KR101701405B1 - Wire cutting machine for regenerating filter device and method of regenerating filter the same - Google Patents

Abstract

The present invention relates to a filter regeneration device for a wire cutting machine, and a regenerating method of the filter device for the wire cutting machine using the same. More specifically, the present invention relates to the filter regeneration device for the wire cutting machine which regenerates a filter to separate a metal powder generated in the process of processing a workpiece from cooling water sprayed on the workpiece while processing the workpiece through the wire cutting machine, and the present invention also relates to the regenerating method of the filter device for the wire cutting machine using the same. The present invention was invented to solve problems of necessities mentioned above, and the present invention provides the regenerating filter device for the wire cutting machine which removes the metal powder piled inside the filter in order to regenerate a used filter, and also provides the regenerating method of the filter using the same.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a filter reproducing apparatus for a wire cutter,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter regeneration apparatus for a wire cutter and a filter regeneration method using the same. More particularly, the present invention relates to a filter regeneration method for a wire cutter, And a filter regeneration method for a wire cutter using the same.

Generally, a wire cutter is a machine that processes a workpiece by causing a discharge between a wire and a workpiece. The wire cutter generates heat between the wire and the workpiece during machining, and the coolant is injected into the wire and workpiece to cool it.

On the other hand, fine metal powder is generated when the workpiece is processed through the wire. Since the metal powder is mixed with the cooling water sprayed on the workpiece and discharged, if it is discharged as it is, the natural environment is harmed, so it is discharged after filtration or reused.

For this purpose, the cooling water is filtered through the filter and then discharged. During the passage of the cooling water through the filter, the metal powder is filtered by the filter and only the cooling water is discharged. When this process is repeated, the metal powder is gradually accumulated inside the filter for filtering the metal powder from the cooling water. When such a metal powder is accumulated in a certain amount of the filter, the metal powder adheres to the surface of the filter, thereby lowering the filtration efficiency of the cooling water.

In order to solve this problem, it is necessary to change the filter at a predetermined cycle, but the filter is expensive and can not be replaced in a proper period.

Korean Patent Laid-Open Publication No. 10-2016-0040996 (entitled "Wire Discharge Processor Having Prediction Function of Replacement Time of Filter"),

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a filter regenerating apparatus for a wire cutter which removes metal powder accumulated inside a filter so that a used filter can be reused, and a filter regeneration method using the same do.

According to an aspect of the present invention, there is provided a method of regenerating a filter for a wire cutter, comprising: (a) drying a filter through a drying unit for heating the filter; And (b) separating the metal powder in the filter from the filter through a desorption unit for applying vibration to the filter dried through the step (a) and discharging the metal powder to the outside.

(c) removing the remaining metal powder in the filter through a backwashing unit that introduces water into the filter having been subjected to the step (b) and discharges the inflow water to the outside.

(c) comprises the steps of: (c-1) placing the filter having been subjected to the step (b) inside the water tank so as to be immersed in water; And (c-2) a step of introducing the water outside the filter into the filter through the suction member connected to the connection pipe of the filter and providing the high-pressure suction force, and discharging the introduced water together with the remaining metal powder in the filter .

After the step (c), the step (e) includes the step of determining whether the filter is good or not by using an inspection unit that measures the pressure value of water supplied and filled with water.

(b) includes the steps of: (b-1) mounting the filter on the fastening member of the tear-off portion inclined at a predetermined angle; (b-2) providing vibration to the filter mounted on the fastening member through the vibration member of the desorption section; And (b-3) reciprocally rotating the filter through a rotating member of the desorption unit.

Further, the filter regenerating apparatus for a wire cutter according to the present invention includes: a drying unit for providing heat to remove moisture from a filter; And a desorption section for providing vibration to the filter having the moisture removed through the drying section so that the metal powder in the filter is separated from the filter and discharged to the outside.

And a backwashing unit for introducing water into the filter and discharging the inflow water to the outside so as to remove residual metal powder in the filter from which the metal powder is discharged to the outside through the desorption unit.

The backwashing unit is connected to a water tank filled with water and a filter connected to the filter accommodated in the water tank. The backwashing unit introduces water outside the filter into the filter through high pressure suction force, and sucks the incoming water. And a suction member to be discharged to the outside.

A water supply pipe for supplying water to the inside of the filter, and an inspection unit for judging whether or not the filter having the metal dust removed through the measurement member for measuring the pressure value of water supplied to the filter through the water supply pipe is good.

The separating unit includes a main body, a base plate installed to be inclined at a predetermined angle to the main body, a fastening member disposed at an upper portion of the base plate to engage with the filter, and a separator disposed at a lower portion of the base plate, And a vibration member for vibrating the base plate and the coupling member.

