KR100879329B1 - Apparatus for removing bubble of resin solution with strip coating organic - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a bubble removing device for a resin solution for an organic coated steel sheet that not only removes droplets but also prevents the resin solution from solidifying. The device according to the present invention uses a drive motor installed on the top of the solution tank. And a driving unit for rotating the stirring shaft and the driving tube, a removing unit for removing foreign substances and bubbles while rotating according to the rotation of the driving tube, and a compression unit for squeezing foreign substances and bubbles collected in the sponge.

Plated steel sheet, organic film, resin solution, foam, removal

Description

Apparatus for removing bubble of resin solution with strip coating organic}

1 is a schematic view showing a connection structure of a bubble removing device in general.

Figure 2 is a cross-sectional view showing the overall structure of the bubble removing apparatus according to the present invention.

3 is a plan sectional view inside the solution tank shown in AA ′ of FIG. 2.

Figure 4 is a partially enlarged view showing the main configuration of the bubble removing apparatus according to the present invention.

5 is a cross-sectional view showing a removing part of the bubble removing device according to the present invention.

Explanation of symbols on the main parts of the drawings

11: solution tank 21: guide shaft

22: inner gear 31: support tube

32: pinion pulley 33: connection pulley

34: rotating shaft 35: shaft tube

37: sponge 38: insertion tube

42: injection block 44: injection nozzle

48: iron core 49: compression plate

53: support rod 54: wire

The present invention relates to a facility for surface-treating steel sheets, and more particularly, to an apparatus for removing bubbles generated during the production of a resin solution used for organic coating on a plated steel sheet.

In general, plating of a steel sheet is an operation of coating a surface of the steel sheet with a material that maintains a stable state or a material that suppresses elements of the surface reaction of the steel sheet in order to prevent the steel sheet from being oxidized and corroded.

After such plating, the produced product is subjected to post-treatment to coat the organic film to ensure phosphate coating, chromium oxide coating or anti-finger print according to the characteristics.

As shown in FIG. 1, conventionally, a resin solution is supplied from a mixing tank 1 for mixing and storing a resin solution of a zinc-nickel (Zn-Ni) plated steel sheet. The return pipe 6 is piped so that the feed pipe 4 is supplied to the coating machine 5 using the supply pipe 4 and circulated to the circulation tank 2 again.

As described above, the circulation structure of the resin solution supplies the solution component constituting the solution and the resin solution from the mixing tank 1 to the circulation tank 2, and the circuit is returned from the coating machine 5 to the circulation tank 2. Due to the drop of water due to the water level difference such as the stirrer inside the ration tank 2 and the vortex phenomenon due to the use of the stirrer, the foam is excessively generated, making it impossible to use the stirrer.

In addition, the solids in the solution are increased due to the stagnation of the resin solution in the saturation tank (2), and since the foam overflows the upper part of the saturation tank (2) and contaminates the tank, the foam is washed with water. Washing with water causes high concentrations of wastewater.

In addition, the foam adheres to the return pipe from the solution supply pipe and the coating machine of the mixing tank installed at the upper part of the circulating tank, thereby acting to block the supply pipe and the return pipe, and bubbles in the solution cause bubbles to burst when the solution is applied. Is generated.

Patent application No. 2000-0054465 filed as a device that can solve these problems has proposed a configuration to drop the solution drop in the upper portion of the resin solution to the bottom.

However, even in the present invention, the problem that the foreign matter buried in the drop of the solution continuously causes a new drop of the solution as the bubble bursts, there is no way to solve, and there is a problem that the gel (Gel) on the resin solution solidified.

Accordingly, the present invention has been proposed to solve the problems of the prior art, and an object thereof is to provide a bubble removing device for a resin solution for an organic coating steel sheet that not only removes a solution drop but also prevents the resin solution from solidifying.

