JPH0580508U - Cutting oil filter - Google Patents

Abstract

(57) [Abstract] [Purpose] A rotary cylinder is slantedly arranged on a cutting oil storage tank, and a clogging of the filter mesh of a cutting oil filtering device having a filter mesh at the longitudinal middle portion of the cylinder is eliminated. To obtain a cutting oil filtering device capable of spraying a part of the filtered cutting oil in a storage tank to prevent it without using compressed air in the air line, and discharging chips from which the cutting oil has been sufficiently removed. [Structure] A configuration in which cutting oil in a storage tank is pumped up and sprayed from a diagonally lower side of the filter net on the side that is raised by the rotation of the rotary cylinder, and the rotational speed of the rotary cylinder is variable.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a cutting oil filtering device for removing chips generated by cutting a work from cutting oil used in a cutting machine, the cutting oil being discharged from the cutting machine and filtered by the filtering device. A rotary cylinder rotating around the center line is inclinedly arranged on the storage tank, and a longitudinal intermediate portion of the rotary cylinder is formed with a filter mesh, and the rotary cylinder is opened from an opening at one end thereof. The cutting oil flowing along with the chips passes through the filter mesh and flows down into the storage tank, and the chips on the filter mesh separated from the cutting oil are distributed along the inner peripheral surface of the rotary cylinder. The present invention relates to an improvement of a spiral guide blade that moves toward the other end of the rotary cylinder and is discharged from the other end as the rotary cylinder rotates.

[0002]

[Prior Art]

 In the cutting oil filtering device having the above-described structure disclosed in Japanese Utility Model Laid-Open No. 64-4540, a plurality of air outlets are opened above the filter screen portion of the rotary cylinder, facing the filter screen portion. The pipe is placed parallel to the center line of the rotary cylinder, and the compressed air blown out from the air outlet is blown onto the filter mesh to prevent the filter mesh from being clogged with chips. However, if a large number of cutting oil filters are used in one plant, a large amount of compressed air will be used and the pressure of the factory's air line will drop, which may interfere with other equipment that uses compressed air. There is a problem of coming.

In order to obtain the momentum necessary to remove the chips that clog the filter screen from the filter screen, the flow velocity of the air must be high in order to obtain the momentum required by the low-density air flow. While the amount of air consumed becomes large, if a part of the cutting oil in the storage tank filtered by the cutting oil filter is pumped up and blown onto the filter net, the Since the density is higher than the density of air, it has a large momentum, which not only effectively prevents clogging, but also has the advantage that it does not hinder the device using the airline, but cutting oil is sufficient. There was a problem that chips that were not removed were removed from the filtration device.

[0004]

[Problems to be solved by the device]

 Part of the cutting oil in the cutting oil storage tank was pumped up and sprayed onto the filter mesh of the rotating cylinder to prevent the filter mesh from being clogged with cutting chips, and the cutting oil was sufficiently removed. It is an object of the present invention to obtain a cutting oil filtration device that can discharge chips from the rotary cylinder.

[0005]

[Means for Solving the Problems]

 The problems of the present invention have been solved by the following configurations. That is, a plurality of nozzles for drawing up and spraying the cutting oil in the storage tank from a diagonally lower side of the filter net portion on the side that is raised by the rotation of the rotary cylinder body are arranged linearly, and The rotation speed is variable, and the time until the chips reach the other end of the rotary cylinder, that is, the end on the chip discharge side while removing the cutting oil, can be selected.

[0006]

[Action]

 A part of the chips on the filter screen separated from the cutting oil rises on the filter screen by the rotation of the rotating cylinder, but the nozzle that blows out the cutting oil is arranged diagonally below the rising side. Therefore, the chips are dropped to the lowest position of the circular cross section early in the ascending process, and the feeding by the spiral guide vanes is promoted.

A part of the blown cutting oil hits the filter net and is repelled, but the cutting oil that is a liquid has a higher density than air that is a gas, and therefore has a large momentum and a strong force that penetrates the filter net. The chips clogging the filter screen can be effectively removed to prevent clogging.

