Mold for automatic cutting and punching processing and fixing of special-shaped corrugated paperboard

Abstract

The utility model provides a kind of mould for special-shaped corrugated paperboard automatic cutting and punching processing fixation, two groups of telescopic driving devices are equipped on the end surface of template and support frame, the moving part of telescopic driving device is fixed with seat plate, and the outer end surface of seat plate is equipped with flexible clamping component, and under the drive of telescopic driving device, seat plate drives flexible clamping component to move outward or inward, realize the special-shaped corrugated carton on the outer periphery of base with corresponding side corrugated paperboard inner wall is tightly fixed.The utility model solves the problem of poor adaptability of traditional mould, frequent replacement is needed, guarantees the stability of special-shaped corrugated paperboard in cutting and punching process, effectively avoids displacement and corrugation damage, provides guarantee for high-precision processing of special-shaped corrugated paperboard, simple structure, reasonable in design, provides conditions for reliable fixation of special-shaped corrugated paperboard for carton automatic cutting and punching machine, realizes the stable fixation of special-shaped corrugated paperboard of different shape and size, simplifies operation, improves processing efficiency, reduces enterprise cost.

Description

Technical Field

[0001] This utility model belongs to the field of box processing technology, specifically relating to a mold for automatic cutting, punching and fixing of irregularly shaped corrugated cardboard. Background Technology

[0002] In corrugated cardboard box processing, automated mechanical cutting and punching are the core processes for achieving large-scale, high-precision production of corrugated cardboard boxes. Their processing quality directly determines the forming accuracy, structural strength, and subsequent packaging performance of the corrugated cardboard boxes. During this process, due to the multi-layered paper composite structure of corrugated cardboard, different flute types (such as A-flute, B-flute, C-flute, E-flute, etc.) result in variations in the overall rigidity and compressive strength of the cardboard. Furthermore, the cutting tools and punches exert continuous transverse shearing force and longitudinal pressure on the cardboard during processing. If the corrugated cardboard is not stably and reliably fixed, problems such as cardboard displacement and localized flattening of flutes can easily occur. The transverse shearing force and longitudinal pressure can cause cutting trajectory deviations and punching position deviations, resulting in the processed cardboard dimensions exceeding tolerances and failing to meet the assembly requirements of subsequent carton forming, directly leading to a higher product scrap rate. If the fixing method is too rigid or the pressure control is improper, it will damage the cushioning structure of the corrugated cardboard, reducing the carton's load-bearing and impact resistance, and affecting the protective performance of the final packaged product. Therefore, stably fixing the corrugated carton to a dedicated mold is a crucial prerequisite for ensuring the accuracy of automated mechanical cutting and punching, and for guaranteeing the quality of the corrugated carton product.

[0003] The existing automatic cutting and punching molds for corrugated cardboard are traditional fixed designs. The positions and angles of the fixed accessories (positioning blocks, clamping components, etc.) are not adjustable, and they can only be adapted to a single shape of cardboard. They cannot meet the diverse needs of cartons. When processing cartons of different shapes, frequent disassembly and replacement of molds are required, which increases labor intensity, extends process time, reduces efficiency, and increases enterprise costs. Therefore, it is necessary to improve these issues. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a mold for the automatic cutting and punching of irregularly shaped corrugated cardboard. By setting a telescopic drive device with flexible clamping components on the template and the support frame fixed on the template, the inner wall of the corresponding side of the irregularly shaped corrugated cardboard covering the outer perimeter of the base is pressed and fixed. This solves the problems of poor adaptability and frequent replacement required by traditional molds. At the same time, it ensures the stability of the irregularly shaped corrugated cardboard during the cutting and punching process, effectively avoids displacement and damage to the flute, and provides a guarantee for high-precision processing of irregularly shaped corrugated cardboard. The structure is simple and the design is reasonable. It provides conditions for the reliable fixing of irregularly shaped corrugated cardboard by the automatic carton cutting and punching machine, realizes the stable fixing of irregularly shaped corrugated cardboard of different shapes and sizes, and simplifies operation, improves processing efficiency, and reduces enterprise costs.

[0005] The technical solution adopted in this utility model is as follows: a mold for automatic cutting, punching and fixing of irregular corrugated cardboard, including a base and a template fixed in the center on the base. A support frame is fixed on the template, and two sets of telescopic drive devices are provided on the upper end face of both the template and the support frame. The moving part of the telescopic drive device is fixed with a seat plate, and a flexible clamping component is provided on the outer end face of the seat plate. Under the drive of the telescopic drive device, the seat plate drives the flexible clamping component to move outward or inward, so as to press and fix the inner wall of the corrugated cardboard on the corresponding side of the irregular corrugated cardboard box covering the outer periphery of the base.

