JPH0699503A - Connecting method in time for replacing film for laminator - Google Patents

Abstract

PURPOSE:To surely connect a film for a laminator in a short time by peeling a release layer, thereafter inserting double-coated adhesive tapes between a photosensitive dry film and a protective film being in a state wherein the other end parts are opened and respectively connecting the preceding and following photosensitive dry films with the preceding and following protective films with the adhesive layers. CONSTITUTION:Double-coated adhesive tapes 40 are stuck on the respective opposite faces of a photosensitive dry film 16A and a protective film 16B in the film pulling-out end part 38 of a film for the following laminator and covered with release paper 42. Thereafter the rear end part 39 of a film for a preceding laminator is inserted into the film pulling-out end part 38 being in an opened state. The mutual photosensitive dry films 16A and the mutual protective films 16B of the films for the preceding and following laminators are independently connected by double-coated adhesive tapes 40. Thereby the films are connected easily and accurately.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting a laminator film at the time of replacement for laminating a photosensitive dry film (film) on the upper and lower surfaces of a printed wiring board substrate by pressure bonding.

[0002]

2. Description of the Related Art A laminator is usually used for printed wiring by setting a film roll for a laminator, which is formed by winding a photosensitive dry film, which is covered on one side with a protective film, in a roll shape, and rewinding each film roll. A photosensitive dry film is supplied and pressed onto the upper and lower surfaces of the substrate.

For example, Japanese Patent Laid-Open No. 3-205134,
As disclosed in JP-A-4-27545, the film rewound from the laminator film roll is
The protective film is peeled off by the film separating member, and the photosensitive dry film is supplied to the laminator body while the peeled protective film is wound up by the winding roller.

Since the winding length of the film roll for laminator is finite, naturally, when the film is completely rewound, the film roll for laminator is replaced by the following film roll.
You need to supply a new film. Also, when the remaining amount of film becomes extremely small, or when it is necessary to change the type and brand of film supplied to the laminator body according to the application, replace the film roll for laminator and replace the new film. Need to supply.

Conventionally, in this replacement, when it is time to replace the preceding laminator film roll, the laminator is stopped, the preceding laminator film roll is removed, and the leading end of the film drawn from the new laminator film roll is It was necessary to manually set the film separating member and the tension roller to the position of the thermocompression-bonding roller through each roller of the film supply path.

[0006]

For this reason, conventionally, for example, it takes 10 minutes to replace the upper and lower laminator film rolls that have been unwound in 2 hours, and the so-called setup time occupies the actual operation time. Is very large, which not only lowers the operating rate of the laminator, but also lowers the efficiency of the entire line.

On the other hand, there is a film roll unit for a laminator in which a film is exchanged in a short time, as disclosed in Japanese Utility Model Laid-Open No. 3-15131, which includes a film roll and a protective film. The take-up roll and the guide roll are unitized and replaced at the same time, and the step of manually setting the tip of a new film cannot be omitted. Also, it cannot be applied when the weight of the film roll is large.

The present invention has been made in view of the above-mentioned problems of the prior art. Even when the film roll for a laminator has a large weight, it can be replaced quickly and reliably.
In particular, it is an object of the present invention to provide a connection method at the time of exchanging a film for a laminator, which is capable of improving efficiency by omitting a new film tip setting step.

[0009]

SUMMARY OF THE INVENTION The present invention rewinds a laminator film from a laminator film roll obtained by winding a laminator film consisting of a photosensitive dry film covered on one side with a protective film. Meanwhile, the protective film is peeled off by a film separating member, the peeled protective film is wound up by a winding roller, and the photosensitive dry film is supplied to the laminator body. When replacing the film roll for the laminator, one end of the film trailing end of the film roll for the following laminator that is exchange-supplied with the film rear end of the film roll for the preceding laminator, the photosensitive dry film described above. Pre-install on one side and on one side of the protective film An adhesive layer and a release layer covering the adhesive layer are formed, the photosensitive dry film and the protective film are opened at the end portions, the release layer is peeled off, and then the other end portion is in the open state. It is inserted between a photosensitive dry film and a protective film, and the adhesive layer connects the preceding photosensitive dry film and the following photosensitive dry film, and connects the preceding protective film and the following protective film, respectively. The above-mentioned object is achieved by the connecting method at the time of exchanging the film for laminator.

