Tea bag conveying buffer device

Abstract

The utility model relates to the technical field of tea packaging equipment discloses a tea bag conveying buffer device, including the buffer channel of oblique shape, can guide the inner package tea bag to slide along the buffer channel steadily, this process effectively reduced the initial falling speed of inner package tea bag, laid the foundation for subsequent buffer processing. When the inner package tea bag slides out from the buffer channel, will contact with the arc plate, in the moment of contact, the movement direction of inner package tea bag is not only changed to slide along the arc surface to the bottom, and the arc plate will absorb the kinetic energy of inner package tea bag through slight shaking of itself, so that inner package tea bag eliminates the impact force completely after passing through the arc plate, finally falls to the workstation steadily with nearly zero impact.

Description

Technical Field

[0001] This utility model relates to the technical field of tea packaging equipment, specifically to a tea bag conveying buffer device. Background Technology

[0002] In the packaging process of loose tea, two packaging operations are carried out sequentially: inner packaging and outer packaging. The inner packaging bags use matte OPP film, while the outer packaging uses cardboard boxes. Specifically, firstly, an automatic bag-packing machine accurately weighs the tea leaves, fills them into bags, heat-seals them, and prints the production date, completing the inner packaging process. Then, the inner-packaged tea bags are conveyed to the outer packaging area via a chain conveyor for outer packaging. Finally, after passing quality inspection, the finished boxes are stacked centrally by a palletizing system and transferred to the warehousing system for storage.

[0003] In the aforementioned loose tea packaging production process, when the inner tea bags fall from the unloading end of the chain conveyor to the outer packaging worktable, due to the height difference between the unloading end of the chain conveyor and the outer packaging worktable, the inner tea bags fall in free fall and are subjected to a significant impact force upon contact with the worktable surface. Although the inner packaging bag uses OPP matte film, which has a certain degree of toughness, its thinness results in poor tensile and bending resistance. Upon impact, the inner packaging bag is prone to tearing, leading to localized damage and cracks. This damage causes the inner packaging bag to lose its seal, exposing the tea leaves directly to the air, causing them to absorb moisture and deteriorate in quality, severely affecting the stability of product quality.

[0004] Therefore, there is an urgent need for a cushioning device that allows the inner packaging tea bags to fall onto the worktable at a gentle speed, ensuring that the inner packaging tea bags arrive at the worktable in a stable and controllable manner, fundamentally eliminating the risk of inner packaging bag breakage caused by impact, and ensuring the integrity of the tea packaging and its long-term storage quality. Utility Model Content

[0005] The present invention aims to provide a tea bag conveying buffer device, which can avoid the problem of packaging damage caused by excessive impact to the inner packaging bag of the tea bag, thereby eliminating the risk of inner packaging bag breakage caused by impact and ensuring the integrity of tea packaging and long-term storage quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] 1) A tea bag conveying buffer device, comprising a support frame, a chain conveyor for conveying inner packaged tea bags on the support frame, a buffer channel for receiving inner packaged tea bags below the unloading end of the chain conveyor, the buffer channel being inclined, a channel outlet being provided at the end of the buffer channel away from the chain conveyor, an arc plate with a semi-circular longitudinal section being provided in the channel outlet, a discharge space for the inner packaged tea bags to pass through being provided between the arc plate and the channel outlet, the inner curved surface of the arc plate facing the discharge space.

[0008] In this invention, the inner tea bag is conveyed to the unloading end by a chain conveyor and then falls into a buffer channel. Because the buffer channel is inclined, the inner tea bag slides downwards along the inclined surface of the channel under its own weight and the guidance of the channel's slope. During this process, the inclined channel structure effectively disperses the gravitational potential energy of the falling tea bag, significantly reducing its downward speed compared to free fall, thus initially achieving buffering and preventing violent impacts caused by excessive speed.

[0009] As the inner tea bag slides down the buffer channel to the exit, its inertia propels it forward until it comes into contact with the inner side of the curved plate at the exit. Because the curved plate has a semi-circular cross-section and its inner curved surface faces the exit, it forms an inwardly concave arc-shaped contact surface. Therefore, when the inner tea bag contacts the inner side of the curved plate, the plate exerts a reverse resisting force, forcing the tea bag to change its original downward-sloping direction of movement.

