KR20130131111A - Multi-centrifugal type cutting oil purification apparatus - Google Patents

Abstract

The present invention provides a multistep centrifugal type cutting oil purification apparatus which comprises: a storage space: a supply pipe which penetrates the lower center part and is vertically installed in the upward direction of the storage space; a storage container equipped with a discharging port formed on the lower side; a lower purification apparatus which is composed of a plurality of centrifugal purifiers having injection and discharging nozzles for purifying cutting oil and is circularly arranged about the supply pipe as each injection nozzle communicates with the upper opening part of the supply pipe; an upper purifying device which is composed of a plurality of centrifugal purifiers equipped with injection and discharging nozzles for purifying cutting oil for the second time and is circularly arranged at the outer upper position as each injection nozzle communicates with discharging nozzles of each centrifugal purifier comprising the lower purifying device; an impeller which supplies the cutting oil, that is purified once and is discharged via discharging nozzles of the centrifugal purifier comprising the lower purifying device by generating suction power by rotation, to injection nozzles of centrifugal purifier comprising the upper purifying device; a support piece wherein a fluid path is prepared for discharging the cutting oil purified for the second time and which is placed on the upper part of the storage container; and a driving motor which is connected to the impeller by a rotation shaft and is installed on the upper part of the support piece.

Description

Multi-centrifugal type cutting oil purification apparatus

The present invention relates to a centrifugal cutting oil purifying apparatus, and more particularly, to a storage space in which the purified and remaining residue cutting oil is temporarily stored, and installed vertically upward through the lower central portion and cut through the lower portion. A storage passage provided with a supply pipe through which a cutting oil including chips generated during a processing process is supplied at a constant pressure, and a discharge port formed at one side of the lower side and discharged from the ground cutting oil temporarily stored in the storage space; It consists of a plurality of centrifugal purifier each having an injection nozzle and a discharge nozzle for the primary purification of the cutting oil, each injection nozzle of the centrifugal purifier in communication with the upper opening of the supply pipe A lower purifier disposed annularly with respect to the lower purifier; It consists of a plurality of centrifugal purifier each having an injection nozzle and a discharge nozzle for secondary purifying the cutting oil, each injection nozzle of the centrifugal purifier is discharge nozzle of each centrifugal purifier constituting the lower purifier and An upper purifier disposed annularly at an outer upper point of the lower purifier in a communicating state; Located on the flow path between the discharge nozzle of each centrifugal purifier constituting the upper purifier and the injection nozzle of each centrifugal purifier constituting the lower purifier, generating the suction force according to the rotation to constitute the lower purifier An impeller supplying the primary purified cutting oil discharged through the discharge nozzle of each centrifugal purifier to the injection nozzle of each centrifugal purifier constituting the upper purifier; A support having a flow path for discharging the secondly purified cutting oil through a discharge nozzle of each centrifugal purifier constituting the upper purifier and positioned above the storage container; A drive motor axially connected to the impeller by a rotation shaft penetrating the central portion of the support and installed on an upper portion of the support; It relates to a cutting oil purification apparatus of a multi-stage centrifugal separation method comprising.

In the cutting of metal materials, high heat is generated between the cutting tips and the metal materials. In this process, if the cooling is not effective, the cutting surface becomes rough and the structure of the metal materials changes due to the high temperature. There is also a problem that needs to be replaced frequently. As a result, cutting fluid must be continuously supplied in order to cool the heat.

The lower part of the turning equipment such as a conventional lathe or NC machine is provided with a collection tank for cutting coolant, and the coolant collected in the collection tank includes a lot of fine iron powder or finely cut cutting chips. The cutting oil collected in such a collection tank is reused after removing various impurities using various types of purification devices for reuse.

One example of the prior art proposed for this purpose is Korean Utility Model Registration No. 0431609. The technology basically consists of a head and a cone, of which the head is provided with an inlet nozzle for cutting oil inlet and an outlet nozzle for purifying coolant oil, and the tapered tapered section becomes narrower as it goes down. The inner nozzle of the structure and the bottom nozzle, which discharges the residue cutting oil including the chip is characterized in that each is provided.

This technology purifies the cutting oil by centrifugal separation. Specifically, when the cutting oil is injected into the head through the inlet, the cutting oil descends while turning on the inner surface of the cone, and is caused by the difference in load and the collision with the inner wall. Residual coolant containing chips is naturally discharged through the lower nozzle and the purified coolant is flowed back through the upper nozzle and reused. As another example of such a scheme, there is US Patent No. 2102525, US Patent No. 572666, Japanese Patent Laid-Open No. 2003-225515, and the like.

