JP3836361B2 - Oil applicator for steel wire - Google Patents

Description

表１から明らかなように、本発明のオイル塗布装置を用いた実施例１〜３は、従来の紐吸上げ供給式オイリング装置を用いた比較例１〜３に比べて、いずれのワイヤ速度においても、オイルの付着量が安定し、かつ、テンションのばらつきも小さいことから、オイルをワイヤ表面に均一に付着させることができることがわかった。
また、５日間使用した後でも、ワイヤへのオイル付着量は安定しており、テンションのばらつきも少なく、本発明の装置が長期間の使用に耐えることが確認された。
これに対して、上記比較例１〜３ではオイル付着量が激減し、テンションのばらつきが著しく増大した。
【００１１】
【発明の効果】
以上説明したように、本発明のオイル塗布装置は、内部にオイル貯蔵室を設けるとともに、溝部に開口し上記オイル貯蔵室と連通する複数個の穴を形成したプーリと、上記プーリを水平にかつ回転可能に支持する、上端側が上記オイル貯蔵室に連通し、その中空部に、一端が上記プーリの回転軸に連結され他端がオイル溜め内のオイルの液面下に位置されるスクリューを収納する筒状体とを備え、上記溝部を通過するワイヤによるプーリの回転と連動して回転するスクリューにより、オイル溜めから筒状体の中空部を介してオイル貯蔵室にオイルを吸い上げ、この吸い上げられたオイルをプーリの回転による遠心力により上記穴から噴射して、上記ワイヤにオイルを供給し、上記ワイヤ表面にオイルを付着させるようにしたので、簡単な構成で、スチールワイヤに安定してオイルを供給することができる。
また、従来の紐吸上げ供給式オイリング装置に使用される紐のような消耗部品を使用していないので、長期間使用に耐えることができ、スチールワイヤの生産効率性を著しく向上させることができる。
【図面の簡単な説明】
【図１】 本実施の形態に係るスチールワイヤ用オイル塗布装置の構成を示す図である。
【図２】 従来の紐吸上げ供給式オイリング装置の構成を示す図である。
【符号の説明】
１ スチールワイヤ、２ オイル、１０ スチールワイヤ用オイル塗布装置、１１ プーリ、１１ａ 溝部、１１ｂ 回転軸、１１ｃ 支持部材、１１ｋ 穴、１１ｍ 穴の開口部、１１ｓ オイル貯蔵室、１２ 筒状体、１２ｓ 筒状体の中空部、１３ オイル溜め、１３ａ オイル溜めの底部、１４ 基台、１４ａ基台のオイル導入口、１４ｂ 基台の中空部、１５ ベアリング、１６ スクリュー。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil coating apparatus for steel wire for causing oil to adhere to the surface of a steel wire when wet-drawing the 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.
When twisting each strand of steel cord, twist it using a tubular or buncher type twister, but the steel wire passes through multiple guides from unwinding to reaching the twist point To do. The above guide uses a pulley (rotary system) in the slow rotating part, but a tube-shaped or ring-shaped guide with a diameter of 2 to 15 mm is used in a small space part or a part where a bearing cannot be used at high rotation. ing. Since the wire is rubbed at this guide portion, if the resistance increases, the tension level of each wire at the twisting point varies. Therefore, in order to suppress this variation in tension level, it is necessary to impart lubricity to the steel wire itself to reduce the resistance.
[0003]
By the way, when there is a wide space around the unwinding part of the steel wire, it is possible to attach oil that has lubricity immediately after unwinding, but there is sufficient space to install a device for attaching oil. If it is not obtained, oil cannot be adhered to the steel wire, so that the lubricating liquid (oil) used in the wet wire drawing process for finishing the diameter of the steel wire to 0.1 to 0.4 mm is the surface of the wire. If it is not sufficiently adhered and reacted, it will not function as a lubricating film for the guide part.
Therefore, as a method of attaching oil to the wire to stabilize the stranded wire property, when attaching in the wet wire drawing process, a string sucking and feeding type oiling device 50 as shown in FIGS. 2 (a) and 2 (b) is used. The oil 2 in the oil reservoir 51 is sucked up by the string 52 and supplied to the pulley 53 through which the wire 1 passes to attach the oil 2 to the surface of the wire 1, or the wire is directly put into the oil liquid. It was soaked that oil was attached.
[0004]
[Problems to be solved by the invention]
However, in the wet wire drawing process, the wire speed of the wire is as high as 600 to 1200 m / min. Therefore, in the method of sucking the oil 2 with the string 52 and supplying it to the pulley 53, the string 52 is rubbed extremely quickly. The sucking up of the oil 2 is deteriorated due to the deterioration / dirt of the string 52, and the amount of oil adhering to the wire 1 is reduced or the adhering becomes sparse, so that the wire tension varies in the stranded wire process. There was a problem. Furthermore, in order to prevent the adhesion from being lowered, it is necessary to frequently perform an operation for replacing the string 52 or pulling the string 52 to make it free from deterioration / dirt. This causes a decrease in productivity. It was.
On the other hand, the method of directly immersing the wire in the oil liquid has a problem in that the oil adheres excessively and oil scattering occurs, resulting in process contamination and environmental deterioration.
[0005]
The present invention has been made to solve the above-described problems, and provides an oil application apparatus capable of stably and uniformly attaching a certain amount of oil to the surface of a steel wire wound up at high speed. Objective.
[0006]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided an oil applicator for steel wire, an oil sump for storing oil, and an oil storage in an oil sump installed above the oil sump so that a rotating shaft thereof is substantially vertical. A pulley having a chamber and opening in a groove formed in the outer peripheral portion, and having a plurality of holes communicating with the oil storage chamber, one end connected to the rotating shaft of the pulley, and the other end oil A screw positioned below the surface of the oil in the reservoir, and a cylindrical body having an upper end communicating with the oil storage chamber, having a hollow portion for storing the screw, and rotatably supporting the pulley. The screw rotating in conjunction with the rotation of the pulley by the wire passing through the groove portion sucks oil from the oil reservoir into the oil storage chamber through the hollow portion of the cylindrical body. The was injected from the hole by the centrifugal force due to rotation of the pulley, to supply oil to the wire, in which so as to attach the oil to the wire surface.