A printer capable of automatically and accurately identifying RFID bar codes

By integrating RFID components into the front paper tray cover of the printer and using ferrite soft magnetic materials for electromagnetic shielding, the problems of high cost and susceptibility to signal interference in RFID printers are solved, achieving more stable and accurate RFID reading and printing results.

CN119099230BActive Publication Date: 2025-12-26珠海恒盛条码设备有限公司
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Patent Information

Application Number
CN202411597004.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-12-26
Estimated Expiration
2044-11-11

AI Technical Summary

Technical Problem

Existing RFID printers are expensive and sensitive to the environment in which they are used. Their signals are easily interfered with, leading to reading failures or data errors, which affects printing quality and accuracy.

Method used

An RFID component, including an RFID transmitter and receiver, is integrated into the front paper tray cover of the printer. Electromagnetic shielding is achieved using plastic parts containing ferrite soft magnetic material, the signal transmission path is optimized, and heat dissipation measures are taken to prevent overheating, ensuring the stability and accuracy of data transmission.

Benefits of technology

It reduces the production cost of printers, improves the stability and anti-interference ability of signal transmission, and enhances the accuracy of RFID reading and printing efficiency.

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Abstract

The application provides a printer capable of automatically and accurately identifying an RFID barcode, comprising a lower mechanism of the printer, an upper mechanism of the printer, a printing assembly, a rubber roller, a front paper supporting cover, wherein the front paper supporting cover is arranged at intervals from the rubber roller, the front paper supporting cover is a plastic part containing a ferrite soft magnetic substance, an RFID assembly is assembled integrally with the front paper supporting cover, the RFID assembly is arranged inside the front paper supporting cover and towards the side of the rubber roller, the RFID assembly is configured to generate a data receiving area, and the interval between the front end of the front paper supporting cover and the vertical cutting plane of the rubber roller is between 2-2.5 mm. The RFID assembly is assembled integrally on the front paper supporting cover and can be detachably installed on the paper outlet at the front end of the lower mechanism of the printer. The front paper supporting cover has a simple structure, the RFID receiver is clamped and fixed on the inner wall of the top of the clamping column and the positioning frame, the RFID transmitter is installed and fixed in the interior of the front paper supporting cover through the heat dissipation aluminum block, the installation is convenient and the structure is simple, and the production cost can be reduced, thereby reducing the cost of the printer.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of printers, and particularly relates to a printer capable of automatically and accurately identifying RFID bar codes. BACKGROUND

[0002] A printer is an electronic device that converts data from a computer or other digital device into visual text or images, usually output on paper. Printers are one of the most common office automation devices in offices and homes, used for printing documents, reports, pictures, etc.

[0003] Traditional RFID printers have the following multiple shortcomings.

[0004] First, the cost is high; the price of an RFID printer is usually higher than that of a traditional bar code printer, mainly because it integrates complex RFID radio frequency modules (including transmitters and receivers), control units, and reader antennas and other components. These components increase the production cost, making the RFID printer more expensive. The design of the installation structure of the traditional RFID components is also complex, which makes the overall printer more expensive.

[0005] Second, sensitive to the use environment; although RFID tags have better durability and anti-pollution ability than bar codes, in some specific environments (such as near metal or liquid), RFID signals may be disturbed, resulting in reading failure or data error. This limits the application of RFID printers in certain scenarios to some extent, and also causes signal instability, affecting printing effect and accuracy.

[0006] To this end, we propose a new printer capable of automatically and accurately identifying RFID, which solves the shortcomings of the prior art. SUMMARY

[0007] The present application aims to provide a printer capable of automatically and accurately identifying RFID bar codes to solve the problems raised in the background art.

