Automatic nail sealing equipment for packaging box

Abstract

The invention relates to the technical field of packaging box processing, in particular to packaging box automatic nail sealing equipment which comprises a nailing mechanism and at least two pressing mechanisms, the nailing mechanism is used for conducting nail sealing on a carton board, and the two pressing mechanisms are symmetrically arranged on the two sides of the nailing mechanism; the pressing mechanism comprises a driving assembly and a pressing roller set, the driving assembly is arranged on the nailing mechanism, the pressing roller set is rotationally connected to the nailing mechanism and connected with the driving assembly, the driving assembly is used for driving the pressing roller set to rotate, and the pressing roller set is used for pressing a carton board. The method has the effect of improving the product quality.

Description

Technical Field

[0001] The present application relates to the technical field of packaging box processing, and in particular to an automatic sealing device for packaging boxes. Background Art

[0002] At present, in the modern packaging industry, packaging boxes (cartons) are a common packaging material and are widely used in food, medicine, chemicals, daily necessities and other fields. The sealing operation of packaging boxes is an important link to ensure its structural stability and appearance quality. In the actual production process, in order to improve the efficiency and quality of sealing, automated sealing equipment is usually used. Through the coordinated work of mechanical and electrical systems, the rapid sealing of packaging boxes is achieved. In related technologies, a conveyor belt is usually used to transport the folded carton boards to be sealed to the sealing station, and then a nailing mechanism is used to seal the carton boards. Finally, the sealed carton boards are discharged to obtain packaging boxes, completing the automated sealing process.

[0003] Regarding the above-mentioned related technologies: after the carton boards are folded, there is a lack of positioning at the seams of the carton boards, which makes it easy for the seams of the carton boards to deform when the nailing mechanism seals the carton boards, resulting in deviations in the size of the produced packaging boxes, which can easily lead to reduced product quality. Summary of the invention

[0004] In order to improve product quality, the present application provides an automatic sealing device for packaging boxes.

[0005] The present application provides an automatic sealing device for packaging boxes, which adopts the following technical solutions: An automatic nailing device for packaging boxes, comprising a nailing mechanism and a pressing mechanism, wherein the nailing mechanism is used to nail a carton board, and at least two pressing mechanisms are provided, and the two pressing mechanisms are symmetrically arranged on both sides of the nailing mechanism; The clamping mechanism includes a driving assembly and a clamping roller group. The driving assembly is arranged on the nailing mechanism. The clamping roller group is rotatably connected to the nailing mechanism and connected to the driving assembly. The driving assembly is used to drive the clamping roller group to rotate, and the clamping roller group is used to clamp the carton board.

[0006] By adopting the above technical solution, when the packaging box needs to be nailed, the folded carton board is first transported to the nailing mechanism. At this time, the two symmetrically arranged clamping mechanisms can respectively clamp the two sides of the joint on the carton board, avoiding the deformation problem caused by the lack of positioning at the joint of the carton board, so that the nailing mechanism can perform the nailing operation at the accurate position, ensuring that each nail firmly fixes the joint of the packaging box, and improving the quality and stability of the nailing. At the same time, the drive assembly can drive the clamping roller group to rotate, thereby facilitating the transportation of the packaging box to the outside of the nailing mechanism, so as to reduce the possibility of the packaging box being restricted in the nailing mechanism and unable to move. This design not only improves the accuracy and stability of nailing, but also significantly improves the quality and production efficiency of the product.

[0007] Optionally, the pressing roller group includes a pressing roller and a flexible sleeve sleeved on the pressing roller, and the pressing roller is rotatably connected to the nailing mechanism and connected to the driving assembly.

[0008] By adopting the above technical solution, when the carton board is conveyed to the bottom of the nailing mechanism, the flexible sleeve can fit tightly on the surface of the carton board to press the carton board, and the driving component can drive the pressing roller to rotate, and the pressing roller can drive the flexible sleeve to rotate, thereby, on the one hand, effectively preventing the carton board from being deformed due to uneven force during the nailing process, and on the other hand, effectively reducing the damage of the pressing roller to the surface of the carton board, which is beneficial to improving the quality of nailing and the appearance quality of the finished product.

