Warp detection device for corrugated board production

Abstract

The utility model discloses a warpage detection device for corrugated board production, which comprises a transmission mechanism and first connecting columns, a supporting column is arranged at the bottom end of the transmission mechanism, the first connecting columns are arranged at the top end of the transmission mechanism, first fixing plates are arranged at the top ends of the first connecting columns, and a composite pressure measuring plate is arranged between the first connecting columns. A first sliding groove is formed in the first connecting column and is used for enabling the composite pressure measuring plate to slide up and down; by arranging a composite pressure measuring plate and a pressure sensor, when corrugated paper is placed on the conveying mechanism, the bottom end face of the pressure sensor stretches out and draws back to the position flush with the top end face of the corrugated paper through a first telescopic rod according to the thickness of the corrugated paper, and when the top end or the bottom end of the corrugated paper is warped, pressure is applied to the pressure sensor; at the moment, the pressure sensor can transmit an electric signal to the program control case, through the method, the detection accuracy is high, the bending degree of each part of the corrugated board can be effectively and accurately detected, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of corrugated paper processing technology, and in particular to a warping detection device for corrugated cardboard production. Background Technology

[0002] Due to the influence of humidity, temperature, adhesive thickness, tension, and relative humidity on the quality of corrugated cardboard, unevenness often occurs in the produced cardboard. During the production process, it is necessary to use detection devices to detect warping of the corrugated cardboard.

[0003] A search revealed that Chinese Patent Publication No. CN222438781U provides a cardboard warping detection device, belonging to the field of corrugated paper processing technology. It includes a conveyor belt and a support frame mounted on the conveyor belt. A connecting rod is slidably mounted on the support frame, a second connecting plate is mounted at the bottom of the connecting rod, a first connecting frame is slidably mounted on the second connecting plate, a laser rangefinder is mounted on the first connecting frame, a second connecting frame is mounted at the bottom of the first connecting frame, a detection wheel is rotatably mounted on the second connecting frame, and a first connecting block is mounted on the connecting rod. This utility model, by setting the connecting rod to slide on the support frame, allows adjustment of the position of the detection wheel, enabling the detection wheel to detect corrugated cardboard of different thicknesses. By setting the second connecting block to slide on the first connecting block, inserting an insert into a slot can limit the adjustment of the connecting rod.

[0004] A search revealed that Chinese Patent Publication No. CN217738198U provides an online detection system for corrugated cardboard warping, relating to the field of cardboard production technology. The system includes a support frame and a main frame, on which several infrared rangefinders are mounted. These rangefinders are connected to a PLC system, which in turn is connected to an industrial computer. This utility model provides an online detection system for corrugated cardboard warping, solving the problem that current cardboard production lines rely entirely on manual visual inspection to determine warping. It provides data support for warping detection, improving cardboard quality and reducing production costs. This online detection system is based on Siemens PLC control and an industrial computer. It uses infrared rangefinders to collect warping data, plots the warping curve, and uses algorithms to determine the degree of warping, providing real-time feedback to the cardboard production process control system. This allows for real-time adjustment of process parameters, improving cardboard flatness.

[0005] However, while existing technologies can detect the warping of corrugated paper, their accuracy is low, and they cannot effectively and accurately detect the degree of warping at various points on the corrugated board, resulting in poor practicality.

[0006] To address this issue, we propose a warping detection device for corrugated cardboard production. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a warping detection device for corrugated cardboard production.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A warping detection device for corrugated cardboard production includes a conveying mechanism, a support column at the bottom of the conveying mechanism, and further includes:

[0010] A first connecting column is located at the top of the transmission mechanism. A first fixing plate is provided at the top of the first connecting column. A composite pressure measuring plate is provided between the first connecting columns. A first sliding groove is provided inside the first connecting column to allow the composite pressure measuring plate to slide up and down. A first motor is provided on both sides of the top of the first fixing plate. A first telescopic rod is provided at the bottom of the first fixing plate on the side opposite to the first motor. The bottom end of the first telescopic rod is fixedly connected to the composite pressure measuring plate. A pressure sensor is provided at the bottom of the composite pressure measuring plate.

