A device for removing flower fragments in scented tea processing

Abstract

The application relates to the field of scented tea production and processing, in particular to a flower removing device for scented tea processing. The flower removing device for scented tea processing comprises a rack, a sieve box mounted on the rack and a vibration exciter for driving the sieve box to vibrate, and further comprises a rotary steel structure frame arranged at the upper end of the sieve box and close to the material feeding end, a first positioning plate fixed to the sieve box, and a connecting arm rotatably connected to the first positioning plate; a material uniformizing structure detachably mounted at the free end of the connecting arm, a first baffle, a second baffle and a rubber sheet arranged on the second baffle, and the second baffle can be moved and adjusted along the vertical direction relative to the first baffle. In the flower removing device for scented tea processing, the tips of the V-shaped first baffle and the second baffle face the material feeding end, the materials concentrated in the middle region of the sieve screen can be guided and distributed to the two sides, and the utilization rate of the sieve screen is improved.

Description

Technical Field

[0001] This invention relates to the field of flower tea production and processing, and in particular to a device for removing broken flowers during flower tea processing. Background Technology

[0002] During the processing of scented tea, fresh flowers such as jasmine, chrysanthemum, and rose produce small impurities such as broken petals, stems, and stamen fragments during harvesting, transportation, and scenting. These impurities need to be removed by sieving to ensure the appearance and brewing taste of the finished tea. A linear vibrating screen is one of the most widely used screening devices. It uses a vibrator to drive the screen box to vibrate, causing the material to jump forward on the screen surface. Smaller flowers than the screen openings pass through the screen and fall, while intact flowers are discharged from the outlet.

[0003] During the screening process, materials are typically fed directly from the feed end of the screen box. Due to the concentrated feeding point, materials tend to accumulate in the middle area of ​​the screen. Specifically, when a large amount of material falls concentrated in the middle of the screen, it forms a mountain-like accumulation on the screen surface, thicker in the middle and thinner on the sides. The loose particles at the top of the accumulation layer are supported by the intact particles below, preventing them from contacting the screen; the material in the middle of the accumulation layer is compacted by the pressure of the material above, making it even harder for the loose particles to pass through the screen; only the bottom part of the accumulation layer near the screen can be effectively screened. This results in the effective working area of ​​the screen being only a narrow central area, with the screens on both sides essentially unloaded. Furthermore, because the material is not evenly distributed, the separation paths of loose particles and intact particles overlap, causing a large number of loose particles to move forward with the intact particles to the discharge port, resulting in a high residual rate of loose particles in the finished product. This necessitates subsequent manual sorting, increasing labor costs. Therefore, it is necessary to provide a new device for removing broken flowers in flower tea processing to solve the above-mentioned technical problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a device for removing broken flowers in flower tea processing.

[0005] The flower petal removal device for flower tea processing provided by the present invention includes a frame, a sieve box mounted on the frame, and a vibrator for driving the sieve box to vibrate, and further includes: A rotating steel structure frame is located at the upper end of the screen box and near the feeding end, including a first positioning plate fixed on the screen box, and a connecting arm is rotatably connected to the first positioning plate. The material distribution structure is detachably installed at the free end of the connecting arm and includes a first baffle, a second baffle, and a rubber sheet disposed on the second baffle. The second baffle can be moved and adjusted vertically relative to the first baffle.

[0006] Preferably, the first positioning plate is fan-shaped and has a first locking hole, and the connecting arm has a second locking hole. The second locking hole can correspond to any of the first locking holes and is fitted with a locking pin. The locking pin is also magnetically attracted to the connecting arm.

[0007] Preferably, the free end of the connecting arm is provided with a second positioning plate, the second positioning plate is integrally connected to the connecting plate, and the connecting plate is bolted to the connecting arm; A positioning rod is also vertically fixed on the second positioning plate.

[0008] Preferably, both ends of the first baffle are integrally connected with sleeves, which are sleeved on the positioning rod and fixed by nuts.

[0009] Preferably, both the first baffle and the second baffle are V-shaped, with their tips pointing towards the feeding end of the screen box.

[0010] Preferably, a thin sheet is integrally connected to the side of the rubber sheet facing the feeding end of the screen box, and the thickness of the thin sheet is less than the thickness of the rubber sheet.

