KR101021352B1 - Cutting oil filtering device - Google Patents

Abstract

The present invention provides a coolant filtering device in which a filter is drawn out on a fixed metal mesh so as to replace the filter paper so that an overload does not occur during the replacement process. The present invention for realizing this is empty inside and a tank is installed below, a metal mesh fixedly installed in the interior of the housing and a plurality of holes through the front, and is placed on the upper surface of the metal mesh It is configured to be wound around the take-up roller, and the other end is configured to be sandwiched between the take-out roller and the guide roller, the filter paper which is pulled out to the outside according to the rotation operation of the take-out roller, the shaft installed in the state penetrating the housing and the It is mounted on the front and rear of the shaft, respectively, and includes a pressing disc which presses the filter paper to contact the filter paper with the metal mesh upper surface. Are attached in the longitudinal direction with a predetermined distance apart, the outer peripheral surface of the pressing disc It is in direct contact, and whether the filter is characterized in that the packing member to seal the gap between the paper pressing disc and the filter is installed is further included.

Cutting oil, Filtering, Housing, Metal mesh, Filter paper, Draw roller, Push disk

Description

Coolant Filtering Device {CUTTING OIL FILTERING DEVICE}

The present invention relates to a coolant filtering device, and more particularly, to a coolant filtering device in which a filter is drawn out on a fixed metal mesh to replace a filter paper so that an overload does not occur during the replacement process.

In general, machining such as grinding, discharging, honing, etc., is formed by cutting metal to form a certain shape. In this process, since high heat is inevitably generated, cutting oil such as lubricating oil or cooling water is continuously used to reduce heating and cooling. Spray to the machining site.

Meanwhile, the cutting oil used for machining includes metal chips or foreign substances. Therefore, when reusing the cutting oil, the metal chips or foreign substances are removed through a filtering device and then reused.

However, the conventional coolant filtering device has a problem that the mesh belt is easily torn or damaged by the gear of the sprocket when an overload occurs in the process of moving the mesh belt for filter replacement. Breakaway accidents occurred frequently.

In addition, the conventional cutting oil filtering device has a disadvantage in that the front and rear ends of the mesh belt are easily sag due to the weight of the cutting oil, so that the cutting oil does not pass through the filter and immediately flows into the tank, thereby effectively filtering the cutting oil.

Accordingly, an object of the present invention for solving the above problems is to provide a coolant filtering device that does not cause an overload in the replacement process by replacing the filter paper by drawing only the filter over a fixed metal mesh. have.

Another object of the present invention is to provide a coolant filtering device that can prevent leakage of coolant during the filtering process.

The present invention for achieving the above object is a cutting oil filtering device for filtering the cutting oil used in the machining, the housing is empty inside and the tank is installed below, fixed to the inside of the housing and a plurality of front Holes are formed through the metal mesh, and the upper surface of the metal mesh and the end is configured to be wound on the take-up roller, the other end is configured to fit between the take-out roller and the guide roller is drawn out to the outside according to the rotation operation of the take-out roller A filter paper in operation, a shaft installed through the housing, and a pressing disc mounted on the front and the rear of the shaft and pressing the filter paper to contact the filter paper with the upper surface of the metal mesh. Pressing the filter paper on the surface and a plurality of induction rods for inducing the filter paper withdrawal They are attached in the longitudinal direction to the predetermined distance apart, the outer peripheral surface of the pressing disc is characterized in that the packing member for direct contact with the filter paper and sealing the gap between the pressing disc and the filter paper further installed.

The packing member is formed with an insertion portion for fitting the outer circumferential surface of the pressing disc to the upper end, it is preferable that the lower end has a contraction space therein and is composed of an elastic portion elastically in close contact with the filter paper.

Cutting oil filtering device according to the present invention implements the effect of preventing the overload occurs in the replacement process by removing the filter over the fixed metal mesh so that the replacement of the filter paper.

In addition, the present invention achieves a synergistic effect that can prevent the leakage of cutting oil during filtering through a packing member for blocking the gap between the pressing disk and the filter paper.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 3 are views showing the configuration of the cutting fluid filtering device to be implemented in the present invention.

As shown in FIGS. 1 to 3, the coolant filtering apparatus 100 of the present invention includes a housing 10 having a hollow interior in a rectangular shape. A discharge port 16 is provided in the housing 10, and the discharge hole 16 discharges the cutting oil used for machining through the inlet 18 into the housing 10. A tank 14 is provided at the lower end of the housing 10, and the tank 14 stores the cutting oil that has been filtered.

