Laminated paper conveying, positioning and detecting equipment and control method

Abstract

The invention discloses coated paper conveying, positioning and detecting equipment and a control method, and relates to the technical field of coated paper production. According to the device, edge position plates and detection frames are arranged on the two sides of a guide plate, the detection frames are provided with a plurality of vertically-downward photoelectric probes, friction rollers are evenly arranged above the guide plate, the photoelectric probes and the friction rollers are alternately distributed, and the most upstream photoelectric probe is located on the upstream of the most upstream friction roller. An adjusting mechanism is installed on the outer side of the edge position plate, a guide cavity, a sliding sleeve and an electromagnetic module are arranged in the adjusting mechanism, the sliding sleeve is connected with a roller shaft rod of the friction roller, and a tension spring is arranged between the sliding sleeve and the electromagnetic module. The photoelectric probe is used for detecting edge signals of the lamination base paper, after position deviation is judged, the corresponding electromagnetic module is started to drive the friction roller to transversely move for deviation correction, and the deviation correction effect is verified through the downstream probe. The deviation can be accurately positioned, the body paper is prevented from being damaged, the production quality and the yield of the coated paper are improved, and the device is suitable for positioning detection and deviation correction in the coated paper conveying process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of production of coated paper, and particularly relates to a coated paper transmission positioning detection device and a control method. BACKGROUND

[0002] As a key material in the fields of packaging and printing, the transmission positioning precision of the coated paper directly determines the quality of the final product in the production process. The coated paper is required to be smoothly conducted along the preset reference line in the coating process. If the coated paper deviates horizontally, it will cause uneven coating of the coating layer, edge overflow, increase of waste ratio and other problems, and even cause equipment jamming and reduce production efficiency. Therefore, transmission positioning detection and deviation correction are one of the core links in the production of coated paper.

[0003] The coated paper transmission positioning device commonly used in the industry at present mainly has the following technical defects: firstly, the detection system layout is unreasonable, most of the devices arrange the detection elements and the conducting rollers side by side, which causes the logic of "adjusting first and then detecting" to be inverted, cannot capture the initial deviation in time, and the detection points are not fully covered, which makes it difficult to accurately locate the deviation position and degree, and easy to miss detection and misjudgment; secondly, the deviation correction method is extensive, and most of them use rigid mechanical pushing or large-stroke air cylinder driving, which is difficult to accurately control the force and stroke, and in the high-speed transmission scene, it is easy to cause the edge of the coated paper to wrinkle, micro-tear or stretch deformation, especially the damage to the thin coated paper is more obvious.

[0004] The above technical problems seriously restrict the stability and economy of the production of coated paper, and an accurate, gentle and efficient transmission, positioning detection device is needed to solve the above problems. SUMMARY

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application provides a coated paper transmission positioning detection device, which comprises a guide plate located at the inlet position of a coating machine, and a plurality of friction rollers are uniformly arranged above the guide plate and abut against the bottom surface of the coated paper. The guide plate is provided with edge position plates on both sides, each edge position plate is fixedly installed with an adjusting mechanism on the outer side, each adjusting mechanism is provided with a plurality of guide cavities, a sliding sleeve is slidingly arranged in the guide cavity, and an inner bearing connected with the side end roller shaft of the friction roller is arranged in the sliding sleeve. A detection frame is fixedly installed on the upper side of the edge of the guide plate on both sides, the detection frame is provided with a plurality of photoelectric probes vertically downward, and the photoelectric probes and the friction rollers are alternately distributed. Among them, taking the conduction direction of the coated paper as the reference: the most upstream side photoelectric probe is located upstream of the most upstream side friction roller, and the distance between the multiple photoelectric probes on the same side and the edge position plate increases in turn. The adjusting mechanism is further provided with a plurality of electromagnetic modules facing the guide cavities, the side of the sliding sleeve facing the electromagnetic modules is provided with a magnetic attraction block aligned with the electromagnetic modules, and a tension spring is arranged between the sliding sleeve and the electromagnetic modules.

