A preheating device for single-faced corrugated paperboard

Abstract

The utility model discloses a kind of preheating device of single-face corrugated paperboard, belong to corrugating machine technical field, the device includes main frame, the preheating roller is arranged in the side of main frame, infrared paperboard temperature monitor is arranged above the transmission path of preheating roller, preheating roller is connected with servo motor by transmission belt, the upper lead conveying frame is arranged in the other side of main frame, the upper lead conveying frame is linearly connected with control module, control module is linearly connected with intelligent control core.The utility model uses above-mentioned one kind of preheating device of single-face corrugated paperboard, space layout is reasonable, adapts production line high-speed operation, can monitor preheating temperature, conveying tension and other key parameters in real time, guarantee parameter stability to improve paperboard processing quality, parameter presetting and dynamic adjustment can also be realized, reduce manual intervention, help production efficiency improvement and operation error reduction.

Description

Technical Field

[0001] This utility model belongs to the field of corrugating machine technology, specifically relating to a preheating device for single-face corrugated cardboard. Background Technology

[0002] In industrial thermal energy equipment (such as steam-heated rollers and dryers), efficient condensate drainage is a key factor in improving thermal efficiency and system stability. Traditional hot roller condensate drainage systems typically employ gravity drainage or simple guide channel structures, with core components including inner wall guide channels, steam traps, and open drainage pipes.

[0003] However, existing technologies have the following significant drawbacks: traditional guide channels are mostly static structures, relying solely on gravity to guide condensate flow to the drain outlet, which cannot effectively accelerate the flow of condensate. The condensate has a long residence time on the inner wall of the hot roller, resulting in uneven temperature distribution on the roller surface and reduced heat transfer efficiency. Furthermore, condensate accumulation may cause localized overheating or corrosion, affecting equipment lifespan. During condensate discharge, steam easily escapes with the condensate into the drain pipe, causing heat loss.

[0004] Therefore, a new device is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a preheating device for single-faced corrugated cardboard. This device has a reasonable spatial layout, is suitable for high-speed operation of the production line, and can monitor key parameters such as preheating temperature and conveying tension in real time to ensure parameter stability and improve cardboard processing quality. It can also realize parameter preset and dynamic adjustment, reduce manual intervention, and help improve production efficiency and reduce operational errors.

[0006] To achieve the above objectives, this utility model provides a preheating device for single-faced corrugated cardboard, including a main frame, a preheating roller is provided on one side of the main frame, an infrared cardboard temperature monitor is provided above the transmission path of the preheating roller, the preheating roller is connected to a servo motor via a transmission belt, an upper conveyor is provided on the other side of the main frame, the upper conveyor is linearly connected to a control module, and the control module is linearly connected to an intelligent control core.

[0007] Preferably, the preheating roller is a cylindrical roller, and the surface of the preheating roller is processed to form a smooth surface suitable for corrugated cardboard transport; both ends of the preheating roller are mounted to the bracket by bearings, and the bracket is fixed to the main frame by bolts.

[0008] Preferably, the preheating roller integrates a heating element, which is a steam pipe.

[0009] Preferably, the upper conveyor frame includes a tension roller and a guide roller; the bearing seats of the tension roller and the guide roller are fixed to the main frame by bolts to form a paperboard conveying path; the servo motor drives the tension roller to rotate through a transmission belt.

[0010] Preferably, a tension sensing and feedback unit is installed on one side of the tension roller, and the tension sensing and feedback unit is linearly connected to the intelligent control core.

[0011] Preferably, the intelligent control core is an industrial computer with a human-machine interface; the intelligent control core is electrically connected to the control module, the infrared cardboard temperature monitor, and the tension sensing and feedback unit.

[0012] Preferably, the control module is a PLC controller that integrates signal processing and execution units, and the control module is electrically connected to the heating element of the preheating roller and the servo motor respectively.

[0013] Therefore, compared with the prior art, the preheating device for single-faced corrugated cardboard of this utility model has the following significant advantages:

[0014] (1) The space layout of this utility model is reasonable and suitable for high-speed operation of the production line;

[0015] (2) This utility model monitors key parameters in real time to ensure stable preheating temperature and conveying tension, thereby improving the quality of cardboard processing;

[0016] (3) This utility model realizes parameter preset and dynamic adjustment, reduces manual intervention, improves production efficiency and reduces operation error.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the preheating device for single-sided corrugated cardboard according to the present invention.

[0019] Figure Labels

[0020] 1. Main frame; 2. Preheating roller; 3. Infrared cardboard temperature monitor; 4. Upper conveyor frame; 5. Tension sensing and feedback unit; 6. Tension roller; 7. Guide roller; 8. Intelligent control core; 9. Control module; 10. Servo motor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by those skilled in the art.

[0022] Example 1

[0023] like Figure 1 As shown, this utility model discloses a preheating device for single-faced corrugated cardboard, comprising a preheating roller 2. The main body of the preheating roller is a cylindrical roller with a surface treated to form a smooth surface suitable for the transport of corrugated cardboard, ensuring that the cardboard surface is not damaged and that heat transfer is uniform. The two ends of the preheating roller 2 are mounted to a support via bearings, forming a rotating pair with the support to support the rotation of the preheating roller 2. The support is fixed to the main frame 1 by bolts. A heating element (such as a steam pipe) is integrated inside the preheating roller 2. The preheating roller 2 is connected to a servo motor 10 via a transmission belt and is driven to rotate by the servo motor 10.

