Carton re-closing machine

Abstract

The utility model provides a kind of box compound press, including rack, press inner paper bottom mould, push mechanism and mould pressing mechanism, press inner paper bottom mould is set on rack, the upper portion of press inner paper bottom mould has the bottom mould positioning slot of W shape, bottom mould positioning slot is used to place the packaging box with included angle for upper cover relative bottom box to open, press inner paper bottom mould is sequentially provided with feeding station and mould pressing station along the length direction of bottom mould positioning slot;Push mechanism is set on rack, and push mechanism is used to push the packaging box on bottom mould positioning slot from feeding station to mould pressing station;Mould pressing mechanism is set on rack and is located above bottom mould positioning slot, and mould pressing mechanism is used to press the packaging box in mould pressing station, to adhere the paper inside packaging box to the inside rotary connection of bottom box and upper cover.The utility model's box compound press can carry out automatic pressing and sticking between the inside rotary connection of bottom box and upper cover and paper, effectively reduce labor cost.

Description

Technical Field

[0001] This utility model relates to the field of packaging box production technology, and in particular to a box repressing machine. Background Technology

[0002] In the packaging manufacturing industry, to meet the core requirements of product loading, protection, and sealing, some packaging boxes adopt a split structure design of "bottom box + top cover". In this structure, the processing technology of the bottom box has significant specificities: its four sides and bottom are formed by covering them with adhesive tape. Furthermore, to ensure the stability of the subsequent connection with the top cover, the adhesive tape on one side of the bottom box extends beyond that side, forming an extended section. The core function of this extended adhesive tape is that during the box assembly process, it can be adhered to the corresponding side of the top cover, thereby achieving initial fixation between the bottom box and the top cover, ensuring the overall structural stability of the assembled packaging box.

[0003] However, in the "bottom box-top lid" assembly process for this type of packaging box, existing production processes generally rely on manual operation. The specific process involves operators manually aligning and fastening the top lid to the top of the bottom box, while simultaneously manually extending the adhesive tape to adhere to the sides of the top lid, thus securing the assembly. This manual operation mode has three significant drawbacks: First, low production efficiency; the lack of continuity in manual operations and the long time consumption of each process make it difficult to adapt to the needs of large-scale production. Second, high labor costs; the assembly process requires a certain level of operator proficiency, and long-term reliance on manual labor will significantly increase the company's labor costs. Third, unstable assembly quality; the accuracy of manual operation is easily affected by factors such as operator condition and experience, leading to frequent quality problems such as top lid alignment deviations and loose adhesive tape adhesion.

[0004] To address the aforementioned issues with manual box assembly, engineers developed an automated box-assembly machine capable of automatically assembling the bottom box and top cover, effectively improving the automation level and production efficiency of the assembly process. After automatic assembly, the production process further strengthens the connection through a sticker application step—stickers are applied to the inside of the bottom box and top cover, ensuring that the stickers cover the inner rotating joints of both, thereby enhancing the structural stability and sealing reliability of the packaging box.

[0005] However, in actual production, it was found that after the sticker was pasted on the rotating connection between the bottom box and the top cover, the sticker and the connection were prone to not adhering properly. Specifically, there were gaps between the sticker and the rotating connection, and some areas were peeling up. This not only affected the appearance quality of the packaging box, but also reduced its structural stability, and failed to give full play to the reinforcing and fixing effect of the sticker.

[0006] Therefore, in order to solve the problem of non-adhesive stickers at the inner rotating connection between the bottom box and the top cover, and to improve the production quality and reliability of packaging boxes, it is necessary to provide a box re-pressing machine that can automatically press the stickers at the inner rotating connection between the bottom box and the top cover. Utility Model Content

[0007] The purpose of this invention is to provide a box repressing machine that can automatically press the sticker onto the inner rotating connection of the bottom box and the top cover.

[0008] To achieve the above objectives, this utility model provides a box repressing machine, including a frame, an inner paper bottom mold, a pushing mechanism, and a pressing mechanism. The inner paper bottom mold is disposed on the frame, and its upper part has a W-shaped bottom mold positioning groove. The bottom mold positioning groove is used to place a packaging box with its top cover open relative to the bottom box at an angle. The inner paper bottom mold has a feeding station and a pressing station sequentially arranged along the length direction of the bottom mold positioning groove. The pushing mechanism is disposed on the frame and is used to push the packaging box on the bottom mold positioning groove from the feeding station to the pressing station. The pressing mechanism is disposed on the frame and located above the bottom mold positioning groove. The pressing mechanism is used to press down the packaging box located at the pressing station to affix the sticker on the inside of the packaging box to the inner rotating connection between the bottom box and the top cover.

