Multi-stage screening mechanism of tea sorting machine

Abstract

The utility model discloses a multi-stage screening mechanism of a tea sorting machine, which belongs to the technical field of screening and comprises a mounting frame, a screening box is mounted on the mounting frame, a fixing plate is arranged on one side of the mounting frame, a motor is arranged on the fixing plate, a driving end of the motor is connected with a fixing shaft, and the fixing shaft is connected with the screening box. An open groove is formed in the side, away from the motor, of the screening box body, a guide end is arranged on the open groove, the screening box body is provided with a sealing cover, a first-stage screening structure and a second-stage screening structure are sequentially installed in the screening box body, and the second-stage screening structure and a fixing shaft are arranged in a clamped mode; the second-stage screening structure is rotationally connected with the first-stage screening structure, screening holes are formed in the first-stage screening structure and the second-stage screening structure, and a connecting structure connected with the first-stage screening structure in a clamped mode is arranged on the sealing cover. And the multi-stage screening mechanism can meet different tea leaf sorting requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screening, especially to a multistage screening mechanism of tea sorting machine. BACKGROUND

[0002] With the improvement of people's living standards, the demand for tea is also getting higher and higher, and the tea screening device can quickly screen tea to get various grades of tea. After processing through multiple steps, fine tea powder and dry tea leaves of different sizes will appear, which need to be screened.

[0003] The existing tea sorting machine mostly adopts single-layer screen or simple vibrating screen structure, which has the problems of low sorting efficiency and insufficient precision. Although some multistage screening equipment adopts multiple layers of screen, it has complex structure, large space occupation, and the screen is easy to block, which is difficult to adapt to the sorting needs of different tea varieties. Therefore, there is an urgent need for a high-efficiency, flexible and anti-blocking multistage screening mechanism. UTILITY MODEL CONTENT

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a multistage screening mechanism with high work efficiency, reduced blocking, and the ability to adapt to different tea sorting needs.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a multistage screening mechanism of tea sorting machine, which comprises a mounting frame, a screening box body is installed on the mounting frame, a fixed plate is arranged on one side of the mounting frame, a motor is arranged on the fixed plate, a fixed shaft is connected to the driving end of the motor, the fixed shaft is rotatably connected to the screening box body, a slot is formed on the side of the screening box body away from the motor, a guide end is arranged on the slot, and a sealing cover is arranged on the screening box body through the guide end.

[0007] A first-stage screening structure and a second-stage screening structure are sequentially installed inside the screening box body, the second-stage screening structure is snap-fitted with the fixed shaft, so that the rotation of the fixed shaft drives the rotation of the second-stage screening structure, the first-stage screening structure is sleeved inside the second-stage screening structure, the second-stage screening structure is rotatably connected to the first-stage screening structure, screening holes are formed in the first-stage screening structure and the second-stage screening structure, the two groups of screening holes gradually decrease from inside to outside, and a connecting structure is arranged on the sealing cover and snap-fitted with the first-stage screening structure.

[0008] The utility model discloses preferably technical scheme lies in, the connecting structure includes setting on the handle of sealing cover, the connecting shaft of handle passes through the setting of sealing cover has the clamping seat, the clamping seat is away from the even distribution of the clamping end of sealing cover one end, the first screening structure is close to the one side setting of sealing cover has the connecting end, the even distribution of the limit end of connecting end inner wall, and the connecting groove that forms with the clamping end adaptation is formed between multiple limit ends.

[0009] The utility model discloses preferably technical scheme lies in, the inner wall of two screening structures is provided with arc chute, and the arc chute is adapted with the first screening structure, and the first screening structure is connected with two screening structures through the arc chute.

[0010] The utility model discloses preferably technical scheme lies in, be provided with the pivot on two screening structures, and the even distribution of multiple stirring rods has on the pivot, and multiple stirring rods are connected with scraper far from the pivot one end, and the outer wall of scraper and first screening structure is evenly provided with anti -blocking brush.

[0011] The utility model discloses preferably technical scheme lies in, and the guide groove is seted up on the one side close to fixed axle of two screening structures, and the guide groove is provided with the clamping plate in, and the fixed axle is provided with the clamping groove far from the clamping plate one end, and the clamping groove is adapted with clamping plate.

