Screening device for green tea processing

Abstract

The screening device for green tea processing comprises a vibration bin, a supporting frame and a vibration motor, a plurality of first supporting plates are fixed to the side walls of the two sides of the vibration bin, a first spring is installed at the bottom of each first supporting plate, and the bottoms of the first springs are fixedly connected with the top of the supporting frame; the vibration bin is connected with the supporting frame through a first spring, the vibration motor is installed on the side wall of the vibration bin, a feeding assembly used for conveying green tea into the vibration bin is further arranged at the top of the vibration bin, a stirring rod is further rotationally arranged on the vibration bin, and a driving assembly used for driving the stirring rod to rotate is arranged on the supporting frame. And a first-stage screening net and a second-stage screening net are further installed in the vibration bin, the second-stage screening net is installed at the bottom of the first-stage screening net, and the problems that an existing screening device cannot screen impurities such as small disintegrating residues, the disintegrating residues and screened tea leaves fall into the screening bin together, and the screening efficiency of green tea is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of tea sieving equipment, and in particular to a sieving device for green tea processing. Background Technology

[0002] Green tea is an essential beverage for many people in modern times. It has a natural shape and bright green color. It is made from the new leaves or buds of the tea tree and is processed through processes such as fixation, shaping, and drying. In order to control the quality of green tea, it often needs to be sieved during the processing. The sieving device can effectively achieve the filtering effect.

[0003] Prior art document CN221638735U provides a green tea quality grading sieving device, including: a top plate and a sieving chamber. Multiple rotating rods are movably embedded inside the top plate. First support plates are fixedly installed on both sides of the outer surface of the sieving chamber, and second support plates are fixedly installed on both sides of the outer surface of the sieving chamber. One rotating rod is movably embedded inside the first support plate on one side, and the other rotating rod is movably embedded inside the second support plate on the other side. A dispersing chamber is movably fitted onto the outer surface of the multiple rotating rods near the center. A rotary motor is fixedly installed on one side of the outer surface of the dispersing chamber, and a rotating shaft is movably embedded inside the dispersing chamber. This device solves the problem that green tea easily clumps and accumulates during harvesting and transportation, and existing devices lack the necessary dispersing mechanism, requiring workers to spread the green tea evenly on the device during use, resulting in a cumbersome operation process.

[0004] The aforementioned comparative document describes the sieving of green tea by designing a dispersing chamber and a sieving chamber, which separates impurities from the green tea. However, during the sieving process, not only large pieces of leaves and branches are present, but also smaller fragments or small insects. Although the aforementioned document can sieve large pieces of leaves and branches, it cannot effectively sieve small fragments and other impurities. These fragments will fall into the sieving chamber along with the sieved tea leaves. The aforementioned document does not effectively sieve these fragments. To address these issues, a solution is proposed below. Utility Model Content

[0005] The purpose of this invention is to provide a sieving device for green tea processing to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A sieving device for green tea processing includes a vibrating chamber, a support frame, and a vibrating motor. Multiple support plates are fixed to the side walls of the vibrating chamber, and a spring is installed at the bottom of each support plate. The bottom of the spring is fixedly connected to the top of the support frame. The vibrating chamber is connected to the support frame via the springs. The vibrating motor is mounted on the side wall of the vibrating chamber. A feeding assembly for conveying green tea into the vibrating chamber is also provided at the top of the vibrating chamber. A stirring rod is rotatably mounted on the vibrating chamber. A driving assembly for rotating the stirring rod is provided on the support frame. A primary sieve and a secondary sieve are installed inside the vibrating chamber. The secondary sieve is installed at the bottom of the primary sieve. The vibrating chamber is divided into a sieving area, a collection area, and an impurity filtration area by the primary and secondary sieves. The outer wall of the vibrating chamber has extension areas corresponding to the sieve area and the collection area, which are staggered. A discharge pipe is provided at the bottom of each extension area, and a second discharge pipe is provided at the bottom of the vibrating chamber.

