JPS5814215A - Controller for set angle correction - Google Patents

Abstract

PURPOSE:To obtain the excellent paint characteristics, by correcting a set angle in accordance with a correcting curve from the relation of change between a pressing angle and a set angle. CONSTITUTION:A function value or a coefficient is set or inputted by a correction amount set input device 19. In a correction amount operation device 20 to a pressing angle, the amount of correction and a set angle after correction are operated by the set value of the device 19 from the pressing angle inputted from a pressing angle detector 21. On the other hand, a deviation between the set angle after correction calculated with the device 20 to the pressing angle and the set angle of the set angle detector 22 is obtained and the deviation is outputted to a set angle driving controller 24. This controller 24 operates the rotating direction of a motor and speed set signal with the deviation to control the motor for a set angle operation driving device 25.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a setting angle correction control device that can be applied to S-matic coater heads, rotational angle pressure coating devices, push-in pressure coating devices, sliding pressure coating devices, etc. be.

11th i! ! ! (6) (B) In the conventional coating device, the rotary type door (2), blade holder (3), blade holder (ri), and pressure fulcrum (3) are located at the set rotation center (6).
◎ Therefore, only the set angle changes with respect to the coated paper surface (7). In addition, when applying pressure to the tip of the blade, rotate the pressure blade (2), blade holder (3), and blade holder (four-piece and pressure fulcrum spear) around the pressure angle rotation center CM). Since the tip of the blade (C) is restrained by the coated paper surface (R), the pressure blade (C) is bent.

Note that (A) is a bushing, and (B) is an eccentric bushing.

Ideally, the setting angle between the coated paper surface (7) and the pressure blade (A) should not change during the above pressurizing motion, but the rigidity of the blade, the coated paper surface (7), and the backing rule (9) ) A slight change in the setting angle occurs depending on the hardness, etc. This change in setting angle has the disadvantage of affecting the quality of the coated surface.

Next, to explain the drive system of the mechanism shown in Fig. 1 (a) with reference to Fig. The worm wheel (ll) rotates and controls the pressure angle.
The signal is transmitted at a reduced speed. (/2] is a worm wheel (
When the worm wheel [l/] rotates, the worm jack (12) moves up and down. When the worm jack (12) moves up and down, the bush (A) connected to the lever (13) rotates.

The bushing (A) and the blade holder (lI) have an integral structure, and the bushing has a pressure angle rotation center C11).
Rotate around the center. This action changes the pressing force at the set angle rotation center (6). In addition, (1) is the drive shaft and worm for operating the setting angle, (15) is the same worm (
The worm wheel 1 (16) that engages with the worm wheel (/S), and the worm wheel (/S) that engages with the worm wheel (/S), 1-mu jack, (/
7) is a lever whose one end is pivotally connected to the worm jack (16) and whose other end is fixed to the eccentric bush (8).

Next, when the worm (/Hiro) rotates, the worm jack (/6) moves up and down via the worm wheel (15), and the eccentric bush ω) moves around the set angle rotation center (6) via the lever (17). and rotate. At this time, by controlling the rotational speed of the worm (l) and (l) for setting angle operation and pressurizing angle operation so that the relative speed between the eccentric bush (6) and the bushing prisoner becomes zero, the blade holder (ri) is a rotational movement around the set angle rotation center (6), and the pressing force at the set angle rotation center (6) does not change.

The present invention aims to eliminate the drawbacks of conventional devices and provide a set angle correction control device having good coating characteristics by adding a device that performs correction according to a correction curve based on the relationship between the pressurizing angle and the change in the set angle. It is.

An embodiment of the present invention will be described below with reference to the drawings. Fig. 2 is a block diagram showing an embodiment of the setting angle correction control device of the present invention, and (19) is a correction amount setting input device for correction for one pressurizing angle. It is connected to a quantity calculation device (〃), and a pressure angle detector (col) is connected to the calculation device (20). (2,1) is the setting angle detector, and the comparison calculation device (
-t3), and the correction amount calculation device (J) is connected to the same calculation device (,2,?). (2) is a set angle operation drive control device connected to the comparison calculation device (n), and (e) is a set angle operation drive unit connected to the same control device (2).

Now, as shown in Fig. 3, the relationship between the pressurizing angle α and the set angle variation Δβ shows a specific functional relationship, and the difference in the relational expression is due to the coating conditions (blade width, plate thickness, coating liquid , the rubber hardness of the packing roll, etc.).

In this method, a function value or coefficient is set or input using the correction amount setting input device (/9) shown in FIG. 2, taking these matters into consideration. In addition, in the correction amount calculation device (〃) for the pressurization angle, the correction amount and the correction amount and On the other hand, the comparison calculation device (23) calculates the deviation between the setting angle of the setting angle detector and the corrected setting angle calculated by the correction amount calculation device (a) for the pressurizing angle. and outputs the deviation to the drive section control device (J) for setting angle operation.This control device (J)
The motor rotation direction and speed setting signal are calculated based on the amount of deviation, and the motor of the setting angle operation drive device is controlled.

Figure 1 is a block diagram of an embodiment different from Figure 2, which includes a digital switch for setting coefficients (easy), an absolute type rotary encoder (27) for detecting the pressurizing angle, and an absolute type rotary encoder for detecting the set angle. <X) is
A digital computer containing correction calculation-comparison and motor control logic is connected to the variable speed motor controller and motor (3).

Since the present invention is configured as explained in detail above,
Since the set angle is kept constant even when the pressure angle is manipulated, a coating with more uniform quality and better quality than before can be obtained.

[Brief explanation of the drawing]

Fig. 1 (a) is a side view schematically showing a rotary pressure mechanism in a conventional coating device, Fig. 7 (b) is an explanatory diagram showing the setting angle in the same mechanism, and Fig. 2 is an embodiment of the present invention. A block diagram of the control device showing an example, Fig. 3 is a diagram showing the relationship between the pressurizing angle and the amount of change in the set angle, and Fig. q is a block diagram showing an embodiment different from Fig. 2, Fig. S FIG. 2 is a side view showing the drive mechanism of the device in FIG. 1; Explanation of main parts of the figure/9...Correction amount setting input device 10...Correction amount calculation device for pressurizing angle Ko3...Comparison calculation device Koda...Drive section control device for setting angle operation Pressure 113 (戊) Fig. 5

Claims (1)

[Claims] A correction amount setting input device that sets the relationship between the pressurizing angle and the amount of change in the set angle; and a correction amount calculation for the pressurizing angle that is connected to the same setting input device and calculates the correction amount and the corrected set angle from the pressurizing angle. The device is connected to the same calculation device, and the comparison calculation device is connected to the same calculation device to calculate the deviation between the set angle and the set angle after correction. A set angle correction control device comprising: a set angle operation drive section control device that controls a drive motor.