Defoamer of the present invention for achieving the above object,                     

The drive is rotated by a drive motor installed on the top of the solution tank and the stirring blade is installed at the end, and the drive is rotated and folded by receiving the rotational force of the drive motor by a plurality of gears connected to the stirring shaft. A drive unit including a pipe, a buckle that is fixed to the drive tube and rotates together, and an inner gear that is movable along a guide shaft erected inside the solution tank and formed with a rack gear in an inner diameter thereof;

One side is fixed to the drive tube and the other side is supported by the inner gear, the power transmission line for transmitting the rotational force is rotated by meshing with the inner gear, and the foam removal unit rotated by the transmission force transmitted from the power transmission line Consists of removing the foreign matter and bubbles while rotating in accordance with the rotation of the drive tube; And

The support rod is fixed to the inner gear and a rack rod having a rack gear formed at the front end thereof, and the resin solution filtered by the foam removal unit is rotated only when the rack gear is engaged with the rack gear and pulls the foam removal unit with a wire. It includes a compression unit consisting of the injection unit to be injected through.

Here, the power transmission line installed in the support tube of the removal unit,

A plurality of rotation shafts vertically penetrating the support tube, a pinion pulley fixed to one of the plurality of rotation shafts and engaged with the inner gear, a connection pulley respectively fixed to the remaining rotation shafts among the plurality of rotation shafts, and the pinion pulley. It consists of a belt that connects and the connecting pulley or connecting pulleys,

The bubble removing unit fixed to the support tube,

A shaft tube fixed perpendicularly to the support tube and inserted into the rotary shaft, a sponge fixed to the lower end of the shaft tube and having a plurality of protruding rings arranged on an outer circumferential surface thereof; An insertion tube to which the iron core is inserted and fixed, a compression plate fixed to the wire inside the support tube and fixed to the lower end of the sponge through the insertion tube, and the compression plate is seated and fixed to the lower end of the insertion tube. A circular block, a flexible pipe connected to the circular block, a fixed plate fixed to the lower side of the flexible pipe, an injection block screwed to an end of the rotary shaft, an injection pipe installed in the injection block, and an injection pipe It includes a nozzle bar having a plurality of injection nozzles connected to, and removes bubbles in the solution tank in accordance with the rotation of the support tube.

And the injection unit,

A bevel shaft that is rotated while being supported by a plurality of bearing blocks provided on the upper side of the support tube, a pulley shaft that is engaged with the bevel shaft and the plurality of bevel gears, and one end of which is fixed to the other lower surface of the support tube It is preferable that the spring is fixed to the spring tube, and one end is fixed to the pulley shaft and the wire via the support tube and the other end is fixed to the fixing ring.

In addition, the guide plate is fixed to the upper surface of the other side of the support tube is installed, it is preferable that the guide channel on which the guide plate is seated is formed along the inner gear.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.                     

Figure 2 is a cross-sectional view showing the overall structure of the bubble removing apparatus according to the present invention, Figure 3 is a cross-sectional plan view inside the solution tank shown in AA 'of Figure 2, Figure 4 is a bubble removing apparatus according to the present invention A partial enlarged view showing the main configuration of the.

The solution tank 11 has a resin solution supply tube 12 and a recovery tube 13 through which the resin solution is supplied communicate with the upper surface, and a solution discharge tube 14 through which the resin solution is supplied to the coater through the lower portion thereof.

The present invention according to the rotation of the drive unit 100 and the drive tube 17 for rotating the stirring shaft 16 and the drive tube 17 by using a drive motor 15 installed on the upper portion of the solution tank (11). The removal unit 200 to remove the foreign matter and bubbles while rotating, and the compression unit 300 to squeeze the foreign matter and bubbles collected in the sponge.

Here, the driving unit 100 is connected to the gearbox 18 installed on the upper portion of the solution tank 11, the driving motor 15 connected to the gearbox, and the rotating shaft of the driving motor 15 through coupling and agitation. Stirring shaft 16 for rotating the blade 19, the drive tube 17 is rotated by receiving the rotational force of the drive motor 15 by a plurality of gears connected to the stirring shaft 16, and the drive tube 17 And a plurality of guide shafts 21 vertically erected in the interior of the solution tank 11 and the guide shaft 21 and fixed to the beret 20 and rotated together, and positioned in the solution tank 11. It consists of an inner gear (22).

Inside the gearbox 18, a first gear 23 fixed to the stirring shaft 16, a transmission shaft 24 supported at both ends by bearings provided on the upper and lower surfaces of the gearbox 18, and a transmission shaft thereof. A connecting shaft coupled to the second gear 25 and the third gear 26 coupled to the first gear 23 and the first gear 23, and the fourth gear 27 engaged to the third gear 26 is coupled (28) and driven gear (28a) which are meshed with the fourth gear (27) and installed on the outer circumferential surface of the drive tube (17) are incorporated.

