CN212708591U

CN212708591U - Thermal paper RFID label printer

Info

Publication number: CN212708591U
Application number: CN202021405390.8U
Authority: CN
Inventors: 赵朋飞; 费叶琦
Original assignee: Suzhou Aolianke Intelligent Technology Co ltd
Current assignee: Suzhou Aolianke Intelligent Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-03-16
Anticipated expiration: 2030-07-16

Abstract

The utility model relates to a temperature sensing paper RFID label printer, including shell, mainboard, RFID module, RFID antenna module, thermal printing head, label sensor and shielding storehouse, the mainboard is connected with RFID module and thermal printing head respectively, be equipped with the label passageway in the shell, thermal printing head and RFID antenna module set up in label passageway both sides, the label sensor is located label passageway one side and is located the thermal printing head upper reaches, label passageway and shielding storehouse intercommunication. The utility model discloses a temperature sensing paper RFID label printer can print the temperature sensing paper label of taking the RFID function, also can print the ordinary label that does not take the RFID function, adopts battery powered, small in size conveniently carries, satisfies the scene that express delivery, commodity circulation these needs removed and use, also can use at indoor scenes such as retail, storage.

Description

Thermal paper RFID label printer

Technical Field

The utility model relates to a printer technical field, in particular to thermal paper RFID label printer.

Background

The RFID (radio frequency identification) technology is a non-contact wireless identification technology and is widely applied to the fields of clothing, asset management, logistics express delivery, product tracing, unmanned retail and the like. The RFID system consists of software, an RFID reader-writer and an RFID electronic tag. The frequency can be divided into three types, namely high frequency (13.56MHz), ultrahigh frequency (860-960 MHz) and low frequency (125KHz) according to the working frequency. The electronic tag can be divided into an active technology and a passive technology according to whether the electronic tag contains a power source or not. Currently, passive high-frequency and ultrahigh-frequency RFID technologies are widely used. The high-frequency recognition is close to the reading distance, and is in centimeter level, and is mainly applied to identity recognition, such as identity cards, access control cards, book management and the like. The ultrahigh frequency identification and reading distance is long and can reach more than 10 meters, the ultrahigh frequency identification and reading device is mainly used in the fields of equipment inspection, clothing management, warehousing and warehousing, electronic license plates and the like, batch non-contact reading can be achieved, scanning is not needed one by one like a bar code technology, the working efficiency is improved, and the cost is saved.

As a writing device of the RFID label, the RFID printer can quickly and automatically write required contents into the RFID electronic label, and simultaneously print bar codes, two-dimensional codes or text information on the surface. The RFID printer that is commonly used at present is based on thermal transfer technique, needs the typewriter ribbon, and is bulky, portable. The traditional thermal printer is flexible and convenient, does not need a ribbon, is easy to carry, is commonly used for mobile application, but does not have the RFID function and cannot write information into the RFID label. As RFID electronic tags become popular, thermal paper tags with RFID functions will also be used in large quantities, so that a portable printer capable of printing such tags is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve prior art's problem, provide one kind and can print the temperature sensing paper label of taking the RFID function, also can print the ordinary temperature sensing paper RFID label printer who does not take the label of RFID function.

The specific technical scheme is as follows: the utility model provides a thermal paper RFID label printer, includes the shell, the mainboard, the RFID module, RFID antenna module, thermal printing head, label sensor and shielding storehouse, the mainboard is connected with RFID module and thermal printing head respectively, be equipped with the label passageway in the shell, thermal printing head and RFID antenna module set up both sides about the label passageway, the label sensor is located label passageway one side and is located the thermal printing head upper reaches, label passageway and shielding storehouse intercommunication.

The following is the attached technical proposal of the utility model.

Preferably, the thermal print head and the RFID antenna module are aligned one above the other.

Preferably, the RFID antenna module comprises an RFID antenna and an antenna shielding case, and the RFID antenna is installed inside the metal shielding case.

As preferred scheme, still include bluetooth module, bluetooth module and mainboard connection.

As a preferred scheme, the device also comprises a motor and a rubber roller, wherein the motor is connected with the main board, and the rubber roller is driven by the motor.

