DE2102816A1 - Tube for taking up a spool of thread - Google Patents

Description

PATENT LAWYERS DR.-ING. WOLFF, H. BARTELS, DR. BRANDES, DR.-ING. HERO

, December 16, 1970

STUTTGART 1;

LANGE STRASSE 51 TELEPHONE. (0711) 296310 and 2972Γ5 TELEX ₁ 0722312

Our reference number 122 831/130975

Emil Adolff Company, Reutlingen (Baden-Württemberg)

Tube for taking up a spool of thread

209833/0216

The invention relates to a sleeve for receiving a yarn package to be penetrated with a treatment medium, which can be changed in length and has openings in its wall for the treatment medium to pass through.

Sleeves of this type are used as carriers, in particular for dyeing crimped or bulky yarn wound on them, which is wound into a soft package in order to remove the crimp of the obtained in a previous crimping process The thread cannot be completely removed by the effect of temperature during the subsequent dyeing. To be even To achieve through-coloring of the yarn lap during dyeing, the yarn laps are compressed in the axial direction of the sleeves. For this purpose, the tubes, which are usually not wound over their full length, are placed one above the other on the dyeing tubes in the dyeing machine attached sleeves are pressed together in the axial direction with high pressure, which is why the sleeves in their axial direction must be adjustable in length.

For this purpose, sleeves of the type mentioned are known, the individual in the axial direction successive Have rings that are connected in the axial direction via one-piece snake-shaped, elastic connecting webs, which follow one another at intervals in the circumferential direction. The length adjustability of these sleeves is due to the serpentine connecting webs given that to the required

«■. ^ j jj .. ^ λ like the rest of the parts,,. ,, to achieve elasticity, / consist of synthetic material. Sleeves of this type can be manufactured cheaply because of this choice of material. Since these sleeves are permanently deformed after the dyeing process as a result of the effect of temperature, they can only be used once. There are also reusable

* r \ Π C £

reversible sleeves, e.g. _e / rust- and acid-resistant steel

209833/0 216

knows that from a coil spring with between the screw threads extending axial connecting loops exist. Sleeves of this type are expensive to purchase.

made of plastic ,, "".,

The known sleeve legs have the particular disadvantage that the lowermost layers of yarn of a yarn package wound onto them are jammed when they are pressed together. In the case of the known disposable sleeves made of plastic, this is due to the fact that the sleeve is not freely movable when pressed together relative to the yarn package λ , but that the lowest layers of yarn are clamped between the rings and the connecting webs and move along with the sleeve parts in the longitudinal direction when pressed together, v / as especially in the area of the tube ends, where the greatest displacement between the tube and the thread package takes place when the tube is pressed together.

The object of the invention is to provide a variable in length sleeve for receiving a yarn package ,, wherein the lowermost Garnlaaen upon axial compression of the HüTse not eingeklemmtjwerden und__die..auch as reusable sleeve herstellb is ar "... i.

The task is in accordance with a sleeve of the type mentioned derErfindung achieved in that at least two sleeve parts are provided, which are relative to each other in the axial direction are slidably guided together. In that the length variability of the sleeve by relative to each other displaceable sleeve parts are given, are ^ clamps of the lower yarn layers' avoided; because when the sleeve parts are pressed together, the sleeve parts move towards each other, *

"^ J. - ..without that the lower yarn lay

pinched and moved along with it. FerrPis the sleeve

209833/0216

measured the invention with appropriate material selection, e.g. at Manufactured from metal or temperature and acid-resistant plastic, also as reusable ones at low cost Sleeve can be produced, since the length variability is not dependent on the material here.

In an advantageous embodiment of a sleeve according to FIG In accordance with the invention, the sleeve parts are formed from tube pieces that can be pushed into one another, the outer edge of the end of the outer tube piece facing the inner tube piece towards the end edge is bevelled out so that it slips easily under the lowest layers of yarn when the pipe sections are pushed into one another, without crushing or pinching them. Such a sleeve also requires little manufacturing effort.

