A box sealing device

Abstract

This utility model provides a box sealing device, including: a box pusher, a box packing station, a box storage station, a glue spraying and sealing station, and a pressure holding station; the box pusher is used to push the packaging box from the box packing station to the box storage station; the box packing station is equipped with a rear folding mechanism for folding the rear flap of the packaging box; the box storage station is equipped with a front folding mechanism, an upper guide mechanism, and a lower guide mechanism; the front folding mechanism is used to fold the front flap of the packaging box at the box packing station; when the packaging box is pushed from the box packing station to the box storage station, the upper and lower guide mechanisms respectively abut against its upper and lower flaps, forming a preliminary fold; the glue spraying and sealing station is equipped with a glue spraying mechanism, an upper sealing mechanism, and a lower sealing mechanism; the glue spraying mechanism is used to spray glue onto the upper or lower flap of the packaging box, and the upper and lower sealing mechanisms respectively fold the upper and lower flaps to seal the box; a synchronous belt conveyor is provided from the glue spraying and sealing station to the pressure holding station; the pressure holding station is equipped with a pressure holding mechanism for sealing and pressurizing the packaging box.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a box sealing device. Background Technology

[0002] In the logistics packaging and manufacturing sectors, box sealing is a crucial process connecting product packing with subsequent warehousing and transportation. Its efficiency and quality directly impact the production capacity output of the entire production line. With the rapid development of e-commerce and manufacturing, the market has placed higher demands on the automation and processing efficiency of the packaging process, and traditional box sealing methods are no longer sufficient to meet the needs of large-scale production.

[0003] Currently, some small and medium-sized enterprises still rely on manual labor for box sealing, which not only requires a significant investment in manpower but also results in inconsistent folding, glue spraying, and pressing actions, leading to problems such as insecure sealing and uneven glue application. Even when using semi-automatic or fully automatic box sealing equipment, the functional stations of most devices are scattered and poorly spaced, and the timing and coordination of the box pushing and conveying mechanisms are mismatched, making it difficult to carry out processes such as folding pretreatment, glue spraying and sealing, and pressure holding in parallel.

[0004] This results in significant pauses when packaging boxes move between workstations, extending the sealing cycle for a single box. Additionally, there are many manual intervention steps, making it impossible to achieve fully automated closed-loop operation and hindering the improvement of production efficiency. Therefore, there is an urgent need for a highly efficient sealing device with a compact layout and smooth process connections. Utility Model Content

[0005] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to provide a box-sealing device that has a simple structure, enables parallel operation, and helps improve production efficiency.

[0006] To achieve the above objectives, this utility model proposes a box sealing device, which includes: a box pusher head, and a box packing station, a box storage station, a glue spraying and sealing station, and a pressure holding station arranged sequentially along the box conveying direction. The box pusher is used to push the packaging boxes at the packing station to the storage station; The packing station is equipped with a back folding mechanism, which is used to fold the back flap of the packaging box; The storage box station is equipped with a front folding mechanism, an upper guide mechanism, and a lower guide mechanism. The front folding mechanism is used to fold the front flap of the packaging box at the packing station. During the process of pushing the packaging box from the packing station to the storage box station, the upper guide mechanism and the lower guide mechanism can abut against the upper flap and the lower flap of the packaging box one by one, so that the upper flap and the lower flap of the packaging box form a preliminary fold. The glue spraying and sealing station is equipped with a glue spraying mechanism, an upper sealing mechanism, and a lower sealing mechanism. The glue spraying mechanism is used to spray glue onto the upper or lower flaps of the packaging box. The upper sealing mechanism and the lower sealing mechanism fold and seal the upper and lower flaps of the packaged box after glue spraying in a one-to-one correspondence. The adhesive spraying and sealing station to the pressure holding station is provided with a synchronous belt conveyor mechanism. The synchronous belt conveyor mechanism includes an upper conveyor belt assembly and a lower conveyor belt assembly, which are used to contact the top and bottom of the packaging box one by one to transport the sealed packaging box to the pressure holding station. The pressure holding station is equipped with a pressure holding mechanism, which is used to press against the sealing part of the packaging box to maintain pressure at the sealing part.

