Degradable paperboard polishing equipment
By using automated sanding and pressing components, the problems of uneven sanding and low efficiency caused by manual support in existing technologies have been solved, achieving efficient and automated sanding of biodegradable cardboard.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GULI PAPER IND SHANGHAI CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-05
AI Technical Summary
Existing biodegradable cardboard sanding devices require manual support, resulting in uneven sanding and low efficiency, and also require manual flipping.
The automated sanding and pressing components are used, driven by servo motors and cylinders, to achieve automatic movement and sanding of the cardboard, avoiding manual contact.
It improves the uniformity and efficiency of cardboard sanding, eliminating the need for manual operation and enhancing processing quality and efficiency.
Smart Images

Figure CN224196507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard processing technology, and in particular to a biodegradable cardboard sanding device. Background Technology
[0002] Biodegradable refers to substances that can decompose naturally, such as paper, wood, plants, and food. Under the action of microorganisms, they eventually form compounds in natural forms such as carbon dioxide and water. With the increasing demands for ecological environmental protection, many packaging materials now use biodegradable paperboard, which is more environmentally friendly. Since biodegradable paperboard needs to be cut during the production process, burrs are likely to appear on the sides after cutting. Therefore, a sanding device is needed to improve the production quality of biodegradable paperboard.
[0003] Existing sanding equipment typically requires workers to manually support the cardboard and bring it into contact with the surface of the sanding device during the sanding process. This method is subjective because it is entirely manual, resulting in uneven sanding of the cardboard sides and low sanding efficiency. After one side is sanded, the cardboard needs to be flipped over and sanded again, indicating room for improvement. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a biodegradable cardboard sanding device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A biodegradable cardboard sanding device includes a workbench, a base plate fixedly connected to the inner bottom wall of the workbench, a plurality of strip grooves formed on the upper surface of the base plate, a rotating shaft rotatably connected to the inner wall of the strip grooves, a circular column fixedly connected to the surface of the rotating shaft, two sliding grooves formed on the inner bottom wall of the workbench, a sanding component fixedly connected to the front of the workbench, and a gantry frame fixedly connected to the left and right sides of the workbench, with a pressing component fixedly connected to the upper surface of the gantry frame.
[0007] The sanding assembly is used to sand the left and right sides of the cardboard, and the clamping assembly is used to improve the stability of the cardboard during the sanding process and can also drive the cardboard to move left and right so as to contact the sanding assembly.
[0008] Preferably, the grinding assembly includes a first servo motor, the output end of which is fixedly connected to an adjusting screw, the rear end of which is rotatably connected to the inner rear wall of the worktable, and a movable table is slidably connected to the inner bottom wall of the worktable. The movable table has a threaded hole on its front side, and the movable table is threadedly connected to the adjusting screw through the threaded hole.
[0009] Preferably, a dual-axis motor is fixedly connected to the upper surface of the movable platform, and a connecting shaft is fixedly connected to each of the two output ends of the dual-axis motor. A grinding disc is fixedly connected to the end of each connecting shaft away from the dual-axis motor, and the two grinding discs correspond to the positions of the sliding groove.
[0010] Preferably, the clamping assembly includes a cylinder, the output end of which extends to the lower surface of the gantry and is fixedly connected to a fixed frame. A second servo motor is fixedly connected to the front of the fixed frame, and a connecting rod is fixedly connected to the output end of the second servo motor. The rear end of the connecting rod extends into the interior of the fixed frame and is rotatably connected to the inner rear wall of the fixed frame.
[0011] Preferably, a transmission gear is fixedly connected to the surface of the connecting rod inside the fixed frame, and strip plates are fixedly connected to both the left and right sides of the fixed frame. A limit groove is opened on the lower surface of the strip plate, and a positioning rod is fixedly connected to the inner wall of the limit groove. A limit block is slidably connected to the inner wall of the limit groove, and a circular hole is opened on the side of the limit block. The limit block is slidably connected to the surface of the positioning rod through the circular hole.
[0012] Preferably, a support rod is fixedly connected to the lower surface of each of the two limiting blocks, and a right-angle connecting frame is fixedly connected to the bottom end of the support rod. A pressure plate is fixedly connected to the opposite face of the two right-angle connecting frames, and the position of the pressure plate corresponds to the position of the bottom plate.
[0013] Preferably, a rack plate is fixedly connected to the upper surface of the pressure plate, the position of the rack plate corresponds to the position of the fixed frame, and the rack plate meshes with the transmission gear.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. With the base plate and pressing components, the stability of the cardboard during the sanding process can be improved by the pressure plate. At the same time, the cardboard can be moved left and right on the base plate by the cooperation of the pressure plate and the circular column, so that the left and right sides of the cardboard can come into contact with the sides of the two sanding discs. The sanding discs can perform sanding operations on the left and right sides of the cardboard. No manual operation is required throughout the process, which greatly improves the processing quality and efficiency of the cardboard.
