A corner cutting device for a carton

Abstract

The utility model relates to a corner cutting device technical field especially a kind of corner cutting device of packaging carton, including corner cutting platform and the top frame of fixed installation at its top, the inside both sides of top frame are provided with corner cutting module, the inside of top frame is provided with the drive frame of driving two groups of corner cutting module to cut corner to paperboard, corner cutting module includes the corner cutting mould frame in the inside both sides of drive frame, the utility model is by the corner cutting module of two sides with multiple groups of corner cutting knife and is made of corner cutting mould frame, multiple groups of different opening shape's corner cutting knife is integrated in mould frame outer periphery, switch function of cooperation drive shaft driving mould frame rotation, can quickly adapt the corner cutting specification of different paperboard, without stopping machine and change single tool, and can slide by driving plate driving corner cutting mould frame, the spacing of two sides corner cutting knife can be accurately adjusted, adapt multi-specification paperboard width, can cope with multi-variety, small batch production demand, satisfy the diversification corner cutting demand, improve the flexibility and applicability of carton processing.

Description

Technical Field

[0001] This utility model relates to the field of corner cutting device technology, and in particular to a corner cutting device for packaging cartons. Background Technology

[0002] In the production and processing of packaging cartons, corner trimming is a key process to ensure the forming accuracy of cartons and improve the aesthetics of packaging. Currently, existing carton corner trimming devices have many limitations in meeting the production needs of multiple varieties and small batches.

[0003] Traditional corner trimming devices for cardboard boxes typically consist of a drive cylinder and a corner cutting blade. The drive cylinder moves the corner cutting blade downwards, causing it to cut the corners of the cardboard, facilitating subsequent processing. However, since different types of cardboard boxes have different corner shapes (such as right angles, bevels, and rounded corners with specific curvatures), and existing corner cutting blades are mostly of a fixed single specification, each set of blades can only correspond to one opening shape. When processing cardboard boxes with different corner shapes, different shaped corner cutting blades are required, or the corner cutting blades need to be replaced, increasing the complexity of operation. Furthermore, it is not convenient to position the cutting according to the width of the cardboard, reducing the versatility of the corner trimming device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a corner cutting device for packaging cartons. It solves the technical problems of existing corner cutting blades being mostly fixed in a single specification, with each set of blades only corresponding to one opening shape. When processing cartons with different corner cutting shapes, different shaped corner cutting blades are required, increasing operational complexity and making it inconvenient to position and cut according to the width of the cardboard, thus reducing the versatility of the corner cutting equipment. This new device adapts to various cardboard widths, meeting the needs of multi-variety, small-batch production and diverse corner cutting requirements, while simultaneously improving the flexibility and applicability of carton processing.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a corner cutting device for packaging cartons, including a corner cutting platform and a top frame fixedly installed on its top. Corner cutting modules are provided on both sides inside the top frame. A drive frame is provided inside the top frame to drive the two sets of corner cutting modules to move down and cut the corners of the cardboard. The corner cutting module includes corner cutting mold frames located on both sides inside the drive frame, and four sets of corner cutting blades of different shapes fixedly installed on the outer peripheral wall of the corner cutting mold frames. A drive shaft is provided inside the drive frame to drive the two sets of corner cutting modules to rotate and switch the multiple sets of corner cutting blades. The outer peripheral walls on both sides of the drive shaft are slidably fitted with drive plates that correspond to the positions of the two sets of corner cutting modules. The drive plates drive the corner cutting modules to slide to adapt to cardboard of different widths for corner cutting.

[0006] Preferably, a drive cylinder for sliding the top frame is fixedly installed on both sides of the top of the top frame, and a first motor for rotating the drive shaft is fixedly installed on the outer wall.

[0007] Preferably, the outer peripheral wall of the drive shaft is provided with multiple sets of keyways, and the inner peripheral wall of the chamfered mold frame is fixedly installed with multiple sets of T-blocks that are adapted to the keyways.

[0008] Preferably, guide rods with ends slidably connected to the inner wall of the top frame are fixedly installed on the outer walls of both sides of the drive frame.

[0009] Preferably, the two sets of chamfered mold frames are fixedly installed with connecting rings adapted to the shape of the inner cavity of the drive plate on the outer wall of the side away from each other, and the connecting rings are rotatably connected to the inner cavity of the drive plate.

[0010] Preferably, a fixed frame is fixedly installed between the protruding portions on both sides of the outer wall of the drive frame, a bidirectional screw is rotatably connected inside the fixed frame, and a second motor that drives the bidirectional screw to rotate is fixedly installed on the outer wall of the fixed frame.

