Automatic tea leaf stacking machine

Abstract

The present application relates to the technical field of tea processing equipment, and discloses an automatic tea stacking machine, which comprises a mechanical arm and a mounting plate, and further comprises a right-angle frame, a flexible sleeve, a roller, a push plate, a limiting press plate and a driving assembly. The right-angle frame, the flexible sleeve, the roller and the driving assembly are arranged, so that the bottom corner of the packaging box is in a suspended state during stacking. After the packaging box is moved to be attached to the stacked box, the flexible sleeve is driven by the driving assembly to move along the right-angle groove, the roller in the horizontal direction is gradually turned into the vertical section, the push plate is driven by the telescopic member to push the side surface of the packaging box, the packaging box is always attached to the adjacent box during the falling process, the stacking gap is effectively eliminated, the overall stability of the stack is improved, and the problem that the end box cannot be positioned due to the accumulation of the gap is avoided.

Description

Technical Field

[0001] This invention relates to the field of tea processing equipment technology, specifically to an automatic tea stacking machine. Background Technology

[0002] In the tea processing and production process, after the finished tea is packaged, it is usually first placed into sealed bags, then the bagged tea is placed into packaging boxes, and then the packaging boxes are sealed and stacked neatly to facilitate subsequent warehousing management and handling operations. At present, the stacking operation of packaging boxes is mostly completed by automated equipment. The common method is to use grippers installed at the end of a robotic arm to grasp the packaging boxes from the conveyor line or temporary storage station and transfer them to a pallet or designated stacking area, where they are stacked layer by layer and column by column according to a preset arrangement.

[0003] However, existing gripper-type stacking devices have significant limitations in practical use. Firstly, during stacking, in order for the grippers to smoothly hold the boxes to be stacked and push them to the target position adjacent to already stacked boxes, the gripper's claw must extend into the side area of ​​the already stacked boxes. This results in a gap of a certain thickness between the newly stacked box and the adjacent already stacked box when the gripper releases the box. This gap not only prevents a tight fit between layers of boxes and between boxes within the same layer, reducing the overall stability of the stack, making it prone to tilting or even collapsing under vibration or impact, but also, as the number of boxes stacked increases, the extra space created by the accumulation of multiple gaps significantly compresses the accommodating area of ​​the last few boxes, causing the last box to be unable to be stacked in the intended position, or even to fail to be placed at all, seriously affecting the continuity and accuracy of the stacking operation. Secondly, tea packaging boxes often vary greatly in size due to differences in product specifications, batches, or customer needs. Existing grippers typically have fixed gripping strokes and gripping surfaces or can only be adjusted within a small range, making it difficult to accommodate packaging boxes of various sizes. If different box types need to be adapted, it is often necessary to replace the grippers or make cumbersome manual adjustments, which reduces the flexibility and efficiency of the production line. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic tea stacking machine that can achieve tight stacking of packaging boxes and is compatible with different box sizes.

[0005] The objective of this invention can be achieved through the following technical solutions: An automatic tea stacking machine includes a robotic arm and a mounting plate, and the stacking machine further includes: A right-angle frame is provided, and a second driving component is installed on one side of the mounting plate. The output end of the second driving component passes through the mounting plate and is mounted on the right-angle frame. A flexible sleeve is provided in the right-angled frame, and a flexible sleeve is movably installed in the right-angled groove. Rollers, a plurality of rollers are rotatably mounted on the flexible sleeve; A push plate is provided, with a telescopic component installed on one side of the mounting plate. The push plate is installed at the output end of the telescopic component and is located within the right-angle frame. Limiting pressure plate: Two sets of limiting pressure plates are symmetrically installed on the right-angle frame along its diagonal direction, and one side of the two sets of limiting pressure plates is parallel to the two sides of the push plate; A drive assembly is installed inside the right-angle frame to drive the flexible sleeve to move along the right-angle groove.

[0006] As a further embodiment of the present invention: the driving assembly includes a driving component, a gear, a main gear plate, and a driven gear plate. A right-angled movable groove is provided inside the right-angled frame, and a gear is rotatably installed in the movable groove. A driving component is installed outside the right-angled frame to drive the gear to rotate. The main gear plate and the driven gear plate slide along the two sides of the right-angled movable groove, respectively. One end of the main gear plate is fixed to one end of the flexible sleeve. A connecting plate is connected to the driven gear plate, and the end of the connecting plate is fixed to the other end of the flexible sleeve. The main gear plate and the driven gear plate are perpendicular to each other and both mesh with the gear.

