A paperboard flattening device for corrugated box processing

By designing an automated cardboard flattening device, which utilizes a motor-driven reciprocating screw and half-gear meshing to achieve automatic fixing, flattening, and collection of cardboard, the problem of frequent manual intervention in existing technologies is solved, thereby improving the production efficiency and automation level of corrugated cardboard box processing.

CN224335190UActive Publication Date: 2026-06-09JICAI (SHANGHAI) IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JICAI (SHANGHAI) IND CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing corrugated cardboard flattening devices for corrugated box processing require frequent manual intervention in large-scale production, affecting the continuity and automation of production and making it difficult to meet the requirements of efficient and continuous automated production.

Method used

A cardboard flattening device was designed, comprising a worktable, a moving mechanism, a fixing mechanism, a guiding mechanism, and a flattening mechanism. The device uses a motor to drive a reciprocating screw to move the nut and the fixing plate downward, thereby achieving automatic fixing and flattening of the cardboard. The device also utilizes the intermittent meshing of a half-gear and a rack to achieve automatic collection of the cardboard, reducing manual intervention.

Benefits of technology

It realizes the automated collection and flattening process of paperboard, reduces reliance on manual labor, improves production efficiency and automation level, adapts to different sizes of paperboard, and improves the versatility and flexibility of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to corrugated case processing technical field, specifically is a kind of paperboard flattening device for corrugated case processing, including work bench, the work bench upper end is fixedly connected with placing table, recess is opened in the placing table, sleeve is fixedly connected in the recess, sliding rod is connected in the sleeve by spring. The utility model structure is reasonable, after starting motor, reciprocating screw rod rotates and makes nut move down, first U-shaped rod and fixed plate are driven to move down by long rod and second U-shaped plate, fixed plate fixes paperboard four corners, half gear and rack are not engaged in the process of fixed plate moving down. Motor continues to rotate, reciprocating screw rod drives nut to move reversely, fixed plate is separated from paperboard, half gear and rack are engaged, rack is pushed to make push plate push paperboard into collection box. Full course does not need manual paperboard, degree of automation is high, saves manpower, improves efficiency, is suitable for large-scale paperboard processing.
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Description

Technical Field

[0001] This utility model belongs to the field of corrugated cardboard box processing technology, specifically a cardboard flattening device for corrugated cardboard box processing. Background Technology

[0002] Corrugated cardboard boxes are widely used packaging products, ranking among the top in terms of usage among various packaging products. With their superior performance and good processing properties, corrugated cardboard boxes are gradually replacing traditional transport packaging containers such as wooden boxes, becoming the preferred packaging choice for many industries.

[0003] Currently, various methods have been proposed for a cardboard flattening device for corrugated carton processing. For example, a patent application with publication number "CN221518940U" discloses a cardboard flattening device for corrugated carton processing. By controlling the drive motor to work in reverse, the drive motor drives the lead screw to rotate in reverse, the lead screw drives the transport block to move in reverse, and the transport block drives the first distance sensor, the second electric push rod, the connecting rod, the connecting frame, the second distance sensor, and the pressure roller to move in reverse. When the distance between the first distance sensor and the gantry reinforcement frame reaches the second threshold preset by the first distance sensor, the drive motor is controlled to stop working. At the same time, the first electric push rod is controlled to work in reverse for a certain period of time and then stop. The first electric push rod drives the fixed plate to rise, so that the fixed plate is separated from the cardboard, and then the cardboard is taken out from the worktable. However, in large-scale production, after the cardboard is flattened, it needs to be manually removed from the worktable one by one, which requires frequent manual intervention in the production process, affecting the continuity of production and making it difficult to meet the requirements of efficient and continuous automated production in large-scale production.

