Impregnation production structure capable of monitoring using length of raw paper in real time

Abstract

The utility model relates to a dipping production structure capable of monitoring the using length of body paper in real time, an uncoiling frame is provided with an uncoiling shaft and a control box with a display function, a PLC (Programmable Logic Controller) system is integrated in the control box, and the uncoiling shaft supports the roll paper by sleeving a cylinder core in the roll paper; a supporting shaft is further arranged on the uncoiling rack, a distance measuring photoelectric sensor is arranged on the supporting shaft, laser emitted by the distance measuring photoelectric sensor faces the uncoiling shaft and perpendicularly intersects with the central axis of the uncoiling shaft, and the distance measuring photoelectric sensor is used for monitoring the diameter of the roll paper in real time; the control box is provided with a controller used for outputting feedback signals to the PLC system according to the monitored diameter, and the PLC system displays the real-time roll paper length on a screen. The structure is simple and practical, the residual length of different raw paper can be accurately displayed in real time, workers can know the length of the residual raw paper more timely and visually in the production process, the reliability of paper changing and receiving is improved, waste is reduced, labor intensity is relieved, and production is smoother.

Description

Technical Field

[0001] This utility model relates to the field of impregnated paper production technology, and in particular to an unwinding device for a horizontal impregnation production line. Background Technology

[0002] With the improvement of people's living standards and the continuous enhancement of environmental awareness, the requirements for furniture are also getting higher and higher, and the quality control of furniture in international trade is becoming more and more stringent. In recent years, the demand for low-carbon and environmentally friendly furniture has grown rapidly, and impregnated paper has emerged accordingly. The current production steps of impregnated paper include: unwinding and pretreatment of the base paper, impregnating the base paper with urea-formaldehyde resin impregnation solution, and then putting the impregnated base paper into an oven; after the first drying, the paper is cooled and coated with urea-formaldehyde resin solution on both sides; the coated paper is then put into an oven again for secondary drying and cooling, and then cut into the required length by a cutting machine.

[0003] Horizontal impregnation production lines are used for the production of impregnated paper. Typically, the production line is at least 80 meters long. Since the intermediate drying oven and coating sections do not require human monitoring, communication between personnel often relies on walkie-talkies or the frequency of alarm rings. This necessitates a high degree of teamwork to avoid misunderstandings. The use and exchange of raw paper is a frequent issue encountered during production. Previously, the amount of raw paper used was calculated visually and by weighing during the unwinding process. This method was prone to inaccuracies, wasted production time, increased labor costs, and unnecessary waste. Later in the production process, when changing paper, visually judging the remaining amount could lead to inaccurate results, with excessive amounts causing waste, or insufficient amounts causing paper breaks, affecting the paper yield and production time. Summary of the Invention

[0004] The purpose of this invention is to provide an impregnation production structure that can monitor the length of the base paper in real time, thus effectively solving the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An impregnation production structure for real-time monitoring of the length of raw paper used includes an unwinding frame, on which an unwinding shaft and a control box with a display are mounted. The control box houses a PLC system. The unwinding shaft supports the paper roll by connecting to the core of the roll. The unwinding frame has a support shaft parallel to the unwinding shaft, and a distance-measuring photoelectric sensor is mounted on the support shaft. The laser emitted by the distance-measuring photoelectric sensor is directed towards the unwinding shaft and perpendicular to its central axis. The distance-measuring photoelectric sensor is used to monitor the diameter of the paper roll in real time. The control box has a controller that outputs a feedback signal to the PLC system based on the monitored diameter. After receiving the feedback signal from the controller, the PLC system displays the real-time paper roll length on the screen.

[0007] The above scheme is further described in that the controller includes an acquisition module for acquiring the size of the monitored diameter, a calculation module for calculating the corresponding length of raw paper to be used based on the size of the monitored diameter, and a sending module for outputting a feedback signal to the PLC system based on the calculation result.

[0008] The above scheme is further described as follows: the unwinding shaft is composed of two air-expanding shafts with opposite ends, and there are two sets of unwinding shafts. The two sets of unwinding shafts are set together on the flipping frame, which is assembled on the unwinding machine frame and rotates around the support shaft. The two sets of unwinding shafts are arranged symmetrically relative to the support shaft. There are two distance-measuring photoelectric sensors, which are configured one-to-one with the two sets of unwinding shafts.

[0009] A further improvement in the above scheme is that the control box is connected to the uncoiling frame via a rocker arm.

[0010] A further aspect of the above scheme is that the two ranging photoelectric sensors are respectively installed on two opposite sides of the support shaft, and the two ranging photoelectric sensors are on the same horizontal plane.