[0008] Preferably, the feeding assembly includes a second support plate and a discharge hopper. The inner wall of the vibrating chamber is symmetrically provided with grooves, one end of each groove penetrating the side wall of the vibrating chamber. The second support plate is slidably disposed within the two grooves. The discharge hopper is installed on the top of the second support plate. The second support plate has a through hole corresponding to the discharge hopper. Two locking blocks are fixed on one side of the second support plate, and the two locking blocks are slidably disposed within the grooves. The vibrating chamber is provided with fasteners for fixing the second support plate.

[0009] Preferably, the fastener includes a locking bolt and a butterfly nut, the top of the vibration chamber has a connecting hole communicating with the slide groove, one end of the locking bolt passes through the connecting hole, the locking bolt cooperates with the locking block bolt, and the butterfly nut is fixed to the top of the nut of the locking bolt.

[0010] Preferably, the drive assembly includes two support plates and a drive motor mounted on one of the support plates. Both support plates are fixed on the support frame. Both ends of the stirring rod are fixed with connecting rods. The two connecting rods are rotatably mounted on the two support plates respectively. The output shaft of the drive motor passes through the support plates and is fixedly connected to the connecting rod on one side.

[0011] Preferably, the stirring rod is located behind the unloading hopper, and the top of the vibrating chamber is provided with an anti-collision groove corresponding to the connecting rod. Several rubber stirring plates are fixed on the stirring rod, and the rubber stirring plates are arranged in an alternating manner.

[0012] Preferably, both the primary and secondary screening screens are inclined and arranged in the vibrating chamber. Both the primary and secondary screening screens have a two-section inclined structure, and the inclination angle of the two sections of the primary and secondary screening screens is greater than that of the first section. The bottom of the two inclined sections is connected to the extension area.

[0013] Beneficial effects: When green tea needs to be sieved, the feeding assembly can be installed on the vibrating chamber first, and the green tea can be poured into the discharge hopper. The green tea can then be discharged through the discharge hopper into the primary screening screen of the vibrating chamber. At this time, the vibration motor can be started, which drives the vibrating chamber to vibrate. The vibrating chamber can drive the primary and secondary screening screens to vibrate, thus achieving two-stage sieving of the material. First, the green tea is filtered through the primary screening screen with large mesh, and large particles such as branches are sieved out. Then, the green tea is retained through the secondary screening screen, allowing small particles to be filtered out. Through two sieving processes, compared with existing technologies, green tea can be sieved more thoroughly, minimizing impurities in the green tea. During the sieving process, the stirring rod can be started to break up any clumps of green tea, preventing them from piling up and hindering sieving. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0015] Figure 2 This is a top view schematic diagram used to illustrate the structure of the vibration chamber in an embodiment;

[0016] Figure 3 This is a schematic diagram illustrating the location of the feeding assembly and the vibrating chamber in a partial cross-sectional view, as shown in the embodiment.

[0017] Figure 4 This is a top view schematic diagram used to illustrate the drive assembly and stirring rod in an embodiment;

[0018] Figure 5 This is a schematic diagram illustrating the structure of the primary and secondary screening screens as an example.

[0019] Reference numerals in the attached diagram: 1. Vibrating chamber; 2. Support frame; 3. Vibrating motor; 4. Support plate one; 5. Spring one; 6. Feeding assembly; 61. Support plate two; 62. Discharge hopper; 63. Locking block; 64. Fastener; 641. Locking bolt; 642. Butterfly nut; 7. Stirring rod; 8. Drive assembly; 81. Support plate; 82. Drive motor; 83. Connecting rod; 84. Rubber stirring plate; 9. Primary screening screen; 10. Secondary screening screen; 11. Extension zone. Detailed Implementation

[0020] See Figures 1 to 5As shown, a sieving device for green tea processing includes a vibrating chamber 1, a support frame 2, and a vibrating motor 3. Multiple support plates 4 are fixed on both side walls of the vibrating chamber 1. A spring 5 is installed at the bottom of each support plate 4. The bottom of the spring 5 is fixedly connected to the top of the support frame 2. The vibrating chamber 1 is connected to the support frame 2 through the spring 5. The vibrating motor 3 is installed on the side wall of the vibrating chamber 1. The top of the vibrating chamber 1 is also provided with a feeding component 6 for conveying green tea into the vibrating chamber 1. When it is necessary to sieve the green tea, the feeding component 6 can be installed on the vibrating chamber 1 first.

