Multi-stage stepping type transmission device and method of tea leaf tray arranging machine

Abstract

The invention discloses a multi-stage stepping type transmission device of a tea leaf tray arranging machine and a method of the multi-stage stepping type transmission device. The conveying assembly is installed on the machine frame and used for conveying tea leaves, and the conveying assembly comprises at least two sets of X-axis conveying lines which are arranged in the first direction and connected in sequence and a Y-axis conveying line which is arranged in the second direction perpendicular to the first direction. The speed difference is used for pulling out gaps among tea leaves, the initial state is effectively broken, a preliminary longitudinal queue is formed, multiple tea leaves are prevented from entering a subsequent link at the same time, the Y-axis conveying line receives materials at the high speed not lower than two times of the last-stage speed of the X-axis, 90-degree steering is achieved, meanwhile, the tea leaf distance is greatly increased again, and the tea leaves are evenly distributed. And the fully dispersed tea leaves enter the posture sorting assembly at stable intervals, so that a plurality of tea leaves are fundamentally prevented from entering the same carding channel by mistake, and a reliable premise is provided for a subsequent plate placing procedure.

Description

Technical Field

[0001] This invention relates to the field of tea processing technology, and in particular to a multi-stage stepping transmission device and method for tea tray arranging machines. Background Technology

[0002] Tea is a traditional Chinese famous tea, and "flattening" is a common process in its processing. This step can not only shape the unique shape of the tea leaves, but also optimize the release of flavor. The flattening process of different types of tea is not only adapted to the characteristics of the tea, but also carries the wisdom of traditional tea-making techniques. Among them, the tray arrangement process before pressing has a significant impact on the quality of the final product. The tea leaves need to be arranged neatly in a predetermined direction and quantity to ensure that the shape is uniform and beautiful after pressing, and meets the standardization requirements.

[0003] However, in current large-scale tea production, the tea leaves are first manually pinched, and then piled on a simple conveyor belt. Operators then manually pick up the tea leaves one by one at the end of the conveyor belt or at the tray placement station and arrange them in the pressing mold according to a preset direction and quantity. This traditional method has drawbacks. The manual picking and orientation adjustment are cumbersome and difficult to match the production capacity requirements of large-scale production. At the same time, manual picking requires touching the tea leaves, which can easily cause the pinched structure to become loose, deformed, and damaged. Furthermore, the tea leaves piled on the conveyor belt can become intertwined, and the pinched shape can be further damaged when separated, directly affecting the appearance of the finished product. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides the following technical solution: The tea tray arrangement machine features a multi-stage stepper drive system, including: frame; A conveying assembly, mounted on the frame, is used to convey tea leaves. It includes at least two sets of sequentially connected X-axis conveying lines arranged along a first direction and a Y-axis conveying line arranged along a second direction perpendicular to the first direction. The discharge end of the X-axis conveying line is connected to the inlet end of the Y-axis conveying line. In this process, the conveying speed of at least two sets of X-axis conveyor lines increases progressively along the conveying direction, and the ratio of the conveying speed of the Y-axis conveyor line to the conveying speed of the last X-axis conveyor line is N:1, where N ≥ 2, so that the tea leaves can pass through the discharge end of the Y-axis conveyor line in single pieces.

[0005] As an improvement to the above technical solution, the discharge end of the Y-axis conveyor line is provided with a posture sorting component. The posture sorting component includes multiple spaced guide members, and the guide members form a sorting channel for adjusting the posture of the tea leaves.

[0006] As an improvement to the above technical solution, one set of the X-axis conveyor lines is connected to the drive shaft of the adjacent next-level X-axis conveyor line through a transmission component, and the transmission component is configured to make the conveying speed of the adjacent next-level X-axis conveyor line greater than that of the previous level X-axis conveyor line.

[0007] As an improvement to the above technical solution, the transmission mechanism includes a driving wheel on the drive shaft of the previous X-axis conveyor line and a driven wheel on the drive shaft of the next X-axis conveyor line, wherein the driving wheel and the driven wheel are meshed together.

[0008] As an improvement to the above technical solution, a stopper is provided at one end of the Y-axis conveyor line that is away from the X-axis conveyor line to stop the tea leaves.

[0009] As an improvement to the above technical solution, N is 7, and the last stage of the X-axis conveyor line is made of non-woven fabric.

[0010] As an improvement to the above technical solution, a cleaning component is also included. The cleaning component includes a fixed sleeve located at one end of the drive shaft of the X-axis conveyor line 20. The fixed sleeve contains a plurality of pneumatic units arranged circumferentially. The pneumatic units are connected to triggers that can reciprocate with the rotation of the drive shaft, and are used to periodically generate airflow during rotation. An air blowing pipe communicating with the pneumatic units is provided below the X-axis conveyor line. The air blowing pipe has a plurality of air jets facing the lower surface of the X-axis conveyor line.