In another, particularly advantageous embodiment of a sleeve according to the invention, the two sleeve parts each have the same diameter and the same in circumferential direction Axially directed tongues arranged at a distance from one another, wherein

¹ ; the tongues of one

Sleeve part engage alternately in the tongue width corresponding spaces between the tongues of the other sleeve part. Through the in a common, advantageously circular cylindrical ,. Tongues lying flat ensures that the lowermost layers of yarn are not exposed to the risk that they will Pushing together the sleeve parts are pushed in front of them or are pinched or crushed between them.

For proper guidance of the tongues against one another, the tongues can in another embodiment at their to the interspaces facing sides each have guide surfaces along which the tongues of the two sleeve parts in engagement with one another are.

209833/0216

Thus, in one embodiment, each tongue can at a time be attached to its own both sides have protruding tarpaulin webs projecting into the spaces, which in the radial direction by the height the webs are arranged offset to one another. This is a simple way of bracing the Tongues achieved in the radial direction, which ensures the required strength of the sleeve and which prevents the tongues of a sleeve part may move slightly radially outwards when they are pushed together.

Bracketing in this form can be used in another embodiment according to the invention advantageously also 'achieved in that the tongues of a sleeve part on both Pages each guide grooves and the tongues of the other sleeve part on both sides each assigned to the guide grooves Have guide webs, the guide grooves on the one hand and the guide webs on the other hand in a preferred Embodiment can form a dovetail guide.

In a particularly advantageous embodiment of a sleeve According to the invention, the tongues can in each case in the region of their edges adjacent to the intermediate spaces on the outer surface over this protruding and extending in the longitudinal direction of the tongue Have webs as a support for the yarn package. This ensures that the lowermost yarn layers are at a radial distance from the outer surface of the tongue and the tongues when pushing the sleeve parts together / under the lowest Layers of yarn are pushed so that they are not pushed in front of the tongues and possibly crushed or pinched can be. Furthermore, the arrangement of the webs facilitates a relative shift between the sleeve part and the yarn package, since the lowest layers of yarn rest on the webs only on a small area, almost point-like, so that

209833/0216

easier relative shift due to the small contact surface is possible.

In a further advantageous embodiment, the Tongues at their free end facing away from the sleeve end bevelled approximately in a wedge shape from the outer surface to the sleeve interior be. The bevelling of the tongues and the webs provided on them ensure that the tongues when pushed together, they are sure to be pushed under the lowest layers of twine.

In another embodiment, it can be advantageous when a sleeve part has a ring at its end facing away from the sleeve end, on which the tongues of this sleeve part rest with their surface facing the inside of the sleeve and are fastened. The tongues of a sleeve part are through the ring fixed in their position, which in some cases facilitates the insertion.

The tube is held on a winding device for winding at a certain tube length. Relativity the sleeve parts should not be given here. IM this To achieve the goal is provided in an advantageous embodiment according to the invention that the Htilsenteile in a relative position determining a sleeve length are held by means of a non-positive or positive lock, which can be overcome by axial compressive force. The axial compressive force must exceed a certain value in order to activate the lock to overcome.

¹ Through the arrangement of the lock / ifcit simple means a locking of the sleeve parts is given in a certain relative position,

209833/0216

- 7 determines the tube length required for winding.

In a further advantageous embodiment, a Sleeve part in the region of the end facing away from the sleeve end has at least one recess and the other sleeve part in the same Area have at least one associated projection which engages in the recess. This is with a simple design effort created an effective lock .

The invention is described in detail below with reference to exemplary embodiments of dye tubes shown in the drawings explained.

Show it

Fig. 1 is a partially sectioned side view of a first embodiment,

2 shows part of an axial section of a second Embodiment,

3 shows an axial section of a third embodiment,

FIG. 4 shows a side view of the middle pipe section of the embodiment according to FIG. 3,

5 shows an axial section of part of a fourth embodiment sbeispie Ie s,

6 shows an illustration of a fifth exemplary embodiment corresponding to FIG. 1,

2098 3 3/0216

7 shows a section along the line VII - VII in FIG. 6,

FIG. 8 shows a section, corresponding to FIG. 7, of a sixth exemplary embodiment,

9 shows a representation of a seventh exemplary embodiment corresponding to FIG. 1 /

10 shows an enlarged section along the line X-X in FIGS. 9 and

11 and 1 * 2 of FIG. 10 corresponding sections of an eighth and ninth embodiment, respectively.

