Covering device for at least partially delimiting through opening of godet cartridge

Abstract

The invention relates to a covering device for at least partially delimiting a through-opening of a godet cartridge in order to thermally insulate a godet (4) for conveying a plurality of synthetic threads (5), the through-opening (2) defining a first opening surface, the synthetic threads (5) being introduced into and / or out of the godet cartridge (3) through the through-opening (2), and the first opening surface defining a second opening surface, the synthetic threads (5) being introduced into and / or out of the godet cartridge (3) through the through-opening (2). Wherein the covering device (1) has a cover plate (6) which can be moved between an application position (6.1) for applying the synthetic threads (5) to the godet roller (4) and a covering position (6.2) for partially covering the through-opening (2), the opening surface being divided by the cover plate (6) into a plurality of thread guide grooves (7) in the covering position (6.2). The invention also relates to a godet cartridge (3) having a through-opening (2), having the above covering device.

Description

Technical Field

[0001] The invention relates to a covering device which at least partially delimits a through-opening of a godet cassette and to the godet cassette. Background Art

[0002] Many synthetic yarns can be conveyed by means of godet rollers. Such godet rollers are used, for example, in melt spinning equipment for producing fully drawn yarns and / or partially drawn yarns for engineering applications and / or textile applications. In such melt spinning equipment, more than two godet rollers are usually provided. The yarns are drawn and / or relaxed, in particular during their conveying, which can also be performed between two godet rollers. For this reason, the yarns are preferably temperature-controlled, in particular heated, by the godet rollers. In order to limit the heat loss during the temperature control of the yarns, at least one godet roller is arranged in a godet roller box, and the godet roller box is used to achieve the heat insulation of the space formed in the godet roller box and thus the godet rollers and the yarns guided in an adjacent manner. The godet roller box has corresponding walls for heat insulation. The godet roller box, in particular its wall, has at least one through opening, through which these synthetic yarns are introduced into the godet roller box and / or discharged from the godet roller box. The through opening defines the opening surface.

[0003] However, heat losses, for example due to convection and / or radiation, can be achieved via the through-openings. Air is also transported during the operation of the godet box due to the movement of the thread, so that in particular "cold" air is introduced from outside the godet box through the thread into the godet box. Such cold air cools in particular the godets which are arranged in the vicinity of the through-openings and therefore have to be heated more strongly in order to achieve the desired thread properties. Covering devices for at least partially delimiting the through-openings of the godet box are therefore known to be used to at least mitigate the heat losses.

[0004] DE102014012834A1 discloses a godet box having an inlet and an outlet, wherein the inlet and the outlet each have a movable opening for at least partially defining the respective inlet or outlet.

[0005] In addition, the threads are redirected to different degrees on their way to the godet box and in particular in the melt spinning plant by corresponding separating thread guides in order to reduce the distance between the threads, wherein the friction on the separating thread guides thus acts on the threads to different degrees. These different degrees of friction lead to different thread properties. Summary of the invention

[0006] The object of the present invention is therefore to provide a covering device for at least partially delimiting a through opening of a godet cassette and such a godet cassette, which reduce or overcome the problems of the prior art. In particular, heat losses during operation of the godet cassette should be minimized or at least further reduced. In addition, it should be possible to produce threads having particularly similar thread properties.

[0007] This object is achieved by a covering device for at least partially delimiting a through-opening of a godet cassette.

[0008] Specifically, the object is achieved by a covering device for at least partially delimiting a through opening of a wire roller box (in order to thermally insulate a wire roller for conveying a plurality of synthetic threads), wherein the through opening defines a first opening surface, wherein the synthetic threads can be introduced into the wire roller box and / or conveyed out of the wire roller box through the through opening, wherein the covering device has a cover plate, which can be moved between an application position for applying the synthetic threads to the wire roller and a covering position for partially covering the through opening, wherein in the covering position the opening surface is divided into a plurality of wire guide grooves by the cover plate.

