Tea dust screening device
By using a swinging member and reciprocating mechanism composed of a swing plate and a swing frame in the tea powder screening device, gentle screening of tea leaves is achieved, tea fragmentation caused by vibration screening is solved, and tea powder screening efficiency and tea soup are improved.
Patent Information
- Application Number
- CN202420718053.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-09
AI Technical Summary
The existing tea powder screening device causes the tea leaves to further fragment, resulting in more tea powder, causing economic losses.
A tea powder screening device was designed, using a swinging member composed of a swing plate and a swing frame to drive the screen to swing, gently screen out the tea powder, and pass the meshing structure of arc rack and spur rack, as well as sliders, chains and sprockets. The reciprocating mechanism realizes the swinging of the swinging plate to reduce the breakage of the tea leaves.
It effectively reduces the fragmentation rate of tea during the screening process, improves the screening efficiency of tea powder, prevents screening mesh clogs, and improves the neatness of tea leaves and the clearness of tea soup.
Smart Images
Figure CN222267788U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tea processing, in particular to a tea dust screening device. Background Art
[0002] Tea refers to a dried product made from the tender leaves of tea trees after being picked, withered, rolled, and dried. The dried tea leaves have an extremely low water content, lose their elasticity, and become easily broken. In addition, the nutrients and cellulose in the tea leaves also become fragile due to drying, and are easily broken by external forces. When the tea leaves are stacked and transferred, they will break due to squeezing and friction, resulting in tea powder, which is called tea dust.
[0003] Tea dust is usually rough and has uneven particle size, which will affect the neatness and overall beauty of the tea. At the same time, the broken tea leaves in the tea dust will make the tea soup turbid, affecting the clarity and taste of the tea soup. The broken tea leaves have a large surface area and are more likely to release tea polyphenols, caffeine and other substances when brewing, which may make the tea soup bitter or strong, affecting the aroma and taste of the tea. The tea dust will also be oxidized and damaged to a certain extent during the processing, resulting in the loss of nutrients in the tea. Therefore, it is necessary to use a tea disassembly and selection device to screen out the tea dust, such as a tea dust screening device for tea production with patent publication number: CN219052061U.
[0004] However, most of the existing tea dust screening devices adopt vibration screening, that is, pouring tea leaves onto a sieve plate and vibrating the sieve plate to screen out the tea dust. However, the strong vibration of the tea leaves will increase the squeezing and friction between the tea leaves, which will further cause the tea leaves to break and produce more tea dust, resulting in more tea loss and economic losses. In order to solve the above-mentioned problems, a tea dust screening device is now provided. Utility Model Content
[0005] The utility model aims to provide a tea dust screening device to solve the problem in the above background technology that most of the existing tea dust screening devices adopt vibration screening, which causes the tea leaves to be further broken and produce more tea dust, resulting in more tea loss.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tea dust screening device, comprising a device base and a bracket, a screening mechanism is arranged on the end face of the bracket, the screening mechanism comprises a swinging plate, a swinging frame and a screen, the swinging plate and the swinging frame constitute a swinging member, the swinging member drives the screen to swing, pours the tea leaves onto the screen, and the swinging screen causes the tea leaves to flip on the screen, so that the fine tea dust can be gently screened out.
[0007] As a preferred technical solution of the utility model, the bracket is fixedly connected to the upper end of the base, the swing plate is rotatably installed on the end surface of the bracket, the swing frame is fixedly connected to the lower end of the swing plate, and the screen is fixedly installed at the bottom of the swing frame. The tea leaves are poured onto the screen, and the swing plate is swung back and forth to screen out the tea residue.
[0008] As a preferred technical solution of the utility model, a collecting trough for collecting tea dust is placed on the upper end of the base, and the tea dust falls into the collecting trough by its own gravity for collection.
[0009] As a preferred technical solution of the utility model, an opening for discharging tea leaves is provided on one side of the swing frame, a flap for closing the opening is rotatably installed in the opening, and the tea leaves can be discharged from the opening by rotating and opening the flap.
