JP2956932B2 - Film sticking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film sticking device, and more particularly, to a film sticking device for a substrate such as a substrate for a printed wiring board, a glass substrate for a liquid crystal panel, or a substrate for a plasma display. It relates to a sticking device.

[0002]

2. Description of the Related Art As shown in FIG. 4, for example, a film sticking apparatus such as the one shown in FIG.
After the cover film 16C is peeled off from the laminated film 16 formed by laminating the photosensitive resin layer 16B and the cover film 16C thereon, heat is applied by a lamination roll such that the photosensitive resin layer 16B is in close contact with the substrate. It is a type that performs pressure bonding, but a type in which the laminated body film 16 is cut in advance according to the substrate length and then thermocompression-bonded, and a type in which the substrate is sequentially transported at intervals and without cutting the film along this There is a continuous tension type in which both are supplied in a superimposed manner, are fed between a pair of rotating lamination rolls, and are thermocompression-bonded.

In a preparatory stage before the start of the laminating operation, a pair of lamination rolls in the film laminating apparatus are preheated while providing a gap between them and running idle without passing a film through the gap. Also, when the substrate is not supplied during the operation, a gap is provided between the pair of lamination rolls, and the lamination rolls are rotated while being heated, but the film is still passed through the gap.

In a film sticking apparatus of a type in which the film is continuously supplied without cutting the film, the film is always kept in a state of penetrating between a pair of lamination rolls. Since the substrate is supplied along the transport surface, the substrate is supplied obliquely with respect to the substrate transport surface.

Accordingly, the film comes into contact with one of the lamination rolls at a constant winding angle.

[0006]

For this reason, if the lamination roll is idled when it is not thermocompression-bonded, the lamination roll comes into contact with the film and gets caught in the lamination roll, or wrinkles on the film even when it is not caught. And loosening occurs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a continuous stretching type film sticking apparatus which prevents a film from contacting the lamination roll when the lamination roll runs idle. Aim.

[0008]

According to the present invention, there is provided a substrate transporting means for sequentially transporting a substrate at intervals along a substrate transporting surface, and a film along one surface of the substrate transported by the substrate transporting means. And a pair of lamination rolls facing each other with a gap when the thermocompression bonding is not performed while sandwiching the conveyed substrate and film in a superposed state, and A film guide roll arranged at a position close to one entry side of the lamination roll and capable of contacting and guiding the film, wherein the film guide roll is configured to wind the film to one lamination roll with a predetermined winding angle. Feeding in a state where it is guided to be wound around, or in a state where it is not in contact with the film Position, and said film guide roll, a film lamination roll and the non-contact,
And a swing lever for swingably supporting the film guide roll between the retracted positions for guiding the film guide roll so as to be on the substrate transfer surface; The above object is achieved by a film sticking device having a lever driving device that drives to the retracted position when pressure bonding is not performed.

That is, when the film is not thermocompression-bonded at the entry side of the lamination roll, the film guide roll near one of the lamination rolls is moved onto the substrate transfer surface, so that the film is not moved against the lamination roll in the idling state. It can be kept in contact, thereby preventing the film from winding, bending or wrinkling.

According to a second aspect of the present invention, in the first aspect of the present invention, the film guide roll guides the film such that the film is wound around one lamination roll at a winding angle of 180 ° or less.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the delivery side of the pair of lamination rolls includes:
A nip roll for holding the film on the substrate transport surface is provided.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An example of the embodiment will be described in detail.

As shown in FIG. 1, a film sticking apparatus 10 according to this embodiment includes a substrate for a printed wiring board,
A substrate transport device 14 for sequentially delivering a substrate 12 made of a glass substrate for a liquid crystal panel or a substrate for a plasma display panel at intervals along a substrate transport surface II;
Film supply means 18 for continuously supplying the film 16 along the upper surface of the substrate 12 conveyed by the substrate conveyer;
6 and a pair of upper and lower lamination rolls 20A and 20B which are sandwiched from above and below by thermocompression bonding.
And is provided.

