Automatic production line for assembling and forming multi-material three-dimensional packaging boxes

Abstract

The invention relates to the technical field of packaging box assembling and forming, and provides a multi-material three-dimensional packaging box assembling and forming automatic production line which comprises a paper box conveying mechanism, an iron box unstacking mechanism, an iron box conveying mechanism and a converging and forming mechanism. By integrating the paper box conveying mechanism, the iron box unstacking mechanism, the iron box conveying mechanism and the confluence forming mechanism, automatic assembly collaboration of paper boxes and iron boxes is achieved, the problems of process dispersion and unsmooth connection are solved, the production efficiency and the assembly precision are improved, the product percent of pass is guaranteed, and the large-scale production requirement is met.

Description

Technical Field

[0001] This invention relates to the field of packaging box assembly and molding technology, and more specifically, to an automated production line for assembling and molding multi-material three-dimensional packaging boxes. Background Technology

[0002] With the rapid development of the packaging industry, multi-material composite packaging boxes, combining the structural strength and aesthetic appeal of different materials, are widely used in the packaging of high-end products such as wine and gifts. Among these, the base box structure combining paper and metal boxes is particularly common. To meet the market's dual demands for both the quantity and quality of packaging boxes, automated production lines are gradually becoming a core trend in the industry. The assembly and molding of multi-material packaging boxes involves multiple processes, placing higher demands on the coordination and automation of these processes.

[0003] In existing technologies, the assembly of multi-material packaging boxes often relies on scattered single-machine equipment to complete a single process, and then connects each process through a simple conveying device. However, each process is mostly operated independently, and the connection between paper box forming, iron box destacking, glue scraping, assembly and other links is poor. The simple process chain not only wastes production space, but also has the problem of mismatch in conveying rhythm, resulting in low production efficiency and difficulty in adapting to large-scale, high-precision production scenarios. Summary of the Invention

[0004] The purpose of this invention is to provide an automated production line for assembling and molding multi-material three-dimensional packaging boxes, which solves the problems of scattered single machines, poor process connection, low efficiency, and difficulty in adapting to large-scale high-precision production when assembling multi-material packaging boxes.

[0005] This invention is achieved through the following technical solution: an automatic production line for assembling and forming multi-material three-dimensional packaging boxes, including a paper box conveying mechanism, a metal box destacking mechanism, a metal box conveying mechanism, and a merging and forming mechanism;

[0006] The paper box conveying mechanism is connected to the confluence forming mechanism and is used to convey unfolded paper boxes to the confluence forming mechanism. The tin box destacking mechanism includes a horizontal conveyor belt and a first frame. One end of the horizontal conveyor belt is used to place several pallets stacked and fully loaded with tin boxes. The other end of the horizontal conveyor belt is provided with a recycling area for recycling empty pallets. The first frame is vertically mounted above the middle of the horizontal conveyor belt. The first frame is provided with a lifting mechanism, a fixing mechanism and a pushing mechanism. The lifting mechanism is used to vertically lift or lower the pallets. The fixing mechanism is used to fix the lifted pallets. The pushing mechanism is used to horizontally push the tin boxes on the pallets to the tin box conveying mechanism. The merging forming mechanism is used to insert the tin boxes conveyed by the tin box conveying mechanism into the cardboard boxes and to press the cardboard boxes and tin boxes together.

[0007] Furthermore, the infeed end of the paper box conveying mechanism is connected to an in-box glue applicator, which is used to apply glue to the inside of the paper box opening around the perimeter.

[0008] Furthermore, the in-box glue application mechanism includes a conveyor belt, a first glue scraping mechanism, a second glue scraping mechanism, and a rotating box assembly. The rotating box assembly is respectively arranged at the material receiving end of the first glue scraping mechanism and between the first glue scraping mechanism and the second glue scraping mechanism. The rotating box assembly includes an arc-shaped guide plate fixed to one side of the conveyor belt and a dial rotatably connected to the other side of the conveyor belt. The dial cooperates with the arc-shaped guide plate to rotate the carton horizontally by 90°.

