JPS6235345Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a wind direction adjustment device for a tea processing machine that allows the blowing angle of hot air blown from the back of the tea leaf rolling and drying drum into the inside of the tea leaf rolling and drying drum to be freely changed.

Tea processing machines usually have a hot air outlet on the back of the tea leaf rolling and drying barrel, and the outlet is connected to a back duct that communicates with the hot air generator, and the hot air generated by the hot air generator is sent to the bottom of the back duct. The tea leaves are blown into the drying drum along the slope. The hot air blown into the tea leaf drying drum is generally blown toward the bottom of the tea leaf drying drum under the main shaft, so it is indicated by a and b in Figure 1.
At point f, e, d, hot air with large wind speed and volume flows in and then rises along the bottom of the tea leaf drying barrel.
Only a small amount of hot air flows in at the point.

Therefore, sufficient hot air is applied to the tea leaves that have been rolled by the kneading hands on the bottom of the drying drum and the water in the mesophyll has oozed out to the surface, but the tea leaves that have been scooped up and stirred by the leaf grinder are given sufficient hot air. Only a small amount of hot air blows in. As a result, the ventilation of the hot air to each leaf of the tea leaves is not very good, and the humid exhaust hot air tends to stay near point P at the rear of the tea leaf rolling and drying drum, and the hot air circulation is poor, making it impossible to keep the tea leaves steaming and bright green. Tend.

The purpose of this invention is to provide a wind direction adjustment device for a tea milling machine that can freely distribute and blow hot air supplied from a hot air generator according to the progress of drying of tea leaves. The purpose is to improve the quality of tea by making it possible to obtain coarsely rolled tea leaves that are well-ventilated with hot air and are rolled to a bright green color.

An embodiment of this invention will be described based on the drawings. 1 is a machine frame of a tea processing machine, 2 is a tea leaf rolling drying body installed on the machine frame 1 and has a rectangular upper part and a semi-cylindrical lower part, and 3 is a tea leaf rolling drying body. A main shaft is rotatably hung horizontally in the center of the tea leaf drying drum 2, numerals 4 and 5 are a number of kneading hands and leaf grinders attached radially to the main shaft 3, and 6 is a hole drilled along the entire length on the back of the tea leaf kneading drum. The relatively wide hot air outlet 7 is a hot air back duct connected to the upper back of the tea leaf drying drum 2, which rectifies the hot air supplied from the hot air generator (not shown in the drawing) and blows the hot air. This will lead you to exit 6. 11 is a vertical plate 15
Next, a slope 12 connects the back duct 7 to the hot air outlet 6, and 12 is a back plate that forms the boundary between the tea leaf drying drum 2 and the back duct 7 and reaches the upper edge 6' of the hot air outlet 6. Reference numeral 8 denotes a wind vane body integrally formed with a plurality of, for example, four wind vanes 8' parallel to the longitudinal direction of the hot air outlet 6, and a central axis integrally formed at the upper end of the wind vane body 8. 9 is fixed. The central shaft 9 is mounted on the upper edge 6' of the hot air outlet 6, one end of which is exposed outside the machine, and a lever 10 is attached to the one end.
is fixed, and the lever 10 is further connected via a rod 13 to an L-shaped adjustment handle 14. The L-shaped adjustment handle 14 is fixed to the side wall of the tea processing machine.
Since the position can be changed in 3 steps, by changing the position, the rotation angle of the central axis 9 and the wind direction blade 8 can be changed in 3 steps. The fixed angle of the wind vane 8' is such that when the wind vane 8 is horizontal, that is, in the position shown in FIGS. 2 and 3, the wind vane 8' is approximately vertical, and the length of the wind vane 8 is as follows. At the position , the other end of the wind vane 8 almost reaches the vertical plate 15 [from the inclined surface 11 to the back duct 7], and at the position [the inclination angles of the wind vane 8' and the inclined surface 11 are approximately equal] In this case, there should be some space between the other end of the wind deflector 8 and the inclined surface.

