Automatic screening equipment for scented tea production

Abstract

The invention is suitable for the field of scented tea production, and provides automatic screening equipment for scented tea production, which comprises an elastic bracket used by a vibrating screen, a vibrating machine box fixedly arranged at the top of the elastic bracket, and a screening box body mounted at the top of the vibrating machine box, the classified screening assembly comprises a first screening structure and a second screening structure, the first screening structure comprises four first mounting rollers rotationally arranged in the screening box body, and a first screen mesh belt is arranged on the first mounting rollers in a matched mode; the second screening structure comprises second mounting rollers which are arranged in the first screen mesh belt and are in the same distribution state as the four first mounting rollers, and a second screen mesh belt is arranged on the second mounting rollers in a matched mode. The flower tea vibrating screen has the beneficial effects that the movement of flower tea is effectively slowed down, so that the screen vibrating time is prolonged, and the screening effect can be improved.

Description

Technical Field

[0001] The invention belongs to the field of scented tea production, and in particular relates to automatic screening equipment for scented tea production. Background Art

[0002] Scented tea is a special type of reprocessed tea. It mainly uses the characteristic of tea being good at absorbing odors, and processes fresh flowers with fragrance together with new tea. After the tea absorbs the fragrance, the dried flowers are removed, so that the tea retains the fragrance of flowers.

[0003] In the production process of scented tea, screening equipment is a commonly used equipment. Screening equipment can separate individuals of different sizes in scented tea, making the overall scented tea more uniform and facilitating the grading of scented tea products.

[0004] Because scented tea itself is light in weight, most screening equipment uses vibration screening, such as a linear vibrating screen. This equipment uses the gravity and vibration of the scented tea to achieve the screening purpose. However, in actual situations, most of the scented tea will fall quickly on the vibrating screen, and the separation time is short, which ultimately leads to an insufficient screening effect. Multiple treatments are often required to achieve a good effect. Therefore, an automatic screening equipment for scented tea production is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide an automatic screening device for scented tea production, aiming to solve the problems mentioned in the above background technology.

[0006] The embodiment of the present invention is implemented as follows: an automatic screening device for scented tea production includes an elastic bracket used for vibrating the screen, a vibrating chassis is fixedly arranged on the top of the elastic bracket, and also includes: A screening box, wherein the screening box is installed on the top of the vibration box, and the screening box itself is in an inclined state, and the two ends of the screening box along its own length direction are respectively a feed end and a discharge end, and the height of the feed end is greater than the height of the discharge end, and a rectangular opening arranged along its own length direction is opened on the top of the screening box; A graded screening component, the graded screening component is located in a screening box, the graded screening component includes a first screening structure and a second screening structure, the first screening structure includes four first mounting rollers rotatably arranged in the screening box, the first mounting rollers are provided with a first screen belt, the four first mounting rollers are all located in the first screen belt, the first screen belt between the two first mounting rollers at the top corresponds to the position of the rectangular opening, and the spacing between the two first mounting rollers is greater than the length of the rectangular opening, the second screening structure includes a second mounting roller arranged in the first screen belt and in the same distribution state as the four first mounting rollers, the second mounting roller is provided with a second screen belt, and a receiving plate located in the first screen belt is fixedly connected to the screening box; A first discharging structure, the first discharging structure is arranged at the discharging end of the screening box, the first discharging structure is used to guide the scented tea on the first screen belt, a second discharging structure and a third discharging structure are arranged on one side of the screening box close to the discharging end, the second discharging structure is located between the first screen belt and the second screen belt, the second discharging structure is used to guide the scented tea on the second screen belt from one side of the screening box, the third discharging structure is arranged at the tail end of the receiving plate, the third discharging structure is used to guide the scented tea on the receiving plate from the other side of the screening box; The driving assembly is located outside the screening box, and is used to drive the first screen belt and the second screen belt to rotate. When the scented tea moves from the feed end to the discharge end on the first screen belt and the second screen belt, the rotation direction of the first screen belt and the second screen belt is opposite to the movement direction of the scented tea.

