A cutting device for carton production

Abstract

The utility model relates to a kind of cutting device for packaging carton production, including cutting table, cutting table top is equipped with locating plate, the both sides of locating plate are equipped with mounting bracket, mounting bracket extends towards center direction and is equipped with hydraulic cylinder in top, and the output end of hydraulic cylinder is fixedly connected with mounting plate, the bottom surface of mounting plate is equipped with mounting groove, each mounting groove is embedded with mould seat, and multiple mould seat bottoms are respectively equipped with cutting tool, the inside of mounting groove is also equipped with locking assembly, locking assembly extends towards center direction and is closely combined with mould seat side wall;The utility model adopts modular design, the tool is combined with single mould seat, the plugboard of mould seat can be positioned along the guide sliding slot Quick insertion, without disassembling bolt one by one, and buffer and elastic pad can absorb installation alignment deviation, avoid tool and mould seat collision damage, can be separated by on-off electromagnet Realization mould seat's quick adsorption fixation or, single tool replacement is faster, and the flexibility of change type is significantly enhanced.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box production equipment technology, specifically to a cutting device for producing packaging cardboard boxes. Background Technology

[0002] In logistics, transportation, and product packaging, the demand for cardboard boxes continues to grow due to their low cost and high recyclability. The cutting process, as a core step in cardboard box production, directly determines the quality of the finished product and production efficiency through its precision and efficiency. With the increasing demand in the packaging industry for diverse cardboard box specifications (such as different sizes and thicknesses), existing cardboard box cutting equipment is gradually revealing numerous technical shortcomings, making it difficult to meet the requirements of industrialized, high-precision production. Specific problems are as follows: 1. In existing equipment, the mold base and cutting blades are mostly rigidly fixed by multiple sets of bolts. When changing to different specifications of blades (such as straight blades and irregular blades), the bolts must be removed one by one, and a single replacement usually takes more than 15 minutes, which seriously affects the continuity of production. Moreover, the lack of guiding and buffering structures during the installation of the mold base makes it easy for the blade to collide with the mold base due to misalignment, resulting in blade breakage or mold base deformation, increasing the cost of consumable replacement. At the same time, most equipment does not have an independent blade switching control mechanism. When multi-track cutting is required (such as edge cutting and hole cutting of the same carton), the position of the entire mold base must be adjusted, which is cumbersome, has poor adaptability, and is difficult to meet the needs of rapid changeover of multi-specification cartons. 2. Packaging cartons vary widely in thickness (commonly 3mm-20mm, such as single-layer corrugated paper and multi-layer composite corrugated paper). Existing cutting equipment lacks precise blade height adjustment components, relying heavily on operator experience to manually adjust the blade position. This adjustment process lacks quantitative reference standards, easily leading to problems like "incomplete cut" (thick cartons are not cut thoroughly, requiring secondary processing) or "overcut" (the blade damages the cutting table surface when cutting thin cartons). Industry statistics show that the rework rate due to such improper thickness matching is approximately 10%, wasting raw materials, extending production cycles, and increasing enterprise production costs.

[0003] In summary, existing packaging carton cutting devices have significant shortcomings in terms of positioning stability, tool adaptability, thickness compatibility, and safety monitoring, which restrict cutting efficiency and finished product quality and cannot meet the packaging industry's needs for high-precision, automated, and multi-specification production. Therefore, developing a packaging carton cutting device with accurate positioning, convenient tool switching, strong thickness adaptability, and safety monitoring functions has become an urgent technical problem to be solved in the industry. Utility Model Content

[0004] Based on the above description, this utility model provides a cutting device for packaging carton production, which solves the shortcomings of existing cutting equipment that mostly use bolts to directly fix the tool to the cutting plate, resulting in difficulties in subsequent disassembly and assembly, and the lack of height adjustment function for the installed cutter, which easily affects the production quality.

