JPH02144320A - Oscillating parts feeder - Google Patents

Abstract

PURPOSE:To eliminate the influence of magnetic force to parts consisting of magnetic material and to improve an aligning and supplying effect by providing a magnetic shield plate between a parts carrying part and an electromagnet and bypassing magnetic flux from the electromagnet to the shied plate of high permeability. CONSTITUTION:On the inner peripheral wall part of the bowl shaped ball 2 of an oscillating parts feeder 1, spiral tracks 3 are formed. On the bottom part 2a thereof, a magnetic shield member 6 consisting of magnetic material is integrally fixed and a movable core 8 as an armature is fixed to the lower portion thereof. The movable core is connected to a base 12 by leaf springs 11 inclined and disposed at equal angular intervals and an electromagnet 9 on which a coil 10 is wound is fixed on the base. Alternating current is caused to flow through the coil, the ball produces torsional oscillation due to the operation of the inclined leaf springs to align and carry parts in the tracks. AT that time, the magnetic resistance of the shield plate is small, so that magnetic flux hardly enters the tracks in the ball bypassing it, thus parts consisting of magnetic material being efficiently aligned and supplied.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a vibrating parts feeder.

[Prior art and its problems] For example, a spiral component transfer track is formed on the inner circumferential wall of a bowl-shaped component receiver, and an alternating current is applied to the electromagnet disposed below. Vibrate the screw,
Vibratory parts feeders for transporting vibrating small parts along a track are well known. Additionally, a component alignment means is generally provided to supply the components to the next process in a predetermined posture.

However, for example, when a ferrite core made of magnetic material is placed into a parts receiver as a part to be processed, transported along a track, and supplied to the next process in a predetermined posture, the parts receiver becomes lighter during transport. However, especially in such cases, the ferrite cores in the component receiver are subjected to strong magnetic force, which adversely affects the alignment effect, and the alignment is not bad, but may overlap or overlap. This greatly reduces supply efficiency. In order to solve this problem, some attempts have been made to interpose a thick aluminum plate between the movable core and the component receiver to avoid the influence of magnetism, but this increases the overall height.

To provide a vibrating parts feeder that does not reduce the alignment and feeding efficiency even when the handled parts are made of a magnetic material such as a ferrite core without increasing the size.

c. Rounding Means to Solve the Problem] The above object is to provide a parts transport section in which a parts sorting track is formed inside, an elastic member that connects the transport section and a base, and a part that is attached to the base. Consisting of an electromagnet and an armature fixed to the bottom of the component transport section opposite to the electromagnet with a gap in between, the coil of the electromagnet is supplied with alternating current to vibrate the component transport section, In the vibrating parts feeder that feeds the parts along the parts transport track, a material having a magnetic permeability higher than that of the material of the parts transport part is used between the parts transport part and the armature. This is achieved by a vibrating component feeder characterized by intervening a magnetic shielding plate.

[Function] The magnetic shielding plate blocks the magnetic lines of force from the electromagnet, and parts made of magnetic material in the parts transport section, such as ferrite cores, are smoothly transported by vibration without being subjected to magnetic force, and the parts alignment means efficiently aligns them. can receive. Therefore, it is possible to further improve component supply and arrangement efficiency compared to the conventional method.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A vibrating parts feeder (m-moving parts feeder) according to an embodiment of the present invention will be described below with reference to the drawings.

The figure shows a vibrating parts feeder (1), and a spiral track (3) is formed on the inner circumferential wall of a bowl-shaped ball (2) as is known in the art. And this bottom (2
a) A magnetic shielding plate (6) made of IcFi, a magnetic material, is integrally fixed with a countersunk screw (7), and a movable core (8) as an armature is further fixed below this by, for example, welding.

The movable core (8) is coupled to the base (2) by leaf springs Oη that are inclined at equal angular intervals. Base (2)
An electromagnet (9) wound with a coil QO is fixed on the top. This electromagnet (9) faces the movable core (8) with a gap in between.

The entire vibrating parts feeder (1) is supported on a vibration-proof rubber floor. In addition, some part of the track (3) in the ball (2) has some kind of component alignment means (4) adjacent thereto.
(shown abstractly) is provided.

In this embodiment, the ball (2) is made of aluminum and the magnetic shielding plate (6) is made of iron.

The present embodiment is constructed as described above, and its operation, effects, etc. will be explained shortly.

When alternating current is applied to the coil αQ, a magnetic alternating attraction force is generated between the movable core (8) and the electromagnet (shun), and the inclined leaf spring CII
Due to the action of J, the ball (2) makes a screw vibration.

Therefore, the ferrite core (5), which is a component to be conveyed by the truck (3), is conveyed by vibration.

The ferrite cores (5) are supplied one by one to the next process in a predetermined posture under a predetermined alignment action by the component alignment means (4).

Conventionally, magnetic force acts on the 7-strand light core (5) and it attracts the track (31K) of the ball (2), or when connected as shown in Figure 1 (5γ), the tracks of the ball (2) attract each other. , it was difficult to align them.In addition, in this example, as shown in FIG. ) is subjected to a clear alignment effect.

Furthermore, in the past, the ferrite cores (5) were sometimes transported in an overlapping manner due to strong adsorption force, but in such cases, the parts alignment means (4) hardly receives the alignment action. However, according to this embodiment, there is no overlap due to such adsorption, and a smooth alignment action can always be achieved.

As described above, the effect is that the magnetic flux flowing through the movable core (8) due to the magnetic shield &(+5>
3) is obtained because it is prevented from flowing into the water. Most of the magnetic flux from the electromagnet (9) flows from the air gap 2 with the movable core (8) → the movable core (8) → the air gap 2 → the electromagnet (9), but some of it flows inside the ball (2) as in the conventional case. Even if the magnetic flux does not flow into the ball (2), the magnetic resistance is much smaller in the magnetic shielding plate (6), so almost no magnetic flux flows bypassing this and flows into the track (3) in the ball (2). . Therefore, the above-mentioned functions and effects can be obtained.

For example, in the above embodiments, a vibratory parts feeder having a spiral track has been described, but the present invention is also applicable to a so-called linear vibratory feeder having a straight track.

Further, in the above embodiments, the ball (2) is made of aluminum, but it may be made of a magnetic material such as iron. In this case, the magnetic shielding plate (6) may be formed of a material with higher magnetic permeability, such as silicon steel.

〔Effect of the invention〕

According to the vibrating parts feeder of the present invention, even if the height is the same as the conventional one and the parts to be fed are made of magnetic material, smooth flow of the parts can be guaranteed, and the parts can be moved by the part alignment means. It is possible to receive the alignment action efficiently.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of a vibrating component feeder according to an embodiment of the present invention, and FIG. 2 is a plan view thereof. In the figure, 2-----ball 6--magnetic shielding plate 8''--movable core 9--1 magnet body magnetic shielding movable core electromagnetic

Claims (1)

[Claims] a component transport section in which a component transport track is formed; an elastic member that connects the transport section and a base; an electromagnet attached to the base; It consists of an armature fixed to the bottom of the conveying section,
In the vibrating parts feeder, the parts are transferred along the parts transfer track by applying alternating current to the coil of the electromagnet to vibrate the parts transfer part, and the part transfer part and the armature are connected to each other. A vibrating component feeder characterized in that a magnetic shielding plate made of a material having a magnetic permeability higher than that of the material of the component conveyance section is interposed between the parts.