JPS62134044A - Hot air feeder for roughly rubbing machine in tea manufacture - Google Patents

Abstract

PURPOSE:To raise roughly rubbing efficiency, to prevent fixation of tea leaves to a rubbing bottom plate and to mitigate cleaning operation of the rubbing bottom plate, by making hot air produced outside of a roughly rubbing chamber flow from both an approximately whole area of the rubbing bottom plate and part except the rubbing bottom plate into the roughly rubbing chamber. CONSTITUTION:A roughly rubbing chamber 10 having a semicylindrical rubbing bottom plate 15 at the bottom and a spatula 13 which presses manufactured tea contained in a rough rubbing chamber 10 to the rubbing bottom plate 15 while stirring are set. Then hot air produced outside of the roughly rubbing chamber 10 is made to flow from both of approximately the whole area of the rubbing bottom plate 15 and part except the rubbing bottom plate 15 to the roughly rubbing chamber 10. Consequently, the rubbing bottom plate 15 is superheated by the hot air and the hot air is well passed from the rubbing bottom plate through tea leaves having reached the part. Consequently, roughly rubbing efficiency can be raised, fixation of tea leaves to the rubbing bottom plate 15 is prevented and cleaning operation of the rubbing bottom plate can be mitigated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an apparatus for supplying hot air while softening tea leaf tissue.

(Conventional technology) As a conventional technique, there is a structure shown in FIG.

That is, a semi-cylindrical kneading bottom plate 2 provided at the bottom of the rough kneading chamber 1,
It is formed by an outer plate 2a made of a non-porous iron plate and an inner plate 2b made of bamboo laid on the inner surface thereof, and is placed inside the roughening chamber 1 via a rotating shaft 3 and an arm 4 to a roughening bottom plate 2. A spatula 5 that rotates to the right is provided, and in the diagram of the rough kneading chamber 1, the middle part of the right side wall,
In other words, there was a structure in which hot air (A) was forced downward (in the direction of rotation of the spatula) from the upper right edge of the kneading bottom plate 2.

Note that 6 is a leaf scraper fixed to the rotating shaft 3.

(Problems to be Solved by the Invention) In the conventional device described above, hot air (A) is exclusively supplied into the rough kneading chamber 1 from sources other than the kneading bottom plate 2, and the outer peripheral surface of the kneading bottom plate 2 is exposed to the outside air. Become.

It is difficult to supply hot air to the second portion of the leaf tea, and the rolling base plate 2 is easily cooled by the outside air, which has the disadvantage that the rough rolling function of the leaf tea is deteriorated.

Furthermore, the inner surface of the rolling sole plate 2, that is, the inner plate 2b, has an uneven shape to increase the rolling function, and this, combined with the occurrence of condensation due to the cooling of the rolling sole plate 2, tends to cause tea leaves to stick in the recesses. This part needs to be cleaned regularly, and this cleaning has the drawback of requiring a lot of effort.

The object of the present invention is to obtain a new hot air supply device for a tea processing machine that eliminates the above-mentioned drawbacks.

(Means for Solving the Problems) In order to achieve the above object, the present invention, in particular, allows hot air generated outside the roughing chamber to flow into the roughing chamber from both substantially the entire area of the rubbing bottom plate and from areas other than the rubbing bottom plate. It is configured to allow

(Function) Since the present invention has the above structure, the kneading bottom plate is superheated by the hot air flowing through this portion from the outside toward the rough kneading chamber.

In addition, the hot air flowing into the rough kneading chamber from the kneading bottom plate passes well between the tea leaves in the kneading bottom plate portion that are pressed by the spatula.

Furthermore, since the kneading bottom plate is heated by the hot air, moisture in the rough kneading chamber is less likely to condense in this area.

Further, the tea in the rolling part is lifted upward by the hot air circulation.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

First of all, in the drawings, FIG. 1 is an explanatory cross-sectional view of a tea processing machine showing an embodiment of the present invention, FIG. 2 is a cross-sectional view of the main part of the rolling bottom plate, and FIGS. 3 and 4 are other parts of the rolling bottom plate. FIG. 1 is a cross-sectional view and a perspective view of a main part showing an example.

