Automatic carton sealing device

Abstract

The application belongs to the technical field of carton sealing devices, and discloses an automatic carton sealing device for paper boxes, which comprises a mounting frame, the side wall of one side of the mounting frame is fixed with two connecting plates, a material conveying mechanism is arranged between the two connecting plates, the conveying mechanism comprises a conveyor and a centering plate for the centering of paper boxes, a moving mechanism is arranged on the connecting plate, an electric suction cup I is arranged on the moving mechanism, the moving mechanism is used for driving the horizontal movement and lifting of the electric suction cup I, an electric suction cup II is fixed to the side wall of the mounting frame, and a carton sealing mechanism for automatically sealing the paper boxes is arranged on the mounting frame. According to the application, the existing structure is improved, manual operation is not needed, the paper boxes which are folded into flat sheet-shaped boxes along the indentation lines are adjusted into box-shaped boxes with a rectangular cavity inside, the labor intensity is reduced, and the staff can use the application conveniently.

Description

Technical Field

[0001] This invention relates to the field of sealing device technology, and in particular to an automatic sealing device for cardboard boxes. Background Technology

[0002] In automated packaging production lines, carton sealing is a core process that determines packaging efficiency and product transportation safety. Currently, the mainstream sealing methods in the industry are mainly divided into two categories: BOPP tape sealing and hot melt adhesive sealing. Among them, hot melt adhesive sealing has significant advantages such as high bonding strength, fast curing speed (reaching initial strength in 1-3 seconds), environmental friendliness and recyclability, and strong anti-counterfeiting properties.

[0003] Chinese utility model patent CN213083640U discloses an automatic sealing device for cardboard box packaging, including a frame. The frame has support legs at its lower end, and rollers are connected to the inner side of the frame via shafts. Support plates are fixedly connected to both sides of the lower end face of the frame, and slide rails are connected to the support plates. Conveyor frame fixing frames are symmetrically connected to both ends of the slide rails, and a conveyor frame is fixedly connected to the upper end of the conveyor frame fixing frames. Conveyor wheels are connected to both ends of the conveyor frame via shafts, and conveyor belts are connected to the conveyor wheels. A motor is mounted on the upper end of the conveyor wheels. A second [unclear - possibly a device name] is connected to the side of the conveyor frame fixing frame. The machine has a threaded rod, and a width adjustment handle is fixedly connected to one end of the second threaded rod. Vertical plates are fixedly connected to the middle of both sides of the upper end of the frame, and a fixed frame is provided inside the vertical plates. A first threaded rod is connected to a bearing inside the fixed frame, and a gear plate is keyed to the upper end of the first threaded rod. A lifting plate is connected to the first threaded rod, and an adhesive applicator is provided in the middle of the lifting plate. A pressing strip is provided on both sides of the sealing device, and the pressing strip is connected to the lifting plate via a telescopic column. A spring is provided on the telescopic column. A rotating shaft is provided at the upper end of the lifting plate, and both ends of the rotating shaft are connected to the vertical plates. A height adjustment handle is fixedly connected to one end of the rotating shaft.

[0004] Existing automatic carton sealing devices do not have the function of automatically opening flat cartons, and the carton forming process relies entirely on manual operation. Workers need to manually pull open the flat cartons, fold the bottoms, fill them with items, and then send them into the sealing machine. This repetitive mechanical action of opening, folding, and placing cartons over a long period of time can easily lead to muscle strain and increase the labor intensity of workers. Summary of the Invention

[0005] To address the aforementioned problems, the present invention provides an automatic box sealing device for cardboard boxes.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an automatic carton sealing device for cardboard boxes, comprising a mounting frame, two connecting plates fixed to one side wall of the mounting frame, a material conveying mechanism disposed between the two connecting plates, the material conveying mechanism comprising a conveyor and a centering plate for centering the carton, a moving mechanism disposed on the connecting plates, an electric suction cup I disposed on the moving mechanism, the moving mechanism being used to drive the electric suction cup I to move horizontally and rise and fall, an electric suction cup II fixed to the side wall of the mounting frame, and a sealing mechanism for automatically sealing the carton disposed on the mounting frame.

[0007] By adopting the above technical solution, the carton to be sealed is first transported to the position between the two connecting plates by the material conveying mechanism. Then, the moving mechanism drives the first electric suction cup to move horizontally and descend until the suction end of the first electric suction cup is attached to one side wall of the folded carton. The suction end of the first electric suction cup adheres to and fixes the carton wall. Then, the moving mechanism drives the first electric suction cup and the carton to move until the corresponding wall surface of the carton that is in contact with the suction end of the first electric suction cup comes into contact with the suction end of the second electric suction cup. At this time, the second electric suction cup adheres to and fixes the carton. Subsequently, the moving mechanism drives the first electric suction cup to move horizontally and descend until the corresponding wall surface of the carton that is in contact with the suction end of the first electric suction cup comes into contact with the suction end of the second electric suction cup. At this time, the second electric suction cup adheres to and fixes the carton. The first tray moves towards the mounting frame and rises until it adjusts the folded cardboard box into a box shape with a rectangular cavity inside. At this time, the first electric suction cup is directly above the second electric suction cup. Finally, the sealing mechanism seals one side of the cardboard box. After sealing, the moving mechanism and the first electric suction cup work together to move the sealed cardboard box away from the position of the second electric suction cup. The above actions can be repeated to seal the cardboard boxes one by one. The whole process does not require manual operation by the staff. It adjusts the cardboard box, which is folded into a flat sheet along the crease line, into a box shape with a rectangular cavity inside, which is convenient for the staff to use and reduces the labor intensity.