[0006] The telescopic drive device is a linear slide assembly, the seat plate has an L-shaped plate structure, the flexible clamping assembly is disposed on the vertical plate facing outward of the seat plate, and the horizontal plate of the seat plate is fixed to the upper end surface of the slide seat of the linear slide assembly.

[0007] Furthermore, the two sets of telescopic drive devices on the upper end face of the template and support frame are symmetrically distributed in space, rotated 180°.

[0008] Furthermore, the flexible clamping assembly includes a base plate, a buffer layer, and an anti-slip layer. A pressure sensor with its right end penetrating the plate surface is fixed on the vertical plate of the seat plate, and the base plate is fixed to the right end of the pressure sensor. A buffer layer is fixed on the base plate, and an anti-slip layer is fixed on the buffer layer for direct contact with the inner wall of the corrugated cardboard on the corresponding side of the irregular corrugated cardboard box.

[0009] Furthermore, the buffer layer is a silicone buffer layer with a thickness of 5mm.

[0010] Furthermore, the anti-slip layer is a polyurethane anti-slip layer with a diamond-patterned outer surface.

[0011] Furthermore, the support frame includes a mounting plate and legs, with legs fixed at all four corners of the bottom surface of the mounting plate, and the lower ends of the legs fixed to the template.

[0012] Advantages of this utility model compared to the prior art: 1. This technical solution uses a telescopic drive device to drive the flexible clamping component to move in and out, which can adapt to corrugated cardboard of different shapes and sizes, eliminating the need for frequent mold changes and solving the problem of poor adaptability of existing molds. 2. The flexible clamping component of this technical solution uses a buffer layer and an anti-slip layer that contacts the inner wall of the cardboard to prevent slippage. Combined with a pressure sensor to control the clamping force, the flexible fixing structure ensures reliable fixing of the cardboard while avoiding cardboard displacement and corrugation damage, thereby improving processing accuracy under the premise of reliable fixing. 3. The telescopic drive device in this technical solution adopts a linear slide assembly driven by a servo motor, which provides the conditions for the PLC in the automatic carton cutting and punching machine to connect with the servo motor and pressure sensor to realize the automatic adjustment and clamping force monitoring of the linear slide assembly. It eliminates the need to customize multiple sets of molds for different cartons, thereby reducing mold procurement costs. The mechanized fixing structure simplifies the operation process and reduces labor costs and operational errors. 4. This technical solution has a simple structure and novel design, which reduces the difficulty of fixing irregularly shaped corrugated cardboard. It is compatible with fixing corrugated cardboard of various flute types such as A-flute, B-flute, C-flute and E-flute, and meets the needs of different packaging scenarios. Attached Figure Description

[0013] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a top view of the structure of this utility model. Detailed Implementation

[0014] The following will refer to the embodiments of this utility model. Figure 1-2 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention 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 of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0017] Molds used for automatic cutting, punching, and fixing of irregularly shaped corrugated cardboard, such as Figure 1-2 As shown, the structure includes a base 1 and a template 2 centrally fixed on the base 1. A support frame 3 is fixed on the template 2, and both the template 2 and the support frame 3 have two sets of telescopic drive devices on their upper surfaces. The moving part of the telescopic drive device is fixed to a seat plate 4, and the outer end surface of the seat plate 4 is provided with a flexible clamping component. Under the drive of the telescopic drive device, the seat plate 4 moves outward or inward, thereby pressing and fixing the inner wall of the corrugated cardboard on the corresponding side of the irregularly shaped corrugated cardboard box covering the outer periphery of the base 1. In the above structure, by setting flexible clamping components on the template 2 and the support frame 3 fixed on the template 2, the structure achieves the desired effect. The telescopic drive device enables the corrugated cardboard of the irregularly shaped corrugated carton, which is covered by the base 1, to be pressed tightly against and fixed to the inner wall of the corresponding side of the corrugated cardboard. This solves the problems of poor adaptability and frequent replacement of traditional molds. At the same time, it ensures the stability of the irregularly shaped corrugated cardboard during the cutting and punching process, effectively avoids displacement and damage to the flute, and provides a guarantee for the high-precision processing of irregularly shaped corrugated cardboard. The structure is simple and the design is reasonable. It provides the conditions for the automatic carton cutting and punching machine to reliably fix irregularly shaped corrugated cardboard, realizes the stable fixing of irregularly shaped corrugated cardboard of different shapes and sizes, and simplifies operation, improves processing efficiency and reduces enterprise costs.

