Edge folding device for corrugated carton production
By designing an adjustment box and a buffer mechanism for the folding device, the adaptability problem of producing corrugated boxes of various specifications was solved, achieving efficient production and long-term operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG RONGSEN PACKAGING TECH CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-28
AI Technical Summary
Existing folding devices are difficult to adapt to the production of corrugated boxes of various sizes, and the boxes are easily damaged during the folding process, resulting in misalignment or deformation.
A folding device comprising an adjustment box, a buffer mechanism, and an adjustment mechanism was designed. The folding length is adjusted by a gear and rack structure, and the pressure is distributed by the buffer mechanism to prevent damage to the carton.
It enables rapid matching of production needs for corrugated boxes of different sizes, reduces equipment changeover time, improves production efficiency, ensures folding quality, reduces equipment wear rate, and extends service life.
Smart Images
Figure CN224170587U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of packaging material processing technology, and specifically relates to a folding device for corrugated cardboard box production. Background Technology
[0002] Corrugated cardboard is die-cut, creasing, and stapling or gluing to make corrugated boxes. Corrugated boxes are one of the most widely used packaging products, consistently ranking first in usage among all packaging products, including calcium-plastic corrugated boxes. For more than half a century, corrugated boxes have gradually replaced wooden boxes and other transport packaging containers due to their superior performance and good processing properties, becoming the mainstay of transport packaging. In addition to protecting goods and facilitating warehousing and transportation, they also beautify and promote products. Corrugated boxes are environmentally friendly products, benefiting both environmental protection and loading / unloading. However, general folding devices can only be used for a relatively fixed range of corrugated box specifications. Multiple sizes of corrugated boxes may require multiple folding devices of different specifications. Furthermore, excessive folding force during the folding process may damage the corrugated box, posing a risk of misalignment and deformation. To address the problems mentioned above, we propose a folding device for corrugated box production. Utility Model Content
[0003] The purpose of this utility model is to provide a folding device for corrugated cardboard box production, which has the advantages of adjustable specifications and cushioning protection.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a folding device for corrugated cardboard box production, comprising an adjusting box, a gear rotatably connected to the center of the bottom of the adjusting box, racks A and B meshing on the front and back of the gear, sliding sleeves A and B bolted to the bottom of racks A and B, movable rods A and B bolted to the back of sliding sleeve A and the front of sliding sleeve B, slots being provided on the left side of the center of the top and bottom of the adjusting box, with the bottom of the slot penetrating through the middle of the surface of movable rod A, pressure blocks bolted to the bottom of movable rods A and B, an adjusting mechanism being provided at the center of the top of the adjusting box, and a buffer mechanism being provided at the bottom of the adjusting box.
[0005] The above technical solution involves the following steps: the movement of movable rod A drives the movement of sliding sleeve A, which in turn drives the movement of rack A. The movement of rack A drives the rotation of gear B, which in turn drives the movement of rack B. Rack B then drives the movement of sliding sleeve B, which in turn drives the movement of movable rod B. The movement of movable rods A and B causes the pressure block to move left and right. By adjusting the folding length, the production needs of corrugated boxes of different sizes can be quickly matched, reducing equipment changeover time, improving production line flexibility, adapting to boxes of different sizes, improving production efficiency, ensuring folding quality, and reducing material waste.
[0006] The present invention is further configured such that the buffer mechanism includes a limiting rod, the limiting rod is bolted to the edges of the four corners of the top of the adjusting box, a spring is sleeved on the bottom of the surface of the limiting rod, a lifting plate is slidably connected to the middle of the surface of the limiting rod, a hydraulic cylinder is bolted to the middle of the top of the lifting plate, a support plate is bolted to the top of the hydraulic cylinder, a base is bolted to the rear end of the bottom of the support plate, and a specification mechanism is provided at the front end of the top of the base.
