CN112493332B

CN112493332B - Efficient production method of brick tea

Info

Publication number: CN112493332B
Application number: CN202011521957.2A
Authority: CN
Inventors: 周国鹏; 徐碧玉; 黄金花; 王志斌; 胡侃
Original assignee: Hubei University of Science and Technology
Current assignee: Xianning Yisiyuan Ecological Tea Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2022-06-24
Anticipated expiration: 2040-12-21
Also published as: CN112493332A

Abstract

The invention provides an efficient brick tea production method, and belongs to the technical field of brick tea production. And (3) circulation of the brick tea mould: dismantling the brick tea mould at the tail end of the brick tea production line, cleaning the brick tea mould, sending the cleaned brick tea mould to the head end of the brick tea production line, and intermittently pushing the brick tea mould at the head end of the brick tea production line to move; adding the tea into a brick tea mould running to a tea inner tea blanking station: the third guide plate covers the lower end opening of the inner tea frame, and weighed inner tea is poured into the inner tea frame from top to bottom; putting the intermediate tea into the brick tea mould running to the intermediate tea blanking station; putting intermediate tea into the brick tea mould running to the flour tea blanking station; steaming tea: the inner tea, the middle tea and the flour tea are synchronously steamed and boiled by steam in the process that each brick tea mould passes through the steam box; pressing tea: at the tea pressing station, tea leaves are extruded through a plurality of tea pressing stations to form tea bricks, and primary cooling is carried out in the forming process; and (3) discharging bricks: and demoulding the brick tea at the brick discharging station. The invention has the advantages of high efficiency and the like.

Description

Efficient production method of brick tea

Technical Field

The invention belongs to the technical field of brick tea production, and relates to an efficient brick tea production method.

Background

Green brick tea is a special industry in the Hubei Yanning area, has high reputation in the industry, and the existing brick tea production line generally comprises the following steps: interior tea, middle tea and flour tea are got to the branch of academic or vocational study respectively, make it be located three tea box respectively, in the continuous process evaporates tea district and boils the back, with the leading-in brick tea mould of three tealeaves in the three tea box according to the preface, form three layer construction, the drawing of patterns obtains the brick tea blank behind the compression moulding, present brick tea production line has following defect:

1. a plurality of tea boxes need to be operated on line and arranged in sequence so as to facilitate the filling of the inner tea, the middle tea and the flour tea, then the tea boxes are respectively cooked and then are led into a mould after being cooked, namely the tea boxes have a tea box circulating assembly line and a mould circulating assembly line, and the structure is complex.

2. The humidity of the tea leaves after being cooked is very high, and part of the tea leaves are adhered to the inner wall of the tea box in the process of being guided into the mould, so that the waste of the tea leaves is caused, and the cleaning procedure of the tea box also needs to be increased; moreover, the tea leaves are fragile after being steamed and easy to influence the integrity of the tea leaves in the process of being led into the mould.

3. In order to improve the cooking efficiency and realize continuous production, the lining tea, the flour tea and the intermediate tea are cooked in the same steam box, which easily causes the excessive cooking of the intermediate tea, actually, the cooking degree of the intermediate tea should be smaller than that of the lining tea and the flour tea to a certain extent, because the lining tea and the flour tea need to be embossed with patterns, the appearance of the finished brick tea needs to be smooth and clean, and thus the lining tea and the flour tea need to be cooked thoroughly, which is ideally: the time for cooking the inner tea and the flour tea is longer; in the prior art, the tea boxes are in the same steam box, and the steaming time of each tea box is the same in the continuous operation process, so that the intermediate tea is overcooked.

4. The existing brick tea mould needs manual mould removal, the structure is complex, and a large amount of time is wasted in mould disassembly and assembly.

Disclosure of Invention

The invention aims to provide an efficient brick tea production method aiming at the problems in the prior art, and the technical problem to be solved by the invention is how to simplify the production line and improve the efficiency.