[0009] Preferably, the pushing mechanism includes a pushing moving drive assembly and a pushing component. The pushing moving drive assembly is disposed on the frame, and the output end of the pushing moving drive assembly is connected to the pushing component. The pushing moving drive assembly is used to drive the pushing component to move, so that the pushing component pushes the packaging box on the bottom mold positioning groove from the loading station to the pressing station. Preferably, the molding mechanism includes a molding movement drive assembly and a positive pressure upper mold. The molding movement drive assembly is disposed on the frame, and the output end of the molding movement drive assembly is connected to the positive pressure upper mold. The molding movement drive assembly is used to drive the positive pressure upper mold to move, so that the positive pressure upper mold presses down on the packaging box located at the molding station. Preferably, the bottom of the positive pressure upper mold is provided with an M-shaped pressing groove, and the shapes formed by the four surfaces of the bottom box (rotatably connected to the upper cover), the bottom box (adjacent to the bottom box), the upper cover (rotatably connected to the bottom box), and the upper cover (adjacent to the upper cover) are matched; during the process of the pressing mold moving drive assembly driving the positive pressure upper mold to press down the packaging box, the positive pressure upper mold presses down the bottom box inner surface, the bottom box inner side surface, the upper cover inner surface, and the upper cover inner side surface through the pressing groove, so as to affix the sticker inside the packaging box to the bottom box inner surface, the bottom box inner side surface, the upper cover inner surface, and the upper cover inner side surface. Preferably, the bottom sides of the positive pressure upper mold are respectively provided with inclined downward pressing surfaces that are adjacent to and connected to the downward pressing groove. The inclined downward pressing surfaces are used to press down the bottom surface of the bottom box that is adjacent to the inner side of the bottom box. Preferably, the frame is provided with a scraper located above the bottom mold positioning groove, the scraper being used to scrape creases at the rotational connection between the inner surface of the bottom box and the inner surface of the top cover.

[0010] Preferably, the box re-pressing machine further includes an adsorption mechanism, which is disposed on the frame and is used to adsorb and position the packaging box on the pressing station when the pressing mechanism presses down on the packaging box. Preferably, the box re-pressing machine further includes a feeding conveying mechanism, which is disposed on the frame. The adsorption mechanism is also used to transport the packaging box on the film pressing station to the feeding conveying mechanism. The feeding conveying mechanism is used to feed the packaging box with the top cover opened 180 degrees relative to the bottom box. Preferably, the adsorption mechanism includes an adsorption linear movement drive assembly and an adsorption nozzle module. The adsorption linear movement drive assembly is disposed on the frame, and the adsorption nozzle module is disposed on the adsorption linear movement drive assembly. The adsorption linear movement drive assembly drives the adsorption nozzle module to move linearly, so that the adsorption nozzle module adsorbs the packaging box on the film pressing station and transports the packaging box above the unloading conveyor mechanism, thereby causing the adsorption nozzle module to release the packaging box and drop it onto the unloading conveyor mechanism. Preferably, the box repressing machine further includes a shaping and pressing mechanism and a turning and conveying mechanism respectively disposed on the frame. The shaping and pressing mechanism and the turning and conveying mechanism are arranged sequentially above the unloading conveying mechanism along the conveying direction of the unloading conveying mechanism. The shaping and pressing mechanism is used to press down and shape the packaging box on the unloading conveying mechanism, so that the top cover opens 180 degrees flat relative to the bottom box. The turning and conveying mechanism is used to clamp the packaging box located on the unloading conveying mechanism and transport and rotate the packaging box 90 degrees to place it on the unloading conveying mechanism. Compared with existing technologies, this box re-pressing machine integrates an inner paper bottom mold, a pushing mechanism, and a pressing mechanism on the frame, forming an automated "feeding-transfer-pressing" process. This eliminates the need for manual pressing operations, significantly improving production efficiency and adapting to large-scale production needs. The W-shaped bottom mold positioning groove in the inner paper bottom mold positions the initially fed packaging box at its feeding station, ensuring the top cover opens stably relative to the bottom box at an angle. The pushing mechanism precisely transfers the box to the pressing station, and the pressing mechanism applies directional pressure, avoiding the precision fluctuations of manual operation and ensuring stable pressing quality in mass production. The precise pressing of the packaging box at the pressing station by the pressing mechanism specifically addresses the problem of non-adhesive sticker application (such as gaps or lifting) at the rotating connection between the bottom box and the inner side of the top cover, ensuring a strong and secure sticker application and improving the structural stability and appearance quality of the packaging box. Therefore, the box re-pressing machine of this utility model can automatically press the sticker on the inner rotating connection of the bottom box and the top cover, effectively reducing labor costs, while reducing rework and waste caused by poor adhesion, and further controlling production loss costs. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the box repressing machine of this utility model.

