Indentation device for corrugated board processing

The problem of uneven creasing on corrugated cardboard is solved by using a hydraulically driven elastic creasing assembly and an adjustable limit assembly, achieving uniform creasing and stability, and ensuring product quality and equipment adaptability.

CN224183872UActive Publication Date: 2026-05-01SUZHOU JIAFENG PAPER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU JIAFENG PAPER CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing creasing devices for corrugated cardboard processing are prone to causing creasing that is too deep or too shallow, or even puncturing the cardboard, affecting product quality.

Method used

The elastic creasing assembly is driven by a hydraulic cylinder within the support frame. Combined with the adjustment and limiting assemblies, it achieves uniform creasing of the corrugated cardboard. The elastic creasing assembly provides a buffering effect, and the elasticity is adjusted according to the cardboard thickness. The limiting assemblies ensure the stability of the device.

Benefits of technology

It achieves uniformity and stability of corrugated cardboard indentation, avoids puncture, ensures product quality of cardboard of different thicknesses, and improves the stability and adaptability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an indentation device for corrugated board processing, and relates to the technical field of paperboard processing. The device comprises a supporting frame, a conveying assembly is arranged in the supporting frame, a supporting frame is arranged on the outer side of the supporting frame, hydraulic cylinders are fixedly installed at the top and the bottom of the supporting frame, and elastic indentation assemblies are arranged at the lifting ends of the hydraulic cylinders. The two hydraulic cylinders can enable the two elastic indentation assemblies to extrude the upper side and the lower side of a corrugated board, and when the elastic indentation assemblies extrude the corrugated board, the elastic ends of the elastic indentation assemblies can provide a buffering effect, so that indentations on the corrugated board are uniform, the phenomenon of pressing penetration is avoided, and the corrugated board can be conveniently pressed. In addition, the adjusting assembly can adjust the elasticity of the elastic end of the elastic indentation assembly according to the corrugated boards with different thicknesses, so that when the corrugated boards with different thicknesses are subjected to indentation operation, the product quality can be guaranteed all the time.
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Description

A creasing device for corrugated cardboard processing Technical Field

[0001] This utility model belongs to the field of cardboard processing technology, and specifically relates to an embossing device for corrugated cardboard processing. Background Technology

[0002] Corrugated cardboard is widely used in the packaging industry due to its lightweight, sturdy, and environmentally friendly properties, such as the manufacture of cartons and packaging boxes. During the corrugated cardboard processing, in order to make the corrugated cardboard foldable into a box, a creasing device is needed to creasing the folded areas of the corrugated cardboard.

[0003] Existing creasing devices for corrugated cardboard processing typically include two creasing rollers, one above the other, which press creases into the cardboard using pressure. However, during the creasing operation, the two creasing rollers are in direct contact with the corrugated cardboard. This pressing method can easily lead to creasing on the corrugated cardboard being too deep or too shallow, and in severe cases, the creasing rollers can even penetrate the cardboard, thus easily affecting product quality.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0005] In view of the problems in the related technologies, this utility model proposes an indentation device for corrugated cardboard processing to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a creasing device for corrugated cardboard processing, including a support frame, a transport component is provided inside the support frame, a support frame is provided on the outside of the support frame, a hydraulic cylinder is fixedly installed at the top and bottom of the support frame, an elastic creasing component is provided at the lifting end of the hydraulic cylinder, an adjustment component is provided at the elastic end of the elastic creasing component, and a limit component is provided at the adjustment end of the adjustment component.

[0008] The transport component is used to transport corrugated cardboard to the processing area, the hydraulic cylinder is used to drive the elastic creasing component to move up and down so that the elastic creasing component can creasing the corrugated cardboard, the adjustment component is used to adjust the elastic force of the elastic creasing component, and the limiting component is used to limit the adjustment component at the finished adjustment end.

[0009] Furthermore, the transported component includes transport rollers, several of which are rotatably connected inside the support frame. Each of the transport rollers has a sprocket fixedly connected to its shaft end, and a chain is engaged on the outer surface of the sprocket. A transport motor is fixedly installed on the outer side of the support frame, and the output end of the transport motor is connected to the shaft end of the transport roller.