[0009] The open face is subdivided into a plurality of wire guide grooves so that the open face area between the wires can also be covered by the cover plate. Therefore, the covered part of the open face can be increased as a whole. The air transported along each wire can also be stripped by the cover plate between two wires, that is, it is prevented from passing through the cover plate. Therefore, by using a covering device with a cover plate in its covering position, it is possible to obtain a very small heat loss of the godet box associated with the covering device. The godet box can be opened with very low energy consumption when the cover plate of the relevant covering device is arranged in its covering position, wherein the desired wire performance can still be obtained despite this. In addition, the wire can be guided in the wire guide groove with friction contact. Therefore, the uneven friction load that appears before or after the covering device in the wire path can be compensated with the covering device, so that all the wires then experience substantially the same friction load during its production period by means of a machine with a covering device, preferably a melt-spinning device. Substantially uniform friction load can cause the wires to be produced in parallel with particularly similar wire performance, i.e., particularly large uniformity. The covering device can therefore perform a dual function, namely, on the one hand, reducing heat losses and, on the other hand, homogenizing the friction loads.

[0010] In a preferred embodiment of the covering device, the through opening and the cover plate define a second opening surface in the covering position. The second opening surface is smaller than the first opening surface. The second opening surface is generated by the sum of the cross sections of the wire guide grooves.

[0011] It may be advantageous if each wire guide groove has a 0.3 mm 2 Up to 0.7mm 2 , preferably 0.4mm 2 Up to 0.6mm 2 , particularly preferably 0.5 mm 2With such a large value, it is possible to achieve a minimum heat loss of the godet cassette together with the cover plate of the associated covering device in its covering position. The exact value of the opening width is preferably selected with respect to the diameter of the thread to be guided through the thread guide groove. Blockages of the thread guide groove caused by the thread itself can be safely avoided with such an opening width value.

[0012] Preferably, the cover plate has many wire guides, whereby one of the wires is guided into and out of the wire guide box while contacting each wire guide. Thus, the wire guide groove is formed by the wire guide. The wire guide is preferably in the form of a separate component, so that a material particularly suitable for wire guiding can be simply adopted. In addition, standardized wire guides can therefore be adopted, which can be obtained very cost-effectively because of their large-scale production. In contrast, it is also conceivable that the wire guide groove is added to the cover plate as a recess. The wire guide is preferably in a U-shaped shape. The curved contact surface for the wire is then produced on the wire guide. In contrast, it is also conceivable that the use of wire guides each having a planar contact surface for the wire. More preferably, the wire guides are arranged in rows. The wires can then be guided in parallel through the through opening by the wire guides, which is advantageous because the wires can also be guided in parallel to each other by adjacently arranged wire guide rollers. The wire guide preferably has a ceramic material and / or is made of a ceramic material. Such a ceramic material is particularly resistant to wire wear, thereby obtaining a long service life of the wire guide.

[0013] According to another embodiment of the covering device, the cover plate has a limiting plate for partially defining the through opening. The wire guide is advantageously arranged and / or formed on the limiting plate. Instead of the cover plate and the limiting plate, a two-piece cover plate can be mentioned. In particular, the limiting plate is detachably connected to the cover plate, for example, by a threaded connection, so that the wire guide can be positioned on the cover plate or the limiting plate in different positions. The precise position of the wire guide is then preferably set during the adjustment period of the covering device. During such an adjustment period, the precise opening width of the second opening face or the wire guide groove is set.

[0014] According to a further particularly preferred embodiment of the covering device, the cover plate and / or the limiting plate can be moved in translation and / or pivoting relative to the through-opening. In this case, purely linear translational movements, purely pivoting or rotational movements or more complex movement patterns consisting of a translational and rotational movement are conceivable. The cover plate and / or the limiting plate can also be moved in translation along a curved path.

[0015] More preferably, the cover plate and / or the limiting plate can be moved manually and / or by an actuator. Due to the use of an actuator, it is allowed that the silk thread is automatically applied to the covering device and also to adjacent units such as a godet. When it is also intended to manually perform the operation applied to the nearby units of the covering device such as a godet, it is preferably to utilize manual movement. Preferably, the through opening can be completely closed by the covering device, especially the cover plate and / or the limiting plate, for example in the production interruption when the silk thread is not currently guided through the through opening, the heat loss of the godet box can then be further alleviated. In order to be able to completely close the through opening, for example the cover plate and / or the limiting plate can be moved to another position, i.e. the closed position, subsequently.