[0011] More preferably, the support column is fixedly connected to the transmission mechanism, the support column is provided and symmetrically arranged with the transmission structure as the center, and the spacing of the support column along the length direction of the transmission mechanism is consistent.

[0012] More preferably, a control panel is provided on one side of the transmission mechanism, and the control panel is provided with control buttons for controlling the device. The control buttons are evenly distributed on the control panel.

[0013] More preferably, a second connecting post is provided on the side of the top of the transmission mechanism opposite to the first connecting post, a second fixing plate is provided on the top of the second connecting post, and a program control chassis is provided between the first connecting post and the second connecting post.

[0014] More preferably, the program control chassis has a first fixing block on the side near the first connecting column, and a second fixing block on the side near the second connecting column, with the first fixing block and the second fixing block arranged symmetrically about the program control chassis.

[0015] More preferably, one end of the first fixing block is fixed to the program control chassis by screws, the bottom end of the first fixing block is fixedly connected to the first fixing plate by screws, one end of the second fixing block is fixed to the program control chassis by screws, and the bottom end of the second fixing block is fixedly connected to the second fixing plate by screws. The first fixing block and the second fixing block are used to fix the program control chassis.

[0016] More preferably, a roller is provided between the second connecting columns, and a second sliding groove is provided inside the second connecting column for the roller to slide up and down, with both ends of the roller inserted into the second sliding groove.

[0017] More preferably, a second motor is provided on both sides of the top of the second fixed plate, and a second telescopic rod is provided on the bottom of the second fixed plate on the side opposite to the second motor, and the bottom end of the second telescopic rod is fixedly connected to the roller rod.

[0018] More preferably, both ends of the composite pressure plate are inserted into the first sliding groove, and the composite pressure plate is slidably connected to the first sliding groove.

[0019] More preferably, the bottom end face of the pressure sensor is disposed opposite to the top end face of the transmission mechanism, and the end face of the roller bar opposite to the transmission mechanism is an arc-shaped end face and the arc-shaped end face is a smooth end face.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] By setting up a composite pressure plate and a pressure sensor, when the corrugated paper is placed on the conveying mechanism, the bottom end of the pressure sensor is extended or retracted to a position flush with the top end of the corrugated paper by the first telescopic rod according to the thickness of the corrugated paper. When the top or bottom end of the corrugated paper bends, it will apply pressure to the pressure sensor. At this time, the pressure sensor can transmit an electrical signal to the program control box. This method has high detection accuracy and can effectively and accurately detect the degree of bending of the corrugated paper at various points, making it highly practical. Attached Figure Description

[0022] Figure 1 This is a structural diagram of a warping detection device for corrugated cardboard production proposed in this utility model;

[0023] Figure 2 for Figure 1 Schematic diagram of the connection structure of the first connecting column in the middle;

[0024] Figure 3 for Figure 1 Schematic diagram of the connection structure of the second connecting column in the middle;

[0025] Figure 4 for Figure 1 Schematic diagram of the internal structure of the first connecting column;

[0026] Figure 5 for Figure 1 Schematic diagram of the internal structure of the second connecting column.

[0027] In the diagram: 1. Transmission mechanism; 2. Support column; 3. Control panel; 4. First connecting column; 5. Second connecting column; 6. Program control box; 7. First fixing block; 8. Second fixing block; 9. First fixing plate; 10. First sliding groove; 11. Composite pressure measuring plate; 12. Pressure sensor; 13. First motor; 14. First telescopic rod; 15. Second fixing plate; 16. Second sliding groove; 17. Roller rod; 18. Second motor; 19. Second telescopic rod. Detailed Implementation

[0028] 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.

