Abstract:
A screen printing machine and its locking device are disclosed. The screen printing device comprises a printing frame for holding printing stocks, a screen frame for supporting a screen and a squeegee; and at least one locking device including a first electromagnetic member mounted on one of the printing frame and the screen frame and connected to a power source and an attracted member mounted on the other one of the printing frame and the screen frame. When the screen frame is closed to the printing frame, the power source supplies power to the first electromagnetic member to enable the first electromagnetic member to attract the attracted member; when the printing is finished, the power source is turned off which makes the attraction of the first electromagnetic member to the attracted member disappear, and the printing frame and the screen frame are unlocked.
Abstract:
An apparatus, system and method for detecting ink errors in optical disk printing are provided. The apparatus, system and method include a sensor mount structure and a plurality of optical sensors mounted on the mount structure and in registration with a print table. A controller selectively activates the optical sensors in accordance with a relative motion between the optical sensors and the printing station such that the optical sensors each scan an assigned region of the print table to detect ink outside of an area where an object to be printed is placed.
Abstract:
A method for manufacturing a substrate having a surface with projections. A printing plate, with a least one part formed from a ferromagnetic material, and which has viscous material penetrating portions for forming projections on a flat surface, is brought into contact with the surface of a substrate. The printing plate is then clamped to the substrate by means of attraction by a magnetic force from behind the substrate. The viscous material penetrating portions of the printing plate are filled up with a viscous material for forming projections. The viscous material forms a layer on the substrate in a shape that is the same as that of the projections. The printing plate is separated from the substrate and the viscous material printed onto the substrate solidifies to form the projections.
Abstract:
A printer plate locating device used in the alignment of printer plates with respect to a screen or stencil holder of a screen printing machine. The present invention is particularly useful when used in a multi-station printing machine where the printing machine sequentially moves the printer plates into a printing station to affect the printing or image transfer. The present invention consists of two securely connected rigid plates and a system of actuators. The mounting plate 1 acts as a support or structural member for the rest of the apparatus. The alignment plate, being smaller in size than the mounting plate, provides edges against which the substrate locating devices of the printer plate make contact. In operation, the present invention is fastened to the screen holder in place of a screen or stencil on the first station of the machine. The actuators are positioned relative to the printer plate such that upon energizing, the actuators propel the printer plate into contact with the alignment plate of the apparatus. Additionally, access is provided to the lockdown devices of the printer plate to enable clamping or lockdown to the machine while the actuators are energized, thus maintaining position of the printer plate relative to the screen holder.
Abstract:
A component mounting line has a screen printing apparatus and component mounting apparatuses. Each component mounting apparatus includes a first substrate carrying lane and a second substrate carrying lane, carries a first type substrate on which a first pattern has been printed in the first substrate carrying lane, performs a component mounting-relevant operation on the first type substrate, carries a second type substrate on which a second pattern has been printed in the second substrate carrying lane, and performs a component mounting-relevant operation on the second type substrate. The screen printing apparatus selects a type of the substrate to be carried in depending on whether a substrate is carried in the second component mounting apparatus downstream from the screen printing apparatus.
Abstract:
An automatic method for decorating rough or refined glass or plastic material items with raised patterns is provided. The items are deposited on a carrier and continuously displaced. The method includes screen printing a decoration on each item with UV ink, carrying out ultraviolet pre-polymerization of the ink of the decoration, the ink remaining slightly tacky at a surface, hot laying a paper film by adherization on the ink of the decoration of each item and carrying out a final polymerization of the decoration with ultraviolet radiation. Automatic installations for performing the method are also provided.
Abstract:
A screen printer includes: a mask with a pattern hole; a substrate holder that clamps and holds a substrate at sides of the substrate by a pair of clamping members below the mask; a substrate holder elevation mechanism that moves the substrate holder up and down to contact the substrate with a lower surface of the mask; a paste filling unit that fills the pattern hole with a paste; a mask contact member that is provided in the clamp member and that contacts with the mask in a state in which the substrate contacts with the mask; and an urging portion that is provided in the clamp member and that includes an urging unit that urges the mask contact member upward.
Abstract:
Device for silk screen printing on an object, comprising a screen holder module for holding a screen; and a squeegee holder module for holding a squeegee for scraping over the screen along a direction of scraping. The squeegee holder module comprises a support mounted on the chassis, and a removable squeegee holder attached to the support, the support having a receiving surface for receiving the squeegee holder, and the squeegee holder having a fastening plate for fastening the squeegee holder on the receiving surface with a scraping direction extending along a direction of printing (Ox), and an alternative fastening plate for fastening the squeegee holder in an alternative printing position with a scraping direction extending along an alternative direction of printing (Oy).
Abstract:
This invention is a retractable registration apparatus (10) mounted on a printing machine (12) for aligning a screen printing frame (28) with an image platform (14). The apparatus (10) has a pair of registration mechanisms, such as pins (64), for coupling with the screen printing frame (28) and a registration appendage (56) which carries the registration mechanism (64). The registration appendage (56) is rotatably mounted to the printing machine (12) for allowing rotation of the registration appendage (56) from a registration position to a retracted position. A locking mechanism, such as a detent (102), retains the appendage (56) with the registration mechanism (64) in the exact registration position.
Abstract:
An apparatus for printing a solder paste to a printed circuit board with use of a screen mask plate and a squeegee. The apparatus includes a device for moving one of the printed circuit board and the screen mask plate at a first moving speed in a direction to be separated from the other of them after printing of the solder paste and until the moving one of the printed circuit board and the screen mask plate reaches a plate-separation position which is a position immediately before the screen mask plate and the printed circuit board are completely separated from each other, and a controller for changing the first moving speed to a second moving speed higher than the first moving speed when the moving one of the printed circuit board and the screen mask plate reaches the plate-separation position.