Pressure roller device

Abstract

Pressure roller device (15) for following a chuck (17, 18) and a winding sleeve (20) to be wound on the chuck (17, 18) from a winding device (1) for winding a plurality of synthetic threads (F), wherein the threads are wound onto the winding sleeve (22) to form a winding sleeve (20) which is mounted on the chuck (17, 18), wherein the pressure roller device (15) comprises a first pressure roller (15.1) and a second pressure roller (15.2) which act individually and / or jointly on the chuck (17, 18), the winding sleeve mounted on the chuck or on the winding sleeve (20) to be wound, wherein the first pressure roller (15.1) and the second pressure roller (15.2) engage with the circumference (U) of the chuck, spool sleeve or winding sleeve (20) when the chuck (17, 18) is positioned in a winding position (AP), wherein in the winding position (AP) a plurality of synthetic threads (F) are wound onto a winding sleeve (20).

Description

[0001] The invention relates to a pressure roller device for winding a plurality of synthetic threads onto a winding device with a chuck and a winding device with the pressure roller device.

[0002] DE10003513A1 discloses a winding device for winding multiple threads into multiple spools and a method for operating a winding device. In this device, the spools are wound simultaneously on a cantilevered, rotatably mounted chuck. A pressure roller is located around the circumference of the spools. According to the invention, the pressure roller is mounted in two roller carriers that are independently movable such that, during winding, the load on the spools is evened out over the length of the chuck, independent of any bending of the chuck, by moving the pressure roller along the length of the chuck.

[0003] The disadvantage here is that a single pressure roller cannot prevent the formation of transverse vibrations during winding.

[0004] The object of the invention is therefore to provide a pressure roller device with which the occurrence of transverse vibrations during winding can be reduced or at least mitigated.

[0005] Furthermore, it is an object of the invention to provide a winding device with a pressure roller device with which the occurrence of transverse vibrations during winding can be reduced or at least mitigated.

[0006] The problem with regard to the pressure roller device is solved according to the invention with a pressure roller device having the features according to claim 1.

[0007] According to one aspect of the invention, a pressure roller device is provided for following a chuck and a winding sleeve to be wound on the chuck from a winding device for winding a plurality of synthetic threads, wherein the threads are wound onto the winding sleeve to form a winding sleeve which is mounted on the chuck, wherein the pressure roller device has a first pressure roller and a second pressure roller which act individually and / or jointly on the chuck, the winding sleeve mounted on the chuck or on the winding sleeve to be wound, wherein the first pressure roller and the second pressure roller are in engagement with the circumference of the chuck, the winding sleeve or the winding sleeve when the chuck is positioned in a winding position, wherein in the winding position a plurality of synthetic threads are wound to form a winding sleeve.

[0008] The invention provides a pressure roller device comprising a first pressure roller and a second pressure roller, which are simultaneously in contact and engaged with the chuck or the winding sleeve formed on the chuck, respectively, so that no unwanted vibrations transverse to the longitudinal direction of the chuck can develop. The first and second pressure rollers are positioned against the circumference of the chuck or the winding sleeve in the longitudinal direction such that no transverse vibrations can develop when threads are wound onto the winding sleeve. The chuck is supported laterally and simultaneously at two opposing positions by the pressure rollers, which prevents vibrations from forming.

[0009] The two-sided support of the chuck ensures safe winding.

[0010] This ensures that the chuck in operation is protected against vibrations.

[0011] According to a preferred embodiment of the pressure roller device, the first pressure roller and the second pressure roller are each guided around a first pivot point or a second pivot point towards and / or away from the chuck in the winding position, on which a winding sleeve is formed.

[0012] The pivot points allow for optimal adjustment of the pressure roller position. The pressure rollers can be guided into the optimal winding position, for example, by pivoting or by using a pivoting, sliding, and / or linearly guided arm.

[0013] The first and second pressure rollers can be moved back and forth towards or away from the chuck or towards or away from the winding sleeve by means of the pivot point, for example by pivoting, shifting and / or linear guiding.

[0014] According to a further embodiment of the pressure roller device, the first pressure roller or the second pressure roller is brought to the chuck in the winding position at a distance from below to a changing device and / or adjacent to the changing device from above.

[0015] Depending on the design of the winding device, the pressure roller assembly with the first and second pressure rollers is arranged above and / or below the chuck.

