EP0128176B1 - Chambre de chauffe pour fils continus - Google Patents

Chambre de chauffe pour fils continus Download PDF

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Publication number
EP0128176B1
EP0128176B1 EP84900046A EP84900046A EP0128176B1 EP 0128176 B1 EP0128176 B1 EP 0128176B1 EP 84900046 A EP84900046 A EP 84900046A EP 84900046 A EP84900046 A EP 84900046A EP 0128176 B1 EP0128176 B1 EP 0128176B1
Authority
EP
European Patent Office
Prior art keywords
thread
heating chamber
sealing
sealing strips
chamber according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP84900046A
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German (de)
English (en)
Other versions
EP0128176A1 (fr
Inventor
Walter Runkel
Erich Lenk
Karl Bauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19833308251 external-priority patent/DE3308251A1/de
Application filed by Barmag AG filed Critical Barmag AG
Publication of EP0128176A1 publication Critical patent/EP0128176A1/fr
Application granted granted Critical
Publication of EP0128176B1 publication Critical patent/EP0128176B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll

Definitions

  • the invention relates to a heating chamber for running threads.
  • This heating chamber is suitable for the direct treatment of a thread with saturated water vapor under increased pressure.
  • the particular problem with such heating chambers is that the heating medium, which is under increased pressure, escapes through the thread inlet and outlet in such large quantities that the operation of the heating chamber is uneconomical.
  • Labyrinth seals suitable for threading consist of a stack of mutually adjustable plates with openings. By moving the plates relative to each other, the openings can be adjusted to a large width and a small width suitable for threading (e.g. US-A-2,529,563).
  • these labyrinth seals have proven to be fundamentally unsuitable, since here the necessity of an undisturbed thread run cannot be reconciled with the necessity of providing a strongly tortuous outlet path in order to avoid losses of heating medium.
  • Gap seals are indeed suitable. With them, a large gap length causes a sufficiently large reduction in losses.
  • This heating chamber has obvious operating disadvantages.
  • a major disadvantage is that the bolt for sealing the thread guide groove and the parting line between the two surfaces must be fitted very tightly into the bushing, so that it is jammed therein, particularly when it cools down.
  • the solution according to the invention shows that the previously used idea of closing the thread channel or the surface warp of one body leading the thread absolutely tightly laterally by the closing surfaces of the other body was wrong. Because with metallic contact, tight tolerances would be required, which cannot be achieved due to the thermal expansion. When sealing with a flexible sealing plate, which also acts as insulation, it is completely prevented that the two bodies of the heating chamber heat up evenly. In both cases, the saturated steam supplied to the narrow thread channel with its only limited surface area is not able to heat the side walls of the heating chamber to a sufficient extent. Cold areas therefore form, in which condensate collections occur, which periodically evaporate explosively.
  • the distance of the sealing strips from the thread channel depends on the size of the body that forms the heating chamber and must be heated. The larger these bodies are, the greater this distance should be.
  • the cylindrical inner body of which is surrounded by a cylindrical outer body as a jacket and which has a diameter of 50 mm, the distance of the sealing strips from the thread channel was 1/10 of the diameter.
  • the solution according to the invention is supported in that at least one of the bodies is also subjected to a pressure cushion of the saturated steam from its rear side.
  • the heating chamber consists of an outer jacket and an inner cylinder with a thread guide groove enclosed by the latter.
  • the movable outer jacket and the inner cylinder are heated evenly on two sides of their circumference.
  • Sealing strips are also provided at a distance from one another on the back of the body.
  • the area circumscribed by these sealing strips is heated up. To exert the contact pressure, this area is larger than the area circumscribed by the sealing strips on the heating side, so that the pressure pad of the heating gas / saturated steam simultaneously causes pressure and heating of the two bodies.
  • a transverse seal is provided at the thread entrance and / or thread exit.
  • This cross seal can, for. B. are formed in that the sealing strips have extensions at their ends, which extend to the thread channel or up to close to the thread channel.
  • the transverse seals are designed as sealing strips, into which a thread groove is cut, which, moreover, is caused by the running thread itself when the sealing strips are made from a rubber-like material.
  • the insert groove is formed in insert pieces which are inserted into an insert groove of one body, the insert groove is accompanied on both sides by sealing lips.
  • the insert pieces are clamped into their insert grooves by means of the sealing strips, the sealing lips then having a double function.
  • the sealing strips are preferably made of an elastic material. They are inserted into grooves in one of the bodies that form the heating chamber. They protrude slightly above the top edge of the groove. The difference between the groove depth and the thickness of the sealing strips is preferably not greater than the elastic deformability of the sealing strips under the contact pressure provided for the operation.
  • the material of the sealing strips is also sufficiently heat-resistant.
  • the sealing strips it is expedient to design the sealing strips in one piece, in particular in the form of a ring.
  • the groove of the thread channel is preferably formed as a rectangular window with the narrow sides in the thread entry area and thread exit area.
  • the sealing strips can also be designed as a rectangular window.
  • the sealing lips are formed in that the outer body is divided in a radial or secantial plane and in that a sealing plate is inserted in this longitudinal plane, which is deformed by tightening the two halves of the outer body so that one end edge lies sealingly against the inner cylinder.
  • the division plane is preferably between the center of the inner cylinder and the thread groove in the inner cylinder, so that the end edges of the sealing plates form sealing lips on both sides of the thread channel.
  • the sealing plate is preferably inserted and braced before cutting the profile in the outer body and only then the profile is introduced so that the sealing plate adapts to the profile.
  • the heating chamber to which this invention is applied in any case consists of two bodies which, when in operation, have surfaces which are congruent in shape (sealing surfaces) and which form a separating joint. At least one of the surfaces has a surface distortion (surface deformation) which forms a thread channel, the cross-section of which is closed by the other closing surface.
