Abstract: A discharge device includes a nozzle (50) having a plurality of discharge ports, a liquid chamber (26) communicating with the plurality of discharge ports via a plurality of discharge flow paths, and a plunger rod (18) that reciprocates in the liquid chamber and is narrower than the liquid chamber. The plurality of discharge ports (62) is arranged un a straight nozzle arrangement line, and arranged with such a distance therebetween that globs of a liquid material having landed on an application target join together to form an application line. A plurality of liquid globs having been discharged from the plurality of discharge ports (62) have no contact with each other before landing on the application target, and letting the globs of the liquid material having landed join together on the application target.

Abstract: Problem: To provide a liquid-material discharge device that enables easier correction of a changed discharge amount during discharge operation than conventional techniques. Solution: A liquid-material discharge device according to the present invention, which includes a discharging member having a rod-shaped body, a liquid chamber wider than the discharging member, in which a tip portion of the discharging member is disposed, a discharge port communicating with the liquid chamber, a liquid feed path that makes the liquid chamber communicate with a liquid-material reservoir, and a driving device configured to drive the discharging member, includes a discharge amount adjustment member positioned at the liquid feed path, and a member position adjustment mechanism configured to shift a position of the discharge amount adjustment member within the liquid feed path, the discharge amount adjustment member being kept from interrupting communication between the liquid chamber and the liquid-material reservoir.

Abstract: Problem: To provide a fluid transfer device that can solve an issue of pulsation that occurs when a liquid material is discharged from a nozzle by eccentrically rotating a male-screw-shaped rotor within a stator having a female-screw-shaped insertion hole, an application device including the fluid transfer device, and an application method. Solution: A fluid transfer device 1 includes: an outer cylinder 10; a stator 11 that has a female-screw-shaped insertion hole 12 as a through-hole and is provided on an inner periphery of the outer cylinder; and a male-screw-shaped rotor 20 that is connected to a rotor driving part and eccentrically rotates in contact with an inner periphery of the stator.

Abstract: To provide a liquid material discharge device capable of adjusting relative alignment of a valve element with respect to a valve seat by mechanical means. A liquid material discharge device includes: a base member; a valve device mounted on the base member and including a valve element and a valve seat; and a valve driving device configured to move the valve element forward to and backward from the valve seat. The liquid material discharge device further includes an adjustment device 140 configured to adjust relative alignment of the valve element with respect to the valve seat, wherein the adjustment device includes a movable member 141 on which the valve driving device is disposed, and an inclination adjuster 146 configured to adjust an inclination of the movable member. A liquid material application device includes the liquid material discharge device.

Abstract: Problem: To provide a fluid transfer device that can solve an issue of pulsation that occurs when a liquid material is discharged from a nozzle by eccentrically rotating a male-screw-shaped rotor within a stator having a female-screw-shaped insertion hole, an application device including the fluid transfer device, and an application method. Solution: A fluid transfer device 1 includes: an outer cylinder 10; a stator 11 that has a female-screw-shaped insertion hole 12 as a through-hole and is provided on an inner periphery of the outer cylinder; and a male-screw-shaped rotor 20 that is connected to a rotor driving part and eccentrically rotates in contact with an inner periphery of the stator.

Abstract: A liquid material discharge device includes: a valve stem having a valve element provided at a tip portion, and a contact portion; a liquid chamber in which the valve element moves forward and backward; a nozzle communicating with the liquid chamber; a valve seat having a hole via which the liquid chamber and the nozzle communicate with each other; an arm that is in separable contact with the valve stem; and a valve driving device configured to move the valve element forward to and backward from the valve seat by causing the arm to pivot. The liquid material discharge device further includes a coupling device that couples the valve stem with the arm, wherein the coupling device includes a pressing portion that presses the contact portion against the arm.

Abstract: Problem: To provide a technology for forming a planar liquid film having less surface unevenness than ever before using a jet-type discharge device. Solution: Provided is a planar liquid film forming method of forming a planar liquid film on an application target using a jet-type discharge device having a plurality of discharge ports, and an apparatus for implementing the method. In the method, the plurality of discharge ports are arranged on a straight nozzle arrangement line 140, and are arranged with such a distance from one another that globs of a liquid material having landed on the application target can join together to form a linear liquid film.

Abstract: A liquid material ejection device in which a plunger is efficiently accelerated. The device includes a liquid chamber communicating with an ejection port and being supplied with a liquid material, a plunger including a tip portion having a smaller diameter than the liquid chamber and is moved in the liquid chamber, an elastic member urging the plunger upward, an arm disposed in a state extending in a substantially horizontal direction, an arm driver serving as a driving source to operate the arm, and a base member on which the arm driver is disposed. The device further includes a rocking mechanism unit connected to the arm driver and rockingly supporting the arm, the arm driver includes a plurality of actuators, the arm includes a pressing portion pressing the plunger downward, the plunger is pressed by the pressing portion, and the plunger is linearly reciprocated with rocking motion of the arm.

