A paper sheet double detection mechanism

By designing a double-sheet paper detection mechanism that uses detection wheels and fiber optic sensors to determine the number of sheets, the problem of production interruptions caused by manual judgment was solved, and more efficient hangtag production was achieved.

CN224677386UActive Publication Date: 2026-08-25GUANGDONG RONGGONG INTELLIGENT MACHINERY CO LTD
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Patent Information

Application Number
CN202522112912.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-08-25
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

Existing tag production equipment relies on manual judgment to determine whether the paper is double-sheeted, which can lead to missed checks or misjudgments, causing production interruptions and equipment malfunctions, and reducing production efficiency.

Method used

Design a paper double-sheet detection mechanism, including a transmission module, a clamping component and a detection component. The mechanism uses a detection wheel and a detection unit to determine the number of sheets of paper through a fiber optic sensor and issues an alarm in time to prevent double sheets of paper from entering subsequent processes.

Benefits of technology

This effectively prevents production interruptions caused by human error leading to the failure to detect double sheets in a timely manner, reduces the time and effort required for troubleshooting and equipment debugging, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a production technical field of hanging tag, disclose a paper double sheet detection mechanism, including frame, transmission module, compression assembly and detection component, transmission module is located in the frame, compression assembly is located on the frame, the compression assembly is equipped with the compression wheel of movable joint in, detection component is located on the compression assembly, detection component has the detection wheel and detection unit in, detection wheel is located below detection unit, and there is a certain gap between detection wheel and compression wheel. Through setting detection component, detection unit is through the alignment or misalignment condition of detecting the slot on detection wheel and self, accurately judges whether the paper number is correct, when the paper number is greater than the preset number, the paper that is stacked will lift the compression wheel upward and is in contact with detection wheel, the compression wheel drives detection wheel to rotate, until the slot on detection wheel and detection unit are mutually aligned, detection unit sends the paper signal and releases the alarm through the external alarm equipment connected with it.
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Description

Technical Field

[0001] This utility model relates to the field of tag production technology, and in particular to a paper double-sheet detection mechanism. Background Technology

[0002] Hang tags, as important identifiers of goods, carry key information such as brand details, product specifications, and price, and are widely used in various consumer goods sectors, including clothing, footwear, and bags. With the continuous expansion of the consumer market and the increasing brand awareness among consumers, the demand for hang tags is growing daily, placing more stringent requirements on their production efficiency and quality.

[0003] Currently, hang tag production mainly relies on specialized hang tag manufacturing equipment for batch processing. This type of equipment typically integrates multiple functional modules such as feeding, printing, cutting, and sorting, and can progressively process raw paper into finished hang tags that meet the requirements according to preset programs and parameters. In the production process, the feeding mechanism, as the initial stage of the entire process, is responsible for accurately and stably conveying the paper to be processed to subsequent processes. Its performance directly affects the smoothness of the entire production process and the quality stability of the hang tags.

[0004] However, most existing tag production equipment relies on manual labor to place paper onto the conveyor module, and manual judgment is needed to determine whether the paper is double-sheeted. However, this manual judgment is affected by factors such as the worker's skill, experience, and fatigue level, which can easily lead to double-sheeted paper being missed or misjudged. As a result, when the paper enters subsequent printing and cutting processes, the equipment will issue an error signal due to the double-sheeted paper, causing production interruption. Furthermore, a lot of time and effort must be invested in troubleshooting and equipment debugging, which greatly reduces production efficiency.

[0005] Therefore, it is necessary to research a new technical solution to address the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a paper double-sheet detection mechanism.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A paper double-sheet detection mechanism includes a frame, a transmission module, a clamping assembly, and a detection assembly. The transmission module is located within the frame and is used for paper transmission. The clamping assembly is located on the frame and above the transmission module, used to clamp the paper onto the transmission module. The clamping assembly has a movably connected pressure roller that abuts against the paper. The detection assembly is located on the clamping assembly and above the pressure roller. The detection assembly has a detection wheel and a detection unit rotatably connected to the clamping assembly. The detection wheel is located below the detection unit, and there is a certain gap between the detection wheel and the pressure roller. The pressure roller can move closer to or further away from the detection wheel; when the pressure roller approaches and abuts against the detection wheel, it drives the detection wheel to rotate. The detection unit is located on the top of the clamping assembly and is connected to an external alarm device.

