JP2001145420A - Apparatus for taking out sample of raw leaf - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for taking out a sample of raw leaves, capable of surely and stably collecting a fixed amount of raw leaves regardless of the state of the raw leaves, having excellent general-purpose properties. SOLUTION: This apparatus is characterized in that the apparatus is equipped with an opening attached to the slope of a hopper into which the raw leaves are thrown, a square roll rotatably installed in the opening and a sample taking out conveyor arranged below the square roll, a fixed amount of the raw leaves is taken out by the rotation of the square roll and the raw leaves are stored through the sample taking out conveyor and an inclined conveyor in a sample taking out box. The opening part is provided, for example, movably with a plate body capable of adjusting the opened amount of the opening part and the opening amount at the top of the square roll is regulated by the plate body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fresh leaf sampler for sampling fresh leaves to be put into a fresh leaf feeding machine or a buried container installed in a tea factory for quality check.

[0002]

2. Description of the Related Art Conventionally, fresh leaves plucked from a tea plantation are 20
Every 30 kilograms, they are stored in a picking bag, or are transported to a tea factory by truck or the like while being plucked, weighed, checked for quality, and sent to a tea making process such as a steaming process. An apparatus for sampling fresh leaves at the time of this quality check is disclosed in, for example, JP-A-7-3924.
No. 4 discloses this.

In this sampling device, a hole is formed in a vertical wall below a charging chute of a temporary storage container for temporarily storing fresh leaves, and a flat plate-shaped damper having substantially the same shape as the hole is formed in the hole. A horizontal conveyor is arranged below the damper while being provided so as to be able to rotate by a predetermined angle between the non-sampling position. The fresh leaves collected by the damper are transported from the horizontal conveyor to the floor via the vertical conveyor, and the fresh leaves collected by the damper are stored in the storage box on the floor from the discharge chute of the vertical conveyor. .

[0004]

However, in this sampling device, a flat damper for collecting fresh leaves is formed in substantially the same shape as the hole in the vertical wall of the input chute, and the sampling position is different from the sampling position. Because of the structure that rotates by a predetermined angle with respect to the sampling position, the sampling of fresh leaves can be performed mechanically, but it is difficult to reliably and stably collect fresh leaves of various states to be thrown into the throwing chute by a predetermined amount. There was a problem.

[0005] That is, although the size and water content of the fresh leaves put into the chute of the temporary storage container vary depending on the picking time and the weather at the time of the picking, only the damper is set at a sampling position at a predetermined angle. In this case, variations in the amount of various leaves collected in different states are likely to occur.
Therefore, in order to suppress this variation, it is conceivable to adjust the inclination angle of the damper according to the state of the fresh leaves,
In this case, since the difference in the angle greatly affects the amount of collection, the adjusting operation itself is very troublesome, and depending on the setting of the inclination angle of the damper, the fresh leaves are clogged between the damper and the hole. In some cases, it is difficult to reliably and stably collect a predetermined amount of fresh leaves.

In addition, since the damper has a structure in which a damper is provided on a side wall of a charging chute of a temporary storage container buried and installed in a tea factory, for example, when a fresh leaf is loaded into a movable fresh leaf container, a fresh leaf washing dehydrator, or the like. There is also a problem that it is difficult to apply to a used leaf feeding machine and the like, and it is inferior in versatility.

[0007] The present invention has been made in view of such circumstances, and an object of the present invention is to ensure that a predetermined amount of fresh leaves can be reliably and stably collected regardless of the state of the fresh leaves. An object of the present invention is to provide a sampler for fresh leaves which is excellent in versatility. It is another object of the present invention to provide a sampler for fresh leaves which can more easily perform a work of collecting fresh leaves, in addition to the object of the present invention.
Further, the object of the invention described in claim 3 is that of claim 1 or 2
In addition to the objects of the invention described, to provide a sampler of fresh leaves that can easily adjust the amount of fresh leaves collected by a square roll,
An object of the invention described in claim 4 is to provide, in addition to the object of the invention described in claim 3, an apparatus for collecting a sample of fresh leaves that can more reliably collect a predetermined amount of fresh leaves regardless of the state of the fresh leaves.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, there is provided an opening provided on a slope of a hopper into which fresh leaves are put, and a rotatable opening in the opening. Provided with a square roll, and a sample taking conveyor arranged below the square roll, and a predetermined amount of fresh leaves to be put into the hopper by rotation of the square roll,
The fresh leaves are stored in a sample collecting box via a sample collecting conveyor.