[0021] The feeding assembly 6 includes a second support plate 61 and a discharge hopper 62. The inner wall of the vibrating chamber 1 is symmetrically provided with sliding grooves, one end of which penetrates the side wall of the vibrating chamber 1. The second support plate 61 is slidably disposed in the two sliding grooves. The discharge hopper 62 is installed on the top of the second support plate 61. The second support plate 61 is provided with a through hole corresponding to the discharge hopper 62. When the discharge hopper 62 needs to be installed, the second support plate 61 can be slid into the two sliding grooves through one side of the vibrating chamber 1. The two sliding grooves support and limit the second support plate 61. The second support plate 61 drives the discharge hopper 62 installed on the top to move horizontally along the sliding grooves to the central positioning position of the vibrating chamber 1, thereby facilitating subsequent unloading.

[0022] Two locking blocks 63 are fixed on one side of the support plate 2 61. The two locking blocks 63 are slidably arranged in the slide groove. The vibration chamber 1 is provided with fasteners 64 for fixing the support plate 2 61. When the support plate 2 61 moves to the designated position, the locking blocks 63 on the side wall of the support plate 2 61 can be fixed by the fasteners 64. The locking blocks 63 are used to limit the installation of the support plate 2 61.

[0023] Fastener 64 includes a locking bolt 641 and a butterfly nut 642. The top of the vibration chamber 1 has a connecting hole communicating with the slide groove. One end of the locking bolt 641 passes through the connecting hole and is bolted to the locking block 63. The butterfly nut 642 is fixed to the top of the bolt head of the locking bolt 641. When it is necessary to fix the locking block 63, the locking bolt 641 can be passed through the connecting hole. The locking bolt 641 passing through the connecting hole will cooperate with the threaded hole on the top of the locking block 63. The locking block 63 is fixed by the locking bolt 641. When it is necessary to disassemble the second support plate 61, the top of the butterfly nut 642 is fixedly connected to the locking bolt 641. Therefore, the locking bolt 641 can be rotated by rotating the butterfly nut 642 to achieve quick disassembly and separation from the locking block 63. Then the second support plate 61 can be seen to be taken out from the slide groove.

[0024] When feeding green tea into the vibrating chamber 1, the green tea can first be poured into the discharge hopper 62. The green tea will fall into the vibrating chamber 1 through the discharge hopper 62. The vibrating chamber 1 is also equipped with a primary screening screen 9 and a secondary screening screen 10. The sieve holes in the primary screening screen 9 are larger than those in the secondary screening screen 10. The secondary screening screen 10 is installed at the bottom of the primary screening screen 9. The vibrating chamber 1 is divided into a screening area, a collection area, and an impurity filtration area by the primary screening screen 9 and the secondary screening screen 10. After the green tea enters the vibrating chamber 1, the vibration motor can be started, and the vibration motor will drive the... The vibrating chamber 1 vibrates, which in turn drives the primary screening screen 9 and the secondary screening screen 10 to vibrate. The material is screened in two stages through the primary screening screen 9 and the secondary screening screen 10. First, the green tea is filtered through the primary screening screen 9 with large mesh, and large particles such as branches in the green tea are screened out. Then, the green tea is intercepted and collected through the secondary screening screen 10, so that small particles in the green tea can be filtered out and enter the impurity filtration zone at the bottom of the vibrating chamber 1. Through two screenings, impurities in the green tea are reduced as much as possible.