[0007] As a preferred technical solution of the device of the present invention: the edge plate is provided with a plurality of edge through grooves that communicate with the guide cavity, and the roller shaft of the friction roller moves through the edge through grooves.

[0008] As a preferred technical solution of the device of the present invention: the guide cavity of the adjustment mechanism is provided with sliding grooves on both sides, and guide rollers are arranged around the sliding sleeve, and the guide rollers are installed in the sliding grooves.

[0009] As a preferred technical solution of the device of the present invention: the side of the friction roller ring is a rough surface, and the axial length of the friction roller is greater than the transverse width of the coated base paper.

[0010] As a preferred technical solution of the device of the present invention: multiple photoelectric probes of one detection frame and multiple photoelectric probes of another detection frame are independently aligned, and the distance between the photoelectric probes of one detection frame and the photoelectric probes of the other detection frame is not less than the transverse width of the coated base paper.

[0011] As a preferred technical solution of the device of the present invention: among the pairs of photoelectric probes with the two sets of probe frames aligned, the spacing between the non-downstream pairs of photoelectric probes is greater than the transverse width of the coating paper, and the spacing between the downstream pairs of photoelectric probes is the same as the transverse width of the coating paper.

[0012] As a preferred technical solution of the device of the present invention: let the distances between the multiple photoelectric probes on the same side and the edge plate be L1, L2, L3, ..., L... n Then L2-L1=L3-L2=L4-L3=...=L n -L n-1 =Δd, where Δd is the preset reference distance difference.

[0013] This invention provides a control method for a coated paper transport and positioning detection device, comprising the following:

[0014] Step 1, Initial Transmission Preparation: The coated base paper enters above the guide plate and comes into contact with the bottom surface of the friction roller. The electromagnetic module is de-energized, and the friction roller maintains its reference position under the action of the tension spring, thus initiating the initial transmission.

[0015] Step 2, Detection system startup: All photoelectric probes start up synchronously, vertically downwards to continuously detect the edge area of ​​the coated base paper, and monitor the light path obstruction signal.

[0016] Step 3, Real-time Signal Acquisition: The photoelectric probe captures signals in the detection area, distinguishes whether there is any obstruction by the coating paper, and generates detection data.

[0017] Step 4, Deviation Judgment and Analysis: Compare the signals of a set of photoelectric probes aligned on both sides of the detection frame. If there is no obstruction, the position is determined to be compliant. If there is obstruction on either side, the deviation is determined to be biased towards that side.

[0018] Step 5, Correction command trigger: For the deviation side, the electromagnetic module of the corresponding downstream friction roller is energized to generate a magnetic attraction force. The electromagnetic module attracts the magnetic block of the sliding sleeve, which drives the sliding sleeve to slide along the guide cavity, driving the friction roller to move laterally, and pushing the paper to correct its deviation through the friction force of the rough surface.

[0019] Step 6, Correction and Reset Operation: The electromagnetic module is de-energized after a preset time, and the tension spring's reset force drives the sliding sleeve and friction roller back to the reference position.

[0020] Step 7, Downstream Verification and Testing: A set of photoelectric probes aligned downstream on both sides of the detection frame re-detects the corrected paper to verify whether the deviation has been eliminated.

[0021] Step 8, Result Feedback Processing: If there is no obstruction, continue normal transmission; if there is still obstruction, repeat the correction operation until the original paper position is compliant.

[0022] Compared with existing technologies, the beneficial effects of this invention are:

[0023] In this invention, the photoelectric probe and friction roller are alternately distributed with the upstream probe positioned in front, forming a continuous "detect first, adjust later" mode. Combined with the design of increasing spacing between the probe on the same side and the edge plate, it can fully cover the transverse deviation range of the original paper, accurately locate the position and degree of deviation, and avoid missed detection and misjudgment.

[0024] In this invention, an adaptation rule of "multiple small-force corrections upstream and single corrections downstream" is adopted to avoid paper wrinkles or micro-tears caused by large strokes and large-force adjustments, effectively protecting the integrity of the paper. The closed-loop control logic verifies the correction effect through downstream probes to ensure effective elimination of deviations, avoid continuous deviations from affecting subsequent coating processes, and ensure production continuity.

