NFC label labeling production line system

Abstract

The embodiment of the invention relates to an NFC label labeling production line system which comprises a conveying unit, a feeding unit, a labeling unit, a checking unit, a removing unit and an upper computer, through cooperative control of a material clamping air cylinder and a limiting air cylinder of the feeding unit, the material feeding position deviation and the material stacking rate are reduced, and the single-time feeding accuracy rate and the production efficiency are improved; the multi-dimensional adjustment of the NFC label detector is realized through a multi-dimensional adjustment mechanism of the verification unit, the detection angle and position of a product label are met, and the detection angle and position are accurately adjusted; accurate jacking of incoming materials is achieved through cooperation of a telescopic air cylinder and an incoming material sensor of the removing unit, a locking structure adopts a gravity self-locking elastic clamping jaw to achieve automatic locking of cached materials, the problems of material stacking, clamping stagnation, monitoring lag and the like in the production process are avoided, and therefore the production efficiency of a production line system is comprehensively improved.

Description

Technical Field

[0001] The present invention relates to the field of near field communication, and in particular to a production line system for NFC tag labeling. Background Art

[0002] Near Field Communication (NFC) tags, with their unique user identification (UID), have gained widespread and proven success in the anti-counterfeiting market. NFC tags are widely used in product anti-counterfeiting efforts, particularly in tobacco packaging.

[0003] The NFC tag labeling production line system includes the product loading, labeling, detection and rejection processes. The existing NFC tag labeling production line system is prone to problems such as stacking, jamming, and monitoring lag, especially during the feeding and rejection processes. In addition, when writing data, the existing NFC tag labeling production line system cannot accurately adjust the distance between the writing device and the label, as well as the distance between the label and the product, resulting in a large number of tag reading, writing and labeling failures, thereby leading to low production efficiency of the entire NFC tag labeling production line system. Summary of the Invention

[0004] The purpose of the present invention is to address the defects of the prior art and provide an NFC tag labeling production line system, which includes a transmission unit, a feeding unit, a labeling unit, a verification unit, a rejection unit and a host computer. Through the coordinated control of the clamping cylinder and the limit cylinder of the feeding unit, the material feeding position deviation and the stacking rate are reduced, and the single feeding accuracy and production efficiency are improved; the double-directional guide rails and the threaded pair locking mechanism of the high and low hovering mechanism of the labeling unit are used to achieve the smooth lifting and lowering of the labeling equipment, and the coordinated effect of the paper guide mechanism and the label writing mechanism is combined to achieve the precise transportation, data writing and labeling operation of the label, thereby improving the success rate of label reading, writing and labeling; through the verification unit, the material feeding position deviation and the stacking rate are reduced, and the material feeding accuracy and production efficiency are improved; through the double-directional guide rails and the threaded pair locking mechanism of the high and low hovering mechanism of the labeling unit, the labeling equipment is smoothly lifted and lowered, and the coordinated effect of the paper guide mechanism and the label writing mechanism is combined to achieve the precise transportation, data writing and labeling operation of the label, thereby improving the success rate of label reading, writing and labeling; through the verification unit, the material feeding position deviation and the stacking rate are reduced, and the stacking rate and the stacking rate are reduced, and the single ... The multi-dimensional adjustment mechanism of the inspection unit realizes multi-dimensional adjustment of the NFC tag detector to meet the detection angle and position of the product tag, and accurately adjusts the detection angle and position; the NFC tag detector can realize physical and data dual-dimensional detection, thereby comprehensively detecting NFC tags, improving the detection coverage rate, and preventing damaged tags from flowing into the next process; the telescopic cylinder of the rejection unit and the incoming material sensor are coordinated to achieve precise lifting of the incoming material, and the locking structure adopts gravity self-locking elastic claws to realize automatic locking of the buffered material, avoiding problems such as stacking, jamming, and monitoring lag in the production process, thereby comprehensively improving the production efficiency of the production line system.

[0005] To achieve the above objectives, the present invention provides an NFC tag labeling production line system, comprising:

[0006] The NFC tag labeling production line system includes a transmission unit, a feeding unit, a labeling unit, a verification unit, a rejection unit and a host computer; wherein,

[0007] The conveying unit includes a conveying bracket and a conveyor belt. The conveying bracket is used to fix the feeding unit, labeling unit, verification unit, rejection unit and host computer; the conveyor belt is set on the conveying bracket and is used to transport the material, so that the material transportation process passes through the feeding unit, labeling unit, verification unit and rejection unit in sequence;

[0008] The feeding unit includes a storage module and a delivery module. The storage module is used to store materials. The delivery module is arranged at the bottom of the storage module and is used to control the delivery of materials in the storage module. The delivered materials are transmitted to the labeling unit via the conveyor belt.

[0009] The labeling unit is used to attach the NFC tag to the material, and the labeled material is transmitted to the verification unit via the conveyor belt;

[0010] The verification unit is used to inspect the NFC tag on the material, and the inspected material is transmitted to the rejection unit;

[0011] The rejection unit includes a rejection buffer module and a lifting module; the rejection buffer module is arranged above the conveyor belt and is used to store materials that are unqualified by the verification unit; the lifting module is fixed to the conveyor bracket and is located below the conveyor belt, and is used to lift the unqualified materials to the rejection buffer module;

[0012] The host computer is electrically connected to the conveying unit, the feeding unit, the labeling unit, the verification unit, and the rejection unit;

[0013] When the production line system is working, the host computer controls the feeding unit to feed the material onto the conveyor belt, and the conveyor belt transports the material to the labeling unit. The host computer controls the labeling unit to label the material, and then transmits it to the verification unit via the conveyor belt. The host computer controls the verification unit to inspect the label on the material, and generates a test result and sends it to the host computer. The inspected material is transmitted to the rejection unit via the conveyor belt; when the host computer receives an unqualified test result, it generates a rejection signal and sends it to the rejection unit, and the rejection unit rejects the incoming material according to the rejection signal.

[0014] Further preferably, the storage module is a U-shaped trough structure with a discharge port at the bottom. The storage module is provided with N positions, the Nth position is located at the top of the storage module, and the first position is located at the bottom of the storage module.

[0015] The delivery module includes two clamping cylinders and two limiting cylinders; wherein, the two clamping cylinders are respectively arranged on both sides of the second bin, and the clamping cylinders realize clamping and releasing of the material in the second bin by extending and retracting the clamping piston rod; the two limiting cylinders are respectively arranged below the two clamping cylinders and located above the discharge port of the storage module, and the limiting cylinders realize locking and delivery of the material in the first bin by extending and retracting the limiting piston rod.

[0016] Further preferably, the feeding unit further includes a bin position detection sensor and a feeding sensor;

[0017] Among them, the bin detection sensor is arranged on the inner side of the U-shaped trough side wall and is located above the Nth bin to monitor the material height in the storage module;

[0018] The feeding sensor is arranged at the first bin to monitor the status of the first bin.

[0019] Further preferably, when the material storage module is being loaded, the upper computer controls the limit cylinder to be in an extended state, locks the material in the first bin, and controls the clamping cylinder to be in a retracted state. At the same time, the bin detection sensor monitors the material height in the material storage module in real time. When the material is lower than the minimum inventory height, a refill warning signal is sent to the upper computer.

[0020] When feeding, the upper computer controls the clamping cylinder to be in an extended state to lock the material in the second bin, and then controls the limit cylinder to be in a retracted state to release the material in the first bin to the feeding station, thereby completing a single feeding;

[0021] When the feeding sensor detects that there is no material in the first bin, it generates a material unloading signal and sends it to the upper computer. The upper computer controls the limit cylinder to be in an extended state and controls the clamping cylinder to be in a retracted state. As a result, the material in the second bin is released to the first bin and locked by the limit cylinder, and the cycle continues.

[0022] Further preferably, the labeling unit includes a high and low hovering mechanism, a device main body mechanism, a label writing mechanism and a material receiving mechanism; wherein,

[0023] The high and low hovering mechanism includes a fixed seat, a transmission rod and a sliding mounting block; wherein the transmission rod is fixed to the fixed seat, and the sliding mounting block is arranged on the transmission rod and can move up and down along the transmission rod;

[0024] The main body of the device is fixed on the height-low hovering mechanism, and the height is adjusted by the height-low hovering mechanism;

[0025] The label writing mechanism is fixed on the main body of the device and includes an NFC reading and writing dual antenna, an NFC reader / writer, an adjustment plate and a label peeling module; wherein, the NFC reader / writer and the NFC reading and writing dual antenna are installed on the adjustment plate, the NFC reader / writer generates label data, and the NFC reading and writing dual antenna writes the label data into the label on the label tape; the label peeling module is arranged at the end of the adjustment plate, peels off the label on the label tape, and the peeled label is pasted on the product, and the peeled backing paper tape is conveyed to the receiving mechanism.