[0007] The above technical solution employs a buffer mechanism. A hydraulic cylinder extends and retracts downwards, causing a lifting plate to move downwards. The lifting plate moves an adjusting box, which in turn moves a pressure block downwards. The pressure block presses down on the corrugated cardboard box and continues to press down onto the base, effectively pressing the edges of the corrugated cardboard box. When the pressure block reaches the base, the lifting plate applies spring pressure downwards. The spring contracts, absorbing excess pressure from the lifting plate. During the folding process, the buffer mechanism prevents damage to the internal structure of the corrugated cardboard due to excessive pressure. By dispersing pressure through the buffer components, it ensures uniform and undamaged folds at the edges of the cardboard box, maintaining its load-bearing capacity and compression resistance. The pressing buffer controls the applied pressure, allowing the cardboard to gradually solidify during the pre-folding stage, reducing the risk of misalignment or deformation during folding. The buffer mechanism also reduces the rigid impact on mechanical parts during high-speed continuous operation, lowering equipment wear and extending the service life of key components.
[0008] The present invention is further configured such that the adjusting mechanism includes a cylinder, the cylinder is embedded in the center of the top of the adjusting box, and the left side of the cylinder is bolted to the top right side of the movable rod A. The four corner edges of the bottom of the adjusting box are bolted with brackets, two slide rods A are bolted to the opposite sides of the brackets at the front end, and two slide rods B are bolted to the opposite sides of the brackets at the rear end. The surfaces of slide rods A and B are slidably connected to the interior of slide sleeves A and B.
[0009] The above technical solution is adopted as follows: by setting an adjustment mechanism, the cylinder drives the movable rod A to move, which can limit the movement of the movable rod A, and the sliding rods A and B limit the movement of the sliding sleeves A and B.
[0010] The present invention is further configured such that a sliding groove A and a sliding groove B are provided on the right side of the bottom front end and the left side of the front end of the adjustment box, and a slider A and a slider B are bolted to the top of the rack A and rack B, and the surfaces of the slider A and slider B are slidably connected to the interior of the sliding groove A and the sliding groove B.
[0011] By adopting the above technical solution, the movement of rack A and rack B can be limited by setting slide groove A, slide groove B, slider A and slider B.
[0012] The present invention is further configured such that the specification mechanism includes a slide groove C, the slide groove C is located on both sides of the top front end of the base, a slider C is slidably connected inside the slide groove C, and an adjustment plate is bolted to the top of the slider C.
[0013] The above technical solution is adopted: by setting a specification mechanism, the adjusting plate moves along the slider C and the limit of slider C.
[0014] The present invention is further configured such that a limiting ring is fixedly sleeved on the top of the surface of the limiting rod.
[0015] The above technical solution, by setting a limit ring, can prevent the lifting plate from falling off.
[0016] The present invention is further configured such that limit screws are bolted to opposite sides of the two adjustment plates.
[0017] The above technical solution uses limit screws to fix the adjustment plate.
[0018] The present invention is further provided that the front of the base is provided with a scale.
[0019] The above technical solution allows for easy viewing of the required edge length by setting a scale.
[0020] In summary, this utility model has the following beneficial effects:
[0021] 1. This utility model can quickly match the production needs of corrugated boxes of different sizes by adjusting the folding length, reduce equipment changeover time, improve production line flexibility, adapt to boxes of different sizes, improve production efficiency, ensure folding quality, and reduce material waste;
[0022] 2. This utility model, through the buffer mechanism during the folding process, can prevent damage to the internal structure of corrugated cardboard due to excessive pressure. By dispersing pressure through the buffer component, it ensures that the folds on the edges of the carton are uniform and undamaged, maintaining the load-bearing capacity and compression resistance of the carton. The pressing buffer can control the applied pressure, allowing the cardboard to gradually take shape during the pre-pressing folding stage, reducing the risk of misalignment or deformation during the folding process. The buffer mechanism can reduce the rigid impact of mechanical parts during high-speed continuous operation, reduce equipment wear rate, and extend the service life of key components. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a front structural sectional view of the present invention;
[0025] Figure 3 This is a side structural sectional view of the present invention;
[0026] Figure 4 This is a partial bottom sectional view of the structure of this utility model;
[0027] Figure 5 This is a partial structural front sectional view of this utility model.
