A corrugated cardboard box folding device

By introducing a limiting plate and an anti-slip plate into the corrugated cardboard folding device, combined with a transmission rod and gear assembly, the problems of displacement and pressure blockage of corrugated cardboard during processing are solved, achieving a stable folding effect.

CN224276418UActive Publication Date: 2026-05-26JIANGXI TIANMEI PAPER PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI TIANMEI PAPER PROD CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-26

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Abstract

This utility model discloses a corrugated cardboard box folding and pressing device, including a base, a support frame, a pressure plate, and crossbars. The support frame has through slots on both its left and right side walls. Two crossbars pass through the through slots on both sides and are fixedly connected to their respective limiting plates. The pressure plate has two storage slots at its bottom. A vertical rod passes through the inner surface of each storage slot and is slidably connected to it. An anti-slip plate is fixedly connected to the bottom of each vertical rod. A spring is sleeved on the surface of the vertical rod between the anti-slip plate and the inner surface of the storage slot. This utility model, by setting limiting plates on the sides and anti-slip plates on the top, provides lateral and top-level limiting before processing, respectively, ensuring stability during processing.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box processing technology, specifically a corrugated cardboard box folding and pressing device. Background Technology

[0002] Corrugated cardboard boxes are a widely used packaging material with advantages such as low cost, light weight, easy processing, high strength, strong printability, and convenient storage and handling. The production process of corrugated cardboard boxes involves multiple steps, among which the folding process is a crucial step, as it directly affects the forming quality of the cardboard box and its subsequent performance.

[0003] Existing folding devices often fail to ensure the stability of corrugated cardboard during the creasing process, easily resulting in displacement or deviation, which affects the accuracy and effect of folding. In particular, when folding corrugated cardboard, the lateral pressure plate limiting structure can easily obstruct the folding components. To address this issue, a new technical solution is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a corrugated carton folding and pressing device, which solves the problems mentioned in the background art, such as the easy displacement or offset of the existing folding and pressing device during the creasing process, and the easy obstruction of the folding and pressing component by the lateral pressure plate limiting structure when folding corrugated cardboard.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrugated cardboard box folding and pressing device, comprising a base, a support frame, a pressure plate, and crossbars. The support frame has through slots on both its left and right side walls. Two crossbars pass through the through slots on both sides and are fixedly connected to their respective limiting plates. The pressure plate has two storage slots at its bottom. A vertical rod passes through the inner surface of the storage slot and is slidably connected to the vertical rod. An anti-slip plate is fixedly connected to the bottom of the vertical rod. A spring is sleeved on the surface of the vertical rod between the anti-slip plate and the inner surface of the storage slot.

[0006] In this technical solution, by setting a limiting plate on the side and an anti-slip plate on the top, the side and top limits are respectively set before processing, ensuring stability during processing and avoiding deviation that affects the processing effect. In addition, the anti-slip plate will retract into the storage groove during processing, which will not cause excessive compression to the corrugated paper and ensure the normal folding and pressing.

[0007] Preferably, a vertical transmission rod is rotatably connected inside the support frame above one side of the through groove. The bottom of the transmission rod is located on one side of the crossbar and is fixedly connected to a circular gear. The circular gear meshes with the convex teeth evenly opened on the side wall of the crossbar.

[0008] Preferably, a first bevel gear is fixedly connected to the top end of the first transmission rod, and a second transmission rod is rotatably connected to the inner side of the top end of the support frame. Both ends of the second transmission rod are fixedly connected to first bevel gears. The first bevel gear on one side of the second transmission rod meshes with the first bevel gear at the top end of the first transmission rod, and the first bevel gear on the other side of the second transmission rod meshes with the second bevel gear fixed to the outer surface of the threaded rod.

[0009] Preferably, the upper and lower ends of the threaded rod are rotatably connected to the inner top end of the top frame and the inner side of the central groove at the top end of the support frame, respectively. A lifting block passes through the surface of the threaded rod and is threadedly connected to the lifting block. Two connecting columns are fixedly connected to the bottom of the lifting block. A pressure plate is fixedly connected to the bottom of the connecting columns. A pressure strip is fixedly connected to the bottom of the pressure plate.

