Abstract: A chip carrying type chip filtration and discharge device for separating chips from a cutting lubricant including the chips produced by metal cuttings such as cutting and grinding. The device comprises an apron type conveyor inversed on a conveyor tail part side and a chip carry-out part side and rotatingly running and a filtration drum disposed on the inside of the apron type conveyor. The device is characterized in that a bucket is installed on the inside of the apron type conveyor and, after the chips accumulated at a conveyor tail part is collected by the rotation of the conveyor, the chips are discharged to the outside of the conveyor, and an opening part for flowing out the cutting lubricant after being filtrated by a filtration filter is formed in the filtration drum.

Abstract: A filtration apparatus, used for obtaining cutting oils cleaned by using filtration apparatus so as to reuse the separated cutting oil in machining operations, includes an oil tank for storing filtered cutting oil, a storage tank for temporarily storing the filtration target cutting oil, a rotatably driven filtration drum, rotatably supported in the storage tank and having a side-surface in order to let a filtered oil to flow into the liquid tank, a dynamic seal member provided between the filtration drum and side wall of the storage tank, an injecting means for washing filters and dip-up plates for continuously conveying cutting downward from a charge port to discharge port.

Abstract: A fractional filtration apparatus, used for obtaining cutting oils fractionally cleaned by using one filtration apparatus so as to reuse the separated cutting oils in accordance with the types of machining operations, includes a plurality of liquid tanks for fractionally storing the cleaned cutting oils, a filtration target cutting oil storage tank for temporarily storing a filtration target cutting oil charged through a charge port, rotatably driven filtration drums, dividing the liquid level of the cutting oil and being pivotal in the filtration target cutting oil storage tank, each drum having a side-surface opening in at least one surface thereof in order to let a filtered cleaned cutting oil flow into the cutting oil tanks, and each drum being provided with filters of different mesh sizes, injection nozzles for reversely washing the filters provided on the outer circumferential surfaces of the filtration drums, and dip-up members, disposed at a predetermined intervals, for continuously conveying the cutt

Abstract: A filtering apparatus for filtering cutting oil containing metal chips so that the filtered cutting oil can be recycled includes a reservoir, a filtering drum journalled within the reservoir and having a filtering screen support and a filtering screen extending about the periphery of the drum and secured to the drum by the filtering screen support, a chip discharge device including a belt entrained around guide rollers for carrying separated metal chips out of the reservoir, a discharged chip receiving bin disposed outside the reservoir adjacent to the discharge end of the chip discharge device and a filtered oil receiving bin disposed outside of the reservoir adjacent to a filtered oil discharge area of the reservoir. The drum is rotated by a motor located atop the reservoir and connected to the drum. An air spray device extends within the drum for spraying air at the filtering screen to dislodge any metal chips clinging to the screen.

Abstract: A filtering apparatus filters cutting oil containing metal chips so that the filtered cutting oil can be recycled. The filtering apparatus includes a reservoir, a filtering drum journalled within the reservoir and having a filtering screen extending about the periphery of the drum, chip discharge device for carrying separated metal chips of the reservoir, a discharged chip receiving bin disposed outside of the reservoir adjacent to the discharge end of the chip discharge device and a filtered oil receiving bin disposed outside of the reservoir adjacent to a filtered oil discharge area of the reservoir. A permanent magnet is disposed outside the reservoir so as to attract metal chips to the bottom of the reservoir from where the chips are discharged by the chip discharge device.

Abstract: A filtering apparatus for filtering chips out of chip-containing waste liquid which includes a cutting oil collection tank and a filtering drum rotatably mounted in the tank. A waste liquid supply means, and a chip transport conveyor are provided for supplying chip-containing waste liquid into the filtering drum and removing chips therefrom, respectively. The filtering drum also includes annular guide groove members and buckets slidably supported by the guide groove members for removing larger chips while allowing smaller chips and oil to pass therethrough. The buckets prevent the larger chips from damaging a surface of the filtering drum on which the smaller chips are collected.