Secondary conveying device for tea processing
By using a multi-stage inclined conveying mechanism and lifting component design, the problems of tea accumulation and damage during the tea conveying process are solved, achieving uniform spreading and efficient conveying of tea, thus improving the quality and efficiency of tea processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGSHAN TIANCHENG AGRI DEV CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional tea conveying devices are prone to accumulation, damage, and inaccurate grading, failing to meet the requirements for loose and uniform spreading of teas such as honeysuckle, thus affecting processing quality and efficiency.
The design employs a multi-stage inclined conveying mechanism and lifting components, utilizing height differences and changes in inclination angles to achieve the natural scattering and even spreading of tea leaves. Combined with a drive motor and rotating rollers to control the conveying speed, vibration damage is avoided.
It effectively prevents accumulation, reduces breakage rate, improves the uniformity of tea dispersion and brewing quality, enhances the accuracy of grade selection, and adapts to the matching needs of different processing equipment.
Smart Images
Figure CN224449057U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea processing technology, and in particular to a secondary conveying device for tea processing. Background Technology
[0002] In the tea processing industry, conveying equipment is a core component connecting multiple processes such as withering, rolling, sieving, and drying, and its performance directly affects the quality and efficiency of tea processing. Traditional tea conveying devices generally adopt single-stage horizontal or inclined conveying structures, which have two major technical bottlenecks: First, there is a lack of an effective material dispersing mechanism during the material conveying process. Tea leaves (especially leaf-type teas such as honeysuckle) are prone to accumulation, leading to conveyor blockage. Moreover, the accumulated tea leaves cannot meet the uniform spreading requirements for subsequent grading, seriously affecting the efficiency of subsequent grading. Second, in order to solve the problems of differential pressure accumulation and spreading, some devices rely on vibration devices (such as vibrating motors and elastic supports) to apply high-frequency vibration to the conveyor belt to achieve material dispersal. However, this high-frequency vibration can easily damage tea cell structure, causing tea juice to spill out and aroma to be lost, directly reducing the sensory quality and nutritional value of the finished tea.
[0003] The shortcomings of traditional conveying technology are particularly pronounced for teas like honeysuckle, which have unique shapes and material characteristics. Honeysuckle leaves have a high moisture content (up to 80%), and the overlapping petals easily create localized hot and humid environments, leading to the degradation of active ingredients such as anthocyanins and causing color deterioration. Traditional single-stage conveying cannot achieve "simultaneous conveying and material distribution," significantly increasing quality risks. Furthermore, existing equipment cannot meet the process requirement of "fully unfolded leaves for color sorting and grading" in subsequent processing, resulting in a grading accuracy of less than 70% for honeysuckle tea leaves, severely impacting processing economics.
[0004] To address the aforementioned industry pain points, a new type of conveying device is needed that combines high-efficiency bulk material handling, flexible conveying, and equipment adaptability to solve key problems such as accumulation damage and poor adaptability in tea processing.
[0005] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a secondary conveying device for tea processing, comprising a first conveying mechanism, a second conveying mechanism, and a feeding box. The feeding box is connected to both the first and second conveying mechanisms. The first and second conveying mechanisms are inclined. The lower vertical ends of the first and second conveying mechanisms are connected to the feeding box. The higher vertical ends of the first and second conveying mechanisms are interconnected via a connector, with the first conveying mechanism positioned vertically above the second conveying mechanism. The lower vertical end of the connector is connected to a third conveying mechanism.
[0007] According to a preferred embodiment, the first and second conveying mechanisms have a first height difference at their vertical upper ends. The second and third conveying mechanisms have a second height difference. The connecting portions of the first, second, and third conveying mechanisms and the connecting member are located on the same vertical axis.
[0008] According to a preferred embodiment, the connector includes a first side plate connected to a first conveying mechanism and a second side plate connected to a second conveying mechanism. The first and second side plates are connected to a vertical plate at the same height at different inclination angles. The vertical plate is connected to a third conveying mechanism.
