A squeegee assembly for a screen printing machine has a squeegee support body having a side configured to be fastened to the screen printing machine, a front portion provided with a front element and a rear portion provided with a rear element, respectively having a front element printing end and a rear element printing end for screen printing by ink. The front element printing end is spaced apart with respect to the rear element printing end in a translation direction so that an ink collection space is formed therebetween. In the front portion, one or more ink passage openings are formed for allowing passage of ink from a region in front of the front element towards the ink collection space during translation of the squeegee assembly during screen printing. Ink in the ink collection space is draggable by the rear element during translation of the squeegee assembly.

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 solder recovery device includes a recovery plate, a lifting and lowering device, and multiple connecting sections. The recovery plate recovers solder. The lifting and lowering device lifts up and lowers the recovery plate. The multiple connecting sections include a fixing portion provided on the recovery plate and configured to detachably attach the recovery plate to the lifting and lowering device and a fixed portion provided on the lifting and lowering device and to which the fixing portion is fixed, and are configured to restrain the recovery plate from moving in a predetermined direction relative to the lifting and lowering device when the fixing portion is fixed to the fixed portion. The multiple connecting sections have different restraining directions in which the recovery plate is restrained from moving relative to the lifting and lowering device.

A solder recovery device includes a recovery plate, a lifting and lowering device, and multiple connecting sections. The recovery plate recovers solder. The lifting and lowering device lifts up and lowers the recovery plate. The multiple connecting sections include a fixing portion provided on the recovery plate and configured to detachably attach the recovery plate to the lifting and lowering device and a fixed portion provided on the lifting and lowering device and to which the fixing portion is fixed, and are configured to restrain the recovery plate from moving in a predetermined direction relative to the lifting and lowering device when the fixing portion is fixed to the fixed portion. The multiple connecting sections have different restraining directions in which the recovery plate is restrained from moving relative to the lifting and lowering device.

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 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 screen printer that measures a tension of a mask in a machine, including a mask holding device configured to hold a mask; a board device configured to position a board from below with respect to the mask held by the mask holding device; a squeegee device configured to apply and spread a cream solder on an upper surface of the mask; a mask pressing device configured to press the mask at a set pressure by a pusher which is installed on an upper travelling device or a lower travelling device with respect to the mask; a mask measurement device, installed on the upper travelling device or the lower travelling device to be opposed to the pusher, which is configured to measure a height of the mask; and a tension measurement device configured to calculate a tension of the mask based on a measured value of the mask measurement device.

A screen printer that measures a tension of a mask in a machine, including a mask holding device configured to hold a mask; a board device configured to position a board from below with respect to the mask held by the mask holding device; a squeegee device configured to apply and spread a cream solder on an upper surface of the mask; a mask pressing device configured to press the mask at a set pressure by a pusher which is installed on an upper travelling device or a lower travelling device with respect to the mask; a mask measurement device, installed on the upper travelling device or the lower travelling device to be opposed to the pusher, which is configured to measure a height of the mask; and a tension measurement device configured to calculate a tension of the mask based on a measured value of the mask measurement device.

A squeegee for spreading a conductive paste across a stencil during a stencil printing process is provided. The stencil covers an underlying base such that the conductive paste is spread across the stencil and into openings in the stencil to contact the underlying base. The squeegee has a leading surface at the front of the squeegee, a trailing surface at the rear of the squeegee, and a bottom surface. The bottom surface is oriented at an oblique angle relative to the leading surface and the trailing surface. In some embodiments, a rear corner or edge of the squeegee is the contact point between the squeegee and the stencil. Some of the paste can be collected beneath the bottom surface and scraped along with the squeegee.