A drying device for corrugated paper production

Abstract

The utility model discloses a kind of drying equipment for corrugated paper production, including drying cabinet, conveying roller is arranged in drying cabinet, conveying belt is arranged at the feed end of drying cabinet;The upper and lower sides of conveying roller in drying cabinet are respectively provided with top drying mechanism and bottom drying mechanism, and lifting cylinder is arranged above drying cabinet;Cooling cabinet is arranged at the rear of drying cabinet, conveying roller is arranged in cooling cabinet, conveying belt for outputting corrugated box after cooling is arranged at the discharge end of cooling cabinet, conveying motor is arranged at the side end of drying cabinet;Temperature sensor is arranged in drying cabinet, and PLC controller is arranged at the outside of drying cabinet.The utility model improves the efficiency and uniformity of drying, detects the temperature in drying cabinet in real time during drying process, can be accurately adjusted according to the temperature of detection, further improves the quality of drying, reduces the damage rate of corrugated paper, and is suitable for large-scale corrugated paper production operation.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated paper production equipment, and more specifically to a drying equipment for corrugated paper production. Background Technology

[0002] Corrugated paper is a sheet-like material made by bonding linerboard and corrugated paper formed by corrugating rollers. It has advantages such as low cost, light weight, easy processing, high strength, excellent printability, and convenient storage and handling, and is widely used in the packaging industry. During the production process of corrugated paper, it needs to be dried to remove moisture and ensure its quality and strength.

[0003] Currently, most existing corrugated paper drying equipment uses a single heating method, such as drying corrugated paper solely through heating tubes. This method suffers from low drying efficiency, and the corrugated paper is prone to uneven heating during transport, leading to localized over-drying and damage, thus affecting the production quality. Furthermore, existing drying equipment lacks an effective temperature control mechanism, failing to precisely adjust the drying temperature according to the actual drying needs of the corrugated paper, further reducing drying quality and efficiency.

[0004] In addition, corrugated paper drying equipment is mostly box-type structure, requiring manual feeding and discharging. During feeding, due to the high moisture content and poor toughness of the corrugated paper, it is easy to bend, affecting the quality of the corrugated paper. During discharging, because the temperature of the corrugated paper is relatively high during drying, direct discharge after drying can easily cause burns to workers, posing a great safety hazard. Furthermore, the drying equipment needs to be stopped or there are drying intervals during manual feeding and discharging, which reduces the drying efficiency and affects the subsequent production and processing of corrugated paper.

[0005] Therefore, there is an urgent need for a new type of drying equipment for corrugated paper production to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a drying equipment for corrugated paper production, so as to solve the problems of low drying efficiency, uneven heating and easy damage of corrugated paper and inaccurate temperature control of traditional corrugated paper drying equipment mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0008] A drying device for corrugated paper production includes a drying chamber for drying corrugated paper, a conveyor roller for conveying the corrugated paper inside the drying chamber, and a conveyor belt for conveying the corrugated paper into the drying chamber at the feed end of the drying chamber. A top drying mechanism and a bottom drying mechanism are respectively installed on the upper and lower sides of the conveyor roller inside the drying chamber for drying the top and bottom of the corrugated paper. A lifting cylinder is installed above the drying chamber for driving the top drying mechanism to move up and down. A cooling chamber for cooling the dried corrugated paper is installed behind the drying chamber. A conveyor roller is installed inside the cooling chamber, and a conveyor belt for outputting the cooled corrugated paper is installed at the discharge end of the cooling chamber. A conveyor motor for driving the conveyor belt and conveyor roller to rotate is installed on the side of the drying chamber. A temperature sensor for detecting the temperature inside the drying chamber is installed inside the drying chamber, and a PLC controller is installed outside the drying chamber. The output of the temperature sensor is connected to the input of the PLC controller, and the output of the PLC controller is connected to the input of the lifting cylinder and the conveyor motor.

[0009] To further optimize the technical solution, the top drying mechanism includes an air duct set on the telescopic rod of the lifting cylinder, a number of air nozzles evenly arranged at the bottom of the air duct, a heating box set above the drying box, a heater set inside the heating box, and a blower set on the pipeline connecting the heating box and the air duct for blowing hot air from the heating box into the branch pipe. The input ends of the heater and the blower are respectively connected to the output end of the PLC controller.

[0010] To further optimize the technical solution, the bottom drying mechanism includes a heating box located at the bottom of the drying chamber, a heater installed inside the heating box, an exhaust fan connected to one end of the heating box via a pipe, the air inlet of the exhaust fan extending out of the drying chamber, and an air duct located below the conveyor roller connected to the other end of the heating box. Several air nozzles are evenly arranged on the top of the air duct. The input ends of the heater and the exhaust fan are respectively connected to the output end of the PLC controller.

[0011] To further optimize the technical solution, an exhaust fan is connected to the top of the drying oven via a pipe, and the input end of the exhaust fan is connected to the output end of the PLC controller.

[0012] To further optimize the technical solution, the outer sides of the inlet and outlet of the drying oven are equipped with heat-insulating curtains for heat preservation. The curtain mounting plate above the heat-insulating curtain at the inlet has several mounting holes for adjusting the height of the curtain.

