JP2000289939A - Tape derivery tension regulating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically perform the inertial compensation control of a tape pad by the influence of the magnitude of rotating speed of a taping head in acceleration and deceleration by supplying a voltage or current outputted from a comparative computing element to an electromagnetic brake to increase or decrease the voltage added to the electromagnetic brake. SOLUTION: A rotating speed signal 1 of a taping head and an operating state signal 2 in a taping device are inputted to an arithmetic circuit 3. The data for rotating speed and operating state of the taping head preliminarily stored in a data memory 6 is read, and a comparative calculation is performed by use of the data. The resulting digital data is converted to analog data by a D/A converter 4, further amplified by an amplifier circuit 8, and supplied to an electromagnetic brake 10 attached to a tape pad, whereby the voltage added to the electromagnetic brake 10 is increased and decreased to control the tape delivery tension.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of winding a tape around the outer periphery of a striated body, and more particularly to the provision of an apparatus for adjusting the feeding tension of a tape in winding a tape.

[0002]

2. Description of the Related Art As a device for winding a tape, a device for adjusting a tape feeding tension in a so-called taping device, there is the following device. It performs inertial compensation).

(1) A plurality of tape feeding tension setting devices for operating the taping device, ie, during acceleration, steady operation, deceleration, sudden stop, etc., are provided. A device for compensating the acceleration / deceleration of the tape feeding tension by changing the voltage of the electromagnetic brake attached to the tape pad based on the output of the tension setting device corresponding to the state one-to-one.

(2) In a tape tension adjusting device for reducing the tension in proportion to the diameter of the tape pad, a tension setting device for starting and stopping is separately provided, and based on an output calculated by a comparison operation circuit. , Which performs inertia compensation by changing the voltage of the electromagnetic brake attached to the tape pad.

[0005]

In the above-mentioned prior art, when the speed of the taping head is increased, the rotational speed of the taping head suddenly changes (at the time of acceleration, at the time of deceleration, or at the time of sudden stop) due to the inertia of the tape pad. However, there is a problem that the tape becomes loose or the tape breaks.

In addition, there is a problem that work efficiency is deteriorated because adjustment is required depending on work conditions and changes in the material of the tape.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tape feeding tension adjusting device capable of automatically performing a tape pad inertia compensation control due to the influence of the taping head rotation speed during acceleration and deceleration of the taping device. Is to do.

[0008]

SUMMARY OF THE INVENTION A tape feeding tension adjusting device provided by the present invention fetches a signal relating to the rotation speed of a taping head and the operating state of a taping device, and a data table of these two signals to perform a comparison operation. And a voltage or current output from the comparison arithmetic unit, which is supplied to the electromagnetic brake, thereby increasing or decreasing the voltage applied to the electromagnetic brake, thereby compensating for inertia during acceleration / deceleration of the tape feeding tension. Is automatically controlled.

As described above, the tape feeding tension is controlled based on data obtained by previously measuring the correlation between the taping head rotation speed, the driving state signal, and the braking force, so that the tape feeding tension can be adjusted manually. Adjustment very close to continuous adjustment can be automatically performed.

In a preferred embodiment, the comparison operation unit comprises:
An arithmetic circuit for producing digital data by the comparison operation, and a D / A converter for converting the digital data into analog data, further amplifying the analog data output from the D / A converter to be applied to an electromagnetic brake. It is preferable to have an amplifier circuit for supplying.

Preferably, a manual fine adjuster is provided between the D / A converter and the amplifier circuit, and a voltmeter is provided between the amplifier circuit and the electromagnetic brake. The manual fine adjuster finely adjusts the output voltage before the amplifier circuit 8 because the initial voltage needs to be adjusted according to the initial change in the rotation speed of the taping head. The voltmeter is used for checking when finely adjusting the voltage applied to the electromagnetic brake.

[0012]

FIG. 1 shows an embodiment of a tape feeding tension adjusting device according to the present invention in an electric system, and FIG. 2 shows data input to the device.

