Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Nishihara Environmental Sanitation Research Corporation

Takeshi Nishiguchi

Mikio Yasuda

Shigetoshi Negishi

Manabu Morita

Kunio Tanaka

Takatoshi Mitsushima

Manabu Morioka

Takashi Nakanishi

Takayuki Fujita

Takashi Munezane

Akifumi Wada

Noboru Furuta

Kenji Kato

Takayoshi Kado

Isamu Chimoto

Takaharu Fuji

A bulk component feeder includes a conveying channelthrough which the electronic components P are conveyed, a ventilation channelthat is formed along the conveying channel, and a partitionby which postures of the electronic components P conveyed through the conveying channelare maintained and by which the conveying channelis separated from the ventilation channel. The conveying channelcommunicates with the ventilation channelthrough an upper partof the partition. It is possible to increase a size of an air channel A which acts as a flow channel for airflow and through which the electronic components P are conveyed with no respect to sizes of the electronic components P, thus, a desirable conveying speed is assured even though the conveyed electronic components P are micro-components.

Bulk component feeder

A compact and high-speed automatic electronic parts mounting apparatus is provided which includes first and second parts feeders, first and second mounting heads, a printed board-holding table, and a controller. Each of the first and second parts feeders includes a plurality of cassettes storing therein electronic parts and having pick-up stations. The second parts feeder is arranged at a preselected interval away from the first parts feeder in a first direction. Each of the first and second mounting heads is movable in the first direction and includes a plurality of pick-up nozzles movable in a vertical direction for picking up the electronic parts from the pick-up stations of the cassettes. The printed board-holding table is disposed within the preselected interval between the first and second parts feeders so as to move in a second direction perpendicular to the first direction. The controller controls the movement of the table and the first and second mounting heads so that the first and second mounting heads pick up the electronic parts from the cassettes of the first and second parts feeders, respectively, and mount them on a printed board held on the table in sequential mounting operations.

High speed electronic parts mounting apparatus having mounting heads which alternately mount components on a printed circuit board

A parts feeder is provided which may be employed in feeding electronic parts such as chip components to a mounting device for mounting them on a printed circuit board, for example. The parts feeder is designed to lift up parts supplied from an inlet to a parts orientation chamber to an outlet along an inner peripheral surface of the parts orientation chamber using a magnetic mechanism. A parts orienting path is defined upstream of the outlet which allows only the parts oriented in given directions to pass therethrough. A guide member is disposed within the parts orientation chamber to guide the parts, which are unoriented in alignment with a parts transport path connecting the outlet and a parts pickup station and which are dropped from the outlet, to an inlet for facilitating transportation of the parts by the magnetic mechanism to the parts orienting path, thereby avoiding jamming of the parts in the parts orienting path.

Parts feeder

A parts alignment device includes: an input port introducing chip-like parts having a magnetic-substance electrode; a storage chamber storing the parts introduced through the input port; a wall made of non-magnetic material, the wall defining a back surface of the storage chamber; an arc-like guide made of non-magnetic material and provided at least above the storage chamber; an intake port provided in connection with the guide and taking in only parts aligned in a predetermined direction from the parts; a parts passageway connected to the intake port and provided toward downstream of the intake port; a rotary plate made of non-magnetic material and provided at the rear of the wall so as to rotate in a parts taking-in direction of the intake port; and a magnet provided on the rotary plate. The magnet attracts the parts both in a direction of the guide and in a direction of the wall simultaneously by a magnetic force thereof.

Parts alignment device

Chip-type electronic part storage casing and supply cassette using same

A waste water treatment process wherein an iron contactor or iron contact are immersed in a treatment tank, into which waste water flows. In the treatment tank sulfate reducing bacteria are made to coexist with activated sludge or biofilters, wherein a velocity of flow of agitating stream on the outer surfaces of said iron contactor or contactors is set at 10 to 20 cm/sec, under an aerobic treatment. Iron ions are made to elute from said iron contactor or contactors by utilizing electrochemical iron corrosion through the agency of oxygen concentration cells on the outer surfaces of said iron contactor or contactors on conditions that dissolved oxygen concentration in the treatment tank is 1 to 3.2 mg/l and the oxidation-reduction potential is -200 to -400 millivolts (mV). Under an anaerobic treatment, iron ions are made to elute by utilziing microorganism-corrosion on the outer surfaces of said iron contactor or contactors on condition that dissolved oxygen concentration in the treatment tank is 0 mg/l. Under the aerobic or anaerobic conditions, the iron ions eluting from the outer surfaces of said iron contactor or contactors are combined with ions of phosphoric acid in the waste water to thereby remove phosphorus in the waste water as insoluble salt of iron phosphate.

Waste water treating process

Growing community of inventors

Kyoto, Japan

Takeshi Nishiguchi