[0007] Preferably, a first discharging gap is provided between the first screen belt and the screening box between the two first mounting rollers near the discharging end, and a second discharging gap is provided between the first screen belt and the second screen belt at this position; The first discharging structure includes a first baffle fixedly connected to the screening box and located in the first discharging gap, and the screening box is provided with a first discharging port corresponding to the position of the first baffle; The second discharging structure comprises a first inclined guide plate whose two ends are fixedly connected to the inner wall of the screening box, a second baffle plate which is vertically arranged with the first inclined guide plate is fixedly connected to one side of the first inclined guide plate facing the first screen belt, and a second discharging port corresponding to the position of the first inclined guide plate is opened on the screening box; The third discharging structure includes a second inclined guide plate fixedly connected to the rear end of the receiving plate, both ends of the second inclined guide plate are connected to the inner wall of the screening box, and the screening box is provided with a third discharging port corresponding to the position of the second inclined guide plate.

[0008] Preferably, first filling plates are provided on both sides of the top of the first screen belt, and second filling plates are provided on both sides of the top of the second screen belt. The first filling plates and the second filling plates are fixed on the inner walls on both sides of the screening box, and the first filling plates and the second filling plates are used to fill the gaps between the first screen belt and the second screen belt and the inner walls of the side screening box, respectively.

[0009] Preferably, the outside of the screening box is fixedly connected with a first material guide plate corresponding to the first discharge port position, the outside of the screening box is fixedly connected with a second material guide plate corresponding to the second discharge port position, and the outside of the screening box is fixedly connected with a third material guide plate corresponding to the third discharge port position.

[0010] Preferably, the driving assembly includes a power box body fixedly connected to the screening box body, and the power box body is arranged near the feed end, a driving member is arranged outside the power box body, the output end of the driving member is a driving worm facing the inside of the power box body, a first worm wheel and a second worm wheel are arranged in the power box body, both of which cooperate with the driving worm wheel, the driving worm wheel is located between the first worm wheel and the second worm wheel, a first rotating shaft and a second rotating shaft which are transmission-connected to the first mounting roller and the second mounting roller are respectively arranged in the power box body, the first worm wheel is fixedly connected to the first rotating shaft, a transmission shaft located between the second rotating shaft and the driving worm wheel is arranged in the power box body, the second worm wheel is fixedly connected to the transmission shaft, the transmission shaft and the second rotating shaft are transmission-connected through a sprocket structure, when the driving worm wheel rotates, the first rotating shaft and the second rotating shaft rotate in the same direction, so that the first screen belt and the second screen belt have the same rotation direction.

[0011] Preferably, the two first mounting rollers and the two second mounting rollers located at the bottom of the screening box are in the same plane, and the first screen belt located at the bottom of the screening box is in contact with the second screen belt, and the sprocket structure includes transmission wheels respectively fixed on the second rotating shaft and the transmission shaft, a transmission chain is provided between the two transmission wheels, and a ratchet structure is provided on the transmission wheel fixed to the second rotating shaft, and the ratchet structure is used to make only the first rotating shaft and the transmission shaft rotate when the driving worm rotates in the opposite direction, and the second rotating shaft is in a stationary state.

[0012] Preferably, the rotation speeds of the first rotating shaft, the second rotating shaft and the transmission shaft are all the same.

[0013] Preferably, a feeding bin is fixedly connected to one side of the rectangular opening close to the feeding end of the screening box.

