the carriage.
  • An automatic thread joiner comprising a joining cycle counter which permits repetitions of the joining cycle in cases of failure to effect joints but connects the mechanism for shifting the thread joiner after a desired number of unsuccessful joining attempts have been made.
  • An automatic thread joiner according to claim 1, wherein said carriage comprises a casing enclosing said drive means, and an upper platform maintained at a fixed distance vertically above the casing by means of at least one column, and said support means comprises at least one intermediate platform between the casing and the upper fixed platform and being vertically movable and slidably guided along said column.
  • said ring rail responsive means includes a raising mechanism which responds to the maximum height of the ring rail at the moment of thread breakage to place the thread joining mechanism at the height of the final layers of thread on the bobbin and of the traveller guide ring, and additional height increasing mechanism, which responds to the oscillating movement of the ring rail during the time of the threading process of the joining mechamsm.
  • said raising mechanism includes a releasable retaining device which normally maintains the joining mechanism in the highest position reached by the ring rail in each rising movement, and means for releasing said retaining device, such means being operated upon actuation of the joining mechanism to bring said mechanism to the instantaneous level of working when there is a breakage, or to return them to the lower starting position after a change over.
  • said traveller hunting means comprises a bifurcated member adapted to be moved transversely of the machine between a withdrawn position and a position in which its arms straddle the traveller guide ring of the station where the breakage has occurred, the arms having two articulated search arms resiliently urged so that their ends bear in overlapping relationship against the periphery of said ring and pass thereover when the bifurcated member returns and moving the traveller to threading position.
  • An automatic thread joiner comprising a second bifurcated member movable relative to said first mentioned bifurcated member and having front extensions which open the traveller search arms as it moves forward.
  • An automatic thread joiner according to claim 1, wherein said extractor comprises a suction tube connected to the entry of an air impeller and adapted to be moved transversely of the machine for engagement of the mouthpiece with the last turns of thread on the bobbin, and brushing bristles on the mouthpiece for engaging the end of the broken thread.
  • spindle braking means comprises a drivable element which is displaceable to be engaged with the lower part of the spindle when a thread breakage has occurred to stop such spindle, and means for rotating said element backwards overcoming the rotating force of the spindle to facilitate unwinding of a predetermined length of thread sucked in by the suction tube.
  • said traveller threading means comprises two threading arms articulated to a bracket disposed one on each side of the traveller-hunting bifurcated member and rocking in two planes which are inclined relatively to the ring rail, and operating mechanism for moving said threading arms successively, first the one arm, which moves the thread stretched between the bobbin and said extractor towards one side of the traveller, and then the other arm, which moves the thread stretched between the first arm and the extractor towards the opposite side of the traveller, the thread engaging with part of the periphery of the traveller guide ring below the flange edge of the ring so as to be introduced into the traveller.
  • said support means comprises a vertically movable bracket which supports said suction tube to be moved transversely, whereby the moving means for said support means disposes said suction tube at the approximate height of the drafting rollers of the machine.
  • said fixed guide threading means comprises an articulated arm having a trajectory which intersects the thread stretched between the suction tube and the traveller and resting upon the thread guide opposite the aperture thereof, and means for imparting to said arm a descending movement between a position above the thread and a lower position in which it forces the thread to describe a convolution around the end of the thread guide.
  • said gripper device comprises a gripper having a nosepiece movable transversely of the machine between a withdrawn position, disposed below the highest position of the suction tube, and a position in which its nosepiece is introduced between the drafting rollers, carrying the thread with it and placing the same in engagement with the roving issuing from the drafting rollers to join the thread to the roving, such gripper having opening means which are operated when it engages with the rollers, and means for cutting the excess length of thread which is drawn into the suction tube.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US201495A 1961-06-14 1962-06-11 Automatic thread joiner for continuous spinning machines Expired - Lifetime US3128590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2322063A GB1022983A (en) 1961-06-14 1963-06-11 Automatic thread joiner for continuous ring-spinning machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2152861A GB908507A (en) 1961-06-14 1961-06-14 Automatic thread joiner for continuous ring-spinning machines

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US3128590A true US3128590A (en) 1964-04-14

