JP2012143833A - Filtering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filtering device having an excellent filtering function and reducing an installation place as small as possible, in a filtering device having both a chip conveying member housing body and a rotary filtering drum housing body.SOLUTION: The structure of the rotary filtering drum housing body attached to the chip conveying member housing body is configured so that a flow-in side and a baffle plate are formed at the upper side of a plate extending to the side of the chip conveying member housing body of the rotary filtering drum housing body, and the flow-in side and the baffle plate are connected to the side wall of at least one side in the direction toward the chip conveying direction of the chip conveying member housing body.

Description

  The present invention relates to a filtration device that separates chips from used cutting oil mixed with chips discharged from a factory that performs metal cutting and collects the chips as treated cutting oil.

Used cutting oil mixed with chips is discharged from a factory that performs metal cutting. A filtration device is used to remove the chips from the used cutting oil and recover the processed cutting oil from which the chips are not mixed.

There are various types of structures for the filtration device, but the commonly used device type is the invention described in Japanese Patent Laid-Open No. 2003-145390 or Japanese Patent Laid-Open No. 7-204427. There is something like a filtration device. The main body of the filtration device forms a used cutting oil inlet on the upstream side of the main body, and the downstream side has a bottom plate as an inclined rising plate, and a tip of the inclined rising plate serves as a chip radiating portion, and the inlet Sprockets are installed on the upstream side where the tip of the inclined rising plate is formed and the downstream side where the tip of the inclined rising plate is used as the chip radiating part, and the cutting material mixed in the used cutting oil fed from the inlet through the sprocket. A scrap conveying conveyor for conveying powder or a chip conveying member consisting of a hinge conveyor is pivotably suspended, and the spent cutting oil introduced into the main body from the inlet by the chip conveying member by the conveyor The chips mixed in are conveyed to the chip releasing section, and the chips are discharged from the chip releasing section to the outside of the main body.
Then, the chips mixed in the used cutting oil remaining in the main body without being caught by the chip conveying member by the conveyor that is pivotally suspended on the main body are filtered on the body circumference in the main body. A rotary filtration drum arranged in a wound state is rotatably arranged, and the filter of the rotary filtration drum flows out of the main body as treated cutting oil that is obtained by capturing and removing chips from the used cutting oil. It is supposed to be configured.

Further, as in the filtration device of the invention described in JP-A-11-99308, a chip conveying member container accommodated in a scraper conveyor and a rotary filter drum container rotatably accommodated in a rotary filter drum are separated. There is also a configuration type filtration device that is configured and provided with this.

In the configuration type filtration device described in the above-mentioned Japanese Patent Application Laid-Open No. 2003-145390 or Japanese Patent Application Laid-Open No. 7-204427, the rotary filtration drum is disposed in the filtration tank, so the height of the filtration device is increased. In addition, the filter device of the type described in Japanese Patent Application Laid-Open No. 11-99308 has a disadvantage that the lateral width becomes large and the installation conditions are restricted.

JP 2003-145390 A Japanese Patent Laid-Open No. 7-204427 JP-A-11-99308

  In the present invention, the chips are separated from the used cutting oil mixed with the chips discharged from the metal processing factory, and the chips are separated from the chip conveying member container for releasing the chips out of the main body. In the type of filtration device with a rotary filtration drum container that collects as treated cutting oil, the height of the filtration device can be suppressed, the installation area can be increased, and the size of the used cutting oil can be reduced. It is an object of the present invention to provide a filtration apparatus that can efficiently separate chips and process cutting oil.

The filtration device of the present invention includes a chip conveyor member housing in which a hinge conveyor, a scraper conveyor, a screw conveyor, and the like that are operated in response to transmission of a driving force from a driving source are disposed as a chip discharging member, and a driving source. And a rotary filtration drum housing in which a rotary filtration drum attached in a state where the filter is wound around the circumference of the body that operates by receiving the driving force is provided.

The chip conveying member container has an inlet for used cutting oil mixed with chips discharged from a machine that performs metal cutting work on the upstream side, and the downstream side is a rising slope, and its tip is used. A chip radiating section that releases the chips separated from the used cutting oil, and inside the used cutting oil introduced from the upstream used cutting oil inlet, A chip conveying member such as a screw conveyor, a scraper conveyor, or a hinge conveyor that conveys toward the chip releasing section is provided.