[0010] Preferably, the bottom of the base has a bottom groove, and a bidirectional lead screw is rotatably connected to the inner side of the bottom groove. A servo motor is fixedly connected to the outer side wall of the base corresponding to the horizontal height of the bidirectional lead screw. The tail end of the drive shaft of the servo motor is fixedly connected to one end of the bidirectional lead screw. Two bottom blocks penetrate the surface of the bidirectional lead screw and are threadedly connected to the bottom blocks. A folding frame is fixedly connected to the side wall of the bottom block, and a crossbar is fixedly connected to the upper end of the side wall of the folding frame.

[0011] Preferably, a baffle is fixedly connected to the top of the base, and an electric push rod is fixedly connected to the side wall of the baffle. The telescopic end of the electric push rod passes through the surface of the baffle and is fixedly connected to the discharge plate.

[0012] Preferably, the bottom ends of the support frame are fixedly connected to the left and right outer walls of the base, and two sliding rods are fixedly connected between the top frame on one side of the threaded rod and the support frame. The sliding rods pass through the lifting block and are slidably connected to the lifting block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides side limiting plates and top anti-slip plates for pre-processing side and top limiting, respectively, ensuring stability during processing, preventing deviation from affecting the processing effect, and the anti-slip plates retract into the storage groove during processing, preventing excessive compression of the corrugated paper and ensuring normal folding.

[0015] 2. This utility model uses a first transmission rod and a second transmission rod. When the limiting rod is carried away from the corrugated paper by the crossbar, the protruding teeth on the side wall of the crossbar drive the circular gear and the first transmission rod to rotate. The first transmission rod then drives the second transmission rod and the threaded rod to rotate through the bevel gear set, causing the lifting block and the pressure plate to descend. This avoids the limiting plate blocking the path of the bending and pressing. The limiting plate and the pressure plate are linked together to ensure stable operation during the processing. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is an overall view of the present invention;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the pressure plate structure of this utility model.

[0020] In the diagram: 1. Base; 101. Bottom groove; 2. Baffle; 201. Electric actuator; 202. Discharge plate; 3. Two-way lead screw; 301. Servo motor; 302. Base block; 4. Folding frame; 5. Crossbar; 501. Limiting plate; 502. Convex tooth; 6. Support frame; 601. Through groove; 7. First transmission rod; 701. Circular gear; 8. Second transmission rod; 9. First bevel gear; 10. Threaded rod; 1001. Second bevel gear; 11. Top frame; 12. Lifting block; 121. Slide rod; 13. Connecting column; 14. Pressure plate; 141. Pressure strip; 142. Storage groove; 15. Vertical rod; 151. Spring; 16. Anti-slip plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0022] A corrugated cardboard box folding device, see [link / reference] Figures 1 to 3 The device includes a base 1, a support frame 6, a pressure plate 14, and a crossbar 5. The support frame 6 has through slots 601 on both the left and right side walls. A folding frame 4 is fixedly connected to the side wall of the base block 302. A crossbar 5 is fixedly connected to the upper end of the side wall of the folding frame 4. The two crossbars 5 pass through the through slots 601 on both sides and are fixedly connected to their respective limiting plates 501. The crossbars 5 on the side wall of the folding frame 4, along with the limiting plates 501, laterally limit the corrugated paper placed on the base 1 from the side, thereby making the corrugated paper neatly arranged and facilitating subsequent processing.