[0012] Figure 2 This is a three-dimensional structural diagram of the box repressing machine of this utility model after removing part of the frame.

[0013] Figure 3 This is a three-dimensional structural diagram of the inner paper bottom mold of this utility model.

[0014] Figure 4 This is a three-dimensional structural diagram of the material pushing mechanism of this utility model.

[0015] Figure 5 This is a three-dimensional structural diagram of the molding mechanism of this utility model.

[0016] Figure 6 This is a three-dimensional structural diagram of the packaging box of this utility model.

[0017] Figure 7 This is an exploded view of the packaging box of this utility model.

[0018] Figure 8 This is a three-dimensional structural diagram of the adsorption mechanism of this utility model.

[0019] Figure 9 This is a connection structure diagram of the scraper pen of this utility model.

[0020] Figure 10 This is a partial structural diagram of the box repressing machine of this utility model at the position of the feeding and conveying mechanism.

[0021] Figure 11 yes Figure 10 The diagram shows the structure from another angle. Detailed Implementation

[0022] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0023] Please see Figures 1 to 7 This utility model provides a box repressing machine 100, which includes a frame 1, an inner paper bottom mold 2, a pushing mechanism 3, and a pressing mechanism 4. The inner paper bottom mold 2 is disposed on the frame 1. The upper part of the inner paper bottom mold 2 has a W-shaped bottom mold positioning groove 21. The bottom mold positioning groove 21 is used to place a packaging box 200 with an angle between the upper cover 202 and the bottom box 201. The inner paper bottom mold 2 is provided with a feeding station 211 and a pressing station 212 in sequence along the length direction of the bottom mold positioning groove 21. The pushing mechanism 3 is disposed on the frame 1. The pushing mechanism 3 is used to push the packaging box 200 on the bottom mold positioning groove 21 from the feeding station 211 to the pressing station 212. The shape of the W-shaped bottom mold positioning groove 21 is adapted to the angle between the top cover 202 and the bottom box 201 when they are open, which can provide stable support and positioning for the packaging box 200 and prevent the packaging box 200 from shifting during subsequent material pushing and pressing processes. The partitioning of the material feeding station 211 and the pressing station 212 allows the material feeding and pressing processes to be connected in an orderly manner, improving the orderliness of the production process. The material pushing mechanism 3 realizes the automated transfer of the packaging box 200 between the two stations, replacing manual handling and improving the efficiency of process flow.

[0024] Please see Figure 2 and Figure 4The pushing mechanism 3 includes a pushing and moving drive assembly 31 and a pushing component 32. The pushing and moving drive assembly 31 is mounted on the frame 1, and its output end is connected to the pushing component 32. The pushing and moving drive assembly 31 drives the pushing component 32 to move, so that the pushing component 32 pushes the packaging box 200 on the bottom mold positioning groove 21 from the loading station 211 to the pressing station 212. The pushing and moving drive assembly 31 can adopt mature driving methods such as cylinders and linear motors, which can provide stable driving force for the pushing component 32 and ensure the smoothness of the pushing process. The pushing component 32 can be designed as a plate or block structure according to the outer dimensions of the packaging box 200, with a moderate contact area with the packaging box 200. It can reliably push the packaging box 200 to move, and avoid deformation of the packaging box 200 due to concentrated pushing force, thus ensuring the integrity of the packaging box 200 during the transfer process.

