KR100931660B1 - Swapping remover of reverse tank - Google Patents

Abstract

The present invention relates to a swap tank removal apparatus of a reverse tank for removing swarf, which is an abrasive by-product generated during polishing of a strip in a stainless cold rolled strip polishing process, from a degreasing solution of a reverse tank.

The present invention provides a non-degraded slope provided in the reverse tank; A swarf scraper having a plurality of blades for lifting the swarf from the degreasing solution accumulated in the reverse tank along the inclined surface and having chains and sprockets for rotating the blade in an endless track; A rotating motor which rotates the swarf of the swarf scraping portion to drive the blade to scrape the swarf from the lower side of the inclined surface to the upper side; And a swap removal unit having a rotary scraper for separating and removing the swarf scraped up by the blades from the inclined surface exit side of the reverse tank from the blade.

According to the present invention, it is possible to maintain the degreasing solution of a good quality from which the swarf is removed, thereby improving the strip degreasing quality and shortening the degreasing solution replacement time, thereby obtaining an excellent effect of improving work productivity.

Cold Rolled Stainless Steel, Strip Grinding, Swarf Eliminator, Blade, Degreasing Solution

Description

Apparatus For Removing Swarfs From A Riverse Tank

The present invention relates to an apparatus for removing swarf, which is a by-product of the strip generated during polishing of a strip in a stainless cold rolled strip polishing process, from the degreasing solution of a reverse tank. The present invention relates to a reverse tank swapping removal apparatus which is capable of ensuring the quality of the spray solution by eliminating the need for frequent replacement, and effectively preventing the closing of the spray nozzle, thereby reducing the production cost and improving the work productivity.

In general, in the case of producing a strip in a stainless steel cold rolling polishing process, as shown in Figure 1, after polishing the strip (S), the polishing surface is degreased to completely remove foreign substances, thereby proceeding to the next process, The defect is prevented from occurring.

To this end, in the strip degreasing process, when the strip S passes, the rinse tank 200 is sprayed onto the upper and lower surfaces of the strip to wash, and a plurality of brushes for washing the upper and lower surfaces of the strip S on the rear side thereof. A brush tank 300 having the brush rolls 310 of is disposed.

The rinse tank 200 is provided with a plurality of pairs of squeeze rolls 210, and spray nozzles 220 spraying the rinse solution on the upper and lower surfaces of the strip S are provided with the strip S. Abrasive debris is removed from the surface. In addition, a plurality of pairs of squeeze rolls 315 are provided inside the brush tank 300, spray nozzles 320 spraying a rinse solution on the upper and lower surfaces of the strip S, and a plurality of brush rolls 310. ) Are secondly cleaned to completely remove the abrasive foreign matter from the surface of the strip (S).

And the lower portion of the brush tank 300 is provided with a reverse tank 350 and the pump 360 for collecting and resupplying the spray degreasing solution (W) injected into the strip (S) of the brush tank 300 Resupply to the spray nozzle 320 provided therein.

However, in the conventional degreasing process as described above, swarf (K), which is an abrasive by-product generated when the strip S is polished, is mixed in the reverse tank 350 to remain and spray-sprayed to the strip S again. .

In this case, if the swarf cannot be removed from the spray degreasing solution in the reverse tank 350, the swarf chip is sprayed again when the surface of the strip is contaminated or when the spray solution is pumped using the pump 360 of the reverse tank 350. The nozzle 320 was blocked to cause a problem in the installation.

Therefore, conventionally, in order to solve such a problem, the spray solution must be replaced before its service life, and thus, frequent solution changes result in shortening the operating time of the strip production line, resulting in a decrease in the strip yield. And by spraying the contaminated degreasing solution again, foreign matter remained on the strip surface, which caused additional problems of deteriorating strip rolling quality.

The present invention is to solve the conventional problems as described above, the object of the swarf chip remaining in the reverse tank can be easily and automatically removed unattended automatically to ensure the quality of the spray solution for the degreasing action of the solution frequently The present invention provides an improved reverse tank swapping device for improving strip degreasing quality as well as improving productivity by reducing the replacement time of the stripping solution.

In another aspect, the present invention effectively prevents the closing of the spray nozzle by the swarf to reduce the maintenance cost of the equipment as well as to increase the uptime of the equipment to reduce the production cost and to increase the strip yield. An improved reverse tank swapping device is provided.

