Multi-paper detection mechanism

Abstract

The utility model relates to the technical field of paper detection, in particular to a multi-paper detection mechanism. The conveying assembly is responsible for paper conveying, the detection assembly conveying belt on the upper portion can detect the thickness change of the paper without affecting conveying, and continuity and stability are guaranteed. An eccentric wheel is matched with an infrared sensor, the thickness change of paper can be accurately captured, the situation that multiple pieces of paper are adhered and other abnormalities are not found is prevented, and the production risk is reduced. Meanwhile, the overall structure is simple and reasonable, manufacturing, installation and maintenance are easy, the equipment cost and complexity are reduced, the durability of the equipment is improved, the service life of the equipment is prolonged, and efficient production or treatment flow development is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper detection technical field, especially a kind of multi-paper detection mechanism. BACKGROUND

[0002] In modern industrial production, the automatic processing of paper becomes more and more important, however, the traditional paper processing equipment often has difficulty in accurately distinguishing when processing multiple overlapping papers, resulting in errors in the processing process, such as inaccurate cutting, paper damage or low production efficiency, etc. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art.

[0004] The utility model provides a kind of multi-paper detection mechanism, including conveying assembly, detection component and rack, the conveying assembly is located on the rack, and the conveying assembly is used to convey paper;The detection component includes conveying belt, eccentric wheel and infrared sensor, the conveying belt is located above the conveying assembly, and the conveying belt is rotatably arranged on the rack;The eccentric wheel is located above the lower side belt body of the conveying belt, and the eccentric wheel is rotatably arranged on the rack;When the thickness of paper changes, the lower side belt body is lifted to make the eccentric wheel rotate under the action of thrust force, and the infrared sensor is used to detect the rotation signal of the eccentric wheel.

[0005] The utility model has the advantages that: the conveying assembly is responsible for paper conveying, the conveying belt in the detection component is located above it, which realizes paper thickness change detection and does not interfere with normal paper conveying, ensuring the continuity and stability of conveying, which is beneficial to efficient operation of production or processing process;When the thickness of paper changes, the lower side belt body of the conveying belt can be lifted to make the eccentric wheel rotate, and the infrared sensor accurately detects the rotation signal of the eccentric wheel, so as to accurately capture the change of paper thickness, effectively prevent the abnormal situation of multiple papers sticking from affecting subsequent processes, and reduce production risk;The overall structure is simple and reasonable, easy to manufacture, install and maintain, reduces equipment cost and complexity, and improves the durability and service life of the equipment.

[0006] Further, the detection assembly further comprises an axle, the axle is arranged outside the eccentric wheel center, the axle passes through the eccentric wheel, the axle is rotationally connected with the eccentric wheel, the eccentric wheel is provided with a detection groove, and the detection groove is located on the side of the eccentric wheel close to the axle. After the eccentric wheel completes a rotation caused by the change of the thickness of the paper, the special gravity distribution structure helps the eccentric wheel to automatically reset more stably and smoothly by relying on its own gravity; because the gravity distribution is far away from the side where the detection groove is located, abnormal situations such as jamming will not occur during the resetting process due to unreasonable gravity pulling and other factors, thereby ensuring that the entire detection process can be cyclically and stably performed; in the resetting state of the eccentric wheel, the infrared sensor faces the detection groove, and the infrared sensor is used to detect the displacement signal of the detection groove; when the change of the thickness of the paper causes the eccentric wheel to rotate, the position of the detection groove changes accordingly, and this design can make the infrared sensor more sensitively capture the displacement change of the eccentric wheel, thereby realizing high-precision detection of the change of the thickness of the paper and effectively avoiding production problems caused by inaccurate detection.