[0025] Please see Figure 2 and Figure 5 The pressing mechanism 4 includes a pressing mold moving drive assembly 41 and a positive pressure upper mold 42. The pressing mold moving drive assembly 41 is mounted on the frame 1, and its output end is connected to the positive pressure upper mold 42. The pressing mold moving drive assembly 41 drives the positive pressure upper mold 42 to move, so that the positive pressure upper mold 42 presses down on the packaging box 200 located at the pressing station 212. The pressing mold moving drive assembly 41 can be driven by a servo motor in conjunction with a ball screw or a cylinder, which can accurately control the pressing speed, stroke and pressure of the positive pressure upper mold 42 to meet the pressing requirements of packaging boxes 200 of different thicknesses and materials. As a component that directly acts on the packaging box 200, the positive pressure upper mold 42 is structurally designed to match the inner shape of the packaging box 200 to ensure that force is applied evenly during pressing and improve the pressing effect.

[0026] Please see Figures 5 to 7The bottom of the positive pressure upper mold 42 is provided with an M-shaped lower pressure groove 421, and the shapes formed by the four surfaces of the bottom box 201 (inner surface 201a rotatably connected to the upper cover 202), the bottom box 201 (inner side surface 201b adjacent to the bottom box inner surface 201a), the upper cover 202 (inner surface 202a rotatably connected to the bottom box inner surface 201a), and the upper cover 202 (inner side surface 202b adjacent to the upper cover inner surface 202a) are consistent. During the process of the pressing mold moving drive assembly 41 driving the positive pressure upper mold 42 to press down the packaging box 200, the positive pressure upper mold 42 presses down the bottom box inner surface 201a, bottom box inner side surface 201b, upper cover inner surface 202a, and upper cover inner side surface 202b through the pressing groove 421, so as to attach the sticker 300 inside the packaging box 200 to the bottom box inner surface 201a, bottom box inner side surface 201b, upper cover inner surface 202a, and upper cover inner side surface 202b. The M-shaped pressing groove 421 precisely matches the shape formed by the multiple surfaces inside the packaging box 200, allowing multiple key inner surfaces of the bottom box 201 and the top cover 202 to be pressed simultaneously during pressing, avoiding partial incomplete pressing. By pressing these surfaces simultaneously, it can be ensured that the sticker 300 is tightly attached to each surface, especially the sticker 300 at the rotating connection between the bottom box 201 and the top cover 202, which can be fully pressed, effectively solving problems such as gaps and lifting, and improving the overall structural stability of the packaging box 200.

[0027] Please see Figures 5 to 7 The bottom sides of the positive pressure upper mold 42 are respectively provided with inclined downward pressing surfaces 422 that are adjacent to the downward pressing groove 421. The inclined downward pressing surfaces 422 are used to press down the inner bottom surface of the bottom box 201 that is adjacent to the inner side surface 201b of the bottom box. The setting of the inclined downward pressing surfaces 422 further expands the pressing coverage of the positive pressure upper mold 42, and avoids the sticker 300 from becoming loose in this area due to lack of pressure. At the same time, the design of the inclined angle conforms to the inclined shape of the inner bottom surface of the bottom box 201, so that the pressure can be evenly transmitted to this surface.

[0028] Please see Figure 2 and Figure 9 The frame 1 is equipped with a scraper 11 located above the bottom mold positioning groove 21. The scraper 11 is used to scrape creases at the rotating connection between the inner surface 201a of the bottom box and the inner surface 202a of the top cover. The scraper 11 can pre-treat the rotating connection before pressing. By scraping the creases, the sticker 300 at the rotating connection can be initially adhered and a clear crease can be formed. At the same time, the formation of the crease can also improve the smoothness of the subsequent opening and closing process of the packaging box 200 and avoid the opening and closing jamming caused by uneven adhesion of the sticker 300 at the rotating connection.

[0029] Please see Figure 2 and Figure 8The box re-pressing machine 100 also includes an adsorption mechanism 5, which is mounted on the frame 1. The adsorption mechanism 5 is used to adsorb and position the packaging box 200 on the pressing station when the pressing mechanism 4 presses down on it. During the pressing process of the pressing mechanism 4, the adsorption mechanism 5 firmly fixes the packaging box 200 on the pressing station 212 through negative pressure adsorption, preventing the packaging box 200 from shifting or lifting due to pressure, ensuring that the pressing mechanism 4 can accurately act on the target area, improving the pressing accuracy and consistency. At the same time, the adsorption positioning method will not damage the appearance of the packaging box 200, ensuring product quality. Furthermore, the adsorption mechanism 5 can also move to the loading station 211 at the beginning and adsorb the packaging box 200 located at the loading station 211, and then work together with the pushing mechanism 3 to push the packaging box 200 from the loading station 211 to the pressing station 212.

