A corrugated cardboard humidity detection system

Abstract

The present invention discloses a humidity detection system for corrugated cardboard in the field of humidity monitoring devices, including a detection box; a balance module, a detection module, a humidity adjustment module and a control module are arranged in the detection box; the balance module is used to eliminate the interference of the traction force at both ends of the corrugated base paper on the detection area on the corrugated base paper during detection; the detection module includes a first carrier and a second carrier; the first carrier is located above the second carrier; an air-powered component for blowing air towards the bottom of the corrugated base paper is arranged on the first carrier; a ranging component is arranged on the second carrier, and the ranging component is used to collect the displacement generated by the corrugated base paper when the air flow blows towards the corrugated base paper; the humidity adjustment module is used to adjust the humidity of the corrugated base paper in the detection box; the control module is used to judge the humidity condition of the corrugated base paper based on the displacement situation collected by the ranging component and control the operation of the humidity adjustment module. This solution can achieve precise detection and control of the humidity of corrugated cardboard through the air-powered component and the ranging component.

Description

Technical Field

[0001] The present invention belongs to the field of humidity monitoring devices, and specifically relates to a corrugated cardboard humidity detection system. Background Art

[0002] As an important part of packaging materials, the quality stability of corrugated cardboard is crucial for the transportation and storage safety of products. However, the performance of corrugated cardboard is extremely vulnerable to the influence of moisture content. Whether the moisture content is too high or too low, it will cause various faults in the production and use of corrugated cardboard, such as collapsed flutes, delamination, cracks, uneven corrugation forming, etc. Therefore, accurate detection and control of the moisture content of corrugated cardboard have become the key link to ensure the quality of corrugated cardboard.

[0003] In the prior art, a hygrometer or sensor is mainly used for single-point measurement, which often fails to comprehensively reflect the overall humidity situation of corrugated cardboard. Due to the fact that corrugated cardboard may be affected by various factors during the production process, resulting in uneven humidity distribution, it is difficult for single-point measurement to accurately capture this change.

[0004] Therefore, there is an urgent need for a detection system that can synchronously detect multiple positions of corrugated cardboard and comprehensively reflect the humidity distribution of corrugated cardboard. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a corrugated cardboard humidity detection system, which can achieve accurate detection and control of the humidity of corrugated cardboard, and improve production efficiency and product quality.

[0006] To achieve the above purpose, the technical solution of the present invention is as follows: A corrugated cardboard humidity detection system includes a detection box; a balance module, a detection module, a humidity adjustment module, and a control module are arranged in the detection box; the balance module is used to eliminate the interference of the traction force at both ends of the corrugated base paper on the detection area on the corrugated base paper during detection; the detection module includes a first carrier and a second carrier; the first carrier is located above the second carrier; a pneumatic component for blowing air towards the bottom of the corrugated base paper is arranged on the second carrier; a ranging component is arranged on the first carrier, and the ranging component is used to collect the displacement generated by the corrugated base paper when the air flow blows towards the corrugated base paper; the humidity adjustment module is used to adjust the humidity of the corrugated base paper in the detection box; the control module is used to judge the humidity situation of the corrugated base paper based on the displacement situation collected by the ranging component and control the operation of the humidity adjustment module.

[0007] The above scheme has the following beneficial effects:

[0008] 1. In this solution, the corrugated base paper to be detected is fed into the detection box. The traction force at both ends of the corrugated base paper is eliminated by the balance module. The pneumatic component blows air to one side of the corrugated base paper, and then the displacement generated by the corrugated base paper is detected by the ranging component. The control module judges the humidity condition of the current position (the position where air is blown) of the corrugated base paper according to the displacement situation, and controls the humidity adjustment module to regulate the humidity of the corrugated base paper.

[0009] In this solution, the pneumatic component blows air to one side of the corrugated base paper, and the displacement generated by it is detected by the ranging component. Compared with the traditional single-point measurement, this measurement method can more accurately reflect the humidity change of the corrugated board. Even the slightest change in displacement can be accurately captured, thus improving the accuracy and reliability of the detection.

