JP2014169122A - Wire binding body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress scratch generation accompanied with contact of wire material and a binding wire upon binding a wire bundle of a coil shape by using the binding wire, make it easy to loosen and rebind the binding wire, and make the binding wire cost lower.SOLUTION: A metal wire of a circular cross section is used as a binding wire 12, is wound over the area from the inner peripheral surface through the edge surfaces to the outer peripheral surface of a wire bundle 11, and both ends are connected by stranding on the axial direction edge part of the inner peripheral surface of the wire bundle 11. Since the binding wire 12 is of a circular cross section, the contacting area with the wire bundle 11 is smaller compared with a conventional article of a rectangle cross section like hoop and scratch generation can be suppressed. Loosening and rebinding of the binding wire 12 is easy by undoing and retightening of the connecting part 12a of the binding wire 12. Stranding operation is easy because the connecting part 12a is positioned on the axial direction edge part of the inner peripheral surface of the wire bundle 11. Since a metallic wire of general purpose is used as the binding wire 12, the cost is lower in comparison with an expensive steel band (hoop) etc.

Description

  The present invention relates to a wire bundle and a method for producing the same.

As shown in FIG. 4A, a metal wire such as a steel wire is bundled with a steel strip called a hoop 52 in a state of a wire bundle 51 wound in a coil shape, and shipped as a wire bundle 50. (See Patent Document 1).
As shown in FIG. 4B, the hoop 52 as a binding line has a rectangular shape with a flat cross section. The hoop 52 is wound from the inner peripheral surface of the coil-shaped wire bundle 51 to the outer peripheral surface through the end surface. Here, the two terminals of the hoop 52 cannot be connected by twisting together because they have a flat rectangular cross section. For this reason, the ends are brought into contact with each other on the outer peripheral surface of the bundle of wire rods, and are connected by a connector called a seal 53.

  In such a conventional wire bundle 50, the hoop 52 is rectangular with a flat cross section, and therefore, when the corner comes into contact with the wire, R is small (almost) and is easily scratched. Similarly, since the seal 53 connecting both ends of the hoop 52 is located on the outer peripheral side of the wire bundle, the seal 53 comes into contact with another adjacent wire bundle 51 by stacking up and down. Easily scratches metal wires. When scratches are generated on the metal wire as described above, the strength is lowered and the appearance is also deteriorated. Not only that, but in the worst case, the scratches act as a notch that becomes the starting point of fracture after the secondary processing such as wire drawing, which impairs the mechanical properties of the product.

In addition, since both ends of the hoop 52 are firmly fixed by the seal 53, it is very difficult to loosen or retighten it, without cutting it in order to release the binding. In particular, the wire bundle 51 is compressed by an impact during transportation to reduce its height, or the metal wire expands by a heating process such as subsequent annealing, and its diameter and height are increased. For this reason, it is required that the binding wire for binding the wire bundle 51 can be easily and quickly loosened or retightened in response to such expansion or contraction of the wire bundle 51.
Furthermore, the hoop 52 having an odd-shaped cross section is also expensive compared to a general metal wire having a circular cross section.

Japanese Utility Model Publication No.59-188802

  Therefore, the problem to be solved by the present invention is to suppress the generation of scratches caused by contact with the binding wire of the wire when binding the coil-shaped wire bundle with the binding wire, and loosen or retighten the binding wire. And to reduce the cost of the binding wire.

  In order to solve the above-described problems, in the present invention, a single wire or a stranded wire of a metal wire having a circular cross section is used as a binding wire for binding a wire bundle of metal wires, and this is an end surface from the inner peripheral surface of the wire bundle It was wound on the outer peripheral surface through the top and connected by twisting the two ends on the inner peripheral surface of the wire bundle.