[0009] Furthermore, both the first and second glue-scraping mechanisms include a fixing component, which includes a material-blocking cylinder, a pressing cylinder, a material-pushing cylinder, and a positioning cylinder. The output end of the material-blocking cylinder is connected to a baffle for blocking the forward movement of the carton. The output end of the pressing cylinder is connected to the material-pushing cylinder to drive the material-pushing cylinder to move horizontally along the carton conveying direction. The output end of the material-pushing cylinder is connected to a lever that abuts against the carton. The positioning cylinders are arranged on both sides of the conveyor belt, and the output end of the positioning cylinders is connected to a positioning plate for pressing against the carton.

[0010] Furthermore, both the first and second glue-scraping mechanisms also include a lifting platform, on which a translation platform is vertically and movably connected, and a glue gun is horizontally mounted on the translation platform along the paper box conveying direction.

[0011] Furthermore, the merging and forming mechanism includes a feeding conveyor belt, a pressing platform, a discharging conveyor belt, and a third frame. The feeding conveyor belt, the pressing platform, and the discharging conveyor belt are arranged parallel to each other below the third frame. A translation mechanism is provided on the third frame. A vertical translation mechanism is provided on the translation mechanism, moving horizontally in a straight line perpendicular to the conveying direction of the cardboard box and the tin box. A support is vertically and movably connected to the vertical translation mechanism. The support is provided with a first gripper and a pressure plate. The first gripper is used to transfer the assembled cardboard box and tin box from the feeding conveyor belt to the pressing platform. The pressure plate cooperates with the pressing platform to press the cardboard box and the tin box. The pressure plate is provided with a suction cup to transfer the pressed cardboard box and the tin box from the pressing platform to the discharging conveyor belt.

[0012] Furthermore, the confluence forming mechanism includes a carton conveyor belt, a metal box conveyor belt, and a second frame. The second frame is equipped with a positioning linear driver and a clamping linear driver on the carton conveyor belt. The output ends of the positioning linear driver and the clamping linear driver are connected to a locking block that abuts against the vertical edge of the carton. The locking blocks of the positioning linear driver and the clamping linear driver cooperate with each other to clamp and fix the carton.

[0013] Furthermore, a translation component is provided on the second frame, and a lifting component is provided on the translation component to move horizontally in a straight line perpendicular to the conveying direction of the cardboard box and the metal box. The lifting component is vertically movably connected to a second gripper for holding the metal box.

[0014] Furthermore, the second frame is equipped with a material-stopping linear drive on the iron box conveyor belt, and the output end of the material-stopping linear drive is connected to a stop bar for blocking the iron box from moving forward.

[0015] Furthermore, a limit linear actuator is also provided on the first frame, and the output end of the limit linear actuator is connected to a limit rod for limiting the movement of the iron box to the iron box conveying mechanism.

[0016] The present invention has at least the following advantages and beneficial effects: by integrating the paper box conveying, iron box destacking, iron box conveying and merging forming mechanism, it realizes the automated assembly and coordination of paper boxes and iron boxes, solves the problems of scattered processes and poor connection, improves production efficiency and assembly accuracy, ensures product qualification rate, and adapts to the needs of large-scale production. Attached Figure Description

[0017] Figure 1 This is a top view of an automated production line for assembling and molding multi-material three-dimensional packaging boxes, provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the iron box destacking mechanism in an automated production line for assembling and molding multi-material three-dimensional packaging boxes, as provided by the present invention.

[0019] Figure 3 This is a partial schematic diagram of the iron box destacking mechanism in an automated production line for assembling and molding multi-material three-dimensional packaging boxes provided by the present invention.

[0020] Figure 4 This is a partial schematic diagram of another iron box destacking mechanism in an automated production line for assembling and molding multi-material three-dimensional packaging boxes provided by the present invention.

[0021] Figure 5 This is a schematic diagram of the internal glue-applying mechanism in an automated production line for assembling and molding multi-material three-dimensional packaging boxes, as provided by the present invention.

[0022] Figure 6 This is a structural diagram showing the position of the first glue scraping mechanism in an automated production line for assembling and molding multi-material three-dimensional packaging boxes, as provided by the present invention.

[0023] Figure 7 This is a structural diagram showing the position of the second glue scraping mechanism in an automated production line for assembling and molding multi-material three-dimensional packaging boxes, as provided by the present invention.

[0024] Figure 8 This is a schematic diagram of the second frame position in an automated production line for assembling and molding multi-material three-dimensional packaging boxes, provided by the present invention.

