A conveyor roller control device for roller temperature control production of corrugated paper

Abstract

A conveying roller control device for roller-pressing temperature control production of corrugated paper, relates to a corrugated paper production control device, the invention relates to a corrugated paper temperature control and speed control production line connection port installed and fixed on the left side of the base frame, the lower roller assembly is fixed on the upper part of the base frame, the upper roller assembly is located on the upper part of the lower roller assembly, and is adjusted by the roller gap adjustment bolt structure, the sealing cover is fixed on the upper part of the upper roller assembly, the side of the sealing cover is provided with an observation window, the variable frequency reduction motor is fixed on one side of the base frame, the hot air source pipeline is respectively arranged on the left and right sides of the upper part of the upper roller assembly, the resistance heater is respectively fixed in the middle of the upper part of the upper roller assembly and the middle of the lower part of the lower roller assembly, and the roller gap adjustment bolt is used to adjust the fixed gap between the lower roller assembly and the upper roller assembly; the lower roller assembly of the corrugated paper temperature control and speed control production line comprises a roller table I, a bearing end cover, a bearing seat, and a bearing. The device of the invention has the characteristics of efficient, accurate and low-consumption temperature control and speed control for the transportation of corrugated paper production, thereby improving product quality and production efficiency.

Description

Technical Field

[0001] The invention relates to a conveying control device for corrugated paper production, in particular to a conveying roller control device for producing corrugated paper with roller pressure temperature control. Background Art

[0002] During the production process of corrugated cardboard production line, the box sheets often become soft, debonded, and not firmly bonded. This not only causes material waste, but also seriously affects the qualified rate of finished carton products. This is because only when the temperature of the hot plate is above 160℃ can the subsequent operations be effectively carried out. The existing heating method is basically heating through 1.0Mpa steam, and even temperature coordination and tension control by reducing the speed, but this reduces production efficiency. Therefore, an effective temperature increase and temperature control method can improve production speed and efficiency. Many scholars at home and abroad have also conducted a lot of research on this issue.

[0003] Patent No. 201520672478.9 Jiang Shanlei and others introduced a device for accelerating the production of faceless four-layer corrugated cardboard. A water vapor distribution plate is added in front of the preheating plate of the existing corrugated cardboard production line and between two adjacent preheating plates. The water vapor distribution plate is connected to the drain port on the preheating plate, and the water vapor mixture discharged from the water vapor nozzle on the water vapor distribution plate moisturizes and heats the corrugated cardboard to the starch gelatinization temperature, thereby controlling the quality of the cardboard and making the corrugated cardboard production line produce faceless four-layer corrugated cardboard at the production speed of five-layer cardboard, greatly improving the production efficiency of the cardboard. However, the process structure cannot solve the problem of fast surface heat dissipation, which will cause the difference between low surface temperature and high center temperature of the hot plate.

[0004] Patent No. 201810926195.0 Jinjiang Xinda Carton Packaging Co., Ltd. introduced a five-layer corrugated paper production line, whose temperature control method is that the cardboard forming machine consists of a drying device and a cooling device. The drying device is located on the left side of the cooling device. The drying device includes multiple groups of heating heads arranged at equal intervals and a transmission mechanism for controlling the lifting of the heating heads. The temperature of the multiple groups of heating heads decreases from left to right and is connected into one by a steel plate. The lower end of the heating head is close to the surface of the five-layer corrugated cardboard, and a guide rod is arranged between adjacent heating heads.

[0005] Patent No. 201810376776.1 The hood mechanism in the corrugated paper production mechanism, four-layer corrugated paperboard production line and its production process includes an exhaust hood and a blow hood. When the wind slot of the corrugated roller rotates to the exhaust hood, the wind slot is connected with the exhaust hood, and the through hole generates adsorption force. When it rotates to the blow hood, the wind slot is connected with the blow hood, and air is blown outward for drying. This patent does not involve hot air and closed environment temperature control and closed exhaust structure, which is obviously different from the present invention.

