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公开(公告)号：US11958072B2
公开(公告)日：2024-04-16
申请号：US16615658
申请日：2018-05-28
发明人： Kazumasa Ikushima
IPC分类号： B05C5/02 , B05D1/26 , B05D5/06 , G02F1/1335
CPC分类号： B05C5/0212 , B05D1/26 , B05D5/06 , G02F1/133512
摘要： 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.
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公开(公告)号：US20230241630A1
公开(公告)日：2023-08-03
申请号：US18011901
申请日：2021-06-16
发明人： Kazumasa Ikushima
IPC分类号： B05B1/08
CPC分类号： B05B1/083
摘要： 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.
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公开(公告)号：US11536259B2
公开(公告)日：2022-12-27
申请号：US16070367
申请日：2017-01-11
发明人： Kazumasa Ikushima
摘要： 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.
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公开(公告)号：US20220305512A1
公开(公告)日：2022-09-29
申请号：US17840760
申请日：2022-06-15
发明人： Kazumasa Ikushima
摘要： 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.
Solution: The liquid material application apparatus includes a discharge head, a robot moving the discharge head relative to a workpiece, a movement control unit controlling relative movement of the discharge head and the workpiece, and a discharge control unit controlling an operation of discharging a liquid material from a discharge head, wherein the discharge control unit executes, in a switchable manner in accordance with an application program, first mode discharge control of changing a discharge amount of the liquid material, which is discharged from the discharge head per unit time, depending on a relative moving speed between the discharge head and the workpiece, and second mode discharge control of operating the discharge head to discharge the liquid material in a predetermined discharge amount per unit time regardless of the relative moving speed. The liquid material application method is implemented using the liquid material application apparatus.-
公开(公告)号：US11453076B2
公开(公告)日：2022-09-27
申请号：US16607922
申请日：2018-04-24
发明人： Kazumasa Ikushima
IPC分类号： H05K3/34 , B23K1/005 , G06F30/367
摘要： 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.
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公开(公告)号：US11338589B2
公开(公告)日：2022-05-24
申请号：US16954330
申请日：2018-12-17
发明人： Kazumasa Ikushima
摘要： [Problem] To provide a droplet ejection device and a droplet ejection method with which a liquid material can be continuously delivered to an ejection head when the liquid material is delivered between arbitrary tanks. [Solution] Provided are a droplet ejection device and a droplet ejection method using the droplet ejection device, the droplet ejection device comprising a droplet ejection head; a supply tank that is in communication with a first positive pressure source; a collection tank that is in communication with a first negative pressure source; a replenishment tank that is in communication with the supply tank and the collection tank; an opening/closing valve A that opens and closes a flow passage communicating between the supply tank and the replenishment tank; an opening/closing valve B that opens and closes a flow passage communicating between the collection tank and the replenishment tank; a switching valve that switches communication between the replenishment tank and a second positive pressure source and communication between the replenishment tank and a second negative pressure source; and a control device, wherein the control device has an ejection mode in which a liquid material is ejected from the droplet ejection head, a replenishment mode in which the liquid material is delivered from the replenishment tank to the supply tank while the liquid material is delivered from the supply tank to the collection tank, and a collection mode in which the liquid material is delivered from the collection tank to the replenishment tank while the liquid material is delivered from the supply tank to the collection tank.
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77.发明授权公开(公告)号：US11266957B2
公开(公告)日：2022-03-08
申请号：US16729886
申请日：2019-12-30
发明人： Kazumasa Ikushima
IPC分类号： B01F3/08 , B01J4/02 , B05C5/02 , B05C11/10 , B05D1/26 , B01F11/00 , B05C5/00 , B01F15/02 , B01F3/12 , B01F5/00 , B01F15/04
摘要： Problem: To supply a device and a method for accurately discharging a fixed amount of a liquid, the liquid containing solid particles, in a state that the solid particles are dispersed in the liquid material. Solution: A discharge device for a liquid material containing solid particles includes a first reservoir, a first air pressure supply pipe, a metering portion having a metering hole, a plunger moving back and forth in the metering hole, a nozzle, a switching valve having a first position and a second position, a plunger driver, and a switching valve driver. The discharge device further includes a second reservoir, a second air pressure supply pipe, a branch portion provided in an upper portion of the metering hole and having a branch flow path, and an opening/closing mechanism that establishes or cuts off communication between the second reservoir and the metering hole. In the discharge device, the liquid material inside the first reservoir can be transferred to the second reservoir, and the liquid material inside the second reservoir can be transferred to the first reservoir. A discharge method is carried out using the discharge device.
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78.发明授权公开(公告)号：US10799906B2
公开(公告)日：2020-10-13
申请号：US15746108
申请日：2016-07-21
发明人： Kazumasa Ikushima
摘要： A device and a method of discharging a liquid in a state of solid particles being dispersed in the liquid with a minimum additional structure for dispersing the solid particles. A discharge device and an application device each include a storage container; a measuring unit having a measuring hole; a plunger disposed in the measuring hole; a nozzle; a selector valve having a first position at which the storage container and the measuring unit are communicated, and a second position at which the measuring unit and the nozzle are communicated; a plunger drive device; a selector valve drive device; and a discharge control device, wherein a discharge control program includes a filling stepinto the measuring hole; an ejection step; an inflow step causing the liquid material in the measuring hole to flow into the storage container; a discharge step; and a stirring step.
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公开(公告)号：US10786827B2
公开(公告)日：2020-09-29
申请号：US16066834
申请日：2017-05-25
发明人： Kazumasa Ikushima
摘要： A liquid material is discharged in a constant amount per unit time regardless of a relative moving speed. The liquid material application apparatus includes a discharge head, a robot moving the discharge head relative to a workpiece, a movement control unit controlling relative movement of the discharge head and the workpiece, and a discharge control unit controlling an operation of discharging a liquid material from a discharge head, wherein the discharge control unit executes, in a switchable manner in accordance with an application program, first mode discharge control of changing a discharge amount of the liquid material, which is discharged from the discharge head per unit time, depending on a relative moving speed between the discharge head and the workpiece, and second mode discharge control of operating the discharge head to discharge the liquid material in a predetermined discharge amount per unit time regardless of the relative moving speed.
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公开(公告)号：US10569555B2
公开(公告)日：2020-02-25
申请号：US15027125
申请日：2014-10-03
发明人： Kazumasa Ikushima
摘要： A liquid material filling device and method are provided which are intended to prevent air bubbles from remaining along an entire length of a flow passage extending from a liquid material reservoir (51) to a discharge port (53). The liquid material filling device includes a chamber (10) of an airtight structure, a pressure regulator (70) for regulating pressure in the chamber (10), and a control device (100). The liquid material is filled as follows. A negative pressure supply source (71) is communicated with a chamber communication pipe (90) and with a discharge device communication pipe (91) to reduce the pressure in the chamber (10) and pressure in an upper space of the reservoir (51) to a vacuum or a low pressure level close to a vacuum, and a resulted low-pressure state is maintained for a certain time to expel out air bubbles in the liquid material.
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