In the interior of the housing 10, a metal mesh 20 having a plurality of holes 22 formed therein is installed to cross the inside of the housing 10. The metal mesh 20 supports the filter paper 24 to be described later, and passes the filtered cutting oil through the filter paper 24 to the tank 14 below through the holes 22. At this time, the center of the metal mesh 20 is preferably configured to sag more than a predetermined depth below the both ends so that the cutting oil can be stored above a certain level.

The water level detecting sensor 31 is installed in the housing 10 in which the metal mesh 20 is installed. The water level sensor 31 outputs a detection signal to a controller (not shown) when the level of cutting oil reaches a predetermined level or more, and the controller outputs a control signal to a motor 80 to be described later through an applied detection signal. To control the driving of the motor 80.

The filter paper 24 is placed on the upper surface of the metal mesh 20. The filter paper 24 is a means for filtering foreign matter such as metal chips contained in the cutting oil supplied to the housing 10, one end of which is attached to a winding roller 26 installed at an upper end of one side of the housing 10. To be wound several times, the other end is configured to pass between the take-out roller 28 and the idle roller (29).

The take-out roller 28 is connected to the motor 80 and the belt 31 to rotate by receiving the power of the motor 80 and wind the filter paper 24 placed on the upper surface of the metal mesh 20. It will be pulled out to the outside. That is, the filter paper 24 is blocked by the foreign matter, such as metal chips contained in the cutting oil through the holes formed in the filter paper in the process of repeatedly filtering the cutting oil is reduced the filtering efficiency of the cutting oil Bar (that is, the problem that the cutting oil does not pass through the filter paper 24, but gradually accumulate on the filter paper), in the present invention by driving the take-out roller 28 every predetermined time is placed on the upper surface of the metal mesh 20 By allowing the filter paper 24 to be withdrawn, the replacement of the filter paper 24 can be automatically performed. The motor 80 is preferably to be automatically driven through the control unit for receiving the detection signal output from the above-described water level sensor 33 to output a control signal.

On the outer circumferential surface of the take-out roller 28, a plurality of take-out guide bars 30 are attached in the longitudinal direction with a predetermined distance apart. The withdrawal induction rods 30 are brought into direct contact with the filter paper 24 being withdrawn and rotated with the filter paper 24 pressed, so that the filter paper 24 being withdrawn is withdrawn. ) And guide roller 29 to be easily entered. At this time, it is more preferable that the thread 30a is formed at the outer diameter of the lead-out rod 30.

A shaft 32 is installed through the center of the housing 10, and a plurality of pressing disks 34 are fitted in front and rear of the outer diameter of the shaft 32. The pressing disc 34 is pressed against the upper surface of the metal mesh so that the filter paper 24 does not rise above the cutting oil in the process of pressing the filter paper 24 placed on the upper surface of the metal mesh 20 to filter the cutting oil. Let's go. When the filter disc 24 is pulled out while the filter disc 24 is pressed while the filter disc 24 is pressed, the pressing disc 34 rotates about the shaft 32 and does not interfere with the extraction of the filter paper 24. In addition, when the filter paper 24 is pulled out through contact with the filter paper 24, the shaft 32 is rotated.

2, the driven gear 60 is coupled to the outer diameter of the shaft 32, and the driven gear 60 is engaged with the drive gear 62 coupled to the outer diameter of the above-mentioned take-out roller 28. It is configured to receive the rotational force of the take-out roller 28 to force the rotation of the shaft 32 and the pressing disk 34 coupled to the outer diameter of the shaft 32 to draw out the filter paper 24 more Make it work smoothly.

A natural drain 35 is formed through the pressing disc 34, and the natural drain 35 is naturally drained to the outside when the level of cutting oil continuously rises due to a failure of the device.

The packing member 36 is fitted to the outer circumferential surface of the pressing disc 34. The packing member 36 is in direct contact with the filter paper 24 and prevents the cutting oil from leaking into the gap between the filter paper and the pressing disc.

6 and 7, the packing member 36 is divided into an insertion part 38 formed at an upper end and a sealing part 40 formed at a lower end.

The insertion portion 38 is a place where the outer circumferential surface of the pressing disc 34 is fitted, and protrusions 38a are formed on the inner surface of the insertion portion so that the packing member 36 is not easily separated from the pressing disc 34.