[0025] In this invention, the equipment monitors the position of the raw paper in real time throughout the process, and accurately controls the transmission of the raw paper along the preset range, providing a stable positioning basis for the subsequent coating process, reducing problems such as uneven coating and excessive edge waste caused by positioning deviation, and significantly improving the production quality and yield of coated paper. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention.

[0027] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0028] Figure 3This is a schematic diagram of the internal structure of a component of the device of the present invention.

[0029] Figure 4 for Figure 3 A magnified structural diagram of section B in the middle.

[0030] Figure 5 for Figure 4 A magnified structural diagram of part C in the middle.

[0031] Figure 6 This is a schematic diagram of the conduction state of the coated base paper after correction.

[0032] Figure 7 for Figure 6 A magnified structural diagram of part D in the middle.

[0033] The components are: 1-coating machine; 2-guide plate, 201-edge plate, 202-edge through groove; 3-friction roller, 301-roller shaft; 4-detection frame, 401-photoelectric probe; 5-adjustment mechanism, 501-guide cavity, 502-slide groove; 6-coating base paper; 7-sliding sleeve, 701-inner bearing, 702-guide roller, 703-magnetic block; 8-tension spring; 9-electromagnetic module. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] Example 1: This invention designs a coating paper transport positioning and detection device, including a coating machine 1, a guide plate 2, a friction roller 3, a detection frame 4, an adjustment mechanism 5, an electromagnetic module 9, etc., with the specific configuration as follows:

[0036] Combination Figure 1 The inlet position of the coating machine 1 is the initial transmission position of the coating base paper 6, which is the installation reference of the guide plate 2.

[0037] Combination Figure 1 The guide plate 2 is fixedly installed at the inlet of the coating machine 1 to provide a horizontal transmission support surface for the coating base paper 6. The two sides are integrally formed with edge plates 201, and a detector frame 4 is fixedly installed on the upper side of each side edge, forming an overall structure of "middle support, two-sided limit + detection".

[0038] Combination Figure 1 , Figure 2The side plate 201 is located on both sides of the guide plate 2. The outer side is used to fix and install the adjustment mechanism 5. Multiple side through grooves 202 are opened on the plate body. The side through grooves 202 are connected to the guide cavity 501 of the adjustment mechanism 5, providing a lateral movement channel for the roller shaft 301 of the friction roller 3.

[0039] Combination Figure 1 , Figure 2 The edge groove 202 is opened on the edge plate 201. The size of the groove is adapted to the diameter of the roller 301 to ensure that the roller 301 can slide laterally along the groove, while limiting the longitudinal displacement of the roller 301 to ensure stable contact between the friction roller 3 and the coated base paper 6.

[0040] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 Friction rollers 3 are evenly distributed above guide plates 2. The side of the roller body ring is roughened (to enhance the friction with the bottom surface of the coated base paper 6). The axial length dimension is greater than the transverse width dimension of the coated base paper 6 to ensure complete coverage of the transverse range of the coated base paper 6. Roller shafts 301 are integrally connected to both ends of the roller body. After the roller shafts 301 move through the edge slots 202, they are connected to the inner bearings 701 of the sliding sleeves 7. The roller shafts 301 are axial extensions of the friction rollers 3. One end is fixedly connected to the friction rollers 3, and the other end passes through the edge slots 202 and is embedded in the inner bearings 701. The inner bearings 701 enable the friction rollers 3 to rotate freely, and at the same time, the friction rollers 3 move laterally synchronously with the transverse movement of the sliding sleeves 7.

