DD217832A1 - PRE-SPILL MACHINE WITH DECENTRAL DRIVE - Google Patents

Abstract

The invention relates to a roving machine with decentralized drive and relates to the field of roving. The application of the invention has the goal to provide a drive for a roving, with which a continuous adjustment to all fiber materials with a minimum mechanical effort is possible. The invention has for its object to provide a drive system for a roving, with which without high mechanical complexity, the optimal process parameters can be adjusted during operation. According to the invention this object is achieved by the separation of the information and power flow in the machine is a drive for each spinning function according to the spinning laws available, infinitely variable and can be influenced by quality parameters.

Description

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Title of invention

Roving machine with decentralized drive

Field of application of the invention:

The invention relates to a roving machine with decentralized drive and relates to the field of roving.

Characteristic of the known technical solutions:

So far drives are used to drive roving, which are driven by a central motor.

The resolution of the punctures is done via transmission. The regulation of the individual work processes is realized über.verstellbare, sometimes infinitely variable transmission. In this case, the force and information flow takes place together via this link · The adjustment to individual pasematerials takes place with the aid of change wheels, z.3. for the rotation and carriage speed. The disadvantage here is that always a compromise must be found on the corresponding conditions and a high expenditure on gears and drive elements, e.g. Differential, belt drive for conical drive, is necessary. The mechanical links provide further performance increases wear, high slip and high demands on the manufacturing accuracy.

Object of the invention:

The aim of the invention is to provide a drive for a roving j with which a continuous adjustment to all fiber materials with a minimum mechanical effort is possible.

Explanation of the essence of the invention:

The invention has for its object to provide a drive system for .einen roving, with which without high mechanical complexity, the optimal process parameters can be adjusted during operation-

According to the invention, this object is achieved in that the separation of the information and power flow takes place in the machine, a drive for each spinning function according to the spinning laws available, infinitely variable and can be influenced by quality parameters. The separate drive acts on the functions carriage movement, drafting system, vane and reel speed. The manipulated variables for the drive of the named functions are specified via a stored Frogramm from a microcomputer. From this microcomputer also quality parameters of the processed material are excluded.

evaluates and used to control the drives.

Embodiment:.

The roving machine is equipped with four separately controllable drives based on DC motors or frequency-controlled three-phase asynchronous motors. These are assigned the functions carriage movement, vane, coil and drafting speed.

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The control of these drives is done by a microcomputer · The mathematical relationships of the spinning laws are in the form of a program as the basis of the. Roving control stored in the microcomputer. Known input devices are used to specify the machine-dependent quantities and the technological technological values. By entering the textile technological data • the program is activated. A test coil is produced according to the required coil parameters and the function of the coil structure is determined. Programmatically, correction possibilities are provided for intervention in the spinning process-during the test coil for a positive influence on the coil structure, e.g. Spool number correction for optimizing the roving tension.

The optimized input of the factors for the calculation of the control variables for the winding of a coil takes place. In operation, the constant calculation of the necessary values takes place according to the number of layers, or the calculation of the values for a coil filling and the saving is carried out in a table, which is processed according to the number of layers. After each coil filling, the initial conditions are restored. When changing the textile material, the machine must be reprogrammed.

The accuracy of the speeds to each other is ensured by appropriate control circuits. The maximum processing speeds are determined by premises to be set, e.g. maximum permissible sliver breaks, determined independently, by exceeding the specification, the wing speed is reduced. To determine these premises known transducers are used in conjunction with counters and timebase. ·

Claims (4)

Invention claim: 1 ♦ roving with decentralized drive characterized in that a separation of the information and power flow takes place in the machine, a 'drive for each spinning function separately according to the laws of spin exists, is infinitely variable and can be influenced by quality parameters β 2. roving machine according to item 1, characterized in that the-separate drive on the Punktionen car movement, drafting, Plugel- and Spulendrehzahl.wirkt · 3 roving machine according to item 1 and 2, characterized in that the manipulated variables for the drive are predetermined by a program stored in a microcomputer program. 4. roving machine according to item 1 to 3, characterized in that the quality parameters of the material to be processed by the microcomputer evaluated and used for., Control of the drives.