Accordingly, the rotation of the stirring shaft 16 and the rotation of the drive tube 17 are to rotate in the opposite direction.

Stirring shaft 16 is coupled to a bearing block provided inside the cover 29, the seal sealing the cover and the bearing block in the lower portion.

And the drive tube 17 is rotated while being supported by a bearing installed on the upper portion of the solution tank 11, the drive tube 17 is made of a folding type is possible to change the length, the lower portion of the bearing block and bub ( 20) is installed.

A plurality of guide shafts 21 erected in the vertical direction, the same direction as the drive tube 17 is installed along the inner edge of the solution tank (11).

The inner gear 22 inserted into the plurality of guide shafts 21 is located inside the solution tank 11 to form a rack gear along the inner diameter. In addition, a guide channel is formed along the inner gear 22 on the lower side of the rack gear, and the guide plate 30 to be described later is seated.

As shown in FIG. 5, the removal unit 200 includes a support tube 31 having one side fixed to the driving tube 17 and the other side guided to the inner gear 22, and an inner gear 22 of the driving unit 100. It is composed of a power transmission line that is rotated by being coupled to the rotational force to transmit the rotational force, and a bubble removing unit that is rotated by the transmission force transmitted from the power transmission line.

Here, the other side of the support tube 31 is fixed to the guide plate 30 is provided with a guide roller on the upper surface. The guide plate 30 is seated on the guide channel of the inner gear 22 and the guide roller is rotated in contact with the inner upper surface of the guide channel.

The power transmission line installed in the support pipe 31 is connected to the pinion pulley 32 and the connection pulley 33 and pinion pulley 32 respectively fixed to a plurality of rotary shafts vertically penetrating the support pipe 31. It consists of a belt which connects the pulley 33 or the connection pulley 33 to each other.

The pinion pulley 32 is fixed to the pinion gear meshed with the rack gear of the inner gear 22 on the upper side, the pulley is coupled to the lower side of the pinion gear.

And the connection pulley 33 is connected to the pulley and the belt is a plurality of pulleys are installed on the upper side of the rotation shaft 34, the pulley of the neighboring pinion pulley 32 or through the pulley and belt of the connecting pulley 33 By being connected, the rotation of the pinion pulley 32 is transmitted through the belt so that all the rotating shafts 34 are rotated at the same time.

The bubble removing unit is fixed to the support tube 31 perpendicularly and the shaft 35 is inserted into the rotary shaft 34, a plurality of ring brackets 36 are sequentially fixed to the lower end of the shaft tube 35 and Insertion pipe 38 through the sponge 37, a plurality of ring brackets and sponge 37 and the rotary shaft 34 is inserted, and the rotary shaft 34 is sequentially positioned at the lower end of the insertion tube 38 A circular block 39, a flange and an expansion tube 40, a fixing plate 41 fixed to the lower side of the expansion tube 40, and an injection block 42 screwed to an end of the rotating shaft 34; , A nozzle bar 45 having an injection pipe 43 installed in the injection block 42 and a plurality of injection nozzles 44 connected to the injection pipe 43.

Here, the cover block 46 is disposed between the shaft tube 35 and the support tube 31, and the cover block 46 is provided with a plurality of through passages through which wires to be described later are passed. Are interconnected.

And the fixing ring 47 is coupled to the upper end of the insertion pipe (38). The fixing ring 47 is connected to the other end of the wire, which will be described later, and the compression spring 48 is inserted between the fixing ring 47 and the cover block 46. In addition, the fixing ring 47 penetrates the insertion pipe 38 and is connected to the compression plate 49 to compress the sponge 37 as the fixing ring 47 is raised.

A plurality of iron cores 50 are inserted into and fixed to the outer circumference of the insertion tube 38, and the plurality of iron cores 50 protrude outward through the sponge 37.

The sponge 37 has a compression spring 51 having both ends supported between the ring bracket and the circular block 39 therein, and a plurality of protruding rings 52 are arranged on the outer circumferential surface thereof.

Since the compression plate is seated on the circular block 39 and the lower end of the sponge 37 is fixed, the insertion pipe 38 and the sponge 37 are rotated, but the fixing ring 47 is not caused to rotate.