In order to achieve the above object, the present invention, in the apparatus for removing the swarf which is a by-product of polishing generated during the polishing of the strip in the stainless cold rolled strip polishing process from the degreasing solution of the reverse tank,

A non-degraded slope provided on the reverse tank;

A swarf scraper having a plurality of blades for lifting the swarf from the degreasing solution accumulated in the reverse tank along the inclined surface and having chains and sprockets for rotating the blade in an endless track;

A rotating motor which rotates the swarf of the swarf scraping portion to drive the blade to scrape the swarf from the lower side of the inclined surface to the upper side; And

A swarf removal unit having a rotary scraper for separating and removing the swarf scraped up by the blade from the inclined surface exit side of the reverse tank; removing the swarf from the degreasing solution of the reverse tank, including: Provide a swap removal device.

The swarf scraping portion also includes a drive shaft rotatably mounted to the reverse tank at an upper side of the inclined surface and a pair of drive sprockets connected to the drive shaft, and rotatable to the reverse tank at a lower side of the inclined surface. And a pair of driven brackets connected to the driven shaft and the driven shaft mounted to the driven shaft, wherein the plurality of blades are mounted on the plurality of chains that are caught by the driving sprocket and the driven sprocket. .

And the present invention is preferably the swarf removal portion is a gate is formed on the top exit side of the inclined surface, the rotary scraper is rotatably mounted to the reverse tank to cover the gate, the rotary scraper is the end portion of the blade The scraper is contacted to scrape the swarf from the blade, and the rotary scraper is the reverse portion, characterized in that the middle portion is bent and the lower end is in contact with the blade inclined downward to open the gate through the upward movement operation of the blade Provide a tank swapping device.

In addition, the present invention is preferably the reverse tank has a V-shaped structure in which the inclined surface is concave in the center, and equipped with a drain valve and a drain pipe at the lower end of the inclined surface, for supplying degreasing solution to the upper side of the reverse tank And a pipe and a pump are mounted to supply the degreasing solution to the spray nozzle of the brush tank.

As described above, according to the present invention, the swarf chips remaining in the reverse tank can be easily and automatically removed unattended, thereby ensuring the quality of the spray solution for the degreasing action, thereby avoiding frequent replacement of the solution. Therefore, it is possible to maintain the degreasing solution of a good quality from which the swarf is removed, thereby improving the strip degreasing quality and improving the productivity by reducing the degreasing solution replacement time.

In addition, according to the present invention, it is possible to effectively reduce the maintenance cost of the equipment by effectively preventing the clogging of the spray nozzle by the swarf, and also to reduce the production cost by increasing the equipment uptime according to the shortening of the maintenance time. . Therefore, it is possible to increase the strip production per unit time and to further improve the productivity.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

The swarf removal apparatus 1 of the reverse tank according to the present invention removes the swarf K, which is an abrasive byproduct generated when polishing the strip S in the stainless steel cold rolled strip polishing process, from the degreasing solution W of the reverse tank 350. It is an apparatus for doing so.

The swap removal apparatus 1 of the reverse tank according to the present invention has a non-egressed inclined surface 5 provided on the lower side of the reverse tank 350, as shown in FIG. The inclined surface 5 has a V-shaped structure with a concave center, and the reverse tank 350 has a structure in which a drain valve 7a and a drain tube 7 are mounted at the lower center of the inclined surface 5. Therefore, the degreasing solution W accumulated in the reverse tank 350 may be discharged to the outside through the drain valve 7a and the drain pipe 7.

And the reverse tank 350 is connected to the spray nozzle 320 of the brush tank 300 by mounting the degreasing solution supply pipe 14 and the pump 16 on the upper side from the upper side in the reverse tank 350 The degreasing solution W is supplied to the spray nozzle 320. Therefore, through the arrangement structure, the degreasing solution supply pump 16 may spray the degreasing solution W from which the swarf K is precipitated and removed to the strip S in the brush tank 300.

And the swap tank removal apparatus 1 of the reverse tank according to the present invention is to raise the swarf (K) along the inclined surface 5 from the degreasing solution (W) accumulated in the reverse tank (350) The swarf scraping portion 20 includes a plurality of blades 25 connected at both ends thereof to a pair of chains 22a and 22b, respectively, to rotate the blades 25 in an infinitely orbital manner. It has a structure with chains 22a and 22b and sprockets 27a and 27b.

That is, the swarf scraping portion 20 is a drive shaft 32 rotatably mounted to the reverse tank 350 on the upper side of the inclined surface 5 and a pair of drive sprockets connected to the drive shaft 32 ( A driven shaft 34 and a pair of driven sprockets 27b connected to the driven shaft 34, the driven shaft 34 being rotatably mounted to the reverse tank 350 at a lower side of the inclined surface 5. Include.