  That is, the present invention as a wire bundle is a wire bundle formed by winding a metal wire in a coil shape, and is wound from the inner peripheral surface of the wire bundle to the outer peripheral surface through the end surface, and both ends thereof are A single wire or a stranded wire of a metal wire having a circular cross section as a binding wire connected by being twisted together on the inner peripheral surface of the wire bundle. Here, it is preferable that the both ends of the binding wire in the wire bundle are twisted together on the axial end of the inner peripheral surface of the wire bundle.

Moreover, this invention as a manufacturing method of a wire bundle bound product shall include the following processes.
A step of preparing a wire bundle formed by winding a metal wire into a coil shape.
A binding wire having a front portion, a center portion, and a rear portion that are movable in the axial direction of the wire rod bundle and are parallel to each other in the axial direction of the wire rod bundle that is rotatable between a parallel state and a perpendicular state. A step of preparing a guide for guiding.
A binding wire composed of a single wire or a stranded wire of a metal wire having a circular cross section is moved in the axial direction from the one end face side to the other end face through the guide through the inside of the wire bundle. The process of running along the circumference.
By rotating the guide that has passed through the inside of the wire bundle toward the other end surface of the wire bundle, the portion protruding in the axial direction from the inner peripheral surface of the wire bundle of the binding wire is bent, The process of keeping along the other end surface of a wire bundle.
By rotating the central portion of the guide toward the outer peripheral surface of the wire bundle with respect to the rear portion, the portion of the binding wire protruding in the outer diameter direction from the other end surface of the wire bundle is bent, and the wire The process of running along the outer periphery of the bundle.
By rotating the front portion of the guide toward the one end surface of the wire bundle with respect to the central portion, the portion of the binding wire that protrudes in the axial direction from the outer peripheral surface of the wire bundle is bent, and the wire bundle The process along the one end face.
The ends of the binding wires protruding in the inner diameter direction from one end surface of the wire bundle and the ends of the binding wires protruding in the axial direction from the inner peripheral surface of the wire bundle adjacent thereto are connected by twisting together. Process.

  As described above, since both ends of the binding wire are connected by twisting together, it is possible to easily loosen or retighten the binding wire by unscrewing or tightening.

In addition, since the binding wire is a single wire or a stranded wire with a circular metal cross section, the contact area with the wire bundle is smaller than that of conventional hoops, and the occurrence of scratches on the metal wire of the wire bundle due to the contact is suppressed. Is possible. In particular, the connection location by twisting together the ends of the binding wire that easily damages the wire bundle is located on the inner peripheral surface of the wire bundle, making it difficult to contact the adjacent wire bundle and further suppressing the generation of scratches. It is possible.
Since a general-purpose metal wire having a circular cross section is used as a binding wire, the cost is lower than that of a hoop having an irregular cross section.

(A) is a perspective view of the wire bundle unit of embodiment, (b) is sectional drawing of the metal wire as a binding wire. It is the schematic of the manufacturing method of the wire-bonded body of embodiment. It is the schematic of the manufacturing method of the wire-bonded body of embodiment. It is the schematic of the manufacturing method of the wire-bonded body of embodiment. It is the schematic of the manufacturing method of the wire-bonded body of embodiment. It is the schematic of the manufacturing method of the wire-bonded body of embodiment. It is the schematic of the manufacturing method of the wire-bonded body of embodiment. (A) of a terminal connector is a side view, (b) is a top view, (c) is a front view. (A) is a perspective view of a conventional wire bundle, and (b) is a cross-sectional view of a hoop as a binding wire.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
A wire bundle 10 of the embodiment shown in FIG. 1A includes a wire bundle 11 formed by winding a metal wire into a coil shape (substantially cylindrical shape), and a plurality of bundle wires 12 that bundle the wire bundle 11; Consists of.

