JP4018384B2 - Steel wire oil applicator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil applicator for steel wire for applying oil to the surface of a drawn steel wire.
[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.
By the way, in the step of twisting each strand after the wire drawing step, the wire passes through a plurality of guides until the drawn steel wire is unwound and twisted, but the wire is rubbed in this guide portion. If the wire slips badly, the resistance increases, and the tension level of each wire at the twisting point varies, which is not twisted to the target cording / structure of the steel cord and causes a defect.
[0003]
Therefore, in order to stabilize the unwinding tension of the wire, oil is applied to the surface of the steel wire that has been drawn to improve the slip of the wire.
FIG. 4 is a diagram showing the configuration of a string suction type oil application device used in a conventional wet wire drawing process. This oil application device 50 uses an oil suction string 52 made of cotton or the like as a pulley for oil 2 in an oil reservoir 51. The oil 2 is sucked up on the surface of the steel wire 1 passing through the pulley 53 and applied to the surface of the steel wire 1.
[0004]
[Problems to be solved by the invention]
However, in the conventional oil application device 50, since the amount of oil sucked is not stable, it is difficult to properly control the amount of oil adhering to the steel wire 1. When the amount of oil adhesion falls below the target, unwinding tension is not stabilized in the subsequent stranded wire process, and twist disturbance occurs. On the other hand, if the amount of oil adhering to the target is larger than the target, contamination due to oil splashing in the stranded wire process will occur, which not only significantly deteriorates the work environment, but also has problems with safety. There is.
Further, when the oil applicator 50 is deteriorated due to clogging or the like due to long-term operation, the amount of oil adhering to the surface of the steel wire 1 rapidly decreases. Therefore, there is a problem that management man-hours are required.
[0005]
The present invention has been made to solve the above-described problems, and has a simple configuration and can stably apply a predetermined amount of oil to the surface of the steel wire that has been drawn. The purpose is to provide.
[0006]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided an oil applicator for a steel wire, a pulley having a groove formed in an outer peripheral portion thereof, an oil box disposed above the pulley and having an opening above the pulley, and the oil an oil dropping device provided with an oil discharge passage communicating with the box, and an oil reservoir disposed below the pulley, above end you extend into the oil reservoir, to rotate in conjunction with the above SL pulley Rutotomoni a that circle plate, the periphery of the disc has a plurality of vane portions are provided for projecting from the surface of the disc flipping the oil in the oil reservoir near the opening of the oil box It is characterized by that. As a result, the oil in the oil box is dropped from the oil discharge passage onto the pulley that is rotated by the steel wire passing through the groove portion, and the oil is supplied to the surface of the steel wire and is rotated in conjunction with the pulley. the blade portion of the upper Kien board, the oil in the oil reservoir splashed to the vicinity of the opening of the oil box, it is possible to recover part of the dropped oil. Therefore, an appropriate amount of oil can be stably dropped onto the steel wire with a simple configuration.
[0007]
The oil application device for steel wire according to claim 2 is provided with an oil tank for supplying oil to the oil reservoir, and the oil tank can be moved up and down to adjust the liquid level of the oil reservoir. As a result, the amount of oil splashed onto the pulley can be increased or decreased by increasing or decreasing the amount of oil splashed by the bladed disk, so that the amount of oil adhering to the steel wire can be easily controlled. Become.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 (a) and 1 (b) are diagrams showing the configuration of a steel wire oil coating apparatus 10 according to an embodiment of the present invention. In FIG. 1, reference numeral 11 denotes a steel wire 1 wound around its outer peripheral portion at high speed. Is a pulley in which a V groove 11a is formed, and 12 is an oil dropping device disposed above the pulley 11. The oil 2 in a box-shaped oil box 13 opening upward is supplied to the oil box 13. The oil is dropped onto the pulley 11 from the open end 14a of the drip groove (oil discharge passage) 14b of the oil discharge portion 14 that communicates.
An oil reservoir 15 is provided below the pulley 11, and the oil reservoir 15 stores oil 2 supplied from an oil tank 16 through a hose 17. Reference numeral 18 denotes a disk with blades connected at the center to the rotating shaft 11b of the pulley 11 and having a diameter larger than the diameter of the pulley 11. The diameter of the disk 18 with blades protrudes from the surface of the disk to the periphery. The tip portions of the plurality of blade portions 18k formed in this way are set to a size such that they are located below the liquid level of the oil 2 in the oil reservoir 15.
In this example, an oil tank raising / lowering means 19 for adjusting the height of the oil tank 16 is provided so that the liquid level of the oil reservoir 15 can be adjusted.
