Flat tea spreading device and tea spreading method

Abstract

The present invention relates to the technical field of tea spreading equipment, and discloses a flat tea spreading equipment and a tea spreading method thereof, including a cylinder and a screen plate, an equipment housing is provided on the outer side wall of the cylinder, a liftable hopper is provided on the equipment housing, a driving assembly for driving the screen plate to rotate is provided at the bottom end of the cylinder, and the rotation of the screen plate is used to spread the fresh tea leaves in the hopper on the screen plate; a ventilation assembly and a flipping assembly are provided in the cylinder below the screen plate, an air supply assembly for connecting a ring pipe and a straight pipe is provided outside the cylinder, and a switching assembly located in the equipment housing is provided on the air supply assembly, and the switching assembly is used to switch the air supply assembly to the ring pipe and the straight pipe. Through the above structure, the switching assembly can switch the air supply assembly, so that it supplies air to the ventilation assembly to shorten the tea spreading time, and supplies air to the flipping assembly, so that the fresh tea leaves on the screen plate can be blown and flipped better.

Description

Technical Field

[0001] The present invention relates to the technical field of tea spreading equipment, and in particular to a flat tea spreading equipment and a tea spreading method thereof. Background Art

[0002] Flat tea is one of the main types of famous green tea in my country. Its processing technology is fresh leaf withering - flattening and shaping - drying. This type of famous tea has been mechanized. At present, the spreading of tea leaves is an important pre-treatment process before green tea processing. The quality of fresh tea leaves can be significantly improved after reasonable spreading or withering (i.e. spreading) treatment.

[0003] For example, a tea-spreading machine disclosed in a Chinese patent with announcement number CN220088460U, although the tea-spreading machine drives the rack plate to move horizontally through a hydraulic rod, which can drive the rotating gear and the rotating rod to rotate, and the rotating rod can drive the rotating plate and the flipping rod to rotate, thereby achieving the stirring and pushing effect on the fresh tea leaves, and can increase the contact area between the tea leaves and the air, thereby achieving a rapid tea-spreading effect; however, in actual use, the fresh tea leaves are flipped by the mechanical rotation of the flipping rod, which can easily damage the fresh tea leaves, thereby affecting the quality of subsequent processing of the tea leaves. Summary of the invention

[0004] The object of the present invention is to provide a flat tea spreading device and a flat tea spreading method to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A flat tea spreading device comprises a cylinder and a screen plate arranged in the cylinder, an equipment housing is arranged on the outer wall of the cylinder, a liftable hopper is arranged on the equipment housing located at the upper end of the cylinder, a driving component for driving the screen plate to rotate is arranged at the bottom end of the cylinder, the screen plate rotates to spread fresh tea leaves in the hopper on the screen plate, a shaking component is arranged in the equipment housing, and when the driving component drives the screen plate to rotate, it is used to drive the shaking component to drive the hopper to shake; A ventilation component is provided in the cylinder below the screen disc, and the ventilation component includes an annular tube arranged along the circumference of the screen disc, and air holes are evenly distributed on the annular tube. A flipping component is also provided in the cylinder below the screen disc, and the flipping component includes a straight tube arranged along the radial direction of the screen disc, and spray holes are evenly distributed on the straight tube for blowing and flipping the fresh tea leaves on the screen disc. An air supply component for connecting the annular tube and the straight tube is provided outside the cylinder, and the air supply component is provided with a switching component located in the equipment housing, and the switching component is used to switch the air supply component to the annular tube and the straight tube; an adjusting component is provided in the equipment housing, and the adjusting component is used to drive the switching component to work and adjust the height of the hopper.

[0006] Furthermore, the driving assembly includes a motor arranged at the bottom of the cylinder, and the output shaft of the motor is connected to the screen plate through a rotating rod.

[0007] Furthermore, an upper cavity and a lower cavity are provided at the upper and lower ends in the equipment shell, and slide grooves are provided relatively along the height direction of the side wall of the upper cavity facing the cylinder body, and columns are provided relatively in the upper cavity; a lift plate that can be raised and lowered is provided in the upper cavity, and the columns penetrate the lift plate, and a mounting frame extending through the slide groove is provided on the side wall of the lift plate, and the hopper is installed on the mounting frame, and a first spring for driving the lift plate to move downward is provided on the column.

[0008] Furthermore, the shaking assembly includes a main bevel gear arranged on the rotating rod, a secondary bevel gear meshing with the main bevel gear is provided on the bottom wall of the cylinder through an L-shaped bracket, a first gear is provided on the secondary bevel gear, a rotating rod which is rotatable and extends into the lower cavity is relatively provided on the L-shaped bracket, a second gear meshing with the first gear is provided on the rotating rod, a driving ring is provided at the end of the rotating rod extending into the lower cavity, grooves are provided on the driving ring at intervals, and side walls of the grooves are provided with inclined surfaces, and a top rod extending into the corresponding grooves is relatively provided on the lifting plate, and the driving ring is rotated to make the top rod slide into or out of the groove along the inclined surface to achieve shaking of the lifting plate.

