JP3147137U - Rotary filtration drum - Google Patents

Abstract

Provided is a rotary filtration drum that allows a filtered cutting oil having the same filtration accuracy to flow out as if a secondary filtration means was provided without providing a secondary filtration means.
A disk that is arranged on one side of a rotary filtration drum is provided with a filter installation frame mounting window at a desired interval along the circumference, and the window is arranged around the trunk of the rotary filtration drum. The disk to which the filter tension frame with a finer mesh than the mesh of the installed filter is stretched is attached, and the other disk placed on the opposite side is concentric with the center of the disk placed on one side A disk having a circular ring that functions as a rotating shaft and functions as a filtered cutting oil outlet is formed, and a body is formed by supporting both disks with support rods, and a desired mesh is formed on the body. These filters are arranged in a wound state to form a rotary filtration drum, and the rotary filtration drum is rotatably supported by a filtration tank so as to rotate by receiving a driving force transmitted from a driving source.
[Selection] Figure 2

Description

  The present invention is arranged with an inlet for feeding cutting oil mixed with various kinds of metal cutting scraps (hereinafter referred to as “used cutting oil”) called “swarf” discharged from a factory that cuts metal. Extending into a rising inclined plate, its tip is a chip discharge part of the chip separated from the used cutting oil, and mixed in the used cutting oil between the other of the bottom plate and the chip discharge part Endless scraper conveyor as equipment for scraping chips that have been deposited on the bottom plate and transporting the chips to the chip discharge section, or used cutting oil from the used cutting oil A hinge conveyor and apron conveyor for receiving the swarf mixed therein and conveying the swarf to the swarf discharging part are rotatably disposed in a filtration tank of a filtration device that is pivotably suspended. As the used cutting oil filtration equipment It is devised on the rotating filtration drum.

  Examples of apparatuses for filtering used cutting oil discharged from a factory for cutting metal include Japanese Patent Publication No. 204427, Japanese Patent Publication No. 41509, Japanese Patent Publication No. 2929442, There is a type disclosed in Japanese Patent No. 13769. The outline of the filter device of the type disclosed in the above publication is as described in the section of the technical field.

As is clear from the description of the illustrated embodiment of the above-mentioned literature, the rotary filtration drum disposed in the filtration tank of the conventional filtration device is provided with a disk attached around the rotation shaft on one side, and the circle On the opposite side of the plate, a disc having a circular ring that functions as a rotating shaft that is concentric with the center of the disc and that functions as a filtered cutting oil outlet is disposed, A body that supports both discs with a support rod is formed, and a rotary filter drum is provided with a filter of a desired mesh wound around the body. The rotary filter drum receives a driving force from a drive source. The filter tank is rotatably supported so as to rotate.
By the way, the above-mentioned filter is such that the finer the mesh is, the smaller the chips are separated from the used cutting oil, and the used cutting oil is allowed to flow into the rotary filtration drum as a filtered cutting oil with high filtration accuracy. This filtered cutting oil should be able to flow out of the filtration tank from the circular ring which is also the rotary shaft of the rotary filtration drum and also the filtered cutting oil outlet, but if the mesh is fine, the used cutting oil Since it becomes difficult to pass through the filter, there was a limit to the fineness of the mesh.

Therefore, in reality, the filtered cutting oil that flows into the rotary filtration drum after separating the chips flows in a state in which even unfavorable size chips are mixed, which is also the rotary shaft of the rotary filtration drum, It was supposed to flow out of the filtration tank from the circular ring which is also the filtered cutting oil outlet. Therefore, in order to remove undesired sized chips from the above-described filtered cutting oil, a secondary filtering means has to be taken.
Japanese Patent Publication No. 204427 Japanese Patent Publication No.41509 No.41509 Japanese Patent Laid-Open No. 294142 No. 13769, No. 7

  The present invention eliminates the inconveniences of the conventional rotary filtration drum, and the rotary filtration drum flows out the filtered cutting oil having the same filtration accuracy as the secondary filtration means without providing the secondary filtration means. Is to provide.

