A packaging machine

Abstract

The present application belongs to the technical field of packaging equipment, and discloses a packaging machine, wherein a linkage member is arranged along the arrangement direction of the heat sealing mechanisms, the linkage member is respectively connected with each heat sealing mechanism through a motion assembly to drive all the heat sealing mechanisms to move synchronously, and the linkage member penetrates through the warehouse body I to form a driving part; the packaging machine further comprises a vacuum pumping mechanism which performs vacuum pumping operation on the combined warehouse body in the parallel path section. The packaging machine can effectively avoid the problem of poor heat sealing effect caused by air leakage, and can complete the vacuum pumping operation and the heat sealing operation during the movement of the combined warehouse body, thereby effectively improving the heat sealing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of packaging equipment technology, and particularly relates to a packaging machine. Background Technology

[0002] To improve the material packaging efficiency of the factory production line, it is necessary to optimize the packaging process and ensure that the time spent in each process is minimized, so as to complete the packaging of more materials per unit time.

[0003] Heat sealing of packaging bags is usually carried out in a sealed environment. Two compartments are usually joined together to form a combined compartment, and then heat sealing is performed in the combined compartment. The combined compartment is usually in a vacuum state, so it is necessary to ensure the airtightness of the combined compartment. In other words, the more dynamic connection points there are between the action mechanism of the heat sealing mechanism and the combined compartment, the greater the risk of air leakage and the less conducive it is to ensuring the heat sealing effect.

[0004] In some existing technologies, vacuuming and heat sealing are usually two separate processes, which cannot be carried out dynamically, resulting in low heat sealing efficiency of packaging bags. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention discloses a packaging machine that can effectively avoid the problem of poor heat sealing effect caused by air leakage, and complete the vacuuming and heat sealing operations during the movement of the combined chamber, thus effectively improving heat sealing efficiency.

[0006] The specific technical solution of the present invention is as follows:

[0007] A packaging machine, comprising:

[0008] A conveying mechanism 1, comprising a housing 1, wherein the conveying mechanism 1 drives the housing 1 to move along a preset path, and the housing 1 contains an actuating mechanism and at least two heat-sealing mechanisms arranged side-by-side; the actuating mechanism includes a linkage and an actuating assembly, the linkage extending along the arrangement direction of the heat-sealing mechanisms, the linkage being connected to each of the heat-sealing mechanisms via the actuating assembly to drive all the heat-sealing mechanisms to move synchronously, and the linkage extending out of the housing 1 to form a driving part; and

[0009] The second conveying mechanism is provided with a second storage chamber. The second conveying mechanism drives the second storage chamber to move along a preset path. The second storage chamber is provided with a clamping mechanism for fixing the packaging bag.

[0010] Among them, the preset path one and preset path two have parallel path segments that are parallel to each other, and the warehouse one and warehouse two connect in the parallel path segments to form a closed combined warehouse for travel.

[0011] It also includes a vacuuming mechanism that performs vacuuming operations on the combined chambers in the parallel path segment.

[0012] During the movement of chamber one and chamber two, they can be docked to form a combined chamber. Gas is extracted from the combined chamber, allowing chamber one and chamber two to be tightly connected under negative pressure. This allows the packaging bag to be heat-sealed at the opening by a heat-sealing mechanism in a vacuum environment. Since the actuation mechanism and heat-sealing mechanism are both located in chamber one, and only the linkage extends through chamber one to form the drive unit, there is only a dynamic connection point between the linkage and chamber one. In other words, there is only one point where there is a risk of air leakage, thus effectively ensuring the heat-sealing effect. Furthermore, the conveying mechanism transports chamber one, and the conveying... During the movement of the second conveyor chamber, the two chambers are joined together in the parallel path section to form a combined chamber. The gas in the combined chamber is extracted by the vacuuming mechanism, so that the first and second chambers are tightly connected by negative pressure. At this time, the combined chamber continues to move along the vacuuming section. Since the packaging bag is held in the second chamber, the air in the packaging bag is also extracted during the vacuuming process. Therefore, after the packaging bag is heat-sealed at the end of the vacuuming section, it is possible to avoid residual air pockets in the packaging bag, thereby improving the shelf life of the packaging bag and significantly improving the packaging efficiency of the current packaging equipment.

[0013] Preferably, the vacuum pumping mechanism includes:

[0014] A gas distribution guide rail, wherein the gas distribution guide rail is arranged along a parallel path segment, and a plurality of air holes are spaced apart on the rail surface; and

[0015] The fitting component is disposed on a first chamber or a second chamber. The fitting component is provided with a ventilation channel for communicating with an air hole. The ventilation channel is connected to the first chamber or the second chamber. It is also provided with a mating surface for conforming to the surface of the air distribution guide rail to travel along the air distribution guide rail. The ventilation inlet of the ventilation channel is provided on the mating surface.

[0016] The valve guide rail is provided with transition rails at both ends. There is a preset height difference 1 between the rail surface of the transition rail and the rail surface of the valve guide rail. The mating component is provided with guide wheels for traveling along the transition rail. There is a preset height difference 2 between the traveling surface formed by the guide wheels and the mating surface. The preset height difference 1 is equal to the preset height difference 2.

[0017] Alternatively, the vacuum pumping mechanism includes:

[0018] The air slip ring assembly has several flexible tubes II arranged on the air slip ring along the rotational circumference, and the flexible tubes II are respectively connected to the chamber body I.

[0019] Alternatively, the vacuum pumping mechanism includes:

[0020] One-way valve installed on compartment one or compartment two;

[0021] An air extraction pipe is located beside a parallel path section and can be switched between an air extraction position and a waiting position. When the air extraction pipe is in the air extraction position, it cooperates with a one-way valve.

[0022] The vacuuming mechanism features guide wheels on the mating component to engage with the transition rail at the end of the gas distribution guide rail. These guide wheels roll, allowing the mating component to smoothly enter and exit the transition rail, effectively reducing or preventing impacts and improving smoothness. Furthermore, when the mating component enters the transition rail, the contact surface precisely reaches the height required to mate with the gas distribution guide rail surface. As the mating component continues to enter the gas distribution guide rail, the contact surface precisely mates with the rail surface, ensuring a smooth and precise entry into the gas distribution guide rail. This effectively avoids impacts, prevents component damage, and ensures long-term stable operation of the equipment. It can reliably perform vacuuming operations; the vacuuming mechanism uses a rotatable air slip ring to cooperate with the movement of the first chamber. This structure is simple and, in addition to achieving vacuuming, can also prevent the flexible tube 2 from getting tangled, thus effectively ensuring movement stability; when using the one-way valve, when the combined chamber moves along the parallel path segment to the air extraction pipe, the first and second conveying mechanisms pause their operation, and then the air extraction pipe switches to the air extraction position to cooperate with the one-way valve to perform vacuuming operations on the combined chamber. After the vacuuming is completed, the air extraction pipe switches to the waiting position, and the first and second conveying mechanisms start, so that the combined chamber continues to move along the parallel path segment.

[0023] Preferably, the conveying mechanism includes a track assembly for forming a preset path.

[0024] The track assembly includes track one, track two, track three and track four arranged sequentially along a preset circular conveying path;

[0025] The second track is mounted on the first switching mechanism so that it can switch between position one and position two. When the second track is in position one, it engages with the first track and disconnects from the third track. When the second track is in position two, it disconnects from the first track and engages with the third track.

[0026] The fourth track is mounted on the second switching mechanism so that it can be switched between position three and position four by the second switching mechanism. When the fourth track is in position three, the fourth track is engaged with the first track and disconnected from the third track. When the fourth track is in position four, the fourth track is engaged with the first track and connected to the third track.

[0027] The conveying mechanism also includes a drive mechanism disposed at one point on the track to drive the bin body disposed on the track assembly to move forward;

[0028] The parallel path segment of the conveying mechanism one includes track three, track two at position two, and track four at position four.

