Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
  • D01H1/14—Details
  • D01H1/38—Arrangements for winding reserve lengths of yarn on take-up packages or spindles, e.g. transfer tails
  • D01H1/385—Removing waste reserve lengths from spindles
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H11/00—Arrangements for confining or removing dust, fly or the like
  • D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices
  • D01H11/006—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices travelling along the machines

Definitions

• the invention relates to a method for whirl cleaning in ring spinning machines according to the preamble of claim 1 and to an apparatus for carrying out the method.
• DE-PS 12 67 154 has a device for removing the thread turns from whorls, which consists of a sawtooth type scratching device and a suction device.
• the device moves together with the bobbin pulling device along the tensioning machine and removes the thread turns on the spindles when moving past.
• the entire device is attached to a running rail attached along the ring spinning machine, while it is supported with a further wheel against a guide rail.
• the sawtooth-like scratching device is flexibly mounted and thus elastically engages in the ring grooves to be cleaned on the spindles. This causes a not inconsiderable wear in the area of these ring grooves.
• a cleaning device of the type mentioned at the outset is the subject of EP-A 0 251 397.
• This device can also be moved along rails which are attached to the floor below the spinning machine.
• This device has a head consisting of a knife, a suction nozzle and a rotating round brush. The movement of the device along the spinning machine is carried out by a rotating Maltese reuz that is engaged
• SPARE BLADE stand with pins arranged below the spindle bench, each aligned with the spindle axis.
• the head executes a reciprocating transverse movement perpendicular to the longitudinal movement, such that the head approaches a spindle when the device approaches a spindle and moves away from the spindle when the device continues.
• the cleaning effect is insufficient, since the cleaning head is in engagement with the annular groove of a spindle only for a relatively short time. If the engagement time is increased, however, there is the disadvantage that the cleaning device can only be moved along the spindle bank at very low speed.
• the task arises to improve the process of whirl cleaning in such a way that a cleaning head is in engagement with the ring groove of the spindle for a sufficiently long time without the travel speed of the device along the spindle bench being reduced.
• each head is sufficiently long in engagement with the annular groove of a spindle.
• the belt is moved synchronously to the driving speed of the device, the run of the belt facing the spindles moving counter to this feed movement.
• the positioning device preferably consists of a further belt which carries pins, the mutual spacing of which corresponds to the spacing of the spindles.
• the positioning device preferably consists of a rail provided with bores, which runs along the spindle bank and has the recesses, the spacing of which is equal to the mutual spacing of the spindles.
• a wheel that supports the other belt is rotatably connected to a wheel of one belt.
• cop pulling devices which consist of a carriage which can be moved along the spindle bench and which carries an endless circulating chain.
• this can be inclined at an angle to the spindle bench and can carry gripping devices that grip the heads, which are pulled off the spindles when the carriage is moving and the chain rotates.
• the positioning between the carriage and the spindles inevitably results from the gripping devices. This is not comparable to the problem of cleaning.
• the cop pulling device has a horizontally running endless chain which carries vertically running rails in which size devices are guided. These gripping devices are guided along an inclined plane. The positioning between the movable carriage and the spindles also results from the interaction between the gripping devices and the cops. Preferred exemplary embodiments are explained in more detail below with reference to the drawings. Show it:
• Figure 1 a plan view of a first embodiment of the device
• F gur 2 a cross section through the first embodiment of the device
• Figure 3 a longitudinal section in this embodiment
• FIG. 4 a partial cross section to illustrate the movement of the carrier
• Figure 5 is a plan view of the belt carrying the heads
• F gur 6 a top view of a second embodiment of the device
• Figure 7 shows a cross section through this device;
• Figure 8 shows a longitudinal section through this device;
• Figure 9 a partial view of the guide rollers with inductive buttons;
• Figure 10 is a view of the index pin with drive
• Figure 11 is a view of the carrier and its drive in the second embodiment
• F gur 1 a plan view in a third embodiment
• FIG. 13 a cross section through the third embodiment
• the device has a housing 1 which can be moved via rollers 2 along a rail 3 which is placed on the floor v.
• Horizontal rails 4 are arranged on the two side walls of the housing 1 and support a frame 5.
• This frame has a horizontal crossbar 6.
• This cross bar 6 is provided with two vertically running bores 7, through which two bolts 8A, 8B of a support 9 are guided.
• the two screw bolts 8A, 8B connect two horizontal support beams 10, 11 to one another.
• the bolts 8A, 8B are each surrounded by a helical spring 12A, 12B, which are supported on the crossbeam 6 at the bottom.