  • the surface deformation can be formed as a groove in the one body.
  • the surface deformation of the other body can also be a groove.
  • the groove can preferably be formed on the surface line or screw line of an inner cylinder, which is enclosed by an outer cylinder as a jacket, the outer cylinder also having a groove on a surface line or screw line of its inner circumference, which preferably has a larger cross section than the first groove. If the grooves are covered in the threading position, an enlarged threading opening is created. By relative rotation of the jacket, the thread groove in the inner cylinder is ver closed.
  • a preferred embodiment consists of an inner cylinder with a groove and an outer cylinder which is slotted along a surface line. If the slot covers the groove of the inner cylinder, an insertion gap is created for a running thread.
  • the surface deformations i.e. H. Grooves or steps can be rectilinear or curved so that the thread is guided without contact or in contact with the surface warp.
  • the surfaces can be flat or slightly curved in the direction of the thread.
  • the thread heating chamber according to the invention can in operation, in particular at the thread entrance and / or thread exit to a small gap width of z. B. 0.2 to 0.5 mm width can be set so that a running thread can be guided undisturbed, but the losses of the heating medium are low.
  • the gap width, in particular in the thread outlet area, can differ over the gap length.
  • the two-part filament heating chamber can also be provided with recesses in the central region of its gap length, so that the clear width of the gap widens here. On the one hand, this can be useful in order to allow a certain ballooning of the thread and / or to avoid or reduce wall friction of the thread.
  • the treatment path can also be specified as desired by connecting several treatment chambers in series, since the required uniformity and constancy of the treatment temperature for several treatment chambers can be ensured by adjusting the pressure and by pressure equalization between the treatment chambers - with simultaneous removal of inert components.
  • the losses at the entrance and exit of the treatment section can be kept low and lower than with comparable air heating sections if the thread entry and thread exit locks are designed accordingly.
  • the saturated steam treatment chambers according to the invention are suitable in the case of the simple threading of running threads according to the invention, in particular for those thread treatment chambers in which a large amount of heat must be transferred to the thread at a high thread speed within a relatively short dwell time, as is the case, for. B. in the case of synthetic fibers in spinning processes, spin-stretching processes, spin-texturing or spin-stretch texturing processes and stretch-texturing, draw-twist, stretch-winding and other stretching processes is the case.
  • threads can be guided in one thread channel.
  • several surface faults e.g. B. groove to provide, with one or more threads are guided in each groove.
  • These several grooves are then between two sealing strips which are arranged at a distance from the outer grooves, which is particularly important for the temperature accuracy and the operating behavior of the outer grooves.
  • the filament heating chamber is made on both sides by forming a filament heating chamber on both sides of a central plate.
  • the pressurized heating chamber according to this invention is formed over its entire length by only two bodies, which likewise form the central heating region and the sealing end regions of the heating chamber.
  • the heating chamber according to this invention is used in particular for the direct heating of a running thread by means of a saturated water vapor. Therefore, in the context of this application, one speaks primarily of saturated steam.
  • Fig. 1 shows a heating chamber, which consists of the two flat plates 98 and 99. We look at the closing surfaces of the two plates. In the operating position, these closing surfaces, which are congruent in terms of their shape, lie on one another under a pressing force.
  • Each of these insert body 45 has thread channels 10, the width of which is adapted in the end regions of the heating chamber to the thickness of the thread to be treated and z. B. 0.2 mm for a thread of 167 dtex.
  • the insert pieces are surrounded by the longitudinal seal 35 on both sides and by a transverse seal 34 at the ends.
  • the plate 98 is penetrated by the bore 27, which serves as a steam supply channel.
  • the central region of the thread guide groove is connected to this steam supply channel by bores 48.
  • the plate 99 is connected to the plate 98, e.g. B. connected by a hinge (not shown here) so that it is pivotable in the direction of arrow 100.
  • the thread guide grooves 10 and 19 form a thread treatment chamber which, for example, through the steam supply channel 27. B. can be loaded with saturated water vapor.
  • the inserts are arranged at a distance from one another, so that extensions 101, 102 form between them.
  • the inserts can also lie close to one another, and their main advantage is that they can be mass-produced cheaply and easily replaced when worn or - when the thread titer to be processed changes - can be replaced by inserts with other channel widths.
  • the mouths of the thread guide grooves 10 of each insert 45 - seen in the direction of the outflowing steam - are rounded off so that the flow energy of the steam flow deflected by the Coanda effect is repeatedly destroyed by impact on the side wall of the next insert.
  • sealing lips 25 extend in the parting line between the closing surfaces of the two bodies on both sides of the thread guide groove 10, 19.
  • the length of the sealing lips is preferably almost equal to the length of the thread guide groove. However, it can also be slightly shorter.
  • the sealing lips are inserted in grooves so that they do not fall out when the thread heating chamber is opened and do not move in the parting line when the body moves relative.
  • the longitudinal movement of the sealing lips is prevented by the fact that the sealing lips have extensions 120 at their two ends, which are inserted into corresponding extensions of the grooves. This avoids thermal changes in length in particular.
  • the extensions at least partially seal the parting line between the bodies in the direction of the thread entrance and thread exit.
  • the grooves with their sealing lips are preferably located in the stationary body, which in turn is preferably the thread-guiding body.
  • a heating chamber is shown in cross section, which also consists of two flat plates 51 and 53. These plates are displaceable relative to one another parallel to their surface by cylinder-piston unit 69-71.
  • the front edge 105 of the plate 51 recedes behind the thread guide groove 10, so that an opening is created in which the thread can be laid.
  • the thread guide groove is closed. In the closed state, the thread guide channel 10 is supplied with saturated steam via bore 58 by opening a valve (not shown here) via steam feed line 80.