[0016] Advantageously, the cover plate and / or the limiting plate can be moved by the motion device. The motion device has a lever arm, which is rotatably connected to the holder of the covering device that can be or is firmly connected to the godet box. The lever arm has a protruding end. The cover plate and / or the limiting plate are rotatably connected to the lever arm at a specific distance from the protruding end. Due to the movement of the lever arm, the cover plate and / or the limiting plate can then move between the application position and the covering position. In order to move the lever arm, it is preferably contacted by the operator at its protruding end. Utilizing this lever arm, a simple and cost-effective motion device can be produced.

[0017] More preferably, the axis of rotation can be arranged or is arranged between the lever arm and the holder and between the lever arm and the cover plate and / or the limiting plate parallel to a plane extending through the through opening. Thus, the motion device can be further simplified. In particular, the axis of rotation is also arranged parallel to the wire movement plane, which is formed by the wires guided parallel to each other. The wire movement plane is the wire movement plane formed near the covering device during the wire guidance.

[0018] In another embodiment of the covering device, the movement device has a resilient preload, in particular a leaf spring, by means of which the cover plate and / or the limiting plate can be held and / or pivoted in the application position and the covering position, respectively. In particular, corresponding stops are provided, against which the cover plate and / or the limiting plate are pressed by the preload in the application position and the covering position. The movement device is preferably configured in such a way that a single resilient preload is sufficient for this. The movement of the cover plate and / or the limiting plate between the application position and the covering position can be supported by the resilient preload in a partial area of ​​the entire movement path between the application position and the covering position. Preferably, the movement of the cover plate and / or the limiting plate between the application position and the covering position is supported in at least one direction by the resilient preload.

[0019] In another embodiment of the covering device, the godet is arranged near the through opening and / or at the through opening in the godet box. On the side of the through opening opposite to the cover plate and / or the limit plate, the wind deflector is connected to the godet box in the godet box and protrudes from the godet box wall to the godet. Preferably, the silk thread can be moved to the wind deflector by the movement of the cover plate and / or the limit plate from the application position to the covering position. The silk thread can then be moved through the wind deflector in a very tight manner with the cover plate and / or the limit plate in the covering position, thereby obtaining a particularly smooth movement of the silk thread.

[0020] It may be advantageous that the wire can be redirected by contact with the cover plate, the limit plate and / or the wire guide through a deflection angle of 1 ° to 30 °, preferably 3 ° to 20 °, during the movement of the wire guide roller in its covering position with the cover plate and / or the limit plate. The cover plate, the limit plate and / or the wire guide have corresponding profiles for wire guiding, so that the cover plate, the limit plate and / or the wire guide are contacted by the wire in the corresponding area respectively. In the wire path in front of the covering device, the wire moves along the first straight line, and in the wire path after the covering device, the wire moves along the second straight line, wherein the deflection angle is formed between the first straight line and the second straight line. Utilizing the value of the deflection angle, the desired high level consistency of the wire performance can be obtained in a reliable manner.

[0021] This object is also achieved with the aid of a godet box.

[0022] More precisely, the object is achieved with a godet cassette with a through opening, which has a covering device as described above, with the above-mentioned advantages. The covering device is preferably arranged on the outside of the godet cassette. The covering device is thus easily accessible and can also be manually operated in a simple manner. The through opening preferably has a width in cross section that is much greater than the depth, so that the threads can move in parallel along the width at a specific mutual spacing through the through opening.

[0023] The through opening is configured or can be configured to be together with the godet box, in particular with its wall, in particular also with the cover, which can be opened and closed and is associated with the wall of the godet box. When the cover is in opening, for example, the through opening can be opened laterally, so that the silk thread for applying to the godet can be introduced into the inside of the godet box laterally through the opening thus produced, and after being introduced, it moves through the through opening. Then, the cover can be closed again and the through opening is fully defined all around. After the cover is closed or also before closing, the cover plate and / or the limiting plate can then be moved into the covering position so as to guide the silk thread into one of the silk thread guide grooves respectively subsequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Preferred embodiments are described below with reference to the accompanying drawings, in which:

[0025] Figure 1a Schematically shows an embodiment of a covering device with a cover plate and / or a limiting plate in its applied position in a three-dimensional view,

[0026] Figure 1b An embodiment of a covering device with a covering plate and / or a limiting plate in its applied position is schematically shown in a plan view of the covering plate and / or limiting plate,

[0027] Figure 2a Schematically shows an embodiment of a covering device with a cover plate and / or a limiting plate in its covering position in a three-dimensional view,

[0028] Figure 2b An embodiment of a covering device with a covering plate and / or a limiting plate in its covering position is schematically shown in a plan view of the covering plate and / or limiting plate,

[0029] Figure 3a A portion of an embodiment of a godet cassette with a cover plate and / or a limiting plate in its applied position is schematically shown in a side view, and

[0030] Figure 3b Schematically shown in side view Figure 3a A portion of an embodiment of a godet cassette with the cover plate and / or the limiting plate in its covering position.