[0010] Furthermore, the elastic indentation assembly includes a T-shaped column, the lifting end of the hydraulic cylinder extends into the interior of the support frame and is fixedly connected to the T-shaped column, a connecting plate is movably connected to the outer surface of the T-shaped column, a guide rod is fixedly connected to the top of the connecting plate, a pressing plate is movably connected to the outer surface of the guide rod, the pressing plate is disposed on the outer side of the T-shaped column, a buffer spring is fixedly connected between the pressing plate and the connecting plate, and an indentation roller is disposed at the bottom of the connecting plate.

[0011] Furthermore, a support rod is fixedly connected to the bottom of the connecting plate, and the top of the indentation roller is fixedly connected to the bottom end of the support rod.

[0012] Furthermore, the adjustment assembly includes a rotating disk, which is threadedly connected to a T-shaped column. The pressing plate is disposed at the bottom of the rotating disk and movably connected to the T-shaped column. The outer surface of the rotating disk is provided with anti-slip grooves.

[0013] Furthermore, the limiting component includes a socket frame, which is fixedly connected to one side of the extrusion plate. A limiting hole is formed at the top of the socket frame, which passes through the socket frame and the rotating disk. A limiting rod is movably connected inside the limiting hole. A connecting plate is movably connected inside the socket frame. The connecting plate is fixedly connected to the limiting rod. A limiting spring is fixedly connected between the top of the connecting plate and the inner wall of the socket frame.

[0014] Furthermore, a pull plate is fixedly connected to the top of the limiting rod, and a ball bearing is provided at the bottom of the limiting rod.

[0015] Furthermore, a through groove is provided at the bottom of the inner wall of the support frame corresponding to the connecting plate, and two support plates are fixedly connected to the inner wall of the support frame, with the two support plates arranged on both sides of the indentation roller.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model uses two hydraulic cylinders to enable two elastic creasing components to press the upper and lower sides of the corrugated cardboard. Because the elastic end of the elastic creasing component can provide a buffering effect when pressing the corrugated cardboard, the creasing on the corrugated cardboard is relatively uniform and will not cause puncture. In addition, the adjustment component can adjust the elasticity of the elastic end of the elastic creasing component according to the different thicknesses of the corrugated cardboard, so that the product quality can always be guaranteed when creasing corrugated cardboard of different thicknesses.

[0018] 2. This utility model uses a pull plate to pull the limiting rod upwards, causing the limiting rod to move out of the limiting hole on the rotating disk. At this time, the rotating disk can rotate normally. After the adjustment is completed, the pull plate is released. At this time, the limiting spring pushes the limiting rod downwards through the connecting plate, causing the limiting rod to move back into the limiting hole on the rotating disk. The above setting ensures that after the elasticity of the buffer spring is adjusted, the rotating disk will not rotate arbitrarily, thus ensuring the overall stability of the device.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a schematic diagram of the external outline structure of this utility model;

[0022] Figure 2 is a schematic diagram of the rear view structure of the present invention as shown in Figure 1;

[0023] Figure 3 is a top view of the support frame structure of this utility model;

[0024] Figure 4 is a schematic diagram of the internal structure of the support frame of this utility model;

[0025] Figure 5 is a schematic diagram of the elastic indentation assembly structure of this utility model;

[0026] Figure 6 is an enlarged structural schematic diagram of point A in Figure 5 of this utility model;

[0027] Figure 7 is a schematic diagram of the limiting component structure of this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Support frame; 2. Transport assembly; 201. Transport roller; 202. Sprocket; 203. Chain; 204. Transport motor; 3. Support frame; 4. Hydraulic cylinder; 5. Elastic indentation assembly; 501. T-shaped column; 502. Connecting plate; 503. Guide rod; 504. Extrusion plate; 505. Buffer spring; 506. Indentation roller; 507. Support rod; 6. Adjustment assembly; 601. Rotating disk; 602. Anti-slip groove; 7. Limiting assembly; 701. Connecting frame; 702. Limiting hole; 703. Limiting rod; 704. Connecting disk; 705. Limiting spring; 706. Pull plate; 707. Ball bearing; 8. Through groove; 9. Support plate. Detailed Implementation

[0030] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0031] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0032] Please refer to Figures 1-7. This utility model is a creasing device for corrugated cardboard processing, including a support frame 1. A transport component 2 is provided inside the support frame 1, and a support frame 3 is provided on the outside of the support frame 1. Hydraulic cylinders 4 are fixedly installed at the top and bottom of the support frame 3. An elastic creasing component 5 is provided at the lifting end of the hydraulic cylinder 4. An adjusting component 6 is provided at the elastic end of the elastic creasing component 5. A limit component 7 is provided at the adjusting end of the adjusting component 6.

