JP7179772B2 - Method for operating winder and winder - Google Patents

Description

The present invention provides a method for operating a winder in a melt spinning process, as defined in the preamble of claim 1, and a method for winding a plurality of yarns into a package, as defined in the preamble of claim 7. relating to a winding machine for

When producing composite yarns in a melt spinning process, the yarns produced in groups at the spinning station are wound into packages in parallel alongside each other. Special winding machines are used for this purpose, which have a long protruding winding spindle in order to accommodate a plurality of packages wound parallel to one another. Ten, twelve or even sixteen packages can then be wound simultaneously on the winding spindle. In order to be able to wind the yarn continuously produced during melt spinning into a package without interruption, the winder has two winding spindles arranged parallel to each other and offset by 180°. and both winding spindles are held on a rotatable winding turret. The winding spindle is alternately guided by the winding turret between a working area for winding the package and a change area for removing the wound package. A plurality of winding points are assigned to the winding spindle in the operating area, so that a yarn can be wound into a package at each winding point. Such a winder is known, for example, from WO 2005/035415.

In known winders, full packages held in the change area are usually removed by an operator. For this purpose, a control command is triggered by an operator via an operating panel on the winding machine, whereby, for example, a displacement device can be activated for pushing the packages around the winding spindle. At this time, however, it must be ensured that the winding of the yarn on the winding spindle held in the working area remains unimpeded.

Furthermore, further operating steps must be carried out on the winding machine by the operator, especially at the start of the process or after a process interruption, for example due to yarn breakage. In that case, triggering a plurality of control commands via an operating panel on the winding machine for activating the drive device and further auxiliary devices for the purpose of rigging and threading the yarn group into the winding point. can be done. When operating the winding machine, the correct operating behavior of the operator is therefore of particular concern in order to avoid faulty control.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to improve a method for operating a winding machine and a winding machine of the type mentioned at the outset, in such a way that all operating steps originating from the operator can be carried out without problems. It is to be.

Another object of the present invention is to ensure that the process can be performed by qualified personnel when operating the winder.

This problem is solved according to the invention by a method for operating a winding machine with the features of claim 1 and by a winding machine with the features of claim 7 .

Preferred developments of the invention are defined by the features and feature combinations of the respective dependent claims.

The invention is based on the recognition that the operating steps that an operator has to carry out on a winding machine require different qualifications. For example, removal of a full package from a winding spindle by an operator does not require special manual dexterity. The packages are preferably received and transported by doffing wagons. During threading at the start of the process, the operator must guide the hand injector, which collects the continuously running thread group and directs it to the waste bin. The operator then has to carry out various manipulations with the hand injector in order to separate and thread the yarn at the winding point. In order to ensure that the respective operating steps in the winding machine can be carried out quickly and properly, according to the invention the operator has to carry out a prior personal confirmation in order to issue the control commands. For this purpose, the operating panel has identification means for personal identification of the operator. This ensures that each operating step in the winding machine can be carried out properly and quickly by a qualified operator. Furthermore, there is the possibility to assign each operating step to the corresponding operator.

For rapid and problem-free personal identification, in a variant of the method which has proven to be particularly favorable, the operator uses an RFID transponder with a personal identification code, which is used in the operation Read via a reader on the panel. The identification means on the operating panel therefore comprise a reader, for example a scanner, in order to be able to read the RFID transponder assigned to the operator.

In order to ensure that the corresponding operating steps can be carried out properly and quickly, in a particularly preferred variant of the method the personal identification code is compared inside the machine control with a plurality of stored personal identification codes. Only when the read personal recognition code matches one stored personal recognition code, the control instruction is permitted. In this way, erroneous control of the winding machine by an unqualified person can be avoided.

Fundamentally, however, there is also the possibility of storing the personal identification code when issuing the control command. In this way, the operating steps carried out on the winding machine can be assigned unambiguously to one operator.

In particular, in order to allow several sequences of control commands to be carried out by one operator, a preferred variant of the method allows several control commands within a certain time interval after reading the personal identification code. do. In this way, time-limited operating steps in the winding machine, which normally require several control commands, can be carried out without problems by a single operator.

Only after a time interval has elapsed does the operator have to repeat the personal identification in order to issue another control command.

The winding machine according to the invention thereby has a control unit which is connected to a reader on the operating panel and at least one data memory for storing a personal identification code. Subsequent control instructions can thereby be linked in the control unit to the stored personal identification code.

Furthermore, the personal identification code already stored in the data memory can be compared directly with the newly loaded personal identification code in order to enable the association and authorization of control instructions.