[0007] Further, the multi-paper detection mechanism further comprises a support strip and a wheel frame, the support strip is transversely inserted between the upper and lower belt bodies of the conveying belt along a conveying direction perpendicular to the conveying belt; both ends of the support strip are respectively extended and arranged on the frame; one end of the wheel frame is rotationally and lockably connected with the support strip, and the wheel frame is located between the upper and lower belt bodies of the conveying belt; the axle is rotationally arranged on the wheel frame, and the wheel frame is used to change the mounting height of the eccentric wheel. The support strip is transversely inserted between the upper and lower belt bodies of the conveying belt and connected with the frame, thereby stably supporting the conveying belt and ensuring the stability of the conveying process; the wheel frame is rotationally and lockably connected with the support strip, which on the one hand facilitates the adjustment of the distance between the eccentric wheel and the conveying belt and the mounting height of the eccentric wheel, can adapt to the detection requirements of different paper thicknesses, and improves the universality of the detection mechanism; on the other hand, after being adjusted to a suitable position, the wheel frame can be locked, thereby ensuring the stability of the detection work; the axle is rotationally arranged on the wheel frame, and the wheel frame serves as a mounting carrier to ensure that the eccentric wheel can normally rotate around the axle to respond to the change of the thickness of the paper; the overall structural design enables the detection assembly to be flexibly adjusted according to actual paper specifications and conveying conditions, better adapts to different detection requirements, improves the adaptability, and reduces the equipment cost and complexity.

[0008] Further, the multi-paper detection mechanism further comprises a locking block, a fixed block and a compression spring a, the locking block is fixedly installed on the support strip, and the locking block is located beside the wheel frame; the fixed block is fixedly installed on the locking block, and a groove is formed in the fixed block, and the groove is located on the side of the support strip close to the eccentric wheel; one end of the compression spring a is located in the groove, and the compression spring a provides a downward pressure to the wheel frame, so that the eccentric wheel is pressed to the lowest position close to the lower belt body of the conveying belt. By arranging the locking block and the fixed block, a stable installation foundation is provided for the multi-paper detection mechanism, the component connection is strengthened, and the operation stability is improved. The design of the groove provides a suitable position for the compression spring a, ensures that the eccentric wheel is close to the lower belt body of the conveying belt, and can accurately detect the thickness of the paper; when the thickness of the paper changes, the wheel frame can swing upward to avoid damaging the paper and protect the integrity of the paper. The overall design makes the mechanism compact in structure and clear in function, improves the accuracy of paper detection and the protection ability of the paper, and ensures the smooth progress of the paper conveying and detection process.

[0009] Further, the multi-paper detection mechanism further comprises a limiting screw, a screw hole is further formed in the fixed block, and the screw hole leads to the wheel frame; the limiting screw is externally threaded with the screw hole, and the tail of the limiting screw abuts against the wheel frame; the end of the limiting screw abutting against the wheel frame is located on the side of the support strip away from the compression spring a. By arranging the screw hole in the fixed block and cooperating with the limiting screw, a structural foundation is provided for the limiting adjustment of the wheel frame and the eccentric wheel. The specific position layout does not interfere with the work of the compression spring a, but can apply force to the wheel frame from the other side, cooperates with the compression spring a to adjust the positions of the wheel frame and the eccentric wheel. The limiting screw can adjust the pressing height of the eccentric wheel, that is, adjust the distance between the eccentric wheel and the conveying belt, so as to adapt to the detection requirements of different types and quantities of paper, improve the universality and adaptability of the mechanism, ensure the accuracy and efficiency of paper detection, and provide a reliable solution for diversified paper detection scenarios.

[0010] Further, the multi-paper detection mechanism further comprises a compression spring b, the compression spring b is sleeved on the limiting screw, and the compression spring b is used for abutting against the screw head of the limiting screw. The compression spring b is sleeved on the limiting screw and abuts against the screw head, effectively increasing the friction between the limiting screw and the screw hole, so that the limiting screw is not easy to loosen during use, and the stability and reliability of the multi-paper detection mechanism are ensured.

