JPH0612924Y2 - Device for attaching protective film to belt-shaped ultra-low tension sheet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a device for continuously attaching another protective film to the back surface of a belt-shaped ultra-low tension sheet having an allowable tensile force of 5 g / mm ² , for example. Is.

(Prior Art) A green sheet (hereinafter referred to as "GS") used for manufacturing an electric circuit board is used in a continuous processing / printing line to prevent contamination of the back surface of the GS and leakage of a conductive paste filled in a through hole. A protective film is attached to prevent this.

However, in the past, since it was not possible to continuously convey GS that requires extremely low tension and requires high accuracy without causing any damage or deformation, all of the GS is cut and conveyed, so this protection is required. The film attachment work was performed manually by the worker.

(Problems to be solved by the invention) That is, the pasting by artificial work as in the past has a very poor work efficiency.

In addition, in order to perform the work of attaching the protective film efficiently, it is necessary to continuously convey the strip-shaped GS without cutting it into a short length, but even if the strip-shaped GS can be continuously transported, , G when attaching a protective film to this GS
There is a possibility that the protective film meanders with respect to S, and wrinkles may be generated in the protective film when correcting the meandering. Further, in order to prevent the deformation of the GS when the protective film is attached, it is necessary to suppress the external force within an allowable value with respect to the GS, and there are many problems to be solved.

The present invention has been made in view of the above problems, and continuously protects the belt-shaped ultra-low tension sheet that is continuously conveyed without any damage or deformation and without causing wrinkles. It is intended to provide a device that can be attached.

(Means for Solving the Problems) In order to achieve the above object, a device for attaching a protective film to a belt-shaped ultra-low tension sheet according to the present invention is a rewinding roller of a rotatable protective film and a rewinding roller. A feeding roller for sequentially rewinding and feeding the loaded protective film, and a dancer roller for applying a required tensile force to the protective film fed by the feeding roller are installed at a lower position on the back surface side of the ultra-low tension sheet. A sensor for detecting both end positions of the protective film guided to the back surface side of the rear ultra-low tension sheet after being provided with a required tensile force by the dancer roller, together with the related arrangement on the base,
The protective film is detected by the sensor, and a mechanism for moving the base to match the widthwise position of the conveyed ultra-low tension sheet, as well as a method for attaching the protective film to the back surface of the ultra-low tension sheet, are used. A pair of pressing rollers for applying a required pressing force and a pressing force adjusting mechanism for the pair, and an angle formed by the protective film and the extremely low tension sheet when guiding to the pair of pressing rollers is within a required angle range. It is equipped with a sticking angle adjusting roller that adjusts so that.

(Operation) In the device of the present invention having the above-described structure, the protective film wound around the rewinding roller is provided with the required tension by the feeding roller, the dancer roller, and the sticking surface adjusting roller on the back surface of the ultra-low tension sheet. Guided to the side, and
The sticking position is controlled by the both-end position detection sensor and the base moving mechanism, and the sticking roller paired with the sticking roller continuously sticks to the back surface of the ultra-low tension sheet.

(Embodiment) The present invention will be described below based on an embodiment shown in the accompanying drawings.

In the accompanying drawings, 1 is a tact feed device for intermittently feeding, for example, a strip-shaped GS 2 by clamping it with a pressure that does not roll it from above and below, and a pair of fixed clamp 3 and movable clamp 4, and illustration thereof is omitted. Is a tuned movement mechanism of the paired movement clamps 4, for example, a tact feed motor and a ball screw.

The tact feed device 1 feeds the band-shaped GS 2 in the following order. That is, the fixed clamp 3 is opened and the movable clamp 4 is closed to clamp GS2,
In this state, it moves one pitch. Next, the fixed clamp 3 is closed and the movable clamp 4 is opened. Under this state, the movable clamp 4 returns to its original position. Reference numeral 5 is an opening / closing cylinder device for the fixed clamp 3, and 6 is an opening / closing cylinder device for the movable clamp 4.

The protective film sticking device according to the present invention is provided, for example, between the fixed clamp 3 and the movable clamp 4 forming the pair, and is configured as follows.

Reference numeral 7 denotes a base arranged at a lower position on the back surface side of the GS 2 which is intermittently fed by the tact feeding device 1. The base 7 is provided with a servo motor 9 and a positive signal by a detection signal from both end position detection sensors of a protective film 8 which will be described later. It can move in the width direction of the GS 2 by the ball screw 10 which is rotated in the reverse direction. Then, on the base 7, the rewinding roller 1 for the protective film 8 is formed as follows.
1, a delivery roller 12, a dancer roller 13 and the like are associated with each other.

That is, the rewinding roller 11 is pivotally mounted on the base 7 so as to be rotatable, and the protective film 8 wound around the rewinding roller 11 is also fed to the tact feed by the feeding roller 12 pivotally mounted above the rewinding roller 11. It is designed so that the required amount is sent out in synchronism. This delivery roller 1
Since the adhesive surface of the protective film 8 comes into contact with the surface 2, it is made of Teflon or the like to prevent sticking, and the surface is knurled. Reference numeral 14 is a motor for controlling the rotation of the feed roller 12, and 15 is a biasing force applied to the protective film 8 on the feed roller 12 to prevent the protective film 8 from slipping when the feed roller 12 feeds. It is a presser roller.