  • the back of plate 53 is also charged with steam through bore 103.
  • the plate 53 which is sealed off from the housing 104 by circumferential seals 49, is pressed against the other plate 51, so that these plates, at least their seals 56, lie on one another in a vapor-tight manner. It is particularly important that the area circumscribed by the surrounding seals 49 is larger than the area formed by the longitudinal seals 56, 57 and the associated transverse seals.
  • Fig. 3b shows a similar embodiment, the differs from that in Fig. 3a in principle only in that the front of the plate 51 is provided with a step 108.
  • the embodiment according to FIG. 3c is also essentially similar. Its main difference from the embodiments according to FIGS. 3a and 3b is that the plate 51 in one end position does not open a threading slot above the thread guide groove, but rather has an enlarged longitudinal groove 109 which, in the position shown, in which the heating chamber is not in operation, also the thread guide groove 10 is aligned and forms an enlarged threading gap through which the thread can be threaded pneumatically or by means of bristles.
  • the threading groove 109 is provided on one side with a bevel so that the thread is pressed into the thread guide groove 10 by the bevel when the plate 51 is moved into its operating position shown in dashed lines.
  • the housing 104 which surrounds the plates 51, 52 forming the heating chamber on at least two opposite sides, in the case of the exemplary embodiment according to FIG. 3c on all sides, is designed to be stable and rigid enough to absorb the steam forces and ensure, even when loaded with the steam pressure, that the plates lie close together in their contact surfaces (closing surfaces) and with their longitudinal and transverse seals.
  • the exemplary embodiment according to FIGS. 4 to 6 has the inner body 6, which is fixedly connected to the flange 3, and the outer body 4 with a handle 13, which is rotatably arranged around it.
  • the inner cylinder 6 Over its entire length, the inner cylinder 6 has the groove 10 (thread groove) which serves to guide the thread and which forms the thread channel in the operating position.
  • This thread groove 10 is expanded in the central region 19 in the circumferential direction (width) and in depth, so that there the thread can move, swing, and balloon without touching the walls, but in which the saturated steam in particular is under a uniform pressure and therefore also has a uniform temperature.
  • the outer cylinder 4 has a groove 11 which is made in the inner jacket and the flanks 12 of which run gently from the bottom of the groove onto the inner jacket.
  • the flange 3 has a hole 20, the front region 21 of which in the top view according to FIG. 5 covers the thread guide groove 10.
  • the flanks 22 of the hole 20 are therefore flush with the flanks of the thread guide groove 10 in the top view according to FIGS. 5 and 6.
  • the outer cylinder 4 is divided and is clamped by the flanges 23 and screws 24 such that the inner jacket closes tightly around the outer jacket of the inner body 6.
  • an elastic spacer plate 26, for. B. sealing plate In the parting plane of the divided outer body 4, an elastic spacer plate 26, for. B. sealing plate.
  • Longitudinal seals 25 designed as sealing strips are provided on both sides of the thread groove 10 in the inner cylinder 6, which seal the thread groove 10 and also its central region 19 in the circumferential direction.
  • the inner cylinder 6 has a central bore 27 serving as a preheating channel, which is closed at the top and communicates downward with the connecting pipe 28. Through the connecting pipe 28, the bore 27 is charged with a pressurized heating gas, in particular saturated steam.
  • the preheating channel 27 is connected to the thread groove 10, in particular its central region 19 through holes 29.
  • the groove 11 of the outer cylinder is brought into a position in which it - in the vertical direction - the hole 20 in the flange 3 and - in the radial direction - the thread groove 10 covered. This creates a large threading opening through which the thread can be threaded pneumatically or by means of a bristle or similar means.
  • the angle of rotation of the outer cylinder is greater than half the central angle (central angle) between the sealing strips 25.
  • the exemplary embodiment according to FIGS. 7 to 9 largely corresponds to that shown in FIGS. 4 to 6.
  • the heating chamber consists of a tubular inner cylinder 6 with thread groove 10.
  • the thread groove 10 is narrow in the thread inlet part 1 and in the thread outlet part and widens in the central region 19.
  • the inner cylinder 6 is fixed in place on the flange 3. Its central bore, which serves as a preheating channel 27, is connected to steam line 28 with saturated water vapor. The water vapor can escape through the holes 29 into the enlarged central region 19 of the thread groove 10.
  • the inner cylinder 6 is surrounded by an outer cylinder 4, which has an insertion gap 32 (slot) for the thread.
  • the outer cylinder 4 is surrounded by bandages 33 to increase the strength.
  • the outer cylinder 4 can be rotated by means of a handle 13.
  • the insertion gap 32 opens radially on the thread groove 10. It should be mentioned that the insertion gap 32 can also be directed secantially to tangentially.
  • the jacket In the second rotary position (operating position) shown in FIG. 9, the jacket is rotated so that the thread groove 10 is covered by the inner circumference (closing surface) of the outer cylinder 4 and thus forms the thread channel.
  • the inner cylinder 6 also has the transverse seals 34 at the thread inlet and thread outlet in addition to the longitudinal seals 25.
  • These cross seals can be O-shaped sealing strips that extend from one longitudinal seal to another. However, it can also be an O-ring which surrounds the entire inner part 6.
  • the sealing strips 25 and transverse seals 34 can be formed in one piece as a ring or rectangular window. The sealing strips and cross seals are placed in the grooves of the inner cylinder (or the outer cylinder) so that they do not slip due to the relative movement of the cylinders. The grooves are only so deep that the sealing strips protrude beyond the closing surface of one body and lie in the operating position of the two bodies in a sealing manner on the closing surface of the other body (applies to all exemplary embodiments).
  • transverse seals 34 By using the transverse seals 34 according to the exemplary embodiment 7 or 10, it becomes superfluous to press the outer jacket 4 against the sealing plate 8 by axial force, as is shown in FIG.
  • the inner cylinder 6 has on its rear side the longitudinal seals 35 shown in FIG. And FIG. And - in each case at the thread inlet and thread outlet - a transverse seal not visible here (corresponding to the transverse seals 34 on the front side).