[0011] As an improvement to the above technical solution, the pneumatic unit includes a cylinder and an inlet pipe and an outlet pipe connected to the cylinder and allowing airflow to flow in one direction. The triggering element includes a piston inside the cylinder, a piston rod fixedly mounted on the piston, and multiple sets of push blocks fixedly mounted on the drive shaft. A spring for resetting is sleeved on the piston rod, and the outlet pipe is connected to the blowing pipe.

[0012] The multi-stage stepping transmission method for tea tray display machines, applied to the aforementioned multi-stage stepping transmission method for tea tray display machines, includes the following steps: S1: Tea leaves are conveyed in a stepwise manner along the first direction through at least two sequentially connected X-axis conveyor lines, and the aggregated tea leaves are initially dispersed by gradually increasing conveying speed during the conveying process. S2: Transfer the tea leaves, which have been initially dispersed by the last stage of the X-axis conveyor line, to the Y-axis conveyor line; S3: Via the Y-axis conveyor line at a speed Tea leaves are transported in the second direction, among which > .

[0013] The beneficial effects of this invention are: After the tea leaves are pinched, they are gradually accelerated through at least two stages of X-axis conveyor lines. The speed difference is used to "pull out" gaps between the tea leaves, effectively breaking the initial state and forming a preliminary longitudinal queue. This prevents multiple tea leaves from entering the subsequent stages at the same time. The Y-axis conveyor line receives the material at a high speed of no less than twice the speed of the final stage of the X-axis. While achieving a 90-degree turn, it further increases the spacing between the tea leaves, ensuring that adjacent tea leaves have sufficient independent space before entering the posture sorting component. After being fully dispersed, the tea leaves enter the posture sorting component at a stable spacing, fundamentally preventing multiple tea leaves from mistakenly entering the same sorting channel and providing a reliable prerequisite for the subsequent traying process. By using the physical constraints and friction of the sorting channel, the tea leaves are forced to change from an arbitrary tilted posture to a straight and oriented arrangement, which significantly improves the neatness and standardization of the finished product. The entire process adopts non-human contact conveying and sorting, avoiding the loosening, deformation or damage caused by traditional manual picking, effectively maintaining the fine shape of the tea leaves after processing. This not only improves production efficiency, but also ensures that the tea leaves in the receiving tray are evenly and beautifully arranged, meeting the needs of high-quality packaging or processing. Attached Figure Description

[0014] Figure 1 This is a top view of the overall structure of the present invention; Figure 2 This is a front view of a partial structure of the present invention; Figure 3 This is a side view of a partial structure of the present invention; Figure 4 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0015] Reference numerals: 10, frame; 20, X-axis conveyor line; 21, fixed sleeve; 22, driving wheel; 23, driven wheel; 24, air blowing pipe; 25, cylinder; 26, piston; 27, piston rod; 28, spring; 29, air outlet pipe; 210, air inlet pipe; 211, push block; 30, Y-axis conveyor line; 31, stop component; 40, posture adjustment assembly; 50, receiving tray. Detailed Implementation

[0016] 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.