[0026] Preferably, the verification unit includes a chassis, a multi-dimensional adjuster and an NFC tag detector; wherein,

[0027] The chassis is fixed on a conveying bracket of the production line;

[0028] The multi-dimensional adjuster is installed in the chassis and is used to perform multi-dimensional adjustment on the NFC tag detector;

[0029] The NFC tag detector is fixedly connected to the multi-dimensional adjuster and is arranged above the conveyor belt to verify the tags attached to the materials on the conveyor belt. The NFC tag detector includes an RFID tag detection module and an NFC reader / writer module. The RFID tag detection module detects the integrity of the tag antenna through magnetic field coupling; the NFC reader / writer module verifies the data format and encryption information.

[0030] Further preferably, the multi-dimensional adjuster includes a lifting adjustment mechanism, a left-right adjustment mechanism, a rotating disk and a rotating disk; wherein,

[0031] The lifting adjustment mechanism includes a lifting adjustment shaft and a lifting locking sleeve; wherein one end of the lifting adjustment shaft is fixed to the top of the chassis; and the lifting locking sleeve is sleeved on the lifting adjustment shaft;

[0032] The left-right adjustment mechanism includes a sliding track and a sliding platform; wherein, the two ends of the sliding track are fixed to the inner wall of the chassis and are arranged perpendicular to the lifting adjustment shaft; the sliding platform is fixedly connected to the lifting locking sleeve, and the bottom of the sliding platform is provided with a sliding block, which is slidably mounted on the sliding track;

[0033] The rotating disk is sleeved on the other end of the lifting adjustment shaft;

[0034] The rotating disk is fixedly connected to the rotary disk and is arranged perpendicular to the rotating disk.

[0035] Further preferably, the reject buffer module is a reject silo, which is a U-shaped trough structure with a silo entrance at the bottom. The reject silo is provided with a plurality of reject positions, and the first reject position is located at the bottom of the silo;

[0036] The lifting module includes two locking mechanisms, a cylinder bracket, and a telescopic cylinder;

[0037] The two locking mechanisms are elastic claws, and the two locking mechanisms are respectively arranged on both sides of the rejection bin to lock the material in the first rejection bin;

[0038] The cylinder support is fixed on the conveying support and is located below the conveyor belt;

[0039] The telescopic cylinder is fixed on the cylinder bracket and is located below the silo entrance. The telescopic cylinder is extended to push the material on the conveyor belt to the first rejection position.

[0040] Further preferably, the rejection unit further includes a silo detection sensor and an incoming material sensor; wherein,

[0041] The silo detection sensor is arranged above the inner side of the U-shaped trough body side wall to monitor the material height in the rejection silo;

[0042] The incoming material sensor is arranged on the conveying bracket to monitor the incoming material on the conveyor belt.

[0043] Further preferably, the host computer triggers the detection mode of the incoming material sensor according to the rejection signal. When the material is transported to the detection area of ​​the incoming material sensor, the incoming material sensor reports to the host computer, and the host computer generates a lifting signal to control the extension of the telescopic cylinder to push the material on the conveyor belt off the conveyor belt and enter the locking mechanism. The elastic claws of the locking mechanism are mechanically locked by the dead weight of the material.

[0044] After the telescopic cylinder is pushed into place, the host computer controls the telescopic cylinder to retract, and at the same time controls the silo detection sensor to monitor the height of the material in the rejection silo. When the material is higher than the maximum inventory height, an early warning signal is sent to the host computer.

[0045] An NFC tag labeling production line system provided by an embodiment of the present invention reduces the deviation of material feeding position and stacking rate through the coordinated control of the clamping cylinder and the limit cylinder of the feeding unit, thereby improving the accuracy of single feeding and production efficiency; the labeling equipment is smoothly raised and lowered through the double-direction guide rail and the threaded pair locking mechanism of the high and low hovering mechanism of the labeling unit, and the coordinated action of the paper guide mechanism and the label writing mechanism is combined to realize the precise transportation, data writing and labeling operation of the label, thereby improving the success rate of label reading, writing and labeling; the NFC tag detector is realized through the multi-dimensional adjustment mechanism of the verification unit The multi-dimensional adjustment can meet the detection angle and position of product labels and accurately adjust the detection angle and position; the NFC tag detector can realize physical and data dual-dimensional detection, thereby comprehensively detecting NFC tags, improving the detection coverage rate, and preventing damaged tags from flowing into the next process; the telescopic cylinder of the rejection unit and the incoming material sensor are coordinated to realize the precise lifting of incoming materials, and the locking structure adopts gravity self-locking elastic claws to realize automatic locking of buffered materials, avoiding problems such as stacking, jamming, and monitoring lag in the production process, thereby comprehensively improving the production efficiency of the production line system. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of the structure of an NFC tag labeling production line system provided by an embodiment of the present invention;

[0047] Figure 2 A schematic structural diagram of a feeding unit provided in an embodiment of the present invention;

[0048] Figure 3 A schematic diagram of the structure of a clamping cylinder provided in an embodiment of the present invention;

[0049] Figure 4 A schematic cross-sectional view of a clamping cylinder provided in an embodiment of the present invention;

[0050] Figure 5 A schematic diagram of a limit cylinder structure provided by an embodiment of the present invention;

[0051] Figure 6 A schematic cross-sectional view of a position limiting cylinder provided in an embodiment of the present invention;

[0052] Figure 7 A schematic diagram of a labeling unit structure provided by an embodiment of the present invention Figure 1 ;

[0053] Figure 8 A schematic diagram of a labeling unit structure provided by an embodiment of the present invention Figure 2 ;

[0054] Figure 9 A schematic diagram of a high and low hovering mechanism structure provided by an embodiment of the present invention;

[0055] Figure 10 A schematic diagram of the structure of a verification unit provided in an embodiment of the present invention;

[0056] Figure 11 A schematic diagram of the interior of a verification unit provided by an embodiment of the present invention;

[0057] Figure 12 A schematic diagram of a local structure of a verification unit provided in an embodiment of the present invention Figure 1 ;

[0058] Figure 13 A schematic diagram of a local structure of a verification unit provided in an embodiment of the present invention Figure 2 ;

[0059] Figure 14 A schematic structural diagram of a rotating disk provided in an embodiment of the present invention;

[0060] Figure 15 A schematic diagram of sensor installation provided by an embodiment of the present invention;

[0061] Figure 16 A schematic diagram of a structure of a rejection unit provided by an embodiment of the present invention;

[0062] Figure 17 A partial cross-sectional schematic diagram of a culling unit provided by an embodiment of the present invention;

[0063] Figure 18 A schematic diagram of the structure of a cylinder bracket and a telescopic cylinder provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0064] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0065] The NFC tag labeling production line system provided by the embodiment of the present invention can be applied to various scenarios, such as the labeling process of cigarette box labels. Figure 1 A schematic diagram of the structure of an NFC tag labeling production line system provided by an embodiment of the present invention is shown as follows: Figure 1 As shown, the NFC tag labeling production line system provided by the embodiment of the present invention includes a transmission unit 40, a material 50, a feeding unit 60, a labeling unit 10, a verification unit 20, a rejection unit 30 and a host computer. Each unit is briefly introduced below.

[0066] The conveying unit 40 includes a conveying bracket 401 and a conveyor belt 402. The conveying bracket 401 is used to fix the feeding unit 60, the labeling unit 10, the verification unit 20, the rejection unit 30 and the host computer; the conveyor belt 402 is set on the conveying bracket 401, and is used to transport the material 50, so that the transportation process of the material 50 passes through the feeding unit 60, the labeling unit 10, the verification unit 20, and the rejection unit 30 in sequence.

[0067] The feeding unit 60 includes a storage module and a delivery module. The storage module is used to store materials. The delivery module is set at the bottom of the storage module and is used to control the delivery of materials in the storage module. The delivered materials are transmitted to the labeling unit via a conveyor belt.

[0068] The labeling unit 10 is used to attach the NFC tag to the material, and the labeled material is transmitted to the verification unit via the conveyor belt.

[0069] The verification unit 20 is used to inspect the NFC tag on the material 50 , and the inspected material 50 is transmitted to the rejection unit 30 .

[0070] The rejection unit 30 includes a rejection buffer module and a lifting module; the rejection buffer module is arranged above the conveyor belt and is used to store materials that are unqualified by the verification unit; the lifting module is fixed on the conveying bracket and is located below the conveyor belt, and is used to lift the unqualified materials to the rejection buffer module.

[0071] The host computer is electrically connected to the conveying unit 40 , the material 50 , the feeding unit 60 , the labeling unit 10 , the verification unit 20 , and the rejection unit 30 , and controls the conveying unit 40 , the material 50 , the feeding unit 60 , the labeling unit 10 , the verification unit 20 , and the rejection unit 30 .