The tearing portion may include a rotary member disposed inside the body to rotate the base plate and coupled with the base plate, and a pair of spaced apart spaced apart spacers And the rotary member reciprocally rotates by an interval between the pair of limit switches.

The filter recycling apparatus for a wire cutter according to the present invention can discharge the metal powder inside the used filter to the outside, so that the filter can be reused without being discarded, and the filter replacement cost can be reduced.

Further, the filter regenerating apparatus for a wire cutter according to the present invention can primarily remove metal powder from the inside of the filter through a drying unit and a tear-off unit, and remove the remaining metal powder that has not yet been removed through the back- Therefore, most of the metal powder in the filter can be discharged to the outside.

1 is a schematic view showing a configuration of a filter recycling apparatus for a wire cutter according to an embodiment of the present invention;
Fig. 2 is a conceptual view showing the drying unit of Fig. 1
Figs. 3 and 4 are views showing the desorption section of Fig. 1
Fig. 5 is a conceptual view showing the backwashing section of Fig. 1
Fig. 6 is a conceptual view showing the inspection unit of Fig.
FIG. 7 is a conceptual view showing the dehydrating section of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a filter reproducing apparatus for a wire cutter according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view showing the construction of a filter recycling apparatus for a wire cutter according to an embodiment of the present invention, FIG. 2 is a conceptual view showing a drying unit of FIG. 1, FIGS. 3 and 4 are views showing a desorption unit of FIG. 1 FIG. 5 is a conceptual diagram showing the backwashing unit of FIG. 1, FIG. 6 is a conceptual view showing the inspection unit of FIG. 1, and FIG. 7 is a conceptual view of the dehydrating unit of FIG. 1

1 to 7, a filter regeneration apparatus 1000 for a wire cutter according to an embodiment of the present invention includes a drying unit 100, a desorption unit 200, a back washing unit 300, an inspection unit 400, And a dewatering unit (500).

First, the filter 10 includes an upper plate 11 and a lower plate 13 to be coupled to the outer ends of the upper plate 11 and the lower plate 13, And an upper plate 11 and a lower plate 12 which are coupled to an inner end of the hollow 10 of the upper plate 11 and the lower plate 13, An outer filter 18 disposed on one surface of the outer plate 15 opposed to the inner plate 16 and an outer filter 15 disposed between the inner plate 16 and the outer plate 15, An inner filter 19 disposed on one surface of the inner plate 16 facing the inner tube 16, and a connecting tube 12 through which the used cooling water flows.

The drying unit 100 includes a chamber 110 and a heater 120. The chamber (110) receives the filter (10). The heater 120 is disposed inside the chamber 110 and generates heat to remove moisture from the filter 10. [

The drying unit 100 may further include a blower 130. The blower 130 is disposed behind the heater 120 and provides wind to the heater 120 to circulate the heat generated in the heater 120 into the chamber 110. Thus, the drying unit 100 can generate hot air through the heater 120 and the blower 130 to dry the filter 10.

When the filter 10 is dried by the drying unit 100, the outer filter 18, the inner filter 19 and the metal powder are dried together. As a result, the metal powder adheres to the outer filter 18 and the inner filter 19, and the property that the metal powders are bundled together can be easily separated from the outer filter 18 and the inner filter 19.

The tear unit 200 includes a main body 210, a base plate 220, a fastening member 230, a vibration member 240, a rotating member 250, and a limit switch 260. The body 210 has a space formed therein. The base plate 220 is rotatably coupled to the body 210. The base plate 220 is arranged to be inclined at a predetermined angle from the main body 210. The base plate 220 includes a first plate 221 having a rotation axis and formed in a disc shape to be rotatably coupled to the main body 210, a support bar 222 coupled to the first plate 221, And a second plate (223) which is coupled and includes an insertion hole (211) into which the connection tube (12) of the filter (10) is fitted. The fastening member 230 is disposed on the upper portion of the base plate 220. The fastening member 230 may be configured in the form of a round bar or a circular pipe. The fastening member 230 is inserted into the hollow 10 and the inner plate 16 of the filter 10 to fix the filter 10. For example, a screw thread is formed on the fastening member 230 and the filter 10 inserted through the nut can be pressed and fixed. The vibrating member 240 is disposed between the main body 210 and the base plate 220 and is coupled to the bottom surface of the base plate 220. The vibration member 240 vibrates the base plate 220 and the coupling member 230 and the filter 10 together. The rotating member 250 is disposed inside the main body 210 and rotates the base plate 220. A pair of limit switches 260 are installed at the main body 210 at regular intervals. For example, a pair of limit switches 260 is installed adjacent to the rotation axis of the rotary member 250 or the base plate 220. The pair of limit switches 260 sets the rotation range of the rotary member 250. That is, the rotary member 250 reciprocally rotates through the set range of rotation of the limit switch 260. For this purpose, a detection protrusion 224 may be formed on the rotation axis of the first plate 221.

