JPS6185144A - Control device for raw tea leaf - Google Patents

Abstract

PURPOSE:To obtain high-quality green tea, by setting a sweeping brush on a conveyor laid on the top of a storage tank in such a way that the brush can be reciprocated along the conveyor, and sweeping raw tea leaves placed on the conveyor into the storage tank. CONSTITUTION:The storage tank 4 consists of the air-permeable conveyor 5 at its bottom, and an opening front, is provided with the conveyor 6 having approximately the same length of as that of the tank 4, the rail 9 is set along the conveyor 6, the traveling base 10 stradding the conveyor 6 is placed one the rail, and the brush 7 to sweep raw tea leaves on the conveyor 6 into the storage tank 4 is attached to the base 10. Namely, the brush 7 can reciprocated along the conveyor 6, the raw tea leaves placed on the conveyor 6 is swept into the tank 4, so that the raw tea leaves are successively piled in the tank 4, the whole tea leaves are uniformly blended when they are taken out even if the raw tea leaves of different lots are added to the tank 4, the raw tea leaves are processed under a constant condition and high-quality green tea can be prepared.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a raw tea leaf management device, and is particularly characterized in that raw tea leaves are uniformly introduced over almost the entire surface of a storage tank.

Conventional technology In producing green tea, first, raw tea leaves picked from a tea garden are steam-treated, and then coarsely rolled, rolled, medium rolled, finely rolled,
Perform processing such as drying. In this case, the work of picking raw tea leaves from the tea garden and the work of steaming the picked raw tea leaves are:
These are completely different tasks, and the two are not connected.
Once the raw tea leaves are plucked, they are piled up and then subjected to steaming treatment.

Therefore, raw tea leaves are stored for a considerable time before being steamed. By the way, since raw tea leaves are new tea leaves, they are susceptible to withering.

Moreover, the freshness of this tea is important, and if it wilts even a little, it will reduce the quality of the green tea product, so when storing it, it is necessary to remove the steam generated from the raw tea leaves to maintain its freshness. It is taken. One of them is a raw tea leaf management device. This is a type of aeration type storage tank, and the tank 1 has a bottom surface 2 formed by a long ventilation conveyor from which air is blown up into the tank.

A raw tea leaf feeder 3 is attached to the rear of the tank 1, and the front side is opened so that raw tea leaves can be taken out from there. In this device, to fill the storage tank 1 with raw tea leaves, the raw tea leaves are first put into the rear of tank 1, and when the thickness reaches a predetermined thickness, the belt conveyor is rotated to gradually advance the raw tea leaves. Then, a space is created at the rear of the barrel 1, so raw tea leaves are thrown into this space again, and the entire tank 1 is filled with raw tea leaves by repeating the introduction of the raw tea leaves and the forward movement of the belt conveyor. In this system, raw tea leaves are sequentially put into the tank 1 from the front to the rear, and therefore, the stored raw tea leaves are taken out in the order in which they were put in.

By the way, the storage tank has the capacity to store several or more than ten raw tea leaves picked from tea gardens, and since raw tea leaves have different properties depending on the tea garden, the above-mentioned conventional raw tea leaf management device cannot be used. With the method of taking out the tea leaves in the order they are put into the storage tank 1, raw tea leaves with different properties are sent to the tea leaf steamer one after another, so it is not always possible to process the raw tea leaves under appropriate conditions. This causes variations in the product.

This in turn reduces the quality of the green tea product.

Technical Means The present invention solves the drawbacks of the conventional raw tea leaf management device described above, and mixes raw tea leaves with different properties and takes them out in a homogenized state. By steaming under the same conditions, high quality green tea can be obtained.

Hereinafter, the present invention will be specifically explained based on the illustrated embodiments.

Reference numeral 4 in the figure is a storage tank. This tank is similar to the conventional storage tank of this type, and the bottom surface is formed by an air-permeable conveyor 5 (not shown) through which air is blown up into the tank. The front side is open and raw tea leaves can be taken out from here. Reference numeral 6 is a feed conveyor, and 7 is a sweeping brush. These are for distributing fresh tea leaves over almost the entire surface of the storage tank 4, and a feeding conveyor 6 is provided at the top of the storage tank 4 over almost the entire length of the storage tank, and furthermore, a conveyor 6 is provided at the top of the storage tank 4 over almost the entire length of the storage tank, and a conveyor 6 is provided at the rear end of the storage tank 4. A tea leaf supply conveyor 8 is provided, and raw tea leaves are stacked on the feed conveyor 6.

Rails 9 are laid on both sides of the feed conveyor 6, and a reciprocating platform 10 is mounted on the rails 9, and a sweeping brush 7 is attached to the reciprocating platform 10.
This sweeping brush 7 sweeps the raw tea leaves placed on the feed conveyor 6 into the storage 4'tJ4, and the reciprocating mount IO is formed to straddle the feed conveyor 6.
The sweep brush 7 has its lower end in contact with the feed conveyor 6, and is moved along the upper surface of the feed conveyor 6 by reciprocating the reciprocating platform 10.
There are no particular limitations on the structure of the sweeping brush 7.