[0007] According to an embodiment of this utility model, a carton sealing device establishes an efficient workstation connection system through a carton pusher and a synchronous belt conveyor mechanism. The carton pusher is responsible for pushing the packaging boxes from the packing station to the storage station and from the storage station to the glue spraying and sealing station. The synchronous belt conveyor mechanism realizes the smooth transport of the sealed packaging boxes to the pressure holding station, forming a seamless flow channel. The device integrates functions such as folding, glue spraying, sealing, and pressure holding into a compact layout. Each workstation mechanism has a clear division of labor and can operate in parallel. When the pressure holding station is performing pressing processing, the packing station, storage station, and glue spraying and sealing station can simultaneously carry out material feeding and sealing operations. This design significantly shortens the single-box processing cycle, avoids the flow stoppage problem of traditional devices, and significantly improves production efficiency while improving the stability of sealing quality, meeting the automation needs of large-scale production.

[0008] In addition, the box sealing device proposed in the above embodiments of this utility model may also have the following additional technical features: Optionally, it also includes a box-entry guide rod, which is disposed above the box-packing station and the box-storage station.

[0009] Optionally, the synchronous belt conveyor mechanism includes a lifting drive assembly connected to the upper conveyor belt assembly and the upper sealing mechanism to adjust the height of the upper conveyor belt assembly and the upper sealing mechanism.

[0010] Furthermore, the lifting drive assembly includes a first drive motor, a chain, a transmission screw, and a sliding pair. The upper conveyor belt assembly and the upper sealing mechanism are connected to the moving end of the sliding pair. The transmission screw is threadedly connected to the upper conveyor belt assembly, and the chain connects the transmission screw and the first drive motor.

[0011] Optionally, the pressure holding mechanism includes a pressure holding plate and a first moving drive member, the first moving drive member being connected to the pressure holding plate to drive the pressure holding plate to extend or retract.

[0012] Furthermore, the pressure-holding mechanism also includes a first screw adjustment member, and the first moving drive member is installed at the output end of the first screw adjustment member so that the height of the first moving drive member is adjustable.

[0013] Optionally, the upper guide mechanism includes an upper guide rod and a first lifting drive for driving the upper guide rod to rise and fall, and the lower guide mechanism includes a lower guide rod and a second lifting drive for driving the lower guide rod to rise and fall.

[0014] Optionally, the front folding mechanism includes a front folding plate, a second moving drive member, a second screw adjusting member, and a third screw adjusting member. The front folding plate is mounted on the output end of the second moving drive member, the second moving drive member is mounted on the output end of the second screw adjusting member to make the height of the second moving drive member adjustable, and the second screw adjusting member is mounted on the output end of the third screw adjusting member to adjust the front and rear positions of the second screw adjusting member.

[0015] Optionally, the rear folding mechanism includes a rear folding plate, a third moving drive component, a fourth screw adjusting component, and a fourth moving drive component. The rear folding plate is installed at the output end of the third moving drive component so that the rear folding plate tilts and abuts against the rear flap of the packaging box. The third moving drive component is installed at the output end of the fourth screw adjusting component so that the height of the third moving drive component is adjustable. The fourth screw adjusting component is installed at the output end of the fourth moving drive component so that the rear folding plate vertically abuts against the rear flap of the packaging box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a box sealing device according to an embodiment of the present utility model; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 for Figure 1 Another structural diagram from a different perspective; Explanation of reference numerals in the attached figures: Packing Station 1, Storage Station 2, Adhesive Sealing Station 3, Pressure Holding Station 4, Front Folding Mechanism 5, Front Folding Plate 51, Second Moving Drive Component 52, Second Screw Adjustment Component 53, Third Screw Adjustment Component 54, Rear Folding Mechanism 6, Rear Folding Plate 61, Third Moving Drive Component 62, Fourth Screw Adjustment Component 63, Fourth Moving Drive Component 64, Upper Guide Mechanism 7, Upper Guide Rod 71, First Lifting Drive Component 72, Lower Guide Mechanism 8, Lower Guide Rod 81, Second Lifting Drive Component 82. Moving component, 9. Glue spraying mechanism, 10. Upper sealing mechanism, 11. Lower sealing mechanism, 12. Synchronous belt conveyor mechanism, 121. Upper conveyor belt assembly, 122. Lower conveyor belt assembly, 123. Lifting drive assembly, 1231. First drive motor, 1231. Chain, 1232. Transmission screw, 1233. Moving pair, 1234. Pressure holding mechanism, 13. Pressure holding plate, 131. First moving drive component, 132. First screw adjusting component, 133. Box guide rod, 14. Packaging box, 15. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] The following is for reference. Figure 1-3 The implementation of the sealing device according to the embodiments of the present invention will be described in detail. The box pusher head is not shown in the accompanying drawings.

