JP2003183990A - Oil coater for steel wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil coater enabling a given amount of oil to stably and uniformly be oiled on the surface of a steel wire to be wound in high speed. <P>SOLUTION: This oil coater includes a pulley 11 provided with an oil storage chamber 11s inside and a plurality of holes 11k opened along a groove 11a and connecting with the oil storage chamber 11s, and a cylindrical body 12 which supports the pulley 11 horizontally and rotatably, connects with the oil storage chamber 11s on the top side and contains in the hollow part 12s a screw 16 with its one end linked to the rotating shaft 11b of the pulley 11 and the other end located under the level of the oil 2 in an oil reservoir 13. This oil coater works as follows: the oil 2 is sucked up from the oil reservoir 13 by the aid of revolving the screw 16 and then jetted through the holes 11k to be fed to the steel wire 1. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a steel wire oil applying apparatus for applying oil to the surface of a steel wire when the steel wire is wet drawn. is there. [0002] Steel cords for reinforcing rubber articles used for steel radial tires for vehicles and the like are usually drawn by wire-drawing a wire made of high carbon steel or the like to a desired wire diameter by a wet drawing method. After that, it is produced by twisting a plurality of strands. When twisting each strand of steel cord, use a tubular type or buncher type twisting machine, but the steel wire passes through multiple guides from unwinding to reaching the twist point I do. The above guide uses a pulley (rotary system) in a part where rotation is slow, 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 due to high rotation. ing. Since the wires are rubbed in the guide portion, if the resistance is increased, the tension level of each wire at the twist point varies, so that the steel cord is not twisted with the desired habit and structure of the steel cord and causes a defect. Therefore, in order to suppress the variation in the tension level, it is necessary to provide lubricity to the steel wire itself to reduce the resistance. [0003] If there is a large space around the unwinding portion of the steel wire, it is possible to deposit oil for providing lubricity immediately after unwinding.
If there is not enough space to install a device for applying oil, the oil cannot be applied to the steel wire.
If the lubricating liquid (oil) used in the wet drawing process to finish to 0.4 mm does not sufficiently adhere to and react with the wire surface, it will not function as a lubricating film for the guide portion. Therefore, as a method for stabilizing the stranded property by adhering oil to the wire, when performing the adhering in the wet drawing process, a string sucking and supplying oiling device 50 as shown in FIGS. 2A and 2B 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, so that the oil 2 adheres to the surface of the wire 1 or the wire is directly immersed in the oil liquid. It was immersed to allow oil to adhere. However, in the wet drawing process, the wire speed of the wire is 600 to 1200 m / m.
In the method of sucking up the oil 2 by the string 52 and supplying the oil 2 to the pulley 53, the string 52 rubs extremely fast. There has been a problem in that the oil adhesion amount is reduced or the oil adhesion is sparse, which causes a variation in wire tension in the stranded wire process. Further, in order to prevent the adhesion from being reduced, it is necessary to frequently replace the string 52 or to frequently pull out the string 52 to make it free from deterioration and dirt. I was On the other hand, the method of directly immersing the wire in the oil liquid has a problem in that the oil is excessively adhered, and the oil is scattered, resulting in a dirty process and a deterioration in environmental aspects. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides an oil application apparatus capable of stably and uniformly adhering a fixed amount of oil to the surface of a steel wire wound at a high speed. The purpose is to do. According to a first aspect of the present invention, there is provided an oil applying apparatus for a steel wire, wherein an oil reservoir for storing oil is provided, and a rotation axis of the oil reservoir is disposed substantially vertically above the oil reservoir. A pulley having an oil storage chamber inside, a plurality of holes formed in a groove formed in the outer peripheral portion and communicating with the oil storage chamber, and one end of the pulley A screw, the other end of which is located below the level of the oil in the oil reservoir, and a hollow portion in which the upper end communicates with the oil storage chamber and houses the screw; A rotatable cylindrical body, and a screw that rotates in conjunction with the rotation of the pulley by a wire passing through the groove, from the oil reservoir to the oil storage chamber through the hollow portion of the cylindrical body. Oil is sucked up, and the sucked-up oil is injected from the hole by centrifugal force due to the rotation of the pulley,
The oil is supplied to the wire so that the oil adheres to the surface of the wire. Embodiments of the present invention will be described below with reference to the drawings. 1 (a) and 1 (b) are views showing the configuration of a steel wire oil applying apparatus 10 according to the present embodiment. In the figure, reference numeral 11 denotes a substantially V-shaped groove 11a formed on the outer periphery. A pulley that rotates in a horizontal plane, and inside the pulley 11, around the rotation shaft 11b, a concave portion that opens downward and becomes an oil storage chamber 11s;
One end is open to the groove 11a, and a plurality of (in this case, 12) holes 11k that extend in the radial direction of the pulley 11 and that communicate with the oil storage chamber 11s are provided. The pulley 12 is mounted on a bottom 13 a of an oil reservoir 13, mounted on a hollow base 14 having an oil inlet 14 a on a side surface, and supported by a bearing 15 via a support member 11 c mounted on the pulley 11. 11 is a cylindrical body that rotatably supports the pulley 11 in a horizontal plane. The hollow portion 12s of the cylindrical body 12 has an upper end communicating with the oil storage chamber 11s and a lower end located below the level of the oil 2 in the oil reservoir 13. 16 is housed in the hollow portion 12s of the tubular body 12, one end is connected to the rotating shaft 11b of the pulley 11, and the other end is the base 14
Is a screw extending into the hollow portion 14b. The oil application device 10 is installed at a predetermined position between the time when the steel wire 1 exits the final drawing die in the wire drawing process and is wound by the winding device of the twisting machine. Due to friction with the wire 1, the pulley 11
The steel wire 1 is inserted into the groove 11a so that
Is set to be wound once or more, or to be in contact with the steel wire 1 at a predetermined angle or more. Next, the operation of the oil application device 10 having the above configuration will be described. 0.10 to 0.40 in the wire drawing process
mm, the steel wire 1 finished to a wire diameter of 6 mm
When it is wound at a speed of 00 to 1200 m / min, the pulley 11 of the oil application device 10 rotates by contact with the steel wire 1, and the screw 16
Rotates. The oil 2 in the oil reservoir 13 is sucked up by the rotation of the screw 16, passes through the hollow portion 12 s of the tubular body 12, and passes through the oil storage chamber 1 inside the pulley 11.
