Bag poking and opening mechanism and tea packaging machine applying same

Abstract

The utility model relates to the field of tea packaging equipment, and discloses a bag poking and opening mechanism and a tea packaging machine applying the same, the bag poking and opening mechanism comprises a support, a hopper, a hopper driving module, a bag opening plate, a bag opening driving module, a bag poking piece and a bag poking driving module; the hopper driving module is arranged on the bracket, is in transmission connection with the hopper and is used for driving the hopper to lift; the two bag opening plates are symmetrically arranged and are rotationally connected to the two sides of the bottom of the hopper, the bag opening driving module is arranged at the output end of the hopper driving module and is in transmission connection with the two bag opening plates, and the bag opening driving module is used for driving the two bag opening plates to rotate oppositely or oppositely; the bag poking piece is located between the two bag opening plates, the bag poking driving module is arranged on the support and is in transmission connection with the bag poking piece, and the bag poking driving module is used for driving the bag poking piece to do lifting motion. The bag poking and opening mechanism and the tea packaging machine applying the same can solve the problem of how to open the whole tea bag.

Description

Technical Field

[0001] This utility model relates to the field of tea packaging equipment, specifically to a bag-popping and bag-supporting mechanism and a tea packaging machine using the mechanism. Background Technology

[0002] Currently, most tea bags on the market adopt an M-shaped design. While this design facilitates sealing to some extent, it reveals many inconveniences in actual use. Due to its structural characteristics, the M-shaped bag is not easy to fully open, leading to problems such as leakage and spillage when filling with tea. This not only affects packaging efficiency but also increases cleaning costs. To address this issue, many manufacturers have to rely on manually squeezing the tea bags to open them and smoothly fill them with tea. However, this manual operation method is not only inefficient and unable to meet the needs of large-scale, rapid production, but it also increases labor costs, which is detrimental to the long-term development of enterprises.

[0003] To overcome the limitations of manual operation, the industry has begun exploring the use of automated bag-opening mechanisms to replace manual labor in recent years. These automated mechanisms, through mechanical module design, automatically open the mouth of the tea bag, thus greatly improving production efficiency. However, some shortcomings still exist in practical applications. Specifically, while these automated mechanisms can effectively open the bag mouth, their effect on the overall opening of the tea bag, especially the bottom, is limited. During the tea pouring process, because the bottom is not fully open, tea spillage is still a common problem.

[0004] In view of the above problems, it is particularly important to develop a bag-opening mechanism that can fully open the entire tea bag and a tea packaging machine that uses this mechanism. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a bag-opening and bag-supporting mechanism and a tea packaging machine using the mechanism, which can at least solve the technical problem of how to open the entire tea bag.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bag-pouring and bag-supporting mechanism, including a bracket, and further comprising:

[0009] The hopper and the hopper drive module are mounted on the bracket and connected to the hopper transmission. The hopper drive module is used to drive the lifting and lowering movement of the hopper.

[0010] The bag support plate and the bag support drive module are provided. Two bag support plates are symmetrically arranged and rotatably connected to the bottom sides of the hopper. The bag support drive module is located on the output end of the hopper drive module and is connected to the two bag support plates in a transmission manner. The bag support drive module is used to drive the two bag support plates to rotate in opposite directions.

[0011] The bag-poke component and the bag-poke drive module are located between two bag-supporting plates. The bag-poke drive module is mounted on the bracket and is connected to the bag-poke component for transmission. The bag-poke drive module is used to drive the bag-poke component to move up and down.

[0012] Further, the aforementioned bag support plate has a U-shaped cross-section, and the two bag support plates form a closed loop structure. The closed loop structure is connected to the hopper. The bottom end of the bag support plate is provided with an insertion part for inserting tea bags. The cross-section of the insertion part is straight.

[0013] Further configuration: The aforementioned bag-supporting drive module includes:

[0014] Two sliders and two swing arms; a slide rail is provided on the output end of the hopper drive module; the slide rail extends laterally; both sliders are slidably connected to the slide rail; one end of each swing arm is rotatably connected to the two sliders; and the other end is fixedly connected to the two bag support plates.

[0015] The bidirectional drive assembly is located at the output end of the hopper drive module. The output end of the bidirectional drive assembly is connected to two sliders. The bidirectional drive assembly is used to drive the two sliders to slide in opposite directions or away from each other along the slide rail. The two sliders drive the two bag support plates to rotate in opposite directions or towards each other through two swing rods.