[0010] Guided by the curved plate, the movement trajectory of the inner tea bag changes from sliding diagonally downwards to sliding along the curved surface of the inner side of the plate towards the bottom. Simultaneously, the curved plate experiences slight shaking due to the impact of the tea bag, absorbing the kinetic energy carried by the tea bag and further weakening its kinetic energy. Ultimately, after being guided and absorbing energy by the curved plate, the tea bag slides smoothly down the inner side of the plate, achieving thorough cushioning and effectively preventing damage to the packaging or breakage of the seal due to impact.

[0011] 2) A tea bag conveying buffer device according to 1), wherein:

[0012] The buffer channel includes a rectangular, inclined base plate located below the unloading end of the chain conveyor, with vertically arranged side plates on both sides of the base plate.

[0013] In this invention, the base plate is installed below the unloading end of the chain conveyor, directly receiving the inner tea bags falling from the chain conveyor. The base plate is inclined, and the inner tea bags falling onto the base plate slide downwards along the inclined surface of the base plate under their own weight and guidance, effectively slowing down the initial falling speed of the inner tea bags and preventing them from directly impacting the worktable and causing damage.

[0014] The side plates vertically arranged on both sides of the base plate serve to limit and protect the inner tea bags from shifting to the sides or falling off due to inertia or collision during the descent, thus ensuring the continuity and safety of the conveying process and reducing product loss and production interruption caused by the inner tea bags falling off.

[0015] 3) A tea bag conveying buffer device according to 2), wherein:

[0016] The base plate is equipped with a blocking bar to block the inner tea bag packaging, and the axis of the blocking bar is perpendicular to the central axis of the base plate.

[0017] In this invention, when the inner tea bag slides down the base plate, it comes into contact with the blocking bar. The blocking bar obstructs the inner tea bag, forcing it to pause temporarily or significantly reduce its sliding speed, thereby further consuming the kinetic energy of the inner tea bag and weakening its impact force. The perpendicular alignment with the center axis of the base plate ensures that the blocking effect of the blocking bar evenly covers the entire conveyor width, effectively ensuring contact with the blocking bar regardless of the inner tea bag's left or right position on the base plate.

[0018] 4) A tea bag conveying buffer device according to 2), wherein:

[0019] A support rod is provided between the ends of the two side plates away from the chain conveyor. The two ends of the support rod are fixedly connected to the corresponding side plates. The upper end of the arc plate is fixedly connected to the side of the support rod so that the inner curved surface of the arc plate faces the discharge space.

[0020] In this invention, the support rod is located at the end of the two side plates away from the chain conveyor. The two ends of the support rod are fixedly connected to the corresponding side plates, so that the support rod and the two side plates form a stable integral structure, providing a reliable support foundation for the installation of the arc plate.

[0021] One end of the curved plate is fixedly connected to the support rod, ensuring that the curved plate is stably positioned at the preset location at the channel exit. This guarantees that the inner tea bag accurately contacts the inner side of the curved plate upon reaching the exit. When the inner tea bag contacts the curved plate, the plate utilizes the stable support force transmitted from the support rod to better leverage its curved structure. The curved plate absorbs the energy of the inner tea bag through shaking and guides the tea bag to change its direction of movement, effectively cushioning the tea bag while preventing the cushioning effect from being compromised due to its own instability. This ensures the stable operation of the entire cushioning device.

[0022] 5) A tea bag conveying buffer device according to 1), wherein:

[0023] The chain conveyor includes a chain belt for carrying and conveying inner packaged tea bags. Several partition plates are evenly distributed on the chain belt, dividing the upper surface of the chain belt into several independent sections for placing the inner packaged tea bags.

[0024] In this invention, the chain conveyor belt serves as the basic component for carrying and transporting the inner packaged tea bags. Through its own cyclic operation, it smoothly transports the inner packaged tea bags from the upstream process to the unloading end, providing power and support for the entire conveying process and ensuring that the inner packaged tea bags can enter the subsequent buffering stage in an orderly manner.

[0025] Several evenly distributed partitions on the chain conveyor divide the upper surface of the chain conveyor into several independent sections, effectively controlling the number of tea bags that can be contained in each section. When the tea bags are conveyed to the unloading end, since each section can only hold a limited number of tea bags, the number of tea bags unloaded each time can be effectively controlled. This avoids the problem of the buffer device being overloaded due to a large number of tea bags falling at the same time, and prevents the tea bags from colliding and squeezing each other due to an excessive number during the fall, thus significantly reducing the risk of packaging damage and ensuring the overall quality of the product.

