JP3540533B2 - Top plate release mechanism of multilayer press machine - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multilayer press for a printed wiring board or the like, and more particularly, to a mechanism for detaching a top plate from the press.
[0002]
[Prior art]
As shown in FIGS. 14 and 15 of the accompanying drawings, a multilayer press apparatus 100 for obtaining a laminate such as a printed wiring board has been conventionally used.
In the press apparatus 100, a plurality of hot plates 111, 112, 113, 114, 115, and 116 are arranged in a vertical manner in a machine base 101, and as shown in FIG. Are sequentially pushed up in the machine base, and the material to be laminated L placed on each hot plate is placed on the upper hot plate of each stage (the uppermost hot plate 115 In this case, pressure is applied to and heated with the upper fixed hot platen 116) to obtain an integrated laminate. In the figure, reference numeral 102 denotes a guide plate, 103 denotes a step board (frame), 105 denotes an upper fixed plate, and 106 denotes a support.
[0003]
The material to be laminated (also referred to as a lay-up or a mechanism) L for a printed wiring board is formed by stacking a prepreg mainly composed of a thermosetting resin material and copper-clad plates for inner and outer layers in a predetermined configuration. The resin is completely cured by pressurizing and heating between the layers to form an integrated laminate. At this time, the upper surface plate P made of a metal plate is mainly provided on the upper surface of the material L to be laminated, which is arranged on the hot platen of each stage, in order to mainly ensure the smoothness of the surface of the laminate and reduce variations in parallelism. Is interposed. As the upper surface plate P, a mirror-finished mirror plate made of a 1 to 1.5 mm thick stainless steel plate, a polished top plate made of a 3 to 4 mm thick iron plate, or the like is used.
[0004]
However, since the upper surface plate P composed of the mirror surface plate and the top plate is a relatively thin and highly smooth surface plate-like material, the lower surface D of the movable platen 104 after the press working of the material L to be laminated is performed as shown in FIG. As shown in FIG. 16, the pressure and heat during processing often cause the laminated material L to closely adhere to the surface of the hot platen on which the laminated material L is placed, for example, the hot platen 112 above the hot platen 111. Then, the upper surface plate P which is in close contact with the surface of the upper heating plate 112 drops irregularly after a while.
Such irregular dropping of the upper surface plate P not only hinders the removal of the pressed laminate M, but also makes it necessary to confirm the detachment of the upper surface plate P in this kind of press working, and is complicated and operable. Work efficiency is not improved.
[0005]
[Problems to be solved by the invention]
The present invention has been proposed in order to solve such a problem. By forcibly removing the top plate when the hot plate is lowered, the workability and efficiency of this type of multi-layer press are greatly improved. It is intended to improve the quality.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention is to dispose a material to be laminated together with an upper surface plate on each of hot plates provided in a plurality of stages, and to raise a movable platen so that the hot plates in each stage and the upper hot plate And an apparatus for obtaining an integrated laminated body by pressurizing and heating between the heating plate and the heating plate provided on the upper side of each stage at an intimate contact position of the upper surface plate to provide an air blowing portion, and the heat of each stage after the pressing step is completed. The present invention relates to a top plate detaching mechanism of a multilayer press, wherein air is blown out when the plate descends to detach the top plate from the upper heating plate surface.
[0007]
Further, according to the invention of claim 2, the laminated material is arranged together with the upper surface plate on each of the heating plates provided in a plurality of stages, and the movable platen is raised to pressurize and heat the heating plate between each stage and the upper heating plate. In the apparatus for obtaining an integrated laminated body, a protruding pin is provided at a close position of the upper surface plate of the heating plate above each of the stages so as to be able to move forward and backward, and when the heating plate of each stage descends after the pressing step is completed. The present invention relates to a top plate detaching mechanism of a multilayer press, wherein the projecting pins project from the surface of the upper platen to detach the top plate from the surface of the upper platen.
[0008]
Further, according to the third aspect of the present invention, the material to be laminated is arranged together with the upper surface plate on each of the hot plates provided in a plurality of stages, and the movable plate is raised to pressurize and heat the hot plate in each stage and the upper hot plate. In the apparatus for obtaining an integrated laminated body, the upper plate is formed to have a projecting portion projecting outward from a surface edge of the upper heating plate in each of the steps, and is pressed against a side portion of the upper heating plate. It is characterized in that a lowering portion is provided to push down the projecting portion of the surface plate downward at the time of lowering of the heating plate of each stage after the pressing step, and to detach the surface plate from the upper heating plate surface. The present invention relates to an upper plate separating mechanism of a multilayer press.
