CN111495737A - A multi-stage screening equipment that can screen good and bad tea leaves - Google Patents

Abstract

The invention discloses a multi-stage screening device capable of screening good and bad tea leaves, which can not only realize multi-stage classification of tea leaves at one time, but also use a hot air drying mechanism to perform auxiliary light drying during classification treatment. Drying and ventilation treatment can prevent adverse effects on tea leaves during grading and ensure the quality of tea leaves. Driven and rotated by the rotary drive mechanism, the multi-stage classification of tea leaves can be quickly realized. The invention has a simple structure and can quickly realize the classification treatment of batches of tea leaves.

Description

A multi-stage screening equipment that can screen good and bad tea leaves

technical field

The invention specifically relates to a multi-stage screening device capable of screening good and bad tea leaves, belonging to the technical field of screening devices.

Background technique

For the preparation of tea, it generally needs to go through the processes of picking, tea greening, grading, withering, rolling, and frying. At present, the withering, rolling, and frying of tea leaves can generally be done with special machinery and equipment. However, for the classification of tea leaves, most of them need to be done by manual sieving. It takes multiple sievings to achieve good grading, and during the grading process, it is necessary to reverse the sieve many times, and the tea leaves are easily damaged or damaged during the sieving, resulting in poor quality of the sieved tea leaves. In addition, this method results in low classification efficiency and requires a large amount of work.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a multi-stage screening device capable of screening good and bad tea leaves, so as to solve the problems raised in the above background technology.

To achieve the above object, the present invention provides the following technical solutions:

A multi-stage screening device capable of screening good and bad tea leaves, comprising a chassis frame, a bottom plate seat, a hot air drying mechanism, a multi-stage screening drum mechanism, a rotary drive mechanism and an opening and closing door, wherein the bottom of the chassis frame is The bottom plate seat is fixedly arranged, and the hot air drying mechanism is arranged on the bottom plate seat. The axis of the multi-stage screening assembly inside the multi-stage screening drum mechanism is horizontally rotatable, and the multi-stage screening assembly is driven and rotated by the rotary drive mechanism. After the opening and closing door is opened and closed, the tea leaves to be screened can be placed in the screening cavity at the radial center of the multi-stage screening cylinder mechanism, so as to use the multi-stage screen The barrel-separating mechanism performs multi-stage sieving on the tea leaves.

Further, preferably, the multi-stage sieving cylinder mechanism includes an outer cylinder and a multi-stage sieve assembly arranged in the interior thereof, and the multi-stage sieve assembly includes an inner sieving mesh cylinder, a middle sieving mesh cylinder, an outer A screening mesh cylinder and a rotary drive end cap, wherein the rotary drive end cap is a disc structure, and the center of the rotary drive end cap is drivingly connected to the output end of the rotary drive mechanism, and the rotary drive end cap The outermost perimeter of the sieve is fixedly provided with the outer screening mesh cylinder coaxially arranged with it, and the interior of the outer screening mesh cylinder is provided with an intermediate screening mesh cylinder which is coaxially fixed on the rotary drive end cover, The inside of the intermediate screening mesh cylinder is provided with an inner screening mesh cylinder that is coaxially fixed on the rotary drive end cover, and the cavity formed between the outer screening mesh cylinder and the outer cylinder body is: The outer sieving cavity, the cavity formed between the middle sieving mesh cylinder and the outer sieving mesh cylinder is the intermediate sieving cavity, and the cavity formed between the inner sieving mesh cylinder and the middle sieving mesh cylinder is The inner sieving cavity, the outer sieving cavity, the middle sieving cavity and the inner sieving cavity are collectively configured as a multi-stage sieving cavity for multi-stage sieving of tea leaves.

Further, preferably, the sieving mesh diameter of the inner sieving mesh cylinder is larger than the sieving mesh diameter of the intermediate sieving mesh cylinder, and the sieving mesh diameter of the intermediate sieving mesh cylinder is larger than that of the outer sieving mesh cylinder. The diameter of the sieving mesh of the sieving drum.