[0011] Preferably, the two sides of the outer peripheral wall of the bidirectional screw are threaded with driving components that are slidably connected to the fixed frame. The outer end of the driving component passes through the inner wall of the fixed frame and is fixedly installed with a guide plate. One end of the guide plate is fixedly connected to the driving plate.

[0012] By employing the above technical solution, this utility model provides a corner trimming device for packaging cartons, which has at least the following beneficial effects: 1. This utility model consists of a corner cutting module on both sides, which is composed of a corner cutting mold frame and multiple sets of corner cutting blades. Multiple sets of corner cutting blades with different opening shapes are integrated on the outer periphery of the mold frame. With the switching function of the drive shaft driving the mold frame to rotate, it can quickly adapt to the corner cutting specifications of different cardboards without stopping the machine to replace individual blades. It can also drive the corner cutting mold frame to slide through the drive plate, and can accurately adjust the distance between the corner cutting blades on both sides to adapt to the width of multiple cardboard specifications. This can meet the production needs of multiple varieties and small batches, satisfy diverse corner cutting requirements, and at the same time improve the flexibility and applicability of carton processing.

[0013] 2. By setting the keyway and T-block to cooperate, this utility model can ensure that while the drive shaft drives the corner cutting mold frame to rotate, the drive plate can drive the corner cutting mold frame to slide on the outer peripheral wall of the drive shaft. While switching multiple sets of corner cutting blades, the distance between two sets of corner cutting mold frames can be adjusted, and the switching and distance adjustment actions can be completed simultaneously to meet the needs of diverse corner cutting for cardboard of different widths. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the top frame of this utility model; Figure 3 This is a schematic diagram of the internal structure of the drive frame of this utility model; Figure 4 This is a schematic diagram of the connection structure between the two sets of chamfered modules and the drive shaft of this utility model; Figure 5 This is a schematic diagram of the chamfered corner module structure of this utility model; Figure 6 This is a sectional view of one side of the drive board and chamfered module of this utility model; Figure 7 This is a schematic diagram of the connection structure between the bidirectional screw and the two sets of drive plates of this utility model.

[0016] In the diagram: 1. Corner cutting platform; 2. Top frame; 21. Guide rod; 3. Corner cutting module; 31. Corner cutting mold frame; 311. T-block; 312. Connecting ring; 32. Corner cutting blade; 4. Drive cylinder; 5. Drive frame; 6. Drive shaft; 61. First motor; 62. Keyway; 7. Drive plate; 8. Fixing frame; 81. Second motor; 82. Bidirectional screw; 83. Drive component; 84. Guide plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1 Currently available corner-cutting blades 32 are mostly of fixed single specifications, with each set of blades only corresponding to one opening shape. When processing cartons with different corner cutting shapes, different shaped corner-cutting blades 32 are required, increasing the complexity of operation and making it inconvenient to position and cut according to the width of the cardboard, thus reducing the versatility of corner-cutting equipment. This embodiment provides a corner-cutting device for packaging cartons that can adapt to multiple cardboard widths, thus meeting the needs of multi-variety, small-batch production and diverse corner-cutting requirements. Simultaneously, it improves the flexibility and applicability of carton processing. Please refer to... Figure 1 - Figure 5The corner cutting device for the packaging carton includes a corner cutting platform 1 and a top frame 2 fixedly installed on its top. Corner cutting modules 3 are arranged on both sides inside the top frame 2. A drive frame 5 is arranged inside the top frame 2 to drive the two sets of corner cutting modules 3 to move down and cut the corners of the cardboard. The corner cutting module 3 includes corner cutting module frames 31 located on both sides inside the drive frame 5, and four sets of corner cutting blades 32 of different shapes fixedly installed on the outer peripheral wall of the corner cutting module frames 31. A drive shaft 6 is arranged inside the drive frame 5 to drive the two sets of corner cutting modules 3 to rotate and switch the multiple sets of corner cutting blades 32. During the corner cutting process of the cardboard, the distance between the two sets of corner cutting modules 3 is first adjusted according to the width of the cardboard, and the two sets of corner cutting blades 32 suitable for the corner cutting shape of the cardboard are selected and switched so that the bottom of the two sets of corner cutting blades 32 switched in is in a horizontal state with the corner cutting platform 1.