[0009]
【Example】
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a main part during press working according to an embodiment of the first aspect of the present invention, FIG. 2 is a cross-sectional view when the hot plate is lowered, and FIG. 3 is a press showing an embodiment of the second aspect of the present invention. FIG. 4 is a cross-sectional view of the main part of the hot plate during processing, FIG. 4 is a cross-sectional view of the main part of the hot plate according to another embodiment of the present invention, and FIG.
[0010]
6 to 13 relate to the third embodiment of the present invention, and FIG. 6 is a cross-sectional view of an example using a release lever according to an embodiment of the third embodiment of the present invention as viewed from above the upper heating plate. Similarly, FIG. 8 is a cross-sectional view of the main part of another example of the release lever viewed from above the upper hot plate, and FIG. 9 is a third embodiment of the present invention. FIG. 10 is a cross-sectional view of a main part at the time of press working showing an air blowing mechanism as another embodiment, FIG. 10 is a cross-sectional view of the hot plate when it is lowered, and FIG. 11 is another embodiment of the invention of claim 3; FIG. 12 is a cross-sectional view of a main part of a hot plate showing another example of the protruding pin mechanism when the hot plate is lowered, and FIG. 13 is a cross-sectional view of the main part of the hot plate showing another example of the protruding pin mechanism.
[0011]
First, the invention disclosed herein relates to a multilayer press device for a printed wiring board or the like, and as described with reference to FIG. 15, the heating plates are arranged in a plurality of stages in the vertical direction by step plates of guide plates in the machine base. When the movable plate is lifted, the respective hot plates are sequentially pushed up in the machine base, and the material to be laminated L placed on each hot plate is moved to the upper hot plate of each stage (the upper plate in the uppermost plate). (Fixed hot platen) and pressurized and heated to obtain an integrated laminate M.
In the following examples, the material to be laminated L is formed by stacking a prepreg for a printed wiring board and a copper-clad board for an inner and outer layer in a predetermined configuration, but the configuration is not limited to this. .
[0012]
First, the first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a sectional view of a main part of the above-described multi-layer press apparatus during press working, and FIG. Although not shown, the hot plate is raised during press working and the hot plate is lowered after working as shown in FIG. 15 by moving the movable plate forward and backward. The same applies to the following embodiments.
That is, the materials L, L to be laminated are placed on the respective heating plates 21, 22, 23 (hereinafter abbreviated) provided in a plurality of stages, and the upper surface of the material L to be laminated is formed as described above. The upper surface plate P is arranged in order to secure the smoothness of the surface of the laminated body M to be performed and to reduce variations in parallelism. In this embodiment, the top plate P is made of a stainless steel mirror plate. Then, by raising the movable platen (not shown), the material L to be laminated is pressurized and heated between the heating platen 21 (or 22) of each stage and the heating platen 22 (or 23) on the upper side thereof to form an integrated laminate. M is obtained.
[0013]
In the first aspect of the present invention, as shown in the figure, the upper surface plate P of the heating plate 22 (or 23) on the upper side of the heating plate 21 (or 22; the fourth stage or more is not shown) of each stage. The air blowing units 25 are provided at the close positions, and when the heating plate 21 (or 22) at each stage is lowered D after the pressurizing step, air A is blown from the air blowing device 26, and the upper heating plate The upper plate P that may be in close contact with the surface of the 22 (or 23) is forcibly detached. Reference numeral 27 denotes an air passage provided in the hot platen.
[0014]
Thereby, the upper surface plate P which is in close contact with the surface of the upper heating platen 22 (or 23) due to the heat and pressure at the time of press working is simultaneously lowered with the stack M by the descent of the heating plate 21 (or 22) of each stage. It can be reliably separated, and the subsequent steps such as product removal can be performed smoothly and efficiently.
[0015]
According to the second aspect of the present invention, instead of the air blowing portion 23 of the first aspect, as shown in FIG. 3, the hot platen 32 on the upper side of the hot platen 31 of each stage (the third and higher stages are not shown). A protruding pin 35 is provided at the close position of the upper surface plate P so as to be able to move forward and backward. That is, as shown in the drawing, a protruding pin 35 constantly urged downward by a spring 36 is buried in the surface of the upper heating plate 32 of the heating plate 31 of each stage. At the time of rising U of the hot platen 31, it is buried inside the surface of the upper hot platen 32 as shown in FIG. 3, but as shown in FIG. The projecting pin 35 projects from the surface of the upper heating plate 32 by the urging force of the spring 36, and forcibly separates the upper surface plate P from the surface of the upper heating plate 32. The spring 36 may be a coil spring as shown in the figure, or may be a leaf spring or a plastic body which can be freely compressed and restored.