[0028] Reference numerals in the attached diagram: 1. Adjusting box; 2. Gear; 3. Rack A; 4. Rack B; 5. Sliding sleeve A; 6. Sliding sleeve B; 7. Movable rod A; 8. Movable rod B; 9. Slot; 10. Pressure block; 11. Limiting rod; 12. Spring; 13. Lifting plate; 14. Hydraulic cylinder; 15. Support plate; 16. Base; 17. Cylinder; 18. Bracket; 19. Sliding rod A; 20. Sliding rod B; 21. Slide groove A; 22. Slide groove B; 23. Slider A; 24. Slider B; 25. Slider C; 26. Slide groove C; 27. Adjusting plate; 28. Limiting ring; 29. Limiting screw; 30. Scale. Detailed Implementation
[0029] The present invention will be further described in detail below with reference to the accompanying drawings.
[0030] Example 1:
[0031] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A folding device for corrugated cardboard box production includes an adjusting box 1. A gear 2 is rotatably connected to the center of the bottom of the adjusting box 1. A rack A3 and a rack B4 mesh with the front and back of the gear 2. Sliding sleeves A5 and B6 are bolted to the bottom of racks A3 and B4. Movable rods A7 and B8 are bolted to the back of sliding sleeve A5 and the front of sliding sleeve B6. A slot 9 is provided on the left side of the center of the top and bottom of the adjusting box 1, and the middle of the surface of the movable rod A7 passes through the bottom of the slot 9. The bottom of the movable rods A7 and B8 are bolted to... There is a pressure block 10. An adjustment mechanism is set at the center of the top of the adjustment box 1. A buffer mechanism is set at the bottom of the adjustment box 1. The movement of the movable rod A7 drives the sliding sleeve A5 to move. The movement of the sliding sleeve A5 drives the rack A3 to move. The movement of the rack A3 drives the gear 2 to rotate. The rotation of the gear 2 drives the rack B4 to move. The rack B4 drives the sliding sleeve B6 to move. The sliding sleeve B6 drives the movable rod B8 to move. The movement of the movable rod A7 and the movable rod B8 drives the pressure block 10 to move left and right. By adjusting the folding length, it can quickly match the production needs of corrugated boxes of different sizes.
[0032] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The adjustment mechanism includes a cylinder 17, which is embedded in the center of the top of the adjustment box 1. The left side of the cylinder 17 is bolted to the top right side of the movable rod A7. The four corners of the bottom of the adjustment box 1 are bolted with brackets 18. Two slide rods A19 are bolted to the opposite sides of the front brackets 18, and two slide rods B20 are bolted to the opposite sides of the rear brackets 18. The surfaces of slide rods A19 and B20 are slidably connected to the interior of slide sleeves A5 and B6. By setting the adjustment mechanism, the cylinder 17 drives the movable rod A7 to move, which can limit the movement of the movable rod A7. The slide rods A19 and B20 limit the movement of slide sleeves A5 and B6.
[0033] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 The bottom front end of the adjustment box 1 has a sliding groove A21 and a sliding groove B22 on the right side and the front left side. The top of the rack A3 and rack B4 are bolted with sliders A23 and B24, and the surfaces of sliders A23 and B24 are slidably connected to the inside of the sliding grooves A21 and B22. By setting the sliding grooves A21, B22, sliders A23 and B24, the movement of racks A3 and B4 can be limited.
[0034] refer to Figure 1 , Figure 2 , Figure 3 The specification mechanism includes a slide groove C26, which is located on both sides of the top front end of the base 16. A slider C25 is slidably connected inside the slide groove C26. An adjusting plate 27 is bolted to the top of the slider C25. By setting the specification mechanism, the adjusting plate 27 moves along the slider C25 and the limit of the slider C25.