[0016] According to a special design of the pressure roller device, the first and / or the second pressure rollers can be moved vertically and / or horizontally towards and away from the chuck by means of a linear guide.

[0017] Alternatively, a vertical method can also be implemented using linear guides, for example with a lifting carriage guide.

[0018] After a further modification of the pressure roller device, the first and / or the second pressure rollers are moved individually, simultaneously and / or successively to the chuck in the winding position.

[0019] Supporting the chuck in the winding position is not necessary throughout the entire winding process. Vibration suppression using both pressure rollers is required during certain periods. For example, transverse vibration can occur due to known resonances, depending on the amount of thread wound onto the winding core and the speed or revolutions per minute (RPM) of the chuck's rotation. The engagement of the first and second pressure rollers is controlled based on known resonances. Additionally, sensors can be installed on the chuck to detect resonant vibrations and / or transverse vibrations, enabling simultaneous, sequential, or individual control of the support and engagement of the first and second pressure rollers.

[0020] According to a special design of the pressure roller device, the first pressure roller and / or the second pressure roller is then guided to the chuck, the spool sleeve or the winding sleeve when critical resonances of the chuck or a critical diameter range of the winding sleeve is traversed.

[0021] Supporting the chuck in the winding position is not necessary throughout the entire winding process. Vibration suppression using the first and second pressure rollers can also be maintained only for a specific period and / or within a specific diameter range of the winding core. For example, when a predetermined quantity of thread is being wound onto the winding core. In other words, both pressure rollers are engaged against the winding core when the core passes through a predetermined period and / or diameter range where transverse vibrations can occur. This can be controlled and / or regulated.

[0022] It is therefore possible to introduce the second pressure roller only in a critical diameter range of the winding sleeve or the chuck where transverse vibrations occur.

[0023] According to a preferred embodiment of the pressure roller device, the first and / or second pressure roller is in contact with the circumference of the chuck, the spool sleeve or the winding sleeve for a predetermined period of time and / or is driven.

[0024] It would also have energy advantages to only drive the respective pressure roller temporarily.

[0025] According to a preferred embodiment of the pressure roller device, the chuck, the sponging sleeve or the winding sleeve is supported by two pressure rollers located below, so that the chuck is guided as if on a roller block.

[0026] The pressure roller device with two pressure rollers works in such a way that, when both pressure rollers are engaged or in contact with the chuck, the spool sleeve or the winding sleeve, the chuck or the winding sleeve runs supported as if on a roller block.

[0027] This arrangement can stabilize the chuck against transverse vibrations.

[0028] The problem with regard to the winding device is solved according to the invention with a winding device having the features according to claim 9.

[0029] According to one aspect of the invention, a winding device is provided with a chuck with a pressure roller device according to at least one of the preceding embodiments.

[0030] The pressure roller device according to the invention is explained in more detail below with reference to exemplary embodiments of the pressure roller device according to the invention and with reference to the accompanying figures.

[0031] They represent: Fig. 1 a schematic longitudinal side view of a winding device for winding a plurality of synthetic threads with a pressure roller device according to the invention, and Fig. 2 a schematic detail side view of the first and second chucks each in a Doff position and in a winding position with the pressure roller device according to the invention, which acts on a winding sleeve in the winding position.

[0032] In Fig. Figure 1 shows a schematic long-side view of a winding device 1 for winding a plurality of synthetic threads F with a pressure roller device 15 according to the invention.

[0033] By means of the pressure roller device 15 according to the invention, the occurrence of transverse vibrations at the chuck can be effectively prevented and the safety of the winding device 1 can be improved.

[0034] The winding device 1 winds a plurality of synthetic threads F, which are extruded from a polymer melt by means of a melt spinning device 2, onto winding cores 20. The melt spinning device 2 is in Fig. 1 is only schematically indicated. The majority of threads F are fed to the winding device 1 in a first thread up to the nth thread. The in Fig. 1 Exemplary embodiment of the winding device 1 can wind a number of n=5 first to nth threads F1- to Fn at n=5 winding points W1 to Wn each.

[0035] The number of threads F1 to Fn and winding points W1 to Wn shown here can also be larger. The number of threads F1 to Fn and winding points W1 to Wn can be up to n=12 and greater.