[0031] Reference numerals list

[0032] 1 Covering Equipment

[0033] 1.V connection area

[0034] 2 Through opening

[0035] 3 Godet Roller Box

[0036] 3.W The wall of the wire guide roller box 3

[0037] 4 Godet Rollers

[0038] 5 Silk thread

[0039] 6 Cover

[0040] 6.1 Application location

[0041] 6.2 Coverage Location

[0042] 7 Wire guide groove

[0043] 8 Wire guide

[0044] 9 Limiting plate

[0045] 10 Sports Equipment

[0046] 11 Lever arm

[0047] 11. G handle

[0048] 12. Retaining parts

[0049] 13 Protruding end of lever arm 11

[0050] 14 Axis of rotation between lever arm 11 and holder 12

[0051] 15 Axis of rotation between the lever arm 11 and the cover plate 6 and / or the limiting plate 9

[0052] 16 Rebound preload device

[0053] 17 Wind direction guide

[0054] 18 Wire guide roller

[0055] 19 Separation wire guide

[0056] 20 Suction device

[0057] 21 Rack

[0058] α Turn angle DETAILED DESCRIPTION

[0059] Figures 1a to 2b Both show a covering device 1 for at least partially delimiting a through opening 2 of a godet box 3 in order to thermally insulate godets 4 for conveying a plurality of synthetic threads 5 . Figure 3a and Figure 3b A godet box 3 and a covering device 1 are shown, wherein the covering device 1 is in this case connected to the godet box 3 and thus to a part of the godet box 1. In addition, Figure 3a and Figure 3b Some units are shown which are arranged upstream of the covering device 1 in the wire path of the wire 5 .

[0060] The through opening 2 defines a first opening face. A plurality of synthetic threads 5 can be introduced into the godet box 3 and / or removed from the godet box 3 through the through opening 2. The covering device 1 has a cover plate 6, which can be moved between an application position 6.1 for applying a plurality of synthetic threads 5 to the godet roller 4 and a covering position 6.2 for partially covering the through opening 2. In the covering position 6.2, the opening face is subdivided into a plurality of thread guide grooves 7 by the cover plate 6.

[0061] The covering device 1 has a connection region 1.V, by means of which the covering device 1 can be connected to the godet box 3, for example by means of a threaded connection. It is conceivable that the through-opening 2 is also at least partially defined by the connection region 1.V in the state in which the covering device 1 is connected to the godet box 3. Mechanically, the connection region 1.V is therefore part of the covering device 1, while functionally the connection region 1.V is intended to be associated with the wall 3.W of the godet box 3 in the state in which the covering device 1 is connected to the godet box 3.

[0062] From one side of the cover plate 6, a plurality of webs, between which thread guide grooves 7 can be formed, protrude. When the cover plate 6 is in the application position 6.1, the webs face the through-opening 2. When the cover plate 6 is in the covering position 6.2, the projecting ends of the webs are arranged in the vicinity of the wall 3.W of the godet box 3, in particular in contact with the wall 3.W. However, it is also conceivable that a spacing is formed between the cover plate 6, in particular its webs, and the wall 3.W in the thread running direction when the cover plate 6 is in the covering position 6.2.

[0063] The through opening 2 and the cover plate 6 in the covering position 6.2 define a second opening surface. The second opening surface is smaller than the first opening surface. Therefore, heat losses caused by radiation and / or convection through the covering device 1 with the cover plate 6 in the covering position 6.2 are successfully reduced.

[0064] Each wire guide groove 7 has a width of 0.3 mm. 2 Up to 0.7mm 2 , preferably 0.4mm 2 Up to 0.6mm 2 , particularly preferably 0.5 mm 2 The opening width is intended in particular to mean the value of the cross-sectional area of ​​the respective thread guide groove 7, i.e. the area through which a thread 5 and also air can be guided into or out of the godet box 3. The cross-sectional area of ​​the respective thread guide groove 7 has, for example, a rectangular or square shape, wherein two corners are preferably rounded, wherein the radius is further preferably selected such that a semicircular shape results on one side of the rectangle or square.