[0006] Patent No. 2201811575985.5 Qian Limin of Zhejiang Xinlaike Packaging Technology Co., Ltd. introduced a temperature-controlled multi-layer corrugated paperboard. The patent proposed using ordinary corrugated paperboard to provide thermal insulation and slip resistance of the carton; using tin foil to further improve the thermal insulation performance and reduce the impact of the external ambient temperature on the inside of the carton; combining with gel, the corrugated paperboard has the temperature control function of "gel ice pack", and the carton made can effectively control the temperature inside the box. Although the patent involves the ambient temperature control function, it does not involve any function of increasing and maintaining temperature.

[0007] Patent No. 201420493359.2 Cui Jinbao and others from Qingdao Kaituo CNC Equipment Co., Ltd. introduced a constant tension conveying device for a single-faced corrugated cardboard production line, which includes a wallboard, a tension control component, and a conveying component. For the tension control component, the synchronous rocker arm shaft is fixed on the wallboard, the angle sensor is connected to the synchronous rocker arm shaft through a coupling, the synchronous rocker arm plates are arranged on both sides of the synchronous rocker arm shaft, and a synchronous tension roller and a synchronous counterweight roller are arranged between the synchronous rocker arm plates.

[0008] Although the above papers and public inventions provide solutions and ideas for corrugated paper temperature control to a certain extent, the comprehensive temperature rise, temperature control and surface heat dissipation are fast, which will result in the differential functions of low surface temperature of the hot plate and high center temperature, and the tension control structure is relatively complicated. Summary of the invention

[0009] The purpose of the present invention is to provide a conveyor roller control device for producing corrugated paper by roller temperature control. The present invention can meet the high-speed production requirements of corrugated paperboard by high-temperature constant temperature control and atmosphere insulation control of the surrounding temperature atmosphere, combined with an automatic temperature measurement implementation plan. The overall device is economical and convenient, and at the same time, the temperature control and tension control functions of the corrugated paperboard are efficiently and quickly realized, and the temperature difference can be reduced, and it can adapt to the industrialization of corrugated paperboards of various specifications and varieties.

[0010] The objective of the present invention is achieved through the following technical solutions:

[0011] A conveyor roller control device for roller-pressing temperature control production of corrugated paper, the device comprising a connection port, a base frame, a lower roller assembly, an upper roller assembly, a sealing cover, a variable frequency reduction motor, a hot air source pipeline, an exhaust port, a resistance heater, and a roller gap adjustment bolt; the connection port of the corrugated paper temperature control and speed control production line is installed and fixed on the left side of the base frame, the lower roller assembly is fixed on the upper part of the base frame, the upper roller assembly is located on the upper part of the lower roller assembly, and is adjusted by the roller gap adjustment bolt structure, the sealing cover is fixed on the upper part of the upper roller assembly, and an observation window is opened on the side of the sealing cover, the variable frequency reduction motor is fixed on one side of the base frame, the hot air source pipeline is arranged on the left and right sides of the upper part of the upper roller assembly, and the resistance heaters are fixed on the upper roller assembly. The roller gap adjusting bolt is used to adjust the fixed gap between the lower roller assembly and the upper roller assembly in the middle of the upper part of the body and the middle of the lower part of the lower roller assembly; the lower roller assembly of the corrugated paper temperature control and speed control production line includes roller I, bearing end cover, bearing seat, bearing, elastic retaining ring for shaft, dust ring, bearing cover, sprocket, sprocket pressure plate, and fixing bolts; roller II, guide plate, wherein roller I has an array arranged alternately with roller II, and the two ends of the roller are respectively fixed in the bearing seat, the bearing, elastic retaining ring for shaft, and bearing end cover are arranged in sequence on the operating side of the roller, and the dust ring, bearing cover, sprocket, sprocket pressure plate, and fixing bolts are arranged in sequence on the transmission side. These components are arranged concentrically with the roller, and the guide plate is located at the front end of the roller.

[0012] The conveyor roller control device for producing corrugated paper with roller temperature control also includes a cantilever operation box, an HMI human-machine visual operation interface, Siemens PLC module grouping I / O node temperature sensors, a resistance heater heat source controller, a hot air controller, and a roller frequency converter.

[0013] The conveying roller control device for producing corrugated paper by roller temperature control has a resistance heater environment control temperature of 0-200°C and a heating rate of 0-30°C / s.

