Tea screening machine for removing disintegrating slag

Abstract

The invention discloses a tea screening machine for removing disintegrating slag. The tea screening machine is provided with a supporting seat, and a supporting frame is fixed to one end of the supporting seat; the screening barrel is fixed to the bottom of the discharging hopper, and a discharging plate is installed on the side face of the screening barrel; the motor is installed on the side face of the supporting frame through a bolt, and an output shaft of the motor is connected with a connecting shaft; comprising a first cam fixedly arranged in the middle of a connecting shaft in a sleeving mode, and the end, away from a motor, of the connecting shaft is connected with a transmission shaft through a belt wheel mechanism; and the fan blades are fixedly installed at the end, away from the belt pulley mechanism, of the transmission shaft, and the outer sides of the fan blades are sleeved with protection boxes. According to the tea leaf screening machine for removing the disintegrating slag, tea leaves can be automatically turned over in the screening process, multiple times of circulating screening can be achieved when the tea leaves are blown, meanwhile, the phenomenon that the tea leaves adhere to one another and are stacked can be prevented, then the distribution uniformity of the tea leaves in the screening machine is improved, and the screening effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tea screening machines, and specifically relates to a tea screening machine for removing debris. Background Art

[0002] After tea is picked, in order to ensure the quality of tea, it is necessary to screen the tea to remove debris and impurities such as stones in the tea, so as to facilitate the subsequent drying and other treatments of the tea. Usually, a tea screening machine uses the vibration generated by a vibrator to achieve the screening and filtration of the tea. For example, a screening machine for tea processing with the publication number CN115625109A pours the tea onto the screening plate on the top-layer screening rack, and through the cooperation of two swinging guides for telescopic activities, effectively drives the top-layer screening rack, the middle-layer screening rack, and the bottom-layer screening rack to swing left and right, effectively dispersing and spreading the tea above it. However, the screening machine for tea processing still has the following disadvantages in actual use: 1. Although the above-mentioned screening machine realizes the screening of tea, the tea can only be screened once, and some debris is mixed in the tea and is not easy to separate. Therefore, during the screening process, it is not convenient to turn the tea to achieve multiple cyclic screenings; 2. Since the humidity of the tea is relatively high after picking, during the screening process, a large amount of tea will adhere to each other and accumulate, unable to ensure the uniformity of the distribution of the tea in the screening machine, thereby affecting the smoothness of the subsequent discharge of the tea.

[0003] In view of the above problems, it is urgent to innovate and design on the basis of the original tea screening machine. Summary of the Invention

[0004] The purpose of the present invention is to provide a tea screening machine for removing debris, so as to solve the problems put forward in the above background art that the tea can only be screened once, some debris is mixed in the tea and is not easy to separate, so during the screening process, it is not convenient to turn the tea, and during the screening process, a large amount of tea will adhere to each other and accumulate, unable to ensure the uniformity of the distribution of the tea in the screening machine.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A tea screening machine for removing debris is provided with a support base, one end of the support base is fixed with a support frame, and a feeding hopper is arranged at the top of the support frame; A screening cylinder, fixed to the bottom of the feeding hopper, an outlet plate is installed on the side of the screening cylinder, and a receiving plate is arranged below the screening cylinder; A motor, installed on the side of the support frame by bolts, and the output shaft of the motor is connected with a connecting shaft; It includes: The first cam is fixedly sleeved on the middle position of the connecting shaft. The end of the connecting shaft away from the motor is connected to the transmission shaft through a pulley mechanism, and a second cam is fixedly sleeved on the middle position of the transmission shaft. The transmission shaft is movably arranged on the support plate, and the support plate is fixed to the other end of the support seat. The fan blade is fixedly installed at the end of the transmission shaft away from the pulley mechanism. A protective box is sleeved outside the fan blade, and the side surface of the protective box is connected to the side surface of the heating box through an air delivery pipe. The heating box is fixed to the side surface of the support plate, and a jet nozzle is installed through the side surface of the heating box.

[0006] Preferably, one end of the inner bottom surface of the screening cylinder close to the connecting shaft is solid, and the other end of the screening cylinder is grid-shaped. An exhaust port is arranged on the side surface of the screening cylinder close to the support frame. Therefore, when the tea leaves fall from the feeding hopper, they will not directly fall on the connecting shaft, and the gas blown into the screening cylinder can escape from the exhaust port.

