JPH02243474A - Winder control device - Google Patents

Abstract

PURPOSE:To prevent weaving and wrinkling from occurring by outputting such a speed command as causing each peripheral speed of a roll and a core to become the specified value on the basis of a detected value of a roll diameter detecting means and a stored value of a speed pattern memory means. CONSTITUTION:With drive of an electric motor 41, a film 50 is delivered from a roll 42 via guide rollers 43, 44, a dancer roller 45 and a guide roller 46, and rolled on a core 47 being driven by another electric motor 48. Then, a speed command outputting means 3 operates a speed command on the basis of a winding diameter of the roll 42 being detected by a roll diameter detecting means 1 and a peripheral speed of the core 47 being prestored in a speed pattern memory means 2, namely, a speed pattern of the motor 48 to set a winding speed of the film 50 being wound to the specified value, and each rotation of these motors 41, 48 at both roll and core sides is controlled. Thus, weaving and wrinkling can be prevented from occurring.

Description

Detailed Description of the Invention [Objective of the Invention] (Industrial Field of Application) The present invention is directed to unwinding a film from an original film driven by a first electric motor, and attaching a dancer roller to a core driven by a second electric motor. The present invention relates to a control device for a winder that winds a film through a winder.

(Prior Art) FIG. 3 shows a conventional winding machine control device. This control device includes a displacement detector 21, speed control means 22, speed pattern storage means 25, and speed control means 26.

This control device unwinds a film 50 from a raw material 42 driven by an electric motor 41, and moves this film 50 through guide rollers 43, 44, dancer rollers 45,
It is used in a winding machine that winds the winding material around a winding core 47 driven by an electric motor 48 via a guide roller 46 .

The displacement detector 21 detects the displacement (vertical movement amount) of the dancer roller 45. The speed pattern storage means 25 stores the circumferential speed of the winding core 47 that winds the film 50. The speed control means 26 controls the rotational speed of the electric motor 48 based on the stored value in the memory pattern storage means 25 so that the winding speed of the film 50 wound around the winding core 47 becomes a predetermined value V 2 . The speed control means 22 controls the speed of the film 5 fed out by the original film 42 based on the detected value of the displacement detector 21.
Control is performed so that the delivery speed of 0 becomes a predetermined value v.

As a result, the tension of the film 50 is controlled to a predetermined value.

(Issues to be Solved by the Invention) The winding speed of the film 50 controlled by such a conventional control device, that is, the winding side circumferential speed is shown in FIG.
Figure 4 (b) shows the displacement of the dancer roller at this time.
). The feeding speed of the film 50, that is, the peripheral speed on the feeding side is shown in FIG. 4(C). In the conventional control device, the feeding side, that is, the rotational speed of the original film is controlled based on the displacement of the dancer roller 45, so that the state of the film 50 (tension, bus length, etc.) does not change as shown in FIG. 4(a). , and (b), and (c)).
There has been a problem that winding misalignment (meandering), wrinkles, etc. occur on the winding side.

The present invention has been made in consideration of the above problems, and includes:
It is an object of the present invention to provide a control device for a winding machine that can prevent the occurrence of winding misalignment and wrinkles.

[Structure of the invention]

(Means for Solving the Problems) A control device for a winding machine according to the present invention unwinds a film from an original film driven by a first electric motor, and feeds the film to a core driven by a second electric motor via a dancer roller. In the winding machine for winding the film, an original film diameter detection means for detecting the current winding diameter of the original film, a first speed control means for controlling the rotational speed of the first electric motor based on a speed command, a second speed control means for controlling the rotational speed of the second electric motor based on a speed command; a speed pattern storage means for storing a speed pattern of the second electric motor; and a speed pattern stored in the speed pattern storage means. Based on this, a speed command is output to the second speed control means, and the speed of the film sent out from the web is adjusted to the winding core based on the current roll diameter of the web detected by the web diameter detection means. and speed command output means for outputting a speed command equal to the speed of the film to the first speed control means.