[0013] To further optimize the technical solution, the drying oven is equipped with an insulation layer for heat preservation.

[0014] To further optimize the technical solution, fans for heat dissipation are respectively installed on the upper and lower sides of the conveyor roller inside the cooling box. A temperature sensor is installed inside the cooling box, and the output terminal of the temperature sensor is connected to the input terminal of the PLC controller. The output terminal of the PLC controller is connected to the input terminal of the fan.

[0015] Due to the adoption of the above technical solutions, the technological progress achieved by this utility model is as follows.

[0016] This utility model provides a drying equipment for corrugated paper production, which simultaneously dries both the top and bottom surfaces of the corrugated paper, improving drying efficiency and uniformity. During the drying process, the temperature inside the drying chamber is monitored in real time, and precise adjustments can be made based on the detected temperature, further improving drying quality and reducing the corrugated paper damage rate. It is suitable for large-scale corrugated paper production operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the heat-insulating door curtain at the feed inlet of the drying oven of this utility model.

[0018] The components are: 1. Drying box, 2. Conveying roller, 3. Conveying belt, 4. Corrugated paper, 5. Heating box, 6. Heater, 7. Air duct, 8. Air nozzle, 9. Exhaust fan, 10. Air blower, 11. Lifting cylinder, 12. Exhaust fan, 13. PLC controller, 14. Insulation layer, 15. Temperature sensor, 16. Insulated door curtain, 17. Cooling box, 18. Fan, 19. Feed inlet, 20. Door curtain mounting plate, 21. Mounting hole. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] A drying device for corrugated paper production, combined with Figures 1 to 2 As shown, the system includes a drying chamber 1 and a cooling chamber 17. The drying chamber 1 is used to dry the corrugated paper, and the cooling chamber 17 is used to cool the dried corrugated paper. Both the drying chamber 1 and the cooling chamber 17 are equipped with conveyor rollers 2. Conveyor belts 3 are installed at the inlet end of the drying chamber 1 and the outlet end of the cooling chamber 17 to transport the corrugated paper 4. The conveyor rollers, through the gaps between them, improve the drying and cooling speeds of the corrugated paper. A conveyor motor is installed on the side of the drying chamber to drive the conveyor rollers and conveyor belts to rotate, thus transporting the corrugated paper. A PLC controller 13 is installed on the outside of the drying chamber 1, and the output of the PLC controller is connected to the input of the conveyor motor.

[0021] A top drying mechanism is provided above the conveyor roller 2 inside the drying chamber 1 to dry the top of the corrugated paper. The top drying mechanism includes an air duct 7 located above the conveyor roller. Several air nozzles 8 are evenly arranged at the bottom of the air duct 7. A heating chamber 5 is provided above the drying chamber 1. A heater is provided inside the heating chamber. A blower 10 is provided on the pipe connecting the heating chamber 5 and the air duct 7 to blow hot air from the heating chamber into the air duct to dry the top of the corrugated paper. The input terminals of the heater and the blower are respectively connected to the output terminals of the PLC controller.

[0022] A lifting cylinder 11 is installed above the drying box 1. The end of the extension rod of the lifting cylinder passes through the drying box and is connected to the air duct 7 to drive the air duct to move up and down. During the drying process of corrugated paper, the blowing height of the air duct can be adjusted according to the thickness of the corrugated paper, thereby improving the drying efficiency of the corrugated paper.

[0023] A bottom drying mechanism is installed below the conveyor roller 2 inside the drying chamber 1 to dry the bottom of the corrugated paper. The bottom drying mechanism includes a heating chamber 5 located at the bottom of the drying chamber 1, containing a heater 6. One end of the heating chamber 5 is connected to an exhaust fan 9 via a pipe, with the exhaust fan's inlet extending out of the drying chamber 1. The other end of the heating chamber is connected to an air duct 7 located below the conveyor roller 2. Several air nozzles 8 are evenly arranged on the top of the air duct 7. The input ends of the heater and the exhaust fan are respectively connected to the output ends of a PLC controller. The exhaust fan draws cold air into the heating chamber, heats it through the heater, and then it enters the air duct, blowing it through the air nozzles towards the bottom of the corrugated paper to dry it.

[0024] A temperature sensor 15 is installed inside the drying chamber 1 to detect the temperature information inside the drying chamber. The output terminal of the temperature sensor is connected to the input terminal of the PLC controller. The PLC controller controls the heating temperature of the heater according to the detected temperature, so as to realize the controllability of the drying temperature.

[0025] The top of the drying chamber 1 is connected to an exhaust fan 12 via a pipe to maintain the air pressure balance inside the drying chamber. The input end of the exhaust fan is connected to the output end of the PLC controller.

[0026] The drying oven 1 is equipped with an insulation layer 14 inside to keep the drying oven warm, reduce heat loss, and lower energy consumption.