[0035] refer to Figure 1 , Figure 2 , Figure 3 The two adjusting plates 27 are bolted to opposite sides with limit screws 29, which can fix the adjusting plates 27.
[0036] refer to Figure 1 The base 16 has a scale 30 on the front, which makes it easy to see the length of the edge to be pressed.
[0037] Brief description of usage: When adjusting the edge pressing length of corrugated cardboard boxes of different specifications, adjust according to the 30 mark. This causes cylinder 17 to move movable rod A7, which can limit the movement of movable rod A7. The movement of movable rod A7 moves sliding sleeve A5, which in turn moves rack A3. The movement of rack A3 drives gear 2 to rotate, which in turn moves rack B4. Slide grooves A21, B22, sliders A23 and B24 limit the movement of rack A3 and rack B4. Rack B4 moves sliding sleeve B6, which in turn moves movable rod B8. A19 and slide bar B20 limit the movement of slide sleeves A5 and B6. The movement of movable rods A7 and B8 causes the pressure block 10 to move left and right. Then, the position of the adjusting plate 27 is adjusted according to the distance of the pressure block 10. The adjusting plate 27 moves along the slider C25 and the limit of slider C25. After adjustment, the upper limit screw 29 is tightened to fix the adjusting plate 27. By adjusting the folding length, the production needs of corrugated boxes of different sizes can be quickly matched, reducing equipment changeover time, improving production line flexibility, adapting to boxes of different sizes, improving production efficiency, ensuring folding quality, and reducing material waste.
[0038] Example 2:
[0039] refer to Figure 1 , Figure 2 , Figure 3 A folding device for corrugated cardboard box production includes a buffer mechanism comprising a limiting rod 11, which is bolted to the edges of the four corners of the top of an adjusting box 1. A spring 12 is sleeved on the bottom of the surface of the limiting rod 11. A lifting plate 13 is slidably connected to the middle of the surface of the limiting rod 11. A hydraulic cylinder 14 is bolted to the middle of the top of the lifting plate 13. A support plate 15 is bolted to the top of the hydraulic cylinder 14. A base 16 is bolted to the rear end of the bottom of the support plate 15. A specification mechanism is provided at the front end of the top of the base 16. The hydraulic cylinder 14... The downward extension and retraction cause the lifting plate 13 to move downward, which in turn causes the adjusting box 1 to move. The adjusting box 1 then causes the pressure block 10 to press downward. The pressure block 10 presses down onto the corrugated cardboard box and continues to press down onto the base 16, which can press the edges of the corrugated cardboard box. When the pressure block 10 presses down onto the base 16, the lifting plate 13 applies downward pressure to the spring 12. The spring 12 contracts, absorbing the excess pressure from the lifting plate 13. During the folding process, the buffer mechanism can prevent damage to the internal structure of the corrugated cardboard due to excessive pressure by dispersing the pressure through the buffer component.
[0040] refer to Figure 1 , Figure 2 , Figure 3 A limit ring 28 is fixedly sleeved on the top of the surface of the limit rod 11. By setting the limit ring 28, the lifting plate 13 can be prevented from falling off.
[0041] Brief description of the operation: The hydraulic cylinder 14 extends downward, causing the lifting plate 13 to move downward. The lifting plate 13 moves the adjusting box 1, which in turn moves the pressure block 10 downward. The pressure block 10 presses down on the corrugated cardboard box and continues to press down on the base 16, which can press the edges of the corrugated cardboard box. When the pressure block 10 presses down on the base 16, the lifting plate 13 applies pressure to the spring 12. The spring 12 contracts, absorbing the excess pressure from the lifting plate 13. When the folding is finished, the hydraulic cylinder 14 contracts, causing the device to return to its original position, and the spring rebounds. During the folding process, the buffer mechanism can prevent damage to the internal structure of the corrugated cardboard due to excessive pressure. By dispersing the pressure through the buffer component, it ensures that the folds on the edges of the cardboard box are uniform and undamaged, maintaining the load-bearing capacity and compression resistance of the cardboard box. The pressing buffer can control the pressure intensity, allowing the cardboard to gradually take shape during the pre-pressing folding stage, reducing the risk of misalignment or deformation during the folding process. The buffer mechanism can reduce the rigid impact of mechanical parts during high-speed continuous operation, reduce the wear rate of equipment, and extend the service life of key components.
