Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
  • D01G27/00—Lap- or sliver-winding devices, e.g. for products of cotton scutchers, jute cards, or worsted gill boxes
  • D01G27/04—Lap- or sliver-winding devices, e.g. for products of cotton scutchers, jute cards, or worsted gill boxes with automatic discharge of lap-roll or the like
• • 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
  • B65H67/0428—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 for cans, boxes and other receptacles
  • B65H67/0434—Transferring material devices between full and empty cans
• • 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 present invention relates to a device for separating a fiber template from mutually slidable staple fibers with two driven roller pairs, which form two clamping lines for the fiber template guided between them.
• the fiber template made of slidable staple fibers means any fiber aggregate extending in the longitudinal direction, regardless of the shape of its cross section, i.e. Both fiber aggregates with a round or centrally symmetrical cross-section (such as the stretch belts of the staple fiber spinning mill) as well as with the elongated cross-section (such as the fiber floss in a lap-forming cotton machine or the fleece of a carding machine of the staple fiber spinning mill) in which the fibers are in any shape (for example as longitudinally oriented individual fibers or flakes), and which essentially maintain their cohesion only through the adhesive forces of the fibers to one another.
• a round or centrally symmetrical cross-section such as the stretch belts of the staple fiber spinning mill
• the elongated cross-section such as the fiber floss in a lap-forming cotton machine or the fleece of a carding machine of the staple fiber spinning mill
• the object of the present invention is therefore to propose a device of the type mentioned at the outset which is simple and reliable in construction, requires little maintenance work and in particular does not require a clutch in the drive system of both pairs of rollers.
• the two pairs of rollers are kinematically coupled by means of a flexible force transmission element, and that the element around the drive roller of the driven roller of each pair of rollers and at least two further stationary guide rollers as well as around two movable rollers connected to form a roller tandem is guided that it forms a loop between the drive rollers and one of the rollers of the tandem and between the two deflection rollers and the other roller of the tandem, so that one of the loops is shortened by a certain amount by shifting the portable roller tandem , while the other becomes longer by the same amount and the result is that one pair of rollers can be rotated relative to the other and the fiber template clamped between the clamping lines is separated by pulling apart.
• the figure shows the inventive device in a schematic, highly simplified illustration, namely applied, the invention according to a preferred embodiment of the Er ⁇ , in a cotton lap forming machine ⁇ the Kärnme- reivormatungsreaes.
• a plurality of staple fiber tapes are pulled out of the supply cans 1 and 2 (which are only shown schematically in the figure and on a greatly reduced scale) and are used with suitable ones, not shown Means doubled, that is, united by side by side stringing together to form a broad fiber template 3.
• a fiber template 3 normally has a width of approximately 30 cm.
• This fiber template 3, which forms a thick cotton wool, is on wound a coil 4. This is done in that the fiber template 3 is attached to the surface of the sleeve 5 in some way at the beginning of the winding process.
• the sleeve 5 is supported on a friction roller 6, which is driven in the means mentioned later, and is thereby frictionally engaged in Rotation offset.
• Such holding means have the shape of two guides 7, 8 which are perpendicular to the friction roller 6 and which guide the sleeve 5 on both edges (only one edge shown).
• other types of holding means for the sleeve 5 can be provided, such as closing arms, which guide the sleeve 5 along a circular path, etc.
• the sleeve 5 is pressed against it by means of a pair (not shown) in order to increase the entrainment by the friction roller 6. It can further be provided that the winding 4 is not driven by frictional engagement through the friction roller 6, but rather that the sleeve 5 itself is driven by means of drive elements (not shown), with suitable control means then ensuring that the rotation speed of the winding 4 is continuously adapted to the increasing diameter of the same.
• Mixed drive types ie those in which the winding 4 is set in rotation by direct drive of the sleeve 5 and combined by a friction roller, can also be used within the scope of this invention.
