JP2010052077A - Safety device disposed at cutting chip discharge port of filtration apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety device to be disposed, for hazard prevention, at a cutting chip discharge port of a cutting chip discharge section of a filtration tank configured such that an endless scraper conveyor turning inside the filtration tank collects cutting chips mixed in a cutting fluid deposited on a bottom plate of the filtration tank to discharge the cutting chips from the cutting chip discharge section at a distal end of one side of the bottom plate, which serves as an upwardly inclined plate. <P>SOLUTION: The cutting chip discharge port, configured such that the endless scraper conveyor turning inside the filtration tank collects cutting chips mixed in the cutting fluid deposited on the bottom plate of the filtration tank to the cutting chip discharge section to discharge the cutting chips therefrom, is provided with a hanging member traversing between side plates on both sides below a ceiling plate. The hanging materials are freely turnably attached to the hanging member, and a leading edge of a cutting chip discharge plate as a constituent material of the cutting chip discharge section formed at the distal end of the upwardly inclined plate is provided with a stopper member to prevent the hanging materials freely turnably attached to the hanging member from entering the inside of the cutting chip discharge port. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a safety device installed at a chip discharge port of a filtration device.

From a factory that drills metal, cuts, grinds, or cuts, a large amount of cutting oil mixed with cutting chips called chips (hereinafter simply referred to as chips) is continuously discharged.
The filtration device for removing the chips from the cutting oil and separating the cutting oil from which the chips have been removed as filtered cutting oil includes Japanese Patent Publication No. 204427 and Japanese Patent Publication No. 8802. There are apparatuses as disclosed in Japanese Laid-Open Patent Publication No. 294142 and Japanese Utility Model Publication No. 13769. The outline of the configuration of the device disclosed in the above publication is that the filtration tank into which the cutting oil is introduced, the inlet for introducing the cutting oil mixed with chips into the ceiling plate is formed, and one side of the bottom plate surface is extended. In the above-described filtration tank, chips formed at the rear of the bottom plate and at the tip of the rising inclined plate are formed. An endless scraper conveyor that rotates along the bottom plate surface and the rising inclined plate surface that extends from the bottom plate surface is pivotably suspended between the discharge sections, and the chips and cutting oil are separated inside the filtration tank. And there exists a thing of the structure type which arrange | positions the means which flows out out of a filtration tank by using the cutting oil which isolate | separated the chip as filtered cutting oil.

In order to separate the chips from the cutting oil mixed with the above-described chips by the filtration device of the configuration type described above, from the input port to which the cutting oil of the filtration tank of the filtration device of the configuration type described above is introduced, continuously Then, the cutting oil described above is added, and the chips mixed in the cutting oil are deposited on the bottom plate of the filtration tank, and the chips deposited on the bottom plate of the filtration tank are deposited in the filtration tank. While being scraped up by the scraper conveyor suspended in a freely rotating manner, it passes through the rising inclined plate surface to the chip discharging portion formed at the tip of the inclined surface, and the chips are filtered from the chip discharging portion to the filtration tank. It goes through the process of discharging to the outside.
The above-described cutting oil in which the chips are precipitated in the filtration tank is filtered by a filtering device provided in the filtration tank and flows out of the filtration tank as filtered cutting oil.

  A member that prevents a hand from being inserted into a chip discharge port, which is a chip discharge unit, has not been arranged in the chip discharge unit of a conventional type of filtration device having the above-described configuration. Therefore, it cannot be said that the hand is not inserted from the chip discharge port of the filtration tank for some reason during the operation of the filtration device. Therefore, it could not be said that there would be no inconvenience of serious injury.

