JPH0530723B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibrating parts feeder, and particularly to a structure for adjusting the mounting angle of a leaf spring.

[Conventional technology]

A vibrating parts feeder used for aligning and conveying small parts such as electronic parts has a lower vibrating body 3 mounted on a base 1 via a vibration isolating rubber 2, as shown in FIG. AC electromagnet 4 installed inside
An upper vibrating body 5 is provided at the top with a required gap, and the upper vibrating body 5 is supported by a leaf spring 6 interposed between the upper vibrating body 5 and the lower vibrating body 3. It consists of a structure in which a bowl 7 having a spiral conveyance path is mounted. Further, four sets of the above-mentioned leaf springs 6 are used, each of which is made up of several leaf springs, each of which is inclined at a certain angle in the same direction.

In the vibrating parts feeder as mentioned above,
In order to make the transport speed of the parts variable, as shown in FIG. There is a known method for changing the angle of the leaf spring 6 by creating a suitable combination of the following (Japanese Patent Application Laid-open No. 157412/1983).

[Problem that the invention seeks to solve]

As a means for changing the angle of the leaf spring 6, when the wedge-shaped adjustment members 9, 9 as described above are used in combination, the adjustment members 9, 9 can be removed or added when changing the angle. Since it is necessary to change the angle, there is a problem in that it takes time to change the angle. Further, depending on the angle, there may be adjustment members 9, 9 that are not used, so it is necessary to store unnecessary items, which may cause loss.

The object of the present invention is to provide a vibrating parts feeder that solves these problems.

[Means for solving problems]

In order to solve the above problems, this invention
The angle adjustment member is formed of a prism having a scalene triangular cross section, and the leaf spring mounting surfaces of the upper and lower vibrators are formed parallel to each other, and each of the triangular faces of the adjustment member is provided with a mounting means for the mounting surface and a leaf spring. The fixing means is provided, and the mounting position of at least one of the adjustment members is provided with a means for varying the mounting position in a direction along the mounting surface.

[Effect]

Each adjustment member is attached to each mounting surface while maintaining the same posture, and the leaf spring fixing surfaces of each adjustment member are set to be on the same surface to fix the leaf spring. When changing the angle of the leaf spring, it is done by changing the mounting manner of each adjustment member to another same position.

〔Example〕

Figures 1 and 2 show a vibrating parts feeder according to an embodiment of the present invention, and the basic structure thereof is the same as that of the conventional one, so the same parts as those in Figure 6 are given the same reference numerals. The explanation will be omitted. The features of this invention are as described below.

That is, the outer peripheral surfaces of the vibrating body 5 and the lower vibrating body 3 are partially cut out, and an upper mounting part 10 and a lower mounting part 11 are respectively provided that protrude from the cut surfaces. The angle of inclination ω to the center line of the parts feeder on the bottom surface (see Figure 3)
, and form mounting surfaces 12 and 13 that are parallel to each other. Note that the upper mounting portion 10 is provided with the leaf spring 6 somewhat closer to the lower mounting portion 11 in the inclination direction.

The angle adjustment members 14 and 15 are formed of prisms having similar triangular shapes with scalene sides.
(For convenience, let the angles be α, β, γ as shown in Figure 3,
Let the vertices be A, B, C and A', B', C'. ) Among these adjusting members 14 and 15, the upper adjusting member 14 is used for fixing the leaf spring 6 and for fixing the upper mounting surface 12.
Screw holes 16, which also serve as attachment points, are formed on each side of the triangle. Further, a fixing through hole 17 is provided at the center of the inscribed circle of the triangle.

The adjustment member 14 is mounted with one of the triangular surfaces (in the case of FIG. It is fixed to the upper vibrating body 5 by a screw 19 inserted into the through hole 17. Further, the upper end of the leaf spring 6 is fixed to the other surface of the triangle (in the case of FIG. 3, the surface containing the triangle) by a screw 20.

Similarly, the lower adjustment member 15 has screw holes 21 formed on each triangular surface for both fixing the leaf spring 6 and attaching it to the lower mounting surface 13, and also has three fixing through holes in the axial direction of the prism. 22 is formed.