[0009] With this configuration, the fresh leaves put into the hopper flow down along the inclined surface serving as the input surface, and are placed on the sample taking conveyor by the angular rolls in the openings formed in the inclined surface. Collected. At the time of collecting the fresh leaves, the fresh leaves placed on the upper surface of the square roll are rotated toward the upper side of the sample taking conveyor by the rotation of the square roll, and the fresh leaves are further lowered under the square roll by further rotation of the square roll. It is dropped and placed on the placed sample taking conveyor.

[0010] The fresh leaves are conveyed by a sample conveyor and stored in a sample box, and the fresh leaves are sampled (sampled), and the quality of the fresh leaves is checked based on the fresh leaves. Collection of fresh leaves put in this way,
Since the rotation is performed by the rotation of the square roll, by setting the positional relationship of the square roll with respect to the opening to a predetermined value, fresh leaves can be reliably and stably collected regardless of the state of the fresh leaves. It can be easily applied to a leaf feeding machine having a hopper, and the versatility is improved.

According to a second aspect of the present invention, the hopper is disposed in the pit, and the inclined conveyor having the upstream side located in the pit and the downstream side located on the floor is connected to the downstream side of the sample taking conveyor. By operating both conveyors, the collected fresh leaves are stored in a sample collecting box disposed below the downstream side of the inclined conveyor. With this configuration, the hopper is arranged in the pit, so that it is easy to put fresh leaves into the hopper, and the fresh leaves put into this hopper are collected on a sample taking conveyor by a square roll. This is conveyed to the floor by an inclined conveyor and stored in a sample collecting box. This makes it possible to mechanically perform the steps from collecting the fresh leaves to storing them, thereby facilitating the work of collecting the fresh leaves.

The invention according to claim 3 is characterized in that a plate body whose opening amount can be adjusted is movably disposed at the opening of the inclined surface. With this configuration, for example, only by sliding a plate body such as a slide plate at the opening portion, the opening amount of the opening is adjusted according to the state of the fresh leaves, so that the sampling amount according to the state of the fresh leaves Adjustment becomes easy.

Further, the invention according to claim 4 is characterized in that the plate is provided so that the opening amount of the upper part of the square roll can be adjusted. With such a configuration, for example, the amount of fresh leaves placed on the upper portion of the square roll can be easily adjusted with a plate body slidably provided in a vertical direction so that the opening amount can be adjusted on the upper portion of the square roll. As a result, a predetermined amount of fresh leaves is more reliably collected regardless of the state of the fresh leaves.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 7 show an embodiment in which the sample taking apparatus according to the present invention is attached to a leaf feeding machine, FIG. 1 is a side view thereof, FIG. 2 is a front view thereof, and FIG. FIG. 4 is an enlarged front view of the part, and FIG.
5 is a sectional view taken along the line CC of FIG. 3, FIG. 6 and FIG.
FIG.

In FIG. 1 and FIG. 2, the sample taking apparatus 1 is attached to a fresh leaf feeding machine 2. The leaf feeding machine 2
The machine frame 5 supported on the floor 4 via the support pillars 5 and the machine frame 5 is inclined so that the upstream side 2a is located in the pit 3 and the downstream side 2b is located above the floor surface 4. It has a conveyer 6 (see FIG. 2) which is provided and transports fresh leaves in the direction of arrow a. Further, a hopper 7 whose upper end surface is substantially flush with the floor surface 4 is provided in the pit 3 on the upstream side 2a of the leaf feeding machine 2.