[0008] Furthermore, a through hole is provided through the side wall of the mounting bracket. The moving mechanism includes a horizontal moving mechanism and a lifting assembly. The horizontal moving mechanism includes a linear module fixed to the connecting plate, a crossbeam fixed to the moving end of the linear module, a lifting arm with an L-shaped structure set on the crossbeam, and a square tube fixed to the top of the crossbeam. The vertical section of the lifting arm passes through the crossbeam and slides with the crossbeam. The vertical section of the lifting arm passes into the square tube and slides with the square tube. An electric suction cup is set on the horizontal section of the lifting arm. The electric suction cup and the lifting arm together form a robotic arm. The vertical section of the lifting arm has a mounting hole. The lifting assembly includes a rack fixed in the mounting hole of the lifting arm and a lifting motor fixed on the square tube. The output end of the lifting motor passes through the square tube and is rotatably connected to the square tube. The lifting assembly also includes a drive gear fixedly sleeved on the output end of the lifting motor and meshing with the rack.

[0009] By adopting the above technical solution, the linear module moves its moving end along its length, which in turn drives the horizontal frame fixed to the moving end of the linear module, the lifting arm connected to the horizontal frame, the square tube fixed to the horizontal frame, and the electric suction cup connected to the lifting arm to move horizontally. The lifting motor drives the drive gear to rotate, which causes the rack meshing with the drive gear, the lifting arm fixed to the rack, and the electric suction cup connected to the lifting arm to rise and fall, thereby ensuring the normal operation of the device.

[0010] Furthermore, the sealing mechanism includes a connecting assembly and a sealing assembly. The connecting assembly includes a fixed frame mounted on a mounting bracket, a hydraulic push rod I fixed on the fixed frame, a sliding frame fixed on the moving end of the hydraulic push rod I, a drive motor fixed on the sliding frame, and a mounting box fixed on the drive motor. The mounting box has four sliding holes evenly distributed about the axis of the drive motor output end on its side wall near the electric suction cup II. The sealing assembly includes two push blocks that are slidably disposed in two of the symmetrically disposed sliding holes, and two adhesive blocks that are slidably disposed in the other two sliding holes and have an internally hollow structure. The device includes two rows of glue spray heads fixed and connected to the sidewalls of the two adhesive blocks near the electric suction cup, and telescopic tubes fixed and connected to the two adhesive blocks. The telescopic tubes are made of high-temperature resistant material. Each of the sliding holes is equipped with a sliding rod for limiting the movement of the two adhesive blocks and the push block, so as to increase the stability of the adhesive blocks and the push block when they move. The sealing mechanism also includes a glue supply component for supplying hot melt glue into the two telescopic tubes, a displacement component one, and a displacement component two. The displacement component one and the displacement component two are used together to drive the two adhesive blocks to move closer and further away from each other and to drive the two push blocks to move closer and further away from each other.

[0011] By adopting the above technical solution, after the carton is adjusted into a box shape with a rectangular cavity inside, operating the hydraulic push rod one extends its moving end, which drives the sliding frame fixed to the moving end of the hydraulic push rod one, the drive motor connected to the sliding frame, the mounting box connected to the drive motor, the push block connected to the mounting box, and the adhesive block connected to the push block to move towards the carton until the bent part at one end of the carton is located in the space formed by the adhesive block and the push block. Then, displacement component one and displacement component two drive the two adhesive blocks to move closer and further apart, while simultaneously supplying glue. The components supply hot melt adhesive into the adhesive blocks through the telescopic tube. During this process, the two adhesive blocks bend the two symmetrical bends of the carton. At the same time, the hot melt adhesive inside the adhesive blocks is sprayed out through the glue nozzle and applied to the surface of the bends. After the two adhesive blocks move away from each other and separate from the carton, displacement components one and two drive the two push blocks to move closer to each other and squeeze the other two symmetrical bends of the carton to bend and adhere to the hot melt adhesive of the previously bends. Then, the two push blocks are driven away from each other, thus completing the carton sealing operation.

[0012] Furthermore, the glue supply assembly includes a storage box fixed on a sliding frame, a first glue pump fixed on the storage box, a three-way pipe fixed and connected to the discharge end of the first glue pump, and a second glue pump fixed on the storage box. The storage box is equipped with a heating wire, and the three-way pipe is equipped with an electric heating tape. The two ends of the three-way pipe away from the first glue pump are respectively fixed and connected to two telescopic pipes. The inlet end of the first glue pump is connected to the inside of the storage box, and the discharge end of the second glue pump is connected to the inside of the storage box. The inlet end of the second glue pump is connected to a storage device containing hot melt glue and having a heating function through a pipe. The storage box is composed of a stainless steel layer and a sodium bentonite waterproof blanket layer. The sodium bentonite waterproof blanket layer wraps the stainless steel layer inside, which can effectively reduce heat loss.

[0013] By adopting the above technical solution, when the glue pump is working, it extracts the hot melt glue from the storage box and discharges it into the telescopic pipe through the three-way pipe for the normal sealing operation of the device.

[0014] Furthermore, the displacement assembly includes a tube rotatably mounted inside the mounting box, an adjusting disc fixedly sleeved on the tube, a torsion spring fixed to the adjusting disc and the inner wall of the mounting box, two adjusting shafts rotatably mounted on two adhesive blocks respectively, a drive cylinder rotatably connected to a drive motor and disposed through the side wall of the mounting box away from the adhesive blocks, and a drive column rotatably connected to the drive cylinder and disposed through the side wall of the drive cylinder. The output end of the drive motor is fixed and coaxially arranged with the drive cylinder. The tube passes through the drive cylinder and is coaxially arranged with the drive cylinder. The adjusting disc has an adjusting hole that slides with the adjusting shaft and is equal in number and position to the adjusting hole. The adjusting hole is eccentrically arranged with the tube. The outer wall of the tube has a drive hole through which the lower end of the drive column passes with clearance fit.