[0036] The majority of synthetic filaments F extruded by the melt spinning device 2 are wound by the winding device 1 into winding sleeves 20 at a first winding position W1 to nth winding position Wn. The winding sleeves 20 are formed onto spool sleeves 22, which are pushed onto a first chuck 17 or a second chuck 18 and fixed. In a winding position AP, the winding sleeve 20 is then formed onto the fixed spool sleeve 22.

[0037] The winding of the winding sleeve 20 continues until the desired final diameter of the winding sleeve 20 is reached. Then, the first chuck 17 is pivoted into the off position DP and simultaneously the second chuck 18 into the winding position AP. The change from the winding position AP to the off position DP is performed by a turret 16, which rotates the first chuck 17 from the winding position AP to the off position DP and the second chuck 18 from the off position DP to the winding position AP.

[0038] Once the chuck 17 reaches the off position DP, the winding sleeves 20, along with the bobbins 22, are pushed off, and empty bobbins 22 are pushed on and secured. As the chuck 17 moves into the off position DP, the threads F are cut and automatically laid onto the bobbins 22 of the chuck 18. Once the winding sleeves 20 of the second chuck 18 have reached the desired final diameter, the next changeover occurs, and the first chuck 17 returns to the winding position AP.

[0039] In Fig. 1 and Fig. Figure 2 shows the first chuck 17 in the winding position AP with winding sleeves 20 and the second chuck 18 in the off position with spool sleeves 22. In the winding position AP, the spool sleeves 22 are wound into winding sleeves with threads F.

[0040] First, the majority of threads F are guided to a drawing unit 10 of the winding device 1. Here, the threads can be automatically applied to a first galette 11 and a second galette 12. The associated components are not explained in detail here, as they are not essential for understanding the pressure roller device 15 according to the invention.

[0041] The thread F is then guided into the first to nth winding position W1 to Wn by a thread guiding positioning device 4 using a head thread guide 40. Each thread F1 to Fn is assigned a head thread guide 40, whereby the number of first to nth threads F1 to Fn preferably corresponds to the number of winding positions W1 to Wn.

[0042] The first to nth threads F1 to Fn are individually guided to the first to nth winding positions W1 to Wn by the head thread guides 40. Each first to nth winding position W1 to Wn is assigned a head thread guide 40, so that the first to nth threads F1 to Fn are guided to a changing device 14. With the changing device 14, winding sleeves 20 with the threads F are formed at the first to nth winding positions W1 to Wn on the first chuck 17, or the chuck 17, 18, which is positioned in the winding position AP.

[0043] When winding the threads F, the freely projecting first or second chuck 17, 18 can be set into vibration, which can negatively affect the quality of the winding sleeves.

[0044] In Fig. Figure 2 shows an embodiment of the pressure roller device 15 according to the invention.

[0045] The pressure roller assembly 15 comprises a first pressure roller 15.1 and a second pressure roller 15.2, which act simultaneously on the first chuck 17, 18. The first pressure roller 15.1 and the second pressure roller 15.2 are simultaneously engaged with the circumference U of the winding core 20. The first chuck 17, 18 is positioned in the winding position AP. In the winding position AP, a plurality of synthetic threads F can be wound onto a winding core 20.

[0046] In the winding position AP, after changing the first chuck 17, the second chuck 18 is positioned (not shown).

[0047] The first pressure roller 15.1 and the second pressure roller 15.2 can each be guided around a first pivot point 30.1 and a second pivot point 30.2, respectively, towards and / or away from the chuck 17, 18 in the winding position AP. A first guide arm 19.1 and a second guide arm 19.2 can act at the first pivot point 30.1 and the second pivot point 30.2, respectively, acting on the end sections of the respective pressure roller 15.1, 15.2 (see also Fig. 1)

[0048] The first pressure roller 15.1 and the second pressure roller 15.2 are arranged spaced apart from the bottom of the changing device 14.

[0049] According to an embodiment not shown, the first pressure roller 15.1 and / or the second pressure roller 15.2 can be arranged and brought from above adjacent to the changing device 14 to the chuck 17, 18 in the winding position AP.

[0050] According to another embodiment, not shown, the first pressure roller 15.1 and / or the second pressure roller 15.2 can be moved vertically and / or horizontally towards and away from the chuck 17, 18 by means of a linear guide.

[0051] The first pressure roller 15.1 and the second pressure roller 15.2 can be moved individually, simultaneously and / or successively to the chuck 17, 18 or to the winding sleeve 20 in the winding position AP.

