JPH10262562A - Method for charging raw tea leaf and raw tea leaf charging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the cause of over-roasting of tea leaf by measuring the thickness of raw tea leaves on a tea leaf charging apparatus and adjusting the moving speed of the apparatus according to the thickness, thereby charging the raw tea leaves to a raw tea leaf controlling container at a uniform thickness and preventing the generation of unevenness of the thickness. SOLUTION: The thickness of raw tea leaves on a charging apparatus for charging raw tea leaves into a tea leaf controlling container is measured and the moving speed of the charging apparatus is increased when the measured thickness is larger than the preset level and slowed down when it is thinner than the preset level. The raw tea leaves can be charged into the tea leaf controlling container at a uniform thickness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for charging fresh tea leaves and a method for feeding fresh tea leaves into a fresh tea leaf management container so that the fresh tea leaf stacking height in the fresh tea leaf management container is uniform. The present invention relates to a fresh leaf feeding device.

[0002]

2. Description of the Related Art In the prior art, a sensor (limit switch or photoelectric switch) for confirming the presence of fresh tea leaves in a fresh tea leaf management container is provided at the front and rear ends of a charging device. This is to detect whether or not fresh tea leaves are present in the fresh tea leaf management container and whether or not the fresh tea leaves are stacked at a set value or more, and the input device is operated or stopped based on the detected value.

[0003]

When the fresh tea leaves are repeatedly operated and stopped as in the prior art and the fresh tea leaves are put in, irregularities are formed on the stacking surface of the fresh tea leaves, and the fresh tea leaves are uniformly stacked in the tea fresh leaf management container. I couldn't do that. The fresh tea leaf management container is used to prevent fresh tea leaves from burning and to keep freshness by exposing fresh tea leaves stacked using a breathable endless transport zone to cool air. Is uneven, it is easy for cold air to pass through a concave portion and hardly to pass through a convex portion. Then, there is a problem that the fresh tea leaves are dried in the concave portion due to too much wind, and the convex portions are stuffy and cause leaf burning. In addition, as in the related art, if the stacking state of the fresh tea leaves in the fresh tea management container is checked and then the input device is operated and stopped, the response is gradually slowed down.

[0004] In view of the above problems, it is necessary to stack fresh tea leaves at a uniform height without irregularities, and to stack them in a tea fresh leaf management container without gaps. The present invention
Rather than stacking the height of the fresh tea leaves on the fresh tea management container and stacking it on the fresh tea management container, instead of controlling the input device, look at the state of the fresh tea leaves that are about to be thrown in,
It is intended to control in advance.

[0005]

Means for Solving the Problems To solve the above problems, the present invention takes the following means. (1)
Measure the thickness of the fresh tea leaves on the feeding device for feeding the fresh tea leaves into the fresh tea management container, adjust the moving speed of the feeding device according to the thickness of the fresh tea leaves, to the uniform height of the fresh tea management container A method for feeding fresh tea leaves. (2) Measure the thickness of the fresh tea leaves on the feeding device for feeding the fresh tea leaves into the fresh tea leaf management container, and when the thickness of the fresh tea leaves is thicker than the set value, increase the moving speed of the feeding device to reduce the fresh tea leaves. When the thickness is thinner than a set value, a method for feeding fresh tea leaves, in which the moving speed of the feeding device is adjusted by reducing the moving speed of the feeding device. (3) The thickness of the fresh tea leaves on the feeding device for feeding the fresh tea leaves into the fresh tea leaf management container is measured, and the moving speed of the feeding device according to the thickness of the fresh tea leaves is set in advance to correspond to the measured thickness. 2. The method for feeding fresh tea leaves according to claim 1, wherein the moving speed of the feeding device is selected and adjusted. (4) The feeding device for feeding fresh tea leaves into the fresh tea management container is provided with means for measuring the thickness of the fresh tea leaves on the feeding device and means for controlling the moving speed of the feeding device based on the thickness of the fresh tea leaves. Fresh tea leaf feeding device. (5) Measure the thickness of the fresh tea leaves on the feeding device for feeding the fresh tea leaves into the fresh tea management container, and determine the stacking height of the fresh tea leaves of the fresh tea management container from the thickness of the fresh tea leaves and the moving speed of the feeding device. How to put fresh tea leaves. (6) A means for measuring the thickness of fresh tea leaves on the feeding device, a means for controlling the moving speed of the feeding device, a thickness and feeding of the fresh tea leaves, into a feeding device for feeding fresh tea leaves to the fresh tea leaf management container. A fresh-leaf-leaf feeding device, comprising: a calculating means for obtaining a fresh-leaf-stacking height of the fresh-leaf tea container from the moving speed of the device. (7) The device for feeding fresh tea leaves according to (4) or (6), wherein a level sensor is provided as means for measuring the thickness of the fresh tea leaves on the feeding device. (8) As means for measuring the thickness of fresh tea leaves on the feeding device, a tea leaf contact plate fixed to a shaft and a means for measuring the inclination of the tea leaf contact plate are provided (4) or (6). The fresh tea leaf input device according to the above.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS When the apparatus for feeding fresh tea leaves configured as described above is started, the thickness of fresh tea leaves on an input device for feeding fresh tea leaves to a fresh tea leaf management container is measured, and the fresh tea leaves are measured. The moving speed of the feeding device is adjusted according to the thickness to feed fresh tea leaves. Moreover, the stacking height of the fresh tea leaves of the fresh tea leaf management device can be obtained from the thickness of the fresh tea leaves and the moving speed of the input device, and the stacking state of the fresh tea leaves in the fresh tea leaf management container can be grasped.