[0025] Figure 9 This is a partial schematic diagram of the position of the second frame in an automated production line for assembling and molding multi-material three-dimensional packaging boxes provided by the present invention.

[0026] Figure 10 This is a schematic diagram of the third frame position in an automated production line for assembling and molding multi-material three-dimensional packaging boxes, provided by the present invention.

[0027] Figure 11 This is a partial schematic diagram of the position of the third frame in an automated production line for assembling and molding multi-material three-dimensional packaging boxes provided by the present invention.

[0028] Reference numerals: 1-In-box glue application mechanism, 11-Transfer conveyor belt, 12-First glue scraping mechanism, 121-Blocking cylinder, 122-Pressure cylinder, 123-Pushing cylinder, 124-Positioning cylinder, 13-Second glue scraping mechanism, 131-Lifting platform, 132-Transfer platform, 133-Glue gun, 14-Turnbox assembly, 141-Arc guide plate, 142-Dial plate, 2-Carton conveying mechanism, 3-Iron box destacking mechanism, 31-Horizontal conveyor belt, 32-First frame, 321-Limit linear actuator, 322-Limit rod, 33-Pattern, 34-Recycling area, 35-Lifting mechanism, 3 6-Fixing mechanism, 37-Pushing mechanism, 4-Iron box conveying mechanism, 5-Merging and forming mechanism, 51-Feeding conveyor belt, 52-Pressure platform, 53-Discharging conveyor belt, 54-Third frame, 541-Translation mechanism, 542-Vertical movement mechanism, 543-Bracket, 544-First gripper, 545-Pressure plate, 55-Carton conveyor belt, 56-Iron box conveyor belt, 57-Second frame, 571-Positioning linear drive, 572-Clamping linear drive, 573-Clamping block, 574-Translation assembly, 575-Lifting assembly, 576-Second gripper, 577-Stopping linear drive. Detailed Implementation

[0029] The specific implementation method is described below with reference to the accompanying drawings.

[0030] Example like Figures 1 to 11 As shown, this embodiment mainly discloses an automatic production line for assembling and forming multi-material three-dimensional packaging boxes, including a paper box conveying mechanism 2, a metal box destacking mechanism 3, a metal box conveying mechanism 4, and a merging and forming mechanism 5. The paper box conveying mechanism 2 is connected to the merging forming mechanism 5 and is used to convey unfolded paper boxes to the merging forming mechanism 5. After being processed by the pre-process, the paper box is unfolded into a three-dimensional paper box with an open top, and then conveyed to the merging forming mechanism 5.

[0031] The tin box destacking mechanism 3 includes a horizontal conveyor belt 31 and a first frame 32. One end of the horizontal conveyor belt 31 is used to place several pallets 33 stacked and fully loaded with tin boxes. The other end of the horizontal conveyor belt 31 is provided with a recycling area 34 for recycling empty pallets 33. The first frame 32 is vertically mounted above the middle of the horizontal conveyor belt 31. The first frame 32 is provided with a lifting mechanism 35, a fixing mechanism 36, and a pushing mechanism 37. The lifting mechanism 35 is used to vertically lift or lower the pallets 33. The fixing mechanism 36 is used to fix the lifted pallets 33. The pushing mechanism 37 is used to horizontally push the tin boxes on the pallets 33 to the tin box conveying mechanism 4. Specifically, the horizontal conveyor belt 31 is a chain plate type conveyor belt. The lifting mechanism 35 includes a lifting transmission chain, a motor, and a reducer. The motor drives the transmission chain to realize the vertical lifting of the pallets 33. The fixing mechanism 36 consists of two sets of symmetrically arranged linear cylinders. The output end of the cylinder is connected to an L-shaped plate to clamp the two sides of the pallets 33. The pushing mechanism 37 includes a feeding plate and a horizontal pushing cylinder. The iron box conveying mechanism 4 is a synchronous conveyor belt, and its end is connected to the confluence forming mechanism 5.