On the other hand, the upper side of the injection block 42 is formed with a seating hole into which the fixed plate 41 is inserted, so that the injection block 42 also rotates with the rotation of the fixed plate 41 rotated in accordance with the rotation of the rotary shaft 34. Rotates at the same time.

The compression unit 300 rotates only when the support rod 53 fixed to the inner gear 22 and the support rod 53 is pulled to pull the wire 54 so that the resin solution filtered by the bubble removing unit is nozzled. It consists of an injection unit to be injected through 44.

At the end of the support rod 53, a rack rod 55 in which a rack gear is formed perpendicular to the support rod 53 is installed.                     

The pinion gear meshed with the rack gear of the rack rod 55 is fixed to the bevel shaft 56 described later.

The injection unit includes a bevel shaft 56 which rotates while being supported by a plurality of bearing blocks installed on the upper side of the support pipe 31, a pulley shaft 57 which is engaged with the bevel shaft 56 by a plurality of bevel gears. , The spring spring tube 58 is fixed to the other side of the support tube 31 and one end is fixed to the pulley shaft 57, and one end is fixed to the pulley shaft 57 and the other end is fixed to the fixing ring 47. Consisting of wires.

The wire 54 is guided by a plurality of support rollers 59 installed in the support tube 31, and in the middle of the wire 54, two other wires 54 connect the two binding holes 60. Bound through, the other wire 54 and the wire 54 is bound is inserted into the support tube 31 while being supported by the support roller 59.

The wire 54 and the other wire 54 inserted into the support tube 31 are arranged to branch through the through passage of the cover block 46 as described above, and the ends thereof are fixed rings 47, respectively. It is fixed to).

The bubble removing device according to the present invention configured as described above has the following actions.

When the stirring shaft 16 is rotated by operating the driving motor 15, the stirring shaft 16 rotates in the forward direction, and the driving is connected to the stirring shaft 16 through a plurality of gears inside the gearbox 18. The tube 17 is rotated in the reverse direction.

As the stirring shaft 16 rotates, the stirring blades 19 rotate to stir the resin solution inside the solution tank 11.

And the beret also rotates with the rotation of the drive tube 17, the drive tube 17 is rotated while moving up and down according to the water level of the resin solution foldable.

In addition, the rotation of the driving tube 17 causes the support tube 31 to rotate, and the support tube 31 is rotated while being guided to the guide channel of the inner gear 22.

Accordingly, the pinion pulley 32 engaged with the rack gear of the inner gear 22 rotates, and the pinion pulley 32 and the connection pulleys connected by the belt rotate at the same time.

The rotation shaft 34 rotates according to the rotation of the pinion pulley 32 and the connection pulley, and the fixing plate 41 fixed to the lower end of the rotation shaft 34 also rotates together, and the rotation of the fixing plate 41 rotates. The injection block 42 also rotates together.

On the other hand, when the support pipe 31 rotates along the guide channel of the inner gear 22, the pinion gear of the bevel shaft 56 is engaged with the rack gear of the rack rod 55, and starts to rotate from that moment. . As the bevel shaft 56 rotates, the pulley shaft 57 connected through the bevel gear rotates, and the pulley shaft 57 rotates to wind the main spring of the mainspring spring 58. Then, the wire 54, one end of which is fixed to the pulley of the pulley shaft 57, is wound around the pulley and simultaneously pulls the wire 54 and the other wires.

Pulling the wire 54 and two other wires 54 raises the fixing ring 47 held by the compression spring 48 inside the support tube 31. Then, the insertion pipe 38 and the compression plate 49 connected to the fixing ring 47 are raised, and the compression plate 49 is raised to squeeze the sponge 37, and the resin solution absorbed by the sponge 37 is raised. This is squeezed and flows down along the expansion pipe (40) to flow into the interior of the injection block (42), and is supplied to the nozzle bar (45) via the injection pipe (43), the injection nozzle (44) from the nozzle bar (45) Bubbles are removed as they are sprayed onto the foam on the surface of the resin solution.

In addition, the expansion pipe 40 and the sponge 37 and the insertion pipe 38 is rotated together to remove the bubbles and foreign substances while the iron core 50 and the protruding ring 52 is rotated. That is, the solidified gel and bubbles are burst by the iron core 50 and the protruding ring 52, foreign matter existing in the bubble is absorbed into the sponge 37, the foreign matter in the fine foam is projected to the protrusion ring 52 Filtered out.