[0019] The outer peripheral walls on both sides of the drive shaft 6 are slidably fitted with drive plates 7, which are positioned corresponding to the two sets of corner cutting modules 3. The drive plates 7 drive the corner cutting modules 3 to slide to adapt to cardboard of different widths for corner cutting. Place one side of the cardboard to be corner cut in the middle position directly below the two sets of corner cutting modules 3. Then the drive cylinder 4 at the top works, causing the drive frame 5 to move the two sets of corner cutting modules 3 downwards. After the two sets of modules cut corners on one side of the cardboard, the cardboard is flipped over and corner cutting is performed on the other side of the cardboard.

[0020] Since different cartons have different corner shapes during manufacturing, multiple sets of corner-cutting blades 32 are installed on the outer peripheral wall of the corner-cutting mold frame 31. The rotation of the two sets of corner-cutting mold frames 31 is controlled by the drive shaft 6, allowing simultaneous switching of the corner-cutting blades 32 on both sides. This meets usage needs and improves the versatility of the corner-cutting device. Figure 2 - Figure 4 As shown, drive cylinders 4 are fixedly installed on both sides of the top of the top frame 2 to drive the top frame 2 to slide. The two sets of drive cylinders 4 are controlled by the same power supply and are in a synchronous working state. A first motor 61 that drives the drive shaft 6 to rotate is fixedly installed on the outer wall. The output end of the drive cylinder 4 is fixedly connected to the top of the drive frame 5, so that the drive frame 5 can slide inside the top frame 2 and drive the two sets of corner cutting modules 3 to perform corner cutting operations on a pair of cardboard. When switching the corner cutting blades 32 on both sides, the first motor 61 works, so that the drive shaft 6 can drive the two sets of corner cutting modules 3 to rotate synchronously, realizing the switching operation of multiple sets of corner cutting blades 32. It should be noted that the two sets of corner cutting blades 32 switched to the bottom are of the same shape.

[0021] To ensure that the drive shaft 6 can rotate the two sets of corner-cutting mold frames 31, and simultaneously ensure that the drive plate 7 can smoothly slide the two sets of corner-cutting mold frames 31 against the outer peripheral wall of the drive shaft 6, a keyway 62 is provided on the outer peripheral wall of the drive shaft 6, and a T-shaped block 311 adapted to the keyway 62 is installed on the inner peripheral wall of the corner-cutting mold frame 31. This ensures that while the drive shaft 6 rotates the corner-cutting mold frame 31, the drive plate 7 can also slide the corner-cutting mold frame 31 against the outer peripheral wall of the drive shaft 6. When switching between multiple sets of corner-cutting blades 32, the distance between the two sets of corner-cutting mold frames 31 can be adjusted to accommodate corner-cutting operations on cardboard of different widths. Figure 4 - Figure 6 As shown, multiple sets of keyways 62 are evenly provided on the outer peripheral wall of the drive shaft 6, and multiple sets of T-blocks 311 that are adapted to the keyways 62 are fixedly installed on the inner peripheral wall of the corner cutting mold frame 31. When the drive shaft 6 rotates, the two sets of corner cutting mold frames 31 can be driven to rotate through the cooperation between the keyways 62 and the T-blocks 311, so as to switch the corner cutting blades 32 on both sides.

[0022] Example 2 Based on Example 1, such as Figure 6 - Figure 7 As shown, the device is also equipped with a drive plate 7 that drives the two corner-cutting mold frames 31 to slide on the outer peripheral wall of the drive shaft 6. It can adjust the distance between the two sets of corner-cutting mold frames 31 to meet the corner-cutting needs of different widths of cardboard. The two outer walls of the drive frame 5 are fixedly installed with guide rods 21 whose ends are slidably connected to the inner wall of the top frame 2. During the sliding process of the drive frame 5, the guide rods 21 on both sides can limit the movement trajectory of the drive frame 5 to ensure that the drive frame 5 is in a stable lifting state. The outer wall of the two sets of corner-cutting mold frames 31 away from each other is fixedly installed with a connecting ring 312 that matches the shape of the inner cavity of the drive plate 7. The connecting ring 312 is rotatably connected to the inner cavity of the drive plate 7. During the rotation of the drive shaft 6, the position of the drive plate 7 remains unchanged. At the same time, the connecting ring 312 installed on the outer wall of the corner-cutting mold frame 31 is rotatably connected to the inner cavity of the drive plate 7, ensuring that the corner-cutting mold frame 31 and the drive plate 7 are always in a connected state.

