Electrostatic tea stalk sorting machine

Abstract

The utility model relates to the technical field of tea processing equipment, in particular to an electrostatic type tea stalk sorting machine which comprises a machine frame, a conveying machine and a plurality of electrostatic rollers, the conveying machine is arranged on the machine frame, two rows of limiting frames arranged at intervals are fixedly installed on the top of the machine frame, the number of the electrostatic rollers is multiple, and connecting rods are jointly and rotationally installed at the two ends of the electrostatic rollers. A sliding block is installed on each limiting frame in a sliding mode, the two ends of a rotating shaft of each electrostatic roller are correspondingly and rotationally connected to the corresponding sliding block, lifting devices are arranged on the two symmetrical limiting frames, and the two connecting rods are connected to the two lifting devices respectively. The connecting rod is rotationally connected with the output ends of the electrostatic rollers, so that the electrostatic rollers and the connecting rod form a whole, the limiting frames are further arranged to limit the moving direction of the electrostatic rollers, and the two lifting devices are arranged on the limiting frames. And the plurality of electrostatic rollers can synchronously move only by manually controlling one lifting device, so that the operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tea processing equipment, in particular to an electrostatic tea stem picking machine. Background Art

[0002] During the tea production and processing process, it is necessary to remove impurities such as tea stems and plastics contained in the tea raw materials to retain the effective tea ingredients. For removing impurities such as tea stems, electrostatic stem pickers are widely used. The working principle of the electrostatic stem picker is that when the tea leaves pass between the electrode roller and the distribution barrel, they are polarized by the electric field. Due to the different moisture content of the tea leaves and tea stems, the degree of polarization is different, and therefore the strength of static electricity attraction is different. By setting a specific electrostatic intensity, the tea stems can be picked out from the tea leaves, thereby achieving the purpose of separating the tea leaves from the tea stems.

[0003] In order to improve the quality and efficiency of tea stem picking, the existing electrostatic stem picking machines are equipped with multiple electrostatic rollers arranged side by side at intervals to rotate, and the multiple electrostatic rollers are energized to generate static electricity in order to pick up the tea stems. Each electrostatic roller is equipped with a lifting and adjustment device to adjust the distance between the electrostatic roller and the bottom conveyor to ensure the adsorption effect of the electrostatic roller on the tea stems.

[0004] In the structure of the above-mentioned electrostatic stem picking machine, each time the distance between the electrostatic roller and the bottom conveyor is adjusted, the screws on both sides of the electrostatic roller need to be rotated one by one to adjust the height of the electrostatic roller. However, multiple electrostatic rollers need to be adjusted one by one, which not only makes the manual operation cumbersome and inefficient, but also cannot ensure that the distance between each electrostatic roller and the conveyor is consistent, affecting the quality and efficiency of the stem picking operation.

[0005] To this end, an electrostatic tea stem sorting machine is proposed, which can synchronously adjust multiple electrostatic rollers by rotating only one screw. Utility Model Content

[0006] The purpose of the present utility model is to provide an electrostatic tea stem picking machine, in which a plurality of electrostatic rollers are connected into a whole by two connecting rods, and two lifting devices are provided to drive the connecting rods to move in the vertical direction. The plurality of electrostatic rollers can be adjusted manually by manually operating only one of the lifting devices, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] An electrostatic tea stem picking machine includes a frame, a conveyor, and an electrostatic roller. The conveyor is arranged on the frame. Two rows of spaced-apart limit frames are fixedly installed on the top of the frame. There are multiple electrostatic rollers. Both ends of the multiple electrostatic rollers are jointly rotatably installed with connecting rods. Each of the limit frames is slidably installed with a sliding block. Both ends of the rotating shaft of each electrostatic roller are correspondingly connected to each sliding block. Two symmetrical limit frames are provided with lifting devices, and the two connecting rods are respectively connected to the two lifting devices.

[0009] In a further solution, the lifting device includes: a screw and a top block, wherein the top block is fixedly mounted on the top side wall of the limiting frame, the screw is threadedly mounted on the top block, and the bottom of the screw is rotatably connected to the sliding block.

[0010] According to a further solution, a plurality of mounting grooves are spaced apart at the top of the connecting rod, a mounting frame is placed in the mounting groove, a scraper plate and a baffle plate are fixedly mounted on the mounting frame, a limiting mechanism for limiting the mounting frame is also provided on the top of the connecting rod, a material receiving trough is fixedly mounted on the top of the frame, and the material receiving trough is located directly below the baffle plate and the scraper plate.

[0011] In a further solution, the limiting mechanism includes a fixed block, a limiting spring, and a limiting plate. The fixed block is fixedly installed on the top wall of the connecting rod, the limiting spring is fixedly connected to the side wall of the fixed block, and the limiting plate is fixedly connected to the end of the limiting spring away from the fixed block.