[0021] According to an embodiment of the present utility model, the sealing device includes: a box pusher head, and a box packing station 1, a box storage station 2, a glue spraying and sealing station 3 and a pressure holding station 4 arranged sequentially along the box conveying direction. The box pusher is used to push the packaging box 15 at the packing station 1 to the storage station 2; The packing station 1 is equipped with a back folding mechanism 6, which is used to fold the back flap of the packaging box 15. The storage station 2 is equipped with a front folding mechanism 5, an upper guide mechanism 7, and a lower guide mechanism 8. The front folding mechanism 5 is used to fold the front flap of the packaging box 15 on the packing station 1. During the process of pushing the packaging box 15 from the packing station 1 to the storage station 2, the upper guide mechanism 7 and the lower guide mechanism 8 can abut against the upper flap and the lower flap of the packaging box 15 one by one, so that the upper flap and the lower flap of the packaging box 15 form a preliminary fold. The glue spraying and sealing station 3 is equipped with a glue spraying mechanism 9, an upper sealing mechanism 10, and a lower sealing mechanism 11. The glue spraying mechanism 9 is used to spray glue on the upper or lower fold of the packaging box 15. The upper sealing mechanism 10 and the lower sealing mechanism 11 fold and seal the upper and lower fold of the packaging box 15 after glue spraying in a one-to-one correspondence. The glue spraying and sealing station 3 to the pressure holding station 4 are equipped with a synchronous belt conveyor mechanism 12. The synchronous belt conveyor mechanism 12 includes an upper conveyor belt assembly 121 and a lower conveyor belt assembly 122, which are used to contact the top and bottom of the packaging box 15 one by one to transport the sealed packaging box 15 to the pressure holding station 4. The pressure holding station 4 is equipped with a pressure holding mechanism 13, which is used to abut against the sealing part of the packaging box 15 to maintain pressure at the sealing part.

