Oolong tea spreading machine

Abstract

The utility model relates to an oolong tea spreading machine which is characterized in that the oolong tea spreading machine comprises a machine frame and a roller rotationally connected to the machine frame, two open windows arranged in the length direction of the roller are oppositely formed in the roller wall of the roller, and turnover plates with air holes are installed on the open windows. The overturning plate can overturn around a rotating shaft parallel to the rotating axis of the roller, when the overturning plate is overturned to close the opening window, the overturning plate and the other roller walls of the roller form a complete column wall surface of the roller, and when the overturning plate is overturned to open, the overturning plate and the lower roller wall of the roller form a supporting surface for spreading and airing tea leaves; the roller comprises two side wall plates which are vertically arranged, a breathable bottom plate which is fixed between the two side wall plates, a breathable top plate which is fixed between the two side wall plates, and two turnover plates of which one side edges are rotationally connected to the side edge of the breathable bottom plate. The oolong tea spreading machine is reasonable in design, and is beneficial to further improving the fine manipulation efficiency and the quality of tea leaves.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of tea processing equipment, in particular to a kind of oolong tea spreading machine. BACKGROUND

[0002] Making green is one of the key processes of manufacturing oolong tea. Making green can properly regulate water evaporation and internal decomposition during wilting. The leaf edge cells are damaged by mechanical force, which promotes the oxidation, polymerization and condensation of polyphenolic compounds, and produces colored substances and promotes the formation of aromatic compounds. Making green includes two processes of airing green and shaking green (spreading of oolong tea is airing green, and shaking is shaking green). The cell water absorption of leaf tissue is enhanced by vibration, and the transport function of the transport tissue is improved. The water in the stem is transported to the leaf through the leaf vein, and the aroma substances in the stem are transferred to the leaf with the water. Water-soluble substances accumulate in the leaf. Due to the penetration of water in the stem vein to the leaf, the leaf returns to the swollen state after shaking, which is called green recovery, commonly known as green sun. After shaking, it enters the airing green, which is also called static, waiting green, spreading green. During the airing green process, the making green leaves are in a relatively stationary state, the leaf continues to evaporate water, the leaf loses water, the stem replenishes less water to the leaf, and the leaf is in a wilting state, which is called green. During the making green process, the leaf undergoes chemical changes during wilting, the green color gradually fades, and the edge gradually turns red. Through 5-7 times of alternating airing and shaking, when the leaf presents edge red (vermilion red), middle green (or yellow green), vein transparent, shape like a spoon, appearance hard, soft feeling, and emits strong fruit aroma, osmanthus fragrance or orchid fragrance, it is the appropriate degree of making green.

[0003] The traditional process of making green is carried out manually, which is labor-intensive. In order to realize mechanized making green, the present search found a Chinese patent "Intelligent tea making machine", announcement number CN216255221U, which includes a rack, a roller, a blowing device and a pipe. The roller is a cylindrical roller for tea making, which can be rotatably assembled on the rack. The blowing device is assembled on the rack, and the blowing device is arranged adjacent to the end of the cylindrical structure of the roller. The pipe is a circular pipe structure, one end of which is assembled on the blowing device, and the main body of the pipe extends into the roller through the end of the roller. Although the air flow introduced by the blowing device forms a vortex in the roller, which is beneficial to the uniform heating of the whole tea, and makes the quality of the making green product consistent, but the patent needs to be aired after shaking, that is, the tea in the roller needs to be taken out manually for spreading and airing. After airing, it needs to be put into the roller again for shaking. After several times, the making green work is completed. Although the above-mentioned equipment realizes mechanical shaking, the overall making green efficiency is still low, and the manual workload is still large. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a kind of oolong tea spreading machine, the oolong tea spreading machine reasonable design is favorable to further improve the efficiency of making green.

[0005] The utility model oolong tea spreading machine, its characterized in that: including frame and the drum of rotation connection on frame, the two open windows of being opposite being arranged along the length direction of drum are opened on the cylinder wall of drum, the turnover board with air hole is installed on open window, the turnover board can overturn around the pivot parallel with the rotation axis of drum, when the turnover board overturns and closes open window, the turnover board and the remaining cylinder wall of drum form the complete cylinder wall surface of drum, when the turnover board overturns and opens, the turnover board and the cylinder wall of drum in low place form support surface for spreading and airing green leaf;Drum includes two side wall boards of vertical arrangement, air-permeable bottom plate fixed between two side wall boards, air-permeable top plate fixed between two side wall boards and two's one side edge rotation connection on the side edge of air-permeable bottom plate the turnover board.