[0007]

Embodiments will be described with reference to the drawings.
In the drawing, reference numeral 1 denotes a breathable endless transport zone, which forms a storage floor surface, a blower chamber 2 is formed on a lower surface of the storage floor surface, and a blower fan 3 is provided in the blower chamber 2. . The breathable endless transport zone 1 is connected to and linked to a drive chain (not shown) wound around a sprocket 4 so that both side surfaces of the storage floor described above are surrounded by side walls 5 to store fresh tea leaves. It has become. At the sending end side of the endless transport zone 1, a device 6 for scraping fresh tea leaves is provided. The tea fresh leaf management container is configured as described above. Below the scraping device 6, a conveyor 7 connected to the tea processing line is provided.

[0008] Reference numeral 8 denotes a sprinkling conveyor having a length substantially half the length of the fresh tea leaf management device, which is rotatable forward and backward. Reference numeral 9 denotes a rail having substantially the same length as the width of the endless transport zone 1, and the spreading conveyor 8 is moved on the rail 9 by the wheels 10 and the motor 19 in the width direction of the endless transport zone 1. Reference numeral 11 denotes a rail provided on the side wall 5, and a rail 9 on which the scatter conveyor 8 is mounted is moved in the longitudinal direction of the endless transport zone 1 by wheels 12 and a motor 20. With these devices,
The spraying conveyor 8 sprays fresh tea leaves over the entire width and the entire length of the endless transport zone 1.

Reference numeral 13 denotes a charging conveyor disposed substantially at the center of the endless transport zone 1 in the longitudinal direction.
It moves on the top in the width direction of the endless transport zone 1 and can be rotated forward and backward. The input conveyor 13 moves in the width direction of the endless transport zone 1 so that the delivery end of the input conveyor 13 is always positioned on the distribution conveyor 8, and the input conveyor 13 moves from the input conveyor 13 to the distribution conveyor 8.
Supply fresh tea leaves to Reference numeral 14 denotes a conveyor for supplying fresh tea leaves to the input conveyor 13. In this embodiment, the feeding devices are the spraying conveyor 8, the feeding conveyor 13, and the conveyor 1
4 is configured as shown in the figure.
There is also a case as shown in FIG.