[0015] By employing the above technical solution, the drive motor operates, causing its output end to rotate. This, in turn, drives the drive cylinder fixed to the output end of the drive motor and the drive column connected to the drive cylinder to rotate. The drive column slides within the drive hole until its end face contacts the drive hole. At this point, the drive column drives the tube body and the adjusting disc fixed to the tube body to rotate. The torsion spring is stressed and gradually contracts. The two adjusting holes drive the two adjusting shafts to move closer to each other, thus achieving the operation of the two adhesive blocks moving closer together. The drive motor output end rotates in the opposite direction and resets, causing the drive cylinder fixed to the output end of the drive motor and the drive column connected to the drive cylinder to rotate. The drive column slides in the opposite direction within the drive hole. The torsion spring gradually expands and resets, causing the adjusting disc fixed to the torsion spring and the tube body fixed to the adjusting disc to move in the opposite direction and reset, thus achieving the operation of the two adhesive blocks moving away from each other and resetting.

[0016] Furthermore, the displacement component two includes a tube body two rotatably mounted on the inner wall of the mounting box away from the adhesive block and coaxially arranged with the drive cylinder, an adjustment plate two fixed on the end face of the tube body two, two adjustment shafts two respectively rotatably mounted on two push blocks, and a torsion spring two fixed between the adjustment plate two and the inner wall of the mounting box. The tube body two passes through the adjustment plate two and is clearance-fitted with the adjustment plate two. The drive cylinder passes into the tube body two. The adjustment plate two has adjustment holes two that slide with the adjustment shafts two and are equal in number and position to correspond to them. The adjustment holes two are eccentrically arranged with the tube body two. The outer wall of the tube body two has a drive hole two through which the upper end of the drive column passes and is clearance-fitted.

[0017] By adopting the above technical solution, after the output end of the drive motor rotates in the opposite direction and resets, the drive motor continues to rotate in the opposite direction. At this time, the drive column rotates in the opposite direction and fits with the end face of the drive hole two, so that the tube body two is subjected to force and drives the adjustment plate two fixed to the tube body two to rotate synchronously. The torsion spring two is subjected to force and gradually contracts. The two adjustment holes two drive the two adjustment shafts two to move closer to each other (during this process, the drive column slides along the drive hole one, and the tube body one is always in a stationary state), thereby realizing the operation of the two push blocks moving closer to each other.

[0018] Furthermore, an annular groove is formed on the outer wall of the mounting frame, and a rotating mechanism is provided on the mounting frame. The rotating mechanism includes an internal gear ring rotatably mounted in the annular groove and fixedly connected to the mounting frame, and a rotary motor fixed on the mounting frame. The rotating end of the rotary motor passes through the side wall of the mounting frame and is rotatably connected to the mounting frame. The rotating mechanism also includes a drive gear fixedly sleeved on the rotating end of the rotary motor and meshing with the internal gear ring.

[0019] By adopting the above technical solution, the rotating motor works to make its rotating end rotate, which in turn drives the drive gear fixed to the rotating end of the rotating motor, the internal gear ring meshing with the drive gear, and the fixing frame fixed to the internal gear ring to rotate until the sealing mechanism rotates 90 degrees as a whole. At this time, the other end of the carton containing the product can be sealed after one end is sealed.

[0020] Furthermore, the moving mechanism also includes a rotating assembly, which includes an electric rotary table fixed to the horizontal section of the sliding frame, a rectangular column fixed to the rotating end of the electric rotary table, and an electric gripper fixed to the top of the rectangular column. The electric suction cup is fixed to the bottom of the rectangular column.

[0021] By adopting the above technical solution, the electric rotary table drives the rectangular column to rotate, which in turn drives the electric gripper fixed to the rectangular column and the electric suction cup fixed to the rectangular column to rotate until the electric suction cup rotates above the electric gripper. At this time, the electric gripper, together with the lateral movement mechanism and the lifting component, can perform gripping operations on the carton that is sealed at one end and contains products.

[0022] Furthermore, the mounting frame is provided with auxiliary components, which include a side frame fixed to the mounting frame, a hydraulic pusher II fixed to the side frame, a connecting seat fixed to the movable end of the hydraulic pusher II, and an electric suction cup III fixed to the side wall of the connecting seat away from the hydraulic pusher II.

[0023] By adopting the above technical solution, after the carton is adjusted into a box shape with a rectangular cavity inside, the hydraulic pusher moves its moving end, which in turn drives the connecting seat fixed to the moving end of the hydraulic pusher and the electric suction cup three fixed to the connecting seat to move towards the carton. Finally, the connecting seat and the electric suction cup three are inserted into the cavity of the carton, providing support when the carton is sealed. Furthermore, when the two adhesive blocks bend two of the bends and apply glue, the electric suction cup three operates, its suction end adsorbing the bends to prevent the bends from flipping backwards due to the adhesive properties of the glue when the two adhesive blocks are far apart, thus avoiding interference during subsequent bending of the pusher blocks.

[0024] Furthermore, the mounting frame is provided with a conveying assembly, which includes a roller conveyor fixed in the through hole, an auxiliary block fixed to one side of the roller conveyor frame, and a limiting block fixed to the other side of the roller conveyor frame.