The drive shaft 32 and the driven shaft 34 penetrates the reverse tank 350 so as to be rotatable in a sealed state, and a pair of driving shaft 32 and the driven shaft 34 are respectively mounted on both ends of the drive shaft 32 and the driven shaft 34. Each of the drive sprockets 27a and the driven sprockets 27b is provided with chains 22a and 22b so that a plurality of chains 22a and 22b are disposed at both ends of the drive shaft 32 and the driven shaft 34, These chains 22a and 22b have a structure in which a plurality of blades 25 are fixed in parallel to the drive shaft 32 and the driven shafts 34 so as to be coaxial with the drive shaft 32 and the driven shaft 34. .

Therefore, the chains 22a and 22b fastened to the driving shaft 32 and the driven shaft 34 arranged as described above are kept in a state substantially parallel to the inclination angle of the inclined surface 5, as shown in FIG. The blades 25 arranged in an inclined state and the blades 25 connected to the chains 22a and 22b have edges contacting the inclined surface 5 closely contact the inclined surface 5, and as shown in FIG. 3, the inclined surface 5. Are arranged to move along.

In addition, the present invention moves the blades 25 of the swarf scraping portion 20 along the inclined surface 5 to drive the blade 25 to scrape up the swap K from the lower side of the inclined surface 5 to the upper side. The rotary motor 40, the rotary motor 40 is fixed to the outside of the reverse tank 350 and the drive shaft protruding in the state that the center axis is sealable to the outside of the reverse tank (350) 32 to rotate the drive shaft (32).

Accordingly, the rotation of the drive shaft 32 rotates the drive sprockets 27a and rotates the driven sprockets 27b through the chains 22a and 22b caught in the drive sprockets 27a while the chains 22a and ( The blades 25 suspended on 22b) are moved in an orbit along the inclined surface 5. In this process, the blades 25 move in close contact with the inclined surface 5 from the lower end to the upper end of the inclined surface 5, and the inclined surfaces 5 of the swarfs K precipitated and collected in the reverse tank 350. ) Is scraped up to the top side.

In addition, the swarf removal apparatus 1 of the reverse tank according to the present invention separates and removes the swarfs K scraped up by the blades 25 from the inclined surface 5 of the reverse tank 350 from the blades 25. It includes a swarf removal unit 50 having a rotary scraper 52 to make.

That is, the swarfs K scraped up along the inclined surface 5 by the blades 25 are separated from the blades 25 through the rotary scraper 52 of the swarf removing unit 50 and provided in the reverse tank 350. The drop is removed to the outside through the 55.

In addition, as shown in FIG. 4, the swarf removing unit 50 has a gate 55 formed in the reverse tank 350 near the top exit side of the inclined surface 5 to cover the gate 55. The rotary scraper 52 is mounted to the reverse tank 350 so as to be rotatable through the hinges 57.

Thus, the rotary scraper 52 is normally kept closed with the gate 55, and the tip portion 52a is pushed out of the blade 25 in contact with the blade 25, as shown in FIG. As described above, the swarf K is scraped off while being pushed outward to open the gate 55.

In addition, such a rotary scraper 52 is bent from the middle portion of the rotary scraper downwardly in contact with the blade 25 in a downwardly inclined state more easily from the gate 55 through the upward movement operation of the blade 25. The gate 55 is opened and then the gate 55 is closed again after scraping off the swarf K. At this time, the stopper 60 is mounted at the center of the cage 55 to allow the scraper 52 to return to its proper position. . As shown in FIG. 4, the stopper 60 is fixed to the outer surface of the reverse tank 350 across the gate 55.

Therefore, the scraper 52 is always returned to the home position and the lower end thereof can scrape and remove the swap K from the blade 25. It can be seen that the rotary scraper 52 is approximately the same length as the blade 25.

When the swab removal apparatus 1 of the reverse tank according to the present invention configured as described above is introduced into the reverse tank 350 together with the swarf K, which is a strip polishing by-product, the swarf K is in its own weight. It precipitates from the degreasing solution W, and keeps it settled in the center part of the inclined surface 5 of the reverse tank 350. As shown in FIG.

In such a state, the degreasing solution pump 16 located at the upper side of the reverse tank 350 pumps the degreasing solution W having a low concentration of the swab K to the spray nozzle 320 so that the strip S may be discharged. Degreasing is performed.

Meanwhile, the swap K settled in the center of the inclined surface 5 of the reverse tank 350 is discharged from the reverse tank 350 by the operation of the rotary motor 40, which is driven by the operation of the rotary motor 40. Rotation of the drive shaft 32 rotates the drive sprockets 27a, and rotates the driven sprockets 27b through the chains 22a and 22b engaged with the drive sprockets 27a. The blades 25 suspended on the 22a) and 22b are moved in an orbit along the inclined surface 5.