[0025] The outer wall of the vibrating chamber 1 is provided with extension areas 11 corresponding to the screen area and the collection area. The two extension areas 11 are staggered, and each extension area 11 has a discharge pipe at its bottom. The primary screening screen 9 and the secondary screening screen 10 are both inclinedly arranged inside the vibrating chamber 1. The primary screening screen 9 and the secondary screening screen 10 are both in a two-section inclined structure. The primary screening screen 9 and the secondary screening screen 10 are fixed in the vibrating chamber 1 in a continuous two-section inclined shape, with the first section having an inclination angle of 15°±1° and the second section having an inclination angle of 30°±1°. The bottom of the second inclined section is connected to the extension area 11. By designing the primary screening screen 9 and the secondary screening screen 10 as inclined structures, it is easier for green tea to be shaken and screened on the primary screening screen 9 and the secondary screening screen 10, so that the green tea can be better processed. The extension zone 11 at the bottom moves. By designing the primary screening screen 9 and the secondary screening screen 10 as inclined structures at both ends, the inclination of the first section of the inclined structure is relatively gentle. After the tea leaves are screened by the first section (15° inclination angle) of the primary screening screen 9, the qualified green tea enters the second section of the steeply increasing inclination angle zone (30°) under the drive of elliptical trajectory vibration with an amplitude of 2mm and a frequency of 25Hz. The flow rate increases from 0.2m / s to 0.5m / s. At this time, the relatively inclined structure allows the green tea to move quickly into the extension zone 11. The discharge pipe 1 at the bottom of the extension zone 11 is used to discharge impurities and green tea. The bottom of the vibrating chamber 1 is also equipped with a discharge pipe 2. The discharge pipe 2 at the bottom of the vibrating chamber 1 can discharge the small particulate impurities that have been screened out.

[0026] A stirring rod 7 is also rotatably mounted on the vibrating chamber 1, and a drive assembly 8 is provided on the support frame 2 to drive the stirring rod 7 to rotate. When green tea is being screened, the green tea that falls into the primary screening screen 9 from the discharge hopper 62 often accumulates together. Vibration does not effectively disperse the green tea. Therefore, by activating the drive assembly 8, the drive assembly 8 can drive the stirring rod 7 to rotate, thereby breaking up the accumulated green tea and preventing it from accumulating together, which is not conducive to screening.

[0027] The drive assembly 8 includes two support plates 81 and a drive motor 82 mounted on one of the support plates 81. Both support plates 81 are fixed to the support frame 2. Connecting rods 83 are fixed to both ends of the stirring rod 7. The two connecting rods 83 are rotatably mounted on the two support plates 81 respectively. The output shaft of the drive motor 82 passes through the support plate 81 and is fixedly connected to the connecting rod 83 on one side. The stirring rod 7 is located behind the discharge hopper 62. Several rubber stirring blades 84 are fixed on the stirring rod 7. The rubber stirring blades 84 are arranged alternately. When it is necessary to stir and disperse the tea leaves, the drive motor 82 can be started first. The output shaft of the drive motor 82 can drive the connecting rod 83 to rotate. The connecting rod 83 can drive the stirring rod 7 to rotate, and the stirring rod 7 can drive each rubber stirring plate 84 to rotate. The stirring plates 84 can agitate and disperse the tea leaves. The rubber stirring plates 84 and the primary screening screen 9 are designed to be non-contact, leaving a gap for subsequent vibrating screening. The flexible structure of the rubber stirring plates 84 prevents damage to the tea leaves when stirring. The top of the vibrating chamber 1 is also provided with anti-collision grooves corresponding to the connecting rod 83. Since the vibrating chamber 1 will shake when vibrating screening, the designed anti-collision grooves leave a shaking gap between the vibrating chamber 1 and the connecting rod 83, preventing the vibrating chamber 1 from directly hitting the connecting rod 83.