[0025] By adopting the above technical solution, the electric suction cup transports the sealed carton to the top of the roller of the roller conveyor, and makes the bent part of the sealed carton contact the auxiliary block, while the other end of the carton abuts against the limiting block. During the process of conveying the carton by the roller of the conveying component, the auxiliary block and the limiting block limit the bonding position of the carton to improve the bonding effect of the carton.

[0026] In summary, the present invention has the following beneficial effects: In this application, by improving the existing structure, the cardboard box folded into a flat sheet along the crease line can be adjusted into a box with a rectangular cavity inside without the need for manual operation of the prior art, which is convenient for workers to use and at the same time reduces labor intensity. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the connection structure between the roller conveyor and the auxiliary block in an embodiment of the present invention; Figure 3 This is a schematic diagram illustrating the connection structure between the side frame and the mounting frame in an embodiment of the present invention; Figure 4 This is a schematic diagram illustrating the connection structure between the connecting seat and the electric suction cup three in an embodiment of the present invention; Figure 5 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the internal structure of the mounting box; Figure 6 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the drive cylinder and the second tube; Figure 7 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the drive cylinder and the tube body; Figure 8 This is a cross-sectional schematic diagram of an embodiment of the present invention used to highlight the connection structure between the lifting arm and the square tube.

[0028] In the diagram: 1. Mounting frame; 2. Connecting plate; 3. Moving mechanism; 31. Lateral movement mechanism; 311. Linear module; 312. Cross frame; 313. Lifting arm; 314. Square tube; 32. Lifting assembly; 321. Rack; 322. Lifting motor; 323. Drive gear; 33. Rotating assembly; 331. Electric rotary table; 332. Rectangular column; 333. Electric gripper; 4. Electric suction cup one; 5. Electric suction cup two; 6. Sealing mechanism; 61. Connecting assembly; 611. Fixing frame; 612. Hydraulic push rod one; 613. Sliding frame; 614. Drive motor; 615. Mounting box; 62. Sealing assembly; 621. Push block; 622. Adhesive block; 623. Spray nozzle; 624. Telescopic tube; 63. Glue supply assembly; 631. Storage box; 632. Glue pump one; 63 3. T-joint; 634. Glue pump II; 64. Displacement assembly I; 641. Pipe body I; 642. Adjusting disc I; 643. Torsion spring I; 644. Adjusting shaft I; 645. Drive cylinder; 646. Drive column; 647. Adjusting hole I; 648. Drive hole I; 65. Displacement assembly II; 651. Pipe body II; 652. Adjusting plate II; 653. Adjusting shaft II; 654. Torsion spring II; 655. Adjusting hole II; 656. Drive hole II; 7. Through hole; 8. Sliding hole; 9. Rotating mechanism; 91. Internal gear ring; 92. Rotary motor; 93. Drive gear; 10. Auxiliary assembly; 101. Side frame; 102. Hydraulic pusher II; 103. Connecting seat; 104. Electric suction cup III; 11. Conveying assembly; 111. Roller conveyor; 112. Auxiliary block; 113. Limit block. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-8As shown in the figure, this application discloses an automatic carton sealing device for cardboard boxes, including a mounting frame 1, a moving mechanism 3, a sealing mechanism 6, a rotating mechanism 9, an auxiliary component 10, and a conveying component 11. A through hole 7 is provided through the side wall of the mounting frame 1, and two connecting plates 2 are fixed to one side wall of the mounting frame 1. A material conveying mechanism is provided between the two connecting plates 2, including a conveyor and a centering plate for aligning the carton. An electric suction cup 4 is provided on the moving mechanism 3, and an electric suction cup 5 is fixed to the side wall of the mounting frame 1. First, the carton to be sealed is conveyed to the position between the two connecting plates 2 by the feeding mechanism. Then, the moving mechanism 3 drives the electric suction cup 4 to move horizontally and descend until the suction end of the electric suction cup 4 is in contact with one side wall of the folded carton. The suction end of the electric suction cup 4 then adheres to and fixes the carton wall. Next, the moving mechanism 3 moves the electric suction cup 4 and the carton until the corresponding wall surface of the carton that is in contact with the suction end of the electric suction cup 4 comes into contact with the suction end of the electric suction cup 5. At this time, the electric suction cup 5 adheres to and fixes the carton. Then, the moving mechanism 3 moves the electric suction cup 4 towards... Move towards the mounting bracket 1 and rise until the folded cardboard box is adjusted into a box shape with a rectangular cavity inside. At this time, the electric suction cup 4 is directly above the electric suction cup 5. Finally, the sealing mechanism 6 seals one side of the cardboard box. After sealing, the moving mechanism 3 and the electric suction cup 4 work together to move the sealed cardboard box away from the position of the electric suction cup 5. Repeat the above actions to seal the cardboard boxes one by one. The whole process does not require manual operation by the staff. The cardboard box, which is folded into a flat sheet along the crease line, is adjusted into a box shape with a rectangular cavity inside, which is convenient for the staff to use and reduces the labor intensity.

