JP2014226773A - Coolant filter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coolant filter device where filtration accuracy is further enhanced and at the same time, the separation of chips becomes easy by using magnetic force accompanying the further improvement of magnetic force since the separation of the chips generated in a filtration process becomes difficult because of strengthening of magnetic force year by year and the abrasion of a scraper for chip separation is severe although filtration is performed by applying the magnetic force of magnet pieces in a disk type separator being relatively opposed in a filter device being a magnetic separator generally used in an industrial filtration process.SOLUTION: The basis of a coolant filter device is to obtain maximum filtration accuracy and a method for realizing the basis is that: a magnetic field is formed by strong magnetic force between relatively facing magnet pieces (N, S); filtration accuracy is enhanced; and at the same time, how filtered and separated chips are easily removed. It is aimed that the positioning of the magnet pieces is considered, the abrasion of a scraper by the chips due to the generation of strong magnetic force is reduced and the chips are separated.

Description

    The present invention is a coolant device for filtering a coolant used in a machining process of a magnetic material.

    In general, this is a type in which a magnet piece is fixed to a drum mold in a filtration device called a magnet separator, and the entire drum is rotated so that chips are adsorbed and removed by a scraper. On the other hand, a magnet piece is fixedly arranged on a drum mold, and only the outer cylinder of the drum is rotated to adsorb and move chips, and then removed with a scraper. On the other hand, a type in which a magnet piece is fixed to the side surface of a circular disk plate and the whole is rotated to remove adsorbed chips with a scraper. It can be seen as an isogas filtration device. In recent years, with the improvement of magnet processing technology, there has been a demand for a filtration device that makes the magnetic force stronger and fully utilizes it.

    In recent years, the magnetic force of the magnet has become stronger, in order to further improve the accuracy of filtration, the magnet pieces are opposed to each other, and a strong magnetic field of N pole pair S pole (or N pair N, S pair S) is arranged. In other words, the magnet piece is opposed to the disc, the disc is rotated, the chips are attracted to the magnet, and the scraper removes the magnet with strong magnetism. Difficulties arise in the separation of chips. A device that facilitates separation of adsorption and pursues high-precision filtration.

    The gist of the present invention for achieving the object is easy separation of chips accompanying high-precision filtration by the high magnetic force of the magnet. That is, in the machining process of magnetic materials, the magnet piece is powerfully attached to a liquid tank having an inlet through which coolant containing chips flows, with a horizontal fixed shaft attached to one left side wall of the tank as a base axis. Two disks with a magnetic circuit designed and arranged are attached as a set to a relative surface at regular intervals. On the other hand, the right side wall is made up of a stepped cylindrical closed case that can be rotated with a non-magnetic material in accordance with the shape of two discs facing each other attached to the base shaft. , Only the case shape is rotated. In the disk to which the magnet piece is attached, a strong magnet piece is placed in the area where filtration is assumed, and the size of the moving part of the chips is gradually reduced while the magnetic force of the piece is gradually reduced. The arrangement circuit is assembled in the outer peripheral direction of the upper part, and the upper part is attached to a strong magnet piece and is attached to the sub magnet drum.

    In the filter device for the processing of chips generated from the machining process of magnetic materials, the magnetic circuit is effectively designed in the N and S poles by making the strong magnet piece face the disk. The effect of filtration performance due to the strength of is also recognized. In addition, the movement of chips from the filtration range is gradually moved by the rotation of the enclosing case according to the shape to which the disc is attached, and the sub-magnet piece with a strong magnet piece attached in the drum is within the range where the magnetic force of the magnet is reduced. At the same time, it is attracted to the magnetic drum, and at the same time, it moves gradually by the rotation of only the outer cylinder of the sub-drum, and is separated by a scraper within a range where there is no magnetic force. Attaching and attracting a magnet piece to a disk and rotating and separating the whole required the wear resistance of the scraper contact portion during separation and the accuracy of assembly parts. In particular, although it was remarkable in the grinding process using a grindstone, in this invention, it has the structure which can respond even if magnetic force becomes stronger.