The purpose of the invention can be realized by the following technical scheme: the efficient brick tea production method is characterized in that a brick tea production line comprises two upright posts, a plurality of brick tea molds, a first guide plate and a second guide plate, wherein the first guide plate is horizontally arranged, the second guide plate is parallel to the first guide plate, two ends of the first guide plate and two ends of the second guide plate are respectively fixed on the two upright posts, and the first guide plate is positioned above the second guide plate; a third guide plate fixed on the two upright posts is arranged below the second guide plate, and the third guide plate is parallel to the second guide plate;

each brick tea mould is connected on the first guide plate and the second guide plate in a sliding manner to form a brick tea production line, and an inner tea blanking station, an intermediate tea blanking station, a surface tea blanking station, a tea steaming station, a plurality of tea pressing stations and a brick discharging station are sequentially arranged on the brick tea production line;

the brick tea mould comprises an inner tea frame, a middle tea frame and a surface tea frame, wherein the middle tea frame is detachably connected between the inner tea frame and the surface tea frame through a plurality of connecting pieces, a first guide groove matched with a first guide plate is formed between the lower end of the surface tea frame and the upper end of the middle tea frame, and a second guide groove matched with a second guide plate is formed between the upper end of the inner tea frame and the lower end of the middle tea frame;

the first guide plate is provided with a first avoidance port at each of the inner tea blanking station, the middle tea blanking station and each tea pressing station;

the second guide plate is provided with a second avoidance port at each of the inner tea blanking station, the tea pressing stations and the brick discharging station;

the third guide plate is provided with a third avoidance port at each tea pressing station and each brick discharging station;

the first guide plate, the second guide plate and the third guide plate are all breathable grid plates;

a steaming box is arranged at the tea steaming station, a tea steaming cavity is formed in the middle of the steaming box, and two ends of the steaming box are respectively provided with a feed channel allowing a brick tea mould to pass through; steam is introduced into the tea steaming cavity;

an upper pressing plate and a lower pressing plate are arranged at the tea pressing station and are respectively driven by a first air cylinder and a second air cylinder;

the production method comprises the following steps:

A. circulation of the tea brick mold on the tea brick production line: dismantling the brick tea mould at the tail end of the brick tea assembly line, cleaning the brick tea mould, sending the brick tea mould to the head end of the brick tea assembly line, enabling the first guide plate to penetrate through the first guide groove, enabling the second guide plate to penetrate through the second guide groove respectively, and intermittently pushing the brick tea mould at the head end of the brick tea assembly line to move so as to enable each brick tea mould on the brick tea assembly line to move synchronously;

B. adding the tea into a tea brick mold running to a tea inner feeding station: the third guide plate covers the lower end opening of the inner tea frame, and weighed inner tea is poured into the inner tea frame from top to bottom;

C. putting the intermediate tea into a brick tea mould running to an intermediate tea blanking station: a third guide plate covers the lower end opening of the inner tea frame, a second guide plate covers the lower end opening of the middle tea frame, and weighed middle tea is poured into the middle tea frame from top to bottom;

D. putting intermediate tea into a brick tea mould running to a flour tea blanking station: the third guide plate covers the lower end opening of the inner tea frame, the second guide plate covers the lower end opening of the middle tea frame, the first guide plate covers the lower end opening of the face tea frame, and the weighed face tea is poured into the face tea frame from top to bottom;

E. tea steaming: the inner tea, the middle tea and the flour tea are synchronously steamed and boiled by steam in the process that each brick tea mould passes through the steam box;

F. pressing tea: the first air cylinder and the second air cylinder synchronously act at the tea pressing station to drive the upper pressing plate and the lower pressing plate to extrude tea in the middle tea frame in the direction of the middle tea frame, tea is extruded through the tea pressing stations to form tea bricks, and preliminary cooling is carried out in the forming process;

G. and (3) discharging bricks: demoulding the brick tea at a brick discharging station;

H. cleaning: and (4) dismantling the brick tea mould at the tail end of the brick tea assembly line, and after cleaning, installing the brick tea mould to the head end of the brick tea assembly line.

