JPH07194174A - Method and device for winding/inserting insulation paper - Google Patents

Abstract

PURPOSE:To prevent the tension variation of insulation paper during normal operation so as to prevent the wrinkling or cutting of the paper by appropriately controlling the drive torque of a motor for driving a take-up shaft in accordance with the variation of the mechanical loss torque of the take-up shaft by accurately recognizing the variation of the mechanical loss torque and correcting the torque. CONSTITUTION:In a insulation paper winding/inserting method in which the tension of the paper is controlled by controlling the drive torque of a motor 12 for a take-up shaft, the temperature of the coil of the motor 12 is detected and the mechanical loss torque of a take-up shaft decided against a reference temperature is corrected against the detected temperature of the coil, and then, compensating the drive torque of the motor 12 based on the corrected mechanical loss torque.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for winding / inserting a slip-sheet inserted between metal strips of a metal strip coil.

[0002]

2. Description of the Related Art Conventionally, as a paper winding control method, even when mechanical loss torque and static friction torque of a winding shaft are large,
Apply the total torque of static friction torque and mechanical loss torque to the motor for the take-up shaft so that the tension of the paper becomes almost constant during stall tension control (when the take-up shaft is driven from the stationary state). There is something I did. According to this conventional technique, the tension applied to the paper by the take-up shaft is appropriately adjusted at the start of the winding of the interleaving paper around the take-up shaft or the start of the unwinding of the paper. It is possible to prevent paper breakage due to excessive tension.

[0003]

However, the prior art has the following problems. The prior art only compensates for mechanical loss torque in tension control at the start of winding or unwinding.
That is, there is no place to compensate for mechanical loss torque in tension control during steady winding or unwinding, and it is not possible to prevent wrinkles or paper breakage during steady operation.

In the prior art, the mechanical loss torque measured under a certain condition in advance is merely compensated as a fixed value. That is, since the mechanical loss torque changes depending on the season and the operating time, the error between the actual mechanical loss torque and the fixed value changes the tension applied to the paper, causing wrinkles and paper breaks.

According to the present invention, by accurately grasping and correcting the change in the mechanical loss torque in the winding shaft, the drive torque of the winding shaft driving electric motor is appropriately controlled in accordance with the change in the mechanical loss torque. The purpose is to prevent changes in the tension of the slip sheet during steady operation, and to prevent wrinkles and breakage of the slip sheet.

[0006]

According to the present invention as set forth in claim 1, the interleaving paper inserted between the metal strips of the metal strip coil is wound around the winding shaft or while being wound around the winding shaft. When inserting paper between metal strips, a method of winding / inserting a slip sheet in which the drive torque is compensated by a mechanical loss torque when the slip sheet tension is controlled by controlling the drive torque of a winding shaft driving electric motor. In, the winding temperature of the winding shaft driving electric motor is detected, the mechanical loss torque determined at the reference temperature is corrected by the winding temperature, and the driving torque is compensated by the corrected mechanical loss torque. It is a thing.

The present invention according to claim 2 winds a slip sheet inserted between the metal strips of the metal strip coil, or winds a slip sheet inserted between the metal strips, and a winding shaft. Winding shaft driving electric motor that drives the winding shaft, power supply device that supplies DC power to the winding shaft driving electric motor, and torque that sets the driving torque of the winding shaft driving electric motor based on the interleaf tension setting value. Based on the setting circuit, the mechanical loss torque setting circuit that sets the mechanical loss torque of the winding shaft, and the setting value of the torque setting circuit and the setting value of the mechanical loss torque setting circuit, the above drive torque is compensated by the mechanical loss torque. In the interleaving paper winding / inserting device having a current control controller for controlling the power supply device, a temperature detector for detecting the winding temperature of the electric motor for driving the winding shaft is provided, and the mechanical loss torque is set. Machine defined by circuit at reference temperature A mechanical loss torque correction circuit that corrects the lost torque with the winding temperature is provided, and the current control controller is capable of compensating the drive torque determined by the torque setting circuit with the corrected mechanical loss torque. .

[0008]

According to the present invention, there are the following actions. The present inventor has found that the change in the mechanical loss torque depending on the season and the operating time correlates with the winding temperature of the winding shaft driving electric motor. Then, the winding temperature of the winding shaft driving electric motor is detected, and the mechanical loss torque determined by the reference temperature is corrected by the winding temperature. That is, the change in the mechanical loss torque is accurately grasped and corrected, and the drive torque of the winding shaft drive electric motor is compensated by the corrected mechanical loss torque. Therefore, the drive torque of the winding shaft driving electric motor is appropriately controlled according to the change in the mechanical loss torque.