[0011] Further, the conveying assembly further comprises a conveying belt, a rotating shaft a and a rotating shaft b; the rotating shaft a and the rotating shaft b are rotationally arranged on the frame; the conveying belt is arranged around the rotating shaft a and the rotating shaft b and is driven to rotate by the rotating shaft a; the conveying belt is used for conveying paper. The rotating shaft a and the rotating shaft b cooperate to provide stable support for the conveying belt, ensure smooth paper conveying, facilitate paper alignment, improve conveying efficiency and quality, reduce paper misalignment and other problems, and improve overall working performance.

[0012] Further, the detection assembly further comprises a rotating shaft c and a rotating shaft d; the rotating shaft c and the rotating shaft d are rotationally mounted on the frame; the conveying belt is arranged around the rotating shaft c and the rotating shaft d and is driven to rotate by the rotating shaft c; the conveying belt is parallel to the conveying belt and is used for assisting paper conveying. The rotating shaft c and the rotating shaft d in the detection assembly cooperate to form a stable double-shaft conveying system, which not only enhances the support for the conveying belt, but also allows the conveying belt to be parallel to the conveying belt and have consistent conveying direction and speed. This design allows the conveying belt and the conveying belt to jointly act on paper conveying, improves conveying efficiency, and the conveying belt is used for assisting paper conveying, which helps to keep paper flat and aligned during conveying.

[0013] Further, the infrared sensor is arranged on the side of the wheel carrier away from the eccentric wheel. The infrared sensor is arranged at a specific position to detect displacement signals and can accurately monitor the detection groove to provide accurate data support for equipment operation.

[0014] Further, the multi-paper detection mechanism further comprises a wheel, which is mounted on the locking block; the wheel is located between the upper belt body and the lower belt body of the conveying belt and rotationally connects the conveying belt. This layout can ensure stable operation of the conveying belt, reduce slippage of the conveying belt, and improve transmission efficiency.

[0015] The utility model provides a kind of multiple paper detection mechanism, at least have following beneficial effects: the conveying component is responsible for paper conveying, the conveying belt in the detection component is located above it, both realize paper thickness change detection, again do not interfere with paper normal conveying, guarantee the coherence and stability of conveying, benefit production or process efficient operation;When paper thickness changes, the ingenious cooperation of the eccentric wheel and the infrared sensor can lift the lower side belt body of the conveying belt and make the eccentric wheel rotate, the infrared sensor accurately detects the eccentric wheel rotation signal, so as to accurately capture paper thickness change, effectively prevent multiple adhesion and other paper quantity abnormal conditions are not found and affect subsequent process, reduce production risk;Whole structure is simple and reasonable, easy to manufacture, install and maintain, reduce equipment cost and complexity, improve the durability and service life of equipment.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the utility model will become apparent and more readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 It is partial perspective view of a kind of multiple paper detection mechanism of the utility model;

[0019] Figure 2 It is overall structure schematic view of a kind of multiple paper detection mechanism of the utility model;

[0020] Figure 3 It is partial structure schematic view of a kind of multiple paper detection mechanism of the utility model;

[0021] Figure 4 It is another partial structure schematic view of a kind of multiple paper detection mechanism of the utility model.

[0022] In the drawings, 1-conveying component;11-compression spring b;12-conveying belt;13-rotary shaft a;14-rotary shaft b;15-wheel;

[0023] 2-detection component;21-conveying belt;22-eccentric wheel;23-infrared sensor;24-wheel shaft;25-detection groove;26-rotary shaft c;27-rotary shaft d;

[0024] 3-rack;4-supporting strip;5-wheel frame;6-locking block;7-fixed block;8-compression spring a;9-limiting screw;71-groove;72-screw hole. DETAILED DESCRIPTION

[0025] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout.