[0033] The transport component 2 is used to transport corrugated cardboard to the processing area. The hydraulic cylinder 4 is used to drive the elastic creasing component 5 to move up and down so that the elastic creasing component 5 can creasing the corrugated cardboard. The adjustment component 6 is used to adjust the elastic force of the elastic creasing component 5. The limiting component 7 is used to limit the adjustment component 6 at the finished adjustment end.

[0034] The elasticity of the elastic end of the elastic creasing component 5 is adjusted to a suitable range by adjusting component 6. Then, the corrugated cardboard is transported to the processing area by the transport component 2, so that the position of the corrugated cardboard to be creasing is inside the support frame 3. At this time, the two hydraulic cylinders 4 drive the corresponding elastic creasing components 5 to move towards the corrugated cardboard at the same time and press out the creasing at the position where it needs to be bent.

[0035] Two hydraulic cylinders 4 enable two elastic creasing components 5 to press the upper and lower sides of the corrugated cardboard. When the elastic creasing components 5 press the corrugated cardboard, their elastic ends provide a buffering effect, resulting in more uniform creasing on the corrugated cardboard without puncture. In addition, the adjusting component 6 can adjust the elasticity of the elastic ends of the elastic creasing components 5 according to the different thicknesses of the corrugated cardboard, thus ensuring product quality when creasing corrugated cardboard of different thicknesses.

[0036] In one embodiment, the transport component 2 includes a transport roller 201, a plurality of which are rotatably connected inside the support frame 1. Each of the transport rollers 201 has a sprocket 202 fixedly connected to its shaft end. A chain 203 is engaged on the outer surface of the sprocket 202. A transport motor 204 is fixedly installed on the outer side of the support frame 1. The output end of the transport motor 204 is connected to the shaft end of the transport roller 201.

[0037] By driving the transport motor 204, one of the transport rollers 201 is rotated. The rotating transport roller 201 drives all the transport rollers 201 to rotate through the sprocket 202 and the chain 203. Then, the corrugated cardboard is placed on the transport roller 201. At this time, several transport rollers 201 cooperate to transport the corrugated cardboard to the processing area.

[0038] In one embodiment, the elastic indentation assembly 5 includes a T-shaped column 501, the lifting end of the hydraulic cylinder 4 extends into the interior of the support frame 3 and is fixedly connected to the T-shaped column 501, a connecting plate 502 is movably connected to the outer surface of the T-shaped column 501, a guide rod 503 is fixedly connected to the top of the connecting plate 502, a pressing plate 504 is movably connected to the outer surface of the guide rod 503, the pressing plate 504 is disposed on the outside of the T-shaped column 501, a buffer spring 505 is fixedly connected between the pressing plate 504 and the connecting plate 502, and an indentation roller 506 is disposed at the bottom of the connecting plate 502.

[0039] Once the corrugated cardboard is moved to the designated area, the two hydraulic cylinders 4 are activated simultaneously. At this time, the two T-shaped columns 501 drive the corresponding connecting plates 502 to move towards the corrugated cardboard, causing the creasing rollers 506 on the two connecting plates 502 to press the corrugated cardboard. During this process, the connecting plates 502 press the buffer springs 505 and continuously slide on the outer surface of the T-shaped columns 501, thus ensuring that the indentations on the corrugated cardboard are uniform and that there is no puncture. When the connecting plates 502 move, they can drive the guide rods 503 to slide on the pressing plate 504. Under the guidance of the guide rods 503, the stability of the connecting plates 502 during sliding is guaranteed.

[0040] In one embodiment, for the connecting plate 502, a support rod 507 is fixedly connected to the bottom of the connecting plate 502, and the top of the indentation roller 506 is fixedly connected to the bottom end of the support rod 507.

[0041] With the support of the support rod 507, there is a certain distance between the indentation roller 506 and the connecting plate 502. This arrangement ensures that the indentation roller 506 will not cause obstruction when the connecting plate 502 slides on the T-shaped column 501.