As a countermeasure, a protective cover with a length that does not allow hands to enter from the chip discharge port has been installed so far. For this purpose, the idea that the conveyor outlet has to be extended in the height direction to maintain the height of the conveyor outlet at an unreachable level is dominant. It was structured by adopting the idea. The configuration based on this concept has the disadvantages of increasing costs and requiring more installation space.
Japanese Patent Publication No. 204427 Japanese Patent Publication No. 8802 No. 8802 Japanese Patent Laid-Open No. 294142 No. 13769, No. 7

  In the present invention, in order to prevent the above inconvenience, the chip discharge port of the filter discharge unit of the filter tank of the above-described type of filter is rotated in the filter tank during the operation of the filter apparatus. The scraps deposited on the bottom plate of the filtration tank are scraped up by the endless scraper conveyor and conveyed to the chip discharge unit in sequence, and the chips are pushed forward in the chip discharge unit. The components of the safety device placed in the machine are pushed open, and the chips are discharged from the chip discharge port of the chip discharge unit to the outside of the filter tank. In order to know the state of chip discharge from the chip discharge part of the chip discharge port, an attempt is made to provide a device that prevents a hand from being inserted into the chip discharge part even if a hand is inserted inside the chip discharge part. To do.

An inlet for cutting oil mixed with chips is arranged on the ceiling plate, and the bottom plate is a rising inclined plate with one of the bottom plates extended, and the tip of the inclined plate is formed as a chip discharge part, and the chip discharge The cutting oil filtering equipment is disposed inside a filtration tank having a chip discharge port, a chip discharge plate, a ceiling plate, and both side plates, which are components of the chip discharge unit, An endless scraper conveyor is pivotably suspended between the rear end of the bottom plate of the filtration tank and the side of the chip discharge part, and the endless scraper conveyor scrapes and collects the chips deposited on the bottom plate of the filtration tank. In the filtration device consisting of a constitution form that conveys to the chip discharge part formed at the tip of the chip, and discharges the chips scraped from the chip discharge port of the chip discharge part to the outside of the filtration tank,
A suspension member that traverses between both side plates under the ceiling plate is disposed at the chip discharge port, a suspension member is rotatably attached to the suspension member, and a chip discharge portion formed at the tip of the rising inclined plate A filter device having a structure in which a stopper member is disposed on the front edge of the chip discharge plate, which is a constituent material, so that the suspension member rotatably attached to the suspension member does not enter the inside of the chip discharge port. A safety device is provided at the powder outlet.

Since the chip discharge port of the filtration device according to the present invention is configured to arrange the safety device having the above-described configuration, an operator can remove the chip from the chip discharge port of the filtration device while operating the filtration device by arranging simple equipment. Can prevent unexpected dangers caused by inserting hands

The filtration device to which the safety mechanism of the present invention is attached is the type of filtration device exemplified in the background art section. An outline of an example of the filtration device is shown in FIG. The filtration tank 1 of the said filtration apparatus is the thing of the structure which formed the injection port 3 of the cutting oil which mixed the chip into the ceiling board 2. As shown in FIG. Inside the filtration tank 1, the chips are separated from the cutting oil mixed with the chips introduced into the filtration tank 1, and the cutting oil from which the chips have been separated flows out to the outside of the filtration tank as filtered cutting oil. The cutting oil filtering equipment 12 is provided, and one end of the bottom plate 5 is formed as a rising inclined plate 6, and the tip thereof is formed as a chip discharge part 7, and the rear side of the filtration tank 1 and the chip discharge part 7 side Sprockets 8 and 9 are provided, and the endless scraper conveyor 10 is straddled across the sprockets 8 and 9 so that the scraper 11 of the endless scraper conveyor 10 rises from the bottom plate 5 surface so as to be rotatable along the tip of the inclined plate 6 surface. It is set as the structure which consists of.
Usually, the sprocket 8 provided on the side of the chip discharging part 7 is a sprocket that rotates by receiving a driving force transmitted from a driving source.

  The chip discharge port 20 of the chip discharge part 7 of the filtration tank 1 is a part where the endless scraper conveyor 10 suspended on the sprocket 8 provided on the chip discharge part 7 side rotates except the reversing surface, The chip discharge port 20 of the chip discharge unit 7 is a constituent material of the chip discharge unit 7 formed at the tip of the rising plate 6 on one of the ceiling plate 2, the side plates 4, 4 and the bottom plate 5 of the filtration tank. It is formed as an opening composed of a chip discharge plate.