[0029] The first hopper slides along a preset circular conveying path on tracks one, two, three, and four. When it is desired that the first hopper enters track three from track one, it needs to transition into track two. This can be achieved by switching the position of switching mechanism one, thus maintaining the preset precise alignment in subsequent processes. Similarly, after the corresponding process is completed, when it is desired that the first hopper re-enter track one from track three, track four is used for transition, which can be achieved by switching the position of switching mechanism two. This reduces the relative movement distance of the first hopper, thereby effectively reducing the length of the conveying path and avoiding an excessively large volume of the circular conveying mechanism. This also ensures that the circular conveying mechanism has high conveying efficiency. Compared with two traditional circular conveying mechanisms that convey their respective hoppers, it also avoids the large synchronization requirements of the conveying rates between two traditional circular conveying mechanisms, thus reducing the difficulty of implementation.

[0030] Preferably, the circular transport path of the track assembly is triangular in shape, and the track one has an arc-shaped path segment;

[0031] The first switching mechanism drives the second track to swing to switch between position one and position two, and the second switching mechanism drives the fourth track to swing to switch between position three and position four.

[0032] This structure can save the assembly volume of the track components, which is beneficial to reduce assembly time and improve process efficiency. The switching mechanism one and switching mechanism two are oscillating actions, so their movement paths are arc-shaped. This structure is more compact and can make better use of limited space for arrangement.

[0033] Preferably, the drive mechanism includes:

[0034] The actuating assembly and the transmission component one are driven by the transmission component one to reciprocate along the track one, and the actuating assembly pushes the compartment one to move along the track assembly;

[0035] Alternatively, the second driving mechanism includes:

[0036] The second transmission component is a conveyor chain or conveyor belt. In the second transmission component and the first hopper, one has a protrusion and the other has a mating part that connects with the protrusion.

[0037] This drive mechanism has a simple structure, small size, and high driving efficiency. When the drive mechanism includes a toggle assembly and a transmission component, when the transmission component is activated, the toggle assembly first moves along the track 1 along a preset path to drive the compartment 1. Then, the toggle assembly moves in the opposite direction along the track 1 along the preset path to reach the driving position for the next compartment 1. When it moves along the track 1 along the preset path again, it can drive the compartment 1, thereby driving multiple compartments 1. When the drive mechanism includes a transmission component 2, the transmission component 2 operates cyclically. Through the connection of the protrusion and the mating part, the movement of the transmission component 2 drives the movement of the compartment 1 along the track assembly, thereby also driving multiple compartments 1.

[0038] Preferred options also include:

[0039] A power source acting on the drive unit, the power source moving along a preset path with the chamber body;

[0040] Alternatively, the power source may be located at a preset workstation on a preset path when the silo moves.

[0041] The driving mechanism can be implemented through various structures, which are simple and practical.

[0042] Preferably, the linkage reciprocates along the arrangement direction of the heat sealing mechanism to drive all heat sealing mechanisms to open and close synchronously;

[0043] Alternatively, the linkage may rotate around its own axis to drive all heat-sealing mechanisms to open and close synchronously.

[0044] The linkage can drive the heat sealing mechanism through linear motion or rotation, and has only one dynamic connection point with the chamber body, resulting in stable driving capability and simple structure.

[0045] Preferably, the actuation component includes an opening / closing component one, an opening / closing component two, and a transmission component. The opening / closing component one and the opening / closing component two are slidably or rotatably disposed within the chamber body one. The heat sealing part one of the heat sealing mechanism is connected to the opening / closing component one, and the heat sealing part two of the heat sealing mechanism is connected to the opening / closing component two. The transmission component is disposed on the linkage component and moves with the linkage component. The transmission component cooperates with the opening / closing component one and / or the opening / closing component two to drive the opening / closing component one and the opening / closing component two to move toward each other, thereby opening and closing the heat sealing mechanism.

[0046] To achieve the opening and closing of the heat sealing mechanism, there is a reverse movement between the heat sealing part one and the heat sealing part two. Generally, this is a symmetrical movement, meaning that there is a linkage between the heat sealing part one and the heat sealing part two. In order to simplify the overall structure and make it easy to implement, some technical solutions place the linkage part outside the chamber body one. This results in dynamic connection points between the heat sealing part one and the heat sealing part two and the chamber body one, which is not conducive to ensuring the vacuum degree in the combined chamber. In this application, the opening and closing part one, the opening and closing part two, and the transmission part are all located in the chamber body one. It can be understood that the heat sealing part one and the heat sealing part two are also located in the chamber body one. That is to say, this application can achieve stable opening and closing of the heat sealing mechanism and ensure the heat sealing effect with only one and only one leakage risk point.

[0047] Preferably, the sliding directions of the first and second opening / closing components are perpendicular to the arrangement direction of the heat sealing mechanism, and the linkage component reciprocates along the arrangement direction of the heat sealing mechanism.

[0048] The transmission component is provided with a guide portion that is at an angle to the direction of movement of the linkage component. The first opening and closing component and the second opening and closing component are respectively provided with an actuating part that slides with the guide portion. Alternatively, the first opening and closing component and the second opening and closing component are respectively provided with a guide portion that is at an angle to the direction of movement of the linkage component, and the transmission component is provided with an actuating part that slides with the guide portion.

[0049] The structure is simple. The guide part and the actuating part work together. By changing the direction of the guide part, the opening and closing parts one and two move in opposite directions to realize the opening and closing action of the heat sealing mechanism, thereby meeting the heat sealing requirements of the opening of the packaging bag.

[0050] Preferably, an elastic element is provided between the first opening / closing component and the first heat-sealing component, and an elastic element is provided between the second opening / closing component and the second heat-sealing component.

[0051] Multiple heat-sealing mechanisms are arranged side-by-side in the first compartment. The movement of the linkage can drive all heat-sealing mechanisms to move synchronously. When the distance between the heat-sealing mechanisms is long, the heat-sealing mechanism close to the linkage can ensure a stable heat-sealing effect. However, for the heat-sealing mechanism far from the linkage, the heat-sealing effect may not be guaranteed. That is to say, for the heat-sealing mechanism far from the linkage, its heat-sealing part one and heat-sealing part two may not be able to fully contact each other. At this time, the opening of the packaging bag cannot be completely sealed. Therefore, the elastic element can support the heat-sealing part one and heat-sealing part two to fully contact each other during the opening and closing of the heat-sealing mechanism, thereby ensuring the sealing effect.

[0052] Preferably, the opening and closing direction of the heat sealing mechanism is perpendicular to the arrangement direction of the heat sealing mechanism;

[0053] Alternatively, the opening and closing direction of the heat sealing mechanism is set along the arrangement direction of the heat sealing mechanism.

[0054] For different packaging machines, the number of heat-sealing mechanisms can be determined by adjusting their opening and closing directions. In other words, with the same opening and closing direction for all heat-sealing mechanisms, different opening and closing directions will result in different overall lengths of the storage unit. When the number of heat-sealing mechanisms is the same, if the opening and closing direction of the heat-sealing mechanisms is perpendicular to their arrangement direction, the overall length of the storage unit will be relatively longer. If the opening and closing direction of the heat-sealing mechanisms is set along their arrangement direction, the overall length of the storage unit will be relatively shorter. In other words, the opening and closing direction of the heat-sealing mechanisms can be configured to adapt to different site sizes.

