JP2876858B2 - Liquid blow-off device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long body to which a liquid is attached,
For example, the present invention relates to a liquid blowing device that blows a high-pressure gas to a copper wire to blow off a liquid to dry a surface when the copper wire is conveyed in an axial direction and passes through a plurality of partitioned chambers.

[0002]

2. Description of the Related Art Conventionally, copper wires are produced by a continuous casting method. In this continuous casting method, usually, after finish rolling, a reduction cooling step is performed to reduce an oxide layer formed on the surface. After the reduction cooling step, a cleaning liquid (hereinafter simply referred to as a liquid) is sprayed by a cleaning device to wash away the reducing agent. In order to remove this liquid from the surface of the copper wire, a liquid blowing device is used.

The cleaning device and the liquid blowing device have a structure as shown in FIG.

That is, the cleaning device 1 comprises a cylindrical guide 2 for axially guiding the copper wire that has undergone the reduction cooling step.
A cylindrical washing container 3 to which the guide 2 is coaxially attached; a lid 4 for covering the end of the washing container 3; and a copper container attached to the lid 4 coaxially and discharged from the washing container 3. A guide 5 for guiding the wire is provided, and a high-pressure liquid mainly composed of water is guided from the liquid inlet 6 to the internal space 7 of the cleaning container 3, and the end of the guide 5 and the inner wall of the cleaning container 3 The liquid is ejected from the gap 8 formed therebetween and sprayed onto the outer surface of the copper wire to wash away the reducing agent attached to the surface of the copper wire.

[0005] As shown in FIG. 8, the liquid blow-off device 10 comprises a box-shaped box 11 into which the end of the guide 5 of the cleaning device 1 is inserted. That is, a plurality of partition plates 12 arranged at a right angle to the transport direction of the copper wire and dividing the box 11 into a plurality of chambers 15 and a through-hole 12 a penetrating these partition plates 12 are attached to the high-pressure air. A nozzle 13 for jetting toward a copper wire, and the partition plate 12
A communication port 14 provided at a lower portion of the communication port and communicating the plurality of divided chambers 15 with each other, and a plurality of chambers 1 through the communication port 14.
5 and a drain 16 for discharging the liquid blown off by the nozzle 13.

The nozzle 13 has a structure as shown in FIG. That is, a cylindrical member 21 having a flange portion 20 provided around the partition plate 12 for bolting thereto, and an inner surface of the cylindrical member 21 are screwed into the copper wire to be conveyed from the upstream side in the conveying direction of the conveyed copper wire. Guide tube 22
And a lock nut 23 for fixing the guide cylinder 22 to the tubular member 21. At the downstream end of the tubular member 21, there is formed a throttle portion 24 whose diameter decreases toward the inside, and a stepped portion 2 is formed at the inner end of the throttle portion 24.
A cylindrical tubular portion 25 is formed continuously with the intermediary of the cylindrical member 7. A compressed air introduction port 26 for introducing compressed air is formed through the cylindrical portion 25 so as to penetrate the cylindrical portion 25.
The inside of the guide tube 22 is inserted so that the inner end thereof is positioned therein, and the tube communicates with the stepped portion 27 and the throttle portion 24 between the outer surface of the guide tube 22 and the inner surface of the cylindrical member 25. An air passage 28 is formed. Then, the compressed air supplied from the compressed air inlet 26 is jetted through the air passage 28 from the stepped portion 27 to the surface of the copper wire at a substantially right angle, and this jet blows off the liquid attached to the surface of the copper wire. Like that.

[0007]

However, according to the conventional liquid blow-off device 10, a plurality of chambers 15 partitioned by the partition plate 12 have a common drain 16 formed by a communication port 14 provided below the partition plate 12. The liquid (mainly mist of the liquid) blown by the nozzle 13 to the upstream side in the transport direction of the copper wire rod is connected to the communication port 1.
4 flows into the chamber 15 located on the downstream side in the transport direction via
There is a defect that the phenomenon of re-adhering to the surface of the copper wire rod after the liquid has been blown out occurs, and the efficiency of the liquid blowing-out decreases.

