JPS63317043A - Tea-rolling method and apparatus therefor - Google Patents

Abstract

PURPOSE:To enable effective rolling processing of tea with an apparatus having simple construction, by using a rolling arm rotating in a rolling cylinder and performing plural rolling actions with the rolling arm in one cycle. CONSTITUTION:A half-processed tea leaves T are thrown into a rolling chamber 4 and a rolling arm A is rotated in the chamber to squeeze the tea leaves T between the rolling arm A and a rolling disk 3 to effect the exudation of water from the inside of the tea leaves T. The water exuded to the surface is successively evaporated and dried with hot air supplied by a heater 7 to dry the tea leaves. In the above process, the tea leaves are subjected to secondary rolling with a set of rolling arms A immediately after the primary rolling with a set of rolling arms A'. Accordingly, two rolling operations are applied to the tea leaves in one rotation of the rotary shaft 10 (i.e. per one cycle).

Description

[Detailed description of the invention] <<Object of the invention>><<Industrial application field>> The present invention relates to a tea rolling method and an apparatus,
In particular, this invention relates to a novel method in which the kneading action is performed multiple times per cycle.

<<Background of the Invention>> In the rough rolling process or medium rolling process in the tea manufacturing process, a rolling board is formed with bamboo ducts lined up on the inside of the rolling barrel, and the rolling hands are rotated along this, and the area between the rolling hands and the rolling board is formed. The processing method involves sandwiching the tea leaves between the two, applying pressure and rolling. In order to perform this processing effectively, the selection and determination of the working pressure and working time of the kneading spatula in the hand that directly performs the operation are important factors. This allows for careful kneading with each rotation of the hands, that is, each cycle, and as a result, the removal of moisture is promoted in the entire process, making it possible to process in a short time. For this reason, the above effect can be obtained by making the kneading spatula as long as possible, but this alone cannot be said to be perfect from the point of view of working pressure. ] This is because the kneading pressure of the kneading spatula is not constant due to the moment depending on its position, that is, the distance from the fulcrum, and it is impossible to apply pressure to the tea leaves on all working surfaces of the kneading spatula.

(Prior Art) In view of this background, there is an attempt at technical development in Utility Model Publication No. 59-25189, ``Kneader for Tea Making Machine.'' In this device, the kneading spatulas in a single kneading hand are conventionally combined into two stages in a so-called center-folding type, so that the applied pressure can be changed independently on the base side and the tip side.

However, in reality, the distal massaging spatula is rotatably attached to the tip of the proximal massaging spatula, so it is not completely independent, and the shape is complicated, so in practice This prior art remains in the realm of ideas and has not been put into practical use.

(Technical matters attempted to be developed) The present invention was developed in view of the above-mentioned background and problems of the prior art, and is a novel technology that enables effective kneading with a simpler structure. This is an attempt to develop a method and device for rolling tea.

(Structure of the Invention) <Means for Achieving the Object> The tea manufacturing method according to the present invention is a processing method in which a rolling hand rotates within a rolling barrel and rubs tea leaves between the rolling machine, and the tea rolling method according to the present invention comprises The method is characterized in that it is performed multiple times during the -cycle, thereby attempting to achieve the above object.

In addition, the tea rolling device of the present invention is a device in which a rolling hand attached to a rotating shaft rotates inside the rolling barrel to rub tea leaves between the rolling machine and the rolling machine, in which one group or multiple groups are arranged in the longitudinal direction of the rotating shaft. It is characterized in that a group of kneading hands is provided, and each group of kneading hands is provided with a plurality of sets of kneading hands whose working positions are substantially overlapped and whose phases in the rotation direction are different, This aims to achieve the above objective.