[0055] Compared with existing technologies, this invention can reduce the number of dynamic connection points on the first compartment, thereby effectively reducing the risk of air leakage and ensuring that the combined compartment has good airtightness for vacuuming, while achieving stable heat sealing of the packaging bag. This invention is compact and can effectively achieve the docking and sealing between the first and second compartments, thus well meeting the vacuuming and heat sealing conditions. In addition, this invention can achieve vacuuming and heat sealing actions during the movement of the combined compartment, thereby improving heat sealing efficiency. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the docking of the combined compartments in an embodiment of the present invention;

[0057] Figure 2 This is a schematic diagram of the first chamber in an embodiment of the present invention;

[0058] Figure 3 This is a schematic diagram illustrating the arrangement of the actuation mechanism and the heat sealing mechanism in an embodiment of the present invention;

[0059] Figure 4 for Figure 3 A diagram from another direction;

[0060] Figure 5 for Figure 3 Exploded view;

[0061] Figure 6 This is a schematic diagram of one type of opening and closing of the heat sealing mechanism in an embodiment of the present invention;

[0062] Figure 7 This is a schematic diagram of one type of opening and closing of the heat sealing mechanism in an embodiment of the present invention;

[0063] Figure 8 This is a schematic diagram of one type of opening and closing of the heat sealing mechanism in an embodiment of the present invention;

[0064] Figure 9This is a schematic diagram of one type of opening and closing of the heat sealing mechanism in an embodiment of the present invention;

[0065] Figure 10 This is a schematic diagram of one type of opening and closing of the heat sealing mechanism in an embodiment of the present invention;

[0066] Figure 11 This is a schematic diagram of another arrangement of the heat sealing mechanism in an embodiment of the present invention;

[0067] Figure 12A This is a schematic diagram of a docking between the power source and the drive unit in an embodiment of the present invention;

[0068] Figure 12B for Figure 12A A simplified diagram;

[0069] Figure 13 This is another schematic diagram of the docking between the power source and the drive unit in an embodiment of the present invention;

[0070] Figure 14 This is a schematic diagram illustrating another configuration of switching mechanism one and switching mechanism two in an embodiment of the present invention;

[0071] Figure 15 This is a schematic diagram showing the arrangement of the drive mechanism one in an embodiment of the present invention;

[0072] Figure 16 for Figure 15 Enlarged view of point A;

[0073] Figure 17 for Figure 15 Enlarged view of point B;

[0074] Figure 18 This is a schematic diagram of the actuating mechanism in an embodiment of the present invention;

[0075] Figure 19 This is a schematic diagram showing the arrangement of the second driving mechanism in an embodiment of the present invention;

[0076] Figure 20 for Figure 19 Enlarged view of point C;

[0077] Figure 21 This is a schematic diagram of the second conveying mechanism in an embodiment of the present invention;

[0078] Figure 22 This is a schematic diagram of the vacuuming mechanism in an embodiment of the present invention;

[0079] Figure 23 This is a schematic diagram of the transition track in an embodiment of the present invention;

[0080] Figure 24 for Figure 23 Enlarged view of point D;

[0081] Figure 25 This is a schematic diagram of the structure of the mating component on the gas distribution guide rail in an embodiment of the present invention;

[0082] Figure 26 This is a partial structural diagram of the mating component on the transition rail in an embodiment of the present invention;

[0083] Figure 27 This is a schematic diagram of one direction of the mating component in an embodiment of the present invention;

[0084] Figure 28 This is a schematic diagram of the mating parts from another direction in an embodiment of the present invention;

[0085] Figure 29 This is a cross-sectional view of the mating parts in an embodiment of the present invention;

[0086] Figure 30 This is a schematic diagram of the structure of the hidden movable part of the mating component in an embodiment of the present invention;

[0087] Figure 31 This is a schematic diagram of another vacuuming mechanism in an embodiment of the present invention;

[0088] Figure 32 This is a schematic diagram of another vacuum pumping mechanism in an embodiment of the present invention.

[0089] In the diagram: 1-Crater 1; 2-Crater 2; 3-Actuating mechanism; 4-Heat sealing mechanism; 5-Linking component; 6-Drive unit; 7-Opening / closing component 1; 8-Opening / closing component 2; 9-Transmission component; 10-Heat sealing component 1; 11-Heat sealing component 2; 12-Crossbar; 13-Guide unit; 14-Actuating part; 15-Driver component; 16-Return spring; 17-Cam; 18-Ring groove; 19-Elastic component; 20-Forward thread; 21-Reverse thread; 22-Power source; 23-Railway 1; 24-Railway 2; 25-Railway 3; 26-Railway 4; 27-Switching mechanism 1; 28-Switching mechanism 2; 29-Transmission component 1; 30-Pushing component 1 31-Pushing part II; 32-Actuating assembly; 33-Transmission component I; 34-Base; 35-Actuating component; 36-Reset component; 37-Transmission component II; 38-Protrusion; 39-Matching part; 40-Power source; 41-Matching part; 42-Base; 43-Moving part; 44-Matching surface; 45-Guide wheel; 46-Air distribution guide rail; 47-Air hole; 48-Transition rail; 49-Guide slope section; 50-Flexible tube I; 51-Air inlet; 52-Air outlet; 53-Elastomer; 54-Stator; 55-Air slip ring; 56-Flexible tube II; 57-First wheel group; 58-Second wheel group; 59-One-way valve. Detailed Implementation

[0090] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to specific embodiments.

[0091] like Figures 1-5 , Figure 21 As shown, a packaging machine includes a first conveying mechanism and a second conveying mechanism. The first conveying mechanism is provided with a first chamber 1, which is driven to move along a preset path. The first chamber 1 is provided with an action mechanism 3 and at least two heat sealing mechanisms 4 arranged side by side. The action mechanism 3 includes a linkage 5 and an action component. The linkage 5 extends along the arrangement direction of the heat sealing mechanisms 4 and is connected to each of the heat sealing mechanisms 4 through the action component to drive all the heat sealing mechanisms 4 to move synchronously. The linkage 5 extends out of the first chamber 1 to form a drive unit 6. The second conveying mechanism is provided with a second chamber 2, which is driven to move along a second preset path. The second chamber 2 is provided with a clamping mechanism for fixing the packaging bag. The first preset path and the second preset path have parallel path segments. The first chamber 1 and the second chamber 2 are joined together in the parallel path segments to form a closed combined chamber for movement. The machine also includes a vacuuming mechanism that performs a vacuuming operation on the combined chamber in the parallel path segments.

[0092] In this embodiment, the first conveying mechanism drives the first chamber 1 to move along the first preset path, and the second conveying mechanism drives the second chamber 2 to move along the second preset path. Both the first and second preset paths are circular paths. Therefore, during the movement of the first chamber 1 and the second chamber 2, there are three movement stages: separation movement, opposite movement, and same-direction movement. When the first chamber 1 and the second chamber 2 are located in the parallel path segment, they move in the same direction, thus they can dock to form a combined chamber. Under the action of the vacuuming mechanism, the combined chamber is tightly bonded together with negative pressure and moves along the parallel path segment. At this time, the packaging bag is clamped on the two vertical sides by the clamping mechanism in the second chamber 2. The vacuuming mechanism vacuums the combined chamber, and the air in the packaging bag is extracted. While maintaining the vacuum state and continuing to move along the parallel path segment, the heat sealing mechanism 4 heat seals the opening of the packaging bag, thereby ensuring the sealing performance of the packaging bag. Therefore, during the transfer of the packaging bag, the vacuuming and heat sealing of the packaging bag can be realized, thereby saving process time and improving process efficiency. It should be noted that the clamping mechanism is equipped with several clamps connected in parallel, so that several packaging bags can be placed on the clamping mechanism in parallel, and multiple packaging bags can be vacuumed at the same time, which effectively improves the overall processing efficiency and greatly increases the production capacity.

[0093] In this embodiment, the first chamber 1 has a drive mechanism 1 for driving its movement, and the second chamber 2 has a drive mechanism 2 for driving its movement. Therefore, the combined chamber can move along a parallel path segment through the drive mechanism 1 and / or the drive mechanism 2.