[0005] This utility model is achieved through the following technical solution: A cutting device for producing packaging cartons includes a cutting table, a positioning plate on the top surface of the cutting table, mounting brackets on both sides of the positioning plate, the mounting brackets extending towards the center and having a hydraulic cylinder at the top, a mounting plate fixedly connected to the output end of the hydraulic cylinder, a mounting groove on the bottom surface of the mounting plate, a mold base embedded in each mounting groove, and a cutting tool respectively equipped at the bottom of multiple mold bases, and a locking component inside the mounting groove, the locking component extending towards the center and tightly fitting against the side wall of the mold base.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the positioning plate is rectangular and has several suction holes on its top surface, all of which are connected to the interior of the positioning plate. A vacuum pump is provided at the bottom of the cutting table, and the vacuum pump is connected to the interior of the positioning plate through a vacuum tube. A padding layer is also provided on the top surface of the positioning plate.

[0008] Furthermore, the locking assembly includes a buffer member disposed on the inner sidewall of the mounting groove. A limit plate is fixedly mounted on the surface of the buffer member, and a guide groove is provided on the end face of the limit plate. The mold base is configured as a U-shaped structure, and an insert plate is provided on the sidewall of the protruding part of the top surface of the mold base. The insert plate is adapted to the guide groove and slidably inserted into the inside of the mounting groove. An elastic pad is also provided on the top surface of the protruding part of the mold base, and the elastic pad is tightly fitted to the bottom surface of the mounting groove.

[0009] Furthermore, each of the protruding portions of the mold base is provided with a metal plate, and the positioning plate is provided with a plurality of electromagnets. Each electromagnet is embedded in the center of the bottom surface of the mounting groove. The plurality of electromagnets are electrically connected to an external power supply line through wires, and each electromagnet is equipped with a control switch.

[0010] Furthermore, the positioning plate is equipped with a pressure sensor, and a controller and an audible and visual alarm device are fixedly installed on the outer wall of the cutting table. The pressure sensor is electrically connected to the signal input terminal of the controller through a shielded wire. The signal output terminal of the controller is electrically connected to the audible and visual alarm device, the control switch, and the control terminal of the hydraulic cylinder, respectively. The controller is also equipped with a touch screen display.

[0011] Furthermore, a height adjustment assembly is provided between the mold base and the cutting tool. The height adjustment assembly includes an adjustment sleeve fixed to the bottom of the mold base, an adjustment rod slidably inserted into the adjustment sleeve, and a locking bolt penetrating the side wall of the adjustment sleeve. The top of the cutting tool is fixedly connected to the bottom end of the adjustment rod. The outer side wall of the adjustment sleeve is engraved with millimeter-level scale lines along the height direction. The locking bolt is threadedly connected to the adjustment sleeve and its end is tightly abutted against the side wall of the adjustment rod.

[0012] Furthermore, the vacuum tube is equipped with an electromagnetic valve and a pressure sensor.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. This application improves upon existing carton cutting equipment by adopting a modular design that combines the cutting tool with a single mold base. The mold base's insert plate can be quickly inserted and positioned along the guide groove without disassembling the bolts one by one. Furthermore, the buffer and elastic pad can absorb installation misalignment and prevent collision damage between the cutting tool and the mold base. The design of "molded base metal plate + corresponding electromagnet + individual control switch" allows for rapid adsorption, fixation, or separation of the mold base by switching the electromagnet on and off. The time for a single cutting tool replacement is reduced to less than 3 minutes, improving efficiency by 80% compared to existing devices. Moreover, the feature of independent control of multiple sets of electromagnets supports selective activation of different cutting tools in the same cutting process (such as activating only the edge cutting tool or the hole cutting tool). It can meet the multi-track cutting needs of various carton specifications without the need for overall mold base adjustment, significantly enhancing the flexibility of model changeover. 2. In this application, the adjusting rod can slide along the adjusting sleeve, achieving quantitative adjustment of the blade height in 0.1mm increments with the help of scale lines. This allows for precise adaptation to various types of cardboard boxes with thicknesses ranging from 3mm to 20mm (from single-layer corrugated paper to multi-layer composite corrugated paper). Furthermore, the tight-fitting structure of the locking bolt ensures a stable blade position after adjustment, preventing issues like incomplete cuts or overcuts caused by blade displacement during the cutting process. Compared to the existing device's 10% rework rate, this device, through precise thickness adaptation, can control the rework rate to below 2%, reducing raw material waste, shortening the production cycle, and lowering enterprise production costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the cutting table structure in this embodiment; Figure 2 This is a schematic diagram of the mounting plate and mold base in this embodiment; Figure 3 This is a schematic diagram of the mounting slot and locking assembly in this embodiment; Figure 4 This is a schematic diagram of the structure of the mold base and cutting tool in this embodiment; Figure 5 This is a schematic diagram of the height adjustment component in this embodiment; The components include: 1. Cutting table; 11. Positioning plate; 12. Vacuum tube; 2. Mounting bracket; 21. Mounting plate; 22. Mounting groove; 23. Mold base; 3. Locking assembly; 31. Buffer; 32. Limiting plate; 33. Electromagnet; 4. Height adjustment assembly; 41. Adjusting sleeve; 42. Adjusting rod; 43. Locking bolt; 5. Cutting blade. Detailed Implementation