[0022] In other words, the device is arranged sequentially along the conveying direction of the packaging box 15, with a packing station 1, a storage station 2, a glue spraying and sealing station 3, and a pressure holding station 4. The pusher head is responsible for the material connection between each station, ensuring the orderly flow of the packaging box 15. During operation, when the packaging box 15 is at the packing station 1, the product is loaded into the packaging box 15 manually or by the packing mechanism. The rear folding mechanism 6 on both sides of the packing station 1 folds the rear flaps of the packaging box 15. The front folding mechanism 5 of the storage station 2 extends to the packing station 1 and folds the front flaps of the packaging box 15 at the packing station 1. After completion, the pusher head pushes the packaging box 15 to the storage station 2. The packing station 1 can then continue to introduce new packaging boxes 15 for packing operations. During the process of pushing the packaging box 15 from the packaging station to the storage station 2, the upper guide mechanism 7 and the lower guide mechanism 8 can abut and guide the upper and lower flaps of the packaging box 15 to gradually fold into a pre-folded state. The box pusher continues to push the packaging box 15 of the packing station 1 forward. The packaging box 15 of the packing station 1 pushes the packaging box 15 of the storage station 2 forward, pushing the packaging box 15 of the storage station 2 to the glue spraying and sealing station 3. The packing station 1 can continue to introduce new packaging boxes 15 for packing operations. The glue spraying mechanism 9 sprays glue on the outer surface of the upper or lower flap in the preliminary folded state. The upper sealing mechanism 10 and the lower sealing mechanism 11 then fold the upper and lower flaps again, so that the glue forms an adhesion between the upper and lower flaps. The box pusher pushes the packaging box 15 of the packing station 1, causing the packaging box 15 of the packing station 1 to push the storage station. Packaging box 15 at storage station 2 pushes packaging box 15 at glue spraying and sealing station 3, causing packaging box 15 at glue spraying and sealing station 3 to enter the feeding end of synchronous belt conveyor mechanism 12. The belt of upper conveyor belt assembly 121 and lower conveyor belt assembly 122 of synchronous belt conveyor mechanism 12 contact the top and bottom surfaces of packaging box 15 respectively, conveying packaging box 15 to pressure holding station 4. After packaging box 15 is conveyed to pressure holding mechanism 13, pressure holding mechanism 13 abuts and holds pressure on the fold of the glue spraying position of packaging box 15. At this time, packing station 1, storage station 2 and glue spraying and sealing station 3 also perform corresponding operations on packaging box 15 in parallel. After pressure holding, packaging box 15 is continued to be conveyed to the next process by synchronous belt conveyor mechanism 12. This can reduce the downtime of the operation, greatly shorten the single box processing cycle, and significantly improve production efficiency.

[0023] Among them, the pusher head, front folding mechanism 5, rear folding mechanism 6, upper guide mechanism 7, lower guide mechanism 8, glue spraying mechanism 9, upper sealing mechanism 10, lower sealing mechanism 11, and pressure holding mechanism 13 can all adopt existing structures. The front folding mechanism 5 and the rear folding mechanism 6 can form a 60° pre-folding angle with the sealing surface of the packaging box 15 through the upper guide mechanism 7 and the lower guide mechanism 8. The upper conveyor belt assembly 121 and the lower conveyor belt assembly 122 can each be provided in twos, which can ensure that the packaging box 15 is transported more smoothly and at the same time provide a stable foundation for the pressure holding mechanism 13. When the packaging box 15 enters the packing station 1, it can be in a state where one end is already sealed or both ends are not sealed. The storage station 2, the glue spraying and sealing station 3, and the pressure holding station 4 can each accommodate one packaging box 15.

[0024] Therefore, this device establishes an efficient workstation connection system through the box pusher and the synchronous belt conveyor 12. The box pusher is responsible for pushing the box from the packing station 1 to the storage station 2, and from the storage station 2 to the glue spraying and sealing station 3. The synchronous belt conveyor 12 ensures the smooth transport of the sealed box 15 to the pressure holding station 4, forming a seamless flow channel. This device integrates functions such as folding, glue spraying, sealing, and pressure holding into a compact layout. Each workstation has a clear division of labor and can operate in parallel. When the pressure holding station 4 is performing the pressing process, the packing station 1, the storage station 2, and the glue spraying and sealing station 3 can simultaneously carry out material feeding and sealing operations. This design significantly shortens the single box processing cycle, avoids the flow stoppage problem of traditional devices, and significantly improves production efficiency while improving the stability of sealing quality, meeting the automation requirements of large-scale production.

[0025] Optionally, the device also includes an infeed guide rod 14, which is positioned above the packing station 1 and the storage station 2. Understandably, the infeed guide rod 14 allows for smooth transport of the packaging box 15 from the previous process to the packing station 1, and the pusher head can also smoothly push the packaging box 15 from the packing station 1 to the storage station 2, preventing the packaging box 15 from flipping or shifting, thus ensuring the stability of subsequent folding and glue spraying operations. There can be two infeed guide rods 14, located on the same horizontal plane and spaced apart above the packing station 1 and the storage station 2. The feed end of the infeed guide rod 14 can be designed as an upward-curving arc, and the discharge end of the infeed guide rod 14 can be positioned close to the feed end of the glue spraying and sealing station 3, facilitating the smooth entry of the packaging box 15 from the storage station 2 into the glue spraying and sealing station 3.

