Impurity screening equipment for tea production

Abstract

The utility model discloses sundry screening equipment for tea production, which relates to the technical field of tea production and comprises a fixing frame, a screening box is arranged in the fixing frame, swing arms are arranged at two ends of two sides of the screening box, a feeding bin is arranged at one end of the upper surface of the screening box, and a connecting frame is fixedly connected to the outer side of the feeding bin. The servo motor is adopted to drive the driving shaft to rotate, when the driving shaft rotates, the pull rods drive the screening box to swing back and forth, the first screen and the second screen are arranged, and the screen meshes of the first screen and the second screen are different, so that double filtering of tea can be achieved, and the screening effect of the device is improved. And through the arrangement of a first discharging port I and a second discharging port, discharging of the device is facilitated, screening is conducted through swinging, breaking of the tea leaves can be effectively reduced, and the use effect of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of tea production technology, and in particular relates to a waste screening device for tea production. Background Technology

[0002] Tea processing involves steps such as fixation, rolling, drying, sieving, and packaging. Finished tea products need to be tested for indicators such as powder and broken tea content. To ensure the quality requirements of finished tea products, the dried tea leaves need to be sieved. The tea leaves are sieved into different grades according to different mesh sizes. Currently, tea sieving in the tea processing industry is mainly done manually, which is time-consuming, labor-intensive, and has low production efficiency.

[0003] An existing tea sieving device, with application number 201820393742.9, includes a base, a sieving mechanism, a conveying mechanism, a driving mechanism, and a collection box. The sieving mechanism conveys tea raw materials into a sieving shaft. A first motor and a second motor drive the sieving shaft and sieving cylinder to rotate alternately. The sieving shaft filters out coarse and old leaves, while the sieving cylinder filters out tea stems and tender tea leaves. The filtered tender tea leaves, tea stems, and coarse and old leaves are collected in separate collection boxes for tender tea leaves, tea stems, and coarse and old leaves, respectively, and then discharged. This invention overcomes the problems of difficult separation, low purity, and low grade in traditional tea processing. It features a simple structure, convenient and quick sieving, high separation efficiency, and improved purity and grade of tea.

[0004] During use, the above-mentioned device filters and screens tea leaves by driving the screening shaft and screening cylinder to rotate alternately through the first motor and the second motor. When the rotation speed is too fast, it will cause the tea leaves to break, thereby reducing the yield of tea leaves. To address this problem, we provide a tea production impurity screening device. Utility Model Content

[0005] The purpose of this utility model is to provide a waste screening device for tea production. It achieves tea screening by driving the vibration and oscillation of the feeding hopper and screening box through a vibration motor and a servo motor. This solves the problem of severe tea breakage caused by mechanically rotating the screening screen in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a waste screening device for tea production, including a fixed frame, a screening box inside the fixed frame, swing arms at both ends of both sides of the screening box, a feeding bin at one end of the upper surface of the screening box, a connecting frame fixedly connected to the outside of the feeding bin, and pull rods on both sides of the lower surface of the screening box.

[0008] Wherein: both ends of the connecting frame are fixedly connected to a fixing block, and the other end of the fixing block is movably connected to a limiting rod. The bottom end of the limiting rod extends to the lower surface of the fixing frame and is threaded with an adjusting nut. The outer side of the limiting rod is fitted with a spring, and the two ends of the spring are fixedly connected to the lower surface of the fixing block and the upper surface of the fixing frame, respectively.

[0009] The present invention is further configured such that a filter screen is fixedly connected inside the feeding hopper, a vibration motor is fixedly connected to both sides of the feeding hopper, and the bottom end of the feeding hopper is adapted to the inner wall of the screening box.

[0010] The present invention is further configured such that both ends of the swing arm are fixedly connected to hinge blocks, and each hinge block at one end of the swing arm is movably connected to a hinge seat. Each hinge seat is fixedly installed on the lower surface of the fixed frame, and each hinge block at the other end of the swing arm is fixedly connected to a fixing bolt via a bearing. One end of each fixing bolt is fixedly installed on the side of the screening box.

[0011] The present invention is further configured such that a screen one is fixedly connected to the middle of the inner wall of the screening box, a screen two is fixedly connected to the lower surface of the inner wall of the screening box, a first discharge port one is fixedly connected to one side of one end of the screening box, the first discharge port one is adapted to the upper surface of the screen one, and a second discharge port is fixedly connected to the other side of one end of the screening box, the second discharge port being adapted to the upper surface of the screen two.

[0012] The present invention is further configured such that a servo motor is fixedly connected to one side of one end of the fixed frame, a drive shaft is fixedly connected to the output end of the servo motor, and one end of the drive shaft is fixedly installed on the other side of the fixed frame through a bearing and a bearing seat.