[0009] Furthermore, the switching assembly includes a main pipe and a sub-pipe arranged vertically to the main pipe, a first air channel is arranged in the main pipe, an outlet end of the first air channel is connected to the ring pipe through a connecting pipe, a second air channel is arranged in the sub-pipe and runs through the first air channel, a movable piston column is arranged in the second air channel through a second spring, an air cavity is arranged in the piston column, an air inlet and an air outlet are arranged on the side wall of the air cavity, the air outlet is connected to the straight pipe through a hose, the second spring is used to drive the piston column to move upward to close the air inlet, and the adjusting assembly is used to drive the piston column to move downward to open the air inlet.

[0010] Furthermore, the adjustment component includes a rotating shaft rotatably arranged in the lower cavity, a swivel is fixedly arranged on the rotating shaft, a clamping groove is arranged on the outer wall of the swivel along its circumference, an inclined groove is arranged relatively on the bottom wall of the clamping groove, an upper push rod extending into the corresponding inclined groove is arranged on the lifting plate, and a lower push rod extending into the corresponding inclined groove is arranged at the upper end of the piston column, and the rotating shaft drives the swivel to rotate so as to make the upper push rod and the lower push rod slide along the corresponding inclined groove, thereby realizing the relative movement of the lifting plate and the piston column.

[0011] Furthermore, an installation cavity is provided at the end of the rotating shaft facing outside the equipment shell, and an inclined slide groove is relatively provided on the inner wall of the installation cavity. A pressure column with one end extending through the equipment shell is provided in the installation cavity through a third spring, and a through hole is provided on the side wall of the equipment shell for the pressure column to extend out. A sliding column extending into the corresponding inclined slide groove is provided at the end of the pressure column located in the installation cavity, and a limit groove is provided along the axial direction on the outer side wall of the pressure column, and a limit block sliding in the limit groove is provided on the side wall of the through hole. The pressure column is pressed to drive the sliding column to slide along the inclined slide groove to realize the rotation of the rotating shaft.

[0012] Furthermore, an abutment groove for the limiting block to be inserted into is provided at the outer end of the limiting groove along the circumference of the pressure column.

[0013] Furthermore, a hand wheel is provided at the protruding end of the pressure column.

[0014] The present invention also provides a method for spreading tea leaves, which adopts the above-mentioned flat tea spreading device and specifically comprises the following steps: Step 1: weigh a certain amount of fresh tea leaves, put all the fresh tea leaves into the hopper, and at the same time, start the motor to drive the screen plate to rotate one circle. At the same time, the shaking component drives the hopper to shake up and down, so that the fresh tea leaves in the hopper fall onto the screen plate, so that the fresh tea leaves are spread on the screen plate; Step 2: When the fresh tea leaves are unevenly spread on the screen plate in step 1, the motor is continuously started to drive the screen plate to rotate, and the fresh tea leaves are evenly spread on the screen plate under the action of the push plate; Step 3: The air supply component is used to supply air to the air permeable component so that the fresh tea leaves spread on the screen plate can be ventilated to shorten the spreading time; Step 4: Press the pressure column to extend it into the installation cavity, and rotate the pressure column to extend the limit block into the abutment groove, so that the piston column moves down into the first air channel, and at the same time, the lifting plate and the hopper move up as a whole. At this time, the switching component is switched to enable the air supply component to supply air to the flipping component. At this time, the motor is started to drive the screen plate to rotate, so that the fresh tea leaves on the screen plate can be blown and flipped; Step 5. After the fresh tea leaves are blown and turned over, rotate the pressure column to make the limit block disengage from the abutment groove and move into the limit groove. At this time, pull the pressure column out to make the lifting plate and the hopper move down as a whole, and at the same time move the piston column up, so that the air supply component continues to supply air to the ventilation component, so as to continue to ventilate and spread the fresh tea leaves on the screen plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, through the arrangement of the hopper, the cylinder, the screen plate and the shaking assembly, allows fresh tea leaves to be placed in the hopper. The screen plate can be rotated one circle to spread the fresh tea leaves in the hopper on the screen plate, which can better replace manual spreading. At the same time, the rotation of the screen plate can make the hopper shake up and down, thereby better promoting the falling of the fresh tea leaves therein.

[0016] 2. The present invention, through the arrangement of the air supply component, the switching component, the ventilation component and the flipping component, enables the air supply component to supply air to the ventilation component to accelerate the air flow in the cylinder, so that the fresh tea leaves spread on the sieve plate can be ventilated to shorten the spreading time; at the same time, the switching component can switch the air supply component to supply air to the flipping component, and the flipping component can blow the fresh tea leaves on the sieve plate to flip them, and at the same time, the air blowing and flipping will not cause mechanical damage to the tea leaves, thereby better ensuring the quality of subsequent processing of the tea leaves.