[0026] As shown in the drawings, an embodiment of the present application is shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. Figures 1-4 A plurality of paper detection mechanisms, comprising a conveying assembly 1, a detection assembly 2 and a rack 3, the conveying assembly 1 is arranged on the rack 3,

[0027] The conveying assembly 1 is used for conveying paper;

[0028] The detection assembly 2 comprises a conveying belt 21, an eccentric wheel 22 and an infrared sensor 23, the conveying belt 21 is located above the conveying assembly 1, the conveying belt 21 is rotatably arranged on the rack 3;

[0029] The conveying assembly 1 is responsible for the conveying work of the paper, the conveying belt 21 in the detection assembly 2 is located above the conveying assembly 1, which realizes the detection of the change of the thickness of the paper, and does not interfere with the normal conveying process of the paper on the conveying assembly 1, which guarantees the continuity and stability of the paper conveying, and is beneficial to the efficient operation of the whole production or processing process;

[0030] The eccentric wheel 22 is located above the lower belt body of the conveying belt 21, and the eccentric wheel 22 is rotatably arranged on the rack 3;

[0031] When the thickness of the paper changes, the lower belt body is lifted to make the eccentric wheel 22 rotate under the action of the pushing force, and the infrared sensor 23 is used for detecting the rotation signal of the eccentric wheel 22. The eccentric wheel 22 can be automatically reset by its own gravity, and by setting the matching structure of the eccentric wheel 22 and the infrared sensor 23, when the thickness of the paper changes, the lower belt body of the conveying belt 21 is lifted, and the eccentric wheel 22 is pushed to rotate. At present, the paper is mainly detected by an ultrasonic sensor on the existing production line, however, when the paper is stacked, the ultrasonic sensor cannot accurately identify, therefore, in the present scheme, the infrared sensor 22 is used as an alternative scheme; the infrared sensor 23 can detect the rotation signal of the eccentric wheel 22, so as to accurately capture the change of the thickness of the paper, realize more accurate detection of the plurality of papers, and effectively avoid the problems in the subsequent process caused by the abnormal number of papers (such as multiple adhesion) and the folded paper not being found;

[0032] The conveying assembly 1 is responsible for paper conveying, and the conveying belt 21 in the detection assembly 2 is located above it, which realizes paper thickness change detection and does not interfere with normal paper conveying, guarantees the continuity and stability of conveying, and is beneficial to efficient operation of the production or processing process; through the ingenious cooperation of the eccentric wheel 22 and the infrared sensor 23, when the paper thickness changes, the lower side of the conveying belt 21 can be lifted to make the eccentric wheel 22 rotate, and the infrared sensor 23 accurately detects the rotation signal of the eccentric wheel 22, so as to accurately capture the paper thickness change, effectively prevent the paper quantity abnormality such as multiple adhesion from affecting the subsequent process, and reduce the production risk; the overall structure is simple and reasonable, easy to manufacture, install and maintain, reduces the equipment cost and complexity, and improves the durability and service life of the equipment.

[0033] The detection assembly 2 further comprises an axle 24, the axle 24 is arranged outside the center of the eccentric wheel 22, the axle 24 passes through the eccentric wheel 22, the axle 24 is rotationally connected with the eccentric wheel 22, a detection groove 25 is formed in the eccentric wheel 22, and the detection groove 25 is located on the side of the eccentric wheel 22 close to the axle 24; through such a structure design, the gravity of the eccentric wheel 22 is distributed on the side far away from the detection groove 25, and after the eccentric wheel 22 completes a rotation caused by the paper thickness change, the special gravity distribution structure helps it to be more stable and smoother and to be automatically reset by its own gravity; because the gravity is distributed far away from the side where the detection groove 25 is located, abnormal conditions such as jamming will not occur in the resetting process due to unreasonable gravity pulling and other factors, and the whole detection process can be circularly and stably performed; in the resetting state of the eccentric wheel 22, the infrared sensor 23 faces the detection groove 25, and the infrared sensor 23 is used for detecting the displacement signal of the detection groove 25; when the paper thickness changes, the eccentric wheel 22 rotates, and the position of the detection groove 25 changes, and such a design can make the infrared sensor 23 more sensitively capture the displacement change of the eccentric wheel 22, so as to realize high-precision detection of the paper thickness change and effectively avoid production problems caused by inaccurate detection.