[0065] The cover plate 6 has a plurality of thread guides 8, by means of which one of the threads 5 can be guided into or out of the godet box 3 while contacting the respective thread guide 8. The contact with the respective thread guide 8 occurs in particular when the cover plate 6 is in the covering position 6.2. Thus, the contact occurs during the movement of the cover plate 6 from the application position 6.1 to the covering position 6.2. Figures 1a to 2b , a series of U-shaped wire guides 8 are arranged on one side of the cover plate 6 , and in particular are mounted on the cover plate 6 in this case.

[0066] The cover plate 6 has a limiting plate 9 for partially delimiting the through opening 2. The wire guide 8 is arranged and / or formed on the limiting plate 9. Instead of the cover plate 6 and the limiting plate 9, a two-piece cover plate 6 can also be mentioned. In particular, the limiting plate 9 is detachably connected to the cover plate 6, for example by a threaded connection, so that the wire guide 8 can be positioned on the cover plate 6 or the limiting plate 9 at different positions. The exact position of the wire guide 8 is then preferably set during the adjustment of the covering device 1. During such an adjustment process, the exact opening width of the second opening face or of the wire guide 7 is set.

[0067] The cover plate 6 and / or the limiting plate 9 can be moved translationally and / or pivotally relative to the through-opening 2. By means of the embodiment shown in this case, in particular a translational movement along a curved path is permitted. When the translational movement is performed along a linear path, it is also referred to as a sliding cover plate.

[0068] The cover plate 6 and / or the limiting plate 9 are arranged according to Figures 1a to 3b Can be moved manually. In particular, a corresponding handle 11.G is provided for this. Alternatively, it is also conceivable that the cover plate 6 and / or the limiting plate 9 can be moved by an actuator. It is conceivable that the through-opening 2 can be completely closed by the covering device 1, in particular the cover plate 6 and / or the limiting plate 9.

[0069] The cover plate 6 and / or the limiting plate 9 can be moved by means of a movement device 10. The movement device 1 has a lever arm 11, which is rotatably connected to a holder 12 of the covering device 1 which is firmly connected or can be firmly connected to the godet box 3. The lever arm 11 has a protruding end 13. The cover plate 6 and / or the limiting plate 9 are rotatably connected to the lever arm 11 at a certain distance from the protruding end 13. The handle 11.G is connected to the protruding end 13 or is formed at this position. In this case, two lever arms 11 arranged at a certain distance from each other are provided to achieve a more robust movement of the cover plate 6 and / or the limiting plate 9. The holder 12 is firmly connected to the connection area 1.V, or the holder 12 and the connection area 1.V are configured in an integral manner.

[0070] The axes of rotation 14, 15 between the lever arm 11 and the holder 12 and between the lever arm 11 and the cover plate 6 and / or the limiting plate 9 are arranged or can be arranged parallel to a plane extending through the through-opening 2. Due to the corresponding positioning of the axes of rotation 14, 15, the above-mentioned translational movement of the cover plate 6 and / or the limiting plate 9 along a curved path is allowed. Due to the different positioning of the axes of rotation 14, 15, a translational and rotational movement of the cover plate 6 and / or the limiting plate 9 can be achieved. It is also conceivable to have a pure pivoting movement of the cover plate 6 and / or the limiting plate 9, wherein the pivot axis of the cover plate 6 and / or the limiting plate 9 would then be arranged parallel to or perpendicular to the plane extending through the through-opening 2.

[0071] The movement device 10 has a resilient preload device 16, in particular a leaf spring, by means of which the cover plate 6 and / or the limiting plate 9 can be held and / or pivoted in the application position 6.1 and the covering position 6.2, respectively. In the covering position 6.2, the cover plate 6 and / or the limiting plate 9 are pressed, for example, against the wall 3.W or the connecting region 1.V of the godet roller box 3 by the preload device 16. Due to the wall 3.W of the godet roller box 3 or due to the connecting region 1.V, a stop for the cover plate 6 and / or the limiting plate 9 is formed. Another stop for holding the cover plate 6 and / or the limiting plate 9 in the application position 6.1 is formed by the retaining member 12 itself or also by the connecting region 1.V in the region of the retaining member 12. The two stops are preferably arranged on opposite sides of the through-opening 2. It is also conceivable to provide a stop not for the cover plate 6 and / or the limiting plate 9, but for the lever arm 11.