[0013] The present invention is further configured such that both ends of the pull rod are fixedly connected to a fixing sleeve, the fixing sleeve at one end of the pull rod is fixedly installed on the side of the drive shaft by bearings, the fixing sleeve at the other end of the pull rod is fixedly connected to a fixing shaft by bearings, and both ends of the fixing shaft are fixedly installed on the lower surface of the screening box by fixing seats.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model utilizes a vibration motor, which, during operation, drives the feeding hopper to vibrate along the upper surface of the fixed frame using the limiting rod as a trajectory. This causes the tea leaves inside the feeding hopper to fall into the screening box after being filtered by the filter screen. Furthermore, the included spring enhances the vibration efficiency of the device during use, thereby improving its filtration effect. Additionally, the included adjusting nut, in conjunction with the threaded limit of the limiting rod, allows for adjustment of the spring force, thus improving the flexibility of the device.

[0016] 2. This utility model uses a servo motor to drive the drive shaft to rotate. When the drive shaft rotates, it will drive the screening box to swing back and forth through the pull rod. Through the provided screen one and screen two, which have different mesh sizes, the tea can be filtered twice, which is beneficial to improving the screening effect of the device. Furthermore, the provided first discharge port one and second discharge port facilitate the discharge of the device. The sieving by swinging can effectively reduce the breakage of tea leaves, which is beneficial to improving the use effect of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

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

[0019] Figure 2 This is a schematic cross-sectional view of the screening box structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the swing arm structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the swing limiting structure of the screening box of this utility model;

[0022] Figure 5 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0023] In the attached diagram: 1. Fixed frame; 101. Servo motor; 102. Drive shaft; 2. Screening box; 201. Screen one; 202. Screen two; 203. First discharge port one; 204. Second discharge port; 3. Swing arm; 301. Hinge block; 302. Hinge seat; 303. Fixing bolt; 4. Feeding bin; 401. Filter screen; 402. Vibration motor; 5. Connecting frame; 501. Fixed block; 502. Limiting rod; 503. Adjusting nut; 504. Spring; 6. Pull rod; 601. Fixing sleeve; 602. Fixing shaft; 603. Fixing seat. Detailed Implementation

[0024] The technical solutions of the present utility model will now be described with reference to the accompanying drawings of the embodiments. The described embodiments are only some embodiments of the present utility model, and not all embodiments:

[0025] Please see Figures 1-5This utility model is a waste screening device for tea production, including a fixed frame 1, a screening box 2 inside the fixed frame 1, swing arms 3 at both ends of both sides of the screening box 2, a feeding bin 4 at one end of the upper surface of the screening box 2, a connecting frame 5 fixedly connected to the outside of the feeding bin 4, and pull rods 6 on both sides of the lower surface of the screening box 2.

[0026] The connecting frame 5 has two fixed blocks 501 fixedly connected to both ends. Each fixed block 501 has a movable limit rod 502 connected to its other end. The bottom end of each limit rod 502 extends to the lower surface of the fixed frame 1 and is threaded with an adjusting nut 503. A spring 504 is fitted onto the outer side of each limit rod 502. Both ends of the spring 504 are fixedly connected to the lower surface of the fixed block 501 and the upper surface of the fixed frame 1, respectively. A filter screen 401 is fixedly connected inside the feeding hopper 4. Vibration motors 402 are fixedly connected to both sides of the feeding hopper 4. The bottom end of the feeding hopper 4 is adapted to the inner wall of the screening box 2. During use… The vibrating motor 402, during operation, drives the feeding bin 4 to vibrate along the upper surface of the fixed frame 1 with the limiting rod 502 as the trajectory. This causes the tea leaves inside the feeding bin 4 to fall into the screening box 2 after being filtered by the filter screen 401. The spring 504, during use, can improve the vibration efficiency of the device, thereby improving the filtration effect. At the same time, the adjusting nut 503, which is threadedly matched with the limiting rod 502, can adjust the elasticity of the spring 504, thereby improving the flexibility of the device.

[0027] Specifically, both ends of the swing arm 3 are fixedly connected to hinge blocks 301. Each hinge block 301 at one end of the swing arm 3 is movably connected to a hinge seat 302. The hinge seats 302 are fixedly installed on the lower surface of the fixed frame 1. Each hinge block 301 at the other end of the swing arm 3 is fixedly connected to a fixing bolt 303 via a bearing. One end of the fixing bolt 303 is fixedly installed on the side of the screening box 2. In use, the swing arm 3, through the hinge seat 302 and the fixing bolt 303, can achieve auxiliary limiting of the screening box 2, thereby improving the effectiveness of the device.

[0028] Specifically, a screen 1 201 is fixedly connected to the middle of the inner wall of the screening box 2, and a screen 202 is fixedly connected to the lower surface of the inner wall of the screening box 2. A first discharge port 203 is fixedly connected to one side of one end of the screening box 2, and the first discharge port 203 is adapted to the upper surface of the screen 1 201. A second discharge port 204 is fixedly connected to the other side of one end of the screening box 2, and the second discharge port 204 is adapted to the upper surface of the screen 202. In use, the tea leaves can be double-filtered by the screen 1 201 and the screen 2 202, which have different mesh sizes, which helps to improve the screening effect of the device. The first discharge port 203 and the second discharge port 204 facilitate the discharge of the device.