[0042] In one embodiment, the adjustment component 6 includes a rotating disk 601, which is threadedly connected to a T-shaped column 501. The pressing plate 504 is disposed at the bottom of the rotating disk 601 and is movably connected to the T-shaped column 501. The outer surface of the rotating disk 601 is provided with an anti-slip groove 602.

[0043] By rotating the rotating disk 601, the rotating disk 601 can move downward on the T-shaped column 501. The rotating disk 601 of the moving cylinder can push the extrusion plate 504 downward, thereby adjusting the distance between the extrusion plate 504 and the connecting plate 502. At the same time, the buffer spring 505 set between the extrusion plate 504 and the connecting plate 502 can be compressed, and the overall elastic force of the buffer spring 505 can be adjusted. The anti-slip groove 602 makes it less likely for the hand to slip when rotating the rotating disk 601.

[0044] In one embodiment, the limiting component 7 includes a socket 701, which is fixedly connected to one side of the extrusion plate 504. A limiting hole 702 is formed at the top of the socket 701, which passes through the socket 701 and the rotating disk 601. A limiting rod 703 is movably connected inside the limiting hole 702. A connecting plate 704 is movably connected inside the socket 701, and the connecting plate 704 is fixedly connected to the limiting rod 703. A limiting spring 705 is fixedly connected between the top of the connecting plate 704 and the inner wall of the socket 701.

[0045] When the rotating disk 601 is rotated, the limiting rod 703 is pulled upward, allowing it to move out of the limiting hole 702 on the rotating disk 601, thus enabling the rotating disk 601 to rotate normally. After adjustment, the limiting rod 703 is released, and the limiting spring 705 pushes the limiting rod 703 downward through the connecting plate 704, allowing it to move back into the limiting hole 702 on the rotating disk 601. This arrangement ensures that the rotating disk 601 will not rotate arbitrarily after the spring force of the buffer spring 505 is adjusted, thus guaranteeing the overall stability of the device.

[0046] In one embodiment, for the aforementioned limiting rod 703, a pull plate 706 is fixedly connected to the top end of the limiting rod 703, and a ball bearing 707 is provided at the bottom end of the limiting rod 703.

[0047] The limiting rod 703 can be pulled by the pull plate 706. When the pull plate 706 is released, if the limiting rod 703 does not align with the limiting hole 702 on the rotating disk 601, the ball bearing 707 can come into contact with the rotating disk 601. At this time, it is only necessary to rotate the rotating disk 601 and make the ball bearing 707 roll on the rotating disk 601. When the limiting hole 702 on the rotating disk 601 aligns with the limiting rod 703, the limiting rod 703 can automatically fall into the limiting hole 702 on the rotating disk 601 under the push of the limiting spring 705, thereby completing the limiting of the rotating disk 601. The setting of the ball bearing 707 makes the friction between the limiting rod 703 and the rotating disk 601 small when the rotating disk 601 is finely adjusted.

[0048] In one embodiment, for the support frame 1, a through groove 8 is provided at the bottom of the inner wall of the support frame 1 corresponding to the connecting plate 502, and two support plates 9 are fixedly connected to the inner wall of the support frame 1. The two support plates 9 are arranged on both sides of the indentation roller 506.

[0049] The lower creasing roller 506 can be moved into the support frame 1 through the through groove 8. This arrangement allows the lower creasing roller 506 to make normal contact with the lower side of the corrugated cardboard. The support plate 9 can support the two sides of the corrugated cardboard that need to be creasing, so that the overall stability of the corrugated cardboard can be guaranteed when the two creasing rollers 506 are performing creasing operations on the corrugated cardboard.

[0050] Through the above technical solution, 1. Two hydraulic cylinders 4 enable two elastic creasing components 5 to press the upper and lower sides of the corrugated cardboard. Because the elastic end of the elastic creasing component 5 provides a buffering effect when pressing the corrugated cardboard, the creasing on the corrugated cardboard is relatively uniform and does not cause punctures. Furthermore, the adjusting component 6 can adjust the elasticity of the elastic end of the elastic creasing component 5 according to the different thicknesses of the corrugated cardboard, thus ensuring product quality during creasing operations on corrugated cardboard of different thicknesses; 2. The pull plate 706 moves upwards... Pulling the limiting rod 703 causes it to move out of the limiting hole 702 on the rotating disk 601, allowing the rotating disk 601 to rotate normally. After adjustment, releasing the pull plate 706 causes the limiting spring 705 to push the limiting rod 703 downwards via the connecting plate 704, causing it to move back into the limiting hole 702 on the rotating disk 601. This setup ensures that the rotating disk 601 will not rotate arbitrarily after the spring force of the buffer spring 505 is adjusted, thus guaranteeing the overall stability of the device.