[0007] As a further aspect of the present invention: the mounting plate is provided with an arc-shaped hole, the push plate is provided with a connecting rod, the connecting rod passes through the arc-shaped hole, and the end of the connecting rod is slidably connected to the output end of the telescopic member. The mounting plate is also provided with an arc-shaped groove, and the telescopic member is provided with a guide plate that slides along the arc-shaped groove.

[0008] As a further embodiment of the present invention: two sets of side plates are symmetrically slidably installed on the push plate along the diagonal direction of the right-angle frame. The side plates are provided with ear plates. An elastic element is connected between the ear plates and the push plate. A protrusion is provided on the connecting rod. A guide block is symmetrically provided in the arc-shaped hole. The protrusion and the guide block are slidably engaged. The connecting rod and the output end of the telescopic element slide along the direction of the connecting rod axis and the connecting line of the protrusion.

[0009] As a further embodiment of the present invention: the limiting pressure plate is provided with an elastic element two, and the mounting plate is provided with an arc-shaped guide groove. The elastic element two slides along the guide groove, and the right-angle frame is fixedly connected to the outer surface of the elastic element two through a support plate.

[0010] As a further aspect of the present invention: positioning sensor assemblies are installed on the side of the push plate and the side of the limiting pressure plate.

[0011] As a further aspect of the present invention: a retaining sleeve is installed around the roller, and several retaining sleeves are in the same position on their respective corresponding rollers, and several balls are also provided around the roller.

[0012] As a further aspect of the present invention: the mounting plate is symmetrically provided with limiting plates for blocking the right-angle frame.

[0013] The beneficial effects of this invention are: (1) By setting up a right-angle frame, a flexible sleeve, a roller and a driving component, the bottom corner of the packaging box is in a suspended state when stacking. After the packaging box moves to fit with the stacked box, the driving component drives the flexible sleeve to move along the right-angle groove, so that the horizontal roller gradually turns into the vertical section. At the same time, the telescopic component drives the push plate to push the side of the packaging box, so that the packaging box always fits with the adjacent box during the placement process, effectively eliminating the stacking gap, improving the overall stability of the stack, and avoiding the problem of the end box not being able to be placed due to the accumulation of gaps.

[0014] (2) The present invention controls the flexible sleeve to move along the right-angle groove by driving components, thereby adjusting the number of rollers arranged in the horizontal direction, so that packaging boxes of different sizes can be stably supported and transported. It can be compatible with various box types without changing the grippers or manual adjustment, which significantly improves the flexibility level and operation efficiency of the production line.

[0015] (3) By setting up a push plate, side plate, connecting rod and guide block, when the push plate pushes the packaging box to move, the protrusion on the connecting rod slides along the guide block to make the connecting rod move obliquely, thereby driving the side plate that is not squeezed to apply lateral thrust to the packaging box. Combined with the front thrust of the push plate, the packaging box can be fitted in two directions at the same time, further ensuring the tightness of stacking.

[0016] (4) The present invention drives the right-angle frame to rotate and change direction through the second drive component. Combined with the multi-degree-of-freedom motion of the robotic arm, the stacking direction can be adaptively switched according to the stacking environment and space size, which improves the equipment's adaptability to different stacking layouts.

[0017] (5) The present invention uses a sensor assembly installed on the limiting pressure plate and the push plate to detect the alignment of the push plate and the limiting pressure plate in real time during the stacking process. Combined with the rebound force of the elastic element two, the limiting pressure plate remains in contact with the side of the packaging box when the robotic arm retracts, ensuring that the telescopic component accurately controls the position of the push plate, thereby improving the accuracy and reliability of the stacking positioning. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure on the mounting plate in this invention; Figure 3 This is a schematic diagram of the roller structure in this invention; Figure 4 This is a schematic diagram of the installation positions of the driving component 2 and the telescopic component in this invention; Figure 5 This is a schematic diagram of the driving component structure in this invention; Figure 6This is a schematic diagram of the arc-shaped hole structure in this invention; Figure 7 This is a schematic diagram of the push plate and side plate structure in this invention.