[0041] Combination Figure 1 , Figure 6 There are two detection frames 4, fixed to the upper sides of the guide plate 2 on both sides respectively. Each detection frame 4 is equipped with multiple photoelectric probes 401. The photoelectric probes 401 and the friction rollers 3 are alternately distributed to form a continuous detection layout of "detection-conduction-detection". The photoelectric probes 401 detect vertically downwards. Taking the conduction direction of the coated base paper 6 as the reference, the photoelectric probe 401 on the uppermost side is located upstream of the uppermost friction roller 3. The distance between the multiple photoelectric probes 401 on the same side and the edge plate 201 increases sequentially. Let the distances between the multiple photoelectric probes 401 on the same side and the edge plate be L1, L2, L3, ..., L n Then the distance difference satisfies L2-L1=L3-L2=L4-L3=...=L n -L n-1=Δd (Δd is the preset reference distance difference). The photoelectric probes 401 on the two probe frames 4 are independently aligned. Among the pairs of photoelectric probes 401 aligned on the two sets of probe frames 4, the spacing between the non-downstream pairs of photoelectric probes 401 is greater than the transverse width of the coated base paper 6, and the spacing between the downstream pairs of photoelectric probes 401 is the same as the transverse width of the coated base paper 6.

[0042] Combination Figure 1 , Figure 3 , Figure 4 , Figure 5 The adjustment mechanism 5 is fixedly installed on the outer side of the edge plate 201. Each edge plate 201 corresponds to a set of adjustment mechanisms 5. The adjustment mechanism 5 has multiple guide cavities 501 (corresponding one-to-one with the edge through slots 202). The two side walls of the guide cavity 501 have sliding grooves 502. At the same time, multiple electromagnetic modules 9 facing the guide cavity 501 are configured to provide power and guidance for the lateral displacement of the friction roller 3. The guide cavity 501 is opened inside the adjustment mechanism 5. The guide cavity 501 is the installation and sliding cavity of the sliding sleeve 7. The inner wall of the cavity is clearance-fitted with the outer periphery of the sliding sleeve 7. The sliding grooves 502 on both sides form a sliding guide pair with the guide rollers 702 of the sliding sleeve 7 to ensure that the sliding sleeve 7 moves smoothly in the lateral direction. The sliding grooves 502 are opened on both side walls of the guide cavity 501. The grooves are long and strip-shaped and are adapted to the rolling trajectory of the guide rollers 702 to restrict the rotation of the sliding sleeve 7 and only allow it to move in the lateral direction (the width direction of the coated base paper 6).

[0043] Combination Figure 1 , Figure 6 The coated base paper 6 is transmitted along the support surface of the guide plate 2, and its bottom surface abuts against the rough surface of the friction roller 3. Forward transmission is achieved by the rotation of the friction roller 3, and correction adjustment is achieved by the lateral displacement of the friction roller 3.

[0044] Combination Figure 3 , Figure 4 , Figure 5The sliding sleeve 7 is slidably disposed within the guide cavity 501. An inner bearing 701 is fixedly installed within its inner circumference, and a guide roller 702 is fixedly disposed on its outer circumference. A magnetic block 703 is fixedly disposed on the side facing the electromagnetic module 9. The overall structure is a composite structure of "inner bearing, outer guide, and side magnetic attraction," used to connect the friction roller 3 and the power component of the adjustment mechanism 5. The inner bearing 701 is fixed to the inner circumference of the sliding sleeve 7, with its inner ring interference-fitted with the roller shaft 301 and its outer ring fixedly connected to the sliding sleeve 7, enabling relative rotation between the roller shaft 301 and the sliding sleeve 7, ensuring that the friction roller 3 can freely roll and transfer the coated base paper 6. The guide roller 702 is fixed to the outer circumference of the sliding sleeve 7 and rolls in cooperation with the groove 502 of the guide cavity 501, converting the sliding friction between the sliding sleeve 7 and the guide cavity 501 into rolling friction, reducing lateral movement resistance and improving the correction response speed. The magnetic block 703 is fixed on the side of the sliding sleeve 7 facing the electromagnetic module 9 and is axially aligned with the electromagnetic module 9. It is made of permanent magnet material and can generate magnetic attraction when the electromagnetic module 9 is energized, thereby driving the sliding sleeve 7 to move towards the electromagnetic module 9.