[0008] As described above, when the liquid blowing efficiency is reduced and the liquid removal is incomplete, detection failure occurs in the eddy current flaw detection device installed downstream of the liquid blowing device, or the copper wire is connected to the spinner pipe. Slip occurs at the pinch roll portion that is pressed into the spinner pipe, or poor lubrication application occurs at the workcer portion that applies lubrication to the surface of the copper wire immediately before being inserted into the spinner pipe.

The present invention has been made in view of the above circumstances, and can suppress the re-adhesion to the surface of a long body after the liquid has been blown out, thereby improving the efficiency of the liquid blowout. It is another object of the present invention to provide a liquid blowing device capable of preventing a detection defect in a flaw detection device, a slip in a pinch roll portion, and a lubricant application defect in a work portion portion.

[0010]

According to a first aspect of the present invention, in the liquid blow-off device according to the first aspect of the present invention, the liquid is stored in the lower part of the chamber until the communication port is submerged below the liquid level, and the communication port is sealed. It is characterized by the following.

In the liquid blow-off device according to a second aspect of the present invention, the chamber is provided with a discharge passage for communicating between the room and the outside and discharging the liquid blown off by the nozzle to the outside of the room. Liquid is stored up to a position where the inlet of the discharge passage is submerged below the liquid level, and the inlet is liquid-sealed.

According to a third aspect of the present invention, in the liquid blowing device, the chamber is provided with a discharge passage communicating between the room and the outside and discharging the liquid blown off by the nozzle to the outside of the room. Is immersed in a container in which the liquid is stored under the liquid level, and the outlet is liquid-sealed.

According to a fourth aspect of the present invention, in the liquid blowing device, the chamber is provided with a discharge passage communicating between the room and the outside and discharging the liquid blown off by the nozzle to the outside of the room. A bent portion is formed in which the traveling direction is reversed and returns to the original direction again, and a liquid is stored in the bent portion and the discharge passage is sealed.

[0014]

According to the liquid blow-off device according to the first aspect of the present invention, the liquid is stored in the lower part of the chamber to a position where the communication port is submerged below the liquid level, and the communication port is liquid-sealed. Prevents the adjacent chambers from communicating with each other via the nozzle, prevents the liquid blown off by the nozzle from flowing to the downstream chamber in the transport direction, and suppresses re-adhesion to the surface on which the blowing has been completed. .

According to the liquid blow-off device according to the second aspect of the present invention, the chamber is provided with a discharge passage communicating between the room and the outside and discharging the liquid blown off by the nozzle to the outside of the room. The liquid is stored up to the position where the inlet of the discharge passage is submerged below the liquid level, and the inlet is liquid-sealed, so that the liquid blown off through the discharge passage may be transported downstream in the transport direction. Can be prevented, and re-adhesion of the liquid can be prevented.

According to the liquid blow-off device according to the third aspect of the present invention, the chamber is provided with a discharge passage communicating between the room and the outside and discharging the liquid blown off by the nozzle to the outside of the room. Is immersed in a container in which liquid is stored below the liquid level and the outlet is sealed, so that the liquid blown off through the discharge passage is carried downstream in the transport direction. This can prevent the liquid from re-adhering.

According to a fourth aspect of the present invention, the chamber is provided with a discharge passage for communicating the room with the outside and discharging the liquid blown off by the nozzle to the outside of the room. Is formed with a bent portion in which the traveling direction is once reversed and returns to almost the original direction again, and since the liquid is stored in the bent portion and the discharge passage is sealed, it is blown off through the discharge passage. The transported liquid can be prevented from being carried to the downstream side in the transport direction, and the liquid can be prevented from re-adhering.

[0018]

An embodiment of the present invention will be described below with reference to the drawings. Note that components similar to those in the related art will be described with the same reference numerals.

As shown in FIG. 1, a cleaning device 1 having the same configuration as that of the conventional example is provided on the upstream side of the liquid blowing device 30 of the present embodiment. The liquid blow-off device 30 is attached to a box-shaped box 11, a plurality of partition plates 12 that divide the box 11 into a plurality of chambers 15, and a through hole 12 a penetrating these partition plates 12, as in the conventional example. Nozzle 33, a communication port 14 provided below the partition plate 12, and a drain 16 communicated with the plurality of chambers 15 via the communication port 14.

A liquid (for example, water) 35 is stored in a lower portion of the box 11, and the communication port 14 is immersed below the liquid level. As a result, the communication ports 14 are sealed with liquid, and the communication between the adjacent chambers 15 via these communication ports 14 is prevented.