[0017] 3. The present invention, through the setting of the adjustment component, makes it easier for the operator to switch the air supply component. At the same time, the adjustment component can also adjust the height of the hopper, thereby making it disengaged from the shaking component, so that when the driving component drives the screen plate to rotate to turn the fresh tea leaves, it will not cause the hopper to shake, thereby reducing the load of the driving component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the green spreading equipment in the present invention.

[0019] Figure 2 It is a cross-sectional schematic diagram of the green spreading equipment in the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the cylinder, equipment shell and hopper in the present invention.

[0021] Figure 4 It is a schematic diagram of the structure between the flipping component, the ventilation component and the screen plate in the present invention.

[0022] Figure 5 It is a schematic diagram of the structure among the shaking component, the adjusting component and the hopper in the present invention.

[0023] Figure 6 for Figure 2 Enlarged schematic diagram of part A.

[0024] Figure 7 It is a structural schematic diagram of the rotating shaft in the present invention.

[0025] Figure 8 It is a schematic structural diagram of the medium-pressure column of the present invention.

[0026] The meanings of the numbers in the figure are as follows: 100, cylinder; 101, support leg; 110, screen plate; 120, equipment housing; 130, hopper; 140, push plate; 150, air pipe; 201, upper chamber; 202, lower chamber; 210, annular tube; 220, straight tube; 230, motor; 231, rotating rod; 232, main bevel gear; 240, column; 241, first spring; 250, lifting plate; 251, mounting frame; 260, L-shaped bracket; 261, secondary bevel gear; 262, first gear; 270, connecting tube; 310, rotating rod; 311, second gear; 312, driving ring; 313, groove; 401, strip notch; 410, push rod; 420, main pipe; 430, auxiliary pipe; 440, piston rod; 441, lower push rod; 450, rotating shaft; 451, rotating ring; 460, upper push rod; 501, first air channel; 502, second air channel; 510, second spring; 521, air cavity; 522, air inlet; 523, air outlet; 531, installation cavity; 540, third spring; 550, pressure column; 551, hand wheel; 601, card slot; 602, inclined slot; 611, inclined slide slot; 711, sliding column; 712, limiting groove; 713, abutting groove. DETAILED DESCRIPTION

[0027] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0028] The following is combined with Figure 1-Figure 8 This embodiment is described in further detail.

[0029] like Figure 1-3 As shown, a flat tea spreading device in this embodiment includes a cylinder 100 and a screen plate 110 arranged in the cylinder 100, an equipment housing 120 is arranged on the outer wall of the cylinder 100, and a liftable hopper 130 is arranged on the equipment housing 120 located at the upper end of the cylinder 100, and a driving component for driving the screen plate 110 to rotate is arranged at the bottom end of the cylinder 100, and the rotation of the screen plate 110 is used to spread the fresh tea leaves in the hopper 130 on the screen plate 110, and a shaking component is arranged in the equipment housing 120, and when the driving component drives the screen plate 110 to rotate, it is used to drive the shaking component to drive the hopper 130 to shake; A ventilation component is provided in the cylinder 100 located below the screen disc 110, and the ventilation component includes an annular tube 210 arranged along the circumference of the screen disc 110, and the annular tube 210 is evenly distributed with ventilation holes. A flipping component is also provided in the cylinder 100 located below the screen disc 110, and the flipping component includes a straight tube 220 arranged along the radial direction of the screen disc 110, and the straight tube 220 is evenly distributed with spray holes for blowing and flipping the fresh tea leaves on the screen disc 110. An air supply component for connecting the annular tube 210 and the straight tube 220 is provided outside the cylinder 100, and the air supply component is provided with a switching component located in the equipment housing 120, and the switching component is used to switch the air supply component to the annular tube 210 and the straight tube 220; an adjustment component is provided in the equipment housing 120, and the adjustment component is used to drive the switching component to work and adjust the height of the hopper 130.