Claims

1. A sieving device for green tea processing, comprising a vibrating chamber (1), a support frame (2), and a vibrating motor (3), characterized in that, Multiple support plates (4) are fixed on both side walls of the vibrating chamber (1). A spring (5) is installed at the bottom of each support plate (4). The bottom of the spring (5) is fixedly connected to the top of the support frame (2). The vibrating chamber (1) is connected to the support frame (2) through the spring (5). The vibrating motor (3) is installed on the side wall of the vibrating chamber (1). The top of the vibrating chamber (1) is also provided with a feeding assembly (6) for conveying green tea into the vibrating chamber (1). A stirring rod (7) is also rotatably installed on the vibrating chamber (1). The support frame (2) is provided with a stirring rod for conveying green tea into the vibrating chamber (1). The vibrating chamber (1) is equipped with a drive assembly (8) for rotating the stirring rod (7). A primary screening screen (9) and a secondary screening screen (10) are also installed inside the vibrating chamber (1). The secondary screening screen (10) is installed at the bottom of the primary screening screen (9). The vibrating chamber (1) is divided into a screening area, a collection area and an impurity filtration area by the primary screening screen (9) and the secondary screening screen (10). The outer wall of the vibrating chamber (1) is provided with an extension area (11) corresponding to the screening area and the collection area. The two extension areas (11) are staggered. The bottom of each of the two extension areas (11) is provided with a discharge pipe one. The bottom of the vibrating chamber (1) is also provided with a discharge pipe two.

2. The sieving device for green tea processing according to claim 1, characterized in that, The feeding assembly (6) includes a second support plate (61) and a discharge hopper (62). The inner wall of the vibrating chamber (1) is symmetrically provided with sliding grooves. One end of each of the two sliding grooves penetrates the side wall of the vibrating chamber (1). The second support plate (61) is slidably disposed in the two sliding grooves. The discharge hopper (62) is installed on the top of the second support plate (61). The second support plate (61) is provided with a through hole corresponding to the discharge hopper (62). Two locking blocks (63) are fixed on one side of the second support plate (61). The two locking blocks (63) are slidably disposed in the sliding grooves. The vibrating chamber (1) is provided with fasteners (64) for fixing the second support plate (61).

3. The sieving device for green tea processing according to claim 2, characterized in that, The fastener (64) includes a locking bolt (641) and a butterfly nut (642). The top of the vibration chamber (1) is provided with a connecting hole that communicates with the slide. One end of the locking bolt (641) passes through the connecting hole. The locking bolt (641) is bolted to the locking block (63). The butterfly nut (642) is fixed to the top of the nut of the locking bolt (641).

4. A sieving device for green tea processing according to claim 2, characterized in that, The drive assembly (8) includes two support plates (81) and a drive motor (82) mounted on one of the support plates (81). Both support plates (81) are fixed on the support frame (2). Both ends of the stirring rod (7) are fixed with connecting rods (83). The two connecting rods (83) are rotatably mounted on the two support plates (81). The output shaft of the drive motor (82) passes through the support plate (81) and is fixedly connected to the connecting rod (83) on one side.

5. A sieving device for green tea processing according to claim 4, characterized in that, The stirring rod (7) is located behind the unloading hopper (62). The top of the vibrating chamber (1) is also provided with an anti-collision groove corresponding to the connecting rod (83). Several rubber stirring plates (84) are fixed on the stirring rod (7), and the rubber stirring plates (84) are arranged in an alternating manner.

6. A sieving device for green tea processing according to claim 1, characterized in that, The primary screening mesh (9) and the secondary screening mesh (10) are both inclined and arranged in the vibrating chamber (1). The primary screening mesh (9) and the secondary screening mesh (10) are both in two inclined sections. The inclination angle of the two sections of the primary screening mesh (9) and the secondary screening mesh (10) is greater than the inclination angle of the first section. The bottom of the two inclined sections is connected to the extension area (11).

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