In the invention of claim 2, the release layer is one release layer interposed between the adhesive layer on the photosensitive dry film side and the adhesive layer on the protective film side. ,
The above object is achieved.

Further, the invention of claim 3 is such that the release layer protrudes from a longitudinal edge of the one end, which is sandwiched in advance between the adhesive layers, and reaches at least the vicinity of both ends in the width direction. The above-mentioned object is achieved by using the releasable sheet of 1., extracting the releasable sheet, and connecting the films for the leading and trailing laminators.

Further, the invention of claim 4 achieves the above object by making the release sheet have a size protruding from both end edges in the width direction of the one end portion.

Further, the invention of claim 5 achieves the above-mentioned object by arranging the release layer so as to have a size protruding from the adhesive layer and projecting from a longitudinal end of the laminator film. Is.

According to a sixth aspect of the invention, one end edge of the adhesive layer of the photosensitive dry film and the protective film is arranged so as to coincide with one of the end edge of the lead-out end and the end edge of the rear end. By doing so, the above object is achieved.

Further, in the invention of claim 7, the pressure-sensitive adhesive layer of the photosensitive dry film and the protective film and the release layer covering the adhesive layer are formed at the leading end of the film for the following laminator. It achieves the purpose.

The invention according to claim 8 achieves the above object by disposing the adhesive layers of the photosensitive dry film and the protective film intermittently in the width direction of the end portion of the laminator film. is there.

Further, the invention of claim 9 achieves the above object by continuously disposing the adhesive layers of the photosensitive dry film and the protective film in the width direction of the end portion of the laminator film. is there.

Further, in the invention of claim 10, the protective film is wound on the winding roller, and the protective film is cut on the winding roller to remove the winding roller. Is achieved.

Further, in the invention of claim 11, after removing the winding roller, the leading laminator film is cut in the vicinity of the winding roller set position to form a rear end portion, The above object is achieved.

Further, in the invention of claim 12, the film trailing end of the film roll for the preceding laminator is held by a holding means in the vicinity of the film roll for the preceding laminator, and the film roll for the preceding laminator is trailed. The above object is achieved by replacing the film roll for a laminator and connecting it to the film pull-out end of the film roll for a subsequent laminator.

[0021]

According to the invention of claim 1, the photosensitive dry film and the protective film are provided at one end of the film trailing end of the film roll for the preceding laminator and one of the film pulling end of the film roll for the following laminator. An adhesive layer and a release layer covering it are provided in advance on the contact surface of, and at the time of replacement, open this to peel off the release layer, and then bond the other end with the adhesive layer to advance and follow. The photosensitive dry film and the protective films of the leading and trailing sides are separately connected, and following the preceding film, the protective film is peeled off by the film separating member and wound up by the winding roller. The dry film can be supplied to the laminator body through a predetermined supply path. There is no need to manually set the trailing film in the supply path.

According to the second aspect of the invention, since the number of the release layer is one, the adhesive layers are provided on both sides of the release layer in advance, and the adhesive layer is sandwiched between the photosensitive dry film and the protective film. An adhesive layer can be attached to these film sides, which facilitates pre-installation work and peeling work of the release layer.

According to the invention of claim 3, since the release sheet is inserted between the adhesive layers at the one end,
Using this as a guide, the other end can be inserted and joined. The film is very wrinkle-prone and difficult to handle, but by using the releasable sheet, the film is stretched and connected, so that the film can be easily and accurately connected.

According to the fourth aspect of the present invention, the release sheet protrudes from both edges in the width direction of the end of the opened film, so that the film can be opened very easily.

According to the invention of claim 5, the release layer can be easily peeled off, and the work for opening the gap between the photosensitive dry film and the protective film can be facilitated.

According to the invention of claim 6, one edge of the adhesive layer is arranged so as to coincide with the edge of the photosensitive dry film and the protective film to be opened, so that the edge of these films is the edge of the adhesive layer. The film is not covered and therefore the films are easy to open.

