JP4263029B2 - Wire oil application device and wire oil application method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wire oil application apparatus for applying oil to the surface of a wire, and a wire oil application method.
[0002]
[Prior art]
Steel cords for reinforcing rubber articles used in steel radial tires for vehicles are usually made by drawing a strand made of high carbon steel to the desired wire diameter by wet drawing and then twisting a plurality of wires. Produced.
[0003]
After the wire drawing step, in the step of twisting the strands, the wire passes through a plurality of guides until the drawn steel wire is unwound and twisted, but the steel wire is rubbed in this guide part. If the wire slips badly, the resistance increases, and the tension level of each steel wire at the twisting point varies, which is not twisted to the intended setting and structure of the steel cord and causes a defect.
[0004]
Therefore, in order to stabilize the unwinding tension of the steel wire, oil is applied to the surface of the steel wire that has been drawn to improve the slippage of the steel wire.
[0005]
Conventionally, as an oil application device used in a wet wire drawing process, for example, as shown in FIGS. 8A and 8B, a pulley 104 having a groove 102 around which a steel wire 100 to be wound is wound is provided. An oil dropping device 106 is provided, and oil 110 supplied from an oil supply device 108 is dropped onto the pulley 104 to adhere the oil 110 to the surface of the steel wire 100 (for example, Patent Document 1). reference.)
In this oil application device, the amount of oil 110 attached to the steel wire 100 can be freely adjusted by controlling the amount of oil dropped from the oil dropping device 106. Can be easily obtained.
[0006]
[Patent Document 1]
JP-A-62-78291
[0007]
[Problems to be solved by the invention]
However, the oil application apparatus must use a pump capable of discharging a small amount of oil and precisely adjusting the oil discharge amount, a control device for controlling the pump, and the like, resulting in high apparatus costs. There was a problem.
[0008]
Therefore, an oil application apparatus 200 as shown in FIG. 9 has been considered.
[0009]
In FIG. 9, 202 is a pulley in which a groove portion 206 around which a steel wire 204 wound around the outer periphery is wound is formed, 208 is disposed above the pulley 202, and oil 210 is dropped onto the pulley 202. It is an oil dripping device.
[0010]
The oil application device 200 is installed at a predetermined position until the steel wire 204 exits the final drawing die of the wire drawing process and is wound by the winding device of the twisting machine. The steel wire 204 is brought into contact with the steel wire 204 at a predetermined angle or more so that the pulley 202 is rotated by the frictional force.
[0011]
The oil dripping device 208 includes an oil box 212 whose upper part is opened and an oil discharge passage 214 communicating with the oil box 212, and is disposed above the pulley 202.
[0012]
An oil sump 216 is installed below the pulley 202.
[0013]
A disk 218 is attached to the pulley 202, and the disk 218 rotates together with the pulley 202, and its blades 220 urge the oil 210 in the oil reservoir 216 to the vicinity of the oil box 212, and the dropped oil A part of 210 is collected in the oil box 212.
[0014]
Therefore, the oil 210 can be applied to the steel wire 204 with a simple configuration without requiring an expensive pump and a control device.
[0015]
When the oil 210 is adhered to the steel wire 204 using the oil application apparatus 200, a stable oil adhesion amount of the steel wire 204 can be obtained at the speed portion where the wire drawing speed is set by the wire drawing machine.
[0016]
However, when starting and stopping the wire drawing machine, since the speed is gradually increased or decreased, the wire drawing speed is always slower than the set speed.
[0017]
In the portion where the drawing speed near the start and stop of this wire drawing machine is slow, the disk 218 (FIG. 9) rotates slower than the normal drawing speed. There was a problem that it bounced up a lot.
[0018]
As a result, a large amount of oil is dripped from the oil discharge passage 214 toward the pulley 202 at a portion where the drawing speed near the start and stop of the drawing machine is slow, and the amount of oil adhering to the steel wire 204 is equal to the normal drawing speed. For example, it became 10 times or more of the part.
[0019]
For this reason, in the part where the drawn steel wire 204 is wound around the bobbin of the wire drawing machine, there is a problem that a large amount of oil adhering to the steel wire 204 is scattered around.