[0009] Optionally, the clamping mechanism includes an inner support assembly and an elastic sleeve group, the inner support assembly is arranged on the clamping roller group, the elastic sleeve group is sleeved on the inner support assembly, and the driving assembly can adjust the diameter of the elastic sleeve group through the clamping roller group and the inner support assembly.

[0010] By adopting the above technical solution, the driving assembly can adjust the diameter of the elastic sleeve through the pressing roller assembly and the inner support assembly, so that when the carton board is conveyed to the bottom of the nailing mechanism, the elastic sleeve can fit tightly on the surface of the carton board, thereby helping to prevent the carton board from deforming during the nailing process. This design not only improves the nailing accuracy, but also ensures the dimensional stability of the packaging box, ultimately improving the overall quality and production efficiency of the product.

[0011] Optionally, the elastic sleeve group includes a plurality of elastic sleeves, and the plurality of elastic sleeves are sequentially sleeved on the inner support assembly, and the plurality of elastic sleeves are detachably connected to each other.

[0012] By adopting the above technical scheme, multiple elastic sleeves are sequentially sleeved on the inner support assembly, and each elastic sleeve is detachably connected to each other, so that when the outermost elastic sleeve is worn, the outermost elastic sleeve can be directly removed, and the diameter of the remaining elastic sleeves can be adjusted through the inner support assembly, so that the outermost elastic sleeve of the remaining elastic sleeves can stably fit the surface of the packaging box to ensure the uniformity of the clamping effect, thereby avoiding the problem of uneven local pressure caused by the wear of a single elastic sleeve, reducing the possibility of deformation of the packaging box during the sealing process to a certain extent, improving the sealing quality and product stability, and effectively reducing the maintenance cost and time and improving the maintenance efficiency.

[0013] Optionally, a groove is formed inwardly on the elastic sleeve, and a protrusion is provided on the elastic sleeve at a position corresponding to the groove, and the protrusion is used to be inserted into the corresponding groove.

[0014] By adopting the above technical solution, the groove and protrusion design on the elastic sleeve can effectively reduce the possibility of relative rotation between adjacent elastic sleeves, thereby improving the connection stability between the elastic sleeves and avoiding the loosening or dislocation of the elastic sleeves due to external forces. This structure not only improves the positioning accuracy during the nailing process of the packaging box, but also enhances the reliability of the operation of the entire equipment.

[0015] Optionally, the pressing roller group includes a supporting roller and a movable roller, the supporting roller is rotatably connected to the nailing mechanism, one end of the supporting roller away from the nailing mechanism is slidably connected to the movable roller, the driving assembly is respectively connected to the supporting roller and the movable roller, and the driving assembly is used to drive the movable roller to move relative to the supporting roller or drive the supporting roller to rotate; The inner support assembly includes a plurality of arc panels, which are evenly distributed around the axis of the support roller. The elastic sleeve is sleeved on the plurality of arc panels. A connecting rod assembly is arranged between the arc panels, the support roller and the movable roller. When the movable roller moves relative to the support roller, the connecting rod assembly can drive the plurality of arc panels to move closer to or away from each other.

[0016] By adopting the above technical solution, when the driving assembly drives the movable roller to move relative to the supporting roller, the movable roller can push the multiple arc panels to move closer or farther from each other through the connecting rod assembly, so as to facilitate the use of multiple arc panels to open the elastic sleeve or shrink the elastic sleeve, so as to facilitate the elastic sleeve to fit accurately on the surface of the carton board to press the carton board, thereby facilitating the prevention of deformation of the seams of the carton board during the nailing process. When the driving assembly drives the supporting roller to rotate, the relative position of the movable roller and the supporting roller no longer changes, and at the same time, the supporting roller drives the movable roller to rotate, and drives the elastic sleeve to rotate through the connecting rod assembly and multiple arc panels, thereby facilitating the transportation of the carton board to the outside of the nailing mechanism, so as to reduce the possibility that the carton board is restricted in the nailing mechanism and cannot move, thereby facilitating the improvement of production efficiency.

[0017] Optionally, the connecting rod assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is movably connected to the arc panel, the other end of the first connecting rod is hinged to the support roller, and the second connecting rod is hinged to the arc panel, the first connecting rod and the movable roller in sequence.