[0032] In practice, stacked pallets 33 fully loaded with iron boxes are transferred to one end of the horizontal conveyor belt 31 via pallet jacks. Support blocks are installed between each layer of pallets 33. After being lifted by the lifting mechanism 35 and positioned by the fixing mechanism 36, the pushing mechanism 37 pushes the top layer of iron boxes to the iron box conveying mechanism 4. Empty pallets 33 are suspended in the air by the fixing mechanism 36. When the next layer of pallets 33 carrying iron boxes rises, the support blocks lift the upper layer of pallets 33, and the linear cylinder output shaft of the fixing mechanism 36 retracts until the iron boxes reach the working surface of the pushing mechanism 37. Then, the linear cylinder output shaft re-extends to fix the next layer of pallets 33, and so on, to achieve the stacking of empty pallets 33. When all the iron boxes in a stack of pallets 33 have been conveyed, the fixing mechanism 36 is released, and the stacked empty pallets 33 fall onto the horizontal conveyor belt 31 via the lifting mechanism 35, and are then conveyed to the recycling area 34 at the rear end via the horizontal conveyor belt 31.

[0033] The merging and forming mechanism 5 is used to insert the iron box conveyed by the iron box conveying mechanism 4 into the paper box and press the paper box and iron box together, integrating the insertion and pressing functions.

[0034] Furthermore, in specific implementation, such as Figure 1 As shown, in the embodiment of the present invention, the receiving end of the paper box conveying mechanism 2 is connected to an in-box glue applicator 1, which is used to apply glue to the inner perimeter of the paper box opening. Specifically, among the four sides of the paper box, two opposite sides are provided with grooves, and the glue applicator area covers both the grooved and non-grooved surfaces of the inner side of the paper box opening.

[0035] Furthermore, in specific implementation, such as Figure 1 , Figures 5 to 7As shown, the in-box glue application mechanism 1 provided in this embodiment of the invention includes a conveyor belt 11, a first glue scraping mechanism 12, a second glue scraping mechanism 13, and a rotating box assembly 14. The rotating box assembly 14 is respectively arranged between the material receiving end of the first glue scraping mechanism 12 and between the first glue scraping mechanism 12 and the second glue scraping mechanism 13. The rotating box assembly 14 includes an arc-shaped guide plate 141 fixed to one side of the conveyor belt 11 and a dial 142 rotatably connected to the other side of the conveyor belt 11. The dial 142 cooperates with the arc-shaped guide plate 141 to rotate the carton horizontally by 90°. Specifically, the conveyor belt 11 adopts synchronous belt drive, the bandwidth of which is adapted to the width of the carton, and the conveying speed is adjusted by a frequency converter motor. The first glue scraping mechanism 12 and the second glue scraping mechanism 13 correspond to the glue scraping operations on the inner side of the carton with and without grooves, respectively. The inner side of the arc guide plate 141 fits against the corner of the paper box to prevent scratching the box body when turning; the dial 142 is driven by a stepper motor, and the dial 142 and the side of the paper box move the paper box to turn horizontally 90° along the inner wall of the arc guide plate 141.

[0036] During implementation, before the cardboard box enters the first glue-scraping mechanism 12, it is first rotated 90° by the rotating assembly 14, so that the inner side with the groove faces the glue gun 133. The first glue-scraping mechanism 12 then scrapes the glue from the inner side with the groove. The cardboard box continues to be conveyed to the rotating assembly 14 between the two glue-scraping mechanisms. The rotating assembly 14 drives the cardboard box to rotate 90° again, so that the inner side without the groove faces the glue gun 133 of the second glue-scraping mechanism 13, completing the second glue scraping. The stepper motor precisely controls the rotation speed of the dial 142, and with the limiting effect of the arc guide plate 141, the cardboard box maintains a stable posture during the rotation process, achieving a precise 90° rotation and ensuring that the glue-scraping mechanism can accurately align with the target glue-scraping surface.

[0037] Furthermore, in specific implementation, such as Figure 6 and Figure 7 As shown, the first glue-scraping mechanism 12 and the second glue-scraping mechanism 13 provided in the embodiments of the present invention both include a fixing component. The fixing component includes a material-blocking cylinder 121, a pressing cylinder 122, a material-pushing cylinder 123 and a positioning cylinder 124. The output end of the material-blocking cylinder 121 is connected to a baffle for blocking the paper box from moving forward. The output end of the pressing cylinder 122 is connected to the material-pushing cylinder 123 for driving the material-pushing cylinder 123 to move horizontally along the paper box conveying direction. The output end of the material-pushing cylinder 123 is connected to a lever that abuts against the paper box. The positioning cylinder 124 is arranged on both sides of the conveyor belt 11, and the output end of the positioning cylinder 124 is connected to a positioning plate for pressing against the paper box.

