A portable automatic box folding machine

Abstract

The utility model provides a kind of portable automatic folding box machine, including cabinet, workbench and stacking table;Workbench is correspondingly provided with taking-out mechanism and folding box mechanism;Taking-out mechanism includes guide rail piece, lifting rod and suction piece;Folding box mechanism includes pre-folding box assembly, folding side edge assembly and vertical folding edge assembly;Suction piece is after grabbing paper blank to folding box station, by lifting rod pressing box bottom to adhere to folding box station;By pre-folding box assembly is used to carry out preliminary angle bending to the side edge and side ear of paper blank, by folding side edge assembly is folded to vertical angle to the side edge of paper blank, and the flanging of paper blank is inverted to inside of box, by vertical folding edge assembly is used to fold to vertical angle to the front edge and two side ears, rear edge and two side ears of paper blank;Overall structure is complete, angle is unified, paper blank is evenly stressed in folding process, avoid the wrinkle or deformation caused by single-point pressure, so that the appearance of formed box body is neat, and combination is tight.

Description

Technical Field

[0001] This utility model relates to the field of box folding machine technology, and more specifically, to a convenient automatic box folding machine. Background Technology

[0002] Currently, in the paper box forming and packaging production process, the folding process of the paper blank is usually completed manually or by semi-automatic equipment. Manual folding is not only labor-intensive and inefficient, but also prone to problems such as incorrect folds, misaligned adhesives, or insufficient box forming precision due to varying operator skill levels, making it difficult to meet the requirements of mass production. While existing semi-automatic folding equipment can perform partial side folding or pressing, it often relies on manual handling or additional conveying devices, leading to complex process connections. Furthermore, existing folding devices can only achieve unidirectional or partial folding, failing to complete the overall forming of the box's four sides and side ears. Therefore, they lack coordinated control of multiple stages such as material handling, positioning, pre-folding, flipping, and forming, hindering continuous automated production. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a convenient automatic box folding machine to solve the above problems.

[0004] The present invention adopts the following solution:

[0005] This application provides a convenient automatic box folding machine, including a machine casing, a workbench configured inside the machine casing, and a stacking platform for stacking paper blanks; the workbench is correspondingly provided with a material picking mechanism and a box folding mechanism; the material picking mechanism includes a guide rail horizontally placed between the workbench and the stacking platform, a lifting rod configured on the guide rail, and a suction component configured on the lifting rod; the box folding mechanism includes pre-folding box components and side-folding components configured on the left and right sides of the box folding station, and vertical folding components configured on the front and rear sides of the box folding station; after the suction component picks up the paper blank to the box folding station, it presses the bottom of the box to fit against the box folding station by the lifting rod; the pre-folding box component is used to perform preliminary angle bending of the side edges and side ears of the paper blank; the side-folding component folds the side edges of the paper blank to a vertical angle and flips the folded edges of the paper blank to the inside of the box; the vertical folding component folds the front and side ears, and the back and side ears of the paper blank to a vertical angle.

[0006] As a further improvement, the back of the paper blank is connected to at least a box cover, and the box cover and the back are kept on the same plane; a box pusher is provided in front of the suction component, and the box pusher can follow the suction component to the next folding station and directly push the entire folded paper box to the next station.

[0007] As a further improvement, the box-folding station is connected to a box-moving channel in front, and the box-moving channel is provided with at least a sliding plate for forming a box bottom support and sliding rods formed on both sides of the sliding plate.

[0008] As a further improvement, the guide rail is installed on the top of the chassis, and the lifting rod and the suction component are respectively hoisted and moved between the material picking station of the stacking platform and the box folding station of the workbench.

[0009] As a further improvement, the pre-folded box assembly has at least a folding plate that pre-folds the two sides to an inclined angle, and a lifting member that pre-folds each side ear to a vertical angle.

[0010] As a further improvement, the folding side assembly includes a sliding seat that can linearly move toward the paper blank at the folding station, and a rotating arm disposed on the sliding seat; the folding plate is disposed on the sliding seat and is used to follow the sliding seat to push the side from an inclined angle to a vertical angle; the rotating arm is controlled to flip the folding edge inward and fold it onto the inside of the box.