[0011] This invention installs a distance-measuring photoelectric sensor and controller on the uncoiler frame of the front-end uncoiler. The distance-measuring photoelectric sensor monitors the diameter of the paper roll in real time. The controller outputs a feedback signal to the PLC system based on the monitored diameter. After receiving the feedback signal from the controller, the PLC system displays the real-time paper roll length on the screen. This invention can accurately display the remaining length in real time for base paper of different weights and properties, achieving production flexibility. It allows workers to understand the remaining paper length more promptly and intuitively during production, improving the reliability of paper changing and splicing, reducing waste, alleviating labor intensity, making production smoother, and improving production efficiency. The structure is simple and practical, effectively assisting production and improving the operating rate and automation of the impregnation production line. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0013] Appendix Figure 2 for Figure 1 A top view of a partial structure in the embodiment;

[0014] Appendix Figure 3 This is a schematic diagram illustrating the implementation of this utility model on a production line. Detailed Implementation

[0015] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.

[0016] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0017] See Figure 1 , 2 Figure 3 shows a schematic diagram of a preferred embodiment of the present invention. The present invention relates to an impregnation production structure for real-time monitoring of the length of raw paper used, used on an impregnation production line. It includes an unwinding frame 1, an unwinding shaft 2 and a control box 3 with a display on the unwinding frame 1. The control box 3 integrates a PLC system. The unwinding shaft 2 supports the paper roll 100 by connecting to the core in the paper roll. Furthermore, the unwinding shaft 2 is composed of two air-expanding shafts with opposite ends. During use, the core is inserted from both ends of the paper roll 100, making disassembly and assembly quite convenient. The unwinding frame 1 is also equipped with a support shaft 4 parallel to the unwinding shaft 2, and a distance-measuring photoelectric sensor 5 is mounted on the support shaft 4. The laser emitted by the distance-measuring photoelectric sensor 5 is directed towards the unwinding shaft 2 and intersects perpendicularly with the central axis of the unwinding shaft 2. The distance-measuring photoelectric sensor 5 is used to monitor the diameter of the roll paper in real time. The control box 3 is equipped with a controller 6 that outputs a feedback signal to the PLC system based on the monitored diameter. After receiving the feedback signal from the controller, the PLC system displays the real-time roll paper length on the screen. This allows workers to understand the remaining length of the raw paper more promptly and intuitively during production, improves the reliability of paper changing and splicing, reduces waste, reduces labor intensity, makes production smoother, and improves production efficiency.

[0018] The controller 6 includes an acquisition module for acquiring the size of the monitored diameter, a calculation module for calculating the corresponding length of raw paper to be used based on the monitored diameter, and a sending module for outputting a feedback signal to the PLC system based on the calculation results. The calculation module further calculates the length of raw paper to be used and the remaining length of raw paper based on the changes in paper thickness and outer diameter.

[0019] There are two sets of unwinding shafts 2, which are mounted together on a tilting frame 7. The tilting frame 7 is assembled on the unwinding frame 1 and rotates around the support shaft 4. The two sets of unwinding shafts 2 are symmetrically arranged relative to the support shaft 4. There are two distance-measuring photoelectric sensors 5, which are configured one-to-one with the two sets of unwinding shafts 2. Furthermore, the two distance-measuring photoelectric sensors 5 are respectively installed on two opposite sides of the support shaft 4, and the two distance-measuring photoelectric sensors 5 are on the same horizontal plane, which facilitates installation and monitoring and improves monitoring stability and accuracy.

[0020] The control box 3 is connected to the unwinding frame 1 via the rocker arm 8, which facilitates adjustment and allows for operation and observation from different positions, thus improving convenience.

[0021] The work involves the following steps:

[0022] 1. Install the distance measuring photoelectric sensor 5 and check that the wiring is correct. Install an empty core (i.e., there is no paper being wound on the core) on the unwinding shaft 2, and ensure that the laser spot emitted by the distance measuring photoelectric sensor 5 is perpendicularly illuminating the empty core.

[0023] 2. If you need to reverse the sensor display, proceed to step 3; otherwise, proceed to step 4.

[0024] 3. Press the green button on the interface of control box 3 to enter the menu screen. The first line displays $MENU, and the second line displays A_OUT.

[0025] Press the white ∧ or V key until the second line displays DISPLAY;

[0026] Press the green button; the first line displays $DISPLAY, and the second line displays Units.

[0027] Press the white ∧ or V key until the second line displays View;

[0028] Press the green button once, and the first line will display $View, and the second line will display Normal;

[0029] Press the white Λ or V key to reverse the display content;

[0030] Press the green button to confirm;

[0031] Press the red button for 2 seconds to return to the normal display screen;

[0032] 4. Press the green button to enter the menu screen. The first line displays $MENU, and the second line displays A_OUT.

