JPH0810288Y2 - Bottom plate for tea making machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a bottom plate of a tea making apparatus, for example, a rough rubbing machine.

[Conventional technology]

In tea manufacturing equipment, a large amount of tea sprout adheres to the equipment during processing of tea leaves, lowering the thermal efficiency and causing a failure, or the tea splinters adhering to the equipment peeling and mixing into the tea leaves, deteriorating the quality of the tea leaves. There is.

Therefore, when the amount of the brown spots increases, it becomes necessary to stop the operation of the apparatus and remove the brown spots, but this removing operation requires a great deal of labor and time. For this reason, a bamboo strip is attached to the rubbing bottom of the tea machine so that the removal operation can be easily carried out even if tea sprinkles adhere.

Further, it has been proposed to use a corrugated shaped product of a vinyl chloride polymer as a substitute for the bamboo material (JP-A-54).
-163900, JP-A-55-66).

Further, it has been proposed that the surface of a member in contact with tea leaves of a tea making coarse kneader is covered with a bag-like or tube-like covering layer made of a fluororesin (Japanese Utility Model Publication No. 2-90982).

[Problems to be solved by the invention] However, in the case of a bamboo bottom plate, it is necessary to replace the bottom plate because the bamboo contains water during washing work, etc., and the bamboo itself corrodes and peels off during tea making and mixes into tea leaves. Need to be done frequently. In addition, tea leaves and tea syrup enter between the strips, making it difficult to remove them and causing strips to separate from the substrate.

Also, when a molded product of vinyl chloride polymer is used,
Since the heat resistance is insufficient, the durability is inferior, and further, the vinyl chloride polymer softened during use adheres to the tea leaves, causing a problem of impairing the flavor of the tea leaves.

Further, when the member surface in contact with the tea leaves is covered with a bag-like or tubular covering layer from fluororesin, the covering layer is prone to be damaged during use, and the tea leaves are left between the member surface and the covering layer. However, there is a problem in that the shavings and tea stains enter and it becomes difficult to remove them, and the bottom plate causes the strip plate to separate from the substrate.

An object of the present invention is to solve such a conventional problem and to provide an inexpensive and durable bottom plate for a tea machine.

[Means for solving the problem]

As a result of intensive studies to achieve the above object, the present inventors have found that the problems of the prior art can be solved by using a sheet formed entirely of fluororesin, and completed the present invention.

That is, the present invention is a bottom plate for a tea making machine, characterized in that it is entirely made of a sheet made of fluororesin.

[Action]

In the present invention, since the whole sheet made of fluororesin is used, the adhesion of organic substances such as tea syrup is almost eliminated, the heat resistance is excellent, and the durability can be greatly improved. Does not hurt. Also, like when using a bag-shaped, tube-shaped coating layer,
The problem of breakage of the coating layer does not occur at all, the durability is remarkably improved, and the problem that tea leaves or tea leaves enter between the surface of the member (strip plate) and the coating layer can be avoided. Furthermore, by making the surface of the sheet uneven,
The effect of rubbing due to contact with agitating hands is further enhanced, corrosion and aging due to washing with water are prevented, wear resistance and corrosion resistance are improved, and replacement work is not required. Further, since it is composed of a single sheet, no gap is formed as in the case of using a strip plate, and there is no problem of stripping of the strip plate due to invasion of tea leaves or tea syrup.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a view showing an embodiment of a tea making coarse kneader which is one of the tea making devices equipped with the bottom plate of the present invention.