[0007] Preferably, the screening cylinder, the discharge plate and the receiving plate are all inclined, and the inclination directions of the screening cylinder and the receiving plate are opposite. The upper end surface of the receiving plate is a concave arc structure, which is convenient for the tea leaves and debris after screening to be conveyed and discharged in different directions.

[0008] Preferably, a movable rod penetrates through the screening cylinder above the first cam, and the movable rod is slidably connected to the screening cylinder. A spring is wound around the lower end of the movable rod. At the same time, a movable plate is movably arranged on the inner wall of one end of the screening cylinder. The first cam can drive the movable rod to move upward, and then contact with the movable plate to drive the movable plate to rotate.

[0009] Preferably, the movable plate is hinged to the screening cylinder, and a spring is arranged at the hinge point. There is a space between the movable plate and the movable rod. At the same time, the distance between the movable plate and the inner bottom surface of the screening cylinder is smaller than the distance between the movable plate and the inner top surface of the screening cylinder. When the movable rod is separated from the movable plate, the elasticity of the spring can drive the movable plate to shake continuously, improving the uniformity of the tea leaf distribution.

[0010] Preferably, the protective box is communicated with the heating box through an air delivery pipe, and the heating box is communicated with the jet nozzle. At the same time, the jet nozzle penetrates through the inner wall of the other end of the screening cylinder, and the jet nozzles are evenly distributed. The gas generated by the rotation of the fan blade can be transmitted into the heating box through the air delivery pipe and finally discharged from the jet nozzle.

[0011] Preferably, a movable pipe penetrates through the side surface of the support plate, and the movable pipe is connected to the support plate by a bearing. The movable pipes are symmetrically distributed about the vertical axis of the support plate. At the same time, the movable pipe is communicated with the heating box, and part of the gas in the heating box can enter the interior of the movable pipe.

[0012] Preferably, air jet holes are reserved on both sides of the movable pipe, and the air jet holes are evenly distributed on the movable pipe. Moreover, the movable pipe and the connecting shaft are meshed and driven through a bevel gear set. The gas in the movable pipe can finally be discharged from the air jet holes and blown towards the screening cylinder, playing a role in turning the tea leaves.

[0013] Preferably, a limiting ring is fixed inside the movable pipe, and a ball is movably arranged inside the limiting ring. Moreover, the cross-sectional diameter of the ball is greater than the distance between the limiting ring and the air jet hole. At the same time, the air jet hole, the limiting ring, and the ball are longitudinally arranged in one-to-one correspondence. The movable pipe can change the air outlet angle by rotating, and the ball is always at the lower part due to gravity. Therefore, it can prevent gas from being discharged from the lower part.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The tea screening machine for removing debris can automatically turn the tea leaves during the screening process, and can achieve multiple cyclic screenings when blowing the tea leaves. At the same time, it can prevent the phenomenon of mutual adhesion and accumulation between the tea leaves, thereby improving the uniformity of the distribution of the tea leaves in the screening machine and enhancing the screening effect. The specific content is as follows: 1. When the first cam rotates and strikes the screening cylinder, it can contact the movable rod and push the movable rod to slide on the screening cylinder. When the movable rod rises, it can contact the movable plate. When the movable rod does not contact the movable plate, the elastic force of the spring can drive the movable plate to vibrate. In this way, the tea leaves falling on the movable plate can be evenly scattered into the screening cylinder through the vibration of the movable plate, ensuring the uniformity of the distribution. 2. The wind generated when the fan blades rotate can be transmitted to the heating box through the air delivery pipe and heated. In this way, part of the gas can be discharged from the air jet nozzle and blown onto the screening cylinder. When rolling down to the lower part of the screening cylinder after vibration, it can be blown by the gas and roll towards the higher part of the screening cylinder, playing a role in cyclic screening of the tea leaves, and can also turn the tea leaves. Moreover, the hot air blown out can also dry the moisture on the surface of the tea leaves. 3. Part of the gas in the heating box can enter the movable pipe and finally be blown from the air jet holes towards the lower part of the screening cylinder. While blowing, the movable pipe can be driven to rotate through the meshing transmission of the bevel gear set. By rotating, the air outlet angle can be changed. In this way, blowing from the lower part can further turn the tea leaves and prevent the tea leaves from sticking together and affecting the screening. A ball corresponding to the air jet hole is arranged inside the movable pipe. In this way, when the movable pipe rotates, the ball is always at the lower part and blocks the air jet nozzle at the lower part, preventing the gas from being discharged from the lower part and blowing away the discharged debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view structural schematic diagram of the present invention; Figure 2 is a rear view structural schematic diagram of the present invention; Figure 3 is a side view structural schematic diagram of the movable plate of the present invention; Figure 4 This is a schematic view of the upward view of the screening cylinder of the present invention; Figure 5 This is a schematic view of the side cross-section of the movable pipe of the present invention; Figure 6 This is a schematic view of the downward view of the screening cylinder of the present invention; Figure 7 This is a schematic view of the front cross-section of the movable pipe of the present invention; Figure 8 This is a schematic view of the upward view of the limit ring of the present invention.