In short, any device that can sweep the raw tea leaves on the feed conveyor 6 into the storage tank 4 without damaging them is sufficient. In the figure, as an example, a vertical rotary blade is shown, and a brush is attached to the portion that contacts the upper surface of the feed conveyor 6.

To describe the operation of feeding raw tea leaves into the storage tank 4 of the raw tea leaf management device formed in this way, first, while rotating the feed conveyor 6, the supply conveyor 8 is operated, and the raw tea leaves are placed on the feed conveyor G. Continuously stack them in stages and move them from the front to the rear of the storage tank 4 while rotating the sweeping brush 7.
(rightward in the figure). Then, the raw tea leaves on the feed conveyor 6 are swept into the storage tank 4 by the sweeping brush 7.
It is then swept into a storage tank. When the sweeping brush 7 reaches the rear end, move this to 1)? I
Then, the reciprocating movement is repeated, but there is no particular problem with the forward speed of the sweeping brush 7.

If the speed is slower than the transport speed of the feed conveyor 6, the raw tea leaves will be swept in even when moving forward, and the speed will be the same as the transport speed.
Or, if it is faster than this, it will not be swept in. Of course, in this case, if the sweeping brush 7 is stopped at one place or reciprocated within a limited range, the raw tea leaves will be swept into that part of the storage tank 1. After all, it is possible to put any desired amount of fresh tea leaves into any location in the storage tank.

Reference numeral 11 denotes a raw tea leaf detection sensor, which is connected to a drive motor (not shown) of the reciprocating platform 10, and detects the presence or absence of raw tea leaves on the feed conveyor 6, and detects when the raw tea leaves on the conveyor are interrupted. Then, the stud return traveling frame 10 is stopped until the raw tea leaves are sent. As a result, even if the supply of raw tea leaves from the supply conveyor 8 to the feed conveyor 6 is intermittent, the supply of raw tea leaves to the storage tank 4 is continuous, and within the range where the sweeping brush 7 runs, raw tea leaves are supplied. It averages out the usage. Reference numeral 12 is the numerator i2 S<.

This material is swept into the storage tank 4 by the sweeping brush 7 and is on the fall trajectory of the raw tea leaves, and the raw tea leaves are swept into the storage tank 4.
Sweeping brush 7
The raw tea leaves swept from the feed conveyor 6 are dispersed by the dispersion blades 12 and fall into the storage tank 4.
This allows the storage tank 4 to be made large. Of course, the dispersion fi 12 is the same as the sweeping brush 7, and the reciprocating frame 1
0 and moves back and forth integrally with the sweeping brush 7.

Effects As detailed above, in the present invention, a feed conveyor 6 of approximately the same length as the storage tank 4 is provided above the storage tank 4, and a sweep brush 7 is provided on the conveyor so as to be able to freely move back and forth along the conveyor. The raw tea leaves placed on the feed conveyor 6 are swept into the storage tank 4. By doing this, the raw tea leaves are sequentially stacked and introduced into the storage tank 4, so that different lots of green tea leaves can be placed in the storage tank 4. Even when tea leaves are put in, when they are taken out, all the tea leaves are tied together and are evenly distributed, so the processing conditions for these raw tea leaves are constant and high quality green tea can be obtained. Furthermore, since the raw tea leaves are picked from the tea garden, the raw tea leaves to be put into the storage tank 4 are not necessarily accumulated all at once, and it takes as long as possible before all the raw tea leaves are put in. It may take some time to develop. In this respect, in the past, raw tea leaves were sequentially introduced from the rear of the storage tank 4, so until the storage tank 4 was full of raw tea leaves, there was no space at the front of the storage tank. Regardless, raw tea leaves are piled up at a predetermined height in the rear. On the other hand, in the present invention, the raw tea leaves are poured into almost the entire surface of the storage tank 4 immediately after the introduction, so that all the air blown up from the bottom of the storage tank 4 acts effectively to maintain the freshness of the raw tea leaves.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing one embodiment of the present invention, and FIG.
The figure is a vertical side view, FIG. 3 is a vertical front view, FIG. 4 is a perspective view showing the main parts of another embodiment, and FIG. 5 is a vertical front view of the same.
FIG. 6 is a vertical side view showing a conventional raw tea leaf management device.

Claims (1)

[Claims] 1. A feeding conveyor having approximately the same length as the storage tank is attached to the top of a storage tank whose bottom surface is formed by a permeable conveyor and whose front surface is open, and a rail is further provided along the feeding conveyor. A raw tea leaf management device, comprising: a traveling pedestal mounted thereon that straddles a feed conveyor, and a sweeping brush for sweeping the raw tea leaves on the feed conveyor into a storage tank attached to the traveling pedestal. 2. The raw tea leaf management device according to claim 1, wherein a dispersion blade is attached to the traveling platform on a falling trajectory of the raw tea leaves swept by the sweeping brush.