[0031] The moving mechanism 3 is mounted on the mounting frame 1 and is used to drive the electric suction cup 4 to move horizontally and lift vertically. The moving mechanism 3 includes a horizontal movement mechanism 31, a lifting assembly 32, and a rotating assembly 33. The horizontal movement mechanism 31 includes a linear module 311, a horizontal frame 312, a lifting arm 313, and a square tube 314. The linear module 311 is fixed to the connecting plate 2, and the horizontal frame 312 is fixed to the moving end of the linear module 311. The lifting arm 313 is mounted on the horizontal frame 312 and has an L-shaped structure. The vertical section of the lifting arm 313 passes through the horizontal frame 312 and slides in cooperation with it. The vertical section of the lifting arm 313 passes into the square tube 314 and slides in cooperation with it. The electric suction cup 4 is mounted on the horizontal section of the lifting arm 313. The electric suction cup 4 and the lifting arm 313 together form a robotic arm. The vertical section of the lifting arm 313 has mounting holes, and the square tube 314 is fixed to the top of the horizontal frame 312. The lifting assembly 32 includes a rack 321, a lifting motor 322, and a drive gear 323. The rack 321 is fixed in the mounting hole of the lifting arm 313. The lifting motor 322 is fixed on the square tube 314, and the output end of the lifting motor 322 passes through the square tube 314 and is rotatably connected to the square tube 314. The drive gear 323 is fixedly sleeved on the output end of the lifting motor 322 and meshes with the rack 321. When the linear module 311 operates, its moving end moves along its length, which in turn drives the horizontal frame 312 fixed to the moving end of the linear module 311, the lifting arm 313 connected to the horizontal frame 312, the square tube 314 fixed to the horizontal frame 312, and the electric suction cup 4 connected to the lifting arm 313 to move horizontally. When the lifting motor 322 operates, it drives the drive gear 323 to rotate, which causes the rack 321 meshing with the drive gear 323, the lifting arm 313 fixed to the rack 321, and the electric suction cup 4 connected to the lifting arm 313 to rise and fall, thereby ensuring the normal operation of the device.

[0032] The rotating assembly 33 includes an electric rotary table 331, a rectangular column 332, and an electric gripper 333. The electric rotary table 331 is fixed to the horizontal section of the sliding frame 313. An electric suction cup 4 is fixed to the bottom of the rectangular column 332, which is fixed to the rotating end of the electric rotary table 331. The electric gripper 333 is fixed to the top of the rectangular column 332. When the electric rotary table 331 operates, it drives the rectangular column 332 to rotate, which in turn drives the electric gripper 333 and the electric suction cup 4, both fixed to the rectangular column 332, to rotate until the electric suction cup 4 rotates above the electric gripper 333. At this point, the electric gripper 333, in conjunction with the transverse mechanism 31 and the lifting assembly 32, can grip a carton that is sealed at one end and contains products.

[0033] A sealing mechanism 6 is mounted on a mounting frame 1 and is used for automatically sealing cartons. The sealing mechanism 6 includes a connecting component 61, a sealing component 62, a glue supply component 63, a first displacement component 64, and a second displacement component 65. The connecting component 61 includes a fixed frame 611, a first hydraulic push rod 612, a sliding frame 613, a drive motor 614, and a mounting box 615. The fixed frame 611 is mounted on the mounting frame 1, and the first hydraulic push rod 612 is fixed to the fixed frame 611. The sliding frame 613 is fixed to the moving end of the first hydraulic push rod 612, and the drive motor 614 is fixed to the sliding frame 613. The mounting box 615 is fixed to the drive motor 614, and four sliding holes 8, evenly distributed along the axis of the output end of the drive motor 614, are provided through the side wall of the mounting box 615 near the second electric suction cup 5. The sealing assembly 62 includes push blocks 621, adhesive blocks 622, glue spray heads 623, and telescopic tubes 624. Two push blocks 621 are provided, each slidingly disposed within one of two symmetrically arranged sliding holes 8. Two adhesive blocks 622 are provided, each slidingly disposed within the other two sliding holes 8 and having an internally hollow structure. Each sliding hole 8 is equipped with a sliding rod for limiting the movement of the two adhesive blocks 622 and the push blocks 621, thereby increasing the stability of their movement. Two rows of glue spray heads 623 are provided, each fixed and connected to the sidewall of one adhesive block 622 near the electric suction cup 5. Two telescopic tubes 624 are provided, each fixed and connected to one adhesive block 622, and are made of a high-temperature resistant material. After the carton is adjusted into a box shape with a rectangular cavity inside, the hydraulic push rod 612 is operated to extend its moving end. This causes the sliding frame 613, which is fixed to the moving end of the hydraulic push rod 612, the drive motor 614 connected to the sliding frame 613, the mounting box 615 connected to the drive motor 614, the push block 621 connected to the mounting box 615, and the adhesive block 622 connected to the push block 621 to all move towards the carton until the bent part at one end of the carton is located in the space formed by the adhesive block 622 and the push block 621. Then, the displacement component 64 and the displacement component 65 drive the two adhesive blocks 622 to move closer and further apart. The glue supply assembly 63 supplies hot melt adhesive into the adhesive block 622 through the telescopic tube 624. During this process, the two adhesive blocks 622 bend the two symmetrical bends of the carton. At the same time, the hot melt adhesive in the adhesive block 622 is sprayed out through the glue spray head 623 and applied to the surface of the bend. After the two adhesive blocks 622 move away from each other and separate from the carton, the displacement assembly 1 64 and the displacement assembly 2 65 drive the two push blocks 621 to move closer to each other and squeeze the other two symmetrical bends of the carton to bend and stick to the hot melt adhesive of the previously bends. Then, the two push blocks 621 are driven away from each other, thereby completing the carton sealing operation.