[0011] Preferably, a sliding guide structure is provided between the first baffle and the second baffle; The sliding guide structure includes a first mounting base fixed to the second baffle and a second mounting base fixed to the first baffle; The first mounting base is integrally connected with a linear slide rail, and the second mounting base is provided with a linear slide groove, wherein the linear slide rail slides inside the linear slide groove.

[0012] Preferably, the cross-section of the linear guide rail and the linear groove is T-shaped or wedge-shaped.

[0013] Preferably, a lifting adjustment component is provided between the first baffle and the second baffle; The lifting adjustment component includes a third positioning plate fixed to the first baffle, a transmission seat fixed to the second baffle, and a threaded rod rotatably connected to the third positioning plate and threadedly connected to the transmission seat. A knob is fixed to the end of the threaded rod.

[0014] Compared with related technologies, the flower petal removal device for flower tea processing provided by the present invention has the following beneficial effects: 1. A rotating steel structure frame is used, including a first positioning plate fixed to the screen box and a connecting arm rotatably connected to the first positioning plate. The material distribution structure is detachably installed at the free end of the connecting arm. The connecting arm can rotate around a pivot and is locked in a horizontal or vertical position by a locking pin. During normal use, the connecting arm is in a horizontal position, and the material distribution structure extends into the screen box for material distribution. When the screen needs to be inspected or cleaned, the connecting arm is rotated to a vertical position, and the entire material distribution structure is completely removed from above the screen box, freeing up operating space and making it flexible and convenient to use.

[0015] 2. The material distribution structure includes a V-shaped first baffle and a second baffle, with their tips facing the feeding end. This structure guides and diverts material concentrated in the middle area of ​​the screen to both sides, improving screen utilization. The second baffle can be adjusted vertically relative to the first baffle. Operators can adjust the gap between the lower edge of the second baffle and the screen according to the material flow rate. The gap is increased when the flow rate is high and decreased when the flow rate is low, achieving adaptive adjustment of the material throughput and ensuring stable diversion effect.

[0016] 3. A rubber sheet, made of flexible material, is installed on the second baffle to cushion the impact with the flower, preventing damage and ensuring the flower's integrity. A thin sheet, thinner than the rubber sheet and extending outwards in a cantilever shape, is integrally connected to the side of the rubber sheet facing the feeding end of the screen box. The material first contacts the thin sheet, which undergoes significant bending deformation, gradually attenuating the material's kinetic energy before it comes into contact with the rubber sheet, forming a two-stage buffer protection that further reduces the risk of petals falling off. The thin sheet has a smooth, burr-free surface with rounded edges and gaps between it to allow small, fragmented flowers to pass through without affecting screening efficiency. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the flower petal removal device for flower tea processing provided by the present invention; Figure 2 As shown in this invention Figure 1 A partial structural diagram; Figure 3 This is a schematic diagram of the rotating steel frame shown in the present invention; Figure 4 This is a schematic diagram of the structure in which the positioning rod and the first baffle are connected in cooperation, as shown in this invention. Figure 5 This is a schematic diagram of the uniform material structure shown in this invention; Figure 6 This is a schematic diagram of the structure of the rubber sheet shown in this invention; Figure 7 This is a schematic diagram of the sliding guide structure shown in the present invention; Figure 8 This is a schematic diagram of the lifting adjustment component shown in the present invention.

[0018] The following are the labels in the diagram: 1. Frame; 2. Screen box; 3. First positioning plate; 4. Connecting arm; 5. First locking hole; 6. Second locking hole; 7. Locking pin; 8. Second positioning plate; 9. Connecting plate; 10. Positioning rod; 11. First baffle; 12. Sleeve; 13. Nut; 14. Rubber sheet; 15. Thin sheet; 16. First mounting base; 17. Linear slide rail; 18. Second mounting base; 19. Linear slide groove; 20. Third positioning plate; 21. Transmission base; 22. Threaded rod; 23. Knob; 24. Second baffle. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0021] Please see Figures 1 to 8 This invention provides a flower tea processing device for removing broken flowers, comprising a frame 1. A screen box 2, supported by springs, is mounted above the frame 1. Multiple layers of screen mesh are fixed inside the screen box 2, and corresponding discharge outlets are provided for separating whole flowers from broken flowers. A vibrator is also mounted on the frame 1. When the vibrator operates, it drives the entire screen box 2 to vibrate at high frequency, causing the material to jump forward on the screen surface. Broken flowers pass through the screen mesh and fall, while whole flowers are discharged from the discharge outlets.