[0009] According to a preferred embodiment, a plurality of lifting members are provided on the first and second conveying mechanisms, arranged at equal intervals along the rotation direction of the first and second conveying mechanisms. The plurality of lifting members are perpendicular to the end faces of the first and second conveying mechanisms and extend outward.
[0010] According to a preferred embodiment, the first conveying mechanism, the second conveying mechanism, and the third conveying mechanism are all equipped with drive motors. Each of the first, second, and third conveying mechanisms contains a plurality of rotatable rollers connected to the drive motors.
[0011] According to a preferred embodiment, the first, second, and third conveying mechanisms are each equipped with a cover for dust prevention and preventing tea leaves from falling. The covers are connected to the support components of the first, second, and third conveying mechanisms.
[0012] According to a preferred embodiment, the third conveying mechanism is inclined, and the highest vertical point of the third conveying mechanism is connected to the discharge box. The lowest vertical point of the third conveying mechanism is connected to the lower vertical end of the connecting member.
[0013] According to a preferred embodiment, the tilt angle of the third conveying mechanism is smaller than the tilt angle of the first or second conveying mechanism.
[0014] According to a preferred embodiment, a plurality of support frames are provided vertically below the first conveying mechanism, the second conveying mechanism, and the third conveying mechanism.
[0015] According to a preferred embodiment, an observation window is provided on the horizontal side of the enclosure, and the observation window is made of transparent material. Attached Figure Description
[0016] Figure 1 This is a simplified structural diagram of a secondary conveying device for tea processing according to a preferred embodiment of the present invention;
[0017] Figure 2 This is a simplified exploded view of the first, second, or third conveying mechanism according to a preferred embodiment of the present invention.
[0018] Figure 3 This is a simplified structural diagram of a secondary conveying device for tea processing, provided by a preferred embodiment of this utility model, from another perspective.
[0019] List of reference numerals
[0020] 101: First conveying mechanism; 102: Second conveying mechanism; 103: Third conveying mechanism; 104: Lifting component; 105: Cover; 106: Observation window; 200: Feed box; 300: Connecting component; 301: First side plate; 302: Second side plate; 303: Vertical plate; 400: Discharge box. Detailed Implementation
[0021] The following is a detailed explanation with reference to the accompanying drawings.
[0022] Example 1
[0023] This utility model provides a secondary conveying device for tea processing, such as... Figure 1 and Figure 3 As shown, the system includes a first conveying mechanism 101, a second conveying mechanism 102, and a feed hopper 200. The feed hopper 200 is connected to both the first conveying mechanism 101 and the second conveying mechanism 102. The first conveying mechanism 101 and the second conveying mechanism 102 are inclined. The lower vertical ends of the first conveying mechanism 101 and the second conveying mechanism 102 are connected to the feed hopper 200. The higher vertical ends of the first conveying mechanism 101 and the second conveying mechanism 102 are connected to each other via a connector 300, with the first conveying mechanism 101 located vertically above the second conveying mechanism 102. The lower vertical end of the connector 300 is connected to a third conveying mechanism 103.
[0024] This invention utilizes a secondary conveying device for tea processing, taking advantage of the height difference between various conveying mechanisms to disperse the tea leaves and prevent accumulation. This device can be easily moved and used between different tea processing machines. The height difference setting allows the tea leaves to be shaken and spread out, while avoiding the damage and quality reduction issues that can occur with shaking devices, thus ensuring the integrity of the tea leaves. This invention ensures uniform dispersion of the tea leaves, allowing the honeysuckle tea leaves to fully disperse and preventing accumulation, facilitating subsequent tea grading and sorting, and providing convenience for timely transfer and subsequent grading and packaging. The gradual lifting of the tea leaves by the first conveying mechanism 101 and the second conveying mechanism 102 also prevents accumulation during transportation, and the lifting component 104 ensures the thickness of the spread tea leaves, providing assurance for subsequent tea processing.