[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A folding device for corrugated cardboard box production, comprising an adjusting box (1), characterized in that: The center of the bottom of the adjustment box (1) is rotatably connected to a gear (2). The front and back of the gear (2) are meshed with rack A (3) and rack B (4). The bottom of rack A (3) and rack B (4) are bolted with sliding sleeve A (5) and sliding sleeve B (6). The back of sliding sleeve A (5) and the front of sliding sleeve B (6) are bolted with movable rod A (7) and movable rod B (8). The left side of the center of the top and bottom of the adjustment box (1) is provided with a slot (9), and the middle of the surface of movable rod A (7) passes through the bottom of the slot (9). The bottom of movable rod A (7) and movable rod B (8) are bolted with a pressure block (10). The center of the top of the adjustment box (1) is provided with an adjustment mechanism, and the bottom of the adjustment box (1) is provided with a buffer mechanism.
2. The folding device for corrugated cardboard box production according to claim 1, characterized in that: The buffer mechanism includes a limiting rod (11), which is bolted to the edges of the four corners of the top of the adjusting box (1). A spring (12) is sleeved on the bottom of the surface of the limiting rod (11). A lifting plate (13) is slidably connected to the middle of the surface of the limiting rod (11). A hydraulic cylinder (14) is bolted to the middle of the top of the lifting plate (13). A support plate (15) is bolted to the top of the hydraulic cylinder (14). A base (16) is bolted to the rear end of the bottom of the support plate (15). A specification mechanism is provided at the front end of the top of the base (16).
3. A folding device for corrugated cardboard box production according to claim 1, characterized in that: The adjustment mechanism includes a cylinder (17), which is embedded in the center of the top of the adjustment box (1). The left side of the cylinder (17) is bolted to the top right side of the movable rod A (7). The four corners of the bottom of the adjustment box (1) are bolted with brackets (18). Two opposing sides of the brackets (18) at the front end are bolted with sliding rods A (19), and two opposing sides of the brackets (18) at the rear end are bolted with sliding rods B (20). The surfaces of sliding rods A (19) and B (20) are slidably connected to the interior of sliding sleeves A (5) and B (6).
4. A folding device for corrugated cardboard box production according to claim 1, characterized in that: The adjustment box (1) has a sliding groove A (21) and a sliding groove B (22) on the right side of the bottom front end and the left side of the front end. The top of the rack A (3) and rack B (4) are bolted with slider A (23) and slider B (24), and the surfaces of slider A (23) and slider B (24) are slidably connected to the inside of the sliding groove A (21) and sliding groove B (22).
5. A folding device for corrugated cardboard box production according to claim 2, characterized in that: The specification mechanism includes a slide groove C (26), which is located on both sides of the top front end of the base (16). A slider C (25) is slidably connected inside the slide groove C (26), and an adjustment plate (27) is bolted to the top of the slider C (25).
6. A folding device for corrugated cardboard box production according to claim 2, characterized in that: A limiting ring (28) is fixedly sleeved on the top of the surface of the limiting rod (11).
7. A folding device for corrugated cardboard box production according to claim 5, characterized in that: Limit screws (29) are bolted to opposite sides of the two adjustment plates (27).
8. A folding device for corrugated cardboard box production according to claim 2, characterized in that: The base (16) has a scale (30) on its front side.