JPH0536368Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a three-dimensional tea leaf management device for temporarily storing fresh tea leaves in a tank until the leaves are subjected to tea processing.

[Conventional technology] Freshly picked green tea leaves are still highly active in respiration, and if left as is, the respiratory heat will be trapped between the green tea leaves, which will gradually heat up and change the quality of the green tea leaves, resulting in a significant loss of quality. It happens.

Therefore, conventionally, a management device has been used that blows cold air between green tea leaves to remove the above-mentioned respiratory heat and maintain the green tea leaves in a cooler state.

As one of the above-mentioned management devices, there is a conveyor type in which the bottom surface of a storage chamber for green tea leaves is made into an air permeable endless transport zone and cool air is ventilated from below.
Furthermore, this conveyor system can automatically perform everything from inputting green tea leaves to taking them out.
In recent years, the above-mentioned conveyor type has become mainstream as a management device.

However, in order to ensure that cold air is ventilated from below between the stored green tea leaves, it is necessary to
Since they can be stacked in layers of about 1 m, the amount of green tea leaves that can be accommodated per unit area of the tea leaf chamber is too small if the above-mentioned conveyor type is simply arranged in a planar manner.

Therefore, JP-A-55-93733 and JP-A-55-93733,
As disclosed in Japanese Patent No. 96030, there is a conveyor in which a plurality of stages are installed so that a large amount of green tea leaves can be accommodated per unit area.

[Problem to be solved by the invention] However, the former of the above conventional techniques,
Since the input end and the output end of a multi-stage conveyor are arranged alternately, and the conveyors in each stage are connected, the only option is to take out items in the order of input, which is called first in, first out. When loading and unloading tea leaves at the same time, even if there is a blank space where there are no green tea leaves in the middle of the conveyor, it is not possible to fill it up. Although it is possible to do this, the raw tea leaves that have been input are sent to each stage in order, and the tea leaves that have been input first are taken out in order, so even if there is a gap in the middle, it is impossible to fill it up, which reduces the efficiency of storage. The problem is that it is not good.

In addition, while the green tea leaves that have been placed at one end of the conveyor are forwarded and stored toward the other end, friction occurs between the stacked green tea leaves and the left and right walls, causing friction between the green tea leaves and the wall. It is easy to create gaps between the
The result is that the cold air vented from below is likely to short-circuit from there, and as a result, the green tea leaves in the vicinity cannot be cooled by ventilation, and some may become hot and deteriorate.

Therefore, the present invention solves the above problems and
The green tea leaf management device has a large capacity for storing green tea leaves per unit area of installation, and it is also possible to input green tea leaves into any part of the multi-stage conveyor, making it easy to fill in blank areas where there are no green tea leaves. The purpose of the present invention is to provide a three-dimensional green tea leaf management device that is highly efficient and capable of reliably managing fresh tea leaves without shorting the ventilation during storage.

[Means for Solving the Problems] In order to achieve the above object, the three-dimensional green tea leaf management device according to the present invention is formed by providing a starting wall and left and right side walls on a long air permeable endless transport belt. A green tea leaf management means comprising a storage tank for green tea leaves, a large number of wind guides formed along the longitudinal direction under the endless transport belt of the storage tank, and a scraping device disposed on the delivery end of the endless transport belt. arranged vertically in a plurality of stages in the same direction, movable by a moving rail constructed over the entire length of the storage tank of the green tea leaf management means in each stage, and approximately half of the storage tank. A scattering conveyor that can be rotated forward and backward depending on its length, a green tea leaf guide plate slanted downward at the sending end of the endless transport belt on each stage so as to cover the scraping device directly below, and a tea leaf guide plate on the bottom endless transport belt. Its feature is that it is comprised of a take-out conveyor disposed below the delivery end.

