Packaging box bagging machine

By introducing synchronously moving bag opening and lifting components into the packaging box bagging machine, the problem of low bagging efficiency has been solved, achieving a highly efficient bagging process and adapting to packaging boxes of different sizes.

CN223999875UActive Publication Date: 2026-03-17ZHEJIANG OUNO MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-02-05
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In existing packaging box bagging machines, the bagging mechanism can only work after the conveyor transports the packaging box to the bottom of the bagging mechanism, resulting in low bagging efficiency.

Method used

Design a packaging box bagging machine, including a packaging box conveying component and a bagging component. The bagging component includes a bag opening component and a lifting component. The bag opening is opened by the relative movement of the first and second gripping units in a second direction, and the packaging box is lifted by the lifting component so that the packaging bag is put into the packaging box, realizing the synchronous operation of the bagging component and the conveying component.

Benefits of technology

It improves bagging efficiency and can adapt to packaging boxes of different sizes, thus expanding its application range.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a packaging box bagging machine which comprises a packaging box conveying assembly and a bagging assembly. The packaging box conveying assembly extends in the first direction and conveys packaging boxes to the bagging station. The bagging assembly comprises a bag opening part and a lifting part; wherein the bag opening component is arranged above the bagging station in a manner of extending along a second direction; the lifting component is arranged on the bagging station and can move in the vertical direction. When the packaging box bagging machine is used, the bagging assembly and the packaging box conveying assembly act at the same time, the packaging box conveying assembly conveys a packaging box to a bagging station in the first direction, meanwhile, a bag opening component of the bagging assembly opens a bag opening of the packaging box, and then a lifting component lifts the packaging box conveyed to the bagging station; therefore, the bottom of the packaging bag enters the packaging box; therefore, when the packaging box bagging machine is used, the bagging assembly and the packaging box conveying assembly act at the same time, and the bagging efficiency of the packaging box is greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of packaging technology, specifically relating to a packaging box bagging machine. Background Technology

[0002] A packaging box bagging machine is an industrial automation device. When in use, packaging bags (such as plastic bags and non-woven bags) are inserted into the three-dimensional packaging box, which facilitates the packing of goods through the box. The packaging bags can prevent moisture and dust and protect the surface of the goods (such as fruits, bread, etc.), while reducing damage to the goods caused by friction during transportation.

[0003] The existing packaging box bagging machine includes a conveying mechanism and a bagging mechanism located above the conveying mechanism. The conveying mechanism transports the packaging box in a three-dimensional state to the bottom of the bagging mechanism, and the bagging mechanism works to put the packaging bag into the packaging box.

[0004] However, in the existing packaging box bagging machine, after the conveying mechanism transports the packaging box to the bottom of the bagging mechanism, the bag conveying device transports the folded bag from top to bottom. The bag enters the packaging box through the opening, so that the bag contacts the bottom wall of the packaging box. Then, the bagging mechanism opens the bag opening, allowing the bag opening to fit onto the side wall of the box opening, thus completing the bagging. After bagging, the bagging mechanism releases the bag, and the bag is then transported away by the conveying mechanism to perform the next bagging operation.

[0005] However, in the existing packaging box bagging machine, the bagging mechanism can only work after the conveying mechanism has transported the packaging box to the bottom of the bagging mechanism. The two cannot work synchronously, which will undoubtedly reduce the bagging efficiency of the packaging box. Utility Model Content

[0006] The purpose of this invention is to solve the problem in the existing packaging box bagging machine that, when in use, the packaging box needs to be transported to the bottom of the bagging mechanism by the conveying mechanism before the bagging mechanism can work, and the two cannot work at the same time, which reduces the bagging efficiency of the packaging box.

[0007] To address the aforementioned problems, this utility model provides a packaging box bagging machine, comprising a packaging box conveying assembly and a bagging assembly; wherein, the packaging box conveying assembly extends along a first direction to convey the packaging box to the bagging station; the bagging assembly includes a bag opening component and a lifting component; wherein, the bag opening component is disposed above the bagging station extending along a second direction, and includes a first gripping unit and a second gripping unit that can move relative to each other in the second direction; the lifting component is disposed on the bagging station and can move along the vertical direction.

[0008] In this process, the packaging box is conveyed to the bagging station, and the packaging bag is conveyed to the entrance of the bag opening component. The first gripping unit and the second gripping unit of the bag opening component respectively grip the corresponding edge of the bag opening on one side of the packaging bag conveyed to the entrance of the bag opening component and move relative to each other in opposite directions in a second direction, positioning the packaging bag with the bag opening opened above the bagging station. The lifting component lifts the packaging box conveyed to the bagging station and the bottom of the packaging bag enters the packaging box.

[0009] Using the above technical solution, when this packaging box bagging machine is in use, the bagging component and the packaging box conveying component operate simultaneously. While the packaging box conveying component transports the packaging box to the bagging station along the first direction, the bag opening component of the bagging component operates simultaneously. The first gripping unit and the second gripping unit respectively grip the corresponding edge of the bag opening at the inlet end of the bag opening component. Then, the first gripping unit and the second gripping unit move relative to each other in opposite directions in the second direction to open the bag opening, positioning the opened bag above the bagging station. At this time, the packaging box has been transported to below the bagging station. Then, the packaging box transported to the bagging station is raised, allowing the bottom of the packaging bag to enter the packaging box, thus allowing the packaging bag to be placed inside the packaging box, completing the bagging operation.

[0010] Therefore, it can be seen that when the packaging box bagging machine provided by this utility model is working, the bagging component and the packaging box conveying component operate simultaneously. When the packaging box conveying component transports the packaging bag to the bagging station, the bagging component has already completed the bag opening process. It is only necessary to move the packaging box upward to complete the bagging. Therefore, this undoubtedly greatly improves the bagging efficiency of the packaging box.

[0011] Furthermore, since this type of packaging box bagging machine can insert the packaging bag into the packaging box by lifting the lifting component during bagging, when the size of the packaging box changes, it is only necessary to change the travel of the lifting component and the size of the packaging bag to adapt to packaging boxes of different sizes. Therefore, this type of packaging box bagging machine also has the advantage of wide applicability.

[0012] In summary, this packaging box bagging machine operates with the bagging component and the packaging box conveying component simultaneously, greatly improving the bagging efficiency of the packaging boxes. When the size of the packaging box changes, only the travel distance of the lifting component and the size of the packaging bag need to be changed to adapt to packaging boxes of different sizes, and it also has the advantage of wide applicability.

[0013] Furthermore, the present invention also discloses a packaging box bagging machine, which includes a frame, a packaging box conveying assembly extending along a first direction and disposed on the frame, and the bagging assembly further includes a position adjustment component installed on the frame.

[0014] The bag opening component is mounted on the position adjustment component, which can move the bag opening component in the height direction of the frame.

[0015] Using the above technical solution, when the height of the packaging box is too high, it will interfere with the packaging bag being opened when the packaging box moves to the bagging station. When the height of the packaging box is too low, the excessive travel of the lifting component will reduce the bagging efficiency. Therefore, by setting a position adjustment component to adjust the position of the bag opening component in the height direction, on the one hand, the problem of interference between the packaging box and the packaging bag being opened when the packaging box is too high is avoided; on the other hand, the travel of the lifting component is reduced when the height of the packaging box is too low, thus improving the bagging efficiency.

[0016] Furthermore, the present invention also discloses a packaging box bagging machine, wherein the position adjustment component includes a drive adjustment component mounted on the machine frame and a connecting frame that is pulsatorically connected to the drive adjustment component, and the bag opening component is mounted on the connecting frame.

[0017] The connecting frame is movable along the height direction and is mounted on the frame. The driving adjustment component drives the connecting frame to move along the height direction, and the bag opening component moves along the height direction of the frame in conjunction with the connecting frame.

[0018] By adopting the above technical solution, when the height of the packaging box changes, the connecting frame can be moved along the height direction by driving the adjustment component, thereby causing the bag opening component to move along the height direction, thus changing the position of the bag opening component in the height direction, so that this packaging box bagging machine can adapt to packaging bags of different heights.

[0019] Furthermore, the present invention also discloses a packaging box bagging machine, wherein the first direction and the second direction are perpendicular to each other; the lifting component includes a pair of clamping units disposed on both sides of the packaging box conveying assembly in the second direction; each clamping unit includes a lifting member mounted on the frame and whose output end can move along the height direction, a translational driving member disposed at the output end of the lifting member and whose driving end can move along the second direction, and a clamping part that is pulsatorically connected to the driving end of the translational driving member.

[0020] In this process, the packaging box is transported to the bagging station. The translation drive component of each clamping unit drives the clamping part to move along the second direction and abut against the corresponding side of the packaging box to clamp the packaging box. The lifting component drives the translation drive component to move along the height direction and drives the clamping part to clamp the packaging box and move along the height direction.

[0021] Using the above technical solution, when bagging the packaging bag, the clamping parts of a pair of clamping units clamp the packaging box, and then the lifting component drives the clamping parts to move the packaging box upward along the height direction, thereby inserting the opened packaging bag into the packaging box. During this process, when the packaging box is clamped, the translation drive component of each clamping unit drives the clamping part to move along the second direction and abut against the corresponding side of the packaging box, thereby clamping the packaging box. When the size of the packaging box changes in the second direction, it is only necessary to change the movement stroke of the clamping part to adapt to the size of different packaging boxes in the second direction, further improving the applicability of this packaging box bagging machine.