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1A and 1B are views showing the configuration of a steel wire oil coating apparatus 10 according to the present embodiment. In FIG. 1, reference numeral 11 is an abbreviation in which a V-shaped groove 11 a is formed on the outer periphery. A pulley that rotates in a horizontal plane. Inside the pulley 11, around the rotation shaft 11 b, a recess that opens downward as an oil storage chamber 11 s and one end opens into the groove 11 a, and the pulley 11 has a radial direction. A plurality of (in this case, twelve) holes 11k communicating with the oil storage chamber 11s are provided.
12 is installed on the bottom 13a of the oil sump 13 and is mounted on a hollow base 14 having an oil inlet 14a on the side surface. The pulley 15 is supported by a bearing 15 via a support member 11c mounted on the pulley 11. 11 is a cylindrical body that is coupled to the pulley 11 and rotatably supports the pulley 11 in a horizontal plane. The hollow portion 12 s of the cylindrical body 12 has an upper end communicating with the oil storage chamber 11 s and a lower end positioned below the liquid level of the oil 2 in the oil reservoir 13. Reference numeral 16 denotes a screw housed in the hollow portion 12 s of the cylindrical body 12, one end connected to the rotating shaft 11 b of the pulley 11 and the other end extending into the hollow portion 14 b of the base 14.
The oil application device 10 is installed at a predetermined position until the steel wire 1 comes out of the final drawing die of the wire drawing process and is taken up by a winding device of a twisting machine. The steel wire 1 is wound around the groove 11a at least once so that the pulley 11 is rotated by friction with the wire 1, or is set so as to be in contact with the steel wire 1 at a predetermined angle or more.
[0008]
Next, the operation of the oil coating apparatus 10 having the above configuration will be described.
When the steel wire 1 finished to a wire diameter of 0.10 to 0.40 mm in the wire drawing step is wound at a wire speed of 600 to 1200 m / min, the pulley 11 of the oil coating apparatus 10 is moved to the steel wire 1. The screw 16 rotates in conjunction with this rotation. The oil 2 in the oil reservoir 13 is sucked up by the rotation of the screw 16 and guided to the oil storage chamber 11 s inside the pulley 11 through the hollow portion 12 s of the cylindrical body 12. The oil 2 accumulated in the oil storage chamber 11s is injected from the opening 11m of the hole 11k at the bottom of the groove 11a through a plurality of holes 11k communicating with the groove 11a of the pulley by centrifugal force due to the rotation of the pulley 11. Is done. Thereby, since the oil 2 is supplied to the steel wire 1 that passes while contacting the groove 11a, the oil 2 can be adhered to the surface of the steel wire 1.
Moreover, since the said pulley 11 rotates following the steel wire 1 wound up, the oil 2 can be supplied stably.
[0009]
As described above, the steel wire oil application device 10 according to the present invention can supply oil stably to a steel wire wound at high speed with a simple configuration without using a driving means such as an oil suction device. Not only can it be used, but it does not use consumable parts that cause deterioration or contamination, such as the strings used in conventional string sucking and feeding type oiling devices. Since it can withstand use, the production efficiency of steel wire can be significantly improved.
[0010]
[Example]
A high carbon steel wire having a diameter of about 5.5 mm containing carbon of about 0.82% wt. Is repeatedly dry-drawn until the diameter is about 1.19 mm, followed by a patenting treatment and a brass plating treatment. The added wire was prepared, and this wire was wet-drawn to produce a wire having a diameter of about 0.23 mm. Then, before winding the wire from the final drawing die, the oil application device according to the present invention is installed, and the oil is attached to the surface of the wire wound at a speed of 600 to 1200 m / min. The amount of oil adhering to the wire was measured with an oil concentration meter. Also, using a tubular type twisting machine used for twisting, install a wire winding spool at a position where it passes through the guide part more than the twisting point, and measure the tension variation at the twisting point. Went. Further, in order to evaluate the durability, the amount of oil adhering to the wire and the variation in tension after using this apparatus for 5 days were measured. The results are shown in Table 1 below. The tension variation was evaluated by the difference (gf) between the maximum value and the minimum value of the tension level at the twist point.
For comparison, the result of the same measurement using a conventional string sucking and feeding type oiling device is also shown.
[Table 1]

