KR20010047440A - Device for filtering oil in filter tank of strip grinding line - Google Patents

Abstract

PURPOSE: An oil filtering device of a filter tank of a strip abrasion equipment is provided to protect a case and to save time and effort by forming a lower front end of a filter case round and to prevent separation of a filter net coupled to the filter case even though the filter net is used for a long time. CONSTITUTION: An oil filtering device of the filter tank of the strip abrasion equipment includes a case(10) of a rectangular shape to have a predetermined width, a filter net(12) covered on the case, and a pipe connected to an oil pipe(16) of an upper portion of a tank and deposited in oil through the inside of the case. A side of the filter case is arranged on the oil pipe to be located in a movement direction of a conveyer. A lower portion of the filter case is bent round in an arc shape.

Description

Device for filtering oil in filter tank of strip grinding line}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter tank of a swarf treatment facility for treating a swarf generated during a polishing operation by a strip grinder, and more particularly, to an oil filter device installed in a filter tank to filter swarf and oil.

In general, the coil subjected to annealing is subjected to a polishing line to remove defects on the surface of the strip, which is then sent to the next process, which is performed by strip grinders arranged along the line. The generated swarf is sent to the swarf processing unit through a chute installed on the bottom of the grinder.

The swarf generated during strip polishing is a mixture of coolant oil used for polishing and fine chips polished from the strip, and then aggregated together into a cotton form. The swarf sent to the swarf processing facility is transferred to oil and fine chips through screens and filters. Each can be separated and reused.

The above-mentioned swap processing apparatus includes a swab conveyor tank for firstly filtering swarf and oil discharged from the chute, a filter tank having a filter connected to the conveyor tank to separate fine swarf and oil, and oil filtered from the filter tank. It consists of an oil tank for storing water.

Thus, the swarf and coolant oil generated during strip grinding are discharged through the chute into the swarf conveyor tank, which is first filtered through the base screen installed in this tank, and the fine swarf and oil is sent to the filter tank where it passes through the filter. The oil is separated and the oil is sent to the oil tank and the fine swarf is sent to the reprocessing process via the bottom conveyor.

The filter is composed of a case of a rectangular frame shape and a filter network overlying the case so as to achieve a predetermined width so as to filter the swarf from the oil and suck out only the clean oil to the oil tank.

However, in the conventional structure described above, when the filter is inclined due to the stiffness of the swarf attached to one side of the filter network, the filter case is inclined to the conveyor installed at the bottom of the tank because the filter is disposed in the width direction of the tank. When bumping, the case was bent or severely broken.

In addition, as the filter network is covered by the filter case is simply fastened with a binding strap, etc., the binding strap is loosened for a long time and cannot perform the filter role, and thus the maintenance work is frequently performed.

Accordingly, the present invention has been made to solve the problems described above, by bending the lower end of the filter case rounded to protect the case so as not to contact the conveyor even if the filter case is inclined and time and effort due to the case repair It is an object of the present invention to provide an oil filter device for a strip polishing equipment filter tank, which can be saved.

It is another object of the present invention to provide an oil filter device of a strip polishing equipment filter tank that is capable of firmly coupling a filter network to a filter case to prevent the filter network from leaving for a long time.

1 is a partially cutaway perspective view showing a filter tank having a filter device according to the present invention;

2 is a perspective view showing an oil filter device according to the present invention;

3 is a sectional view of an oil filter device according to the present invention;

4 is a detailed view of portion A of FIG. 2 according to the present invention;

5 is a cross-sectional view taken along the line B-B of Figure 4 in accordance with the present invention.

Explanation of symbols on the main parts of the drawings

10: filter case 12: filter network

16: oil pipe 30: air pipe

32: injection nozzle 34: air pipe

36: air hose 50: binding unit

52 cover 54 rotating shaft

60: latch 62: pressing part

64: handle 66: spring

70, 72, 74: solenoid valve 76: timer

The filter according to the present invention for achieving the object as described above, is provided in the filter case is composed of a binding portion for simple and secure fixing of the filter network, and a removal unit for separating the swap attached to the filter network.

In addition, the direction of the filter is matched with the direction of the conveyor, and the lower end of the filter case is rounded so that it is characterized in that it does not come into contact with the conveyor when the filter is rotated.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a partially cutaway perspective view showing a filter tank in which a filter device according to the present invention is installed, and FIG. 2 is a perspective view showing an oil filter device according to the present invention.