[0010] 2. In this solution, the control module can judge the humidity condition of the corrugated base paper in real time according to the displacement data collected by the ranging component, and immediately start the humidity adjustment module for regulation. This dynamic regulation mechanism can ensure that the corrugated board maintains the best humidity state during production and use, and avoid quality problems such as corrugation collapse, delamination, cracks, and uneven corrugation formation.

[0011] Furthermore, several pneumatic components, several ranging components and several humidity adjustment modules are arranged in the detection box; the pneumatic components, ranging components and humidity adjustment modules are arranged in a supporting manner along the moving direction of the corrugated base paper.

[0012] Beneficial effects: By arranging multiple pneumatic components and ranging components along the moving direction of the corrugated base paper in the detection box, the present invention realizes the synchronous detection of multiple positions of the corrugated board. Compared with single-point or a few-point detection, this multi-point synchronous detection method can more comprehensively and accurately reflect the humidity distribution of the corrugated board. It avoids the one-sidedness that may be brought by single-point detection and improves the accuracy and reliability of the detection results.

[0013] The pneumatic components, ranging components and humidity adjustment modules arranged along the moving direction of the corrugated base paper form a continuous monitoring and regulation system. When the humidity of the corrugated base paper in the detection area needs to be regulated, the humidity adjustment module will immediately intervene. After the regulation is completed, the subsequent pneumatic components and ranging components will re-inspect this area to ensure that the humidity regulation result meets the standard. This continuous monitoring and regulation method ensures the humidity stability of the corrugated board during the production process, thus improving the product quality.

[0014] Furthermore, the balance module includes a first guide wheel, a pair of rollers, a second guide wheel, an adjusting rod, and a guide post; the first guide wheel, the pair of rollers, the second guide wheel, the adjusting rod, and the guide post are symmetrically distributed in sequence within the detection box; the first guide wheels are all rotatably connected to the side wall of the detection box; the pair of rollers is used to provide the traction force for the corrugated base paper to move within the detection box; the second guide wheels are all rotatably connected to the side wall of the detection box; the adjusting rod is used to cause the corrugated base paper to form valleys; the guide post is used to cause the corrugated base paper to form peaks.

[0015] Beneficial effects: Through the ingenious arrangement and combination of the first guide wheel, the second guide wheel, the adjusting rod, and the guide post, the balance module of the present invention successfully places the middle area of the corrugated base paper (i.e., the area between the guide posts) in a natural relaxation state. In this state, the traction force can only act on the corrugated base paper in the horizontal direction, and is perpendicular to the direction of the gravity of the corrugated base paper. This design effectively eliminates the potential influence of the traction force on the humidity detection result of the corrugated base paper, and improves the accuracy and reliability of the detection.

[0016] The combined use of the adjusting rod and the guide post not only causes valleys and peaks to be formed on the corrugated base paper during the detection process, but also precisely controls the shape of the corrugations. This precise control helps to maintain the consistency and stability of the corrugated base paper during the detection process, thereby further improving the accuracy and reliability of the humidity detection.

[0017] Furthermore, corrugation shape detection components are also symmetrically arranged within the detection box; the corrugation shape detection components include fixed columns, and buffer grooves are provided within the fixed columns; a second spring is provided within the buffer grooves; a sliding rod is provided at the bottom of the second spring; the sliding rod is in sliding fit with the buffer grooves; a ball head is provided at the bottom of the sliding rod; a pressure sensor is provided at the bottom of the ball head; the pressure sensor is electrically connected to the control module; the control module is also used to control the operation of the pair of rollers based on the information collected by the pressure sensor.

[0018] Beneficial effects: By symmetrically arranging the corrugation shape detection components within the detection box, the present invention can monitor the pressure conditions at both ends of the middle position of the corrugated base paper in real time. This design helps to determine whether the corrugated base paper is in a relaxed state, thereby ensuring that the corrugated base paper will not generate errors due to being taut during the humidity detection process. If the shape of the corrugated base paper is relatively taut, the pressure sensor will be able to quickly collect the pressure change and feedback it to the control module.

[0019] Based on the information collected by the pressure sensor, the control module can intelligently adjust the rotation speed of the corresponding pair of rollers. When the corrugated base paper is in a taut state, the control module will reduce the rotation speed of the pair of rollers, thereby reducing the traction force and avoiding damage to the middle position of the corrugated base paper due to excessive stretching. This intelligent adjustment mechanism ensures the stability and safety of the corrugated base paper during the detection process.