[0034] The multi-paper detection mechanism further comprises a support strip 4 and a wheel frame 5, the support strip 4 is transversely inserted between the upper and lower belt bodies of the conveying belt 21 in a direction perpendicular to the conveying direction of the conveying belt 21, and the two ends of the support strip 4 are respectively extended and arranged on the rack 3; one end of the wheel frame 5 is rotatably connected to the support strip 4 in a lockable manner, and the wheel frame 5 is located between the upper and lower belt bodies of the conveying belt 21; the rotatable and lockable connection between the wheel frame 5 and the support strip 4 can conveniently adjust the distance between the eccentric wheel 22 and the conveying belt 21 to adapt to the detection of different paper thicknesses, and is locked after being adjusted to a suitable position; the wheel shaft 24 is rotatably arranged on the wheel frame 5, the wheel frame 5 is used to change the installation height of the eccentric wheel 22, the wheel frame 5 serves as an installation carrier of the wheel shaft 24, and ensures that the eccentric wheel 22 can normally rotate around the wheel shaft 24 to respond to the change of paper thickness; and the wheel frame 5 has the function of changing the installation height of the eccentric wheel 22, which makes the entire detection assembly 2 be able to flexibly adjust the height position of the eccentric wheel 22 according to the actual paper specifications, conveying conditions and the like, better adapt to different paper detection requirements, and improve the universality and adaptability of the detection mechanism.

[0035] The transverse insertion of the support strip 4 between the upper and lower belt bodies of the conveying belt 21 and the connection of the support strip 4 to the rack 3 provide stable support for the conveying belt 21 and ensure the stability of the conveying process; the rotatable and lockable connection of the wheel frame 5 to the support strip 4 facilitates the adjustment of the distance between the eccentric wheel 22 and the conveying belt 21 and the installation height of the eccentric wheel 22, can adapt to the detection requirements of different paper thicknesses, and improves the universality of the detection mechanism; on the other hand, the wheel frame 5 can be locked after being adjusted to a suitable position, which ensures the stability of the detection work; the wheel shaft 24 is rotatably arranged on the wheel frame 5, and the wheel frame 5 serves as an installation carrier to ensure that the eccentric wheel 22 can normally rotate around the wheel shaft 24 to respond to the change of paper thickness; the overall structural design makes the detection assembly 2 be able to flexibly adjust according to the actual paper specifications and conveying conditions, better adapt to different detection requirements, improve the adaptability, and reduce the equipment cost and complexity.

[0036] The multi-paper detection mechanism further comprises a locking block 6, a fixed block 7 and a compression spring a8, the locking block 6 is fixedly installed on the support strip 4, and the locking block 6 is located beside the wheel frame 5; the locking block 6 is fixedly installed on the support strip 4 and located beside the wheel frame 5, which plays a role in positioning and auxiliary supporting related structures, and can provide a stable installation basis for other components that cooperate with it subsequently.

[0037] The fixed block 7 is fixedly installed on the locking block 6,

[0038] The fixing block 7 is fixed on the locking block 6, which further expands the integrity and relevance of the structure, can extend the function on the basis structure constructed by the locking block 6, and facilitates the subsequent setting of other functional structures (such as recess 71) on the fixing block 7, so that the structure level of the whole multi-paper detection mechanism is more distinct and compact, the connection relationship between the components is strengthened, the structure is not easy to loosen during cooperative work, and the stability and reliability of the mechanism operation are improved.

[0039] The fixing block 7 is fixed on the locking block 6, which further expands the integrity and relevance of the structure, can extend the function on the basis structure constructed by the locking block 6, and facilitates the subsequent setting of other functional structures (such as recess 71) on the fixing block 7, so that the structure level of the whole multi-paper detection mechanism is more distinct and compact, the connection relationship between the components is strengthened, the structure is not easy to loosen during cooperative work, and the stability and reliability of the mechanism operation are improved.

[0040] The recess 71 is located on the side of the supporting strip 4 close to the eccentric wheel 22.