[0045] Combination Figure 3 , Figure 4 , Figure 5 Tension spring 8 is connected between sliding sleeve 7 and electromagnetic module 9. Initially, it is in a naturally extended state. When electromagnetic module 9 is energized and attracts sliding sleeve 7, tension spring 8 is compressed. When electromagnetic module 9 is de-energized, the restoring force of tension spring 8 drives sliding sleeve 7 back to its initial position, realizing the reset of friction roller 3. Electromagnetic module 9 is fixed on adjustment mechanism 5, facing guide cavity 501, and aligned one-to-one with magnetic attraction block 703 of sliding sleeve 7. It generates magnetic attraction force when energized and loses magnetic attraction force when de-energized, providing a power source for the lateral movement of sliding sleeve 7. Its energization time can be preset (e.g., 2 seconds).

[0046] In addition, combined Figure 1 The photoelectric probe 401 and the friction roller 3 are alternately distributed, with the upstream photoelectric probe 401 located upstream of the upstream friction roller 3, realizing a continuous working mode of "detect first, then adjust" to ensure that deviations are detected and corrected in a timely manner. The distance between the photoelectric probe 401 on the same side and the edge plate 201 increases by equal arithmetic increments to ensure that the detection range covers the possible lateral deviation range of the coated base paper 6, and at the same time, it is convenient to judge the degree of deviation by the position of the detection probe.

[0047] Combination Figure 1 , Figure 6 The rough surface structure increases the friction between the coated base paper 6 and the coated base paper 6. The axial length is greater than the transverse width of the coated base paper 6, ensuring that the force is evenly distributed during correction and avoiding paper damage caused by localized force.

[0048] Combination Figure 2 , Figure 3 , Figure 4 , Figure 5The guide roller 702 of the sliding sleeve 7 cooperates with the sliding groove 502 of the guide cavity 501, and together with the side through groove 202, limits the roller shaft 301, ensuring that the friction roller 3 moves smoothly in the lateral direction without jamming or deviation. The tension spring 8 enables the friction roller 3 to automatically reset after the electromagnetic module 9 is powered off, ensuring that the reference position of the equipment is stable in the non-correction state.

[0049] Example 2: This invention designs a control method for a coated paper transport and positioning detection device, the details of which are as follows:

[0050] (I) Fundamentals of Control Logic

[0051] The control method is based on a closed-loop logic of "detection-judgment-correction-verification". The occlusion signal of the photoelectric probe 401 is used to determine whether the lateral position of the coated base paper 6 is compliant. The lateral movement of the friction roller 3 is controlled by the electromagnetic module 9 to achieve correction. The correction effect is then verified by the downstream photoelectric probe 401 to ensure that the coated base paper 6 always conducts along the preset lateral range.

[0052] (II) Specific Control Steps

[0053] Initial transmission stage: The coated base paper 6 enters above the guide plate 2 and rolls into contact with the bottom surface of the friction roller 3 above the guide plate 2. The friction roller 3 drives the coated base paper 6 forward along the transmission direction by rotating itself. At this time, all electromagnetic modules 9 are in the de-energized state, and the friction roller 3 maintains the reference position under the action of the tension spring 8.

[0054] Detection start-up phase: All photoelectric probes 401 start up synchronously, vertically downwards to continuously detect the edge area of ​​the coated base paper 6 above the friction roller 3, and detect whether the coated base paper 6 is blocking the detection light path of the photoelectric probe 401.

[0055] Signal Judgment and Corrective Execution:

[0056] Scenario 1: If neither of the two photoelectric probes 401 aligned with the two probe frames 4 detects the blocking signal of the coated base paper 6, it means that the lateral position of the coated base paper 6 is compliant and without deviation within the transmission area corresponding to the photoelectric probe 401. At this time, the electromagnetic module 9 aligned with the downstream friction roller 3 adjacent to the photoelectric probe 401 remains unpowered, the friction roller 3 maintains the reference position, and the coated base paper 6 is transmitted normally.

