Automatic corner trimming device for honeycomb paperboard

Abstract

The utility model discloses a kind of honeycomb paperboard corner automatic edge trimming device, it is related to honeycomb paperboard processing technical field, including support, fixed disc is fixedly installed on support upper end, two rotating shafts are symmetrically rotationally arranged on fixed disc, the end of two rotating shafts is fixedly installed with the fixed frame of L shape, the inside of fixed frame is equipped with trimming part, driving part for driving the synchronous rotation of two rotating shafts is equipped on support and rotating shaft.The utility model passes through the fixed frame and trimming part of synchronous rotation, can first clamp and pull down excess surface paper at end before trimming, effectively avoid the swing and wrinkle problem caused by surface paper thin softness.Adopting the structure of vertical guide lifting pressure plate with specially designed double-edge triangular blade cooperation, the trimming process of first fixing, then bending, again accurate cutting is realized, and the trimming quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of honeycomb paperboard processing, and in particular to an automatic edge trimming device for honeycomb paperboard corners. Background Technology

[0002] In the production of honeycomb paperboard, the lamination process is a crucial step, involving bonding the face paper to the unfolded and fixed honeycomb core. However, after lamination, the paper surface at the edges of the honeycomb paperboard often protrudes beyond the honeycomb core. This excess paper not only affects the overall appearance of the honeycomb paperboard, making it look irregular and unsightly, but also can cause assembly difficulties during subsequent processing, packaging, or assembly with other components, and may even affect the structural stability and performance of the product. Therefore, to ensure the quality of the honeycomb paperboard and meet the requirements of subsequent processing and use, these excess edges must be trimmed to achieve a smooth surface.

[0003] Currently, although some trimming devices exist to address edge issues in honeycomb cardboard, the thin and lightweight linerboard lacks effective restraint during trimming, making it prone to wobbling or wrinkling. This instability makes it difficult for the cutting tool to maintain a constant path and pressure, resulting in burrs, tears, or wavy unevenness on the trimmed cardboard edges. This makes it difficult to control cutting quality, hindering production efficiency and product qualification rates. Utility Model Content

[0004] The purpose of this invention is to solve the problem of uneven trimming in existing honeycomb paperboard trimming devices, and to propose an automatic trimming device for the corners of honeycomb paperboard.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: An automatic edge trimming device for honeycomb paperboard includes a bracket, a fixed plate fixedly installed on the upper end of the bracket, two rotating shafts symmetrically rotatably arranged on the fixed plate, an L-shaped fixing frame fixedly installed at the ends of the two rotating shafts, an edge trimming component provided on the inner side of the fixing frame, and a driving component for driving the two rotating shafts to rotate synchronously on the bracket and the rotating shafts.

[0006] Preferably, the trimming component includes a fixed plate and a lifting plate arranged parallel to each other inside the fixed frame. The fixed plate is fixedly connected to the fixed frame. A cylinder is fixedly provided at the upper end of the fixed frame. The output end of the cylinder is fixedly connected to the upper surface of the lifting plate. Slicing components are provided on the side of the fixed plate and the side of the lifting plate.

[0007] Preferably, the slicing component includes a first blade fixedly mounted on the side of the fixed plate and a second blade fixedly mounted on the side of the lifting plate. The cutting edge of the first blade extends outward from the end of the fixed plate, and the cutting edge of the second blade is flush with the lower surface of the lifting plate.

[0008] Preferably, a limit rod is vertically installed in the groove of the fixing frame, and a connecting block is slidably provided on the limit rod, with one end of the connecting block fixedly connected to the side of the lifting plate.

[0009] Preferably, the driving component includes two meshing gears and a motor fixedly mounted on a bracket. The two gears are respectively fixedly mounted on two rotating shafts, and the output end of the motor is fixedly connected to one rotating shaft.

[0010] Preferably, the first blade has a double edge, and the cutting edge of the first blade is triangular.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, a synchronously rotating fixing frame and trimming components allow for the clamping and downward pulling of excess face paper at the end before trimming, effectively preventing swaying and wrinkling caused by the thin and soft face paper. The use of a vertically guided lifting pressure plate structure in conjunction with a specially designed double-edged triangular blade enables a trimming process of first fixing, then bending, and finally precise cutting. This device combines tearing and cutting, resulting in a neat and smooth separation, significantly improving the flatness and quality of the trimming, while also achieving automated operation and increasing production efficiency. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the contact structure between the trimming part and the end of the face paper of this utility model. Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the working structure of the trimming part of this utility model; Figure 4 This is a schematic diagram of the trimming component structure of this utility model.