The rotary filtration drum container attached to the chip conveying member container is located between the used cutting oil inlet provided upstream of the chip conveying member container and the rising part of the inclined rising plate provided downstream. At least one side wall is adjacent to a desired location, and the rotary filtration drum container is disposed on the inside of the rotary filtration drum container and the chip conveying member container having the shaft core described above. A rotary filtration drum container that accommodates a rotary filtration drum that is rotatably arranged in parallel with a chip conveyance direction by a chip conveyance member and that rotates in response to drive transmission from a drive source. The bottom plate is similar to the lower chord part of the rotary filtration drum and is used from one side wall of the chip conveying member container on one side of the upper side of the extension plate rising from both sides of the bottom plate. Inflow of cutting oil Formed as that the inflow edge and the other nearer to the structure obtained by forming a baffle to prevent the inflow of used cutting oil from said chip conveyance member container.
The rotary filtration drum container configured as described above has an inflow side formed on one side of the upper side of the extension plate connected to a desired location on one side wall of the chip conveying member container, and a baffle plate formed on the other side. Look side by side on the side wall of the chip conveying member container.

The rotary filtration drum accommodated rotatably in the rotary filtration drum housing of the present invention is configured to rotationally filter the chips mixed in the used cutting oil flowing out from the chip conveying member housing into the rotary filtration drum housing. A scraper that not only captures and removes it by a filter disposed in a wound state around the drum circumference, but also rotates in response to transmission of a driving force from a driving source to rotate the rotary filtration drum within the rotary filtration drum housing. It was set as the structure which can remove the chips which settled on the baseplate of the rotary filtration drum container also with the chain. The rotary filtration drum container is configured so that the processed cutting oil from which chips have been removed by the rotary filter drum that rotates within the rotary filter drum container can flow out.

  As described in the embodiment for carrying out the present invention, the filtering device of the present invention is provided with a chip conveying member container and a rotary filtering drum container so that the height of the filtering device can be reduced. By setting the rotary filtration drum container provided on at least one wall side of the conveying member container as the above-described filter device, the installation area of the filter device can be reduced. Further, by rotating the rotary filtration drum with a scraper chain in the rotary filtration drum housing, the chip separation efficiency in the rotary filtration drum housing is improved, and the chips separated in the rotary filtration drum housing are transferred to the chip conveying member. It returns to a container and can improve chip separation efficiency as a result.

Schematic diagram of a flat cross-sectional configuration of a filtration device in which a rotary filtration drum container is provided on one side wall of a chip discharge member container provided with a chip conveying member 1 is a schematic vertical sectional view of the filtration device shown in FIG. 1 is a schematic longitudinal sectional view on the upstream side of a rotary filtration drum container disposed in the filtration device shown in FIG. FIG. 1 is a partial enlarged vertical cross-sectional schematic diagram of an upstream side of a rotary filtration drum container disposed in the filtration device shown in FIG. 1 is a schematic longitudinal sectional view on the downstream side of a rotary filtration drum container disposed in the filtration device shown in FIG. Partial enlarged vertical cross-sectional schematic diagram of the downstream side of the rotary filtration drum container disposed in the filtration device shown in FIG.

  As shown in FIGS. 1 and 2, the filtration device of the present invention includes a chip conveying member housing 1 having a chip conveying member 2 provided therein, and an upstream side to a downstream side of the chip conveying member container 1. The rotary filtration drum 6 in which the shaft center is arranged in parallel to the conveying direction of the chips conveyed by the chip conveying member disposed in the chip conveying member container 1 at a desired location on at least one side wall in the direction directed to. Is configured to be provided with a rotary filtration drum housing 5 that is rotatably provided.

The chip conveying member container 1 is configured as the following structure. That is, a used cutting input unit 3 for supplying used cutting oil mixed with chips discharged from a factory that performs metal cutting is provided on the upstream side.
The downstream side is an inclined rising portion, the tip of the inclined rising portion is a chip radiating portion 4, and the spent cutting oil charging portion 3 side to the chip eroding portion 4 are charged from the used cutting oil charging port 3 It is set as the structure which arrange | positions the chip conveyance member 2 for conveying the chip mixed in used cutting oil.