[0016] Further configuration: the aforementioned bidirectional drive assembly includes a first drive member, a gear, and two racks. The first drive member is located at the output end of the hopper drive module and is connected to the gear. The two racks are arranged opposite to each other on both sides of the gear and mesh with the gear. The two racks are also fixedly connected to two sliders respectively.

[0017] The first driving component is used to drive the gear to rotate, and the gear drives two sliders to slide in opposite directions or away from each other along the slide rail through two racks.

[0018] Further configuration includes, as described above, both the hopper drive module and the bag-pumping drive module, comprising:

[0019] The slide and bracket include a guide rail extending vertically. The slides of the hopper drive module and the bag-puffing drive module are slidably connected to the guide rail. The slide of the hopper drive module is connected to the hopper and the bag-puffing drive module. The slide of the bag-puffing drive module is connected to the bag-puffing component and is located above the slide of the hopper drive module.

[0020] The second drive unit, the timing belt, and the pulleys are provided. There are at least two pulleys arranged along the length of the guide rail. The timing belt is located on one side of the guide rail and is connected to the pulleys for transmission. The timing belt is fixed to the slide block. The second drive unit is located on the bracket. The output end of the second drive unit is connected to one of the pulleys. The second drive unit is used to drive the pulley to rotate. The pulley drives the slide block to slide along the guide rail through the timing belt.

[0021] This utility model also provides a tea packaging machine, including a frame, a bag receiving mechanism, and the aforementioned bag pushing and supporting mechanism. The support is fixed on the frame, and the bag receiving mechanism is located on the frame and below the bag pushing and supporting mechanism. The bag receiving mechanism is used to receive and limit the tea bags.

[0022] Further configuration: The aforementioned bag receiving mechanism includes a first limiting frame, a second limiting frame, and a bag receiving drive assembly. The bag receiving drive assembly is mounted on the frame, and its output end is connected to the first and second limiting frames. The bag receiving drive assembly is used to drive the first and second limiting frames to move towards or away from each other to form a U-shaped groove for accommodating and limiting the tea bags, or to open the U-shaped groove, wherein the U-shaped groove is located directly below the hopper.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the bag-pouring and bag-supporting mechanism and the tea packaging machine using the present invention have the following beneficial effects:

[0025] When using the bag-pumping and bag-opening mechanism of this tea packaging machine, firstly, the hopper drive module drives the hopper, two bag-opening plates, and the bag-opening drive module to descend together, inserting the two bag-opening plates downwards into the bottom of the tea bag from the bag opening. At this time, the initial positions of the two bag-opening plates overlap each other, so that the bag-opening plates can be easily inserted downwards into the bag opening. Then, the bag-opening drive module drives the two bag-opening plates to rotate in opposite directions, opening them outwards, thus opening the entire tea bag and quickly forming a flat, three-dimensional shape. Next, the bag-pumping drive module drives the bag-pumping component to descend between the two bag-opening plates and insert it into the bottom of the tea bag, further opening the entire tea bag. Finally, the tea is poured into the hopper, and the tea in the hopper flows directly into the bottom of the tea bag along the bag-opening plates and the bag-pumping component. After the tea is bagged, the bag-pumping drive module drives the bag-pumping component to rise and move out of the tea bag to return to its original position. Then, the bag-opening drive module drives the two bag-opening plates to rotate in opposite directions, while the hopper drive module drives the hopper and the bag-opening drive module to rise together, so that the two bag-opening plates move out of the tea bag and return to their original positions. As can be seen, the bag-opening mechanism, through the cooperation of the bag-opening plate and the bag-opening drive module, can open up the entire tea bag, allowing the flat tea bag to quickly form a three-dimensional shape. Combined with the bag-opening component and the bag-opening drive module, it can further open up the entire tea bag, ensuring that the tea bag remains fully open during the filling process, thereby effectively preventing the leakage and spillage of tea. Attached Figure Description

[0026] Figure 1 This is a perspective view of the bag-feeding and bag-supporting mechanism and the tea packaging machine using the mechanism in the embodiment;

[0027] Figure 2 This is a perspective view of the bag-feeding and bag-supporting mechanism and the bag-receiving mechanism in the embodiment;

[0028] Figure 3 This is a perspective view of the bag-poke and bag-supporting mechanism in the embodiment;

[0029] Figure 4 This is a schematic diagram of the structure of the hopper drive module, the bag support plate, and the bag support drive module in the embodiment;

[0030] Figure 5 This is a perspective view of the bag-receiving mechanism in the embodiment.