The wire bundle 11 is the same as the conventional one. For example, a wire rod is rolled into a continuous coil shape by hot rolling and further pressurized from the axial direction by a compressor to increase the filling rate. Is used.
Although the kind of metal wire, the wire diameter, etc. are not specifically limited, As a kind, steel wires, such as a high carbon steel wire, can illustrate 5-10 mm as a wire diameter, respectively. The dimensions and weight of the coil-shaped wire bundle 11 are not particularly limited, but the outermost diameter is 1.0 to 2.0 m, the axial length is 0.5 to 1.5 m, and the weight is 0.5 to 1.5 t can be exemplified. The shape of the metal wire is not limited to a substantially circular cross section, and may be a deformed cross section, for example.

The binding wire 12 is a metal wire and has a substantially circular cross section as shown in FIG. The type, diameter, etc. of the metal wire are not particularly limited. Examples of the type include iron wires such as annealed iron wires, and examples of the wire diameter include 3-4 mm. A commercially available relatively inexpensive metal wire having a circular cross section can be used as such a binding wire 12.
Moreover, in this embodiment, although the metal wire as the binding wire 12 is a single wire, it may be a stranded wire formed by twisting a plurality of metal wires having a substantially circular cross section. As such a stranded wire, a commercially available relatively inexpensive metal stranded wire can be used as a binding wire.

The number of the binding wires 12 is not particularly limited. However, if the number is too small, the binding force becomes insufficient. If the number is too large, it takes time for the binding work and the cost increases due to the increase in the number. Moreover, although the space | interval between the binding wires 12 is not specifically limited, If the space | interval is non-uniform | heterogenous, since a biasing force will arise, equal intervals are preferable.
In FIG. 1A, four binding wires 12 are arranged in the circumferential direction of the wire bundle 11 at an equal interval of about 90 degrees.

As shown in FIG. 1A, each binding wire 12 is wound from the inner peripheral surface of the coil-shaped wire bundle 11 to the outer peripheral surface through the end surface. Then, both ends of the binding wire 12 are connected by being twisted on the inner peripheral surface of the wire bundle 11, more specifically, on the axial end portion of the inner peripheral surface, thereby forming the connection portion 12a. Yes.
In order to facilitate connection by such twisting, the binding wire 12 is preferably a metal wire that is relatively excellent in shape retention in a bent state, such as the above-described annealed iron wire.
The binding wire 12 can be easily loosened by untwisting the connecting portion 12a, and the binding wire 12 can be retightened easily by tightening the twisting of the connecting portion 12a. . Therefore, when the diameter of the wire bundle 11 is increased or decreased due to various factors such as temperature change, the binding force of the binding wire 12 can be quickly and easily handled.

  As shown in FIG. 1A, the connecting portion 12 a of the binding wire 12 is formed by twisting, and thus slightly protrudes from the outer surface of the wire bundle 11. For this reason, although there exists a possibility that an abrasion may generate | occur | produce when another member contacts, it is located on the inner peripheral surface instead of on the outer peripheral surface etc. of the wire bundle 11. Therefore, even when a plurality of wire bundles 11 are stacked one above the other, a situation in which scratches are generated due to contact with other adjacent wire bundles 11 is avoided.

In particular, in the present embodiment, the connecting portion 12a of the binding wire 12 is located on the axial end of the inner peripheral surface of the wire bundle 11, that is, in the vicinity of the boundary between the inner peripheral surface and the end surface. Therefore, when connecting both ends of the binding wire 12, twisting is performed in a state where one end is along the inner peripheral surface of the wire bundle 11 and the other end is along the end surface of the wire bundle 11, and both are substantially orthogonal. To match.
Therefore, compared to the case where both ends are parallel along the inner peripheral surface of the wire bundle 11 and exist at a position deeper from the opening of the end face of the wire bundle 11, the twisting operation is markedly different. It has become easier.

Incidentally, the inventors of the present invention have a wire bundle 11 made of a high carbon steel wire with a wire diameter of 8 mm, an outermost diameter of the coil of about 1.4 m, an axial length of about 1 m, and a weight of about 1 t. As a binding wire 12, a single wire of an annealed iron wire having a wire diameter of 3.2 mm was used, and the four portions of the wire rod bundle 11 were bound with the binding wire 12 as shown in FIG.
As a result, it was confirmed that the packing form did not change and had the same binding force as that of the wire bundle 50 bound by the conventional hoop 52.