According to the above drawings, the filter tank 114 connected to the conveyor tank 112 to separate the fine swap and oil is provided with a conveyor 118 for transporting the swap at the bottom, the filter tank 114 at the top The oil pipe 122 connected to the pump 120 on the outside is arranged in two rows, and the oil pipe 122 is provided with a filter for filtering oil at an interval.

The filter consists of a case 10 having a rectangular frame shape and a filter net 12 covered with the case 10 so that a pipe 16 connected to an oil pipe 122 in the upper portion of the tank is formed. It is structured to suck oil by being deposited in oil through the case 10.

A plurality of guide frames 14 are installed vertically on the front and rear of the case 10 to support the case 10 and the filter net 12.

Here, the filter according to the present invention is arranged in the oil pipe 122 so that the side of the filter case 10 is placed in the moving direction of the conveyor 118, and the lower part of the filter case 10 is rounded in an arc shape. It is structured.

In Figure 2 is well illustrated the installation structure of the filter case, in order to match the longitudinal direction of the oil pipe 122 and the filter case 10 by installing a bending bracket 18 on the upper filter case 10 It is positioned on the side of the oil pipe 122, and the fixing bracket 20 attached to the upper portion of the oil pipe 122 is installed to fasten the bending bracket 18 to the fixing bracket 20 by bolts 22 to fix it. .

Pipe 16 is connected to the side of the oil pipe 122 is introduced into the filter case 10 through the bending bracket 18.

Meanwhile, as shown in FIG. 2, the removing part of the present invention is formed at a predetermined interval on the air pipe 30 and the air pipe 30 which are densely arranged inside the filter case 10, and thus the filter case 10 is disposed on the filter case 10. An air pipe 32 connected to an air nozzle 32 for injecting air to the front and rear of the filter net 12 to be attached and an air pump (not shown) outside the filter tank 114 and installed along the oil pipe 122. 34 and an air hose 36 connecting the air pipe 34 and the air pipe 30.

The air pipe 34 is fastened by fastening with a binding plate 38 and a bolt to the fixing bracket 20 installed on the oil pipe 122.

In addition, the binding unit 50 according to the present invention is to securely attach the filter net 12 to the filter case 10, as shown in Figure 3, the binding formed outwardly curved along the upper periphery of the filter case 10 The cover 50 and the cover 52 formed to be curved so as to cover the filter net 12 placed on the binding portion 50 is rotatably coupled to the hinge shaft on the front and rear of the upper portion of the filter case 10, It consists of a locking means for fixing the 52 in the closed state.

The locking means is a rotary shaft 54 protruding and installed in the filter case 10 above the cover 52, one end is rotatably fitted to the rotary shaft 54, the center portion is formed to be curved in the same way as the cover 52 To form a pressing portion 62, the end of which is fitted between the clasp 60 with the handle 64 and the tip of the rotating shaft 54 and the clasp 60 to elastically press the clasp 60 against the cover 52. It is made of an elastic spring (66).

According to the embodiment of the present invention, it is preferable to manufacture the clasp 60 and the spring 66 integrally by winding the tip of the clasp 60 in a circular shape to serve as a spring 66.

Meanwhile, the two oil pipes 122 and the air pipes 34 installed inside the filter tank 114 are provided by the solenoid valves 70, 72 and 74 installed on one side of the filter tank 114 and the timer 76 for operating the solenoid valves. Cross-actuated to perform the oil suction action and backwashing action, the operation of the present invention will be described with reference to the above point.

As shown in FIG. 1, the swarf generated during the strip grinding is collected in the filter tank 114 through the chute 110, where only the oil is filtered and the caught oil passes the oil pipe 122 to the pump. It is sent to the oil tank 116 through.

Here, the filter inside the filter tank 114, the filter case 10 forming the filter is disposed at right angles to the conveying direction of the conveyor 118, the lower portion is also curved in an arc shape, so that the filter case 10 is shaken The lower edge portion of the filter case 10 is in contact with the conveyor 118 below the filter tank 114.

Therefore, it is possible to prevent damage due to contact between the filter case 10 and the conveyor 118.

On the other hand, the filter net 12 is installed on the surface of the filter case 10 can be easily mounted to the filter case 10 by the clasp 60, as shown in Figure 4 first latch 60 Rotate upwards and place the upper end of the filter net 12 in the binding portion 50 formed in the filter case 10 in a state in which the cover 52 is rotated about the hinge axis and opened.

Next, the open cover 52 is rotated to cover the tip of the filter net 12 placed on the binding unit 50, and the filter net 12 is pressed. In this state, the handle 64 of the latch 60 is closed. By rotating the latch 60, which is rotated upward by using the bottom, the pressing portion 62 formed in the center of the latch 60 is placed on the cover 52.