[0041] One end of the compression spring a8 is located in the recess 71, the compression spring a8 provides a downward pressure to the wheel frame 5, so that the eccentric wheel 22 is pressed to the lowest position close to the lower side of the conveying belt 21; the wheel frame 5 is supported by the compression spring a8, and when the thickness of the paper changes, the conveying belt 21 is lifted, the eccentric wheel 22 drives the wheel frame 5 to swing upward under the pushing force, and the wheel frame 5 can swing upward, so that the paper is not forced to be squeezed due to the change of the thickness of the paper, the integrity of the paper is effectively protected, and the protection ability of the paper during the whole paper conveying and detection process is improved.

[0042] The locking block 6 and the fixing block 7 are provided, which provides a stable installation basis for the multi-paper detection mechanism, strengthens the connection of the components, and improves the running stability; the design of the recess 71 provides a suitable position for the compression spring a8, ensures that the eccentric wheel 22 is close to the lower side of the conveying belt 21, and can accurately detect the thickness of the paper; when the thickness of the paper changes, the wheel frame 5 can swing upward to avoid damaging the paper and protect the integrity of the paper; the overall design makes the mechanism structure compact and the function clear, improves the accuracy of paper detection and the protection ability of the paper, and ensures the smooth progress of the paper conveying and detection process.

[0043] The multi-paper detection mechanism also comprises a limiting screw 9, and a screw hole 72 is also formed in the fixed block 7 and leads to the wheel frame 5; the limiting screw 9 is introduced into the screw hole 72 in the fixed block 7 and leads to the wheel frame 5, thereby providing a structural basis for subsequent limiting adjustment of the wheel frame 5 and the eccentric wheel 22; the limiting screw 9 is externally screwed into the screw hole 72, and the tail of the limiting screw 9 abuts against the wheel frame 5; one end of the limiting screw 9, which abuts against the wheel frame 5, is located on the side of the support strip 4 away from the compression spring a8; the limiting screw 9 provides downward pressure to the wheel frame 5 on the side of the support strip 4 away from the compression spring a8, and is used for limiting adjustment of the pressing height of the eccentric wheel 22, thereby limiting adjustment of the distance between the eccentric wheel 22 and the conveying belt 21, so as to adapt to the detection requirements of different types or quantities of paper; the specific position layout of the limiting screw 9 and the screw hole 72 helps to apply force to the wheel frame 5 from the other side without interfering with the normal work of the compression spring a8, thereby achieving a synergistic effect with the compression spring a8 to jointly adjust the position state of the wheel frame 5 and the eccentric wheel 22.

[0044] By providing the screw hole 72 on the fixed block 7 and cooperating with the limiting screw 9, a structural basis is provided for limiting adjustment of the wheel frame 5 and the eccentric wheel 22, and the specific position layout does not interfere with the work of the compression spring a8, but can apply force to the wheel frame 5 from the other side to adjust the position of the wheel frame 5 and the eccentric wheel 22 in cooperation with the compression spring a8; the limiting screw 9 can adjust the pressing height of the eccentric wheel 22, i.e., the distance between the eccentric wheel 22 and the conveying belt 21, so as to adapt to the detection requirements of different types and quantities of paper, improve the universality and adaptability of the mechanism, and ensure the accuracy and efficiency of paper detection, thereby providing a reliable solution for diversified paper detection scenarios.

[0045] The multi-paper detection mechanism also comprises a compression spring b11, which is sleeved on the limiting screw 9 and used for abutting against the screw head of the limiting screw 9. The compression spring b11 is sleeved on the limiting screw 9 and abuts against the screw head, thereby effectively increasing the friction between the limiting screw 9 and the screw hole 72, which makes the limiting screw 9 not easy to loosen during use, thereby ensuring the stability and reliability of the multi-paper detection mechanism.

[0046] The conveying assembly 1 further comprises a conveying belt 12, a rotating shaft a 13 and a rotating shaft b 14; the rotating shaft a 13 and the rotating shaft b 14 are rotatably arranged on the frame 3; the conveying belt 12 is arranged around the rotating shaft a 13 and the rotating shaft b 14 and is driven to rotate by the rotating shaft a 13; the conveying belt 12 is used for conveying paper. The rotating shaft a 13 and the rotating shaft b 14 cooperate to provide stable support for the conveying belt 12, ensuring smooth paper conveying, facilitating neat paper arrangement, improving conveying efficiency and quality, reducing paper misalignment and other problems, and improving overall working performance.