[0018] By adopting the above technical solution, when the movable roller moves relative to the supporting roller, the movable roller can drive the second connecting rod to move, and the second connecting rod can drive the first connecting rod to move and cooperate with the first connecting rod to drive multiple arc panels to move closer to or away from each other, thereby facilitating the adjustment of the diameter of the elastic sleeve, so that the elastic sleeve can effectively adapt to carton boards of different sizes, ensuring the consistency and stability of the clamping effect, and thus helping to avoid deformation of the carton boards due to lack of positioning at the seams during the nailing process, thereby improving product quality and production efficiency.

[0019] Optionally, the driving assembly includes a driving member, a rotating drum, a screw rod, a ratchet and a ratchet, the driving member is arranged on the nailing mechanism, the rotating drum is coaxial with the supporting roller and rotatably connected, the rotating drum is connected to the driving member, the ratchet is coaxially arranged on the rotating drum, the ratchet is movably arranged on the supporting roller and meshes with the ratchet, the screw rod is coaxial and rotatably connected to the supporting roller, one end of the screw rod is threadedly connected to the movable roller, and the other end of the screw rod is connected to the rotating drum.

[0020] By adopting the above technical solution, when the driving member drives the drum to rotate forward, the ratchet limits the ratchet wheel, so that the drum is not easy to rotate relative to the support roller, so that the drum drives the support roller to rotate, and the support roller drives the elastic sleeve to rotate through the movable roller, the connecting rod assembly and multiple arc panels, so as to facilitate the transportation of the carton board to the outside of the nailing mechanism. At this time, the screw does not rotate. And when the driving member drives the drum to reverse, the ratchet no longer limits the ratchet wheel, so that the drum can rotate relative to the support roller, the drum drives the screw to rotate, and the screw drives the movable roller to move in the direction close to the support roller, so that the movable tube drives the multiple arc panels to move away from each other through the connecting rod assembly to increase the diameter of the elastic sleeve, so as to facilitate the adjustment of the pressure of the elastic sleeve on the carton board. This design not only improves the working accuracy of the clamping mechanism, but also enhances its ability to adapt to different sizes of carton boards, and effectively prevents product quality problems caused by deformation of the carton board at the seam during the nailing process.

[0021] Optionally, a through hole is opened on the support roller along its own axial direction, a slide groove is opened on the circumferential outer wall of the support roller along its own axial direction, one end of the movable roller is slidably inserted in the through hole, and a slider is provided on the movable roller, and the slider is slidably inserted in the slide groove.

[0022] By adopting the above technical solution, the through hole and chute design on the support roller and the slider at one end of the movable roller can be used in conjunction with it to achieve precise linear motion of the movable roller inside the support roller. This design not only ensures the stable movement of the movable roller relative to the support roller, but also improves the working accuracy and reliability of the entire clamping mechanism. At the same time, due to the sliding cooperation between the slider and the chute, the friction resistance is reduced, the wear is reduced, and the service life of the equipment is extended. In addition, this design makes it more flexible and convenient to adjust the clamping force, and can adapt to packaging boxes of different sizes and materials, further improving the scope of application and work efficiency of the equipment.

[0023] Optionally, it includes a frame, a feeding mechanism, a conveying mechanism and a folding mechanism, wherein the conveying mechanism is arranged on the frame, and the feeding mechanism, the folding mechanism and the nailing mechanism are arranged on the frame in sequence and are located above the conveying mechanism.

[0024] By adopting the above technical solution, when it is necessary to perform nailing operation on the packaging box, the feeding mechanism is first used to transport the carton board to the conveying mechanism, and the conveying mechanism transports the carton board so that the carton board is folded by the folding mechanism and enters the nailing mechanism, so that the nailing mechanism can seal the nail groove of the carton board, and after the nailing is completed, the conveying mechanism can transport the carton board out of the nailing mechanism, thereby facilitating the production of the packaging box.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The two pressing mechanisms are symmetrically arranged on both sides of the nailing mechanism and close to the conveying mechanism, which can accurately press the joints of the packaging box before nailing, effectively preventing the deformation problem caused by the lack of effective positioning at the joints, and improving the dimensional accuracy of the finished packaging box; 2. Through the cooperation between the driving assembly and the pressing roller group, the pressing roller group can not only press the packaging box to prevent the packaging box from displacement or deformation during the nailing process, but also transport the packaging box to the outside of the nailing mechanism to reduce the possibility that the packaging box is restricted in the nailing mechanism and cannot move; 3. Through the cooperation between the inner support assembly and multiple elastic sleeves, the elastic sleeves can be quickly replaced after being worn, thereby avoiding the problem of uneven local pressure caused by the wear of a single elastic sleeve on the one hand, and effectively reducing the maintenance cost and time on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an automatic sealing device for packaging boxes in an embodiment of the present application.

