JP2001150023A - Laying type winding equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding equipment which keeps high accuracy in measurement, makes roll's life longer and cuts costs by reducing rolls in number. SOLUTION: In the railing type winding equipment which releases a wire rod 2 rolled through a finishing rolling machine 1 by winding in a ring form through a laying head pipe 3, a bending roll 10 is installed at an entrance of the laying head pipe 3. The bending roll 10 is equipped with a first roll 11 placed above the wire rod 2 and spaced below the wire rod 2 to a certain extent in the pass line direction, two second rolls 12a and 12b each placed separately and symmetrically at the center of the first roll 11 in the pass line direction, and a peripheral groove 13 formed at circumference of the first roll 11 for guiding the wire rod 2 in a pass line direction, and enables to bend the wire rod 2 by moving the first roll 11 towards the wire rod 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laying type winding apparatus for discharging a wire rod rolled by a finishing mill while winding it in a ring shape by a laying head pipe.

[0002]

2. Description of the Related Art As a conventional laying type winding apparatus of this type, for example, the apparatus described in Japanese Patent Application Laid-Open No. 61-78512 is known. As shown in FIG. 6, this winding equipment is configured to use a wire 2 that has passed through the final stand of the hot finishing mill 1.
Is released while being wound up in a ring shape by the laying head pipe 3, and is spread on a non-concentrically overlapping coiled wire rod 4, and is conveyed by a conveyor 5 arranged below the laying head pipe 3. The coil is converged by a coil concentrating device 6 disposed at the end of the conveyor 5.

[0003] A pinch roll 7 is disposed on the entrance side of the laying head pipe 3. The role of the pinch roll 7 is to control the rotation speed to control the wire 2 between the finishing mill 1 and the pinch roll 7. Is to maintain the tension applied to the plate close to no tension. In other words, the pinch roll 7 cuts off the influence of the tension from the upstream thereof, and influences the coil shape of the coiled wire 4 discharged from the laying head pipe 3 by the pinch roll 7 and the laying head pipe 3. By controlling the tension between them uniformly and appropriately, it is possible to manufacture a wire having a good coil shape over the entire length. When the rear end of the wire 2 leaves the pinch roll 7, the tension applied to the wire 2 in front of the laying head pipe 3 changes. The roll 7 is installed close to the laying head pipe 3.

[0004]

However, in the above-mentioned conventional laying type winding equipment, the wire rod 2 is directly applied to the upper and lower rolls 7a and 7b of the pinch roll 7 disposed on the entrance side of the laying head pipe 3. When the pinch roll 7 is pressurized, the diametrical deformation Δd of the wire 2 is increased and the dimensional accuracy is reduced as shown in FIG. In addition to the inconvenience, the surfaces of the rolls 7a and 7b above and below the pinch roll 7 are liable to wear and surface roughness, shortening the life of the roll, and requiring frequent replacement of the roll. Occurs.

The upper and lower rolls 7 of the pinch roll 7
A circumferential groove 8 having an arc-shaped cross section for guiding the wire 2 is formed on the surface of each of the wires a and 7b. Although it is designed to cope with different wire rods, it is necessary to replace the upper and lower rolls when winding a wire rod having a diameter that does not correspond to the r dimension of the circumferential groove 8, and the above-mentioned roll life is short. There is an inconvenience that the number of replacement rolls increases and the cost increases.

The present invention has been made in order to solve such inconvenience, and it is possible to ensure excellent dimensional accuracy, extend the life of a roll, and reduce the number of rolls to be held. It is an object of the present invention to provide a laying-type winding device that can perform the laying.

[0007]

In order to achieve the above object, a laying type winding apparatus according to the present invention discharges a wire rod rolled by a finishing mill while winding it in a ring shape by a laying head pipe. In the laying-type winding facility, a bending roll is arranged on the entrance side of the laying head pipe, and the bending roll includes at least one first roll arranged on one side in a radial direction of the wire, and a diameter of the wire. A predetermined gap in the pass line direction between the first roll and the other roll in the other direction, and at least the first roll is separated from each other in the pass line direction such that the first roll is located at an intermediate position. Two second rolls, and a circumferential groove formed on an outer peripheral portion of at least one of the first roll and the second roll to guide a wire in a pass line direction; Provided, characterized in that so as to curve the 該線 material by moving towards at least one roll of said first roll and said second roll to the wire.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory schematic view for explaining a laying type wind-up equipment which is an example of an embodiment of the present invention, and FIG. 2 is a diagram in which a wire is bent by lowering a first roll after passing the bending roll. FIG. 3 is a cross-sectional view taken along the line AA of FIG.
FIG. 4 is a graph showing the relationship between the pressure of the pinch roll and the amount of deformation of the wire, and FIG. 5 is a graph showing the relationship between the amount of bending of the bending roll and the amount of deformation of the wire. In this embodiment, the only difference is that a bending roll is employed in place of the pinch roll of the laying type winding equipment described in the conventional example (FIG. 6). The same reference numerals are given to the same parts in the drawings, and description thereof is omitted.