[0038] Specifically, after six cartons enter the glue-applying station sequentially and are neatly arranged, the blocking cylinder 121 extends, the baffle blocks the subsequent cartons from moving forward, and the conveyor belt 11 stops moving. The pressing cylinder 122 is initially in the extended state, the feeding cylinder 123 extends perpendicular to the carton conveying direction, the feeding lever abuts against the foremost carton, the pressing cylinder 122 retracts, pushing the six cartons to squeeze each other tightly. Subsequently, the positioning cylinder 124 extends, and the positioning plates on both sides move synchronously towards the center, clamping and fixing the cartons against the two sides. Through the step-by-step actions of blocking, feeding, and positioning, the movement of the cartons is first restricted, then the spacing between the cartons is adjusted to a tight state, and finally precise positioning is achieved to ensure that the cartons do not shift during glue application. The fixing method is reliable, adaptable to the simultaneous processing of multiple cartons, avoids misalignment of the glue layer caused by carton displacement during glue application, and improves glue application accuracy and consistency.

[0039] Furthermore, in specific implementation, such as Figure 6 and Figure 7 As shown, both the first glue-scraping mechanism 12 and the second glue-scraping mechanism 13 provided in the embodiments of the present invention further include a lifting platform 131. A translation platform 132 is vertically and movably connected to the lifting platform 131, and a glue gun 133 is horizontally mounted on the translation platform 132 along the paper box conveying direction. Specifically, the lifting platform 131 is driven by a dual-axis lifting cylinder and has a guide shaft at the bottom to ensure smooth lifting without shaking. The translation platform 132 can be driven by a synchronous belt module and slides along the linear guide rail at the top of the lifting platform 131. The glue gun 133 has a flat nozzle. The first glue-scraping mechanism 12 is equipped with four glue guns 133, arranged symmetrically in two rows. The glue output of the glue gun 133 can be adjusted by a solenoid valve.

[0040] During implementation, after the cardboard box is fixed, the lifting cylinder drives the lifting platform 131 to descend, bringing the translation platform 132 and glue gun 133 closer to the inside of the cardboard box opening. The translation platform 132 moves along the linear guide rail under the drive of the synchronous belt module, and the glue gun 133 sprays glue synchronously to complete the first layer of glue application. For the inner side with grooves, the lifting platform 131 descends slightly, the glue gun 133 sprays glue again, and the translation platform 132 moves slightly to complete the second layer of glue application. Then, the lifting platform 131 rises slightly, the glue gun 133 sprays glue a third time, and the translation platform 132 continues to move to complete the third layer of glue application. After the glue application is completed, the lifting platform 131 rises back to its original position, and the glue gun 133 stops spraying.

[0041] Furthermore, in specific implementation, such as Figure 10 and Figure 11As shown, the merging forming mechanism 5 provided in the embodiment of the present invention includes a feeding conveyor belt 51, a pressing platform 52, a discharging conveyor belt 53, and a third frame 54. The feeding conveyor belt 51, the pressing platform 52, and the discharging conveyor belt 53 are arranged in parallel below the third frame 54. A translation mechanism 541 is provided on the third frame 54. A vertical movement mechanism 542 is provided on the translation mechanism 541 along a horizontal straight line perpendicular to the conveying direction of the cardboard box and the iron box. A support 543 is vertically and movably connected to the vertical movement mechanism 542. The support 543 is provided with a first gripper 544 and a pressure plate 545. The first gripper 544 is used to transfer the assembled cardboard box and iron box from the feeding conveyor belt 51 to the pressing platform 52. The pressure plate 545 cooperates with the pressing platform 52 to press the cardboard box and the iron box. The pressure plate 545 is provided with a suction cup for transferring the pressed cardboard box and the iron box from the pressing platform 52 to the discharging conveyor belt 53.

