JPH07223197A - Rotary cutter device - Google Patents

Abstract

PURPOSE:To prevent the film chips generated when a film is cut by a rotary cutter on a laminator from being stuck to the film or scattered in the surrounding. CONSTITUTION:A fixed edge 15 cutting a film 1B in cooperation with the rotary edge tip 17A of a rotary edge 17 is surrounded by a hollow case 26 except for the periphery of a fixed edge tip 15A, a hollow section 26A is connected to an air suction pipe 38, and the chips generated when the film 1B is cut are sucked to the outside via an opening section 26B around the fixed edge tip 15A, communicating gaps 34A, 34B, and the hollow section 26A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film laminating apparatus called a laminator, and more particularly to a laminator for laminating a film on the surface of a substrate for printed wiring or the like, in which the film is cut according to the length of the substrate. Rotary cutter device for

[0002]

2. Description of the Related Art In the process of manufacturing a printed wiring board used for electronic equipment such as a computer, there is a step of sticking a laminate film on the surface of a printed wiring board.

At this time, when the film is cut by a rotary cutter, the film is cut between the fixed blade and the rotary blade by rotating the rotary blade as disclosed in, for example, Japanese Patent Laid-Open No. 3-288626. There is something to do.

When the film is cut, chips are generated, which has been solved by suctioning the rotary blade and its periphery by vacuum.

[0005]

However, in recent years, the structure of a VLSI or the like to be covered by a film has become extremely fine, and in some cases even a small amount of dust may be a defective product. However, it was not possible to completely collect the chips only by collecting the dust by the conventional vacuum, and it was not possible to prevent the generated chips from adhering to the film or scattering.

The present invention has been made in view of the above problems of the prior art, and includes film dust (coating material such as photoresist, and other substances coated on the film, which adheres to the tip of the fixed blade or the rotary blade. It is an object of the present invention to provide a rotary cutter device for a laminator in which) is prevented from adhering to a film or scattering.

[0007]

According to a first aspect of the present invention, there is provided a rotary blade provided with a rotary blade tip spirally wound around an outer periphery of a rotatable cylindrical member, and a rotation locus of the rotary blade tip. A fixed blade edge that is parallel to the central axis of the cylindrical member is provided at a position circumscribing the outer circumference, and a fixed blade supported by a fixed blade support member is provided, and the fixed blade edge of the substrate transfer direction in the film sticking surface of the substrate A continuous film from the front end toward the rear end, when the film is sequentially attached from the front side in the feeding direction, the continuous film is provided in the vicinity of the fixed blade tip between the rotary blade tip and the fixed blade tip of the rotary blade. In the rotary cutter device for cutting the substrate into a dimension corresponding to the length in the transport direction of the substrate, a hollow case surrounding the fixed blade with the fixed blade tip protruding from the opening is provided, and the hollow casing is provided. Scan of the inner space, in which to achieve the above object by connecting the opening and the gas suction means.

According to a second aspect of the present invention, there is provided a gas blowing tube which is disposed on the film exit side of the rotary blade and closer to the rotary blade than the film passing surface, and which blows a pressure gas toward the hollow case. You may

Further, as in claim 3, the gas blowing tube may have a gas blowing direction along a tangent line of a rotation locus of the rotary blade edge.

Further, as in claim 4, the hollow case may have an inclined outer wall which is separated from the passing surface of the film as it is separated from the fixed blade edge in the film feeding direction.

According to a fifth aspect of the present invention, in the hollow case, together with the outer wall of the hollow case, at least from the fixed blade to the intersection of the rotation locus of the rotary blade and the film passing surface on the film exit side. Then, a cover surrounding the side of the fixed blade of the film may be provided.

According to a sixth aspect of the present invention, in the hollow case, together with the outer wall of the hollow case, at least from the fixed blade edge to the intersection of the rotation locus of the rotary blade edge and the film passing surface on the film exit side. Then, a cover surrounding the side of the fixed blade of the film may be provided, and the gas blowing tube may have a gas blowing direction inside the cover.

[0013]

The function and effect of the present invention is that a large amount of cutting powder adheres to the fixed blade when the film is cut by the rotary cutter device.
This is based on the fact that it was found that the film dropped due to the contact impact with the rotary blade at the next cutting and adhered to the film.

According to the first aspect of the present invention, the periphery of the fixed blade is surrounded by the hollow case except the fixed blade tip, and the gas suction means is connected to the hollow case. At the time when the film is cut in, the chips are sucked into the hollow case and further discharged to the outside by the gas suction means, so that the generated chips are prevented from adhering to the film and scattering around. In particular, even if the film chips attached to the fixed blade are dropped by the contact impact with the rotary blade during the next cutting, they are immediately sucked by the gas suction means, so that the main part of the chips attached to the film can be eliminated.