[0030] In actual use of this embodiment, the upper end of the cylinder 100 is opened, and the device housing 120 is integrally formed on the outer wall of the cylinder 100 along the height direction of the cylinder 100, wherein the upper end of the device housing 120 extends above the upper end of the cylinder 100 to facilitate the installation of the hopper 130; The hopper 130 is located above the screen plate 110 and is used to place fresh tea leaves. The screen plate 110 can be rotatably installed in the cylinder 100 under the action of the driving assembly. Figure 5 As shown, the hopper 130 is arranged along the radial direction of the mesh plate 110, and a strip-shaped slot 401 is arranged at the bottom end thereof, so that fresh tea leaves are put into the hopper 130, so that the fresh tea leaves entering the hopper 130 can fall onto the mesh plate 110 through the strip-shaped slot 401, and the fresh tea leaves can be preferably spread on the mesh plate 110 with the mesh plate 110 rotating one circle; In order to prevent the fresh tea leaves from accumulating in the hopper 130 and thus failing to fall out of the strip-shaped slot 401, in this embodiment, a shaking assembly is provided so that during the spreading of the fresh tea leaves, the screen plate 110 can rotate to drive the shaking assembly to shake the hopper 130 up and down, thereby preventing the fresh tea leaves in the hopper 130 from being blocked. In this embodiment, in order to improve the uniformity of spreading the fresh tea leaves on the mesh plate 110, a detachable pushing plate 140 is provided on the inner wall of the cylinder 100 above the mesh plate 110 along the radial direction of the mesh plate 110 through screws, so that when the fresh tea leaves in the hopper 130 are spread on the mesh plate 110, the mesh plate 110 continues to rotate so that the pushing plate 140 can push the fresh tea leaves on the mesh plate 110, so that the fresh tea leaves are evenly spread on the mesh plate 110; In this embodiment, combined with Figure 3As shown, the ring tube 210 is installed on the bottom wall of the cylinder 100 through the installation rod, wherein, through the arrangement of the ring tube 210, the air vents and the air supply assembly, in actual use, the air supply assembly supplies air into the ring tube 210, and the air entering the ring tube 210 enters the cylinder 100 through the air vents. Since the mesh plate 110 is ventilated, the air flow in the cylinder 100 can be accelerated, thereby improving the ventilation effect of the fresh tea leaves spread on the mesh plate 110, so as to shorten the spreading time; In this embodiment, one end of the straight tube 220 is threadedly mounted on the inner wall of the cylinder 100, wherein, through the arrangement of the straight tube 220, the spray hole and the air supply assembly, in actual use, the air supply assembly supplies air into the straight tube 220, and the air entering the straight tube 220 is sprayed out from the spray hole, and then blows the fresh tea leaves thereon through the mesh plate 110 to make them flip. With the rotation of the mesh plate 110, the fresh tea leaves can be preferably flipped. At the same time, the air blowing and flipping will not cause mechanical damage to the tea leaves, and the quality of subsequent processing of the tea leaves can be better guaranteed. Among them, by setting the air supply component and the switching component, the switching component can switch the air supply component to supply air to the ring pipe 210 and the straight pipe 220, that is, the green tea spreading device can ventilate and turn the fresh tea leaves only by using the air supply component, making the structure of the green tea spreading device more compact; Among them, through the setting of the adjustment component, it is easier for the operator to switch the air supply component. At the same time, the adjustment component can also adjust the height of the hopper 130, so that it can be separated from the cooperation with the shaking component, so that when the driving component drives the screen plate 110 to rotate to turn the fresh tea leaves, it will not drive the hopper 130 to shake, thereby reducing the load of the driving component.

[0031] Combination Figure 4 As shown, in this embodiment, the driving assembly includes a motor 230 disposed at the bottom of the cylinder 100 , and the output shaft of the motor 230 is connected to the screen plate 110 through a rotating rod 231 .

[0032] In this embodiment, a flange is provided at the upper end of the rotating rod 231, and the screen plate 110 is fixedly connected to the flange by bolts, so as to realize the assembly between the two; wherein the motor 230 is fixedly installed at the lower end of the cylinder 100, and the rotating rod 231 can be driven by the motor 230 to drive the screen plate 110 to rotate; In order to install the motor 230 at the lower end of the cylinder 100 , a leg 101 for supporting the cylinder 100 is provided at the lower end of the cylinder 100 .

[0033] In this embodiment, an upper chamber 201 and a lower chamber 202 are provided at the upper and lower ends in the equipment shell 120, and slide grooves are relatively provided on the side wall of the upper chamber 201 facing the cylinder 100 along its height direction, and columns 240 are relatively provided in the upper chamber 201; a lift plate 250 that can be raised and lowered is provided in the upper chamber 201, and the column 240 is arranged to penetrate the lift plate 250, and a mounting frame 251 extending through the slide groove is provided on the side wall of the lift plate 250, and the hopper 130 is installed on the mounting frame 251, and a first spring 241 for driving the lift plate 250 to move downward is provided on the column 240.

[0034] In this embodiment, the column 240 is arranged in the upper cavity 201 along the height direction of the equipment housing 120. The column 240 passes through the lifting plate 250 so that the lifting plate 250 is restricted, so that it can be installed in the upper cavity 201 in a liftable manner. The mounting frame 251 is penetrated through the slide groove so that the hopper 130 is installed on the mounting frame 251, and then the hopper 130 is installed on the lifting plate 250, so that it can be lifted and installed at the upper end of the equipment housing 120.