However, in order to purify a large amount of cutting oil using such a centrifugal separation method, a single device must be enlarged or a small device connected in parallel. The former has a disadvantage in that installation is difficult when the working space is small. In this case, there is a disadvantage in that the apparatus is somewhat complicated in that a pump having a certain capacity must be installed for each apparatus.

Korean Utility Model No. 0431609, Korean Patent No. 0699005, Korean Patent No. 0765474, Korean Patent No. 0897345

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide an apparatus capable of more precisely purifying a large amount of cutting oil using a small power.

In order to achieve the above object, the present invention provides a storage space 120 in which the purified and remaining residue cutting oil is temporarily stored, and is installed vertically upwardly through the storage center 120 through the lower central portion and cut through the lower portion. It is provided with a supply pipe 140 for supplying a cutting oil including a chip generated in the process at a constant pressure, and a discharge port 160 formed on one side of the lower side to discharge the ground cutting oil temporarily stored in the storage space 120. Storage bin 100; It consists of a plurality of centrifugal purifier each having an injection nozzle 222 and a discharge nozzle 224 to purify the cutting oil, each injection nozzle 222 of the centrifugal purifier is the supply pipe 140 A lower purifier 220 disposed in an annular shape with respect to the supply pipe 140 in communication with the upper opening 146 of the; It is composed of a plurality of centrifugal purifier each having an injection nozzle 262 and a discharge nozzle 264 for secondary purification of the cutting oil, each injection nozzle 262 of the centrifugal purifier is the lower purifier 220 An upper purifier 260 disposed annularly at an outer upper point of the lower purifier 220 in a state of being in communication with the discharge nozzles 224 of each centrifugal purifier constituting the; Located on the flow path between the discharge nozzle 264 of each centrifugal purifier constituting the upper purifier 260 and the injection nozzle 222 of each centrifugal purifier constituting the lower purifier 220, To generate the suction force according to each of the centrifugal purifiers constituting the upper purifier 260 with the first purified cutting oil discharged through the discharge nozzles 224 of the centrifugal purifiers constituting the lower purifier 220. An impeller 360 for supplying the injection nozzle 262; A support 320 disposed above the storage container 100 is provided with a flow path 322 through which the second purified purified oil is discharged through the discharge nozzles 264 of the centrifugal purifiers 260. )Wow; A drive motor 340 axially connected to the impeller 360 by a rotation shaft 350 passing through a central portion of the support 320 and installed on an upper portion of the support 320; And the present invention is characterized in that it includes the technical features.

The support 320 is preferably provided with a high pressure pump 330 for sending the secondary purified cutting oil at a high pressure through the flow path 322.

In the present invention, in purifying the cutting oil generated during the process, a plurality of centrifugal clarifiers are arranged in a two-stage annular shape with a predetermined height spaced up and down spaced by repeating purification to select a large amount of cutting oil in a short time precisely It helps to cleanse.

In addition, the present invention adopts a configuration in which the lower purifier is operated using the pumping force of the external pump and the upper purifier is operated by the driving force of the motor to be mounted, so that the cutting oil can be purified sufficiently precisely even using small power. .

In addition, the present invention makes it possible to sufficiently apply to any working environment in that the motor for operating the centrifugal purifier can be integrated with the device and miniaturized to eliminate a separate piping configuration.

1 is a schematic cross-sectional view of a cutting oil purification apparatus of a multi-stage centrifugal separation method according to the present invention.
Figure 2 is a schematic cross-sectional configuration of the upper purification device in the cutting oil purification device of the multi-stage centrifugal separation method according to the present invention.
Figure 3 is a schematic cross-sectional configuration of the lower purification device in the cutting oil purification device of the multi-stage centrifugal separation method according to the present invention.
Figure 4 is a schematic purifying action of the cutting oil made using a cutting oil purification apparatus of a multi-stage centrifugal separation method according to the present invention.

Preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic cross-sectional configuration diagram of a cutting oil purification apparatus of a multi-stage centrifugal separation method according to the present invention, Figure 2 is a schematic cross-sectional configuration diagram of an upper purification apparatus of a cutting oil purification apparatus of a multi-stage centrifugal separation method according to the present invention. Figure 3 shows a schematic cross-sectional configuration of the lower purifier in the multi-stage centrifugal cutting oil purifier according to the present invention.