[0020] In the picture: 1. Robotic arm; 2. Mounting plate; 21. Limiting plate; 22. Guide groove; 23. Arc groove; 24. Arc hole; 25. Guide wedge; 3. Right angle frame; 31. Right angle groove; 32. Movable groove; 4. Flexible sleeve; 5. Roller; 51. Stop sleeve; 52. Ball bearing; 6. Push plate; 61. Side plate; 62. Elastic component one; 63. Ear plate; 64. Connecting rod; 65. Protrusion; 7. Limiting pressure plate; 71. Elastic component two; 72. Support plate; 8. Drive assembly; 81. Drive component one; 82. Gear; 83. Main gear plate; 84. Drive gear plate; 9. Drive component two; 10. Telescopic component; 101. Guide plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-7 As shown, an automatic tea stacking machine includes a robotic arm 1 and a mounting plate 2. The stacking machine also includes: A right-angle frame 3 is mounted on one side of the mounting plate 2, and a second driving component 9 is mounted on the right-angle frame 3. The output end of the second driving component 9 passes through the mounting plate 2 and is mounted on the right-angle frame 3. The flexible sleeve 4 and the right-angle frame 3 have a right-angle groove 31, and the flexible sleeve 4 is movably installed in the right-angle groove 31. Roller 5, several rollers 5 are rotatably mounted on the flexible sleeve 4; Push plate 6, a telescopic component 10 is installed on one side of mounting plate 2, push plate 6 is installed at the output end of telescopic component 10, and push plate 6 is located within the right angle frame 3; Limiting pressure plate 7, two sets of limiting pressure plates 7 are symmetrically installed on the right angle frame 3 along its diagonal direction, and one side of the two sets of limiting pressure plates 7 is parallel to the two sides of the push plate 6; The drive assembly 8 is a drive assembly 8 that is installed inside the right-angle frame 3 and moves along the right-angle groove 31 with the drive flexible sleeve 4.

[0023] In practical application, the tea packaging boxes on the conveyor line are transported onto several rollers 5, and the cross-shaped rectangular area formed by one corner of the bottom of the packaging box is suspended. Then, the robotic arm 1 drives the mounting plate 2 to move, so that the packaging box moves to the stacking area and one side of the packaging box is in contact with the packaging box connected to it. At the same time, the several rollers 5 are positioned above the packaging box below. During this process, the limiting pressure plate 7 abuts against the side of the stacked packaging box. At the end of the stacking, the flexible sleeve 4 is moved along the right-angle groove 31 by the driving component 8, so that the several rollers 5 in the horizontal direction gradually enter the vertical direction of the right-angle groove 31. The straight section causes several rollers 5 to gradually separate from the bottom of the packaging box, so that the bottom of the packaging box gradually contacts the top of the packaging box below. At the same time, the push plate 6 is driven by the telescopic component 10 to move towards the packaging box, thereby pushing the packaging box to move so that the side of the packaging box fits against the side of the packaging box in the direction of movement. Meanwhile, the robotic arm 1 drives the mounting plate 2 to retract, so that the packaging box falls into the designated stacking area. This effectively avoids gaps between packaging boxes and adjacent packaging boxes, ensures that adjacent packaging boxes fit together, improves the overall stability of the stacking, and effectively prevents the end box from not being stacked in the predetermined position. By driving the flexible sleeve 4 along one side of the right-angle groove 31 through the drive component 8, the number of horizontally arranged rollers 5 can be adjusted, thereby supporting packaging boxes of different sizes and adapting to the stacking of packaging boxes of different sizes and specifications, thus improving the flexibility and operational efficiency of the production line. Finally, the drive component 29 can drive the right-angle frame 3 to rotate, thereby changing the direction of the right-angle frame 3. This allows the stacking direction to be switched adaptively according to the stacking environment and space size. Combined with the degree of freedom of the robotic arm 1, the stacking effect can be ensured.

[0024] Furthermore, the drive assembly 8 includes a drive component 81, a gear 82, a main gear plate 83, and a driven gear plate 84. A right-angled movable groove 32 is provided inside the right-angle frame 3. The gear 82 is rotatably mounted in the movable groove 32. The drive component 81, which drives the gear 82 to rotate, is installed outside the right-angle frame 3. The main gear plate 83 and the driven gear plate 84 slide along the two sides of the right-angled movable groove 32 respectively. One end of the main gear plate 83 is fixed to one end of the flexible sleeve 4. A connecting plate is connected to the driven gear plate 84. The end of the connecting plate is fixed to the other end of the flexible sleeve 4. The main gear plate 83 and the driven gear plate 84 are perpendicular to each other and both mesh with the gear 82.