[0014] The automatic screening equipment for scented tea production provided by the embodiment of the present invention has the following beneficial effects: This equipment is based on a vibrating chassis on an elastic bracket to make the screening box vibrate and screen. The scented tea can be put into the screening box through a rectangular opening, and the scented tea will move from the feed end side to the discharge end side. The first screen belt and the second screen belt will perform multi-stage screening on the scented tea, and the scented tea of ​​corresponding individual sizes will be discharged from the first discharge structure, the second discharge structure and the third discharge structure respectively. The characteristic is that the first screen belt and the second screen belt can be controlled to operate through a driving component, thereby effectively slowing down the movement of the scented tea to the discharge end side, thereby increasing the vibration time, and thus improving the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural diagram of an automatic screening device for scented tea production provided by an embodiment of the present invention; Figure 2 An internal structural diagram of a screening box provided by an embodiment of the present invention; Figure 3 A three-dimensional internal structure diagram of a screening box provided in an embodiment of the present invention; Figure 4 A three-dimensional structural diagram of a screening box from another perspective provided by an embodiment of the present invention; Figure 5 A three-dimensional structural diagram of a graded screening component provided by an embodiment of the present invention; Figure 6 A positional relationship diagram of a first screen belt and a second screen belt provided in an embodiment of the present invention; Figure 7 A positional relationship diagram of a first baffle, a first inclined guide plate, and a second baffle provided in an embodiment of the present invention; Figure 8 This is a diagram of the internal structure of the power box provided in an embodiment of the present invention.

[0016] In the attached drawings: 1, elastic bracket; 101, support frame; 102, support spring; 2, vibration box; 3, screening box; 4, rectangular opening; 5, first screening structure; 501, first mounting roller; 502, first screen belt; 6, second screening structure; 601, second mounting roller; 602, second screen belt; 7, receiving plate; 8, first discharging structure; 801, first baffle; 802, first discharging port; 803, first guide plate; 9, second discharging structure; 901, first inclined guide plate; 902, second baffle; 903, second discharging port; 904, second guide plate Plate; 10, third discharging structure; 1001, second inclined guide plate; 1002, third discharging port; 1003, third guide plate; 11, driving assembly; 1101, power box; 1102, driving member; 12, feeding bin; 13, first discharging gap; 14, second discharging gap; 15, first filling plate; 16, second filling plate; 17, driving worm; 18, first worm wheel; 19, second worm wheel; 20, first rotating shaft; 21, second rotating shaft; 22, transmission shaft; 23, sprocket structure; 2301, transmission wheel; 2302, transmission chain; 24, cleaning port. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, an automatic screening device for scented tea production provided by an embodiment of the present invention includes an elastic support 1 used for vibrating the screen, a vibrating chassis 2 is fixedly arranged on the top of the elastic support 1, and also includes: A screening box 3, wherein the screening box 3 is installed on the top of the vibration box 2, and the screening box 3 itself is in an inclined state, and the two ends of the screening box 3 along its own length direction are respectively a feed end and a discharge end, and the height of the feed end is greater than the height of the discharge end, and a rectangular opening 4 is opened on the top of the screening box 3 along its own length direction; A graded screening component, the graded screening component is located in the screening box 3, the graded screening component includes a first screening structure 5 and a second screening structure 6, the first screening structure 5 includes four first mounting rollers 501 rotatably arranged in the screening box 3, the first mounting rollers 501 are matched with a first screen belt 502, the four first mounting rollers 501 are all located in the first screen belt 502, the first screen belt 502 between the two first mounting rollers 501 at the top corresponds to the position of the rectangular opening 4, and the spacing between the two first mounting rollers 501 is greater than the length of the rectangular opening 4, the second screening structure 6 includes a second mounting roller 601 arranged in the first screen belt 502 and in the same distribution state as the four first mounting rollers 501, the second mounting roller 601 is matched with a second screen belt 602, and a receiving plate 7 located in the first screen belt 502 is fixedly connected in the screening box 3; A first discharging structure 8 is provided at the discharging end of the screening box 3, and is used to guide the scented tea on the first mesh belt 502 out. A second discharging structure 9 and a third discharging structure 10 are provided on one side of the screening box 3 near the discharging end. The second discharging structure 9 is located between the first mesh belt 502 and the second mesh belt 602. The second discharging structure 9 is used to guide the scented tea on the second mesh belt 602 out of one side of the screening box 3. The third discharging structure 10 is provided at the tail end of the receiving plate 7, and is used to guide the scented tea on the receiving plate 7 out of the other side of the screening box 3; The driving component 11 is located outside the screening box 3. The driving component 11 is used to drive the first screen belt 502 and the second screen belt 602 to rotate. When the scented tea moves from the feed end to the discharge end on the first screen belt 502 and the second screen belt 602, the rotation direction of the first screen belt 502 and the second screen belt 602 is opposite to the moving direction of the scented tea.