[0034] The glue supply assembly 63 is used to supply hot melt glue to the two telescopic pipes 624. The glue supply assembly 63 includes a storage tank 631, a first glue pump 632, a three-way pipe 633, and a second glue pump 634. The storage tank 631 is composed of a stainless steel layer and a sodium bentonite waterproof blanket layer. The sodium bentonite waterproof blanket layer wraps around the stainless steel layer, which can effectively reduce heat loss. The storage tank 631 is fixed on the sliding frame 613. A heating wire is installed inside the storage tank 631. The first glue pump 632 is fixed on the storage tank 631. The inlet end of the first glue pump 632 is connected to the inside of the storage tank 631. The three-way pipe 633 is fixed and connected to the outlet end of the first glue pump 632. An electric heating tape is installed on the three-way pipe 633. The two ends of the three-way pipe 633 away from the first glue pump 632 are fixed and connected to the two telescopic pipes 624 respectively. The second glue pump 634 is fixed on the storage tank 631. The discharge end of the second glue pump 634 is connected to the storage tank 631, and the inlet end of the second glue pump 634 is connected to the storage device containing hot melt glue and having a heating function through a pipe. When the first glue pump 632 is working, it extracts the hot melt glue from the storage tank 631 and discharges it into the telescopic pipe 624 through the three-way pipe 633 for normal sealing operation of the device.

[0035] Displacement assembly 64 and displacement assembly 65 work together to drive the two adhesive blocks 622 to move closer and further apart, and to drive the two push blocks 621 to move closer and further apart. Displacement assembly 64 includes a tube body 641, an adjusting disc 642, a torsion spring 643, an adjusting shaft 644, a drive cylinder 645, and a drive column 646. The tube body 641 is rotatably mounted inside the mounting box 615, and the adjusting disc 642 is fixedly sleeved on the tube body 641. The adjusting disc 642 has adjusting holes 647 that slide and correspond equally in position to the adjusting shaft 644, and the adjusting holes 647 are eccentrically positioned relative to the tube body 641. The torsion spring 643 is fixed to the inner wall of the adjusting disc 642 and the mounting box 615, and there are two adjusting shafts 644. Two adjusting shafts 644 are rotatably mounted on two adhesive blocks 622 respectively. A drive cylinder 645 is inserted through the side wall of the mounting box 615 away from the adhesive block 622 and is rotatably connected to the drive motor 614. The output end of the drive motor 614 is fixed to the drive cylinder 645 and is coaxially arranged. A tube 641 is inserted into the drive cylinder 645 and is coaxially arranged with the drive cylinder 645. A drive column 646 is inserted through the side wall of the drive cylinder 645 and is rotatably connected to the drive cylinder 645. The outer wall of the tube 641 is provided with a drive hole 648 through which the lower end of the drive column 646 is inserted and clearance-fitted. The drive motor 614 operates, causing its output end to rotate, which in turn drives the drive cylinder 645, which is fixed to the output end of the drive motor 614, and the drive column 646 connected to the drive cylinder 645 to rotate. The drive column 646 slides along the drive hole 648 until the drive column 646 is in contact with the end face of the drive hole 648. At this time, the drive column 646 drives the tube body 641 and the adjustment disc 642, which is fixed to the tube body 641, to rotate. The torsion spring 643 is stressed and gradually contracts. The two adjustment holes 647 drive the two adjustment shafts 644 to move closer to each other, thereby realizing the operation of the two adhesive blocks 622 moving closer to each other. The output end of the drive motor 614 rotates in the opposite direction and resets, thereby driving the drive cylinder 645 fixed to the output end of the drive motor 614 and the drive column 646 connected to the drive cylinder 645 to rotate. The drive column 646 slides in the opposite direction along the drive hole 648, and the torsion spring 643 gradually expands and resets, driving the adjustment plate 642 fixed to the torsion spring 643 and the tube 641 fixed to the adjustment plate 642 to move in the opposite direction and reset, thereby realizing the operation of the two adhesive blocks 622 moving away from each other and resetting.

[0036] The displacement assembly 65 includes a tube 651, an adjusting plate 652, an adjusting shaft 653, and a torsion spring 654. The tube 651 is rotatably mounted on the inner wall of the mounting box 615 on the side away from the adhesive block 622 and is coaxially arranged with the drive cylinder 645. A drive hole 656 is provided through the outer wall of the tube 651 for the upper end of the drive column 646 to pass through and be clearance-fitted. The drive cylinder 645 passes into the tube 651. The adjusting plate 652 is fixed to the end face of the tube 651, and the tube 641 passes through the adjusting plate 652 and is clearance-fitted with the adjusting plate 652. The adjusting plate 652 has adjusting holes 655 that are slidably fitted with the adjusting shaft 653 and are equidistant from the tube 651. Two adjusting shafts 653 are provided, and the two adjusting shafts 653 are rotatably mounted on the two push blocks 621 respectively. The torsion spring 654 is fixed between the adjusting plate 652 and the inner wall of the mounting box 615. After the output end of the drive motor 614 rotates in the reverse direction and resets, the drive motor 614 continues to rotate in the reverse direction. At this time, the drive column 646 rotates in the reverse direction and fits against the end face of the drive hole 656, so that the tube body 651 is subjected to force and drives the adjusting plate 652 fixed to the tube body 651 to rotate synchronously. The torsion spring 654 gradually contracts under the force, and the two adjusting holes 655 drive the two adjusting shafts 653 to move closer to each other (during this process, the drive column 646 slides along the drive hole 648, and the tube body 641 remains stationary), thereby realizing the operation of the two push blocks 621 moving closer to each other.