[0035] Combination Figure 5 As shown, in this embodiment, the shaking assembly includes a main bevel gear 232 arranged on the rotating rod 231, and a secondary bevel gear 261 meshing with the main bevel gear 232 is provided on the bottom wall of the cylinder 100 through an L-shaped bracket 260, and a first gear 262 is provided on the secondary bevel gear 261. A rotating rod 310 which is rotatable and extends into the lower cavity 202 is relatively provided on the L-shaped bracket 260, and a second gear 311 meshing with the first gear 262 is provided on the rotating rod 310. A driving ring 312 is provided at the end of the rotating rod 310 extending into the lower cavity 202, and grooves 313 are provided on the driving ring 312 at intervals, and the side walls of the grooves 313 are provided with inclined surfaces. A top rod 410 extending into the corresponding grooves 313 is relatively provided on the lifting plate 250, and the rotation of the driving ring 312 is used to make the top rod 410 slide into or out of the groove 313 along the inclined surface, thereby realizing the shaking of the lifting plate 250.

[0036] In this embodiment, the L-shaped bracket 260 is fixedly mounted on the inner bottom wall of the cylinder 100 by bolts; wherein, under the action of the first spring 241, the lifting plate 250 moves down to the bottom of the upper chamber 201, so that the push rod 410 moves down to the corresponding driving ring 312 and cooperates with the driving ring 312; Through the structure of this embodiment, the rotation of the rotating rod 231 can drive the main bevel gear 232 to rotate, and then drive the secondary bevel gear 261 to rotate, so that the first gear 262 on it rotates, and then under the action of the second gear 311, the rotating rods 310 on both sides rotate synchronously, and then drive the driving ring 312 to rotate synchronously. Therefore, under the action of the first spring 241, the top rod 410 slides into or out of the groove 313 along the corresponding inclined surface synchronously, and then pushes the lifting plate 250 to rise and fall to achieve the up and down shaking of the hopper 130 installed thereon, so as to prevent the fresh tea leaves in the hopper 130 from being blocked; Specifically, the motor 230 drives the rotating rod 231 to rotate at a relatively low speed. In order to better enable the shaking assembly to shake the hopper 130 up and down, the gear ratio between the main bevel gear 232 and the secondary bevel gear 261 can be designed to meet actual needs during actual use.

[0037] Combination Figure 5-6 As shown, in this embodiment, the switching component includes a main pipe 420 and a sub-pipe 430 arranged perpendicular to the main pipe 420, a first air channel 501 is arranged in the main pipe 420, an outlet end of the first air channel 501 is connected to the annular pipe 210 via a connecting pipe 270, a second air channel 502 is arranged in the sub-pipe 430, and a movable piston column 440 is arranged in the second air channel 502 via a second spring 510, an air cavity 521 is arranged in the piston column 440, an air inlet 522 and an air outlet 523 are arranged on the side wall of the air cavity 521, the air outlet 523 is connected to the straight pipe 220 via a hose, the second spring 510 is used to drive the piston column 440 to move upward to close the air inlet 522, and the adjusting component is used to drive the piston column 440 to move downward to open the air inlet 522.

[0038] In actual use of this embodiment, one end of the main pipe 420 is extended out of the device housing 120, and the other end is extended into the cylinder 100 through the lower cavity 202, so that the air inlet end of the first air channel 501 is located outside the device housing 120, and the air outlet end is located inside the cylinder 100, so as to be connected to the ring pipe 210 through the connecting pipe 270; The air supply assembly further includes an air pipe 150 connected to the air inlet end of the first air channel 501, and the air pipe 150 is provided with a fan (not shown in the figure) for supplying air into the first air channel 501; In this embodiment, the main pipe 420 and the auxiliary pipe 430 are arranged orthogonally, the second airway 502 penetrates the first airway 501 and is opened at the upper end. At the same time, the diameter of the second airway 502 is larger than the first airway 501, thereby realizing that the second spring 510 pushes the piston rod 440 to be slidably installed in the second airway 502, and the piston rod 440 can block the first airway 501 when penetrating the first airway 501, wherein, by the arrangement of the second spring 510, in the initial state, the piston rod 440 moves upward to make the auxiliary pipe 502 open. The side wall of 430 blocks the air inlet 522. At this time, the air in the first air channel 501 flows into the annular tube 210 through the connecting tube 270, so that the breathable component works; when the piston rod 440 moves downward to penetrate the first air channel 501, the air inlet 522 moves into the first air channel 501 to open the air inlet 522, so that the air in the first air channel 501 enters the air cavity 521 through the air inlet 522, and enters the straight tube 220 through the air outlet 523 and the hose, so that the flip assembly works; Specifically, the apertures of the air inlet 522 and the air outlet 523 are smaller than the aperture of the first air duct 501. Thus, when the fan power remains unchanged, the air flow rate entering the straight pipe 220 through the air inlet 522 can be increased, thereby better blowing and turning the fresh tea leaves spread on the screen plate 110.

[0039] Combination Figure 7 As shown, in this embodiment, the adjustment component includes a rotating shaft 450 rotatably arranged in the lower cavity 202, a swivel 451 is fixedly arranged on the rotating shaft 450, a slot 601 is arranged on the outer wall of the swivel 451 along its circumference, an inclined slot 602 is arranged on the bottom wall of the slot 601, an upper push rod 460 extending into the corresponding inclined slot 602 is arranged on the lifting plate 250, and a lower push rod 441 extending into the corresponding inclined slot 602 is arranged at the upper end of the piston column 440, the rotating shaft 450 drives the swivel 451 to rotate so as to make the upper push rod 460 and the lower push rod 441 slide along the corresponding inclined slot 602, thereby realizing the relative movement of the lifting plate 250 and the piston column 440.

