Solder or conductive paste printing stencil holder
AssigneePRSS - Maschinen AG
InventorJurg Holderegger
Life of this patent
Estimating the term…
Abstract
The mounting of a printing plate (4) takes place with the help of a tie beam (3), which is displaceable with respect to a fixed side (2) of a frame. The connection between the printing plate (4) and the side (2) of the frame or the tie beam (3) consists of a plurality of bolts (17), which are distributed along support bands (16) of the frame side (2) or tie beam (3). The new apparatus allows printing plate (4) to be exchanged without requiring the frame (1) to be removed from the printing bench or the surface to be printed.
Claims20
An apparatus for solder or conductive paste printing including a frame defining a working plane and enclosing a space for mounting one of an etched, milled and laser-cut printing plate made of one of metal and plastic, said frame having two opposite sides, a plurality of mounting bolts and a plurality of apertures the printing plate being secured to at least said two opposite sides of the frame with said plurality of mounting apertures and said plurality of mounting bolts,
- characterized in that,
- one of the two sides of the frame is a tie beam and includes means for moving the tie beam with respect to the other one of two sides, the tie beam being guided by resiliently mounted guide bolts and pivotally connected to said guide bolts, an abutment is secured to and located at a fixed distance from the other side of the frame said tie beam being displaceable with respect to said abutment, a support band for the plate provided along each of the two frame sides for the plate, the support band being in the working plane of the frame which receives the plate, there being, distributed along the support band, a plurality of said mounting bolts provided with heads for releaseably securing plates of differing thicknesses in the working plane, said mounting bolts being fixedly secured to the respective frame side, the mounting bolts extending inwardly from the working plane into the space enclosed by the frame, the plate being removable from said frame via said mounting bolts.
A printing plate for solder or conductive paste printing, for use in a solder or paste applying apparatus including a plurality of mounting bolts extending in a direction along opposite frame sides, said plate comprising at least two opposing sides with edges, said plate having first mounting apertures along the edges of at least said two opposing sides, both said edges of the plate being a second corresponding elongated centering mounting aperture for the positioning and centering of the plate in the apparatus, said second elongated centering mounting aperture decreasing in width toward the corresponding plate edge, said first and second apertures receiving one of said mounting bolts for releasably securing the plate to said frame sides.
An apparatus for solder or conductive paste printing with a printing plate having a plurality of apertures, said apparatus comprising:
- a frame having at least two opposite sides defining a working plane and enclosing a space, one of said sides comprising a hollow tie beam moveable relative to the other side;
- a flexible tube in the tie beam having means for being pressurized for tensioning the plate, said tube having a rectangular section in the pressurized state and bellows-like folded sides in the relaxed state:
- resilient means including guide means for resiliently guiding the tie beam relative to the frame other side:
- means for pivotally connecting the resilient means to said tie beam;
- a support band connected to each of said sides for receiving said printing plate in said working plane:
- and
- a plurality of plate mounting bolts distributed along each said support band adapted to mate with and receive said plate apertures, said bolts having heads spaced from said support bands for releaseably receiving plates of differing thicknesses therebetween in the frame working plane, said bolt heads extending into said space.
An apparatus for solder or conductive paste printing with a printing plate having a plurality of plate securing apertures, said apparatus comprising:
- a frame having at least two opposite sides defining a working plane and enclosing a space, one of said sides comprising a hollow tie beam moveable relative to the other side;
- a flexible tube in the tie beam adapted to be pressurized for tensioning the plate, said tube having a rectangular section in the pressurized state and bellows-like folded sides in the relaxed state:
- resilient means including guide means for resiliently guiding the tie beam relative to the frame other side;
- means for hingedly connecting the resilient means to said tie beam;
- a support band connected to each said sides for receiving said printing plate in said working plane;
- a plurality of plate securing bolts distributed along each said support band adapted to mate with and receive said plate apertures, said bolts having heads spaced from said support bands for releaseably receiving plates of differing thicknesses therebetween in the frame working plane, said bolts extending into said space;
- and
- a mounting positioning bolt centrally located on each frame side for receiving a corresponding centrally located positioning aperture in said plate, the positioning bolt and aperture having closely matching diameters for centering and positioning the plate relative to the frame, said securing apertures being larger than the corresponding securing bolts received thereby for providing play therebetween.
Dependencies are inferred from the claim text.