JPH05212B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a laminator, and particularly to a technique that is effective when applied to a technique for attaching a film to a substrate.

[Prior Art] In this type of conventional laminator, the substrate is transported to the continuous film attachment position of the laminator,
The leading end of the continuous film is suctioned and conveyed to the continuous film attachment position by a suction member, and the continuous film is attached to the front end of the substrate in a manner corresponding to the length of the substrate. The film sheet is cut to form a film sheet, and the cut film sheet is successively attached to the substrate (see Japanese Patent Laid-Open No. 14876/1983).

[Problems to be Solved by the Invention] However, in the conventional laminator, when attaching the leading end of the continuous film to the front end of the substrate, the leading end of the continuous film after cutting and separating the film sheet is There were cases in which the tip of the suction member was not reliably held, resulting in a problem of deterioration of quality.

The present invention has been made to solve the above problems.

SUMMARY OF THE INVENTION An object of the present invention is to provide a technique that can reliably hold the leading end of a continuous film after cutting and separating the film sheet on the leading end of the suction member.

Another object of the present invention is to provide a technique that can improve work efficiency and quality.

The above and other objects and novel features of the present invention are explained by the following description of the specification and the accompanying drawings.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a means for transporting a substrate to a continuous film attachment position of a laminator, and a suction member to hold the leading end of the continuous film to the continuous film attachment position. means for suctioning and transporting the continuous film by suction, means for cutting the continuous film in a manner corresponding to the length of the substrate with the leading end of the continuous film attached to the front end of the substrate, and means for cutting the continuous film in a manner corresponding to the length of the substrate; In the laminator, the means for attaching the leading end of the continuous film to the front end of the substrate includes means for attaching the leading end of the continuous film to the front end of the substrate by attaching the leading end of the continuous film after cutting and separating the film sheet to a second suction member. and in this suctioned state, move the second suction member toward the adhesion tip of the first suction member to ensure that the tip of the continuous film is attached to the adhesion tip of the first suction member. The main feature is that it is retained.

[Operation] According to the above-mentioned means, the leading end of a continuous film is attached to the front end of the substrate, and the leading end of the continuous film after cutting and separating the film sheet is sucked by the second suction member, and this sucked In this state, the second adsorption member is moved toward the adhesion tip of the first adsorption member, so that the tip of the continuous film is moved toward the adhesion tip of the first adsorption member.
It can be held securely by the adhesion tip of the adsorption member. This makes it possible to improve work efficiency and improve quality.

[Examples] Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing the main parts of an autolaminator according to an embodiment of the present invention, and the plate thickness is usually 1.6 mm.
The substrate 1 of around mm is transported by the entrance side feed roll 2.
Films 4, 4, which are sent in the direction of the arrow 3 and sent from both the top and bottom sides of the substrate 1, are laminated by thermocompression bonding by a pair of heat rolls 5, 5, which are made of induction heating jacket rollers.
It is configured to be sent out by a feed roll 6.

Since these devices are arranged symmetrically on both the upper and lower ends of the substrate 1, the upper side of the substrate 1 will be described below for convenience of explanation.

In the feeding device for the film 4, a film formed of three layers including a photoresist layer as an intermediate layer, a polyethylene layer and a polyethylene terephthalate film layer on the surface is wound around a take-up roll 7, and polyethylene is removed from the film layer. A take-up roll 8 is used to remove the layer. Furthermore, in order to feed a predetermined length of film 4 to a predetermined length of substrate 1, a free roller 9 is used which moves its position up and down, and the film 4 is fed to a newly conveyed substrate 1. Each time the free roller 9 is moved, the free roller 9 moves under tension from a position 9a to a position 9b shown in the figure, and feeds the film 4 of a fixed length corresponding to the amount of displacement to the substrate 1. .

A main vacuum plate 10 is provided vertically below the free roller 9. The main vacuum plate 10 has a vacuum chamber integrally formed therein and applies a suction force to the surface of the vacuum chamber. It is connected to the cylinder 11 (the piston rod thereof) via a connecting member 12 so as to be movable in the vertical direction, and when the vacuum chamber inside thereof is communicated with a vacuum pump (not shown), the main vacuum plate 10 It is constructed so that the film 4 can be attracted to the film 4 by suction. 7 Said first air cylinder 11
are connected to a second air cylinder 15 via connecting members 14a and 14b, and furthermore, connecting members 14a and 14b are also connected to the second air cylinder 15.
The rotary cutter device 16 and the sub-vacuum plate 17 that faces the cutter 16a of the cutter device 16, has an adsorption effect on its surface, and is located below the tip 10a of the main vacuum plate 10. The third air cylinder 1 operates in the horizontal direction via the piston rod 18a.
It is connected to 8. The tip end 10a of the main vacuum plate 10 has an arcuate cross section, and has a built-in heater 13.

