JP2010012656A - Vacuum laminator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum laminator which has a vacuum tank for bonding a film to a base and a pair of sealing rollers arranged at a carry-in orifice or a carry-out orifice of the vacuum tank, and also, which can cut the time required for the elimination of creases apt to be easily generated in a film which is first, drawn alone from the carry-out orifice, in procedures to take prior to bonding the base and the film together, and further, can prevent the base from being carried in tilting through the carry-in orifice, when the base is of a continuous length shape. <P>SOLUTION: This vacuum laminator includes an opening means for the purpose of temporarily opening a gap across a pair of the sealing rollers to the larger interstice than the thickness of the base or the film passing through the carry-in orifice or the carry-out orifice. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vacuum laminating apparatus for laminating (laminating) a film on a substrate in a vacuum. In particular, the present invention relates to a seal roller of a vacuum laminating apparatus.

2. Description of the Related Art Conventionally, a laminating apparatus for attaching a film to a substrate laminates the substrate and the film by heating and pressing with a pair of heat rollers. Moreover, in order to eliminate the micro bubble between a board | substrate and a film, this is performed in the vacuum (patent document 1). Lamination in vacuum is performed in a vacuum chamber, and a pair of seal rollers are provided at the entrance or exit of the vacuum chamber in order to carry the substrate in or out of the vacuum chamber. This seal roller is generally made of rubber, and has a structure in which a vacuum is maintained by contact between the seal rollers and the wall around the inlet or outlet of the vacuum chamber.

JP-A-8-323915

The problem to be solved is that before laminating the substrate and the film, the film alone is first pulled out from the outlet of the vacuum chamber, and after that, the substrate is laminated with the film in a superimposed form. The film drawn out in (1) is easy to wrinkle, and the wrinkle is not easily removed, and the film is wasted. Therefore, time is lost until the film is laminated.
In addition, when the substrate is a long continuous body, when the substrate is tilted and is carried in from the carry-in port of the vacuum chamber, the displacement is enlarged, the substrate comes into contact with the end of the carry-in port, and the substrate is damaged.

  An object of the present invention is to provide a vacuum laminating apparatus that eliminates film waste, time loss, or damage to the substrate during setup before laminating the substrate and the film.

As a means for solving the problem, the present invention provides a vacuum laminator having a vacuum chamber for bonding a film to a substrate and a pair of seal rollers provided at a carry-in port or a carry-out port of the vacuum vessel. An opening means is provided to temporarily open a gap between the pair of seal rollers at a height greater than the thickness of the substrate or film passing through the carry-in port or the carry-out port.
Further, the present invention provides a vacuum laminating apparatus having a vacuum chamber for attaching a film to a substrate and a pair of seal rollers provided at a carry-in port or a carry-out port of the vacuum vessel. The pair of seal rollers having a shaft and having a height greater than the thickness of the substrate or film passing through the carry-in port or the carry-out port to temporarily open a gap between the pair of seal rollers It is to provide a wedge that pushes between the rotating shafts.

That is, the present invention relates to the following.
(1) In a vacuum laminating apparatus having a vacuum chamber for attaching a film to a substrate and a pair of seal rollers provided at the entrance or exit of the vacuum chamber, the substrate passing through the entrance or exit Alternatively, a vacuum laminating apparatus having an opening means for temporarily opening a gap between the pair of seal rollers at a height greater than the thickness of the film.
(2) In a vacuum laminating apparatus having a vacuum chamber for attaching a film to a substrate and a pair of seal rollers provided at the entrance or exit of the vacuum chamber, the pair of seal rollers has a rotation shaft. And rotating the shafts of the pair of seal rollers to temporarily open a gap between the pair of seal rollers at a height greater than the thickness of the substrate or film passing through the carry-in port or carry-out port. A vacuum laminating machine that provides a wedge that pushes the gap.

INDUSTRIAL APPLICABILITY The present invention can provide a vacuum laminating apparatus that eliminates film waste, time loss, or damage to the substrate in the setup before laminating the substrate and the film.

  The substrate described in the present invention is not particularly limited to a plate-like or film-like one, a sheet-like long continuous body, but has a concavo-convex surface on one side or both sides in order to bond with a film in a vacuum. Things are convenient. For example, in the production of a printed wiring board, a circuit board on which a resin or metal is laminated having an uneven surface of about 10 μm to 1 mm may be incorporated.