The configuration of the wire bundle of the embodiment is as described above. Next, the manufacturing method will be described with reference to FIGS. 2A to 2F.
First, as a preparation stage for carrying out the wire rod binding method of the embodiment, a wire rod bundle 11, a guide 20 and a binding wire coil 30 formed by winding a metal wire rod into a coil shape are prepared.

The guide 20 is movable in the axial direction of the wire bundle 11, and includes a front part 21, a central part 22, and a rear part 23 that are arranged in parallel in the axial direction of the wire bundle 11.
The front part 21 is rotatable with respect to the central part 22 and the central part 22 is rotatable with respect to the rear part 23 from a parallel state to a vertical state. The front portion 21, the central portion 22, and the rear portion 23 may be connected to each other so as to be rotatable by a hinge or the like, or may be separated.
Further, the shape of the guide is not limited to the flat shape as schematically shown in FIGS. 2A to 2F, and may be a shape in which, for example, rollers are arranged in parallel.

The binding wire coil 30 is configured by winding a binding wire 12 as a metal wire having a substantially circular cross section in a coil shape, and the binding wire 12 can be pulled out by a guide 20.
Further, the bundling coil 30 is attached with a straightening roller 31 and a cutter 32 having the same structure as that used in general. The drawn binding wire 12 is straightened by straightening by the straightening roller 31 and cut by the cutter 32 to form a terminal.

  First, as shown in FIGS. 2A to 2B, the guide 20 holding the front end e1 of the binding wire 12 is moved in the axial direction of the wire bundle 11 (indicated by a white arrow in FIG. 2B). As a result, the binding wire 12 is pulled out from the binding wire coil 30 while being straightened by the straightening roller 31. Then, as the guide 20 passes through the inside of the wire bundle 11 from the one end face side to the other end face side, the binding wire 12 is caused to run along the inner peripheral face of the wire bundle 11.

  Next, as shown in FIGS. 2B to 2C, the entire guide 20 is rotated about 90 degrees toward the other end face of the wire bundle 11 (indicated by a white arrow in FIG. 2C). As a result, of the drawn binding wire 12, the portion that protrudes in the axial direction from the inner peripheral surface of the wire rod bundle 11 along the guide 20 is inserted along the other end surface of the wire rod bundle 11. Make it.

  Further, as shown in FIGS. 2C to 2D, the central portion 22 of the guide 20 is rotated so as to be substantially perpendicular to the rear portion 23 (indicated by a white arrow in FIG. 2D). Thereby, the part which protrudes in the outer diameter direction from the other end surface of the wire rod bundle 11 among the drawn binding wires 12 is made to run along the outer peripheral surface of the wire rod bundle 11.

Subsequently, as shown in FIGS. 2D to 2E, the front portion 21 of the guide 20 is rotated so as to be substantially perpendicular to the central portion 22 (indicated by a white arrow in FIG. 2E). Thereby, the part which protrudes from the outer peripheral surface of the wire bundle 11 to the axial direction among the drawn binding wires 12 is made to follow the one end surface of the wire bundle 11.
In this state, the drawn binding wire 12 is separated from the binding wire coil 30 by the cutter 32 to form the rear end e2.

  2E to 2F, among the drawn binding wires 12, the front end e1 projecting in the inner diameter direction from one end face of the wire bundle 11 and the inner peripheral surface of the wire bundle 11 adjacent thereto. The rear terminal e2 protruding in the axial direction is overlapped with each other in a substantially orthogonal state. In this state, the front terminal e1 and the rear terminal e2 are twisted and connected by the terminal connector 40. At this time, as indicated by the white arrow in FIG. 2F, the guide 20 is moved away so as not to obstruct the connection work. Thus, the wire bundle 10 of the embodiment is completed.