Further below the sub-vacuum plate 17, a nozzle plate 19 is provided at a rear position in the advancing direction of the heat roll 5 and the substrate 1 facing thereto.
9 prevents the rear end of the film 4 cut by the cutter 16a from hanging down, and allows the rear end of the cut film 4 to be properly attached to the substrate 1 without bubbles or wrinkles. In order to ensure the effect, a small amount of air is blown toward the heat roll 5.

FIG. 2 is an enlarged cross-sectional view of a main part showing an embodiment of the driving device for the heat rolls 5. The pair of heat rolls 5, 5 are connected to a pair of transmission gears 2 that mesh with each other.
1 and 21 are respectively attached to a pair of frames 23 and 23 so as to be rotationally driven via an intermediate gear 22, and both frames 2
3 and 23 are mutually oscillated by a fluid pressure cylinder 24 about the rotation axis of the transmission gear 21 so that the opposing distance between the pair of heat rolls 5 and 5 is adjusted. One of the transmission gears 21 is connected to a rotating shaft of a drive motor. These mechanisms are connected to the piston 26 of the fluid pressure cylinder 25,
It is attached via a moving body 27, and is configured to move in parallel to the traveling direction of the substrate 1 by the action of the fluid pressure cylinder 25.

In addition, in the figure, 28 indicates a guide member.

The operation order according to this embodiment is as follows. Note that, for convenience of explanation, the upper side of the substrate will be described, but exactly the same operation is performed on the lower side.

() Of the film 4 composed of the three layers wound on the take-up roll 7, after the polyethylene layer is taken up on the take-up roll 8, the leading end of the film 4 is first manually At,
Lower the main vacuum plate 10 to the tip 10a, that is, the cutter 16a.

() When the substrate 1 is conveyed to the fixed position by the inlet side feed roll 2, the inside of the subvacuum plate 17 is communicated with the vacuum pump, so that
The suction force attracts the tip of the pulled-down film 4 (when continuous operation is performed, the film 4 cut by the cutter 16a), and the tip is transferred to the third air cylinder 18 while being sucked. By moving the film 4 backward, the leading end of the film 4 is moved to the leading end 10a of the main vacuum plate 10 where the vacuum suction action is working.
Wrap it around the arcuate surface of. At the same time, a film of a length that allows some leeway in the stroke of the main vacuum plate 10 is slackened by the free roller 9.

When the leading end of the substrate 1 is conveyed to a position almost directly below the main vacuum plate 10, the rotation of the entrance side feed roll 2 is stopped, and thereby the substrate 1 is stopped. Next, two pressing members hang down (not shown) and press the substrate 1.

() The first air cylinder 11 is operated to lower the film 4 adsorbed to the arcuate surface of the main vacuum plate 10, especially the tip 10a, to the position of the substrate 1.
Temporarily heat and press.

() After the leading end of the film 4 is temporarily thermocompressed to the substrate 1, the vacuum adsorption action of the main vacuum plate 10 is temporarily stopped, and with the film 4 free, the main vacuum is removed by the first air cylinder 11. Lift the lift plate 10 upward from the substrate 1. At this time, the second air cylinder 15 also operates, and the rotary cutter device 1
6. The subvacuum plate 17 and the connecting member 14a of the first air cylinder 11 also move upward away from the substrate 1.

() The main vacuum plate 10 is the substrate 1
At the same time as the heat roll 5 moves away from the film 4 by a predetermined distance upwardly, the heat roll 5 approaches the substrate 1, rotates while clamping the substrate 1 to which the tip of the film 4 is temporarily thermocompression bonded, thermocompression bonds the film 4, and sends it out.
At this time, the vacuum suction action of the sub-vacuum plate 17 is stopped, and the sub-vacuum plate 17 returns to its original position on the left side of the figure, facing the cutter 16a.

() With the film 4 sufficiently clamped by the heat roll 5 (during this time, the film 4 is laminated continuously on the substrate 1), the free roller 9 returns to its original position 9a.

