A device for gluing paperboard of a nail-free corrugated carton
By incorporating a pressure plate and a bevel design in the glue application device for nail-free corrugated boxes, the problem of excessive thickness of the connecting piece is solved, thus achieving effective utilization of the internal space of the box.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING SHENGONG PACKAGING CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-14
Smart Images

Figure CN224490264U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a gluing device for corrugated cardboard, and more specifically, to a gluing device for a nail-free corrugated cardboard box. Background Technology
[0002] Five-layer corrugated cardboard boxes are widely used as outer packaging boxes for product logistics and transportation due to their thickness and good impact resistance. Five-layer corrugated cardboard boxes can be roughly divided into two types: nail-free glued cardboard boxes and nailed cardboard boxes.
[0003] Current nail-free glued cardboard boxes involve directly applying glue to the connecting piece on one side of the cardboard. After the cardboard is folded into a square, the glued connecting piece is glued to the inner wall of the cardboard away from the connecting piece. As a result, the glued connecting piece is located on the inner wall of the cardboard, meaning it protrudes into the inside of the cardboard. However, due to the relatively thick thickness of the five-layer corrugated cardboard, the connecting piece protrudes significantly, thus affecting the internal storage space of the cardboard box. Therefore, there is an urgent need to improve this method. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a cardboard gluing device for nail-free corrugated boxes. By setting a pressure plate, the connecting piece can be squeezed by the pressure plate before gluing, reducing its thickness. Thus, after gluing and gluing into a box, the thickness of the inner protrusion of the connecting piece can be reduced.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cardboard gluing device for nail-free corrugated boxes, comprising a workbench, the workbench comprising a positioning area, an operation area and a gluing area, the positioning area being higher than the operation area, the positioning area and the operation area being connected by the gluing area, the gluing area being an inclined surface sloping downward from the positioning area toward the operation area;
[0006] A pressure plate is provided above the workbench. The pressure plate can move up and down to abut or detach from the glue application area. The pressure plate is located above the glue application area and the lower surface of the pressure plate is consistent with the inclined surface of the glue application area so that the lower surface of the pressure plate can fit against the surface of the glue application area.
[0007] Furthermore, a support frame is provided on the upper part of the workbench, and a cylinder is fixed on the upper part of the support frame. The telescopic rod of the cylinder is connected to the pressure plate, and a guide rod is fixed on the upper part of the pressure plate, which passes through the upper part of the support frame.
[0008] Furthermore, a positioning plate and a support plate are respectively provided on both sides of the workbench, and a movable plate is provided on the inner side of the support plate, which can move closer to or away from the positioning plate.
[0009] Furthermore, a screw is fixed to the side of the movable plate facing the support plate. The screw passes through the support plate, and two nuts are threaded onto the outside of the screw. The two nuts abut against the inner and outer sides of the support plate, respectively.
[0010] Furthermore, a positioning block is provided at one end of the positioning plate near the operating area. The positioning block and the positioning plate form an L-shaped structure, and the side of the positioning block away from the operating area coincides with the side of the gluing area located in the positioning area.
[0011] Furthermore, a strip-shaped hole is provided at the junction of the operating area and the gluing area. The strip-shaped hole is connected to the lower part of the workbench. A material collection box is provided at the lower part of the workbench. The material collection box is located below the strip-shaped hole and its size is larger than the strip-shaped hole. The material collection box is connected to the lower surface of the workbench through a bracket.
[0012] Furthermore, the operating area includes a through hole and a guide groove, the guide groove being located between the strip hole and the through hole, and the bottom of the guide groove being inclined downward from the through hole toward the strip hole.
[0013] Furthermore, a shelf is provided on the upper part of the operating area.
[0014] Furthermore, the support frame located above the positioning plate has a bending area that bends from the operating area toward the positioning area.
[0015] In summary, this utility model has the following beneficial effects:
[0016] Before the glue is applied, the connecting piece is squeezed by a cylinder moving the pressure plate up and down, thus reducing its thickness. This reduces the thickness of the inner bulge of the connecting piece after it is glued into a carton, thereby increasing the internal space of the carton. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of this embodiment from a first-view perspective;
[0018] Figure 2 This is a structural schematic diagram of this embodiment from a second perspective;
[0019] Figure 3 This is a diagram showing the unfolded shape of the cardboard box.
