JP5249201B2 - Equipment for forming cotton rolls from textile fiber cotton - Google Patents

Description

  The present invention is an apparatus for forming a cotton roll from textile fiber cotton, in particular for providing to a combing machine, the winding pressure being adaptable to the increasing diameter of the cotton roll in the construction of the cotton roll. Relates to a type having a rotational speed control device for at least one roller for conveying cotton.

  A machine of the above type for forming a cotton roll is the subject of EP0942080B1. In FIG. 2, the ordinate axis shows a decrease in press pressure and the abscissa axis shows an increase in roll diameter.

  The machine has a control device that always reveals the instantaneous diameter of the cotton roll during the formation process. The machine therefore has a rotating pulse generator which supplies a signal corresponding to the accumulated length of the supplied cotton to the control device. In addition, the controller is supplied with other signals such as the weight of the supplied cotton, the specific weight of the cotton, the width of the supplied cotton band or cotton roll and the outer diameter of the winding tube, expressed in units of weight per length unit. Is done. This is done by hand.

  From these values, the control device calculates the instantaneous diameter of the cotton roll using the algorithm described in Section 7.

  This device requires only a separate rotational speed generator to detect the accumulated length of the cotton roll and an electronic calculation means to determine the roll diameter. It is necessary to convert the wound body diameter itself into a predetermined press pressure.

  An object of the present invention is to simplify the determination of an appropriate press pressure for a cotton roll and to eliminate the need for a special device for measuring length or diameter.

  The present invention solves the above problem by the configuration described as the feature of claim 1. From the speed control device for the winding roller drive, the desired length signal for each wound cotton length is obtained by pure data technology processing, without additional equipment technical costs. Can be derived. This increasing length signal can be associated with an empirically determined signal for decreasing winding pressure, which is provided to the press.

  In this case, it has been proved that empirically determining the corresponding winding pressure is sufficient for orderly construction of the cotton roll. Furthermore, this provides the advantage that the press pressure can be easily changed according to the appropriate experience of the operator.

  Advantageously, the length of the cotton is divided into length sections, which correspond to a predetermined pressing pressure.

  For this purpose, the device according to the invention comprises an input device capable of realizing the correspondence and a data memory in which the characteristic lines of the relationship between the length category and the press pressure can be stored and recalled again. .

The schematic side view of a winding apparatus. FIG. 2 is a pressing force / length diagram of the winding device of FIG. 1.

An embodiment of the invention is schematically shown in the drawing.

  The winding device 1 has two winding rollers 2 and 3, and one of the winding rollers 2 and 3 is driven by an electric motor 4. The rotation of the winding roller is transmitted to the other winding roller via a transmission device (not shown).

  A cotton roll 5 is positioned on both winding rollers 2 and 3, and the cotton roll 5 is wound around a core 6. In order to achieve a tight winding body, the winding core is pressed against the winding roller via the load device 7.

  In the illustrated embodiment, the load device comprises a piston cylinder unit 8 whose piston is pressed downwards under pressure generated by the fluid, i.e. with fluid pressure. The fluid pressure is aerodynamic or hydraulic and can be generated by a pressure source not shown. The fluid pressure can be connected, disconnected and switched or adjusted by a control slider.

  The rotation speed of the winding roller 2 is controlled by the control device 10 in relation to the conveying speed of the mechanism for supplying cotton or by the supply frequency. From this control signal, a length signal for the length easily wound on the winding body in a data technical form is derived. Thus, the supply frequency proportional to the winding length can be counted. From this length signal, the pressing pressure of the load device 7 which decreases with the supplied length is then derived.

  This derivation algorithm may involve parameters such as cotton thickness, cotton elasticity, a functionally adapted reduction in press pressure and other parameters.

  However, it has been proposed that the decrease in the press pressure is controlled empirically so that a predetermined decreasing press pressure can be made to correspond to a predetermined length region of the wound cotton wound body. This response can be implemented by the operator according to experience and instantaneous observation. This is because the reduction of the pressing pressure is not an important factor in the configuration of the cotton roll.

And pressing pressure / length diagram 11 for providing the press pressure is shown in the load unit 7 in FIG. The abscissa axis indicates the wound length, and the ordinate axis indicates the press pressure with respect to the winding core 6. A predetermined, preferably increasing length section 12 ₁ to 12 _n is associated with a decreasing pressing pressure 13 ₁ to 13 _n . The pressing pressure 13 ₁ from 13 _n are functionally properly selected such that the desired winding body configuration is achieved.

For this purpose, the length signal of the control device 10 is supplied to an input device 14 having a touch field 15 and a display 16. In this input device 14, the press pressures 13 ₁ to 13 _n can be made to correspond to the length sections 12 ₁ to 12 _n . The press pressure / length characteristic line 17 formed in this way is stored in the input device and can be recalled on quality change.

  The subject matter of the present invention is given not only from the subject matter of the individual claims but also from the combination of the claims.

  The contents and features disclosed in the specification are important to the present invention as long as they are novel with respect to the known technology, alone or in combination.

  DESCRIPTION OF SYMBOLS 1 Winding device, 2, 3 Winding roller, 4 Electric motor, 5 Cotton winding body, 6 Winding core, 7 Loading device, 8 Piston / cylinder device, 10 Control device, 11 Press pressure / length diagram, 12 length Length, 13 press pressure, 14 input device, 15 touch field, 16 display, 17 press pressure / length characteristic line

Claims (6)

Watamakitai from textile fibers of cotton to provide a combing machine (5) An apparatus for that form,
At least one roller (2) for conveying said cotton fiber ;
A rotational speed control device (10) for controlling the rotation of the roller (2) using a control signal;
A load device (7) for applying pressure to the cotton roll (5);
A storage device in which the correspondence between the wound cotton length and the press pressure is stored;
With
The rotational speed control device (10) derives each length signal of the wound cotton from the control signal, and uses the stored correspondence to derive the press pressure from the length signal,
The said load apparatus (7) applies the said press pressure to a cotton roll (5), The apparatus for forming a cotton roll from textile fiber cotton characterized by the above-mentioned. The apparatus according to claim 1, wherein the roller (2), by its rotation, comes into contact with the outer diameter of the cotton roll and winds the textile fiber cotton onto the cotton roll. 3. An apparatus according to claim 1 or 2 , wherein the control signal comprises a feed stream and the length signal is derived from the number of periods of the feed stream. The correspondence relation, the at the storage device is associated (from 12 _{1 12} n) given length segment of the rolled-up cotton length and a predetermined press pressure (13 ₁ from ₁₃ n), and wherein Item 4. The apparatus according to any one of Items 1 to 3 . An input device (14) for input operation by an operator is provided,
The apparatus according to claim 1, wherein the correspondence relationship input by an operator is stored in a storage device. 6. The apparatus according to claim 1, wherein the storage unit stores the correspondence relationship in a callable manner.

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