The film supply means 18 is located near the entry side of the upper lamination roll 20A.
A film guide roll 22 is provided to guide the film 16 so that the film 16 is supplied at a winding angle of about 90 ° to the lamination roll 20A.

Here, the lower lamination roll 2 of the pair of lamination rolls 20A and 20B is used.
OB is driven between a pressing position where the other lamination roll 20A is pressed by the roll opening / closing device 24 and a retracted position where the separated lamination roll 20A is out of contact.

The film guide roll 22 is provided with a swing lever 26 near the upper lamination roll 20A.
The swing lever 26 is rotatably supported by a swing shaft 26A.

The swinging lever 26 is driven by a lever driving device 28 composed of an air cylinder, and is driven downward in the figure, and as shown in FIG.
A, when it comes into contact with film guide roll 2
2 is the position on the substrate transfer surface II (the retreat position)
When the film is swung upward in the figure, the film winding angle at which the film is wound around the lamination roll 20A from the film guide roll 22 is approximately 90 degrees.
Is driven to a position (winding position; feeding position).

The pair of lamination rolls 20A,
A pair of upper and lower nip rolls 30A, 30B are arranged on the substrate transfer surface II on the output side of the substrate 20B, and a state where a constant tension is applied to the film 16 between the lamination rolls 20A, 20B during thermocompression bonding. The film 16 is maintained substantially parallel to the substrate transfer surface II.

Reference numeral 32 in the figure denotes a control device, which is controlled by the roll opening / closing device 24 so that the lower lamination roll 20B
Is driven in the opening direction from the upper lamination roll 20A, the swing lever 26 is driven to the retracted position, and the lamination roll 20B is moved to the lamination roll 20A.
When pressed by A, the swing lever 26 is driven to the winding position (feed position).

Reference numeral 24A in the figure denotes a roll lever for supporting the lower lamination roll 20B so that it can swing freely within a certain range. Reference numeral 24B drives this roll lever to move the lamination roll 20B to the lamination roll 20A. The air cylinder device 24C driven to the pressing position and the separating position indicates the swing center axis of the roll lever 24A.

Reference numeral 34 in the figure denotes an upper nip roll 30A of the pair of nip rolls 30A and 30B,
5 shows a nip roll driving device for driving the lower nip roll 30B so as to press it. This nip roll driving device has a substantially L-shaped nip roll lever 34A.
By swinging one end of the L-shape by the air cylinder 34C around the swing shaft 34B at the L-shape corner,
The nip roll 30A at the other end of the L-shape is pressed against the nip roll 30B.

1 is a guide roll for guiding the film, 38 is a take-up roll for winding the cover film 16A peeled off the film 16, and 40 is a cover for peeling the cover film 16A from the film 16. Each of the film peeling members is shown.

Next, the operation of the film sticking apparatus 10 will be described.

Substrate transfer device 1 along substrate transfer surface II
4, the film supply means 18 continuously transports the substrate 12 in the direction of the lamination rolls 20A, 20B at a constant interval, and at the same time, passes the lamination rolls 20A, 20B in advance and the upper lamination rolls 20A, 20B by the film supply means 18. The film 16 is continuously supplied at an angle of about 90 °.

A pair of lamination rolls 20A, 20
B indicates that the substrate 12 sandwiched between the two lamination rolls 20B is pressed by the other lamination roll 20A by the roll opening / closing device 24.
The thermocompression bonding is performed while rotating and transporting the film 16.

At this time, the film guide roll 22
As shown by the solid line in the drawing, the film reaching the lamination roll 20A via the film guide roll 22 is supplied to the lamination roll 20A by the lever driving device 28 at a winding angle of about 90 °.

During the preheating of the lamination rolls 20A and 20B prior to the film sticking operation or during the operation, the substrate 1
When the lamination roll 20B is in a standby state in which the lamination roll 20B is not conveyed, the lamination roll 20B is opened from the lamination roll 20A by the roll opening / closing device 24 to the retracted position, where it is heated and idled.