[0027] Both the inlet 19 and outlet of the drying chamber 1 are equipped with heat-insulating curtains 16 for heat preservation. The heat-insulating curtain at the inlet is height-adjustable, and a curtain mounting plate 20 is installed above it. The mounting plate has several layers of mounting holes 21 evenly distributed to adjust the height of the curtain to accommodate corrugated paper of different thicknesses. Adjusting the curtain height according to the height of the corrugated paper during feeding not only provides heat preservation but also prevents the curtain from deforming the damp corrugated paper. The corrugated paper at the outlet is already dried and has a certain degree of hardness. The curtain tilts as the corrugated paper is conveyed without affecting it. Furthermore, the outlet of the drying chamber is equipped with a drying box, making it inconvenient to adjust the height of the heat-insulating curtain. Therefore, the height of the outlet heat-insulating curtain does not need to be adjusted.

[0028] Fans 18 are installed on the upper and lower sides of the conveyor roller 2 inside the cooling box 17. A temperature sensor 15 is installed inside the cooling box to detect the temperature inside. The output of the temperature sensor is connected to the input of the PLC controller, and the output of the PLC controller is connected to the input of the fan. The PLC controller controls the airflow of the fan according to the temperature information detected by the temperature sensor to achieve rapid cooling of the corrugated paper.

[0029] In operation, the bonded corrugated paper is conveyed to the drying chamber via a conveyor belt. During the conveying process, hot air is blown onto the top and bottom sides of the corrugated paper through air nozzles to dry it. After drying, the corrugated paper enters the cooling chamber for cooling. After cooling, the corrugated paper is output via a conveyor belt. Throughout the drying process, the corrugated paper is conveyed without stopping, which improves the efficiency of corrugated paper drying.

Claims

1. A drying device for corrugated paper production, characterized in that: The equipment includes a drying box (1) for drying corrugated paper (4), a conveyor roller (2) for conveying the corrugated paper (4) is provided inside the drying box (1), and a conveyor belt (3) for conveying the corrugated paper into the drying box is provided at the feed end of the drying box (1); a top drying mechanism and a bottom drying mechanism for drying the top and bottom of the corrugated paper are respectively provided on the upper and lower sides of the conveyor roller (2) inside the drying box (1), and a lifting cylinder (11) for driving the top drying mechanism to rise and fall is provided above the drying box (1); a device for drying the dried corrugated paper is provided at the rear of the drying box (1). A cooling box (17) for cooling corrugated paper is provided. A conveyor roller (2) is provided inside the cooling box. A conveyor belt (3) for outputting the cooled corrugated box is provided at the discharge end of the cooling box (17). A conveyor motor for driving the conveyor belt and conveyor roller is provided at the side end of the drying box. A temperature sensor (15) for detecting the temperature inside the drying box is provided inside the drying box (1). A PLC controller (13) is provided on the outside of the drying box (1). The output end of the temperature sensor is connected to the input end of the PLC controller. The output end of the PLC controller is connected to the input end of the lifting cylinder and the conveyor motor, respectively.

2. The drying equipment for corrugated paper production according to claim 1, characterized in that: The top drying mechanism includes an air duct (7) mounted on the telescopic rod of the lifting cylinder (11). Several air nozzles (8) are evenly arranged at the bottom of the air duct (7). A heating box (5) is arranged above the drying box (1). A heater is arranged inside the heating box. A blower (10) is arranged on the pipeline connecting the heating box (5) and the air duct (7) to blow hot air from the heating box into the air duct. The input ends of the heater and the blower are respectively connected to the output end of the PLC controller.

3. The drying equipment for corrugated paper production according to claim 1, characterized in that: The bottom drying mechanism includes a heating box (5) set at the bottom of the drying box (1), a heater (6) is provided inside the heating box, one end of the heating box (5) is connected to an exhaust fan (9) through a pipe, the air inlet of the exhaust fan extends out of the drying box (1), the other end of the heating box is connected to an air duct (7) located below the conveyor roller (2), and several air nozzles (8) are evenly arranged on the top of the air duct (7). The input ends of the heater and the exhaust fan are respectively connected to the output end of the PLC controller.

4. The drying equipment for corrugated paper production according to claim 1, characterized in that: The top of the drying box (1) is connected to an exhaust fan (12) via a pipe, and the input end of the exhaust fan is connected to the output end of the PLC controller.

5. A drying device for corrugated paper production according to claim 1, characterized in that: The drying box (1) has heat-insulating curtains (16) for heat preservation on the outside of the inlet (19) and outlet. Several mounting holes (21) for adjusting the height of the curtain are opened on the curtain mounting plate (20) above the heat-insulating curtain (16) at the inlet (19).

6. The drying equipment for corrugated paper production according to claim 1, characterized in that: The drying oven (1) is equipped with an insulation layer (14) for heat preservation.

7. A drying device for corrugated paper production according to claim 1, characterized in that: Fans (18) for heat dissipation are respectively provided on the upper and lower sides of the conveying roller (2) inside the cooling box (17). A temperature sensor (15) is provided inside the cooling box. The output end of the temperature sensor is connected to the input end of the PLC controller, and the output end of the PLC controller is connected to the input end of the fan.

Images