[0022] Furthermore, the present invention also discloses a packaging box bagging machine, wherein the lifting component includes a mounting base extending in the height direction, the lower end of the mounting base is mounted on the frame on the corresponding side of the packaging box conveying component, and the upper end extends in the height direction as an output end.

[0023] The translation drive component includes a telescopic member with one end connected to the upper end of the mounting base and the other end extending toward the bagging station in a second direction; and the clamping part is configured as a clamping plate extending in a first direction, and the other end of the telescopic member is fixedly connected to the side of the clamping plate away from the bagging station.

[0024] Using the above technical solution, when the packaging box is conveyed to the bagging station by the packaging box conveying assembly, the other end of the telescopic component drives the corresponding clamping plate to move towards the bagging station in the second direction, thereby clamping the packaging box by the clamping plate; then, the upper end of the mounting base moves upward in the height direction, thereby inserting the opened packaging bag into the packaging box; during this process, by the clamping plate adhering to the corresponding side of the packaging box, the packaging box is clamped by pressing, reducing the risk of damage to the packaging box and shaking during movement.

[0025] Furthermore, the present invention also discloses a packaging box bagging machine, wherein the telescopic component includes a plurality of first guide rods arranged side by side, a movable seat slidably connected to the plurality of first guide rods, and a telescopic cylinder with one end fixedly installed on the movable seat and the other end extending along a second direction and fixedly connected to the side of the clamping plate away from the bagging station.

[0026] In this configuration, one end of each first guide rod is fixed to the upper end of the mounting base, and the other end extends toward the bagging station along the second direction; a snap-fit ​​device is provided between the movable base and at least one first guide rod. After the movable base moves and changes position along the second direction, the snap-fit ​​device snaps the movable base and at least one first guide rod into position.

[0027] By adopting the above technical solution, when the size of the packaging box changes significantly in the second direction, the movable seat can be moved and repositioned in advance along the second direction. The snap-fit ​​component will then snap the movable seat with at least one first guide rod to ensure that the movable seat will not move relative to the guide rod in the second direction. This also allows the clamping plate to be closer to the packaging box. As a result, after the packaging box is moved to the bagging station, only a telescopic cylinder is needed to drive the clamping plate to move a small distance to clamp the packaging box, which shortens the time the clamping plate holds the packaging box and further improves the bagging efficiency.

[0028] Furthermore, the present invention also discloses a packaging box bagging machine, wherein the bag opening component further includes a drive unit mounted on a connecting frame, and both the first gripping unit and the second gripping unit are mounted on the connecting frame; wherein the drive unit is transmissionally connected to at least one of the first gripping unit and the second gripping unit.

[0029] Furthermore, the packaging bag is conveyed to the inlet end of the bag opening component, and the first gripping unit and the second gripping unit respectively grip the periphery of the bag opening on the corresponding side of the packaging bag conveyed to the inlet end of the bag opening component. The driving unit drives the first gripping unit and / or the second gripping unit to move relative to each other in opposite directions along the second direction to open the bag opening.

[0030] Using the above technical solution, when the packaging bag is conveyed to the inlet end of the bag opening component, the first gripping unit and / or the second gripping unit can be driven by the drive unit to move opposite each other in the second direction to open the bag opening, so that the packaging bag can be conveniently put into the packaging box in the future.

[0031] Furthermore, the drive unit is connected to both the first gripping unit and the second gripping unit. When the packaging bag is conveyed to the inlet of the bag opening component, the drive unit can drive the first gripping unit and the second gripping unit to move in opposite directions along the second direction to open the bag opening, thereby improving the bag opening efficiency.

[0032] Furthermore, the present invention also discloses a packaging box bagging machine, which further includes a packaging bag conveying assembly, wherein the packaging bag conveying assembly includes a feeding component disposed on the frame and a conveying component mounted on the connecting frame.

[0033] Furthermore, in the vertical direction, the conveying component is located above the bag opening component, and the conveying component is used to transport the packaging bag placed on the feeding component from top to bottom in the vertical direction to the inlet end of the bag opening component.

[0034] Using the above technical solution, when the bag opening component opens the bag, the conveying component transports the packaging bag placed on the feeding component from top to bottom in the height direction to the inlet end of the bag opening component; then the packaging bag enters the bag opening component, and the bag opening component opens the bag opening.

[0035] In addition, by setting up a feeding component, packaging bags can be stored on the feeding component. When this packaging bagging machine is in use, the packaging bags stored on the feeding component only need to be transported to the inlet end of the bag opening component by the conveying component to start the bag opening operation. Moreover, during the bagging process, since the feeding component can store a large number of packaging bags, there is no need to frequently change the packaging bags.

[0036] Furthermore, the present invention also discloses a packaging box bagging machine. The bagging assembly further includes a heat sealing component and a cutting component arranged sequentially from top to bottom on the connecting frame along the height direction and located above the bagging station. The heat sealing component and the cutting component are both located above the bag opening component in the height direction.

[0037] The packaging bag conveying assembly conveys the folded packaging bag film through the heat sealing component, the cutting component, and the bag opening component in sequence. The heat sealing component heat seals the packaging bag film, and the cutting component cuts the packaging bag film to form a packaging bag. The first gripping unit and the second gripping unit respectively grip the corresponding side of the bag opening perimeter of the packaging bag conveyed to the inlet end of the bag opening component and open the packaging bag.

[0038] Using the above technical solution, when opening the packaging bag, the packaging bag conveying assembly conveys each folded packaging bag sequentially through the heat sealing component, the cutting component, and the opening component. When each packaging bag is conveyed to the heat sealing component, the heat sealing component heat seals the bottom of the corresponding packaging bag, forming a complete packaging bag. This avoids the risk that the bottom of the packaging bag will crack after being placed into the packaging box, thus preventing the items from being properly protected during subsequent storage. Then, the cutting component cuts two adjacent packaging bags, allowing them to be placed into the corresponding packaging boxes one by one. Finally, when the packaging bag is conveyed to the opening component, the first gripping unit and the second gripping unit respectively grip the corresponding edge of the bag opening at the entrance of the opening component, and then open the packaging bag, allowing it to be reliably placed into the packaging box.

[0039] Furthermore, the present invention also discloses a packaging box bagging machine. The bagging assembly further includes a limiting plate extending along a first direction and fixedly installed at both ends on a connecting frame and located above the bagging station, and a plurality of limiting pushers sequentially installed along the height direction on the connecting frame and located above the bagging station.

[0040] In the second direction, the heat-sealing component is located on one side of the limiting plate, and the cutting component is located on the other side of the limiting plate. The limiting plate has a strip-shaped opening extending along the first direction. The packaging bag conveying assembly conveys the folded packaging bag film through the limiting plate. Multiple limiting pushers limit and adhere the packaging bag film to one side of the limiting plate. The heat-sealing head of the heat-sealing component moves along the second direction to heat-seal the packaging bag film. The cutting blade of the cutting component moves along the second direction and cuts the packaging bag film through the strip-shaped opening to form a packaging bag.

[0041] Using the above technical solution, the packaging bag conveying assembly conveys the folded packaging bag film past the limiting plate. Multiple limiting pushers limit and adhere the packaging bag film to one side of the limiting plate, thereby limiting the packaging bag film. This ensures that the position of the packaging bag film will not shift when the heat sealing head of the heat sealing component heat seals the bottom of the packaging bag, and when the cutter of the cutting component cuts the packaging bag film to form individual packaging bags. This guarantees that the subsequent bag opening component can reliably open the bag opening, thereby placing the packaging bag into the packaging box.

[0042] In addition, by setting a strip opening, when the cutter of the cutting component cuts two adjacent packaging bags, the cutter of the cutting component moves in the second direction and cuts the packaging bag film through the strip opening to form a single packaging bag. During this process, the cutter of the cutting component will not come into contact with the limiting plate when cutting the packaging bag film, thereby reducing the risk of cutter wear.

[0043] Furthermore, the present invention also discloses a packaging box bagging machine, wherein a first limiting part and a second limiting part are sequentially arranged on the frame along a first direction; wherein, in the first direction, the first limiting part is located on the upstream side of the lifting component, the second limiting part is located on the downstream side of the lifting component, and both the first limiting part and the second limiting part can move along the height direction.

[0044] Using the above technical solution, since the packaging boxes are conveyed to the bagging station one by one for bagging during the bagging process, the first limiting part can limit the packaging box that has not yet entered the bagging station for bagging. After the packaging box being bagged is completed, it can enter the bagging station. The second limiting part can limit the packaging box conveyed to the bagging station, so that the packaging box is aligned with the packaging bag in the height direction when bagging. When the lifting component drives the packaging box to rise, the packaging bag can be accurately put into the packaging box.

[0045] Furthermore, an embodiment of this utility model also discloses a packaging box bagging machine, which further includes an air blowing assembly located downstream of the second limiting part in a first direction, and mounted on the frame and located above the packaging box conveying assembly; wherein, the air blowing assembly includes a lifting drive component mounted on the frame and moving in the height direction, a sealing plate that is pulsatorically connected to the lifting drive component, and an air blowing component mounted on the frame.