The present invention has the following configuration in order to eliminate the inconvenience of the filtration function of the rotary filtration drum disposed in the filtration tank of the conventional filtration apparatus. The configuration is such that a disk disposed on one side of the rotary filtration drum is provided with a filter tension frame mounting window at a desired interval along the circumference, and is arranged around the circumference of the rotary filtration drum. The disk to which the filter tension frame with a finer mesh than the mesh of the installed filter is stretched is attached, and the other disk placed on the opposite side is concentric with the center of the disk placed on one side as before A disc having a circular ring that functions as a rotating shaft and that functions as a filtered cutting oil outlet is formed, and a fuselage in which both discs are supported by a support rod is formed on the fuselage. The mesh filter was arranged in a wound state to form a rotary filtration drum, and the rotary filtration drum was rotatably supported on the filtration tank so as to rotate by receiving the driving force transmitted from the drive source.

According to the rotary filtration drum according to the present invention configured as described above, the used cutting oil charged into the filtration tank of the filtration device rotates in response to transmission of the driving force from the drive source in the filtration tank. A filter stretched around the body of the filter drum separates a certain amount of swarf into the rotary filter drum and flows as a filtered cutting oil mixed with a relatively small swarf. This filtered cutting oil is recovered as it flows out of the circular ring, which is also the rotating shaft of the rotary filtration drum and is also the filtered cutting oil outlet, and the filter tension provided on the rotary filtration drum. Relatively small chips are further separated from the filter stretched on the filter stretch frame attached to the frame mounting window, and are filtered out as a filtered cutting oil with high filtration accuracy. Divided.

  The rotary filtration drum according to the present invention is a used cutting machine that is disposed in a filtration tank of a filtration device that filters used cutting oil discharged from a factory that performs metal cutting, and is put into the filtration tank. It is equipment that separates the chips mixed in the oil from the used cutting oil to make the cutting oil. The configuration will be described with reference to the drawings.

  As shown in the background art section, there are various types of structural types of filter tanks of the filtration apparatus in which the rotary filtration drum according to the present invention is disposed. An example of the type disclosed in Japanese Utility Model Publication No. 41509 will be described with reference to FIG. A filtration tank 1 of the filtration apparatus shown in FIG. 1 has an inlet 2 for introducing used cutting oil, a rising inclined plate 4 extending one end of a bottom plate 3, and a tip thereof as a chip discharging unit 5. Is done.

In the filtration tank 1, sprockets 6 and 7 are arranged on the other side of the bottom plate 3 and the chip discharge part, and the endless scraper conveyor 8 is rotatably suspended across the sprocket and rotated with it. The filter drum 10 is provided.

  One of the sprockets 6 and 7 that suspends the endless scraper conveyor 8 so as to be rotatable is configured to rotate by receiving a driving force transmitted from a driving source (not shown).

As for the used cutting oil thrown in the filtration tank 1 of the above-described structure, the mixed chips are deposited on the bottom plate 3 by its own weight.
The chips are transported to the chip discharge section 5 while being scraped up by the scraper 8A of the endless scraper conveyor 8 that is pivotably suspended in the filtration tank, and discharged from the chip discharge section 5 to the outside of the filtration tank 1. The

Various driving force transmission means for the rotary filtration drum 10 can be considered. As an example, the endless belt of the endless scraper 8 is a chain, and the disk of the rotary filtration drum 10 is a gear-type disk. As described in the embodiment, the rotary filtration drum 10 of the present invention may receive the rotational force of the endless scraper conveyor 8 that is pivotably suspended in the filtration tank 1 by meshing with a gear-type disk. Of course.

  The present invention has been developed to eliminate the disadvantages of the filtration function of the rotary filtration drum disposed in the filtration tank of the conventional type of filtration device described in the illustrated embodiment of the above-mentioned literature. .