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US (1) US3128590A (sv)
BE (1) BE618927A (sv)
CH (1) CH398397A (sv)
DE (1) DE1302762B (sv)
DK (1) DK116644B (sv)
ES (1) ES278255A1 (sv)
FR (1) FR1416314A (sv)
GB (1) GB908507A (sv)
IT (1) IT669872A (sv)
NL (2) NL279649A (sv)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3374616A (en) * 1965-09-30 1968-03-26 Celanese Corp Doffing machine
US3398522A (en) * 1967-05-08 1968-08-27 Leesona Corp Textile machine
US3398521A (en) * 1967-05-08 1968-08-27 Leesona Corp Textile machine
US3411281A (en) * 1966-01-17 1968-11-19 Guido Carlo Device for indicating broken threads in spinning machines
US3438187A (en) * 1966-01-03 1969-04-15 Roberto Escursell Prat Method of automatically threading yarn from a bobbin into the ring traveller of a continuous ring spinning machine and the like
US3445997A (en) * 1961-06-14 1969-05-27 Roberto Escursell Prat Automatic thread joiner and continuous spinning machines
US3478504A (en) * 1967-01-17 1969-11-18 Palitex Project Co Gmbh Method of and apparatus for remedying a thread break
US3540200A (en) * 1967-08-19 1970-11-17 Toyo Boseki Automatic yarn piecing apparatus for ring spinning frame or the like
US3546870A (en) * 1967-02-13 1970-12-15 Barber Colman Co Method and machine for automatically relocating spinning frame travelers
US3628320A (en) * 1969-08-01 1971-12-21 Maremont Corp Method and apparatus for traveler threading
US3654756A (en) * 1967-05-17 1972-04-11 Boris Ivanovich Yasjukevich Appliance for automatic thread piecing in spinning or spinning and twisting machines
US3664109A (en) * 1969-09-24 1972-05-23 Roberto Escursell Prat Method and means for yarn retrieval
US3688486A (en) * 1970-08-19 1972-09-05 Leesona Corp Textile machine
US3695017A (en) * 1969-03-15 1972-10-03 Daiwa Spinning Co Ltd Automatic yarn piecing apparatus for spindleless spinning machine
FR2130638A1 (sv) * 1971-03-25 1972-11-03 Schubert & Salzer Maschinen
US3807155A (en) * 1969-02-28 1974-04-30 Kanebo Ltd Method and apparatus for joining yarns
US3905186A (en) * 1973-10-23 1975-09-16 Saco Lowell Corp Method and means for control of end-down servicing
US3911657A (en) * 1969-08-04 1975-10-14 Leesona Corp Textile machine
US3981128A (en) * 1974-07-29 1976-09-21 Palitex Project-Company G.M.B.H. Mechanism for transporting a yarn end in a textile machine
US4030281A (en) * 1974-09-03 1977-06-21 Heberlein Hispano S.A. Surveying device
US4083171A (en) * 1975-09-12 1978-04-11 Schubert & Salzer Method and apparatus for eliminating an abnormality in a thread to be wound onto the bobbin of an open-end spinning device
US4155215A (en) * 1977-03-28 1979-05-22 Zinser Textilmaschinen Gmbh Automatic threading device for filament winding machines
US4165601A (en) * 1977-03-10 1979-08-28 Zinser Textilmaschinen Gmbh Control system for yarn-tying device of thread-winding machine
DE3932666C2 (de) * 1989-03-22 2000-12-28 Rieter Ag Maschf Verfahren zum Betrieb einer Spinnmaschine, insbesondere Ringspinnmaschine, sowie Bedienroboter zur Durchführung des Verfahrens
EP3521491A1 (en) * 2018-01-31 2019-08-07 Maschinenfabrik Rieter AG Device for handling a yarn end at a spinning unit of a ring spinning machine, a method for handling the yarn end and a ring spinning machine
CN115609968A (zh) * 2022-12-16 2023-01-17 太原理工大学 多束纤维螺旋环向一体缠绕制作高压储氢容器的设备
CN117403196A (zh) * 2023-12-15 2024-01-16 安泰爱科科技有限公司 一种磁体表面溅射成膜装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1785236C2 (de) * 1968-08-30 1983-01-13 Kanebo K.K., Tokyo Wartungswagen an Ringspinnmaschinen zum Andrehen gerissener Fäden
FR2105082A1 (en) * 1970-09-23 1972-04-28 Escursell Prat Roberto Spinning frame - has carriage carrying piecing up device moving along spinning units
DE2454721C2 (de) * 1974-11-19 1986-10-23 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Verfahren und Einrichtung zum Betrieb eines Ansetzwagens
DE2454900B2 (de) * 1974-11-20 1981-06-04 Fritz 7347 Bad Überkingen Stahlecker Offenend-Spinnmaschine mit wenigstens einer verfahrbaren Wartungseinrichtung
FR2446792A1 (fr) * 1979-01-18 1980-08-14 Alsacienne Constr Meca Dispositif de changement automatique de bobine sur machine textile equipee d'un systeme de bobinage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE553305A (sv) * 1956-01-10
GB294148A (en) * 1927-07-18 1929-10-16 Eizaburo Negishi An automatic piecing device for the self-acting mule
US2449742A (en) * 1944-11-30 1948-09-21 British Cotton Ind Res Assoc Method and apparatus for doffing spinning frames and the like
US2786324A (en) * 1953-11-16 1957-03-26 Universal Winding Co Two-for-one stop motion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB294148A (en) * 1927-07-18 1929-10-16 Eizaburo Negishi An automatic piecing device for the self-acting mule
US2449742A (en) * 1944-11-30 1948-09-21 British Cotton Ind Res Assoc Method and apparatus for doffing spinning frames and the like
US2786324A (en) * 1953-11-16 1957-03-26 Universal Winding Co Two-for-one stop motion
BE553305A (sv) * 1956-01-10