[0046] The sealing plate has at least one air inlet, and the air outlet of the blowing component is connected to each air inlet by a pipeline. When the bagged packaging box is transported to the bottom of the blowing component, the lifting drive component drives the sealing plate to move downward along the height direction to close the opening of the packaging box, and the blowing component blows air into the packaging box through the air inlet.

[0047] Using the above technical solution, when the bagged packaging box is conveyed along the first direction to the area below the air blowing component, the lifting drive component drives the sealing plate to move downward along the height direction, thereby sealing the opening of the packaging box. Then, the air blowing component blows air into the packaging box through the air inlet, so that after the gas enters the packaging bag, the gas squeezes the bag body, causing the packaging bag to adhere to the inner wall of the packaging box. During this process, since the opening of the packaging bag is sealed by the sealing plate, the risk of air leakage can be reduced, allowing the packaging bag to quickly adhere to the inner wall of the packaging box, thus improving the bagging quality.

[0048] Furthermore, the present invention also discloses a packaging box bagging machine, wherein the lifting drive component includes a first lifting drive component mounted on the frame that moves along the height direction, a connecting seat that is transmittedly connected to the drive end of the first lifting drive component, and a pair of second lifting drive components symmetrically mounted on both sides of the connecting seat along the second direction. The drive ends of the pair of second lifting drive components can both move along the height direction and are both fixedly connected to the sealing plate.

[0049] Furthermore, in the first direction, each of the second lifting drive components is symmetrically provided with a pair of second guide rods on both sides. Each second guide rod extends along the height direction, passes through the frame and the connecting seat, and is fixedly connected to the sealing plate. Each second guide rod is slidably connected to the frame and the connecting seat.

[0050] By adopting the above technical solution, when the size of the packaging box changes significantly in the second direction, the connecting seat can be moved along the height direction in advance by the first lifting drive component, and the sealing plate can be moved along the height direction to approach the packaging box by the second lifting drive component. This makes the sealing plate closer to the opening of the packaging box. As a result, after the packaging box moves to the bottom of the air blowing component, only a pair of second lifting drive components are needed to move the sealing plate a small distance along the height direction to close the opening of the packaging box. This shortens the time for the sealing plate to close the opening of the packaging box and further improves the air blowing efficiency of the air blowing component inside the packaging bag.

[0051] Furthermore, by symmetrically installing a pair of second lifting drive components on both sides of the connecting seat in the second direction, the sealing plate can move more synchronously on both sides in the second direction when the pair of second lifting drive components drive the sealing plate to move along the height direction; and, a pair of second guide rods are symmetrically arranged on both sides of each second lifting drive component, so that the sealing plate can be guided by the second guide rods when it moves, thus avoiding the problem of the sealing plate's position shifting.

[0052] Furthermore, the present invention also discloses a packaging box bagging machine, wherein a rubber pad is fixedly attached to the side of the sealing plate near the packaging box conveying assembly, and a pressure detection component is installed; wherein, when the sealing plate closes the opening of the packaging box, the pressure detection component is used to detect the pressure inside the packaging box.

[0053] By adopting the above technical solution, when a pair of second lifting drive components move the sealing plate downward along the height direction to close the opening of the packaging box, a rubber pad is provided on the side of the sealing plate near the packaging box conveying component, thereby reducing the risk of wear and tear on the packaging bag.

[0054] In addition, after the second lifting drive components move the sealing plate downwards along the height direction to close the opening of the packaging box, they can detect whether there is pressure inside the packaging bag through a pressure detection component. When the pressure inside the packaging bag is detected to be greater than the external pressure, it means that the packaging bag is completely fitted into the packaging box and has not fallen off, and can be used in subsequent packaging. When the pressure inside the packaging bag is detected to be equal to the external pressure, it means that the packaging bag is damaged or has fallen off after being fitted into the packaging box, and an alarm system will be triggered, and the packaging box will be discarded by the staff.

[0055] Furthermore, the present invention also discloses a packaging box bagging machine. The packaging box conveying assembly includes a conveying platform extending along a first direction and disposed on a frame, and a pair of limiting components. In the second direction, the pair of limiting components are located on both sides of the conveying platform. When the packaging box is placed on the conveying platform and conveyed along the first direction, the pair of limiting components respectively abut against the corresponding side of the box body in the second direction.

[0056] Using the above technical solution, the conveyor platform can support the packaging box in the height direction, allowing the box to be stably conveyed on the platform. Furthermore, a pair of limiting components abut against corresponding sides of the packaging box, thereby limiting the box's position and preventing the risk of displacement during transport.

[0057] Furthermore, the present invention also discloses a packaging box bagging machine, wherein a pair of limiting components are mounted on the frame and can move along a second direction, and the packaging box conveying assembly further includes a spacing adjustment component mounted on the frame and connected to each limiting component in a transmission manner; wherein the spacing adjustment component is used to adjust the interval distance between the pair of limiting components in the second direction.

[0058] By adopting the above technical solution, the spacing between a pair of limiting components in the second direction is adjusted by the spacing adjustment component, so that the pair of limiting components can adapt to packaging boxes of different sizes in the second direction. For example, when the size of the packaging box in the second direction decreases, the spacing adjustment component can drive a pair of clamping components to move towards each other in the width direction to limit the packaging box. Attached Figure Description

[0059] Figure 1 A schematic diagram of the overall structure of the packaging box bagging machine provided in an embodiment of this utility model from a single perspective;

[0060] Figure 2 A schematic diagram of the overall structure of the packaging box bagging machine provided in an embodiment of this utility model from another perspective;

[0061] Figure 3 A schematic diagram of the overall structure of the clamping unit of the packaging box bagging machine provided in this embodiment of the utility model;

[0062] Figure 4 A schematic diagram of the overall structure of the bagging assembly of the packaging box bagging machine provided in an embodiment of this utility model;

[0063] Figure 5 This is a schematic diagram of the overall structure of the bag-opening component provided in an embodiment of the present utility model;

[0064] Figure 6A partial structural schematic diagram of the bagging assembly of the packaging box bagging machine is provided for embodiments of this utility model;

[0065] Figure 7 This is a partial structural diagram of the air blowing component of a packaging box bagging machine, provided for an embodiment of the present utility model.

[0066] Explanation of reference numerals in the attached figures:

[0067] 1. Packaging box conveyor assembly;

[0068] 10. Conveying platform; 11. Limiting components; 13. Spacing adjustment components;

[0069] 2. Rack;

[0070] 20. First limiting part; 21. Second limiting part;

[0071] 3. Bagging assembly;

[0072] 30. Bag opening component;

[0073] 300. First grasping unit; 301. Second grasping unit; 302. Drive unit;

[0074] 31. Lifting components;

[0075] 310. Clamping unit; 311. Lifting component; 312. Translation drive component; 313. Clamping plate; 314. First guide rod; 315. Moving seat; 316. Telescopic cylinder; 317. Drive component;

[0076] 32. Position adjustment component;

[0077] 320. Drive adjustment component; 321. Connecting frame;

[0078] 33. Heat-sealing component; 34. Cutting component; 35. Limiting plate; 36. Limiting pusher;

[0079] 4. Air blowing assembly;

[0080] 40. Lifting drive components;

[0081] 400. First lifting drive component; 401. Connecting seat; 402. Second lifting drive component; 403. Second guide rod;

[0082] 41. Sealing plate;

[0083] 5. Packaging bag conveying assembly;

[0084] 50. Feeding component; 51. Conveying component;

[0085] L, first direction; W, second direction. Detailed Implementation

[0086] As described in the background art, in the prior art, when a packaging box bagging machine is in use, after the conveying mechanism transports the packaging box to the bottom of the bagging mechanism, the bag conveying device transports the folded bag from top to bottom. The bag enters the packaging box through the opening, so that the bag contacts the bottom wall of the packaging box. Then, the bagging mechanism opens the bag opening, allowing the bag opening to fit onto the side wall of the box opening, thus completing the bagging. After bagging is completed, the bagging mechanism releases the bag, which is then conveyed away by the conveying mechanism to perform the next bagging operation.

[0087] However, in the existing packaging box bagging machine, the bagging mechanism can only work after the conveying mechanism has transported the packaging box to the bottom of the bagging mechanism. The two cannot work synchronously, which will undoubtedly reduce the bagging efficiency of the packaging box.

[0088] To address the aforementioned problems, this utility model provides a packaging box bagging machine, comprising a packaging box conveying assembly and a bagging assembly; wherein, the packaging box conveying assembly extends along a first direction to convey the packaging box to the bagging station; the bagging assembly includes a bag opening component and a lifting component; wherein, the bag opening component is disposed above the bagging station extending along a second direction, and includes a first gripping unit and a second gripping unit that can move relative to each other in the second direction; the lifting component is disposed on the bagging station and can move along the vertical direction. When this packaging box bagging machine is in use, the bagging component and the packaging box conveying component operate simultaneously. The packaging box conveying component transports the packaging box to the bagging station along a first direction. At the same time, the bag opening component of the bagging component operates, with the first gripping unit and the second gripping unit respectively gripping the corresponding edge of the bag opening at the entrance end of the bag opening component. Then, the first gripping unit and the second gripping unit move opposite to each other in a second direction to open the bag opening and position the bag above the bagging station. Then, the lifting component lifts the packaging box transported to the bagging station, allowing the bottom of the packaging bag to enter the packaging box. Therefore, when this packaging box bagging machine is in use, the bagging component and the packaging box conveying component operate simultaneously, greatly improving the bagging efficiency of the packaging box.