[0011] As a further improvement, the vertical folding assembly includes a flipping rod and a contact wheel disposed on the flipping rod; the flipping rod has a horizontal state and a vertical state, and can fold the front and side ears, and the rear and side ears to a vertical angle after switching to the vertical state; and, the side ears are inserted into the inside of the box to be accommodated in the folded edge and the side after the folded edge is folded up.

[0012] As a further improvement, the flipping rod of the front vertical folding assembly switches from a horizontal state to a vertical state clockwise; the flipping rod of the rear vertical folding assembly switches from a horizontal state to a vertical state counterclockwise; the contact wheel is always in contact with the front / rear rollers during the folding operation.

[0013] As a further improvement, the sliding seat is provided with a rotary motor, and the rotary arm is connected to the rotary motor. The rotary arm includes a connecting part located outside the box and a shaping plate that can extend into the box. The shaping plate is arc-shaped and is used to fit against the flange to press it to fold inward.

[0014] As a further improvement, the sliding seat moves inward, which in turn causes the folding plate to flip to a vertical angle. At this time, the rotary motor controls the connecting arm to rotate 90° to perform the flipping and buckling operation.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] This application discloses a convenient automatic box folding machine. Through the cooperation of guide rails and lifting rods, the suction component can automatically grab and convey paper blanks between the stacking table and the box folding station. After the paper blanks are placed, the suction component further presses down and adheres the bottom of the box through the lifting rod, so that the paper blanks are accurately positioned on the box folding station, providing a reference for subsequent edge folding. The box folding mechanism consists of a pre-folding box assembly, a side folding assembly, and a vertical edge folding assembly. They work together from different directions to achieve sequential folding of the sides, side ears, front and back. The pre-folding achieves angle pre-shaping, the side folding assembly completes the side vertical folding and edge flipping, and the vertical edge folding assembly further shapes the front and back edges in three dimensions. The overall structure is complete and the angles are uniform. During the folding process, the paper blanks are subjected to uniform force, avoiding wrinkles or deformation caused by single-point pressure, so that the formed box has a regular shape and tight fit. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a convenient automatic box folding machine according to an embodiment of the present utility model;

[0018] Figure 2 yes Figure 1 Structural diagrams from other perspectives;

[0019] Figures 3 to 6 This is a schematic diagram of the structure of the convenient automatic box folding machine according to an embodiment of the present utility model from multiple perspectives;

[0020] Figure 7 This is a schematic diagram of the folding mechanism of the convenient automatic folding box machine according to an embodiment of the present utility model;

[0021] Figure 8 This is a schematic diagram of the paper blank of the convenient automatic box folding machine according to an embodiment of the present utility model;

[0022] Figure 9 This is a schematic diagram of the structure of the paper box after folding and forming, which is a convenient automatic folding box machine according to an embodiment of this utility model.

[0023] icon:

[0024] 1-Chassis; 11-Workbench; 12-Stacking platform; 13-Sliding plate; 14-Sliding rod; 2-Material handling mechanism; 21-Guide rail; 22-Lifting rod; 23-Suction component; 24-Push box component; 3-Folding box mechanism; 31-Pre-folding box assembly; 311-Folding plate component; 312-Lifting component; 32-Folding side assembly; 321-Sliding seat; 322-Rotating arm; 323-Rotating motor; 324-Connecting part; 325-Shaping plate; 33-Vertical folding edge assembly; 331-Flipping rod; 332-Contact wheel; 4-Paper blank; 41-Box bottom; 42-Side; 43-Front; 44-Rear; 45-Side ear; 46-Folding edge; 47-Box lid. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0026] Example

