Corrugated cardboard bending machine

Abstract

The application provides a corrugated board bending machine, which comprises an operation plate, a fixed frame is fixedly installed on the upper surface of the operation plate, two first hydraulic rods are fixedly installed on the upper surface of the fixed frame, a moving plate is fixedly installed on the lower side of the first hydraulic rod, a pressing frame is arranged on the lower side of the moving plate, a buffer mechanism is arranged between the pressing frame and the moving plate, and a blocking strip is fixedly installed on one side of the upper surface of the operation plate. The buffer mechanism of the bending machine skillfully uses the spring characteristics. In the instant when the pressing frame contacts the paperboard, the spring is elastically deformed, and the rigid impact force is converted into soft progressive pressure. This effectively avoids the problem that the traditional bending machine directly contacts rigidly, and the thin or high-precision corrugated board is scratched, damaged or deformed. Not only the product quality is improved, the waste rate is reduced, and the production cost is reduced, but also the stable structure design ensures the smooth buffer process, and reliable guarantee is provided for the paperboard bending.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard, and more specifically, to a corrugated cardboard bending machine. Background Technology

[0002] Corrugated cardboard is a multi-layered structural material made of corrugated core paper and flat linerboard bonded together with adhesives. The core corrugated core paper disperses pressure through its mechanical structure, giving the cardboard excellent compression resistance and cushioning properties, while the outer linerboard provides a smooth surface and tear resistance, making it a mainstream choice in the packaging industry. In the corrugated cardboard processing, the bending machine is a key piece of equipment, precisely controlling the bending angle and depth to ensure the cardboard is formed according to design requirements, providing reliable shape support for subsequent packaging applications.

[0003] During the bending process, existing corrugated cardboard bending machines lack an effective buffer mechanism. The pressing parts are in direct and rigid contact with the cardboard, which can easily cause indentations, damage, or deformation on the cardboard surface due to excessive instantaneous pressure. This problem is particularly prominent for thin or high-precision corrugated cardboard, which not only affects the quality of the finished product but also increases the scrap rate and production costs.

[0004] Furthermore, the positioning and adjustment mechanisms of traditional bending machines mostly rely on manual fixing or simple slide rails, making it difficult to accurately control the lateral movement of the cardboard bending position. Especially when it is necessary to adapt to cardboard of different widths or adjust the bending line position, the operation is cumbersome and the repetitive positioning accuracy is low, resulting in a decrease in production efficiency and failing to meet the needs of diverse packaging designs.

[0005] Therefore, we made improvements and proposed a corrugated cardboard bending machine. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a corrugated cardboard bending machine, which solves the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] Corrugated cardboard bending machines are used to solve the above problems.

[0009] The application is as follows:

[0010] The device includes an operation panel, on the upper surface of which a fixed frame is fixedly mounted, and on the upper surface of the fixed frame two first hydraulic rods are fixedly mounted. A movable plate is fixedly mounted on the lower telescopic end surface of the first hydraulic rods, and a pressure frame is provided on the lower side of the movable plate. A buffer mechanism is provided between the pressure frame and the movable plate. A stop bar is fixedly mounted on one side of the upper surface of the operation panel, and a movable bar is provided on one side of the stop bar. An adjustment mechanism is provided between the movable bar and the operation panel. A bending mechanism is provided on the surface of the operation panel, and a support leg is fixedly mounted on the lower surface of the operation panel.

[0011] The buffer mechanism includes a number of fixed rods, which are slidably connected to the movable plate. A spring is sleeved on the outside of the fixed rod, and the spring is fixedly installed between the lower surface of the movable plate and the lower pressure frame.

[0012] As a preferred technical solution of this application, the lower surface of the movable plate is provided with a plurality of connecting grooves, and a stop block is slidably connected inside the connecting groove, and the stop block is fixedly connected to the top end of the fixed rod.

[0013] As a preferred technical solution of this application, the adjustment mechanism includes a slide groove, which is formed on the surface of the operation panel. A slider is slidably connected inside the slide groove, and a moving bar is fixedly installed on the upper surface of the slider.