Furthermore, the four side walls of the middle tea frame are respectively provided with a brick outlet assembly, the brick outlet assembly comprises a mounting hole formed in the side wall of the middle tea frame, a brick outlet roller is rotatably connected in the mounting hole, the peripheral surface of the brick outlet roller is provided with a straight adaptive surface, a rectangular notch is formed in the inner side surface of the middle tea frame by the mounting hole, the adaptive surface can block the notch when being aligned with the inner side surface of the middle tea frame, a rotating shaft is fixedly arranged in the brick outlet roller, and two ends of the rotating shaft are respectively and fixedly connected with a bevel gear; four pivots form a quadrangle structure on middle tea frame, and two bevel gears that are located quadrangle structure edges and corners department mesh with each other to make each play brick roller can synchronous revolution.

Furthermore, the brick discharging roller is made of silica gel.

Furthermore, each side wall of the middle tea frame is a vertical surface, and an inclination angle of 3-5 degrees is formed between the side wall of the inner tea frame and the side wall of the middle tea frame.

Furthermore, a third air cylinder is arranged at the brick discharging station, a brick discharging frame is fixedly arranged on a push rod of the third air cylinder, the brick discharging frame comprises a supporting plate and driving plates symmetrically arranged at two ends of the supporting plate, and an inclination angle of 95-100 degrees is formed between the driving plates and the supporting plate; when the third cylinder pushes the brick discharging frame to move upwards, the two driving plates can respectively abut against the two brick discharging rollers which are parallel to each other, and the brick discharging rollers can synchronously rotate.

Furthermore, two steam conveying pipes which are respectively positioned at the top and the bottom of the steam box are arranged in the steam box, and a plurality of steam nozzles which face the middle of the steam box are arranged on the steam conveying pipes.

Silica gel material's play brick roller has certain elasticity, at the pressure tea in-process, because the lateral wall of effort and middle tea frame is parallel, the extrusion force that makes play brick roller receive is less, the adaptation face can form smooth die cavity with the lateral wall parallel and level of middle tea frame, at a brick roller rotation in-process, because it has certain elasticity, can extrude the brick tea from top to bottom under the not impaired condition of protection brick tea lateral wall, can lie in with the reason that the brick tea was extruded: because the adaptation face is straight with the lateral wall of middle tea frame under initial condition, can stretch out within the middle tea frame lateral wall after the brick roller rotation of going out, make the brick roller tightly compress tightly with the brick tea lateral wall, make brick tea remove in middle tea frame at the rotatory in-process of brick roller that goes out, and then make brick tea break away from middle tea frame.

Because the side wall of the inner tea frame is wedge-shaped, the tea brick is easy to separate.

When the brick tea mold is taken out from the tail end of the brick tea production line and then is installed to the head end of the brick tea production line, the adaptation surfaces of the brick tea discharging rollers are required to be ensured to be straight with the side wall of the middle tea frame.

Through the guide rail that first deflector, second deflector and third deflector are constituteed, can make each brick tea mould remove on line, the removal mode is: equally dividing the space between the adjacent stations into multiple sections, moving the brick tea mould to a specified position once by a small section, stopping moving the brick tea mould to the specified position, stopping moving the brick tea mould for a period of time, moving the brick tea mould for the same distance again, and repeating the steps. The working procedures of blanking, tea pressing, brick discharging and the like are all carried out when the brick tea mould is stopped.

When the tea brick mould moves the in-process between a plurality of pressure tea workstations, the lower extreme opening of tea frame in the middle of the second deflector can the shutoff avoids tealeaves to fall out, when the second of this position is dodged mouthful and middle tea frame export and is just right, the tea brick mould halts to transport, and then continues to press tea.

Interior tea unloading station, middle tea unloading station and surface tea unloading station all include a hopper and one connect the hopper, and the hopper is used for throwing into the tealeaves after weighing corresponding brick tea mould down, and connect the hopper then can be with the tealeaves bits splendid attire that probably falls out.

This scheme has following advantage:

1. because the inner tea, the middle tea and the flour tea are all in the brick tea mould on the whole production line, the container does not need to be replaced for the tea, the working procedures are reduced, the derivation and loading times of the tea are reduced, and the damage of the tea in the process of replacing the container is further reduced.

