JPS5834090Y2 - Article feeding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an article feeding device for conveying articles such as machine parts in a uniform manner.

A so-called burn feeder is well known as a device for feeding mechanical parts.

If you attach a suitable attachment to the parts feeder,
Parts that should be oriented in the correct direction can be excluded, and only parts oriented in a certain direction can be fed.

However, this method can only be applied to parts where the difference in orientation can be clearly seen from the outer ring.

For example, what is shown in Figures 1 and 2 is a roller bike used in a bicycle generator to obtain power from tires. It has a shape with an annular protrusion E surrounding the center through hole 2, and although it is clear whether it is the front or the back, the end face of the protrusion E is lower than the end face of the Rollei itself.
A normal parts feeder only recognizes the parts as simple cylinders with no front or back sides, and cannot align only the front sides.

The present invention has been made in view of these points, and an object of the present invention is to provide a feeding device that can reliably align parts that cannot be aligned with a normal parts feeder.

Another purpose is to make the alignment mechanism as compact as possible.

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

The article feeding device 1 has an inclined base 2 as shown in FIG. 3(C).

A chute 3 is fixed on top of the base 2.

Both ends of the chute 30 are connected to other shoes 4 and 5, respectively.

The chute 3 is divided in the middle, and a reversing shaft 6 is disposed at the divided point.

The reversing shaft 6 has a stepped shaft shape that is thick at the center and thin at both ends, and is supported at both ends by brackets 7.8 fixed to the base 2.

A lateral through hole 9 is formed in the center of the reversing shaft 6 and serves as a part of the article descending path.

Further, one end of the reversing shaft 6 passes through the bracket 7 and protrudes to the side thereof, and a pinion 10 is fixed thereto.

11 is a rank that engages with the pinion 10K, which is connected to the actuator of the air cylinder 12 and slid on the base 2 to rotate the pinion 10.

The sliding stroke of the rack 11 is 18 times the pinion 10.
The distance is set to rotate by 0°.

Reference numeral 13 denotes a cylindrical shutter supported so as to be movable in the axial direction using the outer surface of the reversing shaft 6 as a sliding guide, and allows articles to pass through the surface facing upstream and the surface facing downstream of the chute 3. The introduction hole 14 and the discharge hole 15 are formed so as to be shifted from each other in the axial direction.

A flange 1 is attached to the end of the shutter 13 near the bracket 8.
6 is provided, and a rond 17 passing through the bracket 8 connects this flange 16 and the actuator of the air cylinder 18.

Numeral 19 is a rod-shaped stopper that is supported through the bracket 8 like the Ronde 17 and is connected to an air cylinder 20. Its tip protrudes into the chute 3 slightly upstream of the shutter 13 to temporarily stop the flow of articles. It is something to stop.

Reference numeral 21 denotes a switch constituting a device for determining the front and back sides of an article.

The switch 21 is fixed to the side wall of the chute 3 on the upstream side of the shutter 13 via a mounting plate 22, and the switch 21 is fixed to the side wall of the chute 3 on the upstream side of the shutter 13 via a mounting plate 22, and is activated by an actuator 23 made of steel wire to attach the front and back of the article lowered just before the shutter 13, or in the case of the illustrated embodiment, a bicycle. This is used to distinguish between the front and back sides of Rollei for generators.

Next, the operation of this device will be explained with reference to the cylinder operation chart shown in FIG.

In FIG. 10, "forward" refers to a state in which the actuator of the air cylinder protrudes from inside the cylinder, and "retreat" refers to a state in which the actuator retracts into the cylinder.

Now, FIG. 10a shows the cylinder operation when the taller roller is correctly facing the front side (for convenience, the side with the protrusion ``o'' is referred to as the front side) when the shutter 130 is reached.

In step O, the cylinder 18 is in the "advance" position and the introduction hole 14 of the shutter 13 is displaced from the chute 3 as shown in FIG. 5, preventing the roller from passing through.

On the other hand, since the cylinder 20 is in the "retracted" position, the leading Rollei can descend until it comes into contact with the shutter 13.

