A kind of coated paper transmission positioning detection equipment and control method

Abstract

The application discloses a kind of coated paper transmission positioning detection equipment and control method, it is related to coated paper production technical field.In the application: the side of guide plate is equipped with edge plate and detection frame, detection frame is equipped with multiple vertical downward photoelectric probe, friction roller is evenly configured on the top of guide plate, photoelectric probe and friction roller are alternately distributed and the most upstream photoelectric probe is located in the most upstream friction roller upstream.Edge plate outside installs adjusting mechanism, adjusting mechanism has guide cavity, sliding sleeve, electromagnetic module, sliding sleeve is connected with the roller shaft of friction roller, and tension spring is arranged between sliding sleeve and electromagnetic module.The edge signal of coated base paper is detected by photoelectric probe in the application, after judging position deviation, corresponding electromagnetic module is started to drive friction roller to move transversely and correct deviation, and the correction effect is verified by downstream probe.The application can accurately position deviation, avoid base paper damage, improve coated paper production quality and yield, and be suitable for positioning detection and correction in coated paper transmission 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 around 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 scheme of the device of the application: the side plate is provided with a plurality of side position through grooves communicating with the guide cavity, and the roller shaft of the friction roller is movably arranged through the side position through grooves.

[0008] As a preferred technical scheme of the device of the application: the guide cavity of the adjusting mechanism is provided with a sliding groove on the two side walls, and a guide roller is arranged on the outer periphery of the sliding sleeve and is matched and installed at the position of the sliding groove.

[0009] As a preferred technical scheme of the device of the application: the side surface 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 scheme of the device of the application: the plurality of photoelectric probes of one detection frame are independently aligned with the plurality of photoelectric probes of another detection frame, and the distance between the photoelectric probes of the 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 scheme of the device of the application: among the pairs of photoelectric probes of the two groups of detection frames, the distance between the non-downstream pairs of photoelectric probes is greater than the transverse width of the coated base paper, and the distance between the downstream pairs of photoelectric probes is the same as the transverse width of the coated base paper.

[0012] As a preferred technical scheme of the device of the application: the distance between the plurality of photoelectric probes on the same side and the side plate is L1, L2, L3,..., L n , then L2-L1=L3-L2=L4-L3=...=L n -L n-1 =Δd, wherein Δd is a preset reference distance difference.

[0013] The application provides a control method of a coated paper transmission positioning detection device, which comprises the following contents.

[0014] Link one, initial conduction preparation: the coated base paper enters above the guide plate and abuts against the bottom surface of the friction roller, the electromagnetic module is in a power-off state, the friction roller keeps a reference position under the action of the tension spring, and initial transmission is started.

[0015] Link two, detection system starting: all the photoelectric probes are synchronously started, continuously detect the edge region of the coated base paper vertically downward, and monitor the light path blocking signal.

[0016] Link three, real-time signal acquisition: the photoelectric probes capture the signals of the detection region, distinguish whether there is a coated base paper blocking condition, and form detection data.

[0017] Step four, deviation judgment analysis: compare the signals of the photoelectric probe of the alignment of the two sides of the detection frame, and determine that the position is in compliance if there is no shielding, and determine the deviation direction to the side if there is shielding.

[0018] Step five, deviation correction instruction triggering: for the deviation side, the electromagnetic module of the corresponding downstream friction roller is started to generate magnetic attraction force, the electromagnetic module adsorbs the magnetic attraction block of the sliding sleeve, drives the sliding sleeve to slide along the guide cavity, drives the friction roller to move transversely, and pushes the base paper to correct deviation through the friction force of the rough surface.

[0019] Step six, deviation correction reset operation: the electromagnetic module is powered off according to the preset time length, and the reset elastic force of the tension spring drives the sliding sleeve and the friction roller to return to the reference position.

[0020] Step seven, downstream verification detection: the photoelectric probe of the alignment of the two sides of the detection frame downstream detects the base paper again after correction, and verifies whether the deviation is eliminated.

[0021] Step eight, result feedback processing: if there is no shielding, the normal transmission is maintained, and if there is still shielding, the deviation correction operation is repeated until the base paper position is in compliance.