[0042] Specifically, the feeding conveyor belt 51, the pressing platform 52, and the unloading conveyor belt 53 are arranged in parallel along the horizontal direction. The surface of the pressing platform 52 is provided with six pressure-holding grooves that are adapted to the cardboard boxes. The inner wall of the pressure-holding grooves is provided with ventilation holes to ensure that the cardboard boxes can be smoothly put in and taken out. The third frame 54 is a gantry frame that spans above the feeding conveyor belt 51, the pressing platform 52, and the unloading conveyor belt 53. The translation mechanism 541 and the vertical movement mechanism 542 can both be ball screw modules driven by servo motors. The translation mechanism 541 is arranged in a direction perpendicular to the conveyor belt, and the vertical movement mechanism 542 is fixed on the slider of the translation mechanism 541. The first gripper 544 is a pneumatic gripper, with six of them, and is fixed below the bracket 543. The pressure plate 545 corresponds to the pressure-holding grooves one by one. The bottom of the pressure plate 545 is provided with vacuum suction cups, and the number of suction cups is adapted to the contact area of ​​the top of the cardboard box.

[0043] During implementation, the assembly after the tin box is inserted into the cardboard box is conveyed to the designated position by the feeding conveyor belt 51. The translation mechanism 541 drives the vertical translation mechanism 542 to move above the assembly. The vertical translation mechanism 542 descends, and the first gripper 544 clamps the assembly. The vertical translation mechanism 542 rises, and the translation mechanism 541 moves the assembly above the pressing platform 52. The vertical translation mechanism 542 descends, and the assembly is placed into the pressure holding groove. The first gripper 544 releases. The pressure plate 545 descends under the drive of the vertical translation mechanism 542 and cooperates with the pressure holding groove to press the scraper on the cardboard box and the tin box firmly. Then, the vacuum suction cup sucks air to adsorb the assembly. The vertical translation mechanism 542 rises, and the translation mechanism 541 moves the assembly above the unloading conveyor belt 53. The suction cup releases air and blows air appropriately. The assembly falls into the unloading conveyor belt 53 and is conveyed to the subsequent process.

[0044] It should be noted that the first gripper 544 and the pressure plate 545 are arranged parallel to each other under the bracket 543 and move synchronously. When the first gripper 544 picks up a cardboard box, the pressure plate 545 simultaneously performs the compaction operation of the previous batch of cardboard boxes; when the first gripper 544 transfers the cardboard box from the feeding conveyor belt 51 to the pressing platform 52, the pressure plate 545 simultaneously transfers the previous batch of cardboard boxes from the pressing platform 52 to the unloading conveyor belt 53. In addition, the compaction and glue application position here is the glue application position of the first glue application mechanism 12 and the second glue application mechanism 13.

[0045] Furthermore, in specific implementation, such as Figure 8 and Figure 9 As shown, the merging forming mechanism 5 provided in the embodiment of the present invention includes a paper box conveyor belt 55, a metal box conveyor belt 56, and a second frame 57. The second frame 57 is provided with a positioning linear driver 571 and a clamping linear driver 572 on the paper box conveyor belt 55. The output ends of the positioning linear driver 571 and the clamping linear driver 572 are connected to a locking block 573 that abuts against the vertical edge of the paper box. The locking blocks 573 of the positioning linear driver 571 and the clamping linear driver 572 cooperate with each other to clamp and fix the paper box.

[0046] Specifically, the cardboard box conveyor belt 55 and the metal box conveyor belt 56 are arranged in parallel; the second frame 57 is a frame structure, fixed to the ground foundation on both sides of the conveyor belt; the positioning linear actuator 571 and the clamping linear actuator 572 are both linear cylinders, and the clamping block 573 is a structural block with an L-shaped groove, which contacts the vertical edge of the cardboard box. Each cardboard box is equipped with two positioning linear actuators 571 and two clamping linear actuators 572.

[0047] During implementation, the positioning linear actuator 571 extends the locking blocks 573 sequentially from front to back in the paper box conveying direction until all six paper boxes are intercepted by the locking blocks 573. Then, the clamping linear actuator 572 extends the locking blocks 573 to fix the position of the paper boxes, ensuring that the paper boxes remain stationary during the insertion of the metal box. The locking blocks 573 position and clamp the vertical edges of the paper boxes, limiting the horizontal displacement of the paper boxes and providing a stable reference for the insertion of the metal box.

[0048] Furthermore, in specific implementation, such as Figure 8 and Figure 9 As shown, a translation component 574 is provided on the second frame 57 provided in the embodiment of the present invention. A lifting component 575 is provided on the translation component 574 in a horizontal linear motion along the direction perpendicular to the conveying direction of the paper box and the iron box. A second gripper 576 for holding the iron box is vertically and movably connected to the lifting component 575.