[0027] Figure 2 It is a partial structural schematic diagram of an automatic sealing device for packaging boxes in Example 1 of the present application.

[0028] Figure 3 It is a partial side view of an automatic stapling device for packaging boxes in Example 2 of the present application.

[0029] Figure 4 is along Figure 3 Partial structural cross-sectional view of the nailing mechanism and clamping mechanism of the AA line.

[0030] Figure 5 It is a partial structural diagram of the clamping mechanism in Example 2 of the present application.

[0031] Figure 6 It is a front view of the clamping mechanism in Example 2 of the present application.

[0032] Figure 7 is along Figure 6 Sectional view along line BB.

[0033] Description of reference numerals: 1. Frame; 2. Feeding mechanism; 3. Conveying mechanism; 4. Folding mechanism; 5. Nailing mechanism; 6. Pressing mechanism; 61. Driving assembly; 611. Driving member; 612. Rotating drum; 613. Screw rod; 614. Ratchet; 615. Ratchet; 62. Pressing roller group; 621. Pressing roller; 622. Flexible sleeve; 623. Support roller; 6231. Through hole; 6232. Slide groove; 624. Movable roller; 6241. Sliding block; 63. Inner support assembly; 631. Arc panel; 64. Elastic sleeve group; 641. Elastic sleeve; 6411. Groove; 6412. Protrusion; 65. Connecting rod assembly; 651. First connecting rod; 652. Second connecting rod. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-7 This application is described in further detail.

[0035] The embodiment of the present application discloses an automatic nail sealing device for a packaging box.

[0036] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] Embodiment 1: Reference Figure 1 and Figure 2 The automatic nailing device for packaging boxes includes a frame 1, a feeding mechanism 2, a conveying mechanism 3, a folding mechanism 4, a nailing mechanism 5 and a pressing mechanism 6. Among them, the conveying mechanism 3 is installed on the frame 1, and the feeding mechanism 2, the folding mechanism 4, and the nailing mechanism 5 are sequentially arranged on the frame 1 and located above the conveying mechanism 3. There are at least two pressing mechanisms 6, and the two pressing mechanisms 6 are symmetrically arranged on both sides of the nailing mechanism 5. The two pressing mechanisms 6 are arranged close to the conveying mechanism 3. When the conveying mechanism 3 conveys the carton board to the bottom of the nailing mechanism 5, the pressing mechanism 6 presses the carton board, thereby achieving the purpose of improving the nailing quality and product qualification rate.

[0038] A plurality of carton boards are stored on the feeding mechanism 2. In the actual working process, the feeding mechanism 2 sequentially conveys the plurality of carton boards to the conveying mechanism 3, so that the conveying mechanism 3 conveys the carton boards to the nailing mechanism 5. In this process, the folding mechanism 4 folds the carton boards so that the carton boards are in a folded state when they are close to the nailing mechanism 5, so that the nailing mechanism 5 can perform nailing operation on the carton boards to obtain packaging boxes. In this embodiment, the conveying mechanism 3 is a conveyor belt, so that the conveying mechanism 3 can be used to convey the carton boards to the nailing mechanism 5.

[0039] It should be noted that in the embodiment of the present application, the specific structures and working principles of the feeding mechanism 2, the conveying mechanism 3, the folding mechanism 4 and the nailing mechanism 5 are conventional technical means for those skilled in the art, and therefore will not be elaborated in detail in the embodiment of the present application.

[0040] Reference Figure 2 The clamping mechanism 6 includes a driving assembly 61 and a clamping roller set 62. The driving assembly 61 is disposed on the nailing mechanism 5, and the clamping roller set 62 is rotatably connected to the nailing mechanism 5 and connected to the driving assembly 61. In this embodiment, the driving assembly 61 is a motor, so that the driving assembly 61 can be used to drive the clamping roller set 62 to rotate.