[0072] like Figure 3a and Figure 3b The godet roller 4 shown is arranged adjacently on and / or at the through opening 2 in the godet roller box 3. On the side of the through opening 2 opposite to the cover plate 6 and / or the limiting plate 9, a wind direction guide 17 is connected to the godet roller box 3 in the godet roller box 3. The wind direction guide 17 protrudes from the wall 3.W of the godet roller box 3 toward the godet roller 4. The silk thread 5 can be moved to the wind direction guide 17 when the cover plate 6 and / or the limiting plate 9 move from the application position 6.1 to the covering position 6.2. The wind direction guide 17 is directly connected beside the through opening 2, such as being threadedly connected to the wall 3.W of the godet roller box 3. The wind direction guide 17 is preferably in the shape of a metal plate. The wind direction guide 17 preferably has metal and / or is made of metal.

[0073] like Figure 3b As shown, during the period when the wire 5 moves toward the wire guide roller 4 by contacting the cover plate 6, the limiting plate 9 and / or the wire guide 8 while the cover plate 6 and / or the limiting plate 9 are in their covering position 6.2, the wire 5 can be redirected by a redirection angle α of 1° to 30°, preferably 3° to 20°. The wire 5 can be guided to the cover plate 6 and / or the limiting plate 9 by the wire guide roller 18. Between the cover plate 6 and / or the limiting plate 9 and the wire guide roller 4 and between the cover plate 6 and / or the limiting plate 9 and the wire guide roller 18, the wire 5 is guided along a plurality of straight lines, between which redirection angles α are formed. Unlike the wire guide roller 4, the wire guide roller 18 cannot be heated. However, it is also conceivable to replace the wire guide roller 18 with another heatable roller. The wire guide roller 18 is arranged outside the wire guide roller box 3. The wire guide roller box 3 is at Figure 3a and Figure 3b In particular, a plurality of godets which can be wound one or more times are arranged in the godet box 3, in particular in the inner cavity of the godet box 3. The wall 3.W is also only partially shown in this case. When the cover plate 6 and / or the limiting plate 9 are, for example, arranged according to Figure 3aWhen arranged in its application position 6.1, the thread 5 can lie against the thread guide roller 18 and the thread godet 4, in particular extending laterally into the through-opening 2. The thread 5 is ultimately moved past the cover plate 6 and / or the limiting plate 9 in its application position 6.1 without contacting the cover plate 6 and / or the limiting plate 9. Figure 3b When arranged in its covering position 6 . 2 , a plane extending tangentially to the cover of the thread guide roller 18 and of the godet roller 4 extends through the cover plate 6 and / or the limiting plate 9 .

[0074] In the wire path in front of the wire guide roller 18, according to Figure 3a and Figure 3b A separating thread guide 19 with an adjacent suction device 20 is arranged. In particular, the separating thread guide 19 and the suction device 20 form a so-called thread cutting device. In particular, in the event of a problem with a component downstream of the thread cutting device in the thread path, such as the covering device 1 or the thread guide roller 4, the separating thread guide 19 can be moved to the frame 21 and thus to the suction device 20, wherein the thread 5 in the vicinity of the suction device 20 can be separated, in particular by a blade arranged at this location but not shown, and guided into the suction device 20 by the suction airflow generated by the suction device 20.

[0075] The separating guide 10 is used in particular in a melt spinning apparatus, in which the covering device 1 and the godet box 3 are preferably inserted, to adjust the threads 5 which are spun out through the spinning nozzle at a distance from each other to a distance from each other, whereby the threads 5 are intended to be guided through the godet 4. In this case, the outer threads 5 are deflected more strongly than the inner threads by the separating guide 19. The different friction loads which occur can then be advantageously compensated by the covering device 1, so that threads 5 with particularly identical thread properties can be produced, in particular, by the melt spinning apparatus using the covering device 1. The melt spinning apparatus has a winder for winding the threads 5 downstream of the godet box 3.