[0012] The utility model discloses preferably technical scheme lies in, and the discharge gate is seted up on the bottom of screening box body, and the removable baffle plate is installed on the discharge gate.

[0013] The utility model discloses preferably technical scheme lies in, and the guide plate is seted up on the one side symmetry of mounting bracket, and the connecting plate is seted up on the both sides of screening box body, and the connecting plate is fixedly connected with guide plate.

[0014] The utility model discloses preferably technical scheme lies in, and the guide piece is seted up on the one side of screening box body, and the guide piece is adapted with sealing cover, and the bolt is connected between guide piece and sealing cover.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses preferably technical scheme lies in, and the discharge gate is seted up on the bottom of screening box body, and the removable baffle plate is installed on the discharge gate. ACCURACY OF DRAWINGS

[0017] Figure 1is the multi-stage screening mechanism structure schematic view provided in the embodiment of the utility model;

[0018] Figure 2 is the multi-stage screening mechanism structure sectional view provided in the embodiment of the utility model;

[0019] Figure 3 is the connecting structure schematic view provided in the embodiment of the utility model; Figure 2 is the structure amplification schematic view of A place in the middle;

[0020] Figure 4 is the connecting structure schematic view provided in the embodiment of the utility model;

[0021] In the drawings, the component list represented by each mark is as follows:

[0022] 1, mounting frame;11, guide plate;12, fixed plate;13, fixed shaft;14, clamping groove;2, screening box body;21, connecting plate;22, guide;23, bolt;24, guide end;3, sealing cover;31, clamping seat;32, clamping end;4, motor;5, two-stage screening structure;51, arc-shaped sliding slot;52, rotating shaft;53, stirring rod;54, scraper;55, anti-blocking brush;56, guide slot;57, clamping plate;6, one-stage screening structure;61, connecting end;62, limiting end;7, screening hole;8, discharge port;9, handle. Specific embodiments

[0023] The technical scheme of the utility model will be further illustrated by specific embodiments in combination with the drawings.

[0024] A kind of multi-stage screening mechanism of tea sorting machine, including mounting frame 1, the screening box body 2 is installed on the mounting frame 1, the fixed plate 12 is provided in one side of the mounting frame 1, the motor 4 is provided on the fixed plate 12, the driving end of the motor 4 is connected with fixed shaft 13, the fixed shaft 13 is rotatably connected with screening box body 2, the slot is opened in the side away from motor 4 of the screening box body 2, the guide end 24 is provided on the slot, the sealing cover 3 is provided with the screening box body 2 by guide end 24;

[0025] The first screening structure 6 and the second screening structure 5 are sequentially arranged in the screening box 2, the second screening structure 5 is in engagement with the fixed shaft 13, so that the fixed shaft 13 drives the second screening structure 5 to rotate, the first screening structure 6 is arranged in the second screening structure 5, the second screening structure 5 is rotatably connected with the first screening structure 6, the first screening structure 6 and the second screening structure 5 are both provided with screening holes 7, the two groups of screening holes 7 are sequentially reduced from inside to outside, the sealing cover 3 is provided with a connecting structure in engagement with the first screening structure 6, the bottom of the screening box 2 is provided with a discharge port 8, and the discharge port 8 is provided with a detachable baffle plate.

[0026] The second screening structure 5 is provided with a rotating shaft 52, a plurality of groups of stirring rods 53 are uniformly distributed on the rotating shaft 52, the stirring rods 53 are connected with scraping plates 54 away from the rotating shaft 52, and the scraping plates 54 and the outer wall of the first screening structure 6 are both provided with anti-blocking brushes 55.