Led to 1s. The oil 2 accumulated in the oil storage chamber 11s is centrifugally generated by the rotation of the pulley 11,
It is sprayed 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. Accordingly, the oil 2 is supplied to the steel wire 1 that passes while contacting the groove 11a, so that the oil 2 can be attached to the surface of the steel wire 1. Since the pulley 11 rotates following the steel wire 1 to be wound, the oil 2
Can be supplied stably. As described above, the oil application device 10 for steel wire according to the present invention has a simple configuration and can stably supply oil to a steel wire wound at high speed without using a driving means such as an oil sucking device. Not only can it be used, but also because it does not use consumable parts that cause deterioration or dirt, such as the string used in the conventional string suction and supply type oiling device, it is necessary to regularly replenish the oil in the oil reservoir. Only for a long period of use, steel wire production efficiency can be significantly improved. EXAMPLE A high-carbon steel wire having a diameter of about 5.5 mm containing about 0.82% by weight of carbon was repeatedly subjected to dry drawing until the diameter became about 1.19 mm.
A wire having been subjected to a patenting process and a brass plating process is prepared, and the wire is wet-drawn to have a diameter of about 0.23 mm.
mm wire was manufactured. Then, before winding the wire out of the final drawing die, the oil coating device according to the present invention is installed, and 600 to 1200 m / min.
Attach oil to the surface of the wire that is wound at the speed of
The amount of oil adhering to the wound wire was measured by an oil concentration meter. In addition, using a tubular type twisting machine used for twisting, installing a wire winding spool at the position where the wire passes through the guide part more than the twisting point, and measures the variation in tension at the twisting point Was done. In addition, in order to evaluate the durability, the amount of oil adhering to the wire and the variation in tension were measured after using this apparatus for 5 days. The results are shown in Table 1 below. The variation in tension 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 results of the same measurement using a conventional string suction and supply type oiling device are also shown. [Table 1] As is evident from Table 1, Examples 1 to 3 using the oil application device of the present invention were compared with Comparative Examples 1 to 3 using the conventional string suction and supply type oiling device at any wire speed. Also, it was found that the oil can be uniformly attached to the wire surface because the amount of oil attached is stable and the variation in tension is small. In addition, even after use for 5 days, the amount of oil adhering to the wire was stable, the variation in tension was small, and it was confirmed that the device of the present invention could withstand long-term use. On the other hand, in Comparative Examples 1 to 3, the amount of adhering oil was drastically reduced, and the variation in tension was significantly increased. As described above, the oil applicator of the present invention is provided with an oil storage chamber therein, and a pulley having a plurality of holes formed in the groove and communicating with the oil storage chamber. The upper end communicates with the oil storage chamber, and the lower end thereof is connected to the rotation shaft of the pulley and the other end is connected to the oil storage chamber. A cylindrical body for housing a screw located below, and a screw rotating in conjunction with the rotation of the pulley by the wire passing through the groove, the oil storage chamber from the oil reservoir through the hollow part of the cylindrical body. Oil is sucked up, and the sucked up oil is ejected from the hole by centrifugal force due to the rotation of the pulley to supply oil to the wire and attach oil to the wire surface. As a result, oil can be stably supplied to the steel wire with a simple configuration. In addition, since a consumable part such as a string used in a conventional string suction-supply type oiling device is not used, it can be used for a long time, and the production efficiency of a steel wire can be remarkably improved. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing a configuration of a steel wire oil application device according to the present embodiment. FIG. 2 is a diagram showing a configuration of a conventional string suction and supply type oiling device. [Description of Signs] 1 steel wire, 2 oil, 10 oil application device for steel wire, 11 pulley, 11a groove, 1
1b Rotary shaft, 11c Support member, 11k hole, 11m
Hole opening, 11 s oil storage chamber, 12 tubular body,
12s hollow part of cylindrical body, 13 oil reservoir, 13a
Oil reservoir bottom, 14 base, 14a base oil inlet, 14b base hollow, 15 bearing, 16
screw.

Claims (1)

Claims 1. An oil reservoir for storing oil, and an oil storage chamber provided inside the oil reservoir so that a rotation axis of the oil reservoir is substantially vertical, and an outer periphery of the oil reservoir. A pulley having a plurality of holes formed in the groove formed therein and communicating with the oil storage chamber, one end of which is connected to a rotation shaft of the pulley, and the other end of which is a liquid of oil in the oil reservoir. A screw located below the surface, a tubular body that has a hollow portion that communicates with the upper end of the oil storage chamber and that houses the screw, and that rotatably supports the pulley, and sucks the oil from the oil reservoir. Characterized in that the oil is injected from the hole to supply the oil to the wire passing through the groove.