[Function] The three-dimensional fresh tea leaf management device according to the present invention has a plurality of vertically arranged green tea leaf management means each having approximately half the length of the storage tank of the fresh tea leaf management means in the longitudinal direction. A scattering conveyor that can be rotated forward and backward is movable along a rail built over the entire length of the storage tank at the top of the storage tank. It is possible to supply fresh tea leaves, and in supplying the green tea leaves, there is no need to move the endless transportation belt that constitutes the fresh tea leaf management means, even if a blank space occurs on the storage tank. The above-mentioned scattering conveyor can easily fill the blank space. In addition, the stacked green tea leaves can be scraped off evenly by the scraping device installed on the sending end of the endless transport belt of the green tea leaf management means at each stage, and the scraping device directly below is covered. A green tea leaf guide plate is installed diagonally downward at the sending end of the endless transport belt of each stage, so that the green tea leaves scraped off by the green tea leaf guide plate are smoothly delivered directly to the take-out conveyor provided at the bottom. It is something that can be dropped.

In addition, if the width of the spreading conveyor is narrower than the width of the endless transport belt, it is possible to evenly drop the green tea leaves in the width direction of the storage tank by attaching spreading means to both ends of the spreading conveyor. It becomes possible.

[Example] Embodiments of the present invention will be described based on the drawings.

In the figure, reference numerals 11, 12, and 13 are relatively long, air-permeable endless transport belts that are arranged vertically in multiple stages in parallel at predetermined intervals between machine frames (not shown) on the floor of the tea leaf chamber. , each of the endless transport belts 11, 12,
A starting end wall 14 and left and right side walls 15 and 16 are provided on the starting end wall 14 and left and right side walls 15 and 16.
A storage tank for green tea leaves with an endless transport zone at the bottom.
is formed.

In addition, each of the endless transport belts 11, 12, 13 described above
A scraping device 17, 17 for uniformly scraping off the stacked surface of the green tea leaves that have reached the delivery end when green tea leaves are stacked in the storage tank a and the endless transport belt is operated to send out the green tea leaves. , 17 are disposed, and the scraping device 17 is a device that ensures scraping, such as one in which the scraping claws are rotated by a chain drive and brought into contact with the laminated surface to scrape up the green tea leaves while separating and dropping them. It can be anything as long as it is possible.

A large number of wind guides 21, 21, . is connected to a blower 22, and each of the wind guides 21, 21, ... is formed in the shape of a box with an open top surface, and a sealing member (not shown) is attached to the upper side of the box, and an endless transport belt is connected through the sealing member. 1
1, 12, and 13 are in sliding contact to prevent air leakage.

The endless transport belt 11 in one stage, the starting end wall 14 provided on the upper part, and the left and right side walls 15, 16
A storage tank a formed by a storage tank a, and a large number of wind guides 21 provided along the longitudinal direction in the lower part of the storage tank a,
A green tea leaf management means 1 is formed by a scraping device 17 disposed on the delivery end of the endless transport belt 11, and in this embodiment, the green tea leaf management means 1 is the uppermost stage.

Similarly, a storage tank a with the bottom surface of the endless transport zone 12
, a wind guide 21 formed at the lower part of the storage tank a, and a scraping device 1 provided on the delivery end of the endless transport belt 12.
A fresh tea leaf management means 2 is formed by 7, and in the embodiment, the fresh tea leaf management means 2 is located at the interruption, and in the same manner, a fresh tea leaf management means 3 having a storage tank having the endless transport zone 13 as the bottom is formed. The management means is provided at the bottom, and the plurality of green tea leaf management means 1, 2, and 3 are stacked in multiple stages in the same direction.

Next, a description will be given of a device for separately supplying fresh tea leaves to each of the fresh tea leaf management means 1, 2, and 3 described above. Moving rails 31, 31, 31 are installed over the entire length of the storage tank a in the longitudinal direction.
2, 32, 32 are suspended, and the dispersion conveyor 3
2, 32, 32 are the aforementioned moving rails 31, 3.
1 and 31, and each of the scattering conveyors 32, 32, 32 is capable of forward and reverse rotation.