[0037] An annular groove is formed on the outer wall of the mounting frame 1, and a rotating mechanism 9 is mounted on the mounting frame 1. The rotating mechanism 9 includes an internal gear ring 91, a rotary motor 92, and a drive gear 93. The internal gear ring 91 is rotatably mounted in the annular groove and fixedly connected to the fixing frame 611. The rotary motor 92 is fixed to the mounting frame 1, and its rotating end passes through the side wall of the mounting frame 1 and is rotatably connected to the mounting frame 1. The drive gear 93 is fixedly sleeved on the rotating end of the rotary motor 92 and meshes with the internal gear ring 91. When the rotary motor 92 operates, its rotating end rotates, which in turn drives the drive gear 93 fixed to the rotating end of the rotary motor 92, the internal gear ring 91 meshing with the drive gear 93, and the fixing frame 611 fixed to the internal gear ring 91 to rotate until the sealing mechanism 6 rotates 90 degrees as a whole. At this point, the other end of the carton containing the product can be sealed after one end has been sealed.

[0038] Auxiliary component 10 is mounted on mounting frame 1. Auxiliary component 10 includes side frame 101, hydraulic pusher 2 102, connecting seat 103, and electric suction cup 3 104. Side frame 101 is fixed to mounting frame 1, and hydraulic pusher 2 102 is fixed to side frame 101. Connecting seat 103 is fixed to the moving end of hydraulic pusher 2 102, and electric suction cup 3 104 is fixed to the wall surface of connecting seat 103 away from hydraulic pusher 2 102. After the carton is adjusted into a box shape with a rectangular cavity inside, hydraulic pusher 2 102 operates to move its moving end, which in turn drives connecting seat 103 fixed to the moving end of hydraulic pusher 2 102 and electric suction cup 3 104 fixed to connecting seat 103 to move towards the carton. Finally, connecting seat 103 and electric suction cup 3 104 both penetrate into the cavity of the carton, providing support when the carton is sealed. Furthermore, when the two adhesive blocks 622 bend two of the bending parts and spray glue, the electric suction cup 3 104 works to adsorb the bending parts with its adsorption end, so as to avoid the bending parts from flipping in the opposite direction due to the adhesiveness of the glue when the two adhesive blocks 622 are far apart, which would cause interference when the subsequent push block 621 bends.

[0039] The conveying assembly 11 is mounted on the mounting frame 1 and includes a roller conveyor 111, an auxiliary block 112, and a limiting block 113. The roller conveyor 111 is fixed inside the through hole 7, the auxiliary block 112 is fixed to one side of the roller conveyor 111 frame, and the limiting block 113 is fixed to the other side of the roller conveyor 111 frame. The electric suction cup 4 transports the cardboard box, sealed at one end, to the top of the roller of the roller conveyor 111, and makes the bent part of the sealed cardboard box contact the auxiliary block 112, while the other end of the cardboard box abuts against the limiting block 113. During the conveying process of the roller of the conveying assembly 11, the auxiliary block 112 and the limiting block 113 limit the bonding position of the cardboard box to improve the bonding effect.

[0040] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An automatic box sealing device for cardboard boxes, characterized in that: The device includes a mounting frame (1), on one side wall of the mounting frame (1) are two connecting plates (2), a moving mechanism (3) is provided on the connecting plate (2), an electric suction cup (4) is provided on the moving mechanism (3), the moving mechanism (3) is used to drive the electric suction cup (4) to move horizontally and lift up, an electric suction cup (5) is fixed on the side wall of the mounting frame (1), and a sealing mechanism (6) for automatically sealing cartons is provided on the mounting frame (1).

2. The automatic box sealing device for cardboard boxes according to claim 1, characterized in that: The mounting bracket (1) has a through hole (7) on its side wall. The moving mechanism (3) includes a horizontal moving mechanism (31) and a lifting assembly (32). The horizontal moving mechanism (31) includes a linear module (311) fixed on the connecting plate (2), a crossbeam (312) fixed on the moving end of the linear module (311), a lifting arm (313) set on the crossbeam (312), and a square tube (314) fixed on the top of the crossbeam (312). The vertical section of the lifting arm (313) passes through the crossbeam (312) and slides with the crossbeam (312). The vertical section of the lifting arm (313) passes into the square tube (314) and slides with the square tube (314). The electric suction cup (4) is set on the horizontal section of the lifting arm (313). The electric suction cup (4) and the lifting arm (313) together form a robotic arm. The vertical section of the lifting arm (313) has an installation hole. The lifting assembly (32) includes a rack (321) fixed in the installation hole of the lifting arm (313) and a lifting motor (322) fixed on the square tube (314). The output end of the lifting motor (322) passes through the square tube (314) and is rotatably connected to the square tube (314). The lifting assembly (32) also includes a drive gear (323) fixedly sleeved on the output end of the lifting motor (322) and meshing with the rack (321).

3. The automatic box sealing device for cardboard boxes according to claim 1, characterized in that: The sealing mechanism (6) includes a connecting assembly (61) and a sealing assembly (62). The connecting assembly (61) includes a fixed frame (611) mounted on the mounting frame (1), a hydraulic push rod (612) fixed on the fixed frame (611), a sliding frame (613) fixed on the moving end of the hydraulic push rod (612), a drive motor (614) fixed on the sliding frame (613), and a mounting box (615) fixed on the drive motor (614). The mounting box (615) has a sliding hole (8) through it on the side wall near the electric suction cup (5). The sealing assembly (62) includes two pieces that are slidably mounted on two of the symmetrically arranged sliding holes (8). The sealing mechanism (6) includes an inner push block (621), two adhesive blocks (622) that are slidably disposed in two other sliding holes (8) and have an internal hollow structure, two rows of glue spray heads (623) that are fixed and connected to the side wall of the two adhesive blocks (622) near the electric suction cup (5) and a telescopic tube (624) that is fixed and connected to the two adhesive blocks (622). The sealing mechanism (6) also includes a glue supply component (63), a displacement component one (64) and a displacement component two (65). The displacement component one (64) and the displacement component two (65) are used together to drive the two adhesive blocks (622) to move closer and further away from each other and to drive the two push blocks (621) to move closer and further away from each other.