In FIG. 1, reference numeral 10 denotes a bending roll disposed on the entrance side of the laying head pipe 3, and the bending roll 10 is connected to a driving device whose rotation speed can be controlled above the wire 2; In addition, one first roll 11 arranged so as to be able to move up and down and two second rolls arranged apart from each other in the direction of the pass line so that the first roll 11 is located below the wire 2 in the middle. 1
2a and 12b.

In this embodiment, the first roll 11 is driven, and a peripheral groove 13 having an arc-shaped cross section for allowing the wire 2 to pass through the center of the pass line is formed in the outer periphery of the roll, and the position is fixed. (See FIG. 3). The radius r of the circular arc of the circumferential groove 13 is slightly larger than the radius R of the wire 2 so that it can accommodate wires having different diameters. Further, the second rolls 12a and 12b are not driven, and the outer peripheral portions of the rolls are flat so as to be able to accommodate the wire rods 2 of all diameters. The core has a predetermined gap L (see FIG. 2), and the “roll open” allows the wire 2 to freely pass through the gap with the first roll 11.
(See the left diagram of FIG. 2).

As shown in FIG. 2, when a sensor or the like detects that the leading end of the wire 2 has passed through the bending roll 10, a control device (not shown) raises and lowers the first roll 11 (see FIG. 2). (Not shown) to lower the first roll 11 to the “roll closed” position (see the right diagram in FIG. 2), thereby bending the wire 2 and
Is supplied to the downstream laying head pipe 3 by the driving force of the first roll 11. At this time, by controlling the rotation speed of the first roll 11, an action equivalent to that of the conventional pinch roll method is exerted.

As described above, in this embodiment, since the bending roll method is used, the wire 2 can be prevented from being directly caught by the first roll 11 and the second rolls 12a and 12b. That is, since the wire resistance is given by bending the wire 2 and the contact surface becomes longer, the rotational driving force of the first roll 11 is reduced even if the surface pressure received from the respective bending rolls by the wire 2 is small. 2 fully transmitted. As a result, since the received surface pressure is small, the amount of deformation Δd in the radial direction of the wire 2 is reduced, so that excellent dimensional accuracy can be secured, and a highly accurate wire product can be manufactured.

Since the load on the wire 2 is reduced, the first roll 11 and the second rolls 12a, 12b
Wear and surface roughness are unlikely to occur on the surface, and as a result, the life of the roll is prolonged, and the number of roll replacements can be reduced. Further, since it is sufficient that the circumferential groove 13 for guiding the wire 2 in the pass line direction is formed only on the first roll 11, only one roll is required when winding a wire having a diameter not corresponding to the dimension r of the circumferential groove 13. Can be replaced, and in combination with the above-mentioned prolonged life of the roll, the number of replacement rolls can be greatly reduced, and the cost can be reduced.

In the above embodiment, the case where the tension between the bending roll 10 and the finishing mill 1 is controlled to be constant by controlling the rotation speed of the bending roll 10 by driving the bending roll 10 is described. However, instead of this, the tension between the bending roll 10 and the finishing mill 1 may be controlled to be constant by adjusting the bending amount B without driving the bending roll 10. .

In the above-described embodiment, the first roll 11 is located above the wire 2 and the second rolls 12a, 12 are located below the wire.
Although the case where 2b is arranged is taken as an example, this is not always necessary. For example, the second rolls 12a and 12b may be arranged above the wire 2 and the first roll 11 may be arranged below. Good. Furthermore, in the above-described embodiment, the case where the first roll 11 is moved toward the wire 2 to bend the wire 2 is taken as an example.
The wire 2 may be curved by moving the second rolls 12 a and 12 b toward the wire 2.