[0027] Combination Figures 1 to 9 This embodiment provides a convenient automatic box folding machine, including a machine housing 1, a workbench 11 disposed within the machine housing 1, and a stacking platform 12 for stacking paper blanks 4. The workbench 11 is equipped with a material picking mechanism 2 and a box folding mechanism 3. The material picking mechanism 2 includes a guide rail 21 horizontally positioned between the workbench 11 and the stacking platform 12, a lifting rod 22 disposed on the guide rail 21, and a suction component 23 disposed on the lifting rod 22. The box folding mechanism 3 includes pre-folding box components 31 and folding side components 32 disposed on the left and right sides of the box folding station, and vertical folding edge components 33 disposed on the front and rear sides of the box folding station. After the suction component 23 picks up the paper blank 4 to the box folding station, it presses the box bottom 41 against the box folding station via the lifting rod 22. The pre-folding box assembly 31 is used to initially bend the side 42 and side ears 45 of the paper blank 4 at an angle. The side folding assembly 32 is used to fold the side 42 of the paper blank 4 to a vertical angle and to flip the folded edge 46 of the paper blank 4 to the inside of the box. The vertical folding assembly 33 is used to fold the front edge 43 and the two side ears 45, the back edge 44 and the two side ears 45 of the paper blank 4 to a vertical angle.

[0028] The automatic box-folding machine described above, through the cooperation of guide rail 21 and lifting rod 22, allows suction component 23 to automatically grab and convey paper blank 4 between stacking table 12 and box-folding station. After placing paper blank 4, suction component 23 further presses down and adheres box bottom 41 via lifting rod 22, accurately positioning paper blank 4 at box-folding station, providing a reference for subsequent edge folding. The box-folding mechanism 3 consists of pre-folding box assembly 31, side folding assembly 32, and vertical edge folding assembly 33. The folding mechanism works in different directions to achieve sequential folding of the side 42, side ears 45, front 43, and rear 44. The angle is pre-shaped through pre-folding. The folding component completes the vertical folding of the side 42 and the inverted folding of the flange 46. The vertical folding component 33 then forms the front and rear sides 44 in three dimensions. The overall structure is complete and the angle is uniform. During the folding process, the paper blank 4 is subjected to uniform force, avoiding wrinkles or deformation caused by single-point pressure. This results in a neat and tightly connected box after the formation.

[0029] In this embodiment, at least a box cover 47 is connected to the rear side 44 of the paper blank 4, and the box cover 47 and the rear side 44 are kept on the same plane. A box pusher 24 is provided in front of the suction member 23. The box pusher 24 can follow the suction member 23 to the next folding station and directly push the entire folded paper box to the next station.

[0030] In the above-described design, by connecting the lid 47 to the rear 44 and ensuring that the lid 47 and the rear 44 are on the same plane, the lid 47 can directly abut against the pusher 24 after the folding action is completed, achieving stable pushing of the formed carton. This creates a continuous automatic conveying process between the folding station and the next station, eliminating the need for an additional robotic arm. Furthermore, the pusher 24 is positioned in front of the suction unit 23 and can reciprocate with it. When the suction unit 23 performs its next material-picking action, the pusher 24 simultaneously pushes forward, smoothly conveying the previously folded carton. This achieves a continuous cycle of the three actions: material picking, folding, and pushing, resulting in a continuous production cycle with no waiting time and significantly improved production efficiency.

[0031] Clearly, the lid 47 and the rear side 44 are flush, making it both part of the carton structure and a pushing surface during transport. This avoids direct contact with the box side 42, preventing deformation or tilting and ensuring a smooth and reliable pushing process. Since the pusher 24 can achieve synchronous movement using the reciprocating stroke of the suction component 23, there is no need for an additional independent pusher motor or conveyor belt structure, thus simplifying the overall device structure and reducing equipment costs and maintenance complexity.