() When a certain amount (a certain length) of the film 4 is fed in, the second air cylinder 15 is activated, and the entire apparatus begins to descend and approach the substrate 1. At this time, the film 4 is vacuum-adsorbed by the main vacuum plate 10 and the sub-vacuum plate 17, and the film 4 is laminated onto the substrate 1 by the main vacuum plate 10 and the sub-vacuum plate 17 by the second air cylinder 15. It descends at a speed greater than the speed (equal to the circumferential speed of the heat roll 5). When descending to a certain position (lowest point), the main vacuum plate 10 and the sub vacuum plate 17
stops descending. At this point in time, the subvacuum plate 17 and the heat roll 5 are
The film 4 is in a slack state between the two. Film 4 in this slack state
During the period until the part of the film is completely sent to the heat roll 5, the part of the film located in the cutter unit is in a stopped state, so the cutter (rotary cutter) 16a is moved in the width direction of the continuous film 4. As a result, the film 4 in the stopped state is cut.

In addition, the cutter 1 is integrated with the main vacuum plate 10 and the sub vacuum plate 17.
6a is lowered, and its lowering speed is set to be substantially constant or slightly higher than the circumferential speed of the heat roll 5, and the cutter 16a is moved in the width direction of the continuous film during the downward stroke process. You may also cut it while doing so. In this case as well, since the film 4 and the cutter 16a located in the cutter unit do not move relative to each other in the film feeding direction, the film can be cut in the same manner as in the case of the film in the stopped state.

() Film 4 cut as described above
In order to prevent the cut film from hanging down and to ensure normal pressure bonding without bubbles or wrinkles when the cut film is thermocompression bonded to the substrate at the rear end, air is directed from the nozzle plate 19 toward the heat roll 5. is blown out. Note that by adjusting the amount of air blown from the nozzle plate 19, etc., the pressure flow rate and direction of the minute air can be adjusted.

() Thereafter, the clamping action of the heat rolls 5 is released, and the pair of heat rolls 5, 5 separate from each other and return to their original positions. At this time, the first
The third air cylinders 11, 18 have been returned to the position of the next preparation stage (the position shown in FIG. 1).

In the above embodiment, a free roller 9 that receives a tension action is used to smoothly feed the film 4, but this free roller is not necessarily necessary, and other means can be used instead. Of course, the design of the moving device can be changed as appropriate, such as using hydraulic cylinders instead of the first to third air cylinders 11 and 18. Note that the arcuate curved surface formed at the tip of the main vacuum plate 10 may have any shape as long as it allows the tip of the film 4 to be temporarily thermocompressed onto the substrate 1, and the shape is not limited to an arcuate cross section. It is.

〔Effect of the invention〕

As explained above, according to the present invention, the leading end of the continuous film is attached to the front end of the substrate, and the leading end of the continuous film after cutting and separating the film sheet is sucked by the second suction member. Since the second suction member is moved in the direction of the attachment tip of the first suction member in this state, the tip of the continuous film can be reliably held on the attachment tip of the first suction member. This makes it possible to improve work efficiency and improve quality.

[Brief explanation of drawings]

FIG. 1 is a side view showing essential parts of an autolaminator according to an embodiment of the present invention, and FIG. 2 is an enlarged view of essential parts showing an embodiment of a heat roll drive device used in the autolaminator of FIG. 1. FIG. In the figure, 1... substrate, 4... film, 5... heat roll, 10... main vacuum plate, 10a... tip of main vacuum plate, 11... first air cylinder, 15... th... 2
Air cylinder, 16... Rotary cutter device, 17... Subvacuum plate, 18...
Third air cylinder, 19...nozzle plate.

Claims (1)

[Claims] 1 A means for transporting the substrate to a continuous film adhesion position of a laminator, a means for transporting the continuous film to the continuous film adhesion position by suctioning the leading end of the continuous film with a suction member, and a means for transporting the continuous film to the front end of the substrate. A laminator comprising: means for cutting the continuous film according to the length of the substrate in the attached state; and means for sequentially attaching the cut film sheets to the substrate; The means for attaching the leading end of the continuous film to the film sheet is to suck the leading end of the continuous film after cutting and separating the film sheet with a second suction member, and in this suctioned state, move the second suction member to the first suction member. A laminator, characterized in that the continuous film is moved in the direction of the adhesion end to ensure that the end of the continuous film is held in the adhesion end of the first suction member.