A device for folding and shaping the edges of a corrugated box
By designing a corrugated cardboard box folding and shaping device, the problems of decreased folding endurance and bursting caused by the drying of corrugated cardboard were solved by using an automatic folding mechanism and a humidification mechanism. This achieved an efficient and stable cardboard box folding process, improving production efficiency and forming quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGYAN UNIV
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-29
AI Technical Summary
Corrugated cardboard's folding endurance decreases sharply when drying, and it is prone to bursting lines when folding edges, affecting the quality and pass rate of carton forming.
A corrugated cardboard box folding and shaping device was designed, which includes an automatic folding mechanism and a humidification mechanism. The folding plate is driven by a drive motor to automatically fold the edges, and the cardboard is moistened by spraying water mist through the humidification mechanism. Combined with a heating plate, the brittleness of the cardboard is reduced, ensuring the accuracy and quality of the folding.
It improves the accuracy and quality of corrugated cardboard folding, reduces scrap rate, lowers labor intensity, increases production efficiency, ensures uniform humidification of all parts of the cardboard, and avoids problems such as decreased folding endurance and bursting caused by localized drying.
Smart Images

Figure CN224296712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated cardboard box production technology, and in particular to a corrugated cardboard box folding and shaping device. Background Technology
[0002] Corrugated boxes are packaging containers made of corrugated cardboard through processes such as die-cutting, creasing, stapling, or gluing. They are widely used in the transportation, storage, and sales of goods.
[0003] In the production of corrugated cardboard boxes, the boxes are usually first cut into the required shape using a cutting device, and then folded to shape them, which makes it easier to fold the corrugated cardboard boxes into the shape of a box later. However, some cardboard is too dry, and its folding endurance drops sharply. Problems such as bursting lines are easily generated when folding the edges, which seriously affects the quality and pass rate of the cardboard box forming.
[0004] Therefore, it is necessary to provide a corrugated cardboard box folding and shaping device to solve the above-mentioned technical problems. Utility Model Content
[0005] To address the technical problem that excessively dry cardboard leads to a sharp decrease in folding endurance and the tendency for cracks to form during folding, this utility model provides a corrugated cardboard box folding and shaping device.
[0006] The corrugated cardboard box folding and shaping device provided by this utility model includes: a workbench, on which an mounting frame is fixedly installed; a placement plate for placing cardboard, which is fixedly installed on the workbench, and folding plates are hinged to both sides of the placement plate; a limiting plate, which is slidably installed on the mounting frame and corresponds to the placement plate; an automatic folding mechanism, which is disposed on the workbench and is used to drive the folding plates to fold; and a humidifying mechanism, which is disposed on the mounting frame and is used to spray humidification before folding.
[0007] Preferably, the automatic folding mechanism includes a drive motor, a threaded rod, a threaded cylinder, and a support rod. The drive motor is fixedly installed at the bottom of the worktable. The threaded rod is connected to the output shaft of the drive motor via a coupling. The threaded cylinder is threaded onto the threaded rod. The support rod is hinged to the top of the threaded cylinder, and the top end of the support rod is hinged to the folding plate.
[0008] Preferably, the humidification mechanism includes a water storage tank, a suction pump, an inlet pipe, an outlet pipe, and multiple atomizing nozzles. The water storage tank is fixedly installed on one side of the mounting frame, the suction pump is fixedly installed on the water storage tank, the inlet pipe is fixedly connected to the inlet end of the suction pump, and the inlet end of the inlet pipe extends into the water storage tank. The outlet pipe is fixedly connected to the outlet end of the suction pump, and the outlet end of the outlet pipe extends into the mounting frame. Multiple atomizing nozzles are all located on the outlet end of the outlet pipe.
[0009] Preferably, the folded edge plate has a mounting groove, and a heating plate is fixedly installed in the mounting groove.
[0010] Preferably, an electric telescopic rod is fixedly installed on the mounting frame, and the output rod of the electric telescopic rod is connected to the limiting plate.
[0011] Preferably, a guide rod is fixedly installed at the bottom of the workbench, a guide groove is provided on one side of the threaded cylinder, and one end of the guide rod is slidably connected to the guide groove.
[0012] Preferably, the workbench has an opening for the threaded cylinder and the support rod to move.