[0016]
Further, in the upper heating plate 42 shown in FIG. 5, the protruding pin 45 is advanced by the air pressure from the air blowing device 46. It goes without saying that the air pressure is released and the protruding pins 45 are retracted inside the surface of the hot platen 42 when the hot plates in each stage rise during the press working. Reference numeral 47 denotes an air flow path.
[0017]
As described above, according to the second aspect of the present invention, by providing the protruding pins which can be moved forward and backward, the upper surface plate P which is in close contact with the surface of the upper heating plate due to heat and pressure at the time of press working can be used. The stack M is separated at the same time as the stack M is lowered by the lowering.
[0018]
Next, the third aspect of the present invention will be described with reference to FIGS.
In each of the first and second aspects of the present invention, a mechanism for detaching the upper plate is provided inside the surface of the upper heating plate.
On the other hand, according to the invention of claim 3, the top plate is formed to have a projecting portion projecting outward from the surface edge of the upper heating plate of each step, and the top plate is provided on the side of the upper heating plate. A push-down section for detachment is provided.
In this embodiment, an example is shown in which a top plate is used as the top plate Q, and a mirror plate K is arranged below the top plate.
[0019]
As shown in FIGS. 6 and 7, the top plate, here the top plate Q, has a shape having an overhang portion Qf projecting outward from the surface edge 52 e of the upper heating plate 52 of the heating plate 51 of each stage. Is done. In this embodiment, the upper surface plate Q is formed in a square shape having a projecting edge projecting about 10 mm toward the step plate 61 of the guide plate 60.
Further, a pressing portion formed of a release lever 65 for releasing the upper surface plate Q is formed on a side portion of the upper heating plate 52.
[0020]
As shown in FIG. 6, four release levers 65 are provided on brackets 63 via shafts 66 in the vicinity of locking arms 62 for locking the upper heating plate 52 to the step plate 61. As can be clearly understood from FIGS. 7A and 7B, when the upper heating plate 52 is lowered and the locking arm 62 is locked to the step board 61, each of the release levers 65 is released. The outer arm 65B of the upper side 65 of the upper hot platen 52 is rotated upward through the shaft 66 by contacting the outer arm 65B of the upper platen 65. It descends slightly (in the embodiment, 1 mm) from the surface and comes into contact with the overhang portion Qf of the upper surface plate Q to push it down. Reference numeral 67 denotes a stopper.
[0021]
The release lever 69 illustrated in FIG. 8 is configured such that the overhang portion Qg of the upper surface plate Q is formed in a shape protruding in a direction perpendicular to the side of the step plate 61, and the inner arm 69A that pushes down the overhang portion Qg is an outer arm. This is an example formed by bending in a direction perpendicular to 69B.
8, the same reference numerals as those in FIG. 6 denote the same components.
[0022]
As described above, according to the release lever of this embodiment, the inner arm rotates downward at the same time as the lowering of the upper heating platen, and pushes down the upper surface plate Q that is in close contact with the surface of the upper heating platen and separates.
[0023]
9 and 10 show an example in which the press-down portion is formed of the air blowing portion 75. As shown in the figure, an air blowing unit 75 provided on the side of the upper heating plate 72 of the heating plate 71 of each stage operates an air blowing device (not shown) when the heating plate 71 of each stage descends to supply air A. The air is blown out, and the protruding portion Qe of the upper surface plate Q is pushed downward by this air, and the upper surface plate Q in close contact with the surface of the upper heating plate 72 is separated.
[0024]
11 to 13 show an example in which the push-down portion is formed of the protruding pin 85.
As shown in FIGS. 11 and 12, the projecting pin 85 provided on the side of the upper heating plate 82 of the heating plate 81 of each stage projects downward by the urging force of the spring 86 when the heating plate 81 of each stage descends. Then, the protruding portion Qe of the upper plate Q is pushed down, and the upper plate Q in close contact with the surface of the upper heating plate 82 is separated.
Further, as shown in FIG. 13, the protruding pins 85 provided on the side portions of the upper heating plate 82 project downward by the pressure of the air A by the air blowing device (not shown) when the heating plate 81 of each stage descends. Then, the upper surface plate Q is separated from the surface of the upper heating plate 82.