[0025] In practical application, when stacking packaging boxes, the drive unit 81 is activated to rotate the gear 82. The gear 82 drives the main gear plate 83 and the driven gear plate 84 to move. This allows the main gear plate 83 and the driven gear plate 84 to pull or push the two ends of the flexible sleeve 4 respectively when they move. This ensures that the flexible sleeve 4 will not deform due to the length of the pull when it moves along the right-angle groove 31, thereby ensuring the moving efficiency of the several horizontal rollers 5 and improving the stacking efficiency. At the same time, it ensures that the distance between the several horizontal rollers 5 is equal, thereby ensuring the stability of the packaging box support.

[0026] Furthermore, the mounting plate 2 has an arc-shaped hole 24, the push plate 6 has a connecting rod 64, the connecting rod 64 passes through the arc-shaped hole 24, and the end of the connecting rod 64 is slidably connected to the output end of the telescopic member 10. The mounting plate 2 also has an arc-shaped groove 23, and the telescopic member 10 has a guide plate 101 that slides along the arc-shaped groove 23.

[0027] Two sets of side plates 61 are symmetrically slidably installed on the push plate 6 along the diagonal direction of the right angle frame 3. The side plates 61 are provided with ear plates 63. An elastic element 62 is connected between the ear plates 63 and the push plate 6. The connecting rod 64 is provided with a protrusion 65. The arc-shaped hole 24 is symmetrically provided with guide blocks 25. The protrusion 65 and the guide blocks 25 are slidably engaged. The connecting rod 64 and the output end of the telescopic component 10 slide along the direction of the connection line between the axis of the connecting rod 64 and the protrusion 65.

[0028] In practical application, the arc-shaped hole 24 and arc-shaped groove 23 ensure that the telescopic component 10 can drive the push plate 6 to move normally when the right-angle frame 3 changes direction. When the packaging box is transferred to several rollers 5, the packaging box will squeeze the horizontal side plate 61, making the horizontal side plate 61 flush with the push plate 6. When the push plate 6 pushes the packaging box to move, the protrusion 65 on the connecting rod 64 will gradually approach the guide inclined block 25. When the protrusion 65 moves to the guide inclined block 25, the connecting rod 64 will make an upward movement. This allows the un-squeezed vertical side plate 61 to apply a lateral pushing force to the packaging box when the push plate 6 pushes the packaging box, thereby further ensuring that the packaging box fits with the adjacent packaging box. At the same time, the pushing action of the push plate 6 makes the packaging box fit with the side of the packaging box in its moving direction, thereby further effectively avoiding the gap between the packaging box and the adjacent packaging box.

[0029] Furthermore, the limiting pressure plate 7 is provided with an elastic element 71, and the mounting plate 2 is provided with an arc-shaped guide groove 22. The elastic element 71 slides along the guide groove 22, and the right-angle frame 3 is fixedly connected to the outer surface of the elastic element 71 through the support plate 72.

[0030] Position sensor assemblies are installed on the side of push plate 6 and the side of limit pressure plate 7.

[0031] In practical application, when the robotic arm 1 moves the mounting plate 2, the packaging box is first aligned with the stacking position. During the alignment process, one set of limiting pressure plates 7 will abut against the side of the stacked packaging box. As the packaging box continues to move towards the stacking area, the elastic element 71 is compressed. When the push plate 6 pushes the packaging box to move, when the push plate 6 and the limiting pressure plate 7 are flush, the positioning sensor components on both will receive a signal. This indicates that the packaging box has moved into position, that is, the side of the packaging box is in contact with the side of the packaging box in its moving direction. When the robotic arm 1 moves the mounting plate 2 back, due to the rebound force of the elastic element 71, the limiting pressure plate 7 is still in contact with the side of the packaging box. At the same time, through the positioning sensor components, the telescopic element 10 continues to extend, so that the position of the push plate 6 is always flush with the position of the limiting pressure plate 7 until the limiting pressure plate 7 separates from the side of the packaging box, and then the telescopic element 10 will drive the push plate 6 back to its original position.