As disclosed in the drawings, the present invention basically includes a storage container 100 temporarily storing waste chips (hereinafter referred to as chips) including chips generated in a purification process, and cutting oils generated in a metal cutting process (hereinafter referred to as chips). And a pump unit 300 for the operation of the purifier 200.

The storage bin 100 includes a storage space 120, and a supply pipe 140 and a discharge port 160. The storage space 120 forms a closed space as a space in which chips are temporarily stored. The supply pipe 140 is open at both ends and penetrates the lower central portion of the storage container 100 to be vertically installed above the storage space 120. The cutting oil used is introduced at a constant pressure through the lower portion 142 of the supply pipe 140 by the pumping force of the pump (not shown). The discharge port 160 is formed on one side of the lower side of the storage container 100 and is a portion where the chip is discharged to the outside.

The purification unit 200 is composed of two stages, the lower purifier 220 and the upper purifier 260 spaced apart from each other by a predetermined vertical height is characterized by.

The lower purifier 220 is composed of a plurality of configurations of a cyclone filter (cyclone filter type) is provided with each of the injection nozzle 222 and the discharge nozzle 224, arranged in an annular shape based on the supply pipe 140 There is a characteristic. The lower purifier is a means for removing the chips contained in the used coolant to make the first purified coolant (hereinafter referred to as the first coolant), and the injection nozzle 222 of each centrifugal purifier has an upper end of the supply pipe 140. In communication with the opening 146. Although the figure shows six centrifugal clarifier configurations as an example of a lower clarifier, it is obvious that this is only one example. The specific construction and operation of the centrifugal clarifier is well known in the art and will be omitted.

Similarly to the lower purifier 220, the upper purifier 260 is composed of a plurality of centrifugal purifiers each provided with an injection nozzle 262 and an outlet nozzle 264, the lower purifier 220 of the It is arranged in an annular shape at the outer upward point. That is, the upper purifier 260 is installed vertically upward by a predetermined height with respect to the lower purifier 220. The upper purifier 260 is a means for purifying the primary cutting oil by the lower purifier 220 to provide secondary purified cutting oil (hereinafter referred to as secondary cutting oil). Each injection nozzle 262 of the centrifugal purifier 260 is in communication with a discharge nozzle 224 of each centrifugal purifier constituting the lower purifier 220. In the figure, six centrifugal purifier configurations are disclosed as an example of the upper purifier, but this is only one example.

The pump 300 is a configuration for the operation of the purification unit 200, specifically for the operation of the upper purification device 260 of the purification unit. The pump unit 300 includes a support 320, a drive motor 340, and an impeller 360.

The support 320 is a body for supporting the pump unit is provided with a flow path 322 for discharging the secondary cutting oil purified by the upper purifier 260. The drive motor 340 is fixedly installed on the upper portion of the support 320 as a means for providing a rotational force to the impeller 360 to be described later.

The impeller 360 receives a rotational force from the driving motor 340, and is discharged through the discharge nozzles 224 of each centrifugal purifier constituting the lower purifier 220 by using the suction force according to the rotation. Cutting oil is supplied to the injection nozzles 262 of the centrifugal clarifiers constituting the upper purifier 260. The impeller 360 is located on the flow path between the discharge nozzle 224 of each centrifugal purifier constituting the lower purifier 220 and the injection nozzle 262 of each centrifugal purifier constituting the upper purifier 260. .

The rotational force of the drive motor 340 is transmitted to the impeller 360 through the rotation shaft 350 passing through the center portion of the support 320. As the rotation shaft 350 penetrates the support 320, a portion of the rotation shaft may occupy a portion of the flow path 322 formed in the support 320. To this end, various sealing members (not shown) may be mounted to prevent the secondary cutting oil flowing through the flow path 322 from leaking to the outside through a gap between the support and the rotating shaft.

Meanwhile, the high pressure pump 330 may be further provided on the support 320 so that the secondary cutting oil discharged through the flow path 322 may be sent at a high pressure. The high pressure pump 330 is disposed between the flow paths 322 in communication with each discharge nozzle 264 of the upper purifier 260, and is operated by the drive motor 340. By the action of the high pressure pump 330, the secondary cutting oil is sent out at a high pressure and can be immediately used for cutting. The high pressure pump may consist of a trocoid gear pump.

The purification process of the cutting oil using the purification device of the present invention having the above configuration will be described with reference to FIG. 4. The disclosed purifier assumes a case where a high pressure pump is mounted.