[0015] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0017] Combination Figure 1-5 As shown, a cutting device for producing packaging cartons includes: The cutting table 1 serves as the installation base for the entire cutting equipment. It is rectangular and has a positioning plate 11 at the center of its top surface. The positioning plate 11 is used to assist in fixing the cardboard. The side wall of the positioning plate 11 should also be equipped with a clamp for calibration and positioning. Alternatively, the cardboard can be calibrated and positioned by an external positioning device. The positioning plate 11 can also be set to a size that is compatible with the cardboard, and the area of ​​the cardboard should be larger than the area required for cutting. Mounting bracket 2 is set on both sides of the top surface of cutting table 1, and the mounting bracket 2 extends towards the center and has a hydraulic cylinder on the top surface of the positioning plate 11, with the output end of the hydraulic cylinder arranged vertically downward. Mounting plate 21 has a bottom with a hydraulic cylinder output end and is fixedly connected. Several mounting slots 22 are provided on its bottom surface. Each mounting slot 22 is fitted with a mold base 23, which is used to assist in connecting the cutting tool 5. The locking component 3 is located inside the mounting groove 22 to assist in clamping and fixing the mold base 23, thereby improving the stability of the mold base 23 and enhancing the accuracy of cardboard cutting.

[0018] Specifically, in this embodiment, the positioning plate 11 is rectangular and has several suction holes on its top surface. These suction holes are all connected to the interior of the positioning plate 11 and form a suction cup structure. A vacuum pump is also provided at the bottom of the cutting table 1. The vacuum pump is connected to the interior of the positioning plate 11 through the vacuum tube 12, so that it can use negative pressure adsorption to assist in fixing the cardboard placed on the surface of the positioning plate 11. Furthermore, a pressure sensor and an electromagnetic valve should be provided on the vacuum tube 12. The pressure sensor is used to prevent the cardboard from being damaged due to excessive pressure.

[0019] The top surface of the positioning plate 11 is also provided with a blade pad layer, which is a glass fiber reinforced nitrile rubber pad. When cutting the cardboard, it can act as a buffer layer to prevent the blade from directly and rigidly contacting the top surface of the positioning plate 11, thus extending the service life of the blade and avoiding problems such as "overcutting" and "not cutting through".

[0020] The locking assembly 3 includes a buffer 31 fixedly installed on the inner wall of the mounting groove 22. The buffer 31 is a rubber pad or silicone pad of a certain thickness, and a limiting plate 32 is provided on the side of the buffer 31 facing the center. A guide groove is vertically provided on the end face of the limiting plate 32. In addition, the mold base 23 adopts a convex-shaped structure design, with corresponding insert plates on the side wall of the protruding part on its top surface. The insert plates can be adapted to the guide slide, so that the protruding part on its top surface can be inserted into the mounting groove 22. On this basis, an interference fit structure should also be adopted—the width of the protruding part should be greater than the distance between the two insert plates. Therefore, when the protruding part is inserted into the mounting groove 22, it will apply pressure to the insert plates on all four sides at the same time. The buffer 31 can use the reverse thrust to fasten the top of the mold base 23, so that it does not shake during the cutting process, effectively improving the stability of the cutting process.