The components of the rotary filtration drum 10 of the present invention are shown in FIG.
One disk (a gear-shaped disk that rotates in mesh with a chain that is an endless belt of an endless scraper conveyor) has a filtered cutting oil outflow function and also functions as a rotating shaft. The circular rotating shaft 12 is concentrically fixed to the circular rotating shaft-equipped disc 11, and the other disc (a gear-shaped disc that rotates in mesh with a chain that is an endless belt of an endless scraper conveyor) A rotating shaft through hole 13 concentric with the rotating shaft disc 11 is provided, and a filter extending frame mounting window 14 is provided with a desired interval along the circumference of the filter extending frame mounting window 14. The discs 11 and 15 are configured as a body by fixing the supporting rod 10A as a body bone.
The body is stretched in a state where the filter 17A is wound around the outer periphery, and the filter mesh stretched in a state where the filter is stretched around the outer periphery of the body around the filter stretching frame mounting window 14 on the disk 15 with the filter stretching frame mounting window. The filter drum 17 is provided with a filter frame 16 on which a finer mesh filter 16A is stretched.

A rotary shaft through hole 18 concentric with both the disks 11 and 15 is provided on the outside of the disk 15 with a filter extending frame mounting window on which the filter drum 17 is formed, and the filtered cutting oil flows out along the circumference. A hole 19 is provided, a window 20 is provided to look into the filter tensioning frame mounting window, and a holding mechanism 21 is formed around the circumference to rotatably hold the circumference of the disk 15 with the filter tensioning frame mounting window. An outer disk 22 is provided. A liquid leakage prevention material (not shown) is interposed in the holding mechanism 21 of the outer disc 22 so that the circumference of the disc 15 with the filter extending frame mounting window 15 can be freely rotated as shown in FIG. Arrange.

The rotating shaft through hole 18 of the outer disk 22 passes through the rotating shaft 23 that passes through the rotating shaft through hole 13 of the filter tensioning frame mounting window disk 15 that constitutes the filtration drum 17. This is referred to as a rotary filtration drum 10.

One side plate 1A of the filtration tank 1 is provided with a rotary bearing 1B that pivotally supports an annular rotary shaft 12 of a disc 11 with an annular rotary shaft, and the rotary bearing 1B has an annular rotary shaft of a rotary filter drum 10 as in the past. An annular rotating shaft 12 of the disk 11 is rotatably supported. The other side plate 1 </ b> C of the filtration tank 1 is provided with a filtered cutting oil outlet 1 </ b> D unique to the present invention, and a filter tensioning frame mounting window provided on the outer plate 22 that is a constituent material of the filtration drum 17 of the rotary filtration drum 10. A through hole 1E is provided at a corresponding portion of the window 20 through which the filtered cutting oil outlet 1D and the filtered cutting oil outlet hole 19 of the outer circular plate 22 are connected by a connecting cylinder or a desired means, and the outer circle is connected. The plate 22 is fixed to the other side plate 1 </ b> C of the filtration tank 1, and the through hole 1 </ b> E is aligned with the peep hole 20.

The means for rotating the filter drum 17 of the rotary filter drum 10 having the above-described configuration is such that the filter drum 7 of the rotary filter drum 10 is rotated by the endless scraper conveyor 8 as shown in FIGS. The structure arrange | positioned in a filtration tank so that it might receive and rotate might be illustrated.
That is, in the illustrated embodiment, the rotational force of the endless belt of the endless scraper conveyor 8 that is rotatably suspended in the filtration tank 1 with respect to the means for rotating the filter drum 17 of the rotary filter drum 10 of the present invention is the rotary filter drum. It is illustrated as a configuration in which the disks 11 and 15 constituting the ten filtration drums 17 are received and rotated.