[0020] Figure 4 This is a comparison image of the cardboard box's main connecting piece before and after pressing.
[0021] Reference numerals: 1. Workbench; 11. Positioning area; 12. Operating area; 121. Through hole; 122. Frame; 13. Glue application area; 14. Strip hole; 15. Glue guide groove; 16. Positioning plate; 17. Positioning block; 18. Support plate; 19. Support frame; 191. Bending area; 2. Movable plate; 21. Screw; 3. Nut; 4. Glue bucket; 41. Circular platform; 5. Pressure plate; 51. Guide rod; 6. Cylinder; 7. Collection box; 8. Bracket; 9. Carton body; 91. Connecting piece; 92. Crease line. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1 to 4 As shown, this embodiment discloses a cardboard gluing device for nail-free corrugated boxes, including a workbench 1. The workbench 1 includes a positioning area 11, an operating area 12, and a gluing area 13. The positioning area 11 is positioned higher than the operating area 12. The positioning area 11 and the operating area 12 are connected by the gluing area 13. The gluing area 13 is an inclined surface that slopes downward from the positioning area 11 toward the operating area 12. A strip hole 14 is provided at the junction of the operating area 12 and the gluing area 13. The strip hole 14 is connected to the lower part of the workbench 1. The operating area 12 includes a through hole 121 and a frame 122. A glue bucket 4 is installed in the through hole 121. The glue bucket 4 contains glue, which is a water-based glue. The glue bucket 4 includes an annular platform 41. The annular platform 41 abuts against the upper part of the operating area 12, thereby limiting the position of the glue bucket 4. The frame 122 can hold a brush.
[0024] like Figure 1 As shown, when applying glue, the main body 9 of the carton is placed on the positioning area 11. The part that extends beyond the right side of the positioning area 11 can fall down. The connecting piece 91 is located above the gluing area 13. The indentation line 92 connected to the connecting piece 91 is aligned with the junction of the gluing area 13 and the positioning area 11. The worker can put the brush into the glue bucket 4 and use the brush with glue to roll and brush the surface of the connecting piece 91 to apply glue to the connecting piece 91. Excess glue can enter the strip hole 14 along the slope of the gluing area 13.
[0025] like Figure 2As shown, a collection box 7 is provided at the lower part of the workbench 1. The collection box 7 is located below the strip hole 14 and is larger than the strip hole 14. The collection box 7 is connected to the lower surface of the workbench 1 through a bracket 8. The collection box 7 can be pulled out horizontally. By setting the collection box 7, the glue falling from the strip hole 14 can be collected.
[0026] The surface of the operating area 12 is provided with a glue guide groove 15, which is located between the strip hole 14 and the through hole 121. The bottom of the glue guide groove 15 is inclined downward from the through hole 121 toward the strip hole 14. When the brush moves from the glue bucket 4 to the glue application area 13, glue will drip down. The dripping glue can flow through the glue guide groove 15 to the strip hole 14.
[0027] A pressure plate 5 is provided above the workbench 1. The pressure plate 5 can move up and down to abut or disengage from the glue application area 13. The pressure plate 5 is located above the glue application area 13 and the lower surface of the pressure plate 5 is consistent with the inclined surface of the glue application area 13 so that the lower surface of the pressure plate 5 can fit against the surface of the glue application area 13. Specifically, a support frame 19 is provided on the upper part of the workbench 1. A cylinder 6 is fixed on the upper part of the support frame 19. The telescopic rod of the cylinder 6 is connected to the pressure plate 5. A guide rod 51 is fixed on the upper part of the pressure plate 5. The guide rod 51 passes through the upper part of the support frame 19.
[0028] Before the glue is applied, the connecting piece 91 is squeezed by the cylinder 6, which drives the pressure plate 5 to move up and down. This reduces the thickness of the connecting piece 91 and makes it thinner. After the glue is applied and the carton is made, the thickness of the inner protrusion of the connecting piece 91 can be reduced, thus increasing the internal space of the carton.