<Example> Examples of the present invention will be explained below in detail with reference to the drawings. The present invention will be described in detail. Reference numerals A and A' denote kneading hands, which are the main components of the present invention, and the one shown in FIG. 1 shows, by way of example, a case in which these kneading hands are used in a medium kneading machine 1. This medium kneading machine 1 performs processing within a kneading barrel 2 supported by a suitable machine frame F, and a kneading board 3 is formed by laying bamboo ducts on the inside of the cylindrical part near the bottom of the kneading barrel 2. At the same time, the inside of the kneading barrel 2 is used as a kneading chamber 4. An opening 6 with a hole 5i15 is provided at an appropriate location on the upper side thereof, and is used for inspection and as an inlet for tea leaves T, etc. Furthermore, a hot air supply port 8 for blowing hot air from a heater 7 is provided in the kneading chamber 4, and a wire mesh is stretched over the upper surface of the kneading drum 2 to form an exhaust port 9. Further, although detailed illustrations are omitted, a portion of the bottom of the kneading drum 2 is configured to be openable and closable, so that the product can be taken out. The medium kneading machine 1 includes a type in which the kneading member 11M2 is fixed and a type in which the kneader 11M2 rotates, but in this embodiment, the kneading barrel 2 is of the fixed type. The kneading hands A, A' rotate inside the kneading chamber 4 of the kneading drum 2, and various members including the kneading hands A and A' will be explained. A rotating shaft 10 is provided in the center of the massaging chamber 4 along its longitudinal direction, and is driven by an appropriate motor to rotate at a speed of about several 10 times per minute. And against this rotating shaft 10, several hands A are gathered together,
A' are installed in multiple groups, and specifically, the manner of attachment is such that several sets of conventional kneading hands A', about three in each set, are provided at regular intervals in the longitudinal direction, Then, at the same position in the axial direction where the set of conventional kneading hands A' are provided, the phase is slightly shifted in the rotational direction,
A set of kneading hands A is provided, which is a combination of about three kneading hands having the novel structure defined in the embodiment section of the apparatus of the present invention. For operation on the tea leaves T, primary rolling is performed using a set of conventional rolling hands A', and immediately thereafter, secondary rolling is performed using rolling hands A disclosed in this specification. Note that a combination of a conventional set of kneading hands A' at the same position in the longitudinal direction of this axis and a new set of kneading hands A mentioned in this example is defined as a "group" of kneading hands. , and forms several groups of kneading hands per medium kneading machine. In addition, each group is arranged so that the phase of its operation is shifted, and the distances dL and d2 between the respective rubbing hands A' and A and the rubbing plate 3 may be the same or different; can be set independently. Incidentally, the most commonly selected setting is to make the interval ctl that acts first larger than the interval d2 that acts later. Further, to describe in detail the rubbing operation of this new shape, in this one, a support rod 11 is attached to the rotating shaft IO via a bracket 12, and a rubbing spatula 13 is supported at the tip of the support rod 11. That is, the kneading spatula 13 is rotatably connected to the support rod 11 at its knife 14, and a spring 15 acts on one end of the kneading spatula 13, so that the kneading spatula 13 is always elastically biased toward the kneading plate 3 side. given the tendency to approach. The kneading spatula 13 is curved at the side connected to the support rod 11 to form a drawing guide part 13A, and at the same time, its free end side forms a kneading action part 13B. A flexible elastic body 16 having elasticity is provided in a range that substantially acts on the massaging portion 13B. The elastic effecting body 16 can have various configurations, and the one shown in FIGS. 6(a) and 6(b) is, for example, constructed so that a body member made of foamed synthetic resin is stretched. The elastic effecting body 16 shown in FIG. 3(a) has an insertion hole for the massaging spatula 13 formed in advance in the molded state, and is attached to the outside so as to completely cover the massaging spatula 13. Further, the elastic acting body shown in FIG. 6(b) is the rubbing acting part 13.
It is fixed to the B side. Moreover, the one shown in FIG. 6(C) is made of a single material such as synthetic rubber, for example, in a hollow shape, and the hollow portion 17 allows a substantially flexible elastic state to be obtained. In addition, Fig. 6 (d)
The one shown in FIG. 1 is constructed by filling the hollow portion 17 of the above embodiment with a core material 18 such as a foamed synthetic resin. That's all for Part 6'Il! In each of the embodiments shown in J(a) to (d), the elastic effecting body 16 may be fixed to the massaging spatula 13, for example, as shown in FIGS. 6(e) to (g). First, in the one shown in FIG. 6(e), the elastic acting body 16 is tied with a metal clamp band 20 near the base of the massaging spatula 13.

In addition, the one shown in Fig. 6 ([) is one in which the massaging spatula 13 and the elastic acting body 16 are fixed with bolts and nuts 2) in a penetrating state, and in this case, a part of the bolts and nuts 2) are also Since it protrudes toward the board 3 side, the fixed position 1 should be near the base of the massaging spatula 13. Furthermore, in the one shown in FIG. 6(g), a female screw plate 22 is integrally assembled inside the elastic effecting body 16,
Here, a bolt 23 is fixedly inserted through the back surface of the massaging spatula 13. Incidentally, reference numeral 25 is a stripping hand provided at a position where the rubbing hands of each of these groups are provided, and with a different phase.