[0008] Therefore, the present application provides a printer capable of automatically and accurately identifying RFID bar codes, comprising:

[0009] a lower mechanism of the printer;

[0010] an upper mechanism of the printer, reversibly connected between the lower mechanism of the printer;

[0011] a printing assembly provided at the bottom front end of the upper mechanism of the printer;

[0012] a rubber roller rotatably provided at the bottom front end of the lower mechanism of the printer and corresponding to the printing assembly in an up-down manner, with paper passing between the printing assembly and the rubber roller;

[0013] A front paper supporting cover is detachably installed at the paper outlet on the front side of the lower mechanism of the printer, and is spaced apart from the rubber roller, the front paper supporting cover being a plastic part containing a ferrite soft magnetic substance;

[0014] An RFID assembly is assembled integrally with the front paper supporting cover, and is disposed inside the front paper supporting cover and toward the rubber roller side, the RFID assembly being configured to generate a data receiving area, the top horizontal surface of the generated data receiving area being attached to the inner lower surface of the front paper supporting cover, and the spacing between the front end vertical cut surface of the front paper supporting cover and the rubber roller being between 2-2.5 mm.

[0015] In a further embodiment of the present application, the RFID assembly includes an RFID transmitter and an RFID receiver, the RFID transmitter being connected and installed inside the front end of the front paper supporting cover, the RFID receiver being connected and disposed inside the upper end of the front paper supporting cover, and the RFID receiver being located above the RFID transmitter and being configured to achieve data transmission.

[0016] In a further embodiment of the present application, the front paper supporting cover includes a positioning frame formed at the rear portion thereof, the positioning frame being in the form of a rectangular frame structure, the rear portion of the front paper supporting cover further protruding a clamping column, and the RFID receiver being fixedly clamped to the inner wall at the top of the clamping column and the positioning frame.

[0017] In a further embodiment of the present application, a heat dissipation aluminum block and a heat dissipation silicone grease are further included, the RFID transmitter being locked and fixed inside the front paper supporting cover together with the heat dissipation aluminum block by means of a screw, and the heat dissipation silicone grease being disposed between the RFID transmitter and the heat dissipation aluminum block.

[0018] In a further embodiment of the present application, clamping blocks are provided at both sides of the positioning frame, clamping grooves are provided at both sides of the paper outlet on the upper mechanism of the printer, and the front paper supporting cover is connected by clamping connection of the clamping blocks and the clamping grooves.

[0019] In a further embodiment of the present application, the upper end surface of the front paper supporting cover includes protruding guide strips, the guide strips being provided in plurality and being arranged in parallel at equal intervals.

[0020] In a further embodiment of the present application, the RFID transmitter is vertically disposed, the RFID receiver is horizontally disposed, and the RFID transmitter transmits tag data to the RFID receiver to form a data receiving area.

[0021] The further embodiment of the present application is that the front end of the printer lower mechanism is further provided with a limiting plate opposite to the front paper stop cover, the limiting plate is provided with a plurality of limiting plates, the front end faces of the plurality of limiting plates abut against the front paper stop cover, and the adjacent limiting plates form a signal data strengthening space, and in the process that the signal data is transmitted from the RFID transmitter to the RFID receiver, the signal data is reflected through the signal data strengthening space and the label data is configured to be visualized to the rubber roller.

[0022] The beneficial effects of the present application are:

[0023] Firstly, the present application can reduce the production cost and the printer cost by integrating the RFID assembly on the front paper stop cover and detachably installing the front paper stop cover on the paper outlet of the front end of the printer lower mechanism, the front paper stop cover has a simple structure, the RFID receiver is clamped and fixed on the inner wall of the top of the positioning frame, the RFID transmitter is installed and fixed in the inside of the front paper stop cover through the heat dissipation aluminum block, the installation is convenient and the structure is simple.

[0024] The front paper stop cover is a plastic part containing a ferrite soft magnetic material, has good electromagnetic shielding performance, and can reduce the interference when the external metal or other electronic products are close to the front paper stop cover in the process of information data transmission of the RFID assembly, thereby improving the anti-interference performance and the stability of signal transmission.

[0025] The distance between the inner side of the front paper stop cover and the vertical cutting surface of the front end of the rubber roller is set to be between 2-2.5 mm, thereby improving the accuracy of the RFID reading value, and improving the printing efficiency and the printing quality. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall structure diagram of the printer of the present application Figure One ;

[0027] Figure 2 It is the overall structure diagram of the printer of the present application Figure Two ;

[0028] Figure 3 It is the installation explosion structure diagram of the front paper stop cover and the RFID assembly

[0029] Figure 4 It is Figure 3 the enlarged diagram of K position in

[0030] Figure 5 It is the structure diagram of the front paper stop cover. DETAILED DESCRIPTION

[0031] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0032] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0033] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0034] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0035] It should be noted that in this application, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted, or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0036] Because the existing printer flat plate accessory needs to be clamped during processing, and the periphery needs to be processed, etc., the negative pressure chuck currently used can achieve pre-tightening of the flat plate accessory. However, because continuous water spraying is needed to cool the flat plate accessory during processing, and air blowing is also needed to blow away debris, the clamping force is not enough from the normal pre-tightening force of one side of the flat plate accessory, and there is a high probability of clamping failure. Moreover, when the edge of the flat plate accessory needs to be chamfered, the angle of the tool must be changed to achieve the processing, which has great limitations.