[0012] In a further solution, support angles are provided at the bottom of the frame, and shock-absorbing springs are provided on the support feet.

[0013] In a further solution, a mounting plate is fixedly mounted on the side wall of one of the connecting rods, a motor is fixedly mounted on the mounting plate, and an output end of the motor is connected to the rotating shafts of a plurality of side-by-side electrostatic rollers via a synchronous chain.

[0014] The present invention and the prior art have the following beneficial effects:

[0015] 1. A connecting rod is provided to be rotatably connected to the output ends of the multiple electrostatic rollers so that the multiple electrostatic rollers and the connecting rod form a whole. A plurality of limit frames are also provided to limit the moving directions of the multiple electrostatic rollers. Two lifting devices are provided on the limit frames. Only one lifting device needs to be manually operated to make the multiple electrostatic rollers move synchronously, which is more convenient to operate.

[0016] 2. Fix the baffle plate and scraper plate on the mounting frame, open mounting slots on the two connecting rods, and place the mounting frame into the mounting slots. Regular cleaning is required. At this time, manually pull the limit plate to compress the limit spring to release the limiting effect on the mounting frame. The mounting frame can be taken out without using screws to fasten it, making it easier to take out and install.

[0017] 3. Set up shock-absorbing springs to support the equipment so that the vibration generated by the equipment is reduced and the impact on the factory floor is minimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 for Figure 1 A magnified view of the structure at center A;

[0020] Figure 3 Schematic diagram of the limiting mechanism.

[0021] In the figure: 1. Frame; 2. Conveyor; 3. Electrostatic roller; 4. Connecting rod; 5. Limiting frame; 6. Screw; 7. Mounting plate; 8. Motor; 9. Synchronous belt; 10. Baffle plate; 11. Top block; 12. Mounting slot; 13. Material receiving slot; 14. Sliding block; 15. Mounting frame; 16. Scraper plate; 17. Support foot; 18. Shock-absorbing spring; 19. Limiting plate; 20. Limiting spring; 21. Fixing block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 3 The utility model provides an electrostatic tea stem picking machine, the technical solution is as follows:

[0024] An electrostatic tea stem picking machine includes a frame 1, a conveyor 2, and an electrostatic roller 3. The conveyor 2 is arranged on the frame 1. Two rows of spaced-apart limit frames 5 are fixedly installed on the top of the frame 1. There are multiple electrostatic rollers 3. Both ends of the multiple electrostatic rollers 3 are jointly rotatably installed with connecting rods 4. Each of the limit frames 5 is slidably installed with a sliding block 14. Both ends of the rotating shaft of each electrostatic roller 3 are correspondingly rotatably connected to each sliding block 14. Two symmetrical limit frames 5 are provided with lifting devices, and the two connecting rods 4 are respectively connected to the two lifting devices.

[0025] A mounting plate 7 is fixedly mounted on the side wall of one of the connecting rods 4, and a motor 8 is fixedly mounted on the mounting plate 7. The output end of the motor 8 is connected to the rotating shafts of multiple side-by-side electrostatic rollers 3 through a synchronous chain, and the motor 8 is also electrically connected to the controller.

[0026] A controller is also fixedly installed at the bottom of the frame 1. An electrostatic generator is provided in the controller. An electrostatic guide mechanism is provided in multiple electrostatic rollers 3. The electrostatic guide mechanism is electrically connected to the controller. The controller transmits static electricity to the guide mechanism in the electrostatic roller 3 so that the static electricity is evenly distributed on the surface of the electrostatic roller 3.

[0027] During operation, tea leaves are manually placed onto a vibrating conveyor 2 (note: the length of the conveyor 2 is not limited to that shown in the accompanying drawings). The conveyor 2, which uses a vibration mechanism, drives the tea leaves beneath multiple electrostatic rollers 3. These rollers 3 rotate synchronously with a motor 8. The rollers 3 contact the tea leaves and absorb impurities such as tea stems and plastic, freeing them from the leaves. Sometimes, when the type of tea being processed changes, or the amount of tea to be processed changes, the spacing between the rollers 3 and the conveyor 2 needs to be adjusted. In this case, the rollers 3 can be adjusted synchronously by manually controlling the vertical movement of two connecting rods 4 using a lifting device.

[0028] like Figure 2 As shown, the lifting device includes: a screw 6 and a top block 11. The top block 11 is fixedly mounted on the top side wall of the limit frame 5. The screw 6 is threadedly mounted on the top block 11, and the bottom of the screw 6 is rotatably connected to the sliding block 14. The screws 6 on the two lifting devices are connected by a synchronous belt 9. Manual rotation of only one of the screws 6 is required to drive the screw 6 on the other side to rotate. Since the screw 6 is threadedly connected to the top block 11, the sliding block 14 is rotatably connected to the screw 6 and is limited by the limit frame 5. The sliding block 14 can only move in the vertical direction. When the screw 6 rotates, the sliding block 14 follows the screw 6 to move in the vertical direction, and then the electrostatic roller 3 and the connection move in the vertical direction, so that the entire device moves synchronously, and there is no need for manual adjustment one by one.