The sample taking device 1 attached to the leaf feeding machine 2 comprises a square roll 8 disposed on the back side of the inclined surface 7a as the loading surface of the hopper 7 of the leaf feeding machine 2.
Sample taking conveyor 9 arranged below this square roll 8
And an inclined conveyor 10 connected to the sample conveyor 9, a sample box 11 disposed on the floor 4 below the downstream side 10 b of the inclined conveyor 10, and the like.

As shown in FIGS. 3 and 4, the angular roll 8 is formed in the shape of a square pipe having a square cross section with both ends in the longitudinal direction closed, and a rotating shaft 13 is disposed at the axial center position. Have been. One end of the rotating shaft 13 is rotatably supported by a bearing 14 composed of, for example, a pillow-type unit, and the other end of the rotating shaft 13 is connected to a rotating shaft 16 a of a gear motor 16 via a connector 15. I have. The angular roll 8 is located in an opening 17 formed on the inclined surface 7a of the hopper 7 and has a predetermined interval from an edge of the opening 17 and a corner 8a of the angular roll 8 is separated from the inclined surface 7a by a predetermined distance. It is supported so as to protrude outside the dimension.

The gear motor 16 is actuated by a control signal output from a control device (operation panel) (not shown) at a predetermined timing. With the operation of the gear motor 16, the angular roll 8 is moved into the opening 17 by an arrow shown in FIG. By rotating at a predetermined number of rotations in the direction C, as described later,
The fresh leaves T to be put into the popper 7 are sampled.

A slide plate 18 is disposed above the opening 17 on the inclined surface 7a of the hopper 7 on which the square roll 8 is disposed so as to be slidable in the vertical direction indicated by the arrow D. That is, a pair of slide rails 19 having a sectional shape shown in FIG.
Are fixed by screws 20 and both slide rails 1
A flat slide plate 18 having a bent portion 18a as a handle at the upper end is fitted between the rear surface 9 and the rear surface of the inclined surface 7a. A thumbscrew 21 is provided at the upper end of the slide rail 19, and the movement of the slide plate 18 is restricted by tightening the thumbscrew 21, and the thumbscrew 21 is loosened to hold the bent portion 18a by hand. By moving the slide plate 18 up and down, the slide plate 18 can move in the direction indicated by the arrow D.

Further, a graduation plate 22 (see FIG. 3) indicating the opening amount is fixed above the back surface of the inclined surface 7a on one slide rail 19 side by sticking or the like. The moving distance of 18 (that is, the opening amount above the square roll 8) is grasped visually.
In addition, both ends of the square roll 8 are covered with a roll cover 23 having a substantially arc-shaped cross section. Also, as shown in FIG.
A cover 26 is fixed downward at the lower end of the opening 17 of the inclined surface 7 a of the hopper 7 via a reinforcing plate 25, and a cover 27 reinforced by a reinforcing plate 28 is fixed above the opening 17. The upper end is fixed facing. The lower ends of the covers 26 and 27 are disposed on the sample taking conveyor 9 with a predetermined gap.

As shown in FIG. 2, the upstream side 9a of the sample taking conveyor 9 is located below the rear surface of the inclined surface 7a of the hopper 7 (ie, below the angular roll 8), and the downstream side 9b is fed with fresh leaves. It is disposed in the pit 3 so as to protrude outside the machine frame 5 of the machine 2 by a predetermined size and in a substantially horizontal state along the width direction of the hopper 7. An inclined conveyor 10 is connected to a downstream side 9 b of the sample taking conveyor 9. The inclined conveyor 10 is formed of, for example, a conveyer of a bunched or bucket type which is rotated by a motor (not shown). The upstream side 10 a provided with the hopper 12 is located in the pit 3, and the downstream side 10 b is located on the floor surface 4. Are arranged at an angle so as to be located above the first position.

The sample box 11 is provided on the inclined conveyor 10.
Is located on the floor 4 below the downstream side 10b of the
And a storage box 30 provided on the machine frame 29, for example, in a removable (or fixed) manner. The quality of the fresh leaves T stored in the storage box 30 of the sample box 11 is checked as a sample of the fresh leaves T put into the hopper 7.