Since this device is constructed as described above, once the tea leaves have been put into the drying drum 2, the L-shaped adjustment handle 1 can be adjusted according to the transition state and properties of the tea leaf drying drum.
4, hot air is blown from the hot air outlet 6 into the tea leaf drying drum 2 at an appropriate angle and width.

That is, when the tea leaves have just been put in and there is a lot of moisture and it is necessary to quickly evaporate the surface moisture of the tea leaves, by moving the L-shaped adjustment handle 14 to the position and moving the air vane body 8 to the position, hot air can be Hot air supplied from a generator (not shown in the drawings) is first rectified in the back duct 7, and then passed through the back plate 12.
and the vertical plate 15 or the inclined surface 11, and the many wind vanes 8' and the inclined surface 1 of the wind vane body 8.
1, as shown by the arrows in FIG. a, b, cd, e, f in the drying cylinder 2 from the hot air outlet 6.
Expands towards a point. The tea leaves, which have a high moisture content, are agitated by the leaf sieve 5 and are exposed to the hot air that spreads sufficiently in this way, so the surface moisture of the tea leaves is rapidly removed, and the tea leaves remain bright green without becoming sticky. dripping

As the drying of the tea leaves progresses, the amount of hot air is reduced, and the L-shaped adjustment handle 14 is moved in order to bring the wind direction vane 8 to the position in order. At the position, a, b,
Hot air is supplied in a relatively concentrated manner near points c and d, and the hot air acts on the tea leaves being kneaded by the kneader 4 and on the tea leaves that fall after being stirred, causing the tea leaves to become stiff and dry. Drying progresses efficiently without any drying. Tea leaves tend to become dry as they dry, but since the hot air is concentrated around points ba and b at position , the hot air does not act much on the tea leaves being stirred, so the tea leaves do not become dry. In addition, the hot air advances to the place where the water inside the tea leaves is squeezed by the kneading hands 4 and floats to the surface, so that the tea leaves are efficiently dried without becoming stuffy.

This invention allows hot air to be blown into the drying drum 2 at any angle and width from the hot air outlet 6 on the back side by operating the L-shaped adjustment handle 14 outside the machine. The hot air environment can be maintained in the most suitable condition for the condition and type of tea leaves, improving the quality of the tea.

Since a large number of wind direction vanes 8' are installed parallel to the longitudinal direction of the hot air outlet 6, not only can the blowing angle and width of the hot air be adjusted, but also the rectification effect is high and the hot air is evenly distributed inside the drying drum 2. can be supplied.

Further, since the wind direction blade body 8 is formed by integrally providing a large number of wind direction blades 8', it is easy to adjust the angle of the wind direction blades 8' using the adjustment handle 14, and the adjustment is simple and durable.

In the embodiment, the L-shaped adjustment handle 14 is operated manually, but it can be operated by a motor or a pneumatic cylinder, and automatically controlled by a timer or the like according to changes in the condition of the tea leaves during the coarse rolling process. It can also be easily controlled by programs.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of a conventional roughing machine without the wind direction adjustment device according to this invention, and Figs. 2 and 3 are a partial vertical sectional view and a perspective view, respectively, of a roughing machine equipped with the wind direction adjustment device according to this invention. 4 and 5 are explanatory diagrams showing changes in the blowing angle and width of hot air by the wind direction adjusting device, respectively, and FIG. 6 is a detailed diagram of the wind direction adjusting device. 2...Tea leaf rolling and drying body, 6...Hot air outlet, 7...
Rear duct, 11... Inclined plate, 12... Rear plate,
8...Wind direction blade body, 8'...Wind direction blade, 9...Center axis, 14...(L type) adjustment handle.

Claims (1)

[Scope of utility model registration request] In a tea manufacturing and roughening machine, a hot air outlet is provided on the back side of the tea leaf rolling/drying barrel over approximately the entire length thereof, and hot air generated by a hot air generating means is blown out from the outlet, the length being approximately equal to the outlet. A wind direction blade body is formed by integrally forming a large number of wind direction blades parallel to each other, and has a central shaft at the top of both ends, and is axially mounted within the air outlet, and a wind direction blade body that is connected to the central axis and rotates the central axis. A wind direction adjustment device for a tea processing machine, which comprises an adjustable adjustment handle.