As is apparent from Table 1, Examples 1-3 using the oil application apparatus of the present invention are at any wire speed as compared with Comparative Examples 1-3 using a conventional string sucking and feeding type oiling apparatus. However, since the amount of oil deposited was stable and the variation in tension was small, it was found that the oil could be uniformly deposited on the wire surface.
In addition, even after 5 days of use, the amount of oil adhering to the wire was stable, there was little variation in tension, and the device of the present invention was confirmed to withstand long-term use.
On the other hand, in the above Comparative Examples 1 to 3, the amount of oil adhesion was drastically decreased, and the variation in tension was remarkably increased.
[0011]
【The invention's effect】
As described above, the oil application device of the present invention includes an oil storage chamber inside, a pulley having a plurality of holes that open in the groove and communicate with the oil storage chamber, and the pulley horizontally and The upper end of the oil storage chamber communicates with the oil storage chamber, and is rotatably supported. One end of the screw is connected to the rotating shaft of the pulley and the other end is located below the oil level in the oil reservoir. The oil is sucked from the oil reservoir to the oil storage chamber through the hollow portion of the cylindrical body by a screw that rotates in conjunction with the rotation of the pulley by the wire passing through the groove portion. The oil is sprayed from the hole by centrifugal force due to the rotation of the pulley, and the oil is supplied to the wire so that the oil adheres to the wire surface. , It can be supplied stably oil steel wire.
In addition, it does not use consumable parts such as strings used in conventional string sucking and feeding type oiling devices, so it can withstand long-term use and can significantly improve steel wire production efficiency. .
[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 diagram showing a configuration of a conventional string sucking and feeding type oiling device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Steel wire, 2 oil, 10 Oil supply apparatus for steel wires, 11 Pulley, 11a Groove part, 11b Rotating shaft, 11c Support member, 11k hole, 11m hole opening part, 11s Oil storage chamber, 12 Cylindrical body, 12s cylinder Hollow part of the body, 13 Oil sump, 13a Bottom part of oil sump, 14 base, 14a base oil inlet, 14b Hollow part of base, 15 bearing, 16 screw.

Claims (1)

An oil sump for storing oil, and an oil storage chamber installed inside the oil sump so that the rotation axis thereof is in a substantially vertical direction. A pulley having a plurality of holes communicating with the oil storage chamber, a screw having one end connected to the rotating shaft of the pulley and the other end positioned below the oil level in the oil reservoir, and an upper end side A hollow portion that communicates with the oil storage chamber and houses the screw, and includes a cylindrical body that rotatably supports the pulley, and sprays oil sucked up from the oil reservoir from the hole portion, An oil coating apparatus for steel wire, wherein oil is supplied to a wire passing through the groove.

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