JP2621370B2 - Bar dispensing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for dispensing a bar in a horizontal direction from a bar conveying line.

[Prior art and problems] After being rolled by a rolling mill, a long bar, such as a round bar or a pipe, which is sent on a single conveyor line, is hung on a straightening machine to correct a bend, and then the long bar. Inspection to check for scratches on the surface and to check for scratches on the surface.Those that pass these are cut out to a certain size and pooled out at predetermined locations as short or fixed length materials, and are discharged from the transport line through stages. It is. For this dispensing, a dispensing device in which a plurality of arm pieces that rotate in a plane orthogonal to the flow direction of the line between the feed rollers at the conventional dispensing position of the transport line is provided, and a dispensing device is arranged on each feed roller. The bar to be transported is scooped up from the lower surface by the arm and placed on the arm to be dispensed.

However, in such a conventional dispensing device, for example, when a bar is conveyed without any gap back and forth, when the bar located in front is scooped by the arm, the rear end of the bar or the arm The subsequent bar collided and hindered, and it was difficult to pay out the bar being transported at high speed. Further, the surface of the bar is easily scratched by the rotating arm piece, and at the same time, an impact sound is generated, which is a problem of noise pollution.

In view of the above, an object of the present invention is to solve the above-described problems, and it is an object of the present invention to provide a device which can prevent a trouble such as a collision of a subsequent bar when it is paid out and can pay out the product even when it is transported at a high speed. And

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a feed roller which is arranged between the feed rollers in a specific continuous feed roller group among feed rollers arranged at a constant interval on a transport line. A stop surface is provided with an inclined table that is inclined downward outward in the width direction of the transport line, and each feed roller in the feed roller group projects at its upper limit position with its roller groove protruding above the receiving surface of the inclined table. The roller groove is provided so as to be able to protrude and retract below the receiving surface of the inclined table at the lower limit position.

[Effect] Each feed roller in a specific continuous feed roller group is always held at an upper limit position where a roller groove is located above a receiving surface of the inclined table, and sequentially transfers the bar. In the case of dispensing, when the bar comes to an appropriate position, the respective feed rollers are simultaneously lowered, and the roller groove is immersed below the receiving surface of the inclined table so that the bar is received on the receiving surface of the inclined table. Let it be supported. Therefore, the bar rolls on the receiving surface and is discharged.

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

FIG. 1 and FIG. 2 show a part of the transport line.
A pair of bases 2a, 2b are laid horizontally and parallel by the columns 1a, 1b, and feed rollers 3, 3,... Are arranged in line along the bases 2a, 2b at a constant interval. Are fixed to the end of the shaft 4a of the drive motor 4 and rotate at a constant speed. Each of the rollers 3, 3,... Has a continuous shape and can be transferred in one direction on a transport line while receiving the bar B on the roller groove 5 in the middle.

Then, 3 ', 3' ... of the feed rollers 3, 3
A specific continuous feed roller group, and each of the feed rollers 3 'is a movable platform 6 that moves up and down on the pair of mounts 2a and 2b.
It is fixed to the end of the shaft 4a of the drive motor 4 installed above. Further, between the feed rollers 3 ', an inclined table 9 in which the upper receiving surface 8 is inclined downward outward in the width direction of the transport line is horizontally installed and fixed by columns 7, 7 standing on the gantry 2a. I do. An upright wall 10 is provided at the inner edge of the tilt table 9, that is, at the center side of the transport line, and one end of the tilt table 9 and the upright wall 10, that is, the side facing the bar B, is inclined downward or outward. The tip of the bar B to be transferred is prevented from hanging down and colliding.

The movable table 6 has a pair of support plates 11 and 11 vertically disposed at both ends in the longitudinal direction of the rear surface. On the other hand, a pair of bearings 12, 12 are fixed near the support plates 11, 11 on the back surfaces of the gantry 2a, 2b, and the horizontal shafts 13 are mounted on the bearings 12, 12, and the respective horizontal shafts 13 are fixed.
A pair of crank-shaped swing plates 14 each having a horizontal arm 14a and a vertical arm 14b extending downward are fixed to the swing arm 14a. Then, the tips of the horizontal arms 14a, 14a are pivotally attached to the support plates 11, 11 by pins 15, and the tips of the vertical arms 14b, 14b are pivotally attached to the horizontally supported working rod 16 by pins 17. A bearing 18 is installed on the floor below the transfer line, and an eccentric cam 20 is mounted on a horizontal shaft 19 supported by the bearing 18, and one end of the working rod 16 is connected to the eccentric cam 20. The horizontal shaft 19 is connected to a drive motor 22 via a transmission 21, and the horizontal shaft 19 is rotated by the drive motor 22 to move the operating rod 16 forward and backward, and to move through the swing plates 14, 14. The table 6 is moved up and down. .., The roller grooves 5 project above the receiving surface 8 of the inclined table 9 at the upper limit position, and the roller grooves 5 extend below the receiving surface 8 at the lower limit position. Operate freely so that it can be immersed.

The present invention is configured as described above, and each feed roller 3 ', 3' ... in a specific continuous feed roller group is normally held at the upper limit position where the roller groove 5 is located above the receiving surface 8 of the inclined table 9. Then, the bar B is sequentially transferred. When the bar B is discharged from the transport line, the eccentric 20 is rotated when the bar B comes to an appropriate position to push the operating rod 16 and to move the movable table 6 via the swinging plates 14, 14. Are lowered, and the feed rollers 3 ', 3',... Are lowered to make the roller groove 5 sink below the receiving surface 8 of the inclined table 9. As a result, the bar B supported in the roller groove 5 of each of the feed rollers 3 ', 3',... Rests on the receiving surface 8 and subsequently rolls along its own weight under its own weight and moves sideways. Will be paid out.

As described above, the dispensing device according to the present invention instantaneously lowers the bar B supported by the feed rollers 3 ', 3'... By lowering the feed rollers 3 ', 3'. 8 so that it is quickly dispensed along the receiving surface 8, so that even if the bars are continuously transferred, there is little risk that the bars will collide with each other and cause trouble. You can pay out instantly while transferring B. The length of the bar was 6000mm, the transport speed was 120m / min, and even if the bar was continuous, it could be paid out.

[Effects of the Invention] The present invention has the above-described structure, and the feed roller is lowered to support the bar on the inclined table and pay it out. Therefore, the bar is paid out even when the following bar approaches. At this time, there is little risk that the ends will collide with each other and cause a bearing, so that the bar can be transported and discharged at a high speed, which helps to improve the production efficiency. Further, since the impact given to the bar is smaller than that of the conventional dispensing apparatus in which the bar is scooped from the lower surface, scratches can be prevented from being generated on the surface of the bar, and the resulting noise is reduced, and the beneficial effects such as a small noise are produced. Things.

[Brief description of the drawings]

1 is a front view showing a part of a transport line, FIG. 2 is a plan view of the same, and FIG. 3 is a sectional view taken along line XX in FIG. 3, 3 ': feed roller, 5: roller groove, 8: receiving surface, 9: inclined table.

Claims (1)

(57) [Claims] 1. A receiving surface between the feed rollers in a specific continuous feed roller group among feed rollers arranged in a line at a constant interval on a transfer line is inclined downward outward in the width direction of the transfer line. Arranging a tilting table, each roller of the feed roller group at the upper limit position and its roller groove projects above the receiving surface of the tilting table,
A bar dispensing device, wherein a roller groove is provided so as to be able to protrude and retract so as to enter below a receiving surface of an inclined table at a lower limit position.