[0030] Please see Figure 2 and Figure 10 The box re-pressing machine 100 also includes a feeding conveyor mechanism 6, which is mounted on the frame 1. The adsorption mechanism 5 is used to transport the packaging boxes 200 on the lamination station to the feeding conveyor mechanism 6. The feeding conveyor mechanism 6 is used to transport the packaging boxes 200 with the top cover 202 open 180 degrees relative to the bottom box 201. The adsorption mechanism 5 has both positioning and transport functions, which simplifies the equipment structure and reduces the equipment manufacturing cost. The feeding conveyor mechanism 6 realizes the automated feeding of the packaging boxes 200 after lamination, replacing manual feeding, improving the overall production efficiency, and can transport the packaging boxes 200 with the top cover 202 open 180 degrees in an orderly manner, which is convenient for the connection of subsequent processes, such as inspection and stacking.

[0031] Please see Figure 2 and Figure 8 The adsorption mechanism 5 includes an adsorption linear motion drive assembly 51 and an adsorption nozzle module 52. The adsorption linear motion drive assembly 51 is mounted on the frame 1, and the adsorption nozzle module 52 is mounted on the adsorption linear motion drive assembly 51. The adsorption linear motion drive assembly 51 drives the adsorption nozzle module 52 to move linearly, so that the adsorption nozzle module 52 adsorbs the packaging box 200 on the molding station and transports the packaging box 200 above the unloading conveyor 6, thereby allowing the adsorption nozzle module 52 to release the packaging box 200 onto the unloading conveyor 6. The adsorption linear motion drive assembly 51 can be a linear module, which can realize the precise linear movement of the adsorption nozzle module 52, ensuring that the adsorption nozzle module 52 can accurately move to the molding station 212 for adsorption and accurately move to the unloading conveyor 6 for release. The adsorption nozzle module 52 can be equipped with one or more adsorption nozzles according to the material and shape of the packaging box 200.

[0032] Please see Figure 10The unloading conveyor 6 is provided with outer guide baffles 61 on both sides to prevent the packaging box 200 from falling outside the unloading conveyor 6. The outer guide baffles 61 can limit the packaging box 200 released by the suction nozzle module 52 and falling onto the unloading conveyor 6, preventing the packaging box 200 from falling due to deviation during the falling process, and ensuring that the packaging box 200 can fall accurately onto the unloading conveyor 6.

[0033] Please see Figure 10 and Figure 11 The box repressing machine 100 also includes a shaping and pressing mechanism 7 and a turning and conveying mechanism 8, respectively mounted on the frame 1. The shaping and pressing mechanism 7 and the turning and conveying mechanism 8 are arranged sequentially above the unloading conveying mechanism 6 along the conveying direction of the unloading conveying mechanism 6. The shaping and pressing mechanism 7 is used to press down and shape the packaging box 200 on the unloading conveying mechanism 6, so that the upper cover 202 opens flatly 180 degrees relative to the bottom box 201. The turning and conveying mechanism 8 is used to clamp the packaging box 200 located on the unloading conveying mechanism and rotate it 90 degrees to place it on the unloading conveying mechanism. The shaping and pressing mechanism 7 presses down and shapes the packaging box 200, so that the upper cover 202 opens flatly 180 degrees relative to the bottom box 201. The turning and conveying mechanism 8 can rotate the packaging box 200 to a specific angle according to the needs of subsequent processes, improving the versatility and adaptability of the equipment. Rotating the packaging box 200 to a suitable angle via the turning and conveying mechanism 8 eliminates the need for manual adjustment, improving the continuity of the production process.

[0034] Specifically, the shaping and pressing mechanism 7 includes a shaping and pressing drive assembly 71 and a shaping pressure plate 72. The shaping and pressing drive assembly 71 is mounted on the frame 1, and its output end is connected to the shaping pressure plate 72. The shaping and pressing drive assembly 71 drives the shaping pressure plate 72 to move downward, and the shaping pressure plate 72 simultaneously presses down on the bottom box 201 and the top cover 202 of the packaging box 200. The shaping and pressing drive assembly 71 can be driven by a cylinder or a servo motor, providing stable downward pressure to the shaping pressure plate 72. The area of ​​the shaping pressure plate 72 needs to cover the main surfaces of the bottom box 201 and the top cover 202. By pressing down simultaneously, the packaging box 200 after pressing can be shaped as a whole, making the shape of the packaging box 200 more regular and ensuring that the bottom box 201 and the top cover 202 unfold flat on the feeding conveyor mechanism 6.