[0037] Embodiment 1

[0038] The embodiment provides a printer capable of automatically and accurately identifying an RFID barcode, comprising:

[0039] A lower mechanism 1 of the printer;

[0040] An upper mechanism 2 of the printer, which is reversibly connected between the lower mechanism 1 of the printer;

[0041] A printing assembly 3 arranged at the bottom front end of the upper mechanism 2 of the printer;

[0042] A rubber roller 4 rotatably arranged at the bottom front end of the lower mechanism 1 of the printer and corresponding to the printing assembly 3, wherein paper passes between the printing assembly 3 and the rubber roller 4;

[0043] A front supporting paper cover 5 detachably installed at the paper outlet of the front side of the lower mechanism 1 of the printer, wherein the front supporting paper cover 5 is arranged in a spaced manner with the rubber roller 4, and the front supporting paper cover 5 is a plastic part containing a ferrite soft magnetic substance;

[0044] The RFID assembly is assembled with the front paper cover 5, and the RFID assembly is located inside the front paper cover 5 and is arranged towards the side of the rubber roller 4. The RFID assembly is configured to generate a data receiving area. The top horizontal surface of the generated data receiving area is attached to the inner lower surface of the front paper cover 5.

[0045] The RFID assembly includes an RFID transmitter 6 and an RFID receiver 7. The RFID transmitter 6 is connected and installed at the front end inside the front paper cover 5. The RFID receiver 7 is connected and arranged at the upper end inside the front paper cover 5. The RFID receiver 7 is located above the RFID transmitter 6 and can achieve data transmission configuration. The label can be visualized and printed on the label paper.

[0046] Specifically, the front paper cover 5 includes a positioning frame 50 formed at the rear portion thereof. The positioning frame 50 has a rectangular frame structure. The rear portion of the front paper cover 5 further has a clamping column 51 protruding therefrom. The RFID receiver 7 is fixedly clamped to the inner wall at the top of the clamping column 51 and the positioning frame 50. The front paper cover 5 further includes a heat dissipation aluminum block 8 and heat dissipation silicone grease 9. The RFID transmitter 6 is fixedly locked inside the front paper cover 5 by means of a screw and the heat dissipation aluminum block 8. The heat dissipation silicone grease 9 is arranged between the RFID transmitter 6 and the heat dissipation aluminum block 8. The heat dissipation aluminum block 8 and the heat dissipation silicone grease 9 can improve the heat dissipation effect, thereby preventing overheating during work and affecting data transmission. The upper end surface of the front paper cover 5 includes protruding guide strips 52. The guide strips 52 are arranged in multiple numbers and are arranged in parallel at equal intervals. The positioning frame 50 has clamping blocks 53 arranged at both sides thereof. The lower mechanism 1 of the printer has clamping grooves 10 arranged at both sides of the paper outlet. The front paper cover 5 is connected by clamping the clamping blocks 53 and the clamping grooves 10. The RFID transmitter 6 is arranged vertically. The RFID receiver 7 is arranged horizontally. The RFID transmitter 6 transmits label data to the RFID receiver 7 to form a data receiving area. Therefore, in this embodiment, the RFID assembly is integrated on the front paper cover 5 and can be detachably connected to the front end of the paper outlet of the lower mechanism 1 of the printer. The front paper cover 5 has a simple structure. The RFID receiver 7 is clamped and fixed to the inner wall at the top of the clamping column 51 and the positioning frame 50. The RFID transmitter 6 is fixedly installed inside the front paper cover 5 by means of the heat dissipation aluminum block 8. The installation is convenient and the structure is simple. The production cost can be reduced, thereby reducing the cost of the printer.