[0014] The conveyor roller control device for producing corrugated paper by roller temperature control has an air source temperature of 0-200°C and a pressure of 0-1Mpa.

[0015] The conveyor roller control device for producing corrugated paper by roller temperature control, the resistance heater of the device adopts copper electrode heating, thermocouple temperature measurement, maximum heating temperature is 1200°C, and program temperature control heating.

[0016] The conveyor roller control device for roller-pressing temperature control production of corrugated paper has a maximum heating rate of 300°C / s for heating the copper electrodes of the device.

[0017] The conveying roller control device for roller-pressing temperature-controlled production of corrugated paper has a variable frequency reduction motor that adjusts the roller speed to 0-3 m / s.

[0018] The advantages and effects of the present invention are:

[0019] At present, the temperature control and tension control problems of corrugated cardboard production lines are summarized as follows:

[0020] 1. Temperature control issues during the transportation of corrugated cardboard;

[0021] 2. Temperature uniformity problem during the transportation of corrugated cardboard;

[0022] 3. The problem of atmosphere recovery during the transportation of corrugated cardboard;

[0023] 4. Constant tension control problem;

[0024] 5. Intelligent control, economical, convenient and efficient.

[0025] The present invention solves the above-mentioned core technical problems from the perspective of mechanical structure and automatic control improvement function, as follows:

[0026] 1. A resistance heater is used between the two rollers at the bottom of the roller table, and hot air is supplied to the side walls of the rollers. The above two methods are used to increase the temperature, which greatly improves the heating efficiency. At the same time, a closed chamber structure is used to ensure the ambient temperature atmosphere, thereby effectively reducing the ambient temperature heat loss and providing a guarantee for efficient operation speed.

[0027] 2. Control the heating speed of the resistance heater through the power control of the resistance heater, so as to control the temperature between the rollers. Control the edge hot air efficiency by setting the heat source temperature and speed to compensate for the edge temperature. Control the temperature and pressure of the hot air source to control the compensation temperature efficiency. The heating speed and temperature uniformity of the above two control methods can be controlled by effective measures to ensure that the subsequent operation is above 160°C.

[0028] 3. Since harmful gases will be discharged during the conveying process of colloids, an exhaust port is set on the top of the hood to exhaust air through a fan to ensure the process atmosphere recovery problem.

[0029] 4. Three groups of temperature sensors are set at a certain distance on the temperature-controlled roller to collect the actual temperature. Each group contains 3 to 5 temperature collection points, and the temperature uniformity problem is calibrated based on the temperature coefficient of multiple points. The temperature of the heat source is collected to control the efficiency of the heat source supply. The Siemens module is used for intelligent control based on the full temperature coefficient.

[0030] 5. The alternating roller tensioning structure is adopted to avoid the indentation caused by direct pressure, while ensuring constant tension. The tension can be adjusted by adjusting the roller conveying speed.

[0031] 6. The temperature and tension control process is fully intelligent and has high heat source utilization efficiency, which solves the complexity of production line process parameter testing and is economical, convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the roller-pressed temperature-controlled corrugated paper conveying roller table of the present invention;

[0033] Figure 2 It is a front view of the roller-pressed temperature-controlled corrugated paper conveying roller table of the present invention;

[0034] Figure 3 It is a side sectional view of the roller conveyor for roller-pressed temperature-controlled corrugated paper of the present invention;

[0035] Figure 4 It is a side view of the roller conveyor for roller-pressed temperature-controlled corrugated paper of the present invention;

[0036] Figure 5 A top view of the roller conveyor for roller-pressed temperature-controlled corrugated paper of the present invention;

[0037] Figure 6 It is a cross-sectional view of the structure of the lower roller assembly of the present invention;

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure of the lower roller assembly of the present invention;

[0039] Figure 8 It is a schematic diagram of the three-dimensional structure of the upper roller assembly of the present invention;

[0040] Fig. 9 It is a schematic diagram of the structure of the resistance heater of the present invention;

[0041] Fig.10 This is a schematic diagram of the automatic control principle structure of the present invention;

[0042] Fig.11 This is a schematic diagram of the temperature control electrical appliance for the resistance heater of the present invention;

[0043] Fig.12 This is the layout diagram of the electric control cabinet of the cantilever room of the present invention;

[0044] Fig.13 It is a schematic diagram of the three-dimensional structure of the cantilever electric control cabinet of the present invention.