[0008] The chips of the rotary cylinder are sent out toward the discharge side end from the area of the filter net sprayed with the cutting oil, and a part of the chips wet with the cutting oil is discharged to the inner surface of the rotary cylinder. It adheres and rises with rotation, and the other part falls to the vicinity of the lowest position of the circular cross section of the rotating cylinder due to gravity, moves along the spiral guide vane toward the open end, and cuts in between. The cutting oil adhering to the powder permeates the filter net in the filter net area and flows down into the storage tank, or the cutting oil that could not permeate the filter net due to clogging has the lowest circular cross section. In the area of the screen where the cutting oil flows down along the slope and is sprayed with the cutting oil, the cutting oil, which has been sprayed onto the screen and enters the inside of the rotary cylinder, passes through the screen and flows down into the storage tank. The cutting oil remaining in the chips sent to the non-filter mesh area flows down toward the filter mesh area along the slope formed by the lowest circular cross section.

The time required for the cutting oil to be discharged from the rotary cylinder and out of the area where the cutting oil is sprayed in the filter net area is the time required for removing the cutting oil from the cutting powder. As described above, since the rotation speed of the rotary cylinder can be adjusted, the chips from which the cutting oil is sufficiently removed are discharged.

[0010]

【Example】

 1 to 4 show an embodiment of a cutting oil filtering apparatus of the present invention, FIG. 1 is a side view with a partial cross section, FIG. 2 is a view taken along arrow A of FIG. 1, and FIG. 2 is a view on arrow B, and FIG. 4 is a view on arrow C in FIG. In each drawing, reference numeral 1 is a storage tank for cutting oil, 2 is a rotary cylinder that is arranged obliquely on the storage tank 1, and 3 is a filter mesh that forms an intermediate portion in the longitudinal direction of the rotary cylinder 2. The cylindrical portions on both sides in the longitudinal direction of the filter net 3 are made of, for example, a steel plate.

Reference numeral 4 denotes a tubular portion made of a steel plate on the lower side of the filter net 3, 5 denotes a tubular portion made of a steel plate on the higher side of the filter net 3, and the tubular body portion 4 and the tubular body portion. 5 and 5 are integrally connected by a plurality of strips 6.

Reference numeral 7 denotes an end wall of the tubular portion 4 forming one end of the rotary tubular body 2, having an opening 8 and cutting oil flowing out of the cutting machine by a chute 9 from the opening 8. Flows into the rotary cylinder 2 together with chips. The inflowing cutting oil leaves chips on the filter net 3, passes through the filter net 3 and flows down into the storage tank 1.

Reference numeral 10 is the other open end of the rotary cylinder 2, that is, the open end of the cylindrical portion 5, and 11 is a spiral guide blade formed along the inner peripheral surface of the rotary cylinder 2. The chips separated from the cutting oil on the filter screen 3 are moved toward the other end 10 as the rotary cylinder 2 rotates.

Reference numeral 12 denotes a roller that supports the outer peripheral surface of the rotary cylinder 2 at four locations, 13 denotes a roller that supports the end wall body 7, and 14 denotes an outer periphery of the cylindrical portion 4 of the rotary cylinder 2. The large gear 15, 15 is a small gear that meshes with the large gear 14, and is driven by a variable speed motor 17 via a belt 16. Reference numeral 18 is a control box for the variable speed motor 17.

Reference numeral 19 is a pipe in which a plurality of nozzles for spraying cutting oil from the outside toward the filter net 3 of the rotary cylinder 2 are linearly opened, and 20 is a pump for pumping the cutting oil in the storage tank 1. Then, it is pressure-fed to the pipe 19 and sprayed in the radial direction of the rotary cylinder 2 from the nozzle opening in the pipe 19 toward the filter net 3. The pipe 19 is arranged obliquely below the portion of the filter net 3 on the side that is raised by the rotation of the rotary cylinder 2 in the direction of the arrow 21. As a more specific example, in FIG. 2, in the plane including the center line of the rotary cylinder 2 and a straight line inclined downward by 20 degrees with respect to the horizontal straight line 22 intersecting with the center line, A 3/8 inch gas pipe is arranged at a position 30 mm away from the filter screen 3, ten nozzles having a diameter of 4 mm are opened in the gas pipe, and the pressure of the cutting oil in the pipe 19 is about 0.8 kg / cm. ^Two And 2 and 4, 23 is a valve for adjusting the flow rate of the cutting oil sprayed on the filter net 3, and 24 in FIGS. 3 and 4 is a valve for adjusting the flow rate of the cutting oil sprayed.