In FIG. 1, reference numeral 5 denotes a comparison operation unit, which includes an operation circuit 3 and a D / A converter 4. Arithmetic circuit 3
2 captures the rotation speed signal 1 of the taping head and the operation state signal 2 of the taping device, and stores data on the rotation speed and the operation state of the taping head stored in the data memory 6 in advance, that is, as shown in FIG. The data is called, a comparison operation is performed using the data, the obtained digital data is converted into analog data by the D / A converter 4, further amplified by the amplifier circuit 8, and thereafter, the electromagnetic brake with the tape pad is attached. 1
0, thereby controlling the tape feeding tension by increasing or decreasing the voltage applied to the electromagnetic brake 10.

The electromagnetic brake 10 is selected such that the braking force changes according to the supply input voltage.

A manual fine adjuster 7 is provided in front of the amplifying circuit 8, and performs a fine adjustment operation when the initial voltage needs to be adjusted due to a change in the initial magnitude of the rotation speed of the taping head. It is.

[0016] Also, behind the amplifier circuit 8 (electromagnetic brake 1).
0), a voltmeter 9 is provided.
Are provided for confirmation when finely adjusting the voltage applied to the.

According to the apparatus of this embodiment, the following effects can be obtained.

(1) The problem of tape loosening or tape breakage can be solved by automatically controlling the compensation of the inertia of the tape pad based on the rotation speed of the taping head. In addition, improvement in productivity and product quality can be expected.

(2) The digital processing of the signal processing facilitates maintenance such as writing and changing data.

Since the device of the present invention controls the voltage, it is possible to control the tension of the delivery device in the same manner. In the above description, "tape"
Although it is literally intended for a tape, the present invention is not limited to the “tape” itself, and can be applied to some similar products, for example, a nylon wire.

[0021]

According to the present invention as described above, the inertia compensation control of the tape pad can be automatically performed under the influence of the magnitude of the taping head rotation speed at the time of acceleration / deceleration of the taping device. The intended purpose of providing a tape feeding tension adjusting device can be achieved.

[Brief description of the drawings]

FIG. 1 is an explanatory block diagram showing an embodiment of a tape feeding tension adjusting device according to the present invention using an electric system.

FIG. 2 is a reference diagram of data input to the apparatus shown in FIG.

[Explanation of symbols]

 Reference Signs List 1 rotation speed signal of taping head 2 operation state signal of taping device 3 arithmetic circuit 4 D / A converter 5 comparison arithmetic unit 6 data memory 7 manual fine adjuster 8 amplifier circuit 9 voltmeter 10 electromagnetic brake

Continued on the front page (72) Inventor Kenichi Tomimatsu 5-1-1, Hidaka-cho, Hitachi-shi, Ibaraki F-term in the Hidaka factory of Hitachi Cable, Ltd. (reference) 3F105 AA04 AB15 BA01 CB08 CC01 DA05

Claims (3)

[Claims] The present invention relates to a taping device having a tape pad with an electromagnetic brake and a taping head for winding a tape around an outer periphery of a filament.
A comparison arithmetic unit that fetches a signal relating to the rotational speed of the head and the operation state of the taping device and a data table of these two signals and performs a comparison operation, and supplies a voltage or current output from the comparison arithmetic unit to the electromagnetic brake. To adjust the tape feeding tension. 2. The comparison operation unit according to claim 1, wherein said comparison operation unit comprises an operation circuit for producing digital data by said comparison operation, and a D / A converter for converting said digital data into analog data. 2. The tape feeding tension adjusting device according to claim 1, further comprising an amplifier circuit for amplifying the analog data to be supplied and supplying the amplified analog data to an electromagnetic brake. 3. The device according to claim 2, wherein a manual fine adjuster is provided between said D / A converter and said amplifier circuit, and a voltmeter is provided between said amplifier circuit and said electromagnetic brake. Tape feeding tension adjusting device.