Therefore, when putting fresh tea leaves into the storage tank a, for example, while rotating the belt 33 in the normal direction, the dispersing conveyor 32
By reciprocating the material along the moving rail 31, the material can be poured into the front half of the storage tank a so as to gradually increase the layer thickness.
Furthermore, by moving the belt 33 in the reverse direction, it is possible to similarly charge the latter half of the storage tank a.

34, 35, 36 are scattering conveyors 32 at each stage,
32, 32 are intermediate conveyors for conveying green tea leaves, and 37, 38, 39 are conveyors for conveying shipped green tea leaves to intermediate conveyors 34, 35, 36.

By the way, if the belt width of the above-mentioned scattering conveyor 32 is more than half of the belt width of each endless transport belt 11, 12, 13, if green tea leaves are introduced from the end of the scattering conveyor 32, each endless transport belt 11,
A stack of green tea leaves is formed with a substantially uniform thickness in the width direction of the tea leaves 12 and 13, but if the belt width of the scattering conveyor 32 is narrow, simply dropping the tea leaves will not spread the leaves in the width direction. Therefore, it is necessary to spread it evenly in the width direction. In this embodiment, since the belt width of the dispersing conveyor 32 is narrow, a solution to this problem is provided by providing dispersing means 40 at both ends of the dispersing conveyor 32 so that the dropped green tea leaves are evenly spread in the width direction. It's on.

The above-mentioned spreading means 40 includes a rotating body 41 rotatably suspended below both ends of the dispersing conveyor 32, a motor 42 for rotating the rotating body 41, and a rotating body 4.
The rotating body 41 is pivoted at a position where the green tea leaves dropped from the end of the scattering conveyor 32 fall exactly on the center thereof. The rotating body 41 includes a disk-shaped rotating plate 44 fixed to the lower part of the rotating shaft 43, and a cone integrally formed on the center of the rotating plate 44 with a diameter of about half of the rotating body 44. 45 and a blade 46 having approximately the same diameter as the rotary plate 44 and integrally formed below the rotary plate 44. The rotation speed of the rotary plate 41 is preferably about 550 rpm. has a width approximately equal to the width of storage tank a.

In this example, the explanation was given of a device having multiple stages of green tea leaf management means in the vertical direction.
Furthermore, as shown in FIG. 2, a plurality of green tea leaf management means may be provided in parallel in each stage. In this case, a scattering conveyor 32 is provided above each green tea leaf management means.

Further, 61 is a take-out conveyor provided below the take-out end of the endless transport body 13 at the lowest stage;
is a green tea leaf guide plate installed diagonally downward so as to cover the scraping device 17 on the stage immediately below at the take-out end of each endless transporter, and the green tea leaves sent out and falling are guided by the guide plate 62. Scraping device directly below 1
7 directly onto the take-out conveyor 61.

Since the present embodiment is configured as described above, the operation of sequentially putting shipped green tea leaves into each storage tank a is as follows: First, when putting green tea leaves into the bottom right storage tank a, Conveyor 39
, the intermediate conveyor 36 is rotated in the normal direction, and the belt 33 is rotated in the normal direction while the spreading conveyor 32 on the storage tank a is moved, and the spreading means 4 is also rotated in the normal direction.
Activate 0 and start adding fresh tea leaves from the first half. When the tea leaves are fed in this way, while the left end of the dispersion conveyor 32 repeatedly moves back and forth from side to side over approximately the front half of the storage tank a, a stack of green tea leaves is formed on the front half and gradually becomes thicker. The bed pressure that can be formed by one movement from side to side is adjusted by changing the speed of movement of the spreading conveyor 32. Further, as shown in FIG. 3, sensors 51 for checking green tea leaves are provided at both ends of the scattering conveyor 32.
If 2 moves only when the green tea leaves are put in, a more even stack can be formed.