In FIG. 4, the cutting oil passing through the region R of the filter net 3 to which the cutting oil is sprayed in the direction of the arrow 25 has the cutting oil removed by the process described in the section of the action. The rotation speed of the variable speed motor 17, that is, the rotation speed of the rotary cylinder 2 is adjusted so that the cutting oil is sufficiently removed before reaching the open end 10. Although illustration is omitted, it is needless to say that a cover around which the cutting oil is scattered is provided around the nozzle.

[0017]

[Advantages of the Invention] By blowing the cutting oil itself filtered as described above onto the filter mesh, it is possible to prevent clogging of the filter mesh without the use of compressed air in the factory's air line, and to perform sufficient cutting. It has been possible to obtain a cutting oil filtration device that can discharge chips after removing oil.

[Brief description of drawings]

FIG. 1 is a side view of a cutting oil filtration device of the present invention with a partial cross section.

FIG. 2 is a view on arrow A of FIG.

FIG. 3 is a view on arrow B of FIG.

FIG. 4 is a view on arrow C in FIG.

[Explanation of symbols]

 1 Cutting Oil Storage Tank 2 Rotating Cylindrical Body 3 Filter Net 4 Cylindrical Part Made of Steel Plate Lower than Filter Net 5 Cylindrical Part Made of Steel Plate Higher than Filter Net 6 Band 7 End Wall 8 Opening 9 Chute 10 Open end from which chips are discharged 11 Spiral guide vane 12 Roller 13 supporting the outer circumference of the cylinder surface 13 Roller supporting the end wall body 14 Large gear 15 Small gear 16 Belt 17 Variable speed motor 18 Control box 19 A pipe in which a plurality of nozzles open linearly 20 A pump 21 An arrow indicating the direction of rotation 22 A horizontal straight line 23 A cutting oil sprayed on a filter mesh 24 A valve 25 An arrow indicating the direction in which chips proceed

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical display location B01D 33/58 B23Q 11/00 U 7908-3C (72) Creator Toshio Kondo 2480 Kuno, Odawara, Kanagawa Prefecture Address Mikuni Odawara Plant (72) Inventor Kazuo Kobayashi 2480 Kuno, Odawara City, Kanagawa Prefecture Mikuni Odawara Plant (72) Inventor Akihisa Shimura 2480, Kuno, Odawara City, Kanagawa Prefecture Mikuni Odawara Plant

Claims (1)

[Scope of utility model registration request] 1. A cutting oil filtering apparatus for removing chips generated by cutting a workpiece from cutting oil used in a cutting machine, the cutting being discharged from the cutting machine and filtered by the filtering apparatus. On the oil storage tank (1), a rotary cylinder (2) that rotates around a center line is arranged in an inclined manner, and a longitudinal intermediate portion of the rotary cylinder (2) is formed with a filter mesh (3). The cutting oil flowing along with the chips from the opening (8) at the lower end of the rotary cylinder (2) passes through the filter net (3) and flows down into the storage tank (1). The cutting chips on the filter net (3) separated from the cutting oil are formed along the inner peripheral surface of the rotary cylinder (2) with a spiral guide blade (1).
1) by the rotation of the rotary cylinder (2), it moves toward the other end (10) of the rotary cylinder (2),
In order to prevent the filter mesh (3) from being clogged with chips in the discharge from (0), the filter mesh (3) on the side that is raised by the rotation of the rotary cylinder (2),
A plurality of nozzles for pumping up and spraying the cutting oil in the storage tank (1) are arranged linearly from diagonally below the filter net (3), and the rotation speed of the rotary cylinder (2) is variable. A cutting oil filtering device capable of selecting a time until the chips reach the other end (10) while removing the cutting oil.