[0094] Therefore, after the docking of chamber 1 and chamber 2 is completed, vacuuming can be performed. In this embodiment, the vacuuming mechanism is arranged at the parallel path segment. To avoid impacts during vacuuming, ensure long-term stable operation of the vacuuming system, and guarantee the vacuuming effect, as follows... Figure 22 , Figure 23As shown, the vacuuming mechanism in this embodiment includes a gas distribution guide rail 46 and a mating component 41. Specifically, the gas distribution guide rail 46 is arranged along a parallel path segment. Further, a plurality of air holes 47 are spaced apart on the surface of the gas distribution guide rail 46 along its path direction. A valve assembly for controlling the on / off state is provided in each air hole 47. The gas distribution guide rail 46 is connected to a vacuum generating device (not shown in the figure), meaning that the vacuum generating device is connected to the air holes 47 on the gas distribution guide rail 46 to draw air through the air holes 47 to generate a negative pressure vacuum. The mating component 41 is provided with a vent for communicating with the air holes 47. 1. A fitting surface 44 is provided for conforming to the surface of the gas distribution guide 46 so as to travel along the gas distribution guide 46. An air inlet for the air passage is provided on the fitting surface 44. A mating component 41 is used to connect with the second chamber 2. Specifically, the air outlet of the air passage on the mating component 41 is connected to the second chamber 2. Thus, when the mating component 41 moves along the gas distribution guide 46 with the second chamber 2 in a parallel path segment, and the mating component 41 moves to a point where its air inlet connects with the air hole 47 of the gas distribution guide 46, the second chamber 2 is connected to the vacuum generating device through the air passage, thereby enabling the combined chamber 2 to perform the vacuuming operation. It is understood that in some other embodiments, the air outlet of the air passage on the mating component 41 may also be connected to the first chamber 1. In this embodiment, the vacuuming mechanism adopts a mobile vacuuming method. The mating component 41 moves with the chamber 2. When the air passage of the mating component 41 is directly connected to the air hole 47, the combined chamber stops moving. The valve at the air hole 47 opens and performs a vacuuming operation for a preset time. After this time, the valve closes, and the combined chamber moves again. Due to the vacuum adsorption effect, the mating component 41 is tightly adhered to the surface of the gas distribution guide rail 46 through the mating surface 44. No vacuuming occurs during the process of the mating component 41 moving along the gas distribution guide rail 46 until it reaches the next air hole 47. The vacuum condition means that the combined chamber will maintain its current vacuum level while moving. When the combined chamber moves to the point where the ventilation channel of the mating part 41 is directly connected to the next air hole 47, the valve at the next air hole 47 will open and perform vacuuming again for a preset time before closing. This process is repeated to perform multi-station mobile vacuuming. The vacuuming time at each station is short, making the dynamic and static time ratio of the production line more reasonable, thereby effectively improving the overall processing efficiency and vacuuming efficiency and effect, and meeting the application requirements of high vacuum.Furthermore, the gas distribution guide rail 46 and the mating component 41 can be mated in the vertical direction, meaning the rail surface of the gas distribution guide rail 46 can be a horizontal plane, and the contact surface 44 of the mating component 41 is also a horizontal plane. This ensures that the contact surface 44 of the mating component 41 and the rail surface of the gas distribution guide rail 46 can fully fit together to guarantee airtightness during vacuuming. Alternatively, the gas distribution guide rail 46 and the mating component 41 can be mated in the horizontal direction, meaning the rail surface of the gas distribution guide rail 46 can be a vertical plane, and the contact surface 44 of the mating component 41 is also a vertical plane. Again, the contact surface 44 of the mating component 41 and the rail surface of the gas distribution guide rail 46 can fully fit together to guarantee airtightness during vacuuming. In other words, in some embodiments, the air hole 47 of the gas distribution guide rail 46 is located in the horizontal direction; in other embodiments, the air hole 47 can also be located on the side of the gas distribution guide rail 46.

[0095] Furthermore, such as Figures 22-26 As shown, in order to make the mating part 41 move more smoothly in and out of the air distribution guide rail 46 and avoid collisions and impacts that could affect equipment operation and damage components, transition rails 48 are respectively connected to the inlet and outlet ends of the air distribution guide rail 46. Specifically, there is a preset height difference I between the rail surface of the transition rail 48 and the rail surface of the air distribution guide rail 46. The mating part 41 is provided with guide wheels 45 for traveling along the transition rail 48. There is a preset height difference II between the traveling surface formed by the guide wheels 45 (the traveling surface formed by the guide wheels 45 refers to the plane where the lowest point of the rim of all the guide wheels 45 is located) and the contact surface 44. The preset height difference I is equal to the preset height difference II. The guide wheel 45 rolls forward, allowing the mating part 41 to smoothly enter or exit the transition rail 48. This effectively reduces or avoids impacts, improves smoothness, and when the mating part 41 enters the transition rail 48, the guide wheel 45 contacts the rail surface of the transition rail 48. That is, the traveling surface formed by the guide wheel 45 is on the same plane as the rail surface of the transition rail 48. At this time, the contact surface 44 is exactly at the same height as the rail surface of the air distribution guide rail 46. Thus, when the mating part 41 travels along the transition rail 48 to the air distribution guide rail 46, the contact surface 44 can accurately contact the rail surface of the air distribution guide rail 46 without impact. This allows the mating part 41 to smoothly and accurately enter the air distribution guide rail 46, effectively avoiding impacts, preventing component damage, ensuring long-term stable operation of the equipment, and ensuring reliable vacuuming operations. Furthermore, from a height perspective, specifically, the transition rail 48 can be positioned at a height lower than the valve guide rail 46, with the corresponding travel surface formed by the guide rollers 45 being lower than the contact surface 44; or the transition rail 48 can be positioned at a height higher than the valve guide rail 46, with the corresponding travel surface formed by the guide rollers 45 being higher than the contact surface 44. The preset height difference one and preset height difference two are within the range of 0.3–1 mm, which helps to ensure that the mating part 41 can more precisely and smoothly achieve a tight fit with the valve guide rail 46.

[0096] More specifically, such as Figure 22 , Figure 25 As shown, the transition rail 48 includes tracks respectively set on both sides of the gas distribution guide rail 46 along its path. When the mating component 41 is on the transition rail 48, the guide wheel 45 travels along the track. When the mating component 41 is on the gas distribution guide rail 46, the guide wheel 45 is located on both sides of the gas distribution guide rail 46 along its path. In other words, the guide wheel 45 is set on both sides of the mating component 41's travel direction, and the distance between the guide wheels 45 on both sides of the mating component 41 is greater than the width of the gas distribution guide rail 46's surface. Therefore, when the mating component 41 is on the gas distribution guide rail 46, the guide wheel 45 will not contact the gas distribution guide rail 46, ensuring that the contact surface 44 can fully and effectively fit tightly against the surface of the gas distribution guide rail 46, ensuring good airtightness, and thus ensuring the reliability of vacuuming. Furthermore, the transition rail 48 has a hollowed-out area between the two rails to avoid the mating surface 44 of the mating part 41, which can better ensure that the mating surface 44 of the mating part 41 is in precise contact with the rail surface of the air distribution guide 46 when it enters the air distribution guide 46.

[0097] Furthermore, such as Figure 23 As shown, a guide ramp 49 inclined to the rail surface of the transition rail 48 is also provided at the end of the transition rail 48. When the mating part 41 drives onto the transition rail 48, the guide wheel 45 of the mating part 41 first contacts the guide ramp 49. The guide ramp 49 is inclined at a small angle relative to the travel path of the guide wheel 45, which has good smooth transition and makes the mating part 41 drive into the transition rail 48 more smoothly, and better avoids collision impact.