[0017] Example 1 The tea tray arrangement machine features a multi-stage stepper drive system, including: Rack 10; A conveying assembly, mounted on the frame 10, is used to convey tea leaves. It includes at least two sets of X-axis conveying lines 20 arranged along a first direction and a Y-axis conveying line 30 arranged along a second direction perpendicular to the first direction. The discharge end of the X-axis conveying line 20 is connected to the feed end of the Y-axis conveying line 30. In this process, the conveying speed of at least two sets of X-axis conveyor lines 20 increases progressively along the conveying direction, and the ratio of the conveying speed of the Y-axis conveyor line 30 to the conveying speed of the last X-axis conveyor line 20 is N:1, where N ≥ 2, so that the tea leaves can pass through the discharge end of the Y-axis conveyor line in single pieces. The discharge end of the Y-axis conveyor line 30 is provided with a posture sorting component, which includes multiple spaced guide members, and the guide members form a sorting channel for adjusting the posture of the tea leaves. Specifically, a set of pinch-tip feeding holes are arranged side by side along the width direction on the first-stage X-axis conveyor line 20. When the worker inserts the tea leaves into the feeding holes, the inserted tea leaves fall into the first-stage X-axis conveyor line 20. The conveyor line starts and drives the tea leaves forward in the first direction. When the tea leaves are sent from the previous stage X-axis conveyor line 20 to the next stage, the speed of the next stage X-axis conveyor line 20 is higher than that of the previous stage. This progressively increasing speed difference means that the tea leaves are "pulled away" by the next stage X-axis conveyor line 20 at a faster speed each time they are transferred. This instantly creates a gap between the tea leaves and the preceding and following leaves. After multiple accelerations by at least two sets of X-axis conveyor lines 20, the tea leaves are effectively dispersed, forming a preliminary longitudinal queue and spacing. This completely prevents multiple tea leaves from accumulating and entering the subsequent turning stage. Simultaneously, it pre-processes the transition between the first and second directions. The pre-dispersed tea leaves reach the discharge end of the final X-axis conveyor line 20, where the Y-axis conveyor line 30 receives the incoming material and instantly completes a 90-degree turn from the first direction (longitudinal) to the second direction (lateral). At this transition point, the Y-axis... The conveying speed of conveyor line 30 is N times (N≥2) that of the final X-axis conveyor line 20. This is the largest speed increase in the entire process, and its effect is to significantly widen the spacing again: while the next tea leaf is still moving on the slow X-axis conveyor line, the previous tea leaf has been quickly "pulled away" by the high-speed Y-axis conveyor line 30, decisively and several times widening the spacing between them. The tea leaves maintain their spacing on the Y-axis conveyor line 30, making crucial preparations for the "single-piece, single-channel" processing of the posture sorting component in the next stage, avoiding... Multiple tea leaves, due to their close proximity, simultaneously enter the same combing channel. This prevents two or more tea leaves from entering the same channel at the same time, thus avoiding problems in the tray arrangement process. The dispersed tea leaf queues reach the discharge end of the Y-axis conveyor line 30 and enter the posture sorting component 40. As the tea leaves pass through, their tilted posture is physically constrained and rubbed by both sides of the combing channel, forcing them to be uniformly "combed" from various tilted postures into a stable and straight posture, and evenly laid out and oriented in the receiving tray 50, ensuring the neatness, aesthetics, and standardization of the finished products in the receiving tray 50.

[0018] In one embodiment, the drive shafts of one set of X-axis conveyor lines 20 are connected to the drive shafts of the adjacent next-level X-axis conveyor line 20 via a transmission member, and the transmission member is configured to make the conveying speed of the adjacent next-level X-axis conveyor line 20 greater than that of the previous-level X-axis conveyor line 20. The transmission mechanism includes a drive wheel 22 disposed on the drive shaft of the previous-level X-axis conveyor line 20 and a driven wheel 23 disposed on the drive shaft of the next-level X-axis conveyor line 20, wherein the drive wheel 22 and the driven wheel 23 are meshed together. To achieve a stable speed gradient, adjacent X-axis conveyor lines 20 are connected by a transmission mechanism. A drive wheel 22 is fixedly mounted on the drive shaft of one X-axis conveyor line 20, and a driven wheel 23 is correspondingly mounted on the drive shaft of the next adjacent X-axis conveyor line 20. The parameters of the drive wheel 22 and driven wheel 23 are preset; for example, the number of teeth on the drive wheel 22 is greater than the number of teeth on the driven wheel 23. Let the number of teeth on the drive wheel be... The number of teeth on the driven gear is , : =1.5:1, so when the driving wheel rotates 1 revolution with the drive shaft of the previous stage, the driven wheel will rotate 1.5 revolutions, making the drive shaft speed of the next stage X-axis conveyor line 20 higher than that of the previous stage, thereby driving the conveying speed of the next stage conveyor line to be stably higher than that of the previous stage. The tea leaves are first sent to the feed end of the first stage X-axis conveyor line 20. The first stage X-axis conveyor line 20 drives its drive shaft to rotate through the motor. Its other set of drive shafts drives the driving wheel 22 to rotate. The driving wheel 22 drives the driven wheel 23 of the next stage and the corresponding drive shaft to rotate through meshing transmission, so that each stage of the X-axis conveyor line 20 operates according to the preset speed gradient.

[0019] In one embodiment, a stopper 31 is provided at one end of the Y-axis conveyor line 30 away from the X-axis conveyor line 20 to stop the tea leaves. When the tea leaves are conveyed from the X-axis conveyor line 20 to the Y-axis conveyor line due to inertia, it can buffer and stop the tea leaves, preventing them from rushing out of the Y-axis conveyor line 30 due to excessive inertia.