[0022] Compared with the prior art, the beneficial effects of the present application are:

[0023] In the present application, the photoelectric probe and the friction roller are alternately distributed and the uppermost upstream probe is preposed, forming a continuous mode of "detecting first and adjusting later", and the same side probe and the edge plate are designed with an incrementally increasing interval, which can fully cover the base paper transverse deviation interval, accurately locate the deviation position and degree, and avoid missed detection and misjudgment.

[0024] In the present application, the adaptive rule of "small force multiple correction upstream and single correction downstream" is adopted, which avoids the wrinkles or micro-tears of the base paper caused by large stroke and large force adjustment, effectively protects the integrity of the base paper, and ensures that the deviation is effectively eliminated to avoid the continuous deviation affecting the subsequent film coating process and ensure the production continuity.

[0025] In the present application, the equipment monitors the base paper transmission positioning state in real time throughout the whole process, accurately controls the base paper to conduct along the preset range, provides a stable positioning basis for the subsequent film coating process, reduces the problems of uneven film coating and excessive edge waste caused by positioning deviation, and significantly improves the production quality and yield of the film coated paper. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure schematic diagram of the equipment of the present application.

[0027] Figure 2 It is Figure 1 It is the structure schematic diagram of the local amplification of A in the middle.

[0028] Figure 3The internal structure diagram of the device component of the present application.

[0029] Figure 4 The structure diagram of the present application is enlarged at B. Figure 3 The structure diagram of the present application is enlarged at C.

[0030] Figure 5 The structure diagram of the present application is enlarged at D. Figure 4 The structure diagram of the present application is enlarged at C.

[0031] Figure 6 The conduction state diagram of the present application is enlarged at B.

[0032] Figure 7 The structure diagram of the present application is enlarged at D. Figure 6 The structure diagram of the present application is enlarged at C.

[0033] Wherein: 1 - laminating machine; 2 - guide plate, 201 - side plate, 202 - side slot; 3 - friction roller, 301 - roller shaft; 4 - detection frame, 401 - photoelectric probe; 5 - adjustment mechanism, 501 - guide cavity, 502 - sliding groove; 6 - laminated paper; 7 - sliding sleeve, 701 - inner bearing, 702 - guide roller, 703 - magnetic block; 8 - tension spring; 9 - electromagnetic module. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0035] Example one, the present application designs a laminated paper transmission positioning detection device, including laminating machine 1, guide plate 2, friction roller 3, detection frame 4, adjustment mechanism 5, electromagnetic module 9 and the like, the specific configuration is as follows:

[0036] In combination with Figure 1 , the laminating machine 1 inlet position is the initial conduction station of the laminated paper 6, which is the installation reference of the guide plate 2.

[0037] In combination with Figure 1 , the guide plate 2 is fixedly installed at the laminating machine 1 inlet position, which provides a horizontal conduction support surface for the laminated paper 6, and the side plates 201 are integrally formed on both sides, and one detection frame 4 is fixedly installed on the upper side of the edge of both sides respectively, forming an overall structure of "middle support, both sides limit + detection".

[0038] In combination with Figure 1 , Figure 2The edge position plate 201 is located at the two side edges of the guide plate 2, and the outer side is used for fixedly mounting the adjusting mechanism 5. A plurality of edge position through grooves 202 are formed in the plate body, and the edge position through grooves 202 and the guide cavities 501 of the adjusting mechanism 5 are in one-to-one communication, thereby providing a transverse movement channel for the roller shaft rod 301 of the friction roller 3.

[0039] In combination Figure 1 , Figure 2 The edge position through groove 202 is formed in the edge position plate 201, and the groove size is matched with the diameter of the roller shaft rod 301, so that the roller shaft rod 301 can slide transversely along the groove, and the longitudinal displacement of the roller shaft rod 301 is limited, thereby ensuring the stable abutment of the friction roller 3 and the laminated base paper 6.