[0020] The buffer groove, second spring, slide bar and ball head design in the corrugated form detection component form an effective buffer system. When the corrugated base paper is too tight, it will squeeze the ball head, thereby pushing the slide bar along the buffer groove. In this process, the second spring plays a buffering role, which can relieve the restraint of the ball head on the corrugated base paper, preventing the tension from continuing to develop and causing damage to the corrugated base paper. This design not only protects the corrugated base paper, but also improves the reliability and durability of the detection system.

[0021] Furthermore, the pneumatic component includes a fan and a gun nozzle; a plurality of ventilation ducts are arranged on the top of the second carrier; the fan is located in the ventilation duct; and the top of the ventilation duct is connected to the gun nozzle.

[0022] Beneficial effect: The pneumatic assembly consists of a fan and a gun nozzle, which are connected through a ventilation duct on the top of the second carrier. When the corrugated paper passes through the second carrier, the fan continues to run, blowing the outside air to the bottom of the corrugated paper through the ventilation duct and the gun nozzle.

[0023] Furthermore, the ranging component includes a contact block; the mass of the contact block is lower than a preset value; a plurality of detection cavities are arranged at the bottom of the first carrier; the contact block and the detection cavity are slidably matched; a capacitor plate is arranged at the top of the contact block and the top of the detection cavity; and the capacitor plate is electrically connected to the control module.

[0024] Beneficial effects: The distance measuring component mainly includes a contact block, a detection cavity and a capacitor plate. The mass of the contact block is carefully designed to be lower than the preset value to ensure that it can sensitively respond to external forces (such as the impact force when the corrugated base paper is blown up by the pneumatic component). Several detection cavities are set at the bottom of the first carrier, and the contact block slides with these detection cavities to allow the contact block to move up and down when subjected to external forces. Capacitor plates are installed on the top of the contact block and the top of the detection cavity. These capacitor plates are electrically connected to the control module for real-time monitoring of the position changes of the contact block.

[0025] When the corrugated paper is blown upward by the wind generated by the pneumatic component, it will come into contact with the contact block and push the contact block to slide upward. Since the weight of the corrugated paper will be different under different humidity conditions, the distance the contact block slides upward can reflect the humidity of the corrugated paper. The higher the humidity, the lower the weight of the corrugated paper, the smaller the pushing effect on the contact block, and the smaller the distance the contact block moves upward; conversely, the lower the humidity, the greater the distance the contact block moves upward. This design enables the system to monitor the humidity changes of the corrugated paper in real time, providing strong support for quality control in the production process.

[0026] By using the capacitor plate to monitor the position change of the contact block, the system can achieve high-precision displacement measurement. The electrical connection between the capacitor plate and the control module ensures real-time transmission and processing of data, thereby improving the sensitivity and accuracy of detection.

[0027] Further, the humidity adjustment component includes an electric heating coil and a nozzle; the electric heating coil is located inside the ventilation duct; the electric heating coil is electrically connected to the control module; the nozzle is used to spray water vapor onto the corrugated base paper; the nozzle is electrically connected to the control module.

[0028] Beneficial effects: The humidity adjustment component mainly includes an electric heating coil and a nozzle. The electric heating coil is ingeniously installed inside the ventilation duct and is electrically connected to the control module to receive control signals and perform heating operations. The nozzle is responsible for spraying water vapor onto the corrugated base paper and is also electrically connected to the control module to ensure water spraying operations as needed.

[0029] The humidity adjustment component can perform intelligent adjustment according to the real-time humidity condition of the corrugated base paper. When the humidity is high, the control module will activate the electric heating coil, heat the air inside the ventilation duct, and use the fan to blow the hot air towards the corrugated base paper to accelerate the evaporation of the internal moisture, thereby reducing the humidity. On the contrary, when the humidity is low, the control module will control the nozzle to spray water vapor onto the top of the corrugated base paper to increase its humidity. This intelligent adjustment mechanism ensures that the corrugated base paper always maintains an appropriate humidity level during the production process, which helps to improve the overall quality of the product.