In order to filter the cutting oil mixed with chips by the above-described filtering device, the above-described charging port provided in the ceiling plate 2 of the filtration tank of the filtering device in operation is operated. 3. Add cutting oil mixed with chips.
The chips mixed in the cutting oil mixed with the chips introduced into the filtration tank 1 are deposited and deposited on the bottom plate 5 of the filtration tank 1 as shown in FIG.

  The scraps of the endless scraper conveyor 10 are filtered by the scraper 11 of the endless scraper conveyor 10 by the rotation of the endless scraper conveyor 10 that is rotatably suspended across the sprockets 8 and 9 disposed in the filtration tank 1. 1, scraping and collecting the chips deposited on the bottom plate 5, transporting them to the chip discharge portion 7 at the tip of the inclined plate 6 along one rising inclined plate 6 surface, as shown in FIG. The powder is discharged from the powder discharger 7 to the outside of the filtration tank 1 of the filtration device and is stored in the chip container 30.

  Chips in cutting oil mixed with chips introduced into filtration tank 1 that are not deposited on the bottom plate 5 surface of filtration tank 1 and mixed in cutting oil are disposed in the filtration tank. The cutting oil filtering equipment 12 that separates the installed chips separates the cutting oil and the chips, and the cutting oil from which the chips have been separated flows out of the filtration tank 1 as a filtered cutting oil.

The chip discharge part 7 of this filtration tank 1 is a component which is a constituent material of the chip discharge part 7 at the tip of the inclined plate 6 where one of the ceiling plate 2, the side plates 4, 4 and the bottom plate 5 is raised. It is formed as a chip discharge port 20 surrounded by a chip discharge plate which is a constituent material of the powder discharge unit.
That is, the chip discharge port 20 is configured to rotate with the endless scraper conveyor excepting the reversing surface.

Under this condition, the person in charge of the filtration device is inadvertently trying to know if there is an abnormality in the state of chips transported by the endless scraper conveyor or if the endless scraper conveyor is in a normal rotating state. Often, an action of inserting a hand into the chip discharge part 7 of the chip discharge port 20 occurs.
It is very dangerous to take such actions because it may be pulled in.

The present invention provides an apparatus that prevents this danger from occurring.
An outline of this apparatus is shown in FIGS. 2A, 2B, 3, and 4. FIG. That is, the tip of the rising inclined plate 6 serves as a chip discharge portion 7, and between the side plates 4 and 4 of the chip discharge port 20 which is the opening thereof, the bottom of the ceiling plate 2 as shown in FIGS. 2A and 2B. A suspension member 21 that crosses between both side plates 4 and 4 is disposed along the side.
The suspension member 21 has a structure in which a plurality of suspension members 22 such as a rod-like body and a narrow plate are paralleled as a shielding member as shown in FIGS. 2A and 2B and rotated along the lower edge of the suspension member 21. The configuration is not particularly limited as long as it can be freely attached.

  By configuring the chip discharge port 20 as described above, the chips scraped by the scraper 11 of the endless scraper conveyor 10 that rotates in the filtration tank 1 are conveyed to the chip discharge unit 7, and the chips Is pushed toward the tip of the chip discharge plate by the subsequent chips on the chip discharge plate which is a constituent material of the chip discharge unit 7. The extruded chips are pushed open as shown in FIG. 3 by suspending the suspension member 22 that is pivotably attached to the suspension member 21 disposed in the chip discharge port. The chips are discharged from the discharge port 20 to the outside.

For example, the suspension member 22 which is a shielding plate is a structure in which a plate-like object is attached to the suspension portion 21 by a butterfly vane, and has a structure that does not open even when pushed from the front direction. As shown in FIG. It is sequentially conveyed to the chip discharge port 20 by the conveyor 10, and the shielding plate 21 is pushed open from the inside by the force on the chip discharge plate constituting the chip discharge unit 7 and dropped.
In the case where a chow bang is not used, instead, a cylinder may be passed through a rod-shaped shaft, a shielding plate may be attached to the cylinder, and the shielding plate may be rotated.
As shown in FIG. 4, this complaint is applied to the above-described suspension member 21 on the chip discharge plate which is a component of the chip discharge portion 7 formed at the tip of the rising inclined plate 6 of the chip discharge port 20. A stopper member 23 that prevents the suspended suspension material 21 from entering the inside of the chip discharge port 20 is disposed on the front edge of the chip discharge plate forming the chip discharge portion 7.

