JPS63162425A - Coil binding method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention effectively prevents damage to the end face of a coil wound with a wire rod during handling, and also prevents the collapse of the load. The present invention relates to a method of bundling wire coils that can be restrained.

Prior Art Wire products such as mild steel wire and stainless steel wire are rolled at a rolling mill to a desired wire diameter through a multi-stage rolling mill, and then cooled and wound in a refining process.

After further inspection, it is shipped from the factory in the form of a coil. In other words, in the refining process, coils made of wound wire are loaded onto coil conveying equipment that circulates within the factory.
Subjected to refining work such as inspection, terminal cutting, and bundling. This coil conveyance equipment is generally a conveyor with hooks extending horizontally, and as shown in FIG. The container is transported while being inserted and hooked onto the hook 16.

The coils carried out from the winding machine by the hook conveyor are not yet bundled, and the wound wire rods are not in close contact with each other. Therefore, the coil 10 is bound at a plurality of locations at equal intervals by a binding machine (not shown) (see FIG. 2), and shipped in this packaging to a customer. The binding material 24 for coil binding is roughly divided into a wire and a hoop made of high-tensile steel strip, and no matter which binding material is used, the binding material 24 is prevented from shifting in the circumferential direction with respect to the coil.

Measures have been taken to manually attach the anti-slip ring if necessary.

Problems to be Solved by the Invention As mentioned above, coils are tied by passing the coils suspended and supported by a hook conveyor through an automatic binding machine, and then delivered to a collection site by the conveyor. Therefore, until the bundled coils are shipped from the factory, there is little chance of abrasions or scratches on the end faces of the bundled coils, or that the bundles will collapse.

However, at the stage after being shipped from the factory, for example, when a large number of coils are loaded onto the bed of a truck and transported, or when the coils are handled after arriving at the customer, who is a secondary wire processor. Various types of scratches are often caused on wire rods, and these scratches generally have an adverse effect on the secondary processing of wire rods. For example, when handling cargo at a customer's site, the hook conveyor mentioned above is not used in many cases, but instead the band sling is wound around a coil and the sling is lifted and moved using a crane. There is.

When a coil is lifted with a sling in this way, stress is concentrated in one part of the coil, so the anti-slip IF
Even if a ring is applied, each wire that makes up the coil locally deforms into a fan shape, loosening the hoop, and causing the load to collapse from an orderly winding state.

If the packaging of the coil is disrupted in this manner, the wires may rub against each other or between the wire and a binding material such as a hoop, resulting in scratches. In addition, coils are collected and stored in large numbers horizontally or vertically, but during this collection process, the coils rub against each other or collide with each other. This may cause scratches or bumps on the skin. Furthermore, the hook of a crane may collide with the end face of the coil during cargo handling, resulting in scratches, and currently 70 to 80% of the scratches and other scratches are concentrated on the end face of the coil. Since these scratches seriously impede the secondary processing of the wire, it is necessary to use a grinder or the like to repair the scratches, which is a major burden that reduces work efficiency.

From the viewpoint of transportation and inventory management, it is preferable to bundle each coil (small bundle) and then bind the two coils with their end faces facing each other (large bundle).

The items are often shipped in this packaging, but in this case, if they are hoisted all at once using the aforementioned band slings, there is a tendency for the collapse of the items to further expand.

Therefore, attempts have been made to prevent the occurrence of scratches particularly concentrated on the end faces of the coils by bundling the end faces of the coils with corrugated cardboard sheets or plywood sheets. However, since corrugated cardboard sheets are weak against moisture and break easily, they are of no use if they are torn or torn by mechanical force during bundling, and it is still impossible to prevent scratches from occurring on the end surfaces. Furthermore, plywood also has a similar drawback in that it is prone to cracking due to its strength. Moreover, depending on the specifications, the coil may be completely immersed in oil in an oil tank while still in a bundled state, and the oil may be applied to the wire surface. It is also pointed out that there is a disadvantage that it becomes useless after that.

Purpose of the Invention The present invention has been proposed in view of the above-mentioned drawbacks that occur with coil bundling, and has been proposed to solve these problems. It is an object of the present invention to provide an effective means that can also prevent cargo from collapsing during cargo handling.

