Tea screening equipment
By using a folded tube and inclined frame structure in the tea sieving equipment to control the tea leaves to fall evenly into the upper sieve frame, and by using a drive motor and vibrator to achieve continuous vibration sieving of the tea leaves, the problems of screen clogging and uneven grading in traditional tea sieving equipment are solved, thereby improving the tea sieving effect and the quality of the finished tea.
Patent Information
- Application Number
- CN202522637289.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-12-12
AI Technical Summary
Traditional tea sieving equipment is prone to clogging of the screen pores during the sieving process after tea rolling, resulting in low accuracy in tea grading and uneven distribution of tea leaves, which affects the appearance and taste of the finished tea.
A tea sieving device was designed, which adopts a folded tube and inclined frame structure to control the tea leaves to fall evenly into the upper sieve frame. The upper and lower sieve frames are vibrated by a drive motor and vibrator in conjunction with a sliding plate and spring structure to ensure that the tea leaves are evenly dispersed and continuously sieved.
This effectively avoids screen clogging, improves the accuracy and efficiency of tea sieving, and ensures the uniformity of tea leaves and the quality of the finished tea.
Smart Images
Figure CN223800977U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of tea processing, and specifically relates to a tea screening equipment. BACKGROUND
[0002] Tea rolling is one of the core processes of tea primary processing, and the tea after rolling treatment will form a specific strip shape, and at the same time, the cell wall is broken to release the internal substances, thereby laying a foundation for subsequent fermentation, drying and product flavor, but the tea after rolling has obvious specification difference, including complete strips meeting product requirements, and also producing broken tea, tea dust and unformed loose leaf groups, and if accurate screening and grading is not carried out, the product tea will be mixed in size and appearance, which not only affects the commodity value of the tea, but also reduces the brewing taste due to excessive broken tea, so that screening and processing of the tea after rolling is a necessary process to guarantee product quality.
[0003] Under the traditional processing mode, the operator usually directly pours the tea after rolling into a single layer or multiple layers of screen for screening, and a large amount of tea is instantaneously accumulated on the surface of the screen, which easily causes the screen aperture to be blocked, and one-time feeding will cause the tea to be unevenly distributed on the surface of the screen, and the tea layer in the local area is too thick, so that the screening force cannot be effectively transmitted to the bottom layer of tea, and then the strip tea is mixed with broken tea, and the leaf groups are mixed into the product without being broken, which seriously reduces the accuracy of tea grading. UTILIZY MODEL CONTENT
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a tea screening equipment, which effectively solves the problem of poor screening effect of the tea after rolling.
[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a tea screening equipment, comprising a box body, a feeding mechanism is arranged on the box body, a screening mechanism is arranged in the box body, and a residue discharge hopper is fixedly connected to the bottom of the box body;
[0006] The feeding mechanism comprises an inner recessed cylinder in the box body, two supporting blocks are fixedly connected between the outer side of the inner recessed cylinder and the box body, a plurality of flow dividing plates are fixedly connected at equal angles on the inner recessed surface of the inner recessed cylinder, a feed hopper is arranged above the box body, a bent pipe is fixedly connected to the bottom end of the feed hopper, an inclined frame is arranged at the bottom end of the bent pipe, two connecting blocks are fixedly connected between the inclined frame and the bent pipe, the inclined frame is located in the inner recessed cylinder, and a valve is installed on the bent pipe.
[0007] Preferably, a support is fixedly installed on the top of the box body, a driving motor is fixedly installed on the support, a driving shaft is fixedly connected to the driving motor, a bracket is fixedly connected to the bottom end of the driving shaft, and the bracket is fixed to the outer side of the feed hopper.
[0008] Preferably, the top of the box is provided with a through hole, the inner diameter of the through hole is greater than the outer diameter of the folding pipe, and the folding pipe penetrates through the through hole.
[0009] Preferably, the screening mechanism comprises two U-shaped frames located in the box, both of which are located below the inner concave cylinder, and the inner side of both of the U-shaped frames is provided with a mounting frame, and two buckles are symmetrically arranged between the U-shaped frame and the mounting frame, and the bottom of both of the mounting frames is fixedly connected with a lower sieve frame and an upper sieve frame, respectively, the lower sieve frame is located below the upper sieve frame, and the inner diameter of the sieve hole of the lower sieve frame is smaller than that of the upper sieve frame.