[0049] Specifically, the translation component 574 can be a synchronous belt translation module, fixed on the crossbeam of the second frame 57 and arranged in a direction perpendicular to the conveyor belt; the lifting component 575 is a servo electric cylinder, fixed on the moving seat of the translation component 574; the second gripper 576 is a pneumatic gripper, with a total of six, fixed in two groups at the lower end of the lifting component 575.

[0050] During implementation, the translation component 574 drives the lifting component 575 to move above the iron box. The lifting component 575 descends, and the second gripper 576 extends to clamp the iron box. The lifting component 575 rises, and the translation component 574 moves the iron box above the fixed cardboard box. The lifting component 575 slowly descends and inserts the iron box into the cardboard box. After the iron box is inserted into place, the second gripper 576 releases, the lifting component 575 rises, and the translation component 574 drives the second gripper 576 to return to above the iron box conveying mechanism 4, ready to clamp the next batch of iron boxes.

[0051] Furthermore, in specific implementation, such as Figure 8 and Figure 9 As shown, in the embodiment of the present invention, the second frame 57 is provided with a material blocking linear driver 577 on the iron box conveyor belt 56, and the output end of the material blocking linear driver 577 is connected to a stop bar for blocking the iron box from moving forward.

[0052] Specifically, the material-stopping linear actuator 577 is a single-axis cylinder, fixed to the second frame 57 near the end of the iron box conveyor belt 56; each stop bar corresponds to one iron box, for a total of six. In implementation, the iron boxes are conveyed along the iron box conveyor belt 56. When an iron box passes the photoelectric sensor near the material-stopping linear actuator 577, the material-stopping linear actuator 577 extends, driving the stop bar to stop the iron box from continuing to move forward; after the previous batch of iron boxes completes the positioning action, the stop bar retracts.

[0053] Furthermore, in specific implementation, such as Figure 3 and Figure 4 As shown, a limit linear actuator 321 is also provided on the first frame 32 provided in the embodiment of the present invention. The output end of the limit linear actuator 321 is connected to a limit rod 322 for limiting the movement of the iron box to the iron box conveying mechanism 4.

[0054] Specifically, when the feeding plate of the pushing mechanism 37 pushes the top layer of iron boxes on the tray 33 towards the iron box conveying mechanism 4, the limit linear actuator 321 causes the limit rod 322 to retract. When a row of iron boxes is about to reach the iron box conveying line, if there are iron boxes blocking the iron box conveying mechanism 4, the iron boxes will collide if they continue to move forward. At this time, the limit linear actuator 321 drives the limit rod 322 to descend, inserting the limit rod 322 into the iron box to limit the movement distance of the iron box. After the iron box in front has completely entered the iron box conveying mechanism 4 and been conveyed away, the limit linear actuator 321 retracts, and the limit rod 322 rises to reset, without affecting the conveying of subsequent iron boxes.

Claims

1. An automated production line for assembling and molding multi-material three-dimensional packaging boxes, characterized in that, It includes a paper box conveying mechanism (2), a metal box destacking mechanism (3), a metal box conveying mechanism (4), and a merging and forming mechanism (5); The paper box conveying mechanism (2) is connected to the merging forming mechanism (5) and is used to convey unfolded paper boxes to the merging forming mechanism (5); The iron box destacking mechanism (3) includes a horizontal conveyor belt (31) and a first frame (32). One end of the horizontal conveyor belt (31) is used to place several pallets (33) stacked and fully loaded with iron boxes. The other end of the horizontal conveyor belt (31) is provided with a recycling area (34) for recycling empty pallets (33). The first frame (32) is vertically straddling the middle of the horizontal conveyor belt (31). The first frame (32) is provided with a lifting mechanism (35), a fixing mechanism (36) and a pushing mechanism (37). The lifting mechanism (35) is used to vertically lift or lower the pallet (33). The fixing mechanism (36) is used to fix the lifted pallet (33). The pushing mechanism (37) is used to horizontally push the iron boxes on the pallet (33) to the iron box conveying mechanism (4). The merging forming mechanism (5) is used to insert the iron box conveyed by the iron box conveying mechanism (4) into the paper box and press the paper box and iron box together.

2. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 1, characterized in that, The infeed end of the paper box conveying mechanism (2) is connected to an in-box glue applicator (1), which is used to apply glue to the inside of the paper box opening.

3. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 2, characterized in that, The in-box glue applicator (1) includes a conveyor belt (11), a first glue scraping mechanism (12), a second glue scraping mechanism (13), and a rotating box assembly (14). The rotating box assembly (14) is respectively arranged at the material receiving end of the first glue scraping mechanism (12) and between the first glue scraping mechanism (12) and the second glue scraping mechanism (13). The rotating box assembly (14) includes an arc guide plate (141) fixed to one side of the conveyor belt (11) and a dial (142) rotatably connected to the other side of the conveyor belt (11). The dial (142) cooperates with the arc guide plate (141) to rotate the paper box horizontally by 90°.

4. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 3, characterized in that, Both the first glue-scraping mechanism (12) and the second glue-scraping mechanism (13) include a fixing component. The fixing component includes a material-blocking cylinder (121), a pressing cylinder (122), a material-pushing cylinder (123), and a positioning cylinder (124). The output end of the material-blocking cylinder (121) is connected to a baffle for blocking the paper box from moving forward. The output end of the pressing cylinder (122) is connected to the material-pushing cylinder (123) for driving the material-pushing cylinder (123) to move horizontally along the paper box conveying direction. The output end of the material-pushing cylinder (123) is connected to a lever that abuts against the paper box. The positioning cylinder (124) is arranged on both sides of the conveyor belt (11), and the output end of the positioning cylinder (124) is connected to a positioning plate for pressing against the paper box.

5. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 3, characterized in that, Both the first glue scraping mechanism (12) and the second glue scraping mechanism (13) further include a lifting platform (131), on which a translation platform (132) is vertically and movably connected, and a glue gun (133) is horizontally moved on the translation platform (132) along the paper box conveying direction.

6. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 1, characterized in that, The merging forming mechanism (5) includes a feeding conveyor belt (51), a pressing platform (52), a discharging conveyor belt (53), and a third frame (54). The feeding conveyor belt (51), the pressing platform (52), and the discharging conveyor belt (53) are arranged parallel to each other below the third frame (54). A translation mechanism (541) is provided on the third frame (54). A vertical movement mechanism (542) is provided on the translation mechanism (541) to move horizontally in a straight line perpendicular to the conveying direction of the cardboard box and the iron box. A support (543) is vertically and movably connected to the upper part. The support (543) is provided with a first gripper (544) and a pressure plate (545). The first gripper (544) is used to transfer the assembled cardboard box and tin box from the feeding conveyor belt (51) to the pressing platform (52). The pressure plate (545) cooperates with the pressing platform (52) to press the cardboard box and tin box. The pressure plate (545) is provided with a suction cup to transfer the pressed cardboard box and tin box from the pressing platform (52) to the unloading conveyor belt (53).

7. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 1, characterized in that, The merging forming mechanism (5) includes a carton conveyor belt (55), a metal box conveyor belt (56), and a second frame (57). The second frame (57) is provided with a positioning linear driver (571) and a clamping linear driver (572) on the carton conveyor belt (55). The output ends of the positioning linear driver (571) and the clamping linear driver (572) are connected to a locking block (573) that abuts against the vertical edge of the carton. The locking blocks (573) of the positioning linear driver (571) and the clamping linear driver (572) cooperate with each other to clamp and fix the carton.

8. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 7, characterized in that, The second frame (57) is provided with a translation component (574), and the translation component (574) is provided with a lifting component (575) that moves horizontally in a straight line perpendicular to the conveying direction of the paper box and the iron box. The lifting component (575) is vertically movably connected with a second gripper (576) for holding the iron box.

9. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 7, characterized in that, The second frame (57) is provided with a material blocking linear drive (577) on the iron box conveyor belt (56), and the output end of the material blocking linear drive (577) is connected to a stop bar for blocking the iron box from moving forward.

10. The automated production line for assembling and molding multi-material three-dimensional packaging boxes according to claim 1, characterized in that, The first frame (32) is also provided with a limit linear actuator (321), and the output end of the limit linear actuator (321) is connected to a limit rod (322) for limiting the movement of the iron box to the iron box conveying mechanism (4).

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