[0057] Scenario 2: If any one of the photoelectric probes 401 in a set of photoelectric probes 401 aligned with the two probe frames 4 detects a signal of obstruction from the coated base paper 6, it indicates that there is a lateral deviation (biased towards the side where the obstruction signal was detected) in the conduction area corresponding to that set of photoelectric probes 401. In this case, the electromagnetic module 9 aligned with the downstream friction roller 3 adjacent to the photoelectric probe 401 that did not detect the obstruction signal is energized once (the energizing time is preset to 2 seconds). After the electromagnetic module 9 is energized, it generates a magnetic attraction force, attracting the magnetic block 703 of the sliding sleeve 7, causing the sliding sleeve 7 to move laterally along the guide cavity 501 towards the electromagnetic module 9. The sliding sleeve 7 drives the roller shaft 301 to move laterally synchronously through the inner bearing 701, thereby driving the friction roller 3 to move laterally. When the friction roller 3 moves laterally, its rough surface generates a lateral friction force with the bottom surface of the coated base paper 6, pushing the coated base paper 6 to adjust its position in the correct direction.

[0058] Correction verification and feedback:

[0059] After a single correction is completed (the electromagnetic module 9 is de-energized and the friction roller 3 is reset under the action of the tension spring 8), the subsequent photoelectric probe 401 (if present) downstream of the correction area will detect the lateral position of the coated base paper 6 again.

[0060] If the downstream photoelectric probe 401 returns an unobstructed signal, the correction is deemed effective, the coated base paper 6 returns to normal transmission status, and subsequent monitoring continues through the photoelectric probe 401.

[0061] If the downstream photoelectric probe 401 still detects the obstruction signal, it means that the single correction has not completely eliminated the deviation. The correction operation in case two above can be repeated once until the deviation is eliminated.

[0062] Correction force adaptation rule: Based on the transmission direction of the coated base paper 6, the closer the photoelectric probe 401 detects that the transverse position of the coated base paper 6 does not meet the requirements, the earlier the deviation occurs, and the more correction times can be used in the future. Therefore, the friction force between the friction roller 3 and the coated base paper 6 is set to be relatively small. The degree of transverse correction of the coated base paper 6 driven by a single friction roller 3 is controlled within a small range to avoid damage such as wrinkles and micro-tears on the edge of the coated base paper 6 due to large stroke and large force correction.

[0063] Example: If neither of the photoelectric probes 401 on the two probe frames 4 that are not aligned at the very bottom detects any obstruction signal, but only one of the photoelectric probes 401 aligned at the very bottom detects an obstruction signal, it indicates that the lateral deviation of the coated base paper 6 occurs at the end of the transmission. The deviation is slight and can be basically eliminated by one correction operation without the need for repeated correction.

[0064] (III) Controlling core advantages

[0065] This invention utilizes an "aligned photoelectric probe group 401" for precise location of deviations. The evenly distributed photoelectric probes 401 quantify the degree of deviation, adapting to different levels of correction intensity. In this invention, when a deviation occurs upstream of the coating base paper, a design of multiple small-intensity corrections avoids paper damage and improves transmission stability. This invention employs a closed-loop control system of detection-correction-verification to ensure timely correction of deviations and verifiable correction effects, preventing persistent deviations from affecting subsequent coating processes.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coating paper transfer positioning and detection device, characterized in that: Includes a guide plate (2) located at the inlet of the coating machine (1), and multiple friction rollers (3) that abut against the bottom surface of the coating base paper (6) are evenly arranged above the guide plate (2). Side plates (201) are provided on both sides of the guide plate (2). An adjustment mechanism (5) is fixedly installed on the outer side of each side plate (201). Each adjustment mechanism (5) has multiple guide cavities (501). A sliding sleeve (7) is slidably arranged in the guide cavity (501). An inner bearing (701) connected to the roller shaft (301) at the side end of the friction roller (3) is arranged in the inner circumference of the sliding sleeve (7). A detector frame (4) is fixedly installed on the upper side of both sides of the guide plate (2). The detector frame (4) is equipped with multiple vertically downward-facing photoelectric probes (401). The photoelectric probes (401) and the friction roller (3) are distributed alternately in sequence. Among them, taking the transmission direction of the coated base paper (6) as the reference: the upstream photoelectric probe (401) is located upstream of the upstream friction roller (3), and the distance between multiple photoelectric probes (401) on the same side and the edge plate (201) increases sequentially; The adjustment mechanism (5) is also equipped with a plurality of electromagnetic modules (9) facing the guide cavity (501). The sliding sleeve (7) is provided with a magnetic block (703) aligned with the electromagnetic module (9) on the side facing the electromagnetic module (9). A tension spring (8) is provided between the sliding sleeve (7) and the electromagnetic module (9).