[0013] Compared with related technologies, the corrugated cardboard box folding and shaping device provided by this utility model has the following beneficial effects:
[0014] This utility model provides a corrugated cardboard box folding and shaping device:
[0015] 1. The placement plate and limiting plate can stably place the cardboard, ensuring accurate folding position and improving folding accuracy. The two hinged folding plates can fold up both sides of the carton to achieve the folding purpose, improving the quality of cardboard folding and reducing scrap rate. The entire mechanism is automatically completed by driving the drive motor to complete the folding action without manual folding, which greatly improves production efficiency, reduces manual labor intensity, and ensures the consistency and stability of folding quality.
[0016] 2. Automatic humidification is achieved through a suction pump, which improves production efficiency. Multiple atomizing nozzles can spray water evenly on the surface of the cardboard, ensuring that all parts of the cardboard are adequately humidified and avoiding localized insufficient or excessive humidification. This effectively solves the problems of decreased folding endurance and cracking caused by cardboard drying. Heating by the heating plate can reduce the brittleness of the cardboard, further reducing the possibility of cracking during folding, improving folding quality, and making the edges of the folded cardboard neater and more beautiful.
[0017] 3. The extension distance of the output rod can be controlled by the electric telescopic rod, thereby adjusting the position of the limit plate and realizing the automatic adjustment of the limit plate. The sliding connection between the guide rod and the guide groove provides a stable guide for the movement of the threaded cylinder, preventing the threaded cylinder from rotating or deviating during the rotation of the threaded rod. This ensures that the threaded cylinder can only move in a straight line along the axial direction of the threaded rod, thus ensuring the accurate movement trajectory of the folding plate. The opening allows the threaded cylinder and the support rod to move freely between the bottom and top of the worktable without being obstructed by the worktable surface, ensuring the normal operation of the automatic folding mechanism and realizing the accurate folding action of the folding plate. Attached Figure Description
[0018] Figure 1 A front view schematic diagram of a preferred embodiment of the corrugated cardboard box folding and shaping device provided by this utility model;
[0019] Figure 2 A front sectional view of a preferred embodiment of the corrugated cardboard box folding and shaping device provided by this utility model;
[0020] Figure 3 for Figure 2 The diagram shows an enlarged view of part A.
[0021] The following are the labels in the diagram: 1. Workbench; 2. Mounting frame; 3. Placement plate; 4. Folded edge plate; 5. Limiting plate; 6. Drive motor; 7. Threaded rod; 8. Threaded cylinder; 9. Support rod; 10. Water storage tank; 11. Suction pump; 12. Water inlet pipe; 13. Water outlet pipe; 14. Atomizing nozzle; 15. Mounting groove; 16. Heating plate; 17. Electric telescopic rod; 18. Guide rod; 19. Guide groove. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please refer to the following: Figures 1-3 ,in, Figure 1 A front view schematic diagram of a preferred embodiment of the corrugated cardboard box folding and shaping device provided by this utility model; Figure 2 A front sectional view of a preferred embodiment of the corrugated cardboard box folding and shaping device provided by this utility model; Figure 3 for Figure 2 The diagram shows an enlarged view of part A.
[0024] The corrugated cardboard box folding and shaping device includes: a workbench 1, on which a mounting frame 2 is fixedly installed; a placement plate 3 for placing cardboard, which is fixedly installed on the workbench 1, with folding plates 4 hinged to both sides of the placement plate 3; a limiting plate 5, which is slidably installed on the mounting frame 2 and corresponds to the placement plate 3; an automatic folding mechanism, which is located on the workbench 1 and is used to drive the folding plates 4 to fold the edges; and a humidification mechanism, which is located on the mounting frame 2 and is used to spray humidification before folding. The placement plate 3 and the limiting plate 5 ensure that the cardboard is placed stably, ensuring accurate folding position and improving folding accuracy. The two hinged folding plates 4 can fold up both sides of the cardboard to achieve the folding purpose, improving the quality of cardboard folding and reducing the scrap rate.
[0025] The automatic folding mechanism includes a drive motor 6, a threaded rod 7, a threaded cylinder 8, and a support rod 9. The drive motor 6 is fixedly installed at the bottom of the worktable 1. The threaded rod 7 is connected to the output shaft of the drive motor 6 via a coupling. The threaded cylinder 8 is threaded onto the threaded rod 7. The support rod 9 is hinged to the top of the threaded cylinder 8. The top end of the support rod 9 is hinged to the folding plate 4. The entire mechanism is driven by the drive motor 6 to automatically complete the folding action, eliminating the need for manual folding, greatly improving production efficiency, reducing labor intensity, and ensuring the consistency and stability of folding quality.