[0027] When working, the sealing cover 3 is opened, the second screening structure 5 is arranged in the screening box 2, the tea leaves are poured into the first screening structure 6, then the first screening structure 6 is arranged in the second screening structure 5, the sealing cover 3 is closed, the motor 4 is started, the motor 4 drives the fixed shaft 13 to rotate, the fixed shaft 13 drives the second screening structure 5 to rotate, the second screening structure 5 drives the rotating shaft 52 to rotate, the rotating shaft 52 drives the stirring rods 53 to stir and separate the tea leaves in the first screening structure 6, so that the tea leaves are coarsely screened under the action of the screening holes 7 of the first screening structure 6, the tea leaves after coarse screening enter the second screening structure 5 for fine screening, so that multi-stage screening of the tea leaves is completed, the screened tea leaves are discharged through the discharge port 8 at the bottom of the screening box 2, the structure is simple and the screening efficiency is high, the anti-blocking brushes 55 clean the screening holes 7 under the action of the rotating shaft 52 and the scraping plates 54 during the screening process, so that the screening holes 7 are prevented from being blocked, the efficiency of the tea screening is improved, the quality and effect of the tea screening are ensured, and the screening requirements of different tea varieties can be met by replacing the screening structures with different aperture screening holes 7 and adjusting the rotating speed of the motor 4.

[0028] As a possible implementation manner of the scheme, preferably, the connecting structure comprises a handle 9 arranged on the sealing cover 3, a connecting shaft of the handle 9 is provided with a clamping seat 31 penetrating through the sealing cover 3, the clamping seat 31 is uniformly provided with clamping ends 32 away from the sealing cover 3, the first screening structure 6 is provided with a connecting end 61 close to the sealing cover 3, the inner wall of the connecting end 61 is uniformly provided with limiting ends 62, and the limiting ends 62 form connecting grooves matched with the clamping ends 32.

[0029] When the sealing cover 3 is installed, the clamping end 32 on the clamping seat 31 is passed through the connecting groove, and when the sealing cover 3 is adapted to abut against the guide end 24, the handle 9 is rotated to drive the clamping seat 31 to rotate, and the clamping end 32 is driven to rotate to the position of being clamped with the limiting end 62, so that the movement of the sealing cover 3 towards the center of the fixed shaft 13 is limited, the position limitation of the primary screening structure 6 is completed, and the subsequent disassembly, cleaning and maintenance of the primary screening structure 6 are facilitated.

[0030] As a possible implementation manner of the present scheme, preferably, an arc-shaped sliding groove 51 is arranged on the inner wall of the secondary screening structure 5, the arc-shaped sliding groove 51 is adapted to the primary screening structure 6, and the primary screening structure 6 is slidably connected with the secondary screening structure 5 through the arc-shaped sliding groove 51.

[0031] Through the cooperation of the arc-shaped sliding groove 51, the limiting end 62 and the clamping end 32, the sliding connection of the secondary screening structure 5 and the primary screening structure 6 is smoother, so that the secondary screening structure 5 is rotated while the tea leaves in the primary screening structure 6 are stirred by the stirring rod 53 arranged inside, and the screening efficiency is improved.

[0032] As a possible implementation manner of the present scheme, preferably, a guide groove 56 is arranged on the side of the secondary screening structure 5 close to the fixed shaft 13, a clamping plate 57 is arranged in the guide groove 56, a clamping groove 14 is arranged on the end of the fixed shaft 13 close to the clamping plate 57, and the clamping groove 14 is adapted to the clamping plate 57.

[0033] When the secondary screening structure 5 is installed, one end of the guide groove 56 is passed through the slot, the clamping plate 57 is installed corresponding to the clamping groove 14 on the fixed shaft 13, the installation of the secondary screening structure 5 is realized, and through the arrangement of the clamping structure, the fixed shaft 13 can drive the secondary screening structure 5 to rotate when the fixed shaft 13 rotates. In cooperation with the arrangement of the stirring rod 53, the screening of tea leaves is realized, and the efficiency of tea leaf screening is improved.

[0034] As a possible implementation manner of the present scheme, preferably, a guide plate 11 is symmetrically arranged on one side of the mounting frame 1, a connecting plate 21 is correspondingly arranged on both sides of the screening box body 2, the connecting plate 21 is fixedly connected with the guide plate 11, two groups of guide pieces 22 are arranged on one side of the screening box body 2, the guide pieces 22 are adapted to the sealing cover 3, and a bolt 23 is connected between the guide piece 22 and the sealing cover 3.

