JPS6132069B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pulverizer that performs desired pulverization through the synergistic effect of impact force caused by ultrasonic vibration and grinding force caused by rotation.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

First, to explain the configuration, on one side of the base 1, a crushing area is provided at the upper part, and at one end of this crushing area, a crushing container 2 with a dispensing pipe 2a having a dispensing port 2b at the lower end is provided. ing. In the upper part of the crushing container 2, there is a supply port 3 having a hopper 17 integrally attached to the top by tightening with bolts and nuts 18.
A stator 4, which will be described later, is arranged between the crushing container 2 in a clamping manner, and the crushing container 2 is fixed in place by tightening bolts and nuts 19. The stator 4 described above is formed in a ring shape with a predetermined thickness,
The inner diameter part has a tapered surface with a reduced diameter at the upper part and an enlarged diameter at the lower part. This stator 4 is arranged concentrically with respect to the axis of the crushing container 2.

Next, a rotary shaft 6 having a length extending from the upper area of the crushing container 2 to the base 1 is attached to an oil seal and a bearing 8 that are attached to the axis of the crushing container 2, and is connected to a motor 9, which will be described later. It is rotatably penetrated by the connection. A disk-shaped rotor 5 having a raised central portion is integrally attached to the top of the rotating shaft 6. The outer diameter portion of the rotor 5 is formed into a tapered surface corresponding to the inner diameter portion of the stator 4 described above. A slight gap G is formed between the two. In addition, a delivery blade 7 for scraping out the product S after pulverization to the outside through the delivery pipe 2a is integrally fitted onto the shaft near the inner bottom of the grinding container 2 in the middle of the rotating shaft 6. ing. Further, a pulley 10 is fitted onto the lower shaft of the rotating shaft 6 housed in the base 1, and the pulley 10 and the
A belt 12 is suspended between pulleys 11 fitted on the output shaft of a motor 9 mounted on the other side of the base 1. Therefore, the rotor 5, which is integrated with the rotating shaft 6, is configured to rotate in one direction at the inner diameter portion of the stator 4 by driving the motor 9.

Furthermore, a vibrator 13 that generates a vibrating effect by high-frequency voltage is integrally fitted onto the lower end shaft of the rotating shaft 6. This vibrator 13 is electrically connected to an ultrasonic oscillator 14 located separately via a lead wire 15 and a carbon brush 16. The above-mentioned vibrator 13 is made of barium titanate, which is a typical electrostrictive element, and expands and contracts with voltage fluctuations, thereby causing the rotating shaft 6 to resonate at a predetermined vibration cycle (for example, 15 to 20 KHz). It is configured in such a way that it is possible. Therefore, when the vibrator 13 receives a high frequency voltage from the ultrasonic oscillator 14 and applies an axial vibrator to the rotating shaft 6, the rotor 5 integrated with the rotating shaft 6 rotates in one direction while generating a maximum amplitude of 50μ. It is configured to vibrate in the axial direction within a range of . As a result, in the crusher according to the present invention, the rotor 5 exerts an impact force due to ultrasonic vibration and a grinding force due to rotation in the gap G between the inner diameter part of the stator 4 and the outer diameter part of the rotor 5. It is configured to perform a crushing action.

Next, the action will be explained.

When performing a crushing action using the crusher configured as described above, first, the motor 9 is driven, and the pulley 1
When the rotational force is transmitted to the shaft 6 through the rotary shaft 6 and the belt 12, the rotor 5, which is integrated with the rotary shaft 6, starts rotating in one direction. At the same time, the ultrasonic oscillator 14 operates, so the ultrasonic oscillator 1
The vibrator 13 that receives high frequency voltage from the rotary shaft 6
The rotor tip resonates and vibrates within a maximum amplitude range of 50μ, thereby causing the raw material (not shown) quantitatively supplied from the hopper 17 to be exposed to ultrasonic waves between the gap G between the stator 4 and the rotor 5. The synergistic effect of the impact force caused by the vibration and the grinding force caused by the rotation allows the powder to be pulverized to a desired particle size. The amplitude in this case varies depending on the type of raw material to be processed, but basically the above-mentioned gap G is configured to vibrate within a maximum amplitude range of 50μ, so that the particle size is always uniform due to highly accurate pulverization. A product S is obtained.

When the product S ground at the above-mentioned gap G falls to the inner bottom of the grinding container 2, since the delivery blade 7 is fitted to the rotating shaft 6 at this position, the fallen product S falls into this position. It is scraped out from this position by the blade 7 toward the delivery pipe 2a side. Therefore, the product S is delivered from the lower end outlet 2b of the delivery pipe 2a into a product receiving container, etc., which is waiting outside, and is used for one part of the crushing operation.
The cycle ends.

In the above embodiment, the crushing container 2 is arranged vertically, but the crusher according to the present invention is not limited to the above embodiment, and the crushing work can be performed in the same manner as described above even when the crushing container 2 is arranged horizontally. .

Further, in the above embodiment, if the crusher is a wet type, a pump (not shown) can be installed at the position of the supply port 3 to easily press feed the raw material. Further, if the crusher is a dry type, the raw material can be easily supplied in the same manner by either force feeding the raw material from the hopper 17 or suctioning it from the supply port 3 side.

As explained above, in this invention, the desired pulverization is performed by the synergistic effect of the impact force caused by ultrasonic vibration and the grinding force caused by rotation, so that when the raw material passes through the position of the gap G, it rotates. It is possible to simultaneously apply a strong impact force due to vibration in accordance with the shear force caused by the crushing force, thereby greatly increasing the crushing effect. In addition, since the vibrating force is constantly applied to the raw material, a secondary effect of loosening agglomeration is exerted, thereby reliably preventing secondary aggregation in the raw material. Furthermore, since the vibration of the rotor 5 is directly consumed in the crushing action, there are effects such as the ability to utilize the energy in crushing with high efficiency.

[Brief explanation of the drawing]

The drawing is a sectional view showing a crusher according to the invention. 1... Base, 2... Grinding container, 3... Supply port,
4... Stator, 5... Rotor, 13... Vibrator,
14... Ultrasonic oscillator.

Claims (1)

[Claims] 1 A stator is disposed between the grinding container and the supply port, and a rotor attached to the top of a rotating shaft passing through the body of the grinding container is placed at the inner diameter of the stator, and the rotor is rotated leaving a slight gap. A vibrator is attached to the base end of the rotating shaft to electrically communicate with an ultrasonic oscillator and use this high-frequency voltage to vibrate the rotating shaft in the axial or radial direction. A crusher characterized by a synergistic effect of impact caused by vibration and grinding caused by rotation.