Means for Solving the Problems In order to overcome the above-mentioned problems and achieve the intended purpose, the coil binding method according to the present invention provides a coil binding method according to the present invention, in which at least one of the coils is bundled. A ring-shaped backing plate made of semi-rigid resin having appropriate elasticity and strength is attached to the end face, and the coil is bound together with this backing plate at a plurality of locations using a binding material.

Embodiments Next, the method for bundling wire coils according to the present invention will be described below with reference to preferred embodiments and the accompanying drawings. In the present invention, coils are bound with a binding material such as a hoop or a wire, and at that time, a patch plate made of a material satisfying the following conditions is attached to at least one end of the coil. The content is to unite in a state. In other words, the inventor has searched for a material that can be used as a backing plate, and as a result of actually making prototypes and conducting practical tests on various materials, the inventor has developed a material that effectively prevents scratches and other scratches that occur at the ends of the coil. In order to be able to be used repeatedly, the physical properties must have mechanical strength, a certain degree of rigidity, and appropriate elasticity, as well as comprehensive durability, impact mitigation properties, and economic efficiency. For example, it is possible to form a patch plate using a material such as foamed polystyrene, foamed polyethylene, or foamed polyurethane, and use it by applying it to the coil. I tried, but
Both were insufficient in strength.

As a specific example, the material made of the material cracks or tears when the binding material is pressed hard during binding, and the material made of the material cannot withstand repeated use and is uneconomical. It was found that it could not be used for practical use on the sole of the side due to problems such as absorption.

Therefore, we have created a material that satisfies the difficult conditions of having the mechanical strength mentioned above, having a certain degree of rigidity, and also having an appropriate amount of elasticity, as well as comprehensively possessing durability, impact mitigation properties, and economic efficiency. Further investigation has revealed that semi-rigid foamed polyethylene can be suitably used to achieve the aforementioned objectives. This semi-rigid polyethylene foam is basically a polyethylene foam, but because it has honeycomb-like closed cells, it has excellent physical strength such as shock absorbing properties, bending strength, and compressive strength, and has a certain degree of rigidity. It also has moderate elasticity, and has physical properties equivalent to 10 times that of conventional foamed polyethylene.

Furthermore, since it is chemically stable, it has excellent weather resistance and water resistance, and as mentioned above, since it is a closed cell, it has advantages such as no water absorption.

Note that this semi-rigid foamed polyethylene has physical properties in the following range.

As the above-mentioned semi-rigid polyethylene, for example, one commercially available from Toyo Jitsugyo Co., Ltd. under the trademark "Polymoc" can be suitably used. Note that semi-rigid polyethylene foam can be recycled by heating, so a plate-like sheet can be easily formed by collecting a large number of scraps and other edges of this material, pressurizing and heating them. Therefore, as shown in FIG. 3, it is possible to cut out a ring-shaped or donut-shaped patch plate 20 from this plate-like sheet 18.

In practice, since the diameter of the coil 10 is generally large, the diameter of the caul plate 20 is also proportionally large.

Therefore, it is uneconomical to cut out the entire backing plate 20 from one sheet 18, so it is necessary to cut out as many arcuate segments 20a in the shape of a quarter circle as possible from one sheet 18, as shown in FIG. is recommended. The arcuate segments 20a each made of a quarter circle are butted and bonded at each end to form a ring-shaped patch plate 20 as a whole. As shown in FIG. 5, if a connecting piece 22 having the shape shown in the figure and made of semi-rigid foamed polyethylene is brought into contact with the abutted portion so as to cross over the abutting portion, and the connecting piece 22 is bonded by means such as heat fusion, Strength is improved.

The patch plate 20 thus obtained is applied to at least one end (or both ends are possible depending on the customer's request) of the coil 10, as shown in No. 6 @. In addition, when using the caul plate 20 provided with the connection piece 22, it is preferable to attach it in such a manner that the connection piece 22 is oriented toward the end face of the coil 10.As for actual work, the above-mentioned coil conveyance In the equipment, the coils 10 before bundling are conveyed to an automatic bundling machine with a ring-shaped patch plate 20 hooked to a hook 16 of a conveyor. As a result, the coil 10, with the patch plate 20 attached to its end,
The automatic binding machine performs binding using wire or hoops. Note that after this bundling, there is no need to use the slippage prevention ring described above.

