JPH0592487A - Metal plate laminating device - Google Patents

Abstract

PURPOSE:To uniformize an amount of orientation crystallizability in the width direction by a method wherein an orientation crystallizable resin film is laminated on a strip without eliminating the orientation crystallizability. CONSTITUTION:Surface temperature controllers 2 for laminating rolls 1, 1 are each divided into a plurality of temperature regulating devices 2', 2', 2' in the width direction thereof. The surface temperature controllers 2 can be controlled in the width direction by said temperature regulating devices.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for laminating a thermoplastic oriented crystalline resin film on the surface of a strip-shaped thin metal plate or a strip-shaped metallic foil without extinguishing the oriented crystallinity (BO).

[0002]

2. Description of the Related Art Conventionally, a technique has been developed in which a thermoplastic oriented crystalline resin film is laminated on a strip-shaped thin metal plate while the oriented crystalline property remains. However, since it is extremely difficult to control the lamination temperature, it is difficult to uniformly maintain the residual amount of oriented crystallinity (BO), and it is particularly difficult to maintain the uniformity in the width direction by heating / radiative cooling in the width direction. ..

[0003]

DISCLOSURE OF THE INVENTION According to the present invention, a biaxially oriented crystalline resin film made of PET or the like is applied to a strip-shaped thin metal plate to maintain the uniformity in the line direction and the width direction without eliminating oriented crystallinity (BO). The purpose is to obtain a device for laminating into a state.

[0004]

To achieve the above object, the present invention is a laminate for laminating a metal plate and a film, which comprises a strip preheating device, a pair of laminating rolls, and a quenching device after laminating. In the apparatus, the surface temperature control device of the laminating roll is composed of a plurality of temperature adjusting devices divided in the width direction of the laminating roll, and has means for operating the temperature adjusting device according to the temperature distribution in the width direction of the laminating roll. Metal plate laminating device In the above laminating device, the temperature distribution in the preheating device is gradually increased with respect to the moving direction of the strip. The first or second means having means for adjusting the distance to the water surface of the device In the metal plate laminating apparatus above laminating apparatus of the second aspect of the present invention, wherein the first having a means for cooling the surface temperature control unit, a metal plate laminating apparatus according respectively to the second or third invention.

[0005]

First, the preheated strip 5 and the oriented crystalline resin film 9, 9 are simultaneously passed through the pressure contact portion 1'of the laminating rolls 1, 1. Then, the temperature distribution in the width direction of the strip 5 and the laminating rolls 1 and 1 is measured, the measurement signals 10, 10 and 10 are compared and calculated with the set temperature, and the information 12 is transmitted to the control device 3, and this control device 3 The temperature in the width direction of the surface temperature control device 2, 2 is adjusted by operating the plurality of temperature adjusting devices 2 ', 2', 2'divided by Can be controlled in the direction. Further, as shown in FIG. 6, the laminating rolls 1, 1 are cooled by the cooling means 26.
To cool.

The preheating of the strip 5 is to be gradually increased in the moving direction of the strip 5 by the preheating device 4 and to prevent the vertical and horizontal distortion of the strip 5 due to a rapid temperature rise. It is possible to adjust the distance to the water surface 8 of the laminated strip 5 that has passed through the pressure contact portion 1 ′ of the laminating rolls 1 and 1 in accordance with the transfer speed of the strip 5 and quality conditions.

[0007]

EXAMPLE A pair of laminating rolls 1, 1 pressed against each other
A rewinding coil of oriented crystalline resin film 9, 9 is rotatably supported on both sides of the strip 5, and a strip 5 is provided above both rolls 1, 1.
The preheating device 4 is provided. A quench device 7 for cooling the strip 5 after passing is provided below both rolls 1 and 1. Further, the surface temperature control devices 2 and 2 of the laminating rolls 1 and 1 are provided on the outer surfaces of the laminating rolls 1 and 1, respectively.
Is provided to configure a metal plate laminating apparatus.

The surface temperature control devices 2 and 2 are formed by rolls 2 "and 2" that are in contact with the surfaces of the laminating rolls 1 and 1, and a plurality of temperatures divided in the width direction inside the rolls 2 "and 2". Adjustment devices 2 ', 2', 2'are provided. A dielectric coil is used for the devices 2 ', 2', 2 ', and the central part and both ends of the control devices 2, 2 are independently heated or cooled by induction heating, and the laminating roll 1,
It is formed so that heat can be independently conducted to the central portion and both end portions of the surface of 1.