[0031] Icon labels:

[0032] 1. Bag-pumping and bag-supporting mechanism; 11. Bracket; 111. Guide rail; 12. Hopper; 13. Hopper drive module; 131. Slide rail; 14. Bag-supporting plate; 141. Insertion part; 15. Bag-supporting drive module; 151. Bidirectional drive assembly; 1511. First drive component; 1512. Gear; 1513. Rack; 152. Slider; 153. Swing rod; 16. Bag-pumping component; 17. Bag-pumping drive module; 171. Slide seat; 172. Second drive component; 173. Synchronous belt; 174. Pulley;

[0033] 2. Rack;

[0034] 3. Bag receiving mechanism; 31. First limit frame; 32. Second limit frame; 33. Bag receiving drive assembly; 34. U-shaped groove. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] This utility model provides a bag-opening mechanism 1 to solve the problem of how to open the entire tea bag.

[0037] See Figure 1 and Figure 2 As shown, Figure 1 This is a perspective view of the bag-feeding and bag-supporting mechanism and the tea packaging machine using this mechanism in the embodiment. Figure 2The following is a perspective view of the bag-poking and bag-supporting mechanism and the bag-receiving mechanism in the embodiment. The bag-poking and bag-supporting mechanism 1 includes a bracket 11, a hopper 12, a hopper drive module 13, a bag-supporting plate 14, a bag-supporting drive module 15, a bag-poking component 16, and a bag-poking drive module 17.

[0038] The hopper drive module 13 is mounted on the bracket 11 and is connected to the hopper 12 via a transmission. The hopper drive module 13 is used to drive the hopper 12 to move up and down.

[0039] There are two bag support plates 14. The two bag support plates 14 are symmetrically distributed and rotatably connected to the bottom sides of the hopper 12. The bag support drive module 15 is installed on the output end of the hopper drive module 13 and is connected to the two bag support plates 14 in a transmission manner. The bag support drive module 15 is used to drive the two bag support plates 14 to rotate towards or away from each other.

[0040] The bag-pumping component 16 is located between the two bag-supporting plates 14. The bag-pumping drive module 17 is mounted on the bracket 11 and is connected to the bag-pumping component 16 for transmission. The bag-pumping drive module 17 is used to drive the bag-pumping component 16 to move up and down.

[0041] When the bag-pumping and bag-supporting mechanism 1 of the above technical solution is used, firstly, the hopper drive module 13 drives the hopper 12, the two bag-supporting plates 14, and the bag-supporting drive module 15 to descend together, inserting the two bag-supporting plates 14 downwards into the bottom of the tea bag from the bag opening. At this time, the initial positions of the two bag-supporting plates 14 are intersecting and overlapping each other, forming an inverted triangle, so that the bag-supporting plates 14 can be easily inserted downwards into the bag opening. Then, the bag-supporting drive module 15 drives the two bag-supporting plates 14 to rotate in opposite directions and open outwards, thus opening the entire tea bag and quickly forming a flat tea bag in three dimensions. Next, the bag-pumping drive module 17 drives the bag-pumping component 16 to descend between the two bag-supporting plates 14 and insert it into the bottom of the tea bag, which can further open the entire tea bag. Finally, the tea is poured into the hopper 12, and the tea in the hopper 12 enters the bottom of the tea bag directly along the bag-supporting plates 14 and the bag-pumping component 16. After the tea leaves are bagged, the bag-poke driving module 17 drives the bag-poke component 16 to rise and move out of the tea bag, returning it to its original position. Then, the bag-supporting driving module 15 drives the two bag-supporting plates 14 to rotate in opposite directions. At the same time, the hopper driving module 13 drives the hopper 12 and the bag-supporting driving module 15 to rise together, so that the two bag-supporting plates 14 move out of the tea bag and return to their original positions. It can be seen that the bag-poke and bag-supporting mechanism 1, through the cooperation of the bag-supporting plates 14 and the bag-supporting driving module 15, can open up the entire tea bag, allowing the flat tea bag to quickly form a three-dimensional shape. Combined with the bag-poke component 16 and the bag-poke driving module 17, it can further open up the entire tea bag, ensuring that the tea bag remains fully open during the filling process, thereby effectively avoiding the problems of tea leakage and spillage.