The tearing off part 200 is installed on the base plate 220 which is inclined by a predetermined angle through the fastening member 230 and vibrates through the vibration member 240 and is reciprocated in a predetermined range, Separates the metal powder introduced into the inner filter (10) from the outer filter (18) and the inner filter (19). The separated metal powder is discharged to the outside through the connection pipe (12) formed in the top plate (11). That is, when the metal powder is separated from the outer filter 18 and the inner filter 19 through the vibration of the vibration member 240, the tearing unit 200 removes the metal in the filter 10 by the inclined base plate 220 The powder is collected toward the connection pipe 12, and the metal powder introduced into the connection pipe 12 is discharged to the outside. The rotary member 250 rotates the filter 10 oscillated by the oscillating member 240 in a predetermined range to accelerate the separation of the metal powder from the outer filter 18 and the inner filter 19, So that the metal powder can flow into the connection pipe 12 and be discharged to the outside.

The backwashing section 300 includes a water tank 310 and a suction member 320. The water tank 310 is filled with water and receives the filter 10. The suction member 320 is coupled to the coupling tube 12 of the filter 10 and provides a high pressure suction force within the filter 10. The suction member 320 introduces a high pressure suction force into the filter 10 accommodated in the water tub 310 to thereby introduce the water filled in the water tub 310 into the filter 10. Specifically, when the suction member 320 provides a high-pressure suction force to the inside of the filter 10, the water in the water tank 310 flows through the hollow 10 formed in the outer plate 15 and the inner plate 16, ). ≪ / RTI > The residual metal powder adhering to the outer filter 18 and the inner filter 19 is separated during the inflow of water from the water tub 310 into the filter 10 by the suction member 320. [ The metal powder is mixed with water, sucked by the suction member 320, and discharged to the outside.

The filter recycling apparatus 1000 for a wire cutter according to the present invention discharges the metal powder in the filter 10 to the outside through the drying unit 100 and the desorption unit 200, The metal powder that has not yet been removed through the filter 10 can be removed through the filter 10 to remove the metal powder from the filter 10 to the outside.

The inspection unit 400 includes a water supply pipe 410 and a measurement member 420. The water supply pipe 410 supplies water supplied from the outside to the inside of the filter 10. To this end, the end of the water supply pipe 410 is fastened to the connection pipe 12. The measuring member 420 is installed on the water supply pipe 410. The measurement member 420 measures the pressure value of water supplied to the filter 10 through the water supply pipe 410. In other words, the measuring member 420 measures the pressure of water flowing inside the water supply pipe 410. For example, the measuring member 420 may be constituted by a pressure gauge to measure the pressure of water flowing inside the water supply pipe 410. In this way, the inspection unit 400 checks the amount of metal powder in the filter 10 by measuring the pressure of the water in the filter 10, and determines whether the metal powder is good or not. Specifically, when the water supply unit 410 supplies water to the inside of the filter 10 and the inside of the filter 10 is filled with water, the pressure inside the water supply pipe 410 rises. At this time, the measuring member 420 measures the pressure inside the water supply pipe 410. The inspector 400 determines that the metal powder in the filter 10 is not separated from the outer filter 18 and the inner filter 19 when the measured pressure value is higher than the reference value. On the other hand, if the measured pressure value is lower than the reference value, the inspection unit 400 determines that the metal powder is separated from the outer filter 18 and the inner filter 19 and removed. As described above, the inspection unit 400 judges whether the product is good or not, and the filter 10, which has been judged to be defective, moves to the drying unit 100 or the backwashing unit 300 and performs the metal powder removing process again.

The dewatering unit 500 rotates the filter 10 to discharge the moisture of the filter 10 to the outside. The dewatering unit 500 includes a dewatering vessel 510 which the filter 10 receives and rotates together with the filter 10 and a motor 520 which rotates the dewatering vessel 510 in either direction.

Hereinafter, a process of performing an example of the method of reproducing the filter 10 through the filter reproducing apparatus 1000 for a wire cutter configured as described above with reference to Figs. 1 to 7 will be described.

First, the filter 10 is dried through the drying unit 100 heating the used filter 10 (step (a)). Specifically, the used filter 10 is accommodated in the chamber 110. Then, electricity is supplied to the heater 120 to heat the interior of the chamber 110 to heat the filter 10. At this time, heat generated in the heater 120 through the wind generated in the blower 130 can be circulated in the chamber 110.