[0030] Further, a number of smooth support blocks are also provided on the top of the second carrier; the smooth support blocks are used to support the movement of the corrugated base paper.

[0031] Beneficial effects: The smooth support blocks are made of wear-resistant and smooth materials to reduce the friction with the corrugated base paper. This design helps to reduce the wear and damage of the corrugated base paper during movement, extend its service life. At the same time, reducing friction can also reduce the operating noise of the detection system and improve the comfort of the working environment.

[0032] Further, it also includes a tension adjustment component; the tension adjustment component includes a limit block and a driving member; the limit block is provided on the top of the adjustment rod; a driving wheel is provided on the top of the adjustment rod; the driving wheel is rotatably connected to the inner wall of the detection box; the driving member is used to drive the driving wheel to rotate; the driving member is electrically connected to the control module; a chute is provided inside the adjustment rod; a first spring is provided inside the chute; the bottom of the first spring is provided with a connecting rod; the connecting rod is slidably matched with the chute; the bottom of the connecting rod is rotatably connected to a driven wheel.

[0033] Beneficial effects: The deflection angle of the adjustment rod is intelligently adjusted through the control module, thereby precisely controlling the tension degree of the corrugated base paper. This intelligent adjustment mechanism helps to ensure that the corrugated base paper maintains an appropriate tension state during the production process, avoiding production problems such as paper jams and wrinkles caused by improper tension, and thus improving the overall quality of the product.

[0034] Further, it further includes a monitoring module; the monitoring module is used to monitor the running speed of the counter-rotating rollers in real time; the control module is further used to judge the length of the corrugated base paper in the detection box based on the data collected by the monitoring module, and adjust the running of the counter-rotating rollers and the driving member.

[0035] Beneficial effects: By monitoring the running speed of the counter-rotating rollers in real time and accurately judging the length of the corrugated base paper, the control module can ensure that the corrugated base paper is conveyed and processed at the correct speed and length (the length side corresponds to the tightness of the corrugated base paper in the detection box) during the humidity detection process. Description of the Drawings

[0036] Figure 1 It is a three-dimensional structure schematic diagram of a corrugated board humidity detection system of the present invention.

[0037] Figure 2 is Figure 1 the top view of

[0038] Figure 3 is Figure 2 the sectional view taken along line A-A in

[0039] Figure 4 is Figure 3 the partial enlarged schematic diagram at P in

[0040] Figure 5 It is a schematic diagram of the internal structure of the adjusting rod.

[0041] Figure 6 It is a schematic diagram of the internal structure of the fixing column.

[0042] The reference numerals in the accompanying drawings of the specification include: 1, detection box; 2, opening; 3, corrugated base paper; 4, first guide wheel; 5, counter-rotating rollers; 6, second guide wheel; 7, adjusting rod; 8, guide post; 9, fixing column; 10, first carrier; 11, second carrier; 12, nozzle; 13, detection cavity; 14, capacitor plate; 15, contact block; 16, ventilation duct; 17, gun nozzle; 18, fan; 19, electric heating coil; 20, smooth support block; 701, limit block; 702, driving wheel; 703, driven wheel; 704, connecting rod; 705, chute; 706, first spring; 901, buffer groove; 902, second spring; 903, sliding rod; 904, ball head; 905, pressure sensor. Detailed Embodiments

[0043] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0045] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0046] The following is a more detailed description through specific embodiments:

[0047] Embodiment 1 is basically as shown in the attached Figures 1-6 figures: A corrugated cardboard humidity detection system mainly includes a detection box 1. In this embodiment, the detection box 1 is installed on the production line of corrugated base paper 3. In this embodiment, the corrugated base paper 3 is in a roll shape.

[0048] A balance module, a detection module, a humidity adjustment module, and a control module are provided inside the detection box 1.

[0049] The balance module is used to eliminate the interference of the traction forces at both ends of the corrugated base paper 3 during detection on the detection area on the corrugated base paper 3.

