Corrugated paper conveying tension control system

Abstract

The utility model provides a corrugated paper conveying tension control system which comprises a body paper frame, a tension control device and a tension control device. The corrugating machine main body is used for carrying out traction and corrugation pressing treatment on raw paper; the at least one tension sensor system is arranged on the body paper conveying path and is used for monitoring the tension of the body paper in real time; the intelligent controller is connected with the tension sensor system and used for receiving the tension data and generating an adjusting instruction according to preset parameters; and the variable-frequency and variable-speed motors are respectively arranged at the traction parts of the raw paper frame and the corrugating machine main body and are used for adjusting the unwinding speed and the traction speed according to instructions of the intelligent controller. According to the corrugated paper conveying tension control system, the production quality of corrugated boards is remarkably improved, the rejection rate is reduced, meanwhile, manual intervention is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated paper production equipment, and in particular to a corrugated paper conveying tension control system. Background Technology

[0002] In the corrugated paper production process, the corrugating machine is one of the key pieces of equipment. The base paper undergoes processes such as corrugating and bonding in the corrugating machine to form corrugated board. However, currently, there are many problems with the tension control of the base paper in the corrugated paper production process. On the one hand, traditional corrugating machines mostly rely on manual experience to adjust the tension of the base paper, which is not only inefficient but also makes it difficult to guarantee the accuracy and stability of tension control. On the other hand, the tension of the base paper fluctuates constantly due to factors such as equipment vibration and speed changes during production. Unstable base paper tension can lead to a series of serious consequences. For example, when the tension is too high, the base paper is easily torn, causing production interruptions; while when the tension is too low, it will result in poor corrugation formation, inconsistent corrugation height, and consequently uneven board thickness, seriously affecting the quality of the corrugated board, increasing the scrap rate, and raising production costs. Therefore, developing a corrugating machine with an intelligent tension control system that can accurately and automatically control the tension of the base paper is of significant practical importance. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a corrugated paper conveying tension control system. To achieve the above objectives, this utility model adopts the following technical solution:

[0004] A corrugated paper conveying tension control system, comprising:

[0005] Paper holders are used for placing and releasing paper.

[0006] The main body of the corrugating machine is used for traction and corrugating of the base paper;

[0007] At least one tension sensor system is installed on the paper feed path to monitor the tension of the paper in real time;

[0008] An intelligent controller, connected to the tension sensor system, is used to receive tension data and generate adjustment commands based on preset parameters;

[0009] Variable frequency speed control motors are installed in the traction parts of the paper tray and the corrugating machine body, respectively, to adjust the unwinding speed and traction speed according to the instructions of the intelligent controller.

[0010] Furthermore, the tension sensor system has two units, which are respectively located adjacent to the paper tray and the corrugating machine body.

[0011] Furthermore, the tension sensor system includes a bracket, two first traction rollers, a second traction roller, and a telescopic tension sensor. The second traction roller is located in the middle of the bracket, and the two first traction rollers are located on both sides of the second traction roller. The telescopic tension sensor is installed between the second traction roller and the bracket. The raw paper is sequentially passed through the bottom of the first traction roller, the top of the second traction roller, and the bottom of the other first traction roller.

[0012] Furthermore, the telescopic cylindrical tension sensor includes an outer cylinder, an inner cylinder, a displacement sensor, and a signal conditioning module. The outer cylinder is made of high-strength aluminum alloy and is fixed at one end to a bracket. The inner cylinder is built into the outer cylinder and can move telescopically within the outer cylinder. The displacement sensor is installed between the inner and outer cylinders to measure the telescopic displacement of the inner cylinder and convert the displacement signal into an electrical signal. The signal conditioning module is connected to the displacement sensor and is used to amplify, filter, and perform analog-to-digital conversion on the electrical signal.

[0013] Furthermore, the bracket is provided with a sliding groove, in which the first traction roller is slidably connected and fixed to the bracket by screws.

[0014] Furthermore, the intelligent controller adopts an industrial-grade programmable logic controller, which has data processing and control functions, and pre-sets the optimal tension value range of the base paper under different production process conditions.

[0015] Furthermore, it also includes several third traction rollers, which are evenly arranged on the paper conveying path to traction the paper.