  General installation system diagram   Filtration flow diagram   Equipment cross section   Magnet piece layout

    Hereinafter, an example of the present invention will be described in detail with reference to FIGS.

    FIG. 1 is a schematic diagram showing the configuration of a system incorporating a coolant filtering apparatus according to an example of the present invention. Chips and coolant flow from the machining apparatus 101 through the inlet 1 of the filtration apparatus 100 and are filtered. The coolant flows out from the outlet 2 to the storage tank 102 and is not shown from the storage tank 102, but is machined by a pump. It consists of the process of supplying to the apparatus 101. The chips removed from the coolant are discharged to the chip box 103.

    FIG. The main body filtering device 100 has a tank 5 having an inlet 1 into which coolant containing chips flows, a left, right, front and rear side plates of the tank, a lower slope and a circular low plate 3, and an outlet 2. The liquid tank 4 is configured with the lowest plate 4.

    FIG. The base shaft attached to the left and right walls of the liquid tank 5 is a horizontal fixed shaft 6, one of which is fixed by a fixing flange 7, and the magnet piece 8 is attached to the shaft 9 a, 9 b on the shaft using the fixed shaft 6 as a base shaft. 9c and 9d are arranged at regular intervals with plate bushes 10a and 10b and a collar 11, and four are attached to the relative surfaces.

    On the other hand, the outer periphery of the four discs attached to the base shaft 6 is a cylindrical case with a sealed step that can be rotated by a nonmagnetic material, bearings 12 and 13 are arranged at both ends of the base shaft 6, the left bearing flange 14, the right The bearing flange 15 is attached, and the drums 18a, 18b, 18c and the desk plates 19a, 19b, 19c, 19d, 19e, 19f are attached through the color joints 17a, 17b to which the bearings 16a, 16b are attached. A stepped cylindrical rotating case type, that is, 14, 19a, 18a, 19b, 17a, 19c, 18b, 19d, 17b, 19e, 18c, 19f, 15 is formed. A rotating shaft end 20 for external rotation is attached to the right bearing flange 15 of the case, and a bearing 22 is disposed on the fixed flange 21 to form a rotating structure. And it is set as the structure which rotates the outer periphery cylindrical case 31 of the submagnet drum 30 which comprised the fixed magnet piece simultaneously with the drive motor 24 attached to the motor base 23 via the gears 25, 26, and 27. FIG.

    As in the case of the stepped cylindrical case, the sub-magnet drum has a horizontal fixed shaft 32 as a base shaft on the left and right walls of the liquid tank 5, and one shaft is fixed by a fixed flange 33. The magnet piece 34 is designed and arranged on the drum frame 30 and fixed to the base shaft 32. On the other hand, the outer periphery of the drum frame attached to the base shaft 32 is formed in a sealed cylindrical case shape that can be rotated by a nonmagnetic material, that is, the cylindrical material 31, the flange plates 35a and 35b, and the bearing flanges 36 and 37, thereby forming a cylindrical case shape. Bearings 38 and 39 are arranged on the left and right sides of the base shaft 32, and the cylindrical case shape is rotated by the rotation of the gear 27 and the drive motor 24 at the rotation shaft end 40 for external rotation.