[0004] Therefore, this utility model provides a cardboard flattening device for corrugated cardboard box processing. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A cardboard flattening device for corrugated carton processing according to this utility model includes a worktable, a placement platform fixedly connected to the upper end of the worktable, a groove opened on the placement platform, a sleeve fixedly connected to the groove, a sliding rod connected to the sleeve by a spring, the sliding rod sliding within the sleeve, a rectangular plate fixedly connected to the end of the sliding rod away from the sleeve, a push plate fixedly connected to the upper end of the rectangular plate, the push plate sliding on the surface of the placement platform, a rack fixedly connected to the side wall of the push plate, a moving mechanism for moving the rack installed on the worktable, a bracket fixedly connected to the lower end of the worktable, a reciprocating screw rotatably connected to the bracket, a nut threadedly connected to the reciprocating screw, a fixing mechanism for fixing the cardboard at the upper end of the placement platform installed on the nut, a guiding mechanism for guiding the nut installed on the bracket, and a flattening mechanism for flattening the cardboard installed at the upper end of the worktable.

[0007] Preferably, a material feeding trough is provided on the workbench, and a collection box is placed below the material feeding trough.

[0008] Preferably, the moving mechanism includes a half gear and a rotating rod, the rotating rod is fixedly installed at the upper end of the reciprocating lead screw, the rotating rod passes through the rotating worktable, the half gear is fixedly installed at the upper end of the rotating rod, and the half gear meshes with a rack.

[0009] Preferably, the fixing mechanism includes two first U-shaped rods, four fixing plates, a second U-shaped plate, and a long rod. The long rod is fixedly installed on the side wall of the nut, the second U-shaped plate is fixedly installed on the end of the long rod away from the nut, each of the placement platforms is fixedly installed on the upper end of the second U-shaped plate, and each of the fixing plates is fixedly installed on both ends of the first U-shaped rods. The second U-shaped plate passes through the sliding worktable.

[0010] Preferably, the guiding mechanism includes a guide rod, one end of which is fixedly installed on the inner bottom end of the bracket, and the other end of which is fixedly installed on the lower end of the worktable. The nut slides on the guide rod, and the guide rod passes through the nut.

[0011] Preferably, the flattening mechanism includes four support rods, a top plate, an electric telescopic rod, and a pressure plate. The support rods are fixedly installed on the upper end of the workbench, the top plate is fixedly installed on the support rods, the electric telescopic rod is fixedly installed on the lower end of the top plate, and the pressure plate is fixedly installed on the telescopic end of the electric telescopic rod.

[0012] Preferably, a motor is fixedly connected to the lower end of the bracket, the output shaft of the motor is fixedly connected to a reciprocating lead screw, and four fixed columns are fixedly connected to the lower end of the worktable.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The corrugated cardboard flattening device for corrugated box processing described in this utility model uses a starting motor to drive a reciprocating screw to rotate. The reciprocating screw drives a nut to move downwards. The nut, through a long rod and a second U-shaped plate, drives a first U-shaped rod and a fixing plate to move downwards, so that the fixing plate fixes the four corners of the cardboard. During the downward movement of the fixing plate, the half gear and the rack are not engaged. As the reciprocating screw rotates, the nut moves in the opposite direction, and the fixing plate disengages from the cardboard, allowing the cardboard to contact and be fixed. At this time, the half gear and the rack engage, and the half gear drives the rack to move, which in turn pushes the push plate to push the cardboard into the collection box for collection. There is no need for manual removal from the workbench one by one. The entire material handling process is completed automatically by the device, reducing reliance on manual labor, improving the automation level of the production process, saving human resources, improving production efficiency, and helping to achieve large-scale and efficient cardboard processing production.

[0015] 2. The corrugated cardboard flattening device for corrugated box processing described in this utility model uses a pusher plate to push the processed cardboard into a collection box for collection. Simultaneously, a spring is compressed. When the rack and pinion disengage, the spring automatically resets, causing the slide rod to automatically move the pusher plate back to its original position for the next operation. This design allows the device to automatically return to its initial state, preparing for the next cardboard collection operation, improving the device's efficiency and reliability, and reducing manual intervention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the workbench, second U-shaped rod, rack, half gear, sleeve, long rod, and collection box of this utility model;

[0019] Figure 3 This is a schematic diagram of the moving mechanism, guiding mechanism, and fixing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model.