[0029] Specifically, a servo motor 101 is fixedly connected to one side of one end of the fixed frame 1. A drive shaft 102 is fixedly connected to the output end of the servo motor 101. One end of the drive shaft 102 is fixedly installed on the other side of the fixed frame 1 via a bearing and a bearing seat. Fixed sleeves 601 are fixedly connected to both ends of the pull rod 6. The fixed sleeves 601 at one end of the pull rod 6 are fixedly installed on the side of the drive shaft 102 via bearings. The fixed sleeves 601 at the other end of the pull rod 6 are fixedly connected to a fixed shaft 602 via bearings. Both ends of the fixed shaft 602 are fixedly installed on the lower surface of the screening box 2 via fixed seats 603. During use, the servo motor 101 drives the drive shaft 102 to rotate. When the drive shaft 102 rotates, it drives the screening box 2 to swing back and forth via the pull rod 6, thereby improving the screening effect of the screening box 2. Moreover, screening by swinging can effectively reduce the breakage of tea leaves, which is beneficial to improving the use effect of the device.

[0030] The working principle of this utility model is as follows: When in use, the tea leaves to be screened are added into the feeding hopper 4, and then the vibration motor 402 is turned on. During use, the motor vibrates the feeding hopper 4 to prevent the tea leaves from sticking together inside the feeding hopper 4. After being filtered by the filter screen 401, the tea leaves fall into the screening box 2. At this time, the servo motor 101 drives the drive shaft 102 to rotate. When the drive shaft 102 rotates, it drives the screening box 2 to swing back and forth through the pull rod 6. Through the provided screen 1 201 and screen 2 202, which have different mesh sizes, the tea leaves can be filtered twice, which is beneficial to improving the screening effect of the device. The first discharge port 203 and the second discharge port 204 facilitate the discharge of the device. The sieving by swinging can effectively reduce the breakage of the tea leaves, which is beneficial to improving the use effect of the device.

[0031] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A chaff screening apparatus for tea production comprising a fixed frame (1), characterised in that: The fixed frame (1) is equipped with a screening box (2) inside. Both ends of the screening box (2) are equipped with swing arms (3). One end of the upper surface of the screening box (2) is equipped with a feeding bin (4). A connecting frame (5) is fixedly connected to the outside of the feeding bin (4). Both sides of the lower surface of the screening box (2) are equipped with pull rods (6). Wherein: both ends of the connecting frame (5) are fixedly connected to the two sides of the fixed blocks (501), and the other end of the fixed blocks (501) is movably connected to the limit rods (502). The bottom end of the limit rods (502) extends to the lower surface of the fixed frame (1) and is threadedly connected to the adjusting nut (503). The outer side of the limit rods (502) is fitted with springs (504), and the two ends of the springs (504) are fixedly connected to the lower surface of the fixed blocks (501) and the upper surface of the fixed frame (1) respectively.

2. The chaff screening apparatus for tea production according to claim 1, characterized in that: A filter screen (401) is fixedly connected inside the feeding hopper (4), and a vibration motor (402) is fixedly connected to both sides of the feeding hopper (4). The bottom of the feeding hopper (4) is adapted to the inner wall of the screening box (2).

3. The chaff screening apparatus for tea production according to claim 1, characterized in that: Both ends of the swing arm (3) are fixedly connected to hinge blocks (301). The hinge blocks (301) at one end of the swing arm (3) are movably connected to hinge seats (302). The hinge seats (302) are fixedly installed on the lower surface of the fixed frame (1). The hinge blocks (301) at the other end of the swing arm (3) are fixedly connected to fixing bolts (303) through bearings. One end of the fixing bolts (303) is fixedly installed on the side of the screening box (2).

4. The chaff screening apparatus for tea production according to claim 1, characterized in that: A screen one (201) is fixedly connected to the middle of the inner wall of the screening box (2), and a screen two (202) is fixedly connected to the lower surface of the inner wall of the screening box (2). A first discharge port one (203) is fixedly connected to one side of one end of the screening box (2), and the first discharge port one (203) is adapted to the upper surface of the screen one (201). A second discharge port (204) is fixedly connected to the other side of one end of the screening box (2), and the second discharge port (204) is adapted to the upper surface of the screen two (202).

5. The chaff screening apparatus for tea production according to claim 1, characterized in that: A servo motor (101) is fixedly connected to one side of one end of the fixed frame (1), and a drive shaft (102) is fixedly connected to the output end of the servo motor (101). One end of the drive shaft (102) is fixedly installed on the other side of the fixed frame (1) through a bearing and a bearing seat.

6. The chaff screening apparatus for tea production according to claim 1, characterized in that: Both ends of the pull rod (6) are fixedly connected to a fixing sleeve (601). The fixing sleeve (601) at one end of the pull rod (6) is fixedly installed on the side of the drive shaft (102) by bearings. The fixing sleeve (601) at the other end of the pull rod (6) is fixedly connected to a fixing shaft (602) by bearings. Both ends of the fixing shaft (602) are fixedly installed on the lower surface of the screening box (2) by fixing seats (603).

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