  • the area between these longitudinal seals 35 and their transverse seals is charged via line 36 with the heating medium, here the saturated steam from tube 27. Since the secantial distance between the longitudinal seals 35 on the back of the inner cylinder 6 is greater than the secantial distance of the sealing strips 25 on the front of the inner part 6, in the operating position according to FIG. 9 the vapor pressure presses the movable outer cylinder 4 against the longitudinal seals in the direction of arrow 37 25 on the front.
  • the cylindrical inner part 6 (inner cylinder) is in turn firmly attached to the flange 3.
  • the outer part 4 is again designed as a rotatable jacket 4 (outer cylinder) provided with an insertion gap 32.
  • the insertion gap 32 opens into the thread groove 10 in the one rotational position (threading position) (not shown). In the other rotational position shown in FIGS. 11 and 12 (operating position), the jacket 4 covers the thread groove 10.
  • a groove 38 (insertion groove) running through from top to bottom is made in the inner cylinder 6 and preferably has the same width and depth over its entire length. Insert pieces 39 and 40 are inserted into the groove 38.
  • the inserts 39 form the thread entry part and thread exit part and have a narrow thread groove 10, as shown in FIG. 11.
  • the insert part 40 forms the central region 19 of the thread guide groove and can accordingly have a thread guide groove with an enlarged cross section, as shown in FIG. 11.
  • the inserts 39 and 40 are sealed along their entire length by longitudinal seals 25 on both sides of the groove.
  • the flanks of the insert pieces are sealed on both sides by sealing strips 41 with respect to the insert groove 38. In order to achieve a certain sealing mobility, the flanks of the insert groove and the insert parts are aligned parallel to one another.
  • the insert 40 of the central area 19 has on its rear side a longitudinal groove 42 which is penetrated by the holes 29 through which the thread groove 10 of the central area 29 is connected to the central bore 27 serving as a preheating channel for steam supply. Since the secantial distance of the sealing strips 25 on the thread groove side of the insert parts 40 is smaller than the secantial distance of the sealing strips 41, the insert piece 40 is pressed against the inner circumference of the jacket by the vapor pressure.
  • the insert pieces 39 have the transverse seals 34 already described for the exemplary embodiment according to FIG.
  • the inserts 39 at the thread inlet and thread outlet can, but do not have to, be provided with a longitudinal groove 43 on their rear side which is acted upon by steam pressure.
  • the vapor pressure from the longitudinal groove 42 of the insert 40 will provide sufficient vapor pressure also on the back of the insert 39.
  • the longitudinal groove 43 is not present or extends over only a short area from the insert 40 to the thread inlet or thread outlet, the vapor pressure forming behind the insert 39 is sufficient for the sealing lips 25 to be sufficiently pressed against the inner circumference of the jacket 4 to worry.
  • the end faces of the insert groove 38 are sealed by the sealing plates 44 which are tightly fitted and sealed into the insert groove 38 at the ends. Sealing plates can also be used which lie tightly on the end faces of the inner cylinder.
  • the thread inlet part and the thread outlet part of the heating chamber are formed by a plurality of relatively thin insert pieces 45.
  • the inner part 6, as also shown in FIGS. 7 and 10 has an insert groove 38.
  • the flanks of this insert groove 38, as can be seen in FIG. 14, are shaped in a converging manner in such a way that they provide support on both sides of a sealing lip 25 .
  • the heating chamber can also consist of an insert 40 in its central region. It can be seen that this insert 40 is also missing or can be replaced by individual shorter inserts.
  • the inserts 45 and 40 have flanks which are also adapted to the sealing lips 25. As a result, the inserts can be clamped between the sealing lips 25. Since there is a distance between the sealing lips, a static pressure will be established below the sealing lips, while a flow will arise above the sealing lips with a corresponding reduction in the static pressure. As a result, the sealing lips in this exemplary embodiment are also pressed forward against the inner circumference of the jacket 4.
  • the insert parts can consist of particularly wear-resistant materials in the exemplary embodiments according to FIGS. 10 to 14, such as, for. B. ceramic, in particular sintered ceramic or sintered metal. The advantage of this design is that the inserts can be easily removed when the thread titer to be machined or changed. Furthermore, the inserts are easy to manufacture in bulk, while the manufacture of a wide groove in the inner cylinder 6 requires less manufacturing effort than the manufacture of a very fine thread groove.
  • a double filament heating chamber is shown in FIG.
  • the filament heating chambers consist of plates 51, 52 and 53.
  • the plate pair 51 and 53 and the plate pair 52 and 53 each form a filament heating chamber.
  • Each plate 51 and 52 has the two planes 73 and 74 which are plane-parallel to one another and are connected to one another by a step 54.
  • the plate 53 is displaceable between the plates 51 and 52.
  • the plate 53 also has the plane-parallel planes 75 and 76, which are connected to one another by the steps 55.
  • the steps 54 and 55 of the plates 51, 52 and 53 are each of the same size. In the exemplary embodiment it is shown that the steps form a plane. However, a different level training is also possible. In particular, it is possible to make the steps concave - in the cross section shown. It is also possible to slightly bend the steps in the thread running direction so that the thread is guided in contact with a step. Likewise, curved surfaces can be provided instead of the planes in the thread running direction, so that the thread is guided in contact with a surface. In both cases, a curved thread channel is created.
  • the plate 53 is slidably guided with its levels 75, 76 between the mutually facing levels 73, 74 of the plates 51 and 52.
  • a longitudinal slit is created on the front of the plates 51 and 52 in the area of the steps 55 of the plate 53, since this step 55 slightly projects above the front of the plates 51, 52.
  • a thread running parallel to the longitudinal slots can be inserted transversely to its running direction into the gap between the plates 51 and 53 or 52 and 53.
  • the plate 53 is then moved back into a position which is shown in FIG. 16a (operating position). In this position, two narrow, parallel, straight or possibly curved thread channels are created.
  • Each thread channel is formed by the plane 74 and the step 54 of the plate 51 and 52 and by the plane 75 and the step 55 of the plate 53.
  • the two thread channels are fed with saturated water vapor through steam connection 61 and channel 58 and intermediate channel 60.
  • a recess 77 is machined into the plane 74 and the step 54 of the plates 51 and 52, respectively. This recess causes an expansion of the thread channel. In this case, this expansion serves to allow the steam flowing through steam channel 58 to flow unthrottled into channel 60, so that the same pressure and temperature conditions exist in the two adjacent thread channels.