[0042] See Figure 2 and Figure 3 As shown, Figure 3The diagram shows a perspective view of the bag-holding mechanism in one embodiment. In one implementation of the bag-holding plate 14, the cross-section of the bag-holding plate 14 is U-shaped, and two bag-holding plates 14 enclose a closed-loop structure, which is connected to the hopper 12. The bottom end of the bag-holding plate 14 is provided with an insertion part 141 for inserting a tea bag, which is integrally connected or welded. The cross-section of the insertion part 141 is straight. Thus, the insertion part 141 allows the bag-holding plate 14 to be easily inserted downwards into the opening of the tea bag. After the insertion part 141 is fully inserted into the tea bag, tea is poured into the tea bag. Because the two bag-holding plates 14 enclose a closed-loop structure, this effectively prevents tea from leaking out between the two bag-holding plates 14.

[0043] See Figure 3 and Figure 4 As shown, Figure 4 This is a schematic diagram of the structure of the hopper drive module, bag support plate, and bag support drive module in one embodiment. In one embodiment of the bag support drive module 15, the bag support drive module 15 includes a bidirectional drive assembly 151, two sliders 152, and two rocker arms 153. A slide rail 131 is provided on the output end of the hopper drive module 13 by welding or screwing. The slide rail 131 extends laterally. Both sliders 152 are slidably connected to the slide rail 131. One end of each of the two rocker arms 153 is rotatably connected to the two sliders 152, and the other end is fixedly connected to the two bag support plates 14 by welding or screwing. The bidirectional drive assembly 151 is installed on the output end of the hopper drive module 13, and the output end of the bidirectional drive assembly 151 is connected to the two sliders 152 by welding or screwing. The bidirectional drive assembly 151 is used to drive the two sliders 152 to slide towards or away from each other along the slide rail 131, and the two sliders 152 drive the two bag support plates 14 to rotate towards or away from each other through the two rocker arms 153. Thus, the bidirectional drive assembly 151, the two sliders 152, and the two rocker arms 153 work together to drive the two bag-supporting plates 14 to rotate synchronously in opposite directions or towards each other, thereby controlling the two bag-supporting plates 14 to move away from or towards each other. When the two bag-supporting plates 14 are close together, the two insertion parts 141 abut against each other, so that the two bag-supporting plates 14 can be inserted into the opening of the tea bag together. When the two bag-supporting plates 14 are far apart, the opening of the tea bag can be opened, allowing the flat tea bag to be quickly formed into a three-dimensional shape. Moreover, the two sliders 152 are slidably connected along the same slide rail 131, and their sliding spaces overlap, which can effectively save the space occupied by the bag-push and bag-supporting mechanism 1.

[0044] See Figure 4As shown, in one embodiment of the bidirectional drive assembly 151, the bidirectional drive assembly 151 includes a first drive member 1511, a gear 1512, and two racks 1513. The first drive member 1511 is disposed on the output end of the hopper drive module 13 by welding or screwing, and the output end of the first drive member 1511 is connected to the gear 1512 by welding or coupling. The two racks 1513 are distributed opposite to each other on both sides of the gear 1512, and both racks 1513 mesh with the gear 1512. The two racks 1513 are also fixedly connected to two sliders 152 by welding or screwing. The first drive member 1511 is used to drive the gear 1512 to rotate, and the gear 1512 drives the two sliders 152 to slide towards or away from each other along the slide rail 131 through the two racks 1513. In this way, by driving the gear 1512 to rotate through the first driving component 1511, the two sliders 152 can be driven to slide synchronously towards or away from each other, which greatly saves driving costs.

[0045] The first drive unit 1511 mentioned above can use existing rotary cylinders or rotary motors or other rotary drive mechanisms.