When the stack of green tea leaves formed on the front half of this storage tank a reaches a height of 80 to 100 cm, depending on the nature of the green tea leaves, the belt 33 of the dispersion conveyor 32
is reversed, and the spreading means 40 at the right end of the spreading conveyor 32 is rotated. This causes the spreading conveyor 32
Fresh tea leaves are sequentially dropped from the right end onto the rear half of storage tank a. As in the first half described above, when the green tea leaves are stacked up to a predetermined height, the feeding of the green tea leaves into this storage tank is completed. Therefore, the transport conveyor 39, the intermediate conveyor 36, and its dispersing conveyor 32 are stopped, and if there are still shipped green tea leaves, the transport conveyor 39 is stopped so that they can be thrown into the storage tank a on the upper stage, for example. , the intermediate conveyor 35, and the scattering conveyor 32 above the storage tank a are operated, and the feeding of green tea leaves from the front half of the storage tank a is started again. FIG. 1 shows the state at this time.

As described above, fresh tea leaves are sequentially put into the storage tank a of each stage.

By the way, when putting green tea leaves into each storage tank a and stacking them as described above, the blower 22 connected to the wind guide 21 at the bottom of the storage tank a is activated in advance.
The cold air around each blower 22 is supplied to each wind guide 21, and furthermore, the endless transport bodies 11, 12 on the upper surface thereof,
13 and is supplied between the stacks of green tea leaves above it, and when the cold air passes between the green tea leaves, it takes away the respiratory heat generated between the green tea leaves, so the green tea leaves are cooled by ventilation. , kept cooler,
The raw tea leaves will be managed to sufficiently suppress their deterioration.

Further, in this embodiment, the scattering conveyor 32
Since the dispersing means 40 is provided at the end of the
The green tea leaves can be cooled and sprayed almost uniformly in the width direction of the endless transport bodies 11, 12, and 13, which are the bottom surfaces of each storage tank a, without damaging them. That is, the green tea leaves introduced from the end of the scattering conveyor 32 are once received by the rotating rotary plate 44 and dispersed around the surrounding area by the centrifugal force caused by the rotation, but only the conical part 45 is formed at the center where the centrifugal force is weak. Since there are no guide blades on the surface, the green tea leaves will not be damaged when spraying. In addition, since it is not possible to spread green tea leaves over a wide area only by the centrifugal force of the rotary plate 44, in this embodiment, a blade 46 is integrally provided on the back surface of the rotary plate 44.
The green tea leaves that have fallen around the rotary plate 44 are blown away by the wind force and fall relatively evenly and spread over a wide range. As mentioned above, the fresh tea leaves are blown away by the wind, so there is no damage to the fresh tea leaves, and at this time, heat is radiated from each fresh tea leaf, so a cooling effect can be expected. .

In addition, the green tea leaves blown around the rotating body 41 fall directly onto the storage tank a, but those with force collide with the banners 48 around the rotating body 41, and only the wind passes through the banners 48. The green tea leaves fall onto the storage tank a along the hanging windings 48, and together with the reciprocating movement of the scattering conveyor 32 itself described above, the tea leaves fall onto the storage tank a.
A stack of green tea leaves having a substantially uniform layer thickness is formed on top.

When the green tea leaves stored in each storage tank a are to be taken out from the lowest storage tank a, for example, the endless transport belt 13 is gradually or intermittently removed while operating the scraping device 17. When activated, the green tea leaves in the storage tank a on the endless transport belt 13 are sent out toward the delivery end, and the scraping device 17
The tea leaves are scraped off little by little and fall to the take-out conveyor 61 below, where they are conveyed as they are to the tea processing machine. The same is true when taking out the green tea leaves in the upper or middle storage tank a, but in this case, the green tea leaves falling from the delivery end of the endless transport belt 11 or 12 cover the scraping device 17 directly below. As the green tea leaf guide plate 62 is installed diagonally downward as shown in FIG. The fresh tea leaves are never touched.