2. Because the tea brick mould is after packing in interior tea, middle tea and surface tea, receive the isolation of first deflector, second deflector and third deflector, in the tea steaming process, three kinds of tealeaves distribute and have been cooked in three spaces respectively, moreover, the steam at steam ager top spouts the surface tea of tea brick mould from top to bottom, the steam of steam ager bottom spouts the interior tea of tea brick mould from top to bottom, and middle tea does not receive directly the boiling of steam, receive the blocking of interior tea and surface tea, steam intensity, temperature and humidity that middle tea was cooked have all weakened, can ensure in the same boiling time, interior tea and surface tea have bigger maturity and humidity than middle tea, overcome the shortcoming that the synchronous steaming of current tea brick production process leads to middle tea overcooked.

3. This scheme can realize going out the brick on line, and the tea brick that takes out arranges in on the layer board, and an accessible linear electric motor can carry out processes such as deburring, impression, packing after cooling down once more on with the tea brick propelling movement on the layer board to a conveyer belt.

4. Except that each brick tea mould is guided through first deflector, second deflector and third deflector, establish respectively on first deflector, second deflector and third deflector that the first of each process of adaptation dodges the mouth, the second dodges the mouth and the third dodges the mouth, make the brick tea mould can carry out the pan feeding one by one of three kinds of tealeaves, press tea and go out the brick.

Drawings

Fig. 1 is a schematic structural view of the brick tea production line.

Figure 2 is an exploded view of a brick tea mold.

Figure 3 is a cross-sectional view of a brick tea mold.

Fig. 4 is a schematic view of the transmission connection structure of each brick discharging roller.

Fig. 5 is a schematic view of the connection structure of the brick tea mould on the production line.

Figure 6 is a cross-sectional view of a tile ejection configuration.

Fig. 7 is an enlarged view of a portion a in fig. 3.

In the figure, 1, a column; 2. a brick tea mould; 21. an inner tea frame; 22. a middle tea frame; 221. a brick discharging roller; 222. an adaptation surface; 223. a rotating shaft; 224. a bevel gear; 23. a seasoned millet mush frame; 24. a first guide groove; 25. a second guide groove; 3. a first guide plate; 31. a first dodging port; 4. a second guide plate; 41. a second avoidance port; 5. a third guide plate; 51. a third dodging port; 61. a tea feeding station; 62. an intermediate tea blanking station; 63. a seasoned millet mush blanking station; 64. a tea steaming station; 65. a tea pressing station; 66. a brick discharging station; 7. steaming the box; 81. a support plate; 82. a board is driven.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 7, the brick tea making machine comprises two upright posts 1, a plurality of brick tea moulds 2, a first guide plate 3 horizontally arranged and a second guide plate 4 parallel to the first guide plate 3, wherein two ends of the first guide plate 3 and the second guide plate 4 are respectively fixed on the two upright posts 1, and the first guide plate 3 is positioned above the second guide plate 4; a third guide plate 5 fixed on the two upright posts 1 is arranged below the second guide plate 4, and the third guide plate 5 is parallel to the second guide plate 4;

each brick tea mould 2 is connected on the first guide plate 3 and the second guide plate 4 in a sliding way to form a brick tea production line, and an inner tea blanking station 61, an intermediate tea blanking station 62, a surface tea blanking station 63, a tea steaming station 64, a plurality of tea pressing stations 65 and a brick discharging station 66 are sequentially arranged on the brick tea production line;

the brick tea mould 2 comprises an inner tea frame 21, a middle tea frame 22 and a surface tea frame 23, wherein the middle tea frame 22 is detachably connected between the inner tea frame 21 and the surface tea frame 23 through a plurality of connecting pieces, a first guide groove 24 matched with the first guide plate 3 is formed between the lower end of the surface tea frame 23 and the upper end of the middle tea frame 22, and a second guide groove 25 matched with the second guide plate 4 is formed between the upper end of the inner tea frame 21 and the lower end of the middle tea frame 22;