[0020] In one embodiment, N is 7, and the last-stage X-axis conveyor line is made of non-woven fabric. On the one hand, the high ratio of 7 times speed can significantly increase the processing capacity of the Y-axis conveyor line 30 per unit time, meeting the production capacity requirements of large-scale automated tray placement. On the other hand, assuming the last-stage X-axis conveyor speed is v, then the Y-axis speed is 7v. When the next tea leaf is still moving at speed v on the last-stage X-axis, the previous tea leaf has already been "pulled away" from the junction point by the Y-axis conveyor line 30 at a high speed of 7v. The distance between adjacent tea leaves can be instantly expanded to more than 7 times, forming a completely independent lateral conveying space, fundamentally preventing tea leaves from squeezing each other on the Y-axis conveyor line, thus achieving "single-piece single-channel". The combing provides ample space and ensures that the non-woven fabric has moderate friction and breathability. On the one hand, it can provide stable conveying traction for the tea leaves, preventing them from slipping or deviating on the last-stage X-axis conveyor line 20 due to speed changes or turning impacts. On the other hand, the softness of the non-woven fabric can prevent scratching the surface of the tea leaves, while the breathability reduces static electricity generated between the tea leaves and the conveyor line due to friction, preventing the tea leaves from being attracted to the conveyor line by static electricity, which could cause conveying jams or residues, thus ensuring smooth conveying and the quality of the tea leaves.

[0021] In one embodiment, a cleaning assembly is further included. The cleaning assembly includes a fixed sleeve 21 disposed at one end of the drive shaft of the X-axis conveyor line 20. The fixed sleeve 21 is provided with a plurality of pneumatic units arranged circumferentially. The pneumatic units are connected to triggers that can reciprocate with the rotation of the drive shaft, and are used to periodically generate airflow during rotation. An air blowing pipe 24 communicating with the pneumatic units is provided below the X-axis conveyor line 20. The air blowing pipe 24 is provided with a plurality of air jets facing the lower surface of the X-axis conveyor line 20. The pneumatic unit includes a cylinder 25 and an air inlet pipe 210 and an air outlet pipe 29 communicating on the cylinder 25 and allowing airflow to flow in one direction. The triggers include a piston 26 disposed in the cylinder 25, a piston rod 27 fixedly disposed on the piston 26, and a plurality of push blocks 211 fixedly disposed on the drive shaft. A spring 28 for resetting is sleeved on the piston rod 27. The air outlet pipe communicates with the air blowing pipe 24. When the drive shaft drives the X-axis conveyor line 20, the push block 211 rotates synchronously with the drive shaft. Each time it rotates to the corresponding position of the piston rod 27, it pushes the piston rod 27 to drive the piston 26 to compress gas in the cylinder 25. At this time, the one-way valve of the air inlet pipe 210 is closed and the one-way valve of the air outlet pipe 29 is open. The compressed airflow enters the air blowing pipe 24 through the air outlet pipe and is then sprayed towards the lower surface of the X-axis conveyor line 20 through the jet nozzle. When the push block 211 leaves the piston rod 27, the piston 26 moves back under the reset action of the spring 28, and a negative pressure is formed in the cylinder 25. The one-way valve of the air inlet pipe 210 opens to draw in outside air, storing power for the next jet. Through the continuous rotation of the drive shaft, the piston 26 is periodically pushed, causing the air blowing pipe 24 to produce intermittent, high-frequency airflow jets. This can efficiently remove debris from the X-axis conveyor line, ensure the cleanliness of the conveyor line surface, prevent impurities from sticking to the tea leaves and affecting the appearance, and at the same time prevent debris accumulation from causing the conveyor line to jam, ensuring the stability of the conveyor.

[0022] Example 2 The multi-stage stepping transmission method for a tea tray display machine, applied to the multi-stage stepping transmission device of the tea tray display machine described in Example 1, includes the following steps: S1: Tea leaves are conveyed in a stepwise manner along the first direction through at least two sequentially connected X-axis conveyor lines, and the aggregated tea leaves are initially dispersed by gradually increasing conveying speed during the conveying process. S2: Transfer the tea leaves, which have been initially dispersed by the last stage X-axis conveyor line 20, to the Y-axis conveyor line 30; S3: Via the Y-axis conveyor line 30 at a speed Tea leaves are transported in the second direction, among which > ; S4: The posture adjustment component 40 adjusts the posture of the tea leaves output from the Y-axis conveyor line 30 so that the tea leaves enter the subsequent process in a predetermined posture.