Next, an example of the operation of the sample taking apparatus 1 will be described. First, the opening amount of the opening 17 formed on the inclined surface 7a of the hopper 7 is set to a predetermined position by moving the slide plate 18 using the scale plate 22. In this state, when the fresh leaves T carried in by the loading operator are sampled, for example, the gear motor 16 of the sample collecting device 1 is operated at a predetermined timing by operating the operation panel to rotate the square roll 8, and the fresh leaves are loaded. Leaves T on hopper 7 of machine 2
Input. While the fresh leaves T introduced into the hopper 7 flow down in the hopper 7, most of them fall into the opening 1 of the inclined surface 7 a.
7 is fed onto the conveyor 6 of the fresh leaf loading machine 2 and transported downstream as indicated by the arrow A, and is supplied to, for example, an automatic fresh leaf container (not shown).

On the other hand, part of the fresh leaves T flowing down while contacting the inclined surface 7a of the hopper 7, as shown in FIG.
The upper surface 8b of the square roll 8 from the opening 17 above the square roll 8
The fresh leaves T placed on the cover 2 are rotated as shown in FIG.
6 and 27, the raw leaves T placed on the upper side surface 8b at the time when the angular roll 8 rotates by a predetermined angle.
Separates from the angular roll 8 and falls downward as indicated by the arrow B.
The fresh leaves T fall downward while being guided by the covers 26 and 27, are placed on the sample taking conveyor 9, are conveyed by the sample taking conveyor 9 to the downstream side 9 b as indicated by the arrow E, and The hopper 12 is supplied.

The fresh leaves T supplied to the hopper 12 of the inclined conveyor 10 are conveyed to the downstream side 10b, which is an upper part, by a ridge or a bucket of the inclined conveyor 10 as shown by an arrow, and from the lowermost end of the inclined conveyor 10 to an arrow. Then, it falls down like a box and is stored in the storage box 30 of the sample collection box 11. By repeating the collection of the fresh leaves T by the rotation of the angular roll 8 a predetermined number of times (or for a predetermined time), for example, a predetermined amount of the fresh leaves T according to the amount of the lot of the fresh leaves T to be input is collected in the storage box 30. The fresh leaves T in the storage box 30 are inspected to check the quality of the fresh leaves T.

By the way, the fresh leaves T put into the hopper 7
Is changed, the predetermined amount of fresh leaves T is collected by moving the slide plate 18 to adjust the opening amount of the opening 17. That is, for example, when the shape of the fresh leaf T is large depending on the harvesting time, as shown in FIG.
If the opening amount (dimension w in the figure) of the opening 17 at the upper part of the square roll 8 is small, it becomes difficult to collect a large fresh leaf T, so that the slide plate 18 is moved upward and as shown in FIG. The opening amount (dimension w) above the square roll 8 is increased.

On the contrary, when the fresh leaves T are small, the slide plate 18 is moved downward to
The opening amount (dimension w) of is reduced to prevent unnecessary fresh leaves T from being collected. By adjusting the opening amount of the opening 17 above the square roll 8 by the movement of the slide plate 18, a predetermined amount of fresh leaves T is collected regardless of the state of the fresh leaves T. At this time, since the moving distance of the slide plate 18, that is, the size of the opening amount can be determined while visually observing the scale plate 22, the sampling amount can be easily adjusted according to the state of the fresh leaves T.

When it is not necessary to sample the fresh leaves T, the angular roll 8 is set at a predetermined position (for example, a position where one surface of the angular roll 8 is parallel to the inclined surface 7a) and the rotation is performed. At the same time, the operation of the sample conveyor 9 and the inclined conveyor 10 is stopped. In this state, most of the fresh leaves T are put into the fresh leaf input machine 2 and transported in the direction of arrow A, so that the sample leaves are not sampled by the sample picking device 1.

As described above, the sample taking apparatus 1 of the above embodiment is described.
According to this, an opening 17 is formed in the inclined surface 7 a of the hopper 7 of the fresh leaf feeding machine 2, the square roll 8 is rotatably disposed in the opening 17, and a cover 26 is provided below the square roll 8.
Since the sample taking conveyor 9 is arranged via 27 and the inclined conveyor 10 is connected to the sample taking conveyor 9, fresh leaves T to be put into the hopper 7 are collected by rotating the square roll 8 at a predetermined timing. Sample collection conveyor 9
The fresh leaves T can be reliably and stably collected by a predetermined amount as compared with a conventional damper that rotates by a predetermined angle.