FIGS. 3 and 4 show a state in which the rotary filtration drum 10 is immersed in the used cutting oil so as to freely rotate in the filtration tank 1 into which the used cutting oil has been charged.
An annular rotary shaft 12 of a disc 11 with an annular rotary shaft constituting the filter drum 17 of the rotary filter drum 10, and a rotary bearing 1B provided on one side plate 1A of the filtration tank 1 supporting the annular rotary shaft 12, A filter frame mounting window 14 formed on a disk 15 with a filter extending frame mounting window constituting the filtering drum 17 of the filtering drum 10, and an outer disk disposed outside the disk 15 with the filter extending frame mounting window. The filtered cutting oil in the rotary filter drum 10 is recovered adjacent to the filtration tank 1 from the filtered cutting oil outlet hole 19 formed in the filter 21 and the filtered cutting oil outlet 1D provided in the other side plate 1C of the filtration tank. It is rotated in a state where it is immersed to the extent that it causes a drop in the ridge 41 and flows out.

At this time, the used cutting oil charged into the filtration tank 1 flows into the filter drum 17 of the rotary filter drum 10 through the filter 17A disposed on the outer periphery of the filter drum 17 of the rotary filter drum 10. However, the chips mixed in the used cutting oil are prevented from passing by the above-described filter 17A. Accordingly, it passes through the filter 17A and flows into the filtration drum 17 of the rotary filtration drum 10 as filtered cutting oil mixed with small chips from which the above-mentioned chips are excluded.

  However, the filtered cutting oil flows as filtered cutting oil mixed with fine chips that have passed through the filter without being excluded by the filter 17A.

  Further, the filtered cutting oil that has flowed into the filtration drum 17 of the rotary filtration drum 10 is filtered by a filter tensioning frame-attached disk 15 that forms the filtration drum 17 of the rotary filtration drum 10. As a filtered cutting oil having a high filtering accuracy excluding fine chips mixed in the filtered cutting oil by the filter 16A extended from the frame window 14 to the filter extending frame 16 disposed in the window. A drop is generated in another collection tank 51 provided adjacent to the filtration tank 1 and is collected by flowing out.

  A filter 17A stretched on the outer periphery of the filtration drum 17 constituting the rotary filtration drum 10, and a filter tension frame attachment formed on one filter tension frame attachment window disk of the filtration drum 1715 constituting the rotary filtration drum 10. 3 and 4 show nozzles 31 and 32 for ejecting liquid or air for removing chips adhering to the filter 16A stretched on the filter stretch frame 16 disposed in the window 14 from the filter. Arranged as shown.

The used cutting oil mixed with large and small chips put into the filtration tank is stretched around the circumference of 17 bodies of the filtration drum of the rotary filtration drum 10 disposed in the filtration tank 1. When passing through the filter 17A and flowing into the rotary filter drum 10, the chips mixed in the used cutting oil are blocked from passing by the filter. In other words, the chips mixed in the used cutting oil are separated from the used cutting oil by the filter 17A and adhere to the surface of the filter 17A. If the chips are not removed from the filter surface, the filtering ability of the filter will be hindered.

  In order to remove the chips adhering to the surface of the filter 17A, a nozzle 31 for injecting the filtered cutting oil or air from the filtered cutting oil outlet and the circular ring which is also the rotating shaft toward the inside or the outside is inserted. It arranges with. Filtered cutting oil or air sprayed from this nozzle is a filter stretched in a wound state around the filter drum of the rotary filter drum, and a filter tension frame 16 disposed in the filter tension frame mounting window 15 of the rotary filter drum. The filter 16A stretched on the filter 16 is removed by the above-described filtered cutting oil or air to remove the chips adhering to the filter, thereby maintaining the filter function of the filter.

In order to increase the filtration accuracy of the filtered cutting oil separated from the used cutting oil and flowing into the rotary filtration drum, the present invention is designed to remove fine chips mixed in the filtered cutting oil. A finer mesh than the filter 17A disposed in a state of being wound around the circumference of the body of the rotary filtration drum around a window formed on the disk 15 with the filter tension frame mounting window, which is a constituent material of the filtration drum 17 of the rotary filtration drum A filter 16A is stretched, and this filter separates fine chips mixed in the filtered cutting oil that has flowed into the rotary filtration drum, and is disposed on the disk window as filtered cutting oil with high filtering accuracy. It flows out through the provided filter 16A.