Abstract: A liquid material discharge device and method capable of suppressing generation of bubbles caused with a rod raising operation in a negative pressure environment. In a liquid material discharge device used in a negative pressure space and including a storage container; a compressed-gas supply source pressurizing the storage container; a nozzle having a discharge flow path; a reciprocating valve rod; an actuator driving the valve rod; a valve seat having a communication hole that is communicated with the discharge flow path; and a discharge control device controlling the actuator to open and close the communication hole by a tip of the valve rod, the discharge control device controls an acceleration time Au in rising of the valve rod by the actuator to be held within a range of 2 to 300 [ms], thus preventing generation of bubbles caused with the rising of the valve rod.

Abstract: Object: A liquid material application apparatus and a liquid material application method are provided with which a liquid material can be discharged in a predetermined discharge amount per unit time regardless of a relative moving speed in a series of application works.

Abstract: Problems: To provide a cable unit that can save space for a work space, and a liquid material supply device and an application device including the cable unit. Solution: A cable unit 30 that detachably and electrically connects a discharge head 10 configured to discharge a liquid material with a relative-moving robot 20 configured to carry out relative movement between the discharge head 10 and a workpiece 25, the cable unit having a dispense controller 33 configured to control a discharge operation of the discharge head 10, and a liquid material supply device and an application device including the cable unit.

Abstract: A laser soldering technique prevents generation of scorching of a substrate or heat-susceptible components in the surroundings, residues, etc. A method includes adjusting a height of the laser soldering device 1 to a position at which laser light has a preset irradiation diameter D1 larger than a diameter of a solder droplet S, irradiating the solder droplet S with the laser light to heat the solder droplet S to a temperature at which a flux solvent component volatilizes and a solder powder does not melt; adjusting the height of the laser soldering device to a position at which the laser light has a preset irradiation diameter D2 smaller than the diameter of the solder droplet S, and irradiating the solder droplet S with the laser light to heat the solder droplet S to a temperature at which the solder powder melts, and performing soldering.

Abstract: Application of liquid material is carried out without causing variations in discharge amount even on a stage under heating while temperature of a liquid material is adjusted by a temperature control device. A liquid material discharge device includes a discharge port, a liquid chamber in communication with the discharge port, and a temperature control device adjusting a temperature of the liquid chamber, the liquid material discharge device discharging the liquid material from the discharge port while a workpiece and the discharge port are moved relative to each other. The liquid material discharge device also includes a coolant flow path through which a coolant for heat exchange with the temperature control device flows, and a discharge control device controlling a discharge operation. An application device including the liquid material discharge device and an application method using the application device are also provided.

Abstract: A discharge device and method can eliminate the influence of pump pulsation while temperature reduction of liquid material is minimized. The discharge device includes a nozzle (19) having a discharge port (28) a valve seat (31) having a communication bore (30) communicating with the discharge port, a liquid chamber (33) extending vertically, a needle (4) for opening and closing the communication bore of the valve seat, and a circulation flow passage through which the liquid material is supplied to the liquid chamber. The device further includes a rod-shaped flow passage formation member (34) provided with an outer flow passage (36) having a top opening (40) formed at an upper end and a bottom opening (41) formed at a lower end, and with an inner flow passage (35) having a bottom opening (41) in communication with an outer flow passage and a top opening (38).

Abstract: A liquid discharge device to discharge a liquid material stirred near a metering chamber, an application device and an application method using the application device. A liquid discharge device includes a storage unit including a storage container storing a liquid material, and a stirrer drive mechanism; a discharge unit including a metering chamber to be filled with the liquid material, a plunger sliding in close contact with an inner peripheral surface of the metering chamber, a nozzle in communication with the metering chamber, and a switching valve between a first position at which the storage container and the metering chamber are communicated with each other, and a second position at which the metering chamber and the nozzle are communicated; and a connection flow path through which the storage container and the metering chamber are communicated, The stirrer drive mechanism is separable from the storage unit.

Abstract: Object: A liquid material application apparatus and a liquid material application method are provided with which a liquid material can be discharged in a predetermined discharge amount per unit time regardless of a relative moving speed in a series of application works.

Abstract: A seal structure that keeps a needle from sliding with respect to a seal and is easily detachable, and a device having the seal structure. A needle of a valve device is inserted through a seal. A valve device includes a fluid chamber having an outflow hole and au inflow hole, and the needle of which fore end reciprocates in the fluid chamber. The seal includes a main body made of an elastic body having a needle fitting insertion hole formed for the needle to be inserted and fit into. A flange portion is made of an elastic body annularly extending from the main body in a radial direction outward. One end opening diameter (D3) of the needle fitting insertion hole is smaller than the other end opening diameter (D2) of the needle fitting insertion hole.