[0029] refer to Figure 1 The conveying mechanism 1 is used to transport corrugated cardboard for inspection and flattening. The Chinese patent publication number CN222438781U discloses the conveying mechanism 1, which will not be described in detail here. The bottom of the conveying mechanism 1 is provided with a support column 2, which is fixedly connected to the conveying mechanism 1. The support column 2 is used to support the conveying mechanism 1, and the bottom of the support column 2 is provided with a pad that is larger than the cross-section of the support column 2, which can improve stability.

[0030] refer to Figure 1 and Figure 4 The first connecting column 4 is connected to the transmission mechanism 1 and is used to connect and fix the first fixing plate 9 and the pressure sensor 12. At the same time, it acts as a sliding groove, which allows the pressure sensor 12 and the composite pressure measuring plate 11 to complete the telescopic function. The top of the first connecting column 4 is provided with the first fixing plate 9, which is used to connect and fix the first motor 13 and the first telescopic rod 14. The first fixing plate 9 and the first connecting column 4 are fixedly connected.

[0031] refer to Figure 1 and Figure 4 A composite pressure plate 11 is provided between the first connecting columns 4, which is mainly used to evaluate the mechanical properties of composite materials under specific conditions. A first sliding groove 10 is provided inside the first connecting column 4 to allow the composite pressure plate 11 to slide up and down. The first sliding groove is provided with damping to prevent the composite pressure plate 11 from sliding excessively and to improve the stability of the sliding of the composite pressure plate 11. A pressure sensor 12 is provided at the bottom of the composite pressure plate 11. The pressure sensor 12 is a device or apparatus that can sense pressure signals and convert pressure signals into usable output electrical signals according to a certain rule.

[0032] refer to Figure 1 and Figure 4The first fixed plate 9 has a first motor 13 on both sides of its top end, and a first telescopic rod 14 on the bottom end of the first fixed plate 9 opposite to the first motor 13. The bottom end of the first telescopic rod 14 is fixedly connected to the composite pressure measuring plate 11. The working principle of the electric telescopic rod is mainly based on its motor drive system. When the motor is powered on, the rotational motion is converted into linear motion through internal gears or lead screws, thereby realizing the extension and retraction of the first telescopic rod 14. For detailed principles, please refer to the prior art shown at https: / / www.maramotor.cn / news / 6109.html.

[0033] refer to Figure 1 and Figure 4 By setting up a composite pressure plate 11 and a pressure sensor 12, when the corrugated paper is placed on the conveying mechanism 1, the bottom end of the pressure sensor 12 is extended or retracted to a position flush with the top end of the corrugated paper by the first telescopic rod 14 according to the thickness of the corrugated paper. When the top or bottom end of the corrugated paper is bent, pressure is applied to the pressure sensor 12. At this time, the pressure sensor 12 can transmit an electrical signal to the program control box 6. This method has high detection accuracy and can effectively and accurately detect the degree of bending of the corrugated paper at various points, making it highly practical.

[0034] refer to Figure 1 The support column 2 is fixedly connected to the transmission mechanism 1. The specific fixed connection method can be welding, bolting, or integral processing. The support column 2 is provided and symmetrically arranged with the transmission structure as the center. The spacing of the support column 2 along the length direction of the transmission mechanism 1 is consistent. Through the position setting of the support column 2, the support column 2 has good stability and can stably support the transmission mechanism 1 at the bottom end.

[0035] refer to Figure 1 A control panel 3 is provided on one side of the transmission mechanism 1. The control panel 3 is equipped with control buttons for controlling the device. The control buttons are evenly distributed on the control panel 3. The user can control the extension and retraction of the composite pressure plate 11, the extension and retraction of the roller rod 17, and the input and output of the electrical signal processed by the program control box 6 to the pressure sensor 12 through the control panel 3.