[0072] When the production line system is working, the upper computer controls the feeding unit 60 to feed the material to the conveyor belt 402, and the conveyor belt transports the material 50 to the labeling unit. The upper computer controls the labeling unit 10 to label the material 50, and then transmits it to the verification unit 20 via the conveyor belt. The upper computer controls the verification unit 20 to inspect the label line on the material 50, and generates a test result and sends it to the upper computer. The inspected material is transmitted to the rejection unit 30 via the conveyor belt; when the upper computer receives an unqualified test result, it generates a rejection signal and sends it to the rejection unit 30, and the rejection unit 30 rejects the incoming material according to the rejection signal.

[0073] The following is a detailed introduction to each unit of the NFC tag labeling production line system.

[0074] Part 1: Feeding unit.

[0075] Figure 2 A schematic diagram of a feeding unit structure provided in an embodiment of the present invention is shown as follows: Figure 2 As shown, the feeding unit provided in the embodiment of the present invention is arranged on the conveying unit. The feeding unit 60 provided in the embodiment of the present invention includes a storage module 601 and a delivery module.

[0076] The storage module 601 is used to place the material 50. The storage module 601 is a U-shaped trough structure, preferably made of high-strength aluminum alloy. The bottom of the trough is provided with a hollow structure as the discharge port. There are N positions in the storage module 601, and each position has the same height. The N positions are distributed from bottom to top. The first position is located at the bottom of the storage module 601 and above the discharge port. The second position is located above the first position, and the Nth position is located at the top of the storage module 601.

[0077] In a preferred embodiment, the inner wall of the storage module 601 is provided with an ultra-high molecular weight polyethylene coating, which greatly reduces the friction coefficient, allows the material 50 to slide smoothly in the bin, and reduces the impact of the material 50 jamming on the mechanism.

[0078] In a preferred embodiment, a plurality of mounting holes are provided on both sides of the U-shaped trough of the storage module 601, and two clamping cylinders 603 and two limiting cylinders 604 are fixed on the U-shaped trough through the mounting holes to ensure that the material 50 is stacked in order in the warehouse. Furthermore, the clamping cylinder 603 and the limiting cylinder 604 both adopt anti-loosening cylinder mounting components, which are locked with double nuts and prevented from loosening with elastic washers, so that after multiple actions of the cylinder, the loosening amount of the mounting bolts can be guaranteed to be ≤0.1mm.

[0079] The delivery module may specifically include two clamping cylinders 603 and two limiting cylinders 604 .

[0080] Two clamping cylinders 603, located on either side of the second bin, are connected to the pneumatic control system via air pipes and receive control signals from the host computer to clamp and release the material 50. Specifically, the clamping cylinders 603 have clamping piston rods that can be driven to extend or retract. This movement clamps and releases the material 50 in the second bin. When the two clamping piston rods extend, the material 50 in the second bin is clamped. When the two clamping piston rods retract, the material 50 in the second bin is released, and the material 50 in the second bin falls to the first bin. During use, the clamping cylinders 603 clamp the material 50 above the first bin before feeding, forming a mechanical barrier to ensure that only the bottom layer of material 50 is fed.

[0081] In a preferred embodiment, Figure 3 and Figure 4As shown, a clamping block 6031 is provided at the end of the clamping piston rod. A non-slip rubber pad is affixed to the surface of the clamping block 6031. When the clamping piston rod is extended, the two clamping blocks 6031 of the clamping piston rod clamp on both sides of the material 50 in the second bin, thereby clamping the material 50 in the second bin. The clamping block 6031 is preferably a V-shaped clamping block 6031, and the contact surface with the material 50 is designed to be inclined at an angle of 15° to 30°. This increases the clamping friction and can achieve a clamping force of over 50N, effectively preventing the material 50 from sliding and reducing the stacking rate.

[0082] Two limiting cylinders 604 are respectively arranged below the two clamping cylinders 603, respectively arranged on both sides of the first bin, and located above the discharge port of the storage module 601. The extension and retraction of the cylinders are controlled by a pneumatic control valve to realize the locking and delivery of the material 50. Specifically, the limiting cylinder 604 has a limiting piston rod, which can drive the limiting piston rod to extend or retract. The limiting cylinder 604 realizes the locking and delivery of the material 50 in the first bin by extending and retracting the limiting piston rod. When the two limiting piston rods are extended, the material 50 in the first bin is locked. When the two limiting piston rods are retracted, the material 50 in the first bin is delivered, and the material 50 in the first bin falls onto the conveyor belt.

[0083] In a preferred embodiment, Figure 5 and Figure 6 As shown, a stopper 6041 is provided at the end of the limiting piston rod. The stopper 6041 adopts a stepped design, and the surface of the stopper 6041 is treated with wear resistance, which greatly increases the contact area with the material 50, improves the locking stability, and reduces the probability of the material 50 slipping. When the limiting piston rod is extended, the material 50 in the first bin is placed on the two limiting piston rods, thereby achieving the locking of the material 50 in the first bin.

[0084] In a preferred embodiment, the connection between the cylinder piston rod and the clamping block 6031 and the stopper 6041 adopts a ball joint structure to compensate for installation errors, reduce mechanical stress concentration, and greatly reduce the wear rate of the piston rod.

[0085] In a preferred embodiment, the feeding unit further includes a bin position detection sensor and a feeding sensor.

[0086] The bin level detection sensor 602 is located inside the sidewall of the U-shaped trough, above the Nth bin position, to monitor the height of the material 50 within the storage module 601. Preferably, the bin level detection sensor 602 utilizes a diffuse reflection photoelectric sensor, with its detection surface parallel to the surface where the material 50 is stored. This sensor monitors the remaining material 50 within the storage module 601 in real time. In one specific example, the bin level detection sensor 602 can employ a dynamic threshold algorithm: It collects the reflected light intensity signal of the material 50 in real time and divides the height of the material 50 within the storage module 601 into five monitoring intervals: full, high inventory, normal inventory, low inventory, and empty. Each interval corresponds to a different output signal. As the height of the material 50 changes, the bin level detection sensor 602 automatically adjusts its detection threshold to ensure a detection error of ≤5mm under varying ambient lighting conditions, such as ±200 lux. Tests have shown that, compared to traditional timed detection, the response time is reduced from 3s to 0.5s, enabling real-time and accurate monitoring of the remaining material, reducing production line downtime due to material shortages by 80%.

[0087] The feeding sensor 605 is arranged in the first bin and is used to monitor the status of the first bin, that is, to monitor whether there is material 50 in the first bin; the feeding sensor 605 is preferably a through-beam photoelectric sensor, and the transmitting end and the receiving end are respectively arranged on both sides of the first bin, for triggering the unloading signal to ensure that the unloading action is executed accurately. When the receiving end receives the signal emitted by the transmitting end, it means that there is no material 50 in the first bin.

[0088] The host computer is electrically connected to the bin detection sensor 602, the two clamping cylinders 603, the two limit cylinders 604, and the feeding sensor 605. Specifically, the controller of this application adopts a pneumatic timing control module to accurately program the action sequence, extension, and retraction time of the clamping cylinders and the limit cylinders. The solenoid valve group is used to control the on-off of the cylinder air circuit, so that the clamping action of the clamping cylinder precedes the release action of the limit cylinder, for example, 200ms; the release action of the clamping cylinder lags behind the extension and return action of the limit cylinder, for example, 100ms, and the action synchronization error is ≤50ms. After 100,000 cycle tests, the material stagnation rate is reduced to ≤0.3%, ensuring continuous and smooth feeding action.

[0089] The above is an introduction to the structure of the feeding unit 60 provided in this embodiment. Based on the understanding of the structure of the feeding unit 60 provided in this embodiment, its working process is described below. Its working process includes the following steps:

[0090] Loading and locking material 50: When loading material 50 into storage module 601, material 50 is added to the storage module 601 and stacked within the storage module 601 by its own gravity. The host computer controls the limit cylinder 604 to extend, and its limit block 6041 locks the material 50 in the first position to prevent the material 50 from accidentally falling. The clamping cylinder 603 is controlled to retract and wait for the feeding instruction. At the same time, the position detection sensor 602 monitors the height of the material 50 in the storage module 601 in real time. When the material 50 falls below the minimum storage level, a restocking warning signal is sent to the host computer.

[0091] Feeding trigger and execution: When feeding, the upper computer controls the clamping cylinder 603 to be in the extended state, and its clamping block 6031 locks the material 50 in the second bin to prevent multiple layers of material 50 from sliding off at the same time, and then controls the limit cylinder 604 to be in the retracted state, releasing the lock on the material 50 in the first bin, and releasing the material 50 in the first bin to the feeding station by gravity, thereby completing a single feeding action.