    In addition, the design structure of the magnet piece attachment with respect to coolant filtration and the removal of chips is shown in FIG. 3 in the disk 9 and in the filtration area as shown in FIG. M2, M3 are disposed, and M4, M5, and M6 are disposed in the chip moving portion, and an object that gradually decreases the magnetic force is disposed to guide the chip in the circumferential direction. The surface of the magnet piece is N pole for M1, M pole for M2, N pole for M3, S pole for M4, N pole for M5, S pole for M6, facing discs 9a and 9b, and 9c and 9d 6 have reciprocal poles, each fixed. A stepped cylindrical case rotates on the outer periphery, and by forming a magnetic field of facing magnet pieces, chips are adsorbed by the magnetic force near the filtration range of the disk plates 19b, 19c, 19d, and 19f of the stepped cylindrical shape. As the stepped cylindrical case rotates, it gradually moves in the magnet piece arrangement direction. The chips that have gradually moved to the upper part are transferred to the cylindrical case 30 that rotates on the outer periphery of the sub drum frame fixedly attached to the base shaft 32 by the magnetic force of the strong magnet piece disposed on the sub magnet drum. Then, along the circumferential direction of rotation, S.M. N. S. N. Arrange the pole or its opposite pole. The chips gradually move together with the rotation, and the squeezing roller 41 is disposed on the way, the liquid is drained, and the chips are separated by the scraper 42 within the range where the magnetic force is reduced.

5 Liquid tank 6 Horizontal fixed shaft 7 Fixed flange 8 Magnet pieces 9a, 9b, 9c, 9d, discs 10a, 10b, plate bush 11 collars 12, 13, bearings,
14 Left bearing flange 15 Right bearing flange 16a, 16b Bearing 17a, 17b Color joint 18a, 18b, 18c, 18d Drum 19a, 19b, 19c, 19d, 19e, 19f Disk plate 20 Rotating shaft end 21 Fixed flange 22 Bearing 23 Motor base 24 Drive motor 25, 26, 27 Gear 30, Sub magnet drum, 28, 29 No.

Claims (2)

    In a coolant filtration process in machining of magnetic material, a liquid tank having an inlet through which coolant containing chips flows is supported on one side wall of the tank, and a shaft based on a horizontal fixed shaft is supported. A magnet piece is arranged on one side of the disc on the base shaft, a magnet piece is also arranged on the other disc, and the two discs are arranged at regular intervals to form a magnetic circuit. Make them face each other. A non-magnetic material is used to form a stepped cylindrical sealed case shape that matches the disc placed on the base shaft, while the other side wall supports a rotating shaft and rotates only the stepped cylindrical sealed case shape from outside the tank with a rotating mechanism. The structure to be made.     The two discs with the magnet pieces arranged and facing each other pass through the two side wall plates of the stepped cylindrical sealed case, and if one of the poles of the relative faces of the magnet pieces is the S pole, the other Is N pole. For the purpose of improving the filtration performance by forming a magnetic circuit between the pieces, the chips adsorbed on the side wall of the case are arranged on the disc, and one of them is the S pole, N If the poles, S poles, etc. are placed on the other side, the side walls of the case are gradually moved by rotating the case while changing the diameter and placement point of the pieces in the circumferential direction while arranging the N pole, the S pole, and the N pole. Let For this purpose, the magnet pieces are arranged so that one is S pole, the next is N pole, the next is S pole, and the other is N pole, S pole, N pole, etc. It is intended to be configured with a set of two sheets facing each other with a magnetic circuit for moving the adsorbed chips. As a flow of work process, coolant containing chips enters from the inlet of the liquid tank, passes through the side wall space of the stepped cylindrical sealed case shape surrounding the magnet piece arranged on the disk and the disk, chips Is attracted to the case side wall of each magnet piece facing each other. A filtration configuration that is filtered at the same time and discharged from the bottom bottom outlet at the overflow from the rising edge of the lower circle. On the other hand, the chips adsorbed on the side wall of the case gradually move in the direction of the magnet piece in the rotational direction as the case rotates and as the amount of adsorption increases. The swarf that has been gradually guided and moved is located near the upper part of the disk, parallel to the base shaft attached to the liquid tank, and a sub-magnet drum is placed. The moved chips are arranged and moved by adsorbing and moving the chips moved on the side wall of the stepped cylindrical sealed case. The moved chips move on the outer circumference of the cylinder by the rotation of the outer cylinder of the sub magnet drum. In the vicinity of the top, the chips are drained with a squeezing roller, then separated with a scraper and discharged. This is a coolant filtration device characterized by the above.

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