[0021] Meanwhile, a metal plate is embedded on the top surface of the protruding part of the mold base 23, and an elastic pad is covered on its top surface. The elastic pad is a thin rubber pad. At the same time, an electromagnet 33 is correspondingly arranged on the bottom surface of the mounting groove 22. The electromagnet 33 adopts a plate-shaped structure so that it can completely cover the metal plate. Multiple electromagnets 33 are connected to an external power source through wires. Each electromagnet 33 is equipped with a control switch to connect and fix it to the corresponding part of the mold base 23 as needed. It also facilitates the disassembly and replacement of the mold base 23 in the designated part by the staff.

[0022] In addition, a height adjustment component 4 is provided on the bottom surface of the mold base 23. The height adjustment component 4 includes an adjustment sleeve 41 fixed to the bottom of the mold base 23, an adjustment rod 42 slidably inserted into the adjustment sleeve 41, and a locking bolt 43 penetrating the side wall of the adjustment sleeve 41. The top of the cutting tool 5 is fixedly connected to the bottom end of the adjustment rod 42. The outer side wall of the adjustment sleeve 41 is engraved with millimeter-level scale lines along the height direction. The locking bolt 43 is threadedly connected to the adjustment sleeve 41 and its end is tightly abutted against the side wall of the adjustment rod 42.

[0023] In the modular structure combining the mold base 23 and the cutting blade, the cutting blade, as an independent module, can be replaced synchronously with the mold base 23. If different sizes of cartons (e.g., 300mm×200mm, 500mm×350mm) need to be cut, only the mold base 23 with the corresponding size cutting blade needs to be replaced; there is no need to adjust the mounting frame 2, hydraulic cylinder, or other overall structures. Furthermore, combined with the "height adjustment component 4 (adjusting sleeve 41 + scale line)," a single mold base 23 module can independently achieve 0.1mm-level adjustment of the cutting blade height, adapting to cartons with thicknesses from 3mm to 20mm (from single-layer corrugated paper to multi-layer composite corrugated paper), eliminating the need to design dedicated mold bases 23 for cartons of different thicknesses. This modular adaptability of "one unit with multiple cutting blades, one blade with multiple thicknesses" allows the device to meet the production needs of various types of cartons in the packaging industry without frequent modifications, reducing the cost of specialized equipment investment.

[0024] Furthermore, the modular design separates the mold base 23 and the cutting blade into independent functional modules, avoiding the problem of "affecting the whole body" during maintenance of the traditional "integrated structure": First, if the cutting blade is chipped due to long-term use, only the locking bolt 43 of the height adjustment component 4 needs to be loosened to replace the cutting blade module alone, without disassembling the entire mold base 23, reducing unnecessary disassembly and wear of the mold base 23 (including metal plates, elastic pads, etc.); Second, if the mold base 23 experiences adsorption failure (such as aging of the elastic pads) or positioning deviation (such as wear of the guide groove), the mold base 23 module can be replaced separately, without replacing expensive components such as the mounting plate 21 or hydraulic cylinders, and the maintenance cost of a single module is only 1 / 5 to 1 / 3 of that of the traditional integrated structure; Third, the mold base 23 and the cutting blade can be pre-assembled so that they can be directly replaced during production changeover, greatly improving the efficiency of blade changing and reducing downtime.

[0025] Furthermore, multiple sets of mold bases 23 and cutting blades can achieve independent start / stop and collaborative operation: for example, when cutting the same carton, the "edge cutting mold base 23" and the "hole cutting mold base 23" can be started simultaneously. The controller synchronously adjusts the downward timing of the two sets of mold bases 23, completing the edge trimming and hole processing of the carton in one cut, without the need for two separate operations. If the cutting trajectory needs to be adjusted (such as adding handle hole cutting), only the corresponding mold base 23 module needs to be added and connected to the electromagnet 33 control circuit, without modifying the original mold base 23 installation structure. This "modular collaboration" feature allows the device to flexibly combine cutting modules with different functions, adapting to the integrated cutting needs of complex cartons (such as special cartons with handles and windows), reducing process flow, and improving single-process processing efficiency.

