JPH06146183A - Covered material body for producing steel rope - Google Patents

Abstract

PURPOSE:To obtain a covered material body for producing a wire rope, capable of preventing the wetting such as an oiling agent from unevenly distributing and the oiling agent from exuding to the rope surface by surely and uniformly supplying the oiling agent, etc., in the required minimum amount to the interior of the rope. CONSTITUTION:A semisolid oiling agent 1 is formed into a continuous rodlike body and the periphery of the rodlike body is wrapped in a tapelike nonwoven fabric film 2 or a synthetic resin film, etc., having plural slits 3 formed in the longitudinal direction to constitute a covered body. The resultant covered body, together with a wire, is then twisted to pass the oiling agent, etc., through the film to be uniformly filled and sealed in the interior of the prepared wire rope.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is necessary for manufacturing steel ropes, such as solid or semi-solid oil agents, which can be conveniently used for manufacturing wire bundles, in manufacturing wire ropes (hereinafter referred to as steel ropes). The present invention relates to a coating body coated with a material.

[0002]

2. Description of the Related Art In the production of wire ropes, cables, etc., it is necessary to apply a protective oil uniformly not only on the surface but also to the inner central strands of each strand.
Since this protective oil is a solid or semi-solid oil at room temperature in terms of the required protective performance, it is usually heated and fluidized to perform a so-called coating operation in order to uniformly apply it to each wire surface. . That is, immediately before each wire is twisted at the voice port of the rope making machine, the oil agent is sprayed onto the wire by the heating injection type oil supply device to apply the oil. But,
According to this method, there is a problem that the working environment is deteriorated, such as pollution of various facilities due to scattering of the oil agent. In order to eliminate such inconvenience, the present applicant has already proposed a method for encapsulating and encapsulating a wire rope with an oil agent or the like by using an encapsulating material for manufacturing a wire rope or the like and an encapsulating material (Japanese Patent Publication No. 50-7
(See Japanese Patent Publication No. 664 and Japanese Patent Publication No. 47-34245). These inventions are those in which a material such as a wire rope oil agent is enclosed in a large number of continuous small chambers divided by a film-like polymer material, and the whole shape is formed into a string shape or a ribbon shape. , The small chambers are ruptured by the twisting pressure in sequence and twisted together with the wires.

[0003]

The above method is one in which the internal pressure is applied by utilizing the twisting pressure, and it has an advantage that the oil can be filled with oil at room temperature without heating a semi-solid oil agent or the like. is there. However, this method has the following problems. Since the enclosed body is twisted while sequentially rupturing the sealed small chambers by the twisting pressure in a stepwise manner, the oil supply portions are scattered, and the wetting of the oil agent is apt to be biased only in the direction in which the small chambers are broken. Especially when the wire rope has a large diameter, it may leach up to the rope surface. Such a thing is not preferable in the present day when a so-called clean rope in which the oil agent is hardly leached on the rope surface and does not drip during use is particularly required. In addition, the uneven distribution of wetness leads to partial rusting. In order to rupture the small chamber, it is necessary to use a tube containing a volume of oil agent larger than the volume of the wire gap, but since it is a tube with a separate small chamber formed, leaching on the rope surface is prevented. It is difficult to select a tube for refueling an appropriate amount that can be avoided, and it does not go as calculated. If combined with the above, the amount of oil will become excessive and a large amount of leaching will occur on the rope surface. If the volume of oil in the tube is smaller than the volume of the wire gap, the small chamber will not rupture reliably, resulting in incomplete wetting and partial rusting. In particular, in the case of small diameters and ultrafine diameters, it is difficult to select them, and a portion that does not burst easily occurs. The present invention has been made in order to solve the above problems, it is possible to reliably and uniformly supply the minimum necessary oil agent and the like inside the rope, uneven wetting of the oil agent,
An object of the present invention is to provide a material coating for manufacturing steel rope, which can prevent the oil agent from leaching onto the rope surface.