[0089] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0090] First, let's introduce the overall structure of the packaging box bagging machine provided in this embodiment.

[0091] like Figure 1 and Figure 2As shown, this packaging box bagging machine includes a packaging box conveying assembly 1 and a bagging assembly 3; wherein, the packaging box conveying assembly 1 extends along a first direction L for conveying packaging boxes to the bagging station; the bagging assembly 3 includes a bag opening component 30 and a lifting component 31; wherein, the bag opening component 30 is arranged above the bagging station along a second direction W, and includes a first gripping unit 300 that can move relative to the bagging station in the second direction W (see...). Figure 5 ) and the second grasping unit 301 (see Figure 5 The lifting component 31 is installed on the bagging station and can move vertically.

[0092] Specifically, when this packaging box bagging machine is in use, the bagging component 3 and the packaging box conveying component 1 operate simultaneously. As the packaging box conveying component 1 transports the packaging box to the bagging station along the first direction L, the packaging bag is simultaneously transported to the inlet end of the bag opening component 30. The bag opening component 30 of the bagging component 3 then operates, and the first gripping unit 300 and the second gripping unit 301 respectively grip the corresponding side of the bag opening perimeter of the packaging bag transported to the inlet end of the bag opening component 30. Then, the first gripping unit 300 and the second gripping unit 301 move relative to each other in opposite directions along the second direction W to open the bag opening and position the opened packaging bag above the bagging station. At this time, the packaging box has been transported to the bottom of the bagging station. Then, the lifting component 31 lifts the packaging box transported to the bagging station, so that the bottom of the packaging bag enters the packaging box, thereby allowing the packaging bag to be placed inside the packaging box, completing the bagging operation.

[0093] It should be noted that the opening size of the packaging bag is larger than the opening size of the packaging box. Therefore, when the lifting component 31 raises the packaging box conveyed to the bagging station, after the bottom of the packaging bag enters the packaging box, the lifting component 31 needs to continue raising the packaging box so that the periphery of the packaging bag opening fits onto the periphery of the packaging box opening, preventing the packaging bag from falling off. Furthermore, although the opening size of the bag is larger than the size of the box opening when the bag is opened, the middle and bottom of the packaging bag are not fully opened. Therefore, during the upward movement of the packaging box, the packaging bag can be accurately fitted into the packaging box through the box opening.

[0094] Therefore, it can be seen that in operation, the bagging component 3 and the packaging box conveying component 1 of this utility model operate simultaneously. When the packaging box conveying component 1 conveys the packaging bag to the bagging station, the bagging component 3 has already completed the bag opening process. Only the packaging box needs to be moved upwards to complete the bagging. Therefore, this undoubtedly greatly improves the bagging efficiency of the packaging box. It should be understood that the packaging box can be a cardboard box, a plastic box, etc., and this embodiment does not limit this.

[0095] In addition, since this packaging box bagging machine can put the packaging bag into the packaging box by lifting the lifting component 31 when bagging, when the size of the packaging box changes, it is only necessary to change the travel of the lifting component 31 and the size of the packaging bag to adapt to packaging boxes of different sizes. Therefore, this packaging box bagging machine also has the advantage of wide applicability.

[0096] In summary, when this packaging box bagging machine is in use, the bagging component 3 and the packaging box conveying component 1 operate simultaneously, which greatly improves the bagging efficiency of the packaging box. When the size of the packaging box changes, only the travel of the lifting component 31 and the size of the packaging bag need to be changed to adapt to packaging boxes of different sizes. It also has the advantage of wide applicability.

[0097] Furthermore, in one embodiment, when the height of the packaging box is too high, it will interfere with the packaging bag being opened when the packaging box moves to the bagging station; when the height of the packaging box is too low, the travel distance of the lifting component 31 will be too long, reducing the bagging efficiency; therefore, as Figure 1 As shown, this packaging box bagging machine also includes a frame 2, a packaging box conveying assembly 1 extending along a first direction L and disposed on the frame 2, and a bagging assembly 3 also includes a position adjustment component 32 installed on the frame 2.

[0098] Specifically, the bag opening component 30 is mounted on the position adjustment component 32, and the position adjustment component 32 can move the bag opening component 30 in the height direction of the frame 2 in conjunction with the movement of the bag opening component 30.

[0099] More specifically, by setting the position adjustment component 32 to adjust the position of the bag opening component 30 in the height direction, on the one hand, it avoids the problem of interference between the packaging box and the packaging bag being opened when the packaging box is moved to the bagging station when the packaging box is too tall; on the other hand, it also reduces the travel of the lifting component 31 when the packaging box is too short, thereby improving the bagging efficiency.

[0100] Specifically, when the height of the packaging box is too high, the opening component 30 can be moved upward in the height direction of the frame 2 by the position adjustment component 32; when the height of the packaging box is too low, the opening component 30 can be moved downward in the height direction of the frame 2 by the position adjustment component 32.

[0101] The structure and arrangement of the position adjustment component 32 will be further explained below.

[0102] like Figure 1 and Figure 4 As shown, the position adjustment component 32 includes a drive adjustment member 320 mounted on the frame 2 and a connecting frame 321 that is drive-connected to the drive adjustment member 320. The bag opening component 30 is mounted on the connecting frame 321.

[0103] Specifically, the connecting frame 321 is movably mounted on the frame 2 along the height direction. The driving adjustment component 320 drives the connecting frame 321 to move along the height direction, and in conjunction with the bag opening component 30, moves along the height direction. It should be understood that the connection between the connecting frame 321 and the frame 2 can be achieved by setting a slide rail extending along the height direction on the frame 2, and then setting a slider on the connecting frame 321 to achieve the sliding connection between the connecting frame 321 and the frame 2; of course, other connection methods are also possible, such as the cooperation of a slide groove and a slider. This embodiment is not limited to this only method.

[0104] More specifically, when the height of the packaging box changes, the connecting frame 321 can be moved along the height direction by driving the adjusting component 320, thereby causing the bag opening component 30 to move along the height direction, thus changing the position of the bag opening component 30 in the height direction, so that this packaging box bagging machine can adapt to packaging bags of different heights.

[0105] More specifically, the structure and arrangement of the drive adjustment component 320 are not limited, and those skilled in the art can design it according to their own needs. The following is an example.

[0106] In one embodiment, the drive adjustment member 320 includes a handwheel and a screw, wherein the screw extends along the height direction and one end is rotatably connected to the frame 2, and the other end extends upward along the height direction. The first wheel is fixedly installed at the other end of the screw, and the screw passes through the connecting frame 321 and is threadedly connected to the connecting frame 321. By rotating the handwheel, the connecting frame 321 is moved along the screw in the height direction to adjust the position of the bag opening member 30 in the height direction.

[0107] In another embodiment, the drive adjustment component 320 includes a pair of lifting cylinders corresponding to the two ends of the connecting frame 321 in the first direction L. One end of the pair of lifting cylinders is fixedly installed on the frame 2, and the other end extends along the height direction and is fixedly connected to the connecting frame 321. The other end of the lifting cylinder can move along the height direction, thereby driving the connecting frame 321 to move along the height direction through the pair of lifting cylinders, so as to adjust the position of the bag opening component 30 in the height direction.

[0108] Furthermore, the structure and arrangement of the bagging assembly 3 will be explained in more detail below.

[0109] First, the structure and arrangement of the lifting component 31 will be explained.

[0110] In one implementation, such as Figure 1 and Figure 3As shown, the first direction L and the second direction W are perpendicular to each other; the lifting component 31 includes a pair of clamping units 310 disposed on both sides of the packaging box conveying assembly 1 in the second direction W; each clamping unit 310 includes a lifting component 311 mounted on the frame 2 and whose output end can move along the height direction, a translation drive component 312 disposed at the output end of the lifting component 311 and whose drive end can move along the second direction W, and a clamping part that is pulsatorically connected to the drive end of the translation drive component 312.

[0111] In this process, the packaging box is transported to the bagging station. The translation drive component 312 of each clamping unit 310 drives the clamping part to move along the second direction W and abut against the corresponding side of the packaging box to clamp the packaging box. The lifting component 311 drives the translation drive component 312 to move along the height direction and drives the clamping part to clamp the packaging box to move along the height direction.

[0112] Specifically, when bagging the packaging bag, the clamping parts of a pair of clamping units 310 clamp the packaging box, and then the lifting component 311 drives the clamping parts to move the packaging box upward along the height direction, thereby inserting the opened packaging bag into the packaging box. During this process, when the packaging box is clamped, the translation drive component 312 of each clamping unit 310 drives the clamping part to move along the second direction W and abut against the corresponding side of the packaging box, thereby clamping the packaging box. When the size of the packaging box in the second direction W changes, only the movement stroke of the clamping part needs to be changed to adapt to the size of different packaging boxes in the second direction W, further improving the applicability of this packaging box bagging machine.

[0113] It should be noted that the first direction L and the second direction W can be perpendicular to each other or parallel to each other. This embodiment describes the packaging box bagging machine in the case that the first direction L and the second direction W can be perpendicular to each other. Furthermore, when the first direction L and the second direction W are parallel to each other, a pair of clamping units 310 are arranged on both sides of the packaging box conveying assembly 1 along the width direction of the frame 2.

