Edge folding and bonding equipment for board packaging paper

Abstract

The utility model relates to plate packaging paper edge folding and bonding equipment, and belongs to the technical field of plate packaging equipment. The plate packaging paper edge folding and bonding equipment comprises a workbench, an upper edge folding mechanism, a lower edge folding mechanism and a gluing mechanism; the workbench is used for bearing lower paper and to-be-packaged plates stacked on the lower paper. The upper edge folding mechanism is arranged above the workbench and used for conducting edge folding operation on upper paper covering the upper surface of the to-be-packaged plate. The lower edge folding mechanism is arranged on the workbench and used for conducting edge folding operation on lower paper. The gluing mechanism is arranged on one side of the workbench and used for coating glue on the edge of the lower paper and / or the edge of the upper paper. According to the three-dimensional edge folding device, three-dimensional edge folding operation can be conducted on upper paper and lower paper, the gluing mechanism can select the glue coating position according to the edge folding and bonding requirements, the problem that due to the fact that traditional edge folding equipment needs to be operated step by step, procedure connection is not smooth is solved, and the edge folding efficiency of board packaging paper is improved.

Description

Technical Field

[0001] This application relates to the field of sheet packaging equipment, and in particular to a sheet packaging paper folding and bonding device. Background Technology

[0002] In traditional sheet packaging, the folding process for the top and bottom sheets relies on manual operation, which leads to problems such as uneven creases, uneven glue application, and low efficiency. In particular, the folding of the top and bottom sheets requires precise alignment, and manual operation easily results in deviations in the folding angle, affecting the packaging's sealing. Existing automated equipment mostly uses a single folding mechanism, which cannot simultaneously handle the three-dimensional folding needs of both the top and bottom sheets, thus folding efficiency needs improvement. Utility Model Content

[0003] In order to improve the folding efficiency of sheet packaging paper, this application provides a sheet packaging paper folding and bonding device.

[0004] This application provides a paperboard folding and bonding device, which adopts the following technical solution:

[0005] A sheet packaging paper folding and bonding device includes a worktable, an upper folding mechanism, a lower folding mechanism, and a gluing mechanism;

[0006] The workbench is used to support the paper feed and the stacked sheets to be packaged on the paper feed.

[0007] The upper folding mechanism is located above the workbench and is used to fold the paper covering the upper surface of the board to be packaged.

[0008] The lower folding mechanism is located on the workbench and is used to fold the paper.

[0009] The gluing mechanism is located on one side of the workbench and is used to apply glue to the lower edge of the paper and / or the upper edge of the paper.

[0010] By adopting the above technical solution, the workbench forms a stable supporting base, ensuring the overlapping and positioning accuracy of the paper and the board to be packaged. The upper and lower folding mechanisms perform three-dimensional folding operations on the upper and lower paper respectively. The gluing mechanism selects the glue application position according to the folding and bonding requirements, realizing the gluing and pressing of the folded parts of the upper and lower paper, forming a tightly wrapped top and bottom cover-type packaging structure. This solves the problem of poor process connection caused by the step-by-step operation of traditional equipment, improves the folding efficiency of the board packaging paper, and helps to improve the overall packaging efficiency of the board.

[0011] Optionally, both the upper and lower paper have pre-pressed marks at the edges to be folded, and the extension direction of the pre-pressed marks coincides with the bending axis during the corresponding folding operation.

[0012] By adopting the above technical solution, the spatial correspondence between the pre-indentation and the bending axis provides a physical guiding benchmark for the folding operation, so that the upper and lower paper bend naturally along the predetermined trajectory during the folding process, eliminating the angle deviation and crease misalignment during manual folding, while reducing the operating resistance of the upper and lower folding mechanisms, reducing the internal stress damage caused by excessive bending of the upper and lower paper, and improving the folding forming quality and paper utilization rate.

[0013] Optionally, the upper folding mechanism includes at least four sets of liftable pressure plate assemblies, each pressure plate assembly including a pressure plate body for pressing down the edge of the upper paper and a lifting drive for driving the pressure plate body to rise and fall.

[0014] By adopting the above technical solution, when performing the edge folding operation on the paper, the lifting drive unit drives the pressure plate body to descend. The pressure plate body presses down on the four sides of the paper. After the four sides of the paper are pressed, the edges of the paper will bend downward along the pre-press marks, thus achieving the purpose of folding the paper.