[0092] Reset and cycle: When the feeding sensor 605 detects that there is no material 50 in the first bin, it generates a feeding signal and sends it to the host computer. The host computer controls the limit cylinder 604 to be extended and the clamping cylinder 603 to be retracted. As a result, the material 50 in the second bin is released to the first bin and locked by the limit cylinder 604. The cycle repeats. In other words, after the limit cylinder 604 completes the feeding, it immediately extends back to its original position and relocks the next material 50 to be fed into the storage module 601. The clamping cylinder 603 then retracts, releasing the clamping of the upper material 50, allowing the material 50 to fall onto the limit block 6041 of the limit cylinder 604, waiting for the next feeding trigger signal. This cycle repeats to ensure continuous and accurate feeding.

[0093] A feeding unit provided by an embodiment of the present invention reduces the material feeding position deviation and the stacking rate through the coordinated control of the clamping cylinder and the limit cylinder, thereby improving the single feeding accuracy and production efficiency; the material remaining amount is monitored in real time by the warehouse detection sensor, thereby reducing the replenishment warning response time, effectively avoiding the production line shutdown due to material shortage, and greatly improving the continuous operation time of the production line; through pneumatic timing control and anti-loosening and wear-resistant design, the material stagnation rate and the mechanism vibration transmission rate are reduced, ensuring stability under long-term high-frequency operation, extending the service life, and reducing maintenance costs.

[0094] Part 2: Labeling unit.

[0095] A labeling unit provided in an embodiment of the present invention is fixed on a production line, which conveys products via a conveyor belt to implement data writing on labels. Figure 7 、 Figure 8 A schematic diagram of a labeling unit structure provided by an embodiment of the present invention is shown as follows: Figure 7 and Figure 8 As shown, the labeling unit 10 includes a high and low hovering mechanism 101, a device main body mechanism, a label writing mechanism 106 and a material receiving mechanism 107. The following is a detailed description of the various structures of the labeling unit.

[0096] The high and low suspension mechanism 101 is used to adjust the height of the reading and writing device, such as Figure 9 As shown, the precise transportation, data writing and labeling operations of the label are realized. The high and low hovering mechanism 101 specifically includes a fixed seat 1011, a transmission rod 1012 and a sliding mounting block 1013. The high and low hovering mechanism 101 is specifically introduced below.

[0097] Among them, the fixed base 1011 is used to provide rigid support and bear the load of the equipment and moving components. Preferably, a horizontal adjustment bolt is set at the bottom of the fixed base 1011 to calibrate the horizontality of the equipment and be compatible with the installation requirements of production lines of different widths. The horizontal adjustment bolt is set at the bottom to calibrate the horizontality of the equipment within the range of ±3°, which solves the problem of equipment operation stability caused by the uneven installation surface of the production line; the modular design of the fixed base 1011 shortens the installation and commissioning time of the equipment; the horizontal adjustment function ensures the smooth operation of the equipment in a complex production line environment, and the vibration of the equipment is controlled below 0.1mm / s.

[0098] The transmission rod 1012 is fixed on the fixing seat 1011 and can be specifically a threaded rod.

[0099] The sliding mounting block 1013 is used to install the device panel 102 to achieve the up and down displacement of the device panel 102. The sliding mounting block 1013 is set on the transmission rod 1012 and can be displaced up and down along the transmission rod 1012. Specifically, the sliding mounting block 1013 has a threaded hole integrated inside that is compatible with the transmission rod 1012.

[0100] In some preferred embodiments, a hand crank handle 1016 is further provided at one end of the transmission rod 1012, and power input is achieved through hand cranking. The transmission rod 1012 is connected to the sliding mounting block 1013 through a threaded pair. When the hand crank handle 1016 is rotated, the manual rotational motion is converted into an axial linear driving force, thereby achieving the up and down displacement of the sliding mounting block 1013, thereby achieving height adjustment. The present application utilizes the self-locking characteristics of the threaded pair, such as the use of trapezoidal threads or pitch designs that meet the self-locking conditions. After adjusting to the target height, it can be stably hovered without the need for an additional locking device, thereby ensuring that the spatial position of the labeling station on the production line is constant.

[0101] In some preferred embodiments, the high and low hovering mechanism 101 also includes two guide rods 1014, which are arranged on the fixed seat 1011 and parallel to the transmission rod 1012 to form a dual-axis guide, preferably arranged on both sides of the transmission rod 1012; the sliding mounting block 1013 is slid onto the two guide rods 1014 through the internal guide hole, so that the two guide rods 1014 form a sliding fit with the sliding mounting block 1013, constraining the axial rotation freedom of the sliding mounting block 1013, eliminating the risk of tilting during the sliding process, and ensuring the verticality of the motion trajectory.

[0102] In some preferred embodiments, the height-low hovering mechanism 101 further includes a device mounting block 1015, which employs a modular design. One end is connected to the device panel 102 via fasteners, and the other end is fixedly connected to the sliding mounting block 1013, enabling rapid assembly and maintenance of functional modules. Further preferably, the device mounting block 1015 may be provided with a sliding adjustment block 10151, one end of which is fixedly connected to the device panel 102. The device mounting block 1015 slides on the sliding adjustment block 10151, thereby enabling horizontal adjustment of the device panel 102. Combined with a threaded pair, multi-dimensional adjustment of the device panel 102 is achieved.

[0103] This application solves the labeling deviation problem caused by the mismatch between the distance between products of different specifications and the labeling machine through the multi-degree-of-freedom adjustment design of the high and low hovering mechanism. The structure adopts a dual-direction guide rail and a threaded pair locking mechanism, which can achieve fine-tuning of the distance within the range of 0-300mm, with an adjustment accuracy of ±0.5mm, meeting the labeling needs of diversified products.

[0104] The main body of the device is fixed on the high and low hovering mechanism 101, and the height is adjusted by the high and low hovering mechanism 101. The main body of the device includes a device panel 102, a label tape 103, a paper loading mechanism 104, and a paper guiding mechanism 105.

[0105] The equipment panel 102 is used to fix the paper loading mechanism 104, the paper guiding mechanism 105 and the label writing mechanism 106. The equipment panel 102 is fixed on the sliding mounting block 1013 of the high and low hovering mechanism 101 and is located above the product on the conveyor belt. The distance between the equipment panel 102 and the production line product is adjusted by the up and down displacement of the sliding mounting block 1013 of the high and low hovering mechanism 101, that is, the distance between the labeling label and the product is realized, thereby realizing accurate labeling of the product.

[0106] The label tape 103 includes a base paper tape and multiple labels arranged on the base paper tape. The base paper tape here is blank, and multiple labels are pasted on the base paper tape at intervals. At the beginning, no data is written to the label. One end of the label tape 103 is fixed on the paper loading mechanism 104, and the other end is fixed on the material receiving mechanism 107 after passing through the paper guiding mechanism 105 and the label writing mechanism 106. It should be noted that after the label tape 103 enters the label writing mechanism 106, the label data will be written, and the label will be peeled off after writing. The peeled label is pasted on the product, and the peeled base paper tape is recovered to the material receiving mechanism 107. This process will be introduced in detail below.

[0107] The paper loading mechanism 104 is used to fix the label tape 103. The paper loading mechanism 104 is fixed on the device panel 102, and the label tape 103 is fixed on the paper loading mechanism 104. Specifically, the paper loading mechanism 104 has a paper loading shaft, and one end of the label tape 103 is fixed on the paper loading shaft. At the beginning, the label tape 103 is in a roll shape and fixed on the paper loading shaft. It can rotate around the paper loading shaft to realize the transmission of the label tape 103.

[0108] The paper guide mechanism 105 is used to guide the label tape 103 during transport. It is fixed to the device panel 102, preferably located below the paper loading mechanism 104. Specifically, it may include multiple paper guide shafts to guide the label tape 103. The label tape 103 is sequentially wound around these multiple paper guide shafts before entering the label writing mechanism 106. This structure ensures that the label tape 103 does not wrinkle or deflect during high-speed transport. The synergistic effect of the high and low hovering mechanism and the paper guide mechanism can control the label attachment position deviation within ±1mm, effectively reducing downtime caused by abnormal label transport.

[0109] The label writing mechanism 106 is used to write tag data and remove the tag. It is fixed to the device panel 102 and specifically includes an NFC dual-antenna reader / writer 1062, an NFC reader / writer 1063, an adjustment plate 1061, and a label removal module 1064. The label strip 103 passes over the adjustment plate 1061. As the label strip 103 passes through the NFC dual-antenna reader / writer 1062 and the NFC reader / writer 1063, the tag data is written. The label strip 103 then passes through the label removal module 1064 to remove the tag. The adjustment plate 1061, NFC reader / writer 1063, NFC dual-antenna reader / writer 1062, and label removal module 1064 are described in detail below.