[0020]
The present invention has been made to solve the above-described problems, and an object thereof is to provide a wire oil coating apparatus and a wire oil coating method capable of preventing excessive oil adhesion to a wire. .
[0021]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a wire oil coating device including a groove around which a wire is wound, a pulley having a rotation shaft disposed substantially horizontally and rotatable, and an upper side of the pulley. An oil box, connected to the oil box, a discharge passage for naturally discharging the oil in the oil box, and disposed below the pulley to store oil and receive oil discharged from the discharge passage An oil sump, a rotating disk connected to the pulley, contacting the oil stored in the oil sump and splashing the oil toward the oil box during rotation; and a longitudinal intermediate portion of the discharge passage; and It is formed at or near the bottom of the part that is inclined horizontally or obliquely downward, and its inner diameter is smaller than the horizontal dimension of the discharge passage. An oil dropping means for dropping a portion of the oil flowing through the discharge passage toward the groove of the pulley has a Ku set small holes, it is characterized by having a city.
[0022]
Next, the operation of the wire oil application apparatus according to claim 1 will be described.
[0023]
First, oil is put into an oil reservoir and set so that the oil contacts the rotating disk.
[0024]
Next, the wire supplied to the wire drawing machine is wound around the groove of the pulley.
[0025]
When the wire drawing machine is operated and the wire is conveyed, the pulley starts rotating and the rotating disk also starts rotating.
[0026]
When the rotating disk rotates, the oil in the oil pool is splashed up, and the splashed oil enters the oil box.
[0027]
The oil that has entered the oil box is naturally discharged into the oil reservoir through the discharge passage, but there is a small hole at the bottom or near the bottom of the portion inclined in the longitudinal direction of the discharge passage and horizontally or obliquely downward. When the oil flows into the discharge passage, a part of the oil flowing through the discharge passage is dropped toward the groove of the pulley by the oil dropping means and is applied to the wire wound around the groove. Oil is applied.
[0028]
Conventionally, the amount (height) of oil accumulated in the oil box and the amount of oil dripped onto the pulley are approximately proportional to each other. For example, the wire drawing speed is slow at the start and stop of the wire drawing machine. In this case, the rotation of the rotating disk rotates slowly compared to the normal drawing speed, and a large amount of oil is splashed up, resulting in a problem that the amount of oil dripping increases and the oil is excessively supplied to the wire. there were.
[0029]
On the other hand, in the oil application device for wire according to the present invention, the flow rate of oil flowing through the discharge passage is almost proportional to the amount of oil accumulated in the oil box. However, the oil level in the discharge passage is relatively small.
[0030]
The oil dripping means is formed at or near the bottom of the discharge passage, and the amount of oil flowing through the oil dripping means is not significantly affected by the flow rate of oil flowing through the discharge passage, and the amount of oil flowing through the discharge passage is high. A large percentage of people are affected.
[0031]
As described above, even if the flow rate of the oil flowing through the discharge passage changes, the change in the height of the oil in the discharge passage is relatively small. Therefore, the change in the amount of oil flowing through the oil dripping means is small. Even when the rotating disk rotates slowly compared to the normal drawing speed and a large amount of oil is sprinkled up and a large amount of oil enters the oil box, the oil will be excessively supplied to the wire. There is no.
[0032]
According to a second aspect of the present invention, in the wire oil coating apparatus according to the first aspect, an opening area of a discharge port formed in the oil box and discharging oil to the discharge passage is 20 to 50 mm. ² The discharge passage has a width of 4 to 10 mm, an angle with respect to the horizontal direction of the portion where the oil dripping means is formed is set to 0 to 45 °, and the diameter of the small hole of the oil dripping means is 1 to 2 mm. Set, the viscosity of the oil is 9.5-40 mm ² / S (30 ° C.).
[0033]
Next, the operation of the oil application device for wire according to claim 2 will be described.