[0040] In actual use of this embodiment, the adjustment assembly is installed above the switching assembly, that is, it is located between the upper push rod 460 and the lower push rod 441; wherein, the end of the rotating shaft 450 close to the cylinder 100 is rotatably installed in the lower cavity 202 through the bearing seat, thereby preferably realizing the rotatable installation of the rotating shaft 450; The present embodiment adopts the above-mentioned structure, so that under the action of the first spring 241 and the second spring 510, the upper push rod 460 and the lower push rod 441 are close to each other, so that they can both extend into the corresponding inclined groove 602 and are both located at the bottom end of the inclined groove 602. At this time, it is the initial state, the air permeable component works, and the lifting plate 250 makes the push rod 410 cooperate with the driving ring 312 under the action of the first spring 241. At this time, the rotating shaft 450 can drive the rotating ring 451 to rotate, thereby making the upper push rod 460 and the lower push rod 441 slide along the corresponding inclined groove 602, so that the two slide into the slot 601, and then the upper push rod 460 and the lower push rod 441 move away from each other, thereby driving the lifting plate 250 and the hopper 130 to move upward as a whole, so that the push rod 410 is separated from the cooperation with the driving ring 312, and at the same time, the piston column 440 moves downward to open the air inlet 522, thereby realizing the height adjustment of the hopper 130 by the adjusting component and the switching operation of the switching component; Among them, through the setting of the card slot 601, it is possible to limit the upper support rod 460 and the lower support rod 441 to ensure the cooperation between the two and the corresponding inclined groove 602.

[0041] In this embodiment, an installation cavity 531 is provided at the end of the rotating shaft 450 facing outside the equipment housing 120, and an inclined groove 611 is relatively provided on the inner wall of the installation cavity 531. A pressure column 550 with one end extending through the equipment housing 120 is provided in the installation cavity 531 through a third spring 540, and a through hole is provided on the side wall of the equipment housing 120 for the pressure column 550 to extend out. A sliding column 711 extending into the corresponding inclined groove 611 is provided at the end of the pressure column 550 located in the installation cavity 531, and a limiting groove 712 is provided on the outer wall of the pressure column 550 along its axial direction, and a limiting block sliding in the limiting groove 712 is provided on the side wall of the through hole. The pressure column 550 is pressed to drive the sliding column 711 to slide along the inclined groove 611 to realize the rotation of the rotating shaft 450.

[0042] In this embodiment, the openings of the upper cavity 201 and the lower cavity 202 are arranged outward, and side panels are fixedly installed at the openings, and through holes are arranged on the side panels; The limiting groove 712 and the limiting block are arranged in cooperation, so that the pressure column 550 is restricted and cannot rotate in the circumferential direction; When the present embodiment is actually used, the pressure column 550 is pressed to extend into the installation cavity 531, so that the sliding column 711 slides in the corresponding inclined groove 611. Since the pressure column 550 cannot rotate circumferentially, the sliding column 711 squeezes the corresponding side wall of the inclined groove 611 during the process of extending into the installation cavity 531, so that the rotating shaft 450 rotates. The third spring 540 is provided to enable the pressure column 550 to extend, and then cooperate with the operator to pull the pressure column 550 out of the installation cavity 531, so that the rotation reset of the rotating shaft 450 can be better realized, so that the rotating shaft 450 can rotate forward and reversely, so that the adjusting component can work. In actual use, in order to keep the sliding column 711 sliding to the inner end of the inclined sliding groove 611 to keep the upper push rod 460 and the lower push rod 441 away from each other, in this embodiment, Figure 8 As shown, the outer end of the limit groove 712 is provided with an abutment groove 713 for the limit block to be inserted along the circumference of the pressure column 550, whereby when the pressure column 550 is pressed to extend to the innermost part of the installation cavity 531, the pressure column 550 is rotated along the rotation direction of the rotating shaft 450, so that the limit block is inserted into the abutment groove 713, thereby better fixing the pressure column 550; when it is necessary to pull and reset the pressure column 550, the pressure column 550 is rotated in the opposite direction to make the limit block disengage from the abutment groove 713 to the limit groove 712, and then the pressure column 550 is pulled outward, which is simple and convenient to operate.

[0043] In order to facilitate the operator to rotate the pressing column 550 , a hand wheel 551 is provided at the protruding end of the pressing column 550 .

