JPS598859Y2 - Shaped steel welding equipment - Google Patents

Description

[Detailed explanation of the invention] This invention involves welding flange materials to both ends of the web material.
This invention relates to welding equipment for manufacturing H-shaped or T-shaped steel sections.

As shown in FIGS. 1 and 2, the conventional H-beam welding device supports both sides of a web material 1 with support rolls 2, and welds flange materials 3 to both ends of this web material 1. , which manufactures H-beam steel.

When welding the flange material 3, the pressure roll 4,
4 brings the flange materials 3, 3 into contact with the web material 1, and the first electrodes 5, 5 and the second electrodes 6, 6 apply current to the contact portion T between the web material 1 and the flange material 3 to heat it. .

The first electrodes 5, 5 are pressed against the flange materials 3, 3, respectively, and the second electrodes 6, 6 are pressed against both surfaces of the web material 1, respectively.

As a result, the flange materials 3, 3 of the electrodes 5, 5, 6, 6,
The state of contact with the web material 1 is maintained.

However, as shown in FIG. 2, a moment M is applied to the web material 1 due to the pressing force of the electrodes 6, 6, and as shown in FIG. A buckling W occurs.

This invention was devised to eliminate these conventional drawbacks, and its purpose is to provide a shaped steel welding device that can weld web material and flange material in good condition.

The shaped steel welding apparatus according to this invention is equipped with an auxiliary support roll that generates a rotational moment that offsets the rotational moment generated in the web material by the second electrode.

Next, an embodiment of the shaped steel welding apparatus according to this invention will be described based on the drawings.

Here, the same or equivalent parts as in the conventional example are given the same reference numerals.
Theory of these parts? is omitted.

As shown in FIGS. 4 and 5, an auxiliary support roll 7 is arranged between the support roll 2 and the second electrode 6 of the H-beam welding device, and both sides of the web material 1 are supported by this auxiliary support 7. has been done.

In other words, the web material 1 is supported substantially planarly by the support roll 2 and the auxiliary support roll 7, and the rotational moment M generated in the web material 1 is offset by the second electrodes 6, 6, and the flange of the web material 1 is The perpendicularity to the members 3, 3 is improved.

As shown in FIGS. 6 to 8, the web material 1 has an electrode 6
, 6 is still in an inclined state with respect to the flange members 3, 3, but at the contact position of the auxiliary support roll 7, it is already supported at right angles to the flange members 3, 3,
Similarly, the perpendicularity of the web material 1 to the flange materials 3, 3 at the contact position of the support roll 2 is good.

Therefore, the web material 1 and the flange 3 are grooved in good condition, and there is no problem of perpendicularity or bending as in the conventional example.

Further, another aspect of the present invention will be explained with reference to FIGS. 9 and 10.

As explained with reference to FIG. 2, since the second electrode is brought into contact with the web material, a rotational force of moment }M is applied, which causes the web to fall or buckle.

In this embodiment, one auxiliary roll 7 is provided on both sides of the web material on the opposite side of the web surface corresponding to the contact point of the second electrode 6 to maintain the web surface in a vertically inverted position.

Therefore, as shown in FIG. 10, the flange material and the web material are held at right angles at the welding point, and good welding can be performed.

As mentioned above, the shaped steel welding device according to this invention has the advantage of being able to weld the web material and the flange material in good condition due to the auxiliary support roll disposed between the support roll and the second electrode. have an effect.

It goes without saying that the present invention can be applied not only to the production of H-section steel but also to the production of high-quality T-section steel.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a conventional H-section steel welding device, Fig. 2 is a cross-sectional view taken along the line II-II of Fig. 1, and Fig. 3 is a cross-section taken along the line III-III of Fig. 1. 4 is a plan view showing an embodiment of the H-shaped steel welding device according to this invention, FIG. 5 is a front view showing the same embodiment, and FIG. 6 is a
■-■I A cross-sectional view along the arrow line, Figure 7 is Vll in Figure 4.
-Vll A cross-sectional view along the arrow line, Figure 8 is the ■■l of Figure 4.
9 and 10 are a sectional view taken along the arrow line IX-IX, and a plan view showing other aspects of the present invention. 1... Web material J2... Support roll, 3...
Flange material, 4... Pressure roll, 5... First electrode, 6... Second electrode, 7... Auxiliary support roll, T... Contact portion between web material and flange material, W... Break your back, M... moment.

Claims (5)

[Scope of utility model registration request] (1) A support roll that supports both sides of the web material, a pressure roll that is placed on both sides of this support roll and that brings the flange material into contact with both ends of the web material, and a pressure roll that comes into contact with the flange material in front of this pressure roll. a second electrode in contact with the web material in front of the support roll; and an auxiliary support roll that generates a rotational moment that offsets the rotational moment generated in the web material by the second electrode. Shaped steel welding equipment. (2) The shaped steel welding apparatus according to claim 1, wherein the auxiliary support roll is disposed between the second electrode and the support roll. (3) The shaped steel welding apparatus according to claim 2, which is a utility model registration, characterized in that it has two pairs of auxiliary support rolls, one pair of support rolls being disposed on both sides of the web material. (4) The shaped steel welding apparatus according to claim 1, which is a utility model registration, characterized in that an auxiliary support roll is disposed at a position facing each second electrode across the web material. (5) A form according to claim 1, 2, 3, or 4 of the utility model registration claim, characterized in that the H-section steel is manufactured by one web material and two flange materials. Steel welding equipment.