[0015] Optionally, the lower folding mechanism includes a flip-up plate assembly. The flip-up plate assembly includes a flip-up plate body rotatably mounted on the worktable and a flip-up drive for driving the flip-up plate body to flip. In the initial state, the upper surface of the flip-up plate body is flush with the top surface of the worktable. Driven by the flip-up drive, it can perform a 90° flip-up movement, so that the flip-up plate body is pressed against the outer edge of the folded lower paper.

[0016] By adopting the above technical solution, the flip plate body remains coplanar with the workbench when not in operation, ensuring no mechanical interference during the material conveying process. After flipping, it forms a force interface that is completely in contact with the outer side of the paper fold. The centripetal extrusion action enhances the tight bond between the fold and the adhesive layer. The flipping action is dynamically matched with the adhesive curing process, maintaining the stability of the fold shape until the bonding is completed.

[0017] Optionally, the gluing mechanism includes a paper-feeding positioning platform located on one side of the workbench and four sets of movable glue spray heads located on the paper-feeding positioning platform, each corresponding to one of the four edges of the paper. The movement trajectory of the glue spray heads is parallel to the corresponding pre-indentation marks.

[0018] By adopting the above technical solution, the paper is first positioned using the paper positioning table, and then four sets of glue spray heads move along the direction parallel to the pre-indentation to apply glue, ensuring the spatial matching of the glue line trajectory and the folded edge bonding area.

[0019] Optionally, the gluing mechanism further includes a pulse control valve and a displacement sensor. The pulse control valve is connected to the glue spray head pipeline, and the displacement sensor detects the movement position of the glue spray head and triggers the periodic opening and closing of the pulse control valve so that the glue spray head forms spaced glue sections at the edge of the paper.

[0020] By adopting the above technical solution, the displacement sensor monitors the movement position of the spray nozzle in real time and triggers the opening and closing action of the pulse control valve to form an intermittent adhesive segment coating pattern. This reduces the amount of adhesive consumed while reserving uncoated areas as abutment and avoidance space. The rapid response characteristics of the pulse control valve ensure the uniformity of the adhesive segment length and interval, avoiding fluctuations in adhesive strength caused by intermittent and uneven adhesive application.

[0021] Optionally, a blank section is formed between adjacent glue-coating sections, and the lower end of the pressure plate body is provided with alternating raised and recessed surfaces, with the raised surfaces corresponding to the blank sections and the recessed surfaces corresponding to the glue-coating sections.

[0022] By adopting the above technical solution, the raised and recessed surfaces on the bottom of the pressure plate body are arranged alternately, so that the raised surfaces can be precisely applied to the blank area for folding and shaping during the folding operation, and the recessed surfaces can avoid the glue application area to prevent glue from sticking to the surface of the pressure plate body. This maintains the cleanliness of the pressure plate body while ensuring that the glue layer at the folding part is intact and undamaged, reducing the frequency of equipment cleaning and maintenance.

[0023] Optionally, it also includes a paper feeding gripping unit for gripping the paper, the paper feeding gripping unit being connected between the paper feeding positioning table and the worktable.

[0024] By adopting the above technical solutions, the paper gripping unit achieves fully automated transfer of paper from feeding and positioning to workbench coverage, which helps to shorten process connection time and improve overall packaging efficiency.

[0025] Optionally, the paper gripping unit includes a truss and a suction cup frame. The truss spans above the paper positioning table and the worktable. The suction cup frame is slidable along the length of the truss and can be raised and lowered vertically on the truss. The upper folding mechanism is located on the suction cup frame. The suction cup frame is also equipped with a suction cup assembly for adsorbing the paper.

[0026] By adopting the above technical solution, when the suction cup frame transfers the paper to the packaging table, the upper folding mechanism can simultaneously complete the paper folding action, so that the adhesive area of ​​the paper coated with glue is flipped downward and set outward; after the paper is covered on the upper side of the finished board, the lower folding mechanism folds the lower paper, so that the four edges of the lower paper are flipped upward and tightly attached to the adhesive area of ​​the upper paper, ensuring that the finished board can be packaged with a top and bottom cover.