[0036] refer to Figures 1-3A second connecting post 5 is provided on the side of the top of the transmission mechanism 1 opposite to the first connecting post 4. The second connecting post 5 is used to slide the roller 17 and connect the second fixed plate 15. The top of the second connecting post 5 is provided with the second fixed plate 15, which is used to connect and fix the second motor 18 and the second telescopic rod 19. The second fixed plate 15 and the second connecting post 5 are fixedly connected. A program control box 6 is provided between the first connecting post 4 and the second connecting post 5. The program control box 6 includes a program control system. The program control system includes a CPU for controlling the first telescopic rod 14, the second telescopic rod 19, the first motor 13 and the second motor 18. The control function is realized through pre-programming. The program control box 6 also includes a processor for receiving the electrical signal of the pressure sensor 12 and for inputting and outputting the processed electrical signal of the pressure sensor 12.

[0037] refer to Figures 1-3 The program control chassis 6 is provided with a first fixing block 7 on the side near the first connecting post 4, and a second fixing block 8 on the side near the second connecting post 5. The first fixing block 7 and the second fixing block 8 can fix the program control chassis 6. The first fixing block 7 and the second fixing block 8 are centrally symmetrical about the program control chassis 6. This arrangement can improve the stability of fixing the program control chassis 6.

[0038] refer to Figures 1-3 One end of the first fixing block 7 is fixed to the program control box 6 by screws, and the bottom end of the first fixing block 7 is fixedly connected to the first fixing plate 9 by screws. One end of the second fixing block 8 is fixed to the program control box 6 by screws, and the bottom end of the second fixing block 8 is fixedly connected to the second fixing plate 15 by screws. The first fixing block 7 and the second fixing block 8 are used to fix the program control box 6. The screw fixing method facilitates the installation and disassembly of the program control box 6. At the same time, the first fixing block 7, the second fixing block 8 and the program control box 6 can be fixed by welding. The bottom end of the program control box 6 can be provided with a connecting plate to connect the first connecting post 4 and the second connecting post 5 for supporting the program control box 6.

[0039] refer to Figure 5 A roller bar 17 is provided between the second connecting columns 5. The function of the roller bar 17 is to roll the corrugated cardboard after inspection, so that the corrugated cardboard can be flatter. The second connecting column 5 is provided with a second sliding groove 16 for the roller bar 17 to slide up and down. The two ends of the roller bar 17 are inserted into the second sliding groove 16. The roller bar 17 slides through the sliding groove. According to the thickness of the corrugated paper, the bottom end of the roller bar 17 is extended or retracted to a position flush with the top end of the corrugated paper by the second telescopic rod 19 to roll the corrugated cardboard.

[0040] refer to Figure 5The second fixed plate 15 has a second motor 18 on both sides of its top end, and a second telescopic rod 19 on the bottom end of the second fixed plate 15 opposite to the second motor 18. The bottom end of the second telescopic rod 19 is fixedly connected to the roller rod 17. The working principle of the second telescopic rod 19 is mainly based on its second motor 18 driving it. When the second motor 18 is powered on, it converts the rotational motion into linear motion through internal gears or lead screws, thereby realizing the extension and retraction of the second telescopic rod 19. For detailed principles, please refer to the prior art shown at https: / / www.maramotor.cn / news / 6109.html.

[0041] refer to Figure 4 The two ends of the composite pressure plate 11 are inserted into the first sliding groove 10. The composite pressure plate 11 and the first sliding groove 10 are slidably connected. The first sliding groove 10 allows the composite side plate to slide while also limiting the composite pressure plate 11. Specifically, the composite pressure plate 11 and the first sliding groove 10 are designed with shapes including but not limited to trapezoids and hexagons, so that the first sliding groove 10 can limit the composite pressure plate 11 and prevent the composite pressure plate 11 from sliding out of the first sliding groove 10.

[0042] refer to Figure 4 and Figure 5 The bottom surface of the pressure sensor 12 is positioned opposite to the top surface of the transmission mechanism 1, allowing the pressure sensor 12 to directly contact the corrugated cardboard and enabling the pressure sensor 12 to test for warping. The surface of the pressure sensor 12 is smooth, preventing friction from affecting the test. The end face of the roller 17 opposite to the transmission mechanism 1 is an arc-shaped end face with a smooth surface, thus preventing damage to the corrugated cardboard due to friction.

