JPH0154005B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention stores and stores raw tea leaves picked from tea fields and collected at a tea factory, and supplies them to a processing line in appropriate amounts according to the processing capacity of the tea factory. This invention relates to an automatic storage device for green tea leaves.

[Conventional technology and its problems]

Generally, fresh leaves picked from tea plantations are stored and stored in a fresh leaf room with a ventilated floor, but transportation to this fresh leaf room can be carried out manually or by spraying on the ceiling of the fresh leaf room. It is sprayed onto a ventilated floor surface by a device and stored. In this case, in order to create the above-mentioned ventilated floor surface, it is necessary to dig a pit in the floor surface, and in order to install the spraying device on the ceiling, the building must be constructed with a special construction. This requires a great deal of expense and construction time.Furthermore, spraying devices installed in pits or ceilings are fixed in place and cannot be moved. Therefore, a conveyor type fresh leaf storage device has been developed to solve the above problems.

Utility Model Publication No. 58-23227 can be mentioned as an example of the above-mentioned conveyor-type fresh leaf storage device. , a uniform feeding device consisting of a spreading device for uniformly stacking fresh leaves only in the width direction of a wide conveyor serving as a storage tank is provided.

Fresh leaves picked from tea plantations are generally stored in bags or
Approximately 3 to 4 hours have passed by the time the fresh leaves are loaded into baskets and transported to the tea factory, and during this time the temperature has reached 30℃ to 40℃ due to the heat generation effect of the fresh leaves themselves.
If the fresh leaves are stacked and stored in the fresh leaf storage device in this state, the heat in the fresh leaf pile will remain without being released, causing a phenomenon called "burning" and deteriorating the quality of the fresh leaves.

In addition, it is not possible to simply deposit fresh leaves that are carried in uniformly only in the wide direction of the endless transport belt that forms the storage device, but if the endless transport belt is operated to move the fresh leaves accumulated at a certain height to the delivery end side. , due to the influence of the left and right side walls, the piled fresh leaves are pulled backwards and collapse, making it impossible to pile them up high (3rd
(see figure).

Even if the endless transport belt is activated to move the tea leaves, in order to maintain a certain pile height without collapsing, it is necessary to
It is necessary to deposit the particles not only in the wide direction of the endless transport belt but also in the long direction to a predetermined height over about 2 to 3 m or more before moving.

[Problem to be solved by the invention]

The present invention has been made in view of the above points, and
The above-mentioned important problems in configuring a conveyor-type fresh leaf storage device are solved, and the picked fresh leaves are treated with cold air to be stored in the fresh leaf storage device, and the cold air is used to store the fresh leaves in the storage chamber. It is an object of the present invention to provide an automatic storage device for green tea leaves that is capable of stacking tea leaves over a predetermined distance not only in the wide direction but also in the long direction of an endless transport zone that forms the floor surface.

[Means to solve the problem]

In order to achieve the above-mentioned object, the automatic green tea leaf storage device of the present invention has a conveyor-type green tea leaf storage chamber whose storage floor is formed by an air permeable endless transport zone, with one end serving as a delivery end and the other end serving as a delivery end. A receiving end is provided, a cutting means is provided at the sending end, and a conveying means connected to a processing line is provided below the cutting means, an input conveyor is provided at the receiving end, and a cutting conveyor is provided below the input conveyor. The cool air outlet of the fan faces the delivery end of the input conveyor, and the cool air removes hot air from the input fresh leaves while scattering the fresh leaves onto the permeable floor surface.

[Effect]

The automatic fresh tea leaf storage device according to the present invention has one end of a fresh leaf storage chamber in which a storage floor is formed of an air permeable endless transport zone as a delivery end, and the other end as a reception end, and a cutting means is provided at the delivery end. The stacked fresh leaves that are moving are cut down and conveyed to the processing line by a conveying means provided below, and the receiving end is provided with an input device for feeding the fresh leaves into the fresh leaf storage chamber. A conveyor is provided, and a cold air outlet of a fan provided below the input conveyor is made to face the delivery end of the input conveyor, and the cold air blown out from the outlet is used to cool the hot leaves from the input fresh leaves. In addition to this, it is also possible to spray over a predetermined distance in the longitudinal direction of the endless transport belt that forms the floor of the fresh leaf storage chamber, so that even if the endless transport belt is operated and the accumulated fresh leaves are moved, they cannot be processed. The above-mentioned fresh leaves deposited as one load on the line are moved while maintaining the same height.