In Fig. 1, a dye tube 10 is shown, which as inein-

two other sliding, circular cylindrical sleeve parts / Has pipe sections 11 and 12 which each carry an end ring 13 and 14 at the end of the sleeve. The wall of the two pipe pieces 11 and 12 is provided with openings 15 and 16, respectively, which consist of round holes. As the sectional view shows, is the wall thickness of the pipe sections 11 and 12 is relatively small. The inside diameter of the pipe section 11 and the outside diameter of the pipe section 12 are coordinated so that both pipe sections run smoothly but without much play from the one shown, the sleeve length in this state determining the relative position starting after overcoming a lock Can be pushed into one another by exerting an axial compressive force. The lock is in the embodiment shown by a

209833/0216

Adhesive connection 17 is formed by the two pipe sections 11 and 12 in the area of the end ring 13 or 14 facing away from one another,

, ^ In - ,. de;. Are tixfert r_ desired starting position .. _n ",""j of the plugged" EnÄen / to each other, the outer edge of the end of the outer tube piece 11 to the end ring 13 facing away comprises a to the outer surface of the inner tube portion 12 toward flat running bevel 18, through which the transition from the cylindrical outer surface of the inner pipe section 12 to the outer surface of the outer pipe section 11 takes place gradually.

In the starting position shown, in which the pipe sections 11 and 12 are fixed to one another, the dyeing tube 10 is wound in a winding device with a so-called crimped or bulked yarn, which consists of a synthetic, multifilament type of thread that has thermoplastic properties. The crimp is introduced in a well-known crimping process by twisting the thread and under the action of heat and "infixed" by subsequent cooling of the thread treated in this way it is desired to be removed again, the crimped yarn is wound onto the dye tube 10 to form a soft lap. The so-wound dye tubes with the yarn laps are then placed on top of one another on a dye tube in a dyeing apparatus, the end faces of the dye tubes each lying on top of one another. In order to achieve a uniform through-dyeing of the thread lap during the dyeing process, which is not guaranteed with a soft lap, it is necessary to compress the thread lap with relatively high pressure. For this purpose, the dye tubes arranged one above the other are exposed to high axial pressures on a dye tube. Under the action of the pressure, the lock in each dye tube is overcome first, which fixes the two tubes in the starting position shown, after which the two pieces of tube are pushed into one another. ■ When interlocking

209833/0216

- IQ -

ben of the two pipe sections 11 and 12, the outer pipe section 11 engages under the lowermost, resting on the inner pipe section 12 Layers of yarn. The bevel 18 on the outer pipe section 12 supports reaching under and prevents the If the pipe sections are pushed into one another, the lowest layers of yarn can be crushed or pinched. While the pipe pieces push into one another, they move at least over part of their length relative to the yarn package, until the individual Wrap of yarn lie against one another so far that the pressure acts on the wound yarn and presses them firmly together axially evenly will. When this state is reached in the dyeing machine the actual dyeing process, i.e. the flooding of the yarn package with the dye liquor used as the treatment medium, can be carried out kick off. Here, a color liquid is alternating in the radial direction from the inside to the outside and from the outside to the outside passed inside through the openings 15 and 16 of the dye tube and through the yarn package. The number of breakthroughs 15 and 16 in the dye tubes is chosen so that the best possible flow through the dye tubes when pushed together the yarn package has been reached by the dye liquor.

The second embodiment of a dye tube shown in FIG. 2 110 differs from that in Fig. 1 only in that it has a positive lock between the two has telescoping pipe sections 111 and 112, by which the two pipe pieces for winding the dye tube are fixed in the relative position shown to one another. The barrier is through a circumferential locking groove 119 on the inner circumferential surface of the outer pipe section 111 on the one hand and by a web 120 on the outer circumferential surface of the inner pipe section 112, on the other hand, which engages in the locking groove 119. This lock is by exceeding a certain axial

209833/0216

directed compressive force on the two pipe sections 111 and 112 surmountable. After releasing the lock, both pipe sections can be pushed together further without great effort. In order to ensure this, the inner pipe section 112 has incisions 121 in the wall in the region of the web 120 that run in the longitudinal direction of the sleeve. Resilient strips 122 are formed by the incisions 121, which spring radially inward when pushing the pipe sections together.