[0022] At the upper end of the screen box 2, near the feeding end, two sets of symmetrically arranged rotating steel structure frames are installed. Each set of rotating steel structure frames includes a first positioning plate 3, which is fan-shaped and fixedly installed on the side wall of the screen box 2. A connecting arm 4 is rotatably connected to the first positioning plate 3, allowing the connecting arm 4 to swing around a certain angle within a certain range. Two first locking holes 5 are provided on the first positioning plate 3, distributed along the circumferential direction, corresponding to the horizontal and vertical states of the connecting arm 4, respectively. A second locking hole 6 is provided on the connecting arm 4. By rotating the connecting arm 4, the second locking hole 6 can be aligned with either of the first locking holes 5, thereby placing the connecting arm 4 in a horizontal state (i.e., parallel to the upper end face of the screen box 2) or a vertical state (i.e., perpendicular to the upper end face of the screen box 2). At the same time, a locking pin 7 is also provided, which can pass through the first locking hole 5 and the second locking hole 6 and magnetically engage with the connecting arm 4, thereby locking the connecting arm 4 in the current position.

[0023] A second positioning plate 8 is also provided at the free end of the connecting arm 4. When the connecting arm 4 is in a horizontal state, the second positioning plate 8 fits against the upper surface of the screen box 2, stabilizing the entire structure. A connecting plate 9 is integrally connected to the second positioning plate 8, and the connecting plate 9 is fixedly connected to the connecting arm 4 by bolts. A positioning rod 10 is also vertically fixed on the second positioning plate 8 for installing the material distribution structure. Therefore, when the connecting arm 4 rotates, it can drive the second positioning plate 8 and the positioning rod 10 to rotate synchronously.

[0024] A material distribution structure is detachably connected to the positioning rod 10 to evenly spread the flowers piled in the middle area of ​​the screen, ensuring that all positions on the screen are fully utilized, thereby improving the efficiency and quality of flower screening. This material distribution structure includes a first baffle 11 and two second baffles 24 arranged vertically on one side of the first baffle 11. The first baffle 11 and the two second baffles 24 are connected by a sliding guide structure, allowing the two second baffles 24 to move vertically relative to the first baffle 11. A channel for material to pass through is formed between the second baffles 24 and the screen. The size of this channel can be adjusted by the vertical movement of the second baffles 24. That is, when the total amount of material is large, the channel area can be increased to improve throughput; when the total amount of material is small, the channel area can be reduced to ensure diversion effect. Both the first baffle 11 and the second baffle 24 are V-shaped, with their tips pointing towards the feeding end of the screen box 2, thereby guiding the material concentrated in the middle area of ​​the screen to both sides to improve the utilization rate of the screen.

[0025] Sleeves 12 are welded and fixed to both ends of the first baffle 11. These sleeves 12 are fitted onto the positioning rod 10 and secured with nuts 13. Therefore, the entire material distribution structure can be quickly disassembled, facilitating subsequent inspection and maintenance. Multiple rubber sheets 14 are fixed between the two second baffles 24, forming a complete material distribution structure. The rubber sheets 14 are made of flexible material and will not damage the flowers upon collision, thus ensuring the integrity of the flowers.

[0026] To further enhance the buffering effect, multiple thin sheets 15 are integrally connected to the side of the rubber sheet 14 facing the feeding end of the screen box 2. These thin sheets 15 are integrally molded from the same material as the rubber sheet 14, but their thickness is less than that of the rubber sheet 14, extending outwards in a flexible cantilever shape. When material flows in from the feeding end, it first contacts the thin sheets 15. Due to their thinner thickness and higher flexibility, the thin sheets 15 can undergo a larger bending deformation under force, thus buffering the material and gradually attenuating the kinetic energy of the material particles. Only then does the material contact the rubber sheet 14, forming a two-stage buffer protection. This composite structure of the thin sheets 15 and the rubber sheet 14 ensures that the flowers experience gradual, flexible resistance when colliding with the retaining structure, rather than a sudden, rigid impact, further reducing the risk of petals falling off. Simultaneously, the multiple thin sheets 15 are arranged parallel to the surface of the rubber sheet 14, with gaps between them, allowing small fragments of flowers to pass through without affecting the screening efficiency. The surface of the thin sheet 15 is smooth and burr-free, and it has rounded corners at the edges to avoid scratching the surface of the flower.