[0006] Preferably, the above-mentioned turnover board is an arc-shaped plate or a flat plate, and one side edge of the turnover board is connected to the side edge of the air-permeable bottom plate through a plurality of loose-leaf connections, so that the turnover board can be turned outward.

[0007] Preferably, the above-mentioned two side wall boards are circular wooden boards, and a center shaft is fixedly connected to the center of the outer side surface of each circular wooden board, and the center shaft on one side is provided with a chain wheel transmission mechanism or a belt wheel transmission mechanism driven to rotate by a motor.

[0008] Preferably, the air-permeable bottom plate and the air-permeable top plate are oppositely arranged, and each includes a frame body fixedly connected between the two side wall boards, and an air-permeable net is laid on the frame body.

[0009] Preferably, the frame body includes two wooden strips vertically connected between the two side wall boards and a plurality of middle connecting strips connected between the two wooden strips to support the air-permeable net, and the wooden strips protrude from the inner surface of the drum to become guide vane strips for stirring green leaves when the drum rotates.

[0010] Preferably, an end edge of the above-mentioned turnover board is provided with a side plate, an inner side portion of the side plate is provided with a hook buckle, and a flange for limiting the hook buckle is arranged on the inner side surface of the two side wall boards of the drum.

[0011] Preferably, a blocking strip for preventing tea leaves from leaking is arranged at the gap position between the turnover board and the air-permeable bottom plate.

[0012] Preferably, a buckling structure for stable closure of the turnover board when the turnover board is closed is arranged between the free end of the turnover board and the drum, and the buckling structure includes a lug with a hole arranged on the free end of the turnover board and a latch arranged on the air-permeable top plate, and the latch is inserted into the hole of the lug to achieve stable closure of the turnover board.

[0013] Preferably, a support rod is arranged between the outer surface of the turnover plate and the roller, the first end of the support rod is hinged to a first support on the outer surface of the turnover plate, a guide channel is arranged on the outer surface of the roller, a screw rod is arranged in the guide channel, a bearing is arranged on the middle part of the screw rod and is in sliding fit with the guide channel, the second end of the support rod is connected to the two ends of the screw rod through a nut, a second support is arranged on the outer surface of the roller, and a tension spring is arranged between the second support and the screw rod.

[0014] Preferably, the second end of the support rod is fixedly provided with two spaced-apart fork rod portions, the bearing is arranged at a position between the two fork rod portions, the screw rod passes through the bearing and is hingedly connected to the fork rod portions at the two ends, the first end of the tension spring is connected to a position where the screw rod passes out of the fork rod portion, and the second end of the tension spring is connected to the second support.

[0015] The working method of the black tea spreading machine comprises the following steps: turning over the turnover plate to open the open window, pouring tea leaves into the roller, turning over the turnover plate to close the open window, rotating the roller under the action of an external power (a belt driving mechanism or a chain driving mechanism driven by a motor), stopping the rotation of the roller after a certain time, turning over the turnover plate to open the open window, and spreading the green leaves on the breathable bottom plate or the turnover plate (if the green leaves are concentrated on the breathable bottom plate, a tool can be used to scrape out part of the green leaves to the turnover plate), thereby implementing the green leaf airing process, turning over the turnover plate to close the open window after the green leaves spread and air on the turnover plate and the breathable bottom plate for a certain time, and rotating the roller again, so as to repeat the above steps several times, thereby completing the entire green tea making process. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0017] Figure 1 is a front view of the present application;

[0018] Figure 2 is Figure 1 a left view of the present application;

[0019] Figure 3 is a cross-sectional view of the roller (when the turnover plate closes the open window);

[0020] Figure 4 is a sectional view of the drum (when the turnover plate is turned over);

[0021] Figure 5 is a schematic view of the sectional structure of the connection between the side plate and the two side wall plates;

[0022] Figure 6 is a partial view of the connection structure between the support rod and the drum; Figure 4

[0023] Figure 7 is a schematic view of the sectional structure of the connection between the support rod and the screw rod.