the first guide plate 3 is provided with a first avoidance port 31 at each of the inner tea blanking station 61, the middle tea blanking station 62 and each tea pressing station 65;

the second guide plate 4 is provided with a second avoidance port 41 at the inner tea blanking station 61, each tea pressing station 65 and the brick discharging station 66;

the third guide plate 5 is provided with a third avoidance port at each tea pressing station 65 and brick outlet station 66;

the first guide plate 3, the second guide plate 4 and the third guide plate 5 are all breathable grid plates;

a steaming box 7 is arranged at the tea steaming station 64, a tea steaming cavity is arranged in the middle of the steaming box 7, and two ends of the steaming box 7 are respectively provided with a feed channel allowing the brick tea mould 2 to pass through; introducing steam into the tea steaming cavity;

an upper pressing plate and a lower pressing plate are arranged at the tea pressing station 65 and are respectively driven by a first cylinder and a second cylinder.

The production method comprises the following steps:

circulation of the tea brick mold 2 on the tea brick production line: dismantling the brick tea mould 2 at the tail end of the brick tea assembly line, cleaning the brick tea mould, sending the brick tea mould to the head end of the brick tea assembly line, enabling the first guide plate 3 to penetrate through the first guide groove 24 and the second guide plate 4 to penetrate through the second guide groove 25 respectively, and intermittently pushing the brick tea mould 2 at the head end of the brick tea assembly line to move so as to enable each brick tea mould 2 on the brick tea assembly line to move synchronously;

the tea brick mould 2 running to the tea brick blanking station 61 is filled with tea: the third guide plate 5 covers the lower end opening of the inner tea frame 21, and weighed inner tea is poured into the inner tea frame 21 from top to bottom;

the intermediate tea is put into the brick tea mould 2 running to the intermediate tea blanking station 62: the third guide plate 5 covers the lower end opening of the inner tea frame 21, the second guide plate 4 covers the lower end opening of the middle tea frame 22, and the weighed middle tea is poured into the middle tea frame 22 from top to bottom;

the intermediate tea is put into the brick tea mould 2 which runs to the flour tea blanking station 63: the third guide plate 5 covers the lower end opening of the inner tea frame 21, the second guide plate 4 covers the lower end opening of the middle tea frame 22, the first guide plate 3 covers the lower end opening of the flour tea frame 23, and the weighed flour tea is poured into the flour tea frame 23 from top to bottom;

tea steaming: when the tea brick moulds 2 pass through the steam box 7, the inner tea, the middle tea and the flour tea are synchronously steamed and boiled by steam;

pressing tea: at the tea pressing station 65, the first air cylinder and the second air cylinder synchronously act to drive the upper pressing plate and the lower pressing plate to extrude the tea in the middle tea frame 22 towards the middle tea frame 22, and the tea is extruded by the tea pressing stations 65 to form tea bricks, and is preliminarily cooled in the forming process;

and (3) discharging bricks: de-molding the brick tea at a brick ejection station 66;

cleaning: and (3) dismantling the brick tea mould 2 at the tail end of the brick tea production line, and after cleaning, installing the brick tea mould to the head end of the brick tea production line.

The brick discharging components are respectively arranged on four side walls of the middle tea frame 22 and comprise mounting holes formed in the side walls of the middle tea frame 22, a brick discharging roller 221 is rotatably connected in each mounting hole, a straight adaptive surface 222 is arranged on the peripheral surface of each brick discharging roller 221, a rectangular notch is formed in the inner side surface of the middle tea frame 22 by each mounting hole, the notches can be blocked when the adaptive surfaces are flush with the inner side surface of the middle tea frame 22, a rotating shaft 223 is fixedly arranged in each brick discharging roller 221, and two ends of each rotating shaft 223 are respectively and fixedly connected with a bevel gear 224; the four rotating shafts 223 form a quadrangle structure on the middle tea frame 22, and two bevel gears 224 at the corners of the quadrangle structure are engaged with each other to enable the brick discharging rollers 221 to rotate synchronously.