[0016] 2. With the setting of the sanding component, during use, the first servo motor can drive the movable table to move back and forth through the adjusting screw, thereby driving the two sanding discs to move back and forth in the slide groove, which is convenient for sanding different positions on the left and right sides of the cardboard without moving the cardboard, making it more practical. Attached Figure Description
[0017] Figure 1 This is a top-view three-dimensional structural diagram of a biodegradable cardboard sanding device proposed in this utility model;
[0018] Figure 2 This is a bottom-view three-dimensional structural diagram of a biodegradable cardboard sanding device proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of the base plate of a biodegradable cardboard sanding device proposed in this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the sanding component of a biodegradable cardboard sanding device proposed in this utility model;
[0021] Figure 5 This is a frontal cross-sectional view of the fixing frame structure of a biodegradable cardboard sanding device proposed in this utility model.
[0022] In the diagram: 1. Workbench; 2. Base plate; 3. Rotating shaft; 4. Circular column; 5. Gantry frame; 6. First servo motor; 7. Adjusting screw; 8. Movable table; 9. Dual-axis motor; 10. Connecting shaft; 11. Grinding disc; 12. Cylinder; 13. Fixing frame; 14. Second servo motor; 15. Connecting rod; 16. Transmission gear; 17. Strip plate; 18. Positioning rod; 19. Limiting block; 20. Support rod; 21. Right-angle connecting frame; 22. Pressure plate; 23. Rack plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Example 1, referring to Figure 1-5 A biodegradable cardboard sanding device includes a workbench 1, a base plate 2 fixedly connected to the inner bottom wall of the workbench 1, a plurality of strip grooves opened on the upper surface of the base plate 2, a rotating shaft 3 rotatably connected to the inner wall of the strip grooves, a circular column 4 fixedly connected to the surface of the rotating shaft 3, two sliding grooves opened on the inner bottom wall of the workbench 1, a sanding component fixedly connected to the front of the workbench 1, a gantry frame 5 fixedly connected to the left and right sides of the workbench 1, and a pressing component fixedly connected to the upper surface of the gantry frame 5.
[0025] The sanding assembly is used to sand the left and right sides of the cardboard, while the clamping assembly is used to improve the stability of the cardboard during the sanding process and can also drive the cardboard to move left and right to contact the sanding assembly.
[0026] The grinding assembly includes a first servo motor 6, the output end of which is fixedly connected to an adjusting screw 7. The rear end of the adjusting screw 7 is rotatably connected to the inner rear wall of the worktable 1. A movable table 8 is slidably connected to the inner bottom wall of the worktable 1. A threaded hole is provided on the front of the movable table 8. The movable table 8 is threadedly connected to the adjusting screw 7 through the threaded hole. After the first servo motor 6 is started, it can drive the movable table 8 to move back and forth on the inner bottom wall of the worktable 1 through the adjusting screw 7.
[0027] A dual-axis motor 9 is fixedly connected to the upper surface of the activity table 8. A connecting shaft 10 is fixedly connected to each of the two output ends of the dual-axis motor 9. A grinding disc 11 is fixedly connected to the end of each connecting shaft 10 away from the dual-axis motor 9. The two grinding discs 11 are positioned corresponding to the slide groove. The dual-axis motor 9 can drive the two grinding discs 11 to rotate through the two connecting shafts 10, thereby enabling the grinding operation on the left and right sides of the cardboard.
[0028] The clamping assembly includes a cylinder 12. The output end of the cylinder 12 extends to the lower surface of the gantry 5 and is fixedly connected to a fixed frame 13. A second servo motor 14 is fixedly connected to the front of the fixed frame 13. A connecting rod 15 is fixedly connected to the output end of the second servo motor 14. The rear end of the connecting rod 15 extends into the interior of the fixed frame 13 and is rotatably connected to the inner rear wall of the fixed frame 13. A transmission gear 16 is fixedly connected to the surface of the connecting rod 15 inside the fixed frame 13. Strip plates 17 are fixedly connected to both the left and right sides of the fixed frame 13. Limit grooves are formed on the lower surface of the strip plates 17, and positioning devices are fixedly connected to the inner walls of the limit grooves. The rod 18 has a limiting block 19 slidably connected to the inner wall of the limiting groove. The limiting block 19 has a circular hole on its side. The limiting block 19 is slidably connected to the surface of the positioning rod 18 through the circular hole. The lower surfaces of the two limiting blocks 19 are fixedly connected to support rods 20. The bottom end of the support rod 20 is fixedly connected to a right-angle connecting frame 21. The opposite surfaces of the two right-angle connecting frames 21 are fixedly connected to pressure plates 22. The position of the pressure plate 22 corresponds to the position of the bottom plate 2. The upper surface of the pressure plate 22 is fixedly connected to a rack plate 23. The position of the rack plate 23 corresponds to the position of the fixing frame 13, and the rack plate 23 meshes with the transmission gear 16.
[0029] The cylinder 12 can drive the fixed frame 13 to descend, and the fixed frame 13 can drive the pressure plate 22 to press the upper surface of the cardboard. When it is necessary to move the cardboard left or right, the first servo motor 6 is started. When the first servo motor 6 rotates clockwise, it can drive the pressure plate 22 to move to the right through the transmission gear 16 and the rack plate 23. Due to the limiting effect of the right angle connecting frame 21, the support rod 20 and the limiting block 19, the pressure plate 22 will not disengage. At the same time, the pressure plate 22 can drive the cardboard at the bottom to move to the right until it contacts the right grinding disc 11. Similarly, when the first servo motor 6 rotates counterclockwise, it can drive the cardboard to move to the left. It has high flexibility and does not require flipping the cardboard, which further improves the grinding efficiency of the cardboard.