• a nut 13A, 13B is supported on the upper ends of the helical springs 12A, 12B, so that the springs 12A, 12B support the support 9 in a vertical direction with respect to the frame 5. This is illustrated by the vertical double arrow in FIG. 4.
• a swivel motor 14 is fastened to the housing 1, which is in engagement with the frame 5 and which can thus move the frame 5 in the horizontal direction along the rails 4.
• the upper support beam 9 supports two wheels 15A, 15B with a vertical axis of rotation, a toothed belt 16 is tensioned over these wheels 15A, 15B.
• This toothed belt has heads 17 on its outer circumference, each of which consists of a three corner-shaped cutting knife 18 and a suction nozzle 19.
• the toothed belt 16 is each provided with a slot running to the inside of the toothed belt 16.
• the mutual distance between two neighboring beard heads 17 corresponds to the distance between two adjacent spindles 20 of the ring spinning machine. These are stored in the spindle bank 21.
• the lower support beam 11 also supports two wheels 22A, 22B, the axes of which run parallel to the axes of the wheels 15A, 15B, a further toothed belt 23 runs over these wheels 22A, 22B and carries pins 24 on its outside.
• the distance between adjacent pins 24 corresponds to the distance between adjacent spindles 20.
• a rail 25 is fastened, which runs horizontally and has a recess 26 in the form of a bore at the level of a spindle 20.
• the housing 1 supports a further swivel motor 27 which is in engagement with an index pin 28 mounted on the housing 1.
• the index pin 28 can be moved at right angles to the rail 25 via the motor 27.
• a third swivel motor 29 is fastened to the housing 1 and is in engagement with an adjustment plate 30 which is mounted horizontally displaceably at the level of the toothed belt 23.
• the wheels 15A and 22A and the wheels 15B and 22B which each have the same diameter, are connected to one another in a rotationally fixed manner, for example via a coupling or a flexible shaft.
• a suction channel 31 is arranged on the carrier 9 and communicates with the respective nozzles 19. This suction channel 31 opens into a vertically extending suction nozzle 32.
• the device Before the cleaning begins, the device is located at one end of the spindle bench.
• the frame 5 and thus the support 9 are at a distance from the rail 25, as shown in broken lines in Figures 1 and 2.
• the pins 24 are thus disengaged from the recesses 26 of the rail 25 and the heads 17 are at a distance from the spindles 20.
• a part of the pins 24 lie against the adjusting plate 30.
• the index bolt 28 is also pivoted in the direction of the housing interior. If the device now receives the command to clean the spindle, one of the rollers 2 is activated by an electric motor, so that the device begins to move along the spindle bench 21.
• a button 33 counts the number of recesses 26 that have been passed.
• no spindles 20 are present in the first eight recesses. If the button 33 has gripped the tenth recess 26, the device is stopped and the swivel motor 27 is actuated, so that the index pin 28 engages in the recess 26 on the left in FIG. Then the swivel motor 29 is actuated, which moves the adjusting plate 30 to the left and thus also the toothed belt 23, the one facing the adjusting plate 30 Pins 24 are in contact with this plate. This movement is carried out until the rail
• the swivel drive 14 is actuated, which moves the frame 5 and thus the carrier 9 in the direction of the spindle bench 21 until the pins 24, which are rounded on their front side, come into engagement with the recesses 26.
• the carrier 9 is adjusted both in the longitudinal direction and in height with respect to the rail 25, so that the knives 18 are exactly at the level of the annular groove 34 of the spindles 20.
• the swivel drive 27 then moves the index pin 28 back " in the direction of the housing so that it disengages from its recess 26.
• the drive for the rollers 2 is now put into operation again and the device is moved along the spindle bank 21, the toothed belt 23 rolling with its pins 24 along the rail 25.
• the knives 18 are always in exact engagement with the ring grooves 34. If the rollers 2 and / or the rail 3 are worn, or If the rail 3 follows unevenness in the floor, then an exact engagement of the knives 18 in the annular grooves 34 is always ensured by the mounting of the support 9 on the frame 5 and by the engagement of the pins 24 in the recesses 26.
• Each head 17 stands for a long time in engagement with a spindle 20, which ensures that the spindle foot is cleaned properly.
• the threads separated in this process are suctioned off via the nozzles 19, 31 and the suction channel 32 Since the swivel drive 14 acts on the frame 5 via a spring 35, the carrier 6 is guided in a horizontally resilient manner against the rail 25 and the spindle 20.
• the housing 101 has vertical guide rails 104 on its rear wall, on which the frame 105 is guided such that it can be adjusted vertically.
• This frame is divided into two parts and consists of the vertically guided frame part 135 and the horizontally extending frame part 136.
• the frame part 136 is connected to the frame part 135 via a vertically extending bolt 137.
• Rigidly connected to the frame part 136 are two fork-shaped arms 136A, 136B, which extend in the direction of the rail 125.
• the frame part 136 carries, via springs 138, a guide rail 139 which runs horizontally and at right angles to the rail 125 and which slidably supports the carrier 109.
• the carrier 109 has an upper carrier beam 110 and a lower carrier beam 111, which are rigidly connected to one another by means of posts.