[0114] More specifically, the structure and arrangement of the lifting component 311, the translation drive component 312, and the clamping part are not limited, and examples are given below.

[0115] In one embodiment, the lifting component 311 includes a mounting base extending in the height direction, the lower end of which is mounted on the frame 2 on the corresponding side of the packaging box conveying component 1, and the upper end extending in the height direction as an output end.

[0116] The translation drive component 312 includes a telescopic member with one end connected to the upper end of the mounting base and the other end extending toward the bagging station in the second direction W; and the clamping part is configured as a clamping plate 313 extending in the first direction L, and the other end of the telescopic member is fixedly connected to the side of the clamping plate 313 away from the bagging station.

[0117] Specifically, when the packaging box is conveyed to the bagging station by the packaging box conveying assembly 1, the other end of the telescopic component drives the corresponding clamping plate 313 to move towards the bagging station in the second direction W, so that the packaging box is clamped by the clamping plate 313; then, the upper end of the mounting base moves upward in the height direction, so as to put the opened packaging bag into the packaging box; in this process, by the clamping plate 313 adhering to the corresponding side of the packaging box, the packaging box is clamped by pressing, reducing the risk of damage to the packaging box and shaking during movement.

[0118] It should be understood that, in order to enable the upper end of the mounting base to move along the height direction, the frame 2 is also provided with a drive component 317 that is connected to the upper end of the mounting base. The drive component 317 is used to drive the upper end of the mounting base to move along the height direction.

[0119] In one embodiment, the drive unit 317 includes a drive motor mounted on the frame 2, a transmission wheel fixedly sleeved on the drive end of the drive motor, and a transmission belt extending along the height direction on the frame 2 and connected to the transmission wheel; and the upper end of the mounting base is connected to the transmission belt; the drive motor drives the transmission wheel to rotate and drives the transmission belt to move along the height direction, thereby causing the upper end of the mounting base to move along the height direction.

[0120] In addition, the drive component 317 can also be configured as a lifting cylinder, an electric telescopic push rod, etc., and this embodiment does not limit it to a single type.

[0121] Furthermore, the lifting component 311 can also be configured in other ways. For example, the lifting component 311 can be configured as a lifting cylinder, electric push rod, etc., whose drive end can move along the height direction. In this case, one end of the telescopic component is fixedly installed on the drive end of the lifting component 311. Those skilled in the art can design according to their own needs, and this embodiment is not limited to a single one.

[0122] More specifically, the structure and arrangement of the telescopic components are not limited, and those skilled in the art can design them according to their own needs.

[0123] In one embodiment, the telescopic component includes a plurality of first guide rods 314 arranged side by side, a movable seat 315 slidably connected to the plurality of first guide rods 314, and a telescopic cylinder with one end fixedly installed on the movable seat 315 and the other end extending along a second direction W and fixedly connected to the side of the clamping plate 313 away from the bagging station.

[0124] Specifically, one end of each first guide rod 314 is fixed to the upper end of the mounting base, and the other end extends toward the bagging station along the second direction W; a snap-fit ​​device is provided between the movable base 315 and at least one first guide rod 314. After the movable base 315 moves and changes position along the second direction W, the snap-fit ​​device snaps the movable base 315 and at least one first guide rod 314 into position.

[0125] More specifically, when the dimensions of the packaging box change significantly in the second direction W, the movable seat 315 can be moved and repositioned in advance along the second direction W. The snap-fit ​​component then snaps the movable seat 315 into position with at least one first guide rod 314, thereby ensuring that the movable seat 315 will not move relative to the guide rod along the second direction W. This also allows the clamping plate 313 to be closer to the packaging box. As a result, after the packaging box is moved to the bagging station, only the telescopic cylinder 316 needs to drive the clamping plate 313 to move a small distance to clamp the packaging box, thus shortening the time that the clamping plate 313 holds the packaging box and further improving the bagging efficiency.

[0126] It should be noted that the snap-fit ​​component can be a snap-fit ​​nut, snap-fit ​​block, etc., and this embodiment does not limit it to a single component.

[0127] The structure and arrangement of the bag opening component 30 will be further explained below.

[0128] In one implementation, such as Figure 5 As shown, the bag opening component 30 also includes a drive unit 302 mounted on a connecting frame 321. Both the first gripping unit 300 and the second gripping unit 301 are mounted on the connecting frame 321. The drive unit 302 is driveably connected to at least one of the first gripping unit 300 and the second gripping unit 301. The drive unit 302 can be driveably connected to the first gripping unit 300, or it can be driveably connected to both the first gripping unit 300 and the second gripping unit 301; this embodiment does not impose any limitations on this connection.

[0129] Specifically, the packaging bag is conveyed to the inlet end of the bag opening component 30, and the first gripping unit 300 and the second gripping unit 301 respectively grip the periphery of the bag opening on the corresponding side of the packaging bag conveyed to the inlet end of the bag opening component 30. The driving unit 302 drives the first gripping unit 300 and / or the second gripping unit 301 to move relative to each other in opposite directions along the second direction W to open the bag opening.

[0130] More specifically, when the packaging bag is conveyed to the inlet end of the bag opening component 30, the first gripping unit 300 and / or the second gripping unit 301 can be driven by the drive unit 302 to move opposite each other along the second direction W to open the bag opening, so that the packaging bag can be conveniently put into the packaging box later.

[0131] Preferably, the drive unit 302 is connected to both the first gripping unit 300 and the second gripping unit 301. When the packaging bag is conveyed to the inlet end of the bag opening component 30, the drive unit 302 can drive the first gripping unit 300 and the second gripping unit 301 to move away from each other along the second direction W to open the bag opening, thereby improving the bag opening efficiency.

[0132] It should be noted that the drive unit 302 can also be connected to the first gripping unit 300. In this case, when the packaging bag is conveyed to the inlet end of the bag opening component 30, the drive unit 302 drives the first gripping unit 300 to move along the first direction L, thereby causing the first gripping unit 300 and the second gripping unit 301 to move relative to each other along the second direction W to open the bag opening. Of course, the drive unit 302 can also be connected to the second gripping unit 301. This embodiment does not limit which gripping unit the drive unit 302 is specifically connected to, and those skilled in the art can design it according to their own needs.

[0133] Furthermore, the structure and arrangement of the first grasping unit 300, the second grasping unit 301, and the driving unit 302 are not limited.

[0134] For example, in one embodiment, the first gripping unit 300 is configured as a pair of first gripping heads that are movably mounted on the frame 2, and the second gripping unit 301 is configured as a pair of second gripping heads that are movably mounted on the frame 2. In the first direction L, the pair of first gripping heads and the pair of second gripping heads are spaced apart on the connecting frame 321. The driving unit 302 includes a pair of first driving cylinders mounted on the connecting frame 321 and corresponding one-to-one with the pair of first gripping heads, and a pair of second driving cylinders mounted on the connecting frame 321 and corresponding one-to-one with the pair of second gripping heads.

[0135] Specifically, the drive end of each first drive cylinder is driven and connected to the corresponding first clamping head, and each first drive cylinder is used to drive the corresponding first clamping head to move along the second direction W; the drive end of each second drive cylinder is driven and connected to the corresponding second clamping head, and each second drive cylinder is used to drive the corresponding second clamping head to move along the second direction W.

[0136] More specifically, when opening the bag, a pair of first drive cylinders drive a pair of first clamping heads to move toward the packaging bag along the second direction W, and a pair of second drive cylinders drive a pair of second clamping heads to move toward the packaging bag along the second direction W, thereby clamping the corresponding side of the packaging bag. Then, a pair of first drive cylinders drive a pair of first clamping heads to move away from the packaging bag along the second direction W, and a pair of second drive cylinders drive a pair of second clamping heads to move away from the packaging bag along the second direction W, thereby opening the bag opening.

[0137] Alternatively, the first gripping unit 300 can be configured as multiple first suction nozzles movably mounted on the connecting frame 321, and the second gripping unit 301 can be configured as multiple second suction nozzles movably mounted on the connecting frame 321. When opening the bag, the multiple suction nozzles suck up one side of the corresponding packaging bag, and then move to open the bag. It should be understood that the number of multiple first suction nozzles and multiple second suction nozzles can be 2, 3, 5, etc., and this embodiment does not impose a unique limitation.

[0138] Furthermore, in one implementation, such as Figures 4-6 As shown, the bagging assembly 3 also includes a heat-sealing component 33 and a cutting component 34, which are arranged sequentially from top to bottom on the connecting frame 321 along the height direction and located above the bagging station. Both the heat-sealing component 33 and the cutting component 34 are located above the bag opening component 30 in the height direction.

[0139] Specifically, the packaging bag conveying assembly 5 conveys the folded packaging bag film through the heat sealing component 33, the cutting component 34, and the bag opening component 30 in sequence. The heat sealing component 33 heat seals the packaging bag film, and the cutting component 34 cuts the packaging bag film to form a packaging bag. The first gripping unit 300 and the second gripping unit 301 respectively grip the corresponding side of the bag opening perimeter of the packaging bag conveyed to the inlet end of the bag opening component 30 and open the packaging bag.