[0030] Working principle: First, place the cardboard to be sanded on the base plate 2. The lower surface of the base plate 2 contacts the surfaces of each circular column 4. At this time, the cylinder 12 is opened, which drives the fixed frame 13 to descend, thereby driving the pressure plate 22 to press the cardboard tightly. At this time, the second servo motor 14 is started. The second servo motor 14 drives the transmission gear 16 to rotate clockwise through the connecting rod 15. At this time, the transmission gear 16 drives the rack plate 23 to move to the right. The cardboard squeezed by the pressure plate 22 can also move to the right through the transmission of each circular column 4 at the bottom until the right side of the cardboard contacts the surface of the sanding disc 11. Then, the first servo motor 6 and the dual-axis motor 9 are opened. After the first servo motor 6 is started, it can drive the movable table 8 to move back and forth through the adjusting screw 7, thereby driving the two sanding discs 11 to move back and forth in the slide. After the dual-axis motor 9 is started, it drives the two sanding discs 11 to rotate through the two connecting shafts 10, thereby enabling the burr sanding operation on the side of the cardboard. There is no need for the staff to manually support the cardboard, which improves the sanding efficiency of the cardboard.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A biodegradable cardboard sanding device, comprising a workbench (1), characterized in that, The bottom wall of the workbench (1) is fixedly connected to a base plate (2). The upper surface of the base plate (2) is provided with several strip grooves. The inner wall of the strip grooves is rotatably connected to a rotating shaft (3). The surface of the rotating shaft (3) is fixedly connected to a circular column (4). The bottom wall of the workbench (1) is provided with two sliding grooves. The front of the workbench (1) is fixedly connected to a grinding assembly. The left and right sides of the workbench (1) are fixedly connected to a gantry frame (5). The upper surface of the gantry frame (5) is fixedly connected to a clamping assembly. The sanding assembly is used to sand the left and right sides of the cardboard, and the clamping assembly is used to improve the stability of the cardboard during the sanding process and can also drive the cardboard to move left and right so as to contact the sanding assembly.
2. The biodegradable cardboard sanding equipment according to claim 1, characterized in that, The grinding assembly includes a first servo motor (6), the output end of which is fixedly connected to an adjusting screw (7), the rear end of which is rotatably connected to the inner rear wall of the worktable (1), and a movable table (8) is slidably connected to the inner bottom wall of the worktable (1). The movable table (8) has a threaded hole on its front side, and the movable table (8) is threadedly connected to the adjusting screw (7) through the threaded hole.
3. The biodegradable cardboard sanding equipment according to claim 2, characterized in that, A dual-axis motor (9) is fixedly connected to the upper surface of the movable platform (8). A connecting shaft (10) is fixedly connected to each of the two output ends of the dual-axis motor (9). A grinding disc (11) is fixedly connected to the end of each connecting shaft (10) away from the dual-axis motor (9). The two grinding discs (11) correspond to the positions of the slide groove.
4. The biodegradable cardboard sanding equipment according to claim 1, characterized in that, The clamping assembly includes a cylinder (12), the output end of which extends to the lower surface of the gantry (5) and is fixedly connected to a fixed frame (13). A second servo motor (14) is fixedly connected to the front of the fixed frame (13), and a connecting rod (15) is fixedly connected to the output end of the second servo motor (14). The rear end of the connecting rod (15) extends into the interior of the fixed frame (13) and is rotatably connected to the inner rear wall of the fixed frame (13).
5. The biodegradable cardboard sanding equipment according to claim 4, characterized in that, The connecting rod (15) is fixedly connected to a transmission gear (16) on the surface inside the fixed frame (13). The left and right sides of the fixed frame (13) are fixedly connected to strip plates (17). A limiting groove is opened on the lower surface of the strip plate (17). A positioning rod (18) is fixedly connected to the inner wall of the limiting groove. A limiting block (19) is slidably connected to the inner wall of the limiting groove. A circular hole is opened on the side of the limiting block (19). The limiting block (19) is slidably connected to the surface of the positioning rod (18) through the circular hole.
6. The biodegradable cardboard sanding equipment according to claim 5, characterized in that, Support rods (20) are fixedly connected to the lower surfaces of the two limiting blocks (19). Right-angle connecting brackets (21) are fixedly connected to the bottom ends of the support rods (20). Pressure plates (22) are fixedly connected to the opposite faces of the two right-angle connecting brackets (21). The position of the pressure plates (22) corresponds to the position of the base plate (2).
7. The biodegradable cardboard sanding equipment according to claim 6, characterized in that, A rack plate (23) is fixedly connected to the upper surface of the pressure plate (22). The position of the rack plate (23) corresponds to the position of the fixed frame (13), and the rack plate (23) meshes with the transmission gear (16).