  • the recess 77 over a greater length, so that the narrow gap only remains in the inlet and outlet region of the thread 59. It should be mentioned that the gap width there is approximately 0.2 to 0.3 mm with a length of the end regions of 60 mm and more. This means that a thread of 167 dtex can be treated with saturated water vapor without damaging wall friction with only slight steam losses at temperatures of 220 ° C, corresponding to a pressure of 24 bar.
  • the plate pack consisting of plates 51, 52 and 53 is surrounded on all sides by insulating material 62. This plate pack is enclosed in a solid block (housing), which is screwed together from the plates 64, 65, 66 and is stable enough to absorb the pressures arising in the interior of the thread channel and the forces caused thereby.
  • the hose / expansion body 68 is nestled into a chamber 67 of the plate 66, which extends essentially over the entire length of the heating chamber.
  • the hose has be preferably an elongated cross section, so that the width with which the hose rests on the side surface of the plate 52 is greater than the width of the thread channel in the operating position.
  • the hose 68 can therefore be subjected to a pressure that is approximately lower by the area ratio in order to compress the plate pack 51, 52, 53 in a vapor-tight manner.
  • the hose 68 is either connected to the company compressed air network. However, it is preferred to connect the hose 18 to the line network of the heating gas. You can do this e.g. B. fill the hose 68 with a liquid which in turn is acted upon by the pressure of the heating medium. To achieve the previously described advantages of additional heating, especially the plate, which has no preheating channel. the hose is preferably charged with the heating gas itself.
  • the balls 63 transmit the forces applied to the plate pack 51, 52, 53 by the hose to the plate 64 of the solid block.
  • each sealing strip 56 or 57 is flexible within limits. By means of these sealing strips it is avoided that the surface pairing 73, 74 of the plate 51 and the surface pairing 75, 76 of the plate 53 have to be manufactured with absolutely exact dimensional accuracy.
  • the middle plate 53 is adjusted by the cylinder-piston unit 70, 71 by means of the piston rod 69. With 72 a stop screw is designated, through which the gap width of the thread treatment chamber can be adjusted during operation. 17a-17c, the heating chamber 2 with the thread inlet 1 is shown in longitudinal and cross-section. It should be mentioned that the thread outlet end of the heating chamber can be designed accordingly.
  • the steam supply channel into the heating chamber 2 is not shown. Saturated steam is used under a pressure of, for. B. 20 bar, so that a saturated steam temperature of about 210 ° C.
  • An outer body 4 (outer cylinder) is placed on the end flange 3 of the heating chamber 2.
  • the outer body 4 is tightly clamped to the end flange 3, but - as will be explained later - a certain relative movement is possible.
  • a seal (not shown here) can be placed between the end flange 3 and the outer body 4.
  • An inner body 6 is located in the inner bore 5 of the outer body 4.
  • This inner body 6 is designed as a cylinder (inner cylinder) with a trapezoidal thread 7.
  • the inner bore 5 of the outer cylinder has a meshing thread.
  • the inner cylinder 6 with its thread is adapted to the inner bore 5 with its thread as tightly as possible.
  • the sealing plate 8 is located at the bottom of the bore 5. It can be the same sealing plate. which is also placed between the end flange 3 and the outer body 4 for the purpose of sealing.
  • the end flange 3 has a hole 9 through which the thread emerges from the heating chamber.
  • a corresponding hole is in the sealing plate 8.
  • the jacket of the bore 5 in the outer body 4 cuts - seen in the projection onto a plane - this hole and has a groove 10 which - in the radial direction - extends through the thread of the bore into extends the core and is aligned in the longitudinal direction with the hole 9 of the end flange.
  • This groove 10 is provided as a thread guide groove (thread groove).
  • the inner cylinder 6 has - as can be seen in FIG. 1 - a corresponding groove 11. This groove 11 only extends to the core of the inner cylinder 6. However, it can also extend into the core.
  • the flanks 12 of the groove 11 are flared in the circumferential direction.
  • the inner cylinder has a handle 13 with which the inner cylinder 6 can be rotated relative to the outer cylinder 4.
  • the thread groove 10 in the inner jacket of the outer body 4 and the groove 11 in the thread and possibly the core of the inner body 6 form a wide threading slot through which the thread can be threaded.
  • the inner wall of the heating chamber 2 runs in a funnel shape towards the hole 9 in the end flange 3.
  • the threading groove 11 in the inner cylinder 6 is rotated into the position (operating position) shown in FIG. 3.
  • the thread groove 10 serving for thread guidance is reduced to a narrow gap, the width of which is so small that the heating gas or saturated steam losses and pressure losses are small.
  • the flanks 14 of the thread groove 10 which are cut into the thread of the outer body, run essentially radially and because the flanks 12 of the threading groove 11 in the inner cylinder are widened in a funnel shape, the thread is twisted along the flanks when the inner cylinder 6 is rotated 14 transported into the thread groove 10 serving the thread guide.
  • the outer body 4 is divided in a plane which lies between the center 15 of the inner cylinder 6 and the thread groove 10 in the outer body.
  • a seal 16 is inserted into the parting plane, which is elastic and thicker than the spacers 17 in the relaxed state.
  • the two halves of the outer body are clamped together by screws 18 after the seal 16 and the spacers 17 have been inserted beforehand. Only then is the thread cut into the bore 5 of the outer body 4. This also provides the seal 16 with a thread. This has the effect that the seal seals the thread with the core and flanks on both sides of the thread groove 10 as a sealing strip.
  • the flange screws in the elongated holes of the end flange 3 are slightly movable.
  • the spacers 17 can be made of a relatively soft metal, so that it is also possible to readjust the seal by pressing the spacers together.
  • the spacers can also be missing. Your advantage is initially only that the seal is set independently of the fitter during assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Une chambre de chauffe pour fils continus est formée de deux parties (98) (99) dont les surfaces supérieures congruentes sont posées l'une sur l'autre et qui délimitent entre elles un canal de fil (10), (19). Des deux côtés du canal de fil s'étendent des bandes étanches (25), (35) insérées dans des gorges qu'elles ne dépassent que faiblement. Autour du canal de fil est créée une zone de chauffe dans laquelle pénètre le gaz de chauffe qui chauffe les deux parties de manière uniforme.