Further, the dancer roller 13 is for imparting a tensile force equal to or lower than the allowable tensile force of GS2 to the protective film 8 delivered by the delivery roller 12 in order to prevent slack when the protective film 8 is attached to the GS2. It is sent out to the sticking angle adjusting roller 17 via. Then, the sticking angle adjusting roller 17 optimally controls the angle θ formed by the sending roller 12 and the GS2 when the protective film 8 to which the required pulling force is applied by the dancer roller 13 is stuck to the GS2. Although not shown, the angle θ can be adjusted by, for example, a swinging mechanism. By the way, according to the experiments by the present inventors, the angle θ was good within the range of 10 to 20 °. 10 °
This is because GS2 is stretched by being pulled toward the protective film 8 side by static electricity if it is less than 20, and wrinkles are generated in the protective film 8 at the time of adjusting the angle if it exceeds 20 °.

Reference numeral 18 denotes a sensor that detects the positions of both ends of the protective film 8 immediately before being attached to the back surface of the GS 2, and this detection signal is output to the servo motor 9 for moving the base 7, as described above.

Numeral 19 is applied with a required tensile force by the delivery roller 12 and dancer roller 13, and the sticking angle .theta. Is optimally controlled by the sticking angle adjusting roller 17, and the position in the width direction is set to GS2 by the servo motor 9 and the ball screw 10. The protective film 8 is guided by the pressing force of the protective film 8 and the back surface of the GS 2 with a pressing force of an allowable compression force (50 g / mm ² ) or less. The pressing force is, for example, an air cylinder device. It is adjusted at 20.

The device of the present invention is configured as described above, and the protective film 8 is continuously attached to the back surface of the GS 2 which is tact-fed in the following manner.

That is, the protective film 8 wound around the rewinding roller 11
Is rewound by the delivery roller 12 and delivered to the dancer roller 13. Then, in order to prevent wrinkles from occurring in the dancer roller 13, a tensile force equal to or less than the allowable tensile force of GS2 is applied.

Thereafter, the widthwise position of the protective film 8 is detected by the both-end position detection sensor 18, and the position of the pressing roller 19 is controlled by the servomotor 9 so as to match the position with GS2.
To be attached to the back surface of GS2. In addition, at the time of this attachment, the GS is adjusted by the action of the attachment angle adjusting roller 17.
The angle θ formed by 2 and the protective film 8 is optimally adjusted.

(Effects of the Invention) As described above, by using the device of the present invention, even with respect to the belt-like GS continuously fed by tact, the GS is not damaged, stretched, or the like with high accuracy. A protective film can be attached.

[Brief description of drawings]

The drawing is a schematic perspective view showing an embodiment of the present invention. 7 is a base, 8 is a protective film, 9 is a servomotor, 1
Reference numeral 0 is a ball screw, 11 is a rewinding roller, 12 is a delivery roller, 13 is a dancer roller, 17 is a sticking angle adjusting roller, 18 is both end position detection sensors, and 19 is a pressing roller.

Front page continued (72) Inventor Akira Horiguchi 1-22 Kawaharamachi, Kashiwara, Osaka Prefecture Kashiwabara Machinery Works Co., Ltd. (72) Inventor Ken Isobe 1-22 Kawaramachi, Kashiwara City, Osaka Prefecture Kashiwara Machinery Co., Ltd. (72) Inventor Kazuo Ueno 2701-1, Higashibu, Omine-cho, Mine-shi, Yamaguchi Prefecture Narumi Seito Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A device for continuously sticking a protective film having adhesiveness to the back surface of a belt-shaped ultra-low tension sheet conveyed in a continuous state, comprising a rotatable rewinding roller for the protective film, A feeding roller for sequentially rewinding and feeding out the protective film wound around the rewinding roller, and a dancer roller for applying a required tensile force to the protective film fed by the feeding roller are provided on the lower side of the back surface of the ultra-low tension sheet. A sensor for detecting both end positions of the protective film guided to the back side of the rear ultra-low tensile strength sheet, which is provided with a required tensile force by the dancer roller, while being arranged on the base installed at a position, A machine for moving the base so that the protective film is aligned with the widthwise position of the conveyed ultra-low tension sheet by the detection signal of this sensor. And a pair of pressing rollers and a pressing force adjusting mechanism for applying a required pressing force to the protective film when the protective film is attached to the back surface of the ultra-low tensile sheet, and the pair of pressing rollers. An apparatus for attaching a protective film to a belt-shaped ultra-low tensile strength sheet, which is provided with a sticking angle adjusting roller for adjusting an angle formed by the protective film and the ultra-low tensile strength sheet within a required angle range.