[0026] 6) A tea bag conveying buffer device according to 5), wherein:

[0027] Both sides of the chain belt are provided with several vertically arranged baffles. The baffles are in the shape of inverted isosceles trapezoids, and both sides of the baffles extend towards the adjacent baffles so that the extended parts of the adjacent baffles overlap each other.

[0028] In this invention, several vertically arranged baffles are provided on both sides of the chain belt, mainly serving to laterally limit the movement of the inner tea bags. These baffles extend upwards from both sides of the chain belt, effectively blocking the inner tea bags and preventing them from slipping off the sides of the chain belt due to inertia, vibration, or other external forces during operation. This further consolidates the stability of the inner tea bags on the chain belt, ensuring that they remain within the load-bearing range of the chain belt at all times.

[0029] The adjacent baffles employ an overlapping design, effectively eliminating any gaps between them and creating a continuous protective surface. This ensures that the inner tea bags will not leak out from any gap. When the conveyor belt reaches a turning point, the overlapping baffles move in a coordinated manner with the chain belt, maintaining a complete and continuous protective structure. This provides all-around lateral protection for the inner tea bags throughout the entire conveying process, preventing them from falling or being damaged due to lateral displacement. This ensures that each inner tea bag enters the subsequent packaging process intact and orderly, significantly improving the reliability of the production line and the product qualification rate.

[0030] Compared with the prior art, this utility model also has the following technical effects:

[0031] In this invention, the buffer channel is inclined, guiding the inner tea bag to slide smoothly down the channel. This effectively reduces the initial falling speed of the tea bag, laying the foundation for subsequent cushioning. After sliding out of the buffer channel, the tea bag contacts the curved plate. At the moment of contact, the tea bag's direction of motion is changed to slide along the curved surface towards the bottom. Furthermore, the curved plate absorbs the tea bag's kinetic energy through its slight swaying, completely eliminating the impact force after passing through the curved plate, and finally landing smoothly on the worktable with almost zero impact.

[0032] Compared with the prior art, this utility model adopts a combination structure of inclined buffer channel and arc plate. This structure can transform the impact force generated by the vertical drop of the inner packaging tea bag into a controllable sliding deceleration process. Through step-by-step buffering and gradual energy dissipation, it effectively avoids the problem of packaging bag damage or seal cracking caused by impact, and improves the safety and integrity of the inner packaging tea bag during transportation. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a tea bag conveying buffer device according to the present invention.

[0034] Figure 2 This is a schematic diagram of the chain plate belt in a tea bag conveying buffer device according to the present invention. Detailed Implementation

[0035] The following detailed description illustrates the specific implementation method:

[0036] The reference numerals in the accompanying drawings include: bracket 1, channel outlet 2, arc plate 3, base plate 4, side plate 5, blocking rod 6, support rod 7, partition plate 8, chain conveyor 9, baffle 10, and chain conveyor 11.

[0037] See the example. Figure 1 As shown, this embodiment of a tea bag conveying buffer device includes a support 1, on which a chain conveyor 11 is installed. This embodiment uses the Delong Machinery DL1460 chain conveyor 11. As a mature industrial standard product, the chain conveyor 11 uses modular chain plate combination to form a high-strength load-bearing plane, and is equipped with an integrated drive system of motor and reducer to achieve precise power transmission. The unique plate conveying surface of the chain conveyor 11 has the advantages of high surface flatness and low friction coefficient, which can ensure a smooth transition without vibration during material transmission. It is widely applicable to the continuous conveying operation of various regular packaging parts, metal cans and other rigid materials.

[0038] See Figure 2 As shown, the chain conveyor 11 includes a chain belt 9. Several baffles 10 are fixedly installed on both sides of the chain belt 9 by bolts and nuts. The baffles 10 are in the shape of an inverted isosceles trapezoid. Both sides of the baffles 10 extend towards the adjacent baffles 10, so that the extended parts of the adjacent baffles 10 overlap each other. Several partition plates 8 are evenly distributed on the chain belt 9. The bottom of the partition plates 8 is fixedly connected to the upper surface of the chain belt 9 by bolts and nuts.

[0039] The buffer channel is located below the unloading end of the chain conveyor 11. The buffer channel includes an inclined base plate 4, which is fixedly connected to the bracket 1 by bolts and nuts. A support rod 7 is fixedly connected to the base plate 4 by bolts and nuts, and the axis of the support rod 7 is perpendicular to the central axis of the base plate 4. Side plates 5 extending upward are fixedly connected to both sides of the base plate 4 by bolts and nuts. The support rod 7 is installed between the two side plates 5, and both ends of the support rod 7 are fixedly connected to the corresponding side plates 5 by bolts and nuts. The support rod 7 is located at the end of the two side plates 5 away from the chain conveyor 11. The side of the support rod 7 is welded to the upper end of the arc plate 3. The longitudinal section of the arc plate 3 is semi-circular. There is a discharge space between the arc plate 3 and the channel outlet 2 for the inner packaged tea bags to pass through. The inner curved surface of the arc plate 3 faces the discharge space.