[0047] In this embodiment, the front paper cover 5 is a plastic part containing a ferrite soft magnetic material and has good electromagnetic shielding performance. During the information data transmission process of the RFID assembly, the front paper cover 5 can reduce the interference when the external metal or other electronic products are close, thereby improving the anti-interference performance and the stability of signal transmission.

[0048] Embodiment 2

[0049] A printer capable of automatically and accurately identifying RFID bar code, comprising:

[0050] A lower mechanism 1 of the printer;

[0051] An upper mechanism 2 of the printer, reversely connected between the lower mechanism 1 of the printer;

[0052] A printing assembly 3, arranged at the bottom front end of the upper mechanism 2 of the printer;

[0053] A rubber roller 4, rotatably arranged at the bottom front end of the lower mechanism 1 of the printer and corresponding to the printing assembly 3 in up and down directions, and paper passes between the printing assembly 3 and the rubber roller 4;

[0054] A front supporting paper cover 5, detachably installed at the paper outlet of the front side of the lower mechanism 1 of the printer, and the front supporting paper cover 5 is arranged in a spaced manner with the rubber roller 4, and the front supporting paper cover 5 is a plastic part containing a soft magnetic material of ferrite;

[0055] An RFID assembly, assembled integrally with the front supporting paper cover 5, and the RFID assembly is arranged inside the front supporting paper cover 5 and towards the side of the rubber roller 4, and the RFID assembly is configured to generate a data receiving area, and the top horizontal surface of the generated data receiving area is attached to the inner lower surface of the front supporting paper cover 5.

[0056] The RFID assembly comprises an RFID transmitter 6 and an RFID receiver 7, the RFID transmitter 6 is connected and installed at the front end inside the front supporting paper cover 5, the RFID receiver 7 is connected and arranged at the upper end inside the front supporting paper cover 5, and the RFID receiver 7 is located above the RFID transmitter 6 and can realize data transmission configuration, and the label can be visualized and printed on the label paper.

[0057] Specifically, the front paper stop cover 5 includes a positioning frame 50 formed on the rear portion thereof, the positioning frame 50 is in a rectangular frame structure, the rear portion of the front paper stop cover 5 further protrudes a clamping column 51, the RFID receiver 7 is fixedly clamped on the inner wall of the top of the clamping column 51 and the positioning frame 50, and further includes a heat dissipation aluminum block 8 and a heat dissipation silicone grease 9, the RFID transmitter 6 is fixedly locked in the interior of the front paper stop cover 5 together with the heat dissipation aluminum block 8 through a screw, and the heat dissipation silicone grease 9 is arranged between the RFID transmitter 6 and the heat dissipation aluminum block 8, the heat dissipation effect can be improved through the heat dissipation aluminum block 8 and the heat dissipation silicone grease 9 together, so as to prevent the data transmission from being affected by overheating during work, the upper end surface of the front paper stop cover 5 includes protruding guide strips 52, the guide strips 52 are arranged in plurality and are arranged in parallel at equal intervals, clamping blocks 53 are arranged on the two sides of the positioning frame 50, clamping grooves 10 are arranged on the two sides of the paper outlet of the lower mechanism 1 of the printer, the front paper stop cover 5 is connected through the clamping blocks 53 and the clamping grooves 10, the RFID transmitter 6 is vertically arranged, and the RFID receiver 7 is horizontally arranged, the RFID transmitter 6 transmits tag data to the RFID receiver 7 to form a data receiving area, therefore, the RFID components are integrated on the front paper stop cover 5 in the embodiment and can be detachably arranged on the paper outlet at the front end of the lower mechanism 1 of the printer, the structure of the front paper stop cover 5 is simple, the RFID receiver 7 is clamped and fixed on the inner wall of the top of the clamping column 51 and the positioning frame 50, the RFID transmitter 6 is fixedly installed in the interior of the front paper stop cover 5 through the heat dissipation aluminum block 8, the installation is convenient and the structure is simple, the production cost can be reduced comprehensively, so as to reduce the cost of the printer.

[0058] In addition, in the embodiment, the front paper stop cover 5 is a plastic part containing a ferrite soft magnetic material, has good electromagnetic shielding performance, and can reduce the interference when the external metal or other electronic products is close to the front paper stop cover 5 during the information data transmission of the RFID components, so as to improve the anti-interference performance and the stability of signal transmission.