Claims (16)

1. Chambre de chauffage pour fils en mouvement, notamment fils synthétiques, alimentée en vapeur d'eau saturée dont la pression, supérieure à la pression atmosphérique, est notamment de plus de 2 bars, cette chambre étant constituée de deux corps qui sont mobiles l'un par rapport à l'autre, entre une position de fonctionnement et une position d'enfilement, et qui, dans leur position de fonctionnement, sont accolés l'un à l'autre, de manière étanche, par des zones de surface (surfaces de fermeture) à formes sensiblement congruentes, et forment entre eux, dans la région de leurs extrémités, un étroit canal de fil parcouru par le fil et alimenté en vapeur saturée, caractérisée en ce que, sur l'un des corps (4 ou 6 ; 98 ou 99), des bandes d'étanchéité (25) sont agencées de part et d'autre le long du canal de fil (10), avec un écartement transversal prédéterminé, de manière que, dans la position de fonctionnement des deux corps, ces bandes d'étanchéité s'appliquent de manière étanche contre la surface de fermeture de l'autre corps et forment entre elles une zone de chauffage surfacique, comprise entre les deux corps, délimitée par ces bandes d'étanchéité, laquelle enferme le canal de fil sur l'essentiel de sa longueur et est délimitée, dans la région de l'entrée et/ou dans la région de la sortie du fil, par des joints d'étanchéité transversaux.
2. Chambre de chauffage selon la revendication 1, caractérisée en ce que les joints d'étanchéité transversaux sont des bandes d'étanchéité (34).
3. Chambre de chauffage selon la revendication 2, caractérisée par une rainure pour fil dans les joints d'étanchéité transversaux (34).
4. Chambre de chauffage selon la revendication 1, caractérisée en ce que les joints d'étanchéité transversaux sont formés par des élargissements (120) aux extrémités des lèvres d'étanchéité (25).
5. Chambre de chauffage selon l'une des revendications 1 à 4, caractérisée en ce que le canal de fil (10) est formé dans un insert (39, 40, 45) introduit dans une rainure d'insertion (38) dans le corps (6), à laquelle les lèvres d'étanchéité sont adjointes des deux côtés.
6. Chambre de chauffage selon les revendications 1 à 4, caractérisée en ce qu'un canal de fil (10) est formé dans un insert (39) qui est introduit dans une rainure d'insertion (38) de l'un des corps (6), en ce que l'insert (39) est muni, de part et d'autre, de parties arrondies concaves latéralement, en ce que les flancs de la rainure d'insertion possèdent des parties arrondies concaves antagonistes dans lesquelles les lèvres d'étanchéité (25) sont placées, et en ce que l'insert s'appuie, par ses parties arrondies, contre les bandes d'étanchéité.
7. Chambre de chauffage selon l'une des revendications 1 à 6, caractérisée en ce que les bandes d'étanchéité (25) sont placées dans des rainures de la surface de fermeture de l'un des corps (4, 6 ; 98, 99), lesquelles ont une profondeur légèrement moindre que l'épaisseur des bandes d'étanchéité, la différence étant de préférence comprise dans la plage de déformabilité élastique des bandes d'étanchéité.
8. Chambre de chauffage selon la revendication 7, caractérisée en ce que la rainure recevant les bandes d'étanchéité (25) entoure le canal de fil (10) à la manière d'une fenêtre rectangulaire.
9. Chambre de chauffage selon les revendications 1 à 7, caractérisée en ce que les bandes d'étanchéité ont une conformation en fenêtre rectangulaire.
10. Chambre de chauffage selon l'une des revendications 1 à 9, caractérisée en ce que le canal de fil (10) est une rainure dans la surface de fermeture du premier corps (4) et, dans la position de fonctionnement, est fermé par la surface de fermeture de l'autre corps (6).
11. Chambre de chauffage selon les revendications 1 à 9, caractérisée en ce que, dans la position de fonctionnement, le canal de fil (10) est formé par un gradin dans les surfaces de fermeture du premier corps (plaque 51) et par un gradin congruent dans les surfaces de fermeture du deuxième corps (plaque 53).
12. Chambre de chauffage selon l'une des revendications 1 à 11, caractérisée en ce que les bandes d'étanchéité sont élastiques et résistent à la chaleur, et sont de préférence faites d'une matière analogue à un caoutchouc, résistant à la chaleur.
13. Chambre de chauffage selon l'une des revendications 1 à 12, caractérisée en ce que, sur la face dorsale du premier corps (4), c'est-à-dire sur la face éloignée de la face de fermeture, une zone de pression pneumatique est formée par des bandes d'étanchéité (35), cette zone étant sollicitée par la vapeur saturée, ou le gaz de chauffage, se trouvant à la pression de fonctionnement, et étant dotée d'une surface plus grande que la surface de la zone de chauffage comprise entre les surfaces de fermeture et définie par les bandes d'étanchéité (25).
14. Chambre de chauffage selon la revendication 13, caractérisée en ce que les bandes d'étanchéité (35) sont placées dans des rainures.
15. Chambre de chauffage selon la revendication 14 et l'une des revendications 7 à 9, caractérisée en ce que les rainures et les bandes d'étanchéité (25 et 35) qui y sont placées sont agencées dans le corps guide-fil (6), des deux côtés du plan qui, dans le canal de fil (10), est perpendiculaire aux surfaces de fermeture.
16. Chambre de chauffage selon l'une des revendications 1 à 15, caractérisée en ce que, dans la région médiane (19), le canal de fil (10) est élargi à une largeur et/ou profondeur qui est sensiblement plus grande que la largeur ou la profondeur à l'entrée ou à la sortie du fil, la largeur maximale étant l'écartement entre les bandes d'étanchéité (25).
EP84900046A 1982-12-18 1983-12-14 Chambre de chauffe pour fils continus Expired EP0128176B1 (fr)