[0047] The detection assembly 2 further comprises a rotating shaft c 26 and a rotating shaft d 27; the rotating shaft c 26 and the rotating shaft d 27 are rotatably arranged on the frame 3; the conveying belt 21 is arranged around the rotating shaft c 26 and the rotating shaft d 27 and is driven to rotate by the rotating shaft c 26; the conveying belt 21 is parallel to the conveying belt 12, and the conveying belt 21 is used for assisting paper conveying. The rotating shaft c 26 and the rotating shaft d 27 in the detection assembly 2 cooperate to form a stable double-shaft conveying system, which not only enhances the support for the conveying belt 21, but also ensures that the conveying belt 21 is parallel to the conveying belt 12 and has consistent conveying direction and speed. This design allows the conveying belt 21 and the conveying belt 12 to jointly act on paper conveying, thereby improving conveying efficiency. The conveying belt 21 is used for assisting paper conveying, which helps to maintain the flatness and neatness of paper during the conveying process.

[0048] The infrared sensor 23 is arranged on the side of the wheel frame 5 away from the eccentric wheel 22, and is used for detecting the displacement signal of the detection groove 25. Once the eccentric wheel 22 rotates, the infrared sensor 23 can quickly detect the rotation signal, thereby improving the response speed of detection. The eccentric wheel 22 includes a reset state and a deflection state. When the eccentric wheel 22 is in the reset state, the infrared sensor 23 is aligned with the detection groove 25 on the eccentric wheel 22. When the eccentric wheel 22 starts to rotate and enters the deflection state, the features on the surface of the eccentric wheel 22 change, and the infrared sensor 23 is no longer aligned with the groove 71 on the eccentric wheel 22, resulting in a decrease in the intensity of the reflected light received by the infrared sensor 23. Through continuous monitoring and comparison of the intensity of the reflected light, the infrared sensor 23 can determine whether the eccentric wheel 22 rotates, and sends a shutdown processing signal to the equipment controller. The infrared sensor 23 is arranged at a specific position to detect the displacement signal, which can accurately monitor the detection groove 25 and provide accurate data support for equipment operation.

[0049] The multi-paper detection mechanism further comprises a wheel 15 mounted on the locking block 6; the wheel 15 is located between the upper belt and the lower belt of the conveying belt 21 and is rotationally connected to the conveying belt 21. This arrangement can ensure stable operation of the conveying belt 21, reduce the slippage phenomenon of the conveying belt 21 and improve the transmission efficiency.

[0050] The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0051] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0052] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting and connecting should be understood in a broad sense, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0053] The embodiments of the present application will be described below in combination with the drawings.

[0054] The preferred embodiments of the present application are specifically described above, but the creation of the present application is not limited to the embodiments described above, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application, and these equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A multiple sheet detection mechanism, characterized by: The paper sheet thickness detecting device comprises a conveying assembly (1), a detecting assembly (2) and a frame (3), the conveying assembly (1) is arranged on the frame (3), and the conveying assembly (1) is used for conveying paper sheets; The detecting assembly (2) comprises a conveying belt (21), an eccentric wheel (22) and an infrared sensor (23), the conveying belt (21) is arranged above the conveying assembly (1), and the conveying belt (21) is rotatably arranged on the frame (3); The eccentric wheel (22) is arranged above the lower belt body of the conveying belt (21), and the eccentric wheel (22) is rotatably arranged on the frame (3); When the thickness of the paper sheet changes, the lower belt body is lifted to make the eccentric wheel (22) rotate under the action of the lifting force, and the infrared sensor (23) is used for detecting the rotation signal of the eccentric wheel (22).