[0027] The sliding guide structure includes a second mounting base 18 fixed to the first baffle 11 and a first mounting base 16 fixed to two second baffles 24. The first mounting base 16 is provided with a vertical linear slide rail 17, and the second mounting base 18 has a linear groove 19 adapted to the linear slide rail 17. The linear slide rail 17 slides within the linear groove 19, allowing the second baffles 24 to slide smoothly up and down. The cross-sections of the linear slide rail 17 and the linear groove 19 are preferably T-shaped or wedge-shaped. This design not only ensures sliding accuracy but also serves as a limiting function, preventing the second baffles 24 from detaching from the first baffle 11.

[0028] Because the connecting arm 4 in the rotating steel structure frame can rotate vertically around its axis, it can drive the entire material distribution structure to rotate synchronously. During normal use, the connecting arm 4 is in a horizontal state, at which time the second baffle 24 extends into the screen box 2 for material distribution and guidance; when it is necessary to inspect or clean the screen, the connecting arm 4 can be rotated to a vertical state, at which time the entire material distribution structure is outside the screen box 2, and will not cause any obstruction to the inspection and maintenance operation.

[0029] A lifting adjustment component is also provided between the first baffle 11 and the second baffle 24 for adjusting the height of the second baffle 24. This lifting adjustment component includes a third positioning plate 20 integrally connected to the first baffle 11, and a transmission seat 21 fixed to the lower position of the second baffle 24. A threaded rod 22 is rotatably connected to the third positioning plate 20, and the threaded rod 22 is threadedly connected to the transmission seat 21. A knob 23 is also fixed to the upper end of the threaded rod 22. By rotating the knob 23, the threaded rod 22 can be manually rotated, thereby driving the transmission seat 21 to move up or down, and thus driving the second baffle 24 to rise or fall as a whole, achieving precise adjustment of the channel height. This lifting adjustment component uses a screw drive method and has a self-locking characteristic. Even if subjected to vibration after adjustment, it will not loosen on its own, ensuring the stability of the channel height during equipment operation. At the same time, the threaded rod 22 has fine threads, with a small lifting amount corresponding to each rotation, facilitating fine adjustment by the operator, allowing the channel height to accurately match the needs of different tea varieties and different material flow rates. The outer circumference of the knob 23 is provided with anti-slip texture, which makes it easy for operators to hold and rotate it reliably even when their hands are wet or oily, thus improving the convenience of adjustment.

[0030] In addition, two sets of rotating steel structure frames are symmetrically arranged on both sides of the screen box 2, jointly supporting the material distribution structure, ensuring balanced force on the material distribution structure and avoiding the skew problem caused by unilateral support. During normal operation, the V-shaped tip of the material distribution structure is accurately aligned with the center line of the screen box 2, ensuring uniform material distribution. When it is necessary to adjust the distribution angle or replace the material distribution structure, simply loosen the nut 13 to remove the entire material distribution structure from the positioning rod 10, making the operation simple and quick. The positioning rod 10 is equipped with multiple positioning steps of different heights. The sleeve 12 can be installed on the positioning steps of different heights as needed to achieve coarse adjustment of the overall height of the material distribution structure. This, combined with the lifting adjustment components, allows for fine adjustment, forming a two-stage adjustment mechanism that combines coarse and fine adjustments, improving both adjustment efficiency and accuracy. This modular design allows the same set of equipment to be quickly adapted to different specifications of screen boxes and different types of flower tea raw materials, greatly improving the equipment's versatility and adaptability.

[0031] The specific operating principle of this device is as follows: First step: Install the two sets of rotating steel structure frames on both sides of the upper end of the screen box 2 near the feeding end, and lock the connecting arm 4 in a horizontal position using the locking pin 7. Fit the sleeve 12 of the material distribution structure onto the positioning rod 10 and fix it with the nut 13. Adjust the height of the second baffle 24 by rotating the knob 23 according to the variety of tea to be processed and the material flow rate, so that the channel gap between the lower edge of the second baffle 24 and the screen is within a suitable range.