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
DE3247040 1982-12-18
DE3247040 1982-12-18
DE3247626 1982-12-23
DE3247626 1982-12-23
DE3304752 1983-02-11
DE3304752 1983-02-11
DE19833308251 DE3308251A1 (de) 1983-03-09 1983-03-09 Heizkammer fuer laufende faeden
DE3308251 1983-03-09
DE3312823 1983-04-09
DE3312823 1983-04-09
DE3318645 1983-05-21
DE3318645 1983-05-21
DE3321202 1983-06-11
DE3321202 1983-06-11
DE3326432 1983-07-22
DE3326432 1983-07-22
DE3336101 1983-10-05
DE3336101 1983-10-05

Publications (2)

Publication Number Publication Date
EP0128176A1 EP0128176A1 (fr) 1984-12-19
EP0128176B1 true EP0128176B1 (fr) 1987-07-29

Family

ID=27575890

Family Applications (3)

Application Number Title Priority Date Filing Date
EP84900279A Expired EP0128208B1 (fr) 1982-12-18 1983-12-14 Chambre de chauffe pour fils continus
EP83112564A Expired EP0114298B1 (fr) 1982-12-18 1983-12-14 Chambre de chauffage pour fils en défilement
EP84900046A Expired EP0128176B1 (fr) 1982-12-18 1983-12-14 Chambre de chauffe pour fils continus

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP84900279A Expired EP0128208B1 (fr) 1982-12-18 1983-12-14 Chambre de chauffe pour fils continus
EP83112564A Expired EP0114298B1 (fr) 1982-12-18 1983-12-14 Chambre de chauffage pour fils en défilement

Country Status (5)

Country Link
US (4) US4529378A (fr)
EP (3) EP0128208B1 (fr)
JP (2) JPS60500378A (fr)
DE (3) DE3372503D1 (fr)
WO (2) WO1984002359A1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526225A1 (de) * 1984-07-26 1986-03-06 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Heizkammer fuer laufende synthetische faeden
DE3531679A1 (de) * 1984-09-13 1986-03-27 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Heizkammer fuer laufende faeden
DE3627513C2 (de) * 1986-08-13 1996-09-19 Barmag Barmer Maschf Düse zum Texturieren eines laufenden Fadens
US5008991A (en) * 1987-09-30 1991-04-23 Viscosuisse S.A. Device and process for intermingling a bundle of threads using a turbulent air stream
JP2525471B2 (ja) * 1987-12-25 1996-08-21 東レ株式会社 糸条の処理装置
US5088264A (en) * 1989-07-13 1992-02-18 Barmag Ag Yarn threading apparatus
NL8902381A (nl) * 1989-09-25 1991-04-16 Hoogovens Groep Bv Schachtoven.
DE59005008D1 (de) * 1989-12-01 1994-04-21 Barmag Barmer Maschf Falschzwirnkräuselmaschine zum Kräuseln von synthetischen Fäden.
US5228918A (en) * 1990-10-29 1993-07-20 Gem Gravure Company, Inc. System for marking a continuous substrate
EP0524111B1 (fr) * 1991-07-18 1994-11-17 Icbt Roanne Dispositif pour le traitement thermique de fils en mouvement
FR2693480B1 (fr) * 1992-07-08 1994-08-19 Icbt Roanne Dispositif de chauffage d'un fil en mouvement.
DE59308629D1 (de) * 1992-07-10 1998-07-09 Hoechst Ag Verfahren zum Verstrecken von erhitzten Garnen, damit erhältliche Polyesterfasern sowie deren Verwendung
DE59308918D1 (de) * 1992-07-10 1998-10-01 Hoechst Ag Verfahren zur Wärmebehandlung von sich bewegenden Garnen und Vorrichtung zur Durchführung dieser Behandlung
DE59611388D1 (de) * 1995-08-16 2006-11-16 Saurer Gmbh & Co Kg Texturiermaschine mit pneumatischem Fadenanleger
EP0829562B1 (fr) * 1996-09-12 2004-10-20 Saurer GmbH & Co. KG Machine à texturation avec un guide-fil réglable en hauteur
DE19809600C1 (de) * 1998-03-03 1999-10-21 Heberlein Fasertech Ag Garnbehandlungseinrichtung
TW538153B (en) 1998-03-03 2003-06-21 Heberlein Fibertechnology Inc Process for air-jet texturing of frill yarn and yarn-finishing device and the application thereof
GB9902501D0 (en) * 1999-02-05 1999-03-24 Fibreguide Ltd Air jet
DE10348278A1 (de) * 2003-10-17 2005-05-25 Saurer Gmbh & Co. Kg Verfahren und Vorrichtung zur Behandlung eines laufenden Fadens mit einem gas- und dampfförmigen Behandlungsmedium
EP1675981A1 (fr) * 2003-10-21 2006-07-05 Heberlein Fibertechnology, Inc. Dispositif et procede pour le traitement thermique de fil, notamment pour la texturation par air
CA2682305A1 (fr) * 2007-04-18 2008-10-30 Thomas A. Valerio Procede et systemes de tri et de traitement de materiaux recycles
DE102010022211A1 (de) * 2010-05-20 2011-11-24 Oerlikon Textile Gmbh & Co. Kg Garnschleuse zur Abdichtung einer unter Überdruck stehenden Garnbehandlungskammer
US8839492B2 (en) * 2011-02-10 2014-09-23 Mitsubishi Rayon Co., Ltd. Apparatus for pressure steam treatment of carbon fiber precursor acryl fiber bundle and method for producing acryl fiber bundle
IN2013MU02577A (fr) * 2013-08-05 2015-06-12 Marc Ltd T
WO2018007294A1 (fr) * 2016-07-08 2018-01-11 Oerlikon Textile Gmbh & Co. Kg Dispositif de chauffage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703991A1 (de) * 1976-02-12 1977-08-18 Heberlein & Co Ag Dichtung an einer heizeinrichtung fuer die waermebehandlung von textilfaeden oder -garnen