[0044] This embodiment also provides a method for spreading green tea, which uses the above-mentioned spreading green tea device and specifically includes the following steps: Step 1: weigh a certain amount of fresh tea leaves and put all of them into the hopper 130. At the same time, start the motor 230 to drive the mesh plate 110 to rotate one circle. At the same time, the shaking component drives the hopper 130 to shake up and down, so that the fresh tea leaves in the hopper 130 fall onto the mesh plate 110, so that the fresh tea leaves are spread on the mesh plate 110. Step 2: When the fresh tea leaves are unevenly spread on the mesh plate 110 in step 1, the motor 230 is started to rotate the mesh plate 110, and the fresh tea leaves are evenly spread on the mesh plate 110 under the action of the push plate 140; Step 3: The air supply component is used to supply air to the air permeable component so that the fresh tea leaves spread on the mesh plate 110 can be ventilated to shorten the spreading time; Step 4: Press the pressure column 550 to extend it into the installation cavity 531, and rotate the pressure column 550 to extend the limit block into the abutment groove 713, so that the piston column 440 moves down to the first air channel 501, and at the same time, the lifting plate 250 and the hopper 130 move up as a whole. At this time, the switching component is switched to enable the air supply component to supply air to the flipping component. At this time, the motor 230 is started to drive the screen plate 110 to rotate, so that the fresh tea leaves on the screen plate 110 can be blown and flipped; Step 5. After the fresh tea leaves are blown and turned over, the pressing column 550 is rotated to make the limit block disengage from the abutment groove 713 and move into the limit groove 712. At this time, the pressing column 550 is pulled out to make the lifting plate 250 and the hopper 130 move downward as a whole, and the piston column 440 moves upward, so that the air supply component continues to supply air to the ventilation component, so as to continue to ventilate and spread the fresh tea leaves on the screen plate 110.

[0045] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A flat tea-leaf spreading device, comprising a cylinder (100) and a screen plate (110) arranged in the cylinder (100), characterized in that: An equipment housing (120) is provided on the outer wall of the cylinder (100); a liftable hopper (130) is provided on the equipment housing (120) located at the upper end of the cylinder (100); a driving component for driving a mesh plate (110) to rotate is provided at the bottom end of the cylinder (100); the mesh plate (110) rotates to spread fresh tea leaves in the hopper (130) on the mesh plate (110); a shaking component is provided in the equipment housing (120); when the driving component drives the mesh plate (110) to rotate, the shaking component drives the hopper (130) to shake; A ventilating assembly is provided in the cylinder (100) below the screen plate (110), the ventilating assembly comprising an annular tube (210) arranged along the circumference of the screen plate (110), the annular tube (210) having ventilating holes evenly distributed thereon, and a flipping assembly is also provided in the cylinder (100) below the screen plate (110), the flipping assembly comprising a straight tube (220) arranged along the radial direction of the screen plate (110), the straight tube (220) having ventilating holes evenly distributed thereon for flipping the screen plate (110). A spray hole for blowing and turning fresh tea leaves, an air supply assembly for connecting the annular tube (210) and the straight tube (220) is provided outside the cylinder (100), a switching assembly located in the device housing (120) is provided on the air supply assembly, the switching assembly is used to switch between the air supply assembly to the annular tube (210) and the air supply to the straight tube (220); an adjustment assembly is provided in the device housing (120), the adjustment assembly is used to drive the switching assembly to work and to adjust the height of the hopper (130).

2. A flat tea spreading device according to claim 1, characterized in that: The driving assembly comprises a motor (230) arranged at the bottom of the cylinder (100), and the output shaft of the motor (230) is connected to the screen plate (110) via a rotating rod (231).

3. The flat tea spreading equipment according to claim 2, characterized in that: An upper chamber (201) and a lower chamber (202) are provided at upper and lower ends of the equipment housing (120); a slide groove is provided on the side wall of the upper chamber (201) facing the cylinder (100) along its height direction; and columns (240) are provided in the upper chamber (201); a lifting plate (250) that can be raised and lowered is provided in the upper chamber (201); the columns (240) penetrate the lifting plate (250); a mounting frame (251) extending through the slide groove is provided on the side wall of the lifting plate (250); the hopper (130) is installed on the mounting frame (251); and a first spring (241) for driving the lifting plate (250) to move downward is provided on the column (240).

4. The flat tea spreading equipment according to claim 3, characterized in that: The shaking assembly comprises a main bevel gear (232) arranged on a rotating rod (231); a secondary bevel gear (261) meshing with the main bevel gear (232) is arranged on the bottom wall of the cylinder (100) via an L-shaped bracket (260); a first gear (262) is arranged on the secondary bevel gear (261); a rotating rod (310) rotatably extending into the lower cavity (202) is arranged on the L-shaped bracket (260); a second gear (262) meshing with the first gear (262) is arranged on the rotating rod (310) The end of the rotating rod (310) extending into the lower cavity (202) is provided with a driving ring (312), grooves (313) are arranged at intervals on the driving ring (312), and the side walls of the grooves (313) are provided with inclined surfaces. The lifting plate (250) is provided with a push rod (410) extending into the corresponding groove (313), and the driving ring (312) is rotated to make the push rod (410) slide into or out of the groove (313) along the inclined surface, thereby achieving the shaking of the lifting plate (250).