[0140] More specifically, when opening the packaging bag, the packaging bag conveying assembly 5 conveys each folded packaging bag sequentially through the heat sealing component 33, the cutting component 34, and the opening component 30. At this time, when each packaging bag is conveyed to the heat sealing component 33, the heat sealing component 33 heat seals the bottom of the corresponding packaging bag to form a complete packaging bag, avoiding the risk that the bottom of the packaging bag will crack after being put into the packaging box, which would result in the items not being able to protect the items when they are placed in the box. Then the cutting component 34 cuts two adjacent packaging bags so that the packaging bags can be put into the corresponding packaging boxes one by one. Finally, when the packaging bag is conveyed to the opening component 30, the first gripping unit 300 and the second gripping unit 301 respectively grip the periphery of the corresponding side of the bag opening of the packaging bag conveyed to the entrance end of the opening component 30, and then open the packaging bag so that the packaging bag can be reliably put into the packaging box.

[0141] More specifically, the structure and arrangement of the heat-sealing component 33 are not limited, and those skilled in the art can design it according to their own needs. The following is an example.

[0142] In one embodiment, the heat sealing component 33 includes a drive cylinder mounted on the connecting frame 321 and whose drive end can move along the second direction W, and a heat sealing head that is drively connected to the drive end of the drive cylinder; when heat sealing, the telescopic cylinder drives the heat sealing head to move along the second direction W toward the packaging bag film, thereby heat sealing the packaging bag film.

[0143] In another embodiment, the heat sealing component 33 includes a linear motor mounted on the connecting frame 321 and whose drive end can move along the second direction W, and a heat sealing plate connected to the drive end of the linear motor; when heat sealing, the linear motor drives the heat sealing plate to move along the second direction W toward the packaging bag film, thereby heat sealing the packaging bag film.

[0144] More specifically, the mechanism and arrangement of the cutting component 34 are not limited, and those skilled in the art can design it according to their own needs. The following is an example.

[0145] In one embodiment, the cutting component 34 includes a telescopic cylinder mounted on the connecting frame 321 and whose drive end can move along the second direction W, and a cutting blade connected to the drive end of the telescopic cylinder; when cutting, the telescopic cylinder drives the cutting blade to move along the second direction W toward the packaging bag film, thereby cutting the packaging bag film.

[0146] In another embodiment, the cutting component 34 includes an electric push rod mounted on the connecting frame 321 and whose drive end is movable in the second direction W, and a pressure knife connected to the drive end of the electric push rod; when cutting, the electric push rod drives the pressure knife to move in the second direction W, thereby cutting the packaging bag film.

[0147] Furthermore, in one embodiment, the bagging assembly 3 further includes a limiting plate 35 extending along the first direction L and fixedly mounted at both ends on the connecting frame 321 and located above the bagging station, and a plurality of limiting pushers 36 sequentially mounted along the height direction on the connecting frame 321 and located above the bagging station.

[0148] Specifically, in the second direction W, the heat-sealing component 33 is located on one side of the limiting plate 35, and the cutting component 34 is located on the other side of the limiting plate 35. The limiting plate 35 has a strip-shaped opening extending along the first direction L. The packaging bag conveying assembly 5 conveys the folded packaging bag film through the limiting plate 35. Multiple limiting pushers 36 limit and adhere the packaging bag film to one side of the limiting plate 35. The heat-sealing head of the heat-sealing component 33 moves along the second direction W to heat-seal the packaging bag film. The cutting blade of the cutting component 34 moves along the second direction W and cuts the packaging bag film through the strip-shaped opening to form a packaging bag. It should be understood that the number of limiting pushers 36 can be 2, 3, 5, etc., and this embodiment does not impose a unique limitation.

[0149] More specifically, by using multiple limiting pushers 36 to limit and adhere the packaging bag film to one side of the limiting plate 35, the position of the packaging bag film will not shift when the heat sealing head of the heat sealing component 33 heat seals the bottom of the packaging bag and when the cutter of the cutting component 34 cuts the packaging bag film to form a single packaging bag. This ensures that the subsequent bag opening component 30 can reliably open the bag opening and put the packaging bag into the packaging box.

[0150] Furthermore, by setting a strip opening, when the cutter of the cutting component 34 cuts two adjacent packaging bags, the cutter of the cutting component 34 moves along the second direction W and cuts the packaging bag film through the strip opening to form a single packaging bag. During this process, the cutter of the cutting component 34 will not come into contact with the limiting plate 35 when cutting the packaging bag film, thereby reducing the risk of cutter wear.

[0151] It should be noted that multiple limiting pushers 36 can move along the second direction W. During heat sealing and cutting, multiple limiting pushers 36 move towards the packaging bag film along the second direction W to achieve the limiting function. After heat sealing and cutting are completed, the packaging bag will be released, and the bag will be opened by the bag opening component 30.

[0152] The structure and configuration of the packaging box conveying assembly 1 will be further explained below.

[0153] In one implementation, such as Figure 2 As shown, the packaging box conveying assembly 1 includes a conveying platform 10 extending along the first direction L and disposed on the frame 2, and a pair of limiting members 11, and in the second direction W, the pair of limiting members 11 are located on both sides of the conveying platform 10; wherein, after the packaging box is placed on the conveying platform 10, when it is conveyed along the first direction L, the pair of limiting members 11 respectively abut against the corresponding side of the box body of their respective packaging box in the second direction W.

[0154] Specifically, the conveyor platform 10 can support the packaging box in the height direction, allowing the packaging box to be stably conveyed on the conveyor platform 10. In addition, a pair of limiting components 11 are respectively attached to the corresponding side of the packaging box body, thereby limiting the packaging box through the pair of limiting components 11, thus avoiding the risk of the packaging box shifting during the conveying process.

[0155] More specifically, the structure and arrangement of the limiting component 11 are not limited. For example, it can be a limiting plate 35 or a limiting seat that extends along the first direction L and is disposed on the frame 2. This embodiment does not make specific limitations here.

[0156] It should be noted that when the first direction L and the second direction W are parallel to each other, a pair of limiting components 11 are arranged on both sides of the packaging box conveying assembly 1 along the width direction of the frame 2.

[0157] In addition, there are various ways to set up the transportation method of the packaging box. This embodiment does not make specific limitations here. The following examples will be used for illustration.

[0158] Optionally, in one embodiment, a conveyor belt movable along a first direction L is provided on the conveying platform 10, and the packaging box is then conveyed by the conveyor belt.

[0159] Optionally, in another embodiment, the conveying platform 10 includes a plurality of conveying rollers arranged side by side along the first direction L, and a drive motor mounted on the frame 2. Both ends of the plurality of conveying rollers are rotatably connected to the frame 2, and the drive end of the drive motor is drivenly connected to one end of each conveying roller. When the packaging box is placed on the conveying platform 10, the conveying rollers are driven to rotate by the drive motor, thereby realizing the conveying of the packaging box.

[0160] Furthermore, in one embodiment, a pair of limiting members 11 are mounted on the frame 2, each movable along the second direction W. The packaging box conveying assembly 1 also includes a spacing adjustment member 13 mounted on the frame 2 and drivenly connected to each limiting member 11; wherein the spacing adjustment member 13 is used to adjust the spacing distance between the pair of limiting members 11 in the second direction W.

[0161] Specifically, the spacing between a pair of limiting members 11 in the second direction W is adjusted by the spacing adjustment member 13, so that the pair of limiting members 11 can adapt to packaging boxes of different sizes in the second direction W. For example, when the size of the packaging box in the second direction W decreases, the spacing adjustment member 13 can drive a pair of clamping members to move towards each other in the width direction to limit the packaging box.

[0162] More specifically, the structure and arrangement of the spacing adjustment component 13 are not limited, and this embodiment does not limit them. The following is an example description.

[0163] In one embodiment, the spacing adjustment component 13 includes a screw arranged along the second direction W and rotatably connected to the frame 2 at both ends, a drive handwheel fixedly installed at one end of the screw, and a first transmission rod and a second transmission rod spaced apart on the screw along the second direction W; and the screw has a positive thread section and a negative thread section formed thereon. In the height direction, one end of the first transmission rod is threaded to the positive thread section, and the other end is fixedly connected to one of the corresponding pair of limiting components 11; one end of the second transmission rod is threaded to the negative thread section, and the other end is fixedly connected to the other of the corresponding pair of limiting components 11.

[0164] Specifically, when it is necessary to change the distance between a pair of limiting components 11, the drive handwheel can be rotated in the forward or reverse direction to make the screw rotate, thereby adjusting the spacing between the pair of limiting components 11 in the second direction W.

[0165] Optionally, in another embodiment, the spacing adjustment component 13 includes a pair of linear motors mounted on the frame 2 and corresponding one-to-one with a pair of limiting components 11 and connected in a transmission manner. The driving end of each linear motor can move along the second direction W. Each linear motor is used to drive the corresponding limiting component 11 to move along the second direction W, thereby changing the spacing distance between the pair of limiting components 11 in the second direction W.

[0166] The following explains how the packaging bags are transported.

[0167] In one implementation, such as Figure 2 and Figure 4 As shown, the packaging box bagging machine also includes a packaging bag conveying assembly 5, wherein the packaging bag conveying assembly 5 includes a feeding component 50 disposed on the frame 2 and a conveying component 51 mounted on the connecting frame 321.

[0168] Specifically, in the height direction, the conveying component 51 is located above the bag opening component 30, and the conveying component 51 is used to convey the packaging bag placed on the feeding component 50 from top to bottom in the height direction to the inlet end of the bag opening component 30.