[0034]
The opening area of the discharge port is 20-50mm ² The width of the discharge passage is 4 to 10 mm, the angle with respect to the horizontal direction of the portion where the oil dripping means is formed is 0 to 45 °, the diameter of the small hole of the oil dripping means is 1 to 2 mm, and the viscosity of the oil is 9.5. ~ 40mm ² / S (30 ° C), for example, the amount of oil applied to the wire under the condition that the wire diameter is φ0.10 to 0.40 mm and the wire conveyance speed is 600 to 1200 m / min Is optimal.
[0035]
The opening area of the discharge port is 20mm ² When the width of the discharge passage exceeds 10 mm, when the angle of the discharge passage exceeds 45 °, when the diameter of the small hole becomes less than 1 mm, and when the oil viscosity is 40 mm ² When exceeding / s (30 ° C.), the amount of oil applied to the wire is insufficient under the condition that the wire diameter is φ0.10 to 0.40 mm and the wire conveyance speed is 600 to 1200 m / min.
[0036]
On the other hand, the opening area of the discharge port is 50 mm ² When the width of the discharge passage is less than 4 mm, the diameter of the small hole exceeds 2 mm, and the oil viscosity is 9.5 mm ² / S (30 ° C), the amount of oil applied to the wire is excessive under the condition that the wire diameter is 0.10 to 0.40 mm and the wire conveyance speed is 600 to 1200 m / min. Become.
[0037]
According to a third aspect of the present invention, there is provided an oil applicator for a wire including a groove around which a wire is wound, a pulley having a rotation shaft disposed substantially horizontally and rotatable, and a lower side than the pulley. An oil reservoir for storing oil; an oil box disposed above the pulley; and an oil box connected to the pulley that contacts the oil stored in the oil reservoir and directs the oil to the oil box during rotation. A rotating disk that is flipped up, an overflow means that is provided in the oil box and that causes excess oil to overflow and be discharged into the oil reservoir so that the oil is not stored above a certain height, and the bottom or bottom of the oil box A small hole that is connected in the vicinity and that drops oil from the oil box toward the groove of the pulley. An oil dropping means for, is characterized by having a city.
[0038]
Next, the operation of the oil application device for wire according to claim 3 will be described.
[0039]
First, oil is put into an oil reservoir and set so that the oil contacts the rotating disk.
[0040]
Next, the wire supplied to the wire drawing machine is wound around the groove of the pulley.
[0041]
When the wire drawing machine is operated and the wire is conveyed, the pulley starts rotating and the rotating disk also starts rotating.
[0042]
When the rotating disk rotates, the oil jumps up and the oil jumped into the oil box.
[0043]
The oil that has entered the oil box is dripped toward the groove of the pulley via an oil dripping means connected to the bottom of the oil box or near the bottom. As a result, oil is applied to the wire wound around the groove of the pulley.
[0044]
Conventionally, the amount (height) of oil accumulated in the oil box and the amount of oil dripped onto the pulley are approximately proportional to each other. For example, the wire drawing speed is slow at the start and stop of the wire drawing machine. In this case, the rotation of the rotating disk rotates slowly compared to the normal drawing speed, and a large amount of oil is splashed up, resulting in a problem that the amount of oil dripping increases and the oil is excessively supplied to the wire. there were.
[0045]
Here, the amount of oil dripping is highly influenced by the height of the oil in the portion where the oil dripping means is formed.
[0046]
In the oil applicator for wire of the present invention, when the rotation of the rotating disk causes a large amount of oil to splash, the excess oil overflows into the oil reservoir and the oil height in the oil box is kept constant. The amount of oil dripping from the oil dripping means is suppressed to an appropriate amount. Therefore, for example, even if the rotation of the rotating disk rotates slowly compared to the normal drawing speed, and a large amount of oil is splashed into the oil box, the oil will not be excessively supplied to the wire. .