Further, in the above-described embodiment, the case where one first roll 11 is disposed between the two second rolls 12a and 12b is taken as an example. However, the present invention is not limited to this. Plural first rolls 1 between second rolls 12a and 12b
1 may be arranged, or three or more second rolls may be arranged, and one or two or more first rolls may be arranged between adjacent second rolls.

Further, in the above-described embodiment, the case where the circumferential groove 13 for guiding the wire 2 in the pass line direction is formed in the first roll 11 is taken as an example. The circumferential groove 13 may be formed in the second rolls 12a and 12b.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A laying take-up facility in which a pinch roll 7 is arranged on the entrance side of a laying head pipe 3 (see FIG. 6) is a conventional example, and the radial deformation of the wire 2 when the pressure of the pinch roll 7 is changed. The amount Δd is shown in FIG. 4, and a wire rod in a case where the bending amount is changed using a laying take-up facility (see FIG. 1) in which a bending roll 10 is disposed on the entrance side of the laying head pipe 3 as an embodiment of the present invention. FIG. 5 shows the radial deformation amount Δd of No. 2. The radius R of the wire 2 is 2.75 mm for both the conventional example and the comparative example, and the circular radius r of the circumferential groove 8 of the pinch roll 7 is one type of 3 mm.
Circumferential groove 13 of first roll 11 of bending roll 10
Are of two types, 3 mm and 4 mm, and the pitch L between the second rolls 12a and 12b is 200 mm.
Other conditions were the same for both the conventional example and the embodiment.

As is clear from FIGS. 4 and 5, the deformation amount Δd of the wire rod 2 of the embodiment is significantly smaller than that of the conventional example.
It can be seen that excellent dimensional accuracy can be secured. Here, FIG.
In the above, the bending amount is preferably set to 2 to 5 mm. Further, in the case of the present invention shown in FIG. 5, even if the radius r of the circumferential groove 13 of the first roll 11 is increased from 3 mm to 4 mm, the radial deformation amount Δd of the wire 2 is larger than that of the conventional example shown in FIG. Small enough. That is, conventionally, a wire having an arc radius r of 3 mm and a diameter of 5.5 mm to 6.0 mm is used. However, in the present invention, since the arc radius r can be 4 mm, the diameter is 5.5 mm to 8.0 mm. Used for
The amount of deformation Δd in the radial direction of the wire becomes smaller than in the past, and the amount of the type of roll having a circumferential groove can be greatly reduced.

[0020]

As is clear from the above description, according to the present invention, excellent dimensional accuracy can be ensured, the life of the roll can be extended, and the number of rolls held can be reduced. Thus, the effect that cost can be reduced can be obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory schematic diagram for explaining a laying type winding facility as an example of an embodiment of the present invention.

FIG. 2 shows a state after a wire rod has passed through a bending roll;
It is an explanatory view for explaining a situation in which a roll is lowered and a wire is bent.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a graph showing the relationship between the pressure of a pinch roll and the amount of deformation of a wire.

FIG. 5 is a graph showing a relationship between a bending amount of a bending roll and a deformation amount of a wire.

FIG. 6 is an explanatory schematic view for explaining a conventional laying type winding facility.

FIG. 7 is a sectional view taken along the line BB of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Finish rolling mill 2 ... Wire 3 ... Laying head pipe 10 ... Bending roll 11 ... 1st roll 12a, 12b ... 2nd roll 13 ... Circumferential groove

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takao Ogawa 1-chome, Kawasaki-dori, Mizushima, Kurashiki-shi, Okayama Pref.

Claims (1)

[Claims] 1. A laying type winding apparatus for discharging a wire rod rolled by a finishing mill while winding it into a ring shape by a laying head pipe, wherein a bending roll is arranged on an entrance side of the laying head pipe. The bending roll has a predetermined gap in the pass line direction between at least one first roll disposed on one side in the radial direction of the wire and the first roll on the other side in the radial direction of the wire. And at least two second rolls spaced apart from each other in the pass line direction such that the first roll is located at an intermediate position, among the first roll and the second roll. A circumferential groove formed on an outer peripheral portion of at least one of the rolls to guide the wire in a pass line direction, wherein at least one of the first roll and the second roll is wire-bonded. Laying Shikimakito equipment being characterized in that so as to curve the 該線 material by moving towards.