JPS5825619B2 - Headed bar alignment and feeding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an alignment and feeding device for headed bars, and its purpose is to send headed bars loaded into a hopper to a chute, and to support the heads on the chute. Another object of the present invention is to provide a device in which the legs are aligned in a state where they are guided by the side surface of the chute.

As shown in Figs. 1 to 4, the conventional alignment and feeding device for headed bars, after the blade 2 has descended, collects a large number of headed bars into the hopper 1. When it is scooped up and raised to the top dead center, the scooped-up headed bar is slid into the chute 3.

At this time, the gate 1 of the headed bar bar 11 in the forward direction
Pass through 2, but in the wrong direction kick board 11
Since it cannot pass through, it stays on the chute rail 3 in front of the kick board 11.

Next, when the blade 2 descends, the cam plate 6 swings clockwise and hits the back of the kicking plate mounting plate 8, so that the kicking plate 11 kicks off the headed bar on the chute rail 3 that is in the wrong direction. Drop into hopper 1.

When the blade 2 rises from the bottom dead center, the cam plate 6 swings counterclockwise, and the kicking plate 11 is stopped by the front end surface of the holding plate 1 to sort out the headed bar material to be sent next.

However, since the kicking plate 11 is swinging above the chute rail 3, the distance between the gate 12 and the chute rail 3 changes.

Therefore, when the distance between the gate 12 and the chute rail 3 increases, a pointed bar or the like may get caught between the gate 12 and the chute rail 3.

Furthermore, when the headed bars are aligned in the forward direction up to the upper end of the chute rail 3, the gap between the headed bars and the gate 12 changes, so the headed bars may get caught in between. .

Furthermore, if this gap is slightly widened to prevent the headed bar from getting caught, even the headed bar in the wrong direction will pass through the gate 12 if the headed bar is minute.

In the figure, 4 indicates a defective supply prevention device, 5 indicates a shaft, 9 indicates a frame, 10 indicates a shaft, and 13 indicates a spare gate.

As described above, the gate portion of the conventional headed bar alignment device does not perform a sufficient function.

The present invention aims to eliminate the above-mentioned conventional drawbacks and provide an alignment device with a simple structure and reliable operation.

An embodiment of the present invention will be described below with reference to FIGS. 5 to 9.

A fan-shaped groove with a groove slightly wider than the thickness of the lower part of the neck of the headed bar is provided at the lower end of a swinging rod 17 that is swingably attached to a shaft 16 fixed at the center of the outer circumferential arc 15 of the central meniscus 14. Blade 18 is fixed.

A roller 22 rotatably attached to an arm 21 fixed to a shaft 20 that receives rotation of a motor (not shown) is fitted into a cam groove 19 formed in the center of the swing rod 17.

Further, a pair of chutes 23 are fixed to the upper part of the meniscus 14 at a distance slightly wider than the lower part of the neck of the head rod, and a head regulating plate 24 is attached to the upper part of the chutes 23 so that the distance from the chutes 23 can be adjusted. ing.

Further, a guide groove 25 is formed in the head regulating plate 24 in parallel with the chute 23.

A key 27 fixed to a slide plate 26 is slidably fitted into the guide groove 25.

Further, a U-shaped groove 28 is formed at the tip of the swing rod 17.
This U-shaped groove 28 has a shaft 2 fixed to the slide plate 26.
9 is stuck.

Alternatively, the tip of the swing rod 17 and the shaft 29 may be connected by a link mechanism.

A gate plate 30 whose mounting position can be adjusted in a direction perpendicular to the chute 23 is fixed to the upper end of the slide plate 26.
A gate 32 having an outline slightly larger than the projected shape perpendicular to the axial direction of the head of the headed bar 31 is formed at its lower part.

33 is a hopper in which a bar with a head is stored, and a blade 18 moves up and down inside this hopper.

Next, the operation of this embodiment will be explained.

The swing rod 17 swings about the shaft 16 by a roller 22 that revolves under the rotation of a motor (not shown), and the blade 18 similarly moves up and down.

When the blade 18 descends, it scoops up a large number of headed bars 31 thrown into the hopper 33, and then when it rises to the top dead center, the scooped headed bars 31 slide into the chute 23.