If the cutting oil is stored in a reservoir (not shown) while the metal is being processed, the used cutting oil of the reservoir is lower (142) of the supply pipe 140 through the pipe by the pumping force of the pump (not shown). (Ⓐ). The used cutting oil injected into the supply pipe 140 at a constant pressure is dispersed and injected into the injection nozzle 222 of each centrifugal purifier constituting the lower purifier 220 through the upper part 146 of the supply pipe 140 (ⓑ ).

The used cutting oil injected into each of the centrifugal clarifiers constituting the lower purifier 220 at a predetermined pressure by the pump is subjected to a centrifugal process, and the purified primary cutting oil is discharge nozzle 224 of each centrifugal clarifier. The discharged through (ⓒ), the remaining chip in the purification process exits to the storage space 120 through the lower end 226 of each centrifugal purifier (ⓖ).

The primary cutting oil discharged through the discharge nozzle 224 of each centrifugal purifier of the lower purifier 220 is each centrifugal purifier constituting the upper purifier 260 by the suction force acting upon the rotation of the impeller 360. Is injected into the injection nozzle 262 (ⓓ). The first cutting oil injected into each centrifugal clarifier constituting the upper purifier 260 undergoes a purification process again while undergoing a centrifugal separation process. Through this process, the second coolant is discharged through the discharge nozzle 264 of each centrifugal purifier (ⓔ), and the remaining chips in the second purifying process are stored in the storage space 120 through the lower end 266 of each centrifugal purifier. Exit to (ⓗ).

The cutting oil injected into the lower purifier 220 by the pumping force of the external pump and then first purified, and injected into the upper purifier 260 by the rotary suction force of the impeller 360 and then purified secondly, is a high pressure pump. 330 is finally discharged to the outside of the device through the flow path 322 in a state of being boosted to a certain pressure (ⓕ). On the other hand, chips (ⓖ, ⓗ) that were generated during the first purification process and the second purification process and temporarily stored in the storage space 120 to the outside through the discharge port 160 formed in the lower portion of the storage container 100 Discharged (ⓘ). As described above, the purifying apparatus of the present invention purifies the used cutting oil while repeating such an operation to separate the used cutting oil into the secondary cutting oil and the chip.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be apparent that the present invention can be practiced with added features.

100: storage bin 120: storage space
140: supply pipe 160: discharge port
220: lower purifier 260: upper purifier
320: support 330: high pressure pump
340: drive motor 360: impeller

Claims (2)

Constant pressure is applied to the storage space 120 where the purified and leftover cutting oil is temporarily stored, and is vertically installed above the storage space 120 through the lower central portion and includes chips generated during the cutting process through the lower portion. A storage container 100 having a supply pipe 140 to be supplied to the discharge port, and a discharge port 160 formed at one side of the lower side to discharge the waste cutting oil temporarily stored in the storage space 120;
It consists of a plurality of centrifugal purifier each having an injection nozzle 222 and a discharge nozzle 224 to purify the cutting oil, each injection nozzle 222 of the centrifugal purifier is the supply pipe 140 A lower purifier 220 disposed in an annular shape with respect to the supply pipe 140 in communication with the upper opening 146 of the;
It is composed of a plurality of centrifugal purifier each having an injection nozzle 262 and a discharge nozzle 264 for secondary purification of the cutting oil, each injection nozzle 262 of the centrifugal purifier is the lower purifier 220 An upper purifier 260 disposed annularly at an outer upper point of the lower purifier 220 in a state of being in communication with the discharge nozzles 224 of each centrifugal purifier constituting the;
Located on the flow path between the discharge nozzle 264 of each centrifugal purifier constituting the upper purifier 260 and the injection nozzle 222 of each centrifugal purifier constituting the lower purifier 220, To generate the suction force according to each of the centrifugal purifiers constituting the upper purifier 260 for the first purified cutting oil discharged through the discharge nozzles 224 of the centrifugal purifiers constituting the lower purifier 220. An impeller 360 for supplying the injection nozzle 262;
A support 320 disposed above the storage container 100 is provided with a flow path 322 through which the second purified gas is discharged through the discharge nozzle 264 of each centrifugal purifier 260 of the upper purifier 260. )Wow;
A drive motor 340 axially connected to the impeller 360 by a rotation shaft 350 passing through a central portion of the support 320 and installed on an upper portion of the support 320; Cutting oil purification apparatus of a multi-stage centrifugal separation method comprising a. The method of claim 1,
The support 320 is a multi-stage centrifugal cutting oil purification apparatus, characterized in that the high-pressure pump 330 for sending the second purified coolant at high pressure through the flow path (322).

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