[0032] In this embodiment, the folding station is connected to a box-moving channel in front. The box-moving channel is equipped with at least a sliding plate 13 for supporting the box bottom 41, and sliding rods 14 formed on both sides of the sliding plate 13. The box-moving channel is connected to the front of the folding station, so that the formed carton can move directly along the channel after being pushed by the box pusher 24, avoiding the carton from piling up or tipping over in the folding station, and achieving a smooth connection between folding and unloading. The sliding plate 13 supports the box bottom 41 of the carton, keeping the bottom 41 of the carton in flat contact during pushing or conveying, preventing the carton from shaking, deforming or tilting due to the bottom being suspended or uneven friction, and improving the stability of conveying. The sliding rods 14 are arranged on both sides of the sliding plate 13 to guide and limit the left and right side walls of the carton, preventing the carton from shifting left or right or getting stuck during conveying, and ensuring that the carton moves in a straight line along the predetermined channel.

[0033] Preferably, the sliding plate 13 at the front end is used to form a partial box folding station, and multiple sets of suction cups are symmetrically provided on the sliding plate 13 in the area where the box folding station is located. The suction cups are used to adsorb and fix the box bottom 41 during box folding by means of negative pressure, and to release the adsorption on the box bottom 41 during transmission.

[0034] It should be noted that the guide rail 21 is installed on the top of the chassis 1, and the lifting rod 22 and the suction component 23 are correspondingly hoisted and moved at the material picking station of the stacking platform 12 and the box folding station of the worktable 11. In this way, the guide rail 21 provides a stable linear guiding path, ensuring that the lifting rod 22 and the suction component 23 maintain a stable running trajectory when moving horizontally, accurately aligning the picked-up paper blank 4 above the box folding station, ensuring the positioning accuracy of subsequent box folding and forming. Furthermore, when the lifting rod 22 slides along the guide rail 21, it allows the suction component 23 to maintain a stable posture between picking up and discharging material, preventing the paper blank 4 from shifting, warping, or falling off during hoisting, thereby improving the stability of automated operation. Preferably, the suction component 23 is composed of multiple suction cups, used for direct adsorption onto the box bottom 41 of the paper blank 4.

[0035] like Figures 4 to 7 As shown, in this embodiment, the pre-folded box assembly 31 has at least a folding plate 311 that pre-folds the two sides 42 to an inclined angle, and a lifting member 312 that pre-folds each side ear 45 to a vertical angle.

[0036] The folding side assembly 32 includes a sliding base 321 that can linearly move toward the paper blank 4 at the folding station, and a rotating arm 322 disposed on the sliding base 321. The folding plate 311 is disposed on the sliding base 321 and is used to follow the sliding base 321 to push the side 42 from an inclined angle to a vertical angle. The rotating arm 322 is controlled to flip the flange 46 inward and fold it onto the inside of the box.

[0037] The vertical folding assembly 33 includes a flipping rod 331 and a contact wheel 332 disposed on the flipping rod 331. The flipping rod 331 has a horizontal state and a vertical state, and when switched to the vertical state, it can fold the front side 43 and the two side ears 45, and the rear side 44 and the two side ears 45 to a vertical angle. Furthermore, the side ears 45 are inserted into the inside of the box, and are accommodated within the flipped edge 46 and the side edge 42 after the folded edge 46 is folded down.

[0038] In the above-mentioned configuration, by arranging a pre-folding box assembly 31, a side-folding assembly 32, and a vertical folding assembly 33 around the box-folding station, the paper blank 4 can sequentially complete the pre-folding, vertical folding, and folding actions 46 within the same station, achieving fully automatic box folding and reducing manual intervention. Furthermore, the folding plate 311 of the pre-folding box assembly 31 works together with the lifting component 312 to provide preliminary guidance for the side 42 and side ears 45 before formal folding, enabling the paper blank 4 to form an initial three-dimensional outline and improving the stability of subsequent folding. To ensure consistent forming, while the sliding seat 321 in the folding side assembly 32 drives the folding plate 311 to push the side 42 upright, the rotating arm 322 is controlled to invert the folded edge 46 into the box, ensuring that the folded edge 46 and the upright folding action are completed synchronously, improving the fit quality of the folded edge 46. Meanwhile, the flipping rod 331 drives the contact wheel 332 to rotate, which can simultaneously fold the front edge 43, the rear edge 44 and the side ear 45 in a vertical state, so that the side ear 45 can be inserted into the box smoothly, making the forming flat.