[0040] The specific implementation process is as follows:

[0041] The inner packaging tea bags, after being inner packaged, are conveyed by the chain conveyor 11. When the inner packaging tea bags are conveyed to the unloading end of the chain conveyor 11, they are unloaded onto the bottom plate 4. Since the bottom plate 4 is inclined, the inner packaging tea bags slide downward along the inclined surface of the bottom plate 4 under their own weight and the guidance of the inclined surface of the bottom plate 4.

[0042] As the inner tea bag slides down the base plate 4 to its end, inertia causes it to continue moving forward and come into contact with the inner side of the arc plate 3. The arc plate 3 then blocks the inner tea bag, changing its trajectory from sliding diagonally downwards to sliding along the arc surface of the inner side of the arc plate 3 towards the bottom. Simultaneously, the arc plate 3 will sway slightly due to the impact of the inner tea bag. Finally, the inner tea bag slides smoothly down the inner side of the arc plate 3, thus cushioning the inner tea bag.

[0043] In this embodiment, the buffer channel is inclined, which guides the inner tea bag to slide smoothly down the buffer channel. This process effectively reduces the initial falling speed of the inner tea bag, laying the foundation for subsequent buffering. When the inner tea bag slides out of the buffer channel, it will come into contact with the curved plate 3. At the moment of contact, the direction of movement of the inner tea bag is not only changed to slide down the curved surface to the bottom, but the curved plate 3 will also absorb the kinetic energy of the inner tea bag through its own slight shaking. This allows the inner tea bag to completely eliminate the impact force after passing through the curved plate 3, and finally fall smoothly onto the worktable with almost zero impact.

[0044] Compared with the prior art, this embodiment adopts a combination structure of inclined buffer channel and arc plate 3. This structure can transform the impact force generated by the vertical drop of the inner packaging tea bag into a controllable sliding deceleration process. Through step-by-step buffering and gradual energy dissipation, it effectively avoids the problem of packaging bag damage or seal cracking caused by impact, and improves the safety and integrity of the inner packaging tea bag during transportation.

[0045] The above are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tea bag conveying buffer device, characterized by, The device includes a support frame, on which a chain conveyor for conveying inner packaged tea bags is mounted. Below the discharge end of the chain conveyor, there is a buffer channel for receiving the inner packaged tea bags. The buffer channel is inclined, and at the end of the buffer channel away from the chain conveyor, there is a channel outlet. Inside the channel outlet, there is an arc-shaped plate with a semi-circular longitudinal section. Between the arc-shaped plate and the channel outlet, there is a discharge space for the inner packaged tea bags to pass through. The inner curved surface of the arc-shaped plate faces the discharge space.

2. A tea bag delivery cushioning device according to claim 1, wherein: The buffer channel includes a rectangular and inclined base plate, which is located below the unloading end of the chain conveyor. Both sides of the base plate are provided with vertically arranged side plates.

3. A tea bag delivery cushioning device according to claim 2, wherein: The base plate is provided with a blocking rod for blocking the inner packaging tea bags, and the axis of the blocking rod is perpendicular to the central axis of the base plate.

4. A tea bag delivery cushioning device according to claim 2, wherein: A support rod is provided between the ends of the two side plates away from the chain conveyor. The two ends of the support rod are fixedly connected to the corresponding side plates respectively. The upper end of the arc plate is fixedly connected to the side of the support rod so that the inner curved surface of the arc plate faces the discharge space.

5. A tea bag delivery cushioning device according to claim 1, wherein: The chain conveyor includes a chain belt for carrying and conveying inner packaged tea bags. Several partition plates are evenly distributed on the chain belt, and the partition plates divide the upper surface of the chain belt into several independent sections for placing the inner packaged tea bags.

6. A tea bag delivery cushioning device according to claim 5, wherein: Both sides of the chain belt are provided with several vertically arranged baffles. The baffles are in the shape of inverted isosceles trapezoids, and both sides of the baffles extend towards the adjacent baffles so that the extended parts of the adjacent baffles overlap each other.

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