In the width direction, both edge portions of the strip 5 and both end surfaces of the laminating rolls 1 and 1 are more likely to radiate heat than the central portion, and the temperature is lowered. The amount of oriented crystallinity (BO) of the film 9 is large at both ends of the strip 5 and small at the center, resulting in nonuniformity. A plurality of temperature sensors 14 are arranged in the width direction on the surfaces of the strip 5 and the laminating rolls 1 and 1, and the temperature distribution in the width direction is transmitted by a measurement signal 10 from the sensor 14, which is input to a comparison calculator 11. Comparing calculation with the stored (set) temperature,
The information 12 is input to the current control device 3, and the plurality of temperature adjusting devices 2 ', 2', 2'in the surface temperature control device 2 are operated by the device 3, respectively, so that the surfaces of the laminating rolls 1, 1 are The temperature can be adjusted in the width direction. The surface temperature control device 2 is the roll 2 ″.
There is no problem even if the heating with a hot wire is performed without contact with the laminating roll 1. Further, the surface temperature control device may be incorporated inside the laminating roll without being provided outside the laminating roll.

The preheating device 4 arranges a plurality of heating rolls in parallel in the line direction, brings the strips 5 into contact with the heating rolls, and gradually increases the heating temperature from the starting roll to the terminating roll.
However, this preheating device 4 may be dielectric heating or hot wire heating which is not in contact with the strip 5.

A strip passage cylinder 16 is provided between the pressure contact portion 1'and the lower water tank 15, and the facing surface plate 1 of the cylinder 16 is provided.
A plurality of sets of projections 17, 17 having facing surfaces 17 ', 17' inclined downwardly toward 6 ', 16' toward each other are provided at a plurality of level positions, and between the facing surfaces 17 ', 17'. The water 8 ′ that forms the strip passage gap t and is in the water tank 15
The water surface 8 is formed between the upper and lower protrusions 17, 17 by pumping water between the upper and lower protrusions 17, 17.
7, 17 or lower protrusion 17, 17 or lowermost protrusion 1
It is possible to change the water surface 8 on the water surface 7 and 17 and adjust the rotation speed of the variable speed drive motor 19 of the pump 18 to adjust the water surface 8 (water level) on the projections 17 and 17 up and down. A water level adjustable quench device 13 can be formed. The water tank 15 may be moved up and down to adjust the elevation of the water surface 8. Further, the surface temperature control device 2 is a cooling pipe 2.
Laminating roll 1 with gas 26 "spouted from 6 ',
It is cooled to the required temperature by the surface temperature control device 2 or cooling means 26 for the laminated strip.

Reference numeral 20 in the drawing denotes a pumping pipe, 21 a valve, 22 a turn roll provided in the water tank 15, 23 an air jet coating, 24 a guide roll for the film 9, FIG.
The inside 25 is a surface heating layer of the laminating roll 1.

[0013]

Since the present invention is constructed as described above, when the strip 5 passing through the pressure contact portion 1'of the laminating roll 1 and the oriented crystalline resin film 9 are joined, the temperature control divided in the width direction is performed. The devices 2 ', 2', 2'correspond to the widthwise temperature distribution of the laminating roll and the strip 5
The temperature variation in the width direction can be equalized, and the uneven melting of oriented crystallinity (BO) as shown by the solid line 28 'in FIG.
There is an effect that can be sufficiently corrected as shown in.

Further, since the strip 5 is preheated smoothly, there is no risk of damage due to rapid thermal strain.

Further, it is easy to maintain the set temperature of the strip 5 immediately before the press contact portion 1'of the laminating rolls 1, 1.

The distance from the pressure contact portion 1'to the water surface 8 of the quenching device 7 can be easily adapted to changes in line speed, strip thickness and the like.

[Brief description of drawings]

FIG. 1 is a front view showing a metal plate laminating apparatus of the present invention.

FIG. 2 is an enlarged front view of a laminating roll.

FIG. 3 is a plan view of FIG.

FIG. 4 is a view showing a change in oriented crystallinity in a width direction.

FIG. 5 is a perspective view of a laminating roll and a surface temperature control device.

FIG. 6 is a perspective view of a laminating roll provided with a cooling unit and a surface temperature control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Laminating roll 1'Pressing contact part 2 Surface temperature control device 2'Temperature adjustment device 3 Control device 4 Preheating device 5 Strip 7 Quench device 8 Water surface 26 Cooling means

Claims (4)

[Claims] 1. A laminating device for laminating a metal plate and a film, comprising a strip preheating device, a set of laminating rolls, and a quenching device after laminating, wherein a surface temperature control device of the laminating roll comprises:
A metal plate laminating apparatus comprising a plurality of temperature adjusting devices divided in the width direction of the laminating roll and having means for operating the temperature adjusting device according to the temperature distribution in the width direction of the laminating roll. 2. The metal plate laminating apparatus according to claim 1, wherein in the laminating apparatus, the temperature distribution in the preheating device gradually increases in the moving direction of the strip. 3. The metal plate laminating apparatus according to claim 1, further comprising means for adjusting the distance from the pressure contact portion of the laminating roll to the water surface of the quenching apparatus in the laminating apparatus. 4. The laminating apparatus according to claim 1, further comprising means for cooling the surface temperature control device.
The metal plate laminating apparatus described in each of (3).