[0027] In summary, this application includes the following beneficial technical effects:

[0028] 1. This application uses a workbench to form a stable supporting base, ensuring the overlapping and positioning accuracy of the paper and the board to be packaged. The upper and lower folding mechanisms perform three-dimensional folding operations on the upper and lower papers respectively. The gluing mechanism selects the glue application position according to the folding and bonding requirements, realizing the gluing and pressing of the folded parts of the upper and lower papers, forming a tightly wrapped top and bottom cover-type packaging structure. This solves the problem of poor process connection caused by the step-by-step operation of traditional equipment, improves the folding efficiency of the board packaging paper, and helps to improve the overall packaging efficiency of the board. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a sheet packaging paper folding and bonding device according to an embodiment of this application.

[0030] Figure 2 This is a schematic diagram illustrating the structure of the upper folding mechanism in the embodiments of this application.

[0031] Figure 3 This is a schematic diagram illustrating the structure of the lower folding mechanism in the non-working state in the embodiments of this application.

[0032] Figure 4 This is a schematic diagram illustrating the structure of the paper being glued in the embodiments of this application.

[0033] Figure 5 This is a schematic diagram illustrating the structure of the flap assembly in the embodiments of this application.

[0034] Figure 6 This is a structural schematic diagram illustrating the working state of the lower folding mechanism in the embodiments of this application.

[0035] Figure 7 This is a control principle diagram illustrating the pulse control valve and displacement sensor in the embodiments of this application.

[0036] Figure 8 This is a schematic diagram illustrating the structure of the pressure plate body in the embodiments of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Workbench; 2. Upper folding mechanism; 21. Pressure plate assembly; 211. Pressure plate body; 2111. Raised surface; 2112. Recessed surface; 212. Lifting drive component; 3. Lower folding mechanism; 31. Flip plate assembly; 311. Rotating shaft; 312. Flip plate body; 313. Flipping drive component; 4. Glue application mechanism; 41. Paper feeding positioning table; 42. Glue spray head; 43. Pulse control valve; 44. Displacement sensor; 5. Pre-indentation; 6. Paper feeding gripping unit; 61. Truss; 62. Suction cup frame; 63. Suction cup assembly; 7. Glue application section; 8. Blank section. Detailed Implementation

[0038] The following combination Figures 1-8This application will be described in further detail below. Example

[0039] This application discloses a sheet packaging paper folding and bonding device. (Refer to...) Figures 1-3 A paperboard folding and bonding device includes a worktable 1, an upper folding mechanism 2, a lower folding mechanism 3, and a gluing mechanism 4. The worktable 1 supports the lower paper and the paperboard to be packaged stacked on top of it. The upper folding mechanism 2 is located above the worktable 1 and is used to fold the upper paper covering the upper surface of the paperboard to be packaged. The lower folding mechanism 3 is located on the worktable 1 and is used to fold the lower paper. The gluing mechanism 4 is located on one side of the worktable 1 and is used to apply glue to the edges of the lower paper and / or the edges of the upper paper. In this embodiment, the gluing mechanism 4 is used for gluing the edges of the upper paper.

[0040] When performing edge folding packaging, the bottom paper and board are first placed on the workbench 1, and the overlapping and positioning accuracy of the bottom paper and the board to be packaged is ensured. After the gluing mechanism 4 applies glue to the edge of the top paper, the upper edge folding mechanism 2 and the lower edge folding mechanism 3 respectively perform three-dimensional edge folding operations on the top paper and the bottom paper. After the edges of the top paper and the bottom paper are glued, a tightly wrapped top and bottom cover-type packaging structure is formed.

[0041] Reference Figure 4 Both the upper and lower paper sheets have pre-creases 5 at the edges to be folded, and the extension direction of the pre-creases 5 coincides with the bending axis during the corresponding folding operation. In this way, the pre-creases 5 provide a physical guide for the folding operation, allowing the upper and lower paper sheets to bend naturally along a predetermined trajectory during the folding process, eliminating angular deviations and crease misalignments during manual folding, while reducing the operating resistance of the upper folding mechanism 2 and the lower folding mechanism 3, reducing internal stress damage to the upper and lower paper sheets caused by excessive bending, and improving the folding quality and paper utilization rate.

[0042] Reference Figure 1 To ensure a smooth connection between the gluing and folding processes, the folding and bonding equipment also includes a paper feeding gripping unit 6 for gripping the paper, and the paper feeding gripping unit 6 is connected between the paper feeding positioning table 41 and the worktable 1.