[0043] Furthermore, when the terms "first," "second," "third," etc., are used in this application specification to describe various features, these terms are only used to distinguish these features and should not be construed as indicating or implying the correlation or relative importance between features or implicitly indicating the number of features indicated.

[0044] In addition, this application specification describes exemplary embodiments by referring to idealized exemplary cross-sectional views and / or plan views and / or perspective views. Therefore, differences from the illustrated shapes are foreseeable due to factors such as manufacturing techniques and / or tolerances. Therefore, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but should include deviations in shape caused, for example, by manufacturing processes. Thus, the regions shown in the figures are substantially schematic, and their shapes are not intended to illustrate the actual shapes of the regions of the device, nor to limit the scope of the exemplary embodiments.

Claims

1. A warping detection device for corrugated cardboard production, comprising a conveying mechanism, wherein a support column is provided at the bottom end of the conveying mechanism, characterized in that, Also includes: A first connecting column is located at the top of the transmission mechanism. A first fixing plate is provided at the top of the first connecting column. A composite pressure measuring plate is provided between the first connecting columns. A first sliding groove is provided inside the first connecting column to allow the composite pressure measuring plate to slide up and down. A first motor is provided on both sides of the top of the first fixing plate. A first telescopic rod is provided at the bottom of the first fixing plate on the side opposite to the first motor. The bottom end of the first telescopic rod is fixedly connected to the composite pressure measuring plate. A pressure sensor is provided at the bottom of the composite pressure measuring plate.

2. The warping detection device for corrugated cardboard production according to claim 1, characterized in that, The support column is fixedly connected to the transmission mechanism. The support column is provided and symmetrically arranged with the transmission structure as the center. The spacing of the support column along the length direction of the transmission mechanism is consistent.

3. The warping detection device for corrugated cardboard production according to claim 1, characterized in that, A control panel is provided on one side of the transmission mechanism. The control panel is equipped with control buttons for controlling the device. The control buttons are evenly distributed on the control panel.

4. The warping detection device for corrugated cardboard production according to claim 1, characterized in that, A second connecting column is provided on the side of the top of the transmission mechanism opposite to the first connecting column. A second fixing plate is provided on the top of the second connecting column. A program control chassis is provided between the first connecting column and the second connecting column.

5. The warping detection device for corrugated cardboard production according to claim 4, characterized in that, The program control chassis has a first fixing block on the side near the first connecting column and a second fixing block on the side near the second connecting column. The first fixing block and the second fixing block are arranged symmetrically about the program control chassis.

6. The warping detection device for corrugated cardboard production according to claim 5, characterized in that, One end of the first fixing block is fixed to the program control chassis by screws, and the bottom end of the first fixing block is fixedly connected to the first fixing plate by screws. One end of the second fixing block is fixed to the program control chassis by screws, and the bottom end of the second fixing block is fixedly connected to the second fixing plate by screws. The first fixing block and the second fixing block are used to fix the program control chassis.

7. The warping detection device for corrugated cardboard production according to claim 4, characterized in that, A roller is provided between the second connecting columns, and a second sliding groove is provided inside the second connecting column to allow the roller to slide up and down. Both ends of the roller are inserted into the second sliding groove.

8. A warping detection device for corrugated cardboard production according to claim 7, characterized in that, The second fixed plate has a second motor on both sides of its top end, and a second telescopic rod on the bottom end of the second fixed plate opposite to the second motor. The bottom end of the second telescopic rod is fixedly connected to the roller rod.

9. A warping detection device for corrugated cardboard production according to claim 1, characterized in that, Both ends of the composite pressure plate are inserted into the first sliding groove, and the composite pressure plate is slidably connected to the first sliding groove.

10. A warping detection device for corrugated cardboard production according to claim 7, characterized in that, The bottom surface of the pressure sensor is positioned opposite the top surface of the transmission mechanism, and the end face of the roller bar opposite the transmission mechanism is an arc-shaped end face with a smooth surface.

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