[0046] See Figure 3As shown, in one embodiment of the hopper drive module 13 and the bag-push drive module 17, both the hopper drive module 13 and the bag-push drive module 17 include a slide 171, a second drive member 172, a timing belt 173, and pulleys 174. The bracket 11 includes a guide rail 111 extending vertically. The slide 171 of both the hopper drive module 13 and the bag-push drive module 17 are slidably connected to the guide rail 111. The slide 171 of the hopper drive module 13 is connected to the hopper 12 and the bag-push drive module 15 by welding or screwing. The slide 171 of the bag-push drive module 17 is connected to the bag-push member 16 by welding or screwing, and the slide 171 of the bag-push drive module 17 is located above the slide 171 of the hopper drive module 13. In both the hopper drive module 13 and the bag-push drive module 17, there are at least two pulleys 174, arranged along the length of the guide rail 111. The synchronous belt 173 is located on one side of the guide rail 111 and is fitted onto the pulley 174, providing a driving connection to the pulley 174. The synchronous belt 173 is also fixedly connected to the slide 171. The second driving member 172 is mounted on the bracket 11 by welding or screwing. The output end of the second driving member 172 is connected to one of the pulleys 174 by welding or coupling. The second driving member 172 drives the pulley 174 to rotate, and the pulley 174 drives the slide 171 to slide along the guide rail 111 via the synchronous belt 173. In this way, both the hopper drive module 13 and the bag-pumping drive module 17 can drive the slide 171 to slide up and down along the guide rail 111 via belt drive. Moreover, the slides 171 of the hopper drive module 13 and the slides 171 of the bag-pumping drive module 17 slide along the same guide rail 111, and their sliding spaces overlap, which can effectively save the space occupied by the bag-pumping and bag-supporting mechanism 1.

[0047] The second drive unit 172 mentioned above can use existing rotary cylinders or rotary motors or other rotary drive mechanisms.

[0048] See Figure 1 As shown, this utility model also provides a tea packaging machine, including a frame 2, a bag receiving mechanism 3, and the aforementioned bag-pushing and supporting mechanism 1. The support 11 is fixed to the frame 2 by welding or screwing. The bag receiving mechanism 3 is mounted on the frame 2 by welding or screwing and is located below the bag-pushing and supporting mechanism 1. The bag receiving mechanism 3 is used to receive and limit the tea bags. The specific implementation process of the bag-pushing and supporting mechanism 1 is described above and will not be repeated here. Since the bag-pushing and supporting mechanism 1 has the aforementioned technical effects, the tea packaging machine using this mechanism also has corresponding technical effects.

[0049] See Figure 1 , Figure 2 and Figure 5 As shown, Figure 5This is a perspective view of the bag-receiving mechanism in one embodiment. In one implementation of the bag-receiving mechanism 3, the mechanism includes a first limiting frame 31, a second limiting frame 32, and a bag-receiving drive assembly 33. The bag-receiving drive assembly 33 is mounted on the frame 2 by welding or screwing, and its output end is connected to the first limiting frame 31 and the second limiting frame 32 by welding or screwing. The bag-receiving drive assembly 33 drives the first limiting frame 31 and the second limiting frame 32 to move towards or away from each other, forming a U-shaped groove 34 for accommodating and limiting the tea bag, or opening the U-shaped groove 34. The U-shaped groove 34 is located directly below the hopper 12. Thus, when the bag receiving drive assembly 33 drives the first limiting frame 31 and the second limiting frame 32 to move towards each other, they can combine to form a U-shaped groove 34 that matches any size tea bag, so as to receive any size tea bag and restrict the tea bag below the bag opening and supporting mechanism 1, so that the opening of the tea bag is opposite to the discharge end of the hopper 12, to ensure the smooth progress of subsequent bag supporting, bag opening and material pouring operations; after the tea is poured into the tea bag, the bag receiving drive assembly 33 drives the first limiting frame 31 and the second limiting frame 32 to move away from each other, which can release the tea bag and open the U-shaped groove 34, allowing the tea bag to fall out of the U-shaped groove 34.

[0050] The above-mentioned bag-receiving drive assembly 33 can be implemented using the hopper drive module 13 and the bag-pouring drive module 17 described above. However, two slides 171 need to be provided for the bag-receiving drive assembly 33. The two slides 171 are fixed to both sides of the same synchronous belt 173, and the two slides 171 also slide along the same guide rail 111. In this way, the second drive member 172 drives the pulley 174 to rotate. The pulley 174 can drive the two slides 171 to slide towards or away from each other along the same guide rail 111 through the synchronous belt 173. This not only greatly saves the drive cost, but also effectively saves the space occupied by the bag-receiving mechanism 3 by having overlapping sliding spaces of the two slides 171.