[0043] Reference Figure 1 and Figure 2Specifically, the paper gripping unit 6 includes a truss 61 and a suction cup frame 62. The truss 61 spans above the paper positioning table 41 and the worktable 1. The suction cup frame 62 is slidable along the length of the truss 61 and can be raised and lowered vertically on the truss 61. The upper folding mechanism 2 is mounted on the suction cup frame 62, and the suction cup frame 62 is also equipped with a suction cup assembly 63 for adsorbing the paper. When the paper gripping unit 6 transfers the paper to the packaging table, the upper folding mechanism 2 can simultaneously complete the paper folding action, so that the adhesive area of ​​the paper coated with glue is flipped downward and facing outward. After the paper is covered on the upper side of the finished board, the lower folding mechanism 3 then performs a folding operation on the lower paper, so that the four edges of the lower paper are flipped upward and tightly attached to the adhesive area of ​​the upper paper, ensuring that the finished board can be packaged with a top and bottom cover.

[0044] Reference Figure 2 The upper folding mechanism 2 includes at least four sets of liftable pressure plate assemblies 21. Each pressure plate assembly 21 is mounted on a suction cup frame 62 and includes a pressure plate body 211 for pressing down the edge of the upper paper and a lifting drive 212 for driving the pressure plate body 211 to rise and fall. In this embodiment, the lifting drive 212 is a cylinder. When folding the upper paper, the lifting drive 212 drives the pressure plate body 211 to descend, pressing down on the periphery of the upper paper. After being pressed, the periphery of the upper paper bends downward along the pre-indentation 5, achieving the purpose of folding the upper paper.

[0045] Reference Figure 3 , Figure 5 and Figure 6 The lower folding mechanism 3 includes four sets of rotatable flap assemblies 31. Each flap assembly 31 includes a flap body 312 rotatably mounted on the worktable 1 via a rotating shaft 311 and a flipping drive 313 for driving the flap body 312 to flip. In this embodiment, the flipping drive 313 is a 90° rotating cylinder, and its output end is connected to the rotating shaft 311 of the flap body 312. In the initial state, the upper surface of the flap body 312 is flush with the top surface of the worktable 1. Driven by the flipping drive 313, it can perform a 90° flipping motion, pressing the flap body 312 against the outer edge of the folded lower paper. Thus, the flap body 312 remains coplanar with the worktable 1 in the non-working state, ensuring no mechanical interference during the board conveying process. After flipping, it forms a force-applying interface that is completely in contact with the outer side of the folded lower paper edge. Through centripetal compression, it enhances the tight bond between the folded edge and the adhesive layer. The folding action is dynamically matched with the adhesive curing process, maintaining the stability of the folded edge shape until the bonding is completed, which helps to ensure the stability of the packaging structure.

[0046] Reference Figure 1 and Figure 4The gluing mechanism 4 includes a paper-feeding positioning table 41 located on one side of the worktable 1 and four sets of movable glue spray heads 42 mounted on the paper-feeding positioning table 41, corresponding to the four edges of the paper. The movement trajectory of the glue spray heads 42 is parallel to the corresponding pre-indentation marks 5. When applying glue to the edges of the paper, the paper is first positioned using the paper-feeding positioning table 41, and then the four sets of glue spray heads 42 move along the direction parallel to the pre-indentation marks 5 to apply glue, ensuring the spatial matching of the glue line trajectory with the folded edge bonding area.

[0047] Reference Figure 1 , Figure 4 , Figure 7 and Figure 8 The gluing mechanism 4 also includes a pulse control valve 43 and a displacement sensor 44. The pulse control valve 43 is connected to the nozzle 42 via a pipeline, and the displacement sensor 44 is connected to the pulse control valve 43 via a signal connection. The displacement sensor 44 detects the movement position of the nozzle 42 and triggers the periodic opening and closing of the pulse control valve 43, so that the nozzle 42 forms spaced gluing sections 7 at the edge of the paper. Blank sections 8 are formed between adjacent gluing sections 7. The lower end of the pressure plate body 211 is provided with alternating raised surfaces 2111 and recessed surfaces 2112, with the raised surfaces 2111 corresponding to the blank sections 8 and the recessed surfaces 2112 corresponding to the gluing sections 7.