[0023] Since cardboard widths vary, when cutting corners on cardboard of different widths, the positions of the two corner cutting blades 32 need to correspond to the corner cutting positions of the cardboard width. This is addressed by setting up a drive assembly to move the two corner cutting blades 32, such as... Figure 3 - Figure 7As shown, a fixed frame 8 is fixedly installed between the protruding parts on both sides of the outer wall of the drive frame 5. A bidirectional screw 82 is rotatably connected inside the fixed frame 8, and a second motor 81 that drives the bidirectional screw 82 to rotate is fixedly installed on the outer wall of the fixed frame 8. The output end of the second motor 81 is fixedly connected to the end of the bidirectional screw 82 and drives the bidirectional screw 82 to rotate inside the fixed frame 8. By fixing the fixed frame 8 and the drive frame 5, the drive frame 5 can drive the fixed frame 8 and the two sets of drive plates 7 to move down together, without affecting the corner cutting work of the cardboard by moving the corner cutting blades 32 on both sides down.

[0024] The outer peripheral wall of the bidirectional screw 82 is threaded with drive components 83 that are slidably connected to the fixed frame 8. The outer end of the drive component 83 passes through the inner wall of the fixed frame 8 and is fixedly installed with a guide plate 84. The guide plate 84 slides on the outer wall of the drive frame 5. One end of the guide plate 84 is fixedly connected to the drive plate 7. When the bidirectional screw 82 rotates, the drive component 83 and the guide plate 84 can simultaneously drive the drive plates 7 on both sides to slide and engage with the outer peripheral wall of the drive shaft 6. This allows the drive plates 7 to drive the two sets of corner cutting mold frames 31 to adjust their positions, ensuring that the relative positions of the corner cutting blades 32 on both sides are consistent with the edges of cardboard of different widths, thus meeting the requirements for corner cutting of cardboard of different widths.

[0025] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover 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 process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corner cutting device for packaging cartons, comprising a corner cutting platform (1) and a top frame (2) fixedly installed on its top, wherein corner cutting modules (3) are provided on both sides inside the top frame (2), characterized in that: The top frame (2) is provided with a drive frame (5) that drives two sets of corner cutting modules (3) to move down to cut the corners of the cardboard. The corner cutting module (3) includes corner cutting module frames (31) located on both sides inside the drive frame (5) and four sets of corner cutting blades (32) of different shapes fixedly installed on the outer peripheral wall of the corner cutting module frames (31). The drive frame (5) is provided with a drive shaft (6) that drives the two sets of corner cutting modules (3) to rotate and switch the multiple sets of corner cutting blades (32). The drive shaft (6) has drive plates (7) slidably sleeved on both sides of its outer peripheral wall, which are corresponding to the positions of the two sets of corner cutting modules (3). The drive plates (7) drive the corner cutting modules (3) to slide to adapt to the corner cutting of cardboard of different widths.

2. The corner trimming device for packaging cartons according to claim 1, characterized in that: The top frame (2) is fixedly installed with a drive cylinder (4) on both sides of the top, which drives the top frame (2) to slide, and a first motor (61) is fixedly installed on the outer wall to drive the drive shaft (6) to rotate.

3. The corner trimming device for packaging cartons according to claim 2, characterized in that: The outer peripheral wall of the drive shaft (6) is uniformly provided with multiple sets of keyways (62), and the inner peripheral wall of the chamfered mold frame (31) is fixedly installed with multiple sets of T-blocks (311) that are adapted to the keyways (62).

4. The corner trimming device for packaging cartons according to claim 1, characterized in that: The drive frame (5) has guide rods (21) fixedly installed on both outer walls, with their ends slidably connected to the inner wall of the top frame (2).

5. The corner trimming device for packaging cartons according to claim 1, characterized in that: The two sets of chamfered mold frames (31) are fixedly installed with connecting rings (312) that are adapted to the shape of the inner cavity of the drive plate (7) on the outer wall of the opposite side. The connecting rings (312) are rotatably connected to the inner cavity of the drive plate (7).

6. The corner trimming device for packaging cartons according to claim 1, characterized in that: A fixed frame (8) is fixedly installed between the two protruding parts on the outer wall of the drive frame (5). A bidirectional screw (82) is rotatably connected inside the fixed frame (8), and a second motor (81) that drives the bidirectional screw (82) to rotate is fixedly installed on the outer wall of the fixed frame (8).

7. The corner trimming device for packaging cartons according to claim 6, characterized in that: The two-way screw (82) has a drive component (83) threaded on both sides of its outer peripheral wall, which is slidably connected to the fixed frame (8). The outer end of the drive component (83) passes through the inner wall of the fixed frame (8) and is fixedly installed with a guide plate (84). One end of the guide plate (84) is fixedly connected to the drive plate (7).

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