Tea grading and screening device

Abstract

The present invention discloses a tea grading and screening device, which belongs to the field of screening technology, and includes a machine base, a sieve plate and a guide plate. The sieve plate is formed with a plurality of screening partitions. The machine base is provided with a driving assembly for pushing the sieve plate to slide back and forth intermittently. The machine base and the sieve plate are respectively fixed with a bracket and a connecting block. The bracket is provided with a plurality of guide grooves. One end of the plurality of guide grooves is close to each other. The length direction of one guide groove is consistent with the gravity direction. The length directions of the remaining guide grooves are all at an angle with the gravity direction, and the sizes of the angles are not consistent. The connecting block is slidably provided with a plurality of guide blocks, and the plurality of guide blocks are used to enter the plurality of guide grooves respectively. The machine base is provided with a control assembly for controlling the positions of the plurality of guide blocks. The tea grading and screening device of the present invention can reduce the probability of tea clogging the sieve plate while conveying and screening tea.

Description

Technical Field

[0001] The invention relates to the technical field of screening, in particular to a tea grading and screening device. Background Art

[0002] During the tea production process, a perforated sieve is needed to classify tea leaves of different particle sizes.

[0003] The Chinese invention patent with announcement number CN118719528A introduces a tea processing and screening device and process, which relates to the field of tea processing technology, including a frame and an anti-blocking component. A feed hopper is placed at one end of the top of the frame, and an opening and closing component is arranged inside the lower end of the feed hopper. A screen frame is arranged at the bottom of the opening and closing component, and a screen plate is arranged inside the screen frame.

[0004] The problem solved in the above solution is that when the ejector plate moves to under the sieve holes of the sieve plate, it will automatically move upward to clear the holes without stopping the machine, which is beneficial to improving the screening efficiency of the screening equipment. At the same time, an ejector plate is arranged under each sieve plate, which can effectively reduce the occurrence of blockage and avoid affecting the effect of tea screening due to blockage of the sieve holes.

[0005] This application provides another technical solution to solve this technical problem. Summary of the invention

[0006] The purpose of the present invention is to solve the problems in the prior art and to propose a tea grading and screening device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A tea grading and screening device comprises a machine base, a sieve plate and a guide plate, the sieve plate is formed with a plurality of screening zones, the machine base is provided with a driving assembly for pushing the sieve plate to slide intermittently, the machine base and the sieve plate are respectively fixed with a bracket and a connecting block, the bracket is provided with a plurality of guide grooves, one end of the plurality of guide grooves are close to each other, the length direction of one of the guide grooves is consistent with the direction of gravity, and the length directions of the remaining guide grooves are at an angle with the direction of gravity, and the sizes of the angles are not consistent, the connecting block is slidably provided with a plurality of guide blocks, the plurality of guide blocks are used to enter a plurality of guide grooves respectively, and the machine base is provided with a control assembly for controlling the positions of the plurality of guide blocks.

[0009] The present invention is further configured as follows: both ends of the plurality of guide blocks penetrate the connecting block, the position of the control assembly corresponds to the plurality of guide grooves, one end of the guide block faces the guide groove, and the other end of the guide block faces the control assembly.

[0010] The present invention is further configured as follows: a plurality of springs 1 are respectively arranged at locations in the connection block corresponding to the plurality of guide blocks, and both ends of the springs 1 are connected to the guide block and the connection block.

[0011] The present invention is further configured as follows: a sliding plate and spring 2 are provided in the connecting block, the spring 2 is connected to the sliding plate and the connecting block, the sliding plate and the connecting block are slidingly connected, the sliding plate corresponds to a plurality of guide blocks, and a plurality of convex teeth are respectively formed at the sliding plate corresponding to the plurality of guide blocks, the convex teeth are used to abut against the guide blocks, the convex teeth and the guide blocks are respectively formed with inclined surfaces and arc surfaces, and a limited position opening is formed between the convex teeth and the guide plate.

[0012] The present invention is further configured as follows: the control assembly includes a connecting frame and a plurality of electromagnet actuators, the connecting frame is fixedly connected to the machine base, and the plurality of electromagnet actuators respectively correspond to a plurality of guide blocks and are fixedly connected to the connecting frame.