[0009] As further explained, the bottom of the detection unit has a hollow structure, and the top of the detection wheel is located inside the hollow structure.

[0010] As further explained, the detection unit is an optical fiber sensor.

[0011] As further explained, the detection wheel has an inwardly extending slot; the slot can be aligned or misaligned with the detection unit.

[0012] As further explained, the detection component includes a first connecting rod; the first connecting rod is disposed in the middle of the clamping component; one end of the first connecting rod is rotatably disposed on one end of the clamping component, and a first locking screw is provided between one end of the first connecting rod and the clamping component; an opening is provided between the other end of the first connecting rod and the other end of the clamping component; an adjusting bolt is provided between the other end of the first connecting rod and the opening, and a support spring is also provided between the other end of the first connecting rod and the opening, and the support spring is disposed on one side of the adjusting bolt.

[0013] As further explained, the adjusting bolt includes an adjusting cap and a threaded rod; the adjusting cap is located above the first connecting rod, and the adjusting cap can be close to or away from the adjusting cap; the threaded rod is fixed below the adjusting cap, and the end of the threaded rod passes through the other end of the first connecting rod and is threadedly connected to the clamping assembly; a through hole is provided between the threaded rod and the other end of the first connecting rod.

[0014] As further explained, the clamping assembly includes a fixed base and a second connecting rod; the fixed base is disposed on the frame; one end of the second connecting rod is rotatably disposed on the fixed base, and a second locking screw is provided between one end of the second connecting rod and the fixed base; the other end of the second connecting rod is rotatably connected to the pressure roller.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0016] By setting up a detection component, the detection unit accurately determines whether the number of sheets is correct by detecting the alignment or misalignment of the slots on the detection wheel with itself. When there are two sheets, the stacked sheets will lift the pressure wheel upwards and make contact with the detection wheel. The transmission module then moves the sheets, causing the pressure wheel to rotate and simultaneously rotating the detection wheel. When the slots on the detection wheel align with the detection unit, the detection unit sends out a multi-sheet signal and releases an alarm through an external alarm device connected to it, so as to promptly remind the staff and prevent the sheets from entering subsequent processes. This effectively prevents production interruptions caused by human error leading to the failure to detect double sheets in time, reduces the time and effort invested in troubleshooting and equipment debugging, and improves production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of a paper double-sheet detection mechanism provided by this utility model;

[0019] Figure 2 A front structural diagram of a paper double-sheet detection mechanism provided by this utility model;

[0020] Figure 3 A schematic diagram of the overall structure of the clamping component and the detection component provided by this utility model.

[0021] The following are the labeling elements in the figure:

[0022] 10. Rack; 11. Transmission module;

[0023] 20. Pressure roller; 21. Fixing base; 22. Second connecting rod; 23. Second locking screw;

[0024] 30. Detection wheel; 301. Groove; 31. Detection unit; 32. First connecting rod; 33. First locking screw; 34. Adjusting bolt; 341. Adjusting cap; 342. Threaded rod; 35. Support spring. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In one embodiment of this utility model, such as Figure 1-3As shown, a paper double-sheet detection mechanism is provided, including a frame 10, a transmission module 11, a clamping assembly, and a detection assembly. The transmission module 11 is disposed within the frame 10 and is used for paper transmission. The clamping assembly is disposed on the frame 10 and above the transmission module 11, and is used to clamp the paper onto the transmission module 11. The clamping assembly has a movably connected pressure roller 20, which abuts against the paper. The detection assembly is disposed on the clamping assembly and above the pressure roller 20. The detection assembly has a detection roller 30 and a detection unit 31 rotatably connected to the clamping assembly. The detection roller 30 is located below the detection unit 31, and there is a certain gap between the detection roller 30 and the pressure roller 20. The pressure roller 20 can move closer to or further away from the detection roller 30. When the pressure roller 20 approaches and abuts against the detection roller 30, the pressure roller 20 drives the detection roller 30 to rotate. The detection unit 31 is located on the top of the clamping assembly and is connected to an external alarm device.