[0026] Optionally, the synchronous belt conveyor mechanism 12 includes a lifting drive assembly 123, which connects to the upper conveyor belt assembly 121 and the upper sealing mechanism 10 to adjust their heights. Understandably, different sizes of packaging boxes 15 have varying heights. The lifting drive assembly 123 can flexibly adjust the heights of the upper conveyor belt assembly 121 and the upper sealing mechanism 10 according to the actual box height, ensuring that the upper conveyor belt assembly 121 remains in contact with the top surface of the packaging box 15, while simultaneously ensuring that the upper sealing mechanism 10 is in the position to be sealed. This design ensures that the packaging box 15 experiences balanced force during conveying, avoiding offset and tipping problems caused by excessive gaps between the conveyor belt and the box, while providing a stable operating foundation for the subsequent pressure-holding mechanism 13, thus improving the reliability and adaptability of the overall sealing process. The lifting drive assembly 123 can be manual or electric.

[0027] Furthermore, the lifting drive assembly 123 includes a first drive motor 1231, a chain 1232, a transmission screw 1233, and a sliding pair 1234. The upper conveyor belt assembly 121 and the upper sealing mechanism 10 are connected to the moving end of the sliding pair 1234. The transmission screw 1233 is threadedly connected to the upper conveyor belt assembly 121, and the chain 1232 connects the transmission screw 1233 and the first drive motor 1231. Understandably, the lifting drive assembly 123 is powered by the first drive motor 1231, and the power is transmitted to the transmission screw 1233 via the chain 1232. When the transmission screw 1233 rotates, the rotational motion is converted into linear motion through the sliding pair 1234, synchronously driving the upper conveyor belt assembly 121 and the upper sealing mechanism 10 to rise and fall smoothly. For packaging boxes 15 of different specifications, switching can be achieved with a single click by selecting the corresponding specification on the human-machine interface. The first drive motor 1231 can be a servo motor, the sliding pair 1234 can be a guide rail and slider structure, and there are four sliding pairs 1234 and four transmission screws 1233. The first drive motor 1231 and the chain can be set on the top of the pressure holding station 4, and the sliding pair 1234 and the transmission screws 1233 are set vertically. The chain 1232 and the transmission screws 1233, as well as the first drive motor 1231 and the chain 1232, can be connected by gears. The upper conveyor belt assembly 121 and the upper sealing mechanism 10 can be mounted on the same mounting plate, and the transmission screws 1233 are threadedly connected to the mounting plate.

[0028] Optionally, the pressure-holding mechanism 13 includes a pressure-holding plate 131 and a first moving drive component 132. The first moving drive component 132 is connected to the pressure-holding plate 131 to drive the pressure-holding plate 131 to extend and retract. Understandably, the first moving drive component 132 can be a cylinder or a servo electric cylinder, which can precisely control the extension and retraction speed and stroke of the pressure-holding plate 131, ensuring that the pressure-holding plate 131 smoothly abuts against the adhesive spraying area of ​​the packaging box 15. During operation, the pressure-holding plate 131 can be set with an appropriate abutment pressure according to the characteristics of the adhesive, avoiding insufficient pressure leading to weak adhesion or excessive pressure damaging the box.

[0029] Furthermore, the pressure-holding mechanism 13 also includes a first screw adjustment component 133, and a first moving drive component 132 is installed at the output end of the first screw adjustment component 133 to make the height of the first moving drive component 132 adjustable. Understandably, the first screw adjustment component 133 adjusts the height of its output end by rotating the screw, thereby driving the first moving drive component 132 and the pressure-holding plate 131 to rise and fall synchronously. This design allows the pressure-holding plate 131 to adapt to the glue-spraying position of packaging boxes 15 of different heights. Regardless of the height of the packaging box 15, the pressure-holding plate 131 can be accurately positioned at the glue-spraying bonding point by adjusting the screw. The adjustment process does not require disassembly of parts, making operation convenient and highly accurate, effectively improving the versatility and operational flexibility of the pressure-holding mechanism 13. The first screw adjustment component 133 can be a screw-guide rail structure.