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445997A (en) * 1961-06-14 1969-05-27 Roberto Escursell Prat Automatic thread joiner and continuous spinning machines
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3374616A (en) * 1965-09-30 1968-03-26 Celanese Corp Doffing machine
US3438187A (en) * 1966-01-03 1969-04-15 Roberto Escursell Prat Method of automatically threading yarn from a bobbin into the ring traveller of a continuous ring spinning machine and the like
US3411281A (en) * 1966-01-17 1968-11-19 Guido Carlo Device for indicating broken threads in spinning machines
US3478504A (en) * 1967-01-17 1969-11-18 Palitex Project Co Gmbh Method of and apparatus for remedying a thread break
US3546870A (en) * 1967-02-13 1970-12-15 Barber Colman Co Method and machine for automatically relocating spinning frame travelers
US3398522A (en) * 1967-05-08 1968-08-27 Leesona Corp Textile machine
US3398521A (en) * 1967-05-08 1968-08-27 Leesona Corp Textile machine
US3654756A (en) * 1967-05-17 1972-04-11 Boris Ivanovich Yasjukevich Appliance for automatic thread piecing in spinning or spinning and twisting machines
US3540200A (en) * 1967-08-19 1970-11-17 Toyo Boseki Automatic yarn piecing apparatus for ring spinning frame or the like
US3807155A (en) * 1969-02-28 1974-04-30 Kanebo Ltd Method and apparatus for joining yarns
US3695017A (en) * 1969-03-15 1972-10-03 Daiwa Spinning Co Ltd Automatic yarn piecing apparatus for spindleless spinning machine
US3628320A (en) * 1969-08-01 1971-12-21 Maremont Corp Method and apparatus for traveler threading
US3911657A (en) * 1969-08-04 1975-10-14 Leesona Corp Textile machine
US3664109A (en) * 1969-09-24 1972-05-23 Roberto Escursell Prat Method and means for yarn retrieval
US3688486A (en) * 1970-08-19 1972-09-05 Leesona Corp Textile machine
FR2130638A1 (sv) * 1971-03-25 1972-11-03 Schubert & Salzer Maschinen
US3905186A (en) * 1973-10-23 1975-09-16 Saco Lowell Corp Method and means for control of end-down servicing
US3981128A (en) * 1974-07-29 1976-09-21 Palitex Project-Company G.M.B.H. Mechanism for transporting a yarn end in a textile machine
US4030281A (en) * 1974-09-03 1977-06-21 Heberlein Hispano S.A. Surveying device
US4083171A (en) * 1975-09-12 1978-04-11 Schubert & Salzer Method and apparatus for eliminating an abnormality in a thread to be wound onto the bobbin of an open-end spinning device
US4165601A (en) * 1977-03-10 1979-08-28 Zinser Textilmaschinen Gmbh Control system for yarn-tying device of thread-winding machine
US4155215A (en) * 1977-03-28 1979-05-22 Zinser Textilmaschinen Gmbh Automatic threading device for filament winding machines
DE3932666C2 (de) * 1989-03-22 2000-12-28 Rieter Ag Maschf Verfahren zum Betrieb einer Spinnmaschine, insbesondere Ringspinnmaschine, sowie Bedienroboter zur Durchführung des Verfahrens
EP3521491A1 (en) * 2018-01-31 2019-08-07 Maschinenfabrik Rieter AG Device for handling a yarn end at a spinning unit of a ring spinning machine, a method for handling the yarn end and a ring spinning machine
CN115609968A (zh) * 2022-12-16 2023-01-17 太原理工大学 多束纤维螺旋环向一体缠绕制作高压储氢容器的设备
CN117403196A (zh) * 2023-12-15 2024-01-16 安泰爱科科技有限公司 一种磁体表面溅射成膜装置
CN117403196B (zh) * 2023-12-15 2024-04-26 安泰爱科科技有限公司 一种磁体表面溅射成膜装置

Also Published As

Publication number Publication date
FR1416314A (fr) 1965-11-05
CH398397A (it) 1966-03-15
DK116644B (da) 1970-01-26
NL127198C (sv) 1969-09-15
ES278255A1 (es) 1962-12-16
IT669872A (sv)
DE1302762B (sv)
NL279649A (sv) 1964-11-25
BE618927A (sv) 1962-10-01
GB908507A (en) 1962-10-17

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