The brick discharging roller 221 is made of silica gel.

Each side wall of the middle tea frame 22 is a vertical surface, and an inclination angle of 3-5 degrees is formed between the side wall of the inner tea frame 21 and the side wall of the middle tea frame 22.

A third air cylinder is arranged at the brick discharging station 66, a brick discharging frame is fixedly arranged on a push rod of the third air cylinder, the brick discharging frame comprises a supporting plate 81 and driving plates 82 symmetrically arranged at two ends of the supporting plate 81, and an inclination angle of 95-100 degrees is formed between the driving plates 82 and the supporting plate 81; when the third cylinder pushes the brick discharging frame to move upwards, the two driving plates 82 can respectively abut against the two brick discharging rollers 221 which are parallel to each other, and the brick discharging rollers 221 can synchronously rotate.

Two steam conveying pipes which are respectively positioned at the top and the bottom of the steam box 7 are arranged in the steam box 7, and a plurality of steam nozzles facing the middle part of the steam box 7 are arranged on the steam conveying pipes.

Silica gel material's play brick roller 221 has certain elasticity, at the pressure tea in-process, because the effort is parallel with the lateral wall of middle tea frame 22, the extrusion force that makes play brick roller 221 receive is less, adaptation face 222 can form smooth die cavity with the lateral wall parallel and level of middle tea frame 22, at play brick roller 221 rotation in-process, because it has certain elasticity, can extrude the brick tea under the not impaired condition of protection brick tea lateral wall from top to bottom, can lie in with the reason that the brick tea was extruded: because the adapting surface 222 is straight with the side wall of the middle tea frame 22 in the initial state, the brick discharging roller 221 can extend out of the side wall of the middle tea frame 22 after rotating, so that the brick discharging roller 221 can tightly press against the side wall of the brick tea, the brick tea can move in the middle tea frame 22 in the rotating process of the brick discharging roller 221, and the brick tea can be separated from the middle tea frame 22.

Because the side wall of the inner tea frame 21 is wedge-shaped, the tea brick is easy to separate.

When the brick tea mold 2 is taken out from the end of the brick tea production line and then is installed at the head end of the brick tea production line, the adapting surface 222 of each brick discharging roller 221 needs to be ensured to be straight with the side wall of the middle tea frame 22.

Through the guide rail that first deflector 3, second deflector 4 and third deflector 5 are constituteed, can make each brick tea mould 2 on-line movement, the mobile mode is: equally dividing the space between the adjacent stations into a plurality of sections, moving the brick tea mould 2 once to a small section, stopping after moving to a specified position, moving the same distance again after stopping for a period of time, and repeating the steps. The working procedures of blanking, tea pressing, brick discharging and the like are all carried out when the brick tea mould 2 is stopped.

When the tea brick mold 2 moves between a plurality of tea pressing stations 65, the lower end opening of the middle tea frame 22 can be plugged by the second guide plate 4, tea leaves are prevented from falling out, and when the second avoiding opening 41 at the position is aligned with the outlet of the middle tea frame 22, the tea brick mold 2 stops running, and then tea pressing is continued.

Interior tea unloading station 61, middle tea unloading station 62 and surface tea unloading station 63 all include a hopper and connect the hopper, and lower hopper is used for throwing into the tealeaves after weighing corresponding brick tea mould 2 in, and connects the hopper then can be with the tealeaves bits splendid attire that probably falls out.

Because interior tea, middle tea and surface tea all are in brick tea mould 2 on whole production line, need not change the container to tealeaves, reduced the process, reduced the derivation and the loading number of times of tealeaves, and then reduced tealeaves and changed the impaired of container in-process.