[0025] According to a preferred embodiment, a first height difference is provided between the vertical ends of the first conveying mechanism 101 and the second conveying mechanism 102. A second height difference is provided between the second conveying mechanism 102 and the third conveying mechanism 103. The connecting portions of the first conveying mechanism 101, the second conveying mechanism 102, the third conveying mechanism 103, and the connecting member 300 are located on the same vertical axis. By setting the first height difference between the vertical ends of the first conveying mechanism 101 and the second conveying mechanism 102, and the second height difference between the second conveying mechanism 102 and the third conveying mechanism 103, a progressively ascending three-dimensional conveying structure is formed. This invention utilizes the change in gravitational potential energy to allow the tea leaves to fall naturally. Combined with the connecting design on the same vertical axis, it ensures the continuity of the vertical falling path of the tea leaves and avoids accumulation or blockage caused by deviation of the conveying path. This design enhances the material dispersion effect brought about by the height difference, keeping the tea leaves in a loose state during the conveying process and providing a uniform material base for subsequent processing. This scattering method is especially useful in the processing of honeysuckle tea leaves, as it allows each individual honeysuckle tea leaf to fully unfold, effectively improving its brewing quality.
[0026] It should be noted that, due to the light weight and high air resistance of tea leaves, dropping them from a height will not cause damage; rather, mechanical vibration is more likely to cause tea leaf breakage. This invention utilizes a non-contact, flexible conveying method for bulk materials, eliminating the mechanical vibration component and thus effectively reducing the tea leaf breakage rate.
[0027] According to a preferred embodiment, the connector 300 includes a first side plate 301 connected to the first conveying mechanism 101 and a second side plate 302 connected to the second conveying mechanism 102. The first side plate 301 and the second side plate 302 are connected to a vertical plate 303 at the same height at different inclination angles. The vertical plate 303 is connected to the third conveying mechanism 103. The connector 300, with its structure of first side plates 301 and second side plates 302 at different inclination angles connected to a vertical plate 303 at the same height, achieves a smooth transition between the upper and lower conveying mechanisms. The differentiated inclination angle design can accommodate the height difference between the first conveying mechanism 101 (upper layer) and the second conveying mechanism 102 (lower layer), causing a speed difference in the tea leaves during the transfer process due to the change in the inclination angle, further dispersing the tea leaves during the collision and sliding of the vertical drop. The vertical plate 303 is perpendicularly connected to the third conveying mechanism 103, ensuring stable material flow at the transfer point, avoiding tea leaf stagnation caused by sudden interface changes, and improving the collaborative efficiency of the multi-stage conveying system.
[0028] According to a preferred embodiment, such as Figure 2 As shown, the first conveying mechanism 101 and the second conveying mechanism 102 are equipped with a plurality of lifting members 104 arranged at equal intervals along the rotation direction of the first conveying mechanism 101 and the second conveying mechanism 102. The plurality of lifting members 104 are perpendicular to the end faces of the first conveying mechanism 101 and the second conveying mechanism 102 and extend outward. The equally spaced lifting members 104 extend outward perpendicular to the end faces of the conveying mechanism, forming a regular material blocking structure during the conveying process. When the conveying mechanism is running, the lifting members 104 continuously tumble and stir the bottom layer of tea leaves upward, breaking the material accumulation layer and forcibly controlling the spreading thickness (usually ≤5cm). This design replaces the traditional vibration device, achieving non-damaging material spreading through mechanical lifting. It avoids the damage to the tea cell structure caused by high-frequency vibration (such as tea juice spillage and leaf damage), and ensures the uniform spreading of tea leaves on the conveyor belt through directional tumbling. It is especially suitable for the protective conveying of leaf-type teas such as honeysuckle.
