US 2019/0320536 A1 · PRINTING DEVICE AND PRINTING METHOD FOR APPLYING A VISCOUS OR PASTY MATERIAL

Abstract

The invention relates to a printing device for applying a viscous or pasty material onto a support substrate and molding a defined material geometry by means of a template. The template which is provided for application and molding purposes has at least one continuous opening, and the opening side facing the support substrate functions as an application opening surface. Furthermore, the opening, in particular the inner wall thereof, forms an outer border for the material geometry outer surface to be molded. As a whole, the template is designed such that an adhesive force of the viscous or pasty material acting on the inner wall of the opening is overcome by means of a relative movement, in particular a movement relative to the support substrate. The template is advantageously formed as a stack composite of at least two sub-templates adjoining each other in a connection region. Each of the sub-templates has at least one sub-opening, by means of which the inner wall of the opening is divided into proportional molding surfaces of the sub-template. Furthermore, sub-opening connection surfaces which correspond to one another are formed in the connection region, and each of the sub-templates can be reversibly separated in the connection region.

Claims23

Dependent claims

A printing device (100) for applying a viscous or pasty material (40) onto a carrier substrate (20) and shaping a defined material geometry (45) by means of a stencil, wherein the stencil has at least one continuous opening (55) with an application opening surface (50.1c) facing the carrier substrate (20) and the inner wall of the opening (55) forms an outer boundary for an outer surface (46) of the material geometry (45) to be shaped, wherein the stencil is configured to overcome an adhesive force of the viscous or pasty material (40) acting on the inner wall of the opening (55) by means of a relative movement,

characterized in that
the stencil is formed as a stack composite (50) of at least two sub-stencils (50.1, 50.2, 50.x) adjoining each other in a connection region (30), wherein the sub-stencils (50.1, 50.2, 50.x) each have at least one partial opening (55.1, 55.2, 55.x), by means of which the inner wall of the opening (55) is divided into proportional shaping areas (50.1a, 50.2a, 50.xa) of the sub-stencils (50.1, 50.2, 50.x), and wherein connection surfaces (50.1a, 50.1b) of the sub-openings (55.1, 55.2, 55.x) which correspond to one another are formed in the connection region (30), and the sub-stencils (50.1, 50.2, 50.x) can each be reversibly separated from one another in the connection region (30).

A printing method for applying a viscous or pasty material (40) onto a carrier substrate (20) and for shaping a defined material geometry (45) using a stencil, wherein the stencil has at least one continuous opening (55) with an application opening surface (50.1c) facing the carrier substrate (20) and the inner wall of the opening (55) forms an outer boundary for the outer surface (46) of the material geometry (45) to be shaped, the method comprising

determining a maximum shaping area (50.1a, 50.2a, 50.xa) of the stencil for a circumferential outer surface section (46.1, 46.2, 46.x) of the material geometry (45), at which an adhesive force of the viscous or pasty material (40) acting on the shaping area (50.1a, 50.2a, 50.xa) can still be overcome under a relative movement of the stencil, and
at delayed intervals, beginning the removal of at least two outer surface sections (46.1, 46.2, 46.x) of the material geometry (45) from the mold, in each case having a surface area up to the size of the specified shaping area (50.1a, 50.2a, 50xa), by means of the stencil.

Dependencies are inferred from the claim text.

Printing device and printing method for applying a viscous or pasty material

Life of this patent

Printing device and printing method for applying a viscous or pasty material

Life of this patent

Abstract

Claims23