JPH06191627A - Hopper for powder conveying - Google Patents

Abstract

PURPOSE:To crash blocks of powder not crashed yet efficiently, and to cut out in a good accuracy, by providing a crashing means to the position contacting to the powder fed into a hopper, and making the crashing means movable in the vertical and longitudinal directions of the hopper. CONSTITUTION:When a powder to be the feeding object is fed on a hopper 1, a solenoid 3 repeats the excitation and its release by a controller 5, a vibrator 2 is vibrated, and the powder is fed forward along the groove of the hopper 1. A crashing needle 4a is resonated to the vibration of the main body of the hopper 1, and swayed in the longitudinal direction while vibrating minutely, and swayed minutely in various directions making a ball joint 4c as the center. The powder is contacted to the crashing needle 4a, a block form powder is crashed, and it is decomposed into more minute powder. In this case, the cutting out amount of the powder is measured by a scale 7, and made feedback to the controller 5, so as to regulate the strength of vibration. Consequently, the cutting out accuracy can be improved without adding a specific driving source newly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport hopper which is attached to a vibrator of a device for transporting powder using vibration and which delivers liquid powder such as liquid crystal spacers.

[0002]

2. Description of the Related Art A method is generally used in which powder is supplied to a hopper having a trough-shaped groove, and the hopper is vibrated finely to send the powder forward. The amount of powder cut out is adjusted by controlling the intensity of vibration, and a predetermined amount is supplied to the outside.

[0003]

Conventionally, in such a hopper, the cutting accuracy of the powder is ultimately influenced by the size of the powder to be cut out even if the control method is improved. If the powder is highly condensable and cohesive, such as liquid crystal spacers, the soul will grow larger, so it was not possible to raise the accuracy of the cut-out amount just by controlling the hopper vibration.

Therefore, there is a need for a method of pulverizing soul powder and making it finer. Traditionally, this type of hopper could not effectively crush the soul. An object of the present invention is to provide a powder transfer hopper that can efficiently crush souls that could not be crushed in the past and accurately cut them.

[0005]

In a transport hopper, a hopper is connected to a vibrating device, and the hopper resonates with the vibration of the vibrating device and crushes to a position where it comes into contact with the powder supplied into the hopper. Crushing means provided with a needle is provided, the crushing means is provided in the hopper so as to be movable in the vertical and longitudinal directions, and the crushing needle is provided in the crushing means so as to be movable in the lateral and longitudinal directions. And

[0006]

Function: The powder is supplied onto the gutter-shaped hopper, and the hopper is vibrated by the vibrator to send the powder forward. The vibration of the hopper causes the crushing needle to resonate, crushing the soul that comes into contact with the needle, and making the soul powder fine.

[0007]

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

The shape of the hopper 1 will be described as a triangular groove as an example, but in actuality, any shape may be used as long as it is a groove shape. The hopper 1 is attached to a vibrator 2 that vibrates by a solenoid 3, and the vibrator 2 can change the strength of vibration by an electric signal from a control unit 5 from the outside. The control unit 5 is composed of a host computer 5a for making a judgment and issuing a command, and an amplifier 5b for converting a digital signal from the computer 5a into a solenoid drive signal voltage. The side wall of the hopper 1 has a supporting portion 4b for supporting the crushing needle 4a.
Is provided in the hopper 1. The supporting portion 1a of the crushing needle 4a is attached to the hopper 1 through the hole. The crushing needle 4a has a plurality of ball joints 4c.
Are connected by. Around the ball joint 4c, the needle portion of the crushing needle 4a can swing in all directions such as front, rear, left and right. The mounting hole for the vibrating needle on the hopper 1 is provided with a size large enough for the crushing needle 4a support portion to freely rotate. In the present invention, one crushing needle 4a is used, but it is also effective to provide a plurality of crushing needles 4a depending on the purpose.

It is assumed that the powder 6 to be supplied is supplied onto the hopper 1 by some means. Control unit 5
The solenoid 3 repeats excitation and release in response to a signal from, and vibrates the vibrator 2. The powder 6 is sent forward along the groove of the hopper 1 by vibration. Crushing needle 4a
Resonates with the vibration of the main body of the hopper 1 and shakes mainly in the front-rear direction while vibrating finely, and shakes finely in various directions around the joint portion. When the flow of the powder 6 passes under the crushing needle 4a, the powder 6 comes into contact with the vibrating crushing needle 4a, and the soul-like powder 6a is crushed by the vibration of the crushing needle 4a and the collision, resulting in a finer powder. It is broken down into body souls.

The cut amount of the powder 6 is the same as that of the hopper 1.
It is measured by a scale 7 that weighs the powder that has fallen off and is fed back to the control unit 5 that controls vibration, and the intensity of vibration is adjusted. In addition to the method of measuring the weight of the powder 6 that has fallen, the cutout amount is measured by measuring the weight of the system including the vibrator 3, the hopper 1, and the solenoid 3, and The cutout amount can also be measured as the amount of decrease.

[0011]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, it is possible to greatly improve the powder cutting accuracy easily by adding a slight improvement to the hopper without adding a special drive source. It will be possible. Further, this technique is not limited to powder, and can be applied to the transportation and measurement of large particles such as earth and sand.

[Brief description of drawings]

FIG. 1 is a diagram (a) showing a configuration of an embodiment of the present invention and a structural diagram (b) of a crushing needle portion.

FIG. 2A is a diagram showing how the powder is pulverized and how the pulverizing needle moves from the direction of viewing the powder flow, and FIG. 2A is a diagram showing how the pulverizing needle moves from the direction of the powder flow. It is a figure (b) shown.

[Explanation of symbols]

 1 Hopper 1a Support Hole 2 Vibrator 3 Solenoid 4a Crushing Needle 4b Crushing Needle Support 4c Ball Joint 5 Control 5a Host Computer 5b Amplifier 6 Powder 6a Soul-like Powder 7 Weighing Scale

Claims (1)

[Claims] 1. In a transport hopper, a hopper is connected to a vibration device, the hopper resonates with the vibration of the vibration device, and a crushing needle is provided at a position in contact with the powder supplied into the hopper. Powder conveying characterized in that a crushing means is provided, the crushing means is installed in the hopper so as to be movable in the up-down and front-back directions, and the crushing needle is provided in the crushing means so as to be movable in the left-right front-rear direction. Hopper for.