JPS6058125B2 - Vibrating auxiliary hopper device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibrating auxiliary hopper device in a parts conveyor, etc., in particular, a vibrating trough positioned separately below the bottom of a container supported by a frame, A magnet with vibration absorption measures is used to prevent the vibration of the trough from being transmitted to the frame, and it is configured to apply vibration in the traveling direction via a suction plate and a leaf spring to prevent abnormal noise from being generated due to vibration being transmitted to the container. This invention relates to a vibrating auxiliary hopper device.

2. Description of the Related Art In recent years, parts conveyors have become popular in order to transport large quantities of small parts to predetermined work positions without the need for manpower.

Further, an auxiliary hopper device may be additionally installed in such a parts conveying machine as necessary. 1st
The figure shows a typical example of an auxiliary hopper device. In the drawing,
1 is a frame, 2 is a container (tank) supported by the frame, 3 is a trough, 4 is a mounting bolt, 5 is an adjustment bolt, 6
is an exciter. When the vibrator 6 vibrates, the vibration is transmitted from the trough 3 to the tank 2, and the parts 7 on the trough 3
vibrates up and down and slides down on the trough 3. However, in this conventional system, the exciter 6 is directly fixed to the trough 3, and the trough 3 is fixed to the iron plate tank 2, so the noise level is 95 dB without any parts. Abnormal noise occurs. That is, the exciter 6 is connected to the trough 3
It is directly fixed to the trough 3 to vibrate it up and down.
When this is in use, the part 7 is placed on the trough 3 as shown in Figure 2.
This causes the noise to be splashed in a direction substantially directly above the trough 3, resulting in a doubling of the abnormal noise value. Therefore, it is clear that the use of such an auxiliary hopper device that generates abnormal noise is not desirable at a time when we are concerned about noise countermeasures in the field. In view of the above-mentioned drawbacks of conventional devices, the present invention has developed a vibrating auxiliary hopper device that does not particularly generate abnormal noise. The following is an explanation using an example.

In the drawing, the vibrating auxiliary hopper device according to the present invention includes a frame 11, a tank 12 made of iron plate with a bottom 13, a support plate 15 for a trough, a vibration-proof rubber 16, a weight 17, a magnet 18, a leaf spring 19, and a suction. It extends from plate 20.

And in particular, in this invention, the bottom 13 of the tank and the trough 1
It is an essential condition that 4 be constructed as a separate body. Vibrations are generated between the magnet 18 and the suction plate 20, and the trough 14 vibrates due to the vibration of the leaf spring 19, causing the parts 21 on the trough 14 to be carried out. In addition, in order to change the unloading speed and unloading capacity according to the type of the part 21, approximately 5 lbs.
The inclination of the trough 14 can be adjusted within a range of .about.25 degrees. That is, by loosening the nut 22, the inclination angle of the support plate 15 is changed within the range determined by the arcuate groove 24 around the shaft 23. That is, the principle of carrying out the component 21 is that the trough 14 vibrates in the A direction (progressing direction) via the leaf spring 19 excited by the magnet 18, so that the component 21 is moved from A to B direction. , part 21 is trough 1
4. Sent above. The action of the leaf spring 19 is that of the magnet 18
The excitation force of the trough 14 is applied to the trough 14 as effective vibration by the vibration of the leaf spring 19 near the resonance point. The anti-vibration rubber 16 and the weight 17 serve to prevent the vibration of the trough 14 from being transmitted to the frame 11 and tank 12, thereby reducing the generation of noise.
prevent. As explained above, the present invention includes a parts storage tank supported by a frame, whose bottom is inclined at a predetermined angle, and whose front part is partially open; Board. , a parallel plate spring vertically installed on the support plate via a vibration-proof rubber so that it can be bent in a substantially horizontal direction, and a part of the rear part of the spring that is directly below the tank, with its rear part touching the bottom of the tank. A trough installed obliquely on the free end of the parallel plate spring so that they overlap, a weight installed on the non-free end side of the parallel plate/spring, and a substantially horizontal line between the trough and the weight. It consists of a suction plate and a magnet mounted opposite each other in the direction, the tank and the trough are separated from each other, and the vibration system is supported on the support plate in a vibration-proof manner by the weight and the vibration isolating rubber. , the trough of the vibrating hopper, which was conventionally integrated, was separated from the trough of the vibrating hopper and the tank. This can be prevented by the weight installed on the non-free end side of the parallel leaf spring.
The noise level is significantly reduced by adding a dynamic damper function to the vibration system including the trough and parallel plate springs, and by preventing vibrations from being transmitted directly to the support plate by the anti-vibration rubber. There is an effect that can be achieved.

For example, it was possible to reduce the conventional 95 dB to 78 dB. In addition, the parallel leaf springs are horizontally deflectable and stand vertically, and the suction plates and magnets are arranged horizontally to face each other. This prevents the parts from flying upward, reducing damage to parts and noise. Furthermore, by supporting the support plate with respect to the frame so as to be able to adjust the inclination angle, the component delivery speed of the trough can be easily adjusted.

In short, the vibrating auxiliary hopper device according to the present invention adds a weight to the vibrating system, works as a dynamic damper, and suppresses the vibration of the main body regardless of the vibration of the trough.
Furthermore, it is characterized in that it vibrates nearly horizontally (that is, vibrates in the direction where the trough is more rigid) and reduces the vibration noise. Another feature is that rubber is placed between the vibrating part and the main body, making them independent from each other to prevent vibration transmission. The device according to the present invention can be used not only as an auxiliary device for a parts conveyor, but also as an auxiliary device for a parts conveyor.
It should be added that it can be used alone as a workpiece storage supply device.

[Brief explanation of the drawing]

FIG. 1 is a drawing showing a conventional example, and FIG. 2 is a drawing showing its vibration principle. FIG. 3 is a drawing showing an embodiment of the present invention, and FIG. 4 is a drawing showing its vibration source and vibration principle. 11...
... Frame, 12 ... Tank, 13 ... Tank bottom, 14 ... Trough, 15 ... Support plate, 16 ... Anti-vibration rubber, 17... Weight, 18... Magnet, 19... Leaf spring, 20... Suction plate, 21... Parts.

Claims (1)

[Claims] 1: a parts storage tank supported by a frame, whose bottom is inclined at a predetermined angle, and whose front part is partially open; a support plate supported by the frame below the tank so as to be able to adjust its inclination angle;
A parallel plate spring vertically installed on the support plate via a vibration isolating rubber so as to be able to bend in a substantially horizontal direction, and a part of the rear part overlaps with the bottom of the tank with a gap directly below the tank. A trough installed obliquely on the free end of the parallel leaf spring so that the parallel leaf spring is tilted, a weight installed on the non-free end side of the parallel leaf spring, and the trough and the weight are opposed to each other in a substantially horizontal direction. It consists of a suction plate and a magnet arranged and attached, and separates the tank and trough, and supports the vibration system on the support plate in a vibration-proof manner using the weight and vibration isolating rubber, and also has an inclined structure. A vibrating auxiliary hopper device characterized in that it applies substantially horizontal feed vibration to parts on a trough.