The application relates to a printing machine for printing on planar substrates, in particular circuit boards, including: a printing table which extends in a horizontal plane and on which at least one substrate to be printed on can be arranged; at least one printing device assigned to the printing table, which printing device has a screen holder for an interchangeable printing screen and a doctor device assigned to the screen holder, wherein, by means of the doctor device, a printing material can be applied onto the substrate to be printed on through the printing screen; and a screen magazine assigned to the doctor device for storing at least one printing screen for the doctor device. According to the invention, the screen magazine has a housing with at least two drawers which are arranged in parallel to one another and are each designed to hold one printing screen, wherein the housing is pivotably arranged such that it can pivot between a first end position, in which the drawers are oriented parallel to the horizontal plane, and a second end position, in which the drawers are oriented at an angle to the horizontal plane, in particular vertical thereto.

The application relates to a printing machine for printing on planar substrates, in particular circuit boards, including: a printing table which extends in a horizontal plane and on which at least one substrate to be printed on can be arranged; at least one printing device assigned to the printing table, which printing device has a screen holder for an interchangeable printing screen and a doctor device assigned to the screen holder, wherein, by means of the doctor device, a printing material can be applied onto the substrate to be printed on through the printing screen; and a screen magazine assigned to the doctor device for storing at least one printing screen for the doctor device. According to the invention, the screen magazine has a housing with at least two drawers which are arranged in parallel to one another and are each designed to hold one printing screen, wherein the housing is pivotably arranged such that it can pivot between a first end position, in which the drawers are oriented parallel to the horizontal plane, and a second end position, in which the drawers are oriented at an angle to the horizontal plane, in particular vertical thereto.

A screen mask inspection device inspects a screen mask including a screen opening that forms a printing pattern, and includes: an inspection control device that detects solder position information of a solder paste printed on a substrate via the screen opening, and based on the solder position information, determines whether a quality of printing using the screen mask is good or bad, the solder position information being based on an amount of positional misalignment of the solder paste actually printed on the substrate relative to a predetermined reference position.

A squeegee drip collection system is configured to receive assembly material from at least one squeegee blade of the print head assembly. The squeegee drip collection system includes a paste shield coupled to the print head gantry and configured to be moved between a retracted position in which the paste shield is spaced from the at least one squeegee blade and an extended position in which the paste shield is positioned under the at least one squeegee blade. The squeegee drip collection system further includes a paste shield removal assembly configured to uncouple the paste shield from the print head gantry and to remove the paste shield.

A solder printing machine, which is configured to print paste-state solder on a board by use of a mask and a squeegee configured to move on an upper surface of the mask, includes a bed, a mask frame fixedly provided on the bed and configured to hold the mask, and a squeegee frame fixedly provided on the bed, formed separately from the mask frame, and configured to support a driving mechanism configured to drive the squeegee.

A tensioning frame for tensioning a printing screen comprises struts to reinforce the constituent beams. These may be provided either on a supplementary brace plate or integrally formed with the beam. A shaft may be used to retain engagement bodies within pockets formed in the beam.

A tensioning frame for tensioning a printing screen comprises struts to reinforce the constituent beams. These may be provided either on a supplementary brace plate or integrally formed with the beam. A shaft may be used to retain engagement bodies within pockets formed in the beam.

A tensioning frame (22) for tensioning a printing screen (3) comprises a plurality of elongate beams (30A-30D) which extend around the periphery of the printing screen (3) and define the tensioning frame (22), wherein at least one of the beams (30A-30D) comprises an opening (32) which is dimensioned to permit a printing screen (3) to be received therethrough, in a lateral direction (A). Mechanisms are described for engagement of the tensioning screen (22) and printing screen (3), as well as an apparatus and a method permitting the lateral loading of the printing screen (3).

A tensioning frame (22) for tensioning a printing screen (3) comprises a plurality of elongate beams (30A-30D) which extend around the periphery of the printing screen (3) and define the tensioning frame (22), wherein at least one of the beams (30A-30D) comprises an opening (32) which is dimensioned to permit a printing screen (3) to be received therethrough, in a lateral direction (A). Mechanisms are described for engagement of the tensioning screen (22) and printing screen (3), as well as an apparatus and a method permitting the lateral loading of the printing screen (3).

Disclosed is a precision cut printing screen in which the features of a printing pattern are defined on a sheet material by a plurality of apertures within a target printing boundary. Also disclosed is a method of making the printing screen.