[0010] As a preferred technical solution of the utility model, a swing mechanism for controlling the swing of the swing plate is arranged inside the bracket, and the swing mechanism includes an arc rack and a spur rack. The rotating end of the swing plate is rotatably inserted into the inside of the bracket, and the rotating end is fixedly connected to a connecting frame, the arc rack is fixedly connected to the lower end of the connecting frame, the spur rack is slidably installed inside the bracket, and the spur rack and the arc rack are meshed with each other. The reciprocating movement of the spur rack drives the arc rack to swing back and forth, thereby driving the swing plate to swing.
[0011] As a preferred technical solution of the utility model, a reciprocating mechanism for controlling the reciprocating movement of a spur rack is provided inside the bracket, the reciprocating mechanism includes a slide bar, a rail bar, a chain and two sprockets, the slide bar is slidably installed in the bracket, and the slide bar is fixedly connected to the end face of the spur rack, the rail bar is fixedly connected to the end face of the slide bar away from the spur rack, the two sprockets are rotatably installed inside the bracket, and the chain is sleeved on the outer side walls of the two sprockets, the side edge of the chain is rotatably connected to a slide bar, and the slide bar is slidably installed in the rail groove of the rail bar, and a motor for driving a sprocket to rotate is fixedly installed inside the bracket, driving the spur rack to reciprocate through the reciprocating mechanism.
[0012] As a preferred technical solution of the utility model, a support rod for stabilizing the swing frame is fixedly connected between the upper end of the swing frame and the end surface of the swing plate, and the swing frame is further supported by the support rod.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model adopts a swinging plate and a swinging frame to form a swinging member, and the swinging member drives the screen to swing, so that tea leaves are poured onto the screen. The swinging screen causes the tea leaves to turn over on the screen, and finely crushed tea leaves can be gently screened out, thereby solving the problem that most existing tea leaves screening devices adopt vibration screening, and vibration causes the tea leaves to be further broken to produce more tea leaves and lose more tea leaves. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of the tea dust screening device according to an embodiment of the utility model;
[0016] Figure 2 It is a schematic diagram of the installation structure of the swing mechanism and the reciprocating mechanism of the embodiment of the utility model;
[0017] Figure 3 It is an exploded view of the swing mechanism and the reciprocating mechanism of the embodiment of the utility model.
[0018] In the figure: 1. base; 2. bracket; 3. screening mechanism; 31. swing plate; 311. connecting frame; 32. swing frame; 321. flip cover; 322. support rod; 33. screen; 4. swing mechanism; 41. arc rack; 42. straight rack; 5. reciprocating mechanism; 51. slide bar; 52. rail; 53. chain; 54. sprocket; 541. slider; 6. collecting trough. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Example
[0021] See also Figure 1-3 This embodiment provides a tea dust screening device, including a base 1 and a bracket 2 of the screening device.
[0022] Specifically, the bracket 2 is fixedly connected to the upper end of the base 1 , and the base 1 increases the contact surface between the lower end of the bracket 2 and the ground, thereby stabilizing the bracket 2 .
[0023] like Figure 1 As shown, the end surface of the bracket 2 is provided with a screening mechanism 3, specifically, the screening mechanism 3 comprises a swing plate 31, a swing frame 32 and a screen 33, wherein the upper end of the swing plate 31 is rotatably mounted on the end surface of the bracket 2, the swing frame 32 is fixedly connected to the lower end of the swing plate 31, and the screen 33 is fixedly connected to the lower end of the swing frame 32. When in use, the tea leaves are poured into the swing frame 32, so that the tea leaves fall on the screen 33, and the swing plate 31 is reciprocated to swing the swing frame 32, and the swing frame 32 can swing 45 degrees to the left and right, that is, the swing frame 32 can swing 90 degrees as a whole, even if the tea leaves roll and turn on the screen 33, and then the fine and small tea residues are screened out from the screen 33.