Furthermore, when the fresh tea leaves in the storage tank a are being removed as described above, a blank area with no fresh tea leaves is created on the starting end side, but when the shipped green tea leaves cannot be accommodated elsewhere, the blank area is By operating the dispersing conveyor 32 and dispersing means 40 disposed at the top and moving the end of the dispersing conveyor 32 back and forth between the length of the blank area, green tea leaves can be easily stacked and stored in the blank area. It is possible.

In addition, in order to drop green tea leaves over the entire width of the storage tank a, it is possible to make each scattering conveyor 32 itself moveable in the width direction, but in this case, the intermediate conveyors 34 and 35 may be moved in accordance with the movement. ，
However, according to the dispersing means 40 of this embodiment, the intermediate conveyors 34, 35, and 36 can remain fixed, and the structure is simple and inexpensive. It is.

[Effects of the invention] The three-dimensional green tea leaf management device according to the invention has a plurality of vertically arranged green tea leaf management means each having a storage tank with an endless transport zone at the bottom, so that the amount of fresh tea leaves per unit area can be reduced. The storage capacity can be increased, and furthermore, each of the storage tanks arranged in the sub-tiers is equipped with a dispersion conveyor that is movable in the longitudinal direction and has a length approximately half of the storage tank. Therefore, fresh tea leaves can be placed anywhere in each storage tank, and the efficiency of storing fresh tea leaves is extremely high.
Since there is no need to move the endless transportation belt when storing the green tea leaves mentioned above, there is no gap between the left and right side walls of the storage tank, and the ventilation from the wind guide ensures ventilation between each green tea leaf. It is possible to maintain the quality of raw tea leaves.

Furthermore, when taking out the green tea leaves, the stacked green tea leaves can be evenly scraped off by the scraping device installed on the delivery end of the endless transport belt.
Furthermore, since the green tea leaf guide plate is installed diagonally downward at the delivery end so as to cover the scraping device of the green tea leaf management means directly below, the green tea leaves scraped from above slide on the green tea leaf guide plate. It is dropped onto the take-out conveyor without touching the scraping device below.

Furthermore, if each scattering conveyor is equipped with means for dispersing green tea leaves at both ends, even if the width of the endless transport zone is much wider than that of the dispersing conveyor,
It is possible to drop green tea leaves almost evenly in the width direction, and at that time, the green tea leaves are cooled and fall one by one, which has a heat dissipation effect, which in turn reduces deterioration of the green tea leaves. It is effective.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway front view, FIG. 2 is a view taken along the line A--A, and FIG. 3 is a detailed view of the dispersion means. 11, 12, 13... Endless transport belt, 14... Start wall, 15, 16... Left and right side walls, 17... Scraping device, 21... Wind guide, 22... Air blower, 31...
...Rail, 32 ... Spreading conveyor, 40 ... Spreading means, 61 ... Take-out conveyor, 62 ... Tea leaf guide plate, a ... Storage tank.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A storage tank for green tea leaves formed by providing a starting end wall and left and right side walls on a long permeable endless transport belt, and a storage tank for tea leaves formed under the endless transport belt of the storage tank along its longitudinal direction. A plurality of fresh tea leaf management means are arranged vertically in the same direction, each consisting of a plurality of wind guides formed with a wind guide and a scraping device disposed on the delivery end of the endless transport belt, and the green tea leaves of each of the stages are arranged vertically in the same direction. A spreading conveyor that is movable by a moving rail installed over the entire longitudinal length of the storage tank of the management means and that can be rotated forward and backward over approximately half the length of the storage tank, and a scraping device directly below the storage tank. It is characterized by being composed of a green tea leaf guide plate installed diagonally downward at the sending end of the endless transport belt of each stage so as to cover it, and a take-out conveyor arranged below the sending end of the endless transport belt of the lowest stage. A three-dimensional tea leaf management device. (2) The three-dimensional green tea leaf management device according to claim 1, characterized in that the scattering conveyor is provided with green tea leaf scattering means that are moved together with the scattering conveyor at both ends thereof.