[0110] The adjustment plate 1061 is tilted and fixed to the device panel 102. An NFC reader / writer 1063 and an NFC dual-reader / writer antenna 1062 are mounted on the adjustment plate 1061. The NFC reader / writer 1063 is used to generate tag data. Preferably, the tag data includes dynamic data and fixed data. The dynamic data includes, but is not limited to, production batch and timestamp, and the fixed data includes, but is not limited to, product code and specification parameters. A cross-validation mechanism between dynamic and fixed data ensures data integrity and improves data writing reliability. The NFC dual-reader / writer antenna 1062 writes the tag data to the tag on the tag strip 103. Furthermore, preferably, the NFC dual-reader / writer antenna 1062 includes a first antenna and a second antenna. The first antenna writes dynamic data to the tag, and the second antenna writes fixed data to the tag. The dual-antenna design solves the problem of dynamic and static data conflicts and excessive writing time when using a single antenna. The dual antenna spacing is designed to be 50 mm. Combined with a synchronous control algorithm, the total writing time for a single tag is ≤ 200 ms, meeting the high-speed operation requirements of the production line. When the host computer detects that the data writing fails, the system triggers a background warning and immediately stops the labeling machine, solving the problem of bad labels mixed in due to the delayed response to traditional equipment failures. When the host computer detects that the data writing fails, the system triggers a background warning and immediately stops the labeling machine, solving the problem of bad labels mixed in due to the delayed response to traditional equipment failures; when it is detected that the data writing is successful, the label tape 103 enters the label peeling module 1064. The label peeling module 1064 is set at the end of the adjustment plate 1061, and can be specifically a sharp-angle peeling knife, which peels off the label on the label tape 103, and the peeled label is pasted on the product. The peeled bottom paper tape is conveyed to the material receiving mechanism 107. Preferably, the label peeling angle is stabilized at 30°±2°, thereby improving the consistency of label separation.

[0111] The receiving mechanism 107 is used for waste recycling. The receiving mechanism 107 is fixed on the equipment panel 102 to recycle the peeled base paper tape. Specifically, the receiving mechanism 107 has a receiving shaft, and the other end of the label tape 103 is fixed on the receiving shaft; preferably, the receiving mechanism 107 also includes a guide shaft, which is arranged in front of the receiving shaft to guide the label tape 103 before the label tape 103 enters the receiving shaft.

[0112] In some preferred embodiments, the labeling unit further includes a first touch terminal 109 electrically connected to the label writing mechanism 106. The first touch terminal 109 is used to receive label data issuance instructions input by the user and then send them to the label writing mechanism 106 for label data generation and writing.

[0113] In some preferred embodiments, precise label writing requires accurate monitoring of label position. The labeling unit also includes a sensor 108, located between the paper guide 105 and the label writing mechanism 6, to monitor label placement in real time. Sensor 108 and NFC reader / writer 1063 are linked to each other to provide real-time feedback on label placement and data writing results, enabling precise data writing.

[0114] In some preferred embodiments, the tag reader / writer device further includes an emergency stop button 1010, which can forcibly terminate device operation in an emergency to ensure operational safety. Preferably, the emergency stop button 1010 employs a hardware-level trigger design with a response time of ≤10ms, enabling rapid device shutdown in an emergency.

[0115] The above is an introduction to the structure of the labeling unit 10 provided in an embodiment of the present invention. Based on the understanding of its structure, its working process is described below.

[0116] The high and low hovering mechanism 101 is fixed on the production line, and the distance between the labeling unit and the products on the production line is adjusted by the high and low hovering mechanism 101 to ensure the accuracy of the labeling position and achieve accurate labeling of the products. The NFC tag tape 103 is loaded into the paper loading mechanism 104, one end is fixed on the paper loading mechanism 104, and the other end is guided by the paper guide mechanism 105, enters the label writing mechanism 106 and is fixed on the material receiving mechanism 107. It can be understood that in the initial state, the other end of the tag tape 103 needs to be fixed on the material receiving mechanism 107, so the front section of the tag tape 103 can be a blank section without a label. After the tag tape 103 is fixed, the operator selects NFC data through the first touch terminal 109 and starts the data issuance function. The tag starts feeding, and the sensor 108 detects the label in place in real time. When the tag is in place, the system starts the NFC reader 1063 to interact with the background data, generates dynamic data and fixed data for a single tag, and writes dynamic data and fixed data respectively through the NFC reading and writing dual antenna 1062; if the data writing fails, the background immediately issues an alarm and stops the equipment operation, waiting for the operator to handle the bad label. If the data is written successfully, the label peeling module 1064 completes the label peeling, and the label is directly attached to the product after peeling, and the waste tape is finally connected to the receiving mechanism 107 for recycling.

[0117] A labeling unit provided by an embodiment of the present invention realizes the smooth lifting and lowering of the labeling equipment through the dual-direction guide rails and threaded pair locking mechanism of the high and low hovering mechanism. Combined with the synergistic effect of the paper guide mechanism and the label writing mechanism, it realizes the precise transportation, data writing and labeling operations of the label, improves the success rate of label reading, writing and labeling, and shortens the label data writing time through the NFC reading and writing dual antennas, while improving the security of the label data.

[0118] Part 3: Verification unit.

[0119] Figure 10 A schematic diagram of a verification unit structure provided by an embodiment of the present invention is provided. Figure 11 A schematic diagram of the internal structure of a verification unit provided by an embodiment of the present invention is shown in FIG. Figure 10 and Figure 11 As shown in the figure, the verification unit provided by the embodiment of the present invention is fixed on the conveying unit of the production line. The verification unit of the present application is used to detect the NFC tag attached to the material on the conveyor belt. The verification unit 20 provided by the embodiment of the present invention includes a chassis 201, a multi-dimensional adjuster and an NFC tag detector 206. Figures 10 to 13 As shown in the figure, the structures of each part of the verification unit are introduced in detail.

[0120] Chassis 201 is used to fix the verification unit. Chassis 201 is fixed to the conveying bracket of the production line and is located above the material being conveyed on the conveyor belt. Specifically, chassis 201 includes a left chassis body 2011, a main chassis body 2012, and a right chassis body 2013, which are fixedly connected in sequence. The main chassis body 2012 serves as the hub. The main chassis body 2012 is fastened to the left chassis body 2011 and the right chassis body 2013 by bolts. Specifically, a composite connection of mortise and tenon joints and bolt fastening can be adopted to form a symmetrical frame. Here, the front end of the left chassis body 2011 is provided with a detection cabin with a built-in NFC tag detector 206. The sensor cable routing path is planned inside the right chassis body 2013 to achieve structural integration of functional modules. The overall structure is welded and formed with Q235 steel plates to ensure a rigid foundation. Preferably, chassis 201 also features an anti-resonance design: internal reinforcement ribs ensure that, at a production line speed of 30 pieces per minute, the amplitude is ≤ 0.05mm, ensuring the relative position stability between the NFC tag detector and the tag on the product, with a relative position deviation of ≤ ±0.2mm. The box-shaped frame and anti-resonance design of this application reduce the equipment's mean time between failures and lower maintenance costs.

[0121] The multi-dimensional adjuster is installed in the chassis and may specifically include a lifting adjustment mechanism 202, a left-right adjustment mechanism 203, a rotating disk 204, and a rotating disk 205. It is used to achieve multi-dimensional adjustment of the NFC tag detector 206, covering multi-dimensional adjustment of up and down height, left and right position, and tilt angle to meet the angle detection requirements of multiple products. The multi-dimensional adjuster is described in detail below.

[0122] The lift adjustment mechanism 202 is used to adjust the height of the verification unit, ensuring that the verification unit's NFC tag detector 206 is at the appropriate detection distance from the material's tag, achieving accurate tag detection. Specifically, the lift adjustment mechanism 202 includes a lift adjustment shaft 2021 and a lift locking sleeve 2022. One end of the lift adjustment shaft 2021 is fixed to the top of the chassis 201, and the lift locking sleeve 2022 is sleeved on the lift adjustment shaft 2021, allowing it to rise or fall on the lift adjustment shaft 2021 to achieve height adjustment of the detection equipment.

[0123] In a preferred embodiment, in order to achieve locking of the lifting adjustment structure, the lifting adjustment mechanism 202 also includes a lifting locking knob 2023, which penetrates the lifting adjustment shaft 2021 and the lifting locking sleeve 2022. After adjusting the height of the equipment, the lifting locking knob 2023 is screwed to fix and lock the lifting locking sleeve 2022 on the lifting adjustment shaft 2021, thereby achieving vertical locking of the NFC tag detector 206.

[0124] The left-right adjustment mechanism 203 is used to adjust the left-right displacement of the verification unit, so that the verification unit's NFC tag detector 206 is directly above the material's tag, achieving accurate tag detection. Specifically, the left-right adjustment mechanism 203 includes a sliding track 2031 and a sliding platform 2032. The two ends of the sliding track 2031 are fixed to the inner wall of the chassis 201 and are arranged perpendicular to the lifting adjustment shaft 2021. The sliding platform 2032 is fixedly connected to the lifting locking sleeve 2022. The bottom of the sliding platform 2032 is provided with a sliding block that slides on the sliding track 2031. The sliding block slides on the sliding track 2031 to achieve horizontal displacement adjustment of the NFC tag detector 206, thereby ensuring that the verification unit's NFC tag detector 206 is directly above the material's tag.