[0050] Specifically, as shown in the attached Figure 3 figures, the balance module includes a first guide wheel 4, a pair of rollers 5, a second guide wheel 6, an adjusting rod 7, and a guide post 8; the first guide wheel 4, the pair of rollers 5, the second guide wheel 6, the adjusting rod 7, and the guide post 8 are symmetrically distributed in sequence inside the detection box 1, specifically symmetrically arranged with the detection module as the center; the first guide wheels 4 are all rotatably connected to the side walls of the detection box 1. In this embodiment, the first guide wheels 4 are located at the uppermost position; the pair of rollers 5 is used to provide the traction force for the movement of the corrugated base paper 3 inside the detection box 1. The pair of rollers 5 is located below the first guide wheels 4. In this embodiment, the traction force generated by the pair of rollers 5 is vertically downward; the second guide wheels 6 are all rotatably connected to the side walls of the detection box 1. In this embodiment, the second guide wheels 6 are mainly used to guide the corrugated base paper 3 towards the detection module; the adjusting rod 7 is used to cause the corrugated base paper 3 to form valleys. Specifically, as shown in the attached Figure 3 figures, the adjusting rod 7 is located above the corrugated base paper 3, and a tension adjustment assembly is also provided on the adjusting rod 7; as shown in the attached Figure 5As shown, the tension adjustment assembly includes a limit block 701 and a driving member; the limit block 701 is provided at the top of the adjusting rod 7. In this embodiment, the limit block 701 is in an inverted "V" shape and is fixedly connected to the inner wall of the detection box 1 by welding; a driving wheel 702 is fixedly connected to the top of the adjusting rod 7; the driving wheel 702 is rotatably connected to the inner wall of the detection box 1; the driving member is used to drive the driving wheel 702 to rotate. In this embodiment, the driving member is a servo motor, and the output shaft of the servo motor is fixedly connected to the driving wheel 702 axially by welding; the driving member is electrically connected to the control module; a chute 705 is formed inside the bottom of the adjusting rod 7; a first spring 706 is arranged in the chute 705, and the top of the first spring 706 is fixedly connected to the top wall of the chute 705 by welding; a connecting rod 704 is arranged at the bottom of the first spring 706, and the connecting rod 704 is fixedly connected to the first spring 706 by welding; the connecting rod 704 is slidably matched with the chute 705; a driven wheel 703 is rotatably connected to the bottom of the connecting rod 704. As shown in the appendix Figure 3 and the appendix Figure 4 As shown, the guide post 8 is used to generate wave crests on the corrugated base paper 3. In this embodiment, the guide post 8 is located at the bottom of the corrugated base paper 3, and the bottom of the guide post 8 is fixedly connected to the inner wall of the detection box 1 by welding.

[0051] The detection module includes a first carrier 10 and a second carrier 11; a plurality of smooth support blocks 20 are fixedly connected to the top of the second carrier 11; the smooth support blocks 20 are used to support the movement of the corrugated base paper 3, and the smooth support blocks 20 are arranged along the moving direction of the corrugated base paper 3. As shown in the appendix Figure 3 and the appendix Figure 4 As shown, the first carrier 10 is located above the second carrier 11; a pneumatic assembly for blowing air to the bottom of the corrugated base paper 3 is arranged on the second carrier 11. Specifically, 4 groups of pneumatic assemblies are arranged in this embodiment; the pneumatic assembly includes a fan 18 and a nozzle 17; a plurality of ventilation ducts 16 are formed at the top of the second carrier 11. In this embodiment, both ends of the ventilation duct 16 communicate with the outside from the top and side of the second carrier 11 respectively; the fans 18 are respectively installed in the ventilation ducts 16; the top of the ventilation duct 16 is communicated with the nozzle 17, and the nozzle 17 is fixed to the second carrier 11 by screws.

[0052] A ranging assembly is arranged on the first carrier 10. The ranging assembly is used to collect the displacement (mainly the displacement in the gravity direction) generated by the corrugated base paper 3 when the air flow blows towards the corrugated base paper 3. In this embodiment, 4 groups of ranging assemblies are arranged in total. Specifically, the ranging assembly includes a touch block 15; the mass of the touch block 15 is lower than a preset value (that is, the touch block 15 is lighter). In this embodiment, the purpose of setting the mass of the touch block 15 lower than the preset value is mainly to quickly respond to the force exerted on the touch block 15 when the corrugated base paper 3 moves upward; a plurality of detection cavities 13 are formed at the bottom of the first carrier 10; the touch blocks 15 are all slidably matched with the detection cavities 13; as shown in the appendix Figure 4As shown, a capacitor plate 14 is adhesively fixed to the top of the contact block 15 and the top of the detection chamber 13; the capacitor plate 14 is electrically connected to the control module.