Preferably, the thermal print head and the label sensor are arranged on the upper cover of the printer.

As the preferred scheme, still include bee calling organ and pilot lamp, the mainboard has MCU, and MCU is connected with bee calling organ and pilot lamp respectively.

As a preferred scheme, the shielding cover is made of metal materials, and wave-absorbing materials are attached to the inner wall of the shielding cover.

Preferably, the battery is further included, and the battery is connected with the main board.

Preferably, the width of the RFID antenna module is smaller than the width of the tag.

The technical effects of the utility model: the utility model discloses a temperature sensing paper RFID label printer can print the temperature sensing paper label of taking the RFID function, also can print the ordinary label that does not take the RFID function, adopts battery powered, small in size conveniently carries, satisfies the scene that express delivery, commodity circulation these needs removed and use, also can use at indoor scenes such as retail, storage.

Drawings

Fig. 1 is a schematic diagram of a thermal paper RFID label printer according to an embodiment of the present invention.

Fig. 2 is a schematic block diagram of a thermal paper RFID label printer according to an embodiment of the present invention.

Detailed Description

The essential features and advantages of the invention will be further explained below with reference to examples, but the invention is not limited to the embodiments listed.

As shown in fig. 1 and fig. 2, the thermal paper RFID label printer of this embodiment includes a housing 17, a main board 14, an RFID module 19, an RFID antenna module 7, a thermal print head 3, a label sensor 12, and a shielding bin 8, where the main board 14 is connected to the RFID module 19 and the thermal print head 3, respectively, and a label passage is provided in the housing 17, through which a label is output. The thermal printing head 3 and the RFID antenna module 7 are arranged on the upper side and the lower side of the label channel, the label sensor is positioned on one side of the label channel and positioned on the upper stream of the thermal printing head, and the label channel is communicated with the shielding bin. In the above technical solution, the main board 14 controls the action and communication of the whole printer, and prints the user information on the thermal label 11 through the thermal print head 3, and controls the RFID module 19 to write the related information into the RFID chip built in the label. The RFID module 19 has an automatic power adjustment function, and when a tag is read, the transmission power is automatically adjusted according to the read RSSI (received signal strength) of the tag and the number of tags, so that it is ensured that only the current tag is read at each time. Meanwhile, according to the RSSI (received signal strength) value of the tag, filtering out an interference tag; the thermal print head 3 is responsible for printing the relevant text information onto the label surface. When the RFID module judges that the current label is an abnormal label, the thermal printing head 3 is controlled to print error prompt information (the information can be set by a customer) on the surface of the label, the abnormal label is prevented from being used, and the printer can automatically write and print the content to be printed and written in the next normal label. Because the whole roll of labels 4 all has the RFID function, in order to further reduce the distance between the label scroll 4 and the label currently being printed, reduce the volume of the printer, and prevent other labels from causing interference to the label currently being printed, the installation area of the whole label roll is shielded, the metal shielding bin 8 is adopted for shielding, and conductive paint or other conductive coatings can be sprayed in the label roll placing bin to play a shielding role. The label sensor 12 is installed on the upper cover of the printer and used for detecting the position of the label and transmitting the position information to the main board MCU, and the main board controls the thermal printing head 3 and the RFID module 19 to print the label and write information. The shell 17 is made of PC or ABS and comprises an upper cover, a battery cover, keys, an indicator light and the like. The upper cover can be opened and closed, and the label is convenient to replace. The key is used for basic setting, and the pilot lamp is instructed operating condition.

In this embodiment, the thermal print head and the RFID antenna module are aligned up and down. The thermal printing head 3 and the antenna module 7 are arranged in an up-and-down alignment mode and are respectively fixed above and below the label, so that the size of the printer can be effectively reduced; the thermal printing head 3 is fixedly arranged on the upper cover of the printer and is connected with the main board through a flexible flat cable. The thermal printing head can move along with the upper cover. The thermal print head 3 cooperates with the motor 18 to print out the text or pattern desired by the user.