4. An automatic carton sealing device for cardboard boxes according to claim 3, characterized in that: The glue supply assembly (63) includes a storage box (631) fixed on a sliding frame (613), a first glue pump (632) fixed on the storage box (631), a three-way pipe (633) fixed and connected to the discharge end of the first glue pump (632), and a second glue pump (634) fixed on the storage box (631). A heating wire is installed inside the storage box (631), and an electric heating tape is installed on the three-way pipe (633). The two ends of the three-way pipe (633) furthest from the first glue pump (632) are respectively connected to… Two telescopic pipes (624) are fixed and connected. The feed end of the first glue pump (632) is connected to the inside of the storage box (631), and the discharge end of the second glue pump (634) is connected to the inside of the storage box (631). The feed end of the second glue pump (634) is connected to the storage device containing hot melt glue and having a heating function through a pipe. The storage box (631) is composed of a stainless steel layer and a sodium bentonite waterproof blanket layer. The sodium bentonite waterproof blanket layer wraps the stainless steel layer inside, which can effectively reduce the heat dissipation.

5. An automatic carton sealing device for cardboard boxes according to claim 4, characterized in that: The displacement assembly (64) includes a tube (641) rotatably mounted inside the mounting box (615), an adjusting disc (642) fixedly sleeved on the tube (641), a torsion spring (643) fixed to the adjusting disc (642) and the inner wall of the mounting box (615), two adjusting shafts (644) rotatably mounted on two adhesive blocks (622), a drive cylinder (645) penetrating the side wall of the mounting box (615) away from the adhesive block (622) and rotatably connected to the drive motor (614), and a drive cylinder (645) penetrating the side wall of the drive cylinder (645) and rotatably connected to the drive cylinder (614). The drive column (646) is rotatably connected. The output end of the drive motor (614) is fixed and coaxially arranged with the drive cylinder (645). The tube body (641) is inserted into the drive cylinder (645) and coaxially arranged with the drive cylinder (645). The adjustment plate (642) is provided with adjustment holes (647) that are slidably matched with the adjustment shaft (644) and are in the same number and position. The adjustment holes (647) are eccentrically arranged with the tube body (641). The outer wall of the tube body (641) is provided with a drive hole (648) through which the lower end of the drive column (646) is inserted and clearance matched.

6. An automatic carton sealing device for cardboard boxes according to claim 5, characterized in that: The displacement assembly two (65) includes a tube two (651) rotatably mounted on the inner wall of the mounting box (615) away from the adhesive block (622) and coaxially arranged with the drive cylinder (645), an adjusting plate two (652) fixed on the end face of the tube two (651), two adjusting shafts two (653) rotatably mounted on the two push blocks (621) respectively, and a torsion spring two (654) fixed between the adjusting plate two (652) and the inner wall of the mounting box (615). The tube one (641) passes through... Adjusting plate two (652) and clearance fit with adjusting plate two (652), the drive cylinder (645) is inserted into tube body two (651), the adjusting plate two (652) is provided with adjusting holes two (655) that are slidably fitted with adjusting shaft two (653) and are in the same number and position, the adjusting holes two (655) are eccentrically set with tube body two (651), and the outer wall of tube body two (651) is provided with driving holes two (656) through which the upper end of driving column (646) is inserted and clearance fit.

7. An automatic box sealing device for cardboard boxes according to claim 3, characterized in that: The mounting frame (1) has an annular groove on its outer wall. The mounting frame (1) is provided with a rotating mechanism (9). The rotating mechanism (9) includes an internal gear ring (91) that is rotatably installed in the annular groove and fixedly connected to the fixing frame (611) and a rotary motor (92) fixed on the mounting frame (1). The rotating end of the rotary motor (92) passes through the side wall of the mounting frame (1) and is rotatably connected to the mounting frame (1). The rotating mechanism (9) also includes a drive gear (93) that is fixedly sleeved on the rotating end of the rotary motor (92) and meshes with the internal gear ring (91).

8. An automatic carton sealing device for cardboard boxes according to claim 2, characterized in that: The moving mechanism (3) further includes a rotating component (33), which includes an electric rotating table (331) fixed on the horizontal section of the sliding frame (313), a rectangular column (332) fixed on the rotating end of the electric rotating table (331), and an electric gripper (333) fixed on the top of the rectangular column (332). The electric suction cup (4) is fixed to the bottom of the rectangular column (332).

9. An automatic carton sealing device for paper boxes according to claim 1, characterized in that: The mounting frame (1) is provided with an auxiliary component (10), which includes a side frame (101) fixed on the mounting frame (1), a hydraulic pusher (102) fixed on the side frame (101), a connecting seat (103) fixed on the movable end of the hydraulic pusher (102), and an electric suction cup (104) fixed on the side wall of the connecting seat (103) away from the hydraulic pusher (102).

10. An automatic box sealing device for cardboard boxes according to claim 2, characterized in that: The mounting frame (1) is provided with a conveying assembly (11), which includes a roller conveyor (111) fixed in the through hole (7), an auxiliary block (112) fixed on one side of the roller conveyor (111) frame, and a limiting block (113) fixed on the other side of the roller conveyor (111) frame.

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