[0051] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A creasing device for corrugated cardboard processing, comprising a support frame (1), characterized in that, The support frame (1) is equipped with a transport component (2) inside, and a support frame (3) is equipped with a support frame (3) on the outside of the support frame (1). A hydraulic cylinder (4) is fixedly installed at the top and bottom of the support frame (3). An elastic creasing component (5) is provided at the lifting end of the hydraulic cylinder (4). An adjustment component (6) is provided at the elastic end of the elastic creasing component (5). A limit component (7) is provided at the adjustment end of the adjustment component (6). The transport component (2) is used to transport the corrugated cardboard to the processing area. The hydraulic cylinder (4) is used to drive the elastic creasing component (5) to lift and lower so that the elastic creasing component (5) can creasing the corrugated cardboard. The adjustment component (6) is used to adjust the elastic force of the elastic creasing component (5). The limit component (7) is used to limit the adjustment component (6) at the adjustment end.

2. The creasing device for corrugated cardboard processing according to claim 1, characterized in that, The transport assembly (2) includes transport rollers (201), and several transport rollers (201) are rotatably connected inside the support frame (1). The shaft ends of several transport rollers (201) are fixedly connected to sprockets (202). The outer surface of the sprockets (202) is engaged with chains (203). A transport motor (204) is fixedly installed on the outside of the support frame (1), and the output end of the transport motor (204) is connected to the shaft ends of the transport rollers (201).

3. The creasing device for corrugated cardboard processing according to claim 1, characterized in that, The elastic indentation assembly (5) includes a T-shaped column (501), the lifting end of the hydraulic cylinder (4) extends into the interior of the support frame (3) and is fixedly connected to the T-shaped column (501), a connecting plate (502) is movably connected to the outer surface of the T-shaped column (501), a guide rod (503) is fixedly connected to the top of the connecting plate (502), a pressing plate (504) is movably connected to the outer surface of the guide rod (503), the pressing plate (504) is disposed on the outside of the T-shaped column (501), a buffer spring (505) is fixedly connected between the pressing plate (504) and the connecting plate (502), and an indentation roller (506) is disposed at the bottom of the connecting plate (502).

4. The creasing device for corrugated cardboard processing according to claim 3, characterized in that, The bottom of the connecting plate (502) is fixedly connected to a support rod (507), and the top of the indentation roller (506) is fixedly connected to the bottom of the support rod (507).

5. The creasing device for corrugated cardboard processing according to claim 3, characterized in that, The adjustment component (6) includes a rotating disk (601), which is threadedly connected to a T-shaped column (501). The pressing plate (504) is disposed at the bottom of the rotating disk (601) and is movably connected to the T-shaped column (501). The outer surface of the rotating disk (601) is provided with an anti-slip groove (602).

6. The creasing device for corrugated cardboard processing according to claim 5, characterized in that, The limiting component (7) includes a socket (701), which is fixedly connected to one side of the extrusion plate (504). A limiting hole (702) is provided on the top of the socket (701). The limiting hole (702) passes through the socket (701) and the rotating disk (601). A limiting rod (703) is movably connected inside the limiting hole (702). A connecting plate (704) is movably connected inside the socket (701). The connecting plate (704) is fixedly connected to the limiting rod (703). A limiting spring (705) is fixedly connected between the top of the connecting plate (704) and the inner wall of the socket (701).

7. The creasing device for corrugated cardboard processing according to claim 6, characterized in that, The top end of the limiting rod (703) is fixedly connected to a pull plate (706), and the bottom end of the limiting rod (703) is provided with a ball bearing (707).

8. The creasing device for corrugated cardboard processing according to claim 3, characterized in that, The bottom of the inner wall of the support frame (1) is provided with a through groove (8) corresponding to the connecting plate (502). Two support plates (9) are fixedly connected to the inner wall of the support frame (1). The two support plates (9) are arranged on both sides of the indentation roller (506).