In the next step, the cylinder 20 is in the "forward" state,
The stopper 19 projects its head into the chute 3 as shown in FIG. 4, and blocks the movement of the second and subsequent rollies.

Here, the switch 21 uses the actuator 23 to detect whether the leading Rollei has its protrusion E facing upward, and determines that the protrusion E is facing upward.

In the next step 2, the cylinder 18 enters the "retreat" state,
The shutter 13 slides, and the leading roller falls into the through hole 9 of the reversing shaft 60, as shown in FIGS. 4 and 6.

At this time, since the discharge hole 15 is offset from the through hole 9, the rollei is held within the reversing shaft 6.

In the next step 3, the cylinder 18 enters the "forward" state,
As shown in FIGS. 5 and 7, the through hole 15 is aligned with the through hole 9, and the rollei that has been taken into the reversing shaft 6 is released as is.

At the same time, the cylinder 20 goes "backward" and the second and subsequent rollers descend, returning to the state of step O.

Next, FIG. 10 shows the cylinder operation when the roller which is about to enter the reversal axis El is turned upside down.

At this time as well, the steps from the switch 21 determining front to back to taking the Rollei onto the reversing shaft 6 are the same as those shown in FIG.

However, in this case, after the reversed rollai is taken into the reversing shaft 6 as shown in FIG.
Flip it 0 degrees and turn the Rollei face up.

Thereafter, in step 3, the cylinder 18 moves "forward" and releases the roller.

It should be noted that upon returning to step O, the cylinder 12 remains in the "forward" position, and moves "backward" only when it becomes necessary to reverse the roller.

By repeating this operation, all the rollers are turned face up and fed.

As described above, the article feeding device of the present invention disposes a reversing shaft covered with a shutter so as to cross the chute in the middle of the chute for lowering the articles, and by the movement of the shutter, the articles are transferred one by one in the lateral direction of the reversing shaft. When an article is taken into the through hole and held, and the object is determined to be turned over by the upstream front/back discrimination device, the reversing shaft is rotated 180 degrees during the holding period to correct the orientation of the object, and then the shutter is moved. Since the material is discharged from the through hole, any article that has different front and back sides can be fed with the same side reliably aligned.

Further, since the reversing shaft for reversing the article and the shank for controlling the flow of the article through the reversing shaft are integrated so that the shutter wraps around the reversing shaft, the entire apparatus can be made compact.

Furthermore, since the reversing shaft is completely covered with the cylindrical shutter, there is also an effect that the article does not deviate from the through hole even during reversal.

[Brief explanation of the drawing]

1 and 2 show examples of articles to be fed,
FIG. 1 is a perspective view seen from the front side, and FIG. 2 is a perspective view seen from the back side. Figure 3 and subsequent figures show one embodiment of the device of the present invention, with Figure 3 being a side view, Figure 4 being a partially cutaway front view seen from the direction of arrow A in Figure 3, and Figure 5 showing different operating states. 4 is a partially cutaway front view similar to FIG. 4, FIGS. 6 to 9 are partial sectional views for explaining the operation, and FIG. 10 is an operation chart of the air cylinder. A...Goods, 3...Chute, 6...
...Reversal axis, 9... Lateral through hole, 13.
...Shock, 21. ...Front and back discrimination device,
12... Air cylinder (drive source for the reversal axis).

Claims (1)

[Scope of utility model registration request] a chute for lowering articles; a reversing shaft disposed across the chute and having a lateral through hole forming a part of an article lowering passage; and movable in the axial direction using an outer surface of the reversing shaft as a sliding guide. The article is supported and has an introduction hole aligned with the upstream side of the through hole, and a discharge hole aligned with the downstream side of the through hole, and the articles are taken into the through hole one by one. There is a cylindrical shack that is held and discharged into a chute on the downstream side after a certain period of time has elapsed, a device for discriminating the front and back sides of the article disposed upstream of the shank, and the discriminating device flips the article to be taken into the reversing shaft. and a drive source that rotates a reversing shaft by 180 degrees during a holding period of the article when it is determined that the article is being held.