[0030] Optionally, the upper guide mechanism 7 includes an upper guide rod 71 and a first lifting drive 72 for driving the upper guide rod 71 to rise and fall, and the lower guide mechanism 8 includes a lower guide rod 81 and a second lifting drive 82 for driving the lower guide rod 81 to rise and fall. Understandably, the first lifting drive 72 and the second lifting drive 82 can independently control the height of the upper guide rod 71 and the lower guide rod 81, enabling the guide rods to precisely correspond to the upper and lower flaps of packaging boxes 15 of different heights. During operation, adjusting the height of the guide rods ensures a tight fit with the flaps, thereby stably guiding the flaps to form a 60° pre-fold angle, avoiding flap skewing caused by misalignment between the guide rods and flaps, providing a precise pre-folding foundation for subsequent glue spraying and sealing processes, and improving overall folding accuracy. The upper guide rod 71 and the lower guide rod 81 can extend and retract vertically to pre-fold the upper and lower flaps, thus reducing the bending angle of the upper guide rod 71 and the lower guide rod 81, while also making full use of vertical space.

[0031] Optionally, the front folding mechanism 5 includes a front folding plate 51, a second moving drive component 52, a second screw adjustment component 53, and a third screw adjustment component 54. The front folding plate 51 is mounted on the output end of the second moving drive component 52. The second moving drive component 52 is mounted on the output end of the second screw adjustment component 53 to make the height of the second moving drive component 52 adjustable. The second screw adjustment component 53 is mounted on the output end of the third screw adjustment component 54 to adjust the front and rear positions of the second screw adjustment component 53. Understandably, the second moving drive component 52 drives the front folding plate 51 to complete the folding action. The second screw adjustment component 53 adjusts the height to adapt the front folding plate 51 to packaging boxes 15 of different heights. The third screw adjustment component 54 adjusts the front and rear positions to ensure precise alignment of the front folding plate 51 with the front fold of the packaging box 15. The three-dimensional adjustable structural design allows the front folding mechanism 5 to adapt to various sizes of packaging boxes 15, avoiding folding misalignment problems caused by changes in box shape, and improving the versatility and folding reliability of the mechanism. Both the second screw adjusting member 53 and the third screw adjusting member 54 are equipped with rotatable operating handles, and the second moving drive member 52 can be a cylinder.