While the blade 18 moves from the bottom dead center to the top dead center, the shaft 2
9 moves parallel to the upper surface of the chute 23 while being guided by the guide groove 25 and the key 27 from A1 to A2 by the U-shaped groove 28 of the swing rod 17.

Similarly, the slide plate 26 to which the shaft 29 is attached and the gate plate 30 fixed to the slide plate 26 also move parallel to the upper surface of the chute 23 from B1 to B2.

By the time the blade 18 reaches the top dead center, the gate plate 30 has reached the arc portion 3 at the upper end of the chute that is continuous with the outer circumferential arc of the meniscus 14.
4 and the upper surface of the chute 23, and has moved close to B2.

Therefore, the headed bar in the normal direction that has slid on the chute 23 passes through the gate 32, and the headed bar in the incorrect direction is prevented from passing by the gate 32.

At the same time as the blade 18 begins to descend from the top dead center, the gate plate 30 also begins to move from B2 to B1, pushing up the headed bar in the wrong direction over the chute 23 and dropping it into the hopper 33 from the intersection 35.

As described above, since the gate 32 moves parallel to the top surface of the chute 23, the gap between the gate 32 and the top surface of the chute 23 does not change.

Further, the gate plate 30 near the gate 32 can be brought into contact with the chute 23 to eliminate the gap.

The present invention has a simple configuration and operation as described above, and it is easy to maintain and inspect, and the operation is reliable.The distance between the gate and the top and side surfaces of the chute does not change, and the distance between the gate and the top and side surfaces of the chute remains unchanged. Therefore, even if the lower part of the headed rod has a sharp point or the rod with a small head, only the square I-headed rod can be flowed into the chute, and the rest can be dropped into the hopper. It is effective.

Furthermore, in the present invention, the gate plate for removing misaligned headed bars is driven synchronously by a drive source that swings the blades, so that it operates at the optimal time when the misaligned bars are moved. In addition to being able to eliminate misaligned bars, only one power source is required, and the structure is simple and low cost, and its industrial value is extremely large.

[Brief explanation of drawings]

Figure 1 is an overall side view of a conventional headed bar alignment and feeding device, and Figures 2 and 3 are longitudinal sections showing different operating states of the defective feed prevention device used in the device shown in Figure 1. Side view,
Figure 4 is a cross-sectional view taken along line X-X in Figure 2;
The figures are a side view of essential parts of a headed bar alignment and feeding device according to an embodiment of the present invention, FIG. 6 is a rear view of the portion shown in FIG. 5, and FIG. 7 is a rear view of the portion shown in FIG.
The figures are a sectional view taken along the line Y--Y shown in FIG. 5, FIG. 8 is a front view of the gate plate, and FIG. 9 is a top view of the slide plate section. 17... Swing rod, 18... Blade,
23... Chute, 24... Head regulating plate, 25... Guide groove, 26... Slide plate, 27... Key, 28 ......U-shaped groove, 29...shaft, 30...gate plate, 3
1... Headed bar, 32... Gate, 3
3...Hopper, 34...Chute arc, 35...Intersection.

Claims (1)

[Scope of Claims] 1. Consists of a fan-shaped plate having a groove slightly wider than the thickness of the lower neck of the headed bar material to be aligned and fed, and is capable of swinging up and down in the hopper around one axis, and is capable of descending. a blade that captures the headed bar at the top surface and supplies the headed bar to the chute when rising; a slide member that reciprocates in parallel along the chute; A guide member for guiding, a gate plate that is attached to the tip of the slide member almost perpendicularly to the chute and that removes misaligned headed bars from the chute by reciprocating movement, and is swingable about one point. and comprises a rocking rod that moves the slide member in parallel by a rocking motion of one end, and an arm that is integrally rotatably fixed to a shaft that receives power from a drive source and rotates; A headed bar alignment and feeding device configured to swing due to the rotational movement of the arm. 2. The blade is fixed to a swinging rod, and the swinging movement of the blade and the parallel movement of the slide member are operated together by receiving power from one driving source by the swinging rod. The headed bar alignment and feeding device according to item 1.