[0031] In this embodiment, the external alarm device can be a buzzer, warning light, or sound and light alarm, etc. The detection unit 31 and the external alarm device are controlled by a control system (such as a PLC). When the control system receives the multiple paper signal from the detection unit 31 and processes it, it will send a control signal to the corresponding output port to drive the external alarm device to work and promptly remind the staff that there is multiple paper.

[0032] By setting up a detection component, the detection unit 31 accurately determines whether the number of sheets is correct by detecting the alignment or misalignment of the slot 301 on the detection wheel 30 with itself. When the number of sheets is double, the stacked sheets will lift the pressure wheel 20 upward and make it contact the detection wheel 30. Subsequently, the transmission module 11 drives the sheets to move, and the pressure wheel 20 rotates accordingly, simultaneously driving the detection wheel 30 to rotate. When the slot 301 on the detection wheel 30 is aligned with the detection unit 31, the detection unit 31 sends out a double sheet signal and releases an alarm through an external alarm device connected to it, so as to promptly remind the staff and prevent the sheets from entering the subsequent process. This effectively prevents production interruptions caused by double sheet problems not being detected in time due to human error, reduces the time and effort invested in troubleshooting and equipment debugging, and improves production efficiency.

[0033] Preferably, the bottom of the detection unit 31 is hollow, and the top of the detection wheel 30 is located inside the hollow structure. The detection unit 31 is a fiber optic sensor. By setting the bottom of the detection unit 31 to be hollow, and the top of the detection wheel 30 to be located inside the hollow structure, the relative position between the detection unit 31 and the detection wheel 30 is more accurate and stable. During the detection process, it can more accurately capture the alignment or misalignment of the slot 301 on the detection wheel 30 and the detection unit 31, thereby improving the accuracy of paper quantity judgment, further reducing production problems caused by inaccurate detection, and ensuring smooth production.

[0034] Preferably, the detection wheel 30 has an inwardly extending slot 301. The slot 301 can be aligned or misaligned with the detection unit 31. By providing the slot 301 on the detection wheel 30, and by allowing the slot 301 to be aligned or misaligned with the detection unit 31, a clear indicator is provided for judging the number of sheets. When the number of sheets is normal, the slot 301 and the detection unit 31 are misaligned. When double sheets are present, and the slot 301 and the detection unit 31 are aligned, the detection unit 31 sends a double sheet signal and releases an alarm through an external alarm device connected to it, so as to promptly remind the staff and prevent the sheets from entering subsequent processes. This effectively prevents production interruptions caused by the failure to detect double sheets due to human error, reduces the time and effort invested in troubleshooting and equipment debugging, and improves production efficiency.

[0035] Furthermore, the detection assembly includes a first connecting rod 32. The first connecting rod 32 is located in the middle of the clamping assembly. One end of the first connecting rod 32 is rotatably mounted on one end of the clamping assembly, and a first locking screw 33 is provided between one end of the first connecting rod 32 and the clamping assembly. A second through hole is provided between the first locking screw 33 and the first connecting rod 32. An opening is provided between the other end of the first connecting rod 32 and the other end of the clamping assembly. An adjusting bolt 34 is provided between the other end of the first connecting rod 32 and the opening, and a support spring 35 is also provided between the other end of the first connecting rod 32 and the opening. The support spring 35 needs to be selected by those skilled in the art according to the actual production situation, so no specific limitation is made, and the support spring 35 is located on one side of the adjusting bolt 34. By setting a first connecting rod 32 and a first adjusting bolt 34, the position of the first connecting rod 32 can be flexibly adjusted by tightening or loosening the first adjusting bolt 34 downwards, thereby adjusting the gap between the detection wheel 30 and the pressure wheel 20 and the relative position between the detection wheel 30 and the detection unit 31. In other words, the operator can easily adjust the parameters of the detection component according to the paper of different thicknesses and materials, ensuring that the detection component is always in the best working condition, improving the adaptability and versatility of the equipment, and meeting the diverse needs of tag production.

