JPH0716684Y2 - Cutting laminator - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a flexible substrate having a resin film such as a polyimide film as a base material and a thin glass epoxy layer in which a photosensitive resin laminated film (commonly referred to as a dry film) is relatively thin. The present invention relates to a cutting laminator capable of continuously crimping and stacking in a frame shape with high dimensional accuracy without entraining air even on a flexible substrate without stiffness.

[Prior art]

Conventionally, in the cutting laminator, the conveying speed of the conveyor of the previous stage that conveys the substrate to the laminating roll, that is, the pinch point, and the peripheral speed of the laminating roller that performs the pressure bonding of the dry film to the substrate surface are
When the substrate is present across both the conveyor and the laminating roller, they are designed to be driven at substantially the same speed, and the driving system of the preceding conveyor and laminating roller is different. Even in such a case, at the time when the substrate is present across both of them as described above, both of them are adjusted so that driving at substantially the same speed works.

However, in the method of driving the above-mentioned substrate conveying front-stage conveyor and the laminating roller at substantially the same speed, a flexible substrate based on a resin film such as a polyimide film or a thin relatively flexible flex of a glass epoxy layer is used. In the case of laminating easy-to-use substrates, a slight speed difference between the pre-stage conveyor and the laminating roller may have a great influence on the quality of the substrate after laminating.

This means that when the speed of the pre-stage conveyor is higher than the peripheral speed of the laminating roller, the substrate is bent between the two, and therefore the sticking angle of the dry film is different between the front surface and the back surface of the substrate, Wrinkles and air entrapment will occur. On the contrary, when the speed of the pre-stage conveyor is smaller than the peripheral speed of the laminating roller, the laminating speed becomes unstable, and the accuracy of the dry film sticking is disturbed. Even if the peripheral speeds of the rollers are the same, if the bite of the laminating roller at the substrate tip is slightly delayed due to the deflection of the substrate, etc., it will be in the same state as when the speed of the pre-stage conveyor is higher than the peripheral speed of the laminating roller. Wrinkles and air entrapment are likely to occur.

[Problems to be solved by the invention]

The present invention solves the above-mentioned problems of the prior art, and is intended for laminating on a flexible substrate having a resin film as a base material such as a polyimide film or a relatively rigid and flexible substrate having a thin glass epoxy layer. However, it is an object of the present invention to provide a laminator capable of crimping a dry film in a frame shape on a substrate with high dimensional accuracy and without wrinkles or air inclusions.

[Means for solving problems]

The cutting laminator according to the present invention, in order to achieve the above-mentioned object, conveys a substrate to a laminating roller in a laminator for continuously pressing a sheet film cut from a photosensitive resin laminated film onto a copper clad laminated plate. From the time when the front-stage conveyor roller and the tip of the substrate are cut into the laminating roller, and while the dry film is pressure-bonded to the substrate while the substrate straddles the front-stage conveyor roller and the laminating roller. A laminator provided with a clutch for disconnecting the drive of the preceding conveyor roller, and a brake for applying a resistance to the rotation of the preceding conveyor roller substantially at the same time as the disconnection of the drive.

[Operation] In the cutting laminator according to the present invention, the front end of the substrate conveyed by the pre-stage conveyor roller reaches the laminating roller, and the front end of the dry film is adhered / temporarily attached to the front and back of the substrate. When the leading edge of the substrate is conveyed to the laminating roller, the drive of the preceding conveyor roller is disengaged from the drive motor by the clutch, and the conveyor roller is braked at about the same time, and the substrate is laminated with the preceding conveyor roller. While the dry film is pressure-bonded to the substrate while straddling both rollers, there is no slack in the substrate because the constant tension acts on the substrate, and the sticking angle of the dry film on the front and back surfaces of the substrate Also, the crimping is performed in a constant state.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

In the figure, 1, 1, 1, ... Are laminated rollers for the substrate 2.
The rollers of the preceding conveyor A (entrance side conveyor) that conveys in the direction of the pinch points 3 and 3,
1, 1, ... Are provided with a clutch C for disconnecting the drive from a drive motor (not shown). Then, the above-mentioned clutch C is used to convey the preceding conveyor rollers 1, 1,
All the driving of 1, ... may be separated, and the conveyor rollers 1,1,1, ... in the preceding stage including the pinch rollers 1 ', 1' driven adjacent to the laminating rollers 3,3. May be a part of.

, 4 are brakes provided on the preceding conveyor rollers 1, 1, 1, ... or pinch rollers 1 ', 1', and 5 is a dry film 6, 6 at the tip of the substrate 2. It is a temporary attachment position to be temporarily attached to the front and back.