In tension control during steady operation of winding or unwinding, the mechanical loss torque is compensated as described above. Therefore, it is possible to prevent the tension of the slip sheet from changing during steady operation, and to prevent the slip sheet from wrinkling or slipping.

[0010]

1 is a block diagram showing an example of a slip-paper winding / inserting device of the present invention, FIG. 2 is a diagram showing a setting chart of mechanical loss torque with respect to winding / rewinding speed, and FIG. 3 is winding temperature. And FIG. 4 is a schematic diagram showing the interleaf paper winding / inserting device.

As shown in FIG. 4, the metal band unwinding device 1 unwinds a metal band coil 2 such as a stainless steel band. The metal strip 2A unwound from the metal strip coil 2 is
For example, after being pickled, it is wound up on a metal band winding device (not shown).

As shown in FIG. 4, the interleaf paper winding / inserting device 10 is attached to each of the metal band unwinding device 1 and the metal band unwinding device, and (a) is unwound from the metal band unwinding device 1. The slip sheet 3 inserted between the metal strips 2A of the metal strip coil 2 is wound around the winding shaft 11, or (b) the slip sheet 3 inserted between the metal strips 2A wound up by the metal strip winding device. The winding shaft 11
Unwind from.

The slip-sheet winding / inserting device 10 has a winding shaft driving electric motor 12 for driving a winding shaft 11, as shown in FIGS. The electric motor 12 is a speed reducer 13.
Is provided as an accessory.

The interleaf paper winding / inserting device 10 is shown in FIG.
As shown in FIG. 2, the winding shaft driving electric motor 12 has a power supply device 14 for supplying a DC power supply or the like. In the present invention, the power supply device 14 may be a thyristor (SCR) power supply device, a transistor (Tr) power supply device, or the like.

The interleaf paper winding / inserting device 10 is shown in FIG.
As shown in FIG. 3, it has a torque setting circuit 15. The torque setting circuit 15 sets the winding tension or unwinding tension set value to be applied to the slip sheet 3, that is, the slip sheet tension setting value F, and the winding diameter or the winding diameter D of the metal strip coil 2. Based on this, the drive torque T _F of the winding shaft drive electric motor 12 is set. T _F
= F × D / 2.

The interleaf paper winding / inserting device 10 is shown in FIG.
As shown in FIG. 3, a mechanical loss torque setting circuit 16 for setting a mechanical loss torque T _L such as a frictional resistance loss of the winding shaft 11 is provided. The mechanical loss torque setting circuit 16 holds the mechanical loss torque T _L at the reference temperature t ₀ (° C.) with respect to the winding speed or the unwinding speed N in a chart f (N) as shown in FIG. 2, for example. Therefore, the mechanical loss torque T _L at the reference temperature t ₀ (° C.) corresponding to the winding speed or the unwinding speed N is set.

The interleaf paper winding / inserting device 10 is shown in FIG.
As shown in FIG. The current control adjuster 17 uses the set value T _F of the torque setting circuit 15 and
Based on the set value T _{L of the} mechanical loss torque setting circuit 16,
The drive torque T _F is compensated by the mechanical loss torque T _L ,
The power supply device 14 is feedback-controlled.

Therefore, the slip-sheet winding / inserting device 10 has a winding temperature detector 18, as shown in FIG. The winding temperature detector 18 detects the winding temperature t (° C.) of the winding shaft driving electric motor 12. If the electric motor 12 is a vector control motor, this electric motor 12 has a built-in winding temperature detector, and this built-in winding temperature detector can be used as the winding temperature detector 18.

The interleaf paper winding / inserting device 10 is shown in FIG.
As shown in FIG. 3, it has a mechanical loss torque correction circuit 19. The mechanical loss torque correction circuit 19 corrects the mechanical loss torque T _L determined by the mechanical loss torque setting circuit 16 at the reference temperature T ₀ (° C) at the winding temperature t (° C). Specifically, the mechanical loss torque correction circuit 19 determines the winding temperature t (° C.).
The mechanical loss torque T _La is _stored for each winding speed or unwinding speed N (N ₁ , N ₂ ...) In the diagram as shown in FIG. 3, for example. A mechanical loss torque correction value T _La corresponding to N and winding temperature t (° C.) is set. As a result, the aforementioned current control adjuster 17 causes the drive torque T _F determined by the torque setting circuit 15 to be determined.
Can be compensated by the mechanical loss torque correction value T _La .