[0051] During any of the above sliding processes, the sliding stroke can be controlled by devices such as position sensors to ensure precise control of the sliding position.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bag poking and opening mechanism comprising a support, characterized in that, The bag poking and supporting mechanism further comprises: a hopper and a hopper driving module, the hopper driving module is arranged on the support and is in transmission connection with the hopper, and the hopper driving module is used to drive the hopper to move up and down; a bag supporting plate and a bag supporting driving module, the bag supporting plate is symmetrically arranged in two and is rotationally connected to the bottom of the hopper on both sides, the bag supporting driving module is arranged on the output end of the hopper driving module and is in transmission connection with the two bag supporting plates, and the bag supporting driving module is used to drive the two bag supporting plates to rotate towards or away from each other; a bag poking piece and a bag poking driving module, the bag poking piece is located between the two bag supporting plates, the bag poking driving module is arranged on the support and is in transmission connection with the bag poking piece, and the bag poking driving module is used to drive the bag poking piece to move up and down.

2. The bag poking and holding mechanism according to claim 1, characterized in that, The cross section of the bag supporting plate is in the shape of U, the two bag supporting plates form a closed loop structure, the closed loop structure is in communication with the hopper in a butt joint mode, and the bottom end of the bag supporting plate is provided with an insertion part for inserting a tea bag, and the cross section of the insertion part is in the shape of a straight line.

3. The bag poking and holding mechanism according to claim 2, wherein The bag supporting driving module comprises: two sliding blocks and two swing rods, the output end of the hopper driving module is provided with a sliding rail, the sliding rail is arranged in the transverse direction, the two sliding blocks are slidingly connected to the sliding rail, one end of the two swing rods is rotationally connected to the two sliding blocks respectively, and the other end is fixedly connected to the two bag supporting plates respectively; a bidirectional driving assembly, the bidirectional driving assembly is arranged on the output end of the hopper driving module, the output end of the bidirectional driving assembly is connected to the two sliding blocks, and the bidirectional driving assembly is used to drive the two sliding blocks to slide towards or away from each other along the sliding rail, and the two sliding blocks drive the two bag supporting plates to rotate away from or towards each other through the two swing rods.

4. The bag poking and holding mechanism according to claim 3, wherein The bidirectional driving assembly comprises a first driving piece, a gear and two racks, the first driving piece is arranged on the output end of the hopper driving module, the output end of the first driving piece is connected to the gear, the two racks are oppositely arranged on the two sides of the gear and are in meshing connection with the gear, and the two racks are fixedly connected to the two sliding blocks respectively; wherein, the first driving piece is used to drive the gear to rotate, and the gear drives the two sliding blocks to slide towards or away from each other along the sliding rail through the two racks.

5. The bag poking and holding mechanism according to claim 1, wherein The hopper driving module and the bag poking driving module both comprise: a sliding seat, the support comprises a guide rail arranged in the vertical direction, the sliding seat of the hopper driving module and the sliding seat of the bag poking driving module are both slidingly connected to the guide rail, the sliding seat of the hopper driving module is connected to the hopper and the bag supporting driving module, and the sliding seat of the bag poking driving module is connected to the bag poking piece and is located above the sliding seat of the hopper driving module; The second driving member, the synchronous belt and the pulley, the pulley is provided with at least two and arranged along the length direction of the guide rail, the synchronous belt is arranged on one side of the guide rail and is in transmission connection with the pulley, the synchronous belt is fixedly connected with the sliding base, the second driving member is arranged on the support, the output end of the second driving member is connected with one of the pulleys, the second driving member is used for driving the pulley to rotate, and the pulley drives the sliding base to slide along the guide rail through the synchronous belt.

6. A tea leaf packing machine comprising a frame, characterised in that, The tea leaf packaging machine further comprises a bag receiving mechanism and the bag poking and supporting mechanism according to any one of claims 1-5, the support is fixedly arranged on the frame, the bag receiving mechanism is arranged on the frame and located below the bag poking and supporting mechanism, and the bag receiving mechanism is used for receiving and limiting the tea leaf bag.

7. The tea packaging machine according to claim 6, characterized in that The bag receiving mechanism comprises a first limiting frame, a second limiting frame and a bag receiving driving assembly, the bag receiving driving assembly is arranged on the frame, the output end of the bag receiving driving assembly is connected with the first limiting frame and the second limiting frame, and the bag receiving driving assembly is used for driving the first limiting frame and the second limiting frame to move towards or away from each other, so as to combine to form a U-shaped groove for containing and limiting the tea leaf bag or open the U-shaped groove. The U-shaped groove is located directly below the hopper.

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