[0023] The tea leaves to be processed are evenly fed into the feed end of the first-stage X-axis conveyor line 20. The first-stage X-axis conveys the tea leaves in the first direction at an initial speed. When the tea leaves are transferred to the next-stage X-axis conveyor line 20, the subsequent conveyor line will "actively pull away" the tea leaves at a faster speed because the speed of the next stage is higher than that of the previous stage. At the moment of speed switching, the adjacent tea leaves will have a displacement difference due to the difference in inertia, and a stable gap will be formed instantly. After multiple accelerations by at least two stages of X-axis conveyor lines 20, the originally gathered tea leaves are gradually dispersed, and finally a "longitudinal queue" with a uniform longitudinal spacing is formed on the last stage X-axis conveyor line, which completely avoids multiple tea leaves overlapping and entering the subsequent turning stage.

[0024] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A multi-stage stepping transmission device for a tea tray arranging machine, characterized in that, include: Rack (10); A conveying assembly, mounted on the frame (10), is used to convey tea leaves. It includes at least two sets of X-axis conveying lines (20) arranged in a first direction and connected in sequence, and a Y-axis conveying line (30) arranged in a second direction perpendicular to the first direction. The discharge end of the X-axis conveying line (20) is connected to the feed end of the Y-axis conveying line (30). Among them, the conveying speed of at least two sets of X-axis conveyor lines (20) increases step by step along the conveying direction, and the ratio of the conveying speed of the Y-axis conveyor line (30) to the conveying speed of the last X-axis conveyor line (20) is N:1, where N ≥ 2, so that the tea leaves can pass through the discharge end of the Y-axis conveyor line in the form of single pieces.

2. The multi-stage stepping transmission device for the tea tray arrangement machine according to claim 1, characterized in that: The discharge end of the Y-axis conveyor line (30) is provided with a posture sorting component (40). The posture sorting component includes multiple spaced guide members, and the guide members form a sorting channel for adjusting the posture of the tea leaves.

3. The multi-stage stepping transmission device for the tea tray arrangement machine according to claim 1, characterized in that: One of the drive shafts of the X-axis conveyor lines (20) is connected to the drive shaft of the adjacent next-level X-axis conveyor line (20) via a transmission member, and the transmission member is configured to make the conveying speed of the adjacent next-level X-axis conveyor line (20) greater than that of the previous level X-axis conveyor line (20).

4. The multi-stage stepping transmission device for the tea tray arrangement machine according to claim 3, characterized in that: The transmission mechanism includes a drive wheel (22) on the drive shaft of the previous X-axis conveyor line (20) and a driven wheel (23) on the drive shaft of the next X-axis conveyor line (20), wherein the drive wheel (22) and the driven wheel (23) are meshed together.

5. The multi-stage stepping transmission device for the tea tray arrangement machine according to claim 1, characterized in that: A stopper (31) for stopping the tea leaves is provided at one end of the Y-axis conveyor line (30) and away from the X-axis conveyor line (20).

6. The multi-stage stepping transmission device for the tea tray arrangement machine according to claim 1, characterized in that: The value of N is 7, and the last stage of the X-axis conveyor line is made of non-woven fabric.

7. The multi-stage stepping transmission device for the tea tray arrangement machine according to claim 1, characterized in that: It also includes a cleaning component, which includes a fixed sleeve (21) located at one end of the drive shaft of the X-axis conveyor line (20). The fixed sleeve (21) is provided with a plurality of pneumatic units arranged circumferentially. The pneumatic units are connected to triggers that can reciprocate with the rotation of the drive shaft, and are used to periodically generate airflow during rotation. The X-axis conveyor line (20) is provided with an air blowing pipe (24) communicating with the pneumatic units below it. The air blowing pipe (24) is provided with a plurality of air jets facing the lower surface of the X-axis conveyor line (20).

8. The multi-stage stepping transmission device for the tea tray arrangement machine according to claim 7, characterized in that: The pneumatic unit includes a cylinder (25) and an air inlet pipe (210) and an air outlet pipe (29) connected on the cylinder and allowing airflow to flow in one direction. The triggering element includes a piston (26) in the cylinder (25), a piston rod (27) fixedly mounted on the piston (26), and multiple sets of push blocks fixedly mounted on the drive shaft. A spring for resetting is sleeved on the piston rod. The air outlet pipe is connected to the air blowing pipe.

9. A multi-stage stepping transmission method for a tea tray display machine, applied to the multi-stage stepping transmission device of the tea tray display machine according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Tea leaves are conveyed in a stepwise manner along the first direction through at least two sequentially connected X-axis conveyor lines, and the aggregated tea leaves are initially dispersed by gradually increasing conveying speed during the conveying process. S2: Transfer the tea leaves, which have been initially dispersed by the last stage X-axis conveyor line (20), to the Y-axis conveyor line 30; S3: Tea leaves are conveyed along the second direction at a speed Vy via the Y-axis conveyor line (30), wherein > .

Images