[0029] like Figure 2 and Figure 3 As shown, a plurality of mounting grooves 12 are spaced apart at the top of the connecting rod 4, a mounting frame 15 is placed in the mounting groove 12, a scraper plate 16 and a baffle plate 10 are fixedly mounted on the mounting frame 15, and a limiting mechanism for limiting the mounting frame 15 is also provided on the top of the connecting rod 4, a material receiving trough 13 is fixedly mounted on the top of the frame 1, and the material receiving trough 13 is located directly below the baffle plate 10 and the scraper plate 16.

[0030] The scraper 16 is in close contact with the electrostatic roller 3. The surface of the electrostatic roller 3 and the scraper 16 move relative to each other. Impurities such as tea stems adsorbed on the electrostatic roller 3 are scraped off by the scraper 16 and fall into the receiving trough 13 below. From there, they are moved to the outside of the equipment. The retaining plate 10 is designed in an arc shape to block the tea stems and prevent impurities that fall off the electrostatic roller 3 from flying backwards.

[0031] The limiting mechanism includes a fixed block 21, a limiting spring 20, and a limiting plate 19. The fixed block 21 is fixedly installed on the top wall of the connecting rod 4, the limiting spring 20 is fixedly connected to the side wall of the fixed block 21, and the limiting plate 19 is fixedly connected to the end of the limiting spring 20 away from the fixed block 21.

[0032] The baffle plate 10 and the scraper plate 16 are in contact with impurities for a long time, and a lot of impurities will inevitably adhere to their surfaces, which need to be cleaned regularly. At this time, the person manually pulls the limit plate 19 to compress the limit spring 20, releasing the limiting effect on the mounting bracket 15, and the mounting bracket 15 can be taken out without using screws to fasten it, making it more convenient to take out and install.

[0033] The bottom of the frame 1 is provided with a support angle, and the support foot 17 is provided with a shock-absorbing spring 18. The shock-absorbing spring 18 is provided to support the equipment so that the vibration generated by the equipment is reduced and the impact on the factory floor is small.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrostatic tea stem sorting machine, characterized by: The invention comprises a frame (1), a conveyor (2), and an electrostatic roller (3). The conveyor (2) is arranged on the frame (1). Two rows of spaced-apart limiting frames (5) are fixedly installed on the top of the frame (1). The electrostatic roller (3) is provided with a plurality of them. Both ends of the plurality of electrostatic rollers (3) are jointly rotatably mounted with connecting rods (4). A sliding block (14) is slidably mounted on each of the limiting frames (5). Both ends of the rotating shaft of each electrostatic roller (3) are correspondingly rotatably connected to each of the sliding blocks (14). Two symmetrical limiting frames (5) are each provided with a lifting device, and the two connecting rods (4) are respectively connected to the two lifting devices.

2. The electrostatic tea stem sorting machine according to claim 1, characterized in that: The lifting device comprises: a screw rod (6) and a top block (11); the top block (11) is fixedly mounted on the top side wall of the limiting frame (5); the screw rod (6) is threadedly mounted on the top block (11); and the bottom of the screw rod (6) is rotatably connected to the sliding block (14).

3. The electrostatic tea stem sorting machine according to claim 2, characterized in that: A plurality of mounting grooves (12) are provided at intervals on the top of the connecting rod (4), a mounting frame (15) is placed in the mounting groove (12), a scraper plate (16) and a baffle plate (10) are fixedly mounted on the mounting frame (15), a limiting mechanism for limiting the mounting frame (15) is also provided on the top of the connecting rod (4), a material receiving trough (13) is fixedly mounted on the top of the frame (1), and the material receiving trough (13) is located directly below the baffle plate (10) and the scraper plate (16).

4. The electrostatic tea stem sorting machine according to claim 3, characterized in that: The limiting mechanism comprises a fixed block (21), a limiting spring (20), and a limiting plate (19); the fixed block (21) is fixedly mounted on the top wall of the connecting rod (4); the limiting spring (20) is fixedly connected to the side wall of the fixed block (21); and the limiting plate (19) is fixedly connected to one end of the limiting spring (20) away from the fixed block (21).

5. The electrostatic tea stem sorting machine according to claim 1, characterized in that: The bottom of the frame (1) is provided with a support foot (17), and the support foot (17) is provided with a shock-absorbing spring (18).

6. The electrostatic tea stem sorting machine according to claim 1, characterized in that: A mounting plate (7) is fixedly mounted on the side wall of one of the connecting rods (4), a motor (8) is fixedly mounted on the mounting plate (7), and an output end of the motor (8) is connected to the rotating shafts of a plurality of electrostatic rollers (3) arranged side by side via a synchronous chain.

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