In this filter, the filtered cutting oil that has flowed into the rotary filtration drum is filtered as a filtered cutting oil with improved filtration accuracy, and is attached to the filter extension frame attached to the window of the filter extension frame attachment window disk of the rotary filtration drum. When flowing out of the filtration drum through the installed filter, fine chips mixed in the filtered cutting oil adhere to the filter.
If this is left as it is, the filtration function of the filter will be hindered, so it is necessary to take measures to remove the chips adhering to the filter. The means is provided with a nozzle 32 for injecting filtered cutting oil or air from the outside of the rotary filtration drum to the inside of the rotary filtration drum through a through hole 1E provided in the other side plate 1C of the filtration tank. Alternatively, the nozzle is disposed from the inside of the rotary filtration drum.

  The cutting chips adhering to the filter are removed by jetting filtered cutting oil or air from the nozzle, and the filtering ability of the filter is maintained.

  By setting the rotary filtration drum as described above, a filtered cutting oil with high filtration accuracy can also be obtained.

It is the cross-sectional schematic of the filtration apparatus which arrange | positions the rotary filtration drum of this invention. It is a disassembled perspective view of the structural material of the rotary filtration drum of this invention. It is the sectional view on the AA line of FIG. FIG. 2 is a partially cutaway cross-sectional enlarged view of FIG. 1.

Explanation of symbols

1B Rotating Bearing 10 Rotating Filtration Drum 11 Annular Rotating Shaft Disc 12 Annular Rotating Shaft 12
13 Rotating shaft through hole 14 Filter extending frame mounting window 15 Disc 16 with filter extending frame mounting window Filter frame 17 Filtration drum 18 Rotating shaft through hole 19 Filtered cutting oil outflow hole 20 Viewing window 23 Rotating shaft

Claims (1)

A rotary filtration drum that rotates in response to power transmission disposed in a filtration tank of a device for filtering used cutting oil,
One disk is a circular cylinder with an annular cylinder fixed concentrically with an annular cylinder having a filtered cutting oil outflow function and also functioning as a rotating shaft, and the other disk is attached with the annular cylinder. A rotation shaft through hole concentric with the disc is provided, and the filter extension frame attachment window is provided with a desired interval along the circumference of the disc. The body is fixed and stretched in a state where the filter is wound around the outer periphery of the body, and the filter tension frame mounting window of the disk with the filter tension frame mounting window is fitted with a filter mesh stretched on the body. On the outside of the disk with a filter tension frame mounting window formed as a filtration drum with a filter frame with a fine mesh filter stretched, a rotating shaft through hole concentric with both the disks is provided, and the circumference A filtered cutting oil outflow hole is provided along A window for looking through the filter tensioning frame mounting window is provided, and an outer disk formed by a holding mechanism that rotatably holds the circumference of the disk with the filter tensioning frame mounting window is provided on the outer circumference. Insert the liquid leakage prevention material into the disk holding mechanism and fit the circumference of the disk with the filter installation frame mounting window,
In the rotation shaft through hole of the outer disk, the rotation shaft passes through the rotation shaft through hole of the disk with the filter extending frame mounting window constituting the filtration drum,
One side plate of the filtration tank is provided with a rotary bearing, and the rotary bearing is rotatably supported by an annular cylinder of a disk with an annular cylinder of a rotary filtration drum, and the other side plate of the filtration tank is filtered. A window for looking through the cutting oil outlet and the filter extension mounting window is provided, the filtered cutting oil outlet and the filtered cutting oil outlet hole of the outer disk are connected, and the outer disk is fixed to the other side plate of the filtration tank. A rotary filtration drum, characterized in that

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