The control unit preferably has a control algorithm in order to carry out a plurality of operating steps extended over a period of time, such as for example thread rigging, by the operator continuously as far as possible without interruptions. The control algorithm permits one input on the operating panel, or multiple inputs within a certain time interval, after personal verification. In this way both individual control commands issued at the operating panel and multiple control commands issued within a certain time interval can be issued by the operator.

The method according to the invention for operating a winding machine will now be explained in detail using an embodiment of the winding machine according to the invention, with reference to the accompanying drawings.

1 is a schematic side view of an embodiment of a winder according to the invention; FIG. Fig. 2 schematically shows a front view of the embodiment shown in Fig. 1 in operation during winding of yarn; Figure 3 is a schematic side view of the embodiment shown in Figure 2;

1, 2 and 3 show embodiments of the winding machine according to the invention in several views and in different operating situations. Accordingly, the following description for describing embodiments refers to all drawings, unless specific emphasis is given to one of the drawings.

The winding machine in this embodiment has a total of four winding points in order to wind the four threads parallel to each other into the package. The number of winding points is an example. For example, it is common to wind 10, 12, or more yarns parallel to each other on a driven winding spindle in a melt spinning process into a package. Here the yarn is indicated by 9 and the package by 10 .

The embodiment has a machine base 1 on which a winding turret 2 is rotatably supported. The rotary movement of the winding turret 2 on the machine frame 1 is effected by a turret drive 5 . Two winding spindles 3.1, 3.2, which are arranged 180.degree. Two spindle drives 4.1, 4.2 are respectively assigned to the winding spindles 3.1, 3.2. A turret drive 5 can be used to move the winding turret 2 with the winding spindles 3.1, 3.2. In this way, the winding spindles 3.1, 3.2 can be guided alternately between a changing area for removing wound packages and an operating area for winding the yarn.

The winding spindles 3.1, 3.2 extend along the winding point and have a plurality of winding tubes 11 on their periphery, one package 10 being wound per winding point. It can be formed in one winding of the tube 11 .

In the operating situation shown in FIGS. 2 and 3, the winding spindle 3.1 is in the active area for winding the yarn 9 onto the package 10 and the winding spindle 3.2 is provided with the wound package 10. located in the exchange area.

The winding spindles 3.1, 3.2 cooperate with the pressure roller 6 in the working area. A traversing device 7 is provided for traversing the yarn, which traversing device 7 has one traversing unit for each winding point. A separate deflection roller 8 is arranged for each winding point upstream of the traversing device 7 . The deflection roller 8 is rotatably held in a movable roller holder 19 . Deflection rollers 8 serve to separate yarns 9 which are guided as yarn groups in the melt spinning process and drawn off by godets.

For this purpose, in this embodiment two godets 17.1, 17.2 are held in a godet carrier 16, the godet carrier 16 being supported on the machine frame 1 of the winding machine. The godets 17.1, 17.2 are connected on opposite sides of the godet holder 16 to godet drives 18.1, 18.2.

A displacement device 14 is arranged in the lower region of the machine frame 1 in order to displace the wound package 10 around the braked winding spindle 3.1 or 3.2. The displacement device 14 has a slider, which can be displaced by means of a pneumatic linear drive 15 in the axial direction of the winding spindles 3.1, 3.2. In this way, the slider can be reciprocated between the stop position and the extended end position. 1-3 the displacement device 14 is shown in the rest position.

In order to operate the winding machine, an operating panel 13 is arranged on the front side of the machine frame 1 and can be operated by an operator. The operating panel 13 is connected to a control unit 12 containing the complete machine controls. This control unit 12 is connected to actuators (not shown here) of the drives 4.1, 4.2, 5, 15 and further auxiliary devices, as well as sensors.

As can be seen from the drawing in FIG. 2, the operating panel 13 has a plurality of control key areas or control keys 23 . Next to the control key 23, identification means 21 are arranged for personal identification of the operator. In this embodiment, the identification means 21 are formed by a transmitter-receiver system based on electromagnetic waves. The operating panel 13 is thus formed with a receiver of the identification means 21 in the form of a reader 22 . Reader 22 may be, for example, a scanner.

The transmission function of the identification means 21 takes place in the form of an RFID transponder 24 assigned to the operator. For personal identification it is therefore necessary for the operator to bring the corresponding RFID transponder 24 close to the reader 22 for reading the personal identification code. At this time, the reader 22 is directly connected to the control unit 12 via the operation panel 13 . The control unit 12 has a data memory 25 in which the read personal identification code can be stored.