The apparatus of the present invention has the specific structure as described above, operates as follows, and performs processing according to the method of the present invention. When the tea leaves T are picked up, the tea leaves T in the process of being processed are thrown in, and when the rolling hands A are rotated in the rolling chamber 4 according to the usual method, the tea leaves T are sandwiched between the rolling hands A and the rolling plate 3 and are rubbed. The moisture inside the tea leaves T is squeezed out, and the moisture squeezed out to the surface by the hot air supplied from the heater 7 is successively dried and reformed, resulting in a drying effect.
At this time, in the present invention, after the conventional type of kneading hands A' performs the primary kneading, immediately after that, the kneading hands A's group performs the secondary kneading, and the rotating shaft 10 is per rotation (−
(per cycle) second kneading is performed. By the way, as the processing progresses, it is expected that the bulk of the tea leaves T will decrease and the contact with the rolling hands will become incomplete, and in this case, hot air will simply be supplied without rolling the tea leaves T. When the kneading hands A for performing the secondary kneading are provided with an elastic acting body 16, in this embodiment, only the surface dries, resulting in a so-called over-dry state. As shown in FIG. 7(a), when the tea leaves T are sufficiently bulky at the beginning of processing, the elastic acting body 16 performs the kneading action even though it is greatly deformed, and as shown in FIG. When the amount decreases, the elastic action body 16 returns to its original shape and maintains a state in which it is in constant contact with the tea leaves T on its action surface, ensuring that the tea leaves T are in constant contact with the tea leaves T until the end of processing.
This is done by massaging the ingredients.

Although this embodiment is applicable to a so-called fixed-body type medium-rolling machine, the present invention can also be applied to a medium-rolling machine with a rotating body, or to a rough-rolling machine other than a medium-rolling machine. can. In addition, in this embodiment, the kneading process for performing secondary loading is performed using the kneading spatula 13.
Different kneading hands were used for both the first and second sets, but these were the same type of kneading, that is, the conventional type, or the elastic action body 1
There is no problem even if it is a combination of those with 6 extended.

(Effects of the Invention) Since the present invention has the above-described configuration, multiple degrees of kneading can be performed per rotation of the rotating shaft 1O, that is, one operating cycle, and more effective kneading can be achieved. Inclusion is made. Concomitantly, the removal of moisture inside the tea leaves T is also facilitated, making it possible to process them in a short time.

Also, if the kneading is done in one stage, some tea leaves may escape, but by doing this in multiple stages, this will not happen and you will be able to knead evenly.
After being rolled, the tea leaves T are further rubbed, allowing for careful rolling.

Furthermore, in the present invention, when performing the temporary kneading and the secondary kneading, the working pressure of each kneading spatula can be independently set to be different, making it possible to set the kneading pressure in detail.

Therefore, the rolling pressure applied to the tea leaves T can be set in accordance with the properties of the tea leaves T, which vary depending on the tea season and tree species, and more thorough processing can be achieved. Furthermore, since the present invention basically requires only two stages of conventional kneading, parts can be used interchangeably, and the structure can be constructed based on a simple structure. In addition, if it can be applied to a fixed-bore type medium-rubber, the amount of kneading per cycle is more than twice as much, so if it can be used for a fixed-bore type medium-rubber, which was inferior in kneading in terms of conventional machining time, a rotary-bore type can be used. It is possible to obtain a device with performance that is comparable to, or even surpasses, this.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a medium kneading machine that can be used for kneading hands, which is the main component of the present invention, Fig. 2 is a front view of the same as above, Fig. 3 is a right side view of the same as above, and Fig. 4 is an enlarged view of the inside of the kneading chamber. 5 is a sectional view of the same as above, FIG. 6 is a skeletal sectional view of various embodiments of the elastic effecting body, and FIG. 7 is a sectional view of the kneading hands showing the effect of deformation on the bulk of tea leaves. It is. 1; Medium kneading machine 2; Kneading barrel 3; Kneading board 4; Kneading chamber 5: Door 6; Opening a; Heater 8; Hot air supply port 9; Exhaust port 10; Rotating shaft 11; Scraping guide part 13B; Scraping action part 14i Knife engine 15; Spring 16; Elastic action body 17; Hollow part 18; Core material 20; Clamp band 2); Bolt/nut 22; Female thread plate 23; Port 25; A; Kneading hands A'; Kneading hands (conventional type) d Supervisor; Distance between kneading hands A' and kneading board 3 d2i Distance between kneading hands A and kneading board 3 F; Machine frame T; Tea leaves Fig. 3

Claims (3)

[Claims] (1) A tea manufacturing method in which a rolling hand rotates within a rolling barrel and rubs tea leaves between it and a rolling board, characterized in that the operation by the rolling hand is performed multiple times during one cycle. Method. (2) In a device in which a kneading hand attached to a rotating shaft rotates inside the kneading barrel to knead tea leaves between the kneading plate and the kneading plate, one or more groups of kneading hands are provided in the longitudinal direction of the rotating shaft, Furthermore, each kneading hand group is provided with a plurality of sets of kneading hands whose action positions substantially overlap each other and whose phases in the rotational direction are different. (3) The kneading spatula in all or some groups of kneading hands in the kneading hand group has a range that substantially performs the kneading action centered on the kneading action part, which decreases as processing progresses. The tea production according to claim 2, characterized in that an elastic effecting body that is elastically deformed within a certain thickness range is provided in order to set the substantial action time over a wide range depending on the bulk of the tea leaves. Massage hands.