The procedure for controlling the winding tension or the unwinding tension by the slip sheet winding / inserting device 10 will be described below.

(1) By the torque setting circuit 15, the set value of the winding tension or the unwinding tension to be applied to the slip sheet 3, that is, the winding tension set value F, and the winding diameter or winding of the metal strip coil 2. The drive torque T _F of the winding shaft driving electric motor 12 is set based on the diameter D.

(2) By the mechanical loss torque setting circuit 16,
Reference temperature t corresponding to winding speed or unwinding speed N
Set the mechanical loss torque T _L at ₀ (° C).

(3) The winding temperature detector 18 detects the winding temperature t (° C.) of the winding shaft driving electric motor 12.

(4) By the mechanical loss torque correction circuit 19,
The mechanical loss torque setting circuit 16 corrects the mechanical loss torque T _L determined at the reference temperature t ₀ (° C.) with the winding temperature t to obtain the mechanical loss correction value T _La .

(5) The current control controller 17 controls the power supply device 14 by compensating the drive torque T _F determined by the torque setting circuit 15 with the mechanical loss torque correction value T _La .

The operation of this embodiment will be described below. The winding temperature t (° C) of the winding shaft driving electric motor 12 is detected, and the mechanical loss torque _TL determined by the reference temperature t ₀ (° C) is corrected by the winding temperature t (° C). That is, the change in the mechanical loss torque T _L is accurately grasped and corrected, and the corrected mechanical loss torque T _La is used to drive the winding shaft driving motor 1.
The driving torque T _{F of} 2 was compensated. Therefore, the driving torque T _F of the winding shaft driving electric motor 12 is properly controlled according to the change of the mechanical loss torque T _La .

In tension control during steady operation of winding or unwinding, the mechanical loss torque T _L is compensated as described above. Therefore, it is possible to prevent the tension of the slip sheet 3 from changing during steady operation, and to prevent wrinkles and breakage of the slip sheet 3 from occurring.

[0028]

As described above, according to the present invention, by accurately grasping and correcting the change in the mechanical loss torque in the winding shaft, the drive torque of the winding shaft driving electric motor is converted into the mechanical loss torque. It is possible to appropriately control according to the change, prevent a change in tension of the slip sheet during steady operation, and prevent wrinkles and breakage of the slip sheet.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a slip-sheet winding / inserting device according to the present invention.

FIG. 2 is a diagram showing a setting chart of mechanical loss torque with respect to winding / rewinding speed.

FIG. 3 is a diagram showing changes in mechanical loss torque with respect to winding temperature.

FIG. 4 is a schematic diagram showing a slip-sheet winding / inserting device.

[Explanation of symbols]

 2 Metal band coil 2A Metal band 3 Interleaf paper 10 Interleaf paper winding / inserting device 11 Winding shaft 12 Motor for driving winding shaft 14 Power supply device 15 Torque setting circuit 16 Mechanical loss torque setting circuit 17 Current control controller 18 Winding temperature Detector 19 Mechanical loss torque correction circuit

Claims (2)

[Claims] 1. A winding shaft drive for winding a slip sheet inserted between metal strips of a metal strip coil on a winding shaft, or for inserting a slip sheet wound around a winding shaft between metal strips. In controlling the interleaving paper tension by controlling the driving torque of the electric motor, the winding temperature of the electric motor for driving the take-up shaft is detected in the interleaving paper winding / inserting method in which the above driving torque is compensated by the mechanical loss torque. Then, the mechanical loss torque determined at the reference temperature is corrected by the winding temperature, and the drive torque is compensated by the corrected mechanical loss torque. 2. A winding shaft for winding a slip sheet inserted between metal strips of a metal strip coil, or for winding a slip sheet inserted between metal strips, and a take-up shaft for driving the winding shaft. The drive motor, the power supply device that supplies DC power to the winding shaft drive motor, the torque setting circuit that sets the drive torque of the winding shaft drive motor based on the interleaf tension setting value, and the winding shaft Based on the mechanical loss torque setting circuit that sets the mechanical loss torque, and the setting value of the torque setting circuit and the setting value of the mechanical loss torque setting circuit, the current control that controls the power supply device by compensating the drive torque with the mechanical loss torque. The interleaving paper take-up / inserting device having a controller is provided with a temperature detector that detects the winding temperature of the electric motor for driving the take-up shaft, and the machine loss torque setting circuit determines the machine at the reference temperature. Loss torque above winding It has a mechanical loss torque correction circuit that corrects with a degree, and the current control controller can compensate the drive torque determined by the torque setting circuit with the corrected mechanical loss torque. apparatus.