Further, preferably, the inner side of the opening and closing door is also connected with a snap-fit sealing cover, the end of the outer cylinder away from the rotary drive mechanism is integrally provided with a snap-fit seat, and the center of the snap-fit seat is provided with a snap-fit seat. There is a circular snap-fit cavity, the snap-fit seal cover can be snap-fitted to the circular snap-fit cavity, and the inner side of the snap-fit seal cover is provided with a plurality of sealing snap rings with different diameters and coaxially arranged Each of the sealing snap rings can be sealed and clamped to the ends of the inner screening drum, the middle screening drum and the outer screening drum.

Further, preferably, a sealing ferrule is fixedly sleeved on the inner wall of the circular buckling cavity, the outer peripheral wall of the buckling sealing cover is sleeved in the sealing ferrule, and the sealing snap ring is connected to the sealing ring. The inner sieving mesh cylinder, the middle sieving mesh cylinder and the ends of the outer sieving mesh cylinder are all rotatable and sealed.

Further, preferably, a drying tube is provided on the opening and closing door, and the end of the drying tube is fixedly connected with the center of the snap-fit sealing cover so as to communicate with the screening cavity.

Further, preferably, the hot air drying mechanism includes a hot air intake pipe, an intake controller, a hot air pipe, a heater, a fan, an air intake cylinder and a fan motor, wherein the fan motor is fixed on the base plate, The fan motor and the fan motor are connected with an air intake cylinder, the air outlet end of the fan is connected to the heater, and the output end of the heater is connected to the hot air inlet through the hot air pipe. an air pipe, the hot air intake pipe is connected to the drying pipe, and the air intake controller is arranged between the hot air intake pipe and the hot air pipe.

Further, preferably, the rotary drive mechanism includes a rotary drive motor, a transmission belt and a drive wheel, wherein the rotary drive motor is fixed on the top of the chassis frame, and the output end of the rotary drive motor is connected to the transmission belt using the transmission belt. For the driving wheel, the driving shaft in the center of the driving wheel is fixedly connected with the center of the rotary driving end cover.

Further, preferably, an installation support frame is fixed at the end of the outer cylinder, a bearing seat is arranged on the installation support frame, and the drive shaft in the center of the driving wheel is rotatably arranged on the bearing seat. , and the outer cylinder is also provided with an air outlet, the air outlet of the air outlet is provided with a porous sponge, the outer cylinder is mounted on the baffle frame on the chassis frame by a support frame, and the partition A board frame is located above the base board.

Further, preferably, one side of the opening and closing door is connected to one side of the chassis frame by a hinge chain, the opening and closing door is provided with a handle, and also includes a control console, and the control console is arranged on the On the chassis frame, the control console can control the rotary drive motor to drive and rotate in a non-uniform speed manner.

Compared with the prior art, the beneficial effects of the present invention are:

The present invention provides a multi-stage screening device capable of screening good and bad tea leaves, which can not only realize multi-stage classification of tea leaves at one time, but also use a hot air drying mechanism to perform auxiliary light drying during classification treatment. Drying and ventilation treatment can prevent adverse effects on tea leaves during grading and ensure the quality of tea leaves. Driven and rotated by the rotary drive mechanism, the multi-stage classification of tea leaves can be quickly realized. The invention has a simple structure and can quickly realize the classification treatment of batches of tea leaves.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of multistage screening equipment that can screen good and bad tea leaves;

FIG. 2 is a schematic structural diagram of a hot air drying mechanism in a multi-stage screening device capable of screening good and bad tea leaves.

Fig. 3 is the structural representation of the multistage screening drum mechanism of the present invention;

Fig. 4 is the structural representation inside the multi-stage screening drum mechanism of the present invention;

Detailed ways

Referring to FIGS. 1 to 4, in the embodiment of the present invention, a multi-stage screening device capable of screening good and bad tea leaves includes a chassis frame 1, a bottom plate seat 2, a hot air drying mechanism, a multi-stage screening cylinder mechanism 8, A rotary drive mechanism and an opening and closing door 4, wherein the bottom of the chassis frame 1 is fixedly provided with the bottom plate seat, and the bottom plate seat is provided with the hot air drying mechanism, characterized in that the chassis frame is provided with There is a multi-stage screening drum mechanism 8 located above the hot air drying mechanism. The axis of the multi-stage screening drum assembly inside the multi-stage screening drum mechanism 8 is horizontally rotatable. The rotary drive mechanism drives and rotates, and one side of the chassis frame is provided with an opening and closing door that can be opened and closed. After the opening and closing door is opened and closed, the tea leaves to be screened can be placed in the multi-stage screening drum. In the sieving cavity 34 at the radial center of the mechanism, the tea leaves can be sieved in multiple stages by using the multi-stage sieving drum mechanism.