[0041] The pressing roller assembly 62 includes a pressing roller 621 and a flexible sleeve 622 sleeved on the pressing roller 621. The pressing roller 621 is rotatably connected to the nailing mechanism 5 and connected to the driving assembly 61. In this embodiment, the flexible sleeve 622 can be made of rubber, silicone or other elastic materials to ensure that sufficient pressure can be provided when contacting the carton board without damaging the surface of the carton board.

[0042] The implementation principle of the automatic nailing device for packaging boxes in Example 1 of the present application is as follows: when the packaging box needs to be nailed, the feeding mechanism 2 is first started, and the feeding mechanism 2 sequentially conveys multiple carton boards to the conveying mechanism 3, and the conveying mechanism 3 conveys the carton boards to the nailing mechanism 5, so that the carton boards are close to the nailing mechanism 5 after being folded by the folding mechanism 4. At this time, the flexible sleeve 622 can fit tightly on the surface of the carton board to press the carton board, so that the nailing mechanism 5 can perform the nailing operation at the correct position. At the same time, the driving component 61 drives the clamping roller 621 to rotate, and the clamping roller 621 drives the flexible sleeve 622 to rotate, so that the flexible sleeve 622 cooperates with the conveying mechanism 3 to convey the carton board to the outside of the nailing mechanism 5, thereby facilitating the production of the packaging box.

[0043] Embodiment 2: Reference Figure 3 and Figure 4 The difference between this embodiment and embodiment 1 is that the clamping mechanism 6 (refer to Figure 2) also includes an inner support component 63 and an elastic sleeve group 64, and the clamping roller group 62 includes a supporting roller 623 and a movable roller 624.

[0044] Reference Figure 4 and Figure 5 The support roller 623 is rotatably connected to the nailing mechanism 5, a through hole 6231 is opened on the support roller 623 along its own axial direction, a slide groove 6232 is opened on the circumferential outer wall of the support roller 623 along its own axial direction, and there are multiple slide grooves 6232, and the multiple slide grooves 6232 are evenly distributed around the axis of the support roller 623.

[0045] One end of the movable roller 624 is slidably inserted in the through hole 6231, and a slider 6241 is integrally formed on the movable roller 624. The number of the sliders 6241 is equal to the number of the slide grooves 6232, and one slider 6241 is slidably inserted in one slide groove 6232, so that the movable roller 624 can slide relative to the support roller 623 and the movable roller 624 is not easy to rotate relative to the support roller 623.

[0046] Reference Figure 6 and Figure 7 The driving assembly 61 includes a driving member 611, a rotating drum 612, a screw rod 613, a ratchet wheel 614 and a ratchet tooth 615. The driving member 611 is installed in the nailing mechanism 5 (refer to Figure 4 ), the drum 612 is coaxially and rotationally connected to the support roller 623, and the drum 612 is fixedly connected to the output end of the driving member 611. In this embodiment, the driving member 611 is a stepping motor, so that the stepping motor can be used to drive the drum 612 to rotate forward or reverse.

[0047] Reference Figure 4 and Figure 7 The ratchet 614 is coaxially and fixedly connected to the rotating drum 612, and the ratchet 615 is movably arranged on the supporting roller 623 and meshes with the ratchet 614. When the driving member 611 drives the rotating drum 612 to rotate forward, the ratchet 615 limits the ratchet 614, so that the rotating drum 612 is not easy to rotate relative to the supporting roller 623, so that the rotating drum 612 is easy to drive the supporting roller 623 to rotate. And when the driving member 611 drives the rotating drum 612 to rotate reversely, the ratchet 615 no longer limits the ratchet 614, so that the rotating drum 612 no longer drives the supporting roller 623 to rotate, and the rotating drum 612 can rotate relative to the supporting roller 623.

[0048] The screw rod 613 is coaxially and rotatably connected to the support roller 623, and one end of the screw rod 613 is threadedly connected to the movable roller 624, and the other end is fixedly connected to the rotating drum 612, so that when the rotating drum 612 drives the support roller 623 to rotate, the rotating drum 612 can drive the screw rod 613 and the support roller 623 to rotate synchronously. And when the rotating drum 612 rotates relative to the support roller 623, the rotating drum 612 can drive the screw rod 613 to rotate relative to the support roller 623, so that the screw rod 613 drives the movable roller 624 to move in a direction close to the support roller 623.