[0013] The present invention is further configured as follows: the machine base is provided with a plurality of spring support rods, and the two ends of the spring support rods are rotatably connected to the machine base and the screen plate respectively.

[0014] The present invention is further configured as follows: the driving assembly comprises a reduction motor and a connecting rod, the reduction motor is fixedly mounted on a machine base, and two ends of the connecting rod are rotationally connected to an output end of the reduction motor and a sieve plate.

[0015] The present invention is further configured as follows: a support frame is fixed between two adjacent screening sections corresponding to the screen plate, and a guiding slope is formed on the side of the support frame facing the two adjacent screening sections.

[0016] In summary, the present invention has the following beneficial effects:

[0017] The sieve plate intermittently slides back and forth along the direction of gravity, and the tea leaves falling on the sieve plate will be driven to achieve tea screening. At the same time, this action can make the tea leaves stuck in the sieve holes fall out of the sieve holes due to inertia when the sieve plate slides toward the ground, reducing the probability of tea leaves clogging the sieve plate.

[0018] After the sieve plate slides back and forth intermittently along the direction of gravity for many times, it will rely on the electromagnetic actuator to change the direction of the intermittent reciprocating sliding, so that the sliding direction of the sieve plate has an angle with the direction of gravity, which changes the relative position of the tea leaves and the sieve plate, thereby realizing the transportation of the tea leaves.

[0019] The sliding direction of the screen plate can be changed quickly, so that tea leaves of different shapes and weights can be screened, increasing the applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0021] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0022] Figure 3 It is a structural schematic diagram of the sieve plate of the present invention;

[0023] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 It is a schematic diagram of the structure of the bracket and the connecting block of the present invention;

[0025] Figure 6 The structure of the connection block of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 7 The structure of the connection block of the present invention is shown in FIG. Figure 2 .

[0027] In the figure: 1. base; 2. screen plate; 3. guide plate; 4. support frame; 5. screening area; 6. bracket; 7. connecting block; 8. spring support rod; 9. reduction motor; 10. connecting rod; 11. guide groove; 12. guide block; 13. spring 1; 14. sliding plate; 15. spring 2; 16. convex teeth; 17. connecting frame; 18. electromagnet actuator. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments.

[0029] like Figure 1 and Figure 2As shown, the present application provides a tea grading and screening device, including a machine base 1, a sieve plate 2 and a guide plate 3, the sieve plate 2 and the guide plate 3 are all located in the machine base 1, the guide plate 3 is located below the sieve plate 2, and the machine base 1 is formed with a feeding port, a main discharge port and a plurality of auxiliary discharge ports, wherein the sieve plate 2 is formed with a plurality of screening partitions 5, in this embodiment, the screening partitions 5 are set to three, the three screening partitions 5 are arranged along the length direction of the sieve plate 2, the sieve hole sizes at the three screening partitions 5 are changed step by step in sequence, and a support frame 4 is fixed between two adjacent screening partitions 5 of the sieve plate 2 to ensure the strength of the sieve plate 2, the feeding port corresponds to the top of the screening partition 5 at one end of the sieve plate 2, the main discharge port corresponds to the screening partition 5 at the other end of the sieve plate 2, and the guide plate 3 is formed with guide paths corresponding to the plurality of screening partitions 5, and the plurality of guide paths respectively correspond to the plurality of auxiliary discharge ports.

[0030] Tea leaves will be intermittently added into the machine base 1 through the feeding port and fall into the corresponding screening area 5. After being screened by the screening area 5, tea leaves that do not meet the size will pass through the sieve plate 2 and fall into the guide path of the corresponding guide plate 3, and then be discharged through the auxiliary discharge port. Tea leaves that meet the size will enter the next screening area 5 for screening. The above method is repeated until the tea leaves pass through all the screening areas 5 and are discharged through the main discharge port.