  The chip conveying member 2 disposed in the chip conveying member container 1 may be a hinge conveyor as described in Japanese Patent Laid-Open No. 2003-145390, which is disclosed in Japanese Patent Laid-Open No. 7-204427. It may be a scraper conveyor as described, or may be a screw conveyor as described in JP-A-11-000848.

  In the device for transmitting the driving force and the driving force of the chip conveying member 2 disposed in the chip conveying member container 1 described above, each chip conveying member 2 is a hinge conveyor, a scraper conveyor, and a screw conveyor. Therefore, it is needless to reiterate that a driving source suitable for driving each chip conveying member and a device for transmitting the driving force are used as shown in the illustrated embodiments in the publications. .

  A rotary filtration drum housing 5 is provided at a desired location on at least one side wall in a direction from the upstream side to the downstream side of the chip conveying member housing body 1. The rotary filtration drum container 5 has a filter wound around the cylinder circumference, and the shaft is mixed into the used cutting oil by the chip conveying member 2 disposed in the chip conveying member container 1. A rotary filtration drum 6 is rotatably arranged in parallel with the powder conveying direction. The filter disposed in a wound state around the drum circumference of the rotary filtration drum 6 has the chips mixed in the used cutting oil flowing into the rotary filtration drum container 5 from the chip conveying member container 1. The body is prevented from entering the body, the chips are removed by this filter, and it flows into the body of the rotary filtration drum 6 as processed cutting oil. A rotary filtration drum 6 having a mechanism for flowing out from at least one of the sides is accommodated rotatably.

  The rotary shaft of the rotary filter drum 6 that is rotatably accommodated in the rotary filter drum housing 5 is, for example, a rotary rod at the center of a disk that closes the lateral opening of the rotary filter drum 6 on one side of the rotary filter drum 6. Or an opening for allowing the treated cutting oil flowing into the body of the rotary filter drum 6 to flow out of the rotary filter drum 6 to the outside of the drum. The configuration. For example, the mechanism is configured as an annular rotating shaft. Both sides may be annular rotating shafts. When the rotary shaft of the rotary filter drum 6 is an annular rotary shaft, the rotary bearing provided in the rotary filter drum housing 5 is naturally an annular rotary bearing.

  The rotary filtration drum container 5 provided at a desired location on one side wall of the chip conveying member container 1 is characterized by being configured as a structure illustrated in FIGS. 3, 4, 5, and 6. That is, the bottom plate 7 of the rotary filtration drum housing 5 is formed in an arc shape similar to the lower chord portion of the rotary filtration drum 6 that is rotatably housed in the rotary filtration drum housing 5. The bottom plate 7 is formed by extending side walls 8 and 9 which are rising extension plates extending above the arc-shaped bottom plate to accommodate the rotary filtration drum 6. In the side wall 8, which is an extension plate on one side of the rotary filtration drum container 5 provided on one side wall in the direction from the upstream side to the downstream side of the chip conveying member container 1, the chip is conveyed toward one side of the upper side thereof. In the rotary filtration drum container 5, the used cutting oil mixed with the chips conveyed from the upstream side to the downstream side of the chip conveying member container 1 by the chip conveying member 2 in the member container 1 overflows. An inflow side 10 that flows into the swarf is formed, and the used cutting oil mixed with chips flowing into the swarf conveying member housing 1 on the other side is prevented from flowing into the rotary filtration drum housing 5 more than necessary. That is, the baffle plate 11 is formed to protrude.

  In the rotary filtration drum housing 5 that rotatably accommodates the rotary filtration drum 6, at least one of the left and right side plates of the rotary filtration drum housing 5 is rotatably accommodated in the rotary filtration drum housing 5. When the rotating shaft attached to the center of at least one of the left and right side plates of the rotary filtration drum 6 is a rotating rod, a bearing that supports the rotating shaft that is the rotating rod is provided, and the bearing is used to support the rotating rod. When the rotation shaft of the rotary filter drum 6 is an annular shaft, the other side plate is provided with an annular bearing that supports the annular shaft, and the annular shaft is supported by the annular bearing. The rotary filtration drum 6 is formed so as to be rotatably supported in the rotary filtration drum housing 5 by the manner of this axial support. Needless to say, when the rotary shaft disposed on the rotary filtration drum 6 is a double-sided annular rotary shaft, the rotary bearing provided on the rotary filtration drum housing 5 is also a double-sided annular rotary bearing.