[0016] Furthermore, it also includes a fourth traction roller, which has two roller bodies arranged side by side, with the raw paper passing between the roller bodies.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By installing two tension sensor systems adjacent to the paper stack and the corrugating machine body respectively, the tension changes along the paper conveying path can be comprehensively monitored, ensuring the accuracy of data acquisition. The unique structural design of the tension sensor system allows the tension generated during paper conveying to be accurately captured and converted into electrical signals. These signals are then processed by the signal conditioning module and transmitted to the intelligent controller. The intelligent controller uses an industrial-grade programmable logic controller (PLC) with powerful data processing capabilities. It can quickly generate adjustment commands based on a preset optimal tension range and adjust the unwinding and traction speeds of the paper in real time via a variable frequency speed-regulating motor, thereby achieving closed-loop tension control. Overall, this corrugated paper conveying tension control system significantly improves the production quality of corrugated board, reduces the scrap rate, and simultaneously reduces manual intervention and increases production efficiency. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0021] Figure 2 This is a top view of the tension sensor system according to an embodiment of the present invention.

[0022] In the above attached figures: 1. Paper holder; 2. Corrugating machine body; 3. Tension sensor system; 31. Support; 32. First traction roller; 33. Second traction roller; 34. Telescopic cylindrical tension sensor; 35. Screw; 36. Variable frequency speed control motor; 4. Third traction roller; 5. Fourth traction roller. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0024] This utility model provides, for example Figure 1 The corrugated paper conveying tension control system shown includes:

[0025] Paper holder 1, used for placing and releasing paper;

[0026] The corrugating machine body 2 is used for traction and corrugating of the base paper;

[0027] At least one tension sensor system 3 is installed on the paper feed path to monitor the tension of the paper in real time;

[0028] The intelligent controller is connected to the tension sensor system 3 and is used to receive tension data and generate adjustment commands according to preset parameters.

[0029] The variable frequency speed control motor 4 is installed in the traction part of the paper holder 1 and the corrugating machine body 2 respectively, and is used to adjust the unwinding speed and traction speed according to the instructions of the intelligent controller.

[0030] To facilitate accurate measurement of the tension of the base paper, such as Figure 1 As shown, two tension sensor systems 3 are installed, one adjacent to the paper tray 1 and the other to the corrugator body 2. By installing two tension sensor systems 3 adjacent to the paper tray 1 and the corrugator body 2 respectively, the tension changes along the paper conveying path can be comprehensively monitored, ensuring the accuracy of data acquisition.

[0031] In this embodiment, as Figure 1 , Figure 2As shown, the tension sensor system 3 includes a bracket 31, two first traction rollers 32, a second traction roller 33, and a telescopic tension sensor 34. The second traction roller 33 is located in the middle of the bracket 31, and the two first traction rollers 32 are located on both sides of the second traction roller 33. The telescopic tension sensor is installed between the second traction roller 33 and the bracket 31. The raw paper is sequentially passed through the bottom of the first traction roller 32, the top of the second traction roller 33, and the bottom of the other first traction roller 32. This facilitates the traction of the raw paper and enables real-time and accurate measurement of the paper tension.

[0032] In this embodiment, as Figure 1 As shown, the telescopic cylindrical tension sensor 34 includes an outer cylinder, an inner cylinder, a displacement sensor, and a signal conditioning module. The outer cylinder is made of high-strength aluminum alloy and is fixed at one end to a bracket 31. The inner cylinder is built into the outer cylinder and can telescopically move within it, with one end fixed to the second traction roller 33. The displacement sensor is installed between the inner and outer cylinders to measure the telescopic displacement of the inner cylinder and convert the displacement signal into an electrical signal. The signal conditioning module is connected to the displacement sensor and is used to amplify, filter, and perform analog-to-digital conversion on the electrical signal. The tension generated by the raw paper during conveying can be accurately captured and converted into an electrical signal, which is then processed by the signal conditioning module and transmitted to the intelligent controller.

[0033] In operation, the raw paper is released from the paper holder 1 and enters the corrugating machine body 2 via the tension sensor system 3 installed on the conveying path for corrugating and bonding. The tension sensor system 3 transmits the paper force to the inner cylinder of the telescopic cylinder tension sensor 34 via the second traction roller 33. The telescopic displacement of the inner cylinder within the outer cylinder is monitored in real time by the displacement sensor and converted into an electrical signal. This signal is then amplified, filtered, and converted from analog to digital by the signal conditioning module before being transmitted to the intelligent controller. The intelligent controller has a pre-set optimal tension range for the raw paper under different production process conditions. When the received tension data exceeds this range, the controller calculates the corresponding adjustment command based on the magnitude and direction of the deviation and sends it to the variable frequency speed control motor 4 installed at the traction points of the paper holder 1 and the corrugating machine body 2. The variable frequency speed control motor 4 adjusts its speed according to the command, thereby changing the unwinding and traction speed of the raw paper, ultimately achieving precise control of the paper force. The entire system, through a closed-loop feedback mechanism, ensures that the raw paper maintains a stable tension state throughout the entire conveying process, effectively avoiding product quality problems and production interruptions caused by tension issues.