In this embodiment, the multi-stage screening drum mechanism 8 includes an outer drum body and a multi-stage screening assembly arranged inside the multi-stage screening assembly, the multi-stage screening assembly includes an inner screening drum 29, an intermediate screening screen The cylinder 28, the outer screening mesh cylinder 27 and the rotary drive end cap 26, wherein the rotary drive end cap is a disc structure, and the center of the rotary drive end cap is drivingly connected with the output end of the rotary drive mechanism, The outermost perimeter of the rotary drive end cap is fixedly provided with the outer screening mesh cylinder 27 arranged coaxially with it, and the interior of the outer screening mesh cylinder 27 is provided with a coaxial fixed arrangement on the rotary drive end cap. 26 on the middle screening drum 28, the interior of the middle screening drum 28 is provided with an inner screening drum 29 coaxially fixed on the rotary drive end cover 26, the outer screening drum 29 The cavity formed between 27 and the outer cylinder is the outer screening cavity 36, and the cavity formed between the intermediate screening mesh cylinder 28 and the outer screening mesh cylinder 27 is the intermediate screening cavity 37. The cavity formed between the inner screening mesh cylinder 29 and the intermediate screening mesh cylinder 28 is the inner screening cavity 35, and the outer screening cavity 36, the middle screening cavity 37 and the inner screening cavity 35 are collectively configured as a pair. Multi-stage sieving cavity for multi-stage sieving of tea leaves.

As a preferred embodiment, the screening mesh diameter of the inner screening mesh cylinder 29 is larger than that of the intermediate screening mesh cylinder 28, and the screening mesh aperture of the intermediate screening mesh cylinder 28 The diameter is larger than the diameter of the screening meshes of the outer screening mesh cylinder 27 .

The inner side of the opening and closing door 4 is also connected with a snap-fit sealing cover 32 , and the end of the outer cylinder away from the rotational drive mechanism is integrally provided with a snap-fit seat 33 , and the center of the snap-fit seat is provided with a snap-fit seat 33 . There is a circular snap-fit cavity, the snap-fit seal cover can be snap-fitted to the circular snap-fit cavity, and the inner side of the snap-fit seal cover is provided with a plurality of sealing snap rings with different diameters and coaxially arranged 30. Each of the sealing snap rings can be sealed and engaged with the ends of the inner screening drum 29 , the middle screening drum 28 , and the outer screening drum 27 .

A sealing ferrule 38 is fixedly sleeved on the inner wall of the circular buckling cavity, the outer peripheral wall of the buckling sealing cover 32 is sleeved in the sealing ferrule, and the sealing snap ring 30 and the inner The ends of the screening mesh cylinder 29 , the intermediate screening mesh cylinder 28 and the outer screening mesh cylinder 27 are all rotatable and sealed.

The opening and closing door 4 is provided with a drying tube 31 , and the end of the drying tube is fixedly connected to the center of the snap-fit sealing cover 32 so as to communicate with the screening cavity 34 .

The hot air drying mechanism includes a hot air intake pipe 7, an intake controller 15, a hot air pipe 19, a heater 20, a fan 17, an intake cylinder 18 and a fan motor 14, wherein the fan motor 14 is fixed on the bottom plate. On the seat, the fan motor is connected to the fan motor, the fan is connected with an air intake cylinder, the outlet end of the fan is connected to the heater, and the output end of the heater passes through the hot air pipe 19 It is connected to the hot air intake pipe 7, the hot air intake pipe 7 is connected to the drying pipe 31, and the intake controller 15 is arranged between the hot air intake pipe 7 and the hot air pipe.

