US 4,698,192 A · Apparatus for manufacturing a laminated unit of ceramic green sheets

Abstract

An apparatus for manufacturing a laminated unit of ceramic green sheets comprises an endless belt, and an applying apparatus provided at a predetermined position on the running path of the endless belt. The applying apparatus includes a reservoir for storing a ceramic slurry and a moveable blade. When the belt runs with the blade spaced a predetermined distance from the top surface of the endless belt, the ceramic slurry flows out through a gap between the blade and the belt and, thus, is applied on the belt to a predetermined thickness. The applied ceramic slurry is dried by a drier so as to form a ceramic green sheet. A conductive paste is printed on the top surface of the ceramic green sheet by a printing apparatus. The printed conductive paste is dried by a drier. The ceramic green sheet with the conductive paste printed thereon is brought again to the applying apparatus due to the movement of the endless belt, the blade of the applying apparatus is further displaced upward, and ceramic slurry is applied on the previously formed ceramic green sheet. By repeating such applied again on the ceramic green sheet. By repeating such a process, a laminated unit of the ceramic green sheets is obtained.

Claims19

Dependent claims

A method of manufacturing a unit of laminated ceramic green sheets, comprising the steps of:

(a) applying ceramic slurry on an endless belt running in a predetermined direction to a predetermined thickness, said belt being driven continuously through an applying location while carrying out said applying step;
(b) curing said applied ceramic slurry and thereby forming a ceramic green sheet;
(c) applying a further coating of ceramic slurry on said cured ceramic green sheet;
(d) curing said further coating of ceramic slurry applied on said ceramic green sheet and thereby forming a further ceramic green sheet;
(e) driving said belt to carry at least one of said ceramic green sheets to a printing location following the formation thereof;
(f) printing an electronic material paste on said at least one ceramic green sheet, said belt being driven intermittently through said printing location while carrying out said printing step;
and
(g) drying said printed electronic material paste.

5 more elements

A manufacturing apparatus for manufacturing a unit of laminated ceramic green sheets, comprising:

an endless belt moveable in a downstream direction along a predetermined running path, at least the outermost surface of said endless belt comprising a synthetic resin material;
a reservoir for storing a ceramic slurry which is situated above a predetermined position on the running path of said endless belt and which has an open outlet facing a main surface of said endless belt so that said slurry is in constant contact with said main surface of said belt and with any material located on said surface of said belt;
a doctor blade forming part of said reservoir and being located at a downstream end of said reservoir, said doctor blade being displaceable in a vertical direction so as to adjust the distance between said belt and a doctoring surface of said blade;
and
blade displacement means connected to said blade for displacing said blade along said vertical direction so as to meter the amount of slurry that is applied to said main surface of said belt and to any such material located on said main surface of said belt;
a first drying means which is situated downstream of said reservoir and adjacent said endless belt and which is effective for drying said applied ceramic slurry so as to form a ceramic green sheet;
a printing means which is situated downstream of said first drying means and adjacent said endless belt and which is effective for printing an electronic material paste on said ceramic green sheet;
a first driving means for continuously moving said endless belt through said reservoir;
and
a second driving means for intermittently moving said endless belt through said printing means.

7 more elements

A manufacturing apparatus for manufacturing a unit of laminated ceramic green sheets, comprising:

an endless belt moveable in a downstream direction along a predetermined running path;
a reservoir for storing a ceramic slurry which is situated above a predetermined position on the running path of said endless belt and which has an open outlet facing a main surface of said endless belt so that said slurry is in constant contact with said main surface of said belt and with any material located on said surface of said belt;
a doctor blade forming part of said reservoir and being located at a downstream end of said reservoir, said doctor blade being displaceable in a vertical direction so as to adjust the distance between said belt and a doctoring surface of said blade;
and
blade displacement means connected to said blade for displacing said blade along said vertical direction so as to meter the amount of slurry that is applied to said main surface of said belt and to any such material located on said main surface of said belt;
a first drying means which is situated downstream of said reservoir and adjacent said endless belt and which is effective for drying said applied ceramic slurry to thereby form a ceramic green sheet;
a printing means which is situated downstream of said first drying means and adjacent said endless belt and which is effective for printing an electronic material paste on said ceramic green sheet;
a second drying means which is situated downstream of said printing means and adjacent said endless belt and which is effective for drying said printing electronic material paste;
a first driving means for continuously moving said endless belt through said reservoir;
and
a second driving means for intermittently moving said endless belt through said printing means.

8 more elements

Dependencies are inferred from the claim text.

Apparatus for manufacturing a laminated unit of ceramic green sheets

Life of this patent

Apparatus for manufacturing a laminated unit of ceramic green sheets

Life of this patent

Abstract

Claims19