Further, since the slide plate 18 which can be slid is provided in the opening 17 portion, the opening amount of the opening 17 above the square roll 8 can be adjusted by moving the slide plate 18, and the state of the fresh leaves T can be adjusted. A predetermined amount of fresh leaves T can be collected based on the opening amount according to the above, and a state in which the fresh leaves T are clogged in the opening 17 and can not be collected can be avoided, and more stable regardless of the state of the fresh leaves T Fresh leaf T
Sample can be taken.

Further, since the slide plate 18 for adjusting the opening amount of the opening 17 is provided above the opening 17 so as to be movable in the vertical direction, the amount of the fresh leaves T placed on the square roll 8 is determined by the opening amount. In addition to being able to adjust easily, the scale plate 22 for indicating the opening amount is provided, so that the user can adjust the size of the scale plate 22 while checking the scale plate 22 visually. Adjustment of the sampling amount can be easily performed.

Further, since the steps from the collection of the fresh leaves T by the square roll 8 to the storage in the sample collecting box 11 are performed mechanically (automatically), the collection at a predetermined timing does not involve any human element. The fresh leaves T can be randomly and fairly collected, and the quality of the fresh leaves T can be checked accurately. Further, since the hopper 7 is disposed in the pit 3, the operation of inserting the fresh leaves T can be performed easily and easily, so that the efficiency of the sample taking operation of the fresh leaves T can be improved from the input of the fresh leaves T.

FIGS. 8 and 9 show an embodiment in which the sample taking apparatus according to the present invention is attached to a buried type container. FIG. 8 is a side view and FIG. 9 is a front view. The same parts as those in the above embodiment will be described with the same reference numerals.
In the sample taking apparatus 1 of this embodiment, the opening 17 is formed in the inclined surface 7a of the hopper 7 of the buried type container 32, the square roll 8 is rotatably mounted, and the sample is taken by the sample taking conveyor 9 and the inclined conveyor 10. The fresh leaves T are stored in a sample collecting box 11 arranged on the floor 4.

In the case of the buried type container 32, since the width of the hopper 7 in the left-right direction is larger than that of the leaf feeding machine 2, a plurality of openings 17 (two places in the figure) are formed. Each of the square rolls 8 is rotatably arranged in the inside 17, and one sample taking conveyor 9 is arranged below each of the square rolls 8. Thereby, similarly to the above-described embodiment, the fresh leaves T to be put into the hopper 7 by the rotation of the square rolls 8 can be reliably collected, and the feeding position of the fresh leaves T to the hopper 7 is shifted in the width direction. Even
It can be collected with either one of the corner rolls 8, and a stable sample of the fresh leaves T can be taken.

In this embodiment, the gear motors 16 are provided in correspondence with the respective angular rolls 8. However, for example, if each of the angular rolls 8 is simultaneously rotated by one gear motor 16, the sampler 1 itself can be used. The configuration can be simplified. In addition, the sample taking conveyor 9 is not limited to one, and may be provided corresponding to each of the angular rolls 8, and the downstream side 9a may be joined and connected to the hopper 12 of the inclined conveyor 10.

In each of the above embodiments, the case where the inclined conveyor 10 is connected to the sample taking conveyor 9 of the sample taking apparatus 1 has been described. However, the present invention is not limited to this example. By tilting the take-up conveyor 9 itself or setting the installation position (height) of the hopper 7 at a predetermined position, the sample-taken conveyor 9 alone can be used, and the inclined conveyor 10 can be omitted. It is, of course, possible to use a vertical conveyor instead of.