• the upper support beam 110 supports the wheels 115A, 115B, while the lower support beam 111 supports the wheels 122A, 122B.
• the lower support beam 111 additionally supports a tensioning wheel 140.
• a toothed belt 116 is guided over the wheels 115 and carries the heads -117, while the toothed belt 123 with the pins 124 is guided over the wheels 122, 140.
• a swivel motor 114 is fastened to the frame 135, which is articulated to the carrier 109 and is capable of displacing the carrier 109 in the direction of the rail 125 and away from it. Furthermore, a swivel motor 127 is arranged on the frame 105, which is capable of displacing the index pin 128, which is also mounted on the frame 135.
• An adjuster disk 141 which carries four rollers 142 in a cross-like arrangement, is connected in a rotationally fixed manner to the tensioning wheel 140. Furthermore, a wedge-shaped stop 143 is provided on the frame part 136.
• the fork-shaped arms 136A, 136B each carry two guide rollers 144 and an inductive switch 133 at their ends.
• the mode of operation is as follows:
• the carrier 109 In the starting position, the carrier 109 assumes a position in which it is at a distance from the rail 125, that is to say shifted to the right in accordance with FIG. In this position of the carrier 109, the wedge-shaped stop 143 engages between two rollers 142, with which the pins 124 are positioned exactly with respect to the index bolt 128. If the start command is generated by the central control, the device moves along the floor rails until the inductive buttons 133 each have a recess 126.
• the device is stopped and the swivel motor 127 is actuated so that the index pin 128 engages in a recess 126 and thus positions the frame 105 in the longitudinal direction of the rail 125, since the guide rollers 144 are in constant engagement with the rail 125 stand, the frame 105 is also positioned relative to the height of the rail 125.
• This adjustability is given by the displaceability along the rails 104 and the pivotability around the bolt 137.
• the welding drive 114 is actuated, which displaces the carrier 109 in the direction of the rail 125 until the pins 124, which face the rail 125, engage in the recesses 126.
• the carrier 109 can now be positioned exactly relative to the ring grooves of the spindles 20. Once this has taken place, the swivel motor 127 pulls in the index pin 128, whereupon the device begins its cleaning work as described in the first exemplary embodiment.
• the pushbuttons 133 exactly detect the recesses 126 and the device is stopped exactly when such recesses are detected. In this way, the index bolt can be dispensed with.
• the frame 105 is connected to the housing 101 via two rubber rotary bearings 145 with a horizontal axis. On its underside, the frame 105 rests on a support surface of the housing. This frame 105 supports the carrier 109 in a horizontally displaceable manner.
• the support for the carrier 109 consists of a slide guide which runs at right angles to the rail 125.
• the swivel motor 114 for displacing the carrier 109 is arranged on the frame 105 and displaces the carrier f09 via a spring 35.
• a further tensioning wheel 146 for the belt 116 is provided in addition to the tensioning wheel 140 for the belt 23, a further tensioning wheel 146 for the belt 116 is provided.
• the wedge-shaped stop 143 is provided on the frame 105.
• the adjusting disk 141 which carries the rollers 142, is connected to the tensioning wheel 140.
• the carrier 109 carries at its left and right ends two guide rollers 144 with horizontal axes of rotation and one guide roller Le 147 with a vertical axis of rotation. If the carrier 109 is displaced in the direction of the rail 125, then the rollers 144 come to rest on the upper and lower sides and the roller 147 come to rest on the end face of the rail 125.
• the method of operation is as follows: the device moves from its waiting position to the first spindle 20 and is stopped there by the signals of the pushbuttons 133.
• the carrier 109 is in its position facing away from the rail 125, in which the rollers 142 are in engagement with the keel-shaped stop 143. Since the device is stopped relatively exactly in front of the first spindle, the pins 126, which face the rail 125, are each at the level of a recess 126.
• the swivel drive 114 is then actuated, which drives the carrier 109 in the direction of the Rail 125 shifts until the rollers 144, 147 engage the rail 125.
• the rubber rotary bearings 145 allow a pivoting movement of the carrier 109 relative to the frame 105 about its horizontal axis of rotation as well as relative movements between the frame and carrier in two axes running perpendicular to the rail axis. All pins 124 thus come into engagement with the recesses 126 facing them, so that the carrier 109 and thus the heads 117 are exactly aligned with the spindles 20 and the annular grooves 34. The device then moves continuously as described above along the rail 125. Relative changes in position between the rails 3 and 125 are compensated for by the bearings 145.

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=6419391

Family Applications (1)

Country Status (4)

Families Citing this family (1)

Family Cites Families (4)

• 1990
  • 1990-12-01 DE DE19904038386 patent/DE4038386A1/de active Granted
• 1991
  • 1991-11-28 EP EP19910920886 patent/EP0513293A1/de not_active Withdrawn
  • 1991-11-28 JP JP4500330A patent/JPH05503744A/ja active Pending
  • 1991-11-28 WO PCT/EP1991/002253 patent/WO1992009729A1/de not_active Application Discontinuation

Non-Patent Citations (1)

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