JP2533024Y2 - Vibration feeder - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to a vibratory feeder, and more particularly to a vibratory feeder capable of changing the transport speed and the transport state of components.

[Conventional technology]

A vibratory feeder used for aligning and transporting small components such as electronic components includes a ball feeder configured to transfer components along a spiral feed path provided on the inner periphery of a ball and a component that moves linearly. There is a straight feeder.

In each of the feeders, as shown in FIG. 8, a lower vibrating body 3 is mounted on a base 1 via an anti-vibration rubber 2, and the lower vibrating body 3 and an upper vibrating body 4 disposed above the same are in the same direction. The vibrating body 4 is elastically supported by being connected by a plurality of leaf springs 5 inclined to each other, and the upper vibrating body 4 is vibrated by energizing an AC electromagnet 6 as a basic structure.

In the vibrating feeder as described above, in order to make the conveying speed of the components variable, a wedge-shaped angle adjusting member 8 is interposed on the mounting surface 7 of the leaf spring 5 as shown in FIG. Means for changing the angle of the leaf spring 5 by preparing several sheets and forming an appropriate combination are known. (JP-A-60-157412).

[Problems to be solved by the invention]

As a means for changing the angle of the leaf spring 5, the wedge-shaped adjusting member 8 used in combination as described above is used to change the combination by removing or adding the adjusting member 8 when changing the angle. Because of the necessity, there is a problem that the angle adjustment work takes time. Also, depending on the angle of the leaf spring 5, the unnecessary adjustment member 8 needs to be stored because the adjustment member 8 is not used, which causes loss.

Therefore, an object of the present invention is to provide a vibration feeder that can extremely easily perform a leaf spring angle adjusting operation.

[Means for solving the problem]

In order to solve the above problems, in the first invention, the lower vibrating body attached to the base and the upper vibrating body disposed above the lower vibrating body are screwed with ends of a plurality of leaf springs inclined in the same direction. In the vibration feeder, the upper vibrating body is elastically supported by being connected to each other, the spring mounting surface provided on each of the vibrating bodies is formed with a different inclination angle on an inclined surface inclined in the same direction as the inclination direction of the leaf spring, A bent portion for relatively inclining a pair of contact surfaces of the both ends of the leaf spring with respect to the vibrating body with an angle difference corresponding to the inclination angle difference of the spring mounting surface is provided at one end of the leaf spring. In an upside down arrangement, a spacer having the same thickness as the gap dimension formed between one contact surface and one spring mounting surface is selectively provided between the gap or the leaf spring and the head of the mounting screw. The built-in configuration was adopted.

In the second invention, the lower vibrating body attached to the base and the upper vibrating body disposed above the lower vibrating body are connected by screwing ends of a plurality of leaf springs inclined in the same direction. In a vibration feeder that elastically supports a vibrating body,
The spring mounting surface provided on each of the vibrators is formed as an inclined surface inclined at the same angle in the inclination direction of the leaf spring, and one bent portion is provided at one end of the leaf spring and bent in a direction opposite to the other end. This configuration employs a configuration in which two bent portions are formed and the contact surfaces at both ends of the leaf spring with respect to the vibrating body are held on the same plane.

Further, in the third invention, the lower vibrating body attached to the base and the upper vibrating body disposed above the lower vibrating body are connected to each other by screwing ends of a plurality of leaf springs inclined in the same direction. In a vibration feeder that elastically supports a vibrating body, a spring mounting surface provided on each of the vibrating bodies is formed on an inclined surface that is inclined at the same angle in the inclination direction of the leaf spring, and both ends of the leaf spring are in opposite directions. A pair of bent portions that bend at the same angle are formed to hold the contact surfaces of the both ends of the leaf spring against the vibrator in a parallel state, and in the mounting state where one contact surface is screwed to one spring mounting surface, the other contact surface In this case, the gap formed between the spring mounting surfaces and the spacer having the same thickness as the gap is incorporated.

[Action]

As described above, in any of the first invention to the third invention, the bent portion is provided on the leaf spring, so that the leaf spring is turned upside down or upside down and both ends are turned upside down. When the height of the upper vibrator is kept constant, only the inclination angle of the leaf spring can be changed.

Here, in the first invention, a gap is formed between one contact surface of the leaf spring and the spring mounting surface with respect to the leaf spring by changing the direction of the leaf spring. Also change the mounting position of the seat.

In the third invention, the mounting position of the spacer is changed at the same time as the direction of the leaf spring is changed.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 7.

Note that the same components as those of the prior art shown in FIG. 8 described above have the same reference numerals and description thereof will be omitted.

1 to 3 show a first embodiment of a vibration feeder according to the present invention, in which spring mounting surfaces 9 and 10 provided on a lower vibrating body 3 and an upper vibrating body 4 are inclined in the same direction. Screw holes 11, 11 are provided at right angles to the mounting surfaces 9, 10.