2. The coating paper transfer positioning and detection device according to claim 1, characterized in that: The edge plate (201) has multiple edge through grooves (202) that communicate with the guide cavity (501), and the roller shaft (301) of the friction roller (3) moves through the edge through grooves (202).

3. The coating paper transfer positioning and detection device according to claim 1, characterized in that: The guide cavity (501) of the adjustment mechanism (5) has grooves (502) on both sides. The outer side of the sliding sleeve (7) is provided with guide rollers (702), and the guide rollers (702) are installed in the grooves (502).

4. The coating paper transfer positioning and detection device according to claim 1, characterized in that: The friction roller (3) has a rough surface on its ring side, and the axial length of the friction roller (3) is greater than the transverse width of the coated base paper (6).

5. The coating paper transfer positioning and detection device according to claim 1, characterized in that: Multiple photoelectric probes (401) of one detector frame (4) are independently aligned with multiple photoelectric probes (401) of another detector frame (4). The distance between the photoelectric probes (401) of one detector frame (4) and the photoelectric probes (401) of the other detector frame (4) is not less than the transverse width of the coated base paper (6).

6. The coating paper transfer positioning and detection device according to claim 5, characterized in that: In the pair of photoelectric probes (401) with the two sets of probe frames (4) aligned, the spacing between the non-downstream pair of photoelectric probes (401) is greater than the transverse width of the coated base paper (6), while the spacing between the downstream pair of photoelectric probes (401) is the same as the transverse width of the coated base paper (6).

7. The coating paper transfer positioning and detection device according to claim 1, characterized in that: Let the distances between multiple photoelectric probes (401) on the same side and the edge plate (201) be L1, L2, L3, ..., L... n Then L2-L1=L3-L2=L4-L3=...=L n -L n-1 =Δd, where Δd is the preset reference distance difference.

8. A control method for a coated paper transport and positioning detection device, characterized in that, A coated paper transfer and positioning detection device according to any one of claims 1 to 7, comprising the following: Step 1, Initial Transmission Preparation: The coated base paper (6) enters above the guide plate (2) and comes into contact with the bottom surface of the friction roller (3). The electromagnetic module (9) is in a de-energized state. The friction roller (3) maintains the reference position under the action of the tension spring (8) and the initial transmission is started. Step 2, Detection system start-up: All photoelectric probes (401) start up synchronously, vertically downwards to continuously detect the edge area of ​​the coated base paper (6) and monitor the light path blockage signal; Step 3, real-time signal acquisition: The photoelectric probe (401) captures the signal in the detection area, distinguishes whether there is any obstruction by the coating paper (6), and forms detection data; Step 4, Deviation Judgment and Analysis: Compare the signals of a set of photoelectric probes (401) aligned on both sides of the detection frame (4). If there is no obstruction, the position is determined to be compliant. If there is obstruction, the deviation is determined to be biased towards that side. Step 5, correction command trigger: For the deviation side, the electromagnetic module (9) of the corresponding downstream friction roller (3) is energized to generate a magnetic attraction force. The electromagnetic module (9) attracts the magnetic block (703) of the sliding sleeve (7), which drives the sliding sleeve (7) to slide along the guide cavity (501), driving the friction roller (3) to move laterally and pushing the paper to correct its deviation through the friction force of the rough surface. Step 6, Correction and Reset Operation: The electromagnetic module (9) is de-energized for a preset time, and the tension spring (8) resets its elastic force to drive the sliding sleeve (7) and friction roller (3) back to the reference position; Step 7, downstream verification and testing: A set of photoelectric probes (401) aligned downstream of the probe frames on both sides will re-detect the corrected paper to verify whether the deviation has been eliminated; Step 8, Result Feedback Processing: If there is no obstruction, continue normal transmission; if there is still obstruction, repeat the correction operation until the original paper position is compliant.

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