[0035] Specifically, the steering and conveying mechanism 8 includes a lifting and rotating drive assembly 81 and a clamping assembly 82. The lifting and rotating drive assembly 81 is mounted on the frame 1, and its output end is connected to the clamping assembly 82. The clamping assembly 82 is located above the unloading conveying mechanism 6. The lifting and rotating drive assembly 81 drives the clamping assembly 82 to lift and rotate, and the clamping assembly 82 is used to clamp the packaging box 200. The lifting and rotating drive assembly 81 integrates lifting and rotating functions, enabling precise lifting and 90-degree rotation of the clamping assembly 82. This ensures that the clamping assembly 82 can accurately clamp the packaging box 200 on the unloading conveying mechanism 6 and rotate it to the target angle. The clamping assembly 82 can use pneumatic or electric grippers, and the gripper surface can be made of flexible materials such as rubber to ensure the reliability of the clamping while avoiding damage to the surface of the packaging box 200.

[0036] Please see Figure 10 and Figure 11 The box repressing machine 100 also includes a blocking mechanism 91, which is mounted on the frame 1. The blocking mechanism 91 is used to block the packaging boxes 200 on the unloading conveyor 6 from being placed under the turning and transporting mechanism 8, or to release the packaging boxes 200 so that they can move forward with the unloading conveyor 6. The blocking mechanism 91 can coordinate with the working rhythm of the turning and transporting mechanism 8. When it is necessary to turn the packaging box 200, the blocking mechanism 91 blocks the packaging box 200 from being placed under the turning and transporting mechanism 8, so that the clamping component 82 can accurately clamp it. When it is not necessary to turn or after turning is completed, the blocking mechanism 91 releases the packaging box 200 so that it can continue to move forward with the unloading conveyor 6. This achieves orderly coordination of the conveying and turning of the packaging box 200 and improves the coordination of the equipment operation.

[0037] Please see Figure 11 The box repressing machine 100 also includes a repressing base 92, a repressing strip 93, and a repressing tip 94. The repressing base 92 is mounted on the frame 1. The repressing strip 93 and the repressing tip 94 are sequentially mounted on the repressing base 92 along the conveying direction of the feeding conveying mechanism 6 and are located above the feeding conveying mechanism 6. The repressing strip 93 is used to repress the inner surface 201a of the bottom box and the inner surface 202a of the top cover. The repressing tip 94 is used to repress the rotating connection between the inner surface 201a of the bottom box and the inner surface 202a of the top cover. The double-pressure strip 93 and the double-pressure tip 94 form a secondary double-pressure structure. The double-pressure strip 93 first applies overall double-pressure to the inner surfaces of the bottom box 201 and the top cover 202 to ensure the tightness of the sticker 300's adhesion to the large surface. The double-pressure tip 94 then applies precise double-pressure to the key area of ​​the rotating connection. Its pointed structure can concentrate the pressure on the gap at the connection, further eliminating gaps and lifting problems. The double double-pressure design greatly improves the adhesion quality and stability of the sticker 300.