[0018] The specific structure of the telescopic drive device is as follows: the telescopic drive device is a linear slide assembly 5, the base plate 4 has an L-shaped plate structure, the flexible clamping component is set on the vertical plate facing outward of the base plate 4, and the horizontal plate of the base plate 4 is fixed to the upper end face of the slide base 5-1 of the linear slide assembly 5; in the above structure, the telescopic drive device adopts a linear slide assembly 5 driven by a servo motor, which provides the conditions for the automatic adjustment of the linear slide assembly by connecting the PLC and the servo motor in the automatic carton cutting and punching machine, eliminating the need to customize multiple sets of molds for different cartons, thus reducing mold procurement costs; the mechanized fixing structure simplifies the operation process and reduces labor costs and operating errors; The template 2 and the support frame 3 have two sets of telescopic drive devices on their upper surfaces that are symmetrically distributed by rotating 180° in space. The flexible clamping components are moved in and out by the telescopic drive devices, which can adapt to corrugated cardboard of different shapes and sizes. This eliminates the need for frequent mold replacements and solves the problem of poor adaptability of existing molds.

[0019] The specific structure of the flexible clamping assembly is as follows: The flexible clamping assembly includes a base plate 6, a buffer layer 7, and an anti-slip layer 8. A pressure sensor 9 is fixed on the vertical plate of the seat plate 4, penetrating the plate surface at its right end. The pressure sensor 9 provides the conditions for the PLC in the automatic carton cutting and punching machine to connect with the pressure sensor 9 to monitor the clamping force when the linear slide assembly is automatically adjusted and clamped. The pressure sensor 9 is model NS-WL01, with a range of 0-500N and an accuracy of ±1%, and collects clamping force data in real time. When the pressure reaches the set threshold (preset according to the cardboard thickness, such as 100N-300N), the PLC connected to it can automatically cut off the power supply of the servo motor to avoid overpressure causing the cardboard to crush. The base plate 6 is a stainless steel base plate, which is fixed to the right end of the pressure sensor 9. A 5mm thick silicone material is fixed on the base plate 6. The buffer layer 7, made of silicone, has a Shore hardness of 30A and high elasticity. It can deform with the curvature of the cardboard, disperse the clamping force, avoid damage to the cardboard, and ensure the quality of the cardboard. An anti-slip layer 8 is fixed on the buffer layer 7 for direct contact with the inner wall of the corrugated cardboard on the corresponding side of the irregularly shaped corrugated box. The anti-slip layer 8 is a polyurethane anti-slip layer with a diamond-patterned outer surface. The polyurethane anti-slip layer has a Shore hardness of 50A and a diamond-patterned surface, which improves the coefficient of friction compared to traditional rubber pads and effectively prevents slippage caused by processing vibration. In the above structure, the flexible clamping assembly, through the buffer layer 7 and the anti-slip layer 8 in contact with the inner wall of the cardboard, works with a pressure sensor 9 to control the clamping force. This flexible fixing structure ensures reliable fixing of the cardboard while avoiding cardboard displacement and corrugation damage, improving processing accuracy under the premise of reliable fixing. The specific structure of the support frame 3 is as follows: The support frame 3 includes a mounting plate 3-1 and legs 3-2. The four corners of the bottom surface of the mounting plate 3-1 are fixed with legs 3-2, and the lower ends of the legs 3-2 are fixed to the template 2. In order to reliably fix corrugated cardboard of different heights, rod-shaped legs 3-2 with external threads at the lower end can also be used, so that the lower end of the legs 3-2 passes through the corresponding through hole on the template 2. Nuts are set above and below the through hole of the template 2 to fit and connect with the legs 3-2. The height of the legs 3-2 is fixed when it is adjusted, thereby realizing the height adjustment of the support frame 3 and meeting the fixing of corrugated cardboard boxes of different sizes and shapes on the automatic cardboard cutting and punching machine.

[0020] Example 1: The irregular corrugated cardboard has a rectangular structure with dimensions of 1000mm long × 800mm wide × 600mm high. The flute type is B flute (with high rigidity and a preset clamping force of 180N). Equipment installation: Fix base 1 to the worktable of the automatic carton cutting and punching machine, fix template 2 to base 1 in the center with bolts, and fix the lower end of the support legs 3-2 of support frame 3 to template 2; Component assembly: Two sets of linear slide assembly 5 (stroke 300mm) are installed on the upper surface of template 2. Two sets of linear slide assembly 5 are also installed on the upper surface of mounting plate 3-1 of support frame 3. The four sets of linear slide assembly 5 are symmetrically distributed at 180°. The horizontal plate of seat plate 4 (L-shaped, horizontal plate size 150mm×100mm, vertical plate size 150mm×120mm) is fixed to slide seat 5-1 with bolts. Pressure sensor 9 (range 0-500N) is fixed to the outside of vertical plate of seat plate 4. Base plate 6 (size 120mm×100mm) is fixed to the end of pressure sensor 9. 5mm thick silicone buffer layer 7 is pasted on the outside of base plate 6. 2mm thick diamond-patterned polyurethane anti-slip layer 8 is pasted on the outside of buffer layer 7. Cardboard fixing: Place the rectangular corrugated cardboard around the outer perimeter of the base 1, start the servo motor of the linear slide assembly 5 to drive the slide base 5-1 to move outward, and move the base plate 4 and the flexible clamping assembly closer to the inner wall of the cardboard; when the anti-slip layer 8 contacts the inner wall of the cardboard, the pressure sensor 9 monitors the clamping force in real time. When the clamping force reaches 180N, control the servo motor to stop running, and complete the cardboard fixing. Processing and Reset: After the automatic cardboard cutting and punching machine is started and the processing is completed, the linear slide assembly 5 drives the flexible clamping assembly to reset inward, remove the processed cardboard, and proceed to the next batch of processing.

