JPS5937339Y2 - Flange material guide device in welded section steel manufacturing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a seven-lunge material guide device when manufacturing H-shape, T-shape, etc. steel sections by welding.

Conventionally, in welded section manufacturing equipment, the web material is made to stand up in the width direction, and the flange material is horizontally assembled on both upper and lower edges or one of the upper and lower edges of the web material, and then transferred to a pressure roll. The web material and the flange material are pressed together and formed into a required shape such as H-shape or T-shape by high-frequency electric welding such as high-frequency resistance welding or high-frequency induction welding. At this time, the flange material is attached to the edge of the web material. On the other hand, in general, it is necessary to guide the guide at an approach angle α of 4 to 70 while making very delicate adjustments depending on the plate thickness, welding conditions, etc.

In other words, when the approach angle α is small, the contact starting point between the flange material and the web material is likely to fluctuate, and the distance from the contact starting point to the welding completion point becomes long, so the welding temperature decreases significantly during that time and is healthy. Because it is not possible to squeeze out the weld properly, the quality of the weld deteriorates, and the appearance such as the bead shape deteriorates.On the other hand, when the approach angle The amount becomes large, which tends to cause defects such as twisting of the product.

In view of the above-mentioned conventional circumstances, the present invention provides a guide device that can easily and accurately adjust the approach angle α of the seven-lunge member, and will be described below with reference to the drawings.

Fig. 1 is a longitudinal sectional front view showing the essential parts of an embodiment of the present invention in a welded H-section steel manufacturing equipment, and Fig. 2 is an enlarged sectional view taken along the line ■-■ in Fig. 1. Stand it upright and transfer it in the direction of the arrow.
The lunge materials F are combined horizontally and the upper and lower pressure rolls R
The web material W and the flange material F are transferred by the press roll RP during high-frequency electric welding while being pressed against each other. The inner and outer surfaces of the flange are clamped by a pair of upper and lower press rollers 3 provided on both sides of the inner surface of the flange facing each horizontal roller 2, and the two end edges of the flange are clamped by three sets of edge rollers 4, which are also mounted on the frame 1. One end of the frame 1 on the upstream side in the flange material transfer direction is pivotally connected to the frame 1 by a horizontal pin 5, etc., and is guided to the pressure roll Rp position.
The downstream side of the frame 1 is freely rotatable in the vertical direction, and the downstream side, that is, the other end of the frame 1 has a vertical adjustment mechanism that allows the other end of the frame 1 to be moved vertically and supported and fixed in a predetermined position using, for example, a worm jack mechanism. A device 6 is provided.

In the case of a T-shaped steel, the above guide device for the flange material F may be provided only either above or below the web material W.

As shown in FIG. 2, the presser roller 3 is provided with a screw 7 so that the gap between it and the horizontal roller 2 can be adjusted according to the thickness of the flange material F, and the vertical adjustment device 6 is manually operated. Alternatively, the worm may be rotated a required number of times by driving a pulse motor or the like by remote control to adjust the amount of vertical movement.

What is more important is that a pair of horizontal rollers 2 and presser rollers 3 are installed on the most downstream side of the frame 1, that is, on the upstream side closest to the pressure roll Rp, and between the horizontal roller 2, presser roller 3, and pressure roll Rp. is that the edge roller 4 is not provided, and the most downstream horizontal roller 2 and the presser roller 3 are
The other plural horizontal rollers 2, presser rollers 3, and edge rollers 4 are not limited to being mounted on the frame 1, but may be fixed separately.

The present invention is constructed as described above, and the flange material F passes between the horizontal roller 2 and the presser roller 3 mounted on the most downstream side of the frame 1, and further passes between the pressure rollers Rp downstream to the end of the web material W. An approach angle α is formed with respect to the edge, and the approach angle α can be easily adjusted by operating the vertical adjustment device 6 manually or from a remote location.

Furthermore, the applicant filed the application on March 24, 1973.
No. 3-37526 "Flange material guide device for welding H-shaped and T-shaped steel welding machines" (Japanese Patent Publication No. 59-8860)
Since an edge roller is provided between the most downstream horizontal roller and the pressure roller, there was a drawback that the adjusted approach angle α fluctuated due to the rotational direction of the edge roller.
In the present invention, since there is no edge roller 4 between the most downstream horizontal roller 2 and presser roller 3 to the pressure contact row/L/RP, the approach angle α after the adjustment does not fluctuate due to the influence of the edge roller and can always be adjusted. It is extremely effective in practice, as it is possible to maintain appropriate values, thereby improving product quality and reducing welding power.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view showing a main part of an embodiment of the present invention, and FIG. 2 is an enlarged sectional view taken along line 1--2 in FIG. 1: Frame, 2: Horizontal roller, 3 Two presser rollers, 4
: edge roller, 5: pin, 6: vertical adjustment device, 7: screw, RP: pressure roll, F: flange material, W: web material.

Claims (1)

[Scope of utility model registration request] In the welded shape steel manufacturing apparatus in which 7 lunge materials F are horizontally assembled on both upper and lower edges or one of the upper and lower edges of the web material W to be conveyed in an upright position in the width direction, and high-frequency electric welding is performed while pressing with a pressure welding roll RP. Flange material F
A frame 1, whose one end on the upstream side in the transport direction is pivotally connected by a horizontal pin 5, and which is equipped with a horizontal roller 2 and a presser roller 3 that sandwich both sides of the flange material F at the other end, is connected to the pressure roll R.
A flange material guide device for a welded shape steel manufacturing apparatus, characterized in that the other end of the frame 1 is movable and supported and fixed in the vertical direction by a vertical adjustment device 6.