[0010] Preferably, the inner side of the U-shaped frame is provided with a positioning groove, and the outer side of the mounting frame is fixedly connected with a positioning block which is inserted into the positioning groove.
[0011] Preferably, the bottom of the inner concave cylinder and the box are symmetrically fixedly connected with two L-shaped round rods, the outer side of both of the L-shaped round rods is movably sleeved with a sliding plate, the bottom of both of the sliding plates is fixedly installed with a vibrator, both of the U-shaped frames are fixed between the two sliding plates, and both of the sliding plates and the inner concave cylinder are fixedly connected with springs, and both of the springs are sleeved on the outer side of the two L-shaped round rods.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] 1. By setting the folding pipe, the inclined frame and the inner concave cylinder, the tea in the feeding hopper can fall slowly into the upper sieve frame, and by starting the driving motor, the inclined frame can rotate, and under the cooperation of the inner concave cylinder and the flow divider, the tea can uniformly fall into the upper sieve frame, so that the tea can be prevented from accumulating in large quantities, thereby improving the screening effect of the tea.
[0014] 2. By setting the upper sieve frame and the lower sieve frame, the tea can be double-screened, and by starting the vibrator, the sliding plate can reciprocate along the L-shaped round rod under the action of the spring force, so that the upper sieve frame and the lower sieve frame can continuously vibrate, thereby facilitating the full screening of the tea, and preventing the upper sieve frame and the lower sieve frame from being blocked. BRIEF DESCRIPTION OF DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation on the utility model.
[0016] In the drawings:
[0017] Figure 1 It is a structure schematic view of the tea screening equipment of the utility model;
[0018] Figure 2 It is a structure schematic view of the feeding mechanism of the utility model;
[0019] Figure 3 The figure is a structural schematic diagram of the screening mechanism of the utility model.
[0020] Figure 4 The figure is a structural schematic diagram of the U-shaped frame and the mounting frame of the utility model.
[0021] In the figure: 1, box body; 2, feeding mechanism; 201, inner concave cylinder; 202, connecting block; 203, inclined frame; 204, folding pipe; 205, support; 206, support; 207, driving motor; 208, driving shaft; 209, feeding hopper; 2010, valve; 2011, flow divider; 2012, support block; 3, screening mechanism; 301, U-shaped frame; 302, buckle; 303, sliding plate; 304, vibrator; 305, L-shaped round rod; 306, mounting frame; 307, lower sieve frame; 308, upper sieve frame; 309, spring; 3010, positioning groove; 3011, positioning block; 4, slag discharge hopper. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0023] Embodiment one, by Figure 1 The utility model relates to a kind of tea screening equipment, including box body 1, feeding mechanism 2 is equipped on box body 1, the inside of box body 1 is equipped with screening mechanism 3, the bottom of box body 1 is fixedly connected with slag discharge hopper 4, and waste residue screened from tea can be discharged from slag discharge hopper 4.