  The bottom plate 7 of the rotary filtration drum container 5 is formed in a curve similar to the curve of the lower chord portion of the rotary filter drum 6 rotatably accommodated in the rotary filter drum container 5. Between the lower chord portion of the rotary filter drum 6 and the bottom plate 7 of the rotary filter drum housing 5, a scraper of a scraper chain 12 that rotates by receiving a driving force transmitted from a driving source rotates along the surface of the bottom plate 7. A moving gap is formed.

  The rotation of the rotary filter drum 6 in the rotary filter drum housing 5 is rotated by receiving a driving force from a drive source 30 such as a motor provided outside the rotary filter drum housing 5. It is designed to rotate by receiving power transmission from.

  Inside the filter attached in a state where the used cutting oil overflowing from the chip conveying member container 1 flows into the rotary filter drum container 5 and wound around the drum circumference of the rotating filter drum 6 rotating, A nozzle tube 20 having a nozzle 21 for injecting air or liquid for blowing off chips adhering to the filter of the rotary filtration drum 6 from the inside of the rotary filtration drum to the outside of the rotary filtration drum is provided.

  The used cutting oil flows into the rotary filtration drum container 5 from the chip conveying member container 1 as shown by an arrow A as shown in FIG. The used cutting oil that has overflowed and flows into the rotary filter drum 6 that rotates in the rotary filter drum housing 5 passes through a filter disposed on the periphery of the rotary filter drum 6, and the body of the rotary filter drum 6. Treated cutting oil mixed with spent cutting oil when it passes into the inside is processed with cutting oil removed by the filter that is prevented from passing by the filter disposed around the drum of the rotary filtration drum. Will enter as.

The chips that are prevented from entering the rotary filter drum 6 by the filter provided in a wound state around the drum circumference of the rotary filter drum 6 that is rotatably arranged on the rotary filter drum housing 5 are the filter surface. Adhere to.
The chips adhering to the filter surface are blown away from the filter surface to the outside by the air or liquid sprayed from the nozzle 21 of the nozzle tube 20 placed in the rotary filter drum 6 and viewed from the filter surface. Dropped into 5.
The chips blown down into the rotary filtration drum container 5 are mixed with the used cutting oil overflowing from the chip conveying member container 1 into the rotary filter drum container 5, and the chips are stored in the rotary drum. It is scraped up by a scraper conveyor 12 that rotates in the container 5.

  The treated cutting oil that has been captured and removed by the filter disposed in a state of being wound around the circumference of the rotary filtration drum 6 and has flowed into the rotary filtration drum 6 is disposed on both sides of the rotary filtration drum 6 or at least. For example, a rotary shaft formed as an annular shaft on one side plate is formed as a bearing that supports an annular shaft formed on the side plate of the rotary filter drum 6 on both sides of the rotary filter drum housing 5 or one side plate. For example, a discharge port for processed cutting oil, which includes an annular shaft of the rotary filtration drum and an annular bearing of the rotary filter drum housing, is formed by being rotatably supported by the annular bearing, and the rotary filtration drum housing body is formed from the discharge port. The treated cutting oil from which the chips in the used cutting oil are removed by the accommodated rotary filter drum is discharged out of the rotary filter drum housing 5.

  The chips in the used cutting oil mixed with the chips flowing into the rotary filter drum container 5 adhere to the filter disposed on the circumference of the rotary filter drum 6 as described above, and the rotary filter drum 6. The chips mixed in the used cutting oil that is prevented from entering the rotary filtration drum 6 but that does not enter the rotary filtration drum 6 are rotated in the rotary filtration drum container 5 and the rotary filtration drum container. 5 and 6 is scraped up from the bottom plate 7 of the rotary filtration drum container 5 as shown in FIGS. 5 and 6 by the scraper conveyor 12 that rotates the rotary filtration drum 6 in the process of passing between the five bottom plates 7. The body 5 is pushed onto a baffle plate 11 provided on the upper side of the side wall 8 by an extension plate obtained by extending the bottom plate 7 and is pushed out from the baffle plate into the cutting and conveying member housing 1. And the chip is conveyed by the chip conveying member 2 which operates in the chip conveying member container 1 to the chip releasing part 4, and from the chip releasing part 4 to the outside of the chip conveying member container 1. Prodigal.