  The film described in the present invention refers to a film having a sticking force by pressurization at room temperature or in warming. For example, in the production of printed wiring boards, dry film is used to mask parts that remain etched or not plated, and film materials that cover parts that do not require solder when mounting and soldering parts. Sure. Further, a protective film is generally stretched on the side to be bonded, and is peeled off before bonding.

The vacuum tank described in the present invention refers to a general tank whose inside can be decompressed by a vacuum pump or the like. In the vacuum chamber, for example, a heat and pressure roller as means for attaching the film to the substrate, a film to be attached, and the like are accommodated.

The seal roller described in the present invention is formed by cylindrically molding an elastic body on a cylindrical metal shaft.
The metallic shaft is generally made of a metal such as copper, aluminum, iron or stainless steel, or an alloy obtained by adding nickel, manganese, molybdenum, silicon or the like to stainless steel or iron.
As the material of the elastic body, a heat-resistant elastomer such as silicone rubber, fluorine rubber, ethylene propylene rubber, nitrile butadiene rubber, chloroprene rubber or the like can be used. The hardness is adjusted by adding an inorganic heeler. Further, a multilayer elastic body having a soft surface and a hard back surface or a plurality of elastic bodies having different hardness may be used depending on the unevenness of the substrate.

  The opening means described in the present invention temporarily provides a gap between the seal roller and the seal roller. When it is provided at the carry-out port, it is a means by which the film passing therethrough can be freely moved temporarily. For this purpose, the height of the gap between the seal roller and the seal roller is made higher than the thickness of the film. can get. Further, when it is provided at the carry-in port, it is a means that allows the substrate passing therethrough to be freely moved temporarily. For that purpose, the height of the gap between the seal roller and the seal roller is set higher than the thickness of the substrate. Can be obtained.

The wedge described in the present invention is inserted between the metallic shafts of a pair of seal rollers, and the space between the shafts is widened or the widened one is returned. When the wedges are inserted simultaneously between the shafts of both end portions exposed from the elastic body of the seal roller, the height of the gap can be increased in parallel between the seal roller and the seal roller. For example, a material obtained by processing a metal plate is used, and grease or the like is provided between the seal roller and the metal shaft that comes into contact with the wedge. Further, the wedge may be inserted between the side surfaces of the bearings fitted into the shafts of both end portions exposed from the elastic body of the seal roller. That is easier to insert.

  Hereinafter, the present invention will be described based on embodiments shown in the drawings. FIG. 1 shows a schematic view of a vacuum laminating apparatus used in the present invention (the indication of an opening means for temporarily opening between seal rollers is omitted), and the substrate is inserted horizontally using the laminating rollers up and down. The outline of the example of the vacuum laminating apparatus which deposits a film on both the front and back simultaneously is shown.

In FIG. 1, lamination is performed by a pair of laminating rollers 2 in a vacuum chamber 1 that holds a vacuum, and a vacuum exhaust pump 3 is provided in the vacuum chamber 1. A pair of seal rollers 5 is provided at a portion where the substrate 4 is carried into or taken out from the vacuum chamber 1.
The laminating roller 2 is provided with heating means, and an elastic body is provided on the surface of the laminating roller 2.
One of the pair of laminating rollers 2 is provided with vertical movement means (not shown) such as air or a hydraulic cylinder for allowing the laminating roller 2 to move up and down. Secure to the inner wall.
In the apparatus of FIG. 1, two upper and lower films 7 supplied from a roll-fed film supply means 6 provided in the vacuum chamber 1 are passed between a pair of laminating rollers 5 while passing between the films 7. In order to enter, the substrate 4 is inserted from the right between a pair of seal rollers 5 provided at the carry-in port, and is laminated while being kept horizontal by the transfer roller 8 in the vacuum chamber 1. After laminating, it passes through a pair of sealing rollers 5 provided at the outlet of the vacuum chamber 1 and is carried out while being kept horizontal by the carry-out roller 9.

In the present invention, before the lamination, the film is first wrinkled and then laminated.
FIG. 2 is a partial view of the laminating roller and the sealing roller portion of the take-out port (the indication of the opening means for temporarily opening the space between the sealing rollers is omitted), and shows a method for removing wrinkles from the film.

