JPS6219187Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tea milling machine that evaporates water while softening tea leaves, and particularly relates to a support device for a spatula provided therein.

As a conventional spatula support device, it was developed in 1973.
There was a technique disclosed in the -142599 publication.

As shown in Fig. 3, a rotating shaft b is arranged at the axial center of a semi-cylindrical kneading sole a, and an arm c extends from the rotating shaft b in the direction of the kneading sole a. is fixed, a spatula e is rotatably attached to the tip of the arm c via a fulcrum pin d, and the spatula e is held elastically at a predetermined angle along the kneading bottom a by a leaf spring f attached to the arm c. It was configured to do this.

In this device, the spatula e is designed to rotate at the tip of the arm f, so the force with which the spatula e presses the tea leaves toward the kneading bottom a is due to the fulcrum pin d.
There is a big difference between the front part A, which is close to , and the rear part B, which is far from the fulcrum pin d. For this reason, the rough rolling function of the tea leaves becomes uneven, resulting in disadvantages such as a decrease in quality and an increase in rough rolling time. Furthermore, in order to rotatably and elastically support the spatula at the tip of the arm, special parts such as a leaf spring f or a fulcrum pin d are required, which increases the number of parts and increases the cost.

The present invention aims to reduce the cost, improve quality, and shorten rough kneading time by locating the pivot point of the spatula in the direction of the rotation axis and by reducing the number of parts that support the spatula and making it a simple structure. purpose.

In order to achieve the above-mentioned purpose, the present invention, in particular,
The present invention is characterized in that the proximal end of the spatula is integrally fixed to the distal end of the arm, and the arm is made of an elastic material.

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

FIG. 1 is a cross-sectional view of the main body of a tea processing machine to which the present invention is applied.
Inside is a semi-cylindrical rolling sole 2 made of bamboo material,
A rotating shaft 3 made of a square column is installed at the axial center of the kneading sole 2.

A leaf picker 4 and a spatula 7 are attached to the rotating shaft 3 with a phase angle of approximately 180 degrees relative to each other.

That is, as shown in FIG.
An acute pyramid-shaped wiper rod 6 is erected and fixed at the upper end of the rod.

Further, the spatula 7 is integrally fixed to the lower end of a support device 8 extending downward from the rotating shaft 3, and its rear portion is arranged to extend along the kneading sole 2.

As shown in FIG. 2, the support device includes a plate-shaped bracket 9 extending leftward from the rotating shaft 3.
are fastened with bolts and nuts 11, and the left end of the bracket 9 is bent downward to form a holding piece 10, and an arm 12 made of a leaf spring is attached to the back surface (right side in the figure) of the holding piece 10. Bolt 13 at the top end
This is concluded by.

Then, the aforementioned spatula 7 is integrally fastened and fixed to the lower end of the arm 12 with bolts and nuts 14.

In addition, in FIG. 1, 15 is a rough kneading chamber, 16 is a hot air supply port that supplies heated air to the rough kneading chamber 15, and 1
7 is a material input port for inputting tea leaves into the coarse rolling chamber 15.

Next, the functions and effects of the above embodiment will be explained.

First, tea leaves are introduced through the material input port 17, and hot air is supplied into the rough kneading chamber 15 through the hot air supply port 16.

In this state, if the rotating shaft 3 is rotated clockwise in the figure, the arm 12, spatula 7, and leaf scraper 4 will rotate clockwise as shown by the arrow, and the tea leaves in the roughening chamber 15 will be rolled and rubbed by the spatula 7. 4 will be repeated alternately.

In this case, since the tea leaves have a lot of moisture and are bulky at the beginning of feeding, the load applied to the spatula 7 is large. Therefore, in order to respond to this load, the arm 12 is
As shown by the imaginary chain line in the figure, the spatula 7 is elastically deformed and curved to the right with respect to the rotating shaft 3, and as a result, the spatula 7 moves to the right and is separated from the kneading sole 2.

In this case, the arm 12 will be bent sequentially from the base end near the rotating shaft 3 to the distal end thereof, so the angle of inclination of the spatula 7 with respect to the kneading bottom 2 will be the same as before the arm 12 is bent. Moreover, the base A and the tip B of the spatula 7 are located at approximately the same radius with respect to the base of the arm 12. Therefore, the pressing force of both parts A and B on the tea leaves hardly changes, and the spatula 7 exhibits a substantially uniform rough kneading function over the entire area.

As the rough rolling progresses, the volume of the tea leaves becomes smaller and the resistance to the spatula 7 decreases. Accordingly, the arm 12 gradually returns to its original state, and the spatula 7 approaches the kneading bottom 2 to crush the tea leaves. Compressing and rough rolling enters the final stage.

As explained above, the present invention has a configuration in which the base end of the spatula is integrally fixed to the tip of the arm extending from the rotating shaft in the direction of the kneading bottom, and the arm is made of an elastic material. Because I did it,
The rotational fulcrum of the spatula 7 is located near a rotation axis remote from the spatula. For this reason, the amount of movement of the spatula toward and away from the bottom of the massage is approximately equal over the entire area of the spatula,
The force with which the katsu spatula presses the tea leaves is approximately the same throughout the rough rolling process.

Therefore, it is possible to improve the quality of the tea, improve the rough rolling efficiency, and shorten the time.

Moreover, since the arm supporting the spatula itself is elastically deformed to rotate the spatula, the number of parts is reduced and the constituent parts are simple, resulting in the effect that the spatula can be obtained at low cost.

[Brief description of the drawings]

Fig. 1 is a cross-sectional view of the main body of the tea processing machine to which the present invention is applied, Fig. 2 is an enlarged cross-sectional view of the main part of the spatula support device according to the present invention, and Fig. 3 is a cross-sectional view of the main part of the conventional spatula support device. It is. 1-Machine frame, 2-Kneading bottom, 3-Rotating shaft, 4-Leaf scraper, 7-Spatula, 8-Support device, 9-Bracket,
12-arm, 15-rough kneading chamber.

Claims (1)

[Scope of utility model registration request] A rotating shaft is provided at the axial center of the semi-cylindrical rolling sole, an arm is provided on the rotating shaft extending in the direction of the rolling sole, and a shaft is attached to the tip of the arm along the rolling sole and in the counter-rotational direction of the rotating shaft. A support device for a spatula in a tea making and roughing machine, which is provided with a spatula extending from above, and the base end of the spatula is integrally fixed to the tip of the arm, and the arm is made of an elastic material. .