[0023] Specifically, such as Figure 1 and Figure 3As shown, two connecting columns 13 are fixedly connected to the bottom of the lifting block 12. A pressure plate 14 is fixedly connected to the bottom of the connecting columns 13. Two storage slots 142 are opened at the bottom of the pressure plate 14. A vertical rod 15 passes through the inner surface of the storage slot 142 and is slidably connected to the vertical rod 15. An anti-slip plate 16 is fixedly connected to the bottom of the vertical rod 15. A spring 151 is sleeved on the surface of the vertical rod 15 between the anti-slip plate 16 and the inner surface of the storage slot 142. The lifting block 12 lifts and lowers with the connecting columns 13 and the pressure plate 14, limiting and folding the corrugated paper from above. Before contacting the corrugated paper, the anti-slip plate... The vertical bar 16 will first come into contact with the corrugated paper. Since the vertical bar 15 and the anti-slip plate 16 can only move vertically, they will not cause the corrugated paper to move. Thus, they will replace the pressure plate 14 in limiting the corrugated paper before it takes over. During the descent, the anti-slip plate 16 will gradually retract into the storage groove 142. The spring 151 has a light elastic force, which can be easily compressed to avoid irreversible indentations on the surface of the corrugated paper. The bottom of the pressure plate 14 is fixedly connected to the pressure strip 141, which can squeeze the surface of the corrugated paper to form indentations, thus facilitating folding.

[0024] Specifically, such as Figure 2 As shown, a vertical transmission rod 7 is rotatably connected inside the support frame 6 above the through groove 601 on one side. The bottom of the transmission rod 7 is located on one side of the crossbar 5 and is fixedly connected to a circular gear 701. The circular gear 701 meshes with the protruding teeth 502 evenly opened on the side wall of the crossbar 5. When the crossbar 5 moves, it will drive the circular gear 701 to rotate, thus driving the entire transmission rod 7 to rotate, and the response is very sensitive.

[0025] Furthermore, such as Figure 2 As shown, a first bevel gear 9 is fixedly connected to the top of the first transmission rod 7. A second transmission rod 8 is rotatably connected to the inner side of the top of the support frame 6. Both ends of the second transmission rod 8 are fixedly connected to first bevel gears 9. The first bevel gear 9 on one side of the second transmission rod 8 meshes with the first bevel gear 9 at the top of the first transmission rod 7. The first bevel gear 9 on the other side of the second transmission rod 8 meshes with the second bevel gear 1001 fixed to the outer surface of the threaded rod 10. When the crossbar 5 moves away from the corrugated paper with the limiting plate 501, the circular gear 701 and the first transmission rod 7 are driven to rotate. Then the second transmission rod 8 is driven to rotate by the first transmission rod 7, and the second transmission rod 8 drives the threaded rod 10 to rotate. During the rotation, the lifting block 12 and the pressure plate 14 can be lowered to replace the limiting plate 501 to continue to fix the corrugated paper.

[0026] It is worth noting that, such as Figure 1 and 2As shown, the upper and lower ends of the threaded rod 10 are rotatably connected to the inner top end of the top frame 11 and the inner side of the central groove at the top of the support frame 6, respectively. The surface of the threaded rod 10 has a lifting block 12 that is threadedly connected to the lifting block 12. The lifting block 12 moves up and down along the threaded rod, causing the pressure plate 14 to move up and down. The bottom ends of the support frame 6 are fixedly connected to the left and right outer walls of the base 1, respectively. Two sliding rods 121 are fixedly connected between the top frame 11 and the support frame 6 on one side of the threaded rod 10. The sliding rods 121 pass through the lifting block 12 and are slidably connected to the lifting block 12. The sliding rods 121 can restrict the lifting path of the lifting block 12, ensuring the stability of the lifting block 12 during the lifting process.

[0027] It is worth noting that, such as Figure 2 As shown, a bottom groove 101 is formed at the bottom of the base 1. A bidirectional lead screw 3 is rotatably connected to the inner side of the bottom groove 101. A servo motor 301 is fixedly connected to the outer wall of the base 1 at the horizontal height of the bidirectional lead screw 3. The tail end of the drive shaft of the servo motor 301 is fixedly connected to one end of the bidirectional lead screw 3. Two bottom blocks 302 pass through the surface of the bidirectional lead screw 3 and are threadedly connected to the bottom blocks 302. After the servo motor 301 is started, it drives the bidirectional lead screw 3 to rotate, adjusting the distance between the two bottom blocks 302, thereby allowing the limiting plate 501 to move closer to or further away from the corrugated paper.