[0020] In one embodiment of the present invention, the device is based on a vibrating chassis 2 on an elastic bracket 1 to vibrate a screening box 3, and scented tea can be put into the screening box 3 through a rectangular opening 4, and the scented tea will move from the feed end side to the discharge end side. The first screen belt 502 and the second screen belt 602 will perform multi-stage screening on the scented tea, and scented tea of ​​corresponding individual sizes will be discharged from the first discharge structure 8, the second discharge structure 9 and the third discharge structure 10 respectively. The characteristic is that the first screen belt 502 and the second screen belt 602 can be controlled to operate by a driving component 11, thereby effectively slowing down the movement of the scented tea to the discharge end side, thereby increasing the vibration time, and thus improving the screening effect.

[0021] In one embodiment of the present invention, Figure 1As shown, a feeding bin 12 is fixedly connected to one side of the rectangular opening 4 near the feed end of the screening box 3. The setting of the feeding bin 12 can facilitate the feeding of scented tea into the screening box 3. The elastic bracket 1 includes a support frame 101, and a plurality of support springs 102 are fixedly connected to the top of the plurality of support springs 102. The vibration chassis 2 is fixedly connected to the top of the plurality of support springs 102. A vibration motor specially used for vibration is provided in the vibration chassis 2, so that the upper screening box 3 can vibrate rapidly as a whole.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment of the present invention, a first discharging gap 13 is provided between the first screen belt 502 between the two first mounting rollers 501 near the discharging end and the screening box 3, and a second discharging gap 14 is provided between the first screen belt 502 and the second screen belt 602 at this position, the first discharging structure 8 includes a first baffle 801 fixedly connected to the screening box 3 and located in the first discharging gap 13, the screening box 3 is provided with a first discharging port 802 corresponding to the position of the first baffle 801, and the second discharging structure 9 includes two ends connected to the screening box A first inclined guide plate 901 is fixedly connected to the inner wall of the body 3, and a second baffle 902 is fixedly connected to the side of the first inclined guide plate 901 facing the first screen belt 502, and a second discharge port 903 corresponding to the position of the first inclined guide plate 901 is opened on the screening box 3. The third discharge structure 10 includes a second inclined guide plate 1001 fixedly connected to the tail end of the receiving plate 7, both ends of the second inclined guide plate 1001 are connected to the inner wall of the screening box 3, and a third discharge port 1002 corresponding to the position of the second inclined guide plate 1001 is opened on the screening box 3.

[0023] In one case of the present embodiment, first filling plates 15 are provided on both sides of the top of the first screen belt 502, and second filling plates 16 are provided on both sides of the top of the second screen belt 602. The first filling plates 15 and the second filling plates 16 are fixed on the inner walls on both sides of the screening box 3. The first filling plates 15 and the second filling plates 16 are respectively used to fill the gaps between the first screen belt 502 and the second screen belt 602 and the inner walls of the side screening box 3. The screening box 3 is externally fixedly connected with a first guide plate 803 corresponding to the position of the first discharge port 802, the screening box 3 is externally fixedly connected with a second guide plate 904 corresponding to the position of the second discharge port 903, and the screening box 3 is externally fixedly connected with a third guide plate 1003 corresponding to the position of the third discharge port 1002. After the scented tea enters the screening box 3 from the rectangular opening 4, it will first fall onto the first screen belt 502. Accompanied by the vibration, a part of the scented tea The scented tea will move up and down from the first screen belt 502 and enter the first discharging gap 13. Due to the blocking effect of the first baffle plate 801, these scented teas will enter the first discharging port 802 and then be discharged from the first guide plate 803. Of course, some of the scented tea will fall from the first screen belt 502 to the second screen belt 602, and the second screen belt 602 will screen it again. Some of the scented tea will slide from the second screen belt 602 to the second discharging gap 14, and will fall onto the first inclined guide plate 901 under the blocking effect of the second baffle plate 902, and then be discharged from the second discharging port 903 and the second guide plate 904. In addition, a small amount of scented tea will pass through the second screen belt 602 and fall onto the receiving plate 7. Since the receiving plate 7 is also inclined, this part of the scented tea will naturally gather at the second inclined guide plate 1001, and then be discharged from the third discharging port 1002 and the third guide plate 1003. The above structure realizes multi-level screening of scented tea.