[0021] In the diagram: 1. Workbench; 2. Support rod; 3. Top plate; 4. Fixed column; 5. Motor; 6. Collection box; 7. Discharge chute; 8. Placement platform; 9. First U-shaped rod; 10. Fixed plate; 11. Electric telescopic rod; 12. Pressure plate; 13. Second U-shaped rod; 14. Rack; 15. Half gear; 16. Groove; 17. Sleeve; 18. Long rod; 19. Nut; 20. Guide rod; 21. Reciprocating screw; 22. Bracket; 23. Push plate; 24. Rectangular plate; 25. Slide rod; 26. Spring; 27. Rotating rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 4 As shown in the embodiment of this utility model, a cardboard flattening device for corrugated cardboard box processing includes a workbench 1. A placement platform 8 is fixedly connected to the upper end of the workbench 1. A groove 16 is provided on the placement platform 8. A sleeve 17 is fixedly connected inside the groove 16. A sliding rod 25 is connected inside the sleeve 17 via a spring 26. The sliding rod 25 slides inside the sleeve 17. A rectangular plate 24 is fixedly connected to the end of the sliding rod 25 away from the sleeve 17. A push plate 23 is fixedly connected to the upper end of the rectangular plate 24. The push plate 23 moves on the placement platform 8. The surface of the platform 8 slides. A rack 14 is fixedly connected to the side wall of the push plate 23. A moving mechanism for moving the rack 14 is installed on the worktable 1. A bracket 22 is fixedly connected to the lower end of the worktable 1. A reciprocating screw 21 is rotatably connected to the bracket 22. A nut 19 is threadedly connected to the reciprocating screw 21. A fixing mechanism for fixing the cardboard at the upper end of the platform 8 is installed on the nut 19. A guiding mechanism for guiding the nut 19 is installed on the bracket 22. A flattening mechanism for flattening the cardboard is installed at the upper end of the worktable 1. During operation, the cardboard to be flattened is placed on the upper end of the platform 8, and the motor 5 is started. The motor 5 drives the reciprocating screw 21 to rotate. The reciprocating screw 21 drives the half gear 15 to rotate through the rotating rod 27. The half gear 15 is not initially engaged with the rack 14, so the rotation of the reciprocating screw 21 will not drive the rack 14 to move. The rotation of the reciprocating screw 21 causes the nut 19 to move up and down. When the nut 19 moves down, the nut 19 drives the long rod 18 to move down. The long rod 18 drives the first U-shaped rod 9 to move down through the second U-shaped plate 13. The first U-shaped rod 9 drives the fixing plate 10 to move down, so that the fixing plate 10 contacts the four corners of the cardboard, thus completing the fixing of the cardboard.

[0025] like Figure 1 and Figure 2 As shown, a feeding trough 7 is provided on the workbench 1, and a collection box 6 is placed below the feeding trough 7. This structure, with the feeding trough 7 on the workbench 1 and the collection box 6 below, allows the flattened cardboard to fall directly into the collection box 6 through the feeding trough 7, facilitating the collection and sorting of the cardboard. This design avoids the tedious manual removal of cardboard pieces one by one, improving collection efficiency.

[0026] like Figure 3 As shown, the moving mechanism includes a half gear 15 and a rotating rod 27. The rotating rod 27 is fixedly mounted on the upper end of the reciprocating screw 21 and passes through the rotating worktable 1. The half gear 15 is fixedly mounted on the upper end of the rotating rod 27 and meshes with the rack 14. During operation, the reciprocating screw 21 drives the rotating rod 27 to rotate, and the rotating rod 27 drives the half gear 15 to rotate. Through the above structure, the half gear 15 achieves intermittent meshing with the rack 14 by utilizing only half of its teeth. When the half gear 15 meshes with the rack 14, the rack 14 moves; when the half gear 15 does not mesh with the rack 14, the rack 14 is stationary.