5. The flat tea spreading equipment according to claim 4, characterized in that: The switching assembly comprises a main pipe (420) and a secondary pipe (430) arranged perpendicular to the main pipe (420); a first air channel (501) is arranged in the main pipe (420); an air outlet end of the first air channel (501) is connected to the ring pipe (210) via a connecting pipe (270); a second air channel (502) penetrating the first air channel (501) is arranged in the secondary pipe (430); a movable piston column (440) is arranged in the second air channel (502) via a second spring (510); an air cavity (521) is arranged in the piston column (440); an air inlet (522) and an air outlet (523) are arranged on the side wall of the air cavity (521); the air outlet (523) is connected to the straight pipe (220) via a hose; the second spring (510) is used to drive the piston column (440) to move upward to close the air inlet (522); and the regulating assembly is used to drive the piston column (440) to move downward to open the air inlet (522).

6. The flat tea spreading equipment according to claim 5, characterized in that: The adjustment component comprises a rotating shaft (450) rotatably arranged in the lower chamber (202), a rotating ring (451) being fixedly arranged on the rotating shaft (450), a clamping groove (601) being arranged on the outer wall of the rotating ring (451) along its circumference, an inclined groove (602) being arranged on the bottom wall of the clamping groove (601), an upper push rod (460) extending into the corresponding inclined groove (602) being arranged on the lifting plate (250), a lower push rod (441) extending into the corresponding inclined groove (602) being arranged at the upper end of the piston column (440), the rotating shaft (450) driving the rotating ring (451) to rotate so as to make the upper push rod (460) and the lower push rod (441) slide along the corresponding inclined groove (602), thereby realizing relative movement of the lifting plate (250) and the piston column (440).

7. The flat tea spreading equipment according to claim 6, characterized in that: An installation cavity (531) is provided at the end of the rotating shaft (450) facing outside the device housing (120), and an inclined sliding groove (611) is relatively provided on the inner wall of the installation cavity (531). A pressure column (550) with one end extending through the device housing (120) is provided in the installation cavity (531) through a third spring (540), and a through hole for the pressure column (550) to extend is provided on the side wall of the device housing (120). A sliding column (711) extending into the corresponding inclined sliding groove (611) is provided at the end of the pressure column (550) located in the installation cavity (531), and a limiting groove (712) is provided on the outer wall of the pressure column (550) along its axial direction, and a limiting block sliding in the limiting groove (712) is provided on the side wall of the through hole, and the pressure column (550) is pressed to drive the sliding column (711) to slide along the inclined sliding groove (611) to realize the rotation of the rotating shaft (450).

8. The flat tea spreading equipment according to claim 7, characterized in that: An abutment groove (713) for the limiting block to be inserted into is provided at the outer end of the limiting groove (712) along the circumference of the pressure column (550).

9. The flat tea spreading equipment according to claim 7, characterized in that: A hand wheel (551) is provided at the protruding end of the pressure column (550).

10. A method for spreading tea leaves, which uses the flat tea spreading device according to any one of claims 1 to 9, and specifically comprises the following steps: Step 1: weigh a certain amount of fresh tea leaves, and put all of the fresh tea leaves into the hopper (130); at the same time, start the motor (230) to drive the screen plate (110) to rotate one circle; at the same time, the shaking component drives the hopper (130) to shake up and down, so that the fresh tea leaves in the hopper (130) fall onto the screen plate (110), thereby spreading the fresh tea leaves on the screen plate (110); Step 2: When the fresh tea leaves are unevenly spread on the mesh plate (110) in step 1, the motor (230) is started to drive the mesh plate (110) to rotate, and the fresh tea leaves are evenly spread on the mesh plate (110) under the action of the push plate (140); Step 3: The air supply component is used to supply air to the air permeable component, so that the fresh tea leaves spread on the mesh plate (110) can be ventilated, thereby shortening the spreading time; Step 4: Press the pressure column (550) to extend it into the installation cavity (531), and rotate the pressure column (550) to extend the limit block into the abutment groove (713), thereby moving the piston column (440) downward into the first air channel (501), and at the same time, the lifting plate (250) and the hopper (130) are moved upward as a whole. At this time, the switching component is switched so that the air supply component is used to supply air to the flipping component. At this time, the motor (230) is started to drive the screen plate (110) to rotate, so that the fresh tea leaves on the screen plate (110) can be blown and flipped; Step 5. After the fresh tea leaves are blown and turned over, the pressing column (550) is rotated to allow the limit block to disengage from the abutment groove (713) and move into the limit groove (712). At this time, the pressing column (550) is pulled out to move the lifting plate (250) and the hopper (130) downward as a whole, and the piston column (440) is moved upward, so that the air supply component continues to supply air to the ventilation component, so as to continue to ventilate and spread the fresh tea leaves on the screen plate (110).

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