Tea residue screening device

Abstract

The utility model discloses a tea residue screening device, and relates to the technical field of tea processing, the tea residue screening device comprises a feed hopper fixedly communicated with the top of a screening box, a vibration screening mechanism and a feed speed adjusting mechanism, the bottom of the screening box is provided with a discharge port, and two supporting legs are symmetrically welded on the outer walls of the two sides of the screening box. The feeding speed adjusting mechanism comprises a sliding groove formed in the top of the screening box, an adjusting screw rotationally installed in the sliding groove, an L-shaped connecting rod connected to the adjusting screw in a threaded mode and a baffle fixedly connected to the outer wall of one end of the L-shaped connecting rod and matched with the feeding hopper. The feeding speed adjusting mechanism is arranged, the size of the opening in the bottom of the feeding hopper can be flexibly adjusted, and therefore the feeding speed can be flexibly adjusted and controlled according to the tea screening condition, the situation that a large amount of tea is accumulated in a short time due to the fact that the feeding speed is too high in the screening process is avoided, and then the screening efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tea processing, in particular to a screening device for tea residues. Background Art

[0002] At present, a large amount of fine tea residues are produced during the tea processing process. These fine tea residues are mixed in the tea leaves and are difficult to be effectively removed manually. Usually, a vibration screening machine is needed to quickly remove them. However, although the existing screening device can meet some basic usage requirements, it still has the following shortcomings in actual use:

[0003] First, the feeding speed cannot be flexibly adjusted according to the tea screening conditions, which results in a large amount of tea accumulation in a short period of time due to excessive feeding speed during the screening process, thereby reducing the screening efficiency;

[0004] Secondly, the screen installed inside is not convenient for quick disassembly and assembly, and thus it is not convenient to flexibly replace the screens with different screen holes according to different screening requirements. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a screening device for tea residues.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tea residue screening device comprises a feed hopper fixedly connected to the top of a screening box, a vibrating screening mechanism and a feed speed regulating mechanism, a discharge port is provided at the bottom of the screening box, and two supporting legs are symmetrically welded to the outer walls of both sides of the screening box;

[0008] The feed speed adjustment mechanism includes a chute opened on the top of the screening box, an adjustment screw rotatably installed in the chute, an L-shaped connecting rod threadedly connected to the adjusting screw, and a baffle fixedly connected to the outer wall of one end of the L-shaped connecting rod and adapted to the feed hopper;

[0009] The vibration screening mechanism comprises an elastic connection component, an inclined mounting frame arranged in the screening box, a screening mesh plate inserted in the mounting frame, and a vibration motor fixedly mounted on the top outer wall of the mounting frame.

[0010] Preferably, the outer wall of the L-shaped connecting rod is slidably connected to the inner wall of the sliding groove, and a hand wheel is fixedly connected to the outer wall of one end of the adjusting screw.

[0011] Preferably, a slideway is provided at a lower portion of one side of the feed hopper, and an outer wall of the baffle is slidably connected to an inner wall of the slideway.

[0012] Preferably, the elastic connection assembly includes a first connecting frame and a second connecting frame welded to the inner walls on both sides of the screening box in sequence, two first spring telescopic rods fixedly connected between the bottom of the mounting frame and the top of the first connecting frame, and two second spring telescopic rods fixedly connected between the bottom of the mounting frame and the top of the second connecting frame.

[0013] Preferably, slots are provided on both inner walls of the mounting frame, and both outer walls of the screening mesh plate are fixedly connected with inserting strips, and the outer walls of the two inserting strips are slidably connected to the inner walls of the two slots respectively.

[0014] Preferably, butterfly locking screws are threadedly connected to the lower parts of both sides of the mounting frame, positioning grooves are opened at the lower parts of both sides of the screening mesh plate, and two butterfly locking screws are threadedly connected to the two positioning grooves respectively.

[0015] Preferably, a channel is opened at the lower part of one side of the screening box, the bottom of the mounting frame passes through the channel, and a material guiding inclined frame located below the channel is welded to the lower outer wall of one side of the screening box.