Further, in each of the above embodiments, the case where the sample taking apparatus 1 is applied to the fresh leaf loading machine 1 or the buried type container 32 in which the hopper 7 is buried in the pit 3 has been described. The present invention can also be applied to a leaf feeding machine in which the hopper 7 is not buried in the pit 3 or a leaf feeding machine of various forms for feeding leaf into a movable leaf container. Furthermore, in the above-described embodiment, the position of the opening 17 formed in the hopper 7 (the mounting position of the square roll 8), the length of the square roll 8 itself, and its cross-sectional shape (for example, triangular, hexagonal,
Polygons such as octagons), the rotation mechanism of the square roll 8, the shape of the slide plate 18, its moving direction, etc. are also examples.
It goes without saying that various changes can be made without departing from the gist of each invention according to the present invention.

[0038]

As described above in detail, according to the first aspect of the present invention, the collection of fresh leaves put into the hopper is performed by the rotation of the square roll rotatably disposed in the opening of the inclined surface of the hopper. Since the rotation is performed, by setting the positional relationship of the angular roll with respect to the opening to a predetermined value, fresh leaves can be reliably and stably collected regardless of the state of the fresh leaves. It can be easily applied to a leaf feeding machine having a hopper and the like, and its versatility can be improved.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, since the hopper, the sample taking conveyor, and the upstream side of the inclined conveyor are arranged in the pit, fresh leaves can be transferred to the hopper. In addition to making it easy to put in, the fresh leaves put in the hopper can be sampled in a predetermined amount with a square roll and stored in a sample box on the floor by both conveyors, and the machine from collecting fresh leaves to storing And the operation of collecting fresh leaves can be performed more easily.

According to the third aspect of the present invention, in addition to the effect of the first or second aspect of the present invention, for example, by sliding a plate such as a slide plate, an opening for collecting fresh leaves is provided. Since the opening amount can be adjusted according to the state of the fresh leaves, the amount of the collected fresh leaves can be easily adjusted.

According to the fourth aspect of the present invention, in addition to the effects of the third aspect of the present invention, the upper portion of the square roll is provided on the upper portion of the square roll by, for example, a plate which is slidably movable in the vertical direction. Since the opening amount can be easily adjusted, there is an effect that a predetermined amount of fresh leaves corresponding to the opening amount can be more reliably collected regardless of the state of the fresh leaves.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment in which a sample collecting device according to the present invention is attached to a leaf feeding machine.

FIG. 2 is a front view of the same.

FIG. 3 is an enlarged front view of part A of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a sectional view taken along line CC of FIG. 3;

FIG. 6 is an explanatory diagram of the operation of the sampler;

FIG. 7 is an explanatory diagram of another operation.

FIG. 8 is a side view showing one embodiment in which the sample collecting device according to the present invention is attached to a buried container.

FIG. 9 is a front view of the same.

[Explanation of symbols]

 1... 本 Sample taking device 2 ・ ・ ・ 生 Fresh leaf loading machine 3 ピ ッ ト pit 7 ホ hopper 7a ・··· Slope surface 8 ··························································································· ······ Rotating shaft 16 ······ Gear motor 17 ········ Opening 18 ··················································································· ···· Scale plate 26, 27 ··· Cover 32 ···· Buried container T ····· Fresh leaf

Claims (4)

[Claims] 1. An opening provided on an inclined surface of a hopper into which fresh leaves are put, an angular roll rotatably disposed in the opening, and a sample taking conveyor disposed below the angular roll. A fresh leaf sampler, wherein a predetermined amount of fresh leaves fed into the hopper by rotation of the square roll is collected, and the fresh leaves are stored in a sample collecting box via a sample collecting conveyor. 2. The hopper is disposed in a pit, and an inclined conveyor having an upstream side located in the pit and a downstream side located on the floor is connected to the downstream side of the sample taking conveyor. The apparatus for collecting fresh leaf samples according to claim 1, wherein the collected fresh leaves are stored in the sample collecting box disposed below the downstream side of the inclined conveyor. 3. The apparatus for sampling fresh leaves according to claim 1, wherein a plate body whose opening amount can be adjusted is movably disposed at an opening portion of the inclined surface. 4. The apparatus for sampling fresh leaves according to claim 3, wherein said plate is provided so as to adjust an opening amount of an upper portion of the square roll.