[0024] like Figure 1 and Figure 8As shown, as a preferred embodiment of the present invention, the driving assembly 11 includes a power box 1101 fixedly connected to the screening box 3, and the power box 1101 is arranged close to the feeding end, and a driving member 1102 is arranged outside the power box 1101, and the driving member 1102 can be in the form of a motor, and the output end of the driving member 1102 is a driving worm 17 facing the inside of the power box 1101, and the power box 1101 is provided with a first worm wheel 18 and a second worm wheel 19 both matching with the driving worm 17, and the driving worm 17 is located between the first worm wheel 18 and the second worm wheel 19, and the power box 1101 01 is respectively provided with a first rotating shaft 20 and a second rotating shaft 21 which are transmission-connected to the first mounting roller 501 and the second mounting roller 601, the first worm gear 18 is fixedly connected to the first rotating shaft 20, a transmission shaft 22 located between the second rotating shaft 21 and the driving worm 17 is provided in the power box 1101, the second worm gear 19 is fixedly connected to the transmission shaft 22, the transmission shaft 22 and the second rotating shaft 21 are transmission-connected via a sprocket structure 23, when the driving worm 17 rotates, the first rotating shaft 20 and the second rotating shaft 21 have the same rotation direction, so that the first screen belt 502 and the second screen belt 602 have the same rotation direction.