[0033] Press the green button once, the first line will display $A_OUT, and the second line will display Tch2Pt;

[0034] Press the green button once, the first line will display $Tch2Pt, and the second line will display Tch0V;

[0035] Press the green button once, and the second line will display "Teaching" while the green power light flashes;

[0036] If successful, the green power light will stop flashing, the first line will display $Tch2Pt, and the second line will display Tch0V;

[0037] If it fails, the green power light will flash rapidly and display Fai1, then the first line will display $Tch2Pt and the second line will display Tch0V;

[0038] 5. Load the largest roll of paper, 100, onto the unwinding spool 2;

[0039] 6. At this point, the first line should display STch2Pt, and the second line should display Tch0V;

[0040] Press the white △ or V key, and the second line will display Tch10V;

[0041] Press the green button once, and the second line will display "Teaching" while the green power light flashes;

[0042] If successful, the green power light will stop flashing, the first line will display $Tch2Pt, and the second line will display Tch10V;

[0043] If it fails, the green power light will flash rapidly and display Fai1, then the first line will display $Tch2Pt and the second line will display Tch10V;

[0044] 7. Press the red button for 2 seconds to return to the normal display screen;

[0045] Measure and record the diameter of the empty core and the maximum roll diameter in mm, rounded to the nearest integer, and input the data into the +13P1 touchscreen. After this adjustment, the distance measuring photoelectric sensor 5 can output a voltage of 0~10V between the diameter of the empty core and the maximum roll diameter. The controller 6 acquires and converts the output feedback signal to the PLC system. After receiving the feedback signal from the controller, the PLC system processes it and displays the real-time roll length on the screen.

[0046] Figure 3 As shown, in use, this invention is integrated into the impregnation production line and located upstream of the impregnation unit 200. The two sets of unwinding shafts 2 can alternately output raw paper to the impregnation unit 200 for impregnation processing. Through the cooperation of the distance measuring photoelectric sensor and the controller, and after the PLC system receives the feedback signal from the controller, it displays the real-time roll length on the screen, thereby providing an intuitive understanding of the remaining raw paper length.

[0047] This invention installs a distance-measuring photoelectric sensor and controller on the uncoiler frame of the front-end uncoiler. The distance-measuring photoelectric sensor monitors the diameter of the paper roll in real time. The controller outputs a feedback signal to the PLC system based on the monitored diameter. After receiving the feedback signal from the controller, the PLC system displays the real-time paper roll length on the screen. This invention can accurately display the remaining length in real time for base paper of different weights and properties, achieving production flexibility. It allows workers to understand the remaining paper length more promptly and intuitively during production, improving the reliability of paper changing and splicing, reducing waste, alleviating labor intensity, making production smoother, and improving production efficiency. The structure is simple and practical, effectively assisting production and improving the operating rate and automation of the impregnation production line.

[0048] Of course, the above detailed description of the present utility model in conjunction with the embodiments is only for illustrating the technical concept and features of the present utility model. Its purpose is to enable those skilled in the art to understand the content of the present utility model and implement it. Therefore, all equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. An impregnation production structure for real-time monitoring of the length of raw paper used, comprising an unwinding frame (1), wherein the unwinding frame (1) is provided with an unwinding shaft (2) and a control box (3) with a display, the control box (3) containing a PLC system, the unwinding shaft (2) supporting the roll paper (100) by connecting to the core of the roll paper, characterized in that: The unwinding frame (1) is provided with a support shaft (4) parallel to the unwinding shaft (2), and a distance measuring photoelectric sensor (5) is provided on the support shaft (4). The laser emitted by the distance measuring photoelectric sensor (5) is directed toward the unwinding shaft (2) and intersects perpendicularly with the central axis of the unwinding shaft (2). The distance measuring photoelectric sensor (5) is used to monitor the diameter of the paper roll in real time. The control box (3) is provided with a controller (6) for outputting a feedback signal to the PLC system according to the monitored diameter. After receiving the feedback signal from the controller, the PLC system displays the real-time paper roll length on the screen.

2. The impregnation production structure for real-time monitoring of the length of raw paper used, as described in claim 1, is characterized in that: The controller (6) includes an acquisition module for acquiring the size of the monitored diameter, a calculation module for calculating the length of the corresponding raw paper used based on the size of the monitored diameter, and a sending module for outputting a feedback signal to the PLC system based on the calculation result.

3. The impregnation production structure for real-time monitoring of the length of raw paper used, as described in claim 1, is characterized in that: The unwinding shaft (2) consists of two air-expanding shafts with opposite ends, and there are two sets of unwinding shafts (2). The two sets of unwinding shafts (2) are set together on the flipping frame (7). The flipping frame (7) is assembled on the unwinding frame (1) and rotates around the support shaft (4). The two sets of unwinding shafts (2) are arranged symmetrically relative to the support shaft (4). The distance measuring photoelectric sensor (5) consists of two and is configured one-to-one with the two sets of unwinding shafts (2).

4. The impregnation production structure for real-time monitoring of the length of raw paper used, as described in claim 1, is characterized in that: The control box (3) is connected to the uncoiling frame (1) via a rocker arm (8).

5. The impregnation production structure for real-time monitoring of the length of raw paper used, as described in claim 3, is characterized in that: The two distance measuring photoelectric sensors (5) are respectively installed on two opposite sides of the support shaft (4), and the two distance measuring photoelectric sensors (5) are on the same horizontal plane.

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