[0040] In combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 The friction rollers 3 are uniformly arranged above the guide plate 2. The ring side surface of the roller body is a rough surface (to enhance the friction force with the bottom surface of the laminated base paper 6), and the axial length size is greater than the transverse width size of the laminated base paper 6, so as to ensure that the transverse range of the laminated base paper 6 is completely covered. The roller shaft rod 301 is integrally connected to the two ends of the roller body, and the roller shaft rod 301 is movably inserted into the edge position through groove 202 and is connected with the inner bearing 701 of the sliding sleeve 7. The roller shaft rod 301 is an axial extension structure of the friction roller 3, one end of which is fixedly connected with the friction roller 3, and the other end is inserted into the inner bearing 701 after passing through the edge position through groove 202, so as to realize the free rotation of the friction roller 3 through the inner bearing 701, and the friction roller 3 is driven to move transversely at the same time with the sliding sleeve 7.

[0041] In combination Figure 1 , Figure 6 The detection frame 4 is arranged on the upper side of the two side edges of the guide plate 2, and a plurality of photoelectric probes 401 are arranged on each detection frame 4. The photoelectric probes 401 and the friction rollers 3 are alternately arranged, thereby forming a continuous detection layout of “detection-conduction-detection”. The photoelectric probes 401 vertically downwardly detect, and the uppermost photoelectric probe 401 on the same side is located on the upstream side of the uppermost friction roller 3. The distances between the photoelectric probes 401 on the same side and the edge position plate 201 are sequentially increased, and the distances between the photoelectric probes 401 on the same side and the edge position plate 201 are sequentially set as L1, L2, L3,..., Ln. n Then the distance difference satisfies L2-L1=L3-L2=L4-L3=...=Ln-Ln-1. n n-1 ​= Δd (Δd is a preset reference distance difference). The photoelectric probes 401 on the two detection frames 4 are independently aligned, and the spacing size between the non-downstream pair of photoelectric probes 401 is greater than the transverse width size of the coated base paper 6, and the spacing size between the downstream pair of photoelectric probes 401 is the same as the transverse width size of the coated base paper 6.

[0042] In combination Figure 1 , Figure 3 , Figure 4 , Figure 5 The adjusting mechanism 5 is fixedly installed on the outer side of the side position plate 201, and each side position plate 201 corresponds to a group of adjusting mechanisms 5. A plurality of guide cavities 501 (corresponding to the side position grooves 202) are formed in the adjusting mechanism 5. The guide cavities 501 are provided with sliding grooves 502 on the two side walls, and are provided with a plurality of electromagnetic modules 9 facing the guide cavities 501, which provide power and guidance for the transverse displacement of the friction roller 3. The guide cavities 501 are formed in the adjusting mechanism 5, and the guide cavities 501 are sliding cavities for the installation and sliding of the sliding sleeve 7. The gap between the inner wall of the cavity and the periphery of the sliding sleeve 7 is matched, the sliding grooves 502 on the two sides and the guide rollers 702 of the sliding sleeve 7 form a sliding guide pair, which ensures the stable movement of the sliding sleeve 7 along the transverse direction. The sliding grooves 502 are formed on the two side walls of the guide cavities 501, and the groove body is long strip-shaped, which is matched with the rolling track of the guide roller 702, and limits the rotation of the sliding sleeve 7, and only allows it to move along the transverse direction (the width direction of the coated base paper 6).

[0043] In combination Figure 1 , Figure 6 The coated base paper 6 is conducted along the supporting surface of the guide plate 2, and the bottom surface is in abutment with the rough surface of the friction roller 3, and is transmitted forward by the rotation of the friction roller 3, and is adjusted by the transverse displacement of the friction roller 3.

[0044] In combination Figure 3 , Figure 4 , Figure 5The sliding sleeve 7 is arranged in the guide cavity 501 in a sliding mode, the inner bearing 701 is fixedly arranged in the inner periphery, the guide roller 702 is fixedly arranged in the outer periphery, the magnetic attraction block 703 is fixedly arranged on the side facing the electromagnetic module 9, and the whole is a composite structure of "inner bearing shaft, outer guide and side magnetic attraction", which is used to connect the friction roller 3 and the power component of the adjusting mechanism 5. The inner bearing 701 is fixedly arranged in the inner periphery of the sliding sleeve 7, the inner ring is in interference fit with the roller shaft 301, and the outer ring is fixedly connected with the sliding sleeve 7, so that the relative rotation between the roller shaft 301 and the sliding sleeve 7 is realized, and it is ensured that the friction roller 3 can freely roll and transmit the coated base paper 6. The guide roller 702 is fixedly arranged in the outer periphery of the sliding sleeve 7 and is in rolling fit with the sliding groove 502 of the guide cavity 501, so that the sliding friction between the sliding sleeve 7 and the guide cavity 501 is converted into rolling friction, the horizontal moving resistance is reduced, and the deviation correction response speed is improved. The magnetic attraction block 703 is fixedly arranged on the side of the sliding sleeve 7 facing the electromagnetic module 9 and is axially aligned with the electromagnetic module 9, and is made of permanent magnetic material and can be magnetically attracted to the electromagnetic module 9 when the electromagnetic module 9 is powered on, so as to drive the sliding sleeve 7 to move towards the electromagnetic module 9.