〔Example〕

An embodiment of the present invention will be described based on FIGS. 1 and 2.

In the figure, 1 is a permeable endless transport zone,
The air permeable endless strip 1 constitutes a storage floor surface 1',
A blow chamber 2 with a blower 3 attached to the side is formed on the lower surface thereof. The air permeable endless belt 1 described above is installed on the sprockets 4 and 5 via a drive chain, and both sides of the storage floor surface 1' are connected to the side walls 6,
7 forms a fresh leaf storage chamber A consisting of a storage conveyor, and a cutting device 8 for cutting down accumulated and moving fresh leaves is provided at the upper part of the sending end side of the fresh leaf storage chamber A. A conveyor 9 connected to the tea factory line is disposed below the tea factory line 8.

An inclined input conveyor 10 is disposed on the receiving end side which is the starting end side of the fresh leaf storage chamber A described above, and a cold air fan 11 is installed below the input conveyor 10. Reference numeral 12 denotes a blowout port at the tip of the cold air fan 11, which faces the delivery end of the input conveyor 10, and allows the blowout direction to be adjusted up and down. Further, the front upper surface of the air outlet 12 is covered with a wire mesh to prevent fresh leaves blown away by the cold air from the air outlet 12 from scattering.
It is surrounded by 3. 15 is a level sensor for sensing the height of fresh leaves deposited on the storage conveyor A.

Since this embodiment is configured as described above, the fresh leaves picked and collected from the tea fields are transferred to the input conveyor 10.
The fresh leaves picked from the tea fields are fed into the receiving end side of the storage conveyor A.
Approximately 3 to 4 hours pass by the time the fresh leaves are loaded into bags, baskets, etc. and transported to the tea factory, and during this time the temperature reaches about 30 to 40 degrees Celsius due to the heat generation effect of the fresh leaves themselves. In this system, a blower fan 11 is installed below the input conveyor 10, and its outlet 12 faces the delivery end of the input conveyor 10, so that the fresh leaves conveyed by the input conveyor 10 are At the delivery end, the hot air is blown away by the air, and the hot air is removed from the storage floor 1'.
Scattered upwards. At the time of this dispersion, the cold air outlet 12 is swung up and down, and the strength of the cold air is repeated to increase and decrease the strength of the cold air. Blow room 2
Spray over an area of about 1 block (approximately 2 to 3 meters).

When the height of the stack of fresh leaves spread as described above reaches a height that can be detected by the level sensor 15, the feeding is temporarily interrupted and the endless transport belt 1 is operated to remove the stack of fresh leaves 16 by one block. It is then moved and the next batch of fresh leaves is started again. The position of the level sensor 15 described above can be adjusted in height depending on the purpose of accommodation.

As described above, the fresh leaves scattered in the fresh leaf storage chamber A and deposited at a predetermined height are ventilated by the blower 3 from the lower surface of the air permeable endless transport zone 1,
While being stored as cold air, it moves little by little towards the delivery end.
It is cut down by a cutting device 8 according to the throughput of the processing line, and is conveyed to the processing line by a conveyor 9.

As mentioned above, the freshly picked leaves are tightly packed in bags or baskets and brought to the tea factory.
It forms a nodule, and the temperature inside it is quite high (about 40℃) due to the heat generation effect of the fresh leaves. If they were stored as they were, they would not be able to have sufficient ventilation, causing a "leaf scorch" phenomenon and damaging the fresh leaves. However, in this example, as mentioned above, they would be put in a lump shape. The fresh leaves conveyed by the conveyor 10 are also scattered by cold air at the sending end of the input conveyor 10, which is the input position from the input conveyor 10 to the fresh leaf storage chamber A, so that the fresh leaves that are sent in the above-mentioned cluster shape are also scattered. It can be broken up into pieces, and the cold air can be applied to each piece to completely remove the hot air.