[0036] Furthermore, the adjusting bolt 34 includes an adjusting cap 341 and a threaded rod 342. The adjusting cap 341 is located above the first connecting rod 32, and can be moved closer to or further away from the adjusting cap 341. The threaded rod 342 is fixed below the adjusting cap 341, and its end passes through the other end of the first connecting rod 32, where it is threadedly connected to the clamping assembly. A through hole is provided between the threaded rod 342 and the other end of the first connecting rod 32. By rotating the adjusting cap 341, the connection position between the threaded rod 342 and the clamping assembly can be precisely controlled, thereby adjusting the height of the first connecting rod 32. This makes the adjustment of the detection assembly more convenient and precise, allowing the detection assembly to be quickly adjusted to the appropriate position, improving the adaptability and versatility of the equipment, and meeting diverse tag production needs.

[0037] Preferably, the clamping assembly includes a fixed base 21 and a second connecting rod 22. The fixed base 21 is mounted on the frame 10. One end of the second connecting rod 22 is rotatably mounted on the fixed base 21, and a second locking screw 23 is provided between one end of the second connecting rod 22 and the fixed base 21. A third through hole is provided between the second locking screw 23 and the second connecting rod 22. The other end of the second connecting rod 22 is rotatably connected to the pressure roller 20.

[0038] The second connecting rod 22 is rotatably connected to the fixed base 21 via the second locking screw 23, allowing the pressing assembly to change position and angle according to actual conditions. This enables better height adjustment of the pressure roller 20 based on the actual number of sheets, preventing uneven lifting of the pressure roller 20 and ensuring that the paper enters subsequent processes. This effectively prevents production interruptions caused by human error leading to double sheets not being detected in time, reduces the time and effort invested in troubleshooting and equipment debugging, and improves production efficiency.

[0039] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A paper double-sheet detection mechanism, characterized in that, include: frame; A transmission module, located within the frame, is used for paper transmission; A pressing assembly is mounted on the frame and located above the transmission module, for pressing the paper onto the transmission module; the pressing assembly has a movably connected pressure roller that abuts against the paper; A detection assembly is disposed on the clamping assembly and located above the pressure roller; the detection assembly contains a detection wheel and a detection unit rotatably connected to the clamping assembly; the detection wheel is located below the detection unit, and there is a certain gap between the detection wheel and the pressure roller; the pressure roller can move closer to or further away from the detection wheel, and when the pressure roller moves closer to and touches the detection wheel, the pressure roller drives the detection wheel to rotate; the detection unit is disposed on the top of the clamping assembly and is connected to an external alarm device.

2. The paper double-sheet detection mechanism according to claim 1, characterized in that, The bottom of the detection unit is hollow, and the top of the detection wheel is located inside the hollow structure.

3. The paper double-sheet detection mechanism according to claim 2, characterized in that, The detection unit is an optical fiber sensor.

4. The paper double-sheet detection mechanism according to any one of claims 1-3, characterized in that, The detection wheel has an inwardly extending slot; the slot can be aligned or misaligned with the detection unit.

5. The paper double-sheet detection mechanism according to claim 4, characterized in that, The detection component includes a first connecting rod; the first connecting rod is disposed in the middle of the clamping component; one end of the first connecting rod is rotatably disposed on one end of the clamping component, and a first locking screw is provided between one end of the first connecting rod and the clamping component; an opening is provided between the other end of the first connecting rod and the other end of the clamping component; an adjusting bolt is provided between the other end of the first connecting rod and the opening, and a support spring is also provided between the other end of the first connecting rod and the opening, and the support spring is disposed on one side of the adjusting bolt.

6. The paper double-sheet detection mechanism according to claim 5, characterized in that, The adjusting bolt includes an adjusting cap and a threaded rod; the adjusting cap is located above the first connecting rod, and the adjusting cap can be close to or away from the adjusting cap; the threaded rod is fixed below the adjusting cap, and the end of the threaded rod passes through the other end of the first connecting rod and is threadedly connected to the clamping assembly; a through hole is provided between the threaded rod and the other end of the first connecting rod.

7. The paper double-sheet detection mechanism according to claim 1, characterized in that, The pressing assembly includes a fixed base and a second connecting rod; the fixed base is mounted on the frame; one end of the second connecting rod is rotatably mounted on the fixed base, and a second locking screw is provided between one end of the second connecting rod and the fixed base; the other end of the second connecting rod is rotatably connected to the pressure roller.