According to the second aspect of the present invention, the pressure gas jetted from the gas blowing pipe forms a pressure gas flow in the hollow case direction, so that the rotary blade after cutting flows the film in the film feeding direction or fixes it. The chips falling from the blade are blown back toward the fixed blade by the pressure gas flow and sucked into the hollow case. Therefore, scattering of cutting chips and adhesion to the film can be suppressed more reliably.

According to the third aspect of the present invention, the pressure gas jetted from the gas blowing pipe can blow off the film chips attached to the rotary blade tip and collect the compressed gas in the fixed blade direction.

According to the fourth aspect of the present invention, the inclined outer wall surface of the hollow case facilitates formation of a gas flow sucked into the hollow case from the vicinity of the fixed blade edge, and thus the film swarf smoothly enters the hollow case. Can be inhaled.

According to the fifth aspect of the invention, even in the space surrounded by the outer wall surface of the hollow case and the cover, the film chips can be sucked into the hollow case without leaking to the outside.

According to the sixth aspect of the present invention, the pressure gas from the gas blowing tube is blown into the space surrounded by the outer wall of the hollow case and the cover.
In particular, the chips that have fallen from the fixed blade onto the cover are also easily collected near the tip of the fixed blade and sucked into the hollow case.

[0020]

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

First, a schematic structure of a laminator R to which the present invention is applied will be described with reference to FIG.

The laminate film 1 has a three-layer structure of a transparent resin film, a photosensitive resin layer and a transparent resin film, and is continuously wound around a supply roll 2.

The laminate film 1 from the supply roll 2 is
The film separating member 3 is a translucent resin film (protective film) 1
A, a laminate film 1B composed of a photosensitive resin layer and a translucent resin film, one surface (adhesion surface) of which is exposed, is separated. This laminated film (hereinafter referred to as film) 1
B is cut by the rotary cutter device of the present invention.

The separated translucent resin film 1A is constructed so as to be wound up by a winding roll 4. The supply roll 2 and the take-up roll 4 are provided in pairs vertically symmetrical with respect to the substrate transfer path II.

The leading end side of the other separated film 1B in the supply direction is supplied to the main vacuum plate (film supply member) 6 via the tension roll 5.

The main vacuum plate 6 has a large number of suction grooves and suction holes to which negative pressure is applied (both not shown).
Is provided on the surface so that the film 1B can be adsorbed, and is configured to be close to and away from the film sticking position (moving in the vertical direction).

The main vacuum plate 6 is slidably mounted on a guide rail 7, and the guide rail 7
Is attached to the main vacuum plate support plate 8. The main vacuum plate support plate 8 is provided on a mounting frame (not shown) of the apparatus main body so as to be vertically movable via a rack gear and a pinion gear 10. The rack gear is vertically moved by a drive motor 11.

Further, a film holding member 12 for winding the leading end is provided on the main vacuum plate supporting plate 8 slidably on front and rear guide rails (not shown).

A suction groove and a suction hole (both not shown) to which a negative pressure is applied are provided on the film-winding member 12 for winding the leading end, and in particular, the fixed blade 1 of the rotary cutter is provided.
Only the suction hole is provided in the front end region on the fifth side, so that the film 1B is securely held by the front end winding film holding member 12.

The film holding member 12 for winding the leading end is also provided.
, The connecting rod 13 is restrained in the advancing / retreating direction with respect to the film 1B, and is freely slidably fitted in the vertical direction. The connecting rod 13 is attached to the fixed blade supporting member 14 and further fixed. The fixed blade 15 is supported on the support member 14.

Reference numeral 16 in FIG. 2 is a rotary blade supporting member,
The rotary blade 17 is rotatably supported by the rotary blade support member 16 at a position facing the fixed blade 15.

Air blow tubes 19 and 20 for blowing air toward the film are provided above and below the rotary blade support member 16, respectively. This air blowing pipe 19,2
0 has an air blowout hole (not shown) on the side facing the film 1B along the longitudinal direction of each tube, for example, 20
Many holes are drilled at mm pitch.

In FIG. 2, reference numeral 21 is a thermocompression bonding roll, 22 is a printed wiring board substrate, 23A is a driving roll, 23B is a driven roll, 24 is a substrate pressing member, and 25 is a vacuum bar.

The substrate pressing member 24 is composed of a substrate pressing roll 24A and a substrate holding roll air cylinder 24B for vertically moving the substrate pressing roll 24A.

The thermocompression bonding roll 21 to the substrate pressing member 24
The relationship is as follows.