[0032] like Figure 3 As shown, a retaining sleeve 51 is installed around the roller 5. Several retaining sleeves 51 are in the same position on their respective rollers 5. Several balls 52 are also provided around the roller 5.

[0033] In practical application, the retaining sleeve 51 can be fixed to the outside of the roller 5 by bolts or other fixing components. This allows the position of the retaining sleeve 51 to be adjusted so that when the packaging box moves onto the rollers 5, the side of the packaging box abuts against the retaining sleeves 51, ensuring that the cross rectangular area formed by a corner of the bottom of the packaging box is in a suspended state. This shortens the retraction path of the mounting plate 2, thereby improving the stacking efficiency, and also prevents the horizontal rollers 5 from pushing the stacked packaging box when the mounting plate 2 moves. By setting several ball bearings 52, the efficiency of the horizontal roller 5 moving to the vertical direction can be improved on the one hand, and the efficiency of the mounting plate 2 retraction can be improved on the other hand, thereby improving the overall stacking efficiency.

[0034] like Figure 1 and Figure 2 As shown, the mounting plate 2 is symmetrically provided with limiting plates 21 for blocking the right-angle frame 3.

[0035] In practical applications, when switching the direction of the right-angle frame 3, the limiting plate 21 supports and limits the horizontal section of the right-angle frame 3 to ensure that the right-angle frame 3 switches to the correct direction. It also ensures the stability of each mechanism during stacking, thereby improving stacking efficiency while ensuring smooth stacking.

[0036] Working principle: When tea packaging boxes need to be stacked, the conveyor line transports the boxes to the material handling position of the stacking machine. The robotic arm 1 moves the mounting plate 2 to the location of the packaging box, so that one corner of the bottom of the packaging box enters the range of the right-angle frame 3 and is supported on several horizontally arranged rollers 5. At the same time, the side of the packaging box abuts against the retaining sleeve 51 on the outer perimeter of the roller 5, so that the cross-rectangular area formed by one corner of the bottom of the packaging box is in a suspended state. Then, the robotic arm 1 moves the mounting plate 2 to transfer the packaging box to the pallet or the designated stacking area, and aligns the side of the packaging box to be attached with the side of the already stacked packaging box. During the movement, a set of limiting pressure plates 7 on the right-angle frame 3 abuts against the side of the already stacked box, and the elastic element 2 71 is compressed.

[0037] Once the packaging box reaches the stacking position, the drive unit 81 is activated, driving the gear 82 to rotate. The gear 82 drives the main gear plate 83 and the driven gear plate 84, which mesh with it, to slide along both sides of the movable groove 32. The main gear plate 83 and the driven gear plate 84 together pull the flexible sleeve 4 to move along the right-angle groove 31, causing the horizontally arranged rollers 5 to gradually rotate into the vertical section of the right-angle groove 31. This causes the rollers 5 to gradually separate from the bottom of the packaging box, and the bottom of the packaging box to gradually contact the top of the already stacked boxes below. At the same time, the telescopic component 10 drives the push plate 6 to move towards the packaging box. The push plate 6 pushes the side of the packaging box, making the packaging box fit tightly against the side of the already stacked boxes in its moving direction. During the movement of the push plate 6, the protrusion 65 on the connecting rod 64 slides along the guide block 25 in the arc-shaped hole 24, causing the connecting rod 64 to move obliquely. This, in turn, drives the side plate 61, which is not squeezed by the packaging box, to apply a lateral thrust to the packaging box, achieving synchronous fitting of the packaging box in two directions. When the positioning sensors on the side of the push plate 6 and the side of the limiting plate 7 detect that they are aligned, it indicates that the packaging box has been moved into place. Subsequently, the robotic arm 1 drives the mounting plate 2 to retract. During this process, the rebound force of the elastic element 71 keeps the limiting plate 7 in contact with the side of the packaging box, and the telescopic element 10 continues to extend to keep the push plate 6 aligned with the limiting plate 7 until the limiting plate 7 is completely separated from the side of the packaging box. Then, the telescopic element 10 drives the push plate 6 to retract to the initial position, completing a single stacking operation.