[0045] In combination with Figure 3 , Figure 4 , Figure 5 , the tension spring 8 is connected between the sliding sleeve 7 and the electromagnetic module 9 and is in a natural elongation state in the initial state. When the electromagnetic module 9 is powered on to attract the sliding sleeve 7, the tension spring 8 is compressed. When the electromagnetic module 9 is powered off, the reset elastic force of the tension spring 8 drives the sliding sleeve 7 to return to the initial position, so as to realize the reset of the friction roller 3. The electromagnetic module 9 is fixedly arranged on the adjusting mechanism 5 and is arranged towards the guide cavity 501 and aligned with the magnetic attraction block 703 of the sliding sleeve 7. The electromagnetic module 9 generates magnetic attraction force when powered on and loses the magnetic attraction force when powered off, so as to provide a power source for the horizontal movement of the sliding sleeve 7. The power-on duration of the electromagnetic module 9 can be preset (for example, 2 seconds).

[0046] In addition, in combination with Figure 1 , the photoelectric probes 401 and the friction rollers 3 are alternately distributed, and the most upstream side photoelectric probe 401 is located upstream of the most upstream side friction roller 3, so as to realize a continuous working mode of "detection first and adjustment later" and ensure that the deviation is found and corrected in time. The distance between the photoelectric probes 401 on the same side and the edge position plate 201 increases in equal difference, so as to ensure that the detection range covers the possible horizontal deviation range of the coated base paper 6 and facilitate the judgment of the deviation degree through the position of the detection probe.

[0047] In combination with Figure 1 , Figure 6 , the rough surface structure improves the friction with the coated base paper 6, and the axial length is greater than the horizontal width of the coated base paper 6, so as to ensure that the acting force is uniformly covered during deviation correction and avoid paper damage caused by local stress.

[0048] In combination with Figure 2 , Figure 3 , Figure 4 , Figure 5The guide roller 702 of the sliding sleeve 7 is matched with the sliding groove 502 of the guide cavity 501, and the limiting of the edge position through groove 202 to the roller shaft 301 ensures that the transverse movement of the friction roller 3 is stable, without jamming and deviation. The setting of the tension spring 8 realizes the automatic reset of the friction roller 3 after the electromagnetic module 9 is powered off, and ensures the stable reference position of the equipment in the non-correction state.

[0049] Embodiment two, the application designs a control method of a coated paper transmission positioning detection device, and the specific content is as follows:

[0050] (I) Control logic basis

[0051] The control method is based on the closed-loop logic of "detection-judgment-correction-verification", the shielding signal of the photoelectric probe 401 is used to judge whether the transverse position of the coated base paper 6 is compliant, the transverse movement of the friction roller 3 is controlled by the electromagnetic module 9 to realize correction, and the downstream photoelectric probe 401 is used to verify the correction effect, so that the coated base paper 6 always conducts along the preset transverse range.

[0052] (II) Specific control steps

[0053] Initial transmission stage: the coated base paper 6 enters above the guide plate 2 and is in rolling 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 to transmit forward along the transmission direction by rotating itself, at this time, all electromagnetic modules 9 are in a powered-off state, and the friction roller 3 maintains the reference position under the action of the tension spring 8.

[0054] Detection starting stage: all photoelectric probes 401 are started synchronously, and continuously detect the edge area of the coated base paper 6 above the friction roller 3 vertically downward, to detect whether there is a signal that the coated base paper 6 shields the detection light path of the photoelectric probe 401.