As shown in FIG. 2, the spring mounting surface 9 provided on the lower vibrating body 3 is inclined at an angle θ ₁ with respect to the vertical line 12, while the spring mounting surface 9 formed on the upper vibrating body 4 is inclined.
Is inclined with respect to the vertical line 12 at an angle θ ₂ . In the case of the embodiment, the inclination angle θ ₂ of the spring mounting surface 10 in the upper vibrating body 4 is
It is made larger than the inclination angle theta ₁ of but may be increased inclination angle theta ₁ than the inclination angle theta ₂ to the reverse.

Several leaf springs 5 for elastically supporting the upper vibrating body 4 are used as a set. Both ends of the leaf spring 5 are fixed to the mounting surfaces 9 and 10 by tightening bolts 13 and 13 screwed into the screw holes 11 and 11.

Also, the leaf spring 5 has a bent portion at a portion close to the mounting surface.
14 is formed, the contact surface 9, 10 for the vibration member across the formation of the bent portion 14 is inclined relative, when the inclination angle and theta _3, is the θ _{3 =} θ ₂ -θ ₁ I have.

For this reason, when the both ends of the leaf spring 5 are bolted to the vibrators 3 and 4, the contact surfaces 15 and 16 at both ends of the leaf spring 5 come into close contact with the corresponding spring mounting surfaces 9 and 10.

A spacer 18 is incorporated between the head 17 of the bolt 13 for attaching the end of the leaf spring 5 to the lower vibrating body 3 and the leaf spring 5.
The thickness of the spacer 18 and t, when the effective length of the leaf spring 5 is L, the thickness t is one dimension represented by t = L sin [theta ₃ is used.

Now, as shown in FIG. 2, both ends of the leaf spring 5 are bolted to the spring mounting surfaces 9 and 10 of the lower vibrator 3 and the upper vibrator 4 with the bent portion 14 of the leaf spring 5 facing upward. ,
The plate spring 5 is held with the tilt angle theta ₁ of the spring mounting surface 9 in the lower vibrating body 3 in an inclined shape.

Then, the leaf spring 5 is removed, the leaf spring 5 is turned upside down, and a spacer 18 is incorporated between the spring mounting surface 9 of the lower vibrating body 3 and the leaf spring 5 to thereby make both ends of the leaf spring 5 The parts are bolted to the spring mounting surfaces 9 and 10 so that the leaf spring 5
The spring mounting surface 10 of the upper vibrating body 4 is shown in FIG.
It is held with tilt direction corresponding to the inclination angle theta ₂ to the inclined shape.

In the first embodiment, as described above, the angle of the leaf spring 5 can be changed in two stages by turning the leaf spring 5 upside down and simultaneously changing the mounting position of the spacer 18. The angle of the leaf spring 5 can be changed in two stages in the same manner as described above by turning the leaf spring 5 upside down and changing the assembling position of the spacer 18 at the same time.

In the embodiment, the inclination angle theta ₁ of the spring mounting surface 9 in the lower vibrating body 3 and 13 °, whereas, certain inclination angle theta ₂ of the spring mounting surface 10 in the upper vibrating body 4 as 20 °. Therefore, in the embodiment, the angle of the leaf spring 5 can be adjusted in two steps of 13 ° and 20 °.

In the first embodiment, the spacer 18 is incorporated outside the bolt 13 for attaching the leaf spring 5 to the lower vibrating body 3, but the bolt for attaching the leaf spring 5 to the upper vibrating body 4 is used.
The spacer 18 may be incorporated outside of the frame 13.

In the first embodiment, a bent portion is provided at one end of the leaf spring 5.
Although 14 is formed, a bent portion may be provided at one place at one end and two places at the other end of the leaf spring 5. In any case, the bent portion is provided at a portion close to the contact surface.

FIG. 4 shows a second embodiment of the vibration feeder according to the present invention. In this embodiment, the two spring mounting surfaces 9 and 10 are arranged on the same plane by tilting the spring mounting surfaces 9 and 10 formed on the lower vibrating body 3 and the upper vibrating body 4 in the same direction at the same angle. ing. One bent portion 14 'is provided at one end of the leaf spring 5, and two bent portions 14 "which bend in opposite directions are formed at the other end, and the bent portions 14',
By forming 14 ″, the contact surfaces 15, 16 at both ends of the leaf spring are arranged on the same plane.

With the above configuration, when attaching the leaf spring 5 with the two bent portions 14 ″ down, the leaf spring 5 has an angle θ ₄
It is possible with a of inclination orientation arranged in inclined, the leaf spring 5, as shown in FIG. 5 in the mounting that is upside down, can be arranged with inclination facing angle theta ₅ in inclined.

Also in the second embodiment, the leaf spring 5 shown in FIG.
From the mounting state, by attaching to the plate spring 5 inside out, the plate spring 5 is inclined at inclination facing angle theta ₅ as in the fifth FIG.