Therefore, the blades 25 moving along the inclined surface 5 are moved in close contact with the inclined surface 5 from the lower end to the upper end of the inclined surface 5, and the swarf that is precipitated and gathered inside the reverse tank 350 ( K) is scraped up to the upper side of the inclined surface (5).

The swarfs K scraped up along the inclined surface 5 by the blades 25 are separated from the blades 25 through the rotary scraper 52 of the swarf removing unit 50 and externally through the gate 55. It is dropped and removed, and it collects in the swab base 70 provided in the outer side. In addition, the rotary scraper 52 from which the blade 25 is removed by scraping the blade 25 is separated from the lower end of the scraper 52 by moving upward from the lower end of the scraper 52. 3 is closed as shown in FIG. 3, and in contact with the blade 25 rising along the inclined surface 5 again to remove the swarf K from the blade 25 while opening the gate 55, Once removed, it is closed again, and this operation is performed repeatedly.

Through this process, the swarf (K) is automatically unattended and removed from the degreasing solution (W) in the reverse tank (350). The provided drain valve 7a can be opened and removed from the reverse tank 350 through the drain pipe 7 to fill and use a new degreasing solution. Therefore, the swarf K can be easily removed from the degreasing solution W to always maintain a good degreasing solution, and can be easily replaced with a fresh degreasing solution.

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited to such a specific structure. Those skilled in the art will be able to variously modify or change the embodiments of the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. Nevertheless, it will be apparent that all such modifications or design modifications to such simple embodiments will clearly fall within the scope of the present invention.

1 is a side view showing a stainless cold rolled strip polishing process according to the prior art;

Figure 2 is a perspective view showing a partially cut swap device of the reverse tank according to the present invention;

Figure 3 is a cross-sectional view showing in detail the gate portion of the swap removal unit provided in the swap removal device of the reverse tank according to the present invention;

Figure 4 is a side view of the swap removal unit provided in the reverse tank in the swap removal device of the reverse tank according to the present invention in the direction "A" of Figure 2 from the outside of the reverse tank;

5 is an explanatory view showing a state in which the swarf is scraped off from the blade in the swap removal unit provided in the swap removal device of the reverse tank according to the present invention.

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

1 .... Swapping removal apparatus of reverse tank according to the present invention

5 .... slope 7 ..... drain pipe

7a ... Drain valve 14 .... Piping for supply of degreasing solution

16. Degreasing solution supply pump 20 .... Swapping scrap

22a, 22b ... chain 25 .... blade

27a ... driven sprocket 27b .... driven sprocket

32 .... driven shaft 34 .... driven shaft

40 .... rotary motor 50 .... Swarf remover

52 .... scraper 55 .... gate

60 .... stopper 70 .... Swapping

200 ... Rinse tank 210,315 ... Squeeze roll

220,320 .... Spray Nozzle 300 .... Brush Tank

350 .... Reverse Tank 360 .... Pump

K .... swarf S ... strip

W .... degreasing solution

Claims (4)

An apparatus for removing swarf, which is an abrasive by-product generated during polishing of a strip in a stainless cold rolled strip polishing process, from the degreasing solution of a reverse tank, A non-degraded slope provided on the reverse tank; A swarf scraper having a plurality of blades for lifting the swarf from the degreasing solution accumulated in the reverse tank along the inclined surface and having chains and sprockets for rotating the blade in an endless track; A rotating motor which rotates the swarf of the swarf scraping portion to drive the blade to scrape the swarf from the lower side of the inclined surface to the upper side; And a swab removal unit having a rotary scraper for separating and removing the swarf scraped up by the blades from the inclined surface exit side of the reverse tank; removing the swarf from the degreasing solution of the reverse tank. The swarf scraping portion includes a drive shaft rotatably mounted to the reverse tank at an upper side of the inclined surface and a pair of drive sprockets connected to the drive shaft, and rotatable to the reverse tank at a lower side of the inclined surface. And a pair of driven brackets connected to the driven shaft and the driven shaft, wherein a plurality of blades are mounted on the plurality of chains that are engaged by the driving sprocket and the driven sprocket. delete 2. The rotating scraper of claim 1, wherein the swarf removing portion has a gate formed at an upper exit of the inclined surface, and the rotary scraper is rotatably mounted to the reverse tank so as to cover the gate. And scrape off the swarf from the blade, and the rotary scraper is the reverse tank is characterized in that the gate is opened through the upward movement operation of the blade by contacting the lower portion is inclined downward to the blade. Swapping removal device. According to claim 1, The reverse tank has a V-shaped structure in which the inclined surface is concave in the center, the drain valve and the drain pipe is mounted on the lower end of the inclined surface, the degreasing solution supply pipe on the upper side of the reverse tank And a pump mounted to supply the degreasing solution to the spray nozzle of the brush tank.

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