According to the invention of claim 7, since the adhesive layer and the release layer are provided at the pull-out end of the film for the subsequent laminator, the adhesive layer and the release layer are attached outside the line in advance, and At this portion, the space between the photosensitive dry film and the protective film at the pull-out end can be easily opened.

According to the invention of claim 8, since the adhesive layer is provided intermittently in the width direction of the end portion of the laminator film, the work of attaching the adhesive layer is easy and
The protective film that has once peeled off will not be unevenly attached to the photosensitive dry film.

According to the ninth aspect of the invention, since the adhesive layer is continuously formed in the film width direction, the leading and trailing films can be reliably connected.

According to the tenth aspect of the invention, since the protective film is cut on the take-up roller, the cutting operation is easy.

According to the eleventh aspect of the invention, after the take-up roller is removed, the film for the preceding laminator is cut in the vicinity of the take-off position, so that the cutting operation is easy.

According to the twelfth aspect of the present invention, since the cut film rear end portion is held near the laminator flume roll, connection work is easy.

[0033]

Embodiments of the present invention will be described below with reference to the drawings.

First, a laminator 1 as shown in FIG.
The process of rewinding the film from the laminator film roll 14 attached to the film supply roller 12 and supplying the film to the laminator body 10 will be described.

Since the respective members of the laminator 10 are vertically symmetrically arranged, only the upper roller system will be described, and the lower roller system will not be described.

The film 16 rewound from the laminator film roll 14 attached to the film supply roller 12 is a protective film made of a light-transmissive resin film as a photosensitive dry film 16A, as shown in an enlarged view in FIG. 16B are stacked, and the guide roller 18
Through the guide roller 18 and the next tension roller 20, the film separating member 2 having a substantially triangular shape.
2, the protective film 16B is peeled off from the photosensitive dry film 16A.

The peeled protective film 16B passes the outside of the film supply roller 12 via the guide roller 24 and is wound up by the winding roller 26. The outer peripheral speed of the winding roller 26 is the same as that of the film supply roller 1.
It is adapted to match the unwinding outer peripheral speed of the film roll for laminator mounted on No. 2.

The photosensitive dry film 16A from which the protective film 16B has been peeled is bent downward at a right angle by the tension roller 20, and then the leading end thereof is adsorbed to the main vacuum plate 28, and the main vacuum plate 28 is adsorbed.
Is pulled out to the feed line of the printed wiring board 30 in a state of being adsorbed on the drive wire 3 and the rear end thereof is cut by the rotary cutter 32.
4A and the vertical movement roller 34B, the printed wiring board 30 sent to the right in the drawing is superposed on the printed wiring board 30 from the upper surface, and the thermocompression roller 36 presses the printed wiring board 30 to the upper surface. In this way
It is successively unwound by the main vacuum plate 28, cut into a predetermined length, and thermocompression bonded to the printed wiring board 30.

When the film 16 is unwound from one laminator film roll 14 and the remaining amount of the film is below a certain value, the laminator 10 is stopped. The peeled protective film 16B fed along the outside of the laminator film roll 14 and taken up by the take-up roller 26 is cut on the take-up roller 26, and the take-up roller 26 is taken off. It The other end of the cut protective film 16B hangs downward from the guide roller 24 in the lower left of the figure.

Next, the film 16 is pulled out to the upper left of the drawing from the vicinity of the removed position, and is cut in the width direction of the film at the pulled out portion. The preceding film 1 formed by cutting
The rear end portion 39 of 6 is sucked and held by the suction bar 37 disposed near the film supply roller 12 and on the film downstream side of the winding roller 26 in both the upper roller system and the lower roller system. (See Figure 3).

The suction bar 37 is arranged in the frame of the laminator 10 in the axial direction of the film supply roller 12 in parallel with it and over the substantially entire width of the film 16 and has a large number of fine air on its surface. A suction hole 37A is formed to suck and hold the film rear end portion 39 based on a negative pressure applied by a negative pressure source (not shown). If it is not adsorbed, the trailing edge portion 39 of the film hangs downward, which makes the work extremely difficult.