[0024] The central control reset foot pedal and the combined connection method thereof will be further described in detail below with reference to the accompanying drawings and specific implementation structures. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0026] Therefore, the detailed description of the embodiments of the present application provided in the accompanying drawings below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0027] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0028] In the description of the present application, it should be noted that, unless explicitly defined and limited, the terms "arranged", "mounted", "connected", "linked" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] ​The following describes some implementation structures of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0030] The utility model oolong tea rolling machine comprises a frame 1 and a drum 2 rotatably connected to the frame 1. The drum wall shape can be cylindrical or polygonal (ie, a prism with a polygonal cross section).

[0031] Two open windows 3 are provided on the wall of the drum 2 and are arranged along the length direction of the drum. A flip plate 4 with air holes is installed on each of the open windows 3. The flip plate 4 can flip around a rotating shaft parallel to the axis of rotation of the drum. The rotating shaft can be a rotating shaft entity, or the flip plate 4 and the drum body can be connected by a loose-leaf 8, and the rotating shaft of the loose-leaf is the rotating shaft of the flip plate 4.

[0032] The drum 2 includes two side wall panels 201 arranged vertically, a breathable bottom panel 202 fixed between the two side wall panels, a breathable top panel 203 fixed between the two side wall panels, and two side edges of the flip panel 4 rotatably connected to the side edges of the breathable bottom panel. When the flip panel 4 is flipped open, there is an open window 3, which can also be used as an observation window.

[0033] When the flip plate is flipped to close the open window, the two flip plates 4 and the breathable bottom plate 202 and the breathable top plate 203 form a complete column wall surface of the drum (the column wall surface can be a cylindrical wall surface or a polygonal column wall surface). When the flip plate is flipped to open, the flip plate and the breathable bottom plate 202 form a supporting surface for spreading the green leaves, that is, the green leaves are spread on the flip plate 4 and the breathable bottom plate 202.

[0034] The flip plate can be a curved plate or a flat plate. One side of the flip plate is connected to the outer wall of the drum (the side of the breathable bottom plate) through a number of hinges so that the flip plate can be flipped outward; of course, the flip plate can also be rotated by a rotating shaft running through the wall panels on both sides of the flip plate.

[0035] The air-permeable bottom plate 202, the air-permeable top plate 203 and the two turnover plates 4 are uniformly distributed in the circumferential direction of the roller, that is, the air-permeable bottom plate 202 is arranged opposite to the air-permeable top plate 203, the lower side edges of the two turnover plates 4 are rotationally connected to the two side edges of the air-permeable bottom plate 202, and the upper side edges of the turnover plates 4 are away from the air-permeable top plate 203 when the turnover plates 4 are turned over. After the tea leaves roll in the roller for some time, the turnover plates 4 are opened (at this time, the air-permeable bottom plate 202 is located at the lowest position), so that the tea leaves can be spread and dried on the turnover plates 4 or the air-permeable bottom plate 202. Alternatively, the tea leaves concentrated on the air-permeable bottom plate 202 can be manually scraped into the turnover plates 4, so that the tea leaves are not excessively concentrated and piled up, the tea leaves can be fully exposed to oxygen in the air to rapidly generate oxidation, the problem that the tea leaves are excessively concentrated and piled up in the existing tea-making equipment is solved, the effect of spreading and drying the tea leaves is close to that of the traditional water-sieve drying, the quality of the tea leaves is ensured (such as being conducive to promoting the water-removal of the tea leaves, making the red edges of the tea leaves bright and bright, and improving the aroma and the pure quality of the tea leaves), and the problem of gas piling up and dull red edges is avoided.

[0036] The two side wall plates 201 can be circular wooden plates, and a central shaft 5 is fixedly connected to the center of the outer side of each circular wooden plate. The central shaft is supported on the frame 1 by a bearing seat 6. A sprocket transmission mechanism or a belt wheel transmission mechanism 7 driven to rotate by a motor 24 is installed on one of the central shafts. The roller is driven to rotate under the driving of the motor.

[0037] The air-permeable bottom plate 202 and the air-permeable top plate 203 are arranged opposite to each other, and each includes a frame 9 fixedly connected between the two side wall plates. An air-permeable net is laid on the frame. The air-permeable net can be a metal net, a stainless steel plate densely provided with holes or a net woven from rattan.

[0038] The frame 9 includes two wooden strips 901 vertically connected between the two side wall plates and a plurality of intermediate connecting strips 902 (the intermediate connecting strips 902 can be steel strips) connected between the two wooden strips for supporting the air-permeable net. The wooden strips protrude from the inner surface of the roller to become guide vane strips for stirring the tea leaves when the roller rotates. The frame 9 is limited between the two side wall plates.