In order to prevent the suspension material 21 that is a shielding plate from being opened even if it is pushed from the front, the lower end of the suspension material 21 that is a shielding plate is applied to the upper end of the conveyor discharge port, or a stopper is provided so that the butterfly vane does not open inward. May be provided.
The material of the suspension member 21 that is a shielding plate may be any material that is light and does not bend down, such as an iron plate or resin.
The width of the suspension member 21 that is a shielding plate is selected so as not to allow human hands to enter.
The length of the suspension member 21 that is a shielding plate is a dimension that covers the chip discharge port 20, so that even if a lower gap is made, a finger cannot enter.
The gap between the suspension members 21 that are individual shielding plates is set to a size that does not allow fingers of the hand to enter.
The attachment angle of the suspension member 21 which is a shielding plate is attached within 90 to 30 degrees with respect to the horizontal.
A rectangular plate is usually attached to the suspension member 21 as a shielding plate. However, a rod-like member may be attached to the butterfly ban as long as a clearance that does not allow a hand is secured.

By attaching this device, when cutting oil is contained in the chips conveyed to the chip discharging portion, an effect of considerably reducing the external take-out of the cutting oil can be obtained. The reason for this is that the chips that have been transported to the chip discharge section and have reached the chip discharge section are temporarily stopped by a shielding plate that is a constituent material of the safety device, and adhered to the chips during that time. This is because the oil has time to rise from the chip discharge part and travel down the inclined plate and return.

It is sectional drawing explaining the outline | summary of this invention. It is a front view of the safety device arranged at the chip discharge port. It is a front view of the safety device arranged at the chip discharge port. It is explanatory drawing of the conveyance state of the chip in a chip discharge part, and the rotation state of the suspension material of a safety device. It is a perspective view of the safety device distribute | arranged to the chip discharge port of a chip discharge part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filtration tank 2 Ceiling board 3 Input port 4 Both-sides board 5 Bottom board 6 Standing inclination board 7 Chip discharge part 8 Sprocket 9 Sprocket 10 Endless scraper conveyor 11 Scraper 12 Cutting oil filtration equipment 20 Chip discharge port 21 Suspension member 22 Suspended material 23 Stopper member

Claims (1)

The ceiling plate is provided with an inlet for cutting oil mixed with chips, and the bottom plate is a rising inclined plate with one of the bottom plates extended, and the tip of the inclined plate is formed as a chip discharge portion. The cutting oil mixed with the introduced chips is filtered inside the filtration tank having the discharge part as a chip discharge port with the chip discharge plate, the ceiling plate, and both side plates which are components of the chip discharge unit. While arranging the equipment, the endless scraper conveyor is pivotably suspended between the rear end of the bottom plate of the filtration tank and the side of the chip discharge part, and the sediment deposited on the bottom plate of the filtration tank by the endless scraper conveyor The chips mixed with the cutting oil are scraped up and conveyed to the chip discharge part formed at the tip of the inclined plate, and the chips are scraped from the chip discharge port of the chip discharge part by an endless scraper conveyor. It consists of a configuration that discharges the cut chips out of the filtration tank In the over-equipment,
A suspension member that traverses between both side plates under the ceiling plate is disposed at the chip discharge port, a suspension member is rotatably attached to the suspension member, and a chip discharge portion formed at the tip of the rising inclined plate A filter device having a structure in which a stopper member is disposed on the front edge of the chip discharge plate, which is a constituent material, so that the suspension member rotatably attached to the suspension member does not enter the inside of the chip discharge port. A safety device disposed at a chip discharge port of a filtration device, wherein the safety device is disposed at a powder discharge port.

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