[0004]

The present inventor has arrived at the present invention as a result of earnest research to solve the above-mentioned problems. That is, the present invention relates to a steel rope in which a solid or semi-solid oil agent or the like is formed into a continuous rod-shaped body, and the circumference of the rod-shaped body is covered with a tape-shaped film through which the oil agent or the like can pass by pressurization. It is a material coating for manufacturing. In the present invention,
The heat-sealing, sealing means using adhesive, etc. are not used for coating, but the tape-like film is adhered to the oil agent and wrapped (wrapped) by the adhesive force of the oil agent itself, but if necessary. The mating portion and the like may be sealed together. The tape-like film used in the present invention allows an oil agent or the like to pass therethrough under pressure, that is, when an external pressure is applied while the oil agent or the like is covered with the film, the oil agent or the like inside passes through the film and leaches to the outside. Is something that can be done.
For example, a non-woven fabric having a porous structure, a film having a plurality of slits or pores formed therein, and the like can be mentioned.

[0005]

[Function] A solid or semi-solid oil agent or the like is formed into a continuous rod-shaped body, and the periphery thereof is covered with a tape-like film through which the oil agent or the like can pass by pressure, and the tape-like film is formed by the adhesive force of the oil agent. The film is adhered to the oil agent and wrapped. When such a covering is twisted together with the strands, the oil in the contents is
After passing through the coated tape-like film, the film is extruded continuously and easily in all directions to wet the wire gap evenly.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a material coating for manufacturing a steel rope according to the present invention. FIG. 2 is a plan view showing an example of the tape-shaped film 2 before coating. The solid or semi-solid oil agent 1 is formed into a continuous rod-shaped body, and the periphery of the rod-shaped body is covered with a tape-shaped film 2 (nonwoven fabric) so as to be wrapped. The diameter of the rod-shaped oil agent 1 is
Usually about 1 to 5 mm, but the purpose of the steel rope produced,
It can be appropriately set according to the application. The cross section may be a polygonal shape such as a triangle in addition to the circular shape.

The tape-shaped film 2 is not harmful to the properties of the wire, is harmless and has a certain strength, and has a porous structure material such as a thin non-woven fabric or a synthetic resin,
It can be appropriately selected from paper, cloth, metal foil, composites thereof, and the like. It is preferable that the thickness is 0.1 mm or less because it is flexible. As the synthetic resin film, for example, a polyethylene film which has been strengthened particularly in the longitudinal direction to be easily tearable in the longitudinal direction (thickness 10
˜30 μm) and the like. Tape-shaped film 2
Is preferably used so that the circumference of the continuous rod-shaped oil agent 1 is just wrapped, that is, the width is the same as or slightly larger than the circumference of the rod-shaped body, and the seam of the film 2 is the longitudinal direction of the rod-shaped body. Cover so as to follow. Usually, the oil agent or the like is extruded as a continuous rod-shaped body by an extruder, and then the oil agent 1 is coated by mechanical means. In the case of a non-woven fabric or the like, it can be used as it is, but when a synthetic resin film or the like having no porous structure is used, for example, as shown in FIG. 2, a tape-shaped film 2 is provided with a plurality of slits 3 in the longitudinal direction. Or, a plurality of pores are provided. When twisted together with the strands, the slits 3 are opened and the internal oil agent and the like are pushed out in all directions, so that the strands can be evenly wetted. Furthermore, since the flexibility of the tape-shaped film itself is increased by providing such slits 3, even when producing a coating having an extremely small diameter of 1 mm or less, for example, the tape-shaped film can be easily wrapped around the oil agent and have a good adhesive state. Is maintained. The number, shape, size, arrangement, etc. of the slits or pores can be appropriately selected as necessary.