[0034] In another embodiment, such as Figure 2As shown, the bracket 31 has a groove 35, and the first traction roller 32 is slidably connected in the groove 35 and fixed to the bracket 31 by screws 36. The bracket 31 may also have evenly arranged threaded holes that mate with the screws 36. Depending on the material requirements of the base paper, the distance between the first traction roller 32 and the second traction roller 33 can be adjusted, thereby adjusting the pressure of the base paper on the second traction roller 33 and controlling the tension requirements of the base paper. This allows the telescopic tension sensor 34 to adapt to the optimal tension value range under different production process conditions.

[0035] To facilitate precise control, the intelligent controller adopts an industrial-grade programmable logic controller, which has data processing and control functions, and presets the optimal tension value range of the base paper under different production process conditions.

[0036] To improve the stability and reliability of the system, such as Figure 1 As shown, it also includes several third traction rollers 5, which are evenly arranged on the paper conveying path for traction of the paper. It also includes a fourth traction roller 6, which has two roller bodies arranged vertically side-by-side, with the paper passing between the roller bodies. This facilitates the traction of the paper.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A corrugated paper conveying tension control system characterized by, The utility model relates to a kind of intelligent control system of corrugated paper machine, including: Raw paper frame for placing and releasing raw paper; Corrugated machine main body for raw paper traction and press corrugation processing; At least one tension sensor system is installed on the raw paper conveying path for real-time monitoring of the tension of raw paper; Intelligent controller is connected with the tension sensor system, for receiving tension data and generating adjustment instructions according to preset parameters; Variable frequency motor is installed in the traction part of raw paper frame and corrugated machine main body respectively, for adjusting the unwinding speed and traction speed according to the instructions of intelligent controller.

2. A corrugated paper conveying tension control system according to claim 1, wherein: The tension sensor system is provided with two and is arranged close to raw paper frame and corrugated machine main body respectively.

3. A corrugated paper conveying tension control system according to claim 2, wherein: The tension sensor system includes a bracket, two first traction rollers, a second traction roller and a telescopic cylinder type tension sensor, the second traction roller is arranged in the middle of the bracket, two first traction rollers are located on both sides of the second traction roller, the telescopic tension sensor is installed between the second traction roller and the bracket, and the raw paper is sequentially arranged at the bottom of the first traction roller, the top of the second traction roller and the bottom of the other first traction roller.

4. A corrugated paper conveying tension control system according to claim 3, wherein: The telescopic cylinder type tension sensor includes an outer cylinder, an inner cylinder, a displacement sensor and a signal conditioning module, the outer cylinder is made of high-strength aluminum alloy material, one end is fixed on the bracket, the inner cylinder is built in the outer cylinder, can be telescopic movement in the outer cylinder, the displacement sensor is installed between the inner cylinder and the outer cylinder, for measuring the telescopic displacement of the inner cylinder and converting the displacement signal into electrical signal, the signal conditioning module is connected with the displacement sensor, for amplifying, filtering and analog-digital conversion processing of electrical signal.

5. A corrugated paper conveying tension control system according to claim 3, wherein: The bracket is provided with a sliding groove, the first traction roller is slidingly connected in the sliding groove and fixed on the bracket by screws.

6. A corrugated paper conveying tension control system as claimed in claim 1, wherein: The intelligent controller uses industrial programmable logic controller, has data processing and control function, and sets the best tension value range of raw paper under different production process conditions in advance.

7. A corrugated paper conveying tension control system as claimed in claim 1, wherein: It also includes several third traction rollers, the third traction rollers are evenly arranged on the raw paper conveying path for traction raw paper.

8. A corrugated paper conveying tension control system as claimed in claim 1, wherein: It also includes a fourth traction roller, the fourth traction roller is provided with two roller bodies arranged side by side, and the raw paper is arranged between the roller bodies.

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