[0032] Step 2: Start the vibrator, and screen box 2 begins to vibrate. Material is fed into screen box 2 from the feed end, first contacting the V-shaped first baffle 11 and second baffle 24. Guided by the V-shaped structure, material concentrated in the middle area of ​​the screen is diverted to both sides, evenly distributed across the full width of the screen. The material moves forward under vibration; small pieces pass through the screen and fall to the lower layer, while whole pieces are discharged from the outlet. The flexible rubber sheet 14 acts as a buffer upon material impact, protecting the flowers from damage.

[0033] Third step: When the material flow rate changes, the operator can rotate the knob 23 at any time to drive the transmission seat 21 to move up and down through the threaded rod 22, thereby raising and lowering the second baffle 24 and adjusting the channel gap size so that the material throughput matches the actual flow rate and ensures the diversion effect.

[0034] Step 4: When the screen needs maintenance or cleaning, pull out the locking pin 7 and rotate the connecting arm 4 upwards to a vertical position. At this time, the entire material distribution structure will lift up along with the connecting arm 4, completely leaving the screen box 2 and freeing up operating space. After maintenance, rotate the connecting arm 4 back to a horizontal position and reinsert the locking pin 7 to lock it in place. If a deep cleaning of the material distribution structure is required, loosen the nut 13, pull the sleeve 12 off the positioning rod 10, and remove the entire material distribution structure for cleaning.

[0035] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A device for removing broken flowers in flower tea processing, comprising a frame (1), a sieve box (2) mounted on the frame (1), and a vibrator for driving the sieve box (2) to vibrate, characterized in that, Also includes: A rotating steel structure frame is located at the upper end of the screen box (2) and near the feeding end, including a first positioning plate (3) fixed on the screen box (2), and a connecting arm (4) is rotatably connected to the first positioning plate (3). The material distribution structure is detachably installed on the free end of the connecting arm (4) and includes a first baffle (11), a second baffle (24), and a rubber sheet (14) disposed on the second baffle (24). The second baffle (24) can be moved and adjusted in the vertical direction relative to the first baffle (11).

2. The flower petal removal device for flower tea processing according to claim 1, characterized in that, The first positioning plate (3) is fan-shaped and has a first locking hole (5) on it. The connecting arm (4) has a second locking hole (6). The second locking hole (6) can correspond to any of the first locking holes (5) and is fitted with a locking pin (7). The locking pin (7) is also magnetically attracted to the connecting arm (4).

3. The flower petal removal device for flower tea processing according to claim 2, characterized in that, The free end of the connecting arm (4) is provided with a second positioning plate (8), and the second positioning plate (8) is integrally connected with a connecting plate (9), and the connecting plate (9) is bolted to the connecting arm (4); A positioning rod (10) is also vertically fixed on the second positioning plate (8).

4. The flower petal removal device for flower tea processing according to claim 3, characterized in that, Both ends of the first baffle (11) are integrally connected with sleeves (12), which are sleeved on the positioning rod (10) and fixed by nuts (13).

5. The flower petal removal device for flower tea processing according to claim 4, characterized in that, The first baffle (11) and the second baffle (24) are both V-shaped, with their tips facing the feeding end of the screen box (2).

6. The flower petal removal device for flower tea processing according to claim 5, characterized in that, The rubber sheet (14) is integrally connected to a thin sheet (15) on the side facing the feeding end of the screen box (2), and the thickness of the thin sheet (15) is less than the thickness of the rubber sheet (14).

7. The flower petal removal device for flower tea processing according to claim 6, characterized in that, A sliding guide structure is provided between the first baffle (11) and the second baffle (24); The sliding guide structure includes a first mounting seat (16) fixed on the second baffle (24) and a second mounting seat (18) fixed on the first baffle (11). The first mounting base (16) is integrally connected with a linear slide rail (17), and the second mounting base (18) is provided with a linear slide groove (19), and the linear slide rail (17) slides inside the linear slide groove (19).

8. The flower petal removal device for flower tea processing according to claim 7, characterized in that, The cross-sections of the linear guide rail (17) and the linear groove (19) are T-shaped or wedge-shaped.

9. The flower petal removal device for flower tea processing according to claim 8, characterized in that, A lifting adjustment component is provided between the first baffle (11) and the second baffle (24); The lifting adjustment component includes a third positioning plate (20) fixed on the first baffle (11), a transmission seat (21) fixed on the second baffle (24), and a threaded rod (22) rotatably connected to the third positioning plate (20) and threadedly connected to the transmission seat (21). A knob (23) is fixed to the end of the threaded rod (22).

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