The front end of the printed wiring board substrate 22 is detected by the substrate front end position detection optical sensor 27 provided in the vicinity of the substrate transfer path, and the printed wiring board substrate 22 is transferred to the temporary film mounting position after a predetermined time. Then, the rotation of the drive roll 23A is stopped. At the same time, the substrate pressing roll 24A presses the substrate with the substrate pressing member 24.
Air cylinder 24B for substrate pressing roll to move
Is activated.

By the substrate pressing roll 24A, the movement of the printed wiring board substrate 22 is surely stopped, and even if the front end portion 6D of the main vacuum plate 6 comes into contact with the printed wiring board substrate 22, the printed wiring board substrate 22. Does not move, and the laminated film 1A is temporarily attached.

The printed wiring board substrate 22 is held by the substrate holding roll 24A until the thermocompression bonding roll 21 comes into contact with the printed wiring board substrate 22. The substrate is synchronized with the contact timing of the thermocompression bonding roll 21. The presser roll air cylinder 24B is released.

As shown in the enlarged view of FIG. 1, the fixed blade 15 is surrounded by a hollow case 26 except for the fixed blade tip 15A. The hollow case 26 includes a hollow portion 26A that encloses the fixed blade 15 and an opening 2 around the fixed blade tip 15A.
6B and a bottom portion 26C which is an end surface opposite to the opening portion 26B.
In the rotation locus of the rotary blade edge 17A of the rotary blade 17, it faces an arc on the fixed blade 15 side with respect to the film passing surface 28, and is separated from the film passing surface 28 in the forward direction of the film (downward in FIG. 1). Inclined outer wall 26
And D.

The rotary blade 17 is composed of a rotary blade tip 17A and a cylindrical portion 17B supporting the rotary blade tip 17A, and the rotary blade tip 17A is passed through the film passing surface 28 by contacting the fixed blade tip 15A. The film 1B is cut.

For the fixed blade 15, the hollow case 2
6 is fixed by a screw 32 via spacers 30A and 30B in the hollow portion 26A, and is thereby supported by the fixed blade support member 14.

These spacers 30A and 30B form communication gaps 34A and 34B between the fixed blade 15 and the inner peripheral wall of the hollow case 26 that encloses the fixed blade 15, and these communication gaps 34A and 34B are connected to the opening 26B. The hollow portion 26A on the rear end side (left end in FIG. 2) of the fixed blade 15 communicates with the fixed blade 15.

A plug 40 to which an air suction pipe line 38 is connected is screwed to the bottom portion 26C of the hollow case 26. The air suction pipe line 38 is connected to a suction source 42 on the air pump suction side or the like, so that the communication gap 3 from the opening 26B around the fixed blade tip 15A in the hollow case 26.
Air can be sucked in through the hollow portions 26A and 4A, 34B.

Reference numeral 44 in FIG. 1 denotes a support shaft that supports the fixed blade 15 with respect to the fixed blade support member 14 within a certain range by swinging with respect to the rotary blade tip 17A so that the position thereof can be adjusted.

Here, the air blowing pipe 19 is arranged so as to blow out the pressurized air in the direction of the outer wall 26D along the tangent line of the rotation locus of the rotary blade edge 17A.

Next, the operation of the apparatus of the above embodiment will be described.

When cutting the film 1B on the film passage line 28, the blade edge 17A of the rotary blade 17 is shown in FIG.
By driving in a counterclockwise direction from the standby position at the upper end of the blade edge rotation locus, the film 1B is cut between the contact points of the two in cooperation with the blade edge 15A of the fixed blade 15.

After cutting, the rotary blade 17 is immediately stopped from rotating, and the tail end of the film 1B cut during that time is rotated by the rotary blade 1.
Get out of the rotation trajectory of 7. Then, the rotary blade 17 is driven counterclockwise again and stopped at the standby position.

In this embodiment, the film passing surface 28
The film 1B that has passed through is the rotary blade edge 17A of the rotary blade 17.
Most of the chips generated when the cutting is performed are carried on the air flow sucked from the opening 26B of the hollow case 26, and are sucked out through the communication gaps 34A and 34B and the hollow portion 26A.

Most of the generated chips adhere to the fixed blade 15, and are separated from the fixed blade 15 mainly by the contact impact between the rotary blade tip 17A and the fixed blade 15 at the time of the next cutting, but sucked from the opening 26B. Hollow part 2 due to the generated air flow
6A is inhaled.

The chips adhering to the rotary blade edge 17A are also peeled off by the pressure air flow blown from the air blowing tube 19, blown off toward the opening 26B, and sucked into the hollow portion 26A.