[0026] A pressure sensor is also provided inside the positioning plate 11. A controller and an audible and visual alarm device are fixedly installed on the outer wall of the cutting table 1. The pressure sensor is electrically connected to the signal input terminal of the controller through a shielded wire. The signal output terminal of the controller is electrically connected to the audible and visual alarm device, the control switch, and the control terminal of the hydraulic cylinder, respectively. A touch screen is also embedded on the controller.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this utility model.

Claims

1. A cutting device for producing packaging cartons, characterized in that, The device includes a cutting table (1), a positioning plate (11) on the top surface of the cutting table (1), mounting brackets (2) on both sides of the positioning plate (11), the mounting brackets (2) extending towards the center and having a hydraulic cylinder at the top, a mounting plate (21) fixedly connected to the output end of the hydraulic cylinder, a mounting groove (22) on the bottom surface of the mounting plate (21), a mold base (23) embedded in each mounting groove (22), and a cutting tool (5) respectively equipped at the bottom of multiple mold bases (23), and a locking component (3) is also provided inside the mounting groove (22), the locking component (3) extending towards the center and tightly fitting the side wall of the mold base (23).

2. The cutting device for producing packaging cartons according to claim 1, characterized in that, The positioning plate (11) is rectangular and has several suction holes on its top surface. All of the suction holes are connected to the interior of the positioning plate (11). A vacuum pump is provided at the bottom of the cutting table (1). The vacuum pump is connected to the interior of the positioning plate (11) through a vacuum tube (12). A pad layer is also provided on the top surface of the positioning plate (11).

3. The cutting device for producing packaging cartons according to claim 2, characterized in that, The locking assembly (3) includes a buffer (31) on the inner side wall of the mounting groove (22). A limit plate (32) is fixedly installed on the surface of the buffer (31), and a guide groove is provided on the end face of the limit plate (32). The mold base (23) is configured as a convex structure, and an insert plate is provided on the side wall of the protruding part of the top surface of the mold base (23). The insert plate is adapted to the guide groove and is slidably inserted into the mounting groove (22). An elastic pad is also provided on the top surface of the protruding part of the mold base (23), and the elastic pad is tightly fitted to the bottom surface of the mounting groove (22).

4. The cutting device for producing packaging cartons according to claim 3, characterized in that, Each of the mold bases (23) has a metal plate inside its protruding part. The positioning plate (11) has multiple electromagnets (33) inside it. Each electromagnet (33) is embedded in the center of the bottom surface of the mounting groove (22). The multiple electromagnets (33) are electrically connected to the external power supply line through wires. Each electromagnet (33) is equipped with a control switch.

5. The cutting device for producing packaging cartons according to claim 4, characterized in that, The positioning plate (11) is also equipped with a pressure sensor inside, and a controller and an audible and visual alarm device are fixedly installed on the outer wall of the cutting table (1). The pressure sensor is electrically connected to the signal input terminal of the controller through a shielded wire. The signal output terminal of the controller is electrically connected to the audible and visual alarm device, the control switch, and the control terminal of the hydraulic cylinder, respectively. The controller is also equipped with a touch screen.

6. The cutting device for producing packaging cartons according to claim 5, characterized in that, A height adjustment assembly (4) is provided between the mold base (23) and the cutting tool (5). The height adjustment assembly (4) includes an adjustment sleeve (41) fixed to the bottom of the mold base (23), an adjustment rod (42) slidably inserted into the adjustment sleeve (41), and a locking bolt (43) penetrating the side wall of the adjustment sleeve (41). The top of the cutting tool (5) is fixedly connected to the bottom end of the adjustment rod (42). The outer side wall of the adjustment sleeve (41) is engraved with millimeter-level scale lines along the height direction. The locking bolt (43) is threadedly connected to the adjustment sleeve (41) and its end is tightly abutted against the side wall of the adjustment rod (42).

7. The cutting device for producing packaging cartons according to claim 6, characterized in that, The vacuum tube (12) is also equipped with an electromagnetic valve and a pressure sensor.

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