On the other hand, as shown in FIGS. 4 and 5, the new laminator film roll 14 which replaces the laminator film roll 14 which has been rewound has a laminator film 16A and a protective film at the film pull-out end 38, as shown in FIGS. 16B is attached to each of the contact surfaces of 16B at positions slightly from the center from both ends in the width direction and the edges are aligned with the edges of the pull-out end 38, and the double-sided adhesive tape 40 is attached in advance, and the surface thereof is covered with the release paper 42. Keep it.

When the laminator film roll 14 is replaced, a new laminator film roll 14 is set on the film supply roller 12, and the film pull-out end 38 of the laminator film roll 14 is placed on the upper surface of the laminator film roll 14. Widely open between the photosensitive dry film 16A and the protective film 16B in the film pull-out end 38, and pull the film rear end 39 of the laminator film roll 14 held by the suction bar 37 away from the suction bar 37 there. Insert (see Figure 4).

Since the double-sided adhesive tape 40 and the release paper 42 are provided inside the film pull-out end portion 38 and aligned with the edge, the film pull-out end portion 3 is provided.
8 can be opened easily.

With the rear end portion 39 of the film inserted, the release paper 42 is peeled off to expose the adhesive surface of the double-sided adhesive tape 40, and this is pressed against the rear end portion 39 of the film to adhere (see FIG. 6). .

Since the double-sided adhesive tape 40 is attached to both the photosensitive dry film 16A and the protective film 16B, the photosensitive dry film 16A at the film pull-out end portion 38 is the photosensitive dry film 16A at the film rear end portion 39. Further, the protective film 16B at the film pull-out end 38 is separately connected to the protective film 16B at the film rear end 39.

On the other hand, a new winding roller 26 for winding the protective film 16B is set, and the tip of the protective film 16B hanging from the guide roller 24 is wound around the new winding roller 26.

In this state, when the entire film is manually fed, at the position of the film separating member 22, the preceding protective film 16B is followed by the film pull-out end portion 3.
8 is peeled off from the photosensitive dry film 16A, and the protective film 16B is removed from the photosensitive dry film 16A.
Is fed into a predetermined path after the preceding photosensitive dry film 16A. Subsequent photosensitive dry film 1
After the tip of 6A reaches the main vacuum plate 28, the rotary cutter 32 is fed with a predetermined feed.
Then, the leading part and the leading end of the trailing part are discarded.

Therefore, as in the conventional case, the protective film 16B is manually peeled off from the photosensitive dry film at the film pull-out end portion 38, and the photosensitive dry film 16A is removed.
It is not necessary to wind each roller around the film supply path.

Therefore, the film setting of the new upper and lower laminator film rolls 14 conventionally required 10 minutes, but in the case of the above-mentioned embodiment, it can be completed in about 5 minutes.

Next, the second embodiment of the present invention will be described with reference to FIG.
Will be described with reference to.

The photosensitive dry film 16A and the protective film 16B are both very thin and easily adsorbed to each other by static electricity, which is inconvenient to handle. When inserting the film rear end portion 39 into the opened film pull-out end portion 38, there is a problem that it is also difficult to handle.

In the second embodiment, as shown in FIG. 7, the release sheet 44 which is difficult to adhere to the adhesive tape is previously inserted into the pull-out end portion 38, and the rear end portion 39 of the film is used as a guide. To the opened film drawer end 3
It is designed to be inserted into the inside of the box 8.

Here, as shown by the two-dot chain line in FIG. 4, the release sheet 44 can protrude from the longitudinal edge 38A and the widthwise edges 38B and 38C of the film pull-out end 38. It has a large size. When this release sheet 44 is used, it is difficult for the double-sided adhesive tape 40 at the film pull-out end portion 38 to adhere to the release sheet 44.
It is possible to insert the release sheet 44 in a state where the release sheet 2 is removed. By doing so, the film pull-out end portion 38 can be immediately bonded to the film rear end portion 39 inserted along the release sheet 44 by pulling out the release sheet 44.