Next, the metal powder in the filter 10 is separated from the filter 10 through the desorption unit 200 that vibrates the dried filter 10 through the step (a), and the separated metal powder flows into the connection unit (Step (b)). Specifically, the hollow 10 of the filter 10 is inserted and fixed to the fastening member 230 of the base plate 220, which is inclined at a predetermined angle (step (b-1)). At this time, the connection pipe 12 of the filter 10 is fitted in the insertion hole 211 of the base plate 220. When the fixing of the filter 10 is completed, the filter 10 mounted on the coupling member 230 is vibrated through the vibration member 240 coupled to the bottom surface of the base plate 220 (step (b-2)). The base plate 220 is reciprocally rotated through the rotation member 250 in the range in which the pair of limit switches 260 are installed while the filter 10 is vibrated (step (b-3)).

Next, the residual metal powder in the filter 10 is removed through the backwashing unit 300, which introduces water into the filter 10 having performed the step (b) and discharges the inflow water to the outside (Step (c)). Specifically, the filter 10 is placed inside the water tank 310 so as to be immersed in water (step (c-1)). The filter 10 is connected to the connection pipe 12 of the filter 10 so that the water outside the filter 10 flows into the filter 10 through the suction member 320 which provides a suction force of high pressure, Together with the residual metal powder therein (step (c-1)).

(Step (e)) of inspecting whether the filter 10 is good or not through the inspection unit 400 which measures the pressure value of the supplied water by supplying water to the inside of the filter 10. Specifically, the water supply pipe 410 is connected to the connection pipe 12 of the filter 10, and water is supplied into the filter 10. When the inside of the filter 10 is filled with water, the pressure value of water supplied from the water supply pipe 410 to the filter 10 is measured through the measuring member 420. If the pressure value measured through the measuring member 420 is equal to or lower than the reference value, it is determined that the product is defective if it is higher than the reference value. the filter 10 determined to be defective in step (e) (step (a)) or (step (c)) is performed again to remove the metal powder in the filter 10.

the filter 10 determined to be good in step (e) is rotated through the dewatering unit 500 to remove moisture (step (d)).

On the other hand, the filter 10 performing the step (c) ((d)) may be omitted ((d)).

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention. . It is therefore to be understood that the invention is not to be limited to the specific embodiments shown and described herein, but is to be accorded the widest scope consistent with the spirit of the invention as defined by the appended claims and all equivalents and alternatives falling within the scope of the invention.

10: Filter 11: Top plate
12: connector 13: bottom plate
14: hollow 15: outer plate
16: inner plate 17: through hole
18: outer filter 19: inner filter
1000: Filter regenerator for wire cutter
100: drying section 110: chamber
120: heater 130: blower
200: desorption section 210: main body
220: base plate 230: fastening member
240: oscillating member 250: rotating member
260: Limit switch 300:
310: Water tank 320: Suction member
400: Inspection unit 410: Water supply pipe
420: measuring member 500: dehydrating part

Claims (11)

An outer plate disposed between the upper plate and the lower plate and having a plurality of through holes formed between the upper plate and the lower plate and having a plurality of through holes arranged between the inner ends of the hollows of the upper plate and the lower plate, A filter including an inner plate formed on an inner surface of the inner plate, an outer filter disposed on one surface of the outer plate facing the inner plate, an inner filter disposed on one surface of the inner plate facing the outer plate,
A drying unit for providing heat to remove moisture of the filter;
A base plate having a main body, a base plate including a first plate which is inclined at a predetermined angle to the main body and has a disc shape, a second plate which has insertion holes through which the coupling bars are inserted, And a vibration member disposed at a lower portion of the base plate to provide vibration to the base plate and the coupling member so that metal powder in the filter is separated from the filter, A pair of limit switches provided on the main body to set the rotation range of the rotation member, and a detection protrusion formed on the rotation axis of the first plate, wherein the rotation member includes: And a pair of limit switches Tallies;
The water is filled in the inside of the filter and is connected to a connection pipe of the filter accommodated in the water tank. The water in the outside of the filter is introduced into the filter through high pressure suction force, and the inflow water is sucked and discharged to the outside A backwashing unit comprising an suction member for removing residual metal powder in the filter from which the metal powder is discharged to the outside through the desorption unit;
An inspection unit which comprises a water supply pipe for supplying water to the inside of the filter and a measuring member for measuring a pressure value of water supplied to the filter through the water supply pipe, And
And a dehydrating section for rotating the filter by a motor to discharge moisture of the filter to the outside. delete delete delete delete delete delete delete delete delete delete

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