The sealing part 40 is in direct contact with the filter paper 24 and seals the gap between the filter paper 24 and the pressing disc 34. The sealing part 40 is formed by forming a contraction space 40a therein. It is to be elastically in close contact with the filter paper (24).

Hereinafter, the operation of the coolant filtering device according to the present invention will be described.

First, the cutting oil used for machining is discharged into the housing 18 through the inlet 18 and the discharge port 16 connected to the inlet 18, and then passes through the filter paper 24. Various foreign matters such as this are filtered and then stored in the tank 14 installed under the housing 10 via the metal mesh 20.

On the other hand, when the cutting oil is accumulated above the filter paper 24 for the life of the filter paper 24, the level sensor 33 detects this and outputs a detection signal to the controller, and the controller is controlled by the motor 80 again. The signal is output to drive the motor 80.

With the driving of the motor 80, the take-out roller 28 connected to the motor 80 and the belt 31 is driven to rotate in the forward direction, in this process the take-out roller 28 and the guide roller 29 The filter paper 24 sandwiched therebetween is driven over the take-out roller 28 to pull out the filter paper 24 in one direction so that the new filter paper wound on the take-up roller 26 may be positioned on the metal mesh 20. It becomes possible. At this time, the filter paper 24 that is being pulled out is pulled out in a state in which the induction rods 30 installed on the outer diameter of the drawing roller 28 are in direct contact with each other and the filter paper 24 is pressed. The paper 24 can be pulled out more efficiently between the take-out roller 28 and the guide roller 29.

Meanwhile, in order to prevent the filter paper 24 from being injured, the pressing disc 34 which is pressed against the filter paper 24 rotates around the shaft 32 according to the drawing operation of the filter paper 24 and the filter paper 24 is rotated together. We do not interfere withdrawal of (24). In particular, by keeping the packing member 36 fitted on the outer circumferential surface of the pressing disc 34 in direct contact with the filter paper 24, leakage of cutting oil can be prevented.

1 is a side view showing the configuration of a cutting oil filtering apparatus according to a preferred embodiment of the present invention.

FIG. 2 is a plan view showing the configuration of the cutting fluid filtering device shown in FIG. 1; FIG.

FIG. 3 is a front view showing the configuration of the cutting fluid filtering device shown in FIG. 1. FIG.

Figure 4 is a three-dimensional view showing the extraction of the pull-out roller shown in FIG.

5 is a use state diagram of the withdrawal roller shown in FIG.

6 is a cross-sectional view showing an extract of the packing member shown in FIG.

7 is a use state of the packing member shown in FIG.

<Description of the symbols for the main parts of the drawings>

10 housing 20 metal mesh

24: filter paper 26: take-up roller

28: withdrawal roller 30: withdrawal induction rod

32: shaft 34: pressing disc

36: packing member 38: inserting portion

40: sealing part

Claims (2)

In a coolant filtering device for filtering coolant used in machining, A housing 10 in which the inside is empty and a tank 12 is installed below; A metal mesh 20 fixedly installed in the housing 10 and having a plurality of holes 22 penetrated therein; It is placed on the upper surface of the metal mesh 20 and one end is configured to be wound around the take-up roller 26, the other end is configured to be sandwiched between the take-out roller 28 and the guide roller 29 of the take-out roller 28 A filter paper 24 which draws out to the outside in accordance with the rotation operation; A shaft 32 installed in a state penetrating the center of the housing 10 horizontally; A pressing disc 34 which is mounted to the front and rear of the shaft 32 and presses the filter paper 24 to press-contact the filter paper 24 to the upper surface of the metal mesh 20; The withdrawal rollers 28 are attached to the circumferential surface in the longitudinal direction with a plurality of draw-in guide rods 30 guided in a state in which the filter paper 24 is pressed in a predetermined distance; Cutting oil, characterized in that the outer peripheral surface of the pressing disk 34 is in contact with the filter paper 24 and the packing member 36 for sealing the gap between the pressing disk 34 and the filter paper 24 further installed. Filtering device. The method of claim 1, The packing member 36 is; Insertion portion 38 is formed at the upper end to the outer peripheral surface of the pressing disk 34 is fitted, the lower end has a contraction space (40a) and the sealing portion 40 is elastically in close contact with the filter paper 24 Coolant filtering device, characterized in that consisting of).

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