At this time, the control device 32 outputs a control signal to the lever drive device 28 to move the swing lever 26
The film guide roll 22 supported on the leading end is driven so as to be in the retracted position on the substrate transfer surface II, as shown by the two-dot chain line in the figure.

Accordingly, the film 16 is formed by the nip roll 30
A and 30B and the film guide roll 22 are stretched substantially along the substrate transfer surface II.

At this time, since the film guide roll 22 is on the substrate transfer surface II, the film guide roll 2
The film 16 which is in contact with the outer periphery of 2 is stretched in the vicinity of the lamination roll 20A while being slightly separated from the substrate transfer surface II. Therefore, even if the lamination rolls 20A and 20B spin while being heated, the film 16 does not come into contact with the surface thereof.

When the laminating rolls 20A and 20B are in contact with each other and the film sticking operation is performed, the swing lever 26 is driven by the control device 32, and the film guide roll 22 is wound at the winding position (shown by a solid line in the drawing). (Feed position).

In the above example, the film 16 is thermocompression-bonded to the upper surface of the substrate 12, but is not limited to the present invention. The attachment device is naturally applied.

In the state where the film guide roll 22 guides the film 16 so as to be wound around the lamination roll 20A, the winding angle is set to approximately 90 °, but the present invention is not limited to this. Not 18
The winding angle may be 0 ° or less. Winding angle is 18
When the angle exceeds 0 °, the film guide roll is provided on the opposite side to the film 16 with respect to the film 16. In this case, the film guide roll cannot guide the film 16 on the substrate transport surface.

In the case where another film guide roll is provided in the vicinity of the film guide roll 22,
For example, as shown in FIG.
May be non-contact.

[0035]

Since the present invention is constructed as described above, in a continuous stretching type film sticking apparatus, it is possible to prevent the film from coming into contact with these lamination rolls when the lamination rolls idle, so that film winding and wrinkling are prevented. It has an excellent effect of preventing the occurrence of loosening and damage.

[Brief description of the drawings]

FIG. 1 is a side view showing a film sticking apparatus according to an example of an embodiment of the present invention.

FIG. 2 is an enlarged side view showing a main part of the film sticking apparatus.

FIG. 3 is a schematic side view showing a main part of an example of another embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view showing an example of a film used in a film sticking apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Film sticking apparatus 12 ... Substrate 14 ... Substrate conveying apparatus 16 ... Film 18 ... Film supply means 20A, 20B ... Lamination roll 22 ... Film guide roll 26 ... Swing lever 28 ... Lever drive device 30A, 30B ... Nip roll 32 ... Control device II: board transfer surface

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ identification code FI B29L 31:34 (58) Investigated field (Int.Cl. ⁶ , DB name) B29C 65/00-65/78 B29C 63/02 H05K 3/28 B32B 31/00-31/28

Claims (3)

(57) [Claims] 1. A substrate transport means for transporting a substrate sequentially at intervals along a substrate transport surface, and a film supply for continuously supplying a film along one surface of the substrate transported by the substrate transport means. Means, the substrate and the film being conveyed are sandwiched in a superimposed state and both are thermocompression-bonded, and when not thermocompression-bonded, a pair of lamination rolls facing each other with a gap, and one of the lamination rolls on one side. A film guide roll that is arranged at a close position and is capable of contacting and guiding the film by contacting the film, wherein the film guide roll guides the film to be wound around one lamination roll with a predetermined winding angle, Or a feed position in one of a non-contact state with the film, and A swinging lever for swingably supporting the film guide roll between a retracted position where the roll does not contact the lamination roll and guides the film so as to be on the substrate transfer surface; and the swinging lever. A lever drive device for driving the film to the feed position during thermocompression bonding, to the retracted position when not performing thermocompression bonding,
A film sticking device comprising: 2. The film tensioning device according to claim 1, wherein the film guide roll guides the film at the film feed position such that the film is wound around the one lamination roll at a winding angle of 180 ° or less. Attachment device. 3. The film sticking apparatus according to claim 1, wherein a nip roll for holding the film on the substrate transfer surface is provided on an exit side of the pair of lamination rolls.