[0053] The humidity adjustment module is used to adjust the humidity of the corrugated base paper 3 in the detection box 1. Specifically, the humidity adjustment component includes an electric heating coil 19 and a spray head 12; the electric heating coil 19 is welded and fixed inside the ventilation duct 16; the electric heating coil 19 is electrically connected to the control module; the spray head 12 is used to spray water vapor onto the corrugated base paper 3. In this embodiment, the spray head 12 is fixed to the bottom of the first carrier 10 by screws; the spray head 12 is electrically connected to the control module.

[0054] In this embodiment, the pneumatic component, the ranging component, and the humidity adjustment module are arranged in a supporting manner along the moving direction of the corrugated base paper 3. That is, a single pneumatic component, ranging component, and humidity adjustment module form a unit, and each unit has the function of detecting and adjusting humidity. At the same time, the subsequent unit can re-inspect the corrugated base paper 3 after the previous unit has detected or adjusted the humidity.

[0055] The control module is used to judge the humidity condition of the corrugated base paper 3 based on the displacement situation collected by the ranging component, that is, the distance between the capacitor plates 14, and control the operation of the humidity adjustment module.

[0056] The specific implementation process is as follows:

[0057] The corrugated base paper 3 is passed through the inside of the detection box 1 by the traction of the counter-rollers 5. In this embodiment, openings 2 are provided on both sides of the detection box 1, and the corrugated cardboard box extends into the inside of the detection box 1 through the openings 2. By rotating the counter-rollers 5, the corrugated base paper 3 moves on the first guide wheel 4, the second guide wheel 6, the guide post 8, the fixed post 9, and the smooth support block 20. The left counter-roller 5 conveys the corrugated base paper 3 into the detection box 1, and the right counter-roller 5 conveys the corrugated base paper 3 out of the detection box 1. Through the ingenious arrangement and combination of the first guide wheel 4, the second guide wheel 6, the adjusting rod 7, and the guide post 8, the middle area of the corrugated base paper 3 (that is, the area between the guide posts 8, and this area is the detection area) is placed in a natural relaxation state.

[0058] When detecting the humidity of the corrugated base paper 3, the fan 18 is started. The fan 18 will continuously generate a fixed wind force. When the corrugated base paper 3 passes through the nozzle 17 between the smooth support blocks 20, the wind force will overcome the gravity of the corrugated base paper 3 at this position (specifically, the position directly opposite the nozzle 17), and lift the corrugated base paper 3 upward. Since the bottom of the contact block 15 contacts the top of the corrugated base paper 3, when the corrugated base paper 3 arches upward, it will drive the contact block 15 to move upward. The contact block 15 slides within the detection cavity 13, changing the distance between the capacitor plates 14. The control module calculates the distance between the capacitor plates 14 by obtaining the capacitance change of the capacitor plates 14. If the distance exceeds the preset range, it indicates that the corrugated base paper 3 is lighter and has a lower humidity. The control module then controls the nozzle 12 to operate, and the nozzle 12 sprays water vapor onto the corrugated base paper 3 to increase the humidity of the corrugated base paper 3. When the distance is lower than the preset range, it indicates that the corrugated base paper 3 is heavier and has a higher humidity. The control module then controls the heating coil 19 of the next unit (i.e., the heating coil 19 behind in the moving direction of the corrugated base paper 3) to operate, so that the air blown out from the next ventilation duct 16 is hot air, accelerating the evaporation of the moisture inside the corrugated base paper 3, thereby reducing the humidity. When the area with adjusted humidity passes through the next nozzle 17, the above process is repeated to recheck this area until the humidity of the corrugated base paper 3 meets the standard (i.e., the distance is within the preset range).