Here, the details of the terminal connector 40 will be described with reference to FIG. The terminal connector 40 has a columnar head 41 and a handle 42. The head 41 has a groove that passes through the axis thereof in the diametrical direction and opens at two locations on the upper surface and the peripheral surface. 41a is formed.
As shown in FIG. 3B, the depth of the groove 41 a is shallower toward the axis (center) of the head 41, and the bottom surface of the groove 41 a on one side with respect to the axis of the head 41 is The bottom surface of the groove 41a on the other side with respect to the shaft center intersects at a predetermined angle on the shaft center.

As described above, the terminal connector 40 has a V-shaped groove bottom line of the groove 41a of the head portion 41. Therefore, as shown in FIG. , E2 is maintained while maintaining the crossed state.
Thus, when the terminal connector 40 is rotated around its axis while the both ends e1 and e2 of the binding wire 12 are accommodated in the groove 41a of the head 41, the ends of the binding wire 12 are twisted and connected. become. The terminal connector 40 may be rotated manually or automatically by being attached to an electric tool.

  It should be considered that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications and variations within the scope and meaning equivalent to the terms of the claims.

  For example, in the embodiment, the position of the connecting portion of the binding wire is on the axial end of the inner peripheral surface of the wire bundle, but is not limited thereto, and is arranged at an arbitrary position on the inner peripheral surface of the wire bundle. Is possible.

DESCRIPTION OF SYMBOLS 10 Wire bundle body 11 Wire bundle 12 Binding wire 12a Connection part 20 Guide 21 Front part 22 Center part 23 Back part 30 Binding wire coil 31 Straightening roller 32 Cutter 40 Terminal connection tool 41 Head 41a Groove 42 Pattern 50 Conventional Wire bundle 51 wire bundle 52 hoop 53 seal e1 front end e2 rear end

Claims (3)

A wire bundle formed by winding a metal wire into a coil shape;
A metal wire having a circular cross section as a binding wire that is wound on the outer peripheral surface from the inner peripheral surface of the wire bundle through the end surface and twisted on the inner peripheral surface of the wire bundle. A wire bundle comprising a single wire or a stranded wire.   2. The wire bundle according to claim 1, wherein both ends of the binding wire are twisted and connected on an axial end portion of an inner peripheral surface of the wire bundle. Preparing a wire bundle formed by winding a metal wire into a coil shape;
A binding wire having a front portion, a center portion, and a rear portion that are movable in the axial direction of the wire rod bundle and are parallel to each other in the axial direction of the wire rod bundle that is rotatable between a parallel state and a perpendicular state. Preparing a guide for guiding
A binding wire composed of a single wire or a stranded wire of a metal wire having a circular cross section is moved in the axial direction from the one end face side to the other end face through the guide through the inside of the wire bundle. A process along the circumference,
By rotating the guide that has passed through the inside of the wire bundle toward the other end surface of the wire bundle, the portion protruding in the axial direction from the inner peripheral surface of the wire bundle of the binding wire is bent, A process of extending along the other end surface of the wire bundle;
By rotating the central portion of the guide toward the outer peripheral surface of the wire bundle with respect to the rear portion, the portion of the binding wire protruding in the outer diameter direction from the other end surface of the wire bundle is bent, and the wire A process along the outer peripheral surface of the bundle;
By rotating the front portion of the guide toward the one end surface of the wire bundle with respect to the central portion, the portion of the binding wire that protrudes in the axial direction from the outer peripheral surface of the wire bundle is bent, and the wire bundle A process along one end face of
The ends of the binding wires protruding in the inner diameter direction from one end surface of the wire bundle and the ends of the binding wires protruding in the axial direction from the inner peripheral surface of the wire bundle adjacent thereto are connected by twisting together. A bundling method including a process.

Images