In this embodiment, the RFID antenna module includes an RFID antenna 5 and an antenna shield 6, and the RFID antenna is installed inside the metal shield. The modular design can be changed as a whole. The RFID antenna 5 is fixed inside the metal shield case 6. The metal shielding cover 6 plays a role in shielding electromagnetic waves, and prevents the electromagnetic waves of the RFID antenna 5 from radiating to the tags around the current tags to cause interference on current reading and writing. The shielding case 6 is made of metal, the wave-absorbing material is pasted on the inner wall of the shielding case, electromagnetic waves radiated by the antenna are absorbed, the influence of reflection of the electromagnetic waves in the shielding case on the radio frequency performance is reduced, meanwhile, the influence of the metal material on the performance of the antenna 5 is reduced, the distance between the antenna and the shielding case is shortened, and the antenna module 7 can be miniaturized. The width of the antenna module 7 must be smaller than the width of the label, so that the problem that the printer cannot identify due to the fact that two labels are simultaneously present in the antenna radiation area is prevented. By adopting the modular design, the antenna module 7 can be replaced according to the size and type of the label to be printed.

In this embodiment, the thermal paper RFID tag printer further includes a bluetooth module 13, and the bluetooth module 13 is connected to the main board 14. And the Bluetooth module 13 is responsible for communicating with an upper computer, and the upper computer comprises equipment such as a mobile phone, a computer and the like. And the upper computer software transmits the information to be printed to the printer through the Bluetooth.

In this embodiment, the thermal paper RFID tag printer further includes a motor 18 and a rubber roller, the motor 18 is connected to the main board 14, and the rubber roller is driven by the motor 18. The rubber roller is driven by a motor 18 and rotates according to the printing speed set by a customer to control the paper feeding speed. In this embodiment, the rubber roller includes a first rubber roller 16 and a second rubber roller 9, the first rubber roller 16 is connected with the second rubber roller 9 through a gear, is connected with the upper cover of the housing, and can be opened along with the upper cover, so as to facilitate replacement of the paper roll 4, and the rubber roller 16 is matched with the rubber roller 9 to output the label.

In this embodiment, the thermal head 3 and the label sensor 12 are provided on the printer upper cover. The label sensor 12 is installed on the upper cover of the printer and used for detecting the position of the label and transmitting the position information to the main board MCU, and the main board controls the thermal printing head 3 and the RFID module 19 to print the label and write information.

In this embodiment, thermal paper RFID label printer still includes bee calling organ and pilot lamp, the mainboard has MCU, and MCU is connected with bee calling organ and pilot lamp respectively.

In this embodiment, the thermal paper RFID tag printer further includes a battery 15, and the battery 15 is connected to the main board 14. The battery 15 adopts a rechargeable lithium battery and can be replaced, and a standby battery can be replaced at any time when the battery is conveniently used in outdoor mobile application. The mainboard has power management function, can charge for the battery through the USB interface of printer.

In this embodiment, the width of the RFID antenna module is smaller than the width of the tag.

In this embodiment, the MCU, i.e., the main control chip, is responsible for controlling and communicating each module, and processing software algorithms. And a tag sensor detecting a tag position. And the Bluetooth module is communicated with the upper computer. And the RFID module reads the RFID label information and writes data into the label. And the RFID antenna is connected with the RFID module through a feeder line and used for receiving and sending radio frequency signals. And the motor driving module controls the motor. The motor adopts step motor, drives the rubber roll and carries the label, realizes printing the function. The thermal printing head prints dot-matrix information and is matched with the motor to print characters or patterns required by a user. And power supply management, which is used for outputting various voltages required by the system to work and managing the charging and discharging of the battery. USB interface, charge, and with upper position and communication. The printer and the upper computer can be connected through Bluetooth or can be directly connected with the computer through a USB interface. The keys comprise a power supply key and a paper feeding key. The buzzer and the indicator light are matched with each other to complete indication and reminding of various information.

The thermal paper RFID label printer of the present embodiment works as follows:

1. when the system is powered on, the system carries out self-checking, whether the thermosensitive printing head, the RFID module, the RFID antenna connection and the Bluetooth module connection are normal or not is judged, sound and light alarm reminding is carried out when the connection is abnormal, and notification information is sent to an upper computer through a Bluetooth or a USB interface.