[0014] As a preferred technical solution of this application, the slide groove is internally rotatably connected with a threaded rod, and the connection between the slider and the threaded rod is a threaded connection. One end of the threaded rod extends out of the slide groove, and a knob is fixedly installed on one end of the threaded rod.

[0015] As a preferred technical solution of this application, the bending mechanism includes a groove, and the groove is formed on the surface of the operating plate, and a rotating plate is rotatably connected inside the groove.

[0016] As a preferred technical solution of this application, an installation rod is fixedly installed between the two support legs, and an installation block is rotatably connected to the outside of the installation rod. A second hydraulic rod is fixedly installed on the surface of the installation block, and a connecting block is fixedly installed at the top of the second hydraulic rod, and the connecting block is hinged to the rotating plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In the scheme of this application:

[0019] 1. The buffer mechanism of this bending machine cleverly utilizes the characteristics of springs. At the moment the lower pressure frame contacts the cardboard, the spring undergoes elastic deformation, transforming the rigid impact force into a gentle, gradual pressure. This effectively avoids the problems of indentation, damage, and deformation of thin or high-precision corrugated cardboard caused by direct rigid contact in traditional bending machines. It not only improves finished product quality, reduces scrap rates, and lowers production costs, but also ensures a smooth buffering process through a stable structural design, providing reliable protection for cardboard bending.

[0020] 2. The adjustment mechanism of this bending machine uses a rotary knob to drive a threaded rod, which, through a threaded connection, allows the slider to move precisely and linearly, thereby accurately positioning the moving strip. Compared to traditional methods, this is simpler to operate, eliminates the need for repeated tightening and loosening, saves time, and improves production efficiency. It also achieves accurate positioning, preventing bending line deviation, and can meet packaging requirements of different specifications and designs, enhancing the equipment's applicability. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a frontal cross-sectional view of the present invention.

[0023] Figure 3 This is a three-dimensional structural diagram of the bottom of this utility model;

[0024] Figure 4 This utility model Figure 2 A magnified structural diagram of part A in the middle.

[0025] The image shows:

[0026] 1. Control panel; 2. Fixing frame; 3. First hydraulic rod; 4. Moving plate; 5. Lower pressure frame; 6. Buffer mechanism; 601. Fixing rod; 602. Spring; 603. Connecting groove; 604. Stop block; 7. Stop bar; 8. Moving bar; 9. Adjusting mechanism; 901. Slide groove; 902. Sliding block; 903. Threaded rod; 904. Knob; 10. Bending mechanism; 1001. Groove; 1002. Rotating plate; 1003. Mounting rod; 1004. Mounting block; 1005. Second hydraulic rod; 1006. Connecting block; 11. Support leg. Detailed Implementation

[0027] 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 examples are only some embodiments of this utility model, and not all embodiments.

[0028] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] To address the technical problems mentioned in the background section, the following corrugated cardboard bending machine is provided:

[0033] Combination Figure 1 - Figure 4 As shown, the present invention provides a corrugated cardboard bending machine, including an operation panel 1. A fixed frame 2 is fixedly installed on the upper surface of the operation panel 1, and two first hydraulic rods 3 are fixedly installed on the upper surface of the fixed frame 2. A movable plate 4 is fixedly installed on the lower telescopic end surface of the first hydraulic rods 3, and a lower pressure frame 5 is provided on the lower side of the movable plate 4. A buffer mechanism 6 is provided between the lower pressure frame 5 and the movable plate 4. A stop bar 7 is fixedly installed on one side of the upper surface of the operation panel 1, and a movable strip 8 is provided on one side of the stop bar 7. An adjustment mechanism 9 is provided between the movable strip 8 and the operation panel 1. A bending mechanism 10 is provided on the surface of the operation panel 1, and a support leg 11 is fixedly installed on the lower surface of the operation panel 1. The buffer mechanism 6 includes a fixed rod 601, and several fixed rods 601 are provided. The fixed rods 601 are slidably connected to the movable plate 4. A spring 602 is sleeved on the outside of the fixed rod 601, and the spring 602 is fixedly installed between the lower surface of the movable plate 4 and the lower pressure frame 5.