[0039] Of course, the guide vane strips (the wooden strips 901) can also be made of metal strips or bamboo strips. The cross-sectional shape of the guide vane strips can be rectangular, triangular or semicircular. Preferably, the guide vane strips are installed at the upper side edges of the air-permeable bottom plate 202 (as the frame strips of the air-permeable bottom plate 202), so that when the machine is stopped and the turnover plates 4 are about to be turned over, the tea leaves located in the area of the turnover plates 4 will not directly slide into the air-permeable bottom plate 202, thereby reducing the workload of subsequently scraping part of the tea leaves from the air-permeable bottom plate 202 into the area of the turnover plates 4.

[0040] In order to limit the turning range of the turning plate, the end edge of the turning plate is provided with a side plate 10, the inner side of the side plate is provided with a hook 11, and a flange 12 for limiting the hook is arranged on the two side walls of the roller. When the turning plate is turned open, the hook 11 is limited by the flange 12, so that the turning plate cannot continue to turn down. The turning plate includes two side plates 10 (close to the two side walls 201), two horizontal strips vertically and fixedly connected between the two side plates 10, and a plurality of longitudinal strips perpendicular to the two horizontal strips (in an arc shape). A breathable mesh is arranged on the two horizontal strips and the plurality of longitudinal strips. The breathable mesh can be a metal mesh, a stainless steel plate densely provided with holes, or a mesh woven from rattan. The horizontal strips are connected to the wooden strips 901 of the breathable bottom plate 202 through a loose-leaf connection.

[0041] In order to stably connect the turning plate to the roller when closed, a buckle structure is arranged between the free end of the turning plate and the roller for closing the turning plate. The buckle structure includes a lug 13 provided with a hole on the free end of the turning plate and a bolt 14 arranged on the breathable top plate. When the turning plate is closed to open the window, the bolt is inserted into the hole of the lug to achieve stable closing of the turning plate.

[0042] In order to avoid tea leaking out of the roller, a blocking strip 15 for preventing tea from leaking out is arranged at the gap position between the turning plate and the cylinder wall of the roller. The blocking strip 15 can be a plastic sheet, a wooden sheet, or a metal sheet.

[0043] In order to make the turning plate have a certain resistance after being turned open, so that the turning open is more stable, a support rod 16 is arranged between the outer surface of the turning plate and the roller. The first end of the support rod is hingedly connected to the first support 17 on the outer surface of the turning plate 4 through a pin shaft. A guide channel 18 is arranged on the outer surface of the roller. The guide channel 18 is formed by bending a steel strip into an arc shape, and the two ends of the steel strip are welded to the outer surface of the roller to form the guide channel. A screw rod 19 is arranged in the guide channel. A bearing 20 that slidably cooperates with the guide channel is arranged on the middle part of the screw rod. The second end of the support rod is locked and connected to the two end parts of the screw rod through a nut. A second support 21 is arranged on the outer surface of the roller. A tension spring 22 is arranged between the second support and the screw rod.

[0044] The second end of the support rod is fixed with two spaced-apart fork rods 23, which form an angle of 90-135 degrees with the support rod 16. The bearing is arranged at a position between the two fork rods (the steel bar is also limited between the two fork rods), the screw passes through the bearing and is hingedly connected to the fork rods at both ends, the nut is locked on the end of the screw, the first end of the tensioning spring is connected to the position where the screw passes through the fork rod, and the second end of the tensioning spring is connected to the second support; when the flip plate is flipped open, it is supported by the first end of the support rod, and the support rod abuts against the steel bar at the intersection with the fork rod, and the second end of the support rod is pulled by the tensioning spring 22, so that the position where the support rod contacts the steel bar serves as a support point, so that the support rod has a tendency to hinder the flipping of the flip plate, thereby playing a role in buffering the flipping of the flip plate, and avoiding the situation where the flip plate flips up quickly and causes the green leaves to fall out of the drum.

[0045] The roller 2 installed on the frame 1 of the present application needs to ensure that the turning plate does not come into contact with the ground after being turned over.

[0046] In order to facilitate the observation of the shaking of the green leaves in the drum, several observation windows are opened on the breathable top plate. The observation windows are equipped with cover plates that can be opened and closed. The cover plates are connected to the breathable top plate through hinges, and the free end of the cover plate and the breathable top plate are also connected with the aforementioned buckle structure.