[0013] The following are the components listed in the diagram: 1. Bracket; 11. Fixed plate; 12. Rotating shaft; 13. Fixed frame; 2. Trimming piece; 21. Fixed plate; 22. Lifting plate; 23. Cylinder; 3. First blade; 31. Second blade; 4. Limiting rod; 41. Connecting block; 5. Gear; 51. Motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0017] Example: This example provides an automatic edge trimming device for honeycomb paperboard corners. See [link / reference]. Figure 1-4 Specifically, it includes a bracket 1, a fixed plate 11 fixedly installed on the upper end of the bracket 1, two rotating shafts 12 symmetrically rotated on the fixed plate 11, an L-shaped fixed frame 13 fixedly installed at the ends of the two rotating shafts 12, a trimming part 2 provided on the inner side of the fixed frame 13, and a driving component for driving the two rotating shafts 12 to rotate synchronously on the bracket 1 and the rotating shafts 12.

[0018] In this embodiment, the bracket 1 serves as the supporting foundation for the entire device, providing installation positions for other components and ensuring the overall stability of the device. The bracket 1 can be installed on both sides of the honeycomb paperboard production conveyor line, with the sides of the honeycomb paperboard on the conveyor line located outside the conveyor line to facilitate the trimming component 2 in trimming excess paper. The fixed plate 11 is installed on the upper end of the bracket 1 to support and fix the rotating shaft 12, enabling the rotating shaft 12 to rotate stably. The rotating shaft 12 is symmetrically arranged on the fixed plate 11 and can rotate around its own axis. A fixed frame 13 is installed at its end, and the rotation drives the fixed frame 13 to rotate. The trimming component 2 is connected to the PLC signal to realize automatic trimming.

[0019] When the honeycomb cardboard on the conveyor line moves to the trimming part 2, the trimming part 2 clamps the excess end of the face paper. The drive unit drives the rotating shaft 12 to rotate, and the rotating shaft 12 drives the fixing frame 13 and the trimming part 2 to rotate, tearing the excess face paper by bending, such as ( Figure 3 The conveyor line drives the honeycomb paperboard to move, and the excess paper on the edge of the honeycomb paperboard is removed by the trimming part 2. Since the edge of the paperboard is fixed by the trimming part 2, the excess paper at the end is pulled down, making the separation point of the paperboard smoother and improving the trimming quality.

[0020] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the trimming part 2 includes a fixed plate 21 and a lifting plate 22 arranged parallel to each other inside the fixed frame 13. The fixed plate 21 is fixedly connected to the fixed frame 13. A cylinder 23 is fixedly provided at the upper end of the fixed frame 13. The output end of the cylinder 23 is fixedly connected to the upper surface of the lifting plate 22. Slicing parts are provided on the side of the fixed plate 21 and the side of the lifting plate 22.

[0021] In this embodiment, the position of the bracket 1 is adjusted so that the excess face paper of the honeycomb cardboard on the conveyor line is attached to the upper surface of the fixing plate 21. The piston rod of the cylinder 23 pushes the lifting plate 22 down. The lifting plate 22 cooperates with the fixing plate 21 to fix the excess face paper. When the fixing frame 13 rotates, the end of the excess face paper will be bent. The cutting component of the fixing plate 21 and the lifting plate 22 near the honeycomb core will cut the excess panel. The bending operation after the excess face paper is fixed and the cutting component cooperate to improve the edge trimming and flatness quality.

[0022] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the slicing component includes a first blade 3 fixedly mounted on the side of the fixed plate 21 and a second blade 31 fixedly mounted on the side of the lifting plate 22. The cutting edge of the first blade 3 extends outward from the end of the fixed plate 21, and the cutting edge of the second blade 31 is flush with the lower surface of the lifting plate 22.