6 and 7 show a third embodiment of the vibration feeder according to the present invention. In this embodiment, the two spring mounting surfaces 9 and 10 are arranged on the same plane by tilting the spring mounting surfaces 9 and 10 formed on the lower vibrating body 3 and the upper vibrating body 4 in the same direction at the same angle. ing. The leaf spring 5
Bends 14 inclined at the same angle in opposite directions to both ends of
The contact surfaces 15 and 16 at both ends of the leaf spring 5 are arranged in parallel by forming the bent portion 14.
The one contact surface 16 and the spring mounting surface 10 of the upper vibrating body 4
A spacer 18 'is interposed therebetween.

When configured as described above, the spring mounting surface of the upper vibrating body 4
In mounting incorporating a spacer 18 'between 10 and upper mounting surface 16 of the leaf spring 5, the plate spring 5 is inclined at inclined orientation angle theta _6, also, as shown in FIG. 7, the leaf spring 5 The leaf spring 5 can be tilted at an angle θ ₇ by mounting it upside down or mounting it upside down, and at the same time, installing the spacer 18 ′ between the contact surface of the lower vibrating body 3 and the leaf spring 5. Incline.

Therefore, also in the third embodiment, the leaf spring 5
Can be changed in two stages.

[Effect of the invention]

Since the present invention is configured as described above, the following effects can be obtained.

In the vibration feeder according to the present invention, the leaf spring can be turned upside down, and the angle of the leaf spring can be changed to two steps by simultaneously changing the mounting position of the spacer.
For this reason, the angle adjustment for changing the transport speed is easy, and the spacer is selectively assembled between the vibrating body and the leaf spring or between the leaf spring and the head of the bolt, so that the spacer may be lost. There is no need to pay attention to management.

In the vibration feeder according to the second aspect, the angle of the leaf spring can be changed to two steps by turning the leaf spring upside down or upside down, so that the angle adjustment operation is further facilitated. Can be.

In the vibration feeder according to the third aspect, similarly to the vibration feeder according to the first aspect, the angle of the leaf spring can be changed in two stages by changing the direction of the leaf spring and changing the mounting position of the spacer. In addition to this, the angle of the leaf spring can be easily adjusted, and the spacer is always attached, so that care is not required for management.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing a first embodiment of the vibration feeder according to the present invention, FIG. 2 is a sectional view showing an enlarged part of the same, and FIG. FIG. 4 is a cross-sectional view showing a second embodiment of the vibration feeder, FIG. 5 is a cross-sectional view showing the same plate spring in an upside down state, and FIG. FIG. 7 is a cross-sectional view showing a state in which the above-mentioned leaf spring is turned upside down, FIG. 8 is a cross-sectional view showing a conventional vibration feeder,
FIG. 9 is a partially enlarged sectional view of another conventional example. 1 ... base, 3 ... lower vibrator, 4 ... upper vibrator, 5
... leaf spring, 9, 10 ... spring mounting surface, 14, 14 ', 14 ",
14 ... Bend, 15, 16 ... Abutment surface.

Claims (3)

(57) [Scope of request for utility model registration] An upper vibrator is elastically connected to a lower vibrator attached to a base by screwing ends of a plurality of leaf springs inclined in the same direction to an upper vibrator disposed above the lower vibrator. In the supported vibration feeder, a spring mounting surface provided on each of the vibrators is formed with a different inclination angle on an inclined surface which is inclined in the same direction as the inclination direction of the leaf spring. A bent portion for relatively inclining the contact surface with an angle difference corresponding to the inclination angle difference of the spring mounting surface is provided at one end of the leaf spring, and in the arrangement where the leaf spring is turned upside down, one contact A vibration feeder characterized in that a spacer having the same thickness as the gap formed between the surface and one spring mounting surface is selectively incorporated between the gap or the leaf spring and the head of the mounting screw. 2. A lower vibrator attached to a base and an upper vibrator disposed above the lower vibrator are connected by screwing ends of a plurality of leaf springs inclined in the same direction to elastically couple the upper vibrator. In the supported vibration feeder, a spring mounting surface provided on each of the vibrators is formed on an inclined surface inclined at the same angle in the inclination direction of the leaf spring, and one bent portion is provided at one end of the leaf spring, and the other end is provided. A vibrating feeder characterized in that two bent portions bent in directions opposite to each other are formed, and the contact surfaces of both ends of the leaf spring with respect to the vibrating body are held on the same plane. 3. A lower vibrator attached to a base and an upper vibrator disposed above the lower vibrator are connected by screwing ends of a plurality of leaf springs inclined in the same direction to elastically connect the upper vibrator. In the supported vibration feeder, a spring mounting surface provided on each of the vibrators is formed on an inclined surface inclined at the same angle in the inclination direction of the leaf spring, and both ends of the leaf spring are bent at the same angle in opposite directions. In the mounting state where the contact surfaces of the both ends of the leaf spring with respect to the vibrating body are held in a parallel state, and one of the contact surfaces is screwed to one of the spring mounting surfaces, the other contact surface and the other A vibration feeder characterized in that a spacer formed between the spring mounting surfaces of the above (1) and (2) has the same dimension and thickness as the gap.