[0034] In this embodiment: the operating plate 1 serves as the base support, with a stable and reliable fixed frame 2 mounted on it. Two first hydraulic rods 3 above the fixed frame 2 provide power for the downward pressing action. The movable plate 4 moves up and down under the drive of the telescopic ends of the first hydraulic rods 3, and the pressing frame 5 below it directly contacts the corrugated cardboard. In the buffer mechanism 6, several fixed rods 601 are slidably connected to the movable plate 4. The externally sleeved springs 602 undergo elastic deformation at the moment of pressing, converting rigid impact into gentle pressure, effectively protecting the cardboard. Furthermore, the upper stop bar 7 of the operating plate 1 cooperates with the movable bar 8, achieving accurate positioning through the adjustment mechanism 9. The bending mechanism 10 ensures the cardboard is formed as needed, and the support legs 11 provide stable support for the entire machine.

[0035] In a preferred embodiment, a plurality of connecting grooves 603 are evenly provided on the lower surface of the movable plate 4, and a stop block 604 is slidably connected inside the connecting groove 603, and the stop block 604 is fixedly connected to the top end of the fixed rod 601.

[0036] In this embodiment, the stop 604 ensures that the fixed rod 601 maintains a vertical movement trajectory during its up-and-down movement, preventing deviation or swaying. It also effectively limits the compression stroke of the spring 602 and limits the position of the fixed rod 601.

[0037] In a preferred embodiment, the adjustment mechanism 9 includes a slide groove 901, which is formed on the surface of the operation plate 1. A slider 902 is slidably connected inside the slide groove 901, and a moving bar 8 is fixedly installed on the upper surface of the slider 902.

[0038] In this embodiment, the slider 902 slides smoothly in the groove 901, and the movable strip 8, which is fixedly installed on the upper surface of the slider 902, can flexibly adjust its position as the slider 902 moves. When facing corrugated cardboard of different widths or when the bending line position needs to be adjusted, accurate positioning can be easily achieved. The operation is simple and efficient, which greatly improves the applicability and production efficiency of the bending machine.

[0039] In a preferred embodiment, a threaded rod 903 is rotatably connected inside the slide groove 901, and the connection between the slider 902 and the threaded rod 903 is a threaded connection. One end of the threaded rod 903 extends out of the slide groove 901, and a knob 904 is fixedly installed on one end of the threaded rod 903.

[0040] In this embodiment: when the threaded rod 903, which extends out of the slide groove 901 and has a knob 904, is rotated, the slider 902 will move along the slide groove 901, thereby adjusting the position of the moving bar 8.

[0041] In a preferred embodiment, the bending mechanism 10 includes a groove 1001, which is formed on the surface of the operation plate 1, and a rotating plate 1002 is rotatably connected inside the groove 1001.

[0042] In this embodiment, the rotating plate 1002 rotates within the groove 1001. During the bending process, the rotating plate 1002 can rotate flexibly according to a preset angle to bend the corrugated cardboard into the required shape, effectively improving the efficiency and quality of the entire packaging production process.

[0043] In a preferred embodiment, an installation rod 1003 is fixedly installed between the two support legs 11, and an installation block 1004 is rotatably connected to the outside of the installation rod 1003. A second hydraulic rod 1005 is fixedly installed on the surface of the installation block 1004, and a connecting block 1006 is fixedly installed at the top of the second hydraulic rod 1005. The connecting block 1006 is hinged to the rotating plate 1002.

[0044] In this embodiment: The second hydraulic rod 1005, fixedly mounted on the mounting block 1004, can control the extension and retraction length by means of its hydraulic drive capability. Through the hinged connection between the top connecting block 1006 and the rotating plate 1002, the extension and retraction action of the second hydraulic rod 1005 can be converted into the flexible rotation of the rotating plate 1002, thereby realizing the bending operation of the corrugated cardboard.