[0169] More specifically, when the bag opening component 30 opens the bag, the conveying component 51 conveys the packaging bag placed on the feeding component 50 from top to bottom in the height direction to the inlet end of the bag opening component 30; then the packaging bag enters the bag opening component 30, and the bag opening component 30 opens the bag opening.

[0170] In addition, by setting up the feeding component 50, packaging bags can be stored on the feeding component 50. When this packaging bagging machine is in use, the packaging bags stored on the feeding component 50 only need to be conveyed to the inlet end of the bag opening component 30 by the conveying component 51 to perform the bag opening operation. Moreover, during the bagging process, since the feeding component 50 can store a large number of packaging bags, there is no need to frequently change the packaging bags.

[0171] More specifically, the structure and arrangement of the feeding component 50 and the conveying component 51 are not limited, and this embodiment does not limit them. The following is an example description.

[0172] In one embodiment, the feeding component 50 includes a feeding roller mounted on the frame 2 and a feeding roller arranged on the frame 2 and rotatably connected to the frame 2. The conveying component 51 includes a pair of conveying rollers arranged opposite to each other on the connecting frame 321 in the second direction W and rotatably connected to the connecting frame 321 at both ends, and a drive motor mounted on the connecting frame 321 and drivenly connected to the pair of conveying rollers. In use, the packaging bag is rolled up on the feeding roller, and then the feeding roller conveys one end of the packaging bag to the two conveying rollers. Then the packaging bag is clamped by the pair of conveying rollers, and then the drive motor drives the pair of conveying rollers to rotate and convey the packaging bag from top to bottom in the height direction to the inlet end of the bag opening component 30.

[0173] It is important to understand that when the feeding roller is winding up the packaging bags, multiple packaging bags are wound on the feeding roller, and these bags are connected to each other; for example, the number of packaging bags may be 100, 150, or 300. Of course, the feeding roller can also wind up the packaging bag film. In this case, a drive motor is needed to drive a pair of conveyor rollers to rotate and transport the packaging bag film from top to bottom in the vertical direction, passing through the heat sealing component 33 and the cutting component 34 before entering the bag opening component 30.

[0174] Furthermore, in one implementation, such as Figure 1 As shown, since the packaging boxes are transported to the bagging station one by one for bagging during the bagging process, a first limiting part 20 and a second limiting part 21 are sequentially arranged on the frame 2 along the first direction L. In the first direction L, the first limiting part 20 is located upstream of the lifting component 31, and the second limiting part 21 is located downstream of the lifting component 31. Both the first limiting part 20 and the second limiting part 21 can move along the height direction.

[0175] Specifically, by setting the first limiting part 20, the packaging box that has not yet entered the bagging station can be limited. After the packaging box being bagged is completed, it can enter the bagging station. The second limiting part 21 can limit the packaging box that is transported to the bagging station, so that the packaging box is directly aligned with the packaging bag in the height direction when the packaging box is being bagged. When the lifting part 31 drives the packaging box to rise, the packaging bag can be accurately put into the packaging box.

[0176] More specifically, the structure and arrangement of the first limiting part 20 and the second limiting part 21 are not limited, and this embodiment does not limit them. The following is an example description.

[0177] In one embodiment, the first limiting part 20 includes a first lifting cylinder mounted on the frame 2 and whose drive end can move along the height direction, and a first blocking plate fixedly mounted on the drive end of the first lifting cylinder; the second limiting part 21 includes a second lifting cylinder mounted on the frame 2 and whose drive end can move along the height direction, and a second blocking plate fixedly mounted on the drive end of the second lifting cylinder; the positioning of the packaging box is achieved by driving the first blocking plate to move in the height direction by the first driving cylinder and driving the second blocking plate to move in the height direction by the second driving cylinder.

[0178] Furthermore, in one implementation, such as Figure 1 and Figure 7 As shown, to ensure that the packaging bag fits better against the inner wall of the packaging box after being placed inside, this packaging box bagging machine also includes an air blowing assembly 4 located downstream of the second limiting part 21 in the first direction L, mounted on the frame 2, and above the packaging box conveying assembly 1. The air blowing assembly 4 includes a lifting drive component 40 mounted on the frame 2 and moving along the height direction, a sealing plate 41 connected to the lifting drive component 40, and an air blowing component (not shown in the figure) mounted on the frame 2. It should be understood that the structure and arrangement of the air blowing component are not limited; it can be an air pump, air blower, etc., and this embodiment does not impose a single limitation.

[0179] Specifically, the sealing plate 41 has at least one air inlet, and the air outlet of the blowing component is connected to each air inlet via a pipeline. When the bagged packaging box is transported to the bottom of the blowing assembly 4, the lifting drive component 40 drives the sealing plate 41 to move downwards along the height direction to close the opening of the packaging box, and the blowing component blows air into the packaging box through the air inlets. It should be understood that the number of air inlets can be 1, 2, 4, etc., and this embodiment does not limit it to a single number.

[0180] More specifically, when the bagged packaging box is conveyed along the first direction L to the area below the air blowing assembly 4, the lifting drive component 40 drives the sealing plate 41 to move downward along the height direction, thereby sealing the opening of the packaging box. Then, the air blowing component blows air into the packaging box through the air inlet, so that after the gas enters the packaging bag, the gas squeezes the bag body, causing the packaging bag to adhere to the inner wall of the packaging box. During this process, since the opening of the packaging bag is sealed by the sealing plate 41, the risk of air leakage can be reduced, allowing the packaging bag to quickly adhere to the inner wall of the packaging box, thus improving the bagging quality.

[0181] More specifically, the structure and arrangement of the lifting drive component 40 are not limited.

[0182] In one embodiment, the lifting drive component 40 includes a first lifting drive member 400 that moves along the height direction and is mounted on the frame 2, a connecting seat 401 that is drively connected to the drive end of the first lifting drive member 400, and a pair of second lifting drive members 402 that are symmetrically mounted on both sides of the connecting seat 401 along the second direction W. The drive ends of the pair of second lifting drive members 402 can both move along the height direction and are both fixedly connected to the sealing plate 41.

[0183] Furthermore, in the first direction L, each second lifting drive component 402 is symmetrically provided with a pair of second guide rods 403 on both sides. Each second guide rod 403 extends along the height direction, passes through the frame 2 and the connecting seat 401, and is fixedly connected to the sealing plate 41. Each second guide rod 403 is slidably connected to the frame 2 and the connecting seat 401.

[0184] Specifically, when the dimensions of the packaging box change significantly in the second direction W, the connecting seat 401 can be moved along the height direction by the first lifting drive component 400 in advance, and the sealing plate 41 can be moved along the height direction to approach the packaging box by the second lifting drive component 402. This makes the sealing plate 41 closer to the opening of the packaging box. As a result, after the packaging box moves to the bottom of the air blowing component 4, only a pair of second lifting drive components 402 need to drive the sealing plate 41 to move a small distance along the height direction to achieve the sealing plate 41 to close the opening of the packaging box. This shortens the time for the sealing plate 41 to close the opening of the packaging box, thereby further improving the air blowing efficiency of the air blowing component inside the packaging bag.

[0185] Furthermore, by symmetrically installing a pair of second lifting drive components 402 on both sides of the connecting seat 401 in the second direction W, the two sides of the sealing plate 41 in the second direction W can move more synchronously when the pair of second lifting drive components 402 drive the sealing plate 41 to move in the height direction; and, a pair of second guide rods 403 are symmetrically arranged on both sides of each second lifting drive component 402, so that the sealing plate 41 can be guided by the second guide rods 403 when it moves, thus avoiding the problem of the sealing plate 41 shifting position.

[0186] More specifically, the structure and arrangement of the first lifting drive component 400 are not limited. For example, it can be a drive screw, a telescopic push rod, etc. This embodiment does not limit it to a single type, and those skilled in the art can design it according to their own needs.

[0187] More specifically, the structure and arrangement of the second lifting drive component 402 are not limited. For example, it can be a telescopic cylinder, a lifting cylinder, etc. This embodiment does not limit it to a single type, and those skilled in the art can design it according to their own needs.

[0188] Furthermore, in one embodiment, a rubber pad is fixedly attached to the side of the sealing plate 41 near the packaging box conveying assembly 1, and a pressure detection component is installed thereon; wherein, when the sealing plate 41 closes the opening of the packaging box, the pressure detection component is used to detect the pressure inside the packaging box.

[0189] Specifically, when a pair of second lifting drive components 402 move the sealing plate 41 downward in the height direction to close the opening of the packaging box, the risk of the packaging bag being worn can be reduced by providing a rubber pad on the side of the sealing plate 41 near the conveying component.

[0190] More specifically, after the pair of second lifting drive components 402 drive the sealing plate 41 to move downwards along the height direction to close the opening of the packaging box, they can detect whether there is pressure inside the packaging bag through a pressure detection component. When the pressure inside the packaging bag is detected to be greater than the external pressure, it means that the packaging bag is completely fitted into the packaging box and has not fallen off, and can be used in subsequent packaging. When the pressure inside the packaging bag is detected to be equal to the external pressure, it means that the packaging bag is damaged or the packaging bag has fallen off after being fitted into the packaging box, and an alarm can be triggered through the alarm system, and the staff will discard the packaging box.