[0098] The mating component 41 is used to connect the movable chamber 2. The moving path of chamber 2 is difficult to keep highly parallel to the path of the gas distribution guide rail 46. Therefore, during the movement of chamber 2, the distance between chamber 2 and the gas distribution guide rail 46 fluctuates. To ensure the reliability of vacuuming and avoid vacuum breakage due to distance changes, the mating component 41 adopts a movable structure to flexibly adapt to the distance changes between chamber 2 and the gas distribution guide rail 46. Specifically, as shown... Figures 27-30As shown, the mating part 41 includes a base 42 and a movable part 43. The bottom surface of the base 42 is provided with a contact surface 44. A flexible tube 50 is connected between the base 42 and the movable part 43. The base 42 and the movable part 43 are provided with cavities to communicate with the flexible tube 50 to form the ventilation channel. The movable part 43 is connected to the second chamber 2. The contact surface 44 is provided with an air inlet 51 of the ventilation channel. The movable part 43 is provided with an air outlet 52 of the ventilation channel to communicate with the second chamber 2. Thus, the base 42 and the movable part 43 can move relative to each other through the flexible tube 50 to form an air passage with a variable length, and always ensure the connectivity and external sealing of the air passage. This ensures that the second chamber 2 can reliably connect with the gas distribution guide rail 46 through the mating part 41 to form a stable air passage during the movement of the second chamber 2, thereby ensuring the reliability of vacuuming. Multiple ventilation outlets 52 of the ventilation channels can be provided on the active section 43 to increase the flow area and extract air from multiple points, which is conducive to more efficient vacuuming.

[0099] Furthermore, an elastic body 53 is provided between the base 42 and the movable part 43. Specifically, several elastic bodies 53 are provided, and the elastic bodies 53 can be springs. They are evenly distributed around the periphery of the flexible tube 50, so that the base 42 and the movable part 43 can float elastically and can be elastically reset. This allows them to flexibly adapt to the changes in the distance between the chamber 2 and the air distribution guide rail 46, and also protects the flexible tube 50, preventing excessive force on the flexible tube 50 when the base 42 and the movable part 43 move relative to each other. This ensures the long-term stability of the flexible tube 50 and its function as an air passage. To ensure sealing and connection stability, flanges are provided at both ends of the flexible tube 50. The ends of the flexible tube 50 are connected to the base 42 and the movable part 43 through the flanges. Preferably, the flexible tube 50 is a corrugated pipe, which has a stable structure, high strength, and can undergo elastic expansion and contraction deformation, making it less prone to damage. Furthermore, the movable part 43 is slidably engaged with the base 42, and a guide mechanism is provided between the movable part 43 and the base 42. Specifically, a protrusion is provided on the edge of the base 42, and guide strips are provided on both sides of the protrusion on the movable part 43. A guide groove is formed between the two guide strips. The protrusion slides along the guide groove to limit and guide the relative movement of the movable part 43 and the base 42. The structure is simple and easy to implement, making the relative movement between the movable part 43 and the base 42 more stable. In this embodiment, the flexible tube 50 is a relatively short pipe. The relative sliding direction of the movable part 43 and the base 42 defined by the guide mechanism is along the axial direction of the flexible tube 50, thereby avoiding unnecessary lateral impact force on the flexible tube 50 and ensuring that the mating part 41 can stably and reliably form a gas passage for vacuuming.

[0100] Furthermore, the contact surface 44 is made of a smooth and wear-resistant material, such as polytetrafluoroethylene or polyurethane, to ensure that the contact surface 44 can fully and tightly contact the surface of the air distribution guide 46, maintaining good sealing performance, thereby ensuring the reliability of vacuuming. It also features low frictional resistance, which helps reduce drive power consumption, good wear resistance, and a long service life. Moreover, the contact surface 44 is detachably connected to the base 42. As a consumable part, the contact surface 44 will wear after prolonged sliding contact with the air distribution guide 46. The detachable connection structure facilitates maintenance and replacement. Specifically, the contact surface 44 has several connection holes, and screws are used to connect the contact surface 44 to the base 42, ensuring a tight and stable connection while also facilitating replacement.

[0101] Therefore, in this embodiment, the clamping mechanism moves along with the second chamber 2, driven by the second conveying mechanism. The mating component 41 moves with the second chamber 2. When the mating component 41 reaches the air distribution guide rail 46 and its air inlet 51 is directly connected to the air hole 47 of the air distribution guide rail 46, the second conveying mechanism stops, the clamping mechanism stops at its current position, and the valve of the air hole 47 opens to allow vacuuming of the packaging bag through the second chamber 2. After a preset time for vacuuming, the valve of the air hole 47 closes, and the second conveying mechanism resumes its function to drive the second chamber 2 to continue moving. When the air inlet 51 of the mating component 41 is directly connected to the next air hole 47, the valve of the next air hole 47 opens to allow vacuuming of the packaging bag. The second chamber 2 performs vacuuming on the packaging bag, repeating this process to perform multi-station mobile vacuuming. The vacuuming time at each station is short, which can improve the overall processing efficiency. As the clamping mechanism moves from the previous air hole 47 position to the next air hole 47 position, the mating surface 44 of the mating part 41 is fully and tightly attached to the rail surface of the gas distribution guide 46. Due to the negative pressure adsorption effect, the rail surface of the gas distribution guide 46 blocks the air inlet 51 on the mating surface 44, so that the second chamber 2 and the packaging bag maintain their current vacuum state as they move. When they reach the next air hole 47 position, the vacuuming operation continues, effectively ensuring the reliability of vacuuming.

[0102] In some other embodiments, the vacuum pumping mechanism is arranged between track 23 and track 25. For example... Figure 31(The second chamber 2 is not shown). The vacuuming mechanism includes an air slip ring assembly. Several flexible tubes 56 are arranged circumferentially on the air slip ring 55 of the air slip ring assembly, and each flexible tube 56 is connected to the first chamber 1. Specifically, the vacuuming mechanism includes a stator 54 and an air slip ring 55. The air slip ring 55 and the stator 54 are rotatably coupled, and the air passages on the air slip ring 55 and the stator 54 remain connected when they rotate relative to each other. The air slip ring 55 is provided with multiple flexible tubes 56, and each flexible tube 56 is connected to the first chamber 1. Further, the first chamber 1 is provided with a first wheel group 57 and a second wheel group 58 arranged vertically. The first wheel group 57 is slidably coupled to a track 23, and the second wheel group 58 is coupled to tracks 24, 35, and 46. The end of the flexible tube 56 away from the air slip ring 55 is connected between the first wheel group 57 and the second wheel group 58. This structure helps to reduce the overall size of the machine and avoids a long movement path for the chamber 1 when switching from position 1 to position 2, or from position 3 to position 4. Therefore, by configuring an appropriate assembly position for the flexible tube 56, the structural compactness is effectively improved. The chamber 1 circulates along the track assembly; therefore, during the movement of the chamber 1, the driving air ring 55 rotates synchronously to prevent the flexible tube 56 from tangling. Furthermore, a rotating joint can be provided at the end of the flexible tube 56 to better prevent it from detaching or leaking air due to tangling. In other embodiments, such as... Figure 32 As shown, the vacuuming mechanism includes a one-way valve 59 mounted on chamber 1 or chamber 2, and an extraction pipe (not shown in the figure). The extraction pipe is located beside the parallel path section and can switch between the extraction position and the waiting position. When the extraction pipe is in the extraction position, it cooperates with the one-way valve 59. The axis of the extraction pipe is perpendicular to the parallel path section. The extraction pipe can be located on the outer side of the combined chamber, such as the front, back, left, or right side, similar to the one-way valve 59. The one-way valve 59 can restrict the entry of air from outside the combined chamber into the combined chamber, opening only through the extraction action of the extraction pipe, thus ensuring a good vacuum level in the combined chamber. Although there is a downtime waiting for vacuuming when using this structure, it is simple in structure, easy to use, and occupies a small volume, thus having the advantage of wide applicability. Understandably, in order to improve vacuuming efficiency, multiple combined chambers can be vacuumed at the same time. That is, when multiple combined chambers are located in a parallel path segment, multiple air extraction pipes can be set on one side of the parallel path segment to vacuum multiple combined chambers simultaneously.