• rollers 9/10 and 11/12 are provided according to the invention, which form two clamping lines m and n for the fiber template 3 guided between them.
• the lower rollers 9 and 11 of the roller pairs are driven rollers, as will be explained in more detail below, and are rotatably supported about the axes 13 and 14 in a frame of the machine, also not shown, with stationary bearings, not shown.
• the upper rollers 10 and 12 of the roller pairs are designed as pressure rollers, which are guided vertically movably in a stationary body 17 provided with vertical guides for the corresponding axes 15 and 16 and by means of compression spring 18 against the driven rollers 9 and 11, respectively be pressed.
• the two driven rollers 9 and 11 of the roller pairs 9/10 and 11/12 are now kinematically coupled according to the invention by means of a flexible force transmission element 19, wherein.
• the element 19 is preferably a slip-free working element.
• the force transmission element 19 is a chain or a toothed belt which engages with corresponding chain wheels or toothed belt pulleys for the purpose of slip-free force and motion transmission.
• the force transmission element 19 is rotatably supported around the drive roller 20 or 21 of the driven roller 9 or 11 of each pair of rollers and at least two further fixed deflection rollers 22 and 23, the corresponding axes 24 and 25 of which in the frame of the machine (not shown) are led. Furthermore, in the track of the force transmission element 19 there are two connected to a roller tandem 26,
• the axes 29 30 of the rollers 27 and 28 are rotatably mounted in a common bearing body 31.
• the force transmission element 19 forms between the drive rollers 2 and 21 and the roller 27 and between the two deflection rollers 22, 23 and the roller 28, a loop 32 and 33. Since the rollers 20, 21, 22 and 23 are mounted in a fixed position, the circumference of the flexible force transmission element 19 is independent of the position of the roller tandem 26.
• a Sys piston 34 / cylinder 35 is provided in FIG. 1, the piston rod 36 of which is connected directly to the bearing body 31.
• the cylinder is connected by means of a line 37 with valve 38 to a pressure source (not shown) for a suitable fluid and contains a return spring 39.
• a pressure source not shown
• the pressure medium flows into the cylinder 35 from below and pushes the piston 34 together Piston rod 36, overcoming the force exerted by the return spring 39, from bottom to top, which displaces the bearing body 31 z from position A to position B.
• the piston 34 can then together
• Bearing body 31 can be returned to its initial position under the influence of the force of the return spring 39.
• other methods of moving the tandem 26 e.g. purely mechanical drives with toothed
• the axis 24 of the deflection roller 22 is equipped with a pulley 40 for a belt 41.
• the belt 41 is driven by a motor 42 with a pulley 43 and thus sets the power transmission element 19 in circulation.
• the friction roller 6, starting from the axis 14 of the roller 11, is driven by means of the pulley 44, belt 45 and pulley 46, so that there is a kinematic coupling between the roller 11 and the friction roller 6.
• the belt 45 is preferably selected as a toothed belt.
• a chain drive can of course also be used for the friction roller 6.
• the ratio of the diameters of the pulleys 44 and 46 is selected to be essentially the same as the ratio between the diameters of the roller 11 and the friction roller 6, so that between the clamping line n and the friction roller 6 there is no distortion 3 (if one of a possible, negligible tension delay is subjected).
• the type of drive of the power transmission element 19 and the friction roller 6 shown here is not the only one that can be considered in the context of this invention: the element 19 could e.g. can be driven by driving the axis 13 of the roller 9, while the friction roller 6 could be driven by kinematic coupling with the axis 25 of the deflection roller 23.
• rollers 9 and 11 are the same
• OMPI Have diameter and / or are kinematically coupled by means of drive rollers 20 and 21 of the same size. If d is the case, then both driven rollers 9 and the roller pairs 9/10 and 11/12 have the same surface speed, with which the fiber support 3 rotates when the
• Power transmission element 19 is transported around the stationary tandem 26 between the clamping lines m and n without warping. If one wishes, however, that betwee • m the clamping lines and n is the fiber layer 3 is always, during loading operating the apparatus nieworfe a certain delay is then need only the diameters above the rollers 9 and 11 and / or the drive rollers 20 and 21 to be selected accordingly: the roller pairs 9/10 and 11/12 then behave in a known manner like the feed roller pair 9/10 or the outlet roller pair 11/12 of the drafting field of a drafting system.