[0024] Compared with the up-and-down vibrating screen plate to screen out the tea dust, the swinging screen 33 makes the tea leaves turn over more gently, reducing the rate of tea leaves breaking when screening the tea dust. The up-and-down vibrating screen plate can prevent the tea dust from clogging the screen holes of the screen plate. Similarly, when the swinging screen 33 stops at the highest point, the screen 33 will vibrate due to inertia, thereby shaking out the tea dust blocked in the screen holes of the screen 33, preventing the screen holes of the screen 33 from being blocked.
[0025] In order to receive the sifted tea dust, a collecting trough 6 is placed at the upper end of the base 1, and the collecting trough 6 is aligned with the screen 33 up and down, so that the tea dust sifted from the screen 33 can fall into the collecting trough 6 by its own gravity for collection.
[0026] like Figure 2 As shown, the swing plate 31 is fixedly connected to one side of the upper end of the swing frame 32, so that the force is offset when the swing frame 32 swings, and the stability is poor. In order to increase the stability of the swing frame 32, a support rod 322 is fixedly connected between the swing frame 32 and the swing plate 31. Specifically, one end of the support rod 322 is fixedly connected to a side of the upper end of the swing frame 32 away from the swing plate 31, and the other end of the support rod 322 is fixedly connected above the end surface of the swing plate 31. The support rod 322 supports the swing frame 32, so that the force position of the swing plate 31 on the swing frame 32 is close to the center of the swing frame 32, thereby further stabilizing the swing frame 32.
[0027] After the screening of the tea powder is completed, in order to facilitate the removal of the tea leaves on the screen 33, as shown in FIG. Figure 1 As shown, an opening is provided on the side of the swing frame 32, and a flip cover 321 is rotatably installed in the opening. When screening the tea dust, the flip cover 321 is rotated to close the opening of the swing frame 32. After the tea dust is screened, the flip cover 321 is rotated in the opposite direction to open the opening of the swing frame 32, and the tea leaves on the screen 33 are gently brushed with a brush to discharge the tea leaves from the opening for collection.
[0028] In order to facilitate the swinging of the swing plate 31 , a swing mechanism 4 and a reciprocating mechanism 5 are provided inside the bracket 2 .
[0029] Specifically, the swing mechanism 4 includes an arc rack 41 and a straight rack 42. A rotating end is provided at the rotating connection between the swing plate 31 and the bracket 2, that is, the rotating end of the swing plate 31 is rotatably plugged into the end surface of the bracket 2. The outer wall of the rotating end of the swing plate 31 is fixedly connected with a connecting frame 311. The connecting frame 311 is aligned with the swing plate 31, and the connecting frame 311 and the swing plate 31 are distributed in a state of being parallel to each other. The arc rack 41 is fixedly connected to the lower end of the connecting frame 311. The arc rack 41 is an arc structure, and the arc center of the arc rack 41 is aligned with the rotating connection between the swing plate 31 and the bracket 2. The straight rack 42 is horizontally slidably installed inside the bracket 2, and the straight rack 42 and the arc rack 41 are meshed with each other. The horizontal sliding of the straight rack 42 can drive the arc rack 41 to rotate, thereby driving the swing plate 31 to rotate. The reciprocating sliding of the straight rack 42 left and right can drive the arc rack 41 and the swing plate 31 to swing left and right.
[0030] like Figure 3 As shown, the reciprocating mechanism 5 includes a slide bar 51, a rail bar 52, a chain 53 and a sprocket 54, wherein two sprockets 54 are provided, and both sprockets 54 are rotatably mounted inside the bracket 2, and the two sprockets 54 are symmetrically arranged on the same horizontal plane, and the chain 53 is sleeved on the outer side walls of the two sprockets 54, so that the chain 53 is meshed with the two sprockets 54. The slide bar 51 and the rail bar 52 are fixedly connected, and the slide bar 51 and the rail bar 52 are vertically distributed in a cross, the slide bar 51 is horizontally slidably mounted inside the bracket 2, and the side of the slide bar 51 away from the rail bar 52 is fixedly connected to the end face of the spur rack 42. The rail bar 52 is provided with a rail groove, and the rail groove is vertically distributed with the slide bar 51. The side of the chain 53 is rotatably connected with a slider 541, and the slider 541 is slidably mounted in the rail groove of the rail bar 52.