This embodiment is configured as described above, and its operation will be described. When the substrate 2 is conveyed by the pre-stage conveyor A and reaches the temporary attachment position 5 where the dry films 6, 6 are temporarily attached, the substrate 2 Dry film 6,6 on the front and back of the tip of
, The substrate 2 is further conveyed by the conveyor rollers 1, 1, ... In this state, the substrate 2 is bitten by the laminating rollers 3, 3 (FIG. 2). reference).

As described above, the tip of the substrate 2 has the laminating rollers 3, 3
All of the pre-stage conveyor rollers 1, 1, ... or the laminating rollers 3, 3 are detected after the board 2 has been conveyed by the pre-stage conveyor sufficient to detect that it has been bitten into
The drive of a part of the conveyor rollers including the driven pinch rollers 1 ', 1'adjacent to the drive motor is separated from the drive motor by the clutch C, and the brake 4 is actuated almost at the same time. In the operation of the brake 4, when the drive resistance is disengaged by the clutch C described above, the rotation resistance of the conveyor rollers 1, 1, 1, .. You don't have to.

As described above, when the clutch C is actuated to disconnect the drive of the conveyor rollers 1, 1, 1, ... In the previous stage from the drive motor, the substrate 2 is laminated with the conveyor rollers 1, 1, 1 ,. While straddling the rollers 3 and 3, a constant tension is applied to the substrate 2, there is no deflection of the substrate 2, and the dry film 6 and 6 attachment angles on the front and back surfaces of the substrate 2 are also constant. Since the crimping is carried out at 1, the dry films 6 and 6 are crimped onto the substrate 2 without wrinkles or entrapment of air.

Further, since the tension applied to the substrate 2 can be controlled by adjusting the brake described above, the transport speed of the substrate 2 is stabilized, and the dry film 6 and 6 are adhered to the rigid substrate with a thick glass epoxy layer. The same level of dimensional accuracy can be obtained.

Then, when the rear end of the substrate 2 has escaped from all the rollers of the preceding conveyor A (FIG. 3), the brake is released, and the drive of the motor is again connected to the preceding conveyor A by the clutch C, and the preceding conveyor A is connected. The transfer of the substrate by is restarted.

[Effect of device]

The cutting laminator according to the present invention includes a pre-stage conveyor roller that conveys a substrate to a laminating roller, and a substrate between the pre-stage conveyor roller and the laminating roller after the leading edge of the substrate is cut into the laminating roller. While the dry film was crimped to the substrate in the straddled state, a clutch for disconnecting the drive of the preceding conveyor roller and a brake for imparting resistance to the rotation of the preceding conveyor roller at the same time as the separation of the drive were provided. Therefore, the front end of the substrate conveyed by the pre-stage conveyor roller reaches the laminating roller, the front end of the dry film is adhered / temporarily attached to the front and back of the substrate, and the front end of the substrate conveyed by the pre-stage conveyor roller is further laminated to the laminating roller. Drive the conveyor roller as described above when Since it is separated by, and the brake is actuated on the conveyor roller almost at the same time, a constant tension acts on the substrate while the dry film is pressure-bonded to the substrate across both the conveyor roller and the laminating roller in the preceding stage. Since there is no slack of the substrate and the dry film is stuck on the surface of the substrate at a constant angle, the crimping can be carried out without wrinkles or entrapment of air. In addition, since the tension can be controlled by adjusting the brake, the substrate transfer speed is stable, and the dimensional accuracy of the dry film sticking is about the same as the dimensional accuracy of sticking to a thick and rigid board. It is effective.

[Brief description of drawings]

FIG. 1 is a schematic diagram in which a front end of a dry film is adhered to a front end of a substrate conveyed by a preceding conveyor, and FIG. 2 is a schematic view when the front end of the substrate is cut into a laminating roller, FIG. 3 is a schematic diagram when the rear end of the substrate escapes from the preceding conveyor roller. 1,1,1 ……: Conveyor roller in front stage 2: Substrate, 3,3: Laminating roller 6,6: Dry film C: Clutch, 4: Brake

Claims (1)

[Scope of utility model registration request] 1. In a laminator for press-bonding a sheet film continuously cut from a photosensitive resin laminated film to a copper clad laminated plate, a pre-stage conveyor roller that conveys the substrate to a laminating roller, and a tip of the substrate is The clutch for disconnecting the drive of the pre-stage conveyor roller while the dry film is pressed against the substrate in a state in which the substrate extends between the pre-stage conveyor roller and the laminating roller after being bitten by the laminating roller. And a brake that provides resistance to the rotation of the pre-stage conveyor roller at substantially the same time as the separation of the drive, and a cutting laminator.