[0125] In a preferred embodiment, in order to ensure stability during the sliding process, the above-mentioned sliding rails 2031 are two, and the two sliding rails 2031 are connected by a sliding base plate 2033, and the sliding base plate 2033 is fixed in the chassis 201; further preferably, in order to achieve locking of left and right displacement, the left and right adjustment mechanism 203 also includes left and right locking knobs 2034, which can be specifically two, and the left and right locking knobs 2034 are passed through the sliding platform 2032 and the sliding base plate 2033. After the left and right positions are adjusted, the left and right locking knobs 2034 are screwed to fix the sliding platform 2032 and the sliding base plate 2033, thereby achieving horizontal locking of the NFC tag detector 206.

[0126] The rotating disk 204 is used to achieve rotational adjustment of the detection position of the NFC tag detector 206 in the horizontal direction. The rotating disk 204 is sleeved onto the other end of the lift adjustment shaft 2021, that is, the bottom of the lift adjustment shaft 2021. In a preferred embodiment, the rotating disk 204 has an opening in the center, through which it is sleeved onto the bottom of the lift adjustment shaft 2021 to achieve a fixed connection between the two. Preferably, the rotating disk 204 can be a cross-roller bearing, which allows the NFC tag detector 206 to rotate 360 ​​degrees, bearing radial and axial loads, thereby achieving rotational adjustment of the detection position of the NFC tag detector 206.

[0127] The rotating disk 205 is used to adjust the tilt angle of the detection surface of the NFC tag detector 206. Figure 14 As shown, the rotating disk 205 is fixedly connected to the rotating disk 204 and is arranged perpendicular to the rotating disk 205. The side of the rotating disk 205 is fixedly connected to the side of the rotating disk 204. In a specific example, the rotating disk 205 specifically includes a fixed disk 2051 and a movable disk 2052. The left side of the fixed disk 2051 is fixedly connected to the rotating disk 204, and the right side of the movable disk 2052 is fixedly connected to the NFC tag detector 206. The contact surfaces of the fixed disk 2051 and the movable disk 2052 are provided with teeth that engage with each other. The fixed disk 2051 and the movable disk 2052 are connected by a rack to realize the rotational connection between the two. It can be understood that the fixed disk 2051 and the movable disk 2052 are driven by the side rack engagement, thereby the NFC tag detector 206 can be rotated 180° by the fixed disk 2051 and the movable disk 2052. That is to say, the movable disk 2052 can realize 180° rotation through the fixed disk 2051, and the NFC tag detector 206 also rotates 180° accordingly, thereby realizing the adjustment of the inclination angle of the detection surface of the NFC tag detector 206.

[0128] The NFC tag detector 206 is fixedly connected to the rotating disk 205 and is arranged above the conveyor belt to verify the tags attached to the materials on the conveyor belt. Specifically, the NFC tag detector 206 may include an RFID tag detection module and an NFC reader / writer module, forming a "physical + data" two-dimensional detection. The RFID tag detection module detects the integrity of the tag antenna through magnetic field coupling, such as whether it is damaged or shifted. The NFC reader / writer module verifies the data format and encryption information, improves the detection coverage rate, and prevents physically damaged tags from flowing into the next process. Furthermore, the RFID tag detection module and the NFC reader / writer module can be integrated into the front detection cabin of the left chassis 2011, and the detection cabin opening faces the production line conveying path to ensure signal coverage.

[0129] In a preferred embodiment, the verification unit further comprises a sensor mechanism 7, combined with Figure 15As shown, dual sensors are used, specifically including an upstream sensor 2071 and a downstream sensor 2072. The upstream sensor 2071 and the downstream sensor 2072 are relatively fixed on the inner wall of the chassis 201. Corresponding sensor openings are provided on the inner wall of the chassis 1. The upstream sensor 2071 and the downstream sensor 2072 realize detection through the sensor openings, thereby ensuring signal stability in complex environments. Further preferably, the dual sensors adopt a redundant design of "upstream trigger-downstream confirmation". Here, the upstream sensor 2071 is a diffuse reflection type with a detection distance of 50-300mm and is responsible for initiating detection; here, the downstream sensor 2072 is a through-beam type with a response time of ≤3ms and is responsible for confirming the passing status of the material. The signals of the two are verified by a logic AND gate, and are only judged to be valid when the dual signals match, thereby reducing the false trigger rate. Furthermore, the sensor protection level reaches IP67, which is suitable for the dusty environment of the workshop. In addition, the dual sensors can be fixed to the incoming material end (upstream) and the outgoing material end (downstream) of the production line through adjustable brackets respectively. The cable of the sensor mechanism 207 can pass through the protective conduit inside the right chassis to connect to the main control board to prevent dust interference.

[0130] In a preferred embodiment, the verification unit also includes a second touch terminal 208, mounted on the chassis 201 and electrically connected to the NFC tag detector 206. Preferably, the second touch terminal 208 is embedded in the operating surface of the main chassis 2012 to enable human-computer interaction. The second touch terminal 208 utilizes an industrial touch screen with an explosion-proof membrane and waterproof rubber ring to adapt to oily workshop environments.

[0131] In a preferred embodiment, the verification unit further includes an emergency stop button, which is integrated into the sides of the left chassis 2011 and the right chassis 2013 and adopts a dual-channel design to simultaneously cut off the main circuit and the control circuit.

[0132] In a preferred embodiment, the verification unit also includes an alarm light 209, which is embedded in the top center of the main housing 2012 and is directly connected to the internal control module via a hard wire. Specifically, the alarm light 209 is directly connected to the control module via a hard wire, and the trigger delay is ≤10ms. The PLC rejection signal adopts optoelectronic isolation output, and the entire process time from detecting the abnormality to the action of the rejection mechanism is compressed to 50ms, which is 80% shorter than the traditional solution, thereby avoiding the omission of abnormal products.

[0133] The above is an introduction to the structure of the verification unit 20 provided in the embodiment of the present invention. Based on the understanding of its structure, its working process is described below.

[0134] First, the NFC tag detector 206 is adjusted in multiple dimensions through a multi-dimensional adjustment mechanism, that is, the height is adjusted through the lifting adjustment mechanism 202, the left and right displacement is adjusted through the left and right adjustment mechanism 203, the rotation is adjusted through the rotating disk 204, and the inclination is adjusted through the rotating disk 205 to ensure that the position of the NFC tag detector 206 meets the detection angle and position of the product tag, and the detection angle and position are accurately adjusted.

[0135] Then, start the device. After the device is started, the upper computer controls the dual sensors to enter the standby state. When the incoming material from the production line passes through the upstream sensor 2071, the detection signal is triggered. The RFID tag detection module and the NFC reader module of the NFC tag detector 206 work together. The RFID tag detection module detects the physical integrity of the tag, such as whether it is damaged or shifted, and the NFC reader module reads the validity of the tag data, such as the data format and check bit. The detection data is transmitted to the host control module in real time. If any indicator is abnormal, the alarm light 209 immediately flashes red at a frequency of 2Hz to warn. At the same time, the control module sends a 24V DC trigger signal to the production line rejection mechanism through the PLC interface to achieve accurate rejection of abnormal products; if the detection is normal, the downstream sensor 2072 receives the material passing signal and completes a single detection closed loop. During this process, the second touch terminal 208 can display the detection data, abnormal records and equipment status in real time, and supports parameter configuration and manual control.

[0136] A verification unit provided by an embodiment of the present invention implements multi-dimensional adjustment of the NFC tag detector through a lifting adjustment mechanism, a left-right adjustment mechanism, a rotating disk, and a turning disk, meeting the detection angle and position of the product tag and accurately adjusting the detection angle and position. The NFC tag detector can achieve dual-dimensional detection of physical and data, thereby comprehensively detecting NFC tags, improving detection coverage, and preventing damaged tags from entering the next process.

[0137] Part 4: Eliminating units.

[0138] Figure 16 A schematic diagram of a culling unit structure provided by an embodiment of the present invention is shown in FIG. Figure 17 A partial cross-sectional diagram of a culling unit provided by an embodiment of the present invention, combined with Figure 16 and Figure 17 As shown, the rejection unit 30 provided in the embodiment of the present invention includes a rejection buffer module and a lifting module; the rejection buffer module is arranged above the conveyor belt, and is used to store materials that are unqualified when detected by the verification unit; the lifting module is fixed on the conveying bracket and is located below the conveyor belt, and is used to lift the unqualified materials to the rejection buffer module. The rejection buffer module and the lifting module are specifically introduced below.