[0038] Combination Figures 1 to 11 The working principle of this box repressing machine 100 is as follows: First, the packaging box 200, with its top cover 202 open relative to the bottom box 201 and the inner sticker 300 already pre-applied, is placed at the loading station 211 of the W-shaped bottom mold positioning groove 21 of the inner paper bottom mold 2. The bottom box 201 of the packaging box 200 on the W-shaped bottom mold positioning groove 21 forms an angle with the top cover 202. Next, the pushing mechanism 3's pushing movement drive component 31 drives the pushing component 32 to move, pushing the packaging box 200 precisely from the loading station 211 to the pressing station 212. At the same time, the suction mechanism 5 is activated, using the suction nozzle module 52 to suction and pull the packaging box 200 precisely from the loading station 211 to the pressing station 212 along with the pushing mechanism 3. Then, the packaging box 200 is suctioned and positioned on the pressing station 212 to prevent displacement during the pressing process. Next, the pressing mechanism 4's pressing mechanism 4's pressing mechanism 4 drives the positive pressing upper mold 42 to move downwards. The M-shaped pressing groove 421 at the bottom of the positive pressing upper mold 42 fits against the multiple surfaces inside the packaging box 200, simultaneously pressing down on the inner surface 201a, inner side 201b, inner surface 202a, and inner side 202b of the top cover. At the same time, the inclined pressing surfaces 422 on both sides press down on the inner bottom surface of the bottom box 201, achieving a tight fit between the sticker 300 and each surface. After pressing, the adsorption mechanism 5's adsorption linear movement driving component 51 drives the adsorption nozzle module 52 to move, transporting the pressed packaging box 200 above the unloading conveying mechanism 6. During this process, the scraper 11 scrapes the crease at the rotating connection between the inner surface 201a of the bottom box and the inner surface 202a of the top cover, so that the sticker 300 is initially attached and forms a crease. Then, the suction nozzle module 52 releases the packaging box 200, allowing it to fall freely onto the unloading conveyor mechanism 6. At this point, the top cover 202 of the packaging box 200 is open 180 degrees relative to the bottom box 201. The unloading conveyor mechanism 6 moves the packaging box 200 forward. When a turn is needed, the blocking mechanism 91 blocks the packaging box 200 below the turning and transporting mechanism 8. The lifting and rotating drive assembly 81 drives the clamping assembly 82 to descend and clamp the packaging box 200, then rises and rotates 90 degrees before placing the packaging box 200 back onto the unloading conveyor mechanism 6. The material-stopping mechanism 91 releases the packaging box 200 to continue moving forward. During its movement, the packaging box 200 passes sequentially through the pressure strip 93 and the pressure tip 94. The pressure strip 93 applies pressure to the inner surface 201a of the bottom box and the inner surface 202a of the top cover, while the pressure tip 94 applies precise pressure to the rotating connection. Simultaneously, the shaping and pressing drive component 71 of the shaping and pressing mechanism 7 drives the shaping plate 72 to move downward, shaping the packaging box 200 as a whole. Finally, the packaging box 200, after secondary pressure and shaping, is unloaded by the unloading conveyor mechanism 6 and enters the subsequent processes. The entire process achieves fully automated operation from feeding, positioning, pressing, handling, turning, secondary pressing to unloading, significantly improving production efficiency and pressing quality.

[0039] In summary, the box re-pressing machine 100 of this utility model integrates the inner paper bottom mold 2, the pushing mechanism 3, and the pressing mechanism 4 on the frame 1 to form an automated process of "feeding-transferring-pressing". It eliminates the need for manual pressing operations, effectively and significantly improves production efficiency, and is suitable for large-scale production needs. Furthermore, the W-shaped bottom mold positioning groove 21 in the inner paper bottom mold 2 positions the packaging box 200 initially fed to its feeding station 211, so that the top cover 202 of the packaging box 200 is stably opened relative to the bottom box 201 with an angle. The pushing mechanism 3 accurately transfers the box to the pressing station 212, and the pressing mechanism 4 presses down in a directional manner, avoiding the precision fluctuations of manual operation and ensuring stable pressing quality in mass production. The pressing mechanism 4 precisely presses down on the packaging box 200 at the pressing station 212, specifically addressing the problem of poor adhesion (such as gaps or lifting) of the sticker 300 at the inner rotating connection between the bottom box 201 and the top cover 202. This ensures the sticker 300 has a strong fixing effect, improving the structural stability and appearance quality of the packaging box 200. Therefore, the box repressing machine 100 of this utility model can automatically press the sticker 300 at the inner rotating connection between the bottom box 201 and the top cover 202, effectively reducing labor costs and minimizing rework and waste caused by poor adhesion, further controlling production loss costs.

[0040] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A box repressing machine, characterized in that, include: frame; The inner paper bottom mold is set on the frame. The upper part of the inner paper bottom mold has a W-shaped bottom mold positioning groove. The bottom mold positioning groove is used to place a packaging box with the top cover open relative to the bottom box and having an angle. The inner paper bottom mold is provided with a feeding station and a pressing station in sequence along the length direction of the bottom mold positioning groove. A pushing mechanism is provided on the frame and is used to push the packaging box on the bottom mold positioning groove from the loading station to the pressing station; A molding mechanism is provided on the frame and located above the bottom mold positioning groove. The molding mechanism is used to press down the packaging box located at the molding station to affix the sticker on the inside of the packaging box to the inner rotating connection between the bottom box and the top cover.