Reference numeral 15 denotes a sensor for measuring the thickness of fresh tea leaves. In this embodiment, a non-contact level sensor is used. 4 to 6 are detailed views of an apparatus for measuring the thickness of fresh tea leaves. The tea leaf contact plate 23 is fixed to a shaft 24, and the shaft 24 is rotatably provided on a conveyor (in the present embodiment, the spraying conveyor 8). The shaft 24 is provided with an angle measuring sensor 25 (for example, an encoder or the like) for measuring the rotation of the shaft 24, the tea leaf contact plate 23 moves, and the shaft 2
When 4 rotates, the angle of rotation can be known. When there are no fresh tea leaves, the tea leaf contact plate 23 is hung on the shaft 24 as shown in FIG. 5, and when the fresh tea leaves pass under the tea leaf contact plate 23, as shown in FIG.
Is inclined by the thickness of the fresh tea leaves. This inclination is measured by the angle measuring sensor 25, and the length of the tea leaf contact plate 23 is known, so that the thickness of the green tea leaf can be known. Other means may be used as long as they can measure the thickness of fresh tea leaves on the feeding device (spraying conveyor 8, feeding conveyor 13 or conveyor 14). The means as described above is provided on the spraying conveyor 8 in order to spread the green tea leaves more evenly, but it is also possible to provide them on the other feeding devices such as the feeding conveyor 13 (FIG. 7), the conveyor 14 and the like. . Spraying conveyor 8,
Since the feeding conveyor 13 rotates forward and backward, the spraying conveyor 8 is rotated.
It is preferable to attach the level sensors 15 to both ends.

Since the apparatus of the present invention is configured as described above, a method for putting fresh tea leaves into the fresh tea managing apparatus will be described. The spraying conveyor 8 is moved to a place on the endless transport zone 1 for accommodating fresh tea leaves. The picked and collected fresh tea leaves are supplied to the spraying conveyor 8 from the receiving place via an input conveyor 13 by an appropriate conveyor and conveyor 14. On the spraying conveyor 8, the thickness of fresh tea leaves to be thrown from the spraying conveyor 8 onto the endless transport zone 1 is measured by the level sensor 15. The measured value is transmitted to the control device 21, the moving speed is determined by the control device 21, and an instruction is issued to the motors 19 and 20.

As a method of determining the moving speed, the standard moving speed of the spraying conveyor 8 and the standard thickness of the fresh tea leaves are determined in advance, and when the spraying conveyor 8 is started, the moving is performed at the standard moving speed. It is determined whether the measured thickness of the fresh tea leaves is thicker or thinner than the standard thickness.
When the thickness is thick, the moving speed of the spraying conveyor 8 is higher than the standard moving speed, and when the thickness is thin, the moving speed of the spreading conveyor 8 is lower than the standard moving speed.

As a method of determining the moving speed, a correspondence table or a relational expression between the thickness of the fresh tea leaves and the moving speed of the spraying conveyor 8 is created in advance. From the thickness of the fresh tea leaves measured by the level sensor 15, the moving speed of the spraying conveyor 8 is determined by a correspondence table or a relational expression. The relationship between the thickness of fresh tea leaves and the moving speed of the spraying conveyor 8 in the correspondence table or the relational expression is proportional. The thicker the thickness of fresh tea leaves, the faster the moving speed of the spraying conveyor 8 becomes, and the thickness of the fresh tea leaves. The moving speed of the spraying conveyor 8 becomes slower as the thickness is smaller.

The spraying conveyor 8 includes rails 9, wheels 10,
The rail 11 and the wheel 1 are moved in the width direction by the motor 19.
2. Since it can be moved in the longitudinal direction by the motor 20, it moves as shown by the arrow. Further, the spraying conveyor 8 is rotated in a forward direction into substantially half of the endless transport zone 1 on the sending end side, and the spraying conveyor 8 is rotated in a reverse direction into the other approximately half. In this way, green tea leaves are fed so that the stacking height of the green tea leaves becomes uniform.

The stacking height of fresh tea leaves can be calculated and calculated by the arithmetic unit 22 as (stacking height of fresh tea leaves = volume of input tea fresh leaves / moving area of the spraying conveyor 8). The fresh tea leaf input volume per unit time can be found by the following equation: Tea fresh leaf input volume = Thickness of tea fresh leaf × Belt speed of spraying conveyor 8 × Belt width of spraying conveyor 8, and the moving area of spraying conveyor 8 is the moving speed of spraying conveyor 8. I understand more. As described above, the stacking height of the fresh tea leaves can be obtained, so that the situation on the endless transport zone 1 can be known, and the stacking height of the fresh tea leaves is displayed on the display unit of the control device 21 so that the air blowing is performed. This can be useful when controlling the operation of the fan 3 and can feed fresh tea leaves to a set height.