[0103] The two storage units (1 and 2) move relative to each other to dock or separate, thereby completing the vacuuming and heat-sealing processes. Specifically, when storage units 1 and 2 dock, they form a closed combined storage unit. The packaging bag is located inside the combined storage unit. A vacuuming process is performed on the combined storage unit until a predetermined vacuum level is reached. Then, driven by the actuating mechanism 3, all heat-sealing mechanisms 4 operate simultaneously to achieve synchronous heat sealing of all packaging bags. After heat sealing, the combined storage unit separates into storage units 1 and 2, and the heat-sealed packaging bags are then sent out of the heat-sealing section. In this embodiment, the heat sealing mechanism 4 is entirely located within the housing 1, and the actuating components that drive the opening and closing of the heat sealing mechanism 4 are also entirely located within the housing 1. As for the linkage 5, only one end extends out of the housing 1 to form the driving part 6, which has a dynamic connection point with the housing 1. The driving part 6 can reciprocate relative to the housing 1 along the axis of the driving part 6, or it can rotate relative to the housing 1 around the axis of the driving part 6. In either case, it can be transmitted to the heat sealing mechanism 4 to achieve heat sealing of the opening of the packaging bag. In other words, the linkage 5 reciprocates along the arrangement direction of the heat sealing mechanism 4 to drive all the heat sealing mechanisms 4 to open and close synchronously, or the linkage 5 rotates around its own axis to drive all the heat sealing mechanisms 4 to open and close synchronously.

[0104] like Figures 3-5As shown in the figure, in this embodiment, the actuation component includes an opening / closing element 7, an opening / closing element 8, and a transmission element 9. The opening / closing element 7 and the opening / closing element 8 are slidably disposed within the chamber 1. The heat-sealing part 10 of the heat-sealing mechanism 4 is connected to the opening / closing element 7, and the heat-sealing part 11 of the heat-sealing mechanism 4 is connected to the opening / closing element 8. The transmission element 9 is disposed on the linkage 5 and moves with the linkage 5. The transmission element 9 cooperates with the opening / closing element 7 and / or the opening / closing element 8 to drive the opening / closing element 7 and the opening / closing element 8 to move towards each other, thereby opening and closing the heat-sealing mechanism 4. It should be noted that the accompanying drawings show two states of the heat-sealing mechanism 4, open and closed at the same time, which are only schematic representations of the action. In reality, all heat-sealing mechanisms 4 should open or close simultaneously at the same time. In this embodiment, the opening / closing element 7 carries the heat-sealing part 10, and the opening / closing element 8 carries the heat-sealing part 11. A crossbar 12 is provided in the chamber 1, and the crossbar 12 is perpendicular to the arrangement direction of the heat sealing mechanism 4. The opening / closing component 1 7 and the opening / closing component 2 8 are both slidably connected to the crossbar 12. Therefore, when the linkage 5 is activated, the transmission component 9 drives the opening / closing component 1 7 and the opening / closing component 2 8 to slide. It can be seen that in order to realize the opening and closing of the heat sealing part 10 and the heat sealing part 2 11, the opening / closing component 1 7 and the opening / closing component 2 8 move in opposite directions under the drive of the transmission component 9. Specifically, the sliding direction of the opening / closing component 1 7 and the opening / closing component 2 8 is perpendicular to the direction of the heat sealing mechanism 4. The heat sealing mechanism 4 is arranged in the direction described above. The linkage 5 reciprocates along the arrangement direction of the heat sealing mechanism 4. The transmission member 9 is provided with a guide part 13 that is at an angle to the direction of movement of the linkage 5. The opening and closing member 1 7 and the opening and closing member 2 8 are respectively provided with an actuating part 14 that slides with the guide part 13. Alternatively, the opening and closing member 1 7 and the opening and closing member 2 8 are respectively provided with a guide part 13 that is at an angle to the direction of movement of the linkage 5. The transmission member 9 is provided with an actuating part 14 that slides with the guide part 13. In this embodiment, the guide portion 13 is disposed on the transmission member 9, and the actuating portion 14 is disposed on the opening / closing member 7 and the opening / closing member 8. The guide portion 13 in this embodiment can be configured as a groove, specifically an inclined groove or a curved groove inclined to the direction of movement of the linkage member 5. Therefore, when the transmission member 9 moves with the linkage member 5, since the direction of movement of the guide portion 13 and the linkage member 5 is at an angle, the transmission member 9 can push and pull the actuating portion 14, thereby pushing and pulling the opening / closing member 7 and the opening / closing member 8 to achieve the opening and closing between the heat-sealing part 10 and the heat-sealing part 11. Furthermore, the guide portion 13 can be configured as an inclined surface, such as... Figure 6 and Figure 7As shown, the transmission component 9 includes an active component 15 that slides with the actuating part 14, and a return spring 16. Therefore, when the transmission component 9 operates, it can drive the opening / closing component 7 and the opening / closing component 8 to push open. When the transmission component 9 moves in the opposite direction, the return spring 16 can be used to close the opening / closing component 7 and the opening / closing component 8. Obviously, the movement of the transmission component 9 can also drive the opening / closing component 7 and the opening / closing component 8 to close, and the return spring 16 can be used to open the opening / closing component 7 and the opening / closing component 8. In the above technical solution, the transmission component 9 moves linearly with the linkage component 5. In this embodiment, the rotation of the transmission component 9 can also cause the opening / closing component 7 and the opening / closing component 8 to slide in the chamber 1 to achieve heat sealing. Specifically, as shown... Figure 8 As shown, the transmission component 9 is configured as a cam 17, which has an annular groove 18 that cooperates with the actuating part 14. Therefore, when the linkage 5 rotates, the cam 17 rotates, and the actuating part 14 achieves the opening and closing actions of the opening and closing parts 7 and 8 through sliding cooperation with the annular groove 18. Figure 9 As shown, the opening / closing component 7 and the opening / closing component 8 can also slide and engage with the outer circular surface of the cam 17. Similarly, during reset, the cam can be reset by the reset spring 16.

[0105] In another embodiment, the first opening / closing element 7 and the second opening / closing element 8 are rotatably disposed within the first compartment 1. In this embodiment, the linkage 5 rotates along itself to realize the rotation of the first opening / closing element 7 and the second opening / closing element 8, as shown below. Figure 10 As shown, the first opening / closing member 7 and the second opening / closing member 8 are engaged. The actuating member is configured as a rod connecting the linkage member 5. The actuating member connects the first opening / closing member 7 or the second opening / closing member 8. Therefore, when the linkage member 5 rotates around itself, it can drive the first opening / closing member 7 and the second opening / closing member 8 to rotate in opposite directions, thereby realizing the opening and closing between the first heat-sealing part 10 and the second heat-sealing part 11.

[0106] In the above embodiments, the opening and closing direction of the heat sealing mechanism 4 is perpendicular to the arrangement direction of the heat sealing mechanism 4. For example... Figure 11 As shown, in some embodiments, the opening and closing direction of the heat sealing mechanism 4 is arranged along the arrangement direction of the heat sealing mechanism 4. The opening and closing member 1 7 and the opening and closing member 2 8 slide along the arrangement direction of the heat sealing mechanism 4. The linkage member 5 is a rod with positive and negative threads 21. The opening and closing member 1 7 is screwed on the positive thread 20, and the opening and closing member 2 8 is screwed on the negative thread 21. Therefore, the rotation of the linkage member 5 can realize the opening and closing between the heat sealing part 1 10 and the heat sealing part 2 11.

[0107] It should be noted that in the above embodiments, the crossbar 12 is not shown in some of the drawings. However, it is obvious that in order to ensure the smooth and stable displacement of the heat-sealing part 10 and the heat-sealing part 2 11, the crossbar 12 is a preferred technical solution.