[0035] Through the setting of the connecting plate 21 and the guide plate 11, the screening box 2 is fixed on the mounting frame 1, the stability of the screening box 2 in the tea screening process is guaranteed, the sealing cover 3 is installed on the corresponding guide 22, the position of the sealing cover 3 is fixed through the setting of the bolt 23, and the stability of the primary screening structure 6 is improved through the cooperation of the clamping end 32 on the sealing cover 3 and the limiting end 62.

[0036] The utility model is described through preferred embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. The utility model is not limited by the specific embodiments disclosed herein, and other embodiments falling within the claims of the present application all belong to the protection scope of the utility model.

Claims

1. A multi-stage screening mechanism for a tea sorting machine, characterized in that: Includes a mounting frame (1), on which a screening box (2) is mounted. A fixing plate (12) is provided on one side of the mounting frame (1), and a motor (4) is provided on the fixing plate (12). The drive end of the motor (4) is connected to a fixing shaft (13), which is rotatably connected to the screening box (2). A slot is provided on the side of the screening box (2) away from the motor (4), and a guide end (24) is provided on the slot. A sealing cover (3) is provided on the screening box (2) through the guide end (24). The screening box (2) is equipped with a primary screening structure (6) and a secondary screening structure (5) in sequence. The secondary screening structure (5) is engaged with a fixed shaft (13), so that the rotation of the fixed shaft (13) drives the secondary screening structure (5) to rotate. The primary screening structure (6) is sleeved inside the secondary screening structure (5). The secondary screening structure (5) is rotatably connected to the primary screening structure (6). Both the primary screening structure (6) and the secondary screening structure (5) are provided with screening holes (7). The two sets of screening holes (7) decrease in size from the inside to the outside. The sealing cover (3) is provided with a connection structure that is engaged with the primary screening structure (6).

2. The multi-stage screening mechanism of a tea sorting machine according to claim 1, characterized in that: The connection structure includes a handle (9) provided on the sealing cover (3). The connecting shaft of the handle (9) passes through the sealing cover (3) and is provided with a snap-fit ​​seat (31). The snap-fit ​​seat (31) has snap-fit ​​ends (32) evenly distributed on the end away from the sealing cover (3). The primary screening structure (6) is provided with a connection end (61) on the side close to the sealing cover (3). The inner wall of the connection end (61) is evenly distributed with limit ends (62). Multiple sets of limit ends (62) form a connection groove that matches the snap-fit ​​end (32).

3. The multi-stage screening mechanism of a tea sorting machine according to claim 1, characterized in that: The inner wall of the secondary screening structure (5) is provided with an arc-shaped sliding groove (51), which is adapted to the primary screening structure (6). The primary screening structure (6) is slidably connected to the secondary screening structure (5) through the arc-shaped sliding groove (51).

4. The multi-stage screening mechanism of a tea sorting machine according to claim 1, characterized in that: The secondary screening structure (5) is provided with a rotating shaft (52), and multiple sets of stirring rods (53) are evenly distributed on the rotating shaft (52). The ends of the multiple sets of stirring rods (53) away from the rotating shaft (52) are connected to scrapers (54). The scrapers (54) and the outer wall of the primary screening structure (6) are both provided with anti-clogging brushes (55).

5. The multi-stage screening mechanism of a tea sorting machine according to claim 1, characterized in that: The secondary screening structure (5) has a guide groove (56) on the side near the fixed shaft (13). A locking plate (57) is provided inside the guide groove (56). A locking groove (14) is provided at the end of the fixed shaft (13) near the locking plate (57). The locking groove (14) is adapted to the locking plate (57).

6. The multi-stage screening mechanism of a tea sorting machine according to claim 1, characterized in that: The screening box (2) has a discharge port (8) at the bottom, and a detachable baffle plate is installed on the discharge port (8).

7. The multi-stage screening mechanism of a tea sorting machine according to claim 1, characterized in that: The mounting frame (1) is symmetrically provided with guide plates (11) on one side, and the screening box (2) is provided with connecting plates (21) on both sides. The connecting plates (21) are fixedly connected to the guide plates (11).

8. The multi-stage screening mechanism of a tea sorting machine according to claim 1, characterized in that: Two sets of guides (22) are provided on one side of the screening box (2). The two sets of guides (22) are adapted to the sealing cover (3). Bolts (23) connect the guides (22) and the sealing cover (3).

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