[0049] When it is necessary to drive the movable roller 624 to move away from the support roller 623 , the ratchet 615 is first moved so that the ratchet 615 no longer limits the ratchet wheel 614 , and then the rotating drum 612 is used to drive the screw rod 613 to rotate to drive the movable roller 624 to move away from the support roller 623 .

[0050] Reference Figure 4 and Figure 7 The inner support assembly 63 includes a plurality of arc panels 631, and the plurality of arc panels 631 are evenly distributed around the axis of the support roller 623, and the plurality of arc panels 631 can form an annular structure. A connecting rod assembly 65 is arranged between each arc panel 631 and the support roller 623 and the movable roller 624. When the movable roller 624 moves relative to the support roller 623, the connecting rod assembly 65 can drive the plurality of arc panels 631 to move closer to or away from each other.

[0051] The connecting rod assembly 65 includes a first connecting rod 651 and a second connecting rod 652. One end of the first connecting rod 651 slides and is hinged with the curved plate 631, the other end of the first connecting rod 651 is hinged with the support roller 623, one end of the second connecting rod 652 is hinged with the curved plate 631, the other end of the second connecting rod 652 is hinged with the movable roller 624, and the middle parts of the first connecting rod 651 and the second connecting rod 652 are hinged.

[0052] When the movable roller 624 moves relative to the supporting roller 623 , the movable roller 624 can drive the second connecting rod 652 to move, and the second connecting rod 652 can drive the first connecting rod 651 to move and cooperate with the first connecting rod 651 to drive the multiple arc panels 631 to move closer to or farther away from each other.

[0053] Reference Figure 7The elastic sleeve group 64 includes a plurality of elastic sleeves 641, which are sequentially sleeved on the inner support assembly 63, and the plurality of elastic sleeves 641 are detachably connected. In this embodiment, a groove 6411 is formed inwardly on the elastic sleeve 641, and a protrusion 6412 is formed on the elastic sleeve 641 at a position corresponding to the groove 6411. Adjacent elastic sleeves 641 are interlocked with each other through the groove 6411 and the protrusion 6412 to form a tight connection. This design not only facilitates the replacement of worn elastic sleeves 641, but also adjusts the combination of the elastic sleeves 641 according to packaging boxes of different sizes to meet the needs of products of various specifications.

[0054] The implementation principle of the second embodiment is as follows: when the carton board is conveyed to the nailing mechanism 5, the outermost elastic sleeve 641 among the multiple elastic sleeves 641 can press the carton board tightly, so that the nailing mechanism 5 can perform the nailing operation at the accurate position. When the outermost elastic sleeve 641 is worn, the outermost elastic sleeve 641 is first removed, and then the driving member 611 is started, the driving member 611 drives the rotating drum 612 to reverse, and the rotating drum 612 drives the screw rod 613 to rotate, so as to drive the movable roller 624 to move in the direction close to the supporting roller 623, and the movable roller 624 drives the second connecting rod 652 to move, and the second connecting rod 652 drives the first connecting rod 651 to move and cooperate with the first connecting rod 651, driving the multiple arc panels 631 to move away from each other, so that the arc panels 631 open the remaining elastic sleeves 641, so as to adjust the diameter of the outermost elastic sleeve 641 among the remaining elastic sleeves 641 to a suitable value, thereby facilitating the switching of the elastic sleeves 641 and improving the maintenance efficiency.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic sealing device for packaging boxes, characterized by: It comprises a nailing mechanism (5) and a pressing mechanism (6), wherein the nailing mechanism (5) is used to nail the carton board, and at least two pressing mechanisms (6) are provided, and the two pressing mechanisms (6) are symmetrically arranged on both sides of the nailing mechanism (5); The pressing mechanism (6) comprises a driving assembly (61) and a pressing roller group (62); the driving assembly (61) is arranged on the nailing mechanism (5); the pressing roller group (62) is rotatably connected to the nailing mechanism (5) and is connected to the driving assembly (61); the driving assembly (61) is used to drive the pressing roller group (62) to rotate; and the pressing roller group (62) is used to press the carton board.

2. The automatic sealing device for packaging boxes according to claim 1 is characterized in that: The pressing roller assembly (62) comprises a pressing roller (621) and a flexible sleeve (622) sleeved on the pressing roller (621); the pressing roller (621) is rotatably connected to the nailing mechanism (5) and is connected to the driving assembly (61).

