JPH02198909A - Vibration supply method of granular substance, or the like - Google Patents

Abstract

PURPOSE:To make it possible to supply grains one by one at a fixed interval by connecting a plural number of supply sluices with vibration devices straight in a line, and gradually increasing the transfer speed of the supply sluice on the discharge side. CONSTITUTION:A low speed vibration supply sluice 1 and a high speed vibration supply sluice 2 are connected straight in a line, with the high speed vibration supply sluice 2 placed on the downstream side. In this constitution, cereal grains inside a hopper 4 flow down onto a trough 3, and move toward the downstream side of the low speed vibration supply sluice 1, tied in a row, due to the vibration caused by a coil 18, a plate spring 10 and a vibration board 16. They are gradually dropped onto the high speed vibration supply sluice 2 for further transfer by vibration. Since the speed of the high speed vibration supply sluice 2 is high at this time, intervals are caused among cereal grains being dropped to separate them grain by grain. This constitution enables to transfer grains one by one at a fixed interval.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a vibration supply device for granular materials, etc.

[Conventional technology]

Conventionally, as a means for feeding granular materials such as rice grains to the detection unit one by one, as is known from Japanese Patent Application Laid-open No. 57-180520, etc., a vibrating inclined grain feeding trough consisting of an inclined rough surface is provided with a sloping upper side. It is known that the grain discharging port is connected to the grain feeding groove of a vibrating grain feeding trough provided horizontally, and further, an inclined flow grain trough is connected to the terminal end of the vibrating grain feeding trough. This material flows one by one into the grain feeding groove of the vibrating grain feeding gutter from the grain discharging port of the vibrating inclined grain feeding gutter, and is transferred by the vibrating grain feeding gutter in a string of beads. The grains fall from the end of the grain trough into the sloping grain trough and are fed one by one at approximately constant intervals toward a detection unit provided on the downstream side in the flow direction of rice grains. In addition, JP-A-62-201709 and JP-A-62-2017 are used for conveying relatively small items such as electronic parts or mechanical parts by vibration.
-222917 and many others are known.

(Problems to be Solved by the Invention) By the way, the vibrating feeder known in the above-mentioned Japanese Patent Laid-Open No. 180520/1987 is capable of feeding grains one by one at regular intervals, but the vibrating grain feeder is Since the system is equipped with a vibrating inclined grain feed gutter, it is difficult to connect multiple feed gutter (
In addition, if the feeding device is simply advanced by a vibrating device, the granules tend to overlap and the quality of the granules, etc. may be affected. It is not suitable when it is necessary to feed one grain at regular intervals for determination.

In view of these points, the present invention relates to a vibratory supply device for granular materials, etc., which can supply granular materials one by one at regular intervals, and furthermore, can supply granular materials at a certain flow rate by providing continuous supply channels.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the vibration supply device for granular materials, etc. of the present invention transports the granular materials, etc. in the supply gutter by means of a vibration device attached to the supply gutter. In the vibratory supply method for granular materials, etc., a technical measure was taken in which a plurality of supply troughs each equipped with the above imaging device were connected in series, and the conveyance speed of the supply troughs on the discharge side was sequentially increased.

Further, it is preferable to form a step at the connecting portion of the plurality of supply troughs so that granules and the like may fall slightly.

[Action and effect]

Among the plurality of supply troughs connected in series, the granules supplied to the supply trough closest to the conveyance start end are transported by the vibration action of the vibration device attached to this supply trough, and then transferred to the next supply trough. However, the amplitude or frequency of the imaging device attached to the supply gutter near the end of transport is increased so that the feeding speed of the feed gutter near the end of transport is increased. When the granules are transferred to the supply gutter near the conveyance start end, the granules that tend to overlap are separated and conveyed at appropriate intervals.

In addition, if a step is provided at the connection part of each supply gutter so that the granules fall slightly, the impact of the fall and the difference in conveyance speed of the supply gutter combine to effectively eliminate the polymerization state of the granules. Ru.

In this way, by sequentially increasing the conveyance speed of a plurality of supply troughs connected in series, the polymerization state of the granules can be easily eliminated, and the intervals between the granules can be formed appropriately.
This makes it suitable for supplying means to various detection units and the like. Moreover, since conveyance grooves can be easily arranged in parallel in each supply gutter, a desired flow rate can be ensured.

[Embodiments of the invention]

Hereinafter, a preferred example for carrying out the present invention will be described with reference to the drawings. In FIGS. 1 and 2, a low-speed vibration supply gutter 1 and a high-speed vibration supply gutter 2 are connected in series. In other words, the low-speed vibration supply gutter 1 provided on the conveyance start end side
The lower end of the supply hopper 4 is made to face the starting end of the trough 3, and the conveying end of the trough 3 is made to face the conveying starting end of the trough 5 of the high-speed vibrating supply gutter 2 through a slight gap. .