[0191] More specifically, the structure and arrangement of the pressure detection component are not limited; for example, it can be a pressure detector, a pressure sensor, etc. This embodiment does not limit it to a single type.

[0192] The above description illustrates the implementation of this utility model through specific embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model is presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0193] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0194] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0195] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0196] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0197] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

Claims

1. A carton sleeving machine characterised in that, The application relates to a packaging box conveying assembly and a bagging assembly. The packaging box conveying assembly extends along a first direction to convey the packaging box to a bagging station. The bagging assembly comprises an opening bag component and a lifting component; the opening bag component extends along a second direction above the bagging station and comprises a first grabbing unit and a second grabbing unit which can move relative to each other along the second direction; the lifting component is arranged on the bagging station and can move along a vertical direction; wherein The packaging box is conveyed to the bagging station, and a packaging bag is conveyed to an entrance end of the opening bag component; the first grabbing unit and the second grabbing unit of the opening bag component respectively grab a corresponding side bag opening edge of the packaging bag conveyed to the entrance end of the opening bag component and move relative to each other along the second direction, so that the packaging bag with the bag opening opened is positioned above the bagging station, and the lifting component lifts the packaging box conveyed to the bagging station, and the bottom of the packaging bag enters the packaging box. The application further relates to a rack, the packaging box conveying assembly is arranged on the rack along the first direction, and the bagging assembly further comprises a position adjusting component mounted on the rack; wherein 2. The packaging box sleeving bag machine of claim 1, characterized in that, The opening bag component is arranged on the position adjusting component, and the position adjusting component can drive the opening bag component to move along the height direction of the rack. The position adjusting component comprises a driving adjusting member mounted on the rack and a connecting frame in transmission connection with the driving adjusting member, and the opening bag component is mounted on the connecting frame; wherein 3. The packaging box sleeving bag machine of claim 2, characterized in that, The connecting frame is movably mounted on the rack along the height direction, and the driving adjusting member drives the connecting frame to move along the height direction of the rack and drives the opening bag component to move along the height direction. The first direction and the second direction are perpendicular to each other; 4. The packaging box sleeving bag machine of claim 3, characterized by, The lifting component comprises a pair of clamping units arranged on both sides of the packaging box conveying assembly along the second direction; each clamping unit comprises a lifting member mounted on the rack and having an output end which can move along the height direction, a translation driving member arranged on the output end of the lifting member and having a driving end which can move along the second direction, and a clamping part in transmission connection with the driving end of the translation driving member; wherein The packaging box is conveyed to the bagging station, the translation driving member of each clamping unit drives the clamping part to move along the second direction and abuts against a corresponding side of the packaging box to clamp the packaging box, and the lifting member drives the translation driving member to move along the height direction and drives the clamping part to move the packaging box along the height direction. In each clamping unit:

5. The packaging box sleeving bag machine of claim 4, characterized in that, The lifting member comprises a mounting seat extending along the height direction, the lower end of the mounting seat is mounted on the rack on a corresponding side of the packaging box conveying assembly, and the upper end of the mounting seat as the output end can extend along the height direction; the translation driving member comprises an extension piece in transmission connection with the upper end of the mounting seat at one end and extending along the second direction towards the bagging station at the other end; and ​ ​ The clamping part is arranged as a clamping plate extending along the first direction, and the other end of the telescopic member is fixedly connected to a side of the clamping plate away from the bagging station.

6. The packaging box sleeving bag machine of claim 5, wherein The telescopic member comprises a plurality of first guide rods arranged side by side, a moving seat slidably connected to the plurality of first guide rods, and a telescopic cylinder having one end fixedly installed on the moving seat and the other end extending along the second direction and fixedly connected to a side of the clamping plate away from the bagging station; wherein, One end of each of the first guide rods is fixed to the upper end of the mounting seat, and the other end extends along the second direction towards the bagging station; a clamping member is arranged between the moving seat and at least one of the first guide rods, and the clamping member clamps and positions the moving seat and at least one of the first guide rods after the moving seat changes position along the second direction.

7. The packaging box sleeving bagging machine according to claim 3, characterized by The bag opening component further comprises a driving unit installed on the connecting frame, and the first grabbing unit and the second grabbing unit are both installed on the connecting frame; wherein, The driving unit is in transmission connection with at least one of the first grabbing unit and the second grabbing unit, and; The packaging bag is conveyed to the inlet end of the bag opening component, the first grabbing unit and the second grabbing unit respectively grab the corresponding side bag opening periphery of the packaging bag conveyed to the inlet end of the bag opening component, and the driving unit drives the first grabbing unit and / or the second grabbing unit to move opposite to each other along the second direction to open the bag opening of the packaging bag.

8. The packaging box sleeving bagging machine according to claim 3, characterized by Further comprising a packaging bag conveying assembly, wherein, The packaging bag conveying assembly comprises a feeding component arranged on the rack, and a conveying component installed on the connecting frame; and, In the height direction, the conveying component is located above the bag opening component, and the conveying component is used to convey the packaging bag placed on the feeding component from top to bottom in the height direction to the inlet end of the bag opening component.

9. The packaging box sleeving bagging machine according to claim 8, characterized by, The bagging assembly further comprises a heat sealing component and a cutting component arranged in sequence on the connecting frame in the height direction and located above the bagging station, and the heat sealing component and the cutting component are both located above the bag opening component in the height direction; wherein, The packaging bag conveying assembly conveys the packaging bag film in a folded state through the heat sealing component, the cutting component, and the bag opening component in sequence, the heat sealing component seals the packaging bag film, the cutting component cuts the packaging bag film to form the packaging bag, and the first grabbing unit and the second grabbing unit respectively grab the corresponding side bag opening periphery of the packaging bag conveyed to the inlet end of the bag opening component and open the packaging bag.

10. The packaging box sleeving bag machine of claim 9, characterized by, The bagging assembly further comprises a limiting plate arranged in extension along the first direction and fixedly installed on both ends of the connecting frame and located above the bagging station, and a plurality of limiting push heads installed in sequence on the connecting frame in the height direction and located above the bagging station; wherein, In the second direction, the heat sealing component is located on one side of the limiting plate, the cutting component is located on the other side of the limiting plate, and a strip-shaped opening extending along the first direction is formed on the limiting plate; and The packaging bag conveying assembly conveys the packaging bag film in a folded state through the limiting plate, a plurality of limiting push heads limit and fit the packaging bag film on one side of the limiting plate, the heat sealing head of the heat sealing component moves along the second direction to heat seal the packaging bag film, and the cutting tool of the cutting component moves along the second direction and cuts the packaging bag film through the strip-shaped opening to form the packaging bag.

11. The packaging box sleeving bagging machine according to any one of claims 2-10, characterized by, Along the first direction, the rack is sequentially provided with a first limiting part and a second limiting part; wherein In the first direction, the first limiting part is located on the upstream side of the lifting component, and the second limiting part is located on the downstream side of the lifting component, and both the first limiting part and the second limiting part can move along the height direction.

12. The packaging box sleeving bag machine of claim 11, characterized by, Further comprising a blowing assembly located on the downstream side of the second limiting part in the first direction and installed on the rack above the packaging box conveying assembly; wherein The blowing assembly comprises a lifting driving component installed on the rack and moving along the height direction, a sealing plate in transmission connection with the lifting driving component, and a blowing component installed on the rack; wherein At least one air inlet is formed on the sealing plate, and the air outlet of the blowing component is in pipeline communication with each air inlet; when the completed packaging box is conveyed below the blowing assembly, the lifting driving component drives the sealing plate to move downward along the height direction to close the box opening of the packaging box, and the blowing component blows air into the packaging box through the air inlet.

13. The packaging box sleeving bag machine of claim 12, characterized by, The lifting driving component comprises a first lifting driving member installed on the rack and moving along the height direction, a connecting seat in transmission connection with the driving end of the first lifting driving member, a pair of second lifting driving members symmetrically installed on both sides of the connecting seat along the second direction, the driving end of each second lifting driving member can move along the height direction and is fixedly connected with the sealing plate; and In the first direction, a pair of second guide rods is symmetrically arranged on both sides of each second lifting driving member, each second guide rod extends through the rack, the connecting seat and is fixedly connected with the sealing plate along the height direction, and each second guide rod is in sliding connection with the rack and the connecting seat.

14. The packaging box sleeving bag machine according to claim 13, characterized in that, The side of the sealing plate close to the packaging box conveying assembly is further fixedly fitted with a rubber pad and is installed with a pressure detection component; wherein When the sealing plate closes the box opening of the packaging box, the pressure detection component is used to detect the pressure in the packaging box.

15. The packaging box sleeving bag machine of claim 4, characterized by, The packaging box conveying assembly comprises a conveying platform extending along the first direction and arranged on the rack, and a pair of limiting components, and in the second direction, the pair of limiting components correspondingly located on both sides of the conveying platform; wherein When the packaging box is placed on the conveying platform and is conveyed along the first direction, the pair of limiting components respectively abut corresponding sides of the box body of the packaging box in the second direction.

16. The packaging box sleeving bag machine of claim 15, wherein, The packaging box conveying assembly further comprises a spacing adjusting component mounted on the rack and in transmission connection with each limiting component. The spacing adjusting component is configured to adjust the interval distance of the pair of limiting components in the second direction.