(Function) According to the winding machine control device according to the present invention configured as described above, the circumferential speed of the web and the winding core is determined based on the detected value of the web diameter detection means and the stored value of the speed pattern storage means. A speed command such that the
and is output to the second speed control means. Based on this speed command, the first and second electric motors are controlled by the first and second speed control means, respectively, so that the film tension, bus length, etc. do not change, and winding misalignment and wrinkles do not occur. can be prevented.

(Embodiment) FIG. 1 shows an embodiment of a control device for a winder according to the present invention. The control device of this embodiment includes a web diameter detection means 1, a speed pattern storage means 2, a speed command output means 3, and speed control means 4, 5, and includes an electric motor 41, a web 42, and a guide roller. 43, 44, a dancer roller 45, a guide roller 46, a winding core 47, and an electric motor 48. In this winding machine, the electric motor 41
The film 50 is unwound from the original web 42 driven by the motor 48, and the film 50 is wound onto the core 47 driven by the electric motor 48 via the guide rollers 43 and 44, the dancer roller 45, and the guide roller 46.

The original fabric diameter detection means 1 detects the current winding diameter of the original fabric 42.

Further, the speed pattern storage means 2 stores the speed pattern of the electric motor 48 in order to set the circumferential speed of the winding core 47, that is, the winding speed of the film 50 wound by the winding core 47, to a predetermined value.

The speed command output means 3 calculates based on the detection output of the web diameter detection means 1 and outputs a speed command such that the speed of the film fed out from the web 42 is equal to the speed of the film wound around the core 47. At the same time, the speed pattern stored in the speed pattern storage means 2 is outputted to the speed control means 5 as a speed command. Speed control means 4 and 5 control the rotation speeds of electric motors 41 and 48, respectively, based on the speed command output from speed command output means 3.

The circumferential speed of the winding core 47 of the winder controlled in this way is shown in FIG. 2(a), and the circumferential speed of the raw fabric 42 is shown in FIG. 2(b).
The moving speed of the film 50 is shown in FIG. 2(c). Also,
The displacement (vertical direction) of the dancer roller 45 at this time is shown in FIG. 2(d). From FIGS. 2(a), (b) + and (c), the peripheral speed of the winding core 47 and the original fabric 42 and the film 5
It can be seen that the moving speeds of 0 are controlled to predetermined values. Also, from FIG. 2(d), the dancer roller 45
It can be seen that there is almost no displacement from the reference position.

As explained above, according to this embodiment, the film 50
Since the tension and bus length do not change, it is possible to prevent winding misalignment and wrinkles from occurring.

〔Effect of the invention〕

According to the present invention, it is possible to prevent winding misalignment and wrinkles from occurring.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of a control device for a winding machine according to the present invention, Fig. 2 is a graph explaining the operation of the control device shown in Fig. 1, and Fig. m3 is a conventional control device for a winding machine. FIG. 4, a block diagram showing the device, is a graph explaining the operation of the conventional control device. DESCRIPTION OF SYMBOLS 1... Original fabric diameter detection means, 2... Speed pattern storage means, 3... Speed command output means, 4.5... Speed control means, 41.48... Electric motor, 42... Original fabric, 45
... Dancer roller, 47... Winding core.

Claims (1)

[Scope of Claims] A winding machine that unwinds a film from an original fabric driven by a first electric motor and winds the film onto a core driven by a second electric motor via a dancer roller, comprising: a diameter detection means for detecting the current winding diameter; a first speed control means for controlling the rotational speed of the first electric motor based on a speed command;
a second speed control means for controlling the rotational speed of the electric motor;
a speed pattern storage means for storing a speed pattern of the second electric motor; and a speed command is output to the second speed control means based on the speed pattern stored in the speed pattern storage means; Based on the current winding diameter of the original fabric detected by the detection means, the first speed command is set such that the speed of the film fed out from the original fabric is equal to the speed of the film wound onto the core.
1. A control device for a winding machine, comprising: speed command output means for outputting a speed command to a speed control means.