[0026] The humidification mechanism includes a water storage tank 10, a suction pump 11, an inlet pipe 12, an outlet pipe 13, and multiple atomizing nozzles 14. The water storage tank 10 is fixedly installed on one side of the mounting frame 2. The suction pump 11 is fixedly installed on the water storage tank 10. The inlet pipe 12 is fixedly connected to the inlet end of the suction pump 11, and the inlet end of the inlet pipe 12 extends into the water storage tank 10. The outlet pipe 13 is fixedly connected to the outlet end of the suction pump 11, and the outlet end of the outlet pipe 13 extends into the mounting frame 2. Multiple atomizing nozzles 14 are all located at the outlet end of the outlet pipe 13. Automatic humidification can be achieved through the suction pump 11, improving production efficiency. Multiple atomizing nozzles 14 can spray water evenly on the surface of the cardboard, ensuring that all parts of the cardboard are adequately humidified, avoiding insufficient or excessive humidification in certain areas, thereby effectively solving the problems of decreased folding endurance and bursting caused by cardboard drying.
[0027] The folding plate 4 is provided with an installation groove 15, and a heating plate 16 is fixedly installed in the installation groove 15. The heating of the heating plate 16 can reduce the brittleness of the cardboard, further reduce the possibility of cracking during folding, improve the folding quality, and make the edges of the folded cardboard neater and more beautiful.
[0028] An electric telescopic rod 17 is fixedly installed on the mounting frame 2. The output rod of the electric telescopic rod 17 is connected to the limiting plate 5. The telescopic rod 17 can control the telescopic distance of the output rod, thereby adjusting the position of the limiting plate 5 and realizing the automatic adjustment of the limiting plate 5.
[0029] A guide rod 18 is fixedly installed at the bottom of the workbench 1. A guide groove 19 is provided on one side of the threaded cylinder 8. One end of the guide rod 18 is slidably connected to the guide groove 19. The slidable connection between the guide rod 18 and the guide groove 19 provides a stable guide for the movement of the threaded cylinder 8, preventing the threaded cylinder 8 from rotating or deviating during the rotation of the threaded rod 7. This ensures that the threaded cylinder 8 can only move in a straight line along the axial direction of the threaded rod 7, thereby ensuring the accurate movement trajectory of the folding plate 4.
[0030] The workbench 1 has an opening for the threaded cylinder 8 and the support rod 9 to move. The opening allows the threaded cylinder 8 and the support rod 9 to move freely between the bottom and top of the workbench 1 without being obstructed by the workbench 1 surface. This ensures that the automatic folding mechanism can operate normally and achieve accurate folding of the folding plate 4.
[0031] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0032] The working principle of the corrugated cardboard box folding and shaping device provided by this utility model is as follows:
[0033] When in use, place the cardboard to be folded on the placement plate 3, start the electric telescopic rod 17, the output rod of the electric telescopic rod 17 extends, driving the limiting plate 5 to move down until the limiting plate 5 contacts the cardboard, which plays a limiting role in the cardboard and ensures that the folding position is accurate.
[0034] Before starting the folding operation, a humidification operation is performed. An appropriate amount of water is injected into the water storage tank 10 to ensure that the water volume is sufficient to complete one or more humidification operations before the cardboard folding. The suction pump 11 fixedly installed on the water storage tank 10 is started. After the suction pump 11 is started, water is sucked from the water storage tank 10 through the water inlet pipe 12. After the sucked water is pressurized by the suction pump 11, it is transported to the mounting frame 2 through the water outlet pipe 13. Multiple atomizing nozzles 14 set at the water outlet end of the water outlet pipe 13 atomize the water and spray it out, evenly spraying it on the surface of the cardboard to achieve spray humidification of the cardboard.
[0035] During folding, the heating plate 16 inside the folding plate 4 is turned on. After the heating plate 16 is powered on, it starts to heat up, raising the temperature of the folding plate 4. The heat is transferred to the cardboard, which softens the cardboard locally. The drive motor 6 is started and starts to run. The output shaft of the drive motor 6 drives the threaded rod 7 to rotate through the coupling. The threaded cylinder 8 is threaded onto the threaded rod 7. Under the rotation of the threaded rod 7, the threaded cylinder 8 will move along the axial direction of the threaded rod 7. The support rod 9, which is hinged to the top of the threaded cylinder 8, moves accordingly. The top of the support rod 9 is hinged to the folding plate 4. The movement of the support rod 9 will cause the folding plate 4 to rotate around its hinge point with the placement plate 3 until the folding plate 4 rotates to ninety degrees and contacts the side of the limiting plate 5, so that the cardboard is located between the folding plate 4 and the limiting plate 5, thereby realizing the folding operation of the cardboard.