[0039] The material handling mechanism 2 presses and adheres the bottom 41 of the box after hoisting the paper blank 4, so that the paper blank 4 is stably positioned on the folding station, preventing it from shifting or tilting, and providing an accurate reference for subsequent folding. Each folding component is distributed around the folding station, and the actions of the mechanisms do not interfere with each other. The mechanism can be modularly adjusted according to the size and style of the paper box, and is suitable for the automatic folding production of paper boxes of different specifications.

[0040] like Figure 5 and Figure 7 As shown, in this embodiment, the vertical folding assembly 33 located at the front 43 has its flipping rod 331 switched from a horizontal state to a vertical state clockwise. The vertical folding assembly 33 located at the rear 44 has its flipping rod 331 switched from a horizontal state to a vertical state counterclockwise. This makes the folding directions of the front and rear edges 44 of the paper box opposite, avoiding folding interference and improving the coordination of folding actions.

[0041] During the folding operation, the contact wheel 332 is always in contact with the front 43 / rear 44 rollers. The contact wheel 332 maintains continuous contact with either the front 43 or rear 44 rollers throughout the folding process, ensuring continuous contact between the folded edge surface and the contact wheel 332. This prevents slippage or uneven creases during folding, thus guaranteeing smooth creases and a neat box appearance.

[0042] It should be mentioned that the guide rail 21 and lifting rod 22 of the material handling mechanism 2 each have their own power source to control their respective movement. Correspondingly, the linear movement of the sliding seat 321 of the folding box mechanism 3, the lifting drive of the lifting member 312, and the state switching of the flipping rod 331 are all equipped with drive structures to achieve more independent and efficient operation.

[0043] like Figures 4 to 7 As shown, in this embodiment, a rotary motor 323 is provided on the sliding base 321, and the rotary arm 322 is connected to the rotary motor 323. The rotary arm 322 includes a connecting part 324 located outside the box and a shaping plate 325 that can extend into the box. The shaping plate 325 is arc-shaped and is used to fit against the flange 46 to press it inward. On one hand, the rotary motor 323 drives the rotary arm 322 to rotate in a controlled manner, so that the shaping plate 325 can move precisely within a preset angle range, thereby smoothly folding the flange 46 of the paper blank 4 inward towards the box, avoiding inconsistent angles or uneven creases caused by manual operation. On the other hand, the shaping plate 325, through its arc-shaped structure, can smoothly fit against the surface of the flange 46 during the folding process, realizing a progressive inward folding action, effectively preventing the flange 46 from being excessively squeezed, torn, or producing irregular creases, thereby improving the flatness and forming quality of the folded box appearance.

[0044] In this embodiment, the inward movement of the sliding base 321 corresponds to the folding plate 311 being flipped to a vertical angle. At this time, the rotary motor 323 controls the connecting arm to rotate 90° to perform the inverted operation of the flange 46. When the sliding base 321 moves inward, it drives the folding plate 311 to fold the side 42 of the paper blank 4 to a vertical angle. Simultaneously, the rotary motor 323 controls the connecting arm to rotate 90° to drive the shaping plate 325 to perform the inverted operation of the flange 46, so that the forming actions of the side 42 and the flange 46 are completed in the same cycle, greatly improving the efficiency of folding the box. In addition, the displacement of the sliding base 321 and the rotation of the rotary arm 322 are coordinated in terms of time and angle, so that the folding angle relationship between the vertical fold of the side 42 and the inverted flange 46 corresponds precisely, avoiding misalignment or poor adhesion of the flange 46 due to asynchronous actions, and improving the forming accuracy.

[0045] Preferably, the folding side components 32 are respectively positioned opposite each other on the left and right sides of the folding station, for simultaneously performing automatic folding operations on their respective sides 42 and flanges 46. Thus, the opposing folding side components 32 can simultaneously fold their respective sides 42 and flanges 46, allowing the folding action to be completed on both sides at the same time, avoiding box tilting or asymmetry caused by unilateral folding. Through synchronous folding, the folded corners, flange 46 fit, and three-dimensional shape of the cardboard box on both sides remain highly consistent, ensuring left-right symmetry of the box and improving product appearance quality and forming stability.

