JPS594519A - Parts feeder - Google Patents

Abstract

PURPOSE:To uniformly feed parts one by one, by connecting a rotary tube, which slants downward, to the feed-out port of a hopper, providing a spiral projection streak, of which the pitch is wider than the size of a part, on the inner surface of the rotary tube, and forming a projection between adjoining spiral projection streaks. CONSTITUTION:A large number of parts, e.g., a half base 2 for an annular fluorescent lamp, stored in a hopper 1, are guided in a rotary tube 3 connected to the hopper 1 and located in a slanting-downward manner. Through rotation of the rotary tube 3 by means of a driving mechanism 5, the half base 2 is guided to below along a spiral projection streak 11 formed on the inner surface of the rotary tube 3 to feed it out on a chute 10. In which case, even if the plural half bases 2 are supperposed on each other in the rotary tube 3, since a projection 12, provided between the adjoining projection streaks 11, rotates togetherwith the rotary tube 3, the half bases 2 are pushed up by the projection 12 to release them from superposition. This enables the parts to be uniformly supplied one by one on the chute 10.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a supply device ζ1 for supplying parts such as cap halves of annular fluorescent lamps, for example, in a production facility of the lamps.

[Technical background of the invention and its 1m problem] In general, this type of feeding device is constructed by connecting the upper end of a cylindrical chute to the outlet of a hopper in which parts such as the above-mentioned mouthpiece halves are stored, and the above-mentioned parts are Due to its own weight, it is supplied from the hopper to the manufacturing equipment C2 via the chute.

However, in a feeding device with such a configuration, the parts are fed only by the action of their own weight, and therefore, a plurality of parts are fed through the chute at once in the form of a block, resulting in problems in the supply of parts. 2) There was a problem in that it was not possible to feed the parts uniformly (2).Also, if the parts were sent out in a lump shape, the parts could become clogged in the middle of the chute (2), making it impossible to feed the parts accurately. There was a problem.

[Purpose of the invention]

This invention was made based on the above circumstances, and its purpose is to provide a part that can be reliably separated and sent out one by one, and the amount of parts to be fed can be uniformly 1-. supplying equipment (there are two).

[Summary of the invention]

That is, this invention provides a rotating direction in which the upper end openings of the hopper are inclined so as to face each other in the delivery I-1 of the hopper, and a spiral with a pitch larger than the dimensions of the parts is formed on the inner surface of the rotating cylinder. C2, a protrusion is provided on the inner surface of the rotary cylinder between the strips.

[Embodiments of the invention]

An embodiment of the present invention will be described below based on the drawings.

In the figure, 1 is a hopper, and in this hopper 1, a large number of cap halves 2 of annular fluorescent lamps are stored. The upper end opening of a rotary cylinder 3 is opposed to the outlet of the hopper 1, and the rotary cylinder 3 is arranged to be inclined downward.

Further, the rotating cylinder 3 is rotatably supported by bearings 4, 4, and is rotationally driven by a rotational drive mechanism 5.

That is, the rotational drive mechanism 5 includes a pulley 6 on the outer surface of the rotating cylinder 3.
A belt 9 is passed between this pulley 6 and a boo 98 on the motor 7 side. This chute 10 is led to an annular fluorescent lamp manufacturing facility (not shown).

A spiral protrusion 11 is provided on the inner surface of the rotary cylinder 3. The pitch of this protrusion 1] is the pitch of the above-mentioned cap half piece 2.
C2 between the protrusions 11 can accommodate one half piece 2 of the cap in the tube axis direction.

Between the protrusions 11 (the inner surface of the rotary tube 3 in the second position is
A protrusion 12 is provided at the upper end (11!+) of the tube. The protrusion 12 has a semicircular cross section, for example, and is attached along the tube axis direction.

Further, a protrusion 13 is also provided between the protrusions 1 on the lower end opening side of the one-turn cylinder 3. This protrusion 13 is, for example, ld
It has a rectangular shape on one side, and is housed along the tube axis direction similarly to the protrusion 12 described above. Note that the protrusion height of the protrusion 13 is smaller than that of the protrusion 12.

The feeding device of the above embodiment includes a mouth half piece 2 in a hopper 1.
... into the rotating cylinder 3, and by rotationally driving the rotating cylinder 3, the cap half piece 2... is guided downward by the JIII quaternary by its protrusion 1112, and from the lower end opening. A chute 10 (two is sent out. At this time, since the protrusions 12 are provided between the protrusions 11 ≦2, even if a plurality of Ij gold halves 2 are sent from the hopper 1 into the rotary cylinder 3
...is guided.

Even if they are in an overlapping state as shown in FIG. 3, these cap halves 2, 2 are pushed up by the projection 12 rotated together with the rotary cylinder 3, and the overlapping state can be loosened. Therefore, protrusion 11
Each cap half piece 2 is housed in between and guided downward.

(Shoot the cap halves 2 one by one from the bottom opening)
1 (7). As a result, the amount of the cap halves 2 ... supplied to the chute 10 can be made uniform, and clogging of the cap halves 2 ... in the rotary cylinder 3 can be reliably prevented.

Further, in the case of this embodiment, by varying the rotational speed of the rotary cylinder 3, the amount of supply of the cap halves 2 can be easily adjusted. Namely.

The cap halves 2 are not guided inside the rotary cylinder 3 only by their own weight, but are guided by the spiral protrusions 1 on the inner surface of the rotary cylinder 3.
1), the supply amount can be adjusted by varying the rotational speed of the rotary tube 3, that is, the protrusion 1). Furthermore, by stopping the rotation of the rotary tube 3 f2, it is possible to stop the supply of the cap halves 2 without using a separate (varnish) collar mechanism.

Furthermore, in the case of the above embodiment, the lower end 44 of the rotary cylinder 3
Due to the notch 13 provided at 1+1, even if the cap half piece 2 is in a down state as shown in FIG. 4, the cap half piece 2 can be pulled up and raised.

That is, all the cap halves 2 are fed out from the lower end opening of the 91 cylinder 3 in an upwardly open attitude, and the feed postures of these cap halves 2 can be made to be in the same posture.

Note that this invention is not limited to the above embodiments. For example, the number of protrusions 12 and protrusions 13 is not limited to one each, but if there are multiple stages, the function can be more reliably achieved.

It goes without saying that the present invention is applicable not only to the cap halves of annular fluorescent lamps, but also to the supply of other small parts.

〔Effect of the invention〕

As explained above, ≦2 This invention provides a rotary cylinder whose lower end opening faces the outlet of the popper and is inclined, and which is capable of -1 rotation, and the inner surface C of this rotary cylinder has a pitch smaller than the dimension of the two parts. In addition to providing large spiral protrusions, one part between the protrusions is
01 Turning inner surface ≦: Protrusions are provided 3. Therefore, the protrusions loosen the polymerized parts, and the protrusions described above (=Therefore, it is possible to send out parts of 11M each, and the parts This allows the supply V to be made uniform.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall side view, FIG. 2 is a partially cutaway perspective view showing rotational movement, and FIGS. 3 and 4 are cross-sectional views of the rotating cylinder. be. 1...Hopper, 3...Naka1 conversion, 11-゛Kojo,
5... Rotation drive mechanism.

Claims (1)

[Scope of Claims] A rotary cylinder whose upper end opening is inclined to face the delivery port of the hopper and is rotatably disposed. A spiral return strip is provided on the inner surface of the rotary tube with a pitch larger than the dimensions of the parts, and an inner surface of the rotary tube between the protrusions 1: The provided protrusion rotates the rotary tube. A parts supply device equipped with a co-rotating drive mechanism.