[0029] The workbench 1 is provided with a positioning plate 16 and a support plate 18 on both sides. The support plate 18 is provided with a movable plate 2 on its inner side. The movable plate 2 can move closer to or away from the positioning plate 16. Specifically, a screw 21 is fixed on the side of the movable plate 2 facing the support plate 18. The screw 21 passes through the support plate 18. Two nuts 3 are threaded to the outside of the screw 21. The two nuts 3 abut against the inner and outer sides of the support plate 18, respectively. The positioning plate 16 is provided with a positioning block 17 at one end near the operation area 12. The positioning block 17 and the positioning plate 16 form an L-shaped structure. One corner of the carton body 9 is located in the L-shaped area. The side of the positioning block 17 away from the operation area 12 coincides with the side of the gluing area 13 located in the positioning area 11.
[0030] When the position of the movable plate 2 needs to be adjusted, simply loosen the two nuts 3 at the screw 21, and tighten the two nuts 3 again after adjustment. Through the above design, not only can the carton body 9 be positioned, but it can also facilitate the gluing operation of carton bodies 9 of different heights.
[0031] The support frame 19 is located above the positioning plate 16 and has a bending area 191 that bends from the operation area 12 toward the positioning area 11. By setting the bending area 191, the area located in the gluing area 13 can be fully exposed, which facilitates the gluing operation.
[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A cardboard gluing device for nail-free corrugated boxes, characterized in that, Includes a workbench (1), the workbench (1) includes a positioning area (11), an operation area (12) and a gluing area (13), the positioning area (11) is higher than the operation area (12), the positioning area (11) and the operation area (12) are connected by the gluing area (13), the gluing area (13) is an inclined surface that slopes downward from the positioning area (11) toward the operation area (12); The workbench (1) is provided with a pressure plate (5) above it. The pressure plate (5) can move up and down to abut or detach from the glue application area (13). The pressure plate (5) is located above the glue application area (13) and the lower surface of the pressure plate (5) is consistent with the inclined surface of the glue application area (13) so that the lower surface of the pressure plate (5) can fit with the surface of the glue application area (13).
2. The cardboard gluing device for a nail-free corrugated box according to claim 1, characterized in that, The workbench (1) is provided with a support frame (19) on the upper part. A cylinder (6) is fixed on the upper part of the support frame (19). The telescopic rod of the cylinder (6) is connected to the pressure plate (5). A guide rod (51) is fixed on the upper part of the pressure plate (5). The guide rod (51) passes through the upper part of the support frame (19).
3. The cardboard gluing device for a nail-free corrugated box according to claim 2, characterized in that, The workbench (1) is provided with a positioning plate (16) and a support plate (18) on both sides respectively. The support plate (18) is provided with a movable plate (2) on its inner side. The movable plate (2) can move closer to or away from the positioning plate (16).
4. The cardboard gluing device for a nail-free corrugated carton according to claim 3, characterized in that, The movable plate (2) is fixed with a screw (21) on the side facing the support plate (18). The screw (21) passes through the support plate (18). The screw (21) is externally threaded with two nuts (3). The two nuts (3) abut against the inner and outer sides of the support plate (18) respectively.
5. The cardboard gluing device for a nail-free corrugated box according to claim 3, characterized in that, The positioning plate (16) has a positioning block (17) at one end near the operation area (12). The positioning block (17) and the positioning plate (16) form an L-shaped structure. The side of the positioning block (17) away from the operation area (12) coincides with the side of the glue application area (13) located in the positioning area (11).
6. The cardboard gluing device for a nail-free corrugated box according to claim 1, characterized in that, A strip hole (14) is provided at the junction of the operation area (12) and the glue application area (13). The strip hole (14) is connected to the lower part of the workbench (1). A collection box (7) is provided at the lower part of the workbench (1). The collection box (7) is located below the strip hole (14) and is larger than the strip hole (14). The collection box (7) is connected to the lower surface of the workbench (1) through a bracket (8).
7. The cardboard gluing device for a nail-free corrugated box according to claim 6, characterized in that, The operating area (12) includes a through hole (121) and a guide groove (15). The guide groove (15) is located between the strip hole (14) and the through hole (121). The bottom of the guide groove (15) is inclined downward from the through hole (121) toward the strip hole (14).
8. The cardboard gluing device for a nail-free corrugated carton according to claim 7, characterized in that, The operating area (12) is equipped with a shelf (122) on its upper part.
9. The cardboard gluing device for a nail-free corrugated box according to claim 3, characterized in that, The support frame (19) is located above the positioning plate (16) and is a bend (191) that bends from the operating area (12) toward the positioning area (11).