[0032] Optionally, the rear folding mechanism 6 includes a rear folding plate 61, a third moving drive component 62, a fourth screw adjusting component 63, and a fourth moving drive component 64. The rear folding plate 61 is installed at the output end of the third moving drive component 62 so that the rear folding plate 61 tilts against the rear flap of the packaging box 15. The third moving drive component 62 is installed at the output end of the fourth screw adjusting component 63 so that the height of the third moving drive component 62 is adjustable. The fourth screw adjusting component 63 is installed at the output end of the fourth moving drive component 64 so that the rear folding plate 61 vertically abuts against the rear flap of the packaging box 15. Understandably, during operation, the fourth moving drive component 64 drives the third moving drive component 62 and the rear folding plate 61 to move towards the packaging box 15, so that the rear folding plate 61 is close to and located on the oblique rear side of the rear flap. Then, the third moving drive component 62 drives the rear folding plate 61 to tilt against the rear flap for folding. This achieves both avoidance when introducing the packaging box 15 and precise folding. The fourth screw adjusting component 63 adjusts the height to ensure compatibility with the box type and improves the versatility of the equipment. The third moving drive component 62 can be a cylinder, and the fourth moving drive component 64 can be a cylinder combined with a guide rail structure.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A box sealing device, characterized in that, include: The box pusher head, and the box packing station, box storage station, glue spraying and sealing station and pressure holding station arranged sequentially along the box conveying direction; The box pusher is used to push the packaging boxes at the packing station to the storage station; The packing station is equipped with a back folding mechanism, which is used to fold the back flap of the packaging box. The storage box station is equipped with a front folding mechanism, an upper guide mechanism, and a lower guide mechanism. The front folding mechanism is used to fold the front flap of the packaging box at the packing station. During the process of pushing the packaging box from the packing station to the storage box station, the upper guide mechanism and the lower guide mechanism can abut against the upper flap and the lower flap of the packaging box one by one, so that the upper flap and the lower flap of the packaging box form a preliminary fold. The glue spraying and sealing station is equipped with a glue spraying mechanism, an upper sealing mechanism, and a lower sealing mechanism. The glue spraying mechanism is used to spray glue onto the upper or lower flaps of the packaging box. The upper sealing mechanism and the lower sealing mechanism fold and seal the upper and lower flaps of the packaged box after glue spraying in a one-to-one correspondence. The adhesive spraying and sealing station to the pressure holding station is provided with a synchronous belt conveyor mechanism. The synchronous belt conveyor mechanism includes an upper conveyor belt assembly and a lower conveyor belt assembly, which are used to contact the top and bottom of the packaging box one by one to transport the sealed packaging box to the pressure holding station. The pressure holding station is equipped with a pressure holding mechanism, which is used to press against the sealing part of the packaging box to maintain pressure at the sealing part.

2. The sealing device as described in claim 1, characterized in that, It also includes a box-entry guide rod, which is positioned above the box-packing station and the box-storage station.

3. The sealing device as described in claim 1, characterized in that, The synchronous belt conveyor mechanism includes a lifting drive assembly, which is connected to the upper conveyor belt assembly and the upper sealing mechanism to adjust the height of the upper conveyor belt assembly and the upper sealing mechanism.

4. The sealing device as described in claim 3, characterized in that, The lifting drive assembly includes a first drive motor, a chain, a transmission screw, and a sliding pair. The upper conveyor belt assembly and the upper sealing mechanism are connected to the moving end of the sliding pair. The transmission screw is threadedly connected to the upper conveyor belt assembly. The chain connects the transmission screw and the first drive motor.

5. The sealing device as described in claim 1, characterized in that, The pressure holding mechanism includes a pressure holding plate and a first moving drive component, which is connected to the pressure holding plate to drive the pressure holding plate to extend or retract.

6. The sealing device as described in claim 5, characterized in that, The pressure-holding mechanism further includes a first screw adjustment component, and the first movable drive component is installed at the output end of the first screw adjustment component so that the height of the first movable drive component is adjustable.

7. The sealing device as described in claim 1, characterized in that, The upper guide mechanism includes an upper guide rod and a first lifting drive for driving the upper guide rod to rise and fall, and the lower guide mechanism includes a lower guide rod and a second lifting drive for driving the lower guide rod to rise and fall.

8. The sealing device as described in claim 1, characterized in that, The front folding mechanism includes a front folding plate, a second moving drive component, a second screw adjusting component, and a third screw adjusting component. The front folding plate is mounted on the output end of the second moving drive component. The second moving drive component is mounted on the output end of the second screw adjusting component to make the height of the second moving drive component adjustable. The second screw adjusting component is mounted on the output end of the third screw adjusting component to adjust the front and rear positions of the second screw adjusting component.

9. The sealing device as described in claim 1, characterized in that, The rear folding mechanism includes a rear folding plate, a third moving drive component, a fourth screw adjusting component, and a fourth moving drive component. The rear folding plate is installed at the output end of the third moving drive component so that the rear folding plate tilts and abuts against the rear flap of the packaging box. The third moving drive component is installed at the output end of the fourth screw adjusting component so that the height of the third moving drive component is adjustable. The fourth screw adjusting component is installed at the output end of the fourth moving drive component so that the rear folding plate vertically abuts against the rear flap of the packaging box.

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