Since the surface of the coating body constructed as described above is coated with a film, it can be transported, transported and stored by winding it on a bobbin or the like. Then, when the steel rope is manufactured, by twisting the covering body together with the strand at the voice port of the rope making machine, the steel rope can be filled with the oil agent or the like and wetted. You may make it twist a plurality of coating bodies as needed. The oil in the coating is covered with a tape-shaped film, but it is not hermetically sealed. Therefore, even if a high twisting pressure is not applied when twisted together with the wire, the coated tape-shaped film It is easily extruded in all directions passing through itself or through openings such as slits, so that the wire gap is continuously and reliably and evenly wetted over the entire length of the rope. Therefore, it is possible to avoid uneven wetting and leaching of the rope surface due to excess oil. Further, since it is a rod-shaped body having a constant cross-sectional area, it is easy to select the necessary minimum suitable amount according to the purpose and application of various ropes.

Incidentally, in the production, there is a case where a coating body containing an oil agent having a volume smaller than the volume of the wire gap is used.
This is a case where the amount of the oil agent is regulated so that the oil agent in the inside does not seep out to the surface even when the rope is tensioned and the rope is squeezed (the diameter of the rope becomes thin) during use. In the present invention, it is not necessary to rupture a sealed small chamber due to a high twisting pressure as in the prior art. Therefore, it is possible to fill and moisturize with a smaller amount of oil agent than the wire porosity. However, in such a case, there may be an unwetted portion of the oil agent inside the rope, and that portion may rust, so the vaporizable rust inhibitor (oil agent and powdery state is present on the surface of the coating. JIS-Z-18
06 (see NP-20)), it is possible to reliably prevent rusting during storage.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments and can be appropriately modified and implemented within the scope of the gist of the present invention. For example, the rope core rope is used. It can be applied to oil impregnation of hemp fiber rope and can be impregnated into synthetic fibers that dislike heat, as well as treatment with two-component reactive synthetic resin, insulation material (paste), caulking material, etc. Wire rope, electric wire,
It can be applied to the production of steel ropes such as electric cables and PC anchors.

[0011]

As described above, according to the covering body of the present invention, the steel rope can be filled with oil at room temperature without heating the semi-solid oil agent or the like. Is played. Even if a high twisting pressure is not applied, the oil agent, etc. is easily extruded in all directions by passing through the coated tape-like film and uniformly wets the wire gap, so the minimum necessary oil agent etc. is inside the rope. Therefore, it is possible to reliably and uniformly supply oil, and it is possible to prevent uneven wetting of the oil agent or the like and prevent leaching of the oil agent or the like onto the rope surface. Even in the case of manufacturing a small-diameter or an ultra-fine diameter, it becomes easy to select the necessary minimum suitable amount according to the purpose and application. Therefore, in the present day when a so-called clean rope is particularly demanded, a high-quality steel rope that meets the demand can be obtained, which is extremely useful.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a material coating for manufacturing a steel rope.

FIG. 2 is a plan view showing an example of a tape-shaped film 2 before coating.

[Explanation of symbols]

 1 Oil agent 2 Tape film 3 Slit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ryuichi Suenaga 2-3-14, Nihonbashi Muromachi, Chuo-ku, Tokyo Within Tokyo Steel Co., Ltd. (72) Inventor Yoshiaki Yukawa 3-5, Nagatahigashi, Minami-ku, Yokohama-shi, Kanagawa 10 Yukawa engineer office

Claims (4)

[Claims] 1. A steel rope produced by forming a solid or semi-solid oil agent or the like into a continuous rod-shaped body and coating the periphery of the rod-shaped body with a tape-shaped film through which the oil agent or the like can pass by pressure. Material coating. 2. The material coated body for producing a steel rope according to claim 1, wherein a non-woven fabric is used for the tape-shaped film. 3. The material coating for manufacturing a steel rope according to claim 1, wherein the tape-shaped film is provided with a plurality of slits or pores. 4. The material coated body for producing a steel rope according to claim 1, wherein the surface of the coated body is provided with a volatile rust preventive agent.