An overflow pipe (corresponding to a discharge passage) 34 for discharging the blown liquid out of the chamber 15 is attached to the side wall of the box 11 through the side wall. As shown in FIG. 4, the overflow pipe 34 includes a straight pipe part 34a connected to the discharge duct, and a curved pipe part 34b formed to extend downward from the tip of the straight pipe part 34. The inlet of the curved tube portion 34b is immersed in a liquid 35 stored in the box 11, and the inlet is sealed with the liquid 35. Therefore, even if the overflow pipe 34 is provided, the outside and the chamber 15 do not communicate with each other via the overflow pipe 34. In addition, when the blown liquid collects in the lower part of the box 11 and the liquid level rises, the liquid 3
5 overflows and the liquid level is maintained at a constant value.

FIG. 2 shows the structure of the nozzle 33.

The nozzle 33 is provided with a cylindrical member 37, and a flange 36 for detachably attaching the cylindrical member 37 to the through hole 12 a of the partition plate 12 is provided on the outer surface of the cylindrical member 37. It is formed integrally. Tubular member 3
Numeral 7 is disposed so as to be substantially coaxial with the copper wire to be conveyed, and a cylindrical guide member 38 is provided at an end 37 a on the upstream side in the conveyance direction of the cylindrical member 37 by a pressing plate 39. 37 is pressed and fixed to a flange portion 40 formed on the inner surface of the 37.

The guide member 38 guides the conveyed copper wire in the axial direction, and the inner peripheral surface of the guide member 38 gradually decreases in diameter from the upstream side to the downstream side in the conveying direction. A conical tapered surface 38a is formed. The guide member 38 is made of a ceramic material, and the tapered surface 38a has an extremely small surface roughness.
Even if it comes into contact with the tapered surface 38a of No. 8, it is possible to prevent the copper wire from being damaged.

The cylindrical member 37 has an air passage 41 extending in the circumferential direction adjacent to the flange portion 40. The air passage 41 is formed with an air inlet 42 communicating therewith. As shown in FIG. 4, a pipe 43 connected to a high-pressure air source is connected to the compressed air inlet 42. The pressure of the introduced air pressure is adjusted in the middle of the pipe 43. And a pressure gauge 45 for checking the pressure.

A screw portion is formed on the inner surface of the end 37b of the cylindrical member 37 on the downstream side in the transport direction, and a cylindrical guide member 46 is formed on the screw portion from the downstream side in the transport direction to the upstream side. Screwed. The end of the guide member 46 is located so as to face the air passage 41 formed in the tubular member 37. The end of the guide member 46 has a conical shape whose diameter increases toward the upstream side in the transport direction. A tapered surface 46a is formed. At the end of the flange portion 40, a conical tapered surface 40a whose diameter increases toward the upstream side in the transport direction is formed corresponding to the tapered surface 46a formed on the guide member 46. When the member 46 is screwed toward the upstream side, the tapered surface 46
a and the tapered surface 40a come into close contact with each other and when twisted toward the downstream side, the tapered surface 46a and the tapered surface 40a are separated from each other, the air passage 41 is opened, and the injection port 47 is formed. Then, high-pressure air is ejected from the ejection port 47 in a conical shape toward the upstream side in the transport direction. The guide member 4
The opening area of the injection port 47 can be adjusted by adjusting the screwing amount of No. 6, and the injection air amount and the injection pressure are adjusted by this adjustment.

In this embodiment, the tapered surface 40a
And the angle of the tapered surface 46a with respect to the axis is
9 is set at an angle connecting the edge portion 9 and the injection port 47. This is because, when air is injected from the injection port 47, the blowing efficiency by this air flow can be optimized.

A lock nut 48 is screwed into a screw portion formed on the guide member 46. The lock nut 48 allows the guide member 46 to be positioned at a predetermined position with respect to the cylindrical member 37, that is, the injection port 47. Can be fixed at a position having a predetermined opening area.