[0045] Components in the figure: connection port 1, base frame 2, lower roller assembly 3, upper roller assembly 4, sealing cover 5, variable frequency reduction motor 6, hot air source pipeline 7, exhaust port 8, resistance heater 9, roller gap adjustment bolt 10, roller table I 11, bearing end cover 12, bearing seat 13, bearing 14, shaft elastic retaining ring 15, dust ring 16, bearing cover 17, sprocket 18, sprocket pressure plate 19, fixing bolt 20, roller table II 20, guide plate 22. DETAILED DESCRIPTION

[0046] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings.

[0047] The roller temperature control corrugated paper conveying roller control device of the present invention comprises a connection port 1, a base frame 2, a lower roller assembly 3, an upper roller assembly 4, a sealing cover 5, a variable frequency reduction motor 6, a hot air source pipeline 7, an exhaust port 8, a resistance heater 9, a roller gap adjustment bolt 10, a roller I 11, a bearing end cover 12, a bearing seat 13, a bearing 14, a shaft elastic retaining ring 15, a dust ring 16, a bearing cover 17, a sprocket 18, a sprocket pressure plate 19, a fixing bolt 20, a roller II 20, and a guide plate 22. The device is a production line equipment suitable for the temperature control and speed control process of corrugated paper.

[0048] The connecting port 1 is installed and fixed on the left side of the base frame 2, the lower roller assembly 3 is fixed on the upper part of the base frame 2, the upper roller assembly 4 is located on the upper part of the lower roller assembly 3, and is adjusted by the roller gap adjusting bolt 10, the sealing cover 5 is fixed on the upper part of the upper roller assembly 4, and an observation window is opened on the side of the sealing cover, the variable frequency reduction motor 6 is fixed on one side of the base frame 2, the hot air source pipeline 7 is respectively arranged on the left and right sides of the upper part of the upper roller assembly 4, and the resistance heater is respectively fixed in the middle of the upper part of the upper roller assembly 4 and the middle position of the lower part of the lower roller assembly 3. The roller gap adjusting bolt 10 is fixed by adjusting the lower roller assembly 3 and the upper roller assembly 4 with the bolt to fix the gap, and is placed at the front end of the base frame; the rolling adopts alternating rolling of the upper and lower rollers to reduce indentations.

[0049] The lower roller assembly 3 includes a roller I 11, a bearing end cover 12, a bearing seat 13, a bearing 14, a shaft elastic retaining ring 15, a dust ring 16, a bearing cover 17, a sprocket 18, a sprocket pressure plate 19, a fixing bolt 20, a roller II 21, and a guide plate 22; wherein the roller I 11 has an array and is alternately arranged with the roller II 21, and both ends of the roller are respectively fixed in the bearing seat 13, and the bearing 14, the shaft elastic retaining ring 15, and the bearing end cover 12 are arranged in sequence on the roller operation side, and the dust ring 16, the bearing cover 17, the sprocket 18, the sprocket pressure plate 19, and the fixing bolt 20 are arranged in sequence on the transmission side, and these structures are arranged concentrically with the roller, and the guide plate 22 is located at the front end of the roller.

[0050] The automation control facilities include cantilever operation box, HMI human-machine visual operation interface, Siemens PLC module grouping I / O, resistance heater heat source control and hot air control to achieve uniform temperature control according to the difference in the value of each node temperature sensor. The roller inverter is controlled to match the production speed according to the product quality requirements and temperature control requirements.

[0051] The ambient temperature of the resistance heater 9 is 0-200°C, and the heating rate is 0-30°C / s; the hot air source temperature is 0-200°C, and the pressure is 0-1Mpa.

[0052] The resistance heater has 9 thermocouples, a maximum heating temperature of 1200°C, program-controlled heating, and a maximum heating rate of 300°C / s.