Claims

1. A covering device (1) for at least partially delimiting a through opening (2) of a godet cassette (3) for thermally insulating a godet (4) for conveying a plurality of synthetic threads (5), wherein: The through opening (2) defines a first opening surface, wherein the plurality of synthetic threads (5) can be introduced into the guide roller box (3) and / or fed out from the guide roller box (3) through the through opening (2), wherein the covering device (1) has a cover plate (6), which can move between an application position (6.1) and a covering position (6.2), wherein the application position (6.1) is used to apply the plurality of synthetic threads (5) to the guide roller (4), and the covering position (6.2) is used to partially cover the through opening (2), wherein in the covering position (6.2) the opening surface is divided into a plurality of thread guide grooves (7) by the cover plate (6).

2. The covering device (1) according to claim 1, characterized in that The through opening (2) and the cover plate (6) define a second opening surface in the covering position (6.2), wherein the second opening surface is smaller than the first opening surface.

3. Covering device (1) according to at least one of claims 1 or 2, characterized in that Each wire guide groove (7) has a 0.3 mm 2 Up to 0.7mm 2 , preferably 0.4mm 2 Up to 0.6mm 2 , particularly preferably 0.5 mm 2 opening width.

4. Covering device (1) according to at least one of the preceding claims, characterized in that The cover plate (6) has a plurality of thread guides (8), by means of which one of the threads (5) can be guided into the godet box (3) or out of the godet box (3) while contacting the respective thread guide (8).

5. Covering device (1) according to at least one of the preceding claims, characterized in that The cover plate (6) has a limiting plate (9) for partially delimiting the through-opening (2), and / or the wire guide (8) is arranged and / or formed on the limiting plate (9).

6. Covering device (1) according to at least one of the preceding claims, characterized in that The cover plate (6) and / or the limiting plate (9) can be moved in translation and / or pivotally relative to the through opening (2).

7. Covering device (1) according to at least one of the preceding claims, characterized in that The cover plate (6) and / or the limiting plate (9) can be moved manually and / or by an actuator, and / or the through opening (2) can be completely closed by the covering device (1), in particular by means of the cover plate (6) and / or the limiting plate (9).

8. Covering device (1) according to at least one of the preceding claims, characterized in that The cover plate (6) and / or the limiting plate (9) can be moved by a moving device (10), wherein the moving device (10) has a lever arm (11) of the covering device (1), the lever arm (11) is rotatably connected to a retaining member (12), the retaining member can be connected or firmly connected to the wire guide roller box (3), wherein the lever arm (11) has a protruding end (13), wherein the cover plate (6) and / or the limiting plate (9) is rotatably connected to the lever arm (11) at a specific distance from the protruding end (13).

9. Covering device (1) according to claim 8, characterized in that The rotation axis (14, 15) is arranged or can be arranged parallel to a plane extending through the through-opening (2) between the lever arm (11) and the retaining element (12) and between the lever arm (11) and the cover plate (6) and / or the limiting plate (9).

10. Covering device (1) according to at least one of claims 8 or 9, characterized in that The movement device (10) has a resilient preload device (16), in particular a leaf spring, by means of which the cover plate (6) and / or the limiting plate (9) can be held or pivoted in the application position (6.1) and the covering position (6.2), respectively.

11. Covering device (1) according to at least one of the preceding claims, characterized in that The wire guide roller (4) is arranged in the wire guide roller box (3) near the through opening (2) and / or at the through opening (2), wherein, on the side of the through opening (2) opposite to the cover plate (6) and / or the limiting plate (9), a wind direction guide (17) is connected to the wire guide roller box (3) in the wire guide roller box (3) and protrudes from the wall (3.W) of the wire guide roller box (3) toward the wire guide roller (4) and / or the wire thread (5) can be moved toward the wind direction guide (17) by the movement of the cover plate (6) and / or the limiting plate (9) from the application position (6.1) to the covering position (6.2).

12. Covering device (1) according to at least one of the preceding claims, characterized in that When the cover plate (6) and / or the limiting plate (9) are in their covering position (6.2), the thread (5) can be redirected through a redirection angle (α) of 1° to 30°, preferably 3° to 20°, by contacting the cover plate (6), the limiting plate (9) and / or the thread guide (8) during its movement toward the thread guide roller (4).

13. A godet cassette (3) with a through opening (2), comprising a covering device (1) according to at least one of claims 1 to 12.

Images