[0024] The infrared paperboard temperature sensor 3 is installed above the paperboard conveying path of the preheating roller 2 and fixed to the main frame 1. It uses infrared sensing technology to collect the surface temperature of the paperboard and transmits the temperature data to the intelligent control core 8 via a signal cable. The intelligent control core 8 has a built-in PID control algorithm that compares the collected temperature with the preset process temperature to generate heating power / speed adjustment commands, which are sent to the control module 9 via an industrial bus (such as Modbus). The infrared paperboard temperature sensor 3 is electrically connected to the intelligent control core 8, and the intelligent control core 8 is electrically connected to the control module 9.

[0025] The upper conveyor frame 4 includes a tension roller 6 and a guide roller 7. The bearing seats of the tension roller 6 and the guide roller 7 are fixed to the main frame 1 by bolts to form a paperboard conveying path; the servo motor 10 drives the tension roller 6 to rotate through a transmission belt.

[0026] Tension sensing and feedback unit 5 is installed next to tension roller 6. It collects cardboard tension data through pressure / strain sensing and transmits it to intelligent control core 8 via signal cable. Intelligent control core 8 adjusts the output frequency of inverter through control module 9, thereby changing the speed of servo motor 10 and realizing dynamic tension adjustment.

[0027] The intelligent control core 8 is an industrial computer, equipped with a human-machine interface, storing preset process parameters and running control algorithms (such as PID regulation); it is connected to the control module 9 through an industrial bus (such as Modbus), sending control commands (such as temperature and speed setpoints) and receiving equipment status feedback.

[0028] The control module 9 is a PLC controller that integrates signal processing and execution units. It is electrically connected to the heating element of the preheating roller 2, the servo motor 10, the frequency converter, and other execution components to achieve precise control of parameters such as preheating temperature, conveying speed, and tension. As the execution terminal, the control module 9 receives instructions and changes the heating power of the preheating roller 2 by adjusting the opening of the steam valve (controlling the steam flow); or by adjusting the speed of the servo motor 10 to indirectly change the contact time between the cardboard and the preheating roller 2, thereby achieving precise temperature control.

[0029] In use, after the raw paper is unwound by the upstream unwinding mechanism, it is guided by the guide roller 7 of the upper conveyor frame 4 into the tension roller 6 area. The tension is monitored in real time by the tension sensing and feedback unit 5, and then driven by the servo motor 10 to be conveyed to the surface of the preheating roller 2. After preheating, it enters the downstream pressing or laminating process.

[0030] The infrared paperboard temperature monitor 3 collects the paperboard temperature in real time and transmits the data to the intelligent control core 8. The intelligent control core 8 compares the actual temperature with the preset temperature, generates a deviation signal, and transmits it to the control module 9. The control module 9 adjusts the heating power or speed of the preheating roller 2 to adjust the paperboard preheating temperature. The adjusted temperature status is collected again by the infrared paperboard temperature monitor 3 to form a complete temperature control closed loop.

[0031] The tension sensing and feedback unit 5 monitors the tension of the cardboard in real time and transmits the data to the intelligent control core 8. The intelligent control core 8 compares the actual tension value with the preset tension threshold, generates a control signal, and transmits it to the control module 9. The control module 9 adjusts the frequency converter to change the speed of the servo motor 10 and adjusts the conveying speed of the tension roller 6 to achieve cardboard tension adjustment. The adjusted tension state is collected again by the tension sensing and feedback unit 5 to form a complete tension control closed loop.

[0032] Therefore, this utility model adopts the above-mentioned preheating device for single-faced corrugated cardboard. The device has a reasonable spatial layout, is suitable for high-speed operation of the production line, and can monitor key parameters such as preheating temperature and conveying tension in real time to ensure parameter stability and improve cardboard processing quality. It can also realize parameter preset and dynamic adjustment, reduce manual intervention, and help improve production efficiency and reduce operating errors.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the 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 still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A preheating device for single-faced corrugated cardboard, characterized in that, The device includes a main frame, a preheating roller on one side of the main frame, an infrared cardboard temperature monitor above the conveying path of the preheating roller, the preheating roller being connected to a servo motor via a transmission belt, an upper conveyor frame on the other side of the main frame, the upper conveyor frame being linearly connected to a control module, and the control module being linearly connected to an intelligent control core.

2. The preheating device for single-faced corrugated cardboard according to claim 1, characterized in that, The preheating roller is a cylindrical roller body, and the surface of the preheating roller is processed to form a smooth surface suitable for corrugated cardboard transport; both ends of the preheating roller are mounted to the bracket by bearings, and the bracket is fixed to the main frame by bolts.

3. The preheating device for single-faced corrugated cardboard according to claim 2, characterized in that, The preheating roller integrates a heating element, which is a steam pipe.

4. The preheating device for single-faced corrugated cardboard according to claim 3, characterized in that, The upper conveyor frame includes a tension roller and a guide roller; the bearing seats of the tension roller and the guide roller are fixed to the main frame by bolts to form a paperboard conveying path; the servo motor drives the tension roller to rotate through a transmission belt.

5. A preheating device for single-faced corrugated cardboard according to claim 4, characterized in that, A tension sensing and feedback unit is installed on one side of the tension roller, and the tension sensing and feedback unit is linearly connected to the intelligent control core.

6. A preheating device for single-faced corrugated cardboard according to claim 5, characterized in that, The intelligent control core is an industrial computer with a human-machine interface; the intelligent control core is electrically connected to the control module, the infrared cardboard temperature monitor, and the tension sensing and feedback unit.

7. A preheating device for single-faced corrugated cardboard according to claim 6, characterized in that, The control module is a PLC controller that integrates signal processing and execution units. The control module is electrically connected to the heating element of the preheating roller and the servo motor.

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