[0059] In the embodiment, the spacing between the front end of the front paper stop cover 5 and the vertical cutting plane of the rubber roller 4 is between 2-2.5 mm, so as to improve the accuracy of RFID reading value, and improve the printing efficiency and printing quality.

[0060] Embodiment 3

[0061] An automatic precise identification RFID barcode printer, comprising:

[0062] a lower mechanism 1 of the printer;

[0063] an upper mechanism 2 of the printer, which is reversibly connected between the lower mechanism 1 of the printer;

[0064] a printing assembly 3 arranged at the front end of the bottom of the upper mechanism 2 of the printer;

[0065] Rubber roller 4, rotatingly arranged at the front end of the bottom of the printer lower mechanism 1 and corresponding to the printing assembly 3, and the paper passes between the printing assembly 3 and the rubber roller 4;

[0066] Front supporting paper cover 5, detachably mounted at the paper outlet of the front side of the printer lower mechanism 1, and the front supporting paper cover 5 is arranged in the interval of the rubber roller 4, and the front supporting paper cover 5 is a plastic part containing a soft magnetic substance of ferrite;

[0067] RFID assembly, assembled integrally with the front supporting paper cover 5, and the RFID assembly is arranged inside the front supporting paper cover 5 and towards the side of the rubber roller 4, and the RFID assembly is configured to generate a data receiving area, and the top horizontal surface of the generated data receiving area is attached to the inner lower surface of the front supporting paper cover 5.

[0068] The RFID assembly includes an RFID transmitter 6 and an RFID receiver 7, the RFID transmitter 6 is connected and mounted at the front end of the inside of the front supporting paper cover 5, the RFID receiver 7 is connected and arranged at the upper end of the inside of the front supporting paper cover 5, and the RFID receiver 7 is located above the RFID transmitter 6 and can realize data transmission configuration, and the label visualization is printed on the label paper.

[0069] Specifically, the front paper stop cover 5 includes a positioning frame 50 formed on the rear portion thereof, the positioning frame 50 is in a rectangular frame structure, the rear portion of the front paper stop cover 5 further protrudes a clamping column 51, the RFID receiver 7 is fixedly clamped on the inner wall of the top of the clamping column 51 and the positioning frame 50, and further includes a heat dissipation aluminum block 8 and a heat dissipation silicone grease 9, the RFID transmitter 6 is fixedly locked in the interior of the front paper stop cover 5 together with the heat dissipation aluminum block 8 through screws, and the heat dissipation silicone grease 9 is arranged between the RFID transmitter 6 and the heat dissipation aluminum block 8, the heat dissipation effect can be improved through the heat dissipation aluminum block 8 and the heat dissipation silicone grease 9 together, so as to prevent overheating during work from affecting data transmission, the upper end surface of the front paper stop cover 5 includes protruding guide strips 52, the guide strips 52 are arranged in plurality and are arranged in parallel at equal intervals, clamping blocks 53 are arranged on the two sides of the positioning frame 50, clamping grooves 10 are arranged on the two sides of the paper outlet of the lower mechanism 1 of the printer, the front paper stop cover 5 is connected through clamping of the clamping blocks 53 and the clamping grooves 10, the RFID transmitter 6 is vertically arranged, and the RFID receiver 7 is horizontally arranged, the RFID transmitter 6 transmits tag data to the RFID receiver 7 to form a data receiving area, therefore, the RFID components are integrated on the front paper stop cover 5 in this embodiment, and the front paper stop cover 5 can be detachably arranged on the paper outlet at the front end of the lower mechanism 1 of the printer, the structure of the front paper stop cover 5 is simple, the RFID receiver 7 is clamped and fixed on the inner wall of the top of the clamping column 51 and the positioning frame 50, the RFID transmitter 6 is fixedly installed in the interior of the front paper stop cover 5 through the heat dissipation aluminum block 8, the installation is convenient and the structure is simple, the production cost can be reduced comprehensively, and the cost of the printer is reduced.