The upper adjustment member 14 and the lower adjustment member 15 are attached while maintaining the same posture. That is, when the upper adjustment member 14 is attached to the upper mounting surface 12 on a surface including the side thereof, the lower adjustment member 15 is installed on the lower vibrating body 3 in each case when the adjustment member 15 changes its posture. It is provided at a position that matches the screw hole 25. Therefore, by screwing the screw 26 through the through hole 22, the adjusting member 15 can be adjusted.
can be fixed.

After all, the three through holes 22 constitute a mounting position variable means that moves the position of the adjusting member 15 along the mounting surface 13 in accordance with the attitude of the adjusting member 15.

The embodiment of this invention has the above configuration,
The effect will be explained below.

Now, when both adjustment members 14 and 15 are installed as shown in Fig. 3, the sides of each member 14 and 15 are
The surface containing AB and the surface containing side '' are the same surface, and the leaf spring 6 is attached using the screw holes 16 and 21 on each surface.
to be fixed. The inclination angle θ ₁ of the leaf spring 6 with respect to the vertical line is expressed as θ ₁ =α−ω.

Furthermore, when installed as shown in FIG. 4, the relative position between each adjusting member 14, 15 changes;
The lower adjustment member 15 is attached in the same orientation as the upper adjustment member 14, the triangles are similar, and the positions of the screws 21 and through holes 22 are appropriately determined, so that the surface including the sides and side
This is the same surface as the surface containing B'C', and the mounting interval of the leaf springs 6 remains the same.

The inclination angle θ ₂ in this case becomes θ ₂ =β−ω. Fifth
Similarly, in the case of the figure, the inclination angle θ ₃ is θ ₃ =γ−ω.

For example, if α = 55°, β = 60°, γ = 65°, and ω = 45°, θ ₁ = 10°, θ ₂ = 15°, θ ₃ = 20°,
Since vibration characteristics are obtained depending on each inclination angle, the conveyance speed changes.

In the embodiments described above, the position of the lower adjustment member 15 is determined with reference to the upper adjustment member 14, but this relationship may be reversed. In the opposite case, the three through holes 22 serving as attachment position variable means are provided in the upper adjustment member 14.

Further, in this invention, both adjustment members 1
The concept that the cross-sectional shapes of 4 and 15 are similar triangles includes congruent triangles as a special case.

〔effect〕

As described above, in the present invention, since the adjusting member interposed between the mounting surface and the leaf spring has a scalene triangle shape, the inclination angle of the leaf spring can be changed simply by changing its attitude.

Therefore, the angle adjustment work for changing the conveyance speed can be easily performed, and there is no need to pay attention to the management of the adjustment members.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional front view of the embodiment, Fig. 2 is a front view thereof, Figs. 3 to 5 are illustrations of angle adjustment, Fig. 6 is a vertical sectional front view of the conventional example, and Fig. 7 is a It is a partially enlarged front view of a conventional example. 1... Base, 3... Lower vibrating body, 5... Upper vibrating body,
6... Leaf spring, 10, 11... Mounting part, 12, 13...
Mounting surface, 14, 16...adjustment member, 16...screw hole,
17...Through hole, 18, 19, 20...Screw, 21...
Screw hole, 22...through hole, 23...long hole, 24...screw, 25...screw hole, 26...screw.

Claims (1)

[Claims] 1 A vibrating type in which an upper vibrating body supported by a plate spring is provided on a lower vibrating body installed on a base, and the plate spring is attached to the mounting surface formed on each vibrating body with an angle adjustment member interposed. At the parts feeder,
The above adjustment member is formed of a prism having a scalene triangular cross section, and the above mounting surfaces are formed parallel to each other, and each adjustment member is provided with a means for attaching it to the mounting surface and a means for fixing the leaf spring on each triangular surface. 1. A vibrating parts feeder, characterized in that at least one of the adjusting members is provided with means for varying the mounting position in a direction along the mounting surface.