In order to be able to carry out the operating steps in the embodiment shown in FIGS. 1 to 3, it is therefore necessary for the operator to first perform an identity verification.

For example, in the situation shown in FIG. 1, the yarn 9 is laid at the winding point and started to be wound at the start of the process. The thread 9 is continuously received as a thread group by means of a hand injector 20 and guided to a waste bin (not shown here). A hand injector 20 is held by the operator and guided for separating and setting the yarn. To activate the drives and auxiliaries inside the winder, the operator needs to issue at least one or more control commands at the winder. For that purpose, at least one or a plurality of control keys 23 on the operation panel 13 must be operated. In order to be able to issue control commands in the control unit 12, the operator must first carry out an identity verification. To that end, the RFID transponder 24 is brought close to the reader 22 on the operating panel 13 . A respective personal identification code is read, supplied to control unit 12 and stored at least in data memory 25 . Based on the control algorithm of the machine controller, control commands by the operator will be granted immediately after personal identification. There is then the possibility that the personal identification code is assigned a time interval in which a plurality of control commands emitted during the time interval are permitted without additional personal confirmation. Only after this time interval has elapsed does the operator need to carry out a new personal confirmation at the operating panel 13 .

Alternatively, however, there is also the possibility of first comparing the read personal identification code of the operator with another personal identification code stored in the data memory 25 . Only after the read personal recognition code matches one stored personal recognition code, the operation of the control key 23 on the operation panel 13 is released. Improper or incorrect operation of the winding machine can thus be advantageously avoided.

Alternatively or additionally, however, there is also the possibility, in connection with the personal identification code, of releasing only some of the control keys 23 for issuing control commands. This allows intuitively specified operating steps to be assigned to specific operators. Such access authorization likewise prevents erroneous operation of the winder. In other words, the setting of the thread by the operator requires a certain skill in order to allow trouble-free insertion and separation of the thread.

In contrast, the operating steps for removing the package 10 on the winding spindle held in the exchange area can be classified as relatively simple operations. This embodiment is shown in FIG. Again, the operator is first required to perform an identity verification. Identity verification is done in a similar fashion, requiring the operator to bring the RFID transponder 24 close to the reader 22 on the control panel 13 .

The identification means 21 for personal identification shown and described in the embodiments here is an example. In principle, it is also possible to use other identification means, such as fingerprint recognition, which are already common today. However, transmitter-receiver systems have been found to be suitable in the context of melt spinning processes.

Claims (10)

A method for operating a winder in a melt spinning process, comprising winding a plurality of yarns alternately into a package by means of two driven winding spindles, the initial setting of said yarns and/or said winding. A method, wherein removal of a wound package from a winding spindle of one of the spindles is carried out by an operator, and said operator previously issues at least one control command on an operating panel, said operator performs prior identity verification for issuing said control instructions. said operator uses an RFID transponder with a personal identification code for said personal identification, said personal identification code being read via a reader in said operation panel;
The method of claim 1. The personal recognition code is compared with a plurality of stored personal recognition codes inside the machine control device, and if the read personal recognition code matches one stored personal recognition code, the control is performed. allow orders,
3. A method according to claim 1 or 2. storing the personal identification code upon issuing the control command by the operator;
A method according to any one of claims 1 to 3. Allowing multiple control commands within a certain time interval after reading the personal identification code;
5. The method of claim 4. After the time interval elapses, the operator repeats the identity verification to issue another control command.
6. The method of claim 5. A winding machine for winding a plurality of yarns (9) into a package (10), comprising two winding spindles (3.1, 3.2) held projectingly on a winding turret (2). ) are provided, said winding spindles (3.1, 3.2) being rotatably driven by said winding turret (2) for winding said packages (10) into working areas and , and an exchange area for removing the wound package (10), and a plurality of drive devices (4.1, 4.2, 5, 15) and the drive device (4. .1, 4.2, 5, 15) and a control unit (12) connected to an operating panel (13), wherein the control unit (12) is connected to an operating panel (13) ,
A winding machine, characterized in that said operating panel (13) has identification means (21) for personal identification of the operator. Said identification means (21) comprise a reader (22) arranged on said operation panel (13) for reading a personal identification code and a RFID transponder assigned to said operator, provided with said personal identification code. (24) and
A winder according to claim 7. The reader (22) is connected to the control unit (12) and the control unit (12) has a data memory (25) for storing the personal identification code.
A winder according to claim 8. The control unit (12) has a control algorithm by which an input on the operating panel (13) or multiple inputs within a certain time interval are allowed after the personal confirmation. to be
A winding machine according to claim 9 .

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