[0025] In one case of this embodiment, for the sake of convenience, according to Figure 2The rotation direction of the first screen belt 502 and the second screen belt 602 is explained from the perspective shown, and it is stipulated that when the driving worm 17 rotates forward, the first screen belt 502 and the second screen belt 602 rotate counterclockwise. In this case, the downward movement speed of the scented tea can be slowed down, and the self-locking effect of the worm gear can be used to make the first screen belt 502 and the second screen belt 602 stable in a static state. However, in actual situations, because the shape of individual scented tea is irregular, it is easy for individual scented tea to be stuck in a certain sieve hole when screening with a sieve, and this state is also very stable and can only be removed by clamping with external force. Therefore, the screening box is located The two first installation rollers 501 and the two second installation rollers 601 at the bottom of the body 3 are in the same plane, and the first screen belt 502 located at the bottom of the screening box 3 is in contact with the second screen belt 602. The sprocket structure 23 includes a transmission wheel 2301 fixedly arranged on the second rotating shaft 21 and the transmission shaft 22, respectively. A transmission chain 2302 is arranged between the two transmission wheels 2301, and a ratchet structure is arranged on the transmission wheel 2301 fixed to the second rotating shaft 21. The ratchet structure is used to make only the first rotating shaft 20 and the transmission shaft 22 rotate when the driving worm 17 rotates in the reverse direction, and the second rotating shaft 21 is in a stationary state. When the driving worm 17 rotates in the reverse direction, When the first mesh belt 502 rotates clockwise, the second mesh belt 602 is stationary due to the ratchet structure, and the worm gear can reduce the rotation speed, so that the first mesh belt 502 rotates slowly. At this time, the first mesh belt 502 and the second mesh belt 602 at the bottom are in a fitted state. If the individual scented tea is stuck on the screen, some branches and leaves must be inserted into the screen holes. The first mesh belt 502 rotates while the second mesh belt 602 is stationary, which will inevitably cause the two to move relative to each other, and can rub and cut some stuck branches and leaves of the scented tea, so that the stuck scented tea can be detached. Of course, the ratchet structure will The second mesh belt 602 cannot self-lock, but the second mesh belt 602 has resistance in its own operation, and the scented tea falls in sequence, which results in a smaller amount of scented tea on the second mesh belt 602, that is, the material force is smaller, so the self-locking effect of the second mesh belt 602 is dispensable, and for the problem of the scented tea stuck on the second mesh belt 602, the position of the second mesh belt 602 can be adjusted by rotating the driving worm 17 forward, and then the reverse-operating first mesh belt 502 can be used to clean it. The rotation speeds of the first rotating shaft 20, the second rotating shaft 21 and the transmission shaft 22 are all the same, which can ensure that the first mesh belt 502 and the second mesh belt 602 work synchronously. Figure 2 As shown, a cleaning port 24 is provided on one side of the bottom of the screening box 3 near the discharging end, and the cleaning port 24 can discharge some broken residues of the scented tea.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic screening device for scented tea production, comprising an elastic support (1) used for vibrating the screen, a vibrating chassis (2) being fixedly arranged on the top of the elastic support (1), characterized in that: Also includes: A screening box (3), the screening box (3) being mounted on the top of the vibration machine box (2), and the screening box (3) itself being in an inclined state, the two ends of the screening box (3) along its own length direction are respectively a feed end and a discharge end, the height of the feed end is greater than the height of the discharge end, and a rectangular opening (4) arranged along its own length direction is opened on the top of the screening box (3); A graded screening component, the graded screening component is located in a screening box (3), the graded screening component comprises a first screening structure (5) and a second screening structure (6), the first screening structure (5) comprises four first mounting rollers (501) rotatably arranged in the screening box (3), a first screen belt (502) is arranged on the first mounting rollers (501), the four first mounting rollers (501) are all located in the first screen belt (502), and the first screen belt (502) is located between the two first mounting rollers (501) at the top. The belt (502) corresponds to the position of the rectangular opening (4), and the spacing between the two first mounting rollers (501) is greater than the length of the rectangular opening (4); the second screening structure (6) includes a second mounting roller (601) arranged in the first screen belt (502) and having the same distribution state as the four first mounting rollers (501); the second mounting roller (601) is matched with the second screen belt (602); and a receiving plate (7) located in the first screen belt (502) is fixedly connected in the screening box (3); A first discharging structure (8), the first discharging structure (8) being arranged at the discharging end of the screening box (3), the first discharging structure (8) being used to discharge the scented tea on the first mesh belt (502), a second discharging structure (9) and a third discharging structure (10) being arranged on one side of the screening box (3) close to the discharging end, the second discharging structure (9) being arranged between the first mesh belt (502) and the second mesh belt (602), the second discharging structure (9) being used to discharge the scented tea on the second mesh belt (602) from one side of the screening box (3), the third discharging structure (10) being arranged at the rear end of the receiving plate (7), the third discharging structure (10) being used to discharge the scented tea on the receiving plate (7) from the other side of the screening box (3); A driving assembly (11) is located outside the screening box (3). The driving assembly (11) is used to drive the first screen belt (502) and the second screen belt (602) to rotate. When the scented tea moves from the feed end to the discharge end on the first screen belt (502) and the second screen belt (602), the rotation direction of the first screen belt (502) and the second screen belt (602) is opposite to the movement direction of the scented tea.