[0024] Specifically, by Figure 2Given, the feeding mechanism 2 includes a concave cylinder 201 located in the box 1, the outer side of the concave cylinder 201 is fixedly connected with two support blocks 2012 symmetrically between the box 1, the concave surface of the concave cylinder 201 is fixedly connected with a plurality of flow dividing plates 2011 at equal angles, the upper side of the box 1 is provided with a feeding hopper 209, the bottom end of the feeding hopper 209 is fixedly connected with a bent pipe 204, the bottom end of the bent pipe 204 is provided with an inclined frame 203, the inclined frame 203 and the bent pipe 204 are fixedly connected with two connecting blocks 202 symmetrically, and the inclined frame 203 is located in the concave cylinder 201, the inclined frame 203 is inclined downward and towards the concave surface of the concave cylinder 201, and at the same time, the tea leaves in the inclined frame 203 fall on the concave surface of the concave cylinder 201 under the action of centrifugal force during rotation, the bent pipe 204 is provided with a valve 2010, the top of the box 1 is fixedly provided with a support 206, the support 206 is fixedly provided with a driving motor 207, the driving motor 207 is fixedly connected with a driving shaft 208, the bottom end of the driving shaft 208 is fixedly connected with a bracket 205, the bracket 205 is fixed to the outer side of the feeding hopper 209, the top of the box 1 is provided with a through hole, the inner diameter of the through hole is greater than the outer diameter of the bent pipe 204, and the bent pipe 204 penetrates through the through hole, the screening mechanism 3 includes two U-shaped frames 301 located in the box 1, the two U-shaped frames 301 are located below the concave cylinder 201, the inner side of each of the two U-shaped frames 301 is provided with a mounting frame 306, two buckles 302 are symmetrically arranged between the U-shaped frame 301 and the mounting frame 306, the bottom of each of the two mounting frames 306 is fixedly connected with a lower sieve frame 307 and an upper sieve frame 308, respectively, the lower sieve frame 307 is located below the upper sieve frame 308, and the inner diameter of the sieve hole of the lower sieve frame 307 is smaller than that of the upper sieve frame 308, the bent pipe 204 adopts a gradually changing pipe diameter design, the upper end pipe diameter connected with the feeding hopper 209 is φ80mm, which is used to match the outlet size of the bottom end of the feeding hopper 209 to avoid the connection place from being blocked due to the reduction of the diameter, the downward bending section is φ60mm, which is used to adapt to the inlet size of the inclined frame 203, this pipe diameter can ensure the passing rate of tea leaves and avoid uneven falling of tea leaves due to too large pipe diameter or blockage caused by too small pipe diameter, the bent pipe 204 and the bottom end of the feeding hopper 209 are connected at an angle of 15°, this angle can make the tea leaves enter the bent pipe 204 from the feeding hopper 209, slide in the same direction by the help of its own gravity and the centrifugal force generated by the rotation of the feeding hopper 209, and avoid "material accumulation" when the connection is at a right angle or a negative angle, at the same time, the connection part adopts a circular arc transition to eliminate the risk of blockage caused by edges and corners, the bent pipe 204 adopts a single 90° bending design, only one bending is provided, the 15° upward angle section at the upper end is bent downward by 90°, and then connected with the inclined frame 203, this bending method can shorten the falling path of tea leaves and avoid the resistance caused by multiple bendings, the 90° bending angle and the smooth inner wall of the food-grade PP material can ensure the smooth passing of the strip-shaped tea leaves, and avoid the problems of jamming and uneven falling caused by too small bending angle or too large bending angle;
[0025] The mounting frame 306 and the U-shaped frame 301 can be fixed by the buckle 302, which facilitates the installation of the upper sieve frame 308 and the lower sieve frame 307. When the buckle 302 is released, the fixing of the mounting frame 306 and the U-shaped frame 301 can be released, and the upper sieve frame 308 and the lower sieve frame 307 can be disassembled, which facilitates the processing of tea leaves in the upper sieve frame 308 and the lower sieve frame 307.
[0026] Specifically, by Figures 3-4 As shown, the U-shaped frame 301 has a positioning groove 3010 on its inner side, and a positioning block 3011 is fixedly connected to the outer side of the mounting frame 306. The positioning block 3011 is inserted into the positioning groove 3010. Two L-shaped round rods 305 are symmetrically fixedly connected between the bottom of the concave cylinder 201 and the box body 1. Slide plates 303 are movably sleeved on the outer side of each of the two L-shaped round rods 305. Vibrators 304 are fixedly installed on the bottom of each of the two slide plates 303. The two U-shaped frames 301 are fixed between the two slide plates 303. Springs 309 are fixedly connected between each of the two slide plates 303 and the concave cylinder 201. The two springs 309 are respectively sleeved on the outer side of the two L-shaped round rods 305. Guide grooves are opened on both sides of the interior of the U-shaped frame 301. Two guide blocks are symmetrically fixedly connected to the outer side of the mounting frame 306. The two guide blocks slide into the two guide grooves respectively, which can prevent the mounting frame 306 from falling off during the up and down shaking process.
[0027] When the vibrator 304 is started, the two slide plates 303 slide back and forth along the two L-shaped round rods 305 respectively, thereby driving the two U-shaped frames 301 to move up and down, realizing the continuous vibration of the upper sieve frame 308 and the lower sieve frame 307 to avoid clogging, and at the same time improving the sieving efficiency of tea leaves.