[0046] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

Claims

1. A convenient automatic box folding machine, characterized in that, It includes a chassis, a workbench configured inside the chassis, and a stacking platform for stacking paper blanks; the workbench is equipped with a material picking mechanism and a box folding mechanism. The material handling mechanism includes a guide rail horizontally placed between the workbench and the stacking platform, a lifting rod disposed on the guide rail, and a suction device disposed on the lifting rod. The box folding mechanism includes pre-folding box components and folding side components arranged on the left and right sides of the box folding station, and vertical folding edge components arranged on the front and rear sides of the box folding station. The material suction component, after grasping the paper blank to the folding station, presses the bottom of the box to fit it onto the folding station via the lifting rod; the pre-folding box assembly is used to perform preliminary angle bending of the side edges and side ears of the paper blank; the side folding assembly is used to fold the side edges of the paper blank to a vertical angle and to flip the folded edge of the paper blank to the inside of the box; the vertical folding assembly is used to fold the front and side ears, and the back and side ears of the paper blank to a vertical angle.

2. The convenient automatic box folding machine according to claim 1, characterized in that, The back of the paper blank is connected to at least a box cover, and the box cover and the back are on the same plane; a pusher is provided in front of the suction component, and the pusher can follow the suction component to the next folding station and directly push the entire folded paper box to the next station.

3. The convenient automatic box folding machine according to claim 2, characterized in that, The box-folding station is connected to a box-moving channel in front. The box-moving channel is equipped with at least a sliding plate for forming a support for the bottom of the box, and sliding rods formed on both sides of the sliding plate.

4. The convenient automatic box folding machine according to claim 1, characterized in that, The guide rail is installed on the top of the machine box, and the lifting rod and the suction component are hoisted and moved to the material picking station of the stacking platform and the box folding station of the worktable, respectively.

5. The convenient automatic box folding machine according to claim 1, characterized in that, The pre-folded box assembly has at least a folding plate that pre-folds the two sides to an inclined angle, and a lifting member that pre-folds each side ear to a vertical angle.

6. The convenient automatic box folding machine according to claim 5, characterized in that, The folding side assembly includes a sliding seat that can linearly move toward the paper blank at the folding station, and a rotating arm disposed on the sliding seat; the folding plate is disposed on the sliding seat and is used to follow the sliding seat to push the side from an inclined angle to a vertical angle; the rotating arm is controlled to flip the folding edge inward and fold it onto the inside of the box.

7. The convenient automatic box folding machine according to claim 6, characterized in that, The vertical folding assembly includes a flipping rod and a contact wheel disposed on the flipping rod; the flipping rod has a horizontal state and a vertical state, and can fold the front and side ears, and the back and side ears to a vertical angle after switching to the vertical state; and, the side ears are inserted into the inside of the box to be accommodated in the folded edge and the side after the folded edge is turned upside down.

8. The convenient automatic box folding machine according to claim 7, characterized in that, The front vertical folding assembly has a flipping rod that switches from a horizontal to a vertical state clockwise; the rear vertical folding assembly has a flipping rod that switches from a horizontal to a vertical state counterclockwise; the contact wheel is always in contact with the front / rear rollers during the folding operation.

9. The convenient automatic box folding machine according to claim 6, characterized in that, The sliding seat is equipped with a rotary motor, and the rotary arm is connected to the rotary motor. The rotary arm includes a connecting part located outside the box and a shaping plate that can extend into the inside of the box. The shaping plate is arc-shaped and is used to fit against the flange to press it to fold inward.

10. The convenient automatic box folding machine according to claim 9, characterized in that, The sliding seat moves inward, which in turn causes the folding plate to flip to a vertical angle. At this time, the rotary motor controls the connecting arm to rotate 90° to perform the flipping and buckling operation.

Images