• one of the roller pairs is kept stationary with respect to the other during the displacement of the roller tandem 26, so that the relative rotation of the second roller pair must take place in relation to a stationary roller pair.
• the roller 9 is braked directly by means of a brake 50 actuated by a system cylinder 47 / piston 48 and piston rod 49.
• the piston 48 is actuated by means of line 51 and valve 52.
• This shown way of holding the pair of rollers 9/10 is only one of many possibilities which can be used: for example, the use of a so-called stop motor, i.e. a motor equipped with a brake, instead of motor 42 is also a very good solution.
• the device shown now works as follows: In normal operation of the winding 4, ie during the build-up phase thereof, the cylinders 35 and 47 are depressurized, ie the tandem 26 is in its lower position A, and the roller 9 is not braked.
• the motor 42 drives the roller pairs 9/10 and 11/12 via the belt 41 and the force transmission element 19, which continuously pull the fiber support 3 out of the cans 1 and 2 and convey it to the winding 4.
• the winding 4 rotates by friction on the friction roller 6, which is also driven by the motor 42, and the fiber support 3 is wound onto the winding surface.
• the motor 42 is switched off.
• the fiber template 3 between the clamping lines m and n and from the clamping line n to the winding 4 is maintained throughout.
• valves 52 and 38 are actuated simultaneously or in quick succession, whereby the brake 50 comes into action and the roller tandem 26 is shifted from its lower position A to the upper position B shown in broken lines.
• the drive roller 21 and the deflecting roller 23 must rotate clockwise, which results in the rollers 11, 12 being rotated in the sense of conveying the fiber template 3 from left to right . Since the rollers 9, 10 stand still, the fiber template 3 is separated between the clamping lines m and n by pulling apart, which is the purpose of the invention. Between the displacement path L of the tandem 26, the diameter d of the drive roller 21 of the driven roller 11 further rotated roller pair 11/12, the diameter D of the driven roller 11 and the maximum stack length s de fiber template 3 there is preferably the following relationships
• Roller pair 11/12 larger than the maximum stack length s i i.e. that the fiber template is completely separated.
• the friction roller 6, which is kinematically coupled to the roller 11, is always rotated by the same superficial distance, so that the fiber template 3 is always properly wound onto the surface of the roll 4 .
• the separated template end (not shown) can now be wound onto the surface of the roll 4 by two methods, whereby the roll 4 is made available for its replacement.
• the motor 42 can be put into operation again for a short time; thereby who the, as during normal operation, the rollers 9, 11 un driven, whereby the fiber template before and after the Tren point is shifted from left to right.
• the motor 42 is switched off again and the winding 4 either by hand or automatically, with known means not shown, against a new, empty tube
• the displacement path L of the tandem 26 is chosen to be so large that not only the fiber template 3 would be separated by the relative rotation of the rollers 11, 12 and 6 compared to the rollers 9, 10, but that the separation point of the fiber layer 3, and the winding-side end is the same, • the reel 4 conveyed up to the surface, while the rollers 9 and 10 stand still.
• the winding change operation can also be carried out here in a known manner.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Preliminary Treatment Of Fibers (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Multicomponent Fibers (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=4308634

Family Applications (1)

Country Status (10)

Cited By (7)

Families Citing this family (1)

Citations (3)

• 1980
  • 1980-07-05 DE DE8080901271T patent/DE3067684D1/de not_active Expired
  • 1980-07-05 JP JP50154180A patent/JPS56500852A/ja active Pending
  • 1980-07-05 AT AT80901271T patent/ATE7311T1/de not_active IP Right Cessation
  • 1980-07-05 WO PCT/EP1980/000044 patent/WO1981000118A1/de active IP Right Grant
  • 1980-07-05 BR BR8008746A patent/BR8008746A/pt unknown
  • 1980-07-08 AU AU60223/80A patent/AU6022380A/en not_active Abandoned
  • 1980-07-08 ES ES493612A patent/ES493612A0/es active Granted
  • 1980-07-09 IT IT23345/80A patent/IT1131941B/it active
  • 1980-07-09 IN IN792/CAL/80A patent/IN153136B/en unknown
• 1981
  • 1981-01-26 EP EP80901271A patent/EP0031830B1/de not_active Expired

Patent Citations (3)

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