In the third embodiment of a dye tube 30 shown in FIGS. 3 and 4, two end pipe pieces 31 and provided, which are arranged on a central pipe section 33 and can be pushed onto this further. Also in this embodiment is the lock by a circumferential locking groove 34 on the inner circumferential surface of the outer end pipe pieces 31 and 32 and by an associated web 35 on the outer circumferential surface of the inner central one Pipe section 33 is formed. This lock differs from that of the dye tube 110 in FIG. 2 only in that that the inner diameter of the two end pipe pieces 31 and on the length between the end and the locking groove 34 the outer diameter the webs 35 on the middle pipe section 33 corresponds, so that the webs 35 are not radial after overcoming the lock outwards against the inner surface of the end pipe pieces 31 and 32, but are not loaded and ensure that the pipe sections can be pushed together easily. In the wall of the Middle pipe section 33 provided notches 36 form resilient strips 37, which allow overcoming the locking mechanism and then spring back to di-2 starting position.

The fourth embodiment of a dye tube shown in FIG 130 differs from the dye tube in Fig. 3 Ie-

209833/0216

only in that the inner circumferential surface 138 of the wall of the end pipe pieces, as is shown for the end pipe piece 132, does not run in a circular cylinder, but instead slightly tapered towards the end which is arranged on the central pipe section 133. This training makes it easier the pushing together of the pipe pieces, since the web 135 with increasing shortening of the sleeve with less force radially ii is pressed outwards against the inner circumferential surface 138.

In the fifth exemplary embodiment of a dyeing tube 40 in FIGS. 6 and 7, the two tube pieces 41 and 42, which can be pushed into one another, are guided to one another in a non-rotatable manner in the circumferential direction. As can be seen in particular from FIG. 7, the wall of each of the two pipe sections 41 and 42, which has essentially the same wall thickness, is shaped in such a way that axially extending, alternating grooves and webs can be formed on the outer surface and on the inner surface of the wall . In FIG. 7, the grooves of the outer surfaces are denoted by 43 and the webs by 44. The webs and grooves of the inner surface of the outer pipe section 41 are dimensioned in such a way that they engage in the grooves or over the webs of the outer surface of the inner pipe section and result in an almost play-free guide. The grooves and webs each have a u-profile when viewed ± m cross-section. This star-shaped design has the advantage that a relative displacement between the lowermost yarn layers resting on the outer circumferential surface and the respective pipe section 41 or 42 is easier because the yarn layers only rest on the webs 44 and therefore on a small contact surface. The smaller contact surface reduces the static friction between the lowermost yarn layers and the outer circumferential surface. For the passage of the dye liquor, rectangular, elongated openings 45 are provided in the walls of the two pipe sections 41 and 42.

209833/0216

As shown in the sixth embodiment of a dye tube 140 in FIG. 8, the grooves 143 and webs 144 in the Cross-section also V-profile with a relatively large opening angle and rounded tips of the V.

In the seventh embodiment of a dye tube 50 shown in FIGS. 9 and 10, zvrei end with a. End ring 51 and 52 provided circular cylindrical sleeve parts 53 and 54 provided the same inside diameter and "same outside diameter exhibit. Each sleeve part 53 and 54 has circumferentially arranged at equal distances from one another, axially directed tongues 55 and 56, each having the same widths. Between the tongues of each sleeve part 53 and 54 Interstices 57 and 58 corresponding to the width of the tongue are formed in which the tongues 56 and 55 engage in an axially displaceable manner. The tongues 55 and 56 are each provided with circular openings 59 and 60 for the passage of the dye liquor.

