JPH0472209A - Device for feeding longer material - Google Patents

Abstract

PURPOSE:To accurately detect the deflection of a longer material as well as to prevent the nonuniformity in heating by making up a carrying roller in such a way as to arrange a great number of paired conical rollers the axial lines of which are crossed at a specified angle with an axis intersected at a right angle with the axial line of the material on a plane surface in a feed device for the material in a continuously heating furnace. CONSTITUTION:The whole of carrying rollers 3 carrying a longer material 1 is made up in such a way that a great number of paired conical rollers 4a and 4b butt against each other. The axial lines 6a and 6b of the paired conical rollers 4a and 4b are tilted at the angle of alpha in the horizontal direction to an axis intersected at a right angle with the axial line of the material 1. By this constitution, a cylindrical longer material is rotated in the circumferential direction by the carrying rollers 3 while being carried. This thereby enables curvature to be accurately detected by a single curvature sensor, and the nonuniformity in heating can thereby be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a feeding device for a long material, and more particularly to a device for feeding a long material while being rotated by a conveyance roller.

(Prior Art) An apparatus has been disclosed in which a long material to be heated is heated in a continuous heating furnace while being moved by a push roller or a feed roller, and then cut into a predetermined size using a hot shear. (
(Refer to JP-A-58-189317) (Problem to be solved by the invention) For example, a long material such as a round bar is heated and then cut into a plurality of heated billets, which are then forged in the next process. In such a case, in order to obtain a heated billet suitable for forging, it is necessary that the long material be heated without uneven heating, and that there be no longitudinal deflection during heating.

In view of the above-mentioned points, the present invention has been developed to move a long material while rotating it, so that the deflection of the long material can be accurately detected using a simple sensor, and also to prevent uneven heating. The purpose of this invention is to provide a supply device for the following.

(Means for Solving the Problems) As shown in FIG. In the elongated material supply device, the pair of conical rollers 4a, 4b are arranged such that their respective rotational axes 6a, 6b intersect at a predetermined angle α with an axis perpendicular to the axis of the elongated material 1 on a plane. By the rotation of the conical rollers 4a and 4b, the placed cylindrical long material 1 is conveyed in the longitudinal direction and simultaneously rotated in the circumferential direction.

The present invention also provides a conveyance roller 3 disposed in a heating line H for the elongated material 1, in which a pair of conical rollers 4a and 4b of the conveyance roller 3 have their respective rotational axes 6a,
6b is arranged at a predetermined angle α on a plane, and by rotation of the conical rollers 4a and 4b, the placed cylindrical long material 1 is conveyed in the longitudinal direction and simultaneously rotated in the circumferential direction. It is.

(Function) Each axis 6a of a pair of conical rollers 4a, 4b
, 6b are not installed in a straight line, but are slanted by a predetermined angle α on a plane, so that
The cylindrical long material 1 placed on the conical surface is conveyed in the longitudinal direction by the frictional force caused by the rotation of the rollers 4a and 4b, and is also rotated in the circumferential direction.

(Example) Embodiments of the present invention will be described based on the drawings.

FIG. 1 is a plan view showing the overall configuration of a long material supply device according to the present invention. Reference numeral 1 denotes a long cylindrical material, which is placed on a stock stand 2 when not being transported. Reference numeral 3 denotes a conveyance roller, which is composed of a pair of conical rollers 4a and 4b that are butted against each other. A plurality of the conveyance rollers 3 are arranged in a row on the feed line S along the side of the stock mount 2, and a plurality of the conveyor rollers 3 are arranged in a row on the feed line S, and also on the heating line H on the downstream extension of the feed line S. Conveyance rollers 3 are arranged in a row between a plurality of heating boxes 5 each containing a built-in heater coil. 6 is a bending check sensor.

The conveyance roller 3 is a pair of conical rollers 4 as described above.
a and 4b are butted against each other, and as shown in FIGS. 2 and 3, the long material 1 is placed on the V-shaped portion formed by their conical surfaces, and the rollers 4a and 4b are moved synchronously. Due to the rotation, the elongated material 1 is moved in the longitudinal direction due to contact resistance with the conical surfaces.

Furthermore, since the axes 6a and 6b of the pair of conical rollers 4a and 4b are swung horizontally by a predetermined angle α as shown in FIG. The vector of force at the contact portion between the surface and the elongated material 1 is not only applied in the longitudinal direction, but also the vector of the component force that moves the elongated material 1 in the circumferential direction.

Therefore, the long material 1 is indicated by the arrow A in FIGS. 2 and 3, respectively.
, B, it is rotated in the circumferential direction while being conveyed in the longitudinal direction.

Thus, the long material 1 on the stock mount 2 is placed on each conveyance roller 3 of the feed line S, and each conical roller 4a,
4b rotates, the long material 1 rotates in the circumferential direction while being conveyed in the longitudinal direction shown by the arrow, and when it passes two horizontally arranged bend check sensors 6, the long material 1 rotates. Therefore, the curve sensor 6 detects not only the degree of curvature in the horizontal direction but also the degree of curvature in the vertical direction. In other words, even if the bending check sensor 6 is arranged only horizontally, it is possible to completely check the degree of bending of the long material 1 in any direction, that is, in 360° directions.

Next, the long material 1 is conveyed to the heating line H and rotates in the circumferential direction by 4 degrees when passing through the plurality of heating boxes 5, so heater coils are placed on both sides of the long material 1, respectively. Even in this case, the elongated material 1 will be heated over its entire circumference, and uneven heating will not occur.

In addition, the bend check sensor 6 of the feeding line S can prevent the bent long material 1 from being carried into the heating line H.
The heating coil inside will not be damaged.

(Effects of the Invention) According to the present invention, it is possible to rotate a cylindrical long material in the circumferential direction while conveying it in the longitudinal direction by the conveyance roller, so it is possible to rotate the cylindrical long material in the circumferential direction while conveying it in the longitudinal direction by the conveyance roller. It becomes possible to accurately detect bends in the entire circumferential direction.

Further, in the heating line, since the elongated material caught on the conveyance roller is also rotated in the circumferential direction, there is an advantage that uneven heating can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a plan view showing an enlarged main part, Fig. 3 is a view taken along line III-I of Fig. FIG. 3 is a diagram showing only the conical roller in FIG.

Claims (2)

[Claims] (1) In a long material supply device in which a plurality of conveyance rollers each made of a pair of conical rollers are arranged in a row,
The pair of conical rollers are arranged such that their respective rotational axes intersect at a predetermined angle with an axis perpendicular to the axis of the elongated material on a plane, and the rotation of the conical rollers causes the placed cylindrical A feeding device for a long material, characterized in that the long material is conveyed in the longitudinal direction and simultaneously rotated in the circumferential direction. (2) A conveyance roller arranged in a heating line for a long material, wherein a pair of conical rollers of the conveyance roller have their respective rotation axes set in a predetermined manner with respect to an axis perpendicular to the axis of the long material in a plane. The conical rollers are arranged so as to intersect at an angle, and the rotation of the conical rollers causes the placed cylindrical long material to be conveyed in the longitudinal direction and at the same time rotated in the circumferential direction. A feeding device for a long material according to scope 1.