As shown in FIG. 1, the nozzles 33 are provided on three partition plates 12 arranged along the direction of transport of the copper wire, and a side plate 11a on the downstream side of the box 11 in the direction of transport.
Also, a nozzle 33 having a similar configuration is attached.
However, as shown in FIG. 3, a blind plug 49 is sealed in the pipe 43 connected to the nozzle 33 attached to the side plate 11a, and the pipe 43 is separated from the compressed air source and the nozzle 33 attached to the side plate 11a. Is not supplied with compressed air. Therefore, no noise is generated from the injection of the compressed air from the nozzle 33 attached to the side plate 11a. That is, in the present embodiment, all the nozzles 33 that generate noise are arranged inside the box 11,
Is surrounded by the box 11, it is possible to suppress the generation of noise as a whole in the liquid blowing device 30.

As shown in FIGS. 4 and 5, each of the plurality of chambers 15 divided by the partition wall 12 communicates with an exhaust duct 50 for sucking and discharging the mist of the blown liquid to the outside. Installed. The exhaust ducts 50 collectively or independently communicate with an exhaust passage 52, and a suction device (not shown) is connected to the exhaust passage 52. Each exhaust duct 5
0, an opening adjustment valve 51 for adjusting the opening area of the exhaust duct 50 is interposed, and the pressure in each chamber 15 sucked by the suction device through the exhaust passage 52 is adjusted for each chamber 15. It is adjustable. In the present embodiment, each opening adjustment valve 51 is adjusted so that the pressure (negative pressure) in each chamber 15 located from the upstream side to the downstream side in the transport direction of the copper wire gradually increases from the downstream side to the upstream side. We are trying to decrease. As a result, the air in each chamber 15 flows from the downstream side to the upstream side via the nozzle 33.

Next, the operation of the present embodiment will be described.

The copper wire discharged from the cleaning device 1 is guided into the box 11. Then, the copper wire is guided by the nozzle 33 attached to the partition wall 12 and transported in the axial direction. Compressed air is supplied to the air passage 41 from the compressed air introduction port 42 formed in the cylindrical member 37 through the pipe 43 to the nozzle 33 via a pipe 43, and the tapered surface of the flange portion 40 formed on the inner surface of the cylindrical member 37. Compressed air is ejected from an ejection port 47 formed between the taper surface 40a and the tapered surface 46a formed at the end of the guide member 46 toward the outer surface of the copper wire, and the liquid attached to the surface of the copper wire is blown off. It is.

Here, as shown in FIG. 2, since the injection port 47 is opened obliquely toward the upstream side in the transport direction of the copper wire, the air flow injected from the injection port 47 is directed to the upstream side. After flowing obliquely toward the surface of the copper wire, it flows further upstream. The blown-off liquid is carried mainly to the upstream side on the airflow flowing toward the upstream side. Therefore, the blown liquid can be suppressed from being carried to the downstream side, and the liquid located downstream can be suppressed from re-adhering to the already blown surface.

Further, the compressed air jetted from the jet port 47 is jetted to a portion where the diameter is reduced by the tapered surface 38a of the guide member 38 attached to the end 37a of the cylindrical member 37. Is very high, and the pressure in that part is very low, resulting in a very large negative pressure. Therefore, when the portion has a negative pressure, air on the downstream side in the transport direction is sucked toward the portion, and an air flow from the downstream side to the upstream side is generated, and the blown liquid is removed. The flow toward the downstream side can be suppressed, and the re-adhesion can be suppressed.

As described above, the liquid adhering to the surface of the copper wire is carried toward the chamber 15 located on the upstream side by the injection of the compressed air and the air flow generated by the injection. In the chamber 15, the liquid of the liquid component
1 falls toward the lower part of the box 11 and collects at the lower part of the box 11. The accumulated liquid flows out to the outside through the overflow pipe 34 and the liquid level of the liquid accumulated at the bottom of the box 11 is kept constant. The mist of the liquid in the chamber 15 is mainly sucked into the exhaust passage 52 through the exhaust duct 50, but a part of the mist remains in the chamber 15. In the conventional example, the adjacent chambers 15 are connected to each other by the communication port 14, so that the mist remaining in the chamber 15 is connected to the communication port 1.
In some cases, the liquid may flow into the downstream chamber 15 through the chamber 4 and re-adhere to the surface after the blow-off is completed. In this embodiment, the communication port 14 is provided at the bottom of the box 11. It is submerged below, is sealed by the stored liquid, and the communication between the adjacent chambers 15 is blocked, so that the mist of the liquid flows into the downstream chamber 15 through the communication port 14. It can be prevented from re-adhering to the surface of the copper wire.