2. The printer is connected with a mobile phone or a computer through a Bluetooth or USB interface. When the bluetooth is connected for the first time, need bind the operation on the host computer.

3. The upper computer sends the data to be printed to the printer through the Bluetooth or USB interface.

4. And after the printer receives the printed information, the RFID module reads the RFID information of the current label, if the information is read normally, the information is written into the label, and meanwhile, the thermal printing head and the motor are controlled to act, so that the text information to be printed is printed on the surface of the label. If the RFID module reads abnormity and cannot read the label information, the damage of the RFID chip or the antenna of the current label can be judged, and preset abnormity prompt information is printed on the surface of the current label. And repeating the step 4, and printing the information which is not printed currently to the next normal label.

5. During printing, the MCU determines the current label position based on the data from the label sensor 12 and the set printing speed, and starts printing text information and writing RFID information when the label is moved to the thermal head. Whether the labels exist or not is judged in the printing process, the number of the labels of each roll can be set in the upper computer, the printer calculates the residual labels according to the number of the printed labels and the total number of the labels of each roll, and when the number of the printed labels is not enough, reminding information is sent.

6. Because the performance of each label is different, in the working process, printer software automatically adjusts the RFID power according to the read RSSI (received signal strength) value of the label, so that the transmitted signal is prevented from being received and reflected by other labels except the current printed label, meanwhile, the label works at the minimum power required by successful writing of the label, and the service time of a battery is prolonged.

7. And (4) interference suppression. The interference experienced by the currently printing label 11 mainly originates from the previous printed label 2 and the next label 10 to be printed, and the antenna may receive signals from both the label 2 and the label 10. For label 2, the software has a print record because it has already printed, and can be filtered by software methods. In the process of printing the label 11, the label 10 does not completely go out of the shielding bin, the shielding bin has shielding effect on the signal of the label 10, and when the label 10 partially goes out of the shielding bin, the signal intensity is smaller than that of the label 11, so that the label can be filtered out through a software algorithm.

The thermal paper RFID label printer of this embodiment can print the thermal paper label of taking the RFID function, also can print ordinary label of not taking the RFID function, adopts battery powered, small in size conveniently carries, satisfies the scenes that express delivery, commodity circulation these needs remove the application, also can use at indoor scenes such as retail, storage.

It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a thermal paper RFID label printer, its characterized in that includes the shell, the mainboard, the RFID module, RFID antenna module, thermal printing head, label sensor and shielding storehouse, the mainboard is connected with RFID module and thermal printing head respectively, be equipped with the label passageway in the shell, thermal printing head and RFID antenna module set up both sides about the label passageway, the label sensor is located label passageway one side and is located the thermal printing head upper reaches, label passageway and shielding storehouse intercommunication.

2. The thermal paper RFID label printer of claim 1, wherein the thermal print head and the RFID antenna module are aligned one above the other.

3. The thermal paper RFID label printer of claim 2, wherein the RFID antenna module comprises an RFID antenna and an antenna shield, the RFID antenna being mounted inside the metal shield.

4. The thermal paper RFID tag printer of claim 3, further comprising a Bluetooth module, the Bluetooth module being coupled to the motherboard.

5. The thermal paper RFID label printer of claim 4, further comprising a motor and a rubber roller, the motor being connected to the motherboard, the rubber roller being driven by the motor.

6. The thermal paper RFID label printer of claim 5, wherein the thermal print head and label sensor are disposed on a printer cover.

7. The thermal paper RFID label printer of claim 6, further comprising a buzzer and an indicator light, wherein the main board has an MCU, and the MCU is connected with the buzzer and the indicator light respectively.

8. The thermal paper RFID label printer of claim 7, wherein the shielding case is made of a metal material, and a wave-absorbing material is applied to the inner wall of the shielding case.

9. The thermal paper RFID label printer of claim 8, further comprising a battery, the battery being coupled to the motherboard.

10. The thermal paper RFID label printer of claim 9, wherein the width of the RFID antenna module is less than the width of the label.