2. A multiple sheet detection mechanism as in claim 1, wherein: The detecting assembly (2) further comprises an axle (24), the axle (24) is arranged outside the center of the eccentric wheel (22), the axle (24) penetrates through the eccentric wheel (22), the axle (24) is rotatably connected with the eccentric wheel (22), a detecting groove (25) is arranged on the eccentric wheel (22), and the detecting groove (25) is arranged on the side of the eccentric wheel (22) close to the axle (24).

3. A multiple sheet detection mechanism as in claim 2, wherein: The multiple paper sheet detecting mechanism further comprises a supporting strip (4) and a wheel frame (5), the supporting strip (4) is transversely arranged between the upper belt body and the lower belt body of the conveying belt (21) along the conveying direction perpendicular to the conveying belt (21); the two ends of the supporting strip (4) are respectively arranged on the frame (3); one end of the wheel frame (5) is rotatably connected with the supporting strip (4) in a lockable mode, and the wheel frame (5) is arranged between the upper belt body and the lower belt body of the conveying belt (21); the axle (24) is rotatably arranged on the wheel frame (5), and the wheel frame (5) is used for changing the installation height of the eccentric wheel (22).

4. A multiple sheet detection mechanism as in claim 3, wherein: The multiple paper sheet detecting mechanism further comprises a locking block (6), a fixing block (7) and a compression spring a (8), the locking block (6) is fixedly arranged on the supporting strip (4), and the locking block (6) is arranged beside the wheel frame (5); the fixing block (7) is fixedly arranged on the locking block (6), a recess (71) is arranged on the fixing block (7), the recess (71) is arranged on the side of the supporting strip (4) close to the eccentric wheel (22); one end of the compression spring a (8) is arranged in the recess (71), the compression spring a (8) provides a pressing force to the wheel frame (5), the eccentric wheel (22) is pressed to the lowest position, and the eccentric wheel (22) is close to the lower belt body of the conveying belt (21).

5. A multiple sheet detection mechanism as in claim 4, wherein: The multiple paper sheet detecting mechanism further comprises a limiting screw (9), a screw hole (72) is further arranged on the fixing block (7), and the screw hole (72) leads to the wheel frame (5); the limiting screw (9) is externally screwed with the screw hole (72), and the tail of the limiting screw (9) abuts against the wheel frame (5). The end of the limiting screw (9) abutting against the wheel frame (5) is located on the side of the supporting strip (4) away from the compression spring a (8).

6. A multiple sheet detection mechanism as in claim 5, wherein: The multi-paper detection mechanism further comprises a compression spring b (11) sleeved on the limiting screw (9), and the compression spring b (11) is used for pressing the screw head of the limiting screw (9).

7. A multiple sheet detection mechanism as in claim 1, wherein: The conveying assembly (1) further comprises a conveying belt (12), a rotating shaft a (13) and a rotating shaft b (14). The rotating shaft a (13) and the rotating shaft b (14) are rotationally arranged on the rack (3). The conveying belt (12) is arranged around the rotating shaft a (13) and the rotating shaft b (14) and is driven to rotate by the rotating shaft a (13). The conveying belt (12) is used for conveying paper.

8. A multiple sheet detection mechanism as in claim 7, wherein: The detection assembly (2) further comprises a rotating shaft c (26) and a rotating shaft d (27). The rotating shaft c (26) and the rotating shaft d (27) are rotationally arranged on the rack (3). The conveying belt (21) is arranged around the rotating shaft c (26) and the rotating shaft d (27) and is driven to rotate by the rotating shaft c (26). The conveying belt (21) is parallel to the conveying belt (12), and the conveying belt (21) is used for assisting paper conveying.

9. A multiple sheet detection mechanism as in claim 3, wherein: The infrared sensor (23) is arranged on the side of the wheel frame (5) away from the eccentric wheel (22).

10. A multiple sheet detection mechanism as in claim 4, wherein: The multi-paper detection mechanism further comprises a wheel (15), The wheel (15) is arranged on the locking block (6). The wheel (15) is located between the upper and lower belt bodies of the conveying belt (21) and rotationally connects the conveying belt (21).

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