[0028] Working principle: First, the kneaded tea leaves are poured into the feed hopper 209. Then, the valve 2010 is opened. At this time, the tea leaves slowly fall into the upper screen frame 308 through the folding tube 204, the inclined frame 203, and the concave cylinder 201. At the same time, the drive motor 207 is started, which drives the support 205 to rotate through the drive shaft 208 and drives the feed hopper 209 to rotate, realizing the rotation of the inclined frame 203. Under the diversion effect of each diversion plate 2011, the tea leaves fall evenly into the upper screen frame 308, avoiding the accumulation of a large amount of tea leaves at one time.
[0029] After being sieved, the tea leaves in the upper sieve frame 308 fall into the lower sieve frame 307 for secondary sieving. At the same time, two vibrators 304 are activated, causing two sliding plates 303 to slide back and forth along two L-shaped round rods 305 under the elastic force of two springs 309. This achieves vibration of the upper sieve frame 308 and the lower sieve frame 307, preventing blockage of the upper sieve frame 308 and the lower sieve frame 307, and ultimately improving the sieving effect of the tea leaves.
Claims
1. A tea leaf sieving apparatus comprising a housing (1) characterised in that: The box (1) is provided with a feeding mechanism (2), the inside of the box (1) is provided with a screening mechanism (3), and the bottom of the box (1) is fixedly connected with a slag discharge hopper (4); The feeding mechanism (2) comprises an inner recessed cylinder (201) located in the box (1), two support blocks (2012) are fixedly and symmetrically connected between the outer side of the inner recessed cylinder (201) and the box (1), a plurality of flow dividing plates (2011) are fixedly and equiangularly connected to the inner recessed surface of the inner recessed cylinder (201), the upper portion of the box (1) is provided with a feeding hopper (209), the bottom end of the feeding hopper (209) is fixedly connected with a bent pipe (204), the bottom end of the bent pipe (204) is provided with an inclined frame (203), two connecting blocks (202) are fixedly and symmetrically connected between the inclined frame (203) and the bent pipe (204), the inclined frame (203) is located in the inner recessed cylinder (201), a valve (2010) is installed on the bent pipe (204), the top of the box (1) is fixedly installed with a support (206), the support (206) is fixedly installed with a driving motor (207), the driving motor (207) is fixedly connected with a driving shaft (208), the bottom end of the driving shaft (208) is fixedly connected with a bracket (205), the bracket (205) is fixed to the outer side of the feeding hopper (209), the top of the box (1) is provided with a through hole, the inner diameter value of the through hole is greater than the outer diameter value of the bent pipe (204), and the bent pipe (204) penetrates through the through hole.
2. A tea leaf sieving apparatus as claimed in claim 1, wherein: The screening mechanism (3) comprises two U-shaped frames (301) located in the box (1), the two U-shaped frames (301) are located below the inner recessed cylinder (201), the inner side of each of the two U-shaped frames (301) is provided with a mounting frame (306), two buckles (302) are symmetrically arranged between the U-shaped frame (301) and the mounting frame (306), the bottom of each of the two mounting frames (306) is fixedly connected with a lower sieve frame (307) and an upper sieve frame (308), the lower sieve frame (307) is located below the upper sieve frame (308), and the sieve hole inner diameter value of the lower sieve frame (307) is smaller than the sieve hole inner diameter value of the upper sieve frame (308).
3. A tea leaf sieving apparatus as claimed in claim 2, wherein: The inner side of the U-shaped frame (301) is provided with a positioning groove (3010), and the outer side of the mounting frame (306) is fixedly connected with a positioning block (3011), the positioning block (3011) is inserted into the positioning groove (3010).
4. A tea screening apparatus as claimed in claim 1, wherein: The bottom of the inner recessed cylinder (201) and the box (1) are fixedly and symmetrically connected with two L-shaped round rods (305), the outer side of each of the two L-shaped round rods (305) is movably sleeved with a sliding plate (303), the bottom of each of the two sliding plates (303) is fixedly installed with a vibrator (304), the two U-shaped frames (301) are fixed between the two sliding plates (303), springs (309) are fixedly connected between the two sliding plates (303) and the inner recessed cylinder (201), and the two springs (309) are respectively sleeved on the outer sides of the two L-shaped round rods (305).