In addition, by adjusting the strength of the cold air blowing out when the feeding conveyor 10 is feeding the fresh leaves, the fresh leaves are accumulated while covering the entire surface corresponding to one block of the above-mentioned blowing chamber 2 on the receiving end side. Ventilation from the room does not escape from the space, and ventilation is carried out effectively even while fresh leaves are being received. In addition, when introducing fresh leaves, not only the wide direction of the endless transport zone 1, but also the
Since it is possible to deposit leaves in a length equivalent to one block in the longitudinal direction, even if the endless transport belt 1 is operated to move the accumulated leaves, the accumulated leaves equivalent to one block will not be deposited. It moves as it is and does not lose its height. Therefore, a larger amount of fresh leaves can be deposited and stored.

Normally, in order to spread fresh leaves in the longitudinal direction of the endless transport belt 1, it is necessary to provide an auxiliary spreading conveyor or the like in addition to the input conveyor.
In this embodiment, as described above, by using the cooling air from the cold air fan 11, it is possible to spray in the longitudinal direction without the need for mechanical means such as an auxiliary spreading conveyor, which is reasonable. The equipment is inexpensive.

〔Effect of the invention〕

The automatic fresh tea leaf storage device according to the present invention has one end of the fresh leaf storage chamber in which the storage floor is formed by an air permeable endless transportation belt as a delivery end, and the other end as a receiving end, and the tea leaves are cut into pieces at the delivery end. A means is provided to cut down the moving accumulated fresh leaves and conveyed to the processing line by a conveying means provided below, and
An input conveyor for inputting fresh leaves into the fresh leaf storage chamber is disposed at the receiving end, and a cold air outlet of a fan provided below the input conveyor faces the output end of the input conveyor. The cold air blown out from the outlet blows away the fresh leaves that are thrown in from the delivery end of the feeding conveyor, so the clumps of fresh leaves are broken up, and the cold air hits each leaf, completely removing the hot air. In addition, it is possible to spray a predetermined distance in the longitudinal direction of the endless transport belt that forms the floor of the fresh leaf storage chamber by scattering with the cold air described above, and mechanical auxiliary means such as a special scattering conveyor are used. Since this invention does not require any equipment, the cost of the device is also low, and this is an advantageous invention from this point of view as well.

[Brief explanation of drawings]

1 and 2 of the drawings show an embodiment of the automatic green tea leaf storage device of the present invention, FIG. 1 is a plan view, and FIG. 2 is a partially cutaway front view. FIG. 3 is an explanatory diagram showing the receiving end of a conventional conveyor type automatic green tea leaf storage device. 1: Breathable endless transport zone, 1': Accommodation floor surface, A:
Fresh leaf storage chamber, 8: Trimming device, 9: Conveyor conveyor, 10: Input conveyor, 11: Fan, 12:
Air outlet.

Claims (1)

[Scope of Claims] 1. One end of a conveyor-type green tea leaf storage chamber whose storage floor is formed of an air permeable endless transport zone is used as a delivery end, and the other end is used as a receiving end, and the delivery end is provided with a cutting means. At the same time, a conveying means connected to the processing line is provided at the lower part of the cutting means, an input conveyor is provided at the receiving end, and a cold air outlet of a fan provided below the input conveyor is connected to the output end of the input conveyor. An automatic storage device for green tea leaves, characterized in that the fresh leaves are scattered onto the permeable floor surface while removing hot air from the input fresh leaves with the cold air. 2. The tea according to claim 1, wherein the spraying range of fresh leaves to be cooled and sprayed can be adjusted by changing the strength and direction of the cold air blown out from the cold air outlet facing the delivery end of the input conveyor. Automatic storage device for fresh leaves.