[0031] like Figure 3 As shown, the machine base 1 and the sieve plate 2 are respectively fixed with a bracket 6 and a connecting block 7. In the present embodiment, four brackets 6 and four connecting blocks 7 are provided, and they are respectively close to the four corners of the sieve plate 2. The connecting block 7 and the bracket 6 are slidably connected, and the machine base 1 is provided with a plurality of spring support rods 8, and the two ends of the spring support rods 8 are respectively rotatably connected with the machine base 1 and the sieve plate 2. In the initial state, the connecting block 7 will maintain contact with the bracket 6 under the support of the spring support rods 8, wherein the machine base 1 is provided with a driving assembly, and the driving assembly includes a reduction motor 9 and a connecting rod 10, and the reduction motor 9 is fixedly mounted on the machine base 1, and the two ends of the connecting rod 10 are rotatably connected with the output end of the reduction motor 9 and the sieve plate 2.

[0032] When the reduction motor 9 is working, the reduction motor 9 will apply a force to the sieve plate 2 through the connecting rod 10. When the force is toward the ground, the sieve plate 2 slides toward the ground, and the spring support rod 8 is deformed by the force. When the force is away from the ground, the sieve plate 2 slides away from the ground, and the spring support rod 8 is reset. When the tea leaves are located on the sieve plate 2, the sieve plate 2 slides toward the ground, and the tea leaves will be separated from the sieve plate 2 due to inertia, and then fall on the sieve plate 2 due to its own gravity. This is repeated many times, and the sieve plate 2 will have a screening effect on the tea leaves.

[0033] like Figure 4 and Figure 5As shown, the bracket 6 is provided with a plurality of guide grooves 11, and the ends of the guide grooves 11 away from the ground are close to each other, the length direction of one of the guide grooves 11 is consistent with the direction of gravity, and the remaining guide grooves 11 are inclined toward the end close to each other as the center of the circle away from the main discharge port, and there is an angle between the length direction and the gravity direction, and the sizes of the angles are inconsistent. Among them, the connecting block 7 is slidably provided with a plurality of guide blocks 12, both ends of the plurality of guide blocks 12 pass through the connecting block 7, one end of the guide block 12 faces the guide groove 11, and the other end of the machine base 1 corresponding to the guide block 12 is provided with a control component, and the plurality of guide blocks 12 are used to enter the plurality of guide grooves 11 respectively, and after the corresponding guide block 12 slides into one of the guide grooves 11, when the reduction motor 9 is working, the sliding direction of the screen plate 2 is consistent with the direction of the guide groove 11.

[0034] like Figure 6 and Figure 7 As shown, a plurality of springs 13 are respectively arranged at the corresponding positions of the plurality of guide blocks 12 in the connecting block 7, and both ends of the spring 13 are connected to the guide block 12 and the connecting block 7, wherein a sliding plate 14 and a spring 2 15 are arranged in the connecting block 7, and the spring 2 15 is connected to the sliding plate 14 and the connecting block 7, and the sliding plate 14 is slidably connected to the connecting block 7, and the sliding plate 14 corresponds to the plurality of guide blocks 12, and the sliding plate 14 is formed with a plurality of convex teeth 16, and the plurality of convex teeth 16 correspond to the guide blocks 12, and the convex teeth 16 is used to abut against the guide block 12, and a limited opening is formed between the convex tooth 16 and the guide plate 3, and the limited opening is used for the guide block 12 to slide in. The convex tooth 16 and the guide block 12 are respectively formed with an inclined surface and an arc surface. In the initial state, the guide block 12 slides into the guide groove 11 whose length direction is consistent with the gravity direction, and the guide block 12 is located in the limited opening, and the spring 13 corresponding to the guide block 12 is maintained in a state of deformation under force, while the remaining guide blocks 12 correspond to the convex tooth 16.

[0035] like Figure 4 , Figure 5 , Figure 6 as well as Figure 7 As shown, the control component includes a connecting frame 17 and a plurality of electromagnet actuators 18. The connecting frame 17 is fixedly connected to the base 1. The plurality of electromagnet actuators 18 respectively correspond to a plurality of guide blocks 12 and are fixedly connected to the connecting frame 17. When the electromagnet actuator 18 is energized, the internal electromagnet will rely on the electromagnetic effect to push the active part of the electromagnet actuator 18, thereby pressing the guide block 12.