[0053] The variable frequency reduction motor 6 can adjust the roller speed from 0 to 3 m / s.

[0054] The control process of the present invention is as follows:

[0055] 1. Alternating roller pressing and line speed adjustment

[0056] 1. First, the incoming corrugated cardboard enters through the connection port 1, and is alternately tensioned by the lower roller assembly 3 and the upper roller assembly 4;

[0057] 2. The temperature sensor tests the temperature of the left, right and middle parts of the incoming corrugated cardboard respectively, and matches it with the subsequent operating temperature;

[0058] 3. Set the roll gap according to the feeding material, and adjust the roll gap adjusting bolt 10 to adjust the roll gap;

[0059] 4. Set the roller line speed and roller temperature according to the properties of the feed material.

[0060] 2. Temperature control and adjustment

[0061] 1. Resistance heater system: resistance heater, its schematic diagram is as follows Fig. 9 As shown, in the specific example, the set value is 170~190℃, the heating time is 10s, the actual temperature value is measured by a thermocouple and compared with the set value, and automatic control is performed based on PID feedback;

[0062] 2. Hot air system: The ambient temperature is controlled according to the temperature difference between the two sides. In the specific example, the setting value is 170~190℃ and the pressure is 0.3~0.5Mpa. Compensation adjustment is performed according to the temperature difference between the front, middle and rear parts.

[0063] 3.HMI interface operation: Its automatic control is as shown in the attached Fig.10 As shown, using Fig.12 , Fig.13 The cantilever room operation box shown in the figure has a human-machine HMI visual interface and is controlled by a Siemens I / O system. The human-machine interface operation reduces the difficulty of operation.

Claims

1. A conveyor roller control device for producing corrugated paper by roller temperature control, characterized in that: The device comprises a connection port, a base frame, a lower roller assembly, an upper roller assembly, a sealing cover, a variable frequency reduction motor, a hot air source pipeline, an exhaust port, a resistance heater, and a roller gap adjustment bolt; the connection port of the corrugated paper temperature control and speed control production line is installed and fixed on the left side of the base frame, the lower roller assembly is fixed on the upper part of the base frame, the upper roller assembly is located on the upper part of the lower roller assembly, the sealing cover is fixed on the upper part of the upper roller assembly, an observation window is opened on the side of the sealing cover, the variable frequency reduction motor is fixed on one side of the base frame, the hot air source pipelines are respectively arranged on the left and right sides of the upper part of the upper roller assembly, the resistance heaters are respectively fixed on the middle of the upper part of the upper roller assembly and the middle of the lower part of the lower roller assembly, and the heating speed of the resistance heater is controlled by the power control of the resistance heater , thereby controlling the temperature between the rollers, and controlling the edge hot air efficiency by setting the heat source temperature and speed to compensate for the edge temperature; the roller gap adjustment bolt is used to adjust the fixed gap between the lower roller assembly and the upper roller assembly; the lower roller assembly of the corrugated paper temperature control and speed control production line includes roller I, bearing end cover, bearing seat, bearing, shaft elastic retaining ring, dust ring, bearing cover, sprocket, sprocket pressure plate, and fixing bolts; roller II, guide plate, wherein roller I has an array arranged alternately with roller II, and the two ends of the roller are respectively fixed in the bearing seat, and the operating side of the roller is arranged with bearings, shaft elastic retaining rings, and bearing end covers in sequence, and the transmission side is arranged with dust rings, bearing cover, sprocket, sprocket pressure plate, and fixing bolts in sequence, and the guide plate is located at the front end of the roller; The device also includes a cantilever operation box, an HMI human-machine visual operation interface, Siemens PLC module grouping I / O node temperature sensors, a resistance heater heat source controller, a hot air controller, and a roller table frequency converter; The resistance heater environment of the device is controlled at a temperature of 0-200°C; The hot air controller of the device has an air source temperature of 0~200°C and a pressure of 0~1Mpa; The resistance heater is heated by copper electrodes and measured by thermocouples. The maximum heating temperature is 1200°C and the heating is programmed temperature controlled. The variable frequency reduction motor can adjust the roller speed to 0~3m / s.

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