Because the brick tea mould 2 is isolated by the first guide plate 3, the second guide plate 4 and the third guide plate 5 after the tea brick mould 2 is filled with the tea, the middle tea and the flour tea, in the tea steaming process, the three kinds of tea are distributed in three spaces to be respectively steamed, moreover, steam at the top of the steam box 7 is sprayed to the flour tea of the brick tea mould 2 from top to bottom, the steam at the bottom of the steam box 7 is sprayed to the tea brick mould 2 from top to bottom, the middle tea is steamed without direct steam, and after the blockage of the tea brick mould and the flour tea, the steam strength, the temperature and the humidity for steaming the middle tea are weakened, so that the tea brick mould can ensure that the tea brick and the flour tea have higher maturity and humidity compared with the middle tea in the same steaming time, and overcome the defect that the middle tea is overcooked due to synchronous tea steaming in the existing brick tea production process.

This scheme can realize going out the brick on line, and the tea brick that takes out arranges in layer board 81 on, and an accessible linear electric motor can carry out processes such as deburring, impression, packing after cooling down once more with the tea brick propelling movement on the layer board 81 to a conveyer belt.

Except that each brick tea mould 2 is guided through first deflector 3, second deflector 4 and third deflector 5, establish respectively on first deflector 3, second deflector 4 and third deflector 5 that the first mouth 31 of dodging, the second of dodging of each process of adaptation dodge mouth 41 and the third and dodge the mouth, make brick tea mould 2 can carry out the pan feeding one by one of three kinds of tealeaves, press tea and go out the brick.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The efficient brick tea production method is characterized in that a brick tea production line comprises two upright posts (1), a plurality of brick tea molds (2), a first guide plate (3) horizontally arranged and a second guide plate (4) parallel to the first guide plate (3), wherein two ends of the first guide plate (3) and the second guide plate (4) are respectively fixed on the two upright posts (1), and the first guide plate (3) is positioned above the second guide plate (4); a third guide plate (5) fixed on the two upright posts (1) is arranged below the second guide plate (4), and the third guide plate (5) is parallel to the second guide plate (4);

each brick tea mould (2) is connected with the first guide plate (3) and the second guide plate (4) in a sliding manner to form a brick tea production line, and a lining tea blanking station (61), a middle tea blanking station (62), a surface tea blanking station (63), a tea steaming station (64), a plurality of tea pressing stations (65) and a brick discharging station (66) are sequentially arranged on the brick tea production line;

the brick tea mould (2) comprises an inner tea frame (21), a middle tea frame (22) and a surface tea frame (23), wherein the middle tea frame (22) is detachably connected between the inner tea frame (21) and the surface tea frame (23) through a plurality of connecting pieces, a first guide groove (24) matched with the first guide plate (3) is formed between the lower end of the surface tea frame (23) and the upper end of the middle tea frame (22), and a second guide groove (25) matched with the second guide plate (4) is formed between the upper end of the inner tea frame (21) and the lower end of the middle tea frame (22);

the first guide plate (3) is provided with a first avoidance opening (31) at each of the inner tea blanking station (61), the middle tea blanking station (62) and each tea pressing station (65);

the second guide plate (4) is provided with a second avoidance opening (41) at each of the inner tea blanking station (61), each tea pressing station (65) and the brick discharging station (66);

a third avoidance opening is formed in each tea pressing station (65) and each brick discharging station (66) of the third guide plate (5);

the first guide plate (3), the second guide plate (4) and the third guide plate (5) are all grid plates capable of ventilating;

a steaming box (7) is arranged at the tea steaming station (64), a tea steaming cavity is formed in the middle of the steaming box (7), and two ends of the steaming box (7) are respectively provided with a material feeding channel allowing the brick tea mould (2) to pass through; steam is introduced into the tea steaming cavity;

an upper pressing plate and a lower pressing plate are arranged at the tea pressing station (65), and the upper pressing plate and the lower pressing plate are respectively driven by a first air cylinder and a second air cylinder;

the production method comprises the following steps:

A. circulation of the tea brick mold (2) on the tea brick production line: dismantling the brick tea mould (2) at the tail end of the brick tea production line, sending the brick tea mould into the head end of the brick tea production line after cleaning, enabling the first guide plate (3) to penetrate through the first guide groove (24), enabling the second guide plate (4) to penetrate through the second guide groove (25) respectively, and intermittently pushing the brick tea mould (2) at the head end of the brick tea production line to move so as to enable the brick tea moulds (2) on the brick tea production line to move synchronously;