[0027] like Figures 1 to 3 As shown, the fixing mechanism includes two first U-shaped rods 9, four fixing plates 10, a second U-shaped plate 13, and a long rod 18. The long rod 18 is fixedly installed on the side wall of the nut 19. The second U-shaped plate 13 is fixedly installed on the end of the long rod 18 away from the nut 19. Each placement platform 8 is fixedly installed on the upper end of the second U-shaped plate 13. Each fixing plate 10 is fixedly installed on both ends of the first U-shaped rods 9. The second U-shaped plate 13 passes through the sliding worktable 1. During operation, the nut 19 drives the long rod 18 to move downward. The long rod 18 drives the first U-shaped rods 9 to move downward through the second U-shaped plate 13. The first U-shaped rods 9 drive the fixing plates 10 to move downward, thereby making the fixing plates 10 contact the four corners of the cardboard, completing the fixing of the cardboard and ensuring the stability of the cardboard during the flattening process. This multi-point fixing method can adapt to cardboard of different sizes, improving the versatility and flexibility of the device.

[0028] like Figure 3 As shown, the guiding mechanism includes a guide rod 20. One end of the guide rod 20 is fixedly installed on the inner bottom end of the bracket 22, and the other end is fixedly installed on the lower end of the worktable 1. The nut 19 slides on the guide rod 20, and the guide rod 20 passes through the nut 19. Through this structure, the guide rod 20 in the guiding mechanism provides stable guidance for the movement of the nut 19, ensuring that the nut 19 moves axially along the lead screw 21. This guiding design reduces the wobbling and offset of the nut 19 during movement, improving the stability and reliability of the device.

[0029] like Figure 1 As shown, the flattening mechanism includes four support rods 2, a top plate 3, an electric telescopic rod 11, and a pressure plate 12. The support rods 2 are fixedly installed on the upper end of the workbench 1, the top plate 3 is fixedly installed on the support rods 2, the electric telescopic rod 11 is fixedly installed on the lower end of the top plate 3, and the pressure plate 12 is fixedly installed on the telescopic end of the electric telescopic rod 11. During operation, activating the electric telescopic rod 11 moves the pressure plate 12 downward, causing the pressure plate 12 to press the cardboard.

[0030] like Figure 1 As shown, a motor 5 is fixedly connected to the lower end of the bracket 22, and the output shaft of the motor 5 is fixedly connected to the reciprocating lead screw 21. Four fixed posts 4 are fixedly connected to the lower end of the worktable 1. Through the above structure, the motor 5 is fixedly installed at the lower end of the bracket 22, providing a stable power output and ensuring that the rotation of the lead screw 21 is smooth and reliable. At the same time, the four fixed posts 4 enhance the structural strength and stability of the entire device, enabling the device to maintain good performance under long-term, high-intensity working conditions.

[0031] Working principle: Place the cardboard to be flattened on the upper end of the platform 8. Start the motor 5. The motor 5 drives the reciprocating screw 21 to rotate. The reciprocating screw 21 drives the half gear 15 to rotate through the rotating rod 27. Initially, the half gear 15 is not engaged with the rack 14, so the rotation of the reciprocating screw 21 does not move the rack 14. The rotation of the reciprocating screw 21 causes the nut 19 to move up and down. When the nut 19 moves down, it drives the long rod 18 down. The long rod 18 drives the first U-shaped rod 9 down through the second U-shaped plate 13. The first U-shaped rod 9 drives the fixing plate 10 down, so that the fixing plate 10 contacts the four corners of the cardboard, completing the fixing of the cardboard. Then stop the motor 5. At this time, the fixing plate 10 has just moved to the bottom. When the motor 5 is restarted, the nut 19 moves up. Start the electric telescopic rod 11 to drive the pressure plate 12 down, so that the pressure plate 12 performs the pressing work on the cardboard.