[0016] In the figure: 1, support base; 2, support frame; 3, feeding hopper; 4, screening cylinder; 5, discharge plate; 6, receiving plate; 7, motor; 8, connecting shaft; 9, first cam; 10, movable rod; 11, movable plate; 12, transmission shaft; 13, second cam; 14, support plate; 15, fan blade; 16, protection box; 17, air delivery pipe; 18, heating box; 19, air jet nozzle; 20, movable pipe; 21, air jet hole; 22, limit ring; 23, ball; 24, bevel gear set. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figure 1-8 , the present invention provides a technical solution: a tea screening machine for removing debris, provided with a support base 1, one end of the support base 1 is fixed with a support frame 2, and a feeding hopper 3 is arranged at the top of the support frame 2; a screening cylinder 4, fixed to the bottom of the feeding hopper 3, an outlet plate 5 is installed on the side of the screening cylinder 4, and a receiving plate 6 is arranged below the screening cylinder 4; a motor 7, installed on the side of the support frame 2 by bolts, the output shaft of the motor 7 is connected with a connecting shaft 8; including: a first cam 9, fixedly sleeved in the middle position of the connecting shaft 8, one end of the connecting shaft 8 away from the motor 7 is connected with a transmission shaft 12 through a pulley mechanism, and a second cam 13 is fixedly sleeved in the middle position of the transmission shaft 12, the transmission shaft 12 is movably arranged on a support plate 14, and the support plate 14 is fixed to the other end of the support base 1; a fan blade 15, fixedly installed at one end of the transmission shaft 12 away from the pulley mechanism, a protection box 16 is sleeved outside the fan blade 15, and the side of the protection box 16 is connected with the side of a heating box 18 through an air delivery pipe 17, the heating box 18 is fixed to the side of the support plate 14, and an air jet nozzle 19 is installed through the side of the heating box 18.