At this time, the outer wall 26 of the hollow case 26
D is a film chip blown off from the rotary blade edge 17A or a film chip that is generated at the time of cutting the film and prevents the film chip not sucked from the opening 26B from being scattered to the surroundings, and the addition from the air blowing tube 19 The compressed air is guided in the direction of the opening 26B.

Therefore, the chips generated by cutting the film 1B are sucked out through the opening 26B without being scattered to the surroundings.

Next, a second embodiment of the present invention shown in FIG. 3 will be described.

In the second embodiment, the film passing surface 28 and the rotary cutting edge 17 are moved from the outer wall 26D of the hollow case 26 to the film passing surface 28 and the rotary cutting edge 17.
A cover 54 extending to the vicinity of the film exit side intersection of A is provided, and the pressure air flow blown from the air blowing tube 19 flows along the inner surface (rotating blade 17 side) of the cover 54. It was done.

In this embodiment, the film chips that were not sucked through the opening 26B when cutting the film, the chips that adhered to the fixed blade 15 and then fell off or adhered to the rotary blade edge 17A, and were blown with air. Since the film chips blown off by the pressurized air flow from the tube 19 are confined in the region surrounded by the outer wall 26D of the hollow case 26 and the cover 54, the film chips do not flow out to the outside and the air does not flow out. The compressed air flow from the spray pipe 19 is carried to the opening 26B, where it is sucked and discharged. Also, the chips that have fallen and adhered onto the cover 54,
The airflow flowing along the inner surface is carried to the opening 26B.

In the above embodiment, the pressure air is blown from the air blowing pipe toward the hollow case. However, this is not limited to air, and it may depend on the material of the film, substrate, etc., pressure bonding conditions, etc. Alternatively, other pressure gas such as nitrogen gas may be used.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a rotary cutter device according to the present invention.

FIG. 2 is a schematic sectional view showing a schematic structure of a laminator to which the rotary cutter device according to the present invention is applied.

FIG. 3 is an enlarged sectional view showing a main part of a second embodiment of the present invention.

[Explanation of symbols]

 1B ... Film 15 ... Fixed blade 15A ... Fixed blade tip 17 ... Rotating blade 17A ... Rotating blade tip 19 ... Air blowing tube 26 ... Hollow case 26A ... Hollow portion 26B ... Opening portion 26C ... Bottom portion 26D ... Outer wall 28 ... Film passing surface 34A, 34B ... Communication gap 38 ... Air suction pipe line 54 ... Cover

Claims (6)

[Claims] 1. A rotary blade having a rotary blade tip spirally wound around the outer periphery of a rotatable cylindrical member, and a cylindrical blade at a position circumscribing the outer periphery of a rotary locus of the rotary blade tip. A fixed blade provided with a fixed blade edge parallel to the central axis and having a fixed blade supported by a fixed blade support member, and continuous from the front end to the rear end in the substrate transport direction on the film sticking surface of the substrate. When the film is sequentially attached from the leading end side in the feeding direction of the film, the continuous film is passed in the vicinity of the fixed blade tip between the rotary blade tip of the rotary blade and the fixed blade tip, and the length in the transport direction of the substrate is set. In a rotary cutter device for cutting into a dimension corresponding to, with a hollow case that surrounds the fixed blade in a state where the fixed blade tip protrudes from the opening, an inner space of the hollow case,
A rotary cutter device connected to the opening and the gas suction means. 2. The gas blow-off pipe for ejecting a pressure gas in the hollow case direction, which is arranged on a film exit side of the rotary blade and closer to the rotary blade than a film passing surface. Characteristic rotary cutter device. 3. The rotary cutter device according to claim 2, wherein the gas blowing tube has a gas blowing direction along a tangent line of a rotation locus of the rotary blade edge. 4. The method according to claim 1, 2 or 3,
The rotary cutter device, wherein the hollow case has an inclined outer wall that is separated from the passing surface of the film as it is separated from the fixed blade edge in the film feeding direction. 5. The hollow case, as defined in any one of claims 1 to 4, wherein, along with the outer wall of the hollow case, at least the fixed blade edge, the intersection of the rotation locus of the rotary blade edge and the film passing surface on the film exit side. The rotary cutter device is characterized in that a cover surrounding the side of the fixed blade of the film is provided between the two. 6. The hollow case according to claim 2 or 3, wherein at least the fixed blade edge and the outer wall of the hollow case are provided from the fixed blade edge to the intersection point of the rotation path of the rotary blade edge and the film passing surface on the film exit side. In addition, the rotary cutter device is characterized in that a cover surrounding the side of the fixed blade of the film is provided, and the gas blowing tube is arranged such that the gas blowing direction is inside the cover.