[0052] Support for the winding chuck 17, 18 is not permanently necessary. There are predictable situations in which vibrations occur.

[0053] Therefore, the first pressure roller 15.1 and / or the second pressure roller 15.2 can then be guided to the winding chuck 17, 18 or winding sleeve 20 when a predetermined critical diameter range of the winding sleeve 20 is traversed.

[0054] Additionally, the first pressure roller 15.1 and / or the second pressure roller 15.2 can be in contact with the circumference U of the chuck or the winding sleeve 20 and / or driven only for a predetermined period. This allows for additional energy savings.

[0055] With the pressure roller device 15, the chuck 17, 18 or the winding sleeve 20 can be supported by the first and second pressure roller 19.1, 19.2, so that the chuck 17, 18 or the winding sleeve 20 is guided as if on a roller block.

[0056] The pressure roller device 15 is for a winding device 1 as shown in Fig. 1 shown applicable. Reference symbol list: 1 winding device 2 Melting spinning device 4 Thread guiding positioning device 40 head thread guides 10 Stretching machine 11 first galette 12 second galettes 14 Changing device 15 Pressure roller device 15.1-15.2 first to second pressure roller 16 revolvers 17 first chuck 18 second chuck 19.1-19.2 first to second guide arm 20 winding sleeve 22 spool sleeve 24 machine frame 30.1-30.2 first to second pivot point AP winding position DP Offposition F thread F1-Fn first to nth thread W1-Wn first to nth winding position U Scope QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10003513A1

[0002]

Claims

[1] Pressure roller device (15) for following a chuck (17, 18) and a winding sleeve (20) to be wound on the chuck (17, 18) from a winding device (1) for winding a plurality of synthetic threads (F), wherein the threads are wound onto the winding sleeve (22) to form a winding sleeve (20) which is mounted on the chuck (17, 18), wherein the pressure roller device (15) comprises a first pressure roller (15.1) and a second pressure roller (15.2) which act individually and / or jointly on the chuck (17, 18), the winding sleeve mounted on the chuck or on the winding sleeve (20) to be wound, wherein the first pressure roller (15.1) and the second pressure roller (15.2) engage with the circumference (U) of the chuck, spool sleeve or winding sleeve (20) when the chuck (17, 18) is positioned in a winding position (AP), wherein in the winding position (AP) a plurality of synthetic threads (F) are wound onto a winding sleeve (20). [2] Pressure roller device (15) according to claim 1, characterized by , that the first pressure roller (15.1) and the second pressure roller (15.2) are each guided about a first pivot point (30.1) or a second pivot point (30.2) towards and / or away from the chuck (17,18) in the winding position (AP) where a winding sleeve is formed. [3] Pressure roller device (15) according to at least one of the preceding claims 1 or 2, characterized by, that the first pressure roller (15.1) or the second pressure roller (15.2) is brought to the chuck (17, 18) in the winding position from below, spaced apart from a changing device (14) and / or from above adjacent to the changing device (14). [4] Pressure roller device (15) according to at least one of the preceding claims, characterized by , that the first pressure roller (15.1) and / or the second pressure roller (15.2) can be moved vertically and / or horizontally towards and away from the chuck, (17, 18), the spool sleeve (22) or the winding sleeve (20) by means of a linear guide. [5] Pressure roller device (15) according to at least one of the preceding claims, characterized by that the first pressure roller and the second pressure roller are moved individually, simultaneously and / or successively to the chuck, the spool sleeve or the winding sleeve in the winding position. [6] Pressure roller device (15) according to at least one of the preceding claims, characterized by , that the first pressure roller and / or the second pressure roller is then guided to the chuck, the spool sleeve or the winding sleeve when critical resonances of the chuck or a critical diameter range of the winding sleeve is traversed. [7] Pressure roller device (15) according to at least one of the preceding claims, characterized by , that the first pressure roller (15.1) and / or the second pressure roller (15.2) is in contact with the circumference (U) of the chuck or the winding sleeve (20) for a predetermined period of time and / or is driven. [8] Pressure roller device (15) according to at least one of the preceding claims, characterized by, that the chuck (17, 18), the spool sleeve (22) or the winding sleeve (20) is supported by the first and second pressure rollers, so that the chuck or the winding sleeve is guided as if on a roller block. [9] Winding device with a chuck (17, 18) with a pressure roller device (15) according to at least one of the preceding claims 1 to 8.

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