[0019] As Figure 1 and Figure 6 shown, one end of the inner bottom surface of the screening cylinder 4 close to the connecting shaft 8 is solid, and the other end of the screening cylinder 4 is mesh-shaped. An exhaust port is provided on the side surface of one end of the screening cylinder 4 close to the support frame 2. When the tea leaves fall from the feeding hopper 3 onto the movable plate 11 and then onto the screening cylinder 4, they land on its solid position, so they will not land on the connecting shaft 8 and affect its transmission; the screening cylinder 4, the discharge plate 5 and the receiving plate 6 are all inclined, and the inclination directions of the screening cylinder 4 and the receiving plate 6 are opposite. The upper end surface of the receiving plate 6 is a concave arc structure. After the tea leaves are screened by the screening cylinder 4, the qualified tea leaves can be discharged from the discharge plate 5, while impurities such as crushed residues and stones can land on the receiving plate 6 and be discharged; As Figures 2-4 shown, a movable rod 10 penetrates through the screening cylinder 4 above the first cam 9. The movable rod 10 is slidably connected to the screening cylinder 4, and a spring is wound around the lower end of the movable rod 10. At the same time, a movable plate 11 is movably arranged on the inner wall of one end of the screening cylinder 4. The motor 7 drives the first cam 9 to rotate through the connecting shaft 8. When rotating, it can knock on the screening cylinder 4, and the screening of the tea leaves is realized through vibration. At the same time, when rotating, it can also contact the movable rod 10 and push the movable rod 10 to slide in the screening cylinder 4; the movable plate 11 is hinged to the screening cylinder 4, and a spring is provided at the hinge point. There is a space between the movable plate 11 and the movable rod 10. At the same time, the distance between the movable plate 11 and the inner bottom surface of the screening cylinder 4 is smaller than the distance between it and the inner top surface of the screening cylinder 4. When the movable rod 10 slides, it can contact the movable plate 11 and drive it to rotate. After the first cam 9 does not contact the movable rod 10, the resilience of the spring can drive the movable rod 10 to descend and separate from the movable plate 11. In this way, through the elasticity of the spring on the movable plate 11, it can drive its jitter, and through the jitter, the uniformity of the tea leaves when landing on the screening cylinder 4 can be improved; As Figures 5-6 shown, the protective box 16 is interconnected with the heating box 18 through an air delivery pipe 17, and the heating box 18 is connected to the air jet nozzles 19. The air jet nozzles 19 penetrate through the inner wall of the other end of the screening cylinder 4, and the air jet nozzles 19 are equally spaced. When the connecting shaft 8 rotates, it can drive the transmission shaft 12 to rotate through a pulley mechanism, and then drive the second cam 13 to rotate and knock on the receiving plate 6 to improve the vibration efficiency and accelerate the screening. When the transmission shaft 12 rotates, it can drive the fan blades 15 to rotate. In this way, the generated wind can be transmitted to the heating box 18 through the air delivery pipe 17. After the gas is heated, it can be discharged from the air jet nozzles 19 and blown towards the inside of the screening cylinder 4, which can blow the tea leaves sliding to the lower part of the screening cylinder 4 to the higher part, realizing the cyclic screening of the tea leaves. At the same time, through the hot air blown out, it can also dry the moisture on the surface of the tea leaves, play a role in turning, and prevent the tea leaves from sticking to each other and affecting sliding during screening; As Figure 4 and Figures 7-8As shown in the figure, a movable tube 20 penetrates through the side surface of the support plate 14, and the movable tube 20 is connected to the support plate 14 by bearings. The movable tubes 20 are symmetrically distributed about the vertical axis of the support plate 14, and the movable tube 20 is communicated with the heating box 18. Spray holes 21 are reserved on both sides of the movable tube 20, and the spray holes 21 are equally spaced on the movable tube 20. The movable tube 20 and the connecting shaft 8 are meshed and driven by a bevel gear set 24. A limiting ring 22 is fixed inside the movable tube 20, and a ball 23 is movably arranged inside the limiting ring 22. The cross-sectional diameter of the ball 23 is larger than the distance between the limiting ring 22 and the spray hole 21. The spray holes 21, the limiting ring 22 and the balls 23 are arranged longitudinally in one-to-one correspondence. Part of the gas in the heating box 18 can enter the movable tube 20 and finally be discharged from the spray holes 21, blowing towards the screening cylinder 4 from below to further turn the tea leaves and improve the screening efficiency. When the connecting shaft 8 rotates, it can drive the movable tube 20 to rotate through the meshing transmission of the bevel gear set 24. Therefore, when the movable tube 20 exhausts gas, it can also rotate to change the angle of the outgoing gas and achieve comprehensive turning. When the movable tube 20 rotates, the balls 23 inside it can roll and always stay below, so as to block the lower spray holes 21 and prevent the gas from spraying out from the lower spray holes 21 and scattering the debris.

[0020] Working principle: As Figure 1-8 shown in the figure, the tea leaves to be screened are poured into the feeding hopper 3, and then the tea leaves fall on the movable plate 11 and then enter the screening cylinder 4 for screening. The first cam 9 rotates to vibrate and screen the screening cylinder 4 by knocking, and at the same time, it can push the movable plate 11 to shake through the movable rod 10 to improve the uniformity of the distribution of the tea leaves in the screening cylinder 4, so that the screened tea leaves can be discharged from the discharge plate 5, while the debris can be discharged from the receiving plate 6. After that, the fan blade 15 is driven to rotate through the transmission of the pulley mechanism. The generated wind enters the heating box 18 and is heated, and then can be discharged from the air jet nozzle 19 to blow the tea leaves to realize cyclic screening. In addition, part of the gas can enter the movable tube 20 and be discharged from the spray holes 21 to blow into the screening cylinder 4 to turn the tea leaves, prevent adhesion and accelerate the screening of the tea leaves.