[0028] It is worth noting that, such as Figure 1 As shown, a baffle 2 is fixedly connected to the top of the base 1, and an electric push rod 201 is fixedly connected to the side wall of the baffle 2. The telescopic end of the electric push rod 201 passes through the surface of the baffle 2 and is fixedly connected to the discharge plate 202. After the processing is completed, the pressure plate 14 is raised. At this time, the electric push rod 201 is activated, which drives the discharge plate 202 to move laterally, thereby pushing out the corrugated paper and facilitating the discharge.

[0029] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A corrugated cardboard box folding and pressing device, comprising a base (1), a support frame (6), a pressure plate (14), and a crossbar (5), characterized in that: The support frame (6) has through slots (601) on both the left and right side walls. The two crossbars (5) pass through the through slots (601) on both sides and are fixedly connected to their respective limiting plates (501). The bottom of the pressure plate (14) has two storage slots (142). The inner surface of the storage slot (142) is slidably connected to the vertical rod (15). The bottom of the vertical rod (15) is fixedly connected to the anti-slip plate (16). A spring (151) is sleeved on the surface of the vertical rod (15) between the anti-slip plate (16) and the inner surface of the storage slot (142).

2. The corrugated cardboard box folding and pressing device according to claim 1, characterized in that: One of the support frames (6) above the through groove (601) on one side is rotatably connected to a vertical transmission rod (7). The bottom of the transmission rod (7) is located on one side of the crossbar (5) and is fixedly connected to a circular gear (701). The circular gear (701) meshes with the protruding teeth (502) evenly opened on the side wall of the crossbar (5).

3. The corrugated cardboard box folding and pressing device according to claim 2, characterized in that: A first bevel gear (9) is fixedly connected to the top end of the first transmission rod (7). A second transmission rod (8) is rotatably connected to the inner side of the top end of the support frame (6). A first bevel gear (9) is fixedly connected to both ends of the second transmission rod (8). The first bevel gear (9) on one side of the second transmission rod (8) meshes with the first bevel gear (9) at the top end of the first transmission rod (7). The first bevel gear (9) on the other side of the second transmission rod (8) meshes with the second bevel gear (1001) fixed on the outer surface of the threaded rod (10).

4. A corrugated cardboard box folding and pressing device according to claim 3, characterized in that: The upper and lower ends of the threaded rod (10) are rotatably connected to the inner top end of the top frame (11) and the inner side of the central groove at the top end of the support frame (6), respectively. The surface of the threaded rod (10) is penetrated by a lifting block (12) and threadedly connected to the lifting block (12). Two connecting columns (13) are fixedly connected to the bottom of the lifting block (12). A pressure plate (14) is fixedly connected to the bottom of the connecting column (13). A pressure strip (141) is fixedly connected to the bottom of the pressure plate (14).

5. A corrugated cardboard box folding and pressing device according to claim 1, characterized in that: The base (1) has a bottom groove (101) at its bottom. A bidirectional lead screw (3) is rotatably connected to the inner side of the bottom groove (101). A servo motor (301) is fixedly connected to the outer wall of the base (1) at the horizontal height of the bidirectional lead screw (3). The tail end of the drive shaft of the servo motor (301) is fixedly connected to one end of the bidirectional lead screw (3). Two bottom blocks (302) pass through the surface of the bidirectional lead screw (3) and are threadedly connected to the bottom blocks (302). A folding frame (4) is fixedly connected to the side wall of the bottom block (302). A crossbar (5) is fixedly connected to the upper end of the side wall of the folding frame (4).

6. A corrugated cardboard box folding and pressing device according to claim 1, characterized in that: A baffle (2) is fixedly connected to the top of the base (1), and an electric push rod (201) is fixedly connected to the side wall of the baffle (2). The telescopic end of the electric push rod (201) passes through the surface of the baffle (2) and is fixedly connected to the discharge plate (202).

7. A corrugated cardboard box folding and pressing device according to claim 4, characterized in that: The bottom ends of the support frame (6) are fixedly connected to the left and right outer walls of the base (1), and two sliding rods (121) are fixedly connected between the top frame (11) on one side of the threaded rod (10) and the support frame (6). The sliding rods (121) pass through the lifting block (12) and are slidably connected to the lifting block (12).