As described above, in the present embodiment, the liquid can be prevented from re-adhering to the surface on which the liquid has been blown off, so that the efficiency of the liquid can be greatly improved. By the way, in the present embodiment, the blowing effect previously obtained by the three nozzles 13 can be achieved by the single nozzle 33, and the two nozzles 33 are disposed, so that the liquid is completely blown off. be able to.

In the present embodiment, the chamber 15 is provided with an overflow pipe 34 for communicating the room with the outside and discharging the liquid blown off by the nozzle 33 to the outside.
At the lower part of the chamber 15, the liquid 35 is stored until the inlet of the overflow pipe 34 is submerged below the liquid level, and the inlet is sealed. However, as shown in FIG.
The outlet 43c may be immersed in the container 56 in which the liquid 55 is stored, while being immersed below the liquid level, to seal the outlet 43c.

In the middle of the overflow tube 34, a bent portion 57 whose traveling direction reverses once and returns to almost the original direction again.
May be formed, the liquid 58 is stored in the bent portion 57, and the overflow tube 34 is sealed.

[0039]

As described above, according to the present invention,
The re-adhesion to the surface of the elongated body after the liquid has been blown off can be suppressed, thereby improving the efficiency of blowing off the liquid, making it possible to detect defects in the flaw detector, slip in the pinch roll part, and lubricate in the work part. It is possible to prevent poor application of the agent and the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing the overall configuration of a liquid blowing device according to the present invention.

FIG. 2 is a cross-sectional view showing a nozzle in the liquid blow-off device of the present invention.

FIG. 3 is a side view of the liquid blow-off device of the present invention.

FIG. 4 is a front view of the liquid blowing device of the present invention.

FIG. 5 is a plan view of the liquid blow-off device of the present invention.

FIG. 6 is a view showing another embodiment according to the liquid blow-off device of the present invention.

FIG. 7 is a view showing still another embodiment according to the liquid blowing device of the present invention.

FIG. 8 is a sectional view of a conventional liquid blow-off device.

FIG. 9 is a cross-sectional view showing a nozzle in a conventional liquid blow-off device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 cleaning device 12 partition plate 14 communication port 15 chamber 33 nozzle 34 overflow pipe (discharge passage) 34b curved pipe portion 34c outlet 35 liquid 37 cylindrical member 40 flange portion 40a tapered surface 41 air passage 43 pipe 46 guide member 46a tapered surface 47 Injection port 55 Liquid 56 Container 57 Bend 58 Liquid

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F26B 13/10 F26B 21/00 F26B 25/22

Claims (4)

(57) [Claims] An elongated body to which a liquid has adhered is transported in the axial direction, is partitioned by a partition plate along the transport direction, and is communicated with each other by a communication port opened below the partition plate. A liquid blowing device that passes through a plurality of chambers, injects high-pressure gas from a nozzle attached to the partition plate to the outer surface of the elongated body passing through these chambers, and blows off liquid attached to the outer surface, The liquid blow-off device, wherein a liquid is stored in a lower portion of the chamber to a position where the communication port is submerged below the liquid level, and the communication port is sealed with a liquid. 2. A chamber is provided with a discharge passage communicating between the room and the outside of the room and discharging a liquid blown off by a nozzle to the outside of the room, and an inlet of the discharge passage is provided below the liquid level at a lower portion of the chamber. 2. The liquid blow-off device according to claim 1, wherein the liquid is stored up to a position where the liquid is immersed in the liquid, and the inlet is liquid-sealed. 3. A chamber is provided with a discharge passage communicating between the room and the outside and discharging the liquid blown off by a nozzle to the outside of the room, and an outlet of the discharge passage is provided in a container in which the liquid is stored. The liquid blow-off device according to claim 1, wherein the outlet is immersed under the surface and the outlet is liquid-sealed. 4. The chamber is provided with a discharge passage communicating between the room and the outside and discharging the liquid blown off by the nozzle to the outside of the room. 2. The liquid blow-off device according to claim 1, wherein a bent portion that returns in the direction is formed, and a liquid is stored in the bent portion and the discharge passage is sealed.