In the area of their edges adjacent to the spaces 57 and 58, the tongues 55 and 56 have protruding, Struts 61, 62 running in the longitudinal direction of the tongue or 63, 64, on which the lowermost yarn layers of a wound yarn package, not shown, rest almost point-like. At their free end facing away from the end ring 51 and 52, the tongues 55 and 56 point from the outer surface to the inside of the sleeve towards approximately wedge-shaped bevels 65 and 66 which, when the sleeve parts are pushed together, reach under the lower yarn layers. The sleeve part 53 has at the free end of the tongues 55 a ring 67, on the outer The tongues 55 rest on the circumferential surface with their surface facing the inside of the sleeve and by gluing, welding or by integral training with the ring 67 are held.

209833/0216

The tongues 55 and 56 of the two sleeve parts are in each case against one another guided. As can be seen in particular from FIG. 10, have they each protrude on both seitans and into the associated spaces 57 and 58 protruding flat webs 68, 69 or 70, 71, which are arranged offset to one another in the radial direction by the height of the webs for each tongue, jo that the outer flat webs 71 of the tongues 56, the inner flat webs 68 of the tongues 55, and the outer flat webs 69 of these Tongues on their part overlap the inner flat webs 70 of the tongues 56. In the relative position shown in FIG. 9, the two sleeve parts 53 and 54 are positively locked by a surmountable acting lock fixed. This lock is provided by depressions 72 on the one hand, which are located on the outer surface of the ring 67 are located in the spaces 57, and by projections 73 on the surfaces of the tongues 56 facing the inside of the sleeve on the other hand formed.

The eighth and ninth exemplary embodiments shown in FIGS. II and 12, respectively a dye tube 150 or 250 differs from that in FIGS. 9 and 10 only by a different design the leadership on the tongues.

At. of the dyeing tube 150 in FIG. 11, the tongues 155 of the one tube part each point radially inward and the tongues of the other sleeve part, side surfaces 174, 175 and 176, 177, respectively, tapering radially outwards in a wedge-shaped manner on. The tongues 155 are attached to the ring 167.

In the case of the dye tube 250 in FIG. 12, the tongues 256 des a sleeve part on both sides in each case wedge-shaped guide grooves 278, 279. The tongues 255 of the other sleeve part have on both sides the guide grooves 278, 279 adapted guide webs 280, - 281 euf, which run in the guide grooves and together with them form a dovetail guide.

209833/0216

The lock fixing the sleeve parts in a predetermined relative position for winding the dye sleeve can be used in all embodiments of the dye sleeves as in the first embodiment by an adhesive connection 17 or through it be formed so that the mutually displaceable sleeve parts are in one piece in the desired relative position, for example, are made in this position as a one-piece part, and a predetermined breaking point in the area of Lock is provided. The fixation of the two sleeve parts does not necessarily have to be by an adhesive connection, one Notch or take place through one-piece training with predetermined breaking point. The sleeve parts can also be tightly interlocked be inserted so that they do not move due to the pressure of the spool holder, but due to the high pressure that when pressed together axially · before dyeing, can be displaced. The staining tubes can be made of plastic and / or made of metal, preferably made of a rust- and acid-resistant chromium-nickel alloy.

209833/0216

Claims (1)