[0139] The reject buffer module, specifically a reject silo 301, is used to store rejected unqualified materials 50. The reject silo 301 is a U-shaped trough structure with a hollowed-out structure at the bottom as the silo entrance. The silo is equipped with multiple reject positions, each capable of storing multiple materials 50, with the first reject position located at the bottom. Preferably, the inner wall of the reject silo 301 is coated with an ultra-high molecular weight polyethylene coating, reducing the friction coefficient from 0.3 to 0.15. This ensures smooth sliding of the materials 50 within the silo, reducing the impact of material 50 jamming on the mechanism.

[0140] The lifting module may specifically include two locking mechanisms 303, a cylinder bracket 304, and a telescopic cylinder 305. The structures of each part are described in detail below.

[0141] Two locking mechanisms 303 are used to lock the material 50 in the rejection bin 301. The locking structure can be specifically an elastic claw. The two locking mechanisms 303 are respectively arranged on both sides of the rejection bin 301 and integrated at the bin entrance to lock the material 50 in the first rejection bin position. In a specific example, the elastic claw includes a fixed end and an elastic end. The fixed end is fixed on the side wall of the rejection bin 301, and the elastic end is connected to the material. It retracts when the material comes and pops out after the material comes, thereby achieving locking of the material 50. It can be understood that when the material 50 is lifted to the first rejection bin position, the elastic claw automatically retracts. When the material 50 reaches the first rejection bin position, the elastic claw pops out to lock the material 50 in the first rejection bin position.

[0142] In a preferred embodiment, the opening angle of the elastic claw is designed to be 30°±5°, thereby achieving adaptive locking of the material 50. When the claw initially opens at a 35° angle (greater than the cross-sectional dimensions of the material 50), the material 50 enters, squeezing the claw and deforming it. Once in position, the claw elastically returns to its original position with a restoring force ≥8N, forming a mechanical lock and preventing the material 50 from escaping during dynamic rejection. Furthermore, preferably, the mechanical self-locking force of the locking mechanism 303 is ≥5N.

[0143] In a preferred embodiment, the locking mechanism 303 includes a positioning shaft 3031, a clamping plate 3032, a spring 3033 and a cover plate 3034; wherein the cover plate 3034 is buckled on the outside of the positioning shaft 3031, the clamping plate 3032 and the spring 3033, and is fixed to the side wall of the rejection bin 301; the top of the clamping plate 3032 is fixed to the side wall of the rejection bin 301 through the positioning shaft 3031, and the clamping plate 3032 can rotate around the positioning shaft 3031, thereby achieving the entry and locking of the material 50; a claw is provided at the bottom of the clamping plate 3032, and the claw and the cover plate 3034 are connected by a spring 3033; the top of the clamping plate 3032 is fixed to the side wall of the rejection bin 301 through the positioning shaft 3031; a claw is provided at the bottom of the clamping plate 3032, and the claw and the cover plate 3034 are connected by a spring 3033, for achieving the locking of the material 50. Specifically, when the material 50 enters the first rejection bin, the claw retracts under the action of the material 50, the claw rotates toward the rejection bin 301, and the spring 3033 is compressed; when the material 50 is in place, the spring 3033 resets, the claw rotates away from the rejection bin 301, and the claw pops out under the action of the spring 3033 to lock the material 50.

[0144] Cylinder bracket 304, combined Figure 18 As shown, it is fixed on the conveying bracket 401 and is located below the conveyor belt 402, and is used to fix the telescopic cylinder 305. In a specific example, the cylinder bracket 304 is made of cast steel in one piece and is rigidly connected to the conveying bracket 401 through a T-slot to ensure that the installation verticality of the telescopic cylinder 305 is ≤0.05mm, providing basic support for the high-precision movement of the conveying bracket 308. Preferably, the bottom of the cylinder bracket 304 is connected to the conveying bracket 308 through an elastic vibration isolation pad, and anti-torsion reinforcement ribs are set on the side of the cylinder bracket 304 to ensure that the vibration transmission rate of the cylinder during operation is ≤15%. After cyclic testing, the coaxiality deviation of the cylinder is ≤0.1mm, which solves the problem of mechanical fatigue under high-frequency movement.

[0145] The telescopic cylinder 305 is fixed to the cylinder bracket 304 and located below the silo entrance. It is used to push the unqualified material 50 to the rejection silo 301. Specifically, upon receiving the push command, the telescopic cylinder 305 extends, passes through the hollow area of ​​the conveyor belt 402, and pushes the material 50 on the conveyor belt 402 to the first rejection bin. After reaching the push stroke, it retracts and returns to its original position. Preferably, the telescopic cylinder 305 adopts a buffer structure, which buffers the return of the telescopic cylinder 305 after it reaches the pushed position.

[0146] In a preferred embodiment, the rejection unit further includes a silo detection sensor 302 and an incoming material sensor 306, which are described in detail below.

[0147] The silo detection sensor 302 is arranged above the inner side wall of the U-shaped trough, that is, the top of the rejection silo 301, to monitor the height of the material 50 in the rejection silo 301. Optionally, the silo detection sensor 302 is a diffuse reflection photoelectric sensor to monitor the full load status of the silo in real time. In a preferred embodiment, the silo detection sensor 302 adopts a volume gradient detection algorithm: the silo is divided into 10 detection intervals, and an analog signal of the stacking height of the material 50 is output in real time; when the silo volume utilization rate reaches 85%, the system triggers a first-level warning with sound and light prompts; when the silo volume utilization rate reaches 90%, a second-level warning is triggered, and the rejection action is forced to be suspended. The warning response time is ≤100ms, which solves the risk of loss of control when the silo is full.

[0148] The incoming material sensor 306 is mounted on the conveyor support 401 and located in front of the reject bin 301 to monitor unqualified incoming material on the conveyor belt 402. Preferably, the incoming material sensor 306 is embedded in a detection slot on the side of the conveyor belt 402. The detection surface of the incoming material sensor 306 is flush with the conveying surface of the material 50, ensuring accurate identification of the position of the material 50.

[0149] The host computer is electrically connected to the silo detection sensor 302 , the telescopic cylinder 305 and the incoming material sensor 306 , and controls the silo detection sensor 302 , the telescopic cylinder 305 and the incoming material sensor 306 .

[0150] The above is an introduction to the structure of the rejection unit 30 provided in this embodiment. Based on the understanding of its structure, its working process is described below, which is mainly divided into the following processes:

[0151] Trigger logic: After the host computer front-end detects the rejection signal of the system, the detection mode of the incoming material sensor is triggered according to the rejection signal. When the material is transported to the detection area of ​​the incoming material sensor, the incoming material sensor outputs an NPN level signal (response time ≤ 5ms) to report to the host computer. The host computer generates a lifting signal to trigger the telescopic cylinder to extend.

[0152] Rejection execution: The telescopic cylinder adopts a servo control module (stroke accuracy ±0.1mm) to push the material at a speed of 50mm / s, pushing the material off the conveyor belt and into the range of the elastic claws of the locking mechanism. The elastic claws of the locking mechanism are mechanically locked by the weight of the material (locking force ≥5N), ensuring that the material is stably stored in the rejection hopper.

[0153] Reset and monitoring: After the telescopic cylinder is pushed into place, the travel switch feedback signal, the upper computer controls the telescopic cylinder to retract, and immediately returns to its original position at a reverse speed of 200mm / s. At the same time, the silo detection sensor is controlled to monitor the material height in the rejection silo in real time. When the material is higher than the maximum inventory height, an analog signal (4-20mA) is output to send an early warning signal to the upper computer.

[0154] An embodiment of the present invention provides a rejection unit, which realizes precise lifting of incoming materials through the cooperation of a telescopic cylinder and an incoming material sensor. The locking structure adopts gravity self-locking elastic claws to realize automatic locking of the buffered materials, thereby avoiding problems such as stacking, jamming, and monitoring lag during the production process.

[0155] In summary, the embodiment of the present invention provides an NFC tag labeling production line system, which includes a conveying unit, a feeding unit, a labeling unit, a verification unit, a rejection unit and a host computer. Through the coordinated control of the clamping cylinder and the limit cylinder of the feeding unit, the material feeding position deviation and the stacking rate are reduced, and the single feeding accuracy and production efficiency are improved; the double-direction guide rail and the threaded pair locking mechanism of the high and low hovering mechanism of the labeling unit are used to achieve the smooth lifting and lowering of the labeling equipment, and the coordinated effect of the paper guide mechanism and the label writing mechanism is combined to achieve the precise transportation, data writing and labeling operation of the label, thereby improving the success rate of label reading, writing and labeling; Yuan's multi-dimensional adjustment mechanism realizes multi-dimensional adjustment of NFC tag detectors to meet the detection angle and position of product tags, and accurately adjusts the detection angle and position; the NFC tag detector can realize physical and data dual-dimensional detection, thereby comprehensively detecting NFC tags, improving the detection coverage rate, and preventing damaged tags from flowing into the next process; the telescopic cylinder of the rejection unit and the incoming material sensor are coordinated to achieve precise lifting of incoming materials, and the locking structure adopts gravity self-locking elastic claws to realize automatic locking of cached materials, avoiding problems such as stacking, jamming, and monitoring lag in the production process, thereby comprehensively improving the production efficiency of the production line system.