[0032] After the cardboard is pressed, the motor 5 is restarted, causing the reciprocating screw 21 to rotate. The reciprocating screw 21 drives the nut 19 to move upward, thereby causing the fixing plate 10 to disengage from the cardboard and making the cardboard contact and fix it. At this time, the reciprocating screw 21 drives the half gear 15 to mesh with the rack 14, thereby causing the rack 14 to drive the push plate 23 to move on the upper surface of the placement table 8. The push plate 23 pushes the cardboard into the collection box 6. While the push plate 23 is moving, the slide rod 25 moves towards the inner bottom end of the sleeve 17, causing the spring 26 to be compressed. When the half gear 15 rotates to the point where it does not mesh with the rack 14, the cardboard has now been pushed into the collection box 6. Then the motor 5 is stopped, and the half gear 15 and the rack 14 are no longer meshed, preparing for the lowering of the fixing plate 10 to fix the cardboard.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A paperboard flattening device for corrugated box processing, characterized by: Includes a workbench (1), with a placement platform (8) fixedly connected to the upper end of the workbench (1). A groove (16) is provided on the placement platform (8), and a sleeve (17) is fixedly connected inside the groove (16). A sliding rod (25) is connected inside the sleeve (17) via a spring (26). The sliding rod (25) slides within the sleeve (17). A rectangular plate (24) is fixedly connected to the end of the sliding rod (25) away from the sleeve (17). A push plate (23) is fixedly connected to the upper end of the rectangular plate (24). The push plate (23) slides on the surface of the placement platform (8). A rack (14) is fixedly connected to the side wall of the plate (23). A moving mechanism for moving the rack (14) is installed on the worktable (1). A bracket (22) is fixedly connected to the lower end of the worktable (1). A reciprocating screw (21) is rotatably connected to the bracket (22). A nut (19) is threaded onto the reciprocating screw (21). A fixing mechanism for fixing the cardboard at the upper end of the placement platform (8) is installed on the nut (19). A guiding mechanism for guiding the nut (19) is installed on the bracket (22). A flattening mechanism for flattening the cardboard is installed at the upper end of the worktable (1).

2. A paperboard flattening device for corrugated box processing according to claim 1, characterized in that: The workbench (1) is provided with a feeding trough (7), and a collection box (6) is placed below the feeding trough (7).

3. A paperboard flattening device for corrugated box processing according to claim 1, characterized in that: The moving mechanism includes a half gear (15) and a rotating rod (27). The rotating rod (27) is fixedly installed on the upper end of the reciprocating screw (21). The rotating rod (27) passes through the rotating worktable (1). The half gear (15) is fixedly installed on the upper end of the rotating rod (27). The half gear (15) meshes with the rack (14).

4. A paperboard flattening device for corrugated box processing according to claim 1, characterized in that: The fixing mechanism includes two first U-shaped rods (9), four fixing plates (10), a second U-shaped plate (13), and a long rod (18). The long rod (18) is fixedly installed on the side wall of the nut (19). The second U-shaped plate (13) is fixedly installed on the end of the long rod (18) away from the nut (19). Each of the placement platforms (8) is fixedly installed on the upper end of the second U-shaped plate (13). Each of the fixing plates (10) is fixedly installed on both ends of the first U-shaped rods (9). The second U-shaped plate (13) passes through the sliding worktable (1).

5. A paperboard flattening device for corrugated box processing according to claim 1, characterized in that: The guiding mechanism includes a guide rod (20), one end of which is fixedly installed on the inner bottom end of the bracket (22), and the other end of which is fixedly installed on the lower end of the workbench (1). The nut (19) slides on the guide rod (20), and the guide rod (20) passes through the nut (19).

6. A paperboard flattening device for corrugated box processing according to claim 1, characterized in that: The flattening mechanism includes four support rods (2), a top plate (3), an electric telescopic rod (11), and a pressure plate (12). The support rods (2) are fixedly installed on the upper end of the workbench (1), the top plate (3) is fixedly installed on the support rods (2), the electric telescopic rod (11) is fixedly installed on the lower end of the top plate (3), and the pressure plate (12) is fixedly installed on the telescopic end of the electric telescopic rod (11).

7. A paperboard flattening device for corrugated box processing according to claim 1, characterized in that: The lower end of the support (22) is fixedly connected with a motor (5), the output shaft of the motor (5) is fixedly connected with a reciprocating lead screw (21), and the lower end of the workbench (1) is fixedly connected with four fixed columns (4).