[0048] During adhesive application, the displacement sensor 44 monitors the movement of the spray nozzle 42 in real time and triggers the opening and closing of the pulse control valve 43, forming an intermittent adhesive application pattern. This reduces adhesive consumption while reserving uncoated areas as clearance space. The rapid response of the pulse control valve 43 ensures the uniformity of the length and spacing of the adhesive application segments 7, avoiding fluctuations in adhesive strength caused by intermittent or uneven adhesive application. Simultaneously, the alternating arrangement of the raised surface 2111 and the recessed surface 2112 on the bottom of the pressure plate body 211 allows the raised surface 2111 to precisely act on the blank segment 8 area for folding and shaping during the folding operation, while the recessed surface 2112 avoids the adhesive application segments 7 to prevent adhesive from adhering to the surface of the pressure plate body 211. This maintains the cleanliness of the pressure plate body 211 while ensuring the integrity of the adhesive layer at the folded area, thereby reducing the frequency of equipment cleaning and maintenance.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A board wrapping paper taping apparatus characterized by: The utility model relates to a kind of paper folding and gluing machine, including workbench (1), upper edge folding mechanism (2), lower edge folding mechanism (3) and upper gluing mechanism (4); The workbench (1) is used to support the paper and the board to be packaged stacked on the paper; The upper edge folding mechanism (2) is arranged above the workbench (1), and is used to fold the upper paper covering the upper surface of the board to be packaged; The lower edge folding mechanism (3) is arranged on the workbench (1), and is used to fold the lower paper; The upper gluing mechanism (4) is arranged on one side of the workbench (1), and is used to apply glue to the edge of the lower paper and / or the edge of the upper paper.

2. A board wrapper taping apparatus according to claim 1, wherein: The upper paper and the lower paper are provided with pre-press marks (5) at the edge to be folded, and the extension direction of the pre-press mark (5) coincides with the bending axis during the folding operation.

3. A board wrapper taping apparatus according to claim 2, wherein: The upper edge folding mechanism (2) includes at least four groups of liftable pressing plate assemblies (21), and each pressing plate assembly (21) includes a pressing plate body (211) for pressing the edge of the upper paper and a lifting drive (212) for driving the pressing plate body (211) to lift.

4. The board wrapper tucking and gluing apparatus according to claim 2, wherein: The lower edge folding mechanism (3) includes a reversible flap assembly (31), and the flap assembly (31) includes a flap body (312) rotatably arranged on the workbench (1) and a turnover drive (313) for driving the flap body (312) to turn over, and the upper surface of the flap body (312) is flush with the top surface of the workbench (1) in the initial state, and the flap body (312) can be turned over by 90° through the turnover drive (313) to press on the outside of the folded edge of the lower paper.

5. The board wrapper tucking and gluing apparatus according to claim 3, wherein: The upper gluing mechanism (4) includes an upper paper positioning table (41) arranged on one side of the workbench (1) and four groups of movable glue spraying heads (42) arranged on the upper paper positioning table (41) and corresponding to the four edges of the upper paper, and the movement track of the glue spraying head (42) is parallel to the corresponding pre-press mark (5).

6. A board wrapper taping apparatus according to claim 5, wherein: The upper gluing mechanism (4) further includes a pulse control valve (43) and a displacement sensor (44), the pulse control valve (43) is connected with the glue spraying head (42) pipeline, and the displacement sensor (44) detects the moving position of the glue spraying head (42) and triggers the periodic opening and closing of the pulse control valve (43) to form the glue applying sections (7) spaced apart on the edge of the upper paper.

7. A board wrapper taping apparatus according to claim 6, wherein: The blank sections (8) are formed between adjacent glue applying sections (7), the lower end of the pressing plate body (211) is provided with alternately distributed convex surfaces (2111) and concave surfaces (2112), and the convex surfaces (2111) are arranged corresponding to the blank sections (8), and the concave surfaces (2112) are arranged corresponding to the glue applying sections (7).

8. A board wrapper taping apparatus according to claim 5, wherein: Further comprising an upper paper grabbing unit (6) for grabbing the upper paper, and the upper paper grabbing unit (6) is connected between the upper paper positioning table (41) and the workbench (1).

9. A board wrapper taping apparatus according to claim 8, wherein: The upper paper grabbing unit (6) comprises a truss (61) and a suction disc rack (62), the truss (61) is arranged above the upper paper positioning table (41) and the workbench (1), the suction disc rack (62) is arranged on the truss (61) and can slide along the length direction of the truss (61) and can be lifted along the vertical direction, the upper edge folding mechanism (2) is arranged on the suction disc rack (62), and the suction disc assembly (63) for sucking the upper paper is further arranged on the suction disc rack (62).

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