[0021] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tea screening machine for removing broken tea residues, comprising a support base (1), a support frame (2) being fixed to one end of the support base (1), and a lower hopper (3) being arranged on the top of the support frame (2); A screening cylinder (4) is fixed to the bottom of the lower hopper (3), a discharge plate (5) is installed on the side of the screening cylinder (4), and a receiving plate (6) is arranged below the screening cylinder (4); An electric motor (7) is mounted on a side surface of the support frame (2) by means of bolts, and an output shaft of the electric motor (7) is connected to a connecting shaft (8); It is characterized in that include: A first cam (9) is fixedly sleeved at a middle position of the connecting shaft (8); an end of the connecting shaft (8) away from the motor (7) is connected to a transmission shaft (12) via a pulley mechanism, and a second cam (13) is fixedly sleeved at a middle position of the transmission shaft (12); the transmission shaft (12) is movably arranged on a support plate (14), and the support plate (14) is fixed to the other end of the support seat (1); A fan blade (15) is fixedly mounted on an end of the transmission shaft (12) away from the pulley mechanism. A protective box (16) is sleeved on the outer side of the fan blade (15). The side of the protective box (16) is connected to the side of a heating box (18) via an air pipe (17). The heating box (18) is fixed to the side of the support plate (14), and an air nozzle (19) is installed through the side of the heating box (18).

2. A tea screening machine for removing broken dregs according to claim 1, characterized in that: One end of the inner bottom surface of the screening cylinder (4) close to the connecting shaft (8) is solid, and the other end of the screening cylinder (4) is grid-shaped, and an exhaust port is provided on the side surface of one end of the screening cylinder (4) close to the support frame (2).

3. A tea screening machine for removing broken dregs according to claim 1, characterized in that: The screening drum (4), the discharge plate (5) and the receiving plate (6) are all arranged in an inclined manner, and the inclination directions of the screening drum (4) and the receiving plate (6) are opposite, and the upper end surface of the receiving plate (6) is a concave arc structure.

4. A tea screening machine for removing broken dregs according to claim 1, characterized in that: A movable rod (10) passes through the screening cylinder (4) above the first cam (9), and the movable rod (10) and the screening cylinder (4) are slidably connected, and a spring is wound around the lower end of the movable rod (10), and a movable plate (11) is movably provided on the inner wall of one end of the screening cylinder (4).

5. A tea screening machine for removing broken dregs according to claim 4, characterized in that: The movable plate (11) and the screening drum (4) are hinged, and a spring is provided at the hinge point. A space is left between the movable plate (11) and the movable rod (10), and the distance between the movable plate (11) and the inner bottom surface of the screening drum (4) is smaller than the distance between the movable plate (11) and the inner top surface of the screening drum (4).

6. A tea screening machine for removing broken dregs according to claim 1, characterized in that: The protection box (16) is connected to the heating box (18) via the air pipe (17), and the heating box (18) is connected to the air nozzle (19), and the air nozzle (19) passes through the inner wall of the other end of the screening cylinder (4), and the air nozzles (19) are distributed at equal intervals.

7. A tea screening machine for removing broken dregs according to claim 1, characterized in that: A movable tube (20) passes through the side of the support plate (14), and the movable tube (20) is connected to the support plate (14) via a bearing. The movable tube (20) is symmetrically distributed about the vertical axis of the support plate (14), and the movable tube (20) is connected to the heating box (18).

8. A tea screening machine for removing broken dregs according to claim 7, characterized in that: Both sides of the movable tube (20) are reserved with jet holes (21), and the jet holes (21) are evenly spaced on the movable tube (20), and the movable tube (20) and the connecting shaft (8) are meshed and driven via a bevel gear set (24).

9. A tea screening machine for removing broken dregs according to claim 8, characterized in that: A limiting ring (22) is fixed inside the movable tube (20), and a ball (23) is movably arranged inside the limiting ring (22), and the cross-sectional diameter of the ball (23) is larger than the distance between the limiting ring (22) and the air injection hole (21), and the air injection hole (21), the limiting ring (22) and the ball (23) are arranged in a one-to-one correspondence in the longitudinal direction.

Images