In FIG. 1, 1o is a rough kneading chamber, 11 is a rotating shaft located at the center of the rough kneading chamber 10, and 12, 13, and 14 are arm spatulas and leaf spatters connected to the rotating shaft 10. The structure is similar to that shown in FIG.

15 is a semi-cylindrical kneading bottom plate provided at the lower part of the rough kneading chamber 10, and as shown in FIG. At the same time, the edge of each bottom cutout piece 15a on the opposite rotation side of the rotating shaft 11, that is, the left edge 15b, is aligned with the adjacent right edge 15c.
A lower hot air inlet 16 is formed in this portion, spaced apart from each other in the axial direction.

A lower hot air path 18 is formed by surrounding the bottom of the rubbing bottom plate 15 with a non-porous outer bottom plate 17, and hot air of high temperature, for example, 100° C. to 150° C., is forced from the outside to the upper right side of the hot air path 18. This causes hot air (a) to flow into the rough kneading chamber 10 from the lower hot air inlet 16 in the direction of rotation of the spatula 13.

Further, the outer side of the right side wall 10a of the rough kneading chamber 10 is surrounded by an outer plate 19 to form an upper hot air passage 20, and the rough kneading chamber 10
The upper hot air inlet opening opens into the upper hot air inlet 20, and hot air of 70°C to 120'C is supplied under pressure to the upper part of the upper hot air passage 20, thereby causing the upper hot air inlet 21 to flow downward into the rough kneading chamber 10. Direct the flow.

Note that the above-mentioned kneading bottom plate 15 may be constructed as shown in FIGS. 3 and 5.

That is, the corrugated sheet material 22 is arranged so that its recess 22a and protrusion 22b extend in the axial direction of the rotating shaft 11.

and a slope on the opposite rotation side of the rotation shaft 11 of each recess 22a;
In other words, in FIG. 3, the upward slope 22c on the right side of the recess 22a
As shown in FIG. 4, an elongated lower hot air inlet 23 extending in the direction in which the recess 22a extends is formed in the recess 22a.

(Effects of the Invention) As is clear from the above description, according to the present invention, the hot air generated outside the rough kneading chamber is configured to flow into the rough kneading chamber from both substantially the entire area of the kneading bottom plate and the area other than the kneading bottom plate. So, the bottom plate is overheated by the hot air JrTh 1 +, l-? M
ml-2<1lxkl The hot air from the J-281-+fflit board will pass through well.

Therefore, the present invention has effects such as being able to increase the rough kneading efficiency, and reducing the cleaning work of the kneading base plate by preventing tea leaves from being fixed to the kneading base plate.

[Brief explanation of drawings]

Fig. 1 is an explanatory sectional view of a tea milling machine showing an embodiment of the present invention, Fig. 2 is a sectional view of the main part of the grinding bottom plate, and Figs. 3 and 4 show other embodiments of the grinding bottom plate. A sectional view of a main part and a perspective view of a main part, and FIG. 5 is an explanatory sectional view corresponding to FIG. 1 showing a conventional example. 10: Rough kneading chamber, 10a: Right side wall, 11: Rotating shaft, 12:
Arm, 13: spatula, 14: leaf scraper, 15: kneading bottom plate,
15a: Bottom plate piece, 15b = right edge, 15c: left edge, 1
6: lower hot air inlet, 17: outer bottom plate, 18: lower hot air passage, 19: outer plate, 20: upper hot air passage, 21: upper hot air inlet. Application agent Hisatoshi Matsumoto (11 22t722a 22 ”2232'3

Claims (1)

[Scope of Claims] 1. A tea making and rough rolling machine having a rough rolling chamber having a semi-cylindrical rolling bottom plate at the bottom and a spatula for pressing the tea stored in the rough rolling chamber against the rolling bottom plate while stirring the tea. A hot air supply device for a tea milling machine, characterized in that hot air generated outdoors is allowed to flow into the roughening chamber from both substantially the entire area of the rolling bottom plate and from areas other than the rolling bottom plate. 2. Tea manufacturing according to claim 1, characterized in that the temperature of the hot air flowing into the roughening chamber from substantially the entire area of the rolling bottom plate is higher than the temperature of the hot air flowing into the roughening chamber from areas other than the rolling bottom plate. Hot air supply device for roughing machine.