[0023] In this embodiment, when the upper fixing plate 21 and lifting plate 22 rotate clockwise, the first blade 3 will cut the excess paper at the fixing point from the edge of the honeycomb core from bottom to top. The second blade 31 is located on the same plane as the first blade 3. The second blade 31 cuts the excess paper from the end. After rotating ninety degrees, the blades of the first blade 3 and the second blade 31 are perpendicular to the excess paper. When the honeycomb paperboard moves, the trimming operation is achieved by the combination of the pulling of the excess paper by the fixing plate 21 and the lifting plate 22 and the first blade 3.

[0024] In the specific implementation process, such as Figure 3 and Figure 4As shown, a limit rod 4 is vertically installed in the groove of the fixed frame 13, and a connecting block 41 is slidably provided on the limit rod 4. One end of the connecting block 41 is fixedly connected to the side of the lifting plate 22.

[0025] In this embodiment, when the cylinder 23 drives the lifting plate 22 to move up and down, the connecting block 41, which is fixedly connected to the lifting plate 22, slides along the limiting rod 4. The limiting rod 4 restricts the movement direction of the connecting block 41, so that the lifting plate 22 can only move up and down smoothly in the vertical direction, avoiding deviation or shaking.

[0026] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the driving component includes two meshing gears 5 and a motor 51 fixedly mounted on the bracket 1. The two gears 5 are respectively fixedly mounted on two rotating shafts 12, and the output end of the motor 51 is fixedly connected to one rotating shaft 12.

[0027] Two meshing gears 5 are fixedly mounted on two rotating shafts 12 respectively. Through the meshing transmission of the gears 5, the power of the motor 51 is transmitted to the two rotating shafts 12, realizing the synchronous but opposite rotation of the two rotating shafts 12. The motor 51 is fixedly mounted on the bracket 1 as a power source, and its output end is fixedly connected to one of the rotating shafts 12 to provide power for the rotation of the rotating shaft 12.

[0028] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the first blade 3 has a double-edged design, with the cutting edge of the first blade 3 being triangular in shape. This double-edged design allows the first blade 3 to cut from two directions during the trimming process, improving cutting efficiency. The triangular cutting edge has a sharper cutting angle, enabling it to cut into objects more easily and improving the sharpness and effectiveness of the cut.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic edge trimming device for honeycomb cardboard corners, characterized in that, Includes a bracket (1), on which a fixed plate (11) is fixedly installed. Two rotating shafts (12) are symmetrically rotated on the fixed plate (11). An L-shaped fixed frame (13) is fixedly installed at the ends of the two rotating shafts (12). A trimming part (2) is provided on the inner side of the fixed frame (13). A driving component for driving the two rotating shafts (12) to rotate synchronously is provided on the bracket (1) and the rotating shafts (12).

2. The automatic edge trimming device for honeycomb paperboard according to claim 1, characterized in that: The trimming part (2) includes a fixing plate (21) and a lifting plate (22) arranged parallel to the inside of the fixing frame (13). The fixing plate (21) is fixedly connected to the fixing frame (13). A cylinder (23) is fixedly provided at the upper end of the fixing frame (13). The output end of the cylinder (23) is fixedly connected to the upper surface of the lifting plate (22). Slicing parts are provided on the side of the fixing plate (21) and the side of the lifting plate (22).

3. The automatic edge trimming device for honeycomb paperboard corners according to claim 2, characterized in that: The slicing component includes a first blade (3) fixedly installed on the side of the fixed plate (21) and a second blade (31) fixedly installed on the side of the lifting plate (22). The cutting edge of the first blade (3) extends outward from the end of the fixed plate (21), and the cutting edge of the second blade (31) is flush with the lower surface of the lifting plate (22).

4. The automatic edge trimming device for honeycomb paperboard corners according to claim 2, characterized in that: A limiting rod (4) is vertically installed in the groove of the fixed frame (13), and a connecting block (41) is slidably provided on the limiting rod (4). One end of the connecting block (41) is fixedly connected to the side of the lifting plate (22).

5. The automatic edge trimming device for honeycomb paperboard corners according to claim 1, characterized in that: The drive unit includes two meshing gears (5) and a motor (51) fixedly mounted on a bracket (1). The two gears (5) are respectively fixedly mounted on two rotating shafts (12), and the output end of the motor (51) is fixedly connected to one rotating shaft (12).

6. The automatic edge trimming device for honeycomb paperboard corners according to claim 3, characterized in that: The first blade (3) has a double edge, and the blade of the first blade (3) is triangular in shape.

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