[0036] Compared with related technologies, the corrugated cardboard box folding and shaping device provided by this utility model has the following beneficial effects:
[0037] This invention provides a corrugated cardboard box folding and shaping device. The placement plate 3 and the limiting plate 5 ensure stable placement of the cardboard, guaranteeing accurate folding position and improving folding accuracy. Two hinged folding plates 4 fold up both sides of the cardboard to achieve the folding purpose, improving the quality of cardboard folding and reducing scrap rate. The entire mechanism is automatically driven by a drive motor 6, eliminating the need for manual folding, greatly improving production efficiency and reducing labor intensity. Automatic folding also ensures consistent and stable folding quality. The suction pump 11 enables automatic humidification, further improving production efficiency. Multiple atomizing nozzles 14 evenly spray water onto the cardboard surface, ensuring sufficient humidification of all parts of the cardboard and avoiding insufficient or excessive humidification in certain areas. This effectively solves the problems of decreased folding endurance and bursting caused by cardboard drying. Heating by the heating plate 16 reduces the brittleness of the cardboard, further reducing the possibility of bursting during folding, improving folding quality, and making the edges of the folded cardboard neater and more aesthetically pleasing. The electric telescopic rod 17 controls the extension distance of the output rod, thereby adjusting the position of the limiting plate 5 and achieving automatic adjustment of the limiting plate 5. The sliding connection between the guide rod 18 and the guide groove 19 provides stable guidance for the movement of the threaded cylinder 8, preventing the threaded cylinder 8 from rotating or deviating during the rotation of the threaded rod 7, ensuring that the threaded cylinder 8 can only move in a straight line along the axis of the threaded rod 7, thus ensuring the accurate movement trajectory of the folding plate 4. The opening allows the threaded cylinder 8 and the support rod 9 to move freely between the bottom and top of the worktable 1 without being obstructed by the worktable 1 during movement, ensuring that the automatic folding mechanism can operate normally and achieve accurate folding action of the folding plate 4.
[0038] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art who understand the principle of the above utility model can clearly understand the specific details of its power mechanism, power supply system and control system.
[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A corrugated cardboard box folding and shaping device, characterized in that, include: A workbench, on which a mounting bracket is fixedly installed; A placement board for placing cardboard is fixedly installed on the workbench, and folded edge plates are hinged to both sides of the placement board. A limiting plate is slidably mounted on the mounting frame, and the limiting plate corresponds to the placement plate; An automatic folding mechanism is provided on the worktable and is used to drive the folding plate to fold the edge. A humidification mechanism, which is mounted on the mounting frame, is used to perform spray humidification before folding.
2. The corrugated cardboard box folding and shaping device according to claim 1, characterized in that, The automatic folding mechanism includes a drive motor, a threaded rod, a threaded cylinder, and a support rod. The drive motor is fixedly installed at the bottom of the worktable. The threaded rod is connected to the output shaft of the drive motor via a coupling. The threaded cylinder is threaded onto the threaded rod. The support rod is hinged to the top of the threaded cylinder, and the top end of the support rod is hinged to the folding plate.
3. The corrugated cardboard box folding and shaping device according to claim 1, characterized in that, The humidification mechanism includes a water storage tank, a suction pump, an inlet pipe, an outlet pipe, and multiple atomizing nozzles. The water storage tank is fixedly installed on one side of the mounting frame, the suction pump is fixedly installed on the water storage tank, the inlet pipe is fixedly connected to the inlet end of the suction pump, and the inlet end of the inlet pipe extends into the water storage tank. The outlet pipe is fixedly connected to the outlet end of the suction pump, and the outlet end of the outlet pipe extends into the mounting frame. Multiple atomizing nozzles are all located on the outlet end of the outlet pipe.
4. The corrugated cardboard box folding and shaping device according to claim 1, characterized in that, The folded edge plate has an installation groove, and a heating plate is fixedly installed in the installation groove.
5. The corrugated cardboard box folding and shaping device according to claim 1, characterized in that, An electric telescopic rod is fixedly installed on the mounting frame, and the output rod of the electric telescopic rod is connected to the limiting plate.
6. The corrugated cardboard box folding and shaping device according to claim 2, characterized in that, A guide rod is fixedly installed at the bottom of the workbench, and a guide groove is provided on one side of the threaded cylinder. One end of the guide rod is slidably connected to the guide groove.
7. The corrugated cardboard box folding and shaping device according to claim 2, characterized in that, The workbench has an opening for the threaded cylinder and the support rod to move.