[0047]
According to a fourth aspect of the present invention, there is provided a method of applying oil to a wire, wherein oil stored in an oil reservoir disposed below the pulley is supplied to the pulley using oil supply means driven by a pulley rotated by a moving wire. The oil is supplied to the oil box disposed on the upper side, and the oil flows out from the oil box to the oil reservoir through a discharge passage that is inclined horizontally or obliquely downward. The discharge passage is formed from an oil dropping means formed on the bottom surface of the portion inclined downward or near the bottom surface and having a small hole whose inner diameter is set smaller than the horizontal dimension of the discharge passage toward the groove of the pulley. A part of the flowing oil is dropped, and the oil is applied to the wire wound around the pulley. There.
[0048]
Next, the operation of the wire oil application method according to claim 4 will be described.
[0049]
When a wire is wound around a pulley and the wire is moved, the pulley rotates and the oil supply means is driven, and the oil stored in the oil sump arranged on the lower side of the pulley enters the oil box arranged on the upper side of the pulley. Supplied.
[0050]
The oil in the oil box flows out into the oil reservoir through the discharge passage, but a part of the oil flowing through the discharge passage is dripped from the oil dripping provided in the middle of the discharge passage toward the groove of the pulley. Oil is applied to the wire wound around.
[0051]
Even if the flow rate of the oil flowing through the discharge passage changes, the change in the oil height in the discharge passage is relatively small. Therefore, the change in the amount of oil flowing through the oil dripping means is small. Even when a large amount of oil is spun up by rotating slowly compared with the normal wire drawing speed and a large amount of oil enters the oil box, the oil is not excessively supplied to the wire.
[0052]
DETAILED DESCRIPTION OF THE INVENTION
[First Embodiment]
Hereinafter, a first embodiment of an oil application device for a wire according to the present invention will be described in detail with reference to the drawings.
[0053]
As shown in FIGS. 1 (A) and 1 (B), the wire oil application device 10 of this embodiment includes a rotating shaft 12 rotatably supported by a frame (not shown).
[0054]
The rotating shaft 12 is disposed horizontally, and a pulley 14 is fixed to the tip, and a disk 16 is fixed to the intermediate portion.
[0055]
A groove portion 18 is formed on the outer peripheral surface of the pulley 14.
[0056]
As shown in FIG. 2, the bottom surface 18A of the groove portion 18 of the pulley 14 is parallel to the rotation axis and has a groove bottom width PW. In addition, the side surface of the groove part 18 is inclined.
[0057]
The dimension of the groove bottom width PW of the groove part 18 is preferably in a range represented by the following formula (1), where d is the diameter of the steel wire 20 to which the oil is applied.
[0058]
d × 2 ≦ PW ≦ d × 10 (1)
Moreover, the diameter of the pulley 14 having the groove portion 18 as described above is preferably in the range of 80 to 100 mm.
[0059]
As shown in FIGS. 1A and 1B, an oil reservoir 24 in which oil 22 is stored is disposed below the pulley 14 and the disk 16, and the lower end portion of the disk 16 is immersed in the oil 22. Has been.
[0060]
An oil tank 27 is connected to the oil reservoir 24 via a hose 25. The height of the oil tank 27 can be adjusted by an oil tank lifting means 29. In this embodiment, the height of the oil tank 27 is changed. The height of the oil reservoir 24 can be changed.
[0061]
Further, an oil box 28 of an oil dropping device 26 is disposed above the disk 16.
[0062]
The oil box 28 is open at the top and has a relatively shallow depth.
[0063]
The dimensions inside the oil box 28 of the present embodiment are a width of 46.8 mm, a depth of 14.8 mm, and a height of 15 mm.
[0064]
A plurality of blade portions 16A are formed in the outer circumferential portion of the disk 16 in the circumferential direction. When the disk 16 rotates (in the direction of arrow A), the oil 22 in the oil reservoir 24 is transferred to the oil box 28 by the blade portions 16A. It is possible to jump up to above.
[0065]
A box-shaped cover 29 is provided above the oil reservoir 24 so as to cover the pulley 14, the disk 16, and the oil dripping device 26 and prevent the splashed oil 22 from being scattered around. The cover 29 has a hole (not shown) through which the steel wire 20 is inserted.
[0066]
A discharge port 30 is formed in the vicinity of the bottom surface of the side wall 28A of the oil box 28, and an oil passage 32 having a groove 32A through which the oil 22 discharged from the discharge port 30 flows is connected to the outside of the side wall 28A. ing.