[0108] like Figures 3-5 As shown, in this embodiment, an elastic element 19 is provided between the first opening / closing component 7 and the first heat-sealing component 10, and an elastic element 19 is provided between the second opening / closing component 8 and the second heat-sealing component 11. The first opening / closing component 7, the first heat-sealing component 10, the second opening / closing component 8, and the second heat-sealing component 11 are all slidably mounted on the crossbar 12. Therefore, the first opening / closing component 7 and the first heat-sealing component 10, and the second opening / closing component 8 and the second heat-sealing component 11, can be adjusted and abutted against each other by the elastic element 19, thereby enabling each heat-sealing mechanism 4 to achieve a good heat-sealing action and controlling the clamping force provided by the heat-sealing mechanism 4 within a preset range to ensure the heat-sealing effect. It should be noted that in this embodiment, the first heat-sealing component 10 and the second heat-sealing component 11 seal the packaging bag through a heating plate. To avoid adhesion to the packaging bag due to heating, a non-woven fabric is also laid on the heating plate.

[0109] like Figure 1 , Figures 15-20 As shown, in this embodiment, the conveying mechanism one includes a track assembly for forming a preset path one; the track assembly includes track one 23, track two 24, track three 25, and track four 26 arranged sequentially along the preset circular conveying path; track two 24 is disposed on switching mechanism one 27 to switch between position one and position two driven by switching mechanism one 27. When track two 24 is in position one, track two 24 cooperates with track one 23 and is disconnected from track three 25. When track two 24 is in position two, track two 24 is disconnected from track one 23 and cooperates with track three 25; track four... Track 26 is mounted on switching mechanism 28 to switch between position 3 and position 4. When track 26 is in position 3, it engages with track 1 23 and disconnects from track 3 25. When track 26 is in position 4, it engages with track 1 23 and connects to track 3 25. The conveying mechanism 1 also includes a driving mechanism 1 mounted on track 1 23 to drive the chamber 1 mounted on the track assembly. The parallel path segment of the conveying mechanism 1 includes track 3 25, track 2 24 in position 2, and track 4 26 in position 4. Specifically, track 3 25 is a straight track, and track 1 23 can be one of a curved track and a straight track, or a combination of both. It should be noted that track 1 23, track 2 24, track 3 25, and track 4 26 all have corresponding connecting plates for installation. When the first compartment 1 is driven to the second track 24 by the drive mechanism, the second switching mechanism 28 can switch the second track 24 from the connecting track 1 23 to the connecting track 3 25 by tilting or extending, as follows: Figure 14As shown, when a linear reciprocating drive mechanism is used, the switching mechanism 1 27 and the switching mechanism 28 can be configured as a telescopic rod mechanism, a lead screw mechanism, or a rack and pinion mechanism, etc., and in this case, the track 1 23 is suitable to be configured as a linear track. Figure 1 and Figure 15 As shown, in this embodiment, the overall circular conveying path of the track assembly is triangular, and track 23 has an arc-shaped path segment; switching mechanism 27 drives track 24 to oscillate to switch between position 1 and position 2, and switching mechanism 28 drives track 4 to oscillate to switch between position 3 and position 4. That is, switching mechanism 27 drives track 24 to move along the arc-shaped path, and switching mechanism 28 drives track 4 to move along the arc-shaped path. Furthermore, switching mechanism 27 and switching mechanism 28 can be implemented by a disc mechanism, an eccentric motion mechanism, etc. Because tracks 24 and 46 have arc-shaped oscillating motion, the track volume can be further reduced compared to straight-line motion. After using the oscillating motion switching mechanism 1 27 / switching mechanism 28, the transmission efficiency is not affected. Furthermore, in this embodiment, tracks 24, 35, and 46 are all straight-line paths. Therefore, in order to ensure the accuracy of the docking between tracks and meet the smooth movement of the chamber 1, when track 24 docks with track 1 23, track 24 is tangent to track 1 23. The same applies to track 4 26 and track 1 23. At the same time, the same applies to track 24 and track 3 25, and track 4 26 and track 3 25.

[0110] like Figure 16 As shown, in this embodiment, the track assembly has multiple compartments 1. Each compartment 1 has a pushing part 30 on its front side in the direction of travel and a pushing part 31 on its rear side in the direction of travel. At least one compartment 1 is driven by a driving mechanism 1. Adjacent compartments 1 are pushed forward sequentially by the pushing part 31 abutting against the pushing part 30. This pushing method achieves re-driving, effectively realizing the driving effect. Furthermore, as... Figures 15-18 As shown, the drive mechanism includes an actuating assembly 32 and a transmission component 29. The actuating assembly 32 is driven by the transmission component 29 to reciprocate along the track 23, thus pushing the chamber 1 along the track assembly. The transmission component 29 can be a telescopic mechanism, a lead screw mechanism, a linear module, etc. Furthermore, as... Figure 18As shown, the actuating assembly 32 includes a base 34 that is drivenly connected to the transmission member 29, and an actuating member 35. The actuating member 35 is movably connected to the base 34 to switch between a working position and a clearance position. When the transmission member 29 drives the actuating assembly 32 to move forward, the actuating member 35 is in the working position to push the compartment 1 forward. When the transmission member 29 drives the actuating assembly 32 to move in the reverse direction, the actuating member 35 switches to the clearance position to avoid the compartment 1. In this embodiment, the transmission component 29 drives the actuating assembly 32 to reciprocate along the track 23. Therefore, when the actuating assembly 32 moves in the reverse direction along the preset path, it will come into contact with the compartment 1 behind the preset path, causing motion interference. Therefore, the actuating component 35 and the base 34 are hinged. That is, when the actuating component 35 contacts the compartment 1 behind the preset path, the actuating component 35 rotates relative to the base 34 to avoid the compartment 1 behind the preset path during the reverse movement. After avoiding the compartment, it is reset by the reset component 36. In some embodiments, the reset is achieved by the gravity of the actuating component 35 itself. In this case, a stop is provided on the base 34 to limit the movement of the actuating component 35. This also achieves the movement avoidance of the compartment 1 behind the preset path and the reset after avoidance. Thus, the switching method of the actuating component 35 between the working position and the avoidance position is simple and easy to implement, and can well meet the driving requirements of the compartment 1.

[0111] like Figure 19 and Figure 20 As shown, in another embodiment, the driving mechanism includes a second transmission component 37, which is a conveyor chain or conveyor belt. One of the transmission component 37 and the first compartment 1 has a protrusion 38, and the other has a mating portion 39 that engages with the protrusion 38. Compared to the above embodiment, this embodiment does not require pushing to move the first compartment 1. That is, when the driving mechanism includes the second transmission component 37, each first compartment 1 moves independently. Therefore, when the track assembly is triangular, it can prevent the first compartment 1 from sliding due to gravity on the downward path (track 24), thus avoiding the preset operating error of the first compartment 1 and also preventing collisions between adjacent first compartments 1.

[0112] The protrusion 38 is provided on the first compartment 1, thereby the mating part 39 is configured as the gap between two adjacent links. That is, when the first compartment 1 transitions from the fourth track 26 to the first track 23 and from the first track 23 to the second track 24, the protrusion 38 extends into the gap between the two adjacent links, thereby driving the first compartment 1 during the cyclic movement of the second transmission member 37.

[0113] like Figure 1As shown, in this embodiment, a power source 22 acting on the drive unit 6 is also included. The power source 22 moves along a preset path along the chamber body 1. The fixed end of the power source 22 is disposed on the chamber body 1 and connected to the drive unit 6 of the linkage 5 via a linkage mechanism. In some other embodiments, the power source 22 is disposed at a preset station on the preset path where the chamber body 1 moves. A heat sealing section is provided on the preset path. In one embodiment, such as... Figure 12A and Figure 12B As shown, the free end of the power source 22 and the drive unit 6 are slidably engaged. The power source 22 is fixed at a certain point in the heat sealing section. The chamber body 1 moves along a preset path to that point, where it achieves slid engagement with the power source 22, and then stops. Next, the power source 22 is started to perform the heat sealing action. After the heat sealing action is completed, the power source 22 resets, and the chamber body 1 continues to move along the preset path, thus separating the drive unit 6 and the power source 22. Figure 13 As shown, in another embodiment, the difference from the above embodiment is that the drive unit 6 of the power source 22 cooperates with the drive unit 6 by pushing and docking.