[0016] The beneficial effects of the utility model are:

[0017] 1. A feeding speed adjustment mechanism is provided to flexibly adjust the size of the bottom opening of the feeding hopper, so that the feeding speed can be flexibly adjusted according to the screening conditions of the tea leaves, avoiding the accumulation of a large amount of tea leaves in a short period of time due to excessive feeding speed during the screening process, thereby helping to improve the screening efficiency;

[0018] 2. The installation method of the screening mesh plate of the utility model is convenient for quick disassembly and assembly, and thus convenient for flexible replacement of screens with different screen holes according to different screening requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0021] Figure 3 It is a cross-sectional structural schematic diagram of the feed hopper in the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model when the screening mesh plate is removed;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure after the screening mesh plate in the utility model is removed;

[0024] Figure 6 For this utility model Figure 4Schematic diagram of the three-dimensional enlarged structure of part A in the middle.

[0025] In the figure: 1. screening box; 2. feed hopper; 3. adjusting screw; 4. L-shaped connecting rod; 5. baffle; 6. hand wheel; 7. mounting frame; 8. screening mesh plate; 9. vibration motor; 10. first connecting frame; 11. first spring telescopic rod; 12. second connecting frame; 13. second spring telescopic rod; 14. slot; 15. insert; 16. butterfly locking screw; 17. positioning slot; 18. material guide inclined frame. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1, reference Figure 1-2 and Figure 4-6 , a screening device for tea residues, comprising a vibrating screening mechanism and a feed hopper 2 fixedly connected to the top of a screening box 1;

[0028] Furthermore, a discharge port is provided at the bottom of the screening box 1, and two supporting legs are symmetrically welded to the outer walls of both sides of the screening box 1;

[0029] In this embodiment, the vibrating screening mechanism includes an elastic connection assembly, an inclined mounting frame 7 disposed in the screening box 1, a screening mesh plate 8 plugged into the mounting frame 7, and a vibrating motor 9 fixedly mounted on the top outer wall of the mounting frame 7;

[0030] Further, the elastic connection assembly includes a first connection frame 10 and a second connection frame 12 welded to the inner walls of both sides of the screening box 1 in sequence, two first spring telescopic rods 11 fixedly connected between the bottom of the mounting frame 7 and the top of the first connection frame 10, and two second spring telescopic rods 13 fixedly connected between the bottom of the mounting frame 7 and the top of the second connection frame 12;

[0031] Furthermore, slots 14 are provided on the inner walls of both sides of the mounting frame 7, and inserts 15 are fixedly connected to the outer walls of both sides of the screening mesh plate 8, and the outer walls of the two inserts 15 are slidably connected to the inner walls of the two slots 14 respectively;

[0032] Furthermore, butterfly locking screws 16 are threadedly connected to the lower parts of both sides of the mounting frame 7, and positioning grooves 17 are provided at the lower parts of both sides of the screening mesh plate 8, and the two butterfly locking screws 16 are threadedly connected to the two positioning grooves 17 respectively;

[0033] Furthermore, a channel is provided at the lower part of one side of the screening box 1, the bottom of the mounting frame 7 passes through the channel, and a material guide inclined frame 18 located below the channel is welded to the lower outer wall of one side of the screening box 1;

[0034] The screening mesh plate 8 in this embodiment is convenient for quick disassembly and assembly, and thus convenient for flexible replacement of screens with different screen holes according to different screening requirements.

[0035] Example 2, reference Figure 2-3 This embodiment is optimized on the basis of the embodiment 1, specifically: a screening device for tea residues, further comprising a feed speed regulating mechanism, the feed speed regulating mechanism comprising:

[0036] A chute and an adjusting screw 3, wherein the chute is provided at the top of the screening box 1, the adjusting screw 3 is rotatably installed in the chute, and a hand wheel 6 is fixedly connected to the outer wall of one end of the adjusting screw 3;

[0037] An L-shaped connecting rod 4 is threadedly connected to the adjusting screw 3, and an outer wall of the L-shaped connecting rod 4 is slidably connected to an inner wall of the sliding groove;

[0038] The baffle plate 5 is fixedly connected to the outer wall of one end of the L-shaped connecting rod 4 and is adapted to the feed hopper 2. A slideway is provided at the lower part of one side of the feed hopper 2, and the outer wall of the baffle plate 5 is slidably connected to the inner wall of the slideway;

[0039] During the specific implementation of this embodiment: the adjusting screw 3 is driven to rotate by the hand wheel 6, and then under the limit of the slide groove, the L-shaped connecting rod 4 threadedly connected to the adjusting screw 3 will drive the baffle 5 to move, so that the size of the bottom opening of the feed hopper 2 can be flexibly adjusted, so that the feeding speed can be flexibly adjusted according to the tea screening conditions, avoiding the accumulation of a large amount of tea in a short period of time due to excessive feeding speed during the screening process, thereby helping to improve the screening efficiency.