[0070] In addition, in this embodiment, the front paper stop cover 5 is a plastic part containing a ferrite soft magnetic material, has good electromagnetic shielding performance, and can reduce interference when an external metal or other electronic product is close during information data transmission of the RFID components, thereby improving anti-interference performance and signal transmission stability.

[0071] In this embodiment, the spacing between the front end of the front paper stop cover 5 and the vertical cutting plane of the rubber roller 4 is between 2-2.5 mm, thereby improving the accuracy of RFID reading values, and improving printing efficiency and printing quality.

[0072] The front end of the lower mechanism 1 of the printer further includes limiting plates 11 opposite to the front paper stop cover 5, the limiting plates 11 are arranged in plurality, the front end surfaces of the limiting plates 11 abut against the front paper stop cover 5 in cooperation, and the limiting plates 11 form signal data strengthening spaces between adjacent limiting plates 11, during the process that the RFID transmitter 6 transmits signal data to the RFID receiver 7, the signal data is reflected in the signal data strengthening spaces and agrees to visually configure tag data to the rubber roller 4, therefore, information data loss can be better avoided, and the data security of printing is improved comprehensively.

[0073] The embodiments of the present application are described above with reference to the accompanying drawings, and the embodiments and features in the present application can be combined with each other without conflict, and the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection of the present application.

Claims

1. A printer for automatically and accurately identifying an RFID barcode, characterized by, It comprises: printer lower mechanism; printer upper mechanism, which is connected with the printer lower mechanism by turning; printing assembly, which is arranged at the bottom of the printer upper mechanism; rubber roller, which is arranged at the bottom of the printer lower mechanism and corresponds to the printing assembly vertically; front paper supporting and blocking cover, which is detachably installed at the paper outlet of the front side of the printer lower mechanism, and is arranged between the rubber roller and the front paper supporting and blocking cover, wherein the front paper supporting and blocking cover is a plastic part containing a soft magnetic material of ferrite; RFID assembly, which is assembled with the front paper supporting and blocking cover, and is arranged inside the front paper supporting and blocking cover and towards the rubber roller, wherein the RFID assembly is configured to generate a data receiving area, and the top of the generated data receiving area is attached to the inner lower surface of the front paper supporting and blocking cover, and the distance between the front end of the front paper supporting and blocking cover and the vertical cutting plane of the rubber roller is between 2-2.5mm; the RFID assembly comprises an RFID transmitter and an RFID receiver, wherein the RFID transmitter is connected and installed inside the front end of the front paper supporting and blocking cover, the RFID receiver is connected and arranged inside the upper end of the front paper supporting and blocking cover, and the RFID receiver is located above the RFID transmitter and can realize data transmission configuration; the front paper supporting and blocking cover comprises a positioning frame formed at the rear part thereof, wherein the positioning frame is in the structure of a rectangular frame body, and the rear part of the front paper supporting and blocking cover further protrudes a clamping column, and the RFID receiver is fixedly clamped in the clamping column and the inner wall at the top of the positioning frame; further comprising a heat dissipation aluminum block and a heat dissipation silicone grease, wherein the RFID transmitter is locked and fixed in the front paper supporting and blocking cover together with the heat dissipation aluminum block through screws, and the heat dissipation silicone grease is arranged between the RFID transmitter and the heat dissipation aluminum block; the positioning frame is provided with clamping blocks at both sides thereof, the printer lower mechanism is provided with clamping grooves at both sides of the paper outlet, and the front paper supporting and blocking cover is connected through the clamping blocks and the clamping grooves; the upper end surface of the front paper supporting and blocking cover comprises protruding guide strips, and the guide strips are arranged in parallel at equal intervals.

2. The printer of claim 1, wherein, the RFID transmitter is arranged vertically, and the RFID receiver is arranged horizontally, and the RFID transmitter emits tag data to the RFID receiver to form a data receiving area.

3. The printer of claim 2, wherein, the front end of the printer lower mechanism is further provided with a limiting plate opposite to the front paper supporting and blocking cover, the limiting plate is provided with multiple limiting plates, the front end surfaces of the multiple limiting plates abut against the front paper supporting and blocking cover, and the adjacent limiting plates form a signal data strengthening space, and in the process of the RFID transmitter emitting signal data to the RFID receiver, the signal data is reflected in the signal data strengthening space and is configured to visualize the tag data to the rubber roller.

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