[0114] Therefore, when using the packaging machine of this embodiment, when the packaging machine needs to seal the packaging bag, it is generally necessary to vacuum the packaging bag to extend its shelf life. In this embodiment, the first chamber 1 moves to the third track 25 under the drive of the first drive mechanism. Similarly, the second chamber 2 moves to the parallel track section of the preset path 2 (parallel to the third track 25) under the drive of the second drive mechanism, so that the first chamber 1 located on the third track 25 and the second chamber 2 located on the parallel track section are connected. At this time, vacuuming is achieved through the air holes on the air distribution guide rail in the combined chamber. That is, the vacuuming action of the combined chamber is performed by the second chamber, and the air in the space between the first chamber 1 and the second chamber 2 is extracted to form a vacuum space, so that the first chamber 1 and the second chamber 2 are tightly bonded by negative pressure to form the combined chamber. The combined chamber is driven by the second drive mechanism. During the movement of the combined chamber, the opening of the packaging bag is heat-sealed by the heat sealing mechanism 4. It can be seen that this process is carried out after vacuuming is completed. Figure 1 As shown, this embodiment sets up a conveying track to form a preset path two for the second hopper 2. The second drive mechanism is configured as a gear chain component. The movement of the second hopper 2 or the combined hopper is realized through the gear chain component, thereby realizing vacuuming of the combined hopper and heat sealing of the packaging bag on the parallel path segment.

[0115] The above are merely preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be considered as limitations on the present invention, and the scope of protection of the present invention should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A packaging machine, characterized in that, include: A conveying mechanism 1, comprising a housing 1, wherein the conveying mechanism 1 drives the housing 1 to move along a preset path, and the housing 1 contains an actuating mechanism and at least two heat-sealing mechanisms arranged side-by-side; the actuating mechanism includes a linkage and an actuating assembly, the linkage extending along the arrangement direction of the heat-sealing mechanisms, the linkage being connected to each of the heat-sealing mechanisms via the actuating assembly to drive all the heat-sealing mechanisms to move synchronously, and the linkage extending out of the housing 1 to form a driving part; and The second conveying mechanism is provided with a second storage chamber. The second conveying mechanism drives the second storage chamber to move along a preset path. The second storage chamber is provided with a clamping mechanism for fixing the packaging bag. Among them, the preset path one and preset path two have parallel path segments that are parallel to each other, and the warehouse one and warehouse two connect in the parallel path segments to form a closed combined warehouse for travel. It also includes a vacuuming mechanism that performs vacuuming operations on the combined chambers in the parallel path segment; The vacuum pumping mechanism includes: A gas distribution guide rail, wherein the gas distribution guide rail is arranged along a parallel path segment, and a plurality of air holes are spaced apart on the rail surface; and The fitting component is provided on the second chamber. The fitting component is provided with a ventilation channel for communicating with the air hole. The ventilation channel is connected to the first chamber or the second chamber. It is also provided with a mating surface for conforming to the air distribution guide rail surface to travel along the air distribution guide rail. The ventilation inlet of the ventilation channel is provided on the mating surface. The valve guide rail is provided with transition rails at both ends. There is a preset height difference 1 between the rail surface of the transition rail and the rail surface of the valve guide rail. The mating component is provided with guide wheels for traveling along the transition rail. There is a preset height difference 2 between the traveling surface formed by the guide wheels and the mating surface. The preset height difference 1 is equal to the preset height difference 2. The mating component includes a base and a movable part. The bottom surface of the base is provided with the contact surface. A flexible tube is connected between the base and the movable part. The base and the movable part are provided with cavities to communicate with the flexible tube to form the ventilation channel. The movable part is connected to the second chamber. The contact surface is provided with the ventilation inlet of the ventilation channel. The movable part is provided with the ventilation outlet of the ventilation channel to communicate with the second chamber. The first conveying mechanism includes a track assembly for forming a preset path. The track assembly includes track one, track two, track three and track four arranged sequentially along a preset circular conveying path; The second track is mounted on the first switching mechanism so that it can switch between position one and position two. When the second track is in position one, it engages with the first track and disconnects from the third track. When the second track is in position two, it disconnects from the first track and engages with the third track. The fourth track is mounted on the second switching mechanism so that it can be switched between position three and position four by the second switching mechanism. When the fourth track is in position three, the fourth track is engaged with the first track and disconnected from the third track. When the fourth track is in position four, the fourth track is engaged with the first track and connected to the third track. The conveying mechanism also includes a drive mechanism disposed at one point on the track to drive the bin body disposed on the track assembly to move forward; The parallel path segment of the conveying mechanism one includes track three, track two at position two, and track four at position four. The overall circular transport path of the track assembly is triangular, and the first track has an arc-shaped path segment; The first switching mechanism drives the second track to swing to switch between position one and position two, and the second switching mechanism drives the fourth track to swing to switch between position three and position four.

2. The packaging machine as described in claim 1, characterized in that, The drive mechanism includes: The actuating assembly and the transmission component one are driven by the transmission component one to reciprocate along the track one, and the actuating assembly pushes the compartment one to move along the track assembly; Alternatively, the drive mechanism one includes: The second transmission component is a conveyor chain or conveyor belt. In the second transmission component and the first hopper, one has a protrusion and the other has a mating part that connects with the protrusion.

3. The packaging machine as described in claim 1, characterized in that, Also includes: A power source acting on the drive unit, the power source moving along a preset path with the chamber body; Alternatively, the power source may be located at a preset workstation on a preset path when the silo moves.

4. A packaging machine as described in claim 1, characterized in that, The linkage reciprocates along the arrangement direction of the heat sealing mechanism to drive all heat sealing mechanisms to open and close synchronously. Alternatively, the linkage may rotate around its own axis to drive all heat-sealing mechanisms to open and close synchronously.

5. A packaging machine as described in claim 1, characterized in that, The actuation component includes an opening / closing component one, an opening / closing component two, and a transmission component. The opening / closing component one and the opening / closing component two are slidably or rotatably disposed within the chamber body one. The heat sealing part one of the heat sealing mechanism is connected to the opening / closing component one, and the heat sealing part two of the heat sealing mechanism is connected to the opening / closing component two. The transmission component is disposed on the linkage component and moves with the linkage component. The transmission component cooperates with the opening / closing component one and / or the opening / closing component two to drive the opening / closing component one and the opening / closing component two to move towards each other, thereby opening and closing the heat sealing mechanism.

6. A packaging machine as described in claim 5, characterized in that, The sliding directions of the first and second opening / closing components are perpendicular to the arrangement direction of the heat sealing mechanism, and the linkage component reciprocates along the arrangement direction of the heat sealing mechanism. The transmission component is provided with a guide portion that is at an angle to the direction of movement of the linkage component. The first opening and closing component and the second opening and closing component are respectively provided with an actuating part that slides with the guide portion. Alternatively, the first opening and closing component and the second opening and closing component are respectively provided with a guide portion that is at an angle to the direction of movement of the linkage component, and the transmission component is provided with an actuating part that slides with the guide portion.

7. A packaging machine as described in claim 5, characterized in that, An elastic element is provided between the first opening / closing component and the first heat-sealing component, and an elastic element is provided between the second opening / closing component and the second heat-sealing component.

8. A packaging machine as described in claim 1, characterized in that, The opening and closing direction of the heat sealing mechanism is perpendicular to the arrangement direction of the heat sealing mechanism; Alternatively, the opening and closing direction of the heat sealing mechanism is set along the arrangement direction of the heat sealing mechanism.

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