B. the tea brick mold (2) which runs to the tea brick blanking station (61) is filled with tea: the third guide plate (5) covers the lower end opening of the inner tea frame (21), and weighed inner tea is poured into the inner tea frame (21) from top to bottom;

C. putting the intermediate tea into a brick tea mould (2) running to an intermediate tea blanking station (62): the third guide plate (5) covers the lower end opening of the inner tea frame (21), the second guide plate (4) covers the lower end opening of the middle tea frame (22), and the weighed middle tea is poured into the middle tea frame (22) from top to bottom;

D. putting the intermediate tea into a brick tea mould (2) running to a flour tea blanking station (63): the third guide plate (5) covers the lower end opening of the inner tea frame (21), the second guide plate (4) covers the lower end opening of the middle tea frame (22), the first guide plate (3) covers the lower end opening of the upper tea frame (23), and the weighed upper tea is poured into the upper tea frame (23) from top to bottom;

E. steaming tea: in the process that each brick tea mould (2) passes through the steam box (7), the inner tea, the middle tea and the flour tea are synchronously steamed and boiled by steam;

F. pressing tea: the first air cylinder and the second air cylinder synchronously act at the tea pressing station (65), the upper pressing plate and the lower pressing plate are driven to extrude the tea in the middle tea frame (22) towards the middle tea frame (22), the tea is extruded through the tea pressing stations (65), tea bricks are formed, and primary cooling is carried out in the forming process;

G. and (3) discharging bricks: de-moulding the brick tea at a brick ejection station (66);

H. cleaning: and (3) dismantling the brick tea mould (2) at the tail end of the brick tea production line, and cleaning the brick tea mould and installing the brick tea mould to the head end of the brick tea production line.

2. The efficient brick tea production method according to claim 1, wherein a brick discharging assembly is respectively arranged on four side walls of the middle tea frame (22), the brick discharging assembly comprises a mounting hole formed in the side wall of the middle tea frame (22), a brick discharging roller (221) is rotatably connected in the mounting hole, a straight adapting surface (222) is arranged on the peripheral surface of the brick discharging roller (221), a rectangular notch is formed in the inner side surface of the middle tea frame (22) by the mounting hole, the adapting surface can block the notch when being flush with the inner side surface of the middle tea frame (22), a rotating shaft (223) is fixedly arranged in the brick discharging roller (221), and two ends of the rotating shaft (223) are respectively and fixedly connected with a bevel gear (224); four rotating shafts (223) form a quadrilateral structure on the middle tea frame (22), and two bevel gears (224) positioned at the corners of the quadrilateral structure are meshed with each other, so that the brick discharging rollers (221) can synchronously rotate.

3. The efficient brick tea production method according to claim 2, wherein the brick discharging roller (221) is made of silica gel.

4. The efficient brick tea production method according to claim 2, wherein each side wall of the middle tea frame (22) is a vertical surface, and an inclination angle of 3-5 degrees is formed between the side wall of the inner tea frame (21) and the side wall of the middle tea frame (22).

5. The efficient brick tea production method according to claim 4, wherein a third air cylinder is arranged at the brick discharging station (66), a brick discharging frame is fixedly arranged on a push rod of the third air cylinder, the brick discharging frame comprises a supporting plate (81) and driving plates (82) symmetrically arranged at two ends of the supporting plate (81), and an inclination angle of 95-100 degrees is formed between each driving plate (82) and the supporting plate (81); when the third cylinder pushes the brick discharging frame to move upwards, the two driving plates (82) can respectively abut against the two brick discharging rollers (221) which are parallel to each other, and the brick discharging rollers (221) can synchronously rotate.

6. The efficient brick tea production method according to any one of claims 2-5, characterized in that two steam conveying pipes are arranged in the steam box (7) and are respectively positioned at the top and the bottom of the steam box (7), and a plurality of steam nozzles facing the middle of the steam box (7) are arranged on the steam conveying pipes.