Here, since the release sheet 44 is difficult to adhere to the double-sided adhesive tape 40, the release sheet 44 easily drops even when it is inserted into the film pull-out end portion 38. In this case, the release sheet 44 is inserted into the film pull-out end portion 38 as deep as possible. If it cannot be inserted deeply into the film pull-out end portion 38, as shown in FIG. 6, both sides of the insertion end of the release sheet 44 or one surface (preferably the surface on the protective film 16B side) of both sides is adhered. It is advisable to bond the tape 46 in advance so that the tape 46 does not fall off from the film pull-out end portion 38 at the time of insertion.

In this way, the portion of the double-sided adhesive tape 46 enters the closed film pull-out end portion 38, and the double-sided adhesive tape 40 adhered to the inner surface of the film pull-out end portion 38 prevents the double-sided adhesive tape 46 from falling off. .

Next, a third embodiment of the present invention shown in FIG. 8 will be described.

In the third embodiment, the release paper covering the pair of double-sided adhesive tapes 40 is one common release paper 43.
In addition, the release paper 43 is arranged so as to protrude from the edges of the double-sided adhesive tape 40 and the film pull-out end portion 38.

In this embodiment, the double-sided adhesive tape 40 is attached to both sides of the release paper 43, and this is applied to the photosensitive dry film 1.
It is sandwiched between 6A and the protective film 16B. When both films 16A and 16B are opened in this state, the double-sided adhesive tape 40 adheres to the films 16A and 16B side and separates from the release paper 43.

Therefore, the double-sided adhesive tape 40 and the release paper 43
Is very easy to set, and since the portion provided with the double-sided adhesive tape 40 is not closed by the laminated film 16A and the protective film 16B, the work of opening the film pull-out end portion 38 becomes easy.

Next explained is the fourth embodiment of the invention shown in FIG.

In the fourth embodiment, the release sheet 44 also serves as a release paper covering the double-sided adhesive tape 40. Also in this embodiment, the double-sided adhesive tape 40 is attached in the same manner as in the third embodiment.

In this way, the work of peeling off the release paper 42 becomes unnecessary, and the release sheet 44 can be prevented from falling off.

In the embodiment using the releasable sheet 44, the releasable sheet 44 has a width protruding from both side edges 38B and 38C of the drawer end 38 in the width direction. The release sheet is not limited to this, and may be any release sheet as long as it facilitates the opening of the pull-out end portion 38 and the insertion of the film rear end portion 39. However, it does not necessarily have to protrude from both ends 38B and 38C in the width direction of the extraction end.

Further, in the above embodiment, the double-sided adhesive tape 40 and the release paper 42 provided inside the film pull-out end portion 38 are provided at two places in the film width direction, but the present invention is not limited to this. However, it may be provided at three or more locations at appropriate intervals, or may be provided over the entire width direction.

Further, in the above embodiment, the double-sided pressure-sensitive adhesive tape 40 and the release paper 42 are attached to the film pull-out end 38 side of the replaced new film roll 14 for laminator, but the present invention is not limited to this. However, the double-sided adhesive tape and the release paper may be provided on the film rear end 39 side, contrary to the above embodiment.

The cut rear end portion 39 is suction-held by the suction bar 37.
A hook bar for simply hooking the rear end portion 39, a bar formed with an adhesive layer that adheres so as to be peeled off, a nip for sandwiching,
Other holding means such as a fixing means for spraying and fixing the bar with air may be used.

[Brief description of drawings]

FIG. 1 is a schematic side view showing an outline of a laminator to which the present invention is applied.

FIG. 2 is an enlarged cross-sectional view showing the vicinity of a film supply roller and a film separating member in the laminator.

FIG. 3 is a cross-sectional view showing a state after cutting and forming a rear end portion of the laminator film.

FIG. 4 is a side view showing, in an enlarged manner, the vicinity of a pull-out end portion and a rear end portion of a laminator film connected by the method of the present invention.

FIG. 5 is a perspective view of the drawer end and the rear end.

FIG. 6 is a sectional view showing a state in which the pull-out end portion and the rear end portion of the laminator film are connected to each other.

FIG. 7 is a schematic sectional view showing a film connecting process according to a second embodiment of the method of the present invention.

FIG. 8 is a schematic sectional view showing a double-sided tape attaching process according to a third embodiment of the present invention.