In this embodiment, the rotary drive mechanism includes a rotary drive motor 9, a transmission belt 10 and a drive wheel 11, wherein the rotary drive motor is fixed on the top of the chassis frame, and the output end of the rotary drive motor adopts the A transmission belt is connected to the drive wheel, and the drive shaft at the center of the drive wheel is fixedly connected to the center of the rotary drive end cap 26 .

An installation support frame 12 is fixedly arranged at the end of the outer cylinder, a bearing seat is arranged on the installation support frame, and the drive shaft in the center of the driving wheel is rotatably arranged on the bearing seat, and the The outer cylinder is also provided with an air outlet 25, and the air outlet of the air outlet is provided with a porous sponge. A shelf is located above the base plate.

One side of the opening and closing door is connected to one side of the chassis frame by a hinge chain 6, a handle 5 is provided on the opening and closing door, and a control console 3 is also included, and the control console is arranged on the chassis frame. Above, the control console can control the rotary drive motor 9 to drive and rotate at a non-uniform speed.

The present invention provides a multi-stage screening device capable of screening good and bad tea leaves, which can not only realize multi-stage classification of tea leaves at one time, but also use a hot air drying mechanism to perform auxiliary light drying during classification treatment. Drying and ventilation treatment can prevent adverse effects on tea leaves during grading and ensure the quality of tea leaves. Driven and rotated by the rotary drive mechanism, the multi-stage classification of tea leaves can be quickly realized. The invention has a simple structure and can quickly realize the classification treatment of batches of tea leaves.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The equivalent replacement or modification of the solution and its inventive concept shall be included within the protection scope of the present invention.

Claims (10)

1. A multi-stage screening device capable of screening superior and inferior tea leaves comprises a machine box frame (1), a bottom plate seat (2), a hot air drying mechanism, a multi-stage screening barrel mechanism (8), a rotary driving mechanism and an opening and closing door (4), wherein the bottom plate seat is fixedly arranged at the bottom of the machine box frame (1), the hot air drying mechanism is arranged on the bottom plate seat, the multi-stage screening barrel mechanism is characterized in that the multi-stage screening barrel mechanism (8) positioned above the hot air drying mechanism is arranged in the machine box frame, the axis of the multi-stage screening assembly in the multi-stage screening barrel mechanism (8) is horizontally rotatable, the multi-stage screening assembly is driven to rotate by the rotary driving mechanism, the opening and closing door capable of being opened and closed is arranged at one side of the machine box frame, the tea leaves to be screened can be placed in a screening cavity (34) at the radial centermost position of the multi-stage screening barrel mechanism after the opening and closing door is opened and closed, so as to utilize the multistage screening section of thick bamboo mechanism carries out multistage screening to this tealeaves.

2. The multi-stage screening apparatus for screening tea leaves of good or bad quality as claimed in claim 1, wherein: the multi-stage screening barrel mechanism (8) comprises an outer barrel body and a multi-stage screening component arranged in the multi-stage screening barrel mechanism, the multi-stage screening component comprises an inner screening net barrel (29), an intermediate screening net barrel (28), an outer screening net barrel (27) and a rotary driving end cover (26), wherein the rotary driving end cover is of a disc structure, the center of the rotary driving end cover is in driving connection with the output end of the rotary driving mechanism, the outer screening net barrel (27) coaxially arranged with the rotary driving end cover is fixedly arranged on the outermost periphery of the rotary driving end cover, the intermediate screening net barrel (28) coaxially and fixedly arranged on the rotary driving end cover (26) is arranged in the outer screening net barrel (27), the inner screening net barrel (29) coaxially and fixedly arranged on the rotary driving end cover (26) is arranged in the intermediate screening net barrel (28), and an outer screening cavity (36) is formed between the outer screening net barrel (27) and the outer barrel body, the cavity that constitutes between middle screening net section of thick bamboo (28) and the outer screening net section of thick bamboo (27) is middle screening chamber (37), the cavity that constitutes between interior screening net section of thick bamboo (29) and middle screening net section of thick bamboo (28) is interior screening chamber (35), outer screening chamber (36), middle screening chamber (37) and interior screening chamber (35) construct jointly and establish the multistage screening chamber that carries out the multistage sieve to tealeaves.