2. The box repressing machine according to claim 1, characterized in that, The material pushing mechanism includes a material pushing and moving drive assembly and a material pushing component. The material pushing and moving drive assembly is disposed on the frame. The output end of the material pushing and moving drive assembly is connected to the material pushing component. The material pushing and moving drive assembly is used to drive the material pushing component to move, so that the material pushing component pushes the packaging box on the bottom mold positioning groove from the loading station to the pressing station.

3. The box repressing machine according to claim 1, characterized in that, The molding mechanism includes a molding moving drive assembly and a positive pressure upper mold. The molding moving drive assembly is disposed on the frame. The output end of the molding moving drive assembly is connected to the positive pressure upper mold. The molding moving drive assembly is used to drive the positive pressure upper mold to move, so that the positive pressure upper mold presses down on the packaging box located at the molding station.

4. The box repressing machine according to claim 3, characterized in that, The bottom of the positive pressure upper mold is provided with an M-shaped lower pressure groove, and the shapes formed by the four components of the bottom box inner surface rotatably connected to the upper cover, the bottom box inner side surface adjacent to the bottom box inner surface, the upper cover inner surface rotatably connected to the bottom box inner surface, and the upper cover inner side surface adjacent to the upper cover inner surface match each other. During the process of the pressure mold moving drive assembly driving the positive pressure upper mold to press down on the packaging box, the positive pressure upper mold presses down on the inner surface of the bottom box, the inner side of the bottom box, the inner surface of the upper cover, and the inner side of the upper cover through the lower pressing groove, so as to affix the sticker on the inside of the packaging box to the inner surface of the bottom box, the inner side of the bottom box, the inner surface of the upper cover, and the inner side of the upper cover.

5. The box repressing machine according to claim 4, characterized in that, The bottom of the positive pressure upper mold is provided with inclined downward pressing surfaces on both sides, which are adjacent to the downward pressing groove. The inclined downward pressing surfaces are used to press down on the bottom surface of the bottom box, which is adjacent to the inner side of the bottom box.

6. The box repressing machine according to claim 4, characterized in that, The frame is equipped with a scraper located above the bottom mold positioning groove. The scraper is used to scrape the turning marks at the rotational connection between the inner surface of the bottom box and the inner surface of the top cover.

7. The box repressing machine according to claim 1, characterized in that, It also includes an adsorption mechanism, which is disposed on the frame and is used to adsorb and position the packaging box on the film pressing station when the molding mechanism presses down on the packaging box.

8. The box repressing machine according to claim 7, characterized in that, It also includes a feeding conveyor mechanism, which is mounted on the frame. The adsorption mechanism is also used to transport the packaging box on the film pressing station to the feeding conveyor mechanism. The feeding conveyor mechanism is used to feed the packaging box with the top cover opened 180 degrees relative to the bottom box.

9. The box repressing machine according to claim 8, characterized in that, The adsorption mechanism includes an adsorption linear motion drive assembly and an adsorption nozzle module. The adsorption linear motion drive assembly is disposed on the frame, and the adsorption nozzle module is disposed on the adsorption linear motion drive assembly. The suction nozzle module is driven to move linearly by the suction linear movement drive component, so that the suction nozzle module adsorbs the packaging box on the film pressing station and transports the packaging box above the unloading conveyor mechanism, thereby allowing the suction nozzle module to release the packaging box and drop it onto the unloading conveyor mechanism.

10. The box repressing machine according to claim 8, characterized in that, It also includes a shaping and pressing mechanism and a turning and conveying mechanism respectively disposed on the frame. The shaping and pressing mechanism and the turning and conveying mechanism are arranged sequentially above the unloading conveying mechanism along the conveying direction of the unloading conveying mechanism. The shaping and pressing mechanism is used to press down and shape the packaging box on the unloading conveying mechanism so that the top cover opens flatly 180 degrees relative to the bottom box. The turning and conveying mechanism is used to clamp the packaging box located on the unloading conveying mechanism and transport and rotate the packaging box 90 degrees to place it on the unloading conveying mechanism.

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