FIG. 9 is a schematic sectional view showing the relationship between the double-sided pressure-sensitive adhesive tape and the release sheet in the fourth embodiment of the invention.

[Explanation of symbols]

 10 ... Laminator 12 ... Film supply roller 14 ... Photosensitive dry film roll 16 ... Film 16A ... Photosensitive dry film 16B ... Protective film 18 ... Guide roller 22 ... Film separating member 26 ... Winding roller 28 ... Main vacuum plate 37 ... Adsorption Bar 38 ... Draw-out end 38A ... Longitudinal end 38B, 38C ... Width end 39 ... Rear end 40 ... Double-sided adhesive tape 42, 43 ... Release paper 44 ... Releasable sheet 46 ... Double-sided adhesive tape

Claims (12)

[Claims] 1. A protective film is separated from a film roll for a laminator obtained by winding a film for a laminator, which is a photosensitive dry film covered on one side with a protective film, into a roll. It is peeled by a member, the peeled protective film is wound by a winding roller, and the photosensitive dry film is supplied to the laminator body.
When replacing the film roll for the preceding laminator with the film roll for the new laminator, one end of the film trailing end of the film roll for the preceding laminator and the film pull-out end of the film roll for the following laminator supplied Of the one side of the protective film in contact with the one side of the photosensitive dry film and one side thereof, an adhesive layer and a release layer covering the same are formed in advance, and the photosensitive dry film and the protective film are opened at the ends, After peeling off the release layer, the other end is inserted between the opened photosensitive dry film and the protective film, and the adhesive layer is used to form the preceding photosensitive dry film and the following photosensitive film. A method for connecting a laminator film at the time of replacement, characterized in that a dry film is connected to a leading protection film and a trailing protection film, respectively. 2. The release layer according to claim 1, wherein the release layer is one release layer interposed between the adhesive layer on the photosensitive dry film side and the adhesive layer on the protective film side. Connection method when replacing the laminator film. 3. The release layer according to claim 2, wherein the release layer has a size such that the release layer is preliminarily sandwiched between the pressure-sensitive adhesive layers and protrudes from a longitudinal edge of the one end and reaches at least near both ends in the width direction. A method for connecting a laminator film at the time of replacement, which is a moldable sheet, wherein the release sheet is extracted and the preceding and following laminator films are connected. 4. The method for connecting a laminator film during replacement according to claim 3, wherein the release sheet has a size protruding from both widthwise edges of the one end. 5. The release layer according to claim 1 or 2,
A method for connecting a laminator film at the time of replacement, characterized in that the laminator film has a size protruding from the adhesive layer and is arranged so as to project from an end portion in the longitudinal direction of the laminator film. 6. The one edge of the pressure-sensitive adhesive layer of the photosensitive dry film and the protective film according to any one of claims 1 to 5, being aligned with one of the edge of the lead-out end and the edge of the rear end. A connection method for replacing the laminator film, which is characterized in that 7. The adhesive layer of the photosensitive dry film and the protective film, and the release layer covering the adhesive layer according to claim 1, wherein the release layer is formed at a leading end portion of the film for the following laminator. Connection method when replacing film, which is a feature of laminator. 8. The laminator according to claim 1, wherein the adhesive layers of the photosensitive dry film and the protective film are arranged intermittently in a width direction of a laminator film end portion. Connection method for film replacement. 9. The laminator according to claim 1, wherein the adhesive layers of the photosensitive dry film and the protective film are continuously arranged in the width direction of the end portion of the laminator film. Connection method for film replacement. 10. The method according to claim 1, wherein the protective film is wound on the winding roller, and the protective film is cut on the winding roller to remove the winding roller. A method for connecting a laminator film when exchanging the film. 11. The film according to claim 10, wherein the film for a leading laminator is cut near the position where the winding roller is set after removing the winding roller to form a rear end portion. Connection method when replacing film for laminator. 12. The film for a preceding laminator according to claim 1, wherein the film trailing end of the film roll for a preceding laminator is held by a holding means in the vicinity of the film roll for the preceding laminator. Roll
A method for connecting a film for a laminator, which comprises connecting to a film pull-out end of the film roll for a subsequent laminator after the film roll for a subsequent laminator is replaced.