[0059] The difference between the second embodiment and the above-mentioned first embodiment is only that a corrugated shape detection component is symmetrically arranged in the detection box 1; the corrugated shape detection component includes a fixed column 9, and a buffer groove 901 is opened in the fixed column 9; a second spring 902 is arranged in the buffer groove 901, and the top of the second spring 902 is welded and fixed to the inner wall of the top of the buffer groove 901; a sliding rod 903 is welded and fixed to the bottom of the second spring 902; the sliding rod 903 is slidably matched with the buffer groove 901; a ball head 904 is welded and fixed to the bottom of the sliding rod 903 to facilitate the corrugated base paper 3 to slide along the curved surface of the ball head 904; a pressure sensor 905 is embedded at the bottom of the ball head 904; the pressure sensor 905 is electrically connected to the control module; the control module is also used to control the operation of the counter-rollers 5 based on the information collected by the pressure sensor 905.

[0060] Specific implementation process: When the pressure sensor 905 detects a pressure change, it indicates that the corrugated base paper 3 is in close contact with the ball head 904, and at this time, the corrugated base paper 3 is in a taut state. If the left pressure sensor 905 detects a pressure change, the control module controls the left counter-roller 5 to increase the rotation speed. If the right pressure sensor 905 detects a pressure change, the control module controls the right counter-roller 5 to decrease the rotation speed.

[0061] Embodiment 3 is different from the above Embodiment 2 only in that it further includes a monitoring module. The monitoring module is used to monitor the running speed of the counter-rollers 5 in real time. In this embodiment, the monitoring module is a rotational speed sensor, which is installed at the output end of each counter-roller 5; the control module is further used to judge the length of the corrugated base paper 3 in the detection box 1 based on the data collected by the monitoring module, and adjust the operation of the counter-rollers 5 and the driving member.

[0062] Specific implementation process: For example, if the left counter-roller 5 inputs the corrugated base paper 3 at a speed of 0.1 m / s and the right counter-roller 5 outputs the corrugated base paper 3 at a speed of 0.1 m / s, then the length of the corrugated base paper 3 in the detection box 1 will remain unchanged. If the left counter-roller 5 has a power fluctuation due to various factors and inputs the corrugated base paper 3 at a speed of 0.2 m / s at this time, then the length of the corrugated base paper 3 in the detection box 1 will gradually increase and accumulate in the detection box 1. At this time, the control module will increase the rotational speed of the right counter-roller 5 or decrease the rotational speed of the left counter-roller 5, or the control module controls the driving member to operate. The driving member drives the driving wheel 702 to rotate, and then the adjusting rod 7 deflects, so as to adjust the height of the wave valley. The higher the wave valley height, the flatter the corrugated base paper 3 between the second guide wheel 6 and the guide post 8, that is, the shorter the length of the corrugated base paper 3 passing between the second guide wheel 6 and the guide post 8. The higher the wave valley height, the more tortuous the corrugated base paper 3 between the second guide wheel 6 and the guide post 8, and the longer its unfolded length. In this embodiment, when the adjusting rod 7 deflects to the right, the corrugated base paper 3 is flatter; when it deflects to the left, the corrugated base paper 3 is more tortuous; therefore, the control module controls the adjusting rod 7 to deflect to the left, so as to increase the length of the corrugated base paper 3 between the second guide wheel 6 and the guide post 8, thereby alleviating the accumulation of the corrugated base paper 3.

[0063] The above are only embodiments of the present invention, and common knowledge such as specific structures and / or characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be subject to the content of its claims, and the specific implementation manners and the like described in the specification can be used to explain the content of the claims.

Claims

1. A corrugated cardboard humidity detection system, comprising a detection box (1), characterized in that: Inside the detection box (1), a balance module, a detection module, a control module, and several humidity adjustment modules are provided; the balance module is used to eliminate the interference of the traction forces at both ends of the corrugated base paper (3) during detection on the detection area of the corrugated base paper (3); the detection module includes a first carrier (10) and a second carrier (11); the first carrier (10) is located above the second carrier (11); several pneumatic components for blowing air towards the bottom of the corrugated base paper (3) are provided on the second carrier (11); several ranging components are provided on the first carrier (10), and the ranging components are used to collect the displacement generated by the corrugated base paper (3) when the air flow blows towards the corrugated base paper (3); the humidity adjustment module is used to adjust the humidity of the corrugated base paper (3) inside the detection box (1); the control module is used to judge the humidity condition of the corrugated base paper (3) based on the displacement situation collected by the ranging components and control the operation of the humidity adjustment module; The pneumatic components, the ranging components, and the humidity adjustment modules are arranged in a matching manner along the moving direction of the corrugated base paper (3).