This oil application device 10 is installed at a predetermined position until the steel wire 1 is taken out by the winding device of the wire twisting machine after the final drawing die of the wire drawing process is taken out. The pulley 11 is set so as to be in contact with the steel wire 1 by a predetermined angle or more so that the pulley 11 is rotated by friction with the steel wire 1.
[0009]
Next, the operation of the oil application apparatus 10 having the above configuration will be described.
The pulley 11 of the oil application device 10 rotates by contact with the steel wire 1 wound at a high speed passing through the V groove 11a. On the pulley 11, the oil 2 is dropped from the dropping groove 14 b of the oil dropping device 12, and the oil 2 is carried along the V groove 11 a of the pulley 11, and the steel wire 1 passing through the V groove 11 a Applied to the surface.
At this time, since the bladed disk 18 rotates in conjunction with the rotation of the pulley 11, the oil 2 in the oil reservoir 15 is above the blade part 18k, that is, in the vicinity of the opening 13a of the oil box 13 above the pulley 11. And is returned to the oil box 13.
In this example, an oil tank raising / lowering means 19 is provided, and the height of the oil tank 16 is adjusted to adjust the amount of oil adhering to the steel wire 1. That is, when the oil tank 16 is raised, the liquid level of the oil sump 15 communicating with the oil tank 16 and the hose 17 is increased, so that the amount of oil splashed by the bladed disk 18 is increased. Since the oil dripping amount to 11 increases, the oil adhesion amount to the steel wire 1 increases. Conversely, when the oil tank 16 is lowered, the liquid level of the oil reservoir 15 is lowered, the amount of oil splashing is reduced, and the amount of oil dripping onto the pulley 11 is reduced.
In the oil applicator 10 of the present invention, as shown in the graph of FIG. 2, the amount of oil adhering to the steel wire 1 (mg / kg) increases or decreases in proportion to the amount of oil dripping onto the pulley 11 (drops / min). Therefore, an appropriate amount of oil can be stably supplied to the steel wire 1.
[0010]
【Example】
While winding the steel wire finished to a wire diameter of 0.10 to 0.40 mm in the wire drawing process at a high speed of 600 to 1200 m / min, an oil application device according to the present invention is installed and applied to the pulley. FIG. 3 (a) shows a distribution diagram in which the oil dropping rate is set to 60 drops / min, the oil is applied to the steel wire, and the distribution state of the oil adhesion amount is examined. In addition, for comparison, the result of application with a conventional string suction type oil application apparatus is shown in the distribution diagram of FIG. Each measurement point was 100 points.
As apparent from FIGS. 3 (a) and 3 (b), in the conventional apparatus, the dispersion of the oil adhesion amount is large (σ = 56.9), whereas in the case where the oil application apparatus of the present invention is used. It was confirmed that the variation in the amount of adhesion was extremely small (σ = 25.8), and the oil to the steel wire could be stably supplied.
[0011]
【The invention's effect】
As described above, according to the present invention, dropping oil in the oil box on the pulley, thereby supplying oil to the steel wire surface passing through a groove of the pulley, it rotates in conjunction with the pulley wings A rooted disk is provided, and the oil in the oil pool is sprinkled up to the vicinity of the oil box, and a part of the dropped oil is collected. can do.
In addition, an oil tank that supplies oil to the oil reservoir is provided, and the oil tank can be moved up and down to adjust the liquid level of the oil reservoir so that the amount of oil adhering to the steel wire can be easily adjusted. can do.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of an oil coating apparatus for steel wire according to the present embodiment.
FIG. 2 is a graph showing the relationship between the amount of oil dripping onto a pulley and the amount of oil attached to a wire.
FIG. 3 is a distribution diagram of oil adhesion amounts in the steel wire oil application device of the present invention and the conventional string suction type oil application device.
FIG. 4 is a diagram showing a configuration of a conventional string suction type oil application device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Steel wire, 2 oil, 10 Oil application apparatus for steel wires, 11 Pulley, 11a V groove, 11b Rotating shaft, 12 Oil dripping apparatus, 13 Oil box, 13a Oil box opening, 14 Oil discharge part, 14a Open end , 14b Drip groove, 15 oil reservoir, 16 oil tank, 17 hose, 18 disc with blade, 18k blade portion, 19 oil tank lifting means.

Claims (2)

An oil dripping device comprising a pulley having a groove formed on the outer periphery, an oil box disposed above the pulley and having an opening above the oil box, and an oil discharge passage communicating with the oil box; an oil reservoir provided below the pulley, earlier end to extend into the oil reservoir, Rutotomoni includes a circular plate and you rotate together with the pulley, the periphery of the disc is the disc A steel wire oil coating apparatus, wherein a plurality of blade portions are provided for projecting from the surface of the oil reservoir and splashing the oil in the oil reservoir to the vicinity of the opening of the oil box .   2. The steel wire according to claim 1, wherein an oil tank for supplying oil to the oil reservoir is provided and the oil tank is moved up and down to adjust a liquid level of the oil reservoir. Oil application device.

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