[0047] The working method of the oolong tea drying machine of the present invention is as follows: the turning plate is turned over to open the open window, the green tea leaves are poured into the drum, the turning plate is turned over to close the open window, the drum rotates under the action of external power (which can be a belt drive mechanism or a chain drive mechanism driven by a motor), and the drum stops rotating after rotating for a certain period of time, and the turning plate is turned over to open the open window. At this time, the green leaves are spread on the breathable bottom plate or the turning plate (if they are concentrated on the breathable bottom plate, some can be manually pulled out to the turning plate). At this time, the green tea drying process is implemented. After the green leaves are dried on the turning plate and the breathable bottom plate for a certain period of time, the turning plate is turned over to close the open window, and the drum starts to rotate again. This is repeated several times to complete the entire green tea making process. When using the green tea making device of the present application, there is no need to manually take out the green tea leaves from the equipment, spread them for drying, and pour them in, thereby greatly improving the working efficiency of green tea making and also being beneficial to ensuring the quality of tea.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are welcome.

Claims

1. An oolong tea rolling machine, characterized by: The invention comprises a frame and a roller rotatably connected to the frame, wherein two open windows arranged along the length direction of the roller are provided on the wall of the roller, and a flip plate with air holes is installed on the open window. The roller comprises two side wall panels arranged vertically, a breathable bottom plate fixed between the two side wall panels, a breathable top plate fixed between the two side wall panels and two flip plates rotatably connected to the side edges of the breathable bottom plate; the flip plate can flip around a rotating axis parallel to the axis of rotation of the roller, and when the flip plate is flipped open, the flip plate and the breathable bottom plate form a support surface for spreading green leaves to dry.

2. The oolong tea rolling machine according to claim 1, characterized in that: The turnover plate is an arc-shaped plate or a flat plate, and one side of the turnover plate is connected to the side of the breathable bottom plate through a plurality of hinges so that the turnover plate can be turned outward.

3. The oolong tea rolling machine according to claim 1, characterized in that: The two side wall panels are circular wooden boards, and a central axis is fixedly connected to the center of the outer side of the circular wooden board. The central axis is supported by a bearing seat on the frame, and a sprocket transmission mechanism or a pulley transmission mechanism driven by a motor is installed on the central axis on one side.

4. The oolong tea rolling machine according to claim 1, 2 or 3, characterized in that: The breathable bottom plate and the breathable top plate are arranged opposite to each other, and both comprise a frame body fixedly connected between the wall plates on both sides, and a breathable net is laid on the frame body.

5. The oolong tea rolling machine according to claim 4, characterized in that: The frame includes two wooden strips vertically connected between the two side wall panels and a plurality of intermediate connecting strips connected between the two wooden strips to support the breathable net. The wooden strips protrude from the inner surface of the drum so that they become guide strips for moving the green leaves when the drum rotates.

6. The oolong tea rolling machine according to claim 1, 2 or 3, characterized in that: The end edge of the turnover plate is provided with a side plate, the inner side of the side plate is provided with a hook, and flanges for limiting the hook are provided on the inner side surfaces of the two side wall plates of the drum.

7. The oolong tea rolling machine according to claim 1, 2 or 3, characterized in that: A blocking strip is provided at the gap between the turnover plate and the breathable bottom plate to prevent green leaves from leaking out.

8. The oolong tea rolling machine according to claim 1, 2 or 3, characterized in that: A buckling structure is provided between the free end of the flip plate and the roller for closing the flip plate. The buckling structure includes a lug with a hole installed on the free end of the flip plate and a pin installed on the breathable top plate. The pin is inserted into the hole of the lug to achieve stable closure of the flip plate.

9. The oolong tea rolling machine according to claim 1, 2 or 3, characterized in that: A support rod is provided between the outer surface of the flip plate and the roller, the first end of the support rod is hinged to the first support on the outer surface of the flip plate, a guide groove is provided on the outer surface of the roller, a screw is installed in the guide groove, a bearing that slides with the guide groove is installed in the middle of the screw, the second end of the support rod is connected to the two ends of the screw through a nut, a second support is installed on the outer surface of the roller, and a tensioning spring is installed between the second support and the screw.

10. The oolong tea rolling machine according to claim 9, characterized in that: The second end of the support rod is fixed with two spaced-apart fork rods, the bearing is located between the two fork rods, the screw passes through the bearing and both ends are hingedly connected to the fork rods, the first end of the tensioning spring is connected to the position where the screw passes through the fork rod, and the second end of the tensioning spring is connected to the second support.

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