JPH069741Y2 - Roller conveyor on the sending side attached to the automatic production system for welded structure beams - Google Patents

Description

The present invention relates to a roller conveyor for guiding a beam after welding in an apparatus for welding a welded structure beam having an H-shaped or T-shaped cross section.

2. Description of the Related Art A technique for welding a beam having an H-shaped cross-section by combining strip steel plates having required dimensions is already known.

For example, it is known from a prior invention of the present inventor (Japanese Patent Laid-Open No. 61-193781). The web material that is welded vertically to the flange portion is pressed from the top so that it is in close contact with the flange material during welding and the heating state of the base material at the weld portion is uniform, I try to move forward together. Then, the welded parts are sequentially sent out onto a roller conveyor connected in front of the welded part.

Problems to be Solved: In the welding machine according to the invention of the prior application described above, a measure is taken to prevent the welded portion from being hindered by the thermal strain caused by the welding of the work material, and a good welding state is maintained. In order to provide an automatic welding machine that can be used, the material receiving and supporting portion of the main body has a structure that can be tilted in the traveling direction of the processed material.
Therefore, when the processed material descends downward due to thermal strain and moves forward arbitrarily, the tip of the processed material contacts the intermediate part of the peripheral surface of the conveyor roller when moving on the roller conveyor to be connected, and its advance The phenomenon of being blocked occurs. In such a situation, not only the progress of the processed material stops and the welding becomes defective, but also the conveyor roller is damaged and it becomes difficult to continue the work.

Means for Solving the Problems: The present invention solves the problems as described above, and the processed material fed out from the welding machine under the influence of thermal strain generated during welding is reasonably placed on the rollers of the roller conveyor. guided by,
It is to provide a device that can be moved without any trouble.

That is, the present invention relates to a roller conveyor which is connected to the delivery side of a processed material in an apparatus for automatically producing a welded structure beam; the front side of each roller horizontally positioned with respect to the traveling direction of the material to be conveyed. At a position between the support frame members of the roller, inclined guide plates are arranged with an upward slope so that the upper edge is located above the horizontal plane passing through the support shaft of the roller. Is.

The inclined guide plate arranged at the front position of each roller of the roller conveyor in the present invention has its upper end edge tangential to the front position from the top of the roller so as to be close to the roller peripheral surface without hindering the rotation of the roller. In order to be arranged, both ends are fixedly supported by a roller support frame.

Effect: According to the roller conveyor of the present invention, the lower part of the beam end sent out from the automatic beam manufacturing device of the welded structure is brought into contact with the inclined surface of the inclined guide plate immediately before it is placed on the conveyor roller, so that the surface of the inclined guide plate is moved along the surface. After being automatically pushed up, it is transferred onto the guide roller, so that it is smoothly transferred by the roller conveyor without colliding with the roller. Of course, the subsequent portion does not come into contact with the inclined guide plate and does not hinder the movement of the processed beam.

Embodiment An embodiment of the device of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram of an automatic beam manufacturing apparatus having a welding structure provided with a roller conveyor according to the present invention. The welding apparatus (1) is located at the center of the beam cross-section (or I section). A long flat plate corresponding to the flange portion and a plate to be the web portion are held in a predetermined posture in an inverted T-shaped cross section) and a guide roller for guiding and supporting the web member so as to be electrically welded so as to be electrically welded, and a web member of the flange member. A guide pressing mechanism for maintaining contact with the center is incorporated. The frame base of this welding device (1)
(2) is pivotally supported (4) on the base (3) so that it can be tilted in the advancing direction of the work piece on the lower surface of the central part, and the lower surface of the base (2) is on the exit side of the processed material. A spring (5) for maintaining a steady state is interposed between the base (3) and the base (3). (6) is a straightening roller mechanism. (7) is a feeding roller, which is driven to rotate by a reduction motor (not shown) mounted on a motor base connected to the frame base (2).

(8 ') is a pressing roller, which keeps the web member and the flange member of the work material in close contact with each other by welding by the pressing mechanism (8) which moves downward from the upper part of the main body frame (1'). Is.

(9) is a feed-side roller conveyor for the workpiece, which is arranged in a fixed state. Reference numeral (10) is a roller conveyor on the product delivery side, and its base end is connected to the end of the frame base (2) through a bracket with a pin (12).

Reference numeral (20) is a mount on which the flux processing means (21) for the welding device (1) and the electric welding machine (22) are distributed and installed.
This pedestal (20) straddles the welding device (1) on the base (3) by shifting the column position to the rear so as not to hinder the tilting of the welding device (1) and the progress of the workpiece. It is provided in the state.