2. The automatic screening equipment for scented tea production according to claim 1, characterized in that: A first discharge gap (13) is provided between the first screen belt (502) between the two first installation rollers (501) close to the discharge end and the screening box (3), and a second discharge gap (14) is provided between the first screen belt (502) and the second screen belt (602) at this position; The first discharging structure (8) comprises a first baffle (801) fixedly connected to the screening box (3) and located in the first discharging gap (13); the screening box (3) is provided with a first discharging port (802) corresponding to the position of the first baffle (801); The second discharging structure (9) comprises a first inclined guide plate (901) whose two ends are fixedly connected to the inner wall of the screening box (3); a second baffle plate (902) vertically arranged with respect to the first inclined guide plate (901) is fixedly connected to one side of the first inclined guide plate (901) facing the first screen belt (502); and a second discharging port (903) corresponding to the position of the first inclined guide plate (901) is provided on the screening box (3); The third discharging structure (10) comprises a second inclined guide plate (1001) fixedly connected to the rear end of the receiving plate (7), both ends of the second inclined guide plate (1001) being connected to the inner wall of the screening box (3), and a third discharging port (1002) corresponding to the position of the second inclined guide plate (1001) is provided on the screening box (3).

3. The automatic screening equipment for scented tea production according to claim 2, characterized in that: First filling plates (15) are provided on both sides of the top of the first screen belt (502), and second filling plates (16) are provided on both sides of the top of the second screen belt (602). The first filling plates (15) and the second filling plates (16) are fixed on the inner walls on both sides of the screening box (3). The first filling plates (15) and the second filling plates (16) are respectively used to fill the gaps between the first screen belt (502) and the second screen belt (602) and the inner walls of the side screening box (3).

4. The automatic screening equipment for scented tea production according to claim 2, characterized in that: The screening box (3) is externally fixedly connected to a first material guide plate (803) corresponding to the position of the first discharge port (802), the screening box (3) is externally fixedly connected to a second material guide plate (904) corresponding to the position of the second discharge port (903), and the screening box (3) is externally fixedly connected to a third material guide plate (1003) corresponding to the position of the third discharge port (1002).

5. The automatic screening equipment for scented tea production according to claim 1, characterized in that: The driving assembly (11) comprises a power housing (1101) fixedly connected to a screening housing (3), and the power housing (1101) is arranged close to a feed end, a driving member (1102) is arranged outside the power housing (1101), an output end of the driving member (1102) is a driving worm (17) facing the inside of the power housing (1101), a first worm gear (18) and a second worm gear (19) are arranged inside the power housing (1101), the driving worm (17) is located between the first worm gear (18) and the second worm gear (19), and a first mounting roller (501) and a second mounting roller (502) are arranged inside the power housing (1101). The first rotating shaft (20) and the second rotating shaft (21) are transmission-connected by two mounting rollers (601), the first worm gear (18) is fixedly connected to the first rotating shaft (20), a transmission shaft (22) is arranged in the power box (1101) and is located between the second rotating shaft (21) and the driving worm (17), the second worm gear (19) is fixedly connected to the transmission shaft (22), the transmission shaft (22) and the second rotating shaft (21) are transmission-connected via a sprocket structure (23), when the driving worm (17) rotates, the first rotating shaft (20) and the second rotating shaft (21) rotate in the same direction, so that the first screen belt (502) and the second screen belt (602) rotate in the same direction.

6. The automatic screening equipment for scented tea production according to claim 5, characterized in that: The two first installation rollers (501) and the two second installation rollers (601) located at the bottom of the screening box (3) are located in the same plane, and the first screen belt (502) located at the bottom of the screening box (3) is in contact with the second screen belt (602). The sprocket structure (23) includes a transmission wheel (2301) fixedly arranged on the second rotating shaft (21) and the transmission shaft (22), respectively. A transmission chain (2302) is arranged between the two transmission wheels (2301), and a ratchet structure is arranged on the transmission wheel (2301) fixed to the second rotating shaft (21). The ratchet structure is used to make only the first rotating shaft (20) and the transmission shaft (22) rotate when the driving worm (17) rotates in the opposite direction, and the second rotating shaft (21) is in a stationary state.

7. The automatic screening equipment for scented tea production according to claim 5, characterized in that: The first rotating shaft (20), the second rotating shaft (21) and the transmission shaft (22) all have the same rotation speed.

8. The automatic screening equipment for scented tea production according to claim 1, characterized in that: A feeding bin (12) is fixedly connected to one side of the rectangular opening (4) close to the feeding end of the screening box (3).

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