3. The multi-stage screening apparatus for screening tea leaves of good or bad quality as claimed in claim 2, wherein: the screening mesh diameter of interior screening net section of thick bamboo (29) is greater than the screening mesh diameter of middle screening net section of thick bamboo (28), the screening mesh diameter of middle screening net section of thick bamboo (28) is greater than the screening mesh diameter of outer screening net section of thick bamboo (27).

4. The multi-stage screening apparatus for screening tea leaves of good or bad quality as claimed in claim 2, wherein: the inboard of door (4) that opens and shuts still is connected and is provided with the sealed lid of lock (32), keeping away from of outer barrel rotatory actuating mechanism's one end an organic whole is provided with lock seat (33), the center of lock seat is provided with circular lock chamber, but the lock is connected with on the circular lock chamber the sealed lid of lock, the inboard of the sealed lid of lock is provided with the different just coaxial sealed snap ring (30) of arranging of a plurality of diameters, each sealed snap ring can seal the block in the tip of interior screening net section of thick bamboo (29), middle screening net section of thick bamboo (28), outer screening net section of thick bamboo (27).

5. The multi-stage screening apparatus for screening tea leaves of good or bad quality as claimed in claim 4, wherein: fixed cover is equipped with sealed lasso (38) on the inner wall in circular lock chamber, the periphery wall cover of the sealed lid of lock (32) is established in the sealed lasso, just sealed snap ring (30) with equal rotatable sealed setting between the tip of interior screening net section of thick bamboo (29), middle screening net section of thick bamboo (28), outer screening net section of thick bamboo (27).

6. The multistage screening apparatus for sifting tea leaves of good quality as set forth in claim 5, wherein: and a drying pipe (31) is arranged on the opening and closing door (4), and the end part of the drying pipe is fixedly connected with the center of the buckled sealing cover (32) so as to be communicated with the screening cavity (34).

7. The multi-stage screening apparatus for screening tea leaves of good or bad quality as claimed in claim 2, wherein: the hot air drying mechanism comprises a hot air inlet pipe (7), an air inlet controller (15), a hot air pipe (19), a heater (20), a fan (17), an air inlet cylinder (18) and a fan motor (14), wherein the fan motor (14) is fixed on the base plate seat, the fan motor and the fan motor are connected and provided with the air inlet cylinder, the air outlet end of the fan is connected to the heater, the output end of the heater is connected to the hot air inlet pipe (7) through the hot air pipe (19), the hot air inlet pipe (7) is connected to a drying pipe (31), and the hot air inlet pipe (7) and the hot air pipe are provided with the air inlet controller (15).

8. The multi-stage screening apparatus for screening tea leaves of good or bad quality as claimed in claim 2, wherein: the rotary driving mechanism comprises a rotary driving motor (9), a transmission belt (10) and a driving wheel (11), wherein the rotary driving motor is fixed at the top of the chassis frame, the output end of the rotary driving motor is connected to the driving wheel through the transmission belt, and a driving shaft at the center of the driving wheel is fixedly connected with the center of the rotary driving end cover (26).

9. The multi-stage screening apparatus for screening tea leaves of good or bad quality as claimed in claim 8, wherein: the end fixing of outer barrel is provided with erection bracing frame (12), the last bearing frame that is provided with of erection bracing frame, the drive shaft at drive wheel center can support the pivoted setting and be in on the bearing frame, just still be provided with air outlet cylinder (25) on the outer barrel, air outlet department of air outlet cylinder is provided with porous sponge, outer barrel adopts support frame (24) to install on baffle frame (13) on the machine case frame, and this baffle frame is located the top of bed plate.

10. The multi-stage screening apparatus for screening tea leaves of good or bad quality as claimed in claim 2, wherein: one side of opening and shutting door adopts articulated chain (6) to be connected to one side of quick-witted case frame, be provided with handle (5) on the opening and shutting door, and still include control operation panel (3), control operation panel sets up on the quick-witted case frame, control operation panel can control rotatory driving motor (9) drive rotation at the non-uniform velocity.

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