Abstract: A screen printing apparatus includes a squeegee driver that lifts/lowers a first lifting/lowering shaft and a second lifting/lowering shaft; a link mechanism including a swinging member that pivots about a horizontal axis by lifting/lowering operations of the first lifting/lowering shaft and the second lifting/lowering shaft; a squeegee unit installed to the swinging member; and a controller that controls at least a height of the squeegee unit and an orientation of the squeegee unit in a rotating direction by controlling the squeegee driver.

Abstract: A screen printing apparatus includes a print head, a moving base, and a mask cleaner. The print head prints a paste onto a board through the mask. The moving base moves under the mask in a horizontal paste scraping direction. The mask cleaner is mounted to the moving base and moves under the mask integrally with the moving base, and scrapes off the paste adhering to a lower surface of the mask. A base body is mounted to the moving base and includes a longitudinal side being horizontal and intersecting the paste scraping direction. Plurality of blades are detachably mounted to the base body and extending in the longitudinal direction and are arranged side by side in parallel to the paste scraping direction and cause a paste scraping edge protruding upward from the base body to come into abutment against the lower surface of the mask.

Abstract: A screen printing apparatus includes a squeegee driver that lifts/lowers a first lifting/lowering shaft and a second lifting/lowering shaft; a link mechanism including a swinging member that pivots about a horizontal axis by lifting/lowering operations of the first lifting/lowering shaft and the second lifting/lowering shaft; a squeegee unit installed to the swinging member; and a controller that controls at least a height of the squeegee unit and an orientation of the squeegee unit in a rotating direction by controlling the squeegee driver.

Abstract: A screen printing apparatus includes a print head, a moving base, and a mask cleaner. The print head prints a paste onto a board through the mask. The moving base moves under the mask in a horizontal paste scraping direction. The mask cleaner is mounted to the moving base and moves under the mask integrally with the moving base, and scrapes off the paste adhering to a lower surface of the mask. A base body is mounted to the moving base and includes a longitudinal side being horizontal and intersecting the paste scraping direction. Plurality of blades are detachably mounted to the base body and extending in the longitudinal direction and are arranged side by side in parallel to the paste scraping direction and cause a paste scraping edge protruding upward from the base body to come into abutment against the lower surface of the mask.

Abstract: A screen printing apparatus includes: a barrier member which butts against a screen mask and a squeegee to prevent paste on the screen mask from escaping to an outside of a printing width of the board; and an urging mechanism which urges the barrier member toward the screen mask. The urging mechanism includes: a first magnetic member held by the squeegee head such that a first pole surface having a first magnetic pole is directed toward the barrier member; and a second magnetic member held by the barrier member such that a second pole surface having a second magnetic pole opposite to the first magnetic pole is directed toward the first magnetic member, whereby the urging mechanism urges the barrier member by an attracting magnetic force acting between the first pole surface and the second pole surface.

Abstract: In a screen printing apparatus, a squeegee is slid on a mask contacting a board to print paste onto the board via pattern holes formed in the mask. The screen printing apparatus includes: a box-like member including a top-plate portion in which first suction hole is formed and which is allowed to contact a lower surface of the board; a blower suction pipe which communicates with an internal space of the box-like member, and which extends outside the box-like member; a motor which sucks air through the blower suction pipe to generate a blower suction force in the first suction hole; and an inverter which changes frequencies of the motor.

Abstract: In a screen printing apparatus, a squeegee is slid on a mask contacting a board to print paste onto the board via pattern holes formed in the mask. The screen printing apparatus includes: a box-like member including a top-plate portion in which first suction hole and a second section hole are formed and which is allowed to contact the board; a blower suction pipe communicating with an internal space of the box-like member and extending outside the box-like member; a blower suction source sucking air through the blower suction pipe to generate a blower suction force in the first suction hole; a vacuum suction pipe connected to the second suction hole and extending through the internal space to an outside of the box-like member; and a vacuum pressure supplying device supplying a vacuum pressure to the second suction hole through the vacuum suction pipe.

Abstract: A screen printing apparatus includes: a barrier member which butts against a screen mask and a squeegee to prevent paste on the screen mask from escaping to an outside of a printing width of the board; and an urging mechanism which urges the barrier member toward the screen mask. The urging mechanism includes: a first magnetic member held by the squeegee head such that a first pole surface having a first magnetic pole is directed toward the barrier member; and a second magnetic member held by the barrier member such that a second pole surface having a second magnetic pole opposite to the first magnetic pole is directed toward the first magnetic member, whereby the urging mechanism urges the barrier member by an attracting magnetic force acting between the first pole surface and the second pole surface.

Abstract: In a screen printing apparatus, a squeegee is slid on a mask contacting a board to print paste onto the board via pattern holes formed in the mask. The screen printing apparatus includes: a box-like member including a top-plate portion in which first suction hole and a second section hole are formed and which is allowed to contact the board; a blower suction pipe communicating with an internal space of the box-like member and extending outside the box-like member; a blower suction source sucking air through the blower suction pipe to generate a blower suction force in the first suction hole; a vacuum suction pipe connected to the second suction hole and extending through the internal space to an outside of the box-like member; and a vacuum pressure supplying device supplying a vacuum pressure to the second suction hole through the vacuum suction pipe.

Abstract: In a screen printing apparatus, a squeegee is slid on a mask contacting a board to print paste onto the board via pattern holes formed in the mask. The screen printing apparatus includes: a box-like member including a top-plate portion in which first suction hole is formed and which is allowed to contact a lower surface of the board; a blower suction pipe which communicates with an internal space of the box-like member, and which extends outside the box-like member; a motor which sucks air through the blower suction pipe to generate a blower suction force in the first suction hole; and an inverter which changes a number of rotations of the motor.

Abstract: There are provided an operating knob 42 capable of movement operation in a front-back direction with respect to a right and left side support part 31, a rod member 45 whose front end is joined to the operating knob 42, a back edge stopper 47 which is moved in the front-back direction through the rod member 45 and also is abutted on the back edge of the mask 15 by fixing operation of the rod member 45 by the operating knob 42, and a front edge stopper 53 abutted on the front edge of the mask 15.

Abstract: There are provided an operating knob 42 capable of movement operation in a front-back direction with respect to a right and left side support part 31, a rod member 45 whose front end is joined to the operating knob 42, a back edge stopper 47 which is moved in the front-back direction through the rod member 45 and also is abutted on the back edge of the mask 15 by fixing operation of the rod member 45 by the operating knob 42, and a front edge stopper 53 abutted on the front edge of the mask 15.