[0036] After the tea leaves fall into the screening area 5 of the sieve plate 2, the guide groove 11 whose length direction is consistent with the gravity direction will be pushed into the guide block 12 under the action of the corresponding electromagnet pusher, and the sieve plate 2 will intermittently reciprocate along the gravity direction by relying on the drive of the reduction motor 9. The tea leaves will be shaken by the sieve plate 2, so that the tea leaves that meet the aperture of the sieve hole pass through the sieve plate 2, and such action can make the tea leaves stuck in the sieve hole re-detach from the sieve hole. After continuing in this direction for many times, one of the guide grooves 11 with an angle between its length direction and the gravity direction will be pushed into the guide block 12 under the action of the corresponding electromagnet pusher, and the guide block 12 located in the guide groove 11 with the length direction consistent with the gravity direction will be reset under the action of the sliding plate 14 and slide out of the guide groove 11. Driven by the reduction motor 9, the sieve plate 2 will intermittently reciprocate along the direction with an angle with the gravity direction. The position of the tea leaves falling on the sieve plate 2 will change due to inertia and gravity. Repeat the above method many times, and the tea leaves will be transported while being screened, passing through the three screening areas 5 until they are discharged through the main discharge port.

[0037] The operator can change the sliding direction of the screen plate 2 by entering the guide groove 11 with a guide block 12 and an angle between the length direction and the gravity direction, so as to quickly change the sliding direction of the screen plate 2, so that tea leaves of different shapes and weights can be screened, thereby increasing the applicability of the equipment.

[0038] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A tea grading and screening device, comprising a base, a sieve plate and a guide plate, wherein the sieve plate is formed with a plurality of screening zones, characterized in that: The machine base is provided with a driving component for pushing the screen plate to slide intermittently back and forth, the machine base and the screen plate are respectively fixed with a bracket and a connecting block, the bracket is provided with a plurality of guide grooves, one ends of the plurality of guide grooves are close to each other, the length direction of one of the guide grooves is consistent with the direction of gravity, and the length directions of the remaining guide grooves have angles with the direction of gravity, and the sizes of the angles are not consistent, the connecting block is slidably provided with a plurality of guide blocks, and the plurality of guide blocks are used to enter a plurality of guide grooves respectively, and the machine base is provided with a control component for controlling the positions of the plurality of guide blocks.

2. A tea grading and screening device according to claim 1, characterized in that: Both ends of the guide blocks penetrate the connecting block, the position of the control assembly corresponds to the guide grooves, one end of the guide block faces the guide groove, and the other end of the guide block faces the control assembly.

3. A tea grading and screening device according to claim 2, characterized in that: A plurality of springs 1 are respectively arranged at positions corresponding to the plurality of guide blocks in the connecting block, and two ends of the springs 1 are connected to the guide block and the connecting block.

4. A tea grading and screening device according to claim 3, characterized in that: A sliding plate and spring 2 are provided in the connecting block, the spring 2 is connected to the sliding plate and the connecting block, the sliding plate and the connecting block are slidably connected, the sliding plate corresponds to a plurality of guide blocks, a plurality of convex teeth are formed at the sliding plate corresponding to the plurality of guide blocks, the convex teeth are used to abut against the guide blocks, the convex teeth and the guide blocks are respectively formed with inclined surfaces and arc surfaces, and a limited position opening is formed between the convex teeth and the guide plate.

5. A tea grading and screening device according to claim 4, characterized in that: The control assembly comprises a connecting frame and a plurality of electromagnet actuators. The connecting frame is fixedly connected to the machine base, and the plurality of electromagnet actuators respectively correspond to a plurality of guide blocks and are fixedly connected to the connecting frame.

6. A tea grading and screening device according to claim 1, characterized in that: The machine base is provided with a plurality of spring support rods, and the two ends of the spring support rods are rotatably connected with the machine base and the screen plate respectively.

7. A tea grading and screening device according to claim 1, characterized in that: The driving assembly comprises a reduction motor and a connecting rod. The reduction motor is fixedly mounted on a machine base. Two ends of the connecting rod are rotatably connected to an output end of the reduction motor and a sieve plate.

8. The tea grading and screening device according to claim 1, characterized in that: A support frame is fixed between two adjacent screening sections corresponding to the screen plate, and a guiding inclined surface is formed on the side of the support frame facing the two adjacent screening sections.

Images