In FIG. 1, reference numeral 1 denotes a tea making coarse kneading machine, which has a horizontally long kneading and drying drum 2 fixed to a machine frame 1A. The kneading dryer 2 has a ceiling wire mesh 6 for discharging hot air upward at a rectangular upper portion, and a kneading bottom 3 having a semicircular cross section at a lower portion. Reference numeral 4 denotes a bottom plate spread on the inner surface of the kneading bottom 3 on the front side (left side in the drawing), and 5 denotes a main shaft rotatably mounted on the center of the kneading drying cylinder 2. Spindle 5
There are a large number of iron stirrers (18 to 36 / table) 8
And a massager 9 are provided. Reference numeral 10 is a take-out door provided in the front part of the kneading bottom 3, and 11 is a front door used for cleaning the inside of the kneading and drying cylinder 2. Reference numeral 12 denotes a hot-air generating furnace for generating hot air. The hot-air generating furnace 12 is provided behind the rubbing bottom 3, and has a combustion furnace 13, a bent flue 14 and a chimney 15. The hot air generating furnace 12 is located at the rear bottom of the rubbed bottom 3 by heat radiation from the combustion furnace 13 and the flue 14.
Radiant heat 16A is emitted into the kneading dryer 2 through 3a, and high-temperature hot air 16B is blown into the kneading dryer 2 from the air outlet 17 by heat exchange between the wind from the fan (not shown) and the flue 14. . 18
Is a conveyor for transporting tea leaves to the next step.

As shown in FIGS. 2 and 3, the bottom plate 4 has a synthetic resin sheet 19 laid on a substrate 20 and fixed by an arbitrary means such as a rivet 21.

The main shaft 5 is driven and rotated by a motor (not shown), and the agitator 8 and the massager 9 also rotate with the rotation.

When the tea leaves are roughly rubbed by the tea making coarse rubbing machine 1, the tea leaves put into the rubbing and drying drum 2 are radiated by the radiant heat 16A from the rear bottom 3a on the rear side of the rubbing bottom 3 and the hot air 16B blown out from the outlet 17 by the hot air 16B. While being heated, they are scooped up by the stirrer 8, fall and spread on the kneading bottom 3, and are repeatedly kneaded on the bottom plate 4 by the kneader 9, and are gradually dried without drying. The tea leaves that have been dried and have an appropriate roasted aroma are taken out from the take-out door 10 and conveyed to the next step by the conveyor 18.

As the fluororesin constituting the sheet 19 used in the present invention, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-perfluoroalkylvinylether copolymer, ethylene-tetrafluoroethylene copolymer, polytetrafluoroethylene Are exemplified. In particular, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer,
The ethylene-tetrafluoroethylene copolymer is preferably used because it has good moldability.

The strip used in the present invention is manufactured by molding the above synthetic resin by a known molding method such as injection molding or extrusion molding.

It is preferable to form irregularities on the surface of the synthetic resin sheet 19 in order to enhance the rubbing effect of tea leaves. For example, the waveform as shown in FIGS. 2 and 3 or the waveform as shown in FIG. It can be any shape such as a shape. In this case, it is appropriate that the groove width of the unevenness be about 10 to 50 mm.

Further, as the substrate 20, a metal plate, a synthetic resin plate, or the like can be used.

[Effect of device]

According to the bottom plate for a tea making machine of the present invention, it is possible to prevent the adhesion of tea drips inexpensively, to prevent a decrease in thermal efficiency or to cause a failure, and further, the adhered tea drips are separated and mixed into the tea leaves. It does not degrade the quality of tea leaves. Further, since it is excellent in durability, it is economical because it does not require replacement, and hygienic tea-making work can be continued without affecting the product due to corrosion of the bottom plate member. Further, even if the band plate is broken, only the damaged band plate needs to be replaced, and it is not necessary to replace the entire band plate, which is extremely economical.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a tea making apparatus equipped with a bottom plate of the present invention, FIG. 2 is a plan view showing an example of the bottom plate of the present invention, and FIG. 3 is a line AA in FIG. 4 is a sectional view showing another example of the bottom plate of the present invention. 4 ... Bottom plate 19 ... Synthetic resin sheet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-55-66 (JP, A) JP-A-54-163900 (JP, A) Actual Kaihei 2-90982 (JP, U) JP-B-63- 20 (JP, B2)

Claims (3)

[Scope of utility model registration request] 1. A bottom plate for a tea making machine, characterized in that it is entirely made of a sheet made of fluororesin. 2. The fluororesin is tetrafluoroethylene-
The bottom plate for a tea making machine according to claim 1, which is a hexafluoropropylene copolymer or an ethylene-tetrafluoroethylene copolymer. 3. The bottom plate for a tea making machine according to claim 1, wherein the sheet surface has irregularities.