[0025]
According to the third aspect of the present invention, as described above, the upper plate is formed to have a protruding portion projecting from the surface edge of the upper heating plate, so that a special mechanism is provided on the surface side of the upper heating plate. It is not necessary to provide a device, and a press-down portion may be additionally provided on the side of the conventional hot platen.
[0026]
【The invention's effect】
As shown and described above, according to the top plate detaching mechanism of the mirror plate detaching device of the present invention, the top plate which may be in close contact with the surface of the upper platen of each platen is forcibly forced when the platen descends. Can be separated. Therefore, the work of confirming irregular dropping or detachment due to the close contact of the top plate can be completely eliminated, the workability and efficiency of this type of multilayer press can be greatly improved, and automation can be easily realized.
[Brief description of the drawings]
FIG. 1 is a sectional view of a main part at the time of press working showing one embodiment of the invention of claim 1;
FIG. 2 is a sectional view when the hot platen is lowered.
FIG. 3 is a sectional view of a main part at the time of press working, showing an embodiment of the invention of claim 2;
FIG. 4 is a sectional view when the hot plate is lowered.
FIG. 5 is a sectional view of a main part of a hot plate showing another example of the invention of claim 2;
FIG. 6 is a cross-sectional view of an example using a release lever according to an embodiment of the present invention as viewed from above an upper heating plate.
FIG. 7 is a cross-sectional view of the main part when viewed from the side of the hot platen.
FIG. 8 is a cross-sectional view of a main part of another example of the release lever as viewed from above the upper heating plate.
FIG. 9 is a cross-sectional view of a main part during press working showing an air blowing mechanism according to another embodiment of the third invention.
FIG. 10 is a sectional view when the hot platen is lowered.
FIG. 11 is a cross-sectional view of a main part at the time of press working showing a protruding pin mechanism according to another embodiment of the present invention.
FIG. 12 is a cross-sectional view when the hot plate is lowered.
FIG. 13 is a cross-sectional view of a main part of a hot plate showing another example of the protruding pin mechanism.
FIG. 14 is a partially cutaway front view showing an example of a conventional multilayer press.
FIG. 15 is a front view showing the heating and pressurizing step.
FIG. 16 is a front view of a main part showing a state of close contact of the upper plate.
[Explanation of symbols]
21, 22, 23 Hot platen 25 Air blowout portions 31, 32 Hot platen 35 Protruding pins 51, 52 Hot platen 65 Release lever (press-down portion)
71,72 Heating board 75 Air blow-out part (press-down part)
81,82 Hot platen 85 Protruding pin (pressing part)
L Laminated material M Laminated body P Top plate (mirror plate)
Q Top board (top board)
Qe, Qg Overhang

Claims (3)

In an apparatus in which a material to be laminated is arranged together with a top plate on each of the heating plates provided in a plurality of stages, and the movable plate is raised to pressurize and heat between the heating plate in each stage and the upper heating plate to obtain an integrated laminate. ,
An air blowing portion is provided at a close position of the upper surface plate of the heating plate on the upper side of each stage, and air is blown out at the time of lowering of the heating plate of each stage after the pressing step, and the upper surface plate is removed from the surface of the upper heating plate. An upper plate detaching mechanism of a multilayer press, wherein the upper plate is detached. In an apparatus in which a material to be laminated is arranged together with a top plate on each of the heating plates provided in a plurality of stages, and the movable plate is raised to pressurize and heat between the heating plate in each stage and the upper heating plate to obtain an integrated laminate. ,
A protruding pin which can be moved forward and backward is provided at a close position of the upper plate of the hot plate above each of the stages, and the protruding pins are moved from the surface of the upper hot plate when the hot plate of each stage is lowered after the pressing step. An upper plate detaching mechanism for a multilayer press, wherein the upper plate is detached from the surface of the upper heating plate by protruding. In an apparatus in which a material to be laminated is arranged together with a top plate on each of the heating plates provided in a plurality of stages, and the movable plate is raised to pressurize and heat between the heating plate in each stage and the upper heating plate to obtain an integrated laminate. ,
The upper plate has a protruding portion protruding outward from the surface edge of the upper heating plate of each stage, and a pressing portion is provided on a side portion of the upper heating plate to complete the pressing step. Wherein the protruding portion of the top plate is pushed down when the top plate of each stage is lowered, and the top plate is detached from the upper plate surface.

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