JPS6333870Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a slitter winding surface pressure control device.
In particular, a load sensor installed on the center roll detects the tensile force of the winding band of aluminum foil, etc. leading to the center roll, determines the surface pressure in contact with the center roll from the load signal and tensile force signal, and sets this surface pressure signal. The setting signal of the device and the winding diameter correction signal that detects the winding diameter are input to the electro-pneumatic conversion amplifier, and this output is input to the converter to convert it to air pressure and operate the cylinder, so that the pressure is always constant. It is designed to control so that a stable surface pressure is applied.

Conventional slitting machines for aluminum foil, etc., have winding surface pressure control that determines the performance of the machine. Furthermore, there are two winding methods for the slitter: a horizontal movement method and a swing method, but each method has drawbacks, and each method relies on the skill of the operator to compensate for each drawback.

In the case of the latter swing method, a curved cam with the assumed surface pressure change is attached to the fulcrum shaft of the arm, and the displacement is extracted as a voltage signal according to the winding diameter.This signal is input to an electro-pneumatic converter, and the output is converted to pneumatic pressure. The surface pressure has been controlled using a cylinder.

However, the problem with this method is that the curve itself of the surface pressure change changes depending on the foil width, so the curved cam itself is an approximation, and the electro-pneumatic converter also has hysteresis, making it less accurate. There was also mechanical loss, which was a problem and the control was only as good as a rough guide.

In view of these points, the present invention aims to always control the surface pressure to be constant and stable.

An embodiment of the slitter winding surface pressure control device according to the present invention will be described in detail below with reference to the accompanying drawings.

1 is the center roll, this center roll 1
Load sensors 2 are installed on the left and right sides of the machine, and the load sensors 2 are connected to a load amplifier 3 to input load signals.
The left and right loads are compared and the balance is displayed on the display section 4. In addition, the load amplifier 3 inputs a signal from a tension sensor 6 that detects the tension of the winding belt P passing through the guide roll 5 provided on the guide roll 5 before reaching the center roll 1, together with a signal from the winding tension setting device 16. It is calculated and displayed on the surface pressure display section 7. The load amplifier 3 also inputs to an electro-pneumatic conversion amplifier 8 . The electro-pneumatic conversion amplifier 8 receives the setting value of the surface pressure setting device 9 and the winding diameter correction signal of the winding diameter detector 10. The electro-pneumatic conversion amplifier 8 performs calculations and inputs its output to the electro-pneumatic converter 11. The electro-pneumatic converter 11 converts voltage into air pressure, and supplies this converted air pressure to the cylinder 13 connected to the swing arm 12.

In addition, M in the figure is a winding motor.

As is clear from the above-mentioned configuration, in the present invention, the winding band of aluminum foil guided by the guide roll and led to the center roll is divided by the nip roll 14, is pivotally supported by the swing arm 12, and is attached to the center roll 1. The center roll 1 is wound onto the winding shaft 15 that is in contact with the aluminum foil, and the aluminum foil wound around the winding shaft 15 is subjected to surface pressure. This detection signal is input to the load amplifier 3, the left and right loads are compared, and the balance is displayed on the display section 4.
The tension of the aluminum foil winding band P passing through the guide roll 5 is inputted and subtracted by the signal detected by the tension meter 6 and the signal from the winding tension setting device 16, and displayed on the surface pressure display section;
The output of the load amplifier 3 is input to the electro-pneumatic conversion amplifier 8 which receives the winding diameter correction signal and the surface pressure set value signal, and is calculated, and the output is input to the electro-pneumatic converter 11 to convert it into air pressure. , is supplied to the cylinder 13 connected to the swing arm 12. Therefore, by using a microcomputer to calculate changes in the product weight, correction of the angle of the swing arm, etc., it can be used stably and the product can be made uniform, and the load is always constant at a constant winding diameter and does not change. There are effects such as no. It is also possible to control the surface pressure to vary according to the winding diameter.

[Brief explanation of the drawing]

The drawing is an explanatory diagram showing an embodiment of the slitter winding surface pressure control device according to the present invention. 1~Center roll, 2~Load sensor, 3~
Load amplifier, 4 - Left and right balance display section, 5 - Guide roll, 6 - Tension sensor, 7 - Surface pressure display section, 8
~ Electropneumatic conversion amplifier, 9 ~ Surface pressure setting device, 10 ~ Winding diameter detector, 11 ~ Electropneumatic converter, 12 ~ Swing arm, 13 ~ Cylinder, 14 ~ Nipple, 15 ~
Winding shaft, 16 - winding tension setting device.

Claims (1)

[Scope of utility model registration request] In a slitter winding device where a winding band of aluminum foil, etc. that is supplied through a guide roll is wound onto a winding shaft that is in contact with a center roll, load sensors are installed on the left and right sides of the center roll, and the load sensors detect the It is connected to a load amplifier that compares, calculates, and displays load signals, and the load amplifier also has a
In addition to connecting the signal of the tension sensor that detects the tension of the winding band passing through the guide roll leading to the center roll and the signal of the winding tension setting device, the load amplifier is connected to the electro-pneumatic device along with the surface pressure setting device and the winding diameter detector. It is connected to a conversion amplifier, and the electro-pneumatic conversion amplifier calculates and inputs its output to an electro-pneumatic converter, which in turn connects the converted air pressure to the cylinder connected to the swing arm. A slitter winding surface pressure control device characterized by being supplied with a slitter.