2. The corrugated cardboard humidity detection system according to claim 1, wherein: The balance module includes a first guide wheel (4), a pair of rollers (5), a second guide wheel (6), an adjusting rod (7), and a guide post (8); the first guide wheel (4), the pair of rollers (5), the second guide wheel (6), the adjusting rod (7), and the guide post (8) are symmetrically distributed in sequence inside the detection box (1); the first guide wheels (4) are all rotatably connected to the side walls of the detection box (1); the pair of rollers (5) is used to provide the traction force for the movement of the corrugated base paper (3) inside the detection box (1); the second guide wheels (6) are all rotatably connected to the side walls of the detection box (1); the adjusting rod (7) is used to make the corrugated base paper (3) generate valleys; the guide post (8) is used to make the corrugated base paper (3) generate peaks.

3. The corrugated cardboard humidity detection system according to claim 2, characterized in that: Corrugation shape detection components are also symmetrically arranged inside the detection box (1); the corrugation shape detection components include a fixed column (9), and a buffer groove (901) is provided inside the fixed column (9); a second spring (902) is provided inside the buffer groove (901); a sliding rod (903) is provided at the bottom of the second spring (902); the sliding rod (903) is slidably matched with the buffer groove (901); a ball head (904) is provided at the bottom of the sliding rod (903); a pressure sensor (905) is provided at the bottom of the ball head (904); the pressure sensor (905) is electrically connected to the control module; the control module is also used to control the operation of the pair of rollers (5) based on the information collected by the pressure sensor (905).

4. The corrugated cardboard humidity detection system according to claim 3, wherein: The pneumatic components include a fan (18) and a nozzle (17); several ventilation ducts (16) are provided on the top of the second carrier (11); the fan (18) is located inside the ventilation ducts (16); the top of the ventilation ducts (16) is communicated with the nozzle (17).

5. The corrugated cardboard humidity detection system according to claim 4, characterized in that: The ranging components include a touch block (15); the mass of the touch block (15) is lower than a preset value; several detection cavities (13) are provided at the bottom of the first carrier (10); the touch block (15) is slidably matched with the detection cavities (13); capacitor plates (14) are provided at the top of the touch block (15) and the top of the detection cavities (13); the capacitor plates (14) are electrically connected to the control module.

6. The corrugated cardboard humidity detection system according to claim 5, wherein: The humidity adjustment component includes an electric heating coil (19) and a spray head (12); the electric heating coil (19) is located in the ventilation duct (16); the electric heating coil (19) is electrically connected to the control module; the spray head (12) is used to spray water vapor onto the corrugated base paper (3); the spray head (12) is electrically connected to the control module.

7. The corrugated cardboard humidity detection system according to claim 6, wherein: A number of smooth support blocks (20) are further provided on the top of the second carrier (11); the smooth support blocks (20) are used to support the movement of the corrugated base paper (3).

8. The corrugated cardboard humidity detection system according to claim 7, wherein: It further includes a tension adjustment component; the tension adjustment component includes a limit block (701) and a driving member; the limit block (701) is provided on the top of the adjusting rod (7); a driving wheel (702) is provided on the top of the adjusting rod (7); the driving wheel (702) is rotatably connected to the inner wall of the detection box (1); the driving member is used to drive the driving wheel (702) to rotate; the driving member is electrically connected to the control module; a sliding groove (705) is provided in the adjusting rod (7); a first spring (706) is provided in the sliding groove (705); a connecting rod (704) is provided at the bottom of the first spring (706); the connecting rod (704) is slidably matched with the sliding groove (705); the bottom of the connecting rod (704) is rotatably connected to a driven wheel (703).

9. The corrugated cardboard humidity detection system according to claim 8, characterized in that: It further includes a monitoring module; the monitoring module is used to monitor the running speed of the counter-rollers (5) in real time; the control module is further used to judge the length of the corrugated base paper (3) in the detection box (1) based on the data collected by the monitoring module, and adjust the running of the counter-rollers (5) and the driving member.

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