The trough 3 has the same number of grooves 6 and the trough 5 has the same number of grooves 7 at the same pitch.
..., 7... are provided to correspond to each other. Further, each trough 3, 5 has a receiver 8.9 fixed to it, and the receivers 8, 9 are respectively supported by a weight balancer 12.13 via leaf springs 10, 11, and the bottom surface of the weight balancer 12.13 is Anti-vibration materials 14 and 15 such as anti-vibration rubber are fixed to prevent vibrations from being transmitted to other parts. A diaphragm 16.17 is provided projecting downward from the bottom surface of the receiving plates 8, 9, and a low-speed coil 18 and a high-speed coil 19 are provided respectively with a slight gap from the diaphragm 16.17. Said coils 18.19 are each secured to the weight balancer 12.13 by means of coil mounts 20.21.

FIG. 3 shows an example of each drive circuit for the low-speed coil 18 and the high-speed coil 19. The output side of the constant voltage circuit 22 is connected to a high speed coil drive circuit 23 via a transport speed adjustment volume 25.
and a low-speed coil drive circuit 24. That is,
Each of the drive circuits 23 and 24 is composed of a thyristor, a trigger element, etc., and the low-speed coil drive circuit 24 is provided with a low-speed speed adjustment volume 26 that delays the energization of the low-speed coil 18 compared to the high-speed coil 19. It is.

Hereinafter, specific operations in the above embodiment will be explained. Granular materials, such as brown rice, are put into the supply hopper 4 provided in the low-speed vibrating supply gutter 1, and the coils 18 and 19 are driven. Adjust the magnetic force of coils 18 and 19. As a result, the brown rice flowing out from the lower end of the supply hopper 4 to the bottom surface of the trough 3 is guided into the grooves 6 and conveyed to the high-speed vibrating supply gutter 2 side in a string or overlapping manner. The brown rice that has reached the tip of the trough 3 falls from each groove 6 of the trough 3 into the corresponding groove 7 in the trough 5 of the high-speed vibration supply gutter 2, and the high-speed coil 19 vibrates. by trough 5
transported inside. The high speed coil 19 is the low speed coil 18
The force that attracts the diaphragm 17 is stronger than that, and the brown rice flour is conveyed by a larger vibration action. Therefore, the brown rice that is transported overlapped is separated into individual grains by the slight impact when they fall from the trough 3 into the trough 5, and at the same time, the high-speed trough 5 separates the grains one by one at approximately constant intervals. It will be transported. For example, if you want to increase this interval, use the low speed speed adjustment volume 26.
By adjusting the coil 1 of the low speed vibration supply gutter 1.
This is done by reducing the electromagnetic force of 8, reducing the amplitude of the trough 3 via the diaphragm 16, and increasing the speed difference with the high-speed imaging supply gutter 2. Furthermore, a sensor for measuring the interval between the objects to be conveyed may be provided in the high-speed vibration supply gutter 2, and the low-speed speed adjustment volume 26 may be configured to automatically adjust so that this interval becomes a preset interval. good.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention, and FIG.
The right side view of the figure and FIG. 3 are electrical circuit diagrams. DESCRIPTION OF SYMBOLS 1... Low-speed vibration supply gutter, 2... High-speed vibration supply gutter, 3... Trough, 4... Supply hopper, 5... Trough, 6.7... Groove, 8, 9...Socket plate, 10.1
1... Leaf spring, 12.13... Weight balancer, 14.15... Vibration isolating material, 16.17... Vibration plate,
18...Low speed coil, 19...High speed coil, 2
0゜21... Coil mounting body, 22... Constant voltage circuit,
23... High-speed coil drive circuit, 24... Low-speed coil drive circuit, 25... Conveyance speed adjustment volume, 2
6...Speed adjustment volume for low speed.

Claims (2)

[Claims] (1) In a vibration supply method for granular materials, etc., in which granular materials, etc. in a supply trough are conveyed by vibration of a vibration device attached to the supply trough, a plurality of supply troughs each equipped with the vibration device are connected in series; A method for vibrating the supply of particulate matter, etc., characterized in that the conveyance speed of the supply gutter on the discharge side is gradually increased. (2) The method for vibrating the supply of particulate matter, etc. according to (1), wherein the connecting portion of the plurality of supply troughs is formed with a step so that the particulate matter, etc. may fall slightly.