  The characteristics of the filtration device constituting the present invention will be described. The filtration device of the present invention has a chip conveying member at a desired location on at least one side wall in the direction from the upstream side to the downstream side of the chip conveying member container 1 having the above-described configuration for accommodating the chip conveying member 2. A rotary filtration drum housing 5 that houses a rotary filtration drum 6 having an axial center disposed in parallel with the chip conveying direction by the chip conveying member 2 accommodated in the container 1 is provided. . As described above, the rotary filter drum housing 5 is configured such that a bottom plate 7 is formed in a shape similar to the lower chord portion of the rotary filter drum 6 rotatably accommodated in the rotary filter drum housing 5, and the arc-shaped bottom plate 7 is In the extended extension plates 8 and 9, the upper side of the extension plate 8 extending to the side adjacent to the chip conveying member container 1 is connected to a desired location on the one side wall of the chip conveying member container 1 provided side by side. However, an inflow side into which used cutting oil into which the chips from the chip conveying member container 1 are mixed is located near the upstream side of one side wall of the chip conveying member container 1 on the one side. 10 is provided, and a baffle plate 11 is provided on the other side near the downstream side of the one side wall to prevent the flow of used cutting oil from the chip conveying member housing.

In order to install the rotary filtration drum container 5 having the above-described configuration on the one side wall of the chip conveying member container 1, the extension of the rotary filtration drum container 5 on the one side wall of the chip conveying member container 1. As shown in FIGS. 3 and 4, the inflow side 10 forming portion on the upper side of the side wall 8 which is a plate is disposed upstream of a desired portion of the one side wall of the chip carrying member housing 1. The side plate of one side wall is connected in contact with the inflow side, and the baffle plate 11 forming portion is cut downstream of a desired portion of the one side wall of the chip conveying member container 1 as shown in FIGS. The one side of the chip conveying member container 1 is located from the position where the inflow side 10 is located by projecting into the chip conveying member container 5 from the side plate on one side wall of the powder conveying member container 5. Used cutting oil mixed with chips introduced into the chip conveying member container 1 from the rotary filter To flow into the arm containing body. Moreover, it is made for the said used cutting oil not to flow in from the said one side of the chip | tip carrying-out member container 1 from the location where the said baffle plate 11 is located.

  Since the side wall 8 which is an extension plate located on the chip conveying member container 1 side of the rotary filter drum container 5 is configured as described above, the rotary filter drum container is formed from the inflow side 10 formed on the side wall of the extension plate. The used cutting oil which flows into 5 will exhibit the phenomenon which pushes the chip mixed in this used cutting oil into the baffle plate 11 side formed in the side wall 8 which is this extension plate by the inflow pressure. By exhibiting this phenomenon, the scrap collecting efficiency on the baffle plate 11 side by the scraper conveyor 12 described later is improved. That is, the chip scraping efficiency by the scraper conveyor in the rotary filtration drum container 5 is improved.

  That is, the used cutting oil from the chip conveying member container 1 that has flowed into the rotary filter drum container 5 from the inflow side 10 spreads and fills the rotary filter drum container 5, and the rotary filter drum container 5. The used cutting oil is trapped by the cutting fluid mixed in the used cutting oil by the filter of the rotary filtration drum 6 disposed therein, and is rotated as a processed cutting oil from which the cutting powder has been removed. The processed cutting oil flows into the body of the filtration drum 6, and the processed cutting oil is discharged from the annular shaft serving as the discharge port of the rotary filtration drum 6 and the annular bearing serving as the discharge port of the rotary filtration drum housing 5 to the outside of the rotary filtration drum housing 5. Discharged.