Also, if the bulk density of the fresh tea leaves can be known, then the volume of the fresh tea leaves input × the bulk density = the weight of the fresh tea leaves input, the weight of the fresh tea leaves and further the area (the area inside the container is divided into a plurality of areas) You can also know the weight of each).

[0017] The fresh tea leaves that have been thrown in and stacked at a certain height are:
When the air is blown from the lower surface of the endless transport zone 1 by the blower fan 3 and stored in the cool air, and when used for processing, the endless transport zone 1 is moved to the sending end side and scraped off according to the processing amount of the processing line. The sheet is cut off by 6 and transported to a processing line by a conveyor 7.

[0018]

Since the present invention is configured as described above, it has the following effects.

The fresh tea leaves are evenly stacked on the fresh tea leaf management container, the irregularities are eliminated, and the cause of leaf burn is eliminated. Further, the stacking height in the fresh tea leaf management container can be grasped, and the management of the operation of the blower fan and the like can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of an apparatus for managing fresh tea leaves.

FIG. 2 is a front view of the fresh tea leaf management device.

FIG. 3 is a cross-sectional view of the fresh tea leaf management device.

FIG. 4 is a detailed view of a means for measuring the thickness of fresh tea leaves.

FIG. 5 is a detailed view of a means for measuring the thickness of fresh tea leaves.

FIG. 6 is a detailed view of a means for measuring the thickness of fresh tea leaves.

FIG. 7 is a plan view of a fresh tea leaf management device having a different configuration of a device for feeding fresh tea leaves and a mounting position of means for measuring the thickness of fresh tea leaves.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Endless transportation zone 2 Blow room 3 Blow fan 4 Sprocket 5 Side wall 6 Scrubber 7 Conveyor 8 Spraying conveyor 9 Rail 10 Wheel 11 Rail 12 Wheel 13 Feeding conveyor 14 Conveyor 15 Level sensor 16 Tea leaves 17 Rail 18 Motor 19 Motor 19 Reference Signs List 21 control device 22 arithmetic device 23 tea leaf contact plate 24 axis 25 angle measurement sensor (encoder etc.) 26 spraying conveyor belt

Claims (8)

[Claims] 1. A method for measuring the thickness of fresh tea leaves on a feeding device for feeding fresh tea leaves into a fresh tea leaf management container, adjusting a moving speed of the feeding device according to the thickness of the fresh tea leaves, and feeding the fresh tea leaf management container. A method for feeding fresh tea leaves, which comprises feeding fresh tea leaves at a uniform height. 2. When the thickness of the fresh tea leaves is thicker than a set value, the moving speed of the feeding device is increased, and when the thickness of the fresh tea leaves is thinner than the set value, the moving speed of the feeding device is reduced.
2. The method for feeding fresh tea leaves according to claim 1, wherein the moving speed of the feeding device is adjusted. 3. The tea according to claim 1, wherein the moving speed of the dosing device according to the thickness of the fresh tea leaves is set in advance, and the moving speed of the dosing device corresponding to the measured thickness is selected and adjusted. Fresh leaf input method. 4. A feeding device for feeding fresh tea leaves into a fresh tea leaf management container, means for measuring the thickness of the fresh tea leaves on the feeding device, and means for controlling the moving speed of the feeding device based on the thickness of the fresh tea leaves. An apparatus for feeding fresh tea leaves, comprising: 5. A method for measuring the thickness of fresh tea leaves on an input device for feeding fresh tea leaves into a fresh tea leaf management container, and determining a stacking height of fresh tea leaves of the fresh tea leaf management container based on the thickness of the fresh tea leaves and a moving speed of the feeding device. A method for feeding fresh tea leaves, characterized by seeking the quality of fresh tea. 6. A means for measuring the thickness of fresh tea leaves on the feeding device, a means for controlling the moving speed of the feeding device, and a thickness of the fresh tea leaves. And a calculating means for calculating a stacking height of fresh tea leaves of the fresh tea leaf managing container from a moving speed of the feeding device. 7. The fresh tea leaf feeding device according to claim 4, wherein a level sensor is provided as a means for measuring the thickness of the fresh tea leaf on the feeding device. 8. A tea leaf contact plate fixed to a shaft and a means for measuring the inclination of the tea leaf contact plate are provided as means for measuring the thickness of fresh tea leaves on the feeding device.
Or the fresh tea leaf input device according to 6.