[0055] Signal judgment and correction execution:

[0056] Case one: if neither of the two photoelectric probes 401 in the same group of the two detection frames 4 detects the shielding signal of the coated base paper 6, it indicates that the transverse position of the coated base paper 6 in the transmission area corresponding to the photoelectric probe 401 is compliant and has no deviation, 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 normally transmitted.

[0057] Case two, if any one of the photoelectric probe 401 in the group of photoelectric probe 401 aligned with the position of the two detection frame 4 detects the shielding signal of the laminated base paper 6, it means that there is a lateral deviation of the laminated base paper 6 in the conduction area corresponding to the group of photoelectric probe 401 (deviation to the side where the shielding signal is detected), at this time, the photoelectric probe 401 adjacent to the downstream friction roller 3 aligned with the electromagnetic module 9 is powered once (the power-on time is preset to 2 seconds). The electromagnetic module 9 generates a magnetic attraction force after being powered on, which attracts the magnetic attraction block 703 of the sliding sleeve 7, drives the sliding sleeve 7 to move laterally along the guide cavity 501 to the direction of the electromagnetic module 9, and the sliding sleeve 7 drives the roller shaft 301 to move laterally synchronously through the inner bearing 701, and then drives the friction roller 3 to move laterally. When the friction roller 3 moves laterally, the rough surface of the friction roller 3 generates a lateral friction force with the bottom surface of the laminated base paper 6, which pushes the laminated base paper 6 to adjust the position in the compliance direction.

[0058] Deviation correction verification and feedback:

[0059] After single deviation correction (the electromagnetic module 9 is powered off, and the friction roller 3 is reset under the action of the tension spring 8), the subsequent photoelectric probe 401 (if any) downstream of the deviation correction area detects the lateral position of the laminated base paper 6 again.

[0060] If the downstream subsequent photoelectric probe 401 feedbacks no shielding signal, it is determined that the deviation correction is effective, the laminated base paper 6 returns to the normal transmission state, and the subsequent laminated base paper 6 continuously passes through the photoelectric probe 401 for monitoring.

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

[0062] Deviation correction force adaptation rule: taking the conduction direction of the laminated base paper 6 as the reference, the closer the photoelectric probe 401 detecting the lateral position of the laminated base paper 6 not meeting the requirements to the upstream position, the earlier the deviation occurs, and the more times the subsequent deviation correction can be used, therefore, the friction force between the friction roller 3 and the laminated base paper 6 is set to be relatively small, and the degree of lateral deviation correction of the laminated base paper 6 driven by a single friction roller 3 is controlled in a small range, so as to avoid damage such as wrinkles and micro-tears on the edge of the laminated base paper 6 caused by large stroke and large force deviation correction.

[0063] Example: If none of the photoelectric probe 401 in the group of photoelectric probe 401 aligned with the position of the two detection frame 4 on the two detection frames 4 detects the shielding signal, and only any one of the photoelectric probe 401 in the group of photoelectric probe 401 aligned with the position of the most downstream detection frame 4 detects the shielding signal, it means that the lateral deviation of the laminated base paper 6 occurs at the end of the conduction, and the deviation degree is slight, which can be basically eliminated by one deviation correction operation without repeated deviation correction.

[0064] (Three) control core advantage

[0065] The application can accurately locate the deviation position through the detection of the "alignment photoelectric probe 401 group", and the photoelectric probe 401 with equidifferent value distribution can quantify the deviation degree and adapt to different correction forces. In the application, when deviation occurs in the upstream of the coated base paper, the design of small force and multiple correction avoids paper damage and improves transmission stability. Through the closed-loop control of detection-correction-verification, the application ensures that the deviation is corrected in time and the correction effect can be verified, avoiding the continuous deviation affecting the subsequent coating process.

[0066] The above merely describes the preferred embodiments of the application and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

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; 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). In the pair of photoelectric probes (401) with the two sets of detector 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), and the spacing between the downstream pair of photoelectric probes (401) is the same as the transverse width of the coated base paper (6). 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; 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. A control method for a coated paper transport and positioning detection device, characterized in that, The coated paper transfer and positioning detection device according to any one of claims 1 to 4 includes 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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