[0045] Specifically, the working principle of this solution is as follows:

[0046] During operation, first place the corrugated cardboard on the operating plate 1, with one side close to the stop bar 7. According to the width of the cardboard or the required bending line position, turn the knob 904 to drive the threaded rod 903 to rotate. Since the slider 902 is threadedly connected to the threaded rod 903 and slides in the slide groove 901, the slider 902 will move along the slide groove 901, thereby driving the moving bar 8 to move and achieve accurate positioning.

[0047] Once positioned, the first hydraulic rod 3 is activated, and its telescopic end drives the moving plate 4 downward, causing the lower pressure frame 5 to contact the cardboard. The buffer mechanism 6 then functions, with the fixed rod 601 sliding within the connecting groove 603, compressing the spring 602 and converting the rigid impact into gentle pressure to protect the cardboard.

[0048] Next, the second hydraulic rod 1005 is activated, and its telescopic end drives the rotating plate 1002 to rotate within the groove 1001 via the connecting block 1006, bending the cardboard into the desired shape at a preset angle. Throughout the process, the support leg 11 provides stable support for the entire machine.

[0049] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0050] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A corrugated cardboard bending machine, comprising an operation panel (1), characterized in that: A fixed frame (2) is fixedly installed on the upper surface of the operating plate (1), and two first hydraulic rods (3) are fixedly installed on the upper surface of the fixed frame (2). A movable plate (4) is fixedly installed on the lower telescopic end surface of the first hydraulic rod (3), and a pressure frame (5) is provided on the lower side of the movable plate (4). A buffer mechanism (6) is provided between the pressure frame (5) and the movable plate (4). A stop bar (7) is fixedly installed on one side of the upper surface of the operating plate (1), and a movable bar (8) is provided on one side of the stop bar (7). An adjustment mechanism (9) is provided between the movable bar (8) and the operating plate (1). A bending mechanism (10) is provided on the surface of the operating plate (1), and a support leg (11) is fixedly installed on the lower surface of the operating plate (1). The buffer mechanism (6) includes a fixed rod (601), and there are several fixed rods (601). The fixed rod (601) is slidably connected to the moving plate (4). A spring (602) is sleeved on the outside of the fixed rod (601), and the spring (602) is fixedly installed between the lower surface of the moving plate (4) and the lower pressure frame (5).

2. The corrugated cardboard bending machine according to claim 1, characterized in that: The lower surface of the movable plate (4) is evenly provided with a number of connecting grooves (603), and a stop block (604) is slidably connected inside the connecting groove (603). The stop block (604) is fixedly connected to the top end of the fixed rod (601).

3. The corrugated cardboard bending machine according to claim 1, characterized in that: The adjustment mechanism (9) includes a slide groove (901), and the slide groove (901) is opened on the surface of the operation plate (1). A slider (902) is slidably connected inside the slide groove (901), and a moving bar (8) is fixedly installed on the upper surface of the slider (902).

4. A corrugated cardboard bending machine according to claim 3, characterized in that: The slide groove (901) is rotatably connected to a threaded rod (903), and the connection between the slider (902) and the threaded rod (903) is a threaded connection. One end of the threaded rod (903) extends out of the slide groove (901), and a knob (904) is fixedly installed on one end of the threaded rod (903).

5. A corrugated cardboard bending machine according to claim 1, characterized in that: The bending mechanism (10) includes a groove (1001), and the groove (1001) is formed on the surface of the operating plate (1). A rotating plate (1002) is rotatably connected inside the groove (1001).

6. A corrugated cardboard bending machine according to claim 5, characterized in that: An installation rod (1003) is fixedly installed between the two support legs (11), and an installation block (1004) is rotatably connected to the outside of the installation rod (1003). A second hydraulic rod (1005) is fixedly installed on the surface of the installation block (1004), and a connecting block (1006) is fixedly installed at the top of the second hydraulic rod (1005). The connecting block (1006) is hinged to the rotating plate (1002).

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