As shown in FIGS. 2 to 5, the roller conveyor (10) on the product delivery side of the welding device (1) has a frame (11) whose base end is the base of the welding device (1). 2) is connected to the pin (12) via the bracket (12 '), and the other end is also connected to the support leg (25) by a pin to interlock with the inclination of the body frame (1') of the welding device (1). The base end side is operated vertically. The body frame (1 ') formed in an elongated frame has a plurality of pairs of brackets (13) arranged on the longitudinal member (11') at required intervals.
(13) A roller receiving / supporting frame (15) having a U-shape in plan view is provided by supporting the base ends of the pair (13) with pins (14).

Shaft support notches (16) are provided symmetrically on both vertical members (15 ′) (15 ′) of the roller support frame (15), and the shaft ends are provided at these shaft support notches (16) (16). A roller (17) is rotatably arranged by engaging and supporting the portions (17 ').

Further, between the vertical members (15 ′) and (15 ′) of the roller receiving / supporting frame (15), the inclined guide plate (18) is located at the front position of the roller (17) as viewed from the welding device (1). Both ends in the width direction are fixedly attached to the vertical member. This inclined guide plate (18)
The upper edge (18 ') is located above the horizontal plane that passes through the axis of the roller (17), and the guide surface (surface) is located tangentially to the outer peripheral surface of the roller, with a relatively gentle slope. It is set up. A coil spring (1 "is provided between the central lower surface of the horizontal connecting member (15") of the roller receiving frame (15) and the horizontal member (11 ") of the frame (11).
9), the roller support frame (15) is attached to the support pin (1
The roller (17) is provided with a cushioning function so that it is pushed up when there is no load based on 4) and the roller receiving frame (15) contacts the upper surface of the longitudinal member of the frame (11) at maximum load. .

Roller conveyor (10) on the sending side configured in this way
According to the method, the processed material (A) that is continuously welded and sent out in the welding device (1) is moved straight on in sequence and transferred to the roller conveyor (10). When the body frame (1 ') of the welding device (1) tilts, the base end of the conveyor frame (11) connected to the frame base (2) is also pulled down, so that the processed material that goes straight ( The tip of (A) collides with the intermediate part of the peripheral surface of the roller (17), and the lower edge of the work material tip comes into contact with the guide surface of the inclined guide plate (18), so that the inclined guide (18) It is also picked up by the guide surface and guided on the peripheral surface of the roller (17). Therefore, processed material (A) on the intermediate peripheral surface of the roller (17)
It is possible to ride on the roller (17) and convey the machined material smoothly without the tip colliding. This operation works similarly at the position of each roller (17) and does not cause any trouble. Of course, since the processed material can be smoothly conveyed on the roller conveyor (10), the long beam (processed material) is continuously welded and does not affect the welding point.

According to the spirit of the present invention, the guide surface of the inclined guide plate may be a convex curved surface or a gentle concave curved surface.

Effect of the Invention: By using the device of the present invention, due to the displacement of the processed beam due to the heat during welding, when receiving the roller conveyor on the sending side, an unexpected accident due to a collision between the roller and the end of the entering beam is prevented. It is possible to prevent it and to perform the welding process smoothly without any trouble. Further, since the structure is simple, it does not break down and can be said to be practically effective.

[Brief description of drawings]

FIG. 1 is an overall schematic view of an automatic beam manufacturing apparatus equipped with a roller conveyor of the present invention, FIG. 2 is a detailed view of a main portion of a welding device and a roller conveyor of the present invention, and FIG. A side view, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is a V-V view of FIG. (1)… Welding device, (1 ′)… Main body frame (2)… Frame base, (3)… Base (4)… Pivot, (5)… Spring (6)… Tsumamasa roller, (7) … Feeding roller (8)… Pressing mechanism (9)… Feeding roller conveyor (10)… Feeding side roller conveyor (11)… Frame, (11 ′)… Vertical member (12) (21)… Connecting pin, ( 13)… Bracket (14)… Pin, (15)… Roller support frame (15 ′)… Vertical member, (15 ″)… Horizontal connecting material (16) Shaft support notch, (17)… Roller (17 ′) Roller shaft end, (18)… Inclined guide plate (19)… Coil spring, (25)… Support leg (A)… Processed material

Claims (1)

[Scope of utility model registration request] 1. A roller conveyor connected to a delivery side of a processed material in an apparatus for automatically producing a welded structure beam; at a position before each roller horizontally positioned with respect to a traveling direction of the processed material, the roller. A welded structure beam, in which inclined guide plates are arranged at an upward slope so that the upper edge is located above the horizontal plane passing through the roller support axis, between the support frame members. Roller conveyor on the sending side attached to the automatic manufacturing equipment of.