[0038] When the stacking direction needs to be changed, the second drive component 9 is activated. The output end of the second drive component 9 drives the right-angle frame 3 to rotate until the horizontal section of the right-angle frame 3 abuts against the limiting plate 21 on the mounting plate 2, realizing a 90-degree reversal of the right-angle frame 3. This, combined with the degree of freedom of the robotic arm 1, completes the stacking in different directions. When it is necessary to stack packaging boxes of different sizes, the position of the flexible sleeve 4 in the right-angle groove 31 is adjusted by the drive component 8, changing the number of horizontal rollers 5, so that packaging boxes of different sizes can be stably supported and transported, thus completing the entire stacking process.

Claims

1. An automatic tea stacking machine, comprising a robotic arm (1) and a mounting plate (2), characterized in that, The staging machine also includes: A right-angle frame (3) is provided. A second driving component (9) is installed on one side of the mounting plate (2). The output end of the second driving component (9) passes through the mounting plate (2) and is mounted on the right-angle frame (3). The flexible sleeve (4) has a right angle groove (31) on the right angle frame (3) and the flexible sleeve (4) is movably installed in the right angle groove (31). Roller (5), several rollers (5) are rotatably mounted on the flexible sleeve (4); Push plate (6), telescopic component (10) is installed on one side of the mounting plate (2), push plate (6) is installed at the output end of telescopic component (10), and push plate (6) is located within the right angle frame (3); Limiting pressure plate (7), two sets of limiting pressure plates (7) are symmetrically installed on the right angle frame (3) along its diagonal direction, and one side of the two sets of limiting pressure plates (7) is parallel to the two sides of the push plate (6); The drive assembly (8) is installed inside the right-angle frame (3) to drive the flexible sleeve (4) to move along the right-angle groove (31).

2. The automatic tea stacking machine according to claim 1, characterized in that, The drive assembly (8) includes a drive component (81), a gear (82), a main gear plate (83), and a driven gear plate (84). A right-angled movable groove (32) is provided in the right-angle frame (3). The gear (82) is rotatably installed in the movable groove (32). The drive component (81) that drives the gear (82) to rotate is installed outside the right-angle frame (3). The main gear plate (83) and the driven gear plate (84) slide along the two sides of the right-angled movable groove (32). One end of the main gear plate (83) is fixed to one end of the flexible sleeve (4). A connecting plate is connected to the driven gear plate (84). The end of the connecting plate is fixed to the other end of the flexible sleeve (4). The main gear plate (83) and the driven gear plate (84) are perpendicular to each other and both mesh with the gear (82).

3. The automatic tea stacking machine according to claim 2, characterized in that, The mounting plate (2) has an arc-shaped hole (24), and the push plate (6) has a connecting rod (64). The connecting rod (64) passes through the arc-shaped hole (24), and the end of the connecting rod (64) is slidably connected to the output end of the telescopic component (10). The mounting plate (2) also has an arc-shaped groove (23), and the telescopic component (10) has a guide plate (101) that slides along the arc-shaped groove (23).

4. The automatic tea stacking machine according to claim 3, characterized in that, Two sets of side plates (61) are symmetrically slidably installed on the push plate (6) along the diagonal direction of the right angle frame (3). The side plates (61) are provided with ear plates (63). An elastic element (62) is connected between the ear plates (63) and the push plate (6). The connecting rod (64) is provided with a protrusion (65). The arc-shaped hole (24) is symmetrically provided with guide blocks (25). The protrusion (65) and the guide blocks (25) are slidably engaged. The connecting rod (64) and the output end of the telescopic component (10) slide along the direction of the connecting rod (64) axis and the connecting line of the protrusion (65).

5. The automatic tea stacking machine according to claim 4, characterized in that, The limiting pressure plate (7) is provided with an elastic element two (71), and the mounting plate (2) is provided with an arc-shaped guide groove (22). The elastic element two (71) slides along the guide groove (22), and the right angle frame (3) is fixedly connected to the outer surface of the elastic element two (71) through the support plate (72).

6. The automatic tea stacking machine according to claim 5, characterized in that, Position sensor assemblies are installed on the side of the push plate (6) and the side of the limiting pressure plate (7).

7. The automatic tea stacking machine according to claim 1, characterized in that, The roller (5) is equipped with a retainer (51) on its periphery. Several retainers (51) are in the same position on their respective rollers (5). Several balls (52) are also provided on the periphery of the roller (5).

8. The automatic tea stacking machine according to claim 1, characterized in that, The mounting plate (2) is symmetrically provided with limiting plates (21) for blocking the right angle frame (3).

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