[0040] The working principle of the utility model is as follows: first, tea leaves mixed with fine residues are poured from the feed hopper 2 into the screening box 1, and then the tea leaves are vibrated and screened by the cooperation of the vibration motor 9 and the screening mesh plate 8, so that the fine residues in the tea leaves are screened out and discharged from the discharge port at the bottom of the screening box 1, and the screened tea leaves are discharged from the guide inclined frame 18;

[0041] Secondly, the adjusting screw 3 is driven to rotate by the hand wheel 6, and then under the limit of the slide slot, the L-shaped connecting rod 4 threadedly connected to the adjusting screw 3 drives the baffle 5 to move, so that the size of the bottom opening of the feed hopper 2 can be flexibly adjusted, so that the feeding speed can be flexibly adjusted according to the tea screening conditions, which helps to improve the screening efficiency;

[0042] Finally, when the screening mesh panel 8 needs to be replaced, the two butterfly locking screws 16 are screwed down, the screening mesh panel 8 is then pulled out, the new screening mesh panel 8 is inserted into the mounting frame 7, and then the two butterfly locking screws 16 are screwed into the two positioning grooves 17 to complete the locking, thus completing the entire replacement process of the screening mesh panel 8.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screening device for tea residues, comprising a feed hopper (2) fixedly connected to the top of a screening box (1), a discharge port being provided at the bottom of the screening box (1), and two supporting legs being symmetrically welded to the outer walls of both sides of the screening box (1), characterized in that: It also includes a vibrating screening mechanism and a feeding speed regulating mechanism; The feed speed adjustment mechanism comprises a chute provided at the top of the screening box (1), an adjustment screw (3) rotatably mounted in the chute, an L-shaped connecting rod (4) threadedly connected to the adjustment screw (3), and a baffle (5) fixedly connected to the outer wall of one end of the L-shaped connecting rod (4) and adapted to the feed hopper (2); The vibrating screening mechanism comprises an elastic connection assembly, a mounting frame (7) arranged in a slanting manner in a screening box (1), a screening mesh plate (8) inserted in the mounting frame (7), and a vibrating motor (9) fixedly mounted on the top outer wall of the mounting frame (7).

2. A tea residue screening device according to claim 1, characterized in that: The outer wall of the L-shaped connecting rod (4) is slidably connected to the inner wall of the sliding groove, and the outer wall of one end of the adjusting screw rod (3) is fixedly connected to a hand wheel (6).

3. A tea residue screening device according to claim 1, characterized in that: A slideway is provided at the lower part of one side of the feed hopper (2), and the outer wall of the baffle (5) is slidably connected to the inner wall of the slideway.

4. A tea residue screening device according to claim 1, characterized in that: The elastic connection assembly comprises a first connection frame (10) and a second connection frame (12) which are welded to the inner walls of both sides of the screening box (1) in sequence, two first spring telescopic rods (11) which are fixedly connected between the bottom of the mounting frame (7) and the top of the first connection frame (10), and two second spring telescopic rods (13) which are fixedly connected between the bottom of the mounting frame (7) and the top of the second connection frame (12).

5. The tea residue screening device according to claim 1, characterized in that: The inner walls on both sides of the installation frame (7) are provided with slots (14), the outer walls on both sides of the screening mesh plate (8) are fixedly connected with inserting strips (15), and the outer walls of the two inserting strips (15) are respectively slidably connected to the inner walls of the two slots (14).

6. A tea residue screening device according to claim 1, characterized in that: The lower parts of both sides of the installation frame (7) are threadedly connected with butterfly locking screws (16), the lower parts of both sides of the screening mesh plate (8) are provided with positioning grooves (17), and the two butterfly locking screws (16) are respectively threadedly connected with the two positioning grooves (17).

7. A tea residue screening device according to claim 1, characterized in that: A channel is provided at the lower part of one side of the screening box (1), the bottom of the mounting frame (7) passes through the channel, and a material guiding inclined frame (18) located below the channel is welded to the lower outer wall of one side of the screening box (1).

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