[0156] In the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0157] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0158] Throughout this specification, terms such as "a specific embodiment," "some embodiments," or "an embodiment" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0159] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A production line system for NFC tag labeling, characterized in that: The NFC tag labeling production line system includes a transmission unit, a feeding unit, a labeling unit, a verification unit, a rejection unit and a host computer; wherein, The conveying unit includes a conveying bracket and a conveyor belt. The conveying bracket is used to fix the feeding unit, labeling unit, verification unit, rejection unit and host computer; the conveyor belt is set on the conveying bracket and is used to transport the material, so that the material transportation process passes through the feeding unit, labeling unit, verification unit and rejection unit in sequence; The feeding unit includes a storage module and a delivery module. The storage module is used to store materials. The delivery module is arranged at the bottom of the storage module and is used to control the delivery of materials in the storage module. The delivered materials are transmitted to the labeling unit via the conveyor belt. The labeling unit is used to attach the NFC tag to the material, and the labeled material is transmitted to the verification unit via the conveyor belt; The verification unit is used to inspect the NFC tag on the material, and the inspected material is transmitted to the rejection unit; The rejection unit includes a rejection buffer module and a lifting module; the rejection buffer module is arranged above the conveyor belt and is used to store materials that are unqualified by the verification unit; the lifting module is fixed to the conveyor bracket and is located below the conveyor belt, and is used to lift the unqualified materials to the rejection buffer module; The host computer is electrically connected to the conveying unit, the feeding unit, the labeling unit, the verification unit, and the rejection unit; When the production line system is working, the host computer controls the feeding unit to feed the material onto the conveyor belt, and the conveyor belt transports the material to the labeling unit. The host computer controls the labeling unit to label the material, and then transmits it to the verification unit via the conveyor belt. The host computer controls the verification unit to inspect the label on the material, and generates a test result and sends it to the host computer. The inspected material is transmitted to the rejection unit via the conveyor belt; when the host computer receives an unqualified test result, it generates a rejection signal and sends it to the rejection unit, and the rejection unit rejects the incoming material according to the rejection signal.

2. The NFC tag labeling production line system according to claim 1, characterized in that: The storage module is a U-shaped trough structure with a discharge port at the bottom. The storage module is provided with N positions, the Nth position is located at the top of the storage module, and the first position is located at the bottom of the storage module; The delivery module includes two clamping cylinders and two limiting cylinders; wherein, the two clamping cylinders are respectively arranged on both sides of the second bin, and the clamping cylinders realize clamping and releasing of the material in the second bin by extending and retracting the clamping piston rod; the two limiting cylinders are respectively arranged below the two clamping cylinders and located above the discharge port of the storage module, and the limiting cylinders realize locking and delivery of the material in the first bin by extending and retracting the limiting piston rod.

3. The NFC tag labeling production line system according to claim 2, characterized in that: The feeding unit also includes a bin position detection sensor and a feeding sensor; Among them, the bin detection sensor is arranged on the inner side of the U-shaped trough side wall and is located above the Nth bin to monitor the material height in the storage module; The feeding sensor is arranged at the first bin to monitor the status of the first bin.

4. The NFC tag labeling production line system according to claim 3, characterized in that: When the material storage module is being loaded, the upper computer controls the limit cylinder to be in an extended state, locks the material in the first bin, and controls the clamping cylinder to be in a retracted state. At the same time, the bin detection sensor monitors the material height in the material storage module in real time. When the material is lower than the minimum inventory height, a refill warning signal is sent to the upper computer. When feeding, the upper computer controls the clamping cylinder to be in an extended state to lock the material in the second bin, and then controls the limit cylinder to be in a retracted state to release the material in the first bin to the feeding station, thereby completing a single feeding; When the feeding sensor detects that there is no material in the first bin, it generates a material unloading signal and sends it to the upper computer. The upper computer controls the limit cylinder to be in an extended state and controls the clamping cylinder to be in a retracted state. As a result, the material in the second bin is released to the first bin and locked by the limit cylinder, and the cycle continues.

5. The NFC tag labeling production line system according to claim 1, characterized in that: The labeling unit includes a high and low hovering mechanism, a device main body mechanism, a label writing mechanism and a material receiving mechanism; wherein, The high and low hovering mechanism includes a fixed seat, a transmission rod and a sliding mounting block; wherein the transmission rod is fixed to the fixed seat, and the sliding mounting block is arranged on the transmission rod and can move up and down along the transmission rod; The main body of the device is fixed on the height-low hovering mechanism, and the height is adjusted by the height-low hovering mechanism; The label writing mechanism is fixed on the main body of the device and includes an NFC reading and writing dual antenna, an NFC reader / writer, an adjustment plate and a label peeling module; wherein, the NFC reader / writer and the NFC reading and writing dual antenna are installed on the adjustment plate, the NFC reader / writer generates label data, and the NFC reading and writing dual antenna writes the label data into the label on the label tape; the label peeling module is arranged at the end of the adjustment plate, peels off the label on the label tape, and the peeled label is pasted on the product, and the peeled backing paper tape is conveyed to the receiving mechanism.

6. The NFC tag labeling production line system according to claim 1, characterized in that: The verification unit includes a chassis, a multi-dimensional adjuster and an NFC tag detector; wherein, The chassis is fixed on a conveying bracket of the production line; The multi-dimensional adjuster is installed in the chassis and is used to perform multi-dimensional adjustment on the NFC tag detector; The NFC tag detector is fixedly connected to the multi-dimensional adjuster and is arranged above the conveyor belt to verify the tags attached to the materials on the conveyor belt. The NFC tag detector includes an RFID tag detection module and an NFC reader / writer module. The RFID tag detection module detects the integrity of the tag antenna through magnetic field coupling; the NFC reader / writer module verifies the data format and encryption information.

7. The NFC tag labeling production line system according to claim 6, characterized in that: The multi-dimensional adjuster includes a lifting adjustment mechanism, a left-right adjustment mechanism, a rotating disk and a rotating disk; wherein, The lifting adjustment mechanism includes a lifting adjustment shaft and a lifting locking sleeve; wherein one end of the lifting adjustment shaft is fixed to the top of the chassis; and the lifting locking sleeve is sleeved on the lifting adjustment shaft; The left-right adjustment mechanism includes a sliding track and a sliding platform; wherein, the two ends of the sliding track are fixed to the inner wall of the chassis and are arranged perpendicular to the lifting adjustment shaft; the sliding platform is fixedly connected to the lifting locking sleeve, and the bottom of the sliding platform is provided with a sliding block, which is slidably mounted on the sliding track; The rotating disk is sleeved on the other end of the lifting adjustment shaft; The rotating disk is fixedly connected to the rotary disk and is arranged perpendicular to the rotating disk.

8. The NFC tag labeling production line system according to claim 1, characterized in that: The reject buffer module is a reject silo, which is a U-shaped trough structure with a silo entrance at the bottom. The reject silo is provided with multiple reject positions, and the first reject position is located at the bottom of the silo; The lifting module includes two locking mechanisms, a cylinder bracket, and a telescopic cylinder; The two locking mechanisms are elastic claws, and the two locking mechanisms are respectively arranged on both sides of the rejection bin to lock the material in the first rejection bin; The cylinder support is fixed on the conveying support and is located below the conveyor belt; The telescopic cylinder is fixed on the cylinder bracket and is located below the silo entrance. The telescopic cylinder is extended to push the material on the conveyor belt to the first rejection position.

9. The NFC tag labeling production line system according to claim 8, characterized in that: The rejection unit also includes a silo detection sensor and an incoming material sensor; wherein, The silo detection sensor is arranged above the inner side of the U-shaped trough body side wall to monitor the material height in the rejection silo; The incoming material sensor is arranged on the conveying bracket to monitor the incoming material on the conveyor belt.

10. The NFC tag labeling production line system according to claim 9, characterized in that: The host computer triggers the detection mode of the incoming material sensor according to the rejection signal. When the material is transported to the detection area of ​​the incoming material sensor, the incoming material sensor reports to the host computer, and the host computer generates a lifting signal to control the extension of the telescopic cylinder, pushing the material on the conveyor belt off the conveyor belt and into the locking mechanism. The elastic claws of the locking mechanism are mechanically locked by the dead weight of the material; After the telescopic cylinder is pushed into place, the host computer controls the telescopic cylinder to retract, and at the same time controls the silo detection sensor to monitor the height of the material in the rejection silo. When the material is higher than the maximum inventory height, an early warning signal is sent to the host computer.

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