The clasp 60 is a spring 66 formed at the front end of the rotation shaft 54, and the clasp 60 is pressed against the front end because the clasp 60 is fully rotated by the elastic force of the spring 66 62 prevents the cover 52 from being rotated by pressing the cover 52, and fixes the filter net 12 placed between the cover 52 and the binding part 50.

Therefore, the filter net 12 can be firmly bound to the filter case 10 only by the latch 60 rotation.

In this case, if you want to replace the filter net 12 to rotate the latch 60 to the contrary to the above to remove the external force to press the cover 52, the cover 52 to open the filter net 12 Easy to remove

When the pump is operated while the filter network 12 is installed in the filter case 10 as described above, the swarf is filtered by the filter network 12, and the clean oil introduced into the filter case 10 is piped ( 16 will be able to send to the oil tank (116).

Here, according to the present invention, two oil pipes 122 to which each oil pipe 16 of the filter is connected are installed in the filter tank 114, and solenoid valves 70 and 72 installed in each oil pipe 122 are provided. Are cross-actuated to perform oil suction and backwashing.

First, as shown in FIG. 5, the solenoid valve 74 and the supply solenoid valve 70 of the oil pipe 122 installed in the air pipe 34 are closed for a predetermined time according to the operation of the timer 76. While the suction solenoid valve 72 of the oil pipe 122 is opened, the oil introduced into the filter case 10 is sucked through the oil pipe 16 and sent to the oil tank 116.

At this time, the other oil pipe 122 has a backwashing action. On the contrary, the solenoid valve 74 of the air pipe 34 and the supply solenoid valve 70 of the oil pipe 122 are opened. Then, air and oil are supplied through the air pipe 34 and the oil pipe 122 while the suction solenoid valve 72 of the oil pipe 122 is closed.

The air supplied through the air pipe 34 is sent to the air pipe 30 installed inside the filter case 10 through the air hose 36, and the filter network through the nozzle 32 formed in the air pipe 30. It is sprayed to (12).

The oil introduced into the oil pipe 122 according to the opening of the supply solenoid valve is introduced into the filter case 10 through the oil pipe 16 to the filter tank 114 through the filter network 12 together with the air injected. It will erupt.

Therefore, the swarf adhering to the filter net 12 is separated by air and oil injected into the filter net 12 to clean the filter net 12.

As described above, according to the oil filter device of the strip polishing equipment filter tank according to the present invention, it is possible to quickly replace and install the filter net, thereby reducing work time and effort, and to easily remove the swarf stuck to the filter net. This can extend the life of the filter net.

In addition, it is possible to prevent damage to the filter case by improving the installation structure of the filter.

Claims (3)

The conveyor is connected to the conveyor tank, and the conveyor for transporting the swap is installed in the lower part, and the upper part of the oil pipe connected to the pump outside the filter tank is arranged in two rows, and the filter for filtering oil is arranged in the oil pipe at regular intervals. In the filter tank which can separate fine swarf and oil, The filter is made of a rectangular frame-shaped case, a filter net overlaid on the case, and a pipe connected to an oil pipe at the top of the tank to be deposited in oil through the inside of the case. The oil filter device of the strip polishing equipment filter tank, characterized in that arranged in the oil pipe to be placed in the moving direction, the lower part of the filter case is curved in an arc shape. According to claim 1, Air pipes are arranged closely inside the filter case, Air nozzles for injecting air to the front and rear of the filter net is formed at a predetermined interval on the air pipe attached to the filter case, the outside of the filter tank Strip grinding, characterized in that the air pipe is connected to the air pump is installed along the oil pipe, and the air hose connecting the air pipe and the air pipe further comprises a removal unit for removing the swap by injecting air into the filter net Equipment for oil filter of filter tank. According to claim 1 or claim 2, wherein the binding portion is formed to be curved outwardly along the upper periphery of the filter case, and can be covered by a hinge shaft on the front and rear of the upper filter case rotatably coupled to the filter net placed on the binding portion. A cover which is curved so as to be formed, a rotating shaft protruding from the filter case above the cover, one end of which is rotatably fitted to the rotating shaft, and the center portion is formed in the same shape as the cover so as to form a pressing part, and the end of the cover has a handle, and the end of the rotating shaft. And an elastic spring inserted between the latch and the clasp to elastically press the clasp against the cover, further comprising a binding part for fixing the filter net.