Through this process, the resin solution absorbed into the sponge 37 is woven by the compression unit 300 as described above, and the woven resin solution is used again to remove bubbles.

During the operation as described above, the spring is wound only while the pinion gear of the bevel shaft 56 is engaged with the rack gear, and when the pinion gear is released from the rack gear, the spring is returned to its original state by the return force. As a result, the pulley shaft 57 is also returned to its original state. As a result, the fixing ring 47 pulled by the wire 54 is lowered by the return force of the compression spring 48, while the compression plate 49, which compresses the sponge 37, is also in the sponge 37. The compression spring 51 returns to its original state.

As described above, according to the bubble removing device of the present invention, bubbles generated in the upper portion of the resin solution are removed, bubbles are suspended in the resin solution, and gelation is prevented, and foreign substances in the resin solution are also filtered out. .

Therefore, the resin solution supply pipe and the recovery pipe are prevented from being blocked by the foam, so that the solution continues to circulate smoothly.

In addition, the supply of the resin solution is prevented from being interrupted, so that the resin solution is maintained at an appropriate concentration, thereby effectively managing equipment.

In addition, it reduces cost generation and environmental pollution by reducing high concentration of wastewater.

And the foreign material mark is prevented from occurring in the steel sheet to improve the quality of the steel sheet.

Claims (4)

The drive is rotated by a drive motor installed on the top of the solution tank and the stirring blade is installed at the end, and the drive is rotated and folded by receiving the rotational force of the drive motor by a plurality of gears connected to the stirring shaft. A drive unit including a pipe, a buckle that is fixed to the drive tube and rotates together, and an inner gear that is movable along a guide shaft erected inside the solution tank and formed with a rack gear in an inner diameter thereof; One side is fixed to the drive tube and the other side is supported by the inner gear, the power transmission line for transmitting the rotational force is rotated by meshing with the inner gear, and the foam removal unit rotated by the transmission force transmitted from the power transmission line Consists of removing the foreign matter and bubbles while rotating in accordance with the rotation of the drive tube; And The support rod is fixed to the inner gear and a rack rod having a rack gear formed at the front end thereof, and the resin solution filtered by the foam removal unit is rotated only when the rack gear is engaged with the rack gear and pulls the foam removal unit with a wire. Compression part consisting of the injection unit to be injected through the Bubble removing device of the resin solution for organic film steel sheet comprising a. According to claim 1, The power transmission line is installed in the support tube of the removal unit, A plurality of rotation shafts vertically penetrating the support tube, a pinion pulley fixed to one of the plurality of rotation shafts and engaged with the inner gear, a connection pulley respectively fixed to the remaining rotation shafts among the plurality of rotation shafts, and the pinion It consists of a belt connecting the pulley and the connecting pulley or connecting pulleys, The bubble removing unit fixed to the support tube, A shaft tube fixed perpendicularly to the support tube and inserted into the rotary shaft, a sponge fixed to the lower end of the shaft tube and having a plurality of protruding rings arranged on an outer circumferential surface thereof; An insertion tube to which the iron core is inserted and fixed, a compression plate fixed to the wire inside the support tube and fixed to the lower end of the sponge through the insertion tube, and the compression plate is seated and fixed to the lower end of the insertion tube. A circular block, a flexible pipe connected to the circular block, a fixed plate fixed to the lower side of the flexible pipe, an injection block screwed to an end of the rotary shaft, an injection pipe installed in the injection block, and an injection pipe A nozzle bar having a plurality of injection nozzles connected to the Bubble removing apparatus of the resin solution for organic film steel sheet to remove the bubbles in the solution tank in accordance with the rotation of the support tube. According to claim 1 or 2, wherein the injection unit, A bevel shaft that is rotated while being supported by a plurality of bearing blocks provided on the upper side of the support tube, a pulley shaft that is engaged with the bevel shaft and the plurality of bevel gears, and one end of which is fixed to the other lower surface of the support tube A spring removing device for a resin solution for an organic coating steel sheet, comprising a winding spring pipe fixed to the wire and a wire having one end fixed to the pulley shaft and the other end fixed to the fixing ring. The apparatus of claim 1, wherein the guide plate on which the guide roller is fixed to the upper surface of the support tube and the guide channel on which the guide plate is seated are formed along the inner gear.

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