[0029] According to a preferred embodiment, the first conveying mechanism 101, the second conveying mechanism 102, and the third conveying mechanism 103 are all equipped with drive motors. Each of the three conveying mechanisms has several rotatable rollers connected to the drive motors. The combination of independent drive motors and rollers enables speed adjustment for each conveying mechanism. By controlling the speed of the drive motors, the conveying speed can be dynamically adjusted to match the processing rhythm of subsequent processes such as withering and rolling. The precision transmission of the rollers ensures smooth conveyor belt operation, avoiding material accumulation due to speed fluctuations. Especially during inclined conveying, the coupling control of speed and inclination angle ensures uniform tea leaf lifting and consistent material distribution.
[0030] According to a preferred embodiment, the first conveying mechanism 101, the second conveying mechanism 102, and the third conveying mechanism 103 are each equipped with a cover 105 for dust prevention and tea leaf drop prevention. The cover 105 is connected to the support components of the first conveying mechanism 101, the second conveying mechanism 102, and the third conveying mechanism 103. The fully enclosed cover 105 can be made of food-grade stainless steel and is connected to the support components through a snap-fit structure to form a closed conveying space. Its technical effects include: dust and water protection, preventing dust (such as ash from tea-frying pans) and water vapor in the processing environment from contaminating the tea leaves; drop prevention protection, preventing edge tea leaves from being thrown out by centrifugal force during inclined conveying and causing material loss; noise control, the damping layer inside the cover can reduce the noise generated by the friction between the drive motor and the conveyor belt, improving the workshop working environment.
[0031] According to a preferred embodiment, the third conveying mechanism 103 is inclined, and the highest vertical point of the third conveying mechanism 103 is connected to the discharge box 400. The lowest vertical point of the third conveying mechanism 103 is connected to the lower vertical end of the connector 300. The third conveying mechanism 103 adopts a small inclination angle to form a slow conveying section, which, together with the top discharge box 400, achieves stable material discharge. This design solves the problem of tea leaves sliding too fast and accumulating at the discharge port due to excessive inclination in traditional end conveying, and is especially suitable for conveying fresh leaves with high moisture content. The volume design of the discharge box 400 can match the feeding rhythm of the subsequent grading screen, avoiding the loss of conveying efficiency caused by frequent start-stop.
[0032] According to a preferred embodiment, the inclination angle of the third conveying mechanism 103 is smaller than that of the first conveying mechanism 101 or the second conveying mechanism 102. The first conveying mechanism 101, the second conveying mechanism 102, and the third conveying mechanism 103 form a three-stage speed gradient of "accelerated material distribution - uniform speed transition - slow speed discharge". The first conveying mechanism 101 and the second conveying mechanism 102 achieve rapid lifting and initial material distribution, the connecting member 300 shakes the tea leaves through the height difference, and the third conveying mechanism 103 ensures that the material enters the discharge box with a stable thickness. This gradient design allows the tea leaves to undergo several natural scatterings within a 1.5-2m conveying path, improving the uniformity of material distribution by more than 60% compared to traditional single-stage conveying (especially for the unfolding rate of honeysuckle petals).
[0033] According to a preferred embodiment, several support frames are provided vertically below the first conveying mechanism 101, the second conveying mechanism 102, and the third conveying mechanism 103. The support frames are double-fixed using anchor bolts and anti-slip pads to adapt to workshop floors with varying flatness. After calibration with a level, the tilt angle accuracy of each conveying mechanism can be ensured, preventing material accumulation on one side due to equipment tilt. For scenarios requiring cross-equipment connection (such as connecting the outlet of a blanching machine to the inlet of a color sorter), the height adjustment function of the support frames can achieve vertical drop compensation of 0-30cm, improving the versatility of the device and its adaptability to production lines.
[0034] According to a preferred embodiment, an observation window 106 is provided on the horizontal side of the cover 105, and the observation window 106 is made of transparent material. The observation window 106 enables full-process visual monitoring. Operators can observe in real time the thickness of the tea leaves spread on the conveyor belt, and whether there is dust accumulation or tea leaf clumping inside the cover. This design avoids the drawback of traditional equipment requiring shutdown and opening of the cover for inspection, and shortens the troubleshooting time.