--16 .- PATENT CLAIMS I)! Sleeve for receiving a treatment medium to * "" traversing thread winding, which can be changed in length is and has openings in its wall for the passage of the treatment medium, thereby marked, characterized in that at least two sleeve parts (11, 12; 53, 54) are provided, which are relative to one another in the axial direction are slidably guided together. 2) Sleeve according to claim 1, characterized in that the sleeve parts consist of tube pieces (11, 12) which can be pushed into one another are formed. 3) Sleeve according to claim 1 or 2, characterized in that swex end pipe pieces (31, 32) and a middle pipe piece (33) are provided on which the end pipe pieces are guided. 4) sleeve according to claim 2 or 3, characterized in that the outer edge of the inner pipe section (12, 33) facing end of the outer pipe section (11; 31, 32) for End edge is beveled. 5) sleeve according to one of claims 2-4, characterized in that that the wall of the pipe pieces (41, 42) axially ■ "" trending, each other alternating depressions (43) and elevations (44). c} Sleeve according to claim 5, characterized in that the Vertiexun ^ en {43; 143) and elevations (44; 144) each have a U-profile or V-profile in cross section. 209833/0216 7) sleeve according to claim 1, characterized in that the both sleeve parts (53, 54) each have the same diameter and in the circumferential direction at the same distances from one another have arranged, axially directed tongues (55, 56), that the tongues of the one sleeve part and / alternate in the tongue width correspondae Interstices (58 or 57) engage between the tongues of the other sleeve part. 8) sleeve according to claim 7, characterized in that the | Tongues (55, 56; 155, 156; 255, 256) each have guide surfaces on their sides facing the intermediate spaces (68-71; 174-177; 278-281) along which ,. _ of the / both sleeve parts .__ the tongues are in exile. 9) sleeve according to claim 8, characterized in that each tongue. (55, 56) protruding on both sides and flat webs (68, 69 or 70, 71) projecting into the spaces (57, 58), which in the radial direction are arranged offset to one another by the height of the webs. 10) sleeve according to claim 8, characterized in that the ( Tongues (155) of one sleeve part each to the inside of the sleeve and the tongues (156) of the other sleeve part each to the Sleeve outer tapering / wedge-shaped side surfaces (174, 175 or 176, 177). ίί) sleeve according to claim 8, characterized in that the , Tongues (256) of a sleeve part on both sides in each case guide grooves (278, 279) and the tongues (255) of the other The sleeve part have guide webs (280, 281) assigned to the guide grooves on both sides. 209833/0216 12) sleeve according to claim 11, characterized in that the Guide grooves (278, 279) on the one hand and the guide webs (280, 281) on the other hand a dovetail guide form. 13) Hülse'nach one of claims 7-12, characterized in that that the tongues (55, 56) each in the region of their edges adjacent to the spaces on the Outer surface over this protruding and extending in the longitudinal direction of the tongue webs (61, 62 and 63, 64) as Have support for the twine. 14) sleeve according to one of claims 7-13, characterized in that that the tongues (55, 56) at their free end facing away from the sleeve end from the outer surface to the sleeve interior are beveled approximately in a wedge shape. 53) 15) A sleeve according to any one of claims 7-14, characterized in that ciaB5ein ^e! Ilse part (at its the end of the sleeve end facing away from a]) mnlei67), 'where the tongues (55) of this sleeve part (53) with its on The surface facing the inside of the sleeve rest and are fastened. 16) Sleeve according to one of claims 1-15, characterized in that the sleeve parts (11, 12; 111, 112; 53, 54) in a relative position determining a sleeve length by means of a non-positive or positive lock (17? 119, 120; 72, 73) are held, which can be overcome by axial compressive force. 209833/0218 2102815 17) sleeve according to claim 16, characterized in that a Htilsteil (111-53, 67) in the area of the end facing away from the sleeve end at least one recess (119-72) and the other sleeve part (112? 54, 56) in the same area has at least one associated projection (120 »73) which engages in the recess. 18) Sleeve according to claim 17, characterized in that a sleeve part (111) extends in a circumferential direction Locking groove (119) and the other sleeve part (112) has a web (120) running in the circumferential direction. 19) sleeve according to claim 2 and 18, characterized in that deß the locking groove (119) on the inner peripheral surface of the outer pipe section (111) and the web (120) on the outer I-catching surface of the inner pipe section (112) are provided and that the inner tubular piece (112) in the region of the web (120) in the wall in the longitudinal direction of the sleeve having extending incisions (121) to form individual resilient strips (122). 20) Sleeve according to claim 15 and 17, characterized in that the depressions (72) on the in the spaces located between the tongues outer surface of the ring (67) of the one sleeve part (53) and the projections (73) is provided on the surfaces of the tongues (56) of the other sleeve part (54) facing the inside of the sleeve are. 21) Sleeve according to one of Claims 1-16, characterized in that one sleeve part (11-53) is glued to the other sleeve part (12-54) in the region of the ends facing away from the sleeve end and guided together. 209833/0216 22) Sleeve according to one of claims 1-21, characterized in that the sleeve parts at least partially Made of plastic,>. ' 209833/0216