3. The automatic sealing device for packaging boxes according to claim 1 is characterized in that: The clamping mechanism (6) comprises an inner support assembly (63) and an elastic sleeve group (64); the inner support assembly (63) is arranged on the clamping roller group (62); the elastic sleeve group (64) is sleeved on the inner support assembly (63); and the driving assembly (61) is capable of adjusting the diameter of the elastic sleeve group (64) through the clamping roller group (62) and the inner support assembly (63).

4. The automatic sealing device for packaging boxes according to claim 3 is characterized in that: The elastic sleeve group (64) comprises a plurality of elastic sleeves (641), the plurality of elastic sleeves (641) being sequentially sleeved on the inner support assembly (63), and the plurality of elastic sleeves (641) being detachably connected to each other.

5. The automatic sealing device for packaging boxes according to claim 4 is characterized in that: The elastic sleeve (641) is concavely formed with a groove (6411), and a protrusion (6412) is provided on the elastic sleeve (641) at a position corresponding to the groove (6411), and the protrusion (6412) is used to be inserted into the corresponding groove (6411).

6. The automatic sealing device for packaging boxes according to claim 3 is characterized in that: The pressing roller group (62) comprises a supporting roller (623) and a movable roller (624); the supporting roller (623) is rotatably connected to the nailing mechanism (5); one end of the supporting roller (623) away from the nailing mechanism (5) is slidably connected to the movable roller (624); the driving component (61) is respectively connected to the supporting roller (623) and the movable roller (624); the driving component (61) is used to drive the movable roller (624) to move relative to the supporting roller (623) or to drive the supporting roller (623) to rotate; The inner support assembly (63) comprises a plurality of arc panels (631), wherein the plurality of arc panels (631) are evenly distributed around the axis of the support roller (623), the elastic sleeve (64) is sleeved on the plurality of arc panels (631), and a connecting rod assembly (65) is provided between the arc panels (631), the support roller (623) and the movable roller (624); when the movable roller (624) moves relative to the support roller (623), the connecting rod assembly (65) can drive the plurality of arc panels (631) to move closer to or farther from each other.

7. The automatic sealing device for packaging boxes according to claim 6, characterized in that: The connecting rod assembly (65) comprises a first connecting rod (651) and a second connecting rod (652); one end of the first connecting rod (651) is movably connected to the curved panel (631); the other end of the first connecting rod (651) is hinged to the supporting roller (623); and the second connecting rod (652) is hinged to the curved panel (631), the first connecting rod (651) and the movable roller (624) in sequence.

8. The automatic sealing device for packaging boxes according to claim 6 is characterized in that: The driving assembly (61) comprises a driving member (611), a rotating drum (612), a screw rod (613), a ratchet (614) and a ratchet tooth (615); the driving member (611) is arranged on the nail driving mechanism (5); the rotating drum (612) is coaxially connected to the supporting roller (623) and rotatably connected; the rotating drum (612) is connected to the driving member (611); the ratchet (614) is coaxially arranged on the rotating drum (612); the ratchet tooth (615) is movably arranged on the supporting roller (623) and meshes with the ratchet wheel (614); the screw rod (613) is coaxially connected to the supporting roller (623) and rotatably connected; one end of the screw rod (613) is threadedly connected to the movable roller (624); and the other end of the screw rod (613) is connected to the rotating drum (612).

9. The automatic sealing device for packaging boxes according to claim 6, characterized in that: The support roller (623) is provided with a through hole (6231) along its own axial direction, and a slide groove (6232) is provided on the circumferential outer wall of the support roller (623) along its own axial direction. One end of the movable roller (624) is slidably inserted in the through hole (6231), and a slider (6241) is provided on the movable roller (624), and the slider (6241) is slidably inserted in the slide groove (6232).

10. The automatic sealing device for packaging boxes according to claim 1, characterized in that: The invention comprises a frame (1), a feeding mechanism (2), a conveying mechanism (3) and a folding mechanism (4), wherein the conveying mechanism (3) is arranged on the frame (1), and the feeding mechanism (2), the folding mechanism (4) and the nailing mechanism (5) are arranged on the frame (1) in sequence and are located above the conveying mechanism (3).

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