[0067]
The discharge port 30 of the present embodiment has a rectangular shape, a width of 6.8 mm, and a height of 5.0 mm.
[0068]
The oil passage 32 has a total length of 60 mm and is inclined obliquely downward.
[0069]
As shown in FIG. 3, the groove portion 32A of the oil passage 32 has a flat bottom surface, a width W of 12.2 mm, and a depth D of 5.4 mm.
[0070]
The average inclination angle (with respect to the horizontal direction) of the oil passage 32 is 15 °.
[0071]
A dripping cylinder 34 extending in the vertical direction is attached to the bottom surface of the middle portion in the longitudinal direction of the oil passage 32. In addition, the lower end of the dropping cylinder 34 may be cut at right angles to the axial direction as shown, or may be cut obliquely although not shown.
[0072]
As shown in FIG. 1B, the dripping cylinder 34 is located above the pulley 14.
[0073]
As shown in FIG. 3, the dripping cylinder 34 of the present embodiment has an outer diameter d2 of 2 mm, an inner diameter d1 of 1 mm, and a length L of 5 mm.
[0074]
In the present embodiment, the amount of oil applied to the steel wire 20 is optimum under the conditions that the diameter of the steel wire 20 is φ0.10 to 0.40 mm and the conveyance speed of the steel wire 20 is 600 to 1200 m / min. It is comprised so that it may become.
(Function)
Next, the operation of the wire oil applicator 10 of this embodiment will be described.
[0075]
The wire oil applicator 10 is installed at a predetermined position until the steel wire 20 exits the final drawing die of the wire drawing process and is wound by the winding device of the twisting machine.
[0076]
The steel wire 20 is wound around the lower side of the pulley 14 so that the pulley 14 is rotated by a frictional force.
[0077]
In addition, the oil 22 is stored in the oil reservoir 24 so that the lower end of the disk 16 contacts.
[0078]
The viscosity of the oil 22 is 9.5 to 40 mm ² / S (30 ° C) is preferable.
[0079]
When the wire drawing machine is operated and the steel wire 20 is conveyed, the pulley 14 and the disk 16 rotate.
[0080]
When the disk 16 rotates, the oil 22 in the oil reservoir 24 jumps up, and the oil 22 jumped up enters the oil box 28.
[0081]
The oil 22 that has entered the oil box 28 is discharged from the discharge port 30, flows through the oil passage 32, and falls into the oil reservoir 24.
[0082]
Here, a part of the oil 22 flowing through the oil passage 32 is dripped into the groove portion 18 of the pulley 14 rotating from the lower end of the dripping cylinder 34.
[0083]
Then, the oil 22 attached to the groove portion 18 of the pulley 14 is applied to the steel wire 20 that rotates the pulley 14.
[0084]
Here, at the portion where the drawing speed of the wire drawing machine is slow and slow, the disk 16 rotates slowly as compared with the normal wire drawing speed, and the oil 22 jumps toward the oil box 28 in a large amount.
[0085]
As a result, the level of the oil 22 in the oil box 28 increases, and the flow rate of the oil flowing through the oil passage 32 increases. However, since the change in the height of the oil 22 in the oil passage 32 is relatively small, The change in the amount of oil 22 is small, and the oil 22 is not excessively supplied to the steel wire 20.
[0086]
In addition, the opening area of the discharge port 30 is 20 mm. ² If the oil passage 32 exceeds 10 mm, the oil passage 32 exceeds 45 °, the inner diameter d1 of the dropping cylinder 34 is less than 1 mm, or the oil viscosity is 40 mm. ² / S (30 ° C), the diameter of the steel wire 20 is φ0.10 to 0.40 mm, and the oil to the steel wire 20 is transferred under the condition that the conveying speed of the steel wire 20 is 600 to 1200 m / min. The application amount is insufficient.