[0031] A motor is fixedly installed inside the bracket 2, and the output shaft of the motor is fixedly connected to a sprocket 54. When the swing plate 31 needs to swing, the motor is started to drive the sprocket 54 to rotate, and cooperates with another sprocket 54 to drive the chain 53 to rotate. The rotation of the chain 53 drives the slider 541 to rotate. When the slider 541 moves to different horizontal planes, even if the slider 541 slides up and down in the track groove of the rail 52, at the same time, the slider 541 slides while driving the rail 52 to slide left and right inside the bracket 2. The movement of the rail 52 drives the slider 51 to move horizontally inside the bracket 2, and then drives the spur rack 42 to move back and forth left and right inside the bracket 2. The reciprocating movement of the spur rack 42 can drive the arc rack 41 and the swing plate 31 to swing.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tea dust screening device, comprising a device base (1) and a bracket (2), characterized in that: The end surface of the support (2) is provided with a screening mechanism (3), and the screening mechanism (3) comprises a swinging plate (31), a swinging frame (32) and a screen (33). The swinging plate (31) and the swinging frame (32) form a swinging member, and the swinging member drives the screen (33) to swing, so that tea leaves are poured onto the screen (33). The swinging screen (33) causes the tea leaves to flip on the screen (33), so that fine tea residues can be gently screened out.
2. The tea dust screening device according to claim 1, characterized in that: The bracket (2) is fixedly connected to the upper end of the base (1), the swing plate (31) is rotatably mounted on the end surface of the bracket (2), the swing frame (32) is fixedly connected to the lower end of the swing plate (31), and the screen (33) is fixedly mounted on the bottom of the swing frame (32).
3. The tea dust screening device according to claim 2, characterized in that: A collecting trough (6) for collecting tea residue is placed at the upper end of the base (1).
4. The tea dust screening device according to claim 2, characterized in that: An opening for discharging tea leaves is provided on one side of the swing frame (32), and a flip cover (321) for closing the opening is rotatably installed in the opening.
5. The tea dust screening device according to claim 2, characterized in that: A swing mechanism (4) for controlling the swing of the swing plate (31) is arranged inside the bracket (2), and the swing mechanism (4) comprises an arc rack (41) and a spur rack (42). The rotating end of the swing plate (31) is rotatably inserted into the inside of the bracket (2), and the rotating end is fixedly connected to a connecting frame (311). The arc rack (41) is fixedly connected to the lower end of the connecting frame (311), and the spur rack (42) is slidably installed inside the bracket (2), and the spur rack (42) and the arc rack (41) are meshed with each other.
6. The tea dust screening device according to claim 3, characterized in that: A reciprocating mechanism (5) for controlling the reciprocating movement of the spur rack (42) is arranged inside the bracket (2), and the reciprocating mechanism (5) comprises a slide bar (51), a rail bar (52), a chain (53) and two sprocket wheels (54). The slide bar (51) is slidably mounted inside the bracket (2), and the slide bar (51) is fixedly connected to the end face of the spur rack (42), and the rail bar (52) is fixedly connected to the end face of the slide bar (51) away from the spur rack (42), the two sprocket wheels (54) are both rotatably mounted inside the bracket (2), and the chain (53) is sleeved on the outer side walls of the two sprocket wheels (54), the side edge of the chain (53) is rotatably connected to a slide bar (541), and the slide bar (541) is slidably mounted in the track groove of the rail bar (52), and a motor for driving a sprocket wheel (54) to rotate is fixedly mounted inside the bracket (2).
7. The tea dust screening device according to claim 2, characterized in that: A support rod (322) for stabilizing the swing frame (32) is fixedly connected between the upper end of the swing frame (32) and the end surface of the swing plate (31).