[0021] Example 2: Fixing of trapezoidal corrugated cardboard. The corrugated cardboard has a trapezoidal structure with an upper base of 600mm × lower base of 1000mm × height of 700mm. The flute type is A-flute (with excellent cushioning and a preset clamping force of 120N).

[0022] Cardboard fixing: Place the trapezoidal corrugated cardboard around the base 1, start the linear slide assembly 5, the flexible clamping assembly moves outward along the preset stroke, the pressure sensor 9 monitors the clamping force, when the clamping force of the four sensors reaches 120N, the servo motor in the linear slide assembly 5 stops, and the fixing is completed. Processing verification: During the processing, the position of the cardboard was monitored, and the results showed that the cutting trajectory deviation was ≤0.08mm and the punching position deviation was ≤0.04mm, which met the processing accuracy requirements of trapezoidal cartons.

[0023] This technical solution has a simple structure and novel design, which reduces the difficulty of fixing irregularly shaped corrugated cardboard. It is compatible with fixing corrugated cardboard of various flute types such as A-flute, B-flute, C-flute and E-flute, and meets the needs of different packaging scenarios.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mold for automatic cutting and punching of irregularly shaped corrugated cardboard, comprising a base (1) and a template (2) centrally fixed on the base (1), characterized in that: The template (2) is fixed with a support frame (3), and the upper surfaces of the template (2) and the support frame (3) are provided with two sets of telescopic drive devices. The moving part of the telescopic drive device is fixed with a seat plate (4), and the outer end face of the seat plate (4) is provided with a flexible clamping component. Under the drive of the telescopic drive device, the seat plate (4) drives the flexible clamping component to move outward or inward, so as to press and fix the inner wall of the corrugated cardboard corresponding to the irregular corrugated cardboard box covering the outer periphery of the base (1).

2. The mold for automatic cutting, punching, and fixing of irregularly shaped corrugated cardboard according to claim 1, characterized in that: The telescopic drive device is a linear slide assembly (5), the seat plate (4) has an L-shaped plate structure, the flexible clamping assembly is set on the vertical plate facing outward of the seat plate (4), and the horizontal plate of the seat plate (4) is fixed to the upper end face of the slide seat (5-1) of the linear slide assembly (5).

3. The die for automatic cutting and punching processing fixation of special-shaped corrugated paperboard according to claim 1, characterized in that: The two sets of telescopic drive devices on the upper surface of the template (2) and the support frame (3) are symmetrically distributed in space, rotating 180°.

4. The mold for automatic cutting and punching processing fixation of special-shaped corrugated paperboard according to claim 1, characterized in that: The flexible clamping assembly includes a base plate (6), a buffer layer (7) and an anti-slip layer (8). A pressure sensor (9) with its right end penetrating the plate surface is fixed on the vertical plate of the seat plate (4), and the base plate (6) is fixed to the right end of the pressure sensor (9). A buffer layer (7) is fixed on the base plate (6), and an anti-slip layer (8) is fixed on the buffer layer (7) for direct contact with the inner wall of the corrugated cardboard on the corresponding side of the irregular corrugated cardboard box.

5. The mold for automatic cutting and punching processing fixation of special-shaped corrugated paperboard according to claim 4, characterized in that: The buffer layer (7) is a silicone buffer layer with a thickness of 5 mm.

6. The mold for automatic cutting, punching, and fixing of irregularly shaped corrugated cardboard according to claim 5, characterized in that: The anti-slip layer (8) is a polyurethane anti-slip layer with a diamond-patterned outer surface.

7. The mold for automatic cutting, punching, and fixing of irregularly shaped corrugated cardboard according to any one of claims 1-6, characterized in that: The support frame (3) includes a mounting plate (3-1) and legs (3-2). The four corners of the bottom surface of the mounting plate (3-1) are fixed with legs (3-2), and the lower ends of the legs (3-2) are fixed to the template (2).

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