Therefore, in the rotary filtration drum container 5 of the used cutting oil that flows into the rotary filter drum container 5 from the chip conveying member container 1 side, the processed cutting oil discharge port side of the rotary filter drum container 5 is disposed on the processed cutting oil discharge side. This creates a heading flow.
In addition, the upper side of the extension plate (side wall) of the rotary filtration drum container is an obstacle to prevent the flow of used cutting oil mixed with chips from the chip conveying member container as shown in FIGS. A plate 11 is formed.
On the downstream side of the rotary filtration drum housing 5 that forms the baffle plate 11, chips are fed into the used cutting oil flowing into the rotary filtration drum housing 5 from the chip conveying member housing 1 by the inflow pressure. The flow which will be in the state disperse | distributed to the baffle plate 11 formation part side will be produced.

  In this state, the chips are attached by the filter of the rotary filtration drum 6 that rotates in the rotary filtration drum housing 5, so that the function of increasing the attachment efficiency is exhibited.

  Therefore, the used cutting oil mixed with the chips is mixed with a larger amount of chips on the side of the rotary filtration drum housing 5 that is offset to the outlet side that is opened on one side of the rotary filtration drum housing 5. A state will be created. As a result, the rotary filter drum 6 is rotated by a relatively large amount of chips on the opening side through which the treated cutting oil flows out of the annular rotary shaft of the rotary filter drum 6 and the annular rotary bearing of the rotary filter drum housing 5. The scraper conveyor 12 is arranged to scrape off.

As shown in FIGS. 5 and 6, the chips are formed on the side wall 8 which is an extension plate of the rotary filtration drum container by a scraper conveyor 12 suspended on a device that rotates the rotary filtration drum 6. It is pushed out on the baffle plate 11 as shown by an arrow B, and then enters the chip conveying member container 1 by the continuous extrusion. It is dropped into the rotary filtration drum housing 5 by the spray oil sprayed from the spray nozzle 21 disposed within the filter surface of the rotary filter drum 6.
The chips pushed out in the direction of the baffle plate 11 fall into the chip conveyance member container 1 containing the chip conveyance member 2 by the chips sequentially pushed onto the baffle plate 11, and the chip conveyance member container 1. It is conveyed toward the chip release part 4 by the chip transfer member 2 disposed inside, and is released from the chip release part 4 to the outside of the chip transfer member container 1.

DESCRIPTION OF SYMBOLS 1 Chip conveying member container 2 Chip conveying member 3 Used cutting oil inlet 4 Chip releasing part 5 Rotary filtration drum container 6 Rotary filtration drum 7 Bottom plate 8 of rotary filtration drum container Extension plate 9 extending from the bottom plate toward the chip conveying member container side Extension plate 10 from the bottom plate of the rotary filtration drum container Inflow side 11 formed at the upstream side position of the upper side of the bottom plate extension plate Downstream position of the upper side of the bottom plate extension plate Baffle plate 12 formed on the scraper conveyor that rotates the rotary filtration drum

Claims (1)

A used cutting oil inlet is provided on the upstream side, the rising side is the rising slope, the tip is the chip radiating part, and the inside is a rising slope from the upstream side to the downstream side where the used cutting oil inlet is arranged. Chips that operate by receiving power transmission from a power source that transports the chips mixed in the used cutting oil introduced from the used cutting oil inlet toward the chip releasing part disposed at the tip of the part Rotation in which a rotary filter drum is rotatably accommodated in a desired portion of a side wall on at least one side of the chip conveying member housing in the direction of the chip conveying direction of the chip conveying member housing with the conveying member incorporated therein In a filtration device having a filtration drum container, the rotary filtration drum container is housed as a rotary filtration drum whose axis is parallel to the conveying direction of the chips conveyed in the chip conveying member container, and the bottom plate is The lower chord and phase of the rotary filtration drum An inflow side and a baffle plate on the upper side of the side wall, which is an extension plate extending from the bottom plate to the side surrounding the drum circumferential surface side of the rotary filtration drum, extending from the bottom plate to the chip conveying member container side The rotary filtration drum slides along a bottom plate that rotates by receiving power transmitted from a power source, and the scraper conveyor rotates to rotate the rotary filtration drum. The inflow side formed on the upper side of the side wall of the extension plate of the rotary filter drum container is placed upstream of the upper side of a desired portion of the side wall of the chip conveying member container. The filter is characterized in that the baffle plate is positioned on the downstream side, protruded from the position into the chip conveying member housing and connected to the chip conveying container, and the rotary filtration drum container is additionally provided. Apparatus.

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