[0087]
On the other hand, the opening area of the discharge port 30 is 50 mm. ² If the diameter of the oil passage 32 is less than 4 mm, the diameter d1 of the dropping cylinder 34 exceeds 2 mm, and the viscosity of the oil is 9.5 mm ² / S (30 ° C.), the diameter of the steel wire 20 is φ0.10 to 0.40 mm, and the steel wire 20 is conveyed to the steel wire 20 under the conditions of 600 to 1200 m / min. Oil application amount becomes excessive.
[Second Embodiment]
Next, a second embodiment of the wire oil applicator of the present invention will be described in detail. In addition, the same code | symbol is attached | subjected to the same structure as 1st Embodiment, and the description is abbreviate | omitted.
[0088]
As shown in FIG. 4, in this embodiment, an overflow pipe 36 is connected to the oil box 28, and a dripping cylinder 34 is attached to the bottom of the oil box 28.
[0089]
The overflow pipe 36 has an upper end disposed near the upper end of the oil box 28 and a lower end disposed slightly above the oil reservoir 24.
[0090]
In the present embodiment, when the wire drawing machine is operated and the oil 22 splashed up by the disk 16 enters the oil box 28, the oil 22 is dripped into the groove portion 18 of the pulley 14 rotating from the lower end of the dripping cylinder 34. And applied to the steel wire 20.
[0091]
Here, when the disk 16 bounces a large amount of oil 22 toward the oil box 28 at a portion where the drawing speed of the wire drawing machine is slow and the stop is slow, the level of the oil 22 in the oil box 28 is The excess oil 22 is discharged to the oil reservoir 24 through the overflow pipe 36, the oil level is kept constant (near the upper end of the overflow pipe 36), and the amount of oil 22 dripped from the dropping cylinder 34 is reduced. The oil 22 does not increase more than necessary, and the oil 22 does not become excessively supplied to the steel wire 20.
[0092]
The drop amount of the oil 22 can be changed according to the viscosity of the oil 22, the size of the oil box 28, the size of the discharge port 30, the size and inclination angle of the oil passage 32, the size of the dropping cylinder 34, etc. As for the dimensions, etc., an optimum value may be selected according to the diameter of the steel wire 20 and the conveying speed.
[0093]
In the above embodiment, the dropping cylinder 34 is provided on the bottom surface of the oil passage 32 or the bottom surface of the oil box 28, and the oil 22 is dropped from the dropping cylinder 34. However, the present invention is not limited to this. A small hole may be formed on the bottom surface or the bottom surface of the oil box 28, and the oil 22 may be dropped from the small hole.
(Test example)
In order to confirm the effect of the present invention, a conventional wire oil applicator and a wire oil applicator of an embodiment to which the present invention is applied are prepared. The amount of oil scattered around the bobbin was examined.
[0094]
The conventional oil application device for wire has a structure shown in FIG.
[0095]
The wire oil applicator of the example has the structure of the above embodiment shown in FIG.
[0096]
In both the conventional example and the embodiment, the amount of oil dripping is adjusted to be equal at the normal wire drawing speed (steady speed).
[0097]
Wire oil adhesion amount: The wire drawing machine was started and oil was applied to the wire until the steady speed was reached, and the relationship between the transport distance from the start and the oil adhesion amount at the distance was examined. The measurement result was as the graph shown in FIG.
[0098]
Oil scattering amount: As shown in FIG. 6, A5 size aluminum foils 42 are arranged in three places around the winding bobbin 40 of the wire drawing machine, and the wire drawing machine is stopped at 2000 m from the start of the wire drawing machine, The amount of oil adhering to the three aluminum foils 42 was measured. The measurement result was as the graph shown in FIG.
[0099]
As a result of the test, when the wire oil applicator of the example was used, the amount of oil attached to the steel cord was about 1/3 immediately after the start of the wire drawing machine as compared with the case of using the conventional wire oil applicator. Thus, the excessive application of oil, which was a problem in the conventional example, was resolved, and the amount of oil scattered around the wire drawing machine was also reduced to about 1/3.
[0100]
【The invention's effect】
As described above, the wire oil coating apparatus of the present invention has an excellent effect that an appropriate amount of oil can be adhered to the wire.