Since the backing plate 20 has appropriate elasticity due to its material properties, the edge of the backing plate 20 is deformed by bundling and comes into close contact with the coil 10, thus making it difficult for the load to collapse. Further, when the connecting piece 22 is provided on the backing plate 20,
The binding material 24 is bound so as to avoid the location where the connection piece 22 is provided. As a result, the connecting piece 22 is brought into closer contact with the end face of the coil 10, so that the effect of preventing the load from collapsing becomes even greater.

Further, when a plurality of coils 10, 10 are bundled together as described above, it is preferable to interpose a patch plate 20 between adjacent coils 10, as shown in FIG.

The effects obtained by the method according to the present invention are as follows.

■The material properties of the backing plate are selected to ensure sufficient strength, and it also has appropriate rigidity and elasticity, so it will not crack or tear during binding. In addition, even if the products are transported after bundling and subjected to harsh handling at the customer's doorstep, they will not be easily damaged or lost.

■Because it has shock absorption properties, even if the coils collide with each other during cargo handling or other external forces are applied, the coil ends are completely protected and will not be damaged.

■By being bundled, the backing plate adheres closely to the end face of the coil with appropriate elasticity, so it is possible to minimize the collapse of the load. The same applies when two or more coils are bundled together.

■Conventionally, after automatic tying, it was necessary to manually attach the anti-slip ring to the tying material off-line, which was extremely inefficient. However, in the present invention, automatic binding is achieved by simply hooking the backing plate onto the hook of the hook conveyor and passing it through the automatic binding machine, and there is no need to attach the slip prevention ring. Therefore, the efficiency of continuous work can be improved.

■It has strength and elastic restoring force, so it can be used repeatedly.
Even if it is damaged, it can be repaired again. Also, after collecting and using it several times,
It may also be used as a one-way disposable by attaching it to a coil destined for overseas export.

■It has excellent oil and water resistance, and does not absorb liquid, so it can be immersed in oil as a coil.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing how coils are transported while being hooked to hooks that hang down from traveling hangers supported on rails installed on the ceiling. Figure 2 is an explanatory diagram showing how coils are tied together at multiple locations at equal intervals. FIG. 3 is an explanatory plan view showing a state in which a ring-shaped backing plate is cut out from a plate-like sheet, and FIG. 4 is an explanatory plan view showing a state in which a large number of arc-shaped segments are cut out from a single sheet. The plan view, FIG. 5, shows arcuate segments butted together to form a ring-shaped caul plate. FIG. 7 is an explanatory plan view showing a state in which the strength is improved by abutting and adhering the connecting piece so as to cross over the abutting portion. Fig. 6 is a perspective view showing a state in which a ring-shaped backing plate is attached to one end of the coil and the coils are tied together at multiple locations. It is a perspective view which shows the state which interposed the patch plate in between. 10...Coil 20...Packing plate 20a...
・Arc-shaped segment 22... Connection piece 24... Binding material FIG, 1 FIG, 2 FIG, 6 n FIG, 3 FIG, 4 FIG, 5 Fu FIG, 7 UO

Claims (1)

[Scope of Claims] [1] When bundling coils of wire material, a ring-shaped patch plate made of semi-hard resin having appropriate elasticity and strength is attached to at least one end face of the coil. A coil binding method characterized in that the coil is bound together with the patch plate at a plurality of locations using a binding material. [2] The coil binding method according to claim 1, wherein the material of the ring-shaped backing plate is semi-rigid foamed polyethylene. [3] When simultaneously bundling a plurality of coils by butting their end faces together, the patch plate is applied to the end face of at least one of the coils, and the patch plate is also interposed between adjacent coils. The coil binding method according to claim 1 or 2, characterized in that the coils are bundled in this state and then bundled.