[0035] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. This utility model specification contains multiple inventive concepts; phrases such as "preferred" or "according to a preferred embodiment" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the feature introduced by "preferred" is only an optional mode and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.
Claims
1. A secondary conveying device for tea processing, characterized by, It includes a first conveying mechanism (101), a second conveying mechanism (102), and a feed box (200). The feed box (200) is connected to the first conveying mechanism (101) and the second conveying mechanism (102) respectively. The first conveying mechanism (101) and the second conveying mechanism (102) are arranged at an angle. The lower vertical ends of the first conveying mechanism (101) and the second conveying mechanism (102) are respectively connected to the feed box (200). The higher vertical ends of the first conveying mechanism (101) and the second conveying mechanism (102) are connected to each other through a connector (300), and the first conveying mechanism (101) is located vertically above the second conveying mechanism (102). The lower vertical end of the connector (300) is connected to the third conveying mechanism (103).
2. The secondary conveying device for tea processing according to claim 1, characterized in that, The first conveying mechanism (101) and the second conveying mechanism (102) are provided with a first height difference at their vertical ends, wherein, The second conveying mechanism (102) and the third conveying mechanism (103) are provided with a second height difference, and the connecting parts of the first conveying mechanism (101), the second conveying mechanism (102), the third conveying mechanism (103) and the connector (300) are located on the same vertical axis.
3. The secondary conveying device for tea processing according to claim 2, characterized in that, The connector (300) includes a first side plate (301) connected to the first conveying mechanism (101) and a second side plate (302) connected to the second conveying mechanism (102), wherein, The first side plate (301) and the second side plate (302) are connected to a vertical plate (303) at the same height at different inclination angles, and the vertical plate (303) is connected to the third conveying mechanism (103).
4. The secondary conveying device for processing tea leaves according to claim 3, characterized in that, The first conveying mechanism (101) and the second conveying mechanism (102) are provided with a plurality of lifting members (104) arranged at equal intervals along the rotation direction of the first conveying mechanism (101) and the second conveying mechanism (102). The plurality of lifting members (104) are perpendicular to the end faces of the first conveying mechanism (101) and the second conveying mechanism (102) and extend outward.
5. The secondary conveying device for tea processing according to claim 4, characterized in that, The first conveying mechanism (101), the second conveying mechanism (102), and the third conveying mechanism (103) are all equipped with a drive motor. The first conveying mechanism (101), the second conveying mechanism (102), and the third conveying mechanism (103) are equipped with a plurality of rotating rollers that are connected to the drive motor and can rotate.
6. The secondary conveying device for tea processing according to claim 5, characterized in that, The first conveying mechanism (101), the second conveying mechanism (102) and the third conveying mechanism (103) are respectively provided with a cover (105) for dust prevention and preventing tea leaves from falling. The cover (105) is connected to the support components of the first conveying mechanism (101), the second conveying mechanism (102) and the third conveying mechanism (103).
7. The secondary conveying device for tea processing according to claim 6, characterized in that, The third conveying mechanism (103) is inclined, and the highest vertical point of the third conveying mechanism (103) is connected to the discharge box (400), and the lowest vertical point of the third conveying mechanism (103) is connected to the lower vertical end of the connector (300).
8. The secondary conveying device for processing tea leaves according to claim 7, characterized by The tilt angle of the third transmission mechanism (103) is smaller than that of the first transmission mechanism (101) or the second transmission mechanism (102).
9. The secondary conveying device for processing tea leaves according to claim 8, characterized by Several support frames are provided vertically below the first conveying mechanism (101), the second conveying mechanism (102), and the third conveying mechanism (103).
10. The secondary conveying device for processing tea leaves according to claim 9, characterized by An observation window (106) is provided on the horizontal side of the cover (105), and the observation window (106) is made of transparent material.