[0101]
In addition, according to the wire oil application method of the present invention, there is an excellent effect that an appropriate amount of oil can be adhered to the wire.
[Brief description of the drawings]
FIG. 1A is a perspective view of a wire oil coating apparatus according to a first embodiment of the present invention, and FIG. 1B is a side view of the wire oil coating apparatus shown in FIG. FIG.
FIG. 2 is a cross-sectional view of a pulley.
FIG. 3 is a cross-sectional view of an oil passage.
4A is a perspective view of a wire oil coating apparatus according to a second embodiment of the present invention, and FIG. 4B is a side view of the wire oil coating apparatus shown in FIG. 4A. FIG.
FIG. 5 is a graph showing a relationship between a wire conveyance distance and an oil adhesion amount.
FIG. 6 is an explanatory diagram showing a method for measuring the amount of oil scattering.
FIG. 7 is a graph showing the amount of oil scattered around the bobbin of the wire drawing machine.
FIG. 8 is a front view of a conventional oil application device.
9A is a perspective view of a wire oil application device according to another conventional example, and FIG. 9B is a partial cross-sectional view of the wire oil application device shown in FIG. 9A as viewed from the side. FIG.
[Explanation of symbols]
10 Oil coating device for wire
14 pulley
16 discs (rotating discs)
18 groove
20 Steel wire
22 Oil
28 Oil box
32 Oil passage (discharge passage)
34 Dripping cylinder
36 Overflow piping (overflow means)

Claims (4)

A pulley provided with a groove around which a wire is wound, a rotation shaft arranged substantially horizontally and rotatable;
An oil box disposed above the pulley; and
A discharge passage connected to the oil box for naturally discharging the oil in the oil box;
An oil reservoir that is disposed below the pulley, stores oil, and receives oil discharged from the discharge passage;
A rotating disk connected to the pulley and in contact with the oil stored in the oil reservoir, and when the oil is rotated, the oil is splashed toward the oil box;
A small hole having an inner diameter set smaller than a horizontal dimension of the discharge passage is formed at a middle portion in the longitudinal direction of the discharge passage and at the bottom or near the bottom of a portion inclined horizontally or obliquely downward. Oil dripping means for dripping a part of the oil flowing through the discharge passage toward the pulley groove;
And an oil coating device for wires. An opening area of a discharge port formed in the oil box and discharging oil into the discharge passage is 20 to 50 mm ² ,
The discharge passage has a width of 4 to 10 mm, and an angle with respect to the horizontal direction of the portion where the oil dripping means is formed is set to 0 to 45 °.
The diameter of the small hole of the oil dripping means is set to 1 to 2 mm,
The oil has a viscosity of 9.5 to 40 mm ² / s (30 ° C.),
The wire oil applicator according to claim 1. A pulley provided with a groove around which a wire is wound, a rotation shaft arranged substantially horizontally and rotatable;
An oil sump disposed below the pulley and storing oil;
An oil box disposed above the pulley; and
A rotating disk connected to the pulley and in contact with the oil stored in the oil reservoir, and when the oil is rotated, the oil is splashed toward the oil box;
Overflow means that is provided in the oil box and causes excess oil to overflow and be discharged into the oil reservoir so that the oil is not stored above a certain height.
An oil dropping means connected to the bottom of the oil box or near the bottom, and having a small hole for dropping the oil of the oil box toward the groove of the pulley;
And an oil coating device for wires. Supplying oil stored in an oil reservoir disposed on the lower side of the pulley to an oil box disposed on the upper side of the pulley using an oil supply means driven by a pulley rotated by a moving wire;
Oil flows out from the oil box through a discharge passage inclined horizontally or obliquely downward into the oil reservoir, and is located in the middle of the longitudinal direction of the discharge passage and at or near the bottom surface of the portion inclined horizontally or obliquely downward. A portion of the oil flowing through the discharge passage is dropped from the oil dropping means having a small hole whose inner diameter is set smaller than the horizontal dimension of the discharge passage toward the groove of the pulley, and the pulley Applying oil to the wire to be wound,
A method of applying oil to a wire.

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