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB511786A (en) * 1938-02-23 1939-08-24 Edward Kinsella Improvements in or relating to the treatment of filaments or threads
US2351110A (en) * 1942-04-30 1944-06-13 American Viscose Corp Apparatus for liquid treatment of filamentary material
US2529563A (en) * 1946-12-24 1950-11-14 American Viscose Corp Stretch tube orifice
US2708843A (en) * 1950-08-10 1955-05-24 Chemstrand Corp Fluid treating apparatus for strands
US2954687A (en) * 1955-05-03 1960-10-04 Kanegafuchi Boseki Kaisha Continuous treatment of textile material under pressure
US3058232A (en) * 1960-01-20 1962-10-16 Nat Res Corp High vacuum
US3079746A (en) * 1961-10-23 1963-03-05 Du Pont Fasciated yarn, process and apparatus for producing the same
US3298430A (en) * 1962-10-19 1967-01-17 Kodaira Nobuhisa Apparatus of heat treatment for synthetic yarns
US3278430A (en) * 1965-03-29 1966-10-11 Skotch Products Corp Aqueous base lubricant and like material
US3372630A (en) * 1965-06-04 1968-03-12 Houston Schmidt Ltd Apparatus for processing light sensitive film
US3349578A (en) * 1965-08-24 1967-10-31 Burlington Industries Inc Sealing device
GB1155062A (en) * 1965-09-29 1969-06-18 Courtaulds Ltd Apparatus for the production of fancy yarn
US3449549A (en) * 1966-03-29 1969-06-10 Kokusai Electric Co Ltd Heat treatment apparatus for a travelling yarn or yarns
US3534483A (en) * 1968-07-10 1970-10-20 Nobuhisa Kodaira Apparatus for heat-setting synthetic fibre yarns
US3800371A (en) * 1972-07-11 1974-04-02 Du Pont Fluid jet apparatus for processing yarn
US3796538A (en) * 1972-07-11 1974-03-12 Howorth Air Conditioning Ltd Fume extractors for the heaters of textile processing machines
DE2643787B2 (de) * 1976-09-29 1981-02-26 Bayer Ag, 5090 Leverkusen Vorrichtung zur Wärmebehandlung von laufenden Fäden mittels Sattdampf
DE2851967A1 (de) * 1978-01-25 1979-07-26 Heberlein & Co Ag Vorrichtung zum abkuehlen erhitzter textilgarne aus thermoplastischem material
CH623861A5 (fr) * 1978-01-26 1981-06-30 Heberlein & Co Ag
DE2817487C2 (de) * 1978-04-21 1982-12-09 Rieter Deutschland Gmbh, 7410 Reutlingen Vorrichtung zum Einziehen eines laufenden Fadens in eine Texturierdüse
DE2840177A1 (de) * 1978-09-15 1980-03-27 Karlsruhe Augsburg Iweka Verwirbelungsduese
DE3036089A1 (de) * 1979-10-15 1981-04-23 Heberlein Maschinenfabrik Ag, Wattwil Vorrichtung zum abkuehlen erhitzter textilgarne aus thermoplastischem material
JPS56154528A (en) * 1980-04-23 1981-11-30 Toray Industries False twisting processing apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2703991A1 (de) * 1976-02-12 1977-08-18 Heberlein & Co Ag Dichtung an einer heizeinrichtung fuer die waermebehandlung von textilfaeden oder -garnen

Also Published As

Publication number Publication date
JPS60500138A (ja) 1985-01-31
JPS60500378A (ja) 1985-03-22
DE3372793D1 (en) 1987-09-03
EP0114298A1 (fr) 1984-08-01
US4529378A (en) 1985-07-16
US4565524A (en) 1986-01-21
WO1984002359A1 (fr) 1984-06-21
EP0128176A1 (fr) 1984-12-19
US4609344A (en) 1986-09-02
EP0114298B1 (fr) 1987-07-15
DE3372792D1 (en) 1987-09-03
WO1984002358A1 (fr) 1984-06-21
EP0128208A1 (fr) 1984-12-19
DE3372503D1 (en) 1987-08-20
US4560347A (en) 1985-12-24
EP0128208B1 (fr) 1987-07-29

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