First, as shown in FIG. 2A, a gap is provided between the pair of laminating rollers 2 and the pair of seal rollers 5 provided at the takeout port, and the film supply means 6 wound in a roll shape. The two upper and lower films 7 supplied from are passed between the pair of laminating rollers 2 and then between the pair of seal rollers 5 provided at the take-out port of the vacuum chamber, and are drawn out to the outside of the vacuum chamber 1 and left. At this time, the two films 7 are often in a state of sagging both in the length direction and in the width direction.
Next, as shown in FIG. 2 (b), after the rotation of the film supply means 6 is stopped, the portion 10 of the film 7 drawn out of the vacuum chamber spreads in the left direction and also in the width direction in FIG. To remove the slack of the film 7.
Next, as shown in FIG. 2 (c), with the portion 10 drawn out of the vacuum chamber of the film 7 being pulled, the pair of laminating rollers 2 are pressed against each other to eliminate the gap, and then the pair of sealing rollers Press between the five to eliminate gaps.
By the above method, wrinkles of the film are removed in the setup before laminating.
Next, the gap between the pair of laminating rollers 2 is closed, and vacuum laminating is started.

  In particular, when the substrate is a long continuous body, a gap is provided between the pair of seal rollers provided at the inlet and the outlet of the vacuum chamber so that the substrate is not inclined and carried from the inlet of the vacuum chamber. In this case, the substrate can be moved freely and temporarily, and the inclination in the traveling direction of the substrate is corrected in the setup before vacuum lamination.

  FIG. 3 shows a partial view of a vacuum laminating apparatus according to the present invention, and an example of a method using a wedge to temporarily open a pair of seal rollers at the inlet or outlet of a vacuum chamber. Show. 3A is a perspective view of this portion, and FIGS. 3B and 3C are side views for explaining the operation.

  As shown in FIG. 3A, the wedges 11 are inserted between the rotary shaft portions 12 exposed from both ends of the pair of seal rollers, respectively. Then, as shown in FIGS. 3B and 3C, the wedge 11 is temporarily moved between the seal rollers 5 by pushing the wedge 11 between the rotary shafts 12 by means of a lateral movement means 13 such as air or a hydraulic cylinder. Can be opened. The film can be moved freely by opening at a height larger than the thickness of the film.

  FIG. 4 shows a partial view of another method using a wedge of a vacuum laminator according to the present invention. Bearings 14 are fitted into the rotating shaft portions 12 exposed from both ends of the pair of seal rollers 5, and wedges 11 are inserted between the bearings 14, respectively.

The vacuum laminating apparatus of the present invention provides a means for temporarily opening a gap between a pair of seal rollers, and the substrate and film passing therethrough can be freely displaced, so the substrate and the film are laminated. In the previous setup, it is possible to reduce the wrinkle removal time that tends to enter the film that is first pulled out from the carry-out port. Moreover, when a board | substrate is a elongate continuous body, it can prevent a board | substrate tilting and carrying in from the carrying-in port of a vacuum chamber.

The schematic of the vacuum laminating apparatus used for this invention is shown. The fragmentary view for demonstrating operation | movement of the vacuum laminating apparatus which concerns on this invention is shown. FIG. 3 shows a partial view of a method using a wedge of a vacuum laminator according to the present invention. FIG. 6 shows a partial view of another method using a wedge of a vacuum laminator according to the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vacuum tank, 2 ... Laminating roller, 3 ... Vacuum exhaust pump, 4 ... Substrate, 5 ... Seal roller, 6 ... Film supply means, 7 ... Film, 8 ... Conveyance roller, 9 ... Unloading roller, 10 ... Film A part drawn out of the vacuum chamber, 11 ... a wedge, 12 ... a rotating shaft part exposed from both ends of the seal roller, 13 ... a left-right motion means, 14 ... a bearing.

Claims (2)

  In a vacuum laminating apparatus having a vacuum chamber for attaching a film to a substrate and a pair of seal rollers provided at the entrance or exit of the vacuum chamber, the substrate or film passing through the entrance or exit A vacuum laminating apparatus provided with an opening means for temporarily opening a gap between the pair of seal rollers at a height greater than the thickness.   In a vacuum laminating apparatus having a vacuum chamber for attaching a film to a substrate and a pair of seal rollers provided at the inlet or outlet of the vacuum chamber, the pair of seal rollers have a rotation shaft. Pressing between the rotating shafts of the pair of seal rollers to temporarily open a gap between the pair of seal rollers at a height greater than the thickness of the substrate or film passing through the carry-in or carry-out port A vacuum laminator that provides a wedge to spread.

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