Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2000-04-03
2003-02-04
Crispino, Richard (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S353000, C156S517000, C156S580000
Reexamination Certificate
active
06514372
ABSTRACT:
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a manufacturing method and a manufacturing apparatus of a thin film laminated article. More particularly, it relates to a manufacturing method and a manufacturing apparatus of a thin film laminated article for manufacturing laminated ceramic capacitor or the like by cutting, for example, a ceramic sheet on which an electrode pattern is formed into a sheet piece of a specified size, and laminating.
BACKGROUND ART
Hitherto, in a manufacturing apparatus for manufacturing electronic components such as laminated ceramic capacitors, a CCD imaging device is used for positioning in the case of printing an electrode pattern on a ceramic sheet formed on a flexible support called a carrier film, or cutting the ceramic sheet on which the electrode pattern is printed into a sheet piece of a specified size (refer to Japanese Laid-open Patent Publication No. 8-167544 and Japanese Laid-open Patent Publication No. 10-284346).
FIG. 5
shows a schematic structure of the thin film laminated article manufacturing apparatus of the prior art for positioning by using a CCD imaging device when cutting the ceramic sheet on which the electrode pattern is printed into a sheet piece of a specified size.
This manufacturing apparatus
100
comprises a film conveying mechanism
101
for conveying a carrier film F on the surface of which ceramic sheet G is formed, a cutting and conveying mechanism
102
for cutting the ceramic sheet G on the surface of the carrier film F conveyed by this conveying mechanism
101
into a sheet piece of a specified size, and conveying to a specified position, a positioning mechanism
103
for positioning when the cutting and conveying mechanism
102
cuts off the ceramic sheet G, and a laminating and compressing mechanism
104
for laminating and compressing the ceramic sheet conveyed to the specified position by the cutting and conveying mechanism
102
.
The film conveying mechanism
101
has a delivery device
105
in which the carrier film F having the ceramic sheet G formed on the surface is set, and the carrier film F delivered from this delivery device
105
is conveyed to a take-up device
107
while being guided by rolls
106
, and is taken up.
The cutting and conveying mechanism
102
includes a conveying unit
110
having a cutting blade
108
for cutting the ceramic sheet G into a sheet piece of a specified size on a peeling table
115
used as a support stand, and a suction board
109
for sucking the ceramic sheet G, a rod-less fluid cylinder
111
for moving the conveying unit
110
between a cut-off position for cutting off the ceramic sheet G by the conveying unit
110
and a laminating position for laminating and compressing the sheet piece by the laminating and compressing mechanism
104
, and a ball-screw mechanism
112
for moving this rod-less fluid cylinder
111
by a short distance for fine adjustment.
The positioning mechanism
103
includes a CCD imaging device
113
a
for imaging the positioning mark printed at a specified interval corresponding to the electrode pattern on the ceramic sheet G, and an image processing device
113
b
for processing the image taken by the CCD imaging device
113
a
, and by the correction moving distance obtained by processing the image information of the positioning mark taken by this CCD imaging device
113
a
by the image processing device
113
b
, it is designed to determine positioning when moving the conveying unit
110
from the laminating position to the cut-off position.
The laminating and compressing mechanism
104
is composed of a press table
114
for laminating and compressing the ceramic sheet conveyed up to the laminating position by the cutting and conveying mechanism
102
, and a hydraulic cylinder
150
for pushing up this press table
114
.
In this prior art, the conveying unit
110
is moved by an almost full distance by the rod-less fluid cylinder
111
, and the conveying unit
110
is positioned so that the ball-screw mechanism
112
may move the cylinder
111
by a short distance. It hence prevents deviation of position of the sheet piece being laminated and compressed due to thermal expansion in the axial direction of the ball-screw shaft
112
a
by friction heat, for example, when moving the conveying unit
110
the full distance by using the ball-screw mechanism
112
.
Referring next to FIG.
6
and
FIG. 7
, in the case of moving the full distance by using the ball-screw mechanism
112
, deviation of position of sheet piece being laminated and compressed due to thermal expansion in the axial direction of the ball-screw shaft
112
a
due to friction heat is explained below.
FIG. 6
shows a starting state of the manufacturing apparatus
100
, and
FIG. 7
shows a laminating state of a specified number of sheet pieces.
In FIG.
6
and
FIG. 7
, point A shows the bearing position at the leading end of the ball-screw shaft
112
a
of the ball-screw mechanism
112
. Point B
1
denotes the reference position of the conveying unit
110
stopped at the laminating position, that is, the center of the press table
114
, and the distance from point A to point B
1
is L
1
. Point B
2
shows the position of the conveying unit
110
stopped at the laminating position actually at the point shown in FIG.
7
. That is, in the state in
FIG. 6
, the position of the conveying unit
110
coincides with the center of the press table
114
, but in the state in
FIG. 7
, the stopping position at the laminating position of the conveying unit
110
is point B
2
, being deviated from point B
1
by &Dgr;L
1
in the leftward direction in the drawing due to the effect of thermal expansion.
Point C
1
is a fixing position of the CCD imaging device
113
a
, and is also a reference position at the cut-off position of the positioning mark printed on the ceramic sheet G. Point C
1
is a point moved from point B
1
by L
2
in the leftward direction in the drawing.
Point D
1
shows a position when the conveying unit
110
is moved to the cut-off position, assuming that the deviation detected by the CCD imaging device
113
a
to be 0. Point D
1
coincides with point C
1
, and actually distance L
2
is corrected depending on the deviation of positioning mark from point C
1
, and the moving distance when the conveying unit
110
is moved from point B
1
to the cut-off position.
Point D
2
shows a position in which the conveying unit
110
is stopped at the cut-off position, assuming that the deviation detected by the CCD imaging device
113
a
to be 0 at the point shown in FIG.
7
. The distance from point D
2
to point B
2
is L
2
+&Dgr;L
2
due to the effect of thermal expansion of the ball-screw shaft
112
a
. Therefore, in the state shown in
FIG. 7
, the conveying unit
110
is stopped at a position deviated from point D
1
by &Dgr;L
1
+&Dgr;L
2
in the leftward direction in the drawing.
As a result, at the point in
FIG. 7
, the sheet piece laminated at the laminating position is deviated from the initial position by &Dgr;L
1
in the leftward direction in the drawing, and the position of the positioning mark (that is, the position of the electrode pattern; in
FIG. 7
, line segment E shows the position of the positioning mark) is deviated by &Dgr;L
2
in the rightward direction in the drawing.
Thus, when moving the conveying unit
110
between the cut-off position and laminating position by the ball screw mechanism
112
, since the ball screw shaft
112
a
is elongated by thermal expansion from start until the temperature of the ball-screw shaft
112
a
is stabilized, the electrode pattern of the laminated sheet pieces is deviated. In this respect, in the prior art, since the conveying unit
110
is moved in the majority between the cut-off position and laminating position by the rod-less fluid cylinder
111
, deviation of electrode pattern due to effect of thermal expansion of the ball-screw shaft
112
a
may be suppressed to an ignorable level.
In the prior art, however, the manufacturing apparatus requires a relatively complicated mechanism of the r
Chan Sing P
Crispino Richard
New Create Corporation
Rader & Fishman & Grauer, PLLC
LandOfFree
Manufacturing method and manufacturing apparatus of thin... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Manufacturing method and manufacturing apparatus of thin..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Manufacturing method and manufacturing apparatus of thin... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3181106