Fuji Corporation

Fuji Machine Mfg. Co., Ltd.

Shoji Fukakusa

Yoshimune Yokoi

Ritsuo Hirukawa

Takeshi Kondo

Naoki Matsuzaki

Yoji Fujita

Akihiro Senga

Kento Asaoka

Jun Iisaka

Mitsuaki Kato

Atsushi Torii

Minoru Kinuta

A printing apparatus including: a squeegee fixing section configured to switch to and from a fixed state in which a squeegee used to print a viscous fluid onto a print target is fixed and a released state in which the squeegee is not fixed; and a squeegee moving section configured to move the squeegee fixed by the squeegee fixing section above a screen mask during printing by moving the squeegee fixing section.

Printing apparatus

There is provided a screen printer including: a squeegee device for spreading a cream solder over a mask having formed thereon a printing pattern configured of a plurality of through holes to force the cream solder through the printing pattern; a clamping device for holding a board that is conveyed to be placed under the mask; and a lift device for disposing the board with respect to the mask in relation to a vertical direction, wherein the clamping device includes a pair of clamping portions for holding the board therebetween from a width direction, wherein the pair of clamping portions includes individually detachable clamping members that are brought into abutment with lateral end faces of the board, and wherein the clamping members individually have two or more clamping surfaces that are brought into abutment with the board in such a way that the clamping surfaces can be converted.

Screen printer

A solder paste printer for which a pressing force of squeegee towards a stencil when spreading solder paste is smaller than a printing pressure when performing solder paste printing. The force with which the solder paste is pressed downwards by the squeegee is weak, and instead of solder paste being pressed down, it spreads along the squeegee. Also, the moving speed of the squeegee when spreading the solder paste is faster than the moving speed of the squeegee when printing solder paste. Thus, because the squeegee is moving fast, before the solder paste is pressed down sufficiently to be printed, the solder paste spreads out along the squeegee. Accordingly, it is possible to appropriately spread the solder paste along the direction in which the squeegee extends.

Printing device and printing method

An object is to provide a screen printing machine capable of one-way printing on multiple boards. Solder collecting device includes collecting plate moving device, collecting plate, and scraper. Second slider of collecting plate moving device is movable in a front-rear direction along a second guide rail, and is also movable in an up-down direction. Collecting plate is placed on second slider. After squeegee passes by the tail end of printing region of mask, collecting plate is disposed so as to be positioned rearward of squeegee and collects the cream solder moved by the rearward movement of squeegee. Scraper is attached to collecting plate to be movable in a left-right direction and collects the cream solder remaining on mask.

Screen printing machine having movable collection member for collecting viscous fluid

A printing apparatus including: a cleaning section including a cleaning member and configured to perform cleaning processing of a screen mask used in printing of a viscous fluid onto a print target; a cleaning member moving section configured to perform at least one of moving the cleaning member to and from a cleaning position and an exchange position, and unloading and loading of the cleaning member; and an exchange control section configured to control the cleaning member moving section to perform cleaning member exchange processing of exchanging the cleaning member.

Printing apparatus and printing system

A first conveyor belt and second conveyor belt are disposed on guide rail which is disposed so as to extend in a circuit substrate conveyance direction. Then, the circuit substrate supported by both the conveyor belts of the first conveyor belt and the second conveyor belt is held by substrate holding device, and work is performed on the held circuit substrate. In the transfer device having such a structure, for example, when the circuit substrate on which an operation has been completed is conveyed out by the second conveyor belt, a new circuit substrate is conveyed into the transfer device by the first conveyor belt. In this way, it is possible to perform printing work on a new circuit substrate at an early stage and shorten a cycle time.

Substrate transfer device

In solder printer, solder supply device uses positive and negative pressure supply device to apply pressure inside air chamber to move solder cup inside outer tube, such that solder paste is supplied from supply nozzle. Controller, when supply of solder paste from supply nozzle is stopped, performs drive control of positive and negative pressure supply device to decrease the pressure inside air chamber, and uses timer to measure the time required from the starting of decreasing the pressure inside the air chamber to when the pressure inside air chamber has reached a set pressure. Because this required time corresponds to the movement amount of solder cup from the start of supply of the solder paste to when supply is stopped, controller using the measured required to estimate the remaining amount of the solder paste in detail with good accuracy.

Viscous fluid supply device

A solder supply device provided with a solder cup housing liquid solder that is tubular and open at one end; a nozzle section, for ejecting solder from the solder container, that is inserted into the solder container; a flange section that is provided on an outer circumferential section of the nozzle section and that is engaged inside of the solder cup; and an outer tube that demarcates an air chamber with the bottom surface of the solder cup. Solder is supplied from the tip of the nozzle section by the solder cup and the flange section being relatively moved by supplying air to the air chamber. Solder is supplied from the solder container without using an air cylinder, electromagnetic motor, or the like.

Solder supply device including a nozzle with a piston and a demarcating member that demarcates an air chamber in which air is supplied to move the piston relative to a solder container

Solder supply device includes solder cup that is tubular and open at one end, nozzle section for ejecting solder from the solder cup, flange section that is fixedly provided on an outer circumferential section of the nozzle section and that is engaged inside of the solder cup, and inner tube an end of which holds the nozzle section and the other end of which extends from the opening of the solder cup; the flange section is formed from material that is elastically deformable and the flange section is engaged inside the cup with an outer edge section of the flange section in an elastically deformed state. The elastic force arising between the outer edge section of the flange section and the solder cup is smaller than the holding force of the nozzle section by the inner tube.

Solder supply device including a solder cup and a nozzle section with a flange section that is elastically deformable

A screen printer in which a photoelectric sensor and squeegees are fixed to a slider, when outward movement printing in which solder on a screen is rolled by an outward movement of the right squeegee is completed, the right squeegee is separated from a state of contacting a right end of a solder roll and a squeegee position pl at that time is input, and, subsequently, the slider is returned until the photoelectric sensor detects a left end of the solder roll and a squeegee position p2 at this time is input. An amount (a solder roll width) of solder remaining on the screen is calculated by subtracting a movement amount from the squeegee position p1 to the squeegee position p2 from a distance from the right squeegee to an optical axis position of the photoelectric sensor on the screen.

Growing community of inventors

Yokkaichi, Japan

Shoji Fukakusa